|
28
|
1
|
|
|
2 /*
|
|
|
3 * Copyright (C) Igor Sysoev
|
|
|
4 */
|
|
|
5
|
|
|
6
|
|
|
7 #include <ngx_config.h>
|
|
|
8 #include <ngx_core.h>
|
|
|
9 #include <ngx_http.h>
|
|
|
10
|
|
|
11
|
|
58
|
12 static void ngx_http_upstream_rd_check_broken_connection(ngx_http_request_t *r);
|
|
|
13 static void ngx_http_upstream_wr_check_broken_connection(ngx_http_request_t *r);
|
|
|
14 static void ngx_http_upstream_check_broken_connection(ngx_http_request_t *r,
|
|
|
15 ngx_event_t *ev);
|
|
28
|
16 static void ngx_http_upstream_connect(ngx_http_request_t *r,
|
|
36
|
17 ngx_http_upstream_t *u);
|
|
58
|
18 static ngx_int_t ngx_http_upstream_reinit(ngx_http_request_t *r,
|
|
36
|
19 ngx_http_upstream_t *u);
|
|
28
|
20 static void ngx_http_upstream_send_request(ngx_http_request_t *r,
|
|
36
|
21 ngx_http_upstream_t *u);
|
|
28
|
22 static void ngx_http_upstream_send_request_handler(ngx_event_t *wev);
|
|
|
23 static void ngx_http_upstream_process_header(ngx_event_t *rev);
|
|
|
24 static void ngx_http_upstream_send_response(ngx_http_request_t *r,
|
|
36
|
25 ngx_http_upstream_t *u);
|
|
130
|
26 static void
|
|
|
27 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r);
|
|
|
28 static void ngx_http_upstream_process_non_buffered_body(ngx_event_t *ev);
|
|
|
29 static ngx_int_t ngx_http_upstream_non_buffered_filter_init(void *data);
|
|
|
30 static ngx_int_t ngx_http_upstream_non_buffered_filter(void *data,
|
|
|
31 ssize_t bytes);
|
|
58
|
32 static void ngx_http_upstream_process_downstream(ngx_http_request_t *r);
|
|
28
|
33 static void ngx_http_upstream_process_body(ngx_event_t *ev);
|
|
|
34 static void ngx_http_upstream_dummy_handler(ngx_event_t *wev);
|
|
|
35 static void ngx_http_upstream_next(ngx_http_request_t *r,
|
|
36
|
36 ngx_http_upstream_t *u, ngx_uint_t ft_type);
|
|
118
|
37 static void ngx_http_upstream_cleanup(void *data);
|
|
28
|
38 static void ngx_http_upstream_finalize_request(ngx_http_request_t *r,
|
|
36
|
39 ngx_http_upstream_t *u, ngx_int_t rc);
|
|
28
|
40
|
|
58
|
41 static ngx_int_t ngx_http_upstream_process_header_line(ngx_http_request_t *r,
|
|
|
42 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
43 static ngx_int_t
|
|
|
44 ngx_http_upstream_process_multi_header_lines(ngx_http_request_t *r,
|
|
|
45 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
46 static ngx_int_t ngx_http_upstream_ignore_header_line(ngx_http_request_t *r,
|
|
|
47 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
76
|
48 static ngx_int_t ngx_http_upstream_process_limit_rate(ngx_http_request_t *r,
|
|
|
49 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
58
|
50 static ngx_int_t ngx_http_upstream_copy_header_line(ngx_http_request_t *r,
|
|
|
51 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
52 static ngx_int_t
|
|
|
53 ngx_http_upstream_conditional_copy_header_line(ngx_http_request_t *r,
|
|
|
54 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
55 static ngx_int_t
|
|
|
56 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r,
|
|
|
57 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
58 static ngx_int_t ngx_http_upstream_copy_content_type(ngx_http_request_t *r,
|
|
|
59 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
60 static ngx_int_t ngx_http_upstream_copy_content_length(ngx_http_request_t *r,
|
|
|
61 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
62 static ngx_int_t ngx_http_upstream_rewrite_location(ngx_http_request_t *r,
|
|
|
63 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
64 static ngx_int_t ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r,
|
|
|
65 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
66 #if (NGX_HTTP_GZIP)
|
|
|
67 static ngx_int_t ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r,
|
|
|
68 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
69 #endif
|
|
|
70
|
|
28
|
71 static size_t ngx_http_upstream_log_status_getlen(ngx_http_request_t *r,
|
|
36
|
72 uintptr_t data);
|
|
|
73 static u_char *ngx_http_upstream_log_status(ngx_http_request_t *r,
|
|
|
74 u_char *buf, ngx_http_log_op_t *op);
|
|
122
|
75 static size_t ngx_http_upstream_log_response_time_getlen(ngx_http_request_t *r,
|
|
|
76 uintptr_t data);
|
|
112
|
77 static u_char *ngx_http_upstream_log_response_time(ngx_http_request_t *r,
|
|
|
78 u_char *buf, ngx_http_log_op_t *op);
|
|
28
|
79
|
|
58
|
80 static u_char *ngx_http_upstream_log_error(ngx_http_request_t *r, u_char *buf,
|
|
|
81 size_t len);
|
|
122
|
82
|
|
|
83 static ngx_int_t ngx_http_upstream_add_variables(ngx_conf_t *cf);
|
|
|
84 static ngx_int_t ngx_http_upstream_status_variable(ngx_http_request_t *r,
|
|
|
85 ngx_http_variable_value_t *v, uintptr_t data);
|
|
|
86 static ngx_int_t ngx_http_upstream_response_time_variable(ngx_http_request_t *r,
|
|
|
87 ngx_http_variable_value_t *v, uintptr_t data);
|
|
|
88
|
|
58
|
89 static void *ngx_http_upstream_create_main_conf(ngx_conf_t *cf);
|
|
|
90 static char *ngx_http_core_init_main_conf(ngx_conf_t *cf, void *conf);
|
|
|
91
|
|
126
|
92 #if (NGX_HTTP_SSL)
|
|
140
|
93 static void ngx_http_upstream_ssl_init_connection(ngx_http_request_t *,
|
|
|
94 ngx_http_upstream_t *u, ngx_connection_t *c);
|
|
126
|
95 static void ngx_http_upstream_ssl_handshake(ngx_connection_t *c);
|
|
|
96 static void ngx_http_upstream_ssl_shutdown(ngx_connection_t *c,
|
|
|
97 ngx_peer_t *peer);
|
|
|
98 #endif
|
|
|
99
|
|
58
|
100
|
|
|
101 ngx_http_upstream_header_t ngx_http_upstream_headers_in[] = {
|
|
|
102
|
|
|
103 { ngx_string("Status"),
|
|
|
104 ngx_http_upstream_process_header_line,
|
|
|
105 offsetof(ngx_http_upstream_headers_in_t, status),
|
|
64
|
106 /* STUB */ ngx_http_upstream_ignore_header_line, 0, 0 },
|
|
58
|
107
|
|
|
108 { ngx_string("Content-Type"),
|
|
|
109 ngx_http_upstream_process_header_line,
|
|
|
110 offsetof(ngx_http_upstream_headers_in_t, content_type),
|
|
64
|
111 ngx_http_upstream_copy_content_type, 0, 0 },
|
|
58
|
112
|
|
|
113 { ngx_string("Content-Length"),
|
|
|
114 ngx_http_upstream_process_header_line,
|
|
|
115 offsetof(ngx_http_upstream_headers_in_t, content_length),
|
|
64
|
116 ngx_http_upstream_copy_content_length, 0, 0 },
|
|
58
|
117
|
|
|
118 { ngx_string("Date"),
|
|
|
119 ngx_http_upstream_process_header_line,
|
|
|
120 offsetof(ngx_http_upstream_headers_in_t, date),
|
|
|
121 ngx_http_upstream_conditional_copy_header_line,
|
|
64
|
122 offsetof(ngx_http_upstream_conf_t, pass_date), 0 },
|
|
58
|
123
|
|
|
124 { ngx_string("Server"),
|
|
|
125 ngx_http_upstream_process_header_line,
|
|
|
126 offsetof(ngx_http_upstream_headers_in_t, server),
|
|
|
127 ngx_http_upstream_conditional_copy_header_line,
|
|
64
|
128 offsetof(ngx_http_upstream_conf_t, pass_server), 0 },
|
|
58
|
129
|
|
78
|
130 { ngx_string("WWW-Authenticate"),
|
|
|
131 ngx_http_upstream_process_header_line,
|
|
|
132 offsetof(ngx_http_upstream_headers_in_t, www_authenticate),
|
|
|
133 ngx_http_upstream_copy_header_line, 0, 0 },
|
|
|
134
|
|
58
|
135 { ngx_string("Location"),
|
|
|
136 ngx_http_upstream_ignore_header_line, 0,
|
|
64
|
137 ngx_http_upstream_rewrite_location, 0, 0 },
|
|
58
|
138
|
|
|
139 { ngx_string("Refresh"),
|
|
|
140 ngx_http_upstream_ignore_header_line, 0,
|
|
64
|
141 ngx_http_upstream_rewrite_refresh, 0, 0 },
|
|
|
142
|
|
|
143 { ngx_string("Set-Cookie"),
|
|
|
144 ngx_http_upstream_ignore_header_line, 0,
|
|
80
|
145 ngx_http_upstream_copy_header_line, 0, 1 },
|
|
|
146
|
|
|
147 { ngx_string("Content-Disposition"),
|
|
|
148 ngx_http_upstream_ignore_header_line, 0,
|
|
|
149 ngx_http_upstream_copy_header_line, 0, 1 },
|
|
58
|
150
|
|
|
151 { ngx_string("Cache-Control"),
|
|
|
152 ngx_http_upstream_process_multi_header_lines,
|
|
|
153 offsetof(ngx_http_upstream_headers_in_t, cache_control),
|
|
|
154 ngx_http_upstream_copy_multi_header_lines,
|
|
64
|
155 offsetof(ngx_http_headers_out_t, cache_control), 1 },
|
|
58
|
156
|
|
122
|
157 { ngx_string("Expires"),
|
|
|
158 ngx_http_upstream_process_header_line,
|
|
|
159 offsetof(ngx_http_upstream_headers_in_t, expires),
|
|
|
160 ngx_http_upstream_copy_header_line,
|
|
|
161 offsetof(ngx_http_headers_out_t, expires), 1 },
|
|
|
162
|
|
126
|
163 { ngx_string("Accept-Ranges"),
|
|
|
164 ngx_http_upstream_process_header_line,
|
|
|
165 offsetof(ngx_http_upstream_headers_in_t, accept_ranges),
|
|
|
166 ngx_http_upstream_copy_header_line,
|
|
|
167 offsetof(ngx_http_headers_out_t, accept_ranges), 1 },
|
|
|
168
|
|
58
|
169 { ngx_string("Connection"),
|
|
|
170 ngx_http_upstream_ignore_header_line, 0,
|
|
64
|
171 ngx_http_upstream_ignore_header_line, 0, 0 },
|
|
58
|
172
|
|
190
|
173 { ngx_string("Keep-Alive"),
|
|
|
174 ngx_http_upstream_ignore_header_line, 0,
|
|
|
175 ngx_http_upstream_ignore_header_line, 0, 0 },
|
|
|
176
|
|
58
|
177 { ngx_string("X-Pad"),
|
|
|
178 ngx_http_upstream_ignore_header_line, 0,
|
|
64
|
179 ngx_http_upstream_ignore_header_line, 0, 0 },
|
|
58
|
180
|
|
|
181 { ngx_string("X-Powered-By"),
|
|
|
182 ngx_http_upstream_ignore_header_line, 0,
|
|
|
183 ngx_http_upstream_conditional_copy_header_line,
|
|
64
|
184 offsetof(ngx_http_upstream_conf_t, pass_x_powered_by), 0 },
|
|
58
|
185
|
|
|
186 { ngx_string("X-Accel-Expires"),
|
|
|
187 ngx_http_upstream_process_header_line,
|
|
|
188 offsetof(ngx_http_upstream_headers_in_t, x_accel_expires),
|
|
|
189 ngx_http_upstream_conditional_copy_header_line,
|
|
64
|
190 offsetof(ngx_http_upstream_conf_t, pass_x_accel_expires), 0 },
|
|
|
191
|
|
|
192 { ngx_string("X-Accel-Redirect"),
|
|
|
193 ngx_http_upstream_process_header_line,
|
|
|
194 offsetof(ngx_http_upstream_headers_in_t, x_accel_redirect),
|
|
|
195 ngx_http_upstream_ignore_header_line, 0, 0 },
|
|
58
|
196
|
|
76
|
197 { ngx_string("X-Accel-Limit-Rate"),
|
|
|
198 ngx_http_upstream_process_limit_rate, 0,
|
|
|
199 ngx_http_upstream_ignore_header_line, 0, 0 },
|
|
|
200
|
|
58
|
201 #if (NGX_HTTP_GZIP)
|
|
|
