Mercurial > hg > nginx
annotate src/http/ngx_http_request.h @ 3672:4f021d4ceb88
fix building by owc12: GetLongPathName() is available since Win2K only
author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 05 Jul 2010 12:47:35 +0000 |
parents | 4a643a230686 |
children | e6e453203bae |
rev | line source |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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7 #ifndef _NGX_HTTP_REQUEST_H_INCLUDED_ |
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8 #define _NGX_HTTP_REQUEST_H_INCLUDED_ |
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651 | 11 #define NGX_HTTP_MAX_URI_CHANGES 10 |
657 | 12 #define NGX_HTTP_MAX_SUBREQUESTS 50 |
509 | 13 |
649 | 14 /* must be 2^n */ |
15 #define NGX_HTTP_LC_HEADER_LEN 32 | |
16 | |
509 | 17 |
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18 #define NGX_HTTP_DISCARD_BUFFER_SIZE 4096 |
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19 #define NGX_HTTP_LINGERING_BUFFER_SIZE 4096 |
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20 |
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22 #define NGX_HTTP_VERSION_9 9 |
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23 #define NGX_HTTP_VERSION_10 1000 |
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24 #define NGX_HTTP_VERSION_11 1001 |
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25 |
633 | 26 #define NGX_HTTP_UNKNOWN 0x0001 |
27 #define NGX_HTTP_GET 0x0002 | |
28 #define NGX_HTTP_HEAD 0x0004 | |
29 #define NGX_HTTP_POST 0x0008 | |
30 #define NGX_HTTP_PUT 0x0010 | |
31 #define NGX_HTTP_DELETE 0x0020 | |
637 | 32 #define NGX_HTTP_MKCOL 0x0040 |
844 | 33 #define NGX_HTTP_COPY 0x0080 |
34 #define NGX_HTTP_MOVE 0x0100 | |
35 #define NGX_HTTP_OPTIONS 0x0200 | |
36 #define NGX_HTTP_PROPFIND 0x0400 | |
37 #define NGX_HTTP_PROPPATCH 0x0800 | |
38 #define NGX_HTTP_LOCK 0x1000 | |
39 #define NGX_HTTP_UNLOCK 0x2000 | |
3613 | 40 #define NGX_HTTP_PATCH 0x4000 |
41 #define NGX_HTTP_TRACE 0x8000 | |
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43 #define NGX_HTTP_CONNECTION_CLOSE 1 |
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44 #define NGX_HTTP_CONNECTION_KEEP_ALIVE 2 |
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45 |
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47 #define NGX_NONE 1 |
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48 |
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50 #define NGX_HTTP_PARSE_HEADER_DONE 1 |
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51 |
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52 #define NGX_HTTP_CLIENT_ERROR 10 |
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53 #define NGX_HTTP_PARSE_INVALID_METHOD 10 |
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54 #define NGX_HTTP_PARSE_INVALID_REQUEST 11 |
505 | 55 #define NGX_HTTP_PARSE_INVALID_09_METHOD 12 |
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505 | 57 #define NGX_HTTP_PARSE_INVALID_HEADER 13 |
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58 |
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3527 | 60 /* unused 1 */ |
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61 #define NGX_HTTP_SUBREQUEST_IN_MEMORY 2 |
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62 #define NGX_HTTP_SUBREQUEST_WAITED 4 |
3161 | 63 #define NGX_HTTP_LOG_UNSAFE 8 |
573 | 64 |
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66 #define NGX_HTTP_OK 200 |
633 | 67 #define NGX_HTTP_CREATED 201 |
3604 | 68 #define NGX_HTTP_ACCEPTED 202 |
511 | 69 #define NGX_HTTP_NO_CONTENT 204 |
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70 #define NGX_HTTP_PARTIAL_CONTENT 206 |
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71 |
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72 #define NGX_HTTP_SPECIAL_RESPONSE 300 |
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73 #define NGX_HTTP_MOVED_PERMANENTLY 301 |
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74 #define NGX_HTTP_MOVED_TEMPORARILY 302 |
3631 | 75 #define NGX_HTTP_SEE_OTHER 303 |
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76 #define NGX_HTTP_NOT_MODIFIED 304 |
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77 |
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78 #define NGX_HTTP_BAD_REQUEST 400 |
503 | 79 #define NGX_HTTP_UNAUTHORIZED 401 |
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80 #define NGX_HTTP_FORBIDDEN 403 |
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81 #define NGX_HTTP_NOT_FOUND 404 |
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82 #define NGX_HTTP_NOT_ALLOWED 405 |
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83 #define NGX_HTTP_REQUEST_TIME_OUT 408 |
637 | 84 #define NGX_HTTP_CONFLICT 409 |
581 | 85 #define NGX_HTTP_LENGTH_REQUIRED 411 |
1057 | 86 #define NGX_HTTP_PRECONDITION_FAILED 412 |
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87 #define NGX_HTTP_REQUEST_ENTITY_TOO_LARGE 413 |
