Mercurial > hg > nginx
annotate src/http/modules/ngx_http_proxy_module.c @ 2281:5004229420a6
FORMERR DNS response may be equal to mininal query size
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Fri, 24 Oct 2008 14:34:10 +0000 |
parents | 33556140681a |
children | c3035feb6638 |
rev | line source |
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507 | 1 |
577 | 2 /* |
507 | 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 | |
509 | 12 typedef struct ngx_http_proxy_redirect_s ngx_http_proxy_redirect_t; |
13 | |
14 typedef ngx_int_t (*ngx_http_proxy_redirect_pt)(ngx_http_request_t *r, | |
15 ngx_table_elt_t *h, size_t prefix, ngx_http_proxy_redirect_t *pr); | |
507 | 16 |
509 | 17 struct ngx_http_proxy_redirect_s { |
651 | 18 ngx_http_proxy_redirect_pt handler; |
19 ngx_str_t redirect; | |
507 | 20 |
509 | 21 union { |
651 | 22 ngx_str_t text; |
509 | 23 |
24 struct { | |
651 | 25 void *lengths; |
26 void *values; | |
509 | 27 } vars; |
507 | 28 |
651 | 29 void *regex; |
509 | 30 } replacement; |
31 }; | |
32 | |
33 | |
34 typedef struct { | |
1658 | 35 ngx_str_t host_header; |
36 ngx_str_t port; | |
37 ngx_str_t uri; | |
38 } ngx_http_proxy_vars_t; | |
39 | |
40 | |
41 typedef struct { | |
651 | 42 ngx_http_upstream_conf_t upstream; |
43 | |
44 ngx_array_t *flushes; | |
45 ngx_array_t *body_set_len; | |
46 ngx_array_t *body_set; | |
47 ngx_array_t *headers_set_len; | |
48 ngx_array_t *headers_set; | |
49 ngx_hash_t headers_set_hash; | |
50 | |
51 ngx_array_t *headers_source; | |
52 ngx_array_t *headers_names; | |
53 | |
1658 | 54 ngx_array_t *proxy_lengths; |
55 ngx_array_t *proxy_values; | |
56 | |
651 | 57 ngx_array_t *redirects; |
58 | |
59 ngx_str_t body_source; | |
60 | |
61 ngx_str_t method; | |
1658 | 62 ngx_str_t location; |
63 ngx_str_t url; | |
64 | |
65 ngx_http_proxy_vars_t vars; | |
651 | 66 |
67 ngx_flag_t redirect; | |
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68 |
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69 ngx_uint_t headers_hash_max_size; |
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70 ngx_uint_t headers_hash_bucket_size; |
507 | 71 } ngx_http_proxy_loc_conf_t; |
72 | |
73 | |
74 typedef struct { | |
651 | 75 ngx_uint_t status; |
76 ngx_uint_t status_count; | |
77 u_char *status_start; | |
78 u_char *status_end; | |
79 | |
1658 | 80 ngx_http_proxy_vars_t vars; |
81 | |
651 | 82 size_t internal_body_length; |
509 | 83 } ngx_http_proxy_ctx_t; |
507 | 84 |
85 | |
509 | 86 #define NGX_HTTP_PROXY_PARSE_NO_HEADER 20 |
507 | 87 |
88 | |
1658 | 89 static ngx_int_t ngx_http_proxy_eval(ngx_http_request_t *r, |
90 ngx_http_proxy_ctx_t *ctx, ngx_http_proxy_loc_conf_t *plcf); | |
507 | 91 static ngx_int_t ngx_http_proxy_create_request(ngx_http_request_t *r); |
92 static ngx_int_t ngx_http_proxy_reinit_request(ngx_http_request_t *r); | |
509 | 93 static ngx_int_t ngx_http_proxy_process_status_line(ngx_http_request_t *r); |
94 static ngx_int_t ngx_http_proxy_parse_status_line(ngx_http_request_t *r, | |
1658 | 95 ngx_http_proxy_ctx_t *ctx); |
507 | 96 static ngx_int_t ngx_http_proxy_process_header(ngx_http_request_t *r); |
97 static void ngx_http_proxy_abort_request(ngx_http_request_t *r); | |
98 static void ngx_http_proxy_finalize_request(ngx_http_request_t *r, | |
99 ngx_int_t rc); | |
100 | |
573 | 101 static ngx_int_t ngx_http_proxy_host_variable(ngx_http_request_t *r, |
102 ngx_http_variable_value_t *v, uintptr_t data); | |
103 static ngx_int_t ngx_http_proxy_port_variable(ngx_http_request_t *r, | |
104 ngx_http_variable_value_t *v, uintptr_t data); | |
105 static ngx_int_t | |
509 | 106 ngx_http_proxy_add_x_forwarded_for_variable(ngx_http_request_t *r, |
573 | 107 ngx_http_variable_value_t *v, uintptr_t data); |
577 | 108 static ngx_int_t |
109 ngx_http_proxy_internal_body_length_variable(ngx_http_request_t *r, | |
110 ngx_http_variable_value_t *v, uintptr_t data); | |
509 | 111 static ngx_int_t ngx_http_proxy_rewrite_redirect(ngx_http_request_t *r, |
112 ngx_table_elt_t *h, size_t prefix); | |
507 | 113 |
509 | 114 static ngx_int_t ngx_http_proxy_add_variables(ngx_conf_t *cf); |
507 | 115 static void *ngx_http_proxy_create_loc_conf(ngx_conf_t *cf); |
116 static char *ngx_http_proxy_merge_loc_conf(ngx_conf_t *cf, | |
117 void *parent, void *child); | |
118 | |
119 static char *ngx_http_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd, | |
120 void *conf); | |
509 | 121 static char *ngx_http_proxy_redirect(ngx_conf_t *cf, ngx_command_t *cmd, |
122 void *conf); | |
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123 static char *ngx_http_proxy_store(ngx_conf_t *cf, ngx_command_t *cmd, |
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124 void *conf); |
507 | 125 |
126 static char *ngx_http_proxy_lowat_check(ngx_conf_t *cf, void *post, void *data); | |
127 | |
884 | 128 static char *ngx_http_proxy_upstream_max_fails_unsupported(ngx_conf_t *cf, |
129 ngx_command_t *cmd, void *conf); | |
130 static char *ngx_http_proxy_upstream_fail_timeout_unsupported(ngx_conf_t *cf, | |
131 ngx_command_t *cmd, void *conf); | |
132 | |
1658 | 133 #if (NGX_HTTP_SSL) |
134 static ngx_int_t ngx_http_proxy_set_ssl(ngx_conf_t *cf, | |
135 ngx_http_proxy_loc_conf_t *plcf); | |
136 #endif | |
137 static ngx_int_t ngx_http_proxy_set_vars(ngx_pool_t *pool, ngx_url_t *u, | |
138 ngx_http_proxy_vars_t *v); | |
139 | |
509 | 140 |
507 | 141 static ngx_conf_post_t ngx_http_proxy_lowat_post = |
509 | 142 { ngx_http_proxy_lowat_check }; |
143 | |
507 | 144 |
145 static ngx_conf_bitmask_t ngx_http_proxy_next_upstream_masks[] = { | |
146 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR }, | |
147 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT }, | |
148 { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER }, | |
149 { ngx_string("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500 }, | |
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150 { ngx_string("http_502"), NGX_HTTP_UPSTREAM_FT_HTTP_502 }, |
623 | 151 { ngx_string("http_503"), NGX_HTTP_UPSTREAM_FT_HTTP_503 }, |
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152 { ngx_string("http_504"), NGX_HTTP_UPSTREAM_FT_HTTP_504 }, |
507 | 153 { ngx_string("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404 }, |
665 | 154 { ngx_string("off"), NGX_HTTP_UPSTREAM_FT_OFF }, |
507 | 155 { ngx_null_string, 0 } |
156 }; | |
157 | |
158 | |
159 static ngx_command_t ngx_http_proxy_commands[] = { | |
160 | |
161 { ngx_string("proxy_pass"), | |
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162 NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_HTTP_LMT_CONF|NGX_CONF_TAKE1, |
507 | 163 ngx_http_proxy_pass, |
164 NGX_HTTP_LOC_CONF_OFFSET, | |
165 0, | |
166 NULL }, | |
167 | |
509 | 168 { ngx_string("proxy_redirect"), |
169 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12, | |
170 ngx_http_proxy_redirect, | |
171 NGX_HTTP_LOC_CONF_OFFSET, | |
172 0, | |
173 NULL }, | |
174 | |
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175 { ngx_string("proxy_store"), |
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176 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
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177 ngx_http_proxy_store, |
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178 NGX_HTTP_LOC_CONF_OFFSET, |
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179 0, |
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180 NULL }, |
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181 |
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182 { ngx_string("proxy_store_access"), |
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183 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE123, |
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184 ngx_conf_set_access_slot, |
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185 NGX_HTTP_LOC_CONF_OFFSET, |
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186 offsetof(ngx_http_proxy_loc_conf_t, upstream.store_access), |
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187 NULL }, |
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188 |
581 | 189 { ngx_string("proxy_buffering"), |
190 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
191 ngx_conf_set_flag_slot, | |
192 NGX_HTTP_LOC_CONF_OFFSET, | |
193 offsetof(ngx_http_proxy_loc_conf_t, upstream.buffering), | |
194 NULL }, | |
195 | |
629 | 196 { ngx_string("proxy_ignore_client_abort"), |
197 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
198 ngx_conf_set_flag_slot, | |
199 NGX_HTTP_LOC_CONF_OFFSET, | |
200 offsetof(ngx_http_proxy_loc_conf_t, upstream.ignore_client_abort), | |
201 NULL }, | |
202 | |
507 | 203 { ngx_string("proxy_connect_timeout"), |
204 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
205 ngx_conf_set_msec_slot, | |
206 NGX_HTTP_LOC_CONF_OFFSET, | |
207 offsetof(ngx_http_proxy_loc_conf_t, upstream.connect_timeout), | |
208 NULL }, | |
209 | |
210 { ngx_string("proxy_send_timeout"), | |
211 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
212 ngx_conf_set_msec_slot, | |
213 NGX_HTTP_LOC_CONF_OFFSET, | |
214 offsetof(ngx_http_proxy_loc_conf_t, upstream.send_timeout), | |
215 NULL }, | |
216 | |
217 { ngx_string("proxy_send_lowat"), | |
218 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
219 ngx_conf_set_size_slot, | |
220 NGX_HTTP_LOC_CONF_OFFSET, | |
221 offsetof(ngx_http_proxy_loc_conf_t, upstream.send_lowat), | |
222 &ngx_http_proxy_lowat_post }, | |
223 | |
657 | 224 { ngx_string("proxy_intercept_errors"), |
225 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
226 ngx_conf_set_flag_slot, | |
227 NGX_HTTP_LOC_CONF_OFFSET, | |
228 offsetof(ngx_http_proxy_loc_conf_t, upstream.intercept_errors), | |
229 NULL }, | |
230 | |
509 | 231 { ngx_string("proxy_set_header"), |
232 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, | |
649 | 233 ngx_conf_set_keyval_slot, |
507 | 234 NGX_HTTP_LOC_CONF_OFFSET, |
509 | 235 offsetof(ngx_http_proxy_loc_conf_t, headers_source), |
507 | 236 NULL }, |
237 | |
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238 { ngx_string("proxy_headers_hash_max_size"), |
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239 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
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240 ngx_conf_set_num_slot, |
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241 NGX_HTTP_LOC_CONF_OFFSET, |
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242 offsetof(ngx_http_proxy_loc_conf_t, headers_hash_max_size), |
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243 NULL }, |
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244 |
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245 { ngx_string("proxy_headers_hash_bucket_size"), |
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246 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
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247 ngx_conf_set_num_slot, |
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248 NGX_HTTP_LOC_CONF_OFFSET, |
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249 offsetof(ngx_http_proxy_loc_conf_t, headers_hash_bucket_size), |
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250 NULL }, |
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251 |
577 | 252 { ngx_string("proxy_set_body"), |
253 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
254 ngx_conf_set_str_slot, | |
255 NGX_HTTP_LOC_CONF_OFFSET, | |
256 offsetof(ngx_http_proxy_loc_conf_t, body_source), | |
257 NULL }, | |
258 | |
509 | 259 { ngx_string("proxy_method"), |
260 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
561 | 261 ngx_conf_set_str_slot, |
509 | 262 NGX_HTTP_LOC_CONF_OFFSET, |
