|
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
|
|
|
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);
|
|
80
|
42 static void ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error);
|
|
118
|
43 static void ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error);
|
|
80
|
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);
|
|
96
|
52 static void ngx_http_ssl_handshake_handler(ngx_connection_t *c);
|
|
88
|
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
|
|
130
|
97 { ngx_string("Transfer-Encoding"),
|
|
|
98 offsetof(ngx_http_headers_in_t, transfer_encoding),
|
|
|
99 ngx_http_process_header_line },
|
|
|
100
|
|
0
|
101 #if (NGX_HTTP_GZIP)
|
|
|
102 { ngx_string("Accept-Encoding"),
|
|
58
|
103 offsetof(ngx_http_headers_in_t, accept_encoding),
|
|
|
104 ngx_http_process_header_line },
|
|
|
105
|
|
|
106 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via),
|
|
|
107 ngx_http_process_header_line },
|
|
0
|
108 #endif
|
|
|
109
|
|
|
110 { ngx_string("Authorization"),
|
|
58
|
111 offsetof(ngx_http_headers_in_t, authorization),
|
|
72
|
112 ngx_http_process_unique_header_line },
|
|
58
|
113
|
|
|
114 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive),
|
|
|
115 ngx_http_process_header_line },
|
|
0
|
116
|
|
122
|
117 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP)
|
|
0
|
118 { ngx_string("X-Forwarded-For"),
|
|
58
|
119 offsetof(ngx_http_headers_in_t, x_forwarded_for),
|
|
|
120 ngx_http_process_header_line },
|
|
0
|
121 #endif
|
|
28
|
122
|
|
122
|
123 #if (NGX_HTTP_REALIP)
|
|
|
124 { ngx_string("X-Real-IP"),
|
|
|
125 offsetof(ngx_http_headers_in_t, x_real_ip),
|
|
|
126 ngx_http_process_header_line },
|
|
|
127 #endif
|
|
|
128
|
|
38
|
129 #if (NGX_HTTP_HEADERS)
|
|
58
|
130 { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept),
|
|
|
131 ngx_http_process_header_line },
|
|
|
132
|
|
38
|
133 { ngx_string("Accept-Language"),
|
|
58
|
134 offsetof(ngx_http_headers_in_t, accept_language),
|
|
|
135 ngx_http_process_header_line },
|
|
38
|
136 #endif
|
|
|
137
|
|
58
|
138 { ngx_string("Cookie"), 0, ngx_http_process_cookie },
|
|
|
139
|
|
|
140 { ngx_null_string, 0, NULL }
|
|
0
|
141 };
|
|
|
142
|
|
|
143
|
|
50
|
144 void
|
|
|
145 ngx_http_init_connection(ngx_connection_t *c)
|
|
0
|
146 {
|
|
|
147 ngx_event_t *rev;
|
|
|
148 ngx_http_log_ctx_t *ctx;
|
|
|
149
|
|
50
|
150 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
|
|
|
151 if (ctx == NULL) {
|
|
0
|
152 ngx_http_close_connection(c);
|
|
|
153 return;
|
|
|
154 }
|
|
|
155
|
|
10
|
156 ctx->client = &c->addr_text;
|
|
|
157 ctx->request = NULL;
|
|
32
|
158
|
|
|
159 c->log->connection = c->number;
|
|
|
160 c->log->handler = ngx_http_log_error;
|
|
0
|
161 c->log->data = ctx;
|
|
32
|
162 c->log->action = "reading client request line";
|
|
|
163
|
|
0
|
164 c->log_error = NGX_ERROR_INFO;
|
|
|
165
|
|
|
166 rev = c->read;
|
|
58
|
167 rev->handler = ngx_http_init_request;
|
|
118
|
168 c->write->handler = ngx_http_empty_handler;
|
|
0
|
169
|
|
116
|
170 #if (NGX_STAT_STUB)
|
|
|
171 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
172 #endif
|
|
|
173
|
|
0
|
174 if (rev->ready) {
|
|
|
175 /* the deferred accept(), rtsig, aio, iocp */
|
|
|
176
|
|
|
177 if (ngx_accept_mutex) {
|
|
112
|
178 ngx_post_event(rev, &ngx_posted_events);
|
|
0
|
179 return;
|
|
|
180 }
|
|
|
181
|
|
|
182 ngx_http_init_request(rev);
|
|
|
183 return;
|
|
|
184 }
|
|
|
185
|
|
|
186 ngx_add_timer(rev, c->listening->post_accept_timeout);
|
|
|
187
|
|
|
188 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
116
|
189 #if (NGX_STAT_STUB)
|
|
|
190 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
|
191 #endif
|
|
0
|
192 ngx_http_close_connection(c);
|
|
|
193 return;
|
|
|
194 }
|
|
|
195 }
|
|
|
196
|
|
|
197
|
|
50
|
198 static
|
|
|
199 void ngx_http_init_request(ngx_event_t *rev)
|
|
0
|
200 {
|
|
122
|
201 ngx_uint_t i;
|
|
|
202 socklen_t len;
|
|
|
203 struct sockaddr_in sin;
|
|
|
204 ngx_connection_t *c;
|
|
|
205 ngx_http_request_t *r;
|
|
|
206 ngx_http_in_port_t *in_port;
|
|
|
207 ngx_http_in_addr_t *in_addr;
|
|
|
208 ngx_http_log_ctx_t *ctx;
|
|
|
209 ngx_http_connection_t *hc;
|
|
|
210 ngx_http_server_name_t *server_name;
|
|
|
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
|
|
|
272 in_port = c->servers;
|
|
|
273 in_addr = in_port->addrs.elts;
|
|
|
274
|
|
|
275 r->port = in_port->port;
|
|
|
276 r->port_text = &in_port->port_text;
|
|
|
277
|
|
|
278 i = 0;
|
|
|
279
|
|
|
280 if (in_port->addrs.nelts > 1) {
|
|
|
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
|
|
|
311 for ( /* void */ ; i < in_port->addrs.nelts - 1; i++) {
|
|
|
312 if (in_addr[i].addr == r->in_addr) {
|
|
|
313 break;
|
|
|
314 }
|
|
|
315 }
|
|
|
316
|
|
|
317 } else {
|
|
|
318 r->in_addr = in_addr[0].addr;
|
|
|
319 }
|
|
|
320
|
|
26
|
321 r->virtual_names = &in_addr[i];
|
|
0
|
322
|
|
|
323 /* the default server configuration for the address:port */
|
|
|
324 cscf = in_addr[i].core_srv_conf;
|
|
|
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
|
|
58
|
330 rev->handler = ngx_http_process_request_line;
|
|
0
|
331
|
|
|
332 #if (NGX_HTTP_SSL)
|
|
|
333
|
|
|
334 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
|
335 if (sscf->enable) {
|
|
|
336
|
|
|
337 if (c->ssl == NULL) {
|
|
96
|
338 if (ngx_ssl_create_connection(&sscf->ssl, c, NGX_SSL_BUFFER)
|
|
56
|
339 == NGX_ERROR)
|
|
0
|
340 {
|
|
|
341 ngx_http_close_connection(c);
|
|
|
342 return;
|
|
|
343 }
|
|
|
344
|
|
58
|
345 rev->handler = ngx_http_ssl_handshake;
|
|
0
|
346 }
|
|
|
347
|
|
62
|
348 r->main_filter_need_in_memory = 1;
|
|
0
|
349 }
|
|
|
350
|
|
|
351 #endif
|
|
|
352
|
|
|
353 server_name = cscf->server_names.elts;
|
|
6
|
354 r->server_name = server_name->name;
|
|
0
|
355
|
|
|
356 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
357 c->log->file = clcf->err_log->file;
|
|
|
358 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
359 c->log->log_level = clcf->err_log->log_level;
|
|
|
360 }
|
|
|
361
|
|
|
362 if (c->buffer == NULL) {
|
|
|
363 c->buffer = ngx_create_temp_buf(c->pool,
|
|
|
364 cscf->client_header_buffer_size);
|
|
|
365 if (c->buffer == NULL) {
|
|
|
366 ngx_http_close_connection(c);
|
|
|
367 return;
|
|
|
368 }
|
|
|
369 }
|
|
|
370
|
|
|
371 if (r->header_in == NULL) {
|
|
|
372 r->header_in = c->buffer;
|
|
|
373 }
|
|
|
374
|
|
50
|
375 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
|
|
|
376 if (r->pool == NULL) {
|
|
0
|
377 ngx_http_close_connection(c);
|
|
|
378 return;
|
|
|
379 }
|
|
|
380
|
|
|
381
|
|
|
382 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
|
130
|
383 sizeof(ngx_table_elt_t))
|
|
|
384 == NGX_ERROR)
|
|
0
|
385 {
|
|
|
386 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
387 return;
|
|
|
388 }
|
|
|
389
|
|
|
390 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
391 if (r->ctx == NULL) {
|
|
|
392 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
393 return;
|
|
|
394 }
|
|
|
395
|
|
122
|
396 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
397
|
|
|
398 r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts
|
|
|
399 * sizeof(ngx_http_variable_value_t));
|
|
|
400 if (r->variables == NULL) {
|
|
|
401 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
402 return;
|
|
|
403 }
|
|
|
404
|
|
0
|
405 c->single_connection = 1;
|
|
132
|
406 c->destroyed = 0;
|
|
|
407
|
|
0
|
408 r->connection = c;
|
|
|
409
|
|
102
|
410 r->main = r;
|
|
|
411
|
|
46
|
412 r->start_time = ngx_time();
|
|
|
413
|
|
0
|
414 r->headers_in.content_length_n = -1;
|
|
|
415 r->headers_in.keep_alive_n = -1;
|
|
|
416 r->headers_out.content_length_n = -1;
|
|
|
417 r->headers_out.last_modified_time = -1;
|
|
|
418
|
|
|
419 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
420
|
|
54
|
421 ctx = c->log->data;
|
|
|
422 ctx->request = r;
|
|
58
|
423 r->log_handler = ngx_http_log_error_handler;
|
|
54
|
424
|
|
0
|
425 #if (NGX_STAT_STUB)
|
|
110
|
426 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
26
|
427 r->stat_reading = 1;
|
|
110
|
428 ngx_atomic_fetch_add(ngx_stat_requests, 1);
|
|
0
|
429 #endif
|
|
|
430
|
|
58
|
431 rev->handler(rev);
|
|
0
|
432 }
|
|
|
433
|
|
|
434
|
|
|
435 #if (NGX_HTTP_SSL)
|
|
|
436
|
|
50
|
437 static void
|
|
|
438 ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
0
|
439 {
|
|
10
|
440 u_char buf[1];
|
|
|
441 ssize_t n;
|
|
0
|
442 ngx_int_t rc;
|
|
|
443 ngx_connection_t *c;
|
|
|
444 ngx_http_request_t *r;
|
|
|
445
|
|
|
446 c = rev->data;
|
|
|
447 r = c->data;
|
|
|
448
|
|
|
449 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
450 "http check ssl handshake");
|
|
|
451
|
|
|
452 if (rev->timedout) {
|
|
54
|
453 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
454 c->timedout = 1;
|
|
|
455 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
456 return;
|
|
|
457 }
|
|
|
458
|
|
132
|
459 n = recv(c->fd, (char *) buf, 1, MSG_PEEK);
|
|
0
|
460
|
|
|
461 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
|
462 return;
|
|
|
463 }
|
|
|
464
|
|
|
465 if (n == 1) {
|
|
|
466 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
467 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
468 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
469
|
|
|
470 rc = ngx_ssl_handshake(c);
|
|
|
471
|
|
96
|
472 if (rc == NGX_AGAIN) {
|
|
|
473 c->ssl->handler = ngx_http_ssl_handshake_handler;
|
|
0
|
474 return;
|
|
|
475 }
|
|
|
476
|
|
96
|
477 ngx_http_ssl_handshake_handler(c);
|
|
|
478
|
|
|
479 return;
|
|
0
|
480
|
|
|
481 } else {
|
|
|
482 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
483 "plain http");
|
|
|
484
|
|
|
485 r->plain_http = 1;
|
|
|
486 }
|
|
|
487 }
|
|
|
488
|
|
58
|
489 rev->handler = ngx_http_process_request_line;
|
|
0
|
490 ngx_http_process_request_line(rev);
|
|
|
491 }
|
|
|
492
|
|
96
|
493
|
|
|
494 static void
|
|
|
495 ngx_http_ssl_handshake_handler(ngx_connection_t *c)
|
|
|
496 {
|
|
|
497 ngx_http_request_t *r;
|
|
|
498
|
|
|
499 if (c->ssl->handshaked) {
|
|
|
500
|
|
|
501 /*
|
|
|
502 * The majority of browsers do not send the "close notify" alert.
