Mercurial > hg > nginx-quic
annotate src/http/ngx_http_request.h @ 3892:12d8d2f30205
use MurmurHash2 for split_clients, because
its distribution is much better than CRC32's one
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 15 Apr 2011 10:59:57 +0000 |
parents | de59ad6bf557 |
children | 6b608bf9f3ae |
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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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 | |
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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47 #define NGX_NONE 1 |
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48 |
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49 |
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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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56 |
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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65 |
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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 | |
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98 #define NGX_HTTP_NGINX_CODES 494 |
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99 |
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100 #define NGX_HTTP_REQUEST_HEADER_TOO_LARGE 494 |
647 | 101 |
102 #define NGX_HTTPS_CERT_ERROR 495 | |
103 #define NGX_HTTPS_NO_CERT 496 | |
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104 |
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105 /* |
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106 * We use the special code for the plain HTTP requests that are sent to |
577 | 107 * HTTPS port to distinguish it from 4XX in an error page redirection |
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108 */ |
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109 #define NGX_HTTP_TO_HTTPS 497 |
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613 | 111 /* 498 is the canceled code for the requests with invalid host name */ |
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112 |
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113 /* |
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114 * HTTP does not define the code for the case when a client closed |
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115 * the connection while we are processing its request so we introduce |
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116 * own code to log such situation when a client has closed the connection |
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117 * before we even try to send the HTTP header to it |
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118 */ |
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119 #define NGX_HTTP_CLIENT_CLOSED_REQUEST 499 |
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120 |
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121 |
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122 #define NGX_HTTP_INTERNAL_SERVER_ERROR 500 |
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123 #define NGX_HTTP_NOT_IMPLEMENTED 501 |
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124 #define NGX_HTTP_BAD_GATEWAY 502 |
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125 #define NGX_HTTP_SERVICE_UNAVAILABLE 503 |
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126 #define NGX_HTTP_GATEWAY_TIME_OUT 504 |
637 | 127 #define NGX_HTTP_INSUFFICIENT_STORAGE 507 |
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128 |
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129 |
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130 #define NGX_HTTP_LOWLEVEL_BUFFERED 0xf0 |
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131 #define NGX_HTTP_WRITE_BUFFERED 0x10 |
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132 #define NGX_HTTP_GZIP_BUFFERED 0x20 |
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133 #define NGX_HTTP_SSI_BUFFERED 0x01 |
1172 | 134 #define NGX_HTTP_SUB_BUFFERED 0x02 |
135 #define NGX_HTTP_COPY_BUFFERED 0x04 | |
597 | 136 |
137 | |
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138 typedef enum { |
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139 NGX_HTTP_INITING_REQUEST_STATE = 0, |
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140 NGX_HTTP_READING_REQUEST_STATE, |
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141 NGX_HTTP_PROCESS_REQUEST_STATE, |
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142 |
216
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parents:
210
diff
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143 NGX_HTTP_CONNECT_UPSTREAM_STATE, |
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
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parents:
210
diff
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144 NGX_HTTP_WRITING_UPSTREAM_STATE, |
f1d0e5f09c1e
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parents:
210
diff
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|
145 NGX_HTTP_READING_UPSTREAM_STATE, |
f1d0e5f09c1e
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parents:
210
diff
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146 |
