Mercurial > hg > nginx
annotate src/http/modules/ngx_http_grpc_module.c @ 7728:485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
With this change, it is now possible to use ngx_conf_merge_ptr_value()
to merge keyval arrays. This change actually follows much earlier
changes in ngx_conf_merge_ptr_value() and ngx_conf_set_str_array_slot()
in 1452:cd586e963db0 (0.6.10) and 1701:40d004d95d88 (0.6.22).
To preserve compatibility with existing 3rd party modules, both NULL
and NGX_CONF_UNSET_PTR are accepted for now.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Thu, 22 Oct 2020 18:00:20 +0300 |
| parents | 39501ce97e29 |
| children | 1a719ee45526 |
| 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 | |
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30 ngx_array_t *grpc_lengths; |
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31 ngx_array_t *grpc_values; |
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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 | |
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84 ngx_uint_t pings; |
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85 ngx_uint_t settings; |
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86 |
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87 off_t length; |
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88 |
| 7233 | 89 ssize_t send_window; |
| 90 size_t recv_window; | |
| 91 | |
| 92 size_t rest; | |
| 93 ngx_uint_t stream_id; | |
| 94 u_char type; | |
| 95 u_char flags; | |
| 96 u_char padding; | |
| 97 | |
| 98 ngx_uint_t error; | |
| 99 ngx_uint_t window_update; | |
| 100 | |
| 101 ngx_uint_t setting_id; | |
| 102 ngx_uint_t setting_value; | |
| 103 | |
| 104 u_char ping_data[8]; | |
| 105 | |
| 106 ngx_uint_t index; | |
| 107 ngx_str_t name; | |
| 108 ngx_str_t value; | |
| 109 | |
| 110 u_char *field_end; | |
| 111 size_t field_length; | |
| 112 size_t field_rest; | |
| 113 u_char field_state; | |
| 114 | |
| 115 unsigned literal:1; | |
| 116 unsigned field_huffman:1; | |
| 117 | |
| 118 unsigned header_sent:1; | |
| 119 unsigned output_closed:1; | |
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120 unsigned output_blocked:1; |
| 7233 | 121 unsigned parsing_headers:1; |
| 122 unsigned end_stream:1; | |
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123 unsigned done:1; |
| 7233 | 124 unsigned status:1; |
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125 unsigned rst:1; |
| 7233 | 126 |
| 127 ngx_http_request_t *request; | |
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128 |
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129 ngx_str_t host; |
| 7233 | 130 } ngx_http_grpc_ctx_t; |
| 131 | |
| 132 | |
| 133 typedef struct { | |
| 134 u_char length_0; | |
| 135 u_char length_1; | |
| 136 u_char length_2; | |
| 137 u_char type; | |
| 138 u_char flags; | |
| 139 u_char stream_id_0; | |
| 140 u_char stream_id_1; | |
| 141 u_char stream_id_2; | |
| 142 u_char stream_id_3; | |
| 143 } ngx_http_grpc_frame_t; | |
| 144 | |
| 145 | |
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146 static ngx_int_t ngx_http_grpc_eval(ngx_http_request_t *r, |
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147 ngx_http_grpc_ctx_t *ctx, ngx_http_grpc_loc_conf_t *glcf); |
| 7233 | 148 static ngx_int_t ngx_http_grpc_create_request(ngx_http_request_t *r); |
| 149 static ngx_int_t ngx_http_grpc_reinit_request(ngx_http_request_t *r); | |
| 150 static ngx_int_t ngx_http_grpc_body_output_filter(void *data, ngx_chain_t *in); | |
| 151 static ngx_int_t ngx_http_grpc_process_header(ngx_http_request_t *r); | |
| 152 static ngx_int_t ngx_http_grpc_filter_init(void *data); | |
| 153 static ngx_int_t ngx_http_grpc_filter(void *data, ssize_t bytes); | |
| 154 | |
| 155 static ngx_int_t ngx_http_grpc_parse_frame(ngx_http_request_t *r, | |
| 156 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 157 static ngx_int_t ngx_http_grpc_parse_header(ngx_http_request_t *r, | |
| 158 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 159 static ngx_int_t ngx_http_grpc_parse_fragment(ngx_http_request_t *r, | |
| 160 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 161 static ngx_int_t ngx_http_grpc_validate_header_name(ngx_http_request_t *r, | |
| 162 ngx_str_t *s); | |
| 163 static ngx_int_t ngx_http_grpc_validate_header_value(ngx_http_request_t *r, | |
| 164 ngx_str_t *s); | |
| 165 static ngx_int_t ngx_http_grpc_parse_rst_stream(ngx_http_request_t *r, | |
| 166 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 167 static ngx_int_t ngx_http_grpc_parse_goaway(ngx_http_request_t *r, | |
| 168 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 169 static ngx_int_t ngx_http_grpc_parse_window_update(ngx_http_request_t *r, | |
| 170 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 171 static ngx_int_t ngx_http_grpc_parse_settings(ngx_http_request_t *r, | |
| 172 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 173 static ngx_int_t ngx_http_grpc_parse_ping(ngx_http_request_t *r, | |
| 174 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 175 | |
| 176 static ngx_int_t ngx_http_grpc_send_settings_ack(ngx_http_request_t *r, | |
| 177 ngx_http_grpc_ctx_t *ctx); | |
| 178 static ngx_int_t ngx_http_grpc_send_ping_ack(ngx_http_request_t *r, | |
| 179 ngx_http_grpc_ctx_t *ctx); | |
| 180 static ngx_int_t ngx_http_grpc_send_window_update(ngx_http_request_t *r, | |
| 181 ngx_http_grpc_ctx_t *ctx); | |
| 182 | |
| 183 static ngx_chain_t *ngx_http_grpc_get_buf(ngx_http_request_t *r, | |
| 184 ngx_http_grpc_ctx_t *ctx); | |
| 185 static ngx_http_grpc_ctx_t *ngx_http_grpc_get_ctx(ngx_http_request_t *r); | |
| 186 static ngx_int_t ngx_http_grpc_get_connection_data(ngx_http_request_t *r, | |
| 187 ngx_http_grpc_ctx_t *ctx, ngx_peer_connection_t *pc); | |
| 188 static void ngx_http_grpc_cleanup(void *data); | |
| 189 | |
| 190 static void ngx_http_grpc_abort_request(ngx_http_request_t *r); | |
| 191 static void ngx_http_grpc_finalize_request(ngx_http_request_t *r, | |
| 192 ngx_int_t rc); | |
| 193 | |
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194 static ngx_int_t ngx_http_grpc_internal_trailers_variable( |
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195 ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); |
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196 |
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197 static ngx_int_t ngx_http_grpc_add_variables(ngx_conf_t *cf); |
| 7233 | 198 static void *ngx_http_grpc_create_loc_conf(ngx_conf_t *cf); |
| 199 static char *ngx_http_grpc_merge_loc_conf(ngx_conf_t *cf, | |
| 200 void *parent, void *child); | |
| 201 static ngx_int_t ngx_http_grpc_init_headers(ngx_conf_t *cf, | |
| 202 ngx_http_grpc_loc_conf_t *conf, ngx_http_grpc_headers_t *headers, | |
| 203 ngx_keyval_t *default_headers); | |
| 204 | |
| 205 static char *ngx_http_grpc_pass(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 206 void *conf); | |
| 207 | |
| 208 #if (NGX_HTTP_SSL) | |
| 209 static char *ngx_http_grpc_ssl_password_file(ngx_conf_t *cf, | |
| 210 ngx_command_t *cmd, void *conf); | |
| 211 static ngx_int_t ngx_http_grpc_set_ssl(ngx_conf_t *cf, | |
| 212 ngx_http_grpc_loc_conf_t *glcf); | |
| 213 #endif | |
| 214 | |
| 215 | |
| 216 static ngx_conf_bitmask_t ngx_http_grpc_next_upstream_masks[] = { | |
| 217 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR }, | |
| 218 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT }, | |
| 219 { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER }, | |
| 220 { ngx_string("non_idempotent"), NGX_HTTP_UPSTREAM_FT_NON_IDEMPOTENT }, | |
| 221 { ngx_string("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500 }, | |
| 222 { ngx_string("http_502"), NGX_HTTP_UPSTREAM_FT_HTTP_502 }, | |
| 223 { ngx_string("http_503"), NGX_HTTP_UPSTREAM_FT_HTTP_503 }, | |
| 224 { ngx_string("http_504"), NGX_HTTP_UPSTREAM_FT_HTTP_504 }, | |
| 225 { ngx_string("http_403"), NGX_HTTP_UPSTREAM_FT_HTTP_403 }, | |
| 226 { ngx_string("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404 }, | |
| 227 { ngx_string("http_429"), NGX_HTTP_UPSTREAM_FT_HTTP_429 }, | |
| 228 { ngx_string("off"), NGX_HTTP_UPSTREAM_FT_OFF }, | |
| 229 { ngx_null_string, 0 } | |
| 230 }; | |
| 231 | |
| 232 | |
| 233 #if (NGX_HTTP_SSL) | |
| 234 | |
| 235 static ngx_conf_bitmask_t ngx_http_grpc_ssl_protocols[] = { | |
| 236 { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, | |
| 237 { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, | |
| 238 { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, | |
| 239 { ngx_string("TLSv1.1"), NGX_SSL_TLSv1_1 }, | |
| 240 { ngx_string("TLSv1.2"), NGX_SSL_TLSv1_2 }, | |
| 241 { ngx_string("TLSv1.3"), NGX_SSL_TLSv1_3 }, | |
| 242 { ngx_null_string, 0 } | |
| 243 }; | |
| 244 | |
| 245 #endif | |
| 246 | |
| 247 | |
| 248 static ngx_command_t ngx_http_grpc_commands[] = { | |
| 249 | |
| 250 { ngx_string("grpc_pass"), | |
| 251 NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1, | |
| 252 ngx_http_grpc_pass, | |
| 253 NGX_HTTP_LOC_CONF_OFFSET, | |
| 254 0, | |
| 255 NULL }, | |
| 256 | |
| 257 { ngx_string("grpc_bind"), | |
| 258 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12, | |
| 259 ngx_http_upstream_bind_set_slot, | |
| 260 NGX_HTTP_LOC_CONF_OFFSET, | |
| 261 offsetof(ngx_http_grpc_loc_conf_t, upstream.local), | |
| 262 NULL }, | |
| 263 | |
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264 { ngx_string("grpc_socket_keepalive"), |
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265 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
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266 ngx_conf_set_flag_slot, |
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267 NGX_HTTP_LOC_CONF_OFFSET, |
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268 offsetof(ngx_http_grpc_loc_conf_t, upstream.socket_keepalive), |
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269 NULL }, |
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270 |
| 7233 | 271 { ngx_string("grpc_connect_timeout"), |
| 272 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 273 ngx_conf_set_msec_slot, | |
| 274 NGX_HTTP_LOC_CONF_OFFSET, | |
| 275 offsetof(ngx_http_grpc_loc_conf_t, upstream.connect_timeout), | |
| 276 NULL }, | |
| 277 | |
| 278 { ngx_string("grpc_send_timeout"), | |
| 279 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 280 ngx_conf_set_msec_slot, | |
| 281 NGX_HTTP_LOC_CONF_OFFSET, | |
| 282 offsetof(ngx_http_grpc_loc_conf_t, upstream.send_timeout), | |
| 283 NULL }, | |
| 284 | |
| 285 { ngx_string("grpc_intercept_errors"), | |
| 286 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 287 ngx_conf_set_flag_slot, | |
| 288 NGX_HTTP_LOC_CONF_OFFSET, | |
| 289 offsetof(ngx_http_grpc_loc_conf_t, upstream.intercept_errors), | |
| 290 NULL }, | |
| 291 | |
| 292 { ngx_string("grpc_buffer_size"), | |
| 293 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 294 ngx_conf_set_size_slot, | |
| 295 NGX_HTTP_LOC_CONF_OFFSET, | |
| 296 offsetof(ngx_http_grpc_loc_conf_t, upstream.buffer_size), | |
| 297 NULL }, | |
| 298 | |
| 299 { ngx_string("grpc_read_timeout"), | |
| 300 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 301 ngx_conf_set_msec_slot, | |
| 302 NGX_HTTP_LOC_CONF_OFFSET, | |
| 303 offsetof(ngx_http_grpc_loc_conf_t, upstream.read_timeout), | |
| 304 NULL }, | |
| 305 | |
| 306 { ngx_string("grpc_next_upstream"), | |
| 307 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
| 308 ngx_conf_set_bitmask_slot, | |
| 309 NGX_HTTP_LOC_CONF_OFFSET, | |
| 310 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream), | |
| 311 &ngx_http_grpc_next_upstream_masks }, | |
| 312 | |
| 313 { ngx_string("grpc_next_upstream_tries"), | |
| 314 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 315 ngx_conf_set_num_slot, | |
| 316 NGX_HTTP_LOC_CONF_OFFSET, | |
| 317 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream_tries), | |
| 318 NULL }, | |
| 319 | |
| 320 { ngx_string("grpc_next_upstream_timeout"), | |
| 321 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 322 ngx_conf_set_msec_slot, | |
| 323 NGX_HTTP_LOC_CONF_OFFSET, | |
| 324 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream_timeout), | |
| 325 NULL }, | |
| 326 | |
| 327 { ngx_string("grpc_set_header"), | |
| 328 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, | |
| 329 ngx_conf_set_keyval_slot, | |
| 330 NGX_HTTP_LOC_CONF_OFFSET, | |
| 331 offsetof(ngx_http_grpc_loc_conf_t, headers_source), | |
| 332 NULL }, | |
| 333 | |
| 334 { ngx_string("grpc_pass_header"), | |
| 335 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 336 ngx_conf_set_str_array_slot, | |
| 337 NGX_HTTP_LOC_CONF_OFFSET, | |
| 338 offsetof(ngx_http_grpc_loc_conf_t, upstream.pass_headers), | |
| 339 NULL }, | |
| 340 | |
| 341 { ngx_string("grpc_hide_header"), | |
| 342 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 343 ngx_conf_set_str_array_slot, | |
| 344 NGX_HTTP_LOC_CONF_OFFSET, | |
| 345 offsetof(ngx_http_grpc_loc_conf_t, upstream.hide_headers), | |
| 346 NULL }, | |
| 347 | |
| 348 { ngx_string("grpc_ignore_headers"), | |
| 349 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
| 350 ngx_conf_set_bitmask_slot, | |
| 351 NGX_HTTP_LOC_CONF_OFFSET, | |
| 352 offsetof(ngx_http_grpc_loc_conf_t, upstream.ignore_headers), | |
| 353 &ngx_http_upstream_ignore_headers_masks }, | |
| 354 | |
| 355 #if (NGX_HTTP_SSL) | |
| 356 | |
| 357 { ngx_string("grpc_ssl_session_reuse"), | |
| 358 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 359 ngx_conf_set_flag_slot, | |
| 360 NGX_HTTP_LOC_CONF_OFFSET, | |
| 361 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_session_reuse), | |
| 362 NULL }, | |
| 363 | |
| 364 { ngx_string("grpc_ssl_protocols"), | |
| 365 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
| 366 ngx_conf_set_bitmask_slot, | |
| 367 NGX_HTTP_LOC_CONF_OFFSET, | |
| 368 offsetof(ngx_http_grpc_loc_conf_t, ssl_protocols), | |
| 369 &ngx_http_grpc_ssl_protocols }, | |
| 370 | |
| 371 { ngx_string("grpc_ssl_ciphers"), | |
| 372 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 373 ngx_conf_set_str_slot, | |
| 374 NGX_HTTP_LOC_CONF_OFFSET, | |
| 375 offsetof(ngx_http_grpc_loc_conf_t, ssl_ciphers), | |
| 376 NULL }, | |
| 377 | |
| 378 { ngx_string("grpc_ssl_name"), | |
| 379 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 380 ngx_http_set_complex_value_slot, | |
| 381 NGX_HTTP_LOC_CONF_OFFSET, | |
| 382 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_name), | |
| 383 NULL }, | |
| 384 | |
| 385 { ngx_string("grpc_ssl_server_name"), | |
| 386 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 387 ngx_conf_set_flag_slot, | |
| 388 NGX_HTTP_LOC_CONF_OFFSET, | |
| 389 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_server_name), | |
| 390 NULL }, | |
| 391 | |
| 392 { ngx_string("grpc_ssl_verify"), | |
| 393 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 394 ngx_conf_set_flag_slot, | |
| 395 NGX_HTTP_LOC_CONF_OFFSET, | |
| 396 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_verify), | |
| 397 NULL }, | |
| 398 | |
| 399 { ngx_string("grpc_ssl_verify_depth"), | |
| 400 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 401 ngx_conf_set_num_slot, | |
| 402 NGX_HTTP_LOC_CONF_OFFSET, | |
| 403 offsetof(ngx_http_grpc_loc_conf_t, ssl_verify_depth), | |
| 404 NULL }, | |
| 405 | |
| 406 { ngx_string("grpc_ssl_trusted_certificate"), | |
| 407 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 408 ngx_conf_set_str_slot, | |
| 409 NGX_HTTP_LOC_CONF_OFFSET, | |
| 410 offsetof(ngx_http_grpc_loc_conf_t, ssl_trusted_certificate), | |
| 411 NULL }, | |
| 412 | |
| 413 { ngx_string("grpc_ssl_crl"), | |
| 414 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 415 ngx_conf_set_str_slot, | |
| 416 NGX_HTTP_LOC_CONF_OFFSET, | |
| 417 offsetof(ngx_http_grpc_loc_conf_t, ssl_crl), | |
| 418 NULL }, | |
| 419 | |
| 420 { ngx_string("grpc_ssl_certificate"), | |
| 421 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 422 ngx_conf_set_str_slot, | |
| 423 NGX_HTTP_LOC_CONF_OFFSET, | |
| 424 offsetof(ngx_http_grpc_loc_conf_t, ssl_certificate), | |
| 425 NULL }, | |
| 426 | |
| 427 { ngx_string("grpc_ssl_certificate_key"), | |
| 428 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 429 ngx_conf_set_str_slot, | |
| 430 NGX_HTTP_LOC_CONF_OFFSET, | |
| 431 offsetof(ngx_http_grpc_loc_conf_t, ssl_certificate_key), | |
| 432 NULL }, | |
| 433 | |
| 434 { ngx_string("grpc_ssl_password_file"), | |
| 435 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 436 ngx_http_grpc_ssl_password_file, | |
| 437 NGX_HTTP_LOC_CONF_OFFSET, | |
| 438 0, | |
| 439 NULL }, | |
| 440 | |
| 441 #endif | |
| 442 | |
| 443 ngx_null_command | |
| 444 }; | |
| 445 | |
| 446 | |
| 447 static ngx_http_module_t ngx_http_grpc_module_ctx = { | |
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448 ngx_http_grpc_add_variables, /* preconfiguration */ |
| 7233 | 449 NULL, /* postconfiguration */ |
| 450 | |
| 451 NULL, /* create main configuration */ | |
| 452 NULL, /* init main configuration */ | |
| 453 | |
| 454 NULL, /* create server configuration */ | |
| 455 NULL, /* merge server configuration */ | |
| 456 | |
| 457 ngx_http_grpc_create_loc_conf, /* create location configuration */ | |
| 458 ngx_http_grpc_merge_loc_conf /* merge location configuration */ | |
| 459 }; | |
| 460 | |
| 461 | |
| 462 ngx_module_t ngx_http_grpc_module = { | |
| 463 NGX_MODULE_V1, | |
| 464 &ngx_http_grpc_module_ctx, /* module context */ | |
| 465 ngx_http_grpc_commands, /* module directives */ | |
| 466 NGX_HTTP_MODULE, /* module type */ | |
| 467 NULL, /* init master */ | |
| 468 NULL, /* init module */ | |
| 469 NULL, /* init process */ | |
| 470 NULL, /* init thread */ | |
| 471 NULL, /* exit thread */ | |
| 472 NULL, /* exit process */ | |
| 473 NULL, /* exit master */ | |
| 474 NGX_MODULE_V1_PADDING | |
| 475 }; | |
| 476 | |
| 477 | |
| 478 static u_char ngx_http_grpc_connection_start[] = | |
| 479 "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n" /* connection preface */ | |
| 480 | |
| 481 "\x00\x00\x12\x04\x00\x00\x00\x00\x00" /* settings frame */ | |
| 482 "\x00\x01\x00\x00\x00\x00" /* header table size */ | |
| 483 "\x00\x02\x00\x00\x00\x00" /* disable push */ | |
| 484 "\x00\x04\x7f\xff\xff\xff" /* initial window */ | |
| 485 | |
| 486 "\x00\x00\x04\x08\x00\x00\x00\x00\x00" /* window update frame */ | |
| 487 "\x7f\xff\x00\x00"; | |
| 488 | |
| 489 | |
| 490 static ngx_keyval_t ngx_http_grpc_headers[] = { | |
| 491 { ngx_string("Content-Length"), ngx_string("$content_length") }, | |
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492 { ngx_string("TE"), ngx_string("$grpc_internal_trailers") }, |
| 7233 | 493 { ngx_string("Host"), ngx_string("") }, |
| 494 { ngx_string("Connection"), ngx_string("") }, | |
| 495 { ngx_string("Transfer-Encoding"), ngx_string("") }, | |
| 496 { ngx_string("Keep-Alive"), ngx_string("") }, | |
| 497 { ngx_string("Expect"), ngx_string("") }, | |
| 498 { ngx_string("Upgrade"), ngx_string("") }, | |
| 499 { ngx_null_string, ngx_null_string } | |
| 500 }; | |
| 501 | |
| 502 | |
| 503 static ngx_str_t ngx_http_grpc_hide_headers[] = { | |
| 504 ngx_string("Date"), | |
| 505 ngx_string("Server"), | |
| 506 ngx_string("X-Accel-Expires"), | |
| 507 ngx_string("X-Accel-Redirect"), | |
| 508 ngx_string("X-Accel-Limit-Rate"), | |
| 509 ngx_string("X-Accel-Buffering"), | |
| 510 ngx_string("X-Accel-Charset"), | |
| 511 ngx_null_string | |
| 512 }; | |
| 513 | |
| 514 | |
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515 static ngx_http_variable_t ngx_http_grpc_vars[] = { |
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516 |
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517 { ngx_string("grpc_internal_trailers"), NULL, |
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518 ngx_http_grpc_internal_trailers_variable, 0, |
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519 NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_NOHASH, 0 }, |
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520 |
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521 ngx_http_null_variable |
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522 }; |
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523 |
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524 |
| 7233 | 525 static ngx_int_t |
| 526 ngx_http_grpc_handler(ngx_http_request_t *r) | |
| 527 { | |
| 528 ngx_int_t rc; | |
| 529 ngx_http_upstream_t *u; | |
| 530 ngx_http_grpc_ctx_t *ctx; | |
| 531 ngx_http_grpc_loc_conf_t *glcf; | |
| 532 | |
| 533 if (ngx_http_upstream_create(r) != NGX_OK) { | |
| 534 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 535 } | |
| 536 | |
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537 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_grpc_ctx_t)); |
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538 if (ctx == NULL) { |
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539 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
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540 } |
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541 |
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542 ctx->request = r; |
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543 |
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544 ngx_http_set_ctx(r, ctx, ngx_http_grpc_module); |
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545 |
| 7233 | 546 glcf = ngx_http_get_module_loc_conf(r, ngx_http_grpc_module); |
| 547 | |
| 548 u = r->upstream; | |
| 549 | |
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550 if (glcf->grpc_lengths == NULL) { |