|
|
|
503 * Among them are MSIE, old Mozilla, Netscape 4, Konqueror,
|
|
|
504 * and Links. And what is more, MSIE ignores the server's alert.
|
|
|
505 *
|
|
|
506 * Opera and recent Mozilla send the alert.
|
|
|
507 */
|
|
|
508
|
|
|
509 c->ssl->no_wait_shutdown = 1;
|
|
|
510
|
|
|
511 c->read->handler = ngx_http_process_request_line;
|
|
|
512 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
|
|
|
513
|
|
|
514 ngx_http_process_request_line(c->read);
|
|
|
515
|
|
|
516 return;
|
|
|
517 }
|
|
|
518
|
|
|
519 r = c->data;
|
|
|
520
|
|
|
521 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
522
|
|
|
523 return;
|
|
|
524 }
|
|
|
525
|
|
|
526
|
|
0
|
527 #endif
|
|
|
528
|
|
|
529
|
|
50
|
530 static void
|
|
|
531 ngx_http_process_request_line(ngx_event_t *rev)
|
|
0
|
532 {
|
|
|
533 ssize_t n;
|
|
|
534 ngx_int_t rc, rv;
|
|
|
535 ngx_connection_t *c;
|
|
|
536 ngx_http_request_t *r;
|
|
|
537 ngx_http_log_ctx_t *ctx;
|
|
|
538
|
|
|
539 c = rev->data;
|
|
|
540 r = c->data;
|
|
|
541
|
|
|
542 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
543 "http process request line");
|
|
|
544
|
|
|
545 if (rev->timedout) {
|
|
54
|
546 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
547 c->timedout = 1;
|
|
|
548 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
549 return;
|
|
|
550 }
|
|
|
551
|
|
|
552 rc = NGX_AGAIN;
|
|
|
553
|
|
|
554 for ( ;; ) {
|
|
|
555
|
|
|
556 if (rc == NGX_AGAIN) {
|
|
|
557 n = ngx_http_read_request_header(r);
|
|
|
558
|
|
|
559 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
560 return;
|
|
|
561 }
|
|
|
562 }
|
|
|
563
|
|
|
564 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
565
|
|
|
566 if (rc == NGX_OK) {
|
|
|
567
|
|
|
568 /* the request line has been parsed successfully */
|
|
|
569
|
|
10
|
570 r->request_line.len = r->request_end - r->request_start;
|
|
|
571 r->request_line.data = r->request_start;
|
|
|
572
|
|
0
|
573
|
|
|
574 if (r->args_start) {
|
|
|
575 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
576 } else {
|
|
|
577 r->uri.len = r->uri_end - r->uri_start;
|
|
|
578 }
|
|
|
579
|
|
18
|
580
|
|
2
|
581 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
582
|
|
50
|
583 r->uri.data = ngx_palloc(r->pool, r->uri.len + 1);
|
|
|
584 if (r->uri.data == NULL) {
|
|
10
|
585 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
586 return;
|
|
|
587 }
|
|
|
588
|
|
0
|
589 rc = ngx_http_parse_complex_uri(r);
|
|
|
590
|
|
54
|
591 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
|
592 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
593 "client sent invalid request");
|
|
|
594 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
595 return;
|
|
|
596 }
|
|
|
597
|
|
|
598 } else {
|
|
10
|
599 r->uri.data = r->uri_start;
|
|
0
|
600 }
|
|
|
601
|
|
18
|
602
|
|
10
|
603 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
604 r->unparsed_uri.data = r->uri_start;
|
|
|
605
|
|
0
|
606
|
|
58
|
607 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
608 r->method_name.data = r->request_line.data;
|
|
0
|
609
|
|
10
|
610
|
|
28
|
611 if (r->http_protocol.data) {
|
|
|
612 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
613 }
|
|
|
614
|
|
|
615
|
|
0
|
616 if (r->uri_ext) {
|
|
|
617 if (r->args_start) {
|
|
|
618 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
619 } else {
|
|
|
620 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
621 }
|
|
|
622
|
|
10
|
623 r->exten.data = r->uri_ext;
|
|
0
|
624 }
|
|
|
625
|
|
10
|
626
|
|
0
|
627 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
628 r->args.len = r->uri_end - r->args_start;
|
|
10
|
629 r->args.data = r->args_start;
|
|
0
|
630 }
|
|
|
631
|
|
10
|
632
|
|
|
633 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
634 "http request line: \"%V\"", &r->request_line);
|
|
|
635
|
|
0
|
636 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
637 "http uri: \"%V\"", &r->uri);
|
|
0
|
638
|
|
|
639 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
640 "http args: \"%V\"", &r->args);
|
|
0
|
641
|
|
|
642 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
643 "http exten: \"%V\"", &r->exten);
|
|
|
644
|
|
0
|
645 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
86
|
646
|
|
|
647 if (rev->timer_set) {
|
|
|
648 ngx_del_timer(rev);
|
|
|
649 }
|
|
|
650
|
|
|
651 #if (NGX_STAT_STUB)
|
|
110
|
652 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
86
|
653 r->stat_reading = 0;
|
|
110
|
654 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
86
|
655 r->stat_writing = 1;
|
|
|
656 #endif
|
|
|
657
|
|
|
658 rev->handler = ngx_http_request_handler;
|
|
|
659 c->write->handler = ngx_http_request_handler;
|
|
58
|
660 r->read_event_handler = ngx_http_block_read;
|
|
86
|
661
|
|
0
|
662 ngx_http_handler(r);
|
|
86
|
663
|
|
0
|
664 return;
|
|
|
665 }
|
|
|
666
|
|
|
667
|
|
|
668 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
130
|
669 sizeof(ngx_table_elt_t))
|
|
|
670 == NGX_ERROR)
|
|
0
|
671 {
|
|
|
672 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
673 return;
|
|
|
674 }
|
|
|
675
|
|
|
676
|
|
48
|
677 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
|
130
|
678 sizeof(ngx_table_elt_t *))
|
|
|
679 == NGX_ERROR)
|
|
0
|
680 {
|
|
|
681 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
682 return;
|
|
|
683 }
|
|
|
684
|
|
32
|
685 c->log->action = "reading client request headers";
|
|
0
|
686
|
|
58
|
687 rev->handler = ngx_http_process_request_headers;
|
|
0
|
688 ngx_http_process_request_headers(rev);
|
|
|
689
|
|
|
690 return;
|
|
54
|
691 }
|
|
|
692
|
|
|
693 if (rc != NGX_AGAIN) {
|
|
0
|
694
|
|
|
695 /* there was error while a request line parsing */
|
|
|
696
|
|
54
|
697 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
698 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
|
699 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
700 return;
|
|
|
701 }
|
|
|
702
|
|
|
703 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
704
|
|
|
705 if (r->header_in->pos == r->header_in->end) {
|
|
|
706
|
|
|
707 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
708
|
|
|
709 if (rv == NGX_ERROR) {
|
|
|
710 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
711 return;
|
|
|
712 }
|
|
|
713
|
|
|
714 if (rv == NGX_DECLINED) {
|
|
54
|
715 ctx = c->log->data;
|
|
|
716 ctx->request = r;
|
|
|
717
|
|
|
718 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
719 r->request_line.data = r->request_start;
|
|
|
720
|
|
|
721 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
722 "client sent too long URI");
|
|
|
723 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
0
|
724 return;
|
|
|
725 }
|
|
|
726 }
|
|
|
727 }
|
|
|
728 }
|
|
|
729
|
|
|
730
|
|
50
|
731 static void
|
|
|
732 ngx_http_process_request_headers(ngx_event_t *rev)
|
|
0
|
733 {
|
|
56
|
734 ssize_t n;
|
|
|
735 ngx_int_t rc, rv;
|
|
|
736 ngx_uint_t key;
|
|
|
737 ngx_str_t header;
|
|
58
|
738 ngx_table_elt_t *h;
|
|
56
|
739 ngx_connection_t *c;
|
|
|
740 ngx_http_header_t *hh;
|
|
|
741 ngx_http_request_t *r;
|
|
60
|
742 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
743 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
744
|
|
|
745 c = rev->data;
|
|
|
746 r = c->data;
|
|
|
747
|
|
|
748 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
749 "http process request header line");
|
|
|
750
|
|
|
751 if (rev->timedout) {
|
|
54
|
752 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
753 c->timedout = 1;
|
|
|
754 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
755 return;
|
|
|
756 }
|
|
|
757
|
|
56
|
758 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
60
|
759 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
56
|
760 hh = (ngx_http_header_t *) cmcf->headers_in_hash.buckets;
|
|
|
761
|
|
0
|
762 rc = NGX_AGAIN;
|
|
|
763
|
|
|
764 for ( ;; ) {
|
|
|
765
|
|
|
766 if (rc == NGX_AGAIN) {
|
|
|
767
|
|
|
768 if (r->header_in->pos == r->header_in->end) {
|
|
|
769
|
|
|
770 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
771
|
|
|
772 if (rv == NGX_ERROR) {
|
|
|
773 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
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);
|
|
0
|
792 return;
|
|
|
793 }
|
|
|
794 }
|
|
|
795
|
|
|
796 n = ngx_http_read_request_header(r);
|
|
|
797
|
|
|
798 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
799 return;
|
|
|
800 }
|
|
|
801 }
|
|
|
802
|
|
|
803 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
|
804
|
|
|
805 if (rc == NGX_OK) {
|
|
|
806
|
|
60
|
807 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