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210
diff
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147 NGX_HTTP_WRITING_REQUEST_STATE, |
f1d0e5f09c1e
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210
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148 NGX_HTTP_LINGERING_CLOSE_STATE, |
f1d0e5f09c1e
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210
diff
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149 NGX_HTTP_KEEPALIVE_STATE |
f1d0e5f09c1e
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210
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150 } ngx_http_state_e; |
91
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151 |
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152 |
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153 typedef struct { |
501 | 154 ngx_str_t name; |
155 ngx_uint_t offset; | |
509 | 156 ngx_http_header_handler_pt handler; |
91
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157 } ngx_http_header_t; |
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158 |
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159 |
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160 typedef struct { |
509 | 161 ngx_str_t name; |
162 ngx_uint_t offset; | |
569 | 163 } ngx_http_header_out_t; |
509 | 164 |
165 | |
166 typedef struct { | |
501 | 167 ngx_list_t headers; |
164
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162
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168 |
501 | 169 ngx_table_elt_t *host; |
170 ngx_table_elt_t *connection; | |
171 ngx_table_elt_t *if_modified_since; | |
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172 ngx_table_elt_t *if_unmodified_since; |
501 | 173 ngx_table_elt_t *user_agent; |
174 ngx_table_elt_t *referer; | |
175 ngx_table_elt_t *content_length; | |
176 ngx_table_elt_t *content_type; | |
155
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154
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177 |
501 | 178 ngx_table_elt_t *range; |
1630 | 179 ngx_table_elt_t *if_range; |
287
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232
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180 |
581 | 181 ngx_table_elt_t *transfer_encoding; |
2067 | 182 ngx_table_elt_t *expect; |
581 | 183 |
287
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232
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184 #if (NGX_HTTP_GZIP) |
501 | 185 ngx_table_elt_t *accept_encoding; |
186 ngx_table_elt_t *via; | |
287
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187 #endif |
99
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96
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188 |
501 | 189 ngx_table_elt_t *authorization; |
172
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170
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190 |
501 | 191 ngx_table_elt_t *keep_alive; |
91
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192 |
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193 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP || NGX_HTTP_GEO) |
501 | 194 ngx_table_elt_t *x_forwarded_for; |
287
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195 #endif |
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196 |
573 | 197 #if (NGX_HTTP_REALIP) |
198 ngx_table_elt_t *x_real_ip; | |
199 #endif | |
200 | |
489 | 201 #if (NGX_HTTP_HEADERS) |
501 | 202 ngx_table_elt_t *accept; |
203 ngx_table_elt_t *accept_language; | |
489 | 204 #endif |
205 | |
637 | 206 #if (NGX_HTTP_DAV) |
207 ngx_table_elt_t *depth; | |
208 ngx_table_elt_t *destination; | |
1059 | 209 ngx_table_elt_t *overwrite; |
681 | 210 ngx_table_elt_t *date; |
637 | 211 #endif |
212 | |
503 | 213 ngx_str_t user; |
214 ngx_str_t passwd; | |
215 | |
501 | 216 ngx_array_t cookies; |
217 | |
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218 ngx_str_t server; |
663 | 219 off_t content_length_n; |
501 | 220 time_t keep_alive_n; |
408
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396
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221 |
501 | 222 unsigned connection_type:2; |
223 unsigned msie:1; | |
224 unsigned msie4:1; | |
2205 | 225 unsigned msie6:1; |
501 | 226 unsigned opera:1; |
227 unsigned gecko:1; | |
3315 | 228 unsigned chrome:1; |
3419
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229 unsigned safari:1; |
501 | 230 unsigned konqueror:1; |
91
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231 } ngx_http_headers_in_t; |
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232 |
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233 |
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234 typedef struct { |
501 | 235 ngx_list_t headers; |
164
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236 |
501 | 237 ngx_uint_t status; |
238 ngx_str_t status_line; | |
91
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239 |
501 | 240 ngx_table_elt_t *server; |
241 ngx_table_elt_t *date; | |
242 ngx_table_elt_t *content_length; | |
243 ngx_table_elt_t *content_encoding; | |
244 ngx_table_elt_t *location; | |
1654 | 245 ngx_table_elt_t *refresh; |
501 | 246 ngx_table_elt_t *last_modified; |
247 ngx_table_elt_t *content_range; | |
248 ngx_table_elt_t *accept_ranges; | |
503 | 249 ngx_table_elt_t *www_authenticate; |
