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