Mercurial > hg > nginx-quic
annotate src/http/ngx_http_special_response.c @ 3773:a08e8b3832ae
gzip_disable degradation
author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 04 Oct 2010 15:03:00 +0000 |
parents | 4a643a230686 |
children | 173a45374a97 |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
441
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4 */ |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_http.h> |
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10 #include <nginx.h> |
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13 static ngx_int_t ngx_http_send_error_page(ngx_http_request_t *r, |
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14 ngx_http_err_page_t *err_page); |
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15 static ngx_int_t ngx_http_send_special_response(ngx_http_request_t *r, |
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16 ngx_http_core_loc_conf_t *clcf, ngx_uint_t err); |
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17 static ngx_int_t ngx_http_send_refresh(ngx_http_request_t *r); |
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18 |
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19 |
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20 static u_char ngx_http_error_full_tail[] = |
1592 | 21 "<hr><center>" NGINX_VER "</center>" CRLF |
22 "</body>" CRLF | |
23 "</html>" CRLF | |
24 ; | |
25 | |
26 | |
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27 static u_char ngx_http_error_tail[] = |
1592 | 28 "<hr><center>nginx</center>" CRLF |
26
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29 "</body>" CRLF |
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30 "</html>" CRLF |
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31 ; |
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32 |
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33 |
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34 static u_char ngx_http_msie_padding[] = |
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35 "<!-- a padding to disable MSIE and Chrome friendly error page -->" CRLF |
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36 "<!-- a padding to disable MSIE and Chrome friendly error page -->" CRLF |
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37 "<!-- a padding to disable MSIE and Chrome friendly error page -->" CRLF |
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38 "<!-- a padding to disable MSIE and Chrome friendly error page -->" CRLF |
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39 "<!-- a padding to disable MSIE and Chrome friendly error page -->" CRLF |
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40 "<!-- a padding to disable MSIE and Chrome friendly error page -->" CRLF |
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41 ; |
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42 |
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679 | 44 static u_char ngx_http_msie_refresh_head[] = |
45 "<html><head><meta http-equiv=\"Refresh\" content=\"0; URL="; | |
46 | |
47 | |
48 static u_char ngx_http_msie_refresh_tail[] = | |
49 "\"></head><body></body></html>" CRLF; | |
50 | |
51 | |
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52 static char ngx_http_error_301_page[] = |
144
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53 "<html>" CRLF |
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54 "<head><title>301 Moved Permanently</title></head>" CRLF |
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55 "<body bgcolor=\"white\">" CRLF |
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56 "<center><h1>301 Moved Permanently</h1></center>" CRLF |
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57 ; |
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58 |
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59 |
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60 static char ngx_http_error_302_page[] = |
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61 "<html>" CRLF |
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62 "<head><title>302 Found</title></head>" CRLF |
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63 "<body bgcolor=\"white\">" CRLF |
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64 "<center><h1>302 Found</h1></center>" CRLF |
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65 ; |
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66 |
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67 |
3631 | 68 static char ngx_http_error_303_page[] = |
69 "<html>" CRLF | |
70 "<head><title>303 See Other</title></head>" CRLF | |
71 "<body bgcolor=\"white\">" CRLF | |
72 "<center><h1>303 See Other</h1></center>" CRLF | |
73 ; | |
74 | |
75 | |
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76 static char ngx_http_error_400_page[] = |
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77 "<html>" CRLF |
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78 "<head><title>400 Bad Request</title></head>" CRLF |
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79 "<body bgcolor=\"white\">" CRLF |
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80 "<center><h1>400 Bad Request</h1></center>" CRLF |
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81 ; |
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82 |
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84 static char ngx_http_error_401_page[] = |
499 | 85 "<html>" CRLF |
503 | 86 "<head><title>401 Authorization Required</title></head>" CRLF |
499 | 87 "<body bgcolor=\"white\">" CRLF |
503 | 88 "<center><h1>401 Authorization Required</h1></center>" CRLF |
499 | 89 ; |
90 | |
91 | |
