0
|
1
|
|
2 /*
|
|
3 * Copyright (C) Igor Sysoev
|
|
4 */
|
|
5
|
|
6
|
|
7 #include <ngx_config.h>
|
|
8 #include <ngx_core.h>
|
|
9 #include <ngx_event.h>
|
|
10 #include <ngx_http.h>
|
|
11
|
|
12
|
|
13 static void ngx_http_init_request(ngx_event_t *ev);
|
|
14 static void ngx_http_process_request_line(ngx_event_t *rev);
|
|
15 static void ngx_http_process_request_headers(ngx_event_t *rev);
|
|
16 static ssize_t ngx_http_read_request_header(ngx_http_request_t *r);
|
|
17 static ngx_int_t ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
50
|
18 ngx_uint_t request_line);
|
58
|
19
|
|
20 static ngx_int_t ngx_http_process_header_line(ngx_http_request_t *r,
|
|
21 ngx_table_elt_t *h, ngx_uint_t offset);
|
72
|
22 static ngx_int_t ngx_http_process_unique_header_line(ngx_http_request_t *r,
|
|
23 ngx_table_elt_t *h, ngx_uint_t offset);
|
58
|
24 static ngx_int_t ngx_http_process_cookie(ngx_http_request_t *r,
|
|
25 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
26
|
0
|
27 static ngx_int_t ngx_http_process_request_header(ngx_http_request_t *r);
|
162
|
28 static void ngx_http_find_virtual_server(ngx_http_request_t *r);
|
0
|
29
|
58
|
30 static void ngx_http_request_handler(ngx_event_t *ev);
|
74
|
31 static ngx_int_t ngx_http_set_write_handler(ngx_http_request_t *r);
|
58
|
32 static void ngx_http_writer(ngx_http_request_t *r);
|
|
33
|
|
34 static void ngx_http_block_read(ngx_http_request_t *r);
|
|
35 static void ngx_http_read_discarded_body_handler(ngx_http_request_t *r);
|
0
|
36 static ngx_int_t ngx_http_read_discarded_body(ngx_http_request_t *r);
|
|
37
|
|
38 static void ngx_http_set_keepalive(ngx_http_request_t *r);
|
|
39 static void ngx_http_keepalive_handler(ngx_event_t *ev);
|
|
40 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
|
|
41 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
|
162
|
42 static ngx_int_t ngx_http_post_action(ngx_http_request_t *r);
|
80
|
43 static void ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error);
|
118
|
44 static void ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error);
|
80
|
45 static void ngx_http_close_connection(ngx_connection_t *c);
|
0
|
46
|
32
|
47 static u_char *ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len);
|
58
|
48 static u_char *ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf,
|
|
49 size_t len);
|
0
|
50
|
88
|
51 #if (NGX_HTTP_SSL)
|
|
52 static void ngx_http_ssl_handshake(ngx_event_t *rev);
|
96
|
53 static void ngx_http_ssl_handshake_handler(ngx_connection_t *c);
|
88
|
54 #endif
|
|
55
|
0
|
56
|
54
|
57 static char *ngx_http_client_errors[] = {
|
|
58
|
|
59 /* NGX_HTTP_PARSE_INVALID_METHOD */
|
|
60 "client sent invalid method",
|
|
61
|
|
62 /* NGX_HTTP_PARSE_INVALID_REQUEST */
|
|
63 "client sent invalid request",
|
|
64
|
|
65 /* NGX_HTTP_PARSE_INVALID_09_METHOD */
|
|
66 "client sent invalid method in HTTP/0.9 request"
|
0
|
67 };
|
|
68
|
|
69
|
|
70 ngx_http_header_t ngx_http_headers_in[] = {
|
58
|
71 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host),
|
72
|
72 ngx_http_process_unique_header_line },
|
58
|
73
|
|
74 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection),
|
72
|
75 ngx_http_process_unique_header_line },
|
58
|
76
|
0
|
77 { ngx_string("If-Modified-Since"),
|
58
|
78 offsetof(ngx_http_headers_in_t, if_modified_since),
|
|
79 ngx_http_process_header_line },
|
|
80
|
|
81 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent),
|
|
82 ngx_http_process_header_line },
|
|
83
|
|
84 { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer),
|
|
85 ngx_http_process_header_line },
|
|
86
|
0
|
87 { ngx_string("Content-Length"),
|
58
|
88 offsetof(ngx_http_headers_in_t, content_length),
|
72
|
89 ngx_http_process_unique_header_line },
|
58
|
90
|
28
|
91 { ngx_string("Content-Type"),
|
58
|
92 offsetof(ngx_http_headers_in_t, content_type),
|
|
93 ngx_http_process_header_line },
|
|
94
|
|
95 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range),
|
|
96 ngx_http_process_header_line },
|
|
97
|
130
|
98 { ngx_string("Transfer-Encoding"),
|
|
99 offsetof(ngx_http_headers_in_t, transfer_encoding),
|
|
100 ngx_http_process_header_line },
|
|
101
|
0
|
102 #if (NGX_HTTP_GZIP)
|
|
103 { ngx_string("Accept-Encoding"),
|
58
|
104 offsetof(ngx_http_headers_in_t, accept_encoding),
|
|
105 ngx_http_process_header_line },
|
|
106
|
|
107 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via),
|
|
108 ngx_http_process_header_line },
|
0
|
109 #endif
|
|
110
|
|
111 { ngx_string("Authorization"),
|
58
|
112 offsetof(ngx_http_headers_in_t, authorization),
|
72
|
113 ngx_http_process_unique_header_line },
|
58
|
114
|
|
115 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive),
|
|
116 ngx_http_process_header_line },
|
0
|
117
|
122
|
118 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP)
|
0
|
119 { ngx_string("X-Forwarded-For"),
|
58
|
120 offsetof(ngx_http_headers_in_t, x_forwarded_for),
|
|
121 ngx_http_process_header_line },
|
0
|
122 #endif
|
28
|
123
|
122
|
124 #if (NGX_HTTP_REALIP)
|
|
125 { ngx_string("X-Real-IP"),
|
|
126 offsetof(ngx_http_headers_in_t, x_real_ip),
|
|
127 ngx_http_process_header_line },
|
|
128 #endif
|
|
129
|
38
|
130 #if (NGX_HTTP_HEADERS)
|
58
|
131 { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept),
|
|
132 ngx_http_process_header_line },
|
|
133
|
38
|
134 { ngx_string("Accept-Language"),
|
58
|
135 offsetof(ngx_http_headers_in_t, accept_language),
|
|
136 ngx_http_process_header_line },
|
38
|
137 #endif
|
|
138
|
58
|
139 { ngx_string("Cookie"), 0, ngx_http_process_cookie },
|
|
140
|
|
141 { ngx_null_string, 0, NULL }
|
0
|
142 };
|
|
143
|
|
144
|
50
|
145 void
|
|
146 ngx_http_init_connection(ngx_connection_t *c)
|
0
|
147 {
|
|
148 ngx_event_t *rev;
|
|
149 ngx_http_log_ctx_t *ctx;
|
|
150
|
50
|
151 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
|
|
152 if (ctx == NULL) {
|
0
|
153 ngx_http_close_connection(c);
|
|
154 return;
|
|
155 }
|
|
156
|
10
|
157 ctx->client = &c->addr_text;
|
|
158 ctx->request = NULL;
|
32
|
159
|
|
160 c->log->connection = c->number;
|
|
161 c->log->handler = ngx_http_log_error;
|
0
|
162 c->log->data = ctx;
|
32
|
163 c->log->action = "reading client request line";
|
|
164
|
0
|
165 c->log_error = NGX_ERROR_INFO;
|
|
166
|
|
167 rev = c->read;
|
58
|
168 rev->handler = ngx_http_init_request;
|
118
|
169 c->write->handler = ngx_http_empty_handler;
|
0
|
170
|
116
|
171 #if (NGX_STAT_STUB)
|
|
172 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
173 #endif
|
|
174
|
0
|
175 if (rev->ready) {
|
|
176 /* the deferred accept(), rtsig, aio, iocp */
|
|
177
|
160
|
178 if (ngx_use_accept_mutex) {
|
112
|
179 ngx_post_event(rev, &ngx_posted_events);
|
0
|
180 return;
|
|
181 }
|
|
182
|
|
183 ngx_http_init_request(rev);
|
|
184 return;
|
|
185 }
|
|
186
|
|
187 ngx_add_timer(rev, c->listening->post_accept_timeout);
|
|
188
|
|
189 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
116
|
190 #if (NGX_STAT_STUB)
|
|
191 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
192 #endif
|
0
|
193 ngx_http_close_connection(c);
|
|
194 return;
|
|
195 }
|
|
196 }
|
|
197
|
|
198
|
50
|
199 static
|
|
200 void ngx_http_init_request(ngx_event_t *rev)
|
0
|
201 {
|
122
|
202 ngx_uint_t i;
|
|
203 socklen_t len;
|
|
204 struct sockaddr_in sin;
|
|
205 ngx_connection_t *c;
|
|
206 ngx_http_request_t *r;
|
142
|
207 ngx_http_in_port_t *hip;
|
|
208 ngx_http_in_addr_t *hia;
|
122
|
209 ngx_http_log_ctx_t *ctx;
|
|
210 ngx_http_connection_t *hc;
|
|
211 ngx_http_core_srv_conf_t *cscf;
|
|
212 ngx_http_core_loc_conf_t *clcf;
|
|
213 ngx_http_core_main_conf_t *cmcf;
|
0
|
214 #if (NGX_HTTP_SSL)
|
122
|
215 ngx_http_ssl_srv_conf_t *sscf;
|
0
|
216 #endif
|
|
217
|
116
|
218 #if (NGX_STAT_STUB)
|
|
219 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
220 #endif
|
|
221
|
0
|
222 c = rev->data;
|
|
223
|
|
224 if (rev->timedout) {
|
|
225 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
226
|
|
227 ngx_http_close_connection(c);
|
|
228 return;
|
|
229 }
|
|
230
|
|
231 hc = c->data;
|
|
232
|
116
|
233 if (hc == NULL) {
|
50
|
234 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
|
|
235 if (hc == NULL) {
|
0
|
236 ngx_http_close_connection(c);
|
|
237 return;
|
|
238 }
|
|
239 }
|
|
240
|
|
241 r = hc->request;
|
|
242
|
|
243 if (r) {
|
|
244 ngx_memzero(r, sizeof(ngx_http_request_t));
|
|
245
|
|
246 r->pipeline = hc->pipeline;
|
|
247
|
|
248 if (hc->nbusy) {
|
|
249 r->header_in = hc->busy[0];
|
|
250 }
|
|
251
|
|
252 } else {
|
50
|
253 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
|
|
254 if (r == NULL) {
|
0
|
255 ngx_http_close_connection(c);
|
|
256 return;
|
|
257 }
|
|
258
|
|
259 hc->request = r;
|
|
260 }
|
|
261
|
|
262 c->data = r;
|
|
263 r->http_connection = hc;
|
|
264
|
|
265 c->sent = 0;
|
|
266 r->signature = NGX_HTTP_MODULE;
|
|
267
|
|
268 /* find the server configuration for the address:port */
|
|
269
|
|
270 /* AF_INET only */
|
|
271
|
142
|
272 hip = c->servers;
|
|
273 hia = hip->addrs;
|
|
274
|
|
275 r->port = hip->port;
|
|
276 r->port_text = &hip->port_text;
|
0
|
277
|
|
278 i = 0;
|
|
279
|
142
|
280 if (hip->naddrs > 1) {
|
0
|
281
|
|
282 /*
|
|
283 * There are several addresses on this port and one of them
|
|
284 * is the "*:port" wildcard so getsockname() is needed to determine
|
|
285 * the server address.
