|
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
|
|
348
|
12 static void ngx_http_upstream_resolve_handler(ngx_resolver_ctx_t *ctx);
|
|
58
|
13 static void ngx_http_upstream_rd_check_broken_connection(ngx_http_request_t *r);
|
|
|
14 static void ngx_http_upstream_wr_check_broken_connection(ngx_http_request_t *r);
|
|
|
15 static void ngx_http_upstream_check_broken_connection(ngx_http_request_t *r,
|
|
|
16 ngx_event_t *ev);
|
|
28
|
17 static void ngx_http_upstream_connect(ngx_http_request_t *r,
|
|
36
|
18 ngx_http_upstream_t *u);
|
|
58
|
19 static ngx_int_t ngx_http_upstream_reinit(ngx_http_request_t *r,
|
|
36
|
20 ngx_http_upstream_t *u);
|
|
28
|
21 static void ngx_http_upstream_send_request(ngx_http_request_t *r,
|
|
36
|
22 ngx_http_upstream_t *u);
|
|
28
|
23 static void ngx_http_upstream_send_request_handler(ngx_event_t *wev);
|
|
|
24 static void ngx_http_upstream_process_header(ngx_event_t *rev);
|
|
294
|
25 static ngx_int_t ngx_http_upstream_test_connect(ngx_connection_t *c);
|
|
248
|
26 static void ngx_http_upstream_process_body_in_memory(ngx_event_t *rev);
|
|
28
|
27 static void ngx_http_upstream_send_response(ngx_http_request_t *r,
|
|
36
|
28 ngx_http_upstream_t *u);
|
|
130
|
29 static void
|
|
|
30 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r);
|
|
|
31 static void ngx_http_upstream_process_non_buffered_body(ngx_event_t *ev);
|
|
|
32 static ngx_int_t ngx_http_upstream_non_buffered_filter_init(void *data);
|
|
|
33 static ngx_int_t ngx_http_upstream_non_buffered_filter(void *data,
|
|
|
34 ssize_t bytes);
|
|
58
|
35 static void ngx_http_upstream_process_downstream(ngx_http_request_t *r);
|
|
28
|
36 static void ngx_http_upstream_process_body(ngx_event_t *ev);
|
|
318
|
37 static void ngx_http_upstream_store(ngx_http_request_t *r,
|
|
|
38 ngx_http_upstream_t *u);
|
|
28
|
39 static void ngx_http_upstream_dummy_handler(ngx_event_t *wev);
|
|
|
40 static void ngx_http_upstream_next(ngx_http_request_t *r,
|
|
36
|
41 ngx_http_upstream_t *u, ngx_uint_t ft_type);
|
|
118
|
42 static void ngx_http_upstream_cleanup(void *data);
|
|
28
|
43 static void ngx_http_upstream_finalize_request(ngx_http_request_t *r,
|
|
36
|
44 ngx_http_upstream_t *u, ngx_int_t rc);
|
|
28
|
45
|
|
58
|
46 static ngx_int_t ngx_http_upstream_process_header_line(ngx_http_request_t *r,
|
|
|
47 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
48 static ngx_int_t
|
|
|
49 ngx_http_upstream_process_multi_header_lines(ngx_http_request_t *r,
|
|
|
50 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
51 static ngx_int_t ngx_http_upstream_ignore_header_line(ngx_http_request_t *r,
|
|
|
52 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
76
|
53 static ngx_int_t ngx_http_upstream_process_limit_rate(ngx_http_request_t *r,
|
|
|
54 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
198
|
55 static ngx_int_t ngx_http_upstream_process_buffering(ngx_http_request_t *r,
|
|
58
|
56 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
206
|
57 static ngx_int_t ngx_http_upstream_process_charset(ngx_http_request_t *r,
|
|
|
58 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
198
|
59 static ngx_int_t ngx_http_upstream_copy_header_line(ngx_http_request_t *r,
|
|
58
|
60 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
61 static ngx_int_t
|
|
|
62 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r,
|
|
|
63 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
64 static ngx_int_t ngx_http_upstream_copy_content_type(ngx_http_request_t *r,
|
|
|
65 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
66 static ngx_int_t ngx_http_upstream_copy_content_length(ngx_http_request_t *r,
|
|
|
67 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
68 static ngx_int_t ngx_http_upstream_rewrite_location(ngx_http_request_t *r,
|
|
|
69 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
70 static ngx_int_t ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r,
|
|
|
71 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
72 #if (NGX_HTTP_GZIP)
|
|
|
73 static ngx_int_t ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r,
|
|
|
74 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
75 #endif
|
|
|
76
|
|
122
|
77 static ngx_int_t ngx_http_upstream_add_variables(ngx_conf_t *cf);
|
|
298
|
78 static ngx_int_t ngx_http_upstream_addr_variable(ngx_http_request_t *r,
|
|
|
79 ngx_http_variable_value_t *v, uintptr_t data);
|
|
122
|
80 static ngx_int_t ngx_http_upstream_status_variable(ngx_http_request_t *r,
|
|
|
81 ngx_http_variable_value_t *v, uintptr_t data);
|
|
|
82 static ngx_int_t ngx_http_upstream_response_time_variable(ngx_http_request_t *r,
|
|
|
83 ngx_http_variable_value_t *v, uintptr_t data);
|
|
|
84
|
|
200
|
85 static char *ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy);
|
|
|
86 static char *ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd,
|
|
|
87 void *conf);
|
|
|
88
|
|
58
|
89 static void *ngx_http_upstream_create_main_conf(ngx_conf_t *cf);
|
|
200
|
90 static char *ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf);
|
|
58
|
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 #endif
|
|
|
97
|
|
58
|
98
|
|
|
99 ngx_http_upstream_header_t ngx_http_upstream_headers_in[] = {
|
|
|
100
|
|
|
101 { ngx_string("Status"),
|
|
|
102 ngx_http_upstream_process_header_line,
|
|
|
103 offsetof(ngx_http_upstream_headers_in_t, status),
|
|
198
|
104 ngx_http_upstream_copy_header_line, 0, 0 },
|
|
58
|
105
|
|
|
106 { ngx_string("Content-Type"),
|
|
|
107 ngx_http_upstream_process_header_line,
|
|
|
108 offsetof(ngx_http_upstream_headers_in_t, content_type),
|
|
222
|
109 ngx_http_upstream_copy_content_type, 0, 1 },
|
|
58
|
110
|
|
|
111 { ngx_string("Content-Length"),
|
|
|
112 ngx_http_upstream_process_header_line,
|
|
|
113 offsetof(ngx_http_upstream_headers_in_t, content_length),
|
|
64
|
114 ngx_http_upstream_copy_content_length, 0, 0 },
|
|
58
|
115
|
|
|
116 { ngx_string("Date"),
|
|
|
117 ngx_http_upstream_process_header_line,
|
|
|
118 offsetof(ngx_http_upstream_headers_in_t, date),
|
|
198
|
119 ngx_http_upstream_copy_header_line,
|
|
|
120 offsetof(ngx_http_headers_out_t, date), 0 },
|
|
58
|
121
|
|
318
|
122 { ngx_string("Last-Modified"),
|
|
|
123 ngx_http_upstream_process_header_line,
|
|
|
124 offsetof(ngx_http_upstream_headers_in_t, last_modified),
|
|
|
125 ngx_http_upstream_copy_header_line,
|
|
|
126 offsetof(ngx_http_headers_out_t, last_modified), 0 },
|
|
|
127
|
|
58
|
128 { ngx_string("Server"),
|
|
|
129 ngx_http_upstream_process_header_line,
|
|
|
130 offsetof(ngx_http_upstream_headers_in_t, server),
|
|
198
|
131 ngx_http_upstream_copy_header_line,
|
|
|
132 offsetof(ngx_http_headers_out_t, server), 0 },
|
|
58
|
133
|
|
78
|
134 { ngx_string("WWW-Authenticate"),
|
|
|
135 ngx_http_upstream_process_header_line,
|
|
|
136 offsetof(ngx_http_upstream_headers_in_t, www_authenticate),
|
|
|
137 ngx_http_upstream_copy_header_line, 0, 0 },
|
|
|
138
|
|
58
|
139 { ngx_string("Location"),
|
|
392
|
140 ngx_http_upstream_process_header_line,
|
|
|
141 offsetof(ngx_http_upstream_headers_in_t, location),
|
|
64
|
142 ngx_http_upstream_rewrite_location, 0, 0 },
|
|
58
|
143
|
|
|
144 { ngx_string("Refresh"),
|
|
|
145 ngx_http_upstream_ignore_header_line, 0,
|
|
64
|
146 ngx_http_upstream_rewrite_refresh, 0, 0 },
|
|
|
147
|
|
|
148 { ngx_string("Set-Cookie"),
|
|
|
149 ngx_http_upstream_ignore_header_line, 0,
|
|
80
|
150 ngx_http_upstream_copy_header_line, 0, 1 },
|
|
|
151
|
|
|
152 { ngx_string("Content-Disposition"),
|
|
|
153 ngx_http_upstream_ignore_header_line, 0,
|
|
|
154 ngx_http_upstream_copy_header_line, 0, 1 },
|
|
58
|
155
|
|
|
156 { ngx_string("Cache-Control"),
|
|
|
157 ngx_http_upstream_process_multi_header_lines,
|
|
|
158 offsetof(ngx_http_upstream_headers_in_t, cache_control),
|
|
|
159 ngx_http_upstream_copy_multi_header_lines,
|
|
64
|
160 offsetof(ngx_http_headers_out_t, cache_control), 1 },
|
|
58
|
161
|
|
122
|
162 { ngx_string("Expires"),
|
|
|
163 ngx_http_upstream_process_header_line,
|
|
|
164 offsetof(ngx_http_upstream_headers_in_t, expires),
|
|
|
165 ngx_http_upstream_copy_header_line,
|
|
|
166 offsetof(ngx_http_headers_out_t, expires), 1 },
|
|
|
167
|
|
126
|
168 { ngx_string("Accept-Ranges"),
|
|
|
169 ngx_http_upstream_process_header_line,
|
|
|
170 offsetof(ngx_http_upstream_headers_in_t, accept_ranges),
|
|
|
171 ngx_http_upstream_copy_header_line,
|
|
|
172 offsetof(ngx_http_headers_out_t, accept_ranges), 1 },
|
|
|
173
|
|
58
|
174 { ngx_string("Connection"),
|
|
|
175 ngx_http_upstream_ignore_header_line, 0,
|
|
64
|
176 ngx_http_upstream_ignore_header_line, 0, 0 },
|
|
58
|
177
|
|
190
|
178 { ngx_string("Keep-Alive"),
|
|
|
179 ngx_http_upstream_ignore_header_line, 0,
|
|
|
180 ngx_http_upstream_ignore_header_line, 0, 0 },
|
|
|
181
|
|
58
|
182 { ngx_string("X-Powered-By"),
|
|
|
183 ngx_http_upstream_ignore_header_line, 0,
|
|
198
|
184 ngx_http_upstream_copy_header_line, 0, 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),
|
|
198
|
189 ngx_http_upstream_copy_header_line, 0, 0 },
|
|
64
|
190
|
|
|
191 { ngx_string("X-Accel-Redirect"),
|
|
|
192 ngx_http_upstream_process_header_line,
|
|
|
193 offsetof(ngx_http_upstream_headers_in_t, x_accel_redirect),
|
|
|
194 ngx_http_upstream_ignore_header_line, 0, 0 },
|
|
58
|
195
|
|
76
|
196 { ngx_string("X-Accel-Limit-Rate"),
|
|
|
197 ngx_http_upstream_process_limit_rate, 0,
|
|
|
198 ngx_http_upstream_ignore_header_line, 0, 0 },
|
|
|
199
|
|
198
|
200 { ngx_string("X-Accel-Buffering"),
|
|
|
201 ngx_http_upstream_process_buffering, 0,
|
|
|
202 ngx_http_upstream_ignore_header_line, 0, 0 },
|
|
|
203
|
|
206
|
204 { ngx_string("X-Accel-Charset"),
|
|
|
205 ngx_http_upstream_process_charset, 0,
|
|
|
206 ngx_http_upstream_ignore_header_line, 0, 0 },
|
|
|
207
|
|
58
|
208 #if (NGX_HTTP_GZIP)
|
|
|
209 { ngx_string("Content-Encoding"),
|
|
|
210 ngx_http_upstream_process_header_line,
|
|
|
211 offsetof(ngx_http_upstream_headers_in_t, content_encoding),
|
|
64
|
212 ngx_http_upstream_copy_content_encoding, 0, 0 },
|
|
58
|
213 #endif
|
|
|
214
|
|
64
|
215 { ngx_null_string, NULL, 0, NULL, 0, 0 }
|
|
58
|
216 };
|
|
28
|
217
|
|
|
218
|
|
200
|
219 static ngx_command_t ngx_http_upstream_commands[] = {
|
|
|
220
|
|
|
221 { ngx_string("upstream"),
|
|
|
222 NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE1,
|
|
|
223 ngx_http_upstream,
|
|
|
224 0,
|
|
|
225 0,
|
|
|
226 NULL },
|
|
|
227
|
|
|
228 { ngx_string("server"),
|
|
260
|
229 NGX_HTTP_UPS_CONF|NGX_CONF_1MORE,
|
|
200
|
230 ngx_http_upstream_server,
|
|
|
231 NGX_HTTP_SRV_CONF_OFFSET,
|
|
|
232 0,
|
|
|
233 NULL },
|
|
|
234
|
|
|
235 ngx_null_command
|
|
|
236 };
|
|
|
237
|
|
|
238
|
|
|
239 static ngx_http_module_t ngx_http_upstream_module_ctx = {
|
|
122
|
240 ngx_http_upstream_add_variables, /* preconfiguration */
|
|
58
|
241 NULL, /* postconfiguration */
|
|
|
242
|
|
|
243 ngx_http_upstream_create_main_conf, /* create main configuration */
|
|
200
|
244 ngx_http_upstream_init_main_conf, /* init main configuration */
|
|
28
|
245
|
|
|
246 NULL, /* create server configuration */
|
|
|
247 NULL, /* merge server configuration */
|
|
|
248
|
|
|
249 NULL, /* create location configuration */
|
|
|
250 NULL /* merge location configuration */
|
|
|
251 };
|
|
126
|
252
|
|
28
|
253
|
|
|
254 ngx_module_t ngx_http_upstream_module = {
|
|
58
|
255 NGX_MODULE_V1,
|
|
28
|
256 &ngx_http_upstream_module_ctx, /* module context */
|
|
200
|
257 ngx_http_upstream_commands, /* module directives */
|
|
28
|
258 NGX_HTTP_MODULE, /* module type */
|
|
90
|
259 NULL, /* init master */
|
|
28
|
260 NULL, /* init module */
|
|
90
|
261 NULL, /* init process */
|
|
|
262 NULL, /* init thread */
|
|
|
263 NULL, /* exit thread */
|
|
|
264 NULL, /* exit process */
|
|
|
265 NULL, /* exit master */
|
|
|
266 NGX_MODULE_V1_PADDING
|
|
28
|
267 };
|
|
|
268
|
|
|
269
|
|
122
|
270 static ngx_http_variable_t ngx_http_upstream_vars[] = {
|
|
|
271
|
|
298
|
272 { ngx_string("upstream_addr"), NULL,
|
|
|
273 ngx_http_upstream_addr_variable, 0, NGX_HTTP_VAR_NOHASH, 0 },
|
|
|
274
|
|
186
|
275 { ngx_string("upstream_status"), NULL,
|
|
132
|
276 ngx_http_upstream_status_variable, 0, NGX_HTTP_VAR_NOHASH, 0 },
|
|
122
|
277
|
|
186
|
278 { ngx_string("upstream_response_time"), NULL,
|
|
132
|
279 ngx_http_upstream_response_time_variable, 0, NGX_HTTP_VAR_NOHASH, 0 },
|
|
122
|
280
|
|
186
|
281 { ngx_null_string, NULL, NULL, 0, 0, 0 }
|
|
122
|
282 };
|
|
|
283
|
|
|
284
|
|
36
|
285 void
|
|
|
286 ngx_http_upstream_init(ngx_http_request_t *r)
|
|
28
|
287 {
|
|
348
|
288 ngx_str_t *host;
|
|
|
289 ngx_uint_t i;
|
|
|
290 ngx_connection_t *c;
|
|
|
291 ngx_resolver_ctx_t *ctx, temp;
|
|
|
292 ngx_http_cleanup_t *cln;
|
|
|
293 ngx_http_upstream_t *u;
|
|
|
294 ngx_http_core_loc_conf_t *clcf;
|
|
|
295 ngx_http_upstream_srv_conf_t *uscf, **uscfp;
|
|
|
296 ngx_http_upstream_main_conf_t *umcf;
|
|
28
|
297
|
|
|
298 c = r->connection;
|
|
|
299
|
|
|
300 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
301 "http init upstream, client timer: %d", c->read->timer_set);
|
|
|
302
|
|
|
303 if (c->read->timer_set) {
|
|
|
304 ngx_del_timer(c->read);
|
|
|
305 }
|
|
|
306
|
|
178
|
307 u = r->upstream;
|
|
|
308
|
|
|
309 if (!r->post_action && !u->conf->ignore_client_abort) {
|
|
164
|
310 r->read_event_handler = ngx_http_upstream_rd_check_broken_connection;
|
|
|
311 r->write_event_handler = ngx_http_upstream_wr_check_broken_connection;
|
|
|
312 }
|
|
126
|
313
|
|
28
|
314 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) {
|
|
|
315
|
|
|
316 if (!c->write->active) {
|
|
80
|
317 if (ngx_add_event(c->write, NGX_WRITE_EVENT, NGX_CLEAR_EVENT)
|
|
|
318 == NGX_ERROR)
|
|
28
|
319 {
|
|
|
320 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
321 return;
|
|
|
322 }
|
|
|
323 }
|
|
|
324 }
|
|
|
325
|
|
86
|
326 if (r->request_body) {
|
|
|
327 u->request_bufs = r->request_body->bufs;
|
|
|
328 }
|
|
58
|
329
|
|
86
|
330 if (u->create_request(r) != NGX_OK) {
|
|
28
|
331 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
332 return;
|
|
|
333 }
|
|
|
334
|
|
58
|
335 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
28
|
336
|
|
|
337 u->output.pool = r->pool;
|
|
|
338 u->output.bufs.num = 1;
|
|
58
|
339 u->output.bufs.size = clcf->client_body_buffer_size;
|
|
28
|
340 u->output.output_filter = ngx_chain_writer;
|
|
|
341 u->output.filter_ctx = &u->writer;
|
|
|
342
|
|
|
343 u->writer.pool = r->pool;
|
|
|
344
|
|
296
|
345 if (r->upstream_states == NULL) {
|
|
|
346
|
|
|
347 r->upstream_states = ngx_array_create(r->pool, 1,
|
|
|
348 sizeof(ngx_http_upstream_state_t));
|
|
|
349 if (r->upstream_states == NULL) {
|
|
|
350 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
351 return;
|
|
|
352 }
|
|
|
353
|
|
|
354 } else {
|
|
|
355
|
|
|
356 u->state = ngx_array_push(r->upstream_states);
|
|
|
357 if (u->state == NULL) {
|
|
|
358 ngx_http_upstream_finalize_request(r, u,
|
|
|
359 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
360 return;
|
|
|
361 }
|
|
|
362
|
|
|
363 ngx_memzero(u->state, sizeof(ngx_http_upstream_state_t));
|
|
28
|
364 }
|
|
|
365
|
|
142
|
366 cln = ngx_http_cleanup_add(r, 0);
|
|
118
|
367 if (cln == NULL) {
|
|
|
368 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
369 return;
|
|
|
370 }
|
|
|
371
|
|
|
372 cln->handler = ngx_http_upstream_cleanup;
|
|
|
373 cln->data = r;
|
|
|
374 u->cleanup = &cln->handler;
|
|
|
375
|
|
320
|
376 u->store = (u->conf->store || u->conf->store_lengths);
|
|
318
|
377
|
|
348
|
378 if (u->resolved == NULL) {
|
|
|
379
|
|
|
380 uscf = u->conf->upstream;
|
|
|
381
|
|
|
382 } else {
|
|
|
383
|
|
356
|
384 host = &u->resolved->host;
|
|
348
|
385
|
|
|
386 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module);
|
|
|
387
|
|
|
388 uscfp = umcf->upstreams.elts;
|
|
|
389
|
|
|
390 for (i = 0; i < umcf->upstreams.nelts; i++) {
|
|
|
391
|
|
|
392 uscf = uscfp[i];
|
|
|
393
|
|
|
394 if (uscf->host.len == host->len
|
|
366
|
395 && ((uscf->port == 0 && u->resolved->default_port)
|
|
|
396 || uscf->port == u->resolved->port)
|
|
348
|
397 && ngx_memcmp(uscf->host.data, host->data, host->len) == 0)
|
|
|
398 {
|
|
|
399 goto found;
|
|
|
400 }
|
|
|
401 }
|
|
|
402
|
|
|
403 temp.name = *host;
|
|
|
404
|
|
|
405 ctx = ngx_resolve_start(clcf->resolver, &temp);
|
|
|
406 if (ctx == NULL) {
|
|
|
407 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
408 return;
|
|
|
409 }
|
|
|
410
|
|
354
|
411 if (ctx == NGX_NO_RESOLVER) {
|
|
|
412 ngx_log_error(NGX_LOG_ERR, c->log, 0,
|
|
|
413 "no resolver defined to resolve %V", host);
|
|
|
414
|
|
|
415 ngx_http_finalize_request(r, NGX_HTTP_BAD_GATEWAY);
|
|
|
416 return;
|
|
|
417 }
|
|
|
418
|
|
348
|
419 ctx->name = *host;
|
|
|
420 ctx->type = NGX_RESOLVE_A;
|
|
|
421 ctx->handler = ngx_http_upstream_resolve_handler;
|
|
|
422 ctx->data = r;
|
|
|
423 ctx->timeout = clcf->resolver_timeout;
|
|
|
424
|
|
372
|
425 u->resolved->ctx = ctx;
