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Update and clean Tomato RAF files
[tomato.git] / release / src / router / nginx / src / http / modules / ngx_http_uwsgi_module.c
blob623ee4957713f07aecf0f6d129898f8e91da3f20
1
2 /*
3 * Copyright (C) Unbit S.a.s. 2009-2010
4 * Copyright (C) 2008 Manlio Perillo (manlio.perillo@gmail.com)
5 * Copyright (C) Igor Sysoev
6 * Copyright (C) Nginx, Inc.
7 */
8
9
10 #include <ngx_config.h>
11 #include <ngx_core.h>
12 #include <ngx_http.h>
13
14
15 typedef struct {
16 ngx_http_upstream_conf_t upstream;
17
18 ngx_array_t *flushes;
19 ngx_array_t *params_len;
20 ngx_array_t *params;
21 ngx_array_t *params_source;
22
23 ngx_hash_t headers_hash;
24 ngx_uint_t header_params;
25
26 ngx_array_t *uwsgi_lengths;
27 ngx_array_t *uwsgi_values;
28
29 #if (NGX_HTTP_CACHE)
30 ngx_http_complex_value_t cache_key;
31 #endif
32
33 ngx_str_t uwsgi_string;
34
35 ngx_uint_t modifier1;
36 ngx_uint_t modifier2;
37 } ngx_http_uwsgi_loc_conf_t;
38
39
40 static ngx_int_t ngx_http_uwsgi_eval(ngx_http_request_t *r,
41 ngx_http_uwsgi_loc_conf_t *uwcf);
42 static ngx_int_t ngx_http_uwsgi_create_request(ngx_http_request_t *r);
43 static ngx_int_t ngx_http_uwsgi_reinit_request(ngx_http_request_t *r);
44 static ngx_int_t ngx_http_uwsgi_process_status_line(ngx_http_request_t *r);
45 static ngx_int_t ngx_http_uwsgi_process_header(ngx_http_request_t *r);
46 static void ngx_http_uwsgi_abort_request(ngx_http_request_t *r);
47 static void ngx_http_uwsgi_finalize_request(ngx_http_request_t *r,
48 ngx_int_t rc);
49
50 static void *ngx_http_uwsgi_create_loc_conf(ngx_conf_t *cf);
51 static char *ngx_http_uwsgi_merge_loc_conf(ngx_conf_t *cf, void *parent,
52 void *child);
53 static ngx_int_t ngx_http_uwsgi_merge_params(ngx_conf_t *cf,
54 ngx_http_uwsgi_loc_conf_t *conf, ngx_http_uwsgi_loc_conf_t *prev);
55
56 static char *ngx_http_uwsgi_pass(ngx_conf_t *cf, ngx_command_t *cmd,
57 void *conf);
58 static char *ngx_http_uwsgi_store(ngx_conf_t *cf, ngx_command_t *cmd,
59 void *conf);
60
61 #if (NGX_HTTP_CACHE)
62 static ngx_int_t ngx_http_uwsgi_create_key(ngx_http_request_t *r);
63 static char *ngx_http_uwsgi_cache(ngx_conf_t *cf, ngx_command_t *cmd,
64 void *conf);
65 static char *ngx_http_uwsgi_cache_key(ngx_conf_t *cf, ngx_command_t *cmd,
66 void *conf);
67 #endif
68
69
70 static ngx_conf_num_bounds_t ngx_http_uwsgi_modifier_bounds = {
71 ngx_conf_check_num_bounds, 0, 255
72 };
73
74
75 static ngx_conf_bitmask_t ngx_http_uwsgi_next_upstream_masks[] = {
76 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR },
77 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT },
78 { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER },
79 { ngx_string("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500 },
80 { ngx_string("http_503"), NGX_HTTP_UPSTREAM_FT_HTTP_503 },
81 { ngx_string("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404 },
82 { ngx_string("updating"), NGX_HTTP_UPSTREAM_FT_UPDATING },
83 { ngx_string("off"), NGX_HTTP_UPSTREAM_FT_OFF },
84 { ngx_null_string, 0 }
85 };
86
87
88 ngx_module_t ngx_http_uwsgi_module;
89
90
91 static ngx_command_t ngx_http_uwsgi_commands[] = {
92
93 { ngx_string("uwsgi_pass"),
94 NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1,
95 ngx_http_uwsgi_pass,
96 NGX_HTTP_LOC_CONF_OFFSET,
97 0,
98 NULL },
99
100 { ngx_string("uwsgi_modifier1"),
101 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
102 ngx_conf_set_num_slot,
103 NGX_HTTP_LOC_CONF_OFFSET,
104 offsetof(ngx_http_uwsgi_loc_conf_t, modifier1),
105 &ngx_http_uwsgi_modifier_bounds },
106
107 { ngx_string("uwsgi_modifier2"),
108 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
109 ngx_conf_set_num_slot,
110 NGX_HTTP_LOC_CONF_OFFSET,
111 offsetof(ngx_http_uwsgi_loc_conf_t, modifier2),
112 &ngx_http_uwsgi_modifier_bounds },
113
114 { ngx_string("uwsgi_store"),
115 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
116 ngx_http_uwsgi_store,
117 NGX_HTTP_LOC_CONF_OFFSET,
118 0,
119 NULL },
120
121 { ngx_string("uwsgi_store_access"),
122 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE123,
123 ngx_conf_set_access_slot,
124 NGX_HTTP_LOC_CONF_OFFSET,
125 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.store_access),
126 NULL },
127
128 { ngx_string("uwsgi_buffering"),
129 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
130 ngx_conf_set_flag_slot,
131 NGX_HTTP_LOC_CONF_OFFSET,
132 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.buffering),
133 NULL },
134
135 { ngx_string("uwsgi_ignore_client_abort"),
136 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
137 ngx_conf_set_flag_slot,
138 NGX_HTTP_LOC_CONF_OFFSET,
139 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.ignore_client_abort),
140 NULL },
141
142 { ngx_string("uwsgi_bind"),
143 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
144 ngx_http_upstream_bind_set_slot,
145 NGX_HTTP_LOC_CONF_OFFSET,
146 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.local),
147 NULL },
148
149 { ngx_string("uwsgi_connect_timeout"),
150 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
151 ngx_conf_set_msec_slot,
152 NGX_HTTP_LOC_CONF_OFFSET,
153 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.connect_timeout),
154 NULL },
155
156 { ngx_string("uwsgi_send_timeout"),
157 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
158 ngx_conf_set_msec_slot,
159 NGX_HTTP_LOC_CONF_OFFSET,
160 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.send_timeout),
161 NULL },
162
163 { ngx_string("uwsgi_buffer_size"),
164 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
165 ngx_conf_set_size_slot,
166 NGX_HTTP_LOC_CONF_OFFSET,
167 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.buffer_size),
168 NULL },
169
170 { ngx_string("uwsgi_pass_request_headers"),
171 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
172 ngx_conf_set_flag_slot,
173 NGX_HTTP_LOC_CONF_OFFSET,
174 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.pass_request_headers),
175 NULL },
176
177 { ngx_string("uwsgi_pass_request_body"),
178 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
179 ngx_conf_set_flag_slot,
180 NGX_HTTP_LOC_CONF_OFFSET,
181 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.pass_request_body),
182 NULL },
183
184 { ngx_string("uwsgi_intercept_errors"),
185 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
