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comparison src/http/modules/ngx_http_uwsgi_module.c @ 3541:21452748d165

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import original ngx_http_uwsgi_module version
author Igor Sysoev <igor@sysoev.ru>
date Tue, 01 Jun 2010 15:53:11 +0000
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children 9bf51b3fc1c1
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3540:2bf7f72f26b7 3541:21452748d165
1
2 /*
3 * Copyright (C) Unbit S.a.s. 2009-2010
4 *
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26
27
28
29 * heavily based on Manlio's mod_scgi, mod_fastcgi and mod_proxy of nginx 0.7.x
30
31 */
32
33
34 #include <ngx_config.h>
35 #include <ngx_core.h>
36 #include <ngx_http.h>
37
38 #define NGX_HTTP_UWSGI_TEMP_PATH "uwsgi_temp"
39
40 typedef struct {
41 ngx_http_upstream_conf_t upstream;
42
43 ngx_array_t *flushes;
44 ngx_array_t *params_len;
45 ngx_array_t *params;
46 ngx_array_t *params_source;
47
48 ngx_array_t *uwsgi_lengths;
49 ngx_array_t *uwsgi_values;
50
51 ngx_str_t uwsgi_string ;
52
53 u_char modifier1;
54 u_char modifier2;
55
56 } ngx_http_uwsgi_loc_conf_t;
57
58 typedef struct {
59 ngx_uint_t status;
60 ngx_uint_t status_count;
61 u_char *status_start;
62 u_char *status_end;
63 } ngx_http_uwsgi_ctx_t;
64
65 #define NGX_HTTP_XCGI_PARSE_NO_HEADER 20
66
67 #ifndef NGX_HAVE_LITTLE_ENDIAN
68 static uint16_t
69 uwsgi_swap16 (uint16_t x)
70 {
71 return (uint16_t) ((x & 0xff) << 8 | (x & 0xff00) >> 8);
72 }
73 #endif
74
75
76
77 static ngx_int_t ngx_http_uwsgi_eval (ngx_http_request_t * r,
78 ngx_http_uwsgi_loc_conf_t * uwcf);
79 static ngx_int_t ngx_http_uwsgi_create_request (ngx_http_request_t * r);
80 static ngx_int_t ngx_http_uwsgi_reinit_request (ngx_http_request_t * r);
81 static ngx_int_t ngx_http_uwsgi_process_status_line (ngx_http_request_t * r);
82 static ngx_int_t ngx_http_uwsgi_parse_status_line (ngx_http_request_t * r,
83 ngx_http_uwsgi_ctx_t *
84 ctx);
85 static ngx_int_t ngx_http_uwsgi_process_header (ngx_http_request_t * r);
86 static ngx_int_t ngx_http_uwsgi_process_header (ngx_http_request_t * r);
87 static void ngx_http_uwsgi_abort_request (ngx_http_request_t * r);
88 static void ngx_http_uwsgi_finalize_request (ngx_http_request_t * r,
89 ngx_int_t rc);
90
91 static char *ngx_http_uwsgi_modifier1 (ngx_conf_t * cf, ngx_command_t * cmd,
92 void *conf);
93
94 static char *ngx_http_uwsgi_modifier2 (ngx_conf_t * cf, ngx_command_t * cmd,
95 void *conf);
96
97 static ngx_int_t ngx_http_uwsgi_add_variables (ngx_conf_t * cf);
98 static void *ngx_http_uwsgi_create_loc_conf (ngx_conf_t * cf);
99 static char *ngx_http_uwsgi_merge_loc_conf (ngx_conf_t * cf,
100 void *parent, void *child);
101
102 static char *ngx_http_uwsgi_pass (ngx_conf_t * cf, ngx_command_t * cmd,
103 void *conf);
104
105
106 static ngx_conf_bitmask_t ngx_http_uwsgi_next_upstream_masks[] = {
107 {ngx_string ("error"), NGX_HTTP_UPSTREAM_FT_ERROR},
108 {ngx_string ("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT},
109 {ngx_string ("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER},
110 {ngx_string ("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500},
111 {ngx_string ("http_503"), NGX_HTTP_UPSTREAM_FT_HTTP_503},
112 {ngx_string ("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404},
113 {ngx_string ("updating"), NGX_HTTP_UPSTREAM_FT_UPDATING},
114 {ngx_string ("off"), NGX_HTTP_UPSTREAM_FT_OFF},
115 {ngx_null_string, 0}
116 };
117
118
119 static ngx_conf_bitmask_t ngx_http_uwsgi_ignore_headers_masks[] = {
120 {ngx_string ("X-Accel-Redirect"), NGX_HTTP_UPSTREAM_IGN_XA_REDIRECT},
121 {ngx_string ("X-Accel-Expires"), NGX_HTTP_UPSTREAM_IGN_XA_EXPIRES},
122 {ngx_string ("Expires"), NGX_HTTP_UPSTREAM_IGN_EXPIRES},
123 {ngx_string ("Cache-Control"), NGX_HTTP_UPSTREAM_IGN_CACHE_CONTROL},
124 {ngx_null_string, 0}
125 };
126
127
128 ngx_module_t ngx_http_uwsgi_module;
129
130
131 static ngx_command_t ngx_http_uwsgi_commands[] = {
132
133 {ngx_string ("uwsgi_pass"),
134 NGX_HTTP_LOC_CONF | NGX_HTTP_LIF_CONF | NGX_CONF_TAKE1,
135 ngx_http_uwsgi_pass,
136 NGX_HTTP_LOC_CONF_OFFSET,
137 0,
138 NULL},
139
140 {ngx_string ("uwsgi_modifier1"),
141 NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
142 NGX_CONF_TAKE1,
143 ngx_http_uwsgi_modifier1,
144 NGX_HTTP_LOC_CONF_OFFSET,
145 0,
146 NULL},
147
148 {ngx_string ("uwsgi_modifier2"),
149 NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
150 NGX_CONF_TAKE1,
151 ngx_http_uwsgi_modifier2,
152 NGX_HTTP_LOC_CONF_OFFSET,
153 0,
154 NULL},
155
156 {ngx_string ("uwsgi_ignore_client_abort"),
157 NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
158 NGX_CONF_FLAG,
159 ngx_conf_set_flag_slot,
160 NGX_HTTP_LOC_CONF_OFFSET,
161 offsetof (ngx_http_uwsgi_loc_conf_t, upstream.ignore_client_abort),
162 NULL},
163
164 {ngx_string ("uwsgi_connect_timeout"),
165 NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
166 NGX_CONF_TAKE1,
167 ngx_conf_set_msec_slot,
168 NGX_HTTP_LOC_CONF_OFFSET,
169 offsetof (ngx_http_uwsgi_loc_conf_t, upstream.connect_timeout),
170 NULL},
171
172 {ngx_string ("uwsgi_send_timeout"),
173 NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
174 NGX_CONF_TAKE1,
175 ngx_conf_set_msec_slot,
176 NGX_HTTP_LOC_CONF_OFFSET,
177 offsetof (ngx_http_uwsgi_loc_conf_t, upstream.send_timeout),
178 NULL},
179
180 {ngx_string ("uwsgi_buffer_size"),
