Mercurial > hg > nginx-quic
annotate src/http/modules/ngx_http_grpc_module.c @ 8200:279ad36f2f4b quic
QUIC: renamed c->qs to c->quic.
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Tue, 10 Nov 2020 19:40:00 +0000 |
parents | 1a719ee45526 |
children | a46fcf101cfc |
rev | line source |
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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; | |
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43 ngx_array_t *ssl_conf_commands; |
7233 | 44 #endif |
45 } ngx_http_grpc_loc_conf_t; | |
46 | |
47 | |
48 typedef enum { | |
49 ngx_http_grpc_st_start = 0, | |
50 ngx_http_grpc_st_length_2, | |
51 ngx_http_grpc_st_length_3, | |
52 ngx_http_grpc_st_type, | |
53 ngx_http_grpc_st_flags, | |
54 ngx_http_grpc_st_stream_id, | |
55 ngx_http_grpc_st_stream_id_2, | |
56 ngx_http_grpc_st_stream_id_3, | |
57 ngx_http_grpc_st_stream_id_4, | |
58 ngx_http_grpc_st_payload, | |
59 ngx_http_grpc_st_padding | |
60 } ngx_http_grpc_state_e; | |
61 | |
62 | |
63 typedef struct { | |
64 size_t init_window; | |
65 size_t send_window; | |
66 size_t recv_window; | |
67 ngx_uint_t last_stream_id; | |
68 } ngx_http_grpc_conn_t; | |
69 | |
70 | |
71 typedef struct { | |
72 ngx_http_grpc_state_e state; | |
73 ngx_uint_t frame_state; | |
74 ngx_uint_t fragment_state; | |
75 | |
76 ngx_chain_t *in; | |
77 ngx_chain_t *out; | |
78 ngx_chain_t *free; | |
79 ngx_chain_t *busy; | |
80 | |
81 ngx_http_grpc_conn_t *connection; | |
82 | |
83 ngx_uint_t id; | |
84 | |
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85 ngx_uint_t pings; |
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86 ngx_uint_t settings; |
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87 |
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88 off_t length; |
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89 |
7233 | 90 ssize_t send_window; |
91 size_t recv_window; | |
92 | |
93 size_t rest; | |
94 ngx_uint_t stream_id; | |
95 u_char type; | |
96 u_char flags; | |
97 u_char padding; | |
98 | |
99 ngx_uint_t error; | |
100 ngx_uint_t window_update; | |
101 | |
102 ngx_uint_t setting_id; | |
103 ngx_uint_t setting_value; | |
104 | |
105 u_char ping_data[8]; | |
106 | |
107 ngx_uint_t index; | |
108 ngx_str_t name; | |
109 ngx_str_t value; | |
110 | |
111 u_char *field_end; | |
112 size_t field_length; | |
113 size_t field_rest; | |
114 u_char field_state; | |
115 | |
116 unsigned literal:1; | |
117 unsigned field_huffman:1; | |
118 | |
119 unsigned header_sent:1; | |
120 unsigned output_closed:1; | |
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121 unsigned output_blocked:1; |
7233 | 122 unsigned parsing_headers:1; |
123 unsigned end_stream:1; | |
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124 unsigned done:1; |
7233 | 125 unsigned status:1; |
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126 unsigned rst:1; |
7233 | 127 |
128 ngx_http_request_t *request; | |
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129 |
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130 ngx_str_t host; |
7233 | 131 } ngx_http_grpc_ctx_t; |
132 | |
133 | |
134 typedef struct { | |
135 u_char length_0; | |
136 u_char length_1; | |
137 u_char length_2; | |
138 u_char type; | |
139 u_char flags; | |
140 u_char stream_id_0; | |
141 u_char stream_id_1; | |
142 u_char stream_id_2; | |
143 u_char stream_id_3; | |
144 } ngx_http_grpc_frame_t; | |
145 | |
146 | |
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147 static ngx_int_t ngx_http_grpc_eval(ngx_http_request_t *r, |
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148 ngx_http_grpc_ctx_t *ctx, ngx_http_grpc_loc_conf_t *glcf); |
7233 | 149 static ngx_int_t ngx_http_grpc_create_request(ngx_http_request_t *r); |
150 static ngx_int_t ngx_http_grpc_reinit_request(ngx_http_request_t *r); | |
151 static ngx_int_t ngx_http_grpc_body_output_filter(void *data, ngx_chain_t *in); | |
152 static ngx_int_t ngx_http_grpc_process_header(ngx_http_request_t *r); | |
153 static ngx_int_t ngx_http_grpc_filter_init(void *data); | |
154 static ngx_int_t ngx_http_grpc_filter(void *data, ssize_t bytes); | |
155 | |
156 static ngx_int_t ngx_http_grpc_parse_frame(ngx_http_request_t *r, | |
157 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
158 static ngx_int_t ngx_http_grpc_parse_header(ngx_http_request_t *r, | |
159 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
160 static ngx_int_t ngx_http_grpc_parse_fragment(ngx_http_request_t *r, | |
161 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
162 static ngx_int_t ngx_http_grpc_validate_header_name(ngx_http_request_t *r, | |
163 ngx_str_t *s); | |
164 static ngx_int_t ngx_http_grpc_validate_header_value(ngx_http_request_t *r, | |
165 ngx_str_t *s); | |
166 static ngx_int_t ngx_http_grpc_parse_rst_stream(ngx_http_request_t *r, | |
167 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
168 static ngx_int_t ngx_http_grpc_parse_goaway(ngx_http_request_t *r, | |
169 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
170 static ngx_int_t ngx_http_grpc_parse_window_update(ngx_http_request_t *r, | |
171 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
172 static ngx_int_t ngx_http_grpc_parse_settings(ngx_http_request_t *r, | |
173 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
174 static ngx_int_t ngx_http_grpc_parse_ping(ngx_http_request_t *r, | |
175 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
176 | |
177 static ngx_int_t ngx_http_grpc_send_settings_ack(ngx_http_request_t *r, | |
178 ngx_http_grpc_ctx_t *ctx); | |
179 static ngx_int_t ngx_http_grpc_send_ping_ack(ngx_http_request_t *r, | |
180 ngx_http_grpc_ctx_t *ctx); | |
181 static ngx_int_t ngx_http_grpc_send_window_update(ngx_http_request_t *r, | |
182 ngx_http_grpc_ctx_t *ctx); | |
183 | |
184 static ngx_chain_t *ngx_http_grpc_get_buf(ngx_http_request_t *r, | |
185 ngx_http_grpc_ctx_t *ctx); | |
186 static ngx_http_grpc_ctx_t *ngx_http_grpc_get_ctx(ngx_http_request_t *r); | |
187 static ngx_int_t ngx_http_grpc_get_connection_data(ngx_http_request_t *r, | |
188 ngx_http_grpc_ctx_t *ctx, ngx_peer_connection_t *pc); | |
189 static void ngx_http_grpc_cleanup(void *data); | |
190 | |
191 static void ngx_http_grpc_abort_request(ngx_http_request_t *r); | |
192 static void ngx_http_grpc_finalize_request(ngx_http_request_t *r, | |
193 ngx_int_t rc); | |
194 | |
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195 static ngx_int_t ngx_http_grpc_internal_trailers_variable( |
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196 ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); |
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197 |
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198 static ngx_int_t ngx_http_grpc_add_variables(ngx_conf_t *cf); |
7233 | 199 static void *ngx_http_grpc_create_loc_conf(ngx_conf_t *cf); |
200 static char *ngx_http_grpc_merge_loc_conf(ngx_conf_t *cf, | |
201 void *parent, void *child); | |
202 static ngx_int_t ngx_http_grpc_init_headers(ngx_conf_t *cf, | |
203 ngx_http_grpc_loc_conf_t *conf, ngx_http_grpc_headers_t *headers, | |
204 ngx_keyval_t *default_headers); | |
205 | |
206 static char *ngx_http_grpc_pass(ngx_conf_t *cf, ngx_command_t *cmd, | |
207 void *conf); | |
208 | |
209 #if (NGX_HTTP_SSL) | |
210 static char *ngx_http_grpc_ssl_password_file(ngx_conf_t *cf, | |
211 ngx_command_t *cmd, void *conf); | |
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212 static char *ngx_http_grpc_ssl_conf_command_check(ngx_conf_t *cf, void *post, |
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213 void *data); |
7233 | 214 static ngx_int_t ngx_http_grpc_set_ssl(ngx_conf_t *cf, |
215 ngx_http_grpc_loc_conf_t *glcf); | |
216 #endif | |
217 | |
218 | |
219 static ngx_conf_bitmask_t ngx_http_grpc_next_upstream_masks[] = { | |
220 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR }, | |
221 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT }, | |
222 { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER }, | |
223 { ngx_string("non_idempotent"), NGX_HTTP_UPSTREAM_FT_NON_IDEMPOTENT }, | |
224 { ngx_string("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500 }, | |
225 { ngx_string("http_502"), NGX_HTTP_UPSTREAM_FT_HTTP_502 }, | |
226 { ngx_string("http_503"), NGX_HTTP_UPSTREAM_FT_HTTP_503 }, | |
227 { ngx_string("http_504"), NGX_HTTP_UPSTREAM_FT_HTTP_504 }, | |
228 { ngx_string("http_403"), NGX_HTTP_UPSTREAM_FT_HTTP_403 }, | |
229 { ngx_string("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404 }, | |
230 { ngx_string("http_429"), NGX_HTTP_UPSTREAM_FT_HTTP_429 }, | |
231 { ngx_string("off"), NGX_HTTP_UPSTREAM_FT_OFF }, | |
232 { ngx_null_string, 0 } | |
233 }; | |
234 | |
235 | |
236 #if (NGX_HTTP_SSL) | |
237 | |
238 static ngx_conf_bitmask_t ngx_http_grpc_ssl_protocols[] = { | |
239 { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, | |
240 { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, | |
241 { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, | |
242 { ngx_string("TLSv1.1"), NGX_SSL_TLSv1_1 }, | |
243 { ngx_string("TLSv1.2"), NGX_SSL_TLSv1_2 }, | |
244 { ngx_string("TLSv1.3"), NGX_SSL_TLSv1_3 }, | |
245 { ngx_null_string, 0 } | |
246 }; | |
247 | |
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248 static ngx_conf_post_t ngx_http_grpc_ssl_conf_command_post = |
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249 { ngx_http_grpc_ssl_conf_command_check }; |
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250 |
7233 | 251 #endif |
252 | |
253 | |
254 static ngx_command_t ngx_http_grpc_commands[] = { | |
255 | |
256 { ngx_string("grpc_pass"), | |
257 NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1, | |
258 ngx_http_grpc_pass, | |
259 NGX_HTTP_LOC_CONF_OFFSET, | |
260 0, | |
261 NULL }, | |
262 | |
263 { ngx_string("grpc_bind"), | |
264 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12, | |
265 ngx_http_upstream_bind_set_slot, | |
266 NGX_HTTP_LOC_CONF_OFFSET, | |
267 offsetof(ngx_http_grpc_loc_conf_t, upstream.local), | |
268 NULL }, | |
269 | |
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270 { ngx_string("grpc_socket_keepalive"), |
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271 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
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272 ngx_conf_set_flag_slot, |
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273 NGX_HTTP_LOC_CONF_OFFSET, |
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274 offsetof(ngx_http_grpc_loc_conf_t, upstream.socket_keepalive), |
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275 NULL }, |
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276 |
7233 | 277 { ngx_string("grpc_connect_timeout"), |
278 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
279 ngx_conf_set_msec_slot, | |
280 NGX_HTTP_LOC_CONF_OFFSET, | |
281 offsetof(ngx_http_grpc_loc_conf_t, upstream.connect_timeout), | |
282 NULL }, | |
283 | |
284 { ngx_string("grpc_send_timeout"), | |
285 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
286 ngx_conf_set_msec_slot, | |
287 NGX_HTTP_LOC_CONF_OFFSET, | |
288 offsetof(ngx_http_grpc_loc_conf_t, upstream.send_timeout), | |
289 NULL }, | |
290 | |
291 { ngx_string("grpc_intercept_errors"), | |
292 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
293 ngx_conf_set_flag_slot, | |
294 NGX_HTTP_LOC_CONF_OFFSET, | |
295 offsetof(ngx_http_grpc_loc_conf_t, upstream.intercept_errors), | |
296 NULL }, | |
297 | |
298 { ngx_string("grpc_buffer_size"), | |
299 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
300 ngx_conf_set_size_slot, | |
301 NGX_HTTP_LOC_CONF_OFFSET, | |
302 offsetof(ngx_http_grpc_loc_conf_t, upstream.buffer_size), | |
303 NULL }, | |
304 | |
305 { ngx_string("grpc_read_timeout"), | |
306 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
307 ngx_conf_set_msec_slot, | |
308 NGX_HTTP_LOC_CONF_OFFSET, | |
309 offsetof(ngx_http_grpc_loc_conf_t, upstream.read_timeout), | |
310 NULL }, | |
311 | |
312 { ngx_string("grpc_next_upstream"), | |
313 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
314 ngx_conf_set_bitmask_slot, | |
315 NGX_HTTP_LOC_CONF_OFFSET, | |
316 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream), | |
317 &ngx_http_grpc_next_upstream_masks }, | |
318 | |
319 { ngx_string("grpc_next_upstream_tries"), | |
320 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
321 ngx_conf_set_num_slot, | |
322 NGX_HTTP_LOC_CONF_OFFSET, | |
323 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream_tries), | |
324 NULL }, | |
325 | |
326 { ngx_string("grpc_next_upstream_timeout"), | |
327 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
328 ngx_conf_set_msec_slot, | |
329 NGX_HTTP_LOC_CONF_OFFSET, | |
330 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream_timeout), | |
331 NULL }, | |
332 | |
333 { ngx_string("grpc_set_header"), | |
334 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, | |
335 ngx_conf_set_keyval_slot, | |
336 NGX_HTTP_LOC_CONF_OFFSET, | |
337 offsetof(ngx_http_grpc_loc_conf_t, headers_source), | |
338 NULL }, | |
339 | |
340 { ngx_string("grpc_pass_header"), | |
341 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
342 ngx_conf_set_str_array_slot, | |
343 NGX_HTTP_LOC_CONF_OFFSET, | |
344 offsetof(ngx_http_grpc_loc_conf_t, upstream.pass_headers), | |
345 NULL }, | |
346 | |
347 { ngx_string("grpc_hide_header"), | |
348 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
349 ngx_conf_set_str_array_slot, | |
350 NGX_HTTP_LOC_CONF_OFFSET, | |
351 offsetof(ngx_http_grpc_loc_conf_t, upstream.hide_headers), | |
352 NULL }, | |
353 | |
354 { ngx_string("grpc_ignore_headers"), | |
355 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
356 ngx_conf_set_bitmask_slot, | |
357 NGX_HTTP_LOC_CONF_OFFSET, | |
358 offsetof(ngx_http_grpc_loc_conf_t, upstream.ignore_headers), | |
359 &ngx_http_upstream_ignore_headers_masks }, | |
360 | |
361 #if (NGX_HTTP_SSL) | |
362 | |
363 { ngx_string("grpc_ssl_session_reuse"), | |
364 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
365 ngx_conf_set_flag_slot, | |
366 NGX_HTTP_LOC_CONF_OFFSET, | |
367 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_session_reuse), | |
368 NULL }, | |
369 | |
370 { ngx_string("grpc_ssl_protocols"), | |
371 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
372 ngx_conf_set_bitmask_slot, | |
373 NGX_HTTP_LOC_CONF_OFFSET, | |
374 offsetof(ngx_http_grpc_loc_conf_t, ssl_protocols), | |
375 &ngx_http_grpc_ssl_protocols }, | |
376 | |
377 { ngx_string("grpc_ssl_ciphers"), | |
378 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
379 ngx_conf_set_str_slot, | |
380 NGX_HTTP_LOC_CONF_OFFSET, | |
381 offsetof(ngx_http_grpc_loc_conf_t, ssl_ciphers), | |
382 NULL }, | |
383 | |
384 { ngx_string("grpc_ssl_name"), | |
385 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
386 ngx_http_set_complex_value_slot, | |
387 NGX_HTTP_LOC_CONF_OFFSET, | |
388 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_name), | |
389 NULL }, | |
390 | |
391 { ngx_string("grpc_ssl_server_name"), | |
392 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
393 ngx_conf_set_flag_slot, | |
394 NGX_HTTP_LOC_CONF_OFFSET, | |
395 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_server_name), | |
396 NULL }, | |
397 | |
398 { ngx_string("grpc_ssl_verify"), | |
399 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
400 ngx_conf_set_flag_slot, | |
401 NGX_HTTP_LOC_CONF_OFFSET, | |
402 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_verify), | |
403 NULL }, | |
404 | |
405 { ngx_string("grpc_ssl_verify_depth"), | |
406 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
407 ngx_conf_set_num_slot, | |
408 NGX_HTTP_LOC_CONF_OFFSET, | |
409 offsetof(ngx_http_grpc_loc_conf_t, ssl_verify_depth), | |
410 NULL }, | |
411 | |
412 { ngx_string("grpc_ssl_trusted_certificate"), | |
413 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
414 ngx_conf_set_str_slot, | |
415 NGX_HTTP_LOC_CONF_OFFSET, | |
416 offsetof(ngx_http_grpc_loc_conf_t, ssl_trusted_certificate), | |
417 NULL }, | |
418 | |
419 { ngx_string("grpc_ssl_crl"), | |
420 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
421 ngx_conf_set_str_slot, | |
422 NGX_HTTP_LOC_CONF_OFFSET, | |
423 offsetof(ngx_http_grpc_loc_conf_t, ssl_crl), | |
424 NULL }, | |
425 | |
426 { ngx_string("grpc_ssl_certificate"), | |
427 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
428 ngx_conf_set_str_slot, | |
429 NGX_HTTP_LOC_CONF_OFFSET, | |
430 offsetof(ngx_http_grpc_loc_conf_t, ssl_certificate), | |
431 NULL }, | |
432 | |
433 { ngx_string("grpc_ssl_certificate_key"), | |
434 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
435 ngx_conf_set_str_slot, | |
436 NGX_HTTP_LOC_CONF_OFFSET, | |
437 offsetof(ngx_http_grpc_loc_conf_t, ssl_certificate_key), | |
438 NULL }, | |
439 | |
440 { ngx_string("grpc_ssl_password_file"), | |
441 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
442 ngx_http_grpc_ssl_password_file, | |
443 NGX_HTTP_LOC_CONF_OFFSET, | |
444 0, | |
445 NULL }, | |
446 | |
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447 { ngx_string("grpc_ssl_conf_command"), |
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448 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, |
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449 ngx_conf_set_keyval_slot, |
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450 NGX_HTTP_LOC_CONF_OFFSET, |
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451 offsetof(ngx_http_grpc_loc_conf_t, ssl_conf_commands), |
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452 &ngx_http_grpc_ssl_conf_command_post }, |
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453 |
7233 | 454 #endif |
455 | |
456 ngx_null_command | |
457 }; | |
458 | |
459 | |
460 static ngx_http_module_t ngx_http_grpc_module_ctx = { | |
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461 ngx_http_grpc_add_variables, /* preconfiguration */ |
7233 | 462 NULL, /* postconfiguration */ |
463 | |
464 NULL, /* create main configuration */ | |
465 NULL, /* init main configuration */ | |
466 | |
467 NULL, /* create server configuration */ | |
468 NULL, /* merge server configuration */ | |
469 | |
470 ngx_http_grpc_create_loc_conf, /* create location configuration */ | |
471 ngx_http_grpc_merge_loc_conf /* merge location configuration */ | |
472 }; | |
473 | |
474 | |
475 ngx_module_t ngx_http_grpc_module = { | |
476 NGX_MODULE_V1, | |
477 &ngx_http_grpc_module_ctx, /* module context */ | |
478 ngx_http_grpc_commands, /* module directives */ | |
479 NGX_HTTP_MODULE, /* module type */ | |
480 NULL, /* init master */ | |
481 NULL, /* init module */ | |
482 NULL, /* init process */ | |
483 NULL, /* init thread */ | |
484 NULL, /* exit thread */ | |
485 NULL, /* exit process */ | |
486 NULL, /* exit master */ | |
487 NGX_MODULE_V1_PADDING | |
488 }; | |
489 | |
490 | |
491 static u_char ngx_http_grpc_connection_start[] = | |
492 "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n" /* connection preface */ | |
493 | |
494 "\x00\x00\x12\x04\x00\x00\x00\x00\x00" /* settings frame */ | |
495 "\x00\x01\x00\x00\x00\x00" /* header table size */ | |
496 "\x00\x02\x00\x00\x00\x00" /* disable push */ | |
497 "\x00\x04\x7f\xff\xff\xff" /* initial window */ | |
498 | |
499 "\x00\x00\x04\x08\x00\x00\x00\x00\x00" /* window update frame */ | |
500 "\x7f\xff\x00\x00"; | |
501 | |
502 | |
503 static ngx_keyval_t ngx_http_grpc_headers[] = { | |
504 { ngx_string("Content-Length"), ngx_string("$content_length") }, | |
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505 { ngx_string("TE"), ngx_string("$grpc_internal_trailers") }, |
7233 | 506 { ngx_string("Host"), ngx_string("") }, |
507 { ngx_string("Connection"), ngx_string("") }, | |
508 { ngx_string("Transfer-Encoding"), ngx_string("") }, | |
509 { ngx_string("Keep-Alive"), ngx_string("") }, | |
510 { ngx_string("Expect"), ngx_string("") }, | |
511 { ngx_string("Upgrade"), ngx_string("") }, | |
512 { ngx_null_string, ngx_null_string } | |
513 }; | |
514 | |
515 | |
516 static ngx_str_t ngx_http_grpc_hide_headers[] = { | |
517 ngx_string("Date"), | |
518 ngx_string("Server"), | |
519 ngx_string("X-Accel-Expires"), | |
520 ngx_string("X-Accel-Redirect"), | |
521 ngx_string("X-Accel-Limit-Rate"), | |
522 ngx_string("X-Accel-Buffering"), | |
523 ngx_string("X-Accel-Charset"), | |
524 ngx_null_string | |
525 }; | |
526 | |
527 | |
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528 static ngx_http_variable_t ngx_http_grpc_vars[] = { |
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529 |
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530 { ngx_string("grpc_internal_trailers"), NULL, |
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531 ngx_http_grpc_internal_trailers_variable, 0, |
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532 NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_NOHASH, 0 }, |
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533 |
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534 ngx_http_null_variable |
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535 }; |