|
|
|
426
|
|
348
|
427 if (ngx_resolve_name(ctx) != NGX_OK) {
|
|
372
|
428 u->resolved->ctx = NULL;
|
|
348
|
429 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
430 return;
|
|
|
431 }
|
|
|
432
|
|
|
433 return;
|
|
|
434 }
|
|
|
435
|
|
|
436 found:
|
|
|
437
|
|
|
438 if (uscf->peer.init(r, uscf) != NGX_OK) {
|
|
|
439 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
440 return;
|
|
|
441 }
|
|
|
442
|
|
28
|
443 ngx_http_upstream_connect(r, u);
|
|
|
444 }
|
|
|
445
|
|
|
446
|
|
36
|
447 static void
|
|
348
|
448 ngx_http_upstream_resolve_handler(ngx_resolver_ctx_t *ctx)
|
|
|
449 {
|
|
|
450 ngx_http_request_t *r;
|
|
|
451 ngx_http_upstream_resolved_t *ur;
|
|
|
452
|
|
|
453 r = ctx->data;
|
|
|
454
|
|
|
455 r->upstream->resolved->ctx = NULL;
|
|
|
456
|
|
|
457 if (ctx->state) {
|
|
|
458 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
459 "%V could not be resolved (%i: %s)",
|
|
|
460 &ctx->name, ctx->state,
|
|
|
461 ngx_resolver_strerror(ctx->state));
|
|
|
462
|
|
|
463 ngx_resolve_name_done(ctx);
|
|
|
464 ngx_http_finalize_request(r, NGX_HTTP_BAD_GATEWAY);
|
|
|
465 return;
|
|
|
466 }
|
|
|
467
|
|
|
468 ur = r->upstream->resolved;
|
|
|
469 ur->naddrs = ctx->naddrs;
|
|
|
470 ur->addrs = ctx->addrs;
|
|
|
471
|
|
|
472 #if (NGX_DEBUG)
|
|
|
473 {
|
|
|
474 in_addr_t addr;
|
|
|
475 ngx_uint_t i;
|
|
|
476
|
|
|
477 for (i = 0; i < ctx->naddrs; i++) {
|
|
|
478 addr = ntohl(ur->addrs[i]);
|
|
|
479
|
|
|
480 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
481 "name was resolved to %ud.%ud.%ud.%ud",
|
|
|
482 (addr >> 24) & 0xff, (addr >> 16) & 0xff,
|
|
|
483 (addr >> 8) & 0xff, addr & 0xff);
|
|
|
484 }
|
|
|
485 }
|
|
|
486 #endif
|
|
|
487
|
|
|
488 if (ngx_http_upstream_create_round_robin_peer(r, ur) != NGX_OK) {
|
|
|
489 ngx_resolve_name_done(ctx);
|
|
|
490 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
491 return;
|
|
|
492 }
|
|
|
493
|
|
|
494 ngx_resolve_name_done(ctx);
|
|
|
495
|
|
|
496 ngx_http_upstream_connect(r, r->upstream);
|
|
|
497 }
|
|
|
498
|
|
|
499
|
|
|
500 static void
|
|
58
|
501 ngx_http_upstream_rd_check_broken_connection(ngx_http_request_t *r)
|
|
|
502 {
|
|
|
503 ngx_http_upstream_check_broken_connection(r, r->connection->read);
|
|
|
504 }
|
|
|
505
|
|
|
506
|
|
|
507 static void
|
|
|
508 ngx_http_upstream_wr_check_broken_connection(ngx_http_request_t *r)
|
|
|
509 {
|
|
|
510 ngx_http_upstream_check_broken_connection(r, r->connection->write);
|
|
|
511 }
|
|
|
512
|
|
|
513
|
|
|
514 static void
|
|
|
515 ngx_http_upstream_check_broken_connection(ngx_http_request_t *r,
|
|
|
516 ngx_event_t *ev)
|
|
28
|
517 {
|
|
|
518 int n;
|
|
|
519 char buf[1];
|
|
126
|
520 ngx_err_t err;
|
|
28
|
521 ngx_connection_t *c;
|
|
|
522 ngx_http_upstream_t *u;
|
|
|
523
|
|
76
|
524 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, ev->log, 0,
|
|
|
525 "http upstream check client, write event:%d, \"%V\"",
|
|
|
526 ev->write, &r->uri);
|
|
28
|
527
|
|
58
|
528 c = r->connection;
|
|
32
|
529 u = r->upstream;
|
|
|
530
|
|
132
|
531 if (c->error) {
|
|
76
|
532 ngx_http_upstream_finalize_request(r, u,
|
|
|
533 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
534 return;
|
|
|
535 }
|
|
|
536
|
|
32
|
537 if (u->peer.connection == NULL) {
|
|
|
538 return;
|
|
|
539 }
|
|
|
540
|
|
28
|
541 #if (NGX_HAVE_KQUEUE)
|
|
|
542
|
|
|
543 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
|
544
|
|
|
545 if (!ev->pending_eof) {
|
|
|
546 return;
|
|
|
547 }
|
|
|
548
|
|
|
549 ev->eof = 1;
|
|
132
|
550 c->error = 1;
|
|
28
|
551
|
|
|
552 if (ev->kq_errno) {
|
|
|
553 ev->error = 1;
|
|
|
554 }
|
|
|
555
|
|
340
|
556 if (!u->cacheable && !u->store && u->peer.connection) {
|
|
28
|
557 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno,
|
|
76
|
558 "kevent() reported that client closed prematurely "
|
|
|
559 "connection, so upstream connection is closed too");
|
|
28
|
560 ngx_http_upstream_finalize_request(r, u,
|
|
|
561 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
562 return;
|
|
|
563 }
|
|
|
564
|
|
|
565 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno,
|
|
|
566 "kevent() reported that client closed "
|
|
|
567 "prematurely connection");
|
|
|
568
|
|
|
569 if (u->peer.connection == NULL) {
|
|
|
570 ngx_http_upstream_finalize_request(r, u,
|
|
|
571 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
572 return;
|
|
|
573 }
|
|
|
574
|
|
|
575 return;
|
|
|
576 }
|
|
|
577
|
|
|
578 #endif
|
|
|
579
|
|
|
580 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
|
581
|
|
|
582 err = ngx_socket_errno;
|
|
|
583
|
|
286
|
584 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ev->log, err,
|
|
|
585 "http upstream recv(): %d", n);
|
|
|
586
|
|
28
|
587 /*
|
|
|
588 * we do not need to disable the write event because
|
|
|
589 * that event has NGX_USE_CLEAR_EVENT type
|
|
|
590 */
|
|
|
591
|
|
|
592 if (ev->write && (n >= 0 || err == NGX_EAGAIN)) {
|
|
|
593 return;
|
|
|
594 }
|
|
|
595
|
|
|
596 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && ev->active) {
|
|
|
597 if (ngx_del_event(ev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
598 ngx_http_upstream_finalize_request(r, u,
|
|
|
599 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
600 return;
|
|
|
601 }
|
|
|
602 }
|
|
|
603
|
|
|
604 if (n > 0) {
|
|
|
605 return;
|
|
|
606 }
|
|
|
607
|
|
|
608 if (n == -1) {
|
|
|
609 if (err == NGX_EAGAIN) {
|
|
|
610 return;
|
|
|
611 }
|
|
|
612
|
|
|
613 ev->error = 1;
|
|
|
614
|
|
32
|
615 } else { /* n == 0 */
|
|
28
|
616 err = 0;
|
|
|
617 }
|
|
|
618
|
|
78
|
619 ev->eof = 1;
|
|
132
|
620 c->error = 1;
|
|
78
|
621
|
|
340
|
622 if (!u->cacheable && !u->store && u->peer.connection) {
|
|
28
|
623 ngx_log_error(NGX_LOG_INFO, ev->log, err,
|
|
|
624 "client closed prematurely connection, "
|
|
|
625 "so upstream connection is closed too");
|
|
|
626 ngx_http_upstream_finalize_request(r, u,
|
|
|
627 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
628 return;
|
|
|
629 }
|
|
|
630
|
|
|
631 ngx_log_error(NGX_LOG_INFO, ev->log, err,
|
|
|
632 "client closed prematurely connection");
|
|
|
633
|
|
|
634 if (u->peer.connection == NULL) {
|
|
|
635 ngx_http_upstream_finalize_request(r, u,
|
|
|
636 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
637 return;
|
|
|
638 }
|
|
|
639 }
|
|
|
640
|
|
|
641
|
|
36
|
642 static void
|
|
|
643 ngx_http_upstream_connect(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
28
|
644 {
|
|
140
|
645 ngx_int_t rc;
|
|
214
|
646 ngx_time_t *tp;
|
|
140
|
647 ngx_connection_t *c;
|
|
28
|
648
|
|
32
|
649 r->connection->log->action = "connecting to upstream";
|
|
28
|
650
|
|
|
651 r->connection->single_connection = 0;
|
|
|
652
|
|
262
|
653 if (u->state && u->state->response_sec) {
|
|
214
|
654 tp = ngx_timeofday();
|
|
262
|
655 u->state->response_sec = tp->sec - u->state->response_sec;
|
|
|
656 u->state->response_msec = tp->msec - u->state->response_msec;
|
|
214
|
657 }
|
|
|
658
|
|
296
|
659 u->state = ngx_array_push(r->upstream_states);
|
|
214
|
660 if (u->state == NULL) {
|
|
|
661 ngx_http_upstream_finalize_request(r, u,
|
|
|
662 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
663 return;
|
|
|
664 }
|
|
|
665
|
|
|
666 ngx_memzero(u->state, sizeof(ngx_http_upstream_state_t));
|
|
|
667
|
|
|
668 tp = ngx_timeofday();
|
|
262
|
669 u->state->response_sec = tp->sec;
|
|
|
670 u->state->response_msec = tp->msec;
|
|
214
|
671
|
|
28
|
672 rc = ngx_event_connect_peer(&u->peer);
|
|
|
673
|
|
|
674 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
675 "http upstream connect: %i", rc);
|
|
|
676
|
|
|
677 if (rc == NGX_ERROR) {
|
|
|
678 ngx_http_upstream_finalize_request(r, u,
|
|
|
679 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
680 return;
|
|
|
681 }
|
|
|
682
|
|
356
|
683 u->state->peer = u->peer.name;
|
|
|
684
|
|
92
|
685 if (rc == NGX_BUSY) {
|
|
|
686 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "no live upstreams");
|
|
326
|
687 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_NOLIVE);
|
|
|
688 return;
|
|
92
|
689 }
|
|
|
690
|
|
326
|
691 if (rc == NGX_DECLINED) {
|
|
28
|
692 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
|
693 return;
|
|
|
694 }
|
|
|
695
|
|
126
|
696 /* rc == NGX_OK || rc == NGX_AGAIN */
|
|
|
697
|
|
28
|
698 c = u->peer.connection;
|
|
|
699
|
|
|
700 c->data = r;
|
|
140
|
701
|
|
58
|
702 c->write->handler = ngx_http_upstream_send_request_handler;
|
|
|
703 c->read->handler = ngx_http_upstream_process_header;
|
|
28
|
704
|
|
326
|
705 c->sendfile &= r->connection->sendfile;
|
|
372
|
706 u->output.sendfile = c->sendfile;
|
|
28
|
707
|
|
|
708 c->pool = r->pool;
|
|
|
709 c->read->log = c->write->log = c->log = r->connection->log;
|
|
|
710
|
|
|
711 /* init or reinit the ngx_output_chain() and ngx_chain_writer() contexts */
|
|
|
712
|
|
|
713 u->writer.out = NULL;
|
|
|
714 u->writer.last = &u->writer.out;
|
|
|
715 u->writer.connection = c;
|
|
|
716 u->writer.limit = 0;
|
|
|
717
|
|
|
718 if (u->request_sent) {
|
|
58
|
719 if (ngx_http_upstream_reinit(r, u) != NGX_OK) {
|
|
|
720 ngx_http_upstream_finalize_request(r, u,
|
|
|
721 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
722 return;
|
|
|
723 }
|
|
28
|
724 }
|
|
|
725
|
|
276
|
726 if (r->request_body
|
|
|
727 && r->request_body->buf
|
|
|
728 && r->request_body->temp_file
|
|
|
729 && r == r->main)
|
|
|
730 {
|
|
122
|
731 /*
|
|
|
732 * the r->request_body->buf can be reused for one request only,
|
|
|
733 * the subrequests should allocate their own temporay bufs
|
|
|
734 */
|
|
|
735
|
|
|
736 u->output.free = ngx_alloc_chain_link(r->pool);
|
|
|
737 if (u->output.free == NULL) {
|
|
|
738 ngx_http_upstream_finalize_request(r, u,
|
|
|
739 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
740 return;
|
|
28
|
741 }
|
|
122
|
742
|
|
|
743 u->output.free->buf = r->request_body->buf;
|
|
|
744 u->output.free->next = NULL;
|
|
|
745 u->output.allocated = 1;
|
|
|
746
|
|
|
747 r->request_body->buf->pos = r->request_body->buf->start;
|
|
|
748 r->request_body->buf->last = r->request_body->buf->start;
|
|
|
749 r->request_body->buf->tag = u->output.tag;
|
|
28
|
750 }
|
|
|
751
|
|
|
752 u->request_sent = 0;
|
|
|
753
|
|
|
754 if (rc == NGX_AGAIN) {
|
|
|
755 ngx_add_timer(c->write, u->conf->connect_timeout);
|
|
|
756 return;
|
|
|
757 }
|
|
|
758
|
|
126
|
759 #if (NGX_HTTP_SSL)
|
|
|
760
|
|
348
|
761 if (u->ssl && c->ssl == NULL) {
|
|
140
|
762 ngx_http_upstream_ssl_init_connection(r, u, c);
|
|
126
|
763 return;
|
|
|
764 }
|
|
|
765
|
|
|
766 #endif
|
|
|
767
|
|
28
|
768 ngx_http_upstream_send_request(r, u);
|
|
|
769 }
|
|
|
770
|
|
|
771
|
|
126
|
772 #if (NGX_HTTP_SSL)
|
|
|
773
|
|
|
774 static void
|
|
140
|
775 ngx_http_upstream_ssl_init_connection(ngx_http_request_t *r,
|
|
|
776 ngx_http_upstream_t *u, ngx_connection_t *c)
|
|
|
777 {
|
|
260
|
778 ngx_int_t rc;
|
|
140
|
779
|
|
|
780 if (ngx_ssl_create_connection(u->conf->ssl, c,
|
|
|
781 NGX_SSL_BUFFER|NGX_SSL_CLIENT)
|
|
|
782 == NGX_ERROR)
|
|
|
783 {
|
|
|
784 ngx_http_upstream_finalize_request(r, u,
|
|
|
785 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
786 return;
|
|
|
787 }
|
|
|
788
|
|
|
789 c->sendfile = 0;
|
|
168
|
790 u->output.sendfile = 0;
|
|
140
|
791
|
|
398
|
792 if (u->conf->ssl_session_reuse) {
|
|
|
793 if (u->peer.set_session(&u->peer, u->peer.data) != NGX_OK) {
|
|
|
794 ngx_http_upstream_finalize_request(r, u,
|
|
|
795 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
796 return;
|
|
|
797 }
|
|
140
|
798 }
|
|
|
799
|
|
190
|
800 r->connection->log->action = "SSL handshaking to upstream";
|
|
|
801
|
|
140
|
802 rc = ngx_ssl_handshake(c);
|
|
|
803
|
|
|
804 if (rc == NGX_AGAIN) {
|
|
|
805 c->ssl->handler = ngx_http_upstream_ssl_handshake;
|
|
|
806 return;
|
|
|
807 }
|
|
|
808
|
|
|
809 ngx_http_upstream_ssl_handshake(c);
|
|
|
810 }
|
|
|
811
|
|
|
812
|
|
|
813 static void
|
|
126
|
814 ngx_http_upstream_ssl_handshake(ngx_connection_t *c)
|
|
|
815 {
|
|
|
816 ngx_http_request_t *r;
|
|
|
817 ngx_http_upstream_t *u;
|
|
|
818
|
|
|
819 r = c->data;
|
|
|
820 u = r->upstream;
|
|
|
821
|
|
|
822 if (c->ssl->handshaked) {
|
|
|
823
|
|
398
|
824 if (u->conf->ssl_session_reuse) {
|
|
|
825 u->peer.save_session(&u->peer, u->peer.data);
|
|
|
826 }
|
|
260
|
827
|
|
126
|
828 c->write->handler = ngx_http_upstream_send_request_handler;
|
|
|
829 c->read->handler = ngx_http_upstream_process_header;
|
|
|
830
|
|
|
831 ngx_http_upstream_send_request(r, u);
|
|
|
832
|
|
|
833 return;
|
|
|
834 }
|
|
|
835
|
|
|
836 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
|
837
|
|
|
838 }
|
|
|
839
|
|
|
840 #endif
|
|
|
841
|
|
|
842
|
|
58
|
843 static ngx_int_t
|
|
36
|
844 ngx_http_upstream_reinit(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
28
|
845 {
|
|
|
846 ngx_chain_t *cl;
|
|
|
847
|
|
58
|
848 if (u->reinit_request(r) != NGX_OK) {
|
|
|
849 return NGX_ERROR;
|
|
|
850 }
|
|
|
851
|
|
356
|
852 ngx_memzero(&u->headers_in, sizeof(ngx_http_upstream_headers_in_t));
|
|
|
853
|
|
|
854 if (ngx_list_init(&u->headers_in.headers, r->pool, 8,
|
|
140
|
855 sizeof(ngx_table_elt_t))
|
|
|
856 != NGX_OK)
|
|
58
|
857 {
|
|
|
858 return NGX_ERROR;
|
|
28
|
859 }
|
|
|
860
|
|
|
861 /* reinit the request chain */
|
|
126
|
862
|
|
58
|
863 for (cl = u->request_bufs; cl; cl = cl->next) {
|
|
28
|
864 cl->buf->pos = cl->buf->start;
|
|
|
865 cl->buf->file_pos = 0;
|
|
|
866 }
|
|
|
867
|
|
58
|
868 /* reinit the subrequest's ngx_output_chain() context */
|
|
|
869
|
|
122
|
870 if (r->request_body && r->request_body->temp_file
|
|
146
|
871 && r != r->main && u->output.buf)
|
|
122
|
872 {
|
|
|
873 u->output.free = ngx_alloc_chain_link(r->pool);
|
|
|
874 if (u->output.free == NULL) {
|
|
|
875 return NGX_ERROR;
|
|
58
|
876 }
|
|
122
|
877
|
|
|
878 u->output.free->buf = u->output.buf;
|
|
|
879 u->output.free->next = NULL;
|
|
|
880
|
|
|
881 u->output.buf->pos = u->output.buf->start;
|
|
|
882 u->output.buf->last = u->output.buf->start;
|
|
58
|
883 }
|
|
28
|
884
|
|
|
885 u->output.buf = NULL;
|
|
|
886 u->output.in = NULL;
|
|
|
887 u->output.busy = NULL;
|
|
126
|
888
|
|
130
|
889 /* reinit u->buffer */
|
|
126
|
890
|
|
28
|
891 #if 0
|
|
|
892 if (u->cache) {
|
|
130
|
893 u->buffer.pos = u->buffer.start + u->cache->ctx.header_size;
|
|
|
894 u->buffer.last = u->buffer.pos;
|
|
28
|
895
|
|
|
896 } else {
|
|
130
|
897 u->buffer.pos = u->buffer.start;
|
|
|
898 u->buffer.last = u->buffer.start;
|
|
28
|
899 }
|
|
|
900 #else
|
|
58
|
901
|
|
130
|
902 u->buffer.pos = u->buffer.start;
|
|
|
903 u->buffer.last = u->buffer.start;
|
|
58
|
904
|
|
28
|
905 #endif
|
|
|
906
|
|
58
|
907 return NGX_OK;
|
|
28
|
908 }
|
|
|
909
|
|
|
910
|
|
36
|
911 static void
|
|
|
912 ngx_http_upstream_send_request(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
28
|
913 {
|
|
294
|
914 ngx_int_t rc;
|
|
32
|
915 ngx_connection_t *c;
|
|
126
|
916
|
|
28
|
917 c = u->peer.connection;
|
|
|
918
|
|
|
919 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
920 "http upstream send request");
|
|
|
921
|
|
294
|
922 if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) {
|
|
296
|
923 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
294
|
924 return;
|
|
28
|
925 }
|
|
|
926
|
|
32
|
927 c->log->action = "sending request to upstream";
|
|
28
|
928
|
|
58
|
929 rc = ngx_output_chain(&u->output, u->request_sent ? NULL : u->request_bufs);
|
|
28
|
930
|
|
|
931 u->request_sent = 1;
|
|
|
932
|
|
|
933 if (rc == NGX_ERROR) {
|
|
|
934 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
|
935 return;
|
|
|
936 }
|
|
|
937
|
|
|
938 if (c->write->timer_set) {
|
|
|
939 ngx_del_timer(c->write);
|
|
|
940 }
|
|
|
941
|
|
|
942 if (rc == NGX_AGAIN) {
|
|
|
943 ngx_add_timer(c->write, u->conf->send_timeout);
|
|
|
944
|
|
|
945 if (ngx_handle_write_event(c->write, u->conf->send_lowat) == NGX_ERROR)
|
|
|
946 {
|
|
|
947 ngx_http_upstream_finalize_request(r, u,
|
|
|
948 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
949 return;
|
|
|
950 }
|
|
|
951
|
|
|
952 return;
|
|
|
953 }
|
|
|
954
|
|
|
955 /* rc == NGX_OK */
|
|
|
956
|
|
|
957 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
|
958 if (ngx_tcp_push(c->fd) == NGX_ERROR) {
|
|
|
959 ngx_log_error(NGX_LOG_CRIT, c->log, ngx_socket_errno,
|
|
|
960 ngx_tcp_push_n " failed");
|
|
|
961 ngx_http_upstream_finalize_request(r, u,
|
|
|
962 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
126
|
963 return;
|
|
28
|
964 }
|
|
|
965
|
|
|
966 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
|
967 }
|
|
126
|
968
|
|
28
|
969 ngx_add_timer(c->read, u->conf->read_timeout);
|
|
|
970
|
|
|
971 #if 1
|
|
|
972 if (c->read->ready) {
|
|
126
|
973
|
|
28
|
974 /* post aio operation */
|
|
|
975
|
|
|
976 /*
|
|
|
977 * TODO comment
|
|
|
978 * although we can post aio operation just in the end
|
|
|
979 * of ngx_http_upstream_connect() CHECK IT !!!
