1
2 /*
3 * Copyright (C) Igor Sysoev
4 */
5
6
7 #include <ngx_config.h>
8 #include <ngx_core.h>
9 #include <ngx_http.h>
10
11
12 typedef struct {
13 ngx_http_upstream_conf_t upstream;
14
15 ngx_str_t index;
16
17 ngx_array_t *flushes;
18 ngx_array_t *params_len;
19 ngx_array_t *params;
20 ngx_array_t *params_source;
21 ngx_array_t *catch_stderr;
22
23 ngx_array_t *fastcgi_lengths;
24 ngx_array_t *fastcgi_values;
25
26 #if (NGX_HTTP_CACHE)
27 ngx_http_complex_value_t cache_key;
28 #endif
29
30 #if (NGX_PCRE)
31 ngx_regex_t *split_regex;
32 ngx_str_t split_name;
33 #endif
34 } ngx_http_fastcgi_loc_conf_t;
35
36
37 typedef enum {
38 ngx_http_fastcgi_st_version = 0,
39 ngx_http_fastcgi_st_type,
40 ngx_http_fastcgi_st_request_id_hi,
41 ngx_http_fastcgi_st_request_id_lo,
42 ngx_http_fastcgi_st_content_length_hi,
43 ngx_http_fastcgi_st_content_length_lo,
44 ngx_http_fastcgi_st_padding_length,
45 ngx_http_fastcgi_st_reserved,
46 ngx_http_fastcgi_st_data,
47 ngx_http_fastcgi_st_padding
48 } ngx_http_fastcgi_state_e;
49
50
51 typedef struct {
52 u_char *start;
53 u_char *end;
54 } ngx_http_fastcgi_split_part_t;
55
56
57 typedef struct {
58 ngx_http_fastcgi_state_e state;
59 u_char *pos;
60 u_char *last;
61 ngx_uint_t type;
62 size_t length;
63 size_t padding;
64
65 ngx_uint_t fastcgi_stdout; /* unsigned :1 */
66
67 ngx_array_t *split_parts;
68
69 ngx_str_t script_name;
70 ngx_str_t path_info;
71 } ngx_http_fastcgi_ctx_t;
72
73
74 #define NGX_HTTP_FASTCGI_RESPONDER 1
75
76 #define NGX_HTTP_FASTCGI_BEGIN_REQUEST 1
77 #define NGX_HTTP_FASTCGI_ABORT_REQUEST 2
78 #define NGX_HTTP_FASTCGI_END_REQUEST 3
79 #define NGX_HTTP_FASTCGI_PARAMS 4
80 #define NGX_HTTP_FASTCGI_STDIN 5
81 #define NGX_HTTP_FASTCGI_STDOUT 6
82 #define NGX_HTTP_FASTCGI_STDERR 7
83 #define NGX_HTTP_FASTCGI_DATA 8
84
85
86 typedef struct {
87 u_char version;
88 u_char type;
89 u_char request_id_hi;
90 u_char request_id_lo;
91 u_char content_length_hi;
92 u_char content_length_lo;
93 u_char padding_length;
94 u_char reserved;
95 } ngx_http_fastcgi_header_t;
96
97
98 typedef struct {
99 u_char role_hi;
100 u_char role_lo;
101 u_char flags;
102 u_char reserved[5];
103 } ngx_http_fastcgi_begin_request_t;
104
105
106 typedef struct {
107 u_char version;
108 u_char type;
109 u_char request_id_hi;
110 u_char request_id_lo;
111 } ngx_http_fastcgi_header_small_t;
112
113
114 typedef struct {
115 ngx_http_fastcgi_header_t h0;
116 ngx_http_fastcgi_begin_request_t br;
117 ngx_http_fastcgi_header_small_t h1;
118 } ngx_http_fastcgi_request_start_t;
119
120
121 static ngx_int_t ngx_http_fastcgi_eval(ngx_http_request_t *r,
122 ngx_http_fastcgi_loc_conf_t *flcf);
123 #if (NGX_HTTP_CACHE)
124 static ngx_int_t ngx_http_fastcgi_create_key(ngx_http_request_t *r);
125 #endif
126 static ngx_int_t ngx_http_fastcgi_create_request(ngx_http_request_t *r);
127 static ngx_int_t ngx_http_fastcgi_reinit_request(ngx_http_request_t *r);
128 static ngx_int_t ngx_http_fastcgi_process_header(ngx_http_request_t *r);
129 static ngx_int_t ngx_http_fastcgi_input_filter(ngx_event_pipe_t *p,
130 ngx_buf_t *buf);
131 static ngx_int_t ngx_http_fastcgi_process_record(ngx_http_request_t *r,
132 ngx_http_fastcgi_ctx_t *f);
133 static void ngx_http_fastcgi_abort_request(ngx_http_request_t *r);
134 static void ngx_http_fastcgi_finalize_request(ngx_http_request_t *r,
135 ngx_int_t rc);
136
137 static ngx_int_t ngx_http_fastcgi_add_variables(ngx_conf_t *cf);
138 static void *ngx_http_fastcgi_create_loc_conf(ngx_conf_t *cf);
139 static char *ngx_http_fastcgi_merge_loc_conf(ngx_conf_t *cf,
140 void *parent, void *child);
141 static ngx_int_t ngx_http_fastcgi_script_name_variable(ngx_http_request_t *r,
142 ngx_http_variable_value_t *v, uintptr_t data);
143 static ngx_int_t ngx_http_fastcgi_path_info_variable(ngx_http_request_t *r,
144 ngx_http_variable_value_t *v, uintptr_t data);
145 static ngx_http_fastcgi_ctx_t *ngx_http_fastcgi_split(ngx_http_request_t *r,
146 ngx_http_fastcgi_loc_conf_t *flcf);
147
148 static char *ngx_http_fastcgi_pass(ngx_conf_t *cf, ngx_command_t *cmd,
149 void *conf);
150 static char *ngx_http_fastcgi_split_path_info(ngx_conf_t *cf,
151 ngx_command_t *cmd, void *conf);
152 static char *ngx_http_fastcgi_store(ngx_conf_t *cf, ngx_command_t *cmd,
153 void *conf);
154 #if (NGX_HTTP_CACHE)
155 static char *ngx_http_fastcgi_cache(ngx_conf_t *cf, ngx_command_t *cmd,
156 void *conf);
157 static char *ngx_http_fastcgi_cache_key(ngx_conf_t *cf, ngx_command_t *cmd,
158 void *conf);
159 #endif
160
161 static char *ngx_http_fastcgi_lowat_check(ngx_conf_t *cf, void *post,
162 void *data);
163
164 static char *ngx_http_fastcgi_upstream_max_fails_unsupported(ngx_conf_t *cf,
165 ngx_command_t *cmd, void *conf);
166 static char *ngx_http_fastcgi_upstream_fail_timeout_unsupported(ngx_conf_t *cf,
167 ngx_command_t *cmd, void *conf);
168
169
170 static ngx_conf_post_t ngx_http_fastcgi_lowat_post =
171 { ngx_http_fastcgi_lowat_check };
172
173
174 static ngx_conf_bitmask_t ngx_http_fastcgi_next_upstream_masks[] = {
175 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR },
176 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT },
177 { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER },
178 { ngx_string("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500 },
179 { ngx_string("http_503"), NGX_HTTP_UPSTREAM_FT_HTTP_503 },
180 { ngx_string("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404 },
181 { ngx_string("updating"), NGX_HTTP_UPSTREAM_FT_UPDATING },
182 { ngx_string("off"), NGX_HTTP_UPSTREAM_FT_OFF },
183 { ngx_null_string, 0 }
184 };
185
186
187 static ngx_conf_bitmask_t ngx_http_fastcgi_ignore_headers_masks[] = {
188 { ngx_string("X-Accel-Redirect"), NGX_HTTP_UPSTREAM_IGN_XA_REDIRECT },
189 { ngx_string("X-Accel-Expires"), NGX_HTTP_UPSTREAM_IGN_XA_EXPIRES },
190 { ngx_string("Expires"), NGX_HTTP_UPSTREAM_IGN_EXPIRES },
191 { ngx_string("Cache-Control"), NGX_HTTP_UPSTREAM_IGN_CACHE_CONTROL },
192 { ngx_null_string, 0 }
193 };
194
195
196 ngx_module_t ngx_http_fastcgi_module;
197
198
199 static ngx_command_t ngx_http_fastcgi_commands[] = {
200
201 { ngx_string("fastcgi_pass"),
202 NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1,
203 ngx_http_fastcgi_pass,
204 NGX_HTTP_LOC_CONF_OFFSET,
205 0,
206 NULL },
207
208 { ngx_string("fastcgi_index"),
209 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
210 ngx_conf_set_str_slot,
211 NGX_HTTP_LOC_CONF_OFFSET,
212 offsetof(ngx_http_fastcgi_loc_conf_t, index),
213 NULL },
214
215 { ngx_string("fastcgi_split_path_info"),
216 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
217 ngx_http_fastcgi_split_path_info,
218 NGX_HTTP_LOC_CONF_OFFSET,
219 0,
220 NULL },
221
222 { ngx_string("fastcgi_store"),
223 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
224 ngx_http_fastcgi_store,
225 NGX_HTTP_LOC_CONF_OFFSET,
226 0,
227 NULL },
228
229 { ngx_string("fastcgi_store_access"),
230 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE123,
231 ngx_conf_set_access_slot,
232 NGX_HTTP_LOC_CONF_OFFSET,
233 offsetof(ngx_http_fastcgi_loc_conf_t, upstream.store_access),
234 NULL },
235
236 { ngx_string("fastcgi_ignore_client_abort"),
237 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
238 ngx_conf_set_flag_slot,
239 NGX_HTTP_LOC_CONF_OFFSET,
240 offsetof(ngx_http_fastcgi_loc_conf_t, upstream.ignore_client_abort),
241 NULL },
242
243 { ngx_string("fastcgi_connect_timeout"),
244 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
245 ngx_conf_set_msec_slot,
246 NGX_HTTP_LOC_CONF_OFFSET,
247 offsetof(ngx_http_fastcgi_loc_conf_t, upstream.connect_timeout),
248 NULL },
249
250 { ngx_string("fastcgi_send_timeout"),
251 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
252 ngx_conf_set_msec_slot,
253 NGX_HTTP_LOC_CONF_OFFSET,
254 offsetof(ngx_http_fastcgi_loc_conf_t, upstream.send_timeout),
255 NULL },
256
257 { ngx_string("fastcgi_send_lowat"),
258 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
259 ngx_conf_set_size_slot,
260 NGX_HTTP_LOC_CONF_OFFSET,
261 offsetof(ngx_http_fastcgi_loc_conf_t, upstream.send_lowat),
262 &ngx_http_fastcgi_lowat_post },
263
264 { ngx_string("fastcgi_buffer_size"),
265 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
266 ngx_conf_set_size_slot,
267 NGX_HTTP_LOC_CONF_OFFSET,
268 offsetof(ngx_http_fastcgi_loc_conf_t, upstream.buffer_size),
269 NULL },
270
271 { ngx_string("fastcgi_pass_request_headers"),
272 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
273 ngx_conf_set_flag_slot,
274 NGX_HTTP_LOC_CONF_OFFSET,
275 offsetof(ngx_http_fastcgi_loc_conf_t, upstream.pass_request_headers),
276 NULL },
277
278 { ngx_string("fastcgi_pass_request_body"),
279 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
280 ngx_conf_set_flag_slot,
281 NGX_HTTP_LOC_CONF_OFFSET,
282 offsetof(ngx_http_fastcgi_loc_conf_t, upstream.pass_request_body),
283 NULL },
284
285 { ngx_string("fastcgi_intercept_errors"),
286 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