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536 |
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537 |
7233 | 538 static ngx_int_t |
539 ngx_http_grpc_handler(ngx_http_request_t *r) | |
540 { | |
541 ngx_int_t rc; | |
542 ngx_http_upstream_t *u; | |
543 ngx_http_grpc_ctx_t *ctx; | |
544 ngx_http_grpc_loc_conf_t *glcf; | |
545 | |
546 if (ngx_http_upstream_create(r) != NGX_OK) { | |
547 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
548 } | |
549 | |
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550 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_grpc_ctx_t)); |
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551 if (ctx == NULL) { |
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552 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
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553 } |
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554 |
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555 ctx->request = r; |
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556 |
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557 ngx_http_set_ctx(r, ctx, ngx_http_grpc_module); |
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558 |
7233 | 559 glcf = ngx_http_get_module_loc_conf(r, ngx_http_grpc_module); |
560 | |
561 u = r->upstream; | |
562 | |
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563 if (glcf->grpc_lengths == NULL) { |
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564 ctx->host = glcf->host; |
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565 |
7233 | 566 #if (NGX_HTTP_SSL) |
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567 u->ssl = (glcf->upstream.ssl != NULL); |
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568 |
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569 if (u->ssl) { |
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570 ngx_str_set(&u->schema, "grpcs://"); |
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571 |
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572 } else { |
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573 ngx_str_set(&u->schema, "grpc://"); |
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574 } |
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575 #else |
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576 ngx_str_set(&u->schema, "grpc://"); |
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577 #endif |
7233 | 578 |
579 } else { | |
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580 if (ngx_http_grpc_eval(r, ctx, glcf) != NGX_OK) { |
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581 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
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582 } |
7233 | 583 } |
584 | |
585 u->output.tag = (ngx_buf_tag_t) &ngx_http_grpc_module; | |
586 | |
587 u->conf = &glcf->upstream; | |
588 | |
589 u->create_request = ngx_http_grpc_create_request; | |
590 u->reinit_request = ngx_http_grpc_reinit_request; | |
591 u->process_header = ngx_http_grpc_process_header; | |
592 u->abort_request = ngx_http_grpc_abort_request; | |
593 u->finalize_request = ngx_http_grpc_finalize_request; | |
594 | |
595 u->input_filter_init = ngx_http_grpc_filter_init; | |
596 u->input_filter = ngx_http_grpc_filter; | |
597 u->input_filter_ctx = ctx; | |
598 | |
599 r->request_body_no_buffering = 1; | |
600 | |
601 rc = ngx_http_read_client_request_body(r, ngx_http_upstream_init); | |
602 | |
603 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) { | |
604 return rc; | |
605 } | |
606 | |
607 return NGX_DONE; | |
608 } | |
609 | |
610 | |
611 static ngx_int_t | |
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612 ngx_http_grpc_eval(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, |
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613 ngx_http_grpc_loc_conf_t *glcf) |
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614 { |
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615 size_t add; |
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616 ngx_url_t url; |
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617 ngx_http_upstream_t *u; |
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618 |
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619 ngx_memzero(&url, sizeof(ngx_url_t)); |
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620 |
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621 if (ngx_http_script_run(r, &url.url, glcf->grpc_lengths->elts, 0, |
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622 glcf->grpc_values->elts) |
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623 == NULL) |
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624 { |
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625 return NGX_ERROR; |
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626 } |
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627 |
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628 if (url.url.len > 7 |
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629 && ngx_strncasecmp(url.url.data, (u_char *) "grpc://", 7) == 0) |
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630 { |
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631 add = 7; |
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632 |
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633 } else if (url.url.len > 8 |
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634 && ngx_strncasecmp(url.url.data, (u_char *) "grpcs://", 8) == 0) |
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635 { |
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636 |
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637 #if (NGX_HTTP_SSL) |
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638 add = 8; |
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639 r->upstream->ssl = 1; |
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640 #else |
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641 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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642 "grpcs protocol requires SSL support"); |
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643 return NGX_ERROR; |
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644 #endif |
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645 |
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646 } else { |
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647 add = 0; |
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648 } |
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649 |
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650 u = r->upstream; |
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651 |
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652 if (add) { |
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653 u->schema.len = add; |
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654 u->schema.data = url.url.data; |
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655 |
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656 url.url.data += add; |
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657 url.url.len -= add; |
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658 |
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659 } else { |
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660 ngx_str_set(&u->schema, "grpc://"); |
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661 } |
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662 |
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663 url.no_resolve = 1; |
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664 |
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665 if (ngx_parse_url(r->pool, &url) != NGX_OK) { |
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666 if (url.err) { |
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667 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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668 "%s in upstream \"%V\"", url.err, &url.url); |
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669 } |
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670 |
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671 return NGX_ERROR; |
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672 } |
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673 |
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674 u->resolved = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_resolved_t)); |
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675 if (u->resolved == NULL) { |
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676 return NGX_ERROR; |
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677 } |
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678 |
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679 if (url.addrs) { |
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680 u->resolved->sockaddr = url.addrs[0].sockaddr; |
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681 u->resolved->socklen = url.addrs[0].socklen; |
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682 u->resolved->name = url.addrs[0].name; |
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683 u->resolved->naddrs = 1; |
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684 } |
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685 |
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686 u->resolved->host = url.host; |
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687 u->resolved->port = url.port; |
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688 u->resolved->no_port = url.no_port; |
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689 |
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690 if (url.family != AF_UNIX) { |
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691 |
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692 if (url.no_port) { |
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693 ctx->host = url.host; |
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694 |
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695 } else { |
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696 ctx->host.len = url.host.len + 1 + url.port_text.len; |
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697 ctx->host.data = url.host.data; |
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698 } |
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699 |
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700 } else { |
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701 ngx_str_set(&ctx->host, "localhost"); |
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702 } |
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703 |
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704 return NGX_OK; |
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705 } |
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706 |
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707 |
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708 static ngx_int_t |
7233 | 709 ngx_http_grpc_create_request(ngx_http_request_t *r) |
710 { | |
711 u_char *p, *tmp, *key_tmp, *val_tmp, *headers_frame; | |
712 size_t len, tmp_len, key_len, val_len, uri_len; | |
713 uintptr_t escape; | |
714 ngx_buf_t *b; | |
715 ngx_uint_t i, next; | |
716 ngx_chain_t *cl, *body; | |
717 ngx_list_part_t *part; | |
718 ngx_table_elt_t *header; | |
7619
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719 ngx_http_grpc_ctx_t *ctx; |
7233 | 720 ngx_http_upstream_t *u; |
721 ngx_http_grpc_frame_t *f; | |
722 ngx_http_script_code_pt code; | |
723 ngx_http_grpc_loc_conf_t *glcf; | |
724 ngx_http_script_engine_t e, le; | |
725 ngx_http_script_len_code_pt lcode; | |
726 | |
727 u = r->upstream; | |
728 | |
729 glcf = ngx_http_get_module_loc_conf(r, ngx_http_grpc_module); | |
730 | |
7619
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731 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); |
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732 |
7233 | 733 len = sizeof(ngx_http_grpc_connection_start) - 1 |
734 + sizeof(ngx_http_grpc_frame_t); /* headers frame */ | |
735 | |
736 /* :method header */ | |
737 | |
738 if (r->method == NGX_HTTP_GET || r->method == NGX_HTTP_POST) { | |
739 len += 1; | |
740 tmp_len = 0; | |
741 | |
742 } else { | |
743 len += 1 + NGX_HTTP_V2_INT_OCTETS + r->method_name.len; | |
744 tmp_len = r->method_name.len; | |
745 } | |
746 | |
747 /* :scheme header */ | |
748 | |
749 len += 1; | |
750 | |
751 /* :path header */ | |
752 | |
753 if (r->valid_unparsed_uri) { | |
754 escape = 0; | |
755 uri_len = r->unparsed_uri.len; | |
756 | |
757 } else { | |
758 escape = 2 * ngx_escape_uri(NULL, r->uri.data, r->uri.len, | |
759 NGX_ESCAPE_URI); | |
760 uri_len = r->uri.len + escape + sizeof("?") - 1 + r->args.len; | |
761 } | |
762 | |
763 len += 1 + NGX_HTTP_V2_INT_OCTETS + uri_len; | |
764 | |
765 if (tmp_len < uri_len) { | |
766 tmp_len = uri_len; | |
767 } | |
768 | |
769 /* :authority header */ | |
770 | |
771 if (!glcf->host_set) { | |
7619
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772 len += 1 + NGX_HTTP_V2_INT_OCTETS + ctx->host.len; |
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773 |
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|
774 if (tmp_len < ctx->host.len) { |
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775 tmp_len = ctx->host.len; |
7233 | 776 } |
777 } | |
778 | |
779 /* other headers */ | |
780 | |
781 ngx_http_script_flush_no_cacheable_variables(r, glcf->headers.flushes); | |
782 ngx_memzero(&le, sizeof(ngx_http_script_engine_t)); | |
783 | |
784 le.ip = glcf->headers.lengths->elts; | |
785 le.request = r; | |
786 le.flushed = 1; | |
787 | |
788 while (*(uintptr_t *) le.ip) { | |
789 | |
790 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
791 key_len = lcode(&le); | |
792 | |
793 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { | |
794 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
795 } | |
796 le.ip += sizeof(uintptr_t); | |
797 | |
798 if (val_len == 0) { | |
799 continue; | |
800 } | |
801 | |
802 len += 1 + NGX_HTTP_V2_INT_OCTETS + key_len | |
803 + NGX_HTTP_V2_INT_OCTETS + val_len; | |
804 | |
805 if (tmp_len < key_len) { | |
806 tmp_len = key_len; | |
807 } | |
808 | |
809 if (tmp_len < val_len) { | |
810 tmp_len = val_len; | |
811 } | |
812 } | |
813 | |
814 if (glcf->upstream.pass_request_headers) { | |
815 part = &r->headers_in.headers.part; | |
816 header = part->elts; | |
817 | |
818 for (i = 0; /* void */; i++) { | |
819 | |
820 if (i >= part->nelts) { | |
821 if (part->next == NULL) { | |
822 break; | |
823 } | |
824 | |
825 part = part->next; | |
826 header = part->elts; | |
827 i = 0; | |
828 } | |
829 | |
830 if (ngx_hash_find(&glcf->headers.hash, header[i].hash, | |
831 header[i].lowcase_key, header[i].key.len)) | |
832 { | |
833 continue; | |
834 } | |
835 | |
836 len += 1 + NGX_HTTP_V2_INT_OCTETS + header[i].key.len | |
837 + NGX_HTTP_V2_INT_OCTETS + header[i].value.len; | |
838 | |
839 if (tmp_len < header[i].key.len) { | |
840 tmp_len = header[i].key.len; | |
841 } | |
842 | |
843 if (tmp_len < header[i].value.len) { | |
844 tmp_len = header[i].value.len; | |
845 } | |
846 } | |
847 } | |
848 | |
849 /* continuation frames */ | |
850 | |
851 len += sizeof(ngx_http_grpc_frame_t) | |
852 * (len / NGX_HTTP_V2_DEFAULT_FRAME_SIZE); | |
853 | |
854 | |
855 b = ngx_create_temp_buf(r->pool, len); | |
856 if (b == NULL) { | |
857 return NGX_ERROR; | |
858 } | |
859 | |
860 cl = ngx_alloc_chain_link(r->pool); | |
861 if (cl == NULL) { | |
862 return NGX_ERROR; | |
863 } | |
864 | |
865 cl->buf = b; | |
866 cl->next = NULL; | |
867 | |
868 tmp = ngx_palloc(r->pool, tmp_len * 3); | |
869 if (tmp == NULL) { | |
870 return NGX_ERROR; | |
871 } | |
872 | |
873 key_tmp = tmp + tmp_len; | |
874 val_tmp = tmp + 2 * tmp_len; | |
875 | |
876 /* connection preface */ | |
877 | |
878 b->last = ngx_copy(b->last, ngx_http_grpc_connection_start, | |
879 sizeof(ngx_http_grpc_connection_start) - 1); | |
880 | |
881 /* headers frame */ | |
882 | |
883 headers_frame = b->last; | |
884 | |
885 f = (ngx_http_grpc_frame_t *) b->last; | |
886 b->last += sizeof(ngx_http_grpc_frame_t); | |
887 | |
888 f->length_0 = 0; | |
889 f->length_1 = 0; | |
890 f->length_2 = 0; | |
891 f->type = NGX_HTTP_V2_HEADERS_FRAME; | |
892 f->flags = 0; | |
893 f->stream_id_0 = 0; | |
894 f->stream_id_1 = 0; | |
895 f->stream_id_2 = 0; | |
896 f->stream_id_3 = 1; | |
897 | |
898 if (r->method == NGX_HTTP_GET) { | |
899 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_METHOD_GET_INDEX); | |
900 | |
901 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
902 "grpc header: \":method: GET\""); | |
903 | |
904 } else if (r->method == NGX_HTTP_POST) { | |
905 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_METHOD_POST_INDEX); | |
906 | |
907 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
908 "grpc header: \":method: POST\""); | |
909 | |
910 } else { | |
911 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_METHOD_INDEX); | |
912 b->last = ngx_http_v2_write_value(b->last, r->method_name.data, | |
913 r->method_name.len, tmp); | |
914 | |
915 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
916 "grpc header: \":method: %V\"", &r->method_name); | |
917 } | |
918 | |
919 #if (NGX_HTTP_SSL) | |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
920 if (u->ssl) { |
7233 | 921 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_SCHEME_HTTPS_INDEX); |
922 | |
923 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
924 "grpc header: \":scheme: https\""); | |
925 } else | |
926 #endif | |
927 { | |
928 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_SCHEME_HTTP_INDEX); | |
929 | |
930 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
931 "grpc header: \":scheme: http\""); | |
932 } | |
933 | |
934 if (r->valid_unparsed_uri) { | |
935 | |
936 if (r->unparsed_uri.len == 1 && r->unparsed_uri.data[0] == '/') { | |
937 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_PATH_ROOT_INDEX); | |
938 | |
939 } else { | |
940 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
941 b->last = ngx_http_v2_write_value(b->last, r->unparsed_uri.data, | |
942 r->unparsed_uri.len, tmp); | |
943 } | |
944 | |
945 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
946 "grpc header: \":path: %V\"", &r->unparsed_uri); | |
947 | |
948 } else if (escape || r->args.len > 0) { | |
949 p = val_tmp; | |
950 | |
951 if (escape) { | |
952 p = (u_char *) ngx_escape_uri(p, r->uri.data, r->uri.len, | |
953 NGX_ESCAPE_URI); | |
954 | |
955 } else { | |
956 p = ngx_copy(p, r->uri.data, r->uri.len); | |
957 } | |
958 | |
959 if (r->args.len > 0) { | |
960 *p++ = '?'; | |
961 p = ngx_copy(p, r->args.data, r->args.len); | |
962 } | |
963 | |
964 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
965 b->last = ngx_http_v2_write_value(b->last, val_tmp, p - val_tmp, tmp); | |
966 | |
967 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
968 "grpc header: \":path: %*s\"", p - val_tmp, val_tmp); | |
969 | |
970 } else { | |
971 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
972 b->last = ngx_http_v2_write_value(b->last, r->uri.data, | |
973 r->uri.len, tmp); | |
974 | |
975 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
976 "grpc header: \":path: %V\"", &r->uri); | |
977 } | |
978 | |
979 if (!glcf->host_set) { | |
980 *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
|
981 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
|
982 ctx->host.len, tmp); |
7233 | 983 |
984 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
|
985 "grpc header: \":authority: %V\"", &ctx->host); |
7233 | 986 } |
987 | |
988 ngx_memzero(&e, sizeof(ngx_http_script_engine_t)); | |
989 | |
990 e.ip = glcf->headers.values->elts; | |
991 e.request = r; | |
992 e.flushed = 1; | |
993 | |
994 le.ip = glcf->headers.lengths->elts; | |
995 | |
996 while (*(uintptr_t *) le.ip) { | |
997 | |
998 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
999 key_len = lcode(&le); | |
1000 | |
1001 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { | |
1002 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
1003 } | |
1004 le.ip += sizeof(uintptr_t); | |
1005 | |
1006 if (val_len == 0) { | |
1007 e.skip = 1; | |
1008 | |
1009 while (*(uintptr_t *) e.ip) { | |
1010 code = *(ngx_http_script_code_pt *) e.ip; | |
1011 code((ngx_http_script_engine_t *) &e); | |
1012 } | |
1013 e.ip += sizeof(uintptr_t); | |
1014 | |
1015 e.skip = 0; | |
1016 | |
1017 continue; | |
1018 } | |
1019 | |
1020 *b->last++ = 0; | |
1021 | |
1022 e.pos = key_tmp; | |
1023 | |
1024 code = *(ngx_http_script_code_pt *) e.ip; | |
1025 code((ngx_http_script_engine_t *) &e); | |
1026 | |
1027 b->last = ngx_http_v2_write_name(b->last, key_tmp, key_len, tmp); | |
1028 | |
1029 e.pos = val_tmp; | |
1030 | |
1031 while (*(uintptr_t *) e.ip) { | |
1032 code = *(ngx_http_script_code_pt *) e.ip; | |
1033 code((ngx_http_script_engine_t *) &e); | |