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551 ctx->host = glcf->host; |
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552 |
| 7233 | 553 #if (NGX_HTTP_SSL) |
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554 u->ssl = (glcf->upstream.ssl != NULL); |
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555 |
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556 if (u->ssl) { |
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557 ngx_str_set(&u->schema, "grpcs://"); |
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558 |
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559 } else { |
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560 ngx_str_set(&u->schema, "grpc://"); |
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561 } |
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562 #else |
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563 ngx_str_set(&u->schema, "grpc://"); |
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564 #endif |
| 7233 | 565 |
| 566 } else { | |
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567 if (ngx_http_grpc_eval(r, ctx, glcf) != NGX_OK) { |
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568 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
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569 } |
| 7233 | 570 } |
| 571 | |
| 572 u->output.tag = (ngx_buf_tag_t) &ngx_http_grpc_module; | |
| 573 | |
| 574 u->conf = &glcf->upstream; | |
| 575 | |
| 576 u->create_request = ngx_http_grpc_create_request; | |
| 577 u->reinit_request = ngx_http_grpc_reinit_request; | |
| 578 u->process_header = ngx_http_grpc_process_header; | |
| 579 u->abort_request = ngx_http_grpc_abort_request; | |
| 580 u->finalize_request = ngx_http_grpc_finalize_request; | |
| 581 | |
| 582 u->input_filter_init = ngx_http_grpc_filter_init; | |
| 583 u->input_filter = ngx_http_grpc_filter; | |
| 584 u->input_filter_ctx = ctx; | |
| 585 | |
| 586 r->request_body_no_buffering = 1; | |
| 587 | |
| 588 rc = ngx_http_read_client_request_body(r, ngx_http_upstream_init); | |
| 589 | |
| 590 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) { | |
| 591 return rc; | |
| 592 } | |
| 593 | |
| 594 return NGX_DONE; | |
| 595 } | |
| 596 | |
| 597 | |
| 598 static ngx_int_t | |
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599 ngx_http_grpc_eval(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, |
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600 ngx_http_grpc_loc_conf_t *glcf) |
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601 { |
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602 size_t add; |
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603 ngx_url_t url; |
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604 ngx_http_upstream_t *u; |
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605 |
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606 ngx_memzero(&url, sizeof(ngx_url_t)); |
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607 |
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608 if (ngx_http_script_run(r, &url.url, glcf->grpc_lengths->elts, 0, |
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609 glcf->grpc_values->elts) |
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610 == NULL) |
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611 { |
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612 return NGX_ERROR; |
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613 } |
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614 |
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615 if (url.url.len > 7 |
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616 && ngx_strncasecmp(url.url.data, (u_char *) "grpc://", 7) == 0) |
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617 { |
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618 add = 7; |
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619 |
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620 } else if (url.url.len > 8 |
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621 && ngx_strncasecmp(url.url.data, (u_char *) "grpcs://", 8) == 0) |
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622 { |
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623 |
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624 #if (NGX_HTTP_SSL) |
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625 add = 8; |
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626 r->upstream->ssl = 1; |
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627 #else |
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628 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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629 "grpcs protocol requires SSL support"); |
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630 return NGX_ERROR; |
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631 #endif |
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632 |
|
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633 } else { |
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634 add = 0; |
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635 } |
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636 |
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637 u = r->upstream; |
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638 |
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639 if (add) { |
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640 u->schema.len = add; |
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641 u->schema.data = url.url.data; |
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642 |
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643 url.url.data += add; |
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644 url.url.len -= add; |
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645 |
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646 } else { |
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647 ngx_str_set(&u->schema, "grpc://"); |
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648 } |
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649 |
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650 url.no_resolve = 1; |
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651 |
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652 if (ngx_parse_url(r->pool, &url) != NGX_OK) { |
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653 if (url.err) { |
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654 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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655 "%s in upstream \"%V\"", url.err, &url.url); |
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656 } |
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657 |
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658 return NGX_ERROR; |
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659 } |
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660 |
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661 u->resolved = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_resolved_t)); |
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662 if (u->resolved == NULL) { |
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663 return NGX_ERROR; |
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664 } |
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665 |
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666 if (url.addrs) { |
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667 u->resolved->sockaddr = url.addrs[0].sockaddr; |
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668 u->resolved->socklen = url.addrs[0].socklen; |
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669 u->resolved->name = url.addrs[0].name; |
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670 u->resolved->naddrs = 1; |
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671 } |
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672 |
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673 u->resolved->host = url.host; |
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674 u->resolved->port = url.port; |
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675 u->resolved->no_port = url.no_port; |
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676 |
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677 if (url.family != AF_UNIX) { |
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678 |
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679 if (url.no_port) { |
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680 ctx->host = url.host; |
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681 |
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682 } else { |
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683 ctx->host.len = url.host.len + 1 + url.port_text.len; |
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684 ctx->host.data = url.host.data; |
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685 } |
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686 |
|
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687 } else { |
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688 ngx_str_set(&ctx->host, "localhost"); |
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689 } |
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690 |
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691 return NGX_OK; |
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692 } |
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|
693 |
|
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|
694 |
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695 static ngx_int_t |
| 7233 | 696 ngx_http_grpc_create_request(ngx_http_request_t *r) |
| 697 { | |
| 698 u_char *p, *tmp, *key_tmp, *val_tmp, *headers_frame; | |
| 699 size_t len, tmp_len, key_len, val_len, uri_len; | |
| 700 uintptr_t escape; | |
| 701 ngx_buf_t *b; | |
| 702 ngx_uint_t i, next; | |
| 703 ngx_chain_t *cl, *body; | |
| 704 ngx_list_part_t *part; | |
| 705 ngx_table_elt_t *header; | |
|
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706 ngx_http_grpc_ctx_t *ctx; |
| 7233 | 707 ngx_http_upstream_t *u; |
| 708 ngx_http_grpc_frame_t *f; | |
| 709 ngx_http_script_code_pt code; | |
| 710 ngx_http_grpc_loc_conf_t *glcf; | |
| 711 ngx_http_script_engine_t e, le; | |
| 712 ngx_http_script_len_code_pt lcode; | |
| 713 | |
| 714 u = r->upstream; | |
| 715 | |
| 716 glcf = ngx_http_get_module_loc_conf(r, ngx_http_grpc_module); | |
| 717 | |
|
7619
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718 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); |
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719 |
| 7233 | 720 len = sizeof(ngx_http_grpc_connection_start) - 1 |
| 721 + sizeof(ngx_http_grpc_frame_t); /* headers frame */ | |
| 722 | |
| 723 /* :method header */ | |
| 724 | |
| 725 if (r->method == NGX_HTTP_GET || r->method == NGX_HTTP_POST) { | |
| 726 len += 1; | |
| 727 tmp_len = 0; | |
| 728 | |
| 729 } else { | |
| 730 len += 1 + NGX_HTTP_V2_INT_OCTETS + r->method_name.len; | |
| 731 tmp_len = r->method_name.len; | |
| 732 } | |
| 733 | |
| 734 /* :scheme header */ | |
| 735 | |
| 736 len += 1; | |
| 737 | |
| 738 /* :path header */ | |
| 739 | |
| 740 if (r->valid_unparsed_uri) { | |
| 741 escape = 0; | |
| 742 uri_len = r->unparsed_uri.len; | |
| 743 | |
| 744 } else { | |
| 745 escape = 2 * ngx_escape_uri(NULL, r->uri.data, r->uri.len, | |
| 746 NGX_ESCAPE_URI); | |
| 747 uri_len = r->uri.len + escape + sizeof("?") - 1 + r->args.len; | |
| 748 } | |
| 749 | |
| 750 len += 1 + NGX_HTTP_V2_INT_OCTETS + uri_len; | |
| 751 | |
| 752 if (tmp_len < uri_len) { | |
| 753 tmp_len = uri_len; | |
| 754 } | |
| 755 | |
| 756 /* :authority header */ | |
| 757 | |
| 758 if (!glcf->host_set) { | |
|
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759 len += 1 + NGX_HTTP_V2_INT_OCTETS + ctx->host.len; |
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|
760 |
|
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761 if (tmp_len < ctx->host.len) { |
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762 tmp_len = ctx->host.len; |
| 7233 | 763 } |
| 764 } | |
| 765 | |
| 766 /* other headers */ | |
| 767 | |
| 768 ngx_http_script_flush_no_cacheable_variables(r, glcf->headers.flushes); | |
| 769 ngx_memzero(&le, sizeof(ngx_http_script_engine_t)); | |
| 770 | |
| 771 le.ip = glcf->headers.lengths->elts; | |
| 772 le.request = r; | |
| 773 le.flushed = 1; | |
| 774 | |
| 775 while (*(uintptr_t *) le.ip) { | |
| 776 | |
| 777 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 778 key_len = lcode(&le); | |
| 779 | |
| 780 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { | |
| 781 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 782 } | |
| 783 le.ip += sizeof(uintptr_t); | |
| 784 | |
| 785 if (val_len == 0) { | |
| 786 continue; | |
| 787 } | |
| 788 | |
| 789 len += 1 + NGX_HTTP_V2_INT_OCTETS + key_len | |
| 790 + NGX_HTTP_V2_INT_OCTETS + val_len; | |
| 791 | |
| 792 if (tmp_len < key_len) { | |
| 793 tmp_len = key_len; | |
| 794 } | |
| 795 | |
| 796 if (tmp_len < val_len) { | |
| 797 tmp_len = val_len; | |
| 798 } | |
| 799 } | |
| 800 | |
| 801 if (glcf->upstream.pass_request_headers) { | |
| 802 part = &r->headers_in.headers.part; | |
| 803 header = part->elts; | |
| 804 | |
| 805 for (i = 0; /* void */; i++) { | |
| 806 | |
| 807 if (i >= part->nelts) { | |
| 808 if (part->next == NULL) { | |
| 809 break; | |
| 810 } | |
| 811 | |
| 812 part = part->next; | |
| 813 header = part->elts; | |
| 814 i = 0; | |
| 815 } | |
| 816 | |
| 817 if (ngx_hash_find(&glcf->headers.hash, header[i].hash, | |
| 818 header[i].lowcase_key, header[i].key.len)) | |
| 819 { | |
| 820 continue; | |
| 821 } | |
| 822 | |
| 823 len += 1 + NGX_HTTP_V2_INT_OCTETS + header[i].key.len | |
| 824 + NGX_HTTP_V2_INT_OCTETS + header[i].value.len; | |
| 825 | |
| 826 if (tmp_len < header[i].key.len) { | |
| 827 tmp_len = header[i].key.len; | |
| 828 } | |
| 829 | |
| 830 if (tmp_len < header[i].value.len) { | |
| 831 tmp_len = header[i].value.len; | |
| 832 } | |
| 833 } | |
| 834 } | |
| 835 | |
| 836 /* continuation frames */ | |
| 837 | |
| 838 len += sizeof(ngx_http_grpc_frame_t) | |
| 839 * (len / NGX_HTTP_V2_DEFAULT_FRAME_SIZE); | |
| 840 | |
| 841 | |
| 842 b = ngx_create_temp_buf(r->pool, len); | |
| 843 if (b == NULL) { | |
| 844 return NGX_ERROR; | |
| 845 } | |
| 846 | |
| 847 cl = ngx_alloc_chain_link(r->pool); | |
| 848 if (cl == NULL) { | |
| 849 return NGX_ERROR; | |
| 850 } | |
| 851 | |
| 852 cl->buf = b; | |
| 853 cl->next = NULL; | |
| 854 | |
| 855 tmp = ngx_palloc(r->pool, tmp_len * 3); | |
| 856 if (tmp == NULL) { | |
| 857 return NGX_ERROR; | |
| 858 } | |
| 859 | |
| 860 key_tmp = tmp + tmp_len; | |
| 861 val_tmp = tmp + 2 * tmp_len; | |
| 862 | |
| 863 /* connection preface */ | |
| 864 | |
| 865 b->last = ngx_copy(b->last, ngx_http_grpc_connection_start, | |
| 866 sizeof(ngx_http_grpc_connection_start) - 1); | |
| 867 | |
| 868 /* headers frame */ | |
| 869 | |
| 870 headers_frame = b->last; | |
| 871 | |
| 872 f = (ngx_http_grpc_frame_t *) b->last; | |
| 873 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 874 | |
| 875 f->length_0 = 0; | |
| 876 f->length_1 = 0; | |
| 877 f->length_2 = 0; | |
| 878 f->type = NGX_HTTP_V2_HEADERS_FRAME; | |
| 879 f->flags = 0; | |
| 880 f->stream_id_0 = 0; | |
| 881 f->stream_id_1 = 0; | |
| 882 f->stream_id_2 = 0; | |
| 883 f->stream_id_3 = 1; | |
| 884 | |
| 885 if (r->method == NGX_HTTP_GET) { | |
| 886 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_METHOD_GET_INDEX); | |
| 887 | |
| 888 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 889 "grpc header: \":method: GET\""); | |
| 890 | |
| 891 } else if (r->method == NGX_HTTP_POST) { | |
| 892 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_METHOD_POST_INDEX); | |
| 893 | |
| 894 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 895 "grpc header: \":method: POST\""); | |
| 896 | |
| 897 } else { | |
| 898 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_METHOD_INDEX); | |
| 899 b->last = ngx_http_v2_write_value(b->last, r->method_name.data, | |
| 900 r->method_name.len, tmp); | |
| 901 | |
| 902 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 903 "grpc header: \":method: %V\"", &r->method_name); | |
| 904 } | |
| 905 | |
| 906 #if (NGX_HTTP_SSL) | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
907 if (u->ssl) { |
| 7233 | 908 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_SCHEME_HTTPS_INDEX); |
| 909 | |
| 910 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 911 "grpc header: \":scheme: https\""); | |
| 912 } else | |
| 913 #endif | |
| 914 { | |
| 915 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_SCHEME_HTTP_INDEX); | |
| 916 | |
| 917 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 918 "grpc header: \":scheme: http\""); | |
| 919 } | |
| 920 | |
| 921 if (r->valid_unparsed_uri) { | |
| 922 | |
| 923 if (r->unparsed_uri.len == 1 && r->unparsed_uri.data[0] == '/') { | |
| 924 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_PATH_ROOT_INDEX); | |
| 925 | |
| 926 } else { | |
| 927 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
| 928 b->last = ngx_http_v2_write_value(b->last, r->unparsed_uri.data, | |
| 929 r->unparsed_uri.len, tmp); | |
| 930 } | |
| 931 | |
| 932 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 933 "grpc header: \":path: %V\"", &r->unparsed_uri); | |
| 934 | |
| 935 } else if (escape || r->args.len > 0) { | |
| 936 p = val_tmp; | |
| 937 | |
| 938 if (escape) { | |
| 939 p = (u_char *) ngx_escape_uri(p, r->uri.data, r->uri.len, | |
| 940 NGX_ESCAPE_URI); | |
| 941 | |
| 942 } else { | |
| 943 p = ngx_copy(p, r->uri.data, r->uri.len); | |
| 944 } | |
| 945 | |
| 946 if (r->args.len > 0) { | |
| 947 *p++ = '?'; | |
| 948 p = ngx_copy(p, r->args.data, r->args.len); | |
| 949 } | |
| 950 | |
| 951 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
| 952 b->last = ngx_http_v2_write_value(b->last, val_tmp, p - val_tmp, tmp); | |
| 953 | |
| 954 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 955 "grpc header: \":path: %*s\"", p - val_tmp, val_tmp); | |
| 956 | |
| 957 } else { | |
| 958 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
| 959 b->last = ngx_http_v2_write_value(b->last, r->uri.data, | |
| 960 r->uri.len, tmp); | |
| 961 | |
| 962 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 963 "grpc header: \":path: %V\"", &r->uri); | |
| 964 } | |
| 965 | |
| 966 if (!glcf->host_set) { | |
| 967 *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
|
968 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
|
969 ctx->host.len, tmp); |
| 7233 | 970 |
| 971 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
|
972 "grpc header: \":authority: %V\"", &ctx->host); |
| 7233 | 973 } |
| 974 | |
| 975 ngx_memzero(&e, sizeof(ngx_http_script_engine_t)); | |
| 976 | |
| 977 e.ip = glcf->headers.values->elts; | |
| 978 e.request = r; | |
| 979 e.flushed = 1; | |
| 980 | |
| 981 le.ip = glcf->headers.lengths->elts; | |
| 982 | |
| 983 while (*(uintptr_t *) le.ip) { | |
| 984 | |
| 985 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 986 key_len = lcode(&le); | |
| 987 | |
| 988 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { | |
| 989 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 990 } | |
| 991 le.ip += sizeof(uintptr_t); | |
| 992 | |
| 993 if (val_len == 0) { | |
| 994 e.skip = 1; | |
| 995 | |
| 996 while (*(uintptr_t *) e.ip) { | |
| 997 code = *(ngx_http_script_code_pt *) e.ip; | |
| 998 code((ngx_http_script_engine_t *) &e); | |
| 999 } | |
| 1000 e.ip += sizeof(uintptr_t); | |
| 1001 | |
| 1002 e.skip = 0; | |
| 1003 | |
| 1004 continue; | |
| 1005 } | |
| 1006 | |
| 1007 *b->last++ = 0; | |
| 1008 | |
| 1009 e.pos = key_tmp; | |
| 1010 | |
| 1011 code = *(ngx_http_script_code_pt *) e.ip; | |
| 1012 code((ngx_http_script_engine_t *) &e); | |
| 1013 | |
| 1014 b->last = ngx_http_v2_write_name(b->last, key_tmp, key_len, tmp); | |
| 1015 | |
| 1016 e.pos = val_tmp; | |
| 1017 | |
| 1018 while (*(uintptr_t *) e.ip) { | |
| 1019 code = *(ngx_http_script_code_pt *) e.ip; | |
| 1020 code((ngx_http_script_engine_t *) &e); | |
| 1021 } | |
| 1022 e.ip += sizeof(uintptr_t); | |
| 1023 | |
| 1024 b->last = ngx_http_v2_write_value(b->last, val_tmp, val_len, tmp); | |
| 1025 | |
| 1026 #if (NGX_DEBUG) | |
| 1027 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
| 1028 ngx_strlow(key_tmp, key_tmp, key_len); | |
| 1029 | |
| 1030 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1031 "grpc header: \"%*s: %*s\"", | |
| 1032 key_len, key_tmp, val_len, val_tmp); | |
| 1033 } | |
| 1034 #endif | |
| 1035 } | |
| 1036 | |
| 1037 if (glcf->upstream.pass_request_headers) { | |
| 1038 part = &r->headers_in.headers.part; | |
| 1039 header = part->elts; | |
| 1040 | |
| 1041 for (i = 0; /* void */; i++) { | |
| 1042 | |
| 1043 if (i >= part->nelts) { | |
| 1044 if (part->next == NULL) { | |
| 1045 break; | |
| 1046 } | |
| 1047 | |
| 1048 part = part->next; | |
| 1049 header = part->elts; | |
| 1050 i = 0; | |
| 1051 } | |
| 1052 | |
| 1053 if (ngx_hash_find(&glcf->headers.hash, header[i].hash, | |
| 1054 header[i].lowcase_key, header[i].key.len)) | |
| 1055 { | |
| 1056 continue; | |
| 1057 } | |
| 1058 | |
| 1059 *b->last++ = 0; | |
| 1060 | |
| 1061 b->last = ngx_http_v2_write_name(b->last, header[i].key.data, | |
| 1062 header[i].key.len, tmp); | |
| 1063 | |
| 1064 b->last = ngx_http_v2_write_value(b->last, header[i].value.data, | |
| 1065 header[i].value.len, tmp); | |
| 1066 | |
| 1067 #if (NGX_DEBUG) | |