287 ngx_conf_set_flag_slot,
288 NGX_HTTP_LOC_CONF_OFFSET,
289 offsetof(ngx_http_fastcgi_loc_conf_t, upstream.intercept_errors),
290 NULL },
291
292 { ngx_string("fastcgi_read_timeout"),
293 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
294 ngx_conf_set_msec_slot,
295 NGX_HTTP_LOC_CONF_OFFSET,
296 offsetof(ngx_http_fastcgi_loc_conf_t, upstream.read_timeout),
297 NULL },
298
299 { ngx_string("fastcgi_buffers"),
300 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2,
301 ngx_conf_set_bufs_slot,
302 NGX_HTTP_LOC_CONF_OFFSET,
303 offsetof(ngx_http_fastcgi_loc_conf_t, upstream.bufs),
304 NULL },
305
306 { ngx_string("fastcgi_busy_buffers_size"),
307 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
308 ngx_conf_set_size_slot,
309 NGX_HTTP_LOC_CONF_OFFSET,
310 offsetof(ngx_http_fastcgi_loc_conf_t, upstream.busy_buffers_size_conf),
311 NULL },
312
313 #if (NGX_HTTP_CACHE)
314
315 { ngx_string("fastcgi_cache"),
316 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
317 ngx_http_fastcgi_cache,
318 NGX_HTTP_LOC_CONF_OFFSET,
319 0,
320 NULL },
321
322 { ngx_string("fastcgi_cache_key"),
323 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
324 ngx_http_fastcgi_cache_key,
325 NGX_HTTP_LOC_CONF_OFFSET,
326 0,
327 NULL },
328
329 { ngx_string("fastcgi_cache_path"),
330 NGX_HTTP_MAIN_CONF|NGX_CONF_2MORE,
331 ngx_http_file_cache_set_slot,
332 0,
333 0,
334 &ngx_http_fastcgi_module },
335
336 { ngx_string("fastcgi_cache_valid"),
337 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
338 ngx_http_file_cache_valid_set_slot,
339 NGX_HTTP_LOC_CONF_OFFSET,
340 offsetof(ngx_http_fastcgi_loc_conf_t, upstream.cache_valid),
341 NULL },
342
343 { ngx_string("fastcgi_cache_min_uses"),
344 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
345 ngx_conf_set_num_slot,
346 NGX_HTTP_LOC_CONF_OFFSET,
347 offsetof(ngx_http_fastcgi_loc_conf_t, upstream.cache_min_uses),
348 NULL },
349
350 { ngx_string("fastcgi_cache_use_stale"),
351 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
352 ngx_conf_set_bitmask_slot,
353 NGX_HTTP_LOC_CONF_OFFSET,
354 offsetof(ngx_http_fastcgi_loc_conf_t, upstream.cache_use_stale),
355 &ngx_http_fastcgi_next_upstream_masks },
356
357 { ngx_string("fastcgi_cache_methods"),
358 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
359 ngx_conf_set_bitmask_slot,
360 NGX_HTTP_LOC_CONF_OFFSET,
361 offsetof(ngx_http_fastcgi_loc_conf_t, upstream.cache_methods),
362 &ngx_http_upstream_cache_method_mask },
363
364 #endif
365
366 { ngx_string("fastcgi_temp_path"),
367 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1234,
368 ngx_conf_set_path_slot,
369 NGX_HTTP_LOC_CONF_OFFSET,
370 offsetof(ngx_http_fastcgi_loc_conf_t, upstream.temp_path),
371 NULL },
372
373 { ngx_string("fastcgi_max_temp_file_size"),
374 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
375 ngx_conf_set_size_slot,
376 NGX_HTTP_LOC_CONF_OFFSET,
377 offsetof(ngx_http_fastcgi_loc_conf_t, upstream.max_temp_file_size_conf),
378 NULL },
379
380 { ngx_string("fastcgi_temp_file_write_size"),
381 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
382 ngx_conf_set_size_slot,
383 NGX_HTTP_LOC_CONF_OFFSET,
384 offsetof(ngx_http_fastcgi_loc_conf_t, upstream.temp_file_write_size_conf),
385 NULL },
386
387 { ngx_string("fastcgi_next_upstream"),
388 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
389 ngx_conf_set_bitmask_slot,
390 NGX_HTTP_LOC_CONF_OFFSET,
391 offsetof(ngx_http_fastcgi_loc_conf_t, upstream.next_upstream),
392 &ngx_http_fastcgi_next_upstream_masks },
393
394 { ngx_string("fastcgi_upstream_max_fails"),
395 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
396 ngx_http_fastcgi_upstream_max_fails_unsupported,
397 0,
398 0,
399 NULL },
400
401 { ngx_string("fastcgi_upstream_fail_timeout"),
402 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
403 ngx_http_fastcgi_upstream_fail_timeout_unsupported,
404 0,
405 0,
406 NULL },
407
408 { ngx_string("fastcgi_param"),
409 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2,
410 ngx_conf_set_keyval_slot,
411 NGX_HTTP_LOC_CONF_OFFSET,
412 offsetof(ngx_http_fastcgi_loc_conf_t, params_source),
413 NULL },
414
415 { ngx_string("fastcgi_pass_header"),
416 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
417 ngx_conf_set_str_array_slot,
418 NGX_HTTP_LOC_CONF_OFFSET,
419 offsetof(ngx_http_fastcgi_loc_conf_t, upstream.pass_headers),
420 NULL },
421
422 { ngx_string("fastcgi_hide_header"),
423 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
424 ngx_conf_set_str_array_slot,
425 NGX_HTTP_LOC_CONF_OFFSET,
426 offsetof(ngx_http_fastcgi_loc_conf_t, upstream.hide_headers),
427 NULL },
428
429 { ngx_string("fastcgi_ignore_headers"),
430 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
431 ngx_conf_set_bitmask_slot,
432 NGX_HTTP_LOC_CONF_OFFSET,
433 offsetof(ngx_http_fastcgi_loc_conf_t, upstream.ignore_headers),
434 &ngx_http_fastcgi_ignore_headers_masks },
435
436 { ngx_string("fastcgi_catch_stderr"),
437 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
438 ngx_conf_set_str_array_slot,
439 NGX_HTTP_LOC_CONF_OFFSET,
440 offsetof(ngx_http_fastcgi_loc_conf_t, catch_stderr),
441 NULL },
442
443 ngx_null_command
444 };
445
446
447 static ngx_http_module_t ngx_http_fastcgi_module_ctx = {
448 ngx_http_fastcgi_add_variables, /* preconfiguration */
449 NULL, /* postconfiguration */
450
451 NULL, /* create main configuration */
452 NULL, /* init main configuration */
453
454 NULL, /* create server configuration */
455 NULL, /* merge server configuration */
456
457 ngx_http_fastcgi_create_loc_conf, /* create location configuration */
458 ngx_http_fastcgi_merge_loc_conf /* merge location configuration */
459 };
460
461
462 ngx_module_t ngx_http_fastcgi_module = {
463 NGX_MODULE_V1,
464 &ngx_http_fastcgi_module_ctx, /* module context */
465 ngx_http_fastcgi_commands, /* module directives */
466 NGX_HTTP_MODULE, /* module type */
467 NULL, /* init master */
468 NULL, /* init module */
469 NULL, /* init process */
470 NULL, /* init thread */
471 NULL, /* exit thread */
472 NULL, /* exit process */
473 NULL, /* exit master */
474 NGX_MODULE_V1_PADDING
475 };
476
477
478 static ngx_http_fastcgi_request_start_t ngx_http_fastcgi_request_start = {
479 { 1, /* version */
480 NGX_HTTP_FASTCGI_BEGIN_REQUEST, /* type */
481 0, /* request_id_hi */
482 1, /* request_id_lo */
483 0, /* content_length_hi */
484 sizeof(ngx_http_fastcgi_begin_request_t), /* content_length_lo */
485 0, /* padding_length */
486 0 }, /* reserved */
487
488 { 0, /* role_hi */
489 NGX_HTTP_FASTCGI_RESPONDER, /* role_lo */
490 0, /* NGX_HTTP_FASTCGI_KEEP_CONN */ /* flags */
491 { 0, 0, 0, 0, 0 } }, /* reserved[5] */
492
493 { 1, /* version */
494 NGX_HTTP_FASTCGI_PARAMS, /* type */
495 0, /* request_id_hi */
496 1 }, /* request_id_lo */
497
498 };
499
500
501 static ngx_http_variable_t ngx_http_fastcgi_vars[] = {
502
503 { ngx_string("fastcgi_script_name"), NULL,
504 ngx_http_fastcgi_script_name_variable, 0,
505 NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_NOHASH, 0 },
506
507 { ngx_string("fastcgi_path_info"), NULL,
508 ngx_http_fastcgi_path_info_variable, 0,
509 NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_NOHASH, 0 },
510
511 { ngx_null_string, NULL, NULL, 0, 0, 0 }
512 };
513
514
515 static ngx_str_t ngx_http_fastcgi_hide_headers[] = {
516 ngx_string("Status"),
517 ngx_string("X-Accel-Expires"),
518 ngx_string("X-Accel-Redirect"),
519 ngx_string("X-Accel-Limit-Rate"),
520 ngx_string("X-Accel-Buffering"),
521 ngx_string("X-Accel-Charset"),
522 ngx_null_string
523 };
524
525
526 #if (NGX_HTTP_CACHE)
527
528 static ngx_str_t ngx_http_fastcgi_hide_cache_headers[] = {
529 ngx_string("Status"),
530 ngx_string("X-Accel-Expires"),
531 ngx_string("X-Accel-Redirect"),
532 ngx_string("X-Accel-Limit-Rate"),
533 ngx_string("X-Accel-Buffering"),
534 ngx_string("X-Accel-Charset"),
535 ngx_string("Set-Cookie"),
536 ngx_string("P3P"),
537 ngx_null_string
538 };
539
540 #endif
541
542
543 static ngx_path_init_t ngx_http_fastcgi_temp_path = {
544 ngx_string(NGX_HTTP_FASTCGI_TEMP_PATH), { 1, 2, 0 }
545 };
546
547
548 static ngx_int_t
549 ngx_http_fastcgi_handler(ngx_http_request_t *r)
550 {
551 ngx_int_t rc;
552 ngx_http_upstream_t *u;
553 ngx_http_fastcgi_ctx_t *f;
554 ngx_http_fastcgi_loc_conf_t *flcf;
555
556 if (r->subrequest_in_memory) {
557 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
558 "ngx_http_fastcgi_module does not support "
559 "subrequest in memory");
560 return NGX_HTTP_INTERNAL_SERVER_ERROR;
561 }
562
563 if (ngx_http_upstream_create(r) != NGX_OK) {
564 return NGX_HTTP_INTERNAL_SERVER_ERROR;
565 }
566
567 f = ngx_pcalloc(r->pool, sizeof(ngx_http_fastcgi_ctx_t));
568 if (f == NULL) {
569 return NGX_HTTP_INTERNAL_SERVER_ERROR;
570 }
571
572 ngx_http_set_ctx(r, f, ngx_http_fastcgi_module);
573
574 flcf = ngx_http_get_module_loc_conf(r, ngx_http_fastcgi_module);
575
576 if (flcf->fastcgi_lengths) {
577 if (ngx_http_fastcgi_eval(r, flcf) != NGX_OK) {
