Mercurial > hg > nginx
annotate src/http/modules/ngx_http_grpc_module.c @ 7619:6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
| author | Vladimir Homutov <vl@nginx.com> |
|---|---|
| date | Fri, 17 Jan 2020 12:13:02 +0300 |
| parents | 8981dbb12254 |
| children | 2096b21fcd10 |
| rev | line source |
|---|---|
| 7233 | 1 |
| 2 /* | |
| 3 * Copyright (C) Maxim Dounin | |
| 4 * Copyright (C) Nginx, Inc. | |
| 5 */ | |
| 6 | |
| 7 | |
| 8 #include <ngx_config.h> | |
| 9 #include <ngx_core.h> | |
| 10 #include <ngx_http.h> | |
| 11 | |
| 12 | |
| 13 typedef struct { | |
| 14 ngx_array_t *flushes; | |
| 15 ngx_array_t *lengths; | |
| 16 ngx_array_t *values; | |
| 17 ngx_hash_t hash; | |
| 18 } ngx_http_grpc_headers_t; | |
| 19 | |
| 20 | |
| 21 typedef struct { | |
| 22 ngx_http_upstream_conf_t upstream; | |
| 23 | |
| 24 ngx_http_grpc_headers_t headers; | |
| 25 ngx_array_t *headers_source; | |
| 26 | |
| 27 ngx_str_t host; | |
| 28 ngx_uint_t host_set; | |
| 29 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
30 ngx_array_t *grpc_lengths; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
31 ngx_array_t *grpc_values; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
32 |
| 7233 | 33 #if (NGX_HTTP_SSL) |
| 34 ngx_uint_t ssl; | |
| 35 ngx_uint_t ssl_protocols; | |
| 36 ngx_str_t ssl_ciphers; | |
| 37 ngx_uint_t ssl_verify_depth; | |
| 38 ngx_str_t ssl_trusted_certificate; | |
| 39 ngx_str_t ssl_crl; | |
| 40 ngx_str_t ssl_certificate; | |
| 41 ngx_str_t ssl_certificate_key; | |
| 42 ngx_array_t *ssl_passwords; | |
| 43 #endif | |
| 44 } ngx_http_grpc_loc_conf_t; | |
| 45 | |
| 46 | |
| 47 typedef enum { | |
| 48 ngx_http_grpc_st_start = 0, | |
| 49 ngx_http_grpc_st_length_2, | |
| 50 ngx_http_grpc_st_length_3, | |
| 51 ngx_http_grpc_st_type, | |
| 52 ngx_http_grpc_st_flags, | |
| 53 ngx_http_grpc_st_stream_id, | |
| 54 ngx_http_grpc_st_stream_id_2, | |
| 55 ngx_http_grpc_st_stream_id_3, | |
| 56 ngx_http_grpc_st_stream_id_4, | |
| 57 ngx_http_grpc_st_payload, | |
| 58 ngx_http_grpc_st_padding | |
| 59 } ngx_http_grpc_state_e; | |
| 60 | |
| 61 | |
| 62 typedef struct { | |
| 63 size_t init_window; | |
| 64 size_t send_window; | |
| 65 size_t recv_window; | |
| 66 ngx_uint_t last_stream_id; | |
| 67 } ngx_http_grpc_conn_t; | |
| 68 | |
| 69 | |
| 70 typedef struct { | |
| 71 ngx_http_grpc_state_e state; | |
| 72 ngx_uint_t frame_state; | |
| 73 ngx_uint_t fragment_state; | |
| 74 | |
| 75 ngx_chain_t *in; | |
| 76 ngx_chain_t *out; | |
| 77 ngx_chain_t *free; | |
| 78 ngx_chain_t *busy; | |
| 79 | |
| 80 ngx_http_grpc_conn_t *connection; | |
| 81 | |
| 82 ngx_uint_t id; | |
| 83 | |
|
7379
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
84 ngx_uint_t pings; |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
85 ngx_uint_t settings; |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
86 |
| 7233 | 87 ssize_t send_window; |
| 88 size_t recv_window; | |
| 89 | |
| 90 size_t rest; | |
| 91 ngx_uint_t stream_id; | |
| 92 u_char type; | |
| 93 u_char flags; | |
| 94 u_char padding; | |
| 95 | |
| 96 ngx_uint_t error; | |
| 97 ngx_uint_t window_update; | |
| 98 | |
| 99 ngx_uint_t setting_id; | |
| 100 ngx_uint_t setting_value; | |
| 101 | |
| 102 u_char ping_data[8]; | |
| 103 | |
| 104 ngx_uint_t index; | |
| 105 ngx_str_t name; | |
| 106 ngx_str_t value; | |
| 107 | |
| 108 u_char *field_end; | |
| 109 size_t field_length; | |
| 110 size_t field_rest; | |
| 111 u_char field_state; | |
| 112 | |
| 113 unsigned literal:1; | |
| 114 unsigned field_huffman:1; | |
| 115 | |
| 116 unsigned header_sent:1; | |
| 117 unsigned output_closed:1; | |
|
7350
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
118 unsigned output_blocked:1; |
| 7233 | 119 unsigned parsing_headers:1; |
| 120 unsigned end_stream:1; | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
121 unsigned done:1; |
| 7233 | 122 unsigned status:1; |
| 123 | |
| 124 ngx_http_request_t *request; | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
125 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
126 ngx_str_t host; |
| 7233 | 127 } ngx_http_grpc_ctx_t; |
| 128 | |
| 129 | |
| 130 typedef struct { | |
| 131 u_char length_0; | |
| 132 u_char length_1; | |
| 133 u_char length_2; | |
| 134 u_char type; | |
| 135 u_char flags; | |
| 136 u_char stream_id_0; | |
| 137 u_char stream_id_1; | |
| 138 u_char stream_id_2; | |
| 139 u_char stream_id_3; | |
| 140 } ngx_http_grpc_frame_t; | |
| 141 | |
| 142 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
143 static ngx_int_t ngx_http_grpc_eval(ngx_http_request_t *r, |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
144 ngx_http_grpc_ctx_t *ctx, ngx_http_grpc_loc_conf_t *glcf); |
| 7233 | 145 static ngx_int_t ngx_http_grpc_create_request(ngx_http_request_t *r); |
| 146 static ngx_int_t ngx_http_grpc_reinit_request(ngx_http_request_t *r); | |
| 147 static ngx_int_t ngx_http_grpc_body_output_filter(void *data, ngx_chain_t *in); | |
| 148 static ngx_int_t ngx_http_grpc_process_header(ngx_http_request_t *r); | |
| 149 static ngx_int_t ngx_http_grpc_filter_init(void *data); | |
| 150 static ngx_int_t ngx_http_grpc_filter(void *data, ssize_t bytes); | |
| 151 | |
| 152 static ngx_int_t ngx_http_grpc_parse_frame(ngx_http_request_t *r, | |
| 153 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 154 static ngx_int_t ngx_http_grpc_parse_header(ngx_http_request_t *r, | |
| 155 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 156 static ngx_int_t ngx_http_grpc_parse_fragment(ngx_http_request_t *r, | |
| 157 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 158 static ngx_int_t ngx_http_grpc_validate_header_name(ngx_http_request_t *r, | |
| 159 ngx_str_t *s); | |
| 160 static ngx_int_t ngx_http_grpc_validate_header_value(ngx_http_request_t *r, | |
| 161 ngx_str_t *s); | |
| 162 static ngx_int_t ngx_http_grpc_parse_rst_stream(ngx_http_request_t *r, | |
| 163 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 164 static ngx_int_t ngx_http_grpc_parse_goaway(ngx_http_request_t *r, | |
| 165 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 166 static ngx_int_t ngx_http_grpc_parse_window_update(ngx_http_request_t *r, | |
| 167 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 168 static ngx_int_t ngx_http_grpc_parse_settings(ngx_http_request_t *r, | |
| 169 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 170 static ngx_int_t ngx_http_grpc_parse_ping(ngx_http_request_t *r, | |
| 171 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 172 | |
| 173 static ngx_int_t ngx_http_grpc_send_settings_ack(ngx_http_request_t *r, | |
| 174 ngx_http_grpc_ctx_t *ctx); | |
| 175 static ngx_int_t ngx_http_grpc_send_ping_ack(ngx_http_request_t *r, | |
| 176 ngx_http_grpc_ctx_t *ctx); | |
| 177 static ngx_int_t ngx_http_grpc_send_window_update(ngx_http_request_t *r, | |
| 178 ngx_http_grpc_ctx_t *ctx); | |
| 179 | |
| 180 static ngx_chain_t *ngx_http_grpc_get_buf(ngx_http_request_t *r, | |
| 181 ngx_http_grpc_ctx_t *ctx); | |
| 182 static ngx_http_grpc_ctx_t *ngx_http_grpc_get_ctx(ngx_http_request_t *r); | |
| 183 static ngx_int_t ngx_http_grpc_get_connection_data(ngx_http_request_t *r, | |
| 184 ngx_http_grpc_ctx_t *ctx, ngx_peer_connection_t *pc); | |
| 185 static void ngx_http_grpc_cleanup(void *data); | |
| 186 | |
| 187 static void ngx_http_grpc_abort_request(ngx_http_request_t *r); | |
| 188 static void ngx_http_grpc_finalize_request(ngx_http_request_t *r, | |
| 189 ngx_int_t rc); | |
| 190 | |
|
7234
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
191 static ngx_int_t ngx_http_grpc_internal_trailers_variable( |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
192 ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
193 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
194 static ngx_int_t ngx_http_grpc_add_variables(ngx_conf_t *cf); |
| 7233 | 195 static void *ngx_http_grpc_create_loc_conf(ngx_conf_t *cf); |
| 196 static char *ngx_http_grpc_merge_loc_conf(ngx_conf_t *cf, | |
| 197 void *parent, void *child); | |
| 198 static ngx_int_t ngx_http_grpc_init_headers(ngx_conf_t *cf, | |
| 199 ngx_http_grpc_loc_conf_t *conf, ngx_http_grpc_headers_t *headers, | |
| 200 ngx_keyval_t *default_headers); | |
| 201 | |
| 202 static char *ngx_http_grpc_pass(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 203 void *conf); | |
| 204 | |
| 205 #if (NGX_HTTP_SSL) | |
| 206 static char *ngx_http_grpc_ssl_password_file(ngx_conf_t *cf, | |
| 207 ngx_command_t *cmd, void *conf); | |
| 208 static ngx_int_t ngx_http_grpc_set_ssl(ngx_conf_t *cf, | |
| 209 ngx_http_grpc_loc_conf_t *glcf); | |
| 210 #endif | |
| 211 | |
| 212 | |
| 213 static ngx_conf_bitmask_t ngx_http_grpc_next_upstream_masks[] = { | |
| 214 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR }, | |
| 215 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT }, | |
| 216 { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER }, | |
| 217 { ngx_string("non_idempotent"), NGX_HTTP_UPSTREAM_FT_NON_IDEMPOTENT }, | |
| 218 { ngx_string("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500 }, | |
| 219 { ngx_string("http_502"), NGX_HTTP_UPSTREAM_FT_HTTP_502 }, | |
| 220 { ngx_string("http_503"), NGX_HTTP_UPSTREAM_FT_HTTP_503 }, | |
| 221 { ngx_string("http_504"), NGX_HTTP_UPSTREAM_FT_HTTP_504 }, | |
| 222 { ngx_string("http_403"), NGX_HTTP_UPSTREAM_FT_HTTP_403 }, | |
| 223 { ngx_string("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404 }, | |
| 224 { ngx_string("http_429"), NGX_HTTP_UPSTREAM_FT_HTTP_429 }, | |
| 225 { ngx_string("off"), NGX_HTTP_UPSTREAM_FT_OFF }, | |
| 226 { ngx_null_string, 0 } | |
| 227 }; | |
| 228 | |
| 229 | |
| 230 #if (NGX_HTTP_SSL) | |
| 231 | |
| 232 static ngx_conf_bitmask_t ngx_http_grpc_ssl_protocols[] = { | |
| 233 { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, | |
| 234 { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, | |
| 235 { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, | |
| 236 { ngx_string("TLSv1.1"), NGX_SSL_TLSv1_1 }, | |
| 237 { ngx_string("TLSv1.2"), NGX_SSL_TLSv1_2 }, | |
| 238 { ngx_string("TLSv1.3"), NGX_SSL_TLSv1_3 }, | |
| 239 { ngx_null_string, 0 } | |
| 240 }; | |
| 241 | |
| 242 #endif | |
| 243 | |
| 244 | |
| 245 static ngx_command_t ngx_http_grpc_commands[] = { | |
| 246 | |
| 247 { ngx_string("grpc_pass"), | |
| 248 NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1, | |
| 249 ngx_http_grpc_pass, | |
| 250 NGX_HTTP_LOC_CONF_OFFSET, | |
| 251 0, | |
| 252 NULL }, | |
| 253 | |
| 254 { ngx_string("grpc_bind"), | |
| 255 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12, | |
| 256 ngx_http_upstream_bind_set_slot, | |
| 257 NGX_HTTP_LOC_CONF_OFFSET, | |
| 258 offsetof(ngx_http_grpc_loc_conf_t, upstream.local), | |
| 259 NULL }, | |
| 260 | |
|
7371
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
261 { ngx_string("grpc_socket_keepalive"), |
|
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
262 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
|
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
263 ngx_conf_set_flag_slot, |
|
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
264 NGX_HTTP_LOC_CONF_OFFSET, |
|
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
265 offsetof(ngx_http_grpc_loc_conf_t, upstream.socket_keepalive), |
|
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
266 NULL }, |
|
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
267 |
| 7233 | 268 { ngx_string("grpc_connect_timeout"), |
| 269 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 270 ngx_conf_set_msec_slot, | |
| 271 NGX_HTTP_LOC_CONF_OFFSET, | |
| 272 offsetof(ngx_http_grpc_loc_conf_t, upstream.connect_timeout), | |
| 273 NULL }, | |
| 274 | |
| 275 { ngx_string("grpc_send_timeout"), | |
| 276 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 277 ngx_conf_set_msec_slot, | |
| 278 NGX_HTTP_LOC_CONF_OFFSET, | |
| 279 offsetof(ngx_http_grpc_loc_conf_t, upstream.send_timeout), | |
| 280 NULL }, | |
| 281 | |
| 282 { ngx_string("grpc_intercept_errors"), | |
| 283 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 284 ngx_conf_set_flag_slot, | |
| 285 NGX_HTTP_LOC_CONF_OFFSET, | |
| 286 offsetof(ngx_http_grpc_loc_conf_t, upstream.intercept_errors), | |
| 287 NULL }, | |
| 288 | |
| 289 { ngx_string("grpc_buffer_size"), | |
| 290 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 291 ngx_conf_set_size_slot, | |
| 292 NGX_HTTP_LOC_CONF_OFFSET, | |
| 293 offsetof(ngx_http_grpc_loc_conf_t, upstream.buffer_size), | |
| 294 NULL }, | |
| 295 | |
| 296 { ngx_string("grpc_read_timeout"), | |
| 297 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 298 ngx_conf_set_msec_slot, | |
| 299 NGX_HTTP_LOC_CONF_OFFSET, | |
| 300 offsetof(ngx_http_grpc_loc_conf_t, upstream.read_timeout), | |
| 301 NULL }, | |
| 302 | |
| 303 { ngx_string("grpc_next_upstream"), | |
| 304 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
| 305 ngx_conf_set_bitmask_slot, | |
| 306 NGX_HTTP_LOC_CONF_OFFSET, | |
| 307 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream), | |
| 308 &ngx_http_grpc_next_upstream_masks }, | |
| 309 | |
| 310 { ngx_string("grpc_next_upstream_tries"), | |
| 311 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 312 ngx_conf_set_num_slot, | |
| 313 NGX_HTTP_LOC_CONF_OFFSET, | |
| 314 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream_tries), | |
| 315 NULL }, | |
| 316 | |
| 317 { ngx_string("grpc_next_upstream_timeout"), | |
| 318 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 319 ngx_conf_set_msec_slot, | |
| 320 NGX_HTTP_LOC_CONF_OFFSET, | |
| 321 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream_timeout), | |
| 322 NULL }, | |
| 323 | |
| 324 { ngx_string("grpc_set_header"), | |
| 325 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, | |
| 326 ngx_conf_set_keyval_slot, | |
| 327 NGX_HTTP_LOC_CONF_OFFSET, | |
| 328 offsetof(ngx_http_grpc_loc_conf_t, headers_source), | |
| 329 NULL }, | |
| 330 | |
| 331 { ngx_string("grpc_pass_header"), | |
| 332 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 333 ngx_conf_set_str_array_slot, | |
| 334 NGX_HTTP_LOC_CONF_OFFSET, | |
| 335 offsetof(ngx_http_grpc_loc_conf_t, upstream.pass_headers), | |
| 336 NULL }, | |
| 337 | |
| 338 { ngx_string("grpc_hide_header"), | |
| 339 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 340 ngx_conf_set_str_array_slot, | |
| 341 NGX_HTTP_LOC_CONF_OFFSET, | |
| 342 offsetof(ngx_http_grpc_loc_conf_t, upstream.hide_headers), | |
| 343 NULL }, | |
| 344 | |
| 345 { ngx_string("grpc_ignore_headers"), | |
| 346 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
| 347 ngx_conf_set_bitmask_slot, | |
| 348 NGX_HTTP_LOC_CONF_OFFSET, | |
| 349 offsetof(ngx_http_grpc_loc_conf_t, upstream.ignore_headers), | |
| 350 &ngx_http_upstream_ignore_headers_masks }, | |
| 351 | |
| 352 #if (NGX_HTTP_SSL) | |
| 353 | |
| 354 { ngx_string("grpc_ssl_session_reuse"), | |
| 355 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 356 ngx_conf_set_flag_slot, | |
| 357 NGX_HTTP_LOC_CONF_OFFSET, | |
| 358 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_session_reuse), | |
| 359 NULL }, | |
| 360 | |
| 361 { ngx_string("grpc_ssl_protocols"), | |
| 362 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
| 363 ngx_conf_set_bitmask_slot, | |
| 364 NGX_HTTP_LOC_CONF_OFFSET, | |
| 365 offsetof(ngx_http_grpc_loc_conf_t, ssl_protocols), | |
| 366 &ngx_http_grpc_ssl_protocols }, | |
| 367 | |
| 368 { ngx_string("grpc_ssl_ciphers"), | |
| 369 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 370 ngx_conf_set_str_slot, | |
| 371 NGX_HTTP_LOC_CONF_OFFSET, | |
| 372 offsetof(ngx_http_grpc_loc_conf_t, ssl_ciphers), | |
| 373 NULL }, | |
| 374 | |
| 375 { ngx_string("grpc_ssl_name"), | |
| 376 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 377 ngx_http_set_complex_value_slot, | |
| 378 NGX_HTTP_LOC_CONF_OFFSET, | |
| 379 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_name), | |
| 380 NULL }, | |
| 381 | |
| 382 { ngx_string("grpc_ssl_server_name"), | |
| 383 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 384 ngx_conf_set_flag_slot, | |
| 385 NGX_HTTP_LOC_CONF_OFFSET, | |
| 386 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_server_name), | |
| 387 NULL }, | |
| 388 | |
| 389 { ngx_string("grpc_ssl_verify"), | |
| 390 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 391 ngx_conf_set_flag_slot, | |
| 392 NGX_HTTP_LOC_CONF_OFFSET, | |
| 393 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_verify), | |
| 394 NULL }, | |
| 395 | |
| 396 { ngx_string("grpc_ssl_verify_depth"), | |
| 397 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 398 ngx_conf_set_num_slot, | |
| 399 NGX_HTTP_LOC_CONF_OFFSET, | |
| 400 offsetof(ngx_http_grpc_loc_conf_t, ssl_verify_depth), | |
| 401 NULL }, | |
| 402 | |
| 403 { ngx_string("grpc_ssl_trusted_certificate"), | |
| 404 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 405 ngx_conf_set_str_slot, | |
| 406 NGX_HTTP_LOC_CONF_OFFSET, | |
| 407 offsetof(ngx_http_grpc_loc_conf_t, ssl_trusted_certificate), | |
| 408 NULL }, | |
| 409 | |
| 410 { ngx_string("grpc_ssl_crl"), | |
| 411 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 412 ngx_conf_set_str_slot, | |
| 413 NGX_HTTP_LOC_CONF_OFFSET, | |
| 414 offsetof(ngx_http_grpc_loc_conf_t, ssl_crl), | |
| 415 NULL }, | |
| 416 | |
| 417 { ngx_string("grpc_ssl_certificate"), | |
| 418 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 419 ngx_conf_set_str_slot, | |
| 420 NGX_HTTP_LOC_CONF_OFFSET, | |
| 421 offsetof(ngx_http_grpc_loc_conf_t, ssl_certificate), | |
| 422 NULL }, | |
| 423 | |
| 424 { ngx_string("grpc_ssl_certificate_key"), | |
| 425 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 426 ngx_conf_set_str_slot, | |
| 427 NGX_HTTP_LOC_CONF_OFFSET, | |
| 428 offsetof(ngx_http_grpc_loc_conf_t, ssl_certificate_key), | |
| 429 NULL }, | |
| 430 | |
| 431 { ngx_string("grpc_ssl_password_file"), | |
| 432 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 433 ngx_http_grpc_ssl_password_file, | |
| 434 NGX_HTTP_LOC_CONF_OFFSET, | |
| 435 0, | |
| 436 NULL }, | |
| 437 | |
| 438 #endif | |
| 439 | |
| 440 ngx_null_command | |
| 441 }; | |
| 442 | |
| 443 | |
| 444 static ngx_http_module_t ngx_http_grpc_module_ctx = { | |
|
7234
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
445 ngx_http_grpc_add_variables, /* preconfiguration */ |
| 7233 | 446 NULL, /* postconfiguration */ |
| 447 | |
| 448 NULL, /* create main configuration */ | |
| 449 NULL, /* init main configuration */ | |
| 450 | |
| 451 NULL, /* create server configuration */ | |
| 452 NULL, /* merge server configuration */ | |
| 453 | |
| 454 ngx_http_grpc_create_loc_conf, /* create location configuration */ | |
| 455 ngx_http_grpc_merge_loc_conf /* merge location configuration */ | |
| 456 }; | |
| 457 | |
| 458 | |
| 459 ngx_module_t ngx_http_grpc_module = { | |
| 460 NGX_MODULE_V1, | |
| 461 &ngx_http_grpc_module_ctx, /* module context */ | |
| 462 ngx_http_grpc_commands, /* module directives */ | |
| 463 NGX_HTTP_MODULE, /* module type */ | |
| 464 NULL, /* init master */ | |
| 465 NULL, /* init module */ | |
| 466 NULL, /* init process */ | |
| 467 NULL, /* init thread */ | |
| 468 NULL, /* exit thread */ | |
| 469 NULL, /* exit process */ | |
| 470 NULL, /* exit master */ | |
| 471 NGX_MODULE_V1_PADDING | |
| 472 }; | |
| 473 | |
| 474 | |
| 475 static u_char ngx_http_grpc_connection_start[] = | |
| 476 "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n" /* connection preface */ | |
| 477 | |
| 478 "\x00\x00\x12\x04\x00\x00\x00\x00\x00" /* settings frame */ | |
| 479 "\x00\x01\x00\x00\x00\x00" /* header table size */ | |
| 480 "\x00\x02\x00\x00\x00\x00" /* disable push */ | |
| 481 "\x00\x04\x7f\xff\xff\xff" /* initial window */ | |
| 482 | |
| 483 "\x00\x00\x04\x08\x00\x00\x00\x00\x00" /* window update frame */ | |
| 484 "\x7f\xff\x00\x00"; | |
| 485 | |
| 486 | |
| 487 static ngx_keyval_t ngx_http_grpc_headers[] = { | |
| 488 { ngx_string("Content-Length"), ngx_string("$content_length") }, | |
|
7234
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
489 { ngx_string("TE"), ngx_string("$grpc_internal_trailers") }, |
| 7233 | 490 { ngx_string("Host"), ngx_string("") }, |
| 491 { ngx_string("Connection"), ngx_string("") }, | |
| 492 { ngx_string("Transfer-Encoding"), ngx_string("") }, | |
| 493 { ngx_string("Keep-Alive"), ngx_string("") }, | |
| 494 { ngx_string("Expect"), ngx_string("") }, | |
| 495 { ngx_string("Upgrade"), ngx_string("") }, | |
| 496 { ngx_null_string, ngx_null_string } | |
| 497 }; | |
| 498 | |
| 499 | |
| 500 static ngx_str_t ngx_http_grpc_hide_headers[] = { | |
| 501 ngx_string("Date"), | |
| 502 ngx_string("Server"), | |
| 503 ngx_string("X-Accel-Expires"), | |
| 504 ngx_string("X-Accel-Redirect"), | |
| 505 ngx_string("X-Accel-Limit-Rate"), | |
| 506 ngx_string("X-Accel-Buffering"), | |
| 507 ngx_string("X-Accel-Charset"), | |
| 508 ngx_null_string | |
| 509 }; | |
| 510 | |
| 511 | |
|
7234
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
512 static ngx_http_variable_t ngx_http_grpc_vars[] = { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
513 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
514 { ngx_string("grpc_internal_trailers"), NULL, |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