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88 #define NGX_HTTP_REQUEST_URI_TOO_LARGE 414 |
637 | 89 #define NGX_HTTP_UNSUPPORTED_MEDIA_TYPE 415 |
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90 #define NGX_HTTP_RANGE_NOT_SATISFIABLE 416 |
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91 |
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92 |
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93 /* Our own HTTP codes */ |
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94 |
587 | 95 /* The special code to close connection without any response */ |
96 #define NGX_HTTP_CLOSE 444 | |
97 | |
647 | 98 #define NGX_HTTP_OWN_CODES 495 |
99 | |
100 #define NGX_HTTPS_CERT_ERROR 495 | |
101 #define NGX_HTTPS_NO_CERT 496 | |
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102 |
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103 /* |
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104 * We use the special code for the plain HTTP requests that are sent to |
577 | 105 * HTTPS port to distinguish it from 4XX in an error page redirection |
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106 */ |
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107 #define NGX_HTTP_TO_HTTPS 497 |
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108 |
613 | 109 /* 498 is the canceled code for the requests with invalid host name */ |
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110 |
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111 /* |
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112 * HTTP does not define the code for the case when a client closed |
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113 * the connection while we are processing its request so we introduce |
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114 * own code to log such situation when a client has closed the connection |
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115 * before we even try to send the HTTP header to it |
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116 */ |
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117 #define NGX_HTTP_CLIENT_CLOSED_REQUEST 499 |
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118 |
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119 |
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120 #define NGX_HTTP_INTERNAL_SERVER_ERROR 500 |
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121 #define NGX_HTTP_NOT_IMPLEMENTED 501 |
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122 #define NGX_HTTP_BAD_GATEWAY 502 |
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123 #define NGX_HTTP_SERVICE_UNAVAILABLE 503 |
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124 #define NGX_HTTP_GATEWAY_TIME_OUT 504 |
637 | 125 #define NGX_HTTP_INSUFFICIENT_STORAGE 507 |
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126 |
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127 |
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128 #define NGX_HTTP_LOWLEVEL_BUFFERED 0xf0 |
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129 #define NGX_HTTP_WRITE_BUFFERED 0x10 |
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130 #define NGX_HTTP_GZIP_BUFFERED 0x20 |
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131 #define NGX_HTTP_SSI_BUFFERED 0x01 |
1172 | 132 #define NGX_HTTP_SUB_BUFFERED 0x02 |
133 #define NGX_HTTP_COPY_BUFFERED 0x04 | |
597 | 134 |
135 | |
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136 typedef enum { |
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137 NGX_HTTP_INITING_REQUEST_STATE = 0, |
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138 NGX_HTTP_READING_REQUEST_STATE, |
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139 NGX_HTTP_PROCESS_REQUEST_STATE, |
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140 |
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141 NGX_HTTP_CONNECT_UPSTREAM_STATE, |
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142 NGX_HTTP_WRITING_UPSTREAM_STATE, |
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143 NGX_HTTP_READING_UPSTREAM_STATE, |
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parents:
210
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144 |
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210
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145 NGX_HTTP_WRITING_REQUEST_STATE, |
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210
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146 NGX_HTTP_LINGERING_CLOSE_STATE, |
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210
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147 NGX_HTTP_KEEPALIVE_STATE |
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148 } ngx_http_state_e; |
91
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149 |
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150 |
