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