202 { ngx_string("Content-Encoding"),
|
|
|
203 ngx_http_upstream_process_header_line,
|
|
|
204 offsetof(ngx_http_upstream_headers_in_t, content_encoding),
|
|
64
|
205 ngx_http_upstream_copy_content_encoding, 0, 0 },
|
|
58
|
206 #endif
|
|
|
207
|
|
64
|
208 { ngx_null_string, NULL, 0, NULL, 0, 0 }
|
|
58
|
209 };
|
|
28
|
210
|
|
|
211
|
|
|
212 ngx_http_module_t ngx_http_upstream_module_ctx = {
|
|
122
|
213 ngx_http_upstream_add_variables, /* preconfiguration */
|
|
58
|
214 NULL, /* postconfiguration */
|
|
|
215
|
|
|
216 ngx_http_upstream_create_main_conf, /* create main configuration */
|
|
|
217 ngx_http_core_init_main_conf, /* init main configuration */
|
|
28
|
218
|
|
|
219 NULL, /* create server configuration */
|
|
|
220 NULL, /* merge server configuration */
|
|
|
221
|
|
|
222 NULL, /* create location configuration */
|
|
|
223 NULL /* merge location configuration */
|
|
|
224 };
|
|
126
|
225
|
|
28
|
226
|
|
|
227 ngx_module_t ngx_http_upstream_module = {
|
|
58
|
228 NGX_MODULE_V1,
|
|
28
|
229 &ngx_http_upstream_module_ctx, /* module context */
|
|
|
230 NULL, /* module directives */
|
|
|
231 NGX_HTTP_MODULE, /* module type */
|
|
90
|
232 NULL, /* init master */
|
|
28
|
233 NULL, /* init module */
|
|
90
|
234 NULL, /* init process */
|
|
|
235 NULL, /* init thread */
|
|
|
236 NULL, /* exit thread */
|
|
|
237 NULL, /* exit process */
|
|
|
238 NULL, /* exit master */
|
|
|
239 NGX_MODULE_V1_PADDING
|
|
28
|
240 };
|
|
|
241
|
|
|
242
|
|
132
|
243 static ngx_http_log_op_name_t ngx_http_upstream_log_fmt_ops[] = {
|
|
28
|
244 { ngx_string("upstream_status"), 0, NULL,
|
|
122
|
245 ngx_http_upstream_log_status_getlen,
|
|
|
246 ngx_http_upstream_log_status },
|
|
|
247 { ngx_string("upstream_response_time"), 0, NULL,
|
|
|
248 ngx_http_upstream_log_response_time_getlen,
|
|
|
249 ngx_http_upstream_log_response_time },
|
|
28
|
250 { ngx_null_string, 0, NULL, NULL, NULL }
|
|
|
251 };
|
|
|
252
|
|
|
253
|
|
122
|
254 static ngx_http_variable_t ngx_http_upstream_vars[] = {
|
|
|
255
|
|
186
|
256 { ngx_string("upstream_status"), NULL,
|
|
132
|
257 ngx_http_upstream_status_variable, 0, NGX_HTTP_VAR_NOHASH, 0 },
|
|
122
|
258
|
|
186
|
259 { ngx_string("upstream_response_time"), NULL,
|
|
132
|
260 ngx_http_upstream_response_time_variable, 0, NGX_HTTP_VAR_NOHASH, 0 },
|
|
122
|
261
|
|
186
|
262 { ngx_null_string, NULL, NULL, 0, 0, 0 }
|
|
122
|
263 };
|
|
|
264
|
|
|
265
|
|
36
|
266 void
|
|
|
267 ngx_http_upstream_init(ngx_http_request_t *r)
|
|
28
|
268 {
|
|
112
|
269 ngx_time_t *tp;
|
|
58
|
270 ngx_connection_t *c;
|
|
118
|
271 ngx_http_cleanup_t *cln;
|
|
58
|
272 ngx_http_upstream_t *u;
|
|
|
273 ngx_http_core_loc_conf_t *clcf;
|
|
28
|
274
|
|
|
275 c = r->connection;
|
|
|
276
|
|
|
277 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
278 "http init upstream, client timer: %d", c->read->timer_set);
|
|
|
279
|
|
|
280 if (c->read->timer_set) {
|
|
|
281 ngx_del_timer(c->read);
|
|
|
282 }
|
|
|
283
|
|
178
|
284 u = r->upstream;
|
|
|
285
|
|
|
286 if (!r->post_action && !u->conf->ignore_client_abort) {
|
|
164
|
287 r->read_event_handler = ngx_http_upstream_rd_check_broken_connection;
|
|
|
288 r->write_event_handler = ngx_http_upstream_wr_check_broken_connection;
|
|
|
289 }
|
|
126
|
290
|
|
28
|
291 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) {
|
|
|
292
|
|
|
293 if (!c->write->active) {
|
|
80
|
294 if (ngx_add_event(c->write, NGX_WRITE_EVENT, NGX_CLEAR_EVENT)
|
|
|
295 == NGX_ERROR)
|
|
28
|
296 {
|
|
|
297 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
298 return;
|
|
|
299 }
|
|
|
300 }
|
|
|
301 }
|
|
|
302
|
|
86
|
303 if (r->request_body) {
|
|
|
304 u->request_bufs = r->request_body->bufs;
|
|
|
305 }
|
|
58
|
306
|
|
86
|
307 if (u->create_request(r) != NGX_OK) {
|
|
28
|
308 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
309 return;
|
|
|
310 }
|
|
|
311
|
|
|
312 u->peer.log = r->connection->log;
|
|
58
|
313 u->saved_log_handler = r->log_handler;
|
|
|
314 r->log_handler = ngx_http_upstream_log_error;
|
|
|
315
|
|
|
316 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
28
|
317
|
|
|
318 u->output.sendfile = r->connection->sendfile;
|
|
|
319 u->output.pool = r->pool;
|
|
|
320 u->output.bufs.num = 1;
|
|
58
|
321 u->output.bufs.size = clcf->client_body_buffer_size;
|
|
28
|
322 u->output.output_filter = ngx_chain_writer;
|
|
|
323 u->output.filter_ctx = &u->writer;
|
|
|
324
|
|
|
325 u->writer.pool = r->pool;
|
|
|
326
|
|
|
327 if (ngx_array_init(&u->states, r->pool, u->peer.peers->number,
|
|
118
|
328 sizeof(ngx_http_upstream_state_t))
|
|
|
329 != NGX_OK)
|
|
28
|
330 {
|
|
|
331 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
332 return;
|
|
|
333 }
|
|
|
334
|
|
50
|
335 u->state = ngx_array_push(&u->states);
|
|
|
336 if (u->state == NULL) {
|
|
28
|
337 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
338 return;
|
|
|
339 }
|
|
|
340
|
|
|
341 ngx_memzero(u->state, sizeof(ngx_http_upstream_state_t));
|
|
|
342
|
|
112
|
343 tp = ngx_timeofday();
|
|
|
344
|
|
|
345 u->state->response_time = tp->sec * 1000 + tp->msec;
|
|
|
346
|
|
142
|
347 cln = ngx_http_cleanup_add(r, 0);
|
|
118
|
348 if (cln == NULL) {
|
|
|
349 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
350 return;
|
|
|
351 }
|
|
|
352
|
|
|
353 cln->handler = ngx_http_upstream_cleanup;
|
|
|
354 cln->data = r;
|
|
|
355 u->cleanup = &cln->handler;
|
|
|
356
|
|
28
|
357 ngx_http_upstream_connect(r, u);
|
|
|
358 }
|
|
|
359
|
|
|
360
|
|
36
|
361 static void
|
|
58
|
362 ngx_http_upstream_rd_check_broken_connection(ngx_http_request_t *r)
|
|
|
363 {
|
|
|
364 ngx_http_upstream_check_broken_connection(r, r->connection->read);
|
|
|
365 }
|
|
|
366
|
|
|
367
|
|
|
368 static void
|
|
|
369 ngx_http_upstream_wr_check_broken_connection(ngx_http_request_t *r)
|
|
|
370 {
|
|
|
371 ngx_http_upstream_check_broken_connection(r, r->connection->write);
|
|
|
372 }
|
|
|
373
|
|
|
374
|
|
|
375 static void
|
|
|
376 ngx_http_upstream_check_broken_connection(ngx_http_request_t *r,
|
|
|
377 ngx_event_t *ev)
|
|
28
|
378 {
|
|
|
379 int n;
|
|
|
380 char buf[1];
|
|
126
|
381 ngx_err_t err;
|
|
28
|
382 ngx_connection_t *c;
|
|
|
383 ngx_http_upstream_t *u;
|
|
|
384
|
|
76
|
385 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, ev->log, 0,
|
|
|
386 "http upstream check client, write event:%d, \"%V\"",
|
|
|
387 ev->write, &r->uri);
|
|
28
|
388
|
|
58
|
389 c = r->connection;
|
|
32
|
390 u = r->upstream;
|
|
|
391
|
|
132
|
392 if (c->error) {
|
|
76
|
393 ngx_http_upstream_finalize_request(r, u,
|
|
|
394 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
395 return;
|
|
|
396 }
|
|
|
397
|
|
32
|
398 if (u->peer.connection == NULL) {
|
|
|
399 return;
|
|
|
400 }
|
|
|
401
|
|
28
|
402 #if (NGX_HAVE_KQUEUE)
|
|
|
403
|
|
|
404 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
|
405
|
|
|
406 if (!ev->pending_eof) {
|
|
|
407 return;
|
|
|
408 }
|
|
|
409
|
|
|
410 ev->eof = 1;
|
|
132
|
411 c->error = 1;
|
|
28
|
412
|
|
|
413 if (ev->kq_errno) {
|
|
|
414 ev->error = 1;
|
|
|
415 }
|
|
|
416
|
|
|
417 if (!u->cachable && u->peer.connection) {
|
|
|
418 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno,
|
|
76
|
419 "kevent() reported that client closed prematurely "
|
|
|
420 "connection, so upstream connection is closed too");
|
|
28
|
421 ngx_http_upstream_finalize_request(r, u,
|
|
|
422 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
423 return;
|
|
|
424 }
|
|
|
425
|
|
|
426 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno,
|
|
|
427 "kevent() reported that client closed "
|
|
|
428 "prematurely connection");
|
|
|
429
|
|
|
430 if (u->peer.connection == NULL) {
|
|
|
431 ngx_http_upstream_finalize_request(r, u,
|
|
|
432 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
433 return;
|
|
|
434 }
|
|
|
435
|
|
|
436 return;
|
|
|
437 }
|
|
|
438
|
|
|
439 #endif
|
|
|
440
|
|
|
441 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
|
442
|
|
|
443 err = ngx_socket_errno;
|
|
|
444
|
|
|
445 /*
|
|
|
446 * we do not need to disable the write event because
|
|
|
447 * that event has NGX_USE_CLEAR_EVENT type
|
|
|
448 */
|
|
|
449
|
|
|
450 if (ev->write && (n >= 0 || err == NGX_EAGAIN)) {
|
|
|
451 return;
|
|
|
452 }
|
|
|
453
|
|
|
454 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && ev->active) {
|
|
|
455 if (ngx_del_event(ev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
456 ngx_http_upstream_finalize_request(r, u,
|
|
|
457 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
458 return;
|
|
|
459 }
|
|
|
460 }
|
|
|
461
|
|
|
462 if (n > 0) {
|
|
|
463 return;
|
|
|
464 }
|
|
|
465
|
|
|
466 if (n == -1) {
|
|
|
467 if (err == NGX_EAGAIN) {
|
|
|
468 return;
|
|
|
469 }
|
|
|
470
|
|
|
471 ev->error = 1;
|
|
|
472
|
|
32
|
473 } else { /* n == 0 */
|
|
28
|
474 err = 0;
|
|
|
475 }
|
|
|
476
|
|
78
|
477 ev->eof = 1;
|
|
132
|
478 c->error = 1;
|
|
78
|
479
|
|
28
|
480 if (!u->cachable && u->peer.connection) {
|
|
|
481 ngx_log_error(NGX_LOG_INFO, ev->log, err,
|
|
|
482 "client closed prematurely connection, "
|
|
|
483 "so upstream connection is closed too");
|
|
|
484 ngx_http_upstream_finalize_request(r, u,
|
|
|
485 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
486 return;
|
|
|
487 }
|
|
|
488
|
|
|
489 ngx_log_error(NGX_LOG_INFO, ev->log, err,
|
|
|
490 "client closed prematurely connection");
|
|
|
491
|
|
|
492 if (u->peer.connection == NULL) {
|
|
|
493 ngx_http_upstream_finalize_request(r, u,
|
|
|
494 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
495 return;
|
|
|
496 }
|
|
|
497 }
|
|
|
498
|
|
|
499
|
|
36
|
500 static void
|
|
|
501 ngx_http_upstream_connect(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
28
|
502 {
|
|
140
|
503 ngx_int_t rc;
|
|
|
504 ngx_connection_t *c;
|
|
28
|
505
|
|
32
|