|
|
286 *
|
|
287 * AcceptEx() already gave this address.
|
|
288 */
|
|
289
|
10
|
290 #if (NGX_WIN32)
|
0
|
291 if (c->local_sockaddr) {
|
|
292 r->in_addr =
|
|
293 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
|
|
294
|
28
|
295 } else
|
0
|
296 #endif
|
28
|
297 {
|
0
|
298 len = sizeof(struct sockaddr_in);
|
28
|
299 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
|
0
|
300 ngx_connection_error(c, ngx_socket_errno,
|
|
301 "getsockname() failed");
|
|
302 ngx_http_close_connection(c);
|
|
303 return;
|
|
304 }
|
|
305
|
28
|
306 r->in_addr = sin.sin_addr.s_addr;
|
0
|
307 }
|
|
308
|
|
309 /* the last in_port->addrs address is "*" */
|
|
310
|
142
|
311 for ( /* void */ ; i < hip->naddrs - 1; i++) {
|
|
312 if (hia[i].addr == r->in_addr) {
|
0
|
313 break;
|
|
314 }
|
|
315 }
|
|
316
|
|
317 } else {
|
142
|
318 r->in_addr = hia[0].addr;
|
0
|
319 }
|
|
320
|
142
|
321 r->virtual_names = hia[i].virtual_names;
|
0
|
322
|
|
323 /* the default server configuration for the address:port */
|
142
|
324 cscf = hia[i].core_srv_conf;
|
0
|
325
|
|
326 r->main_conf = cscf->ctx->main_conf;
|
|
327 r->srv_conf = cscf->ctx->srv_conf;
|
|
328 r->loc_conf = cscf->ctx->loc_conf;
|
|
329
|
142
|
330 r->server_name = cscf->server_name;
|
|
331
|
58
|
332 rev->handler = ngx_http_process_request_line;
|
0
|
333
|
|
334 #if (NGX_HTTP_SSL)
|
|
335
|
|
336 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
337 if (sscf->enable) {
|
|
338
|
|
339 if (c->ssl == NULL) {
|
96
|
340 if (ngx_ssl_create_connection(&sscf->ssl, c, NGX_SSL_BUFFER)
|
56
|
341 == NGX_ERROR)
|
0
|
342 {
|
|
343 ngx_http_close_connection(c);
|
|
344 return;
|
|
345 }
|
|
346
|
58
|
347 rev->handler = ngx_http_ssl_handshake;
|
0
|
348 }
|
|
349
|
62
|
350 r->main_filter_need_in_memory = 1;
|
0
|
351 }
|
|
352
|
|
353 #endif
|
|
354
|
|
355 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
356 c->log->file = clcf->err_log->file;
|
|
357 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
358 c->log->log_level = clcf->err_log->log_level;
|
|
359 }
|
|
360
|
|
361 if (c->buffer == NULL) {
|
|
362 c->buffer = ngx_create_temp_buf(c->pool,
|
|
363 cscf->client_header_buffer_size);
|
|
364 if (c->buffer == NULL) {
|
|
365 ngx_http_close_connection(c);
|
|
366 return;
|
|
367 }
|
|
368 }
|
|
369
|
|
370 if (r->header_in == NULL) {
|
|
371 r->header_in = c->buffer;
|
|
372 }
|
|
373
|
50
|
374 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
|
|
375 if (r->pool == NULL) {
|
0
|
376 ngx_http_close_connection(c);
|
|
377 return;
|
|
378 }
|
|
379
|
|
380
|
|
381 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
130
|
382 sizeof(ngx_table_elt_t))
|
|
383 == NGX_ERROR)
|
0
|
384 {
|
|
385 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
386 return;
|
|
387 }
|
|
388
|
|
389 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
390 if (r->ctx == NULL) {
|
|
391 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
392 return;
|
|
393 }
|
|
394
|
122
|
395 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
396
|
|
397 r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts
|
|
398 * sizeof(ngx_http_variable_value_t));
|
|
399 if (r->variables == NULL) {
|
|
400 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
401 return;
|
|
402 }
|
|
403
|
0
|
404 c->single_connection = 1;
|
132
|
405 c->destroyed = 0;
|
|
406
|
0
|
407 r->connection = c;
|
|
408
|
102
|
409 r->main = r;
|
|
410
|
46
|
411 r->start_time = ngx_time();
|
|
412
|
0
|
413 r->headers_in.content_length_n = -1;
|
|
414 r->headers_in.keep_alive_n = -1;
|
|
415 r->headers_out.content_length_n = -1;
|
|
416 r->headers_out.last_modified_time = -1;
|
|
417
|
|
418 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
419
|
54
|
420 ctx = c->log->data;
|
|
421 ctx->request = r;
|
58
|
422 r->log_handler = ngx_http_log_error_handler;
|
54
|
423
|
0
|
424 #if (NGX_STAT_STUB)
|
110
|
425 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
26
|
426 r->stat_reading = 1;
|
110
|
427 ngx_atomic_fetch_add(ngx_stat_requests, 1);
|
0
|
428 #endif
|
|
429
|
58
|
430 rev->handler(rev);
|
0
|
431 }
|
|
432
|
|
433
|
|
434 #if (NGX_HTTP_SSL)
|
|
435
|
50
|
436 static void
|
|
437 ngx_http_ssl_handshake(ngx_event_t *rev)
|
0
|
438 {
|
10
|
439 u_char buf[1];
|
|
440 ssize_t n;
|
0
|
441 ngx_int_t rc;
|
|
442 ngx_connection_t *c;
|
|
443 ngx_http_request_t *r;
|
|
444
|
|
445 c = rev->data;
|
|
446 r = c->data;
|
|
447
|
|
448 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
449 "http check ssl handshake");
|
|
450
|
|
451 if (rev->timedout) {
|
54
|
452 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
453 c->timedout = 1;
|
|
454 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
0
|
455 return;
|
|
456 }
|
|
457
|
132
|
458 n = recv(c->fd, (char *) buf, 1, MSG_PEEK);
|
0
|
459
|
|
460 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
461 return;
|
|
462 }
|
|
463
|
|
464 if (n == 1) {
|
|
465 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
466 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
10
|
467 "https ssl handshake: 0x%02Xd", buf[0]);
|
0
|
468
|
|
469 rc = ngx_ssl_handshake(c);
|
|
470
|
96
|
471 if (rc == NGX_AGAIN) {
|
|
472 c->ssl->handler = ngx_http_ssl_handshake_handler;
|
0
|
473 return;
|
|
474 }
|
|
475
|
96
|
476 ngx_http_ssl_handshake_handler(c);
|
|
477
|
|
478 return;
|
0
|
479
|
|
480 } else {
|
|
481 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
482 "plain http");
|
|
483
|
|
484 r->plain_http = 1;
|
|
485 }
|
|
486 }
|
|
487
|
58
|
488 rev->handler = ngx_http_process_request_line;
|
0
|
489 ngx_http_process_request_line(rev);
|
|
490 }
|
|
491
|
96
|
492
|
|
493 static void
|
|
494 ngx_http_ssl_handshake_handler(ngx_connection_t *c)
|
|
495 {
|
|
496 ngx_http_request_t *r;
|
|
497
|
|
498 if (c->ssl->handshaked) {
|
|
499
|
|
500 /*
|
|
501 * The majority of browsers do not send the "close notify" alert.
|
|
502 * Among them are MSIE, old Mozilla, Netscape 4, Konqueror,
|
|
503 * and Links. And what is more, MSIE ignores the server's alert.
|
|
504 *
|
|
505 * Opera and recent Mozilla send the alert.
