|
28
|
1
|
|
|
2 /*
|
|
|
3 * Copyright (C) Igor Sysoev
|
|
660
|
4 * Copyright (C) Nginx, Inc.
|
|
28
|
5 */
|
|
|
6
|
|
|
7
|
|
|
8 #include <ngx_config.h>
|
|
|
9 #include <ngx_core.h>
|
|
|
10 #include <ngx_http.h>
|
|
|
11
|
|
|
12
|
|
464
|
13 #if (NGX_HTTP_CACHE)
|
|
|
14 static ngx_int_t ngx_http_upstream_cache(ngx_http_request_t *r,
|
|
|
15 ngx_http_upstream_t *u);
|
|
|
16 static ngx_int_t ngx_http_upstream_cache_send(ngx_http_request_t *r,
|
|
|
17 ngx_http_upstream_t *u);
|
|
502
|
18 static ngx_int_t ngx_http_upstream_cache_status(ngx_http_request_t *r,
|
|
|
19 ngx_http_variable_value_t *v, uintptr_t data);
|
|
464
|
20 #endif
|
|
|
21
|
|
518
|
22 static void ngx_http_upstream_init_request(ngx_http_request_t *r);
|
|
348
|
23 static void ngx_http_upstream_resolve_handler(ngx_resolver_ctx_t *ctx);
|
|
58
|
24 static void ngx_http_upstream_rd_check_broken_connection(ngx_http_request_t *r);
|
|
|
25 static void ngx_http_upstream_wr_check_broken_connection(ngx_http_request_t *r);
|
|
|
26 static void ngx_http_upstream_check_broken_connection(ngx_http_request_t *r,
|
|
|
27 ngx_event_t *ev);
|
|
28
|
28 static void ngx_http_upstream_connect(ngx_http_request_t *r,
|
|
36
|
29 ngx_http_upstream_t *u);
|
|
58
|
30 static ngx_int_t ngx_http_upstream_reinit(ngx_http_request_t *r,
|
|
36
|
31 ngx_http_upstream_t *u);
|
|
28
|
32 static void ngx_http_upstream_send_request(ngx_http_request_t *r,
|
|
36
|
33 ngx_http_upstream_t *u);
|
|
430
|
34 static void ngx_http_upstream_send_request_handler(ngx_http_request_t *r,
|
|
|
35 ngx_http_upstream_t *u);
|
|
|
36 static void ngx_http_upstream_process_header(ngx_http_request_t *r,
|
|
|
37 ngx_http_upstream_t *u);
|
|
412
|
38 static ngx_int_t ngx_http_upstream_test_next(ngx_http_request_t *r,
|
|
|
39 ngx_http_upstream_t *u);
|
|
|
40 static ngx_int_t ngx_http_upstream_intercept_errors(ngx_http_request_t *r,
|
|
|
41 ngx_http_upstream_t *u);
|
|
294
|
42 static ngx_int_t ngx_http_upstream_test_connect(ngx_connection_t *c);
|
|
464
|
43 static ngx_int_t ngx_http_upstream_process_headers(ngx_http_request_t *r,
|
|
|
44 ngx_http_upstream_t *u);
|
|
430
|
45 static void ngx_http_upstream_process_body_in_memory(ngx_http_request_t *r,
|
|
|
46 ngx_http_upstream_t *u);
|
|
28
|
47 static void ngx_http_upstream_send_response(ngx_http_request_t *r,
|
|
36
|
48 ngx_http_upstream_t *u);
|
|
130
|
49 static void
|
|
|
50 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r);
|
|
430
|
51 static void
|
|
|
52 ngx_http_upstream_process_non_buffered_upstream(ngx_http_request_t *r,
|
|
|
53 ngx_http_upstream_t *u);
|
|
428
|
54 static void
|
|
|
55 ngx_http_upstream_process_non_buffered_request(ngx_http_request_t *r,
|
|
|
56 ngx_uint_t do_write);
|
|
130
|
57 static ngx_int_t ngx_http_upstream_non_buffered_filter_init(void *data);
|
|
|
58 static ngx_int_t ngx_http_upstream_non_buffered_filter(void *data,
|
|
|
59 ssize_t bytes);
|
|
58
|
60 static void ngx_http_upstream_process_downstream(ngx_http_request_t *r);
|
|
430
|
61 static void ngx_http_upstream_process_upstream(ngx_http_request_t *r,
|
|
|
62 ngx_http_upstream_t *u);
|
|
428
|
63 static void ngx_http_upstream_process_request(ngx_http_request_t *r);
|
|
318
|
64 static void ngx_http_upstream_store(ngx_http_request_t *r,
|
|
|
65 ngx_http_upstream_t *u);
|
|
430
|
66 static void ngx_http_upstream_dummy_handler(ngx_http_request_t *r,
|
|
|
67 ngx_http_upstream_t *u);
|
|
28
|
68 static void ngx_http_upstream_next(ngx_http_request_t *r,
|
|
36
|
69 ngx_http_upstream_t *u, ngx_uint_t ft_type);
|
|
118
|
70 static void ngx_http_upstream_cleanup(void *data);
|
|
28
|
71 static void ngx_http_upstream_finalize_request(ngx_http_request_t *r,
|
|
36
|
72 ngx_http_upstream_t *u, ngx_int_t rc);
|
|
28
|
73
|
|
58
|
74 static ngx_int_t ngx_http_upstream_process_header_line(ngx_http_request_t *r,
|
|
|
75 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
640
|
76 static ngx_int_t ngx_http_upstream_process_content_length(ngx_http_request_t *r,
|
|
|
77 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
584
|
78 static ngx_int_t ngx_http_upstream_process_set_cookie(ngx_http_request_t *r,
|
|
|
79 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
58
|
80 static ngx_int_t
|
|
472
|
81 ngx_http_upstream_process_cache_control(ngx_http_request_t *r,
|
|
58
|
82 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
83 static ngx_int_t ngx_http_upstream_ignore_header_line(ngx_http_request_t *r,
|
|
|
84 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
472
|
85 static ngx_int_t ngx_http_upstream_process_expires(ngx_http_request_t *r,
|
|
|
86 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
87 static ngx_int_t ngx_http_upstream_process_accel_expires(ngx_http_request_t *r,
|
|
|
88 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
76
|
89 static ngx_int_t ngx_http_upstream_process_limit_rate(ngx_http_request_t *r,
|
|
|
90 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
198
|
91 static ngx_int_t ngx_http_upstream_process_buffering(ngx_http_request_t *r,
|
|
58
|
92 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
206
|
93 static ngx_int_t ngx_http_upstream_process_charset(ngx_http_request_t *r,
|
|
|
94 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
640
|
95 static ngx_int_t ngx_http_upstream_process_connection(ngx_http_request_t *r,
|
|
|
96 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
97 static ngx_int_t
|
|
|
98 ngx_http_upstream_process_transfer_encoding(ngx_http_request_t *r,
|
|
|
99 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
198
|
100 static ngx_int_t ngx_http_upstream_copy_header_line(ngx_http_request_t *r,
|
|
58
|
101 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
102 static ngx_int_t
|
|
|
103 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r,
|
|
|
104 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
105 static ngx_int_t ngx_http_upstream_copy_content_type(ngx_http_request_t *r,
|
|
|
106 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
464
|
107 static ngx_int_t ngx_http_upstream_copy_last_modified(ngx_http_request_t *r,
|
|
|
108 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
58
|
109 static ngx_int_t ngx_http_upstream_rewrite_location(ngx_http_request_t *r,
|
|
|
110 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
111 static ngx_int_t ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r,
|
|
|
112 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
662
|
113 static ngx_int_t ngx_http_upstream_rewrite_set_cookie(ngx_http_request_t *r,
|
|
|
114 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
464
|
115 static ngx_int_t ngx_http_upstream_copy_allow_ranges(ngx_http_request_t *r,
|
|
|
116 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
117
|
|
58
|
118 #if (NGX_HTTP_GZIP)
|
|
|
119 static ngx_int_t ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r,
|
|
|
120 ngx_table_elt_t *h, ngx_uint_t offset);
|
|
|
121 #endif
|
|
|
122
|
|
122
|
123 static ngx_int_t ngx_http_upstream_add_variables(ngx_conf_t *cf);
|
|
298
|
124 static ngx_int_t ngx_http_upstream_addr_variable(ngx_http_request_t *r,
|
|
|
125 ngx_http_variable_value_t *v, uintptr_t data);
|
|
122
|
126 static ngx_int_t ngx_http_upstream_status_variable(ngx_http_request_t *r,
|
|
|
127 ngx_http_variable_value_t *v, uintptr_t data);
|
|
|
128 static ngx_int_t ngx_http_upstream_response_time_variable(ngx_http_request_t *r,
|
|
|
129 ngx_http_variable_value_t *v, uintptr_t data);
|
|
430
|
130 static ngx_int_t ngx_http_upstream_response_length_variable(
|
|
|
131 ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data);
|
|
122
|
132
|
|
200
|
133 static char *ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy);
|
|
|
134 static char *ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd,
|
|
|
135 void *conf);
|
|
|
136
|
|
58
|
137 static void *ngx_http_upstream_create_main_conf(ngx_conf_t *cf);
|
|
200
|
138 static char *ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf);
|
|
58
|
139
|
|
126
|
140 #if (NGX_HTTP_SSL)
|
|
140
|
141 static void ngx_http_upstream_ssl_init_connection(ngx_http_request_t *,
|
|
|
142 ngx_http_upstream_t *u, ngx_connection_t *c);
|
|
126
|
143 static void ngx_http_upstream_ssl_handshake(ngx_connection_t *c);
|
|
|
144 #endif
|
|
|
145
|
|
58
|
146
|
|
|
147 ngx_http_upstream_header_t ngx_http_upstream_headers_in[] = {
|
|
|
148
|
|
|
149 { ngx_string("Status"),
|
|
|
150 ngx_http_upstream_process_header_line,
|
|
|
151 offsetof(ngx_http_upstream_headers_in_t, status),
|
|
198
|
152 ngx_http_upstream_copy_header_line, 0, 0 },
|
|
58
|
153
|
|
|
154 { ngx_string("Content-Type"),
|
|
|
155 ngx_http_upstream_process_header_line,
|
|
|
156 offsetof(ngx_http_upstream_headers_in_t, content_type),
|
|
222
|
157 ngx_http_upstream_copy_content_type, 0, 1 },
|
|
58
|
158
|
|
|
159 { ngx_string("Content-Length"),
|
|
640
|
160 ngx_http_upstream_process_content_length,
|
|
58
|
161 offsetof(ngx_http_upstream_headers_in_t, content_length),
|
|
640
|
162 ngx_http_upstream_ignore_header_line, 0, 0 },
|
|
58
|
163
|
|
|
164 { ngx_string("Date"),
|
|
|
165 ngx_http_upstream_process_header_line,
|
|
|
166 offsetof(ngx_http_upstream_headers_in_t, date),
|
|
198
|
167 ngx_http_upstream_copy_header_line,
|
|
|
168 offsetof(ngx_http_headers_out_t, date), 0 },
|
|
58
|
169
|
|
318
|
170 { ngx_string("Last-Modified"),
|
|
|
171 ngx_http_upstream_process_header_line,
|
|
|
172 offsetof(ngx_http_upstream_headers_in_t, last_modified),
|
|
464
|
173 ngx_http_upstream_copy_last_modified, 0, 0 },
|
|
318
|
174
|
|
516
|
175 { ngx_string("ETag"),
|
|
|
176 ngx_http_upstream_process_header_line,
|
|
|
177 offsetof(ngx_http_upstream_headers_in_t, etag),
|
|
|
178 ngx_http_upstream_copy_header_line,
|
|
|
179 offsetof(ngx_http_headers_out_t, etag), 0 },
|
|
|
180
|
|
58
|
181 { ngx_string("Server"),
|
|
|
182 ngx_http_upstream_process_header_line,
|
|
|
183 offsetof(ngx_http_upstream_headers_in_t, server),
|
|
198
|
184 ngx_http_upstream_copy_header_line,
|
|
|
185 offsetof(ngx_http_headers_out_t, server), 0 },
|
|
58
|
186
|
|
78
|
187 { ngx_string("WWW-Authenticate"),
|
|
|
188 ngx_http_upstream_process_header_line,
|
|
|
189 offsetof(ngx_http_upstream_headers_in_t, www_authenticate),
|
|
|
190 ngx_http_upstream_copy_header_line, 0, 0 },
|
|
|
191
|
|
58
|
192 { ngx_string("Location"),
|
|
392
|
193 ngx_http_upstream_process_header_line,
|
|
|
194 offsetof(ngx_http_upstream_headers_in_t, location),
|
|
64
|
195 ngx_http_upstream_rewrite_location, 0, 0 },
|
|
58
|
196
|
|
|
197 { ngx_string("Refresh"),
|
|
|
198 ngx_http_upstream_ignore_header_line, 0,
|
|
64
|
199 ngx_http_upstream_rewrite_refresh, 0, 0 },
|
|
|
200
|
|
|
201 { ngx_string("Set-Cookie"),
|
|
584
|
202 ngx_http_upstream_process_set_cookie, 0,
|
|
662
|
203 ngx_http_upstream_rewrite_set_cookie, 0, 1 },
|
|
80
|
204
|
|
|
205 { ngx_string("Content-Disposition"),
|
|
|
206 ngx_http_upstream_ignore_header_line, 0,
|
|
|
207 ngx_http_upstream_copy_header_line, 0, 1 },
|
|
58
|
208
|
|
|
209 { ngx_string("Cache-Control"),
|
|
472
|
210 ngx_http_upstream_process_cache_control, 0,
|
|
58
|
211 ngx_http_upstream_copy_multi_header_lines,
|
|
64
|
212 offsetof(ngx_http_headers_out_t, cache_control), 1 },
|
|
58
|
213
|
|
122
|
214 { ngx_string("Expires"),
|
|
472
|
215 ngx_http_upstream_process_expires, 0,
|
|
122
|
216 ngx_http_upstream_copy_header_line,
|
|
|
217 offsetof(ngx_http_headers_out_t, expires), 1 },
|
|
|
218
|
|
126
|
219 { ngx_string("Accept-Ranges"),
|
|
|
220 ngx_http_upstream_process_header_line,
|
|
|
221 offsetof(ngx_http_upstream_headers_in_t, accept_ranges),
|
|
464
|
222 ngx_http_upstream_copy_allow_ranges,
|
|
126
|
223 offsetof(ngx_http_headers_out_t, accept_ranges), 1 },
|
|
|
224
|
|
58
|
225 { ngx_string("Connection"),
|
|
640
|
226 ngx_http_upstream_process_connection, 0,
|
|
64
|
227 ngx_http_upstream_ignore_header_line, 0, 0 },
|
|
58
|
228
|
|
190
|
229 { ngx_string("Keep-Alive"),
|
|
|
230 ngx_http_upstream_ignore_header_line, 0,
|
|
|
231 ngx_http_upstream_ignore_header_line, 0, 0 },
|
|
|
232
|
|
58
|
233 { ngx_string("X-Powered-By"),
|
|
|
234 ngx_http_upstream_ignore_header_line, 0,
|
|
198
|
235 ngx_http_upstream_copy_header_line, 0, 0 },
|
|
58
|
236
|
|
|
237 { ngx_string("X-Accel-Expires"),
|
|
472
|
238 ngx_http_upstream_process_accel_expires, 0,
|
|
198
|
239 ngx_http_upstream_copy_header_line, 0, 0 },
|
|
64
|
240
|
|
|
241 { ngx_string("X-Accel-Redirect"),
|
|
|
242 ngx_http_upstream_process_header_line,
|
|
|
243 offsetof(ngx_http_upstream_headers_in_t, x_accel_redirect),
|
|
510
|
244 ngx_http_upstream_copy_header_line, 0, 0 },
|
|
58
|
245
|
|
76
|
246 { ngx_string("X-Accel-Limit-Rate"),
|
|
|
247 ngx_http_upstream_process_limit_rate, 0,
|
|
510
|
248 ngx_http_upstream_copy_header_line, 0, 0 },
|
|
76
|
249
|
|
198
|
250 { ngx_string("X-Accel-Buffering"),
|
|
|
251 ngx_http_upstream_process_buffering, 0,
|
|
510
|
252 ngx_http_upstream_copy_header_line, 0, 0 },
|
|
198
|
253
|
|
206
|
254 { ngx_string("X-Accel-Charset"),
|
|
|
255 ngx_http_upstream_process_charset, 0,
|
|
510
|
256 ngx_http_upstream_copy_header_line, 0, 0 },
|
|
206
|
257
|
|
640
|
258 { ngx_string("Transfer-Encoding"),
|
|
|
259 ngx_http_upstream_process_transfer_encoding, 0,
|
|
|
260 ngx_http_upstream_ignore_header_line, 0, 0 },
|
|
|
261
|
|
58
|
262 #if (NGX_HTTP_GZIP)
|
|
|
263 { ngx_string("Content-Encoding"),
|
|
|
264 ngx_http_upstream_process_header_line,
|
|
|
265 offsetof(ngx_http_upstream_headers_in_t, content_encoding),
|
|
64
|
266 ngx_http_upstream_copy_content_encoding, 0, 0 },
|
|
58
|
267 #endif
|
|
|
268
|
|
64
|
269 { ngx_null_string, NULL, 0, NULL, 0, 0 }
|
|
58
|
270 };
|
|
28
|
271
|
|
|
272
|
|
200
|
273 static ngx_command_t ngx_http_upstream_commands[] = {
|
|
|
274
|
|
|
275 { ngx_string("upstream"),
|
|
|
276 NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE1,
|
|
|
277 ngx_http_upstream,
|
|
|
278 0,
|
|
|
279 0,
|
|
|
280 NULL },
|
|
|
281
|
|
|
282 { ngx_string("server"),
|
|
260
|
283 NGX_HTTP_UPS_CONF|NGX_CONF_1MORE,
|
|
200
|
284 ngx_http_upstream_server,
|
|
|
285 NGX_HTTP_SRV_CONF_OFFSET,
|
|
|
286 0,
|
|
|
287 NULL },
|
|
|
288
|
|
|
289 ngx_null_command
|
|
|
290 };
|
|
|
291
|
|
|
292
|
|
|
293 static ngx_http_module_t ngx_http_upstream_module_ctx = {
|
|
122
|
294 ngx_http_upstream_add_variables, /* preconfiguration */
|
|
58
|
295 NULL, /* postconfiguration */
|
|
|
296
|
|
|
297 ngx_http_upstream_create_main_conf, /* create main configuration */
|
|
200
|
298 ngx_http_upstream_init_main_conf, /* init main configuration */
|
|
28
|
299
|
|
|
300 NULL, /* create server configuration */
|
|
|
301 NULL, /* merge server configuration */
|
|
|
302
|
|
|
303 NULL, /* create location configuration */
|
|
|
304 NULL /* merge location configuration */
|
|
|
305 };
|
|
126
|
306
|
|
28
|
307
|
|
|
308 ngx_module_t ngx_http_upstream_module = {
|
|
58
|
309 NGX_MODULE_V1,
|
|
28
|
310 &ngx_http_upstream_module_ctx, /* module context */
|
|
200
|
311 ngx_http_upstream_commands, /* module directives */
|
|
28
|
312 NGX_HTTP_MODULE, /* module type */
|
|
90
|
313 NULL, /* init master */
|
|
28
|
314 NULL, /* init module */
|
|
90
|
315 NULL, /* init process */
|
|
|
316 NULL, /* init thread */
|
|
|
317 NULL, /* exit thread */
|
|
|
318 NULL, /* exit process */
|
|
|
319 NULL, /* exit master */
|
|
|
320 NGX_MODULE_V1_PADDING
|
|
28
|
321 };
|
|
|
322
|
|
|
323
|
|
122
|
324 static ngx_http_variable_t ngx_http_upstream_vars[] = {
|
|
|
325
|
|
298
|
326 { ngx_string("upstream_addr"), NULL,
|
|
426
|
327 ngx_http_upstream_addr_variable, 0,
|
|
622
|
328 NGX_HTTP_VAR_NOCACHEABLE, 0 },
|
|
298
|
329
|
|
186
|
330 { ngx_string("upstream_status"), NULL,
|
|
426
|
331 ngx_http_upstream_status_variable, 0,
|
|
622
|
332 NGX_HTTP_VAR_NOCACHEABLE, 0 },
|
|
122
|
333
|
|
186
|
334 { ngx_string("upstream_response_time"), NULL,
|
|
426
|
335 ngx_http_upstream_response_time_variable, 0,
|
|
622
|
336 NGX_HTTP_VAR_NOCACHEABLE, 0 },
|
|
122
|
337
|
|
430
|
338 { ngx_string("upstream_response_length"), NULL,
|
|
|
339 ngx_http_upstream_response_length_variable, 0,
|
|
622
|
340 NGX_HTTP_VAR_NOCACHEABLE, 0 },
|
|
430
|
341
|
|
504
|
342 #if (NGX_HTTP_CACHE)
|
|
|
343
|
|
502
|
344 { ngx_string("upstream_cache_status"), NULL,
|
|
|
345 ngx_http_upstream_cache_status, 0,
|
|
622
|
346 NGX_HTTP_VAR_NOCACHEABLE, 0 },
|
|
502
|
347
|
|
504
|
348 #endif
|
|
|
349
|
|
186
|
350 { ngx_null_string, NULL, NULL, 0, 0, 0 }
|
|
122
|
351 };
|
|
|
352
|
|
|
353
|
|
412
|
354 static ngx_http_upstream_next_t ngx_http_upstream_next_errors[] = {
|
|
|
355 { 500, NGX_HTTP_UPSTREAM_FT_HTTP_500 },
|
|
|
356 { 502, NGX_HTTP_UPSTREAM_FT_HTTP_502 },
|
|
|
357 { 503, NGX_HTTP_UPSTREAM_FT_HTTP_503 },
|
|
|
358 { 504, NGX_HTTP_UPSTREAM_FT_HTTP_504 },
|
|
|
359 { 404, NGX_HTTP_UPSTREAM_FT_HTTP_404 },
|
|
|
360 { 0, 0 }
|
|
|
361 };
|
|
|
362
|
|
494
|
363
|
|
|
364 ngx_conf_bitmask_t ngx_http_upstream_cache_method_mask[] = {
|
|
|
365 { ngx_string("GET"), NGX_HTTP_GET},
|
|
|
366 { ngx_string("HEAD"), NGX_HTTP_HEAD },
|
|
|
367 { ngx_string("POST"), NGX_HTTP_POST },
|
|
|
368 { ngx_null_string, 0 }
|
|
|
369 };
|
|
|
370
|
|
|
371
|
|
584
|
372 ngx_conf_bitmask_t ngx_http_upstream_ignore_headers_masks[] = {
|
|
|
373 { ngx_string("X-Accel-Redirect"), NGX_HTTP_UPSTREAM_IGN_XA_REDIRECT },
|
|
|
374 { ngx_string("X-Accel-Expires"), NGX_HTTP_UPSTREAM_IGN_XA_EXPIRES },
|
|
644
|
375 { ngx_string("X-Accel-Limit-Rate"), NGX_HTTP_UPSTREAM_IGN_XA_LIMIT_RATE },
|
|
|
376 { ngx_string("X-Accel-Buffering"), NGX_HTTP_UPSTREAM_IGN_XA_BUFFERING },
|
|
|
377 { ngx_string("X-Accel-Charset"), NGX_HTTP_UPSTREAM_IGN_XA_CHARSET },
|
|
584
|
378 { ngx_string("Expires"), NGX_HTTP_UPSTREAM_IGN_EXPIRES },
|
|
|
379 { ngx_string("Cache-Control"), NGX_HTTP_UPSTREAM_IGN_CACHE_CONTROL },
|
|
|
380 { ngx_string("Set-Cookie"), NGX_HTTP_UPSTREAM_IGN_SET_COOKIE },
|
|
|
381 { ngx_null_string, 0 }
|
|
|
382 };
|
|
|
383
|
|
|
384
|
|
510
|
385 ngx_int_t
|
|
|
386 ngx_http_upstream_create(ngx_http_request_t *r)
|
|
|
387 {
|
|
|
388 ngx_http_upstream_t *u;
|
|
|
389
|
|
|
390 u = r->upstream;
|
|
|
391
|
|
|
392 if (u && u->cleanup) {
|
|
526
|
393 r->main->count++;
|
|
510
|
394 ngx_http_upstream_cleanup(r);
|
|
|
395 }
|
|
|
396
|
|
|
397 u = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_t));
|
|
|
398 if (u == NULL) {
|
|
|
399 return NGX_ERROR;
|
|
|
400 }
|
|
|
401
|
|
|
402 r->upstream = u;
|
|
|
403
|
|
|
404 u->peer.log = r->connection->log;
|
|
|
405 u->peer.log_error = NGX_ERROR_ERR;
|
|
|
406 #if (NGX_THREADS)
|
|
|
407 u->peer.lock = &r->connection->lock;
|
|
|
408 #endif
|
|
|
409
|
|
518
|
410 #if (NGX_HTTP_CACHE)
|
|
|
411 r->cache = NULL;
|
|
|
412 #endif
|
|
|
413
|
|
640
|
414 u->headers_in.content_length_n = -1;
|
|
|
415
|
|
510
|
416 return NGX_OK;
|
|
|
417 }
|
|
|
418
|
|
|
419
|
|
36
|
420 void
|
|
|
421 ngx_http_upstream_init(ngx_http_request_t *r)
|
|
28
|
422 {
|
|
518
|
423 ngx_connection_t *c;
|
|
28
|
424
|
|
|
425 c = r->connection;
|
|
|
426
|
|
|
427 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
428 "http init upstream, client timer: %d", c->read->timer_set);
|
|
|
429
|
|
|
430 if (c->read->timer_set) {
|
|
|
431 ngx_del_timer(c->read);
|
|
|
432 }
|
|
|
433
|
|
|
434 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) {
|
|
|
435
|
|
|
436 if (!c->write->active) {
|
|
80
|
437 if (ngx_add_event(c->write, NGX_WRITE_EVENT, NGX_CLEAR_EVENT)
|
|
|
438 == NGX_ERROR)
|
|
28
|
439 {
|
|
|
440 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
441 return;
|
|
|
442 }
|
|
|
443 }
|
|
|
444 }
|
|
|
445
|
|
518
|
446 ngx_http_upstream_init_request(r);
|
|
|
447 }
|
|
|
448
|
|
|
449
|
|
|
450 static void
|
|
|
451 ngx_http_upstream_init_request(ngx_http_request_t *r)
|
|
|
452 {
|
|
|
