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annotate src/http/ngx_http_request.h @ 1271:2b3e6aede7da
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author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 06 Jul 2007 11:28:20 +0000 |
parents | 8ef04207c84f |
children | cb8b30ef3e7e |
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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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10 |
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 | |
1151 | 40 #define NGX_HTTP_TRACE 0x4000 |
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42 #define NGX_HTTP_CONNECTION_CLOSE 1 |
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43 #define NGX_HTTP_CONNECTION_KEEP_ALIVE 2 |
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46 #define NGX_NONE 1 |
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47 |
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49 #define NGX_HTTP_PARSE_HEADER_DONE 1 |
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51 #define NGX_HTTP_CLIENT_ERROR 10 |
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52 #define NGX_HTTP_PARSE_INVALID_METHOD 10 |
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53 #define NGX_HTTP_PARSE_INVALID_REQUEST 11 |
505 | 54 #define NGX_HTTP_PARSE_INVALID_09_METHOD 12 |
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505 | 56 #define NGX_HTTP_PARSE_INVALID_HEADER 13 |
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57 |
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573 | 59 #define NGX_HTTP_ZERO_IN_URI 1 |
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60 #define NGX_HTTP_SUBREQUEST_IN_MEMORY 2 |
573 | 61 |
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63 #define NGX_HTTP_OK 200 |
633 | 64 #define NGX_HTTP_CREATED 201 |
511 | 65 #define NGX_HTTP_NO_CONTENT 204 |
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66 #define NGX_HTTP_PARTIAL_CONTENT 206 |
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67 |
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68 #define NGX_HTTP_SPECIAL_RESPONSE 300 |
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69 #define NGX_HTTP_MOVED_PERMANENTLY 301 |
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70 #define NGX_HTTP_MOVED_TEMPORARILY 302 |
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71 #define NGX_HTTP_NOT_MODIFIED 304 |
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72 |
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73 #define NGX_HTTP_BAD_REQUEST 400 |
503 | 74 #define NGX_HTTP_UNAUTHORIZED 401 |
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75 #define NGX_HTTP_FORBIDDEN 403 |
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76 #define NGX_HTTP_NOT_FOUND 404 |
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77 #define NGX_HTTP_NOT_ALLOWED 405 |
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78 #define NGX_HTTP_REQUEST_TIME_OUT 408 |
637 | 79 #define NGX_HTTP_CONFLICT 409 |
581 | 80 #define NGX_HTTP_LENGTH_REQUIRED 411 |
1057 | 81 #define NGX_HTTP_PRECONDITION_FAILED 412 |
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82 #define NGX_HTTP_REQUEST_ENTITY_TOO_LARGE 413 |
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83 #define NGX_HTTP_REQUEST_URI_TOO_LARGE 414 |
637 | 84 #define NGX_HTTP_UNSUPPORTED_MEDIA_TYPE 415 |
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85 #define NGX_HTTP_RANGE_NOT_SATISFIABLE 416 |
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86 |
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87 |
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88 /* Our own HTTP codes */ |
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89 |
587 | 90 /* The special code to close connection without any response */ |
91 #define NGX_HTTP_CLOSE 444 | |
92 | |
647 | 93 #define NGX_HTTP_OWN_CODES 495 |
94 | |
95 #define NGX_HTTPS_CERT_ERROR 495 | |
96 #define NGX_HTTPS_NO_CERT 496 | |
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97 |
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98 /* |
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99 * We use the special code for the plain HTTP requests that are sent to |
577 | 100 * HTTPS port to distinguish it from 4XX in an error page redirection |
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101 */ |
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102 #define NGX_HTTP_TO_HTTPS 497 |
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103 |
613 | 104 /* 498 is the canceled code for the requests with invalid host name */ |
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105 |
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106 /* |
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107 * HTTP does not define the code for the case when a client closed |
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108 * the connection while we are processing its request so we introduce |
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109 * own code to log such situation when a client has closed the connection |
