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comparison src/http/modules/ngx_http_proxy_module.c @ 509:9b8c906f6e63 release-0.1.29

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nginx-0.1.29-RELEASE import *) Feature: the ngx_http_ssi_module supports "include virtual" command. *) Feature: the ngx_http_ssi_module supports the condition command like 'if expr="$NAME"' and "else" and "endif" commands. Only one nested level is supported. *) Feature: the ngx_http_ssi_module supports the DATE_LOCAL and DATE_GMT variables and "config timefmt" command. *) Feature: the "ssi_ignore_recycled_buffers" directive. *) Bugfix: the "echo" command did not show the default value for the empty QUERY_STRING variable. *) Change: the ngx_http_proxy_module was rewritten. *) Feature: the "proxy_redirect", "proxy_pass_request_headers", "proxy_pass_request_body", and "proxy_method" directives. *) Feature: the "proxy_set_header" directive. The "proxy_x_var" was canceled and must be replaced with the proxy_set_header directive. *) Change: the "proxy_preserve_host" is canceled and must be replaced with the "proxy_set_header Host $host" and the "proxy_redirect off" directives, the "proxy_set_header Host $host:$proxy_port" directive and the appropriate proxy_redirect directives. *) Change: the "proxy_set_x_real_ip" is canceled and must be replaced with the "proxy_set_header X-Real-IP $remote_addr" directive. *) Change: the "proxy_add_x_forwarded_for" is canceled and must be replaced with the "proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for" directive. *) Change: the "proxy_set_x_url" is canceled and must be replaced with the "proxy_set_header X-URL http://$host:$server_port$request_uri" directive. *) Feature: the "fastcgi_param" directive. *) Change: the "fastcgi_root", "fastcgi_set_var" and "fastcgi_params" directive are canceled and must be replaced with the fastcgi_param directives. *) Feature: the "index" directive can use the variables. *) Feature: the "index" directive can be used at http and server levels. *) Change: the last index only in the "index" directive can be absolute. *) Feature: the "rewrite" directive can use the variables. *) Feature: the "internal" directive. *) Feature: the CONTENT_LENGTH, CONTENT_TYPE, REMOTE_PORT, SERVER_ADDR, SERVER_PORT, SERVER_PROTOCOL, DOCUMENT_ROOT, SERVER_NAME, REQUEST_METHOD, REQUEST_URI, and REMOTE_USER variables. *) Change: nginx now passes the invalid lines in a client request headers or a backend response header. *) Bugfix: if the backend did not transfer response for a long time and the "send_timeout" was less than "proxy_read_timeout", then nginx returned the 408 response. *) Bugfix: the segmentation fault was occurred if the backend sent an invalid line in response header; the bug had appeared in 0.1.26. *) Bugfix: the segmentation fault may occurred in FastCGI fault tolerance configuration. *) Bugfix: the "expires" directive did not remove the previous "Expires" and "Cache-Control" headers. *) Bugfix: nginx did not take into account trailing dot in "Host" header line. *) Bugfix: the ngx_http_auth_module did not work under Linux. *) Bugfix: the rewrite directive worked incorrectly, if the arguments were in a request. *) Bugfix: nginx could not be built on MacOS X.
author Igor Sysoev <igor@sysoev.ru>
date Thu, 12 May 2005 14:58:06 +0000
parents cd3117ad9aab
children 417a087c9c4d
comparison
equal deleted inserted replaced
508:ca1020ce99ba 509:9b8c906f6e63
8 #include <ngx_core.h> 8 #include <ngx_core.h>
9 #include <ngx_event.h> 9 #include <ngx_event.h>
10 #include <ngx_http.h> 10 #include <ngx_http.h>
11 11
12 12
13 typedef struct ngx_http_proxy_redirect_s ngx_http_proxy_redirect_t;
14
15 typedef ngx_int_t (*ngx_http_proxy_redirect_pt)(ngx_http_request_t *r,
16 ngx_table_elt_t *h, size_t prefix, ngx_http_proxy_redirect_t *pr);
17
18 struct ngx_http_proxy_redirect_s {
19 ngx_http_proxy_redirect_pt handler;
20 ngx_str_t redirect;
21
22 union {
23 ngx_str_t text;
24
25 struct {
26 void *lengths;
27 void *values;
28 } vars;
29
30 void *regex;
31 } replacement;
32 };
33
34
13 typedef struct { 35 typedef struct {
14 ngx_http_upstream_conf_t upstream; 36 ngx_http_upstream_conf_t upstream;
15 37
16 ngx_peers_t *peers; 38 ngx_peers_t *peers;
17 39
18 ngx_array_t *headers_set_len; 40 ngx_array_t *headers_set_len;
19 ngx_array_t *headers_set; 41 ngx_array_t *headers_set;
20 ngx_hash_t *headers_set_hash; 42 ngx_hash_t *headers_set_hash;
21 43
22 ngx_flag_t preserve_host; 44 ngx_array_t *headers_source;
23 ngx_flag_t set_x_url; 45 ngx_array_t *headers_names;
24 ngx_flag_t set_x_real_ip; 46
25 ngx_flag_t add_x_forwarded_for; 47 ngx_array_t *redirects;
26 ngx_flag_t pass_server; 48
27 ngx_flag_t pass_x_accel_expires; 49 ngx_str_t host_header;
28 50 ngx_str_t port_text;
29 ngx_str_t *location0; 51
30 52 ngx_flag_t redirect;
31 ngx_str_t host_header;
32 ngx_str_t uri0;
33
34 ngx_array_t *headers_sources;
35 ngx_array_t *headers_names;
36 } ngx_http_proxy_loc_conf_t; 53 } ngx_http_proxy_loc_conf_t;
37 54
38 55
39 typedef struct { 56 typedef struct {
40 ngx_list_t headers; 57 ngx_uint_t status;
41 58 ngx_uint_t status_count;
42 ngx_table_elt_t *date; 59 u_char *status_start;
43 ngx_table_elt_t *server; 60 u_char *status_end;
44 61 } ngx_http_proxy_ctx_t;
45 ngx_table_elt_t *expires; 62
46 ngx_table_elt_t *cache_control; 63
47 ngx_table_elt_t *etag; 64 #define NGX_HTTP_PROXY_PARSE_NO_HEADER 20
48 ngx_table_elt_t *x_accel_expires;
49
50 ngx_table_elt_t *connection;
51 ngx_table_elt_t *content_type;
52 ngx_table_elt_t *content_length;
53
54 #if (NGX_HTTP_GZIP)
55 ngx_table_elt_t *content_encoding;
56 #endif
57
58 ngx_table_elt_t *last_modified;
59 ngx_table_elt_t *location;
60 ngx_table_elt_t *accept_ranges;
61 ngx_table_elt_t *x_pad;
62
63 off_t content_length_n;
64 } ngx_http_proxy_headers_in_t;
65 65
66 66
67 static ngx_int_t ngx_http_proxy_create_request(ngx_http_request_t *r); 67 static ngx_int_t ngx_http_proxy_create_request(ngx_http_request_t *r);
68 static ngx_int_t ngx_http_proxy_reinit_request(ngx_http_request_t *r); 68 static ngx_int_t ngx_http_proxy_reinit_request(ngx_http_request_t *r);
69 static ngx_int_t ngx_http_proxy_process_status_line(ngx_http_request_t *r);
70 static ngx_int_t ngx_http_proxy_parse_status_line(ngx_http_request_t *r,
71 ngx_http_proxy_ctx_t *p);
69 static ngx_int_t ngx_http_proxy_process_header(ngx_http_request_t *r); 72 static ngx_int_t ngx_http_proxy_process_header(ngx_http_request_t *r);
70 static ngx_int_t ngx_http_proxy_send_header(ngx_http_request_t *r);
71 static void ngx_http_proxy_abort_request(ngx_http_request_t *r); 73 static void ngx_http_proxy_abort_request(ngx_http_request_t *r);
72 static void ngx_http_proxy_finalize_request(ngx_http_request_t *r, 74 static void ngx_http_proxy_finalize_request(ngx_http_request_t *r,
73 ngx_int_t rc); 75 ngx_int_t rc);
74 76
75 static ngx_int_t ngx_http_proxy_compile_header_start(ngx_table_elt_t *h, 77 static ngx_http_variable_value_t *
76 ngx_array_t *lengths, ngx_array_t *values, ngx_uint_t value); 78 ngx_http_proxy_host_variable(ngx_http_request_t *r, uintptr_t data);
77 static ngx_int_t ngx_http_proxy_compile_header_end(ngx_array_t *lengths, 79 static ngx_http_variable_value_t *
78 ngx_array_t *values); 80 ngx_http_proxy_port_variable(ngx_http_request_t *r, uintptr_t data);
79 81 static ngx_http_variable_value_t *
80 static ngx_int_t ngx_http_proxy_init(ngx_cycle_t *cycle); 82 ngx_http_proxy_add_x_forwarded_for_variable(ngx_http_request_t *r,
81 static ngx_http_variable_value_t *ngx_http_proxy_host_variable 83 uintptr_t data);
82 (ngx_http_request_t *r, uintptr_t data); 84 static ngx_int_t ngx_http_proxy_rewrite_redirect(ngx_http_request_t *r,
85 ngx_table_elt_t *h, size_t prefix);
86
87 static ngx_int_t ngx_http_proxy_add_variables(ngx_conf_t *cf);
83 static void *ngx_http_proxy_create_loc_conf(ngx_conf_t *cf); 88 static void *ngx_http_proxy_create_loc_conf(ngx_conf_t *cf);
84 static char *ngx_http_proxy_merge_loc_conf(ngx_conf_t *cf, 89 static char *ngx_http_proxy_merge_loc_conf(ngx_conf_t *cf,
85 void *parent, void *child); 90 void *parent, void *child);
86 91
87 static char *ngx_http_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd, 92 static char *ngx_http_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd,
88 void *conf); 93 void *conf);
89 94 static char *ngx_http_proxy_redirect(ngx_conf_t *cf, ngx_command_t *cmd,
90 static char *ngx_http_proxy_set_x_var(ngx_conf_t *cf, ngx_command_t *cmd,
91 void *conf); 95 void *conf);
96
92 static char *ngx_http_proxy_lowat_check(ngx_conf_t *cf, void *post, void *data); 97 static char *ngx_http_proxy_lowat_check(ngx_conf_t *cf, void *post, void *data);
93 98
99
94 static ngx_conf_post_t ngx_http_proxy_lowat_post = 100 static ngx_conf_post_t ngx_http_proxy_lowat_post =
95 { ngx_http_proxy_lowat_check }; 101 { ngx_http_proxy_lowat_check };
102
103 static ngx_conf_enum_t ngx_http_proxy_set_methods[] = {
