Mercurial > hg > nginx
annotate src/http/ngx_http_upstream.h @ 2786:4e002555652d
proxy_ignore_headers and fastcgi_ignore_headers
author | Igor Sysoev <igor@sysoev.ru> |
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date | Thu, 30 Apr 2009 16:15:07 +0000 |
parents | 7d16774c757c |
children | 6e1941b321b7 |
rev | line source |
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479 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4 */ | |
5 | |
6 | |
7 #ifndef _NGX_HTTP_UPSTREAM_H_INCLUDED_ | |
8 #define _NGX_HTTP_UPSTREAM_H_INCLUDED_ | |
9 | |
10 | |
11 #include <ngx_config.h> | |
12 #include <ngx_core.h> | |
13 #include <ngx_event.h> | |
14 #include <ngx_event_connect.h> | |
15 #include <ngx_event_pipe.h> | |
16 #include <ngx_http.h> | |
17 | |
18 | |
665 | 19 #define NGX_HTTP_UPSTREAM_FT_ERROR 0x00000002 |
20 #define NGX_HTTP_UPSTREAM_FT_TIMEOUT 0x00000004 | |
21 #define NGX_HTTP_UPSTREAM_FT_INVALID_HEADER 0x00000008 | |
22 #define NGX_HTTP_UPSTREAM_FT_HTTP_500 0x00000010 | |
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23 #define NGX_HTTP_UPSTREAM_FT_HTTP_502 0x00000020 |
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24 #define NGX_HTTP_UPSTREAM_FT_HTTP_503 0x00000040 |
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25 #define NGX_HTTP_UPSTREAM_FT_HTTP_504 0x00000080 |
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26 #define NGX_HTTP_UPSTREAM_FT_HTTP_404 0x00000100 |
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27 #define NGX_HTTP_UPSTREAM_FT_BUSY_LOCK 0x00000200 |
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28 #define NGX_HTTP_UPSTREAM_FT_MAX_WAITING 0x00000400 |
1378 | 29 #define NGX_HTTP_UPSTREAM_FT_NOLIVE 0x40000000 |
665 | 30 #define NGX_HTTP_UPSTREAM_FT_OFF 0x80000000 |
479 | 31 |
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32 #define NGX_HTTP_UPSTREAM_FT_STATUS (NGX_HTTP_UPSTREAM_FT_HTTP_500 \ |
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33 |NGX_HTTP_UPSTREAM_FT_HTTP_502 \ |
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34 |NGX_HTTP_UPSTREAM_FT_HTTP_503 \ |
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35 |NGX_HTTP_UPSTREAM_FT_HTTP_504 \ |
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36 |NGX_HTTP_UPSTREAM_FT_HTTP_404) |
479 | 37 |
38 #define NGX_HTTP_UPSTREAM_INVALID_HEADER 40 | |
39 | |
40 | |
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41 #define NGX_HTTP_UPSTREAM_IGN_XA_REDIRECT 0x00000002 |
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42 #define NGX_HTTP_UPSTREAM_IGN_XA_EXPIRES 0x00000004 |
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43 #define NGX_HTTP_UPSTREAM_IGN_EXPIRES 0x00000008 |
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44 #define NGX_HTTP_UPSTREAM_IGN_CACHE_CONTROL 0x00000010 |
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45 |
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46 |
479 | 47 typedef struct { |
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48 ngx_msec_t bl_time; |
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49 ngx_uint_t bl_state; |
479 | 50 |
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51 ngx_uint_t status; |
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52 time_t response_sec; |
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53 ngx_uint_t response_msec; |
2402 | 54 off_t response_length; |
563 | 55 |
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56 ngx_str_t *peer; |
479 | 57 } ngx_http_upstream_state_t; |
58 | |
59 | |
60 typedef struct { | |
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61 ngx_hash_t headers_in_hash; |
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62 ngx_array_t upstreams; |
884 | 63 /* ngx_http_upstream_srv_conf_t */ |
509 | 64 } ngx_http_upstream_main_conf_t; |
65 | |
884 | 66 typedef struct ngx_http_upstream_srv_conf_s ngx_http_upstream_srv_conf_t; |
67 | |
68 typedef ngx_int_t (*ngx_http_upstream_init_pt)(ngx_conf_t *cf, | |
69 ngx_http_upstream_srv_conf_t *us); | |
70 typedef ngx_int_t (*ngx_http_upstream_init_peer_pt)(ngx_http_request_t *r, | |
71 ngx_http_upstream_srv_conf_t *us); | |
72 | |
73 | |
74 typedef struct { | |
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75 ngx_http_upstream_init_pt init_upstream; |
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76 ngx_http_upstream_init_peer_pt init; |
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77 void *data; |
884 | 78 } ngx_http_upstream_peer_t; |
79 | |
509 | 80 |
81 typedef struct { | |
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82 ngx_peer_addr_t *addrs; |
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83 ngx_uint_t naddrs; |
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84 ngx_uint_t weight; |
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85 ngx_uint_t max_fails; |
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86 time_t fail_timeout; |
884 | 87 |
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88 unsigned down:1; |