561 | 263 offsetof(ngx_http_proxy_loc_conf_t, method), |
264 NULL }, | |
509 | 265 |
266 { ngx_string("proxy_pass_request_headers"), | |
507 | 267 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
268 ngx_conf_set_flag_slot, | |
269 NGX_HTTP_LOC_CONF_OFFSET, | |
509 | 270 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_request_headers), |
507 | 271 NULL }, |
272 | |
509 | 273 { ngx_string("proxy_pass_request_body"), |
507 | 274 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
275 ngx_conf_set_flag_slot, | |
276 NGX_HTTP_LOC_CONF_OFFSET, | |
509 | 277 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_request_body), |
507 | 278 NULL }, |
279 | |
581 | 280 { ngx_string("proxy_buffer_size"), |
281 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
282 ngx_conf_set_size_slot, | |
283 NGX_HTTP_LOC_CONF_OFFSET, | |
284 offsetof(ngx_http_proxy_loc_conf_t, upstream.buffer_size), | |
285 NULL }, | |
286 | |
507 | 287 { ngx_string("proxy_read_timeout"), |
288 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
289 ngx_conf_set_msec_slot, | |
290 NGX_HTTP_LOC_CONF_OFFSET, | |
291 offsetof(ngx_http_proxy_loc_conf_t, upstream.read_timeout), | |
292 NULL }, | |
293 | |
294 { ngx_string("proxy_buffers"), | |
295 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, | |
296 ngx_conf_set_bufs_slot, | |
297 NGX_HTTP_LOC_CONF_OFFSET, | |
298 offsetof(ngx_http_proxy_loc_conf_t, upstream.bufs), | |
299 NULL }, | |
300 | |
301 { ngx_string("proxy_busy_buffers_size"), | |
302 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
303 ngx_conf_set_size_slot, | |
304 NGX_HTTP_LOC_CONF_OFFSET, | |
529 | 305 offsetof(ngx_http_proxy_loc_conf_t, upstream.busy_buffers_size_conf), |
507 | 306 NULL }, |
307 | |
308 { ngx_string("proxy_temp_path"), | |
309 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1234, | |
310 ngx_conf_set_path_slot, | |
311 NGX_HTTP_LOC_CONF_OFFSET, | |
312 offsetof(ngx_http_proxy_loc_conf_t, upstream.temp_path), | |
313 (void *) ngx_garbage_collector_temp_handler }, | |
314 | |
315 { ngx_string("proxy_max_temp_file_size"), | |
316 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
317 ngx_conf_set_size_slot, | |
318 NGX_HTTP_LOC_CONF_OFFSET, | |
529 | 319 offsetof(ngx_http_proxy_loc_conf_t, upstream.max_temp_file_size_conf), |
507 | 320 NULL }, |
321 | |
322 { ngx_string("proxy_temp_file_write_size"), | |
323 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
324 ngx_conf_set_size_slot, | |
325 NGX_HTTP_LOC_CONF_OFFSET, | |
529 | 326 offsetof(ngx_http_proxy_loc_conf_t, upstream.temp_file_write_size_conf), |
507 | 327 NULL }, |
328 | |
329 { ngx_string("proxy_next_upstream"), | |
547 | 330 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, |
507 | 331 ngx_conf_set_bitmask_slot, |
332 NGX_HTTP_LOC_CONF_OFFSET, | |
333 offsetof(ngx_http_proxy_loc_conf_t, upstream.next_upstream), | |
334 &ngx_http_proxy_next_upstream_masks }, | |
335 | |
561 | 336 { ngx_string("proxy_upstream_max_fails"), |
337 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
884 | 338 ngx_http_proxy_upstream_max_fails_unsupported, |
339 0, | |
340 0, | |
561 | 341 NULL }, |
342 | |
343 { ngx_string("proxy_upstream_fail_timeout"), | |
344 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
884 | 345 ngx_http_proxy_upstream_fail_timeout_unsupported, |
346 0, | |
347 0, | |
561 | 348 NULL }, |
349 | |
649 | 350 { ngx_string("proxy_pass_header"), |
507 | 351 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
649 | 352 ngx_conf_set_str_array_slot, |
507 | 353 NGX_HTTP_LOC_CONF_OFFSET, |
649 | 354 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_headers), |
507 | 355 NULL }, |
356 | |
649 | 357 { ngx_string("proxy_hide_header"), |
507 | 358 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
649 | 359 ngx_conf_set_str_array_slot, |
507 | 360 NGX_HTTP_LOC_CONF_OFFSET, |
649 | 361 offsetof(ngx_http_proxy_loc_conf_t, upstream.hide_headers), |
507 | 362 NULL }, |
363 | |
2184 | 364 #if (NGX_HTTP_SSL) |
365 | |
366 { ngx_string("proxy_ssl_session_reuse"), | |
367 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
368 ngx_conf_set_flag_slot, | |
369 NGX_HTTP_LOC_CONF_OFFSET, | |
370 offsetof(ngx_http_proxy_loc_conf_t, upstream.ssl_session_reuse), | |
371 NULL }, | |
372 | |
373 #endif | |
374 | |
507 | 375 ngx_null_command |
376 }; | |
377 | |
378 | |
667 | 379 static ngx_http_module_t ngx_http_proxy_module_ctx = { |
509 | 380 ngx_http_proxy_add_variables, /* preconfiguration */ |
381 NULL, /* postconfiguration */ | |
507 | 382 |
383 NULL, /* create main configuration */ | |
384 NULL, /* init main configuration */ | |
385 | |
386 NULL, /* create server configuration */ | |
387 NULL, /* merge server configuration */ | |
388 | |
389 ngx_http_proxy_create_loc_conf, /* create location configration */ | |
390 ngx_http_proxy_merge_loc_conf /* merge location configration */ | |
391 }; | |
392 | |
393 | |
394 ngx_module_t ngx_http_proxy_module = { | |
509 | 395 NGX_MODULE_V1, |
507 | 396 &ngx_http_proxy_module_ctx, /* module context */ |
397 ngx_http_proxy_commands, /* module directives */ | |
398 NGX_HTTP_MODULE, /* module type */ | |
541 | 399 NULL, /* init master */ |
509 | 400 NULL, /* init module */ |
541 | 401 NULL, /* init process */ |
402 NULL, /* init thread */ | |
403 NULL, /* exit thread */ | |
404 NULL, /* exit process */ | |
405 NULL, /* exit master */ | |
406 NGX_MODULE_V1_PADDING | |
507 | 407 }; |
408 | |
409 | |
410 static char ngx_http_proxy_version[] = " HTTP/1.0" CRLF; | |
411 | |
509 | 412 |
649 | 413 static ngx_keyval_t ngx_http_proxy_headers[] = { |
414 { ngx_string("Host"), ngx_string("$proxy_host") }, | |
415 { ngx_string("Connection"), ngx_string("close") }, | |
416 { ngx_string("Keep-Alive"), ngx_string("") }, | |
2067 | 417 { ngx_string("Expect"), ngx_string("") }, |
649 | 418 { ngx_null_string, ngx_null_string } |
419 }; | |
420 | |
421 | |
422 static ngx_str_t ngx_http_proxy_hide_headers[] = { | |
423 ngx_string("Date"), | |
424 ngx_string("Server"), | |
425 ngx_string("X-Pad"), | |
426 ngx_string("X-Accel-Expires"), | |
427 ngx_string("X-Accel-Redirect"), | |
428 ngx_string("X-Accel-Limit-Rate"), | |
1886
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
429 ngx_string("X-Accel-Buffering"), |
2819956d1ca0
add X-Accel-Charset to ingored header, fix X-Accel-Buffering
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
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430 ngx_string("X-Accel-Charset"), |
649 | 431 ngx_null_string |
509 | 432 }; |
433 | |
434 | |
435 static ngx_http_variable_t ngx_http_proxy_vars[] = { | |
436 | |
637 | 437 { ngx_string("proxy_host"), NULL, ngx_http_proxy_host_variable, 0, |
1925
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non cacheable $proxy_host and $proxy_port
Igor Sysoev <igor@sysoev.ru>
parents:
1912
diff
changeset
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438 NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_NOHASH, 0 }, |
509 | 439 |
637 | 440 { ngx_string("proxy_port"), NULL, ngx_http_proxy_port_variable, 0, |
1925
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Igor Sysoev <igor@sysoev.ru>
parents:
1912
diff
changeset
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441 NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_NOHASH, 0 }, |
509 | 442 |
637 | 443 { ngx_string("proxy_add_x_forwarded_for"), NULL, |
583 | 444 ngx_http_proxy_add_x_forwarded_for_variable, 0, NGX_HTTP_VAR_NOHASH, 0 }, |
509 | 445 |
446 #if 0 | |
637 | 447 { ngx_string("proxy_add_via"), NULL, NULL, 0, NGX_HTTP_VAR_NOHASH, 0 }, |
509 | 448 #endif |
449 | |
637 | 450 { ngx_string("proxy_internal_body_length"), NULL, |
583 | 451 ngx_http_proxy_internal_body_length_variable, 0, NGX_HTTP_VAR_NOHASH, 0 }, |
577 | 452 |
637 | 453 { ngx_null_string, NULL, NULL, 0, 0, 0 } |
509 | 454 }; |
507 | 455 |
456 | |
457 static ngx_int_t | |
458 ngx_http_proxy_handler(ngx_http_request_t *r) | |
577 | 459 { |
507 | 460 ngx_int_t rc; |
461 ngx_http_upstream_t *u; | |
1658 | 462 ngx_http_proxy_ctx_t *ctx; |
507 | 463 ngx_http_proxy_loc_conf_t *plcf; |
577 | 464 |
507 | 465 u = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_t)); |
466 if (u == NULL) { | |
467 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
468 } | |
577 | 469 |
1658 | 470 r->upstream = u; |
471 | |
472 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_proxy_ctx_t)); | |
473 if (ctx == NULL) { | |
474 return NGX_ERROR; | |
475 } | |
476 | |
477 ngx_http_set_ctx(r, ctx, ngx_http_proxy_module); | |
478 | |
479 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module); | |
480 | |
481 if (plcf->proxy_lengths == 0) { | |
482 ctx->vars = plcf->vars; | |
483 u->schema = plcf->upstream.schema; | |
484 #if (NGX_HTTP_SSL) | |
485 u->ssl = (plcf->upstream.ssl != NULL); | |
486 #endif | |
487 | |
488 } else { | |
489 if (ngx_http_proxy_eval(r, ctx, plcf) != NGX_OK) { | |
490 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
491 } | |
492 } | |
493 | |
507 | 494 u->peer.log = r->connection->log; |
495 u->peer.log_error = NGX_ERROR_ERR; | |
496 #if (NGX_THREADS) | |
497 u->peer.lock = &r->connection->lock; | |
498 #endif | |
499 | |
500 u->output.tag = (ngx_buf_tag_t) &ngx_http_proxy_module; | |
501 | |
502 u->conf = &plcf->upstream; | |
503 | |
504 u->create_request = ngx_http_proxy_create_request; | |
505 u->reinit_request = ngx_http_proxy_reinit_request; | |
509 | 506 u->process_header = ngx_http_proxy_process_status_line; |
507 | 507 u->abort_request = ngx_http_proxy_abort_request; |
508 u->finalize_request = ngx_http_proxy_finalize_request; | |
509 | |
509 | 510 if (plcf->redirects) { |
511 u->rewrite_redirect = ngx_http_proxy_rewrite_redirect; | |
512 } | |
513 | |
649 | 514 u->buffering = plcf->upstream.buffering; |
515 | |
516 u->pipe = ngx_pcalloc(r->pool, sizeof(ngx_event_pipe_t)); | |
517 if (u->pipe == NULL) { | |
518 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
581 | 519 } |
507 | 520 |
649 | 521 u->pipe->input_filter = ngx_event_pipe_copy_input_filter; |
522 | |
509 | 523 u->accel = 1; |
577 | 524 |
507 | 525 rc = ngx_http_read_client_request_body(r, ngx_http_upstream_init); |
526 | |
527 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) { | |
528 return rc; | |
529 } | |
530 | |
531 return NGX_DONE; | |
532 } | |
533 | |
534 | |
535 static ngx_int_t | |
1658 | 536 ngx_http_proxy_eval(ngx_http_request_t *r, ngx_http_proxy_ctx_t *ctx, |
537 ngx_http_proxy_loc_conf_t *plcf) | |
538 { | |
539 size_t add; | |
540 u_short port; | |
541 ngx_str_t proxy; | |
542 ngx_url_t u; | |
543 | |
544 if (ngx_http_script_run(r, &proxy, plcf->proxy_lengths->elts, 0, | |
545 plcf->proxy_values->elts) | |
546 == NULL) | |
547 { | |
548 return NGX_ERROR; | |
549 } | |
550 | |
551 if (ngx_strncasecmp(proxy.data, (u_char *) "http://", 7) == 0) { | |
552 | |
553 add = 7; | |
554 port = 80; | |
555 | |
556 #if (NGX_HTTP_SSL) | |
557 | |
558 } else if (ngx_strncasecmp(proxy.data, (u_char *) "https://", 8) == 0) { | |
559 | |
560 add = 8; | |
561 port = 443; | |
562 r->upstream->ssl = 1; | |
563 | |
564 #endif | |
565 | |
566 } else { | |
567 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
568 "invalid URL prefix in \"%V\"", &proxy); | |
569 return NGX_ERROR; | |
570 } | |
571 | |
572 r->upstream->schema.len = add; | |
573 r->upstream->schema.data = proxy.data; | |
574 | |
575 ngx_memzero(&u, sizeof(ngx_url_t)); | |
576 | |
577 u.url.len = proxy.len - add; | |
578 u.url.data = proxy.data + add; | |
579 u.default_port = port; | |
580 u.uri_part = 1; | |
581 u.no_resolve = 1; | |
582 | |
583 if (ngx_parse_url(r->pool, &u) != NGX_OK) { | |
584 if (u.err) { | |
585 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
586 "%s in upstream \"%V\"", u.err, &u.url); | |
