Mercurial > hg > nginx-quic
comparison src/http/modules/ngx_http_scgi_module.c @ 3637:d656caa72ec9
ngx_http_scgi_module
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 18 Jun 2010 15:51:14 +0000 |
parents | |
children | 12bd9e26fadb |
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3636:446f611b0a79 | 3637:d656caa72ec9 |
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1 | |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4 * Copyright (C) Manlio Perillo (manlio.perillo@gmail.com) | |
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_http_upstream_conf_t upstream; | |
15 | |
16 ngx_array_t *flushes; | |
17 ngx_array_t *params_len; | |
18 ngx_array_t *params; | |
19 ngx_array_t *params_source; | |
20 | |
21 ngx_hash_t headers_hash; | |
22 ngx_uint_t header_params; | |
23 | |
24 ngx_array_t *scgi_lengths; | |
25 ngx_array_t *scgi_values; | |
26 | |
27 #if (NGX_HTTP_CACHE) | |
28 ngx_http_complex_value_t cache_key; | |
29 #endif | |
30 } ngx_http_scgi_loc_conf_t; | |
31 | |
32 | |
33 static ngx_int_t ngx_http_scgi_eval(ngx_http_request_t *r, | |
34 ngx_http_scgi_loc_conf_t *scf); | |
35 static ngx_int_t ngx_http_scgi_create_request(ngx_http_request_t *r); | |
36 static ngx_int_t ngx_http_scgi_reinit_request(ngx_http_request_t *r); | |
37 static ngx_int_t ngx_http_scgi_process_status_line(ngx_http_request_t *r); | |
38 static ngx_int_t ngx_http_scgi_process_header(ngx_http_request_t *r); | |
39 static ngx_int_t ngx_http_scgi_process_header(ngx_http_request_t *r); | |
40 static void ngx_http_scgi_abort_request(ngx_http_request_t *r); | |
41 static void ngx_http_scgi_finalize_request(ngx_http_request_t *r, ngx_int_t rc); | |
42 | |
43 static void *ngx_http_scgi_create_loc_conf(ngx_conf_t *cf); | |
44 static char *ngx_http_scgi_merge_loc_conf(ngx_conf_t *cf, void *parent, | |
45 void *child); | |
46 | |
47 static char *ngx_http_scgi_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); | |
48 static char *ngx_http_scgi_store(ngx_conf_t *cf, ngx_command_t *cmd, | |
49 void *conf); | |
50 | |
51 #if (NGX_HTTP_CACHE) | |
52 static ngx_int_t ngx_http_scgi_create_key(ngx_http_request_t *r); | |
53 static char *ngx_http_scgi_cache(ngx_conf_t *cf, ngx_command_t *cmd, | |
54 void *conf); | |
55 static char *ngx_http_scgi_cache_key(ngx_conf_t *cf, ngx_command_t *cmd, | |
56 void *conf); | |
57 #endif | |
58 | |
59 | |
60 static ngx_conf_bitmask_t ngx_http_scgi_next_upstream_masks[] = { | |
61 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR }, | |
62 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT }, | |
63 { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER }, | |
64 { ngx_string("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500 }, | |
65 { ngx_string("http_503"), NGX_HTTP_UPSTREAM_FT_HTTP_503 }, | |
66 { ngx_string("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404 }, | |
67 { ngx_string("updating"), NGX_HTTP_UPSTREAM_FT_UPDATING }, | |
68 { ngx_string("off"), NGX_HTTP_UPSTREAM_FT_OFF }, | |
69 { ngx_null_string, 0 } | |
70 }; | |
71 | |
72 | |
73 static ngx_conf_bitmask_t ngx_http_scgi_ignore_headers_masks[] = { | |
74 { ngx_string("X-Accel-Redirect"), NGX_HTTP_UPSTREAM_IGN_XA_REDIRECT }, | |
75 { ngx_string("X-Accel-Expires"), NGX_HTTP_UPSTREAM_IGN_XA_EXPIRES }, | |
76 { ngx_string("Expires"), NGX_HTTP_UPSTREAM_IGN_EXPIRES }, | |
77 { ngx_string("Cache-Control"), NGX_HTTP_UPSTREAM_IGN_CACHE_CONTROL }, | |
78 { ngx_null_string, 0 } | |
79 }; | |
80 | |
81 | |
82 ngx_module_t ngx_http_scgi_module; | |
83 | |
84 | |
85 static ngx_command_t ngx_http_scgi_commands[] = { | |
86 | |
87 { ngx_string("scgi_pass"), | |
88 NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1, | |
89 ngx_http_scgi_pass, | |
90 NGX_HTTP_LOC_CONF_OFFSET, | |
91 0, | |
92 NULL }, | |
93 | |
94 { ngx_string("scgi_store"), | |
95 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
96 ngx_http_scgi_store, | |
97 NGX_HTTP_LOC_CONF_OFFSET, | |
98 0, | |
99 NULL }, | |
100 | |
101 { ngx_string("scgi_store_access"), | |
102 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE123, | |
103 ngx_conf_set_access_slot, | |
104 NGX_HTTP_LOC_CONF_OFFSET, | |
105 offsetof(ngx_http_scgi_loc_conf_t, upstream.store_access), | |
106 NULL }, | |
107 | |
108 { ngx_string("scgi_ignore_client_abort"), | |
109 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
110 ngx_conf_set_flag_slot, | |
111 NGX_HTTP_LOC_CONF_OFFSET, | |
112 offsetof(ngx_http_scgi_loc_conf_t, upstream.ignore_client_abort), | |
113 NULL }, | |
114 | |
115 { ngx_string("scgi_bind"), | |
116 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
117 ngx_http_upstream_bind_set_slot, | |
118 NGX_HTTP_LOC_CONF_OFFSET, | |
119 offsetof(ngx_http_scgi_loc_conf_t, upstream.local), | |
120 NULL }, | |
121 | |
122 { ngx_string("scgi_connect_timeout"), | |
123 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
124 ngx_conf_set_msec_slot, | |
125 NGX_HTTP_LOC_CONF_OFFSET, | |
126 offsetof(ngx_http_scgi_loc_conf_t, upstream.connect_timeout), | |
127 NULL }, | |
128 | |
129 { ngx_string("scgi_send_timeout"), | |
130 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
131 ngx_conf_set_msec_slot, | |
132 NGX_HTTP_LOC_CONF_OFFSET, | |
133 offsetof(ngx_http_scgi_loc_conf_t, upstream.send_timeout), | |
134 NULL }, | |
135 | |
136 { ngx_string("scgi_buffer_size"), | |
137 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
138 ngx_conf_set_size_slot, | |
139 NGX_HTTP_LOC_CONF_OFFSET, | |
140 offsetof(ngx_http_scgi_loc_conf_t, upstream.buffer_size), | |
141 NULL }, | |
142 | |
143 { ngx_string("scgi_pass_request_headers"), | |
144 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
145 ngx_conf_set_flag_slot, | |
146 NGX_HTTP_LOC_CONF_OFFSET, | |
147 offsetof(ngx_http_scgi_loc_conf_t, upstream.pass_request_headers), | |
148 NULL }, | |
149 | |
150 { ngx_string("scgi_pass_request_body"), | |
151 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
152 ngx_conf_set_flag_slot, | |
153 NGX_HTTP_LOC_CONF_OFFSET, | |
154 offsetof(ngx_http_scgi_loc_conf_t, upstream.pass_request_body), | |
155 NULL }, | |
156 | |
157 { ngx_string("scgi_intercept_errors"), | |
158 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
159 ngx_conf_set_flag_slot, | |
160 NGX_HTTP_LOC_CONF_OFFSET, | |
161 offsetof(ngx_http_scgi_loc_conf_t, upstream.intercept_errors), | |
162 NULL }, | |
163 | |
164 { ngx_string("scgi_read_timeout"), | |
165 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
166 ngx_conf_set_msec_slot, | |