181 NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
182 NGX_CONF_TAKE1,
183 ngx_conf_set_size_slot,
184 NGX_HTTP_LOC_CONF_OFFSET,
185 offsetof (ngx_http_uwsgi_loc_conf_t, upstream.buffer_size),
186 NULL},
187
188 {ngx_string ("uwsgi_pass_request_headers"),
189 NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
190 NGX_CONF_FLAG,
191 ngx_conf_set_flag_slot,
192 NGX_HTTP_LOC_CONF_OFFSET,
193 offsetof (ngx_http_uwsgi_loc_conf_t, upstream.pass_request_headers),
194 NULL},
195
196 {ngx_string ("uwsgi_pass_request_body"),
197 NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
198 NGX_CONF_FLAG,
199 ngx_conf_set_flag_slot,
200 NGX_HTTP_LOC_CONF_OFFSET,
201 offsetof (ngx_http_uwsgi_loc_conf_t, upstream.pass_request_body),
202 NULL},
203
204 {ngx_string ("uwsgi_intercept_errors"),
205 NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
206 NGX_CONF_FLAG,
207 ngx_conf_set_flag_slot,
208 NGX_HTTP_LOC_CONF_OFFSET,
209 offsetof (ngx_http_uwsgi_loc_conf_t, upstream.intercept_errors),
210 NULL},
211
212 {ngx_string ("uwsgi_read_timeout"),
213 NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
214 NGX_CONF_TAKE1,
215 ngx_conf_set_msec_slot,
216 NGX_HTTP_LOC_CONF_OFFSET,
217 offsetof (ngx_http_uwsgi_loc_conf_t, upstream.read_timeout),
218 NULL},
219
220 {ngx_string ("uwsgi_buffers"),
221 NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
222 NGX_CONF_TAKE2,
223 ngx_conf_set_bufs_slot,
224 NGX_HTTP_LOC_CONF_OFFSET,
225 offsetof (ngx_http_uwsgi_loc_conf_t, upstream.bufs),
226 NULL},
227
228 {ngx_string ("uwsgi_busy_buffers_size"),
229 NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
230 NGX_CONF_TAKE1,
231 ngx_conf_set_size_slot,
232 NGX_HTTP_LOC_CONF_OFFSET,
233 offsetof (ngx_http_uwsgi_loc_conf_t, upstream.busy_buffers_size_conf),
234 NULL},
235
236 {ngx_string ("uwsgi_temp_path"),
237 NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
238 NGX_CONF_TAKE1234,
239 ngx_conf_set_path_slot,
240 NGX_HTTP_LOC_CONF_OFFSET,
241 offsetof (ngx_http_uwsgi_loc_conf_t, upstream.temp_path),
242 NULL},
243
244 {ngx_string ("uwsgi_max_temp_file_size"),
245 NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
246 NGX_CONF_TAKE1,
247 ngx_conf_set_size_slot,
248 NGX_HTTP_LOC_CONF_OFFSET,
249 offsetof (ngx_http_uwsgi_loc_conf_t, upstream.max_temp_file_size_conf),
250 NULL},
251
252 {ngx_string ("uwsgi_temp_file_write_size"),
253 NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
254 NGX_CONF_TAKE1,
255 ngx_conf_set_size_slot,
256 NGX_HTTP_LOC_CONF_OFFSET,
257 offsetof (ngx_http_uwsgi_loc_conf_t, upstream.temp_file_write_size_conf),
258 NULL},
259
260 {ngx_string ("uwsgi_next_upstream"),
261 NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
262 NGX_CONF_1MORE,
263 ngx_conf_set_bitmask_slot,
264 NGX_HTTP_LOC_CONF_OFFSET,
265 offsetof (ngx_http_uwsgi_loc_conf_t, upstream.next_upstream),
266 &ngx_http_uwsgi_next_upstream_masks},
267
268 {ngx_string ("uwsgi_param"),
269 NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
270 NGX_CONF_TAKE2,
271 ngx_conf_set_keyval_slot,
272 NGX_HTTP_LOC_CONF_OFFSET,
273 offsetof (ngx_http_uwsgi_loc_conf_t, params_source),
274 NULL},
275
276 { ngx_string("uwsgi_string"),
277 NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
278 NGX_CONF_TAKE1,
279 ngx_conf_set_str_slot,
280 NGX_HTTP_LOC_CONF_OFFSET,
281 offsetof(ngx_http_uwsgi_loc_conf_t, uwsgi_string),
282 NULL },
283
284 {ngx_string ("uwsgi_pass_header"),
285 NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
286 NGX_CONF_FLAG,
287 ngx_conf_set_str_array_slot,
288 NGX_HTTP_LOC_CONF_OFFSET,
289 offsetof (ngx_http_uwsgi_loc_conf_t, upstream.pass_headers),
290 NULL},
291
292 {ngx_string ("uwsgi_hide_header"),
293 NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
294 NGX_CONF_FLAG,
295 ngx_conf_set_str_array_slot,
296 NGX_HTTP_LOC_CONF_OFFSET,
297 offsetof (ngx_http_uwsgi_loc_conf_t, upstream.hide_headers),
298 NULL},
299
300 {ngx_string ("uwsgi_ignore_headers"),
301 NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF |
302 NGX_CONF_1MORE,
303 ngx_conf_set_bitmask_slot,
304 NGX_HTTP_LOC_CONF_OFFSET,
305 offsetof (ngx_http_uwsgi_loc_conf_t, upstream.ignore_headers),
306 &ngx_http_uwsgi_ignore_headers_masks},
307
308 ngx_null_command
309 };
310
311
312 static ngx_http_module_t ngx_http_uwsgi_module_ctx = {
313 ngx_http_uwsgi_add_variables, /* preconfiguration */
314 NULL, /* postconfiguration */
315
316 NULL, /* create main configuration */
317 NULL, /* init main configuration */
318
319 NULL, /* create server configuration */
320 NULL, /* merge server configuration */
321
322 ngx_http_uwsgi_create_loc_conf, /* create location configuration */
323 ngx_http_uwsgi_merge_loc_conf /* merge location configuration */
324 };
325
326
327 ngx_module_t ngx_http_uwsgi_module = {
328 NGX_MODULE_V1,
329 &ngx_http_uwsgi_module_ctx, /* module context */
330 ngx_http_uwsgi_commands, /* module directives */
331 NGX_HTTP_MODULE, /* module type */
332 NULL, /* init master */
333 NULL, /* init module */
334 NULL, /* init process */
335 NULL, /* init thread */
336 NULL, /* exit thread */
337 NULL, /* exit process */
338 NULL, /* exit master */
339 NGX_MODULE_V1_PADDING
340 };
341
342
343 static ngx_http_variable_t ngx_http_uwsgi_vars[] = {
344
345 {ngx_null_string, NULL, NULL, 0, 0, 0}
346 };
347
348
349 static ngx_str_t ngx_http_uwsgi_hide_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_null_string