1034 } | |
1035 e.ip += sizeof(uintptr_t); | |
1036 | |
1037 b->last = ngx_http_v2_write_value(b->last, val_tmp, val_len, tmp); | |
1038 | |
1039 #if (NGX_DEBUG) | |
1040 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
1041 ngx_strlow(key_tmp, key_tmp, key_len); | |
1042 | |
1043 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1044 "grpc header: \"%*s: %*s\"", | |
1045 key_len, key_tmp, val_len, val_tmp); | |
1046 } | |
1047 #endif | |
1048 } | |
1049 | |
1050 if (glcf->upstream.pass_request_headers) { | |
1051 part = &r->headers_in.headers.part; | |
1052 header = part->elts; | |
1053 | |
1054 for (i = 0; /* void */; i++) { | |
1055 | |
1056 if (i >= part->nelts) { | |
1057 if (part->next == NULL) { | |
1058 break; | |
1059 } | |
1060 | |
1061 part = part->next; | |
1062 header = part->elts; | |
1063 i = 0; | |
1064 } | |
1065 | |
1066 if (ngx_hash_find(&glcf->headers.hash, header[i].hash, | |
1067 header[i].lowcase_key, header[i].key.len)) | |
1068 { | |
1069 continue; | |
1070 } | |
1071 | |
1072 *b->last++ = 0; | |
1073 | |
1074 b->last = ngx_http_v2_write_name(b->last, header[i].key.data, | |
1075 header[i].key.len, tmp); | |
1076 | |
1077 b->last = ngx_http_v2_write_value(b->last, header[i].value.data, | |
1078 header[i].value.len, tmp); | |
1079 | |
1080 #if (NGX_DEBUG) | |
1081 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
1082 ngx_strlow(tmp, header[i].key.data, header[i].key.len); | |
1083 | |
1084 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1085 "grpc header: \"%*s: %V\"", | |
1086 header[i].key.len, tmp, &header[i].value); | |
1087 } | |
1088 #endif | |
1089 } | |
1090 } | |
1091 | |
1092 /* update headers frame length */ | |
1093 | |
1094 len = b->last - headers_frame - sizeof(ngx_http_grpc_frame_t); | |
1095 | |
1096 if (len > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
1097 len = NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
1098 next = 1; | |
1099 | |
1100 } else { | |
1101 next = 0; | |
1102 } | |
1103 | |
1104 f = (ngx_http_grpc_frame_t *) headers_frame; | |
1105 | |
1106 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
1107 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
1108 f->length_2 = (u_char) (len & 0xff); | |
1109 | |
1110 /* create additional continuation frames */ | |
1111 | |
1112 p = headers_frame; | |
1113 | |
1114 while (next) { | |
1115 p += sizeof(ngx_http_grpc_frame_t) + NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
1116 len = b->last - p; | |
1117 | |
1118 ngx_memmove(p + sizeof(ngx_http_grpc_frame_t), p, len); | |
1119 b->last += sizeof(ngx_http_grpc_frame_t); | |
1120 | |
1121 if (len > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
1122 len = NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
1123 next = 1; | |
1124 | |
1125 } else { | |
1126 next = 0; | |
1127 } | |
1128 | |
1129 f = (ngx_http_grpc_frame_t *) p; | |
1130 | |
1131 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
1132 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
1133 f->length_2 = (u_char) (len & 0xff); | |
1134 f->type = NGX_HTTP_V2_CONTINUATION_FRAME; | |
1135 f->flags = 0; | |
1136 f->stream_id_0 = 0; | |
1137 f->stream_id_1 = 0; | |
1138 f->stream_id_2 = 0; | |
1139 f->stream_id_3 = 1; | |
1140 } | |
1141 | |
1142 f->flags |= NGX_HTTP_V2_END_HEADERS_FLAG; | |
1143 | |
1144 #if (NGX_DEBUG) | |
1145 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
1146 u_char buf[512]; | |
1147 size_t n, m; | |
1148 | |
1149 n = ngx_min(b->last - b->pos, 256); | |
1150 m = ngx_hex_dump(buf, b->pos, n) - buf; | |
1151 | |
1152 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1153 "grpc header: %*s%s, len: %uz", | |
1154 m, buf, b->last - b->pos > 256 ? "..." : "", | |
1155 b->last - b->pos); | |
1156 } | |
1157 #endif | |
1158 | |
1159 if (r->request_body_no_buffering) { | |
1160 | |
1161 u->request_bufs = cl; | |
1162 | |
1163 } else { | |
1164 | |
1165 body = u->request_bufs; | |
1166 u->request_bufs = cl; | |
1167 | |
1168 if (body == NULL) { | |
1169 f = (ngx_http_grpc_frame_t *) headers_frame; | |
1170 f->flags |= NGX_HTTP_V2_END_STREAM_FLAG; | |
1171 } | |
1172 | |
1173 while (body) { | |
1174 b = ngx_alloc_buf(r->pool); | |
1175 if (b == NULL) { | |
1176 return NGX_ERROR; | |
1177 } | |
1178 | |
1179 ngx_memcpy(b, body->buf, sizeof(ngx_buf_t)); | |
1180 | |
1181 cl->next = ngx_alloc_chain_link(r->pool); | |
1182 if (cl->next == NULL) { | |
1183 return NGX_ERROR; | |
1184 } | |
1185 | |
1186 cl = cl->next; | |
1187 cl->buf = b; | |
1188 | |
1189 body = body->next; | |
1190 } | |
1191 | |
1192 b->last_buf = 1; | |
1193 } | |
1194 | |
1195 u->output.output_filter = ngx_http_grpc_body_output_filter; | |
1196 u->output.filter_ctx = r; | |
1197 | |
1198 b->flush = 1; | |
1199 cl->next = NULL; | |
1200 | |
1201 return NGX_OK; | |
1202 } | |
1203 | |
1204 | |
1205 static ngx_int_t | |
1206 ngx_http_grpc_reinit_request(ngx_http_request_t *r) | |
1207 { | |
1208 ngx_http_grpc_ctx_t *ctx; | |
1209 | |
1210 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); | |
1211 | |
1212 if (ctx == NULL) { | |
1213 return NGX_OK; | |
1214 } | |
1215 | |
1216 ctx->state = 0; | |
1217 ctx->header_sent = 0; | |
1218 ctx->output_closed = 0; | |
7350
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1219 ctx->output_blocked = 0; |
7233 | 1220 ctx->parsing_headers = 0; |
1221 ctx->end_stream = 0; | |
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1222 ctx->done = 0; |
7233 | 1223 ctx->status = 0; |
7892
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
1224 ctx->rst = 0; |
7233 | 1225 ctx->connection = NULL; |
1226 | |
1227 return NGX_OK; | |
1228 } | |
1229 | |
1230 | |
1231 static ngx_int_t | |
1232 ngx_http_grpc_body_output_filter(void *data, ngx_chain_t *in) | |
1233 { | |
1234 ngx_http_request_t *r = data; | |
1235 | |
1236 off_t file_pos; | |
1237 u_char *p, *pos, *start; | |
1238 size_t len, limit; | |
1239 ngx_buf_t *b; | |
1240 ngx_int_t rc; | |
1241 ngx_uint_t next, last; | |
1242 ngx_chain_t *cl, *out, **ll; | |
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1243 ngx_http_upstream_t *u; |
7233 | 1244 ngx_http_grpc_ctx_t *ctx; |
1245 ngx_http_grpc_frame_t *f; | |
1246 | |
1247 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1248 "grpc output filter"); | |
1249 | |
1250 ctx = ngx_http_grpc_get_ctx(r); | |
1251 | |
1252 if (ctx == NULL) { | |
1253 return NGX_ERROR; | |
1254 } | |
1255 | |
1256 if (in) { | |
1257 if (ngx_chain_add_copy(r->pool, &ctx->in, in) != NGX_OK) { | |
1258 return NGX_ERROR; | |
1259 } | |
1260 } | |
1261 | |
1262 out = NULL; | |
1263 ll = &out; | |
1264 | |
1265 if (!ctx->header_sent) { | |
1266 /* first buffer contains headers */ | |
1267 | |
1268 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1269 "grpc output header"); | |
1270 | |
1271 ctx->header_sent = 1; | |
1272 | |
1273 if (ctx->id != 1) { | |
1274 /* | |
1275 * keepalive connection: skip connection preface, | |
1276 * update stream identifiers | |
1277 */ | |
1278 | |
1279 b = ctx->in->buf; | |
1280 b->pos += sizeof(ngx_http_grpc_connection_start) - 1; | |
1281 | |
1282 p = b->pos; | |
1283 | |
1284 while (p < b->last) { | |
1285 f = (ngx_http_grpc_frame_t *) p; | |
1286 p += sizeof(ngx_http_grpc_frame_t); | |
1287 | |
1288 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
1289 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
1290 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
1291 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
1292 | |
1293 p += (f->length_0 << 16) + (f->length_1 << 8) + f->length_2; | |
1294 } | |
1295 } | |
1296 | |
1297 if (ctx->in->buf->last_buf) { | |
1298 ctx->output_closed = 1; | |
1299 } | |
1300 | |
1301 *ll = ctx->in; | |
1302 ll = &ctx->in->next; | |
1303 | |
1304 ctx->in = ctx->in->next; | |
1305 } | |
1306 | |
1307 if (ctx->out) { | |
1308 /* queued control frames */ | |
1309 | |
1310 *ll = ctx->out; | |
1311 | |
1312 for (cl = ctx->out, ll = &cl->next; cl; cl = cl->next) { | |
1313 ll = &cl->next; | |
1314 } | |
1315 | |
1316 ctx->out = NULL; | |
1317 } | |
1318 | |
1319 f = NULL; | |
1320 last = 0; | |
1321 | |
1322 limit = ngx_max(0, ctx->send_window); | |
1323 | |
1324 if (limit > ctx->connection->send_window) { | |
1325 limit = ctx->connection->send_window; | |
1326 } | |
1327 | |
1328 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1329 "grpc output limit: %uz w:%z:%uz", | |
1330 limit, ctx->send_window, ctx->connection->send_window); | |
1331 | |
1332 #if (NGX_SUPPRESS_WARN) | |
1333 file_pos = 0; | |
1334 pos = NULL; | |
1335 cl = NULL; | |
1336 #endif | |
1337 | |
1338 in = ctx->in; | |
1339 | |
1340 while (in && limit > 0) { | |
1341 | |
1342 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, r->connection->log, 0, | |
1343 "grpc output in l:%d f:%d %p, pos %p, size: %z " | |
1344 "file: %O, size: %O", | |
1345 in->buf->last_buf, | |
1346 in->buf->in_file, | |
1347 in->buf->start, in->buf->pos, | |
1348 in->buf->last - in->buf->pos, | |
1349 in->buf->file_pos, | |
1350 in->buf->file_last - in->buf->file_pos); | |
1351 | |
1352 if (ngx_buf_special(in->buf)) { | |
1353 goto next; | |
1354 } | |
1355 | |
1356 if (in->buf->in_file) { | |
1357 file_pos = in->buf->file_pos; | |
1358 | |
1359 } else { | |
1360 pos = in->buf->pos; | |
1361 } | |
1362 | |
1363 next = 0; | |
1364 | |
1365 do { | |
1366 | |
1367 cl = ngx_http_grpc_get_buf(r, ctx); | |
1368 if (cl == NULL) { | |
1369 return NGX_ERROR; | |
1370 } | |
1371 | |
1372 b = cl->buf; | |
1373 | |
1374 f = (ngx_http_grpc_frame_t *) b->last; | |
1375 b->last += sizeof(ngx_http_grpc_frame_t); | |
1376 | |
1377 *ll = cl; | |
1378 ll = &cl->next; | |
1379 | |
1380 cl = ngx_chain_get_free_buf(r->pool, &ctx->free); | |
1381 if (cl == NULL) { | |
1382 return NGX_ERROR; | |
1383 } | |
1384 | |
1385 b = cl->buf; | |
1386 start = b->start; | |
1387 | |
1388 ngx_memcpy(b, in->buf, sizeof(ngx_buf_t)); | |
1389 | |
1390 /* | |
1391 * restore b->start to preserve memory allocated in the buffer, | |
1392 * to reuse it later for headers and control frames | |
1393 */ | |
1394 | |
1395 b->start = start; | |
1396 | |
1397 if (in->buf->in_file) { | |
1398 b->file_pos = file_pos; | |
1399 file_pos += ngx_min(NGX_HTTP_V2_DEFAULT_FRAME_SIZE, limit); | |
1400 | |
1401 if (file_pos >= in->buf->file_last) { | |
1402 file_pos = in->buf->file_last; | |
1403 next = 1; | |
1404 } | |
1405 | |
1406 b->file_last = file_pos; | |
1407 len = (ngx_uint_t) (file_pos - b->file_pos); | |
1408 | |
1409 } else { | |
1410 b->pos = pos; | |
1411 pos += ngx_min(NGX_HTTP_V2_DEFAULT_FRAME_SIZE, limit); | |
1412 | |
1413 if (pos >= in->buf->last) { | |
1414 pos = in->buf->last; | |
1415 next = 1; | |
1416 } | |
1417 | |
1418 b->last = pos; | |
1419 len = (ngx_uint_t) (pos - b->pos); | |
1420 } | |
1421 | |
1422 b->tag = (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter; | |
1423 b->shadow = in->buf; | |
1424 b->last_shadow = next; | |
1425 | |
1426 b->last_buf = 0; | |
1427 b->last_in_chain = 0; | |
1428 | |
1429 *ll = cl; | |
1430 ll = &cl->next; | |
1431 | |
1432 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
1433 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
1434 f->length_2 = (u_char) (len & 0xff); | |
1435 f->type = NGX_HTTP_V2_DATA_FRAME; | |
1436 f->flags = 0; | |
1437 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
1438 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
1439 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
1440 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
1441 | |
1442 limit -= len; | |
1443 ctx->send_window -= len; | |
1444 ctx->connection->send_window -= len; | |
1445 | |
1446 } while (!next && limit > 0); | |
1447 | |
1448 if (!next) { | |
1449 /* | |
1450 * if the buffer wasn't fully sent due to flow control limits, | |
1451 * preserve position for future use | |
1452 */ | |
1453 | |
1454 if (in->buf->in_file) { | |
1455 in->buf->file_pos = file_pos; | |
1456 | |
1457 } else { | |
1458 in->buf->pos = pos; | |
1459 } | |
1460 | |
1461 break; | |
1462 } | |
1463 | |
1464 next: | |
1465 | |
1466 if (in->buf->last_buf) { | |
1467 last = 1; | |
1468 } | |
1469 | |
1470 in = in->next; | |
1471 } | |
1472 | |
1473 ctx->in = in; | |
1474 | |
1475 if (last) { | |
1476 | |
1477 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1478 "grpc output last"); | |
1479 | |
1480 ctx->output_closed = 1; | |
1481 | |
1482 if (f) { | |
1483 f->flags |= NGX_HTTP_V2_END_STREAM_FLAG; | |
1484 | |
1485 } else { | |
1486 cl = ngx_http_grpc_get_buf(r, ctx); | |
1487 if (cl == NULL) { | |
1488 return NGX_ERROR; | |
1489 } | |
1490 | |
1491 b = cl->buf; | |
1492 | |
1493 f = (ngx_http_grpc_frame_t *) b->last; | |
1494 b->last += sizeof(ngx_http_grpc_frame_t); | |
1495 | |
1496 f->length_0 = 0; | |
1497 f->length_1 = 0; | |
1498 f->length_2 = 0; | |
1499 f->type = NGX_HTTP_V2_DATA_FRAME; | |
1500 f->flags = NGX_HTTP_V2_END_STREAM_FLAG; | |
1501 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
1502 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
1503 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
1504 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
1505 | |
1506 *ll = cl; | |
1507 ll = &cl->next; | |
1508 } | |
1509 | |
1510 cl->buf->last_buf = 1; | |
1511 } | |
1512 | |
1513 *ll = NULL; | |
1514 | |
1515 #if (NGX_DEBUG) | |
1516 | |
1517 for (cl = out; cl; cl = cl->next) { | |
1518 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, r->connection->log, 0, | |
1519 "grpc output out l:%d f:%d %p, pos %p, size: %z " | |
1520 "file: %O, size: %O", | |
1521 cl->buf->last_buf, | |
1522 cl->buf->in_file, | |
1523 cl->buf->start, cl->buf->pos, | |
1524 cl->buf->last - cl->buf->pos, | |
1525 cl->buf->file_pos, | |
1526 cl->buf->file_last - cl->buf->file_pos); | |
1527 } | |
1528 | |
1529 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1530 "grpc output limit: %uz w:%z:%uz", | |
1531 limit, ctx->send_window, ctx->connection->send_window); | |
1532 | |
1533 #endif | |
1534 | |
1535 rc = ngx_chain_writer(&r->upstream->writer, out); | |
1536 | |
1537 ngx_chain_update_chains(r->pool, &ctx->free, &ctx->busy, &out, | |
1538 (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter); | |
1539 | |
1540 for (cl = ctx->free; cl; cl = cl->next) { | |
1541 | |
1542 /* mark original buffers as sent */ | |
1543 | |
1544 if (cl->buf->shadow) { | |
1545 if (cl->buf->last_shadow) { | |
1546 b = cl->buf->shadow; | |
1547 b->pos = b->last; | |
1548 } | |
1549 | |
1550 cl->buf->shadow = NULL; | |
1551 } | |
1552 } | |
1553 | |
1554 if (rc == NGX_OK && ctx->in) { | |
1555 rc = NGX_AGAIN; | |
1556 } | |
1557 | |
7350
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1558 if (rc == NGX_AGAIN) { |
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1559 ctx->output_blocked = 1; |
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1560 |
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1561 } else { |
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1562 ctx->output_blocked = 0; |
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1563 } |
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1564 |
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1565 if (ctx->done) { |
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1566 |
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1567 /* |
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1568 * We have already got the response and were sending some additional |
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1569 * control frames. Even if there is still something unsent, stop |
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|
1570 * here anyway. |
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|
1571 */ |
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1572 |
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1573 u = r->upstream; |
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1574 u->length = 0; |
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1575 |
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1576 if (ctx->in == NULL |
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1577 && ctx->out == NULL |
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1578 && ctx->output_closed |
7350
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|
1579 && !ctx->output_blocked |
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1580 && ctx->state == ngx_http_grpc_st_start) |
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1581 { |
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1582 u->keepalive = 1; |
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1583 } |
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1584 |
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1585 ngx_post_event(u->peer.connection->read, &ngx_posted_events); |
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1586 } |
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1587 |
7233 | 1588 return rc; |
1589 } | |
1590 | |
1591 | |
1592 static ngx_int_t | |
1593 ngx_http_grpc_process_header(ngx_http_request_t *r) | |
1594 { | |
1595 ngx_str_t *status_line; | |
1596 ngx_int_t rc, status; | |
1597 ngx_buf_t *b; | |
1598 ngx_table_elt_t *h; | |
1599 ngx_http_upstream_t *u; | |
1600 ngx_http_grpc_ctx_t *ctx; | |
1601 ngx_http_upstream_header_t *hh; | |
1602 ngx_http_upstream_main_conf_t *umcf; | |
1603 | |
1604 u = r->upstream; | |
1605 b = &u->buffer; | |
1606 | |
1607 #if (NGX_DEBUG) | |
1608 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
1609 u_char buf[512]; | |
1610 size_t n, m; | |
1611 | |
1612 n = ngx_min(b->last - b->pos, 256); | |
1613 m = ngx_hex_dump(buf, b->pos, n) - buf; | |
1614 | |
1615 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1616 "grpc response: %*s%s, len: %uz", | |
1617 m, buf, b->last - b->pos > 256 ? "..." : "", | |
1618 b->last - b->pos); | |
1619 } | |
1620 #endif | |
1621 | |
1622 ctx = ngx_http_grpc_get_ctx(r); | |
1623 | |
1624 if (ctx == NULL) { | |
1625 return NGX_ERROR; | |
1626 } | |
1627 | |
1628 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module); | |
1629 | |
1630 for ( ;; ) { | |
1631 | |
1632 if (ctx->state < ngx_http_grpc_st_payload) { | |
1633 | |
1634 rc = ngx_http_grpc_parse_frame(r, ctx, b); | |
1635 | |
1636 if (rc == NGX_AGAIN) { | |
1637 | |
1638 /* | |
1639 * there can be a lot of window update frames, | |
1640 * so we reset buffer if it is empty and we haven't | |
1641 * started parsing headers yet | |
1642 */ | |
1643 | |
1644 if (!ctx->parsing_headers) { | |
1645 b->pos = b->start; | |
1646 b->last = b->pos; | |
1647 } | |
1648 | |
1649 return NGX_AGAIN; | |
1650 } | |
1651 | |
1652 if (rc == NGX_ERROR) { | |
1653 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1654 } | |
1655 | |
1656 /* | |
1657 * RFC 7540 says that implementations MUST discard frames | |
1658 * that have unknown or unsupported types. However, extension | |
1659 * frames that appear in the middle of a header block are | |
1660 * not permitted. Also, for obvious reasons CONTINUATION frames | |
1661 * cannot appear before headers, and DATA frames are not expected | |
1662 * to appear before all headers are parsed. | |
1663 */ | |
1664 | |
1665 if (ctx->type == NGX_HTTP_V2_DATA_FRAME | |
1666 || (ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME | |
1667 && !ctx->parsing_headers) | |
1668 || (ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME | |
1669 && ctx->parsing_headers)) | |
1670 { | |
1671 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1672 "upstream sent unexpected http2 frame: %d", | |
1673 ctx->type); | |
1674 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1675 } | |
1676 | |
1677 if (ctx->stream_id && ctx->stream_id != ctx->id) { | |
1678 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1679 "upstream sent frame for unknown stream %ui", | |
1680 ctx->stream_id); | |
1681 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1682 } | |
1683 } | |
1684 | |
1685 /* frame payload */ | |
1686 | |
1687 if (ctx->type == NGX_HTTP_V2_RST_STREAM_FRAME) { | |
1688 | |
1689 rc = ngx_http_grpc_parse_rst_stream(r, ctx, b); | |
1690 | |
1691 if (rc == NGX_AGAIN) { | |
1692 return NGX_AGAIN; | |
1693 } | |
1694 | |
1695 if (rc == NGX_ERROR) { | |
1696 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1697 } | |
1698 | |
1699 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1700 "upstream rejected request with error %ui", | |
1701 ctx->error); | |
1702 | |
1703 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1704 } | |
1705 | |
1706 if (ctx->type == NGX_HTTP_V2_GOAWAY_FRAME) { | |
1707 | |
1708 rc = ngx_http_grpc_parse_goaway(r, ctx, b); | |
1709 | |
1710 if (rc == NGX_AGAIN) { | |
1711 return NGX_AGAIN; | |
1712 } | |
1713 | |
1714 if (rc == NGX_ERROR) { | |
1715 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1716 } | |
1717 | |
1718 /* | |
1719 * If stream_id is lower than one we use, our | |
1720 * request won't be processed and needs to be retried. | |
1721 * If stream_id is greater or equal to the one we use, | |
1722 * we can continue normally (except we can't use this | |