|
|
|
980 * it's better to do here because we postpone header buffer allocation
|
|
|
981 */
|
|
|
982
|
|
|
983 ngx_http_upstream_process_header(c->read);
|
|
|
984 return;
|
|
|
985 }
|
|
|
986 #endif
|
|
|
987
|
|
58
|
988 c->write->handler = ngx_http_upstream_dummy_handler;
|
|
28
|
989
|
|
58
|
990 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
28
|
991 ngx_http_upstream_finalize_request(r, u,
|
|
|
992 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
993 return;
|
|
|
994 }
|
|
|
995 }
|
|
|
996
|
|
|
997
|
|
36
|
998 static void
|
|
|
999 ngx_http_upstream_send_request_handler(ngx_event_t *wev)
|
|
28
|
1000 {
|
|
|
1001 ngx_connection_t *c;
|
|
|
1002 ngx_http_request_t *r;
|
|
|
1003 ngx_http_upstream_t *u;
|
|
|
1004
|
|
|
1005 c = wev->data;
|
|
|
1006 r = c->data;
|
|
|
1007 u = r->upstream;
|
|
|
1008
|
|
|
1009 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1010 "http upstream send request handler");
|
|
|
1011
|
|
|
1012 if (wev->timedout) {
|
|
|
1013 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT);
|
|
|
1014 return;
|
|
|
1015 }
|
|
|
1016
|
|
140
|
1017 #if (NGX_HTTP_SSL)
|
|
|
1018
|
|
348
|
1019 if (u->ssl && c->ssl == NULL) {
|
|
140
|
1020 ngx_http_upstream_ssl_init_connection(r, u, c);
|
|
|
1021 return;
|
|
|
1022 }
|
|
|
1023
|
|
|
1024 #endif
|
|
|
1025
|
|
200
|
1026 if (u->header_sent) {
|
|
|
1027 wev->handler = ngx_http_upstream_dummy_handler;
|
|
|
1028
|
|
|
1029 (void) ngx_handle_write_event(wev, 0);
|
|
|
1030
|
|
|
1031 return;
|
|
|
1032 }
|
|
|
1033
|
|
28
|
1034 ngx_http_upstream_send_request(r, u);
|
|
|
1035 }
|
|
|
1036
|
|
|
1037
|
|
36
|
1038 static void
|
|
|
1039 ngx_http_upstream_process_header(ngx_event_t *rev)
|
|
28
|
1040 {
|
|
64
|
1041 ssize_t n;
|
|
|
1042 ngx_int_t rc;
|
|
122
|
1043 ngx_str_t *uri, args;
|
|
198
|
1044 ngx_uint_t i, flags;
|
|
64
|
1045 ngx_list_part_t *part;
|
|
|
1046 ngx_table_elt_t *h;
|
|
|
1047 ngx_connection_t *c;
|
|
|
1048 ngx_http_request_t *r;
|
|
|
1049 ngx_http_upstream_t *u;
|
|
|
1050 ngx_http_err_page_t *err_page;
|
|
|
1051 ngx_http_core_loc_conf_t *clcf;
|
|
|
1052 ngx_http_upstream_header_t *hh;
|
|
|
1053 ngx_http_upstream_main_conf_t *umcf;
|
|
28
|
1054
|
|
|
1055 c = rev->data;
|
|
|
1056 r = c->data;
|
|
|
1057 u = r->upstream;
|
|
|
1058
|
|
|
1059 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
32
|
1060 "http upstream process header");
|
|
28
|
1061
|
|
32
|
1062 c->log->action = "reading response header from upstream";
|
|
28
|
1063
|
|
|
1064 if (rev->timedout) {
|
|
|
1065 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT);
|
|
|
1066 return;
|
|
|
1067 }
|
|
126
|
1068
|
|
294
|
1069 if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) {
|
|
296
|
1070 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
294
|
1071 return;
|
|
|
1072 }
|
|
|
1073
|
|
130
|
1074 if (u->buffer.start == NULL) {
|
|
|
1075 u->buffer.start = ngx_palloc(r->pool, u->conf->buffer_size);
|
|
|
1076 if (u->buffer.start == NULL) {
|
|
28
|
1077 ngx_http_upstream_finalize_request(r, u,
|
|
|
1078 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1079 return;
|
|
|
1080 }
|
|
|
1081
|
|
130
|
1082 u->buffer.pos = u->buffer.start;
|
|
|
1083 u->buffer.last = u->buffer.start;
|
|
|
1084 u->buffer.end = u->buffer.start + u->conf->buffer_size;
|
|
|
1085 u->buffer.temporary = 1;
|
|
|
1086
|
|
|
1087 u->buffer.tag = u->output.tag;
|
|
28
|
1088
|
|
356
|
1089 if (ngx_list_init(&u->headers_in.headers, r->pool, 8,
|
|
130
|
1090 sizeof(ngx_table_elt_t))
|
|
|
1091 != NGX_OK)
|
|
58
|
1092 {
|
|
|
1093 ngx_http_upstream_finalize_request(r, u,
|
|
|
1094 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1095 return;
|
|
|
1096 }
|
|
|
1097
|
|
28
|
1098 #if 0
|
|
|
1099 if (u->cache) {
|
|
130
|
1100 u->buffer.pos += u->cache->ctx.header_size;
|
|
|
1101 u->buffer.last = u->buffer.pos;
|
|
28
|
1102 }
|
|
|
1103 #endif
|
|
|
1104 }
|
|
|
1105
|
|
340
|
1106 n = c->recv(c, u->buffer.last, u->buffer.end - u->buffer.last);
|
|
28
|
1107
|
|
|
1108 if (n == NGX_AGAIN) {
|
|
|
1109 #if 0
|
|
|
1110 ngx_add_timer(rev, u->read_timeout);
|
|
|
1111 #endif
|
|
|
1112
|
|
|
1113 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
1114 ngx_http_upstream_finalize_request(r, u,
|
|
|
1115 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1116 return;
|
|
|
1117 }
|
|
|
1118
|
|
|
1119 return;
|
|
|
1120 }
|
|
|
1121
|
|
|
1122 if (n == 0) {
|
|
|
1123 ngx_log_error(NGX_LOG_ERR, rev->log, 0,
|
|
|
1124 "upstream prematurely closed connection");
|
|
|
1125 }
|
|
|
1126
|
|
|
1127 if (n == NGX_ERROR || n == 0) {
|
|
|
1128 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
|
1129 return;
|
|
|
1130 }
|
|
|
1131
|
|
130
|
1132 u->buffer.last += n;
|
|
28
|
1133
|
|
|
1134 #if 0
|
|
|
1135 u->valid_header_in = 0;
|
|
|
1136
|
|
|
1137 u->peer.cached = 0;
|
|
|
1138 #endif
|
|
|
1139
|
|
|
1140 rc = u->process_header(r);
|
|
|
1141
|
|
|
1142 if (rc == NGX_AGAIN) {
|
|
|
1143 #if 0
|
|
|
1144 ngx_add_timer(rev, u->read_timeout);
|
|
|
1145 #endif
|
|
|
1146
|
|
130
|
1147 if (u->buffer.pos == u->buffer.end) {
|
|
28
|
1148 ngx_log_error(NGX_LOG_ERR, rev->log, 0,
|
|
|
1149 "upstream sent too big header");
|
|
|
1150
|
|
|
1151 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER);
|
|
|
1152 return;
|
|
|
1153 }
|
|
|
1154
|
|
|
1155 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
1156 ngx_http_upstream_finalize_request(r, u,
|
|
|
1157 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1158 return;
|
|
|
1159 }
|
|
|
1160
|
|
|
1161 return;
|
|
|
1162 }
|
|
|
1163
|
|
|
1164 if (rc == NGX_HTTP_UPSTREAM_INVALID_HEADER) {
|
|
|
1165 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER);
|
|
|
1166 return;
|
|
|
1167 }
|
|
|
1168
|
|
356
|
1169 if (rc == NGX_ERROR) {
|
|
28
|
1170 ngx_http_upstream_finalize_request(r, u,
|
|
|
1171 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1172 return;
|
|
|
1173 }
|
|
|
1174
|
|
|
1175 /* rc == NGX_OK */
|
|
|
1176
|
|
248
|
1177 if (u->headers_in.status_n >= NGX_HTTP_BAD_REQUEST
|
|
|
1178 && r->subrequest_in_memory)
|
|
|
1179 {
|
|
|
1180 u->buffer.last = u->buffer.pos;
|
|
|
1181 }
|
|
|
1182
|
|
78
|
1183 if (u->headers_in.status_n == NGX_HTTP_INTERNAL_SERVER_ERROR) {
|
|
58
|
1184
|
|
|
1185 if (u->peer.tries > 1
|
|
|
1186 && (u->conf->next_upstream & NGX_HTTP_UPSTREAM_FT_HTTP_500))
|
|
|
1187 {
|
|
|
1188 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_HTTP_500);
|
|
|
1189 return;
|
|
|
1190 }
|
|
|
1191
|
|
|
1192 #if (NGX_HTTP_CACHE)
|
|
|
1193
|
|
|
1194 if (u->peer.tries == 0
|
|
|
1195 && u->stale
|
|
|
1196 && (u->conf->use_stale & NGX_HTTP_UPSTREAM_FT_HTTP_500))
|
|
|
1197 {
|
|
|
1198 ngx_http_upstream_finalize_request(r, u,
|
|
78
|
1199 ngx_http_send_cached_response(r));
|
|
58
|
1200 return;
|
|
|
1201 }
|
|
|
1202
|
|
|
1203 #endif
|
|
|
1204 }
|
|
|
1205
|
|
146
|
1206 if (u->headers_in.status_n == NGX_HTTP_NOT_FOUND) {
|
|
|
1207
|
|
|
1208 if (u->peer.tries > 1
|
|
|
1209 && u->conf->next_upstream & NGX_HTTP_UPSTREAM_FT_HTTP_404)
|
|
|
1210 {
|
|
|
1211 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_HTTP_404);
|
|
|
1212 return;
|
|
|
1213 }
|
|
|
1214
|
|
224
|
1215 if (u->conf->intercept_404) {
|
|
|
1216 ngx_http_upstream_finalize_request(r, u, NGX_HTTP_NOT_FOUND);
|
|
146
|
1217 return;
|
|
|
1218 }
|
|
58
|
1219 }
|
|
|
1220
|
|
|
1221
|
|
78
|
1222 if (u->headers_in.status_n >= NGX_HTTP_BAD_REQUEST
|
|
224
|
1223 && u->conf->intercept_errors)
|
|
36
|
1224 {
|
|
|
1225 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1226
|
|
|
1227 if (clcf->error_pages) {
|
|
|
1228
|
|
|
1229 err_page = clcf->error_pages->elts;
|
|
|
1230 for (i = 0; i < clcf->error_pages->nelts; i++) {
|
|
78
|
1231 if (err_page[i].status == (ngx_int_t) u->headers_in.status_n) {
|
|
|
1232
|
|
|
1233 if (u->headers_in.status_n == NGX_HTTP_UNAUTHORIZED) {
|
|
|
1234
|
|
|
1235 r->headers_out.www_authenticate =
|
|
|
1236 ngx_list_push(&r->headers_out.headers);
|
|
|
1237
|
|
|
1238 if (r->headers_out.www_authenticate == NULL) {
|
|
|
1239 ngx_http_upstream_finalize_request(r, u,
|
|
|
1240 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1241 return;
|
|
|
1242 }
|
|
|
1243
|
|
126
|
1244 *r->headers_out.www_authenticate =
|
|
78
|
1245 *u->headers_in.www_authenticate;
|
|
|
1246 }
|
|
|
1247
|
|
36
|
1248 ngx_http_upstream_finalize_request(r, u,
|
|
78
|
1249 u->headers_in.status_n);
|
|
36
|
1250 return;
|
|
|
1251 }
|
|
|
1252 }
|
|
|
1253 }
|
|
|
1254 }
|
|
|
1255
|
|
230
|
1256 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module);
|
|
|
1257
|
|
356
|
1258 if (u->headers_in.x_accel_redirect) {
|
|
244
|
1259
|
|
64
|
1260 ngx_http_upstream_finalize_request(r, u, NGX_DECLINED);
|
|
|
1261
|
|
356
|
1262 part = &u->headers_in.headers.part;
|
|
64
|
1263 h = part->elts;
|
|
|
1264
|
|
|
1265 for (i = 0; /* void */; i++) {
|
|
|
1266
|
|
|
1267 if (i >= part->nelts) {
|
|
|
1268 if (part->next == NULL) {
|
|
|
1269 break;
|
|
|
1270 }
|
|
126
|
1271
|
|
64
|
1272 part = part->next;
|
|
|
1273 h = part->elts;
|
|
|
1274 i = 0;
|
|
|
1275 }
|
|
|
1276
|
|
198
|
1277 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash,
|
|
|
1278 h[i].lowcase_key, h[i].key.len);
|
|
|
1279
|
|
|
1280 if (hh && hh->redirect) {
|
|
|
1281 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) {
|
|
250
|
1282 ngx_http_finalize_request(r,
|
|
244
|
1283 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
64
|
1284 return;
|
|
|
1285 }
|
|
|
1286 }
|
|
|
1287 }
|
|
|
1288
|
|
356
|
1289 uri = &u->headers_in.x_accel_redirect->value;
|
|
122
|
1290 args.len = 0;
|
|
|
1291 args.data = NULL;
|
|
|
1292 flags = 0;
|
|
|
1293
|
|
|
1294 if (ngx_http_parse_unsafe_uri(r, uri, &args, &flags) != NGX_OK) {
|
|
244
|
1295 ngx_http_finalize_request(r, NGX_HTTP_NOT_FOUND);
|
|
122
|
1296 return;
|
|
|
1297 }
|
|
|
1298
|
|
|
1299 if (flags & NGX_HTTP_ZERO_IN_URI) {
|
|
|
1300 r->zero_in_uri = 1;
|
|
|
1301 }
|
|
|
1302
|
|
202
|
1303 if (r->method != NGX_HTTP_HEAD) {
|
|
|
1304 r->method = NGX_HTTP_GET;
|
|
|
1305 }
|
|
|
1306
|
|
398
|
1307 r->valid_unparsed_uri = 0;
|
|
|
1308
|
|
122
|
1309 ngx_http_internal_redirect(r, uri, &args);
|
|
64
|
1310 return;
|
|
|
1311 }
|
|
|
1312
|
|
356
|
1313 part = &u->headers_in.headers.part;
|
|
58
|
1314 h = part->elts;
|
|
|
1315
|
|
|
1316 for (i = 0; /* void */; i++) {
|
|
28
|
1317
|
|
58
|
1318 if (i >= part->nelts) {
|
|
|
1319 if (part->next == NULL) {
|
|
|
1320 break;
|
|
|
1321 }
|
|
126
|
1322
|
|
58
|
1323 part = part->next;
|
|
|
1324 h = part->elts;
|
|
|
1325 i = 0;
|
|
|
1326 }
|
|
|
1327
|
|
198
|
1328 if (ngx_hash_find(&u->conf->hide_headers_hash, h[i].hash,
|
|
|
1329 h[i].lowcase_key, h[i].key.len))
|
|
58
|
1330 {
|
|
198
|
1331 continue;
|
|
|
1332 }
|
|
|
1333
|
|
|
1334 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash,
|
|
|
1335 h[i].lowcase_key, h[i].key.len);
|
|
|
1336
|
|
|
1337 if (hh) {
|
|
|
1338 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) {
|
|
58
|
1339 ngx_http_upstream_finalize_request(r, u,
|
|
|
1340 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1341 return;
|
|
|
1342 }
|
|
|
1343
|
|
|
1344 continue;
|
|
|
1345 }
|
|
|
1346
|
|
|
1347 if (ngx_http_upstream_copy_header_line(r, &h[i], 0) != NGX_OK) {
|
|
|
1348 ngx_http_upstream_finalize_request(r, u,
|
|
|
1349 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1350 return;
|
|
|
1351 }
|
|
|
1352 }
|
|
|
1353
|
|
198
|
1354 if (r->headers_out.server && r->headers_out.server->value.data == NULL) {
|
|
|
1355 r->headers_out.server->hash = 0;
|
|
|
1356 }
|
|
|
1357
|
|
|
1358 if (r->headers_out.date && r->headers_out.date->value.data == NULL) {
|
|
|
1359 r->headers_out.date->hash = 0;
|
|
|
1360 }
|
|
|
1361
|
|
78
|
1362 r->headers_out.status = u->headers_in.status_n;
|
|
|
1363 r->headers_out.status_line = u->headers_in.status_line;
|
|
|
1364
|
|
364
|
1365 u->headers_in.content_length_n = r->headers_out.content_length_n;
|
|
|
1366
|
|
130
|
1367 if (r->headers_out.content_length_n != -1) {
|
|
|
1368 u->length = (size_t) r->headers_out.content_length_n;
|
|
|
1369
|
|
|
1370 } else {
|
|
|
1371 u->length = NGX_MAX_SIZE_T_VALUE;
|
|
|
1372 }
|
|
|
1373
|
|
248
|
1374 if (!r->subrequest_in_memory) {
|
|
|
1375 ngx_http_upstream_send_response(r, u);
|
|
|
1376 return;
|
|
|
1377 }
|
|
|
1378
|
|
|
1379 /* subrequest content in memory */
|
|
|
1380
|
|
|
1381 if (u->input_filter == NULL) {
|
|
|
1382 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init;
|
|
|
1383 u->input_filter = ngx_http_upstream_non_buffered_filter;
|
|
|
1384 u->input_filter_ctx = r;
|
|
|
1385 }
|
|
|
1386
|
|
|
1387 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) {
|
|
|
1388 ngx_http_upstream_finalize_request(r, u,
|
|
|
1389 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1390 return;
|
|
|
1391 }
|
|
|
1392
|
|
|
1393 if (u->buffer.last - u->buffer.pos >= (ssize_t) u->length) {
|
|