104 { ngx_string("get"), NGX_HTTP_GET },
105 { ngx_null_string, 0 }
106 };
96 107
97 static ngx_conf_bitmask_t ngx_http_proxy_next_upstream_masks[] = { 108 static ngx_conf_bitmask_t ngx_http_proxy_next_upstream_masks[] = {
98 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR }, 109 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR },
99 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT }, 110 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT },
100 { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER }, 111 { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER },
111 ngx_http_proxy_pass, 122 ngx_http_proxy_pass,
112 NGX_HTTP_LOC_CONF_OFFSET, 123 NGX_HTTP_LOC_CONF_OFFSET,
113 0, 124 0,
114 NULL }, 125 NULL },
115 126
127 { ngx_string("proxy_redirect"),
128 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12,
129 ngx_http_proxy_redirect,
130 NGX_HTTP_LOC_CONF_OFFSET,
131 0,
132 NULL },
133
116 { ngx_string("proxy_connect_timeout"), 134 { ngx_string("proxy_connect_timeout"),
117 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, 135 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
118 ngx_conf_set_msec_slot, 136 ngx_conf_set_msec_slot,
119 NGX_HTTP_LOC_CONF_OFFSET, 137 NGX_HTTP_LOC_CONF_OFFSET,
120 offsetof(ngx_http_proxy_loc_conf_t, upstream.connect_timeout), 138 offsetof(ngx_http_proxy_loc_conf_t, upstream.connect_timeout),
132 ngx_conf_set_size_slot, 150 ngx_conf_set_size_slot,
133 NGX_HTTP_LOC_CONF_OFFSET, 151 NGX_HTTP_LOC_CONF_OFFSET,
134 offsetof(ngx_http_proxy_loc_conf_t, upstream.send_lowat), 152 offsetof(ngx_http_proxy_loc_conf_t, upstream.send_lowat),
135 &ngx_http_proxy_lowat_post }, 153 &ngx_http_proxy_lowat_post },
136 154
155 { ngx_string("proxy_redirect_errors"),
156 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
157 ngx_conf_set_flag_slot,
158 NGX_HTTP_LOC_CONF_OFFSET,
159 offsetof(ngx_http_proxy_loc_conf_t, upstream.redirect_errors),
160 NULL },
161
137 { ngx_string("proxy_pass_unparsed_uri"), 162 { ngx_string("proxy_pass_unparsed_uri"),
138 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, 163 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
139 ngx_conf_set_flag_slot, 164 ngx_conf_set_flag_slot,
140 NGX_HTTP_LOC_CONF_OFFSET, 165 NGX_HTTP_LOC_CONF_OFFSET,
141 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_unparsed_uri), 166 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_unparsed_uri),
142 NULL }, 167 NULL },
143 168
144 { ngx_string("proxy_preserve_host"), 169 { ngx_string("proxy_set_header"),
170 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2,
171 ngx_conf_set_table_elt_slot,
172 NGX_HTTP_LOC_CONF_OFFSET,
173 offsetof(ngx_http_proxy_loc_conf_t, headers_source),
174 NULL },
175
176 { ngx_string("proxy_method"),
177 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
178 ngx_conf_set_enum_slot,
179 NGX_HTTP_LOC_CONF_OFFSET,
180 offsetof(ngx_http_proxy_loc_conf_t, upstream.method),
181 ngx_http_proxy_set_methods },
182
183 { ngx_string("proxy_pass_request_headers"),
145 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, 184 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
146 ngx_conf_set_flag_slot, 185 ngx_conf_set_flag_slot,
147 NGX_HTTP_LOC_CONF_OFFSET, 186 NGX_HTTP_LOC_CONF_OFFSET,
148 offsetof(ngx_http_proxy_loc_conf_t, preserve_host), 187 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_request_headers),
149 NULL }, 188 NULL },
150 189
151 { ngx_string("proxy_set_x_url"), 190 { ngx_string("proxy_pass_request_body"),
152 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, 191 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
153 ngx_conf_set_flag_slot, 192 ngx_conf_set_flag_slot,
154 NGX_HTTP_LOC_CONF_OFFSET, 193 NGX_HTTP_LOC_CONF_OFFSET,
155 offsetof(ngx_http_proxy_loc_conf_t, set_x_url), 194 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_request_body),
156 NULL },
157
158 { ngx_string("proxy_set_x_real_ip"),
159 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
160 ngx_conf_set_flag_slot,
161 NGX_HTTP_LOC_CONF_OFFSET,
162 offsetof(ngx_http_proxy_loc_conf_t, set_x_real_ip),
163 NULL },
164
165 { ngx_string("proxy_set_x_var"),
166 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
167 ngx_http_proxy_set_x_var,
168 NGX_HTTP_LOC_CONF_OFFSET,
169 0,
170 NULL },
171
172 { ngx_string("proxy_add_x_forwarded_for"),
173 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
174 ngx_conf_set_flag_slot,
175 NGX_HTTP_LOC_CONF_OFFSET,
176 offsetof(ngx_http_proxy_loc_conf_t, add_x_forwarded_for),
177 NULL }, 195 NULL },
178 196
179 { ngx_string("proxy_header_buffer_size"), 197 { ngx_string("proxy_header_buffer_size"),
180 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, 198 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
181 ngx_conf_set_size_slot, 199 ngx_conf_set_size_slot,
230 ngx_conf_set_bitmask_slot, 248 ngx_conf_set_bitmask_slot,
231 NGX_HTTP_LOC_CONF_OFFSET, 249 NGX_HTTP_LOC_CONF_OFFSET,
232 offsetof(ngx_http_proxy_loc_conf_t, upstream.next_upstream), 250 offsetof(ngx_http_proxy_loc_conf_t, upstream.next_upstream),
233 &ngx_http_proxy_next_upstream_masks }, 251 &ngx_http_proxy_next_upstream_masks },
234 252
253 { ngx_string("proxy_pass_x_powered_by"),
254 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
255 ngx_conf_set_flag_slot,
256 NGX_HTTP_LOC_CONF_OFFSET,
257 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_x_powered_by),
258 NULL },
259
235 { ngx_string("proxy_pass_server"), 260 { ngx_string("proxy_pass_server"),
236 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, 261 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
237 ngx_conf_set_flag_slot, 262 ngx_conf_set_flag_slot,
238 NGX_HTTP_LOC_CONF_OFFSET, 263 NGX_HTTP_LOC_CONF_OFFSET,
239 offsetof(ngx_http_proxy_loc_conf_t, pass_server), 264 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_server),
240 NULL }, 265 NULL },
241 266
242 { ngx_string("proxy_pass_x_accel_expires"), 267 { ngx_string("proxy_pass_x_accel_expires"),
243 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, 268 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
244 ngx_conf_set_flag_slot, 269 ngx_conf_set_flag_slot,
245 NGX_HTTP_LOC_CONF_OFFSET, 270 NGX_HTTP_LOC_CONF_OFFSET,
246 offsetof(ngx_http_proxy_loc_conf_t, pass_x_accel_expires), 271 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_x_accel_expires),
247 NULL }, 272 NULL },
248 273
249 ngx_null_command 274 ngx_null_command
250 }; 275 };
251 276
252 277
253 ngx_http_module_t ngx_http_proxy_module_ctx = { 278 ngx_http_module_t ngx_http_proxy_module_ctx = {
254 NULL, /* pre conf */ 279 ngx_http_proxy_add_variables, /* preconfiguration */
280 NULL, /* postconfiguration */
255 281
256 NULL, /* create main configuration */ 282 NULL, /* create main configuration */
257 NULL, /* init main configuration */ 283 NULL, /* init main configuration */
258 284
259 NULL, /* create server configuration */ 285 NULL, /* create server configuration */
263 ngx_http_proxy_merge_loc_conf /* merge location configration */ 289 ngx_http_proxy_merge_loc_conf /* merge location configration */
264 }; 290 };
265 291
266 292
267 ngx_module_t ngx_http_proxy_module = { 293 ngx_module_t ngx_http_proxy_module = {
268 NGX_MODULE, 294 NGX_MODULE_V1,
269 &ngx_http_proxy_module_ctx, /* module context */ 295 &ngx_http_proxy_module_ctx, /* module context */
270 ngx_http_proxy_commands, /* module directives */ 296 ngx_http_proxy_commands, /* module directives */
271 NGX_HTTP_MODULE, /* module type */ 297 NGX_HTTP_MODULE, /* module type */
272 ngx_http_proxy_init, /* init module */ 298 NULL, /* init module */
273 NULL /* init process */ 299 NULL /* init process */
274 }; 300 };
275 301
276 302
277 static ngx_str_t ngx_http_proxy_methods[] = { 303 static ngx_str_t ngx_http_proxy_methods[] = {
278 ngx_string("GET"), 304 ngx_string("GET "),
279 ngx_string("HEAD"), 305 ngx_string("HEAD "),
280 ngx_string("POST") 306 ngx_string("POST ")
281 }; 307 };
282 308
283 309
284 static char ngx_http_proxy_version[] = " HTTP/1.0" CRLF; 310 static char ngx_http_proxy_version[] = " HTTP/1.0" CRLF;
285 311
286 static ngx_str_t ngx_http_proxy_host = ngx_string("PROXY_HOST"); 312
313 static ngx_table_elt_t ngx_http_proxy_headers[] = {
314 { 0, ngx_string("Host"), ngx_string("$proxy_host"), },
315 { 0, ngx_string("Connection"), ngx_string("close"), },
316 { 0, ngx_null_string, ngx_null_string }
317 };
318
319
320 static ngx_http_variable_t ngx_http_proxy_vars[] = {
321
322 { ngx_string("proxy_host"), ngx_http_proxy_host_variable, 0,
323 NGX_HTTP_VAR_CHANGABLE },
324
325 { ngx_string("proxy_port"), ngx_http_proxy_port_variable, 0,
326 NGX_HTTP_VAR_CHANGABLE },
327
328 { ngx_string("proxy_add_x_forwarded_for"),
329 ngx_http_proxy_add_x_forwarded_for_variable, 0, 0 },
330
331 #if 0
332 { ngx_string("proxy_add_via"), NULL, 0, 0 },
333 #endif
334
335 { ngx_null_string, NULL, 0, 0 }
336 };
287 337
288 338
289 #if (NGX_PCRE) 339 #if (NGX_PCRE)