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92 static char ngx_http_error_402_page[] = |
499 | 93 "<html>" CRLF |
94 "<head><title>402 Payment Required</title></head>" CRLF | |
95 "<body bgcolor=\"white\">" CRLF | |
96 "<center><h1>402 Payment Required</h1></center>" CRLF | |
97 ; | |
98 | |
99 | |
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100 static char ngx_http_error_403_page[] = |
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101 "<html>" CRLF |
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102 "<head><title>403 Forbidden</title></head>" CRLF |
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103 "<body bgcolor=\"white\">" CRLF |
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104 "<center><h1>403 Forbidden</h1></center>" CRLF |
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105 ; |
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106 |
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107 |
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108 static char ngx_http_error_404_page[] = |
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109 "<html>" CRLF |
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110 "<head><title>404 Not Found</title></head>" CRLF |
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111 "<body bgcolor=\"white\">" CRLF |
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112 "<center><h1>404 Not Found</h1></center>" CRLF |
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113 ; |
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114 |
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116 static char ngx_http_error_405_page[] = |
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117 "<html>" CRLF |
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118 "<head><title>405 Not Allowed</title></head>" CRLF |
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119 "<body bgcolor=\"white\">" CRLF |
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120 "<center><h1>405 Not Allowed</h1></center>" CRLF |
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121 ; |
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122 |
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124 static char ngx_http_error_406_page[] = |
499 | 125 "<html>" CRLF |
126 "<head><title>406 Not Acceptable</title></head>" CRLF | |
127 "<body bgcolor=\"white\">" CRLF | |
128 "<center><h1>406 Not Acceptable</h1></center>" CRLF | |
129 ; | |
130 | |
131 | |
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132 static char ngx_http_error_408_page[] = |
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133 "<html>" CRLF |
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134 "<head><title>408 Request Time-out</title></head>" CRLF |
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135 "<body bgcolor=\"white\">" CRLF |
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136 "<center><h1>408 Request Time-out</h1></center>" CRLF |
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137 ; |
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138 |
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140 static char ngx_http_error_409_page[] = |
637 | 141 "<html>" CRLF |
142 "<head><title>409 Conflict</title></head>" CRLF | |
143 "<body bgcolor=\"white\">" CRLF | |
144 "<center><h1>409 Conflict</h1></center>" CRLF | |
145 ; | |
146 | |
147 | |
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148 static char ngx_http_error_410_page[] = |
499 | 149 "<html>" CRLF |
150 "<head><title>410 Gone</title></head>" CRLF | |
151 "<body bgcolor=\"white\">" CRLF | |
152 "<center><h1>410 Gone</h1></center>" CRLF | |
153 ; | |
154 | |
155 | |
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156 static char ngx_http_error_411_page[] = |
581 | 157 "<html>" CRLF |
158 "<head><title>411 Length Required</title></head>" CRLF | |
159 "<body bgcolor=\"white\">" CRLF | |
160 "<center><h1>411 Length Required</h1></center>" CRLF | |
161 ; | |
162 | |
163 | |
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164 static char ngx_http_error_412_page[] = |
1057 | 165 "<html>" CRLF |
166 "<head><title>412 Precondition Failed</title></head>" CRLF | |
167 "<body bgcolor=\"white\">" CRLF | |
168 "<center><h1>412 Precondition Failed</h1></center>" CRLF | |
169 ; | |
170 | |
171 | |
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172 static char ngx_http_error_413_page[] = |
162
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173 "<html>" CRLF |
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174 "<head><title>413 Request Entity Too Large</title></head>" CRLF |
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175 "<body bgcolor=\"white\">" CRLF |
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176 "<center><h1>413 Request Entity Too Large</h1></center>" CRLF |
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177 ; |
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178 |
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179 |
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180 static char ngx_http_error_414_page[] = |
67
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181 "<html>" CRLF |
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182 "<head><title>414 Request-URI Too Large</title></head>" CRLF |
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183 "<body bgcolor=\"white\">" CRLF |
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184 "<center><h1>414 Request-URI Too Large</h1></center>" CRLF |
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185 ; |
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186 |
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187 |
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188 static char ngx_http_error_415_page[] = |