186 ngx_conf_set_flag_slot,
187 NGX_HTTP_LOC_CONF_OFFSET,
188 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.intercept_errors),
189 NULL },
190
191 { ngx_string("uwsgi_read_timeout"),
192 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
193 ngx_conf_set_msec_slot,
194 NGX_HTTP_LOC_CONF_OFFSET,
195 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.read_timeout),
196 NULL },
197
198 { ngx_string("uwsgi_buffers"),
199 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2,
200 ngx_conf_set_bufs_slot,
201 NGX_HTTP_LOC_CONF_OFFSET,
202 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.bufs),
203 NULL },
204
205 { ngx_string("uwsgi_busy_buffers_size"),
206 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
207 ngx_conf_set_size_slot,
208 NGX_HTTP_LOC_CONF_OFFSET,
209 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.busy_buffers_size_conf),
210 NULL },
211
212 #if (NGX_HTTP_CACHE)
213
214 { ngx_string("uwsgi_cache"),
215 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
216 ngx_http_uwsgi_cache,
217 NGX_HTTP_LOC_CONF_OFFSET,
218 0,
219 NULL },
220
221 { ngx_string("uwsgi_cache_key"),
222 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
223 ngx_http_uwsgi_cache_key,
224 NGX_HTTP_LOC_CONF_OFFSET,
225 0,
226 NULL },
227
228 { ngx_string("uwsgi_cache_path"),
229 NGX_HTTP_MAIN_CONF|NGX_CONF_2MORE,
230 ngx_http_file_cache_set_slot,
231 0,
232 0,
233 &ngx_http_uwsgi_module },
234
235 { ngx_string("uwsgi_cache_bypass"),
236 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
237 ngx_http_set_predicate_slot,
238 NGX_HTTP_LOC_CONF_OFFSET,
239 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.cache_bypass),
240 NULL },
241
242 { ngx_string("uwsgi_no_cache"),
243 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
244 ngx_http_set_predicate_slot,
245 NGX_HTTP_LOC_CONF_OFFSET,
246 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.no_cache),
247 NULL },
248
249 { ngx_string("uwsgi_cache_valid"),
250 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
251 ngx_http_file_cache_valid_set_slot,
252 NGX_HTTP_LOC_CONF_OFFSET,
253 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.cache_valid),
254 NULL },
255
256 { ngx_string("uwsgi_cache_min_uses"),
257 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
258 ngx_conf_set_num_slot,
259 NGX_HTTP_LOC_CONF_OFFSET,
260 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.cache_min_uses),
261 NULL },
262
263 { ngx_string("uwsgi_cache_use_stale"),
264 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
265 ngx_conf_set_bitmask_slot,
266 NGX_HTTP_LOC_CONF_OFFSET,
267 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.cache_use_stale),
268 &ngx_http_uwsgi_next_upstream_masks },
269
270 { ngx_string("uwsgi_cache_methods"),
271 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
272 ngx_conf_set_bitmask_slot,
273 NGX_HTTP_LOC_CONF_OFFSET,
274 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.cache_methods),
275 &ngx_http_upstream_cache_method_mask },
276
277 { ngx_string("uwsgi_cache_lock"),
278 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
279 ngx_conf_set_flag_slot,
280 NGX_HTTP_LOC_CONF_OFFSET,
281 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.cache_lock),
282 NULL },
283
284 { ngx_string("uwsgi_cache_lock_timeout"),
285 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
286 ngx_conf_set_msec_slot,
287 NGX_HTTP_LOC_CONF_OFFSET,
288 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.cache_lock_timeout),
289 NULL },
290
291 #endif
292
293 { ngx_string("uwsgi_temp_path"),
294 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1234,
295 ngx_conf_set_path_slot,
296 NGX_HTTP_LOC_CONF_OFFSET,
297 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.temp_path),
298 NULL },
299
300 { ngx_string("uwsgi_max_temp_file_size"),
301 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
302 ngx_conf_set_size_slot,
303 NGX_HTTP_LOC_CONF_OFFSET,
304 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.max_temp_file_size_conf),
305 NULL },
306
307 { ngx_string("uwsgi_temp_file_write_size"),
308 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
309 ngx_conf_set_size_slot,
310 NGX_HTTP_LOC_CONF_OFFSET,
311 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.temp_file_write_size_conf),
312 NULL },
313
314 { ngx_string("uwsgi_next_upstream"),
315 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
316 ngx_conf_set_bitmask_slot,
317 NGX_HTTP_LOC_CONF_OFFSET,
318 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.next_upstream),
319 &ngx_http_uwsgi_next_upstream_masks },
320
321 { ngx_string("uwsgi_param"),
322 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE23,
323 ngx_http_upstream_param_set_slot,
324 NGX_HTTP_LOC_CONF_OFFSET,
325 offsetof(ngx_http_uwsgi_loc_conf_t, params_source),
326 NULL },
327
328 { ngx_string("uwsgi_string"),
329 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
330 ngx_conf_set_str_slot,
331 NGX_HTTP_LOC_CONF_OFFSET,
332 offsetof(ngx_http_uwsgi_loc_conf_t, uwsgi_string),
333 NULL },
334
335 { ngx_string("uwsgi_pass_header"),
336 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
337 ngx_conf_set_str_array_slot,
338 NGX_HTTP_LOC_CONF_OFFSET,
339 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.pass_headers),
340 NULL },
341
342 { ngx_string("uwsgi_hide_header"),
343 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
344 ngx_conf_set_str_array_slot,
345 NGX_HTTP_LOC_CONF_OFFSET,
346 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.hide_headers),
347 NULL },
348
349 { ngx_string("uwsgi_ignore_headers"),
350 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
351 ngx_conf_set_bitmask_slot,
352 NGX_HTTP_LOC_CONF_OFFSET,
353 offsetof(ngx_http_uwsgi_loc_conf_t, upstream.ignore_headers),
354 &ngx_http_upstream_ignore_headers_masks },
355
356 ngx_null_command
357 };
358
359
360 static ngx_http_module_t ngx_http_uwsgi_module_ctx = {
361 NULL, /* preconfiguration */
362 NULL, /* postconfiguration */
363
364 NULL, /* create main configuration */
365 NULL, /* init main configuration */
366
367 NULL, /* create server configuration */
368 NULL, /* merge server configuration */
369
370 ngx_http_uwsgi_create_loc_conf, /* create location configuration */
371 ngx_http_uwsgi_merge_loc_conf /* merge location configuration */
372 };
373
374
375 ngx_module_t ngx_http_uwsgi_module = {