357 };
358
359
360 static ngx_path_init_t ngx_http_uwsgi_temp_path = {
361 ngx_string (NGX_HTTP_UWSGI_TEMP_PATH), {1, 2, 0}
362 };
363
364
365 static ngx_int_t
366 ngx_http_uwsgi_handler (ngx_http_request_t * r)
367 {
368 ngx_int_t rc;
369 ngx_http_upstream_t *u;
370 ngx_http_uwsgi_ctx_t *f;
371 ngx_http_uwsgi_loc_conf_t *uwcf;
372
373 if (r->subrequest_in_memory) {
374 ngx_log_error (NGX_LOG_ALERT, r->connection->log, 0,
375 "ngx_http_uwsgi_module does not support "
376 "subrequest in memory");
377 return NGX_HTTP_INTERNAL_SERVER_ERROR;
378 }
379
380 if (ngx_http_upstream_create (r) != NGX_OK) {
381 return NGX_HTTP_INTERNAL_SERVER_ERROR;
382 }
383
384 f = ngx_pcalloc (r->pool, sizeof (ngx_http_uwsgi_ctx_t));
385 if (f == NULL) {
386 return NGX_HTTP_INTERNAL_SERVER_ERROR;
387 }
388
389 ngx_http_set_ctx (r, f, ngx_http_uwsgi_module);
390
391 uwcf = ngx_http_get_module_loc_conf (r, ngx_http_uwsgi_module);
392
393 if (uwcf->uwsgi_lengths) {
394 if (ngx_http_uwsgi_eval (r, uwcf) != NGX_OK) {
395 return NGX_HTTP_INTERNAL_SERVER_ERROR;
396 }
397 }
398
399 u = r->upstream;
400
401 u->schema.len = sizeof ("uwsgi://") - 1;
402 u->schema.data = (u_char *) "uwsgi://";
403
404 u->output.tag = (ngx_buf_tag_t) & ngx_http_uwsgi_module;
405
406 u->conf = &uwcf->upstream;
407
408 u->create_request = ngx_http_uwsgi_create_request;
409 u->reinit_request = ngx_http_uwsgi_reinit_request;
410 u->process_header = ngx_http_uwsgi_process_status_line;
411 u->abort_request = ngx_http_uwsgi_abort_request;
412 u->finalize_request = ngx_http_uwsgi_finalize_request;
413
414 u->buffering = 1;
415
416 u->pipe = ngx_pcalloc (r->pool, sizeof (ngx_event_pipe_t));
417 if (u->pipe == NULL) {
418 return NGX_HTTP_INTERNAL_SERVER_ERROR;
419 }
420
421 u->pipe->input_filter = ngx_event_pipe_copy_input_filter;
422 u->pipe->input_ctx = r;
423
424 rc = ngx_http_read_client_request_body (r, ngx_http_upstream_init);
425
426 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {
427 return rc;
428 }
429
430 return NGX_DONE;
431 }
432
433
434 static ngx_int_t
435 ngx_http_uwsgi_eval (ngx_http_request_t * r, ngx_http_uwsgi_loc_conf_t * uwcf)
436 {
437 ngx_url_t u;
438
439 ngx_memzero (&u, sizeof (ngx_url_t));
440
441 if (ngx_http_script_run (r, &u.url, uwcf->uwsgi_lengths->elts, 0,
442 uwcf->uwsgi_values->elts) == NULL) {
443 return NGX_ERROR;
444 }
445
446 u.no_resolve = 1;
447
448 if (ngx_parse_url (r->pool, &u) != NGX_OK) {
449 if (u.err) {
450 ngx_log_error (NGX_LOG_ERR, r->connection->log, 0,
451 "%s in upstream \"%V\"", u.err, &u.url);
452 }
453
454 return NGX_ERROR;
455 }
456
457 if (u.no_port) {
458 ngx_log_error (NGX_LOG_ERR, r->connection->log, 0,
459 "no port in upstream \"%V\"", &u.url);
460 return NGX_ERROR;
461 }
462
463 r->upstream->resolved = ngx_pcalloc (r->pool,
464 sizeof
465 (ngx_http_upstream_resolved_t));
466 if (r->upstream->resolved == NULL) {
467 return NGX_ERROR;
468 }
469
470 if (u.addrs && u.addrs[0].sockaddr) {
471 r->upstream->resolved->sockaddr = u.addrs[0].sockaddr;
472 r->upstream->resolved->socklen = u.addrs[0].socklen;
473 r->upstream->resolved->naddrs = 1;
474 r->upstream->resolved->host = u.addrs[0].name;
475
476 }
477 else {
478 r->upstream->resolved->host = u.host;
479 r->upstream->resolved->port = u.port;
480 }
481
482 return NGX_OK;
483 }
484
485
486 static ngx_int_t
487 ngx_http_uwsgi_create_request (ngx_http_request_t * r)
488 {
489 u_char ch, *pos, tmp[2];
490 size_t key_len, val_len;
491 uint16_t uwsgi_pkt_size, uwsgi_strlen;
492 ngx_uint_t i, n;
493 ngx_buf_t *b;
494 ngx_chain_t *cl, *body;
495 ngx_list_part_t *part;
496 ngx_table_elt_t *header;
497 ngx_http_script_code_pt code;
498 ngx_http_script_engine_t e, le;
499 ngx_http_uwsgi_loc_conf_t *uwcf;
500 ngx_http_script_len_code_pt lcode;
501
502 uwsgi_pkt_size = 0;
503
504 uwcf = ngx_http_get_module_loc_conf (r, ngx_http_uwsgi_module);
505
506 if (uwcf->params_len) {
507 ngx_memzero (&le, sizeof (ngx_http_script_engine_t));
508
509 ngx_http_script_flush_no_cacheable_variables (r, uwcf->flushes);
510 le.flushed = 1;
511
512 le.ip = uwcf->params_len->elts;
513 le.request = r;
514
515 while (*(uintptr_t *) le.ip) {
516
517 lcode = *(ngx_http_script_len_code_pt *) le.ip;
518 key_len = lcode (&le);
519
520 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode (&le)) {
521 lcode = *(ngx_http_script_len_code_pt *) le.ip;
522 }
523 le.ip += sizeof (uintptr_t);
524
525 uwsgi_pkt_size += 2 + key_len + 2 + val_len;
526 }
527 }
528
529 if (uwcf->upstream.pass_request_headers) {
530
531 part = &r->headers_in.headers.part;
532 header = part->elts;
533
534 for (i = 0; /* void */ ; i++) {
535
536 if (i >= part->nelts) {
537 if (part->next == NULL) {
538 break;
539 }
540
541 part = part->next;
542 header = part->elts;
543 i = 0;
544 }
545
546 uwsgi_pkt_size +=
547 2 + 5 + header[i].key.len + 2 + header[i].value.len;
548 }
549 }
550
551 if (uwcf->uwsgi_string.data && uwcf->uwsgi_string.len) {
552 uwsgi_pkt_size += uwcf->uwsgi_string.len ;
553 }
554
555
556 /* allow custom uwsgi packet
557 if (uwsgi_pkt_size > 0 && uwsgi_pkt_size < 2) {
558 ngx_log_error (NGX_LOG_ALERT, r->connection->log, 0,
559 "uwsgi request is too little: %uz", uwsgi_pkt_size);
560 return NGX_ERROR;
561 }
562 */
563
564 b = ngx_create_temp_buf (r->pool, uwsgi_pkt_size + 4);
565 if (b == NULL) {
566 return NGX_ERROR;
567 }
568
569 cl = ngx_alloc_chain_link (r->pool);