1723 * connection for additional requests). If there is | |
1724 * a real error, the connection will be closed. | |
1725 */ | |
1726 | |
1727 if (ctx->stream_id < ctx->id) { | |
1728 | |
1729 /* TODO: we can retry non-idempotent requests */ | |
1730 | |
1731 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1732 "upstream sent goaway with error %ui", | |
1733 ctx->error); | |
1734 | |
1735 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1736 } | |
1737 | |
1738 continue; | |
1739 } | |
1740 | |
1741 if (ctx->type == NGX_HTTP_V2_WINDOW_UPDATE_FRAME) { | |
1742 | |
1743 rc = ngx_http_grpc_parse_window_update(r, ctx, b); | |
1744 | |
1745 if (rc == NGX_AGAIN) { | |
1746 return NGX_AGAIN; | |
1747 } | |
1748 | |
1749 if (rc == NGX_ERROR) { | |
1750 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1751 } | |
1752 | |
1753 if (ctx->in) { | |
1754 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
1755 } | |
1756 | |
1757 continue; | |
1758 } | |
1759 | |
1760 if (ctx->type == NGX_HTTP_V2_SETTINGS_FRAME) { | |
1761 | |
1762 rc = ngx_http_grpc_parse_settings(r, ctx, b); | |
1763 | |
1764 if (rc == NGX_AGAIN) { | |
1765 return NGX_AGAIN; | |
1766 } | |
1767 | |
1768 if (rc == NGX_ERROR) { | |
1769 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1770 } | |
1771 | |
1772 if (ctx->in) { | |
1773 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
1774 } | |
1775 | |
1776 continue; | |
1777 } | |
1778 | |
1779 if (ctx->type == NGX_HTTP_V2_PING_FRAME) { | |
1780 | |
1781 rc = ngx_http_grpc_parse_ping(r, ctx, b); | |
1782 | |
1783 if (rc == NGX_AGAIN) { | |
1784 return NGX_AGAIN; | |
1785 } | |
1786 | |
1787 if (rc == NGX_ERROR) { | |
1788 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1789 } | |
1790 | |
1791 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
1792 continue; | |
1793 } | |
1794 | |
1795 if (ctx->type == NGX_HTTP_V2_PUSH_PROMISE_FRAME) { | |
1796 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1797 "upstream sent unexpected push promise frame"); | |
1798 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1799 } | |
1800 | |
1801 if (ctx->type != NGX_HTTP_V2_HEADERS_FRAME | |
1802 && ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME) | |
1803 { | |
1804 /* priority, unknown frames */ | |
1805 | |
1806 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
1807 ctx->rest -= b->last - b->pos; | |
1808 b->pos = b->last; | |
1809 return NGX_AGAIN; | |
1810 } | |
1811 | |
1812 b->pos += ctx->rest; | |
1813 ctx->rest = 0; | |
1814 ctx->state = ngx_http_grpc_st_start; | |
1815 | |
1816 continue; | |
1817 } | |
1818 | |
1819 /* headers */ | |
1820 | |
1821 for ( ;; ) { | |
1822 | |
1823 rc = ngx_http_grpc_parse_header(r, ctx, b); | |
1824 | |
1825 if (rc == NGX_AGAIN) { | |
1826 break; | |
1827 } | |
1828 | |
1829 if (rc == NGX_OK) { | |
1830 | |
1831 /* a header line has been parsed successfully */ | |
1832 | |
1833 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1834 "grpc header: \"%V: %V\"", | |
1835 &ctx->name, &ctx->value); | |
1836 | |
1837 if (ctx->name.len && ctx->name.data[0] == ':') { | |
1838 | |
1839 if (ctx->name.len != sizeof(":status") - 1 | |
1840 || ngx_strncmp(ctx->name.data, ":status", | |
1841 sizeof(":status") - 1) | |
1842 != 0) | |
1843 { | |
1844 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1845 "upstream sent invalid header \"%V: %V\"", | |
1846 &ctx->name, &ctx->value); | |
1847 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1848 } | |
1849 | |
1850 if (ctx->status) { | |
1851 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1852 "upstream sent duplicate :status header"); | |
1853 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1854 } | |
1855 | |
1856 status_line = &ctx->value; | |
1857 | |
1858 if (status_line->len != 3) { | |
1859 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1860 "upstream sent invalid :status \"%V\"", | |
1861 status_line); | |
1862 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1863 } | |
1864 | |
1865 status = ngx_atoi(status_line->data, 3); | |
1866 | |
1867 if (status == NGX_ERROR) { | |
1868 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1869 "upstream sent invalid :status \"%V\"", | |
1870 status_line); | |
1871 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1872 } | |
1873 | |
1874 if (status < NGX_HTTP_OK) { | |
1875 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1876 "upstream sent unexpected :status \"%V\"", | |
1877 status_line); | |
1878 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1879 } | |
1880 | |
1881 u->headers_in.status_n = status; | |
1882 | |
1883 if (u->state && u->state->status == 0) { | |
1884 u->state->status = status; | |
1885 } | |
1886 | |
1887 ctx->status = 1; | |
1888 | |
1889 continue; | |
1890 | |
1891 } else if (!ctx->status) { | |
1892 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1893 "upstream sent no :status header"); | |
1894 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1895 } | |
1896 | |
1897 h = ngx_list_push(&u->headers_in.headers); | |
1898 if (h == NULL) { | |
1899 return NGX_ERROR; | |
1900 } | |
1901 | |
1902 h->key = ctx->name; | |
1903 h->value = ctx->value; | |
1904 h->lowcase_key = h->key.data; | |
1905 h->hash = ngx_hash_key(h->key.data, h->key.len); | |
1906 | |
1907 hh = ngx_hash_find(&umcf->headers_in_hash, h->hash, | |
1908 h->lowcase_key, h->key.len); | |
1909 | |
1910 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) { | |
1911 return NGX_ERROR; | |
1912 } | |
1913 | |
1914 continue; | |
1915 } | |
1916 | |
1917 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { | |
1918 | |
1919 /* a whole header has been parsed successfully */ | |
1920 | |
1921 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1922 "grpc header done"); | |
1923 | |
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1924 if (ctx->end_stream) { |
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1925 u->headers_in.content_length_n = 0; |
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1926 |
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1927 if (ctx->in == NULL |
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1928 && ctx->out == NULL |
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1929 && ctx->output_closed |
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1930 && !ctx->output_blocked |
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1931 && b->last == b->pos) |
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1932 { |
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1933 u->keepalive = 1; |
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1934 } |
7233 | 1935 } |
1936 | |
1937 return NGX_OK; | |
1938 } | |
1939 | |
1940 /* there was error while a header line parsing */ | |
1941 | |
1942 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1943 "upstream sent invalid header"); | |
1944 | |
1945 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1946 } | |
1947 | |
1948 /* rc == NGX_AGAIN */ | |
1949 | |
1950 if (ctx->rest == 0) { | |
1951 ctx->state = ngx_http_grpc_st_start; | |
1952 continue; | |
1953 } | |
1954 | |
1955 return NGX_AGAIN; | |
1956 } | |
1957 } | |
1958 | |
1959 | |
1960 static ngx_int_t | |
1961 ngx_http_grpc_filter_init(void *data) | |
1962 { | |
1963 ngx_http_grpc_ctx_t *ctx = data; | |
1964 | |
1965 ngx_http_request_t *r; | |
1966 ngx_http_upstream_t *u; | |
1967 | |
1968 r = ctx->request; | |
1969 u = r->upstream; | |
1970 | |
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1971 if (u->headers_in.status_n == NGX_HTTP_NO_CONTENT |
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1972 || u->headers_in.status_n == NGX_HTTP_NOT_MODIFIED |
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1973 || r->method == NGX_HTTP_HEAD) |
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1974 { |
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1975 ctx->length = 0; |
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1976 |
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|
1977 } else { |
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1978 ctx->length = u->headers_in.content_length_n; |
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1979 } |
7233 | 1980 |
1981 if (ctx->end_stream) { | |
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1982 |
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1983 if (ctx->length > 0) { |
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1984 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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1985 "upstream prematurely closed stream"); |
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1986 return NGX_ERROR; |
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|
1987 } |
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|
1988 |
7233 | 1989 u->length = 0; |
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|
1990 |
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|
1991 } else { |
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1992 u->length = 1; |
7233 | 1993 } |
1994 | |
1995 return NGX_OK; | |
1996 } | |
1997 | |
1998 | |
1999 static ngx_int_t | |
2000 ngx_http_grpc_filter(void *data, ssize_t bytes) | |
2001 { | |
2002 ngx_http_grpc_ctx_t *ctx = data; | |
2003 | |
2004 ngx_int_t rc; | |
2005 ngx_buf_t *b, *buf; | |
2006 ngx_chain_t *cl, **ll; | |
2007 ngx_table_elt_t *h; | |
2008 ngx_http_request_t *r; | |
2009 ngx_http_upstream_t *u; | |
2010 | |
2011 r = ctx->request; | |
2012 u = r->upstream; | |
2013 b = &u->buffer; | |
2014 | |
2015 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2016 "grpc filter bytes:%z", bytes); | |
2017 | |
2018 b->pos = b->last; | |
2019 b->last += bytes; | |
2020 | |
2021 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { | |
2022 ll = &cl->next; | |
2023 } | |
2024 | |
2025 for ( ;; ) { | |
2026 | |
2027 if (ctx->state < ngx_http_grpc_st_payload) { | |
2028 | |
2029 rc = ngx_http_grpc_parse_frame(r, ctx, b); | |
2030 | |
2031 if (rc == NGX_AGAIN) { | |
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2032 |
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2033 if (ctx->done) { |
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2034 |
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2035 if (ctx->length > 0) { |
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2036 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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2037 "upstream prematurely closed stream"); |
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2038 return NGX_ERROR; |
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|
2039 } |
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2040 |
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2041 /* |
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2042 * We have finished parsing the response and the |
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2043 * remaining control frames. If there are unsent |
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2044 * control frames, post a write event to send them. |
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2045 */ |
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2046 |
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2047 if (ctx->out) { |
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2048 ngx_post_event(u->peer.connection->write, |
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2049 &ngx_posted_events); |
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2050 return NGX_AGAIN; |
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2051 } |
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2052 |
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2053 u->length = 0; |
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|
2054 |
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2055 if (ctx->in == NULL |
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|
2056 && ctx->output_closed |
7350
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2057 && !ctx->output_blocked |
7349
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2058 && ctx->state == ngx_http_grpc_st_start) |
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|
2059 { |
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2060 u->keepalive = 1; |
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2061 } |
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2062 |
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2063 break; |
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|
2064 } |
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2065 |
7233 | 2066 return NGX_AGAIN; |
2067 } | |
2068 | |
2069 if (rc == NGX_ERROR) { | |
2070 return NGX_ERROR; | |
2071 } | |
2072 | |
2073 if ((ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME | |
2074 && !ctx->parsing_headers) | |
2075 || (ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME | |
2076 && ctx->parsing_headers)) | |
2077 { | |
2078 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2079 "upstream sent unexpected http2 frame: %d", | |
2080 ctx->type); | |
2081 return NGX_ERROR; | |
2082 } | |
2083 | |
2084 if (ctx->type == NGX_HTTP_V2_DATA_FRAME) { | |
2085 | |
2086 if (ctx->stream_id != ctx->id) { | |
2087 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2088 "upstream sent data frame " | |
2089 "for unknown stream %ui", | |
2090 ctx->stream_id); | |
2091 return NGX_ERROR; | |
2092 } | |
2093 | |
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2094 if (ctx->length != -1) { |
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2095 if ((off_t) ctx->rest > ctx->length) { |
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2096 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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2097 "upstream sent response body larger " |
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2098 "than indicated content length"); |
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2099 return NGX_ERROR; |
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2100 } |
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2101 |
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2102 ctx->length -= ctx->rest; |
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2103 } |
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2104 |
7233 | 2105 if (ctx->rest > ctx->recv_window) { |
2106 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2107 "upstream violated stream flow control, " | |
2108 "received %uz data frame with window %uz", | |
2109 ctx->rest, ctx->recv_window); | |
2110 return NGX_ERROR; | |
2111 } | |
2112 | |
2113 if (ctx->rest > ctx->connection->recv_window) { | |
2114 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2115 "upstream violated connection flow control, " | |
2116 "received %uz data frame with window %uz", | |
2117 ctx->rest, ctx->connection->recv_window); | |
2118 return NGX_ERROR; | |
2119 } | |
2120 | |
2121 ctx->recv_window -= ctx->rest; | |
2122 ctx->connection->recv_window -= ctx->rest; | |
2123 | |
2124 if (ctx->connection->recv_window < NGX_HTTP_V2_MAX_WINDOW / 4 | |
2125 || ctx->recv_window < NGX_HTTP_V2_MAX_WINDOW / 4) | |
2126 { | |
2127 if (ngx_http_grpc_send_window_update(r, ctx) != NGX_OK) { | |
2128 return NGX_ERROR; | |
2129 } | |
2130 | |
2131 ngx_post_event(u->peer.connection->write, | |
2132 &ngx_posted_events); | |
2133 } | |
2134 } | |
2135 | |
2136 if (ctx->stream_id && ctx->stream_id != ctx->id) { | |
2137 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2138 "upstream sent frame for unknown stream %ui", | |
2139 ctx->stream_id); | |
2140 return NGX_ERROR; | |
2141 } | |
2142 | |
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|
2143 if (ctx->stream_id && ctx->done |
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2144 && ctx->type != NGX_HTTP_V2_RST_STREAM_FRAME |
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2145 && ctx->type != NGX_HTTP_V2_WINDOW_UPDATE_FRAME) |
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2146 { |
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2147 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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2148 "upstream sent frame for closed stream %ui", |
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Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2149 ctx->stream_id); |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2150 return NGX_ERROR; |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2151 } |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2152 |
7233 | 2153 ctx->padding = 0; |
2154 } | |
2155 | |
2156 if (ctx->state == ngx_http_grpc_st_padding) { | |
2157 | |
2158 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
2159 ctx->rest -= b->last - b->pos; | |
2160 b->pos = b->last; | |
2161 return NGX_AGAIN; | |
2162 } | |
2163 | |
2164 b->pos += ctx->rest; | |
2165 ctx->rest = 0; | |
2166 ctx->state = ngx_http_grpc_st_start; | |
2167 | |
2168 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2169 ctx->done = 1; |
7233 | 2170 } |
2171 | |
2172 continue; | |
2173 } | |
2174 | |
2175 /* frame payload */ | |
2176 | |
2177 if (ctx->type == NGX_HTTP_V2_RST_STREAM_FRAME) { | |
2178 | |
2179 rc = ngx_http_grpc_parse_rst_stream(r, ctx, b); | |
2180 | |
2181 if (rc == NGX_AGAIN) { | |
2182 return NGX_AGAIN; | |
2183 } | |
2184 | |
2185 if (rc == NGX_ERROR) { | |
2186 return NGX_ERROR; | |
2187 } | |
2188 | |
7892
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2189 if (ctx->error || !ctx->done) { |
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2190 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
|
2191 "upstream rejected request with error %ui", |
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2192 ctx->error); |
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2193 return NGX_ERROR; |
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2194 } |
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2195 |
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2196 if (ctx->rst) { |
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2197 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
|
2198 "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
|
2199 ctx->stream_id); |
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2200 return NGX_ERROR; |
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2201 } |
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2202 |
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2203 ctx->rst = 1; |
7233 | 2204 } |
2205 | |
2206 if (ctx->type == NGX_HTTP_V2_GOAWAY_FRAME) { | |
2207 | |
2208 rc = ngx_http_grpc_parse_goaway(r, ctx, b); | |
2209 | |
2210 if (rc == NGX_AGAIN) { | |
2211 return NGX_AGAIN; | |
2212 } | |
2213 | |
2214 if (rc == NGX_ERROR) { | |
2215 return NGX_ERROR; | |
2216 } | |
2217 | |
2218 /* | |
2219 * If stream_id is lower than one we use, our | |
2220 * request won't be processed and needs to be retried. | |
2221 * If stream_id is greater or equal to the one we use, | |
2222 * we can continue normally (except we can't use this | |
2223 * connection for additional requests). If there is | |
2224 * a real error, the connection will be closed. | |
2225 */ | |
2226 | |
2227 if (ctx->stream_id < ctx->id) { | |
2228 | |
2229 /* TODO: we can retry non-idempotent requests */ | |
2230 | |
2231 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2232 "upstream sent goaway with error %ui", | |
2233 ctx->error); | |
2234 | |
2235 return NGX_ERROR; | |
2236 } | |
2237 | |
2238 continue; | |
2239 } | |
2240 | |
2241 if (ctx->type == NGX_HTTP_V2_WINDOW_UPDATE_FRAME) { | |
2242 | |
2243 rc = ngx_http_grpc_parse_window_update(r, ctx, b); | |
2244 | |
2245 if (rc == NGX_AGAIN) { | |
2246 return NGX_AGAIN; | |
2247 } | |
2248 | |
2249 if (rc == NGX_ERROR) { | |
2250 return NGX_ERROR; | |
2251 } | |
2252 | |
2253 if (ctx->in) { | |
2254 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
2255 } | |
2256 | |
2257 continue; | |
2258 } | |
2259 | |
2260 if (ctx->type == NGX_HTTP_V2_SETTINGS_FRAME) { | |
2261 | |
2262 rc = ngx_http_grpc_parse_settings(r, ctx, b); | |
2263 | |
2264 if (rc == NGX_AGAIN) { | |
2265 return NGX_AGAIN; | |
2266 } | |
2267 | |
2268 if (rc == NGX_ERROR) { | |
2269 return NGX_ERROR; | |
2270 } | |
2271 | |
2272 if (ctx->in) { | |
2273 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
2274 } | |
2275 | |
2276 continue; | |
2277 } | |
2278 | |
2279 if (ctx->type == NGX_HTTP_V2_PING_FRAME) { | |
2280 | |
2281 rc = ngx_http_grpc_parse_ping(r, ctx, b); | |
2282 | |
2283 if (rc == NGX_AGAIN) { | |
2284 return NGX_AGAIN; | |
2285 } | |
2286 | |
2287 if (rc == NGX_ERROR) { | |
2288 return NGX_ERROR; | |
2289 } | |
2290 | |
2291 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
2292 continue; | |
2293 } | |
2294 | |
2295 if (ctx->type == NGX_HTTP_V2_PUSH_PROMISE_FRAME) { | |
2296 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2297 "upstream sent unexpected push promise frame"); | |
2298 return NGX_ERROR; | |
2299 } | |
2300 | |