453 ngx_str_t *host;
|
|
|
454 ngx_uint_t i;
|
|
|
455 ngx_resolver_ctx_t *ctx, temp;
|
|
|
456 ngx_http_cleanup_t *cln;
|
|
|
457 ngx_http_upstream_t *u;
|
|
|
458 ngx_http_core_loc_conf_t *clcf;
|
|
|
459 ngx_http_upstream_srv_conf_t *uscf, **uscfp;
|
|
|
460 ngx_http_upstream_main_conf_t *umcf;
|
|
|
461
|
|
|
462 if (r->aio) {
|
|
|
463 return;
|
|
86
|
464 }
|
|
58
|
465
|
|
518
|
466 u = r->upstream;
|
|
|
467
|
|
464
|
468 #if (NGX_HTTP_CACHE)
|
|
|
469
|
|
|
470 if (u->conf->cache) {
|
|
|
471 ngx_int_t rc;
|
|
|
472
|
|
|
473 rc = ngx_http_upstream_cache(r, u);
|
|
|
474
|
|
518
|
475 if (rc == NGX_BUSY) {
|
|
|
476 r->write_event_handler = ngx_http_upstream_init_request;
|
|
|
477 return;
|
|
|
478 }
|
|
|
479
|
|
|
480 r->write_event_handler = ngx_http_request_empty_handler;
|
|
|
481
|
|
464
|
482 if (rc == NGX_DONE) {
|
|
|
483 return;
|
|
|
484 }
|
|
|
485
|
|
|
486 if (rc != NGX_DECLINED) {
|
|
|
487 ngx_http_finalize_request(r, rc);
|
|
|
488 return;
|
|
|
489 }
|
|
|
490 }
|
|
|
491
|
|
|
492 #endif
|
|
|
493
|
|
518
|
494 u->store = (u->conf->store || u->conf->store_lengths);
|
|
|
495
|
|
|
496 if (!u->store && !r->post_action && !u->conf->ignore_client_abort) {
|
|
|
497 r->read_event_handler = ngx_http_upstream_rd_check_broken_connection;
|
|
|
498 r->write_event_handler = ngx_http_upstream_wr_check_broken_connection;
|
|
|
499 }
|
|
|
500
|
|
|
501 if (r->request_body) {
|
|
|
502 u->request_bufs = r->request_body->bufs;
|
|
|
503 }
|
|
|
504
|
|
86
|
505 if (u->create_request(r) != NGX_OK) {
|
|
28
|
506 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
507 return;
|
|
|
508 }
|
|
|
509
|
|
540
|
510 u->peer.local = u->conf->local;
|
|
|
511
|
|
58
|
512 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
28
|
513
|
|
518
|
514 u->output.alignment = clcf->directio_alignment;
|
|
28
|
515 u->output.pool = r->pool;
|
|
|
516 u->output.bufs.num = 1;
|
|
58
|
517 u->output.bufs.size = clcf->client_body_buffer_size;
|
|
28
|
518 u->output.output_filter = ngx_chain_writer;
|
|
|
519 u->output.filter_ctx = &u->writer;
|
|
|
520
|
|
|
521 u->writer.pool = r->pool;
|
|
|
522
|
|
296
|
523 if (r->upstream_states == NULL) {
|
|
|
524
|
|
|
525 r->upstream_states = ngx_array_create(r->pool, 1,
|
|
|
526 sizeof(ngx_http_upstream_state_t));
|
|
|
527 if (r->upstream_states == NULL) {
|
|
|
528 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
529 return;
|
|
|
530 }
|
|
|
531
|
|
|
532 } else {
|
|
|
533
|
|
|
534 u->state = ngx_array_push(r->upstream_states);
|
|
|
535 if (u->state == NULL) {
|
|
|
536 ngx_http_upstream_finalize_request(r, u,
|
|
|
537 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
538 return;
|
|
|
539 }
|
|
|
540
|
|
|
541 ngx_memzero(u->state, sizeof(ngx_http_upstream_state_t));
|
|
28
|
542 }
|
|
|
543
|
|
142
|
544 cln = ngx_http_cleanup_add(r, 0);
|
|
118
|
545 if (cln == NULL) {
|
|
|
546 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
547 return;
|
|
|
548 }
|
|
|
549
|
|
|
550 cln->handler = ngx_http_upstream_cleanup;
|
|
|
551 cln->data = r;
|
|
|
552 u->cleanup = &cln->handler;
|
|
|
553
|
|
348
|
554 if (u->resolved == NULL) {
|
|
|
555
|
|
|
556 uscf = u->conf->upstream;
|
|
|
557
|
|
|
558 } else {
|
|
|
559
|
|
434
|
560 if (u->resolved->sockaddr) {
|
|
|
561
|
|
|
562 if (ngx_http_upstream_create_round_robin_peer(r, u->resolved)
|
|
|
563 != NGX_OK)
|
|
|
564 {
|
|
530
|
565 ngx_http_upstream_finalize_request(r, u,
|
|
|
566 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
434
|
567 return;
|
|
|
568 }
|
|
|
569
|
|
|
570 ngx_http_upstream_connect(r, u);
|
|
|
571
|
|
|
572 return;
|
|
|
573 }
|
|
|
574
|
|
356
|
575 host = &u->resolved->host;
|
|
348
|
576
|
|
|
577 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module);
|
|
|
578
|
|
|
579 uscfp = umcf->upstreams.elts;
|
|
|
580
|
|
|
581 for (i = 0; i < umcf->upstreams.nelts; i++) {
|
|
|
582
|
|
|
583 uscf = uscfp[i];
|
|
|
584
|
|
|
585 if (uscf->host.len == host->len
|
|
416
|
586 && ((uscf->port == 0 && u->resolved->no_port)
|
|
366
|
587 || uscf->port == u->resolved->port)
|
|
348
|
588 && ngx_memcmp(uscf->host.data, host->data, host->len) == 0)
|
|
|
589 {
|
|
|
590 goto found;
|
|
|
591 }
|
|
|
592 }
|
|
|
593
|
|
618
|
594 if (u->resolved->port == 0) {
|
|
|
595 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
596 "no port in upstream \"%V\"", host);
|
|
|
597 ngx_http_upstream_finalize_request(r, u,
|
|
|
598 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
599 return;
|
|
|
600 }
|
|
|
601
|
|
348
|
602 temp.name = *host;
|
|
|
603
|
|
|
604 ctx = ngx_resolve_start(clcf->resolver, &temp);
|
|
|
605 if (ctx == NULL) {
|
|
530
|
606 ngx_http_upstream_finalize_request(r, u,
|
|
|
607 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
348
|
608 return;
|
|
|
609 }
|
|
|
610
|
|
354
|
611 if (ctx == NGX_NO_RESOLVER) {
|
|
518
|
612 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
354
|
613 "no resolver defined to resolve %V", host);
|
|
|
614
|
|
530
|
615 ngx_http_upstream_finalize_request(r, u, NGX_HTTP_BAD_GATEWAY);
|
|
354
|
616 return;
|
|
|
617 }
|
|
|
618
|
|
348
|
619 ctx->name = *host;
|
|
|
620 ctx->type = NGX_RESOLVE_A;
|
|
|
621 ctx->handler = ngx_http_upstream_resolve_handler;
|
|
|
622 ctx->data = r;
|
|
|
623 ctx->timeout = clcf->resolver_timeout;
|
|
|
624
|
|
372
|
625 u->resolved->ctx = ctx;
|
|
|
626
|
|
348
|
627 if (ngx_resolve_name(ctx) != NGX_OK) {
|
|
372
|
628 u->resolved->ctx = NULL;
|
|
530
|
629 ngx_http_upstream_finalize_request(r, u,
|
|
|
630 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
348
|
631 return;
|
|
|
632 }
|
|
|
633
|
|
|
634 return;
|
|
|
635 }
|
|
|
636
|
|
|
637 found:
|
|
|
638
|
|
694
|
639 if (uscf == NULL) {
|
|
|
640 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
641 "no upstream configuration");
|
|
|
642 ngx_http_upstream_finalize_request(r, u,
|
|
|
643 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
644 return;
|
|
|
645 }
|
|
|
646
|
|
348
|
647 if (uscf->peer.init(r, uscf) != NGX_OK) {
|
|
530
|
648 ngx_http_upstream_finalize_request(r, u,
|
|
|
649 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
348
|
650 return;
|
|
|
651 }
|
|
|
652
|
|
28
|
653 ngx_http_upstream_connect(r, u);
|
|
|
654 }
|
|
|
655
|
|
|
656
|
|
464
|
657 #if (NGX_HTTP_CACHE)
|
|
|
658
|
|
|
659 static ngx_int_t
|
|
|
660 ngx_http_upstream_cache(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
|
661 {
|
|
|
662 ngx_int_t rc;
|
|
|
663 ngx_http_cache_t *c;
|
|
|
664
|
|
518
|
665 c = r->cache;
|
|
|
666
|
|
464
|
667 if (c == NULL) {
|
|
518
|
668
|
|
|
669 if (!(r->method & u->conf->cache_methods)) {
|
|
|
670 return NGX_DECLINED;
|
|
|
671 }
|
|
|
672
|
|
|
673 if (r->method & NGX_HTTP_HEAD) {
|
|
|
674 u->method = ngx_http_core_get_method;
|
|
|
675 }
|
|
|
676
|
|
588
|
677 if (ngx_http_file_cache_new(r) != NGX_OK) {
|
|
518
|
678 return NGX_ERROR;
|
|
|
679 }
|
|
|
680
|
|
|
681 if (u->create_key(r) != NGX_OK) {
|
|
|
682 return NGX_ERROR;
|
|
|
683 }
|
|
|
684
|
|
|
685 /* TODO: add keys */
|
|
|
686
|
|
|
687 ngx_http_file_cache_create_key(r);
|
|
|
688
|
|
632
|
689 if (r->cache->header_start + 256 >= u->conf->buffer_size) {
|
|
630
|
690 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
632
|
691 "%V_buffer_size %uz is not enough for cache key, "
|
|
|
692 "it should increased at least to %uz",
|
|
|
693 &u->conf->module, u->conf->buffer_size,
|
|
|
694 ngx_align(r->cache->header_start + 256, 1024));
|
|
630
|
695
|
|
|
696 r->cache = NULL;
|
|
|
697 return NGX_DECLINED;
|
|
|
698 }
|
|
|
699
|
|
642
|
700 u->cacheable = 1;
|
|
|
701
|
|
626
|
702 switch (ngx_http_test_predicates(r, u->conf->cache_bypass)) {
|
|
|
703
|
|
|
704 case NGX_ERROR:
|
|
|
705 return NGX_ERROR;
|
|
|
706
|
|
|
707 case NGX_DECLINED:
|
|
|
708 u->cache_status = NGX_HTTP_CACHE_BYPASS;
|
|
|
709 return NGX_DECLINED;
|
|
|
710
|
|
|
711 default: /* NGX_OK */
|
|
|
712 break;
|
|
|
713 }
|
|
|
714
|
|
588
|
715 c = r->cache;
|
|
|
716
|
|
518
|
717 c->min_uses = u->conf->cache_min_uses;
|
|
|
718 c->body_start = u->conf->buffer_size;
|
|
|
719 c->file_cache = u->conf->cache->data;
|
|
|
720
|
|
656
|
721 c->lock = u->conf->cache_lock;
|
|
|
722 c->lock_timeout = u->conf->cache_lock_timeout;
|
|
|
723
|
|
518
|
724 u->cache_status = NGX_HTTP_CACHE_MISS;
|
|
464
|
725 }
|
|
|
726
|
|
|
727 rc = ngx_http_file_cache_open(r);
|
|
|
728
|
|
498
|
729 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
730 "http upstream cache: %i", rc);
|
|
|
731
|
|
502
|
732 switch (rc) {
|
|
|
733
|
|
|
734 case NGX_HTTP_CACHE_UPDATING:
|
|
|
735
|
|
498
|
736 if (u->conf->cache_use_stale & NGX_HTTP_UPSTREAM_FT_UPDATING) {
|
|
502
|
737 u->cache_status = rc;
|
|
498
|
738 rc = NGX_OK;
|
|
|
739
|
|
|
740 } else {
|
|
|
741 rc = NGX_HTTP_CACHE_STALE;
|
|
|
742 }
|
|
502
|
743
|
|
|
744 break;
|
|
|
745
|
|
|
746 case NGX_OK:
|
|
|
747 u->cache_status = NGX_HTTP_CACHE_HIT;
|
|
498
|
748 }
|
|
464
|
749
|
|
502
|
750 switch (rc) {
|
|
|
751
|
|
|
752 case NGX_OK:
|
|
464
|
753
|
|
|
754 rc = ngx_http_upstream_cache_send(r, u);
|
|
|
755
|
|
|
756 if (rc != NGX_HTTP_UPSTREAM_INVALID_HEADER) {
|
|
|
757 return rc;
|
|
|
758 }
|
|
|
759
|
|
502
|
760 break;
|
|
|
761
|
|
|
762 case NGX_HTTP_CACHE_STALE:
|
|
464
|
763
|
|
472
|
764 c->valid_sec = 0;
|
|
464
|
765 u->buffer.start = NULL;
|
|
502
|
766 u->cache_status = NGX_HTTP_CACHE_EXPIRED;
|
|
|
767
|
|
|
768 break;
|
|
|
769
|
|
|
770 case NGX_DECLINED:
|
|
464
|
771
|
|
|
772 if ((size_t) (u->buffer.end - u->buffer.start) < u->conf->buffer_size) {
|
|
|
773 u->buffer.start = NULL;
|
|
|
774
|
|
|
775 } else {
|
|
|
776 u->buffer.pos = u->buffer.start + c->header_start;
|
|
|
777 u->buffer.last = u->buffer.pos;
|
|
|
778 }
|
|
|
779
|
|
502
|
780 break;
|
|
|
781
|
|
518
|
782 case NGX_HTTP_CACHE_SCARCE:
|
|
464
|
783
|
|
|
784 u->cacheable = 0;
|
|
|
785
|
|
502
|
786 break;
|
|
|
787
|
|
518
|
788 case NGX_AGAIN:
|
|
|
789
|
|
|
790 return NGX_BUSY;
|
|
|
791
|
|
|
792 case NGX_ERROR:
|
|
|
793
|
|
|
794 return NGX_ERROR;
|
|
|
795
|
|
502
|
796 default:
|
|
464
|
797
|
|
|
798 /* cached NGX_HTTP_BAD_GATEWAY, NGX_HTTP_GATEWAY_TIME_OUT, etc. */
|
|
|
799
|
|
502
|
800 u->cache_status = NGX_HTTP_CACHE_HIT;
|
|
|
801
|
|
464
|
802 return rc;
|
|
|
803 }
|
|
|
804
|
|
|
805 r->cached = 0;
|
|
|
806
|
|
|
807 return NGX_DECLINED;
|
|
|
808 }
|
|
|
809
|
|
|
810
|
|
|
811 static ngx_int_t
|
|
|
812 ngx_http_upstream_cache_send(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
|
813 {
|
|
|
814 ngx_int_t rc;
|
|
|
815 ngx_http_cache_t *c;
|
|
|
816
|
|
502
|
817 r->cached = 1;
|
|
464
|
818 c = r->cache;
|
|
|
819
|
|
554
|
820 if (c->header_start == c->body_start) {
|
|
|
821 r->http_version = NGX_HTTP_VERSION_9;
|
|
|
822 return ngx_http_cache_send(r);
|
|
|
823 }
|
|
|
824
|
|
464
|
825 /* TODO: cache stack */
|
|
|
826
|
|
|
827 u->buffer = *c->buf;
|
|
|
828 u->buffer.pos += c->header_start;
|
|
|
829
|
|
|
830 ngx_memzero(&u->headers_in, sizeof(ngx_http_upstream_headers_in_t));
|
|
640
|
831 u->headers_in.content_length_n = -1;
|
|
464
|
832
|
|
|
833 if (ngx_list_init(&u->headers_in.headers, r->pool, 8,
|
|
|
834 sizeof(ngx_table_elt_t))
|
|
|
835 != NGX_OK)
|
|
|
836 {
|
|
|
837 return NGX_ERROR;
|
|
|
838 }
|
|
|
839
|
|
|
840 rc = u->process_header(r);
|
|
|
841
|
|
|
842 if (rc == NGX_OK) {
|
|
|
843
|
|
|
844 if (ngx_http_upstream_process_headers(r, u) != NGX_OK) {
|
|
|
845 return NGX_DONE;
|
|
|
846 }
|
|
|
847
|
|
|
848 return ngx_http_cache_send(r);
|
|
|
849 }
|
|
|
850
|
|
|
851 if (rc == NGX_ERROR) {
|
|
|
852 return NGX_ERROR;
|
|
|
853 }
|
|
|
854
|
|
|
855 /* rc == NGX_HTTP_UPSTREAM_INVALID_HEADER */
|
|
|
856
|
|
|
857 /* TODO: delete file */
|
|
|
858
|
|
|
859 return rc;
|
|
|
860 }
|
|
|
861
|
|
|
862 #endif
|
|
|
863
|
|
|
864
|
|
36
|
865 static void
|
|
348
|
866 ngx_http_upstream_resolve_handler(ngx_resolver_ctx_t *ctx)
|
|
|
867 {
|
|
|
868 ngx_http_request_t *r;
|
|
530
|
869 ngx_http_upstream_t *u;
|
|
348
|
870 ngx_http_upstream_resolved_t *ur;
|
|
|
871
|
|
|
872 r = ctx->data;
|
|
|
873
|
|
530
|
874 u = r->upstream;
|
|
|
875 ur = u->resolved;
|
|
348
|
876
|
|
|
877 if (ctx->state) {
|
|
|
878 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
879 "%V could not be resolved (%i: %s)",
|
|
|
880 &ctx->name, ctx->state,
|
|
|
881 ngx_resolver_strerror(ctx->state));
|
|
|
882
|
|
530
|
883 ngx_http_upstream_finalize_request(r, u, NGX_HTTP_BAD_GATEWAY);
|
|
348
|
884 return;
|
|
|
885 }
|
|
|
886
|
|
|
887 ur->naddrs = ctx->naddrs;
|
|
|
888 ur->addrs = ctx->addrs;
|
|
|
889
|
|
|
890 #if (NGX_DEBUG)
|
|
|
891 {
|
|
|
892 in_addr_t addr;
|
|
|
893 ngx_uint_t i;
|
|
|
894
|
|
|
895 for (i = 0; i < ctx->naddrs; i++) {
|
|
|
896 addr = ntohl(ur->addrs[i]);
|
|
|
897
|
|
|
898 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
899 "name was resolved to %ud.%ud.%ud.%ud",
|
|
|
900 (addr >> 24) & 0xff, (addr >> 16) & 0xff,
|
|
|
901 (addr >> 8) & 0xff, addr & 0xff);
|
|
|
902 }
|
|
|
903 }
|
|
|
904 #endif
|
|
|
905
|
|
|
906 if (ngx_http_upstream_create_round_robin_peer(r, ur) != NGX_OK) {
|
|
530
|
907 ngx_http_upstream_finalize_request(r, u,
|
|
|
908 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
348
|
909 return;
|
|
|
910 }
|
|
|
911
|
|
|
912 ngx_resolve_name_done(ctx);
|
|
530
|
913 ur->ctx = NULL;
|
|
|
914
|
|
|
915 ngx_http_upstream_connect(r, u);
|
|
348
|
916 }
|
|
|
917
|
|
|
918
|
|
|
919 static void
|
|
426
|
920 ngx_http_upstream_handler(ngx_event_t *ev)
|
|
|
921 {
|
|
|
922 ngx_connection_t *c;
|
|
|
923 ngx_http_request_t *r;
|
|
|
924 ngx_http_log_ctx_t *ctx;
|
|
|
925 ngx_http_upstream_t *u;
|
|
|
926
|
|
|
927 c = ev->data;
|
|
|
928 r = c->data;
|
|
|
929
|
|
|
930 u = r->upstream;
|
|
|
931 c = r->connection;
|
|
|
932
|
|
|
933 ctx = c->log->data;
|
|
|
934 ctx->current_request = r;
|
|
|
935
|
|
|
936 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
937 "http upstream request: \"%V?%V\"", &r->uri, &r->args);
|
|
|
938
|
|
|
939 if (ev->write) {
|
|
430
|
940 u->write_event_handler(r, u);
|
|
426
|
941
|
|
|
942 } else {
|
|
430
|
943 u->read_event_handler(r, u);
|
|
426
|
944 }
|
|
|
945
|
|
|
946 ngx_http_run_posted_requests(c);
|
|
|
947 }
|
|
|
948
|
|
|
949
|
|
|
950 static void
|
|
58
|
951 ngx_http_upstream_rd_check_broken_connection(ngx_http_request_t *r)
|
|
|
952 {
|
|
|
953 ngx_http_upstream_check_broken_connection(r, r->connection->read);
|
|
|
954 }
|
|
|
955
|
|
|
956
|
|
|
957 static void
|
|
|
958 ngx_http_upstream_wr_check_broken_connection(ngx_http_request_t *r)
|
|
|
959 {
|
|
|
960 ngx_http_upstream_check_broken_connection(r, r->connection->write);
|
|
|
961 }
|
|
|
962
|
|
|
963
|
|
|
964 static void
|
|
|
965 ngx_http_upstream_check_broken_connection(ngx_http_request_t *r,
|
|
|
966 ngx_event_t *ev)
|
|
28
|
967 {
|
|
|
968 int n;
|
|
|
969 char buf[1];
|
|
126
|
970 ngx_err_t err;
|
|
486
|
971 ngx_int_t event;
|
|
28
|
972 ngx_connection_t *c;
|
|
|
973 ngx_http_upstream_t *u;
|
|
|
974
|
|
76
|
975 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, ev->log, 0,
|
|
|
976 "http upstream check client, write event:%d, \"%V\"",
|
|
|
977 ev->write, &r->uri);
|
|
28
|
978
|
|
58
|
979 c = r->connection;
|
|
32
|
980 u = r->upstream;
|
|
|
981
|
|
132
|
982 if (c->error) {
|
|
486
|
983 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && ev->active) {
|
|
|
984
|
|
|
985 event = ev->write ? NGX_WRITE_EVENT : NGX_READ_EVENT;
|
|
|
986
|
|
|
987 if (ngx_del_event(ev, event, 0) != NGX_OK) {
|
|
|
988 ngx_http_upstream_finalize_request(r, u,
|
|
|
989 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
990 return;
|
|
|
991 }
|
|
|
992 }
|
|
|
993
|
|
482
|
994 if (!u->cacheable) {
|
|
|
995 ngx_http_upstream_finalize_request(r, u,
|
|
|
996 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
997 }
|
|
486
|
998
|
|
76
|
999 return;
|
|
|
1000 }
|
|
|
1001
|
|
28
|
1002 #if (NGX_HAVE_KQUEUE)
|
|
|
1003
|
|
|
1004 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
|
1005
|
|
|
1006 if (!ev->pending_eof) {
|
|
|
1007 return;
|
|
|
1008 }
|
|
|
1009
|
|
|
1010 ev->eof = 1;
|
|
132
|
1011 c->error = 1;
|
|
28
|
1012
|
|
|
1013 if (ev->kq_errno) {
|
|
|
1014 ev->error = 1;
|
|
|
1015 }
|
|
|
1016
|
|
482
|
1017 if (!u->cacheable && u->peer.connection) {
|
|
28
|
1018 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno,
|
|
644
|
1019 "kevent() reported that client prematurely closed "
|
|
76
|
1020 "connection, so upstream connection is closed too");
|
|
28
|
1021 ngx_http_upstream_finalize_request(r, u,
|
|
|
1022 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
1023 return;
|
|
|
1024 }
|
|
|
1025
|
|
|
1026 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno,
|
|
644
|
1027 "kevent() reported that client prematurely closed "
|
|
|
1028 "connection");
|
|
28
|
1029
|
|
|
1030 if (u->peer.connection == NULL) {
|
|
|
1031 ngx_http_upstream_finalize_request(r, u,
|
|
|
1032 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
1033 }
|
|
|
1034
|
|
|
1035 return;
|
|
|
1036 }
|
|
|
1037
|
|
|
1038 #endif
|
|
|
1039
|
|
|
1040 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
|
1041
|
|
|
1042 err = ngx_socket_errno;
|
|
|
1043
|
|
286
|
1044 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ev->log, err,
|
|
|
1045 "http upstream recv(): %d", n);
|
|
|
1046
|
|
28
|
1047 if (ev->write && (n >= 0 || err == NGX_EAGAIN)) {
|
|
|
1048 return;
|
|
|
1049 }
|
|
|
1050
|
|
|
1051 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && ev->active) {
|
|
486
|
1052
|
|
|
1053 event = ev->write ? NGX_WRITE_EVENT : NGX_READ_EVENT;
|
|
|
1054
|
|
|
1055 if (ngx_del_event(ev, event, 0) != NGX_OK) {
|
|
28
|
1056 ngx_http_upstream_finalize_request(r, u,
|
|
|
1057 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1058 return;
|
|
|
1059 }
|
|
|
1060 }
|
|
|
1061
|
|
|
1062 if (n > 0) {
|
|
|
1063 return;
|
|
|
1064 }
|
|
|
1065
|
|
|
1066 if (n == -1) {
|
|
|
1067 if (err == NGX_EAGAIN) {
|
|
|
1068 return;
|
|
|
1069 }
|
|
|
1070
|
|
|
1071 ev->error = 1;
|
|
|
1072
|
|
32
|
1073 } else { /* n == 0 */
|
|
28
|
1074 err = 0;
|
|
|
1075 }
|
|
|
1076
|
|
78
|
1077 ev->eof = 1;
|
|
132
|
1078 c->error = 1;
|
|
78
|
1079
|
|
482
|
1080 if (!u->cacheable && u->peer.connection) {
|
|
28
|
1081 ngx_log_error(NGX_LOG_INFO, ev->log, err,
|
|
644
|
1082 "client prematurely closed connection, "
|
|
28
|
1083 "so upstream connection is closed too");
|
|
|
1084 ngx_http_upstream_finalize_request(r, u,
|
|
|
1085 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
1086 return;
|
|
|
1087 }
|
|
|
1088
|
|
|
1089 ngx_log_error(NGX_LOG_INFO, ev->log, err,
|
|
644
|
1090 "client prematurely closed connection");
|
|
28
|
1091
|
|
|
1092 if (u->peer.connection == NULL) {
|
|
|
1093 ngx_http_upstream_finalize_request(r, u,
|
|
|
1094 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
1095 }
|
|
|
1096 }
|
|
|
1097
|
|
|
1098
|
|
36
|
1099 static void
|
|
|
1100 ngx_http_upstream_connect(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
28
|
1101 {
|
|
140
|
1102 ngx_int_t rc;
|
|
214
|
1103 ngx_time_t *tp;
|
|
140
|
1104 ngx_connection_t *c;
|
|
28
|
1105
|
|
32
|
1106 r->connection->log->action = "connecting to upstream";
|
|
28
|
1107
|
|
|
1108 r->connection->single_connection = 0;
|
|
|
1109
|
|
262
|
1110 if (u->state && u->state->response_sec) {
|
|
214
|
1111 tp = ngx_timeofday();
|
|
262
|
1112 u->state->response_sec = tp->sec - u->state->response_sec;
|
|
|
1113 u->state->response_msec = tp->msec - u->state->response_msec;
|
|
214
|
1114 }
|
|
|
1115
|
|
296
|
1116 u->state = ngx_array_push(r->upstream_states);
|
|
214
|
1117 if (u->state == NULL) {
|
|
|
1118 ngx_http_upstream_finalize_request(r, u,
|
|
|
1119 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1120 return;
|
|
|
1121 }
|
|
|
1122
|