587 } | |
588 | |
589 return NGX_ERROR; | |
590 } | |
591 | |
592 if (ngx_http_proxy_set_vars(r->pool, &u, &ctx->vars) != NGX_OK) { | |
593 return NGX_ERROR; | |
594 } | |
595 | |
596 r->upstream->resolved = ngx_pcalloc(r->pool, | |
597 sizeof(ngx_http_upstream_resolved_t)); | |
598 if (r->upstream->resolved == NULL) { | |
599 return NGX_ERROR; | |
600 } | |
601 | |
602 r->upstream->resolved->host = u.host; | |
603 r->upstream->resolved->port = (in_port_t) (u.no_port ? u.default_port: | |
604 u.port); | |
1912 | 605 r->upstream->resolved->default_port = u.default_port; |
1658 | 606 |
607 return NGX_OK; | |
608 } | |
609 | |
610 | |
611 static ngx_int_t | |
507 | 612 ngx_http_proxy_create_request(ngx_http_request_t *r) |
613 { | |
577 | 614 size_t len, loc_len, body_len; |
509 | 615 uintptr_t escape; |
616 ngx_buf_t *b; | |
649 | 617 ngx_str_t method; |
618 ngx_uint_t i, unparsed_uri; | |
509 | 619 ngx_chain_t *cl, *body; |
620 ngx_list_part_t *part; | |
621 ngx_table_elt_t *header; | |
622 ngx_http_upstream_t *u; | |
1658 | 623 ngx_http_proxy_ctx_t *ctx; |
509 | 624 ngx_http_script_code_pt code; |
625 ngx_http_script_engine_t e, le; | |
626 ngx_http_proxy_loc_conf_t *plcf; | |
627 ngx_http_script_len_code_pt lcode; | |
507 | 628 |
629 u = r->upstream; | |
630 | |
631 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module); | |
632 | |
561 | 633 if (u->method.len) { |
634 /* HEAD was changed to GET to cache response */ | |
635 method = u->method; | |
636 method.len++; | |
637 | |
638 } else if (plcf->method.len) { | |
639 method = plcf->method; | |
640 | |
507 | 641 } else { |
561 | 642 method = r->method_name; |
643 method.len++; | |
507 | 644 } |
645 | |
1667 | 646 len = method.len + sizeof(ngx_http_proxy_version) - 1 + sizeof(CRLF) - 1; |
647 | |
507 | 648 escape = 0; |
1658 | 649 loc_len = 0; |
650 unparsed_uri = 0; | |
651 | |
652 ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module); | |
653 | |
654 if (plcf->proxy_lengths) { | |
1667 | 655 len += ctx->vars.uri.len; |
1658 | 656 |
657 } else if (ctx->vars.uri.len == 0 && r->valid_unparsed_uri && r == r->main) | |
658 { | |
609 | 659 unparsed_uri = 1; |
1667 | 660 len += r->unparsed_uri.len; |
507 | 661 |
662 } else { | |
1658 | 663 loc_len = (r->valid_location && ctx->vars.uri.len) ? |
664 plcf->location.len : 0; | |
665 | |
1466
943f2ba615cd
escape internal request URI in proxy_pass
Igor Sysoev <igor@sysoev.ru>
parents:
1353
diff
changeset
|
666 if (r->quoted_uri || r->internal) { |
509 | 667 escape = 2 * ngx_escape_uri(NULL, r->uri.data + loc_len, |
668 r->uri.len - loc_len, NGX_ESCAPE_URI); | |
507 | 669 } |
670 | |
1688 | 671 len += ctx->vars.uri.len + r->uri.len - loc_len + escape |
672 + sizeof("?") - 1 + r->args.len; | |
507 | 673 } |
674 | |
1565 | 675 ngx_http_script_flush_no_cacheable_variables(r, plcf->flushes); |
573 | 676 |
577 | 677 if (plcf->body_set_len) { |
678 le.ip = plcf->body_set_len->elts; | |
679 le.request = r; | |
680 le.flushed = 1; | |
681 body_len = 0; | |
682 | |
683 while (*(uintptr_t *) le.ip) { | |
684 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
685 body_len += lcode(&le); | |
686 } | |
687 | |
1658 | 688 ctx->internal_body_length = body_len; |
577 | 689 len += body_len; |
690 } | |
691 | |
509 | 692 le.ip = plcf->headers_set_len->elts; |
693 le.request = r; | |
573 | 694 le.flushed = 1; |
507 | 695 |
509 | 696 while (*(uintptr_t *) le.ip) { |
697 while (*(uintptr_t *) le.ip) { | |
698 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
699 len += lcode(&le); | |
700 } | |
701 le.ip += sizeof(uintptr_t); | |
507 | 702 } |
703 | |
704 | |
509 | 705 if (plcf->upstream.pass_request_headers) { |
706 part = &r->headers_in.headers.part; | |
707 header = part->elts; | |
708 | |
709 for (i = 0; /* void */; i++) { | |
507 | 710 |
509 | 711 if (i >= part->nelts) { |
712 if (part->next == NULL) { | |
713 break; | |
714 } | |
715 | |
716 part = part->next; | |
717 header = part->elts; | |
577 | 718 i = 0; |
507 | 719 } |
720 | |
649 | 721 if (ngx_hash_find(&plcf->headers_set_hash, header[i].hash, |
722 header[i].lowcase_key, header[i].key.len)) | |
509 | 723 { |
724 continue; | |
725 } | |
726 | |
727 len += header[i].key.len + sizeof(": ") - 1 | |
728 + header[i].value.len + sizeof(CRLF) - 1; | |
507 | 729 } |
509 | 730 } |
507 | 731 |
732 | |
733 b = ngx_create_temp_buf(r->pool, len); | |
734 if (b == NULL) { | |
735 return NGX_ERROR; | |
736 } | |
737 | |
738 cl = ngx_alloc_chain_link(r->pool); | |
739 if (cl == NULL) { | |
740 return NGX_ERROR; | |
741 } | |
742 | |
743 cl->buf = b; | |
744 | |
745 | |
746 /* the request line */ | |
747 | |
573 | 748 b->last = ngx_copy(b->last, method.data, method.len); |
507 | 749 |
555 | 750 u->uri.data = b->last; |
751 | |
1658 | 752 if (plcf->proxy_lengths) { |
753 b->last = ngx_copy(b->last, ctx->vars.uri.data, ctx->vars.uri.len); | |
754 | |
755 } else if (unparsed_uri) { | |
573 | 756 b->last = ngx_copy(b->last, r->unparsed_uri.data, r->unparsed_uri.len); |
757 | |
507 | 758 } else { |
555 | 759 if (r->valid_location) { |
1658 | 760 b->last = ngx_copy(b->last, ctx->vars.uri.data, ctx->vars.uri.len); |
555 | 761 } |
551 | 762 |
507 | 763 if (escape) { |
509 | 764 ngx_escape_uri(b->last, r->uri.data + loc_len, |
765 r->uri.len - loc_len, NGX_ESCAPE_URI); | |
766 b->last += r->uri.len - loc_len + escape; | |
507 | 767 |
577 | 768 } else { |
573 | 769 b->last = ngx_copy(b->last, r->uri.data + loc_len, |
770 r->uri.len - loc_len); | |
507 | 771 } |
772 | |
773 if (r->args.len > 0) { | |
774 *b->last++ = '?'; | |
573 | 775 b->last = ngx_copy(b->last, r->args.data, r->args.len); |
507 | 776 } |
777 } | |
778 | |
555 | 779 u->uri.len = b->last - u->uri.data; |
780 | |
507 | 781 b->last = ngx_cpymem(b->last, ngx_http_proxy_version, |
782 sizeof(ngx_http_proxy_version) - 1); | |
783 | |
577 | 784 ngx_memzero(&e, sizeof(ngx_http_script_engine_t)); |
507 | 785 |
786 e.ip = plcf->headers_set->elts; | |
787 e.pos = b->last; | |
509 | 788 e.request = r; |
573 | 789 e.flushed = 1; |
507 | 790 |
509 | 791 le.ip = plcf->headers_set_len->elts; |
792 | |
793 while (*(uintptr_t *) le.ip) { | |
794 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
515 | 795 |
796 /* skip the header line name length */ | |
797 (void) lcode(&le); | |
509 | 798 |
799 if (*(ngx_http_script_len_code_pt *) le.ip) { | |
800 | |
801 for (len = 0; *(uintptr_t *) le.ip; len += lcode(&le)) { | |
802 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
803 } | |
804 | |
805 e.skip = (len == sizeof(CRLF) - 1) ? 1 : 0; | |
806 | |
807 } else { | |
808 e.skip = 0; | |
809 } | |
810 | |
811 le.ip += sizeof(uintptr_t); | |
812 | |
813 while (*(uintptr_t *) e.ip) { | |
814 code = *(ngx_http_script_code_pt *) e.ip; | |
815 code((ngx_http_script_engine_t *) &e); | |
577 | 816 } |
509 | 817 e.ip += sizeof(uintptr_t); |
507 | 818 } |
819 | |
820 b->last = e.pos; | |
821 | |
822 | |
509 | 823 if (plcf->upstream.pass_request_headers) { |
824 part = &r->headers_in.headers.part; | |
825 header = part->elts; | |
577 | 826 |
509 | 827 for (i = 0; /* void */; i++) { |
507 | 828 |
509 | 829 if (i >= part->nelts) { |
830 if (part->next == NULL) { | |
831 break; | |
832 } | |
833 | |
834 part = part->next; | |
835 header = part->elts; | |
577 | 836 i = 0; |
507 | 837 } |
838 | |
649 | 839 if (ngx_hash_find(&plcf->headers_set_hash, header[i].hash, |
840 header[i].lowcase_key, header[i].key.len)) | |
509 | 841 { |
842 continue; | |
843 } | |
507 | 844 |
573 | 845 b->last = ngx_copy(b->last, header[i].key.data, header[i].key.len); |
507 | 846 |
509 | 847 *b->last++ = ':'; *b->last++ = ' '; |
507 | 848 |
573 | 849 b->last = ngx_copy(b->last, header[i].value.data, |
850 header[i].value.len); | |
507 | 851 |
509 | 852 *b->last++ = CR; *b->last++ = LF; |
507 | 853 |
509 | 854 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
855 "http proxy header: \"%V: %V\"", | |
856 &header[i].key, &header[i].value); | |
857 } | |
507 | 858 } |
859 | |
577 | 860 |
507 | 861 /* add "\r\n" at the header end */ |
862 *b->last++ = CR; *b->last++ = LF; | |
863 | |
577 | 864 if (plcf->body_set) { |
865 e.ip = plcf->body_set->elts; | |
866 e.pos = b->last; | |
867 | |
868 while (*(uintptr_t *) e.ip) { | |
869 code = *(ngx_http_script_code_pt *) e.ip; | |
870 code((ngx_http_script_engine_t *) &e); | |
871 } | |
579 | 872 |
873 b->last = e.pos; | |
577 | 874 } |
875 | |
1774 | 876 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
877 "http proxy header:\n\"%*s\"", | |
878 (size_t) (b->last - b->pos), b->pos); | |
507 | 879 |
577 | 880 if (plcf->body_set == NULL && plcf->upstream.pass_request_body) { |
509 | 881 |
882 body = u->request_bufs; | |
883 u->request_bufs = cl; | |
884 | |
885 while (body) { | |
886 b = ngx_alloc_buf(r->pool); | |
887 if (b == NULL) { | |
888 return NGX_ERROR; | |
889 } | |
890 | |
891 ngx_memcpy(b, body->buf, sizeof(ngx_buf_t)); | |
892 | |
893 cl->next = ngx_alloc_chain_link(r->pool); | |
894 if (cl->next == NULL) { | |
895 return NGX_ERROR; | |
896 } | |
897 | |
898 cl = cl->next; | |
899 cl->buf = b; | |
900 | |
901 body = body->next; | |
902 } | |
903 | |
611 | 904 b->flush = 1; |
905 | |
509 | 906 } else { |
907 u->request_bufs = cl; | |
908 } | |
909 | |
910 cl->next = NULL; | |
911 | |
507 | 912 return NGX_OK; |
913 } | |
914 | |
915 | |
916 static ngx_int_t | |
917 ngx_http_proxy_reinit_request(ngx_http_request_t *r) | |
918 { | |
1658 | 919 ngx_http_proxy_ctx_t *ctx; |
920 | |
921 ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module); | |
922 | |
923 if (ctx == NULL) { | |
509 | 924 return NGX_OK; |
925 } | |
926 | |
1658 | 927 ctx->status = 0; |
928 ctx->status_count = 0; | |
929 ctx->status_start = NULL; | |
930 ctx->status_end = NULL; | |
509 | 931 |
932 r->upstream->process_header = ngx_http_proxy_process_status_line; | |
933 | |
934 return NGX_OK; | |
935 } | |
936 | |
937 | |
938 static ngx_int_t | |
939 ngx_http_proxy_process_status_line(ngx_http_request_t *r) | |
940 { | |
941 ngx_int_t rc; | |
942 ngx_http_upstream_t *u; | |
1658 | 943 ngx_http_proxy_ctx_t *ctx; |
944 | |
945 ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module); | |
946 | |
947 if (ctx == NULL) { | |
1699
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948 return NGX_ERROR; |
509 | 949 } |
950 | |
1658 | 951 rc = ngx_http_proxy_parse_status_line(r, ctx); |
509 | 952 |
953 if (rc == NGX_AGAIN) { | |
954 return rc; | |
955 } | |
956 | |
957 u = r->upstream; | |
958 | |
959 if (rc == NGX_HTTP_PROXY_PARSE_NO_HEADER) { | |
960 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
577 | 961 "upstream sent no valid HTTP/1.0 header"); |
509 | 962 |
619 | 963 #if 0 |
509 | 964 if (u->accel) { |
965 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
966 } | |
619 | 967 #endif |
509 | 968 |
969 r->http_version = NGX_HTTP_VERSION_9; | |
1616 | 970 u->headers_in.status_n = NGX_HTTP_OK; |
971 u->state->status = NGX_HTTP_OK; | |
577 | 972 |
509 | 973 return NGX_OK; |
974 } | |
975 | |
1658 | 976 u->headers_in.status_n = ctx->status; |
977 u->state->status = ctx->status; | |
978 | |
979 u->headers_in.status_line.len = ctx->status_end - ctx->status_start; | |
2049 | 980 u->headers_in.status_line.data = ngx_pnalloc(r->pool, |
981 u->headers_in.status_line.len); | |
529 | 982 if (u->headers_in.status_line.data == NULL) { |
1699
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|
983 return NGX_ERROR; |
509 | 984 } |
573 | 985 |
1658 | 986 ngx_memcpy(u->headers_in.status_line.data, ctx->status_start, |
529 | 987 u->headers_in.status_line.len); |
509 | 988 |
989 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
990 "http proxy status %ui \"%V\"", | |
936 | 991 u->headers_in.status_n, &u->headers_in.status_line); |