570 if (cl == NULL) {
571 return NGX_ERROR;
572 }
573
574 cl->buf = b;
575
576 *b->pos = uwcf->modifier1;
577 #ifndef NGX_HAVE_LITTLE_ENDIAN
578 uwsgi_pkt_size = uwsgi_swap16 (uwsgi_pkt_size);
579 #endif
580 b->last = ngx_cpymem (b->pos + 1, &uwsgi_pkt_size, 2);
581 *(b->pos + 3) = uwcf->modifier2;
582 b->last++;
583
584 if (uwcf->params_len) {
585 ngx_memzero (&e, sizeof (ngx_http_script_engine_t));
586
587 e.ip = uwcf->params->elts;
588 e.pos = b->last;
589 e.request = r;
590 e.flushed = 1;
591
592 le.ip = uwcf->params_len->elts;
593
594 while (*(uintptr_t *) le.ip) {
595
596 lcode = *(ngx_http_script_len_code_pt *) le.ip;
597 key_len = (u_char) lcode (&le);
598
599 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode (&le)) {
600 lcode = *(ngx_http_script_len_code_pt *) le.ip;
601 }
602 le.ip += sizeof (uintptr_t);
603
604 #ifndef NGX_HAVE_LITTLE_ENDIAN
605 uwsgi_strlen = uwsgi_swap16 (key_len);
606 #else
607 uwsgi_strlen = key_len;
608 #endif
609 e.pos = ngx_cpymem (e.pos, &uwsgi_strlen, 2);
610
611 while (*(uintptr_t *) e.ip) {
612 code = *(ngx_http_script_code_pt *) e.ip;
613 code ((ngx_http_script_engine_t *) & e);
614 }
615
616 pos = e.pos - val_len;
617 /* move memory */
618 for (i = 0; i < val_len; i += 2) {
619 e.pos = ngx_cpymem (tmp, pos + (i) + 2, 2);
620 e.pos = ngx_cpymem (pos + (i) + 2, pos, 2);
621 e.pos = ngx_cpymem (pos, tmp, 2);
622 }
623
624 e.pos = pos;
625
626 #ifndef NGX_HAVE_LITTLE_ENDIAN
627 uwsgi_strlen = uwsgi_swap16 (val_len);
628 #else
629 uwsgi_strlen = val_len;
630 #endif
631 e.pos = ngx_cpymem (e.pos, &uwsgi_strlen, 2);
632 e.pos += val_len;
633
634 e.ip += sizeof (uintptr_t);
635
636
637 }
638
639 b->last = e.pos;
640 }
641
642
643 if (uwcf->upstream.pass_request_headers) {
644
645 part = &r->headers_in.headers.part;
646 header = part->elts;
647
648 for (i = 0; /* void */ ; i++) {
649
650 if (i >= part->nelts) {
651 if (part->next == NULL) {
652 break;
653 }
654
655 part = part->next;
656 header = part->elts;
657 i = 0;
658 }
659
660 #ifndef NGX_HAVE_LITTLE_ENDIAN
661 uwsgi_strlen = uwsgi_swap16 (5 + header[i].key.len);
662 #else
663 uwsgi_strlen = 5 + header[i].key.len;
664 #endif
665 b->last = ngx_cpymem (b->last, &uwsgi_strlen, 2);
666 b->last = ngx_cpymem (b->last, "HTTP_", 5);
667 for (n = 0; n < header[i].key.len; n++) {
668 ch = header[i].key.data[n];
669
670 if (ch >= 'a' && ch <= 'z') {
671 ch &= ~0x20;
672
673 }
674 else if (ch == '-') {
675 ch = '_';
676 }
677
678 *b->last++ = ch;
679 }
680 #ifndef NGX_HAVE_LITTLE_ENDIAN
681 uwsgi_strlen = uwsgi_swap16 (header[i].value.len);
682 #else
683 uwsgi_strlen = header[i].value.len;
684 #endif
685 b->last = ngx_cpymem (b->last, &uwsgi_strlen, 2);
686 b->last =
687 ngx_copy (b->last, header[i].value.data, header[i].value.len);
688
689
690 }
691 }
692
693
694
695 if (uwcf->uwsgi_string.data && uwcf->uwsgi_string.len) {
696 b->last = ngx_copy(b->last, uwcf->uwsgi_string.data, uwcf->uwsgi_string.len);
697 }
698
699 if (uwcf->upstream.pass_request_body) {
700 body = r->upstream->request_bufs;
701 r->upstream->request_bufs = cl;
702
703 while (body) {
704 b = ngx_alloc_buf (r->pool);
705 if (b == NULL) {
706 return NGX_ERROR;
707 }
708
709 ngx_memcpy (b, body->buf, sizeof (ngx_buf_t));
710
711 cl->next = ngx_alloc_chain_link (r->pool);
712 if (cl->next == NULL) {
713 return NGX_ERROR;
714 }
715
716 cl = cl->next;
717 cl->buf = b;
718
719 body = body->next;
720 }
721
722 b->flush = 1;
723
724 }
725 else {
726 r->upstream->request_bufs = cl;
727 }
728
729 cl->next = NULL;
730
731 return NGX_OK;
732 }
733
734
735 static ngx_int_t
736 ngx_http_uwsgi_reinit_request (ngx_http_request_t * r)
737 {
738
739 ngx_http_uwsgi_ctx_t *s;
740
741 s = ngx_http_get_module_ctx (r, ngx_http_uwsgi_module);
742
743 if (s == NULL) {
744 return NGX_OK;
745 }
746
747 s->status = 0;
748 s->status_count = 0;
749 s->status_start = NULL;
750 s->status_end = NULL;
751
752 r->upstream->process_header = ngx_http_uwsgi_process_status_line;
753
754 return NGX_OK;
755 }
756
757 static ngx_int_t
758 ngx_http_uwsgi_parse_status_line (ngx_http_request_t * r,
759 ngx_http_uwsgi_ctx_t * ctx)
760 {
761 u_char ch;
762 u_char *p;
763 ngx_http_upstream_t *u;
764 enum {
765 sw_start = 0,
766 sw_H,
767 sw_HT,
768 sw_HTT,
769 sw_HTTP,
770 sw_first_major_digit,
771 sw_major_digit,
772 sw_first_minor_digit,
773 sw_minor_digit,
774 sw_status,
775 sw_space_after_status,
776 sw_status_text,
777 sw_almost_done
778 } state;
779
780 u = r->upstream;
781
782 state = r->state;
783
784 for (p = u->buffer.pos; p < u->buffer.last; p++) {
785 ch = *p;
786
787 switch (state) {
788
789 /* "HTTP/" */
790 case sw_start:
791 switch (ch) {
792 case 'H':
793 state = sw_H;
794 break;
795 default:
796 return NGX_HTTP_XCGI_PARSE_NO_HEADER;
797 }
798 break;
799
800 case sw_H:
801 switch (ch) {
802 case 'T':
803 state = sw_HT;
804 break;
805 default:
806 return NGX_HTTP_XCGI_PARSE_NO_HEADER;
807 }
808 break;
809
810 case sw_HT:
811 switch (ch) {
812 case 'T':
813 state = sw_HTT;
814 break;
815 default:
816 return NGX_HTTP_XCGI_PARSE_NO_HEADER;
817 }
818 break;
819
820 case sw_HTT:
821 switch (ch) {
822 case 'P':
823 state = sw_HTTP;
824 break;
825 default:
826 return NGX_HTTP_XCGI_PARSE_NO_HEADER;
827 }
828 break;
829
830 case sw_HTTP:
831 switch (ch) {
832 case '/':
833 state = sw_first_major_digit;
834 break;
835 default:
836 return NGX_HTTP_XCGI_PARSE_NO_HEADER;