515 ngx_http_grpc_internal_trailers_variable, 0, |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
516 NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_NOHASH, 0 }, |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
517 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
518 ngx_http_null_variable |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
519 }; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
520 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
521 |
| 7233 | 522 static ngx_int_t |
| 523 ngx_http_grpc_handler(ngx_http_request_t *r) | |
| 524 { | |
| 525 ngx_int_t rc; | |
| 526 ngx_http_upstream_t *u; | |
| 527 ngx_http_grpc_ctx_t *ctx; | |
| 528 ngx_http_grpc_loc_conf_t *glcf; | |
| 529 | |
| 530 if (ngx_http_upstream_create(r) != NGX_OK) { | |
| 531 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 532 } | |
| 533 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
534 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_grpc_ctx_t)); |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
535 if (ctx == NULL) { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
536 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
537 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
538 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
539 ctx->request = r; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
540 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
541 ngx_http_set_ctx(r, ctx, ngx_http_grpc_module); |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
542 |
| 7233 | 543 glcf = ngx_http_get_module_loc_conf(r, ngx_http_grpc_module); |
| 544 | |
| 545 u = r->upstream; | |
| 546 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
547 if (glcf->grpc_lengths == NULL) { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
548 ctx->host = glcf->host; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
549 |
| 7233 | 550 #if (NGX_HTTP_SSL) |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
551 u->ssl = (glcf->upstream.ssl != NULL); |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
552 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
553 if (u->ssl) { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
554 ngx_str_set(&u->schema, "grpcs://"); |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
555 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
556 } else { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
557 ngx_str_set(&u->schema, "grpc://"); |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
558 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
559 #else |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
560 ngx_str_set(&u->schema, "grpc://"); |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
561 #endif |
| 7233 | 562 |
| 563 } else { | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
564 if (ngx_http_grpc_eval(r, ctx, glcf) != NGX_OK) { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
565 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
566 } |
| 7233 | 567 } |
| 568 | |
| 569 u->output.tag = (ngx_buf_tag_t) &ngx_http_grpc_module; | |
| 570 | |
| 571 u->conf = &glcf->upstream; | |
| 572 | |
| 573 u->create_request = ngx_http_grpc_create_request; | |
| 574 u->reinit_request = ngx_http_grpc_reinit_request; | |
| 575 u->process_header = ngx_http_grpc_process_header; | |
| 576 u->abort_request = ngx_http_grpc_abort_request; | |
| 577 u->finalize_request = ngx_http_grpc_finalize_request; | |
| 578 | |
| 579 u->input_filter_init = ngx_http_grpc_filter_init; | |
| 580 u->input_filter = ngx_http_grpc_filter; | |
| 581 u->input_filter_ctx = ctx; | |
| 582 | |
| 583 r->request_body_no_buffering = 1; | |
| 584 | |
| 585 rc = ngx_http_read_client_request_body(r, ngx_http_upstream_init); | |
| 586 | |
| 587 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) { | |
| 588 return rc; | |
| 589 } | |
| 590 | |
| 591 return NGX_DONE; | |
| 592 } | |
| 593 | |
| 594 | |
| 595 static ngx_int_t | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
596 ngx_http_grpc_eval(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
597 ngx_http_grpc_loc_conf_t *glcf) |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
598 { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
599 size_t add; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
600 ngx_url_t url; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
601 ngx_http_upstream_t *u; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
602 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
603 ngx_memzero(&url, sizeof(ngx_url_t)); |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
604 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
605 if (ngx_http_script_run(r, &url.url, glcf->grpc_lengths->elts, 0, |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
606 glcf->grpc_values->elts) |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
607 == NULL) |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
608 { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
609 return NGX_ERROR; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
610 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
611 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
612 if (url.url.len > 7 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
613 && ngx_strncasecmp(url.url.data, (u_char *) "grpc://", 7) == 0) |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
614 { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
615 add = 7; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
616 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
617 } else if (url.url.len > 8 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
618 && ngx_strncasecmp(url.url.data, (u_char *) "grpcs://", 8) == 0) |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
619 { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
620 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
621 #if (NGX_HTTP_SSL) |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
622 add = 8; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
623 r->upstream->ssl = 1; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
624 #else |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
625 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
626 "grpcs protocol requires SSL support"); |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
627 return NGX_ERROR; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
628 #endif |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
629 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
630 } else { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
631 add = 0; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
632 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
633 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
634 u = r->upstream; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
635 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
636 if (add) { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
637 u->schema.len = add; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
638 u->schema.data = url.url.data; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
639 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
640 url.url.data += add; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
641 url.url.len -= add; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
642 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
643 } else { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
644 ngx_str_set(&u->schema, "grpc://"); |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
645 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
646 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
647 url.no_resolve = 1; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
648 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
649 if (ngx_parse_url(r->pool, &url) != NGX_OK) { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
650 if (url.err) { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
651 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
652 "%s in upstream \"%V\"", url.err, &url.url); |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
653 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
654 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
655 return NGX_ERROR; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
656 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
657 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
658 u->resolved = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_resolved_t)); |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
659 if (u->resolved == NULL) { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
660 return NGX_ERROR; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
661 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
662 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
663 if (url.addrs) { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
664 u->resolved->sockaddr = url.addrs[0].sockaddr; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
665 u->resolved->socklen = url.addrs[0].socklen; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
666 u->resolved->name = url.addrs[0].name; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
667 u->resolved->naddrs = 1; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
668 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
669 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
670 u->resolved->host = url.host; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
671 u->resolved->port = url.port; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
672 u->resolved->no_port = url.no_port; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
673 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
674 if (url.family != AF_UNIX) { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
675 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
676 if (url.no_port) { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
677 ctx->host = url.host; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
678 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
679 } else { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
680 ctx->host.len = url.host.len + 1 + url.port_text.len; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
681 ctx->host.data = url.host.data; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
682 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
683 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
684 } else { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
685 ngx_str_set(&ctx->host, "localhost"); |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
686 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
687 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
688 return NGX_OK; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
689 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
690 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
691 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
692 static ngx_int_t |
| 7233 | 693 ngx_http_grpc_create_request(ngx_http_request_t *r) |
| 694 { | |
| 695 u_char *p, *tmp, *key_tmp, *val_tmp, *headers_frame; | |
| 696 size_t len, tmp_len, key_len, val_len, uri_len; | |
| 697 uintptr_t escape; | |
| 698 ngx_buf_t *b; | |
| 699 ngx_uint_t i, next; | |
| 700 ngx_chain_t *cl, *body; | |
| 701 ngx_list_part_t *part; | |
| 702 ngx_table_elt_t *header; | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
703 ngx_http_grpc_ctx_t *ctx; |
| 7233 | 704 ngx_http_upstream_t *u; |
| 705 ngx_http_grpc_frame_t *f; | |
| 706 ngx_http_script_code_pt code; | |
| 707 ngx_http_grpc_loc_conf_t *glcf; | |
| 708 ngx_http_script_engine_t e, le; | |
| 709 ngx_http_script_len_code_pt lcode; | |
| 710 | |
| 711 u = r->upstream; | |
| 712 | |
| 713 glcf = ngx_http_get_module_loc_conf(r, ngx_http_grpc_module); | |
| 714 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
715 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
716 |
| 7233 | 717 len = sizeof(ngx_http_grpc_connection_start) - 1 |
| 718 + sizeof(ngx_http_grpc_frame_t); /* headers frame */ | |
| 719 | |
| 720 /* :method header */ | |
| 721 | |
| 722 if (r->method == NGX_HTTP_GET || r->method == NGX_HTTP_POST) { | |
| 723 len += 1; | |
| 724 tmp_len = 0; | |
| 725 | |
| 726 } else { | |
| 727 len += 1 + NGX_HTTP_V2_INT_OCTETS + r->method_name.len; | |
| 728 tmp_len = r->method_name.len; | |
| 729 } | |
| 730 | |
| 731 /* :scheme header */ | |
| 732 | |
| 733 len += 1; | |
| 734 | |
| 735 /* :path header */ | |
| 736 | |
| 737 if (r->valid_unparsed_uri) { | |
| 738 escape = 0; | |
| 739 uri_len = r->unparsed_uri.len; | |
| 740 | |
| 741 } else { | |
| 742 escape = 2 * ngx_escape_uri(NULL, r->uri.data, r->uri.len, | |
| 743 NGX_ESCAPE_URI); | |
| 744 uri_len = r->uri.len + escape + sizeof("?") - 1 + r->args.len; | |
| 745 } | |
| 746 | |
| 747 len += 1 + NGX_HTTP_V2_INT_OCTETS + uri_len; | |
| 748 | |
| 749 if (tmp_len < uri_len) { | |
| 750 tmp_len = uri_len; | |
| 751 } | |
| 752 | |
| 753 /* :authority header */ | |
| 754 | |
| 755 if (!glcf->host_set) { | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
756 len += 1 + NGX_HTTP_V2_INT_OCTETS + ctx->host.len; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
757 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
758 if (tmp_len < ctx->host.len) { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
759 tmp_len = ctx->host.len; |
| 7233 | 760 } |
| 761 } | |
| 762 | |
| 763 /* other headers */ | |
| 764 | |
| 765 ngx_http_script_flush_no_cacheable_variables(r, glcf->headers.flushes); | |
| 766 ngx_memzero(&le, sizeof(ngx_http_script_engine_t)); | |
| 767 | |
| 768 le.ip = glcf->headers.lengths->elts; | |
| 769 le.request = r; | |
| 770 le.flushed = 1; | |
| 771 | |
| 772 while (*(uintptr_t *) le.ip) { | |
| 773 | |
| 774 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 775 key_len = lcode(&le); | |
| 776 | |
| 777 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { | |
| 778 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 779 } | |
| 780 le.ip += sizeof(uintptr_t); | |
| 781 | |
| 782 if (val_len == 0) { | |
| 783 continue; | |
| 784 } | |
| 785 | |
| 786 len += 1 + NGX_HTTP_V2_INT_OCTETS + key_len | |
| 787 + NGX_HTTP_V2_INT_OCTETS + val_len; | |
| 788 | |
| 789 if (tmp_len < key_len) { | |
| 790 tmp_len = key_len; | |
| 791 } | |
| 792 | |
| 793 if (tmp_len < val_len) { | |
| 794 tmp_len = val_len; | |
| 795 } | |
| 796 } | |
| 797 | |
| 798 if (glcf->upstream.pass_request_headers) { | |
| 799 part = &r->headers_in.headers.part; | |
| 800 header = part->elts; | |
| 801 | |
| 802 for (i = 0; /* void */; i++) { | |
| 803 | |
| 804 if (i >= part->nelts) { | |
| 805 if (part->next == NULL) { | |
| 806 break; | |
| 807 } | |
| 808 | |
| 809 part = part->next; | |
| 810 header = part->elts; | |
| 811 i = 0; | |
| 812 } | |
| 813 | |
| 814 if (ngx_hash_find(&glcf->headers.hash, header[i].hash, | |
| 815 header[i].lowcase_key, header[i].key.len)) | |
| 816 { | |
| 817 continue; | |
| 818 } | |
| 819 | |
| 820 len += 1 + NGX_HTTP_V2_INT_OCTETS + header[i].key.len | |
| 821 + NGX_HTTP_V2_INT_OCTETS + header[i].value.len; | |
| 822 | |
| 823 if (tmp_len < header[i].key.len) { | |
| 824 tmp_len = header[i].key.len; | |
| 825 } | |
| 826 | |
| 827 if (tmp_len < header[i].value.len) { | |
| 828 tmp_len = header[i].value.len; | |
| 829 } | |
| 830 } | |
| 831 } | |
| 832 | |
| 833 /* continuation frames */ | |
| 834 | |
| 835 len += sizeof(ngx_http_grpc_frame_t) | |
| 836 * (len / NGX_HTTP_V2_DEFAULT_FRAME_SIZE); | |
| 837 | |
| 838 | |
| 839 b = ngx_create_temp_buf(r->pool, len); | |
| 840 if (b == NULL) { | |
| 841 return NGX_ERROR; | |
| 842 } | |
| 843 | |
| 844 cl = ngx_alloc_chain_link(r->pool); | |
| 845 if (cl == NULL) { | |
| 846 return NGX_ERROR; | |
| 847 } | |
| 848 | |
| 849 cl->buf = b; | |
| 850 cl->next = NULL; | |
| 851 | |
| 852 tmp = ngx_palloc(r->pool, tmp_len * 3); | |
| 853 if (tmp == NULL) { | |
| 854 return NGX_ERROR; | |
| 855 } | |
| 856 | |
| 857 key_tmp = tmp + tmp_len; | |
| 858 val_tmp = tmp + 2 * tmp_len; | |
| 859 | |
| 860 /* connection preface */ | |
| 861 | |
| 862 b->last = ngx_copy(b->last, ngx_http_grpc_connection_start, | |
| 863 sizeof(ngx_http_grpc_connection_start) - 1); | |
| 864 | |
| 865 /* headers frame */ | |
| 866 | |
| 867 headers_frame = b->last; | |
| 868 | |
| 869 f = (ngx_http_grpc_frame_t *) b->last; | |
| 870 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 871 | |
| 872 f->length_0 = 0; | |
| 873 f->length_1 = 0; | |
| 874 f->length_2 = 0; | |
| 875 f->type = NGX_HTTP_V2_HEADERS_FRAME; | |
| 876 f->flags = 0; | |
| 877 f->stream_id_0 = 0; | |
| 878 f->stream_id_1 = 0; | |
| 879 f->stream_id_2 = 0; | |
| 880 f->stream_id_3 = 1; | |
| 881 | |
| 882 if (r->method == NGX_HTTP_GET) { | |
| 883 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_METHOD_GET_INDEX); | |
| 884 | |
| 885 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 886 "grpc header: \":method: GET\""); | |
| 887 | |
| 888 } else if (r->method == NGX_HTTP_POST) { | |
| 889 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_METHOD_POST_INDEX); | |
| 890 | |
| 891 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 892 "grpc header: \":method: POST\""); | |
| 893 | |
| 894 } else { | |
| 895 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_METHOD_INDEX); | |
| 896 b->last = ngx_http_v2_write_value(b->last, r->method_name.data, | |
| 897 r->method_name.len, tmp); | |
| 898 | |
| 899 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 900 "grpc header: \":method: %V\"", &r->method_name); | |
| 901 } | |
| 902 | |
| 903 #if (NGX_HTTP_SSL) | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
904 if (u->ssl) { |
| 7233 | 905 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_SCHEME_HTTPS_INDEX); |
| 906 | |
| 907 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 908 "grpc header: \":scheme: https\""); | |
| 909 } else | |
| 910 #endif | |
| 911 { | |
| 912 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_SCHEME_HTTP_INDEX); | |
| 913 | |
| 914 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 915 "grpc header: \":scheme: http\""); | |
| 916 } | |
| 917 | |
| 918 if (r->valid_unparsed_uri) { | |
| 919 | |
| 920 if (r->unparsed_uri.len == 1 && r->unparsed_uri.data[0] == '/') { | |
| 921 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_PATH_ROOT_INDEX); | |
| 922 | |
| 923 } else { | |
| 924 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
| 925 b->last = ngx_http_v2_write_value(b->last, r->unparsed_uri.data, | |
| 926 r->unparsed_uri.len, tmp); | |
| 927 } | |
| 928 | |
| 929 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 930 "grpc header: \":path: %V\"", &r->unparsed_uri); | |
| 931 | |
| 932 } else if (escape || r->args.len > 0) { | |
| 933 p = val_tmp; | |
| 934 | |
| 935 if (escape) { | |
| 936 p = (u_char *) ngx_escape_uri(p, r->uri.data, r->uri.len, | |
| 937 NGX_ESCAPE_URI); | |
| 938 | |
| 939 } else { | |
| 940 p = ngx_copy(p, r->uri.data, r->uri.len); | |
| 941 } | |
| 942 | |
| 943 if (r->args.len > 0) { | |
| 944 *p++ = '?'; | |
| 945 p = ngx_copy(p, r->args.data, r->args.len); | |
| 946 } | |
| 947 | |
| 948 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
| 949 b->last = ngx_http_v2_write_value(b->last, val_tmp, p - val_tmp, tmp); | |
| 950 | |
| 951 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 952 "grpc header: \":path: %*s\"", p - val_tmp, val_tmp); | |
| 953 | |
| 954 } else { | |
| 955 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
| 956 b->last = ngx_http_v2_write_value(b->last, r->uri.data, | |
| 957 r->uri.len, tmp); | |
| 958 | |
| 959 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 960 "grpc header: \":path: %V\"", &r->uri); | |
| 961 } | |
| 962 | |
| 963 if (!glcf->host_set) { | |
| 964 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_AUTHORITY_INDEX); | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
965 b->last = ngx_http_v2_write_value(b->last, ctx->host.data, |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
966 ctx->host.len, tmp); |
| 7233 | 967 |
| 968 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
969 "grpc header: \":authority: %V\"", &ctx->host); |
| 7233 | 970 } |
| 971 | |
| 972 ngx_memzero(&e, sizeof(ngx_http_script_engine_t)); | |
| 973 | |
| 974 e.ip = glcf->headers.values->elts; | |
| 975 e.request = r; | |
| 976 e.flushed = 1; | |
| 977 | |
| 978 le.ip = glcf->headers.lengths->elts; | |
| 979 | |
| 980 while (*(uintptr_t *) le.ip) { | |
| 981 | |
| 982 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 983 key_len = lcode(&le); | |
| 984 | |
| 985 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { | |
| 986 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 987 } | |
| 988 le.ip += sizeof(uintptr_t); | |
| 989 | |
| 990 if (val_len == 0) { | |
| 991 e.skip = 1; | |
| 992 | |
| 993 while (*(uintptr_t *) e.ip) { | |
| 994 code = *(ngx_http_script_code_pt *) e.ip; | |
| 995 code((ngx_http_script_engine_t *) &e); | |
| 996 } | |
| 997 e.ip += sizeof(uintptr_t); | |
| 998 | |
| 999 e.skip = 0; | |
| 1000 | |
| 1001 continue; | |
| 1002 } | |
| 1003 | |
| 1004 *b->last++ = 0; | |
| 1005 | |