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151 typedef struct { |
501 | 152 ngx_str_t name; |
153 ngx_uint_t offset; | |
509 | 154 ngx_http_header_handler_pt handler; |
91
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155 } ngx_http_header_t; |
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156 |
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157 |
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158 typedef struct { |
509 | 159 ngx_str_t name; |
160 ngx_uint_t offset; | |
569 | 161 } ngx_http_header_out_t; |
509 | 162 |
163 | |
164 typedef struct { | |
501 | 165 ngx_list_t headers; |
164
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162
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166 |
501 | 167 ngx_table_elt_t *host; |
168 ngx_table_elt_t *connection; | |
169 ngx_table_elt_t *if_modified_since; | |
170 ngx_table_elt_t *user_agent; | |
171 ngx_table_elt_t *referer; | |
172 ngx_table_elt_t *content_length; | |
173 ngx_table_elt_t *content_type; | |
155
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154
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174 |
501 | 175 ngx_table_elt_t *range; |
1630 | 176 ngx_table_elt_t *if_range; |
287
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177 |
581 | 178 ngx_table_elt_t *transfer_encoding; |
2067 | 179 ngx_table_elt_t *expect; |
581 | 180 |
287
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232
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181 #if (NGX_HTTP_GZIP) |
501 | 182 ngx_table_elt_t *accept_encoding; |
183 ngx_table_elt_t *via; | |
287
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184 #endif |
99
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185 |
501 | 186 ngx_table_elt_t *authorization; |
172
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187 |
501 | 188 ngx_table_elt_t *keep_alive; |
91
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189 |
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190 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP || NGX_HTTP_GEO) |
501 | 191 ngx_table_elt_t *x_forwarded_for; |
287
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192 #endif |
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193 |
573 | 194 #if (NGX_HTTP_REALIP) |
195 ngx_table_elt_t *x_real_ip; | |
196 #endif | |
197 | |
489 | 198 #if (NGX_HTTP_HEADERS) |
501 | 199 ngx_table_elt_t *accept; |
200 ngx_table_elt_t *accept_language; | |
489 | 201 #endif |
202 | |
637 | 203 #if (NGX_HTTP_DAV) |
204 ngx_table_elt_t *depth; | |
205 ngx_table_elt_t *destination; | |
1059 | 206 ngx_table_elt_t *overwrite; |
681 | 207 ngx_table_elt_t *date; |
637 | 208 #endif |
209 | |
503 | 210 ngx_str_t user; |
211 ngx_str_t passwd; | |
212 | |
501 | 213 ngx_array_t cookies; |
214 | |
2007
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215 ngx_str_t server; |
663 | 216 off_t content_length_n; |
501 | 217 time_t keep_alive_n; |
408
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396
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218 |
501 | 219 unsigned connection_type:2; |
220 unsigned msie:1; | |
221 unsigned msie4:1; | |
2205 | 222 unsigned msie6:1; |
501 | 223 unsigned opera:1; |
224 unsigned gecko:1; | |
3315 | 225 unsigned chrome:1; |
3419
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226 unsigned safari:1; |
501 | 227 unsigned konqueror:1; |
91
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228 } ngx_http_headers_in_t; |
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229 |
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230 |
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231 typedef struct { |
501 | 232 ngx_list_t headers; |
164
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233 |
501 | 234 ngx_uint_t status; |
235 ngx_str_t status_line; | |
91
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236 |
501 | 237 ngx_table_elt_t *server; |
238 ngx_table_elt_t *date; | |
239 ngx_table_elt_t *content_length; | |
240 ngx_table_elt_t *content_encoding; | |
241 ngx_table_elt_t *location; | |
1654 | 242 ngx_table_elt_t *refresh; |
501 | 243 ngx_table_elt_t *last_modified; |
244 ngx_table_elt_t *content_range; | |
245 ngx_table_elt_t *accept_ranges; | |
503 | 246 ngx_table_elt_t *www_authenticate; |
501 | 247 ngx_table_elt_t *expires; |
248 ngx_table_elt_t *etag; | |
99
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249 |
657 | 250 ngx_str_t *override_charset; |
251 | |
252 size_t content_type_len; | |
509 | 253 ngx_str_t content_type; |
501 | 254 ngx_str_t charset; |
2138 | 255 u_char *content_type_lowcase; |
256 ngx_uint_t content_type_hash; | |
657 | 257 |
509 | 258 ngx_array_t cache_control; |
259 | |
501 | 260 off_t content_length_n; |
261 time_t date_time; | |
262 time_t last_modified_time; | |
91
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263 } ngx_http_headers_out_t; |
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264 |