167 NGX_HTTP_LOC_CONF_OFFSET, | |
168 offsetof(ngx_http_scgi_loc_conf_t, upstream.read_timeout), | |
169 NULL }, | |
170 | |
171 { ngx_string("scgi_buffers"), | |
172 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, | |
173 ngx_conf_set_bufs_slot, | |
174 NGX_HTTP_LOC_CONF_OFFSET, | |
175 offsetof(ngx_http_scgi_loc_conf_t, upstream.bufs), | |
176 NULL }, | |
177 | |
178 { ngx_string("scgi_busy_buffers_size"), | |
179 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
180 ngx_conf_set_size_slot, | |
181 NGX_HTTP_LOC_CONF_OFFSET, | |
182 offsetof(ngx_http_scgi_loc_conf_t, upstream.busy_buffers_size_conf), | |
183 NULL }, | |
184 | |
185 #if (NGX_HTTP_CACHE) | |
186 | |
187 { ngx_string("scgi_cache"), | |
188 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
189 ngx_http_scgi_cache, | |
190 NGX_HTTP_LOC_CONF_OFFSET, | |
191 0, | |
192 NULL }, | |
193 | |
194 { ngx_string("scgi_cache_key"), | |
195 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
196 ngx_http_scgi_cache_key, | |
197 NGX_HTTP_LOC_CONF_OFFSET, | |
198 0, | |
199 NULL }, | |
200 | |
201 { ngx_string("scgi_cache_path"), | |
202 NGX_HTTP_MAIN_CONF|NGX_CONF_2MORE, | |
203 ngx_http_file_cache_set_slot, | |
204 0, | |
205 0, | |
206 &ngx_http_scgi_module }, | |
207 | |
208 { ngx_string("scgi_no_cache"), | |
209 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
210 ngx_http_no_cache_set_slot, | |
211 NGX_HTTP_LOC_CONF_OFFSET, | |
212 offsetof(ngx_http_scgi_loc_conf_t, upstream.no_cache), | |
213 NULL }, | |
214 | |
215 { ngx_string("scgi_cache_valid"), | |
216 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
217 ngx_http_file_cache_valid_set_slot, | |
218 NGX_HTTP_LOC_CONF_OFFSET, | |
219 offsetof(ngx_http_scgi_loc_conf_t, upstream.cache_valid), | |
220 NULL }, | |
221 | |
222 { ngx_string("scgi_cache_min_uses"), | |
223 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
224 ngx_conf_set_num_slot, | |
225 NGX_HTTP_LOC_CONF_OFFSET, | |
226 offsetof(ngx_http_scgi_loc_conf_t, upstream.cache_min_uses), | |
227 NULL }, | |
228 | |
229 { ngx_string("scgi_cache_use_stale"), | |
230 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
231 ngx_conf_set_bitmask_slot, | |
232 NGX_HTTP_LOC_CONF_OFFSET, | |
233 offsetof(ngx_http_scgi_loc_conf_t, upstream.cache_use_stale), | |
234 &ngx_http_scgi_next_upstream_masks }, | |
235 | |
236 { ngx_string("scgi_cache_methods"), | |
237 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
238 ngx_conf_set_bitmask_slot, | |
239 NGX_HTTP_LOC_CONF_OFFSET, | |
240 offsetof(ngx_http_scgi_loc_conf_t, upstream.cache_methods), | |
241 &ngx_http_upstream_cache_method_mask }, | |
242 | |
243 #endif | |
244 | |
245 { ngx_string("scgi_temp_path"), | |
246 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1234, | |
247 ngx_conf_set_path_slot, | |
248 NGX_HTTP_LOC_CONF_OFFSET, | |
249 offsetof(ngx_http_scgi_loc_conf_t, upstream.temp_path), | |
250 NULL }, | |
251 | |
252 { ngx_string("scgi_max_temp_file_size"), | |
253 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
254 ngx_conf_set_size_slot, | |
255 NGX_HTTP_LOC_CONF_OFFSET, | |
256 offsetof(ngx_http_scgi_loc_conf_t, upstream.max_temp_file_size_conf), | |
257 NULL }, | |
258 | |
259 { ngx_string("scgi_temp_file_write_size"), | |
260 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
261 ngx_conf_set_size_slot, | |
262 NGX_HTTP_LOC_CONF_OFFSET, | |
263 offsetof(ngx_http_scgi_loc_conf_t, upstream.temp_file_write_size_conf), | |
264 NULL }, | |
265 | |
266 { ngx_string("scgi_next_upstream"), | |
267 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
268 ngx_conf_set_bitmask_slot, | |
269 NGX_HTTP_LOC_CONF_OFFSET, | |
270 offsetof(ngx_http_scgi_loc_conf_t, upstream.next_upstream), | |
271 &ngx_http_scgi_next_upstream_masks }, | |
272 | |
273 { ngx_string("scgi_param"), | |
274 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, | |
275 ngx_conf_set_keyval_slot, | |
276 NGX_HTTP_LOC_CONF_OFFSET, | |
277 offsetof(ngx_http_scgi_loc_conf_t, params_source), | |
278 NULL }, | |
279 | |
280 { ngx_string("scgi_pass_header"), | |
281 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
282 ngx_conf_set_str_array_slot, | |
283 NGX_HTTP_LOC_CONF_OFFSET, | |
284 offsetof(ngx_http_scgi_loc_conf_t, upstream.pass_headers), | |
285 NULL }, | |
286 | |
287 { ngx_string("scgi_hide_header"), | |
288 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
289 ngx_conf_set_str_array_slot, | |
290 NGX_HTTP_LOC_CONF_OFFSET, | |
291 offsetof(ngx_http_scgi_loc_conf_t, upstream.hide_headers), | |
292 NULL }, | |
293 | |
294 { ngx_string("scgi_ignore_headers"), | |
295 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
296 ngx_conf_set_bitmask_slot, | |
297 NGX_HTTP_LOC_CONF_OFFSET, | |
298 offsetof(ngx_http_scgi_loc_conf_t, upstream.ignore_headers), | |
299 &ngx_http_scgi_ignore_headers_masks }, | |
300 | |
301 ngx_null_command | |
302 }; | |
303 | |
304 | |
305 static ngx_http_module_t ngx_http_scgi_module_ctx = { | |
306 NULL, /* preconfiguration */ | |
307 NULL, /* postconfiguration */ | |
308 | |
309 NULL, /* create main configuration */ | |
310 NULL, /* init main configuration */ | |
311 | |
312 NULL, /* create server configuration */ | |
313 NULL, /* merge server configuration */ | |
314 | |
315 ngx_http_scgi_create_loc_conf, /* create location configuration */ | |
316 ngx_http_scgi_merge_loc_conf /* merge location configuration */ | |
317 }; | |
318 | |
319 | |
320 ngx_module_t ngx_http_scgi_module = { | |
321 NGX_MODULE_V1, | |
322 &ngx_http_scgi_module_ctx, /* module context */ | |
323 ngx_http_scgi_commands, /* module directives */ | |
324 NGX_HTTP_MODULE, /* module type */ | |
325 NULL, /* init master */ | |
326 NULL, /* init module */ | |
327 NULL, /* init process */ | |
328 NULL, /* init thread */ | |
329 NULL, /* exit thread */ | |
330 NULL, /* exit process */ | |
331 NULL, /* exit master */ | |
332 NGX_MODULE_V1_PADDING | |
333 }; | |
334 | |
335 | |
336 static ngx_str_t ngx_http_scgi_hide_headers[] = { | |
337 ngx_string("Status"), | |
338 ngx_string("X-Accel-Expires"), | |
339 ngx_string("X-Accel-Redirect"), | |
340 ngx_string("X-Accel-Limit-Rate"), | |
341 ngx_string("X-Accel-Buffering"), | |
342 ngx_string("X-Accel-Charset"), | |
343 ngx_null_string | |
344 }; | |
345 | |
346 | |
347 #if (NGX_HTTP_CACHE) | |
348 | |
349 static ngx_str_t ngx_http_scgi_hide_cache_headers[] = { | |
350 ngx_string("Status"), | |
351 ngx_string("X-Accel-Expires"), | |
352 ngx_string("X-Accel-Redirect"), | |