509 | 992 |
993 u->process_header = ngx_http_proxy_process_header; | |
994 | |
995 return ngx_http_proxy_process_header(r); | |
996 } | |
997 | |
998 | |
999 static ngx_int_t | |
1658 | 1000 ngx_http_proxy_parse_status_line(ngx_http_request_t *r, |
1001 ngx_http_proxy_ctx_t *ctx) | |
509 | 1002 { |
1003 u_char ch; | |
1658 | 1004 u_char *p; |
509 | 1005 ngx_http_upstream_t *u; |
1006 enum { | |
1007 sw_start = 0, | |
1008 sw_H, | |
1009 sw_HT, | |
1010 sw_HTT, | |
1011 sw_HTTP, | |
1012 sw_first_major_digit, | |
1013 sw_major_digit, | |
1014 sw_first_minor_digit, | |
1015 sw_minor_digit, | |
1016 sw_status, | |
1017 sw_space_after_status, | |
1018 sw_status_text, | |
1019 sw_almost_done | |
577 | 1020 } state; |
509 | 1021 |
1022 u = r->upstream; | |
1023 | |
1024 state = r->state; | |
1025 | |
1658 | 1026 for (p = u->buffer.pos; p < u->buffer.last; p++) { |
1027 ch = *p; | |
509 | 1028 |
1029 switch (state) { | |
1030 | |
1031 /* "HTTP/" */ | |
1032 case sw_start: | |
1033 switch (ch) { | |
577 | 1034 case 'H': |
509 | 1035 state = sw_H; |
1036 break; | |
1037 default: | |
1038 return NGX_HTTP_PROXY_PARSE_NO_HEADER; | |
1039 } | |
1040 break; | |
1041 | |
577 | 1042 case sw_H: |
509 | 1043 switch (ch) { |
577 | 1044 case 'T': |
509 | 1045 state = sw_HT; |
1046 break; | |
1047 default: | |
1048 return NGX_HTTP_PROXY_PARSE_NO_HEADER; | |
1049 } | |
1050 break; | |
1051 | |
1052 case sw_HT: | |
1053 switch (ch) { | |
577 | 1054 case 'T': |
509 | 1055 state = sw_HTT; |
1056 break; | |
1057 default: | |
1058 return NGX_HTTP_PROXY_PARSE_NO_HEADER; | |
1059 } | |
1060 break; | |
1061 | |
1062 case sw_HTT: | |
1063 switch (ch) { | |
577 | 1064 case 'P': |
509 | 1065 state = sw_HTTP; |
1066 break; | |
1067 default: | |
1068 return NGX_HTTP_PROXY_PARSE_NO_HEADER; | |
1069 } | |
1070 break; | |
1071 | |
1072 case sw_HTTP: | |
1073 switch (ch) { | |
577 | 1074 case '/': |
509 | 1075 state = sw_first_major_digit; |
1076 break; | |
1077 default: | |
1078 return NGX_HTTP_PROXY_PARSE_NO_HEADER; | |
1079 } | |
1080 break; | |
1081 | |
1082 /* the first digit of major HTTP version */ | |
1083 case sw_first_major_digit: | |
1084 if (ch < '1' || ch > '9') { | |
1085 return NGX_HTTP_PROXY_PARSE_NO_HEADER; | |
1086 } | |
1087 | |
1088 state = sw_major_digit; | |
1089 break; | |
1090 | |
1091 /* the major HTTP version or dot */ | |
1092 case sw_major_digit: | |
1093 if (ch == '.') { | |
1094 state = sw_first_minor_digit; | |
1095 break; | |
1096 } | |
1097 | |
1098 if (ch < '0' || ch > '9') { | |
1099 return NGX_HTTP_PROXY_PARSE_NO_HEADER; | |
1100 } | |
1101 | |
1102 break; | |
1103 | |
1104 /* the first digit of minor HTTP version */ | |
1105 case sw_first_minor_digit: | |
1106 if (ch < '0' || ch > '9') { | |
1107 return NGX_HTTP_PROXY_PARSE_NO_HEADER; | |
1108 } | |
1109 | |
1110 state = sw_minor_digit; | |
1111 break; | |
1112 | |
1113 /* the minor HTTP version or the end of the request line */ | |
1114 case sw_minor_digit: | |
1115 if (ch == ' ') { | |
1116 state = sw_status; | |
1117 break; | |
1118 } | |
1119 | |
1120 if (ch < '0' || ch > '9') { | |
1121 return NGX_HTTP_PROXY_PARSE_NO_HEADER; | |
1122 } | |
1123 | |
1124 break; | |
1125 | |
1126 /* HTTP status code */ | |
1127 case sw_status: | |
619 | 1128 if (ch == ' ') { |
1129 break; | |
1130 } | |
1131 | |
509 | 1132 if (ch < '0' || ch > '9') { |
1133 return NGX_HTTP_PROXY_PARSE_NO_HEADER; | |
1134 } | |
1135 | |
1658 | 1136 ctx->status = ctx->status * 10 + ch - '0'; |
1137 | |
1138 if (++ctx->status_count == 3) { | |
509 | 1139 state = sw_space_after_status; |
1658 | 1140 ctx->status_start = p - 2; |
509 | 1141 } |
1142 | |
1143 break; | |
1144 | |
1145 /* space or end of line */ | |
1146 case sw_space_after_status: | |
1147 switch (ch) { | |
577 | 1148 case ' ': |
509 | 1149 state = sw_status_text; |
1150 break; | |
1151 case '.': /* IIS may send 403.1, 403.2, etc */ | |
1152 state = sw_status_text; | |
1153 break; | |
1154 case CR: | |
1155 state = sw_almost_done; | |
1156 break; | |
1157 case LF: | |
1158 goto done; | |
1159 default: | |
1160 return NGX_HTTP_PROXY_PARSE_NO_HEADER; | |
1161 } | |
1162 break; | |
1163 | |
1164 /* any text until end of line */ | |
1165 case sw_status_text: | |
1166 switch (ch) { | |
1167 case CR: | |
1168 state = sw_almost_done; | |
1169 | |
1170 break; | |
1171 case LF: | |
1172 goto done; | |
1173 } | |
1174 break; | |
1175 | |
527 | 1176 /* end of status line */ |
509 | 1177 case sw_almost_done: |
1658 | 1178 ctx->status_end = p - 1; |
509 | 1179 switch (ch) { |
1180 case LF: | |
1181 goto done; | |
1182 default: | |
1183 return NGX_HTTP_PROXY_PARSE_NO_HEADER; | |
1184 } | |
1185 } | |
1186 } | |
1187 | |
1658 | 1188 u->buffer.pos = p; |
509 | 1189 r->state = state; |
1190 | |
1191 return NGX_AGAIN; | |
1192 | |
1193 done: | |
1194 | |
1658 | 1195 u->buffer.pos = p + 1; |
1196 | |
1197 if (ctx->status_end == NULL) { | |
1198 ctx->status_end = p; | |
509 | 1199 } |
1200 | |
1201 r->state = sw_start; | |
1202 | |
507 | 1203 return NGX_OK; |
1204 } | |
1205 | |
1206 | |
1207 static ngx_int_t | |
1208 ngx_http_proxy_process_header(ngx_http_request_t *r) | |
1209 { | |
509 | 1210 ngx_int_t rc; |
1211 ngx_table_elt_t *h; | |
1212 ngx_http_upstream_header_t *hh; | |
1213 ngx_http_upstream_main_conf_t *umcf; | |
1214 | |
1215 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module); | |
1216 | |
2024 | 1217 for ( ;; ) { |
509 | 1218 |
2256 | 1219 rc = ngx_http_parse_header_line(r, &r->upstream->buffer, 1); |
509 | 1220 |
1221 if (rc == NGX_OK) { | |
1222 | |
1223 /* a header line has been parsed successfully */ | |
507 | 1224 |
509 | 1225 h = ngx_list_push(&r->upstream->headers_in.headers); |
1226 if (h == NULL) { | |
1699
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parents:
1688
diff
changeset
|
1227 return NGX_ERROR; |
509 | 1228 } |
1229 | |
1230 h->hash = r->header_hash; | |
1231 | |
1232 h->key.len = r->header_name_end - r->header_name_start; | |
1233 h->value.len = r->header_end - r->header_start; | |
1234 | |
2049 | 1235 h->key.data = ngx_pnalloc(r->pool, |
649 | 1236 h->key.len + 1 + h->value.len + 1 + h->key.len); |
509 | 1237 if (h->key.data == NULL) { |
1699
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diff
changeset
|
1238 return NGX_ERROR; |
509 | 1239 } |
1240 | |
1241 h->value.data = h->key.data + h->key.len + 1; | |
649 | 1242 h->lowcase_key = h->key.data + h->key.len + 1 + h->value.len + 1; |
507 | 1243 |
509 | 1244 ngx_cpystrn(h->key.data, r->header_name_start, h->key.len + 1); |
1245 ngx_cpystrn(h->value.data, r->header_start, h->value.len + 1); | |
1246 | |
649 | 1247 if (h->key.len == r->lowcase_index) { |
1248 ngx_memcpy(h->lowcase_key, r->lowcase_header, h->key.len); | |
1249 | |
1250 } else { | |
2135 | 1251 ngx_strlow(h->lowcase_key, h->key.data, h->key.len); |
509 | 1252 } |
1253 | |
649 | 1254 hh = ngx_hash_find(&umcf->headers_in_hash, h->hash, |
1255 h->lowcase_key, h->key.len); | |
1256 | |
1257 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) { | |
1699
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Igor Sysoev <igor@sysoev.ru>
parents:
1688
diff
changeset
|
1258 return NGX_ERROR; |
649 | 1259 } |
1260 | |
509 | 1261 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
1262 "http proxy header: \"%V: %V\"", | |
1263 &h->key, &h->value); | |
1264 | |
1265 continue; | |
1266 } | |
1267 | |
1268 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { | |
1269 | |
1270 /* a whole header has been parsed successfully */ | |
1271 | |
1272 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1273 "http proxy header done"); | |
1274 | |
649 | 1275 /* |
1276 * if no "Server" and "Date" in header line, | |
1277 * then add the special empty headers | |
1278 */ | |
1279 | |
1280 if (r->upstream->headers_in.server == NULL) { | |
1281 h = ngx_list_push(&r->upstream->headers_in.headers); | |
1282 if (h == NULL) { | |
1699
976db8c6fb64
return NGX_ERROR instead of NGX_HTTP_INTERNAL_SERVER_ERROR in u->parse_header()
Igor Sysoev <igor@sysoev.ru>
parents:
1688
diff
changeset
|
1283 return NGX_ERROR; |
649 | 1284 } |
1285 | |
1286 h->hash = ngx_hash(ngx_hash(ngx_hash(ngx_hash( | |
1287 ngx_hash('s', 'e'), 'r'), 'v'), 'e'), 'r'); | |
1288 | |
1289 h->key.len = sizeof("Server") - 1; | |
1290 h->key.data = (u_char *) "Server"; | |
1291 h->value.len = 0; | |
1292 h->value.data = NULL; | |
1293 h->lowcase_key = (u_char *) "server"; | |
1294 } | |
1295 | |
1296 if (r->upstream->headers_in.date == NULL) { | |
1297 h = ngx_list_push(&r->upstream->headers_in.headers); | |
1298 if (h == NULL) { | |
1699
976db8c6fb64
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parents:
1688
diff
changeset
|
1299 return NGX_ERROR; |
649 | 1300 } |
1301 | |
1302 h->hash = ngx_hash(ngx_hash(ngx_hash('d', 'a'), 't'), 'e'); | |
1303 | |
1304 h->key.len = sizeof("Date") - 1; | |
1305 h->key.data = (u_char *) "Date"; | |
1306 h->value.len = 0; | |
1307 h->value.data = NULL; | |
1308 h->lowcase_key = (u_char *) "date"; | |
1309 } | |
1310 | |
509 | 1311 return NGX_OK; |
1312 } | |
1313 | |
521 | 1314 if (rc == NGX_AGAIN) { |
1315 return NGX_AGAIN; | |
1316 } | |
1317 | |
509 | 1318 /* there was error while a header line parsing */ |
1319 | |
1320 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
619 | 1321 "upstream sent invalid header"); |
509 | 1322 |
1323 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1324 } | |
507 | 1325 } |
1326 | |
1327 | |
1328 static void | |
1329 ngx_http_proxy_abort_request(ngx_http_request_t *r) | |
1330 { | |
1331 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1332 "abort http proxy request"); | |
577 | 1333 |
507 | 1334 return; |
1335 } | |
1336 | |
1337 | |
1338 static void | |
1339 ngx_http_proxy_finalize_request(ngx_http_request_t *r, ngx_int_t rc) | |
577 | 1340 { |
507 | 1341 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
1342 "finalize http proxy request"); | |
1343 | |
1344 return; | |
1345 } | |
1346 | |
1347 | |
573 | 1348 static ngx_int_t |
1349 ngx_http_proxy_host_variable(ngx_http_request_t *r, | |
1350 ngx_http_variable_value_t *v, uintptr_t data) | |
507 | 1351 { |
1658 | 1352 ngx_http_proxy_ctx_t *ctx; |
1353 | |
1354 ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module); | |
1355 | |
1356 if (ctx == NULL) { | |
1357 v->not_found = 1; | |
1358 return NGX_OK; | |
1359 } | |
1360 | |
1361 v->len = ctx->vars.host_header.len; | |
577 | 1362 v->valid = 1; |
1565 | 1363 v->no_cacheable = 0; |
573 | 1364 v->not_found = 0; |
1658 | 1365 v->data = ctx->vars.host_header.data; |
507 | 1366 |
573 | 1367 return NGX_OK; |
507 | 1368 } |
1369 | |
1370 | |
573 | 1371 static ngx_int_t |
1372 ngx_http_proxy_port_variable(ngx_http_request_t *r, | |
1373 ngx_http_variable_value_t *v, uintptr_t data) | |
507 | 1374 { |
1658 | 1375 ngx_http_proxy_ctx_t *ctx; |
1376 | |
1377 ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module); | |
1378 | |
1379 if (ctx == NULL) { | |
1380 v->not_found = 1; | |
1381 return NGX_OK; | |
1382 } | |
1383 | |
1384 v->len = ctx->vars.port.len; | |
577 | 1385 v->valid = 1; |
1565 | 1386 v->no_cacheable = 0; |
573 | 1387 v->not_found = 0; |
1658 | 1388 v->data = ctx->vars.port.data; |
509 | 1389 |
573 | 1390 return NGX_OK; |
509 | 1391 } |
1392 | |
1393 | |
573 | 1394 static ngx_int_t |
509 | 1395 ngx_http_proxy_add_x_forwarded_for_variable(ngx_http_request_t *r, |
573 | 1396 ngx_http_variable_value_t *v, uintptr_t data) |
509 | 1397 { |
573 | 1398 u_char *p; |
509 | 1399 |
577 | 1400 v->valid = 1; |
1565 | 1401 v->no_cacheable = 0; |
573 | 1402 v->not_found = 0; |
509 | 1403 |
1404 if (r->headers_in.x_forwarded_for == NULL) { | |
573 | 1405 v->len = r->connection->addr_text.len; |
1406 v->data = r->connection->addr_text.data; | |
