|
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);
|
|
26
|
28 static ngx_int_t 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 static ngx_int_t ngx_http_postponed_handler(ngx_http_request_t *r);
|
|
|
34
|
|
|
35 static void ngx_http_block_read(ngx_http_request_t *r);
|
|
|
36 static void ngx_http_read_discarded_body_handler(ngx_http_request_t *r);
|
|
0
|
37 static ngx_int_t ngx_http_read_discarded_body(ngx_http_request_t *r);
|
|
|
38
|
|
|
39 static void ngx_http_set_keepalive(ngx_http_request_t *r);
|
|
|
40 static void ngx_http_keepalive_handler(ngx_event_t *ev);
|
|
|
41 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
|
|
|
42 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
|
|
80
|
43 static void ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error);
|
|
|
44 static void ngx_http_close_connection(ngx_connection_t *c);
|
|
0
|
45
|
|
32
|
46 static u_char *ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len);
|
|
58
|
47 static u_char *ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf,
|
|
|
48 size_t len);
|
|
0
|
49
|
|
88
|
50 #if (NGX_HTTP_SSL)
|
|
|
51 static void ngx_http_ssl_handshake(ngx_event_t *rev);
|
|
|
52 static void ngx_http_ssl_close_handler(ngx_event_t *ev);
|
|
|
53 #endif
|
|
|
54
|
|
0
|
55
|
|
54
|
56 static char *ngx_http_client_errors[] = {
|
|
|
57
|
|
|
58 /* NGX_HTTP_PARSE_INVALID_METHOD */
|
|
|
59 "client sent invalid method",
|
|
|
60
|
|
|
61 /* NGX_HTTP_PARSE_INVALID_REQUEST */
|
|
|
62 "client sent invalid request",
|
|
|
63
|
|
|
64 /* NGX_HTTP_PARSE_INVALID_09_METHOD */
|
|
|
65 "client sent invalid method in HTTP/0.9 request"
|
|
0
|
66 };
|
|
|
67
|
|
|
68
|
|
|
69 ngx_http_header_t ngx_http_headers_in[] = {
|
|
58
|
70 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host),
|
|
72
|
71 ngx_http_process_unique_header_line },
|
|
58
|
72
|
|
|
73 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection),
|
|
72
|
74 ngx_http_process_unique_header_line },
|
|
58
|
75
|
|
0
|
76 { ngx_string("If-Modified-Since"),
|
|
58
|
77 offsetof(ngx_http_headers_in_t, if_modified_since),
|
|
|
78 ngx_http_process_header_line },
|
|
|
79
|
|
|
80 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent),
|
|
|
81 ngx_http_process_header_line },
|
|
|
82
|
|
|
83 { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer),
|
|
|
84 ngx_http_process_header_line },
|
|
|
85
|
|
0
|
86 { ngx_string("Content-Length"),
|
|
58
|
87 offsetof(ngx_http_headers_in_t, content_length),
|
|
72
|
88 ngx_http_process_unique_header_line },
|
|
58
|
89
|
|
28
|
90 { ngx_string("Content-Type"),
|
|
58
|
91 offsetof(ngx_http_headers_in_t, content_type),
|
|
|
92 ngx_http_process_header_line },
|
|
|
93
|
|
|
94 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range),
|
|
|
95 ngx_http_process_header_line },
|
|
|
96
|
|
0
|
97 #if (NGX_HTTP_GZIP)
|
|
|
98 { ngx_string("Accept-Encoding"),
|
|
58
|
99 offsetof(ngx_http_headers_in_t, accept_encoding),
|
|
|
100 ngx_http_process_header_line },
|
|
|
101
|
|
|
102 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via),
|
|
|
103 ngx_http_process_header_line },
|
|
0
|
104 #endif
|
|
|
105
|
|
|
106 { ngx_string("Authorization"),
|
|
58
|
107 offsetof(ngx_http_headers_in_t, authorization),
|
|
72
|
108 ngx_http_process_unique_header_line },
|
|
58
|
109
|
|
|
110 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive),
|
|
|
111 ngx_http_process_header_line },
|
|
0
|
112
|
|
|
113 #if (NGX_HTTP_PROXY)
|
|
|
114 { ngx_string("X-Forwarded-For"),
|
|
58
|
115 offsetof(ngx_http_headers_in_t, x_forwarded_for),
|
|
|
116 ngx_http_process_header_line },
|
|
0
|
117 #endif
|
|
28
|
118
|
|
38
|
119 #if (NGX_HTTP_HEADERS)
|
|
58
|
120 { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept),
|
|
|
121 ngx_http_process_header_line },
|
|
|
122
|
|
38
|
123 { ngx_string("Accept-Language"),
|
|
58
|
124 offsetof(ngx_http_headers_in_t, accept_language),
|
|
|
125 ngx_http_process_header_line },
|
|
38
|
126 #endif
|
|
|
127
|
|
58
|
128 { ngx_string("Cookie"), 0, ngx_http_process_cookie },
|
|
|
129
|
|
|
130 { ngx_null_string, 0, NULL }
|
|
0
|
131 };
|
|
|
132
|
|
|
133
|
|
50
|
134 void
|
|
|
135 ngx_http_init_connection(ngx_connection_t *c)
|
|
0
|
136 {
|
|
|
137 ngx_event_t *rev;
|
|
|
138 ngx_http_log_ctx_t *ctx;
|
|
|
139
|
|
50
|
140 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
|
|
|
141 if (ctx == NULL) {
|
|
0
|
142 ngx_http_close_connection(c);
|
|
|
143 return;
|
|
|
144 }
|
|
|
145
|
|
10
|
146 ctx->client = &c->addr_text;
|
|
|
147 ctx->request = NULL;
|
|
32
|
148
|
|
|
149 c->log->connection = c->number;
|
|
|
150 c->log->handler = ngx_http_log_error;
|
|
0
|
151 c->log->data = ctx;
|
|
32
|
152 c->log->action = "reading client request line";
|
|
|
153
|
|
0
|
154 c->log_error = NGX_ERROR_INFO;
|
|
|
155
|
|
|
156 rev = c->read;
|
|
58
|
157 rev->handler = ngx_http_init_request;
|
|
|
158
|
|
|
159 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
|
|
0
|
160
|
|
|
161 if (rev->ready) {
|
|
|
162 /* the deferred accept(), rtsig, aio, iocp */
|
|
|
163
|
|
|
164 if (ngx_accept_mutex) {
|
|
|
165 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
|
|
42
|
166
|
|
0
|
167 ngx_http_close_connection(c);
|
|
|
168 return;
|
|
|
169 }
|
|
|
170
|
|
|
171 ngx_post_event(rev);
|
|
|
172
|
|
|
173 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
42
|
174
|
|
|
175 #if (NGX_STAT_STUB)
|
|
44
|
176 ngx_atomic_inc(ngx_stat_reading);
|
|
42
|
177 #endif
|
|
0
|
178 return;
|
|
|
179 }
|
|
|
180
|
|
|
181 #if (NGX_STAT_STUB)
|
|
42
|
182 ngx_atomic_inc(ngx_stat_reading);
|
|
0
|
183 #endif
|
|
|
184
|
|
|
185 ngx_http_init_request(rev);
|
|
|
186 return;
|
|
|
187 }
|
|
|
188
|
|
|
189 ngx_add_timer(rev, c->listening->post_accept_timeout);
|
|
|
190
|
|
|
191 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
192 ngx_http_close_connection(c);
|
|
|
193 return;
|
|
|
194 }
|
|
|
195
|
|
|
196 #if (NGX_STAT_STUB)
|
|
42
|
197 ngx_atomic_inc(ngx_stat_reading);
|
|
0
|
198 #endif
|
|
|
199
|
|
|
200 }
|
|
|
201
|
|
|
202
|
|
50
|
203 static
|
|
|
204 void ngx_http_init_request(ngx_event_t *rev)
|
|
0
|
205 {
|
|
|
206 ngx_uint_t i;
|
|
|
207 socklen_t len;
|
|
28
|
208 struct sockaddr_in sin;
|
|
0
|
209 ngx_connection_t *c;
|
|
|
210 ngx_http_request_t *r;
|
|
|
211 ngx_http_in_port_t *in_port;
|
|
|
212 ngx_http_in_addr_t *in_addr;
|
|
54
|
213 ngx_http_log_ctx_t *ctx;
|
|
0
|
214 ngx_http_connection_t *hc;
|
|
|
215 ngx_http_server_name_t *server_name;
|
|
|
216 ngx_http_core_srv_conf_t *cscf;
|
|
|
217 ngx_http_core_loc_conf_t *clcf;
|
|
|
218 #if (NGX_HTTP_SSL)
|
|
|
219 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
220 #endif
|
|
|
221
|
|
|
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 #if (NGX_STAT_STUB)
|
|
42
|
228 ngx_atomic_dec(ngx_stat_reading);
|
|
0
|
229 #endif
|
|
|
230
|
|
|
231 ngx_http_close_connection(c);
|
|
|
232 return;
|
|
|
233 }
|
|
|
234
|
|
|
235 hc = c->data;
|
|
|
236
|
|
|
237 if (hc) {
|
|
|
238
|
|
|
239 #if (NGX_STAT_STUB)
|
|
42
|
240 ngx_atomic_inc(ngx_stat_reading);
|
|
0
|
241 #endif
|
|
|
242
|
|
|
243 } else {
|
|
50
|
244 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
|
|
|
245 if (hc == NULL) {
|
|
0
|
246
|
|
|
247 #if (NGX_STAT_STUB)
|
|
42
|
248 ngx_atomic_dec(ngx_stat_reading);
|
|
0
|
249 #endif
|
|
|
250
|
|
|
251 ngx_http_close_connection(c);
|
|
|
252 return;
|
|
|
253 }
|
|
|
254 }
|
|
|
255
|
|
|
256 r = hc->request;
|
|
|
257
|
|
|
258 if (r) {
|
|
|
259 ngx_memzero(r, sizeof(ngx_http_request_t));
|
|
|
260
|
|
|
261 r->pipeline = hc->pipeline;
|
|
|
262
|
|
|
263 if (hc->nbusy) {
|
|
|
264 r->header_in = hc->busy[0];
|
|
|
265 }
|
|
|
266
|
|
|
267 } else {
|
|
50
|
268 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
|
|
|
269 if (r == NULL) {
|
|
0
|
270
|
|
|
271 #if (NGX_STAT_STUB)
|
|
42
|
272 ngx_atomic_dec(ngx_stat_reading);
|
|
0
|
273 #endif
|
|
|
274
|
|
|
275 ngx_http_close_connection(c);
|
|
|
276 return;
|
|
|
277 }
|
|
|
278
|
|
|
279 hc->request = r;
|
|
|
280 }
|
|
|
281
|
|
|
282 #if (NGX_STAT_STUB)
|
|
42
|
283 ngx_atomic_dec(ngx_stat_reading);
|
|
0
|
284 #endif
|
|
|
285
|
|
|
286 c->data = r;
|
|
|
287 r->http_connection = hc;
|
|
|
288
|
|
|
289 c->sent = 0;
|
|
|
290 r->signature = NGX_HTTP_MODULE;
|
|
|
291
|
|
|
292 /* find the server configuration for the address:port */
|
|
|
293
|
|
|
294 /* AF_INET only */
|
|
|
295
|
|
|
296 in_port = c->servers;
|
|
|
297 in_addr = in_port->addrs.elts;
|
|
|
298
|
|
|
299 r->port = in_port->port;
|
|
|
300 r->port_text = &in_port->port_text;
|
|
|
301
|
|
|
302 i = 0;
|
|
|
303
|
|
|
304 if (in_port->addrs.nelts > 1) {
|
|
|
305
|
|
|
306 /*
|
|
|
307 * There are several addresses on this port and one of them
|
|
|
308 * is the "*:port" wildcard so getsockname() is needed to determine
|
|
|
309 * the server address.
|
|
|
310 *
|
|
|
311 * AcceptEx() already gave this address.