|
|
506 */
|
|
507
|
|
508 c->ssl->no_wait_shutdown = 1;
|
|
509
|
|
510 c->read->handler = ngx_http_process_request_line;
|
|
511 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
|
|
512
|
|
513 ngx_http_process_request_line(c->read);
|
|
514
|
|
515 return;
|
|
516 }
|
|
517
|
|
518 r = c->data;
|
|
519
|
|
520 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
521
|
|
522 return;
|
|
523 }
|
|
524
|
|
525
|
0
|
526 #endif
|
|
527
|
|
528
|
50
|
529 static void
|
|
530 ngx_http_process_request_line(ngx_event_t *rev)
|
0
|
531 {
|
|
532 ssize_t n;
|
|
533 ngx_int_t rc, rv;
|
|
534 ngx_connection_t *c;
|
|
535 ngx_http_request_t *r;
|
|
536 ngx_http_log_ctx_t *ctx;
|
|
537
|
|
538 c = rev->data;
|
|
539 r = c->data;
|
|
540
|
|
541 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
542 "http process request line");
|
|
543
|
|
544 if (rev->timedout) {
|
54
|
545 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
546 c->timedout = 1;
|
|
547 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
0
|
548 return;
|
|
549 }
|
|
550
|
|
551 rc = NGX_AGAIN;
|
|
552
|
|
553 for ( ;; ) {
|
|
554
|
|
555 if (rc == NGX_AGAIN) {
|
|
556 n = ngx_http_read_request_header(r);
|
|
557
|
|
558 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
559 return;
|
|
560 }
|
|
561 }
|
|
562
|
|
563 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
564
|
|
565 if (rc == NGX_OK) {
|
|
566
|
|
567 /* the request line has been parsed successfully */
|
|
568
|
10
|
569 r->request_line.len = r->request_end - r->request_start;
|
|
570 r->request_line.data = r->request_start;
|
|
571
|
0
|
572
|
|
573 if (r->args_start) {
|
|
574 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
575 } else {
|
|
576 r->uri.len = r->uri_end - r->uri_start;
|
|
577 }
|
|
578
|
18
|
579
|
2
|
580 if (r->complex_uri || r->quoted_uri) {
|
10
|
581
|
50
|
582 r->uri.data = ngx_palloc(r->pool, r->uri.len + 1);
|
|
583 if (r->uri.data == NULL) {
|
10
|
584 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
585 return;
|
|
586 }
|
|
587
|
0
|
588 rc = ngx_http_parse_complex_uri(r);
|
|
589
|
54
|
590 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
591 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
592 "client sent invalid request");
|
|
593 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
0
|
594 return;
|
|
595 }
|
|
596
|
|
597 } else {
|
10
|
598 r->uri.data = r->uri_start;
|
0
|
599 }
|
|
600
|
18
|
601
|
10
|
602 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
603 r->unparsed_uri.data = r->uri_start;
|
|
604
|
0
|
605
|
58
|
606 r->method_name.len = r->method_end - r->request_start + 1;
|
|
607 r->method_name.data = r->request_line.data;
|
0
|
608
|
10
|
609
|
28
|
610 if (r->http_protocol.data) {
|
|
611 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
612 }
|
|
613
|
|
614
|
0
|
615 if (r->uri_ext) {
|
|
616 if (r->args_start) {
|
|
617 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
618 } else {
|
|
619 r->exten.len = r->uri_end - r->uri_ext;
|
|
620 }
|
|
621
|
10
|
622 r->exten.data = r->uri_ext;
|
0
|
623 }
|
|
624
|
10
|
625
|
0
|
626 if (r->args_start && r->uri_end > r->args_start) {
|
|
627 r->args.len = r->uri_end - r->args_start;
|
10
|
628 r->args.data = r->args_start;
|
0
|
629 }
|
|
630
|
10
|
631
|
|
632 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
633 "http request line: \"%V\"", &r->request_line);
|
|
634
|
0
|
635 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
10
|
636 "http uri: \"%V\"", &r->uri);
|
0
|
637
|
|
638 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
10
|
639 "http args: \"%V\"", &r->args);
|
0
|
640
|
|
641 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
10
|
642 "http exten: \"%V\"", &r->exten);
|
|
643
|
0
|
644 if (r->http_version < NGX_HTTP_VERSION_10) {
|
86
|
645
|
|
646 if (rev->timer_set) {
|
|
647 ngx_del_timer(rev);
|
|
648 }
|
|
649
|
|
650 #if (NGX_STAT_STUB)
|
110
|
651 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
86
|
652 r->stat_reading = 0;
|
110
|
653 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
86
|
654 r->stat_writing = 1;
|
|
655 #endif
|
|
656
|
|
657 rev->handler = ngx_http_request_handler;
|
|
658 c->write->handler = ngx_http_request_handler;
|
58
|
659 r->read_event_handler = ngx_http_block_read;
|
86
|
660
|
0
|
661 ngx_http_handler(r);
|
86
|
662
|
0
|
663 return;
|
|
664 }
|
|
665
|
|
666
|
|
667 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
130
|
668 sizeof(ngx_table_elt_t))
|
|
669 == NGX_ERROR)
|
0
|
670 {
|
|
671 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
672 return;
|
|
673 }
|
|
674
|
|
675
|
48
|
676 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
130
|
677 sizeof(ngx_table_elt_t *))
|
|
678 == NGX_ERROR)
|
0
|
679 {
|
|
680 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
681 return;
|
|
682 }
|
|
683
|
32
|
684 c->log->action = "reading client request headers";
|
0
|
685
|
58
|
686 rev->handler = ngx_http_process_request_headers;
|
0
|
687 ngx_http_process_request_headers(rev);
|
|
688
|
|
689 return;
|
54
|
690 }
|
|
691
|
|
692 if (rc != NGX_AGAIN) {
|
0
|
693
|
|
694 /* there was error while a request line parsing */
|
|
695
|
54
|
696 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
697 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
698 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
0
|
699 return;
|
|
700 }
|
|
701
|
|
702 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
703
|
|
704 if (r->header_in->pos == r->header_in->end) {
|
|
705
|
|
706 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
707
|
|
708 if (rv == NGX_ERROR) {
|
|
709 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
710 return;
|
|
711 }
|
|
712
|
|
713 if (rv == NGX_DECLINED) {
|
54
|
714 ctx = c->log->data;
|
|
715 ctx->request = r;
|
|
716
|
|
717 r->request_line.len = r->header_in->end - r->request_start;
|
|
718 r->request_line.data = r->request_start;
|
|
719
|
|
720 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
721 "client sent too long URI");
|
|
722 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
0
|
723 return;
|
|
724 }
|
|
725 }
|
|
726 }
|
|
727 }
|
|
728
|
|
729
|
50
|
730 static void
|
|
731 ngx_http_process_request_headers(ngx_event_t *rev)
|
0
|
732 {
|
56
|
733 ssize_t n;
|
|
734 ngx_int_t rc, rv;
|
|
735 ngx_uint_t key;
|
|
736 ngx_str_t header;
|
58
|
737 ngx_table_elt_t *h;
|
56
|
738 ngx_connection_t *c;
|
|
739 ngx_http_header_t *hh;
|
|
740 ngx_http_request_t *r;
|
60
|
741 ngx_http_core_srv_conf_t *cscf;
|
56
|
742 ngx_http_core_main_conf_t *cmcf;
|
0
|
743
|
|
744 c = rev->data;
|
|
745 r = c->data;
|
|
746
|
|
747 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
748 "http process request header line");
|
|
749
|
|
750 if (rev->timedout) {
|
54
|
751 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
752 c->timedout = 1;
|
|
753 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
0
|
754 return;
|
|
755 }
|
|
756
|
56
|
757 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
60
|
758 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
56
|
759 hh = (ngx_http_header_t *) cmcf->headers_in_hash.buckets;
|
|
760
|
0
|
761 rc = NGX_AGAIN;
|
|
762
|
|
763 for ( ;; ) {
|
|
764
|
|
765 if (rc == NGX_AGAIN) {
|
|
766
|
|
767 if (r->header_in->pos == r->header_in->end) {
|
|
768
|
|
769 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
770
|
|
771 if (rv == NGX_ERROR) {
|
|
772 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
773 return;
|
|
774 }
|
|
775
|
|
776 if (rv == NGX_DECLINED) {
|
54
|
777 header.len = r->header_in->end - r->header_name_start;
|
|
778 header.data = r->header_name_start;
|
80
|
779
|
|
780 if (header.len > NGX_MAX_ERROR_STR - 300) {
|
|
781 header.len = NGX_MAX_ERROR_STR - 300;
|
|
782 header.data[header.len++] = '.';
|
|
783 header.data[header.len++] = '.';
|
|
784 header.data[header.len++] = '.';
|
|
785 }
|
|
786
|
54
|
787 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
788 "client sent too long header line: \"%V\"",
|
|
789 &header);
|
|
790 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
0
|
791 return;
|
|
792 }
|
|
793 }
|
|
794
|
|
795 n = ngx_http_read_request_header(r);
|
|
796
|
|
797 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
798 return;
|
|
799 }
|
|
800 }
|
|
801
|
|
802 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
803
|
|
804 if (rc == NGX_OK) {
|
|
805
|
60
|
806 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
52
|
807
|
|
808 /* there was error while a header line parsing */
|
|
809
|
|
810 header.len = r->header_end - r->header_name_start;
|
|
811 header.data = r->header_name_start;
|
|
812
|
54
|
813 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
814 "client sent invalid header line: \"%V\"",
|
52
|
815 &header);
|
|
816 continue;
|
|
817 }
|
|
818
|
0
|
819 /* a header line has been parsed successfully */
|
|
820
|
50
|
821 h = ngx_list_push(&r->headers_in.headers);
|
|
822 if (h == NULL) {
|
0
|
823 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
824 return;
|
|
825 }
|
|
826
|
56
|
827 h->hash = r->header_hash;
|
|
828
|
0
|
829 h->key.len = r->header_name_end - r->header_name_start;
|
|
830 h->key.data = r->header_name_start;
|
|
831 h->key.data[h->key.len] = '\0';
|
|
832
|
|
833 h->value.len = r->header_end - r->header_start;
|
|