506 r->connection->log->action = "connecting to upstream";
|
|
28
|
507
|
|
|
508 r->connection->single_connection = 0;
|
|
|
509
|
|
|
510 rc = ngx_event_connect_peer(&u->peer);
|
|
|
511
|
|
|
512 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
513 "http upstream connect: %i", rc);
|
|
|
514
|
|
|
515 if (rc == NGX_ERROR) {
|
|
|
516 ngx_http_upstream_finalize_request(r, u,
|
|
|
517 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
518 return;
|
|
|
519 }
|
|
|
520
|
|
140
|
521 u->state->peer = &u->peer.peers->peer[u->peer.cur_peer].name;
|
|
28
|
522
|
|
92
|
523 if (rc == NGX_BUSY) {
|
|
|
524 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "no live upstreams");
|
|
|
525 }
|
|
|
526
|
|
|
527 if (rc == NGX_BUSY || rc == NGX_DECLINED) {
|
|
28
|
528 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
|
529 return;
|
|
|
530 }
|
|
|
531
|
|
126
|
532 /* rc == NGX_OK || rc == NGX_AGAIN */
|
|
|
533
|
|
28
|
534 c = u->peer.connection;
|
|
|
535
|
|
|
536 c->data = r;
|
|
140
|
537
|
|
58
|
538 c->write->handler = ngx_http_upstream_send_request_handler;
|
|
|
539 c->read->handler = ngx_http_upstream_process_header;
|
|
28
|
540
|
|
|
541 c->sendfile = r->connection->sendfile;
|
|
|
542
|
|
|
543 c->pool = r->pool;
|
|
|
544 c->read->log = c->write->log = c->log = r->connection->log;
|
|
|
545
|
|
|
546 /* init or reinit the ngx_output_chain() and ngx_chain_writer() contexts */
|
|
|
547
|
|
|
548 u->writer.out = NULL;
|
|
|
549 u->writer.last = &u->writer.out;
|
|
|
550 u->writer.connection = c;
|
|
|
551 u->writer.limit = 0;
|
|
|
552
|
|
|
553 if (u->request_sent) {
|
|
58
|
554 if (ngx_http_upstream_reinit(r, u) != NGX_OK) {
|
|
|
555 ngx_http_upstream_finalize_request(r, u,
|
|
|
556 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
557 return;
|
|
|
558 }
|
|
28
|
559 }
|
|
|
560
|
|
146
|
561 if (r->request_body && r->request_body->temp_file && r == r->main) {
|
|
122
|
562
|
|
|
563 /*
|
|
|
564 * the r->request_body->buf can be reused for one request only,
|
|
|
565 * the subrequests should allocate their own temporay bufs
|
|
|
566 */
|
|
|
567
|
|
|
568 u->output.free = ngx_alloc_chain_link(r->pool);
|
|
|
569 if (u->output.free == NULL) {
|
|
|
570 ngx_http_upstream_finalize_request(r, u,
|
|
|
571 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
572 return;
|
|
28
|
573 }
|
|
122
|
574
|
|
|
575 u->output.free->buf = r->request_body->buf;
|
|
|
576 u->output.free->next = NULL;
|
|
|
577 u->output.allocated = 1;
|
|
|
578
|
|
|
579 r->request_body->buf->pos = r->request_body->buf->start;
|
|
|
580 r->request_body->buf->last = r->request_body->buf->start;
|
|
|
581 r->request_body->buf->tag = u->output.tag;
|
|
28
|
582 }
|
|
|
583
|
|
|
584 u->request_sent = 0;
|
|
|
585
|
|
|
586 if (rc == NGX_AGAIN) {
|
|
|
587 ngx_add_timer(c->write, u->conf->connect_timeout);
|
|
|
588 return;
|
|
|
589 }
|
|
|
590
|
|
126
|
591 #if (NGX_HTTP_SSL)
|
|
|
592
|
|
140
|
593 if (u->conf->ssl && c->ssl == NULL) {
|
|
|
594 ngx_http_upstream_ssl_init_connection(r, u, c);
|
|
126
|
595 return;
|
|
|
596 }
|
|
|
597
|
|
|
598 #endif
|
|
|
599
|
|
28
|
600 ngx_http_upstream_send_request(r, u);
|
|
|
601 }
|
|
|
602
|
|
|
603
|
|
126
|
604 #if (NGX_HTTP_SSL)
|
|
|
605
|
|
|
606 static void
|
|
140
|
607 ngx_http_upstream_ssl_init_connection(ngx_http_request_t *r,
|
|
|
608 ngx_http_upstream_t *u, ngx_connection_t *c)
|
|
|
609 {
|
|
|
610 ngx_int_t rc;
|
|
|
611 ngx_peer_t *peer;
|
|
|
612
|
|
|
613 if (ngx_ssl_create_connection(u->conf->ssl, c,
|
|
|
614 NGX_SSL_BUFFER|NGX_SSL_CLIENT)
|
|
|
615 == NGX_ERROR)
|
|
|
616 {
|
|
|
617 ngx_http_upstream_finalize_request(r, u,
|
|
|
618 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
619 return;
|
|
|
620 }
|
|
|
621
|
|
|
622 c->sendfile = 0;
|
|
168
|
623 u->output.sendfile = 0;
|
|
140
|
624
|
|
|
625 peer = &u->peer.peers->peer[u->peer.cur_peer];
|
|
|
626
|
|
|
627 if (ngx_ssl_set_session(c, peer->ssl_session) != NGX_OK) {
|
|
|
628 ngx_http_upstream_finalize_request(r, u,
|
|
|
629 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
630 return;
|
|
|
631 }
|
|
|
632
|
|
190
|
633 r->connection->log->action = "SSL handshaking to upstream";
|
|
|
634
|
|
140
|
635 rc = ngx_ssl_handshake(c);
|
|
|
636
|
|
|
637 if (rc == NGX_AGAIN) {
|
|
|
638 c->ssl->handler = ngx_http_upstream_ssl_handshake;
|
|
|
639 return;
|
|
|
640 }
|
|
|
641
|
|
|
642 ngx_http_upstream_ssl_handshake(c);
|
|
|
643 }
|
|
|
644
|
|
|
645
|
|
|
646 static void
|
|
126
|
647 ngx_http_upstream_ssl_handshake(ngx_connection_t *c)
|
|
|
648 {
|
|
|
649 ngx_http_request_t *r;
|
|
|
650 ngx_http_upstream_t *u;
|
|
|
651
|
|
|
652 r = c->data;
|
|
|
653 u = r->upstream;
|
|
|
654
|
|
|
655 if (c->ssl->handshaked) {
|
|
|
656
|
|
|
657 c->write->handler = ngx_http_upstream_send_request_handler;
|
|
|
658 c->read->handler = ngx_http_upstream_process_header;
|
|
|
659
|
|
|
660 ngx_http_upstream_send_request(r, u);
|
|
|
661
|
|
|
662 return;
|
|
|
663 }
|
|
|
664
|
|
|
665 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
|
666
|
|
|
667 }
|
|
|
668
|
|
|
669 #endif
|
|
|
670
|
|
|
671
|
|
58
|
672 static ngx_int_t
|
|
36
|
673 ngx_http_upstream_reinit(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
28
|
674 {
|
|
|
675 ngx_chain_t *cl;
|
|
|
676
|
|
58
|
677 if (u->reinit_request(r) != NGX_OK) {
|
|
|
678 return NGX_ERROR;
|
|
|
679 }
|
|
|
680
|
|
|
681 ngx_memzero(&r->upstream->headers_in,
|
|
|
682 sizeof(ngx_http_upstream_headers_in_t));
|
|
|
683
|
|
|
684 if (ngx_list_init(&r->upstream->headers_in.headers, r->pool, 8,
|
|
140
|
685 sizeof(ngx_table_elt_t))
|
|
|
686 != NGX_OK)
|
|
58
|
687 {
|
|
|
688 return NGX_ERROR;
|
|
28
|
689 }
|
|
|
690
|
|
|
691 /* reinit the request chain */
|
|
126
|
692
|
|
58
|
693 for (cl = u->request_bufs; cl; cl = cl->next) {
|
|
28
|
694 cl->buf->pos = cl->buf->start;
|
|
|
695 cl->buf->file_pos = 0;
|
|
|
696 }
|
|
|
697
|
|
58
|
698 /* reinit the subrequest's ngx_output_chain() context */
|
|
|
699
|
|
122
|
700 if (r->request_body && r->request_body->temp_file
|
|
146
|
701 && r != r->main && u->output.buf)
|
|
122
|
702 {
|
|
|
703 u->output.free = ngx_alloc_chain_link(r->pool);
|
|
|
704 if (u->output.free == NULL) {
|
|
|
705 return NGX_ERROR;
|
|
58
|
706 }
|
|
122
|
707
|
|
|
708 u->output.free->buf = u->output.buf;
|
|
|
709 u->output.free->next = NULL;
|
|
|
710
|
|
|
711 u->output.buf->pos = u->output.buf->start;
|
|
|
712 u->output.buf->last = u->output.buf->start;
|
|
58
|
713 }
|
|
28
|
714
|
|
|
715 u->output.buf = NULL;
|
|
|
716 u->output.in = NULL;
|
|
|
717 u->output.busy = NULL;
|
|
126
|
718
|
|
130
|
719 /* reinit u->buffer */
|
|
126
|
720
|
|
28
|
721 #if 0
|
|
|
722 if (u->cache) {
|
|
130
|
723 u->buffer.pos = u->buffer.start + u->cache->ctx.header_size;
|
|
|
724 u->buffer.last = u->buffer.pos;
|
|
28
|
725
|
|
|
726 } else {
|
|
130
|
727 u->buffer.pos = u->buffer.start;
|
|
|
728 u->buffer.last = u->buffer.start;
|
|
28
|
729 }
|
|
|
730 #else
|
|
58
|
731
|
|
130
|
732 u->buffer.pos = u->buffer.start;
|
|
|
733 u->buffer.last = u->buffer.start;
|
|
58
|
734
|
|
28
|
735 #endif
|
|
|
736
|
|
|
737 /* add one more state */
|
|
|
738
|
|
50
|
739 u->state = ngx_array_push(&u->states);
|
|
|
740 if (u->state == NULL) {
|
|
58
|
741 return NGX_ERROR;
|
|
28
|
742 }
|
|
|
743
|
|
|
744 ngx_memzero(u->state, sizeof(ngx_http_upstream_state_t));
|
|
58
|
745
|
|
|
746 return NGX_OK;
|
|
28
|
747 }
|
|
|
748
|
|
|
749
|
|
36
|
750 static void
|
|
|
751 ngx_http_upstream_send_request(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
28
|
752 {
|
|
32
|
753 int rc;
|
|
|
754 ngx_connection_t *c;
|
|
126
|
755
|
|
28
|
756 c = u->peer.connection;
|
|
|
757
|
|
|
758 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
759 "http upstream send request");
|
|
|
760
|
|
|
761 #if (NGX_HAVE_KQUEUE)
|
|
|
762
|
|
|
763 if ((ngx_event_flags & NGX_USE_KQUEUE_EVENT)
|
|
|
764 && !u->request_sent
|
|
|
765 && c->write->pending_eof)
|
|
|
766 {
|
|
86
|
767 (void) ngx_connection_error(c, c->write->kq_errno,
|
|
|
768 "kevent() reported that connect() failed");
|
|
28
|
769 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
|
770 return;
|
|
|
771 }
|
|
|
772
|
|
|
773 #endif
|
|
|
774
|
|
32
|
775 c->log->action = "sending request to upstream";
|
|
28
|
776
|
|
58
|
777 rc = ngx_output_chain(&u->output, u->request_sent ? NULL : u->request_bufs);
|
|
28
|
778
|
|
|
779 u->request_sent = 1;
|
|
|
780
|
|
|
781 if (rc == NGX_ERROR) {
|
|
|
782 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
|
783 return;
|
|
|
784 }
|
|
|
785
|
|
|
786 if (c->write->timer_set) {
|
|
|
787 ngx_del_timer(c->write);
|
|
|
788 }
|
|
|
789
|
|
|
790 if (rc == NGX_AGAIN) {
|
|
|
791 ngx_add_timer(c->write, u->conf->send_timeout);
|
|
|
792
|
|
|
793 if (ngx_handle_write_event(c->write, u->conf->send_lowat) == NGX_ERROR)
|
|
|
794 {
|
|
|
795 ngx_http_upstream_finalize_request(r, u,
|
|
|
796 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
797 return;
|
|
|
798 }
|
|
|
799
|
|
|
800 return;
|
|
|
801 }
|
|
|
802
|
|
|
803 /* rc == NGX_OK */
|
|
|
804
|
|
|
805 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
|
806 if (ngx_tcp_push(c->fd) == NGX_ERROR) {
|
|
|
807 ngx_log_error(NGX_LOG_CRIT, c->log, ngx_socket_errno,
|
|
|
808 ngx_tcp_push_n " failed");
|
|
|
809 ngx_http_upstream_finalize_request(r, u,
|
|
|
810 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
126
|
811 return;
|
|
28
|
812 }
|
|
|
813
|
|
|
814 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
|
815 }
|
|
126
|
816
|
|
28
|
817 ngx_add_timer(c->read, u->conf->read_timeout);
|
|
|
818
|
|
|
819 #if 1
|
|
|
820 if (c->read->ready) {
|
|
126
|
821
|
|
28
|
822 /* post aio operation */
|
|
|
823
|
|
|
824 /*
|
|
|
825 * TODO comment
|
|
|
826 * although we can post aio operation just in the end
|
|
|
827 * of ngx_http_upstream_connect() CHECK IT !!!