|
|
1123 ngx_memzero(u->state, sizeof(ngx_http_upstream_state_t));
|
|
|
1124
|
|
|
1125 tp = ngx_timeofday();
|
|
262
|
1126 u->state->response_sec = tp->sec;
|
|
|
1127 u->state->response_msec = tp->msec;
|
|
214
|
1128
|
|
28
|
1129 rc = ngx_event_connect_peer(&u->peer);
|
|
|
1130
|
|
|
1131 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1132 "http upstream connect: %i", rc);
|
|
|
1133
|
|
|
1134 if (rc == NGX_ERROR) {
|
|
|
1135 ngx_http_upstream_finalize_request(r, u,
|
|
|
1136 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1137 return;
|
|
|
1138 }
|
|
|
1139
|
|
356
|
1140 u->state->peer = u->peer.name;
|
|
|
1141
|
|
92
|
1142 if (rc == NGX_BUSY) {
|
|
|
1143 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "no live upstreams");
|
|
326
|
1144 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_NOLIVE);
|
|
|
1145 return;
|
|
92
|
1146 }
|
|
|
1147
|
|
326
|
1148 if (rc == NGX_DECLINED) {
|
|
28
|
1149 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
|
1150 return;
|
|
|
1151 }
|
|
|
1152
|
|
126
|
1153 /* rc == NGX_OK || rc == NGX_AGAIN */
|
|
|
1154
|
|
28
|
1155 c = u->peer.connection;
|
|
|
1156
|
|
|
1157 c->data = r;
|
|
140
|
1158
|
|
426
|
1159 c->write->handler = ngx_http_upstream_handler;
|
|
|
1160 c->read->handler = ngx_http_upstream_handler;
|
|
|
1161
|
|
|
1162 u->write_event_handler = ngx_http_upstream_send_request_handler;
|
|
|
1163 u->read_event_handler = ngx_http_upstream_process_header;
|
|
28
|
1164
|
|
326
|
1165 c->sendfile &= r->connection->sendfile;
|
|
372
|
1166 u->output.sendfile = c->sendfile;
|
|
28
|
1167
|
|
640
|
1168 if (c->pool == NULL) {
|
|
|
1169
|
|
|
1170 /* we need separate pool here to be able to cache SSL connections */
|
|
|
1171
|
|
|
1172 c->pool = ngx_create_pool(128, r->connection->log);
|
|
|
1173 if (c->pool == NULL) {
|
|
|
1174 ngx_http_upstream_finalize_request(r, u,
|
|
|
1175 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1176 return;
|
|
|
1177 }
|
|
|
1178 }
|
|
|
1179
|
|
492
|
1180 c->log = r->connection->log;
|
|
640
|
1181 c->pool->log = c->log;
|
|
492
|
1182 c->read->log = c->log;
|
|
|
1183 c->write->log = c->log;
|
|
28
|
1184
|
|
|
1185 /* init or reinit the ngx_output_chain() and ngx_chain_writer() contexts */
|
|
|
1186
|
|
|
1187 u->writer.out = NULL;
|
|
|
1188 u->writer.last = &u->writer.out;
|
|
|
1189 u->writer.connection = c;
|
|
|
1190 u->writer.limit = 0;
|
|
|
1191
|
|
|
1192 if (u->request_sent) {
|
|
58
|
1193 if (ngx_http_upstream_reinit(r, u) != NGX_OK) {
|
|
|
1194 ngx_http_upstream_finalize_request(r, u,
|
|
|
1195 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1196 return;
|
|
|
1197 }
|
|
28
|
1198 }
|
|
|
1199
|
|
276
|
1200 if (r->request_body
|
|
|
1201 && r->request_body->buf
|
|
|
1202 && r->request_body->temp_file
|
|
|
1203 && r == r->main)
|
|
|
1204 {
|
|
122
|
1205 /*
|
|
|
1206 * the r->request_body->buf can be reused for one request only,
|
|
670
|
1207 * the subrequests should allocate their own temporary bufs
|
|
122
|
1208 */
|
|
|
1209
|
|
|
1210 u->output.free = ngx_alloc_chain_link(r->pool);
|
|
|
1211 if (u->output.free == NULL) {
|
|
|
1212 ngx_http_upstream_finalize_request(r, u,
|
|
|
1213 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1214 return;
|
|
28
|
1215 }
|
|
122
|
1216
|
|
|
1217 u->output.free->buf = r->request_body->buf;
|
|
|
1218 u->output.free->next = NULL;
|
|
|
1219 u->output.allocated = 1;
|
|
|
1220
|
|
|
1221 r->request_body->buf->pos = r->request_body->buf->start;
|
|
|
1222 r->request_body->buf->last = r->request_body->buf->start;
|
|
|
1223 r->request_body->buf->tag = u->output.tag;
|
|
28
|
1224 }
|
|
|
1225
|
|
|
1226 u->request_sent = 0;
|
|
|
1227
|
|
|
1228 if (rc == NGX_AGAIN) {
|
|
|
1229 ngx_add_timer(c->write, u->conf->connect_timeout);
|
|
|
1230 return;
|
|
|
1231 }
|
|
|
1232
|
|
126
|
1233 #if (NGX_HTTP_SSL)
|
|
|
1234
|
|
348
|
1235 if (u->ssl && c->ssl == NULL) {
|
|
140
|
1236 ngx_http_upstream_ssl_init_connection(r, u, c);
|
|
126
|
1237 return;
|
|
|
1238 }
|
|
|
1239
|
|
|
1240 #endif
|
|
|
1241
|
|
28
|
1242 ngx_http_upstream_send_request(r, u);
|
|
|
1243 }
|
|
|
1244
|
|
|
1245
|
|
126
|
1246 #if (NGX_HTTP_SSL)
|
|
|
1247
|
|
|
1248 static void
|
|
140
|
1249 ngx_http_upstream_ssl_init_connection(ngx_http_request_t *r,
|
|
|
1250 ngx_http_upstream_t *u, ngx_connection_t *c)
|
|
|
1251 {
|
|
260
|
1252 ngx_int_t rc;
|
|
140
|
1253
|
|
|
1254 if (ngx_ssl_create_connection(u->conf->ssl, c,
|
|
|
1255 NGX_SSL_BUFFER|NGX_SSL_CLIENT)
|
|
454
|
1256 != NGX_OK)
|
|
140
|
1257 {
|
|
|
1258 ngx_http_upstream_finalize_request(r, u,
|
|
|
1259 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1260 return;
|
|
|
1261 }
|
|
|
1262
|
|
|
1263 c->sendfile = 0;
|
|
168
|
1264 u->output.sendfile = 0;
|
|
140
|
1265
|
|
398
|
1266 if (u->conf->ssl_session_reuse) {
|
|
|
1267 if (u->peer.set_session(&u->peer, u->peer.data) != NGX_OK) {
|
|
|
1268 ngx_http_upstream_finalize_request(r, u,
|
|
|
1269 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1270 return;
|
|
|
1271 }
|
|
140
|
1272 }
|
|
|
1273
|
|
190
|
1274 r->connection->log->action = "SSL handshaking to upstream";
|
|
|
1275
|
|
140
|
1276 rc = ngx_ssl_handshake(c);
|
|
|
1277
|
|
|
1278 if (rc == NGX_AGAIN) {
|
|
|
1279 c->ssl->handler = ngx_http_upstream_ssl_handshake;
|
|
|
1280 return;
|
|
|
1281 }
|
|
|
1282
|
|
|
1283 ngx_http_upstream_ssl_handshake(c);
|
|
|
1284 }
|
|
|
1285
|
|
|
1286
|
|
|
1287 static void
|
|
126
|
1288 ngx_http_upstream_ssl_handshake(ngx_connection_t *c)
|
|
|
1289 {
|
|
|
1290 ngx_http_request_t *r;
|
|
|
1291 ngx_http_upstream_t *u;
|
|
|
1292
|
|
|
1293 r = c->data;
|
|
|
1294 u = r->upstream;
|
|
|
1295
|
|
|
1296 if (c->ssl->handshaked) {
|
|
|
1297
|
|
398
|
1298 if (u->conf->ssl_session_reuse) {
|
|
|
1299 u->peer.save_session(&u->peer, u->peer.data);
|
|
|
1300 }
|
|
260
|
1301
|
|
426
|
1302 c->write->handler = ngx_http_upstream_handler;
|
|
|
1303 c->read->handler = ngx_http_upstream_handler;
|
|
126
|
1304
|
|
|
1305 ngx_http_upstream_send_request(r, u);
|
|
|
1306
|
|
|
1307 return;
|
|
|
1308 }
|
|
|
1309
|
|
|
1310 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
|
1311
|
|
|
1312 }
|
|
|
1313
|
|
|
1314 #endif
|
|
|
1315
|
|
|
1316
|
|
58
|
1317 static ngx_int_t
|
|
36
|
1318 ngx_http_upstream_reinit(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
28
|
1319 {
|
|
|
1320 ngx_chain_t *cl;
|
|
|
1321
|
|
58
|
1322 if (u->reinit_request(r) != NGX_OK) {
|
|
|
1323 return NGX_ERROR;
|
|
|
1324 }
|
|
|
1325
|
|
640
|
1326 u->keepalive = 0;
|
|
|
1327
|
|
356
|
1328 ngx_memzero(&u->headers_in, sizeof(ngx_http_upstream_headers_in_t));
|
|
640
|
1329 u->headers_in.content_length_n = -1;
|
|
356
|
1330
|
|
|
1331 if (ngx_list_init(&u->headers_in.headers, r->pool, 8,
|
|
140
|
1332 sizeof(ngx_table_elt_t))
|
|
|
1333 != NGX_OK)
|
|
58
|
1334 {
|
|
|
1335 return NGX_ERROR;
|
|
28
|
1336 }
|
|
|
1337
|
|
|
1338 /* reinit the request chain */
|
|
126
|
1339
|
|
58
|
1340 for (cl = u->request_bufs; cl; cl = cl->next) {
|
|
28
|
1341 cl->buf->pos = cl->buf->start;
|
|
|
1342 cl->buf->file_pos = 0;
|
|
|
1343 }
|
|
|
1344
|
|
58
|
1345 /* reinit the subrequest's ngx_output_chain() context */
|
|
|
1346
|
|
122
|
1347 if (r->request_body && r->request_body->temp_file
|
|
146
|
1348 && r != r->main && u->output.buf)
|
|
122
|
1349 {
|
|
|
1350 u->output.free = ngx_alloc_chain_link(r->pool);
|
|
|
1351 if (u->output.free == NULL) {
|
|
|
1352 return NGX_ERROR;
|
|
58
|
1353 }
|
|
122
|
1354
|
|
|
1355 u->output.free->buf = u->output.buf;
|
|
|
1356 u->output.free->next = NULL;
|
|
|
1357
|
|
|
1358 u->output.buf->pos = u->output.buf->start;
|
|
|
1359 u->output.buf->last = u->output.buf->start;
|
|
58
|
1360 }
|
|
28
|
1361
|
|
|
1362 u->output.buf = NULL;
|
|
|
1363 u->output.in = NULL;
|
|
|
1364 u->output.busy = NULL;
|
|
126
|
1365
|
|
130
|
1366 /* reinit u->buffer */
|
|
126
|
1367
|
|
464
|
1368 u->buffer.pos = u->buffer.start;
|
|
|
1369
|
|
|
1370 #if (NGX_HTTP_CACHE)
|
|
|
1371
|
|
|
1372 if (r->cache) {
|
|
|
1373 u->buffer.pos += r->cache->header_start;
|
|
28
|
1374 }
|
|
58
|
1375
|
|
28
|
1376 #endif
|
|
|
1377
|
|
464
|
1378 u->buffer.last = u->buffer.pos;
|
|
|
1379
|
|
58
|
1380 return NGX_OK;
|
|
28
|
1381 }
|
|
|
1382
|
|
|
1383
|
|
36
|
1384 static void
|
|
|
1385 ngx_http_upstream_send_request(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
28
|
1386 {
|
|
294
|
1387 ngx_int_t rc;
|
|
32
|
1388 ngx_connection_t *c;
|
|
126
|
1389
|
|
28
|
1390 c = u->peer.connection;
|
|
|
1391
|
|
|
1392 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1393 "http upstream send request");
|
|
|
1394
|
|
294
|
1395 if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) {
|
|
296
|
1396 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
294
|
1397 return;
|
|
28
|
1398 }
|
|
|
1399
|
|
32
|
1400 c->log->action = "sending request to upstream";
|
|
28
|
1401
|
|
58
|
1402 rc = ngx_output_chain(&u->output, u->request_sent ? NULL : u->request_bufs);
|
|
28
|
1403
|
|
|
1404 u->request_sent = 1;
|
|
|
1405
|
|
|
1406 if (rc == NGX_ERROR) {
|
|
|
1407 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
|
1408 return;
|
|
|
1409 }
|
|
|
1410
|
|
|
1411 if (c->write->timer_set) {
|
|
|
1412 ngx_del_timer(c->write);
|
|
|
1413 }
|
|
|
1414
|
|
|
1415 if (rc == NGX_AGAIN) {
|
|
|
1416 ngx_add_timer(c->write, u->conf->send_timeout);
|
|
|
1417
|
|
430
|
1418 if (ngx_handle_write_event(c->write, u->conf->send_lowat) != NGX_OK) {
|
|
28
|
1419 ngx_http_upstream_finalize_request(r, u,
|
|
|
1420 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1421 return;
|
|
|
1422 }
|
|
|
1423
|
|
|
1424 return;
|
|
|
1425 }
|
|
|
1426
|
|
|
1427 /* rc == NGX_OK */
|
|
|
1428
|
|
|
1429 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
|
1430 if (ngx_tcp_push(c->fd) == NGX_ERROR) {
|
|
|
1431 ngx_log_error(NGX_LOG_CRIT, c->log, ngx_socket_errno,
|
|
|
1432 ngx_tcp_push_n " failed");
|
|
|
1433 ngx_http_upstream_finalize_request(r, u,
|
|
|
1434 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
126
|
1435 return;
|
|
28
|
1436 }
|
|
|
1437
|
|
|
1438 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
|
1439 }
|
|
126
|
1440
|
|
28
|
1441 ngx_add_timer(c->read, u->conf->read_timeout);
|
|
|
1442
|
|
|
1443 #if 1
|
|
|
1444 if (c->read->ready) {
|
|
126
|
1445
|
|
28
|
1446 /* post aio operation */
|
|
|
1447
|
|
|
1448 /*
|
|
|
1449 * TODO comment
|
|
|
1450 * although we can post aio operation just in the end
|
|
|
1451 * of ngx_http_upstream_connect() CHECK IT !!!
|
|
|
1452 * it's better to do here because we postpone header buffer allocation
|
|
|
1453 */
|
|
|
1454
|
|
430
|
1455 ngx_http_upstream_process_header(r, u);
|
|
28
|
1456 return;
|
|
|
1457 }
|
|
|
1458 #endif
|
|
|
1459
|
|
426
|
1460 u->write_event_handler = ngx_http_upstream_dummy_handler;
|
|
28
|
1461
|
|
430
|
1462 if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
|
|
28
|
1463 ngx_http_upstream_finalize_request(r, u,
|
|
|
1464 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1465 return;
|
|
|
1466 }
|
|
|
1467 }
|
|
|
1468
|
|
|
1469
|
|
36
|
1470 static void
|
|
430
|
1471 ngx_http_upstream_send_request_handler(ngx_http_request_t *r,
|
|
|
1472 ngx_http_upstream_t *u)
|
|
28
|
1473 {
|
|
430
|
1474 ngx_connection_t *c;
|
|
|
1475
|
|
|
1476 c = u->peer.connection;
|
|
|
1477
|
|
|
1478 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
28
|
1479 "http upstream send request handler");
|
|
|
1480
|
|
430
|
1481 if (c->write->timedout) {
|
|
28
|
1482 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT);
|
|
|
1483 return;
|
|
|
1484 }
|
|
|
1485
|
|
140
|
1486 #if (NGX_HTTP_SSL)
|
|
|
1487
|
|
348
|
1488 if (u->ssl && c->ssl == NULL) {
|
|
140
|
1489 ngx_http_upstream_ssl_init_connection(r, u, c);
|
|
|
1490 return;
|
|
|
1491 }
|
|
|
1492
|
|
|
1493 #endif
|
|
|
1494
|
|
200
|
1495 if (u->header_sent) {
|
|
426
|
1496 u->write_event_handler = ngx_http_upstream_dummy_handler;
|
|
200
|
1497
|
|
430
|
1498 (void) ngx_handle_write_event(c->write, 0);
|
|
200
|
1499
|
|
|
1500 return;
|
|
|
1501 }
|
|
|
1502
|
|
28
|
1503 ngx_http_upstream_send_request(r, u);
|
|
|
1504 }
|
|
|
1505
|
|
|
1506
|
|
36
|
1507 static void
|
|
430
|
1508 ngx_http_upstream_process_header(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
28
|
1509 {
|
|
464
|
1510 ssize_t n;
|
|
|
1511 ngx_int_t rc;
|
|
|
1512 ngx_connection_t *c;
|
|
28
|
1513
|
|
430
|
1514 c = u->peer.connection;
|
|
|
1515
|
|
|
1516 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
32
|
1517 "http upstream process header");
|
|
28
|
1518
|
|
32
|
1519 c->log->action = "reading response header from upstream";
|
|
28
|
1520
|
|
430
|
1521 if (c->read->timedout) {
|
|
28
|
1522 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT);
|
|
|
1523 return;
|
|
|
1524 }
|
|
126
|
1525
|
|
294
|
1526 if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) {
|
|
296
|
1527 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
294
|
1528 return;
|
|
|
1529 }
|
|
|
1530
|
|
130
|
1531 if (u->buffer.start == NULL) {
|
|
|
1532 u->buffer.start = ngx_palloc(r->pool, u->conf->buffer_size);
|
|
|
1533 if (u->buffer.start == NULL) {
|
|
28
|
1534 ngx_http_upstream_finalize_request(r, u,
|
|
|
1535 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1536 return;
|
|
|
1537 }
|
|
|
1538
|
|
130
|
1539 u->buffer.pos = u->buffer.start;
|
|
|
1540 u->buffer.last = u->buffer.start;
|
|
|
1541 u->buffer.end = u->buffer.start + u->conf->buffer_size;
|
|
|
1542 u->buffer.temporary = 1;
|
|
|
1543
|
|
|
1544 u->buffer.tag = u->output.tag;
|
|
28
|
1545
|
|
356
|
1546 if (ngx_list_init(&u->headers_in.headers, r->pool, 8,
|
|
130
|
1547 sizeof(ngx_table_elt_t))
|
|
|
1548 != NGX_OK)
|
|
58
|
1549 {
|
|
|
1550 ngx_http_upstream_finalize_request(r, u,
|
|
|
1551 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1552 return;
|
|
|
1553 }
|
|
|
1554
|
|
464
|
1555 #if (NGX_HTTP_CACHE)
|
|
|
1556
|
|
|
1557 if (r->cache) {
|
|
|
1558 u->buffer.pos += r->cache->header_start;
|
|
130
|
1559 u->buffer.last = u->buffer.pos;
|
|
28
|
1560 }
|
|
|
1561 #endif
|
|
|
1562 }
|
|
|
1563
|
|
424
|
1564 for ( ;; ) {
|
|
|
1565
|
|
|
1566 n = c->recv(c, u->buffer.last, u->buffer.end - u->buffer.last);
|
|
|
1567
|
|
|
1568 if (n == NGX_AGAIN) {
|
|
28
|
1569 #if 0
|
|
424
|
1570 ngx_add_timer(rev, u->read_timeout);
|
|
28
|
1571 #endif
|
|
|
1572
|
|
430
|
1573 if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
424
|
1574 ngx_http_upstream_finalize_request(r, u,
|
|
28
|
1575 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
424
|
1576 return;
|
|
|
1577 }
|
|
|
1578
|
|
|
1579 return;
|
|
|
1580 }
|
|
|
1581
|
|
|
1582 if (n == 0) {
|
|
430
|
1583 ngx_log_error(NGX_LOG_ERR, c->log, 0,
|
|
424
|
1584 "upstream prematurely closed connection");
|
|
|
1585 }
|
|
|
1586
|
|
|
1587 if (n == NGX_ERROR || n == 0) {
|
|
|
1588 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
28
|
1589 return;
|
|
|
1590 }
|
|
|
1591
|
|
424
|
1592 u->buffer.last += n;
|
|
28
|
1593
|
|
|
1594 #if 0
|
|
424
|
1595 u->valid_header_in = 0;
|
|
|
1596
|
|
|
1597 u->peer.cached = 0;
|
|
28
|
1598 #endif
|
|
|
1599
|
|
424
|
1600 rc = u->process_header(r);
|
|
|
1601
|
|
|
1602 if (rc == NGX_AGAIN) {
|
|
|
1603
|
|
662
|
1604 if (u->buffer.last == u->buffer.end) {
|
|
430
|
1605 ngx_log_error(NGX_LOG_ERR, c->log, 0,
|
|
424
|
1606 "upstream sent too big header");
|
|
|
1607
|
|
|
1608 ngx_http_upstream_next(r, u,
|
|
|
1609 NGX_HTTP_UPSTREAM_FT_INVALID_HEADER);
|
|
|
1610 return;
|
|
|
1611 }
|
|
|
1612
|
|
|
1613 continue;
|
|
28
|
1614 }
|
|
|
1615
|
|
424
|
1616 break;
|
|
28
|
1617 }
|
|
|
1618
|
|
|
1619 if (rc == NGX_HTTP_UPSTREAM_INVALID_HEADER) {
|
|
|
1620 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER);
|
|
|
1621 return;
|
|
|
1622 }
|
|
|
1623
|
|
356
|
1624 if (rc == NGX_ERROR) {
|
|
28
|
1625 ngx_http_upstream_finalize_request(r, u,
|
|
|
1626 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1627 return;
|
|
|
1628 }
|
|
|
1629
|
|
|
1630 /* rc == NGX_OK */
|
|
|
1631
|
|
558
|
1632 if (u->headers_in.status_n > NGX_HTTP_SPECIAL_RESPONSE) {
|
|
412
|
1633
|
|
|
1634 if (r->subrequest_in_memory) {
|
|
|
1635 u->buffer.last = u->buffer.pos;
|
|
58
|
1636 }
|
|
|
1637
|
|
412
|
1638 if (ngx_http_upstream_test_next(r, u) == NGX_OK) {
|
|
146
|
1639 return;
|
|
|
1640 }
|
|
|
1641
|
|
412
|
1642 if (ngx_http_upstream_intercept_errors(r, u) == NGX_OK) {
|
|
146
|
1643 return;
|
|
|
1644 }
|
|
58
|
1645 }
|
|
|
1646
|
|
464
|
1647 if (ngx_http_upstream_process_headers(r, u) != NGX_OK) {
|
|
64
|
1648 return;
|
|
|
1649 }
|
|
|
1650
|
|
248
|
1651 if (!r->subrequest_in_memory) {
|
|
|
1652 ngx_http_upstream_send_response(r, u);
|
|
|
1653 return;
|
|
|
1654 }
|
|
|
1655
|
|
|
1656 /* subrequest content in memory */
|
|
|
1657
|
|
|
1658 if (u->input_filter == NULL) {
|
|
|
1659 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init;
|
|
|
1660 u->input_filter = ngx_http_upstream_non_buffered_filter;
|
|
|
1661 u->input_filter_ctx = r;
|
|
|
1662 }
|
|
|
1663
|
|
|
1664 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) {
|
|
|
1665 ngx_http_upstream_finalize_request(r, u,
|
|
|
1666 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1667 return;
|
|
|
1668 }
|
|
|
1669
|
|
420
|
1670 n = u->buffer.last - u->buffer.pos;
|
|
|
1671
|
|
|
1672 if (n) {
|
|
|
1673 u->buffer.last -= n;
|
|
|
1674
|
|
430
|
1675 u->state->response_length += n;
|
|
|
1676
|
|
420
|
1677 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) {
|
|
248
|
1678 ngx_http_upstream_finalize_request(r, u, NGX_ERROR);
|
|
|
1679 return;
|
|
|
1680 }
|
|
|
1681
|
|
420
|
1682 if (u->length == 0) {
|
|
|
1683 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1684 return;
|
|
|
1685 }
|
|
248
|
1686 }
|
|
|
1687
|
|
426
|
1688 u->read_event_handler = ngx_http_upstream_process_body_in_memory;
|
|
248
|
1689
|
|
430
|
1690 ngx_http_upstream_process_body_in_memory(r, u);
|
|
248
|
1691 }
|
|
|
1692
|
|
|
1693
|
|
294
|
1694 static ngx_int_t
|
|
412
|
1695 ngx_http_upstream_test_next(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
|
1696 {
|
|
|
1697 ngx_uint_t status;
|
|
|
1698 ngx_http_upstream_next_t *un;
|
|
|
1699
|
|
|
1700 status = u->headers_in.status_n;
|
|
|
1701
|
|
|
1702 for (un = ngx_http_upstream_next_errors; un->status; un++) {
|
|
|
1703
|
|
|
1704 if (status != un->status) {
|
|
|
1705 continue;
|
|
|
1706 }
|
|
|
1707
|
|
|
1708 if (u->peer.tries > 1 && (u->conf->next_upstream & un->mask)) {
|
|
|
1709 ngx_http_upstream_next(r, u, un->mask);
|
|
|
1710 return NGX_OK;
|
|
|
1711 }
|
|
|
1712
|
|
|
1713 #if (NGX_HTTP_CACHE)
|
|
|
1714
|
|
502
|
1715 if (u->cache_status == NGX_HTTP_CACHE_EXPIRED
|
|
|
1716 && (u->conf->cache_use_stale & un->mask))
|
|
|
1717 {
|
|
488
|
1718 ngx_int_t rc;
|
|
486
|
1719
|
|
|
1720 rc = u->reinit_request(r);
|
|
|
1721
|
|
|
1722 if (rc == NGX_OK) {
|
|
502
|
1723 u->cache_status = NGX_HTTP_CACHE_STALE;
|
|
486
|
1724 rc = ngx_http_upstream_cache_send(r, u);
|
|
|
1725 }
|
|
|
1726
|
|
|
1727 ngx_http_upstream_finalize_request(r, u, rc);
|
|
412
|
1728 return NGX_OK;
|
|
|
1729 }
|
|
|
1730
|
|
|
1731 #endif
|
|
|
1732 }
|
|
|
1733
|
|
|
1734 return NGX_DECLINED;
|
|
|
1735 }
|
|
|
1736
|
|
|
1737
|
|
|
1738 static ngx_int_t
|
|
|
1739 ngx_http_upstream_intercept_errors(ngx_http_request_t *r,
|
|
|
1740 ngx_http_upstream_t *u)
|
|
|
1741 {
|
|
|
1742 ngx_int_t status;
|
|
|
1743 ngx_uint_t i;
|
|
|
1744 ngx_table_elt_t *h;
|
|
|
1745 ngx_http_err_page_t *err_page;
|
|
|
1746 ngx_http_core_loc_conf_t *clcf;
|
|
|
1747
|
|
438
|
1748 status = u->headers_in.status_n;
|
|
|
1749
|
|
|
1750 if (status == NGX_HTTP_NOT_FOUND && u->conf->intercept_404) {
|
|
|
1751 ngx_http_upstream_finalize_request(r, u, NGX_HTTP_NOT_FOUND);