|
1394 if (u->input_filter(u->input_filter_ctx, 0) == NGX_ERROR) {
|
|
|
1395 ngx_http_upstream_finalize_request(r, u, NGX_ERROR);
|
|
|
1396 return;
|
|
|
1397 }
|
|
|
1398
|
|
|
1399 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1400 return;
|
|
|
1401 }
|
|
|
1402
|
|
|
1403 rev->handler = ngx_http_upstream_process_body_in_memory;
|
|
|
1404
|
|
|
1405 ngx_http_upstream_process_body_in_memory(rev);
|
|
|
1406 }
|
|
|
1407
|
|
|
1408
|
|
294
|
1409 static ngx_int_t
|
|
|
1410 ngx_http_upstream_test_connect(ngx_connection_t *c)
|
|
|
1411 {
|
|
|
1412 int err;
|
|
|
1413 socklen_t len;
|
|
|
1414
|
|
|
1415 #if (NGX_HAVE_KQUEUE)
|
|
|
1416
|
|
|
1417 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
296
|
1418 if (c->write->pending_eof) {
|
|
336
|
1419 c->log->action = "connecting to upstream";
|
|
296
|
1420 (void) ngx_connection_error(c, c->write->kq_errno,
|
|
|
1421 "kevent() reported that connect() failed");
|
|
|
1422 return NGX_ERROR;
|
|
|
1423 }
|
|
294
|
1424
|
|
|
1425 } else
|
|
|
1426 #endif
|
|
|
1427 {
|
|
296
|
1428 err = 0;
|
|
|
1429 len = sizeof(int);
|
|
|
1430
|
|
|
1431 /*
|
|
|
1432 * BSDs and Linux return 0 and set a pending error in err
|
|
|
1433 * Solaris returns -1 and sets errno
|
|
|
1434 */
|
|
|
1435
|
|
|
1436 if (getsockopt(c->fd, SOL_SOCKET, SO_ERROR, (void *) &err, &len)
|
|
|
1437 == -1)
|
|
|
1438 {
|
|
|
1439 err = ngx_errno;
|
|
|
1440 }
|
|
|
1441
|
|
|
1442 if (err) {
|
|
336
|
1443 c->log->action = "connecting to upstream";
|
|
296
|
1444 (void) ngx_connection_error(c, err, "connect() failed");
|
|
|
1445 return NGX_ERROR;
|
|
|
1446 }
|
|
294
|
1447 }
|
|
|
1448
|
|
|
1449 return NGX_OK;
|
|
|
1450 }
|
|
|
1451
|
|
|
1452
|
|
248
|
1453 static void
|
|
|
1454 ngx_http_upstream_process_body_in_memory(ngx_event_t *rev)
|
|
|
1455 {
|
|
|
1456 size_t size;
|
|
|
1457 ssize_t n;
|
|
|
1458 ngx_buf_t *b;
|
|
|
1459 ngx_connection_t *c;
|
|
|
1460 ngx_http_request_t *r;
|
|
|
1461 ngx_http_upstream_t *u;
|
|
|
1462
|
|
|
1463 c = rev->data;
|
|
|
1464 r = c->data;
|
|
|
1465 u = r->upstream;
|
|
|
1466
|
|
|
1467 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1468 "http upstream process body on memory");
|
|
|
1469
|
|
|
1470 if (rev->timedout) {
|
|
|
1471 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out");
|
|
|
1472 ngx_http_upstream_finalize_request(r, u, NGX_ETIMEDOUT);
|
|
|
1473 return;
|
|
|
1474 }
|
|
|
1475
|
|
|
1476 b = &u->buffer;
|
|
|
1477
|
|
|
1478 for ( ;; ) {
|
|
|
1479
|
|
|
1480 size = b->end - b->last;
|
|
|
1481
|
|
|
1482 if (size == 0) {
|
|
|
1483 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
|
|
|
1484 "upstream buffer is too small to read repsonse");
|
|
|
1485 ngx_http_upstream_finalize_request(r, u, NGX_ERROR);
|
|
|
1486 return;
|
|
|
1487 }
|
|
|
1488
|
|
|
1489 n = c->recv(c, b->last, size);
|
|
|
1490
|
|
|
1491 if (n == NGX_AGAIN) {
|
|
|
1492 break;
|
|
|
1493 }
|
|
|
1494
|
|
|
1495 if (n == 0 || n == NGX_ERROR) {
|
|
|
1496 ngx_http_upstream_finalize_request(r, u, n);
|
|
|
1497 return;
|
|
|
1498 }
|
|
|
1499
|
|
|
1500 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) {
|
|
|
1501 ngx_http_upstream_finalize_request(r, u, NGX_ERROR);
|
|
|
1502 return;
|
|
|
1503 }
|
|
|
1504
|
|
|
1505 if (!rev->ready) {
|
|
|
1506 break;
|
|
|
1507 }
|
|
|
1508 }
|
|
|
1509
|
|
|
1510 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
1511 ngx_http_upstream_finalize_request(r, u, NGX_ERROR);
|
|
|
1512 return;
|
|
|
1513 }
|
|
|
1514
|
|
|
1515 if (rev->active) {
|
|
|
1516 ngx_add_timer(rev, u->conf->read_timeout);
|
|
|
1517
|
|
|
1518 } else if (rev->timer_set) {
|
|
|
1519 ngx_del_timer(rev);
|
|
|
1520 }
|
|
230
|
1521 }
|
|
|
1522
|
|
|
1523
|
|
|
1524 static void
|
|
|
1525 ngx_http_upstream_send_response(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
|
1526 {
|
|
|
1527 int tcp_nodelay;
|
|
|
1528 ssize_t size;
|
|
|
1529 ngx_int_t rc;
|
|
|
1530 ngx_event_pipe_t *p;
|
|
|
1531 ngx_connection_t *c;
|
|
|
1532 ngx_pool_cleanup_t *cl;
|
|
|
1533 ngx_pool_cleanup_file_t *clf;
|
|
|
1534 ngx_http_core_loc_conf_t *clcf;
|
|
|
1535
|
|
58
|
1536 rc = ngx_http_send_header(r);
|
|
28
|
1537
|
|
274
|
1538 if (rc == NGX_ERROR || rc > NGX_OK || r->post_action || r->header_only) {
|
|
34
|
1539 ngx_http_upstream_finalize_request(r, u, rc);
|
|
28
|
1540 return;
|
|
|
1541 }
|
|
|
1542
|
|
|
1543 u->header_sent = 1;
|
|
|
1544
|
|
122
|
1545 if (r->request_body && r->request_body->temp_file) {
|
|
112
|
1546 for (cl = r->pool->cleanup; cl; cl = cl->next) {
|
|
|
1547 if (cl->handler == ngx_pool_cleanup_file) {
|
|
|
1548 clf = cl->data;
|
|
|
1549
|
|
|
1550 if (clf->fd == r->request_body->temp_file->file.fd) {
|
|
|
1551 cl->handler(clf);
|
|
|
1552 cl->handler = NULL;
|
|
208
|
1553 r->request_body->temp_file->file.fd = NGX_INVALID_FILE;
|
|
112
|
1554 break;
|
|
|
1555 }
|
|
|
1556 }
|
|
|
1557 }
|
|
|
1558 }
|
|
|
1559
|
|
132
|
1560 c = r->connection;
|
|
|
1561
|
|
130
|
1562 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1563
|
|
198
|
1564 if (!u->buffering) {
|
|
130
|
1565
|
|
|
1566 if (u->input_filter == NULL) {
|
|
|
1567 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init;
|
|
|
1568 u->input_filter = ngx_http_upstream_non_buffered_filter;
|
|
|
1569 u->input_filter_ctx = r;
|
|
|
1570 }
|
|
|
1571
|
|
|
1572 u->peer.connection->read->handler =
|
|
|
1573 ngx_http_upstream_process_non_buffered_body;
|
|
|
1574 r->write_event_handler =
|
|
|
1575 ngx_http_upstream_process_non_buffered_downstream;
|
|
|
1576
|
|
|
1577 r->limit_rate = 0;
|
|
|
1578
|
|
|
1579 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) {
|
|
|
1580 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1581 return;
|
|
|
1582 }
|
|
|
1583
|
|
132
|
1584 if (clcf->tcp_nodelay && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET) {
|
|
|
1585 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
1586
|
|
|
1587 tcp_nodelay = 1;
|
|
|
1588
|
|
|
1589 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
|
1590 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
|
1591 {
|
|
|
1592 ngx_connection_error(c, ngx_socket_errno,
|
|
|
1593 "setsockopt(TCP_NODELAY) failed");
|
|
|
1594 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1595 return;
|
|
|
1596 }
|
|
|
1597
|
|
|
1598 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
|
1599 }
|
|
|
1600
|
|
130
|
1601 size = u->buffer.last - u->buffer.pos;
|
|
|
1602
|
|
|
1603 if (size) {
|
|
|
1604 u->buffer.last = u->buffer.pos;
|
|
|
1605
|
|
|
1606 if (u->input_filter(u->input_filter_ctx, size) == NGX_ERROR) {
|
|
|
1607 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1608 return;
|
|
|
1609 }
|
|
|
1610
|
|
132
|
1611 ngx_http_upstream_process_non_buffered_body(c->write);
|
|
130
|
1612
|
|
|
1613 } else {
|
|
|
1614 u->buffer.pos = u->buffer.start;
|
|
|
1615 u->buffer.last = u->buffer.start;
|
|
|
1616
|
|
|
1617 if (ngx_http_send_special(r, NGX_HTTP_FLUSH) == NGX_ERROR) {
|
|
|
1618 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1619 return;
|
|
|
1620 }
|
|
336
|
1621
|
|
|
1622 if (u->peer.connection->read->ready) {
|
|
|
1623 ngx_http_upstream_process_non_buffered_body(
|
|
|
1624 u->peer.connection->read);
|
|
|
1625 }
|
|
130
|
1626 }
|
|
|
1627
|
|
|
1628 return;
|
|
|
1629 }
|
|
|
1630
|
|
28
|
1631 /* TODO: preallocate event_pipe bufs, look "Content-Length" */
|
|
|
1632
|
|
|
1633 #if 0
|
|
|
1634
|
|
|
1635 if (u->cache && u->cache->ctx.file.fd != NGX_INVALID_FILE) {
|
|
|
1636 if (ngx_close_file(u->cache->ctx.file.fd) == NGX_FILE_ERROR) {
|
|
132
|
1637 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno,
|
|
28
|
1638 ngx_close_file_n " \"%s\" failed",
|
|
|
1639 u->cache->ctx.file.name.data);
|
|
|
1640 }
|
|
|
1641 }
|
|
|
1642
|
|
340
|
1643 if (u->cacheable) {
|
|
130
|
1644 header = (ngx_http_cache_header_t *) u->buffer->start;
|
|
28
|
1645
|
|
|
1646 header->expires = u->cache->ctx.expires;
|
|
|
1647 header->last_modified = u->cache->ctx.last_modified;
|
|
|
1648 header->date = u->cache->ctx.date;
|
|
|
1649 header->length = r->headers_out.content_length_n;
|
|
|
1650 u->cache->ctx.length = r->headers_out.content_length_n;
|
|
|
1651
|
|
|
1652 header->key_len = u->cache->ctx.key0.len;
|
|
|
1653 ngx_memcpy(&header->key, u->cache->ctx.key0.data, header->key_len);
|
|
|
1654 header->key[header->key_len] = LF;
|
|
|
1655 }
|
|
|
1656
|
|
|
1657 #endif
|
|
|
1658
|
|
130
|
1659 p = u->pipe;
|
|
28
|
1660
|
|
|
1661 p->output_filter = (ngx_event_pipe_output_filter_pt) ngx_http_output_filter;
|
|
|
1662 p->output_ctx = r;
|
|
|
1663 p->tag = u->output.tag;
|
|
126
|
1664 p->bufs = u->conf->bufs;
|
|
28
|
1665 p->busy_size = u->conf->busy_buffers_size;
|
|
|
1666 p->upstream = u->peer.connection;
|
|
132
|
1667 p->downstream = c;
|
|
28
|
1668 p->pool = r->pool;
|
|
132
|
1669 p->log = c->log;
|
|
126
|
1670
|
|
340
|
1671 p->cacheable = u->cacheable || u->store;
|
|
28
|
1672
|
|
50
|
1673 p->temp_file = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t));
|
|
|
1674 if (p->temp_file == NULL) {
|
|
28
|
1675 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1676 return;
|
|
|
1677 }
|
|
|
1678
|
|
|
1679 p->temp_file->file.fd = NGX_INVALID_FILE;
|
|
132
|
1680 p->temp_file->file.log = c->log;
|
|
28
|
1681 p->temp_file->path = u->conf->temp_path;
|
|
|
1682 p->temp_file->pool = r->pool;
|
|
126
|
1683
|
|
340
|
1684 if (u->cacheable || u->store) {
|
|
28
|
1685 p->temp_file->persistent = 1;
|
|
318
|
1686
|
|
28
|
1687 } else {
|
|
216
|
1688 p->temp_file->log_level = NGX_LOG_WARN;
|
|
28
|
1689 p->temp_file->warn = "an upstream response is buffered "
|
|
|
1690 "to a temporary file";
|
|
|
1691 }
|
|
|
1692
|
|
|
1693 p->max_temp_file_size = u->conf->max_temp_file_size;
|
|
|
1694 p->temp_file_write_size = u->conf->temp_file_write_size;
|
|
|
1695
|
|
50
|
1696 p->preread_bufs = ngx_alloc_chain_link(r->pool);
|
|
|
1697 if (p->preread_bufs == NULL) {
|
|
28
|
1698 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1699 return;
|
|
|
1700 }
|
|
318
|
1701
|
|
130
|
1702 p->preread_bufs->buf = &u->buffer;
|
|
28
|
1703 p->preread_bufs->next = NULL;
|
|
130
|
1704 u->buffer.recycled = 1;
|
|
|
1705
|
|
|
1706 p->preread_size = u->buffer.last - u->buffer.pos;
|
|
28
|
1707
|
|
340
|
1708 if (u->cacheable) {
|
|
318
|
1709
|
|
28
|
1710 p->buf_to_file = ngx_calloc_buf(r->pool);
|
|
|
1711 if (p->buf_to_file == NULL) {
|
|
|
1712 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1713 return;
|
|
|
1714 }
|
|
318
|
1715
|
|
130
|
1716 p->buf_to_file->pos = u->buffer.start;
|
|
|
1717 p->buf_to_file->last = u->buffer.pos;
|
|
28
|
1718 p->buf_to_file->temporary = 1;
|
|
|
1719 }
|
|
|
1720
|
|
|
1721 if (ngx_event_flags & NGX_USE_AIO_EVENT) {
|
|
|
1722 /* the posted aio operation may currupt a shadow buffer */
|
|
|
1723 p->single_buf = 1;
|
|
|
1724 }
|
|
|
1725
|
|
|
1726 /* TODO: p->free_bufs = 0 if use ngx_create_chain_of_bufs() */
|
|
|
1727 p->free_bufs = 1;
|
|
|
1728
|
|
|
1729 /*
|
|
130
|
1730 * event_pipe would do u->buffer.last += p->preread_size
|
|
28
|
1731 * as though these bytes were read
|
|
|
1732 */
|
|
130
|
1733 u->buffer.last = u->buffer.pos;
|
|
28
|
1734
|
|
|
1735 if (u->conf->cyclic_temp_file) {
|
|
|
1736
|
|
|
1737 /*
|
|
|
1738 * we need to disable the use of sendfile() if we use cyclic temp file
|
|
|
1739 * because the writing a new data may interfere with sendfile()
|
|
|
1740 * that uses the same kernel file pages (at least on FreeBSD)
|
|
|
1741 */
|
|
|
1742
|
|
|
1743 p->cyclic_temp_file = 1;
|
|
132
|
1744 c->sendfile = 0;
|
|
28
|
1745
|
|
|
1746 } else {
|
|
|
1747 p->cyclic_temp_file = 0;
|
|
|
1748 }
|
|
|
1749
|
|
|
1750 p->read_timeout = u->conf->read_timeout;
|
|
|
1751 p->send_timeout = clcf->send_timeout;
|
|
|
1752 p->send_lowat = clcf->send_lowat;
|
|
|
1753
|
|
58
|
1754 u->peer.connection->read->handler = ngx_http_upstream_process_body;
|
|
|
1755 r->write_event_handler = ngx_http_upstream_process_downstream;
|
|
28
|
1756
|
|
|
1757 ngx_http_upstream_process_body(u->peer.connection->read);
|
|
|
1758 }
|
|
|
1759
|
|
|
1760
|
|
36
|
1761 static void
|
|
130
|
1762 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r)
|
|
|
1763 {
|
|
|
1764 ngx_http_upstream_process_non_buffered_body(r->connection->write);
|
|
|
1765 }
|
|
|
1766
|
|
|
1767
|
|
|
1768 static void
|
|
|
1769 ngx_http_upstream_process_non_buffered_body(ngx_event_t *ev)
|
|
|
1770 {
|
|
|
1771 size_t size;
|
|
|
1772 ssize_t n;
|
|
|
1773 ngx_buf_t *b;
|
|
132
|
1774 ngx_int_t rc;
|
|
130
|
1775 ngx_uint_t do_write;
|
|
260
|
1776 ngx_connection_t *c, *downstream, *upstream;
|
|
130
|
1777 ngx_http_request_t *r;
|
|
|
1778 ngx_http_upstream_t *u;
|
|
|
1779 ngx_http_core_loc_conf_t *clcf;
|
|
|
1780
|
|
|
1781 c = ev->data;
|
|
244
|
1782 r = c->data;
|
|
|
1783 u = r->upstream;
|
|
130
|
1784
|
|
|
1785 if (ev->write) {
|
|
|