|
|
|
828 * it's better to do here because we postpone header buffer allocation
|
|
|
829 */
|
|
|
830
|
|
|
831 ngx_http_upstream_process_header(c->read);
|
|
|
832 return;
|
|
|
833 }
|
|
|
834 #endif
|
|
|
835
|
|
58
|
836 c->write->handler = ngx_http_upstream_dummy_handler;
|
|
28
|
837
|
|
58
|
838 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
28
|
839 ngx_http_upstream_finalize_request(r, u,
|
|
|
840 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
841 return;
|
|
|
842 }
|
|
|
843 }
|
|
|
844
|
|
|
845
|
|
36
|
846 static void
|
|
|
847 ngx_http_upstream_send_request_handler(ngx_event_t *wev)
|
|
28
|
848 {
|
|
|
849 ngx_connection_t *c;
|
|
|
850 ngx_http_request_t *r;
|
|
|
851 ngx_http_upstream_t *u;
|
|
|
852
|
|
|
853 c = wev->data;
|
|
|
854 r = c->data;
|
|
|
855 u = r->upstream;
|
|
|
856
|
|
|
857 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
858 "http upstream send request handler");
|
|
|
859
|
|
|
860 if (wev->timedout) {
|
|
|
861 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT);
|
|
|
862 return;
|
|
|
863 }
|
|
|
864
|
|
140
|
865 #if (NGX_HTTP_SSL)
|
|
|
866
|
|
|
867 if (u->conf->ssl && c->ssl == NULL) {
|
|
|
868 ngx_http_upstream_ssl_init_connection(r, u, c);
|
|
|
869 return;
|
|
|
870 }
|
|
|
871
|
|
|
872 #endif
|
|
|
873
|
|
28
|
874 ngx_http_upstream_send_request(r, u);
|
|
|
875 }
|
|
|
876
|
|
|
877
|
|
36
|
878 static void
|
|
|
879 ngx_http_upstream_process_header(ngx_event_t *rev)
|
|
28
|
880 {
|
|
64
|
881 ssize_t n;
|
|
|
882 ngx_int_t rc;
|
|
122
|
883 ngx_str_t *uri, args;
|
|
|
884 ngx_uint_t i, key, flags;
|
|
64
|
885 ngx_list_part_t *part;
|
|
|
886 ngx_table_elt_t *h;
|
|
|
887 ngx_connection_t *c;
|
|
|
888 ngx_http_request_t *r;
|
|
|
889 ngx_http_upstream_t *u;
|
|
|
890 ngx_http_err_page_t *err_page;
|
|
|
891 ngx_http_core_loc_conf_t *clcf;
|
|
|
892 ngx_http_upstream_header_t *hh;
|
|
|
893 ngx_http_upstream_main_conf_t *umcf;
|
|
28
|
894
|
|
|
895 c = rev->data;
|
|
|
896 r = c->data;
|
|
|
897 u = r->upstream;
|
|
|
898
|
|
|
899 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
32
|
900 "http upstream process header");
|
|
28
|
901
|
|
32
|
902 c->log->action = "reading response header from upstream";
|
|
28
|
903
|
|
|
904 if (rev->timedout) {
|
|
|
905 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT);
|
|
|
906 return;
|
|
|
907 }
|
|
126
|
908
|
|
130
|
909 if (u->buffer.start == NULL) {
|
|
|
910 u->buffer.start = ngx_palloc(r->pool, u->conf->buffer_size);
|
|
|
911 if (u->buffer.start == NULL) {
|
|
28
|
912 ngx_http_upstream_finalize_request(r, u,
|
|
|
913 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
914 return;
|
|
|
915 }
|
|
|
916
|
|
130
|
917 u->buffer.pos = u->buffer.start;
|
|
|
918 u->buffer.last = u->buffer.start;
|
|
|
919 u->buffer.end = u->buffer.start + u->conf->buffer_size;
|
|
|
920 u->buffer.temporary = 1;
|
|
|
921
|
|
|
922 u->buffer.tag = u->output.tag;
|
|
28
|
923
|
|
58
|
924 if (ngx_list_init(&r->upstream->headers_in.headers, r->pool, 8,
|
|
130
|
925 sizeof(ngx_table_elt_t))
|
|
|
926 != NGX_OK)
|
|
58
|
927 {
|
|
|
928 ngx_http_upstream_finalize_request(r, u,
|
|
|
929 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
930 return;
|
|
|
931 }
|
|
|
932
|
|
28
|
933 #if 0
|
|
|
934 if (u->cache) {
|
|
130
|
935 u->buffer.pos += u->cache->ctx.header_size;
|
|
|
936 u->buffer.last = u->buffer.pos;
|
|
28
|
937 }
|
|
|
938 #endif
|
|
|
939 }
|
|
|
940
|
|
130
|
941 n = u->peer.connection->recv(u->peer.connection, u->buffer.last,
|
|
|
942 u->buffer.end - u->buffer.last);
|
|
28
|
943
|
|
|
944 if (n == NGX_AGAIN) {
|
|
|
945 #if 0
|
|
|
946 ngx_add_timer(rev, u->read_timeout);
|
|
|
947 #endif
|
|
|
948
|
|
|
949 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
950 ngx_http_upstream_finalize_request(r, u,
|
|
|
951 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
952 return;
|
|
|
953 }
|
|
|
954
|
|
|
955 return;
|
|
|
956 }
|
|
|
957
|
|
|
958 if (n == 0) {
|
|
|
959 ngx_log_error(NGX_LOG_ERR, rev->log, 0,
|
|
|
960 "upstream prematurely closed connection");
|
|
|
961 }
|
|
|
962
|
|
|
963 if (n == NGX_ERROR || n == 0) {
|
|
|
964 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
|
965 return;
|
|
|
966 }
|
|
|
967
|
|
130
|
968 u->buffer.last += n;
|
|
28
|
969
|
|
|
970 #if 0
|
|
|
971 u->valid_header_in = 0;
|
|
|
972
|
|
|
973 u->peer.cached = 0;
|
|
|
974 #endif
|
|
|
975
|
|
|
976 rc = u->process_header(r);
|
|
|
977
|
|
|
978 if (rc == NGX_AGAIN) {
|
|
|
979 #if 0
|
|
|
980 ngx_add_timer(rev, u->read_timeout);
|
|
|
981 #endif
|
|
|
982
|
|
130
|
983 if (u->buffer.pos == u->buffer.end) {
|
|
28
|
984 ngx_log_error(NGX_LOG_ERR, rev->log, 0,
|
|
|
985 "upstream sent too big header");
|
|
|
986
|
|
|
987 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER);
|
|
|
988 return;
|
|
|
989 }
|
|
|
990
|
|
|
991 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
992 ngx_http_upstream_finalize_request(r, u,
|
|
|
993 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
994 return;
|
|
|
995 }
|
|
|
996
|
|
|
997 return;
|
|
|
998 }
|
|
|
999
|
|
|
1000 if (rc == NGX_HTTP_UPSTREAM_INVALID_HEADER) {
|
|
|
1001 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER);
|
|
|
1002 return;
|
|
|
1003 }
|
|
|
1004
|
|
|
1005 if (rc == NGX_ERROR || rc == NGX_HTTP_INTERNAL_SERVER_ERROR) {
|
|
|
1006 ngx_http_upstream_finalize_request(r, u,
|
|
|
1007 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1008 return;
|
|
|
1009 }
|
|
|
1010
|
|
|
1011 /* rc == NGX_OK */
|
|
|
1012
|
|
78
|
1013 if (u->headers_in.status_n == NGX_HTTP_INTERNAL_SERVER_ERROR) {
|
|
58
|
1014
|
|
|
1015 if (u->peer.tries > 1
|
|
|
1016 && (u->conf->next_upstream & NGX_HTTP_UPSTREAM_FT_HTTP_500))
|
|
|
1017 {
|
|
|
1018 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_HTTP_500);
|
|
|
1019 return;
|
|
|
1020 }
|
|
|
1021
|
|
|
1022 #if (NGX_HTTP_CACHE)
|
|
|
1023
|
|
|
1024 if (u->peer.tries == 0
|
|
|
1025 && u->stale
|
|
|
1026 && (u->conf->use_stale & NGX_HTTP_UPSTREAM_FT_HTTP_500))
|
|
|
1027 {
|
|
|
1028 ngx_http_upstream_finalize_request(r, u,
|
|
78
|
1029 ngx_http_send_cached_response(r));
|
|
58
|
1030 return;
|
|
|
1031 }
|
|
|
1032
|
|
|
1033 #endif
|
|
|
1034 }
|
|
|
1035
|
|
146
|
1036 if (u->headers_in.status_n == NGX_HTTP_NOT_FOUND) {
|
|
|
1037
|
|
|
1038 if (u->peer.tries > 1
|
|
|
1039 && u->conf->next_upstream & NGX_HTTP_UPSTREAM_FT_HTTP_404)
|
|
|
1040 {
|
|
|
1041 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_HTTP_404);
|
|
|
1042 return;
|
|
|
1043 }
|
|
|
1044
|
|
|
1045 if (u->conf->redirect_404) {
|
|
|
1046 rc = (r->err_ctx == NULL) ? 404 : 204;
|
|
|
1047 ngx_http_upstream_finalize_request(r, u, rc);
|
|
|
1048 return;
|
|
|
1049 }
|
|
58
|
1050 }
|
|
|
1051
|
|
|
1052
|
|
78
|
1053 if (u->headers_in.status_n >= NGX_HTTP_BAD_REQUEST
|
|
36
|
1054 && u->conf->redirect_errors
|
|
|
1055 && r->err_ctx == NULL)
|
|
|
1056 {
|
|
|
1057 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1058
|
|
|
1059 if (clcf->error_pages) {
|
|
|
1060
|
|
|
1061 err_page = clcf->error_pages->elts;
|
|
|
1062 for (i = 0; i < clcf->error_pages->nelts; i++) {
|
|
78
|
1063 if (err_page[i].status == (ngx_int_t) u->headers_in.status_n) {
|
|
|
1064
|
|
|
1065 if (u->headers_in.status_n == NGX_HTTP_UNAUTHORIZED) {
|
|
|
1066
|
|
|
1067 r->headers_out.www_authenticate =
|
|
|
1068 ngx_list_push(&r->headers_out.headers);
|
|
|
1069
|
|
|
1070 if (r->headers_out.www_authenticate == NULL) {
|
|
|
1071 ngx_http_upstream_finalize_request(r, u,
|
|
|
1072 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1073 return;
|
|
|
1074 }
|
|
|
1075
|
|
126
|
1076 *r->headers_out.www_authenticate =
|
|
78
|
1077 *u->headers_in.www_authenticate;
|
|
|
1078 }
|
|
|
1079
|
|
36
|
1080 ngx_http_upstream_finalize_request(r, u,
|
|
78
|
1081 u->headers_in.status_n);
|
|
36
|
1082 return;
|
|
|
1083 }
|
|
|
1084 }
|
|
|
1085 }
|
|
|
1086 }
|
|
|
1087
|
|
64
|
1088 if (r->upstream->headers_in.x_accel_redirect) {
|
|
|
1089 ngx_http_upstream_finalize_request(r, u, NGX_DECLINED);
|
|
|
1090
|
|
|
1091 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module);
|
|
|
1092 hh = (ngx_http_upstream_header_t *) umcf->headers_in_hash.buckets;
|
|
|
1093
|
|
|
1094 part = &r->upstream->headers_in.headers.part;
|
|
|
1095 h = part->elts;
|
|
|
1096
|
|
|
1097 for (i = 0; /* void */; i++) {
|
|
|
1098
|
|
|
1099 if (i >= part->nelts) {
|
|
|
1100 if (part->next == NULL) {
|
|
|
1101 break;
|
|
|
1102 }
|
|
126
|
1103
|
|
64
|
1104 part = part->next;
|
|
|
1105 h = part->elts;
|
|
|
1106 i = 0;
|
|
|
1107 }
|
|
|
1108
|
|
|
1109 key = h[i].hash % umcf->headers_in_hash.hash_size;
|
|
|
1110
|
|
|
1111 if (hh[key].redirect
|
|
|
1112 && hh[key].name.len == h[i].key.len
|
|
|
1113 && ngx_strcasecmp(hh[key].name.data, h[i].key.data) == 0)
|
|
|
1114 {
|
|
|
1115 if (hh[key].copy_handler(r, &h[i], hh[key].conf) != NGX_OK) {
|
|
|
1116 ngx_http_upstream_finalize_request(r, u,
|
|
|
1117 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1118 return;
|
|
|
1119 }
|
|
|
1120
|
|
|
1121 }
|
|
|
1122 }
|
|
|
1123
|
|
122
|
1124 uri = &r->upstream->headers_in.x_accel_redirect->value;
|
|
|
1125 args.len = 0;
|
|
|
1126 args.data = NULL;
|
|
|
1127 flags = 0;
|
|
|
1128
|
|
|
1129 if (ngx_http_parse_unsafe_uri(r, uri, &args, &flags) != NGX_OK) {
|
|
|
1130 ngx_http_upstream_finalize_request(r, u, NGX_HTTP_NOT_FOUND);
|
|
|
1131 return;
|
|
|
1132 }
|
|
|
1133
|
|
|
1134 if (flags & NGX_HTTP_ZERO_IN_URI) {
|
|
|
1135 r->zero_in_uri = 1;
|
|
|
1136 }
|
|
|
1137
|
|
|
1138 ngx_http_internal_redirect(r, uri, &args);
|
|
64
|
1139 return;
|
|
|
1140 }
|
|
|
1141
|
|
28
|
1142 ngx_http_upstream_send_response(r, u);
|
|
|
1143 }
|
|
|
1144
|
|
|
1145
|
|
36
|
1146 static void
|
|
|
1147 ngx_http_upstream_send_response(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
28
|
1148 {
|
|
132
|
1149 int tcp_nodelay;
|
|
130
|
1150 ssize_t size;
|
|
58
|
1151 ngx_int_t rc;
|
|
|
1152 ngx_uint_t i, key;
|
|
|
1153 ngx_list_part_t *part;
|
|
|
1154 ngx_table_elt_t *h;
|
|
|
1155 ngx_event_pipe_t *p;
|
|
132
|
1156 ngx_connection_t *c;
|
|
112
|
1157 ngx_pool_cleanup_t *cl;
|
|
|
1158 ngx_pool_cleanup_file_t *clf;
|
|
58
|
1159 ngx_http_core_loc_conf_t *clcf;
|
|
|
1160 ngx_http_upstream_header_t *hh;
|
|
|
1161 ngx_http_upstream_main_conf_t *umcf;
|
|
|
1162
|
|
|
1163 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module);
|
|
|
1164 hh = (ngx_http_upstream_header_t *) umcf->headers_in_hash.buckets;
|
|
|
1165
|
|
|
1166 part = &r->upstream->headers_in.headers.part;
|
|
|
1167 h = part->elts;
|
|
|
1168
|
|
|
1169 for (i = 0; /* void */; i++) {
|
|
28
|
1170
|
|
58
|
1171 if (i >= part->nelts) {
|
|
|
1172 if (part->next == NULL) {
|
|
|
1173 break;
|
|
|
1174 }
|
|
126
|
1175
|
|
58
|
1176 part = part->next;
|
|
|
1177 h = part->elts;
|
|
|
1178 i = 0;
|
|
|
1179 }
|
|
|
1180
|
|
|
1181 key = h[i].hash % umcf->headers_in_hash.hash_size;
|
|
|
1182
|
|
|
1183 if (hh[key].name.len == h[i].key.len
|
|
|
1184 && ngx_strcasecmp(hh[key].name.data, h[i].key.data) == 0)
|
|
|
1185 {
|
|
|
1186 if (hh[key].copy_handler(r, &h[i], hh[key].conf) != NGX_OK) {
|
|
|
1187 ngx_http_upstream_finalize_request(r, u,
|
|
|
1188 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1189 return;
|
|
|
1190 }
|
|
|
1191
|
|
|
1192 continue;
|
|
|
1193 }
|
|
|
1194
|
|
|
1195 if (ngx_http_upstream_copy_header_line(r, &h[i], 0) != NGX_OK) {
|
|
|
1196 ngx_http_upstream_finalize_request(r, u,
|
|
|
1197 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1198 return;
|
|
|
1199 }
|
|
|
1200 }
|
|
|
1201
|
|
78
|
1202 r->headers_out.status = u->headers_in.status_n;
|
|
|
1203 r->headers_out.status_line = u->headers_in.status_line;
|
|
|
1204
|
|
130
|
1205 if (r->headers_out.content_length_n != -1) {
|
|
|
1206 u->length = (size_t) r->headers_out.content_length_n;
|
|
|
1207
|
|
|
1208 } else {
|
|
|
1209 u->length = NGX_MAX_SIZE_T_VALUE;
|
|
|
1210 }
|
|
|
1211
|
|
58
|