|
52
|
808
|
|
|
809 /* there was error while a header line parsing */
|
|
|
810
|
|
|
811 header.len = r->header_end - r->header_name_start;
|
|
|
812 header.data = r->header_name_start;
|
|
|
813
|
|
54
|
814 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
815 "client sent invalid header line: \"%V\"",
|
|
52
|
816 &header);
|
|
|
817 continue;
|
|
|
818 }
|
|
|
819
|
|
0
|
820 /* a header line has been parsed successfully */
|
|
|
821
|
|
50
|
822 h = ngx_list_push(&r->headers_in.headers);
|
|
|
823 if (h == NULL) {
|
|
0
|
824 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
825 return;
|
|
|
826 }
|
|
|
827
|
|
56
|
828 h->hash = r->header_hash;
|
|
|
829
|
|
0
|
830 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
831 h->key.data = r->header_name_start;
|
|
|
832 h->key.data[h->key.len] = '\0';
|
|
|
833
|
|
|
834 h->value.len = r->header_end - r->header_start;
|
|
|
835 h->value.data = r->header_start;
|
|
|
836 h->value.data[h->value.len] = '\0';
|
|
|
837
|
|
58
|
838 key = h->hash % cmcf->headers_in_hash.hash_size;
|
|
|
839
|
|
|
840 if (hh[key].name.len == h->key.len
|
|
|
841 && ngx_strcasecmp(hh[key].name.data, h->key.data) == 0)
|
|
0
|
842 {
|
|
58
|
843 if (hh[key].handler(r, h, hh[key].offset) != NGX_OK) {
|
|
0
|
844 return;
|
|
|
845 }
|
|
|
846 }
|
|
|
847
|
|
|
848 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
849 "http header: \"%V: %V\"",
|
|
|
850 &h->key, &h->value);
|
|
0
|
851
|
|
|
852 continue;
|
|
54
|
853 }
|
|
|
854
|
|
|
855 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
0
|
856
|
|
|
857 /* a whole header has been parsed successfully */
|
|
|
858
|
|
|
859 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
860 "http header done");
|
|
|
861
|
|
24
|
862 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
863
|
|
0
|
864 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
865
|
|
|
866 rc = ngx_http_process_request_header(r);
|
|
|
867
|
|
|
868 if (rc != NGX_OK) {
|
|
|
869 return;
|
|
|
870 }
|
|
|
871
|
|
|
872 if (rev->timer_set) {
|
|
|
873 ngx_del_timer(rev);
|
|
|
874 }
|
|
|
875
|
|
|
876 #if (NGX_STAT_STUB)
|
|
110
|
877 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
878 r->stat_reading = 0;
|
|
110
|
879 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
0
|
880 r->stat_writing = 1;
|
|
|
881 #endif
|
|
|
882
|
|
58
|
883 rev->handler = ngx_http_request_handler;
|
|
|
884 c->write->handler = ngx_http_request_handler;
|
|
|
885 r->read_event_handler = ngx_http_block_read;
|
|
|
886
|
|
0
|
887 ngx_http_handler(r);
|
|
86
|
888
|
|
0
|
889 return;
|
|
54
|
890 }
|
|
|
891
|
|
|
892 if (rc == NGX_AGAIN) {
|
|
|
893
|
|
|
894 /* a header line parsing is still not complete */
|
|
|
895
|
|
|
896 continue;
|
|
0
|
897 }
|
|
|
898
|
|
54
|
899 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
|
900
|
|
|
901 header.len = r->header_end - r->header_name_start;
|
|
|
902 header.data = r->header_name_start;
|
|
|
903 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
904 "client sent invalid header line: \"%V\\r...\"",
|
|
|
905 &header);
|
|
|
906 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
907 return;
|
|
0
|
908 }
|
|
|
909 }
|
|
|
910
|
|
|
911
|
|
50
|
912 static ssize_t
|
|
|
913 ngx_http_read_request_header(ngx_http_request_t *r)
|
|
0
|
914 {
|
|
|
915 ssize_t n;
|
|
|
916 ngx_event_t *rev;
|
|
|
917 ngx_http_core_srv_conf_t *cscf;
|
|
|
918
|
|
|
919 rev = r->connection->read;
|
|
|
920
|
|
|
921 n = r->header_in->last - r->header_in->pos;
|
|
|
922
|
|
|
923 if (n > 0) {
|
|
|
924 return n;
|
|
|
925 }
|
|
|
926
|
|
72
|
927 if (rev->ready) {
|
|
|
928 n = r->connection->recv(r->connection, r->header_in->last,
|
|
|
929 r->header_in->end - r->header_in->last);
|
|
|
930 } else {
|
|
|
931 n = NGX_AGAIN;
|
|
0
|
932 }
|
|
|
933
|
|
|
934 if (n == NGX_AGAIN) {
|
|
|
935 if (!r->header_timeout_set) {
|
|
|
936 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
937 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
938 r->header_timeout_set = 1;
|
|
|
939 }
|
|
|
940
|
|
|
941 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
942 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
943 return NGX_ERROR;
|
|
|
944 }
|
|
|
945
|
|
|
946 return NGX_AGAIN;
|
|
|
947 }
|
|
|
948
|
|
|
949 if (n == 0) {
|
|
|
950 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
951 "client closed prematurely connection");
|
|
|
952 }
|
|
|
953
|
|
|
954 if (n == 0 || n == NGX_ERROR) {
|
|
|
955 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
956 return NGX_ERROR;
|
|
|
957 }
|
|
|
958
|
|
|
959 r->header_in->last += n;
|
|
|
960
|
|
|
961 return n;
|
|
|
962 }
|
|
|
963
|
|
|
964
|
|
50
|
965 static ngx_int_t
|
|
|
966 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
967 ngx_uint_t request_line)
|
|
0
|
968 {
|
|
|
969 u_char *old, *new;
|
|
|
970 ngx_buf_t *b;
|
|
|
971 ngx_http_connection_t *hc;
|
|
|
972 ngx_http_core_srv_conf_t *cscf;
|
|
|
973
|
|
|
974 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
975 "http alloc large header buffer");
|
|
|
976
|
|
|
977 if (request_line && r->state == 0) {
|
|
|
978
|
|
|
979 /* the client fills up the buffer with "\r\n" */
|
|
|
980
|
|
24
|
981 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
982
|
|
0
|
983 r->header_in->pos = r->header_in->start;
|
|
|
984 r->header_in->last = r->header_in->start;
|
|
|
985
|
|
|
986 return NGX_OK;
|
|
|
987 }
|
|
|
988
|
|
|
989 old = request_line ? r->request_start : r->header_name_start;
|
|
|
990
|
|
|
991 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
992
|
|
|
993 if (r->state != 0
|
|
|
994 && (size_t) (r->header_in->pos - old)
|
|
|
995 >= cscf->large_client_header_buffers.size)
|
|
|
996 {
|
|
|
997 return NGX_DECLINED;
|
|
|
998 }
|
|
|
999
|
|
|
1000 hc = r->http_connection;
|
|
|
1001
|
|
|
1002 if (hc->nfree) {
|
|
|
1003 b = hc->free[--hc->nfree];
|
|
|
1004
|
|
|
1005 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1006 "http large header free: %p %uz",
|
|
0
|
1007 b->pos, b->end - b->last);
|
|
|
1008
|
|
|
1009 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
1010
|
|
|
1011 if (hc->busy == NULL) {
|
|
|
1012 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
1013 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1014 if (hc->busy == NULL) {
|
|
|
1015 return NGX_ERROR;
|
|
|
1016 }
|
|
|
1017 }
|
|
|
1018
|
|
|
1019 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
1020 cscf->large_client_header_buffers.size);
|
|
|
1021 if (b == NULL) {
|
|
|
1022 return NGX_ERROR;
|
|
|
1023 }
|
|
|
1024
|
|
|
1025 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1026 "http large header alloc: %p %uz",
|
|
0
|
1027 b->pos, b->end - b->last);
|
|
|
1028
|
|
|
1029 } else {
|
|
|
1030 return NGX_DECLINED;
|
|
|
1031 }
|
|
|
1032
|
|
|
1033 hc->busy[hc->nbusy++] = b;
|
|
|
1034
|
|
|
1035 if (r->state == 0) {
|
|
|
1036 /*
|
|
|
1037 * r->state == 0 means that a header line was parsed successfully
|
|
|
1038 * and we do not need to copy incomplete header line and
|
|
|
1039 * to relocate the parser header pointers
|
|
|
1040 */
|
|
|
1041
|
|
24
|
1042 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1043
|
|
0
|
1044 r->header_in = b;
|
|
|
1045
|
|
|
1046 return NGX_OK;
|
|
|
1047 }
|
|
|
1048
|
|
|
1049 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1050 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1051
|
|
24
|
1052 r->request_length += old - r->header_in->start;
|
|
|
1053
|
|
0
|
1054 new = b->start;
|
|
|
1055
|
|
|
1056 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1057
|
|
|
1058 b->pos = new + (r->header_in->pos - old);
|
|
|
1059 b->last = new + (r->header_in->pos - old);
|
|
|
1060
|
|
|
1061 if (request_line) {
|
|
|
1062 r->request_start = new;
|
|
|
1063
|
|
|
1064 if (r->request_end) {
|
|
|
1065 r->request_end = new + (r->request_end - old);
|
|
|
1066 }
|
|
|
1067
|
|
|
1068 r->method_end = new + (r->method_end - old);
|
|
|
1069
|
|
|
1070 r->uri_start = new + (r->uri_start - old);
|
|
|
1071 r->uri_end = new + (r->uri_end - old);
|
|
|
1072
|
|
|
1073 if (r->schema_start) {
|
|
|
1074 r->schema_start = new + (r->schema_start - old);
|
|
|
1075 r->schema_end = new + (r->schema_end - old);
|
|
|
1076 }
|
|
|
1077
|
|
|
1078 if (r->host_start) {
|
|
|
1079 r->host_start = new + (r->host_start - old);
|
|
|
1080 r->host_end = new + (r->host_end - old);
|
|
|
1081 }
|
|
|
1082
|
|
|
1083 if (r->port_start) {
|
|
|
1084 r->port_start = new + (r->port_start - old);
|
|
|
1085 r->port_end = new + (r->port_end - old);
|
|
|
1086 }
|
|
|
1087
|
|
|
1088 if (r->uri_ext) {