1786 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1787 "http upstream process non buffered downstream");
|
|
|
1788 c->log->action = "sending to client";
|
|
|
1789
|
|
|
1790 } else {
|
|
|
1791 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1792 "http upstream process non buffered upstream");
|
|
|
1793 c->log->action = "reading upstream";
|
|
|
1794 }
|
|
|
1795
|
|
|
1796 if (ev->timedout) {
|
|
|
1797 if (ev->write) {
|
|
|
1798 c->timedout = 1;
|
|
160
|
1799 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out");
|
|
|
1800
|
|
130
|
1801 } else {
|
|
160
|
1802 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out");
|
|
130
|
1803 }
|
|
244
|
1804
|
|
|
1805 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1806 return;
|
|
130
|
1807 }
|
|
|
1808
|
|
260
|
1809 downstream = r->connection;
|
|
|
1810 upstream = u->peer.connection;
|
|
130
|
1811
|
|
|
1812 b = &u->buffer;
|
|
|
1813
|
|
|
1814 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1815
|
|
206
|
1816 do_write = ev->write || u->length == 0;
|
|
130
|
1817
|
|
|
1818 for ( ;; ) {
|
|
|
1819
|
|
|
1820 if (do_write) {
|
|
|
1821
|
|
|
1822 if (u->out_bufs || u->busy_bufs) {
|
|
132
|
1823 rc = ngx_http_output_filter(r, u->out_bufs);
|
|
|
1824
|
|
260
|
1825 if (downstream->destroyed) {
|
|
132
|
1826 return;
|
|
|
1827 }
|
|
|
1828
|
|
|
1829 if (rc == NGX_ERROR) {
|
|
130
|
1830 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1831 return;
|
|
|
1832 }
|
|
|
1833
|
|
|
1834 ngx_chain_update_chains(&u->free_bufs, &u->busy_bufs,
|
|
|
1835 &u->out_bufs, u->output.tag);
|
|
|
1836 }
|
|
|
1837
|
|
|
1838 if (u->busy_bufs == NULL) {
|
|
|
1839
|
|
|
1840 if (u->length == 0
|
|
260
|
1841 || upstream->read->eof
|
|
|
1842 || upstream->read->error)
|
|
130
|
1843 {
|
|
|
1844 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1845 return;
|
|
|
1846 }
|
|
|
1847
|
|
|
1848 b->pos = b->start;
|
|
|
1849 b->last = b->start;
|
|
|
1850 }
|
|
|
1851 }
|
|
|
1852
|
|
|
1853 size = b->end - b->last;
|
|
|
1854
|
|
|
1855 if (size > u->length) {
|
|
|
1856 size = u->length;
|
|
|
1857 }
|
|
|
1858
|
|
260
|
1859 if (size && upstream->read->ready) {
|
|
|
1860
|
|
|
1861 n = upstream->recv(upstream, b->last, size);
|
|
130
|
1862
|
|
|
1863 if (n == NGX_AGAIN) {
|
|
|
1864 break;
|
|
|
1865 }
|
|
|
1866
|
|
|
1867 if (n > 0) {
|
|
|
1868 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) {
|
|
|
1869 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1870 return;
|
|
|
1871 }
|
|
|
1872 }
|
|
|
1873
|
|
|
1874 do_write = 1;
|
|
|
1875
|
|
|
1876 continue;
|
|
|
1877 }
|
|
|
1878
|
|
|
1879 break;
|
|
|
1880 }
|
|
|
1881
|
|
260
|
1882 if (downstream->data == r) {
|
|
|
1883 if (ngx_handle_write_event(downstream->write, clcf->send_lowat)
|
|
132
|
1884 == NGX_ERROR)
|
|
|
1885 {
|
|
|
1886 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1887 return;
|
|
|
1888 }
|
|
130
|
1889 }
|
|
|
1890
|
|
276
|
1891 if (downstream->write->active && !downstream->write->ready) {
|
|
260
|
1892 ngx_add_timer(downstream->write, clcf->send_timeout);
|
|
|
1893
|
|
|
1894 } else if (downstream->write->timer_set) {
|
|
|
1895 ngx_del_timer(downstream->write);
|
|
130
|
1896 }
|
|
|
1897
|
|
260
|
1898 if (ngx_handle_read_event(upstream->read, 0) == NGX_ERROR) {
|
|
130
|
1899 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1900 return;
|
|
|
1901 }
|
|
|
1902
|
|
276
|
1903 if (upstream->read->active && !upstream->read->ready) {
|
|
260
|
1904 ngx_add_timer(upstream->read, u->conf->read_timeout);
|
|
|
1905
|
|
|
1906 } else if (upstream->read->timer_set) {
|
|
|
1907 ngx_del_timer(upstream->read);
|
|
130
|
1908 }
|
|
|
1909 }
|
|
|
1910
|
|
|
1911
|
|
|
1912 static ngx_int_t
|
|
|
1913 ngx_http_upstream_non_buffered_filter_init(void *data)
|
|
|
1914 {
|
|
|
1915 return NGX_OK;
|
|
|
1916 }
|
|
|
1917
|
|
|
1918
|
|
|
1919 static ngx_int_t
|
|
|
1920 ngx_http_upstream_non_buffered_filter(void *data, ssize_t bytes)
|
|
|
1921 {
|
|
|
1922 ngx_http_request_t *r = data;
|
|
|
1923
|
|
|
1924 ngx_buf_t *b;
|
|
|
1925 ngx_chain_t *cl, **ll;
|
|
|
1926 ngx_http_upstream_t *u;
|
|
|
1927
|
|
|
1928 u = r->upstream;
|
|
|
1929
|
|
|
1930 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) {
|
|
|
1931 ll = &cl->next;
|
|
|
1932 }
|
|
|
1933
|
|
|
1934 cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs);
|
|
|
1935 if (cl == NULL) {
|
|
|
1936 return NGX_ERROR;
|
|
|
1937 }
|
|
|
1938
|
|
|
1939 *ll = cl;
|
|
|
1940
|
|
|
1941 cl->buf->flush = 1;
|
|
|
1942 cl->buf->memory = 1;
|
|
|
1943
|
|
|
1944 b = &u->buffer;
|
|
|
1945
|
|
|
1946 cl->buf->pos = b->last;
|
|
|
1947 b->last += bytes;
|
|
|
1948 cl->buf->last = b->last;
|
|
366
|
1949 cl->buf->tag = u->output.tag;
|
|
130
|
1950
|
|
|
1951 if (u->length == NGX_MAX_SIZE_T_VALUE) {
|
|
|
1952 return NGX_OK;
|
|
|
1953 }
|
|
|
1954
|
|
|
1955 u->length -= bytes;
|
|
|
1956
|
|
|
1957 return NGX_OK;
|
|
|
1958 }
|
|
|
1959
|
|
|
1960
|
|
|
1961 static void
|
|
58
|
1962 ngx_http_upstream_process_downstream(ngx_http_request_t *r)
|
|
|
1963 {
|
|
|
1964 ngx_http_upstream_process_body(r->connection->write);
|
|
|
1965 }
|
|
|
1966
|
|
|
1967
|
|
|
1968 static void
|
|
36
|
1969 ngx_http_upstream_process_body(ngx_event_t *ev)
|
|
28
|
1970 {
|
|
364
|
1971 ngx_temp_file_t *tf;
|
|
58
|
1972 ngx_event_pipe_t *p;
|
|
132
|
1973 ngx_connection_t *c, *downstream;
|
|
284
|
1974 ngx_http_log_ctx_t *ctx;
|
|
28
|
1975 ngx_http_request_t *r;
|
|
|
1976 ngx_http_upstream_t *u;
|
|
|
1977
|
|
|
1978 c = ev->data;
|
|
|
1979 r = c->data;
|
|
|
1980 u = r->upstream;
|
|
132
|
1981 downstream = r->connection;
|
|
28
|
1982
|
|
|
1983 if (ev->write) {
|
|
32
|
1984 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1985 "http upstream process downstream");
|
|
|
1986 c->log->action = "sending to client";
|
|
126
|
1987
|
|
28
|
1988 } else {
|
|
32
|
1989 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1990 "http upstream process upstream");
|
|
|
1991 c->log->action = "reading upstream";
|
|
284
|
1992
|
|
|
1993 ctx = c->log->data;
|
|
|
1994 ctx->current_request = r;
|
|
28
|
1995 }
|
|
126
|
1996
|
|
130
|
1997 p = u->pipe;
|
|
28
|
1998
|
|
|
1999 if (ev->timedout) {
|
|
|
2000 if (ev->write) {
|
|
76
|
2001 if (ev->delayed) {
|
|
|
2002
|
|
|
2003 ev->timedout = 0;
|
|
|
2004 ev->delayed = 0;
|
|
|
2005
|
|
|
2006 if (!ev->ready) {
|
|
|
2007 ngx_add_timer(ev, p->send_timeout);
|
|
|
2008
|
|
|
2009 if (ngx_handle_write_event(ev, p->send_lowat) == NGX_ERROR)
|
|
|
2010 {
|
|
|
2011 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2012 return;
|
|
|
2013 }
|
|
|
2014
|
|
|
2015 return;
|
|
|
2016 }
|
|
|
2017
|
|
|
2018 if (ngx_event_pipe(p, ev->write) == NGX_ABORT) {
|
|
132
|
2019
|
|
|
2020 if (downstream->destroyed) {
|
|
|
2021 return;
|
|
|
2022 }
|
|
|
2023
|
|
76
|
2024 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2025 return;
|
|
|
2026 }
|
|
|
2027
|
|
|
2028 } else {
|
|
|
2029 p->downstream_error = 1;
|
|
126
|
2030 c->timedout = 1;
|
|
160
|
2031 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out");
|
|
76
|
2032 }
|
|
28
|
2033
|
|
|
2034 } else {
|
|
126
|
2035 p->upstream_error = 1;
|
|
160
|
2036 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out");
|
|
28
|
2037 }
|
|
|
2038
|
|
|
2039 } else {
|
|
76
|
2040 if (ev->write && ev->delayed) {
|
|
|
2041 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2042 "http downstream delayed");
|
|
|
2043
|
|
|
2044 if (ngx_handle_write_event(ev, p->send_lowat) == NGX_ERROR) {
|
|
|
2045 return;
|
|
|
2046 }
|
|
|
2047
|
|
|
2048 return;
|
|
|
2049 }
|
|
|
2050
|
|
28
|
2051 if (ngx_event_pipe(p, ev->write) == NGX_ABORT) {
|
|
132
|
2052
|
|
|
2053 if (downstream->destroyed) {
|
|
|
2054 return;
|
|
|
2055 }
|
|
|
2056
|
|
28
|
2057 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2058 return;
|
|
|
2059 }
|
|
|
2060 }
|
|
126
|
2061
|
|
28
|
2062 if (u->peer.connection) {
|
|
|
2063
|
|
318
|
2064 if (u->store) {
|
|
|
2065
|
|
364
|
2066 tf = u->pipe->temp_file;
|
|
|
2067
|
|
|
2068 if (p->upstream_eof
|
|
|
2069 && u->headers_in.status_n == NGX_HTTP_OK
|
|
|
2070 && (u->headers_in.content_length_n == -1
|
|
|
2071 || (u->headers_in.content_length_n == tf->offset)))
|
|
|
2072 {
|
|
318
|
2073 ngx_http_upstream_store(r, u);
|
|
|
2074
|
|
|
2075 } else if ((p->upstream_error
|
|
|
2076 || (p->upstream_eof
|
|
|
2077 && u->headers_in.status_n != NGX_HTTP_OK))
|
|
364
|
2078 && tf->file.fd != NGX_INVALID_FILE)
|
|
318
|
2079 {
|
|
364
|
2080 if (ngx_delete_file(tf->file.name.data) == NGX_FILE_ERROR) {
|
|
|
2081
|
|
318
|
2082 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
|
|
|
2083 ngx_delete_file_n " \"%s\" failed",
|
|
|
2084 u->pipe->temp_file->file.name.data);
|
|
|
2085 }
|
|
|
2086 }
|
|
|
2087 }
|
|
|
2088
|
|
28
|
2089 #if (NGX_HTTP_FILE_CACHE)
|
|
|
2090
|
|
340
|
2091 if (p->upstream_done && u->cacheable) {
|
|
28
|
2092 if (ngx_http_cache_update(r) == NGX_ERROR) {
|
|
|
2093 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock);
|
|
|
2094 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2095 return;
|
|
|
2096 }
|
|
|
2097
|
|
340
|
2098 } else if (p->upstream_eof && u->cacheable) {
|
|
28
|
2099
|
|
|
2100 /* TODO: check length & update cache */
|
|
|
2101
|
|
|
2102 if (ngx_http_cache_update(r) == NGX_ERROR) {
|
|
|
2103 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock);
|
|
|
2104 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2105 return;
|
|
|
2106 }
|
|
|
2107 }
|
|
|
2108
|
|
|
2109 #endif
|
|
|
2110
|
|
|
2111 if (p->upstream_done || p->upstream_eof || p->upstream_error) {
|
|
32
|
2112 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2113 "http upstream exit: %p", p->out);
|
|
28
|
2114 #if 0
|
|
|
2115 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock);
|
|
|
2116 #endif
|
|
|
2117 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2118 return;
|
|
|
2119 }
|
|
|
2120 }
|
|
|
2121
|
|
|
2122 if (p->downstream_error) {
|
|
32
|
2123 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2124 "http upstream downstream error");
|
|
28
|
2125
|
|
340
|
2126 if (!u->cacheable && u->peer.connection) {
|
|
28
|
2127 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2128 }
|
|
|
2129 }
|
|
|
2130 }
|
|
|
2131
|
|
|
2132
|
|
36
|
2133 static void
|
|
318
|
2134 ngx_http_upstream_store(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
|
2135 {
|
|
370
|
2136 size_t root;
|
|
|
2137 time_t lm;
|
|
|
2138 ngx_str_t path;
|
|
|
2139 ngx_temp_file_t *tf;
|
|
|
2140 ngx_ext_rename_file_t ext;
|
|
318
|
2141
|
|
358
|
2142 tf = u->pipe->temp_file;
|
|
|
2143
|
|
|
2144 if (tf->file.fd == NGX_INVALID_FILE) {
|
|
318
|
2145
|
|
|
2146 /* create file for empty 200 response */
|
|
|
2147
|
|
|
2148 tf = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t));
|
|
|
2149 if (tf == NULL) {
|
|
|
2150 return;
|
|
|
2151 }
|
|
|
2152
|
|
|
2153 tf->file.fd = NGX_INVALID_FILE;
|
|
|
2154 tf->file.log = r->connection->log;
|
|
|
2155 tf->path = u->conf->temp_path;
|
|
|
2156 tf->pool = r->pool;
|
|
|
2157 tf->persistent = 1;
|
|
|
2158
|
|
|
2159 if (ngx_create_temp_file(&tf->file, tf->path, tf->pool,
|
|
|
2160 tf->persistent, tf->clean, tf->access)
|
|
|
2161 != NGX_OK)
|
|
|
2162 {
|
|
|
2163 return;
|
|
|
2164 }
|
|
|
2165
|
|
|
2166 u->pipe->temp_file = tf;
|
|
|
2167 }
|
|
|
2168
|
|
370
|
2169 ext.access = u->conf->store_access;
|
|
|
2170 ext.time = -1;
|
|
|
2171 ext.create_path = 1;
|
|
|
2172 ext.delete_file = 1;
|
|
|
2173 ext.log = r->connection->log;
|
|
318
|
2174
|
|
356
|
2175 if (u->headers_in.last_modified) {
|
|
|
2176
|
|
370
|
2177 lm = ngx_http_parse_time(u->headers_in.last_modified->value.data,
|
|
|
2178 u->headers_in.last_modified->value.len);
|
|
318
|
2179
|
|
|
2180 if (lm != NGX_ERROR) {
|
|
370
|
2181 ext.time = lm;
|
|
|
2182 ext.fd = tf->file.fd;
|
|
318
|
2183 }
|
|
|
2184 }
|
|
|
2185
|
|
320
|
2186 if (u->conf->store_lengths == NULL) {
|
|
|
2187
|
|
|
2188 ngx_http_map_uri_to_path(r, &path, &root, 0);
|
|
|
2189
|
|
|
2190 } else {
|
|
|
2191 if (ngx_http_script_run(r, &path, u->conf->store_lengths->elts, 0,
|
|
|
2192 u->conf->store_values->elts)
|
|
|
2193 == NULL)
|
|
|
2194 {
|
|
|
2195 return;
|
|
|
2196 }
|
|
|
2197 }
|
|
318
|
2198
|
|
|
2199 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
370
|
2200 "upstream stores \"%s\" to \"%s\"",
|
|
|
2201 tf->file.name.data, path.data);
|
|
|
2202
|
|
|
2203 (void) ngx_ext_rename_file(&tf->file.name, &path, &ext);
|
|
318
|
2204 }
|
|
|
2205
|
|
|
2206
|
|
|
2207 static void
|
|
36
|
2208 ngx_http_upstream_dummy_handler(ngx_event_t *wev)
|
|
28
|
2209 {
|
|
|
2210 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
2211 "http upstream dummy handler");
|
|
|
2212 }
|
|
|
2213
|
|
|
2214
|
|
36
|
2215 static void
|
|
|
2216 ngx_http_upstream_next(ngx_http_request_t *r, ngx_http_upstream_t *u,
|
|
|
2217 ngx_uint_t ft_type)
|
|
28
|
2218 {
|
|
260
|
2219 ngx_uint_t status, state;
|
|