834 h->value.data = r->header_start;
|
|
835 h->value.data[h->value.len] = '\0';
|
|
836
|
58
|
837 key = h->hash % cmcf->headers_in_hash.hash_size;
|
|
838
|
|
839 if (hh[key].name.len == h->key.len
|
|
840 && ngx_strcasecmp(hh[key].name.data, h->key.data) == 0)
|
0
|
841 {
|
58
|
842 if (hh[key].handler(r, h, hh[key].offset) != NGX_OK) {
|
0
|
843 return;
|
|
844 }
|
|
845 }
|
|
846
|
|
847 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
10
|
848 "http header: \"%V: %V\"",
|
|
849 &h->key, &h->value);
|
0
|
850
|
|
851 continue;
|
54
|
852 }
|
|
853
|
|
854 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
0
|
855
|
|
856 /* a whole header has been parsed successfully */
|
|
857
|
|
858 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
859 "http header done");
|
|
860
|
24
|
861 r->request_length += r->header_in->pos - r->header_in->start;
|
|
862
|
0
|
863 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
864
|
|
865 rc = ngx_http_process_request_header(r);
|
|
866
|
|
867 if (rc != NGX_OK) {
|
|
868 return;
|
|
869 }
|
|
870
|
|
871 if (rev->timer_set) {
|
|
872 ngx_del_timer(rev);
|
|
873 }
|
|
874
|
|
875 #if (NGX_STAT_STUB)
|
110
|
876 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
0
|
877 r->stat_reading = 0;
|
110
|
878 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
0
|
879 r->stat_writing = 1;
|
|
880 #endif
|
|
881
|
58
|
882 rev->handler = ngx_http_request_handler;
|
|
883 c->write->handler = ngx_http_request_handler;
|
|
884 r->read_event_handler = ngx_http_block_read;
|
|
885
|
0
|
886 ngx_http_handler(r);
|
86
|
887
|
0
|
888 return;
|
54
|
889 }
|
|
890
|
|
891 if (rc == NGX_AGAIN) {
|
|
892
|
|
893 /* a header line parsing is still not complete */
|
|
894
|
|
895 continue;
|
0
|
896 }
|
|
897
|
54
|
898 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
899
|
|
900 header.len = r->header_end - r->header_name_start;
|
|
901 header.data = r->header_name_start;
|
|
902 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
903 "client sent invalid header line: \"%V\\r...\"",
|
|
904 &header);
|
|
905 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
906 return;
|
0
|
907 }
|
|
908 }
|
|
909
|
|
910
|
50
|
911 static ssize_t
|
|
912 ngx_http_read_request_header(ngx_http_request_t *r)
|
0
|
913 {
|
|
914 ssize_t n;
|
|
915 ngx_event_t *rev;
|
|
916 ngx_http_core_srv_conf_t *cscf;
|
|
917
|
|
918 rev = r->connection->read;
|
|
919
|
|
920 n = r->header_in->last - r->header_in->pos;
|
|
921
|
|
922 if (n > 0) {
|
|
923 return n;
|
|
924 }
|
|
925
|
72
|
926 if (rev->ready) {
|
|
927 n = r->connection->recv(r->connection, r->header_in->last,
|
|
928 r->header_in->end - r->header_in->last);
|
|
929 } else {
|
|
930 n = NGX_AGAIN;
|
0
|
931 }
|
|
932
|
|
933 if (n == NGX_AGAIN) {
|
|
934 if (!r->header_timeout_set) {
|
|
935 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
936 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
937 r->header_timeout_set = 1;
|
|
938 }
|
|
939
|
|
940 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
941 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
942 return NGX_ERROR;
|
|
943 }
|
|
944
|
|
945 return NGX_AGAIN;
|
|
946 }
|
|
947
|
|
948 if (n == 0) {
|
|
949 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
950 "client closed prematurely connection");
|
|
951 }
|
|
952
|
|
953 if (n == 0 || n == NGX_ERROR) {
|
|
954 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
955 return NGX_ERROR;
|
|
956 }
|
|
957
|
|
958 r->header_in->last += n;
|
|
959
|
|
960 return n;
|
|
961 }
|
|
962
|
|
963
|
50
|
964 static ngx_int_t
|
|
965 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
966 ngx_uint_t request_line)
|
0
|
967 {
|
|
968 u_char *old, *new;
|
|
969 ngx_buf_t *b;
|
|
970 ngx_http_connection_t *hc;
|
|
971 ngx_http_core_srv_conf_t *cscf;
|
|
972
|
|
973 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
974 "http alloc large header buffer");
|
|
975
|
|
976 if (request_line && r->state == 0) {
|
|
977
|
|
978 /* the client fills up the buffer with "\r\n" */
|
|
979
|
24
|
980 r->request_length += r->header_in->end - r->header_in->start;
|
|
981
|
0
|
982 r->header_in->pos = r->header_in->start;
|
|
983 r->header_in->last = r->header_in->start;
|
|
984
|
|
985 return NGX_OK;
|
|
986 }
|
|
987
|
|
988 old = request_line ? r->request_start : r->header_name_start;
|
|
989
|
|
990 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
991
|
|
992 if (r->state != 0
|
|
993 && (size_t) (r->header_in->pos - old)
|
|
994 >= cscf->large_client_header_buffers.size)
|
|
995 {
|
|
996 return NGX_DECLINED;
|
|
997 }
|
|
998
|
|
999 hc = r->http_connection;
|
|
1000
|
|
1001 if (hc->nfree) {
|
|
1002 b = hc->free[--hc->nfree];
|
|
1003
|
|
1004 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
10
|
1005 "http large header free: %p %uz",
|
0
|
1006 b->pos, b->end - b->last);
|
|
1007
|
|
1008 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
1009
|
|
1010 if (hc->busy == NULL) {
|
|
1011 hc->busy = ngx_palloc(r->connection->pool,
|
|
1012 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
1013 if (hc->busy == NULL) {
|
|
1014 return NGX_ERROR;
|
|
1015 }
|
|
1016 }
|
|
1017
|
|
1018 b = ngx_create_temp_buf(r->connection->pool,
|
|
1019 cscf->large_client_header_buffers.size);
|
|
1020 if (b == NULL) {
|
|
1021 return NGX_ERROR;
|
|
1022 }
|
|
1023
|
|
1024 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
10
|
1025 "http large header alloc: %p %uz",
|
0
|
1026 b->pos, b->end - b->last);
|
|
1027
|
|
1028 } else {
|
|
1029 return NGX_DECLINED;
|
|
1030 }
|
|
1031
|
|
1032 hc->busy[hc->nbusy++] = b;
|
|
1033
|
|
1034 if (r->state == 0) {
|
|
1035 /*
|
|
1036 * r->state == 0 means that a header line was parsed successfully
|
|
1037 * and we do not need to copy incomplete header line and
|
|
1038 * to relocate the parser header pointers
|
|
1039 */
|
|
1040
|
24
|
1041 r->request_length += r->header_in->end - r->header_in->start;
|
|
1042
|
0
|
1043 r->header_in = b;
|
|
1044
|
|
1045 return NGX_OK;
|
|
1046 }
|
|
1047
|
|
1048 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1049 "http large header copy: %d", r->header_in->pos - old);
|
|
1050
|
24
|
1051 r->request_length += old - r->header_in->start;
|
|
1052
|
0
|
1053 new = b->start;
|
|
1054
|
|
1055 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
1056
|
|
1057 b->pos = new + (r->header_in->pos - old);
|
|
1058 b->last = new + (r->header_in->pos - old);
|
|
1059
|
|
1060 if (request_line) {
|
|
1061 r->request_start = new;
|
|
1062
|
|
1063 if (r->request_end) {
|
|
1064 r->request_end = new + (r->request_end - old);
|
|
1065 }
|
|
1066
|
|
1067 r->method_end = new + (r->method_end - old);
|
|
1068
|
|
1069 r->uri_start = new + (r->uri_start - old);
|
|
1070 r->uri_end = new + (r->uri_end - old);
|
|
1071
|
|
1072 if (r->schema_start) {
|
|
1073 r->schema_start = new + (r->schema_start - old);
|
|
1074 r->schema_end = new + (r->schema_end - old);
|
|
1075 }
|
|
1076
|
|
1077 if (r->host_start) {
|
|
1078 r->host_start = new + (r->host_start - old);
|
|
1079 r->host_end = new + (r->host_end - old);
|
|
1080 }
|
|
1081
|
|
1082 if (r->port_start) {
|
|
1083 r->port_start = new + (r->port_start - old);
|
|
1084 r->port_end = new + (r->port_end - old);
|
|
1085 }
|
|
1086
|
|
1087 if (r->uri_ext) {
|
|
1088 r->uri_ext = new + (r->uri_ext - old);
|
|
1089 }
|
|
1090
|
|
1091 if (r->args_start) {
|
|
1092 r->args_start = new + (r->args_start - old);
|
|
1093 }
|
|
1094
|
|
1095 } else {
|
|
1096 r->header_name_start = new;
|
|
1097 r->header_name_end = new + (r->header_name_end - old);
|
|
1098 r->header_start = new + (r->header_start - old);
|
|
1099 r->header_end = new + (r->header_end - old);
|
|
1100 }
|
|
1101
|
|
1102 r->header_in = b;
|
|
1103
|
|
1104 return NGX_OK;
|
|
1105 }
|
|
1106
|
|
1107
|
50
|
1108 static ngx_int_t
|
58
|
1109 ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
1110 ngx_uint_t offset)
|
|
1111 {
|
|
1112 ngx_table_elt_t **ph;
|
|
1113
|
|
1114 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
1115
|
|
1116 if (*ph == NULL) {
|
|
1117 *ph = h;
|
|
1118 }
|
|
1119
|
|
1120 return NGX_OK;
|
|
1121 }
|
|
1122
|
|
1123
|
|
1124 static ngx_int_t
|
72
|
1125 ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
1126 ngx_uint_t offset)
|
|
1127 {
|
|
1128 ngx_table_elt_t **ph;
|
|
1129
|
|
1130 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
1131
|
|
1132 if (*ph == NULL) {
|
|
1133 *ph = h;
|
|
1134 return NGX_OK;
|
|
1135 }
|
|
1136
|
|
1137 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
1138 "client sent duplicate header line: \"%V: %V\"",
|
|
1139 &h->key, &h->value);
|
|
1140
|
|
1141 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
1142
|
|
1143 return NGX_ERROR;
|
|
1144 }
|
|
1145
|
|
1146
|
|
1147 static ngx_int_t
|
58
|
1148 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
1149 ngx_uint_t offset)
|
|
1150 {
|
|
1151 ngx_table_elt_t **cookie;
|
|
1152
|
|
1153 cookie = ngx_array_push(&r->headers_in.cookies);
|
72
|
1154 if (cookie) {
|
|
1155 *cookie = h;
|
|
1156 return NGX_OK;
|
58
|
1157 }
|
|
1158
|
72
|
1159 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
1160
|
|
1161 return NGX_ERROR;
|
58
|
1162 }
|
|
1163
|
|
1164
|
|
1165 static ngx_int_t
|
50
|
1166 ngx_http_process_request_header(ngx_http_request_t *r)
|
0
|
1167 {
|
162
|