2301 if (ctx->type == NGX_HTTP_V2_HEADERS_FRAME | |
2302 || ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME) | |
2303 { | |
2304 for ( ;; ) { | |
2305 | |
2306 rc = ngx_http_grpc_parse_header(r, ctx, b); | |
2307 | |
2308 if (rc == NGX_AGAIN) { | |
2309 break; | |
2310 } | |
2311 | |
2312 if (rc == NGX_OK) { | |
2313 | |
2314 /* a header line has been parsed successfully */ | |
2315 | |
2316 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2317 "grpc trailer: \"%V: %V\"", | |
2318 &ctx->name, &ctx->value); | |
2319 | |
2320 if (ctx->name.len && ctx->name.data[0] == ':') { | |
2321 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2322 "upstream sent invalid " | |
2323 "trailer \"%V: %V\"", | |
2324 &ctx->name, &ctx->value); | |
2325 return NGX_ERROR; | |
2326 } | |
2327 | |
2328 h = ngx_list_push(&u->headers_in.trailers); | |
2329 if (h == NULL) { | |
2330 return NGX_ERROR; | |
2331 } | |
2332 | |
2333 h->key = ctx->name; | |
2334 h->value = ctx->value; | |
2335 h->lowcase_key = h->key.data; | |
2336 h->hash = ngx_hash_key(h->key.data, h->key.len); | |
2337 | |
2338 continue; | |
2339 } | |
2340 | |
2341 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { | |
2342 | |
2343 /* a whole header has been parsed successfully */ | |
2344 | |
2345 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2346 "grpc trailer done"); | |
2347 | |
2348 if (ctx->end_stream) { | |
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2349 ctx->done = 1; |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2350 break; |
7233 | 2351 } |
2352 | |
2353 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2354 "upstream sent trailer without " | |
2355 "end stream flag"); | |
2356 return NGX_ERROR; | |
2357 } | |
2358 | |
2359 /* there was error while a header line parsing */ | |
2360 | |
2361 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2362 "upstream sent invalid trailer"); | |
2363 | |
2364 return NGX_ERROR; | |
2365 } | |
2366 | |
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2367 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2368 continue; |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2369 } |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2370 |
7233 | 2371 /* rc == NGX_AGAIN */ |
2372 | |
2373 if (ctx->rest == 0) { | |
2374 ctx->state = ngx_http_grpc_st_start; | |
2375 continue; | |
2376 } | |
2377 | |
2378 return NGX_AGAIN; | |
2379 } | |
2380 | |
2381 if (ctx->type != NGX_HTTP_V2_DATA_FRAME) { | |
2382 | |
2383 /* priority, unknown frames */ | |
2384 | |
2385 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
2386 ctx->rest -= b->last - b->pos; | |
2387 b->pos = b->last; | |
2388 return NGX_AGAIN; | |
2389 } | |
2390 | |
2391 b->pos += ctx->rest; | |
2392 ctx->rest = 0; | |
2393 ctx->state = ngx_http_grpc_st_start; | |
2394 | |
2395 continue; | |
2396 } | |
2397 | |
2398 /* | |
2399 * data frame: | |
2400 * | |
2401 * +---------------+ | |
2402 * |Pad Length? (8)| | |
2403 * +---------------+-----------------------------------------------+ | |
2404 * | Data (*) ... | |
2405 * +---------------------------------------------------------------+ | |
2406 * | Padding (*) ... | |
2407 * +---------------------------------------------------------------+ | |
2408 */ | |
2409 | |
2410 if (ctx->flags & NGX_HTTP_V2_PADDED_FLAG) { | |
2411 | |
2412 if (ctx->rest == 0) { | |
2413 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2414 "upstream sent too short http2 frame"); | |
2415 return NGX_ERROR; | |
2416 } | |
2417 | |
2418 if (b->pos == b->last) { | |
2419 return NGX_AGAIN; | |
2420 } | |
2421 | |
2422 ctx->flags &= ~NGX_HTTP_V2_PADDED_FLAG; | |
2423 ctx->padding = *b->pos++; | |
2424 ctx->rest -= 1; | |
2425 | |
2426 if (ctx->padding > ctx->rest) { | |
2427 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2428 "upstream sent http2 frame with too long " | |
2429 "padding: %d in frame %uz", | |
2430 ctx->padding, ctx->rest); | |
2431 return NGX_ERROR; | |
2432 } | |
2433 | |
2434 continue; | |
2435 } | |
2436 | |
2437 if (ctx->rest == ctx->padding) { | |
2438 goto done; | |
2439 } | |
2440 | |
2441 if (b->pos == b->last) { | |
2442 return NGX_AGAIN; | |
2443 } | |
2444 | |
2445 cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs); | |
2446 if (cl == NULL) { | |
2447 return NGX_ERROR; | |
2448 } | |
2449 | |
2450 *ll = cl; | |
2451 ll = &cl->next; | |
2452 | |
2453 buf = cl->buf; | |
2454 | |
2455 buf->flush = 1; | |
2456 buf->memory = 1; | |
2457 | |
2458 buf->pos = b->pos; | |
2459 buf->tag = u->output.tag; | |
2460 | |
2461 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2462 "grpc output buf %p", buf->pos); | |
2463 | |
2464 if (b->last - b->pos < (ssize_t) ctx->rest - ctx->padding) { | |
2465 | |
2466 ctx->rest -= b->last - b->pos; | |
2467 b->pos = b->last; | |
2468 buf->last = b->pos; | |
2469 | |
2470 return NGX_AGAIN; | |
2471 } | |
2472 | |
2473 b->pos += ctx->rest - ctx->padding; | |
2474 buf->last = b->pos; | |
2475 ctx->rest = ctx->padding; | |
2476 | |
2477 done: | |
2478 | |
2479 if (ctx->padding) { | |
2480 ctx->state = ngx_http_grpc_st_padding; | |
2481 continue; | |
2482 } | |
2483 | |
2484 ctx->state = ngx_http_grpc_st_start; | |
2485 | |
2486 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2487 ctx->done = 1; |
7233 | 2488 } |
2489 } | |
2490 | |
2491 return NGX_OK; | |
2492 } | |
2493 | |
2494 | |
2495 static ngx_int_t | |
2496 ngx_http_grpc_parse_frame(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
2497 ngx_buf_t *b) | |
2498 { | |
2499 u_char ch, *p; | |
2500 ngx_http_grpc_state_e state; | |
2501 | |
2502 state = ctx->state; | |
2503 | |
2504 for (p = b->pos; p < b->last; p++) { | |
2505 ch = *p; | |
2506 | |
2507 #if 0 | |
2508 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2509 "grpc frame byte: %02Xd, s:%d", ch, state); | |
2510 #endif | |
2511 | |
2512 switch (state) { | |
2513 | |
2514 case ngx_http_grpc_st_start: | |
2515 ctx->rest = ch << 16; | |
2516 state = ngx_http_grpc_st_length_2; | |
2517 break; | |
2518 | |
2519 case ngx_http_grpc_st_length_2: | |
2520 ctx->rest |= ch << 8; | |
2521 state = ngx_http_grpc_st_length_3; | |
2522 break; | |
2523 | |
2524 case ngx_http_grpc_st_length_3: | |
2525 ctx->rest |= ch; | |
2526 | |
2527 if (ctx->rest > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
2528 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2529 "upstream sent too large http2 frame: %uz", | |
2530 ctx->rest); | |
2531 return NGX_ERROR; | |
2532 } | |
2533 | |
2534 state = ngx_http_grpc_st_type; | |
2535 break; | |
2536 | |
2537 case ngx_http_grpc_st_type: | |
2538 ctx->type = ch; | |
2539 state = ngx_http_grpc_st_flags; | |
2540 break; | |
2541 | |
2542 case ngx_http_grpc_st_flags: | |
2543 ctx->flags = ch; | |
2544 state = ngx_http_grpc_st_stream_id; | |
2545 break; | |
2546 | |
2547 case ngx_http_grpc_st_stream_id: | |
2548 ctx->stream_id = (ch & 0x7f) << 24; | |
2549 state = ngx_http_grpc_st_stream_id_2; | |
2550 break; | |
2551 | |
2552 case ngx_http_grpc_st_stream_id_2: | |
2553 ctx->stream_id |= ch << 16; | |
2554 state = ngx_http_grpc_st_stream_id_3; | |
2555 break; | |
2556 | |
2557 case ngx_http_grpc_st_stream_id_3: | |
2558 ctx->stream_id |= ch << 8; | |
2559 state = ngx_http_grpc_st_stream_id_4; | |
2560 break; | |
2561 | |
2562 case ngx_http_grpc_st_stream_id_4: | |
2563 ctx->stream_id |= ch; | |
2564 | |
2565 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2566 "grpc frame: %d, len: %uz, f:%d, i:%ui", | |
2567 ctx->type, ctx->rest, ctx->flags, ctx->stream_id); | |
2568 | |
2569 b->pos = p + 1; | |
2570 | |
2571 ctx->state = ngx_http_grpc_st_payload; | |
2572 ctx->frame_state = 0; | |
2573 | |
2574 return NGX_OK; | |
2575 | |
2576 /* suppress warning */ | |
2577 case ngx_http_grpc_st_payload: | |
2578 case ngx_http_grpc_st_padding: | |
2579 break; | |
2580 } | |
2581 } | |
2582 | |
2583 b->pos = p; | |
2584 ctx->state = state; | |
2585 | |
2586 return NGX_AGAIN; | |
2587 } | |
2588 | |
2589 | |
2590 static ngx_int_t | |
2591 ngx_http_grpc_parse_header(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
2592 ngx_buf_t *b) | |
2593 { | |
2594 u_char ch, *p, *last; | |
2595 size_t min; | |
2596 ngx_int_t rc; | |
2597 enum { | |
2598 sw_start = 0, | |
2599 sw_padding_length, | |
2600 sw_dependency, | |
2601 sw_dependency_2, | |
2602 sw_dependency_3, | |
2603 sw_dependency_4, | |
2604 sw_weight, | |
2605 sw_fragment, | |
2606 sw_padding | |
2607 } state; | |
2608 | |
2609 state = ctx->frame_state; | |
2610 | |
2611 if (state == sw_start) { | |
2612 | |
2613 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2614 "grpc parse header: start"); | |
2615 | |
2616 if (ctx->type == NGX_HTTP_V2_HEADERS_FRAME) { | |
2617 ctx->parsing_headers = 1; | |
2618 ctx->fragment_state = 0; | |
2619 | |
2620 min = (ctx->flags & NGX_HTTP_V2_PADDED_FLAG ? 1 : 0) | |
2621 + (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG ? 5 : 0); | |
2622 | |
2623 if (ctx->rest < min) { | |
2624 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2625 "upstream sent headers frame " | |
2626 "with invalid length: %uz", | |
2627 ctx->rest); | |
2628 return NGX_ERROR; | |
2629 } | |
2630 | |
2631 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
2632 ctx->end_stream = 1; | |
2633 } | |
2634 | |
2635 if (ctx->flags & NGX_HTTP_V2_PADDED_FLAG) { | |
2636 state = sw_padding_length; | |
2637 | |
2638 } else if (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG) { | |
2639 state = sw_dependency; | |
2640 | |
2641 } else { | |
2642 state = sw_fragment; | |
2643 } | |
2644 | |
2645 } else if (ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME) { | |
2646 state = sw_fragment; | |
2647 } | |
2648 | |
2649 ctx->padding = 0; | |
7242
25a4353633a0
gRPC: fixed missing state save in frame header parsing.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7240
diff
changeset
|
2650 ctx->frame_state = state; |
7233 | 2651 } |
2652 | |
2653 if (state < sw_fragment) { | |
2654 | |
2655 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
2656 last = b->last; | |
2657 | |
2658 } else { | |
2659 last = b->pos + ctx->rest; | |
2660 } | |
2661 | |
2662 for (p = b->pos; p < last; p++) { | |
2663 ch = *p; | |
2664 | |
2665 #if 0 | |
2666 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2667 "grpc header byte: %02Xd s:%d", ch, state); | |
2668 #endif | |
2669 | |
2670 /* | |
2671 * headers frame: | |
2672 * | |
2673 * +---------------+ | |
2674 * |Pad Length? (8)| | |
2675 * +-+-------------+----------------------------------------------+ | |
2676 * |E| Stream Dependency? (31) | | |
2677 * +-+-------------+----------------------------------------------+ | |
2678 * | Weight? (8) | | |
2679 * +-+-------------+----------------------------------------------+ | |
2680 * | Header Block Fragment (*) ... | |
2681 * +--------------------------------------------------------------+ | |
2682 * | Padding (*) ... | |
2683 * +--------------------------------------------------------------+ | |
2684 */ | |
2685 | |
2686 switch (state) { | |
2687 | |
2688 case sw_padding_length: | |
2689 | |
2690 ctx->padding = ch; | |
2691 | |
2692 if (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG) { | |
2693 state = sw_dependency; | |
2694 break; | |
2695 } | |
2696 | |
2697 goto fragment; | |
2698 | |
2699 case sw_dependency: | |
2700 state = sw_dependency_2; | |
2701 break; | |
2702 | |
2703 case sw_dependency_2: | |
2704 state = sw_dependency_3; | |
2705 break; | |
2706 | |
2707 case sw_dependency_3: | |
2708 state = sw_dependency_4; | |
2709 break; | |
2710 | |
2711 case sw_dependency_4: | |
2712 state = sw_weight; | |
2713 break; | |
2714 | |
2715 case sw_weight: | |
2716 goto fragment; | |
2717 | |
2718 /* suppress warning */ | |
2719 case sw_start: | |
2720 case sw_fragment: | |
2721 case sw_padding: | |
2722 break; | |
2723 } | |
2724 } | |
2725 | |
2726 ctx->rest -= p - b->pos; | |
2727 b->pos = p; | |
2728 | |
2729 ctx->frame_state = state; | |
2730 return NGX_AGAIN; | |
2731 | |
2732 fragment: | |
2733 | |
2734 p++; | |
2735 ctx->rest -= p - b->pos; | |
2736 b->pos = p; | |
2737 | |
2738 if (ctx->padding > ctx->rest) { | |
2739 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2740 "upstream sent http2 frame with too long " | |
2741 "padding: %d in frame %uz", | |
2742 ctx->padding, ctx->rest); | |
2743 return NGX_ERROR; | |
2744 } | |
2745 | |
2746 state = sw_fragment; | |
2747 ctx->frame_state = state; | |
2748 } | |
2749 | |
2750 if (state == sw_fragment) { | |
2751 | |
2752 rc = ngx_http_grpc_parse_fragment(r, ctx, b); | |
2753 | |
2754 if (rc == NGX_AGAIN) { | |
2755 return NGX_AGAIN; | |
2756 } | |
2757 | |
2758 if (rc == NGX_ERROR) { | |
2759 return NGX_ERROR; | |
2760 } | |
2761 | |
2762 if (rc == NGX_OK) { | |
2763 return NGX_OK; | |
2764 } | |
2765 | |
2766 /* rc == NGX_DONE */ | |
2767 | |
2768 state = sw_padding; | |
2769 ctx->frame_state = state; | |
2770 } | |
2771 | |
2772 if (state == sw_padding) { | |
2773 | |
2774 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
2775 | |
2776 ctx->rest -= b->last - b->pos; | |
2777 b->pos = b->last; | |
2778 | |
2779 return NGX_AGAIN; | |
2780 } | |
2781 | |
2782 b->pos += ctx->rest; | |
2783 ctx->rest = 0; | |
2784 | |
2785 ctx->state = ngx_http_grpc_st_start; | |
2786 | |
2787 if (ctx->flags & NGX_HTTP_V2_END_HEADERS_FLAG) { | |
2788 | |
2789 if (ctx->fragment_state) { | |
2790 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2791 "upstream sent truncated http2 header"); | |
2792 return NGX_ERROR; | |
2793 } | |
2794 | |
2795 ctx->parsing_headers = 0; | |
2796 | |
2797 return NGX_HTTP_PARSE_HEADER_DONE; | |
2798 } | |
2799 | |
2800 return NGX_AGAIN; | |
2801 } | |
2802 | |
2803 /* unreachable */ | |
2804 | |
2805 return NGX_ERROR; | |
2806 } | |
2807 | |
2808 | |
2809 static ngx_int_t | |
2810 ngx_http_grpc_parse_fragment(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
2811 ngx_buf_t *b) | |
2812 { | |
2813 u_char ch, *p, *last; | |
2814 size_t size; | |
2815 ngx_uint_t index, size_update; | |
2816 enum { | |
2817 sw_start = 0, | |
2818 sw_index, | |
2819 sw_name_length, | |
2820 sw_name_length_2, | |
2821 sw_name_length_3, | |
2822 sw_name_length_4, | |
2823 sw_name, | |
2824 sw_name_bytes, | |
2825 sw_value_length, | |
2826 sw_value_length_2, | |
2827 sw_value_length_3, | |
2828 sw_value_length_4, | |
2829 sw_value, | |
2830 sw_value_bytes | |
2831 } state; | |
2832 | |
2833 /* header block fragment */ | |
2834 | |
2835 #if 0 | |
2836 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2837 "grpc header fragment %p:%p rest:%uz", | |
2838 b->pos, b->last, ctx->rest); | |
2839 #endif | |
2840 | |
2841 if (b->last - b->pos < (ssize_t) ctx->rest - ctx->padding) { | |
2842 last = b->last; | |
2843 | |
2844 } else { | |
2845 last = b->pos + ctx->rest - ctx->padding; | |
2846 } | |
2847 | |
2848 state = ctx->fragment_state; | |
2849 | |
2850 for (p = b->pos; p < last; p++) { | |
2851 ch = *p; | |
2852 | |
2853 #if 0 | |
2854 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2855 "grpc header byte: %02Xd s:%d", ch, state); | |
2856 #endif | |
2857 | |
2858 switch (state) { | |
2859 | |
2860 case sw_start: | |
2861 ctx->index = 0; | |
2862 | |
2863 if ((ch & 0x80) == 0x80) { | |
2864 /* | |
2865 * indexed header: | |
2866 * | |
2867 * 0 1 2 3 4 5 6 7 | |
2868 * +---+---+---+---+---+---+---+---+ | |
2869 * | 1 | Index (7+) | | |
2870 * +---+---------------------------+ | |
2871 */ | |
2872 | |
2873 index = ch & ~0x80; | |
2874 | |
2875 if (index == 0 || index > 61) { | |
2876 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2877 "upstream sent invalid http2 " | |
2878 "table index: %ui", index); | |
2879 return NGX_ERROR; | |
2880 } | |
2881 | |
2882 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2883 "grpc indexed header: %ui", index); | |
2884 | |
2885 ctx->index = index; | |
2886 ctx->literal = 0; | |
2887 | |
2888 goto done; | |
2889 | |
2890 } else if ((ch & 0xc0) == 0x40) { | |
2891 /* | |
2892 * literal header with incremental indexing: | |
2893 * | |
2894 * 0 1 2 3 4 5 6 7 | |
2895 * +---+---+---+---+---+---+---+---+ | |
2896 * | 0 | 1 | Index (6+) | | |
2897 * +---+---+-----------------------+ | |
2898 * | H | Value Length (7+) | | |
2899 * +---+---------------------------+ | |
2900 * | Value String (Length octets) | | |
2901 * +-------------------------------+ | |
2902 * | |
2903 * 0 1 2 3 4 5 6 7 | |
2904 * +---+---+---+---+---+---+---+---+ | |
2905 * | 0 | 1 | 0 | | |
2906 * +---+---+-----------------------+ | |
2907 * | H | Name Length (7+) | | |
2908 * +---+---------------------------+ | |
2909 * | Name String (Length octets) | | |
2910 * +---+---------------------------+ | |
2911 * | H | Value Length (7+) | | |
2912 * +---+---------------------------+ | |
2913 * | Value String (Length octets) | | |
2914 * +-------------------------------+ | |
2915 */ | |
2916 | |
2917 index = ch & ~0xc0; | |
2918 | |
2919 if (index > 61) { | |
2920 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2921 "upstream sent invalid http2 " | |
2922 "table index: %ui", index); | |
2923 return NGX_ERROR; | |
2924 } | |
2925 | |
2926 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2927 "grpc literal header: %ui", index); | |
2928 | |
2929 if (index == 0) { | |
2930 state = sw_name_length; | |
2931 break; | |
2932 } | |
2933 | |
2934 ctx->index = index; | |
2935 ctx->literal = 1; | |
2936 | |
2937 state = sw_value_length; | |
2938 break; | |
2939 | |
2940 } else if ((ch & 0xe0) == 0x20) { | |
2941 /* | |
2942 * dynamic table size update: | |
2943 * | |
2944 * 0 1 2 3 4 5 6 7 | |
2945 * +---+---+---+---+---+---+---+---+ | |
2946 * | 0 | 0 | 1 | Max size (5+) | | |
2947 * +---+---------------------------+ | |
2948 */ | |
2949 | |
2950 size_update = ch & ~0xe0; | |
2951 | |
2952 if (size_update > 0) { | |
2953 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2954 "upstream sent invalid http2 " | |
2955 "dynamic table size update: %ui", | |
2956 size_update); | |
2957 return NGX_ERROR; | |
2958 } | |
2959 | |
2960 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2961 "grpc table size update: %ui", size_update); | |
2962 | |
2963 break; | |
2964 | |
2965 } else if ((ch & 0xf0) == 0x10) { | |
2966 /* | |
2967 * literal header field never indexed: | |
2968 * | |
2969 * 0 1 2 3 4 5 6 7 | |
2970 * +---+---+---+---+---+---+---+---+ | |
2971 * | 0 | 0 | 0 | 1 | Index (4+) | | |
2972 * +---+---+-----------------------+ | |
2973 * | H | Value Length (7+) | | |
2974 * +---+---------------------------+ | |
2975 * | Value String (Length octets) | | |
2976 * +-------------------------------+ | |
2977 * | |
2978 * 0 1 2 3 4 5 6 7 | |
2979 * +---+---+---+---+---+---+---+---+ | |
2980 * | 0 | 0 | 0 | 1 | 0 | | |
2981 * +---+---+-----------------------+ | |
2982 * | H | Name Length (7+) | | |
2983 * +---+---------------------------+ | |
2984 * | Name String (Length octets) | | |
2985 * +---+---------------------------+ | |
2986 * | H | Value Length (7+) | | |
2987 * +---+---------------------------+ | |
2988 * | Value String (Length octets) | | |
2989 * +-------------------------------+ | |
2990 */ | |
2991 | |
2992 index = ch & ~0xf0; | |
2993 | |
2994 if (index == 0x0f) { | |
2995 ctx->index = index; | |
2996 ctx->literal = 1; | |
2997 state = sw_index; | |
2998 break; | |
2999 } | |
3000 | |
3001 if (index == 0) { | |
3002 state = sw_name_length; | |
3003 break; | |
3004 } | |
3005 | |
3006 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3007 "grpc literal header never indexed: %ui", | |
3008 index); | |
3009 | |
3010 ctx->index = index; | |
3011 ctx->literal = 1; | |
3012 | |
3013 state = sw_value_length; | |
3014 break; | |
3015 | |
3016 } else if ((ch & 0xf0) == 0x00) { | |
3017 /* | |
3018 * literal header field without indexing: | |
3019 * | |
3020 * 0 1 2 3 4 5 6 7 | |
3021 * +---+---+---+---+---+---+---+---+ | |
3022 * | 0 | 0 | 0 | 0 | Index (4+) | | |
3023 * +---+---+-----------------------+ | |
3024 * | H | Value Length (7+) | | |
3025 * +---+---------------------------+ | |
3026 * | Value String (Length octets) | | |
3027 * +-------------------------------+ | |
3028 * | |
3029 * 0 1 2 3 4 5 6 7 | |
3030 * +---+---+---+---+---+---+---+---+ | |
3031 * | 0 | 0 | 0 | 0 | 0 | | |
3032 * +---+---+-----------------------+ | |
3033 * | H | Name Length (7+) | | |
3034 * +---+---------------------------+ | |
3035 * | Name String (Length octets) | | |
3036 * +---+---------------------------+ | |
3037 * | H | Value Length (7+) | | |
3038 * +---+---------------------------+ | |
3039 * | Value String (Length octets) | | |
3040 * +-------------------------------+ | |
3041 */ | |
3042 | |
3043 index = ch & ~0xf0; | |
3044 | |
3045 if (index == 0x0f) { | |
3046 ctx->index = index; | |
3047 ctx->literal = 1; | |
3048 state = sw_index; | |
3049 break; | |
3050 } | |
3051 | |
3052 if (index == 0) { | |
3053 state = sw_name_length; | |
3054 break; | |
3055 } | |
3056 | |
3057 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3058 "grpc literal header without indexing: %ui", | |
3059 index); | |
3060 | |
3061 ctx->index = index; | |