|
|
|
1089 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1090 }
|
|
|
1091
|
|
|
1092 if (r->args_start) {
|
|
|
1093 r->args_start = new + (r->args_start - old);
|
|
|
1094 }
|
|
|
1095
|
|
|
1096 } else {
|
|
|
1097 r->header_name_start = new;
|
|
|
1098 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1099 r->header_start = new + (r->header_start - old);
|
|
|
1100 r->header_end = new + (r->header_end - old);
|
|
|
1101 }
|
|
|
1102
|
|
|
1103 r->header_in = b;
|
|
|
1104
|
|
|
1105 return NGX_OK;
|
|
|
1106 }
|
|
|
1107
|
|
|
1108
|
|
50
|
1109 static ngx_int_t
|
|
58
|
1110 ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1111 ngx_uint_t offset)
|
|
|
1112 {
|
|
|
1113 ngx_table_elt_t **ph;
|
|
|
1114
|
|
|
1115 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1116
|
|
|
1117 if (*ph == NULL) {
|
|
|
1118 *ph = h;
|
|
|
1119 }
|
|
|
1120
|
|
|
1121 return NGX_OK;
|
|
|
1122 }
|
|
|
1123
|
|
|
1124
|
|
|
1125 static ngx_int_t
|
|
72
|
1126 ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1127 ngx_uint_t offset)
|
|
|
1128 {
|
|
|
1129 ngx_table_elt_t **ph;
|
|
|
1130
|
|
|
1131 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1132
|
|
|
1133 if (*ph == NULL) {
|
|
|
1134 *ph = h;
|
|
|
1135 return NGX_OK;
|
|
|
1136 }
|
|
|
1137
|
|
|
1138 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1139 "client sent duplicate header line: \"%V: %V\"",
|
|
|
1140 &h->key, &h->value);
|
|
|
1141
|
|
|
1142 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1143
|
|
|
1144 return NGX_ERROR;
|
|
|
1145 }
|
|
|
1146
|
|
|
1147
|
|
|
1148 static ngx_int_t
|
|
58
|
1149 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1150 ngx_uint_t offset)
|
|
|
1151 {
|
|
|
1152 ngx_table_elt_t **cookie;
|
|
|
1153
|
|
|
1154 cookie = ngx_array_push(&r->headers_in.cookies);
|
|
72
|
1155 if (cookie) {
|
|
|
1156 *cookie = h;
|
|
|
1157 return NGX_OK;
|
|
58
|
1158 }
|
|
|
1159
|
|
72
|
1160 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1161
|
|
|
1162 return NGX_ERROR;
|
|
58
|
1163 }
|
|
|
1164
|
|
|
1165
|
|
|
1166 static ngx_int_t
|
|
50
|
1167 ngx_http_process_request_header(ngx_http_request_t *r)
|
|
0
|
1168 {
|
|
54
|
1169 size_t len;
|
|
|
1170 u_char *ua, *user_agent, ch;
|
|
|
1171 ngx_http_core_srv_conf_t *cscf;
|
|
0
|
1172
|
|
|
1173 if (r->headers_in.host) {
|
|
|
1174 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
|
26
|
1175 ch = r->headers_in.host->value.data[len];
|
|
|
1176
|
|
|
1177 if (ch == ':') {
|
|
0
|
1178 break;
|
|
|
1179 }
|
|
26
|
1180
|
|
|
1181 r->headers_in.host->value.data[len] = ngx_tolower(ch);
|
|
0
|
1182 }
|
|
54
|
1183
|
|
58
|
1184 if (r->headers_in.host->value.data[len - 1] == '.') {
|
|
|
1185 len--;
|
|
|
1186 }
|
|
|
1187
|
|
0
|
1188 r->headers_in.host_name_len = len;
|
|
|
1189
|
|
26
|
1190 if (ngx_http_find_virtual_server(r) != NGX_OK) {
|
|
54
|
1191 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1192 "client sent invalid \"Host\" header");
|
|
|
1193
|
|
|
1194 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1195
|
|
|
1196 if (cscf->restrict_host_names == NGX_HTTP_RESTRICT_HOST_CLOSE) {
|
|
|
1197 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1198 return NGX_ERROR;
|
|
|
1199 }
|
|
|
1200
|
|
|
1201 ngx_http_finalize_request(r, NGX_HTTP_INVALID_HOST);
|
|
|
1202 return NGX_ERROR;
|
|
0
|
1203 }
|
|
|
1204
|
|
|
1205 } else {
|
|
|
1206 if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
54
|
1207 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1208 "client sent HTTP/1.1 request without \"Host\" header");
|
|
|
1209 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1210 return NGX_ERROR;
|
|
0
|
1211 }
|
|
54
|
1212
|
|
0
|
1213 r->headers_in.host_name_len = 0;
|
|
|
1214 }
|
|
|
1215
|
|
|
1216 if (r->headers_in.content_length) {
|
|
|
1217 r->headers_in.content_length_n =
|
|
50
|
1218 ngx_atosz(r->headers_in.content_length->value.data,
|
|
0
|
1219 r->headers_in.content_length->value.len);
|
|
|
1220
|
|
|
1221 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
54
|
1222 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1223 "client sent invalid \"Content-Length\" header");
|
|
130
|
1224 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1225 return NGX_ERROR;
|
|
0
|
1226 }
|
|
|
1227 }
|
|
|
1228
|
|
32
|
1229 if (r->method == NGX_HTTP_POST && r->headers_in.content_length_n == -1) {
|
|
54
|
1230 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1231 "client sent POST method without \"Content-Length\" header");
|
|
130
|
1232 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
|
1233 return NGX_ERROR;
|
|
|
1234 }
|
|
|
1235
|
|
|
1236 if (r->headers_in.transfer_encoding
|
|
|
1237 && ngx_strstr(r->headers_in.transfer_encoding->value.data, "chunked"))
|
|
|
1238 {
|
|
|
1239 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1240 "client sent \"Transfer-Encoding: chunked\" header");
|
|
|
1241 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1242 return NGX_ERROR;
|
|
0
|
1243 }
|
|
|
1244
|
|
|
1245 if (r->plain_http) {
|
|
54
|
1246 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1247 "client sent plain HTTP request to HTTPS port");
|
|
|
1248 ngx_http_finalize_request(r, NGX_HTTP_TO_HTTPS);
|
|
|
1249 return NGX_ERROR;
|
|
0
|
1250 }
|
|
|
1251
|
|
|
1252 if (r->headers_in.connection) {
|
|
|
1253 if (r->headers_in.connection->value.len == 5
|
|
|
1254 && ngx_strcasecmp(r->headers_in.connection->value.data, "close")
|
|
58
|
1255 == 0)
|
|
0
|
1256 {
|
|
|
1257 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1258
|
|
|
1259 } else if (r->headers_in.connection->value.len == 10
|
|
|
1260 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
58
|
1261 "keep-alive") == 0)
|
|
0
|
1262 {
|
|
|
1263 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1264
|
|
|
1265 if (r->headers_in.keep_alive) {
|
|
|
1266 r->headers_in.keep_alive_n =
|
|
50
|
1267 ngx_atotm(r->headers_in.keep_alive->value.data,
|
|
0
|
1268 r->headers_in.keep_alive->value.len);
|
|
|
1269 }
|
|
|
1270 }
|
|
|
1271 }
|
|
|
1272
|
|
|
1273 if (r->headers_in.user_agent) {
|
|
|
1274
|
|
|
1275 /*
|
|
|
1276 * check some widespread browsers while the headers are still
|
|
|
1277 * in CPU cache
|
|
|
1278 */
|
|
|
1279
|
|
|
1280 user_agent = r->headers_in.user_agent->value.data;
|
|
|
1281
|
|
|
1282 ua = (u_char *) ngx_strstr(user_agent, "MSIE");
|
|
|
1283
|
|
|
1284 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
|
1285
|
|
|
1286 r->headers_in.msie = 1;
|
|
|
1287
|
|
|
1288 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
|
1289 r->headers_in.msie4 = 1;
|
|
|
1290 }
|
|
|
1291
|
|
|
1292 #if 0
|
|
|
1293 /* MSIE ignores the SSL "close notify" alert */
|
|
22
|
1294 if (c->ssl) {
|
|
96
|
1295 c->ssl->no_send_shutdown = 1;
|
|
22
|
1296 }
|
|
0
|
1297 #endif
|
|
|
1298 }
|
|
|
1299
|
|
|
1300 if (ngx_strstr(user_agent, "Opera")) {
|
|
|
1301 r->headers_in.opera = 1;
|
|
|
1302 r->headers_in.msie = 0;
|
|
|
1303 r->headers_in.msie4 = 0;
|
|
|
1304 }
|
|
|
1305
|
|
|
1306 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1307
|
|
|
1308 if (ngx_strstr(user_agent, "Gecko/")) {
|
|
|
1309 r->headers_in.gecko = 1;
|
|
|
1310
|
|
|
1311 } else if (ngx_strstr(user_agent, "Konqueror")) {
|
|
|
1312 r->headers_in.konqueror = 1;
|
|
|
1313 }
|
|
|
1314 }
|
|
|
1315 }
|
|
|
1316
|
|
|
1317 return NGX_OK;
|
|
|
1318 }
|
|
|
1319
|
|
|
1320
|
|
50
|
1321 static ngx_int_t
|
|
|
1322 ngx_http_find_virtual_server(ngx_http_request_t *r)
|
|
26
|
1323 {
|
|
|
1324 ngx_int_t rc;
|
|
58
|
1325 ngx_uint_t i, n, key;
|
|
26
|
1326 ngx_http_server_name_t *name;
|
|
56
|
1327 ngx_http_core_loc_conf_t *clcf;
|
|
26
|
1328 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
1329 ngx_http_core_main_conf_t *cmcf;
|
|
26
|
1330
|
|
|
1331 if (r->virtual_names->hash) {
|
|
|
1332 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
1333
|
|
|
1334 ngx_http_server_names_hash_key(key,
|
|
|
1335 r->headers_in.host->value.data,
|
|
|
1336 r->headers_in.host_name_len,
|
|
|
1337 cmcf->server_names_hash);
|
|
|
1338
|
|
|
1339 name = r->virtual_names->hash[key].elts;
|
|
|
1340 n = r->virtual_names->hash[key].nelts;
|
|
|
1341
|
|
|
1342 } else {
|
|
|
1343 name = r->virtual_names->names.elts;
|
|
|
1344 n = r->virtual_names->names.nelts;
|
|
|
1345 }
|
|
|
1346
|
|
|
1347 for (i = 0; i < n; i++) {
|
|
|
1348
|
|
|
1349 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1350 "server name: %V", &name[i].name);
|
|
|
1351
|
|
|
1352 if (r->headers_in.host_name_len != name[i].name.len) {
|
|
|
1353 continue;
|
|
|
1354 }
|
|
|