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265 |
479 | 266 typedef void (*ngx_http_client_body_handler_pt)(ngx_http_request_t *r); |
267 | |
297
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268 typedef struct { |
479 | 269 ngx_temp_file_t *temp_file; |
270 ngx_chain_t *bufs; | |
271 ngx_buf_t *buf; | |
663 | 272 off_t rest; |
633 | 273 ngx_chain_t *to_write; |
479 | 274 ngx_http_client_body_handler_pt post_handler; |
297
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275 } ngx_http_request_body_t; |
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276 |
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277 |
432
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429
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278 typedef struct { |
501 | 279 ngx_http_request_t *request; |
433
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432
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280 |
501 | 281 ngx_buf_t **busy; |
282 ngx_int_t nbusy; | |
433
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432
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283 |
501 | 284 ngx_buf_t **free; |
285 ngx_int_t nfree; | |
433
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432
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286 |
501 | 287 ngx_uint_t pipeline; /* unsigned pipeline:1; */ |
432
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288 } ngx_http_connection_t; |
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289 |
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290 |
1387 | 291 typedef struct ngx_http_server_name_s ngx_http_server_name_t; |
292 | |
293 | |
294 typedef struct { | |
295 ngx_hash_combined_t names; | |
296 | |
297 ngx_uint_t nregex; | |
298 ngx_http_server_name_t *regex; | |
299 } ngx_http_virtual_names_t; | |
593 | 300 |
301 | |
569 | 302 typedef void (*ngx_http_cleanup_pt)(void *data); |
303 | |
304 typedef struct ngx_http_cleanup_s ngx_http_cleanup_t; | |
305 | |
306 struct ngx_http_cleanup_s { | |
593 | 307 ngx_http_cleanup_pt handler; |
308 void *data; | |
309 ngx_http_cleanup_t *next; | |
569 | 310 }; |
311 | |
312 | |
777
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313 typedef ngx_int_t (*ngx_http_post_subrequest_pt)(ngx_http_request_t *r, |
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314 void *data, ngx_int_t rc); |
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315 |
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316 typedef struct { |
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317 ngx_http_post_subrequest_pt handler; |
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318 void *data; |
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319 } ngx_http_post_subrequest_t; |
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320 |
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321 |
509 | 322 typedef struct ngx_http_postponed_request_s ngx_http_postponed_request_t; |
323 | |
324 struct ngx_http_postponed_request_s { | |
535 | 325 ngx_http_request_t *request; |
326 ngx_chain_t *out; | |
327 ngx_http_postponed_request_t *next; | |
509 | 328 }; |
329 | |
330 | |
2377
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331 typedef struct ngx_http_posted_request_s ngx_http_posted_request_t; |
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332 |
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333 struct ngx_http_posted_request_s { |
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334 ngx_http_request_t *request; |
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335 ngx_http_posted_request_t *next; |
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336 }; |
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337 |
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338 |
356
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346
diff
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339 typedef ngx_int_t (*ngx_http_handler_pt)(ngx_http_request_t *r); |
509 | 340 typedef void (*ngx_http_event_handler_pt)(ngx_http_request_t *r); |
341 | |
143
5526213be452
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diff
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342 |
91
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343 struct ngx_http_request_s { |
501 | 344 uint32_t signature; /* "HTTP" */ |
367
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362
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345 |
501 | 346 ngx_connection_t *connection; |
91
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347 |
501 | 348 void **ctx; |
349 void **main_conf; | |
350 void **srv_conf; | |
351 void **loc_conf; | |
91
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352 |
509 | 353 ngx_http_event_handler_pt read_event_handler; |
354 ngx_http_event_handler_pt write_event_handler; | |
355 | |
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356 #if (NGX_HTTP_CACHE) |