290 static ngx_str_t ngx_http_proxy_uri = ngx_string("/"); 340 static ngx_str_t ngx_http_proxy_uri = ngx_string("/");
291 #endif
292
293
294 #if 0
295
296 ngx_http_header_t ngx_http_proxy_headers_in[] = {
297 { ngx_string("Date"), offsetof(ngx_http_proxy_headers_in_t, date) },
298 { ngx_string("Server"), offsetof(ngx_http_proxy_headers_in_t, server) },
299
300 { ngx_string("Expires"), offsetof(ngx_http_proxy_headers_in_t, expires) },
301 { ngx_string("Cache-Control"),
302 offsetof(ngx_http_proxy_headers_in_t, cache_control) },
303 { ngx_string("ETag"), offsetof(ngx_http_proxy_headers_in_t, etag) },
304 { ngx_string("X-Accel-Expires"),
305 offsetof(ngx_http_proxy_headers_in_t, x_accel_expires) },
306
307 { ngx_string("Connection"),
308 offsetof(ngx_http_proxy_headers_in_t, connection) },
309 { ngx_string("Content-Type"),
310 offsetof(ngx_http_proxy_headers_in_t, content_type) },
311 { ngx_string("Content-Length"),
312 offsetof(ngx_http_proxy_headers_in_t, content_length) },
313
314 #if (NGX_HTTP_GZIP)
315 { ngx_string("Content-Encoding"),
316 offsetof(ngx_http_proxy_headers_in_t, content_encoding) },
317 #endif
318
319 { ngx_string("Last-Modified"),
320 offsetof(ngx_http_proxy_headers_in_t, last_modified) },
321 { ngx_string("Location"),
322 offsetof(ngx_http_proxy_headers_in_t, location) },
323 { ngx_string("Accept-Ranges"),
324 offsetof(ngx_http_proxy_headers_in_t, accept_ranges) },
325 { ngx_string("X-Pad"), offsetof(ngx_http_proxy_headers_in_t, x_pad) },
326
327 { ngx_null_string, 0 }
328 };
329
330 #endif 341 #endif
331 342
332 343
333 static ngx_int_t 344 static ngx_int_t
334 ngx_http_proxy_handler(ngx_http_request_t *r) 345 ngx_http_proxy_handler(ngx_http_request_t *r)
356 367
357 u->conf = &plcf->upstream; 368 u->conf = &plcf->upstream;
358 369
359 u->create_request = ngx_http_proxy_create_request; 370 u->create_request = ngx_http_proxy_create_request;
360 u->reinit_request = ngx_http_proxy_reinit_request; 371 u->reinit_request = ngx_http_proxy_reinit_request;
361 u->process_header = ngx_http_proxy_process_header; 372 u->process_header = ngx_http_proxy_process_status_line;
362 u->send_header = ngx_http_proxy_send_header;
363 u->abort_request = ngx_http_proxy_abort_request; 373 u->abort_request = ngx_http_proxy_abort_request;
364 u->finalize_request = ngx_http_proxy_finalize_request; 374 u->finalize_request = ngx_http_proxy_finalize_request;
365 375
376 if (plcf->redirects) {
377 u->rewrite_redirect = ngx_http_proxy_rewrite_redirect;
378 }
379
366 u->pipe.input_filter = ngx_event_pipe_copy_input_filter; 380 u->pipe.input_filter = ngx_event_pipe_copy_input_filter;
367 381
368 u->log_ctx = r->connection->log->data; 382 u->accel = 1;
369 u->log_handler = ngx_http_upstream_log_error;
370
371 u->schema0.len = sizeof("http://") - 1;
372 u->schema0.data = (u_char *) "http://";
373 u->uri0 = plcf->uri0;
374 u->location0 = plcf->location0;
375 383
376 r->upstream = u; 384 r->upstream = u;
377 385
378 rc = ngx_http_read_client_request_body(r, ngx_http_upstream_init); 386 rc = ngx_http_read_client_request_body(r, ngx_http_upstream_init);
379 387
386 394
387 395
388 static ngx_int_t 396 static ngx_int_t
389 ngx_http_proxy_create_request(ngx_http_request_t *r) 397 ngx_http_proxy_create_request(ngx_http_request_t *r)
390 { 398 {
391 size_t len; 399 size_t len, loc_len;
392 ngx_uint_t i, key; 400 ngx_uint_t i, key;
393 uintptr_t escape; 401 uintptr_t escape;
394 ngx_buf_t *b; 402 ngx_buf_t *b;
395 ngx_str_t *hh; 403 ngx_str_t *hh;
396 ngx_chain_t *cl; 404 ngx_chain_t *cl, *body;
397 ngx_list_part_t *part; 405 ngx_list_part_t *part;
398 ngx_table_elt_t *header; 406 ngx_table_elt_t *header;
399 ngx_http_upstream_t *u; 407 ngx_http_upstream_t *u;
400 ngx_http_proxy_loc_conf_t *plcf; 408 ngx_http_script_code_pt code;
401 ngx_http_script_code_pt code; 409 ngx_http_script_engine_t e, le;
402 ngx_http_script_len_code_pt lcode; 410 ngx_http_proxy_loc_conf_t *plcf;
403 ngx_http_script_lite_engine_t e; 411 ngx_http_script_len_code_pt lcode;
404 412
405 u = r->upstream; 413 u = r->upstream;
406 414
407 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module); 415 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
408 416
409 len = sizeof(ngx_http_proxy_version) - 1 + sizeof(CRLF) - 1; 417 len = sizeof(ngx_http_proxy_version) - 1 + sizeof(CRLF) - 1;
410 418
411 if (u->method) { 419 if (u->method) {
412 len += ngx_http_proxy_methods[u->method - 1].len + u->uri0.len; 420 len += ngx_http_proxy_methods[u->method - 1].len + u->conf->uri.len;
413 } else { 421 } else {
414 len += r->method_name.len + u->uri0.len; 422 len += r->method_name.len + 1 + u->conf->uri.len;
415 } 423 }
416 424
417 escape = 0; 425 escape = 0;
418 426
427 loc_len = r->valid_location ? u->conf->location->len : 1;
428
419 if (plcf->upstream.pass_unparsed_uri && r->valid_unparsed_uri) { 429 if (plcf->upstream.pass_unparsed_uri && r->valid_unparsed_uri) {
420 len += r->unparsed_uri.len - 1; 430 len += r->unparsed_uri.len - 1;
421 431
422 } else { 432 } else {
423 if (r->quoted_uri) { 433 if (r->quoted_uri) {
424 escape = 2 * ngx_escape_uri(NULL, r->uri.data + u->location0->len, 434 escape = 2 * ngx_escape_uri(NULL, r->uri.data + loc_len,
425 r->uri.len - u->location0->len, 435 r->uri.len - loc_len, NGX_ESCAPE_URI);
426 NGX_ESCAPE_URI); 436 }
427 } 437
428 438 len += r->uri.len - loc_len + escape + sizeof("?") - 1 + r->args.len;
429 len += r->uri.len - u->location0->len + escape 439 }
430 + sizeof("?") - 1 + r->args.len; 440
431 } 441 ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
432 442
433 443 le.ip = plcf->headers_set_len->elts;
434 e.ip = plcf->headers_set_len->elts; 444 le.request = r;
435 e.request = r; 445
436 446 while (*(uintptr_t *) le.ip) {
437 while (*(uintptr_t *) e.ip) { 447 while (*(uintptr_t *) le.ip) {
438 lcode = *(ngx_http_script_len_code_pt *) e.ip; 448 lcode = *(ngx_http_script_len_code_pt *) le.ip;
439 len += lcode(&e); 449 len += lcode(&le);
440 } 450 }
441 451 le.ip += sizeof(uintptr_t);
442 452 }
443 part = &r->headers_in.headers.part; 453
444 header = part->elts; 454
445 hh = (ngx_str_t *) plcf->headers_set_hash->buckets; 455 hh = (ngx_str_t *) plcf->headers_set_hash->buckets;
446 456
447 for (i = 0; /* void */; i++) { 457 if (plcf->upstream.pass_request_headers) {
448 458 part = &r->headers_in.headers.part;
449 if (i >= part->nelts) { 459 header = part->elts;
450 if (part->next == NULL) { 460
451 break; 461 for (i = 0; /* void */; i++) {
452 } 462
453 463 if (i >= part->nelts) {
454 part = part->next; 464 if (part->next == NULL) {
455 header = part->elts; 465 break;
456 i = 0; 466 }
457 } 467
458 468 part = part->next;
459 key = header[i].hash % plcf->headers_set_hash->hash_size; 469 header = part->elts;
460 470 i = 0;
461 if (hh[key].len == header[i].key.len 471 }
462 && ngx_strcasecmp(hh[key].data, header[i].key.data) == 0) 472
463 { 473 key = header[i].hash % plcf->headers_set_hash->hash_size;
464 continue; 474
465 } 475 if (hh[key].len == header[i].key.len
466 476 && ngx_strcasecmp(hh[key].data, header[i].key.data) == 0)
467 len += header[i].key.len + sizeof(": ") - 1 477 {
468 + header[i].value.len + sizeof(CRLF) - 1; 478 continue;
469 } 479 }
480
481 len += header[i].key.len + sizeof(": ") - 1
482 + header[i].value.len + sizeof(CRLF) - 1;
483 }
484 }
485
470 486
471 b = ngx_create_temp_buf(r->pool, len); 487 b = ngx_create_temp_buf(r->pool, len);
472 if (b == NULL) { 488 if (b == NULL) {
473 return NGX_ERROR; 489 return NGX_ERROR;
474 } 490 }
477 if (cl == NULL) { 493 if (cl == NULL) {
478 return NGX_ERROR; 494 return NGX_ERROR;
479 } 495 }
480 496
481 cl->buf = b; 497 cl->buf = b;
482 cl->next = NULL;
483
484 r->request_body->bufs = cl;
485 498
486 499
487 /* the request line */ 500 /* the request line */
488 501
489 if (u->method) { 502 if (u->method) {
490 b->last = ngx_cpymem(b->last, 503 b->last = ngx_cpymem(b->last,
491 ngx_http_proxy_methods[u->method - 1].data, 504 ngx_http_proxy_methods[u->method - 1].data,
492 ngx_http_proxy_methods[u->method - 1].len); 505 ngx_http_proxy_methods[u->method - 1].len);
493 } else { 506 } else {
494 b->last = ngx_cpymem(b->last, r->method_name.data, r->method_name.len); 507 b->last = ngx_cpymem(b->last, r->method_name.data,
495 } 508 r->method_name.len + 1);
496 509 }
497 b->last = ngx_cpymem(b->last, u->uri0.data, u->uri0.len); 510
511 b->last = ngx_cpymem(b->last, u->conf->uri.data, u->conf->uri.len);
498 512
499 if (plcf->upstream.pass_unparsed_uri && r->valid_unparsed_uri) { 513 if (plcf->upstream.pass_unparsed_uri && r->valid_unparsed_uri) {
500 b->last = ngx_cpymem(b->last, r->unparsed_uri.data + 1, 514 b->last = ngx_cpymem(b->last, r->unparsed_uri.data + 1,
501 r->unparsed_uri.len - 1); 515 r->unparsed_uri.len - 1);
502 } else { 516 } else {
503 if (escape) { 517 if (escape) {
504 ngx_escape_uri(b->last, r->uri.data + u->location0->len, 518 ngx_escape_uri(b->last, r->uri.data + loc_len,
505 r->uri.len - u->location0->len, NGX_ESCAPE_URI); 519 r->uri.len - loc_len, NGX_ESCAPE_URI);