1355
|
|
|
1356 rc = ngx_strncmp(r->headers_in.host->value.data,
|
|
|
1357 name[i].name.data, name[i].name.len);
|
|
|
1358
|
|
|
1359 if (rc == 0) {
|
|
|
1360 r->server_name = name[i].name;
|
|
58
|
1361 goto found;
|
|
26
|
1362 }
|
|
|
1363
|
|
|
1364 if (rc < 0) {
|
|
126
|
1365 /* the server names are lexicographically sorted */
|
|
26
|
1366 break;
|
|
|
1367 }
|
|
|
1368 }
|
|
|
1369
|
|
58
|
1370 if (r->virtual_names->wildcards.nelts) {
|
|
26
|
1371
|
|
|
1372 name = r->virtual_names->wildcards.elts;
|
|
|
1373 for (i = 0; i < r->virtual_names->wildcards.nelts; i++) {
|
|
|
1374
|
|
|
1375 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1376 "server name: %V", &name[i].name);
|
|
|
1377
|
|
|
1378 if (r->headers_in.host_name_len <= name[i].name.len) {
|
|
|
1379 continue;
|
|
|
1380 }
|
|
|
1381
|
|
|
1382 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1383 "server name: %s",
|
|
|
1384 r->headers_in.host->value.data
|
|
|
1385 + (r->headers_in.host_name_len - name[i].name.len));
|
|
|
1386
|
|
|
1387 if (ngx_strncmp(r->headers_in.host->value.data
|
|
|
1388 + (r->headers_in.host_name_len - name[i].name.len),
|
|
|
1389 name[i].name.data, name[i].name.len) == 0)
|
|
|
1390 {
|
|
|
1391 r->server_name.len = r->headers_in.host_name_len;
|
|
|
1392 r->server_name.data = r->headers_in.host->value.data;
|
|
|
1393
|
|
58
|
1394 goto found;
|
|
26
|
1395 }
|
|
|
1396 }
|
|
|
1397 }
|
|
|
1398
|
|
58
|
1399 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1400
|
|
|
1401 if (cscf->restrict_host_names == NGX_HTTP_RESTRICT_HOST_OFF) {
|
|
26
|
1402 return NGX_OK;
|
|
|
1403 }
|
|
|
1404
|
|
58
|
1405 return NGX_ERROR;
|
|
|
1406
|
|
|
1407 found:
|
|
|
1408
|
|
|
1409 r->srv_conf = name[i].core_srv_conf->ctx->srv_conf;
|
|
|
1410 r->loc_conf = name[i].core_srv_conf->ctx->loc_conf;
|
|
|
1411
|
|
|
1412 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1413 r->connection->log->file = clcf->err_log->file;
|
|
|
1414
|
|
|
1415 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
1416 r->connection->log->log_level = clcf->err_log->log_level;
|
|
26
|
1417 }
|
|
|
1418
|
|
|
1419 return NGX_OK;
|
|
|
1420 }
|
|
|
1421
|
|
|
1422
|
|
58
|
1423 static void
|
|
|
1424 ngx_http_request_handler(ngx_event_t *ev)
|
|
|
1425 {
|
|
|
1426 ngx_connection_t *c;
|
|
|
1427 ngx_http_request_t *r;
|
|
|
1428
|
|
|
1429 c = ev->data;
|
|
|
1430 r = c->data;
|
|
|
1431
|
|
|
1432 if (ev->write) {
|
|
|
1433 r->write_event_handler(r);
|
|
|
1434
|
|
|
1435 } else {
|
|
|
1436 r->read_event_handler(r);
|
|
|
1437 }
|
|
|
1438 }
|
|
|
1439
|
|
|
1440
|
|
50
|
1441 void
|
|
58
|
1442 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
1443 {
|
|
58
|
1444 ngx_http_request_t *pr;
|
|
0
|
1445 ngx_http_core_loc_conf_t *clcf;
|
|
|
1446
|
|
58
|
1447 if (rc == NGX_DONE) {
|
|
118
|
1448 /* the request pool may be already destroyed */
|
|
58
|
1449 return;
|
|
|
1450 }
|
|
|
1451
|
|
132
|
1452 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1453 "http finalize request: %d, \"%V?%V\"",
|
|
|
1454 rc, &r->uri, &r->args);
|
|
|
1455
|
|
|
1456 if (rc == NGX_ERROR || r->connection->error) {
|
|
118
|
1457 ngx_http_close_request(r, 0);
|
|
0
|
1458 return;
|
|
|
1459 }
|
|
|
1460
|
|
118
|
1461 if (rc >= NGX_HTTP_SPECIAL_RESPONSE || rc == NGX_HTTP_NO_CONTENT) {
|
|
|
1462
|
|
|
1463 if (r->main == r) {
|
|
|
1464 if (r->connection->read->timer_set) {
|
|
|
1465 ngx_del_timer(r->connection->read);
|
|
|
1466 }
|
|
|
1467
|
|
|
1468 if (r->connection->write->timer_set) {
|
|
|
1469 ngx_del_timer(r->connection->write);
|
|
|
1470 }
|
|
|
1471 }
|
|
|
1472
|
|
|
1473 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1474
|
|
|
1475 return;
|
|
|
1476 }
|
|
|
1477
|
|
|
1478 if (r->main != r || rc == NGX_AGAIN) {
|
|
74
|
1479 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
|
1480 return;
|
|
|
1481 }
|
|
58
|
1482 }
|
|
|
1483
|
|
|
1484 r->done = 1;
|
|
|
1485
|
|
|
1486 if (r != r->connection->data) {
|
|
132
|
1487 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1488 "http finalize non-active request: \"%V?%V\"",
|
|
|
1489 &r->uri, &r->args);
|
|
58
|
1490 return;
|
|
|
1491 }
|
|
|
1492
|
|
118
|
1493 if (r->main != r) {
|
|
58
|
1494
|
|
|
1495 pr = r->parent;
|
|
|
1496
|
|
132
|
1497 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1498 "http parent request: \"%V?%V\"", &pr->uri, &pr->args);
|
|
76
|
1499
|
|
58
|
1500 if (rc != NGX_AGAIN) {
|
|
|
1501 pr->connection->data = pr;
|
|
|
1502 }
|
|
|
1503
|
|
|
1504 if (pr->postponed) {
|
|
|
1505
|
|
132
|
1506 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1507 "http request: \"%V?%V\" has postponed",
|
|
|
1508 &pr->uri, &pr->args);
|
|
76
|
1509
|
|
58
|
1510 if (rc != NGX_AGAIN && pr->postponed->request == r) {
|
|
|
1511 pr->postponed = pr->postponed->next;
|
|
|
1512
|
|
|
1513 if (pr->postponed == NULL) {
|
|
|
1514 return;
|
|
|
1515 }
|
|
|
1516 }
|
|
|
1517
|
|
132
|
1518 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1519 "http request: \"%V?%V\" still has postponed",
|
|
|
1520 &pr->uri, &pr->args);
|
|
|
1521
|
|
|
1522 if (pr->done || pr->postponed->out) {
|
|
|
1523 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1524 "http wake parent request: \"%V?%V\"",
|
|
|
1525 &pr->uri, &pr->args);
|
|
58
|
1526
|
|
|
1527 pr->write_event_handler(pr);
|
|
|
1528 }
|
|
|
1529 }
|
|
|
1530
|
|
|
1531 return;
|
|
|
1532 }
|
|
0
|
1533
|
|
118
|
1534 if (rc == NGX_AGAIN) {
|
|
0
|
1535 return;
|
|
76
|
1536 }
|
|
|
1537
|
|
118
|
1538 if (r->out) {
|
|
74
|
1539 (void) ngx_http_set_write_handler(r);
|
|
0
|
1540 return;
|
|
|
1541 }
|
|
|
1542
|
|
126
|
1543 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1544
|
|
|
1545 if (clcf->post_action.data) {
|
|
|
1546 ngx_http_internal_redirect(r, &clcf->post_action, NULL);
|
|
|
1547 return;
|
|
|
1548 }
|
|
|
1549
|
|
0
|
1550 if (r->connection->read->timer_set) {
|
|
|
1551 ngx_del_timer(r->connection->read);
|
|
|
1552 }
|
|
|
1553
|
|
|
1554 if (r->connection->write->timer_set) {
|
|
|
1555 r->connection->write->delayed = 0;
|
|
|
1556 ngx_del_timer(r->connection->write);
|
|
|
1557 }
|
|
|
1558
|
|
|
1559 if (r->connection->read->pending_eof) {
|
|
22
|
1560 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1561 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log,
|
|
|
1562 r->connection->read->kq_errno,
|
|
|
1563 "kevent() reported about an closed connection");
|
|
|
1564 #endif
|
|
|
1565 ngx_http_close_request(r, 0);
|
|
|
1566 return;
|
|
|
1567 }
|
|
|
1568
|
|
|
1569 if (!ngx_terminate
|
|
|
1570 && !ngx_exiting
|
|
|
1571 && r->keepalive != 0
|
|
|
1572 && clcf->keepalive_timeout > 0)
|
|
|
1573 {
|
|
|
1574 ngx_http_set_keepalive(r);
|
|
|
1575 return;
|
|
|
1576
|
|
|
1577 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
1578 ngx_http_set_lingering_close(r);
|
|
|
1579 return;
|
|
|
1580 }
|
|
|
1581
|
|
|
1582 ngx_http_close_request(r, 0);
|
|
|
1583 }
|
|
|
1584
|
|
|
1585
|
|
74
|
1586 static ngx_int_t
|
|
50
|
1587 ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
0
|
1588 {
|
|
|
1589 ngx_event_t *wev;
|
|
|
1590 ngx_http_core_loc_conf_t *clcf;
|
|
|
1591
|
|
58
|
1592 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
1593
|
|
74
|
1594 r->write_event_handler = ngx_http_writer;
|
|
|
1595
|
|
0
|
1596 wev = r->connection->write;
|
|
|
1597
|
|
|
1598 if (wev->ready && wev->delayed) {
|
|
74
|
1599 return NGX_OK;
|
|
0
|
1600 }
|
|
|
1601
|
|
58
|
1602 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1603 if (!wev->delayed) {
|
|
|
1604 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1605 }
|
|
|
1606
|
|
2
|
1607 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1608 ngx_http_close_request(r, 0);
|
|
74
|
1609 return NGX_ERROR;
|
|
0
|
1610 }
|
|
74
|
1611
|
|
|
1612 return NGX_OK;
|
|
0
|
1613 }
|
|
|
1614
|
|
|
1615
|
|
58
|
1616 static void
|
|
|
1617 ngx_http_writer(ngx_http_request_t *r)
|
|
0
|
1618 {
|
|
|
1619 int rc;
|
|
58
|
1620 ngx_event_t *wev;
|
|
0
|
1621 ngx_connection_t *c;
|
|
|
1622 ngx_http_core_loc_conf_t *clcf;
|
|
|
1623
|
|
58
|
1624 c = r->connection;
|
|
|
1625 wev = c->write;
|
|
|
1626
|
|
132
|
1627 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1628 "http writer handler: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
1629
|
|
|
1630 if (wev->timedout) {
|
|
|
1631 if (!wev->delayed) {
|
|
54
|
1632 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
|
1633 "client timed out");
|
|
|
1634 c->timedout = 1;
|
|
116
|
1635
|
|
118
|
1636 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
1637 return;