|
|
|
312 */
|
|
|
313
|
|
10
|
314 #if (NGX_WIN32)
|
|
0
|
315 if (c->local_sockaddr) {
|
|
|
316 r->in_addr =
|
|
|
317 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
|
|
|
318
|
|
28
|
319 } else
|
|
0
|
320 #endif
|
|
28
|
321 {
|
|
0
|
322 len = sizeof(struct sockaddr_in);
|
|
28
|
323 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
|
|
0
|
324 ngx_connection_error(c, ngx_socket_errno,
|
|
|
325 "getsockname() failed");
|
|
|
326 ngx_http_close_connection(c);
|
|
|
327 return;
|
|
|
328 }
|
|
|
329
|
|
28
|
330 r->in_addr = sin.sin_addr.s_addr;
|
|
0
|
331 }
|
|
|
332
|
|
|
333 /* the last in_port->addrs address is "*" */
|
|
|
334
|
|
|
335 for ( /* void */ ; i < in_port->addrs.nelts - 1; i++) {
|
|
|
336 if (in_addr[i].addr == r->in_addr) {
|
|
|
337 break;
|
|
|
338 }
|
|
|
339 }
|
|
|
340
|
|
|
341 } else {
|
|
|
342 r->in_addr = in_addr[0].addr;
|
|
|
343 }
|
|
|
344
|
|
26
|
345 r->virtual_names = &in_addr[i];
|
|
0
|
346
|
|
|
347 /* the default server configuration for the address:port */
|
|
|
348 cscf = in_addr[i].core_srv_conf;
|
|
|
349
|
|
|
350 r->main_conf = cscf->ctx->main_conf;
|
|
|
351 r->srv_conf = cscf->ctx->srv_conf;
|
|
|
352 r->loc_conf = cscf->ctx->loc_conf;
|
|
|
353
|
|
58
|
354 rev->handler = ngx_http_process_request_line;
|
|
0
|
355
|
|
|
356 #if (NGX_HTTP_SSL)
|
|
|
357
|
|
|
358 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
|
359 if (sscf->enable) {
|
|
|
360
|
|
|
361 if (c->ssl == NULL) {
|
|
|
362 if (ngx_ssl_create_session(sscf->ssl_ctx, c, NGX_SSL_BUFFER)
|
|
56
|
363 == NGX_ERROR)
|
|
0
|
364 {
|
|
|
365 ngx_http_close_connection(c);
|
|
|
366 return;
|
|
|
367 }
|
|
|
368
|
|
58
|
369 rev->handler = ngx_http_ssl_handshake;
|
|
26
|
370
|
|
0
|
371 /*
|
|
|
372 * The majority of browsers do not send the "close notify" alert.
|
|
|
373 * Among them are MSIE, Mozilla, Netscape 4, Konqueror, and Links.
|
|
54
|
374 * And what is more, MSIE ignores the server's alert.
|
|
0
|
375 *
|
|
|
376 * Opera always sends the alert.
|
|
|
377 */
|
|
|
378
|
|
|
379 c->ssl->no_rcv_shut = 1;
|
|
|
380 }
|
|
|
381
|
|
62
|
382 r->main_filter_need_in_memory = 1;
|
|
0
|
383 }
|
|
|
384
|
|
|
385 #endif
|
|
|
386
|
|
|
387 server_name = cscf->server_names.elts;
|
|
6
|
388 r->server_name = server_name->name;
|
|
0
|
389
|
|
|
390 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
391 c->log->file = clcf->err_log->file;
|
|
|
392 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
393 c->log->log_level = clcf->err_log->log_level;
|
|
|
394 }
|
|
|
395
|
|
|
396 if (c->buffer == NULL) {
|
|
|
397 c->buffer = ngx_create_temp_buf(c->pool,
|
|
|
398 cscf->client_header_buffer_size);
|
|
|
399 if (c->buffer == NULL) {
|
|
|
400 ngx_http_close_connection(c);
|
|
|
401 return;
|
|
|
402 }
|
|
|
403 }
|
|
|
404
|
|
|
405 if (r->header_in == NULL) {
|
|
|
406 r->header_in = c->buffer;
|
|
|
407 }
|
|
|
408
|
|
50
|
409 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
|
|
|
410 if (r->pool == NULL) {
|
|
0
|
411 ngx_http_close_connection(c);
|
|
|
412 return;
|
|
|
413 }
|
|
|
414
|
|
|
415
|
|
|
416 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
|
58
|
417 sizeof(ngx_table_elt_t)) == NGX_ERROR)
|
|
0
|
418 {
|
|
|
419 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
420 ngx_http_close_connection(c);
|
|
|
421 return;
|
|
|
422 }
|
|
|
423
|
|
|
424
|
|
|
425 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
426 if (r->ctx == NULL) {
|
|
|
427 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
428 ngx_http_close_connection(c);
|
|
|
429 return;
|
|
|
430 }
|
|
|
431
|
|
|
432 c->single_connection = 1;
|
|
|
433 r->connection = c;
|
|
|
434
|
|
46
|
435 r->start_time = ngx_time();
|
|
|
436
|
|
0
|
437 r->headers_in.content_length_n = -1;
|
|
|
438 r->headers_in.keep_alive_n = -1;
|
|
|
439 r->headers_out.content_length_n = -1;
|
|
|
440 r->headers_out.last_modified_time = -1;
|
|
|
441
|
|
|
442 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
443
|
|
54
|
444 ctx = c->log->data;
|
|
|
445 ctx->request = r;
|
|
58
|
446 r->log_handler = ngx_http_log_error_handler;
|
|
54
|
447
|
|
0
|
448 #if (NGX_STAT_STUB)
|
|
42
|
449 ngx_atomic_inc(ngx_stat_reading);
|
|
26
|
450 r->stat_reading = 1;
|
|
42
|
451 ngx_atomic_inc(ngx_stat_requests);
|
|
0
|
452 #endif
|
|
|
453
|
|
58
|
454 rev->handler(rev);
|
|
0
|
455 }
|
|
|
456
|
|
|
457
|
|
|
458 #if (NGX_HTTP_SSL)
|
|
|
459
|
|
50
|
460 static void
|
|
|
461 ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
0
|
462 {
|
|
10
|
463 u_char buf[1];
|
|
|
464 ssize_t n;
|
|
0
|
465 ngx_int_t rc;
|
|
|
466 ngx_connection_t *c;
|
|
|
467 ngx_http_request_t *r;
|
|
|
468
|
|
|
469 c = rev->data;
|
|
|
470 r = c->data;
|
|
|
471
|
|
|
472 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
473 "http check ssl handshake");
|
|
|
474
|
|
|
475 if (rev->timedout) {
|
|
54
|
476 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
477 c->timedout = 1;
|
|
|
478 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
479 ngx_http_close_connection(c);
|
|
0
|
480 return;
|
|
|
481 }
|
|
|
482
|
|
|
483 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
|
484
|
|
|
485 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
|
486 return;
|
|
|
487 }
|
|
|
488
|
|
|
489 if (n == 1) {
|
|
|
490 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
491 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
492 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
493
|
|
|
494 c->recv = ngx_ssl_recv;
|
|
88
|
495 c->send = ngx_ssl_write;
|
|
0
|
496 c->send_chain = ngx_ssl_send_chain;
|
|
|
497
|
|
|
498 rc = ngx_ssl_handshake(c);
|
|
|
499
|
|
|
500 if (rc == NGX_ERROR) {
|
|
|
501 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
502 ngx_http_close_connection(r->connection);
|
|
|
503 return;
|
|
|
504 }
|
|
|
505
|
|
|
506 if (rc != NGX_OK) {
|
|
|
507 return;
|
|
|
508 }
|
|
|
509
|
|
|
510 } else {
|
|
|
511 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
512 "plain http");
|
|
|
513
|
|
|
514 r->plain_http = 1;
|
|
|
515 }
|
|
|
516 }
|
|
|
517
|
|
58
|
518 rev->handler = ngx_http_process_request_line;
|
|
0
|
519 ngx_http_process_request_line(rev);
|
|
|
520 }
|
|
|
521
|
|
|
522 #endif
|
|
|
523
|
|
|
524
|
|
50
|
525 static void
|
|
|
526 ngx_http_process_request_line(ngx_event_t *rev)
|
|
0
|
527 {
|
|
|
528 ssize_t n;
|
|
|
529 ngx_int_t rc, rv;
|
|
|
530 ngx_connection_t *c;
|
|
|
531 ngx_http_request_t *r;
|
|
|
532 ngx_http_log_ctx_t *ctx;
|
|
|
533
|
|
|
534 c = rev->data;
|
|
|
535 r = c->data;
|
|
|
536
|
|
|
537 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
538 "http process request line");
|
|
|
539
|
|
|
540 if (rev->timedout) {
|
|
54
|
541 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
542 c->timedout = 1;
|
|
|
543 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
544 ngx_http_close_connection(c);
|
|
0
|
545 return;
|
|
|
546 }
|
|
|
547
|
|
|
548 rc = NGX_AGAIN;
|
|
|
549
|
|
|
550 for ( ;; ) {
|
|
|
551
|
|
|
552 if (rc == NGX_AGAIN) {
|
|
|
553 n = ngx_http_read_request_header(r);
|
|
|
554
|
|
|
555 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
556 return;
|
|
|
557 }
|
|
|
558 }
|
|
|
559
|
|
|
560 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
561
|
|
|
562 if (rc == NGX_OK) {
|
|
|
563
|
|
|
564 /* the request line has been parsed successfully */
|
|
|
565
|
|
10
|
566 r->request_line.len = r->request_end - r->request_start;
|
|
|
567 r->request_line.data = r->request_start;
|
|
|
568
|
|
0
|
569
|
|
|
570 if (r->args_start) {
|
|
|
571 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
572 } else {
|
|
|
573 r->uri.len = r->uri_end - r->uri_start;
|
|
|
574 }
|
|
|
575
|
|
18
|
576
|
|
2
|
577 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
578
|
|
50
|
579 r->uri.data = ngx_palloc(r->pool, r->uri.len + 1);
|
|
|
580 if (r->uri.data == NULL) {
|
|
10
|
581 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
582 ngx_http_close_connection(c);
|
|
|
583 return;
|
|
|
584 }
|
|
|
585
|
|
0
|
586 rc = ngx_http_parse_complex_uri(r);
|
|
|
587
|
|
54
|
588 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
|
589 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
590 "client sent invalid request");
|
|
|
591 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
592 return;
|
|
|
593 }
|
|
|
594
|
|
|
595 } else {
|
|
10
|
596 r->uri.data = r->uri_start;
|
|
0
|
597 }
|
|
|
598
|
|
18
|
599
|
|
10
|
600 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
601 r->unparsed_uri.data = r->uri_start;
|
|
|
602
|
|
0
|
603
|
|
58
|
604 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
605 r->method_name.data = r->request_line.data;
|
|
0
|
606
|
|
10
|
607
|
|
28
|
608 if (r->http_protocol.data) {
|
|
|
609 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
610 }
|
|
|
611
|
|
|
612
|
|
0
|
613 if (r->uri_ext) {
|
|
|
614 if (r->args_start) {
|
|
|
615 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
616 } else {
|
|
|
617 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
618 }
|
|
|
619
|
|
10
|
620 r->exten.data = r->uri_ext;
|
|
0
|
621 }
|
|
|
622
|
|
10
|
623
|
|
0
|
624 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
625 r->args.len = r->uri_end - r->args_start;
|
|
10
|
626 r->args.data = r->args_start;
|
|
0
|
627 }
|
|
|
628
|
|
10
|
629
|
|
|
630 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
631 "http request line: \"%V\"", &r->request_line);
|
|
|
632
|
|
0
|
633 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
634 "http uri: \"%V\"", &r->uri);
|
|
0
|
635
|
|
|
636 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
637 "http args: \"%V\"", &r->args);
|
|
0
|
638
|
|
|
639 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
640 "http exten: \"%V\"", &r->exten);