1212 rc = ngx_http_send_header(r);
|
|
28
|
1213
|
|
178
|
1214 if (rc == NGX_ERROR || rc > NGX_OK || r->post_action) {
|
|
34
|
1215 ngx_http_upstream_finalize_request(r, u, rc);
|
|
28
|
1216 return;
|
|
|
1217 }
|
|
|
1218
|
|
|
1219 u->header_sent = 1;
|
|
|
1220
|
|
122
|
1221 if (r->request_body && r->request_body->temp_file) {
|
|
112
|
1222 for (cl = r->pool->cleanup; cl; cl = cl->next) {
|
|
|
1223 if (cl->handler == ngx_pool_cleanup_file) {
|
|
|
1224 clf = cl->data;
|
|
|
1225
|
|
|
1226 if (clf->fd == r->request_body->temp_file->file.fd) {
|
|
|
1227 cl->handler(clf);
|
|
|
1228 cl->handler = NULL;
|
|
|
1229 break;
|
|
|
1230 }
|
|
|
1231 }
|
|
|
1232 }
|
|
|
1233 }
|
|
|
1234
|
|
132
|
1235 c = r->connection;
|
|
|
1236
|
|
130
|
1237 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1238
|
|
|
1239 if (u->pipe == NULL) {
|
|
|
1240
|
|
|
1241 if (u->input_filter == NULL) {
|
|
|
1242 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init;
|
|
|
1243 u->input_filter = ngx_http_upstream_non_buffered_filter;
|
|
|
1244 u->input_filter_ctx = r;
|
|
|
1245 }
|
|
|
1246
|
|
|
1247 u->peer.connection->read->handler =
|
|
|
1248 ngx_http_upstream_process_non_buffered_body;
|
|
|
1249 r->write_event_handler =
|
|
|
1250 ngx_http_upstream_process_non_buffered_downstream;
|
|
|
1251
|
|
|
1252 r->limit_rate = 0;
|
|
|
1253
|
|
|
1254 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) {
|
|
|
1255 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1256 return;
|
|
|
1257 }
|
|
|
1258
|
|
132
|
1259 if (clcf->tcp_nodelay && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET) {
|
|
|
1260 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
1261
|
|
|
1262 tcp_nodelay = 1;
|
|
|
1263
|
|
|
1264 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
|
1265 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
|
1266 {
|
|
|
1267 ngx_connection_error(c, ngx_socket_errno,
|
|
|
1268 "setsockopt(TCP_NODELAY) failed");
|
|
|
1269 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1270 return;
|
|
|
1271 }
|
|
|
1272
|
|
|
1273 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
|
1274 }
|
|
|
1275
|
|
130
|
1276 size = u->buffer.last - u->buffer.pos;
|
|
|
1277
|
|
|
1278 if (size) {
|
|
|
1279 u->buffer.last = u->buffer.pos;
|
|
|
1280
|
|
|
1281 if (u->input_filter(u->input_filter_ctx, size) == NGX_ERROR) {
|
|
|
1282 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1283 return;
|
|
|
1284 }
|
|
|
1285
|
|
132
|
1286 ngx_http_upstream_process_non_buffered_body(c->write);
|
|
130
|
1287
|
|
|
1288 } else {
|
|
|
1289 u->buffer.pos = u->buffer.start;
|
|
|
1290 u->buffer.last = u->buffer.start;
|
|
|
1291
|
|
|
1292 if (ngx_http_send_special(r, NGX_HTTP_FLUSH) == NGX_ERROR) {
|
|
|
1293 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1294 return;
|
|
|
1295 }
|
|
|
1296 }
|
|
|
1297
|
|
|
1298 return;
|
|
|
1299 }
|
|
|
1300
|
|
28
|
1301 /* TODO: preallocate event_pipe bufs, look "Content-Length" */
|
|
|
1302
|
|
|
1303 #if 0
|
|
|
1304
|
|
|
1305 if (u->cache && u->cache->ctx.file.fd != NGX_INVALID_FILE) {
|
|
|
1306 if (ngx_close_file(u->cache->ctx.file.fd) == NGX_FILE_ERROR) {
|
|
132
|
1307 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno,
|
|
28
|
1308 ngx_close_file_n " \"%s\" failed",
|
|
|
1309 u->cache->ctx.file.name.data);
|
|
|
1310 }
|
|
|
1311 }
|
|
|
1312
|
|
|
1313 if (u->cachable) {
|
|
130
|
1314 header = (ngx_http_cache_header_t *) u->buffer->start;
|
|
28
|
1315
|
|
|
1316 header->expires = u->cache->ctx.expires;
|
|
|
1317 header->last_modified = u->cache->ctx.last_modified;
|
|
|
1318 header->date = u->cache->ctx.date;
|
|
|
1319 header->length = r->headers_out.content_length_n;
|
|
|
1320 u->cache->ctx.length = r->headers_out.content_length_n;
|
|
|
1321
|
|
|
1322 header->key_len = u->cache->ctx.key0.len;
|
|
|
1323 ngx_memcpy(&header->key, u->cache->ctx.key0.data, header->key_len);
|
|
|
1324 header->key[header->key_len] = LF;
|
|
|
1325 }
|
|
|
1326
|
|
|
1327 #endif
|
|
|
1328
|
|
130
|
1329 p = u->pipe;
|
|
28
|
1330
|
|
|
1331 p->output_filter = (ngx_event_pipe_output_filter_pt) ngx_http_output_filter;
|
|
|
1332 p->output_ctx = r;
|
|
|
1333 p->tag = u->output.tag;
|
|
126
|
1334 p->bufs = u->conf->bufs;
|
|
28
|
1335 p->busy_size = u->conf->busy_buffers_size;
|
|
|
1336 p->upstream = u->peer.connection;
|
|
132
|
1337 p->downstream = c;
|
|
28
|
1338 p->pool = r->pool;
|
|
132
|
1339 p->log = c->log;
|
|
126
|
1340
|
|
28
|
1341 p->cachable = u->cachable;
|
|
|
1342
|
|
50
|
1343 p->temp_file = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t));
|
|
|
1344 if (p->temp_file == NULL) {
|
|
28
|
1345 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1346 return;
|
|
|
1347 }
|
|
|
1348
|
|
|
1349 p->temp_file->file.fd = NGX_INVALID_FILE;
|
|
132
|
1350 p->temp_file->file.log = c->log;
|
|
28
|
1351 p->temp_file->path = u->conf->temp_path;
|
|
|
1352 p->temp_file->pool = r->pool;
|
|
126
|
1353
|
|
28
|
1354 if (u->cachable) {
|
|
|
1355 p->temp_file->persistent = 1;
|
|
|
1356 } else {
|
|
|
1357 p->temp_file->warn = "an upstream response is buffered "
|
|
|
1358 "to a temporary file";
|
|
|
1359 }
|
|
|
1360
|
|
|
1361 p->max_temp_file_size = u->conf->max_temp_file_size;
|
|
|
1362 p->temp_file_write_size = u->conf->temp_file_write_size;
|
|
|
1363
|
|
50
|
1364 p->preread_bufs = ngx_alloc_chain_link(r->pool);
|
|
|
1365 if (p->preread_bufs == NULL) {
|
|
28
|
1366 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1367 return;
|
|
|
1368 }
|
|
130
|
1369 p->preread_bufs->buf = &u->buffer;
|
|
28
|
1370 p->preread_bufs->next = NULL;
|
|
130
|
1371 u->buffer.recycled = 1;
|
|
|
1372
|
|
|
1373 p->preread_size = u->buffer.last - u->buffer.pos;
|
|
28
|
1374
|
|
|
1375 if (u->cachable) {
|
|
|
1376 p->buf_to_file = ngx_calloc_buf(r->pool);
|
|
|
1377 if (p->buf_to_file == NULL) {
|
|
|
1378 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1379 return;
|
|
|
1380 }
|
|
130
|
1381 p->buf_to_file->pos = u->buffer.start;
|
|
|
1382 p->buf_to_file->last = u->buffer.pos;
|
|
28
|
1383 p->buf_to_file->temporary = 1;
|
|
|
1384 }
|
|
|
1385
|
|
|
1386 if (ngx_event_flags & NGX_USE_AIO_EVENT) {
|
|
|
1387 /* the posted aio operation may currupt a shadow buffer */
|
|
|
1388 p->single_buf = 1;
|
|
|
1389 }
|
|
|
1390
|
|
|
1391 /* TODO: p->free_bufs = 0 if use ngx_create_chain_of_bufs() */
|
|
|
1392 p->free_bufs = 1;
|
|
|
1393
|
|
|
1394 /*
|
|
130
|
1395 * event_pipe would do u->buffer.last += p->preread_size
|
|
28
|
1396 * as though these bytes were read
|
|
|
1397 */
|
|
130
|
1398 u->buffer.last = u->buffer.pos;
|
|
28
|
1399
|
|
|
1400 if (u->conf->cyclic_temp_file) {
|
|
|
1401
|
|
|
1402 /*
|
|
|
1403 * we need to disable the use of sendfile() if we use cyclic temp file
|
|
|
1404 * because the writing a new data may interfere with sendfile()
|
|
|
1405 * that uses the same kernel file pages (at least on FreeBSD)
|
|
|
1406 */
|
|
|
1407
|
|
|
1408 p->cyclic_temp_file = 1;
|
|
132
|
1409 c->sendfile = 0;
|
|
28
|
1410
|
|
|
1411 } else {
|
|
|
1412 p->cyclic_temp_file = 0;
|
|
|
1413 }
|
|
|
1414
|
|
|
1415 p->read_timeout = u->conf->read_timeout;
|
|
|
1416 p->send_timeout = clcf->send_timeout;
|
|
|
1417 p->send_lowat = clcf->send_lowat;
|
|
|
1418
|
|
58
|
1419 u->peer.connection->read->handler = ngx_http_upstream_process_body;
|
|
|
1420 r->write_event_handler = ngx_http_upstream_process_downstream;
|
|
28
|
1421
|
|
|
1422 ngx_http_upstream_process_body(u->peer.connection->read);
|
|
|
1423 }
|
|
|
1424
|
|
|
1425
|
|
36
|
1426 static void
|
|
130
|
1427 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r)
|
|
|
1428 {
|
|
|
1429 ngx_http_upstream_process_non_buffered_body(r->connection->write);
|
|
|
1430 }
|
|
|
1431
|
|
|
1432
|
|
|
1433 static void
|
|
|
1434 ngx_http_upstream_process_non_buffered_body(ngx_event_t *ev)
|
|
|
1435 {
|
|
|
1436 size_t size;
|
|
|
1437 ssize_t n;
|
|
|
1438 ngx_buf_t *b;
|
|
132
|
1439 ngx_int_t rc;
|
|
130
|
1440 ngx_uint_t do_write;
|
|
132
|
1441 ngx_connection_t *c, *client;
|
|
130
|
1442 ngx_http_request_t *r;
|
|
|
1443 ngx_http_upstream_t *u;
|
|
|
1444 ngx_http_core_loc_conf_t *clcf;
|
|
|
1445
|
|
|
1446 c = ev->data;
|
|
|
1447
|
|
|
1448 if (ev->write) {
|
|
|
1449 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1450 "http upstream process non buffered downstream");
|
|
|
1451 c->log->action = "sending to client";
|
|
|
1452
|
|
|
1453 } else {
|
|
|
1454 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1455 "http upstream process non buffered upstream");
|
|
|
1456 c->log->action = "reading upstream";
|
|
|
1457 }
|
|
|
1458
|
|
|
1459 if (ev->timedout) {
|
|
|
1460 if (ev->write) {
|
|
|
1461 c->timedout = 1;
|
|
160
|
1462 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out");
|
|
|
1463
|
|
130
|
1464 } else {
|
|
160
|
1465 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out");
|
|
130
|
1466 }
|
|
|
1467 }
|
|
|
1468
|
|
|
1469 r = c->data;
|
|
|
1470 u = r->upstream;
|
|
132
|
1471 client = r->connection;
|
|
130
|
1472
|
|
|
1473 b = &u->buffer;
|
|
|
1474
|
|
|
1475 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1476
|
|
|
1477 do_write = ev->write;
|
|
|
1478
|
|
|
1479 for ( ;; ) {
|
|
|
1480
|
|
|
1481 if (do_write) {
|
|
|
1482
|
|
|
1483 if (u->out_bufs || u->busy_bufs) {
|
|
132
|
1484 rc = ngx_http_output_filter(r, u->out_bufs);
|
|
|
1485
|
|
|
1486 if (client->destroyed) {
|
|
|
1487 return;
|
|
|
1488 }
|
|
|
1489
|
|
|
1490 if (rc == NGX_ERROR) {
|
|
130
|
1491 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1492 return;
|
|
|
1493 }
|
|
|
1494
|
|
|
1495 ngx_chain_update_chains(&u->free_bufs, &u->busy_bufs,
|
|
|
1496 &u->out_bufs, u->output.tag);
|
|
|
1497 }
|
|
|
1498
|
|
|
1499 if (u->busy_bufs == NULL) {
|
|
|
1500
|
|
|
1501 if (u->length == 0
|
|
|
1502 || u->peer.connection->read->eof
|
|
|
1503 || u->peer.connection->read->error)
|
|
|
1504 {
|
|
|
1505 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1506 return;
|
|
|
1507 }
|
|
|
1508
|
|
|
1509 b->pos = b->start;
|
|
|
1510 b->last = b->start;
|
|
|
1511 }
|
|
|
1512 }
|
|
|
1513
|
|
|
1514 size = b->end - b->last;
|
|
|
1515
|
|
|
1516 if (size > u->length) {
|
|
|
1517 size = u->length;
|
|
|
1518 }
|
|
|
1519
|
|
|
1520 if (size && u->peer.connection->read->ready) {
|
|
|
1521 n = u->peer.connection->recv(u->peer.connection, b->last, size);
|
|
|
1522
|
|
|
1523 if (n == NGX_AGAIN) {
|
|
|
1524 break;
|
|
|
1525 }
|
|
|
1526
|
|
|
1527 if (n > 0) {
|
|
|
1528 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) {
|
|
|
1529 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1530 return;
|
|
|
1531 }
|
|
|
1532 }
|
|
|
1533
|
|
|
1534 do_write = 1;
|
|
|
1535
|
|
|
1536 continue;
|
|
|
1537 }
|
|
|
1538
|
|
|
1539 break;
|
|
|
1540 }
|
|
|
1541
|
|
132
|
1542 if (client->data == r) {
|
|
|
1543 if (ngx_handle_write_event(client->write, clcf->send_lowat)
|
|
|
1544 == NGX_ERROR)
|
|
|
1545 {
|
|
|
1546 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1547 return;
|
|
|
1548 }
|
|
130
|
1549 }
|
|
|
1550
|
|
132
|
1551 if (client->write->active) {
|
|
|
1552 ngx_add_timer(client->write, clcf->send_timeout);
|
|
|
1553
|
|
|
1554 } else if (client->write->timer_set) {
|
|
|
1555 ngx_del_timer(client->write);
|
|
130
|
1556 }
|
|
|
1557
|
|
|
1558 if (ngx_handle_read_event(u->peer.connection->read, 0) == NGX_ERROR) {
|
|
|
1559 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1560 return;
|
|
|
1561 }
|
|
|
1562
|
|
|
1563 if (u->peer.connection->read->active) {
|
|
|
1564 ngx_add_timer(u->peer.connection->read, u->conf->read_timeout);
|
|
|
1565
|
|
132
|
1566 } else if (u->peer.connection->read->timer_set) {
|
|
|
1567 ngx_del_timer(u->peer.connection->read);
|
|
130
|
1568 }
|
|
|
1569 }
|
|
|
1570
|
|
|
1571
|
|
|
1572 static ngx_int_t
|
|
|
1573 ngx_http_upstream_non_buffered_filter_init(void *data)
|
|
|
1574 {
|
|
|
1575 return NGX_OK;
|
|
|
1576 }
|
|
|
1577
|
|
|
1578
|
|
|
1579 static ngx_int_t