| 1006 e.pos = key_tmp; | |
| 1007 | |
| 1008 code = *(ngx_http_script_code_pt *) e.ip; | |
| 1009 code((ngx_http_script_engine_t *) &e); | |
| 1010 | |
| 1011 b->last = ngx_http_v2_write_name(b->last, key_tmp, key_len, tmp); | |
| 1012 | |
| 1013 e.pos = val_tmp; | |
| 1014 | |
| 1015 while (*(uintptr_t *) e.ip) { | |
| 1016 code = *(ngx_http_script_code_pt *) e.ip; | |
| 1017 code((ngx_http_script_engine_t *) &e); | |
| 1018 } | |
| 1019 e.ip += sizeof(uintptr_t); | |
| 1020 | |
| 1021 b->last = ngx_http_v2_write_value(b->last, val_tmp, val_len, tmp); | |
| 1022 | |
| 1023 #if (NGX_DEBUG) | |
| 1024 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
| 1025 ngx_strlow(key_tmp, key_tmp, key_len); | |
| 1026 | |
| 1027 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1028 "grpc header: \"%*s: %*s\"", | |
| 1029 key_len, key_tmp, val_len, val_tmp); | |
| 1030 } | |
| 1031 #endif | |
| 1032 } | |
| 1033 | |
| 1034 if (glcf->upstream.pass_request_headers) { | |
| 1035 part = &r->headers_in.headers.part; | |
| 1036 header = part->elts; | |
| 1037 | |
| 1038 for (i = 0; /* void */; i++) { | |
| 1039 | |
| 1040 if (i >= part->nelts) { | |
| 1041 if (part->next == NULL) { | |
| 1042 break; | |
| 1043 } | |
| 1044 | |
| 1045 part = part->next; | |
| 1046 header = part->elts; | |
| 1047 i = 0; | |
| 1048 } | |
| 1049 | |
| 1050 if (ngx_hash_find(&glcf->headers.hash, header[i].hash, | |
| 1051 header[i].lowcase_key, header[i].key.len)) | |
| 1052 { | |
| 1053 continue; | |
| 1054 } | |
| 1055 | |
| 1056 *b->last++ = 0; | |
| 1057 | |
| 1058 b->last = ngx_http_v2_write_name(b->last, header[i].key.data, | |
| 1059 header[i].key.len, tmp); | |
| 1060 | |
| 1061 b->last = ngx_http_v2_write_value(b->last, header[i].value.data, | |
| 1062 header[i].value.len, tmp); | |
| 1063 | |
| 1064 #if (NGX_DEBUG) | |
| 1065 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
| 1066 ngx_strlow(tmp, header[i].key.data, header[i].key.len); | |
| 1067 | |
| 1068 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1069 "grpc header: \"%*s: %V\"", | |
| 1070 header[i].key.len, tmp, &header[i].value); | |
| 1071 } | |
| 1072 #endif | |
| 1073 } | |
| 1074 } | |
| 1075 | |
| 1076 /* update headers frame length */ | |
| 1077 | |
| 1078 len = b->last - headers_frame - sizeof(ngx_http_grpc_frame_t); | |
| 1079 | |
| 1080 if (len > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
| 1081 len = NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
| 1082 next = 1; | |
| 1083 | |
| 1084 } else { | |
| 1085 next = 0; | |
| 1086 } | |
| 1087 | |
| 1088 f = (ngx_http_grpc_frame_t *) headers_frame; | |
| 1089 | |
| 1090 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
| 1091 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
| 1092 f->length_2 = (u_char) (len & 0xff); | |
| 1093 | |
| 1094 /* create additional continuation frames */ | |
| 1095 | |
| 1096 p = headers_frame; | |
| 1097 | |
| 1098 while (next) { | |
| 1099 p += sizeof(ngx_http_grpc_frame_t) + NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
| 1100 len = b->last - p; | |
| 1101 | |
| 1102 ngx_memmove(p + sizeof(ngx_http_grpc_frame_t), p, len); | |
| 1103 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 1104 | |
| 1105 if (len > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
| 1106 len = NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
| 1107 next = 1; | |
| 1108 | |
| 1109 } else { | |
| 1110 next = 0; | |
| 1111 } | |
| 1112 | |
| 1113 f = (ngx_http_grpc_frame_t *) p; | |
| 1114 | |
| 1115 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
| 1116 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
| 1117 f->length_2 = (u_char) (len & 0xff); | |
| 1118 f->type = NGX_HTTP_V2_CONTINUATION_FRAME; | |
| 1119 f->flags = 0; | |
| 1120 f->stream_id_0 = 0; | |
| 1121 f->stream_id_1 = 0; | |
| 1122 f->stream_id_2 = 0; | |
| 1123 f->stream_id_3 = 1; | |
| 1124 } | |
| 1125 | |
| 1126 f->flags |= NGX_HTTP_V2_END_HEADERS_FLAG; | |
| 1127 | |
| 1128 #if (NGX_DEBUG) | |
| 1129 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
| 1130 u_char buf[512]; | |
| 1131 size_t n, m; | |
| 1132 | |
| 1133 n = ngx_min(b->last - b->pos, 256); | |
| 1134 m = ngx_hex_dump(buf, b->pos, n) - buf; | |
| 1135 | |
| 1136 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1137 "grpc header: %*s%s, len: %uz", | |
| 1138 m, buf, b->last - b->pos > 256 ? "..." : "", | |
| 1139 b->last - b->pos); | |
| 1140 } | |
| 1141 #endif | |
| 1142 | |
| 1143 if (r->request_body_no_buffering) { | |
| 1144 | |
| 1145 u->request_bufs = cl; | |
| 1146 | |
| 1147 } else { | |
| 1148 | |
| 1149 body = u->request_bufs; | |
| 1150 u->request_bufs = cl; | |
| 1151 | |
| 1152 if (body == NULL) { | |
| 1153 f = (ngx_http_grpc_frame_t *) headers_frame; | |
| 1154 f->flags |= NGX_HTTP_V2_END_STREAM_FLAG; | |
| 1155 } | |
| 1156 | |
| 1157 while (body) { | |
| 1158 b = ngx_alloc_buf(r->pool); | |
| 1159 if (b == NULL) { | |
| 1160 return NGX_ERROR; | |
| 1161 } | |
| 1162 | |
| 1163 ngx_memcpy(b, body->buf, sizeof(ngx_buf_t)); | |
| 1164 | |
| 1165 cl->next = ngx_alloc_chain_link(r->pool); | |
| 1166 if (cl->next == NULL) { | |
| 1167 return NGX_ERROR; | |
| 1168 } | |
| 1169 | |
| 1170 cl = cl->next; | |
| 1171 cl->buf = b; | |
| 1172 | |
| 1173 body = body->next; | |
| 1174 } | |
| 1175 | |
| 1176 b->last_buf = 1; | |
| 1177 } | |
| 1178 | |
| 1179 u->output.output_filter = ngx_http_grpc_body_output_filter; | |
| 1180 u->output.filter_ctx = r; | |
| 1181 | |
| 1182 b->flush = 1; | |
| 1183 cl->next = NULL; | |
| 1184 | |
| 1185 return NGX_OK; | |
| 1186 } | |
| 1187 | |
| 1188 | |
| 1189 static ngx_int_t | |
| 1190 ngx_http_grpc_reinit_request(ngx_http_request_t *r) | |
| 1191 { | |
| 1192 ngx_http_grpc_ctx_t *ctx; | |
| 1193 | |
| 1194 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); | |
| 1195 | |
| 1196 if (ctx == NULL) { | |
| 1197 return NGX_OK; | |
| 1198 } | |
| 1199 | |
| 1200 ctx->state = 0; | |
| 1201 ctx->header_sent = 0; | |
| 1202 ctx->output_closed = 0; | |
|
7350
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1203 ctx->output_blocked = 0; |
| 7233 | 1204 ctx->parsing_headers = 0; |
| 1205 ctx->end_stream = 0; | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1206 ctx->done = 0; |
| 7233 | 1207 ctx->status = 0; |
| 1208 ctx->connection = NULL; | |
| 1209 | |
| 1210 return NGX_OK; | |
| 1211 } | |
| 1212 | |
| 1213 | |
| 1214 static ngx_int_t | |
| 1215 ngx_http_grpc_body_output_filter(void *data, ngx_chain_t *in) | |
| 1216 { | |
| 1217 ngx_http_request_t *r = data; | |
| 1218 | |
| 1219 off_t file_pos; | |
| 1220 u_char *p, *pos, *start; | |
| 1221 size_t len, limit; | |
| 1222 ngx_buf_t *b; | |
| 1223 ngx_int_t rc; | |
| 1224 ngx_uint_t next, last; | |
| 1225 ngx_chain_t *cl, *out, **ll; | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1226 ngx_http_upstream_t *u; |
| 7233 | 1227 ngx_http_grpc_ctx_t *ctx; |
| 1228 ngx_http_grpc_frame_t *f; | |
| 1229 | |
| 1230 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1231 "grpc output filter"); | |
| 1232 | |
| 1233 ctx = ngx_http_grpc_get_ctx(r); | |
| 1234 | |
| 1235 if (ctx == NULL) { | |
| 1236 return NGX_ERROR; | |
| 1237 } | |
| 1238 | |
| 1239 if (in) { | |
| 1240 if (ngx_chain_add_copy(r->pool, &ctx->in, in) != NGX_OK) { | |
| 1241 return NGX_ERROR; | |
| 1242 } | |
| 1243 } | |
| 1244 | |
| 1245 out = NULL; | |
| 1246 ll = &out; | |
| 1247 | |
| 1248 if (!ctx->header_sent) { | |
| 1249 /* first buffer contains headers */ | |
| 1250 | |
| 1251 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1252 "grpc output header"); | |
| 1253 | |
| 1254 ctx->header_sent = 1; | |
| 1255 | |
| 1256 if (ctx->id != 1) { | |
| 1257 /* | |
| 1258 * keepalive connection: skip connection preface, | |
| 1259 * update stream identifiers | |
| 1260 */ | |
| 1261 | |
| 1262 b = ctx->in->buf; | |
| 1263 b->pos += sizeof(ngx_http_grpc_connection_start) - 1; | |
| 1264 | |
| 1265 p = b->pos; | |
| 1266 | |
| 1267 while (p < b->last) { | |
| 1268 f = (ngx_http_grpc_frame_t *) p; | |
| 1269 p += sizeof(ngx_http_grpc_frame_t); | |
| 1270 | |
| 1271 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 1272 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 1273 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 1274 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 1275 | |
| 1276 p += (f->length_0 << 16) + (f->length_1 << 8) + f->length_2; | |
| 1277 } | |
| 1278 } | |
| 1279 | |
| 1280 if (ctx->in->buf->last_buf) { | |
| 1281 ctx->output_closed = 1; | |
| 1282 } | |
| 1283 | |
| 1284 *ll = ctx->in; | |
| 1285 ll = &ctx->in->next; | |
| 1286 | |
| 1287 ctx->in = ctx->in->next; | |
| 1288 } | |
| 1289 | |
| 1290 if (ctx->out) { | |
| 1291 /* queued control frames */ | |
| 1292 | |
| 1293 *ll = ctx->out; | |
| 1294 | |
| 1295 for (cl = ctx->out, ll = &cl->next; cl; cl = cl->next) { | |
| 1296 ll = &cl->next; | |
| 1297 } | |
| 1298 | |
| 1299 ctx->out = NULL; | |
| 1300 } | |
| 1301 | |
| 1302 f = NULL; | |
| 1303 last = 0; | |
| 1304 | |
| 1305 limit = ngx_max(0, ctx->send_window); | |
| 1306 | |
| 1307 if (limit > ctx->connection->send_window) { | |
| 1308 limit = ctx->connection->send_window; | |
| 1309 } | |
| 1310 | |
| 1311 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1312 "grpc output limit: %uz w:%z:%uz", | |
| 1313 limit, ctx->send_window, ctx->connection->send_window); | |
| 1314 | |
| 1315 #if (NGX_SUPPRESS_WARN) | |
| 1316 file_pos = 0; | |
| 1317 pos = NULL; | |
| 1318 cl = NULL; | |
| 1319 #endif | |
| 1320 | |
| 1321 in = ctx->in; | |
| 1322 | |
| 1323 while (in && limit > 0) { | |
| 1324 | |
| 1325 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, r->connection->log, 0, | |
| 1326 "grpc output in l:%d f:%d %p, pos %p, size: %z " | |
| 1327 "file: %O, size: %O", | |
| 1328 in->buf->last_buf, | |
| 1329 in->buf->in_file, | |
| 1330 in->buf->start, in->buf->pos, | |
| 1331 in->buf->last - in->buf->pos, | |
| 1332 in->buf->file_pos, | |
| 1333 in->buf->file_last - in->buf->file_pos); | |
| 1334 | |
| 1335 if (ngx_buf_special(in->buf)) { | |
| 1336 goto next; | |
| 1337 } | |
| 1338 | |
| 1339 if (in->buf->in_file) { | |
| 1340 file_pos = in->buf->file_pos; | |
| 1341 | |
| 1342 } else { | |
| 1343 pos = in->buf->pos; | |
| 1344 } | |
| 1345 | |
| 1346 next = 0; | |
| 1347 | |
| 1348 do { | |
| 1349 | |
| 1350 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 1351 if (cl == NULL) { | |
| 1352 return NGX_ERROR; | |
| 1353 } | |
| 1354 | |
| 1355 b = cl->buf; | |
| 1356 | |
| 1357 f = (ngx_http_grpc_frame_t *) b->last; | |
| 1358 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 1359 | |
| 1360 *ll = cl; | |
| 1361 ll = &cl->next; | |
| 1362 | |
| 1363 cl = ngx_chain_get_free_buf(r->pool, &ctx->free); | |
| 1364 if (cl == NULL) { | |
| 1365 return NGX_ERROR; | |
| 1366 } | |
| 1367 | |
| 1368 b = cl->buf; | |
| 1369 start = b->start; | |
| 1370 | |
| 1371 ngx_memcpy(b, in->buf, sizeof(ngx_buf_t)); | |
| 1372 | |
| 1373 /* | |
| 1374 * restore b->start to preserve memory allocated in the buffer, | |
| 1375 * to reuse it later for headers and control frames | |
| 1376 */ | |
| 1377 | |
| 1378 b->start = start; | |
| 1379 | |
| 1380 if (in->buf->in_file) { | |
| 1381 b->file_pos = file_pos; | |
| 1382 file_pos += ngx_min(NGX_HTTP_V2_DEFAULT_FRAME_SIZE, limit); | |
| 1383 | |
| 1384 if (file_pos >= in->buf->file_last) { | |
| 1385 file_pos = in->buf->file_last; | |
| 1386 next = 1; | |
| 1387 } | |
| 1388 | |
| 1389 b->file_last = file_pos; | |
| 1390 len = (ngx_uint_t) (file_pos - b->file_pos); | |
| 1391 | |
| 1392 } else { | |
| 1393 b->pos = pos; | |
| 1394 pos += ngx_min(NGX_HTTP_V2_DEFAULT_FRAME_SIZE, limit); | |
| 1395 | |
| 1396 if (pos >= in->buf->last) { | |
| 1397 pos = in->buf->last; | |
| 1398 next = 1; | |
| 1399 } | |
| 1400 | |
| 1401 b->last = pos; | |
| 1402 len = (ngx_uint_t) (pos - b->pos); | |
| 1403 } | |
| 1404 | |
| 1405 b->tag = (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter; | |
| 1406 b->shadow = in->buf; | |
| 1407 b->last_shadow = next; | |
| 1408 | |
| 1409 b->last_buf = 0; | |
| 1410 b->last_in_chain = 0; | |
| 1411 | |
| 1412 *ll = cl; | |
| 1413 ll = &cl->next; | |
| 1414 | |
| 1415 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
| 1416 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
| 1417 f->length_2 = (u_char) (len & 0xff); | |
| 1418 f->type = NGX_HTTP_V2_DATA_FRAME; | |
| 1419 f->flags = 0; | |
| 1420 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 1421 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 1422 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 1423 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 1424 | |
| 1425 limit -= len; | |
| 1426 ctx->send_window -= len; | |
| 1427 ctx->connection->send_window -= len; | |
| 1428 | |
| 1429 } while (!next && limit > 0); | |
| 1430 | |
| 1431 if (!next) { | |
| 1432 /* | |
| 1433 * if the buffer wasn't fully sent due to flow control limits, | |
| 1434 * preserve position for future use | |
| 1435 */ | |
| 1436 | |
| 1437 if (in->buf->in_file) { | |
| 1438 in->buf->file_pos = file_pos; | |
| 1439 | |
| 1440 } else { | |
| 1441 in->buf->pos = pos; | |
| 1442 } | |
| 1443 | |
| 1444 break; | |
| 1445 } | |
| 1446 | |
| 1447 next: | |
| 1448 | |
| 1449 if (in->buf->last_buf) { | |
| 1450 last = 1; | |
| 1451 } | |
| 1452 | |
| 1453 in = in->next; | |
| 1454 } | |
| 1455 | |
| 1456 ctx->in = in; | |
| 1457 | |
| 1458 if (last) { | |
| 1459 | |
| 1460 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1461 "grpc output last"); | |
| 1462 | |
| 1463 ctx->output_closed = 1; | |
| 1464 | |
| 1465 if (f) { | |
| 1466 f->flags |= NGX_HTTP_V2_END_STREAM_FLAG; | |
| 1467 | |
| 1468 } else { | |
| 1469 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 1470 if (cl == NULL) { | |
| 1471 return NGX_ERROR; | |
| 1472 } | |
| 1473 | |
| 1474 b = cl->buf; | |
| 1475 | |
| 1476 f = (ngx_http_grpc_frame_t *) b->last; | |
| 1477 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 1478 | |
| 1479 f->length_0 = 0; | |
| 1480 f->length_1 = 0; | |
| 1481 f->length_2 = 0; | |
| 1482 f->type = NGX_HTTP_V2_DATA_FRAME; | |
| 1483 f->flags = NGX_HTTP_V2_END_STREAM_FLAG; | |
| 1484 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 1485 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 1486 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 1487 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 1488 | |
| 1489 *ll = cl; | |
| 1490 ll = &cl->next; | |
| 1491 } | |
| 1492 | |
| 1493 cl->buf->last_buf = 1; | |
| 1494 } | |
| 1495 | |
| 1496 *ll = NULL; | |
| 1497 | |
| 1498 #if (NGX_DEBUG) | |
| 1499 | |
| 1500 for (cl = out; cl; cl = cl->next) { | |
| 1501 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, r->connection->log, 0, | |
| 1502 "grpc output out l:%d f:%d %p, pos %p, size: %z " | |
| 1503 "file: %O, size: %O", | |
| 1504 cl->buf->last_buf, | |
| 1505 cl->buf->in_file, | |
| 1506 cl->buf->start, cl->buf->pos, | |
| 1507 cl->buf->last - cl->buf->pos, | |
| 1508 cl->buf->file_pos, | |
| 1509 cl->buf->file_last - cl->buf->file_pos); | |
| 1510 } | |
| 1511 | |
| 1512 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1513 "grpc output limit: %uz w:%z:%uz", | |
| 1514 limit, ctx->send_window, ctx->connection->send_window); | |
| 1515 | |
| 1516 #endif | |
| 1517 | |
| 1518 rc = ngx_chain_writer(&r->upstream->writer, out); | |
| 1519 | |
| 1520 ngx_chain_update_chains(r->pool, &ctx->free, &ctx->busy, &out, | |
| 1521 (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter); | |
| 1522 | |
| 1523 for (cl = ctx->free; cl; cl = cl->next) { | |
| 1524 | |
| 1525 /* mark original buffers as sent */ | |
| 1526 | |
| 1527 if (cl->buf->shadow) { | |
| 1528 if (cl->buf->last_shadow) { | |
| 1529 b = cl->buf->shadow; | |
| 1530 b->pos = b->last; | |
| 1531 } | |
| 1532 | |
| 1533 cl->buf->shadow = NULL; | |
| 1534 } | |
| 1535 } | |
| 1536 | |
| 1537 if (rc == NGX_OK && ctx->in) { | |
| 1538 rc = NGX_AGAIN; | |
| 1539 } | |
| 1540 | |
|
7350
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1541 if (rc == NGX_AGAIN) { |
|
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1542 ctx->output_blocked = 1; |
|
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1543 |
|
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1544 } else { |
|
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1545 ctx->output_blocked = 0; |
|
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1546 } |
|
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1547 |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1548 if (ctx->done) { |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1549 |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1550 /* |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1551 * We have already got the response and were sending some additional |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1552 * control frames. Even if there is still something unsent, stop |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1553 * here anyway. |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1554 */ |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1555 |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1556 u = r->upstream; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1557 u->length = 0; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1558 |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1559 if (ctx->in == NULL |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1560 && ctx->out == NULL |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1561 && ctx->output_closed |
|
7350
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1562 && !ctx->output_blocked |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1563 && ctx->state == ngx_http_grpc_st_start) |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1564 { |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1565 u->keepalive = 1; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1566 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1567 |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1568 ngx_post_event(u->peer.connection->read, &ngx_posted_events); |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1569 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1570 |
| 7233 | 1571 return rc; |
| 1572 } | |
| 1573 | |
| 1574 | |
| 1575 static ngx_int_t | |
| 1576 ngx_http_grpc_process_header(ngx_http_request_t *r) | |
| 1577 { | |
| 1578 ngx_str_t *status_line; | |
| 1579 ngx_int_t rc, status; | |
| 1580 ngx_buf_t *b; | |
| 1581 ngx_table_elt_t *h; | |
| 1582 ngx_http_upstream_t *u; | |
| 1583 ngx_http_grpc_ctx_t *ctx; | |
| 1584 ngx_http_upstream_header_t *hh; | |
| 1585 ngx_http_upstream_main_conf_t *umcf; | |
| 1586 | |
| 1587 u = r->upstream; | |
| 1588 b = &u->buffer; | |
| 1589 | |
| 1590 #if (NGX_DEBUG) | |
| 1591 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
| 1592 u_char buf[512]; | |
| 1593 size_t n, m; | |
| 1594 | |
| 1595 n = ngx_min(b->last - b->pos, 256); | |
| 1596 m = ngx_hex_dump(buf, b->pos, n) - buf; | |
| 1597 | |
| 1598 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1599 "grpc response: %*s%s, len: %uz", | |
| 1600 m, buf, b->last - b->pos > 256 ? "..." : "", | |
| 1601 b->last - b->pos); | |
| 1602 } | |
| 1603 #endif | |
| 1604 | |
| 1605 ctx = ngx_http_grpc_get_ctx(r); | |
| 1606 | |
| 1607 if (ctx == NULL) { | |
| 1608 return NGX_ERROR; | |
| 1609 } | |
| 1610 | |
| 1611 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module); | |
| 1612 | |
| 1613 for ( ;; ) { | |
| 1614 | |
| 1615 if (ctx->state < ngx_http_grpc_st_payload) { | |
| 1616 | |
| 1617 rc = ngx_http_grpc_parse_frame(r, ctx, b); | |
| 1618 | |
| 1619 if (rc == NGX_AGAIN) { | |
| 1620 | |
| 1621 /* | |
| 1622 * there can be a lot of window update frames, | |
| 1623 * so we reset buffer if it is empty and we haven't | |
| 1624 * started parsing headers yet | |
| 1625 */ | |
| 1626 | |
| 1627 if (!ctx->parsing_headers) { | |
| 1628 b->pos = b->start; | |
| 1629 b->last = b->pos; | |
| 1630 } | |
| 1631 | |
| 1632 return NGX_AGAIN; | |
| 1633 } | |
| 1634 | |
| 1635 if (rc == NGX_ERROR) { | |
| 1636 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1637 } | |
| 1638 | |
| 1639 /* | |
| 1640 * RFC 7540 says that implementations MUST discard frames | |
| 1641 * that have unknown or unsupported types. However, extension | |
| 1642 * frames that appear in the middle of a header block are | |
| 1643 * not permitted. Also, for obvious reasons CONTINUATION frames | |
| 1644 * cannot appear before headers, and DATA frames are not expected | |
| 1645 * to appear before all headers are parsed. | |
| 1646 */ | |
| 1647 | |
| 1648 if (ctx->type == NGX_HTTP_V2_DATA_FRAME | |
| 1649 || (ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME | |
| 1650 && !ctx->parsing_headers) | |
| 1651 || (ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME | |
| 1652 && ctx->parsing_headers)) | |
| 1653 { | |
| 1654 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1655 "upstream sent unexpected http2 frame: %d", | |
| 1656 ctx->type); | |
| 1657 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1658 } | |
| 1659 | |
| 1660 if (ctx->stream_id && ctx->stream_id != ctx->id) { | |