| 1068 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
| 1069 ngx_strlow(tmp, header[i].key.data, header[i].key.len); | |
| 1070 | |
| 1071 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1072 "grpc header: \"%*s: %V\"", | |
| 1073 header[i].key.len, tmp, &header[i].value); | |
| 1074 } | |
| 1075 #endif | |
| 1076 } | |
| 1077 } | |
| 1078 | |
| 1079 /* update headers frame length */ | |
| 1080 | |
| 1081 len = b->last - headers_frame - sizeof(ngx_http_grpc_frame_t); | |
| 1082 | |
| 1083 if (len > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
| 1084 len = NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
| 1085 next = 1; | |
| 1086 | |
| 1087 } else { | |
| 1088 next = 0; | |
| 1089 } | |
| 1090 | |
| 1091 f = (ngx_http_grpc_frame_t *) headers_frame; | |
| 1092 | |
| 1093 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
| 1094 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
| 1095 f->length_2 = (u_char) (len & 0xff); | |
| 1096 | |
| 1097 /* create additional continuation frames */ | |
| 1098 | |
| 1099 p = headers_frame; | |
| 1100 | |
| 1101 while (next) { | |
| 1102 p += sizeof(ngx_http_grpc_frame_t) + NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
| 1103 len = b->last - p; | |
| 1104 | |
| 1105 ngx_memmove(p + sizeof(ngx_http_grpc_frame_t), p, len); | |
| 1106 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 1107 | |
| 1108 if (len > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
| 1109 len = NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
| 1110 next = 1; | |
| 1111 | |
| 1112 } else { | |
| 1113 next = 0; | |
| 1114 } | |
| 1115 | |
| 1116 f = (ngx_http_grpc_frame_t *) p; | |
| 1117 | |
| 1118 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
| 1119 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
| 1120 f->length_2 = (u_char) (len & 0xff); | |
| 1121 f->type = NGX_HTTP_V2_CONTINUATION_FRAME; | |
| 1122 f->flags = 0; | |
| 1123 f->stream_id_0 = 0; | |
| 1124 f->stream_id_1 = 0; | |
| 1125 f->stream_id_2 = 0; | |
| 1126 f->stream_id_3 = 1; | |
| 1127 } | |
| 1128 | |
| 1129 f->flags |= NGX_HTTP_V2_END_HEADERS_FLAG; | |
| 1130 | |
| 1131 #if (NGX_DEBUG) | |
| 1132 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
| 1133 u_char buf[512]; | |
| 1134 size_t n, m; | |
| 1135 | |
| 1136 n = ngx_min(b->last - b->pos, 256); | |
| 1137 m = ngx_hex_dump(buf, b->pos, n) - buf; | |
| 1138 | |
| 1139 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1140 "grpc header: %*s%s, len: %uz", | |
| 1141 m, buf, b->last - b->pos > 256 ? "..." : "", | |
| 1142 b->last - b->pos); | |
| 1143 } | |
| 1144 #endif | |
| 1145 | |
| 1146 if (r->request_body_no_buffering) { | |
| 1147 | |
| 1148 u->request_bufs = cl; | |
| 1149 | |
| 1150 } else { | |
| 1151 | |
| 1152 body = u->request_bufs; | |
| 1153 u->request_bufs = cl; | |
| 1154 | |
| 1155 if (body == NULL) { | |
| 1156 f = (ngx_http_grpc_frame_t *) headers_frame; | |
| 1157 f->flags |= NGX_HTTP_V2_END_STREAM_FLAG; | |
| 1158 } | |
| 1159 | |
| 1160 while (body) { | |
| 1161 b = ngx_alloc_buf(r->pool); | |
| 1162 if (b == NULL) { | |
| 1163 return NGX_ERROR; | |
| 1164 } | |
| 1165 | |
| 1166 ngx_memcpy(b, body->buf, sizeof(ngx_buf_t)); | |
| 1167 | |
| 1168 cl->next = ngx_alloc_chain_link(r->pool); | |
| 1169 if (cl->next == NULL) { | |
| 1170 return NGX_ERROR; | |
| 1171 } | |
| 1172 | |
| 1173 cl = cl->next; | |
| 1174 cl->buf = b; | |
| 1175 | |
| 1176 body = body->next; | |
| 1177 } | |
| 1178 | |
| 1179 b->last_buf = 1; | |
| 1180 } | |
| 1181 | |
| 1182 u->output.output_filter = ngx_http_grpc_body_output_filter; | |
| 1183 u->output.filter_ctx = r; | |
| 1184 | |
| 1185 b->flush = 1; | |
| 1186 cl->next = NULL; | |
| 1187 | |
| 1188 return NGX_OK; | |
| 1189 } | |
| 1190 | |
| 1191 | |
| 1192 static ngx_int_t | |
| 1193 ngx_http_grpc_reinit_request(ngx_http_request_t *r) | |
| 1194 { | |
| 1195 ngx_http_grpc_ctx_t *ctx; | |
| 1196 | |
| 1197 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); | |
| 1198 | |
| 1199 if (ctx == NULL) { | |
| 1200 return NGX_OK; | |
| 1201 } | |
| 1202 | |
| 1203 ctx->state = 0; | |
| 1204 ctx->header_sent = 0; | |
| 1205 ctx->output_closed = 0; | |
|
7350
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1206 ctx->output_blocked = 0; |
| 7233 | 1207 ctx->parsing_headers = 0; |
| 1208 ctx->end_stream = 0; | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1209 ctx->done = 0; |
| 7233 | 1210 ctx->status = 0; |
|
7646
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
1211 ctx->rst = 0; |
| 7233 | 1212 ctx->connection = NULL; |
| 1213 | |
| 1214 return NGX_OK; | |
| 1215 } | |
| 1216 | |
| 1217 | |
| 1218 static ngx_int_t | |
| 1219 ngx_http_grpc_body_output_filter(void *data, ngx_chain_t *in) | |
| 1220 { | |
| 1221 ngx_http_request_t *r = data; | |
| 1222 | |
| 1223 off_t file_pos; | |
| 1224 u_char *p, *pos, *start; | |
| 1225 size_t len, limit; | |
| 1226 ngx_buf_t *b; | |
| 1227 ngx_int_t rc; | |
| 1228 ngx_uint_t next, last; | |
| 1229 ngx_chain_t *cl, *out, **ll; | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1230 ngx_http_upstream_t *u; |
| 7233 | 1231 ngx_http_grpc_ctx_t *ctx; |
| 1232 ngx_http_grpc_frame_t *f; | |
| 1233 | |
| 1234 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1235 "grpc output filter"); | |
| 1236 | |
| 1237 ctx = ngx_http_grpc_get_ctx(r); | |
| 1238 | |
| 1239 if (ctx == NULL) { | |
| 1240 return NGX_ERROR; | |
| 1241 } | |
| 1242 | |
| 1243 if (in) { | |
| 1244 if (ngx_chain_add_copy(r->pool, &ctx->in, in) != NGX_OK) { | |
| 1245 return NGX_ERROR; | |
| 1246 } | |
| 1247 } | |
| 1248 | |
| 1249 out = NULL; | |
| 1250 ll = &out; | |
| 1251 | |
| 1252 if (!ctx->header_sent) { | |
| 1253 /* first buffer contains headers */ | |
| 1254 | |
| 1255 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1256 "grpc output header"); | |
| 1257 | |
| 1258 ctx->header_sent = 1; | |
| 1259 | |
| 1260 if (ctx->id != 1) { | |
| 1261 /* | |
| 1262 * keepalive connection: skip connection preface, | |
| 1263 * update stream identifiers | |
| 1264 */ | |
| 1265 | |
| 1266 b = ctx->in->buf; | |
| 1267 b->pos += sizeof(ngx_http_grpc_connection_start) - 1; | |
| 1268 | |
| 1269 p = b->pos; | |
| 1270 | |
| 1271 while (p < b->last) { | |
| 1272 f = (ngx_http_grpc_frame_t *) p; | |
| 1273 p += sizeof(ngx_http_grpc_frame_t); | |
| 1274 | |
| 1275 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 1276 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 1277 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 1278 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 1279 | |
| 1280 p += (f->length_0 << 16) + (f->length_1 << 8) + f->length_2; | |
| 1281 } | |
| 1282 } | |
| 1283 | |
| 1284 if (ctx->in->buf->last_buf) { | |
| 1285 ctx->output_closed = 1; | |
| 1286 } | |
| 1287 | |
| 1288 *ll = ctx->in; | |
| 1289 ll = &ctx->in->next; | |
| 1290 | |
| 1291 ctx->in = ctx->in->next; | |
| 1292 } | |
| 1293 | |
| 1294 if (ctx->out) { | |
| 1295 /* queued control frames */ | |
| 1296 | |
| 1297 *ll = ctx->out; | |
| 1298 | |
| 1299 for (cl = ctx->out, ll = &cl->next; cl; cl = cl->next) { | |
| 1300 ll = &cl->next; | |
| 1301 } | |
| 1302 | |
| 1303 ctx->out = NULL; | |
| 1304 } | |
| 1305 | |
| 1306 f = NULL; | |
| 1307 last = 0; | |
| 1308 | |
| 1309 limit = ngx_max(0, ctx->send_window); | |
| 1310 | |
| 1311 if (limit > ctx->connection->send_window) { | |
| 1312 limit = ctx->connection->send_window; | |
| 1313 } | |
| 1314 | |
| 1315 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1316 "grpc output limit: %uz w:%z:%uz", | |
| 1317 limit, ctx->send_window, ctx->connection->send_window); | |
| 1318 | |
| 1319 #if (NGX_SUPPRESS_WARN) | |
| 1320 file_pos = 0; | |
| 1321 pos = NULL; | |
| 1322 cl = NULL; | |
| 1323 #endif | |
| 1324 | |
| 1325 in = ctx->in; | |
| 1326 | |
| 1327 while (in && limit > 0) { | |
| 1328 | |
| 1329 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, r->connection->log, 0, | |
| 1330 "grpc output in l:%d f:%d %p, pos %p, size: %z " | |
| 1331 "file: %O, size: %O", | |
| 1332 in->buf->last_buf, | |
| 1333 in->buf->in_file, | |
| 1334 in->buf->start, in->buf->pos, | |
| 1335 in->buf->last - in->buf->pos, | |
| 1336 in->buf->file_pos, | |
| 1337 in->buf->file_last - in->buf->file_pos); | |
| 1338 | |
| 1339 if (ngx_buf_special(in->buf)) { | |
| 1340 goto next; | |
| 1341 } | |
| 1342 | |
| 1343 if (in->buf->in_file) { | |
| 1344 file_pos = in->buf->file_pos; | |
| 1345 | |
| 1346 } else { | |
| 1347 pos = in->buf->pos; | |
| 1348 } | |
| 1349 | |
| 1350 next = 0; | |
| 1351 | |
| 1352 do { | |
| 1353 | |
| 1354 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 1355 if (cl == NULL) { | |
| 1356 return NGX_ERROR; | |
| 1357 } | |
| 1358 | |
| 1359 b = cl->buf; | |
| 1360 | |
| 1361 f = (ngx_http_grpc_frame_t *) b->last; | |
| 1362 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 1363 | |
| 1364 *ll = cl; | |
| 1365 ll = &cl->next; | |
| 1366 | |
| 1367 cl = ngx_chain_get_free_buf(r->pool, &ctx->free); | |
| 1368 if (cl == NULL) { | |
| 1369 return NGX_ERROR; | |
| 1370 } | |
| 1371 | |
| 1372 b = cl->buf; | |
| 1373 start = b->start; | |
| 1374 | |
| 1375 ngx_memcpy(b, in->buf, sizeof(ngx_buf_t)); | |
| 1376 | |
| 1377 /* | |
| 1378 * restore b->start to preserve memory allocated in the buffer, | |
| 1379 * to reuse it later for headers and control frames | |
| 1380 */ | |
| 1381 | |
| 1382 b->start = start; | |
| 1383 | |
| 1384 if (in->buf->in_file) { | |
| 1385 b->file_pos = file_pos; | |
| 1386 file_pos += ngx_min(NGX_HTTP_V2_DEFAULT_FRAME_SIZE, limit); | |
| 1387 | |
| 1388 if (file_pos >= in->buf->file_last) { | |
| 1389 file_pos = in->buf->file_last; | |
| 1390 next = 1; | |
| 1391 } | |
| 1392 | |
| 1393 b->file_last = file_pos; | |
| 1394 len = (ngx_uint_t) (file_pos - b->file_pos); | |
| 1395 | |
| 1396 } else { | |
| 1397 b->pos = pos; | |
| 1398 pos += ngx_min(NGX_HTTP_V2_DEFAULT_FRAME_SIZE, limit); | |
| 1399 | |
| 1400 if (pos >= in->buf->last) { | |
| 1401 pos = in->buf->last; | |
| 1402 next = 1; | |
| 1403 } | |
| 1404 | |
| 1405 b->last = pos; | |
| 1406 len = (ngx_uint_t) (pos - b->pos); | |
| 1407 } | |
| 1408 | |
| 1409 b->tag = (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter; | |
| 1410 b->shadow = in->buf; | |
| 1411 b->last_shadow = next; | |
| 1412 | |
| 1413 b->last_buf = 0; | |
| 1414 b->last_in_chain = 0; | |
| 1415 | |
| 1416 *ll = cl; | |
| 1417 ll = &cl->next; | |
| 1418 | |
| 1419 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
| 1420 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
| 1421 f->length_2 = (u_char) (len & 0xff); | |
| 1422 f->type = NGX_HTTP_V2_DATA_FRAME; | |
| 1423 f->flags = 0; | |
| 1424 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 1425 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 1426 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 1427 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 1428 | |
| 1429 limit -= len; | |
| 1430 ctx->send_window -= len; | |
| 1431 ctx->connection->send_window -= len; | |
| 1432 | |
| 1433 } while (!next && limit > 0); | |
| 1434 | |
| 1435 if (!next) { | |
| 1436 /* | |
| 1437 * if the buffer wasn't fully sent due to flow control limits, | |
| 1438 * preserve position for future use | |
| 1439 */ | |
| 1440 | |
| 1441 if (in->buf->in_file) { | |
| 1442 in->buf->file_pos = file_pos; | |
| 1443 | |
| 1444 } else { | |
| 1445 in->buf->pos = pos; | |
| 1446 } | |
| 1447 | |
| 1448 break; | |
| 1449 } | |
| 1450 | |
| 1451 next: | |
| 1452 | |
| 1453 if (in->buf->last_buf) { | |
| 1454 last = 1; | |
| 1455 } | |
| 1456 | |
| 1457 in = in->next; | |
| 1458 } | |
| 1459 | |
| 1460 ctx->in = in; | |
| 1461 | |
| 1462 if (last) { | |
| 1463 | |
| 1464 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1465 "grpc output last"); | |
| 1466 | |
| 1467 ctx->output_closed = 1; | |
| 1468 | |
| 1469 if (f) { | |
| 1470 f->flags |= NGX_HTTP_V2_END_STREAM_FLAG; | |
| 1471 | |
| 1472 } else { | |
| 1473 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 1474 if (cl == NULL) { | |
| 1475 return NGX_ERROR; | |
| 1476 } | |
| 1477 | |
| 1478 b = cl->buf; | |
| 1479 | |
| 1480 f = (ngx_http_grpc_frame_t *) b->last; | |
| 1481 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 1482 | |
| 1483 f->length_0 = 0; | |
| 1484 f->length_1 = 0; | |
| 1485 f->length_2 = 0; | |
| 1486 f->type = NGX_HTTP_V2_DATA_FRAME; | |
| 1487 f->flags = NGX_HTTP_V2_END_STREAM_FLAG; | |
| 1488 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 1489 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 1490 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 1491 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 1492 | |
| 1493 *ll = cl; | |
| 1494 ll = &cl->next; | |
| 1495 } | |
| 1496 | |
| 1497 cl->buf->last_buf = 1; | |
| 1498 } | |
| 1499 | |
| 1500 *ll = NULL; | |
| 1501 | |
| 1502 #if (NGX_DEBUG) | |
| 1503 | |
| 1504 for (cl = out; cl; cl = cl->next) { | |
| 1505 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, r->connection->log, 0, | |
| 1506 "grpc output out l:%d f:%d %p, pos %p, size: %z " | |
| 1507 "file: %O, size: %O", | |
| 1508 cl->buf->last_buf, | |
| 1509 cl->buf->in_file, | |
| 1510 cl->buf->start, cl->buf->pos, | |
| 1511 cl->buf->last - cl->buf->pos, | |
| 1512 cl->buf->file_pos, | |
| 1513 cl->buf->file_last - cl->buf->file_pos); | |
| 1514 } | |
| 1515 | |
| 1516 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1517 "grpc output limit: %uz w:%z:%uz", | |
| 1518 limit, ctx->send_window, ctx->connection->send_window); | |
| 1519 | |
| 1520 #endif | |
| 1521 | |
| 1522 rc = ngx_chain_writer(&r->upstream->writer, out); | |
| 1523 | |
| 1524 ngx_chain_update_chains(r->pool, &ctx->free, &ctx->busy, &out, | |
| 1525 (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter); | |
| 1526 | |
| 1527 for (cl = ctx->free; cl; cl = cl->next) { | |
| 1528 | |
| 1529 /* mark original buffers as sent */ | |
| 1530 | |
| 1531 if (cl->buf->shadow) { | |
| 1532 if (cl->buf->last_shadow) { | |
| 1533 b = cl->buf->shadow; | |
| 1534 b->pos = b->last; | |
| 1535 } | |
| 1536 | |
| 1537 cl->buf->shadow = NULL; | |
| 1538 } | |
| 1539 } | |
| 1540 | |
| 1541 if (rc == NGX_OK && ctx->in) { | |
| 1542 rc = NGX_AGAIN; | |
| 1543 } | |
| 1544 | |
|
7350
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|
1545 if (rc == NGX_AGAIN) { |
|
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|
1546 ctx->output_blocked = 1; |
|
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|
1547 |
|
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|
1548 } else { |
|
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|
1549 ctx->output_blocked = 0; |
|
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|
1550 } |
|
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|
1551 |
|
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|
1552 if (ctx->done) { |
|
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|
1553 |
|
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|
1554 /* |
|
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|
1555 * We have already got the response and were sending some additional |
|
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|
1556 * control frames. Even if there is still something unsent, stop |
|
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gRPC: improved keepalive handling.
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|
1557 * here anyway. |
|
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|
1558 */ |
|
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|
1559 |
|
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|
1560 u = r->upstream; |
|
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1561 u->length = 0; |
|
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|
1562 |
|
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|
1563 if (ctx->in == NULL |
|
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1564 && ctx->out == NULL |
|
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|
1565 && ctx->output_closed |
|
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|
1566 && !ctx->output_blocked |
|
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1567 && ctx->state == ngx_http_grpc_st_start) |
|
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|
1568 { |
|
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|
1569 u->keepalive = 1; |
|
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1570 } |
|
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1571 |
|
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|
1572 ngx_post_event(u->peer.connection->read, &ngx_posted_events); |
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1573 } |
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|
1574 |
| 7233 | 1575 return rc; |
| 1576 } | |
| 1577 | |
| 1578 | |
| 1579 static ngx_int_t | |
| 1580 ngx_http_grpc_process_header(ngx_http_request_t *r) | |
| 1581 { | |
| 1582 ngx_str_t *status_line; | |
| 1583 ngx_int_t rc, status; | |
| 1584 ngx_buf_t *b; | |
| 1585 ngx_table_elt_t *h; | |
| 1586 ngx_http_upstream_t *u; | |
| 1587 ngx_http_grpc_ctx_t *ctx; | |
| 1588 ngx_http_upstream_header_t *hh; | |
| 1589 ngx_http_upstream_main_conf_t *umcf; | |
| 1590 | |
| 1591 u = r->upstream; | |
| 1592 b = &u->buffer; | |
| 1593 | |
| 1594 #if (NGX_DEBUG) | |
| 1595 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
| 1596 u_char buf[512]; | |
| 1597 size_t n, m; | |
| 1598 | |
| 1599 n = ngx_min(b->last - b->pos, 256); | |
| 1600 m = ngx_hex_dump(buf, b->pos, n) - buf; | |
| 1601 | |
| 1602 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1603 "grpc response: %*s%s, len: %uz", | |
| 1604 m, buf, b->last - b->pos > 256 ? "..." : "", | |
| 1605 b->last - b->pos); | |
| 1606 } | |
| 1607 #endif | |
| 1608 | |
| 1609 ctx = ngx_http_grpc_get_ctx(r); | |
| 1610 | |
| 1611 if (ctx == NULL) { | |
| 1612 return NGX_ERROR; | |
| 1613 } | |
| 1614 | |
| 1615 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module); | |
| 1616 | |
| 1617 for ( ;; ) { | |
| 1618 | |
| 1619 if (ctx->state < ngx_http_grpc_st_payload) { | |
| 1620 | |
| 1621 rc = ngx_http_grpc_parse_frame(r, ctx, b); | |
| 1622 | |
| 1623 if (rc == NGX_AGAIN) { | |
| 1624 | |
| 1625 /* | |
| 1626 * there can be a lot of window update frames, | |
| 1627 * so we reset buffer if it is empty and we haven't | |
| 1628 * started parsing headers yet | |
| 1629 */ | |
| 1630 | |
| 1631 if (!ctx->parsing_headers) { | |
| 1632 b->pos = b->start; | |
| 1633 b->last = b->pos; | |
| 1634 } | |
| 1635 | |
| 1636 return NGX_AGAIN; | |
| 1637 } | |
| 1638 | |
| 1639 if (rc == NGX_ERROR) { | |
| 1640 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1641 } | |
| 1642 | |
| 1643 /* | |
| 1644 * RFC 7540 says that implementations MUST discard frames | |
| 1645 * that have unknown or unsupported types. However, extension | |
| 1646 * frames that appear in the middle of a header block are | |
| 1647 * not permitted. Also, for obvious reasons CONTINUATION frames | |
| 1648 * cannot appear before headers, and DATA frames are not expected | |
| 1649 * to appear before all headers are parsed. | |
| 1650 */ | |
| 1651 | |
| 1652 if (ctx->type == NGX_HTTP_V2_DATA_FRAME | |
| 1653 || (ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME | |
| 1654 && !ctx->parsing_headers) | |
| 1655 || (ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME | |
| 1656 && ctx->parsing_headers)) | |
| 1657 { | |
| 1658 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1659 "upstream sent unexpected http2 frame: %d", | |
| 1660 ctx->type); | |
| 1661 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1662 } | |
| 1663 | |
| 1664 if (ctx->stream_id && ctx->stream_id != ctx->id) { | |
| 1665 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1666 "upstream sent frame for unknown stream %ui", | |
| 1667 ctx->stream_id); | |
| 1668 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1669 } | |
| 1670 } | |
| 1671 | |
| 1672 /* frame payload */ | |
| 1673 | |
| 1674 if (ctx->type == NGX_HTTP_V2_RST_STREAM_FRAME) { | |
| 1675 | |
| 1676 rc = ngx_http_grpc_parse_rst_stream(r, ctx, b); | |
| 1677 | |
| 1678 if (rc == NGX_AGAIN) { | |
| 1679 return NGX_AGAIN; | |
| 1680 } | |
| 1681 | |
| 1682 if (rc == NGX_ERROR) { | |
| 1683 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1684 } | |
| 1685 | |
| 1686 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1687 "upstream rejected request with error %ui", | |
| 1688 ctx->error); | |
| 1689 | |
| 1690 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1691 } | |
| 1692 | |
| 1693 if (ctx->type == NGX_HTTP_V2_GOAWAY_FRAME) { | |
| 1694 | |
| 1695 rc = ngx_http_grpc_parse_goaway(r, ctx, b); | |
| 1696 | |
| 1697 if (rc == NGX_AGAIN) { | |
| 1698 return NGX_AGAIN; | |
| 1699 } | |
| 1700 | |
| 1701 if (rc == NGX_ERROR) { | |
| 1702 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1703 } | |
| 1704 | |
| 1705 /* | |
| 1706 * If stream_id is lower than one we use, our | |
| 1707 * request won't be processed and needs to be retried. | |
| 1708 * If stream_id is greater or equal to the one we use, | |
| 1709 * we can continue normally (except we can't use this | |
| 1710 * connection for additional requests). If there is | |
| 1711 * a real error, the connection will be closed. | |
| 1712 */ | |
| 1713 | |
| 1714 if (ctx->stream_id < ctx->id) { | |
| 1715 | |
| 1716 /* TODO: we can retry non-idempotent requests */ | |
| 1717 | |
| 1718 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1719 "upstream sent goaway with error %ui", | |
| 1720 ctx->error); | |
| 1721 | |
| 1722 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1723 } | |
| 1724 | |
| 1725 continue; | |