506 b->last += r->uri.len - u->location0->len + escape; 520 b->last += r->uri.len - loc_len + escape;
507 521
508 } else { 522 } else {
509 b->last = ngx_cpymem(b->last, r->uri.data + u->location0->len, 523 b->last = ngx_cpymem(b->last, r->uri.data + loc_len,
510 r->uri.len - u->location0->len); 524 r->uri.len - loc_len);
511 } 525 }
512 526
513 if (r->args.len > 0) { 527 if (r->args.len > 0) {
514 *b->last++ = '?'; 528 *b->last++ = '?';
515 b->last = ngx_cpymem(b->last, r->args.data, r->args.len); 529 b->last = ngx_cpymem(b->last, r->args.data, r->args.len);
520 sizeof(ngx_http_proxy_version) - 1); 534 sizeof(ngx_http_proxy_version) - 1);
521 535
522 536
523 e.ip = plcf->headers_set->elts; 537 e.ip = plcf->headers_set->elts;
524 e.pos = b->last; 538 e.pos = b->last;
525 539 e.request = r;
526 while (*(uintptr_t *) e.ip) { 540
527 code = *(ngx_http_script_code_pt *) e.ip; 541 le.ip = plcf->headers_set_len->elts;
528 code((ngx_http_script_engine_t *) &e); 542
543 while (*(uintptr_t *) le.ip) {
544 lcode = *(ngx_http_script_len_code_pt *) le.ip;
545 lcode(&le);
546
547 if (*(ngx_http_script_len_code_pt *) le.ip) {
548
549 for (len = 0; *(uintptr_t *) le.ip; len += lcode(&le)) {
550 lcode = *(ngx_http_script_len_code_pt *) le.ip;
551 }
552
553 e.skip = (len == sizeof(CRLF) - 1) ? 1 : 0;
554
555 } else {
556 e.skip = 0;
557 }
558
559 le.ip += sizeof(uintptr_t);
560
561 while (*(uintptr_t *) e.ip) {
562 code = *(ngx_http_script_code_pt *) e.ip;
563 code((ngx_http_script_engine_t *) &e);
564 }
565 e.ip += sizeof(uintptr_t);
529 } 566 }
530 567
531 b->last = e.pos; 568 b->last = e.pos;
532 569
533 570
534 part = &r->headers_in.headers.part; 571 if (plcf->upstream.pass_request_headers) {
535 header = part->elts; 572 part = &r->headers_in.headers.part;
573 header = part->elts;
536 574
537 for (i = 0; /* void */; i++) { 575 for (i = 0; /* void */; i++) {
538 576
539 if (i >= part->nelts) { 577 if (i >= part->nelts) {
540 if (part->next == NULL) { 578 if (part->next == NULL) {
541 break; 579 break;
542 } 580 }
543 581
544 part = part->next; 582 part = part->next;
545 header = part->elts; 583 header = part->elts;
546 i = 0; 584 i = 0;
547 } 585 }
548 586
549 key = header[i].hash % plcf->headers_set_hash->hash_size; 587 key = header[i].hash % plcf->headers_set_hash->hash_size;
550 588
551 if (hh[key].len == header[i].key.len 589 if (hh[key].len == header[i].key.len
552 && ngx_strcasecmp(hh[key].data, header[i].key.data) == 0) 590 && ngx_strcasecmp(hh[key].data, header[i].key.data) == 0)
553 { 591 {
554 continue; 592 continue;
555 } 593 }
556 594
557 b->last = ngx_cpymem(b->last, header[i].key.data, header[i].key.len); 595 b->last = ngx_cpymem(b->last, header[i].key.data,
558 596 header[i].key.len);
559 *b->last++ = ':'; *b->last++ = ' '; 597
560 598 *b->last++ = ':'; *b->last++ = ' ';
561 b->last = ngx_cpymem(b->last, header[i].value.data, 599
562 header[i].value.len); 600 b->last = ngx_cpymem(b->last, header[i].value.data,
563 601 header[i].value.len);
564 *b->last++ = CR; *b->last++ = LF; 602
565 603 *b->last++ = CR; *b->last++ = LF;
566 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, 604
567 "http proxy header: \"%V: %V\"", 605 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
568 &header[i].key, &header[i].value); 606 "http proxy header: \"%V: %V\"",
607 &header[i].key, &header[i].value);
608 }
569 } 609 }
570 610
571 /* add "\r\n" at the header end */ 611 /* add "\r\n" at the header end */
572 *b->last++ = CR; *b->last++ = LF; 612 *b->last++ = CR; *b->last++ = LF;
573 613
580 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, 620 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
581 "http proxy header:\n\"%V\"", &s); 621 "http proxy header:\n\"%V\"", &s);
582 } 622 }
583 #endif 623 #endif
584 624
625 if (plcf->upstream.pass_request_body) {
626
627 body = u->request_bufs;
628 u->request_bufs = cl;
629
630 while (body) {
631 b = ngx_alloc_buf(r->pool);
632 if (b == NULL) {
633 return NGX_ERROR;
634 }
635
636 ngx_memcpy(b, body->buf, sizeof(ngx_buf_t));
637
638 cl->next = ngx_alloc_chain_link(r->pool);
639 if (cl->next == NULL) {
640 return NGX_ERROR;
641 }
642
643 cl = cl->next;
644 cl->buf = b;
645
646 body = body->next;
647 }
648
649 } else {
650 u->request_bufs = cl;
651 }
652
653 cl->next = NULL;
654
585 return NGX_OK; 655 return NGX_OK;
586 } 656 }
587 657
588 658
589 static ngx_int_t 659 static ngx_int_t
590 ngx_http_proxy_reinit_request(ngx_http_request_t *r) 660 ngx_http_proxy_reinit_request(ngx_http_request_t *r)
591 { 661 {
662 ngx_http_proxy_ctx_t *p;
663
664 p = ngx_http_get_module_ctx(r, ngx_http_proxy_module);
665
666 if (p == NULL) {
667 return NGX_OK;
668 }
669
670 p->status = 0;
671 p->status_count = 0;
672 p->status_start = NULL;
673 p->status_end = NULL;
674
675 r->upstream->process_header = ngx_http_proxy_process_status_line;
676
677 return NGX_OK;
678 }
679
680
681 static ngx_int_t
682 ngx_http_proxy_process_status_line(ngx_http_request_t *r)
683 {
684 ngx_int_t rc;
685 ngx_http_upstream_t *u;
686 ngx_http_proxy_ctx_t *p;
687
688 p = ngx_http_get_module_ctx(r, ngx_http_proxy_module);
689
690 if (p == NULL) {
691 p = ngx_pcalloc(r->pool, sizeof(ngx_http_proxy_ctx_t));
692 if (p == NULL) {
693 return NGX_HTTP_INTERNAL_SERVER_ERROR;
694 }
695
696 ngx_http_set_ctx(r, p, ngx_http_proxy_module);
697 }
698
699 rc = ngx_http_proxy_parse_status_line(r, p);
700
701 if (rc == NGX_AGAIN) {
702 return rc;
703 }
704
705 u = r->upstream;
706
707 if (rc == NGX_HTTP_PROXY_PARSE_NO_HEADER) {
708 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
709 "upstream sent no valid HTTP/1.0 header");
710
711 if (u->accel) {
712 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
713 }
714
715 r->http_version = NGX_HTTP_VERSION_9;
716 p->status = NGX_HTTP_OK;
717
718 return NGX_OK;
719 }
720
721 r->headers_out.status = p->status;
722 u->state->status = p->status;
723
724 r->headers_out.status_line.len = p->status_end - p->status_start;
725 r->headers_out.status_line.data = ngx_palloc(r->pool,
726 r->headers_out.status_line.len);
727 if (r->headers_out.status_line.data == NULL) {
728 return NGX_HTTP_INTERNAL_SERVER_ERROR;
729 }
730 ngx_memcpy(r->headers_out.status_line.data, p->status_start,
731 r->headers_out.status_line.len);
732
733 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
734 "http proxy status %ui \"%V\"",
735 r->headers_out.status, &r->headers_out.status_line);
736
737 u->process_header = ngx_http_proxy_process_header;
738
739 return ngx_http_proxy_process_header(r);
740 }
741
742
743 static ngx_int_t
744 ngx_http_proxy_parse_status_line(ngx_http_request_t *r, ngx_http_proxy_ctx_t *p)
745 {
746 u_char ch;
747 u_char *pos;
748 ngx_http_upstream_t *u;
749 enum {
750 sw_start = 0,
751 sw_H,
752 sw_HT,
753 sw_HTT,
754 sw_HTTP,
755 sw_first_major_digit,
756 sw_major_digit,
757 sw_first_minor_digit,
758 sw_minor_digit,
759 sw_status,
760 sw_space_after_status,
761 sw_status_text,
762 sw_almost_done
763 } state;
764
765 u = r->upstream;
766
767 state = r->state;
768
769 for (pos = u->header_in.pos; pos < u->header_in.last; pos++) {
770 ch = *pos;
771
772 switch (state) {
773
774 /* "HTTP/" */
775 case sw_start:
776 switch (ch) {
777 case 'H':
778 state = sw_H;
779 break;
780 default:
781 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
782 }
783 break;
784
785 case sw_H:
786 switch (ch) {
787 case 'T':
788 state = sw_HT;
789 break;
790 default:
791 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
792 }
793 break;
794
795 case sw_HT:
796 switch (ch) {
797 case 'T':
798 state = sw_HTT;
799 break;
800 default:
801 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
802 }
803 break;
804
805 case sw_HTT:
806 switch (ch) {
807 case 'P':
808 state = sw_HTTP;
809 break;
810 default:
811 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
812 }
813 break;
814
815 case sw_HTTP:
816 switch (ch) {
817 case '/':
818 state = sw_first_major_digit;
819 break;
820 default:
821 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
822 }
823 break;
824
825 /* the first digit of major HTTP version */
826 case sw_first_major_digit:
827 if (ch < '1' || ch > '9') {
828 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
829 }
830
831 state = sw_major_digit;
832 break;
833
834 /* the major HTTP version or dot */
835 case sw_major_digit:
836 if (ch == '.') {
837 state = sw_first_minor_digit;
838 break;
839 }
840
841 if (ch < '0' || ch > '9') {
842 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
843 }
844
845 break;
846
847 /* the first digit of minor HTTP version */
848 case sw_first_minor_digit:
849 if (ch < '0' || ch > '9') {
850 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
851 }
852
853 state = sw_minor_digit;
854 break;
855
856 /* the minor HTTP version or the end of the request line */
857 case sw_minor_digit:
858 if (ch == ' ') {
859 state = sw_status;
860 break;
861 }
862
863 if (ch < '0' || ch > '9') {