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110 * before we even try to send the HTTP header to it |
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111 */ |
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112 #define NGX_HTTP_CLIENT_CLOSED_REQUEST 499 |
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113 |
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114 |
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115 #define NGX_HTTP_INTERNAL_SERVER_ERROR 500 |
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116 #define NGX_HTTP_NOT_IMPLEMENTED 501 |
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117 #define NGX_HTTP_BAD_GATEWAY 502 |
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118 #define NGX_HTTP_SERVICE_UNAVAILABLE 503 |
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119 #define NGX_HTTP_GATEWAY_TIME_OUT 504 |
637 | 120 #define NGX_HTTP_INSUFFICIENT_STORAGE 507 |
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121 |
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122 |
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123 #define NGX_HTTP_LOWLEVEL_BUFFERED 0xf0 |
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124 #define NGX_HTTP_WRITE_BUFFERED 0x10 |
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125 #define NGX_HTTP_GZIP_BUFFERED 0x20 |
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126 #define NGX_HTTP_SSI_BUFFERED 0x01 |
1172 | 127 #define NGX_HTTP_SUB_BUFFERED 0x02 |
128 #define NGX_HTTP_COPY_BUFFERED 0x04 | |
597 | 129 |
130 | |
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131 typedef enum { |
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132 NGX_HTTP_INITING_REQUEST_STATE = 0, |
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133 NGX_HTTP_READING_REQUEST_STATE, |
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134 NGX_HTTP_PROCESS_REQUEST_STATE, |
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135 |
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136 NGX_HTTP_CONNECT_UPSTREAM_STATE, |
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137 NGX_HTTP_WRITING_UPSTREAM_STATE, |
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138 NGX_HTTP_READING_UPSTREAM_STATE, |
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139 |
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140 NGX_HTTP_WRITING_REQUEST_STATE, |
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141 NGX_HTTP_LINGERING_CLOSE_STATE, |
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142 NGX_HTTP_KEEPALIVE_STATE |
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143 } ngx_http_state_e; |
91
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144 |
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145 |
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146 typedef struct { |
501 | 147 ngx_str_t name; |
148 ngx_uint_t offset; | |
509 | 149 ngx_http_header_handler_pt handler; |
91
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150 } ngx_http_header_t; |
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151 |
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152 |
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153 typedef struct { |
509 | 154 ngx_str_t name; |
155 ngx_uint_t offset; | |
569 | 156 } ngx_http_header_out_t; |
509 | 157 |
158 | |
159 typedef struct { | |
501 | 160 ngx_list_t headers; |
164
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162
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161 |
501 | 162 ngx_table_elt_t *host; |
163 ngx_table_elt_t *connection; | |
164 ngx_table_elt_t *if_modified_since; | |
165 ngx_table_elt_t *user_agent; | |
166 ngx_table_elt_t *referer; | |
167 ngx_table_elt_t *content_length; | |
168 ngx_table_elt_t *content_type; | |
155
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169 |
501 | 170 ngx_table_elt_t *range; |
287
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171 |
581 | 172 ngx_table_elt_t *transfer_encoding; |
173 | |
287
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174 #if (NGX_HTTP_GZIP) |
501 | 175 ngx_table_elt_t *accept_encoding; |
176 ngx_table_elt_t *via; | |
287
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177 #endif |
99
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178 |
501 | 179 ngx_table_elt_t *authorization; |
172
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170
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180 |
501 | 181 ngx_table_elt_t *keep_alive; |
91
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182 |
573 | 183 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP) |
501 | 184 ngx_table_elt_t *x_forwarded_for; |
287
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185 #endif |
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186 |
573 | 187 #if (NGX_HTTP_REALIP) |
188 ngx_table_elt_t *x_real_ip; | |
189 #endif | |
190 | |
489 | 191 #if (NGX_HTTP_HEADERS) |
501 | 192 ngx_table_elt_t *accept; |
193 ngx_table_elt_t *accept_language; | |
489 | 194 #endif |
195 | |
637 | 196 #if (NGX_HTTP_DAV) |
197 ngx_table_elt_t *depth; | |