501 | 250 ngx_table_elt_t *expires; |
251 ngx_table_elt_t *etag; | |
99
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252 |
657 | 253 ngx_str_t *override_charset; |
254 | |
255 size_t content_type_len; | |
509 | 256 ngx_str_t content_type; |
501 | 257 ngx_str_t charset; |
2138 | 258 u_char *content_type_lowcase; |
259 ngx_uint_t content_type_hash; | |
657 | 260 |
509 | 261 ngx_array_t cache_control; |
262 | |
501 | 263 off_t content_length_n; |
264 time_t date_time; | |
265 time_t last_modified_time; | |
91
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266 } ngx_http_headers_out_t; |
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267 |
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268 |
479 | 269 typedef void (*ngx_http_client_body_handler_pt)(ngx_http_request_t *r); |
270 | |
297
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296
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271 typedef struct { |
479 | 272 ngx_temp_file_t *temp_file; |
273 ngx_chain_t *bufs; | |
274 ngx_buf_t *buf; | |
663 | 275 off_t rest; |
633 | 276 ngx_chain_t *to_write; |
479 | 277 ngx_http_client_body_handler_pt post_handler; |
297
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278 } ngx_http_request_body_t; |
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279 |
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280 |
432
11362a3e3911
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429
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281 typedef struct { |
501 | 282 ngx_http_request_t *request; |
433
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432
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283 |
501 | 284 ngx_buf_t **busy; |
285 ngx_int_t nbusy; | |
433
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432
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286 |
501 | 287 ngx_buf_t **free; |
288 ngx_int_t nfree; | |
433
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289 |
501 | 290 ngx_uint_t pipeline; /* unsigned pipeline:1; */ |
432
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291 } ngx_http_connection_t; |
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292 |
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293 |
1387 | 294 typedef struct ngx_http_server_name_s ngx_http_server_name_t; |
295 | |
296 | |
297 typedef struct { | |
298 ngx_hash_combined_t names; | |
299 | |
300 ngx_uint_t nregex; | |
301 ngx_http_server_name_t *regex; | |
302 } ngx_http_virtual_names_t; | |
593 | 303 |
304 | |
569 | 305 typedef void (*ngx_http_cleanup_pt)(void *data); |
306 | |
307 typedef struct ngx_http_cleanup_s ngx_http_cleanup_t; | |
308 | |
309 struct ngx_http_cleanup_s { | |
593 | 310 ngx_http_cleanup_pt handler; |
311 void *data; | |
312 ngx_http_cleanup_t *next; | |
569 | 313 }; |
314 | |
315 | |
777
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316 typedef ngx_int_t (*ngx_http_post_subrequest_pt)(ngx_http_request_t *r, |
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317 void *data, ngx_int_t rc); |
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318 |
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319 typedef struct { |
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320 ngx_http_post_subrequest_pt handler; |
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321 void *data; |
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322 } ngx_http_post_subrequest_t; |
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323 |
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324 |
509 | 325 typedef struct ngx_http_postponed_request_s ngx_http_postponed_request_t; |
326 | |
327 struct ngx_http_postponed_request_s { | |
535 | 328 ngx_http_request_t *request; |
329 ngx_chain_t *out; | |
330 ngx_http_postponed_request_t *next; | |
509 | 331 }; |
332 | |
333 | |
2377
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334 typedef struct ngx_http_posted_request_s ngx_http_posted_request_t; |
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335 |
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336 struct ngx_http_posted_request_s { |
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337 ngx_http_request_t *request; |
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338 ngx_http_posted_request_t *next; |
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339 }; |
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340 |
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341 |
356
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346
diff
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|
342 typedef ngx_int_t (*ngx_http_handler_pt)(ngx_http_request_t *r); |
509 | 343 typedef void (*ngx_http_event_handler_pt)(ngx_http_request_t *r); |
344 | |
143
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345 |
91
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346 struct ngx_http_request_s { |
501 | 347 uint32_t signature; /* "HTTP" */ |
367
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348 |
501 | 349 ngx_connection_t *connection; |
91
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350 |
501 | 351 void **ctx; |
352 void **main_conf; | |
353 void **srv_conf; | |
354 void **loc_conf; | |
91
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355 |