|
|
|
641
|
|
0
|
642 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
86
|
643
|
|
|
644 if (rev->timer_set) {
|
|
|
645 ngx_del_timer(rev);
|
|
|
646 }
|
|
|
647
|
|
|
648 #if (NGX_STAT_STUB)
|
|
|
649 ngx_atomic_dec(ngx_stat_reading);
|
|
|
650 r->stat_reading = 0;
|
|
|
651 ngx_atomic_inc(ngx_stat_writing);
|
|
|
652 r->stat_writing = 1;
|
|
|
653 #endif
|
|
|
654
|
|
|
655 rev->handler = ngx_http_request_handler;
|
|
|
656 c->write->handler = ngx_http_request_handler;
|
|
58
|
657 r->read_event_handler = ngx_http_block_read;
|
|
86
|
658
|
|
0
|
659 ngx_http_handler(r);
|
|
86
|
660
|
|
0
|
661 return;
|
|
|
662 }
|
|
|
663
|
|
|
664
|
|
|
665 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
|
666 sizeof(ngx_table_elt_t)) == NGX_ERROR)
|
|
|
667 {
|
|
|
668 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
669 ngx_http_close_connection(c);
|
|
|
670 return;
|
|
|
671 }
|
|
|
672
|
|
|
673
|
|
48
|
674 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
|
0
|
675 sizeof(ngx_table_elt_t *)) == NGX_ERROR)
|
|
|
676 {
|
|
|
677 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
678 ngx_http_close_connection(c);
|
|
|
679 return;
|
|
|
680 }
|
|
|
681
|
|
32
|
682 c->log->action = "reading client request headers";
|
|
0
|
683
|
|
58
|
684 rev->handler = ngx_http_process_request_headers;
|
|
0
|
685 ngx_http_process_request_headers(rev);
|
|
|
686
|
|
|
687 return;
|
|
54
|
688 }
|
|
|
689
|
|
|
690 if (rc != NGX_AGAIN) {
|
|
0
|
691
|
|
|
692 /* there was error while a request line parsing */
|
|
|
693
|
|
54
|
694 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
695 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
|
696 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
697 return;
|
|
|
698 }
|
|
|
699
|
|
|
700 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
701
|
|
|
702 if (r->header_in->pos == r->header_in->end) {
|
|
|
703
|
|
|
704 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
705
|
|
|
706 if (rv == NGX_ERROR) {
|
|
|
707 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
708 ngx_http_close_connection(c);
|
|
|
709 return;
|
|
|
710 }
|
|
|
711
|
|
|
712 if (rv == NGX_DECLINED) {
|
|
54
|
713 ctx = c->log->data;
|
|
|
714 ctx->request = r;
|
|
|
715
|
|
|
716 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
717 r->request_line.data = r->request_start;
|
|
|
718
|
|
|
719 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
720 "client sent too long URI");
|
|
|
721 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
0
|
722 return;
|
|
|
723 }
|
|
|
724 }
|
|
|
725 }
|
|
|
726 }
|
|
|
727
|
|
|
728
|
|
50
|
729 static void
|
|
|
730 ngx_http_process_request_headers(ngx_event_t *rev)
|
|
0
|
731 {
|
|
56
|
732 ssize_t n;
|
|
|
733 ngx_int_t rc, rv;
|
|
|
734 ngx_uint_t key;
|
|
|
735 ngx_str_t header;
|
|
58
|
736 ngx_table_elt_t *h;
|
|
56
|
737 ngx_connection_t *c;
|
|
|
738 ngx_http_header_t *hh;
|
|
|
739 ngx_http_request_t *r;
|
|
60
|
740 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
741 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
742
|
|
|
743 c = rev->data;
|
|
|
744 r = c->data;
|
|
|
745
|
|
|
746 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
747 "http process request header line");
|
|
|
748
|
|
|
749 if (rev->timedout) {
|
|
54
|
750 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
751 c->timedout = 1;
|
|
|
752 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
753 ngx_http_close_connection(c);
|
|
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 ngx_http_close_connection(c);
|
|
|
774 return;
|
|
|
775 }
|
|
|
776
|
|
|
777 if (rv == NGX_DECLINED) {
|
|
54
|
778 header.len = r->header_in->end - r->header_name_start;
|
|
|
779 header.data = r->header_name_start;
|
|
80
|
780
|
|
|
781 if (header.len > NGX_MAX_ERROR_STR - 300) {
|
|
|
782 header.len = NGX_MAX_ERROR_STR - 300;
|
|
|
783 header.data[header.len++] = '.';
|
|
|
784 header.data[header.len++] = '.';
|
|
|
785 header.data[header.len++] = '.';
|
|
|
786 }
|
|
|
787
|
|
54
|
788 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
789 "client sent too long header line: \"%V\"",
|
|
|
790 &header);
|
|
|
791 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
792 ngx_http_close_connection(c);
|
|
0
|
793 return;
|
|
|
794 }
|
|
|
795 }
|
|
|
796
|
|
|
797 n = ngx_http_read_request_header(r);
|
|
|
798
|
|
|
799 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
800 return;
|
|
|
801 }
|
|
|
802 }
|
|
|
803
|
|
|
804 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
|
805
|
|
|
806 if (rc == NGX_OK) {
|
|
|
807
|
|
60
|
808 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
|
52
|
809
|
|
|
810 /* there was error while a header line parsing */
|
|
|
811
|
|
|
812 header.len = r->header_end - r->header_name_start;
|
|
|
813 header.data = r->header_name_start;
|
|
|
814
|
|
54
|
815 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
816 "client sent invalid header line: \"%V\"",
|
|
52
|
817 &header);
|
|
|
818 continue;
|
|
|
819 }
|
|
|
820
|
|
0
|
821 /* a header line has been parsed successfully */
|
|
|
822
|
|
50
|
823 h = ngx_list_push(&r->headers_in.headers);
|
|
|
824 if (h == NULL) {
|
|
0
|
825 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
826 ngx_http_close_connection(c);
|
|
|
827 return;
|
|
|
828 }
|
|
|
829
|
|
56
|
830 h->hash = r->header_hash;
|
|
|
831
|
|
0
|
832 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
833 h->key.data = r->header_name_start;
|
|
|
834 h->key.data[h->key.len] = '\0';
|
|
|
835
|
|
|
836 h->value.len = r->header_end - r->header_start;
|
|
|
837 h->value.data = r->header_start;
|
|
|
838 h->value.data[h->value.len] = '\0';
|
|
|
839
|
|
58
|
840 key = h->hash % cmcf->headers_in_hash.hash_size;
|
|
|
841
|
|
|
842 if (hh[key].name.len == h->key.len
|
|
|
843 && ngx_strcasecmp(hh[key].name.data, h->key.data) == 0)
|
|
0
|
844 {
|
|
58
|
845 if (hh[key].handler(r, h, hh[key].offset) != NGX_OK) {
|
|
0
|
846 return;
|
|
|
847 }
|
|
|
848 }
|
|
|
849
|
|
|
850 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
851 "http header: \"%V: %V\"",
|
|
|
852 &h->key, &h->value);
|
|
0
|
853
|
|
|
854 continue;
|
|
54
|
855 }
|
|
|
856
|
|
|
857 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
0
|
858
|
|
|
859 /* a whole header has been parsed successfully */
|
|
|
860
|
|
|
861 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
862 "http header done");
|
|
|
863
|
|
24
|
864 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
865
|
|
0
|
866 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
867
|
|
|
868 rc = ngx_http_process_request_header(r);
|
|
|
869
|
|
|
870 if (rc != NGX_OK) {
|
|
|
871 return;
|
|
|
872 }
|
|
|
873
|
|
|
874 if (rev->timer_set) {
|
|
|
875 ngx_del_timer(rev);
|
|
|
876 }
|
|
|
877
|
|
|
878 #if (NGX_STAT_STUB)
|
|
42
|
879 ngx_atomic_dec(ngx_stat_reading);
|
|
0
|
880 r->stat_reading = 0;
|
|
42
|
881 ngx_atomic_inc(ngx_stat_writing);
|
|
0
|
882 r->stat_writing = 1;
|
|
|
883 #endif
|
|
|
884
|
|
58
|
885 rev->handler = ngx_http_request_handler;
|
|
|
886 c->write->handler = ngx_http_request_handler;
|
|
|
887 r->read_event_handler = ngx_http_block_read;
|
|
|
888
|
|
0
|
889 ngx_http_handler(r);
|
|
86
|
890
|
|
0
|
891 return;
|
|
54
|
892 }
|
|
|
893
|
|
|
894 if (rc == NGX_AGAIN) {
|
|
|
895
|
|
|
896 /* a header line parsing is still not complete */
|
|
|
897
|
|
|
898 continue;
|
|
0
|
899 }
|
|
|
900
|
|
54
|
901 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
|
902
|
|
|
903 header.len = r->header_end - r->header_name_start;
|
|
|
904 header.data = r->header_name_start;
|
|
|
905 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
906 "client sent invalid header line: \"%V\\r...\"",
|
|
|
907 &header);
|
|
|
908 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
909 ngx_http_close_connection(c);
|
|
|
910 return;
|
|
0
|
911 }
|
|
|
912 }
|
|
|
913
|
|
|
914
|
|
50
|
915 static ssize_t
|
|
|
916 ngx_http_read_request_header(ngx_http_request_t *r)
|
|
0
|
917 {
|
|
|
918 ssize_t n;
|
|
|
919 ngx_event_t *rev;
|
|
|
920 ngx_http_core_srv_conf_t *cscf;
|
|
|
921
|
|
|
922 rev = r->connection->read;
|
|
|
923
|
|
|
924 n = r->header_in->last - r->header_in->pos;
|
|
|
925
|
|
|
926 if (n > 0) {
|
|
|
927 return n;
|
|
|
928 }
|
|
|
929
|
|
72
|
930 if (rev->ready) {
|
|
|
931 n = r->connection->recv(r->connection, r->header_in->last,
|
|
|
932 r->header_in->end - r->header_in->last);
|
|
|
933 } else {
|
|
|
934 n = NGX_AGAIN;
|
|
0
|
935 }
|
|
|
936
|
|
|
937 if (n == NGX_AGAIN) {
|
|
|
938 if (!r->header_timeout_set) {
|
|
|
939 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
940 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
941 r->header_timeout_set = 1;
|
|
|
942 }
|
|
|
943
|
|
|
944 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
945 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
946 ngx_http_close_connection(r->connection);
|
|
|
947 return NGX_ERROR;
|
|
|
948 }
|
|
|
949
|
|
|
950 return NGX_AGAIN;
|
|
|
951 }
|
|
|
952
|
|
|
953 if (n == 0) {
|
|
|
954 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
955 "client closed prematurely connection");
|
|
|
956 }
|
|
|
957
|
|
|
958 if (n == 0 || n == NGX_ERROR) {
|
|
|
959 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
960 ngx_http_close_connection(r->connection);
|
|
|
961 return NGX_ERROR;
|
|
|
962 }
|
|
|
963
|
|
|
964 r->header_in->last += n;
|
|
|
965
|
|
|
966 return n;
|
|
|
967 }
|
|
|
968
|
|
|
969
|
|
50
|
970 static ngx_int_t
|
|
|
971 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
972 ngx_uint_t request_line)
|
|
0
|
973 {
|
|
|
974 u_char *old, *new;
|
|
|
975 ngx_buf_t *b;
|
|
|
976 ngx_http_connection_t *hc;
|
|
|
977 ngx_http_core_srv_conf_t *cscf;
|
|
|
978
|
|
|