864 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
865 }
866
867 break;
868
869 /* HTTP status code */
870 case sw_status:
871 if (ch < '0' || ch > '9') {
872 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
873 }
874
875 p->status = p->status * 10 + ch - '0';
876
877 if (++p->status_count == 3) {
878 state = sw_space_after_status;
879 p->status_start = pos - 2;
880 }
881
882 break;
883
884 /* space or end of line */
885 case sw_space_after_status:
886 switch (ch) {
887 case ' ':
888 state = sw_status_text;
889 break;
890 case '.': /* IIS may send 403.1, 403.2, etc */
891 state = sw_status_text;
892 break;
893 case CR:
894 state = sw_almost_done;
895 break;
896 case LF:
897 goto done;
898 default:
899 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
900 }
901 break;
902
903 /* any text until end of line */
904 case sw_status_text:
905 switch (ch) {
906 case CR:
907 state = sw_almost_done;
908
909 break;
910 case LF:
911 goto done;
912 }
913 break;
914
915 /* end of request line */
916 case sw_almost_done:
917 p->status_end = pos - 1;
918 switch (ch) {
919 case LF:
920 goto done;
921 default:
922 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
923 }
924 }
925 }
926
927 u->header_in.pos = pos + 1;
928 r->state = state;
929
930 return NGX_AGAIN;
931
932 done:
933
934 u->header_in.pos = pos + 1;
935
936 if (p->status_end == NULL) {
937 p->status_end = pos;
938 }
939
940 r->state = sw_start;
941
592 return NGX_OK; 942 return NGX_OK;
593 } 943 }
594 944
595 945
596 static ngx_int_t 946 static ngx_int_t
597 ngx_http_proxy_process_header(ngx_http_request_t *r) 947 ngx_http_proxy_process_header(ngx_http_request_t *r)
598 { 948 {
599 return NGX_OK; 949 ngx_int_t rc;
600 } 950 ngx_uint_t key;
601 951 ngx_table_elt_t *h;
602 952 ngx_http_upstream_header_t *hh;
603 static ngx_int_t 953 ngx_http_upstream_main_conf_t *umcf;
604 ngx_http_proxy_send_header(ngx_http_request_t *r) 954
605 { 955 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module);
606 return NGX_OK; 956 hh = (ngx_http_upstream_header_t *) umcf->headers_in_hash.buckets;
957
958 for ( ;; ) {
959
960 rc = ngx_http_parse_header_line(r, &r->upstream->header_in);
961
962 if (rc == NGX_OK) {
963
964 /* a header line has been parsed successfully */
965
966 h = ngx_list_push(&r->upstream->headers_in.headers);
967 if (h == NULL) {
968 return NGX_HTTP_INTERNAL_SERVER_ERROR;
969 }
970
971 h->hash = r->header_hash;
972
973 h->key.len = r->header_name_end - r->header_name_start;
974 h->value.len = r->header_end - r->header_start;
975
976 h->key.data = ngx_palloc(r->pool,
977 h->key.len + 1 + h->value.len + 1);
978 if (h->key.data == NULL) {
979 return NGX_HTTP_INTERNAL_SERVER_ERROR;
980 }
981
982 h->value.data = h->key.data + h->key.len + 1;
983
984 ngx_cpystrn(h->key.data, r->header_name_start, h->key.len + 1);
985 ngx_cpystrn(h->value.data, r->header_start, h->value.len + 1);
986
987 key = h->hash % umcf->headers_in_hash.hash_size;
988
989 if (hh[key].name.len == h->key.len
990 && ngx_strcasecmp(hh[key].name.data, h->key.data) == 0)
991 {
992 if (hh[key].handler(r, h, hh[key].offset) != NGX_OK) {
993 return NGX_HTTP_INTERNAL_SERVER_ERROR;
994 }
995 }
996
997 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
998 "http proxy header: \"%V: %V\"",
999 &h->key, &h->value);
1000
1001 continue;
1002 }
1003
1004 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
1005
1006 /* a whole header has been parsed successfully */
1007
1008 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
1009 "http proxy header done");
1010
1011 return NGX_OK;
1012 }
1013
1014 /* there was error while a header line parsing */
1015
1016 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
1017 ngx_http_upstream_header_errors[rc
1018 - NGX_HTTP_PARSE_HEADER_ERROR]);
1019
1020 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
1021 }
607 } 1022 }
608 1023
609 1024
610 static void 1025 static void
611 ngx_http_proxy_abort_request(ngx_http_request_t *r) 1026 ngx_http_proxy_abort_request(ngx_http_request_t *r)
625 1040
626 return; 1041 return;
627 } 1042 }
628 1043
629 1044
630 static ngx_int_t
631 ngx_http_proxy_init(ngx_cycle_t *cycle)
632 {
633 #if 0
634 ngx_http_variable_t *var;
635
636 var = ngx_http_add_variable(cf, &ngx_http_proxy_host, 1);
637 if (var == NULL) {
638 return NGX_ERROR;
639 }
640
641 var->handler = ngx_http_proxy_host_variable;
642 #endif
643
644 return NGX_OK;
645
646 #if 0
647 ngx_http_log_op_name_t *op;
648
649 for (op = ngx_http_proxy_log_fmt_ops; op->name.len; op++) { /* void */ }
650 op->run = NULL;
651
652 for (op = ngx_http_log_fmt_ops; op->run; op++) {
653 if (op->name.len == 0) {
654 op = (ngx_http_log_op_name_t *) op->run;
655 }
656 }
657
658 op->run = (ngx_http_log_op_run_pt) ngx_http_proxy_log_fmt_ops;
659
660 #endif
661 }
662
663
664 static ngx_http_variable_value_t * 1045 static ngx_http_variable_value_t *
665 ngx_http_proxy_host_variable(ngx_http_request_t *r, uintptr_t data) 1046 ngx_http_proxy_host_variable(ngx_http_request_t *r, uintptr_t data)
666 { 1047 {
667 ngx_http_variable_value_t *var; 1048 ngx_http_variable_value_t *vv;
668 ngx_http_proxy_loc_conf_t *plcf; 1049 ngx_http_proxy_loc_conf_t *plcf;
669 1050
670 var = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t)); 1051 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
671 if (var == NULL) { 1052 if (vv == NULL) {
672 return NULL; 1053 return NULL;
673 } 1054 }
674 1055
675 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module); 1056 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
676 1057
677 var->value = 0; 1058 vv->value = 0;
678 var->text = plcf->host_header; 1059 vv->text = plcf->host_header;
679 1060
680 return var; 1061 return vv;
1062 }
1063
1064
1065 static ngx_http_variable_value_t *
1066 ngx_http_proxy_port_variable(ngx_http_request_t *r, uintptr_t data)
1067 {
1068 ngx_http_variable_value_t *vv;
1069 ngx_http_proxy_loc_conf_t *plcf;
1070
1071 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
1072 if (vv == NULL) {
1073 return NULL;
1074 }
1075
1076 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
1077
1078 vv->value = 0;
1079 vv->text = plcf->port_text;
1080
1081 return vv;
1082 }
1083
1084
1085 static ngx_http_variable_value_t *
1086 ngx_http_proxy_add_x_forwarded_for_variable(ngx_http_request_t *r,
1087 uintptr_t data)
1088 {
1089 u_char *p;
1090 ngx_http_variable_value_t *vv;
1091
1092 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
1093 if (vv == NULL) {
1094 return NULL;
1095 }
1096
1097 vv->value = 0;
1098
1099 if (r->headers_in.x_forwarded_for == NULL) {
1100 vv->text = r->connection->addr_text;
1101 return vv;
1102 }
1103
1104 vv->text.len = r->headers_in.x_forwarded_for->value.len
1105 + sizeof(", ") - 1 + r->connection->addr_text.len;
1106
1107 p = ngx_palloc(r->pool, vv->text.len);
1108 if (p == NULL) {
1109 return NULL;
1110 }
1111
1112 vv->text.data = p;
1113
1114 p = ngx_cpymem(p, r->headers_in.x_forwarded_for->value.data,
1115 r->headers_in.x_forwarded_for->value.len);
1116
1117 *p++ = ','; *p++ = ' ';
1118
1119 ngx_memcpy(p, r->connection->addr_text.data, r->connection->addr_text.len);
1120
1121 return vv;
1122 }
1123
1124
1125 static ngx_int_t
1126 ngx_http_proxy_rewrite_redirect(ngx_http_request_t *r, ngx_table_elt_t *h,
1127 size_t prefix)
1128 {
1129 ngx_int_t rc;
1130 ngx_uint_t i;
1131 ngx_http_proxy_loc_conf_t *plcf;
1132 ngx_http_proxy_redirect_t *pr;
1133
1134 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
1135
1136 pr = plcf->redirects->elts;
1137
1138 if (pr == NULL) {
1139 return NGX_DECLINED;
1140 }
1141
1142 for (i = 0; i < plcf->redirects->nelts; i++) {
1143 rc = pr->handler(r, h, prefix, pr);
1144
1145 if (rc != NGX_DECLINED) {
1146 return rc;
1147 }
1148 }
1149
1150 return NGX_DECLINED;
1151 }
1152
1153
1154 static ngx_int_t
1155 ngx_http_proxy_rewrite_redirect_text(ngx_http_request_t *r, ngx_table_elt_t *h,
1156 size_t prefix, ngx_http_proxy_redirect_t *pr)
1157 {
1158 size_t len;
1159 u_char *data, *p;
1160
1161 if (pr->redirect.len > h->value.len - prefix
1162 || ngx_rstrncmp(h->value.data + prefix, pr->redirect.data,
1163 pr->redirect.len) != 0)
1164 {
1165 return NGX_DECLINED;
1166 }
1167
1168 len = prefix + pr->replacement.text.len + h->value.len - pr->redirect.len;
1169
1170 data = ngx_palloc(r->pool, len);
1171 if (data == NULL) {
1172 return NGX_ERROR;
1173 }
1174
1175 p = data;
1176
1177 if (prefix) {
1178 p = ngx_cpymem(p, h->value.data, prefix);
1179 }
1180
1181 p = ngx_cpymem(p, pr->replacement.text.data, pr->replacement.text.len);
1182
1183 ngx_memcpy(p, h->value.data + prefix + pr->redirect.len,
1184 h->value.len - pr->redirect.len - prefix);
1185
1186 h->value.len = len;
1187 h->value.data = data;
1188
1189 return NGX_OK;
1190 }
1191
1192
1193 static ngx_int_t
1194 ngx_http_proxy_rewrite_redirect_vars(ngx_http_request_t *r, ngx_table_elt_t *h,
1195 size_t prefix, ngx_http_proxy_redirect_t *pr)
1196 {
1197 size_t len;