837 }
838 break;
839
840 /* the first digit of major HTTP version */
841 case sw_first_major_digit:
842 if (ch < '1' || ch > '9') {
843 return NGX_HTTP_XCGI_PARSE_NO_HEADER;
844 }
845
846 state = sw_major_digit;
847 break;
848
849 /* the major HTTP version or dot */
850 case sw_major_digit:
851 if (ch == '.') {
852 state = sw_first_minor_digit;
853 break;
854 }
855
856 if (ch < '0' || ch > '9') {
857 return NGX_HTTP_XCGI_PARSE_NO_HEADER;
858 }
859
860 break;
861
862 /* the first digit of minor HTTP version */
863 case sw_first_minor_digit:
864 if (ch < '0' || ch > '9') {
865 return NGX_HTTP_XCGI_PARSE_NO_HEADER;
866 }
867
868 state = sw_minor_digit;
869 break;
870
871 /* the minor HTTP version or the end of the request line */
872 case sw_minor_digit:
873 if (ch == ' ') {
874 state = sw_status;
875 break;
876 }
877
878 if (ch < '0' || ch > '9') {
879 return NGX_HTTP_XCGI_PARSE_NO_HEADER;
880 }
881
882 break;
883
884 /* HTTP status code */
885 case sw_status:
886 if (ch == ' ') {
887 break;
888 }
889
890 if (ch < '0' || ch > '9') {
891 return NGX_HTTP_XCGI_PARSE_NO_HEADER;
892 }
893
894 ctx->status = ctx->status * 10 + ch - '0';
895
896 if (++ctx->status_count == 3) {
897 state = sw_space_after_status;
898 ctx->status_start = p - 2;
899 }
900
901 break;
902
903 /* space or end of line */
904 case sw_space_after_status:
905 switch (ch) {
906 case ' ':
907 state = sw_status_text;
908 break;
909 case '.': /* IIS may send 403.1, 403.2, etc */
910 state = sw_status_text;
911 break;
912 case CR:
913 state = sw_almost_done;
914 break;
915 case LF:
916 goto done;
917 default:
918 return NGX_HTTP_XCGI_PARSE_NO_HEADER;
919 }
920 break;
921
922 /* any text until end of line */
923 case sw_status_text:
924 switch (ch) {
925 case CR:
926 state = sw_almost_done;
927
928 break;
929 case LF:
930 goto done;
931 }
932 break;
933
934 /* end of status line */
935 case sw_almost_done:
936 ctx->status_end = p - 1;
937 switch (ch) {
938 case LF:
939 goto done;
940 default:
941 return NGX_HTTP_XCGI_PARSE_NO_HEADER;
942 }
943 }
944 }
945
946 u->buffer.pos = p;
947 r->state = state;
948
949 return NGX_AGAIN;
950
951 done:
952
953 u->buffer.pos = p + 1;
954
955 if (ctx->status_end == NULL) {
956 ctx->status_end = p;
957 }
958
959 r->state = sw_start;
960
961 return NGX_OK;
962 }
963
964
965 static ngx_int_t
966 ngx_http_uwsgi_process_status_line (ngx_http_request_t * r)
967 {
968 ngx_int_t rc;
969 ngx_http_upstream_t *u;
970 ngx_http_uwsgi_ctx_t *ctx;
971
972 ctx = ngx_http_get_module_ctx (r, ngx_http_uwsgi_module);
973
974 if (ctx == NULL) {
975 return NGX_ERROR;
976 }
977
978 rc = ngx_http_uwsgi_parse_status_line (r, ctx);
979
980 if (rc == NGX_AGAIN) {
981 return rc;
982 }
983
984 u = r->upstream;
985
986 if (rc == NGX_HTTP_XCGI_PARSE_NO_HEADER) {
987
988 ngx_log_error (NGX_LOG_ERR, r->connection->log, 0,
989 "upstream sent no valid HTTP/1.0 header");
990
991 r->http_version = NGX_HTTP_VERSION_9;
992 u->headers_in.status_n = NGX_HTTP_OK;
993 u->state->status = NGX_HTTP_OK;
994
995 return NGX_OK;
996 }
997
998 if (u->state) {
999 u->state->status = ctx->status;
1000 }
1001
1002 u->headers_in.status_n = ctx->status;
1003
1004 u->headers_in.status_line.len = ctx->status_end - ctx->status_start;
1005 u->headers_in.status_line.data = ngx_pnalloc (r->pool,
1006 u->headers_in.
1007 status_line.len);
1008 if (u->headers_in.status_line.data == NULL) {
1009 return NGX_ERROR;
1010 }
1011
1012 ngx_memcpy (u->headers_in.status_line.data, ctx->status_start,
1013 u->headers_in.status_line.len);
1014
1015 ngx_log_debug2 (NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1016 "http uwsgi status %ui \"%V\"",
1017 u->headers_in.status_n, &u->headers_in.status_line);
1018
1019 u->process_header = ngx_http_uwsgi_process_header;
1020
1021 return ngx_http_uwsgi_process_header (r);
1022 }
1023
1024
1025 static ngx_int_t
1026 ngx_http_uwsgi_process_header (ngx_http_request_t * r)
1027 {
1028 ngx_int_t rc;
1029 ngx_table_elt_t *h;
1030 ngx_http_upstream_header_t *hh;
1031 ngx_http_upstream_main_conf_t *umcf;
1032
1033 umcf = ngx_http_get_module_main_conf (r, ngx_http_upstream_module);
1034
1035 for (;;) {
1036
1037 rc = ngx_http_parse_header_line (r, &r->upstream->buffer, 1);
1038
1039 if (rc == NGX_OK) {
1040
1041 /* a header line has been parsed successfully */
1042
1043 h = ngx_list_push (&r->upstream->headers_in.headers);
1044 if (h == NULL) {
1045 return NGX_ERROR;
1046 }
1047
1048 h->hash = r->header_hash;
1049
1050 h->key.len = r->header_name_end - r->header_name_start;
1051 h->value.len = r->header_end - r->header_start;
1052
1053 h->key.data = ngx_pnalloc (r->pool,
1054 h->key.len + 1 + h->value.len + 1 +
1055 h->key.len);
1056 if (h->key.data == NULL) {
1057 return NGX_ERROR;
1058 }
1059
1060 h->value.data = h->key.data + h->key.len + 1;
1061 h->lowcase_key = h->key.data + h->key.len + 1 + h->value.len + 1;
1062
1063 ngx_cpystrn (h->key.data, r->header_name_start, h->key.len + 1);
1064 ngx_cpystrn (h->value.data, r->header_start, h->value.len + 1);
1065
1066 if (h->key.len == r->lowcase_index) {
1067 ngx_memcpy (h->lowcase_key, r->lowcase_header, h->key.len);
1068
1069 }
1070 else {
1071 ngx_strlow (h->lowcase_key, h->key.data, h->key.len);
1072 }
1073
1074 hh = ngx_hash_find (&umcf->headers_in_hash, h->hash,
1075 h->lowcase_key, h->key.len);
1076
1077 if (hh && hh->handler (r, h, hh->offset) != NGX_OK) {