353 ngx_string("X-Accel-Limit-Rate"), | |
354 ngx_string("X-Accel-Buffering"), | |
355 ngx_string("X-Accel-Charset"), | |
356 ngx_string("Set-Cookie"), | |
357 ngx_string("P3P"), | |
358 ngx_null_string | |
359 }; | |
360 | |
361 | |
362 static ngx_keyval_t ngx_http_scgi_cache_headers[] = { | |
363 { ngx_string("HTTP_IF_MODIFIED_SINCE"), ngx_string("") }, | |
364 { ngx_string("HTTP_IF_UNMODIFIED_SINCE"), ngx_string("") }, | |
365 { ngx_string("HTTP_IF_NONE_MATCH"), ngx_string("") }, | |
366 { ngx_string("HTTP_IF_MATCH"), ngx_string("") }, | |
367 { ngx_string("HTTP_RANGE"), ngx_string("") }, | |
368 { ngx_string("HTTP_IF_RANGE"), ngx_string("") }, | |
369 { ngx_null_string, ngx_null_string } | |
370 }; | |
371 | |
372 #endif | |
373 | |
374 | |
375 static ngx_path_init_t ngx_http_scgi_temp_path = { | |
376 ngx_string(NGX_HTTP_SCGI_TEMP_PATH), { 1, 2, 0 } | |
377 }; | |
378 | |
379 | |
380 static ngx_int_t | |
381 ngx_http_scgi_handler(ngx_http_request_t *r) | |
382 { | |
383 ngx_int_t rc; | |
384 ngx_http_status_t *status; | |
385 ngx_http_upstream_t *u; | |
386 ngx_http_scgi_loc_conf_t *scf; | |
387 | |
388 if (r->subrequest_in_memory) { | |
389 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, | |
390 "ngx_http_scgi_module does not support " | |
391 "subrequests in memory"); | |
392 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
393 } | |
394 | |
395 if (ngx_http_upstream_create(r) != NGX_OK) { | |
396 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
397 } | |
398 | |
399 status = ngx_pcalloc(r->pool, sizeof(ngx_http_status_t)); | |
400 if (status == NULL) { | |
401 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
402 } | |
403 | |
404 ngx_http_set_ctx(r, status, ngx_http_scgi_module); | |
405 | |
406 scf = ngx_http_get_module_loc_conf(r, ngx_http_scgi_module); | |
407 | |
408 if (scf->scgi_lengths) { | |
409 if (ngx_http_scgi_eval(r, scf) != NGX_OK) { | |
410 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
411 } | |
412 } | |
413 | |
414 u = r->upstream; | |
415 | |
416 ngx_str_set(&u->schema, "scgi://"); | |
417 u->output.tag = (ngx_buf_tag_t) &ngx_http_scgi_module; | |
418 | |
419 u->conf = &scf->upstream; | |
420 | |
421 #if (NGX_HTTP_CACHE) | |
422 u->create_key = ngx_http_scgi_create_key; | |
423 #endif | |
424 u->create_request = ngx_http_scgi_create_request; | |
425 u->reinit_request = ngx_http_scgi_reinit_request; | |
426 u->process_header = ngx_http_scgi_process_status_line; | |
427 u->abort_request = ngx_http_scgi_abort_request; | |
428 u->finalize_request = ngx_http_scgi_finalize_request; | |
429 | |
430 u->buffering = 1; | |
431 | |
432 u->pipe = ngx_pcalloc(r->pool, sizeof(ngx_event_pipe_t)); | |
433 if (u->pipe == NULL) { | |
434 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
435 } | |
436 | |
437 u->pipe->input_filter = ngx_event_pipe_copy_input_filter; | |
438 u->pipe->input_ctx = r; | |
439 | |
440 rc = ngx_http_read_client_request_body(r, ngx_http_upstream_init); | |
441 | |
442 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) { | |
443 return rc; | |
444 } | |
445 | |
446 return NGX_DONE; | |
447 } | |
448 | |
449 | |
450 static ngx_int_t | |
451 ngx_http_scgi_eval(ngx_http_request_t *r, ngx_http_scgi_loc_conf_t * scf) | |
452 { | |
453 ngx_url_t url; | |
454 ngx_http_upstream_t *u; | |
455 | |
456 ngx_memzero(&url, sizeof(ngx_url_t)); | |
457 | |
458 if (ngx_http_script_run(r, &url.url, scf->scgi_lengths->elts, 0, | |
459 scf->scgi_values->elts) | |
460 == NULL) | |
461 { | |
462 return NGX_ERROR; | |
463 } | |
464 | |
465 url.no_resolve = 1; | |
466 | |
467 if (ngx_parse_url(r->pool, &url) != NGX_OK) { | |
468 if (url.err) { | |
469 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
470 "%s in upstream \"%V\"", url.err, &url.url); | |
471 } | |
472 | |
473 return NGX_ERROR; | |
474 } | |
475 | |
476 if (url.no_port) { | |
477 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
478 "no port in upstream \"%V\"", &url.url); | |
479 return NGX_ERROR; | |
480 } | |
481 | |
482 u = r->upstream; | |
483 | |
484 u->resolved = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_resolved_t)); | |
485 if (u->resolved == NULL) { | |
486 return NGX_ERROR; | |
487 } | |
488 | |
489 if (url.addrs && url.addrs[0].sockaddr) { | |
490 u->resolved->sockaddr = url.addrs[0].sockaddr; | |
491 u->resolved->socklen = url.addrs[0].socklen; | |
492 u->resolved->naddrs = 1; | |
493 u->resolved->host = url.addrs[0].name; | |
494 | |
495 } else { | |
496 u->resolved->host = url.host; | |
497 u->resolved->port = url.port; | |
498 } | |
499 | |
500 return NGX_OK; | |
501 } | |
502 | |
503 | |
504 #if (NGX_HTTP_CACHE) | |
505 | |
506 static ngx_int_t | |
507 ngx_http_scgi_create_key(ngx_http_request_t *r) | |
508 { | |
509 ngx_str_t *key; | |
510 ngx_http_scgi_loc_conf_t *scf; | |
511 | |
512 key = ngx_array_push(&r->cache->keys); | |
513 if (key == NULL) { | |
514 return NGX_ERROR; | |
515 } | |
516 | |
517 scf = ngx_http_get_module_loc_conf(r, ngx_http_scgi_module); | |
518 | |
519 if (ngx_http_complex_value(r, &scf->cache_key, key) != NGX_OK) { | |
520 return NGX_ERROR; | |
521 } | |
522 | |
523 return NGX_OK; | |
524 } | |
525 | |
526 #endif | |
527 | |
528 | |
529 static ngx_int_t | |
530 ngx_http_scgi_create_request(ngx_http_request_t *r) | |
531 { | |
532 u_char ch, *key, *val, *lowcase_key; | |
533 size_t len, allocated; | |
534 ngx_buf_t *b; | |
535 ngx_str_t *content_length; | |
536 ngx_uint_t i, n, hash, header_params; | |
537 ngx_chain_t *cl, *body; | |
538 ngx_list_part_t *part; | |
539 ngx_table_elt_t *header, **ignored; | |
540 ngx_http_script_code_pt code; | |
541 ngx_http_script_engine_t e, le; | |
542 ngx_http_scgi_loc_conf_t *scf; | |
543 ngx_http_script_len_code_pt lcode; | |
544 static ngx_str_t zero = ngx_string("0"); | |
545 | |
546 content_length = r->headers_in.content_length ? | |
547 &r->headers_in.content_length->value : &zero; | |
548 | |
549 len = sizeof("CONTENT_LENGTH") + content_length->len + 1; | |
550 | |
551 header_params = 0; | |
552 ignored = NULL; | |
553 | |
554 scf = ngx_http_get_module_loc_conf(r, ngx_http_scgi_module); | |
555 | |
556 if (scf->params_len) { | |
557 ngx_memzero(&le, sizeof(ngx_http_script_engine_t)); | |
558 | |
559 ngx_http_script_flush_no_cacheable_variables(r, scf->flushes); | |
560 le.flushed = 1; | |
561 | |
562 le.ip = scf->params_len->elts; | |
563 le.request = r; | |
564 | |
565 while (*(uintptr_t *) le.ip) { | |
566 | |
567 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