637 | 189 "<html>" CRLF |
190 "<head><title>415 Unsupported Media Type</title></head>" CRLF | |
191 "<body bgcolor=\"white\">" CRLF | |
192 "<center><h1>415 Unsupported Media Type</h1></center>" CRLF | |
193 ; | |
194 | |
195 | |
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196 static char ngx_http_error_416_page[] = |
99
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197 "<html>" CRLF |
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198 "<head><title>416 Requested Range Not Satisfiable</title></head>" CRLF |
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199 "<body bgcolor=\"white\">" CRLF |
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200 "<center><h1>416 Requested Range Not Satisfiable</h1></center>" CRLF |
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201 ; |
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202 |
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203 |
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204 static char ngx_http_error_495_page[] = |
647 | 205 "<html>" CRLF |
206 "<head><title>400 The SSL certificate error</title></head>" | |
207 CRLF | |
208 "<body bgcolor=\"white\">" CRLF | |
209 "<center><h1>400 Bad Request</h1></center>" CRLF | |
210 "<center>The SSL certificate error</center>" CRLF | |
211 ; | |
212 | |
213 | |
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214 static char ngx_http_error_496_page[] = |
647 | 215 "<html>" CRLF |
216 "<head><title>400 No required SSL certificate was sent</title></head>" | |
217 CRLF | |
218 "<body bgcolor=\"white\">" CRLF | |
219 "<center><h1>400 Bad Request</h1></center>" CRLF | |
220 "<center>No required SSL certificate was sent</center>" CRLF | |
221 ; | |
222 | |
223 | |
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224 static char ngx_http_error_497_page[] = |
384
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225 "<html>" CRLF |
396
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226 "<head><title>400 The plain HTTP request was sent to HTTPS port</title></head>" |
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227 CRLF |
384
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228 "<body bgcolor=\"white\">" CRLF |
396
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229 "<center><h1>400 Bad Request</h1></center>" CRLF |
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230 "<center>The plain HTTP request was sent to HTTPS port</center>" CRLF |
384
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231 ; |
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232 |
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233 |
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234 static char ngx_http_error_500_page[] = |
47
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235 "<html>" CRLF |
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236 "<head><title>500 Internal Server Error</title></head>" CRLF |
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237 "<body bgcolor=\"white\">" CRLF |
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238 "<center><h1>500 Internal Server Error</h1></center>" CRLF |
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239 ; |
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240 |
26
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241 |
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242 static char ngx_http_error_501_page[] = |
233
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243 "<html>" CRLF |
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244 "<head><title>501 Method Not Implemented</title></head>" CRLF |
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245 "<body bgcolor=\"white\">" CRLF |
535 | 246 "<center><h1>501 Method Not Implemented</h1></center>" CRLF |
233
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247 ; |
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248 |
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249 |
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250 static char ngx_http_error_502_page[] = |
69
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251 "<html>" CRLF |
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252 "<head><title>502 Bad Gateway</title></head>" CRLF |
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253 "<body bgcolor=\"white\">" CRLF |
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254 "<center><h1>502 Bad Gateway</h1></center>" CRLF |
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255 ; |
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256 |
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257 |
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258 static char ngx_http_error_503_page[] = |
162
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259 "<html>" CRLF |
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260 "<head><title>503 Service Temporarily Unavailable</title></head>" CRLF |
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261 "<body bgcolor=\"white\">" CRLF |
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262 "<center><h1>503 Service Temporarily Unavailable</h1></center>" CRLF |
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263 ; |
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264 |
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265 |
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266 static char ngx_http_error_504_page[] = |
69
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267 "<html>" CRLF |
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268 "<head><title>504 Gateway Time-out</title></head>" CRLF |
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269 "<body bgcolor=\"white\">" CRLF |