1078 return NGX_ERROR;
1079 }
1080
1081 ngx_log_debug2 (NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1082 "http uwsgi header: \"%V: %V\"",
1083 &h->key, &h->value);
1084
1085 continue;
1086 }
1087
1088 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
1089
1090 /* a whole header has been parsed successfully */
1091
1092 ngx_log_debug0 (NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1093 "http uwsgi header done");
1094
1095 /*
1096 * if no "Server" and "Date" in header line,
1097 * then add the special empty headers
1098 */
1099
1100 if (r->upstream->headers_in.server == NULL) {
1101 h = ngx_list_push (&r->upstream->headers_in.headers);
1102 if (h == NULL) {
1103 return NGX_ERROR;
1104 }
1105
1106 h->hash =
1107 ngx_hash (ngx_hash
1108 (ngx_hash
1109 (ngx_hash (ngx_hash ('s', 'e'), 'r'),
1110 'v'), 'e'), 'r');
1111
1112 h->key.len = sizeof ("Server") - 1;
1113 h->key.data = (u_char *) "Server";
1114 h->value.len = 0;
1115 h->value.data = NULL;
1116 h->lowcase_key = (u_char *) "server";
1117 }
1118
1119 if (r->upstream->headers_in.date == NULL) {
1120 h = ngx_list_push (&r->upstream->headers_in.headers);
1121 if (h == NULL) {
1122 return NGX_ERROR;
1123 }
1124
1125 h->hash = ngx_hash (ngx_hash (ngx_hash ('d', 'a'), 't'), 'e');
1126
1127 h->key.len = sizeof ("Date") - 1;
1128 h->key.data = (u_char *) "Date";
1129 h->value.len = 0;
1130 h->value.data = NULL;
1131 h->lowcase_key = (u_char *) "date";
1132 }
1133
1134 return NGX_OK;
1135 }
1136
1137 if (rc == NGX_AGAIN) {
1138 return NGX_AGAIN;
1139 }
1140
1141 /* there was error while a header line parsing */
1142
1143 ngx_log_error (NGX_LOG_ERR, r->connection->log, 0,
1144 "upstream sent invalid header");
1145
1146 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
1147 }
1148 }
1149
1150
1151 static void
1152 ngx_http_uwsgi_abort_request (ngx_http_request_t * r)
1153 {
1154 ngx_log_debug0 (NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1155 "abort http uwsgi request");
1156
1157 return;
1158 }
1159
1160
1161 static void
1162 ngx_http_uwsgi_finalize_request (ngx_http_request_t * r, ngx_int_t rc)
1163 {
1164 ngx_log_debug0 (NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1165 "finalize http uwsgi request");
1166
1167 return;
1168 }
1169
1170
1171 static ngx_int_t
1172 ngx_http_uwsgi_add_variables (ngx_conf_t * cf)
1173 {
1174 ngx_http_variable_t *var, *v;
1175
1176 for (v = ngx_http_uwsgi_vars; v->name.len; v++) {
1177 var = ngx_http_add_variable (cf, &v->name, v->flags);
1178 if (var == NULL) {
1179 return NGX_ERROR;
1180 }
1181
1182 var->get_handler = v->get_handler;
1183 var->data = v->data;
1184 }
1185
1186 return NGX_OK;
1187 }
1188
1189
1190 static void *
1191 ngx_http_uwsgi_create_loc_conf (ngx_conf_t * cf)
1192 {
1193 ngx_http_uwsgi_loc_conf_t *conf;
1194
1195 conf = ngx_pcalloc (cf->pool, sizeof (ngx_http_uwsgi_loc_conf_t));
1196 if (conf == NULL) {
1197 return NULL;
1198 }
1199
1200 conf->upstream.store = NGX_CONF_UNSET;
1201 conf->upstream.store_access = NGX_CONF_UNSET_UINT;
1202 conf->upstream.buffering = NGX_CONF_UNSET;
1203 conf->upstream.ignore_client_abort = NGX_CONF_UNSET;
1204
1205 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC;
1206 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC;
1207 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC;
1208
1209 conf->upstream.send_lowat = NGX_CONF_UNSET_SIZE;
1210 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE;
1211
1212 conf->upstream.busy_buffers_size_conf = NGX_CONF_UNSET_SIZE;
1213 conf->upstream.max_temp_file_size_conf = NGX_CONF_UNSET_SIZE;
1214 conf->upstream.temp_file_write_size_conf = NGX_CONF_UNSET_SIZE;
1215
1216 conf->upstream.pass_request_headers = NGX_CONF_UNSET;
1217 conf->upstream.pass_request_body = NGX_CONF_UNSET;
1218
1219 conf->upstream.hide_headers = NGX_CONF_UNSET_PTR;
1220 conf->upstream.pass_headers = NGX_CONF_UNSET_PTR;
1221
1222 conf->upstream.intercept_errors = NGX_CONF_UNSET;
1223
1224 /* "uwsgi_cyclic_temp_file" is disabled */
1225 conf->upstream.cyclic_temp_file = 0;
1226
1227 return conf;
1228 }
1229
1230
1231 static char *
1232 ngx_http_uwsgi_merge_loc_conf (ngx_conf_t * cf, void *parent, void *child)
1233 {
1234 ngx_http_uwsgi_loc_conf_t *prev = parent;
1235 ngx_http_uwsgi_loc_conf_t *conf = child;
1236
1237 u_char *p;
1238 size_t size;
1239 uintptr_t *code;
1240 ngx_uint_t i;
1241 ngx_keyval_t *src;
1242 ngx_hash_init_t hash;
1243 ngx_http_script_compile_t sc;
1244 ngx_http_script_copy_code_t *copy;
1245
1246 if (conf->upstream.store != 0) {
1247 ngx_conf_merge_value (conf->upstream.store, prev->upstream.store, 0);
1248
1249 if (conf->upstream.store_lengths == NULL) {
1250 conf->upstream.store_lengths = prev->upstream.store_lengths;
1251 conf->upstream.store_values = prev->upstream.store_values;
1252 }
1253 }
1254
1255 ngx_conf_merge_uint_value (conf->upstream.store_access,
1256 prev->upstream.store_access, 0600);
1257
1258 ngx_conf_merge_value (conf->upstream.buffering,
1259 prev->upstream.buffering, 1);
1260
1261 ngx_conf_merge_value (conf->upstream.ignore_client_abort,
1262 prev->upstream.ignore_client_abort, 0);
1263
1264 ngx_conf_merge_msec_value (conf->upstream.connect_timeout,
1265 prev->upstream.connect_timeout, 60000);
1266
1267 ngx_conf_merge_msec_value (conf->upstream.send_timeout,
1268 prev->upstream.send_timeout, 60000);
1269