| 1661 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1662 "upstream sent frame for unknown stream %ui", | |
| 1663 ctx->stream_id); | |
| 1664 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1665 } | |
| 1666 } | |
| 1667 | |
| 1668 /* frame payload */ | |
| 1669 | |
| 1670 if (ctx->type == NGX_HTTP_V2_RST_STREAM_FRAME) { | |
| 1671 | |
| 1672 rc = ngx_http_grpc_parse_rst_stream(r, ctx, b); | |
| 1673 | |
| 1674 if (rc == NGX_AGAIN) { | |
| 1675 return NGX_AGAIN; | |
| 1676 } | |
| 1677 | |
| 1678 if (rc == NGX_ERROR) { | |
| 1679 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1680 } | |
| 1681 | |
| 1682 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1683 "upstream rejected request with error %ui", | |
| 1684 ctx->error); | |
| 1685 | |
| 1686 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1687 } | |
| 1688 | |
| 1689 if (ctx->type == NGX_HTTP_V2_GOAWAY_FRAME) { | |
| 1690 | |
| 1691 rc = ngx_http_grpc_parse_goaway(r, ctx, b); | |
| 1692 | |
| 1693 if (rc == NGX_AGAIN) { | |
| 1694 return NGX_AGAIN; | |
| 1695 } | |
| 1696 | |
| 1697 if (rc == NGX_ERROR) { | |
| 1698 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1699 } | |
| 1700 | |
| 1701 /* | |
| 1702 * If stream_id is lower than one we use, our | |
| 1703 * request won't be processed and needs to be retried. | |
| 1704 * If stream_id is greater or equal to the one we use, | |
| 1705 * we can continue normally (except we can't use this | |
| 1706 * connection for additional requests). If there is | |
| 1707 * a real error, the connection will be closed. | |
| 1708 */ | |
| 1709 | |
| 1710 if (ctx->stream_id < ctx->id) { | |
| 1711 | |
| 1712 /* TODO: we can retry non-idempotent requests */ | |
| 1713 | |
| 1714 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1715 "upstream sent goaway with error %ui", | |
| 1716 ctx->error); | |
| 1717 | |
| 1718 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1719 } | |
| 1720 | |
| 1721 continue; | |
| 1722 } | |
| 1723 | |
| 1724 if (ctx->type == NGX_HTTP_V2_WINDOW_UPDATE_FRAME) { | |
| 1725 | |
| 1726 rc = ngx_http_grpc_parse_window_update(r, ctx, b); | |
| 1727 | |
| 1728 if (rc == NGX_AGAIN) { | |
| 1729 return NGX_AGAIN; | |
| 1730 } | |
| 1731 | |
| 1732 if (rc == NGX_ERROR) { | |
| 1733 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1734 } | |
| 1735 | |
| 1736 if (ctx->in) { | |
| 1737 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 1738 } | |
| 1739 | |
| 1740 continue; | |
| 1741 } | |
| 1742 | |
| 1743 if (ctx->type == NGX_HTTP_V2_SETTINGS_FRAME) { | |
| 1744 | |
| 1745 rc = ngx_http_grpc_parse_settings(r, ctx, b); | |
| 1746 | |
| 1747 if (rc == NGX_AGAIN) { | |
| 1748 return NGX_AGAIN; | |
| 1749 } | |
| 1750 | |
| 1751 if (rc == NGX_ERROR) { | |
| 1752 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1753 } | |
| 1754 | |
| 1755 if (ctx->in) { | |
| 1756 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 1757 } | |
| 1758 | |
| 1759 continue; | |
| 1760 } | |
| 1761 | |
| 1762 if (ctx->type == NGX_HTTP_V2_PING_FRAME) { | |
| 1763 | |
| 1764 rc = ngx_http_grpc_parse_ping(r, ctx, b); | |
| 1765 | |
| 1766 if (rc == NGX_AGAIN) { | |
| 1767 return NGX_AGAIN; | |
| 1768 } | |
| 1769 | |
| 1770 if (rc == NGX_ERROR) { | |
| 1771 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1772 } | |
| 1773 | |
| 1774 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 1775 continue; | |
| 1776 } | |
| 1777 | |
| 1778 if (ctx->type == NGX_HTTP_V2_PUSH_PROMISE_FRAME) { | |
| 1779 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1780 "upstream sent unexpected push promise frame"); | |
| 1781 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1782 } | |
| 1783 | |
| 1784 if (ctx->type != NGX_HTTP_V2_HEADERS_FRAME | |
| 1785 && ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME) | |
| 1786 { | |
| 1787 /* priority, unknown frames */ | |
| 1788 | |
| 1789 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 1790 ctx->rest -= b->last - b->pos; | |
| 1791 b->pos = b->last; | |
| 1792 return NGX_AGAIN; | |
| 1793 } | |
| 1794 | |
| 1795 b->pos += ctx->rest; | |
| 1796 ctx->rest = 0; | |
| 1797 ctx->state = ngx_http_grpc_st_start; | |
| 1798 | |
| 1799 continue; | |
| 1800 } | |
| 1801 | |
| 1802 /* headers */ | |
| 1803 | |
| 1804 for ( ;; ) { | |
| 1805 | |
| 1806 rc = ngx_http_grpc_parse_header(r, ctx, b); | |
| 1807 | |
| 1808 if (rc == NGX_AGAIN) { | |
| 1809 break; | |
| 1810 } | |
| 1811 | |
| 1812 if (rc == NGX_OK) { | |
| 1813 | |
| 1814 /* a header line has been parsed successfully */ | |
| 1815 | |
| 1816 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1817 "grpc header: \"%V: %V\"", | |
| 1818 &ctx->name, &ctx->value); | |
| 1819 | |
| 1820 if (ctx->name.len && ctx->name.data[0] == ':') { | |
| 1821 | |
| 1822 if (ctx->name.len != sizeof(":status") - 1 | |
| 1823 || ngx_strncmp(ctx->name.data, ":status", | |
| 1824 sizeof(":status") - 1) | |
| 1825 != 0) | |
| 1826 { | |
| 1827 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1828 "upstream sent invalid header \"%V: %V\"", | |
| 1829 &ctx->name, &ctx->value); | |
| 1830 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1831 } | |
| 1832 | |
| 1833 if (ctx->status) { | |
| 1834 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1835 "upstream sent duplicate :status header"); | |
| 1836 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1837 } | |
| 1838 | |
| 1839 status_line = &ctx->value; | |
| 1840 | |
| 1841 if (status_line->len != 3) { | |
| 1842 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1843 "upstream sent invalid :status \"%V\"", | |
| 1844 status_line); | |
| 1845 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1846 } | |
| 1847 | |
| 1848 status = ngx_atoi(status_line->data, 3); | |
| 1849 | |
| 1850 if (status == NGX_ERROR) { | |
| 1851 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1852 "upstream sent invalid :status \"%V\"", | |
| 1853 status_line); | |
| 1854 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1855 } | |
| 1856 | |
| 1857 if (status < NGX_HTTP_OK) { | |
| 1858 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1859 "upstream sent unexpected :status \"%V\"", | |
| 1860 status_line); | |
| 1861 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1862 } | |
| 1863 | |
| 1864 u->headers_in.status_n = status; | |
| 1865 | |
| 1866 if (u->state && u->state->status == 0) { | |
| 1867 u->state->status = status; | |
| 1868 } | |
| 1869 | |
| 1870 ctx->status = 1; | |
| 1871 | |
| 1872 continue; | |
| 1873 | |
| 1874 } else if (!ctx->status) { | |
| 1875 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1876 "upstream sent no :status header"); | |
| 1877 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1878 } | |
| 1879 | |
| 1880 h = ngx_list_push(&u->headers_in.headers); | |
| 1881 if (h == NULL) { | |
| 1882 return NGX_ERROR; | |
| 1883 } | |
| 1884 | |
| 1885 h->key = ctx->name; | |
| 1886 h->value = ctx->value; | |
| 1887 h->lowcase_key = h->key.data; | |
| 1888 h->hash = ngx_hash_key(h->key.data, h->key.len); | |
| 1889 | |
| 1890 hh = ngx_hash_find(&umcf->headers_in_hash, h->hash, | |
| 1891 h->lowcase_key, h->key.len); | |
| 1892 | |
| 1893 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) { | |
| 1894 return NGX_ERROR; | |
| 1895 } | |
| 1896 | |
| 1897 continue; | |
| 1898 } | |
| 1899 | |
| 1900 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { | |
| 1901 | |
| 1902 /* a whole header has been parsed successfully */ | |
| 1903 | |
| 1904 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1905 "grpc header done"); | |
| 1906 | |
|
7235
c2a0a838c40f
gRPC: special handling of "trailer only" responses.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7234
diff
changeset
|
1907 if (ctx->end_stream) { |
|
c2a0a838c40f
gRPC: special handling of "trailer only" responses.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7234
diff
changeset
|
1908 u->headers_in.content_length_n = 0; |
|
c2a0a838c40f
gRPC: special handling of "trailer only" responses.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7234
diff
changeset
|
1909 |
|
c2a0a838c40f
gRPC: special handling of "trailer only" responses.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7234
diff
changeset
|
1910 if (ctx->in == NULL |
|
c2a0a838c40f
gRPC: special handling of "trailer only" responses.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7234
diff
changeset
|
1911 && ctx->out == NULL |
|
c2a0a838c40f
gRPC: special handling of "trailer only" responses.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7234
diff
changeset
|
1912 && ctx->output_closed |
|
7350
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1913 && !ctx->output_blocked |
|
7235
c2a0a838c40f
gRPC: special handling of "trailer only" responses.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7234
diff
changeset
|
1914 && b->last == b->pos) |
|
c2a0a838c40f
gRPC: special handling of "trailer only" responses.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7234
diff
changeset
|
1915 { |
|
c2a0a838c40f
gRPC: special handling of "trailer only" responses.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7234
diff
changeset
|
1916 u->keepalive = 1; |
|
c2a0a838c40f
gRPC: special handling of "trailer only" responses.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7234
diff
changeset
|
1917 } |
| 7233 | 1918 } |
| 1919 | |
| 1920 return NGX_OK; | |
| 1921 } | |
| 1922 | |
| 1923 /* there was error while a header line parsing */ | |
| 1924 | |
| 1925 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1926 "upstream sent invalid header"); | |
| 1927 | |
| 1928 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1929 } | |
| 1930 | |
| 1931 /* rc == NGX_AGAIN */ | |
| 1932 | |
| 1933 if (ctx->rest == 0) { | |
| 1934 ctx->state = ngx_http_grpc_st_start; | |
| 1935 continue; | |
| 1936 } | |
| 1937 | |
| 1938 return NGX_AGAIN; | |
| 1939 } | |
| 1940 } | |
| 1941 | |
| 1942 | |
| 1943 static ngx_int_t | |
| 1944 ngx_http_grpc_filter_init(void *data) | |
| 1945 { | |
| 1946 ngx_http_grpc_ctx_t *ctx = data; | |
| 1947 | |
| 1948 ngx_http_request_t *r; | |
| 1949 ngx_http_upstream_t *u; | |
| 1950 | |
| 1951 r = ctx->request; | |
| 1952 u = r->upstream; | |
| 1953 | |
| 1954 u->length = 1; | |
| 1955 | |
| 1956 if (ctx->end_stream) { | |
| 1957 u->length = 0; | |
| 1958 } | |
| 1959 | |
| 1960 return NGX_OK; | |
| 1961 } | |
| 1962 | |
| 1963 | |
| 1964 static ngx_int_t | |
| 1965 ngx_http_grpc_filter(void *data, ssize_t bytes) | |
| 1966 { | |
| 1967 ngx_http_grpc_ctx_t *ctx = data; | |
| 1968 | |
| 1969 ngx_int_t rc; | |
| 1970 ngx_buf_t *b, *buf; | |
| 1971 ngx_chain_t *cl, **ll; | |
| 1972 ngx_table_elt_t *h; | |
| 1973 ngx_http_request_t *r; | |
| 1974 ngx_http_upstream_t *u; | |
| 1975 | |
| 1976 r = ctx->request; | |
| 1977 u = r->upstream; | |
| 1978 b = &u->buffer; | |
| 1979 | |
| 1980 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1981 "grpc filter bytes:%z", bytes); | |
| 1982 | |
| 1983 b->pos = b->last; | |
| 1984 b->last += bytes; | |
| 1985 | |
| 1986 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { | |
| 1987 ll = &cl->next; | |
| 1988 } | |
| 1989 | |
| 1990 for ( ;; ) { | |
| 1991 | |
| 1992 if (ctx->state < ngx_http_grpc_st_payload) { | |
| 1993 | |
| 1994 rc = ngx_http_grpc_parse_frame(r, ctx, b); | |
| 1995 | |
| 1996 if (rc == NGX_AGAIN) { | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1997 |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1998 if (ctx->done) { |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1999 |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2000 /* |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2001 * We have finished parsing the response and the |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2002 * remaining control frames. If there are unsent |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2003 * control frames, post a write event to send them. |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2004 */ |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2005 |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2006 if (ctx->out) { |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2007 ngx_post_event(u->peer.connection->write, |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2008 &ngx_posted_events); |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2009 return NGX_AGAIN; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2010 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2011 |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2012 u->length = 0; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2013 |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2014 if (ctx->in == NULL |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2015 && ctx->output_closed |
|
7350
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
2016 && !ctx->output_blocked |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2017 && ctx->state == ngx_http_grpc_st_start) |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2018 { |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2019 u->keepalive = 1; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2020 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2021 |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2022 break; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2023 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2024 |
| 7233 | 2025 return NGX_AGAIN; |
| 2026 } | |
| 2027 | |
| 2028 if (rc == NGX_ERROR) { | |
| 2029 return NGX_ERROR; | |
| 2030 } | |
| 2031 | |
| 2032 if ((ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME | |
| 2033 && !ctx->parsing_headers) | |
| 2034 || (ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME | |
| 2035 && ctx->parsing_headers)) | |
| 2036 { | |
| 2037 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2038 "upstream sent unexpected http2 frame: %d", | |
| 2039 ctx->type); | |
| 2040 return NGX_ERROR; | |
| 2041 } | |
| 2042 | |
| 2043 if (ctx->type == NGX_HTTP_V2_DATA_FRAME) { | |
| 2044 | |
| 2045 if (ctx->stream_id != ctx->id) { | |
| 2046 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2047 "upstream sent data frame " | |
| 2048 "for unknown stream %ui", | |
| 2049 ctx->stream_id); | |
| 2050 return NGX_ERROR; | |
| 2051 } | |
| 2052 | |
| 2053 if (ctx->rest > ctx->recv_window) { | |
| 2054 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2055 "upstream violated stream flow control, " | |
| 2056 "received %uz data frame with window %uz", | |
| 2057 ctx->rest, ctx->recv_window); | |
| 2058 return NGX_ERROR; | |
| 2059 } | |
| 2060 | |
| 2061 if (ctx->rest > ctx->connection->recv_window) { | |
| 2062 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2063 "upstream violated connection flow control, " | |
| 2064 "received %uz data frame with window %uz", | |
| 2065 ctx->rest, ctx->connection->recv_window); | |
| 2066 return NGX_ERROR; | |
| 2067 } | |
| 2068 | |
| 2069 ctx->recv_window -= ctx->rest; | |
| 2070 ctx->connection->recv_window -= ctx->rest; | |
| 2071 | |
| 2072 if (ctx->connection->recv_window < NGX_HTTP_V2_MAX_WINDOW / 4 | |
| 2073 || ctx->recv_window < NGX_HTTP_V2_MAX_WINDOW / 4) | |
| 2074 { | |
| 2075 if (ngx_http_grpc_send_window_update(r, ctx) != NGX_OK) { | |
| 2076 return NGX_ERROR; | |
| 2077 } | |
| 2078 | |
| 2079 ngx_post_event(u->peer.connection->write, | |
| 2080 &ngx_posted_events); | |
| 2081 } | |
| 2082 } | |
| 2083 | |
| 2084 if (ctx->stream_id && ctx->stream_id != ctx->id) { | |
| 2085 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2086 "upstream sent frame for unknown stream %ui", | |
| 2087 ctx->stream_id); | |
| 2088 return NGX_ERROR; | |
| 2089 } | |
| 2090 | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2091 if (ctx->stream_id && ctx->done) { |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2092 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2093 "upstream sent frame for closed stream %ui", |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2094 ctx->stream_id); |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2095 return NGX_ERROR; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2096 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2097 |
| 7233 | 2098 ctx->padding = 0; |
| 2099 } | |
| 2100 | |
| 2101 if (ctx->state == ngx_http_grpc_st_padding) { | |
| 2102 | |
| 2103 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2104 ctx->rest -= b->last - b->pos; | |
| 2105 b->pos = b->last; | |
| 2106 return NGX_AGAIN; | |
| 2107 } | |
| 2108 | |
| 2109 b->pos += ctx->rest; | |
| 2110 ctx->rest = 0; | |
| 2111 ctx->state = ngx_http_grpc_st_start; | |
| 2112 | |
| 2113 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2114 ctx->done = 1; |
| 7233 | 2115 } |
| 2116 | |
| 2117 continue; | |
| 2118 } | |
| 2119 | |
| 2120 /* frame payload */ | |
| 2121 | |
| 2122 if (ctx->type == NGX_HTTP_V2_RST_STREAM_FRAME) { | |
| 2123 | |
| 2124 rc = ngx_http_grpc_parse_rst_stream(r, ctx, b); | |
| 2125 | |
| 2126 if (rc == NGX_AGAIN) { | |
| 2127 return NGX_AGAIN; | |
| 2128 } | |
| 2129 | |
| 2130 if (rc == NGX_ERROR) { | |
| 2131 return NGX_ERROR; | |
| 2132 } | |
| 2133 | |
| 2134 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2135 "upstream rejected request with error %ui", | |
| 2136 ctx->error); | |
| 2137 | |
| 2138 return NGX_ERROR; | |
| 2139 } | |
| 2140 | |
| 2141 if (ctx->type == NGX_HTTP_V2_GOAWAY_FRAME) { | |
| 2142 | |
| 2143 rc = ngx_http_grpc_parse_goaway(r, ctx, b); | |
| 2144 | |
| 2145 if (rc == NGX_AGAIN) { | |
| 2146 return NGX_AGAIN; | |
| 2147 } | |
| 2148 | |
| 2149 if (rc == NGX_ERROR) { | |
| 2150 return NGX_ERROR; | |
| 2151 } | |
| 2152 | |
| 2153 /* | |
| 2154 * If stream_id is lower than one we use, our | |
| 2155 * request won't be processed and needs to be retried. | |
| 2156 * If stream_id is greater or equal to the one we use, | |
| 2157 * we can continue normally (except we can't use this | |
| 2158 * connection for additional requests). If there is | |
| 2159 * a real error, the connection will be closed. | |
| 2160 */ | |
| 2161 | |
| 2162 if (ctx->stream_id < ctx->id) { | |
| 2163 | |
| 2164 /* TODO: we can retry non-idempotent requests */ | |
| 2165 | |
| 2166 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2167 "upstream sent goaway with error %ui", | |
| 2168 ctx->error); | |
| 2169 | |
| 2170 return NGX_ERROR; | |
| 2171 } | |
| 2172 | |
| 2173 continue; | |
| 2174 } | |
| 2175 | |
| 2176 if (ctx->type == NGX_HTTP_V2_WINDOW_UPDATE_FRAME) { | |
| 2177 | |
| 2178 rc = ngx_http_grpc_parse_window_update(r, ctx, b); | |
| 2179 | |
| 2180 if (rc == NGX_AGAIN) { | |
| 2181 return NGX_AGAIN; | |
| 2182 } | |
| 2183 | |
| 2184 if (rc == NGX_ERROR) { | |
| 2185 return NGX_ERROR; | |
| 2186 } | |
| 2187 | |
| 2188 if (ctx->in) { | |
| 2189 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 2190 } | |
| 2191 | |
| 2192 continue; | |
| 2193 } | |
| 2194 | |
| 2195 if (ctx->type == NGX_HTTP_V2_SETTINGS_FRAME) { | |
| 2196 | |
| 2197 rc = ngx_http_grpc_parse_settings(r, ctx, b); | |
| 2198 | |
| 2199 if (rc == NGX_AGAIN) { | |
| 2200 return NGX_AGAIN; | |
| 2201 } | |
| 2202 | |
| 2203 if (rc == NGX_ERROR) { | |
| 2204 return NGX_ERROR; | |
| 2205 } | |
| 2206 | |
| 2207 if (ctx->in) { | |
| 2208 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 2209 } | |
| 2210 | |
| 2211 continue; | |
| 2212 } | |
| 2213 | |
| 2214 if (ctx->type == NGX_HTTP_V2_PING_FRAME) { | |
| 2215 | |
| 2216 rc = ngx_http_grpc_parse_ping(r, ctx, b); | |
| 2217 | |
| 2218 if (rc == NGX_AGAIN) { | |
| 2219 return NGX_AGAIN; | |
| 2220 } | |
| 2221 | |
| 2222 if (rc == NGX_ERROR) { | |
| 2223 return NGX_ERROR; | |
| 2224 } | |
| 2225 | |
| 2226 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 2227 continue; | |
| 2228 } | |
| 2229 | |
| 2230 if (ctx->type == NGX_HTTP_V2_PUSH_PROMISE_FRAME) { | |
| 2231 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2232 "upstream sent unexpected push promise frame"); | |
| 2233 return NGX_ERROR; | |
| 2234 } | |
| 2235 | |
| 2236 if (ctx->type == NGX_HTTP_V2_HEADERS_FRAME | |
| 2237 || ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME) | |
| 2238 { | |
| 2239 for ( ;; ) { | |
| 2240 | |
| 2241 rc = ngx_http_grpc_parse_header(r, ctx, b); | |
| 2242 | |
| 2243 if (rc == NGX_AGAIN) { | |
| 2244 break; | |
| 2245 } | |
| 2246 | |
| 2247 if (rc == NGX_OK) { | |
| 2248 | |
| 2249 /* a header line has been parsed successfully */ | |
| 2250 | |
| 2251 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2252 "grpc trailer: \"%V: %V\"", | |
| 2253 &ctx->name, &ctx->value); | |
| 2254 | |
| 2255 if (ctx->name.len && ctx->name.data[0] == ':') { | |
| 2256 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2257 "upstream sent invalid " | |
| 2258 "trailer \"%V: %V\"", | |
| 2259 &ctx->name, &ctx->value); | |
| 2260 return NGX_ERROR; | |
| 2261 } | |
| 2262 | |
| 2263 h = ngx_list_push(&u->headers_in.trailers); | |
| 2264 if (h == NULL) { | |
| 2265 return NGX_ERROR; | |
| 2266 } | |
| 2267 | |
| 2268 h->key = ctx->name; | |
| 2269 h->value = ctx->value; | |
| 2270 h->lowcase_key = h->key.data; | |
| 2271 h->hash = ngx_hash_key(h->key.data, h->key.len); | |
| 2272 | |
| 2273 continue; | |
| 2274 } | |
| 2275 | |
| 2276 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { | |
| 2277 | |