198 ngx_table_elt_t *destination; | |
1059 | 199 ngx_table_elt_t *overwrite; |
681 | 200 ngx_table_elt_t *date; |
637 | 201 #endif |
202 | |
503 | 203 ngx_str_t user; |
204 ngx_str_t passwd; | |
205 | |
501 | 206 ngx_array_t cookies; |
207 | |
208 size_t host_name_len; | |
663 | 209 off_t content_length_n; |
501 | 210 time_t keep_alive_n; |
408
d6e2b445c1b8
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211 |
501 | 212 unsigned connection_type:2; |
213 unsigned msie:1; | |
214 unsigned msie4:1; | |
215 unsigned opera:1; | |
216 unsigned gecko:1; | |
217 unsigned konqueror:1; | |
91
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218 } ngx_http_headers_in_t; |
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219 |
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220 |
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221 typedef struct { |
501 | 222 ngx_list_t headers; |
164
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223 |
501 | 224 ngx_uint_t status; |
225 ngx_str_t status_line; | |
91
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226 |
501 | 227 ngx_table_elt_t *server; |
228 ngx_table_elt_t *date; | |
229 ngx_table_elt_t *content_length; | |
230 ngx_table_elt_t *content_encoding; | |
231 ngx_table_elt_t *location; | |
232 ngx_table_elt_t *last_modified; | |
233 ngx_table_elt_t *content_range; | |
234 ngx_table_elt_t *accept_ranges; | |
503 | 235 ngx_table_elt_t *www_authenticate; |
501 | 236 ngx_table_elt_t *expires; |
237 ngx_table_elt_t *etag; | |
99
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238 |
657 | 239 ngx_str_t *override_charset; |
240 | |
241 size_t content_type_len; | |
509 | 242 ngx_str_t content_type; |
501 | 243 ngx_str_t charset; |
657 | 244 |
509 | 245 ngx_array_t cache_control; |
246 | |
501 | 247 off_t content_length_n; |
248 time_t date_time; | |
249 time_t last_modified_time; | |
91
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250 } ngx_http_headers_out_t; |
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251 |
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252 |
479 | 253 typedef void (*ngx_http_client_body_handler_pt)(ngx_http_request_t *r); |
254 | |
297
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255 typedef struct { |
479 | 256 ngx_temp_file_t *temp_file; |
257 ngx_chain_t *bufs; | |
258 ngx_buf_t *buf; | |
663 | 259 off_t rest; |
633 | 260 ngx_chain_t *to_write; |
479 | 261 ngx_http_client_body_handler_pt post_handler; |
297
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262 } ngx_http_request_body_t; |
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263 |
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264 |
432
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parents:
429
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265 typedef struct { |
501 | 266 ngx_http_request_t *request; |
433
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432
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267 |
501 | 268 ngx_buf_t **busy; |
269 ngx_int_t nbusy; | |
433
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parents:
432
diff
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270 |
501 | 271 ngx_buf_t **free; |
272 ngx_int_t nfree; | |
433
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parents:
432
diff
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273 |
501 | 274 ngx_uint_t pipeline; /* unsigned pipeline:1; */ |
432
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275 } ngx_http_connection_t; |
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276 |
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277 |
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the "www.example.*" wildcard hash support
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278 typedef ngx_hash_combined_t ngx_http_virtual_names_t; |
593 | 279 |
280 | |
569 | 281 typedef void (*ngx_http_cleanup_pt)(void *data); |
282 | |
283 typedef struct ngx_http_cleanup_s ngx_http_cleanup_t; | |
284 | |
285 struct ngx_http_cleanup_s { | |
593 | 286 ngx_http_cleanup_pt handler; |
287 void *data; | |
288 ngx_http_cleanup_t *next; | |
569 | 289 }; |
290 | |
291 | |
777
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292 typedef ngx_int_t (*ngx_http_post_subrequest_pt)(ngx_http_request_t *r, |
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293 void *data, ngx_int_t rc); |
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294 |
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295 typedef struct { |
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296 ngx_http_post_subrequest_pt handler; |
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297 void *data; |
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298 } ngx_http_post_subrequest_t; |
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299 |
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300 |
509 | 301 typedef struct ngx_http_postponed_request_s ngx_http_postponed_request_t; |
302 | |
303 struct ngx_http_postponed_request_s { | |
535 | 304 ngx_http_request_t *request; |