568 len += lcode(&le); | |
569 | |
570 while (*(uintptr_t *) le.ip) { | |
571 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
572 len += lcode(&le) + 1; | |
573 } | |
574 le.ip += sizeof(uintptr_t); | |
575 } | |
576 } | |
577 | |
578 if (scf->upstream.pass_request_headers) { | |
579 | |
580 allocated = 0; | |
581 lowcase_key = NULL; | |
582 | |
583 if (scf->header_params) { | |
584 ignored = ngx_palloc(r->pool, scf->header_params * sizeof(void *)); | |
585 if (ignored == NULL) { | |
586 return NGX_ERROR; | |
587 } | |
588 } | |
589 | |
590 part = &r->headers_in.headers.part; | |
591 header = part->elts; | |
592 | |
593 for (i = 0; /* void */; i++) { | |
594 | |
595 if (i >= part->nelts) { | |
596 if (part->next == NULL) { | |
597 break; | |
598 } | |
599 | |
600 part = part->next; | |
601 header = part->elts; | |
602 i = 0; | |
603 } | |
604 | |
605 if (scf->header_params) { | |
606 if (allocated < header[i].key.len) { | |
607 allocated = header[i].key.len + 16; | |
608 lowcase_key = ngx_pnalloc(r->pool, allocated); | |
609 if (lowcase_key == NULL) { | |
610 return NGX_ERROR; | |
611 } | |
612 } | |
613 | |
614 hash = 0; | |
615 | |
616 for (n = 0; n < header[i].key.len; n++) { | |
617 ch = header[i].key.data[n]; | |
618 | |
619 if (ch >= 'A' && ch <= 'Z') { | |
620 ch |= 0x20; | |
621 | |
622 } else if (ch == '-') { | |
623 ch = '_'; | |
624 } | |
625 | |
626 hash = ngx_hash(hash, ch); | |
627 lowcase_key[n] = ch; | |
628 } | |
629 | |
630 if (ngx_hash_find(&scf->headers_hash, hash, lowcase_key, n)) { | |
631 ignored[header_params++] = &header[i]; | |
632 continue; | |
633 } | |
634 } | |
635 | |
636 len += sizeof("HTTP_") - 1 + header[i].key.len + 1 | |
637 + header[i].value.len + 1; | |
638 } | |
639 } | |
640 | |
641 /* netstring: "length:" + packet + "," */ | |
642 | |
643 b = ngx_create_temp_buf(r->pool, NGX_SIZE_T_LEN + 1 + len + 1); | |
644 if (b == NULL) { | |
645 return NGX_ERROR; | |
646 } | |
647 | |
648 cl = ngx_alloc_chain_link(r->pool); | |
649 if (cl == NULL) { | |
650 return NGX_ERROR; | |
651 } | |
652 | |
653 cl->buf = b; | |
654 | |
655 b->last = ngx_snprintf(b->last, | |
656 NGX_SIZE_T_LEN + 1 + sizeof("CONTENT_LENGTH") | |
657 + NGX_OFF_T_LEN + 1, | |
658 "%ui:CONTENT_LENGTH%Z%V%Z", | |
659 len, content_length); | |
660 | |
661 if (scf->params_len) { | |
662 ngx_memzero(&e, sizeof(ngx_http_script_engine_t)); | |
663 | |
664 e.ip = scf->params->elts; | |
665 e.pos = b->last; | |
666 e.request = r; | |
667 e.flushed = 1; | |
668 | |
669 while (*(uintptr_t *) e.ip) { | |
670 | |
671 #if (NGX_DEBUG) | |
672 key = e.pos; | |
673 #endif | |
674 code = *(ngx_http_script_code_pt *) e.ip; | |
675 code((ngx_http_script_engine_t *) & e); | |
676 | |
677 #if (NGX_DEBUG) | |
678 val = e.pos; | |
679 #endif | |
680 while (*(uintptr_t *) e.ip) { | |
681 code = *(ngx_http_script_code_pt *) e.ip; | |
682 code((ngx_http_script_engine_t *) &e); | |
683 } | |
684 *e.pos++ = '\0'; | |
685 e.ip += sizeof(uintptr_t); | |
686 | |
687 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
688 "scgi param: \"%s: %s\"", key, val); | |
689 } | |
690 | |
691 b->last = e.pos; | |
692 } | |
693 | |
694 if (scf->upstream.pass_request_headers) { | |
695 | |
696 part = &r->headers_in.headers.part; | |
697 header = part->elts; | |
698 | |
699 for (i = 0; /* void */; i++) { | |
700 | |
701 if (i >= part->nelts) { | |
702 if (part->next == NULL) { | |
703 break; | |
704 } | |
705 | |
706 part = part->next; | |
707 header = part->elts; | |
708 i = 0; | |
709 } | |
710 | |
711 for (n = 0; n < header_params; n++) { | |
712 if (&header[i] == ignored[n]) { | |
713 goto next; | |
714 } | |
715 } | |
716 | |
717 key = b->last; | |
718 b->last = ngx_cpymem(key, "HTTP_", sizeof("HTTP_") - 1); | |
719 | |
720 for (n = 0; n < header[i].key.len; n++) { | |
721 ch = header[i].key.data[n]; | |
722 | |
723 if (ch >= 'a' && ch <= 'z') { | |
724 ch &= ~0x20; | |
725 | |
726 } else if (ch == '-') { | |
727 ch = '_'; | |
728 } | |
729 | |
730 *b->last++ = ch; | |
731 } | |
732 | |
733 *b->last++ = (u_char) 0; | |
734 | |
735 val = b->last; | |
736 b->last = ngx_copy(val, header[i].value.data, header[i].value.len); | |
737 *b->last++ = (u_char) 0; | |
738 | |
739 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
740 "scgi param: \"%s: %s\"", key, val); | |
741 | |
742 next: | |
743 | |
744 continue; | |
745 } | |
746 } | |
747 | |
748 *b->last++ = (u_char) ','; | |
749 | |
750 if (scf->upstream.pass_request_body) { | |
751 body = r->upstream->request_bufs; | |
752 r->upstream->request_bufs = cl; | |
753 | |
754 while (body) { | |
755 b = ngx_alloc_buf(r->pool); | |
756 if (b == NULL) { | |
757 return NGX_ERROR; | |
758 } | |
759 | |
760 ngx_memcpy(b, body->buf, sizeof(ngx_buf_t)); | |
761 | |
762 cl->next = ngx_alloc_chain_link(r->pool); | |
763 if (cl->next == NULL) { | |
764 return NGX_ERROR; | |
765 } | |
766 | |
767 cl = cl->next; | |
768 cl->buf = b; | |
769 | |
770 body = body->next; | |
771 } | |
772 | |
773 } else { | |
774 r->upstream->request_bufs = cl; | |
775 } | |
776 | |
777 cl->next = NULL; | |
778 | |
779 return NGX_OK; | |
780 } | |
781 | |
782 | |
783 static ngx_int_t | |
784 ngx_http_scgi_reinit_request(ngx_http_request_t *r) | |
785 { | |
786 ngx_http_status_t *status; | |
787 | |
788 status = ngx_http_get_module_ctx(r, ngx_http_scgi_module); | |
789 | |
790 if (status == NULL) { | |
791 return NGX_OK; | |
792 } | |
793 | |
794 status->code = 0; | |
795 status->count = 0; | |
796 status->start = NULL; | |
797 status->end = NULL; | |
798 | |
799 r->upstream->process_header = ngx_http_scgi_process_status_line; | |
800 | |
801 return NGX_OK; | |
802 } | |
803 | |
804 | |
805 static ngx_int_t | |
806 ngx_http_scgi_process_status_line(ngx_http_request_t *r) | |
807 { | |
808 size_t len; | |
809 ngx_int_t rc; | |
810 ngx_http_status_t *status; | |
811 ngx_http_upstream_t *u; | |
812 | |
813 status = ngx_http_get_module_ctx(r, ngx_http_scgi_module); | |
814 | |
815 if (status == NULL) { | |
816 return NGX_ERROR; | |
817 } | |
818 | |
819 u = r->upstream; | |
820 | |
821 rc = ngx_http_parse_status_line(r, &u->buffer, status); | |
822 | |
823 if (rc == NGX_AGAIN) { | |
824 return rc; | |
825 } | |
826 | |
827 if (rc == NGX_ERROR) { | |
828 | |
829 r->http_version = NGX_HTTP_VERSION_9; | |
830 | |
831 u->process_header = ngx_http_scgi_process_header; | |
832 | |
833 return ngx_http_scgi_process_header(r); | |
834 } | |
835 | |
836 if (u->state) { | |