578 return NGX_HTTP_INTERNAL_SERVER_ERROR;
579 }
580 }
581
582 u = r->upstream;
583
584 u->schema.len = sizeof("fastcgi://") - 1;
585 u->schema.data = (u_char *) "fastcgi://";
586
587 u->output.tag = (ngx_buf_tag_t) &ngx_http_fastcgi_module;
588
589 u->conf = &flcf->upstream;
590
591 #if (NGX_HTTP_CACHE)
592 u->create_key = ngx_http_fastcgi_create_key;
593 #endif
594 u->create_request = ngx_http_fastcgi_create_request;
595 u->reinit_request = ngx_http_fastcgi_reinit_request;
596 u->process_header = ngx_http_fastcgi_process_header;
597 u->abort_request = ngx_http_fastcgi_abort_request;
598 u->finalize_request = ngx_http_fastcgi_finalize_request;
599
600 u->buffering = 1;
601
602 u->pipe = ngx_pcalloc(r->pool, sizeof(ngx_event_pipe_t));
603 if (u->pipe == NULL) {
604 return NGX_HTTP_INTERNAL_SERVER_ERROR;
605 }
606
607 u->pipe->input_filter = ngx_http_fastcgi_input_filter;
608 u->pipe->input_ctx = r;
609
610 rc = ngx_http_read_client_request_body(r, ngx_http_upstream_init);
611
612 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {
613 return rc;
614 }
615
616 return NGX_DONE;
617 }
618
619
620 static ngx_int_t
621 ngx_http_fastcgi_eval(ngx_http_request_t *r, ngx_http_fastcgi_loc_conf_t *flcf)
622 {
623 ngx_url_t u;
624
625 ngx_memzero(&u, sizeof(ngx_url_t));
626
627 if (ngx_http_script_run(r, &u.url, flcf->fastcgi_lengths->elts, 0,
628 flcf->fastcgi_values->elts)
629 == NULL)
630 {
631 return NGX_ERROR;
632 }
633
634 u.no_resolve = 1;
635
636 if (ngx_parse_url(r->pool, &u) != NGX_OK) {
637 if (u.err) {
638 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
639 "%s in upstream \"%V\"", u.err, &u.url);
640 }
641
642 return NGX_ERROR;
643 }
644
645 if (u.no_port) {
646 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
647 "no port in upstream \"%V\"", &u.url);
648 return NGX_ERROR;
649 }
650
651 r->upstream->resolved = ngx_pcalloc(r->pool,
652 sizeof(ngx_http_upstream_resolved_t));
653 if (r->upstream->resolved == NULL) {
654 return NGX_ERROR;
655 }
656
657 if (u.addrs && u.addrs[0].sockaddr) {
658 r->upstream->resolved->sockaddr = u.addrs[0].sockaddr;
659 r->upstream->resolved->socklen = u.addrs[0].socklen;
660 r->upstream->resolved->naddrs = 1;
661 r->upstream->resolved->host = u.addrs[0].name;
662
663 } else {
664 r->upstream->resolved->host = u.host;
665 r->upstream->resolved->port = u.port;
666 }
667
668 return NGX_OK;
669 }
670
671
672 #if (NGX_HTTP_CACHE)
673
674 static ngx_int_t
675 ngx_http_fastcgi_create_key(ngx_http_request_t *r)
676 {
677 ngx_str_t *key;
678 ngx_http_fastcgi_loc_conf_t *flcf;
679
680 key = ngx_array_push(&r->cache->keys);
681 if (key == NULL) {
682 return NGX_ERROR;
683 }
684
685 flcf = ngx_http_get_module_loc_conf(r, ngx_http_fastcgi_module);
686
687 if (ngx_http_complex_value(r, &flcf->cache_key, key) != NGX_OK) {
688 return NGX_ERROR;
689 }
690
691 return NGX_OK;
692 }
693
694 #endif
695
696
697 static ngx_int_t
698 ngx_http_fastcgi_create_request(ngx_http_request_t *r)
699 {
700 off_t file_pos;
701 u_char ch, *pos;
702 size_t size, len, key_len, val_len, padding;
703 ngx_uint_t i, n, next;
704 ngx_buf_t *b;
705 ngx_chain_t *cl, *body;
706 ngx_list_part_t *part;
707 ngx_table_elt_t *header;
708 ngx_http_script_code_pt code;
709 ngx_http_script_engine_t e, le;
710 ngx_http_fastcgi_header_t *h;
711 ngx_http_fastcgi_loc_conf_t *flcf;
712 ngx_http_script_len_code_pt lcode;
713
714 len = 0;
715
716 flcf = ngx_http_get_module_loc_conf(r, ngx_http_fastcgi_module);
717
718 if (flcf->params_len) {
719 ngx_memzero(&le, sizeof(ngx_http_script_engine_t));
720
721 ngx_http_script_flush_no_cacheable_variables(r, flcf->flushes);
722 le.flushed = 1;
723
724 le.ip = flcf->params_len->elts;
725 le.request = r;
726
727 while (*(uintptr_t *) le.ip) {
728
729 lcode = *(ngx_http_script_len_code_pt *) le.ip;
730 key_len = lcode(&le);
731
732 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) {
733 lcode = *(ngx_http_script_len_code_pt *) le.ip;
734 }
735 le.ip += sizeof(uintptr_t);
736
737 len += 1 + key_len + ((val_len > 127) ? 4 : 1) + val_len;
738 }
739 }
740
741 if (flcf->upstream.pass_request_headers) {
742
743 part = &r->headers_in.headers.part;
744 header = part->elts;
745
746 for (i = 0; /* void */; i++) {
747
748 if (i >= part->nelts) {
749 if (part->next == NULL) {
750 break;
751 }
752
753 part = part->next;
754 header = part->elts;
755 i = 0;
756 }
757
758 len += ((sizeof("HTTP_") - 1 + header[i].key.len > 127) ? 4 : 1)
759 + ((header[i].value.len > 127) ? 4 : 1)
760 + sizeof("HTTP_") - 1 + header[i].key.len + header[i].value.len;
761 }
762 }
763
764
765 if (len > 65535) {
766 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
767 "fastcgi request record is too big: %uz", len);
768 return NGX_ERROR;
769 }
770
771
772 padding = 8 - len % 8;
773 padding = (padding == 8) ? 0 : padding;
774
775
776 size = sizeof(ngx_http_fastcgi_header_t)
777 + sizeof(ngx_http_fastcgi_begin_request_t)
778
779 + sizeof(ngx_http_fastcgi_header_t) /* NGX_HTTP_FASTCGI_PARAMS */
780 + len + padding
781 + sizeof(ngx_http_fastcgi_header_t) /* NGX_HTTP_FASTCGI_PARAMS */
782
783 + sizeof(ngx_http_fastcgi_header_t); /* NGX_HTTP_FASTCGI_STDIN */
784
785
786 b = ngx_create_temp_buf(r->pool, size);
787 if (b == NULL) {
788 return NGX_ERROR;
789 }
790
791 cl = ngx_alloc_chain_link(r->pool);
792 if (cl == NULL) {
793 return NGX_ERROR;
794 }
795
796 cl->buf = b;
797
798 ngx_memcpy(b->pos, &ngx_http_fastcgi_request_start,
799 sizeof(ngx_http_fastcgi_request_start_t));
800
801 h = (ngx_http_fastcgi_header_t *)
802 (b->pos + sizeof(ngx_http_fastcgi_header_t)
803 + sizeof(ngx_http_fastcgi_begin_request_t));
804
805 h->content_length_hi = (u_char) ((len >> 8) & 0xff);
806 h->content_length_lo = (u_char) (len & 0xff);
807 h->padding_length = (u_char) padding;
808 h->reserved = 0;
809
810 b->last = b->pos + sizeof(ngx_http_fastcgi_header_t)
811 + sizeof(ngx_http_fastcgi_begin_request_t)
812 + sizeof(ngx_http_fastcgi_header_t);
813
814
815 if (flcf->params_len) {
816 ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
817
818 e.ip = flcf->params->elts;
819 e.pos = b->last;
820 e.request = r;
821 e.flushed = 1;
822
823 le.ip = flcf->params_len->elts;
824
825 while (*(uintptr_t *) le.ip) {
826
827 lcode = *(ngx_http_script_len_code_pt *) le.ip;
828 key_len = (u_char) lcode(&le);
829
830 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) {
831 lcode = *(ngx_http_script_len_code_pt *) le.ip;
832 }
833 le.ip += sizeof(uintptr_t);
834
835 *e.pos++ = (u_char) key_len;
836
837 if (val_len > 127) {
838 *e.pos++ = (u_char) (((val_len >> 24) & 0x7f) | 0x80);
839 *e.pos++ = (u_char) ((val_len >> 16) & 0xff);
840 *e.pos++ = (u_char) ((val_len >> 8) & 0xff);
841 *e.pos++ = (u_char) (val_len & 0xff);
842
843 } else {
844 *e.pos++ = (u_char) val_len;
845 }
846
847 while (*(uintptr_t *) e.ip) {
848 code = *(ngx_http_script_code_pt *) e.ip;
849 code((ngx_http_script_engine_t *) &e);
850 }
851 e.ip += sizeof(uintptr_t);
852
853 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
854 "fastcgi param: \"%*s: %*s\"",
855 key_len, e.pos - (key_len + val_len),
856 val_len, e.pos - val_len);
857 }
858
859 b->last = e.pos;
860 }
861
862
863 if (flcf->upstream.pass_request_headers) {
864
865 part = &r->headers_in.headers.part;
866 header = part->elts;
867
868 for (i = 0; /* void */; i++) {
869
870 if (i >= part->nelts) {
871 if (part->next == NULL) {
872 break;
873 }
874
875 part = part->next;
876 header = part->elts;
877 i = 0;
878 }
879
880 len = sizeof("HTTP_") - 1 + header[i].key.len;
881 if (len > 127) {
882 *b->last++ = (u_char) (((len >> 24) & 0x7f) | 0x80);
883 *b->last++ = (u_char) ((len >> 16) & 0xff);
884 *b->last++ = (u_char) ((len >> 8) & 0xff);
885 *b->last++ = (u_char) (len & 0xff);
886
887 } else {
888 *b->last++ = (u_char) len;
889 }
890
891 len = header[i].value.len;
892 if (len > 127) {
893 *b->last++ = (u_char) (((len >> 24) & 0x7f) | 0x80);
894 *b->last++ = (u_char) ((len >> 16) & 0xff);
895 *b->last++ = (u_char) ((len >> 8) & 0xff);
896 *b->last++ = (u_char) (len & 0xff);
897
898 } else {
899 *b->last++ = (u_char) len;
900 }
901
902 b->last = ngx_cpymem(b->last, "HTTP_", sizeof("HTTP_") - 1);
903
904 for (n = 0; n < header[i].key.len; n++) {
905 ch = header[i].key.data[n];
906
907 if (ch >= 'a' && ch <= 'z') {
908 ch &= ~0x20;
909
910 } else if (ch == '-') {
911 ch = '_';
912 }
913
914 *b->last++ = ch;
915 }
916
917 b->last = ngx_copy(b->last, header[i].value.data,
918 header[i].value.len);
919 }
920 }
921
922
923 if (padding) {
924 ngx_memzero(b->last, padding);
925 b->last += padding;
926 }
927
928
929 h = (ngx_http_fastcgi_header_t *) b->last;
930 b->last += sizeof(ngx_http_fastcgi_header_t);
931
932 h->version = 1;
933 h->type = NGX_HTTP_FASTCGI_PARAMS;
934 h->request_id_hi = 0;
935 h->request_id_lo = 1;
936 h->content_length_hi = 0;
937 h->content_length_lo = 0;
938 h->padding_length = 0;
939 h->reserved = 0;
940
941 h = (ngx_http_fastcgi_header_t *) b->last;