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89 unsigned backup:1; |
884 | 90 } ngx_http_upstream_server_t; |
91 | |
651 | 92 |
884 | 93 #define NGX_HTTP_UPSTREAM_CREATE 0x0001 |
94 #define NGX_HTTP_UPSTREAM_WEIGHT 0x0002 | |
95 #define NGX_HTTP_UPSTREAM_MAX_FAILS 0x0004 | |
96 #define NGX_HTTP_UPSTREAM_FAIL_TIMEOUT 0x0008 | |
97 #define NGX_HTTP_UPSTREAM_DOWN 0x0010 | |
98 #define NGX_HTTP_UPSTREAM_BACKUP 0x0020 | |
99 | |
651 | 100 |
884 | 101 struct ngx_http_upstream_srv_conf_s { |
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102 ngx_http_upstream_peer_t peer; |
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103 void **srv_conf; |
884 | 104 |
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105 ngx_array_t *servers; /* ngx_http_upstream_server_t */ |
884 | 106 |
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107 ngx_uint_t flags; |
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108 ngx_str_t host; |
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109 u_char *file_name; |
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110 ngx_uint_t line; |
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111 in_port_t port; |
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112 in_port_t default_port; |
884 | 113 }; |
651 | 114 |
115 | |
116 typedef struct { | |
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117 ngx_http_upstream_srv_conf_t *upstream; |
884 | 118 |
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119 ngx_msec_t connect_timeout; |
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120 ngx_msec_t send_timeout; |
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121 ngx_msec_t read_timeout; |
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122 ngx_msec_t timeout; |
479 | 123 |
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124 size_t send_lowat; |
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125 size_t buffer_size; |
529 | 126 |
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127 size_t busy_buffers_size; |
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128 size_t max_temp_file_size; |
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129 size_t temp_file_write_size; |
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130 |
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131 size_t busy_buffers_size_conf; |
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132 size_t max_temp_file_size_conf; |
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133 size_t temp_file_write_size_conf; |
509 | 134 |
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135 ngx_bufs_t bufs; |
529 | 136 |
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137 ngx_uint_t ignore_headers; |
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138 ngx_uint_t next_upstream; |
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139 ngx_uint_t store_access; |
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140 ngx_flag_t buffering; |
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141 ngx_flag_t pass_request_headers; |
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142 ngx_flag_t pass_request_body; |
479 | 143 |
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144 ngx_flag_t ignore_client_abort; |
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145 ngx_flag_t intercept_errors; |
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146 ngx_flag_t cyclic_temp_file; |
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147 |
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148 ngx_path_t *temp_path; |
479 | 149 |
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150 ngx_hash_t hide_headers_hash; |
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151 ngx_array_t *hide_headers; |
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152 ngx_array_t *pass_headers; |
509 | 153 |
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154 #if (NGX_HTTP_CACHE) |
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155 ngx_shm_zone_t *cache; |
479 | 156 |
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157 ngx_uint_t cache_min_uses; |
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158 ngx_uint_t cache_use_stale; |
479 | 159 |
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160 ngx_array_t *cache_valid; |
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161 #endif |
509 | 162 |
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163 ngx_array_t *store_lengths; |
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164 ngx_array_t *store_values; |
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165 |
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166 signed store:2; |
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167 unsigned intercept_404:1; |
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168 unsigned change_buffering:1; |
581 | 169 |
577 | 170 #if (NGX_HTTP_SSL) |