376 NGX_MODULE_V1,
377 &ngx_http_uwsgi_module_ctx, /* module context */
378 ngx_http_uwsgi_commands, /* module directives */
379 NGX_HTTP_MODULE, /* module type */
380 NULL, /* init master */
381 NULL, /* init module */
382 NULL, /* init process */
383 NULL, /* init thread */
384 NULL, /* exit thread */
385 NULL, /* exit process */
386 NULL, /* exit master */
387 NGX_MODULE_V1_PADDING
388 };
389
390
391 static ngx_str_t ngx_http_uwsgi_hide_headers[] = {
392 ngx_string("X-Accel-Expires"),
393 ngx_string("X-Accel-Redirect"),
394 ngx_string("X-Accel-Limit-Rate"),
395 ngx_string("X-Accel-Buffering"),
396 ngx_string("X-Accel-Charset"),
397 ngx_null_string
398 };
399
400
401 #if (NGX_HTTP_CACHE)
402
403 static ngx_keyval_t ngx_http_uwsgi_cache_headers[] = {
404 { ngx_string("HTTP_IF_MODIFIED_SINCE"), ngx_string("") },
405 { ngx_string("HTTP_IF_UNMODIFIED_SINCE"), ngx_string("") },
406 { ngx_string("HTTP_IF_NONE_MATCH"), ngx_string("") },
407 { ngx_string("HTTP_IF_MATCH"), ngx_string("") },
408 { ngx_string("HTTP_RANGE"), ngx_string("") },
409 { ngx_string("HTTP_IF_RANGE"), ngx_string("") },
410 { ngx_null_string, ngx_null_string }
411 };
412
413 #endif
414
415
416 static ngx_path_init_t ngx_http_uwsgi_temp_path = {
417 ngx_string(NGX_HTTP_UWSGI_TEMP_PATH), { 1, 2, 0 }
418 };
419
420
421 static ngx_int_t
422 ngx_http_uwsgi_handler(ngx_http_request_t *r)
423 {
424 ngx_int_t rc;
425 ngx_http_status_t *status;
426 ngx_http_upstream_t *u;
427 ngx_http_uwsgi_loc_conf_t *uwcf;
428
429 if (r->subrequest_in_memory) {
430 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
431 "ngx_http_uwsgi_module does not support "
432 "subrequests in memory");
433 return NGX_HTTP_INTERNAL_SERVER_ERROR;
434 }
435
436 if (ngx_http_upstream_create(r) != NGX_OK) {
437 return NGX_HTTP_INTERNAL_SERVER_ERROR;
438 }
439
440 status = ngx_pcalloc(r->pool, sizeof(ngx_http_status_t));
441 if (status == NULL) {
442 return NGX_HTTP_INTERNAL_SERVER_ERROR;
443 }
444
445 ngx_http_set_ctx(r, status, ngx_http_uwsgi_module);
446
447 uwcf = ngx_http_get_module_loc_conf(r, ngx_http_uwsgi_module);
448
449 if (uwcf->uwsgi_lengths) {
450 if (ngx_http_uwsgi_eval(r, uwcf) != NGX_OK) {
451 return NGX_HTTP_INTERNAL_SERVER_ERROR;
452 }
453 }
454
455 u = r->upstream;
456
457 ngx_str_set(&u->schema, "uwsgi://");
458 u->output.tag = (ngx_buf_tag_t) &ngx_http_uwsgi_module;
459
460 u->conf = &uwcf->upstream;
461
462 #if (NGX_HTTP_CACHE)
463 u->create_key = ngx_http_uwsgi_create_key;
464 #endif
465 u->create_request = ngx_http_uwsgi_create_request;
466 u->reinit_request = ngx_http_uwsgi_reinit_request;
467 u->process_header = ngx_http_uwsgi_process_status_line;
468 u->abort_request = ngx_http_uwsgi_abort_request;
469 u->finalize_request = ngx_http_uwsgi_finalize_request;
470 r->state = 0;
471
472 u->buffering = uwcf->upstream.buffering;
473
474 u->pipe = ngx_pcalloc(r->pool, sizeof(ngx_event_pipe_t));
475 if (u->pipe == NULL) {
476 return NGX_HTTP_INTERNAL_SERVER_ERROR;
477 }
478
479 u->pipe->input_filter = ngx_event_pipe_copy_input_filter;
480 u->pipe->input_ctx = r;
481
482 rc = ngx_http_read_client_request_body(r, ngx_http_upstream_init);
483
484 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {
485 return rc;
486 }
487
488 return NGX_DONE;
489 }
490
491
492 static ngx_int_t
493 ngx_http_uwsgi_eval(ngx_http_request_t *r, ngx_http_uwsgi_loc_conf_t * uwcf)
494 {
495 ngx_url_t url;
496 ngx_http_upstream_t *u;
497
498 ngx_memzero(&url, sizeof(ngx_url_t));
499
500 if (ngx_http_script_run(r, &url.url, uwcf->uwsgi_lengths->elts, 0,
501 uwcf->uwsgi_values->elts)
502 == NULL)
503 {
504 return NGX_ERROR;
505 }
506
507 url.no_resolve = 1;
508
509 if (ngx_parse_url(r->pool, &url) != NGX_OK) {
510 if (url.err) {
511 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
512 "%s in upstream \"%V\"", url.err, &url.url);
513 }
514
515 return NGX_ERROR;
516 }
517
518 u = r->upstream;
519
520 u->resolved = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_resolved_t));
521 if (u->resolved == NULL) {
522 return NGX_ERROR;
523 }
524
525 if (url.addrs && url.addrs[0].sockaddr) {
526 u->resolved->sockaddr = url.addrs[0].sockaddr;
527 u->resolved->socklen = url.addrs[0].socklen;
528 u->resolved->naddrs = 1;
529 u->resolved->host = url.addrs[0].name;
530
531 } else {
532 u->resolved->host = url.host;
533 u->resolved->port = url.port;
534 u->resolved->no_port = url.no_port;
535 }
536
537 return NGX_OK;
538 }
539
540
541 #if (NGX_HTTP_CACHE)
542
543 static ngx_int_t
544 ngx_http_uwsgi_create_key(ngx_http_request_t *r)
545 {
546 ngx_str_t *key;
547 ngx_http_uwsgi_loc_conf_t *uwcf;
548
549 key = ngx_array_push(&r->cache->keys);
550 if (key == NULL) {
551 return NGX_ERROR;
552 }
553
554 uwcf = ngx_http_get_module_loc_conf(r, ngx_http_uwsgi_module);
555
556 if (ngx_http_complex_value(r, &uwcf->cache_key, key) != NGX_OK) {
557 return NGX_ERROR;
558 }
559
560 return NGX_OK;
561 }
562
563 #endif
564
565
566 static ngx_int_t
567 ngx_http_uwsgi_create_request(ngx_http_request_t *r)
568 {
569 u_char ch, *lowcase_key;
570 size_t key_len, val_len, len, allocated;
571 ngx_uint_t i, n, hash, skip_empty, header_params;
572 ngx_buf_t *b;
573 ngx_chain_t *cl, *body;
574 ngx_list_part_t *part;
575 ngx_table_elt_t *header, **ignored;
576 ngx_http_script_code_pt code;
577 ngx_http_script_engine_t e, le;
578 ngx_http_uwsgi_loc_conf_t *uwcf;
579 ngx_http_script_len_code_pt lcode;
580
581 len = 0;
582 header_params = 0;
583 ignored = NULL;
584
585 uwcf = ngx_http_get_module_loc_conf(r, ngx_http_uwsgi_module);
586
587 if (uwcf->params_len) {
588 ngx_memzero(&le, sizeof(ngx_http_script_engine_t));
589
590 ngx_http_script_flush_no_cacheable_variables(r, uwcf->flushes);
591 le.flushed = 1;
592
593 le.ip = uwcf->params_len->elts;
594 le.request = r;
595
596 while (*(uintptr_t *) le.ip) {
597
598 lcode = *(ngx_http_script_len_code_pt *) le.ip;
599 key_len = lcode(&le);
600
601 lcode = *(ngx_http_script_len_code_pt *) le.ip;
602 skip_empty = lcode(&le);
603
604 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode (&le)) {
605 lcode = *(ngx_http_script_len_code_pt *) le.ip;
606 }
607 le.ip += sizeof(uintptr_t);
608
609 if (skip_empty && val_len == 0) {
610 continue;
611 }
612
613 len += 2 + key_len + 2 + val_len;
614 }
615 }
616
617 if (uwcf->upstream.pass_request_headers) {
618