942 b->last += sizeof(ngx_http_fastcgi_header_t);
943
944 if (flcf->upstream.pass_request_body) {
945 body = r->upstream->request_bufs;
946 r->upstream->request_bufs = cl;
947
948 #if (NGX_SUPPRESS_WARN)
949 file_pos = 0;
950 pos = NULL;
951 #endif
952
953 while (body) {
954
955 if (body->buf->in_file) {
956 file_pos = body->buf->file_pos;
957
958 } else {
959 pos = body->buf->pos;
960 }
961
962 next = 0;
963
964 do {
965 b = ngx_alloc_buf(r->pool);
966 if (b == NULL) {
967 return NGX_ERROR;
968 }
969
970 ngx_memcpy(b, body->buf, sizeof(ngx_buf_t));
971
972 if (body->buf->in_file) {
973 b->file_pos = file_pos;
974 file_pos += 32 * 1024;
975
976 if (file_pos >= body->buf->file_last) {
977 file_pos = body->buf->file_last;
978 next = 1;
979 }
980
981 b->file_last = file_pos;
982 len = (ngx_uint_t) (file_pos - b->file_pos);
983
984 } else {
985 b->pos = pos;
986 pos += 32 * 1024;
987
988 if (pos >= body->buf->last) {
989 pos = body->buf->last;
990 next = 1;
991 }
992
993 b->last = pos;
994 len = (ngx_uint_t) (pos - b->pos);
995 }
996
997 padding = 8 - len % 8;
998 padding = (padding == 8) ? 0 : padding;
999
1000 h->version = 1;
1001 h->type = NGX_HTTP_FASTCGI_STDIN;
1002 h->request_id_hi = 0;
1003 h->request_id_lo = 1;
1004 h->content_length_hi = (u_char) ((len >> 8) & 0xff);
1005 h->content_length_lo = (u_char) (len & 0xff);
1006 h->padding_length = (u_char) padding;
1007 h->reserved = 0;
1008
1009 cl->next = ngx_alloc_chain_link(r->pool);
1010 if (cl->next == NULL) {
1011 return NGX_ERROR;
1012 }
1013
1014 cl = cl->next;
1015 cl->buf = b;
1016
1017 b = ngx_create_temp_buf(r->pool,
1018 sizeof(ngx_http_fastcgi_header_t)
1019 + padding);
1020 if (b == NULL) {
1021 return NGX_ERROR;
1022 }
1023
1024 if (padding) {
1025 ngx_memzero(b->last, padding);
1026 b->last += padding;
1027 }
1028
1029 h = (ngx_http_fastcgi_header_t *) b->last;
1030 b->last += sizeof(ngx_http_fastcgi_header_t);
1031
1032 cl->next = ngx_alloc_chain_link(r->pool);
1033 if (cl->next == NULL) {
1034 return NGX_ERROR;
1035 }
1036
1037 cl = cl->next;
1038 cl->buf = b;
1039
1040 } while (!next);
1041
1042 body = body->next;
1043 }
1044
1045 } else {
1046 r->upstream->request_bufs = cl;
1047 }
1048
1049 h->version = 1;
1050 h->type = NGX_HTTP_FASTCGI_STDIN;
1051 h->request_id_hi = 0;
1052 h->request_id_lo = 1;
1053 h->content_length_hi = 0;
1054 h->content_length_lo = 0;
1055 h->padding_length = 0;
1056 h->reserved = 0;
1057
1058 cl->next = NULL;
1059
1060 return NGX_OK;
1061 }
1062
1063
1064 static ngx_int_t
1065 ngx_http_fastcgi_reinit_request(ngx_http_request_t *r)
1066 {
1067 ngx_http_fastcgi_ctx_t *f;
1068
1069 f = ngx_http_get_module_ctx(r, ngx_http_fastcgi_module);
1070
1071 if (f == NULL) {
1072 return NGX_OK;
1073 }
1074
1075 f->state = ngx_http_fastcgi_st_version;
1076 f->fastcgi_stdout = 0;
1077
1078 return NGX_OK;
1079 }
1080
1081
1082 static ngx_int_t
1083 ngx_http_fastcgi_process_header(ngx_http_request_t *r)
1084 {
1085 u_char *p, *msg, *start, *last,
1086 *part_start, *part_end;
1087 size_t size;
1088 ngx_str_t *status_line, *pattern;
1089 ngx_int_t rc, status;
1090 ngx_buf_t buf;
1091 ngx_uint_t i;
1092 ngx_table_elt_t *h;
1093 ngx_http_upstream_t *u;
1094 ngx_http_fastcgi_ctx_t *f;
1095 ngx_http_upstream_header_t *hh;
1096 ngx_http_fastcgi_loc_conf_t *flcf;
1097 ngx_http_fastcgi_split_part_t *part;
1098 ngx_http_upstream_main_conf_t *umcf;
1099
1100 f = ngx_http_get_module_ctx(r, ngx_http_fastcgi_module);
1101
1102 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module);
1103
1104 u = r->upstream;
1105
1106 for ( ;; ) {
1107
1108 if (f->state < ngx_http_fastcgi_st_data) {
1109
1110 f->pos = u->buffer.pos;
1111 f->last = u->buffer.last;
1112
1113 rc = ngx_http_fastcgi_process_record(r, f);
1114
1115 u->buffer.pos = f->pos;
1116 u->buffer.last = f->last;
1117
1118 if (rc == NGX_AGAIN) {
1119 return NGX_AGAIN;
1120 }
1121
1122 if (rc == NGX_ERROR) {
1123 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
1124 }
1125
1126 if (f->type != NGX_HTTP_FASTCGI_STDOUT
1127 && f->type != NGX_HTTP_FASTCGI_STDERR)
1128 {
1129 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
1130 "upstream sent unexpected FastCGI record: %d",
1131 f->type);
1132
1133 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
1134 }
1135
1136 if (f->type == NGX_HTTP_FASTCGI_STDOUT && f->length == 0) {
1137 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
1138 "upstream closed prematurely FastCGI stdout");
1139
1140 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
1141 }
1142 }
1143
1144 if (f->state == ngx_http_fastcgi_st_padding) {
1145
1146 if (u->buffer.pos + f->padding < u->buffer.last) {
1147 f->state = ngx_http_fastcgi_st_version;
1148 u->buffer.pos += f->padding;
1149
1150 continue;
1151 }
1152
1153 if (u->buffer.pos + f->padding == u->buffer.last) {
1154 f->state = ngx_http_fastcgi_st_version;
1155 u->buffer.pos = u->buffer.last;
1156
1157 return NGX_AGAIN;
1158 }
1159
1160 f->padding -= u->buffer.last - u->buffer.pos;
1161 u->buffer.pos = u->buffer.last;
1162
1163 return NGX_AGAIN;
1164 }
1165
1166
1167 /* f->state == ngx_http_fastcgi_st_data */
1168
1169 if (f->type == NGX_HTTP_FASTCGI_STDERR) {
1170
1171 if (f->length) {
1172 msg = u->buffer.pos;
1173
1174 if (u->buffer.pos + f->length <= u->buffer.last) {
1175 u->buffer.pos += f->length;
1176 f->length = 0;
1177 f->state = ngx_http_fastcgi_st_padding;
1178
1179 } else {
1180 f->length -= u->buffer.last - u->buffer.pos;
1181 u->buffer.pos = u->buffer.last;
1182 }
1183
1184 for (p = u->buffer.pos - 1; msg < p; p--) {
1185 if (*p != LF && *p != CR && *p != '.' && *p != ' ') {
1186 break;
1187 }
1188 }
1189
1190 p++;
1191
1192 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
1193 "FastCGI sent in stderr: \"%*s\"", p - msg, msg);
1194
1195 flcf = ngx_http_get_module_loc_conf(r, ngx_http_fastcgi_module);
1196
1197 if (flcf->catch_stderr) {
1198 pattern = flcf->catch_stderr->elts;
1199
1200 for (i = 0; i < flcf->catch_stderr->nelts; i++) {
1201 if (ngx_strnstr(msg, (char *) pattern[i].data,
1202 p - msg)
1203 != NULL)
1204 {
1205 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
1206 }
1207 }
1208 }
1209
1210 if (u->buffer.pos == u->buffer.last) {
1211
1212 if (!f->fastcgi_stdout) {
1213
1214 /*
1215 * the special handling the large number
1216 * of the PHP warnings to not allocate memory
1217 */
1218
1219 u->buffer.pos = u->buffer.start;
1220 u->buffer.last = u->buffer.start;
1221 }
1222
1223 return NGX_AGAIN;
1224 }
1225
1226 } else {
1227 f->state = ngx_http_fastcgi_st_version;
1228 }
1229
1230 continue;
1231 }
1232
1233
1234 /* f->type == NGX_HTTP_FASTCGI_STDOUT */
1235
1236 f->fastcgi_stdout = 1;
1237
1238 start = u->buffer.pos;
1239
1240 if (u->buffer.pos + f->length < u->buffer.last) {
1241
1242 /*
1243 * set u->buffer.last to the end of the FastCGI record data
1244 * for ngx_http_parse_header_line()
1245 */
1246
1247 last = u->buffer.last;
1248 u->buffer.last = u->buffer.pos + f->length;
1249
1250 } else {
1251 last = NULL;
1252 }
1253
1254 for ( ;; ) {
1255
1256 part_start = u->buffer.pos;
1257 part_end = u->buffer.last;
1258
1259 rc = ngx_http_parse_header_line(r, &u->buffer, 1);
1260
1261 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1262 "http fastcgi parser: %d", rc);
1263
1264 if (rc == NGX_AGAIN) {
1265 break;
1266 }
1267
1268 if (rc == NGX_OK) {
1269
1270 /* a header line has been parsed successfully */
1271
1272 h = ngx_list_push(&u->headers_in.headers);
1273 if (h == NULL) {
1274 return NGX_ERROR;
1275 }
1276
1277 if (f->split_parts && f->split_parts->nelts) {
1278
1279 part = f->split_parts->elts;
1280 size = u->buffer.pos - part_start;
1281
1282 for (i = 0; i < f->split_parts->nelts; i++) {
1283 size += part[i].end - part[i].start;
1284 }
1285
1286 p = ngx_pnalloc(r->pool, size);
1287 if (p == NULL) {
1288 return NGX_ERROR;
1289 }
1290
1291 buf.pos = p;
1292
1293 for (i = 0; i < f->split_parts->nelts; i++) {
1294 p = ngx_cpymem(p, part[i].start,
1295 part[i].end - part[i].start);
1296 }
1297
1298 p = ngx_cpymem(p, part_start, u->buffer.pos - part_start);
1299
1300 buf.last = p;
1301
1302 f->split_parts->nelts = 0;
1303
1304 rc = ngx_http_parse_header_line(r, &buf, 1);
1305
1306 h->key.len = r->header_name_end - r->header_name_start;
1307 h->key.data = r->header_name_start;
1308 h->key.data[h->key.len] = '\0';
1309
1310 h->value.len = r->header_end - r->header_start;
1311 h->value.data = r->header_start;
1312 h->value.data[h->value.len] = '\0';
1313
1314 h->lowcase_key = ngx_pnalloc(r->pool, h->key.len);
1315 if (h->lowcase_key == NULL) {
1316 return NGX_ERROR;
1317 }
1318
1319 } else {
1320
1321 h->key.len = r->header_name_end - r->header_name_start;
1322 h->value.len = r->header_end - r->header_start;
1323
1324 h->key.data = ngx_pnalloc(r->pool,
1325 h->key.len + 1 + h->value.len + 1
1326 + h->key.len);
1327 if (h->key.data == NULL) {
1328 return NGX_ERROR;
1329 }
1330
1331 h->value.data = h->key.data + h->key.len + 1;