|
|
|
1638 }
|
|
|
1639
|
|
|
1640 wev->timedout = 0;
|
|
|
1641 wev->delayed = 0;
|
|
|
1642
|
|
|
1643 if (!wev->ready) {
|
|
102
|
1644 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1645 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1646
|
|
2
|
1647 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1648 ngx_http_close_request(r, 0);
|
|
0
|
1649 }
|
|
|
1650
|
|
|
1651 return;
|
|
|
1652 }
|
|
|
1653
|
|
|
1654 } else {
|
|
|
1655 if (wev->delayed) {
|
|
|
1656 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1657 "http writer delayed");
|
|
|
1658
|
|
102
|
1659 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
2
|
1660
|
|
|
1661 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1662 ngx_http_close_request(r, 0);
|
|
0
|
1663 }
|
|
|
1664
|
|
|
1665 return;
|
|
|
1666 }
|
|
|
1667 }
|
|
|
1668
|
|
132
|
1669 rc = ngx_http_output_filter(r, NULL);
|
|
|
1670
|
|
|
1671 if (c->destroyed) {
|
|
|
1672 return;
|
|
58
|
1673 }
|
|
|
1674
|
|
132
|
1675 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1676 "http writer output filter: %d, \"%V?%V\"",
|
|
|
1677 rc, &r->uri, &r->args);
|
|
0
|
1678
|
|
|
1679 if (rc == NGX_AGAIN) {
|
|
102
|
1680 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1681 if (!wev->ready && !wev->delayed) {
|
|
|
1682 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1683 }
|
|
|
1684
|
|
2
|
1685 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1686 ngx_http_close_request(r, 0);
|
|
0
|
1687 }
|
|
|
1688
|
|
|
1689 return;
|
|
|
1690 }
|
|
|
1691
|
|
132
|
1692 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1693 "http writer done: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
1694
|
|
|
1695 ngx_http_finalize_request(r, rc);
|
|
|
1696 }
|
|
|
1697
|
|
|
1698
|
|
50
|
1699 static void
|
|
58
|
1700 ngx_http_block_read(ngx_http_request_t *r)
|
|
0
|
1701 {
|
|
58
|
1702 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1703 "http read blocked");
|
|
0
|
1704
|
|
|
1705 /* aio does not call this handler */
|
|
|
1706
|
|
58
|
1707 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT)
|
|
|
1708 && r->connection->read->active)
|
|
|
1709 {
|
|
|
1710 if (ngx_del_event(r->connection->read, NGX_READ_EVENT, 0)
|
|
|
1711 == NGX_ERROR)
|
|
|
1712 {
|
|
0
|
1713 ngx_http_close_request(r, 0);
|
|
|
1714 }
|
|
|
1715 }
|
|
|
1716 }
|
|
|
1717
|
|
|
1718
|
|
50
|
1719 ngx_int_t
|
|
|
1720 ngx_http_discard_body(ngx_http_request_t *r)
|
|
0
|
1721 {
|
|
|
1722 ssize_t size;
|
|
|
1723 ngx_event_t *rev;
|
|
|
1724
|
|
102
|
1725 if (r->main != r) {
|
|
70
|
1726 return NGX_OK;
|
|
|
1727 }
|
|
|
1728
|
|
0
|
1729 rev = r->connection->read;
|
|
|
1730
|
|
|
1731 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http set discard body");
|
|
|
1732
|
|
|
1733 if (rev->timer_set) {
|
|
|
1734 ngx_del_timer(rev);
|
|
|
1735 }
|
|
|
1736
|
|
|
1737 if (r->headers_in.content_length_n <= 0) {
|
|
|
1738 return NGX_OK;
|
|
|
1739 }
|
|
|
1740
|
|
86
|
1741 r->discard_body = 1;
|
|
|
1742
|
|
0
|
1743 size = r->header_in->last - r->header_in->pos;
|
|
|
1744
|
|
|
1745 if (size) {
|
|
|
1746 if (r->headers_in.content_length_n > size) {
|
|
|
1747 r->headers_in.content_length_n -= size;
|
|
|
1748
|
|
|
1749 } else {
|
|
|
1750 r->header_in->pos += r->headers_in.content_length_n;
|
|
|
1751 r->headers_in.content_length_n = 0;
|
|
|
1752 return NGX_OK;
|
|
|
1753 }
|
|
|
1754 }
|
|
|
1755
|
|
58
|
1756 r->read_event_handler = ngx_http_read_discarded_body_handler;
|
|
|
1757
|
|
|
1758 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
1759 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1760 }
|
|
|
1761
|
|
|
1762 return ngx_http_read_discarded_body(r);
|
|
|
1763 }
|
|
|
1764
|
|
|
1765
|
|
50
|
1766 static void
|
|
58
|
1767 ngx_http_read_discarded_body_handler(ngx_http_request_t *r)
|
|
0
|
1768 {
|
|
58
|
1769 ngx_int_t rc;
|
|
0
|
1770
|
|
|
1771 rc = ngx_http_read_discarded_body(r);
|
|
|
1772
|
|
|
1773 if (rc == NGX_AGAIN) {
|
|
58
|
1774 if (ngx_handle_read_event(r->connection->read, 0) == NGX_ERROR) {
|
|
0
|
1775 ngx_http_close_request(r, rc);
|
|
|
1776 return;
|
|
|
1777 }
|
|
|
1778 }
|
|
|
1779
|
|
|
1780 if (rc != NGX_OK) {
|
|
|
1781 ngx_http_close_request(r, rc);
|
|
|
1782 }
|
|
|
1783 }
|
|
|
1784
|
|
|
1785
|
|
50
|
1786 static ngx_int_t
|
|
|
1787 ngx_http_read_discarded_body(ngx_http_request_t *r)
|
|
0
|
1788 {
|
|
|
1789 ssize_t size, n;
|
|
|
1790 u_char buffer[NGX_HTTP_DISCARD_BUFFER_SIZE];
|
|
|
1791
|
|
|
1792 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1793 "http read discarded body");
|
|
|
1794
|
|
|
1795 if (r->headers_in.content_length_n == 0) {
|
|
|
1796 return NGX_OK;
|
|
|
1797 }
|
|
|
1798
|
|
|
1799
|
|
|
1800 size = r->headers_in.content_length_n;
|
|
|
1801
|
|
|
1802 if (size > NGX_HTTP_DISCARD_BUFFER_SIZE) {
|
|
|
1803 size = NGX_HTTP_DISCARD_BUFFER_SIZE;
|
|
|
1804 }
|
|
|
1805
|
|
|
1806 n = r->connection->recv(r->connection, buffer, size);
|
|
|
1807
|
|
|
1808 if (n == NGX_ERROR) {
|
|
|
1809
|
|
132
|
1810 r->connection->error = 1;
|
|
0
|
1811
|
|
|
1812 /*
|
|
|
1813 * if a client request body is discarded then we already set
|
|
|
1814 * some HTTP response code for client and we can ignore the error
|
|
|
1815 */
|
|
|
1816
|
|
|
1817 return NGX_OK;
|
|
|
1818 }
|
|
|
1819
|
|
|
1820 if (n == NGX_AGAIN) {
|
|
|
1821 return NGX_AGAIN;
|
|
|
1822 }
|
|
|
1823
|
|
|
1824 r->headers_in.content_length_n -= n;
|
|
|
1825
|
|
|
1826 return NGX_OK;
|
|
|
1827 }
|
|
|
1828
|
|
|
1829
|
|
50
|
1830 static void
|
|
|
1831 ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
0
|
1832 {
|
|
2
|
1833 int tcp_nodelay;
|
|
0
|
1834 ngx_int_t i;
|
|
|
1835 ngx_buf_t *b, *f;
|
|
|
1836 ngx_event_t *rev, *wev;
|
|
|
1837 ngx_connection_t *c;
|
|
|
1838 ngx_http_connection_t *hc;
|
|
|
1839 ngx_http_core_srv_conf_t *cscf;
|
|
|
1840 ngx_http_core_loc_conf_t *clcf;
|
|
|
1841
|
|
|
1842 c = r->connection;
|
|
|
1843 rev = c->read;
|
|
|
1844
|
|
|
1845 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
1846
|
|
32
|
1847 c->log->action = "closing request";
|
|
0
|
1848
|
|
|
1849 hc = r->http_connection;
|
|
|
1850 b = r->header_in;
|
|
|
1851
|
|
|
1852 if (b->pos < b->last) {
|
|
|
1853
|
|
|
1854 /* the pipelined request */
|
|
|
1855
|
|
|
1856 if (b != c->buffer) {
|
|
|
1857
|
|
4
|
1858 /*
|
|
|
1859 * If the large header buffers were allocated while the previous
|
|
|
1860 * request processing then we do not use c->buffer for
|
|
|
1861 * the pipelined request (see ngx_http_init_request()).
|
|
126
|
1862 *
|
|
4
|
1863 * Now we would move the large header buffers to the free list.
|
|
|
1864 */
|
|
0
|
1865
|
|
|
1866 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1867
|
|
|
1868 if (hc->free == NULL) {
|
|
|
1869 hc->free = ngx_palloc(c->pool,
|
|
|
1870 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1871
|
|
|
1872 if (hc->free == NULL) {
|
|
26
|
1873 ngx_http_close_request(r, 0);
|
|
0
|
1874 return;
|
|
|
1875 }
|
|
|
1876 }
|
|
|
1877
|
|
|
1878 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
1879 f = hc->busy[i];
|
|
|
1880 hc->free[hc->nfree++] = f;
|
|
|
1881 f->pos = f->start;
|
|
|
1882 f->last = f->start;
|
|
|
1883 }
|
|
|
1884
|
|
|
1885 hc->busy[0] = b;
|
|
|
1886 hc->nbusy = 1;
|
|
|
1887 }
|
|
|
1888 }
|
|
|
1889
|
|
26
|
1890 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1891
|
|
118
|
1892 ngx_http_request_done(r, 0);
|
|
|
1893
|
|
0
|
1894 c->data = hc;
|
|
|
1895
|
|
|
1896 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
1897
|
|
58
|
1898 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
1899 ngx_http_close_connection(c);
|
|
|
1900 return;
|
|
|
1901 }
|
|
|
1902
|
|
|
1903 wev = c->write;
|
|
58
|
1904 wev->handler = ngx_http_empty_handler;
|
|
0
|
1905
|
|
|
1906 if (b->pos < b->last) {
|
|
|
1907
|
|
|
1908 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
1909
|
|
116
|
1910 #if (NGX_STAT_STUB)
|
|
|
1911 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
1912 #endif
|
|
|
1913
|
|
0
|
1914 hc->pipeline = 1;
|
|
32
|
1915 c->log->action = "reading client pipelined request line";
|
|
116
|
1916
|
|
0
|
1917 ngx_http_init_request(rev);
|
|
|
1918 return;
|
|
|
1919 }
|
|
|
1920
|
|
|
1921 hc->pipeline = 0;
|
|
|
1922
|
|
4
|
1923 /*
|
|
|
1924 * To keep a memory footprint as small as possible for an idle
|
|
|
1925 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
1926 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
1927 * The large header buffers are always allocated outside the c->pool and
|
|
|
1928 * are freed too.