619 allocated = 0;
620 lowcase_key = NULL;
621
622 if (uwcf->header_params) {
623 n = 0;
624 part = &r->headers_in.headers.part;
625
626 while (part) {
627 n += part->nelts;
628 part = part->next;
629 }
630
631 ignored = ngx_palloc(r->pool, n * sizeof(void *));
632 if (ignored == NULL) {
633 return NGX_ERROR;
634 }
635 }
636
637 part = &r->headers_in.headers.part;
638 header = part->elts;
639
640 for (i = 0; /* void */ ; i++) {
641
642 if (i >= part->nelts) {
643 if (part->next == NULL) {
644 break;
645 }
646
647 part = part->next;
648 header = part->elts;
649 i = 0;
650 }
651
652 if (uwcf->header_params) {
653 if (allocated < header[i].key.len) {
654 allocated = header[i].key.len + 16;
655 lowcase_key = ngx_pnalloc(r->pool, allocated);
656 if (lowcase_key == NULL) {
657 return NGX_ERROR;
658 }
659 }
660
661 hash = 0;
662
663 for (n = 0; n < header[i].key.len; n++) {
664 ch = header[i].key.data[n];
665
666 if (ch >= 'A' && ch <= 'Z') {
667 ch |= 0x20;
668
669 } else if (ch == '-') {
670 ch = '_';
671 }
672
673 hash = ngx_hash(hash, ch);
674 lowcase_key[n] = ch;
675 }
676
677 if (ngx_hash_find(&uwcf->headers_hash, hash, lowcase_key, n)) {
678 ignored[header_params++] = &header[i];
679 continue;
680 }
681 }
682
683 len += 2 + sizeof("HTTP_") - 1 + header[i].key.len
684 + 2 + header[i].value.len;
685 }
686 }
687
688 len += uwcf->uwsgi_string.len;
689
690 #if 0
691 /* allow custom uwsgi packet */
692 if (len > 0 && len < 2) {
693 ngx_log_error (NGX_LOG_ALERT, r->connection->log, 0,
694 "uwsgi request is too little: %uz", len);
695 return NGX_ERROR;
696 }
697 #endif
698
699 b = ngx_create_temp_buf(r->pool, len + 4);
700 if (b == NULL) {
701 return NGX_ERROR;
702 }
703
704 cl = ngx_alloc_chain_link(r->pool);
705 if (cl == NULL) {
706 return NGX_ERROR;
707 }
708
709 cl->buf = b;
710
711 *b->last++ = (u_char) uwcf->modifier1;
712 *b->last++ = (u_char) (len & 0xff);
713 *b->last++ = (u_char) ((len >> 8) & 0xff);
714 *b->last++ = (u_char) uwcf->modifier2;
715
716 if (uwcf->params_len) {
717 ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
718
719 e.ip = uwcf->params->elts;
720 e.pos = b->last;
721 e.request = r;
722 e.flushed = 1;
723
724 le.ip = uwcf->params_len->elts;
725
726 while (*(uintptr_t *) le.ip) {
727
728 lcode = *(ngx_http_script_len_code_pt *) le.ip;
729 key_len = (u_char) lcode (&le);
730
731 lcode = *(ngx_http_script_len_code_pt *) le.ip;
732 skip_empty = lcode(&le);
733
734 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) {
735 lcode = *(ngx_http_script_len_code_pt *) le.ip;
736 }
737 le.ip += sizeof(uintptr_t);
738
739 if (skip_empty && val_len == 0) {
740 e.skip = 1;
741
742 while (*(uintptr_t *) e.ip) {
743 code = *(ngx_http_script_code_pt *) e.ip;
744 code((ngx_http_script_engine_t *) &e);
745 }
746 e.ip += sizeof(uintptr_t);
747
748 e.skip = 0;
749
750 continue;
751 }
752
753 *e.pos++ = (u_char) (key_len & 0xff);
754 *e.pos++ = (u_char) ((key_len >> 8) & 0xff);
755
756 code = *(ngx_http_script_code_pt *) e.ip;
757 code((ngx_http_script_engine_t *) & e);
758
759 *e.pos++ = (u_char) (val_len & 0xff);
760 *e.pos++ = (u_char) ((val_len >> 8) & 0xff);
761
762 while (*(uintptr_t *) e.ip) {
763 code = *(ngx_http_script_code_pt *) e.ip;
764 code((ngx_http_script_engine_t *) & e);
765 }
766
767 e.ip += sizeof(uintptr_t);
768
769 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
770 "uwsgi param: \"%*s: %*s\"",
771 key_len, e.pos - (key_len + 2 + val_len),
772 val_len, e.pos - val_len);
773 }
774
775 b->last = e.pos;
776 }
777
778 if (uwcf->upstream.pass_request_headers) {
779
780 part = &r->headers_in.headers.part;
781 header = part->elts;
782
783 for (i = 0; /* void */ ; i++) {
784
785 if (i >= part->nelts) {
786 if (part->next == NULL) {
787 break;
788 }
789
790 part = part->next;
791 header = part->elts;
792 i = 0;
793 }
794
795 for (n = 0; n < header_params; n++) {
796 if (&header[i] == ignored[n]) {
797 goto next;
798 }
799 }
800
801 key_len = sizeof("HTTP_") - 1 + header[i].key.len;
802 *b->last++ = (u_char) (key_len & 0xff);
803 *b->last++ = (u_char) ((key_len >> 8) & 0xff);
804
805 b->last = ngx_cpymem(b->last, "HTTP_", sizeof("HTTP_") - 1);
806 for (n = 0; n < header[i].key.len; n++) {
807 ch = header[i].key.data[n];
808
809 if (ch >= 'a' && ch <= 'z') {
810 ch &= ~0x20;
811
812 } else if (ch == '-') {
813 ch = '_';
814 }
815
816 *b->last++ = ch;
817 }
818
819 val_len = header[i].value.len;
820 *b->last++ = (u_char) (val_len & 0xff);
821 *b->last++ = (u_char) ((val_len >> 8) & 0xff);
822 b->last = ngx_copy(b->last, header[i].value.data, val_len);
823
824 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
825 "uwsgi param: \"%*s: %*s\"",
826 key_len, b->last - (key_len + 2 + val_len),
827 val_len, b->last - val_len);
828 next:
829
830 continue;
831 }
832 }
833
834 b->last = ngx_copy(b->last, uwcf->uwsgi_string.data,
835 uwcf->uwsgi_string.len);
836
837 if (uwcf->upstream.pass_request_body) {
838 body = r->upstream->request_bufs;
839 r->upstream->request_bufs = cl;
840
841 while (body) {
842 b = ngx_alloc_buf(r->pool);
843 if (b == NULL) {
844 return NGX_ERROR;
845 }
846
847 ngx_memcpy(b, body->buf, sizeof(ngx_buf_t));
848
849 cl->next = ngx_alloc_chain_link(r->pool);
850 if (cl->next == NULL) {
851 return NGX_ERROR;
852 }
853
854 cl = cl->next;
855 cl->buf = b;
856
857 body = body->next;
858 }
859
860 } else {
861 r->upstream->request_bufs = cl;
862 }
863
864 cl->next = NULL;
865
866 return NGX_OK;
867 }
868
869
870 static ngx_int_t
871 ngx_http_uwsgi_reinit_request(ngx_http_request_t *r)
872 {
873 ngx_http_status_t *status;
874
875 status = ngx_http_get_module_ctx(r, ngx_http_uwsgi_module);
876
877 if (status == NULL) {
878 return NGX_OK;
879 }
880
881 status->code = 0;
882 status->count = 0;
883 status->start = NULL;
884 status->end = NULL;
885
886 r->upstream->process_header = ngx_http_uwsgi_process_status_line;
887 r->state = 0;
888
889 return NGX_OK;
890 }
891
892
893 static ngx_int_t
894 ngx_http_uwsgi_process_status_line(ngx_http_request_t *r)
895 {
896 size_t len;
897 ngx_int_t rc;
898 ngx_http_status_t *status;
899 ngx_http_upstream_t *u;
900
901 status = ngx_http_get_module_ctx(r, ngx_http_uwsgi_module);
902
903 if (status == NULL) {
904 return NGX_ERROR;
905 }
906
907 u = r->upstream;
908
909 rc = ngx_http_parse_status_line(r, &u->buffer, status);
910