28
|
2220
|
|
|
2221 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
260
|
2222 "http next upstream, %xi", ft_type);
|
|
28
|
2223
|
|
|
2224 #if 0
|
|
|
2225 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock);
|
|
|
2226 #endif
|
|
|
2227
|
|
74
|
2228 if (ft_type == NGX_HTTP_UPSTREAM_FT_HTTP_404) {
|
|
260
|
2229 state = NGX_PEER_NEXT;
|
|
74
|
2230 } else {
|
|
260
|
2231 state = NGX_PEER_FAILED;
|
|
28
|
2232 }
|
|
74
|
2233
|
|
326
|
2234 if (ft_type != NGX_HTTP_UPSTREAM_FT_NOLIVE) {
|
|
|
2235 u->peer.free(&u->peer, u->peer.data, state);
|
|
|
2236 }
|
|
74
|
2237
|
|
28
|
2238 if (ft_type == NGX_HTTP_UPSTREAM_FT_TIMEOUT) {
|
|
|
2239 ngx_log_error(NGX_LOG_ERR, r->connection->log, NGX_ETIMEDOUT,
|
|
|
2240 "upstream timed out");
|
|
|
2241 }
|
|
126
|
2242
|
|
28
|
2243 if (u->peer.cached && ft_type == NGX_HTTP_UPSTREAM_FT_ERROR) {
|
|
|
2244 status = 0;
|
|
|
2245
|
|
|
2246 } else {
|
|
|
2247 switch(ft_type) {
|
|
|
2248
|
|
|
2249 case NGX_HTTP_UPSTREAM_FT_TIMEOUT:
|
|
|
2250 status = NGX_HTTP_GATEWAY_TIME_OUT;
|
|
|
2251 break;
|
|
|
2252
|
|
|
2253 case NGX_HTTP_UPSTREAM_FT_HTTP_500:
|
|
|
2254 status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
2255 break;
|
|
|
2256
|
|
|
2257 case NGX_HTTP_UPSTREAM_FT_HTTP_404:
|
|
|
2258 status = NGX_HTTP_NOT_FOUND;
|
|
|
2259 break;
|
|
|
2260
|
|
|
2261 /*
|
|
|
2262 * NGX_HTTP_UPSTREAM_FT_BUSY_LOCK and NGX_HTTP_UPSTREAM_FT_MAX_WAITING
|
|
|
2263 * never reach here
|
|
|
2264 */
|
|
|
2265
|
|
|
2266 default:
|
|
|
2267 status = NGX_HTTP_BAD_GATEWAY;
|
|
|
2268 }
|
|
|
2269 }
|
|
|
2270
|
|
132
|
2271 if (r->connection->error) {
|
|
28
|
2272 ngx_http_upstream_finalize_request(r, u,
|
|
|
2273 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
2274 return;
|
|
|
2275 }
|
|
|
2276
|
|
|
2277 if (status) {
|
|
|
2278 u->state->status = status;
|
|
|
2279
|
|
74
|
2280 if (u->peer.tries == 0 || !(u->conf->next_upstream & ft_type)) {
|
|
28
|
2281
|
|
|
2282 #if (NGX_HTTP_CACHE)
|
|
|
2283
|
|
|
2284 if (u->stale && (u->conf->use_stale & ft_type)) {
|
|
|
2285 ngx_http_upstream_finalize_request(r, u,
|
|
74
|
2286 ngx_http_send_cached_response(r));
|
|
28
|
2287 return;
|
|
|
2288 }
|
|
|
2289
|
|
|
2290 #endif
|
|
|
2291
|
|
|
2292 ngx_http_upstream_finalize_request(r, u, status);
|
|
|
2293 return;
|
|
|
2294 }
|
|
|
2295 }
|
|
|
2296
|
|
|
2297 if (u->peer.connection) {
|
|
|
2298 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2299 "close http upstream connection: %d",
|
|
|
2300 u->peer.connection->fd);
|
|
126
|
2301 #if (NGX_HTTP_SSL)
|
|
260
|
2302
|
|
126
|
2303 if (u->peer.connection->ssl) {
|
|
260
|
2304 u->peer.connection->ssl->no_wait_shutdown = 1;
|
|
|
2305 u->peer.connection->ssl->no_send_shutdown = 1;
|
|
|
2306
|
|
|
2307 (void) ngx_ssl_shutdown(u->peer.connection);
|
|
126
|
2308 }
|
|
|
2309 #endif
|
|
260
|
2310
|
|
28
|
2311 ngx_close_connection(u->peer.connection);
|
|
|
2312 }
|
|
|
2313
|
|
|
2314 #if 0
|
|
|
2315 if (u->conf->busy_lock && !u->busy_locked) {
|
|
|
2316 ngx_http_upstream_busy_lock(p);
|
|
|
2317 return;
|
|
|
2318 }
|
|
|
2319 #endif
|
|
|
2320
|
|
|
2321 ngx_http_upstream_connect(r, u);
|
|
|
2322 }
|
|
|
2323
|
|
|
2324
|
|
36
|
2325 static void
|
|
118
|
2326 ngx_http_upstream_cleanup(void *data)
|
|
|
2327 {
|
|
|
2328 ngx_http_request_t *r = data;
|
|
|
2329
|
|
356
|
2330 ngx_http_upstream_t *u;
|
|
|
2331
|
|
118
|
2332 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2333 "cleanup http upstream request: \"%V\"", &r->uri);
|
|
|
2334
|
|
356
|
2335 u = r->upstream;
|
|
|
2336
|
|
|
2337 if (u->resolved && u->resolved->ctx) {
|
|
|
2338 ngx_resolve_name_done(u->resolved->ctx);
|
|
348
|
2339 }
|
|
|
2340
|
|
356
|
2341 ngx_http_upstream_finalize_request(r, u, NGX_DONE);
|
|
118
|
2342 }
|
|
|
2343
|
|
|
2344
|
|
|
2345 static void
|
|
36
|
2346 ngx_http_upstream_finalize_request(ngx_http_request_t *r,
|
|
|
2347 ngx_http_upstream_t *u, ngx_int_t rc)
|
|
28
|
2348 {
|
|
262
|
2349 ngx_time_t *tp;
|
|
112
|
2350
|
|
32
|
2351 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2352 "finalize http upstream request: %i", rc);
|
|
28
|
2353
|
|
118
|
2354 *u->cleanup = NULL;
|
|
|
2355
|
|
348
|
2356 if (u->state && u->state->response_sec) {
|
|
112
|
2357 tp = ngx_timeofday();
|
|
262
|
2358 u->state->response_sec = tp->sec - u->state->response_sec;
|
|
|
2359 u->state->response_msec = tp->msec - u->state->response_msec;
|
|
112
|
2360 }
|
|
|
2361
|
|
28
|
2362 u->finalize_request(r, rc);
|
|
|
2363
|
|
348
|
2364 if (u->peer.free) {
|
|
|
2365 u->peer.free(&u->peer, u->peer.data, 0);
|
|
|
2366 }
|
|
260
|
2367
|
|
28
|
2368 if (u->peer.connection) {
|
|
260
|
2369
|
|
126
|
2370 #if (NGX_HTTP_SSL)
|
|
|
2371
|
|
|
2372 /* TODO: do not shutdown persistent connection */
|
|
|
2373
|
|
|
2374 if (u->peer.connection->ssl) {
|
|
260
|
2375
|
|
|
2376 /*
|
|
|
2377 * We send the "close notify" shutdown alert to the upstream only
|
|
|
2378 * and do not wait its "close notify" shutdown alert.
|
|
|
2379 * It is acceptable according to the TLS standard.
|
|
|
2380 */
|
|
|
2381
|
|
|
2382 u->peer.connection->ssl->no_wait_shutdown = 1;
|
|
|
2383
|
|
|
2384 (void) ngx_ssl_shutdown(u->peer.connection);
|
|
126
|
2385 }
|
|
|
2386 #endif
|
|
260
|
2387
|
|
|
2388 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2389 "close http upstream connection: %d",
|
|
|
2390 u->peer.connection->fd);
|
|
|
2391
|
|
28
|
2392 ngx_close_connection(u->peer.connection);
|
|
|
2393 }
|
|
|
2394
|
|
32
|
2395 u->peer.connection = NULL;
|
|
|
2396
|
|
112
|
2397 if (u->header_sent && (rc == NGX_ERROR || rc >= NGX_HTTP_SPECIAL_RESPONSE))
|
|
28
|
2398 {
|
|
|
2399 rc = 0;
|
|
|
2400 }
|
|
|
2401
|
|
130
|
2402 if (u->pipe && u->pipe->temp_file) {
|
|
28
|
2403 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2404 "http upstream temp fd: %d",
|
|
130
|
2405 u->pipe->temp_file->file.fd);
|
|
28
|
2406 }
|
|
|
2407
|
|
|
2408 #if 0
|
|
|
2409 if (u->cache) {
|
|
|
2410 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
32
|
2411 "http upstream cache fd: %d",
|
|
28
|
2412 u->cache->ctx.file.fd);
|
|
|
2413 }
|
|
|
2414 #endif
|
|
|
2415
|
|
64
|
2416 if (rc == NGX_DECLINED) {
|
|
|
2417 return;
|
|
|
2418 }
|
|
|
2419
|
|
32
|
2420 r->connection->log->action = "sending to client";
|
|
|
2421
|
|
314
|
2422 if (rc == 0) {
|
|
|
2423 if (r == r->main) {
|
|
|
2424 if (!r->post_action) {
|
|
|
2425 rc = ngx_http_send_special(r, NGX_HTTP_LAST);
|
|
|
2426 }
|
|
|
2427
|
|
|
2428 } else {
|
|
|
2429 if (r->out) {
|
|
|
2430 rc = NGX_AGAIN;
|
|
|
2431 }
|
|
|
2432 }
|
|
28
|
2433 }
|
|
|
2434
|
|
|
2435 ngx_http_finalize_request(r, rc);
|
|
|
2436 }
|
|
|
2437
|
|
|
2438
|
|
58
|
2439 static ngx_int_t
|
|
|
2440 ngx_http_upstream_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
2441 ngx_uint_t offset)
|
|
126
|
2442 {
|
|
58
|
2443 ngx_table_elt_t **ph;
|
|
126
|
2444
|
|
58
|
2445 ph = (ngx_table_elt_t **) ((char *) &r->upstream->headers_in + offset);
|
|
|
2446
|
|
|
2447 if (*ph == NULL) {
|
|
|
2448 *ph = h;
|
|
|
2449 }
|
|
|
2450
|
|
|
2451 return NGX_OK;
|
|
|
2452 }
|
|
|
2453
|
|
|
2454
|
|
|
2455 static ngx_int_t
|
|
|
2456 ngx_http_upstream_process_multi_header_lines(ngx_http_request_t *r,
|
|
|
2457 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
2458 {
|
|
|
2459 ngx_array_t *pa;
|
|
|
2460 ngx_table_elt_t **ph;
|
|
|
2461
|
|
|
2462 pa = (ngx_array_t *) ((char *) &r->upstream->headers_in + offset);
|
|
|
2463
|
|
|
2464 if (pa->elts == NULL) {
|
|
|
2465 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK)
|
|
|
2466 {
|
|
|
2467 return NGX_ERROR;
|
|
|
2468 }
|
|
|
2469 }
|
|
|
2470
|
|
|
2471 ph = ngx_array_push(pa);
|
|
|
2472 if (ph == NULL) {
|
|
|
2473 return NGX_ERROR;
|
|
|
2474 }
|
|
|
2475
|
|
|
2476 *ph = h;
|
|
|
2477
|
|
|
2478 return NGX_OK;
|
|
|
2479 }
|
|
|
2480
|
|
|
2481
|
|
|
2482 static ngx_int_t
|
|
|
2483 ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
2484 ngx_uint_t offset)
|
|
|
2485 {
|
|
|
2486 return NGX_OK;
|
|
|
2487 }
|
|
|
2488
|
|
|
2489
|
|
|
2490 static ngx_int_t
|
|
76
|
2491 ngx_http_upstream_process_limit_rate(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
2492 ngx_uint_t offset)
|
|
126
|
2493 {
|
|
76
|
2494 ngx_int_t n;
|
|
|
2495
|
|
|
2496 r->upstream->headers_in.x_accel_limit_rate = h;
|
|
|
2497
|
|
|
2498 n = ngx_atoi(h->value.data, h->value.len);
|
|
|
2499
|
|
|
2500 if (n != NGX_ERROR) {
|
|
|
2501 r->limit_rate = (size_t) n;
|
|
|
2502 }
|
|
|
2503
|
|
|
2504 return NGX_OK;
|
|
|
2505 }
|
|
|
2506
|
|
|
2507
|
|
|
2508 static ngx_int_t
|
|
198
|
2509 ngx_http_upstream_process_buffering(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
2510 ngx_uint_t offset)
|
|
|
2511 {
|
|
|
2512 u_char c0, c1, c2;
|
|
|
2513
|
|
|
2514 if (r->upstream->conf->change_buffering) {
|
|
|
2515
|
|
|
2516 if (h->value.len == 2) {
|
|
|
2517 c0 = ngx_tolower(h->value.data[0]);
|
|
|
2518 c1 = ngx_tolower(h->value.data[1]);
|
|
|
2519
|
|
|
2520 if (c0 == 'n' && c1 == 'o') {
|
|
|
2521 r->upstream->buffering = 0;
|
|
|
2522 }
|
|
|
2523
|
|
|
2524 } else if (h->value.len == 3) {
|
|
|
2525 c0 = ngx_tolower(h->value.data[0]);
|
|
|
2526 c1 = ngx_tolower(h->value.data[1]);
|
|
|
2527 c2 = ngx_tolower(h->value.data[2]);
|
|
|
2528
|
|
|
2529 if (c0 == 'y' && c1 == 'e' && c2 == 's') {
|
|
|
2530 r->upstream->buffering = 1;
|
|
|
2531 }
|
|
|
2532 }
|
|
|
2533 }
|
|
|
2534
|
|
|
2535 return NGX_OK;
|
|
|
2536 }
|
|
|
2537
|
|
|
2538
|
|
|
2539 static ngx_int_t
|
|
206
|
2540 ngx_http_upstream_process_charset(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
2541 ngx_uint_t offset)
|
|
|
2542 {
|
|
|
2543 r->headers_out.override_charset = &h->value;
|
|
|
2544
|
|
|
2545 return NGX_OK;
|
|
|
2546 }
|
|
|
2547
|
|
|
2548
|
|
|
2549 static ngx_int_t
|
|
58
|
2550 ngx_http_upstream_copy_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
2551 ngx_uint_t offset)
|
|
|
2552 {
|
|
122
|
2553 ngx_table_elt_t *ho, **ph;
|
|
58
|
2554
|
|
|
2555 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
2556 if (ho == NULL) {
|
|
|
2557 return NGX_ERROR;
|
|
|
2558 }
|
|
|
2559
|
|
|
2560 *ho = *h;
|
|
|
2561
|
|
122
|
2562 if (offset) {
|
|
|
2563 ph = (ngx_table_elt_t **) ((char *) &r->headers_out + offset);
|
|
|
2564 *ph = ho;
|
|
|
2565 }
|
|
|
2566
|
|
58
|
2567 return NGX_OK;
|
|
|
2568 }
|
|
|
2569
|
|
|
2570
|
|
|
2571 static ngx_int_t
|
|
|
2572 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r,
|
|
|
2573 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
2574 {
|
|
|
2575 ngx_array_t *pa;
|
|
|
2576 ngx_table_elt_t *ho, **ph;
|
|
|
2577
|
|
|
2578 pa = (ngx_array_t *) ((char *) &r->headers_out + offset);
|
|
|
2579
|
|
|
2580 if (pa->elts == NULL) {
|
|
|
2581 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK)
|
|
|
2582 {
|
|
|
2583 return NGX_ERROR;
|
|
|
2584 }
|
|
|
2585 }
|
|
|
2586
|
|
|
2587 ph = ngx_array_push(pa);
|
|
|
2588 if (ph == NULL) {
|
|
|
2589 return NGX_ERROR;
|
|
|
2590 }
|
|
|
2591
|
|
|
2592 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
2593 if (ho == NULL) {
|
|
|
2594 return NGX_ERROR;
|
|
|
2595 }
|
|
|
2596
|
|
|
2597 *ho = *h;
|
|
|
2598 *ph = ho;
|
|
|
2599
|
|
|
2600 return NGX_OK;
|
|
|
2601 }
|
|
|
2602
|
|
|
2603
|
|
|
2604 static ngx_int_t
|
|
|
2605 ngx_http_upstream_copy_content_type(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
2606 ngx_uint_t offset)
|
|
|
2607 {
|
|
206
|
2608 u_char *p, *last;
|
|
|
2609
|
|
|
2610 r->headers_out.content_type_len = h->value.len;
|
|
58
|
2611 r->headers_out.content_type = h->value;
|
|
|
2612
|
|
206
|
2613 for (p = h->value.data; *p; p++) {
|
|
|
2614
|
|
|
2615 if (*p != ';') {
|
|
|
2616 continue;
|
|
|
2617 }
|
|
|
2618
|
|
|
2619 last = p;
|
|
|
2620
|
|
|
2621 while (*++p == ' ') { /* void */ }
|
|
|
2622
|
|
372
|
2623 if (*p == '\0') {
|
|
|
2624 return NGX_OK;
|
|
|
2625 }
|
|
|
2626
|
|
286
|
2627 if (ngx_strncasecmp(p, (u_char *) "charset=", 8) != 0) {
|
|
206
|
2628 continue;
|
|
|
2629 }
|
|
|
2630
|
|
|
2631 p += 8;
|
|
|
2632
|
|
|
2633 r->headers_out.content_type_len = last - h->value.data;
|
|
|
2634
|
|
410
|
2635 if (*p == '"') {
|
|
|
2636 p++;
|
|
|
2637 }
|
|
|
2638
|
|
|
2639 last = h->value.data + h->value.len;
|
|
|
2640
|
|
|
2641 if (*(last - 1) == '"') {
|
|
|
2642 last--;
|
|
|
2643 }
|
|
|
2644
|
|
|
2645 r->headers_out.charset.len = last - p;
|
|
206
|
2646 r->headers_out.charset.data = p;
|
|
292
|
2647
|
|
|
2648 return NGX_OK;
|
|
206
|
2649 }
|
|
|
2650
|
|
58
|
2651 return NGX_OK;
|
|
|
2652 }
|
|
|
2653
|
|
|
2654
|
|
|
2655 static ngx_int_t
|
|
|
2656 ngx_http_upstream_copy_content_length(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
2657 ngx_uint_t offset)
|
|
|
2658 {
|
|
|
2659 ngx_table_elt_t *ho;
|
|
|
2660
|
|
|
2661 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
2662 if (ho == NULL) {
|
|
|
2663 return NGX_ERROR;
|
|
|
2664 }
|
|
|
2665
|
|
|
2666 *ho = *h;
|
|