|
|
|
1929 */
|
|
|
1930
|
|
0
|
1931 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
1932 hc->request = NULL;
|
|
|
1933 }
|
|
|
1934
|
|
|
1935 b = c->buffer;
|
|
|
1936
|
|
|
1937 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
1938
|
|
|
1939 /*
|
|
|
1940 * the special note for ngx_http_keepalive_handler() that
|
|
|
1941 * c->buffer's memory was freed
|
|
|
1942 */
|
|
|
1943
|
|
0
|
1944 b->pos = NULL;
|
|
|
1945
|
|
|
1946 } else {
|
|
|
1947 b->pos = b->start;
|
|
|
1948 b->last = b->start;
|
|
|
1949 }
|
|
|
1950
|
|
10
|
1951 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
1952 hc->free, hc->nfree);
|
|
|
1953
|
|
|
1954 if (hc->free) {
|
|
|
1955 for (i = 0; i < hc->nfree; i++) {
|
|
|
1956 ngx_pfree(c->pool, hc->free[i]);
|
|
|
1957 hc->free[i] = NULL;
|
|
|
1958 }
|
|
|
1959
|
|
|
1960 hc->nfree = 0;
|
|
|
1961 }
|
|
|
1962
|
|
10
|
1963 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
1964 hc->busy, hc->nbusy);
|
|
|
1965
|
|
|
1966 if (hc->busy) {
|
|
|
1967 for (i = 0; i < hc->nbusy; i++) {
|
|
|
1968 ngx_pfree(c->pool, hc->busy[i]);
|
|
|
1969 hc->busy[i] = NULL;
|
|
|
1970 }
|
|
|
1971
|
|
|
1972 hc->nbusy = 0;
|
|
|
1973 }
|
|
|
1974
|
|
58
|
1975 rev->handler = ngx_http_keepalive_handler;
|
|
0
|
1976
|
|
132
|
1977 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
|
1978 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
1979 ngx_http_close_connection(c);
|
|
|
1980 return;
|
|
0
|
1981 }
|
|
|
1982 }
|
|
|
1983
|
|
32
|
1984 c->log->action = "keepalive";
|
|
0
|
1985
|
|
|
1986 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
50
|
1987 if (ngx_tcp_push(c->fd) == -1) {
|
|
0
|
1988 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
1989 ngx_http_close_connection(c);
|
|
|
1990 return;
|
|
|
1991 }
|
|
2
|
1992
|
|
0
|
1993 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
1994 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
1995
|
|
|
1996 } else {
|
|
22
|
1997 tcp_nodelay = 1;
|
|
|
1998 }
|
|
|
1999
|
|
32
|
2000 if (tcp_nodelay
|
|
|
2001 && clcf->tcp_nodelay
|
|
|
2002 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
2003 {
|
|
22
|
2004 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
2005
|
|
|
2006 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
|
2007 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
|
2008 {
|
|
|
2009 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2010 "setsockopt(TCP_NODELAY) failed");
|
|
|
2011 ngx_http_close_connection(c);
|
|
|
2012 return;
|
|
2
|
2013 }
|
|
22
|
2014
|
|
32
|
2015 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
2016 }
|
|
|
2017
|
|
|
2018 #if 0
|
|
4
|
2019 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
2020 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
2021 #endif
|
|
|
2022
|
|
|
2023 if (rev->ready) {
|
|
|
2024 ngx_http_keepalive_handler(rev);
|
|
|
2025 }
|
|
|
2026 }
|
|
|
2027
|
|
|
2028
|
|
50
|
2029 static void
|
|
|
2030 ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
0
|
2031 {
|
|
50
|
2032 size_t size;
|
|
|
2033 ssize_t n;
|
|
|
2034 ngx_buf_t *b;
|
|
|
2035 ngx_connection_t *c;
|
|
0
|
2036
|
|
|
2037 c = rev->data;
|
|
|
2038
|
|
|
2039 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
2040
|
|
|
2041 if (rev->timedout) {
|
|
|
2042 ngx_http_close_connection(c);
|
|
|
2043 return;
|
|
|
2044 }
|
|
|
2045
|
|
18
|
2046 #if (NGX_HAVE_KQUEUE)
|
|
0
|
2047
|
|
4
|
2048 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
130
|
2049 if (rev->pending_eof
|
|
|
2050 /* FreeBSD 5.x-6.x may erroneously report ETIMEDOUT */
|
|
|
2051 && rev->kq_errno != NGX_ETIMEDOUT)
|
|
|
2052 {
|
|
32
|
2053 c->log->handler = NULL;
|
|
0
|
2054 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
2055 "kevent() reported that client %V closed "
|
|
32
|
2056 "keepalive connection", &c->addr_text);
|
|
22
|
2057 #if (NGX_HTTP_SSL)
|
|
|
2058 if (c->ssl) {
|
|
96
|
2059 c->ssl->no_send_shutdown = 1;
|
|
22
|
2060 }
|
|
|
2061 #endif
|
|
0
|
2062 ngx_http_close_connection(c);
|
|
|
2063 return;
|
|
|
2064 }
|
|
|
2065 }
|
|
|
2066
|
|
|
2067 #endif
|
|
|
2068
|
|
|
2069 b = c->buffer;
|
|
|
2070 size = b->end - b->start;
|
|
|
2071
|
|
|
2072 if (b->pos == NULL) {
|
|
4
|
2073
|
|
|
2074 /*
|
|
|
2075 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
2076 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
2077 * to keep the buffer size.
|
|
|
2078 */
|
|
|
2079
|
|
50
|
2080 b->pos = ngx_palloc(c->pool, size);
|
|
|
2081 if (b->pos == NULL) {
|
|
0
|
2082 ngx_http_close_connection(c);
|
|
|
2083 return;
|
|
|
2084 }
|
|
|
2085
|
|
|
2086 b->start = b->pos;
|
|
|
2087 b->last = b->pos;
|
|
|
2088 b->end = b->pos + size;
|
|
|
2089 }
|
|
|
2090
|
|
|
2091 /*
|
|
|
2092 * MSIE closes a keepalive connection with RST flag
|
|
|
2093 * so we ignore ECONNRESET here.
|
|
|
2094 */
|
|
|
2095
|
|
|
2096 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
2097 ngx_set_socket_errno(0);
|
|
|
2098
|
|
|
2099 n = c->recv(c, b->last, size);
|
|
|
2100 c->log_error = NGX_ERROR_INFO;
|
|
|
2101
|
|
|
2102 if (n == NGX_AGAIN) {
|
|
58
|
2103 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
24
|
2104 ngx_http_close_connection(c);
|
|
|
2105 }
|
|
|
2106
|
|
0
|
2107 return;
|
|
|
2108 }
|
|
|
2109
|
|
|
2110 if (n == NGX_ERROR) {
|
|
|
2111 ngx_http_close_connection(c);
|
|
|
2112 return;
|
|
|
2113 }
|
|
|
2114
|
|
32
|
2115 c->log->handler = NULL;
|
|
0
|
2116
|
|
|
2117 if (n == 0) {
|
|
|
2118 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
2119 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
2120 ngx_http_close_connection(c);
|
|
|
2121 return;
|
|
|
2122 }
|
|
|
2123
|
|
|
2124 b->last += n;
|
|
32
|
2125
|
|
116
|
2126 #if (NGX_STAT_STUB)
|
|
|
2127 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
2128 #endif
|
|
|
2129
|
|
32
|
2130 c->log->handler = ngx_http_log_error;
|
|
|
2131 c->log->action = "reading client request line";
|
|
0
|
2132
|
|
|
2133 ngx_http_init_request(rev);
|
|
|
2134 }
|
|
|
2135
|
|
|
2136
|
|
50
|
2137 static void
|
|
|
2138 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
126
|
2139 {
|
|
0
|
2140 ngx_event_t *rev, *wev;
|
|
|
2141 ngx_connection_t *c;
|
|
|
2142 ngx_http_core_loc_conf_t *clcf;
|
|
|
2143
|
|
|
2144 c = r->connection;
|
|
|
2145
|
|
|
2146 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2147
|
|
|
2148 rev = c->read;
|
|
58
|
2149 rev->handler = ngx_http_lingering_close_handler;
|
|
0
|
2150
|
|
106
|
2151 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
|
0
|
2152 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2153
|
|
58
|
2154 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
2155 ngx_http_close_request(r, 0);
|
|
|
2156 return;
|
|
|
2157 }
|
|
|
2158
|
|
|
2159 wev = c->write;
|
|
58
|
2160 wev->handler = ngx_http_empty_handler;
|
|
0
|
2161
|
|
132
|
2162 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
|
2163 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
2164 ngx_http_close_request(r, 0);
|
|
|
2165 return;
|
|
0
|
2166 }
|
|
|
2167 }
|
|
|
2168
|
|
|
2169 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
2170 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2171 ngx_shutdown_socket_n " failed");
|
|
|
2172 ngx_http_close_request(r, 0);
|
|
|
2173 return;
|
|
|
2174 }
|
|
|
2175
|
|
|
2176 if (rev->ready) {
|
|
|
2177 ngx_http_lingering_close_handler(rev);
|
|
|
2178 }
|
|
|
2179 }
|
|
|
2180
|
|
|
2181
|
|
50
|
2182 static void
|
|
|
2183 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
0
|
2184 {
|
|
|
2185 ssize_t n;
|
|
|
2186 ngx_msec_t timer;
|
|
|
2187 ngx_connection_t *c;
|
|
|
2188 ngx_http_request_t *r;
|
|
|
2189 ngx_http_core_loc_conf_t *clcf;
|
|
|
2190 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
2191
|
|
|
2192 c = rev->data;
|
|
|
2193 r = c->data;
|
|
|
2194
|
|
|
2195 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2196 "http lingering close handler");
|
|
|
2197
|
|
|
2198 if (rev->timedout) {
|
|
126
|
2199 c->timedout = 1;
|
|
0
|
2200 ngx_http_close_request(r, 0);
|
|
|
2201 return;
|
|
|
2202 }
|
|
|
2203
|
|
|
2204 timer = r->lingering_time - ngx_time();
|
|
|
2205 if (timer <= 0) {
|
|
|
2206 ngx_http_close_request(r, 0);