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171 ngx_ssl_t *ssl; |
2754 | 172 ngx_flag_t ssl_session_reuse; |
577 | 173 #endif |
174 | |
479 | 175 } ngx_http_upstream_conf_t; |
176 | |
177 | |
509 | 178 typedef struct { |
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179 ngx_str_t name; |
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180 ngx_http_header_handler_pt handler; |
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181 ngx_uint_t offset; |
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182 ngx_http_header_handler_pt copy_handler; |
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183 ngx_uint_t conf; |
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184 ngx_uint_t redirect; /* unsigned redirect:1; */ |
509 | 185 } ngx_http_upstream_header_t; |
186 | |
187 | |
188 typedef struct { | |
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189 ngx_list_t headers; |
509 | 190 |
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191 ngx_uint_t status_n; |
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192 ngx_str_t status_line; |
529 | 193 |
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194 ngx_table_elt_t *status; |
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195 ngx_table_elt_t *date; |
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196 ngx_table_elt_t *server; |
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197 ngx_table_elt_t *connection; |
509 | 198 |
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199 ngx_table_elt_t *expires; |
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200 ngx_table_elt_t *etag; |
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201 ngx_table_elt_t *x_accel_expires; |
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202 ngx_table_elt_t *x_accel_redirect; |
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203 ngx_table_elt_t *x_accel_limit_rate; |
509 | 204 |
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205 ngx_table_elt_t *content_type; |
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206 ngx_table_elt_t *content_length; |
509 | 207 |
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208 ngx_table_elt_t *last_modified; |
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209 ngx_table_elt_t *location; |
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210 ngx_table_elt_t *accept_ranges; |
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211 ngx_table_elt_t *www_authenticate; |
509 | 212 |
213 #if (NGX_HTTP_GZIP) | |
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214 ngx_table_elt_t *content_encoding; |
509 | 215 #endif |
216 | |
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217 off_t content_length_n; |
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218 |
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219 ngx_array_t cache_control; |
509 | 220 } ngx_http_upstream_headers_in_t; |
221 | |
479 | 222 |
1658 | 223 typedef struct { |
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224 ngx_str_t host; |
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225 in_port_t port; |
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226 ngx_uint_t no_port; /* unsigned no_port:1 */ |
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227 |
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228 ngx_uint_t naddrs; |
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229 in_addr_t *addrs; |
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230 |
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231 struct sockaddr *sockaddr; |
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232 socklen_t socklen; |
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233 |
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234 ngx_resolver_ctx_t *ctx; |
1658 | 235 } ngx_http_upstream_resolved_t; |
236 | |
237 | |
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238 typedef void (*ngx_http_upstream_handler_pt)(ngx_http_request_t *r, |
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239 ngx_http_upstream_t *u); |
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240 |
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241 |
479 | 242 struct ngx_http_upstream_s { |
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243 ngx_http_upstream_handler_pt read_event_handler; |
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244 ngx_http_upstream_handler_pt write_event_handler; |
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245 |
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246 ngx_peer_connection_t peer; |
479 | 247 |
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248 ngx_event_pipe_t *pipe; |
479 | 249 |
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250 ngx_chain_t *request_bufs; |
479 | 251 |
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252 ngx_output_chain_ctx_t output; |
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253 ngx_chain_writer_ctx_t writer; |