979 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
980 "http alloc large header buffer");
|
|
|
981
|
|
|
982 if (request_line && r->state == 0) {
|
|
|
983
|
|
|
984 /* the client fills up the buffer with "\r\n" */
|
|
|
985
|
|
24
|
986 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
987
|
|
0
|
988 r->header_in->pos = r->header_in->start;
|
|
|
989 r->header_in->last = r->header_in->start;
|
|
|
990
|
|
|
991 return NGX_OK;
|
|
|
992 }
|
|
|
993
|
|
|
994 old = request_line ? r->request_start : r->header_name_start;
|
|
|
995
|
|
|
996 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
997
|
|
|
998 if (r->state != 0
|
|
|
999 && (size_t) (r->header_in->pos - old)
|
|
|
1000 >= cscf->large_client_header_buffers.size)
|
|
|
1001 {
|
|
|
1002 return NGX_DECLINED;
|
|
|
1003 }
|
|
|
1004
|
|
|
1005 hc = r->http_connection;
|
|
|
1006
|
|
|
1007 if (hc->nfree) {
|
|
|
1008 b = hc->free[--hc->nfree];
|
|
|
1009
|
|
|
1010 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1011 "http large header free: %p %uz",
|
|
0
|
1012 b->pos, b->end - b->last);
|
|
|
1013
|
|
|
1014 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
1015
|
|
|
1016 if (hc->busy == NULL) {
|
|
|
1017 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
1018 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1019 if (hc->busy == NULL) {
|
|
|
1020 return NGX_ERROR;
|
|
|
1021 }
|
|
|
1022 }
|
|
|
1023
|
|
|
1024 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
1025 cscf->large_client_header_buffers.size);
|
|
|
1026 if (b == NULL) {
|
|
|
1027 return NGX_ERROR;
|
|
|
1028 }
|
|
|
1029
|
|
|
1030 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1031 "http large header alloc: %p %uz",
|
|
0
|
1032 b->pos, b->end - b->last);
|
|
|
1033
|
|
|
1034 } else {
|
|
|
1035 return NGX_DECLINED;
|
|
|
1036 }
|
|
|
1037
|
|
|
1038 hc->busy[hc->nbusy++] = b;
|
|
|
1039
|
|
|
1040 if (r->state == 0) {
|
|
|
1041 /*
|
|
|
1042 * r->state == 0 means that a header line was parsed successfully
|
|
|
1043 * and we do not need to copy incomplete header line and
|
|
|
1044 * to relocate the parser header pointers
|
|
|
1045 */
|
|
|
1046
|
|
24
|
1047 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1048
|
|
0
|
1049 r->header_in = b;
|
|
|
1050
|
|
|
1051 return NGX_OK;
|
|
|
1052 }
|
|
|
1053
|
|
|
1054 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1055 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1056
|
|
24
|
1057 r->request_length += old - r->header_in->start;
|
|
|
1058
|
|
0
|
1059 new = b->start;
|
|
|
1060
|
|
|
1061 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1062
|
|
|
1063 b->pos = new + (r->header_in->pos - old);
|
|
|
1064 b->last = new + (r->header_in->pos - old);
|
|
|
1065
|
|
|
1066 if (request_line) {
|
|
|
1067 r->request_start = new;
|
|
|
1068
|
|
|
1069 if (r->request_end) {
|
|
|
1070 r->request_end = new + (r->request_end - old);
|
|
|
1071 }
|
|
|
1072
|
|
|
1073 r->method_end = new + (r->method_end - old);
|
|
|
1074
|
|
|
1075 r->uri_start = new + (r->uri_start - old);
|
|
|
1076 r->uri_end = new + (r->uri_end - old);
|
|
|
1077
|
|
|
1078 if (r->schema_start) {
|
|
|
1079 r->schema_start = new + (r->schema_start - old);
|
|
|
1080 r->schema_end = new + (r->schema_end - old);
|
|
|
1081 }
|
|
|
1082
|
|
|
1083 if (r->host_start) {
|
|
|
1084 r->host_start = new + (r->host_start - old);
|
|
|
1085 r->host_end = new + (r->host_end - old);
|
|
|
1086 }
|
|
|
1087
|
|
|
1088 if (r->port_start) {
|
|
|
1089 r->port_start = new + (r->port_start - old);
|
|
|
1090 r->port_end = new + (r->port_end - old);
|
|
|
1091 }
|
|
|
1092
|
|
|
1093 if (r->uri_ext) {
|
|
|
1094 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1095 }
|
|
|
1096
|
|
|
1097 if (r->args_start) {
|
|
|
1098 r->args_start = new + (r->args_start - old);
|
|
|
1099 }
|
|
|
1100
|
|
|
1101 } else {
|
|
|
1102 r->header_name_start = new;
|
|
|
1103 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1104 r->header_start = new + (r->header_start - old);
|
|
|
1105 r->header_end = new + (r->header_end - old);
|
|
|
1106 }
|
|
|
1107
|
|
|
1108 r->header_in = b;
|
|
|
1109
|
|
|
1110 return NGX_OK;
|
|
|
1111 }
|
|
|
1112
|
|
|
1113
|
|
50
|
1114 static ngx_int_t
|
|
58
|
1115 ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1116 ngx_uint_t offset)
|
|
|
1117 {
|
|
|
1118 ngx_table_elt_t **ph;
|
|
|
1119
|
|
|
1120 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1121
|
|
|
1122 if (*ph == NULL) {
|
|
|
1123 *ph = h;
|
|
|
1124 }
|
|
|
1125
|
|
|
1126 return NGX_OK;
|
|
|
1127 }
|
|
|
1128
|
|
|
1129
|
|
|
1130 static ngx_int_t
|
|
72
|
1131 ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1132 ngx_uint_t offset)
|
|
|
1133 {
|
|
|
1134 ngx_table_elt_t **ph;
|
|
|
1135
|
|
|
1136 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1137
|
|
|
1138 if (*ph == NULL) {
|
|
|
1139 *ph = h;
|
|
|
1140 return NGX_OK;
|
|
|
1141 }
|
|
|
1142
|
|
|
1143 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1144 "client sent duplicate header line: \"%V: %V\"",
|
|
|
1145 &h->key, &h->value);
|
|
|
1146
|
|
|
1147 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1148
|
|
|
1149 return NGX_ERROR;
|
|
|
1150 }
|
|
|
1151
|
|
|
1152
|
|
|
1153 static ngx_int_t
|
|
58
|
1154 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1155 ngx_uint_t offset)
|
|
|
1156 {
|
|
|
1157 ngx_table_elt_t **cookie;
|
|
|
1158
|
|
|
1159 cookie = ngx_array_push(&r->headers_in.cookies);
|
|
72
|
1160 if (cookie) {
|
|
|
1161 *cookie = h;
|
|
|
1162 return NGX_OK;
|
|
58
|
1163 }
|
|
|
1164
|
|
72
|
1165 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1166 ngx_http_close_connection(r->connection);
|
|
|
1167
|
|
|
1168 return NGX_ERROR;
|
|
58
|
1169 }
|
|
|
1170
|
|
|
1171
|
|
|
1172 static ngx_int_t
|
|
50
|
1173 ngx_http_process_request_header(ngx_http_request_t *r)
|
|
0
|
1174 {
|
|
54
|
1175 size_t len;
|
|
|
1176 u_char *ua, *user_agent, ch;
|
|
|
1177 ngx_http_core_srv_conf_t *cscf;
|
|
0
|
1178
|
|
|
1179 if (r->headers_in.host) {
|
|
|
1180 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
|
26
|
1181 ch = r->headers_in.host->value.data[len];
|
|
|
1182
|
|
|
1183 if (ch == ':') {
|
|
0
|
1184 break;
|
|
|
1185 }
|
|
26
|
1186
|
|
|
1187 r->headers_in.host->value.data[len] = ngx_tolower(ch);
|
|
0
|
1188 }
|
|
54
|
1189
|
|
58
|
1190 if (r->headers_in.host->value.data[len - 1] == '.') {
|
|
|
1191 len--;
|
|
|
1192 }
|
|
|
1193
|
|
0
|
1194 r->headers_in.host_name_len = len;
|
|
|
1195
|
|
26
|
1196 if (ngx_http_find_virtual_server(r) != NGX_OK) {
|
|
54
|
1197 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1198 "client sent invalid \"Host\" header");
|
|
|
1199
|
|
|
1200 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1201
|
|
|
1202 if (cscf->restrict_host_names == NGX_HTTP_RESTRICT_HOST_CLOSE) {
|
|
|
1203 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1204 ngx_http_close_connection(r->connection);
|
|
|
1205 return NGX_ERROR;
|
|
|
1206 }
|
|
|
1207
|
|
|
1208 ngx_http_finalize_request(r, NGX_HTTP_INVALID_HOST);
|
|
|
1209 return NGX_ERROR;
|
|
0
|
1210 }
|
|
|
1211
|
|
|
1212 } else {
|
|
|
1213 if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
54
|
1214 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1215 "client sent HTTP/1.1 request without \"Host\" header");
|
|
|
1216 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1217 return NGX_ERROR;
|
|
0
|
1218 }
|
|
54
|
1219
|
|
0
|
1220 r->headers_in.host_name_len = 0;
|
|
|
1221 }
|
|
|
1222
|
|
|
1223 if (r->headers_in.content_length) {
|
|
|
1224 r->headers_in.content_length_n =
|
|
50
|
1225 ngx_atosz(r->headers_in.content_length->value.data,
|
|
0
|
1226 r->headers_in.content_length->value.len);
|
|
|
1227
|
|
|
1228 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
54
|
1229 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1230 "client sent invalid \"Content-Length\" header");
|
|
|
1231 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1232 return NGX_ERROR;
|
|
0
|
1233 }
|
|
|
1234 }
|
|
|
1235
|
|
32
|
1236 if (r->method == NGX_HTTP_POST && r->headers_in.content_length_n == -1) {
|
|
54
|
1237 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1238 "client sent POST method without \"Content-Length\" header");
|
|
|
1239 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1240 return NGX_ERROR;
|
|
0
|
1241 }
|
|
|
1242
|
|
|
1243 if (r->plain_http) {
|
|
54
|
1244 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1245 "client sent plain HTTP request to HTTPS port");
|
|
|
1246 ngx_http_finalize_request(r, NGX_HTTP_TO_HTTPS);
|
|
|
1247 return NGX_ERROR;
|
|
0
|
1248 }
|
|
|
1249
|
|
|
1250 if (r->headers_in.connection) {
|
|
|
1251 if (r->headers_in.connection->value.len == 5
|
|
|
1252 && ngx_strcasecmp(r->headers_in.connection->value.data, "close")
|
|
58
|
1253 == 0)
|
|
0
|
1254 {
|
|
|
1255 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1256
|
|
|
1257 } else if (r->headers_in.connection->value.len == 10
|
|
|
1258 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
58
|
1259 "keep-alive") == 0)
|
|
0
|
1260 {
|
|
|
1261 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1262
|
|
|
1263 if (r->headers_in.keep_alive) {
|
|
|
1264 r->headers_in.keep_alive_n =
|
|
50
|
1265 ngx_atotm(r->headers_in.keep_alive->value.data,
|
|
0
|
1266 r->headers_in.keep_alive->value.len);
|
|
|
1267 }
|
|
|
1268 }
|
|
|
1269 }
|
|
|
1270
|
|
|
1271 if (r->headers_in.user_agent) {
|
|
|
1272
|
|
|
1273 /*
|
|
|
1274 * check some widespread browsers while the headers are still
|
|
|
1275 * in CPU cache
|
|
|
1276 */
|
|
|
1277
|
|
|
1278 user_agent = r->headers_in.user_agent->value.data;
|
|
|
1279
|
|
|
1280 ua = (u_char *) ngx_strstr(user_agent, "MSIE");
|
|
|
1281
|
|
|