1168 size_t len;
|
|
1169 u_char *ua, *user_agent, ch;
|
0
|
1170
|
|
1171 if (r->headers_in.host) {
|
|
1172 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
26
|
1173 ch = r->headers_in.host->value.data[len];
|
|
1174
|
|
1175 if (ch == ':') {
|
0
|
1176 break;
|
|
1177 }
|
26
|
1178
|
|
1179 r->headers_in.host->value.data[len] = ngx_tolower(ch);
|
0
|
1180 }
|
54
|
1181
|
58
|
1182 if (r->headers_in.host->value.data[len - 1] == '.') {
|
|
1183 len--;
|
|
1184 }
|
|
1185
|
0
|
1186 r->headers_in.host_name_len = len;
|
|
1187
|
162
|
1188 ngx_http_find_virtual_server(r);
|
0
|
1189
|
|
1190 } else {
|
|
1191 if (r->http_version > NGX_HTTP_VERSION_10) {
|
54
|
1192 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
1193 "client sent HTTP/1.1 request without \"Host\" header");
|
|
1194 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
1195 return NGX_ERROR;
|
0
|
1196 }
|
54
|
1197
|
0
|
1198 r->headers_in.host_name_len = 0;
|
|
1199 }
|
|
1200
|
|
1201 if (r->headers_in.content_length) {
|
|
1202 r->headers_in.content_length_n =
|
50
|
1203 ngx_atosz(r->headers_in.content_length->value.data,
|
0
|
1204 r->headers_in.content_length->value.len);
|
|
1205
|
|
1206 if (r->headers_in.content_length_n == NGX_ERROR) {
|
54
|
1207 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
1208 "client sent invalid \"Content-Length\" header");
|
130
|
1209 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
54
|
1210 return NGX_ERROR;
|
0
|
1211 }
|
|
1212 }
|
|
1213
|
32
|
1214 if (r->method == NGX_HTTP_POST && r->headers_in.content_length_n == -1) {
|
54
|
1215 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
1216 "client sent POST method without \"Content-Length\" header");
|
130
|
1217 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
1218 return NGX_ERROR;
|
|
1219 }
|
|
1220
|
|
1221 if (r->headers_in.transfer_encoding
|
|
1222 && ngx_strstr(r->headers_in.transfer_encoding->value.data, "chunked"))
|
|
1223 {
|
|
1224 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
1225 "client sent \"Transfer-Encoding: chunked\" header");
|
|
1226 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
54
|
1227 return NGX_ERROR;
|
0
|
1228 }
|
|
1229
|
|
1230 if (r->plain_http) {
|
54
|
1231 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
1232 "client sent plain HTTP request to HTTPS port");
|
|
1233 ngx_http_finalize_request(r, NGX_HTTP_TO_HTTPS);
|
|
1234 return NGX_ERROR;
|
0
|
1235 }
|
|
1236
|
|
1237 if (r->headers_in.connection) {
|
|
1238 if (r->headers_in.connection->value.len == 5
|
|
1239 && ngx_strcasecmp(r->headers_in.connection->value.data, "close")
|
58
|
1240 == 0)
|
0
|
1241 {
|
|
1242 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
1243
|
|
1244 } else if (r->headers_in.connection->value.len == 10
|
|
1245 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
58
|
1246 "keep-alive") == 0)
|
0
|
1247 {
|
|
1248 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
1249
|
|
1250 if (r->headers_in.keep_alive) {
|
|
1251 r->headers_in.keep_alive_n =
|
50
|
1252 ngx_atotm(r->headers_in.keep_alive->value.data,
|
0
|
1253 r->headers_in.keep_alive->value.len);
|
|
1254 }
|
|
1255 }
|
|
1256 }
|
|
1257
|
|
1258 if (r->headers_in.user_agent) {
|
|
1259
|
|
1260 /*
|
|
1261 * check some widespread browsers while the headers are still
|
|
1262 * in CPU cache
|
|
1263 */
|
|
1264
|
|
1265 user_agent = r->headers_in.user_agent->value.data;
|
|
1266
|
|
1267 ua = (u_char *) ngx_strstr(user_agent, "MSIE");
|
|
1268
|
|
1269 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
1270
|
|
1271 r->headers_in.msie = 1;
|
|
1272
|
|
1273 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
1274 r->headers_in.msie4 = 1;
|
|
1275 }
|
|
1276
|
|
1277 #if 0
|
|
1278 /* MSIE ignores the SSL "close notify" alert */
|
22
|
1279 if (c->ssl) {
|
96
|
1280 c->ssl->no_send_shutdown = 1;
|
22
|
1281 }
|
0
|
1282 #endif
|
|
1283 }
|
|
1284
|
|
1285 if (ngx_strstr(user_agent, "Opera")) {
|
|
1286 r->headers_in.opera = 1;
|
|
1287 r->headers_in.msie = 0;
|
|
1288 r->headers_in.msie4 = 0;
|
|
1289 }
|
|
1290
|
|
1291 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
1292
|
|
1293 if (ngx_strstr(user_agent, "Gecko/")) {
|
|
1294 r->headers_in.gecko = 1;
|
|
1295
|
|
1296 } else if (ngx_strstr(user_agent, "Konqueror")) {
|
|
1297 r->headers_in.konqueror = 1;
|
|
1298 }
|
|
1299 }
|
|
1300 }
|
|
1301
|
|
1302 return NGX_OK;
|
|
1303 }
|
|
1304
|
|
1305
|
162
|
1306 static void
|
50
|
1307 ngx_http_find_virtual_server(ngx_http_request_t *r)
|
26
|
1308 {
|
142
|
1309 size_t len;
|
|
1310 u_char *host;
|
|
1311 ngx_http_virtual_names_t *vn;
|
|
1312 ngx_http_core_loc_conf_t *clcf;
|
|
1313 ngx_http_core_srv_conf_t *cscf;
|
|
1314
|
|
1315 vn = r->virtual_names;
|
|
1316
|
|
1317 if (vn == NULL) {
|
162
|
1318 return;
|
26
|
1319 }
|
|
1320
|
142
|
1321 host = r->headers_in.host->value.data;
|
|
1322 len = r->headers_in.host_name_len;
|
|
1323
|
|
1324 /* STUB: ngx_hash_key() here is STUB */
|
|
1325
|
|
1326 if (vn->hash.buckets) {
|
|
1327 cscf = ngx_hash_find(&vn->hash, ngx_hash_key(host, len), host, len);
|
|
1328 if (cscf) {
|
58
|
1329 goto found;
|
26
|
1330 }
|
|
1331 }
|
|
1332
|
142
|
1333 if (vn->dns_wildcards && vn->dns_wildcards->hash.buckets) {
|
|
1334 cscf = ngx_hash_find_wildcard(vn->dns_wildcards, host, len);
|
|
1335
|
|
1336 if (cscf) {
|
|
1337 goto found;
|
26
|
1338 }
|
|
1339 }
|
|
1340
|
162
|
1341 return;
|
58
|
1342
|
|
1343 found:
|
|
1344
|
142
|
1345 r->server_name.len = len;
|
|
1346 r->server_name.data = host;
|
|
1347
|
|
1348 r->srv_conf = cscf->ctx->srv_conf;
|
|
1349 r->loc_conf = cscf->ctx->loc_conf;
|
58
|
1350
|
|
1351 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
1352 r->connection->log->file = clcf->err_log->file;
|
|
1353
|
|
1354 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
1355 r->connection->log->log_level = clcf->err_log->log_level;
|
26
|
1356 }
|
|
1357
|
162
|
1358 return;
|
26
|
1359 }
|
|
1360
|
|
1361
|
58
|
1362 static void
|
|
1363 ngx_http_request_handler(ngx_event_t *ev)
|
|
1364 {
|
|
1365 ngx_connection_t *c;
|
|
1366 ngx_http_request_t *r;
|
|
1367
|
|
1368 c = ev->data;
|
|
1369 r = c->data;
|
|
1370
|
|
1371 if (ev->write) {
|
|
1372 r->write_event_handler(r);
|
|
1373
|
|
1374 } else {
|
|
1375 r->read_event_handler(r);
|
|
1376 }
|
|
1377 }
|
|
1378
|
|
1379
|
50
|
1380 void
|
58
|
1381 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
0
|
1382 {
|
58
|
1383 ngx_http_request_t *pr;
|
0
|
1384 ngx_http_core_loc_conf_t *clcf;
|
|
1385
|
58
|
1386 if (rc == NGX_DONE) {
|
118
|
1387 /* the request pool may be already destroyed */
|
58
|
1388 return;
|
|
1389 }
|
|
1390
|
132
|
1391 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1392 "http finalize request: %d, \"%V?%V\"",
|
|
1393 rc, &r->uri, &r->args);
|
|
1394
|
162
|
1395 if (rc == NGX_ERROR
|
|
1396 || rc == NGX_HTTP_REQUEST_TIME_OUT
|
|
1397 || r->connection->error)
|
|
1398 {
|
|
1399
|
|
1400 if (ngx_http_post_action(r) == NGX_OK) {
|
|
1401 return;
|
|
1402 }
|
|
1403
|
118
|
1404 ngx_http_close_request(r, 0);
|
0
|
1405 return;
|
|
1406 }
|
|
1407
|
118
|
1408 if (rc >= NGX_HTTP_SPECIAL_RESPONSE || rc == NGX_HTTP_NO_CONTENT) {
|
|
1409
|
136
|
1410 if (rc == NGX_HTTP_CLOSE) {
|
|
1411 ngx_http_close_request(r, rc);
|
|
1412 return;
|
|
1413 }
|
|
1414
|
146
|
1415 if (r == r->main) {
|
118
|
1416 if (r->connection->read->timer_set) {
|
|
1417 ngx_del_timer(r->connection->read);
|
|
1418 }
|
|
1419
|
|
1420 if (r->connection->write->timer_set) {
|
|
1421 ngx_del_timer(r->connection->write);
|
|
1422 }
|
|
1423 }
|
|
1424
|
|
1425 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
1426
|
|
1427 return;
|
|
1428 }
|
|
1429
|
146
|
1430 if (r != r->main || rc == NGX_AGAIN) {
|
74
|
1431 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
1432 return;
|
|
1433 }
|
58
|
1434 }
|
|
1435
|
|
1436 r->done = 1;
|
|
1437
|
|
1438 if (r != r->connection->data) {
|
132
|
1439 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1440 "http finalize non-active request: \"%V?%V\"",
|
|
1441 &r->uri, &r->args);
|
58
|
1442 return;
|
|
1443 }
|
|
1444
|
146
|
1445 if (r != r->main) {
|
58
|
1446
|
|
1447 pr = r->parent;
|
|
1448
|
132
|
1449 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1450 "http parent request: \"%V?%V\"", &pr->uri, &pr->args);
|
76
|
1451
|
58
|
1452 if (rc != NGX_AGAIN) {
|
146
|
1453 r->connection->data = pr;
|
58
|
1454 }
|
|
1455
|
|
1456 if (pr->postponed) {
|
|
1457
|
132
|
1458 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1459 "http request: \"%V?%V\" has postponed",
|
|
1460 &pr->uri, &pr->args);
|
76
|
1461
|
58
|
1462 if (rc != NGX_AGAIN && pr->postponed->request == r) {
|
|
1463 pr->postponed = pr->postponed->next;
|
146
|
1464 }
|
|
1465
|
|
1466 if (r->fast_subrequest) {
|
|
1467 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1468 "http fast subrequest: \"%V?%V\" done",
|
|
1469 &r->uri, &r->args);
|
|
1470 return;
|
58
|
1471 }
|
|
1472
|
132
|
1473 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
146
|
1474 "http wake parent request: \"%V?%V\"",
|
|
1475 &pr->uri, &pr->args);
|
|
1476
|
|
1477 pr->write_event_handler(pr);
|
|
1478
|
|
1479 #if 0
|
|
1480 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
132
|
1481 "http request: \"%V?%V\" still has postponed",
|