911 if (rc == NGX_AGAIN) {
912 return rc;
913 }
914
915 if (rc == NGX_ERROR) {
916 u->process_header = ngx_http_uwsgi_process_header;
917 return ngx_http_uwsgi_process_header(r);
918 }
919
920 if (u->state) {
921 u->state->status = status->code;
922 }
923
924 u->headers_in.status_n = status->code;
925
926 len = status->end - status->start;
927 u->headers_in.status_line.len = len;
928
929 u->headers_in.status_line.data = ngx_pnalloc(r->pool, len);
930 if (u->headers_in.status_line.data == NULL) {
931 return NGX_ERROR;
932 }
933
934 ngx_memcpy(u->headers_in.status_line.data, status->start, len);
935
936 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
937 "http uwsgi status %ui \"%V\"",
938 u->headers_in.status_n, &u->headers_in.status_line);
939
940 u->process_header = ngx_http_uwsgi_process_header;
941
942 return ngx_http_uwsgi_process_header(r);
943 }
944
945
946 static ngx_int_t
947 ngx_http_uwsgi_process_header(ngx_http_request_t *r)
948 {
949 ngx_str_t *status_line;
950 ngx_int_t rc, status;
951 ngx_table_elt_t *h;
952 ngx_http_upstream_t *u;
953 ngx_http_upstream_header_t *hh;
954 ngx_http_upstream_main_conf_t *umcf;
955
956 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module);
957
958 for ( ;; ) {
959
960 rc = ngx_http_parse_header_line(r, &r->upstream->buffer, 1);
961
962 if (rc == NGX_OK) {
963
964 /* a header line has been parsed successfully */
965
966 h = ngx_list_push(&r->upstream->headers_in.headers);
967 if (h == NULL) {
968 return NGX_ERROR;
969 }
970
971 h->hash = r->header_hash;
972
973 h->key.len = r->header_name_end - r->header_name_start;
974 h->value.len = r->header_end - r->header_start;
975
976 h->key.data = ngx_pnalloc(r->pool,
977 h->key.len + 1 + h->value.len + 1
978 + h->key.len);
979 if (h->key.data == NULL) {
980 return NGX_ERROR;
981 }
982
983 h->value.data = h->key.data + h->key.len + 1;
984 h->lowcase_key = h->key.data + h->key.len + 1 + h->value.len + 1;
985
986 ngx_memcpy(h->key.data, r->header_name_start, h->key.len);
987 h->key.data[h->key.len] = '\0';
988 ngx_memcpy(h->value.data, r->header_start, h->value.len);
989 h->value.data[h->value.len] = '\0';
990
991 if (h->key.len == r->lowcase_index) {
992 ngx_memcpy(h->lowcase_key, r->lowcase_header, h->key.len);
993
994 } else {
995 ngx_strlow(h->lowcase_key, h->key.data, h->key.len);
996 }
997
998 hh = ngx_hash_find(&umcf->headers_in_hash, h->hash,
999 h->lowcase_key, h->key.len);
1000
1001 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) {
1002 return NGX_ERROR;
1003 }
1004
1005 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1006 "http uwsgi header: \"%V: %V\"", &h->key, &h->value);
1007
1008 continue;
1009 }
1010
1011 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
1012
1013 /* a whole header has been parsed successfully */
1014
1015 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1016 "http uwsgi header done");
1017
1018 u = r->upstream;
1019
1020 if (u->headers_in.status_n) {
1021 goto done;
1022 }
1023
1024 if (u->headers_in.status) {
1025 status_line = &u->headers_in.status->value;
1026
1027 status = ngx_atoi(status_line->data, 3);
1028 if (status == NGX_ERROR) {
1029 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
1030 "upstream sent invalid status \"%V\"",
1031 status_line);
1032 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
1033 }
1034
1035 u->headers_in.status_n = status;
1036 u->headers_in.status_line = *status_line;
1037
1038 } else if (u->headers_in.location) {
1039 u->headers_in.status_n = 302;
1040 ngx_str_set(&u->headers_in.status_line,
1041 "302 Moved Temporarily");
1042
1043 } else {
1044 u->headers_in.status_n = 200;
1045 ngx_str_set(&u->headers_in.status_line, "200 OK");
1046 }
1047
1048 if (u->state) {
1049 u->state->status = u->headers_in.status_n;
1050 }
1051
1052 done:
1053
1054 if (u->headers_in.status_n == NGX_HTTP_SWITCHING_PROTOCOLS
1055 && r->headers_in.upgrade)
1056 {
1057 u->upgrade = 1;
1058 }
1059
1060 return NGX_OK;
1061 }
1062
1063 if (rc == NGX_AGAIN) {
1064 return NGX_AGAIN;
1065 }
1066
1067 /* there was error while a header line parsing */
1068
1069 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
1070 "upstream sent invalid header");
1071
1072 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
1073 }
1074 }
1075
1076
1077 static void
1078 ngx_http_uwsgi_abort_request(ngx_http_request_t *r)
1079 {
1080 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1081 "abort http uwsgi request");
1082
1083 return;
1084 }
1085
1086
1087 static void
1088 ngx_http_uwsgi_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
1089 {
1090 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1091 "finalize http uwsgi request");
1092
1093 return;
1094 }
1095
1096
1097 static void *
1098 ngx_http_uwsgi_create_loc_conf(ngx_conf_t *cf)
1099 {
1100 ngx_http_uwsgi_loc_conf_t *conf;
1101
1102 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_uwsgi_loc_conf_t));
1103 if (conf == NULL) {
1104 return NULL;
1105 }
1106
1107 conf->modifier1 = NGX_CONF_UNSET_UINT;
1108 conf->modifier2 = NGX_CONF_UNSET_UINT;
1109
1110 conf->upstream.store = NGX_CONF_UNSET;
1111 conf->upstream.store_access = NGX_CONF_UNSET_UINT;
1112 conf->upstream.buffering = NGX_CONF_UNSET;
1113 conf->upstream.ignore_client_abort = NGX_CONF_UNSET;
1114
1115 conf->upstream.local = NGX_CONF_UNSET_PTR;
1116
1117 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC;
1118 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC;
1119 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC;
1120
1121 conf->upstream.send_lowat = NGX_CONF_UNSET_SIZE;
1122 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE;
1123
1124 conf->upstream.busy_buffers_size_conf = NGX_CONF_UNSET_SIZE;
1125 conf->upstream.max_temp_file_size_conf = NGX_CONF_UNSET_SIZE;
1126 conf->upstream.temp_file_write_size_conf = NGX_CONF_UNSET_SIZE;
1127
1128 conf->upstream.pass_request_headers = NGX_CONF_UNSET;
1129 conf->upstream.pass_request_body = NGX_CONF_UNSET;
1130
1131 #if (NGX_HTTP_CACHE)
1132 conf->upstream.cache = NGX_CONF_UNSET_PTR;
1133 conf->upstream.cache_min_uses = NGX_CONF_UNSET_UINT;
1134 conf->upstream.cache_bypass = NGX_CONF_UNSET_PTR;
1135 conf->upstream.no_cache = NGX_CONF_UNSET_PTR;
1136 conf->upstream.cache_valid = NGX_CONF_UNSET_PTR;
1137 conf->upstream.cache_lock = NGX_CONF_UNSET;