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270 "<center><h1>504 Gateway Time-out</h1></center>" CRLF |
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271 ; |
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272 |
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273 |
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274 static char ngx_http_error_507_page[] = |
637 | 275 "<html>" CRLF |
276 "<head><title>507 Insufficient Storage</title></head>" CRLF | |
277 "<body bgcolor=\"white\">" CRLF | |
278 "<center><h1>507 Insufficient Storage</h1></center>" CRLF | |
279 ; | |
280 | |
281 | |
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282 static ngx_str_t ngx_http_error_pages[] = { |
499 | 283 |
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284 ngx_null_string, /* 201, 204 */ |
511 | 285 |
2696 | 286 #define NGX_HTTP_LAST_LEVEL_200 202 |
287 #define NGX_HTTP_LEVEL_200 (NGX_HTTP_LAST_LEVEL_200 - 201) | |
511 | 288 |
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289 /* ngx_null_string, */ /* 300 */ |
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290 ngx_string(ngx_http_error_301_page), |
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291 ngx_string(ngx_http_error_302_page), |
3631 | 292 ngx_string(ngx_http_error_303_page), |
26
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293 |
2696 | 294 #define NGX_HTTP_LAST_LEVEL_300 304 |
295 #define NGX_HTTP_LEVEL_300 (NGX_HTTP_LAST_LEVEL_300 - 301) | |
499 | 296 |
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297 ngx_string(ngx_http_error_400_page), |
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298 ngx_string(ngx_http_error_401_page), |
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299 ngx_string(ngx_http_error_402_page), |
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300 ngx_string(ngx_http_error_403_page), |
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301 ngx_string(ngx_http_error_404_page), |
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302 ngx_string(ngx_http_error_405_page), |
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303 ngx_string(ngx_http_error_406_page), |
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304 ngx_null_string, /* 407 */ |
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305 ngx_string(ngx_http_error_408_page), |
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306 ngx_string(ngx_http_error_409_page), |
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307 ngx_string(ngx_http_error_410_page), |
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308 ngx_string(ngx_http_error_411_page), |
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309 ngx_string(ngx_http_error_412_page), |
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310 ngx_string(ngx_http_error_413_page), |
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311 ngx_string(ngx_http_error_414_page), |
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312 ngx_string(ngx_http_error_415_page), |
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313 ngx_string(ngx_http_error_416_page), |
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314 |
2696 | 315 #define NGX_HTTP_LAST_LEVEL_400 417 |
316 #define NGX_HTTP_LEVEL_400 (NGX_HTTP_LAST_LEVEL_400 - 400) | |
499 | 317 |
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318 ngx_string(ngx_http_error_495_page), /* 495, https certificate error */ |
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319 ngx_string(ngx_http_error_496_page), /* 496, https no certificate */ |
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320 ngx_string(ngx_http_error_497_page), /* 497, http to https */ |
1672 | 321 ngx_string(ngx_http_error_404_page), /* 498, canceled */ |
1604
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322 ngx_null_string, /* 499, client has closed connection */ |
335
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323 |
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324 ngx_string(ngx_http_error_500_page), |
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325 ngx_string(ngx_http_error_501_page), |
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326 ngx_string(ngx_http_error_502_page), |
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327 ngx_string(ngx_http_error_503_page), |
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328 ngx_string(ngx_http_error_504_page), |
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329 ngx_null_string, /* 505 */ |
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330 ngx_null_string, /* 506 */ |
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331 ngx_string(ngx_http_error_507_page) |
2696 | 332 |
333 #define NGX_HTTP_LAST_LEVEL_500 508 | |
334 | |
26
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335 }; |
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336 |
59
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337 |
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338 static ngx_str_t ngx_http_get_name = { 3, (u_char *) "GET " }; |
716
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339 |
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340 |
487 | 341 ngx_int_t |
342 ngx_http_special_response_handler(ngx_http_request_t *r, ngx_int_t error) | |
24
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343 { |
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344 ngx_uint_t i, err; |
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345 ngx_http_err_page_t *err_page; |
158
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346 ngx_http_core_loc_conf_t *clcf; |
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347 |
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348 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