| 1726 } | |
| 1727 | |
| 1728 if (ctx->type == NGX_HTTP_V2_WINDOW_UPDATE_FRAME) { | |
| 1729 | |
| 1730 rc = ngx_http_grpc_parse_window_update(r, ctx, b); | |
| 1731 | |
| 1732 if (rc == NGX_AGAIN) { | |
| 1733 return NGX_AGAIN; | |
| 1734 } | |
| 1735 | |
| 1736 if (rc == NGX_ERROR) { | |
| 1737 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1738 } | |
| 1739 | |
| 1740 if (ctx->in) { | |
| 1741 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 1742 } | |
| 1743 | |
| 1744 continue; | |
| 1745 } | |
| 1746 | |
| 1747 if (ctx->type == NGX_HTTP_V2_SETTINGS_FRAME) { | |
| 1748 | |
| 1749 rc = ngx_http_grpc_parse_settings(r, ctx, b); | |
| 1750 | |
| 1751 if (rc == NGX_AGAIN) { | |
| 1752 return NGX_AGAIN; | |
| 1753 } | |
| 1754 | |
| 1755 if (rc == NGX_ERROR) { | |
| 1756 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1757 } | |
| 1758 | |
| 1759 if (ctx->in) { | |
| 1760 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 1761 } | |
| 1762 | |
| 1763 continue; | |
| 1764 } | |
| 1765 | |
| 1766 if (ctx->type == NGX_HTTP_V2_PING_FRAME) { | |
| 1767 | |
| 1768 rc = ngx_http_grpc_parse_ping(r, ctx, b); | |
| 1769 | |
| 1770 if (rc == NGX_AGAIN) { | |
| 1771 return NGX_AGAIN; | |
| 1772 } | |
| 1773 | |
| 1774 if (rc == NGX_ERROR) { | |
| 1775 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1776 } | |
| 1777 | |
| 1778 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 1779 continue; | |
| 1780 } | |
| 1781 | |
| 1782 if (ctx->type == NGX_HTTP_V2_PUSH_PROMISE_FRAME) { | |
| 1783 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1784 "upstream sent unexpected push promise frame"); | |
| 1785 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1786 } | |
| 1787 | |
| 1788 if (ctx->type != NGX_HTTP_V2_HEADERS_FRAME | |
| 1789 && ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME) | |
| 1790 { | |
| 1791 /* priority, unknown frames */ | |
| 1792 | |
| 1793 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 1794 ctx->rest -= b->last - b->pos; | |
| 1795 b->pos = b->last; | |
| 1796 return NGX_AGAIN; | |
| 1797 } | |
| 1798 | |
| 1799 b->pos += ctx->rest; | |
| 1800 ctx->rest = 0; | |
| 1801 ctx->state = ngx_http_grpc_st_start; | |
| 1802 | |
| 1803 continue; | |
| 1804 } | |
| 1805 | |
| 1806 /* headers */ | |
| 1807 | |
| 1808 for ( ;; ) { | |
| 1809 | |
| 1810 rc = ngx_http_grpc_parse_header(r, ctx, b); | |
| 1811 | |
| 1812 if (rc == NGX_AGAIN) { | |
| 1813 break; | |
| 1814 } | |
| 1815 | |
| 1816 if (rc == NGX_OK) { | |
| 1817 | |
| 1818 /* a header line has been parsed successfully */ | |
| 1819 | |
| 1820 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1821 "grpc header: \"%V: %V\"", | |
| 1822 &ctx->name, &ctx->value); | |
| 1823 | |
| 1824 if (ctx->name.len && ctx->name.data[0] == ':') { | |
| 1825 | |
| 1826 if (ctx->name.len != sizeof(":status") - 1 | |
| 1827 || ngx_strncmp(ctx->name.data, ":status", | |
| 1828 sizeof(":status") - 1) | |
| 1829 != 0) | |
| 1830 { | |
| 1831 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1832 "upstream sent invalid header \"%V: %V\"", | |
| 1833 &ctx->name, &ctx->value); | |
| 1834 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1835 } | |
| 1836 | |
| 1837 if (ctx->status) { | |
| 1838 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1839 "upstream sent duplicate :status header"); | |
| 1840 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1841 } | |
| 1842 | |
| 1843 status_line = &ctx->value; | |
| 1844 | |
| 1845 if (status_line->len != 3) { | |
| 1846 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1847 "upstream sent invalid :status \"%V\"", | |
| 1848 status_line); | |
| 1849 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1850 } | |
| 1851 | |
| 1852 status = ngx_atoi(status_line->data, 3); | |
| 1853 | |
| 1854 if (status == NGX_ERROR) { | |
| 1855 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1856 "upstream sent invalid :status \"%V\"", | |
| 1857 status_line); | |
| 1858 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1859 } | |
| 1860 | |
| 1861 if (status < NGX_HTTP_OK) { | |
| 1862 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1863 "upstream sent unexpected :status \"%V\"", | |
| 1864 status_line); | |
| 1865 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1866 } | |
| 1867 | |
| 1868 u->headers_in.status_n = status; | |
| 1869 | |
| 1870 if (u->state && u->state->status == 0) { | |
| 1871 u->state->status = status; | |
| 1872 } | |
| 1873 | |
| 1874 ctx->status = 1; | |
| 1875 | |
| 1876 continue; | |
| 1877 | |
| 1878 } else if (!ctx->status) { | |
| 1879 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1880 "upstream sent no :status header"); | |
| 1881 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1882 } | |
| 1883 | |
| 1884 h = ngx_list_push(&u->headers_in.headers); | |
| 1885 if (h == NULL) { | |
| 1886 return NGX_ERROR; | |
| 1887 } | |
| 1888 | |
| 1889 h->key = ctx->name; | |
| 1890 h->value = ctx->value; | |
| 1891 h->lowcase_key = h->key.data; | |
| 1892 h->hash = ngx_hash_key(h->key.data, h->key.len); | |
| 1893 | |
| 1894 hh = ngx_hash_find(&umcf->headers_in_hash, h->hash, | |
| 1895 h->lowcase_key, h->key.len); | |
| 1896 | |
| 1897 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) { | |
| 1898 return NGX_ERROR; | |
| 1899 } | |
| 1900 | |
| 1901 continue; | |
| 1902 } | |
| 1903 | |
| 1904 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { | |
| 1905 | |
| 1906 /* a whole header has been parsed successfully */ | |
| 1907 | |
| 1908 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1909 "grpc header done"); | |
| 1910 | |
|
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1911 if (ctx->end_stream) { |
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1912 u->headers_in.content_length_n = 0; |
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1913 |
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1914 if (ctx->in == NULL |
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1915 && ctx->out == NULL |
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1916 && ctx->output_closed |
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1917 && !ctx->output_blocked |
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1918 && b->last == b->pos) |
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1919 { |
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1920 u->keepalive = 1; |
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1921 } |
| 7233 | 1922 } |
| 1923 | |
| 1924 return NGX_OK; | |
| 1925 } | |
| 1926 | |
| 1927 /* there was error while a header line parsing */ | |
| 1928 | |
| 1929 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1930 "upstream sent invalid header"); | |
| 1931 | |
| 1932 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1933 } | |
| 1934 | |
| 1935 /* rc == NGX_AGAIN */ | |
| 1936 | |
| 1937 if (ctx->rest == 0) { | |
| 1938 ctx->state = ngx_http_grpc_st_start; | |
| 1939 continue; | |
| 1940 } | |
| 1941 | |
| 1942 return NGX_AGAIN; | |
| 1943 } | |
| 1944 } | |
| 1945 | |
| 1946 | |
| 1947 static ngx_int_t | |
| 1948 ngx_http_grpc_filter_init(void *data) | |
| 1949 { | |
| 1950 ngx_http_grpc_ctx_t *ctx = data; | |
| 1951 | |
| 1952 ngx_http_request_t *r; | |
| 1953 ngx_http_upstream_t *u; | |
| 1954 | |
| 1955 r = ctx->request; | |
| 1956 u = r->upstream; | |
| 1957 | |
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1958 if (u->headers_in.status_n == NGX_HTTP_NO_CONTENT |
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1959 || u->headers_in.status_n == NGX_HTTP_NOT_MODIFIED |
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1960 || r->method == NGX_HTTP_HEAD) |
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1961 { |
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1962 ctx->length = 0; |
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1963 |
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1964 } else { |
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1965 ctx->length = u->headers_in.content_length_n; |
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1966 } |
| 7233 | 1967 |
| 1968 if (ctx->end_stream) { | |
|
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1969 |
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1970 if (ctx->length > 0) { |
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1971 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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1972 "upstream prematurely closed stream"); |
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1973 return NGX_ERROR; |
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1974 } |
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1975 |
| 7233 | 1976 u->length = 0; |
|
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1977 |
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1978 } else { |
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1979 u->length = 1; |
| 7233 | 1980 } |
| 1981 | |
| 1982 return NGX_OK; | |
| 1983 } | |
| 1984 | |
| 1985 | |
| 1986 static ngx_int_t | |
| 1987 ngx_http_grpc_filter(void *data, ssize_t bytes) | |
| 1988 { | |
| 1989 ngx_http_grpc_ctx_t *ctx = data; | |
| 1990 | |
| 1991 ngx_int_t rc; | |
| 1992 ngx_buf_t *b, *buf; | |
| 1993 ngx_chain_t *cl, **ll; | |
| 1994 ngx_table_elt_t *h; | |
| 1995 ngx_http_request_t *r; | |
| 1996 ngx_http_upstream_t *u; | |
| 1997 | |
| 1998 r = ctx->request; | |
| 1999 u = r->upstream; | |
| 2000 b = &u->buffer; | |
| 2001 | |
| 2002 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2003 "grpc filter bytes:%z", bytes); | |
| 2004 | |
| 2005 b->pos = b->last; | |
| 2006 b->last += bytes; | |
| 2007 | |
| 2008 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { | |
| 2009 ll = &cl->next; | |
| 2010 } | |
| 2011 | |
| 2012 for ( ;; ) { | |
| 2013 | |
| 2014 if (ctx->state < ngx_http_grpc_st_payload) { | |
| 2015 | |
| 2016 rc = ngx_http_grpc_parse_frame(r, ctx, b); | |
| 2017 | |
| 2018 if (rc == NGX_AGAIN) { | |
|
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2019 |
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2020 if (ctx->done) { |
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2021 |
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2022 if (ctx->length > 0) { |
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2023 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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2024 "upstream prematurely closed stream"); |
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2025 return NGX_ERROR; |
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2026 } |
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2027 |
|
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2028 /* |
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2029 * We have finished parsing the response and the |
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2030 * remaining control frames. If there are unsent |
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2031 * control frames, post a write event to send them. |
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2032 */ |
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2033 |
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2034 if (ctx->out) { |
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2035 ngx_post_event(u->peer.connection->write, |
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2036 &ngx_posted_events); |
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2037 return NGX_AGAIN; |
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2038 } |
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2039 |
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2040 u->length = 0; |
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2041 |
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2042 if (ctx->in == NULL |
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2043 && ctx->output_closed |
|
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2044 && !ctx->output_blocked |
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2045 && ctx->state == ngx_http_grpc_st_start) |
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2046 { |
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2047 u->keepalive = 1; |
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2048 } |
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2049 |
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2050 break; |
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2051 } |
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2052 |
| 7233 | 2053 return NGX_AGAIN; |
| 2054 } | |
| 2055 | |
| 2056 if (rc == NGX_ERROR) { | |
| 2057 return NGX_ERROR; | |
| 2058 } | |
| 2059 | |
| 2060 if ((ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME | |
| 2061 && !ctx->parsing_headers) | |
| 2062 || (ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME | |
| 2063 && ctx->parsing_headers)) | |
| 2064 { | |
| 2065 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2066 "upstream sent unexpected http2 frame: %d", | |
| 2067 ctx->type); | |
| 2068 return NGX_ERROR; | |
| 2069 } | |
| 2070 | |
| 2071 if (ctx->type == NGX_HTTP_V2_DATA_FRAME) { | |
| 2072 | |
| 2073 if (ctx->stream_id != ctx->id) { | |
| 2074 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2075 "upstream sent data frame " | |
| 2076 "for unknown stream %ui", | |
| 2077 ctx->stream_id); | |
| 2078 return NGX_ERROR; | |
| 2079 } | |
| 2080 | |
|
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Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2081 if (ctx->length != -1) { |
|
39501ce97e29
gRPC: generate error when response size is wrong.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2082 if ((off_t) ctx->rest > ctx->length) { |
|
39501ce97e29
gRPC: generate error when response size is wrong.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2083 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
|
39501ce97e29
gRPC: generate error when response size is wrong.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2084 "upstream sent response body larger " |
|
39501ce97e29
gRPC: generate error when response size is wrong.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2085 "than indicated content length"); |
|
39501ce97e29
gRPC: generate error when response size is wrong.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2086 return NGX_ERROR; |
|
39501ce97e29
gRPC: generate error when response size is wrong.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2087 } |
|
39501ce97e29
gRPC: generate error when response size is wrong.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2088 |
|
39501ce97e29
gRPC: generate error when response size is wrong.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2089 ctx->length -= ctx->rest; |
|
39501ce97e29
gRPC: generate error when response size is wrong.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2090 } |
|
39501ce97e29
gRPC: generate error when response size is wrong.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2091 |
| 7233 | 2092 if (ctx->rest > ctx->recv_window) { |
| 2093 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2094 "upstream violated stream flow control, " | |
| 2095 "received %uz data frame with window %uz", | |
| 2096 ctx->rest, ctx->recv_window); | |
| 2097 return NGX_ERROR; | |
| 2098 } | |
| 2099 | |
| 2100 if (ctx->rest > ctx->connection->recv_window) { | |
| 2101 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2102 "upstream violated connection flow control, " | |
| 2103 "received %uz data frame with window %uz", | |
| 2104 ctx->rest, ctx->connection->recv_window); | |
| 2105 return NGX_ERROR; | |
| 2106 } | |
| 2107 | |
| 2108 ctx->recv_window -= ctx->rest; | |
| 2109 ctx->connection->recv_window -= ctx->rest; | |
| 2110 | |
| 2111 if (ctx->connection->recv_window < NGX_HTTP_V2_MAX_WINDOW / 4 | |
| 2112 || ctx->recv_window < NGX_HTTP_V2_MAX_WINDOW / 4) | |
| 2113 { | |
| 2114 if (ngx_http_grpc_send_window_update(r, ctx) != NGX_OK) { | |
| 2115 return NGX_ERROR; | |
| 2116 } | |
| 2117 | |
| 2118 ngx_post_event(u->peer.connection->write, | |
| 2119 &ngx_posted_events); | |
| 2120 } | |
| 2121 } | |
| 2122 | |
| 2123 if (ctx->stream_id && ctx->stream_id != ctx->id) { | |
| 2124 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2125 "upstream sent frame for unknown stream %ui", | |
| 2126 ctx->stream_id); | |
| 2127 return NGX_ERROR; | |
| 2128 } | |
| 2129 | |
|
7646
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2130 if (ctx->stream_id && ctx->done |
|
7647
716eddd74bc2
gRPC: WINDOW_UPDATE after END_STREAM handling (ticket #1797).
Ruslan Ermilov <ru@nginx.com>
parents:
7646
diff
changeset
|
2131 && ctx->type != NGX_HTTP_V2_RST_STREAM_FRAME |
|
716eddd74bc2
gRPC: WINDOW_UPDATE after END_STREAM handling (ticket #1797).
Ruslan Ermilov <ru@nginx.com>
parents:
7646
diff
changeset
|
2132 && ctx->type != NGX_HTTP_V2_WINDOW_UPDATE_FRAME) |
|
7646
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2133 { |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2134 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2135 "upstream sent frame for closed stream %ui", |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2136 ctx->stream_id); |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2137 return NGX_ERROR; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2138 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2139 |
| 7233 | 2140 ctx->padding = 0; |
| 2141 } | |
| 2142 | |
| 2143 if (ctx->state == ngx_http_grpc_st_padding) { | |
| 2144 | |
| 2145 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2146 ctx->rest -= b->last - b->pos; | |
| 2147 b->pos = b->last; | |
| 2148 return NGX_AGAIN; | |
| 2149 } | |
| 2150 | |
| 2151 b->pos += ctx->rest; | |
| 2152 ctx->rest = 0; | |
| 2153 ctx->state = ngx_http_grpc_st_start; | |
| 2154 | |
| 2155 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2156 ctx->done = 1; |
| 7233 | 2157 } |
| 2158 | |
| 2159 continue; | |
| 2160 } | |
| 2161 | |
| 2162 /* frame payload */ | |
| 2163 | |
| 2164 if (ctx->type == NGX_HTTP_V2_RST_STREAM_FRAME) { | |
| 2165 | |
| 2166 rc = ngx_http_grpc_parse_rst_stream(r, ctx, b); | |
| 2167 | |
| 2168 if (rc == NGX_AGAIN) { | |
| 2169 return NGX_AGAIN; | |
| 2170 } | |
| 2171 | |
| 2172 if (rc == NGX_ERROR) { | |
| 2173 return NGX_ERROR; | |
| 2174 } | |
| 2175 | |
|
7646
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2176 if (ctx->error || !ctx->done) { |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2177 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2178 "upstream rejected request with error %ui", |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2179 ctx->error); |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2180 return NGX_ERROR; |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2181 } |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2182 |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2183 if (ctx->rst) { |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2184 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2185 "upstream sent frame for closed stream %ui", |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2186 ctx->stream_id); |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2187 return NGX_ERROR; |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2188 } |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2189 |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2190 ctx->rst = 1; |
| 7233 | 2191 } |
| 2192 | |
| 2193 if (ctx->type == NGX_HTTP_V2_GOAWAY_FRAME) { | |
| 2194 | |
| 2195 rc = ngx_http_grpc_parse_goaway(r, ctx, b); | |
| 2196 | |
| 2197 if (rc == NGX_AGAIN) { | |
| 2198 return NGX_AGAIN; | |
| 2199 } | |
| 2200 | |
| 2201 if (rc == NGX_ERROR) { | |
| 2202 return NGX_ERROR; | |
| 2203 } | |
| 2204 | |
| 2205 /* | |
| 2206 * If stream_id is lower than one we use, our | |
| 2207 * request won't be processed and needs to be retried. | |
| 2208 * If stream_id is greater or equal to the one we use, | |
| 2209 * we can continue normally (except we can't use this | |
| 2210 * connection for additional requests). If there is | |
| 2211 * a real error, the connection will be closed. | |
| 2212 */ | |
| 2213 | |
| 2214 if (ctx->stream_id < ctx->id) { | |
| 2215 | |
| 2216 /* TODO: we can retry non-idempotent requests */ | |
| 2217 | |
| 2218 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2219 "upstream sent goaway with error %ui", | |
| 2220 ctx->error); | |
| 2221 | |
| 2222 return NGX_ERROR; | |
| 2223 } | |
| 2224 | |
| 2225 continue; | |
| 2226 } | |
| 2227 | |
| 2228 if (ctx->type == NGX_HTTP_V2_WINDOW_UPDATE_FRAME) { | |
| 2229 | |
| 2230 rc = ngx_http_grpc_parse_window_update(r, ctx, b); | |
| 2231 | |
| 2232 if (rc == NGX_AGAIN) { | |
| 2233 return NGX_AGAIN; | |
| 2234 } | |
| 2235 | |
| 2236 if (rc == NGX_ERROR) { | |
| 2237 return NGX_ERROR; | |
| 2238 } | |
| 2239 | |
| 2240 if (ctx->in) { | |
| 2241 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 2242 } | |
| 2243 | |
| 2244 continue; | |
| 2245 } | |
| 2246 | |
| 2247 if (ctx->type == NGX_HTTP_V2_SETTINGS_FRAME) { | |
| 2248 | |
| 2249 rc = ngx_http_grpc_parse_settings(r, ctx, b); | |
| 2250 | |
| 2251 if (rc == NGX_AGAIN) { | |
| 2252 return NGX_AGAIN; | |
| 2253 } | |
| 2254 | |
| 2255 if (rc == NGX_ERROR) { | |
| 2256 return NGX_ERROR; | |
| 2257 } | |
| 2258 | |
| 2259 if (ctx->in) { | |
| 2260 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 2261 } | |
| 2262 | |
| 2263 continue; | |
| 2264 } | |
| 2265 | |
| 2266 if (ctx->type == NGX_HTTP_V2_PING_FRAME) { | |
| 2267 | |
| 2268 rc = ngx_http_grpc_parse_ping(r, ctx, b); | |