501 | 357 ngx_http_cache_t *cache; |
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358 #endif |
197
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190
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359 |
501 | 360 ngx_http_upstream_t *upstream; |
1168
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361 ngx_array_t *upstream_states; |
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362 /* of ngx_http_upstream_state_t */ |
479 | 363 |
501 | 364 ngx_pool_t *pool; |
365 ngx_buf_t *header_in; | |
91
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366 |
501 | 367 ngx_http_headers_in_t headers_in; |
368 ngx_http_headers_out_t headers_out; | |
91
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369 |
501 | 370 ngx_http_request_body_t *request_body; |
297
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371 |
501 | 372 time_t lingering_time; |
1179
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373 time_t start_sec; |
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374 ngx_msec_t start_msec; |
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375 |
501 | 376 ngx_uint_t method; |
377 ngx_uint_t http_version; | |
577 | 378 |
501 | 379 ngx_str_t request_line; |
380 ngx_str_t uri; | |
381 ngx_str_t args; | |
382 ngx_str_t exten; | |
383 ngx_str_t unparsed_uri; | |
314
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384 |
501 | 385 ngx_str_t method_name; |
386 ngx_str_t http_protocol; | |
577 | 387 |
509 | 388 ngx_chain_t *out; |
501 | 389 ngx_http_request_t *main; |
509 | 390 ngx_http_request_t *parent; |
391 ngx_http_postponed_request_t *postponed; | |
777
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392 ngx_http_post_subrequest_t *post_subrequest; |
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393 ngx_http_posted_request_t *posted_requests; |
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394 |
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395 ngx_http_virtual_names_t *virtual_names; |
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396 |
501 | 397 ngx_int_t phase_handler; |
398 ngx_http_handler_pt content_handler; | |
543 | 399 ngx_uint_t access_code; |
485 | 400 |
573 | 401 ngx_http_variable_value_t *variables; |
501 | 402 |
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403 #if (NGX_PCRE) |
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404 ngx_uint_t ncaptures; |
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405 int *captures; |
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406 u_char *captures_data; |
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407 #endif |
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408 |
527 | 409 size_t limit_rate; |
410 | |
297
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411 /* used to learn the Apache compatible response length without a header */ |
501 | 412 size_t header_size; |
210
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413 |
663 | 414 off_t request_length; |
475 | 415 |
501 | 416 ngx_uint_t err_status; |
91
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417 |
501 | 418 ngx_http_connection_t *http_connection; |
432
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419 |
509 | 420 ngx_http_log_handler_pt log_handler; |
421 | |
569 | 422 ngx_http_cleanup_t *cleanup; |
423 | |
3052
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424 unsigned subrequests:8; |
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425 unsigned count:8; |
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426 unsigned blocked:8; |
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427 |
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428 unsigned aio:1; |
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429 |
501 | 430 unsigned http_state:4; |
216
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431 |
452 | 432 /* URI with "/." and on Win32 with "//" */ |
501 | 433 unsigned complex_uri:1; |
485 | 434 |
452 | 435 /* URI with "%" */ |
501 | 436 unsigned quoted_uri:1; |
485 | 437 |
438 /* URI with "+" */ | |
501 | 439 unsigned plus_in_uri:1; |
485 | 440 |
3615 | 441 /* URI with " " */ |
442 unsigned space_in_uri:1; | |
443 | |
511 | 444 unsigned invalid_header:1; |
445 | |
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446 unsigned add_uri_to_alias:1; |
509 | 447 unsigned valid_location:1; |
505 | 448 unsigned valid_unparsed_uri:1; |
501 | 449 unsigned uri_changed:1; |
450 unsigned uri_changes:4; | |
485 | 451 |
633 | 452 unsigned request_body_in_single_buf:1; |
453 unsigned request_body_in_file_only:1; | |
454 unsigned request_body_in_persistent_file:1; | |
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455 unsigned request_body_in_clean_file:1; |
633 | 456 unsigned request_body_file_group_access:1; |
637 | 457 unsigned request_body_file_log_level:3; |
633 | 458 |
777
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459 unsigned subrequest_in_memory:1; |