| 2278 /* a whole header has been parsed successfully */ | |
| 2279 | |
| 2280 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2281 "grpc trailer done"); | |
| 2282 | |
| 2283 if (ctx->end_stream) { | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2284 ctx->done = 1; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2285 break; |
| 7233 | 2286 } |
| 2287 | |
| 2288 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2289 "upstream sent trailer without " | |
| 2290 "end stream flag"); | |
| 2291 return NGX_ERROR; | |
| 2292 } | |
| 2293 | |
| 2294 /* there was error while a header line parsing */ | |
| 2295 | |
| 2296 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2297 "upstream sent invalid trailer"); | |
| 2298 | |
| 2299 return NGX_ERROR; | |
| 2300 } | |
| 2301 | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2302 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2303 continue; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2304 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2305 |
| 7233 | 2306 /* rc == NGX_AGAIN */ |
| 2307 | |
| 2308 if (ctx->rest == 0) { | |
| 2309 ctx->state = ngx_http_grpc_st_start; | |
| 2310 continue; | |
| 2311 } | |
| 2312 | |
| 2313 return NGX_AGAIN; | |
| 2314 } | |
| 2315 | |
| 2316 if (ctx->type != NGX_HTTP_V2_DATA_FRAME) { | |
| 2317 | |
| 2318 /* priority, unknown frames */ | |
| 2319 | |
| 2320 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2321 ctx->rest -= b->last - b->pos; | |
| 2322 b->pos = b->last; | |
| 2323 return NGX_AGAIN; | |
| 2324 } | |
| 2325 | |
| 2326 b->pos += ctx->rest; | |
| 2327 ctx->rest = 0; | |
| 2328 ctx->state = ngx_http_grpc_st_start; | |
| 2329 | |
| 2330 continue; | |
| 2331 } | |
| 2332 | |
| 2333 /* | |
| 2334 * data frame: | |
| 2335 * | |
| 2336 * +---------------+ | |
| 2337 * |Pad Length? (8)| | |
| 2338 * +---------------+-----------------------------------------------+ | |
| 2339 * | Data (*) ... | |
| 2340 * +---------------------------------------------------------------+ | |
| 2341 * | Padding (*) ... | |
| 2342 * +---------------------------------------------------------------+ | |
| 2343 */ | |
| 2344 | |
| 2345 if (ctx->flags & NGX_HTTP_V2_PADDED_FLAG) { | |
| 2346 | |
| 2347 if (ctx->rest == 0) { | |
| 2348 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2349 "upstream sent too short http2 frame"); | |
| 2350 return NGX_ERROR; | |
| 2351 } | |
| 2352 | |
| 2353 if (b->pos == b->last) { | |
| 2354 return NGX_AGAIN; | |
| 2355 } | |
| 2356 | |
| 2357 ctx->flags &= ~NGX_HTTP_V2_PADDED_FLAG; | |
| 2358 ctx->padding = *b->pos++; | |
| 2359 ctx->rest -= 1; | |
| 2360 | |
| 2361 if (ctx->padding > ctx->rest) { | |
| 2362 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2363 "upstream sent http2 frame with too long " | |
| 2364 "padding: %d in frame %uz", | |
| 2365 ctx->padding, ctx->rest); | |
| 2366 return NGX_ERROR; | |
| 2367 } | |
| 2368 | |
| 2369 continue; | |
| 2370 } | |
| 2371 | |
| 2372 if (ctx->rest == ctx->padding) { | |
| 2373 goto done; | |
| 2374 } | |
| 2375 | |
| 2376 if (b->pos == b->last) { | |
| 2377 return NGX_AGAIN; | |
| 2378 } | |
| 2379 | |
| 2380 cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs); | |
| 2381 if (cl == NULL) { | |
| 2382 return NGX_ERROR; | |
| 2383 } | |
| 2384 | |
| 2385 *ll = cl; | |
| 2386 ll = &cl->next; | |
| 2387 | |
| 2388 buf = cl->buf; | |
| 2389 | |
| 2390 buf->flush = 1; | |
| 2391 buf->memory = 1; | |
| 2392 | |
| 2393 buf->pos = b->pos; | |
| 2394 buf->tag = u->output.tag; | |
| 2395 | |
| 2396 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2397 "grpc output buf %p", buf->pos); | |
| 2398 | |
| 2399 if (b->last - b->pos < (ssize_t) ctx->rest - ctx->padding) { | |
| 2400 | |
| 2401 ctx->rest -= b->last - b->pos; | |
| 2402 b->pos = b->last; | |
| 2403 buf->last = b->pos; | |
| 2404 | |
| 2405 return NGX_AGAIN; | |
| 2406 } | |
| 2407 | |
| 2408 b->pos += ctx->rest - ctx->padding; | |
| 2409 buf->last = b->pos; | |
| 2410 ctx->rest = ctx->padding; | |
| 2411 | |
| 2412 done: | |
| 2413 | |
| 2414 if (ctx->padding) { | |
| 2415 ctx->state = ngx_http_grpc_st_padding; | |
| 2416 continue; | |
| 2417 } | |
| 2418 | |
| 2419 ctx->state = ngx_http_grpc_st_start; | |
| 2420 | |
| 2421 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2422 ctx->done = 1; |
| 7233 | 2423 } |
| 2424 } | |
| 2425 | |
| 2426 return NGX_OK; | |
| 2427 } | |
| 2428 | |
| 2429 | |
| 2430 static ngx_int_t | |
| 2431 ngx_http_grpc_parse_frame(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 2432 ngx_buf_t *b) | |
| 2433 { | |
| 2434 u_char ch, *p; | |
| 2435 ngx_http_grpc_state_e state; | |
| 2436 | |
| 2437 state = ctx->state; | |
| 2438 | |
| 2439 for (p = b->pos; p < b->last; p++) { | |
| 2440 ch = *p; | |
| 2441 | |
| 2442 #if 0 | |
| 2443 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2444 "grpc frame byte: %02Xd, s:%d", ch, state); | |
| 2445 #endif | |
| 2446 | |
| 2447 switch (state) { | |
| 2448 | |
| 2449 case ngx_http_grpc_st_start: | |
| 2450 ctx->rest = ch << 16; | |
| 2451 state = ngx_http_grpc_st_length_2; | |
| 2452 break; | |
| 2453 | |
| 2454 case ngx_http_grpc_st_length_2: | |
| 2455 ctx->rest |= ch << 8; | |
| 2456 state = ngx_http_grpc_st_length_3; | |
| 2457 break; | |
| 2458 | |
| 2459 case ngx_http_grpc_st_length_3: | |
| 2460 ctx->rest |= ch; | |
| 2461 | |
| 2462 if (ctx->rest > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
| 2463 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2464 "upstream sent too large http2 frame: %uz", | |
| 2465 ctx->rest); | |
| 2466 return NGX_ERROR; | |
| 2467 } | |
| 2468 | |
| 2469 state = ngx_http_grpc_st_type; | |
| 2470 break; | |
| 2471 | |
| 2472 case ngx_http_grpc_st_type: | |
| 2473 ctx->type = ch; | |
| 2474 state = ngx_http_grpc_st_flags; | |
| 2475 break; | |
| 2476 | |
| 2477 case ngx_http_grpc_st_flags: | |
| 2478 ctx->flags = ch; | |
| 2479 state = ngx_http_grpc_st_stream_id; | |
| 2480 break; | |
| 2481 | |
| 2482 case ngx_http_grpc_st_stream_id: | |
| 2483 ctx->stream_id = (ch & 0x7f) << 24; | |
| 2484 state = ngx_http_grpc_st_stream_id_2; | |
| 2485 break; | |
| 2486 | |
| 2487 case ngx_http_grpc_st_stream_id_2: | |
| 2488 ctx->stream_id |= ch << 16; | |
| 2489 state = ngx_http_grpc_st_stream_id_3; | |
| 2490 break; | |
| 2491 | |
| 2492 case ngx_http_grpc_st_stream_id_3: | |
| 2493 ctx->stream_id |= ch << 8; | |
| 2494 state = ngx_http_grpc_st_stream_id_4; | |
| 2495 break; | |
| 2496 | |
| 2497 case ngx_http_grpc_st_stream_id_4: | |
| 2498 ctx->stream_id |= ch; | |
| 2499 | |
| 2500 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2501 "grpc frame: %d, len: %uz, f:%d, i:%ui", | |
| 2502 ctx->type, ctx->rest, ctx->flags, ctx->stream_id); | |
| 2503 | |
| 2504 b->pos = p + 1; | |
| 2505 | |
| 2506 ctx->state = ngx_http_grpc_st_payload; | |
| 2507 ctx->frame_state = 0; | |
| 2508 | |
| 2509 return NGX_OK; | |
| 2510 | |
| 2511 /* suppress warning */ | |
| 2512 case ngx_http_grpc_st_payload: | |
| 2513 case ngx_http_grpc_st_padding: | |
| 2514 break; | |
| 2515 } | |
| 2516 } | |
| 2517 | |
| 2518 b->pos = p; | |
| 2519 ctx->state = state; | |
| 2520 | |
| 2521 return NGX_AGAIN; | |
| 2522 } | |
| 2523 | |
| 2524 | |
| 2525 static ngx_int_t | |
| 2526 ngx_http_grpc_parse_header(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 2527 ngx_buf_t *b) | |
| 2528 { | |
| 2529 u_char ch, *p, *last; | |
| 2530 size_t min; | |
| 2531 ngx_int_t rc; | |
| 2532 enum { | |
| 2533 sw_start = 0, | |
| 2534 sw_padding_length, | |
| 2535 sw_dependency, | |
| 2536 sw_dependency_2, | |
| 2537 sw_dependency_3, | |
| 2538 sw_dependency_4, | |
| 2539 sw_weight, | |
| 2540 sw_fragment, | |
| 2541 sw_padding | |
| 2542 } state; | |
| 2543 | |
| 2544 state = ctx->frame_state; | |
| 2545 | |
| 2546 if (state == sw_start) { | |
| 2547 | |
| 2548 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2549 "grpc parse header: start"); | |
| 2550 | |
| 2551 if (ctx->type == NGX_HTTP_V2_HEADERS_FRAME) { | |
| 2552 ctx->parsing_headers = 1; | |
| 2553 ctx->fragment_state = 0; | |
| 2554 | |
| 2555 min = (ctx->flags & NGX_HTTP_V2_PADDED_FLAG ? 1 : 0) | |
| 2556 + (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG ? 5 : 0); | |
| 2557 | |
| 2558 if (ctx->rest < min) { | |
| 2559 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2560 "upstream sent headers frame " | |
| 2561 "with invalid length: %uz", | |
| 2562 ctx->rest); | |
| 2563 return NGX_ERROR; | |
| 2564 } | |
| 2565 | |
| 2566 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
| 2567 ctx->end_stream = 1; | |
| 2568 } | |
| 2569 | |
| 2570 if (ctx->flags & NGX_HTTP_V2_PADDED_FLAG) { | |
| 2571 state = sw_padding_length; | |
| 2572 | |
| 2573 } else if (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG) { | |
| 2574 state = sw_dependency; | |
| 2575 | |
| 2576 } else { | |
| 2577 state = sw_fragment; | |
| 2578 } | |
| 2579 | |
| 2580 } else if (ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME) { | |
| 2581 state = sw_fragment; | |
| 2582 } | |
| 2583 | |
| 2584 ctx->padding = 0; | |
|
7242
25a4353633a0
gRPC: fixed missing state save in frame header parsing.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7240
diff
changeset
|
2585 ctx->frame_state = state; |
| 7233 | 2586 } |
| 2587 | |
| 2588 if (state < sw_fragment) { | |
| 2589 | |
| 2590 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2591 last = b->last; | |
| 2592 | |
| 2593 } else { | |
| 2594 last = b->pos + ctx->rest; | |
| 2595 } | |
| 2596 | |
| 2597 for (p = b->pos; p < last; p++) { | |
| 2598 ch = *p; | |
| 2599 | |
| 2600 #if 0 | |
| 2601 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2602 "grpc header byte: %02Xd s:%d", ch, state); | |
| 2603 #endif | |
| 2604 | |
| 2605 /* | |
| 2606 * headers frame: | |
| 2607 * | |
| 2608 * +---------------+ | |
| 2609 * |Pad Length? (8)| | |
| 2610 * +-+-------------+----------------------------------------------+ | |
| 2611 * |E| Stream Dependency? (31) | | |
| 2612 * +-+-------------+----------------------------------------------+ | |
| 2613 * | Weight? (8) | | |
| 2614 * +-+-------------+----------------------------------------------+ | |
| 2615 * | Header Block Fragment (*) ... | |
| 2616 * +--------------------------------------------------------------+ | |
| 2617 * | Padding (*) ... | |
| 2618 * +--------------------------------------------------------------+ | |
| 2619 */ | |
| 2620 | |
| 2621 switch (state) { | |
| 2622 | |
| 2623 case sw_padding_length: | |
| 2624 | |
| 2625 ctx->padding = ch; | |
| 2626 | |
| 2627 if (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG) { | |
| 2628 state = sw_dependency; | |
| 2629 break; | |
| 2630 } | |
| 2631 | |
| 2632 goto fragment; | |
| 2633 | |
| 2634 case sw_dependency: | |
| 2635 state = sw_dependency_2; | |
| 2636 break; | |
| 2637 | |
| 2638 case sw_dependency_2: | |
| 2639 state = sw_dependency_3; | |
| 2640 break; | |
| 2641 | |
| 2642 case sw_dependency_3: | |
| 2643 state = sw_dependency_4; | |
| 2644 break; | |
| 2645 | |
| 2646 case sw_dependency_4: | |
| 2647 state = sw_weight; | |
| 2648 break; | |
| 2649 | |
| 2650 case sw_weight: | |
| 2651 goto fragment; | |
| 2652 | |
| 2653 /* suppress warning */ | |
| 2654 case sw_start: | |
| 2655 case sw_fragment: | |
| 2656 case sw_padding: | |
| 2657 break; | |
| 2658 } | |
| 2659 } | |
| 2660 | |
| 2661 ctx->rest -= p - b->pos; | |
| 2662 b->pos = p; | |
| 2663 | |
| 2664 ctx->frame_state = state; | |
| 2665 return NGX_AGAIN; | |
| 2666 | |
| 2667 fragment: | |
| 2668 | |
| 2669 p++; | |
| 2670 ctx->rest -= p - b->pos; | |
| 2671 b->pos = p; | |
| 2672 | |
| 2673 if (ctx->padding > ctx->rest) { | |
| 2674 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2675 "upstream sent http2 frame with too long " | |
| 2676 "padding: %d in frame %uz", | |
| 2677 ctx->padding, ctx->rest); | |
| 2678 return NGX_ERROR; | |
| 2679 } | |
| 2680 | |
| 2681 state = sw_fragment; | |
| 2682 ctx->frame_state = state; | |
| 2683 } | |
| 2684 | |
| 2685 if (state == sw_fragment) { | |
| 2686 | |
| 2687 rc = ngx_http_grpc_parse_fragment(r, ctx, b); | |
| 2688 | |
| 2689 if (rc == NGX_AGAIN) { | |
| 2690 return NGX_AGAIN; | |
| 2691 } | |
| 2692 | |
| 2693 if (rc == NGX_ERROR) { | |
| 2694 return NGX_ERROR; | |
| 2695 } | |
| 2696 | |
| 2697 if (rc == NGX_OK) { | |
| 2698 return NGX_OK; | |
| 2699 } | |
| 2700 | |
| 2701 /* rc == NGX_DONE */ | |
| 2702 | |
| 2703 state = sw_padding; | |
| 2704 ctx->frame_state = state; | |
| 2705 } | |
| 2706 | |
| 2707 if (state == sw_padding) { | |
| 2708 | |
| 2709 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2710 | |
| 2711 ctx->rest -= b->last - b->pos; | |
| 2712 b->pos = b->last; | |
| 2713 | |
| 2714 return NGX_AGAIN; | |
| 2715 } | |
| 2716 | |
| 2717 b->pos += ctx->rest; | |
| 2718 ctx->rest = 0; | |
| 2719 | |
| 2720 ctx->state = ngx_http_grpc_st_start; | |
| 2721 | |
| 2722 if (ctx->flags & NGX_HTTP_V2_END_HEADERS_FLAG) { | |
| 2723 | |
| 2724 if (ctx->fragment_state) { | |
| 2725 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2726 "upstream sent truncated http2 header"); | |
| 2727 return NGX_ERROR; | |
| 2728 } | |
| 2729 | |
| 2730 ctx->parsing_headers = 0; | |
| 2731 | |
| 2732 return NGX_HTTP_PARSE_HEADER_DONE; | |
| 2733 } | |
| 2734 | |
| 2735 return NGX_AGAIN; | |
| 2736 } | |
| 2737 | |
| 2738 /* unreachable */ | |
| 2739 | |
| 2740 return NGX_ERROR; | |
| 2741 } | |
| 2742 | |
| 2743 | |
| 2744 static ngx_int_t | |
| 2745 ngx_http_grpc_parse_fragment(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 2746 ngx_buf_t *b) | |
| 2747 { | |
| 2748 u_char ch, *p, *last; | |
| 2749 size_t size; | |
| 2750 ngx_uint_t index, size_update; | |
| 2751 enum { | |
| 2752 sw_start = 0, | |
| 2753 sw_index, | |
| 2754 sw_name_length, | |
| 2755 sw_name_length_2, | |
| 2756 sw_name_length_3, | |
| 2757 sw_name_length_4, | |
| 2758 sw_name, | |
| 2759 sw_name_bytes, | |
| 2760 sw_value_length, | |
| 2761 sw_value_length_2, | |
| 2762 sw_value_length_3, | |
| 2763 sw_value_length_4, | |
| 2764 sw_value, | |
| 2765 sw_value_bytes | |
| 2766 } state; | |
| 2767 | |
| 2768 /* header block fragment */ | |
| 2769 | |
| 2770 #if 0 | |
| 2771 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2772 "grpc header fragment %p:%p rest:%uz", | |
| 2773 b->pos, b->last, ctx->rest); | |
| 2774 #endif | |
| 2775 | |
| 2776 if (b->last - b->pos < (ssize_t) ctx->rest - ctx->padding) { | |
| 2777 last = b->last; | |
| 2778 | |
| 2779 } else { | |
| 2780 last = b->pos + ctx->rest - ctx->padding; | |
| 2781 } | |
| 2782 | |
| 2783 state = ctx->fragment_state; | |
| 2784 | |
| 2785 for (p = b->pos; p < last; p++) { | |
| 2786 ch = *p; | |
| 2787 | |
| 2788 #if 0 | |
| 2789 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2790 "grpc header byte: %02Xd s:%d", ch, state); | |
| 2791 #endif | |
| 2792 | |
| 2793 switch (state) { | |
| 2794 | |
| 2795 case sw_start: | |
| 2796 ctx->index = 0; | |
| 2797 | |
| 2798 if ((ch & 0x80) == 0x80) { | |
| 2799 /* | |
| 2800 * indexed header: | |
| 2801 * | |
| 2802 * 0 1 2 3 4 5 6 7 | |
| 2803 * +---+---+---+---+---+---+---+---+ | |
| 2804 * | 1 | Index (7+) | | |
| 2805 * +---+---------------------------+ | |
| 2806 */ | |
| 2807 | |
| 2808 index = ch & ~0x80; | |
| 2809 | |
| 2810 if (index == 0 || index > 61) { | |
| 2811 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2812 "upstream sent invalid http2 " | |
| 2813 "table index: %ui", index); | |
| 2814 return NGX_ERROR; | |
| 2815 } | |
| 2816 | |
| 2817 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2818 "grpc indexed header: %ui", index); | |
| 2819 | |
| 2820 ctx->index = index; | |
| 2821 ctx->literal = 0; | |
| 2822 | |
| 2823 goto done; | |
| 2824 | |
| 2825 } else if ((ch & 0xc0) == 0x40) { | |
| 2826 /* | |
| 2827 * literal header with incremental indexing: | |
| 2828 * | |
| 2829 * 0 1 2 3 4 5 6 7 | |
| 2830 * +---+---+---+---+---+---+---+---+ | |
| 2831 * | 0 | 1 | Index (6+) | | |
| 2832 * +---+---+-----------------------+ | |
| 2833 * | H | Value Length (7+) | | |
| 2834 * +---+---------------------------+ | |
| 2835 * | Value String (Length octets) | | |
| 2836 * +-------------------------------+ | |
| 2837 * | |
| 2838 * 0 1 2 3 4 5 6 7 | |
| 2839 * +---+---+---+---+---+---+---+---+ | |
| 2840 * | 0 | 1 | 0 | | |
| 2841 * +---+---+-----------------------+ | |
| 2842 * | H | Name Length (7+) | | |
| 2843 * +---+---------------------------+ | |
| 2844 * | Name String (Length octets) | | |
| 2845 * +---+---------------------------+ | |
| 2846 * | H | Value Length (7+) | | |
| 2847 * +---+---------------------------+ | |
| 2848 * | Value String (Length octets) | | |
| 2849 * +-------------------------------+ | |
| 2850 */ | |
| 2851 | |
| 2852 index = ch & ~0xc0; | |
| 2853 | |
| 2854 if (index > 61) { | |
| 2855 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2856 "upstream sent invalid http2 " | |
| 2857 "table index: %ui", index); | |
| 2858 return NGX_ERROR; | |
| 2859 } | |
| 2860 | |
| 2861 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2862 "grpc literal header: %ui", index); | |
| 2863 | |
| 2864 if (index == 0) { | |
| 2865 state = sw_name_length; | |
| 2866 break; | |
| 2867 } | |
| 2868 | |
| 2869 ctx->index = index; | |
| 2870 ctx->literal = 1; | |
| 2871 | |
| 2872 state = sw_value_length; | |
| 2873 break; | |
| 2874 | |
| 2875 } else if ((ch & 0xe0) == 0x20) { | |
| 2876 /* | |
| 2877 * dynamic table size update: | |
| 2878 * | |
| 2879 * 0 1 2 3 4 5 6 7 | |
| 2880 * +---+---+---+---+---+---+---+---+ | |
| 2881 * | 0 | 0 | 1 | Max size (5+) | | |
| 2882 * +---+---------------------------+ | |
| 2883 */ | |
| 2884 | |
| 2885 size_update = ch & ~0xe0; | |
| 2886 | |
| 2887 if (size_update > 0) { | |
| 2888 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2889 "upstream sent invalid http2 " | |
| 2890 "dynamic table size update: %ui", | |
| 2891 size_update); | |
| 2892 return NGX_ERROR; | |
| 2893 } | |
| 2894 | |
| 2895 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2896 "grpc table size update: %ui", size_update); | |
| 2897 | |
| 2898 break; | |
| 2899 | |
| 2900 } else if ((ch & 0xf0) == 0x10) { | |
| 2901 /* | |
| 2902 * literal header field never indexed: | |
| 2903 * | |
| 2904 * 0 1 2 3 4 5 6 7 | |
| 2905 * +---+---+---+---+---+---+---+---+ | |
| 2906 * | 0 | 0 | 0 | 1 | Index (4+) | | |
| 2907 * +---+---+-----------------------+ | |
| 2908 * | H | Value Length (7+) | | |
| 2909 * +---+---------------------------+ | |
| 2910 * | Value String (Length octets) | | |
| 2911 * +-------------------------------+ | |
| 2912 * | |
| 2913 * 0 1 2 3 4 5 6 7 | |
| 2914 * +---+---+---+---+---+---+---+---+ | |
| 2915 * | 0 | 0 | 0 | 1 | 0 | | |
| 2916 * +---+---+-----------------------+ | |
| 2917 * | H | Name Length (7+) | | |
| 2918 * +---+---------------------------+ | |
| 2919 * | Name String (Length octets) | | |
| 2920 * +---+---------------------------+ | |
| 2921 * | H | Value Length (7+) | | |
| 2922 * +---+---------------------------+ | |
| 2923 * | Value String (Length octets) | | |
| 2924 * +-------------------------------+ | |
| 2925 */ | |
| 2926 | |
| 2927 index = ch & ~0xf0; | |
| 2928 | |
| 2929 if (index == 0x0f) { | |
| 2930 ctx->index = index; | |
| 2931 ctx->literal = 1; | |
| 2932 state = sw_index; | |
| 2933 break; | |
| 2934 } | |
| 2935 | |
| 2936 if (index == 0) { | |
| 2937 state = sw_name_length; | |
| 2938 break; | |
| 2939 } | |
| 2940 | |
| 2941 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2942 "grpc literal header never indexed: %ui", | |
| 2943 index); | |
| 2944 | |
| 2945 ctx->index = index; | |
| 2946 ctx->literal = 1; | |
| 2947 | |
| 2948 state = sw_value_length; | |
| 2949 break; | |
| 2950 | |
| 2951 } else if ((ch & 0xf0) == 0x00) { | |
| 2952 /* | |
| 2953 * literal header field without indexing: | |
| 2954 * | |
| 2955 * 0 1 2 3 4 5 6 7 | |
| 2956 * +---+---+---+---+---+---+---+---+ | |
| 2957 * | 0 | 0 | 0 | 0 | Index (4+) | | |
| 2958 * +---+---+-----------------------+ | |
| 2959 * | H | Value Length (7+) | | |
| 2960 * +---+---------------------------+ | |
| 2961 * | Value String (Length octets) | | |
| 2962 * +-------------------------------+ | |
| 2963 * | |
| 2964 * 0 1 2 3 4 5 6 7 | |
| 2965 * +---+---+---+---+---+---+---+---+ | |
| 2966 * | 0 | 0 | 0 | 0 | 0 | | |
| 2967 * +---+---+-----------------------+ | |
| 2968 * | H | Name Length (7+) | | |
| 2969 * +---+---------------------------+ | |
| 2970 * | Name String (Length octets) | | |
| 2971 * +---+---------------------------+ | |
| 2972 * | H | Value Length (7+) | | |
| 2973 * +---+---------------------------+ | |
| 2974 * | Value String (Length octets) | | |
| 2975 * +-------------------------------+ | |
| 2976 */ | |
| 2977 | |
| 2978 index = ch & ~0xf0; | |
| 2979 | |
| 2980 if (index == 0x0f) { | |
| 2981 ctx->index = index; | |
| 2982 ctx->literal = 1; | |
| 2983 state = sw_index; | |
| 2984 break; | |
| 2985 } | |
| 2986 | |
| 2987 if (index == 0) { | |
| 2988 state = sw_name_length; | |
| 2989 break; | |
| 2990 } | |
| 2991 | |
| 2992 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2993 "grpc literal header without indexing: %ui", | |
| 2994 index); | |
| 2995 | |
| 2996 ctx->index = index; | |
| 2997 ctx->literal = 1; | |
| 2998 | |
| 2999 state = sw_value_length; | |