837 u->state->status = status->code; | |
838 } | |
839 | |
840 u->headers_in.status_n = status->code; | |
841 | |
842 len = status->end - status->start; | |
843 u->headers_in.status_line.len = len; | |
844 | |
845 u->headers_in.status_line.data = ngx_pnalloc(r->pool, len); | |
846 if (u->headers_in.status_line.data == NULL) { | |
847 return NGX_ERROR; | |
848 } | |
849 | |
850 ngx_memcpy(u->headers_in.status_line.data, status->start, len); | |
851 | |
852 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
853 "http scgi status %ui \"%V\"", | |
854 u->headers_in.status_n, &u->headers_in.status_line); | |
855 | |
856 u->process_header = ngx_http_scgi_process_header; | |
857 | |
858 return ngx_http_scgi_process_header(r); | |
859 } | |
860 | |
861 | |
862 static ngx_int_t | |
863 ngx_http_scgi_process_header(ngx_http_request_t *r) | |
864 { | |
865 ngx_str_t *status_line; | |
866 ngx_int_t rc, status; | |
867 ngx_table_elt_t *h; | |
868 ngx_http_upstream_t *u; | |
869 ngx_http_upstream_header_t *hh; | |
870 ngx_http_upstream_main_conf_t *umcf; | |
871 | |
872 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module); | |
873 | |
874 for ( ;; ) { | |
875 | |
876 rc = ngx_http_parse_header_line(r, &r->upstream->buffer, 1); | |
877 | |
878 if (rc == NGX_OK) { | |
879 | |
880 /* a header line has been parsed successfully */ | |
881 | |
882 h = ngx_list_push(&r->upstream->headers_in.headers); | |
883 if (h == NULL) { | |
884 return NGX_ERROR; | |
885 } | |
886 | |
887 h->hash = r->header_hash; | |
888 | |
889 h->key.len = r->header_name_end - r->header_name_start; | |
890 h->value.len = r->header_end - r->header_start; | |
891 | |
892 h->key.data = ngx_pnalloc(r->pool, | |
893 h->key.len + 1 + h->value.len + 1 | |
894 + h->key.len); | |
895 if (h->key.data == NULL) { | |
896 return NGX_ERROR; | |
897 } | |
898 | |
899 h->value.data = h->key.data + h->key.len + 1; | |
900 h->lowcase_key = h->key.data + h->key.len + 1 + h->value.len + 1; | |
901 | |
902 ngx_cpystrn(h->key.data, r->header_name_start, h->key.len + 1); | |
903 ngx_cpystrn(h->value.data, r->header_start, h->value.len + 1); | |
904 | |
905 if (h->key.len == r->lowcase_index) { | |
906 ngx_memcpy(h->lowcase_key, r->lowcase_header, h->key.len); | |
907 | |
908 } else { | |
909 ngx_strlow(h->lowcase_key, h->key.data, h->key.len); | |
910 } | |
911 | |
912 hh = ngx_hash_find(&umcf->headers_in_hash, h->hash, | |
913 h->lowcase_key, h->key.len); | |
914 | |
915 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) { | |
916 return NGX_ERROR; | |
917 } | |
918 | |
919 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
920 "http scgi header: \"%V: %V\"", &h->key, &h->value); | |
921 | |
922 continue; | |
923 } | |
924 | |
925 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { | |
926 | |
927 /* a whole header has been parsed successfully */ | |
928 | |
929 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
930 "http scgi header done"); | |
931 | |
932 if (r->http_version > NGX_HTTP_VERSION_9) { | |
933 return NGX_OK; | |
934 } | |
935 | |
936 u = r->upstream; | |
937 | |
938 if (u->headers_in.status) { | |
939 status_line = &u->headers_in.status->value; | |
940 | |
941 status = ngx_atoi(status_line->data, 3); | |
942 if (status == NGX_ERROR) { | |
943 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
944 "upstream sent invalid status \"%V\"", | |
945 status_line); | |
946 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
947 } | |
948 | |
949 r->http_version = NGX_HTTP_VERSION_10; | |
950 u->headers_in.status_n = status; | |
951 u->headers_in.status_line = *status_line; | |
952 | |
953 } else if (u->headers_in.location) { | |
954 r->http_version = NGX_HTTP_VERSION_10; | |
955 u->headers_in.status_n = 302; | |
956 ngx_str_set(&u->headers_in.status_line, | |
957 "302 Moved Temporarily"); | |
958 | |
959 } else { | |
960 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
961 "upstream sent neither valid HTTP/1.0 header " | |
962 "nor \"Status\" header line"); | |
963 u->headers_in.status_n = 200; | |
964 ngx_str_set(&u->headers_in.status_line, "200 OK"); | |
965 } | |
966 | |
967 if (u->state) { | |
968 u->state->status = u->headers_in.status_n; | |
969 } | |
970 | |
971 return NGX_OK; | |
972 } | |
973 | |
974 if (rc == NGX_AGAIN) { | |
975 return NGX_AGAIN; | |
976 } | |
977 | |
978 /* there was error while a header line parsing */ | |
979 | |
980 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
981 "upstream sent invalid header"); | |
982 | |
983 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
984 } | |
985 } | |
986 | |
987 | |
988 static void | |
989 ngx_http_scgi_abort_request(ngx_http_request_t *r) | |
990 { | |
991 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
992 "abort http scgi request"); | |
993 | |
994 return; | |
995 } | |
996 | |
997 | |
998 static void | |
999 ngx_http_scgi_finalize_request(ngx_http_request_t *r, ngx_int_t rc) | |
1000 { | |
1001 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1002 "finalize http scgi request"); | |
1003 | |
1004 return; | |
1005 } | |
1006 | |
1007 | |
1008 static void * | |
1009 ngx_http_scgi_create_loc_conf(ngx_conf_t *cf) | |
1010 { | |
1011 ngx_http_scgi_loc_conf_t *conf; | |
1012 | |
1013 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_scgi_loc_conf_t)); | |
1014 if (conf == NULL) { | |
1015 return NULL; | |
1016 } | |
1017 | |
1018 conf->upstream.store = NGX_CONF_UNSET; | |
1019 conf->upstream.store_access = NGX_CONF_UNSET_UINT; | |
1020 conf->upstream.buffering = NGX_CONF_UNSET; | |
1021 conf->upstream.ignore_client_abort = NGX_CONF_UNSET; | |
1022 | |
1023 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC; | |
1024 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC; | |
1025 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC; | |
1026 | |
1027 conf->upstream.send_lowat = NGX_CONF_UNSET_SIZE; | |
1028 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE; | |
1029 | |
1030 conf->upstream.busy_buffers_size_conf = NGX_CONF_UNSET_SIZE; | |
1031 conf->upstream.max_temp_file_size_conf = NGX_CONF_UNSET_SIZE; | |
1032 conf->upstream.temp_file_write_size_conf = NGX_CONF_UNSET_SIZE; | |
1033 | |
1034 conf->upstream.pass_request_headers = NGX_CONF_UNSET; | |
1035 conf->upstream.pass_request_body = NGX_CONF_UNSET; | |
1036 | |
1037 #if (NGX_HTTP_CACHE) | |
1038 conf->upstream.cache = NGX_CONF_UNSET_PTR; | |
1039 conf->upstream.cache_min_uses = NGX_CONF_UNSET_UINT; | |
1040 conf->upstream.cache_valid = NGX_CONF_UNSET_PTR; | |