509 | 356 ngx_http_event_handler_pt read_event_handler; |
357 ngx_http_event_handler_pt write_event_handler; | |
358 | |
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359 #if (NGX_HTTP_CACHE) |
501 | 360 ngx_http_cache_t *cache; |
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361 #endif |
197
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190
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362 |
501 | 363 ngx_http_upstream_t *upstream; |
1168
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364 ngx_array_t *upstream_states; |
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365 /* of ngx_http_upstream_state_t */ |
479 | 366 |
501 | 367 ngx_pool_t *pool; |
368 ngx_buf_t *header_in; | |
91
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369 |
501 | 370 ngx_http_headers_in_t headers_in; |
371 ngx_http_headers_out_t headers_out; | |
91
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nginx-0.0.1-2003-05-19-20:39:14 import
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372 |
501 | 373 ngx_http_request_body_t *request_body; |
297
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374 |
501 | 375 time_t lingering_time; |
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376 time_t start_sec; |
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377 ngx_msec_t start_msec; |
91
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378 |
501 | 379 ngx_uint_t method; |
380 ngx_uint_t http_version; | |
577 | 381 |
501 | 382 ngx_str_t request_line; |
383 ngx_str_t uri; | |
384 ngx_str_t args; | |
385 ngx_str_t exten; | |
386 ngx_str_t unparsed_uri; | |
314
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387 |
501 | 388 ngx_str_t method_name; |
389 ngx_str_t http_protocol; | |
577 | 390 |
509 | 391 ngx_chain_t *out; |
501 | 392 ngx_http_request_t *main; |
509 | 393 ngx_http_request_t *parent; |
394 ngx_http_postponed_request_t *postponed; | |
777
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395 ngx_http_post_subrequest_t *post_subrequest; |
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396 ngx_http_posted_request_t *posted_requests; |
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397 |
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398 ngx_http_virtual_names_t *virtual_names; |
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399 |
501 | 400 ngx_int_t phase_handler; |
401 ngx_http_handler_pt content_handler; | |
543 | 402 ngx_uint_t access_code; |
485 | 403 |
573 | 404 ngx_http_variable_value_t *variables; |
501 | 405 |
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406 #if (NGX_PCRE) |
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407 ngx_uint_t ncaptures; |
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408 int *captures; |
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409 u_char *captures_data; |
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410 #endif |
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411 |
527 | 412 size_t limit_rate; |
413 | |
297
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414 /* used to learn the Apache compatible response length without a header */ |
501 | 415 size_t header_size; |
210
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416 |
663 | 417 off_t request_length; |
475 | 418 |
501 | 419 ngx_uint_t err_status; |
91
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420 |
501 | 421 ngx_http_connection_t *http_connection; |
432
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429
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422 |
509 | 423 ngx_http_log_handler_pt log_handler; |
424 | |
569 | 425 ngx_http_cleanup_t *cleanup; |
426 | |
3052
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FreeBSD and Linux AIO support
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427 unsigned subrequests:8; |
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428 unsigned count:8; |
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FreeBSD and Linux AIO support
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429 unsigned blocked:8; |
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430 |
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431 unsigned aio:1; |
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432 |
501 | 433 unsigned http_state:4; |
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434 |
452 | 435 /* URI with "/." and on Win32 with "//" */ |
501 | 436 unsigned complex_uri:1; |
485 | 437 |
452 | 438 /* URI with "%" */ |
501 | 439 unsigned quoted_uri:1; |
485 | 440 |
441 /* URI with "+" */ | |
501 | 442 unsigned plus_in_uri:1; |
485 | 443 |
3615 | 444 /* URI with " " */ |
445 unsigned space_in_uri:1; | |
446 | |
511 | 447 unsigned invalid_header:1; |
448 | |
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449 unsigned add_uri_to_alias:1; |
509 | 450 unsigned valid_location:1; |
505 | 451 unsigned valid_unparsed_uri:1; |
501 | 452 unsigned uri_changed:1; |
453 unsigned uri_changes:4; | |
485 | 454 |
633 | 455 unsigned request_body_in_single_buf:1; |
456 unsigned request_body_in_file_only:1; | |
457 unsigned request_body_in_persistent_file:1; | |
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458 unsigned request_body_in_clean_file:1; |