| 2269 | |
| 2270 if (rc == NGX_AGAIN) { | |
| 2271 return NGX_AGAIN; | |
| 2272 } | |
| 2273 | |
| 2274 if (rc == NGX_ERROR) { | |
| 2275 return NGX_ERROR; | |
| 2276 } | |
| 2277 | |
| 2278 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 2279 continue; | |
| 2280 } | |
| 2281 | |
| 2282 if (ctx->type == NGX_HTTP_V2_PUSH_PROMISE_FRAME) { | |
| 2283 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2284 "upstream sent unexpected push promise frame"); | |
| 2285 return NGX_ERROR; | |
| 2286 } | |
| 2287 | |
| 2288 if (ctx->type == NGX_HTTP_V2_HEADERS_FRAME | |
| 2289 || ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME) | |
| 2290 { | |
| 2291 for ( ;; ) { | |
| 2292 | |
| 2293 rc = ngx_http_grpc_parse_header(r, ctx, b); | |
| 2294 | |
| 2295 if (rc == NGX_AGAIN) { | |
| 2296 break; | |
| 2297 } | |
| 2298 | |
| 2299 if (rc == NGX_OK) { | |
| 2300 | |
| 2301 /* a header line has been parsed successfully */ | |
| 2302 | |
| 2303 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2304 "grpc trailer: \"%V: %V\"", | |
| 2305 &ctx->name, &ctx->value); | |
| 2306 | |
| 2307 if (ctx->name.len && ctx->name.data[0] == ':') { | |
| 2308 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2309 "upstream sent invalid " | |
| 2310 "trailer \"%V: %V\"", | |
| 2311 &ctx->name, &ctx->value); | |
| 2312 return NGX_ERROR; | |
| 2313 } | |
| 2314 | |
| 2315 h = ngx_list_push(&u->headers_in.trailers); | |
| 2316 if (h == NULL) { | |
| 2317 return NGX_ERROR; | |
| 2318 } | |
| 2319 | |
| 2320 h->key = ctx->name; | |
| 2321 h->value = ctx->value; | |
| 2322 h->lowcase_key = h->key.data; | |
| 2323 h->hash = ngx_hash_key(h->key.data, h->key.len); | |
| 2324 | |
| 2325 continue; | |
| 2326 } | |
| 2327 | |
| 2328 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { | |
| 2329 | |
| 2330 /* a whole header has been parsed successfully */ | |
| 2331 | |
| 2332 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2333 "grpc trailer done"); | |
| 2334 | |
| 2335 if (ctx->end_stream) { | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2336 ctx->done = 1; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2337 break; |
| 7233 | 2338 } |
| 2339 | |
| 2340 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2341 "upstream sent trailer without " | |
| 2342 "end stream flag"); | |
| 2343 return NGX_ERROR; | |
| 2344 } | |
| 2345 | |
| 2346 /* there was error while a header line parsing */ | |
| 2347 | |
| 2348 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2349 "upstream sent invalid trailer"); | |
| 2350 | |
| 2351 return NGX_ERROR; | |
| 2352 } | |
| 2353 | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2354 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2355 continue; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2356 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2357 |
| 7233 | 2358 /* rc == NGX_AGAIN */ |
| 2359 | |
| 2360 if (ctx->rest == 0) { | |
| 2361 ctx->state = ngx_http_grpc_st_start; | |
| 2362 continue; | |
| 2363 } | |
| 2364 | |
| 2365 return NGX_AGAIN; | |
| 2366 } | |
| 2367 | |
| 2368 if (ctx->type != NGX_HTTP_V2_DATA_FRAME) { | |
| 2369 | |
| 2370 /* priority, unknown frames */ | |
| 2371 | |
| 2372 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2373 ctx->rest -= b->last - b->pos; | |
| 2374 b->pos = b->last; | |
| 2375 return NGX_AGAIN; | |
| 2376 } | |
| 2377 | |
| 2378 b->pos += ctx->rest; | |
| 2379 ctx->rest = 0; | |
| 2380 ctx->state = ngx_http_grpc_st_start; | |
| 2381 | |
| 2382 continue; | |
| 2383 } | |
| 2384 | |
| 2385 /* | |
| 2386 * data frame: | |
| 2387 * | |
| 2388 * +---------------+ | |
| 2389 * |Pad Length? (8)| | |
| 2390 * +---------------+-----------------------------------------------+ | |
| 2391 * | Data (*) ... | |
| 2392 * +---------------------------------------------------------------+ | |
| 2393 * | Padding (*) ... | |
| 2394 * +---------------------------------------------------------------+ | |
| 2395 */ | |
| 2396 | |
| 2397 if (ctx->flags & NGX_HTTP_V2_PADDED_FLAG) { | |
| 2398 | |
| 2399 if (ctx->rest == 0) { | |
| 2400 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2401 "upstream sent too short http2 frame"); | |
| 2402 return NGX_ERROR; | |
| 2403 } | |
| 2404 | |
| 2405 if (b->pos == b->last) { | |
| 2406 return NGX_AGAIN; | |
| 2407 } | |
| 2408 | |
| 2409 ctx->flags &= ~NGX_HTTP_V2_PADDED_FLAG; | |
| 2410 ctx->padding = *b->pos++; | |
| 2411 ctx->rest -= 1; | |
| 2412 | |
| 2413 if (ctx->padding > ctx->rest) { | |
| 2414 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2415 "upstream sent http2 frame with too long " | |
| 2416 "padding: %d in frame %uz", | |
| 2417 ctx->padding, ctx->rest); | |
| 2418 return NGX_ERROR; | |
| 2419 } | |
| 2420 | |
| 2421 continue; | |
| 2422 } | |
| 2423 | |
| 2424 if (ctx->rest == ctx->padding) { | |
| 2425 goto done; | |
| 2426 } | |
| 2427 | |
| 2428 if (b->pos == b->last) { | |
| 2429 return NGX_AGAIN; | |
| 2430 } | |
| 2431 | |
| 2432 cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs); | |
| 2433 if (cl == NULL) { | |
| 2434 return NGX_ERROR; | |
| 2435 } | |
| 2436 | |
| 2437 *ll = cl; | |
| 2438 ll = &cl->next; | |
| 2439 | |
| 2440 buf = cl->buf; | |
| 2441 | |
| 2442 buf->flush = 1; | |
| 2443 buf->memory = 1; | |
| 2444 | |
| 2445 buf->pos = b->pos; | |
| 2446 buf->tag = u->output.tag; | |
| 2447 | |
| 2448 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2449 "grpc output buf %p", buf->pos); | |
| 2450 | |
| 2451 if (b->last - b->pos < (ssize_t) ctx->rest - ctx->padding) { | |
| 2452 | |
| 2453 ctx->rest -= b->last - b->pos; | |
| 2454 b->pos = b->last; | |
| 2455 buf->last = b->pos; | |
| 2456 | |
| 2457 return NGX_AGAIN; | |
| 2458 } | |
| 2459 | |
| 2460 b->pos += ctx->rest - ctx->padding; | |
| 2461 buf->last = b->pos; | |
| 2462 ctx->rest = ctx->padding; | |
| 2463 | |
| 2464 done: | |
| 2465 | |
| 2466 if (ctx->padding) { | |
| 2467 ctx->state = ngx_http_grpc_st_padding; | |
| 2468 continue; | |
| 2469 } | |
| 2470 | |
| 2471 ctx->state = ngx_http_grpc_st_start; | |
| 2472 | |
| 2473 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
|
7349
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gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2474 ctx->done = 1; |
| 7233 | 2475 } |
| 2476 } | |
| 2477 | |
| 2478 return NGX_OK; | |
| 2479 } | |
| 2480 | |
| 2481 | |
| 2482 static ngx_int_t | |
| 2483 ngx_http_grpc_parse_frame(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 2484 ngx_buf_t *b) | |
| 2485 { | |
| 2486 u_char ch, *p; | |
| 2487 ngx_http_grpc_state_e state; | |
| 2488 | |
| 2489 state = ctx->state; | |
| 2490 | |
| 2491 for (p = b->pos; p < b->last; p++) { | |
| 2492 ch = *p; | |
| 2493 | |
| 2494 #if 0 | |
| 2495 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2496 "grpc frame byte: %02Xd, s:%d", ch, state); | |
| 2497 #endif | |
| 2498 | |
| 2499 switch (state) { | |
| 2500 | |
| 2501 case ngx_http_grpc_st_start: | |
| 2502 ctx->rest = ch << 16; | |
| 2503 state = ngx_http_grpc_st_length_2; | |
| 2504 break; | |
| 2505 | |
| 2506 case ngx_http_grpc_st_length_2: | |
| 2507 ctx->rest |= ch << 8; | |
| 2508 state = ngx_http_grpc_st_length_3; | |
| 2509 break; | |
| 2510 | |
| 2511 case ngx_http_grpc_st_length_3: | |
| 2512 ctx->rest |= ch; | |
| 2513 | |
| 2514 if (ctx->rest > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
| 2515 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2516 "upstream sent too large http2 frame: %uz", | |
| 2517 ctx->rest); | |
| 2518 return NGX_ERROR; | |
| 2519 } | |
| 2520 | |
| 2521 state = ngx_http_grpc_st_type; | |
| 2522 break; | |
| 2523 | |
| 2524 case ngx_http_grpc_st_type: | |
| 2525 ctx->type = ch; | |
| 2526 state = ngx_http_grpc_st_flags; | |
| 2527 break; | |
| 2528 | |
| 2529 case ngx_http_grpc_st_flags: | |
| 2530 ctx->flags = ch; | |
| 2531 state = ngx_http_grpc_st_stream_id; | |
| 2532 break; | |
| 2533 | |
| 2534 case ngx_http_grpc_st_stream_id: | |
| 2535 ctx->stream_id = (ch & 0x7f) << 24; | |
| 2536 state = ngx_http_grpc_st_stream_id_2; | |
| 2537 break; | |
| 2538 | |
| 2539 case ngx_http_grpc_st_stream_id_2: | |
| 2540 ctx->stream_id |= ch << 16; | |
| 2541 state = ngx_http_grpc_st_stream_id_3; | |
| 2542 break; | |
| 2543 | |
| 2544 case ngx_http_grpc_st_stream_id_3: | |
| 2545 ctx->stream_id |= ch << 8; | |
| 2546 state = ngx_http_grpc_st_stream_id_4; | |
| 2547 break; | |
| 2548 | |
| 2549 case ngx_http_grpc_st_stream_id_4: | |
| 2550 ctx->stream_id |= ch; | |
| 2551 | |
| 2552 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2553 "grpc frame: %d, len: %uz, f:%d, i:%ui", | |
| 2554 ctx->type, ctx->rest, ctx->flags, ctx->stream_id); | |
| 2555 | |
| 2556 b->pos = p + 1; | |
| 2557 | |
| 2558 ctx->state = ngx_http_grpc_st_payload; | |
| 2559 ctx->frame_state = 0; | |
| 2560 | |
| 2561 return NGX_OK; | |
| 2562 | |
| 2563 /* suppress warning */ | |
| 2564 case ngx_http_grpc_st_payload: | |
| 2565 case ngx_http_grpc_st_padding: | |
| 2566 break; | |
| 2567 } | |
| 2568 } | |
| 2569 | |
| 2570 b->pos = p; | |
| 2571 ctx->state = state; | |
| 2572 | |
| 2573 return NGX_AGAIN; | |
| 2574 } | |
| 2575 | |
| 2576 | |
| 2577 static ngx_int_t | |
| 2578 ngx_http_grpc_parse_header(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 2579 ngx_buf_t *b) | |
| 2580 { | |
| 2581 u_char ch, *p, *last; | |
| 2582 size_t min; | |
| 2583 ngx_int_t rc; | |
| 2584 enum { | |
| 2585 sw_start = 0, | |
| 2586 sw_padding_length, | |
| 2587 sw_dependency, | |
| 2588 sw_dependency_2, | |
| 2589 sw_dependency_3, | |
| 2590 sw_dependency_4, | |
| 2591 sw_weight, | |
| 2592 sw_fragment, | |
| 2593 sw_padding | |
| 2594 } state; | |
| 2595 | |
| 2596 state = ctx->frame_state; | |
| 2597 | |
| 2598 if (state == sw_start) { | |
| 2599 | |
| 2600 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2601 "grpc parse header: start"); | |
| 2602 | |
| 2603 if (ctx->type == NGX_HTTP_V2_HEADERS_FRAME) { | |
| 2604 ctx->parsing_headers = 1; | |
| 2605 ctx->fragment_state = 0; | |
| 2606 | |
| 2607 min = (ctx->flags & NGX_HTTP_V2_PADDED_FLAG ? 1 : 0) | |
| 2608 + (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG ? 5 : 0); | |
| 2609 | |
| 2610 if (ctx->rest < min) { | |
| 2611 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2612 "upstream sent headers frame " | |
| 2613 "with invalid length: %uz", | |
| 2614 ctx->rest); | |
| 2615 return NGX_ERROR; | |
| 2616 } | |
| 2617 | |
| 2618 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
| 2619 ctx->end_stream = 1; | |
| 2620 } | |
| 2621 | |
| 2622 if (ctx->flags & NGX_HTTP_V2_PADDED_FLAG) { | |
| 2623 state = sw_padding_length; | |
| 2624 | |
| 2625 } else if (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG) { | |
| 2626 state = sw_dependency; | |
| 2627 | |
| 2628 } else { | |
| 2629 state = sw_fragment; | |
| 2630 } | |
| 2631 | |
| 2632 } else if (ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME) { | |
| 2633 state = sw_fragment; | |
| 2634 } | |
| 2635 | |
| 2636 ctx->padding = 0; | |
|
7242
25a4353633a0
gRPC: fixed missing state save in frame header parsing.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7240
diff
changeset
|
2637 ctx->frame_state = state; |
| 7233 | 2638 } |
| 2639 | |
| 2640 if (state < sw_fragment) { | |
| 2641 | |
| 2642 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2643 last = b->last; | |
| 2644 | |
| 2645 } else { | |
| 2646 last = b->pos + ctx->rest; | |
| 2647 } | |
| 2648 | |
| 2649 for (p = b->pos; p < last; p++) { | |
| 2650 ch = *p; | |
| 2651 | |
| 2652 #if 0 | |
| 2653 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2654 "grpc header byte: %02Xd s:%d", ch, state); | |
| 2655 #endif | |
| 2656 | |
| 2657 /* | |
| 2658 * headers frame: | |
| 2659 * | |
| 2660 * +---------------+ | |
| 2661 * |Pad Length? (8)| | |
| 2662 * +-+-------------+----------------------------------------------+ | |
| 2663 * |E| Stream Dependency? (31) | | |
| 2664 * +-+-------------+----------------------------------------------+ | |
| 2665 * | Weight? (8) | | |
| 2666 * +-+-------------+----------------------------------------------+ | |
| 2667 * | Header Block Fragment (*) ... | |
| 2668 * +--------------------------------------------------------------+ | |
| 2669 * | Padding (*) ... | |
| 2670 * +--------------------------------------------------------------+ | |
| 2671 */ | |
| 2672 | |
| 2673 switch (state) { | |
| 2674 | |
| 2675 case sw_padding_length: | |
| 2676 | |
| 2677 ctx->padding = ch; | |
| 2678 | |
| 2679 if (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG) { | |
| 2680 state = sw_dependency; | |
| 2681 break; | |
| 2682 } | |
| 2683 | |
| 2684 goto fragment; | |
| 2685 | |
| 2686 case sw_dependency: | |
| 2687 state = sw_dependency_2; | |
| 2688 break; | |
| 2689 | |
| 2690 case sw_dependency_2: | |
| 2691 state = sw_dependency_3; | |
| 2692 break; | |
| 2693 | |
| 2694 case sw_dependency_3: | |
| 2695 state = sw_dependency_4; | |
| 2696 break; | |
| 2697 | |
| 2698 case sw_dependency_4: | |
| 2699 state = sw_weight; | |
| 2700 break; | |
| 2701 | |
| 2702 case sw_weight: | |
| 2703 goto fragment; | |
| 2704 | |
| 2705 /* suppress warning */ | |
| 2706 case sw_start: | |
| 2707 case sw_fragment: | |
| 2708 case sw_padding: | |
| 2709 break; | |
| 2710 } | |
| 2711 } | |
| 2712 | |
| 2713 ctx->rest -= p - b->pos; | |
| 2714 b->pos = p; | |
| 2715 | |
| 2716 ctx->frame_state = state; | |
| 2717 return NGX_AGAIN; | |
| 2718 | |
| 2719 fragment: | |
| 2720 | |
| 2721 p++; | |
| 2722 ctx->rest -= p - b->pos; | |
| 2723 b->pos = p; | |
| 2724 | |
| 2725 if (ctx->padding > ctx->rest) { | |
| 2726 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2727 "upstream sent http2 frame with too long " | |
| 2728 "padding: %d in frame %uz", | |
| 2729 ctx->padding, ctx->rest); | |
| 2730 return NGX_ERROR; | |
| 2731 } | |
| 2732 | |
| 2733 state = sw_fragment; | |
| 2734 ctx->frame_state = state; | |
| 2735 } | |
| 2736 | |
| 2737 if (state == sw_fragment) { | |
| 2738 | |
| 2739 rc = ngx_http_grpc_parse_fragment(r, ctx, b); | |
| 2740 | |
| 2741 if (rc == NGX_AGAIN) { | |
| 2742 return NGX_AGAIN; | |
| 2743 } | |
| 2744 | |
| 2745 if (rc == NGX_ERROR) { | |
| 2746 return NGX_ERROR; | |
| 2747 } | |
| 2748 | |
| 2749 if (rc == NGX_OK) { | |
| 2750 return NGX_OK; | |
| 2751 } | |
| 2752 | |
| 2753 /* rc == NGX_DONE */ | |
| 2754 | |
| 2755 state = sw_padding; | |
| 2756 ctx->frame_state = state; | |
| 2757 } | |
| 2758 | |
| 2759 if (state == sw_padding) { | |
| 2760 | |
| 2761 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2762 | |
| 2763 ctx->rest -= b->last - b->pos; | |
| 2764 b->pos = b->last; | |
| 2765 | |
| 2766 return NGX_AGAIN; | |
| 2767 } | |
| 2768 | |
| 2769 b->pos += ctx->rest; | |
| 2770 ctx->rest = 0; | |
| 2771 | |
| 2772 ctx->state = ngx_http_grpc_st_start; | |
| 2773 | |
| 2774 if (ctx->flags & NGX_HTTP_V2_END_HEADERS_FLAG) { | |
| 2775 | |
| 2776 if (ctx->fragment_state) { | |
| 2777 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2778 "upstream sent truncated http2 header"); | |
| 2779 return NGX_ERROR; | |
| 2780 } | |
| 2781 | |
| 2782 ctx->parsing_headers = 0; | |
| 2783 | |
| 2784 return NGX_HTTP_PARSE_HEADER_DONE; | |
| 2785 } | |
| 2786 | |
| 2787 return NGX_AGAIN; | |
| 2788 } | |
| 2789 | |
| 2790 /* unreachable */ | |
| 2791 | |
| 2792 return NGX_ERROR; | |
| 2793 } | |
| 2794 | |
| 2795 | |
| 2796 static ngx_int_t | |
| 2797 ngx_http_grpc_parse_fragment(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 2798 ngx_buf_t *b) | |
| 2799 { | |
| 2800 u_char ch, *p, *last; | |
| 2801 size_t size; | |
| 2802 ngx_uint_t index, size_update; | |
| 2803 enum { | |
| 2804 sw_start = 0, | |
| 2805 sw_index, | |
| 2806 sw_name_length, | |
| 2807 sw_name_length_2, | |
| 2808 sw_name_length_3, | |
| 2809 sw_name_length_4, | |
| 2810 sw_name, | |
| 2811 sw_name_bytes, | |
| 2812 sw_value_length, | |
| 2813 sw_value_length_2, | |
| 2814 sw_value_length_3, | |
| 2815 sw_value_length_4, | |
| 2816 sw_value, | |
| 2817 sw_value_bytes | |
| 2818 } state; | |
| 2819 | |
| 2820 /* header block fragment */ | |
| 2821 | |
| 2822 #if 0 | |
| 2823 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2824 "grpc header fragment %p:%p rest:%uz", | |
| 2825 b->pos, b->last, ctx->rest); | |
| 2826 #endif | |
| 2827 | |
| 2828 if (b->last - b->pos < (ssize_t) ctx->rest - ctx->padding) { | |
| 2829 last = b->last; | |
| 2830 | |
| 2831 } else { | |
| 2832 last = b->pos + ctx->rest - ctx->padding; | |
| 2833 } | |
| 2834 | |
| 2835 state = ctx->fragment_state; | |
| 2836 | |
| 2837 for (p = b->pos; p < last; p++) { | |
| 2838 ch = *p; | |
| 2839 | |
| 2840 #if 0 | |
| 2841 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2842 "grpc header byte: %02Xd s:%d", ch, state); | |
| 2843 #endif | |
| 2844 | |
| 2845 switch (state) { | |
| 2846 | |
| 2847 case sw_start: | |
| 2848 ctx->index = 0; | |
| 2849 | |
| 2850 if ((ch & 0x80) == 0x80) { | |
| 2851 /* | |
| 2852 * indexed header: | |
| 2853 * | |
| 2854 * 0 1 2 3 4 5 6 7 | |
| 2855 * +---+---+---+---+---+---+---+---+ | |
| 2856 * | 1 | Index (7+) | | |
| 2857 * +---+---------------------------+ | |
| 2858 */ | |
| 2859 | |
| 2860 index = ch & ~0x80; | |
| 2861 | |
| 2862 if (index == 0 || index > 61) { | |
| 2863 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2864 "upstream sent invalid http2 " | |
| 2865 "table index: %ui", index); | |
| 2866 return NGX_ERROR; | |
| 2867 } | |
| 2868 | |
| 2869 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2870 "grpc indexed header: %ui", index); | |
| 2871 | |
| 2872 ctx->index = index; | |
| 2873 ctx->literal = 0; | |
| 2874 | |
| 2875 goto done; | |
| 2876 | |
| 2877 } else if ((ch & 0xc0) == 0x40) { | |
| 2878 /* | |
| 2879 * literal header with incremental indexing: | |
| 2880 * | |
| 2881 * 0 1 2 3 4 5 6 7 | |
| 2882 * +---+---+---+---+---+---+---+---+ | |
| 2883 * | 0 | 1 | Index (6+) | | |
| 2884 * +---+---+-----------------------+ | |
| 2885 * | H | Value Length (7+) | | |
| 2886 * +---+---------------------------+ | |
| 2887 * | Value String (Length octets) | | |
| 2888 * +-------------------------------+ | |
| 2889 * | |
| 2890 * 0 1 2 3 4 5 6 7 | |
| 2891 * +---+---+---+---+---+---+---+---+ | |
| 2892 * | 0 | 1 | 0 | | |
| 2893 * +---+---+-----------------------+ | |
| 2894 * | H | Name Length (7+) | | |
| 2895 * +---+---------------------------+ | |
| 2896 * | Name String (Length octets) | | |
| 2897 * +---+---------------------------+ | |
| 2898 * | H | Value Length (7+) | | |
| 2899 * +---+---------------------------+ | |
| 2900 * | Value String (Length octets) | | |
| 2901 * +-------------------------------+ | |
| 2902 */ | |
| 2903 | |
| 2904 index = ch & ~0xc0; | |
| 2905 | |
| 2906 if (index > 61) { | |
| 2907 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2908 "upstream sent invalid http2 " | |
| 2909 "table index: %ui", index); | |
| 2910 return NGX_ERROR; | |
| 2911 } | |
| 2912 | |
| 2913 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2914 "grpc literal header: %ui", index); | |
| 2915 | |
| 2916 if (index == 0) { | |
| 2917 state = sw_name_length; | |
| 2918 break; | |
| 2919 } | |
| 2920 | |
| 2921 ctx->index = index; | |
| 2922 ctx->literal = 1; | |
| 2923 | |
| 2924 state = sw_value_length; | |
| 2925 break; | |
| 2926 | |
| 2927 } else if ((ch & 0xe0) == 0x20) { | |
| 2928 /* | |
| 2929 * dynamic table size update: | |
| 2930 * | |
| 2931 * 0 1 2 3 4 5 6 7 | |
| 2932 * +---+---+---+---+---+---+---+---+ | |
| 2933 * | 0 | 0 | 1 | Max size (5+) | | |
| 2934 * +---+---------------------------+ | |
| 2935 */ | |
| 2936 | |
| 2937 size_update = ch & ~0xe0; | |
| 2938 | |
| 2939 if (size_update > 0) { | |
| 2940 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2941 "upstream sent invalid http2 " | |
| 2942 "dynamic table size update: %ui", | |
| 2943 size_update); | |
| 2944 return NGX_ERROR; | |
| 2945 } | |
| 2946 | |
| 2947 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2948 "grpc table size update: %ui", size_update); | |
| 2949 | |
| 2950 break; | |
| 2951 | |
| 2952 } else if ((ch & 0xf0) == 0x10) { | |
| 2953 /* | |
| 2954 * literal header field never indexed: | |
| 2955 * | |
| 2956 * 0 1 2 3 4 5 6 7 | |
| 2957 * +---+---+---+---+---+---+---+---+ | |
| 2958 * | 0 | 0 | 0 | 1 | Index (4+) | | |
| 2959 * +---+---+-----------------------+ | |
| 2960 * | H | Value Length (7+) | | |
| 2961 * +---+---------------------------+ | |
| 2962 * | Value String (Length octets) | | |
| 2963 * +-------------------------------+ | |
| 2964 * | |
| 2965 * 0 1 2 3 4 5 6 7 | |
| 2966 * +---+---+---+---+---+---+---+---+ | |
| 2967 * | 0 | 0 | 0 | 1 | 0 | | |
| 2968 * +---+---+-----------------------+ | |
| 2969 * | H | Name Length (7+) | | |
| 2970 * +---+---------------------------+ | |
| 2971 * | Name String (Length octets) | | |
| 2972 * +---+---------------------------+ | |
| 2973 * | H | Value Length (7+) | | |
| 2974 * +---+---------------------------+ | |
| 2975 * | Value String (Length octets) | | |
| 2976 * +-------------------------------+ | |
| 2977 */ | |
| 2978 | |
| 2979 index = ch & ~0xf0; | |
| 2980 | |
| 2981 if (index == 0x0f) { | |
| 2982 ctx->index = index; | |
| 2983 ctx->literal = 1; | |
| 2984 state = sw_index; | |
| 2985 break; | |
| 2986 } | |
| 2987 | |
| 2988 if (index == 0) { | |
| 2989 state = sw_name_length; | |
| 2990 break; | |
| 2991 } | |
| 2992 | |
| 2993 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2994 "grpc literal header never indexed: %ui", | |
| 2995 index); | |
| 2996 | |
| 2997 ctx->index = index; | |
| 2998 ctx->literal = 1; | |
| 2999 | |
| 3000 state = sw_value_length; | |
| 3001 break; | |
| 3002 | |
| 3003 } else if ((ch & 0xf0) == 0x00) { | |