1041 #endif | |
1042 | |
1043 conf->upstream.hide_headers = NGX_CONF_UNSET_PTR; | |
1044 conf->upstream.pass_headers = NGX_CONF_UNSET_PTR; | |
1045 | |
1046 conf->upstream.intercept_errors = NGX_CONF_UNSET; | |
1047 | |
1048 /* "scgi_cyclic_temp_file" is disabled */ | |
1049 conf->upstream.cyclic_temp_file = 0; | |
1050 | |
1051 return conf; | |
1052 } | |
1053 | |
1054 | |
1055 static char * | |
1056 ngx_http_scgi_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
1057 { | |
1058 ngx_http_scgi_loc_conf_t *prev = parent; | |
1059 ngx_http_scgi_loc_conf_t *conf = child; | |
1060 | |
1061 u_char *p; | |
1062 size_t size; | |
1063 uintptr_t *code; | |
1064 ngx_str_t *hide; | |
1065 ngx_uint_t i; | |
1066 ngx_array_t headers_names; | |
1067 ngx_keyval_t *src; | |
1068 ngx_hash_key_t *hk; | |
1069 ngx_hash_init_t hash; | |
1070 ngx_http_script_compile_t sc; | |
1071 ngx_http_script_copy_code_t *copy; | |
1072 | |
1073 if (conf->upstream.store != 0) { | |
1074 ngx_conf_merge_value(conf->upstream.store, prev->upstream.store, 0); | |
1075 | |
1076 if (conf->upstream.store_lengths == NULL) { | |
1077 conf->upstream.store_lengths = prev->upstream.store_lengths; | |
1078 conf->upstream.store_values = prev->upstream.store_values; | |
1079 } | |
1080 } | |
1081 | |
1082 ngx_conf_merge_uint_value(conf->upstream.store_access, | |
1083 prev->upstream.store_access, 0600); | |
1084 | |
1085 ngx_conf_merge_value(conf->upstream.buffering, | |
1086 prev->upstream.buffering, 1); | |
1087 | |
1088 ngx_conf_merge_value(conf->upstream.ignore_client_abort, | |
1089 prev->upstream.ignore_client_abort, 0); | |
1090 | |
1091 ngx_conf_merge_msec_value(conf->upstream.connect_timeout, | |
1092 prev->upstream.connect_timeout, 60000); | |
1093 | |
1094 ngx_conf_merge_msec_value(conf->upstream.send_timeout, | |
1095 prev->upstream.send_timeout, 60000); | |
1096 | |
1097 ngx_conf_merge_msec_value(conf->upstream.read_timeout, | |
1098 prev->upstream.read_timeout, 60000); | |
1099 | |
1100 ngx_conf_merge_size_value(conf->upstream.send_lowat, | |
1101 prev->upstream.send_lowat, 0); | |
1102 | |
1103 ngx_conf_merge_size_value(conf->upstream.buffer_size, | |
1104 prev->upstream.buffer_size, | |
1105 (size_t) ngx_pagesize); | |
1106 | |
1107 | |
1108 ngx_conf_merge_bufs_value(conf->upstream.bufs, prev->upstream.bufs, | |
1109 8, ngx_pagesize); | |
1110 | |
1111 if (conf->upstream.bufs.num < 2) { | |
1112 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
1113 "there must be at least 2 \"scgi_buffers\""); | |
1114 return NGX_CONF_ERROR; | |
1115 } | |
1116 | |
1117 | |
1118 size = conf->upstream.buffer_size; | |
1119 if (size < conf->upstream.bufs.size) { | |
1120 size = conf->upstream.bufs.size; | |
1121 } | |
1122 | |
1123 | |
1124 ngx_conf_merge_size_value(conf->upstream.busy_buffers_size_conf, | |
1125 prev->upstream.busy_buffers_size_conf, | |
1126 NGX_CONF_UNSET_SIZE); | |
1127 | |
1128 if (conf->upstream.busy_buffers_size_conf == NGX_CONF_UNSET_SIZE) { | |
1129 conf->upstream.busy_buffers_size = 2 * size; | |
1130 } else { | |
1131 conf->upstream.busy_buffers_size = | |
1132 conf->upstream.busy_buffers_size_conf; | |
1133 } | |
1134 | |
1135 if (conf->upstream.busy_buffers_size < size) { | |
1136 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
1137 "\"scgi_busy_buffers_size\" must be equal or bigger " | |
1138 "than maximum of the value of \"scgi_buffer_size\" and " | |
1139 "one of the \"scgi_buffers\""); | |
1140 | |
1141 return NGX_CONF_ERROR; | |
1142 } | |
1143 | |
1144 if (conf->upstream.busy_buffers_size | |
1145 > (conf->upstream.bufs.num - 1) * conf->upstream.bufs.size) | |
1146 { | |
1147 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
1148 "\"scgi_busy_buffers_size\" must be less than " | |
1149 "the size of all \"scgi_buffers\" minus one buffer"); | |
1150 | |
1151 return NGX_CONF_ERROR; | |
1152 } | |
1153 | |
1154 | |
1155 ngx_conf_merge_size_value(conf->upstream.temp_file_write_size_conf, | |
1156 prev->upstream.temp_file_write_size_conf, | |
1157 NGX_CONF_UNSET_SIZE); | |
1158 | |
1159 if (conf->upstream.temp_file_write_size_conf == NGX_CONF_UNSET_SIZE) { | |
1160 conf->upstream.temp_file_write_size = 2 * size; | |
1161 } else { | |
1162 conf->upstream.temp_file_write_size = | |
1163 conf->upstream.temp_file_write_size_conf; | |
1164 } | |
1165 | |
1166 if (conf->upstream.temp_file_write_size < size) { | |
1167 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
1168 "\"scgi_temp_file_write_size\" must be equal or bigger than " | |
1169 "maximum of the value of \"scgi_buffer_size\" and " | |
1170 "one of the \"scgi_buffers\""); | |
1171 | |
1172 return NGX_CONF_ERROR; | |
1173 } | |
1174 | |
1175 | |
1176 ngx_conf_merge_size_value(conf->upstream.max_temp_file_size_conf, | |
1177 prev->upstream.max_temp_file_size_conf, | |
1178 NGX_CONF_UNSET_SIZE); | |
1179 | |
1180 if (conf->upstream.max_temp_file_size_conf == NGX_CONF_UNSET_SIZE) { | |
1181 conf->upstream.max_temp_file_size = 1024 * 1024 * 1024; | |
1182 } else { | |
1183 conf->upstream.max_temp_file_size = | |
1184 conf->upstream.max_temp_file_size_conf; | |
1185 } | |
1186 | |
1187 if (conf->upstream.max_temp_file_size != 0 | |
1188 && conf->upstream.max_temp_file_size < size) { | |
1189 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
1190 "\"scgi_max_temp_file_size\" must be equal to zero to disable " | |
1191 "the temporary files usage or must be equal or bigger than " | |
1192 "maximum of the value of \"scgi_buffer_size\" and " | |
1193 "one of the \"scgi_buffers\""); | |
1194 | |
1195 return NGX_CONF_ERROR; | |
1196 } | |
1197 | |
1198 | |
1199 ngx_conf_merge_bitmask_value(conf->upstream.ignore_headers, | |
1200 prev->upstream.ignore_headers, | |
1201 NGX_CONF_BITMASK_SET); | |
1202 | |
1203 | |
1204 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream, | |
1205 prev->upstream.next_upstream, | |
1206 (NGX_CONF_BITMASK_SET | |
1207 |NGX_HTTP_UPSTREAM_FT_ERROR | |
1208 |NGX_HTTP_UPSTREAM_FT_TIMEOUT)); | |
1209 | |
1210 if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) { | |
1211 conf->upstream.next_upstream = NGX_CONF_BITMASK_SET | |
1212 |NGX_HTTP_UPSTREAM_FT_OFF; | |
1213 } | |
1214 | |
1215 if (ngx_conf_merge_path_value(cf, &conf->upstream.temp_path, | |
1216 prev->upstream.temp_path, | |
1217 &ngx_http_scgi_temp_path) | |
1218 != NGX_OK) | |
1219 { | |
1220 return NGX_CONF_ERROR; | |
1221 } | |
1222 | |
1223 #if (NGX_HTTP_CACHE) | |
1224 | |