|
|
|
1580 ngx_http_upstream_non_buffered_filter(void *data, ssize_t bytes)
|
|
|
1581 {
|
|
|
1582 ngx_http_request_t *r = data;
|
|
|
1583
|
|
|
1584 ngx_buf_t *b;
|
|
|
1585 ngx_chain_t *cl, **ll;
|
|
|
1586 ngx_http_upstream_t *u;
|
|
|
1587
|
|
|
1588 u = r->upstream;
|
|
|
1589
|
|
|
1590 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) {
|
|
|
1591 ll = &cl->next;
|
|
|
1592 }
|
|
|
1593
|
|
|
1594 cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs);
|
|
|
1595 if (cl == NULL) {
|
|
|
1596 return NGX_ERROR;
|
|
|
1597 }
|
|
|
1598
|
|
|
1599 *ll = cl;
|
|
|
1600
|
|
|
1601 cl->buf->flush = 1;
|
|
|
1602 cl->buf->memory = 1;
|
|
|
1603
|
|
|
1604 b = &u->buffer;
|
|
|
1605
|
|
|
1606 cl->buf->pos = b->last;
|
|
|
1607 b->last += bytes;
|
|
|
1608 cl->buf->last = b->last;
|
|
|
1609
|
|
|
1610 if (u->length == NGX_MAX_SIZE_T_VALUE) {
|
|
|
1611 return NGX_OK;
|
|
|
1612 }
|
|
|
1613
|
|
|
1614 u->length -= bytes;
|
|
|
1615
|
|
|
1616 return NGX_OK;
|
|
|
1617 }
|
|
|
1618
|
|
|
1619
|
|
|
1620 static void
|
|
58
|
1621 ngx_http_upstream_process_downstream(ngx_http_request_t *r)
|
|
|
1622 {
|
|
|
1623 ngx_http_upstream_process_body(r->connection->write);
|
|
|
1624 }
|
|
|
1625
|
|
|
1626
|
|
|
1627 static void
|
|
36
|
1628 ngx_http_upstream_process_body(ngx_event_t *ev)
|
|
28
|
1629 {
|
|
58
|
1630 ngx_event_pipe_t *p;
|
|
132
|
1631 ngx_connection_t *c, *downstream;
|
|
28
|
1632 ngx_http_request_t *r;
|
|
|
1633 ngx_http_upstream_t *u;
|
|
|
1634
|
|
|
1635 c = ev->data;
|
|
|
1636 r = c->data;
|
|
|
1637 u = r->upstream;
|
|
132
|
1638 downstream = r->connection;
|
|
28
|
1639
|
|
|
1640 if (ev->write) {
|
|
32
|
1641 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1642 "http upstream process downstream");
|
|
|
1643 c->log->action = "sending to client";
|
|
126
|
1644
|
|
28
|
1645 } else {
|
|
32
|
1646 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1647 "http upstream process upstream");
|
|
|
1648 c->log->action = "reading upstream";
|
|
28
|
1649 }
|
|
126
|
1650
|
|
130
|
1651 p = u->pipe;
|
|
28
|
1652
|
|
|
1653 if (ev->timedout) {
|
|
|
1654 if (ev->write) {
|
|
76
|
1655 if (ev->delayed) {
|
|
|
1656
|
|
|
1657 ev->timedout = 0;
|
|
|
1658 ev->delayed = 0;
|
|
|
1659
|
|
|
1660 if (!ev->ready) {
|
|
|
1661 ngx_add_timer(ev, p->send_timeout);
|
|
|
1662
|
|
|
1663 if (ngx_handle_write_event(ev, p->send_lowat) == NGX_ERROR)
|
|
|
1664 {
|
|
|
1665 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1666 return;
|
|
|
1667 }
|
|
|
1668
|
|
|
1669 return;
|
|
|
1670 }
|
|
|
1671
|
|
|
1672 if (ngx_event_pipe(p, ev->write) == NGX_ABORT) {
|
|
132
|
1673
|
|
|
1674 if (downstream->destroyed) {
|
|
|
1675 return;
|
|
|
1676 }
|
|
|
1677
|
|
76
|
1678 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1679 return;
|
|
|
1680 }
|
|
|
1681
|
|
|
1682 } else {
|
|
|
1683 p->downstream_error = 1;
|
|
126
|
1684 c->timedout = 1;
|
|
160
|
1685 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out");
|
|
76
|
1686 }
|
|
28
|
1687
|
|
|
1688 } else {
|
|
126
|
1689 p->upstream_error = 1;
|
|
160
|
1690 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out");
|
|
28
|
1691 }
|
|
|
1692
|
|
|
1693 } else {
|
|
76
|
1694 if (ev->write && ev->delayed) {
|
|
|
1695 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1696 "http downstream delayed");
|
|
|
1697
|
|
|
1698 if (ngx_handle_write_event(ev, p->send_lowat) == NGX_ERROR) {
|
|
|
1699 return;
|
|
|
1700 }
|
|
|
1701
|
|
|
1702 return;
|
|
|
1703 }
|
|
|
1704
|
|
28
|
1705 if (ngx_event_pipe(p, ev->write) == NGX_ABORT) {
|
|
132
|
1706
|
|
|
1707 if (downstream->destroyed) {
|
|
|
1708 return;
|
|
|
1709 }
|
|
|
1710
|
|
28
|
1711 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1712 return;
|
|
|
1713 }
|
|
|
1714 }
|
|
126
|
1715
|
|
28
|
1716 if (u->peer.connection) {
|
|
|
1717
|
|
|
1718 #if (NGX_HTTP_FILE_CACHE)
|
|
|
1719
|
|
|
1720 if (p->upstream_done && u->cachable) {
|
|
|
1721 if (ngx_http_cache_update(r) == NGX_ERROR) {
|
|
|
1722 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock);
|
|
|
1723 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1724 return;
|
|
|
1725 }
|
|
|
1726
|
|
|
1727 } else if (p->upstream_eof && u->cachable) {
|
|
|
1728
|
|
|
1729 /* TODO: check length & update cache */
|
|
|
1730
|
|
|
1731 if (ngx_http_cache_update(r) == NGX_ERROR) {
|
|
|
1732 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock);
|
|
|
1733 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1734 return;
|
|
|
1735 }
|
|
|
1736 }
|
|
|
1737
|
|
|
1738 #endif
|
|
|
1739
|
|
|
1740 if (p->upstream_done || p->upstream_eof || p->upstream_error) {
|
|
32
|
1741 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1742 "http upstream exit: %p", p->out);
|
|
28
|
1743 #if 0
|
|
|
1744 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock);
|
|
|
1745 #endif
|
|
|
1746 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1747 return;
|
|
|
1748 }
|
|
|
1749 }
|
|
|
1750
|
|
|
1751 if (p->downstream_error) {
|
|
32
|
1752 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1753 "http upstream downstream error");
|
|
28
|
1754
|
|
|
1755 if (!u->cachable && u->peer.connection) {
|
|
|
1756 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1757 }
|
|
|
1758 }
|
|
|
1759 }
|
|
|
1760
|
|
|
1761
|
|
36
|
1762 static void
|
|
|
1763 ngx_http_upstream_dummy_handler(ngx_event_t *wev)
|
|
28
|
1764 {
|
|
|
1765 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1766 "http upstream dummy handler");
|
|
|
1767 }
|
|
|
1768
|
|
|
1769
|
|
36
|
1770 static void
|
|
|
1771 ngx_http_upstream_next(ngx_http_request_t *r, ngx_http_upstream_t *u,
|
|
|
1772 ngx_uint_t ft_type)
|
|
28
|
1773 {
|
|
74
|
1774 ngx_uint_t status, down;
|
|
28
|
1775
|
|
|
1776 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1777 "http next upstream, %xD", ft_type);
|
|
|
1778
|
|
|
1779 #if 0
|
|
|
1780 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock);
|
|
|
1781 #endif
|
|
|
1782
|
|
74
|
1783 if (ft_type == NGX_HTTP_UPSTREAM_FT_HTTP_404) {
|
|
|
1784 down = 0;
|
|
|
1785 } else {
|
|
|
1786 down = 1;
|
|
28
|
1787 }
|
|
74
|
1788
|
|
|
1789 ngx_event_connect_peer_failed(&u->peer, down);
|
|
|
1790
|
|
28
|
1791 if (ft_type == NGX_HTTP_UPSTREAM_FT_TIMEOUT) {
|
|
|
1792 ngx_log_error(NGX_LOG_ERR, r->connection->log, NGX_ETIMEDOUT,
|
|
|
1793 "upstream timed out");
|
|
|
1794 }
|
|
126
|
1795
|
|
28
|
1796 if (u->peer.cached && ft_type == NGX_HTTP_UPSTREAM_FT_ERROR) {
|
|
|
1797 status = 0;
|
|
|
1798
|
|
|
1799 } else {
|
|
|
1800 switch(ft_type) {
|
|
|
1801
|
|
|
1802 case NGX_HTTP_UPSTREAM_FT_TIMEOUT:
|
|
|
1803 status = NGX_HTTP_GATEWAY_TIME_OUT;
|
|
|
1804 break;
|
|
|
1805
|
|
|
1806 case NGX_HTTP_UPSTREAM_FT_HTTP_500:
|
|
|
1807 status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1808 break;
|
|
|
1809
|
|
|
1810 case NGX_HTTP_UPSTREAM_FT_HTTP_404:
|
|
|
1811 status = NGX_HTTP_NOT_FOUND;
|
|
|
1812 break;
|
|
|
1813
|
|
|
1814 /*
|
|
|
1815 * NGX_HTTP_UPSTREAM_FT_BUSY_LOCK and NGX_HTTP_UPSTREAM_FT_MAX_WAITING
|
|
|
1816 * never reach here
|
|
|
1817 */
|
|
|
1818
|
|
|
1819 default:
|
|
|
1820 status = NGX_HTTP_BAD_GATEWAY;
|
|
|
1821 }
|
|
|
1822 }
|
|
|
1823
|
|
132
|
1824 if (r->connection->error) {
|
|
28
|
1825 ngx_http_upstream_finalize_request(r, u,
|
|
|
1826 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
1827 return;
|
|
|
1828 }
|
|
|
1829
|
|
|
1830 if (status) {
|
|
|
1831 u->state->status = status;
|
|
|
1832
|
|
74
|
1833 if (u->peer.tries == 0 || !(u->conf->next_upstream & ft_type)) {
|
|
28
|
1834
|
|
|
1835 #if (NGX_HTTP_CACHE)
|
|
|
1836
|
|
|
1837 if (u->stale && (u->conf->use_stale & ft_type)) {
|
|
|
1838 ngx_http_upstream_finalize_request(r, u,
|
|
74
|
1839 ngx_http_send_cached_response(r));
|
|
28
|
1840 return;
|
|
|
1841 }
|
|
|
1842
|
|
|
1843 #endif
|
|
|
1844
|
|
|
1845 ngx_http_upstream_finalize_request(r, u, status);
|
|
|
1846 return;
|
|
|
1847 }
|
|
|
1848 }
|
|
|
1849
|
|
|
1850 if (u->peer.connection) {
|
|
|
1851 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1852 "close http upstream connection: %d",
|
|
|
1853 u->peer.connection->fd);
|
|
126
|
1854 #if (NGX_HTTP_SSL)
|
|
|
1855 if (u->peer.connection->ssl) {
|
|
|
1856 ngx_http_upstream_ssl_shutdown(u->peer.connection,
|
|
|
1857 &u->peer.peers->peer[u->peer.cur_peer]);
|
|
|
1858 }
|
|
|
1859 #endif
|
|
28
|
1860 ngx_close_connection(u->peer.connection);
|
|
|
1861 }
|
|
|
1862
|
|
|
1863 #if 0
|
|
|
1864 if (u->conf->busy_lock && !u->busy_locked) {
|
|
|
1865 ngx_http_upstream_busy_lock(p);
|
|
|
1866 return;
|
|
|
1867 }
|
|
|
1868 #endif
|
|
|
1869
|
|
|
1870 ngx_http_upstream_connect(r, u);
|
|
|
1871 }
|
|
|
1872
|
|
|
1873
|
|
36
|
1874 static void
|
|
118
|
1875 ngx_http_upstream_cleanup(void *data)
|
|
|
1876 {
|
|
|
1877 ngx_http_request_t *r = data;
|
|
|
1878
|
|
|
1879 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1880 "cleanup http upstream request: \"%V\"", &r->uri);
|
|
|
1881
|
|
|
1882 ngx_http_upstream_finalize_request(r, r->upstream, NGX_DONE);
|
|
|
1883 }
|
|
|
1884
|
|
|
1885
|
|
|
1886 static void
|
|
36
|
1887 ngx_http_upstream_finalize_request(ngx_http_request_t *r,
|
|
|
1888 ngx_http_upstream_t *u, ngx_int_t rc)
|
|
28
|
1889 {
|
|
112
|
1890 ngx_time_t *tp;
|
|
|
1891
|
|
32
|
1892 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1893 "finalize http upstream request: %i", rc);
|
|
28
|
1894
|
|
118
|
1895 *u->cleanup = NULL;
|
|
|
1896
|
|
112
|
1897 if (u->state->response_time) {
|
|
|
1898 tp = ngx_timeofday();
|
|
|
1899 u->state->response_time = tp->sec * 1000 + tp->msec
|
|
|
1900 - u->state->response_time;
|
|
|
1901 }
|
|
|
1902
|
|
28
|
1903 u->finalize_request(r, rc);
|
|
|
1904
|
|
|
1905 if (u->peer.connection) {
|
|
|
1906 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1907 "close http upstream connection: %d",
|
|
|
1908 u->peer.connection->fd);
|
|
126
|
1909 #if (NGX_HTTP_SSL)
|
|
|
1910
|
|
|
1911 /* TODO: do not shutdown persistent connection */
|
|
|
1912
|
|
|
1913 if (u->peer.connection->ssl) {
|
|
|
1914 ngx_http_upstream_ssl_shutdown(u->peer.connection,
|
|
|
1915 &u->peer.peers->peer[u->peer.cur_peer]);
|
|
|
1916 }
|
|
|
1917 #endif
|
|
28
|
1918 ngx_close_connection(u->peer.connection);
|
|
|
1919 }
|
|
|
1920
|
|
32
|
1921 u->peer.connection = NULL;
|
|
|
1922
|
|
112
|
1923 if (u->header_sent && (rc == NGX_ERROR || rc >= NGX_HTTP_SPECIAL_RESPONSE))
|
|
28
|
1924 {
|
|
|
1925 rc = 0;
|
|
|
1926 }
|
|
|
1927
|
|
130
|
1928 if (u->pipe && u->pipe->temp_file) {
|
|
28
|
1929 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1930 "http upstream temp fd: %d",
|
|
130
|
1931 u->pipe->temp_file->file.fd);
|
|
28
|
1932 }
|
|
|
1933
|
|
|
1934 #if 0
|
|
|
1935 if (u->cache) {
|
|
|
1936 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
32
|
1937 "http upstream cache fd: %d",
|
|
28
|
1938 u->cache->ctx.file.fd);
|
|
|
1939 }
|
|
|
1940 #endif
|
|
|
1941
|
|
58
|
1942 r->log_handler = u->saved_log_handler;
|
|
64
|
1943
|
|
|
1944 if (rc == NGX_DECLINED) {
|
|
|
1945 return;
|
|
|
1946 }
|
|
|
1947
|
|
32
|
1948 r->connection->log->action = "sending to client";
|
|
|
1949
|
|
178
|
1950 if (rc == 0 && r == r->main && !r->post_action) {
|
|
130
|
1951 rc = ngx_http_send_special(r, NGX_HTTP_LAST);
|
|
28
|
1952 }
|
|
|
1953
|
|
|
1954 ngx_http_finalize_request(r, rc);
|
|
|
1955 }
|
|
|
1956
|
|
|
1957
|
|
126
|
1958 #if (NGX_HTTP_SSL)
|
|
|
1959
|
|
|
1960 static void
|
|
|
1961 ngx_http_upstream_ssl_shutdown(ngx_connection_t *c, ngx_peer_t *peer)
|
|
|
1962 {
|
|
|
1963 /* lock peer mutex */
|
|
|
1964
|
|
|
1965 if (peer->ssl_session) {
|
|
|
1966 ngx_ssl_free_session(peer->ssl_session);
|
|
|
1967 }
|
|
|
1968
|
|
|
1969 peer->ssl_session = ngx_ssl_get_session(c);
|
|
|
1970
|
|
|
1971 /* unlock peer mutex */
|
|
|
1972
|
|
|
1973 /*
|
|
|
1974 * We send the "close notify" shutdown alert to the upstream only
|
|
|
1975 * and do not wait its "close notify" shutdown alert.