1282 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
|
1283
|
|
|
1284 r->headers_in.msie = 1;
|
|
|
1285
|
|
|
1286 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
|
1287 r->headers_in.msie4 = 1;
|
|
|
1288 }
|
|
|
1289
|
|
|
1290 #if 0
|
|
|
1291 /* MSIE ignores the SSL "close notify" alert */
|
|
22
|
1292 if (c->ssl) {
|
|
|
1293 r->connection->ssl->no_send_shut = 1;
|
|
|
1294 }
|
|
0
|
1295 #endif
|
|
|
1296 }
|
|
|
1297
|
|
|
1298 if (ngx_strstr(user_agent, "Opera")) {
|
|
|
1299 r->headers_in.opera = 1;
|
|
|
1300 r->headers_in.msie = 0;
|
|
|
1301 r->headers_in.msie4 = 0;
|
|
|
1302 }
|
|
|
1303
|
|
|
1304 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1305
|
|
|
1306 if (ngx_strstr(user_agent, "Gecko/")) {
|
|
|
1307 r->headers_in.gecko = 1;
|
|
|
1308
|
|
|
1309 } else if (ngx_strstr(user_agent, "Konqueror")) {
|
|
|
1310 r->headers_in.konqueror = 1;
|
|
|
1311 }
|
|
|
1312 }
|
|
|
1313 }
|
|
|
1314
|
|
|
1315 return NGX_OK;
|
|
|
1316 }
|
|
|
1317
|
|
|
1318
|
|
50
|
1319 static ngx_int_t
|
|
|
1320 ngx_http_find_virtual_server(ngx_http_request_t *r)
|
|
26
|
1321 {
|
|
|
1322 ngx_int_t rc;
|
|
58
|
1323 ngx_uint_t i, n, key;
|
|
26
|
1324 ngx_http_server_name_t *name;
|
|
56
|
1325 ngx_http_core_loc_conf_t *clcf;
|
|
26
|
1326 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
1327 ngx_http_core_main_conf_t *cmcf;
|
|
26
|
1328
|
|
|
1329 if (r->virtual_names->hash) {
|
|
|
1330 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
1331
|
|
|
1332 ngx_http_server_names_hash_key(key,
|
|
|
1333 r->headers_in.host->value.data,
|
|
|
1334 r->headers_in.host_name_len,
|
|
|
1335 cmcf->server_names_hash);
|
|
|
1336
|
|
|
1337 name = r->virtual_names->hash[key].elts;
|
|
|
1338 n = r->virtual_names->hash[key].nelts;
|
|
|
1339
|
|
|
1340 } else {
|
|
|
1341 name = r->virtual_names->names.elts;
|
|
|
1342 n = r->virtual_names->names.nelts;
|
|
|
1343 }
|
|
|
1344
|
|
|
1345 for (i = 0; i < n; i++) {
|
|
|
1346
|
|
|
1347 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1348 "server name: %V", &name[i].name);
|
|
|
1349
|
|
|
1350 if (r->headers_in.host_name_len != name[i].name.len) {
|
|
|
1351 continue;
|
|
|
1352 }
|
|
|
1353
|
|
|
1354 rc = ngx_strncmp(r->headers_in.host->value.data,
|
|
|
1355 name[i].name.data, name[i].name.len);
|
|
|
1356
|
|
|
1357 if (rc == 0) {
|
|
|
1358 r->server_name = name[i].name;
|
|
58
|
1359 goto found;
|
|
26
|
1360 }
|
|
|
1361
|
|
|
1362 if (rc < 0) {
|
|
|
1363 /* the server names are lexicographically sorted */
|
|
|
1364 break;
|
|
|
1365 }
|
|
|
1366 }
|
|
|
1367
|
|
58
|
1368 if (r->virtual_names->wildcards.nelts) {
|
|
26
|
1369
|
|
|
1370 name = r->virtual_names->wildcards.elts;
|
|
|
1371 for (i = 0; i < r->virtual_names->wildcards.nelts; i++) {
|
|
|
1372
|
|
|
1373 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1374 "server name: %V", &name[i].name);
|
|
|
1375
|
|
|
1376 if (r->headers_in.host_name_len <= name[i].name.len) {
|
|
|
1377 continue;
|
|
|
1378 }
|
|
|
1379
|
|
|
1380 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1381 "server name: %s",
|
|
|
1382 r->headers_in.host->value.data
|
|
|
1383 + (r->headers_in.host_name_len - name[i].name.len));
|
|
|
1384
|
|
|
1385 if (ngx_strncmp(r->headers_in.host->value.data
|
|
|
1386 + (r->headers_in.host_name_len - name[i].name.len),
|
|
|
1387 name[i].name.data, name[i].name.len) == 0)
|
|
|
1388 {
|
|
|
1389 r->server_name.len = r->headers_in.host_name_len;
|
|
|
1390 r->server_name.data = r->headers_in.host->value.data;
|
|
|
1391
|
|
58
|
1392 goto found;
|
|
26
|
1393 }
|
|
|
1394 }
|
|
|
1395 }
|
|
|
1396
|
|
58
|
1397 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1398
|
|
|
1399 if (cscf->restrict_host_names == NGX_HTTP_RESTRICT_HOST_OFF) {
|
|
26
|
1400 return NGX_OK;
|
|
|
1401 }
|
|
|
1402
|
|
58
|
1403 return NGX_ERROR;
|
|
|
1404
|
|
|
1405 found:
|
|
|
1406
|
|
|
1407 r->srv_conf = name[i].core_srv_conf->ctx->srv_conf;
|
|
|
1408 r->loc_conf = name[i].core_srv_conf->ctx->loc_conf;
|
|
|
1409
|
|
|
1410 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1411 r->connection->log->file = clcf->err_log->file;
|
|
|
1412
|
|
|
1413 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
1414 r->connection->log->log_level = clcf->err_log->log_level;
|
|
26
|
1415 }
|
|
|
1416
|
|
|
1417 return NGX_OK;
|
|
|
1418 }
|
|
|
1419
|
|
|
1420
|
|
58
|
1421 static void
|
|
|
1422 ngx_http_request_handler(ngx_event_t *ev)
|
|
|
1423 {
|
|
|
1424 ngx_connection_t *c;
|
|
|
1425 ngx_http_request_t *r;
|
|
|
1426
|
|
|
1427 c = ev->data;
|
|
|
1428 r = c->data;
|
|
|
1429
|
|
|
1430 if (ev->write) {
|
|
|
1431 r->write_event_handler(r);
|
|
|
1432
|
|
|
1433 } else {
|
|
|
1434 r->read_event_handler(r);
|
|
|
1435 }
|
|
|
1436 }
|
|
|
1437
|
|
|
1438
|
|
50
|
1439 void
|
|
58
|
1440 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
1441 {
|
|
58
|
1442 ngx_http_request_t *pr;
|
|
0
|
1443 ngx_http_core_loc_conf_t *clcf;
|
|
|
1444
|
|
58
|
1445 if (rc == NGX_DONE) {
|
|
|
1446 /* r may be already destroyed when rc == NGX_DONE */
|
|
|
1447 return;
|
|
|
1448 }
|
|
|
1449
|
|
|
1450 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1451 "http finalize request: %d, \"%V\"", rc, &r->uri);
|
|
|
1452
|
|
60
|
1453 if (r->parent
|
|
|
1454 && (rc >= NGX_HTTP_SPECIAL_RESPONSE || rc == NGX_HTTP_NO_CONTENT))
|
|
|
1455 {
|
|
58
|
1456 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
0
|
1457 return;
|
|
|
1458 }
|
|
|
1459
|
|
58
|
1460 if (r->parent || rc == NGX_AGAIN) {
|
|
74
|
1461 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
|
1462 return;
|
|
|
1463 }
|
|
58
|
1464 }
|
|
|
1465
|
|
|
1466 r->done = 1;
|
|
|
1467
|
|
|
1468 if (r != r->connection->data) {
|
|
76
|
1469 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1470 "http finalize non-active request: \"%V\"", &r->uri);
|
|
58
|
1471 return;
|
|
|
1472 }
|
|
|
1473
|
|
|
1474 if (r->parent) {
|
|
|
1475
|
|
|
1476 pr = r->parent;
|
|
|
1477
|
|
76
|
1478 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1479 "http parent request: \"%V\"", &pr->uri);
|
|
|
1480
|
|
58
|
1481 if (rc != NGX_AGAIN) {
|
|
|
1482 pr->connection->data = pr;
|
|
|
1483 }
|
|
|
1484
|
|
|
1485 if (pr->postponed) {
|
|
|
1486
|
|
76
|
1487 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1488 "http request: \"%V\" has postponed", &pr->uri);
|
|
|
1489
|
|
58
|
1490 if (rc != NGX_AGAIN && pr->postponed->request == r) {
|
|
|
1491 pr->postponed = pr->postponed->next;
|
|
|
1492
|
|
|
1493 if (pr->postponed == NULL) {
|
|
|
1494 return;
|
|
|
1495 }
|
|
|
1496 }
|
|
|
1497
|
|
76
|
1498 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1499 "http request: \"%V\" still has postponed",
|
|
|
1500 &pr->uri);
|
|
|
1501
|
|
58
|
1502 if (pr->done) {
|
|
|
1503 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
76
|
1504 "http wake parent request: \"%V\"", &pr->uri);
|
|
58
|
1505
|
|
|
1506 pr->write_event_handler(pr);
|
|
|
1507 }
|
|
|
1508 }
|
|
|
1509
|
|
|
1510 return;
|
|
|
1511 }
|
|
0
|
1512
|
|
60
|
1513 if (rc >= NGX_HTTP_SPECIAL_RESPONSE || rc == NGX_HTTP_NO_CONTENT) {
|
|
0
|
1514
|
|
|
1515 if (r->connection->read->timer_set) {
|
|
|
1516 ngx_del_timer(r->connection->read);
|
|
|
1517 }
|
|
|
1518
|
|
|
1519 if (r->connection->write->timer_set) {
|
|
|
1520 ngx_del_timer(r->connection->write);
|
|
|
1521 }
|
|
|
1522
|
|
76
|
1523 if (r->connection->closed) {
|
|
0
|
1524 ngx_http_close_request(r, 0);
|
|
|
1525 ngx_http_close_connection(r->connection);
|
|
|
1526 return;
|
|
|
1527 }
|
|
|
1528
|
|
|
1529 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1530
|
|
|
1531 return;
|
|
76
|
1532 }
|
|
|
1533
|
|
|
1534 if (rc == NGX_ERROR || r->connection->closed) {
|
|
0
|
1535 ngx_http_close_request(r, 0);
|
|
|
1536 ngx_http_close_connection(r->connection);
|
|
|
1537 return;
|
|
76
|
1538 }
|
|
|
1539
|
|
|
1540 if (rc == NGX_AGAIN || r->out) {
|
|
74
|
1541 (void) ngx_http_set_write_handler(r);
|
|
0
|
1542 return;
|
|
|
1543 }
|
|
|
1544
|
|
|
1545 if (r->connection->read->timer_set) {
|
|
|
1546 ngx_del_timer(r->connection->read);
|
|
|
1547 }
|
|
|
1548
|
|
|
1549 if (r->connection->write->timer_set) {
|
|
|
1550 r->connection->write->delayed = 0;
|
|
|
1551 ngx_del_timer(r->connection->write);
|
|
|
1552 }
|
|
|
1553
|
|
|
1554 if (r->connection->read->pending_eof) {
|
|
22
|
1555 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1556 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log,
|
|
|
1557 r->connection->read->kq_errno,
|
|
|
1558 "kevent() reported about an closed connection");
|
|
|
1559 #endif
|
|
|
1560 ngx_http_close_request(r, 0);
|
|
|
1561 ngx_http_close_connection(r->connection);
|
|
|
1562 return;
|
|
|
1563 }
|
|
|
1564
|
|
|
1565 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1566
|
|
|
1567 if (!ngx_terminate
|
|
|
1568 && !ngx_exiting
|
|
|
1569 && r->keepalive != 0
|
|
|
1570 && clcf->keepalive_timeout > 0)
|
|
|
1571 {
|
|
|
1572 ngx_http_set_keepalive(r);
|
|
|
1573 return;
|
|
|
1574
|
|
|
1575 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
1576 ngx_http_set_lingering_close(r);
|
|
|
1577 return;
|
|
|
1578 }
|
|
|
1579
|
|
|
1580 ngx_http_close_request(r, 0);
|
|
|
1581 ngx_http_close_connection(r->connection);
|
|
|
1582 }
|
|
|
1583
|
|
|
1584
|
|
74
|
1585 static ngx_int_t
|
|
50
|
1586 ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
0
|
1587 {
|
|
|
1588 ngx_event_t *wev;
|
|
|
1589 ngx_http_core_loc_conf_t *clcf;
|
|
|
1590
|
|
58
|
1591 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
1592
|
|
74
|
1593 r->write_event_handler = ngx_http_writer;
|
|
|
1594
|
|
76
|
1595 if (r->connection->closed) {
|
|
|
1596 return NGX_OK;
|
|
|
1597 }
|
|
|
1598
|
|
0
|
1599 wev = r->connection->write;
|
|
|
1600