1138 conf->upstream.cache_lock_timeout = NGX_CONF_UNSET_MSEC;
1139 #endif
1140
1141 conf->upstream.hide_headers = NGX_CONF_UNSET_PTR;
1142 conf->upstream.pass_headers = NGX_CONF_UNSET_PTR;
1143
1144 conf->upstream.intercept_errors = NGX_CONF_UNSET;
1145
1146 /* "uwsgi_cyclic_temp_file" is disabled */
1147 conf->upstream.cyclic_temp_file = 0;
1148
1149 conf->upstream.change_buffering = 1;
1150
1151 ngx_str_set(&conf->upstream.module, "uwsgi");
1152
1153 return conf;
1154 }
1155
1156
1157 static char *
1158 ngx_http_uwsgi_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
1159 {
1160 ngx_http_uwsgi_loc_conf_t *prev = parent;
1161 ngx_http_uwsgi_loc_conf_t *conf = child;
1162
1163 size_t size;
1164 ngx_hash_init_t hash;
1165 ngx_http_core_loc_conf_t *clcf;
1166
1167 if (conf->upstream.store != 0) {
1168 ngx_conf_merge_value(conf->upstream.store, prev->upstream.store, 0);
1169
1170 if (conf->upstream.store_lengths == NULL) {
1171 conf->upstream.store_lengths = prev->upstream.store_lengths;
1172 conf->upstream.store_values = prev->upstream.store_values;
1173 }
1174 }
1175
1176 ngx_conf_merge_uint_value(conf->upstream.store_access,
1177 prev->upstream.store_access, 0600);
1178
1179 ngx_conf_merge_value(conf->upstream.buffering,
1180 prev->upstream.buffering, 1);
1181
1182 ngx_conf_merge_value(conf->upstream.ignore_client_abort,
1183 prev->upstream.ignore_client_abort, 0);
1184
1185 ngx_conf_merge_ptr_value(conf->upstream.local,
1186 prev->upstream.local, NULL);
1187
1188 ngx_conf_merge_msec_value(conf->upstream.connect_timeout,
1189 prev->upstream.connect_timeout, 60000);
1190
1191 ngx_conf_merge_msec_value(conf->upstream.send_timeout,
1192 prev->upstream.send_timeout, 60000);
1193
1194 ngx_conf_merge_msec_value(conf->upstream.read_timeout,
1195 prev->upstream.read_timeout, 60000);
1196
1197 ngx_conf_merge_size_value(conf->upstream.send_lowat,
1198 prev->upstream.send_lowat, 0);
1199
1200 ngx_conf_merge_size_value(conf->upstream.buffer_size,
1201 prev->upstream.buffer_size,
1202 (size_t) ngx_pagesize);
1203
1204
1205 ngx_conf_merge_bufs_value(conf->upstream.bufs, prev->upstream.bufs,
1206 8, ngx_pagesize);
1207
1208 if (conf->upstream.bufs.num < 2) {
1209 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
1210 "there must be at least 2 \"uwsgi_buffers\"");
1211 return NGX_CONF_ERROR;
1212 }
1213
1214
1215 size = conf->upstream.buffer_size;
1216 if (size < conf->upstream.bufs.size) {
1217 size = conf->upstream.bufs.size;
1218 }
1219
1220
1221 ngx_conf_merge_size_value(conf->upstream.busy_buffers_size_conf,
1222 prev->upstream.busy_buffers_size_conf,
1223 NGX_CONF_UNSET_SIZE);
1224
1225 if (conf->upstream.busy_buffers_size_conf == NGX_CONF_UNSET_SIZE) {
1226 conf->upstream.busy_buffers_size = 2 * size;
1227 } else {
1228 conf->upstream.busy_buffers_size =
1229 conf->upstream.busy_buffers_size_conf;
1230 }
1231
1232 if (conf->upstream.busy_buffers_size < size) {
1233 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
1234 "\"uwsgi_busy_buffers_size\" must be equal to or greater "
1235 "than the maximum of the value of \"uwsgi_buffer_size\" and "
1236 "one of the \"uwsgi_buffers\"");
1237
1238 return NGX_CONF_ERROR;
1239 }
1240
1241 if (conf->upstream.busy_buffers_size
1242 > (conf->upstream.bufs.num - 1) * conf->upstream.bufs.size)
1243 {
1244 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
1245 "\"uwsgi_busy_buffers_size\" must be less than "
1246 "the size of all \"uwsgi_buffers\" minus one buffer");
1247
1248 return NGX_CONF_ERROR;
1249 }
1250
1251
1252 ngx_conf_merge_size_value(conf->upstream.temp_file_write_size_conf,
1253 prev->upstream.temp_file_write_size_conf,
1254 NGX_CONF_UNSET_SIZE);
1255
1256 if (conf->upstream.temp_file_write_size_conf == NGX_CONF_UNSET_SIZE) {
1257 conf->upstream.temp_file_write_size = 2 * size;
1258 } else {
1259 conf->upstream.temp_file_write_size =
1260 conf->upstream.temp_file_write_size_conf;
1261 }
1262
1263 if (conf->upstream.temp_file_write_size < size) {
1264 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
1265 "\"uwsgi_temp_file_write_size\" must be equal to or greater than "
1266 "the maximum of the value of \"uwsgi_buffer_size\" and "
1267 "one of the \"uwsgi_buffers\"");
1268
1269 return NGX_CONF_ERROR;
1270 }
1271
1272
1273 ngx_conf_merge_size_value(conf->upstream.max_temp_file_size_conf,
1274 prev->upstream.max_temp_file_size_conf,
1275 NGX_CONF_UNSET_SIZE);
1276
1277 if (conf->upstream.max_temp_file_size_conf == NGX_CONF_UNSET_SIZE) {
1278 conf->upstream.max_temp_file_size = 1024 * 1024 * 1024;
1279 } else {
1280 conf->upstream.max_temp_file_size =
1281 conf->upstream.max_temp_file_size_conf;
1282 }
1283
1284 if (conf->upstream.max_temp_file_size != 0
1285 && conf->upstream.max_temp_file_size < size) {
1286 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
1287 "\"uwsgi_max_temp_file_size\" must be equal to zero to disable "
1288 "temporary files usage or must be equal to or greater than "
1289 "the maximum of the value of \"uwsgi_buffer_size\" and "
1290 "one of the \"uwsgi_buffers\"");
1291
1292 return NGX_CONF_ERROR;
1293 }
1294
1295
1296 ngx_conf_merge_bitmask_value(conf->upstream.ignore_headers,
1297 prev->upstream.ignore_headers,
1298 NGX_CONF_BITMASK_SET);
1299
1300
1301 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream,
1302 prev->upstream.next_upstream,
1303 (NGX_CONF_BITMASK_SET
1304 |NGX_HTTP_UPSTREAM_FT_ERROR
1305 |NGX_HTTP_UPSTREAM_FT_TIMEOUT));
1306
1307 if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) {
1308 conf->upstream.next_upstream = NGX_CONF_BITMASK_SET
1309 |NGX_HTTP_UPSTREAM_FT_OFF;
1310 }
1311
1312 if (ngx_conf_merge_path_value(cf, &conf->upstream.temp_path,
1313 prev->upstream.temp_path,
1314 &ngx_http_uwsgi_temp_path)
1315 != NGX_OK)
1316 {
1317 return NGX_CONF_ERROR;
1318 }
1319
1320 #if (NGX_HTTP_CACHE)
1321
1322 ngx_conf_merge_ptr_value(conf->upstream.cache,
1323 prev->upstream.cache, NULL);
1324
1325 if (conf->upstream.cache && conf->upstream.cache->data == NULL) {
1326 ngx_shm_zone_t *shm_zone;
1327
1328 shm_zone = conf->upstream.cache;
1329
1330 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
1331 "\"uwsgi_cache\" zone \"%V\" is unknown",
1332 &shm_zone->shm.name);
1333
1334 return NGX_CONF_ERROR;
1335 }
1336
1337 ngx_conf_merge_uint_value(conf->upstream.cache_min_uses,
1338 prev->upstream.cache_min_uses, 1);