|
|
|
1752 return NGX_OK;
|
|
|
1753 }
|
|
|
1754
|
|
412
|
1755 if (!u->conf->intercept_errors) {
|
|
|
1756 return NGX_DECLINED;
|
|
|
1757 }
|
|
|
1758
|
|
|
1759 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1760
|
|
|
1761 if (clcf->error_pages == NULL) {
|
|
|
1762 return NGX_DECLINED;
|
|
|
1763 }
|
|
|
1764
|
|
|
1765 err_page = clcf->error_pages->elts;
|
|
|
1766 for (i = 0; i < clcf->error_pages->nelts; i++) {
|
|
|
1767
|
|
|
1768 if (err_page[i].status == status) {
|
|
|
1769
|
|
502
|
1770 if (status == NGX_HTTP_UNAUTHORIZED
|
|
|
1771 && u->headers_in.www_authenticate)
|
|
|
1772 {
|
|
412
|
1773 h = ngx_list_push(&r->headers_out.headers);
|
|
|
1774
|
|
|
1775 if (h == NULL) {
|
|
|
1776 ngx_http_upstream_finalize_request(r, u,
|
|
|
1777 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1778 return NGX_OK;
|
|
|
1779 }
|
|
|
1780
|
|
|
1781 *h = *u->headers_in.www_authenticate;
|
|
|
1782
|
|
|
1783 r->headers_out.www_authenticate = h;
|
|
|
1784 }
|
|
|
1785
|
|
590
|
1786 #if (NGX_HTTP_CACHE)
|
|
|
1787
|
|
|
1788 if (r->cache) {
|
|
|
1789 time_t valid;
|
|
|
1790
|
|
|
1791 valid = ngx_http_file_cache_valid(u->conf->cache_valid, status);
|
|
|
1792
|
|
|
1793 if (valid) {
|
|
|
1794 r->cache->valid_sec = ngx_time() + valid;
|
|
|
1795 r->cache->error = status;
|
|
|
1796 }
|
|
|
1797
|
|
|
1798 ngx_http_file_cache_free(r->cache, u->pipe->temp_file);
|
|
|
1799 }
|
|
|
1800 #endif
|
|
412
|
1801 ngx_http_upstream_finalize_request(r, u, status);
|
|
|
1802
|
|
|
1803 return NGX_OK;
|
|
|
1804 }
|
|
|
1805 }
|
|
|
1806
|
|
|
1807 return NGX_DECLINED;
|
|
|
1808 }
|
|
|
1809
|
|
|
1810
|
|
|
1811 static ngx_int_t
|
|
294
|
1812 ngx_http_upstream_test_connect(ngx_connection_t *c)
|
|
|
1813 {
|
|
|
1814 int err;
|
|
|
1815 socklen_t len;
|
|
|
1816
|
|
|
1817 #if (NGX_HAVE_KQUEUE)
|
|
|
1818
|
|
|
1819 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
692
|
1820 if (c->write->pending_eof || c->read->pending_eof) {
|
|
|
1821 if (c->write->pending_eof) {
|
|
|
1822 err = c->write->kq_errno;
|
|
|
1823
|
|
|
1824 } else {
|
|
|
1825 err = c->read->kq_errno;
|
|
|
1826 }
|
|
|
1827
|
|
336
|
1828 c->log->action = "connecting to upstream";
|
|
692
|
1829 (void) ngx_connection_error(c, err,
|
|
296
|
1830 "kevent() reported that connect() failed");
|
|
|
1831 return NGX_ERROR;
|
|
|
1832 }
|
|
294
|
1833
|
|
|
1834 } else
|
|
|
1835 #endif
|
|
|
1836 {
|
|
296
|
1837 err = 0;
|
|
|
1838 len = sizeof(int);
|
|
|
1839
|
|
|
1840 /*
|
|
|
1841 * BSDs and Linux return 0 and set a pending error in err
|
|
|
1842 * Solaris returns -1 and sets errno
|
|
|
1843 */
|
|
|
1844
|
|
|
1845 if (getsockopt(c->fd, SOL_SOCKET, SO_ERROR, (void *) &err, &len)
|
|
|
1846 == -1)
|
|
|
1847 {
|
|
|
1848 err = ngx_errno;
|
|
|
1849 }
|
|
|
1850
|
|
|
1851 if (err) {
|
|
336
|
1852 c->log->action = "connecting to upstream";
|
|
296
|
1853 (void) ngx_connection_error(c, err, "connect() failed");
|
|
|
1854 return NGX_ERROR;
|
|
|
1855 }
|
|
294
|
1856 }
|
|
|
1857
|
|
|
1858 return NGX_OK;
|
|
|
1859 }
|
|
|
1860
|
|
|
1861
|
|
464
|
1862 static ngx_int_t
|
|
|
1863 ngx_http_upstream_process_headers(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
|
1864 {
|
|
|
1865 ngx_str_t *uri, args;
|
|
|
1866 ngx_uint_t i, flags;
|
|
|
1867 ngx_list_part_t *part;
|
|
|
1868 ngx_table_elt_t *h;
|
|
|
1869 ngx_http_upstream_header_t *hh;
|
|
|
1870 ngx_http_upstream_main_conf_t *umcf;
|
|
|
1871
|
|
|
1872 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module);
|
|
|
1873
|
|
484
|
1874 if (u->headers_in.x_accel_redirect
|
|
|
1875 && !(u->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_XA_REDIRECT))
|
|
|
1876 {
|
|
464
|
1877 ngx_http_upstream_finalize_request(r, u, NGX_DECLINED);
|
|
|
1878
|
|
|
1879 part = &u->headers_in.headers.part;
|
|
|
1880 h = part->elts;
|
|
|
1881
|
|
|
1882 for (i = 0; /* void */; i++) {
|
|
|
1883
|
|
|
1884 if (i >= part->nelts) {
|
|
|
1885 if (part->next == NULL) {
|
|
|
1886 break;
|
|
|
1887 }
|
|
|
1888
|
|
|
1889 part = part->next;
|
|
|
1890 h = part->elts;
|
|
|
1891 i = 0;
|
|
|
1892 }
|
|
|
1893
|
|
|
1894 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash,
|
|
|
1895 h[i].lowcase_key, h[i].key.len);
|
|
|
1896
|
|
|
1897 if (hh && hh->redirect) {
|
|
|
1898 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) {
|
|
|
1899 ngx_http_finalize_request(r,
|
|
|
1900 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1901 return NGX_DONE;
|
|
|
1902 }
|
|
|
1903 }
|
|
|
1904 }
|
|
|
1905
|
|
|
1906 uri = &u->headers_in.x_accel_redirect->value;
|
|
570
|
1907 ngx_str_null(&args);
|
|
530
|
1908 flags = NGX_HTTP_LOG_UNSAFE;
|
|
464
|
1909
|
|
|
1910 if (ngx_http_parse_unsafe_uri(r, uri, &args, &flags) != NGX_OK) {
|
|
|
1911 ngx_http_finalize_request(r, NGX_HTTP_NOT_FOUND);
|
|
|
1912 return NGX_DONE;
|
|
|
1913 }
|
|
|
1914
|
|
|
1915 if (r->method != NGX_HTTP_HEAD) {
|
|
|
1916 r->method = NGX_HTTP_GET;
|
|
|
1917 }
|
|
|
1918
|
|
|
1919 ngx_http_internal_redirect(r, uri, &args);
|
|
526
|
1920 ngx_http_finalize_request(r, NGX_DONE);
|
|
464
|
1921 return NGX_DONE;
|
|
|
1922 }
|
|
|
1923
|
|
|
1924 part = &u->headers_in.headers.part;
|
|
|
1925 h = part->elts;
|
|
|
1926
|
|
|
1927 for (i = 0; /* void */; i++) {
|
|
|
1928
|
|
|
1929 if (i >= part->nelts) {
|
|
|
1930 if (part->next == NULL) {
|
|
|
1931 break;
|
|
|
1932 }
|
|
|
1933
|
|
|
1934 part = part->next;
|
|
|
1935 h = part->elts;
|
|
|
1936 i = 0;
|
|
|
1937 }
|
|
|
1938
|
|
|
1939 if (ngx_hash_find(&u->conf->hide_headers_hash, h[i].hash,
|
|
|
1940 h[i].lowcase_key, h[i].key.len))
|
|
|
1941 {
|
|
|
1942 continue;
|
|
|
1943 }
|
|
|
1944
|
|
|
1945 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash,
|
|
|
1946 h[i].lowcase_key, h[i].key.len);
|
|
|
1947
|
|
|
1948 if (hh) {
|
|
|
1949 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) {
|
|
|
1950 ngx_http_upstream_finalize_request(r, u,
|
|
|
1951 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1952 return NGX_DONE;
|
|
|
1953 }
|
|
|
1954
|
|
|
1955 continue;
|
|
|
1956 }
|
|
|
1957
|
|
|
1958 if (ngx_http_upstream_copy_header_line(r, &h[i], 0) != NGX_OK) {
|
|
|
1959 ngx_http_upstream_finalize_request(r, u,
|
|
|
1960 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1961 return NGX_DONE;
|
|
|
1962 }
|
|
|
1963 }
|
|
|
1964
|
|
|
1965 if (r->headers_out.server && r->headers_out.server->value.data == NULL) {
|
|
|
1966 r->headers_out.server->hash = 0;
|
|
|
1967 }
|
|
|
1968
|
|
|
1969 if (r->headers_out.date && r->headers_out.date->value.data == NULL) {
|
|
|
1970 r->headers_out.date->hash = 0;
|
|
|
1971 }
|
|
|
1972
|
|
|
1973 r->headers_out.status = u->headers_in.status_n;
|
|
|
1974 r->headers_out.status_line = u->headers_in.status_line;
|
|
|
1975
|
|
640
|
1976 r->headers_out.content_length_n = u->headers_in.content_length_n;
|
|
|
1977
|
|
|
1978 u->length = u->headers_in.content_length_n;
|
|
464
|
1979
|
|
|
1980 return NGX_OK;
|
|
|
1981 }
|
|
|
1982
|
|
|
1983
|
|
248
|
1984 static void
|
|
430
|
1985 ngx_http_upstream_process_body_in_memory(ngx_http_request_t *r,
|
|
|
1986 ngx_http_upstream_t *u)
|
|
248
|
1987 {
|
|
430
|
1988 size_t size;
|
|
|
1989 ssize_t n;
|
|
|
1990 ngx_buf_t *b;
|
|
|
1991 ngx_event_t *rev;
|
|
|
1992 ngx_connection_t *c;
|
|
|
1993
|
|
|
1994 c = u->peer.connection;
|
|
|
1995 rev = c->read;
|
|
248
|
1996
|
|
|
1997 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1998 "http upstream process body on memory");
|
|
|
1999
|
|
|
2000 if (rev->timedout) {
|
|
|
2001 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out");
|
|
|
2002 ngx_http_upstream_finalize_request(r, u, NGX_ETIMEDOUT);
|
|
|
2003 return;
|
|
|
2004 }
|
|
|
2005
|
|
|
2006 b = &u->buffer;
|
|
|
2007
|
|
|
2008 for ( ;; ) {
|
|
|
2009
|
|
|
2010 size = b->end - b->last;
|
|
|
2011
|
|
|
2012 if (size == 0) {
|
|
|
2013 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
|
|
590
|
2014 "upstream buffer is too small to read response");
|
|
248
|
2015 ngx_http_upstream_finalize_request(r, u, NGX_ERROR);
|
|
|
2016 return;
|
|
|
2017 }
|
|
|
2018
|
|
|
2019 n = c->recv(c, b->last, size);
|
|
|
2020
|
|
|
2021 if (n == NGX_AGAIN) {
|
|
|
2022 break;
|
|
|
2023 }
|
|
|
2024
|
|
|
2025 if (n == 0 || n == NGX_ERROR) {
|
|
|
2026 ngx_http_upstream_finalize_request(r, u, n);
|
|
|
2027 return;
|
|
|
2028 }
|
|
|
2029
|
|
430
|
2030 u->state->response_length += n;
|
|
|
2031
|
|
248
|
2032 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) {
|
|
|
2033 ngx_http_upstream_finalize_request(r, u, NGX_ERROR);
|
|
|
2034 return;
|
|
|
2035 }
|
|
|
2036
|
|
|
2037 if (!rev->ready) {
|
|
|
2038 break;
|
|
|
2039 }
|
|
|
2040 }
|
|
|
2041
|
|
640
|
2042 if (u->length == 0) {
|
|
|
2043 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2044 return;
|
|
|
2045 }
|
|
|
2046
|
|
430
|
2047 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
248
|
2048 ngx_http_upstream_finalize_request(r, u, NGX_ERROR);
|
|
|
2049 return;
|
|
|
2050 }
|
|
|
2051
|
|
|
2052 if (rev->active) {
|
|
|
2053 ngx_add_timer(rev, u->conf->read_timeout);
|
|
|
2054
|
|
|
2055 } else if (rev->timer_set) {
|
|
|
2056 ngx_del_timer(rev);
|
|
|
2057 }
|
|
230
|
2058 }
|
|
|
2059
|
|
|
2060
|
|
|
2061 static void
|
|
|
2062 ngx_http_upstream_send_response(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
|
2063 {
|
|
|
2064 int tcp_nodelay;
|
|
430
|
2065 ssize_t n;
|
|
230
|
2066 ngx_int_t rc;
|
|
|
2067 ngx_event_pipe_t *p;
|
|
|
2068 ngx_connection_t *c;
|
|
|
2069 ngx_http_core_loc_conf_t *clcf;
|
|
|
2070
|
|
58
|
2071 rc = ngx_http_send_header(r);
|
|
28
|
2072
|
|
480
|
2073 if (rc == NGX_ERROR || rc > NGX_OK || r->post_action) {
|
|
34
|
2074 ngx_http_upstream_finalize_request(r, u, rc);
|
|
28
|
2075 return;
|
|
|
2076 }
|
|
|
2077
|
|
480
|
2078 c = r->connection;
|
|
|
2079
|
|
|
2080 if (r->header_only) {
|
|
|
2081
|
|
|
2082 if (u->cacheable || u->store) {
|
|
|
2083
|
|
|
2084 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
2085 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2086 ngx_shutdown_socket_n " failed");
|
|
|
2087 }
|
|
|
2088
|
|
|
2089 r->read_event_handler = ngx_http_request_empty_handler;
|
|
|
2090 r->write_event_handler = ngx_http_request_empty_handler;
|
|
|
2091 c->error = 1;
|
|
|
2092
|
|
|
2093 } else {
|
|
|
2094 ngx_http_upstream_finalize_request(r, u, rc);
|
|
|
2095 return;
|
|
|
2096 }
|
|
|
2097 }
|
|
|
2098
|
|
28
|
2099 u->header_sent = 1;
|
|
|
2100
|
|
122
|
2101 if (r->request_body && r->request_body->temp_file) {
|
|
464
|
2102 ngx_pool_run_cleanup_file(r->pool, r->request_body->temp_file->file.fd);
|
|
|
2103 r->request_body->temp_file->file.fd = NGX_INVALID_FILE;
|
|
112
|
2104 }
|
|
|
2105
|
|
130
|
2106 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2107
|
|
198
|
2108 if (!u->buffering) {
|
|
130
|
2109
|
|
|
2110 if (u->input_filter == NULL) {
|
|
|
2111 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init;
|
|
|
2112 u->input_filter = ngx_http_upstream_non_buffered_filter;
|
|
|
2113 u->input_filter_ctx = r;
|
|
|
2114 }
|
|
|
2115
|
|
428
|
2116 u->read_event_handler = ngx_http_upstream_process_non_buffered_upstream;
|
|
130
|
2117 r->write_event_handler =
|
|
|
2118 ngx_http_upstream_process_non_buffered_downstream;
|
|
|
2119
|
|
|
2120 r->limit_rate = 0;
|
|
|
2121
|
|
|
2122 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) {
|
|
|
2123 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2124 return;
|
|
|
2125 }
|
|
|
2126
|
|
132
|
2127 if (clcf->tcp_nodelay && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET) {
|
|
|
2128 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
2129
|
|
|
2130 tcp_nodelay = 1;
|
|
|
2131
|
|
|
2132 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
|
2133 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
|
2134 {
|
|
|
2135 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2136 "setsockopt(TCP_NODELAY) failed");
|
|
|
2137 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2138 return;
|
|
|
2139 }
|
|
|
2140
|
|
|
2141 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
|
2142 }
|
|
|
2143
|
|
430
|
2144 n = u->buffer.last - u->buffer.pos;
|
|
|
2145
|
|
|
2146 if (n) {
|
|
130
|
2147 u->buffer.last = u->buffer.pos;
|
|
|
2148
|
|
430
|
2149 u->state->response_length += n;
|
|
|
2150
|
|
|
2151 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) {
|
|
130
|
2152 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2153 return;
|
|
|
2154 }
|
|
|
2155
|
|
428
|
2156 ngx_http_upstream_process_non_buffered_downstream(r);
|
|
130
|
2157
|
|
|
2158 } else {
|
|
|
2159 u->buffer.pos = u->buffer.start;
|
|
|
2160 u->buffer.last = u->buffer.start;
|
|
|
2161
|
|
|
2162 if (ngx_http_send_special(r, NGX_HTTP_FLUSH) == NGX_ERROR) {
|
|
|
2163 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2164 return;
|
|
|
2165 }
|
|
336
|
2166
|
|
640
|
2167 if (u->peer.connection->read->ready || u->length == 0) {
|
|
430
|
2168 ngx_http_upstream_process_non_buffered_upstream(r, u);
|
|
336
|
2169 }
|
|
130
|
2170 }
|
|
|
2171
|
|
|
2172 return;
|
|
|
2173 }
|
|
|
2174
|
|
28
|
2175 /* TODO: preallocate event_pipe bufs, look "Content-Length" */
|
|
|
2176
|
|
464
|
2177 #if (NGX_HTTP_CACHE)
|
|
|
2178
|
|
|
2179 if (r->cache && r->cache->file.fd != NGX_INVALID_FILE) {
|
|
|
2180 ngx_pool_run_cleanup_file(r->pool, r->cache->file.fd);
|
|
|
2181 r->cache->file.fd = NGX_INVALID_FILE;
|
|
28
|
2182 }
|
|
|
2183
|
|
588
|
2184 switch (ngx_http_test_predicates(r, u->conf->no_cache)) {
|
|
|
2185
|
|
|
2186 case NGX_ERROR:
|
|
|
2187 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2188 return;
|
|
|
2189
|
|
|
2190 case NGX_DECLINED:
|
|
|
2191 u->cacheable = 0;
|
|
|
2192 break;
|
|
|
2193
|
|
|
2194 default: /* NGX_OK */
|
|
|
2195
|
|
|
2196 if (u->cache_status == NGX_HTTP_CACHE_BYPASS) {
|
|
|
2197
|
|
|
2198 r->cache->min_uses = u->conf->cache_min_uses;
|
|
|
2199 r->cache->body_start = u->conf->buffer_size;
|
|
|
2200 r->cache->file_cache = u->conf->cache->data;
|
|
|
2201
|
|
|
2202 if (ngx_http_file_cache_create(r) != NGX_OK) {
|
|
|
2203 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2204 return;
|
|
|
2205 }
|
|
|
2206 }
|
|
|
2207
|
|
|
2208 break;
|
|
|
2209 }
|
|
|
2210
|
|
340
|
2211 if (u->cacheable) {
|
|
464
|
2212 time_t now, valid;
|
|
|
2213
|
|
472
|
2214 now = ngx_time();
|
|
|
2215
|
|
|
2216 valid = r->cache->valid_sec;
|
|
|
2217
|
|
|
2218 if (valid == 0) {
|
|
|
2219 valid = ngx_http_file_cache_valid(u->conf->cache_valid,
|
|
|
2220 u->headers_in.status_n);
|
|
|
2221 if (valid) {
|
|
|
2222 r->cache->valid_sec = now + valid;
|
|
|
2223 }
|
|
|
2224 }
|
|
|
2225
|
|
464
|
2226 if (valid) {
|
|
|
2227 r->cache->last_modified = r->headers_out.last_modified_time;
|
|
|
2228 r->cache->date = now;
|
|
|
2229 r->cache->body_start = (u_short) (u->buffer.pos - u->buffer.start);
|
|
|
2230
|
|
|
2231 ngx_http_file_cache_set_header(r, u->buffer.start);
|
|
|
2232
|
|
|
2233 } else {
|
|
|
2234 u->cacheable = 0;
|
|
480
|
2235 r->headers_out.last_modified_time = -1;
|
|
464
|
2236 }
|
|
28
|
2237 }
|
|
|
2238
|
|
478
|
2239 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2240 "http cacheable: %d", u->cacheable);
|
|
|
2241
|
|
524
|
2242 if (u->cacheable == 0 && r->cache) {
|
|
590
|
2243 ngx_http_file_cache_free(r->cache, u->pipe->temp_file);
|
|
524
|
2244 }
|
|
|
2245
|
|
28
|
2246 #endif
|
|
|
2247
|
|
130
|
2248 p = u->pipe;
|
|
28
|
2249
|
|
|
2250 p->output_filter = (ngx_event_pipe_output_filter_pt) ngx_http_output_filter;
|
|
|
2251 p->output_ctx = r;
|
|
|
2252 p->tag = u->output.tag;
|
|
126
|
2253 p->bufs = u->conf->bufs;
|
|
28
|
2254 p->busy_size = u->conf->busy_buffers_size;
|
|
|
2255 p->upstream = u->peer.connection;
|
|
132
|
2256 p->downstream = c;
|
|
28
|
2257 p->pool = r->pool;
|
|
132
|
2258 p->log = c->log;
|
|
126
|
2259
|
|
340
|
2260 p->cacheable = u->cacheable || u->store;
|
|
28
|
2261
|
|
50
|
2262 p->temp_file = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t));
|
|
|
2263 if (p->temp_file == NULL) {
|
|
28
|
2264 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2265 return;
|
|
|
2266 }
|
|
|
2267
|
|
|
2268 p->temp_file->file.fd = NGX_INVALID_FILE;
|
|
132
|
2269 p->temp_file->file.log = c->log;
|
|
28
|
2270 p->temp_file->path = u->conf->temp_path;
|
|
|
2271 p->temp_file->pool = r->pool;
|
|
126
|
2272
|
|
464
|
2273 if (p->cacheable) {
|
|
28
|
2274 p->temp_file->persistent = 1;
|
|
318
|
2275
|
|
28
|
2276 } else {
|
|
216
|
2277 p->temp_file->log_level = NGX_LOG_WARN;
|
|
28
|
2278 p->temp_file->warn = "an upstream response is buffered "
|
|
|
2279 "to a temporary file";
|
|
|
2280 }
|
|
|
2281
|
|
|
2282 p->max_temp_file_size = u->conf->max_temp_file_size;
|
|
|
2283 p->temp_file_write_size = u->conf->temp_file_write_size;
|
|
|
2284
|
|
50
|
2285 p->preread_bufs = ngx_alloc_chain_link(r->pool);
|
|
|
2286 if (p->preread_bufs == NULL) {
|
|
28
|
2287 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2288 return;
|
|
|
2289 }
|
|
318
|
2290
|
|
130
|
2291 p->preread_bufs->buf = &u->buffer;
|
|
28
|
2292 p->preread_bufs->next = NULL;
|
|
130
|
2293 u->buffer.recycled = 1;
|
|
|
2294
|
|
|
2295 p->preread_size = u->buffer.last - u->buffer.pos;
|
|
28
|
2296
|
|
340
|
2297 if (u->cacheable) {
|
|
318
|
2298
|
|
28
|
2299 p->buf_to_file = ngx_calloc_buf(r->pool);
|
|
|
2300 if (p->buf_to_file == NULL) {
|
|
|
2301 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2302 return;
|
|
|
2303 }
|
|
318
|
2304
|
|
690
|
2305 p->buf_to_file->start = u->buffer.start;
|
|
130
|
2306 p->buf_to_file->pos = u->buffer.start;
|
|
|
2307 p->buf_to_file->last = u->buffer.pos;
|
|
28
|
2308 p->buf_to_file->temporary = 1;
|
|
|
2309 }
|
|
|
2310
|
|
|
2311 if (ngx_event_flags & NGX_USE_AIO_EVENT) {
|
|
664
|
2312 /* the posted aio operation may corrupt a shadow buffer */
|
|
28
|
2313 p->single_buf = 1;
|
|
|
2314 }
|
|
|
2315
|
|
|
2316 /* TODO: p->free_bufs = 0 if use ngx_create_chain_of_bufs() */
|
|
|
2317 p->free_bufs = 1;
|
|
|
2318
|
|
|
2319 /*
|
|
130
|
2320 * event_pipe would do u->buffer.last += p->preread_size
|
|
28
|
2321 * as though these bytes were read
|
|
|
2322 */
|
|
130
|
2323 u->buffer.last = u->buffer.pos;
|
|
28
|
2324
|
|
|
2325 if (u->conf->cyclic_temp_file) {
|
|
|
2326
|
|
|
2327 /*
|
|
|
2328 * we need to disable the use of sendfile() if we use cyclic temp file
|
|
|
2329 * because the writing a new data may interfere with sendfile()
|
|
|
2330 * that uses the same kernel file pages (at least on FreeBSD)
|
|
|
2331 */
|
|
|
2332
|
|
|
2333 p->cyclic_temp_file = 1;
|
|
132
|
2334 c->sendfile = 0;
|
|
28
|
2335
|
|
|
2336 } else {
|
|
|
2337 p->cyclic_temp_file = 0;
|
|
|
2338 }
|
|
|
2339
|
|
|
2340 p->read_timeout = u->conf->read_timeout;
|
|
|
2341 p->send_timeout = clcf->send_timeout;
|
|
|
2342 p->send_lowat = clcf->send_lowat;
|
|
|
2343
|
|
640
|
2344 p->length = -1;
|
|
|
2345
|
|
|
2346 if (u->input_filter_init
|
|
|
2347 && u->input_filter_init(p->input_ctx) != NGX_OK)
|
|
|
2348 {
|
|
|
2349 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2350 return;
|
|
|
2351 }
|
|
|
2352
|
|
428
|
2353 u->read_event_handler = ngx_http_upstream_process_upstream;
|
|
58
|
2354 r->write_event_handler = ngx_http_upstream_process_downstream;
|
|
28
|
2355
|
|
430
|
2356 ngx_http_upstream_process_upstream(r, u);
|
|
28
|
2357 }
|
|
|
2358
|
|
|
2359
|
|
36
|
2360 static void
|
|
130
|
2361 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r)
|
|
|
2362 {
|
|
428
|
2363 ngx_event_t *wev;
|
|
|
2364 ngx_connection_t *c;
|
|
|
2365 ngx_http_upstream_t *u;
|
|
|
2366
|
|
|
2367 c = r->connection;
|
|
|
2368 u = r->upstream;
|
|
|
2369 wev = c->write;
|
|
|
2370
|
|
|
2371 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2372 "http upstream process non buffered downstream");