|
|
|
1601 if (wev->ready && wev->delayed) {
|
|
74
|
1602 return NGX_OK;
|
|
0
|
1603 }
|
|
|
1604
|
|
58
|
1605 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1606 if (!wev->delayed) {
|
|
|
1607 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1608 }
|
|
|
1609
|
|
2
|
1610 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1611 ngx_http_close_request(r, 0);
|
|
|
1612 ngx_http_close_connection(r->connection);
|
|
74
|
1613 return NGX_ERROR;
|
|
0
|
1614 }
|
|
74
|
1615
|
|
|
1616 return NGX_OK;
|
|
0
|
1617 }
|
|
|
1618
|
|
|
1619
|
|
58
|
1620 static void
|
|
|
1621 ngx_http_writer(ngx_http_request_t *r)
|
|
0
|
1622 {
|
|
|
1623 int rc;
|
|
58
|
1624 ngx_event_t *wev;
|
|
0
|
1625 ngx_connection_t *c;
|
|
|
1626 ngx_http_core_loc_conf_t *clcf;
|
|
|
1627
|
|
58
|
1628 c = r->connection;
|
|
|
1629 wev = c->write;
|
|
|
1630
|
|
|
1631 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1632 "http writer handler: \"%V\"", &r->uri);
|
|
0
|
1633
|
|
|
1634 if (wev->timedout) {
|
|
|
1635 if (!wev->delayed) {
|
|
54
|
1636 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
|
1637 "client timed out");
|
|
|
1638 c->timedout = 1;
|
|
|
1639 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
1640 ngx_http_close_connection(c);
|
|
0
|
1641 return;
|
|
|
1642 }
|
|
|
1643
|
|
|
1644 wev->timedout = 0;
|
|
|
1645 wev->delayed = 0;
|
|
|
1646
|
|
|
1647 if (!wev->ready) {
|
|
|
1648 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1649 ngx_http_core_module);
|
|
|
1650 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1651
|
|
2
|
1652 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1653 ngx_http_close_request(r, 0);
|
|
|
1654 ngx_http_close_connection(r->connection);
|
|
|
1655 }
|
|
|
1656
|
|
|
1657 return;
|
|
|
1658 }
|
|
|
1659
|
|
|
1660 } else {
|
|
|
1661 if (wev->delayed) {
|
|
|
1662 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1663 "http writer delayed");
|
|
|
1664
|
|
|
1665 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1666 ngx_http_core_module);
|
|
2
|
1667
|
|
|
1668 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1669 ngx_http_close_request(r, 0);
|
|
|
1670 ngx_http_close_connection(r->connection);
|
|
|
1671 }
|
|
|
1672
|
|
|
1673 return;
|
|
|
1674 }
|
|
|
1675 }
|
|
|
1676
|
|
58
|
1677 if (r->postponed) {
|
|
|
1678 rc = ngx_http_postponed_handler(r);
|
|
|
1679
|
|
|
1680 if (rc == NGX_DONE) {
|
|
|
1681 /* r may be already destroyed when rc == NGX_DONE */
|
|
|
1682 return;
|
|
|
1683 }
|
|
|
1684
|
|
|
1685 } else {
|
|
|
1686 rc = ngx_http_output_filter(r, NULL);
|
|
|
1687
|
|
|
1688 }
|
|
|
1689
|
|
|
1690 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1691 "http writer output filter: %d, \"%V\"", rc, &r->uri);
|
|
0
|
1692
|
|
|
1693 if (rc == NGX_AGAIN) {
|
|
|
1694 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1695 ngx_http_core_module);
|
|
|
1696 if (!wev->ready && !wev->delayed) {
|
|
|
1697 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1698 }
|
|
|
1699
|
|
2
|
1700 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1701 ngx_http_close_request(r, 0);
|
|
|
1702 ngx_http_close_connection(r->connection);
|
|
|
1703 }
|
|
|
1704
|
|
|
1705 return;
|
|
|
1706 }
|
|
|
1707
|
|
58
|
1708 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1709 "http writer done: \"%V\"", &r->uri);
|
|
0
|
1710
|
|
|
1711 ngx_http_finalize_request(r, rc);
|
|
|
1712 }
|
|
|
1713
|
|
|
1714
|
|
58
|
1715 static ngx_int_t
|
|
|
1716 ngx_http_postponed_handler(ngx_http_request_t *r)
|
|
|
1717 {
|
|
|
1718 ngx_int_t rc;
|
|
|
1719 ngx_http_postponed_request_t *pr;
|
|
|
1720
|
|
|
1721 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1722 "http postpone handler \"%V\"", &r->uri);
|
|
|
1723
|
|
|
1724 pr = r->postponed;
|
|
|
1725
|
|
|
1726 if (pr->request == NULL) {
|
|
|
1727 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1728 "http postponed data \"%V\" %p", &r->uri, pr->out);
|
|
|
1729
|
|
|
1730 rc = ngx_http_output_filter(r, NULL);
|
|
|
1731
|
|
|
1732 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
76
|
1733 "http postponed output filter: %d", rc);
|
|
58
|
1734
|
|
|
1735 if (rc == NGX_AGAIN) {
|
|
|
1736 return rc;
|
|
|
1737 }
|
|
|
1738
|
|
76
|
1739 /*
|
|
|
1740 * we treat NGX_ERROR as NGX_OK, because we need to complete
|
|
|
1741 * all postponed requests
|
|
|
1742 */
|
|
58
|
1743
|
|
|
1744 pr = r->postponed;
|
|
|
1745
|
|
|
1746 if (pr == NULL) {
|
|
|
1747 return NGX_OK;
|
|
|
1748 }
|
|
|
1749 }
|
|
|
1750
|
|
|
1751 r = pr->request;
|
|
|
1752 r->connection->data = r;
|
|
|
1753
|
|
|
1754 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
76
|
1755 "http wake child request \"%V\"", &r->uri);
|
|
58
|
1756
|
|
|
1757 r->write_event_handler(r);
|
|
|
1758
|
|
|
1759 return NGX_DONE;
|
|
|
1760 }
|
|
|
1761
|
|
|
1762
|
|
50
|
1763 static void
|
|
58
|
1764 ngx_http_block_read(ngx_http_request_t *r)
|
|
0
|
1765 {
|
|
58
|
1766 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1767 "http read blocked");
|
|
0
|
1768
|
|
|
1769 /* aio does not call this handler */
|
|
|
1770
|
|
58
|
1771 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT)
|
|
|
1772 && r->connection->read->active)
|
|
|
1773 {
|
|
|
1774 if (ngx_del_event(r->connection->read, NGX_READ_EVENT, 0)
|
|
|
1775 == NGX_ERROR)
|
|
|
1776 {
|
|
0
|
1777 ngx_http_close_request(r, 0);
|
|
58
|
1778 ngx_http_close_connection(r->connection);
|
|
0
|
1779 }
|
|
|
1780 }
|
|
|
1781 }
|
|
|
1782
|
|
|
1783
|
|
50
|
1784 ngx_int_t
|
|
|
1785 ngx_http_discard_body(ngx_http_request_t *r)
|
|
0
|
1786 {
|
|
|
1787 ssize_t size;
|
|
|
1788 ngx_event_t *rev;
|
|
|
1789
|
|
70
|
1790 if (r->main) {
|
|
|
1791 return NGX_OK;
|
|
|
1792 }
|
|
|
1793
|
|
0
|
1794 rev = r->connection->read;
|
|
|
1795
|
|
|
1796 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http set discard body");
|
|
|
1797
|
|
|
1798 if (rev->timer_set) {
|
|
|
1799 ngx_del_timer(rev);
|
|
|
1800 }
|
|
|
1801
|
|
|
1802 if (r->headers_in.content_length_n <= 0) {
|
|
|
1803 return NGX_OK;
|
|
|
1804 }
|
|
|
1805
|
|
86
|
1806 r->discard_body = 1;
|
|
|
1807
|
|
0
|
1808 size = r->header_in->last - r->header_in->pos;
|
|
|
1809
|
|
|
1810 if (size) {
|
|
|
1811 if (r->headers_in.content_length_n > size) {
|
|
|
1812 r->headers_in.content_length_n -= size;
|
|
|
1813
|
|
|
1814 } else {
|
|
|
1815 r->header_in->pos += r->headers_in.content_length_n;
|
|
|
1816 r->headers_in.content_length_n = 0;
|
|
|
1817 return NGX_OK;
|
|
|
1818 }
|
|
|
1819 }
|
|
|
1820
|
|
58
|
1821 r->read_event_handler = ngx_http_read_discarded_body_handler;
|
|
|
1822
|
|
|
1823 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
1824 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1825 }
|
|
|
1826
|
|
|
1827 return ngx_http_read_discarded_body(r);
|
|
|
1828 }
|
|
|
1829
|
|
|
1830
|
|
50
|
1831 static void
|
|
58
|
1832 ngx_http_read_discarded_body_handler(ngx_http_request_t *r)
|
|
0
|
1833 {
|
|
58
|
1834 ngx_int_t rc;
|
|
0
|
1835
|
|
|
1836 rc = ngx_http_read_discarded_body(r);
|
|
|
1837
|
|
|
1838 if (rc == NGX_AGAIN) {
|
|
58
|
1839 if (ngx_handle_read_event(r->connection->read, 0) == NGX_ERROR) {
|
|
0
|
1840 ngx_http_close_request(r, rc);
|
|
58
|
1841 ngx_http_close_connection(r->connection);
|
|
0
|
1842 return;
|
|
|
1843 }
|
|
|
1844 }
|
|
|
1845
|
|
|
1846 if (rc != NGX_OK) {
|
|
|
1847 ngx_http_close_request(r, rc);
|
|
58
|
1848 ngx_http_close_connection(r->connection);
|
|
0
|
1849 }
|
|
|
1850 }
|
|
|
1851
|
|
|
1852
|
|
50
|
1853 static ngx_int_t
|
|
|
1854 ngx_http_read_discarded_body(ngx_http_request_t *r)
|
|
0
|
1855 {
|
|
|
1856 ssize_t size, n;
|
|
|
1857 u_char buffer[NGX_HTTP_DISCARD_BUFFER_SIZE];
|
|
|
1858
|
|
|
1859 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1860 "http read discarded body");
|
|
|
1861
|
|
|
1862 if (r->headers_in.content_length_n == 0) {
|
|
|
1863 return NGX_OK;
|
|
|
1864 }
|
|
|
1865
|
|
|
1866
|
|
|
1867 size = r->headers_in.content_length_n;
|
|
|
1868
|
|
|
1869 if (size > NGX_HTTP_DISCARD_BUFFER_SIZE) {
|
|
|
1870 size = NGX_HTTP_DISCARD_BUFFER_SIZE;
|
|
|
1871 }
|
|
|
1872
|
|
|
1873 n = r->connection->recv(r->connection, buffer, size);
|
|
|
1874
|
|
|
1875 if (n == NGX_ERROR) {
|
|
|
1876
|
|
76
|
1877 r->connection->closed = 1;
|
|
0
|
1878
|
|
|
1879 /*
|
|
|
1880 * if a client request body is discarded then we already set
|
|
|
1881 * some HTTP response code for client and we can ignore the error
|
|
|
1882 */
|
|
|
1883
|
|
|
1884 return NGX_OK;
|
|
|
1885 }
|
|
|
1886
|
|
|
1887 if (n == NGX_AGAIN) {
|
|
|
1888 return NGX_AGAIN;
|
|
|
1889 }
|
|
|
1890
|
|
|
1891 r->headers_in.content_length_n -= n;
|
|
|
1892
|
|
|
1893 return NGX_OK;
|
|
|
1894 }
|
|
|
1895
|
|
|
1896
|
|
50
|
1897 static void
|
|
|
1898 ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
0
|
1899 {
|
|
2
|
1900 int tcp_nodelay;
|
|
0
|
1901 ngx_int_t i;
|
|
|
1902 ngx_buf_t *b, *f;
|
|
|
1903 ngx_event_t *rev, *wev;
|
|
|
1904 ngx_connection_t *c;
|
|
|
1905 ngx_http_connection_t *hc;
|
|
|
1906 ngx_http_core_srv_conf_t *cscf;
|
|
|
1907 ngx_http_core_loc_conf_t *clcf;
|
|
|
1908
|
|
|
1909 c = r->connection;
|
|
|
1910 rev = c->read;
|
|
|
1911
|
|
|
1912 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
1913
|
|
32
|
1914 c->log->action = "closing request";
|
|
0
|
1915
|
|
|
1916 hc = r->http_connection;
|
|
|
1917 b = r->header_in;
|
|
|
1918
|
|
|
1919 if (b->pos < b->last) {
|
|
|
1920
|
|
|
1921 /* the pipelined request */
|
|
|
1922
|
|
|
1923 if (b != c->buffer) {
|
|
|
1924
|
|
4
|
1925 /*
|
|
|
1926 * If the large header buffers were allocated while the previous
|
|
|
1927 * request processing then we do not use c->buffer for
|
|
|
1928 * the pipelined request (see ngx_http_init_request()).