1198 u_char *data, *p;
1199 ngx_http_script_code_pt code;
1200 ngx_http_script_engine_t e;
1201 ngx_http_script_len_code_pt lcode;
1202
1203 if (pr->redirect.len > h->value.len - prefix
1204 || ngx_rstrncmp(h->value.data + prefix, pr->redirect.data,
1205 pr->redirect.len) != 0)
1206 {
1207 return NGX_DECLINED;
1208 }
1209
1210 ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
1211
1212 e.ip = pr->replacement.vars.lengths;
1213 e.request = r;
1214
1215 for (len = prefix; *(uintptr_t *) e.ip; len += lcode(&e)) {
1216 lcode = *(ngx_http_script_len_code_pt *) e.ip;
1217 }
1218
1219 data = ngx_palloc(r->pool, len);
1220 if (data == NULL) {
1221 return NGX_ERROR;
1222 }
1223
1224 p = data;
1225
1226 if (prefix) {
1227 p = ngx_cpymem(p, h->value.data, prefix);
1228 }
1229
1230 e.ip = pr->replacement.vars.values;
1231 e.pos = p;
1232
1233 while (*(uintptr_t *) e.ip) {
1234 code = *(ngx_http_script_code_pt *) e.ip;
1235 code(&e);
1236 }
1237
1238 h->value.len = len;
1239 h->value.data = data;
1240
1241 return NGX_OK;
1242 }
1243
1244
1245 static ngx_int_t
1246 ngx_http_proxy_add_variables(ngx_conf_t *cf)
1247 {
1248 ngx_http_variable_t *var, *v;
1249
1250 for (v = ngx_http_proxy_vars; v->name.len; v++) {
1251 var = ngx_http_add_variable(cf, &v->name, v->flags);
1252 if (var == NULL) {
1253 return NGX_ERROR;
1254 }
1255
1256 var->handler = v->handler;
1257 var->data = v->data;
1258 }
1259
1260 return NGX_OK;
681 } 1261 }
682 1262
683 1263
684 static void * 1264 static void *
685 ngx_http_proxy_create_loc_conf(ngx_conf_t *cf) 1265 ngx_http_proxy_create_loc_conf(ngx_conf_t *cf)
696 * 1276 *
697 * conf->upstream.bufs.num = 0; 1277 * conf->upstream.bufs.num = 0;
698 * conf->upstream.path = NULL; 1278 * conf->upstream.path = NULL;
699 * conf->upstream.next_upstream = 0; 1279 * conf->upstream.next_upstream = 0;
700 * conf->upstream.temp_path = NULL; 1280 * conf->upstream.temp_path = NULL;
1281 * conf->upstream.schema = { 0, NULL };
1282 * conf->upstream.uri = { 0, NULL };
1283 * conf->upstream.location = NULL;
1284 *
1285 * conf->headers_source = NULL;
1286 * conf->headers_set_len = NULL;
1287 * conf->headers_set = NULL;
1288 * conf->headers_set_hash = NULL;
1289 * conf->rewrite_locations = NULL;
701 */ 1290 */
702 1291
703 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC; 1292 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC;
704 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC; 1293 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC;
705 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC; 1294 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC;
707 conf->upstream.send_lowat = NGX_CONF_UNSET_SIZE; 1296 conf->upstream.send_lowat = NGX_CONF_UNSET_SIZE;
708 conf->upstream.header_buffer_size = NGX_CONF_UNSET_SIZE; 1297 conf->upstream.header_buffer_size = NGX_CONF_UNSET_SIZE;
709 conf->upstream.busy_buffers_size = NGX_CONF_UNSET_SIZE; 1298 conf->upstream.busy_buffers_size = NGX_CONF_UNSET_SIZE;
710 conf->upstream.max_temp_file_size = NGX_CONF_UNSET_SIZE; 1299 conf->upstream.max_temp_file_size = NGX_CONF_UNSET_SIZE;
711 conf->upstream.temp_file_write_size = NGX_CONF_UNSET_SIZE; 1300 conf->upstream.temp_file_write_size = NGX_CONF_UNSET_SIZE;
1301
1302 conf->upstream.pass_unparsed_uri = NGX_CONF_UNSET;
1303 conf->upstream.method = NGX_CONF_UNSET_UINT;
1304 conf->upstream.pass_request_headers = NGX_CONF_UNSET;
1305 conf->upstream.pass_request_body = NGX_CONF_UNSET;
712 1306
713 conf->upstream.redirect_errors = NGX_CONF_UNSET; 1307 conf->upstream.redirect_errors = NGX_CONF_UNSET;
714 conf->upstream.pass_unparsed_uri = NGX_CONF_UNSET;
715 conf->upstream.x_powered_by = NGX_CONF_UNSET;
716 1308
717 /* "proxy_cyclic_temp_file" is disabled */ 1309 /* "proxy_cyclic_temp_file" is disabled */
718 conf->upstream.cyclic_temp_file = 0; 1310 conf->upstream.cyclic_temp_file = 0;
719 1311
720 conf->preserve_host = NGX_CONF_UNSET; 1312 conf->upstream.pass_x_powered_by = NGX_CONF_UNSET;
721 conf->set_x_url = NGX_CONF_UNSET; 1313 conf->upstream.pass_server = NGX_CONF_UNSET;
722 conf->set_x_real_ip = NGX_CONF_UNSET; 1314 conf->upstream.pass_date = 0;
723 conf->add_x_forwarded_for = NGX_CONF_UNSET; 1315 conf->upstream.pass_x_accel_expires = NGX_CONF_UNSET;
724 1316
725 conf->pass_server = NGX_CONF_UNSET; 1317 conf->redirect = NGX_CONF_UNSET;
726 conf->pass_x_accel_expires = NGX_CONF_UNSET;
727 1318
728 return conf; 1319 return conf;
729 } 1320 }
730 1321
731 1322
733 ngx_http_proxy_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) 1324 ngx_http_proxy_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
734 { 1325 {
735 ngx_http_proxy_loc_conf_t *prev = parent; 1326 ngx_http_proxy_loc_conf_t *prev = parent;
736 ngx_http_proxy_loc_conf_t *conf = child; 1327 ngx_http_proxy_loc_conf_t *conf = child;
737 1328
738 size_t size; 1329 u_char *p;
739 ngx_str_t *name; 1330 size_t size;
740 ngx_table_elt_t *src; 1331 uintptr_t *code;
741 ngx_http_variable_t *var; 1332 ngx_str_t *name;
742 1333 ngx_uint_t i;
1334 ngx_table_elt_t *src, *s, *h;
1335 ngx_http_proxy_redirect_t *pr;
1336 ngx_http_script_compile_t sc;
1337 ngx_http_script_copy_code_t *copy;
1338
743 ngx_conf_merge_msec_value(conf->upstream.connect_timeout, 1339 ngx_conf_merge_msec_value(conf->upstream.connect_timeout,
744 prev->upstream.connect_timeout, 60000); 1340 prev->upstream.connect_timeout, 60000);
745 1341
746 ngx_conf_merge_msec_value(conf->upstream.send_timeout, 1342 ngx_conf_merge_msec_value(conf->upstream.send_timeout,
747 prev->upstream.send_timeout, 60000); 1343 prev->upstream.send_timeout, 60000);
839 prev->upstream.next_upstream, 1435 prev->upstream.next_upstream,
840 (NGX_CONF_BITMASK_SET 1436 (NGX_CONF_BITMASK_SET
841 |NGX_HTTP_UPSTREAM_FT_ERROR 1437 |NGX_HTTP_UPSTREAM_FT_ERROR
842 |NGX_HTTP_UPSTREAM_FT_TIMEOUT)); 1438 |NGX_HTTP_UPSTREAM_FT_TIMEOUT));
843 1439
844 ngx_conf_merge_msec_value(conf->upstream.redirect_errors, 1440 ngx_conf_merge_path_value(conf->upstream.temp_path,
845 prev->upstream.redirect_errors, 0); 1441 prev->upstream.temp_path,
1442 NGX_HTTP_PROXY_TEMP_PATH, 1, 2, 0,
1443 ngx_garbage_collector_temp_handler, cf);
846 1444
847 ngx_conf_merge_msec_value(conf->upstream.pass_unparsed_uri, 1445 ngx_conf_merge_msec_value(conf->upstream.pass_unparsed_uri,
848 prev->upstream.pass_unparsed_uri, 0); 1446 prev->upstream.pass_unparsed_uri, 0);
849 1447
850 if (conf->upstream.pass_unparsed_uri && conf->location0->len > 1) { 1448 if (conf->upstream.pass_unparsed_uri && conf->upstream.location->len > 1) {
851 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, 1449 ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
852 "\"proxy_pass_unparsed_uri\" can be set for " 1450 "\"proxy_pass_unparsed_uri\" can be set for "
853 "location \"/\" or given by regular expression."); 1451 "location \"/\" or given by regular expression.");
854 return NGX_CONF_ERROR; 1452 return NGX_CONF_ERROR;
855 } 1453 }
856 1454
857 ngx_conf_merge_msec_value(conf->upstream.x_powered_by, 1455 if (conf->upstream.method == NGX_CONF_UNSET_UINT) {
858 prev->upstream.x_powered_by, 1); 1456 conf->upstream.method = prev->upstream.method;
859 1457 }
860 ngx_conf_merge_value(conf->preserve_host, prev->preserve_host, 0); 1458
861 ngx_conf_merge_value(conf->set_x_url, prev->set_x_url, 0); 1459 ngx_conf_merge_value(conf->upstream.pass_request_headers,
862 ngx_conf_merge_value(conf->set_x_real_ip, prev->set_x_real_ip, 0); 1460 prev->upstream.pass_request_headers, 1);
863 ngx_conf_merge_value(conf->add_x_forwarded_for, 1461 ngx_conf_merge_value(conf->upstream.pass_request_body,
864 prev->add_x_forwarded_for, 0); 1462 prev->upstream.pass_request_body, 1);
1463
1464 ngx_conf_merge_msec_value(conf->upstream.redirect_errors,
1465 prev->upstream.redirect_errors, 0);
1466
1467 ngx_conf_merge_msec_value(conf->upstream.pass_x_powered_by,
1468 prev->upstream.pass_x_powered_by, 1);
1469 ngx_conf_merge_msec_value(conf->upstream.pass_server,
1470 prev->upstream.pass_server, 0);
1471 ngx_conf_merge_msec_value(conf->upstream.pass_x_accel_expires,
1472 prev->upstream.pass_x_accel_expires, 0);
1473
1474
1475 ngx_conf_merge_value(conf->redirect, prev->redirect, 1);
1476
1477 if (conf->redirect) {
1478
1479 if (conf->redirects == NULL) {
1480 conf->redirects = prev->redirects;
1481 }
1482
1483 if (conf->redirects == NULL && conf->upstream.url.data) {
1484
1485 conf->redirects = ngx_array_create(cf->pool, 1,
1486 sizeof(ngx_http_proxy_redirect_t));
1487 if (conf->redirects == NULL) {
1488 return NGX_CONF_ERROR;
1489 }
1490
1491 pr = ngx_array_push(conf->redirects);
1492 if (pr == NULL) {
1493 return NGX_CONF_ERROR;
1494 }
1495
1496 pr->handler = ngx_http_proxy_rewrite_redirect_text;
1497 pr->redirect = conf->upstream.url;
1498 pr->replacement.text = *conf->upstream.location;
1499 }
1500 }
1501
865 1502
866 if (conf->peers == NULL) { 1503 if (conf->peers == NULL) {
867 conf->peers = prev->peers; 1504 conf->peers = prev->peers;