479 | 254 |
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255 ngx_http_upstream_conf_t *conf; |
479 | 256 |
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257 ngx_http_upstream_headers_in_t headers_in; |
509 | 258 |
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259 ngx_http_upstream_resolved_t *resolved; |
1658 | 260 |
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261 ngx_buf_t buffer; |
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262 size_t length; |
581 | 263 |
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264 ngx_chain_t *out_bufs; |
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265 ngx_chain_t *busy_bufs; |
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266 ngx_chain_t *free_bufs; |
581 | 267 |
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268 ngx_int_t (*input_filter_init)(void *data); |
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269 ngx_int_t (*input_filter)(void *data, ssize_t bytes); |
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270 void *input_filter_ctx; |
479 | 271 |
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272 #if (NGX_HTTP_CACHE) |
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273 ngx_int_t (*create_key)(ngx_http_request_t *r); |
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274 #endif |
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275 ngx_int_t (*create_request)(ngx_http_request_t *r); |
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276 ngx_int_t (*reinit_request)(ngx_http_request_t *r); |
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277 ngx_int_t (*process_header)(ngx_http_request_t *r); |
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278 void (*abort_request)(ngx_http_request_t *r); |
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279 void (*finalize_request)(ngx_http_request_t *r, |
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280 ngx_int_t rc); |
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281 ngx_int_t (*rewrite_redirect)(ngx_http_request_t *r, |
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282 ngx_table_elt_t *h, size_t prefix); |
479 | 283 |
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284 ngx_msec_t timeout; |
527 | 285 |
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286 ngx_http_upstream_state_t *state; |
479 | 287 |
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288 ngx_str_t method; |
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289 ngx_str_t schema; |
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290 ngx_str_t uri; |
555 | 291 |
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292 ngx_http_cleanup_pt *cleanup; |
569 | 293 |
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294 unsigned store:1; |
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295 unsigned cacheable:1; |
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296 unsigned accel:1; |
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297 unsigned ssl:1; |
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298 #if (NGX_HTTP_CACHE) |
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299 unsigned stale_cache:1; |
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300 #endif |
479 | 301 |
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302 unsigned buffering:1; |
649 | 303 |
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304 unsigned request_sent:1; |
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305 unsigned header_sent:1; |
479 | 306 }; |
307 | |
308 | |
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309 typedef struct { |
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310 ngx_uint_t status; |
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311 ngx_uint_t mask; |
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312 } ngx_http_upstream_next_t; |
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313 |
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314 |
1162 | 315 ngx_int_t ngx_http_upstream_header_variable(ngx_http_request_t *r, |
316 ngx_http_variable_value_t *v, uintptr_t data); | |
317 | |
479 | 318 void ngx_http_upstream_init(ngx_http_request_t *r); |
651 | 319 ngx_http_upstream_srv_conf_t *ngx_http_upstream_add(ngx_conf_t *cf, |
884 | 320 ngx_url_t *u, ngx_uint_t flags); |
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321 ngx_int_t ngx_http_upstream_hide_headers_hash(ngx_conf_t *cf, |
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322 ngx_http_upstream_conf_t *conf, ngx_http_upstream_conf_t *prev, |
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323 ngx_str_t *default_hide_headers, ngx_hash_init_t *hash); |
884 | 324 |
325 | |
326 #define ngx_http_conf_upstream_srv_conf(uscf, module) \ | |
327 uscf->srv_conf[module.ctx_index] | |
509 | 328 |
479 | 329 |
509 | 330 extern ngx_module_t ngx_http_upstream_module; |
479 | 331 |
332 | |
333 #endif /* _NGX_HTTP_UPSTREAM_H_INCLUDED_ */ |