| 3004 /* | |
| 3005 * literal header field without indexing: | |
| 3006 * | |
| 3007 * 0 1 2 3 4 5 6 7 | |
| 3008 * +---+---+---+---+---+---+---+---+ | |
| 3009 * | 0 | 0 | 0 | 0 | Index (4+) | | |
| 3010 * +---+---+-----------------------+ | |
| 3011 * | H | Value Length (7+) | | |
| 3012 * +---+---------------------------+ | |
| 3013 * | Value String (Length octets) | | |
| 3014 * +-------------------------------+ | |
| 3015 * | |
| 3016 * 0 1 2 3 4 5 6 7 | |
| 3017 * +---+---+---+---+---+---+---+---+ | |
| 3018 * | 0 | 0 | 0 | 0 | 0 | | |
| 3019 * +---+---+-----------------------+ | |
| 3020 * | H | Name Length (7+) | | |
| 3021 * +---+---------------------------+ | |
| 3022 * | Name String (Length octets) | | |
| 3023 * +---+---------------------------+ | |
| 3024 * | H | Value Length (7+) | | |
| 3025 * +---+---------------------------+ | |
| 3026 * | Value String (Length octets) | | |
| 3027 * +-------------------------------+ | |
| 3028 */ | |
| 3029 | |
| 3030 index = ch & ~0xf0; | |
| 3031 | |
| 3032 if (index == 0x0f) { | |
| 3033 ctx->index = index; | |
| 3034 ctx->literal = 1; | |
| 3035 state = sw_index; | |
| 3036 break; | |
| 3037 } | |
| 3038 | |
| 3039 if (index == 0) { | |
| 3040 state = sw_name_length; | |
| 3041 break; | |
| 3042 } | |
| 3043 | |
| 3044 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3045 "grpc literal header without indexing: %ui", | |
| 3046 index); | |
| 3047 | |
| 3048 ctx->index = index; | |
| 3049 ctx->literal = 1; | |
| 3050 | |
| 3051 state = sw_value_length; | |
| 3052 break; | |
| 3053 } | |
| 3054 | |
| 3055 /* not reached */ | |
| 3056 | |
| 3057 return NGX_ERROR; | |
| 3058 | |
| 3059 case sw_index: | |
| 3060 ctx->index = ctx->index + (ch & ~0x80); | |
| 3061 | |
| 3062 if (ch & 0x80) { | |
| 3063 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3064 "upstream sent http2 table index " | |
| 3065 "with continuation flag"); | |
| 3066 return NGX_ERROR; | |
| 3067 } | |
| 3068 | |
| 3069 if (ctx->index > 61) { | |
| 3070 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3071 "upstream sent invalid http2 " | |
| 3072 "table index: %ui", ctx->index); | |
| 3073 return NGX_ERROR; | |
| 3074 } | |
| 3075 | |
| 3076 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3077 "grpc header index: %ui", ctx->index); | |
| 3078 | |
| 3079 state = sw_value_length; | |
| 3080 break; | |
| 3081 | |
| 3082 case sw_name_length: | |
| 3083 ctx->field_huffman = ch & 0x80 ? 1 : 0; | |
| 3084 ctx->field_length = ch & ~0x80; | |
| 3085 | |
| 3086 if (ctx->field_length == 0x7f) { | |
| 3087 state = sw_name_length_2; | |
| 3088 break; | |
| 3089 } | |
| 3090 | |
| 3091 if (ctx->field_length == 0) { | |
| 3092 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3093 "upstream sent zero http2 " | |
| 3094 "header name length"); | |
| 3095 return NGX_ERROR; | |
| 3096 } | |
| 3097 | |
| 3098 state = sw_name; | |
| 3099 break; | |
| 3100 | |
| 3101 case sw_name_length_2: | |
| 3102 ctx->field_length += ch & ~0x80; | |
| 3103 | |
| 3104 if (ch & 0x80) { | |
| 3105 state = sw_name_length_3; | |
| 3106 break; | |
| 3107 } | |
| 3108 | |
| 3109 state = sw_name; | |
| 3110 break; | |
| 3111 | |
| 3112 case sw_name_length_3: | |
| 3113 ctx->field_length += (ch & ~0x80) << 7; | |
| 3114 | |
| 3115 if (ch & 0x80) { | |
| 3116 state = sw_name_length_4; | |
| 3117 break; | |
| 3118 } | |
| 3119 | |
| 3120 state = sw_name; | |
| 3121 break; | |
| 3122 | |
| 3123 case sw_name_length_4: | |
| 3124 ctx->field_length += (ch & ~0x80) << 14; | |
| 3125 | |
| 3126 if (ch & 0x80) { | |
| 3127 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3128 "upstream sent too large http2 " | |
| 3129 "header name length"); | |
| 3130 return NGX_ERROR; | |
| 3131 } | |
| 3132 | |
| 3133 state = sw_name; | |
| 3134 break; | |
| 3135 | |
| 3136 case sw_name: | |
| 3137 ctx->name.len = ctx->field_huffman ? | |
| 3138 ctx->field_length * 8 / 5 : ctx->field_length; | |
| 3139 | |
| 3140 ctx->name.data = ngx_pnalloc(r->pool, ctx->name.len + 1); | |
| 3141 if (ctx->name.data == NULL) { | |
| 3142 return NGX_ERROR; | |
| 3143 } | |
| 3144 | |
| 3145 ctx->field_end = ctx->name.data; | |
| 3146 ctx->field_rest = ctx->field_length; | |
| 3147 ctx->field_state = 0; | |
| 3148 | |
| 3149 state = sw_name_bytes; | |
| 3150 | |
| 3151 /* fall through */ | |
| 3152 | |
| 3153 case sw_name_bytes: | |
| 3154 | |
| 3155 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3156 "grpc name: len:%uz h:%d last:%uz, rest:%uz", | |
| 3157 ctx->field_length, | |
| 3158 ctx->field_huffman, | |
| 3159 last - p, | |
| 3160 ctx->rest - (p - b->pos)); | |
| 3161 | |
| 3162 size = ngx_min(last - p, (ssize_t) ctx->field_rest); | |
| 3163 ctx->field_rest -= size; | |
| 3164 | |
| 3165 if (ctx->field_huffman) { | |
| 3166 if (ngx_http_v2_huff_decode(&ctx->field_state, p, size, | |
| 3167 &ctx->field_end, | |
| 3168 ctx->field_rest == 0, | |
| 3169 r->connection->log) | |
| 3170 != NGX_OK) | |
| 3171 { | |
| 3172 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3173 "upstream sent invalid encoded header"); | |
| 3174 return NGX_ERROR; | |
| 3175 } | |
| 3176 | |
| 3177 ctx->name.len = ctx->field_end - ctx->name.data; | |
| 3178 ctx->name.data[ctx->name.len] = '\0'; | |
| 3179 | |
| 3180 } else { | |
|
7240
413189f03c8d
gRPC: fixed parsing response headers split on CONTINUATION frames.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7235
diff
changeset
|
3181 ctx->field_end = ngx_cpymem(ctx->field_end, p, size); |
| 7233 | 3182 ctx->name.data[ctx->name.len] = '\0'; |
| 3183 } | |
| 3184 | |
| 3185 p += size - 1; | |
| 3186 | |
| 3187 if (ctx->field_rest == 0) { | |
| 3188 state = sw_value_length; | |
| 3189 } | |
| 3190 | |
| 3191 break; | |
| 3192 | |
| 3193 case sw_value_length: | |
| 3194 ctx->field_huffman = ch & 0x80 ? 1 : 0; | |
| 3195 ctx->field_length = ch & ~0x80; | |
| 3196 | |
| 3197 if (ctx->field_length == 0x7f) { | |
| 3198 state = sw_value_length_2; | |
| 3199 break; | |
| 3200 } | |
| 3201 | |
| 3202 if (ctx->field_length == 0) { | |
| 3203 ngx_str_set(&ctx->value, ""); | |
| 3204 goto done; | |
| 3205 } | |
| 3206 | |
| 3207 state = sw_value; | |
| 3208 break; | |
| 3209 | |
| 3210 case sw_value_length_2: | |
| 3211 ctx->field_length += ch & ~0x80; | |
| 3212 | |
| 3213 if (ch & 0x80) { | |
| 3214 state = sw_value_length_3; | |
| 3215 break; | |
| 3216 } | |
| 3217 | |
| 3218 state = sw_value; | |
| 3219 break; | |
| 3220 | |
| 3221 case sw_value_length_3: | |
| 3222 ctx->field_length += (ch & ~0x80) << 7; | |
| 3223 | |
| 3224 if (ch & 0x80) { | |
| 3225 state = sw_value_length_4; | |
| 3226 break; | |
| 3227 } | |
| 3228 | |
| 3229 state = sw_value; | |
| 3230 break; | |
| 3231 | |
| 3232 case sw_value_length_4: | |
| 3233 ctx->field_length += (ch & ~0x80) << 14; | |
| 3234 | |
| 3235 if (ch & 0x80) { | |
| 3236 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3237 "upstream sent too large http2 " | |
| 3238 "header value length"); | |
| 3239 return NGX_ERROR; | |
| 3240 } | |
| 3241 | |
| 3242 state = sw_value; | |
| 3243 break; | |
| 3244 | |
| 3245 case sw_value: | |
| 3246 ctx->value.len = ctx->field_huffman ? | |
| 3247 ctx->field_length * 8 / 5 : ctx->field_length; | |
| 3248 | |
| 3249 ctx->value.data = ngx_pnalloc(r->pool, ctx->value.len + 1); | |
| 3250 if (ctx->value.data == NULL) { | |
| 3251 return NGX_ERROR; | |
| 3252 } | |
| 3253 | |
| 3254 ctx->field_end = ctx->value.data; | |
| 3255 ctx->field_rest = ctx->field_length; | |
| 3256 ctx->field_state = 0; | |
| 3257 | |
| 3258 state = sw_value_bytes; | |
| 3259 | |
| 3260 /* fall through */ | |
| 3261 | |
| 3262 case sw_value_bytes: | |
| 3263 | |
| 3264 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3265 "grpc value: len:%uz h:%d last:%uz, rest:%uz", | |
| 3266 ctx->field_length, | |
| 3267 ctx->field_huffman, | |
| 3268 last - p, | |
| 3269 ctx->rest - (p - b->pos)); | |
| 3270 | |
| 3271 size = ngx_min(last - p, (ssize_t) ctx->field_rest); | |
| 3272 ctx->field_rest -= size; | |
| 3273 | |
| 3274 if (ctx->field_huffman) { | |
| 3275 if (ngx_http_v2_huff_decode(&ctx->field_state, p, size, | |
| 3276 &ctx->field_end, | |
| 3277 ctx->field_rest == 0, | |
| 3278 r->connection->log) | |
| 3279 != NGX_OK) | |
| 3280 { | |
| 3281 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3282 "upstream sent invalid encoded header"); | |
| 3283 return NGX_ERROR; | |
| 3284 } | |
| 3285 | |
| 3286 ctx->value.len = ctx->field_end - ctx->value.data; | |
| 3287 ctx->value.data[ctx->value.len] = '\0'; | |
| 3288 | |
| 3289 } else { | |
|
7240
413189f03c8d
gRPC: fixed parsing response headers split on CONTINUATION frames.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7235
diff
changeset
|
3290 ctx->field_end = ngx_cpymem(ctx->field_end, p, size); |
| 7233 | 3291 ctx->value.data[ctx->value.len] = '\0'; |
| 3292 } | |
| 3293 | |
| 3294 p += size - 1; | |
| 3295 | |
| 3296 if (ctx->field_rest == 0) { | |
| 3297 goto done; | |
| 3298 } | |
| 3299 | |
| 3300 break; | |
| 3301 } | |
| 3302 | |
| 3303 continue; | |
| 3304 | |
| 3305 done: | |
| 3306 | |
| 3307 p++; | |
| 3308 ctx->rest -= p - b->pos; | |
| 3309 ctx->fragment_state = sw_start; | |
| 3310 b->pos = p; | |
| 3311 | |
| 3312 if (ctx->index) { | |
| 3313 ctx->name = *ngx_http_v2_get_static_name(ctx->index); | |
| 3314 } | |
| 3315 | |
| 3316 if (ctx->index && !ctx->literal) { | |
| 3317 ctx->value = *ngx_http_v2_get_static_value(ctx->index); | |
| 3318 } | |
| 3319 | |
| 3320 if (!ctx->index) { | |
| 3321 if (ngx_http_grpc_validate_header_name(r, &ctx->name) != NGX_OK) { | |
| 3322 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3323 "upstream sent invalid header: \"%V: %V\"", | |
| 3324 &ctx->name, &ctx->value); | |
| 3325 return NGX_ERROR; | |
| 3326 } | |
| 3327 } | |
| 3328 | |
| 3329 if (!ctx->index || ctx->literal) { | |
| 3330 if (ngx_http_grpc_validate_header_value(r, &ctx->value) != NGX_OK) { | |
| 3331 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3332 "upstream sent invalid header: \"%V: %V\"", | |
| 3333 &ctx->name, &ctx->value); | |
| 3334 return NGX_ERROR; | |
| 3335 } | |
| 3336 } | |
| 3337 | |
| 3338 return NGX_OK; | |
| 3339 } | |
| 3340 | |
| 3341 ctx->rest -= p - b->pos; | |
| 3342 ctx->fragment_state = state; | |
| 3343 b->pos = p; | |
| 3344 | |
| 3345 if (ctx->rest > ctx->padding) { | |
| 3346 return NGX_AGAIN; | |
| 3347 } | |
| 3348 | |
| 3349 return NGX_DONE; | |
| 3350 } | |
| 3351 | |
| 3352 | |
| 3353 static ngx_int_t | |
| 3354 ngx_http_grpc_validate_header_name(ngx_http_request_t *r, ngx_str_t *s) | |
| 3355 { | |
| 3356 u_char ch; | |
| 3357 ngx_uint_t i; | |
| 3358 | |
| 3359 for (i = 0; i < s->len; i++) { | |
| 3360 ch = s->data[i]; | |
| 3361 | |
| 3362 if (ch == ':' && i > 0) { | |
| 3363 return NGX_ERROR; | |
| 3364 } | |
| 3365 | |
| 3366 if (ch >= 'A' && ch <= 'Z') { | |
| 3367 return NGX_ERROR; | |
| 3368 } | |
| 3369 | |
| 3370 if (ch == '\0' || ch == CR || ch == LF) { | |
| 3371 return NGX_ERROR; | |
| 3372 } | |
| 3373 } | |
| 3374 | |
| 3375 return NGX_OK; | |
| 3376 } | |
| 3377 | |
| 3378 | |
| 3379 static ngx_int_t | |
| 3380 ngx_http_grpc_validate_header_value(ngx_http_request_t *r, ngx_str_t *s) | |
| 3381 { | |
| 3382 u_char ch; | |
| 3383 ngx_uint_t i; | |
| 3384 | |
| 3385 for (i = 0; i < s->len; i++) { | |
| 3386 ch = s->data[i]; | |
| 3387 | |
| 3388 if (ch == '\0' || ch == CR || ch == LF) { | |
| 3389 return NGX_ERROR; | |
| 3390 } | |
| 3391 } | |
| 3392 | |
| 3393 return NGX_OK; | |
| 3394 } | |
| 3395 | |
| 3396 | |
| 3397 static ngx_int_t | |
| 3398 ngx_http_grpc_parse_rst_stream(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 3399 ngx_buf_t *b) | |
| 3400 { | |
| 3401 u_char ch, *p, *last; | |
| 3402 enum { | |
| 3403 sw_start = 0, | |
| 3404 sw_error_2, | |
| 3405 sw_error_3, | |
| 3406 sw_error_4 | |
| 3407 } state; | |
| 3408 | |
| 3409 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3410 last = b->last; | |
| 3411 | |
| 3412 } else { | |
| 3413 last = b->pos + ctx->rest; | |
| 3414 } | |
| 3415 | |
| 3416 state = ctx->frame_state; | |
| 3417 | |
| 3418 if (state == sw_start) { | |
| 3419 if (ctx->rest != 4) { | |
| 3420 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3421 "upstream sent rst stream frame " | |
| 3422 "with invalid length: %uz", | |
| 3423 ctx->rest); | |
| 3424 return NGX_ERROR; | |
| 3425 } | |
| 3426 } | |
| 3427 | |
| 3428 for (p = b->pos; p < last; p++) { | |
| 3429 ch = *p; | |
| 3430 | |
| 3431 #if 0 | |
| 3432 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3433 "grpc rst byte: %02Xd s:%d", ch, state); | |
| 3434 #endif | |
| 3435 | |
| 3436 switch (state) { | |
| 3437 | |
| 3438 case sw_start: | |
|
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3439 ctx->error = (ngx_uint_t) ch << 24; |
| 7233 | 3440 state = sw_error_2; |
| 3441 break; | |
| 3442 | |
| 3443 case sw_error_2: | |
| 3444 ctx->error |= ch << 16; | |
| 3445 state = sw_error_3; | |
| 3446 break; | |
| 3447 | |
| 3448 case sw_error_3: | |
| 3449 ctx->error |= ch << 8; | |
| 3450 state = sw_error_4; | |
| 3451 break; | |
| 3452 | |
| 3453 case sw_error_4: | |
| 3454 ctx->error |= ch; | |
| 3455 state = sw_start; | |
| 3456 | |
| 3457 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3458 "grpc error: %ui", ctx->error); | |
| 3459 | |
| 3460 break; | |
| 3461 } | |
| 3462 } | |
| 3463 | |
| 3464 ctx->rest -= p - b->pos; | |
| 3465 ctx->frame_state = state; | |
| 3466 b->pos = p; | |
| 3467 | |
| 3468 if (ctx->rest > 0) { | |
| 3469 return NGX_AGAIN; | |
| 3470 } | |
| 3471 | |
| 3472 return NGX_OK; | |
| 3473 } | |
| 3474 | |
| 3475 | |
| 3476 static ngx_int_t | |
| 3477 ngx_http_grpc_parse_goaway(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 3478 ngx_buf_t *b) | |
| 3479 { | |
| 3480 u_char ch, *p, *last; | |
| 3481 enum { | |
| 3482 sw_start = 0, | |
| 3483 sw_last_stream_id_2, | |
| 3484 sw_last_stream_id_3, | |
| 3485 sw_last_stream_id_4, | |
| 3486 sw_error, | |
| 3487 sw_error_2, | |
| 3488 sw_error_3, | |
| 3489 sw_error_4, | |
| 3490 sw_debug | |
| 3491 } state; | |
| 3492 | |
| 3493 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3494 last = b->last; | |
| 3495 | |
| 3496 } else { | |
| 3497 last = b->pos + ctx->rest; | |
| 3498 } | |
| 3499 | |
| 3500 state = ctx->frame_state; | |
| 3501 | |
| 3502 if (state == sw_start) { | |
| 3503 | |
| 3504 if (ctx->stream_id) { | |
| 3505 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3506 "upstream sent goaway frame " | |
| 3507 "with non-zero stream id: %ui", | |
| 3508 ctx->stream_id); | |
| 3509 return NGX_ERROR; | |
| 3510 } | |
| 3511 | |
| 3512 if (ctx->rest < 8) { | |
| 3513 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3514 "upstream sent goaway frame " | |
| 3515 "with invalid length: %uz", | |
| 3516 ctx->rest); | |
| 3517 return NGX_ERROR; | |
| 3518 } | |
| 3519 } | |
| 3520 | |
| 3521 for (p = b->pos; p < last; p++) { | |
| 3522 ch = *p; | |
| 3523 | |
| 3524 #if 0 | |
| 3525 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3526 "grpc goaway byte: %02Xd s:%d", ch, state); | |
| 3527 #endif | |
| 3528 | |
| 3529 switch (state) { | |
| 3530 | |
| 3531 case sw_start: | |
| 3532 ctx->stream_id = (ch & 0x7f) << 24; | |
| 3533 state = sw_last_stream_id_2; | |
| 3534 break; | |
| 3535 | |
| 3536 case sw_last_stream_id_2: | |
| 3537 ctx->stream_id |= ch << 16; | |
| 3538 state = sw_last_stream_id_3; | |
| 3539 break; | |
| 3540 | |
| 3541 case sw_last_stream_id_3: | |
| 3542 ctx->stream_id |= ch << 8; | |
| 3543 state = sw_last_stream_id_4; | |
| 3544 break; | |
| 3545 | |
| 3546 case sw_last_stream_id_4: | |
| 3547 ctx->stream_id |= ch; | |
| 3548 state = sw_error; | |
| 3549 break; | |
| 3550 | |
| 3551 case sw_error: | |
|
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3552 ctx->error = (ngx_uint_t) ch << 24; |
| 7233 | 3553 state = sw_error_2; |
| 3554 break; | |
| 3555 | |
| 3556 case sw_error_2: | |
| 3557 ctx->error |= ch << 16; | |
| 3558 state = sw_error_3; | |
| 3559 break; | |
| 3560 | |
| 3561 case sw_error_3: | |
| 3562 ctx->error |= ch << 8; | |
| 3563 state = sw_error_4; | |
| 3564 break; | |
| 3565 | |
| 3566 case sw_error_4: | |
| 3567 ctx->error |= ch; | |
| 3568 state = sw_debug; | |
| 3569 break; | |
| 3570 | |
| 3571 case sw_debug: | |
| 3572 break; | |
| 3573 } | |
| 3574 } | |
| 3575 | |
| 3576 ctx->rest -= p - b->pos; | |
| 3577 ctx->frame_state = state; | |
| 3578 b->pos = p; | |
| 3579 | |
| 3580 if (ctx->rest > 0) { | |
| 3581 return NGX_AGAIN; | |
| 3582 } | |
| 3583 | |
| 3584 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3585 "grpc goaway: %ui, stream %ui", | |
| 3586 ctx->error, ctx->stream_id); | |
| 3587 | |
| 3588 ctx->state = ngx_http_grpc_st_start; | |
| 3589 | |
| 3590 return NGX_OK; | |
| 3591 } | |
| 3592 | |
| 3593 | |
| 3594 static ngx_int_t | |
| 3595 ngx_http_grpc_parse_window_update(ngx_http_request_t *r, | |
| 3596 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b) | |
| 3597 { | |
| 3598 u_char ch, *p, *last; | |
| 3599 enum { | |
| 3600 sw_start = 0, | |
| 3601 sw_size_2, | |
| 3602 sw_size_3, | |
| 3603 sw_size_4 | |
| 3604 } state; | |
| 3605 | |
| 3606 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3607 last = b->last; | |
| 3608 | |
| 3609 } else { | |
| 3610 last = b->pos + ctx->rest; | |
| 3611 } | |
| 3612 | |
| 3613 state = ctx->frame_state; | |
| 3614 | |
| 3615 if (state == sw_start) { | |
| 3616 if (ctx->rest != 4) { | |
| 3617 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3618 "upstream sent window update frame " | |
| 3619 "with invalid length: %uz", | |
| 3620 ctx->rest); | |
| 3621 return NGX_ERROR; | |
| 3622 } | |
| 3623 } | |
| 3624 | |
| 3625 for (p = b->pos; p < last; p++) { | |
| 3626 ch = *p; | |
| 3627 | |
| 3628 #if 0 | |
| 3629 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3630 "grpc window update byte: %02Xd s:%d", ch, state); | |
| 3631 #endif | |
| 3632 | |
| 3633 switch (state) { | |
| 3634 | |
| 3635 case sw_start: | |
| 3636 ctx->window_update = (ch & 0x7f) << 24; | |
| 3637 state = sw_size_2; | |
| 3638 break; | |
| 3639 | |
| 3640 case sw_size_2: | |
| 3641 ctx->window_update |= ch << 16; | |
| 3642 state = sw_size_3; | |
| 3643 break; | |
| 3644 | |
| 3645 case sw_size_3: | |
| 3646 ctx->window_update |= ch << 8; | |
| 3647 state = sw_size_4; | |
| 3648 break; | |
| 3649 | |
| 3650 case sw_size_4: | |
| 3651 ctx->window_update |= ch; | |
| 3652 state = sw_start; | |
| 3653 break; | |
| 3654 } | |
| 3655 } | |
| 3656 | |
| 3657 ctx->rest -= p - b->pos; | |
| 3658 ctx->frame_state = state; | |
| 3659 b->pos = p; | |
| 3660 | |
| 3661 if (ctx->rest > 0) { | |
| 3662 return NGX_AGAIN; | |
| 3663 } | |
| 3664 | |
| 3665 ctx->state = ngx_http_grpc_st_start; | |
| 3666 | |
| 3667 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3668 "grpc window update: %ui", ctx->window_update); | |
| 3669 | |
| 3670 if (ctx->stream_id) { | |
| 3671 | |
| 3672 if (ctx->window_update > (size_t) NGX_HTTP_V2_MAX_WINDOW | |
| 3673 - ctx->send_window) | |
| 3674 { | |
| 3675 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3676 "upstream sent too large window update"); | |
| 3677 return NGX_ERROR; | |
| 3678 } | |
| 3679 | |
| 3680 ctx->send_window += ctx->window_update; | |
| 3681 | |
| 3682 } else { | |
| 3683 | |
| 3684 if (ctx->window_update > NGX_HTTP_V2_MAX_WINDOW | |
| 3685 - ctx->connection->send_window) | |
| 3686 { | |
| 3687 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3688 "upstream sent too large window update"); | |
| 3689 return NGX_ERROR; | |
| 3690 } | |
| 3691 | |
| 3692 ctx->connection->send_window += ctx->window_update; | |
| 3693 } | |
| 3694 | |
| 3695 return NGX_OK; | |
| 3696 } | |
| 3697 | |
| 3698 | |
| 3699 static ngx_int_t | |
| 3700 ngx_http_grpc_parse_settings(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 3701 ngx_buf_t *b) | |
| 3702 { | |
| 3703 u_char ch, *p, *last; | |
| 3704 ssize_t window_update; | |
| 3705 enum { | |
| 3706 sw_start = 0, | |
| 3707 sw_id, | |
| 3708 sw_id_2, | |
| 3709 sw_value, | |
| 3710 sw_value_2, | |
| 3711 sw_value_3, | |
| 3712 sw_value_4 | |
| 3713 } state; | |
| 3714 | |
| 3715 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3716 last = b->last; | |
| 3717 | |
| 3718 } else { | |
| 3719 last = b->pos + ctx->rest; | |
| 3720 } | |
| 3721 | |
| 3722 state = ctx->frame_state; | |
| 3723 | |
| 3724 if (state == sw_start) { | |
| 3725 | |
| 3726 if (ctx->stream_id) { | |
| 3727 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3728 "upstream sent settings frame " | |
| 3729 "with non-zero stream id: %ui", | |
| 3730 ctx->stream_id); | |
| 3731 return NGX_ERROR; | |
| 3732 } | |
| 3733 | |
| 3734 if (ctx->flags & NGX_HTTP_V2_ACK_FLAG) { | |
| 3735 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3736 "grpc settings ack"); | |
| 3737 | |
| 3738 if (ctx->rest != 0) { | |
| 3739 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3740 "upstream sent settings frame " | |
| 3741 "with ack flag and non-zero length: %uz", | |
| 3742 ctx->rest); | |
| 3743 return NGX_ERROR; | |
| 3744 } | |
| 3745 | |
| 3746 ctx->state = ngx_http_grpc_st_start; | |
| 3747 | |
| 3748 return NGX_OK; | |
| 3749 } | |
| 3750 | |
| 3751 if (ctx->rest % 6 != 0) { | |
| 3752 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3753 "upstream sent settings frame " | |
| 3754 "with invalid length: %uz", | |
| 3755 ctx->rest); | |
| 3756 return NGX_ERROR; | |
| 3757 } | |
|
7379
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diff
changeset
|
3758 |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3759 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
|
3760 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