1407 return NGX_OK; | |
509 | 1408 } |
1409 | |
573 | 1410 v->len = r->headers_in.x_forwarded_for->value.len |
1411 + sizeof(", ") - 1 + r->connection->addr_text.len; | |
509 | 1412 |
2049 | 1413 p = ngx_pnalloc(r->pool, v->len); |
509 | 1414 if (p == NULL) { |
573 | 1415 return NGX_ERROR; |
509 | 1416 } |
1417 | |
573 | 1418 v->data = p; |
509 | 1419 |
573 | 1420 p = ngx_copy(p, r->headers_in.x_forwarded_for->value.data, |
1421 r->headers_in.x_forwarded_for->value.len); | |
509 | 1422 |
1423 *p++ = ','; *p++ = ' '; | |
1424 | |
1425 ngx_memcpy(p, r->connection->addr_text.data, r->connection->addr_text.len); | |
1426 | |
573 | 1427 return NGX_OK; |
509 | 1428 } |
1429 | |
1430 | |
1431 static ngx_int_t | |
577 | 1432 ngx_http_proxy_internal_body_length_variable(ngx_http_request_t *r, |
1433 ngx_http_variable_value_t *v, uintptr_t data) | |
1434 { | |
1658 | 1435 ngx_http_proxy_ctx_t *ctx; |
1436 | |
1437 ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module); | |
1438 | |
1439 if (ctx == NULL) { | |
577 | 1440 v->not_found = 1; |
1441 return NGX_OK; | |
1442 } | |
1443 | |
1444 v->valid = 1; | |
1565 | 1445 v->no_cacheable = 0; |
577 | 1446 v->not_found = 0; |
1447 | |
2049 | 1448 v->data = ngx_pnalloc(r->connection->pool, NGX_SIZE_T_LEN); |
577 | 1449 |
1450 if (v->data == NULL) { | |
1451 return NGX_ERROR; | |
1452 } | |
1453 | |
1658 | 1454 v->len = ngx_sprintf(v->data, "%uz", ctx->internal_body_length) - v->data; |
577 | 1455 |
1456 return NGX_OK; | |
1457 } | |
1458 | |
1459 | |
1460 static ngx_int_t | |
509 | 1461 ngx_http_proxy_rewrite_redirect(ngx_http_request_t *r, ngx_table_elt_t *h, |
1462 size_t prefix) | |
1463 { | |
1464 ngx_int_t rc; | |
1465 ngx_uint_t i; | |
1466 ngx_http_proxy_loc_conf_t *plcf; | |
1467 ngx_http_proxy_redirect_t *pr; | |
1468 | |
1469 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module); | |
1470 | |
1471 pr = plcf->redirects->elts; | |
1472 | |
1473 if (pr == NULL) { | |
1474 return NGX_DECLINED; | |
1475 } | |
1476 | |
1477 for (i = 0; i < plcf->redirects->nelts; i++) { | |
605 | 1478 rc = pr[i].handler(r, h, prefix, &pr[i]); |
509 | 1479 |
1480 if (rc != NGX_DECLINED) { | |
1481 return rc; | |
1482 } | |
1483 } | |
1484 | |
1485 return NGX_DECLINED; | |
1486 } | |
1487 | |
1488 | |
1489 static ngx_int_t | |
1490 ngx_http_proxy_rewrite_redirect_text(ngx_http_request_t *r, ngx_table_elt_t *h, | |
1491 size_t prefix, ngx_http_proxy_redirect_t *pr) | |
1492 { | |
1493 size_t len; | |
1494 u_char *data, *p; | |
1495 | |
1496 if (pr->redirect.len > h->value.len - prefix | |
1497 || ngx_rstrncmp(h->value.data + prefix, pr->redirect.data, | |
1498 pr->redirect.len) != 0) | |
1499 { | |
1500 return NGX_DECLINED; | |
1501 } | |
1502 | |
1503 len = prefix + pr->replacement.text.len + h->value.len - pr->redirect.len; | |
507 | 1504 |
2049 | 1505 data = ngx_pnalloc(r->pool, len); |
509 | 1506 if (data == NULL) { |
1507 return NGX_ERROR; | |
1508 } | |
1509 | |
1510 p = data; | |
1511 | |
573 | 1512 p = ngx_copy(p, h->value.data, prefix); |
509 | 1513 |
653 | 1514 if (pr->replacement.text.len) { |
1515 p = ngx_copy(p, pr->replacement.text.data, pr->replacement.text.len); | |
1516 } | |
509 | 1517 |
1518 ngx_memcpy(p, h->value.data + prefix + pr->redirect.len, | |
1519 h->value.len - pr->redirect.len - prefix); | |
1520 | |
1521 h->value.len = len; | |
1522 h->value.data = data; | |
1523 | |
1524 return NGX_OK; | |
1525 } | |
1526 | |
1527 | |
1528 static ngx_int_t | |
1529 ngx_http_proxy_rewrite_redirect_vars(ngx_http_request_t *r, ngx_table_elt_t *h, | |
1530 size_t prefix, ngx_http_proxy_redirect_t *pr) | |
1531 { | |
1532 size_t len; | |
1533 u_char *data, *p; | |
1534 ngx_http_script_code_pt code; | |
1535 ngx_http_script_engine_t e; | |
1536 ngx_http_script_len_code_pt lcode; | |
1537 | |
1538 if (pr->redirect.len > h->value.len - prefix | |
1539 || ngx_rstrncmp(h->value.data + prefix, pr->redirect.data, | |
1540 pr->redirect.len) != 0) | |
1541 { | |
1542 return NGX_DECLINED; | |
1543 } | |
1544 | |
1545 ngx_memzero(&e, sizeof(ngx_http_script_engine_t)); | |
1546 | |
1547 e.ip = pr->replacement.vars.lengths; | |
1548 e.request = r; | |
1549 | |
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1550 len = prefix + h->value.len - pr->redirect.len; |
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1551 |
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1552 while (*(uintptr_t *) e.ip) { |
509 | 1553 lcode = *(ngx_http_script_len_code_pt *) e.ip; |
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1554 len += lcode(&e); |
509 | 1555 } |
1556 | |
2049 | 1557 data = ngx_pnalloc(r->pool, len); |
509 | 1558 if (data == NULL) { |
1559 return NGX_ERROR; | |
1560 } | |
1561 | |
1562 p = data; | |
1563 | |
573 | 1564 p = ngx_copy(p, h->value.data, prefix); |
509 | 1565 |
1566 e.ip = pr->replacement.vars.values; | |
1567 e.pos = p; | |
1568 | |
1569 while (*(uintptr_t *) e.ip) { | |
1570 code = *(ngx_http_script_code_pt *) e.ip; | |
1571 code(&e); | |
1572 } | |
1573 | |
723
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1574 ngx_memcpy(e.pos, h->value.data + prefix + pr->redirect.len, |
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1575 h->value.len - pr->redirect.len - prefix); |
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1576 |
509 | 1577 h->value.len = len; |
1578 h->value.data = data; | |
1579 | |
1580 return NGX_OK; | |
1581 } | |
1582 | |
1583 | |
1584 static ngx_int_t | |
1585 ngx_http_proxy_add_variables(ngx_conf_t *cf) | |
1586 { | |
1587 ngx_http_variable_t *var, *v; | |
1588 | |
1589 for (v = ngx_http_proxy_vars; v->name.len; v++) { | |
1590 var = ngx_http_add_variable(cf, &v->name, v->flags); | |
1591 if (var == NULL) { | |
1592 return NGX_ERROR; | |
1593 } | |
1594 | |
637 | 1595 var->get_handler = v->get_handler; |
509 | 1596 var->data = v->data; |
1597 } | |
1598 | |
1599 return NGX_OK; | |
507 | 1600 } |
1601 | |
1602 | |
1603 static void * | |
1604 ngx_http_proxy_create_loc_conf(ngx_conf_t *cf) | |
1605 { | |
1606 ngx_http_proxy_loc_conf_t *conf; | |
1607 | |
1608 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_proxy_loc_conf_t)); | |
1609 if (conf == NULL) { | |
1610 return NGX_CONF_ERROR; | |
1611 } | |
1612 | |
1613 /* | |
1614 * set by ngx_pcalloc(): | |
1615 * | |
1616 * conf->upstream.bufs.num = 0; | |
1617 * conf->upstream.next_upstream = 0; | |
1618 * conf->upstream.temp_path = NULL; | |
649 | 1619 * conf->upstream.hide_headers_hash = { NULL, 0 }; |
509 | 1620 * conf->upstream.schema = { 0, NULL }; |
1621 * conf->upstream.uri = { 0, NULL }; | |
1622 * conf->upstream.location = NULL; | |
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1623 * conf->upstream.store_lengths = NULL; |
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1624 * conf->upstream.store_values = NULL; |
509 | 1625 * |
561 | 1626 * conf->method = NULL; |
509 | 1627 * conf->headers_source = NULL; |
1628 * conf->headers_set_len = NULL; | |
1629 * conf->headers_set = NULL; | |
1630 * conf->headers_set_hash = NULL; | |
577 | 1631 * conf->body_set_len = NULL; |
1632 * conf->body_set = NULL; | |
1633 * conf->body_source = { 0, NULL }; | |
509 | 1634 * conf->rewrite_locations = NULL; |
507 | 1635 */ |
577 | 1636 |
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|
1637 conf->upstream.store = NGX_CONF_UNSET; |
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|
1638 conf->upstream.store_access = NGX_CONF_UNSET_UINT; |
581 | 1639 conf->upstream.buffering = NGX_CONF_UNSET; |
629 | 1640 conf->upstream.ignore_client_abort = NGX_CONF_UNSET; |
581 | 1641 |
507 | 1642 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC; |
1643 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC; | |
1644 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC; | |
1645 | |
1646 conf->upstream.send_lowat = NGX_CONF_UNSET_SIZE; | |
581 | 1647 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE; |
529 | 1648 |
1649 conf->upstream.busy_buffers_size_conf = NGX_CONF_UNSET_SIZE; | |
577 | 1650 conf->upstream.max_temp_file_size_conf = NGX_CONF_UNSET_SIZE; |
529 | 1651 conf->upstream.temp_file_write_size_conf = NGX_CONF_UNSET_SIZE; |
509 | 1652 |
1653 conf->upstream.pass_request_headers = NGX_CONF_UNSET; | |
1654 conf->upstream.pass_request_body = NGX_CONF_UNSET; | |
561 | 1655 |
1701
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diff
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|
1656 conf->upstream.hide_headers = NGX_CONF_UNSET_PTR; |
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diff
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|
1657 conf->upstream.pass_headers = NGX_CONF_UNSET_PTR; |
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diff
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|
1658 |
657 | 1659 conf->upstream.intercept_errors = NGX_CONF_UNSET; |
2184 | 1660 #if (NGX_HTTP_SSL) |
1661 conf->upstream.ssl_session_reuse = NGX_CONF_UNSET; | |
1662 #endif | |
507 | 1663 |
1664 /* "proxy_cyclic_temp_file" is disabled */ | |
1665 conf->upstream.cyclic_temp_file = 0; | |
1666 | |
509 | 1667 conf->redirect = NGX_CONF_UNSET; |
649 | 1668 conf->upstream.change_buffering = 1; |
507 | 1669 |
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1670 conf->headers_hash_max_size = NGX_CONF_UNSET_UINT; |
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1671 conf->headers_hash_bucket_size = NGX_CONF_UNSET_UINT; |
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diff
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|
1672 |
507 | 1673 return conf; |
1674 } | |
1675 | |
1676 | |
1677 static char * | |
1678 ngx_http_proxy_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
1679 { | |
1680 ngx_http_proxy_loc_conf_t *prev = parent; | |
1681 ngx_http_proxy_loc_conf_t *conf = child; | |
1682 | |
509 | 1683 u_char *p; |
1684 size_t size; | |
1685 uintptr_t *code; | |
1701
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diff
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|
1686 ngx_uint_t i; |
649 | 1687 ngx_keyval_t *src, *s, *h; |
1688 ngx_hash_key_t *hk; | |
1689 ngx_hash_init_t hash; | |
509 | 1690 ngx_http_proxy_redirect_t *pr; |
1691 ngx_http_script_compile_t sc; | |
1692 ngx_http_script_copy_code_t *copy; | |
1693 | |
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1694 if (conf->upstream.store != 0) { |
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1695 ngx_conf_merge_value(conf->upstream.store, |
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1696 prev->upstream.store, 0); |
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|
1697 |
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|
1698 if (conf->upstream.store_lengths == NULL) { |
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|
1699 conf->upstream.store_lengths = prev->upstream.store_lengths; |
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1700 conf->upstream.store_values = prev->upstream.store_values; |
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1701 } |
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|
1702 } |
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|
1703 |
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|
1704 ngx_conf_merge_uint_value(conf->upstream.store_access, |
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diff
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|
1705 prev->upstream.store_access, 0600); |
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1244
diff
changeset
|
1706 |
581 | 1707 ngx_conf_merge_value(conf->upstream.buffering, |
1708 prev->upstream.buffering, 1); | |
1709 | |
629 | 1710 ngx_conf_merge_value(conf->upstream.ignore_client_abort, |
1711 prev->upstream.ignore_client_abort, 0); | |
1712 | |