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460 unsigned waited:1; |
597 | 461 |
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462 #if (NGX_HTTP_CACHE) |
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463 unsigned cached:1; |
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464 #endif |
3313 | 465 |
466 #if (NGX_HTTP_GZIP) | |
467 unsigned gzip_tested:1; | |
468 unsigned gzip_ok:1; | |
469 unsigned gzip_vary:1; | |
470 #endif | |
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471 |
501 | 472 unsigned proxy:1; |
473 unsigned bypass_cache:1; | |
474 unsigned no_cache:1; | |
170
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475 |
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476 /* |
2294 | 477 * instead of using the request context data in |
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478 * ngx_http_limit_zone_module and ngx_http_limit_req_module |
2294 | 479 * we use the single bits in the request structure |
984
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480 */ |
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481 unsigned limit_zone_set:1; |
2294 | 482 unsigned limit_req_set:1; |
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483 |
99
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484 #if 0 |
1565 | 485 unsigned cacheable:1; |
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486 #endif |
509 | 487 |
501 | 488 unsigned pipeline:1; |
489 unsigned plain_http:1; | |
490 unsigned chunked:1; | |
491 unsigned header_only:1; | |
492 unsigned keepalive:1; | |
493 unsigned lingering_close:1; | |
537 | 494 unsigned discard_body:1; |
509 | 495 unsigned internal:1; |
679 | 496 unsigned error_page:1; |
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497 unsigned ignore_content_encoding:1; |
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498 unsigned filter_finalize:1; |
629 | 499 unsigned post_action:1; |
500 unsigned request_complete:1; | |
667 | 501 unsigned request_output:1; |
502 unsigned header_sent:1; | |
2067 | 503 unsigned expect_tested:1; |
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504 unsigned root_tested:1; |
509 | 505 unsigned done:1; |
2265 | 506 unsigned logged:1; |
99
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507 |
829
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508 unsigned buffered:4; |
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509 |
513 | 510 unsigned main_filter_need_in_memory:1; |
501 | 511 unsigned filter_need_in_memory:1; |
512 unsigned filter_need_temporary:1; | |
581 | 513 unsigned allow_ranges:1; |
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514 |
427
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515 #if (NGX_STAT_STUB) |
501 | 516 unsigned stat_reading:1; |
517 unsigned stat_writing:1; | |
427
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518 #endif |
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519 |
99
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520 /* used to parse HTTP headers */ |
772
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521 |
501 | 522 ngx_uint_t state; |
3064 | 523 |
524 ngx_uint_t header_hash; | |
525 ngx_uint_t lowcase_index; | |
526 u_char lowcase_header[NGX_HTTP_LC_HEADER_LEN]; | |
527 | |
528 u_char *header_name_start; | |
529 u_char *header_name_end; | |
530 u_char *header_start; | |
531 u_char *header_end; | |
532 | |
533 /* | |
534 * a memory that can be reused after parsing a request line | |
535 * via ngx_http_ephemeral_t | |
536 */ | |
537 | |
501 | 538 u_char *uri_start; |
539 u_char *uri_end; | |
540 u_char *uri_ext; | |
541 u_char *args_start; | |
542 u_char *request_start; | |
543 u_char *request_end; | |
544 u_char *method_end; | |
545 u_char *schema_start; | |
546 u_char *schema_end; | |
547 u_char *host_start; | |
548 u_char *host_end; | |
549 u_char *port_start; | |
550 u_char *port_end; | |
649 | 551 |
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552 unsigned http_minor:16; |
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553 unsigned http_major:16; |
3064 | 554 }; |
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555 |
3064 | 556 |
557 typedef struct { | |
558 ngx_http_posted_request_t terminal_posted_request; | |
3065 | 559 #if (NGX_HAVE_AIO_SENDFILE) |
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560 u_char aio_preload; |
3065 | 561 #endif |
3064 | 562 } ngx_http_ephemeral_t; |
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563 |
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564 |
569 | 565 extern ngx_http_header_t ngx_http_headers_in[]; |
566 extern ngx_http_header_out_t ngx_http_headers_out[]; | |
164
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567 |
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568 |
91
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569 #endif /* _NGX_HTTP_REQUEST_H_INCLUDED_ */ |