1225 ngx_conf_merge_ptr_value(conf->upstream.cache, | |
1226 prev->upstream.cache, NULL); | |
1227 | |
1228 if (conf->upstream.cache && conf->upstream.cache->data == NULL) { | |
1229 ngx_shm_zone_t *shm_zone; | |
1230 | |
1231 shm_zone = conf->upstream.cache; | |
1232 | |
1233 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
1234 "\"scgi_cache\" zone \"%V\" is unknown", | |
1235 &shm_zone->shm.name); | |
1236 | |
1237 return NGX_CONF_ERROR; | |
1238 } | |
1239 | |
1240 ngx_conf_merge_uint_value(conf->upstream.cache_min_uses, | |
1241 prev->upstream.cache_min_uses, 1); | |
1242 | |
1243 ngx_conf_merge_bitmask_value(conf->upstream.cache_use_stale, | |
1244 prev->upstream.cache_use_stale, | |
1245 (NGX_CONF_BITMASK_SET | |
1246 |NGX_HTTP_UPSTREAM_FT_OFF)); | |
1247 | |
1248 if (conf->upstream.cache_use_stale & NGX_HTTP_UPSTREAM_FT_OFF) { | |
1249 conf->upstream.cache_use_stale = NGX_CONF_BITMASK_SET | |
1250 |NGX_HTTP_UPSTREAM_FT_OFF; | |
1251 } | |
1252 | |
1253 if (conf->upstream.cache_methods == 0) { | |
1254 conf->upstream.cache_methods = prev->upstream.cache_methods; | |
1255 } | |
1256 | |
1257 conf->upstream.cache_methods |= NGX_HTTP_GET|NGX_HTTP_HEAD; | |
1258 | |
1259 ngx_conf_merge_ptr_value(conf->upstream.no_cache, | |
1260 prev->upstream.no_cache, NULL); | |
1261 | |
1262 ngx_conf_merge_ptr_value(conf->upstream.cache_valid, | |
1263 prev->upstream.cache_valid, NULL); | |
1264 | |
1265 if (conf->cache_key.value.data == NULL) { | |
1266 conf->cache_key = prev->cache_key; | |
1267 } | |
1268 | |
1269 #endif | |
1270 | |
1271 ngx_conf_merge_value(conf->upstream.pass_request_headers, | |
1272 prev->upstream.pass_request_headers, 1); | |
1273 ngx_conf_merge_value(conf->upstream.pass_request_body, | |
1274 prev->upstream.pass_request_body, 1); | |
1275 | |
1276 ngx_conf_merge_value(conf->upstream.intercept_errors, | |
1277 prev->upstream.intercept_errors, 0); | |
1278 | |
1279 hash.max_size = 512; | |
1280 hash.bucket_size = ngx_align(64, ngx_cacheline_size); | |
1281 hash.name = "scgi_hide_headers_hash"; | |
1282 | |
1283 #if (NGX_HTTP_CACHE) | |
1284 | |
1285 hide = conf->upstream.cache ? ngx_http_scgi_hide_cache_headers: | |
1286 ngx_http_scgi_hide_headers; | |
1287 #else | |
1288 | |
1289 hide = ngx_http_scgi_hide_headers; | |
1290 | |
1291 #endif | |
1292 | |
1293 if (ngx_http_upstream_hide_headers_hash(cf, &conf->upstream, | |
1294 &prev->upstream, hide, &hash) | |
1295 != NGX_OK) | |
1296 { | |
1297 return NGX_CONF_ERROR; | |
1298 } | |
1299 | |
1300 if (conf->upstream.upstream == NULL) { | |
1301 conf->upstream.upstream = prev->upstream.upstream; | |
1302 } | |
1303 | |
1304 if (conf->scgi_lengths == NULL) { | |
1305 conf->scgi_lengths = prev->scgi_lengths; | |
1306 conf->scgi_values = prev->scgi_values; | |
1307 } | |
1308 | |
1309 if (conf->params_source == NULL) { | |
1310 conf->flushes = prev->flushes; | |
1311 conf->params_len = prev->params_len; | |
1312 conf->params = prev->params; | |
1313 conf->params_source = prev->params_source; | |
1314 conf->headers_hash = prev->headers_hash; | |
1315 | |
1316 #if (NGX_HTTP_CACHE) | |
1317 | |
1318 if (conf->params_source == NULL) { | |
1319 | |
1320 if ((conf->upstream.cache == NULL) | |
1321 == (prev->upstream.cache == NULL)) | |
1322 { | |
1323 return NGX_CONF_OK; | |
1324 } | |
1325 | |
1326 /* 6 is a number of ngx_http_scgi_cache_headers entries */ | |
1327 conf->params_source = ngx_array_create(cf->pool, 6, | |
1328 sizeof(ngx_keyval_t)); | |
1329 if (conf->params_source == NULL) { | |
1330 return NGX_CONF_ERROR; | |
1331 } | |
1332 } | |
1333 #else | |
1334 | |
1335 if (conf->params_source == NULL) { | |
1336 return NGX_CONF_OK; | |
1337 } | |
1338 | |
1339 #endif | |
1340 } | |
1341 | |
1342 conf->params_len = ngx_array_create(cf->pool, 64, 1); | |
1343 if (conf->params_len == NULL) { | |
1344 return NGX_CONF_ERROR; | |
1345 } | |
1346 | |
1347 conf->params = ngx_array_create(cf->pool, 512, 1); | |
1348 if (conf->params == NULL) { | |
1349 return NGX_CONF_ERROR; | |
1350 } | |
1351 | |
1352 if (ngx_array_init(&headers_names, cf->temp_pool, 4, sizeof(ngx_hash_key_t)) | |
1353 != NGX_OK) | |
1354 { | |
1355 return NGX_CONF_ERROR; | |
1356 } | |
1357 | |
1358 src = conf->params_source->elts; | |
1359 | |
1360 #if (NGX_HTTP_CACHE) | |
1361 | |
1362 if (conf->upstream.cache) { | |
1363 ngx_keyval_t *h, *s; | |
1364 | |
1365 for (h = ngx_http_scgi_cache_headers; h->key.len; h++) { | |
1366 | |
1367 for (i = 0; i < conf->params_source->nelts; i++) { | |
1368 if (ngx_strcasecmp(h->key.data, src[i].key.data) == 0) { | |
1369 goto next; | |
1370 } | |
1371 } | |
1372 | |
1373 s = ngx_array_push(conf->params_source); | |
1374 if (s == NULL) { | |
1375 return NGX_CONF_ERROR; | |
1376 } | |
1377 | |
1378 *s = *h; | |
1379 | |
1380 src = conf->params_source->elts; | |
1381 | |
1382 next: | |
1383 | |
1384 h++; | |
1385 } | |
1386 } | |
1387 | |
1388 #endif | |
1389 | |
1390 for (i = 0; i < conf->params_source->nelts; i++) { | |
1391 | |
1392 if (src[i].key.len > sizeof("HTTP_") - 1 | |
1393 && ngx_strncmp(src[i].key.data, "HTTP_", sizeof("HTTP_") - 1) == 0) | |
1394 { | |
1395 hk = ngx_array_push(&headers_names); | |
1396 if (hk == NULL) { | |
1397 return NGX_CONF_ERROR; | |
1398 } | |
1399 | |
1400 hk->key.len = src[i].key.len - 5; | |
1401 hk->key.data = src[i].key.data + 5; | |
1402 hk->key_hash = ngx_hash_key_lc(hk->key.data, hk->key.len); | |
1403 hk->value = (void *) 1; | |
1404 | |
1405 if (src[i].value.len == 0) { | |
1406 continue; | |
1407 } | |
1408 } | |
1409 | |
1410 copy = ngx_array_push_n(conf->params_len, | |
1411 sizeof(ngx_http_script_copy_code_t)); | |
1412 if (copy == NULL) { | |
1413 return NGX_CONF_ERROR; | |
1414 } | |
1415 | |
1416 copy->code = (ngx_http_script_code_pt) ngx_http_script_copy_len_code; | |
1417 copy->len = src[i].key.len + 1; | |
1418 | |
1419 | |
1420 size = (sizeof(ngx_http_script_copy_code_t) | |
1421 + src[i].key.len + 1 + sizeof(uintptr_t) - 1) | |
1422 & ~(sizeof(uintptr_t) - 1); | |
1423 | |
1424 copy = ngx_array_push_n(conf->params, size); | |
1425 if (copy == NULL) { | |
1426 return NGX_CONF_ERROR; | |
1427 } | |
1428 | |
1429 copy->code = ngx_http_script_copy_code; | |
1430 copy->len = src[i].key.len + 1; | |
1431 | |
1432 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t); | |
1433 (void) ngx_cpystrn(p, src[i].key.data, src[i].key.len + 1); | |
1434 | |
1435 | |
1436 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
1437 | |
1438 sc.cf = cf; | |
1439 sc.source = &src[i].value; | |