507 | 1713 ngx_conf_merge_msec_value(conf->upstream.connect_timeout, |
1714 prev->upstream.connect_timeout, 60000); | |
1715 | |
1716 ngx_conf_merge_msec_value(conf->upstream.send_timeout, | |
1717 prev->upstream.send_timeout, 60000); | |
1718 | |
1719 ngx_conf_merge_msec_value(conf->upstream.read_timeout, | |
1720 prev->upstream.read_timeout, 60000); | |
1721 | |
1722 ngx_conf_merge_size_value(conf->upstream.send_lowat, | |
1723 prev->upstream.send_lowat, 0); | |
1724 | |
581 | 1725 ngx_conf_merge_size_value(conf->upstream.buffer_size, |
1726 prev->upstream.buffer_size, | |
507 | 1727 (size_t) ngx_pagesize); |
1728 | |
1729 ngx_conf_merge_bufs_value(conf->upstream.bufs, prev->upstream.bufs, | |
1730 8, ngx_pagesize); | |
1731 | |
1732 if (conf->upstream.bufs.num < 2) { | |
577 | 1733 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
507 | 1734 "there must be at least 2 \"proxy_buffers\""); |
1735 return NGX_CONF_ERROR; | |
1736 } | |
577 | 1737 |
507 | 1738 |
581 | 1739 size = conf->upstream.buffer_size; |
577 | 1740 if (size < conf->upstream.bufs.size) { |
507 | 1741 size = conf->upstream.bufs.size; |
1742 } | |
1743 | |
1744 | |
529 | 1745 ngx_conf_merge_size_value(conf->upstream.busy_buffers_size_conf, |
1746 prev->upstream.busy_buffers_size_conf, | |
507 | 1747 NGX_CONF_UNSET_SIZE); |
1748 | |
529 | 1749 if (conf->upstream.busy_buffers_size_conf == NGX_CONF_UNSET_SIZE) { |
507 | 1750 conf->upstream.busy_buffers_size = 2 * size; |
529 | 1751 } else { |
1752 conf->upstream.busy_buffers_size = | |
1753 conf->upstream.busy_buffers_size_conf; | |
1754 } | |
577 | 1755 |
529 | 1756 if (conf->upstream.busy_buffers_size < size) { |
507 | 1757 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
1758 "\"proxy_busy_buffers_size\" must be equal or bigger than " | |
1125
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diff
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|
1759 "maximum of the value of \"proxy_buffer_size\" and " |
507 | 1760 "one of the \"proxy_buffers\""); |
1761 | |
1762 return NGX_CONF_ERROR; | |
529 | 1763 } |
507 | 1764 |
529 | 1765 if (conf->upstream.busy_buffers_size |
1766 > (conf->upstream.bufs.num - 1) * conf->upstream.bufs.size) | |
507 | 1767 { |
1768 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
1769 "\"proxy_busy_buffers_size\" must be less than " | |
1770 "the size of all \"proxy_buffers\" minus one buffer"); | |
1771 | |
1772 return NGX_CONF_ERROR; | |
1773 } | |
529 | 1774 |
507 | 1775 |
529 | 1776 ngx_conf_merge_size_value(conf->upstream.temp_file_write_size_conf, |
1777 prev->upstream.temp_file_write_size_conf, | |
507 | 1778 NGX_CONF_UNSET_SIZE); |
1779 | |
529 | 1780 if (conf->upstream.temp_file_write_size_conf == NGX_CONF_UNSET_SIZE) { |
507 | 1781 conf->upstream.temp_file_write_size = 2 * size; |
529 | 1782 } else { |
1783 conf->upstream.temp_file_write_size = | |
1784 conf->upstream.temp_file_write_size_conf; | |
1785 } | |
577 | 1786 |
529 | 1787 if (conf->upstream.temp_file_write_size < size) { |
507 | 1788 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
1789 "\"proxy_temp_file_write_size\" must be equal or bigger than " | |
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|
1790 "maximum of the value of \"proxy_buffer_size\" and " |
507 | 1791 "one of the \"proxy_buffers\""); |
1792 | |
1793 return NGX_CONF_ERROR; | |
1794 } | |
1795 | |
529 | 1796 ngx_conf_merge_size_value(conf->upstream.max_temp_file_size_conf, |
1797 prev->upstream.max_temp_file_size_conf, | |
507 | 1798 NGX_CONF_UNSET_SIZE); |
1799 | |
529 | 1800 if (conf->upstream.max_temp_file_size_conf == NGX_CONF_UNSET_SIZE) { |
507 | 1801 conf->upstream.max_temp_file_size = 1024 * 1024 * 1024; |
529 | 1802 } else { |
1803 conf->upstream.max_temp_file_size = | |
1804 conf->upstream.max_temp_file_size_conf; | |
1805 } | |
507 | 1806 |
529 | 1807 if (conf->upstream.max_temp_file_size != 0 |
1808 && conf->upstream.max_temp_file_size < size) | |
507 | 1809 { |
1810 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
561 | 1811 "\"proxy_max_temp_file_size\" must be equal to zero to disable " |
507 | 1812 "the temporary files usage or must be equal or bigger than " |
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|
1813 "maximum of the value of \"proxy_buffer_size\" and " |
561 | 1814 "one of the \"proxy_buffers\""); |
507 | 1815 |
1816 return NGX_CONF_ERROR; | |
1817 } | |
1818 | |
529 | 1819 |
507 | 1820 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream, |
1821 prev->upstream.next_upstream, | |
1822 (NGX_CONF_BITMASK_SET | |
1823 |NGX_HTTP_UPSTREAM_FT_ERROR | |
1824 |NGX_HTTP_UPSTREAM_FT_TIMEOUT)); | |
1825 | |
665 | 1826 if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) { |
1827 conf->upstream.next_upstream = NGX_CONF_BITMASK_SET | |
1828 |NGX_HTTP_UPSTREAM_FT_OFF; | |
1829 } | |
1830 | |
509 | 1831 ngx_conf_merge_path_value(conf->upstream.temp_path, |
1832 prev->upstream.temp_path, | |
1833 NGX_HTTP_PROXY_TEMP_PATH, 1, 2, 0, | |
1834 ngx_garbage_collector_temp_handler, cf); | |
507 | 1835 |
561 | 1836 if (conf->method.len == 0) { |
1837 conf->method = prev->method; | |
1838 | |
1839 } else { | |
1840 conf->method.data[conf->method.len] = ' '; | |
1841 conf->method.len++; | |
509 | 1842 } |
1843 | |
1844 ngx_conf_merge_value(conf->upstream.pass_request_headers, | |
1845 prev->upstream.pass_request_headers, 1); | |
1846 ngx_conf_merge_value(conf->upstream.pass_request_body, | |
1847 prev->upstream.pass_request_body, 1); | |
1848 | |
657 | 1849 ngx_conf_merge_value(conf->upstream.intercept_errors, |
1850 prev->upstream.intercept_errors, 0); | |
509 | 1851 |
2184 | 1852 #if (NGX_HTTP_SSL) |
1853 ngx_conf_merge_value(conf->upstream.ssl_session_reuse, | |
1854 prev->upstream.ssl_session_reuse, 1); | |
1855 #endif | |
1856 | |
509 | 1857 ngx_conf_merge_value(conf->redirect, prev->redirect, 1); |
1858 | |
1859 if (conf->redirect) { | |
507 | 1860 |
509 | 1861 if (conf->redirects == NULL) { |
1862 conf->redirects = prev->redirects; | |
1863 } | |
1864 | |
1658 | 1865 if (conf->redirects == NULL && conf->url.data) { |
509 | 1866 |
1867 conf->redirects = ngx_array_create(cf->pool, 1, | |
1868 sizeof(ngx_http_proxy_redirect_t)); | |
1869 if (conf->redirects == NULL) { | |
1870 return NGX_CONF_ERROR; | |
1871 } | |
1872 | |
1873 pr = ngx_array_push(conf->redirects); | |
1874 if (pr == NULL) { | |
1875 return NGX_CONF_ERROR; | |
1876 } | |
1877 | |
1878 pr->handler = ngx_http_proxy_rewrite_redirect_text; | |
1658 | 1879 pr->redirect = conf->url; |
1880 | |
1881 if (conf->vars.uri.len) { | |
1882 pr->replacement.text = conf->location; | |
653 | 1883 |
1884 } else { | |
1885 pr->replacement.text.len = 0; | |
1886 pr->replacement.text.data = NULL; | |
1887 } | |
509 | 1888 } |
1889 } | |
1890 | |
1658 | 1891 /* STUB */ |
1892 if (prev->proxy_lengths) { | |
1893 conf->proxy_lengths = prev->proxy_lengths; | |
1894 conf->proxy_values = prev->proxy_values; | |
1895 } | |
1896 | |
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1897 ngx_conf_merge_uint_value(conf->headers_hash_max_size, |
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1898 prev->headers_hash_max_size, 512); |
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1899 |
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1900 ngx_conf_merge_uint_value(conf->headers_hash_bucket_size, |
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1901 prev->headers_hash_bucket_size, 64); |
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1902 |
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1903 conf->headers_hash_bucket_size = ngx_align(conf->headers_hash_bucket_size, |
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1904 ngx_cacheline_size); |
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1905 |
1701
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1906 hash.max_size = conf->headers_hash_max_size; |
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1907 hash.bucket_size = conf->headers_hash_bucket_size; |
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1908 hash.name = "proxy_headers_hash"; |
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1909 |
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1910 if (ngx_http_upstream_hide_headers_hash(cf, &conf->upstream, |
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1911 &prev->upstream, |
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1912 ngx_http_proxy_hide_headers, &hash) |
649 | 1913 != NGX_OK) |
1914 { | |
1915 return NGX_CONF_ERROR; | |
1916 } | |
1917 | |
884 | 1918 if (conf->upstream.upstream == NULL) { |
1919 conf->upstream.upstream = prev->upstream.upstream; | |
629 | 1920 |
1658 | 1921 conf->vars = prev->vars; |
629 | 1922 conf->upstream.schema = prev->upstream.schema; |
507 | 1923 } |
1924 | |
577 | 1925 |
1926 if (conf->body_source.data == NULL) { | |
1927 conf->body_source = prev->body_source; | |
1928 conf->body_set_len = prev->body_set_len; | |
1929 conf->body_set = prev->body_set; | |
1930 } | |
1931 | |
579 | 1932 if (conf->body_source.data && conf->body_set_len == NULL) { |
577 | 1933 |
1934 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
1935 | |
1936 sc.cf = cf; | |
1937 sc.source = &conf->body_source; | |
1938 sc.flushes = &conf->flushes; | |
1939 sc.lengths = &conf->body_set_len; | |
1940 sc.values = &conf->body_set; | |
1941 sc.complete_lengths = 1; | |
1942 sc.complete_values = 1; | |
1943 | |
1944 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
1945 return NGX_CONF_ERROR; | |
1946 } | |
1947 | |
1948 if (conf->headers_source == NULL) { | |
1949 conf->headers_source = ngx_array_create(cf->pool, 4, | |
649 | 1950 sizeof(ngx_keyval_t)); |
577 | 1951 if (conf->headers_source == NULL) { |
1952 return NGX_CONF_ERROR; | |
1953 } | |
1954 } | |
1955 | |
1956 s = ngx_array_push(conf->headers_source); | |
1957 if (s == NULL) { | |
1958 return NGX_CONF_ERROR; | |
1959 } | |
1960 | |
1961 s->key.len = sizeof("Content-Length") - 1; | |
1962 s->key.data = (u_char *) "Content-Length"; | |
1963 s->value.len = sizeof("$proxy_internal_body_length") - 1; | |
1964 s->value.data = (u_char *) "$proxy_internal_body_length"; | |
1965 } | |
1966 | |
1967 | |
509 | 1968 if (conf->headers_source == NULL) { |
573 | 1969 conf->flushes = prev->flushes; |
507 | 1970 conf->headers_set_len = prev->headers_set_len; |
1971 conf->headers_set = prev->headers_set; | |
1972 conf->headers_set_hash = prev->headers_set_hash; | |
573 | 1973 conf->headers_source = prev->headers_source; |
507 | 1974 } |
1975 | |
649 | 1976 if (conf->headers_set_hash.buckets) { |
509 | 1977 return NGX_CONF_OK; |
1978 } | |
1979 | |
1980 | |
649 | 1981 conf->headers_names = ngx_array_create(cf->pool, 4, sizeof(ngx_hash_key_t)); |
509 | 1982 if (conf->headers_names == NULL) { |
1983 return NGX_CONF_ERROR; | |
1984 } | |
1985 | |
1986 if (conf->headers_source == NULL) { | |
1987 conf->headers_source = ngx_array_create(cf->pool, 4, | |
649 | 1988 sizeof(ngx_keyval_t)); |
509 | 1989 if (conf->headers_source == NULL) { |
1990 return NGX_CONF_ERROR; | |
1991 } | |
1992 } | |
507 | 1993 |
509 | 1994 conf->headers_set_len = ngx_array_create(cf->pool, 64, 1); |
1995 if (conf->headers_set_len == NULL) { | |
1996 return NGX_CONF_ERROR; | |
1997 } | |
1998 | |
1999 conf->headers_set = ngx_array_create(cf->pool, 512, 1); | |
2000 if (conf->headers_set == NULL) { | |
2001 return NGX_CONF_ERROR; | |
2002 } | |
2003 | |
2004 | |
2005 src = conf->headers_source->elts; | |
2006 | |
2007 for (h = ngx_http_proxy_headers; h->key.len; h++) { | |
2008 | |
2009 for (i = 0; i < conf->headers_source->nelts; i++) { | |
2010 if (ngx_strcasecmp(h->key.data, src[i].key.data) == 0) { | |
2011 goto next; | |
507 | 2012 } |
2013 } | |
2014 | |