|
57463f4e2fcd
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Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3761 "upstream sent too many settings frames"); |
|
57463f4e2fcd
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Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3762 return NGX_ERROR; |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3763 } |
| 7233 | 3764 } |
| 3765 | |
| 3766 for (p = b->pos; p < last; p++) { | |
| 3767 ch = *p; | |
| 3768 | |
| 3769 #if 0 | |
| 3770 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3771 "grpc settings byte: %02Xd s:%d", ch, state); | |
| 3772 #endif | |
| 3773 | |
| 3774 switch (state) { | |
| 3775 | |
| 3776 case sw_start: | |
| 3777 case sw_id: | |
| 3778 ctx->setting_id = ch << 8; | |
| 3779 state = sw_id_2; | |
| 3780 break; | |
| 3781 | |
| 3782 case sw_id_2: | |
| 3783 ctx->setting_id |= ch; | |
| 3784 state = sw_value; | |
| 3785 break; | |
| 3786 | |
| 3787 case sw_value: | |
|
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3788 ctx->setting_value = (ngx_uint_t) ch << 24; |
| 7233 | 3789 state = sw_value_2; |
| 3790 break; | |
| 3791 | |
| 3792 case sw_value_2: | |
| 3793 ctx->setting_value |= ch << 16; | |
| 3794 state = sw_value_3; | |
| 3795 break; | |
| 3796 | |
| 3797 case sw_value_3: | |
| 3798 ctx->setting_value |= ch << 8; | |
| 3799 state = sw_value_4; | |
| 3800 break; | |
| 3801 | |
| 3802 case sw_value_4: | |
| 3803 ctx->setting_value |= ch; | |
| 3804 state = sw_id; | |
| 3805 | |
| 3806 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3807 "grpc setting: %ui %ui", | |
| 3808 ctx->setting_id, ctx->setting_value); | |
| 3809 | |
| 3810 /* | |
| 3811 * The following settings are defined by the protocol: | |
| 3812 * | |
| 3813 * SETTINGS_HEADER_TABLE_SIZE, SETTINGS_ENABLE_PUSH, | |
| 3814 * SETTINGS_MAX_CONCURRENT_STREAMS, SETTINGS_INITIAL_WINDOW_SIZE, | |
| 3815 * SETTINGS_MAX_FRAME_SIZE, SETTINGS_MAX_HEADER_LIST_SIZE | |
| 3816 * | |
| 3817 * Only SETTINGS_INITIAL_WINDOW_SIZE seems to be needed in | |
| 3818 * a simple client. | |
| 3819 */ | |
| 3820 | |
| 3821 if (ctx->setting_id == 0x04) { | |
| 3822 /* SETTINGS_INITIAL_WINDOW_SIZE */ | |
| 3823 | |
| 3824 if (ctx->setting_value > NGX_HTTP_V2_MAX_WINDOW) { | |
| 3825 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3826 "upstream sent settings frame " | |
| 3827 "with too large initial window size: %ui", | |
| 3828 ctx->setting_value); | |
| 3829 return NGX_ERROR; | |
| 3830 } | |
| 3831 | |
| 3832 window_update = ctx->setting_value | |
| 3833 - ctx->connection->init_window; | |
| 3834 ctx->connection->init_window = ctx->setting_value; | |
| 3835 | |
| 3836 if (ctx->send_window > 0 | |
| 3837 && window_update > (ssize_t) NGX_HTTP_V2_MAX_WINDOW | |
| 3838 - ctx->send_window) | |
| 3839 { | |
| 3840 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3841 "upstream sent settings frame " | |
| 3842 "with too large initial window size: %ui", | |
| 3843 ctx->setting_value); | |
| 3844 return NGX_ERROR; | |
| 3845 } | |
| 3846 | |
| 3847 ctx->send_window += window_update; | |
| 3848 } | |
| 3849 | |
| 3850 break; | |
| 3851 } | |
| 3852 } | |
| 3853 | |
| 3854 ctx->rest -= p - b->pos; | |
| 3855 ctx->frame_state = state; | |
| 3856 b->pos = p; | |
| 3857 | |
| 3858 if (ctx->rest > 0) { | |
| 3859 return NGX_AGAIN; | |
| 3860 } | |
| 3861 | |
| 3862 ctx->state = ngx_http_grpc_st_start; | |
| 3863 | |
| 3864 return ngx_http_grpc_send_settings_ack(r, ctx); | |
| 3865 } | |
| 3866 | |
| 3867 | |
| 3868 static ngx_int_t | |
| 3869 ngx_http_grpc_parse_ping(ngx_http_request_t *r, | |
| 3870 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b) | |
| 3871 { | |
| 3872 u_char ch, *p, *last; | |
| 3873 enum { | |
| 3874 sw_start = 0, | |
| 3875 sw_data_2, | |
| 3876 sw_data_3, | |
| 3877 sw_data_4, | |
| 3878 sw_data_5, | |
| 3879 sw_data_6, | |
| 3880 sw_data_7, | |
| 3881 sw_data_8 | |
| 3882 } state; | |
| 3883 | |
| 3884 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3885 last = b->last; | |
| 3886 | |
| 3887 } else { | |
| 3888 last = b->pos + ctx->rest; | |
| 3889 } | |
| 3890 | |
| 3891 state = ctx->frame_state; | |
| 3892 | |
| 3893 if (state == sw_start) { | |
| 3894 | |
| 3895 if (ctx->stream_id) { | |
| 3896 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3897 "upstream sent ping frame " | |
| 3898 "with non-zero stream id: %ui", | |
| 3899 ctx->stream_id); | |
| 3900 return NGX_ERROR; | |
| 3901 } | |
| 3902 | |
| 3903 if (ctx->rest != 8) { | |
| 3904 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3905 "upstream sent ping frame " | |
| 3906 "with invalid length: %uz", | |
| 3907 ctx->rest); | |
| 3908 return NGX_ERROR; | |
| 3909 } | |
| 3910 | |
| 3911 if (ctx->flags & NGX_HTTP_V2_ACK_FLAG) { | |
| 3912 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3913 "upstream sent ping frame with ack flag"); | |
| 3914 return NGX_ERROR; | |
| 3915 } | |
|
7379
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3916 |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3917 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
|
3918 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
|
3919 "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
|
3920 return NGX_ERROR; |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3921 } |
| 7233 | 3922 } |
| 3923 | |
| 3924 for (p = b->pos; p < last; p++) { | |
| 3925 ch = *p; | |
| 3926 | |
| 3927 #if 0 | |
| 3928 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3929 "grpc ping byte: %02Xd s:%d", ch, state); | |
| 3930 #endif | |
| 3931 | |
| 3932 if (state < sw_data_8) { | |
| 3933 ctx->ping_data[state] = ch; | |
| 3934 state++; | |
| 3935 | |
| 3936 } else { | |
| 3937 ctx->ping_data[7] = ch; | |
| 3938 state = sw_start; | |
| 3939 | |
| 3940 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3941 "grpc ping"); | |
| 3942 } | |
| 3943 } | |
| 3944 | |
| 3945 ctx->rest -= p - b->pos; | |
| 3946 ctx->frame_state = state; | |
| 3947 b->pos = p; | |
| 3948 | |
| 3949 if (ctx->rest > 0) { | |
| 3950 return NGX_AGAIN; | |
| 3951 } | |
| 3952 | |
| 3953 ctx->state = ngx_http_grpc_st_start; | |
| 3954 | |
| 3955 return ngx_http_grpc_send_ping_ack(r, ctx); | |
| 3956 } | |
| 3957 | |
| 3958 | |
| 3959 static ngx_int_t | |
| 3960 ngx_http_grpc_send_settings_ack(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
| 3961 { | |
| 3962 ngx_chain_t *cl, **ll; | |
| 3963 ngx_http_grpc_frame_t *f; | |
| 3964 | |
| 3965 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3966 "grpc send settings ack"); | |
| 3967 | |
| 3968 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
| 3969 ll = &cl->next; | |
| 3970 } | |
| 3971 | |
| 3972 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 3973 if (cl == NULL) { | |
| 3974 return NGX_ERROR; | |
| 3975 } | |
| 3976 | |
| 3977 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 3978 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 3979 | |
| 3980 f->length_0 = 0; | |
| 3981 f->length_1 = 0; | |
| 3982 f->length_2 = 0; | |
| 3983 f->type = NGX_HTTP_V2_SETTINGS_FRAME; | |
| 3984 f->flags = NGX_HTTP_V2_ACK_FLAG; | |
| 3985 f->stream_id_0 = 0; | |
| 3986 f->stream_id_1 = 0; | |
| 3987 f->stream_id_2 = 0; | |
| 3988 f->stream_id_3 = 0; | |
| 3989 | |
| 3990 *ll = cl; | |
| 3991 | |
| 3992 return NGX_OK; | |
| 3993 } | |
| 3994 | |
| 3995 | |
| 3996 static ngx_int_t | |
| 3997 ngx_http_grpc_send_ping_ack(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
| 3998 { | |
| 3999 ngx_chain_t *cl, **ll; | |
| 4000 ngx_http_grpc_frame_t *f; | |
| 4001 | |
| 4002 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 4003 "grpc send ping ack"); | |
| 4004 | |
| 4005 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
| 4006 ll = &cl->next; | |
| 4007 } | |
| 4008 | |
| 4009 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 4010 if (cl == NULL) { | |
| 4011 return NGX_ERROR; | |
| 4012 } | |
| 4013 | |
| 4014 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 4015 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 4016 | |
| 4017 f->length_0 = 0; | |
| 4018 f->length_1 = 0; | |
| 4019 f->length_2 = 8; | |
| 4020 f->type = NGX_HTTP_V2_PING_FRAME; | |
| 4021 f->flags = NGX_HTTP_V2_ACK_FLAG; | |
| 4022 f->stream_id_0 = 0; | |
| 4023 f->stream_id_1 = 0; | |
| 4024 f->stream_id_2 = 0; | |
| 4025 f->stream_id_3 = 0; | |
| 4026 | |
| 4027 cl->buf->last = ngx_copy(cl->buf->last, ctx->ping_data, 8); | |
| 4028 | |
| 4029 *ll = cl; | |
| 4030 | |
| 4031 return NGX_OK; | |
| 4032 } | |
| 4033 | |
| 4034 | |
| 4035 static ngx_int_t | |
| 4036 ngx_http_grpc_send_window_update(ngx_http_request_t *r, | |
| 4037 ngx_http_grpc_ctx_t *ctx) | |
| 4038 { | |
| 4039 size_t n; | |
| 4040 ngx_chain_t *cl, **ll; | |
| 4041 ngx_http_grpc_frame_t *f; | |
| 4042 | |
| 4043 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 4044 "grpc send window update: %uz %uz", | |
| 4045 ctx->connection->recv_window, ctx->recv_window); | |
| 4046 | |
| 4047 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
| 4048 ll = &cl->next; | |
| 4049 } | |
| 4050 | |
| 4051 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 4052 if (cl == NULL) { | |
| 4053 return NGX_ERROR; | |
| 4054 } | |
| 4055 | |
| 4056 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 4057 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 4058 | |
| 4059 f->length_0 = 0; | |
| 4060 f->length_1 = 0; | |
| 4061 f->length_2 = 4; | |
| 4062 f->type = NGX_HTTP_V2_WINDOW_UPDATE_FRAME; | |
| 4063 f->flags = 0; | |
| 4064 f->stream_id_0 = 0; | |
| 4065 f->stream_id_1 = 0; | |
| 4066 f->stream_id_2 = 0; | |
| 4067 f->stream_id_3 = 0; | |
| 4068 | |
| 4069 n = NGX_HTTP_V2_MAX_WINDOW - ctx->connection->recv_window; | |
| 4070 ctx->connection->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4071 | |
| 4072 *cl->buf->last++ = (u_char) ((n >> 24) & 0xff); | |
| 4073 *cl->buf->last++ = (u_char) ((n >> 16) & 0xff); | |
| 4074 *cl->buf->last++ = (u_char) ((n >> 8) & 0xff); | |
| 4075 *cl->buf->last++ = (u_char) (n & 0xff); | |
| 4076 | |
| 4077 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 4078 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 4079 | |
| 4080 f->length_0 = 0; | |
| 4081 f->length_1 = 0; | |
| 4082 f->length_2 = 4; | |
| 4083 f->type = NGX_HTTP_V2_WINDOW_UPDATE_FRAME; | |
| 4084 f->flags = 0; | |
| 4085 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 4086 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 4087 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 4088 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 4089 | |
| 4090 n = NGX_HTTP_V2_MAX_WINDOW - ctx->recv_window; | |
| 4091 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4092 | |
| 4093 *cl->buf->last++ = (u_char) ((n >> 24) & 0xff); | |
| 4094 *cl->buf->last++ = (u_char) ((n >> 16) & 0xff); | |
| 4095 *cl->buf->last++ = (u_char) ((n >> 8) & 0xff); | |
| 4096 *cl->buf->last++ = (u_char) (n & 0xff); | |
| 4097 | |
| 4098 *ll = cl; | |
| 4099 | |
| 4100 return NGX_OK; | |
| 4101 } | |
| 4102 | |
| 4103 | |
| 4104 static ngx_chain_t * | |
| 4105 ngx_http_grpc_get_buf(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
| 4106 { | |
|
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4107 u_char *start; |
| 7233 | 4108 ngx_buf_t *b; |
| 4109 ngx_chain_t *cl; | |
| 4110 | |
| 4111 cl = ngx_chain_get_free_buf(r->pool, &ctx->free); | |
| 4112 if (cl == NULL) { | |
| 4113 return NULL; | |
| 4114 } | |
| 4115 | |
| 4116 b = cl->buf; | |
|
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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parents:
7271
diff
changeset
|
4117 start = b->start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4118 |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4119 if (start == NULL) { |
| 7233 | 4120 |
| 4121 /* | |
| 4122 * each buffer is large enough to hold two window update | |
| 4123 * frames in a row | |
| 4124 */ | |
| 4125 | |
|
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4126 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
|
4127 if (start == NULL) { |
| 7233 | 4128 return NULL; |
| 4129 } | |
| 4130 | |
| 4131 } | |
| 4132 | |
|
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4133 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
|
4134 |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4135 b->start = start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4136 b->pos = start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4137 b->last = start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4138 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
|
4139 |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4140 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
|
4141 b->temporary = 1; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4142 b->flush = 1; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4143 |
| 7233 | 4144 return cl; |
| 4145 } | |
| 4146 | |
| 4147 | |
| 4148 static ngx_http_grpc_ctx_t * | |
| 4149 ngx_http_grpc_get_ctx(ngx_http_request_t *r) | |
| 4150 { | |
| 4151 ngx_http_grpc_ctx_t *ctx; | |
| 4152 ngx_http_upstream_t *u; | |
| 4153 | |
| 4154 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); | |
| 4155 | |
| 4156 if (ctx->connection == NULL) { | |
| 4157 u = r->upstream; | |
| 4158 | |
| 4159 if (ngx_http_grpc_get_connection_data(r, ctx, &u->peer) != NGX_OK) { | |
| 4160 return NULL; | |
| 4161 } | |
| 4162 } | |
| 4163 | |
| 4164 return ctx; | |
| 4165 } | |
| 4166 | |
| 4167 | |
| 4168 static ngx_int_t | |
| 4169 ngx_http_grpc_get_connection_data(ngx_http_request_t *r, | |
| 4170 ngx_http_grpc_ctx_t *ctx, ngx_peer_connection_t *pc) | |
| 4171 { | |
| 4172 ngx_connection_t *c; | |
| 4173 ngx_pool_cleanup_t *cln; | |
| 4174 | |
| 4175 c = pc->connection; | |
| 4176 | |
| 4177 if (pc->cached) { | |
| 4178 | |
| 4179 /* | |
| 4180 * for cached connections, connection data can be found | |
| 4181 * in the cleanup handler | |
| 4182 */ | |
| 4183 | |
| 4184 for (cln = c->pool->cleanup; cln; cln = cln->next) { | |
| 4185 if (cln->handler == ngx_http_grpc_cleanup) { | |
| 4186 ctx->connection = cln->data; | |
| 4187 break; | |
| 4188 } | |
| 4189 } | |
| 4190 | |
| 4191 if (ctx->connection == NULL) { | |
| 4192 ngx_log_error(NGX_LOG_ERR, c->log, 0, | |
| 4193 "no connection data found for " | |
| 4194 "keepalive http2 connection"); | |
| 4195 return NGX_ERROR; | |
| 4196 } | |
| 4197 | |
| 4198 ctx->send_window = ctx->connection->init_window; | |
| 4199 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4200 | |
| 4201 ctx->connection->last_stream_id += 2; | |
| 4202 ctx->id = ctx->connection->last_stream_id; | |
| 4203 | |
| 4204 return NGX_OK; | |
| 4205 } | |
| 4206 | |
| 4207 cln = ngx_pool_cleanup_add(c->pool, sizeof(ngx_http_grpc_conn_t)); | |
| 4208 if (cln == NULL) { | |
| 4209 return NGX_ERROR; | |
| 4210 } | |
| 4211 | |
| 4212 cln->handler = ngx_http_grpc_cleanup; | |
| 4213 ctx->connection = cln->data; | |
| 4214 | |
| 4215 ctx->connection->init_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
| 4216 ctx->connection->send_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
| 4217 ctx->connection->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4218 | |
| 4219 ctx->send_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
| 4220 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4221 | |
| 4222 ctx->id = 1; | |
| 4223 ctx->connection->last_stream_id = 1; | |
| 4224 | |
| 4225 return NGX_OK; | |
| 4226 } | |
| 4227 | |
| 4228 | |
| 4229 static void | |
| 4230 ngx_http_grpc_cleanup(void *data) | |
| 4231 { | |
| 4232 #if 0 | |
| 4233 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 4234 "grpc cleanup"); | |
| 4235 #endif | |
| 4236 return; | |
| 4237 } | |
| 4238 | |
| 4239 | |
| 4240 static void | |
| 4241 ngx_http_grpc_abort_request(ngx_http_request_t *r) | |
| 4242 { | |
| 4243 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 4244 "abort grpc request"); | |
| 4245 return; | |
| 4246 } | |
| 4247 | |
| 4248 | |
| 4249 static void | |
| 4250 ngx_http_grpc_finalize_request(ngx_http_request_t *r, ngx_int_t rc) | |
| 4251 { | |
| 4252 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 4253 "finalize grpc request"); | |
| 4254 return; | |
| 4255 } | |
| 4256 | |
| 4257 | |
|
7234
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4258 static ngx_int_t |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4259 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
|
4260 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
|
4261 { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4262 ngx_table_elt_t *te; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4263 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4264 te = r->headers_in.te; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4265 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4266 if (te == NULL) { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4267 v->not_found = 1; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4268 return NGX_OK; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4269 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4270 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4271 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
|
4272 (u_char *) "trailers", 8 - 1) |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4273 == NULL) |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4274 { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4275 v->not_found = 1; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4276 return NGX_OK; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4277 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4278 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4279 v->valid = 1; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4280 v->no_cacheable = 0; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4281 v->not_found = 0; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4282 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4283 v->data = (u_char *) "trailers"; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4284 v->len = sizeof("trailers") - 1; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4285 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4286 return NGX_OK; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4287 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4288 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4289 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4290 static ngx_int_t |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4291 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
|
4292 { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4293 ngx_http_variable_t *var, *v; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4294 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4295 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
|
4296 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
|
4297 if (var == NULL) { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4298 return NGX_ERROR; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4299 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4300 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4301 var->get_handler = v->get_handler; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4302 var->data = v->data; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4303 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4304 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4305 return NGX_OK; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4306 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4307 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4308 |
| 7233 | 4309 static void * |
| 4310 ngx_http_grpc_create_loc_conf(ngx_conf_t *cf) | |
| 4311 { | |
| 4312 ngx_http_grpc_loc_conf_t *conf; | |
| 4313 | |
| 4314 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_grpc_loc_conf_t)); | |
| 4315 if (conf == NULL) { | |
| 4316 return NULL; | |
| 4317 } | |
| 4318 | |
| 4319 /* | |
| 4320 * set by ngx_pcalloc(): | |
| 4321 * | |
| 4322 * conf->upstream.ignore_headers = 0; | |
| 4323 * conf->upstream.next_upstream = 0; | |
| 4324 * conf->upstream.hide_headers_hash = { NULL, 0 }; | |
| 4325 * conf->upstream.ssl_name = NULL; | |
| 4326 * | |
| 4327 * conf->headers.lengths = NULL; | |
| 4328 * conf->headers.values = NULL; | |
| 4329 * conf->headers.hash = { NULL, 0 }; | |
| 4330 * conf->host = { 0, NULL }; | |
| 4331 * conf->host_set = 0; | |
| 4332 * conf->ssl = 0; | |
| 4333 * conf->ssl_protocols = 0; | |
| 4334 * conf->ssl_ciphers = { 0, NULL }; | |
| 4335 * conf->ssl_trusted_certificate = { 0, NULL }; | |
| 4336 * conf->ssl_crl = { 0, NULL }; | |
| 4337 * conf->ssl_certificate = { 0, NULL }; | |
| 4338 * conf->ssl_certificate_key = { 0, NULL }; | |
| 4339 */ | |
| 4340 | |
| 4341 conf->upstream.local = NGX_CONF_UNSET_PTR; | |
|
7371
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4342 conf->upstream.socket_keepalive = NGX_CONF_UNSET; |
| 7233 | 4343 conf->upstream.next_upstream_tries = NGX_CONF_UNSET_UINT; |
| 4344 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC; | |
| 4345 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC; | |
| 4346 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC; | |
| 4347 conf->upstream.next_upstream_timeout = NGX_CONF_UNSET_MSEC; | |
| 4348 | |
| 4349 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE; | |
| 4350 | |
| 4351 conf->upstream.hide_headers = NGX_CONF_UNSET_PTR; | |
| 4352 conf->upstream.pass_headers = NGX_CONF_UNSET_PTR; | |
| 4353 | |
| 4354 conf->upstream.intercept_errors = NGX_CONF_UNSET; | |
| 4355 | |
| 4356 #if (NGX_HTTP_SSL) | |