|
|
|
2373
|
|
|
2374 c->log->action = "sending to client";
|
|
|
2375
|
|
|
2376 if (wev->timedout) {
|
|
|
2377 c->timedout = 1;
|
|
|
2378 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out");
|
|
632
|
2379 ngx_http_upstream_finalize_request(r, u, NGX_HTTP_REQUEST_TIME_OUT);
|
|
428
|
2380 return;
|
|
|
2381 }
|
|
|
2382
|
|
|
2383 ngx_http_upstream_process_non_buffered_request(r, 1);
|
|
130
|
2384 }
|
|
|
2385
|
|
|
2386
|
|
|
2387 static void
|
|
430
|
2388 ngx_http_upstream_process_non_buffered_upstream(ngx_http_request_t *r,
|
|
|
2389 ngx_http_upstream_t *u)
|
|
428
|
2390 {
|
|
430
|
2391 ngx_connection_t *c;
|
|
|
2392
|
|
|
2393 c = u->peer.connection;
|
|
428
|
2394
|
|
|
2395 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2396 "http upstream process non buffered upstream");
|
|
|
2397
|
|
|
2398 c->log->action = "reading upstream";
|
|
|
2399
|
|
430
|
2400 if (c->read->timedout) {
|
|
428
|
2401 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out");
|
|
|
2402 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2403 return;
|
|
|
2404 }
|
|
|
2405
|
|
|
2406 ngx_http_upstream_process_non_buffered_request(r, 0);
|
|
|
2407 }
|
|
|
2408
|
|
|
2409
|
|
|
2410 static void
|
|
|
2411 ngx_http_upstream_process_non_buffered_request(ngx_http_request_t *r,
|
|
|
2412 ngx_uint_t do_write)
|
|
130
|
2413 {
|
|
|
2414 size_t size;
|
|
|
2415 ssize_t n;
|
|
|
2416 ngx_buf_t *b;
|
|
132
|
2417 ngx_int_t rc;
|
|
428
|
2418 ngx_connection_t *downstream, *upstream;
|
|
130
|
2419 ngx_http_upstream_t *u;
|
|
|
2420 ngx_http_core_loc_conf_t *clcf;
|
|
|
2421
|
|
244
|
2422 u = r->upstream;
|
|
260
|
2423 downstream = r->connection;
|
|
|
2424 upstream = u->peer.connection;
|
|
130
|
2425
|
|
|
2426 b = &u->buffer;
|
|
|
2427
|
|
428
|
2428 do_write = do_write || u->length == 0;
|
|
130
|
2429
|
|
|
2430 for ( ;; ) {
|
|
|
2431
|
|
|
2432 if (do_write) {
|
|
|
2433
|
|
|
2434 if (u->out_bufs || u->busy_bufs) {
|
|
132
|
2435 rc = ngx_http_output_filter(r, u->out_bufs);
|
|
|
2436
|
|
|
2437 if (rc == NGX_ERROR) {
|
|
130
|
2438 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2439 return;
|
|
|
2440 }
|
|
|
2441
|
|
640
|
2442 ngx_chain_update_chains(r->pool, &u->free_bufs, &u->busy_bufs,
|
|
130
|
2443 &u->out_bufs, u->output.tag);
|
|
|
2444 }
|
|
|
2445
|
|
|
2446 if (u->busy_bufs == NULL) {
|
|
|
2447
|
|
|
2448 if (u->length == 0
|
|
260
|
2449 || upstream->read->eof
|
|
|
2450 || upstream->read->error)
|
|
130
|
2451 {
|
|
|
2452 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2453 return;
|
|
|
2454 }
|
|
|
2455
|
|
|
2456 b->pos = b->start;
|
|
|
2457 b->last = b->start;
|
|
|
2458 }
|
|
|
2459 }
|
|
|
2460
|
|
|
2461 size = b->end - b->last;
|
|
|
2462
|
|
260
|
2463 if (size && upstream->read->ready) {
|
|
|
2464
|
|
|
2465 n = upstream->recv(upstream, b->last, size);
|
|
130
|
2466
|
|
|
2467 if (n == NGX_AGAIN) {
|
|
|
2468 break;
|
|
|
2469 }
|
|
|
2470
|
|
|
2471 if (n > 0) {
|
|
430
|
2472 u->state->response_length += n;
|
|
|
2473
|
|
130
|
2474 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) {
|
|
|
2475 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2476 return;
|
|
|
2477 }
|
|
|
2478 }
|
|
|
2479
|
|
|
2480 do_write = 1;
|
|
|
2481
|
|
|
2482 continue;
|
|
|
2483 }
|
|
|
2484
|
|
|
2485 break;
|
|
|
2486 }
|
|
|
2487
|
|
428
|
2488 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2489
|
|
260
|
2490 if (downstream->data == r) {
|
|
|
2491 if (ngx_handle_write_event(downstream->write, clcf->send_lowat)
|
|
426
|
2492 != NGX_OK)
|
|
132
|
2493 {
|
|
|
2494 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2495 return;
|
|
|
2496 }
|
|
130
|
2497 }
|
|
|
2498
|
|
276
|
2499 if (downstream->write->active && !downstream->write->ready) {
|
|
260
|
2500 ngx_add_timer(downstream->write, clcf->send_timeout);
|
|
|
2501
|
|
|
2502 } else if (downstream->write->timer_set) {
|
|
|
2503 ngx_del_timer(downstream->write);
|
|
130
|
2504 }
|
|
|
2505
|
|
426
|
2506 if (ngx_handle_read_event(upstream->read, 0) != NGX_OK) {
|
|
130
|
2507 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2508 return;
|
|
|
2509 }
|
|
|
2510
|
|
276
|
2511 if (upstream->read->active && !upstream->read->ready) {
|
|
260
|
2512 ngx_add_timer(upstream->read, u->conf->read_timeout);
|
|
|
2513
|
|
|
2514 } else if (upstream->read->timer_set) {
|
|
|
2515 ngx_del_timer(upstream->read);
|
|
130
|
2516 }
|
|
|
2517 }
|
|
|
2518
|
|
|
2519
|
|
|
2520 static ngx_int_t
|
|
|
2521 ngx_http_upstream_non_buffered_filter_init(void *data)
|
|
|
2522 {
|
|
|
2523 return NGX_OK;
|
|
|
2524 }
|
|
|
2525
|
|
|
2526
|
|
|
2527 static ngx_int_t
|
|
|
2528 ngx_http_upstream_non_buffered_filter(void *data, ssize_t bytes)
|
|
|
2529 {
|
|
|
2530 ngx_http_request_t *r = data;
|
|
|
2531
|
|
|
2532 ngx_buf_t *b;
|
|
|
2533 ngx_chain_t *cl, **ll;
|
|
|
2534 ngx_http_upstream_t *u;
|
|
|
2535
|
|
|
2536 u = r->upstream;
|
|
|
2537
|
|
|
2538 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) {
|
|
|
2539 ll = &cl->next;
|
|
|
2540 }
|
|
|
2541
|
|
|
2542 cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs);
|
|
|
2543 if (cl == NULL) {
|
|
|
2544 return NGX_ERROR;
|
|
|
2545 }
|
|
|
2546
|
|
|
2547 *ll = cl;
|
|
|
2548
|
|
|
2549 cl->buf->flush = 1;
|
|
|
2550 cl->buf->memory = 1;
|
|
|
2551
|
|
|
2552 b = &u->buffer;
|
|
|
2553
|
|
|
2554 cl->buf->pos = b->last;
|
|
|
2555 b->last += bytes;
|
|
|
2556 cl->buf->last = b->last;
|
|
366
|
2557 cl->buf->tag = u->output.tag;
|
|
130
|
2558
|
|
640
|
2559 if (u->length == -1) {
|
|
130
|
2560 return NGX_OK;
|
|
|
2561 }
|
|
|
2562
|
|
|
2563 u->length -= bytes;
|
|
|
2564
|
|
|
2565 return NGX_OK;
|
|
|
2566 }
|
|
|
2567
|
|
|
2568
|
|
|
2569 static void
|
|
58
|
2570 ngx_http_upstream_process_downstream(ngx_http_request_t *r)
|
|
|
2571 {
|
|
428
|
2572 ngx_event_t *wev;
|
|
|
2573 ngx_connection_t *c;
|
|
58
|
2574 ngx_event_pipe_t *p;
|
|
28
|
2575 ngx_http_upstream_t *u;
|
|
|
2576
|
|
428
|
2577 c = r->connection;
|
|
28
|
2578 u = r->upstream;
|
|
130
|
2579 p = u->pipe;
|
|
428
|
2580 wev = c->write;
|
|
|
2581
|
|
|
2582 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2583 "http upstream process downstream");
|
|
|
2584
|
|
|
2585 c->log->action = "sending to client";
|
|
|
2586
|
|
|
2587 if (wev->timedout) {
|
|
|
2588
|
|
|
2589 if (wev->delayed) {
|
|
|
2590
|
|
|
2591 wev->timedout = 0;
|
|
|
2592 wev->delayed = 0;
|
|
|
2593
|
|
|
2594 if (!wev->ready) {
|
|
|
2595 ngx_add_timer(wev, p->send_timeout);
|
|
|
2596
|
|
|
2597 if (ngx_handle_write_event(wev, p->send_lowat) != NGX_OK) {
|
|
|
2598 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2599 }
|
|
|
2600
|
|
|
2601 return;
|
|
|
2602 }
|
|
|
2603
|
|
|
2604 if (ngx_event_pipe(p, wev->write) == NGX_ABORT) {
|
|
|
2605 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2606 return;
|
|
76
|
2607 }
|
|
28
|
2608
|
|
|
2609 } else {
|
|
428
|
2610 p->downstream_error = 1;
|
|
|
2611 c->timedout = 1;
|
|
|
2612 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out");
|
|
28
|
2613 }
|
|
|
2614
|
|
|
2615 } else {
|
|
428
|
2616
|
|
|
2617 if (wev->delayed) {
|
|
|
2618
|
|
76
|
2619 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2620 "http downstream delayed");
|
|
|
2621
|
|
428
|
2622 if (ngx_handle_write_event(wev, p->send_lowat) != NGX_OK) {
|
|
426
|
2623 ngx_http_upstream_finalize_request(r, u, 0);
|
|
76
|
2624 }
|
|
|
2625
|
|
|
2626 return;
|
|
|
2627 }
|
|
|
2628
|
|
428
|
2629 if (ngx_event_pipe(p, 1) == NGX_ABORT) {
|
|
28
|
2630 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2631 return;
|
|
|
2632 }
|
|
|
2633 }
|
|
126
|
2634
|
|
428
|
2635 ngx_http_upstream_process_request(r);
|
|
|
2636 }
|
|
|
2637
|
|
|
2638
|
|
|
2639 static void
|
|
430
|
2640 ngx_http_upstream_process_upstream(ngx_http_request_t *r,
|
|
|
2641 ngx_http_upstream_t *u)
|
|
428
|
2642 {
|
|
430
|
2643 ngx_connection_t *c;
|
|
|
2644
|
|
|
2645 c = u->peer.connection;
|
|
428
|
2646
|
|
|
2647 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2648 "http upstream process upstream");
|
|
|
2649
|
|
|
2650 c->log->action = "reading upstream";
|
|
|
2651
|
|
430
|
2652 if (c->read->timedout) {
|
|
|
2653 u->pipe->upstream_error = 1;
|
|
428
|
2654 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out");
|
|
|
2655
|
|
|
2656 } else {
|
|
430
|
2657 if (ngx_event_pipe(u->pipe, 0) == NGX_ABORT) {
|
|
428
|
2658 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2659 return;
|
|
|
2660 }
|
|
|
2661 }
|
|
|
2662
|
|
|
2663 ngx_http_upstream_process_request(r);
|
|
|
2664 }
|
|
|
2665
|
|
|
2666
|
|
|
2667 static void
|
|
|
2668 ngx_http_upstream_process_request(ngx_http_request_t *r)
|
|
|
2669 {
|
|
|
2670 ngx_temp_file_t *tf;
|
|
|
2671 ngx_event_pipe_t *p;
|
|
|
2672 ngx_http_upstream_t *u;
|
|
|
2673
|
|
|
2674 u = r->upstream;
|
|
|
2675 p = u->pipe;
|
|
|
2676
|
|
28
|
2677 if (u->peer.connection) {
|
|
|
2678
|
|
318
|
2679 if (u->store) {
|
|
|
2680
|
|
440
|
2681 if (p->upstream_eof || p->upstream_done) {
|
|
438
|
2682
|
|
662
|
2683 tf = u->pipe->temp_file;
|
|
|
2684
|
|
438
|
2685 if (u->headers_in.status_n == NGX_HTTP_OK
|
|
|
2686 && (u->headers_in.content_length_n == -1
|
|
|
2687 || (u->headers_in.content_length_n == tf->offset)))
|
|
|
2688 {
|
|
|
2689 ngx_http_upstream_store(r, u);
|
|
662
|
2690 u->store = 0;
|
|
318
|
2691 }
|
|
|
2692 }
|
|
|
2693 }
|
|
|
2694
|
|
464
|
2695 #if (NGX_HTTP_CACHE)
|
|
|
2696
|
|
|
2697 if (u->cacheable) {
|
|
|
2698
|
|
|
2699 if (p->upstream_done) {
|
|
|
2700 ngx_http_file_cache_update(r, u->pipe->temp_file);
|
|
|
2701
|
|
|
2702 } else if (p->upstream_eof) {
|
|
|
2703
|
|
650
|
2704 tf = u->pipe->temp_file;
|
|
|
2705
|
|
|
2706 if (u->headers_in.content_length_n == -1
|
|
|
2707 || u->headers_in.content_length_n
|
|
|
2708 == tf->offset - (off_t) r->cache->body_start)
|
|
|
2709 {
|
|
|
2710 ngx_http_file_cache_update(r, tf);
|
|
|
2711
|
|
|
2712 } else {
|
|
|
2713 ngx_http_file_cache_free(r->cache, tf);
|
|
|
2714 }
|
|
464
|
2715
|
|
|
2716 } else if (p->upstream_error) {
|
|
590
|
2717 ngx_http_file_cache_free(r->cache, u->pipe->temp_file);
|
|
28
|
2718 }
|
|
|
2719 }
|
|
|
2720
|
|
|
2721 #endif
|
|
|
2722
|
|
|
2723 if (p->upstream_done || p->upstream_eof || p->upstream_error) {
|
|
428
|
2724 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
32
|
2725 "http upstream exit: %p", p->out);
|
|
28
|
2726 #if 0
|
|
|
2727 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock);
|
|
|
2728 #endif
|
|
|
2729 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2730 return;
|
|
|
2731 }
|
|
|
2732 }
|
|
|
2733
|
|
|
2734 if (p->downstream_error) {
|
|
428
|
2735 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
32
|
2736 "http upstream downstream error");
|
|
28
|
2737
|
|
482
|
2738 if (!u->cacheable && !u->store && u->peer.connection) {
|
|
28
|
2739 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2740 }
|
|
|
2741 }
|
|
|
2742 }
|
|
|
2743
|
|
|
2744
|
|
36
|
2745 static void
|
|
318
|
2746 ngx_http_upstream_store(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
|
2747 {
|
|
370
|
2748 size_t root;
|
|
|
2749 time_t lm;
|
|
|
2750 ngx_str_t path;
|
|
|
2751 ngx_temp_file_t *tf;
|
|
|
2752 ngx_ext_rename_file_t ext;
|
|
318
|
2753
|
|
358
|
2754 tf = u->pipe->temp_file;
|
|
|
2755
|
|
|
2756 if (tf->file.fd == NGX_INVALID_FILE) {
|
|
318
|
2757
|
|
|
2758 /* create file for empty 200 response */
|
|
|
2759
|
|
|
2760 tf = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t));
|
|
|
2761 if (tf == NULL) {
|
|
|
2762 return;
|
|
|
2763 }
|
|
|
2764
|
|
|
2765 tf->file.fd = NGX_INVALID_FILE;
|
|
|
2766 tf->file.log = r->connection->log;
|
|
|
2767 tf->path = u->conf->temp_path;
|
|
|
2768 tf->pool = r->pool;
|
|
|
2769 tf->persistent = 1;
|
|
|
2770
|
|
|
2771 if (ngx_create_temp_file(&tf->file, tf->path, tf->pool,
|
|
|
2772 tf->persistent, tf->clean, tf->access)
|
|
|
2773 != NGX_OK)
|
|
|
2774 {
|
|
|
2775 return;
|
|
|
2776 }
|
|
|
2777
|
|
|
2778 u->pipe->temp_file = tf;
|
|
|
2779 }
|
|
|
2780
|
|
370
|
2781 ext.access = u->conf->store_access;
|
|
430
|
2782 ext.path_access = u->conf->store_access;
|
|
370
|
2783 ext.time = -1;
|
|
|
2784 ext.create_path = 1;
|
|
|
2785 ext.delete_file = 1;
|
|
|
2786 ext.log = r->connection->log;
|
|
318
|
2787
|
|
356
|
2788 if (u->headers_in.last_modified) {
|
|
|
2789
|
|
370
|
2790 lm = ngx_http_parse_time(u->headers_in.last_modified->value.data,
|
|
|
2791 u->headers_in.last_modified->value.len);
|
|
318
|
2792
|
|
|
2793 if (lm != NGX_ERROR) {
|
|
370
|
2794 ext.time = lm;
|
|
|
2795 ext.fd = tf->file.fd;
|
|
318
|
2796 }
|
|
|
2797 }
|
|
|
2798
|
|
320
|
2799 if (u->conf->store_lengths == NULL) {
|
|
|
2800
|
|
|
2801 ngx_http_map_uri_to_path(r, &path, &root, 0);
|
|
|
2802
|
|
|
2803 } else {
|
|
|
2804 if (ngx_http_script_run(r, &path, u->conf->store_lengths->elts, 0,
|
|
|
2805 u->conf->store_values->elts)
|
|
|
2806 == NULL)
|
|
|
2807 {
|
|
|
2808 return;
|
|
|
2809 }
|
|
|
2810 }
|
|
318
|
2811
|
|
516
|
2812 path.len--;
|
|
|
2813
|
|
318
|
2814 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
370
|
2815 "upstream stores \"%s\" to \"%s\"",
|
|
|
2816 tf->file.name.data, path.data);
|
|
|
2817
|
|
|
2818 (void) ngx_ext_rename_file(&tf->file.name, &path, &ext);
|
|
318
|
2819 }
|
|
|
2820
|
|
|
2821
|
|
|
2822 static void
|
|
430
|
2823 ngx_http_upstream_dummy_handler(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
28
|
2824 {
|
|
430
|
2825 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
28
|
2826 "http upstream dummy handler");
|
|
|
2827 }
|
|
|
2828
|
|
|
2829
|
|
36
|
2830 static void
|
|
|
2831 ngx_http_upstream_next(ngx_http_request_t *r, ngx_http_upstream_t *u,
|
|
|
2832 ngx_uint_t ft_type)
|
|
28
|
2833 {
|
|
260
|
2834 ngx_uint_t status, state;
|
|
28
|
2835
|
|
|
2836 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
260
|
2837 "http next upstream, %xi", ft_type);
|
|
28
|
2838
|
|
|
2839 #if 0
|
|
|
2840 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock);
|
|
|
2841 #endif
|
|
|
2842
|
|
74
|
2843 if (ft_type == NGX_HTTP_UPSTREAM_FT_HTTP_404) {
|
|
260
|
2844 state = NGX_PEER_NEXT;
|
|
74
|
2845 } else {
|
|
260
|
2846 state = NGX_PEER_FAILED;
|
|
28
|
2847 }
|
|
74
|
2848
|
|
326
|
2849 if (ft_type != NGX_HTTP_UPSTREAM_FT_NOLIVE) {
|
|
|
2850 u->peer.free(&u->peer, u->peer.data, state);
|
|
|
2851 }
|
|
74
|
2852
|
|
28
|
2853 if (ft_type == NGX_HTTP_UPSTREAM_FT_TIMEOUT) {
|
|
|
2854 ngx_log_error(NGX_LOG_ERR, r->connection->log, NGX_ETIMEDOUT,
|
|
|
2855 "upstream timed out");
|
|
|
2856 }
|
|
126
|
2857
|
|
28
|
2858 if (u->peer.cached && ft_type == NGX_HTTP_UPSTREAM_FT_ERROR) {
|
|
|
2859 status = 0;
|
|
|
2860
|
|
640
|
2861 /* TODO: inform balancer instead */
|
|
|
2862
|
|
|
2863 u->peer.tries++;
|
|
|
2864
|
|
28
|
2865 } else {
|
|
|
2866 switch(ft_type) {
|
|
|
2867
|
|
|
2868 case NGX_HTTP_UPSTREAM_FT_TIMEOUT:
|
|
|
2869 status = NGX_HTTP_GATEWAY_TIME_OUT;
|
|
|
2870 break;
|
|
|
2871
|
|
|
2872 case NGX_HTTP_UPSTREAM_FT_HTTP_500:
|
|
|
2873 status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
2874 break;
|
|
|
2875
|
|
|
2876 case NGX_HTTP_UPSTREAM_FT_HTTP_404:
|
|
|
2877 status = NGX_HTTP_NOT_FOUND;
|
|
|
2878 break;
|
|
|
2879
|
|
|
2880 /*
|
|
|
2881 * NGX_HTTP_UPSTREAM_FT_BUSY_LOCK and NGX_HTTP_UPSTREAM_FT_MAX_WAITING
|
|
|
2882 * never reach here
|
|
|
2883 */
|
|
|
2884
|
|
|
2885 default:
|
|
|
2886 status = NGX_HTTP_BAD_GATEWAY;
|
|
|
2887 }
|
|
|
2888 }
|
|
|
2889
|
|
132
|
2890 if (r->connection->error) {
|
|
28
|
2891 ngx_http_upstream_finalize_request(r, u,
|
|
|
2892 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
2893 return;
|
|
|
2894 }
|
|
|
2895
|
|
|
2896 if (status) {
|
|
|
2897 u->state->status = status;
|
|
|
2898
|
|
74
|
2899 if (u->peer.tries == 0 || !(u->conf->next_upstream & ft_type)) {
|
|
28
|
2900
|
|
|
2901 #if (NGX_HTTP_CACHE)
|
|
|
2902
|
|
502
|
2903 if (u->cache_status == NGX_HTTP_CACHE_EXPIRED
|
|
|
2904 && (u->conf->cache_use_stale & ft_type))
|
|
|
2905 {
|
|
486
|
2906 ngx_int_t rc;
|
|
|
2907
|
|
|
2908 rc = u->reinit_request(r);
|
|
|
2909
|
|
|
2910 if (rc == NGX_OK) {
|
|
502
|
2911 u->cache_status = NGX_HTTP_CACHE_STALE;
|
|
486
|
2912 rc = ngx_http_upstream_cache_send(r, u);
|
|
|
2913 }
|
|
|
2914
|
|
|
2915 ngx_http_upstream_finalize_request(r, u, rc);
|
|
28
|
2916 return;
|
|
|
2917 }
|
|
|
2918 #endif
|
|
|
2919
|
|
|
2920 ngx_http_upstream_finalize_request(r, u, status);
|
|
|
2921 return;
|
|
|
2922 }
|
|
|
2923 }
|
|
|
2924
|
|
|
2925 if (u->peer.connection) {
|
|
|
2926 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2927 "close http upstream connection: %d",
|
|
|
2928 u->peer.connection->fd);
|
|
126
|
2929 #if (NGX_HTTP_SSL)
|
|
260
|
2930
|
|
126
|
2931 if (u->peer.connection->ssl) {
|
|
260
|
2932 u->peer.connection->ssl->no_wait_shutdown = 1;
|
|
|
2933 u->peer.connection->ssl->no_send_shutdown = 1;
|
|
|
2934
|
|
|
2935 (void) ngx_ssl_shutdown(u->peer.connection);
|
|
126
|
2936 }
|
|
|
2937 #endif
|
|
260
|
2938
|
|
640
|
2939 if (u->peer.connection->pool) {
|
|
|
2940 ngx_destroy_pool(u->peer.connection->pool);
|
|
|
2941 }
|
|
|
2942
|
|
28
|
2943 ngx_close_connection(u->peer.connection);
|
|
642
|
2944 u->peer.connection = NULL;
|
|
28
|
2945 }
|
|
|
2946
|
|
|
2947 #if 0
|
|
|
2948 if (u->conf->busy_lock && !u->busy_locked) {
|
|
|
2949 ngx_http_upstream_busy_lock(p);
|
|
|
2950 return;
|
|
|
2951 }
|
|
|
2952 #endif
|
|
|
2953
|
|
|
2954 ngx_http_upstream_connect(r, u);
|
|
|
2955 }
|
|
|
2956
|
|
|
2957
|
|
36
|
2958 static void
|
|
118
|
2959 ngx_http_upstream_cleanup(void *data)
|
|
|
2960 {
|
|
|
2961 ngx_http_request_t *r = data;
|
|
|
2962
|
|
356
|
2963 ngx_http_upstream_t *u;
|
|
|
2964
|
|
118
|
2965 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2966 "cleanup http upstream request: \"%V\"", &r->uri);
|
|
|
2967
|
|
356
|
2968 u = r->upstream;
|
|
|
2969
|
|
|
2970 if (u->resolved && u->resolved->ctx) {
|
|
|
2971 ngx_resolve_name_done(u->resolved->ctx);
|
|
530
|
2972 u->resolved->ctx = NULL;
|
|
348
|
2973 }
|
|
|
2974
|
|
356
|
2975 ngx_http_upstream_finalize_request(r, u, NGX_DONE);
|
|
118
|
2976 }
|
|
|
2977
|
|
|
2978
|
|
|
2979 static void
|
|
36
|
2980 ngx_http_upstream_finalize_request(ngx_http_request_t *r,
|
|
|
2981 ngx_http_upstream_t *u, ngx_int_t rc)
|
|
28
|
2982 {
|
|
262
|
2983 ngx_time_t *tp;
|
|
112
|
2984
|
|
32
|
2985 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2986 "finalize http upstream request: %i", rc);
|
|
28
|
2987
|
|
432
|
2988 if (u->cleanup) {
|
|
|
2989 *u->cleanup = NULL;
|
|
562
|
2990 u->cleanup = NULL;
|
|
432
|
2991 }
|
|
118
|
2992
|
|
530
|
2993 if (u->resolved && u->resolved->ctx) {
|
|
|
2994 ngx_resolve_name_done(u->resolved->ctx);
|
|
|
2995 u->resolved->ctx = NULL;
|
|
|
2996 }
|
|
|
2997
|
|
348
|
2998 if (u->state && u->state->response_sec) {
|
|
112
|
2999 tp = ngx_timeofday();
|
|
262
|
3000 u->state->response_sec = tp->sec - u->state->response_sec;
|
|
|
3001 u->state->response_msec = tp->msec - u->state->response_msec;
|
|
430
|
3002
|
|
|
3003 if (u->pipe) {
|
|
|
3004 u->state->response_length = u->pipe->read_length;
|
|
|
3005 }
|
|
112
|
3006 }
|
|
|
3007
|
|
28
|
3008 u->finalize_request(r, rc);
|
|
|
3009
|
|
348
|
3010 if (u->peer.free) {
|
|
|
3011 u->peer.free(&u->peer, u->peer.data, 0);
|
|
|
3012 }
|
|
260
|
3013
|
|
28
|
3014 if (u->peer.connection) {
|
|
260
|
3015
|
|
126
|
3016 #if (NGX_HTTP_SSL)
|
|
|
3017
|
|
|
3018 /* TODO: do not shutdown persistent connection */
|
|
|
3019
|
|
|
3020 if (u->peer.connection->ssl) {
|
|
260
|
3021
|
|
|
3022 /*
|
|
|
3023 * We send the "close notify" shutdown alert to the upstream only
|
|
|
3024 * and do not wait its "close notify" shutdown alert.