|
|
|
2207 return;
|
|
|
2208 }
|
|
|
2209
|
|
|
2210 do {
|
|
|
2211 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
2212
|
|
|
2213 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
2214
|
|
|
2215 if (n == NGX_ERROR || n == 0) {
|
|
|
2216 ngx_http_close_request(r, 0);
|
|
|
2217 return;
|
|
|
2218 }
|
|
|
2219
|
|
|
2220 } while (rev->ready);
|
|
|
2221
|
|
58
|
2222 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
26
|
2223 ngx_http_close_request(r, 0);
|
|
24
|
2224 return;
|
|
|
2225 }
|
|
|
2226
|
|
0
|
2227 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2228
|
|
|
2229 timer *= 1000;
|
|
|
2230
|
|
|
2231 if (timer > clcf->lingering_timeout) {
|
|
|
2232 timer = clcf->lingering_timeout;
|
|
|
2233 }
|
|
|
2234
|
|
|
2235 ngx_add_timer(rev, timer);
|
|
|
2236 }
|
|
|
2237
|
|
|
2238
|
|
50
|
2239 void
|
|
|
2240 ngx_http_empty_handler(ngx_event_t *wev)
|
|
0
|
2241 {
|
|
|
2242 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2243
|
|
|
2244 return;
|
|
|
2245 }
|
|
|
2246
|
|
|
2247
|
|
58
|
2248 void
|
|
|
2249 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
|
2250 {
|
|
|
2251 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
132
|
2252 "http request empty handler");
|
|
58
|
2253
|
|
|
2254 return;
|
|
|
2255 }
|
|
|
2256
|
|
|
2257
|
|
50
|
2258 ngx_int_t
|
|
130
|
2259 ngx_http_send_special(ngx_http_request_t *r, ngx_uint_t flags)
|
|
0
|
2260 {
|
|
|
2261 ngx_buf_t *b;
|
|
|
2262 ngx_chain_t out;
|
|
|
2263
|
|
50
|
2264 b = ngx_calloc_buf(r->pool);
|
|
|
2265 if (b == NULL) {
|
|
0
|
2266 return NGX_ERROR;
|
|
|
2267 }
|
|
|
2268
|
|
130
|
2269 if (flags & NGX_HTTP_LAST) {
|
|
|
2270 b->last_buf = 1;
|
|
|
2271 }
|
|
|
2272
|
|
|
2273 if (flags & NGX_HTTP_FLUSH) {
|
|
|
2274 b->flush = 1;
|
|
|
2275 }
|
|
|
2276
|
|
0
|
2277 out.buf = b;
|
|
|
2278 out.next = NULL;
|
|
|
2279
|
|
|
2280 return ngx_http_output_filter(r, &out);
|
|
|
2281 }
|
|
|
2282
|
|
|
2283
|
|
50
|
2284 void
|
|
58
|
2285 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error)
|
|
0
|
2286 {
|
|
118
|
2287 ngx_connection_t *c;
|
|
|
2288 ngx_http_cleanup_t *cln;
|
|
|
2289
|
|
|
2290 c = r->connection;
|
|
|
2291 r = r->main;
|
|
|
2292
|
|
|
2293 for (cln = r->cleanup; cln; cln = cln->next) {
|
|
|
2294 if (cln->handler) {
|
|
|
2295 cln->handler(cln->data);
|
|
|
2296 }
|
|
|
2297 }
|
|
|
2298
|
|
|
2299 ngx_http_request_done(r, error);
|
|
|
2300 ngx_http_close_connection(c);
|
|
|
2301 }
|
|
|
2302
|
|
|
2303
|
|
|
2304 void
|
|
|
2305 ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error)
|
|
|
2306 {
|
|
|
2307 ngx_log_t *log;
|
|
130
|
2308 ngx_uint_t i, n;
|
|
118
|
2309 struct linger linger;
|
|
|
2310 ngx_http_log_ctx_t *ctx;
|
|
130
|
2311 ngx_http_handler_pt *log_handler;
|
|
118
|
2312 ngx_http_core_loc_conf_t *clcf;
|
|
|
2313 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
2314
|
|
|
2315 log = r->connection->log;
|
|
|
2316
|
|
|
2317 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2318
|
|
|
2319 if (r->pool == NULL) {
|
|
80
|
2320 ngx_log_error(NGX_LOG_ALERT, log, 0, "http request already closed");
|
|
0
|
2321 return;
|
|
|
2322 }
|
|
|
2323
|
|
|
2324 #if (NGX_STAT_STUB)
|
|
116
|
2325
|
|
0
|
2326 if (r->stat_reading) {
|
|
110
|
2327 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
2328 }
|
|
|
2329
|
|
|
2330 if (r->stat_writing) {
|
|
110
|
2331 ngx_atomic_fetch_add(ngx_stat_writing, -1);
|
|
0
|
2332 }
|
|
116
|
2333
|
|
0
|
2334 #endif
|
|
|
2335
|
|
|
2336 if (error && r->headers_out.status == 0) {
|
|
|
2337 r->headers_out.status = error;
|
|
|
2338 }
|
|
|
2339
|
|
118
|
2340 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
2341
|
|
130
|
2342 log_handler = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.elts;
|
|
|
2343 n = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.nelts;
|
|
|
2344 for (i = 0; i < n; i++) {
|
|
|
2345 log_handler[i](r);
|
|
118
|
2346 }
|
|
0
|
2347
|
|
|
2348 if (r->connection->timedout) {
|
|
|
2349 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2350
|
|
|
2351 if (clcf->reset_timedout_connection) {
|
|
58
|
2352 linger.l_onoff = 1;
|
|
|
2353 linger.l_linger = 0;
|
|
0
|
2354
|
|
|
2355 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
58
|
2356 (const void *) &linger, sizeof(struct linger)) == -1)
|
|
0
|
2357 {
|
|
|
2358 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2359 "setsockopt(SO_LINGER) failed");
|
|
|
2360 }
|
|
|
2361 }
|
|
|
2362 }
|
|
|
2363
|
|
58
|
2364 /* the various request strings were allocated from r->pool */
|
|
0
|
2365 ctx = log->data;
|
|
10
|
2366 ctx->request = NULL;
|
|
0
|
2367
|
|
|
2368 r->request_line.len = 0;
|
|
|
2369
|
|
132
|
2370 r->connection->destroyed = 1;
|
|
|
2371
|
|
0
|
2372 ngx_destroy_pool(r->pool);
|
|
|
2373 }
|
|
|
2374
|
|
|
2375
|
|
80
|
2376 static void
|
|
50
|
2377 ngx_http_close_connection(ngx_connection_t *c)
|
|
0
|
2378 {
|
|
28
|
2379 ngx_pool_t *pool;
|
|
|
2380
|
|
0
|
2381 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2382 "close http connection: %d", c->fd);
|
|
|
2383
|
|
88
|
2384 #if (NGX_HTTP_SSL)
|
|
2
|
2385
|
|
|
2386 if (c->ssl) {
|
|
|
2387 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
126
|
2388 c->ssl->handler = ngx_http_close_connection;
|
|
2
|
2389 return;
|
|
|
2390 }
|
|
|
2391 }
|
|
|
2392
|
|
|
2393 #endif
|
|
|
2394
|
|
0
|
2395 #if (NGX_STAT_STUB)
|
|
110
|
2396 ngx_atomic_fetch_add(ngx_stat_active, -1);
|
|
0
|
2397 #endif
|
|
|
2398
|
|
132
|
2399 c->destroyed = 1;
|
|
|
2400
|
|
28
|
2401 pool = c->pool;
|
|
|
2402
|
|
0
|
2403 ngx_close_connection(c);
|
|
28
|
2404
|
|
50
|
2405 ngx_destroy_pool(pool);
|
|
0
|
2406 }
|
|
|
2407
|
|
|
2408
|
|
50
|
2409 static u_char *
|
|
|
2410 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
2411 {
|
|
32
|
2412 u_char *p;
|
|
54
|
2413 ngx_http_request_t *r;
|
|
32
|
2414 ngx_http_log_ctx_t *ctx;
|
|
10
|
2415
|
|
32
|
2416 if (log->action) {
|
|
58
|
2417 p = ngx_snprintf(buf, len, " while %s", log->action);
|
|
10
|
2418 len -= p - buf;
|
|
54
|
2419 buf = p;
|
|
10
|
2420 }
|
|
|
2421
|
|
58
|
2422 ctx = log->data;
|
|
|
2423
|
|
54
|
2424 p = ngx_snprintf(buf, len, ", client: %V", ctx->client);
|
|
58
|
2425 len -= p - buf;
|
|
54
|
2426
|
|
|
2427 r = ctx->request;
|
|
|
2428
|
|
58
|
2429 if (r) {
|
|
|
2430 return r->log_handler(r, p, len);
|
|
0
|
2431 }
|
|
10
|
2432
|
|
58
|
2433 return p;
|
|
|
2434 }
|
|
|
2435
|
|
|
2436
|
|
|
2437 static u_char *
|
|
|
2438 ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2439 {
|
|
|
2440 u_char *p;
|
|
54
|
2441
|
|
|
2442 if (r->server_name.data) {
|
|
|
2443 p = ngx_snprintf(buf, len, ", server: %V", &r->server_name);
|
|
52
|
2444 len -= p - buf;
|
|
54
|
2445 buf = p;
|
|
52
|
2446 }
|
|
|
2447
|
|
54
|
2448 if (r->unparsed_uri.data) {
|
|
|
2449 p = ngx_snprintf(buf, len, ", URL: \"%V\"", &r->unparsed_uri);
|
|
|
2450 len -= p - buf;
|
|
|
2451 buf = p;
|
|
|
2452
|
|
|
2453 } else {
|
|
|
2454 if (r->request_line.data == NULL && r->request_start) {
|
|
|
2455 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
2456 if (*p == CR || *p == LF) {
|
|
|
2457 break;
|
|
|
2458 }
|
|
|
2459 }
|
|
|
2460
|
|
|
2461 r->request_line.len = p - r->request_start;
|
|
|
2462 r->request_line.data = r->request_start;
|
|
|
2463 }
|
|
|
2464
|
|
|
2465 if (r->request_line.len) {
|
|
|
2466 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
|
2467 len -= p - buf;
|
|
|
2468 buf = p;
|
|
|
2469 }
|
|
10
|
2470 }
|
|
|
2471
|
|
54
|
2472 return ngx_http_log_error_info(r, buf, len);
|
|
0
|
2473 }
|
|
54
|
2474
|
|
|
2475
|
|
|
2476 u_char *
|
|
|
2477 ngx_http_log_error_info(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2478 {
|
|
|
2479 u_char *p;
|
|
|
2480
|
|
|
2481 if (r->headers_in.host) {
|
|
|
2482 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
|
2483 &r->headers_in.host->value);
|
|
|
2484 len -= p - buf;
|
|
|
2485 buf = p;
|
|
|
2486 }
|
|
|
2487
|
|
|
2488 if (r->headers_in.referer) {
|
|
|
2489 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
|
2490 &r->headers_in.referer->value);
|
|
|
2491 buf = p;
|
|
|
2492 }
|
|
|
2493
|
|
|
2494 return buf;
|
|
|
2495 }
|