3062 ctx->literal = 1; | |
3063 | |
3064 state = sw_value_length; | |
3065 break; | |
3066 } | |
3067 | |
3068 /* not reached */ | |
3069 | |
3070 return NGX_ERROR; | |
3071 | |
3072 case sw_index: | |
3073 ctx->index = ctx->index + (ch & ~0x80); | |
3074 | |
3075 if (ch & 0x80) { | |
3076 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3077 "upstream sent http2 table index " | |
3078 "with continuation flag"); | |
3079 return NGX_ERROR; | |
3080 } | |
3081 | |
3082 if (ctx->index > 61) { | |
3083 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3084 "upstream sent invalid http2 " | |
3085 "table index: %ui", ctx->index); | |
3086 return NGX_ERROR; | |
3087 } | |
3088 | |
3089 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3090 "grpc header index: %ui", ctx->index); | |
3091 | |
3092 state = sw_value_length; | |
3093 break; | |
3094 | |
3095 case sw_name_length: | |
3096 ctx->field_huffman = ch & 0x80 ? 1 : 0; | |
3097 ctx->field_length = ch & ~0x80; | |
3098 | |
3099 if (ctx->field_length == 0x7f) { | |
3100 state = sw_name_length_2; | |
3101 break; | |
3102 } | |
3103 | |
3104 if (ctx->field_length == 0) { | |
3105 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3106 "upstream sent zero http2 " | |
3107 "header name length"); | |
3108 return NGX_ERROR; | |
3109 } | |
3110 | |
3111 state = sw_name; | |
3112 break; | |
3113 | |
3114 case sw_name_length_2: | |
3115 ctx->field_length += ch & ~0x80; | |
3116 | |
3117 if (ch & 0x80) { | |
3118 state = sw_name_length_3; | |
3119 break; | |
3120 } | |
3121 | |
3122 state = sw_name; | |
3123 break; | |
3124 | |
3125 case sw_name_length_3: | |
3126 ctx->field_length += (ch & ~0x80) << 7; | |
3127 | |
3128 if (ch & 0x80) { | |
3129 state = sw_name_length_4; | |
3130 break; | |
3131 } | |
3132 | |
3133 state = sw_name; | |
3134 break; | |
3135 | |
3136 case sw_name_length_4: | |
3137 ctx->field_length += (ch & ~0x80) << 14; | |
3138 | |
3139 if (ch & 0x80) { | |
3140 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3141 "upstream sent too large http2 " | |
3142 "header name length"); | |
3143 return NGX_ERROR; | |
3144 } | |
3145 | |
3146 state = sw_name; | |
3147 break; | |
3148 | |
3149 case sw_name: | |
3150 ctx->name.len = ctx->field_huffman ? | |
3151 ctx->field_length * 8 / 5 : ctx->field_length; | |
3152 | |
3153 ctx->name.data = ngx_pnalloc(r->pool, ctx->name.len + 1); | |
3154 if (ctx->name.data == NULL) { | |
3155 return NGX_ERROR; | |
3156 } | |
3157 | |
3158 ctx->field_end = ctx->name.data; | |
3159 ctx->field_rest = ctx->field_length; | |
3160 ctx->field_state = 0; | |
3161 | |
3162 state = sw_name_bytes; | |
3163 | |
3164 /* fall through */ | |
3165 | |
3166 case sw_name_bytes: | |
3167 | |
3168 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3169 "grpc name: len:%uz h:%d last:%uz, rest:%uz", | |
3170 ctx->field_length, | |
3171 ctx->field_huffman, | |
3172 last - p, | |
3173 ctx->rest - (p - b->pos)); | |
3174 | |
3175 size = ngx_min(last - p, (ssize_t) ctx->field_rest); | |
3176 ctx->field_rest -= size; | |
3177 | |
3178 if (ctx->field_huffman) { | |
3179 if (ngx_http_v2_huff_decode(&ctx->field_state, p, size, | |
3180 &ctx->field_end, | |
3181 ctx->field_rest == 0, | |
3182 r->connection->log) | |
3183 != NGX_OK) | |
3184 { | |
3185 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3186 "upstream sent invalid encoded header"); | |
3187 return NGX_ERROR; | |
3188 } | |
3189 | |
3190 ctx->name.len = ctx->field_end - ctx->name.data; | |
3191 ctx->name.data[ctx->name.len] = '\0'; | |
3192 | |
3193 } else { | |
7240
413189f03c8d
gRPC: fixed parsing response headers split on CONTINUATION frames.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7235
diff
changeset
|
3194 ctx->field_end = ngx_cpymem(ctx->field_end, p, size); |
7233 | 3195 ctx->name.data[ctx->name.len] = '\0'; |
3196 } | |
3197 | |
3198 p += size - 1; | |
3199 | |
3200 if (ctx->field_rest == 0) { | |
3201 state = sw_value_length; | |
3202 } | |
3203 | |
3204 break; | |
3205 | |
3206 case sw_value_length: | |
3207 ctx->field_huffman = ch & 0x80 ? 1 : 0; | |
3208 ctx->field_length = ch & ~0x80; | |
3209 | |
3210 if (ctx->field_length == 0x7f) { | |
3211 state = sw_value_length_2; | |
3212 break; | |
3213 } | |
3214 | |
3215 if (ctx->field_length == 0) { | |
3216 ngx_str_set(&ctx->value, ""); | |
3217 goto done; | |
3218 } | |
3219 | |
3220 state = sw_value; | |
3221 break; | |
3222 | |
3223 case sw_value_length_2: | |
3224 ctx->field_length += ch & ~0x80; | |
3225 | |
3226 if (ch & 0x80) { | |
3227 state = sw_value_length_3; | |
3228 break; | |
3229 } | |
3230 | |
3231 state = sw_value; | |
3232 break; | |
3233 | |
3234 case sw_value_length_3: | |
3235 ctx->field_length += (ch & ~0x80) << 7; | |
3236 | |
3237 if (ch & 0x80) { | |
3238 state = sw_value_length_4; | |
3239 break; | |
3240 } | |
3241 | |
3242 state = sw_value; | |
3243 break; | |
3244 | |
3245 case sw_value_length_4: | |
3246 ctx->field_length += (ch & ~0x80) << 14; | |
3247 | |
3248 if (ch & 0x80) { | |
3249 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3250 "upstream sent too large http2 " | |
3251 "header value length"); | |
3252 return NGX_ERROR; | |
3253 } | |
3254 | |
3255 state = sw_value; | |
3256 break; | |
3257 | |
3258 case sw_value: | |
3259 ctx->value.len = ctx->field_huffman ? | |
3260 ctx->field_length * 8 / 5 : ctx->field_length; | |
3261 | |
3262 ctx->value.data = ngx_pnalloc(r->pool, ctx->value.len + 1); | |
3263 if (ctx->value.data == NULL) { | |
3264 return NGX_ERROR; | |
3265 } | |
3266 | |
3267 ctx->field_end = ctx->value.data; | |
3268 ctx->field_rest = ctx->field_length; | |
3269 ctx->field_state = 0; | |
3270 | |
3271 state = sw_value_bytes; | |
3272 | |
3273 /* fall through */ | |
3274 | |
3275 case sw_value_bytes: | |
3276 | |
3277 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3278 "grpc value: len:%uz h:%d last:%uz, rest:%uz", | |
3279 ctx->field_length, | |
3280 ctx->field_huffman, | |
3281 last - p, | |
3282 ctx->rest - (p - b->pos)); | |
3283 | |
3284 size = ngx_min(last - p, (ssize_t) ctx->field_rest); | |
3285 ctx->field_rest -= size; | |
3286 | |
3287 if (ctx->field_huffman) { | |
3288 if (ngx_http_v2_huff_decode(&ctx->field_state, p, size, | |
3289 &ctx->field_end, | |
3290 ctx->field_rest == 0, | |
3291 r->connection->log) | |
3292 != NGX_OK) | |
3293 { | |
3294 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3295 "upstream sent invalid encoded header"); | |
3296 return NGX_ERROR; | |
3297 } | |
3298 | |
3299 ctx->value.len = ctx->field_end - ctx->value.data; | |
3300 ctx->value.data[ctx->value.len] = '\0'; | |
3301 | |
3302 } else { | |
7240
413189f03c8d
gRPC: fixed parsing response headers split on CONTINUATION frames.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7235
diff
changeset
|
3303 ctx->field_end = ngx_cpymem(ctx->field_end, p, size); |
7233 | 3304 ctx->value.data[ctx->value.len] = '\0'; |
3305 } | |
3306 | |
3307 p += size - 1; | |
3308 | |
3309 if (ctx->field_rest == 0) { | |
3310 goto done; | |
3311 } | |
3312 | |
3313 break; | |
3314 } | |
3315 | |
3316 continue; | |
3317 | |
3318 done: | |
3319 | |
3320 p++; | |
3321 ctx->rest -= p - b->pos; | |
3322 ctx->fragment_state = sw_start; | |
3323 b->pos = p; | |
3324 | |
3325 if (ctx->index) { | |
3326 ctx->name = *ngx_http_v2_get_static_name(ctx->index); | |
3327 } | |
3328 | |
3329 if (ctx->index && !ctx->literal) { | |
3330 ctx->value = *ngx_http_v2_get_static_value(ctx->index); | |
3331 } | |
3332 | |
3333 if (!ctx->index) { | |
3334 if (ngx_http_grpc_validate_header_name(r, &ctx->name) != NGX_OK) { | |
3335 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3336 "upstream sent invalid header: \"%V: %V\"", | |
3337 &ctx->name, &ctx->value); | |
3338 return NGX_ERROR; | |
3339 } | |
3340 } | |
3341 | |
3342 if (!ctx->index || ctx->literal) { | |
3343 if (ngx_http_grpc_validate_header_value(r, &ctx->value) != NGX_OK) { | |
3344 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3345 "upstream sent invalid header: \"%V: %V\"", | |
3346 &ctx->name, &ctx->value); | |
3347 return NGX_ERROR; | |
3348 } | |
3349 } | |
3350 | |
3351 return NGX_OK; | |
3352 } | |
3353 | |
3354 ctx->rest -= p - b->pos; | |
3355 ctx->fragment_state = state; | |
3356 b->pos = p; | |
3357 | |
3358 if (ctx->rest > ctx->padding) { | |
3359 return NGX_AGAIN; | |
3360 } | |
3361 | |
3362 return NGX_DONE; | |
3363 } | |
3364 | |
3365 | |
3366 static ngx_int_t | |
3367 ngx_http_grpc_validate_header_name(ngx_http_request_t *r, ngx_str_t *s) | |
3368 { | |
3369 u_char ch; | |
3370 ngx_uint_t i; | |
3371 | |
3372 for (i = 0; i < s->len; i++) { | |
3373 ch = s->data[i]; | |
3374 | |
3375 if (ch == ':' && i > 0) { | |
3376 return NGX_ERROR; | |
3377 } | |
3378 | |
3379 if (ch >= 'A' && ch <= 'Z') { | |
3380 return NGX_ERROR; | |
3381 } | |
3382 | |
3383 if (ch == '\0' || ch == CR || ch == LF) { | |
3384 return NGX_ERROR; | |
3385 } | |
3386 } | |
3387 | |
3388 return NGX_OK; | |
3389 } | |
3390 | |
3391 | |
3392 static ngx_int_t | |
3393 ngx_http_grpc_validate_header_value(ngx_http_request_t *r, ngx_str_t *s) | |
3394 { | |
3395 u_char ch; | |
3396 ngx_uint_t i; | |
3397 | |
3398 for (i = 0; i < s->len; i++) { | |
3399 ch = s->data[i]; | |
3400 | |
3401 if (ch == '\0' || ch == CR || ch == LF) { | |
3402 return NGX_ERROR; | |
3403 } | |
3404 } | |
3405 | |
3406 return NGX_OK; | |
3407 } | |
3408 | |
3409 | |
3410 static ngx_int_t | |
3411 ngx_http_grpc_parse_rst_stream(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
3412 ngx_buf_t *b) | |
3413 { | |
3414 u_char ch, *p, *last; | |
3415 enum { | |
3416 sw_start = 0, | |
3417 sw_error_2, | |
3418 sw_error_3, | |
3419 sw_error_4 | |
3420 } state; | |
3421 | |
3422 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
3423 last = b->last; | |
3424 | |
3425 } else { | |
3426 last = b->pos + ctx->rest; | |
3427 } | |
3428 | |
3429 state = ctx->frame_state; | |
3430 | |
3431 if (state == sw_start) { | |
3432 if (ctx->rest != 4) { | |
3433 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3434 "upstream sent rst stream frame " | |
3435 "with invalid length: %uz", | |
3436 ctx->rest); | |
3437 return NGX_ERROR; | |
3438 } | |
3439 } | |
3440 | |
3441 for (p = b->pos; p < last; p++) { | |
3442 ch = *p; | |
3443 | |
3444 #if 0 | |
3445 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3446 "grpc rst byte: %02Xd s:%d", ch, state); | |
3447 #endif | |
3448 | |
3449 switch (state) { | |
3450 | |
3451 case sw_start: | |
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3452 ctx->error = (ngx_uint_t) ch << 24; |
7233 | 3453 state = sw_error_2; |
3454 break; | |
3455 | |
3456 case sw_error_2: | |
3457 ctx->error |= ch << 16; | |
3458 state = sw_error_3; | |
3459 break; | |
3460 | |
3461 case sw_error_3: | |
3462 ctx->error |= ch << 8; | |
3463 state = sw_error_4; | |
3464 break; | |
3465 | |
3466 case sw_error_4: | |
3467 ctx->error |= ch; | |
3468 state = sw_start; | |
3469 | |
3470 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3471 "grpc error: %ui", ctx->error); | |
3472 | |
3473 break; | |
3474 } | |
3475 } | |
3476 | |
3477 ctx->rest -= p - b->pos; | |
3478 ctx->frame_state = state; | |
3479 b->pos = p; | |
3480 | |
3481 if (ctx->rest > 0) { | |
3482 return NGX_AGAIN; | |
3483 } | |
3484 | |
3485 return NGX_OK; | |
3486 } | |
3487 | |
3488 | |
3489 static ngx_int_t | |
3490 ngx_http_grpc_parse_goaway(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
3491 ngx_buf_t *b) | |
3492 { | |
3493 u_char ch, *p, *last; | |
3494 enum { | |
3495 sw_start = 0, | |
3496 sw_last_stream_id_2, | |
3497 sw_last_stream_id_3, | |
3498 sw_last_stream_id_4, | |
3499 sw_error, | |
3500 sw_error_2, | |
3501 sw_error_3, | |
3502 sw_error_4, | |
3503 sw_debug | |
3504 } state; | |
3505 | |
3506 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
3507 last = b->last; | |
3508 | |
3509 } else { | |
3510 last = b->pos + ctx->rest; | |
3511 } | |
3512 | |
3513 state = ctx->frame_state; | |
3514 | |
3515 if (state == sw_start) { | |
3516 | |
3517 if (ctx->stream_id) { | |
3518 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3519 "upstream sent goaway frame " | |
3520 "with non-zero stream id: %ui", | |
3521 ctx->stream_id); | |
3522 return NGX_ERROR; | |
3523 } | |
3524 | |
3525 if (ctx->rest < 8) { | |
3526 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3527 "upstream sent goaway frame " | |
3528 "with invalid length: %uz", | |
3529 ctx->rest); | |
3530 return NGX_ERROR; | |
3531 } | |
3532 } | |
3533 | |
3534 for (p = b->pos; p < last; p++) { | |
3535 ch = *p; | |
3536 | |
3537 #if 0 | |
3538 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3539 "grpc goaway byte: %02Xd s:%d", ch, state); | |
3540 #endif | |
3541 | |
3542 switch (state) { | |
3543 | |
3544 case sw_start: | |
3545 ctx->stream_id = (ch & 0x7f) << 24; | |
3546 state = sw_last_stream_id_2; | |
3547 break; | |
3548 | |
3549 case sw_last_stream_id_2: | |
3550 ctx->stream_id |= ch << 16; | |
3551 state = sw_last_stream_id_3; | |
3552 break; | |
3553 | |
3554 case sw_last_stream_id_3: | |
3555 ctx->stream_id |= ch << 8; | |
3556 state = sw_last_stream_id_4; | |
3557 break; | |
3558 | |
3559 case sw_last_stream_id_4: | |
3560 ctx->stream_id |= ch; | |
3561 state = sw_error; | |
3562 break; | |
3563 | |
3564 case sw_error: | |
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3565 ctx->error = (ngx_uint_t) ch << 24; |
7233 | 3566 state = sw_error_2; |
3567 break; | |
3568 | |
3569 case sw_error_2: | |
3570 ctx->error |= ch << 16; | |
3571 state = sw_error_3; | |
3572 break; | |
3573 | |
3574 case sw_error_3: | |
3575 ctx->error |= ch << 8; | |
3576 state = sw_error_4; | |
3577 break; | |
3578 | |
3579 case sw_error_4: | |
3580 ctx->error |= ch; | |
3581 state = sw_debug; | |
3582 break; | |
3583 | |
3584 case sw_debug: | |
3585 break; | |
3586 } | |
3587 } | |
3588 | |
3589 ctx->rest -= p - b->pos; | |
3590 ctx->frame_state = state; | |
3591 b->pos = p; | |
3592 | |
3593 if (ctx->rest > 0) { | |
3594 return NGX_AGAIN; | |
3595 } | |
3596 | |
3597 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3598 "grpc goaway: %ui, stream %ui", | |
3599 ctx->error, ctx->stream_id); | |
3600 | |
3601 ctx->state = ngx_http_grpc_st_start; | |
3602 | |
3603 return NGX_OK; | |
3604 } | |
3605 | |
3606 | |
3607 static ngx_int_t | |
3608 ngx_http_grpc_parse_window_update(ngx_http_request_t *r, | |
3609 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b) | |
3610 { | |
3611 u_char ch, *p, *last; | |
3612 enum { | |
3613 sw_start = 0, | |
3614 sw_size_2, | |
3615 sw_size_3, | |
3616 sw_size_4 | |
3617 } state; | |
3618 | |
3619 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
3620 last = b->last; | |
3621 | |
3622 } else { | |
3623 last = b->pos + ctx->rest; | |
3624 } | |
3625 | |
3626 state = ctx->frame_state; | |
3627 | |
3628 if (state == sw_start) { | |
3629 if (ctx->rest != 4) { | |
3630 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3631 "upstream sent window update frame " | |
3632 "with invalid length: %uz", | |
3633 ctx->rest); | |
3634 return NGX_ERROR; | |
3635 } | |
3636 } | |
3637 | |
3638 for (p = b->pos; p < last; p++) { | |
3639 ch = *p; | |
3640 | |
3641 #if 0 | |
3642 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3643 "grpc window update byte: %02Xd s:%d", ch, state); | |
3644 #endif | |
3645 | |
3646 switch (state) { | |
3647 | |
3648 case sw_start: | |
3649 ctx->window_update = (ch & 0x7f) << 24; | |
3650 state = sw_size_2; | |
3651 break; | |
3652 | |
3653 case sw_size_2: | |
3654 ctx->window_update |= ch << 16; | |
3655 state = sw_size_3; | |
3656 break; | |
3657 | |
3658 case sw_size_3: | |
3659 ctx->window_update |= ch << 8; | |
3660 state = sw_size_4; | |
3661 break; | |
3662 | |
3663 case sw_size_4: | |
3664 ctx->window_update |= ch; | |
3665 state = sw_start; | |
3666 break; | |
3667 } | |
3668 } | |
3669 | |
3670 ctx->rest -= p - b->pos; | |
3671 ctx->frame_state = state; | |
3672 b->pos = p; | |
3673 | |
3674 if (ctx->rest > 0) { | |
3675 return NGX_AGAIN; | |
3676 } | |
3677 | |
3678 ctx->state = ngx_http_grpc_st_start; | |
3679 | |
3680 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3681 "grpc window update: %ui", ctx->window_update); | |
3682 | |
3683 if (ctx->stream_id) { | |
3684 | |
3685 if (ctx->window_update > (size_t) NGX_HTTP_V2_MAX_WINDOW | |
3686 - ctx->send_window) | |
3687 { | |
3688 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3689 "upstream sent too large window update"); | |
3690 return NGX_ERROR; | |
3691 } | |
3692 | |
3693 ctx->send_window += ctx->window_update; | |
3694 | |
3695 } else { | |
3696 | |
3697 if (ctx->window_update > NGX_HTTP_V2_MAX_WINDOW | |
3698 - ctx->connection->send_window) | |
3699 { | |
3700 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3701 "upstream sent too large window update"); | |
3702 return NGX_ERROR; | |
3703 } | |
3704 | |
3705 ctx->connection->send_window += ctx->window_update; | |
3706 } | |
3707 | |
3708 return NGX_OK; | |
3709 } | |
3710 | |
3711 | |
3712 static ngx_int_t | |
3713 ngx_http_grpc_parse_settings(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
3714 ngx_buf_t *b) | |
3715 { | |
3716 u_char ch, *p, *last; | |
3717 ssize_t window_update; | |
3718 enum { | |
3719 sw_start = 0, | |
3720 sw_id, | |
3721 sw_id_2, | |
3722 sw_value, | |
3723 sw_value_2, | |
3724 sw_value_3, | |
3725 sw_value_4 | |
3726 } state; | |
3727 | |
3728 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
3729 last = b->last; | |
3730 | |
3731 } else { | |
3732 last = b->pos + ctx->rest; | |
3733 } | |
3734 | |
3735 state = ctx->frame_state; | |
3736 | |
3737 if (state == sw_start) { | |
3738 | |
3739 if (ctx->stream_id) { | |
3740 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3741 "upstream sent settings frame " | |
3742 "with non-zero stream id: %ui", | |
3743 ctx->stream_id); | |
3744 return NGX_ERROR; | |
3745 } | |
3746 | |
3747 if (ctx->flags & NGX_HTTP_V2_ACK_FLAG) { | |
3748 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3749 "grpc settings ack"); | |
3750 | |
3751 if (ctx->rest != 0) { | |
3752 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3753 "upstream sent settings frame " | |
3754 "with ack flag and non-zero length: %uz", | |
3755 ctx->rest); | |
3756 return NGX_ERROR; | |
3757 } | |
3758 | |
3759 ctx->state = ngx_http_grpc_st_start; | |
3760 | |
3761 return NGX_OK; | |
3762 } | |
3763 | |
3764 if (ctx->rest % 6 != 0) { | |
3765 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3766 "upstream sent settings frame " | |
3767 "with invalid length: %uz", | |
3768 ctx->rest); | |
3769 return NGX_ERROR; | |
3770 } | |
7379
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3771 |
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3772 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
|
3773 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
|
3774 "upstream sent too many settings frames"); |
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3775 return NGX_ERROR; |
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3776 } |
7233 | 3777 } |
3778 | |
3779 for (p = b->pos; p < last; p++) { | |
3780 ch = *p; | |
3781 | |
3782 #if 0 | |
3783 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3784 "grpc settings byte: %02Xd s:%d", ch, state); | |
3785 #endif | |
3786 | |
3787 switch (state) { | |
3788 | |
3789 case sw_start: | |
3790 case sw_id: | |
3791 ctx->setting_id = ch << 8; | |
3792 state = sw_id_2; | |
3793 break; | |
3794 | |
3795 case sw_id_2: | |
3796 ctx->setting_id |= ch; | |
3797 state = sw_value; | |
3798 break; | |
3799 | |
3800 case sw_value: | |
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3801 ctx->setting_value = (ngx_uint_t) ch << 24; |
7233 | 3802 state = sw_value_2; |
3803 break; | |
3804 | |
3805 case sw_value_2: | |
3806 ctx->setting_value |= ch << 16; | |
3807 state = sw_value_3; | |
3808 break; | |
3809 | |
3810 case sw_value_3: | |
3811 ctx->setting_value |= ch << 8; | |
3812 state = sw_value_4; | |
3813 break; | |
3814 | |
3815 case sw_value_4: | |
3816 ctx->setting_value |= ch; | |
3817 state = sw_id; | |
3818 | |
3819 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3820 "grpc setting: %ui %ui", | |
3821 ctx->setting_id, ctx->setting_value); | |
3822 | |
3823 /* | |
3824 * The following settings are defined by the protocol: | |
3825 * | |
3826 * SETTINGS_HEADER_TABLE_SIZE, SETTINGS_ENABLE_PUSH, | |
3827 * SETTINGS_MAX_CONCURRENT_STREAMS, SETTINGS_INITIAL_WINDOW_SIZE, | |
3828 * SETTINGS_MAX_FRAME_SIZE, SETTINGS_MAX_HEADER_LIST_SIZE | |
3829 * | |
3830 * Only SETTINGS_INITIAL_WINDOW_SIZE seems to be needed in | |
3831 * a simple client. | |
3832 */ | |
3833 | |
3834 if (ctx->setting_id == 0x04) { | |
3835 /* SETTINGS_INITIAL_WINDOW_SIZE */ | |
3836 | |
3837 if (ctx->setting_value > NGX_HTTP_V2_MAX_WINDOW) { | |
3838 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3839 "upstream sent settings frame " | |
3840 "with too large initial window size: %ui", | |
3841 ctx->setting_value); | |
3842 return NGX_ERROR; | |
3843 } | |
3844 | |
3845 window_update = ctx->setting_value | |