|
1482 &pr->uri, &pr->args);
|
|
1483
|
|
1484 if (pr->done || pr->postponed->out) {
|
|
1485 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1486 "http wake parent request: \"%V?%V\"",
|
|
1487 &pr->uri, &pr->args);
|
58
|
1488
|
|
1489 pr->write_event_handler(pr);
|
|
1490 }
|
146
|
1491 #endif
|
|
1492
|
58
|
1493 }
|
|
1494
|
|
1495 return;
|
|
1496 }
|
0
|
1497
|
118
|
1498 if (rc == NGX_AGAIN) {
|
0
|
1499 return;
|
76
|
1500 }
|
|
1501
|
146
|
1502 if (r->connection->buffered) {
|
74
|
1503 (void) ngx_http_set_write_handler(r);
|
0
|
1504 return;
|
|
1505 }
|
|
1506
|
162
|
1507 if (ngx_http_post_action(r) == NGX_OK) {
|
126
|
1508 return;
|
|
1509 }
|
|
1510
|
0
|
1511 if (r->connection->read->timer_set) {
|
|
1512 ngx_del_timer(r->connection->read);
|
|
1513 }
|
|
1514
|
|
1515 if (r->connection->write->timer_set) {
|
|
1516 r->connection->write->delayed = 0;
|
|
1517 ngx_del_timer(r->connection->write);
|
|
1518 }
|
|
1519
|
138
|
1520 if (r->connection->destroyed) {
|
|
1521 return;
|
|
1522 }
|
|
1523
|
162
|
1524 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
0
|
1525
|
|
1526 if (!ngx_terminate
|
|
1527 && !ngx_exiting
|
|
1528 && r->keepalive != 0
|
|
1529 && clcf->keepalive_timeout > 0)
|
|
1530 {
|
|
1531 ngx_http_set_keepalive(r);
|
|
1532 return;
|
|
1533
|
|
1534 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
1535 ngx_http_set_lingering_close(r);
|
|
1536 return;
|
|
1537 }
|
|
1538
|
|
1539 ngx_http_close_request(r, 0);
|
|
1540 }
|
|
1541
|
|
1542
|
74
|
1543 static ngx_int_t
|
50
|
1544 ngx_http_set_write_handler(ngx_http_request_t *r)
|
0
|
1545 {
|
|
1546 ngx_event_t *wev;
|
|
1547 ngx_http_core_loc_conf_t *clcf;
|
|
1548
|
58
|
1549 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
1550
|
74
|
1551 r->write_event_handler = ngx_http_writer;
|
|
1552
|
0
|
1553 wev = r->connection->write;
|
|
1554
|
|
1555 if (wev->ready && wev->delayed) {
|
74
|
1556 return NGX_OK;
|
0
|
1557 }
|
|
1558
|
58
|
1559 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
0
|
1560 if (!wev->delayed) {
|
|
1561 ngx_add_timer(wev, clcf->send_timeout);
|
|
1562 }
|
|
1563
|
2
|
1564 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
0
|
1565 ngx_http_close_request(r, 0);
|
74
|
1566 return NGX_ERROR;
|
0
|
1567 }
|
74
|
1568
|
|
1569 return NGX_OK;
|
0
|
1570 }
|
|
1571
|
|
1572
|
58
|
1573 static void
|
|
1574 ngx_http_writer(ngx_http_request_t *r)
|
0
|
1575 {
|
|
1576 int rc;
|
58
|
1577 ngx_event_t *wev;
|
0
|
1578 ngx_connection_t *c;
|
|
1579 ngx_http_core_loc_conf_t *clcf;
|
|
1580
|
58
|
1581 c = r->connection;
|
|
1582 wev = c->write;
|
|
1583
|
132
|
1584 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
1585 "http writer handler: \"%V?%V\"", &r->uri, &r->args);
|
0
|
1586
|
|
1587 if (wev->timedout) {
|
|
1588 if (!wev->delayed) {
|
54
|
1589 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
1590 "client timed out");
|
|
1591 c->timedout = 1;
|
116
|
1592
|
162
|
1593 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
0
|
1594 return;
|
|
1595 }
|
|
1596
|
|
1597 wev->timedout = 0;
|
|
1598 wev->delayed = 0;
|
|
1599
|
|
1600 if (!wev->ready) {
|
102
|
1601 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
0
|
1602 ngx_add_timer(wev, clcf->send_timeout);
|
|
1603
|
2
|
1604 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
118
|
1605 ngx_http_close_request(r, 0);
|
0
|
1606 }
|
|
1607
|
|
1608 return;
|
|
1609 }
|
|
1610
|
|
1611 } else {
|
|
1612 if (wev->delayed) {
|
|
1613 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
1614 "http writer delayed");
|
|
1615
|
102
|
1616 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
2
|
1617
|
|
1618 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
118
|
1619 ngx_http_close_request(r, 0);
|
0
|
1620 }
|
|
1621
|
|
1622 return;
|
|
1623 }
|
|
1624 }
|
|
1625
|
132
|
1626 rc = ngx_http_output_filter(r, NULL);
|
|
1627
|
|
1628 if (c->destroyed) {
|
|
1629 return;
|
58
|
1630 }
|
|
1631
|
132
|
1632 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
1633 "http writer output filter: %d, \"%V?%V\"",
|
|
1634 rc, &r->uri, &r->args);
|
0
|
1635
|
|
1636 if (rc == NGX_AGAIN) {
|
102
|
1637 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
0
|
1638 if (!wev->ready && !wev->delayed) {
|
|
1639 ngx_add_timer(wev, clcf->send_timeout);
|
|
1640 }
|
|
1641
|
2
|
1642 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
118
|
1643 ngx_http_close_request(r, 0);
|
0
|
1644 }
|
|
1645
|
146
|
1646 if (r == r->main) {
|
|
1647 return;
|
|
1648 }
|
|
1649
|
|
1650 rc = NGX_OK;
|
0
|
1651 }
|
|
1652
|
132
|
1653 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
1654 "http writer done: \"%V?%V\"", &r->uri, &r->args);
|
0
|
1655
|
|
1656 ngx_http_finalize_request(r, rc);
|
|
1657 }
|
|
1658
|
|
1659
|
50
|
1660 static void
|
58
|
1661 ngx_http_block_read(ngx_http_request_t *r)
|
0
|
1662 {
|
58
|
1663 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1664 "http read blocked");
|
0
|
1665
|
|
1666 /* aio does not call this handler */
|
|
1667
|
58
|
1668 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT)
|
|
1669 && r->connection->read->active)
|
|
1670 {
|
|
1671 if (ngx_del_event(r->connection->read, NGX_READ_EVENT, 0)
|
|
1672 == NGX_ERROR)
|
|
1673 {
|
0
|
1674 ngx_http_close_request(r, 0);
|
|
1675 }
|
|
1676 }
|
|
1677 }
|
|
1678
|
|
1679
|
50
|
1680 ngx_int_t
|
|
1681 ngx_http_discard_body(ngx_http_request_t *r)
|
0
|
1682 {
|
|
1683 ssize_t size;
|
|
1684 ngx_event_t *rev;
|
|
1685
|
146
|
1686 if (r != r->main) {
|
70
|
1687 return NGX_OK;
|
|
1688 }
|
|
1689
|
0
|
1690 rev = r->connection->read;
|
|
1691
|
|
1692 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http set discard body");
|
|
1693
|
|
1694 if (rev->timer_set) {
|
|
1695 ngx_del_timer(rev);
|
|
1696 }
|
|
1697
|
|
1698 if (r->headers_in.content_length_n <= 0) {
|
|
1699 return NGX_OK;
|
|
1700 }
|
|
1701
|
86
|
1702 r->discard_body = 1;
|
|
1703
|
0
|
1704 size = r->header_in->last - r->header_in->pos;
|
|
1705
|
|
1706 if (size) {
|
|
1707 if (r->headers_in.content_length_n > size) {
|
|
1708 r->headers_in.content_length_n -= size;
|
|
1709
|
|
1710 } else {
|
|
1711 r->header_in->pos += r->headers_in.content_length_n;
|
|
1712 r->headers_in.content_length_n = 0;
|
|
1713 return NGX_OK;
|
|
1714 }
|
|
1715 }
|
|
1716
|
58
|
1717 r->read_event_handler = ngx_http_read_discarded_body_handler;
|
|
1718
|
|
1719 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
0
|
1720 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
1721 }
|
|
1722
|
|
1723 return ngx_http_read_discarded_body(r);
|
|
1724 }
|
|
1725
|
|
1726
|
50
|
1727 static void
|
58
|
1728 ngx_http_read_discarded_body_handler(ngx_http_request_t *r)
|
0
|
1729 {
|
58
|
1730 ngx_int_t rc;
|
0
|
1731
|
|
1732 rc = ngx_http_read_discarded_body(r);
|
|
1733
|
|
1734 if (rc == NGX_AGAIN) {
|
58
|
1735 if (ngx_handle_read_event(r->connection->read, 0) == NGX_ERROR) {
|
0
|
1736 ngx_http_close_request(r, rc);
|
|
1737 return;
|
|
1738 }
|
|
1739 }
|
|
1740
|
|
1741 if (rc != NGX_OK) {
|
|
1742 ngx_http_close_request(r, rc);
|
|
1743 }
|
|
1744 }
|
|
1745
|
|
1746
|
50
|
1747 static ngx_int_t
|
|
1748 ngx_http_read_discarded_body(ngx_http_request_t *r)
|
0
|
1749 {
|
|
1750 ssize_t size, n;
|
|
1751 u_char buffer[NGX_HTTP_DISCARD_BUFFER_SIZE];
|
|
1752
|
|
1753 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1754 "http read discarded body");
|
|
1755
|
|
1756 if (r->headers_in.content_length_n == 0) {
|
|
1757 return NGX_OK;
|
|
1758 }
|
|
1759
|
|
1760
|
|
1761 size = r->headers_in.content_length_n;
|
|
1762
|
|
1763 if (size > NGX_HTTP_DISCARD_BUFFER_SIZE) {
|
|
1764 size = NGX_HTTP_DISCARD_BUFFER_SIZE;
|
|
1765 }
|
|
1766
|
|
1767 n = r->connection->recv(r->connection, buffer, size);
|
|
1768
|
|
1769 if (n == NGX_ERROR) {
|
|
1770
|
132
|
1771 r->connection->error = 1;
|
0
|
1772
|
|
1773 /*
|
|
1774 * if a client request body is discarded then we already set
|
|
1775 * some HTTP response code for client and we can ignore the error
|
|
1776 */
|
|
1777
|
|
1778 return NGX_OK;
|
|
1779 }
|
|
1780
|
|
1781 if (n == NGX_AGAIN) {
|
|
1782 return NGX_AGAIN;
|
|
1783 }
|
|
1784
|
|
1785 r->headers_in.content_length_n -= n;
|
|
1786
|
|
1787 return NGX_OK;
|
|
1788 }
|
|
1789
|
|
1790
|
50
|
1791 static void
|
|
1792 ngx_http_set_keepalive(ngx_http_request_t *r)
|
0
|
1793 {
|
2
|
1794 int tcp_nodelay;
|
0
|
1795 ngx_int_t i;
|
|
1796 ngx_buf_t *b, *f;
|
|
1797 ngx_event_t *rev, *wev;
|
|
1798 ngx_connection_t *c;
|
|
1799 ngx_http_connection_t *hc;
|
|
1800 ngx_http_core_srv_conf_t *cscf;
|
|
1801 ngx_http_core_loc_conf_t *clcf;
|
|
1802
|
|
1803 c = r->connection;
|
|
1804 rev = c->read;
|
|
1805
|
|
1806 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
1807
|
32
|
1808 c->log->action = "closing request";
|
0
|
1809
|
|
1810 hc = r->http_connection;
|
|
1811 b = r->header_in;
|
|
1812
|
|
1813 if (b->pos < b->last) {
|
|
1814
|
|
1815 /* the pipelined request */
|
|
1816
|
|
1817 if (b != c->buffer) {
|
|
1818
|
4
|
1819 /*
|
|
1820 * If the large header buffers were allocated while the previous
|
|
1821 * request processing then we do not use c->buffer for
|
|
1822 * the pipelined request (see ngx_http_init_request()).
|
126
|
1823 *
|
4
|
1824 * Now we would move the large header buffers to the free list.