1332 h->lowcase_key = h->key.data + h->key.len + 1
1333 + h->value.len + 1;
1334
1335 ngx_cpystrn(h->key.data, r->header_name_start,
1336 h->key.len + 1);
1337 ngx_cpystrn(h->value.data, r->header_start,
1338 h->value.len + 1);
1339 }
1340
1341 h->hash = r->header_hash;
1342
1343 if (h->key.len == r->lowcase_index) {
1344 ngx_memcpy(h->lowcase_key, r->lowcase_header, h->key.len);
1345
1346 } else {
1347 ngx_strlow(h->lowcase_key, h->key.data, h->key.len);
1348 }
1349
1350 hh = ngx_hash_find(&umcf->headers_in_hash, h->hash,
1351 h->lowcase_key, h->key.len);
1352
1353 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) {
1354 return NGX_ERROR;
1355 }
1356
1357 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1358 "http fastcgi header: \"%V: %V\"",
1359 &h->key, &h->value);
1360
1361 if (u->buffer.pos < u->buffer.last) {
1362 continue;
1363 }
1364
1365 /* the end of the FastCGI record */
1366
1367 break;
1368 }
1369
1370 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
1371
1372 /* a whole header has been parsed successfully */
1373
1374 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1375 "http fastcgi header done");
1376
1377 if (u->headers_in.status) {
1378 status_line = &u->headers_in.status->value;
1379
1380 status = ngx_atoi(status_line->data, 3);
1381
1382 if (status == NGX_ERROR) {
1383 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
1384 "upstream sent invalid status \"%V\"",
1385 status_line);
1386 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
1387 }
1388
1389 u->headers_in.status_n = status;
1390 u->headers_in.status_line = *status_line;
1391
1392 } else if (u->headers_in.location) {
1393 u->headers_in.status_n = 302;
1394 u->headers_in.status_line.len =
1395 sizeof("302 Moved Temporarily") - 1;
1396 u->headers_in.status_line.data =
1397 (u_char *) "302 Moved Temporarily";
1398
1399 } else {
1400 u->headers_in.status_n = 200;
1401 u->headers_in.status_line.len = sizeof("200 OK") - 1;
1402 u->headers_in.status_line.data = (u_char *) "200 OK";
1403 }
1404
1405 if (u->state) {
1406 u->state->status = u->headers_in.status_n;
1407 }
1408
1409 break;
1410 }
1411
1412 /* there was error while a header line parsing */
1413
1414 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
1415 "upstream sent invalid header");
1416
1417 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
1418 }
1419
1420 if (last) {
1421 u->buffer.last = last;
1422 }
1423
1424 f->length -= u->buffer.pos - start;
1425
1426 if (f->length == 0) {
1427 if (f->padding) {
1428 f->state = ngx_http_fastcgi_st_padding;
1429 } else {
1430 f->state = ngx_http_fastcgi_st_version;
1431 }
1432 }
1433
1434 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
1435 return NGX_OK;
1436 }
1437
1438 if (rc == NGX_OK) {
1439 continue;
1440 }
1441
1442 /* rc == NGX_AGAIN */
1443
1444 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1445 "upstream split a header line in FastCGI records");
1446
1447 if (f->split_parts == NULL) {
1448 f->split_parts = ngx_array_create(r->pool, 1,
1449 sizeof(ngx_http_fastcgi_split_part_t));
1450 if (f->split_parts == NULL) {
1451 return NGX_ERROR;
1452 }
1453 }
1454
1455 part = ngx_array_push(f->split_parts);
1456
1457 part->start = part_start;
1458 part->end = part_end;
1459
1460 if (u->buffer.pos < u->buffer.last) {
1461 continue;
1462 }
1463
1464 return NGX_AGAIN;
1465 }
1466 }
1467
1468
1469 static ngx_int_t
1470 ngx_http_fastcgi_input_filter(ngx_event_pipe_t *p, ngx_buf_t *buf)
1471 {
1472 u_char *m, *msg;
1473 ngx_int_t rc;
1474 ngx_buf_t *b, **prev;
1475 ngx_chain_t *cl;
1476 ngx_http_request_t *r;
1477 ngx_http_fastcgi_ctx_t *f;
1478
1479 if (buf->pos == buf->last) {
1480 return NGX_OK;
1481 }
1482
1483 r = p->input_ctx;
1484 f = ngx_http_get_module_ctx(r, ngx_http_fastcgi_module);
1485
1486 b = NULL;
1487 prev = &buf->shadow;
1488
1489 f->pos = buf->pos;
1490 f->last = buf->last;
1491
1492 for ( ;; ) {
1493 if (f->state < ngx_http_fastcgi_st_data) {
1494
1495 rc = ngx_http_fastcgi_process_record(r, f);
1496
1497 if (rc == NGX_AGAIN) {
1498 break;
1499 }
1500
1501 if (rc == NGX_ERROR) {
1502 return NGX_ERROR;
1503 }
1504
1505 if (f->type == NGX_HTTP_FASTCGI_STDOUT && f->length == 0) {
1506 f->state = ngx_http_fastcgi_st_version;
1507 p->upstream_done = 1;
1508
1509 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, p->log, 0,
1510 "http fastcgi closed stdout");
1511
1512 continue;
1513 }
1514
1515 if (f->type == NGX_HTTP_FASTCGI_END_REQUEST) {
1516 f->state = ngx_http_fastcgi_st_version;
1517 p->upstream_done = 1;
1518
1519 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, p->log, 0,
1520 "http fastcgi sent end request");
1521
1522 break;
1523 }
1524 }
1525
1526
1527 if (f->state == ngx_http_fastcgi_st_padding) {
1528
1529 if (f->pos + f->padding < f->last) {
1530 f->state = ngx_http_fastcgi_st_version;
1531 f->pos += f->padding;
1532
1533 continue;
1534 }
1535
1536 if (f->pos + f->padding == f->last) {
1537 f->state = ngx_http_fastcgi_st_version;
1538
1539 break;
1540 }
1541
1542 f->padding -= f->last - f->pos;
1543
1544 break;
1545 }
1546
1547
1548 /* f->state == ngx_http_fastcgi_st_data */
1549
1550 if (f->type == NGX_HTTP_FASTCGI_STDERR) {
1551
1552 if (f->length) {
1553
1554 if (f->pos == f->last) {
1555 break;
1556 }
1557
1558 msg = f->pos;
1559
1560 if (f->pos + f->length <= f->last) {
1561 f->pos += f->length;
1562 f->length = 0;
1563 f->state = ngx_http_fastcgi_st_padding;
1564
1565 } else {
1566 f->length -= f->last - f->pos;
1567 f->pos = f->last;
1568 }
1569
1570 for (m = f->pos - 1; msg < m; m--) {
1571 if (*m != LF && *m != CR && *m != '.' && *m != ' ') {
1572 break;
1573 }
1574 }
1575
1576 ngx_log_error(NGX_LOG_ERR, p->log, 0,
1577 "FastCGI sent in stderr: \"%*s\"",
1578 m + 1 - msg, msg);
1579
1580 if (f->pos == f->last) {
1581 break;
1582 }
1583
1584 } else {
1585 f->state = ngx_http_fastcgi_st_version;
1586 }
1587
1588 continue;
1589 }
1590
1591
1592 /* f->type == NGX_HTTP_FASTCGI_STDOUT */
1593
1594 if (f->pos == f->last) {
1595 break;
1596 }
1597
1598 if (p->free) {
1599 b = p->free->buf;
1600 p->free = p->free->next;
1601
1602 } else {
1603 b = ngx_alloc_buf(p->pool);
1604 if (b == NULL) {
1605 return NGX_ERROR;
1606 }
1607 }
1608
1609 ngx_memzero(b, sizeof(ngx_buf_t));
1610
1611 b->pos = f->pos;
1612 b->start = buf->start;
1613 b->end = buf->end;
1614 b->tag = p->tag;
1615 b->temporary = 1;
1616 b->recycled = 1;
1617
1618 *prev = b;
1619 prev = &b->shadow;
1620
1621 cl = ngx_alloc_chain_link(p->pool);
1622 if (cl == NULL) {
1623 return NGX_ERROR;
1624 }
1625
1626 cl->buf = b;
1627 cl->next = NULL;
1628
1629 if (p->in) {
1630 *p->last_in = cl;
1631 } else {
1632 p->in = cl;
1633 }
1634 p->last_in = &cl->next;
1635
1636
1637 /* STUB */ b->num = buf->num;
1638
1639 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, p->log, 0,
1640 "input buf #%d %p", b->num, b->pos);
1641
1642 if (f->pos + f->length < f->last) {
1643
1644 if (f->padding) {
1645 f->state = ngx_http_fastcgi_st_padding;
1646 } else {
1647 f->state = ngx_http_fastcgi_st_version;
1648 }
1649
1650 f->pos += f->length;
1651 b->last = f->pos;
1652
1653 continue;
1654 }
1655
1656 if (f->pos + f->length == f->last) {
1657
1658 if (f->padding) {
1659 f->state = ngx_http_fastcgi_st_padding;
1660 } else {
1661 f->state = ngx_http_fastcgi_st_version;
1662 }
1663
1664 b->last = f->last;
1665
1666 break;
1667 }
1668
1669 f->length -= f->last - f->pos;
1670
1671 b->last = f->last;
1672
1673 break;
1674
1675 }
1676
1677 if (b) {
1678 b->shadow = buf;
1679 b->last_shadow = 1;
1680
1681 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, p->log, 0,
1682 "input buf %p %z", b->pos, b->last - b->pos);
1683
1684 return NGX_OK;
1685 }
1686
1687 /* there is no data record in the buf, add it to free chain */
1688
1689 if (ngx_event_pipe_add_free_buf(p, buf) != NGX_OK) {
1690 return NGX_ERROR;
1691 }
1692
1693 return NGX_OK;
1694 }
1695
1696
1697 static ngx_int_t
1698 ngx_http_fastcgi_process_record(ngx_http_request_t *r,
1699 ngx_http_fastcgi_ctx_t *f)
1700 {
1701 u_char ch, *p;
1702 ngx_http_fastcgi_state_e state;
1703
1704 state = f->state;
1705
1706 for (p = f->pos; p < f->last; p++) {
1707
1708 ch = *p;
1709
1710 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1711 "http fastcgi record byte: %02Xd", ch);
1712
1713 switch (state) {
1714
1715 case ngx_http_fastcgi_st_version:
1716 if (ch != 1) {
1717 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
1718 "upstream sent unsupported FastCGI "
1719 "protocol version: %d", ch);
1720 return NGX_ERROR;
1721 }
1722 state = ngx_http_fastcgi_st_type;
1723 break;
1724
1725 case ngx_http_fastcgi_st_type:
1726 switch (ch) {
1727 case NGX_HTTP_FASTCGI_STDOUT:
1728 case NGX_HTTP_FASTCGI_STDERR:
1729 case NGX_HTTP_FASTCGI_END_REQUEST:
1730 f->type = (ngx_uint_t) ch;
1731 break;
1732 default:
1733 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
1734 "upstream sent invalid FastCGI "