|
|
|
1929 *
|
|
|
1930 * Now we would move the large header buffers to the free list.
|
|
|
1931 */
|
|
0
|
1932
|
|
|
1933 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1934
|
|
|
1935 if (hc->free == NULL) {
|
|
|
1936 hc->free = ngx_palloc(c->pool,
|
|
|
1937 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1938
|
|
|
1939 if (hc->free == NULL) {
|
|
26
|
1940 ngx_http_close_request(r, 0);
|
|
0
|
1941 ngx_http_close_connection(c);
|
|
|
1942 return;
|
|
|
1943 }
|
|
|
1944 }
|
|
|
1945
|
|
|
1946 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
1947 f = hc->busy[i];
|
|
|
1948 hc->free[hc->nfree++] = f;
|
|
|
1949 f->pos = f->start;
|
|
|
1950 f->last = f->start;
|
|
|
1951 }
|
|
|
1952
|
|
|
1953 hc->busy[0] = b;
|
|
|
1954 hc->nbusy = 1;
|
|
|
1955 }
|
|
|
1956 }
|
|
|
1957
|
|
26
|
1958 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1959
|
|
0
|
1960 ngx_http_close_request(r, 0);
|
|
|
1961 c->data = hc;
|
|
|
1962
|
|
|
1963 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
1964
|
|
58
|
1965 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
1966 ngx_http_close_connection(c);
|
|
|
1967 return;
|
|
|
1968 }
|
|
|
1969
|
|
|
1970 wev = c->write;
|
|
58
|
1971 wev->handler = ngx_http_empty_handler;
|
|
0
|
1972
|
|
|
1973 if (b->pos < b->last) {
|
|
|
1974
|
|
|
1975 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
1976
|
|
|
1977 hc->pipeline = 1;
|
|
32
|
1978 c->log->action = "reading client pipelined request line";
|
|
0
|
1979 ngx_http_init_request(rev);
|
|
|
1980 return;
|
|
|
1981 }
|
|
|
1982
|
|
|
1983 hc->pipeline = 0;
|
|
|
1984
|
|
4
|
1985 /*
|
|
|
1986 * To keep a memory footprint as small as possible for an idle
|
|
|
1987 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
1988 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
1989 * The large header buffers are always allocated outside the c->pool and
|
|
|
1990 * are freed too.
|
|
|
1991 */
|
|
|
1992
|
|
0
|
1993 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
1994 hc->request = NULL;
|
|
|
1995 }
|
|
|
1996
|
|
|
1997 b = c->buffer;
|
|
|
1998
|
|
|
1999 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
2000
|
|
|
2001 /*
|
|
|
2002 * the special note for ngx_http_keepalive_handler() that
|
|
|
2003 * c->buffer's memory was freed
|
|
|
2004 */
|
|
|
2005
|
|
0
|
2006 b->pos = NULL;
|
|
|
2007
|
|
|
2008 } else {
|
|
|
2009 b->pos = b->start;
|
|
|
2010 b->last = b->start;
|
|
|
2011 }
|
|
|
2012
|
|
10
|
2013 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
2014 hc->free, hc->nfree);
|
|
|
2015
|
|
|
2016 if (hc->free) {
|
|
|
2017 for (i = 0; i < hc->nfree; i++) {
|
|
|
2018 ngx_pfree(c->pool, hc->free[i]);
|
|
|
2019 hc->free[i] = NULL;
|
|
|
2020 }
|
|
|
2021
|
|
|
2022 hc->nfree = 0;
|
|
|
2023 }
|
|
|
2024
|
|
10
|
2025 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
2026 hc->busy, hc->nbusy);
|
|
|
2027
|
|
|
2028 if (hc->busy) {
|
|
|
2029 for (i = 0; i < hc->nbusy; i++) {
|
|
|
2030 ngx_pfree(c->pool, hc->busy[i]);
|
|
|
2031 hc->busy[i] = NULL;
|
|
|
2032 }
|
|
|
2033
|
|
|
2034 hc->nbusy = 0;
|
|
|
2035 }
|
|
|
2036
|
|
58
|
2037 rev->handler = ngx_http_keepalive_handler;
|
|
0
|
2038
|
|
|
2039 if (wev->active) {
|
|
4
|
2040 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
2041 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
|
2042 == NGX_ERROR)
|
|
|
2043 {
|
|
|
2044 ngx_http_close_connection(c);
|
|
|
2045 return;
|
|
|
2046 }
|
|
|
2047
|
|
|
2048 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
2049 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
2050 ngx_http_close_connection(c);
|
|
|
2051 return;
|
|
|
2052 }
|
|
|
2053 }
|
|
|
2054 }
|
|
|
2055
|
|
32
|
2056 c->log->action = "keepalive";
|
|
0
|
2057
|
|
|
2058 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
50
|
2059 if (ngx_tcp_push(c->fd) == -1) {
|
|
0
|
2060 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
2061 ngx_http_close_connection(c);
|
|
|
2062 return;
|
|
|
2063 }
|
|
2
|
2064
|
|
0
|
2065 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
2066 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
2067
|
|
|
2068 } else {
|
|
22
|
2069 tcp_nodelay = 1;
|
|
|
2070 }
|
|
|
2071
|
|
32
|
2072 if (tcp_nodelay
|
|
|
2073 && clcf->tcp_nodelay
|
|
|
2074 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
2075 {
|
|
22
|
2076 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
2077
|
|
|
2078 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
|
2079 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
|
2080 {
|
|
|
2081 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2082 "setsockopt(TCP_NODELAY) failed");
|
|
|
2083 ngx_http_close_connection(c);
|
|
|
2084 return;
|
|
2
|
2085 }
|
|
22
|
2086
|
|
32
|
2087 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
2088 }
|
|
|
2089
|
|
|
2090 #if 0
|
|
4
|
2091 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
2092 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
2093 #endif
|
|
|
2094
|
|
|
2095 if (rev->ready) {
|
|
|
2096 ngx_http_keepalive_handler(rev);
|
|
|
2097 }
|
|
|
2098 }
|
|
|
2099
|
|
|
2100
|
|
50
|
2101 static void
|
|
|
2102 ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
0
|
2103 {
|
|
50
|
2104 size_t size;
|
|
|
2105 ssize_t n;
|
|
|
2106 ngx_buf_t *b;
|
|
|
2107 ngx_connection_t *c;
|
|
0
|
2108
|
|
|
2109 c = rev->data;
|
|
|
2110
|
|
|
2111 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
2112
|
|
|
2113 if (rev->timedout) {
|
|
|
2114 ngx_http_close_connection(c);
|
|
|
2115 return;
|
|
|
2116 }
|
|
|
2117
|
|
18
|
2118 #if (NGX_HAVE_KQUEUE)
|
|
0
|
2119
|
|
4
|
2120 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
2121 if (rev->pending_eof) {
|
|
32
|
2122 c->log->handler = NULL;
|
|
0
|
2123 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
2124 "kevent() reported that client %V closed "
|
|
32
|
2125 "keepalive connection", &c->addr_text);
|
|
22
|
2126 #if (NGX_HTTP_SSL)
|
|
|
2127 if (c->ssl) {
|
|
|
2128 c->ssl->no_send_shut = 1;
|
|
|
2129 }
|
|
|
2130 #endif
|
|
0
|
2131 ngx_http_close_connection(c);
|
|
|
2132 return;
|
|
|
2133 }
|
|
|
2134 }
|
|
|
2135
|
|
|
2136 #endif
|
|
|
2137
|
|
|
2138 b = c->buffer;
|
|
|
2139 size = b->end - b->start;
|
|
|
2140
|
|
|
2141 if (b->pos == NULL) {
|
|
4
|
2142
|
|
|
2143 /*
|
|
|
2144 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
2145 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
2146 * to keep the buffer size.
|
|
|
2147 */
|
|
|
2148
|
|
50
|
2149 b->pos = ngx_palloc(c->pool, size);
|
|
|
2150 if (b->pos == NULL) {
|
|
0
|
2151 ngx_http_close_connection(c);
|
|
|
2152 return;
|
|
|
2153 }
|
|
|
2154
|
|
|
2155 b->start = b->pos;
|
|
|
2156 b->last = b->pos;
|
|
|
2157 b->end = b->pos + size;
|
|
|
2158 }
|
|
|
2159
|
|
|
2160 /*
|
|
|
2161 * MSIE closes a keepalive connection with RST flag
|
|
|
2162 * so we ignore ECONNRESET here.