305 ngx_chain_t *out; | |
306 ngx_http_postponed_request_t *next; | |
509 | 307 }; |
308 | |
309 | |
356
2e3cbc1bbe3c
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346
diff
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310 typedef ngx_int_t (*ngx_http_handler_pt)(ngx_http_request_t *r); |
509 | 311 typedef void (*ngx_http_event_handler_pt)(ngx_http_request_t *r); |
312 | |
143
5526213be452
nginx-0.0.1-2003-10-10-19:10:50 import
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parents:
141
diff
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|
313 |
91
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314 struct ngx_http_request_s { |
501 | 315 uint32_t signature; /* "HTTP" */ |
367
ceec87d1c2b3
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parents:
362
diff
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|
316 |
501 | 317 ngx_connection_t *connection; |
91
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318 |
501 | 319 void **ctx; |
320 void **main_conf; | |
321 void **srv_conf; | |
322 void **loc_conf; | |
91
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323 |
509 | 324 ngx_http_event_handler_pt read_event_handler; |
325 ngx_http_event_handler_pt write_event_handler; | |
326 | |
501 | 327 ngx_http_cache_t *cache; |
197
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parents:
190
diff
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328 |
501 | 329 ngx_http_upstream_t *upstream; |
1168
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330 ngx_array_t *upstream_states; |
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331 /* of ngx_http_upstream_state_t */ |
479 | 332 |
501 | 333 ngx_pool_t *pool; |
334 ngx_buf_t *header_in; | |
91
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335 |
501 | 336 ngx_http_headers_in_t headers_in; |
337 ngx_http_headers_out_t headers_out; | |
91
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338 |
501 | 339 ngx_http_request_body_t *request_body; |
297
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296
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340 |
501 | 341 time_t lingering_time; |
1179
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$request_time has millisecond precision
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diff
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342 time_t start_sec; |
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343 ngx_msec_t start_msec; |
91
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344 |
501 | 345 ngx_uint_t method; |
346 ngx_uint_t http_version; | |
577 | 347 |
501 | 348 ngx_str_t request_line; |
349 ngx_str_t uri; | |
350 ngx_str_t args; | |
351 ngx_str_t exten; | |
352 ngx_str_t unparsed_uri; | |
314
d71c87d11b16
nginx-0.0.3-2004-04-14-09:57:36 import
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parents:
313
diff
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|
353 |
501 | 354 ngx_str_t method_name; |
355 ngx_str_t http_protocol; | |
577 | 356 |
509 | 357 ngx_chain_t *out; |
501 | 358 ngx_http_request_t *main; |
509 | 359 ngx_http_request_t *parent; |
360 ngx_http_postponed_request_t *postponed; | |
777
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diff
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|
361 ngx_http_post_subrequest_t *post_subrequest; |
91
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362 |
501 | 363 uint32_t in_addr; |
364 ngx_uint_t port; | |
365 ngx_str_t *port_text; /* ":80" */ | |
366 ngx_str_t server_name; | |
593 | 367 ngx_http_virtual_names_t *virtual_names; |
99
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nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
96
diff
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|
368 |
501 | 369 ngx_int_t phase_handler; |
370 ngx_http_handler_pt content_handler; | |
543 | 371 ngx_uint_t access_code; |
485 | 372 |
573 | 373 ngx_http_variable_value_t *variables; |
501 | 374 |
527 | 375 size_t limit_rate; |
376 | |
297
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296
diff
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|
377 /* used to learn the Apache compatible response length without a header */ |
501 | 378 size_t header_size; |
210
00cafae0bdf1
nginx-0.0.1-2003-12-14-23:10:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
201
diff
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|
379 |
663 | 380 off_t request_length; |
475 | 381 |
501 | 382 ngx_uint_t err_status; |
91
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383 |
501 | 384 ngx_http_connection_t *http_connection; |
432
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parents:
429
diff
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|
385 |
509 | 386 ngx_http_log_handler_pt log_handler; |
387 | |
569 | 388 ngx_http_cleanup_t *cleanup; |
389 | |
501 | 390 unsigned http_state:4; |
216
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
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391 |
452 | 392 /* URI with "/." and on Win32 with "//" */ |
501 | 393 unsigned complex_uri:1; |
485 | 394 |