| 4357 conf->upstream.ssl_session_reuse = NGX_CONF_UNSET; | |
| 4358 conf->upstream.ssl_server_name = NGX_CONF_UNSET; | |
| 4359 conf->upstream.ssl_verify = NGX_CONF_UNSET; | |
| 4360 conf->ssl_verify_depth = NGX_CONF_UNSET_UINT; | |
| 4361 conf->ssl_passwords = NGX_CONF_UNSET_PTR; | |
| 4362 #endif | |
| 4363 | |
| 4364 /* the hardcoded values */ | |
| 4365 conf->upstream.cyclic_temp_file = 0; | |
| 4366 conf->upstream.buffering = 0; | |
| 4367 conf->upstream.ignore_client_abort = 0; | |
| 4368 conf->upstream.send_lowat = 0; | |
| 4369 conf->upstream.bufs.num = 0; | |
| 4370 conf->upstream.busy_buffers_size = 0; | |
| 4371 conf->upstream.max_temp_file_size = 0; | |
| 4372 conf->upstream.temp_file_write_size = 0; | |
| 4373 conf->upstream.pass_request_headers = 1; | |
| 4374 conf->upstream.pass_request_body = 1; | |
| 4375 conf->upstream.force_ranges = 0; | |
| 4376 conf->upstream.pass_trailers = 1; | |
| 4377 conf->upstream.preserve_output = 1; | |
| 4378 | |
|
7728
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7680
diff
changeset
|
4379 conf->headers_source = NGX_CONF_UNSET_PTR; |
|
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7680
diff
changeset
|
4380 |
| 7233 | 4381 ngx_str_set(&conf->upstream.module, "grpc"); |
| 4382 | |
| 4383 return conf; | |
| 4384 } | |
| 4385 | |
| 4386 | |
| 4387 static char * | |
| 4388 ngx_http_grpc_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 4389 { | |
| 4390 ngx_http_grpc_loc_conf_t *prev = parent; | |
| 4391 ngx_http_grpc_loc_conf_t *conf = child; | |
| 4392 | |
| 4393 ngx_int_t rc; | |
| 4394 ngx_hash_init_t hash; | |
| 4395 ngx_http_core_loc_conf_t *clcf; | |
| 4396 | |
| 4397 ngx_conf_merge_ptr_value(conf->upstream.local, | |
| 4398 prev->upstream.local, NULL); | |
| 4399 | |
|
7371
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4400 ngx_conf_merge_value(conf->upstream.socket_keepalive, |
|
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4401 prev->upstream.socket_keepalive, 0); |
|
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4402 |
| 7233 | 4403 ngx_conf_merge_uint_value(conf->upstream.next_upstream_tries, |
| 4404 prev->upstream.next_upstream_tries, 0); | |
| 4405 | |
| 4406 ngx_conf_merge_msec_value(conf->upstream.connect_timeout, | |
| 4407 prev->upstream.connect_timeout, 60000); | |
| 4408 | |
| 4409 ngx_conf_merge_msec_value(conf->upstream.send_timeout, | |
| 4410 prev->upstream.send_timeout, 60000); | |
| 4411 | |
| 4412 ngx_conf_merge_msec_value(conf->upstream.read_timeout, | |
| 4413 prev->upstream.read_timeout, 60000); | |
| 4414 | |
| 4415 ngx_conf_merge_msec_value(conf->upstream.next_upstream_timeout, | |
| 4416 prev->upstream.next_upstream_timeout, 0); | |
| 4417 | |
| 4418 ngx_conf_merge_size_value(conf->upstream.buffer_size, | |
| 4419 prev->upstream.buffer_size, | |
| 4420 (size_t) ngx_pagesize); | |
| 4421 | |
| 4422 ngx_conf_merge_bitmask_value(conf->upstream.ignore_headers, | |
| 4423 prev->upstream.ignore_headers, | |
| 4424 NGX_CONF_BITMASK_SET); | |
| 4425 | |
| 4426 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream, | |
| 4427 prev->upstream.next_upstream, | |
| 4428 (NGX_CONF_BITMASK_SET | |
| 4429 |NGX_HTTP_UPSTREAM_FT_ERROR | |
| 4430 |NGX_HTTP_UPSTREAM_FT_TIMEOUT)); | |
| 4431 | |
| 4432 if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) { | |
| 4433 conf->upstream.next_upstream = NGX_CONF_BITMASK_SET | |
| 4434 |NGX_HTTP_UPSTREAM_FT_OFF; | |
| 4435 } | |
| 4436 | |
| 4437 ngx_conf_merge_value(conf->upstream.intercept_errors, | |
| 4438 prev->upstream.intercept_errors, 0); | |
| 4439 | |
| 4440 #if (NGX_HTTP_SSL) | |
| 4441 | |
| 4442 ngx_conf_merge_value(conf->upstream.ssl_session_reuse, | |
| 4443 prev->upstream.ssl_session_reuse, 1); | |
| 4444 | |
| 4445 ngx_conf_merge_bitmask_value(conf->ssl_protocols, prev->ssl_protocols, | |
| 4446 (NGX_CONF_BITMASK_SET|NGX_SSL_TLSv1 | |
| 4447 |NGX_SSL_TLSv1_1|NGX_SSL_TLSv1_2)); | |
| 4448 | |
| 4449 ngx_conf_merge_str_value(conf->ssl_ciphers, prev->ssl_ciphers, | |
| 4450 "DEFAULT"); | |
| 4451 | |
| 4452 if (conf->upstream.ssl_name == NULL) { | |
| 4453 conf->upstream.ssl_name = prev->upstream.ssl_name; | |
| 4454 } | |
| 4455 | |
| 4456 ngx_conf_merge_value(conf->upstream.ssl_server_name, | |
| 4457 prev->upstream.ssl_server_name, 0); | |
| 4458 ngx_conf_merge_value(conf->upstream.ssl_verify, | |
| 4459 prev->upstream.ssl_verify, 0); | |
| 4460 ngx_conf_merge_uint_value(conf->ssl_verify_depth, | |
| 4461 prev->ssl_verify_depth, 1); | |
| 4462 ngx_conf_merge_str_value(conf->ssl_trusted_certificate, | |
| 4463 prev->ssl_trusted_certificate, ""); | |
| 4464 ngx_conf_merge_str_value(conf->ssl_crl, prev->ssl_crl, ""); | |
| 4465 | |
| 4466 ngx_conf_merge_str_value(conf->ssl_certificate, | |
| 4467 prev->ssl_certificate, ""); | |
| 4468 ngx_conf_merge_str_value(conf->ssl_certificate_key, | |
| 4469 prev->ssl_certificate_key, ""); | |
| 4470 ngx_conf_merge_ptr_value(conf->ssl_passwords, prev->ssl_passwords, NULL); | |
| 4471 | |
| 4472 if (conf->ssl && ngx_http_grpc_set_ssl(cf, conf) != NGX_OK) { | |
| 4473 return NGX_CONF_ERROR; | |
| 4474 } | |
| 4475 | |
| 4476 #endif | |
| 4477 | |
| 4478 hash.max_size = 512; | |
| 4479 hash.bucket_size = ngx_align(64, ngx_cacheline_size); | |
| 4480 hash.name = "grpc_headers_hash"; | |
| 4481 | |
| 4482 if (ngx_http_upstream_hide_headers_hash(cf, &conf->upstream, | |
| 4483 &prev->upstream, ngx_http_grpc_hide_headers, &hash) | |
| 4484 != NGX_OK) | |
| 4485 { | |
| 4486 return NGX_CONF_ERROR; | |
| 4487 } | |
| 4488 | |
| 4489 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
| 4490 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4491 if (clcf->noname |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4492 && 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
|
4493 { |
| 7233 | 4494 conf->upstream.upstream = prev->upstream.upstream; |
| 4495 conf->host = prev->host; | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4496 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4497 conf->grpc_lengths = prev->grpc_lengths; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4498 conf->grpc_values = prev->grpc_values; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4499 |
| 7233 | 4500 #if (NGX_HTTP_SSL) |
| 4501 conf->upstream.ssl = prev->upstream.ssl; | |
| 4502 #endif | |
| 4503 } | |
| 4504 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4505 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
|
4506 && (conf->upstream.upstream || conf->grpc_lengths)) |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4507 { |
| 7233 | 4508 clcf->handler = ngx_http_grpc_handler; |
| 4509 } | |
| 4510 | |
|
7728
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7680
diff
changeset
|
4511 ngx_conf_merge_ptr_value(conf->headers_source, prev->headers_source, NULL); |
|
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7680
diff
changeset
|
4512 |
|
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7680
diff
changeset
|
4513 if (conf->headers_source == prev->headers_source) { |
| 7233 | 4514 conf->headers = prev->headers; |
| 4515 conf->host_set = prev->host_set; | |
| 4516 } | |
| 4517 | |
| 4518 rc = ngx_http_grpc_init_headers(cf, conf, &conf->headers, | |
| 4519 ngx_http_grpc_headers); | |
| 4520 if (rc != NGX_OK) { | |
| 4521 return NGX_CONF_ERROR; | |
| 4522 } | |
| 4523 | |
| 4524 /* | |
| 4525 * special handling to preserve conf->headers in the "http" section | |
| 4526 * to inherit it to all servers | |
| 4527 */ | |
| 4528 | |
| 4529 if (prev->headers.hash.buckets == NULL | |
| 4530 && conf->headers_source == prev->headers_source) | |
| 4531 { | |
| 4532 prev->headers = conf->headers; | |
| 4533 prev->host_set = conf->host_set; | |
| 4534 } | |
| 4535 | |
| 4536 return NGX_CONF_OK; | |
| 4537 } | |
| 4538 | |
| 4539 | |
| 4540 static ngx_int_t | |
| 4541 ngx_http_grpc_init_headers(ngx_conf_t *cf, ngx_http_grpc_loc_conf_t *conf, | |
| 4542 ngx_http_grpc_headers_t *headers, ngx_keyval_t *default_headers) | |
| 4543 { | |
| 4544 u_char *p; | |
| 4545 size_t size; | |
| 4546 uintptr_t *code; | |
| 4547 ngx_uint_t i; | |
| 4548 ngx_array_t headers_names, headers_merged; | |
| 4549 ngx_keyval_t *src, *s, *h; | |
| 4550 ngx_hash_key_t *hk; | |
| 4551 ngx_hash_init_t hash; | |
| 4552 ngx_http_script_compile_t sc; | |
| 4553 ngx_http_script_copy_code_t *copy; | |
| 4554 | |
| 4555 if (headers->hash.buckets) { | |
| 4556 return NGX_OK; | |
| 4557 } | |
| 4558 | |
| 4559 if (ngx_array_init(&headers_names, cf->temp_pool, 4, sizeof(ngx_hash_key_t)) | |
| 4560 != NGX_OK) | |
| 4561 { | |
| 4562 return NGX_ERROR; | |
| 4563 } | |
| 4564 | |
| 4565 if (ngx_array_init(&headers_merged, cf->temp_pool, 4, sizeof(ngx_keyval_t)) | |
| 4566 != NGX_OK) | |
| 4567 { | |
| 4568 return NGX_ERROR; | |
| 4569 } | |
| 4570 | |
| 4571 headers->lengths = ngx_array_create(cf->pool, 64, 1); | |
| 4572 if (headers->lengths == NULL) { | |
| 4573 return NGX_ERROR; | |
| 4574 } | |
| 4575 | |
| 4576 headers->values = ngx_array_create(cf->pool, 512, 1); | |
| 4577 if (headers->values == NULL) { | |
| 4578 return NGX_ERROR; | |
| 4579 } | |
| 4580 | |
| 4581 if (conf->headers_source) { | |
| 4582 | |
| 4583 src = conf->headers_source->elts; | |
| 4584 for (i = 0; i < conf->headers_source->nelts; i++) { | |
| 4585 | |
| 4586 if (src[i].key.len == 4 | |
| 4587 && ngx_strncasecmp(src[i].key.data, (u_char *) "Host", 4) == 0) | |
| 4588 { | |
| 4589 conf->host_set = 1; | |
| 4590 } | |
| 4591 | |
| 4592 s = ngx_array_push(&headers_merged); | |
| 4593 if (s == NULL) { | |
| 4594 return NGX_ERROR; | |
| 4595 } | |
| 4596 | |
| 4597 *s = src[i]; | |
| 4598 } | |
| 4599 } | |
| 4600 | |
| 4601 h = default_headers; | |
| 4602 | |
| 4603 while (h->key.len) { | |
| 4604 | |
| 4605 src = headers_merged.elts; | |
| 4606 for (i = 0; i < headers_merged.nelts; i++) { | |
| 4607 if (ngx_strcasecmp(h->key.data, src[i].key.data) == 0) { | |
| 4608 goto next; | |
| 4609 } | |
| 4610 } | |
| 4611 | |
| 4612 s = ngx_array_push(&headers_merged); | |
| 4613 if (s == NULL) { | |
| 4614 return NGX_ERROR; | |
| 4615 } | |
| 4616 | |
| 4617 *s = *h; | |
| 4618 | |
| 4619 next: | |
| 4620 | |
| 4621 h++; | |
| 4622 } | |
| 4623 | |
| 4624 | |
| 4625 src = headers_merged.elts; | |
| 4626 for (i = 0; i < headers_merged.nelts; i++) { | |
| 4627 | |
| 4628 hk = ngx_array_push(&headers_names); | |
| 4629 if (hk == NULL) { | |
| 4630 return NGX_ERROR; | |
| 4631 } | |
| 4632 | |
| 4633 hk->key = src[i].key; | |
| 4634 hk->key_hash = ngx_hash_key_lc(src[i].key.data, src[i].key.len); | |
| 4635 hk->value = (void *) 1; | |
| 4636 | |
| 4637 if (src[i].value.len == 0) { | |
| 4638 continue; | |
| 4639 } | |
| 4640 | |
| 4641 copy = ngx_array_push_n(headers->lengths, | |
| 4642 sizeof(ngx_http_script_copy_code_t)); | |
| 4643 if (copy == NULL) { | |
| 4644 return NGX_ERROR; | |
| 4645 } | |
| 4646 | |
|
7271
9e25a5380a21
Silenced -Wcast-function-type warnings (closes #1546).
Sergey Kandaurov <pluknet@nginx.com>
parents:
7249
diff
changeset
|
4647 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
|
4648 ngx_http_script_copy_len_code; |
| 7233 | 4649 copy->len = src[i].key.len; |
| 4650 | |
| 4651 size = (sizeof(ngx_http_script_copy_code_t) | |
| 4652 + src[i].key.len + sizeof(uintptr_t) - 1) | |
| 4653 & ~(sizeof(uintptr_t) - 1); | |
| 4654 | |
| 4655 copy = ngx_array_push_n(headers->values, size); | |
| 4656 if (copy == NULL) { | |
| 4657 return NGX_ERROR; | |
| 4658 } | |
| 4659 | |
| 4660 copy->code = ngx_http_script_copy_code; | |
| 4661 copy->len = src[i].key.len; | |
| 4662 | |
| 4663 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t); | |
| 4664 ngx_memcpy(p, src[i].key.data, src[i].key.len); | |
| 4665 | |
| 4666 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
| 4667 | |
| 4668 sc.cf = cf; | |
| 4669 sc.source = &src[i].value; | |
| 4670 sc.flushes = &headers->flushes; | |
| 4671 sc.lengths = &headers->lengths; | |
| 4672 sc.values = &headers->values; | |
| 4673 | |
| 4674 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
| 4675 return NGX_ERROR; | |
| 4676 } | |
| 4677 | |
| 4678 code = ngx_array_push_n(headers->lengths, sizeof(uintptr_t)); | |
| 4679 if (code == NULL) { | |
| 4680 return NGX_ERROR; | |
| 4681 } | |
| 4682 | |
| 4683 *code = (uintptr_t) NULL; | |
| 4684 | |
| 4685 code = ngx_array_push_n(headers->values, sizeof(uintptr_t)); | |
| 4686 if (code == NULL) { | |
| 4687 return NGX_ERROR; | |
| 4688 } | |
| 4689 | |
| 4690 *code = (uintptr_t) NULL; | |
| 4691 } | |
| 4692 | |
| 4693 code = ngx_array_push_n(headers->lengths, sizeof(uintptr_t)); | |
| 4694 if (code == NULL) { | |
| 4695 return NGX_ERROR; | |
| 4696 } | |
| 4697 | |
| 4698 *code = (uintptr_t) NULL; | |
| 4699 | |
| 4700 | |
| 4701 hash.hash = &headers->hash; | |
| 4702 hash.key = ngx_hash_key_lc; | |
| 4703 hash.max_size = 512; | |
| 4704 hash.bucket_size = 64; | |
| 4705 hash.name = "grpc_headers_hash"; | |
| 4706 hash.pool = cf->pool; | |
| 4707 hash.temp_pool = NULL; | |
| 4708 | |
| 4709 return ngx_hash_init(&hash, headers_names.elts, headers_names.nelts); | |
| 4710 } | |
| 4711 | |
| 4712 | |
| 4713 static char * | |
| 4714 ngx_http_grpc_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 4715 { | |
| 4716 ngx_http_grpc_loc_conf_t *glcf = conf; | |
| 4717 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4718 size_t add; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4719 ngx_str_t *value, *url; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4720 ngx_url_t u; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4721 ngx_uint_t n; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4722 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
|
4723 ngx_http_script_compile_t sc; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4724 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4725 if (glcf->upstream.upstream || glcf->grpc_lengths) { |
| 7233 | 4726 return "is duplicate"; |
| 4727 } | |
| 4728 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4729 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
|
4730 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4731 clcf->handler = ngx_http_grpc_handler; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4732 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4733 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
|
4734 clcf->auto_redirect = 1; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4735 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4736 |
| 7233 | 4737 value = cf->args->elts; |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4738 |
| 7233 | 4739 url = &value[1]; |
| 4740 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4741 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
|
4742 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4743 if (n) { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4744 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4745 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
|
4746 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4747 sc.cf = cf; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4748 sc.source = url; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4749 sc.lengths = &glcf->grpc_lengths; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4750 sc.values = &glcf->grpc_values; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4751 sc.variables = n; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4752 sc.complete_lengths = 1; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4753 sc.complete_values = 1; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4754 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4755 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
|
4756 return NGX_CONF_ERROR; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4757 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4758 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4759 #if (NGX_HTTP_SSL) |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4760 glcf->ssl = 1; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4761 #endif |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4762 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4763 return NGX_CONF_OK; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4764 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4765 |
| 7233 | 4766 if (ngx_strncasecmp(url->data, (u_char *) "grpc://", 7) == 0) { |
| 4767 add = 7; | |
| 4768 | |
| 4769 } else if (ngx_strncasecmp(url->data, (u_char *) "grpcs://", 8) == 0) { | |
| 4770 | |
| 4771 #if (NGX_HTTP_SSL) | |
| 4772 glcf->ssl = 1; | |
| 4773 | |
| 4774 add = 8; | |
| 4775 #else | |
| 4776 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 4777 "grpcs protocol requires SSL support"); | |
| 4778 return NGX_CONF_ERROR; | |
| 4779 #endif | |
| 4780 | |
| 4781 } else { | |
| 4782 add = 0; | |
| 4783 } | |
| 4784 | |
| 4785 ngx_memzero(&u, sizeof(ngx_url_t)); | |
| 4786 | |
| 4787 u.url.len = url->len - add; | |
| 4788 u.url.data = url->data + add; | |
| 4789 u.no_resolve = 1; | |
| 4790 | |
| 4791 glcf->upstream.upstream = ngx_http_upstream_add(cf, &u, 0); | |
| 4792 if (glcf->upstream.upstream == NULL) { | |
| 4793 return NGX_CONF_ERROR; | |
| 4794 } | |
| 4795 | |
| 4796 if (u.family != AF_UNIX) { | |
| 4797 | |
| 4798 if (u.no_port) { | |
| 4799 glcf->host = u.host; | |
| 4800 | |
| 4801 } else { | |
| 4802 glcf->host.len = u.host.len + 1 + u.port_text.len; | |
| 4803 glcf->host.data = u.host.data; | |
| 4804 } | |
| 4805 | |
| 4806 } else { | |
| 4807 ngx_str_set(&glcf->host, "localhost"); | |
| 4808 } | |
| 4809 | |
| 4810 return NGX_CONF_OK; | |
| 4811 } | |
| 4812 | |
| 4813 | |
| 4814 #if (NGX_HTTP_SSL) | |
| 4815 | |
| 4816 static char * | |
| 4817 ngx_http_grpc_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 4818 { | |
| 4819 ngx_http_grpc_loc_conf_t *glcf = conf; | |
| 4820 | |
| 4821 ngx_str_t *value; | |
| 4822 | |
| 4823 if (glcf->ssl_passwords != NGX_CONF_UNSET_PTR) { | |
| 4824 return "is duplicate"; | |
| 4825 } | |
| 4826 | |
| 4827 value = cf->args->elts; | |
| 4828 | |
| 4829 glcf->ssl_passwords = ngx_ssl_read_password_file(cf, &value[1]); | |
| 4830 | |
| 4831 if (glcf->ssl_passwords == NULL) { | |
| 4832 return NGX_CONF_ERROR; | |
| 4833 } | |
| 4834 | |
| 4835 return NGX_CONF_OK; | |
| 4836 } | |
| 4837 | |
| 4838 | |
| 4839 static ngx_int_t | |
| 4840 ngx_http_grpc_set_ssl(ngx_conf_t *cf, ngx_http_grpc_loc_conf_t *glcf) | |
| 4841 { | |
| 4842 ngx_pool_cleanup_t *cln; | |
| 4843 | |
| 4844 glcf->upstream.ssl = ngx_pcalloc(cf->pool, sizeof(ngx_ssl_t)); | |
| 4845 if (glcf->upstream.ssl == NULL) { | |
| 4846 return NGX_ERROR; | |
| 4847 } | |
| 4848 | |
| 4849 glcf->upstream.ssl->log = cf->log; | |
| 4850 | |
| 4851 if (ngx_ssl_create(glcf->upstream.ssl, glcf->ssl_protocols, NULL) | |
| 4852 != NGX_OK) | |
| 4853 { | |
| 4854 return NGX_ERROR; | |
| 4855 } | |
| 4856 | |
| 4857 cln = ngx_pool_cleanup_add(cf->pool, 0); | |
| 4858 if (cln == NULL) { | |
|
7473
8981dbb12254
SSL: fixed potential leak on memory allocation errors.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7379
diff
changeset
|
4859 ngx_ssl_cleanup_ctx(glcf->upstream.ssl); |
| 7233 | 4860 return NGX_ERROR; |
| 4861 } | |
| 4862 | |
| 4863 cln->handler = ngx_ssl_cleanup_ctx; | |
| 4864 cln->data = glcf->upstream.ssl; | |
| 4865 | |
| 4866 if (glcf->ssl_certificate.len) { | |
| 4867 | |
| 4868 if (glcf->ssl_certificate_key.len == 0) { | |
| 4869 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 4870 "no \"grpc_ssl_certificate_key\" is defined " | |
| 4871 "for certificate \"%V\"", &glcf->ssl_certificate); | |
| 4872 return NGX_ERROR; | |
| 4873 } | |
| 4874 | |
| 4875 if (ngx_ssl_certificate(cf, glcf->upstream.ssl, &glcf->ssl_certificate, | |
| 4876 &glcf->ssl_certificate_key, glcf->ssl_passwords) | |
| 4877 != NGX_OK) | |
| 4878 { | |
| 4879 return NGX_ERROR; | |
| 4880 } | |
| 4881 } | |
| 4882 | |
| 4883 if (ngx_ssl_ciphers(cf, glcf->upstream.ssl, &glcf->ssl_ciphers, 0) | |
| 4884 != NGX_OK) | |
| 4885 { | |
| 4886 return NGX_ERROR; | |
| 4887 } | |
| 4888 | |
| 4889 if (glcf->upstream.ssl_verify) { | |
| 4890 if (glcf->ssl_trusted_certificate.len == 0) { | |
| 4891 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 4892 "no grpc_ssl_trusted_certificate for grpc_ssl_verify"); | |
| 4893 return NGX_ERROR; | |
| 4894 } | |
| 4895 | |
| 4896 if (ngx_ssl_trusted_certificate(cf, glcf->upstream.ssl, | |
| 4897 &glcf->ssl_trusted_certificate, | |
| 4898 glcf->ssl_verify_depth) | |
| 4899 != NGX_OK) | |
| 4900 { | |
| 4901 return NGX_ERROR; | |
| 4902 } | |
| 4903 | |
| 4904 if (ngx_ssl_crl(cf, glcf->upstream.ssl, &glcf->ssl_crl) != NGX_OK) { | |
| 4905 return NGX_ERROR; | |
| 4906 } | |
| 4907 } | |
| 4908 | |
|
7320
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4909 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
|
4910 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
|
4911 != NGX_OK) |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4912 { |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4913 return NGX_ERROR; |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4914 } |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4915 |
| 7233 | 4916 #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation |
| 4917 | |
| 4918 if (SSL_CTX_set_alpn_protos(glcf->upstream.ssl->ctx, | |
| 4919 (u_char *) "\x02h2", 3) | |
| 4920 != 0) | |
| 4921 { | |
| 4922 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, | |
| 4923 "SSL_CTX_set_alpn_protos() failed"); | |
| 4924 return NGX_ERROR; | |
| 4925 } | |
| 4926 | |
| 4927 #endif | |
| 4928 | |
| 4929 return NGX_OK; | |
| 4930 } | |
| 4931 | |
| 4932 #endif |