1735 "record type: %d", ch);
1736 return NGX_ERROR;
1737
1738 }
1739 state = ngx_http_fastcgi_st_request_id_hi;
1740 break;
1741
1742 /* we support the single request per connection */
1743
1744 case ngx_http_fastcgi_st_request_id_hi:
1745 if (ch != 0) {
1746 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
1747 "upstream sent unexpected FastCGI "
1748 "request id high byte: %d", ch);
1749 return NGX_ERROR;
1750 }
1751 state = ngx_http_fastcgi_st_request_id_lo;
1752 break;
1753
1754 case ngx_http_fastcgi_st_request_id_lo:
1755 if (ch != 1) {
1756 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
1757 "upstream sent unexpected FastCGI "
1758 "request id low byte: %d", ch);
1759 return NGX_ERROR;
1760 }
1761 state = ngx_http_fastcgi_st_content_length_hi;
1762 break;
1763
1764 case ngx_http_fastcgi_st_content_length_hi:
1765 f->length = ch << 8;
1766 state = ngx_http_fastcgi_st_content_length_lo;
1767 break;
1768
1769 case ngx_http_fastcgi_st_content_length_lo:
1770 f->length |= (size_t) ch;
1771 state = ngx_http_fastcgi_st_padding_length;
1772 break;
1773
1774 case ngx_http_fastcgi_st_padding_length:
1775 f->padding = (size_t) ch;
1776 state = ngx_http_fastcgi_st_reserved;
1777 break;
1778
1779 case ngx_http_fastcgi_st_reserved:
1780 state = ngx_http_fastcgi_st_data;
1781
1782 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1783 "http fastcgi record length: %z", f->length);
1784
1785 f->pos = p + 1;
1786 f->state = state;
1787
1788 return NGX_OK;
1789
1790 /* suppress warning */
1791 case ngx_http_fastcgi_st_data:
1792 case ngx_http_fastcgi_st_padding:
1793 break;
1794 }
1795 }
1796
1797 f->state = state;
1798
1799 return NGX_AGAIN;
1800 }
1801
1802
1803 static void
1804 ngx_http_fastcgi_abort_request(ngx_http_request_t *r)
1805 {
1806 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1807 "abort http fastcgi request");
1808
1809 return;
1810 }
1811
1812
1813 static void
1814 ngx_http_fastcgi_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
1815 {
1816 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1817 "finalize http fastcgi request");
1818
1819 return;
1820 }
1821
1822
1823 static ngx_int_t
1824 ngx_http_fastcgi_add_variables(ngx_conf_t *cf)
1825 {
1826 ngx_http_variable_t *var, *v;
1827
1828 for (v = ngx_http_fastcgi_vars; v->name.len; v++) {
1829 var = ngx_http_add_variable(cf, &v->name, v->flags);
1830 if (var == NULL) {
1831 return NGX_ERROR;
1832 }
1833
1834 var->get_handler = v->get_handler;
1835 var->data = v->data;
1836 }
1837
1838 return NGX_OK;
1839 }
1840
1841
1842 static void *
1843 ngx_http_fastcgi_create_loc_conf(ngx_conf_t *cf)
1844 {
1845 ngx_http_fastcgi_loc_conf_t *conf;
1846
1847 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_fastcgi_loc_conf_t));
1848 if (conf == NULL) {
1849 return NULL;
1850 }
1851
1852 /*
1853 * set by ngx_pcalloc():
1854 *
1855 * conf->upstream.bufs.num = 0;
1856 * conf->upstream.ignore_headers = 0;
1857 * conf->upstream.next_upstream = 0;
1858 * conf->upstream.cache_use_stale = 0;
1859 * conf->upstream.cache_methods = 0;
1860 * conf->upstream.temp_path = NULL;
1861 * conf->upstream.hide_headers_hash = { NULL, 0 };
1862 * conf->upstream.uri = { 0, NULL };
1863 * conf->upstream.location = NULL;
1864 * conf->upstream.store_lengths = NULL;
1865 * conf->upstream.store_values = NULL;
1866 *
1867 * conf->index.len = 0;
1868 * conf->index.data = NULL;
1869 */
1870
1871 conf->upstream.store = NGX_CONF_UNSET;
1872 conf->upstream.store_access = NGX_CONF_UNSET_UINT;
1873 conf->upstream.buffering = NGX_CONF_UNSET;
1874 conf->upstream.ignore_client_abort = NGX_CONF_UNSET;
1875
1876 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC;
1877 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC;
1878 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC;
1879
1880 conf->upstream.send_lowat = NGX_CONF_UNSET_SIZE;
1881 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE;
1882
1883 conf->upstream.busy_buffers_size_conf = NGX_CONF_UNSET_SIZE;
1884 conf->upstream.max_temp_file_size_conf = NGX_CONF_UNSET_SIZE;
1885 conf->upstream.temp_file_write_size_conf = NGX_CONF_UNSET_SIZE;
1886
1887 conf->upstream.pass_request_headers = NGX_CONF_UNSET;
1888 conf->upstream.pass_request_body = NGX_CONF_UNSET;
1889
1890 #if (NGX_HTTP_CACHE)
1891 conf->upstream.cache = NGX_CONF_UNSET_PTR;
1892 conf->upstream.cache_min_uses = NGX_CONF_UNSET_UINT;
1893 conf->upstream.cache_valid = NGX_CONF_UNSET_PTR;
1894 #endif
1895
1896 conf->upstream.hide_headers = NGX_CONF_UNSET_PTR;
1897 conf->upstream.pass_headers = NGX_CONF_UNSET_PTR;
1898
1899 conf->upstream.intercept_errors = NGX_CONF_UNSET;
1900
1901 /* "fastcgi_cyclic_temp_file" is disabled */
1902 conf->upstream.cyclic_temp_file = 0;
1903
1904 conf->catch_stderr = NGX_CONF_UNSET_PTR;
1905
1906 return conf;
1907 }
1908
1909
1910 static char *
1911 ngx_http_fastcgi_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
1912 {
1913 ngx_http_fastcgi_loc_conf_t *prev = parent;
1914 ngx_http_fastcgi_loc_conf_t *conf = child;
1915
1916 u_char *p;
1917 size_t size;
1918 uintptr_t *code;
1919 ngx_str_t *h;
1920 ngx_uint_t i;
1921 ngx_keyval_t *src;
1922 ngx_hash_init_t hash;
1923 ngx_http_script_compile_t sc;
1924 ngx_http_script_copy_code_t *copy;
1925
1926 if (conf->upstream.store != 0) {
1927 ngx_conf_merge_value(conf->upstream.store,
1928 prev->upstream.store, 0);
1929
1930 if (conf->upstream.store_lengths == NULL) {
1931 conf->upstream.store_lengths = prev->upstream.store_lengths;
1932 conf->upstream.store_values = prev->upstream.store_values;
1933 }
1934 }
1935
1936 ngx_conf_merge_uint_value(conf->upstream.store_access,
1937 prev->upstream.store_access, 0600);
1938
1939 ngx_conf_merge_value(conf->upstream.buffering,
1940 prev->upstream.buffering, 1);
1941
1942 ngx_conf_merge_value(conf->upstream.ignore_client_abort,
1943 prev->upstream.ignore_client_abort, 0);
1944
1945 ngx_conf_merge_msec_value(conf->upstream.connect_timeout,
1946 prev->upstream.connect_timeout, 60000);
1947
1948 ngx_conf_merge_msec_value(conf->upstream.send_timeout,
1949 prev->upstream.send_timeout, 60000);
1950
1951 ngx_conf_merge_msec_value(conf->upstream.read_timeout,
1952 prev->upstream.read_timeout, 60000);
1953
1954 ngx_conf_merge_size_value(conf->upstream.send_lowat,
1955 prev->upstream.send_lowat, 0);
1956
1957 ngx_conf_merge_size_value(conf->upstream.buffer_size,
1958 prev->upstream.buffer_size,
1959 (size_t) ngx_pagesize);
1960
1961
1962 ngx_conf_merge_bufs_value(conf->upstream.bufs, prev->upstream.bufs,
1963 8, ngx_pagesize);
1964
1965 if (conf->upstream.bufs.num < 2) {
1966 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
1967 "there must be at least 2 \"fastcgi_buffers\"");
1968 return NGX_CONF_ERROR;
1969 }
1970
1971
1972 size = conf->upstream.buffer_size;
1973 if (size < conf->upstream.bufs.size) {
1974 size = conf->upstream.bufs.size;
1975 }
1976
1977
1978 ngx_conf_merge_size_value(conf->upstream.busy_buffers_size_conf,
1979 prev->upstream.busy_buffers_size_conf,
1980 NGX_CONF_UNSET_SIZE);
1981
1982 if (conf->upstream.busy_buffers_size_conf == NGX_CONF_UNSET_SIZE) {
1983 conf->upstream.busy_buffers_size = 2 * size;
1984 } else {
1985 conf->upstream.busy_buffers_size =
1986 conf->upstream.busy_buffers_size_conf;
1987 }
1988
1989 if (conf->upstream.busy_buffers_size < size) {
1990 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
1991 "\"fastcgi_busy_buffers_size\" must be equal or bigger than "
1992 "maximum of the value of \"fastcgi_buffer_size\" and "
1993 "one of the \"fastcgi_buffers\"");
1994
1995 return NGX_CONF_ERROR;
1996 }
1997
1998 if (conf->upstream.busy_buffers_size
1999 > (conf->upstream.bufs.num - 1) * conf->upstream.bufs.size)
2000 {
2001 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2002 "\"fastcgi_busy_buffers_size\" must be less than "
2003 "the size of all \"fastcgi_buffers\" minus one buffer");
2004
2005 return NGX_CONF_ERROR;
2006 }
2007
2008
2009 ngx_conf_merge_size_value(conf->upstream.temp_file_write_size_conf,
2010 prev->upstream.temp_file_write_size_conf,
2011 NGX_CONF_UNSET_SIZE);
2012
2013 if (conf->upstream.temp_file_write_size_conf == NGX_CONF_UNSET_SIZE) {
2014 conf->upstream.temp_file_write_size = 2 * size;
2015 } else {
2016 conf->upstream.temp_file_write_size =
2017 conf->upstream.temp_file_write_size_conf;
2018 }
2019
2020 if (conf->upstream.temp_file_write_size < size) {
2021 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2022 "\"fastcgi_temp_file_write_size\" must be equal or bigger than "
2023 "maximum of the value of \"fastcgi_buffer_size\" and "
2024 "one of the \"fastcgi_buffers\"");
2025
2026 return NGX_CONF_ERROR;
2027 }
2028
2029
2030 ngx_conf_merge_size_value(conf->upstream.max_temp_file_size_conf,
2031 prev->upstream.max_temp_file_size_conf,
2032 NGX_CONF_UNSET_SIZE);
2033
2034 if (conf->upstream.max_temp_file_size_conf == NGX_CONF_UNSET_SIZE) {
2035 conf->upstream.max_temp_file_size = 1024 * 1024 * 1024;
2036 } else {