| 3000 break; | |
| 3001 } | |
| 3002 | |
| 3003 /* not reached */ | |
| 3004 | |
| 3005 return NGX_ERROR; | |
| 3006 | |
| 3007 case sw_index: | |
| 3008 ctx->index = ctx->index + (ch & ~0x80); | |
| 3009 | |
| 3010 if (ch & 0x80) { | |
| 3011 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3012 "upstream sent http2 table index " | |
| 3013 "with continuation flag"); | |
| 3014 return NGX_ERROR; | |
| 3015 } | |
| 3016 | |
| 3017 if (ctx->index > 61) { | |
| 3018 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3019 "upstream sent invalid http2 " | |
| 3020 "table index: %ui", ctx->index); | |
| 3021 return NGX_ERROR; | |
| 3022 } | |
| 3023 | |
| 3024 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3025 "grpc header index: %ui", ctx->index); | |
| 3026 | |
| 3027 state = sw_value_length; | |
| 3028 break; | |
| 3029 | |
| 3030 case sw_name_length: | |
| 3031 ctx->field_huffman = ch & 0x80 ? 1 : 0; | |
| 3032 ctx->field_length = ch & ~0x80; | |
| 3033 | |
| 3034 if (ctx->field_length == 0x7f) { | |
| 3035 state = sw_name_length_2; | |
| 3036 break; | |
| 3037 } | |
| 3038 | |
| 3039 if (ctx->field_length == 0) { | |
| 3040 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3041 "upstream sent zero http2 " | |
| 3042 "header name length"); | |
| 3043 return NGX_ERROR; | |
| 3044 } | |
| 3045 | |
| 3046 state = sw_name; | |
| 3047 break; | |
| 3048 | |
| 3049 case sw_name_length_2: | |
| 3050 ctx->field_length += ch & ~0x80; | |
| 3051 | |
| 3052 if (ch & 0x80) { | |
| 3053 state = sw_name_length_3; | |
| 3054 break; | |
| 3055 } | |
| 3056 | |
| 3057 state = sw_name; | |
| 3058 break; | |
| 3059 | |
| 3060 case sw_name_length_3: | |
| 3061 ctx->field_length += (ch & ~0x80) << 7; | |
| 3062 | |
| 3063 if (ch & 0x80) { | |
| 3064 state = sw_name_length_4; | |
| 3065 break; | |
| 3066 } | |
| 3067 | |
| 3068 state = sw_name; | |
| 3069 break; | |
| 3070 | |
| 3071 case sw_name_length_4: | |
| 3072 ctx->field_length += (ch & ~0x80) << 14; | |
| 3073 | |
| 3074 if (ch & 0x80) { | |
| 3075 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3076 "upstream sent too large http2 " | |
| 3077 "header name length"); | |
| 3078 return NGX_ERROR; | |
| 3079 } | |
| 3080 | |
| 3081 state = sw_name; | |
| 3082 break; | |
| 3083 | |
| 3084 case sw_name: | |
| 3085 ctx->name.len = ctx->field_huffman ? | |
| 3086 ctx->field_length * 8 / 5 : ctx->field_length; | |
| 3087 | |
| 3088 ctx->name.data = ngx_pnalloc(r->pool, ctx->name.len + 1); | |
| 3089 if (ctx->name.data == NULL) { | |
| 3090 return NGX_ERROR; | |
| 3091 } | |
| 3092 | |
| 3093 ctx->field_end = ctx->name.data; | |
| 3094 ctx->field_rest = ctx->field_length; | |
| 3095 ctx->field_state = 0; | |
| 3096 | |
| 3097 state = sw_name_bytes; | |
| 3098 | |
| 3099 /* fall through */ | |
| 3100 | |
| 3101 case sw_name_bytes: | |
| 3102 | |
| 3103 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3104 "grpc name: len:%uz h:%d last:%uz, rest:%uz", | |
| 3105 ctx->field_length, | |
| 3106 ctx->field_huffman, | |
| 3107 last - p, | |
| 3108 ctx->rest - (p - b->pos)); | |
| 3109 | |
| 3110 size = ngx_min(last - p, (ssize_t) ctx->field_rest); | |
| 3111 ctx->field_rest -= size; | |
| 3112 | |
| 3113 if (ctx->field_huffman) { | |
| 3114 if (ngx_http_v2_huff_decode(&ctx->field_state, p, size, | |
| 3115 &ctx->field_end, | |
| 3116 ctx->field_rest == 0, | |
| 3117 r->connection->log) | |
| 3118 != NGX_OK) | |
| 3119 { | |
| 3120 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3121 "upstream sent invalid encoded header"); | |
| 3122 return NGX_ERROR; | |
| 3123 } | |
| 3124 | |
| 3125 ctx->name.len = ctx->field_end - ctx->name.data; | |
| 3126 ctx->name.data[ctx->name.len] = '\0'; | |
| 3127 | |
| 3128 } else { | |
|
7240
413189f03c8d
gRPC: fixed parsing response headers split on CONTINUATION frames.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7235
diff
changeset
|
3129 ctx->field_end = ngx_cpymem(ctx->field_end, p, size); |
| 7233 | 3130 ctx->name.data[ctx->name.len] = '\0'; |
| 3131 } | |
| 3132 | |
| 3133 p += size - 1; | |
| 3134 | |
| 3135 if (ctx->field_rest == 0) { | |
| 3136 state = sw_value_length; | |
| 3137 } | |
| 3138 | |
| 3139 break; | |
| 3140 | |
| 3141 case sw_value_length: | |
| 3142 ctx->field_huffman = ch & 0x80 ? 1 : 0; | |
| 3143 ctx->field_length = ch & ~0x80; | |
| 3144 | |
| 3145 if (ctx->field_length == 0x7f) { | |
| 3146 state = sw_value_length_2; | |
| 3147 break; | |
| 3148 } | |
| 3149 | |
| 3150 if (ctx->field_length == 0) { | |
| 3151 ngx_str_set(&ctx->value, ""); | |
| 3152 goto done; | |
| 3153 } | |
| 3154 | |
| 3155 state = sw_value; | |
| 3156 break; | |
| 3157 | |
| 3158 case sw_value_length_2: | |
| 3159 ctx->field_length += ch & ~0x80; | |
| 3160 | |
| 3161 if (ch & 0x80) { | |
| 3162 state = sw_value_length_3; | |
| 3163 break; | |
| 3164 } | |
| 3165 | |
| 3166 state = sw_value; | |
| 3167 break; | |
| 3168 | |
| 3169 case sw_value_length_3: | |
| 3170 ctx->field_length += (ch & ~0x80) << 7; | |
| 3171 | |
| 3172 if (ch & 0x80) { | |
| 3173 state = sw_value_length_4; | |
| 3174 break; | |
| 3175 } | |
| 3176 | |
| 3177 state = sw_value; | |
| 3178 break; | |
| 3179 | |
| 3180 case sw_value_length_4: | |
| 3181 ctx->field_length += (ch & ~0x80) << 14; | |
| 3182 | |
| 3183 if (ch & 0x80) { | |
| 3184 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3185 "upstream sent too large http2 " | |
| 3186 "header value length"); | |
| 3187 return NGX_ERROR; | |
| 3188 } | |
| 3189 | |
| 3190 state = sw_value; | |
| 3191 break; | |
| 3192 | |
| 3193 case sw_value: | |
| 3194 ctx->value.len = ctx->field_huffman ? | |
| 3195 ctx->field_length * 8 / 5 : ctx->field_length; | |
| 3196 | |
| 3197 ctx->value.data = ngx_pnalloc(r->pool, ctx->value.len + 1); | |
| 3198 if (ctx->value.data == NULL) { | |
| 3199 return NGX_ERROR; | |
| 3200 } | |
| 3201 | |
| 3202 ctx->field_end = ctx->value.data; | |
| 3203 ctx->field_rest = ctx->field_length; | |
| 3204 ctx->field_state = 0; | |
| 3205 | |
| 3206 state = sw_value_bytes; | |
| 3207 | |
| 3208 /* fall through */ | |
| 3209 | |
| 3210 case sw_value_bytes: | |
| 3211 | |
| 3212 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3213 "grpc value: len:%uz h:%d last:%uz, rest:%uz", | |
| 3214 ctx->field_length, | |
| 3215 ctx->field_huffman, | |
| 3216 last - p, | |
| 3217 ctx->rest - (p - b->pos)); | |
| 3218 | |
| 3219 size = ngx_min(last - p, (ssize_t) ctx->field_rest); | |
| 3220 ctx->field_rest -= size; | |
| 3221 | |
| 3222 if (ctx->field_huffman) { | |
| 3223 if (ngx_http_v2_huff_decode(&ctx->field_state, p, size, | |
| 3224 &ctx->field_end, | |
| 3225 ctx->field_rest == 0, | |
| 3226 r->connection->log) | |
| 3227 != NGX_OK) | |
| 3228 { | |
| 3229 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3230 "upstream sent invalid encoded header"); | |
| 3231 return NGX_ERROR; | |
| 3232 } | |
| 3233 | |
| 3234 ctx->value.len = ctx->field_end - ctx->value.data; | |
| 3235 ctx->value.data[ctx->value.len] = '\0'; | |
| 3236 | |
| 3237 } else { | |
|
7240
413189f03c8d
gRPC: fixed parsing response headers split on CONTINUATION frames.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7235
diff
changeset
|
3238 ctx->field_end = ngx_cpymem(ctx->field_end, p, size); |
| 7233 | 3239 ctx->value.data[ctx->value.len] = '\0'; |
| 3240 } | |
| 3241 | |
| 3242 p += size - 1; | |
| 3243 | |
| 3244 if (ctx->field_rest == 0) { | |
| 3245 goto done; | |
| 3246 } | |
| 3247 | |
| 3248 break; | |
| 3249 } | |
| 3250 | |
| 3251 continue; | |
| 3252 | |
| 3253 done: | |
| 3254 | |
| 3255 p++; | |
| 3256 ctx->rest -= p - b->pos; | |
| 3257 ctx->fragment_state = sw_start; | |
| 3258 b->pos = p; | |
| 3259 | |
| 3260 if (ctx->index) { | |
| 3261 ctx->name = *ngx_http_v2_get_static_name(ctx->index); | |
| 3262 } | |
| 3263 | |
| 3264 if (ctx->index && !ctx->literal) { | |
| 3265 ctx->value = *ngx_http_v2_get_static_value(ctx->index); | |
| 3266 } | |
| 3267 | |
| 3268 if (!ctx->index) { | |
| 3269 if (ngx_http_grpc_validate_header_name(r, &ctx->name) != NGX_OK) { | |
| 3270 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3271 "upstream sent invalid header: \"%V: %V\"", | |
| 3272 &ctx->name, &ctx->value); | |
| 3273 return NGX_ERROR; | |
| 3274 } | |
| 3275 } | |
| 3276 | |
| 3277 if (!ctx->index || ctx->literal) { | |
| 3278 if (ngx_http_grpc_validate_header_value(r, &ctx->value) != NGX_OK) { | |
| 3279 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3280 "upstream sent invalid header: \"%V: %V\"", | |
| 3281 &ctx->name, &ctx->value); | |
| 3282 return NGX_ERROR; | |
| 3283 } | |
| 3284 } | |
| 3285 | |
| 3286 return NGX_OK; | |
| 3287 } | |
| 3288 | |
| 3289 ctx->rest -= p - b->pos; | |
| 3290 ctx->fragment_state = state; | |
| 3291 b->pos = p; | |
| 3292 | |
| 3293 if (ctx->rest > ctx->padding) { | |
| 3294 return NGX_AGAIN; | |
| 3295 } | |
| 3296 | |
| 3297 return NGX_DONE; | |
| 3298 } | |
| 3299 | |
| 3300 | |
| 3301 static ngx_int_t | |
| 3302 ngx_http_grpc_validate_header_name(ngx_http_request_t *r, ngx_str_t *s) | |
| 3303 { | |
| 3304 u_char ch; | |
| 3305 ngx_uint_t i; | |
| 3306 | |
| 3307 for (i = 0; i < s->len; i++) { | |
| 3308 ch = s->data[i]; | |
| 3309 | |
| 3310 if (ch == ':' && i > 0) { | |
| 3311 return NGX_ERROR; | |
| 3312 } | |
| 3313 | |
| 3314 if (ch >= 'A' && ch <= 'Z') { | |
| 3315 return NGX_ERROR; | |
| 3316 } | |
| 3317 | |
| 3318 if (ch == '\0' || ch == CR || ch == LF) { | |
| 3319 return NGX_ERROR; | |
| 3320 } | |
| 3321 } | |
| 3322 | |
| 3323 return NGX_OK; | |
| 3324 } | |
| 3325 | |
| 3326 | |
| 3327 static ngx_int_t | |
| 3328 ngx_http_grpc_validate_header_value(ngx_http_request_t *r, ngx_str_t *s) | |
| 3329 { | |
| 3330 u_char ch; | |
| 3331 ngx_uint_t i; | |
| 3332 | |
| 3333 for (i = 0; i < s->len; i++) { | |
| 3334 ch = s->data[i]; | |
| 3335 | |
| 3336 if (ch == '\0' || ch == CR || ch == LF) { | |
| 3337 return NGX_ERROR; | |
| 3338 } | |
| 3339 } | |
| 3340 | |
| 3341 return NGX_OK; | |
| 3342 } | |
| 3343 | |
| 3344 | |
| 3345 static ngx_int_t | |
| 3346 ngx_http_grpc_parse_rst_stream(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 3347 ngx_buf_t *b) | |
| 3348 { | |
| 3349 u_char ch, *p, *last; | |
| 3350 enum { | |
| 3351 sw_start = 0, | |
| 3352 sw_error_2, | |
| 3353 sw_error_3, | |
| 3354 sw_error_4 | |
| 3355 } state; | |
| 3356 | |
| 3357 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3358 last = b->last; | |
| 3359 | |
| 3360 } else { | |
| 3361 last = b->pos + ctx->rest; | |
| 3362 } | |
| 3363 | |
| 3364 state = ctx->frame_state; | |
| 3365 | |
| 3366 if (state == sw_start) { | |
| 3367 if (ctx->rest != 4) { | |
| 3368 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3369 "upstream sent rst stream frame " | |
| 3370 "with invalid length: %uz", | |
| 3371 ctx->rest); | |
| 3372 return NGX_ERROR; | |
| 3373 } | |
| 3374 } | |
| 3375 | |
| 3376 for (p = b->pos; p < last; p++) { | |
| 3377 ch = *p; | |
| 3378 | |
| 3379 #if 0 | |
| 3380 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3381 "grpc rst byte: %02Xd s:%d", ch, state); | |
| 3382 #endif | |
| 3383 | |
| 3384 switch (state) { | |
| 3385 | |
| 3386 case sw_start: | |
|
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3387 ctx->error = (ngx_uint_t) ch << 24; |
| 7233 | 3388 state = sw_error_2; |
| 3389 break; | |
| 3390 | |
| 3391 case sw_error_2: | |
| 3392 ctx->error |= ch << 16; | |
| 3393 state = sw_error_3; | |
| 3394 break; | |
| 3395 | |
| 3396 case sw_error_3: | |
| 3397 ctx->error |= ch << 8; | |
| 3398 state = sw_error_4; | |
| 3399 break; | |
| 3400 | |
| 3401 case sw_error_4: | |
| 3402 ctx->error |= ch; | |
| 3403 state = sw_start; | |
| 3404 | |
| 3405 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3406 "grpc error: %ui", ctx->error); | |
| 3407 | |
| 3408 break; | |
| 3409 } | |
| 3410 } | |
| 3411 | |
| 3412 ctx->rest -= p - b->pos; | |
| 3413 ctx->frame_state = state; | |
| 3414 b->pos = p; | |
| 3415 | |
| 3416 if (ctx->rest > 0) { | |
| 3417 return NGX_AGAIN; | |
| 3418 } | |
| 3419 | |
| 3420 return NGX_OK; | |
| 3421 } | |
| 3422 | |
| 3423 | |
| 3424 static ngx_int_t | |
| 3425 ngx_http_grpc_parse_goaway(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 3426 ngx_buf_t *b) | |
| 3427 { | |
| 3428 u_char ch, *p, *last; | |
| 3429 enum { | |
| 3430 sw_start = 0, | |
| 3431 sw_last_stream_id_2, | |
| 3432 sw_last_stream_id_3, | |
| 3433 sw_last_stream_id_4, | |
| 3434 sw_error, | |
| 3435 sw_error_2, | |
| 3436 sw_error_3, | |
| 3437 sw_error_4, | |
| 3438 sw_debug | |
| 3439 } state; | |
| 3440 | |
| 3441 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3442 last = b->last; | |
| 3443 | |
| 3444 } else { | |
| 3445 last = b->pos + ctx->rest; | |
| 3446 } | |
| 3447 | |
| 3448 state = ctx->frame_state; | |
| 3449 | |
| 3450 if (state == sw_start) { | |
| 3451 | |
| 3452 if (ctx->stream_id) { | |
| 3453 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3454 "upstream sent goaway frame " | |
| 3455 "with non-zero stream id: %ui", | |
| 3456 ctx->stream_id); | |
| 3457 return NGX_ERROR; | |
| 3458 } | |
| 3459 | |
| 3460 if (ctx->rest < 8) { | |
| 3461 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3462 "upstream sent goaway frame " | |
| 3463 "with invalid length: %uz", | |
| 3464 ctx->rest); | |
| 3465 return NGX_ERROR; | |
| 3466 } | |
| 3467 } | |
| 3468 | |
| 3469 for (p = b->pos; p < last; p++) { | |
| 3470 ch = *p; | |
| 3471 | |
| 3472 #if 0 | |
| 3473 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3474 "grpc goaway byte: %02Xd s:%d", ch, state); | |
| 3475 #endif | |
| 3476 | |
| 3477 switch (state) { | |
| 3478 | |
| 3479 case sw_start: | |
| 3480 ctx->stream_id = (ch & 0x7f) << 24; | |
| 3481 state = sw_last_stream_id_2; | |
| 3482 break; | |
| 3483 | |
| 3484 case sw_last_stream_id_2: | |
| 3485 ctx->stream_id |= ch << 16; | |
| 3486 state = sw_last_stream_id_3; | |
| 3487 break; | |
| 3488 | |
| 3489 case sw_last_stream_id_3: | |
| 3490 ctx->stream_id |= ch << 8; | |
| 3491 state = sw_last_stream_id_4; | |
| 3492 break; | |
| 3493 | |
| 3494 case sw_last_stream_id_4: | |
| 3495 ctx->stream_id |= ch; | |
| 3496 state = sw_error; | |
| 3497 break; | |
| 3498 | |
| 3499 case sw_error: | |
|
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3500 ctx->error = (ngx_uint_t) ch << 24; |
| 7233 | 3501 state = sw_error_2; |
| 3502 break; | |
| 3503 | |
| 3504 case sw_error_2: | |
| 3505 ctx->error |= ch << 16; | |
| 3506 state = sw_error_3; | |
| 3507 break; | |
| 3508 | |
| 3509 case sw_error_3: | |
| 3510 ctx->error |= ch << 8; | |
| 3511 state = sw_error_4; | |
| 3512 break; | |
| 3513 | |
| 3514 case sw_error_4: | |
| 3515 ctx->error |= ch; | |
| 3516 state = sw_debug; | |
| 3517 break; | |
| 3518 | |
| 3519 case sw_debug: | |
| 3520 break; | |
| 3521 } | |
| 3522 } | |
| 3523 | |
| 3524 ctx->rest -= p - b->pos; | |
| 3525 ctx->frame_state = state; | |
| 3526 b->pos = p; | |
| 3527 | |
| 3528 if (ctx->rest > 0) { | |
| 3529 return NGX_AGAIN; | |
| 3530 } | |
| 3531 | |
| 3532 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3533 "grpc goaway: %ui, stream %ui", | |
| 3534 ctx->error, ctx->stream_id); | |
| 3535 | |
| 3536 ctx->state = ngx_http_grpc_st_start; | |
| 3537 | |
| 3538 return NGX_OK; | |
| 3539 } | |
| 3540 | |
| 3541 | |
| 3542 static ngx_int_t | |
| 3543 ngx_http_grpc_parse_window_update(ngx_http_request_t *r, | |
| 3544 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b) | |
| 3545 { | |
| 3546 u_char ch, *p, *last; | |
| 3547 enum { | |
| 3548 sw_start = 0, | |
| 3549 sw_size_2, | |
| 3550 sw_size_3, | |
| 3551 sw_size_4 | |
| 3552 } state; | |
| 3553 | |
| 3554 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3555 last = b->last; | |
| 3556 | |
| 3557 } else { | |
| 3558 last = b->pos + ctx->rest; | |
| 3559 } | |
| 3560 | |
| 3561 state = ctx->frame_state; | |
| 3562 | |
| 3563 if (state == sw_start) { | |
| 3564 if (ctx->rest != 4) { | |
| 3565 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3566 "upstream sent window update frame " | |
| 3567 "with invalid length: %uz", | |
| 3568 ctx->rest); | |
| 3569 return NGX_ERROR; | |
| 3570 } | |
| 3571 } | |
| 3572 | |
| 3573 for (p = b->pos; p < last; p++) { | |
| 3574 ch = *p; | |
| 3575 | |
| 3576 #if 0 | |
| 3577 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3578 "grpc window update byte: %02Xd s:%d", ch, state); | |
| 3579 #endif | |
| 3580 | |
| 3581 switch (state) { | |
| 3582 | |
| 3583 case sw_start: | |
| 3584 ctx->window_update = (ch & 0x7f) << 24; | |
| 3585 state = sw_size_2; | |
| 3586 break; | |
| 3587 | |
| 3588 case sw_size_2: | |
| 3589 ctx->window_update |= ch << 16; | |
| 3590 state = sw_size_3; | |
| 3591 break; | |
| 3592 | |
| 3593 case sw_size_3: | |
| 3594 ctx->window_update |= ch << 8; | |
| 3595 state = sw_size_4; | |
| 3596 break; | |
| 3597 | |
| 3598 case sw_size_4: | |
| 3599 ctx->window_update |= ch; | |
| 3600 state = sw_start; | |
| 3601 break; | |
| 3602 } | |
| 3603 } | |
| 3604 | |
| 3605 ctx->rest -= p - b->pos; | |
| 3606 ctx->frame_state = state; | |
| 3607 b->pos = p; | |
| 3608 | |
| 3609 if (ctx->rest > 0) { | |
| 3610 return NGX_AGAIN; | |
| 3611 } | |
| 3612 | |
| 3613 ctx->state = ngx_http_grpc_st_start; | |
| 3614 | |
| 3615 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3616 "grpc window update: %ui", ctx->window_update); | |
| 3617 | |
| 3618 if (ctx->stream_id) { | |
| 3619 | |
| 3620 if (ctx->window_update > (size_t) NGX_HTTP_V2_MAX_WINDOW | |
| 3621 - ctx->send_window) | |
| 3622 { | |
| 3623 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3624 "upstream sent too large window update"); | |
| 3625 return NGX_ERROR; | |
| 3626 } | |
| 3627 | |
| 3628 ctx->send_window += ctx->window_update; | |
| 3629 | |
| 3630 } else { | |
| 3631 | |
| 3632 if (ctx->window_update > NGX_HTTP_V2_MAX_WINDOW | |
| 3633 - ctx->connection->send_window) | |
| 3634 { | |
| 3635 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3636 "upstream sent too large window update"); | |
| 3637 return NGX_ERROR; | |
| 3638 } | |
| 3639 | |
| 3640 ctx->connection->send_window += ctx->window_update; | |
| 3641 } | |
| 3642 | |
| 3643 return NGX_OK; | |
| 3644 } | |
| 3645 | |
| 3646 | |
| 3647 static ngx_int_t | |
| 3648 ngx_http_grpc_parse_settings(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 3649 ngx_buf_t *b) | |
| 3650 { | |
| 3651 u_char ch, *p, *last; | |
| 3652 ssize_t window_update; | |
| 3653 enum { | |
| 3654 sw_start = 0, | |
| 3655 sw_id, | |
| 3656 sw_id_2, | |
| 3657 sw_value, | |
| 3658 sw_value_2, | |
| 3659 sw_value_3, | |
| 3660 sw_value_4 | |
| 3661 } state; | |
| 3662 | |
| 3663 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3664 last = b->last; | |
| 3665 | |
| 3666 } else { | |
| 3667 last = b->pos + ctx->rest; | |
| 3668 } | |
| 3669 | |
| 3670 state = ctx->frame_state; | |
| 3671 | |
| 3672 if (state == sw_start) { | |
| 3673 | |
| 3674 if (ctx->stream_id) { | |
| 3675 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3676 "upstream sent settings frame " | |
| 3677 "with non-zero stream id: %ui", | |
| 3678 ctx->stream_id); | |
| 3679 return NGX_ERROR; | |
| 3680 } | |
| 3681 | |
| 3682 if (ctx->flags & NGX_HTTP_V2_ACK_FLAG) { | |
| 3683 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3684 "grpc settings ack"); | |
| 3685 | |
| 3686 if (ctx->rest != 0) { | |
| 3687 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3688 "upstream sent settings frame " | |
| 3689 "with ack flag and non-zero length: %uz", | |
| 3690 ctx->rest); | |
| 3691 return NGX_ERROR; | |
| 3692 } | |
| 3693 | |
| 3694 ctx->state = ngx_http_grpc_st_start; | |
| 3695 | |
| 3696 return NGX_OK; | |
| 3697 } | |
| 3698 | |
| 3699 if (ctx->rest % 6 != 0) { | |
| 3700 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3701 "upstream sent settings frame " | |
| 3702 "with invalid length: %uz", | |
| 3703 ctx->rest); | |
| 3704 return NGX_ERROR; | |
| 3705 } | |
|
7379
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3706 |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3707 if (ctx->free == NULL && ctx->settings++ > 1000) { |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3708 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3709 "upstream sent too many settings frames"); |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3710 return NGX_ERROR; |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3711 } |
| 7233 | 3712 } |
| 3713 | |
| 3714 for (p = b->pos; p < last; p++) { | |
| 3715 ch = *p; | |
| 3716 | |
| 3717 #if 0 | |
| 3718 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3719 "grpc settings byte: %02Xd s:%d", ch, state); | |
| 3720 #endif | |
| 3721 | |
| 3722 switch (state) { | |
| 3723 | |
| 3724 case sw_start: | |
| 3725 case sw_id: | |
| 3726 ctx->setting_id = ch << 8; | |
| 3727 state = sw_id_2; | |
| 3728 break; | |
| 3729 | |
| 3730 case sw_id_2: | |
| 3731 ctx->setting_id |= ch; | |
| 3732 state = sw_value; | |
| 3733 break; | |
| 3734 | |
| 3735 case sw_value: | |
|
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3736 ctx->setting_value = (ngx_uint_t) ch << 24; |
| 7233 | 3737 state = sw_value_2; |
| 3738 break; | |
| 3739 | |
| 3740 case sw_value_2: | |
| 3741 ctx->setting_value |= ch << 16; | |
| 3742 state = sw_value_3; | |
| 3743 break; | |
| 3744 | |