3846 - ctx->connection->init_window; | |
3847 ctx->connection->init_window = ctx->setting_value; | |
3848 | |
3849 if (ctx->send_window > 0 | |
3850 && window_update > (ssize_t) NGX_HTTP_V2_MAX_WINDOW | |
3851 - ctx->send_window) | |
3852 { | |
3853 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3854 "upstream sent settings frame " | |
3855 "with too large initial window size: %ui", | |
3856 ctx->setting_value); | |
3857 return NGX_ERROR; | |
3858 } | |
3859 | |
3860 ctx->send_window += window_update; | |
3861 } | |
3862 | |
3863 break; | |
3864 } | |
3865 } | |
3866 | |
3867 ctx->rest -= p - b->pos; | |
3868 ctx->frame_state = state; | |
3869 b->pos = p; | |
3870 | |
3871 if (ctx->rest > 0) { | |
3872 return NGX_AGAIN; | |
3873 } | |
3874 | |
3875 ctx->state = ngx_http_grpc_st_start; | |
3876 | |
3877 return ngx_http_grpc_send_settings_ack(r, ctx); | |
3878 } | |
3879 | |
3880 | |
3881 static ngx_int_t | |
3882 ngx_http_grpc_parse_ping(ngx_http_request_t *r, | |
3883 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b) | |
3884 { | |
3885 u_char ch, *p, *last; | |
3886 enum { | |
3887 sw_start = 0, | |
3888 sw_data_2, | |
3889 sw_data_3, | |
3890 sw_data_4, | |
3891 sw_data_5, | |
3892 sw_data_6, | |
3893 sw_data_7, | |
3894 sw_data_8 | |
3895 } state; | |
3896 | |
3897 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
3898 last = b->last; | |
3899 | |
3900 } else { | |
3901 last = b->pos + ctx->rest; | |
3902 } | |
3903 | |
3904 state = ctx->frame_state; | |
3905 | |
3906 if (state == sw_start) { | |
3907 | |
3908 if (ctx->stream_id) { | |
3909 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3910 "upstream sent ping frame " | |
3911 "with non-zero stream id: %ui", | |
3912 ctx->stream_id); | |
3913 return NGX_ERROR; | |
3914 } | |
3915 | |
3916 if (ctx->rest != 8) { | |
3917 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3918 "upstream sent ping frame " | |
3919 "with invalid length: %uz", | |
3920 ctx->rest); | |
3921 return NGX_ERROR; | |
3922 } | |
3923 | |
3924 if (ctx->flags & NGX_HTTP_V2_ACK_FLAG) { | |
3925 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3926 "upstream sent ping frame with ack flag"); | |
3927 return NGX_ERROR; | |
3928 } | |
7379
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parents:
7371
diff
changeset
|
3929 |
57463f4e2fcd
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7371
diff
changeset
|
3930 if (ctx->free == NULL && ctx->pings++ > 1000) { |
57463f4e2fcd
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7371
diff
changeset
|
3931 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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diff
changeset
|
3932 "upstream sent too many ping frames"); |
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|
3933 return NGX_ERROR; |
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|
3934 } |
7233 | 3935 } |
3936 | |
3937 for (p = b->pos; p < last; p++) { | |
3938 ch = *p; | |
3939 | |
3940 #if 0 | |
3941 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3942 "grpc ping byte: %02Xd s:%d", ch, state); | |
3943 #endif | |
3944 | |
3945 if (state < sw_data_8) { | |
3946 ctx->ping_data[state] = ch; | |
3947 state++; | |
3948 | |
3949 } else { | |
3950 ctx->ping_data[7] = ch; | |
3951 state = sw_start; | |
3952 | |
3953 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3954 "grpc ping"); | |
3955 } | |
3956 } | |
3957 | |
3958 ctx->rest -= p - b->pos; | |
3959 ctx->frame_state = state; | |
3960 b->pos = p; | |
3961 | |
3962 if (ctx->rest > 0) { | |
3963 return NGX_AGAIN; | |
3964 } | |
3965 | |
3966 ctx->state = ngx_http_grpc_st_start; | |
3967 | |
3968 return ngx_http_grpc_send_ping_ack(r, ctx); | |
3969 } | |
3970 | |
3971 | |
3972 static ngx_int_t | |
3973 ngx_http_grpc_send_settings_ack(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
3974 { | |
3975 ngx_chain_t *cl, **ll; | |
3976 ngx_http_grpc_frame_t *f; | |
3977 | |
3978 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3979 "grpc send settings ack"); | |
3980 | |
3981 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
3982 ll = &cl->next; | |
3983 } | |
3984 | |
3985 cl = ngx_http_grpc_get_buf(r, ctx); | |
3986 if (cl == NULL) { | |
3987 return NGX_ERROR; | |
3988 } | |
3989 | |
3990 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
3991 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
3992 | |
3993 f->length_0 = 0; | |
3994 f->length_1 = 0; | |
3995 f->length_2 = 0; | |
3996 f->type = NGX_HTTP_V2_SETTINGS_FRAME; | |
3997 f->flags = NGX_HTTP_V2_ACK_FLAG; | |
3998 f->stream_id_0 = 0; | |
3999 f->stream_id_1 = 0; | |
4000 f->stream_id_2 = 0; | |
4001 f->stream_id_3 = 0; | |
4002 | |
4003 *ll = cl; | |
4004 | |
4005 return NGX_OK; | |
4006 } | |
4007 | |
4008 | |
4009 static ngx_int_t | |
4010 ngx_http_grpc_send_ping_ack(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
4011 { | |
4012 ngx_chain_t *cl, **ll; | |
4013 ngx_http_grpc_frame_t *f; | |
4014 | |
4015 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
4016 "grpc send ping ack"); | |
4017 | |
4018 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
4019 ll = &cl->next; | |
4020 } | |
4021 | |
4022 cl = ngx_http_grpc_get_buf(r, ctx); | |
4023 if (cl == NULL) { | |
4024 return NGX_ERROR; | |
4025 } | |
4026 | |
4027 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
4028 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
4029 | |
4030 f->length_0 = 0; | |
4031 f->length_1 = 0; | |
4032 f->length_2 = 8; | |
4033 f->type = NGX_HTTP_V2_PING_FRAME; | |
4034 f->flags = NGX_HTTP_V2_ACK_FLAG; | |
4035 f->stream_id_0 = 0; | |
4036 f->stream_id_1 = 0; | |
4037 f->stream_id_2 = 0; | |
4038 f->stream_id_3 = 0; | |
4039 | |
4040 cl->buf->last = ngx_copy(cl->buf->last, ctx->ping_data, 8); | |
4041 | |
4042 *ll = cl; | |
4043 | |
4044 return NGX_OK; | |
4045 } | |
4046 | |
4047 | |
4048 static ngx_int_t | |
4049 ngx_http_grpc_send_window_update(ngx_http_request_t *r, | |
4050 ngx_http_grpc_ctx_t *ctx) | |
4051 { | |
4052 size_t n; | |
4053 ngx_chain_t *cl, **ll; | |
4054 ngx_http_grpc_frame_t *f; | |
4055 | |
4056 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
4057 "grpc send window update: %uz %uz", | |
4058 ctx->connection->recv_window, ctx->recv_window); | |
4059 | |
4060 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
4061 ll = &cl->next; | |
4062 } | |
4063 | |
4064 cl = ngx_http_grpc_get_buf(r, ctx); | |
4065 if (cl == NULL) { | |
4066 return NGX_ERROR; | |
4067 } | |
4068 | |
4069 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
4070 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
4071 | |
4072 f->length_0 = 0; | |
4073 f->length_1 = 0; | |
4074 f->length_2 = 4; | |
4075 f->type = NGX_HTTP_V2_WINDOW_UPDATE_FRAME; | |
4076 f->flags = 0; | |
4077 f->stream_id_0 = 0; | |
4078 f->stream_id_1 = 0; | |
4079 f->stream_id_2 = 0; | |
4080 f->stream_id_3 = 0; | |
4081 | |
4082 n = NGX_HTTP_V2_MAX_WINDOW - ctx->connection->recv_window; | |
4083 ctx->connection->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
4084 | |
4085 *cl->buf->last++ = (u_char) ((n >> 24) & 0xff); | |
4086 *cl->buf->last++ = (u_char) ((n >> 16) & 0xff); | |
4087 *cl->buf->last++ = (u_char) ((n >> 8) & 0xff); | |
4088 *cl->buf->last++ = (u_char) (n & 0xff); | |
4089 | |
4090 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
4091 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
4092 | |
4093 f->length_0 = 0; | |
4094 f->length_1 = 0; | |
4095 f->length_2 = 4; | |
4096 f->type = NGX_HTTP_V2_WINDOW_UPDATE_FRAME; | |
4097 f->flags = 0; | |
4098 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
4099 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
4100 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
4101 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
4102 | |
4103 n = NGX_HTTP_V2_MAX_WINDOW - ctx->recv_window; | |
4104 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
4105 | |
4106 *cl->buf->last++ = (u_char) ((n >> 24) & 0xff); | |
4107 *cl->buf->last++ = (u_char) ((n >> 16) & 0xff); | |
4108 *cl->buf->last++ = (u_char) ((n >> 8) & 0xff); | |
4109 *cl->buf->last++ = (u_char) (n & 0xff); | |
4110 | |
4111 *ll = cl; | |
4112 | |
4113 return NGX_OK; | |
4114 } | |
4115 | |
4116 | |
4117 static ngx_chain_t * | |
4118 ngx_http_grpc_get_buf(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
4119 { | |
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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diff
changeset
|
4120 u_char *start; |
7233 | 4121 ngx_buf_t *b; |
4122 ngx_chain_t *cl; | |
4123 | |
4124 cl = ngx_chain_get_free_buf(r->pool, &ctx->free); | |
4125 if (cl == NULL) { | |
4126 return NULL; | |
4127 } | |
4128 | |
4129 b = cl->buf; | |
7305
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|
4130 start = b->start; |
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diff
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4131 |
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|
4132 if (start == NULL) { |
7233 | 4133 |
4134 /* | |
4135 * each buffer is large enough to hold two window update | |
4136 * frames in a row | |
4137 */ | |
4138 | |
7305
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4139 start = ngx_palloc(r->pool, 2 * sizeof(ngx_http_grpc_frame_t) + 8); |
6cfd45d4c754
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|
4140 if (start == NULL) { |
7233 | 4141 return NULL; |
4142 } | |
4143 | |
4144 } | |
4145 | |
7305
6cfd45d4c754
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diff
changeset
|
4146 ngx_memzero(b, sizeof(ngx_buf_t)); |
6cfd45d4c754
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diff
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|
4147 |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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diff
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|
4148 b->start = start; |
6cfd45d4c754
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|
4149 b->pos = start; |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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|
4150 b->last = start; |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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|
4151 b->end = start + 2 * sizeof(ngx_http_grpc_frame_t) + 8; |
6cfd45d4c754
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4152 |
6cfd45d4c754
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|
4153 b->tag = (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter; |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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|
4154 b->temporary = 1; |
6cfd45d4c754
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|
4155 b->flush = 1; |
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|
4156 |
7233 | 4157 return cl; |
4158 } | |
4159 | |
4160 | |
4161 static ngx_http_grpc_ctx_t * | |
4162 ngx_http_grpc_get_ctx(ngx_http_request_t *r) | |
4163 { | |
4164 ngx_http_grpc_ctx_t *ctx; | |
4165 ngx_http_upstream_t *u; | |
4166 | |
4167 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); | |
4168 | |
4169 if (ctx->connection == NULL) { | |
4170 u = r->upstream; | |
4171 | |
4172 if (ngx_http_grpc_get_connection_data(r, ctx, &u->peer) != NGX_OK) { | |
4173 return NULL; | |
4174 } | |
4175 } | |
4176 | |
4177 return ctx; | |
4178 } | |
4179 | |
4180 | |
4181 static ngx_int_t | |
4182 ngx_http_grpc_get_connection_data(ngx_http_request_t *r, | |
4183 ngx_http_grpc_ctx_t *ctx, ngx_peer_connection_t *pc) | |
4184 { | |
4185 ngx_connection_t *c; | |
4186 ngx_pool_cleanup_t *cln; | |
4187 | |
4188 c = pc->connection; | |
4189 | |
4190 if (pc->cached) { | |
4191 | |
4192 /* | |
4193 * for cached connections, connection data can be found | |
4194 * in the cleanup handler | |
4195 */ | |
4196 | |
4197 for (cln = c->pool->cleanup; cln; cln = cln->next) { | |
4198 if (cln->handler == ngx_http_grpc_cleanup) { | |
4199 ctx->connection = cln->data; | |
4200 break; | |
4201 } | |
4202 } | |
4203 | |
4204 if (ctx->connection == NULL) { | |
4205 ngx_log_error(NGX_LOG_ERR, c->log, 0, | |
4206 "no connection data found for " | |
4207 "keepalive http2 connection"); | |
4208 return NGX_ERROR; | |
4209 } | |
4210 | |
4211 ctx->send_window = ctx->connection->init_window; | |
4212 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
4213 | |
4214 ctx->connection->last_stream_id += 2; | |
4215 ctx->id = ctx->connection->last_stream_id; | |
4216 | |
4217 return NGX_OK; | |
4218 } | |
4219 | |
4220 cln = ngx_pool_cleanup_add(c->pool, sizeof(ngx_http_grpc_conn_t)); | |
4221 if (cln == NULL) { | |
4222 return NGX_ERROR; | |
4223 } | |
4224 | |
4225 cln->handler = ngx_http_grpc_cleanup; | |
4226 ctx->connection = cln->data; | |
4227 | |
4228 ctx->connection->init_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
4229 ctx->connection->send_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
4230 ctx->connection->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
4231 | |
4232 ctx->send_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
4233 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
4234 | |
4235 ctx->id = 1; | |
4236 ctx->connection->last_stream_id = 1; | |
4237 | |
4238 return NGX_OK; | |
4239 } | |
4240 | |
4241 | |
4242 static void | |
4243 ngx_http_grpc_cleanup(void *data) | |
4244 { | |
4245 #if 0 | |
4246 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
4247 "grpc cleanup"); | |
4248 #endif | |
4249 return; | |
4250 } | |
4251 | |
4252 | |
4253 static void | |
4254 ngx_http_grpc_abort_request(ngx_http_request_t *r) | |
4255 { | |
4256 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
4257 "abort grpc request"); | |
4258 return; | |
4259 } | |
4260 | |
4261 | |
4262 static void | |
4263 ngx_http_grpc_finalize_request(ngx_http_request_t *r, ngx_int_t rc) | |
4264 { | |
4265 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
4266 "finalize grpc request"); | |
4267 return; | |
4268 } | |
4269 | |
4270 | |
7234
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|
4271 static ngx_int_t |
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|
4272 ngx_http_grpc_internal_trailers_variable(ngx_http_request_t *r, |
c693daca57f7
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|
4273 ngx_http_variable_value_t *v, uintptr_t data) |
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|
4274 { |
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|
4275 ngx_table_elt_t *te; |
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|
4276 |
c693daca57f7
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|
4277 te = r->headers_in.te; |
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|
4278 |
c693daca57f7
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|
4279 if (te == NULL) { |
c693daca57f7
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|
4280 v->not_found = 1; |
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|
4281 return NGX_OK; |
c693daca57f7
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diff
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|
4282 } |
c693daca57f7
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changeset
|
4283 |
c693daca57f7
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changeset
|
4284 if (ngx_strlcasestrn(te->value.data, te->value.data + te->value.len, |
c693daca57f7
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7233
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changeset
|
4285 (u_char *) "trailers", 8 - 1) |
c693daca57f7
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7233
diff
changeset
|
4286 == NULL) |
c693daca57f7
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7233
diff
changeset
|
4287 { |
c693daca57f7
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diff
changeset
|
4288 v->not_found = 1; |
c693daca57f7
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changeset
|
4289 return NGX_OK; |
c693daca57f7
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diff
changeset
|
4290 } |
c693daca57f7
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changeset
|
4291 |
c693daca57f7
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changeset
|
4292 v->valid = 1; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4293 v->no_cacheable = 0; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4294 v->not_found = 0; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4295 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4296 v->data = (u_char *) "trailers"; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4297 v->len = sizeof("trailers") - 1; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4298 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4299 return NGX_OK; |
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 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4302 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4303 static ngx_int_t |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4304 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
|
4305 { |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4306 ngx_http_variable_t *var, *v; |
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 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
|
4309 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
|
4310 if (var == NULL) { |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4311 return NGX_ERROR; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4312 } |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4313 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4314 var->get_handler = v->get_handler; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4315 var->data = v->data; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4316 } |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4317 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4318 return NGX_OK; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4319 } |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4320 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4321 |
7233 | 4322 static void * |
4323 ngx_http_grpc_create_loc_conf(ngx_conf_t *cf) | |
4324 { | |
4325 ngx_http_grpc_loc_conf_t *conf; | |
4326 | |
4327 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_grpc_loc_conf_t)); | |
4328 if (conf == NULL) { | |
4329 return NULL; | |
4330 } | |
4331 | |
4332 /* | |
4333 * set by ngx_pcalloc(): | |
4334 * | |
4335 * conf->upstream.ignore_headers = 0; | |
4336 * conf->upstream.next_upstream = 0; | |
4337 * conf->upstream.hide_headers_hash = { NULL, 0 }; | |
4338 * conf->upstream.ssl_name = NULL; | |
4339 * | |
4340 * conf->headers.lengths = NULL; | |
4341 * conf->headers.values = NULL; | |
4342 * conf->headers.hash = { NULL, 0 }; | |
4343 * conf->host = { 0, NULL }; | |
4344 * conf->host_set = 0; | |
4345 * conf->ssl = 0; | |
4346 * conf->ssl_protocols = 0; | |
4347 * conf->ssl_ciphers = { 0, NULL }; | |
4348 * conf->ssl_trusted_certificate = { 0, NULL }; | |
4349 * conf->ssl_crl = { 0, NULL }; | |
4350 * conf->ssl_certificate = { 0, NULL }; | |
4351 * conf->ssl_certificate_key = { 0, NULL }; | |
4352 */ | |
4353 | |
4354 conf->upstream.local = NGX_CONF_UNSET_PTR; | |
7371
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4355 conf->upstream.socket_keepalive = NGX_CONF_UNSET; |
7233 | 4356 conf->upstream.next_upstream_tries = NGX_CONF_UNSET_UINT; |
4357 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC; | |
4358 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC; | |
4359 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC; | |
4360 conf->upstream.next_upstream_timeout = NGX_CONF_UNSET_MSEC; | |
4361 | |
4362 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE; | |
4363 | |
4364 conf->upstream.hide_headers = NGX_CONF_UNSET_PTR; | |
4365 conf->upstream.pass_headers = NGX_CONF_UNSET_PTR; | |
4366 | |
4367 conf->upstream.intercept_errors = NGX_CONF_UNSET; | |
4368 | |
4369 #if (NGX_HTTP_SSL) | |
4370 conf->upstream.ssl_session_reuse = NGX_CONF_UNSET; | |
4371 conf->upstream.ssl_server_name = NGX_CONF_UNSET; | |
4372 conf->upstream.ssl_verify = NGX_CONF_UNSET; | |
4373 conf->ssl_verify_depth = NGX_CONF_UNSET_UINT; | |
4374 conf->ssl_passwords = NGX_CONF_UNSET_PTR; | |
8183
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4375 conf->ssl_conf_commands = NGX_CONF_UNSET_PTR; |
7233 | 4376 #endif |
4377 | |
4378 /* the hardcoded values */ | |
4379 conf->upstream.cyclic_temp_file = 0; | |
4380 conf->upstream.buffering = 0; | |
4381 conf->upstream.ignore_client_abort = 0; | |
4382 conf->upstream.send_lowat = 0; | |
4383 conf->upstream.bufs.num = 0; | |
4384 conf->upstream.busy_buffers_size = 0; | |
4385 conf->upstream.max_temp_file_size = 0; | |
4386 conf->upstream.temp_file_write_size = 0; | |
4387 conf->upstream.pass_request_headers = 1; | |
4388 conf->upstream.pass_request_body = 1; | |
4389 conf->upstream.force_ranges = 0; | |
4390 conf->upstream.pass_trailers = 1; | |
4391 conf->upstream.preserve_output = 1; | |
4392 | |
8181
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7983
diff
changeset
|
4393 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:
7983
diff