|
2667
|
|
|
2668 r->headers_out.content_length = ho;
|
|
|
2669 r->headers_out.content_length_n = ngx_atoof(h->value.data, h->value.len);
|
|
|
2670
|
|
|
2671 return NGX_OK;
|
|
|
2672 }
|
|
|
2673
|
|
|
2674
|
|
|
2675 static ngx_int_t
|
|
|
2676 ngx_http_upstream_rewrite_location(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
2677 ngx_uint_t offset)
|
|
|
2678 {
|
|
|
2679 ngx_int_t rc;
|
|
|
2680 ngx_table_elt_t *ho;
|
|
|
2681
|
|
|
2682 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
2683 if (ho == NULL) {
|
|
|
2684 return NGX_ERROR;
|
|
|
2685 }
|
|
|
2686
|
|
|
2687 *ho = *h;
|
|
|
2688
|
|
|
2689 if (r->upstream->rewrite_redirect) {
|
|
|
2690 rc = r->upstream->rewrite_redirect(r, ho, 0);
|
|
|
2691
|
|
78
|
2692 if (rc == NGX_DECLINED) {
|
|
|
2693 return NGX_OK;
|
|
|
2694 }
|
|
|
2695
|
|
58
|
2696 if (rc == NGX_OK) {
|
|
|
2697 r->headers_out.location = ho;
|
|
|
2698
|
|
|
2699 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2700 "rewritten location: \"%V\"", &ho->value);
|
|
|
2701 }
|
|
|
2702
|
|
|
2703 return rc;
|
|
|
2704 }
|
|
|
2705
|
|
348
|
2706 if (ho->value.data[0] != '/') {
|
|
|
2707 r->headers_out.location = ho;
|
|
|
2708 }
|
|
|
2709
|
|
58
|
2710 /*
|
|
|
2711 * we do not set r->headers_out.location here to avoid the handling
|
|
|
2712 * the local redirects without a host name by ngx_http_header_filter()
|
|
|
2713 */
|
|
|
2714
|
|
|
2715 return NGX_OK;
|
|
|
2716 }
|
|
|
2717
|
|
|
2718
|
|
|
2719 static ngx_int_t
|
|
|
2720 ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
2721 ngx_uint_t offset)
|
|
|
2722 {
|
|
|
2723 u_char *p;
|
|
|
2724 ngx_int_t rc;
|
|
|
2725 ngx_table_elt_t *ho;
|
|
|
2726
|
|
|
2727 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
2728 if (ho == NULL) {
|
|
|
2729 return NGX_ERROR;
|
|
|
2730 }
|
|
|
2731
|
|
|
2732 *ho = *h;
|
|
|
2733
|
|
|
2734 if (r->upstream->rewrite_redirect) {
|
|
|
2735
|
|
340
|
2736 p = ngx_strcasestrn(ho->value.data, "url=", 4 - 1);
|
|
58
|
2737
|
|
|
2738 if (p) {
|
|
|
2739 rc = r->upstream->rewrite_redirect(r, ho, p + 4 - ho->value.data);
|
|
|
2740
|
|
|
2741 } else {
|
|
|
2742 return NGX_OK;
|
|
|
2743 }
|
|
|
2744
|
|
78
|
2745 if (rc == NGX_DECLINED) {
|
|
|
2746 return NGX_OK;
|
|
|
2747 }
|
|
|
2748
|
|
58
|
2749 if (rc == NGX_OK) {
|
|
348
|
2750 r->headers_out.refresh = ho;
|
|
|
2751
|
|
58
|
2752 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2753 "rewritten refresh: \"%V\"", &ho->value);
|
|
|
2754 }
|
|
|
2755
|
|
|
2756 return rc;
|
|
|
2757 }
|
|
|
2758
|
|
348
|
2759 r->headers_out.refresh = ho;
|
|
|
2760
|
|
58
|
2761 return NGX_OK;
|
|
|
2762 }
|
|
|
2763
|
|
|
2764
|
|
|
2765 #if (NGX_HTTP_GZIP)
|
|
|
2766
|
|
|
2767 static ngx_int_t
|
|
|
2768 ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r,
|
|
|
2769 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
2770 {
|
|
|
2771 ngx_table_elt_t *ho;
|
|
|
2772
|
|
|
2773 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
2774 if (ho == NULL) {
|
|
|
2775 return NGX_ERROR;
|
|
|
2776 }
|
|
|
2777
|
|
|
2778 *ho = *h;
|
|
|
2779
|
|
|
2780 r->headers_out.content_encoding = ho;
|
|
|
2781
|
|
|
2782 return NGX_OK;
|
|
|
2783 }
|
|
|
2784
|
|
|
2785 #endif
|
|
|
2786
|
|
|
2787
|
|
36
|
2788 static ngx_int_t
|
|
122
|
2789 ngx_http_upstream_add_variables(ngx_conf_t *cf)
|
|
28
|
2790 {
|
|
260
|
2791 ngx_http_variable_t *var, *v;
|
|
28
|
2792
|
|
122
|
2793 for (v = ngx_http_upstream_vars; v->name.len; v++) {
|
|
|
2794 var = ngx_http_add_variable(cf, &v->name, v->flags);
|
|
|
2795 if (var == NULL) {
|
|
|
2796 return NGX_ERROR;
|
|
|
2797 }
|
|
|
2798
|
|
186
|
2799 var->get_handler = v->get_handler;
|
|
122
|
2800 var->data = v->data;
|
|
|
2801 }
|
|
|
2802
|
|
28
|
2803 return NGX_OK;
|
|
|
2804 }
|
|
58
|
2805
|
|
|
2806
|
|
122
|
2807 static ngx_int_t
|
|
298
|
2808 ngx_http_upstream_addr_variable(ngx_http_request_t *r,
|
|
|
2809 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
2810 {
|
|
|
2811 u_char *p;
|
|
|
2812 size_t len;
|
|
|
2813 ngx_uint_t i;
|
|
|
2814 ngx_http_upstream_state_t *state;
|
|
|
2815
|
|
|
2816 v->valid = 1;
|
|
340
|
2817 v->no_cacheable = 0;
|
|
298
|
2818 v->not_found = 0;
|
|
|
2819
|
|
|
2820 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) {
|
|
|
2821 v->not_found = 1;
|
|
|
2822 return NGX_OK;
|
|
|
2823 }
|
|
|
2824
|
|
|
2825 len = 0;
|
|
|
2826 state = r->upstream_states->elts;
|
|
|
2827
|
|
|
2828 for (i = 0; i < r->upstream_states->nelts; i++) {
|
|
|
2829 if (state[i].peer) {
|
|
|
2830 len += state[i].peer->len + 2;
|
|
|
2831
|
|
|
2832 } else {
|
|
|
2833 len += 3;
|
|
|
2834 }
|
|
|
2835 }
|
|
|
2836
|
|
382
|
2837 p = ngx_pnalloc(r->pool, len);
|
|
298
|
2838 if (p == NULL) {
|
|
|
2839 return NGX_ERROR;
|
|
|
2840 }
|
|
|
2841
|
|
|
2842 v->data = p;
|
|
|
2843
|
|
|
2844 i = 0;
|
|
|
2845
|
|
|
2846 for ( ;; ) {
|
|
|
2847 if (state[i].peer) {
|
|
|
2848 p = ngx_cpymem(p, state[i].peer->data, state[i].peer->len);
|
|
|
2849 }
|
|
|
2850
|
|
|
2851 if (++i == r->upstream_states->nelts) {
|
|
|
2852 break;
|
|
|
2853 }
|
|
|
2854
|
|
|
2855 if (state[i].peer) {
|
|
|
2856 *p++ = ',';
|
|
|
2857 *p++ = ' ';
|
|
|
2858
|
|
|
2859 } else {
|
|
|
2860 *p++ = ' ';
|
|
|
2861 *p++ = ':';
|
|
|
2862 *p++ = ' ';
|
|
|
2863
|
|
|
2864 if (++i == r->upstream_states->nelts) {
|
|
|
2865 break;
|
|
|
2866 }
|
|
|
2867
|
|
|
2868 continue;
|
|
|
2869 }
|
|
|
2870 }
|
|
|
2871
|
|
|
2872 v->len = p - v->data;
|
|
|
2873
|
|
|
2874 return NGX_OK;
|
|
|
2875 }
|
|
|
2876
|
|
|
2877
|
|
|
2878 static ngx_int_t
|
|
122
|
2879 ngx_http_upstream_status_variable(ngx_http_request_t *r,
|
|
|
2880 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
2881 {
|
|
|
2882 u_char *p;
|
|
|
2883 size_t len;
|
|
|
2884 ngx_uint_t i;
|
|
|
2885 ngx_http_upstream_state_t *state;
|
|
|
2886
|
|
|
2887 v->valid = 1;
|
|
340
|
2888 v->no_cacheable = 0;
|
|
122
|
2889 v->not_found = 0;
|
|
|
2890
|
|
296
|
2891 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) {
|
|
122
|
2892 v->not_found = 1;
|
|
|
2893 return NGX_OK;
|
|
|
2894 }
|
|
|
2895
|
|
296
|
2896 len = r->upstream_states->nelts * (3 + 2);
|
|
122
|
2897
|
|
382
|
2898 p = ngx_pnalloc(r->pool, len);
|
|
122
|
2899 if (p == NULL) {
|
|
|
2900 return NGX_ERROR;
|
|
|
2901 }
|
|
|
2902
|
|
|
2903 v->data = p;
|
|
|
2904
|
|
|
2905 i = 0;
|
|
296
|
2906 state = r->upstream_states->elts;
|
|
122
|
2907
|
|
|
2908 for ( ;; ) {
|
|
296
|
2909 if (state[i].status) {
|
|
|
2910 p = ngx_sprintf(p, "%ui", state[i].status);
|
|
122
|
2911
|
|
|
2912 } else {
|
|
296
|
2913 *p++ = '-';
|
|
122
|
2914 }
|
|
|
2915
|
|
296
|
2916 if (++i == r->upstream_states->nelts) {
|
|
122
|
2917 break;
|
|
|
2918 }
|
|
|
2919
|
|
296
|
2920 if (state[i].peer) {
|
|
|
2921 *p++ = ',';
|
|
|
2922 *p++ = ' ';
|
|
|
2923
|
|
|
2924 } else {
|
|
|
2925 *p++ = ' ';
|
|
|
2926 *p++ = ':';
|
|
|
2927 *p++ = ' ';
|
|
|
2928
|
|
|
2929 if (++i == r->upstream_states->nelts) {
|
|
|
2930 break;
|
|
|
2931 }
|
|
|
2932
|
|
|
2933 continue;
|
|
|
2934 }
|
|
122
|
2935 }
|
|
|
2936
|
|
|
2937 v->len = p - v->data;
|
|
|
2938
|
|
|
2939 return NGX_OK;
|
|
|
2940 }
|
|
|
2941
|
|
|
2942
|
|
|
2943 static ngx_int_t
|
|
|
2944 ngx_http_upstream_response_time_variable(ngx_http_request_t *r,
|
|
|
2945 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
2946 {
|
|
|
2947 u_char *p;
|
|
|
2948 size_t len;
|
|
|
2949 ngx_uint_t i;
|
|
262
|
2950 ngx_msec_int_t ms;
|
|
122
|
2951 ngx_http_upstream_state_t *state;
|
|
|
2952
|
|
|
2953 v->valid = 1;
|
|
340
|
2954 v->no_cacheable = 0;
|
|
122
|
2955 v->not_found = 0;
|
|
|
2956
|
|
296
|
2957 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) {
|
|
122
|
2958 v->not_found = 1;
|
|
|
2959 return NGX_OK;
|
|
|
2960 }
|
|
|
2961
|
|
296
|
2962 len = r->upstream_states->nelts * (NGX_TIME_T_LEN + 4 + 2);
|
|
122
|
2963
|
|
382
|
2964 p = ngx_pnalloc(r->pool, len);
|
|
122
|
2965 if (p == NULL) {
|
|
|
2966 return NGX_ERROR;
|
|
|
2967 }
|
|
|
2968
|
|
|
2969 v->data = p;
|
|
|
2970
|
|
|
2971 i = 0;
|
|
296
|
2972 state = r->upstream_states->elts;
|
|
122
|
2973
|
|
|
2974 for ( ;; ) {
|
|
296
|
2975 if (state[i].status) {
|
|
346
|
2976 ms = (ngx_msec_int_t)
|
|
|
2977 (state[i].response_sec * 1000 + state[i].response_msec);
|
|
262
|
2978 ms = (ms >= 0) ? ms : 0;
|
|
|
2979 p = ngx_sprintf(p, "%d.%03d", ms / 1000, ms % 1000);
|
|
296
|
2980
|
|
|
2981 } else {
|
|
|
2982 *p++ = '-';
|
|
122
|
2983 }
|
|
|
2984
|
|
296
|
2985 if (++i == r->upstream_states->nelts) {
|
|
122
|
2986 break;
|
|
|
2987 }
|
|
|
2988
|
|
296
|
2989 if (state[i].peer) {
|
|
|
2990 *p++ = ',';
|
|
|
2991 *p++ = ' ';
|
|
|
2992
|
|
|
2993 } else {
|
|
|
2994 *p++ = ' ';
|
|
|
2995 *p++ = ':';
|
|
|
2996 *p++ = ' ';
|
|
|
2997
|
|
|
2998 if (++i == r->upstream_states->nelts) {
|
|
|
2999 break;
|
|
|
3000 }
|
|
|
3001
|
|
|
3002 continue;
|
|
|
3003 }
|
|
122
|
3004 }
|
|
|
3005
|
|
|
3006 v->len = p - v->data;
|
|
|
3007
|
|
|
3008 return NGX_OK;
|
|
|
3009 }
|
|
|
3010
|
|
|
3011
|
|
296
|
3012 ngx_int_t
|
|
|
3013 ngx_http_upstream_header_variable(ngx_http_request_t *r,
|
|
|
3014 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
3015 {
|
|
|
3016 if (r->upstream == NULL) {
|
|
|
3017 v->not_found = 1;
|
|
|
3018 return NGX_OK;
|
|
|
3019 }
|
|
|
3020
|
|
|
3021 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data,
|
|
|
3022 &r->upstream->headers_in.headers.part,
|
|
|
3023 sizeof("upstream_http_") - 1);
|
|
|
3024 }
|
|
|
3025
|
|
|
3026
|
|
200
|
3027 static char *
|
|
|
3028 ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy)
|
|
|
3029 {
|
|
260
|
3030 char *rv;
|
|
|
3031 void *mconf;
|
|
|
3032 ngx_str_t *value;
|
|
|
3033 ngx_url_t u;
|
|
|
3034 ngx_uint_t m;
|
|
|
3035 ngx_conf_t pcf;
|
|
|
3036 ngx_http_module_t *module;
|
|
|
3037 ngx_http_conf_ctx_t *ctx, *http_ctx;
|
|
|
3038 ngx_http_upstream_srv_conf_t *uscf;
|
|
|
3039
|
|
|
3040 ngx_memzero(&u, sizeof(ngx_url_t));
|
|
|
3041
|
|
|
3042 value = cf->args->elts;
|
|
|
3043 u.host = value[1];
|
|
|
3044 u.no_resolve = 1;
|
|
|
3045
|
|
|
3046 uscf = ngx_http_upstream_add(cf, &u, NGX_HTTP_UPSTREAM_CREATE
|
|
|
3047 |NGX_HTTP_UPSTREAM_WEIGHT
|
|
|
3048 |NGX_HTTP_UPSTREAM_MAX_FAILS
|
|
|
3049 |NGX_HTTP_UPSTREAM_FAIL_TIMEOUT
|
|
|
3050 |NGX_HTTP_UPSTREAM_DOWN
|
|
|
3051 |NGX_HTTP_UPSTREAM_BACKUP);
|
|
|
3052 if (uscf == NULL) {
|
|
|
3053 return NGX_CONF_ERROR;
|
|
|
3054 }
|
|
|
3055
|
|
200
|
3056
|
|
|
3057 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t));
|
|
|
3058 if (ctx == NULL) {
|
|
|
3059 return NGX_CONF_ERROR;
|
|
|
3060 }
|
|
|
3061
|
|
260
|
3062 http_ctx = cf->ctx;
|
|
|
3063 ctx->main_conf = http_ctx->main_conf;
|
|
200
|
3064
|
|
|
3065 /* the upstream{}'s srv_conf */
|
|
|
3066
|
|
|
3067 ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
3068 if (ctx->srv_conf == NULL) {
|
|
|
3069 return NGX_CONF_ERROR;
|
|
|
3070 }
|
|
|
3071
|
|
|
3072 ctx->srv_conf[ngx_http_upstream_module.ctx_index] = uscf;
|
|
|
3073
|
|
260
|
3074 uscf->srv_conf = ctx->srv_conf;
|
|
|
3075
|
|
200
|
3076
|
|
|
3077 /* the upstream{}'s loc_conf */
|
|
|
3078
|
|
|
3079 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
3080 if (ctx->loc_conf == NULL) {
|
|
|
3081 return NGX_CONF_ERROR;
|
|
|
3082 }
|
|
|
3083
|
|
|
3084 for (m = 0; ngx_modules[m]; m++) {
|
|
|
3085 if (ngx_modules[m]->type != NGX_HTTP_MODULE) {
|
|
|
3086 continue;
|
|
|
3087 }
|
|
|
3088
|
|
|
3089 module = ngx_modules[m]->ctx;
|
|
|
3090
|
|
260
|
3091 if (module->create_srv_conf) {
|
|
|
3092 mconf = module->create_srv_conf(cf);
|
|
|
3093 if (mconf == NULL) {
|
|
|
3094 return NGX_CONF_ERROR;
|
|
|
3095 }
|
|
|
3096
|
|
|
3097 ctx->srv_conf[ngx_modules[m]->ctx_index] = mconf;
|
|
|
3098 }
|
|
|
3099
|
|
200
|
3100 if (module->create_loc_conf) {
|
|
|
3101 mconf = module->create_loc_conf(cf);
|
|
|
3102 if (mconf == NULL) {
|
|
|
3103 return NGX_CONF_ERROR;
|
|
|
3104 }
|
|
|
3105
|
|
|
3106 ctx->loc_conf[ngx_modules[m]->ctx_index] = mconf;
|
|
|
3107 }
|
|
|
3108 }
|
|
|
3109
|
|
|
3110
|
|
|
3111 /* parse inside upstream{} */
|
|
|
3112
|
|
|
3113 pcf = *cf;
|
|
|
3114 cf->ctx = ctx;
|
|
|
3115 cf->cmd_type = NGX_HTTP_UPS_CONF;
|
|
|
3116
|
|
|
3117 rv = ngx_conf_parse(cf, NULL);
|
|
|
3118
|
|
|
3119 *cf = pcf;
|
|
|
3120
|
|
|
3121 if (rv != NGX_CONF_OK) {
|
|
|
3122 return rv;
|
|
|
3123 }
|
|
|
3124
|
|
|
3125 if (uscf->servers == NULL) {
|
|
|
3126 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
3127 "no servers are inside upstream");
|
|
|
3128 return NGX_CONF_ERROR;
|
|
|
3129 }
|
|
|
3130
|
|
|
3131 return rv;
|
|
|
3132 }
|
|
|
3133
|
|
|
3134
|
|
|
3135 static char *
|
|
|
3136 ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
3137 {
|
|
|
3138 ngx_http_upstream_srv_conf_t *uscf = conf;
|
|
|
3139
|
|
260
|
3140 time_t fail_timeout;
|
|
|
3141 ngx_str_t *value, s;
|
|
|
3142 ngx_url_t u;
|
|
|
3143 ngx_int_t weight, max_fails;
|
|
|
3144 ngx_uint_t i;
|