452 | 395 /* URI with "%" */ |
501 | 396 unsigned quoted_uri:1; |
485 | 397 |
398 /* URI with "+" */ | |
501 | 399 unsigned plus_in_uri:1; |
485 | 400 |
489 | 401 /* URI with "\0" or "%00" */ |
501 | 402 unsigned zero_in_uri:1; |
489 | 403 |
511 | 404 unsigned invalid_header:1; |
405 | |
509 | 406 unsigned valid_location:1; |
505 | 407 unsigned valid_unparsed_uri:1; |
501 | 408 unsigned uri_changed:1; |
409 unsigned uri_changes:4; | |
485 | 410 |
633 | 411 unsigned request_body_in_single_buf:1; |
412 unsigned request_body_in_file_only:1; | |
413 unsigned request_body_in_persistent_file:1; | |
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414 unsigned request_body_in_clean_file:1; |
633 | 415 unsigned request_body_file_group_access:1; |
637 | 416 unsigned request_body_file_log_level:3; |
633 | 417 |
597 | 418 unsigned fast_subrequest:1; |
777
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419 unsigned subrequest_in_memory:1; |
597 | 420 |
501 | 421 unsigned header_timeout_set:1; |
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422 |
501 | 423 unsigned proxy:1; |
424 unsigned bypass_cache:1; | |
425 unsigned no_cache:1; | |
170
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426 |
573 | 427 #if (NGX_HTTP_REALIP) |
428 | |
429 /* | |
430 * instead of using the request context data in ngx_http_realip_module | |
431 * we use the single bit in the request structure | |
432 */ | |
433 unsigned realip_set:1; | |
434 | |
435 #endif | |
436 | |
984
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437 /* |
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438 * instead of using the request context data in ngx_http_limit_zone_module |
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439 * we use the single bit in the request structure |
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440 */ |
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441 unsigned limit_zone_set:1; |
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442 |
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443 #if 0 |
501 | 444 unsigned cachable:1; |
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445 #endif |
509 | 446 |
501 | 447 unsigned pipeline:1; |
448 unsigned plain_http:1; | |
449 unsigned chunked:1; | |
450 unsigned header_only:1; | |
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451 unsigned zero_body:1; |
501 | 452 unsigned keepalive:1; |
453 unsigned lingering_close:1; | |
537 | 454 unsigned discard_body:1; |
509 | 455 unsigned internal:1; |
679 | 456 unsigned error_page:1; |
629 | 457 unsigned post_action:1; |
458 unsigned request_complete:1; | |
667 | 459 unsigned request_output:1; |
460 unsigned header_sent:1; | |
509 | 461 unsigned done:1; |
523 | 462 unsigned utf8:1; |
99
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463 |
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464 unsigned buffered:4; |
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465 |
513 | 466 unsigned main_filter_need_in_memory:1; |
501 | 467 unsigned filter_need_in_memory:1; |
468 unsigned filter_need_temporary:1; | |
581 | 469 unsigned allow_ranges:1; |
91
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470 |
427
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471 #if (NGX_STAT_STUB) |
501 | 472 unsigned stat_reading:1; |
473 unsigned stat_writing:1; | |
427
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474 #endif |
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475 |
657 | 476 unsigned subrequests:8; |
477 | |
99
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478 /* used to parse HTTP headers */ |
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479 |
501 | 480 ngx_uint_t state; |
481 u_char *uri_start; | |
482 u_char *uri_end; | |
483 u_char *uri_ext; | |
484 u_char *args_start; | |
485 u_char *request_start; | |
486 u_char *request_end; | |
487 u_char *method_end; | |
488 u_char *schema_start; | |
489 u_char *schema_end; | |
490 u_char *host_start; | |
491 u_char *host_end; | |
492 u_char *port_start; | |
493 u_char *port_end; | |
494 u_char *header_name_start; | |
495 u_char *header_name_end; | |
496 u_char *header_start; | |
497 u_char *header_end; | |
649 | 498 |
772
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499 unsigned http_minor:16; |
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500 unsigned http_major:16; |
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501 |
507 | 502 ngx_uint_t header_hash; |
649 | 503 ngx_uint_t lowcase_index; |
504 u_char lowcase_header[NGX_HTTP_LC_HEADER_LEN]; | |
91
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505 }; |
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506 |
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507 |
569 | 508 extern ngx_http_header_t ngx_http_headers_in[]; |
509 extern ngx_http_header_out_t ngx_http_headers_out[]; | |
164
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510 |
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511 |
91
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512 #endif /* _NGX_HTTP_REQUEST_H_INCLUDED_ */ |