1339
1340 ngx_conf_merge_bitmask_value(conf->upstream.cache_use_stale,
1341 prev->upstream.cache_use_stale,
1342 (NGX_CONF_BITMASK_SET
1343 |NGX_HTTP_UPSTREAM_FT_OFF));
1344
1345 if (conf->upstream.cache_use_stale & NGX_HTTP_UPSTREAM_FT_OFF) {
1346 conf->upstream.cache_use_stale = NGX_CONF_BITMASK_SET
1347 |NGX_HTTP_UPSTREAM_FT_OFF;
1348 }
1349
1350 if (conf->upstream.cache_use_stale & NGX_HTTP_UPSTREAM_FT_ERROR) {
1351 conf->upstream.cache_use_stale |= NGX_HTTP_UPSTREAM_FT_NOLIVE;
1352 }
1353
1354 if (conf->upstream.cache_methods == 0) {
1355 conf->upstream.cache_methods = prev->upstream.cache_methods;
1356 }
1357
1358 conf->upstream.cache_methods |= NGX_HTTP_GET|NGX_HTTP_HEAD;
1359
1360 ngx_conf_merge_ptr_value(conf->upstream.cache_bypass,
1361 prev->upstream.cache_bypass, NULL);
1362
1363 ngx_conf_merge_ptr_value(conf->upstream.no_cache,
1364 prev->upstream.no_cache, NULL);
1365
1366 ngx_conf_merge_ptr_value(conf->upstream.cache_valid,
1367 prev->upstream.cache_valid, NULL);
1368
1369 if (conf->cache_key.value.data == NULL) {
1370 conf->cache_key = prev->cache_key;
1371 }
1372
1373 ngx_conf_merge_value(conf->upstream.cache_lock,
1374 prev->upstream.cache_lock, 0);
1375
1376 ngx_conf_merge_msec_value(conf->upstream.cache_lock_timeout,
1377 prev->upstream.cache_lock_timeout, 5000);
1378
1379 #endif
1380
1381 ngx_conf_merge_value(conf->upstream.pass_request_headers,
1382 prev->upstream.pass_request_headers, 1);
1383 ngx_conf_merge_value(conf->upstream.pass_request_body,
1384 prev->upstream.pass_request_body, 1);
1385
1386 ngx_conf_merge_value(conf->upstream.intercept_errors,
1387 prev->upstream.intercept_errors, 0);
1388
1389 ngx_conf_merge_str_value(conf->uwsgi_string, prev->uwsgi_string, "");
1390
1391 hash.max_size = 512;
1392 hash.bucket_size = ngx_align(64, ngx_cacheline_size);
1393 hash.name = "uwsgi_hide_headers_hash";
1394
1395 if (ngx_http_upstream_hide_headers_hash(cf, &conf->upstream,
1396 &prev->upstream, ngx_http_uwsgi_hide_headers, &hash)
1397 != NGX_OK)
1398 {
1399 return NGX_CONF_ERROR;
1400 }
1401
1402 if (conf->upstream.upstream == NULL) {
1403 conf->upstream.upstream = prev->upstream.upstream;
1404 }
1405
1406 if (conf->uwsgi_lengths == NULL) {
1407 conf->uwsgi_lengths = prev->uwsgi_lengths;
1408 conf->uwsgi_values = prev->uwsgi_values;
1409 }
1410
1411 if (conf->upstream.upstream || conf->uwsgi_lengths) {
1412 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module);
1413 if (clcf->handler == NULL && clcf->lmt_excpt) {
1414 clcf->handler = ngx_http_uwsgi_handler;
1415 }
1416 }
1417
1418 ngx_conf_merge_uint_value(conf->modifier1, prev->modifier1, 0);
1419 ngx_conf_merge_uint_value(conf->modifier2, prev->modifier2, 0);
1420
1421 if (ngx_http_uwsgi_merge_params(cf, conf, prev) != NGX_OK) {
1422 return NGX_CONF_ERROR;
1423 }
1424
1425 return NGX_CONF_OK;
1426 }
1427
1428
1429 static ngx_int_t
1430 ngx_http_uwsgi_merge_params(ngx_conf_t *cf, ngx_http_uwsgi_loc_conf_t *conf,
1431 ngx_http_uwsgi_loc_conf_t *prev)
1432 {
1433 u_char *p;
1434 size_t size;
1435 uintptr_t *code;
1436 ngx_uint_t i, nsrc;
1437 ngx_array_t headers_names;
1438 #if (NGX_HTTP_CACHE)
1439 ngx_array_t params_merged;
1440 #endif
1441 ngx_hash_key_t *hk;
1442 ngx_hash_init_t hash;
1443 ngx_http_upstream_param_t *src;
1444 ngx_http_script_compile_t sc;
1445 ngx_http_script_copy_code_t *copy;
1446
1447 if (conf->params_source == NULL) {
1448 conf->params_source = prev->params_source;
1449
1450 if (prev->headers_hash.buckets
1451 #if (NGX_HTTP_CACHE)
1452 && ((conf->upstream.cache == NULL)
1453 == (prev->upstream.cache == NULL))
1454 #endif
1455 )
1456 {
1457 conf->flushes = prev->flushes;
1458 conf->params_len = prev->params_len;
1459 conf->params = prev->params;
1460 conf->headers_hash = prev->headers_hash;
1461 conf->header_params = prev->header_params;
1462
1463 return NGX_OK;
1464 }
1465 }
1466
1467 if (conf->params_source == NULL
1468 #if (NGX_HTTP_CACHE)
1469 && (conf->upstream.cache == NULL)
1470 #endif
1471 )
1472 {
1473 conf->headers_hash.buckets = (void *) 1;
1474 return NGX_OK;
1475 }
1476
1477 conf->params_len = ngx_array_create(cf->pool, 64, 1);
1478 if (conf->params_len == NULL) {
1479 return NGX_ERROR;
1480 }
1481
1482 conf->params = ngx_array_create(cf->pool, 512, 1);
1483 if (conf->params == NULL) {
1484 return NGX_ERROR;
1485 }
1486
1487 if (ngx_array_init(&headers_names, cf->temp_pool, 4, sizeof(ngx_hash_key_t))
1488 != NGX_OK)
1489 {
1490 return NGX_ERROR;
1491 }
1492
1493 if (conf->params_source) {
1494 src = conf->params_source->elts;
1495 nsrc = conf->params_source->nelts;
1496
1497 } else {
1498 src = NULL;
1499 nsrc = 0;
1500 }
1501
1502 #if (NGX_HTTP_CACHE)
1503
1504 if (conf->upstream.cache) {
1505 ngx_keyval_t *h;
1506 ngx_http_upstream_param_t *s;
1507
1508 if (ngx_array_init(&params_merged, cf->temp_pool, 4,
1509 sizeof(ngx_http_upstream_param_t))
1510 != NGX_OK)
1511 {
1512 return NGX_ERROR;
1513 }
1514
1515 for (i = 0; i < nsrc; i++) {
1516
1517 s = ngx_array_push(&params_merged);
1518 if (s == NULL) {
1519 return NGX_ERROR;
1520 }
1521
1522 *s = src[i];
1523 }
1524
1525 h = ngx_http_uwsgi_cache_headers;
1526
1527 while (h->key.len) {
1528
1529 src = params_merged.elts;
1530 nsrc = params_merged.nelts;
1531
1532 for (i = 0; i < nsrc; i++) {
1533 if (ngx_strcasecmp(h->key.data, src[i].key.data) == 0) {
1534 goto next;
1535 }
1536 }
1537
1538 s = ngx_array_push(&params_merged);
1539 if (s == NULL) {
1540 return NGX_ERROR;
1541 }
1542
1543 s->key = h->key;
1544 s->value = h->value;
1545 s->skip_empty = 0;
1546
1547 next:
1548
1549 h++;
1550 }
1551
1552 src = params_merged.elts;
1553 nsrc = params_merged.nelts;
1554 }
1555
1556 #endif
1557
1558 for (i = 0; i < nsrc; i++) {
1559
1560 if (src[i].key.len > sizeof("HTTP_") - 1
1561 && ngx_strncmp(src[i].key.data, "HTTP_", sizeof("HTTP_") - 1) == 0)
1562 {
1563 hk = ngx_array_push(&headers_names);
1564 if (hk == NULL) {
1565 return NGX_ERROR;
1566 }
1567
1568 hk->key.len = src[i].key.len - 5;
1569 hk->key.data = src[i].key.data + 5;
1570 hk->key_hash = ngx_hash_key_lc(hk->key.data, hk->key.len);
1571 hk->value = (void *) 1;
1572
1573 if (src[i].value.len == 0) {
1574 continue;
1575 }
1576 }
1577
1578 copy = ngx_array_push_n(conf->params_len,
1579 sizeof(ngx_http_script_copy_code_t));
1580 if (copy == NULL) {
1581 return NGX_ERROR;