|
|
|
1976 * It is acceptable according to the TLS standard.
|
|
|
1977 */
|
|
|
1978
|
|
|
1979 c->ssl->no_wait_shutdown = 1;
|
|
|
1980
|
|
|
1981 (void) ngx_ssl_shutdown(c);
|
|
|
1982 }
|
|
|
1983
|
|
|
1984 #endif
|
|
|
1985
|
|
|
1986
|
|
58
|
1987 static ngx_int_t
|
|
|
1988 ngx_http_upstream_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1989 ngx_uint_t offset)
|
|
126
|
1990 {
|
|
58
|
1991 ngx_table_elt_t **ph;
|
|
126
|
1992
|
|
58
|
1993 ph = (ngx_table_elt_t **) ((char *) &r->upstream->headers_in + offset);
|
|
|
1994
|
|
|
1995 if (*ph == NULL) {
|
|
|
1996 *ph = h;
|
|
|
1997 }
|
|
|
1998
|
|
|
1999 return NGX_OK;
|
|
|
2000 }
|
|
|
2001
|
|
|
2002
|
|
|
2003 static ngx_int_t
|
|
|
2004 ngx_http_upstream_process_multi_header_lines(ngx_http_request_t *r,
|
|
|
2005 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
2006 {
|
|
|
2007 ngx_array_t *pa;
|
|
|
2008 ngx_table_elt_t **ph;
|
|
|
2009
|
|
|
2010 pa = (ngx_array_t *) ((char *) &r->upstream->headers_in + offset);
|
|
|
2011
|
|
|
2012 if (pa->elts == NULL) {
|
|
|
2013 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK)
|
|
|
2014 {
|
|
|
2015 return NGX_ERROR;
|
|
|
2016 }
|
|
|
2017 }
|
|
|
2018
|
|
|
2019 ph = ngx_array_push(pa);
|
|
|
2020 if (ph == NULL) {
|
|
|
2021 return NGX_ERROR;
|
|
|
2022 }
|
|
|
2023
|
|
|
2024 *ph = h;
|
|
|
2025
|
|
|
2026 return NGX_OK;
|
|
|
2027 }
|
|
|
2028
|
|
|
2029
|
|
|
2030 static ngx_int_t
|
|
|
2031 ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
2032 ngx_uint_t offset)
|
|
|
2033 {
|
|
|
2034 return NGX_OK;
|
|
|
2035 }
|
|
|
2036
|
|
|
2037
|
|
|
2038 static ngx_int_t
|
|
76
|
2039 ngx_http_upstream_process_limit_rate(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
2040 ngx_uint_t offset)
|
|
126
|
2041 {
|
|
76
|
2042 ngx_int_t n;
|
|
|
2043
|
|
|
2044 r->upstream->headers_in.x_accel_limit_rate = h;
|
|
|
2045
|
|
|
2046 n = ngx_atoi(h->value.data, h->value.len);
|
|
|
2047
|
|
|
2048 if (n != NGX_ERROR) {
|
|
|
2049 r->limit_rate = (size_t) n;
|
|
|
2050 }
|
|
|
2051
|
|
|
2052 return NGX_OK;
|
|
|
2053 }
|
|
|
2054
|
|
|
2055
|
|
|
2056 static ngx_int_t
|
|
58
|
2057 ngx_http_upstream_copy_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
2058 ngx_uint_t offset)
|
|
|
2059 {
|
|
122
|
2060 ngx_table_elt_t *ho, **ph;
|
|
58
|
2061
|
|
|
2062 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
2063 if (ho == NULL) {
|
|
|
2064 return NGX_ERROR;
|
|
|
2065 }
|
|
|
2066
|
|
|
2067 *ho = *h;
|
|
|
2068
|
|
122
|
2069 if (offset) {
|
|
|
2070 ph = (ngx_table_elt_t **) ((char *) &r->headers_out + offset);
|
|
|
2071 *ph = ho;
|
|
|
2072 }
|
|
|
2073
|
|
58
|
2074 return NGX_OK;
|
|
|
2075 }
|
|
|
2076
|
|
|
2077
|
|
|
2078 static ngx_int_t
|
|
|
2079 ngx_http_upstream_conditional_copy_header_line(ngx_http_request_t *r,
|
|
|
2080 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
2081 {
|
|
|
2082 ngx_flag_t *f;
|
|
|
2083 ngx_table_elt_t *ho;
|
|
|
2084
|
|
|
2085 f = (ngx_flag_t *) ((char *) r->upstream->conf + offset);
|
|
|
2086
|
|
|
2087 if (*f == 0) {
|
|
|
2088 return NGX_OK;
|
|
|
2089 }
|
|
|
2090
|
|
|
2091 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
2092 if (ho == NULL) {
|
|
|
2093 return NGX_ERROR;
|
|
|
2094 }
|
|
|
2095
|
|
|
2096 *ho = *h;
|
|
|
2097
|
|
|
2098 return NGX_OK;
|
|
|
2099 }
|
|
|
2100
|
|
|
2101
|
|
|
2102 static ngx_int_t
|
|
|
2103 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r,
|
|
|
2104 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
2105 {
|
|
|
2106 ngx_array_t *pa;
|
|
|
2107 ngx_table_elt_t *ho, **ph;
|
|
|
2108
|
|
|
2109 pa = (ngx_array_t *) ((char *) &r->headers_out + offset);
|
|
|
2110
|
|
|
2111 if (pa->elts == NULL) {
|
|
|
2112 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK)
|
|
|
2113 {
|
|
|
2114 return NGX_ERROR;
|
|
|
2115 }
|
|
|
2116 }
|
|
|
2117
|
|
|
2118 ph = ngx_array_push(pa);
|
|
|
2119 if (ph == NULL) {
|
|
|
2120 return NGX_ERROR;
|
|
|
2121 }
|
|
|
2122
|
|
|
2123 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
2124 if (ho == NULL) {
|
|
|
2125 return NGX_ERROR;
|
|
|
2126 }
|
|
|
2127
|
|
|
2128 *ho = *h;
|
|
|
2129 *ph = ho;
|
|
|
2130
|
|
|
2131 return NGX_OK;
|
|
|
2132 }
|
|
|
2133
|
|
|
2134
|
|
|
2135 static ngx_int_t
|
|
|
2136 ngx_http_upstream_copy_content_type(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
2137 ngx_uint_t offset)
|
|
|
2138 {
|
|
|
2139 r->headers_out.content_type = h->value;
|
|
|
2140
|
|
|
2141 return NGX_OK;
|
|
|
2142 }
|
|
|
2143
|
|
|
2144
|
|
|
2145 static ngx_int_t
|
|
|
2146 ngx_http_upstream_copy_content_length(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
2147 ngx_uint_t offset)
|
|
|
2148 {
|
|
|
2149 ngx_table_elt_t *ho;
|
|
|
2150
|
|
|
2151 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
2152 if (ho == NULL) {
|
|
|
2153 return NGX_ERROR;
|
|
|
2154 }
|
|
|
2155
|
|
|
2156 *ho = *h;
|
|
|
2157
|
|
|
2158 r->headers_out.content_length = ho;
|
|
|
2159 r->headers_out.content_length_n = ngx_atoof(h->value.data, h->value.len);
|
|
|
2160
|
|
|
2161 return NGX_OK;
|
|
|
2162 }
|
|
|
2163
|
|
|
2164
|
|
|
2165 static ngx_int_t
|
|
|
2166 ngx_http_upstream_rewrite_location(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
2167 ngx_uint_t offset)
|
|
|
2168 {
|
|
|
2169 ngx_int_t rc;
|
|
|
2170 ngx_table_elt_t *ho;
|
|
|
2171
|
|
|
2172 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
2173 if (ho == NULL) {
|
|
|
2174 return NGX_ERROR;
|
|
|
2175 }
|
|
|
2176
|
|
|
2177 *ho = *h;
|
|
|
2178
|
|
|
2179 if (r->upstream->rewrite_redirect) {
|
|
|
2180 rc = r->upstream->rewrite_redirect(r, ho, 0);
|
|
|
2181
|
|
78
|
2182 if (rc == NGX_DECLINED) {
|
|
|
2183 return NGX_OK;
|
|
|
2184 }
|
|
|
2185
|
|
58
|
2186 if (rc == NGX_OK) {
|
|
|
2187 r->headers_out.location = ho;
|
|
|
2188
|
|
|
2189 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2190 "rewritten location: \"%V\"", &ho->value);
|
|
|
2191 }
|
|
|
2192
|
|
|
2193 return rc;
|
|
|
2194 }
|
|
|
2195
|
|
|
2196 /*
|
|
|
2197 * we do not set r->headers_out.location here to avoid the handling
|
|
|
2198 * the local redirects without a host name by ngx_http_header_filter()
|
|
|
2199 */
|
|
|
2200
|
|
|
2201 return NGX_OK;
|
|
|
2202 }
|
|
|
2203
|
|
|
2204
|
|
|
2205 static ngx_int_t
|
|
|
2206 ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
2207 ngx_uint_t offset)
|
|
|
2208 {
|
|
|
2209 u_char *p;
|
|
|
2210 ngx_int_t rc;
|
|
|
2211 ngx_table_elt_t *ho;
|
|
|
2212
|
|
|
2213 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
2214 if (ho == NULL) {
|
|
|
2215 return NGX_ERROR;
|
|
|
2216 }
|
|
|
2217
|
|
|
2218 *ho = *h;
|
|
|
2219
|
|
|
2220 if (r->upstream->rewrite_redirect) {
|
|
|
2221
|
|
|
2222 p = (u_char *) ngx_strstr(ho->value.data, "url=");
|
|
|
2223
|
|
|
2224 if (p) {
|
|
|
2225 rc = r->upstream->rewrite_redirect(r, ho, p + 4 - ho->value.data);
|
|
|
2226
|
|
|
2227 } else {
|
|
|
2228 return NGX_OK;
|
|
|
2229 }
|
|
|
2230
|
|
78
|
2231 if (rc == NGX_DECLINED) {
|
|
|
2232 return NGX_OK;
|
|
|
2233 }
|
|
|
2234
|
|
58
|
2235 #if (NGX_DEBUG)
|
|
|
2236 if (rc == NGX_OK) {
|
|
|
2237 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2238 "rewritten refresh: \"%V\"", &ho->value);
|
|
|
2239 }
|
|
|
2240 #endif
|
|
|
2241
|
|
|
2242 return rc;
|
|
|
2243 }
|
|
|
2244
|
|
|
2245 return NGX_OK;
|
|
|
2246 }
|
|
|
2247
|
|
|
2248
|
|
|
2249 #if (NGX_HTTP_GZIP)
|
|
|
2250
|
|
|
2251 static ngx_int_t
|
|
|
2252 ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r,
|
|
|
2253 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
2254 {
|
|
|
2255 ngx_table_elt_t *ho;
|
|
|
2256
|
|
|
2257 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
2258 if (ho == NULL) {
|
|
|
2259 return NGX_ERROR;
|
|
|
2260 }
|
|
|
2261
|
|
|
2262 *ho = *h;
|
|
|
2263
|
|
|
2264 r->headers_out.content_encoding = ho;
|
|
|
2265
|
|
|
2266 return NGX_OK;
|
|
|
2267 }
|
|
|
2268
|
|
|
2269 #endif
|
|
|
2270
|
|
|
2271
|
|
36
|
2272 static size_t
|
|
|
2273 ngx_http_upstream_log_status_getlen(ngx_http_request_t *r, uintptr_t data)
|
|
28
|
2274 {
|
|
|
2275 if (r->upstream) {
|
|
|
2276 return r->upstream->states.nelts * (3 + 2);
|
|
|
2277 }
|
|
|
2278
|