1440 sc.flushes = &conf->flushes; | |
1441 sc.lengths = &conf->params_len; | |
1442 sc.values = &conf->params; | |
1443 | |
1444 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
1445 return NGX_CONF_ERROR; | |
1446 } | |
1447 | |
1448 code = ngx_array_push_n(conf->params_len, sizeof(uintptr_t)); | |
1449 if (code == NULL) { | |
1450 return NGX_CONF_ERROR; | |
1451 } | |
1452 | |
1453 *code = (uintptr_t) NULL; | |
1454 | |
1455 | |
1456 code = ngx_array_push_n(conf->params, sizeof(uintptr_t)); | |
1457 if (code == NULL) { | |
1458 return NGX_CONF_ERROR; | |
1459 } | |
1460 | |
1461 *code = (uintptr_t) NULL; | |
1462 } | |
1463 | |
1464 code = ngx_array_push_n(conf->params_len, sizeof(uintptr_t)); | |
1465 if (code == NULL) { | |
1466 return NGX_CONF_ERROR; | |
1467 } | |
1468 | |
1469 *code = (uintptr_t) NULL; | |
1470 | |
1471 code = ngx_array_push_n(conf->params, sizeof(uintptr_t)); | |
1472 if (code == NULL) { | |
1473 return NGX_CONF_ERROR; | |
1474 } | |
1475 | |
1476 *code = (uintptr_t) NULL; | |
1477 | |
1478 conf->header_params = headers_names.nelts; | |
1479 | |
1480 hash.hash = &conf->headers_hash; | |
1481 hash.key = ngx_hash_key_lc; | |
1482 hash.max_size = 512; | |
1483 hash.bucket_size = 64; | |
1484 hash.name = "scgi_params_hash"; | |
1485 hash.pool = cf->pool; | |
1486 hash.temp_pool = NULL; | |
1487 | |
1488 if (ngx_hash_init(&hash, headers_names.elts, headers_names.nelts) != NGX_OK) | |
1489 { | |
1490 return NGX_CONF_ERROR; | |
1491 } | |
1492 | |
1493 return NGX_CONF_OK; | |
1494 } | |
1495 | |
1496 | |
1497 static char * | |
1498 ngx_http_scgi_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
1499 { | |
1500 ngx_http_scgi_loc_conf_t *scf = conf; | |
1501 | |
1502 ngx_url_t u; | |
1503 ngx_str_t *value, *url; | |
1504 ngx_uint_t n; | |
1505 ngx_http_core_loc_conf_t *clcf; | |
1506 ngx_http_script_compile_t sc; | |
1507 | |
1508 if (scf->upstream.upstream || scf->scgi_lengths) { | |
1509 return "is duplicate"; | |
1510 } | |
1511 | |
1512 clcf = ngx_http_conf_get_module_loc_conf (cf, ngx_http_core_module); | |
1513 clcf->handler = ngx_http_scgi_handler; | |
1514 | |
1515 value = cf->args->elts; | |
1516 | |
1517 url = &value[1]; | |
1518 | |
1519 n = ngx_http_script_variables_count(url); | |
1520 | |
1521 if (n) { | |
1522 | |
1523 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
1524 | |
1525 sc.cf = cf; | |
1526 sc.source = url; | |
1527 sc.lengths = &scf->scgi_lengths; | |
1528 sc.values = &scf->scgi_values; | |
1529 sc.variables = n; | |
1530 sc.complete_lengths = 1; | |
1531 sc.complete_values = 1; | |
1532 | |
1533 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
1534 return NGX_CONF_ERROR; | |
1535 } | |
1536 | |
1537 return NGX_CONF_OK; | |
1538 } | |
1539 | |
1540 ngx_memzero(&u, sizeof(ngx_url_t)); | |
1541 | |
1542 u.url = value[1]; | |
1543 u.no_resolve = 1; | |
1544 | |
1545 scf->upstream.upstream = ngx_http_upstream_add(cf, &u, 0); | |
1546 if (scf->upstream.upstream == NULL) { | |
1547 return NGX_CONF_ERROR; | |
1548 } | |
1549 | |
1550 if (clcf->name.data[clcf->name.len - 1] == '/') { | |
1551 clcf->auto_redirect = 1; | |
1552 } | |
1553 | |
1554 return NGX_CONF_OK; | |
1555 } | |
1556 | |
1557 | |
1558 static char * | |
1559 ngx_http_scgi_store(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
1560 { | |
1561 ngx_http_scgi_loc_conf_t *scf = conf; | |
1562 | |
1563 ngx_str_t *value; | |
1564 ngx_http_script_compile_t sc; | |
1565 | |
1566 if (scf->upstream.store != NGX_CONF_UNSET || scf->upstream.store_lengths) { | |
1567 return "is duplicate"; | |
1568 } | |
1569 | |
1570 value = cf->args->elts; | |
1571 | |
1572 if (ngx_strcmp(value[1].data, "off") == 0) { | |
1573 scf->upstream.store = 0; | |
1574 return NGX_CONF_OK; | |
1575 } | |
1576 | |
1577 #if (NGX_HTTP_CACHE) | |
1578 | |
1579 if (scf->upstream.cache != NGX_CONF_UNSET_PTR | |
1580 && scf->upstream.cache != NULL) | |
1581 { | |
1582 return "is incompatible with \"scgi_cache\""; | |
1583 } | |
1584 | |
1585 #endif | |
1586 | |
1587 if (ngx_strcmp(value[1].data, "on") == 0) { | |
1588 scf->upstream.store = 1; | |
1589 return NGX_CONF_OK; | |
1590 } | |
1591 | |
1592 /* include the terminating '\0' into script */ | |
1593 value[1].len++; | |
1594 | |
1595 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
1596 | |
1597 sc.cf = cf; | |
1598 sc.source = &value[1]; | |
1599 sc.lengths = &scf->upstream.store_lengths; | |
1600 sc.values = &scf->upstream.store_values; | |
1601 sc.variables = ngx_http_script_variables_count(&value[1]);; | |
1602 sc.complete_lengths = 1; | |
1603 sc.complete_values = 1; | |
1604 | |
1605 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
1606 return NGX_CONF_ERROR; | |
1607 } | |
1608 | |
1609 return NGX_CONF_OK; | |
1610 } | |
1611 | |
1612 | |
1613 #if (NGX_HTTP_CACHE) | |
1614 | |
1615 static char * | |
1616 ngx_http_scgi_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
1617 { | |
1618 ngx_http_scgi_loc_conf_t *scf = conf; | |
1619 | |
1620 ngx_str_t *value; | |
1621 | |
1622 value = cf->args->elts; | |
1623 | |
1624 if (scf->upstream.cache != NGX_CONF_UNSET_PTR) { | |
1625 return "is duplicate"; | |
1626 } | |
1627 | |
1628 if (ngx_strcmp(value[1].data, "off") == 0) { | |
1629 scf->upstream.cache = NULL; | |
1630 return NGX_CONF_OK; | |
1631 } | |
1632 | |
1633 if (scf->upstream.store > 0 || scf->upstream.store_lengths) { | |
1634 return "is incompatible with \"scgi_store\""; | |
1635 } | |
1636 | |
1637 scf->upstream.cache = ngx_shared_memory_add(cf, &value[1], 0, | |
1638 &ngx_http_scgi_module); | |
1639 if (scf->upstream.cache == NULL) { | |
1640 return NGX_CONF_ERROR; | |
1641 } | |
1642 | |
1643 return NGX_CONF_OK; | |
1644 } | |
1645 | |
1646 | |
1647 static char * | |
1648 ngx_http_scgi_cache_key(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
1649 { | |
1650 ngx_http_scgi_loc_conf_t *scf = conf; | |
1651 | |
1652 ngx_str_t *value; | |
1653 ngx_http_compile_complex_value_t ccv; | |
1654 | |
1655 value = cf->args->elts; | |
1656 | |
1657 if (scf->cache_key.value.len) { | |
1658 return "is duplicate"; | |
1659 } | |
1660 | |
1661 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); | |
1662 | |
1663 ccv.cf = cf; | |
1664 ccv.value = &value[1]; | |
1665 ccv.complex_value = &scf->cache_key; | |
1666 | |
1667 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { | |
1668 return NGX_CONF_ERROR; | |
1669 } | |
1670 | |
1671 return NGX_CONF_OK; | |
1672 } | |
1673 | |
1674 #endif |