| 3745 case sw_value_3: | |
| 3746 ctx->setting_value |= ch << 8; | |
| 3747 state = sw_value_4; | |
| 3748 break; | |
| 3749 | |
| 3750 case sw_value_4: | |
| 3751 ctx->setting_value |= ch; | |
| 3752 state = sw_id; | |
| 3753 | |
| 3754 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3755 "grpc setting: %ui %ui", | |
| 3756 ctx->setting_id, ctx->setting_value); | |
| 3757 | |
| 3758 /* | |
| 3759 * The following settings are defined by the protocol: | |
| 3760 * | |
| 3761 * SETTINGS_HEADER_TABLE_SIZE, SETTINGS_ENABLE_PUSH, | |
| 3762 * SETTINGS_MAX_CONCURRENT_STREAMS, SETTINGS_INITIAL_WINDOW_SIZE, | |
| 3763 * SETTINGS_MAX_FRAME_SIZE, SETTINGS_MAX_HEADER_LIST_SIZE | |
| 3764 * | |
| 3765 * Only SETTINGS_INITIAL_WINDOW_SIZE seems to be needed in | |
| 3766 * a simple client. | |
| 3767 */ | |
| 3768 | |
| 3769 if (ctx->setting_id == 0x04) { | |
| 3770 /* SETTINGS_INITIAL_WINDOW_SIZE */ | |
| 3771 | |
| 3772 if (ctx->setting_value > NGX_HTTP_V2_MAX_WINDOW) { | |
| 3773 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3774 "upstream sent settings frame " | |
| 3775 "with too large initial window size: %ui", | |
| 3776 ctx->setting_value); | |
| 3777 return NGX_ERROR; | |
| 3778 } | |
| 3779 | |
| 3780 window_update = ctx->setting_value | |
| 3781 - ctx->connection->init_window; | |
| 3782 ctx->connection->init_window = ctx->setting_value; | |
| 3783 | |
| 3784 if (ctx->send_window > 0 | |
| 3785 && window_update > (ssize_t) NGX_HTTP_V2_MAX_WINDOW | |
| 3786 - ctx->send_window) | |
| 3787 { | |
| 3788 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3789 "upstream sent settings frame " | |
| 3790 "with too large initial window size: %ui", | |
| 3791 ctx->setting_value); | |
| 3792 return NGX_ERROR; | |
| 3793 } | |
| 3794 | |
| 3795 ctx->send_window += window_update; | |
| 3796 } | |
| 3797 | |
| 3798 break; | |
| 3799 } | |
| 3800 } | |
| 3801 | |
| 3802 ctx->rest -= p - b->pos; | |
| 3803 ctx->frame_state = state; | |
| 3804 b->pos = p; | |
| 3805 | |
| 3806 if (ctx->rest > 0) { | |
| 3807 return NGX_AGAIN; | |
| 3808 } | |
| 3809 | |
| 3810 ctx->state = ngx_http_grpc_st_start; | |
| 3811 | |
| 3812 return ngx_http_grpc_send_settings_ack(r, ctx); | |
| 3813 } | |
| 3814 | |
| 3815 | |
| 3816 static ngx_int_t | |
| 3817 ngx_http_grpc_parse_ping(ngx_http_request_t *r, | |
| 3818 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b) | |
| 3819 { | |
| 3820 u_char ch, *p, *last; | |
| 3821 enum { | |
| 3822 sw_start = 0, | |
| 3823 sw_data_2, | |
| 3824 sw_data_3, | |
| 3825 sw_data_4, | |
| 3826 sw_data_5, | |
| 3827 sw_data_6, | |
| 3828 sw_data_7, | |
| 3829 sw_data_8 | |
| 3830 } state; | |
| 3831 | |
| 3832 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3833 last = b->last; | |
| 3834 | |
| 3835 } else { | |
| 3836 last = b->pos + ctx->rest; | |
| 3837 } | |
| 3838 | |
| 3839 state = ctx->frame_state; | |
| 3840 | |
| 3841 if (state == sw_start) { | |
| 3842 | |
| 3843 if (ctx->stream_id) { | |
| 3844 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3845 "upstream sent ping frame " | |
| 3846 "with non-zero stream id: %ui", | |
| 3847 ctx->stream_id); | |
| 3848 return NGX_ERROR; | |
| 3849 } | |
| 3850 | |
| 3851 if (ctx->rest != 8) { | |
| 3852 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3853 "upstream sent ping frame " | |
| 3854 "with invalid length: %uz", | |
| 3855 ctx->rest); | |
| 3856 return NGX_ERROR; | |
| 3857 } | |
| 3858 | |
| 3859 if (ctx->flags & NGX_HTTP_V2_ACK_FLAG) { | |
| 3860 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3861 "upstream sent ping frame with ack flag"); | |
| 3862 return NGX_ERROR; | |
| 3863 } | |
|
7379
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3864 |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3865 if (ctx->free == NULL && ctx->pings++ > 1000) { |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3866 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3867 "upstream sent too many ping frames"); |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3868 return NGX_ERROR; |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3869 } |
| 7233 | 3870 } |
| 3871 | |
| 3872 for (p = b->pos; p < last; p++) { | |
| 3873 ch = *p; | |
| 3874 | |
| 3875 #if 0 | |
| 3876 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3877 "grpc ping byte: %02Xd s:%d", ch, state); | |
| 3878 #endif | |
| 3879 | |
| 3880 if (state < sw_data_8) { | |
| 3881 ctx->ping_data[state] = ch; | |
| 3882 state++; | |
| 3883 | |
| 3884 } else { | |
| 3885 ctx->ping_data[7] = ch; | |
| 3886 state = sw_start; | |
| 3887 | |
| 3888 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3889 "grpc ping"); | |
| 3890 } | |
| 3891 } | |
| 3892 | |
| 3893 ctx->rest -= p - b->pos; | |
| 3894 ctx->frame_state = state; | |
| 3895 b->pos = p; | |
| 3896 | |
| 3897 if (ctx->rest > 0) { | |
| 3898 return NGX_AGAIN; | |
| 3899 } | |
| 3900 | |
| 3901 ctx->state = ngx_http_grpc_st_start; | |
| 3902 | |
| 3903 return ngx_http_grpc_send_ping_ack(r, ctx); | |
| 3904 } | |
| 3905 | |
| 3906 | |
| 3907 static ngx_int_t | |
| 3908 ngx_http_grpc_send_settings_ack(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
| 3909 { | |
| 3910 ngx_chain_t *cl, **ll; | |
| 3911 ngx_http_grpc_frame_t *f; | |
| 3912 | |
| 3913 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3914 "grpc send settings ack"); | |
| 3915 | |
| 3916 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
| 3917 ll = &cl->next; | |
| 3918 } | |
| 3919 | |
| 3920 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 3921 if (cl == NULL) { | |
| 3922 return NGX_ERROR; | |
| 3923 } | |
| 3924 | |
| 3925 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 3926 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 3927 | |
| 3928 f->length_0 = 0; | |
| 3929 f->length_1 = 0; | |
| 3930 f->length_2 = 0; | |
| 3931 f->type = NGX_HTTP_V2_SETTINGS_FRAME; | |
| 3932 f->flags = NGX_HTTP_V2_ACK_FLAG; | |
| 3933 f->stream_id_0 = 0; | |
| 3934 f->stream_id_1 = 0; | |
| 3935 f->stream_id_2 = 0; | |
| 3936 f->stream_id_3 = 0; | |
| 3937 | |
| 3938 *ll = cl; | |
| 3939 | |
| 3940 return NGX_OK; | |
| 3941 } | |
| 3942 | |
| 3943 | |
| 3944 static ngx_int_t | |
| 3945 ngx_http_grpc_send_ping_ack(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
| 3946 { | |
| 3947 ngx_chain_t *cl, **ll; | |
| 3948 ngx_http_grpc_frame_t *f; | |
| 3949 | |
| 3950 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3951 "grpc send ping ack"); | |
| 3952 | |
| 3953 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
| 3954 ll = &cl->next; | |
| 3955 } | |
| 3956 | |
| 3957 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 3958 if (cl == NULL) { | |
| 3959 return NGX_ERROR; | |
| 3960 } | |
| 3961 | |
| 3962 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 3963 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 3964 | |
| 3965 f->length_0 = 0; | |
| 3966 f->length_1 = 0; | |
| 3967 f->length_2 = 8; | |
| 3968 f->type = NGX_HTTP_V2_PING_FRAME; | |
| 3969 f->flags = NGX_HTTP_V2_ACK_FLAG; | |
| 3970 f->stream_id_0 = 0; | |
| 3971 f->stream_id_1 = 0; | |
| 3972 f->stream_id_2 = 0; | |
| 3973 f->stream_id_3 = 0; | |
| 3974 | |
| 3975 cl->buf->last = ngx_copy(cl->buf->last, ctx->ping_data, 8); | |
| 3976 | |
| 3977 *ll = cl; | |
| 3978 | |
| 3979 return NGX_OK; | |
| 3980 } | |
| 3981 | |
| 3982 | |
| 3983 static ngx_int_t | |
| 3984 ngx_http_grpc_send_window_update(ngx_http_request_t *r, | |
| 3985 ngx_http_grpc_ctx_t *ctx) | |
| 3986 { | |
| 3987 size_t n; | |
| 3988 ngx_chain_t *cl, **ll; | |
| 3989 ngx_http_grpc_frame_t *f; | |
| 3990 | |
| 3991 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3992 "grpc send window update: %uz %uz", | |
| 3993 ctx->connection->recv_window, ctx->recv_window); | |
| 3994 | |
| 3995 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
| 3996 ll = &cl->next; | |
| 3997 } | |
| 3998 | |
| 3999 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 4000 if (cl == NULL) { | |
| 4001 return NGX_ERROR; | |
| 4002 } | |
| 4003 | |
| 4004 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 4005 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 4006 | |
| 4007 f->length_0 = 0; | |
| 4008 f->length_1 = 0; | |
| 4009 f->length_2 = 4; | |
| 4010 f->type = NGX_HTTP_V2_WINDOW_UPDATE_FRAME; | |
| 4011 f->flags = 0; | |
| 4012 f->stream_id_0 = 0; | |
| 4013 f->stream_id_1 = 0; | |
| 4014 f->stream_id_2 = 0; | |
| 4015 f->stream_id_3 = 0; | |
| 4016 | |
| 4017 n = NGX_HTTP_V2_MAX_WINDOW - ctx->connection->recv_window; | |
| 4018 ctx->connection->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4019 | |
| 4020 *cl->buf->last++ = (u_char) ((n >> 24) & 0xff); | |
| 4021 *cl->buf->last++ = (u_char) ((n >> 16) & 0xff); | |
| 4022 *cl->buf->last++ = (u_char) ((n >> 8) & 0xff); | |
| 4023 *cl->buf->last++ = (u_char) (n & 0xff); | |
| 4024 | |
| 4025 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 4026 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 4027 | |
| 4028 f->length_0 = 0; | |
| 4029 f->length_1 = 0; | |
| 4030 f->length_2 = 4; | |
| 4031 f->type = NGX_HTTP_V2_WINDOW_UPDATE_FRAME; | |
| 4032 f->flags = 0; | |
| 4033 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 4034 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 4035 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 4036 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 4037 | |
| 4038 n = NGX_HTTP_V2_MAX_WINDOW - ctx->recv_window; | |
| 4039 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4040 | |
| 4041 *cl->buf->last++ = (u_char) ((n >> 24) & 0xff); | |
| 4042 *cl->buf->last++ = (u_char) ((n >> 16) & 0xff); | |
| 4043 *cl->buf->last++ = (u_char) ((n >> 8) & 0xff); | |
| 4044 *cl->buf->last++ = (u_char) (n & 0xff); | |
| 4045 | |
| 4046 *ll = cl; | |
| 4047 | |
| 4048 return NGX_OK; | |
| 4049 } | |
| 4050 | |
| 4051 | |
| 4052 static ngx_chain_t * | |
| 4053 ngx_http_grpc_get_buf(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
| 4054 { | |
|
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4055 u_char *start; |
| 7233 | 4056 ngx_buf_t *b; |
| 4057 ngx_chain_t *cl; | |
| 4058 | |
| 4059 cl = ngx_chain_get_free_buf(r->pool, &ctx->free); | |
| 4060 if (cl == NULL) { | |
| 4061 return NULL; | |
| 4062 } | |
| 4063 | |
| 4064 b = cl->buf; | |
|
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4065 start = b->start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4066 |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4067 if (start == NULL) { |
| 7233 | 4068 |
| 4069 /* | |
| 4070 * each buffer is large enough to hold two window update | |
| 4071 * frames in a row | |
| 4072 */ | |
| 4073 | |
|
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4074 start = ngx_palloc(r->pool, 2 * sizeof(ngx_http_grpc_frame_t) + 8); |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4075 if (start == NULL) { |
| 7233 | 4076 return NULL; |
| 4077 } | |
| 4078 | |
| 4079 } | |
| 4080 | |
|
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4081 ngx_memzero(b, sizeof(ngx_buf_t)); |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4082 |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4083 b->start = start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4084 b->pos = start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4085 b->last = start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4086 b->end = start + 2 * sizeof(ngx_http_grpc_frame_t) + 8; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4087 |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4088 b->tag = (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4089 b->temporary = 1; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4090 b->flush = 1; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4091 |
| 7233 | 4092 return cl; |
| 4093 } | |
| 4094 | |
| 4095 | |
| 4096 static ngx_http_grpc_ctx_t * | |
| 4097 ngx_http_grpc_get_ctx(ngx_http_request_t *r) | |
| 4098 { | |
| 4099 ngx_http_grpc_ctx_t *ctx; | |
| 4100 ngx_http_upstream_t *u; | |
| 4101 | |
| 4102 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); | |
| 4103 | |
| 4104 if (ctx->connection == NULL) { | |
| 4105 u = r->upstream; | |
| 4106 | |
| 4107 if (ngx_http_grpc_get_connection_data(r, ctx, &u->peer) != NGX_OK) { | |
| 4108 return NULL; | |
| 4109 } | |
| 4110 } | |
| 4111 | |
| 4112 return ctx; | |
| 4113 } | |
| 4114 | |
| 4115 | |
| 4116 static ngx_int_t | |
| 4117 ngx_http_grpc_get_connection_data(ngx_http_request_t *r, | |
| 4118 ngx_http_grpc_ctx_t *ctx, ngx_peer_connection_t *pc) | |
| 4119 { | |
| 4120 ngx_connection_t *c; | |
| 4121 ngx_pool_cleanup_t *cln; | |
| 4122 | |
| 4123 c = pc->connection; | |
| 4124 | |
| 4125 if (pc->cached) { | |
| 4126 | |
| 4127 /* | |
| 4128 * for cached connections, connection data can be found | |
| 4129 * in the cleanup handler | |
| 4130 */ | |
| 4131 | |
| 4132 for (cln = c->pool->cleanup; cln; cln = cln->next) { | |
| 4133 if (cln->handler == ngx_http_grpc_cleanup) { | |
| 4134 ctx->connection = cln->data; | |
| 4135 break; | |
| 4136 } | |
| 4137 } | |
| 4138 | |
| 4139 if (ctx->connection == NULL) { | |
| 4140 ngx_log_error(NGX_LOG_ERR, c->log, 0, | |
| 4141 "no connection data found for " | |
| 4142 "keepalive http2 connection"); | |
| 4143 return NGX_ERROR; | |
| 4144 } | |
| 4145 | |
| 4146 ctx->send_window = ctx->connection->init_window; | |
| 4147 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4148 | |
| 4149 ctx->connection->last_stream_id += 2; | |
| 4150 ctx->id = ctx->connection->last_stream_id; | |
| 4151 | |
| 4152 return NGX_OK; | |
| 4153 } | |
| 4154 | |
| 4155 cln = ngx_pool_cleanup_add(c->pool, sizeof(ngx_http_grpc_conn_t)); | |
| 4156 if (cln == NULL) { | |
| 4157 return NGX_ERROR; | |
| 4158 } | |
| 4159 | |
| 4160 cln->handler = ngx_http_grpc_cleanup; | |
| 4161 ctx->connection = cln->data; | |
| 4162 | |
| 4163 ctx->connection->init_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
| 4164 ctx->connection->send_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
| 4165 ctx->connection->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4166 | |
| 4167 ctx->send_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
| 4168 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4169 | |
| 4170 ctx->id = 1; | |
| 4171 ctx->connection->last_stream_id = 1; | |
| 4172 | |
| 4173 return NGX_OK; | |
| 4174 } | |
| 4175 | |
| 4176 | |
| 4177 static void | |
| 4178 ngx_http_grpc_cleanup(void *data) | |
| 4179 { | |
| 4180 #if 0 | |
| 4181 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 4182 "grpc cleanup"); | |
| 4183 #endif | |
| 4184 return; | |
| 4185 } | |
| 4186 | |
| 4187 | |
| 4188 static void | |
| 4189 ngx_http_grpc_abort_request(ngx_http_request_t *r) | |
| 4190 { | |
| 4191 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 4192 "abort grpc request"); | |
| 4193 return; | |
| 4194 } | |
| 4195 | |
| 4196 | |
| 4197 static void | |
| 4198 ngx_http_grpc_finalize_request(ngx_http_request_t *r, ngx_int_t rc) | |
| 4199 { | |
| 4200 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 4201 "finalize grpc request"); | |
| 4202 return; | |
| 4203 } | |
| 4204 | |
| 4205 | |
|
7234
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4206 static ngx_int_t |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4207 ngx_http_grpc_internal_trailers_variable(ngx_http_request_t *r, |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4208 ngx_http_variable_value_t *v, uintptr_t data) |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4209 { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4210 ngx_table_elt_t *te; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4211 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4212 te = r->headers_in.te; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4213 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4214 if (te == NULL) { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4215 v->not_found = 1; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4216 return NGX_OK; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4217 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4218 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4219 if (ngx_strlcasestrn(te->value.data, te->value.data + te->value.len, |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4220 (u_char *) "trailers", 8 - 1) |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4221 == NULL) |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4222 { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4223 v->not_found = 1; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4224 return NGX_OK; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4225 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4226 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4227 v->valid = 1; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4228 v->no_cacheable = 0; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4229 v->not_found = 0; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4230 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4231 v->data = (u_char *) "trailers"; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4232 v->len = sizeof("trailers") - 1; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4233 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4234 return NGX_OK; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4235 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4236 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4237 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4238 static ngx_int_t |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4239 ngx_http_grpc_add_variables(ngx_conf_t *cf) |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4240 { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4241 ngx_http_variable_t *var, *v; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4242 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4243 for (v = ngx_http_grpc_vars; v->name.len; v++) { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4244 var = ngx_http_add_variable(cf, &v->name, v->flags); |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4245 if (var == NULL) { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4246 return NGX_ERROR; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4247 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4248 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4249 var->get_handler = v->get_handler; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4250 var->data = v->data; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4251 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4252 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4253 return NGX_OK; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4254 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4255 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4256 |
| 7233 | 4257 static void * |
| 4258 ngx_http_grpc_create_loc_conf(ngx_conf_t *cf) | |
| 4259 { | |
| 4260 ngx_http_grpc_loc_conf_t *conf; | |
| 4261 | |
| 4262 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_grpc_loc_conf_t)); | |
| 4263 if (conf == NULL) { | |
| 4264 return NULL; | |
| 4265 } | |
| 4266 | |
| 4267 /* | |
| 4268 * set by ngx_pcalloc(): | |
| 4269 * | |
| 4270 * conf->upstream.ignore_headers = 0; | |
| 4271 * conf->upstream.next_upstream = 0; | |
| 4272 * conf->upstream.hide_headers_hash = { NULL, 0 }; | |
| 4273 * conf->upstream.ssl_name = NULL; | |
| 4274 * | |
| 4275 * conf->headers_source = NULL; | |
| 4276 * conf->headers.lengths = NULL; | |
| 4277 * conf->headers.values = NULL; | |
| 4278 * conf->headers.hash = { NULL, 0 }; | |
| 4279 * conf->host = { 0, NULL }; | |
| 4280 * conf->host_set = 0; | |
| 4281 * conf->ssl = 0; | |
| 4282 * conf->ssl_protocols = 0; | |
| 4283 * conf->ssl_ciphers = { 0, NULL }; | |
| 4284 * conf->ssl_trusted_certificate = { 0, NULL }; | |
| 4285 * conf->ssl_crl = { 0, NULL }; | |
| 4286 * conf->ssl_certificate = { 0, NULL }; | |
| 4287 * conf->ssl_certificate_key = { 0, NULL }; | |
| 4288 */ | |
| 4289 | |
| 4290 conf->upstream.local = NGX_CONF_UNSET_PTR; | |
|
7371
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4291 conf->upstream.socket_keepalive = NGX_CONF_UNSET; |
| 7233 | 4292 conf->upstream.next_upstream_tries = NGX_CONF_UNSET_UINT; |
| 4293 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC; | |
| 4294 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC; | |
| 4295 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC; | |
| 4296 conf->upstream.next_upstream_timeout = NGX_CONF_UNSET_MSEC; | |
| 4297 | |
| 4298 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE; | |
| 4299 | |
| 4300 conf->upstream.hide_headers = NGX_CONF_UNSET_PTR; | |
| 4301 conf->upstream.pass_headers = NGX_CONF_UNSET_PTR; | |
| 4302 | |
| 4303 conf->upstream.intercept_errors = NGX_CONF_UNSET; | |
| 4304 | |
| 4305 #if (NGX_HTTP_SSL) | |
| 4306 conf->upstream.ssl_session_reuse = NGX_CONF_UNSET; | |
| 4307 conf->upstream.ssl_server_name = NGX_CONF_UNSET; | |
| 4308 conf->upstream.ssl_verify = NGX_CONF_UNSET; | |
| 4309 conf->ssl_verify_depth = NGX_CONF_UNSET_UINT; | |
| 4310 conf->ssl_passwords = NGX_CONF_UNSET_PTR; | |
| 4311 #endif | |
| 4312 | |
| 4313 /* the hardcoded values */ | |
| 4314 conf->upstream.cyclic_temp_file = 0; | |