1582 }
1583
1584 copy->code = (ngx_http_script_code_pt) ngx_http_script_copy_len_code;
1585 copy->len = src[i].key.len;
1586
1587 copy = ngx_array_push_n(conf->params_len,
1588 sizeof(ngx_http_script_copy_code_t));
1589 if (copy == NULL) {
1590 return NGX_ERROR;
1591 }
1592
1593 copy->code = (ngx_http_script_code_pt) ngx_http_script_copy_len_code;
1594 copy->len = src[i].skip_empty;
1595
1596
1597 size = (sizeof(ngx_http_script_copy_code_t)
1598 + src[i].key.len + sizeof(uintptr_t) - 1)
1599 & ~(sizeof(uintptr_t) - 1);
1600
1601 copy = ngx_array_push_n(conf->params, size);
1602 if (copy == NULL) {
1603 return NGX_ERROR;
1604 }
1605
1606 copy->code = ngx_http_script_copy_code;
1607 copy->len = src[i].key.len;
1608
1609 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
1610 ngx_memcpy(p, src[i].key.data, src[i].key.len);
1611
1612
1613 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
1614
1615 sc.cf = cf;
1616 sc.source = &src[i].value;
1617 sc.flushes = &conf->flushes;
1618 sc.lengths = &conf->params_len;
1619 sc.values = &conf->params;
1620
1621 if (ngx_http_script_compile(&sc) != NGX_OK) {
1622 return NGX_ERROR;
1623 }
1624
1625 code = ngx_array_push_n(conf->params_len, sizeof(uintptr_t));
1626 if (code == NULL) {
1627 return NGX_ERROR;
1628 }
1629
1630 *code = (uintptr_t) NULL;
1631
1632
1633 code = ngx_array_push_n(conf->params, sizeof(uintptr_t));
1634 if (code == NULL) {
1635 return NGX_ERROR;
1636 }
1637
1638 *code = (uintptr_t) NULL;
1639 }
1640
1641 code = ngx_array_push_n(conf->params_len, sizeof(uintptr_t));
1642 if (code == NULL) {
1643 return NGX_ERROR;
1644 }
1645
1646 *code = (uintptr_t) NULL;
1647
1648 conf->header_params = headers_names.nelts;
1649
1650 hash.hash = &conf->headers_hash;
1651 hash.key = ngx_hash_key_lc;
1652 hash.max_size = 512;
1653 hash.bucket_size = 64;
1654 hash.name = "uwsgi_params_hash";
1655 hash.pool = cf->pool;
1656 hash.temp_pool = NULL;
1657
1658 return ngx_hash_init(&hash, headers_names.elts, headers_names.nelts);
1659 }
1660
1661
1662 static char *
1663 ngx_http_uwsgi_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
1664 {
1665 ngx_http_uwsgi_loc_conf_t *uwcf = conf;
1666
1667 ngx_url_t u;
1668 ngx_str_t *value, *url;
1669 ngx_uint_t n;
1670 ngx_http_core_loc_conf_t *clcf;
1671 ngx_http_script_compile_t sc;
1672
1673 if (uwcf->upstream.upstream || uwcf->uwsgi_lengths) {
1674 return "is duplicate";
1675 }
1676
1677 clcf = ngx_http_conf_get_module_loc_conf (cf, ngx_http_core_module);
1678 clcf->handler = ngx_http_uwsgi_handler;
1679
1680 value = cf->args->elts;
1681
1682 url = &value[1];
1683
1684 n = ngx_http_script_variables_count(url);
1685
1686 if (n) {
1687
1688 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
1689
1690 sc.cf = cf;
1691 sc.source = url;
1692 sc.lengths = &uwcf->uwsgi_lengths;
1693 sc.values = &uwcf->uwsgi_values;
1694 sc.variables = n;
1695 sc.complete_lengths = 1;
1696 sc.complete_values = 1;
1697
1698 if (ngx_http_script_compile(&sc) != NGX_OK) {
1699 return NGX_CONF_ERROR;
1700 }
1701
1702 return NGX_CONF_OK;
1703 }
1704
1705 ngx_memzero(&u, sizeof(ngx_url_t));
1706
1707 u.url = value[1];
1708 u.no_resolve = 1;
1709
1710 uwcf->upstream.upstream = ngx_http_upstream_add(cf, &u, 0);
1711 if (uwcf->upstream.upstream == NULL) {
1712 return NGX_CONF_ERROR;
1713 }
1714
1715 if (clcf->name.data[clcf->name.len - 1] == '/') {
1716 clcf->auto_redirect = 1;
1717 }
1718
1719 return NGX_CONF_OK;
1720 }
1721
1722
1723 static char *
1724 ngx_http_uwsgi_store(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
1725 {
1726 ngx_http_uwsgi_loc_conf_t *uwcf = conf;
1727
1728 ngx_str_t *value;
1729 ngx_http_script_compile_t sc;
1730
1731 if (uwcf->upstream.store != NGX_CONF_UNSET || uwcf->upstream.store_lengths)
1732 {
1733 return "is duplicate";
1734 }
1735
1736 value = cf->args->elts;
1737
1738 if (ngx_strcmp(value[1].data, "off") == 0) {
1739 uwcf->upstream.store = 0;
1740 return NGX_CONF_OK;
1741 }
1742
1743 #if (NGX_HTTP_CACHE)
1744
1745 if (uwcf->upstream.cache != NGX_CONF_UNSET_PTR
1746 && uwcf->upstream.cache != NULL)
1747 {
1748 return "is incompatible with \"uwsgi_cache\"";
1749 }
1750
1751 #endif
1752
1753 if (ngx_strcmp(value[1].data, "on") == 0) {
1754 uwcf->upstream.store = 1;
1755 return NGX_CONF_OK;
1756 }
1757
1758 /* include the terminating '\0' into script */
1759 value[1].len++;
1760
1761 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
1762
1763 sc.cf = cf;
1764 sc.source = &value[1];
1765 sc.lengths = &uwcf->upstream.store_lengths;
1766 sc.values = &uwcf->upstream.store_values;
1767 sc.variables = ngx_http_script_variables_count(&value[1]);;
1768 sc.complete_lengths = 1;
1769 sc.complete_values = 1;
1770
1771 if (ngx_http_script_compile(&sc) != NGX_OK) {
1772 return NGX_CONF_ERROR;
1773 }
1774
1775 return NGX_CONF_OK;
1776 }
1777
1778
1779 #if (NGX_HTTP_CACHE)
1780
1781 static char *
1782 ngx_http_uwsgi_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
1783 {
1784 ngx_http_uwsgi_loc_conf_t *uwcf = conf;
1785
1786 ngx_str_t *value;
1787
1788 value = cf->args->elts;
1789
1790 if (uwcf->upstream.cache != NGX_CONF_UNSET_PTR) {
1791 return "is duplicate";
1792 }
1793
1794 if (ngx_strcmp(value[1].data, "off") == 0) {
1795 uwcf->upstream.cache = NULL;
1796 return NGX_CONF_OK;
1797 }
1798
1799 if (uwcf->upstream.store > 0 || uwcf->upstream.store_lengths) {
1800 return "is incompatible with \"uwsgi_store\"";
1801 }
1802
1803 uwcf->upstream.cache = ngx_shared_memory_add(cf, &value[1], 0,
1804 &ngx_http_uwsgi_module);
1805 if (uwcf->upstream.cache == NULL) {
1806 return NGX_CONF_ERROR;
1807 }
1808
1809 return NGX_CONF_OK;
1810 }
1811
1812
1813 static char *
1814 ngx_http_uwsgi_cache_key(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
1815 {
1816 ngx_http_uwsgi_loc_conf_t *uwcf = conf;
1817
1818 ngx_str_t *value;
1819 ngx_http_compile_complex_value_t ccv;
1820
1821 value = cf->args->elts;
1822
1823 if (uwcf->cache_key.value.data) {
1824 return "is duplicate";
1825 }
1826
1827 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
1828
1829 ccv.cf = cf;
1830 ccv.value = &value[1];
1831 ccv.complex_value = &uwcf->cache_key;
1832
1833 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
1834 return NGX_CONF_ERROR;
1835 }
1836
1837 return NGX_CONF_OK;
1838 }
1839
1840 #endif
Tomato firmware and modifications.