868 conf->upstream = prev->upstream; 1505 conf->upstream = prev->upstream;
869 } 1506 }
870 1507
871 if (conf->headers_set_hash == NULL) { 1508 if (conf->headers_source == NULL) {
1509 conf->headers_source = prev->headers_source;
872 conf->headers_set_len = prev->headers_set_len; 1510 conf->headers_set_len = prev->headers_set_len;
873 conf->headers_set = prev->headers_set; 1511 conf->headers_set = prev->headers_set;
874 conf->headers_set_hash = prev->headers_set_hash; 1512 conf->headers_set_hash = prev->headers_set_hash;
875 } 1513 }
876 1514
877 if (conf->headers_set_hash == NULL) { 1515 if (conf->headers_set_hash) {
878 1516 return NGX_CONF_OK;
879 if (conf->headers_names == NULL) { 1517 }
880 conf->headers_names = ngx_array_create(cf->pool, 4, 1518
881 sizeof(ngx_str_t)); 1519
882 if (conf->headers_names == NULL) { 1520 conf->headers_names = ngx_array_create(cf->pool, 4, sizeof(ngx_str_t));
883 return NGX_CONF_ERROR; 1521 if (conf->headers_names == NULL) {
884 } 1522 return NGX_CONF_ERROR;
885 } 1523 }
886 1524
887 if (conf->headers_sources == NULL) { 1525 if (conf->headers_source == NULL) {
888 conf->headers_sources = ngx_array_create(cf->pool, 4, 1526 conf->headers_source = ngx_array_create(cf->pool, 4,
889 sizeof(ngx_table_elt_t)); 1527 sizeof(ngx_table_elt_t));
890 if (conf->headers_sources == NULL) { 1528 if (conf->headers_source == NULL) {
891 return NGX_CONF_ERROR;
892 }
893 }
894
895 /* STUB */
896 var = ngx_http_add_variable(cf, &ngx_http_proxy_host, 0);
897 if (var == NULL) {
898 return NGX_CONF_ERROR; 1529 return NGX_CONF_ERROR;
899 } 1530 }
900 1531 }
901 var->handler = ngx_http_proxy_host_variable; 1532
902 /**/ 1533 conf->headers_set_len = ngx_array_create(cf->pool, 64, 1);
903 1534 if (conf->headers_set_len == NULL) {
1535 return NGX_CONF_ERROR;
1536 }
1537
1538 conf->headers_set = ngx_array_create(cf->pool, 512, 1);
1539 if (conf->headers_set == NULL) {
1540 return NGX_CONF_ERROR;
1541 }
1542
1543
1544 src = conf->headers_source->elts;
1545
1546 for (h = ngx_http_proxy_headers; h->key.len; h++) {
1547
1548 for (i = 0; i < conf->headers_source->nelts; i++) {
1549 if (ngx_strcasecmp(h->key.data, src[i].key.data) == 0) {
1550 goto next;
1551 }
1552 }
1553
1554 s = ngx_array_push(conf->headers_source);
1555 if (s == NULL) {
1556 return NGX_CONF_ERROR;
1557 }
1558
1559 *s = *h;
1560
1561 next:
1562
1563 continue;
1564 }
1565
1566 for (i = 0; i < conf->headers_source->nelts; i++) {
904 1567
905 name = ngx_array_push(conf->headers_names); 1568 name = ngx_array_push(conf->headers_names);
906 if (name == NULL) { 1569 if (name == NULL) {
907 return NGX_CONF_ERROR; 1570 return NGX_CONF_ERROR;
908 } 1571 }
909 1572
910 name->len = sizeof("Host") - 1; 1573 *name = src[i].key;
911 name->data = (u_char *) "Host"; 1574
912 1575 if (ngx_http_script_variables_count(&src[i].value) == 0) {
913 src = ngx_array_push(conf->headers_sources); 1576 copy = ngx_array_push_n(conf->headers_set_len,
914 if (src == NULL) { 1577 sizeof(ngx_http_script_copy_code_t));
1578 if (copy == NULL) {
1579 return NGX_CONF_ERROR;
1580 }
1581
1582 copy->code = (ngx_http_script_code_pt)
1583 ngx_http_script_copy_len_code;
1584 copy->len = src[i].key.len + sizeof(": ") - 1
1585 + src[i].value.len + sizeof(CRLF) - 1;
1586
1587
1588 size = (sizeof(ngx_http_script_copy_code_t)
1589 + src[i].key.len + sizeof(": ") - 1
1590 + src[i].value.len + sizeof(CRLF) - 1
1591 + sizeof(uintptr_t) - 1)
1592 & ~(sizeof(uintptr_t) - 1);
1593
1594 copy = ngx_array_push_n(conf->headers_set, size);
1595 if (copy == NULL) {
1596 return NGX_CONF_ERROR;
1597 }
1598
1599 copy->code = ngx_http_script_copy_code;
1600 copy->len = src[i].key.len + sizeof(": ") - 1
1601 + src[i].value.len + sizeof(CRLF) - 1;
1602
1603 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
1604
1605 p = ngx_cpymem(p, src[i].key.data, src[i].key.len);
1606 *p++ = ':'; *p++ = ' ';
1607 p = ngx_cpymem(p, src[i].value.data, src[i].value.len);
1608 *p++ = CR; *p = LF;
1609
1610 } else {
1611 copy = ngx_array_push_n(conf->headers_set_len,
1612 sizeof(ngx_http_script_copy_code_t));
1613 if (copy == NULL) {
1614 return NGX_CONF_ERROR;
1615 }
1616
1617 copy->code = (ngx_http_script_code_pt)
1618 ngx_http_script_copy_len_code;
1619 copy->len = src[i].key.len + sizeof(": ") - 1;
1620
1621
1622 size = (sizeof(ngx_http_script_copy_code_t)
1623 + src[i].key.len + sizeof(": ") - 1 + sizeof(uintptr_t) - 1)
1624 & ~(sizeof(uintptr_t) - 1);
1625
1626 copy = ngx_array_push_n(conf->headers_set, size);
1627 if (copy == NULL) {
1628 return NGX_CONF_ERROR;
1629 }
1630
1631 copy->code = ngx_http_script_copy_code;
1632 copy->len = src[i].key.len + sizeof(": ") - 1;
1633
1634 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
1635 p = ngx_cpymem(p, src[i].key.data, src[i].key.len);
1636 *p++ = ':'; *p = ' ';
1637
1638
1639 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
1640
1641 sc.cf = cf;
1642 sc.source = &src[i].value;
1643 sc.lengths = &conf->headers_set_len;
1644 sc.values = &conf->headers_set;
1645
1646 if (ngx_http_script_compile(&sc) != NGX_OK) {
1647 return NGX_CONF_ERROR;
1648 }
1649
1650
1651 copy = ngx_array_push_n(conf->headers_set_len,
1652 sizeof(ngx_http_script_copy_code_t));
1653 if (copy == NULL) {
1654 return NGX_CONF_ERROR;
1655 }
1656
1657 copy->code = (ngx_http_script_code_pt)
1658 ngx_http_script_copy_len_code;
1659 copy->len = sizeof(CRLF) - 1;
1660
1661
1662 size = (sizeof(ngx_http_script_copy_code_t)
1663 + sizeof(CRLF) - 1 + sizeof(uintptr_t) - 1)
1664 & ~(sizeof(uintptr_t) - 1);
1665
1666 copy = ngx_array_push_n(conf->headers_set, size);
1667 if (copy == NULL) {
1668 return NGX_CONF_ERROR;
1669 }
1670
1671 copy->code = ngx_http_script_copy_code;
1672 copy->len = sizeof(CRLF) - 1;
1673
1674 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
1675 *p++ = CR; *p = LF;
1676 }
1677
1678 code = ngx_array_push_n(conf->headers_set_len, sizeof(uintptr_t));
1679 if (code == NULL) {
915 return NGX_CONF_ERROR; 1680 return NGX_CONF_ERROR;
916 } 1681 }
917 1682
918 src->hash = 0; 1683 *code = (uintptr_t) NULL;
919 src->key.len = sizeof("Host") - 1; 1684
920 src->key.data = (u_char *) "Host"; 1685 code = ngx_array_push_n(conf->headers_set, sizeof(uintptr_t));
921 src->value.len = sizeof("$PROXY_HOST") - 1; 1686 if (code == NULL) {
922 src->value.data = (u_char *) "$PROXY_HOST";
923
924
925 name = ngx_array_push(conf->headers_names);
926 if (name == NULL) {
927 return NGX_CONF_ERROR; 1687 return NGX_CONF_ERROR;
928 } 1688 }
929 1689
930 name->len = sizeof("Connection") - 1; 1690 *code = (uintptr_t) NULL;
931 name->data = (u_char *) "Connection"; 1691 }
932 1692
933 src = ngx_array_push(conf->headers_sources); 1693 code = ngx_array_push_n(conf->headers_set_len, sizeof(uintptr_t));
934 if (src == NULL) { 1694 if (code == NULL) {
935 return NGX_CONF_ERROR; 1695 return NGX_CONF_ERROR;
936 } 1696 }
937 1697
938 src->hash = 0; 1698 *code = (uintptr_t) NULL;
939 src->key.len = sizeof("Connection") - 1; 1699
940 src->key.data = (u_char *) "Connection"; 1700
941 src->value.len = sizeof("close") - 1; 1701 conf->headers_set_hash = ngx_pcalloc(cf->pool, sizeof(ngx_hash_t));
942 src->value.data = (u_char *) "close"; 1702 if (conf->headers_set_hash == NULL) {
943 1703 return NGX_CONF_ERROR;
944 1704 }
945 name = ngx_array_push(conf->headers_names); 1705
946 if (name == NULL) { 1706 conf->headers_set_hash->max_size = 100;
947 return NGX_CONF_ERROR; 1707 conf->headers_set_hash->bucket_limit = 1;
948 } 1708 conf->headers_set_hash->bucket_size = sizeof(ngx_str_t);
949 1709 conf->headers_set_hash->name = "proxy_headers";
950 name->len = 0; 1710
951 name->data = NULL; 1711 if (ngx_hash_init(conf->headers_set_hash, cf->pool,
952 1712 conf->headers_names->elts, conf->headers_names->nelts) != NGX_OK)
953 1713 {
954 if (ngx_http_script_compile_lite(cf, conf->headers_sources, 1714 return NGX_CONF_ERROR;
955 &conf->headers_set_len, &conf->headers_set, 1715 }
956 ngx_http_proxy_compile_header_start, 1716
957 ngx_http_proxy_compile_header_end) != NGX_OK) 1717 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, cf->log, 0,
958 { 1718 "proxy_headers hash size: %ui, "
959 return NGX_CONF_ERROR; 1719 "max buckets per entry: %ui",
960 } 1720 conf->headers_set_hash->hash_size,
961 1721 conf->headers_set_hash->min_buckets);
962
963 conf->headers_set_hash = ngx_pcalloc(cf->pool, sizeof(ngx_hash_t));
964 if (conf->headers_set_hash == NULL) {
965 return NGX_CONF_ERROR;
966 }
967
968 conf->headers_set_hash->max_size = 100;
969 conf->headers_set_hash->bucket_limit = 1;
970 conf->headers_set_hash->bucket_size = sizeof(ngx_str_t);
971 conf->headers_set_hash->name = "proxy_headers";
972
973 if (ngx_hash_init(conf->headers_set_hash, cf->pool,
974 conf->headers_names->elts) != NGX_OK)
975 {
976 return NGX_CONF_ERROR;
977 }
978
979 #if 0
980 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, cf->log, 0,
981 #endif
982 ngx_log_error(NGX_LOG_NOTICE, cf->log, 0,
983 "proxy_headers hash size: %ui, "