|
|
|
3025 * It is acceptable according to the TLS standard.
|
|
|
3026 */
|
|
|
3027
|
|
|
3028 u->peer.connection->ssl->no_wait_shutdown = 1;
|
|
|
3029
|
|
|
3030 (void) ngx_ssl_shutdown(u->peer.connection);
|
|
126
|
3031 }
|
|
|
3032 #endif
|
|
260
|
3033
|
|
|
3034 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
3035 "close http upstream connection: %d",
|
|
|
3036 u->peer.connection->fd);
|
|
|
3037
|
|
640
|
3038 if (u->peer.connection->pool) {
|
|
|
3039 ngx_destroy_pool(u->peer.connection->pool);
|
|
|
3040 }
|
|
|
3041
|
|
28
|
3042 ngx_close_connection(u->peer.connection);
|
|
|
3043 }
|
|
|
3044
|
|
32
|
3045 u->peer.connection = NULL;
|
|
|
3046
|
|
130
|
3047 if (u->pipe && u->pipe->temp_file) {
|
|
28
|
3048 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
3049 "http upstream temp fd: %d",
|
|
130
|
3050 u->pipe->temp_file->file.fd);
|
|
28
|
3051 }
|
|
|
3052
|
|
662
|
3053 if (u->store && u->pipe && u->pipe->temp_file
|
|
|
3054 && u->pipe->temp_file->file.fd != NGX_INVALID_FILE)
|
|
|
3055 {
|
|
|
3056 if (ngx_delete_file(u->pipe->temp_file->file.name.data)
|
|
|
3057 == NGX_FILE_ERROR)
|
|
|
3058 {
|
|
|
3059 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
|
|
|
3060 ngx_delete_file_n " \"%s\" failed",
|
|
|
3061 u->pipe->temp_file->file.name.data);
|
|
|
3062 }
|
|
|
3063 }
|
|
|
3064
|
|
464
|
3065 #if (NGX_HTTP_CACHE)
|
|
|
3066
|
|
630
|
3067 if (r->cache) {
|
|
|
3068
|
|
|
3069 if (u->cacheable) {
|
|
|
3070
|
|
|
3071 if (rc == NGX_HTTP_BAD_GATEWAY || rc == NGX_HTTP_GATEWAY_TIME_OUT) {
|
|
|
3072 time_t valid;
|
|
|
3073
|
|
|
3074 valid = ngx_http_file_cache_valid(u->conf->cache_valid, rc);
|
|
|
3075
|
|
|
3076 if (valid) {
|
|
|
3077 r->cache->valid_sec = ngx_time() + valid;
|
|
|
3078 r->cache->error = rc;
|
|
|
3079 }
|
|
464
|
3080 }
|
|
|
3081 }
|
|
|
3082
|
|
590
|
3083 ngx_http_file_cache_free(r->cache, u->pipe->temp_file);
|
|
28
|
3084 }
|
|
464
|
3085
|
|
28
|
3086 #endif
|
|
|
3087
|
|
478
|
3088 if (u->header_sent
|
|
632
|
3089 && rc != NGX_HTTP_REQUEST_TIME_OUT
|
|
478
|
3090 && (rc == NGX_ERROR || rc >= NGX_HTTP_SPECIAL_RESPONSE))
|
|
464
|
3091 {
|
|
|
3092 rc = 0;
|
|
|
3093 }
|
|
|
3094
|
|
64
|
3095 if (rc == NGX_DECLINED) {
|
|
|
3096 return;
|
|
|
3097 }
|
|
|
3098
|
|
32
|
3099 r->connection->log->action = "sending to client";
|
|
|
3100
|
|
642
|
3101 if (rc == 0
|
|
694
|
3102 && !r->header_only
|
|
642
|
3103 #if (NGX_HTTP_CACHE)
|
|
|
3104 && !r->cached
|
|
|
3105 #endif
|
|
|
3106 )
|
|
|
3107 {
|
|
426
|
3108 rc = ngx_http_send_special(r, NGX_HTTP_LAST);
|
|
28
|
3109 }
|
|
|
3110
|
|
|
3111 ngx_http_finalize_request(r, rc);
|
|
|
3112 }
|
|
|
3113
|
|
|
3114
|
|
58
|
3115 static ngx_int_t
|
|
|
3116 ngx_http_upstream_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3117 ngx_uint_t offset)
|
|
126
|
3118 {
|
|
58
|
3119 ngx_table_elt_t **ph;
|
|
126
|
3120
|
|
58
|
3121 ph = (ngx_table_elt_t **) ((char *) &r->upstream->headers_in + offset);
|
|
|
3122
|
|
|
3123 if (*ph == NULL) {
|
|
|
3124 *ph = h;
|
|
|
3125 }
|
|
|
3126
|
|
|
3127 return NGX_OK;
|
|
|
3128 }
|
|
|
3129
|
|
|
3130
|
|
|
3131 static ngx_int_t
|
|
472
|
3132 ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3133 ngx_uint_t offset)
|
|
|
3134 {
|
|
|
3135 return NGX_OK;
|
|
|
3136 }
|
|
|
3137
|
|
|
3138
|
|
|
3139 static ngx_int_t
|
|
640
|
3140 ngx_http_upstream_process_content_length(ngx_http_request_t *r,
|
|
|
3141 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
3142 {
|
|
|
3143 ngx_http_upstream_t *u;
|
|
|
3144
|
|
|
3145 u = r->upstream;
|
|
|
3146
|
|
|
3147 u->headers_in.content_length = h;
|
|
|
3148 u->headers_in.content_length_n = ngx_atoof(h->value.data, h->value.len);
|
|
|
3149
|
|
|
3150 return NGX_OK;
|
|
|
3151 }
|
|
|
3152
|
|
|
3153
|
|
|
3154 static ngx_int_t
|
|
584
|
3155 ngx_http_upstream_process_set_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3156 ngx_uint_t offset)
|
|
|
3157 {
|
|
|
3158 #if (NGX_HTTP_CACHE)
|
|
|
3159 ngx_http_upstream_t *u;
|
|
|
3160
|
|
|
3161 u = r->upstream;
|
|
|
3162
|
|
|
3163 if (!(u->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_SET_COOKIE)) {
|
|
|
3164 u->cacheable = 0;
|
|
|
3165 }
|
|
|
3166 #endif
|
|
|
3167
|
|
|
3168 return NGX_OK;
|
|
|
3169 }
|
|
|
3170
|
|
|
3171
|
|
|
3172 static ngx_int_t
|
|
472
|
3173 ngx_http_upstream_process_cache_control(ngx_http_request_t *r,
|
|
58
|
3174 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
3175 {
|
|
484
|
3176 ngx_array_t *pa;
|
|
|
3177 ngx_table_elt_t **ph;
|
|
|
3178 ngx_http_upstream_t *u;
|
|
|
3179
|
|
|
3180 u = r->upstream;
|
|
|
3181 pa = &u->headers_in.cache_control;
|
|
58
|
3182
|
|
|
3183 if (pa->elts == NULL) {
|
|
|
3184 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK)
|
|
|
3185 {
|
|
|
3186 return NGX_ERROR;
|
|
|
3187 }
|
|
|
3188 }
|
|
|
3189
|
|
|
3190 ph = ngx_array_push(pa);
|
|
|
3191 if (ph == NULL) {
|
|
|
3192 return NGX_ERROR;
|
|
|
3193 }
|
|
|
3194
|
|
|
3195 *ph = h;
|
|
|
3196
|
|
480
|
3197 #if (NGX_HTTP_CACHE)
|
|
|
3198 {
|
|
|
3199 u_char *p, *last;
|
|
|
3200 ngx_int_t n;
|
|
|
3201
|
|
484
|
3202 if (u->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_CACHE_CONTROL) {
|
|
|
3203 return NGX_OK;
|
|
|
3204 }
|
|
|
3205
|
|
472
|
3206 if (r->cache == NULL) {
|
|
|
3207 return NGX_OK;
|
|
|
3208 }
|
|
|
3209
|
|
|
3210 if (r->cache->valid_sec != 0) {
|
|
|
3211 return NGX_OK;
|
|
|
3212 }
|
|
|
3213
|
|
570
|
3214 p = h->value.data;
|
|
|
3215 last = p + h->value.len;
|
|
|
3216
|
|
|
3217 if (ngx_strlcasestrn(p, last, (u_char *) "no-cache", 8 - 1) != NULL
|
|
|
3218 || ngx_strlcasestrn(p, last, (u_char *) "no-store", 8 - 1) != NULL
|
|
|
3219 || ngx_strlcasestrn(p, last, (u_char *) "private", 7 - 1) != NULL)
|
|
472
|
3220 {
|
|
484
|
3221 u->cacheable = 0;
|
|
472
|
3222 return NGX_OK;
|
|
|
3223 }
|
|
|
3224
|
|
570
|
3225 p = ngx_strlcasestrn(p, last, (u_char *) "max-age=", 8 - 1);
|
|
472
|
3226
|
|
|
3227 if (p == NULL) {
|
|
|
3228 return NGX_OK;
|
|
|
3229 }
|
|
|
3230
|
|
|
3231 n = 0;
|
|
|
3232
|
|
|
3233 for (p += 8; p < last; p++) {
|
|
536
|
3234 if (*p == ',' || *p == ';' || *p == ' ') {
|
|
472
|
3235 break;
|
|
|
3236 }
|
|
|
3237
|
|
|
3238 if (*p >= '0' && *p <= '9') {
|
|
|
3239 n = n * 10 + *p - '0';
|
|
|
3240 continue;
|
|
|
3241 }
|
|
|
3242
|
|
484
|
3243 u->cacheable = 0;
|
|
472
|
3244 return NGX_OK;
|
|
|
3245 }
|
|
|
3246
|
|
|
3247 if (n == 0) {
|
|
484
|
3248 u->cacheable = 0;
|
|
472
|
3249 return NGX_OK;
|
|
|
3250 }
|
|
|
3251
|
|
|
3252 r->cache->valid_sec = ngx_time() + n;
|
|
480
|
3253 }
|
|
|
3254 #endif
|
|
|
3255
|
|
58
|
3256 return NGX_OK;
|
|
|
3257 }
|
|
|
3258
|
|
|
3259
|
|
|
3260 static ngx_int_t
|
|
472
|
3261 ngx_http_upstream_process_expires(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
58
|
3262 ngx_uint_t offset)
|
|
|
3263 {
|
|
484
|
3264 ngx_http_upstream_t *u;
|
|
|
3265
|
|
|
3266 u = r->upstream;
|
|
|
3267 u->headers_in.expires = h;
|
|
480
|
3268
|
|
|
3269 #if (NGX_HTTP_CACHE)
|
|
|
3270 {
|
|
472
|
3271 time_t expires;
|
|
|
3272
|
|
484
|
3273 if (u->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_EXPIRES) {
|
|
|
3274 return NGX_OK;
|
|
|
3275 }
|
|
|
3276
|
|
472
|
3277 if (r->cache == NULL) {
|
|
|
3278 return NGX_OK;
|
|
|
3279 }
|
|
|
3280
|
|
|
3281 if (r->cache->valid_sec != 0) {
|
|
|
3282 return NGX_OK;
|
|
|
3283 }
|
|
|
3284
|
|
|
3285 expires = ngx_http_parse_time(h->value.data, h->value.len);
|
|
|
3286
|
|
|
3287 if (expires == NGX_ERROR || expires < ngx_time()) {
|
|
484
|
3288 u->cacheable = 0;
|
|
472
|
3289 return NGX_OK;
|
|
|
3290 }
|
|
|
3291
|
|
|
3292 r->cache->valid_sec = expires;
|
|
480
|
3293 }
|
|
|
3294 #endif
|
|
472
|
3295
|
|
|
3296 return NGX_OK;
|
|
|
3297 }
|
|
|
3298
|
|
|
3299
|
|
|
3300 static ngx_int_t
|
|
|
3301 ngx_http_upstream_process_accel_expires(ngx_http_request_t *r,
|
|
|
3302 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
3303 {
|
|
484
|
3304 ngx_http_upstream_t *u;
|
|
|
3305
|
|
|
3306 u = r->upstream;
|
|
|
3307 u->headers_in.x_accel_expires = h;
|
|
480
|
3308
|
|
|
3309 #if (NGX_HTTP_CACHE)
|
|
|
3310 {
|
|
472
|
3311 u_char *p;
|
|
|
3312 size_t len;
|
|
|
3313 ngx_int_t n;
|
|
|
3314
|
|
484
|
3315 if (u->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_XA_EXPIRES) {
|
|
|
3316 return NGX_OK;
|
|
|
3317 }
|
|
|
3318
|
|
472
|
3319 if (r->cache == NULL) {
|
|
|
3320 return NGX_OK;
|
|
|
3321 }
|
|
|
3322
|
|
|
3323 len = h->value.len;
|
|
|
3324 p = h->value.data;
|
|
|
3325
|
|
|
3326 if (p[0] != '@') {
|
|
|
3327 n = ngx_atoi(p, len);
|
|
|
3328
|
|
|
3329 switch (n) {
|
|
|
3330 case 0:
|
|
484
|
3331 u->cacheable = 0;
|
|
668
|
3332 /* fall through */
|
|
|
3333
|
|
472
|
3334 case NGX_ERROR:
|
|
|
3335 return NGX_OK;
|
|
|
3336
|
|
|
3337 default:
|
|
|
3338 r->cache->valid_sec = ngx_time() + n;
|
|
|
3339 return NGX_OK;
|
|
|
3340 }
|
|
|
3341 }
|
|
|
3342
|
|
|
3343 p++;
|
|
|
3344 len--;
|
|
|
3345
|
|
|
3346 n = ngx_atoi(p, len);
|
|
|
3347
|
|
|
3348 if (n != NGX_ERROR) {
|
|
|
3349 r->cache->valid_sec = n;
|
|
|
3350 }
|
|
480
|
3351 }
|
|
|
3352 #endif
|
|
472
|
3353
|
|
58
|
3354 return NGX_OK;
|
|
|
3355 }
|
|
|
3356
|
|
|
3357
|
|
|
3358 static ngx_int_t
|
|
76
|
3359 ngx_http_upstream_process_limit_rate(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3360 ngx_uint_t offset)
|
|
126
|
3361 {
|
|
644
|
3362 ngx_int_t n;
|
|
|
3363 ngx_http_upstream_t *u;
|
|
|
3364
|
|
|
3365 u = r->upstream;
|
|
|
3366 u->headers_in.x_accel_limit_rate = h;
|
|
|
3367
|
|
|
3368 if (u->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_XA_LIMIT_RATE) {
|
|
|
3369 return NGX_OK;
|
|
|
3370 }
|
|
76
|
3371
|
|
|
3372 n = ngx_atoi(h->value.data, h->value.len);
|
|
|
3373
|
|
|
3374 if (n != NGX_ERROR) {
|
|
|
3375 r->limit_rate = (size_t) n;
|
|
|
3376 }
|
|
|
3377
|
|
|
3378 return NGX_OK;
|
|
|
3379 }
|
|
|
3380
|
|
|
3381
|
|
|
3382 static ngx_int_t
|
|
198
|
3383 ngx_http_upstream_process_buffering(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3384 ngx_uint_t offset)
|
|
|
3385 {
|
|
644
|
3386 u_char c0, c1, c2;
|
|
|
3387 ngx_http_upstream_t *u;
|
|
|
3388
|
|
|
3389 u = r->upstream;
|
|
|
3390
|
|
|
3391 if (u->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_XA_BUFFERING) {
|
|
|
3392 return NGX_OK;
|
|
|
3393 }
|
|
|
3394
|
|
|
3395 if (u->conf->change_buffering) {
|
|
198
|
3396
|
|
|
3397 if (h->value.len == 2) {
|
|
|
3398 c0 = ngx_tolower(h->value.data[0]);
|
|
|
3399 c1 = ngx_tolower(h->value.data[1]);
|
|
|
3400
|
|
|
3401 if (c0 == 'n' && c1 == 'o') {
|
|
644
|
3402 u->buffering = 0;
|
|
198
|
3403 }
|
|
|
3404
|
|
|
3405 } else if (h->value.len == 3) {
|
|
|
3406 c0 = ngx_tolower(h->value.data[0]);
|
|
|
3407 c1 = ngx_tolower(h->value.data[1]);
|
|
|
3408 c2 = ngx_tolower(h->value.data[2]);
|
|
|
3409
|
|
|
3410 if (c0 == 'y' && c1 == 'e' && c2 == 's') {
|
|
644
|
3411 u->buffering = 1;
|
|
198
|
3412 }
|
|
|
3413 }
|
|
|
3414 }
|
|
|
3415
|
|
|
3416 return NGX_OK;
|
|
|
3417 }
|
|
|
3418
|
|
|
3419
|
|
|
3420 static ngx_int_t
|
|
206
|
3421 ngx_http_upstream_process_charset(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3422 ngx_uint_t offset)
|
|
|
3423 {
|
|
644
|
3424 if (r->upstream->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_XA_CHARSET) {
|
|
|
3425 return NGX_OK;
|
|
|
3426 }
|
|
|
3427
|
|
206
|
3428 r->headers_out.override_charset = &h->value;
|
|
|
3429
|
|
|
3430 return NGX_OK;
|
|
|
3431 }
|
|
|
3432
|
|
|
3433
|
|
|
3434 static ngx_int_t
|
|
640
|
3435 ngx_http_upstream_process_connection(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3436 ngx_uint_t offset)
|
|
|
3437 {
|
|
|
3438 r->upstream->headers_in.connection = h;
|
|
|
3439
|
|
|
3440 if (ngx_strlcasestrn(h->value.data, h->value.data + h->value.len,
|
|
|
3441 (u_char *) "close", 5 - 1)
|
|
|
3442 != NULL)
|
|
|
3443 {
|
|
|
3444 r->upstream->headers_in.connection_close = 1;
|
|
|
3445 }
|
|
|
3446
|
|
|
3447 return NGX_OK;
|
|
|
3448 }
|
|
|
3449
|
|
|
3450
|
|
|
3451 static ngx_int_t
|
|
|
3452 ngx_http_upstream_process_transfer_encoding(ngx_http_request_t *r,
|
|
|
3453 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
3454 {
|
|
|
3455 r->upstream->headers_in.transfer_encoding = h;
|
|
|
3456
|
|
|
3457 if (ngx_strlcasestrn(h->value.data, h->value.data + h->value.len,
|
|
|
3458 (u_char *) "chunked", 7 - 1)
|
|
|
3459 != NULL)
|
|
|
3460 {
|
|
|
3461 r->upstream->headers_in.chunked = 1;
|
|
|
3462 }
|
|
|
3463
|
|
|
3464 return NGX_OK;
|
|
|
3465 }
|
|
|
3466
|
|
|
3467
|
|
|
3468 static ngx_int_t
|
|
58
|
3469 ngx_http_upstream_copy_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3470 ngx_uint_t offset)
|
|
|
3471 {
|
|
122
|
3472 ngx_table_elt_t *ho, **ph;
|
|
58
|
3473
|
|
|
3474 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
3475 if (ho == NULL) {
|
|
|
3476 return NGX_ERROR;
|
|
|
3477 }
|
|
|
3478
|
|
|
3479 *ho = *h;
|
|
|
3480
|
|
122
|
3481 if (offset) {
|
|
|
3482 ph = (ngx_table_elt_t **) ((char *) &r->headers_out + offset);
|
|
|
3483 *ph = ho;
|
|
|
3484 }
|
|
|
3485
|
|
58
|
3486 return NGX_OK;
|
|
|
3487 }
|
|
|
3488
|
|
|
3489
|
|
|
3490 static ngx_int_t
|
|
|
3491 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r,
|
|
|
3492 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
3493 {
|
|
|
3494 ngx_array_t *pa;
|
|
|
3495 ngx_table_elt_t *ho, **ph;
|
|
|
3496
|
|
|
3497 pa = (ngx_array_t *) ((char *) &r->headers_out + offset);
|
|
|
3498
|
|
|
3499 if (pa->elts == NULL) {
|
|
|
3500 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK)
|
|
|
3501 {
|
|
|
3502 return NGX_ERROR;
|
|
|
3503 }
|
|
|
3504 }
|
|
|
3505
|
|
|
3506 ph = ngx_array_push(pa);
|
|
|
3507 if (ph == NULL) {
|
|
|
3508 return NGX_ERROR;
|
|
|
3509 }
|
|
|
3510
|
|
|
3511 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
3512 if (ho == NULL) {
|
|
|
3513 return NGX_ERROR;
|
|
|
3514 }
|
|
|
3515
|
|
|
3516 *ho = *h;
|
|
|
3517 *ph = ho;
|
|
|
3518
|
|
|
3519 return NGX_OK;
|
|
|
3520 }
|
|
|
3521
|
|
|
3522
|
|
|
3523 static ngx_int_t
|
|
|
3524 ngx_http_upstream_copy_content_type(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3525 ngx_uint_t offset)
|
|
|
3526 {
|
|
206
|
3527 u_char *p, *last;
|
|
|
3528
|
|
|
3529 r->headers_out.content_type_len = h->value.len;
|
|
58
|
3530 r->headers_out.content_type = h->value;
|
|
494
|
3531 r->headers_out.content_type_lowcase = NULL;
|
|
58
|
3532
|
|
206
|
3533 for (p = h->value.data; *p; p++) {
|
|
|
3534
|
|
|
3535 if (*p != ';') {
|
|
|
3536 continue;
|
|
|
3537 }
|
|
|
3538
|
|
|
3539 last = p;
|
|
|
3540
|
|
|
3541 while (*++p == ' ') { /* void */ }
|
|
|
3542
|
|
372
|
3543 if (*p == '\0') {
|
|
|
3544 return NGX_OK;
|
|
|
3545 }
|
|
|
3546
|
|
286
|
3547 if (ngx_strncasecmp(p, (u_char *) "charset=", 8) != 0) {
|
|
206
|
3548 continue;
|
|
|
3549 }
|
|
|
3550
|
|
|
3551 p += 8;
|
|
|
3552
|
|
|
3553 r->headers_out.content_type_len = last - h->value.data;
|
|
|
3554
|
|
410
|
3555 if (*p == '"') {
|
|
|
3556 p++;
|
|
|
3557 }
|
|
|
3558
|
|
|
3559 last = h->value.data + h->value.len;
|
|
|
3560
|
|
|
3561 if (*(last - 1) == '"') {
|
|
|
3562 last--;
|
|
|
3563 }
|
|
|
3564
|
|
|
3565 r->headers_out.charset.len = last - p;
|
|
206
|
3566 r->headers_out.charset.data = p;
|
|
292
|
3567
|
|
|
3568 return NGX_OK;
|
|
206
|
3569 }
|
|
|
3570
|
|
58
|
3571 return NGX_OK;
|
|
|
3572 }
|
|
|
3573
|
|
|
3574
|
|
|
3575 static ngx_int_t
|
|
464
|
3576 ngx_http_upstream_copy_last_modified(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3577 ngx_uint_t offset)
|
|
|
3578 {
|
|
|
3579 ngx_table_elt_t *ho;
|
|
|
3580
|
|
|
3581 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
3582 if (ho == NULL) {
|
|
|
3583 return NGX_ERROR;
|
|
|
3584 }
|
|
|
3585
|
|
|
3586 *ho = *h;
|
|
|
3587
|
|
510
|
3588 r->headers_out.last_modified = ho;
|
|
|
3589
|
|
464
|
3590 #if (NGX_HTTP_CACHE)
|
|
|
3591
|
|
502
|
3592 if (r->upstream->cacheable) {
|
|
464
|
3593 r->headers_out.last_modified_time = ngx_http_parse_time(h->value.data,
|
|
|
3594 h->value.len);
|
|
|
3595 }
|
|
|
3596
|
|
|
3597 #endif
|
|
|
3598
|
|
|
3599 return NGX_OK;