| 4315 conf->upstream.buffering = 0; | |
| 4316 conf->upstream.ignore_client_abort = 0; | |
| 4317 conf->upstream.send_lowat = 0; | |
| 4318 conf->upstream.bufs.num = 0; | |
| 4319 conf->upstream.busy_buffers_size = 0; | |
| 4320 conf->upstream.max_temp_file_size = 0; | |
| 4321 conf->upstream.temp_file_write_size = 0; | |
| 4322 conf->upstream.pass_request_headers = 1; | |
| 4323 conf->upstream.pass_request_body = 1; | |
| 4324 conf->upstream.force_ranges = 0; | |
| 4325 conf->upstream.pass_trailers = 1; | |
| 4326 conf->upstream.preserve_output = 1; | |
| 4327 | |
| 4328 ngx_str_set(&conf->upstream.module, "grpc"); | |
| 4329 | |
| 4330 return conf; | |
| 4331 } | |
| 4332 | |
| 4333 | |
| 4334 static char * | |
| 4335 ngx_http_grpc_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 4336 { | |
| 4337 ngx_http_grpc_loc_conf_t *prev = parent; | |
| 4338 ngx_http_grpc_loc_conf_t *conf = child; | |
| 4339 | |
| 4340 ngx_int_t rc; | |
| 4341 ngx_hash_init_t hash; | |
| 4342 ngx_http_core_loc_conf_t *clcf; | |
| 4343 | |
| 4344 ngx_conf_merge_ptr_value(conf->upstream.local, | |
| 4345 prev->upstream.local, NULL); | |
| 4346 | |
|
7371
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4347 ngx_conf_merge_value(conf->upstream.socket_keepalive, |
|
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4348 prev->upstream.socket_keepalive, 0); |
|
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4349 |
| 7233 | 4350 ngx_conf_merge_uint_value(conf->upstream.next_upstream_tries, |
| 4351 prev->upstream.next_upstream_tries, 0); | |
| 4352 | |
| 4353 ngx_conf_merge_msec_value(conf->upstream.connect_timeout, | |
| 4354 prev->upstream.connect_timeout, 60000); | |
| 4355 | |
| 4356 ngx_conf_merge_msec_value(conf->upstream.send_timeout, | |
| 4357 prev->upstream.send_timeout, 60000); | |
| 4358 | |
| 4359 ngx_conf_merge_msec_value(conf->upstream.read_timeout, | |
| 4360 prev->upstream.read_timeout, 60000); | |
| 4361 | |
| 4362 ngx_conf_merge_msec_value(conf->upstream.next_upstream_timeout, | |
| 4363 prev->upstream.next_upstream_timeout, 0); | |
| 4364 | |
| 4365 ngx_conf_merge_size_value(conf->upstream.buffer_size, | |
| 4366 prev->upstream.buffer_size, | |
| 4367 (size_t) ngx_pagesize); | |
| 4368 | |
| 4369 ngx_conf_merge_bitmask_value(conf->upstream.ignore_headers, | |
| 4370 prev->upstream.ignore_headers, | |
| 4371 NGX_CONF_BITMASK_SET); | |
| 4372 | |
| 4373 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream, | |
| 4374 prev->upstream.next_upstream, | |
| 4375 (NGX_CONF_BITMASK_SET | |
| 4376 |NGX_HTTP_UPSTREAM_FT_ERROR | |
| 4377 |NGX_HTTP_UPSTREAM_FT_TIMEOUT)); | |
| 4378 | |
| 4379 if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) { | |
| 4380 conf->upstream.next_upstream = NGX_CONF_BITMASK_SET | |
| 4381 |NGX_HTTP_UPSTREAM_FT_OFF; | |
| 4382 } | |
| 4383 | |
| 4384 ngx_conf_merge_value(conf->upstream.intercept_errors, | |
| 4385 prev->upstream.intercept_errors, 0); | |
| 4386 | |
| 4387 #if (NGX_HTTP_SSL) | |
| 4388 | |
| 4389 ngx_conf_merge_value(conf->upstream.ssl_session_reuse, | |
| 4390 prev->upstream.ssl_session_reuse, 1); | |
| 4391 | |
| 4392 ngx_conf_merge_bitmask_value(conf->ssl_protocols, prev->ssl_protocols, | |
| 4393 (NGX_CONF_BITMASK_SET|NGX_SSL_TLSv1 | |
| 4394 |NGX_SSL_TLSv1_1|NGX_SSL_TLSv1_2)); | |
| 4395 | |
| 4396 ngx_conf_merge_str_value(conf->ssl_ciphers, prev->ssl_ciphers, | |
| 4397 "DEFAULT"); | |
| 4398 | |
| 4399 if (conf->upstream.ssl_name == NULL) { | |
| 4400 conf->upstream.ssl_name = prev->upstream.ssl_name; | |
| 4401 } | |
| 4402 | |
| 4403 ngx_conf_merge_value(conf->upstream.ssl_server_name, | |
| 4404 prev->upstream.ssl_server_name, 0); | |
| 4405 ngx_conf_merge_value(conf->upstream.ssl_verify, | |
| 4406 prev->upstream.ssl_verify, 0); | |
| 4407 ngx_conf_merge_uint_value(conf->ssl_verify_depth, | |
| 4408 prev->ssl_verify_depth, 1); | |
| 4409 ngx_conf_merge_str_value(conf->ssl_trusted_certificate, | |
| 4410 prev->ssl_trusted_certificate, ""); | |
| 4411 ngx_conf_merge_str_value(conf->ssl_crl, prev->ssl_crl, ""); | |
| 4412 | |
| 4413 ngx_conf_merge_str_value(conf->ssl_certificate, | |
| 4414 prev->ssl_certificate, ""); | |
| 4415 ngx_conf_merge_str_value(conf->ssl_certificate_key, | |
| 4416 prev->ssl_certificate_key, ""); | |
| 4417 ngx_conf_merge_ptr_value(conf->ssl_passwords, prev->ssl_passwords, NULL); | |
| 4418 | |
| 4419 if (conf->ssl && ngx_http_grpc_set_ssl(cf, conf) != NGX_OK) { | |
| 4420 return NGX_CONF_ERROR; | |
| 4421 } | |
| 4422 | |
| 4423 #endif | |
| 4424 | |
| 4425 hash.max_size = 512; | |
| 4426 hash.bucket_size = ngx_align(64, ngx_cacheline_size); | |
| 4427 hash.name = "grpc_headers_hash"; | |
| 4428 | |
| 4429 if (ngx_http_upstream_hide_headers_hash(cf, &conf->upstream, | |
| 4430 &prev->upstream, ngx_http_grpc_hide_headers, &hash) | |
| 4431 != NGX_OK) | |
| 4432 { | |
| 4433 return NGX_CONF_ERROR; | |
| 4434 } | |
| 4435 | |
| 4436 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
| 4437 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4438 if (clcf->noname |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4439 && conf->upstream.upstream == NULL && conf->grpc_lengths == NULL) |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4440 { |
| 7233 | 4441 conf->upstream.upstream = prev->upstream.upstream; |
| 4442 conf->host = prev->host; | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4443 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4444 conf->grpc_lengths = prev->grpc_lengths; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4445 conf->grpc_values = prev->grpc_values; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4446 |
| 7233 | 4447 #if (NGX_HTTP_SSL) |
| 4448 conf->upstream.ssl = prev->upstream.ssl; | |
| 4449 #endif | |
| 4450 } | |
| 4451 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4452 if (clcf->lmt_excpt && clcf->handler == NULL |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4453 && (conf->upstream.upstream || conf->grpc_lengths)) |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4454 { |
| 7233 | 4455 clcf->handler = ngx_http_grpc_handler; |
| 4456 } | |
| 4457 | |
| 4458 if (conf->headers_source == NULL) { | |
| 4459 conf->headers = prev->headers; | |
| 4460 conf->headers_source = prev->headers_source; | |
| 4461 conf->host_set = prev->host_set; | |
| 4462 } | |
| 4463 | |
| 4464 rc = ngx_http_grpc_init_headers(cf, conf, &conf->headers, | |
| 4465 ngx_http_grpc_headers); | |
| 4466 if (rc != NGX_OK) { | |
| 4467 return NGX_CONF_ERROR; | |
| 4468 } | |
| 4469 | |
| 4470 /* | |
| 4471 * special handling to preserve conf->headers in the "http" section | |
| 4472 * to inherit it to all servers | |
| 4473 */ | |
| 4474 | |
| 4475 if (prev->headers.hash.buckets == NULL | |
| 4476 && conf->headers_source == prev->headers_source) | |
| 4477 { | |
| 4478 prev->headers = conf->headers; | |
| 4479 prev->host_set = conf->host_set; | |
| 4480 } | |
| 4481 | |
| 4482 return NGX_CONF_OK; | |
| 4483 } | |
| 4484 | |
| 4485 | |
| 4486 static ngx_int_t | |
| 4487 ngx_http_grpc_init_headers(ngx_conf_t *cf, ngx_http_grpc_loc_conf_t *conf, | |
| 4488 ngx_http_grpc_headers_t *headers, ngx_keyval_t *default_headers) | |
| 4489 { | |
| 4490 u_char *p; | |
| 4491 size_t size; | |
| 4492 uintptr_t *code; | |
| 4493 ngx_uint_t i; | |
| 4494 ngx_array_t headers_names, headers_merged; | |
| 4495 ngx_keyval_t *src, *s, *h; | |
| 4496 ngx_hash_key_t *hk; | |
| 4497 ngx_hash_init_t hash; | |
| 4498 ngx_http_script_compile_t sc; | |
| 4499 ngx_http_script_copy_code_t *copy; | |
| 4500 | |
| 4501 if (headers->hash.buckets) { | |
| 4502 return NGX_OK; | |
| 4503 } | |
| 4504 | |
| 4505 if (ngx_array_init(&headers_names, cf->temp_pool, 4, sizeof(ngx_hash_key_t)) | |
| 4506 != NGX_OK) | |
| 4507 { | |
| 4508 return NGX_ERROR; | |
| 4509 } | |
| 4510 | |
| 4511 if (ngx_array_init(&headers_merged, cf->temp_pool, 4, sizeof(ngx_keyval_t)) | |
| 4512 != NGX_OK) | |
| 4513 { | |
| 4514 return NGX_ERROR; | |
| 4515 } | |
| 4516 | |
| 4517 headers->lengths = ngx_array_create(cf->pool, 64, 1); | |
| 4518 if (headers->lengths == NULL) { | |
| 4519 return NGX_ERROR; | |
| 4520 } | |
| 4521 | |
| 4522 headers->values = ngx_array_create(cf->pool, 512, 1); | |
| 4523 if (headers->values == NULL) { | |
| 4524 return NGX_ERROR; | |
| 4525 } | |
| 4526 | |
| 4527 if (conf->headers_source) { | |
| 4528 | |
| 4529 src = conf->headers_source->elts; | |
| 4530 for (i = 0; i < conf->headers_source->nelts; i++) { | |
| 4531 | |
| 4532 if (src[i].key.len == 4 | |
| 4533 && ngx_strncasecmp(src[i].key.data, (u_char *) "Host", 4) == 0) | |
| 4534 { | |
| 4535 conf->host_set = 1; | |
| 4536 } | |
| 4537 | |
| 4538 s = ngx_array_push(&headers_merged); | |
| 4539 if (s == NULL) { | |
| 4540 return NGX_ERROR; | |
| 4541 } | |
| 4542 | |
| 4543 *s = src[i]; | |
| 4544 } | |
| 4545 } | |
| 4546 | |
| 4547 h = default_headers; | |
| 4548 | |
| 4549 while (h->key.len) { | |
| 4550 | |
| 4551 src = headers_merged.elts; | |
| 4552 for (i = 0; i < headers_merged.nelts; i++) { | |
| 4553 if (ngx_strcasecmp(h->key.data, src[i].key.data) == 0) { | |
| 4554 goto next; | |
| 4555 } | |
| 4556 } | |
| 4557 | |
| 4558 s = ngx_array_push(&headers_merged); | |
| 4559 if (s == NULL) { | |
| 4560 return NGX_ERROR; | |
| 4561 } | |
| 4562 | |
| 4563 *s = *h; | |
| 4564 | |
| 4565 next: | |
| 4566 | |
| 4567 h++; | |
| 4568 } | |
| 4569 | |
| 4570 | |
| 4571 src = headers_merged.elts; | |
| 4572 for (i = 0; i < headers_merged.nelts; i++) { | |
| 4573 | |
| 4574 hk = ngx_array_push(&headers_names); | |
| 4575 if (hk == NULL) { | |
| 4576 return NGX_ERROR; | |
| 4577 } | |
| 4578 | |
| 4579 hk->key = src[i].key; | |
| 4580 hk->key_hash = ngx_hash_key_lc(src[i].key.data, src[i].key.len); | |
| 4581 hk->value = (void *) 1; | |
| 4582 | |
| 4583 if (src[i].value.len == 0) { | |
| 4584 continue; | |
| 4585 } | |
| 4586 | |
| 4587 copy = ngx_array_push_n(headers->lengths, | |
| 4588 sizeof(ngx_http_script_copy_code_t)); | |
| 4589 if (copy == NULL) { | |
| 4590 return NGX_ERROR; | |
| 4591 } | |
| 4592 | |
|
7271
9e25a5380a21
Silenced -Wcast-function-type warnings (closes #1546).
Sergey Kandaurov <pluknet@nginx.com>
parents:
7249
diff
changeset
|
4593 copy->code = (ngx_http_script_code_pt) (void *) |
|
9e25a5380a21
Silenced -Wcast-function-type warnings (closes #1546).
Sergey Kandaurov <pluknet@nginx.com>
parents:
7249
diff
changeset
|
4594 ngx_http_script_copy_len_code; |
| 7233 | 4595 copy->len = src[i].key.len; |
| 4596 | |
| 4597 size = (sizeof(ngx_http_script_copy_code_t) | |
| 4598 + src[i].key.len + sizeof(uintptr_t) - 1) | |
| 4599 & ~(sizeof(uintptr_t) - 1); | |
| 4600 | |
| 4601 copy = ngx_array_push_n(headers->values, size); | |
| 4602 if (copy == NULL) { | |
| 4603 return NGX_ERROR; | |
| 4604 } | |
| 4605 | |
| 4606 copy->code = ngx_http_script_copy_code; | |
| 4607 copy->len = src[i].key.len; | |
| 4608 | |
| 4609 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t); | |
| 4610 ngx_memcpy(p, src[i].key.data, src[i].key.len); | |
| 4611 | |
| 4612 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
| 4613 | |
| 4614 sc.cf = cf; | |
| 4615 sc.source = &src[i].value; | |
| 4616 sc.flushes = &headers->flushes; | |
| 4617 sc.lengths = &headers->lengths; | |
| 4618 sc.values = &headers->values; | |
| 4619 | |
| 4620 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
| 4621 return NGX_ERROR; | |
| 4622 } | |
| 4623 | |
| 4624 code = ngx_array_push_n(headers->lengths, sizeof(uintptr_t)); | |
| 4625 if (code == NULL) { | |
| 4626 return NGX_ERROR; | |
| 4627 } | |
| 4628 | |
| 4629 *code = (uintptr_t) NULL; | |
| 4630 | |
| 4631 code = ngx_array_push_n(headers->values, sizeof(uintptr_t)); | |
| 4632 if (code == NULL) { | |
| 4633 return NGX_ERROR; | |
| 4634 } | |
| 4635 | |
| 4636 *code = (uintptr_t) NULL; | |
| 4637 } | |
| 4638 | |
| 4639 code = ngx_array_push_n(headers->lengths, sizeof(uintptr_t)); | |
| 4640 if (code == NULL) { | |
| 4641 return NGX_ERROR; | |
| 4642 } | |
| 4643 | |
| 4644 *code = (uintptr_t) NULL; | |
| 4645 | |
| 4646 | |
| 4647 hash.hash = &headers->hash; | |
| 4648 hash.key = ngx_hash_key_lc; | |
| 4649 hash.max_size = 512; | |
| 4650 hash.bucket_size = 64; | |
| 4651 hash.name = "grpc_headers_hash"; | |
| 4652 hash.pool = cf->pool; | |
| 4653 hash.temp_pool = NULL; | |
| 4654 | |
| 4655 return ngx_hash_init(&hash, headers_names.elts, headers_names.nelts); | |
| 4656 } | |
| 4657 | |
| 4658 | |
| 4659 static char * | |
| 4660 ngx_http_grpc_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 4661 { | |
| 4662 ngx_http_grpc_loc_conf_t *glcf = conf; | |
| 4663 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4664 size_t add; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4665 ngx_str_t *value, *url; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4666 ngx_url_t u; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4667 ngx_uint_t n; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4668 ngx_http_core_loc_conf_t *clcf; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4669 ngx_http_script_compile_t sc; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4670 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4671 if (glcf->upstream.upstream || glcf->grpc_lengths) { |
| 7233 | 4672 return "is duplicate"; |
| 4673 } | |
| 4674 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4675 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4676 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4677 clcf->handler = ngx_http_grpc_handler; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4678 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4679 if (clcf->name.len && clcf->name.data[clcf->name.len - 1] == '/') { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4680 clcf->auto_redirect = 1; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4681 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4682 |
| 7233 | 4683 value = cf->args->elts; |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4684 |
| 7233 | 4685 url = &value[1]; |
| 4686 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4687 n = ngx_http_script_variables_count(url); |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4688 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4689 if (n) { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4690 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4691 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4692 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4693 sc.cf = cf; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4694 sc.source = url; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4695 sc.lengths = &glcf->grpc_lengths; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4696 sc.values = &glcf->grpc_values; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4697 sc.variables = n; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4698 sc.complete_lengths = 1; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4699 sc.complete_values = 1; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4700 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4701 if (ngx_http_script_compile(&sc) != NGX_OK) { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4702 return NGX_CONF_ERROR; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4703 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4704 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4705 #if (NGX_HTTP_SSL) |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4706 glcf->ssl = 1; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4707 #endif |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4708 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4709 return NGX_CONF_OK; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4710 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4711 |
| 7233 | 4712 if (ngx_strncasecmp(url->data, (u_char *) "grpc://", 7) == 0) { |
| 4713 add = 7; | |
| 4714 | |
| 4715 } else if (ngx_strncasecmp(url->data, (u_char *) "grpcs://", 8) == 0) { | |
| 4716 | |
| 4717 #if (NGX_HTTP_SSL) | |
| 4718 glcf->ssl = 1; | |
| 4719 | |
| 4720 add = 8; | |
| 4721 #else | |
| 4722 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 4723 "grpcs protocol requires SSL support"); | |
| 4724 return NGX_CONF_ERROR; | |
| 4725 #endif | |
| 4726 | |
| 4727 } else { | |
| 4728 add = 0; | |
| 4729 } | |
| 4730 | |
| 4731 ngx_memzero(&u, sizeof(ngx_url_t)); | |
| 4732 | |
| 4733 u.url.len = url->len - add; | |
| 4734 u.url.data = url->data + add; | |
| 4735 u.no_resolve = 1; | |
| 4736 | |
| 4737 glcf->upstream.upstream = ngx_http_upstream_add(cf, &u, 0); | |
| 4738 if (glcf->upstream.upstream == NULL) { | |
| 4739 return NGX_CONF_ERROR; | |
| 4740 } | |
| 4741 | |
| 4742 if (u.family != AF_UNIX) { | |
| 4743 | |
| 4744 if (u.no_port) { | |
| 4745 glcf->host = u.host; | |
| 4746 | |
| 4747 } else { | |
| 4748 glcf->host.len = u.host.len + 1 + u.port_text.len; | |
| 4749 glcf->host.data = u.host.data; | |
| 4750 } | |
| 4751 | |
| 4752 } else { | |
| 4753 ngx_str_set(&glcf->host, "localhost"); | |
| 4754 } | |
| 4755 | |
| 4756 return NGX_CONF_OK; | |
| 4757 } | |
| 4758 | |
| 4759 | |
| 4760 #if (NGX_HTTP_SSL) | |
| 4761 | |
| 4762 static char * | |
| 4763 ngx_http_grpc_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 4764 { | |
| 4765 ngx_http_grpc_loc_conf_t *glcf = conf; | |
| 4766 | |
| 4767 ngx_str_t *value; | |
| 4768 | |
| 4769 if (glcf->ssl_passwords != NGX_CONF_UNSET_PTR) { | |
| 4770 return "is duplicate"; | |
| 4771 } | |
| 4772 | |
| 4773 value = cf->args->elts; | |
| 4774 | |
| 4775 glcf->ssl_passwords = ngx_ssl_read_password_file(cf, &value[1]); | |
| 4776 | |
| 4777 if (glcf->ssl_passwords == NULL) { | |
| 4778 return NGX_CONF_ERROR; | |
| 4779 } | |
| 4780 | |
| 4781 return NGX_CONF_OK; | |
| 4782 } | |
| 4783 | |
| 4784 | |
| 4785 static ngx_int_t | |
| 4786 ngx_http_grpc_set_ssl(ngx_conf_t *cf, ngx_http_grpc_loc_conf_t *glcf) | |
| 4787 { | |
| 4788 ngx_pool_cleanup_t *cln; | |
| 4789 | |
| 4790 glcf->upstream.ssl = ngx_pcalloc(cf->pool, sizeof(ngx_ssl_t)); | |
| 4791 if (glcf->upstream.ssl == NULL) { | |
| 4792 return NGX_ERROR; | |
| 4793 } | |
| 4794 | |
| 4795 glcf->upstream.ssl->log = cf->log; | |
| 4796 | |
| 4797 if (ngx_ssl_create(glcf->upstream.ssl, glcf->ssl_protocols, NULL) | |
| 4798 != NGX_OK) | |
| 4799 { | |
| 4800 return NGX_ERROR; | |
| 4801 } | |
| 4802 | |
| 4803 cln = ngx_pool_cleanup_add(cf->pool, 0); | |
| 4804 if (cln == NULL) { | |
|
7473
8981dbb12254
SSL: fixed potential leak on memory allocation errors.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7379
diff
changeset
|
4805 ngx_ssl_cleanup_ctx(glcf->upstream.ssl); |
| 7233 | 4806 return NGX_ERROR; |
| 4807 } | |
| 4808 | |
| 4809 cln->handler = ngx_ssl_cleanup_ctx; | |
| 4810 cln->data = glcf->upstream.ssl; | |
| 4811 | |
| 4812 if (glcf->ssl_certificate.len) { | |
| 4813 | |
| 4814 if (glcf->ssl_certificate_key.len == 0) { | |
| 4815 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 4816 "no \"grpc_ssl_certificate_key\" is defined " | |
| 4817 "for certificate \"%V\"", &glcf->ssl_certificate); | |
| 4818 return NGX_ERROR; | |
| 4819 } | |
| 4820 | |
| 4821 if (ngx_ssl_certificate(cf, glcf->upstream.ssl, &glcf->ssl_certificate, | |
| 4822 &glcf->ssl_certificate_key, glcf->ssl_passwords) | |
| 4823 != NGX_OK) | |
| 4824 { | |
| 4825 return NGX_ERROR; | |
| 4826 } | |
| 4827 } | |
| 4828 | |
| 4829 if (ngx_ssl_ciphers(cf, glcf->upstream.ssl, &glcf->ssl_ciphers, 0) | |
| 4830 != NGX_OK) | |
| 4831 { | |
| 4832 return NGX_ERROR; | |
| 4833 } | |
| 4834 | |
| 4835 if (glcf->upstream.ssl_verify) { | |
| 4836 if (glcf->ssl_trusted_certificate.len == 0) { | |
| 4837 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 4838 "no grpc_ssl_trusted_certificate for grpc_ssl_verify"); | |
| 4839 return NGX_ERROR; | |
| 4840 } | |
| 4841 | |
| 4842 if (ngx_ssl_trusted_certificate(cf, glcf->upstream.ssl, | |
| 4843 &glcf->ssl_trusted_certificate, | |
| 4844 glcf->ssl_verify_depth) | |
| 4845 != NGX_OK) | |
| 4846 { | |
| 4847 return NGX_ERROR; | |
| 4848 } | |
| 4849 | |
| 4850 if (ngx_ssl_crl(cf, glcf->upstream.ssl, &glcf->ssl_crl) != NGX_OK) { | |
| 4851 return NGX_ERROR; | |
| 4852 } | |
| 4853 } | |
| 4854 | |
|
7320
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4855 if (ngx_ssl_client_session_cache(cf, glcf->upstream.ssl, |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4856 glcf->upstream.ssl_session_reuse) |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4857 != NGX_OK) |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4858 { |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4859 return NGX_ERROR; |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4860 } |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4861 |
| 7233 | 4862 #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation |
| 4863 | |
| 4864 if (SSL_CTX_set_alpn_protos(glcf->upstream.ssl->ctx, | |
| 4865 (u_char *) "\x02h2", 3) | |
| 4866 != 0) | |
| 4867 { | |
| 4868 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, | |
| 4869 "SSL_CTX_set_alpn_protos() failed"); | |
| 4870 return NGX_ERROR; | |
| 4871 } | |
| 4872 | |
| 4873 #endif | |
| 4874 | |
| 4875 return NGX_OK; | |
| 4876 } | |
| 4877 | |
| 4878 #endif |