633 | 459 unsigned request_body_file_group_access:1; |
637 | 460 unsigned request_body_file_log_level:3; |
633 | 461 |
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462 unsigned subrequest_in_memory:1; |
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463 unsigned waited:1; |
597 | 464 |
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465 #if (NGX_HTTP_CACHE) |
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466 unsigned cached:1; |
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467 #endif |
3313 | 468 |
469 #if (NGX_HTTP_GZIP) | |
470 unsigned gzip_tested:1; | |
471 unsigned gzip_ok:1; | |
472 unsigned gzip_vary:1; | |
473 #endif | |
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474 |
501 | 475 unsigned proxy:1; |
476 unsigned bypass_cache:1; | |
477 unsigned no_cache:1; | |
170
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478 |
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479 /* |
2294 | 480 * instead of using the request context data in |
2301
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481 * ngx_http_limit_zone_module and ngx_http_limit_req_module |
2294 | 482 * we use the single bits in the request structure |
984
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483 */ |
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484 unsigned limit_zone_set:1; |
2294 | 485 unsigned limit_req_set:1; |
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486 |
99
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487 #if 0 |
1565 | 488 unsigned cacheable:1; |
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489 #endif |
509 | 490 |
501 | 491 unsigned pipeline:1; |
492 unsigned plain_http:1; | |
493 unsigned chunked:1; | |
494 unsigned header_only:1; | |
495 unsigned keepalive:1; | |
496 unsigned lingering_close:1; | |
537 | 497 unsigned discard_body:1; |
509 | 498 unsigned internal:1; |
679 | 499 unsigned error_page:1; |
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500 unsigned ignore_content_encoding:1; |
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501 unsigned filter_finalize:1; |
629 | 502 unsigned post_action:1; |
503 unsigned request_complete:1; | |
667 | 504 unsigned request_output:1; |
505 unsigned header_sent:1; | |
2067 | 506 unsigned expect_tested:1; |
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507 unsigned root_tested:1; |
509 | 508 unsigned done:1; |
2265 | 509 unsigned logged:1; |
99
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510 |
829
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511 unsigned buffered:4; |
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512 |
513 | 513 unsigned main_filter_need_in_memory:1; |
501 | 514 unsigned filter_need_in_memory:1; |
515 unsigned filter_need_temporary:1; | |
581 | 516 unsigned allow_ranges:1; |
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517 |
427
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518 #if (NGX_STAT_STUB) |
501 | 519 unsigned stat_reading:1; |
520 unsigned stat_writing:1; | |
427
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521 #endif |
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522 |
99
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523 /* used to parse HTTP headers */ |
772
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524 |
501 | 525 ngx_uint_t state; |
3064 | 526 |
527 ngx_uint_t header_hash; | |
528 ngx_uint_t lowcase_index; | |
529 u_char lowcase_header[NGX_HTTP_LC_HEADER_LEN]; | |
530 | |
531 u_char *header_name_start; | |
532 u_char *header_name_end; | |
533 u_char *header_start; | |
534 u_char *header_end; | |
535 | |
536 /* | |
537 * a memory that can be reused after parsing a request line | |
538 * via ngx_http_ephemeral_t | |
539 */ | |
540 | |
501 | 541 u_char *uri_start; |
542 u_char *uri_end; | |
543 u_char *uri_ext; | |
544 u_char *args_start; | |
545 u_char *request_start; | |
546 u_char *request_end; | |
547 u_char *method_end; | |
548 u_char *schema_start; | |
549 u_char *schema_end; | |
550 u_char *host_start; | |
551 u_char *host_end; | |
552 u_char *port_start; | |
553 u_char *port_end; | |
649 | 554 |
772
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compact r->http_minor and r->http_major
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555 unsigned http_minor:16; |
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556 unsigned http_major:16; |
3064 | 557 }; |
772
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558 |
3064 | 559 |
560 typedef struct { | |
561 ngx_http_posted_request_t terminal_posted_request; | |
3065 | 562 #if (NGX_HAVE_AIO_SENDFILE) |
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563 u_char aio_preload; |
3065 | 564 #endif |
3064 | 565 } ngx_http_ephemeral_t; |
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566 |
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567 |
569 | 568 extern ngx_http_header_t ngx_http_headers_in[]; |
569 extern ngx_http_header_out_t ngx_http_headers_out[]; | |
164
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162
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570 |
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571 |
91
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572 #endif /* _NGX_HTTP_REQUEST_H_INCLUDED_ */ |