|
|
|
3600 }
|
|
|
3601
|
|
|
3602
|
|
|
3603 static ngx_int_t
|
|
58
|
3604 ngx_http_upstream_rewrite_location(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3605 ngx_uint_t offset)
|
|
|
3606 {
|
|
|
3607 ngx_int_t rc;
|
|
|
3608 ngx_table_elt_t *ho;
|
|
|
3609
|
|
|
3610 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
3611 if (ho == NULL) {
|
|
|
3612 return NGX_ERROR;
|
|
|
3613 }
|
|
|
3614
|
|
|
3615 *ho = *h;
|
|
|
3616
|
|
|
3617 if (r->upstream->rewrite_redirect) {
|
|
|
3618 rc = r->upstream->rewrite_redirect(r, ho, 0);
|
|
|
3619
|
|
78
|
3620 if (rc == NGX_DECLINED) {
|
|
|
3621 return NGX_OK;
|
|
|
3622 }
|
|
|
3623
|
|
58
|
3624 if (rc == NGX_OK) {
|
|
|
3625 r->headers_out.location = ho;
|
|
|
3626
|
|
|
3627 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
3628 "rewritten location: \"%V\"", &ho->value);
|
|
|
3629 }
|
|
|
3630
|
|
|
3631 return rc;
|
|
|
3632 }
|
|
|
3633
|
|
348
|
3634 if (ho->value.data[0] != '/') {
|
|
|
3635 r->headers_out.location = ho;
|
|
|
3636 }
|
|
|
3637
|
|
58
|
3638 /*
|
|
|
3639 * we do not set r->headers_out.location here to avoid the handling
|
|
|
3640 * the local redirects without a host name by ngx_http_header_filter()
|
|
|
3641 */
|
|
|
3642
|
|
|
3643 return NGX_OK;
|
|
|
3644 }
|
|
|
3645
|
|
|
3646
|
|
|
3647 static ngx_int_t
|
|
|
3648 ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3649 ngx_uint_t offset)
|
|
|
3650 {
|
|
|
3651 u_char *p;
|
|
|
3652 ngx_int_t rc;
|
|
|
3653 ngx_table_elt_t *ho;
|
|
|
3654
|
|
|
3655 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
3656 if (ho == NULL) {
|
|
|
3657 return NGX_ERROR;
|
|
|
3658 }
|
|
|
3659
|
|
|
3660 *ho = *h;
|
|
|
3661
|
|
|
3662 if (r->upstream->rewrite_redirect) {
|
|
|
3663
|
|
340
|
3664 p = ngx_strcasestrn(ho->value.data, "url=", 4 - 1);
|
|
58
|
3665
|
|
|
3666 if (p) {
|
|
|
3667 rc = r->upstream->rewrite_redirect(r, ho, p + 4 - ho->value.data);
|
|
|
3668
|
|
|
3669 } else {
|
|
|
3670 return NGX_OK;
|
|
|
3671 }
|
|
|
3672
|
|
78
|
3673 if (rc == NGX_DECLINED) {
|
|
|
3674 return NGX_OK;
|
|
|
3675 }
|
|
|
3676
|
|
58
|
3677 if (rc == NGX_OK) {
|
|
348
|
3678 r->headers_out.refresh = ho;
|
|
|
3679
|
|
58
|
3680 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
3681 "rewritten refresh: \"%V\"", &ho->value);
|
|
|
3682 }
|
|
|
3683
|
|
|
3684 return rc;
|
|
|
3685 }
|
|
|
3686
|
|
348
|
3687 r->headers_out.refresh = ho;
|
|
|
3688
|
|
58
|
3689 return NGX_OK;
|
|
|
3690 }
|
|
|
3691
|
|
|
3692
|
|
464
|
3693 static ngx_int_t
|
|
662
|
3694 ngx_http_upstream_rewrite_set_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3695 ngx_uint_t offset)
|
|
|
3696 {
|
|
676
|
3697 ngx_int_t rc;
|
|
662
|
3698 ngx_table_elt_t *ho;
|
|
|
3699
|
|
|
3700 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
3701 if (ho == NULL) {
|
|
|
3702 return NGX_ERROR;
|
|
|
3703 }
|
|
|
3704
|
|
|
3705 *ho = *h;
|
|
|
3706
|
|
|
3707 if (r->upstream->rewrite_cookie) {
|
|
676
|
3708 rc = r->upstream->rewrite_cookie(r, ho);
|
|
|
3709
|
|
|
3710 if (rc == NGX_DECLINED) {
|
|
|
3711 return NGX_OK;
|
|
|
3712 }
|
|
|
3713
|
|
|
3714 #if (NGX_DEBUG)
|
|
|
3715 if (rc == NGX_OK) {
|
|
|
3716 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
3717 "rewritten cookie: \"%V\"", &ho->value);
|
|
|
3718 }
|
|
|
3719 #endif
|
|
|
3720
|
|
|
3721 return rc;
|
|
662
|
3722 }
|
|
|
3723
|
|
|
3724 return NGX_OK;
|
|
|
3725 }
|
|
|
3726
|
|
|
3727
|
|
|
3728 static ngx_int_t
|
|
464
|
3729 ngx_http_upstream_copy_allow_ranges(ngx_http_request_t *r,
|
|
|
3730 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
3731 {
|
|
|
3732 ngx_table_elt_t *ho;
|
|
|
3733
|
|
|
3734 #if (NGX_HTTP_CACHE)
|
|
|
3735
|
|
|
3736 if (r->cached) {
|
|
|
3737 r->allow_ranges = 1;
|
|
|
3738 return NGX_OK;
|
|
|
3739
|
|
|
3740 }
|
|
|
3741
|
|
|
3742 #endif
|
|
|
3743
|
|
|
3744 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
3745 if (ho == NULL) {
|
|
|
3746 return NGX_ERROR;
|
|
|
3747 }
|
|
|
3748
|
|
|
3749 *ho = *h;
|
|
|
3750
|
|
510
|
3751 r->headers_out.accept_ranges = ho;
|
|
|
3752
|
|
464
|
3753 return NGX_OK;
|
|
|
3754 }
|
|
|
3755
|
|
|
3756
|
|
58
|
3757 #if (NGX_HTTP_GZIP)
|
|
|
3758
|
|
|
3759 static ngx_int_t
|
|
|
3760 ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r,
|
|
|
3761 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
3762 {
|
|
|
3763 ngx_table_elt_t *ho;
|
|
|
3764
|
|
|
3765 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
3766 if (ho == NULL) {
|
|
|
3767 return NGX_ERROR;
|
|
|
3768 }
|
|
|
3769
|
|
|
3770 *ho = *h;
|
|
|
3771
|
|
|
3772 r->headers_out.content_encoding = ho;
|
|
|
3773
|
|
|
3774 return NGX_OK;
|
|
|
3775 }
|
|
|
3776
|
|
|
3777 #endif
|
|
|
3778
|
|
|
3779
|
|
36
|
3780 static ngx_int_t
|
|
122
|
3781 ngx_http_upstream_add_variables(ngx_conf_t *cf)
|
|
28
|
3782 {
|
|
260
|
3783 ngx_http_variable_t *var, *v;
|
|
28
|
3784
|
|
122
|
3785 for (v = ngx_http_upstream_vars; v->name.len; v++) {
|
|
|
3786 var = ngx_http_add_variable(cf, &v->name, v->flags);
|
|
|
3787 if (var == NULL) {
|
|
|
3788 return NGX_ERROR;
|
|
|
3789 }
|
|
|
3790
|
|
186
|
3791 var->get_handler = v->get_handler;
|
|
122
|
3792 var->data = v->data;
|
|
|
3793 }
|
|
|
3794
|
|
28
|
3795 return NGX_OK;
|
|
|
3796 }
|
|
58
|
3797
|
|
|
3798
|
|
122
|
3799 static ngx_int_t
|
|
298
|
3800 ngx_http_upstream_addr_variable(ngx_http_request_t *r,
|
|
|
3801 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
3802 {
|
|
|
3803 u_char *p;
|
|
|
3804 size_t len;
|
|
|
3805 ngx_uint_t i;
|
|
|
3806 ngx_http_upstream_state_t *state;
|
|
|
3807
|
|
|
3808 v->valid = 1;
|
|
340
|
3809 v->no_cacheable = 0;
|
|
298
|
3810 v->not_found = 0;
|
|
|
3811
|
|
|
3812 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) {
|
|
|
3813 v->not_found = 1;
|
|
|
3814 return NGX_OK;
|
|
|
3815 }
|
|
|
3816
|
|
|
3817 len = 0;
|
|
|
3818 state = r->upstream_states->elts;
|
|
|
3819
|
|
|
3820 for (i = 0; i < r->upstream_states->nelts; i++) {
|
|
|
3821 if (state[i].peer) {
|
|
|
3822 len += state[i].peer->len + 2;
|
|
|
3823
|
|
|
3824 } else {
|
|
|
3825 len += 3;
|
|
|
3826 }
|
|
|
3827 }
|
|
|
3828
|
|
382
|
3829 p = ngx_pnalloc(r->pool, len);
|
|
298
|
3830 if (p == NULL) {
|
|
|
3831 return NGX_ERROR;
|
|
|
3832 }
|
|
|
3833
|
|
|
3834 v->data = p;
|
|
|
3835
|
|
|
3836 i = 0;
|
|
|
3837
|
|
|
3838 for ( ;; ) {
|
|
|
3839 if (state[i].peer) {
|
|
|
3840 p = ngx_cpymem(p, state[i].peer->data, state[i].peer->len);
|
|
|
3841 }
|
|
|
3842
|
|
|
3843 if (++i == r->upstream_states->nelts) {
|
|
|
3844 break;
|
|
|
3845 }
|
|
|
3846
|
|
|
3847 if (state[i].peer) {
|
|
|
3848 *p++ = ',';
|
|
|
3849 *p++ = ' ';
|
|
|
3850
|
|
|
3851 } else {
|
|
|
3852 *p++ = ' ';
|
|
|
3853 *p++ = ':';
|
|
|
3854 *p++ = ' ';
|
|
|
3855
|
|
|
3856 if (++i == r->upstream_states->nelts) {
|
|
|
3857 break;
|
|
|
3858 }
|
|
|
3859
|
|
|
3860 continue;
|
|
|
3861 }
|
|
|
3862 }
|
|
|
3863
|
|
|
3864 v->len = p - v->data;
|
|
|
3865
|
|
|
3866 return NGX_OK;
|
|
|
3867 }
|
|
|
3868
|
|
|
3869
|
|
|
3870 static ngx_int_t
|
|
122
|
3871 ngx_http_upstream_status_variable(ngx_http_request_t *r,
|
|
|
3872 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
3873 {
|
|
|
3874 u_char *p;
|
|
|
3875 size_t len;
|
|
|
3876 ngx_uint_t i;
|
|
|
3877 ngx_http_upstream_state_t *state;
|
|
|
3878
|
|
|
3879 v->valid = 1;
|
|
340
|
3880 v->no_cacheable = 0;
|
|
122
|
3881 v->not_found = 0;
|
|
|
3882
|
|
296
|
3883 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) {
|
|
122
|
3884 v->not_found = 1;
|
|
|
3885 return NGX_OK;
|
|
|
3886 }
|
|
|
3887
|
|
296
|
3888 len = r->upstream_states->nelts * (3 + 2);
|
|
122
|
3889
|
|
382
|
3890 p = ngx_pnalloc(r->pool, len);
|
|
122
|
3891 if (p == NULL) {
|
|
|
3892 return NGX_ERROR;
|
|
|
3893 }
|
|
|
3894
|
|
|
3895 v->data = p;
|
|
|
3896
|
|
|
3897 i = 0;
|
|
296
|
3898 state = r->upstream_states->elts;
|
|
122
|
3899
|
|
|
3900 for ( ;; ) {
|
|
296
|
3901 if (state[i].status) {
|
|
|
3902 p = ngx_sprintf(p, "%ui", state[i].status);
|
|
122
|
3903
|
|
|
3904 } else {
|
|
296
|
3905 *p++ = '-';
|
|
122
|
3906 }
|
|
|
3907
|
|
296
|
3908 if (++i == r->upstream_states->nelts) {
|
|
122
|
3909 break;
|
|
|
3910 }
|
|
|
3911
|
|
296
|
3912 if (state[i].peer) {
|
|
|
3913 *p++ = ',';
|
|
|
3914 *p++ = ' ';
|
|
|
3915
|
|
|
3916 } else {
|
|
|
3917 *p++ = ' ';
|
|
|
3918 *p++ = ':';
|
|
|
3919 *p++ = ' ';
|
|
|
3920
|
|
|
3921 if (++i == r->upstream_states->nelts) {
|
|
|
3922 break;
|
|
|
3923 }
|
|
|
3924
|
|
|
3925 continue;
|
|
|
3926 }
|
|
122
|
3927 }
|
|
|
3928
|
|
|
3929 v->len = p - v->data;
|
|
|
3930
|
|
|
3931 return NGX_OK;
|
|
|
3932 }
|
|
|
3933
|
|
|
3934
|
|
|
3935 static ngx_int_t
|
|
|
3936 ngx_http_upstream_response_time_variable(ngx_http_request_t *r,
|
|
|
3937 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
3938 {
|
|
|
3939 u_char *p;
|
|
|
3940 size_t len;
|
|
|
3941 ngx_uint_t i;
|
|
262
|
3942 ngx_msec_int_t ms;
|
|
122
|
3943 ngx_http_upstream_state_t *state;
|
|
|
3944
|
|
|
3945 v->valid = 1;
|
|
340
|
3946 v->no_cacheable = 0;
|
|
122
|
3947 v->not_found = 0;
|
|
|
3948
|
|
296
|
3949 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) {
|
|
122
|
3950 v->not_found = 1;
|
|
|
3951 return NGX_OK;
|
|
|
3952 }
|
|
|
3953
|
|
296
|
3954 len = r->upstream_states->nelts * (NGX_TIME_T_LEN + 4 + 2);
|
|
122
|
3955
|
|
382
|
3956 p = ngx_pnalloc(r->pool, len);
|
|
122
|
3957 if (p == NULL) {
|
|
|
3958 return NGX_ERROR;
|
|
|
3959 }
|
|
|
3960
|
|
|
3961 v->data = p;
|
|
|
3962
|
|
|
3963 i = 0;
|
|
296
|
3964 state = r->upstream_states->elts;
|
|
122
|
3965
|
|
|
3966 for ( ;; ) {
|
|
296
|
3967 if (state[i].status) {
|
|
346
|
3968 ms = (ngx_msec_int_t)
|
|
|
3969 (state[i].response_sec * 1000 + state[i].response_msec);
|
|
570
|
3970 ms = ngx_max(ms, 0);
|
|
262
|
3971 p = ngx_sprintf(p, "%d.%03d", ms / 1000, ms % 1000);
|
|
296
|
3972
|
|
|
3973 } else {
|
|
|
3974 *p++ = '-';
|
|
122
|
3975 }
|
|
|
3976
|
|
296
|
3977 if (++i == r->upstream_states->nelts) {
|
|
122
|
3978 break;
|
|
|
3979 }
|
|
|
3980
|
|
296
|
3981 if (state[i].peer) {
|
|
|
3982 *p++ = ',';
|
|
|
3983 *p++ = ' ';
|
|
|
3984
|
|
|
3985 } else {
|
|
|
3986 *p++ = ' ';
|
|
|
3987 *p++ = ':';
|
|
|
3988 *p++ = ' ';
|
|
|
3989
|
|
|
3990 if (++i == r->upstream_states->nelts) {
|
|
|
3991 break;
|
|
|
3992 }
|
|
|
3993
|
|
|
3994 continue;
|
|
|
3995 }
|
|
122
|
3996 }
|
|
|
3997
|
|
|
3998 v->len = p - v->data;
|
|
|
3999
|
|
|
4000 return NGX_OK;
|
|
|
4001 }
|
|
|
4002
|
|
|
4003
|
|
430
|
4004 static ngx_int_t
|
|
|
4005 ngx_http_upstream_response_length_variable(ngx_http_request_t *r,
|
|
|
4006 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
4007 {
|
|
|
4008 u_char *p;
|
|
|
4009 size_t len;
|
|
|
4010 ngx_uint_t i;
|
|
|
4011 ngx_http_upstream_state_t *state;
|
|
|
4012
|
|
|
4013 v->valid = 1;
|
|
|
4014 v->no_cacheable = 0;
|
|
|
4015 v->not_found = 0;
|
|
|
4016
|
|
|
4017 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) {
|
|
|
4018 v->not_found = 1;
|
|
|
4019 return NGX_OK;
|
|
|
4020 }
|
|
|
4021
|
|
|
4022 len = r->upstream_states->nelts * (NGX_OFF_T_LEN + 2);
|
|
|
4023
|
|
|
4024 p = ngx_pnalloc(r->pool, len);
|
|
|
4025 if (p == NULL) {
|
|
|
4026 return NGX_ERROR;
|
|
|
4027 }
|
|
|
4028
|
|
|
4029 v->data = p;
|
|
|
4030
|
|
|
4031 i = 0;
|
|
|
4032 state = r->upstream_states->elts;
|
|
|
4033
|
|
|
4034 for ( ;; ) {
|
|
|
4035 p = ngx_sprintf(p, "%O", state[i].response_length);
|
|
|
4036
|
|
|
4037 if (++i == r->upstream_states->nelts) {
|
|
|
4038 break;
|
|
|
4039 }
|
|
|
4040
|
|
|
4041 if (state[i].peer) {
|
|
|
4042 *p++ = ',';
|
|
|
4043 *p++ = ' ';
|
|
|
4044
|
|
|
4045 } else {
|
|
|
4046 *p++ = ' ';
|
|
|
4047 *p++ = ':';
|
|
|
4048 *p++ = ' ';
|
|
|
4049
|
|
|
4050 if (++i == r->upstream_states->nelts) {
|
|
|
4051 break;
|
|
|
4052 }
|
|
|
4053
|
|
|
4054 continue;
|
|
|
4055 }
|
|
|
4056 }
|
|
|
4057
|
|
|
4058 v->len = p - v->data;
|
|
|
4059
|
|
|
4060 return NGX_OK;
|
|
|
4061 }
|
|
|
4062
|
|
|
4063
|
|
296
|
4064 ngx_int_t
|
|
|
4065 ngx_http_upstream_header_variable(ngx_http_request_t *r,
|
|
|
4066 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
4067 {
|
|
|
4068 if (r->upstream == NULL) {
|
|
|
4069 v->not_found = 1;
|
|
|
4070 return NGX_OK;
|
|
|
4071 }
|
|
|
4072
|
|
|
4073 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data,
|
|
|
4074 &r->upstream->headers_in.headers.part,
|
|
|
4075 sizeof("upstream_http_") - 1);
|
|
|
4076 }
|
|
|
4077
|
|
|
4078
|
|
502
|
4079 #if (NGX_HTTP_CACHE)
|
|
|
4080
|
|
|
4081 ngx_int_t
|
|
|
4082 ngx_http_upstream_cache_status(ngx_http_request_t *r,
|
|
|
4083 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
4084 {
|
|
|
4085 ngx_uint_t n;
|
|
|
4086
|
|
|
4087 if (r->upstream == NULL || r->upstream->cache_status == 0) {
|
|
|
4088 v->not_found = 1;
|
|
|
4089 return NGX_OK;
|
|
|
4090 }
|
|
|
4091
|
|
|
4092 n = r->upstream->cache_status - 1;
|
|
|
4093
|
|
|
4094 v->valid = 1;
|
|
|
4095 v->no_cacheable = 0;
|
|
|
4096 v->not_found = 0;
|
|
|
4097 v->len = ngx_http_cache_status[n].len;
|
|
|
4098 v->data = ngx_http_cache_status[n].data;
|
|
|
4099
|
|
|
4100 return NGX_OK;
|
|
|
4101 }
|
|
|
4102
|
|
|
4103 #endif
|
|
|
4104
|
|
|
4105
|
|
200
|
4106 static char *
|
|
|
4107 ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy)
|
|
|
4108 {
|
|
260
|
4109 char *rv;
|
|
|
4110 void *mconf;
|
|
|
4111 ngx_str_t *value;
|
|
|
4112 ngx_url_t u;
|
|
|
4113 ngx_uint_t m;
|
|
|
4114 ngx_conf_t pcf;
|
|
|
4115 ngx_http_module_t *module;
|
|
|
4116 ngx_http_conf_ctx_t *ctx, *http_ctx;
|
|
|
4117 ngx_http_upstream_srv_conf_t *uscf;
|
|
|
4118
|
|
|
4119 ngx_memzero(&u, sizeof(ngx_url_t));
|
|
|
4120
|
|
|
4121 value = cf->args->elts;
|
|
|
4122 u.host = value[1];
|
|
|
4123 u.no_resolve = 1;
|
|
|
4124
|
|
|
4125 uscf = ngx_http_upstream_add(cf, &u, NGX_HTTP_UPSTREAM_CREATE
|
|
|
4126 |NGX_HTTP_UPSTREAM_WEIGHT
|
|
|
4127 |NGX_HTTP_UPSTREAM_MAX_FAILS
|
|
|
4128 |NGX_HTTP_UPSTREAM_FAIL_TIMEOUT
|
|
|
4129 |NGX_HTTP_UPSTREAM_DOWN
|
|
|
4130 |NGX_HTTP_UPSTREAM_BACKUP);
|
|
|
4131 if (uscf == NULL) {
|
|
|
4132 return NGX_CONF_ERROR;
|
|
|
4133 }
|
|
|
4134
|
|
200
|
4135
|
|
|
4136 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t));
|
|
|
4137 if (ctx == NULL) {
|
|
|
4138 return NGX_CONF_ERROR;
|
|
|
4139 }
|
|
|
4140
|
|
260
|
4141 http_ctx = cf->ctx;
|
|
|
4142 ctx->main_conf = http_ctx->main_conf;
|
|
200
|
4143
|
|
|
4144 /* the upstream{}'s srv_conf */
|
|
|
4145
|
|
|
4146 ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
4147 if (ctx->srv_conf == NULL) {
|
|
|
4148 return NGX_CONF_ERROR;
|
|
|
4149 }
|
|
|
4150
|
|
|
4151 ctx->srv_conf[ngx_http_upstream_module.ctx_index] = uscf;
|
|
|
4152
|
|
260
|
4153 uscf->srv_conf = ctx->srv_conf;
|
|
|
4154
|
|
200
|
4155
|
|
|
4156 /* the upstream{}'s loc_conf */
|
|
|
4157
|
|
|
4158 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
4159 if (ctx->loc_conf == NULL) {
|
|
|
4160 return NGX_CONF_ERROR;
|
|
|
4161 }
|
|
|
4162
|
|
|
4163 for (m = 0; ngx_modules[m]; m++) {
|
|
|
4164 if (ngx_modules[m]->type != NGX_HTTP_MODULE) {
|
|
|
4165 continue;
|
|
|
4166 }
|
|
|
4167
|
|
|
4168 module = ngx_modules[m]->ctx;
|
|
|
4169
|
|
260
|
4170 if (module->create_srv_conf) {
|
|
|
4171 mconf = module->create_srv_conf(cf);
|
|
|
4172 if (mconf == NULL) {
|
|
|
4173 return NGX_CONF_ERROR;
|
|
|
4174 }
|
|
|
4175
|
|
|
4176 ctx->srv_conf[ngx_modules[m]->ctx_index] = mconf;
|
|
|
4177 }
|
|
|
4178
|
|
200
|
4179 if (module->create_loc_conf) {
|
|
|
4180 mconf = module->create_loc_conf(cf);
|
|
|
4181 if (mconf == NULL) {
|
|
|
4182 return NGX_CONF_ERROR;
|
|
|
4183 }
|
|
|
4184
|
|
|
4185 ctx->loc_conf[ngx_modules[m]->ctx_index] = mconf;
|
|
|
4186 }
|
|
|
4187 }
|
|
|
4188
|
|
|
4189
|
|
|
4190 /* parse inside upstream{} */
|
|
|
4191
|
|
|
4192 pcf = *cf;
|
|
|
4193 cf->ctx = ctx;
|
|
|
4194 cf->cmd_type = NGX_HTTP_UPS_CONF;
|
|
|
4195
|
|
|
4196 rv = ngx_conf_parse(cf, NULL);
|
|
|
4197
|
|
|
4198 *cf = pcf;
|
|
|
4199
|
|
|
4200 if (rv != NGX_CONF_OK) {
|
|
|
4201 return rv;
|
|
|
4202 }
|
|
|
4203
|
|
|