1270 ngx_conf_merge_msec_value (conf->upstream.read_timeout,
1271 prev->upstream.read_timeout, 60000);
1272
1273 ngx_conf_merge_size_value (conf->upstream.send_lowat,
1274 prev->upstream.send_lowat, 0);
1275
1276 ngx_conf_merge_size_value (conf->upstream.buffer_size,
1277 prev->upstream.buffer_size,
1278 (size_t) ngx_pagesize);
1279
1280
1281 ngx_conf_merge_bufs_value (conf->upstream.bufs, prev->upstream.bufs,
1282 8, ngx_pagesize);
1283
1284 if (conf->upstream.bufs.num < 2) {
1285 ngx_conf_log_error (NGX_LOG_EMERG, cf, 0,
1286 "there must be at least 2 \"uwsgi_buffers\"");
1287 return NGX_CONF_ERROR;
1288 }
1289
1290
1291 size = conf->upstream.buffer_size;
1292 if (size < conf->upstream.bufs.size) {
1293 size = conf->upstream.bufs.size;
1294 }
1295
1296
1297 ngx_conf_merge_size_value (conf->upstream.busy_buffers_size_conf,
1298 prev->upstream.busy_buffers_size_conf,
1299 NGX_CONF_UNSET_SIZE);
1300
1301 if (conf->upstream.busy_buffers_size_conf == NGX_CONF_UNSET_SIZE) {
1302 conf->upstream.busy_buffers_size = 2 * size;
1303 }
1304 else {
1305 conf->upstream.busy_buffers_size =
1306 conf->upstream.busy_buffers_size_conf;
1307 }
1308
1309 if (conf->upstream.busy_buffers_size < size) {
1310 ngx_conf_log_error (NGX_LOG_EMERG, cf, 0,
1311 "\"uwsgi_busy_buffers_size\" must be equal or bigger than "
1312 "maximum of the value of \"uwsgi_buffer_size\" and "
1313 "one of the \"uwsgi_buffers\"");
1314
1315 return NGX_CONF_ERROR;
1316 }
1317
1318 if (conf->upstream.busy_buffers_size
1319 > (conf->upstream.bufs.num - 1) * conf->upstream.bufs.size) {
1320 ngx_conf_log_error (NGX_LOG_EMERG, cf, 0,
1321 "\"uwsgi_busy_buffers_size\" must be less than "
1322 "the size of all \"uwsgi_buffers\" minus one buffer");
1323
1324 return NGX_CONF_ERROR;
1325 }
1326
1327
1328 ngx_conf_merge_size_value (conf->upstream.temp_file_write_size_conf,
1329 prev->upstream.temp_file_write_size_conf,
1330 NGX_CONF_UNSET_SIZE);
1331
1332 if (conf->upstream.temp_file_write_size_conf == NGX_CONF_UNSET_SIZE) {
1333 conf->upstream.temp_file_write_size = 2 * size;
1334 }
1335 else {
1336 conf->upstream.temp_file_write_size =
1337 conf->upstream.temp_file_write_size_conf;
1338 }
1339
1340 if (conf->upstream.temp_file_write_size < size) {
1341 ngx_conf_log_error (NGX_LOG_EMERG, cf, 0,
1342 "\"uwsgi_temp_file_write_size\" must be equal or bigger than "
1343 "maximum of the value of \"uwsgi_buffer_size\" and "
1344 "one of the \"uwsgi_buffers\"");
1345
1346 return NGX_CONF_ERROR;
1347 }
1348
1349
1350 ngx_conf_merge_size_value (conf->upstream.max_temp_file_size_conf,
1351 prev->upstream.max_temp_file_size_conf,
1352 NGX_CONF_UNSET_SIZE);
1353
1354 if (conf->upstream.max_temp_file_size_conf == NGX_CONF_UNSET_SIZE) {
1355 conf->upstream.max_temp_file_size = 1024 * 1024 * 1024;
1356 }
1357 else {
1358 conf->upstream.max_temp_file_size =
1359 conf->upstream.max_temp_file_size_conf;
1360 }
1361
1362 if (conf->upstream.max_temp_file_size != 0
1363 && conf->upstream.max_temp_file_size < size) {
1364 ngx_conf_log_error (NGX_LOG_EMERG, cf, 0,
1365 "\"uwsgi_max_temp_file_size\" must be equal to zero to disable "
1366 "the temporary files usage or must be equal or bigger than "
1367 "maximum of the value of \"uwsgi_buffer_size\" and "
1368 "one of the \"uwsgi_buffers\"");
1369
1370 return NGX_CONF_ERROR;
1371 }
1372
1373
1374 ngx_conf_merge_bitmask_value (conf->upstream.ignore_headers,
1375 prev->upstream.ignore_headers,
1376 NGX_CONF_BITMASK_SET);
1377
1378
1379 ngx_conf_merge_bitmask_value (conf->upstream.next_upstream,
1380 prev->upstream.next_upstream,
1381 (NGX_CONF_BITMASK_SET
1382 | NGX_HTTP_UPSTREAM_FT_ERROR
1383 | NGX_HTTP_UPSTREAM_FT_TIMEOUT));
1384
1385 if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) {
1386 conf->upstream.next_upstream = NGX_CONF_BITMASK_SET
1387 | NGX_HTTP_UPSTREAM_FT_OFF;
1388 }
1389
1390 if (ngx_conf_merge_path_value (cf, &conf->upstream.temp_path,
1391 prev->upstream.temp_path,
1392 &ngx_http_uwsgi_temp_path) != NGX_OK) {
1393 return NGX_CONF_ERROR;
1394 }
1395
1396 ngx_conf_merge_value (conf->upstream.pass_request_headers,
1397 prev->upstream.pass_request_headers, 1);
1398 ngx_conf_merge_value (conf->upstream.pass_request_body,
1399 prev->upstream.pass_request_body, 1);
1400
1401 ngx_conf_merge_value (conf->upstream.intercept_errors,
1402 prev->upstream.intercept_errors, 0);
1403
1404 ngx_conf_merge_str_value(conf->uwsgi_string, prev->uwsgi_string, "");
1405
1406 hash.max_size = 512;
1407 hash.bucket_size = ngx_align (64, ngx_cacheline_size);
1408 hash.name = "uwsgi_hide_headers_hash";
1409
1410 if (ngx_http_upstream_hide_headers_hash (cf, &conf->upstream,
1411 &prev->upstream,
1412 ngx_http_uwsgi_hide_headers,
1413 &hash) != NGX_OK) {
1414 return NGX_CONF_ERROR;
1415 }
1416
1417 if (conf->upstream.upstream == NULL) {
1418 conf->upstream.upstream = prev->upstream.upstream;
1419 }
1420
1421 if (conf->uwsgi_lengths == NULL) {
1422 conf->uwsgi_lengths = prev->uwsgi_lengths;
1423 conf->uwsgi_values = prev->uwsgi_values;
1424 }
1425
1426 if (conf->modifier1 == 0) {
1427 conf->modifier1 = prev->modifier1;
1428 }
1429
1430 if (conf->modifier2 == 0) {
1431 conf->modifier2 = prev->modifier2;
1432 }
1433
1434 if (conf->params_source == NULL) {
1435 conf->flushes = prev->flushes;
1436 conf->params_len = prev->params_len;
1437 conf->params = prev->params;
1438 conf->params_source = prev->params_source;
1439