509 | 2015 s = ngx_array_push(conf->headers_source); |
2016 if (s == NULL) { | |
507 | 2017 return NGX_CONF_ERROR; |
2018 } | |
2019 | |
509 | 2020 *s = *h; |
507 | 2021 |
517 | 2022 src = conf->headers_source->elts; |
2023 | |
509 | 2024 next: |
507 | 2025 |
509 | 2026 continue; |
2027 } | |
507 | 2028 |
577 | 2029 |
2030 src = conf->headers_source->elts; | |
509 | 2031 for (i = 0; i < conf->headers_source->nelts; i++) { |
507 | 2032 |
649 | 2033 hk = ngx_array_push(conf->headers_names); |
2034 if (hk == NULL) { | |
507 | 2035 return NGX_CONF_ERROR; |
2036 } | |
2037 | |
649 | 2038 hk->key = src[i].key; |
2039 hk->key_hash = ngx_hash_key_lc(src[i].key.data, src[i].key.len); | |
2040 hk->value = (void *) 1; | |
509 | 2041 |
519 | 2042 if (src[i].value.len == 0) { |
2043 continue; | |
2044 } | |
2045 | |
509 | 2046 if (ngx_http_script_variables_count(&src[i].value) == 0) { |
2047 copy = ngx_array_push_n(conf->headers_set_len, | |
2048 sizeof(ngx_http_script_copy_code_t)); | |
2049 if (copy == NULL) { | |
2050 return NGX_CONF_ERROR; | |
2051 } | |
2052 | |
2053 copy->code = (ngx_http_script_code_pt) | |
2054 ngx_http_script_copy_len_code; | |
2055 copy->len = src[i].key.len + sizeof(": ") - 1 | |
2056 + src[i].value.len + sizeof(CRLF) - 1; | |
507 | 2057 |
2058 | |
509 | 2059 size = (sizeof(ngx_http_script_copy_code_t) |
2060 + src[i].key.len + sizeof(": ") - 1 | |
2061 + src[i].value.len + sizeof(CRLF) - 1 | |
2062 + sizeof(uintptr_t) - 1) | |
2063 & ~(sizeof(uintptr_t) - 1); | |
2064 | |
2065 copy = ngx_array_push_n(conf->headers_set, size); | |
2066 if (copy == NULL) { | |
2067 return NGX_CONF_ERROR; | |
2068 } | |
2069 | |
2070 copy->code = ngx_http_script_copy_code; | |
2071 copy->len = src[i].key.len + sizeof(": ") - 1 | |
2072 + src[i].value.len + sizeof(CRLF) - 1; | |
2073 | |
2074 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t); | |
2075 | |
2076 p = ngx_cpymem(p, src[i].key.data, src[i].key.len); | |
2077 *p++ = ':'; *p++ = ' '; | |
2078 p = ngx_cpymem(p, src[i].value.data, src[i].value.len); | |
2079 *p++ = CR; *p = LF; | |
2080 | |
2081 } else { | |
2082 copy = ngx_array_push_n(conf->headers_set_len, | |
2083 sizeof(ngx_http_script_copy_code_t)); | |
2084 if (copy == NULL) { | |
2085 return NGX_CONF_ERROR; | |
2086 } | |
2087 | |
2088 copy->code = (ngx_http_script_code_pt) | |
2089 ngx_http_script_copy_len_code; | |
2090 copy->len = src[i].key.len + sizeof(": ") - 1; | |
507 | 2091 |
2092 | |
509 | 2093 size = (sizeof(ngx_http_script_copy_code_t) |
2094 + src[i].key.len + sizeof(": ") - 1 + sizeof(uintptr_t) - 1) | |
2095 & ~(sizeof(uintptr_t) - 1); | |
2096 | |
2097 copy = ngx_array_push_n(conf->headers_set, size); | |
2098 if (copy == NULL) { | |
2099 return NGX_CONF_ERROR; | |
2100 } | |
2101 | |
2102 copy->code = ngx_http_script_copy_code; | |
2103 copy->len = src[i].key.len + sizeof(": ") - 1; | |
2104 | |
2105 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t); | |
2106 p = ngx_cpymem(p, src[i].key.data, src[i].key.len); | |
2107 *p++ = ':'; *p = ' '; | |
2108 | |
2109 | |
2110 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
2111 | |
2112 sc.cf = cf; | |
2113 sc.source = &src[i].value; | |
573 | 2114 sc.flushes = &conf->flushes; |
509 | 2115 sc.lengths = &conf->headers_set_len; |
2116 sc.values = &conf->headers_set; | |
2117 | |
2118 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
2119 return NGX_CONF_ERROR; | |
2120 } | |
2121 | |
2122 | |
2123 copy = ngx_array_push_n(conf->headers_set_len, | |
2124 sizeof(ngx_http_script_copy_code_t)); | |
2125 if (copy == NULL) { | |
2126 return NGX_CONF_ERROR; | |
2127 } | |
2128 | |
2129 copy->code = (ngx_http_script_code_pt) | |
2130 ngx_http_script_copy_len_code; | |
2131 copy->len = sizeof(CRLF) - 1; | |
2132 | |
2133 | |
2134 size = (sizeof(ngx_http_script_copy_code_t) | |
2135 + sizeof(CRLF) - 1 + sizeof(uintptr_t) - 1) | |
2136 & ~(sizeof(uintptr_t) - 1); | |
2137 | |
2138 copy = ngx_array_push_n(conf->headers_set, size); | |
2139 if (copy == NULL) { | |
2140 return NGX_CONF_ERROR; | |
2141 } | |
2142 | |
2143 copy->code = ngx_http_script_copy_code; | |
2144 copy->len = sizeof(CRLF) - 1; | |
2145 | |
2146 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t); | |
2147 *p++ = CR; *p = LF; | |
507 | 2148 } |
2149 | |
509 | 2150 code = ngx_array_push_n(conf->headers_set_len, sizeof(uintptr_t)); |
2151 if (code == NULL) { | |
507 | 2152 return NGX_CONF_ERROR; |
2153 } | |
2154 | |
509 | 2155 *code = (uintptr_t) NULL; |
2156 | |
2157 code = ngx_array_push_n(conf->headers_set, sizeof(uintptr_t)); | |
2158 if (code == NULL) { | |
2159 return NGX_CONF_ERROR; | |
2160 } | |
2161 | |
2162 *code = (uintptr_t) NULL; | |
507 | 2163 } |
2164 | |
509 | 2165 code = ngx_array_push_n(conf->headers_set_len, sizeof(uintptr_t)); |
2166 if (code == NULL) { | |
2167 return NGX_CONF_ERROR; | |
507 | 2168 } |
2169 | |
509 | 2170 *code = (uintptr_t) NULL; |
507 | 2171 |
2172 | |
649 | 2173 hash.hash = &conf->headers_set_hash; |
2174 hash.key = ngx_hash_key_lc; | |
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2175 hash.max_size = conf->headers_hash_max_size; |
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2176 hash.bucket_size = conf->headers_hash_bucket_size; |
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2177 hash.name = "proxy_headers_hash"; |
649 | 2178 hash.pool = cf->pool; |
2179 hash.temp_pool = NULL; | |
2180 | |
2181 if (ngx_hash_init(&hash, conf->headers_names->elts, | |
2182 conf->headers_names->nelts) | |
2183 != NGX_OK) | |
2184 { | |
2185 return NGX_CONF_ERROR; | |
2186 } | |
2187 | |
509 | 2188 return NGX_CONF_OK; |
507 | 2189 } |
2190 | |
2191 | |
2192 static char * | |
2193 ngx_http_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
2194 { | |
509 | 2195 ngx_http_proxy_loc_conf_t *plcf = conf; |
507 | 2196 |
1658 | 2197 size_t add; |
2198 u_short port; | |
2199 ngx_str_t *value, *url; | |
2200 ngx_url_t u; | |
2201 ngx_uint_t n; | |
2202 ngx_http_core_loc_conf_t *clcf; | |
2203 ngx_http_script_compile_t sc; | |
507 | 2204 |
555 | 2205 if (plcf->upstream.schema.len) { |
2206 return "is duplicate"; | |
2207 } | |
2208 | |
1658 | 2209 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); |
2210 | |
507 | 2211 value = cf->args->elts; |
2212 | |
2213 url = &value[1]; | |
2214 | |
1658 | 2215 n = ngx_http_script_variables_count(url); |
2216 | |
2217 if (n) { | |
2218 | |
2219 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
2220 | |
2221 sc.cf = cf; | |
2222 sc.source = url; | |
2223 sc.lengths = &plcf->proxy_lengths; | |
2224 sc.values = &plcf->proxy_values; | |
2225 sc.variables = n; | |
2226 sc.complete_lengths = 1; | |
2227 sc.complete_values = 1; | |
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diff
changeset
|
2228 |
1658 | 2229 if (ngx_http_script_compile(&sc) != NGX_OK) { |
2230 return NGX_CONF_ERROR; | |
2231 } | |
2232 | |
2233 #if (NGX_HTTP_SSL) | |
2234 if (ngx_http_proxy_set_ssl(cf, plcf) != NGX_OK) { | |
2235 return NGX_CONF_ERROR; | |
2236 } | |
2237 #endif | |
2238 | |
2239 clcf->handler = ngx_http_proxy_handler; | |
2240 | |
2241 return NGX_CONF_OK; | |
2242 } | |
2243 | |
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2244 if (ngx_strncasecmp(url->data, (u_char *) "http://", 7) == 0) { |
577 | 2245 add = 7; |
591 | 2246 port = 80; |
577 | 2247 |
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2248 } else if (ngx_strncasecmp(url->data, (u_char *) "https://", 8) == 0) { |
577 | 2249 |
2250 #if (NGX_HTTP_SSL) | |
1658 | 2251 if (ngx_http_proxy_set_ssl(cf, plcf) != NGX_OK) { |
2252 return NGX_CONF_ERROR; | |
2253 } | |
577 | 2254 |
2255 add = 8; | |
591 | 2256 port = 443; |
577 | 2257 #else |
2258 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
2259 "https protocol requires SSL support"); | |
2260 return NGX_CONF_ERROR; | |
2261 #endif | |
2262 | |
2263 } else { | |
507 | 2264 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid URL prefix"); |
2265 return NGX_CONF_ERROR; | |
2266 } | |
2267 | |
651 | 2268 ngx_memzero(&u, sizeof(ngx_url_t)); |
2269 | |
2270 u.url.len = url->len - add; | |
2271 u.url.data = url->data + add; | |
906 | 2272 u.default_port = port; |
2273 u.uri_part = 1; | |
884 | 2274 u.no_resolve = 1; |
2275 | |
2276 plcf->upstream.upstream = ngx_http_upstream_add(cf, &u, 0); | |
2277 if (plcf->upstream.upstream == NULL) { | |
507 | 2278 return NGX_CONF_ERROR; |
2279 } | |
2280 | |
1658 | 2281 if (ngx_http_proxy_set_vars(cf->pool, &u, &plcf->vars) != NGX_OK) { |
2282 return NGX_CONF_ERROR; | |
906 | 2283 } |
2284 | |
591 | 2285 plcf->upstream.schema.len = add; |
2286 plcf->upstream.schema.data = url->data; | |
1658 | 2287 plcf->location = clcf->name; |
507 | 2288 |
2289 clcf->handler = ngx_http_proxy_handler; | |
2290 | |
1353 | 2291 if (clcf->named |
507 | 2292 #if (NGX_PCRE) |
1353 | 2293 || clcf->regex |
2294 #endif | |
2295 || clcf->noname) | |
2296 { | |
1658 | 2297 if (plcf->vars.uri.len) { |
573 | 2298 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
2299 "\"proxy_pass\" may not have URI part in " | |
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parents:
812
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changeset
|
2300 "location given by regular expression, " |
1353 | 2301 "or inside named location, " |
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2302 "or inside the \"if\" statement, " |
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changeset
|
2303 "or inside the \"limit_except\" block"); |
573 | 2304 return NGX_CONF_ERROR; |
2305 } | |
2306 | |
1658 | 2307 plcf->location.len = 0; |
555 | 2308 } |
2309 | |
1658 | 2310 plcf->url = *url; |
509 | 2311 |
507 | 2312 if (clcf->name.data[clcf->name.len - 1] == '/') { |
2313 clcf->auto_redirect = 1; | |
2314 } | |
2315 | |
2316 return NGX_CONF_OK; | |
2317 } | |
2318 | |
2319 | |
2320 static char * | |
509 | 2321 ngx_http_proxy_redirect(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
507 | 2322 { |
509 | 2323 ngx_http_proxy_loc_conf_t *plcf = conf; |
2324 | |
2325 ngx_str_t *value; | |
2326 ngx_array_t *vars_lengths, *vars_values; | |
2327 ngx_http_script_compile_t sc; | |
2328 ngx_http_proxy_redirect_t *pr; | |
2329 | |
2330 if (plcf->redirect == 0) { | |
2331 return NGX_CONF_OK; | |
2332 } | |
2333 | |
2334 value = cf->args->elts; | |
2335 | |
2336 if (ngx_strcmp(value[1].data, "off") == 0) { | |
2337 plcf->redirect = 0; | |
2338 plcf->redirects = NULL; | |
2339 return NGX_CONF_OK; | |
2340 } | |
2341 | |
2342 if (plcf->redirects == NULL) { | |
2343 plcf->redirects = ngx_array_create(cf->pool, 1, | |
2344 sizeof(ngx_http_proxy_redirect_t)); | |
2345 if (plcf->redirects == NULL) { | |
2346 return NGX_CONF_ERROR; | |
2347 } | |
2348 } | |
2349 | |
2350 pr = ngx_array_push(plcf->redirects); | |
2351 if (pr == NULL) { | |
2352 return NGX_CONF_ERROR; | |
2353 } | |
2354 | |
2355 if (cf->args->nelts == 2 && ngx_strcmp(value[1].data, "default") == 0) { | |
1658 | 2356 if (plcf->url.data == NULL) { |
509 | 2357 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
2358 "\"proxy_rewrite_location default\" must go " | |
2359 "after the \"proxy_pass\" directive"); | |
2360 return NGX_CONF_ERROR; | |
2361 } | |
2362 | |
2363 pr->handler = ngx_http_proxy_rewrite_redirect_text; | |
1658 | 2364 pr->redirect = plcf->url; |
2365 | |
2366 if (plcf->vars.uri.len) { | |
2367 pr->replacement.text = plcf->location; | |
653 | 2368 |
2369 } else { | |
2370 pr->replacement.text.len = 0; | |
2371 pr->replacement.text.data = NULL; | |
2372 } | |
509 | 2373 |
2374 return NGX_CONF_OK; | |
2375 } | |
2376 | |
2377 if (ngx_http_script_variables_count(&value[2]) == 0) { | |
2378 pr->handler = ngx_http_proxy_rewrite_redirect_text; | |
2379 pr->redirect = value[1]; | |