|
|
1825 */
|
0
|
1826
|
|
1827 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
1828
|
|
1829 if (hc->free == NULL) {
|
|
1830 hc->free = ngx_palloc(c->pool,
|
|
1831 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
1832
|
|
1833 if (hc->free == NULL) {
|
26
|
1834 ngx_http_close_request(r, 0);
|
0
|
1835 return;
|
|
1836 }
|
|
1837 }
|
|
1838
|
|
1839 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
1840 f = hc->busy[i];
|
|
1841 hc->free[hc->nfree++] = f;
|
|
1842 f->pos = f->start;
|
|
1843 f->last = f->start;
|
|
1844 }
|
|
1845
|
|
1846 hc->busy[0] = b;
|
|
1847 hc->nbusy = 1;
|
|
1848 }
|
|
1849 }
|
|
1850
|
26
|
1851 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
1852
|
118
|
1853 ngx_http_request_done(r, 0);
|
|
1854
|
0
|
1855 c->data = hc;
|
|
1856
|
|
1857 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
1858
|
58
|
1859 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
0
|
1860 ngx_http_close_connection(c);
|
|
1861 return;
|
|
1862 }
|
|
1863
|
|
1864 wev = c->write;
|
58
|
1865 wev->handler = ngx_http_empty_handler;
|
0
|
1866
|
|
1867 if (b->pos < b->last) {
|
|
1868
|
|
1869 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
1870
|
116
|
1871 #if (NGX_STAT_STUB)
|
|
1872 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
1873 #endif
|
|
1874
|
0
|
1875 hc->pipeline = 1;
|
32
|
1876 c->log->action = "reading client pipelined request line";
|
116
|
1877
|
0
|
1878 ngx_http_init_request(rev);
|
|
1879 return;
|
|
1880 }
|
|
1881
|
|
1882 hc->pipeline = 0;
|
|
1883
|
4
|
1884 /*
|
|
1885 * To keep a memory footprint as small as possible for an idle
|
|
1886 * keepalive connection we try to free the ngx_http_request_t and
|
|
1887 * c->buffer's memory if they were allocated outside the c->pool.
|
|
1888 * The large header buffers are always allocated outside the c->pool and
|
|
1889 * are freed too.
|
|
1890 */
|
|
1891
|
0
|
1892 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
1893 hc->request = NULL;
|
|
1894 }
|
|
1895
|
|
1896 b = c->buffer;
|
|
1897
|
|
1898 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
4
|
1899
|
|
1900 /*
|
|
1901 * the special note for ngx_http_keepalive_handler() that
|
|
1902 * c->buffer's memory was freed
|
|
1903 */
|
|
1904
|
0
|
1905 b->pos = NULL;
|
|
1906
|
|
1907 } else {
|
|
1908 b->pos = b->start;
|
|
1909 b->last = b->start;
|
|
1910 }
|
|
1911
|
10
|
1912 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
0
|
1913 hc->free, hc->nfree);
|
|
1914
|
|
1915 if (hc->free) {
|
|
1916 for (i = 0; i < hc->nfree; i++) {
|
|
1917 ngx_pfree(c->pool, hc->free[i]);
|
|
1918 hc->free[i] = NULL;
|
|
1919 }
|
|
1920
|
|
1921 hc->nfree = 0;
|
|
1922 }
|
|
1923
|
10
|
1924 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
0
|
1925 hc->busy, hc->nbusy);
|
|
1926
|
|
1927 if (hc->busy) {
|
|
1928 for (i = 0; i < hc->nbusy; i++) {
|
|
1929 ngx_pfree(c->pool, hc->busy[i]);
|
|
1930 hc->busy[i] = NULL;
|
|
1931 }
|
|
1932
|
|
1933 hc->nbusy = 0;
|
|
1934 }
|
|
1935
|
58
|
1936 rev->handler = ngx_http_keepalive_handler;
|
0
|
1937
|
132
|
1938 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
1939 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
1940 ngx_http_close_connection(c);
|
|
1941 return;
|
0
|
1942 }
|
|
1943 }
|
|
1944
|
32
|
1945 c->log->action = "keepalive";
|
0
|
1946
|
|
1947 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
50
|
1948 if (ngx_tcp_push(c->fd) == -1) {
|
0
|
1949 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
1950 ngx_http_close_connection(c);
|
|
1951 return;
|
|
1952 }
|
2
|
1953
|
0
|
1954 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
22
|
1955 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
2
|
1956
|
|
1957 } else {
|
22
|
1958 tcp_nodelay = 1;
|
|
1959 }
|
|
1960
|
32
|
1961 if (tcp_nodelay
|
|
1962 && clcf->tcp_nodelay
|
|
1963 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
1964 {
|
22
|
1965 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
1966
|
|
1967 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
1968 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
1969 {
|
|
1970 ngx_connection_error(c, ngx_socket_errno,
|
|
1971 "setsockopt(TCP_NODELAY) failed");
|
|
1972 ngx_http_close_connection(c);
|
|
1973 return;
|
2
|
1974 }
|
22
|
1975
|
32
|
1976 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
0
|
1977 }
|
|
1978
|
|
1979 #if 0
|
4
|
1980 /* if ngx_http_request_t was freed then we need some other place */
|
0
|
1981 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
1982 #endif
|
|
1983
|
|
1984 if (rev->ready) {
|
|
1985 ngx_http_keepalive_handler(rev);
|
|
1986 }
|
|
1987 }
|
|
1988
|
|
1989
|
50
|
1990 static void
|
|
1991 ngx_http_keepalive_handler(ngx_event_t *rev)
|
0
|
1992 {
|
50
|
1993 size_t size;
|
|
1994 ssize_t n;
|
|
1995 ngx_buf_t *b;
|
|
1996 ngx_connection_t *c;
|
0
|
1997
|
|
1998 c = rev->data;
|
|
1999
|
|
2000 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
2001
|
|
2002 if (rev->timedout) {
|
|
2003 ngx_http_close_connection(c);
|
|
2004 return;
|
|
2005 }
|
|
2006
|
18
|
2007 #if (NGX_HAVE_KQUEUE)
|
0
|
2008
|
4
|
2009 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
136
|
2010 if (rev->pending_eof) {
|
32
|
2011 c->log->handler = NULL;
|
0
|
2012 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
10
|
2013 "kevent() reported that client %V closed "
|
32
|
2014 "keepalive connection", &c->addr_text);
|
22
|
2015 #if (NGX_HTTP_SSL)
|
|
2016 if (c->ssl) {
|
96
|
2017 c->ssl->no_send_shutdown = 1;
|
22
|
2018 }
|
|
2019 #endif
|
0
|
2020 ngx_http_close_connection(c);
|
|
2021 return;
|
|
2022 }
|
|
2023 }
|
|
2024
|
|
2025 #endif
|
|
2026
|
|
2027 b = c->buffer;
|
|
2028 size = b->end - b->start;
|
|
2029
|
|
2030 if (b->pos == NULL) {
|
4
|
2031
|
|
2032 /*
|
|
2033 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
2034 * However, the c->buffer->start and c->buffer->end were not changed
|
|
2035 * to keep the buffer size.
|
|
2036 */
|
|
2037
|
50
|
2038 b->pos = ngx_palloc(c->pool, size);
|
|
2039 if (b->pos == NULL) {
|
0
|
2040 ngx_http_close_connection(c);
|
|
2041 return;
|
|
2042 }
|
|
2043
|
|
2044 b->start = b->pos;
|
|
2045 b->last = b->pos;
|
|
2046 b->end = b->pos + size;
|
|
2047 }
|
|
2048
|
|
2049 /*
|
|
2050 * MSIE closes a keepalive connection with RST flag
|
|
2051 * so we ignore ECONNRESET here.
|
|
2052 */
|
|
2053
|
|
2054 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
2055 ngx_set_socket_errno(0);
|
|
2056
|
|
2057 n = c->recv(c, b->last, size);
|
|
2058 c->log_error = NGX_ERROR_INFO;
|
|
2059
|
|
2060 if (n == NGX_AGAIN) {
|
58
|
2061 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
24
|
2062 ngx_http_close_connection(c);
|
|
2063 }
|
|
2064
|
0
|
2065 return;
|
|
2066 }
|
|
2067
|
|
2068 if (n == NGX_ERROR) {
|
|
2069 ngx_http_close_connection(c);
|
|
2070 return;
|
|
2071 }
|
|
2072
|
32
|
2073 c->log->handler = NULL;
|
0
|
2074
|
|
2075 if (n == 0) {
|
|
2076 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
32
|
2077 "client %V closed keepalive connection", &c->addr_text);
|
0
|
2078 ngx_http_close_connection(c);
|
|
2079 return;
|
|
2080 }
|
|
2081
|
|
2082 b->last += n;
|
32
|
2083
|
116
|
2084 #if (NGX_STAT_STUB)
|
|
2085 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
2086 #endif
|
|
2087
|
32
|
2088 c->log->handler = ngx_http_log_error;
|
|
2089 c->log->action = "reading client request line";
|
0
|
2090
|
|
2091 ngx_http_init_request(rev);
|
|
2092 }
|
|
2093
|
|
2094
|
50
|
2095 static void
|
|
2096 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
126
|
2097 {
|
0
|
2098 ngx_event_t *rev, *wev;
|
|
2099 ngx_connection_t *c;
|
|
2100 ngx_http_core_loc_conf_t *clcf;
|
|
2101
|
|
2102 c = r->connection;
|
|
2103
|
|
2104 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
2105
|
|
2106 rev = c->read;
|
58
|
2107 rev->handler = ngx_http_lingering_close_handler;
|
0
|
2108
|
106
|
2109 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
0
|
2110 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
2111
|
58
|
2112 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
0
|
2113 ngx_http_close_request(r, 0);
|
|
2114 return;
|
|
2115 }
|
|
2116
|
|
2117 wev = c->write;
|
58
|
2118 wev->handler = ngx_http_empty_handler;
|
0
|
2119
|
132
|
2120 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
2121 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
2122 ngx_http_close_request(r, 0);
|
|
2123 return;
|
0
|
2124 }
|
|
2125 }
|
|
2126
|
|
2127 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
2128 ngx_connection_error(c, ngx_socket_errno,
|
|
2129 ngx_shutdown_socket_n " failed");
|
|
2130 ngx_http_close_request(r, 0);
|
|
2131 return;
|
|
2132 }
|
|
2133
|
|
2134 if (rev->ready) {
|
|
2135 ngx_http_lingering_close_handler(rev);
|
|
2136 }
|
|
2137 }
|
|
2138
|
|
2139
|
50
|
2140 static void
|
|