2037 conf->upstream.max_temp_file_size =
2038 conf->upstream.max_temp_file_size_conf;
2039 }
2040
2041 if (conf->upstream.max_temp_file_size != 0
2042 && conf->upstream.max_temp_file_size < size)
2043 {
2044 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2045 "\"fastcgi_max_temp_file_size\" must be equal to zero to disable "
2046 "the temporary files usage or must be equal or bigger than "
2047 "maximum of the value of \"fastcgi_buffer_size\" and "
2048 "one of the \"fastcgi_buffers\"");
2049
2050 return NGX_CONF_ERROR;
2051 }
2052
2053
2054 ngx_conf_merge_bitmask_value(conf->upstream.ignore_headers,
2055 prev->upstream.ignore_headers,
2056 NGX_CONF_BITMASK_SET);
2057
2058
2059 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream,
2060 prev->upstream.next_upstream,
2061 (NGX_CONF_BITMASK_SET
2062 |NGX_HTTP_UPSTREAM_FT_ERROR
2063 |NGX_HTTP_UPSTREAM_FT_TIMEOUT));
2064
2065 if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) {
2066 conf->upstream.next_upstream = NGX_CONF_BITMASK_SET
2067 |NGX_HTTP_UPSTREAM_FT_OFF;
2068 }
2069
2070 if (ngx_conf_merge_path_value(cf, &conf->upstream.temp_path,
2071 prev->upstream.temp_path,
2072 &ngx_http_fastcgi_temp_path)
2073 != NGX_OK)
2074 {
2075 return NGX_CONF_ERROR;
2076 }
2077
2078 #if (NGX_HTTP_CACHE)
2079
2080 ngx_conf_merge_ptr_value(conf->upstream.cache,
2081 prev->upstream.cache, NULL);
2082
2083 if (conf->upstream.cache && conf->upstream.cache->data == NULL) {
2084 ngx_shm_zone_t *shm_zone;
2085
2086 shm_zone = conf->upstream.cache;
2087
2088 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2089 "\"fastcgi_cache\" zone \"%V\" is unknown",
2090 &shm_zone->shm.name);
2091
2092 return NGX_CONF_ERROR;
2093 }
2094
2095 ngx_conf_merge_uint_value(conf->upstream.cache_min_uses,
2096 prev->upstream.cache_min_uses, 1);
2097
2098 ngx_conf_merge_bitmask_value(conf->upstream.cache_use_stale,
2099 prev->upstream.cache_use_stale,
2100 (NGX_CONF_BITMASK_SET
2101 |NGX_HTTP_UPSTREAM_FT_OFF));
2102
2103 if (conf->upstream.cache_use_stale & NGX_HTTP_UPSTREAM_FT_OFF) {
2104 conf->upstream.cache_use_stale = NGX_CONF_BITMASK_SET
2105 |NGX_HTTP_UPSTREAM_FT_OFF;
2106 }
2107
2108 if (conf->upstream.cache_methods == 0) {
2109 conf->upstream.cache_methods = prev->upstream.cache_methods;
2110 }
2111
2112 conf->upstream.cache_methods |= NGX_HTTP_GET|NGX_HTTP_HEAD;
2113
2114 ngx_conf_merge_ptr_value(conf->upstream.cache_valid,
2115 prev->upstream.cache_valid, NULL);
2116
2117 if (conf->cache_key.value.data == NULL) {
2118 conf->cache_key = prev->cache_key;
2119 }
2120
2121 #endif
2122
2123 ngx_conf_merge_value(conf->upstream.pass_request_headers,
2124 prev->upstream.pass_request_headers, 1);
2125 ngx_conf_merge_value(conf->upstream.pass_request_body,
2126 prev->upstream.pass_request_body, 1);
2127
2128 ngx_conf_merge_value(conf->upstream.intercept_errors,
2129 prev->upstream.intercept_errors, 0);
2130
2131 ngx_conf_merge_ptr_value(conf->catch_stderr, prev->catch_stderr, NULL);
2132
2133
2134 ngx_conf_merge_str_value(conf->index, prev->index, "");
2135
2136 hash.max_size = 512;
2137 hash.bucket_size = ngx_align(64, ngx_cacheline_size);
2138 hash.name = "fastcgi_hide_headers_hash";
2139
2140 #if (NGX_HTTP_CACHE)
2141
2142 h = conf->upstream.cache ? ngx_http_fastcgi_hide_cache_headers:
2143 ngx_http_fastcgi_hide_headers;
2144 #else
2145
2146 h = ngx_http_fastcgi_hide_headers;
2147
2148 #endif
2149
2150 if (ngx_http_upstream_hide_headers_hash(cf, &conf->upstream,
2151 &prev->upstream, h, &hash)
2152 != NGX_OK)
2153 {
2154 return NGX_CONF_ERROR;
2155 }
2156
2157 if (conf->upstream.upstream == NULL) {
2158 conf->upstream.upstream = prev->upstream.upstream;
2159 }
2160
2161 if (conf->fastcgi_lengths == NULL) {
2162 conf->fastcgi_lengths = prev->fastcgi_lengths;
2163 conf->fastcgi_values = prev->fastcgi_values;
2164 }
2165
2166 #if (NGX_PCRE)
2167 if (conf->split_regex == NULL) {
2168 conf->split_regex = prev->split_regex;
2169 conf->split_name = prev->split_name;
2170 }
2171 #endif
2172
2173 if (conf->params_source == NULL) {
2174 conf->flushes = prev->flushes;
2175 conf->params_len = prev->params_len;
2176 conf->params = prev->params;
2177 conf->params_source = prev->params_source;
2178
2179 if (conf->params_source == NULL) {
2180 return NGX_CONF_OK;
2181 }
2182 }
2183
2184 conf->params_len = ngx_array_create(cf->pool, 64, 1);
2185 if (conf->params_len == NULL) {
2186 return NGX_CONF_ERROR;
2187 }
2188
2189 conf->params = ngx_array_create(cf->pool, 512, 1);
2190 if (conf->params == NULL) {
2191 return NGX_CONF_ERROR;
2192 }
2193
2194 src = conf->params_source->elts;
2195 for (i = 0; i < conf->params_source->nelts; i++) {
2196
2197 if (ngx_http_script_variables_count(&src[i].value) == 0) {
2198 copy = ngx_array_push_n(conf->params_len,
2199 sizeof(ngx_http_script_copy_code_t));
2200 if (copy == NULL) {
2201 return NGX_CONF_ERROR;
2202 }
2203
2204 copy->code = (ngx_http_script_code_pt)
2205 ngx_http_script_copy_len_code;
2206 copy->len = src[i].key.len;
2207
2208
2209 copy = ngx_array_push_n(conf->params_len,
2210 sizeof(ngx_http_script_copy_code_t));
2211 if (copy == NULL) {
2212 return NGX_CONF_ERROR;
2213 }
2214
2215 copy->code = (ngx_http_script_code_pt)
2216 ngx_http_script_copy_len_code;
2217 copy->len = src[i].value.len;
2218
2219
2220 size = (sizeof(ngx_http_script_copy_code_t)
2221 + src[i].key.len + src[i].value.len
2222 + sizeof(uintptr_t) - 1)
2223 & ~(sizeof(uintptr_t) - 1);
2224
2225 copy = ngx_array_push_n(conf->params, size);
2226 if (copy == NULL) {
2227 return NGX_CONF_ERROR;
2228 }
2229
2230 copy->code = ngx_http_script_copy_code;
2231 copy->len = src[i].key.len + src[i].value.len;
2232
2233 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
2234
2235 p = ngx_cpymem(p, src[i].key.data, src[i].key.len);
2236 ngx_memcpy(p, src[i].value.data, src[i].value.len);
2237
2238 } else {
2239 copy = ngx_array_push_n(conf->params_len,
2240 sizeof(ngx_http_script_copy_code_t));
2241 if (copy == NULL) {
2242 return NGX_CONF_ERROR;
2243 }
2244
2245 copy->code = (ngx_http_script_code_pt)
2246 ngx_http_script_copy_len_code;
2247 copy->len = src[i].key.len;
2248
2249
2250 size = (sizeof(ngx_http_script_copy_code_t)
2251 + src[i].key.len + sizeof(uintptr_t) - 1)
2252 & ~(sizeof(uintptr_t) - 1);
2253
2254 copy = ngx_array_push_n(conf->params, size);
2255 if (copy == NULL) {
2256 return NGX_CONF_ERROR;
2257 }
2258
2259 copy->code = ngx_http_script_copy_code;
2260 copy->len = src[i].key.len;
2261
2262 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
2263 ngx_memcpy(p, src[i].key.data, src[i].key.len);
2264
2265
2266 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
2267
2268 sc.cf = cf;
2269 sc.source = &src[i].value;
2270 sc.flushes = &conf->flushes;
2271 sc.lengths = &conf->params_len;
2272 sc.values = &conf->params;
2273
2274 if (ngx_http_script_compile(&sc) != NGX_OK) {
2275 return NGX_CONF_ERROR;
2276 }
2277 }
2278
2279 code = ngx_array_push_n(conf->params_len, sizeof(uintptr_t));
2280 if (code == NULL) {
2281 return NGX_CONF_ERROR;
2282 }
2283
2284 *code = (uintptr_t) NULL;
2285
2286
2287 code = ngx_array_push_n(conf->params, sizeof(uintptr_t));
2288 if (code == NULL) {
2289 return NGX_CONF_ERROR;
2290 }
2291
2292 *code = (uintptr_t) NULL;
2293 }
2294
2295 code = ngx_array_push_n(conf->params_len, sizeof(uintptr_t));
2296 if (code == NULL) {
2297 return NGX_CONF_ERROR;
2298 }
2299
2300 *code = (uintptr_t) NULL;
2301
2302 return NGX_CONF_OK;
2303 }
2304
2305
2306 static ngx_int_t
2307 ngx_http_fastcgi_script_name_variable(ngx_http_request_t *r,
2308 ngx_http_variable_value_t *v, uintptr_t data)
2309 {
2310 u_char *p;
2311 ngx_http_fastcgi_ctx_t *f;
2312 ngx_http_fastcgi_loc_conf_t *flcf;
2313
2314 flcf = ngx_http_get_module_loc_conf(r, ngx_http_fastcgi_module);
2315
2316 f = ngx_http_fastcgi_split(r, flcf);
2317
2318 if (f == NULL) {
2319 return NGX_ERROR;
2320 }
2321
2322 if (f->script_name.len == 0
2323 || f->script_name.data[f->script_name.len - 1] != '/')
2324 {
2325 v->len = f->script_name.len;
2326 v->valid = 1;
2327 v->no_cacheable = 0;
2328 v->not_found = 0;
2329 v->data = f->script_name.data;
2330
2331 return NGX_OK;
2332 }
2333
2334 v->len = f->script_name.len + flcf->index.len;
2335
2336 v->data = ngx_pnalloc(r->pool, v->len);
2337 if (v->data == NULL) {
2338 return NGX_ERROR;
2339 }
2340
2341 p = ngx_copy(v->data, f->script_name.data, f->script_name.len);
2342 ngx_memcpy(p, flcf->index.data, flcf->index.len);
2343
2344 return NGX_OK;
2345 }
2346
2347
2348 static ngx_int_t
2349 ngx_http_fastcgi_path_info_variable(ngx_http_request_t *r,
2350 ngx_http_variable_value_t *v, uintptr_t data)
2351 {
2352 ngx_http_fastcgi_ctx_t *f;
2353 ngx_http_fastcgi_loc_conf_t *flcf;
2354
2355 flcf = ngx_http_get_module_loc_conf(r, ngx_http_fastcgi_module);
2356
2357 f = ngx_http_fastcgi_split(r, flcf);
2358
2359 if (f == NULL) {
2360 return NGX_ERROR;
2361 }
2362
2363 v->len = f->path_info.len;
2364 v->valid = 1;
2365 v->no_cacheable = 0;
2366 v->not_found = 0;