|
|
|
2163 */
|
|
|
2164
|
|
|
2165 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
2166 ngx_set_socket_errno(0);
|
|
|
2167
|
|
|
2168 n = c->recv(c, b->last, size);
|
|
|
2169 c->log_error = NGX_ERROR_INFO;
|
|
|
2170
|
|
|
2171 if (n == NGX_AGAIN) {
|
|
58
|
2172 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
24
|
2173 ngx_http_close_connection(c);
|
|
|
2174 }
|
|
|
2175
|
|
0
|
2176 return;
|
|
|
2177 }
|
|
|
2178
|
|
|
2179 if (n == NGX_ERROR) {
|
|
|
2180 ngx_http_close_connection(c);
|
|
|
2181 return;
|
|
|
2182 }
|
|
|
2183
|
|
32
|
2184 c->log->handler = NULL;
|
|
0
|
2185
|
|
|
2186 if (n == 0) {
|
|
|
2187 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
2188 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
2189 ngx_http_close_connection(c);
|
|
|
2190 return;
|
|
|
2191 }
|
|
|
2192
|
|
|
2193 b->last += n;
|
|
32
|
2194
|
|
|
2195 c->log->handler = ngx_http_log_error;
|
|
|
2196 c->log->action = "reading client request line";
|
|
0
|
2197
|
|
|
2198 ngx_http_init_request(rev);
|
|
|
2199 }
|
|
|
2200
|
|
|
2201
|
|
50
|
2202 static void
|
|
|
2203 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
0
|
2204 {
|
|
|
2205 ngx_event_t *rev, *wev;
|
|
|
2206 ngx_connection_t *c;
|
|
|
2207 ngx_http_core_loc_conf_t *clcf;
|
|
|
2208
|
|
|
2209 c = r->connection;
|
|
|
2210
|
|
|
2211 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2212
|
|
|
2213 rev = c->read;
|
|
58
|
2214 rev->handler = ngx_http_lingering_close_handler;
|
|
0
|
2215
|
|
|
2216 r->lingering_time = ngx_time() + clcf->lingering_time / 1000;
|
|
|
2217 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2218
|
|
58
|
2219 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
2220 ngx_http_close_request(r, 0);
|
|
|
2221 ngx_http_close_connection(c);
|
|
|
2222 return;
|
|
|
2223 }
|
|
|
2224
|
|
|
2225 wev = c->write;
|
|
58
|
2226 wev->handler = ngx_http_empty_handler;
|
|
0
|
2227
|
|
|
2228 if (wev->active) {
|
|
4
|
2229 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
2230 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
|
2231 == NGX_ERROR)
|
|
|
2232 {
|
|
26
|
2233 ngx_http_close_request(r, 0);
|
|
0
|
2234 ngx_http_close_connection(c);
|
|
|
2235 return;
|
|
|
2236 }
|
|
|
2237
|
|
|
2238 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
2239 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
26
|
2240 ngx_http_close_request(r, 0);
|
|
0
|
2241 ngx_http_close_connection(c);
|
|
|
2242 return;
|
|
|
2243 }
|
|
|
2244 }
|
|
|
2245 }
|
|
|
2246
|
|
|
2247 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
2248 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2249 ngx_shutdown_socket_n " failed");
|
|
|
2250 ngx_http_close_request(r, 0);
|
|
|
2251 ngx_http_close_connection(c);
|
|
|
2252 return;
|
|
|
2253 }
|
|
|
2254
|
|
|
2255 if (rev->ready) {
|
|
|
2256 ngx_http_lingering_close_handler(rev);
|
|
|
2257 }
|
|
|
2258 }
|
|
|
2259
|
|
|
2260
|
|
50
|
2261 static void
|
|
|
2262 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
0
|
2263 {
|
|
|
2264 ssize_t n;
|
|
|
2265 ngx_msec_t timer;
|
|
|
2266 ngx_connection_t *c;
|
|
|
2267 ngx_http_request_t *r;
|
|
|
2268 ngx_http_core_loc_conf_t *clcf;
|
|
|
2269 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
2270
|
|
|
2271 c = rev->data;
|
|
|
2272 r = c->data;
|
|
|
2273
|
|
|
2274 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2275 "http lingering close handler");
|
|
|
2276
|
|
|
2277 if (rev->timedout) {
|
|
|
2278 ngx_http_close_request(r, 0);
|
|
|
2279 ngx_http_close_connection(c);
|
|
|
2280 return;
|
|
|
2281 }
|
|
|
2282
|
|
|
2283 timer = r->lingering_time - ngx_time();
|
|
|
2284 if (timer <= 0) {
|
|
|
2285 ngx_http_close_request(r, 0);
|
|
|
2286 ngx_http_close_connection(c);
|
|
|
2287 return;
|
|
|
2288 }
|
|
|
2289
|
|
|
2290 do {
|
|
|
2291 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
2292
|
|
|
2293 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
2294
|
|
|
2295 if (n == NGX_ERROR || n == 0) {
|
|
|
2296 ngx_http_close_request(r, 0);
|
|
|
2297 ngx_http_close_connection(c);
|
|
|
2298 return;
|
|
|
2299 }
|
|
|
2300
|
|
|
2301 } while (rev->ready);
|
|
|
2302
|
|
58
|
2303 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
26
|
2304 ngx_http_close_request(r, 0);
|
|
24
|
2305 ngx_http_close_connection(c);
|
|
|
2306 return;
|
|
|
2307 }
|
|
|
2308
|
|
0
|
2309 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2310
|
|
|
2311 timer *= 1000;
|
|
|
2312
|
|
|
2313 if (timer > clcf->lingering_timeout) {
|
|
|
2314 timer = clcf->lingering_timeout;
|
|
|
2315 }
|
|
|
2316
|
|
|
2317 ngx_add_timer(rev, timer);
|
|
|
2318 }
|
|
|
2319
|
|
|
2320
|
|
50
|
2321 void
|
|
|
2322 ngx_http_empty_handler(ngx_event_t *wev)
|
|
0
|
2323 {
|
|
|
2324 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2325
|
|
|
2326 return;
|
|
|
2327 }
|
|
|
2328
|
|
|
2329
|
|
58
|
2330 void
|
|
|
2331 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
|
2332 {
|
|
|
2333 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2334 "http requets empty handler");
|
|
|
2335
|
|
|
2336 return;
|
|
|
2337 }
|
|
|
2338
|
|
|
2339
|
|
50
|
2340 ngx_int_t
|
|
|
2341 ngx_http_send_last(ngx_http_request_t *r)
|
|
0
|
2342 {
|
|
|
2343 ngx_buf_t *b;
|
|
|
2344 ngx_chain_t out;
|
|
|
2345
|
|
50
|
2346 b = ngx_calloc_buf(r->pool);
|
|
|
2347 if (b == NULL) {
|
|
0
|
2348 return NGX_ERROR;
|
|
|
2349 }
|
|
|
2350
|
|
|
2351 b->last_buf = 1;
|
|
|
2352 out.buf = b;
|
|
|
2353 out.next = NULL;
|
|
|
2354
|
|
|
2355 return ngx_http_output_filter(r, &out);
|
|
|
2356 }
|
|
|
2357
|
|
|
2358
|
|
50
|
2359 void
|
|
58
|
2360 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error)
|
|
0
|
2361 {
|
|
|
2362 ngx_log_t *log;
|
|
58
|
2363 struct linger linger;
|
|
0
|
2364 ngx_http_log_ctx_t *ctx;
|
|
|
2365 ngx_http_core_loc_conf_t *clcf;
|
|
|
2366
|
|
|
2367 log = r->connection->log;
|
|
|
2368
|
|
|
2369 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2370
|
|
|
2371 if (r->pool == NULL) {
|
|
80
|
2372 ngx_log_error(NGX_LOG_ALERT, log, 0, "http request already closed");
|
|
0
|
2373 return;
|
|
|
2374 }
|
|
|
2375
|
|
|
2376 #if (NGX_STAT_STUB)
|
|
|
2377 if (r->stat_reading) {
|
|
42
|
2378 ngx_atomic_dec(ngx_stat_reading);
|
|
0
|
2379 }
|
|
|
2380
|
|
|
2381 if (r->stat_writing) {
|
|
42
|
2382 ngx_atomic_dec(ngx_stat_writing);
|
|
0
|
2383 }
|
|
|
2384 #endif
|
|
|
2385
|
|
|
2386 if (error && r->headers_out.status == 0) {
|
|
|
2387 r->headers_out.status = error;
|
|
|
2388 }
|
|
|
2389
|
|
|
2390 ngx_http_log_handler(r);
|
|
|
2391
|
|
|
2392 if (r->connection->timedout) {
|
|
|
2393 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2394
|
|
|
2395 if (clcf->reset_timedout_connection) {
|
|
58
|
2396 linger.l_onoff = 1;
|
|
|
2397 linger.l_linger = 0;
|
|
0
|
2398
|
|
|
2399 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
58
|
2400 (const void *) &linger, sizeof(struct linger)) == -1)
|
|
0
|
2401 {
|
|
|
2402 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2403 "setsockopt(SO_LINGER) failed");
|
|
|
2404 }
|
|
|
2405 }
|
|
|
2406 }
|
|
|
2407
|
|
58
|
2408 /* the various request strings were allocated from r->pool */
|
|
0
|
2409 ctx = log->data;
|
|
10
|
2410 ctx->request = NULL;
|
|
0
|
2411
|
|
|
2412 r->request_line.len = 0;
|
|
|
2413
|
|
|
2414 ngx_destroy_pool(r->pool);
|
|
|
2415 }
|
|
|
2416
|
|
|
2417
|
|
80
|
2418 static void
|
|
50
|
2419 ngx_http_close_connection(ngx_connection_t *c)
|
|
0
|
2420 {
|
|
28
|
2421 ngx_pool_t *pool;
|
|
|
2422
|
|
0
|
2423 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2424 "close http connection: %d", c->fd);
|
|
|
2425
|
|
88
|
2426 #if (NGX_HTTP_SSL)
|
|
2
|
2427
|
|
|
2428 if (c->ssl) {
|
|
|
2429 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
80
|
2430 c->read->handler = ngx_http_ssl_close_handler;
|
|
|
2431 c->write->handler = ngx_http_ssl_close_handler;
|
|
2
|
2432 return;
|
|
|
2433 }
|
|
|
2434 }
|
|
|
2435
|
|
|
2436 #endif
|
|
|
2437
|
|
0
|
2438 #if (NGX_STAT_STUB)
|
|
42
|
2439 ngx_atomic_dec(ngx_stat_active);
|
|
0
|
2440 #endif
|
|
|
2441
|
|
28
|
2442 pool = c->pool;
|
|
|
2443
|
|
0
|
2444 ngx_close_connection(c);
|
|
28
|
2445
|
|
50
|
2446 ngx_destroy_pool(pool);
|
|
0
|
2447 }
|
|
|
2448
|
|
|
2449
|
|
88
|
2450 #if (NGX_HTTP_SSL)
|
|
|
2451
|
|
|
2452 static void
|
|
|
2453 ngx_http_ssl_close_handler(ngx_event_t *ev)
|
|
|
2454 {
|
|
|
2455 ngx_connection_t *c;
|
|
|
2456
|
|
|
2457 c = ev->data;
|
|
|
2458
|
|
|
2459 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ev->log, 0, "http ssl close handler");
|
|
|
2460
|
|
|
2461 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
2462 return;
|
|
|
2463 }
|
|
|
2464
|
|
|
2465 ngx_http_close_connection(c);
|
|
|
2466 }
|
|
|
2467
|
|
|
2468 #endif
|
|
|
2469
|
|
|
2470
|
|
50
|
2471 static u_char *
|
|
|
2472 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
2473 {
|
|
32
|
2474 u_char *p;
|
|
54
|
2475 ngx_http_request_t *r;
|
|
32
|
2476 ngx_http_log_ctx_t *ctx;
|
|
10
|
2477
|
|
32
|
2478 if (log->action) {
|
|
58
|
2479 p = ngx_snprintf(buf, len, " while %s", log->action);
|
|
10
|
2480 len -= p - buf;
|
|
54
|
2481 buf = p;
|
|
10
|
2482 }
|
|
|
2483
|
|
58
|
2484 ctx = log->data;
|
|
|
2485
|
|
54
|
2486 p = ngx_snprintf(buf, len, ", client: %V", ctx->client);
|
|
58
|
2487 len -= p - buf;
|
|
54
|
2488
|
|
|
2489 r = ctx->request;
|
|
|
2490
|
|
58
|
2491 if (r) {
|
|
|
2492 return r->log_handler(r, p, len);
|
|
0
|
2493 }
|
|
10
|
2494
|
|
58
|
2495 return p;
|
|
|
2496 }
|
|
|
2497
|
|
|
2498
|
|
|
2499 static u_char *
|
|
|
2500 ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2501 {
|
|
|
2502 u_char *p;
|
|
54
|
2503
|
|
|
2504 if (r->server_name.data) {
|
|
|
2505 p = ngx_snprintf(buf, len, ", server: %V", &r->server_name);
|
|
52
|
2506 len -= p - buf;
|
|
54
|
2507 buf = p;
|
|
52
|
2508 }
|
|
|
2509
|
|
54
|
2510 if (r->unparsed_uri.data) {
|
|
|
2511 p = ngx_snprintf(buf, len, ", URL: \"%V\"", &r->unparsed_uri);
|
|
|
2512 len -= p - buf;
|
|
|
2513 buf = p;
|
|
|
2514
|
|
|
2515 } else {
|
|
|
2516 if (r->request_line.data == NULL && r->request_start) {
|
|
|
2517 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
2518 if (*p == CR || *p == LF) {
|
|
|
2519 break;
|
|
|
2520 }
|
|
|
2521 }
|
|
|
2522
|
|
|
2523 r->request_line.len = p - r->request_start;
|
|
|
2524 r->request_line.data = r->request_start;
|
|
|
2525 }
|
|
|
2526
|
|
|
2527 if (r->request_line.len) {
|
|
|
2528 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
|
2529 len -= p - buf;
|
|
|
2530 buf = p;
|
|
|
2531 }
|
|
10
|
2532 }
|
|
|
2533
|
|
54
|
2534 return ngx_http_log_error_info(r, buf, len);
|
|
0
|
2535 }
|
|
54
|
2536
|
|
|
2537
|
|
|
2538 u_char *
|
|
|
2539 ngx_http_log_error_info(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2540 {
|
|
|
2541 u_char *p;
|
|
|
2542
|
|
|
2543 if (r->headers_in.host) {
|
|
|
2544 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
|
2545 &r->headers_in.host->value);
|
|
|
2546 len -= p - buf;
|
|
|
2547 buf = p;
|
|
|
2548 }
|
|
|
2549
|
|
|
2550 if (r->headers_in.referer) {
|
|
|
2551 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
|
2552 &r->headers_in.referer->value);
|
|
|
2553 buf = p;
|
|
|
2554 }
|
|
|
2555
|
|
|
2556 return buf;
|
|
|
2557 }
|