984 "max buckets per entry: %ui",
985 conf->headers_set_hash->hash_size,
986 conf->headers_set_hash->min_buckets);
987 }
988 1722
989 return NGX_CONF_OK; 1723 return NGX_CONF_OK;
990 }
991
992
993 static ngx_int_t
994 ngx_http_proxy_compile_header_start(ngx_table_elt_t *h,
995 ngx_array_t *lengths, ngx_array_t *values, ngx_uint_t value)
996 {
997 u_char *p;
998 size_t size;
999 ngx_http_script_copy_code_t *copy;
1000
1001 copy = ngx_array_push_n(lengths, sizeof(ngx_http_script_copy_code_t));
1002 if (copy == NULL) {
1003 return NGX_ERROR;
1004 }
1005
1006 copy->code = (ngx_http_script_code_pt) ngx_http_script_copy_len;
1007 copy->len = h->key.len + sizeof(": ") - 1;
1008
1009 if (value) {
1010 copy->len += h->value.len + sizeof(CRLF) - 1;
1011 }
1012
1013 size = (copy->len + sizeof(uintptr_t) - 1) & ~(sizeof(uintptr_t) - 1);
1014
1015 copy = ngx_array_push_n(values,
1016 sizeof(ngx_http_script_copy_code_t) + size);
1017 if (copy == NULL) {
1018 return NGX_ERROR;
1019 }
1020
1021 copy->code = ngx_http_script_copy;
1022 copy->len = h->key.len + sizeof(": ") - 1;
1023
1024 if (value) {
1025 copy->len += h->value.len + sizeof(CRLF) - 1;
1026 }
1027
1028 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
1029
1030 p = ngx_cpymem(p, h->key.data, h->key.len);
1031 p = ngx_cpymem(p, ": ", sizeof(": ") - 1);
1032
1033 if (value) {
1034 p = ngx_cpymem(p, h->value.data, h->value.len);
1035 ngx_memcpy(p, CRLF, sizeof(CRLF) - 1);
1036 }
1037
1038 return NGX_OK;
1039 }
1040
1041
1042 static ngx_int_t
1043 ngx_http_proxy_compile_header_end(ngx_array_t *lengths, ngx_array_t *values)
1044 {
1045 size_t size;
1046 ngx_http_script_copy_code_t *copy;
1047
1048 copy = ngx_array_push_n(lengths, sizeof(ngx_http_script_copy_code_t));
1049 if (copy == NULL) {
1050 return NGX_ERROR;
1051 }
1052
1053 copy->code = (ngx_http_script_code_pt) ngx_http_script_copy_len;
1054 copy->len = sizeof(CRLF) - 1;
1055
1056 size = (sizeof(CRLF) - 1 + sizeof(uintptr_t) - 1)
1057 & ~(sizeof(uintptr_t) - 1);
1058
1059 copy = ngx_array_push_n(values,
1060 sizeof(ngx_http_script_copy_code_t) + size);
1061 if (copy == NULL) {
1062 return NGX_ERROR;
1063 }
1064
1065 copy->code = ngx_http_script_copy;
1066 copy->len = sizeof(CRLF) - 1;
1067
1068 ngx_memcpy((u_char *) copy + sizeof(ngx_http_script_copy_code_t),
1069 CRLF, sizeof(CRLF) - 1);
1070
1071 return NGX_OK;
1072 } 1724 }
1073 1725
1074 1726
1075 static char * 1727 static char *
1076 ngx_http_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) 1728 ngx_http_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
1077 { 1729 {
1078 ngx_http_proxy_loc_conf_t *lcf = conf; 1730 ngx_http_proxy_loc_conf_t *plcf = conf;
1079 1731
1080 ngx_uint_t i; 1732 ngx_uint_t i;
1081 ngx_str_t *value, *url; 1733 ngx_str_t *value, *url;
1082 ngx_inet_upstream_t inet_upstream; 1734 ngx_inet_upstream_t inet_upstream;
1083 ngx_http_core_loc_conf_t *clcf; 1735 ngx_http_core_loc_conf_t *clcf;
1103 unix_upstream.name = *url; 1755 unix_upstream.name = *url;
1104 unix_upstream.url.len = url->len - 7; 1756 unix_upstream.url.len = url->len - 7;
1105 unix_upstream.url.data = url->data + 7; 1757 unix_upstream.url.data = url->data + 7;
1106 unix_upstream.uri_part = 1; 1758 unix_upstream.uri_part = 1;
1107 1759
1108 lcf->peers = ngx_unix_upstream_parse(cf, &unix_upstream); 1760 plcf->peers = ngx_unix_upstream_parse(cf, &unix_upstream);
1109 if (lcf->peers == NULL) { 1761 if (plcf->peers == NULL) {
1110 return NGX_CONF_ERROR; 1762 return NGX_CONF_ERROR;
1111 } 1763 }
1112 1764
1113 lcf->peers->peer[0].uri_separator = ":"; 1765 plcf->peers->peer[0].uri_separator = ":";
1114 1766
1115 lcf->host_header.len = sizeof("localhost") - 1; 1767 plcf->host_header.len = sizeof("localhost") - 1;
1116 lcf->host_header.data = (u_char *) "localhost"; 1768 plcf->host_header.data = (u_char *) "localhost";
1117 lcf->uri0 = unix_upstream.uri; 1769 plcf->upstream.uri = unix_upstream.uri;
1118 #if 0
1119 STUB
1120 lcf->upstream->default_port = 1;
1121 #endif
1122 1770
1123 #else 1771 #else
1124 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, 1772 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
1125 "the unix domain sockets are not supported " 1773 "the unix domain sockets are not supported "
1126 "on this platform"); 1774 "on this platform");
1135 inet_upstream.url.len = url->len - 7; 1783 inet_upstream.url.len = url->len - 7;
1136 inet_upstream.url.data = url->data + 7; 1784 inet_upstream.url.data = url->data + 7;
1137 inet_upstream.default_port_value = 80; 1785 inet_upstream.default_port_value = 80;
1138 inet_upstream.uri_part = 1; 1786 inet_upstream.uri_part = 1;
1139 1787
1140 lcf->peers = ngx_inet_upstream_parse(cf, &inet_upstream); 1788 plcf->peers = ngx_inet_upstream_parse(cf, &inet_upstream);
1141 if (lcf->peers == NULL) { 1789 if (plcf->peers == NULL) {
1142 return NGX_CONF_ERROR; 1790 return NGX_CONF_ERROR;
1143 } 1791 }
1144 1792
1145 for (i = 0; i < lcf->peers->number; i++) { 1793 for (i = 0; i < plcf->peers->number; i++) {
1146 lcf->peers->peer[i].uri_separator = ":"; 1794 plcf->peers->peer[i].uri_separator = ":";
1147 } 1795 }
1148 1796
1149 lcf->host_header = inet_upstream.host_header; 1797 plcf->host_header = inet_upstream.host_header;
1150 lcf->uri0 = inet_upstream.uri; 1798 plcf->port_text = inet_upstream.port_text;
1151 #if 0 1799 plcf->upstream.uri = inet_upstream.uri;
1152 STUB 1800 }
1153 lcf->port_text = inet_upstream.port_text; 1801
1154 lcf->upstream->default_port = inet_upstream.default_port; 1802 plcf->upstream.schema.len = sizeof("http://") - 1;
1803 plcf->upstream.schema.data = (u_char *) "http://";
1804
1805 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module);
1806
1807 clcf->handler = ngx_http_proxy_handler;
1808
1809 #if (NGX_PCRE)
1810 plcf->upstream.location = clcf->regex ? &ngx_http_proxy_uri : &clcf->name;
1811 #else
1812 plcf->upstream.location = &clcf->name;
1155 #endif 1813 #endif
1156 } 1814
1157 1815 plcf->upstream.url = *url;
1158 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module);
1159
1160 clcf->handler = ngx_http_proxy_handler;
1161
1162 #if (NGX_PCRE)
1163 lcf->location0 = clcf->regex ? &ngx_http_proxy_uri : &clcf->name;
1164 #else
1165 lcf->location0 = &clcf->name;
1166 #endif
1167 1816
1168 if (clcf->name.data[clcf->name.len - 1] == '/') { 1817 if (clcf->name.data[clcf->name.len - 1] == '/') {
1169 clcf->auto_redirect = 1; 1818 clcf->auto_redirect = 1;
1170 } 1819 }
1171 1820
1172 return NGX_CONF_OK; 1821 return NGX_CONF_OK;
1173 } 1822 }
1174 1823
1175 1824
1176 static char * 1825 static char *
1177 ngx_http_proxy_set_x_var(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) 1826 ngx_http_proxy_redirect(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
1178 { 1827 {
1828 ngx_http_proxy_loc_conf_t *plcf = conf;
1829
1830 ngx_str_t *value;
1831 ngx_array_t *vars_lengths, *vars_values;
1832 ngx_http_script_compile_t sc;
1833 ngx_http_proxy_redirect_t *pr;
1834
1835 if (plcf->redirect == 0) {
1836 return NGX_CONF_OK;
1837 }
1838
1839 value = cf->args->elts;
1840
1841 if (ngx_strcmp(value[1].data, "off") == 0) {
1842 plcf->redirect = 0;
1843 plcf->redirects = NULL;
1844 return NGX_CONF_OK;
1845 }
1846
1847 if (plcf->redirects == NULL) {
1848 plcf->redirects = ngx_array_create(cf->pool, 1,
1849 sizeof(ngx_http_proxy_redirect_t));
1850 if (plcf->redirects == NULL) {
1851 return NGX_CONF_ERROR;
1852 }
1853 }
1854
1855 pr = ngx_array_push(plcf->redirects);
1856 if (pr == NULL) {
1857 return NGX_CONF_ERROR;
1858 }
1859
1860 if (cf->args->nelts == 2 && ngx_strcmp(value[1].data, "default") == 0) {
1861 if (plcf->upstream.url.data == NULL) {
1862 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
1863 "\"proxy_rewrite_location default\" must go "
1864 "after the \"proxy_pass\" directive");
1865 return NGX_CONF_ERROR;
1866 }
1867
1868 pr->handler = ngx_http_proxy_rewrite_redirect_text;
1869 pr->redirect = plcf->upstream.url;
1870 pr->replacement.text = *plcf->upstream.location;
1871
1872 return NGX_CONF_OK;
1873 }
1874
1875 if (ngx_http_script_variables_count(&value[2]) == 0) {
1876 pr->handler = ngx_http_proxy_rewrite_redirect_text;
1877 pr->redirect = value[1];
1878 pr->replacement.text = value[2];
1879
1880 return NGX_CONF_OK;
1881 }
1882
1883 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
1884
1885 vars_lengths = NULL;
1886 vars_values = NULL;
1887
1888 sc.cf = cf;
1889 sc.source = &value[2];
1890 sc.lengths = &vars_lengths;
1891 sc.values = &vars_values;
1892 sc.complete_lengths = 1;
1893 sc.complete_values = 1;
1894
1895 if (ngx_http_script_compile(&sc) != NGX_OK) {
1896 return NGX_CONF_ERROR;
1897 }
1898
1899 pr->handler = ngx_http_proxy_rewrite_redirect_vars;
1900 pr->redirect = value[1];
1901 pr->replacement.vars.lengths = vars_lengths->elts;
1902 pr->replacement.vars.values = vars_values->elts;
1903
1179 return NGX_CONF_OK; 1904 return NGX_CONF_OK;
1180 } 1905 }
1181 1906
1182 1907
1183 static char * 1908 static char *