4204 if (uscf->servers == NULL) {
|
|
|
4205 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
4206 "no servers are inside upstream");
|
|
|
4207 return NGX_CONF_ERROR;
|
|
|
4208 }
|
|
|
4209
|
|
|
4210 return rv;
|
|
|
4211 }
|
|
|
4212
|
|
|
4213
|
|
|
4214 static char *
|
|
|
4215 ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
4216 {
|
|
|
4217 ngx_http_upstream_srv_conf_t *uscf = conf;
|
|
|
4218
|
|
260
|
4219 time_t fail_timeout;
|
|
|
4220 ngx_str_t *value, s;
|
|
|
4221 ngx_url_t u;
|
|
|
4222 ngx_int_t weight, max_fails;
|
|
|
4223 ngx_uint_t i;
|
|
|
4224 ngx_http_upstream_server_t *us;
|
|
200
|
4225
|
|
|
4226 if (uscf->servers == NULL) {
|
|
260
|
4227 uscf->servers = ngx_array_create(cf->pool, 4,
|
|
|
4228 sizeof(ngx_http_upstream_server_t));
|
|
200
|
4229 if (uscf->servers == NULL) {
|
|
|
4230 return NGX_CONF_ERROR;
|
|
|
4231 }
|
|
|
4232 }
|
|
|
4233
|
|
260
|
4234 us = ngx_array_push(uscf->servers);
|
|
|
4235 if (us == NULL) {
|
|
200
|
4236 return NGX_CONF_ERROR;
|
|
|
4237 }
|
|
|
4238
|
|
260
|
4239 ngx_memzero(us, sizeof(ngx_http_upstream_server_t));
|
|
|
4240
|
|
200
|
4241 value = cf->args->elts;
|
|
|
4242
|
|
|
4243 ngx_memzero(&u, sizeof(ngx_url_t));
|
|
|
4244
|
|
|
4245 u.url = value[1];
|
|
266
|
4246 u.default_port = 80;
|
|
200
|
4247
|
|
340
|
4248 if (ngx_parse_url(cf->pool, &u) != NGX_OK) {
|
|
200
|
4249 if (u.err) {
|
|
|
4250 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
4251 "%s in upstream \"%V\"", u.err, &u.url);
|
|
|
4252 }
|
|
|
4253
|
|
|
4254 return NGX_CONF_ERROR;
|
|
|
4255 }
|
|
|
4256
|
|
212
|
4257 weight = 1;
|
|
260
|
4258 max_fails = 1;
|
|
|
4259 fail_timeout = 10;
|
|
|
4260
|
|
|
4261 for (i = 2; i < cf->args->nelts; i++) {
|
|
|
4262
|
|
|
4263 if (ngx_strncmp(value[i].data, "weight=", 7) == 0) {
|
|
|
4264
|
|
|
4265 if (!(uscf->flags & NGX_HTTP_UPSTREAM_WEIGHT)) {
|
|
|
4266 goto invalid;
|
|
|
4267 }
|
|
|
4268
|
|
|
4269 weight = ngx_atoi(&value[i].data[7], value[i].len - 7);
|
|
212
|
4270
|
|
|
4271 if (weight == NGX_ERROR || weight == 0) {
|
|
|
4272 goto invalid;
|
|
|
4273 }
|
|
|
4274
|
|
260
|
4275 continue;
|
|
|
4276 }
|
|
|
4277
|
|
|
4278 if (ngx_strncmp(value[i].data, "max_fails=", 10) == 0) {
|
|
|
4279
|
|
|
4280 if (!(uscf->flags & NGX_HTTP_UPSTREAM_MAX_FAILS)) {
|
|
|
4281 goto invalid;
|
|
|
4282 }
|
|
|
4283
|
|
|
4284 max_fails = ngx_atoi(&value[i].data[10], value[i].len - 10);
|
|
|
4285
|
|
|
4286 if (max_fails == NGX_ERROR) {
|
|
|
4287 goto invalid;
|
|
|
4288 }
|
|
|
4289
|
|
|
4290 continue;
|
|
212
|
4291 }
|
|
260
|
4292
|
|
|
4293 if (ngx_strncmp(value[i].data, "fail_timeout=", 13) == 0) {
|
|
|
4294
|
|
|
4295 if (!(uscf->flags & NGX_HTTP_UPSTREAM_FAIL_TIMEOUT)) {
|
|
|
4296 goto invalid;
|
|
|
4297 }
|
|
|
4298
|
|
|
4299 s.len = value[i].len - 13;
|
|
|
4300 s.data = &value[i].data[13];
|
|
|
4301
|
|
|
4302 fail_timeout = ngx_parse_time(&s, 1);
|
|
|
4303
|
|
662
|
4304 if (fail_timeout == (time_t) NGX_ERROR) {
|
|
260
|
4305 goto invalid;
|
|
|
4306 }
|
|
|
4307
|
|
|
4308 continue;
|
|
|
4309 }
|
|
|
4310
|
|
326
|
4311 if (ngx_strncmp(value[i].data, "backup", 6) == 0) {
|
|
|
4312
|
|
|
4313 if (!(uscf->flags & NGX_HTTP_UPSTREAM_BACKUP)) {
|
|
|
4314 goto invalid;
|
|
|
4315 }
|
|
|
4316
|
|
|
4317 us->backup = 1;
|
|
|
4318
|
|
|
4319 continue;
|
|
|
4320 }
|
|
|
4321
|
|
260
|
4322 if (ngx_strncmp(value[i].data, "down", 4) == 0) {
|
|
|
4323
|
|
|
4324 if (!(uscf->flags & NGX_HTTP_UPSTREAM_DOWN)) {
|
|
|
4325 goto invalid;
|
|
|
4326 }
|
|
|
4327
|
|
|
4328 us->down = 1;
|
|
|
4329
|
|
|
4330 continue;
|
|
|
4331 }
|
|
|
4332
|
|
|
4333 goto invalid;
|
|
212
|
4334 }
|
|
|
4335
|
|
260
|
4336 us->addrs = u.addrs;
|
|
|
4337 us->naddrs = u.naddrs;
|
|
|
4338 us->weight = weight;
|
|
|
4339 us->max_fails = max_fails;
|
|
|
4340 us->fail_timeout = fail_timeout;
|
|
200
|
4341
|
|
|
4342 return NGX_CONF_OK;
|
|
212
|
4343
|
|
|
4344 invalid:
|
|
|
4345
|
|
260
|
4346 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
4347 "invalid parameter \"%V\"", &value[i]);
|
|
212
|
4348
|
|
|
4349 return NGX_CONF_ERROR;
|
|
200
|
4350 }
|
|
|
4351
|
|
|
4352
|
|
|
4353 ngx_http_upstream_srv_conf_t *
|
|
260
|
4354 ngx_http_upstream_add(ngx_conf_t *cf, ngx_url_t *u, ngx_uint_t flags)
|
|
200
|
4355 {
|
|
|
4356 ngx_uint_t i;
|
|
260
|
4357 ngx_http_upstream_server_t *us;
|
|
200
|
4358 ngx_http_upstream_srv_conf_t *uscf, **uscfp;
|
|
|
4359 ngx_http_upstream_main_conf_t *umcf;
|
|
|
4360
|
|
260
|
4361 if (!(flags & NGX_HTTP_UPSTREAM_CREATE)) {
|
|
|
4362
|
|
340
|
4363 if (ngx_parse_url(cf->pool, u) != NGX_OK) {
|
|
200
|
4364 if (u->err) {
|
|
|
4365 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
4366 "%s in upstream \"%V\"", u->err, &u->url);
|
|
|
4367 }
|
|
|
4368
|
|
|
4369 return NULL;
|
|
|
4370 }
|
|
|
4371 }
|
|
|
4372
|
|
|
4373 umcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_upstream_module);
|
|
|
4374
|
|
|
4375 uscfp = umcf->upstreams.elts;
|
|
|
4376
|
|
|
4377 for (i = 0; i < umcf->upstreams.nelts; i++) {
|
|
266
|
4378
|
|
|
4379 if (uscfp[i]->host.len != u->host.len
|
|
260
|
4380 || ngx_strncasecmp(uscfp[i]->host.data, u->host.data, u->host.len)
|
|
|
4381 != 0)
|
|
|
4382 {
|
|
200
|
4383 continue;
|
|
|
4384 }
|
|
|
4385
|
|
260
|
4386 if ((flags & NGX_HTTP_UPSTREAM_CREATE)
|
|
|
4387 && (uscfp[i]->flags & NGX_HTTP_UPSTREAM_CREATE))
|
|
200
|
4388 {
|
|
260
|
4389 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
4390 "duplicate upstream \"%V\"", &u->host);
|
|
|
4391 return NULL;
|
|
200
|
4392 }
|
|
260
|
4393
|
|
266
|
4394 if ((uscfp[i]->flags & NGX_HTTP_UPSTREAM_CREATE) && u->port) {
|
|
260
|
4395 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
266
|
4396 "upstream \"%V\" may not have port %d",
|
|
|
4397 &u->host, u->port);
|
|
|
4398 return NULL;
|
|
|
4399 }
|
|
|
4400
|
|
|
4401 if ((flags & NGX_HTTP_UPSTREAM_CREATE) && uscfp[i]->port) {
|
|
|
4402 ngx_log_error(NGX_LOG_WARN, cf->log, 0,
|
|
|
4403 "upstream \"%V\" may not have port %d in %s:%ui",
|
|
|
4404 &u->host, uscfp[i]->port,
|
|
336
|
4405 uscfp[i]->file_name, uscfp[i]->line);
|
|
266
|
4406 return NULL;
|
|
|
4407 }
|
|
|
4408
|
|
|
4409 if (uscfp[i]->port != u->port) {
|
|
|
4410 continue;
|
|
260
|
4411 }
|
|
|
4412
|
|
324
|
4413 if (uscfp[i]->default_port && u->default_port
|
|
|
4414 && uscfp[i]->default_port != u->default_port)
|
|
|
4415 {
|
|
|
4416 continue;
|
|
|
4417 }
|
|
|
4418
|
|
642
|
4419 if (flags & NGX_HTTP_UPSTREAM_CREATE) {
|
|
|
4420 uscfp[i]->flags = flags;
|
|
|
4421 }
|
|
|
4422
|
|
260
|
4423 return uscfp[i];
|
|
200
|
4424 }
|
|
|
4425
|
|
|
4426 uscf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_srv_conf_t));
|
|
|
4427 if (uscf == NULL) {
|
|
|
4428 return NULL;
|
|
|
4429 }
|
|
|
4430
|
|
260
|
4431 uscf->flags = flags;
|
|
200
|
4432 uscf->host = u->host;
|
|
336
|
4433 uscf->file_name = cf->conf_file->file.name.data;
|
|
200
|
4434 uscf->line = cf->conf_file->line;
|
|
266
|
4435 uscf->port = u->port;
|
|
|
4436 uscf->default_port = u->default_port;
|
|
260
|
4437
|
|
|
4438 if (u->naddrs == 1) {
|
|
|
4439 uscf->servers = ngx_array_create(cf->pool, 1,
|
|
|
4440 sizeof(ngx_http_upstream_server_t));
|
|
|
4441 if (uscf->servers == NULL) {
|
|
682
|
4442 return NULL;
|
|
260
|
4443 }
|
|
|
4444
|
|
|
4445 us = ngx_array_push(uscf->servers);
|
|
|
4446 if (us == NULL) {
|
|
682
|
4447 return NULL;
|
|
260
|
4448 }
|
|
|
4449
|
|
|
4450 ngx_memzero(us, sizeof(ngx_http_upstream_server_t));
|
|
|
4451
|
|
|
4452 us->addrs = u->addrs;
|
|
682
|
4453 us->naddrs = 1;
|
|
260
|
4454 }
|
|
200
|
4455
|
|
|
4456 uscfp = ngx_array_push(&umcf->upstreams);
|
|
|
4457 if (uscfp == NULL) {
|
|
|
4458 return NULL;
|
|
|
4459 }
|
|
|
4460
|
|
|
4461 *uscfp = uscf;
|
|
|
4462
|
|
|
4463 return uscf;
|
|
|
4464 }
|
|
|
4465
|
|
|
4466
|
|
540
|
4467 char *
|
|
558
|
4468 ngx_http_upstream_bind_set_slot(ngx_conf_t *cf, ngx_command_t *cmd,
|
|
540
|
4469 void *conf)
|
|
|
4470 {
|
|
|
4471 char *p = conf;
|
|
|
4472
|
|
|
4473 ngx_int_t rc;
|
|
|
4474 ngx_str_t *value;
|
|
|
4475 ngx_addr_t **paddr;
|
|
|
4476
|
|
|
4477 paddr = (ngx_addr_t **) (p + cmd->offset);
|
|
|
4478
|
|
|
4479 *paddr = ngx_palloc(cf->pool, sizeof(ngx_addr_t));
|
|
|
4480 if (*paddr == NULL) {
|
|
|
4481 return NGX_CONF_ERROR;
|
|
|
4482 }
|
|
|
4483
|
|
|
4484 value = cf->args->elts;
|
|
|
4485
|
|
|
4486 rc = ngx_parse_addr(cf->pool, *paddr, value[1].data, value[1].len);
|
|
|
4487
|
|
|
4488 switch (rc) {
|
|
|
4489 case NGX_OK:
|
|
|
4490 (*paddr)->name = value[1];
|
|
|
4491 return NGX_CONF_OK;
|
|
|
4492
|
|
|
4493 case NGX_DECLINED:
|
|
|
4494 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
4495 "invalid address \"%V\"", &value[1]);
|
|
668
|
4496 /* fall through */
|
|
|
4497
|
|
540
|
4498 default:
|
|
|
4499 return NGX_CONF_ERROR;
|
|
|
4500 }
|
|
|
4501 }
|
|
|
4502
|
|
|
4503
|
|
654
|
4504 char *
|
|
|
4505 ngx_http_upstream_param_set_slot(ngx_conf_t *cf, ngx_command_t *cmd,
|
|
|
4506 void *conf)
|
|
|
4507 {
|
|
|
4508 char *p = conf;
|
|
|
4509
|
|
|
4510 ngx_str_t *value;
|
|
|
4511 ngx_array_t **a;
|
|
|
4512 ngx_http_upstream_param_t *param;
|
|
|
4513
|
|
|
4514 a = (ngx_array_t **) (p + cmd->offset);
|
|
|
4515
|
|
|
4516 if (*a == NULL) {
|
|
|
4517 *a = ngx_array_create(cf->pool, 4, sizeof(ngx_http_upstream_param_t));
|
|
|
4518 if (*a == NULL) {
|
|
|
4519 return NGX_CONF_ERROR;
|
|
|
4520 }
|
|
|
4521 }
|
|
|
4522
|
|
|
4523 param = ngx_array_push(*a);
|
|
|
4524 if (param == NULL) {
|
|
|
4525 return NGX_CONF_ERROR;
|
|
|
4526 }
|
|
|
4527
|
|
|
4528 value = cf->args->elts;
|
|
|
4529
|
|
|
4530 param->key = value[1];
|
|
|
4531 param->value = value[2];
|
|
|
4532 param->skip_empty = 0;
|
|
|
4533
|
|
|
4534 if (cf->args->nelts == 4) {
|
|
|
4535 if (ngx_strcmp(value[3].data, "if_not_empty") != 0) {
|
|
|
4536 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
4537 "invalid parameter \"%V\"", &value[3]);
|
|
|
4538 return NGX_CONF_ERROR;
|
|
|
4539 }
|
|
|
4540
|
|
|
4541 param->skip_empty = 1;
|
|
|
4542 }
|
|
|
4543
|
|
|
4544 return NGX_CONF_OK;
|
|
|
4545 }
|
|
|
4546
|
|
|
4547
|
|
356
|
4548 ngx_int_t
|
|
|
4549 ngx_http_upstream_hide_headers_hash(ngx_conf_t *cf,
|
|
|
4550 ngx_http_upstream_conf_t *conf, ngx_http_upstream_conf_t *prev,
|
|
|
4551 ngx_str_t *default_hide_headers, ngx_hash_init_t *hash)
|
|
|
4552 {
|
|
|
4553 ngx_str_t *h;
|
|
|
4554 ngx_uint_t i, j;
|
|
|
4555 ngx_array_t hide_headers;
|
|
|
4556 ngx_hash_key_t *hk;
|
|
|
4557
|
|
|
4558 if (conf->hide_headers == NGX_CONF_UNSET_PTR
|
|
|
4559 && conf->pass_headers == NGX_CONF_UNSET_PTR)
|
|
|
4560 {
|
|
682
|
4561 conf->hide_headers = prev->hide_headers;
|
|
|
4562 conf->pass_headers = prev->pass_headers;
|
|
|
4563
|
|
356
|
4564 conf->hide_headers_hash = prev->hide_headers_hash;
|
|
|
4565
|
|
498
|
4566 if (conf->hide_headers_hash.buckets
|
|
502
|
4567 #if (NGX_HTTP_CACHE)
|
|
|
4568 && ((conf->cache == NULL) == (prev->cache == NULL))
|
|
|
4569 #endif
|
|
|
4570 )
|
|
498
|
4571 {
|
|
356
|
4572 return NGX_OK;
|
|
|
4573 }
|
|
|
4574
|
|
|
4575 } else {
|
|
|
4576 if (conf->hide_headers == NGX_CONF_UNSET_PTR) {
|
|
|
4577 conf->hide_headers = prev->hide_headers;
|
|
|
4578 }
|
|
|
4579
|
|
|
4580 if (conf->pass_headers == NGX_CONF_UNSET_PTR) {
|
|
|
4581 conf->pass_headers = prev->pass_headers;
|
|
|
4582 }
|
|
|
4583 }
|
|
|
4584
|
|
|
4585 if (ngx_array_init(&hide_headers, cf->temp_pool, 4, sizeof(ngx_hash_key_t))
|
|
|
4586 != NGX_OK)
|
|
|
4587 {
|
|
|
4588 return NGX_ERROR;
|
|
|
4589 }
|
|
|
4590
|
|
|
4591 for (h = default_hide_headers; h->len; h++) {
|
|
|
4592 hk = ngx_array_push(&hide_headers);
|
|
|
4593 if (hk == NULL) {
|
|
|
4594 return NGX_ERROR;
|
|
|
4595 }
|
|
|
4596
|
|
|
4597 hk->key = *h;
|
|
|
4598 hk->key_hash = ngx_hash_key_lc(h->data, h->len);
|
|
|
4599 hk->value = (void *) 1;
|
|
|
4600 }
|
|
|
4601
|
|
|
4602 if (conf->hide_headers != NGX_CONF_UNSET_PTR) {
|
|
|
4603
|
|
|
4604 h = conf->hide_headers->elts;
|
|
|
4605
|
|
|
4606 for (i = 0; i < conf->hide_headers->nelts; i++) {
|
|
|
4607
|
|
|
4608 hk = hide_headers.elts;
|
|
|
4609
|
|
|
4610 for (j = 0; j < hide_headers.nelts; j++) {
|
|
|
4611 if (ngx_strcasecmp(h[i].data, hk[j].key.data) == 0) {
|
|
|
4612 goto exist;
|
|
|
4613 }
|
|
|
4614 }
|
|
|
4615
|
|
|
4616 hk = ngx_array_push(&hide_headers);
|
|
|
4617 if (hk == NULL) {
|
|
|
4618 return NGX_ERROR;
|
|
|
4619 }
|
|
|
4620
|
|
|
4621 hk->key = h[i];
|
|
|
4622 hk->key_hash = ngx_hash_key_lc(h[i].data, h[i].len);
|
|
|
4623 hk->value = (void *) 1;
|
|
|
4624
|
|
|
4625 exist:
|
|
|
4626
|
|
|
4627 continue;
|
|
|
4628 }
|
|
|
4629 }
|
|
|
4630
|
|
|
4631 if (conf->pass_headers != NGX_CONF_UNSET_PTR) {
|
|
|
4632
|
|
|
4633 h = conf->pass_headers->elts;
|
|
|
4634 hk = hide_headers.elts;
|
|
|
4635
|
|
|
4636 for (i = 0; i < conf->pass_headers->nelts; i++) {
|
|
|
4637 for (j = 0; j < hide_headers.nelts; j++) {
|
|
|
4638
|
|
|
4639 if (hk[j].key.data == NULL) {
|
|
|
4640 continue;
|
|
|
4641 }
|
|
|
4642
|
|
|
4643 if (ngx_strcasecmp(h[i].data, hk[j].key.data) == 0) {
|
|
|
4644 hk[j].key.data = NULL;
|
|
|
4645 break;
|
|
|
4646 }
|
|
|
4647 }
|
|
|
4648 }
|
|
|
4649 }
|
|
|
4650
|
|
|
4651 hash->hash = &conf->hide_headers_hash;
|
|
|
4652 hash->key = ngx_hash_key_lc;
|
|
|
4653 hash->pool = cf->pool;
|
|
|
4654 hash->temp_pool = NULL;
|
|
|
4655
|
|
|
4656 return ngx_hash_init(hash, hide_headers.elts, hide_headers.nelts);
|
|
|
4657 }
|
|
|
4658
|
|
|
4659
|
|
58
|
4660 static void *
|
|
|
4661 ngx_http_upstream_create_main_conf(ngx_conf_t *cf)
|
|
|
4662 {
|
|
|
4663 ngx_http_upstream_main_conf_t *umcf;
|
|
|
4664
|
|
|
4665 umcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_main_conf_t));
|
|
|
4666 if (umcf == NULL) {
|
|
|
4667 return NULL;
|
|
|
4668 }
|
|
|
4669
|
|
200
|
4670 if (ngx_array_init(&umcf->upstreams, cf->pool, 4,
|
|
|
4671 sizeof(ngx_http_upstream_srv_conf_t *))
|
|
|
4672 != NGX_OK)
|
|
|
4673 {
|
|
496
|
4674 return NULL;
|
|
200
|
4675 }
|
|
|
4676
|
|
58
|
4677 return umcf;
|
|
|
4678 }
|
|
|
4679
|
|
|
4680
|
|
|
4681 static char *
|
|
200
|
4682 ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf)
|
|
58
|
4683 {
|
|
|
4684 ngx_http_upstream_main_conf_t *umcf = conf;
|
|
|
4685
|
|
200
|
4686 ngx_uint_t i;
|
|
|
4687 ngx_array_t headers_in;
|
|
|
4688 ngx_hash_key_t *hk;
|
|
|
4689 ngx_hash_init_t hash;
|
|
260
|
4690 ngx_http_upstream_init_pt init;
|
|
200
|
4691 ngx_http_upstream_header_t *header;
|
|
|
4692 ngx_http_upstream_srv_conf_t **uscfp;
|
|
|
4693
|
|
|
4694 uscfp = umcf->upstreams.elts;
|
|
|
4695
|
|
|
4696 for (i = 0; i < umcf->upstreams.nelts; i++) {
|
|
260
|
4697
|
|
|
4698 init = uscfp[i]->peer.init_upstream ? uscfp[i]->peer.init_upstream:
|
|
|
4699 ngx_http_upstream_init_round_robin;
|
|
|
4700
|
|
|
4701 if (init(cf, uscfp[i]) != NGX_OK) {
|
|
200
|
4702 return NGX_CONF_ERROR;
|
|
|
4703 }
|
|
|
4704 }
|
|
198
|
4705
|
|
212
|
4706
|
|
260
|
4707 /* upstream_headers_in_hash */
|
|
|
4708
|
|
198
|
4709 if (ngx_array_init(&headers_in, cf->temp_pool, 32, sizeof(ngx_hash_key_t))
|
|
|
4710 != NGX_OK)
|
|
58
|
4711 {
|
|
|
4712 return NGX_CONF_ERROR;
|
|
|
4713 }
|
|
|
4714
|
|
198
|
4715 for (header = ngx_http_upstream_headers_in; header->name.len; header++) {
|
|
|
4716 hk = ngx_array_push(&headers_in);
|
|
|
4717 if (hk == NULL) {
|
|
|
4718 return NGX_CONF_ERROR;
|
|
|
4719 }
|
|
|
4720
|
|
|
4721 hk->key = header->name;
|
|
|
4722 hk->key_hash = ngx_hash_key_lc(header->name.data, header->name.len);
|
|
|
4723 hk->value = header;
|
|
|
4724 }
|
|
|
4725
|
|
|
4726 hash.hash = &umcf->headers_in_hash;
|
|
|
4727 hash.key = ngx_hash_key_lc;
|
|
|
4728 hash.max_size = 512;
|
|
244
|
4729 hash.bucket_size = ngx_align(64, ngx_cacheline_size);
|
|
198
|
4730 hash.name = "upstream_headers_in_hash";
|
|
|
4731 hash.pool = cf->pool;
|
|
|
4732 hash.temp_pool = NULL;
|
|
|
4733
|
|
|
4734 if (ngx_hash_init(&hash, headers_in.elts, headers_in.nelts) != NGX_OK) {
|
|
|
4735 return NGX_CONF_ERROR;
|
|
|
4736 }
|
|
58
|
4737
|
|
|
4738 return NGX_CONF_OK;
|
|
|
4739 }
|