2367 v->data = f->path_info.data;
2368
2369 return NGX_OK;
2370 }
2371
2372
2373 static ngx_http_fastcgi_ctx_t *
2374 ngx_http_fastcgi_split(ngx_http_request_t *r, ngx_http_fastcgi_loc_conf_t *flcf)
2375 {
2376 ngx_http_fastcgi_ctx_t *f;
2377 #if (NGX_PCRE)
2378 ngx_int_t n;
2379 int captures[(1 + 2) * 3];
2380
2381 f = ngx_http_get_module_ctx(r, ngx_http_fastcgi_module);
2382
2383 if (f == NULL) {
2384 f = ngx_pcalloc(r->pool, sizeof(ngx_http_fastcgi_ctx_t));
2385 if (f == NULL) {
2386 return NULL;
2387 }
2388
2389 ngx_http_set_ctx(r, f, ngx_http_fastcgi_module);
2390 }
2391
2392 if (f->script_name.len) {
2393 return f;
2394 }
2395
2396 if (flcf->split_regex == NULL) {
2397 f->script_name = r->uri;
2398 return f;
2399 }
2400
2401 n = ngx_regex_exec(flcf->split_regex, &r->uri, captures, (1 + 2) * 3);
2402
2403 if (n == NGX_REGEX_NO_MATCHED) {
2404 f->script_name = r->uri;
2405 return f;
2406 }
2407
2408 if (n < 0) {
2409 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
2410 ngx_regex_exec_n " failed: %d on \"%V\" using \"%V\"",
2411 n, &r->uri, &flcf->split_name);
2412 return NULL;
2413 }
2414
2415 /* match */
2416
2417 f->script_name.len = captures[3] - captures[2];
2418 f->script_name.data = r->uri.data;
2419
2420 f->path_info.len = captures[5] - captures[4];
2421 f->path_info.data = r->uri.data + f->script_name.len;
2422
2423 return f;
2424
2425 #else
2426
2427 f = ngx_http_get_module_ctx(r, ngx_http_fastcgi_module);
2428
2429 if (f == NULL) {
2430 f = ngx_pcalloc(r->pool, sizeof(ngx_http_fastcgi_ctx_t));
2431 if (f == NULL) {
2432 return NULL;
2433 }
2434
2435 ngx_http_set_ctx(r, f, ngx_http_fastcgi_module);
2436 }
2437
2438 f->script_name = r->uri;
2439
2440 return f;
2441
2442 #endif
2443 }
2444
2445
2446 static char *
2447 ngx_http_fastcgi_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
2448 {
2449 ngx_http_fastcgi_loc_conf_t *flcf = conf;
2450
2451 ngx_url_t u;
2452 ngx_str_t *value, *url;
2453 ngx_uint_t n;
2454 ngx_http_core_loc_conf_t *clcf;
2455 ngx_http_script_compile_t sc;
2456
2457 if (flcf->upstream.upstream || flcf->fastcgi_lengths) {
2458 return "is duplicate";
2459 }
2460
2461 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module);
2462
2463 clcf->handler = ngx_http_fastcgi_handler;
2464
2465 if (clcf->name.data[clcf->name.len - 1] == '/') {
2466 clcf->auto_redirect = 1;
2467 }
2468
2469 value = cf->args->elts;
2470
2471 url = &value[1];
2472
2473 n = ngx_http_script_variables_count(url);
2474
2475 if (n) {
2476
2477 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
2478
2479 sc.cf = cf;
2480 sc.source = url;
2481 sc.lengths = &flcf->fastcgi_lengths;
2482 sc.values = &flcf->fastcgi_values;
2483 sc.variables = n;
2484 sc.complete_lengths = 1;
2485 sc.complete_values = 1;
2486
2487 if (ngx_http_script_compile(&sc) != NGX_OK) {
2488 return NGX_CONF_ERROR;
2489 }
2490
2491 return NGX_CONF_OK;
2492 }
2493
2494 ngx_memzero(&u, sizeof(ngx_url_t));
2495
2496 u.url = value[1];
2497 u.no_resolve = 1;
2498
2499 flcf->upstream.upstream = ngx_http_upstream_add(cf, &u, 0);
2500 if (flcf->upstream.upstream == NULL) {
2501 return NGX_CONF_ERROR;
2502 }
2503
2504 return NGX_CONF_OK;
2505 }
2506
2507
2508 static char *
2509 ngx_http_fastcgi_split_path_info(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
2510 {
2511 #if (NGX_PCRE)
2512 ngx_http_fastcgi_loc_conf_t *flcf = conf;
2513
2514 ngx_int_t n;
2515 ngx_str_t *value, err;
2516 u_char errstr[NGX_MAX_CONF_ERRSTR];
2517
2518 value = cf->args->elts;
2519
2520 flcf->split_name = value[1];
2521
2522 err.len = NGX_MAX_CONF_ERRSTR;
2523 err.data = errstr;
2524
2525 flcf->split_regex = ngx_regex_compile(&value[1], 0, cf->pool, &err);
2526
2527 if (flcf->split_regex == NULL) {
2528 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "%s", err.data);
2529 return NGX_CONF_ERROR;
2530 }
2531
2532 n = ngx_regex_capture_count(flcf->split_regex);
2533
2534 if (n < 0) {
2535 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2536 ngx_regex_capture_count_n " failed for "
2537 "pattern \"%V\"", &value[1]);
2538 return NGX_CONF_ERROR;
2539 }
2540
2541 if (n != 2) {
2542 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2543 "pattern \"%V\" must have 2 captures", &value[1]);
2544 return NGX_CONF_ERROR;
2545 }
2546
2547 return NGX_CONF_OK;
2548
2549 #else
2550
2551 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2552 "\"%V\" requires PCRE library", &cmd->name);
2553 return NGX_CONF_ERROR;
2554
2555 #endif
2556 }
2557
2558
2559 static char *
2560 ngx_http_fastcgi_store(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
2561 {
2562 ngx_http_fastcgi_loc_conf_t *flcf = conf;
2563
2564 ngx_str_t *value;
2565 ngx_http_script_compile_t sc;
2566
2567 if (flcf->upstream.store != NGX_CONF_UNSET
2568 || flcf->upstream.store_lengths)
2569 {
2570 return "is duplicate";
2571 }
2572
2573 value = cf->args->elts;
2574
2575 if (ngx_strcmp(value[1].data, "off") == 0) {
2576 flcf->upstream.store = 0;
2577 return NGX_CONF_OK;
2578 }
2579
2580 #if (NGX_HTTP_CACHE)
2581
2582 if (flcf->upstream.cache != NGX_CONF_UNSET_PTR
2583 && flcf->upstream.cache != NULL)
2584 {
2585 return "is incompatible with \"fastcgi_cache\"";
2586 }
2587
2588 #endif
2589
2590 if (ngx_strcmp(value[1].data, "on") == 0) {
2591 flcf->upstream.store = 1;
2592 return NGX_CONF_OK;
2593 }
2594
2595 /* include the terminating '\0' into script */
2596 value[1].len++;
2597
2598 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
2599
2600 sc.cf = cf;
2601 sc.source = &value[1];
2602 sc.lengths = &flcf->upstream.store_lengths;
2603 sc.values = &flcf->upstream.store_values;
2604 sc.variables = ngx_http_script_variables_count(&value[1]);
2605 sc.complete_lengths = 1;
2606 sc.complete_values = 1;
2607
2608 if (ngx_http_script_compile(&sc) != NGX_OK) {
2609 return NGX_CONF_ERROR;
2610 }
2611
2612 return NGX_CONF_OK;
2613 }
2614
2615
2616 #if (NGX_HTTP_CACHE)
2617
2618 static char *
2619 ngx_http_fastcgi_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
2620 {
2621 ngx_http_fastcgi_loc_conf_t *flcf = conf;
2622
2623 ngx_str_t *value;
2624
2625 value = cf->args->elts;
2626
2627 if (flcf->upstream.cache != NGX_CONF_UNSET_PTR) {
2628 return "is duplicate";
2629 }
2630
2631 if (ngx_strcmp(value[1].data, "off") == 0) {
2632 flcf->upstream.cache = NULL;
2633 return NGX_CONF_OK;
2634 }
2635
2636 if (flcf->upstream.store > 0 || flcf->upstream.store_lengths) {
2637 return "is incompatible with \"fastcgi_store\"";
2638 }
2639
2640 flcf->upstream.cache = ngx_shared_memory_add(cf, &value[1], 0,
2641 &ngx_http_fastcgi_module);
2642 if (flcf->upstream.cache == NULL) {
2643 return NGX_CONF_ERROR;
2644 }
2645
2646 return NGX_CONF_OK;
2647 }
2648
2649
2650 static char *
2651 ngx_http_fastcgi_cache_key(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
2652 {
2653 ngx_http_fastcgi_loc_conf_t *flcf = conf;
2654
2655 ngx_str_t *value;
2656 ngx_http_compile_complex_value_t ccv;
2657
2658 value = cf->args->elts;
2659
2660 if (flcf->cache_key.value.len) {
2661 return "is duplicate";
2662 }
2663
2664 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
2665
2666 ccv.cf = cf;
2667 ccv.value = &value[1];
2668 ccv.complex_value = &flcf->cache_key;
2669
2670 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
2671 return NGX_CONF_ERROR;
2672 }
2673
2674 return NGX_CONF_OK;
2675 }
2676
2677 #endif
2678
2679
2680 static char *
2681 ngx_http_fastcgi_lowat_check(ngx_conf_t *cf, void *post, void *data)
2682 {
2683 #if (NGX_FREEBSD)
2684 ssize_t *np = data;
2685
2686 if ((u_long) *np >= ngx_freebsd_net_inet_tcp_sendspace) {
2687 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2688 "\"fastcgi_send_lowat\" must be less than %d "
2689 "(sysctl net.inet.tcp.sendspace)",
2690 ngx_freebsd_net_inet_tcp_sendspace);
2691
2692 return NGX_CONF_ERROR;
2693 }
2694
2695 #elif !(NGX_HAVE_SO_SNDLOWAT)
2696 ssize_t *np = data;
2697
2698 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
2699 "\"fastcgi_send_lowat\" is not supported, ignored");
2700
2701 *np = 0;
2702
2703 #endif
2704
2705 return NGX_CONF_OK;
2706 }
2707
2708
2709 static char *
2710 ngx_http_fastcgi_upstream_max_fails_unsupported(ngx_conf_t *cf,
2711 ngx_command_t *cmd, void *conf)
2712 {
2713 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2714 "\"fastcgi_upstream_max_fails\" is not supported, "
2715 "use the \"max_fails\" parameter of the \"server\" directive ",
2716 "inside the \"upstream\" block");
2717
2718 return NGX_CONF_ERROR;
2719 }
2720
2721
2722 static char *
2723 ngx_http_fastcgi_upstream_fail_timeout_unsupported(ngx_conf_t *cf,
2724 ngx_command_t *cmd, void *conf)
2725 {
2726 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2727 "\"fastcgi_upstream_fail_timeout\" is not supported, "
2728 "use the \"fail_timeout\" parameter of the \"server\" directive ",
2729 "inside the \"upstream\" block");
2730
2731 return NGX_CONF_ERROR;
2732 }
2733
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