2141 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
0
|
2142 {
|
|
2143 ssize_t n;
|
|
2144 ngx_msec_t timer;
|
|
2145 ngx_connection_t *c;
|
|
2146 ngx_http_request_t *r;
|
|
2147 ngx_http_core_loc_conf_t *clcf;
|
|
2148 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
2149
|
|
2150 c = rev->data;
|
|
2151 r = c->data;
|
|
2152
|
|
2153 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
2154 "http lingering close handler");
|
|
2155
|
|
2156 if (rev->timedout) {
|
126
|
2157 c->timedout = 1;
|
0
|
2158 ngx_http_close_request(r, 0);
|
|
2159 return;
|
|
2160 }
|
|
2161
|
|
2162 timer = r->lingering_time - ngx_time();
|
|
2163 if (timer <= 0) {
|
|
2164 ngx_http_close_request(r, 0);
|
|
2165 return;
|
|
2166 }
|
|
2167
|
|
2168 do {
|
|
2169 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
2170
|
|
2171 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
2172
|
|
2173 if (n == NGX_ERROR || n == 0) {
|
|
2174 ngx_http_close_request(r, 0);
|
|
2175 return;
|
|
2176 }
|
|
2177
|
|
2178 } while (rev->ready);
|
|
2179
|
58
|
2180 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
26
|
2181 ngx_http_close_request(r, 0);
|
24
|
2182 return;
|
|
2183 }
|
|
2184
|
0
|
2185 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
2186
|
|
2187 timer *= 1000;
|
|
2188
|
|
2189 if (timer > clcf->lingering_timeout) {
|
|
2190 timer = clcf->lingering_timeout;
|
|
2191 }
|
|
2192
|
|
2193 ngx_add_timer(rev, timer);
|
|
2194 }
|
|
2195
|
|
2196
|
50
|
2197 void
|
|
2198 ngx_http_empty_handler(ngx_event_t *wev)
|
0
|
2199 {
|
|
2200 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
2201
|
|
2202 return;
|
|
2203 }
|
|
2204
|
|
2205
|
58
|
2206 void
|
|
2207 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
2208 {
|
|
2209 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
132
|
2210 "http request empty handler");
|
58
|
2211
|
|
2212 return;
|
|
2213 }
|
|
2214
|
|
2215
|
50
|
2216 ngx_int_t
|
130
|
2217 ngx_http_send_special(ngx_http_request_t *r, ngx_uint_t flags)
|
0
|
2218 {
|
|
2219 ngx_buf_t *b;
|
|
2220 ngx_chain_t out;
|
|
2221
|
50
|
2222 b = ngx_calloc_buf(r->pool);
|
|
2223 if (b == NULL) {
|
0
|
2224 return NGX_ERROR;
|
|
2225 }
|
|
2226
|
130
|
2227 if (flags & NGX_HTTP_LAST) {
|
|
2228 b->last_buf = 1;
|
|
2229 }
|
|
2230
|
|
2231 if (flags & NGX_HTTP_FLUSH) {
|
|
2232 b->flush = 1;
|
|
2233 }
|
|
2234
|
0
|
2235 out.buf = b;
|
|
2236 out.next = NULL;
|
|
2237
|
|
2238 return ngx_http_output_filter(r, &out);
|
|
2239 }
|
|
2240
|
|
2241
|
162
|
2242 static ngx_int_t
|
|
2243 ngx_http_post_action(ngx_http_request_t *r)
|
|
2244 {
|
|
2245 ngx_http_core_loc_conf_t *clcf;
|
|
2246
|
|
2247 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
2248
|
|
2249 if (clcf->post_action.data == NULL) {
|
|
2250 return NGX_DECLINED;
|
|
2251 }
|
|
2252
|
|
2253 r->http_version = NGX_HTTP_VERSION_9;
|
|
2254 r->header_only = 1;
|
|
2255
|
|
2256 ngx_http_internal_redirect(r, &clcf->post_action, NULL);
|
|
2257
|
|
2258 return NGX_OK;
|
|
2259 }
|
|
2260
|
|
2261
|
|
2262 static void
|
58
|
2263 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error)
|
0
|
2264 {
|
118
|
2265 ngx_connection_t *c;
|
|
2266 ngx_http_cleanup_t *cln;
|
|
2267
|
|
2268 c = r->connection;
|
|
2269 r = r->main;
|
|
2270
|
|
2271 for (cln = r->cleanup; cln; cln = cln->next) {
|
|
2272 if (cln->handler) {
|
|
2273 cln->handler(cln->data);
|
|
2274 }
|
|
2275 }
|
|
2276
|
|
2277 ngx_http_request_done(r, error);
|
|
2278 ngx_http_close_connection(c);
|
|
2279 }
|
|
2280
|
|
2281
|
162
|
2282 static void
|
118
|
2283 ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error)
|
|
2284 {
|
|
2285 ngx_log_t *log;
|
130
|
2286 ngx_uint_t i, n;
|
118
|
2287 struct linger linger;
|
|
2288 ngx_http_log_ctx_t *ctx;
|
130
|
2289 ngx_http_handler_pt *log_handler;
|
118
|
2290 ngx_http_core_loc_conf_t *clcf;
|
|
2291 ngx_http_core_main_conf_t *cmcf;
|
0
|
2292
|
|
2293 log = r->connection->log;
|
|
2294
|
|
2295 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
2296
|
|
2297 if (r->pool == NULL) {
|
80
|
2298 ngx_log_error(NGX_LOG_ALERT, log, 0, "http request already closed");
|
0
|
2299 return;
|
|
2300 }
|
|
2301
|
|
2302 #if (NGX_STAT_STUB)
|
116
|
2303
|
0
|
2304 if (r->stat_reading) {
|
110
|
2305 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
0
|
2306 }
|
|
2307
|
|
2308 if (r->stat_writing) {
|
110
|
2309 ngx_atomic_fetch_add(ngx_stat_writing, -1);
|
0
|
2310 }
|
116
|
2311
|
0
|
2312 #endif
|
|
2313
|
|
2314 if (error && r->headers_out.status == 0) {
|
|
2315 r->headers_out.status = error;
|
|
2316 }
|
|
2317
|
118
|
2318 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
2319
|
130
|
2320 log_handler = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.elts;
|
|
2321 n = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.nelts;
|
|
2322 for (i = 0; i < n; i++) {
|
|
2323 log_handler[i](r);
|
118
|
2324 }
|
0
|
2325
|
|
2326 if (r->connection->timedout) {
|
|
2327 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
2328
|
|
2329 if (clcf->reset_timedout_connection) {
|
58
|
2330 linger.l_onoff = 1;
|
|
2331 linger.l_linger = 0;
|
0
|
2332
|
|
2333 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
58
|
2334 (const void *) &linger, sizeof(struct linger)) == -1)
|
0
|
2335 {
|
|
2336 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
2337 "setsockopt(SO_LINGER) failed");
|
|
2338 }
|
|
2339 }
|
|
2340 }
|
|
2341
|
58
|
2342 /* the various request strings were allocated from r->pool */
|
0
|
2343 ctx = log->data;
|
10
|
2344 ctx->request = NULL;
|
0
|
2345
|
|
2346 r->request_line.len = 0;
|
|
2347
|
132
|
2348 r->connection->destroyed = 1;
|
|
2349
|
0
|
2350 ngx_destroy_pool(r->pool);
|
|
2351 }
|
|
2352
|
|
2353
|
80
|
2354 static void
|
50
|
2355 ngx_http_close_connection(ngx_connection_t *c)
|
0
|
2356 {
|
28
|
2357 ngx_pool_t *pool;
|
|
2358
|
0
|
2359 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
2360 "close http connection: %d", c->fd);
|
|
2361
|
88
|
2362 #if (NGX_HTTP_SSL)
|
2
|
2363
|
|
2364 if (c->ssl) {
|
|
2365 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
126
|
2366 c->ssl->handler = ngx_http_close_connection;
|
2
|
2367 return;
|
|
2368 }
|
|
2369 }
|
|
2370
|
|
2371 #endif
|
|
2372
|
0
|
2373 #if (NGX_STAT_STUB)
|
110
|
2374 ngx_atomic_fetch_add(ngx_stat_active, -1);
|
0
|
2375 #endif
|
|
2376
|
132
|
2377 c->destroyed = 1;
|
|
2378
|
28
|
2379 pool = c->pool;
|
|
2380
|
0
|
2381 ngx_close_connection(c);
|
28
|
2382
|
50
|
2383 ngx_destroy_pool(pool);
|
0
|
2384 }
|
|
2385
|
|
2386
|
50
|
2387 static u_char *
|
|
2388 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
0
|
2389 {
|
32
|
2390 u_char *p;
|
54
|
2391 ngx_http_request_t *r;
|
32
|
2392 ngx_http_log_ctx_t *ctx;
|
10
|
2393
|
32
|
2394 if (log->action) {
|
58
|
2395 p = ngx_snprintf(buf, len, " while %s", log->action);
|
10
|
2396 len -= p - buf;
|
54
|
2397 buf = p;
|
10
|
2398 }
|
|
2399
|
58
|
2400 ctx = log->data;
|
|
2401
|
54
|
2402 p = ngx_snprintf(buf, len, ", client: %V", ctx->client);
|
58
|
2403 len -= p - buf;
|
54
|
2404
|
|
2405 r = ctx->request;
|
|
2406
|
58
|
2407 if (r) {
|
|
2408 return r->log_handler(r, p, len);
|
0
|
2409 }
|
10
|
2410
|
58
|
2411 return p;
|
|
2412 }
|
|
2413
|
|
2414
|
|
2415 static u_char *
|
|
2416 ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
2417 {
|
|
2418 u_char *p;
|
54
|
2419
|
|
2420 if (r->server_name.data) {
|
|
2421 p = ngx_snprintf(buf, len, ", server: %V", &r->server_name);
|
52
|
2422 len -= p - buf;
|
54
|
2423 buf = p;
|
52
|
2424 }
|
|
2425
|
54
|
2426 if (r->unparsed_uri.data) {
|
|
2427 p = ngx_snprintf(buf, len, ", URL: \"%V\"", &r->unparsed_uri);
|
|
2428 len -= p - buf;
|
|
2429 buf = p;
|
|
2430
|
|
2431 } else {
|
|
2432 if (r->request_line.data == NULL && r->request_start) {
|
|
2433 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
2434 if (*p == CR || *p == LF) {
|
|
2435 break;
|
|
2436 }
|
|
2437 }
|
|
2438
|
|
2439 r->request_line.len = p - r->request_start;
|
|
2440 r->request_line.data = r->request_start;
|
|
2441 }
|
|
2442
|
|
2443 if (r->request_line.len) {
|
|
2444 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
2445 len -= p - buf;
|
|
2446 buf = p;
|
|
2447 }
|
10
|
2448 }
|
|
2449
|
54
|
2450 return ngx_http_log_error_info(r, buf, len);
|
0
|
2451 }
|
54
|
2452
|
|
2453
|
|
2454 u_char *
|
|
2455 ngx_http_log_error_info(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
2456 {
|
|
2457 u_char *p;
|
|
2458
|
|
2459 if (r->headers_in.host) {
|
|
2460 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
2461 &r->headers_in.host->value);
|
|
2462 len -= p - buf;
|
|
2463 buf = p;
|
|
2464 }
|
|
2465
|
|
2466 if (r->headers_in.referer) {
|
|
2467 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
2468 &r->headers_in.referer->value);
|
|
2469 buf = p;
|
|
2470 }
|
|
2471
|
|
2472 return buf;
|
|
2473 }
|