|
|
3145 ngx_http_upstream_server_t *us;
|
|
200
|
3146
|
|
|
3147 if (uscf->servers == NULL) {
|
|
260
|
3148 uscf->servers = ngx_array_create(cf->pool, 4,
|
|
|
3149 sizeof(ngx_http_upstream_server_t));
|
|
200
|
3150 if (uscf->servers == NULL) {
|
|
|
3151 return NGX_CONF_ERROR;
|
|
|
3152 }
|
|
|
3153 }
|
|
|
3154
|
|
260
|
3155 us = ngx_array_push(uscf->servers);
|
|
|
3156 if (us == NULL) {
|
|
200
|
3157 return NGX_CONF_ERROR;
|
|
|
3158 }
|
|
|
3159
|
|
260
|
3160 ngx_memzero(us, sizeof(ngx_http_upstream_server_t));
|
|
|
3161
|
|
200
|
3162 value = cf->args->elts;
|
|
|
3163
|
|
|
3164 ngx_memzero(&u, sizeof(ngx_url_t));
|
|
|
3165
|
|
|
3166 u.url = value[1];
|
|
266
|
3167 u.default_port = 80;
|
|
200
|
3168
|
|
340
|
3169 if (ngx_parse_url(cf->pool, &u) != NGX_OK) {
|
|
200
|
3170 if (u.err) {
|
|
|
3171 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
3172 "%s in upstream \"%V\"", u.err, &u.url);
|
|
|
3173 }
|
|
|
3174
|
|
|
3175 return NGX_CONF_ERROR;
|
|
|
3176 }
|
|
|
3177
|
|
212
|
3178 weight = 1;
|
|
260
|
3179 max_fails = 1;
|
|
|
3180 fail_timeout = 10;
|
|
|
3181
|
|
|
3182 for (i = 2; i < cf->args->nelts; i++) {
|
|
|
3183
|
|
|
3184 if (ngx_strncmp(value[i].data, "weight=", 7) == 0) {
|
|
|
3185
|
|
|
3186 if (!(uscf->flags & NGX_HTTP_UPSTREAM_WEIGHT)) {
|
|
|
3187 goto invalid;
|
|
|
3188 }
|
|
|
3189
|
|
|
3190 weight = ngx_atoi(&value[i].data[7], value[i].len - 7);
|
|
212
|
3191
|
|
|
3192 if (weight == NGX_ERROR || weight == 0) {
|
|
|
3193 goto invalid;
|
|
|
3194 }
|
|
|
3195
|
|
260
|
3196 continue;
|
|
|
3197 }
|
|
|
3198
|
|
|
3199 if (ngx_strncmp(value[i].data, "max_fails=", 10) == 0) {
|
|
|
3200
|
|
|
3201 if (!(uscf->flags & NGX_HTTP_UPSTREAM_MAX_FAILS)) {
|
|
|
3202 goto invalid;
|
|
|
3203 }
|
|
|
3204
|
|
|
3205 max_fails = ngx_atoi(&value[i].data[10], value[i].len - 10);
|
|
|
3206
|
|
|
3207 if (max_fails == NGX_ERROR) {
|
|
|
3208 goto invalid;
|
|
|
3209 }
|
|
|
3210
|
|
|
3211 continue;
|
|
212
|
3212 }
|
|
260
|
3213
|
|
|
3214 if (ngx_strncmp(value[i].data, "fail_timeout=", 13) == 0) {
|
|
|
3215
|
|
|
3216 if (!(uscf->flags & NGX_HTTP_UPSTREAM_FAIL_TIMEOUT)) {
|
|
|
3217 goto invalid;
|
|
|
3218 }
|
|
|
3219
|
|
|
3220 s.len = value[i].len - 13;
|
|
|
3221 s.data = &value[i].data[13];
|
|
|
3222
|
|
|
3223 fail_timeout = ngx_parse_time(&s, 1);
|
|
|
3224
|
|
372
|
3225 if (fail_timeout == NGX_ERROR) {
|
|
260
|
3226 goto invalid;
|
|
|
3227 }
|
|
|
3228
|
|
|
3229 continue;
|
|
|
3230 }
|
|
|
3231
|
|
326
|
3232 if (ngx_strncmp(value[i].data, "backup", 6) == 0) {
|
|
|
3233
|
|
|
3234 if (!(uscf->flags & NGX_HTTP_UPSTREAM_BACKUP)) {
|
|
|
3235 goto invalid;
|
|
|
3236 }
|
|
|
3237
|
|
|
3238 us->backup = 1;
|
|
|
3239
|
|
|
3240 continue;
|
|
|
3241 }
|
|
|
3242
|
|
260
|
3243 if (ngx_strncmp(value[i].data, "down", 4) == 0) {
|
|
|
3244
|
|
|
3245 if (!(uscf->flags & NGX_HTTP_UPSTREAM_DOWN)) {
|
|
|
3246 goto invalid;
|
|
|
3247 }
|
|
|
3248
|
|
|
3249 us->down = 1;
|
|
|
3250
|
|
|
3251 continue;
|
|
|
3252 }
|
|
|
3253
|
|
|
3254 goto invalid;
|
|
212
|
3255 }
|
|
|
3256
|
|
260
|
3257 us->addrs = u.addrs;
|
|
|
3258 us->naddrs = u.naddrs;
|
|
|
3259 us->weight = weight;
|
|
|
3260 us->max_fails = max_fails;
|
|
|
3261 us->fail_timeout = fail_timeout;
|
|
200
|
3262
|
|
|
3263 return NGX_CONF_OK;
|
|
212
|
3264
|
|
|
3265 invalid:
|
|
|
3266
|
|
260
|
3267 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
3268 "invalid parameter \"%V\"", &value[i]);
|
|
212
|
3269
|
|
|
3270 return NGX_CONF_ERROR;
|
|
200
|
3271 }
|
|
|
3272
|
|
|
3273
|
|
|
3274 ngx_http_upstream_srv_conf_t *
|
|
260
|
3275 ngx_http_upstream_add(ngx_conf_t *cf, ngx_url_t *u, ngx_uint_t flags)
|
|
200
|
3276 {
|
|
|
3277 ngx_uint_t i;
|
|
260
|
3278 ngx_http_upstream_server_t *us;
|
|
200
|
3279 ngx_http_upstream_srv_conf_t *uscf, **uscfp;
|
|
|
3280 ngx_http_upstream_main_conf_t *umcf;
|
|
|
3281
|
|
260
|
3282 if (!(flags & NGX_HTTP_UPSTREAM_CREATE)) {
|
|
|
3283
|
|
340
|
3284 if (ngx_parse_url(cf->pool, u) != NGX_OK) {
|
|
200
|
3285 if (u->err) {
|
|
|
3286 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
3287 "%s in upstream \"%V\"", u->err, &u->url);
|
|
|
3288 }
|
|
|
3289
|
|
|
3290 return NULL;
|
|
|
3291 }
|
|
|
3292 }
|
|
|
3293
|
|
|
3294 umcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_upstream_module);
|
|
|
3295
|
|
|
3296 uscfp = umcf->upstreams.elts;
|
|
|
3297
|
|
|
3298 for (i = 0; i < umcf->upstreams.nelts; i++) {
|
|
266
|
3299
|
|
|
3300 if (uscfp[i]->host.len != u->host.len
|
|
260
|
3301 || ngx_strncasecmp(uscfp[i]->host.data, u->host.data, u->host.len)
|
|
|
3302 != 0)
|
|
|
3303 {
|
|
200
|
3304 continue;
|
|
|
3305 }
|
|
|
3306
|
|
260
|
3307 if ((flags & NGX_HTTP_UPSTREAM_CREATE)
|
|
|
3308 && (uscfp[i]->flags & NGX_HTTP_UPSTREAM_CREATE))
|
|
200
|
3309 {
|
|
260
|
3310 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
3311 "duplicate upstream \"%V\"", &u->host);
|
|
|
3312 return NULL;
|
|
200
|
3313 }
|
|
260
|
3314
|
|
266
|
3315 if ((uscfp[i]->flags & NGX_HTTP_UPSTREAM_CREATE) && u->port) {
|
|
260
|
3316 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
266
|
3317 "upstream \"%V\" may not have port %d",
|
|
|
3318 &u->host, u->port);
|
|
|
3319 return NULL;
|
|
|
3320 }
|
|
|
3321
|
|
|
3322 if ((flags & NGX_HTTP_UPSTREAM_CREATE) && uscfp[i]->port) {
|
|
|
3323 ngx_log_error(NGX_LOG_WARN, cf->log, 0,
|
|
|
3324 "upstream \"%V\" may not have port %d in %s:%ui",
|
|
|
3325 &u->host, uscfp[i]->port,
|
|
336
|
3326 uscfp[i]->file_name, uscfp[i]->line);
|
|
266
|
3327 return NULL;
|
|
|
3328 }
|
|
|
3329
|
|
|
3330 if (uscfp[i]->port != u->port) {
|
|
|
3331 continue;
|
|
260
|
3332 }
|
|
|
3333
|
|
324
|
3334 if (uscfp[i]->default_port && u->default_port
|
|
|
3335 && uscfp[i]->default_port != u->default_port)
|
|
|
3336 {
|
|
|
3337 continue;
|
|
|
3338 }
|
|
|
3339
|
|
260
|
3340 return uscfp[i];
|
|
200
|
3341 }
|
|
|
3342
|
|
|
3343 uscf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_srv_conf_t));
|
|
|
3344 if (uscf == NULL) {
|
|
|
3345 return NULL;
|
|
|
3346 }
|
|
|
3347
|
|
260
|
3348 uscf->flags = flags;
|
|
200
|
3349 uscf->host = u->host;
|
|
336
|
3350 uscf->file_name = cf->conf_file->file.name.data;
|
|
200
|
3351 uscf->line = cf->conf_file->line;
|
|
266
|
3352 uscf->port = u->port;
|
|
|
3353 uscf->default_port = u->default_port;
|
|
260
|
3354
|
|
|
3355 if (u->naddrs == 1) {
|
|
|
3356 uscf->servers = ngx_array_create(cf->pool, 1,
|
|
|
3357 sizeof(ngx_http_upstream_server_t));
|
|
|
3358 if (uscf->servers == NULL) {
|
|
|
3359 return NGX_CONF_ERROR;
|
|
|
3360 }
|
|
|
3361
|
|
|
3362 us = ngx_array_push(uscf->servers);
|
|
|
3363 if (us == NULL) {
|
|
|
3364 return NGX_CONF_ERROR;
|
|
|
3365 }
|
|
|
3366
|
|
|
3367 ngx_memzero(us, sizeof(ngx_http_upstream_server_t));
|
|
|
3368
|
|
|
3369 us->addrs = u->addrs;
|
|
|
3370 us->naddrs = u->naddrs;
|
|
|
3371 }
|
|
200
|
3372
|
|
|
3373 uscfp = ngx_array_push(&umcf->upstreams);
|
|
|
3374 if (uscfp == NULL) {
|
|
|
3375 return NULL;
|
|
|
3376 }
|
|
|
3377
|
|
|
3378 *uscfp = uscf;
|
|
|
3379
|
|
|
3380 return uscf;
|
|
|
3381 }
|
|
|
3382
|
|
|
3383
|
|
356
|
3384 ngx_int_t
|
|
|
3385 ngx_http_upstream_hide_headers_hash(ngx_conf_t *cf,
|
|
|
3386 ngx_http_upstream_conf_t *conf, ngx_http_upstream_conf_t *prev,
|
|
|
3387 ngx_str_t *default_hide_headers, ngx_hash_init_t *hash)
|
|
|
3388 {
|
|
|
3389 ngx_str_t *h;
|
|
|
3390 ngx_uint_t i, j;
|
|
|
3391 ngx_array_t hide_headers;
|
|
|
3392 ngx_hash_key_t *hk;
|
|
|
3393
|
|
|
3394 if (conf->hide_headers == NGX_CONF_UNSET_PTR
|
|
|
3395 && conf->pass_headers == NGX_CONF_UNSET_PTR)
|
|
|
3396 {
|
|
|
3397 conf->hide_headers_hash = prev->hide_headers_hash;
|
|
|
3398
|
|
|
3399 if (conf->hide_headers_hash.buckets) {
|
|
|
3400 return NGX_OK;
|
|
|
3401 }
|
|
|
3402
|
|
|
3403 conf->hide_headers = prev->hide_headers;
|
|
|
3404 conf->pass_headers = prev->pass_headers;
|
|
|
3405
|
|
|
3406 } else {
|
|
|
3407 if (conf->hide_headers == NGX_CONF_UNSET_PTR) {
|
|
|
3408 conf->hide_headers = prev->hide_headers;
|
|
|
3409 }
|
|
|
3410
|
|
|
3411 if (conf->pass_headers == NGX_CONF_UNSET_PTR) {
|
|
|
3412 conf->pass_headers = prev->pass_headers;
|
|
|
3413 }
|
|
|
3414 }
|
|
|
3415
|
|
|
3416 if (ngx_array_init(&hide_headers, cf->temp_pool, 4, sizeof(ngx_hash_key_t))
|
|
|
3417 != NGX_OK)
|
|
|
3418 {
|
|
|
3419 return NGX_ERROR;
|
|
|
3420 }
|
|
|
3421
|
|
|
3422 for (h = default_hide_headers; h->len; h++) {
|
|
|
3423 hk = ngx_array_push(&hide_headers);
|
|
|
3424 if (hk == NULL) {
|
|
|
3425 return NGX_ERROR;
|
|
|
3426 }
|
|
|
3427
|
|
|
3428 hk->key = *h;
|
|
|
3429 hk->key_hash = ngx_hash_key_lc(h->data, h->len);
|
|
|
3430 hk->value = (void *) 1;
|
|
|
3431 }
|
|
|
3432
|
|
|
3433 if (conf->hide_headers != NGX_CONF_UNSET_PTR) {
|
|
|
3434
|
|
|
3435 h = conf->hide_headers->elts;
|
|
|
3436
|
|
|
3437 for (i = 0; i < conf->hide_headers->nelts; i++) {
|
|
|
3438
|
|
|
3439 hk = hide_headers.elts;
|
|
|
3440
|
|
|
3441 for (j = 0; j < hide_headers.nelts; j++) {
|
|
|
3442 if (ngx_strcasecmp(h[i].data, hk[j].key.data) == 0) {
|
|
|
3443 goto exist;
|
|
|
3444 }
|
|
|
3445 }
|
|
|
3446
|
|
|
3447 hk = ngx_array_push(&hide_headers);
|
|
|
3448 if (hk == NULL) {
|
|
|
3449 return NGX_ERROR;
|
|
|
3450 }
|
|
|
3451
|
|
|
3452 hk->key = h[i];
|
|
|
3453 hk->key_hash = ngx_hash_key_lc(h[i].data, h[i].len);
|
|
|
3454 hk->value = (void *) 1;
|
|
|
3455
|
|
|
3456 exist:
|
|
|
3457
|
|
|
3458 continue;
|
|
|
3459 }
|
|
|
3460 }
|
|
|
3461
|
|
|
3462 if (conf->pass_headers != NGX_CONF_UNSET_PTR) {
|
|
|
3463
|
|
|
3464 h = conf->pass_headers->elts;
|
|
|
3465 hk = hide_headers.elts;
|
|
|
3466
|
|
|
3467 for (i = 0; i < conf->pass_headers->nelts; i++) {
|
|
|
3468 for (j = 0; j < hide_headers.nelts; j++) {
|
|
|
3469
|
|
|
3470 if (hk[j].key.data == NULL) {
|
|
|
3471 continue;
|
|
|
3472 }
|
|
|
3473
|
|
|
3474 if (ngx_strcasecmp(h[i].data, hk[j].key.data) == 0) {
|
|
|
3475 hk[j].key.data = NULL;
|
|
|
3476 break;
|
|
|
3477 }
|
|
|
3478 }
|
|
|
3479 }
|
|
|
3480 }
|
|
|
3481
|
|
|
3482 hash->hash = &conf->hide_headers_hash;
|
|
|
3483 hash->key = ngx_hash_key_lc;
|
|
|
3484 hash->pool = cf->pool;
|
|
|
3485 hash->temp_pool = NULL;
|
|
|
3486
|
|
|
3487 return ngx_hash_init(hash, hide_headers.elts, hide_headers.nelts);
|
|
|
3488 }
|
|
|
3489
|
|
|
3490
|
|
58
|
3491 static void *
|
|
|
3492 ngx_http_upstream_create_main_conf(ngx_conf_t *cf)
|
|
|
3493 {
|
|
|
3494 ngx_http_upstream_main_conf_t *umcf;
|
|
|
3495
|
|
|
3496 umcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_main_conf_t));
|
|
|
3497 if (umcf == NULL) {
|
|
|
3498 return NULL;
|
|
|
3499 }
|
|
|
3500
|
|
200
|
3501 if (ngx_array_init(&umcf->upstreams, cf->pool, 4,
|
|
|
3502 sizeof(ngx_http_upstream_srv_conf_t *))
|
|
|
3503 != NGX_OK)
|
|
|
3504 {
|
|
|
3505 return NGX_CONF_ERROR;
|
|
|
3506 }
|
|
|
3507
|
|
58
|
3508 return umcf;
|
|
|
3509 }
|
|
|
3510
|
|
|
3511
|
|
|
3512 static char *
|
|
200
|
3513 ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf)
|
|
58
|
3514 {
|
|
|
3515 ngx_http_upstream_main_conf_t *umcf = conf;
|
|
|
3516
|
|
200
|
3517 ngx_uint_t i;
|
|
|
3518 ngx_array_t headers_in;
|
|
|
3519 ngx_hash_key_t *hk;
|
|
|
3520 ngx_hash_init_t hash;
|
|
260
|
3521 ngx_http_upstream_init_pt init;
|
|
200
|
3522 ngx_http_upstream_header_t *header;
|
|
|
3523 ngx_http_upstream_srv_conf_t **uscfp;
|
|
|
3524
|
|
|
3525 uscfp = umcf->upstreams.elts;
|
|
|
3526
|
|
|
3527 for (i = 0; i < umcf->upstreams.nelts; i++) {
|
|
260
|
3528
|
|
|
3529 init = uscfp[i]->peer.init_upstream ? uscfp[i]->peer.init_upstream:
|
|
|
3530 ngx_http_upstream_init_round_robin;
|
|
|
3531
|
|
|
3532 if (init(cf, uscfp[i]) != NGX_OK) {
|
|
200
|
3533 return NGX_CONF_ERROR;
|
|
|
3534 }
|
|
|
3535 }
|
|
198
|
3536
|
|
212
|
3537
|
|
260
|
3538 /* upstream_headers_in_hash */
|
|
|
3539
|
|
198
|
3540 if (ngx_array_init(&headers_in, cf->temp_pool, 32, sizeof(ngx_hash_key_t))
|
|
|
3541 != NGX_OK)
|
|
58
|
3542 {
|
|
|
3543 return NGX_CONF_ERROR;
|
|
|
3544 }
|
|
|
3545
|
|
198
|
3546 for (header = ngx_http_upstream_headers_in; header->name.len; header++) {
|
|
|
3547 hk = ngx_array_push(&headers_in);
|
|
|
3548 if (hk == NULL) {
|
|
|
3549 return NGX_CONF_ERROR;
|
|
|
3550 }
|
|
|
3551
|
|
|
3552 hk->key = header->name;
|
|
|
3553 hk->key_hash = ngx_hash_key_lc(header->name.data, header->name.len);
|
|
|
3554 hk->value = header;
|
|
|
3555 }
|
|
|
3556
|
|
|
3557 hash.hash = &umcf->headers_in_hash;
|
|
|
3558 hash.key = ngx_hash_key_lc;
|
|
|
3559 hash.max_size = 512;
|
|
244
|
3560 hash.bucket_size = ngx_align(64, ngx_cacheline_size);
|
|
198
|
3561 hash.name = "upstream_headers_in_hash";
|
|
|
3562 hash.pool = cf->pool;
|
|
|
3563 hash.temp_pool = NULL;
|
|
|
3564
|
|
|
3565 if (ngx_hash_init(&hash, headers_in.elts, headers_in.nelts) != NGX_OK) {
|
|
|
3566 return NGX_CONF_ERROR;
|
|
|
3567 }
|
|
58
|
3568
|
|
|
3569 return NGX_CONF_OK;
|
|
|
3570 }
|