2380 pr->replacement.text = value[2]; | |
2381 | |
2382 return NGX_CONF_OK; | |
2383 } | |
2384 | |
2385 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
2386 | |
2387 vars_lengths = NULL; | |
2388 vars_values = NULL; | |
2389 | |
2390 sc.cf = cf; | |
2391 sc.source = &value[2]; | |
2392 sc.lengths = &vars_lengths; | |
2393 sc.values = &vars_values; | |
2394 sc.complete_lengths = 1; | |
2395 sc.complete_values = 1; | |
2396 | |
2397 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
2398 return NGX_CONF_ERROR; | |
2399 } | |
2400 | |
2401 pr->handler = ngx_http_proxy_rewrite_redirect_vars; | |
2402 pr->redirect = value[1]; | |
2403 pr->replacement.vars.lengths = vars_lengths->elts; | |
2404 pr->replacement.vars.values = vars_values->elts; | |
2405 | |
507 | 2406 return NGX_CONF_OK; |
2407 } | |
2408 | |
2409 | |
2410 static char * | |
1295
5383f5232364
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Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2411 ngx_http_proxy_store(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
5383f5232364
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parents:
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|
2412 { |
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parents:
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diff
changeset
|
2413 ngx_http_proxy_loc_conf_t *plcf = conf; |
5383f5232364
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parents:
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diff
changeset
|
2414 |
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parents:
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diff
changeset
|
2415 ngx_str_t *value; |
5383f5232364
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Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2416 ngx_http_script_compile_t sc; |
5383f5232364
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parents:
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diff
changeset
|
2417 |
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diff
changeset
|
2418 if (plcf->upstream.store != NGX_CONF_UNSET || plcf->upstream.store_lengths) |
5383f5232364
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parents:
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diff
changeset
|
2419 { |
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parents:
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diff
changeset
|
2420 return "is duplicate"; |
5383f5232364
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parents:
1291
diff
changeset
|
2421 } |
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parents:
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diff
changeset
|
2422 |
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parents:
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diff
changeset
|
2423 value = cf->args->elts; |
5383f5232364
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parents:
1291
diff
changeset
|
2424 |
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parents:
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diff
changeset
|
2425 if (ngx_strcmp(value[1].data, "on") == 0) { |
5383f5232364
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Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2426 plcf->upstream.store = 1; |
5383f5232364
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parents:
1291
diff
changeset
|
2427 return NGX_CONF_OK; |
5383f5232364
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Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2428 } |
5383f5232364
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Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2429 |
5383f5232364
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parents:
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diff
changeset
|
2430 if (ngx_strcmp(value[1].data, "off") == 0) { |
5383f5232364
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Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2431 plcf->upstream.store = 0; |
5383f5232364
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Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2432 return NGX_CONF_OK; |
5383f5232364
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Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2433 } |
5383f5232364
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parents:
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diff
changeset
|
2434 |
5383f5232364
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parents:
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diff
changeset
|
2435 /* include the terminating '\0' into script */ |
5383f5232364
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Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2436 value[1].len++; |
5383f5232364
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Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2437 |
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2438 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); |
5383f5232364
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
2439 |
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2440 sc.cf = cf; |
5383f5232364
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Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2441 sc.source = &value[1]; |
5383f5232364
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Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2442 sc.lengths = &plcf->upstream.store_lengths; |
5383f5232364
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Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2443 sc.values = &plcf->upstream.store_values; |
1563
022ec9420f80
style fix: remove double semicolons
Igor Sysoev <igor@sysoev.ru>
parents:
1488
diff
changeset
|
2444 sc.variables = ngx_http_script_variables_count(&value[1]); |
1295
5383f5232364
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Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2445 sc.complete_lengths = 1; |
5383f5232364
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Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2446 sc.complete_values = 1; |
5383f5232364
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Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2447 |
5383f5232364
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Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2448 if (ngx_http_script_compile(&sc) != NGX_OK) { |
5383f5232364
proxy_store and fastcgi_store were changed,
Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2449 return NGX_CONF_ERROR; |
5383f5232364
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Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2450 } |
5383f5232364
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
2451 |
5383f5232364
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Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2452 return NGX_CONF_OK; |
5383f5232364
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Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2453 } |
5383f5232364
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Igor Sysoev <igor@sysoev.ru>
parents:
1291
diff
changeset
|
2454 |
5383f5232364
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parents:
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diff
changeset
|
2455 |
5383f5232364
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parents:
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diff
changeset
|
2456 static char * |
507 | 2457 ngx_http_proxy_lowat_check(ngx_conf_t *cf, void *post, void *data) |
2458 { | |
2459 #if (NGX_FREEBSD) | |
2460 ssize_t *np = data; | |
2461 | |
673 | 2462 if ((u_long) *np >= ngx_freebsd_net_inet_tcp_sendspace) { |
507 | 2463 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
2464 "\"proxy_send_lowat\" must be less than %d " | |
2465 "(sysctl net.inet.tcp.sendspace)", | |
2466 ngx_freebsd_net_inet_tcp_sendspace); | |
2467 | |
2468 return NGX_CONF_ERROR; | |
2469 } | |
2470 | |
2471 #elif !(NGX_HAVE_SO_SNDLOWAT) | |
2472 ssize_t *np = data; | |
2473 | |
2474 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, | |
2475 "\"proxy_send_lowat\" is not supported, ignored"); | |
2476 | |
2477 *np = 0; | |
2478 | |
2479 #endif | |
2480 | |
2481 return NGX_CONF_OK; | |
2482 } | |
884 | 2483 |
2484 | |
2485 static char * | |
2486 ngx_http_proxy_upstream_max_fails_unsupported(ngx_conf_t *cf, | |
2487 ngx_command_t *cmd, void *conf) | |
2488 { | |
2489 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
2490 "\"proxy_upstream_max_fails\" is not supported, " | |
2491 "use the \"max_fails\" parameter of the \"server\" directive ", | |
2492 "inside the \"upstream\" block"); | |
2493 | |
2494 return NGX_CONF_ERROR; | |
2495 } | |
2496 | |
2497 | |
2498 static char * | |
2499 ngx_http_proxy_upstream_fail_timeout_unsupported(ngx_conf_t *cf, | |
2500 ngx_command_t *cmd, void *conf) | |
2501 { | |
2502 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
2503 "\"proxy_upstream_fail_timeout\" is not supported, " | |
2504 "use the \"fail_timeout\" parameter of the \"server\" directive ", | |
2505 "inside the \"upstream\" block"); | |
2506 | |
2507 return NGX_CONF_ERROR; | |
2508 } | |
1658 | 2509 |
2510 | |
2511 #if (NGX_HTTP_SSL) | |
2512 | |
2513 static ngx_int_t | |
2514 ngx_http_proxy_set_ssl(ngx_conf_t *cf, ngx_http_proxy_loc_conf_t *plcf) | |
2515 { | |
2516 ngx_pool_cleanup_t *cln; | |
2517 | |
2518 plcf->upstream.ssl = ngx_pcalloc(cf->pool, sizeof(ngx_ssl_t)); | |
2519 if (plcf->upstream.ssl == NULL) { | |
2520 return NGX_ERROR; | |
2521 } | |
2522 | |
2523 plcf->upstream.ssl->log = cf->log; | |
2524 | |
2525 if (ngx_ssl_create(plcf->upstream.ssl, | |
2526 NGX_SSL_SSLv2|NGX_SSL_SSLv3|NGX_SSL_TLSv1, NULL) | |
2527 != NGX_OK) | |
2528 { | |
2529 return NGX_ERROR; | |
2530 } | |
2531 | |
2532 cln = ngx_pool_cleanup_add(cf->pool, 0); | |
2533 if (cln == NULL) { | |
2534 return NGX_ERROR; | |
2535 } | |
2536 | |
2537 cln->handler = ngx_ssl_cleanup_ctx; | |
2538 cln->data = plcf->upstream.ssl; | |
2539 | |
2540 return NGX_OK; | |
2541 } | |
2542 | |
2543 #endif | |
2544 | |
2545 | |
2546 static ngx_int_t | |
2547 ngx_http_proxy_set_vars(ngx_pool_t *pool, ngx_url_t *u, | |
2548 ngx_http_proxy_vars_t *v) | |
2549 { | |
2203
8e5bf1bc87e2
*) refactor ngx_parse_inet_url()
Igor Sysoev <igor@sysoev.ru>
parents:
2184
diff
changeset
|
2550 if (u->family != AF_UNIX) { |
1658 | 2551 if (u->no_port || u->port == u->default_port) { |
2552 v->host_header = u->host; | |
2553 | |
2554 if (u->default_port == 80) { | |
2555 v->port.len = sizeof("80") - 1; | |
2556 v->port.data = (u_char *) "80"; | |
2557 | |
2558 } else { | |
2559 v->port.len = sizeof("443") - 1; | |
2560 v->port.data = (u_char *) "443"; | |
2561 } | |
2562 | |
2563 } else { | |
1671
8075179cae21
ngx_parse_url() saves port text, this allows to use it in proxy host header
Igor Sysoev <igor@sysoev.ru>
parents:
1667
diff
changeset
|
2564 v->host_header.len = u->host.len + 1 + u->port_text.len; |
8075179cae21
ngx_parse_url() saves port text, this allows to use it in proxy host header
Igor Sysoev <igor@sysoev.ru>
parents:
1667
diff
changeset
|
2565 v->host_header.data = u->host.data; |
8075179cae21
ngx_parse_url() saves port text, this allows to use it in proxy host header
Igor Sysoev <igor@sysoev.ru>
parents:
1667
diff
changeset
|
2566 v->port = u->port_text; |
1658 | 2567 } |
2568 | |
2569 } else { | |
2570 v->host_header.len = sizeof("localhost") - 1; | |
2571 v->host_header.data = (u_char *) "localhost"; | |
2572 v->port.len = 0; | |
2573 v->port.data = (u_char *) ""; | |
2574 } | |
2575 | |
2576 v->uri = u->uri; | |
2577 | |
2578 return NGX_OK; | |
2579 } |