changeset
|
4394 |
7233 | 4395 ngx_str_set(&conf->upstream.module, "grpc"); |
4396 | |
4397 return conf; | |
4398 } | |
4399 | |
4400 | |
4401 static char * | |
4402 ngx_http_grpc_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
4403 { | |
4404 ngx_http_grpc_loc_conf_t *prev = parent; | |
4405 ngx_http_grpc_loc_conf_t *conf = child; | |
4406 | |
4407 ngx_int_t rc; | |
4408 ngx_hash_init_t hash; | |
4409 ngx_http_core_loc_conf_t *clcf; | |
4410 | |
4411 ngx_conf_merge_ptr_value(conf->upstream.local, | |
4412 prev->upstream.local, NULL); | |
4413 | |
7371
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4414 ngx_conf_merge_value(conf->upstream.socket_keepalive, |
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4415 prev->upstream.socket_keepalive, 0); |
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4416 |
7233 | 4417 ngx_conf_merge_uint_value(conf->upstream.next_upstream_tries, |
4418 prev->upstream.next_upstream_tries, 0); | |
4419 | |
4420 ngx_conf_merge_msec_value(conf->upstream.connect_timeout, | |
4421 prev->upstream.connect_timeout, 60000); | |
4422 | |
4423 ngx_conf_merge_msec_value(conf->upstream.send_timeout, | |
4424 prev->upstream.send_timeout, 60000); | |
4425 | |
4426 ngx_conf_merge_msec_value(conf->upstream.read_timeout, | |
4427 prev->upstream.read_timeout, 60000); | |
4428 | |
4429 ngx_conf_merge_msec_value(conf->upstream.next_upstream_timeout, | |
4430 prev->upstream.next_upstream_timeout, 0); | |
4431 | |
4432 ngx_conf_merge_size_value(conf->upstream.buffer_size, | |
4433 prev->upstream.buffer_size, | |
4434 (size_t) ngx_pagesize); | |
4435 | |
4436 ngx_conf_merge_bitmask_value(conf->upstream.ignore_headers, | |
4437 prev->upstream.ignore_headers, | |
4438 NGX_CONF_BITMASK_SET); | |
4439 | |
4440 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream, | |
4441 prev->upstream.next_upstream, | |
4442 (NGX_CONF_BITMASK_SET | |
4443 |NGX_HTTP_UPSTREAM_FT_ERROR | |
4444 |NGX_HTTP_UPSTREAM_FT_TIMEOUT)); | |
4445 | |
4446 if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) { | |
4447 conf->upstream.next_upstream = NGX_CONF_BITMASK_SET | |
4448 |NGX_HTTP_UPSTREAM_FT_OFF; | |
4449 } | |
4450 | |
4451 ngx_conf_merge_value(conf->upstream.intercept_errors, | |
4452 prev->upstream.intercept_errors, 0); | |
4453 | |
4454 #if (NGX_HTTP_SSL) | |
4455 | |
4456 ngx_conf_merge_value(conf->upstream.ssl_session_reuse, | |
4457 prev->upstream.ssl_session_reuse, 1); | |
4458 | |
4459 ngx_conf_merge_bitmask_value(conf->ssl_protocols, prev->ssl_protocols, | |
4460 (NGX_CONF_BITMASK_SET|NGX_SSL_TLSv1 | |
4461 |NGX_SSL_TLSv1_1|NGX_SSL_TLSv1_2)); | |
4462 | |
4463 ngx_conf_merge_str_value(conf->ssl_ciphers, prev->ssl_ciphers, | |
4464 "DEFAULT"); | |
4465 | |
4466 if (conf->upstream.ssl_name == NULL) { | |
4467 conf->upstream.ssl_name = prev->upstream.ssl_name; | |
4468 } | |
4469 | |
4470 ngx_conf_merge_value(conf->upstream.ssl_server_name, | |
4471 prev->upstream.ssl_server_name, 0); | |
4472 ngx_conf_merge_value(conf->upstream.ssl_verify, | |
4473 prev->upstream.ssl_verify, 0); | |
4474 ngx_conf_merge_uint_value(conf->ssl_verify_depth, | |
4475 prev->ssl_verify_depth, 1); | |
4476 ngx_conf_merge_str_value(conf->ssl_trusted_certificate, | |
4477 prev->ssl_trusted_certificate, ""); | |
4478 ngx_conf_merge_str_value(conf->ssl_crl, prev->ssl_crl, ""); | |
4479 | |
4480 ngx_conf_merge_str_value(conf->ssl_certificate, | |
4481 prev->ssl_certificate, ""); | |
4482 ngx_conf_merge_str_value(conf->ssl_certificate_key, | |
4483 prev->ssl_certificate_key, ""); | |
4484 ngx_conf_merge_ptr_value(conf->ssl_passwords, prev->ssl_passwords, NULL); | |
4485 | |
8183
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4486 ngx_conf_merge_ptr_value(conf->ssl_conf_commands, |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4487 prev->ssl_conf_commands, NULL); |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4488 |
7233 | 4489 if (conf->ssl && ngx_http_grpc_set_ssl(cf, conf) != NGX_OK) { |
4490 return NGX_CONF_ERROR; | |
4491 } | |
4492 | |
4493 #endif | |
4494 | |
4495 hash.max_size = 512; | |
4496 hash.bucket_size = ngx_align(64, ngx_cacheline_size); | |
4497 hash.name = "grpc_headers_hash"; | |
4498 | |
4499 if (ngx_http_upstream_hide_headers_hash(cf, &conf->upstream, | |
4500 &prev->upstream, ngx_http_grpc_hide_headers, &hash) | |
4501 != NGX_OK) | |
4502 { | |
4503 return NGX_CONF_ERROR; | |
4504 } | |
4505 | |
4506 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
4507 | |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4508 if (clcf->noname |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4509 && 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
|
4510 { |
7233 | 4511 conf->upstream.upstream = prev->upstream.upstream; |
4512 conf->host = prev->host; | |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4513 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4514 conf->grpc_lengths = prev->grpc_lengths; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4515 conf->grpc_values = prev->grpc_values; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4516 |
7233 | 4517 #if (NGX_HTTP_SSL) |
4518 conf->upstream.ssl = prev->upstream.ssl; | |
4519 #endif | |
4520 } | |
4521 | |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4522 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
|
4523 && (conf->upstream.upstream || conf->grpc_lengths)) |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4524 { |
7233 | 4525 clcf->handler = ngx_http_grpc_handler; |
4526 } | |
4527 | |
8181
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7983
diff
changeset
|
4528 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:
7983
diff
changeset
|
4529 |
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7983
diff
changeset
|
4530 if (conf->headers_source == prev->headers_source) { |
7233 | 4531 conf->headers = prev->headers; |
4532 conf->host_set = prev->host_set; | |
4533 } | |
4534 | |
4535 rc = ngx_http_grpc_init_headers(cf, conf, &conf->headers, | |
4536 ngx_http_grpc_headers); | |
4537 if (rc != NGX_OK) { | |
4538 return NGX_CONF_ERROR; | |
4539 } | |
4540 | |
4541 /* | |
4542 * special handling to preserve conf->headers in the "http" section | |
4543 * to inherit it to all servers | |
4544 */ | |
4545 | |
4546 if (prev->headers.hash.buckets == NULL | |
4547 && conf->headers_source == prev->headers_source) | |
4548 { | |
4549 prev->headers = conf->headers; | |
4550 prev->host_set = conf->host_set; | |
4551 } | |
4552 | |
4553 return NGX_CONF_OK; | |
4554 } | |
4555 | |
4556 | |
4557 static ngx_int_t | |
4558 ngx_http_grpc_init_headers(ngx_conf_t *cf, ngx_http_grpc_loc_conf_t *conf, | |
4559 ngx_http_grpc_headers_t *headers, ngx_keyval_t *default_headers) | |
4560 { | |
4561 u_char *p; | |
4562 size_t size; | |
4563 uintptr_t *code; | |
4564 ngx_uint_t i; | |
4565 ngx_array_t headers_names, headers_merged; | |
4566 ngx_keyval_t *src, *s, *h; | |
4567 ngx_hash_key_t *hk; | |
4568 ngx_hash_init_t hash; | |
4569 ngx_http_script_compile_t sc; | |
4570 ngx_http_script_copy_code_t *copy; | |
4571 | |
4572 if (headers->hash.buckets) { | |
4573 return NGX_OK; | |
4574 } | |
4575 | |
4576 if (ngx_array_init(&headers_names, cf->temp_pool, 4, sizeof(ngx_hash_key_t)) | |
4577 != NGX_OK) | |
4578 { | |
4579 return NGX_ERROR; | |
4580 } | |
4581 | |
4582 if (ngx_array_init(&headers_merged, cf->temp_pool, 4, sizeof(ngx_keyval_t)) | |
4583 != NGX_OK) | |
4584 { | |
4585 return NGX_ERROR; | |
4586 } | |
4587 | |
4588 headers->lengths = ngx_array_create(cf->pool, 64, 1); | |
4589 if (headers->lengths == NULL) { | |
4590 return NGX_ERROR; | |
4591 } | |
4592 | |
4593 headers->values = ngx_array_create(cf->pool, 512, 1); | |
4594 if (headers->values == NULL) { | |
4595 return NGX_ERROR; | |
4596 } | |
4597 | |
4598 if (conf->headers_source) { | |
4599 | |
4600 src = conf->headers_source->elts; | |
4601 for (i = 0; i < conf->headers_source->nelts; i++) { | |
4602 | |
4603 if (src[i].key.len == 4 | |
4604 && ngx_strncasecmp(src[i].key.data, (u_char *) "Host", 4) == 0) | |
4605 { | |
4606 conf->host_set = 1; | |
4607 } | |
4608 | |
4609 s = ngx_array_push(&headers_merged); | |
4610 if (s == NULL) { | |
4611 return NGX_ERROR; | |
4612 } | |
4613 | |
4614 *s = src[i]; | |
4615 } | |
4616 } | |
4617 | |
4618 h = default_headers; | |
4619 | |
4620 while (h->key.len) { | |
4621 | |
4622 src = headers_merged.elts; | |
4623 for (i = 0; i < headers_merged.nelts; i++) { | |
4624 if (ngx_strcasecmp(h->key.data, src[i].key.data) == 0) { | |
4625 goto next; | |
4626 } | |
4627 } | |
4628 | |
4629 s = ngx_array_push(&headers_merged); | |
4630 if (s == NULL) { | |
4631 return NGX_ERROR; | |
4632 } | |
4633 | |
4634 *s = *h; | |
4635 | |
4636 next: | |
4637 | |
4638 h++; | |
4639 } | |
4640 | |
4641 | |
4642 src = headers_merged.elts; | |
4643 for (i = 0; i < headers_merged.nelts; i++) { | |
4644 | |
4645 hk = ngx_array_push(&headers_names); | |
4646 if (hk == NULL) { | |
4647 return NGX_ERROR; | |
4648 } | |
4649 | |
4650 hk->key = src[i].key; | |
4651 hk->key_hash = ngx_hash_key_lc(src[i].key.data, src[i].key.len); | |
4652 hk->value = (void *) 1; | |
4653 | |
4654 if (src[i].value.len == 0) { | |
4655 continue; | |
4656 } | |
4657 | |
4658 copy = ngx_array_push_n(headers->lengths, | |
4659 sizeof(ngx_http_script_copy_code_t)); | |
4660 if (copy == NULL) { | |
4661 return NGX_ERROR; | |
4662 } | |
4663 | |
7271
9e25a5380a21
Silenced -Wcast-function-type warnings (closes #1546).
Sergey Kandaurov <pluknet@nginx.com>
parents:
7249
diff
changeset
|
4664 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
|
4665 ngx_http_script_copy_len_code; |
7233 | 4666 copy->len = src[i].key.len; |
4667 | |
4668 size = (sizeof(ngx_http_script_copy_code_t) | |
4669 + src[i].key.len + sizeof(uintptr_t) - 1) | |
4670 & ~(sizeof(uintptr_t) - 1); | |
4671 | |
4672 copy = ngx_array_push_n(headers->values, size); | |
4673 if (copy == NULL) { | |
4674 return NGX_ERROR; | |
4675 } | |
4676 | |
4677 copy->code = ngx_http_script_copy_code; | |
4678 copy->len = src[i].key.len; | |
4679 | |
4680 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t); | |
4681 ngx_memcpy(p, src[i].key.data, src[i].key.len); | |
4682 | |
4683 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
4684 | |
4685 sc.cf = cf; | |
4686 sc.source = &src[i].value; | |
4687 sc.flushes = &headers->flushes; | |
4688 sc.lengths = &headers->lengths; | |
4689 sc.values = &headers->values; | |
4690 | |
4691 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
4692 return NGX_ERROR; | |
4693 } | |
4694 | |
4695 code = ngx_array_push_n(headers->lengths, sizeof(uintptr_t)); | |
4696 if (code == NULL) { | |
4697 return NGX_ERROR; | |
4698 } | |
4699 | |
4700 *code = (uintptr_t) NULL; | |
4701 | |
4702 code = ngx_array_push_n(headers->values, sizeof(uintptr_t)); | |
4703 if (code == NULL) { | |
4704 return NGX_ERROR; | |
4705 } | |
4706 | |
4707 *code = (uintptr_t) NULL; | |
4708 } | |
4709 | |
4710 code = ngx_array_push_n(headers->lengths, sizeof(uintptr_t)); | |
4711 if (code == NULL) { | |
4712 return NGX_ERROR; | |
4713 } | |
4714 | |
4715 *code = (uintptr_t) NULL; | |
4716 | |
4717 | |
4718 hash.hash = &headers->hash; | |
4719 hash.key = ngx_hash_key_lc; | |
4720 hash.max_size = 512; | |
4721 hash.bucket_size = 64; | |
4722 hash.name = "grpc_headers_hash"; | |
4723 hash.pool = cf->pool; | |
4724 hash.temp_pool = NULL; | |
4725 | |
4726 return ngx_hash_init(&hash, headers_names.elts, headers_names.nelts); | |
4727 } | |
4728 | |
4729 | |
4730 static char * | |
4731 ngx_http_grpc_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
4732 { | |
4733 ngx_http_grpc_loc_conf_t *glcf = conf; | |
4734 | |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4735 size_t add; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4736 ngx_str_t *value, *url; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4737 ngx_url_t u; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4738 ngx_uint_t n; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4739 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
|
4740 ngx_http_script_compile_t sc; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4741 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4742 if (glcf->upstream.upstream || glcf->grpc_lengths) { |
7233 | 4743 return "is duplicate"; |
4744 } | |
4745 | |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4746 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
|
4747 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4748 clcf->handler = ngx_http_grpc_handler; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4749 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4750 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
|
4751 clcf->auto_redirect = 1; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4752 } |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4753 |
7233 | 4754 value = cf->args->elts; |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4755 |
7233 | 4756 url = &value[1]; |
4757 | |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4758 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
|
4759 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4760 if (n) { |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4761 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4762 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
|
4763 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4764 sc.cf = cf; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4765 sc.source = url; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4766 sc.lengths = &glcf->grpc_lengths; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4767 sc.values = &glcf->grpc_values; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4768 sc.variables = n; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4769 sc.complete_lengths = 1; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4770 sc.complete_values = 1; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4771 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4772 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
|
4773 return NGX_CONF_ERROR; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4774 } |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4775 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4776 #if (NGX_HTTP_SSL) |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4777 glcf->ssl = 1; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4778 #endif |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4779 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4780 return NGX_CONF_OK; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4781 } |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4782 |
7233 | 4783 if (ngx_strncasecmp(url->data, (u_char *) "grpc://", 7) == 0) { |
4784 add = 7; | |
4785 | |
4786 } else if (ngx_strncasecmp(url->data, (u_char *) "grpcs://", 8) == 0) { | |
4787 | |
4788 #if (NGX_HTTP_SSL) | |
4789 glcf->ssl = 1; | |
4790 | |
4791 add = 8; | |
4792 #else | |
4793 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
4794 "grpcs protocol requires SSL support"); | |
4795 return NGX_CONF_ERROR; | |
4796 #endif | |
4797 | |
4798 } else { | |
4799 add = 0; | |
4800 } | |
4801 | |
4802 ngx_memzero(&u, sizeof(ngx_url_t)); | |
4803 | |
4804 u.url.len = url->len - add; | |
4805 u.url.data = url->data + add; | |
4806 u.no_resolve = 1; | |
4807 | |
4808 glcf->upstream.upstream = ngx_http_upstream_add(cf, &u, 0); | |
4809 if (glcf->upstream.upstream == NULL) { | |
4810 return NGX_CONF_ERROR; | |
4811 } | |
4812 | |
4813 if (u.family != AF_UNIX) { | |
4814 | |
4815 if (u.no_port) { | |
4816 glcf->host = u.host; | |
4817 | |
4818 } else { | |
4819 glcf->host.len = u.host.len + 1 + u.port_text.len; | |
4820 glcf->host.data = u.host.data; | |
4821 } | |
4822 | |
4823 } else { | |
4824 ngx_str_set(&glcf->host, "localhost"); | |
4825 } | |
4826 | |
4827 return NGX_CONF_OK; | |
4828 } | |
4829 | |
4830 | |
4831 #if (NGX_HTTP_SSL) | |
4832 | |
4833 static char * | |
4834 ngx_http_grpc_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
4835 { | |
4836 ngx_http_grpc_loc_conf_t *glcf = conf; | |
4837 | |
4838 ngx_str_t *value; | |
4839 | |
4840 if (glcf->ssl_passwords != NGX_CONF_UNSET_PTR) { | |
4841 return "is duplicate"; | |
4842 } | |
4843 | |
4844 value = cf->args->elts; | |
4845 | |
4846 glcf->ssl_passwords = ngx_ssl_read_password_file(cf, &value[1]); | |
4847 | |
4848 if (glcf->ssl_passwords == NULL) { | |
4849 return NGX_CONF_ERROR; | |
4850 } | |
4851 | |
4852 return NGX_CONF_OK; | |
4853 } | |
4854 | |
4855 | |
8183
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4856 static char * |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4857 ngx_http_grpc_ssl_conf_command_check(ngx_conf_t *cf, void *post, void *data) |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4858 { |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4859 #ifndef SSL_CONF_FLAG_FILE |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4860 return "is not supported on this platform"; |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4861 #endif |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4862 |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4863 return NGX_CONF_OK; |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4864 } |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4865 |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4866 |
7233 | 4867 static ngx_int_t |
4868 ngx_http_grpc_set_ssl(ngx_conf_t *cf, ngx_http_grpc_loc_conf_t *glcf) | |
4869 { | |
4870 ngx_pool_cleanup_t *cln; | |
4871 | |
4872 glcf->upstream.ssl = ngx_pcalloc(cf->pool, sizeof(ngx_ssl_t)); | |
4873 if (glcf->upstream.ssl == NULL) { | |
4874 return NGX_ERROR; | |
4875 } | |
4876 | |
4877 glcf->upstream.ssl->log = cf->log; | |
4878 | |
4879 if (ngx_ssl_create(glcf->upstream.ssl, glcf->ssl_protocols, NULL) | |
4880 != NGX_OK) | |
4881 { | |
4882 return NGX_ERROR; | |
4883 } | |
4884 | |
4885 cln = ngx_pool_cleanup_add(cf->pool, 0); | |
4886 if (cln == NULL) { | |
7473
8981dbb12254
SSL: fixed potential leak on memory allocation errors.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7379
diff
changeset
|
4887 ngx_ssl_cleanup_ctx(glcf->upstream.ssl); |
7233 | 4888 return NGX_ERROR; |
4889 } | |
4890 | |
4891 cln->handler = ngx_ssl_cleanup_ctx; | |
4892 cln->data = glcf->upstream.ssl; | |
4893 | |
4894 if (glcf->ssl_certificate.len) { | |
4895 | |
4896 if (glcf->ssl_certificate_key.len == 0) { | |
4897 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
4898 "no \"grpc_ssl_certificate_key\" is defined " | |
4899 "for certificate \"%V\"", &glcf->ssl_certificate); | |
4900 return NGX_ERROR; | |
4901 } | |
4902 | |
4903 if (ngx_ssl_certificate(cf, glcf->upstream.ssl, &glcf->ssl_certificate, | |
4904 &glcf->ssl_certificate_key, glcf->ssl_passwords) | |
4905 != NGX_OK) | |
4906 { | |
4907 return NGX_ERROR; | |
4908 } | |
4909 } | |
4910 | |
4911 if (ngx_ssl_ciphers(cf, glcf->upstream.ssl, &glcf->ssl_ciphers, 0) | |
4912 != NGX_OK) | |
4913 { | |
4914 return NGX_ERROR; | |
4915 } | |
4916 | |
4917 if (glcf->upstream.ssl_verify) { | |
4918 if (glcf->ssl_trusted_certificate.len == 0) { | |
4919 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
4920 "no grpc_ssl_trusted_certificate for grpc_ssl_verify"); | |
4921 return NGX_ERROR; | |
4922 } | |
4923 | |
4924 if (ngx_ssl_trusted_certificate(cf, glcf->upstream.ssl, | |
4925 &glcf->ssl_trusted_certificate, | |
4926 glcf->ssl_verify_depth) | |
4927 != NGX_OK) | |
4928 { | |
4929 return NGX_ERROR; | |
4930 } | |
4931 | |
4932 if (ngx_ssl_crl(cf, glcf->upstream.ssl, &glcf->ssl_crl) != NGX_OK) { | |
4933 return NGX_ERROR; | |
4934 } | |
4935 } | |
4936 | |
7320
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4937 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
|
4938 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
|
4939 != NGX_OK) |
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4940 { |
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4941 return NGX_ERROR; |
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4942 } |
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4943 |
7233 | 4944 #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation |
4945 | |
4946 if (SSL_CTX_set_alpn_protos(glcf->upstream.ssl->ctx, | |
4947 (u_char *) "\x02h2", 3) | |
4948 != 0) | |
4949 { | |
4950 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, | |
4951 "SSL_CTX_set_alpn_protos() failed"); | |
4952 return NGX_ERROR; | |
4953 } | |
4954 | |
4955 #endif | |
4956 | |
8183
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4957 if (ngx_ssl_conf_commands(cf, glcf->upstream.ssl, glcf->ssl_conf_commands) |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4958 != NGX_OK) |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4959 { |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4960 return NGX_ERROR; |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4961 } |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4962 |
7233 | 4963 return NGX_OK; |
4964 } | |
4965 | |
4966 #endif |