1440 if (conf->params_source == NULL) {
1441 return NGX_CONF_OK;
1442 }
1443 }
1444
1445 conf->params_len = ngx_array_create (cf->pool, 64, 1);
1446 if (conf->params_len == NULL) {
1447 return NGX_CONF_ERROR;
1448 }
1449
1450 conf->params = ngx_array_create (cf->pool, 512, 1);
1451 if (conf->params == NULL) {
1452 return NGX_CONF_ERROR;
1453 }
1454
1455 src = conf->params_source->elts;
1456 for (i = 0; i < conf->params_source->nelts; i++) {
1457
1458 if (ngx_http_script_variables_count (&src[i].value) == 0) {
1459 copy = ngx_array_push_n (conf->params_len,
1460 sizeof (ngx_http_script_copy_code_t));
1461 if (copy == NULL) {
1462 return NGX_CONF_ERROR;
1463 }
1464
1465 copy->code = (ngx_http_script_code_pt)
1466 ngx_http_script_copy_len_code;
1467 copy->len = src[i].key.len;
1468
1469
1470 copy = ngx_array_push_n (conf->params_len,
1471 sizeof (ngx_http_script_copy_code_t));
1472 if (copy == NULL) {
1473 return NGX_CONF_ERROR;
1474 }
1475
1476 copy->code = (ngx_http_script_code_pt)
1477 ngx_http_script_copy_len_code;
1478 copy->len = src[i].value.len;
1479
1480
1481 size = (sizeof (ngx_http_script_copy_code_t)
1482 + src[i].key.len + src[i].value.len
1483 + sizeof (uintptr_t) - 1) & ~(sizeof (uintptr_t) - 1);
1484
1485 copy = ngx_array_push_n (conf->params, size);
1486 if (copy == NULL) {
1487 return NGX_CONF_ERROR;
1488 }
1489
1490 copy->code = ngx_http_script_copy_code;
1491 copy->len = src[i].key.len + src[i].value.len;
1492
1493 p = (u_char *) copy + sizeof (ngx_http_script_copy_code_t);
1494
1495 p = ngx_cpymem (p, src[i].key.data, src[i].key.len);
1496 ngx_memcpy (p, src[i].value.data, src[i].value.len);
1497
1498 }
1499 else {
1500 copy = ngx_array_push_n (conf->params_len,
1501 sizeof (ngx_http_script_copy_code_t));
1502 if (copy == NULL) {
1503 return NGX_CONF_ERROR;
1504 }
1505
1506 copy->code = (ngx_http_script_code_pt)
1507 ngx_http_script_copy_len_code;
1508 copy->len = src[i].key.len;
1509
1510
1511 size = (sizeof (ngx_http_script_copy_code_t)
1512 + src[i].key.len + sizeof (uintptr_t) - 1)
1513 & ~(sizeof (uintptr_t) - 1);
1514
1515 copy = ngx_array_push_n (conf->params, size);
1516 if (copy == NULL) {
1517 return NGX_CONF_ERROR;
1518 }
1519
1520 copy->code = ngx_http_script_copy_code;
1521 copy->len = src[i].key.len;
1522
1523 p = (u_char *) copy + sizeof (ngx_http_script_copy_code_t);
1524 ngx_memcpy (p, src[i].key.data, src[i].key.len);
1525
1526
1527 ngx_memzero (&sc, sizeof (ngx_http_script_compile_t));
1528
1529 sc.cf = cf;
1530 sc.source = &src[i].value;
1531 sc.flushes = &conf->flushes;
1532 sc.lengths = &conf->params_len;
1533 sc.values = &conf->params;
1534
1535 if (ngx_http_script_compile (&sc) != NGX_OK) {
1536 return NGX_CONF_ERROR;
1537 }
1538 }
1539
1540 code = ngx_array_push_n (conf->params_len, sizeof (uintptr_t));
1541 if (code == NULL) {
1542 return NGX_CONF_ERROR;
1543 }
1544
1545 *code = (uintptr_t) NULL;
1546
1547
1548 code = ngx_array_push_n (conf->params, sizeof (uintptr_t));
1549 if (code == NULL) {
1550 return NGX_CONF_ERROR;
1551 }
1552
1553 *code = (uintptr_t) NULL;
1554 }
1555
1556 code = ngx_array_push_n (conf->params_len, sizeof (uintptr_t));
1557 if (code == NULL) {
1558 return NGX_CONF_ERROR;
1559 }
1560
1561 *code = (uintptr_t) NULL;
1562
1563 return NGX_CONF_OK;
1564 }
1565
1566
1567 static char *
1568 ngx_http_uwsgi_pass (ngx_conf_t * cf, ngx_command_t * cmd, void *conf)
1569 {
1570 ngx_http_uwsgi_loc_conf_t *uwcf = conf;
1571
1572 ngx_url_t u;
1573 ngx_str_t *value, *url;
1574 ngx_uint_t n;
1575 ngx_http_core_loc_conf_t *clcf;
1576 ngx_http_script_compile_t sc;
1577
1578 if (uwcf->upstream.upstream || uwcf->uwsgi_lengths) {
1579 return "is duplicate";
1580 }
1581
1582 clcf = ngx_http_conf_get_module_loc_conf (cf, ngx_http_core_module);
1583 clcf->handler = ngx_http_uwsgi_handler;
1584
1585 value = cf->args->elts;
1586
1587 url = &value[1];
1588
1589 n = ngx_http_script_variables_count (url);
1590
1591 if (n) {
1592
1593 ngx_memzero (&sc, sizeof (ngx_http_script_compile_t));
1594
1595 sc.cf = cf;
1596 sc.source = url;
1597 sc.lengths = &uwcf->uwsgi_lengths;
1598 sc.values = &uwcf->uwsgi_values;
1599 sc.variables = n;
1600 sc.complete_lengths = 1;
1601 sc.complete_values = 1;
1602
1603 if (ngx_http_script_compile (&sc) != NGX_OK) {
1604 return NGX_CONF_ERROR;
1605 }
1606
1607 return NGX_CONF_OK;
1608 }
1609
1610 ngx_memzero (&u, sizeof (ngx_url_t));
1611
1612 u.url = value[1];
1613 u.no_resolve = 1;
1614
1615 uwcf->upstream.upstream = ngx_http_upstream_add (cf, &u, 0);
1616 if (uwcf->upstream.upstream == NULL) {
1617 return NGX_CONF_ERROR;
1618 }
1619
1620 if (clcf->name.data[clcf->name.len - 1] == '/') {
1621 clcf->auto_redirect = 1;
1622 }
1623
1624 return NGX_CONF_OK;
1625 }
1626
1627 static char *
1628 ngx_http_uwsgi_modifier1 (ngx_conf_t * cf, ngx_command_t * cmd, void *conf)
1629 {
1630 ngx_http_uwsgi_loc_conf_t *uwcf = conf;
1631 ngx_str_t *value;
1632
1633 value = cf->args->elts;
1634
1635 uwcf->modifier1 = (u_char) ngx_atoi (value[1].data, value[1].len);
1636
1637 return NGX_CONF_OK;
1638 }
1639
1640 static char *
1641 ngx_http_uwsgi_modifier2 (ngx_conf_t * cf, ngx_command_t * cmd, void *conf)
1642 {
1643 ngx_http_uwsgi_loc_conf_t *uwcf = conf;
1644
1645 ngx_str_t *value;
1646
1647 value = cf->args->elts;
1648
1649 uwcf->modifier2 = (u_char) ngx_atoi (value[1].data, value[1].len);
1650
1651
1652 return NGX_CONF_OK;
1653 }