|
|
2279 return 1;
|
|
|
2280 }
|
|
|
2281
|
|
|
2282
|
|
36
|
2283 static u_char *
|
|
|
2284 ngx_http_upstream_log_status(ngx_http_request_t *r, u_char *buf,
|
|
|
2285 ngx_http_log_op_t *op)
|
|
28
|
2286 {
|
|
|
2287 ngx_uint_t i;
|
|
|
2288 ngx_http_upstream_t *u;
|
|
|
2289 ngx_http_upstream_state_t *state;
|
|
|
2290
|
|
|
2291 u = r->upstream;
|
|
|
2292
|
|
122
|
2293 if (u == NULL || u->states.nelts == 0) {
|
|
28
|
2294 *buf = '-';
|
|
|
2295 return buf + 1;
|
|
|
2296 }
|
|
|
2297
|
|
|
2298 i = 0;
|
|
|
2299 state = u->states.elts;
|
|
|
2300
|
|
|
2301 for ( ;; ) {
|
|
|
2302 if (state[i].status == 0) {
|
|
|
2303 *buf++ = '-';
|
|
|
2304
|
|
|
2305 } else {
|
|
|
2306 buf = ngx_sprintf(buf, "%ui", state[i].status);
|
|
|
2307 }
|
|
|
2308
|
|
|
2309 if (++i == u->states.nelts) {
|
|
|
2310 return buf;
|
|
|
2311 }
|
|
|
2312
|
|
|
2313 *buf++ = ',';
|
|
|
2314 *buf++ = ' ';
|
|
|
2315 }
|
|
|
2316 }
|
|
|
2317
|
|
|
2318
|
|
122
|
2319 static size_t
|
|
|
2320 ngx_http_upstream_log_response_time_getlen(ngx_http_request_t *r,
|
|
|
2321 uintptr_t data)
|
|
|
2322 {
|
|
|
2323 if (r->upstream) {
|
|
|
2324 return r->upstream->states.nelts * (NGX_TIME_T_LEN + 4 + 2);
|
|
|
2325 }
|
|
|
2326
|
|
|
2327 return 1;
|
|
|
2328 }
|
|
|
2329
|
|
|
2330
|
|
58
|
2331 static u_char *
|
|
112
|
2332 ngx_http_upstream_log_response_time(ngx_http_request_t *r, u_char *buf,
|
|
|
2333 ngx_http_log_op_t *op)
|
|
|
2334 {
|
|
|
2335 ngx_uint_t i;
|
|
|
2336 ngx_http_upstream_t *u;
|
|
|
2337 ngx_http_upstream_state_t *state;
|
|
|
2338
|
|
|
2339 u = r->upstream;
|
|
|
2340
|
|
122
|
2341 if (u == NULL || u->states.nelts == 0) {
|
|
112
|
2342 *buf = '-';
|
|
|
2343 return buf + 1;
|
|
|
2344 }
|
|
|
2345
|
|
|
2346 i = 0;
|
|
|
2347 state = u->states.elts;
|
|
|
2348
|
|
|
2349 for ( ;; ) {
|
|
|
2350 if (state[i].status == 0) {
|
|
|
2351 *buf++ = '-';
|
|
|
2352
|
|
|
2353 } else {
|
|
|
2354 buf = ngx_sprintf(buf, "%d.%03d",
|
|
|
2355 state[i].response_time / 1000,
|
|
|
2356 state[i].response_time % 1000);
|
|
|
2357 }
|
|
|
2358
|
|
|
2359 if (++i == u->states.nelts) {
|
|
|
2360 return buf;
|
|
|
2361 }
|
|
|
2362
|
|
|
2363 *buf++ = ',';
|
|
|
2364 *buf++ = ' ';
|
|
|
2365 }
|
|
|
2366 }
|
|
|
2367
|
|
|
2368
|
|
|
2369 static u_char *
|
|
58
|
2370 ngx_http_upstream_log_error(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
28
|
2371 {
|
|
|
2372 u_char *p;
|
|
|
2373 ngx_http_upstream_t *u;
|
|
|
2374 ngx_peer_connection_t *peer;
|
|
|
2375
|
|
|
2376 u = r->upstream;
|
|
|
2377 peer = &u->peer;
|
|
|
2378
|
|
|
2379 p = ngx_snprintf(buf, len,
|
|
58
|
2380 ", server: %V, URL: \"%V\","
|
|
118
|
2381 " upstream: \"%V%V%s%V\"",
|
|
52
|
2382 &r->server_name,
|
|
28
|
2383 &r->unparsed_uri,
|
|
58
|
2384 &u->conf->schema,
|
|
28
|
2385 &peer->peers->peer[peer->cur_peer].name,
|
|
|
2386 peer->peers->peer[peer->cur_peer].uri_separator,
|
|
104
|
2387 &u->uri);
|
|
28
|
2388 len -= p - buf;
|
|
|
2389 buf = p;
|
|
|
2390
|
|
54
|
2391 return ngx_http_log_error_info(r, buf, len);
|
|
28
|
2392 }
|
|
|
2393
|
|
|
2394
|
|
36
|
2395 static ngx_int_t
|
|
122
|
2396 ngx_http_upstream_add_variables(ngx_conf_t *cf)
|
|
28
|
2397 {
|
|
122
|
2398 ngx_http_variable_t *var, *v;
|
|
28
|
2399 ngx_http_log_op_name_t *op;
|
|
|
2400
|
|
122
|
2401 for (v = ngx_http_upstream_vars; v->name.len; v++) {
|
|
|
2402 var = ngx_http_add_variable(cf, &v->name, v->flags);
|
|
|
2403 if (var == NULL) {
|
|
|
2404 return NGX_ERROR;
|
|
|
2405 }
|
|
|
2406
|
|
186
|
2407 var->get_handler = v->get_handler;
|
|
122
|
2408 var->data = v->data;
|
|
|
2409 }
|
|
|
2410
|
|
28
|
2411 for (op = ngx_http_upstream_log_fmt_ops; op->name.len; op++) { /* void */ }
|
|
|
2412 op->run = NULL;
|
|
|
2413
|
|
|
2414 for (op = ngx_http_log_fmt_ops; op->run; op++) {
|
|
|
2415 if (op->name.len == 0) {
|
|
|
2416 op = (ngx_http_log_op_name_t *) op->run;
|
|
|
2417 }
|
|
|
2418 }
|
|
|
2419
|
|
|
2420 op->run = (ngx_http_log_op_run_pt) ngx_http_upstream_log_fmt_ops;
|
|
|
2421
|
|
|
2422 return NGX_OK;
|
|
|
2423 }
|
|
58
|
2424
|
|
|
2425
|
|
122
|
2426 static ngx_int_t
|
|
|
2427 ngx_http_upstream_status_variable(ngx_http_request_t *r,
|
|
|
2428 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
2429 {
|
|
|
2430 u_char *p;
|
|
|
2431 size_t len;
|
|
|
2432 ngx_uint_t i;
|
|
|
2433 ngx_http_upstream_t *u;
|
|
|
2434 ngx_http_upstream_state_t *state;
|
|
|
2435
|
|
|
2436 v->valid = 1;
|
|
|
2437 v->no_cachable = 0;
|
|
|
2438 v->not_found = 0;
|
|
|
2439
|
|
|
2440 u = r->upstream;
|
|
|
2441
|
|
|
2442 if (u == NULL || u->states.nelts == 0) {
|
|
|
2443 v->not_found = 1;
|
|
|
2444 return NGX_OK;
|
|
|
2445 }
|
|
|
2446
|
|
|
2447 len = u->states.nelts * (3 + 2);
|
|
|
2448
|
|
|
2449 p = ngx_palloc(r->pool, len);
|
|
|
2450 if (p == NULL) {
|
|
|
2451 return NGX_ERROR;
|
|
|
2452 }
|
|
|
2453
|
|
|
2454 v->data = p;
|
|
|
2455
|
|
|
2456 i = 0;
|
|
|
2457 state = u->states.elts;
|
|
|
2458
|
|
|
2459 for ( ;; ) {
|
|
|
2460 if (state[i].status == 0) {
|
|
|
2461 *p++ = '-';
|
|
|
2462
|
|
|
2463 } else {
|
|
|
2464 p = ngx_sprintf(p, "%ui", state[i].status);
|
|
|
2465 }
|
|
|
2466
|
|
|
2467 if (++i == u->states.nelts) {
|
|
|
2468 break;
|
|
|
2469 }
|
|
|
2470
|
|
|
2471 *p++ = ',';
|
|
|
2472 *p++ = ' ';
|
|
|
2473 }
|
|
|
2474
|
|
|
2475 v->len = p - v->data;
|
|
|
2476
|
|
|
2477 return NGX_OK;
|
|
|
2478 }
|
|
|
2479
|
|
|
2480
|
|
|
2481 static ngx_int_t
|
|
|
2482 ngx_http_upstream_response_time_variable(ngx_http_request_t *r,
|
|
|
2483 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
2484 {
|
|
|
2485 u_char *p;
|
|
|
2486 size_t len;
|
|
|
2487 ngx_uint_t i;
|
|
|
2488 ngx_http_upstream_t *u;
|
|
|
2489 ngx_http_upstream_state_t *state;
|
|
|
2490
|
|
|
2491 v->valid = 1;
|
|
|
2492 v->no_cachable = 0;
|
|
|
2493 v->not_found = 0;
|
|
|
2494
|
|
|
2495 u = r->upstream;
|
|
|
2496
|
|
|
2497 if (u == NULL || u->states.nelts == 0) {
|
|
|
2498 v->not_found = 1;
|
|
|
2499 return NGX_OK;
|
|
|
2500 }
|
|
|
2501
|
|
|
2502 len = u->states.nelts * (NGX_TIME_T_LEN + 4 + 2);
|
|
|
2503
|
|
|
2504 p = ngx_palloc(r->pool, len);
|
|
|
2505 if (p == NULL) {
|
|
|
2506 return NGX_ERROR;
|
|
|
2507 }
|
|
|
2508
|
|
|
2509 v->data = p;
|
|
|
2510
|
|
|
2511 i = 0;
|
|
|
2512 state = u->states.elts;
|
|
|
2513
|
|
|
2514 for ( ;; ) {
|
|
|
2515 if (state[i].status == 0) {
|
|
|
2516 *p++ = '-';
|
|
|
2517
|
|
|
2518 } else {
|
|
|
2519 p = ngx_sprintf(p, "%d.%03d",
|
|
|
2520 state[i].response_time / 1000,
|
|
|
2521 state[i].response_time % 1000);
|
|
|
2522 }
|
|
|
2523
|
|
|
2524 if (++i == u->states.nelts) {
|
|
|
2525 break;
|
|
|
2526 }
|
|
|
2527
|
|
|
2528 *p++ = ',';
|
|
|
2529 *p++ = ' ';
|
|
|
2530 }
|
|
|
2531
|
|
|
2532 v->len = p - v->data;
|
|
|
2533
|
|
|
2534 return NGX_OK;
|
|
|
2535 }
|
|
|
2536
|
|
|
2537
|
|
58
|
2538 static void *
|
|
|
2539 ngx_http_upstream_create_main_conf(ngx_conf_t *cf)
|
|
|
2540 {
|
|
|
2541 ngx_http_upstream_main_conf_t *umcf;
|
|
|
2542
|
|
|
2543 umcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_main_conf_t));
|
|
|
2544 if (umcf == NULL) {
|
|
|
2545 return NULL;
|
|
|
2546 }
|
|
|
2547
|
|
|
2548 return umcf;
|
|
|
2549 }
|
|
|
2550
|
|
|
2551
|
|
|
2552 static char *
|
|
|
2553 ngx_http_core_init_main_conf(ngx_conf_t *cf, void *conf)
|
|
|
2554 {
|
|
|
2555 ngx_http_upstream_main_conf_t *umcf = conf;
|
|
|
2556
|
|
126
|
2557 umcf->headers_in_hash.max_size = 100;
|
|
58
|
2558 umcf->headers_in_hash.bucket_limit = 1;
|
|
|
2559 umcf->headers_in_hash.bucket_size = sizeof(ngx_http_upstream_header_t);
|
|
|
2560 umcf->headers_in_hash.name = "upstream_headers_in";
|
|
|
2561
|
|
138
|
2562 if (ngx_hash0_init(&umcf->headers_in_hash, cf->pool,
|
|
58
|
2563 ngx_http_upstream_headers_in, 0) != NGX_OK)
|
|
|
2564 {
|
|
|
2565 return NGX_CONF_ERROR;
|
|
|
2566 }
|
|
|
2567
|
|
|
2568 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, cf->log, 0,
|
|
|
2569 "http upstream headers_in hash size: %ui, "
|
|
|
2570 "max buckets per entry: %ui",
|
|
|
2571 umcf->headers_in_hash.hash_size,
|
|
|
2572 umcf->headers_in_hash.min_buckets);
|
|
|
2573
|
|
|
2574 return NGX_CONF_OK;
|
|
|
2575 }
|