2037 | 349 "http special response: %d, \"%V?%V\"", |
350 error, &r->uri, &r->args); | |
527 | 351 |
677 | 352 r->err_status = error; |
26
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353 |
2019 | 354 if (r->keepalive) { |
68
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355 switch (error) { |
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356 case NGX_HTTP_BAD_REQUEST: |
162
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357 case NGX_HTTP_REQUEST_ENTITY_TOO_LARGE: |
68
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358 case NGX_HTTP_REQUEST_URI_TOO_LARGE: |
384
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359 case NGX_HTTP_TO_HTTPS: |
647 | 360 case NGX_HTTPS_CERT_ERROR: |
361 case NGX_HTTPS_NO_CERT: | |
68
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362 case NGX_HTTP_INTERNAL_SERVER_ERROR: |
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363 r->keepalive = 0; |
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364 } |
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365 } |
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366 |
88
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367 if (r->lingering_close == 1) { |
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368 switch (error) { |
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369 case NGX_HTTP_BAD_REQUEST: |
384
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370 case NGX_HTTP_TO_HTTPS: |
647 | 371 case NGX_HTTPS_CERT_ERROR: |
372 case NGX_HTTPS_NO_CERT: | |
88
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373 r->lingering_close = 0; |
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374 } |
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375 } |
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376 |
675 | 377 r->headers_out.content_type.len = 0; |
378 | |
176
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379 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
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380 |
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381 if (!r->error_page && clcf->error_pages && r->uri_changes != 0) { |
679 | 382 |
383 if (clcf->recursive_error_pages == 0) { | |
384 r->error_page = 1; | |
385 } | |
477 | 386 |
176
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387 err_page = clcf->error_pages->elts; |
477 | 388 |
176
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389 for (i = 0; i < clcf->error_pages->nelts; i++) { |
326
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390 if (err_page[i].status == error) { |
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391 return ngx_http_send_error_page(r, &err_page[i]); |
176
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392 } |
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393 } |
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394 } |
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395 |
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396 r->expect_tested = 1; |
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397 |
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398 if (ngx_http_discard_request_body(r) != NGX_OK) { |
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399 error = NGX_HTTP_INTERNAL_SERVER_ERROR; |
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400 } |
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401 |
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402 if (clcf->msie_refresh |
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403 && r->headers_in.msie |
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404 && (error == NGX_HTTP_MOVED_PERMANENTLY |
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405 || error == NGX_HTTP_MOVED_TEMPORARILY)) |
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406 { |
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407 return ngx_http_send_refresh(r); |
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408 } |
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409 |
633 | 410 if (error == NGX_HTTP_CREATED) { |
411 /* 201 */ | |
412 err = 0; | |
637 | 413 r->header_only = 1; |
633 | 414 |
415 } else if (error == NGX_HTTP_NO_CONTENT) { | |
511 | 416 /* 204 */ |
417 err = 0; | |
418 | |
2696 | 419 } else if (error >= NGX_HTTP_MOVED_PERMANENTLY |
420 && error < NGX_HTTP_LAST_LEVEL_300) | |
421 { | |
176
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422 /* 3XX */ |
513 | 423 err = error - NGX_HTTP_MOVED_PERMANENTLY + NGX_HTTP_LEVEL_200; |
176
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424 |
2696 | 425 } else if (error >= NGX_HTTP_BAD_REQUEST |
426 && error < NGX_HTTP_LAST_LEVEL_400) | |
427 { | |
176
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428 /* 4XX */ |
511 | 429 err = error - NGX_HTTP_BAD_REQUEST + NGX_HTTP_LEVEL_200 |
430 + NGX_HTTP_LEVEL_300; | |
176
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431 |
2696 | 432 } else if (error >= NGX_HTTP_OWN_CODES |
433 && error < NGX_HTTP_LAST_LEVEL_500) | |
434 { | |
335
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435 /* 49X, 5XX */ |
587 | 436 err = error - NGX_HTTP_OWN_CODES + NGX_HTTP_LEVEL_200 |
511 | 437 + NGX_HTTP_LEVEL_300 |
499 | 438 + NGX_HTTP_LEVEL_400; |
335
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439 switch (error) { |
384
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440 case NGX_HTTP_TO_HTTPS: |
647 | 441 case NGX_HTTPS_CERT_ERROR: |
442 case NGX_HTTPS_NO_CERT: | |
679 | 443 r->err_status = NGX_HTTP_BAD_REQUEST; |
384
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444 break; |
335
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|
445 } |
2696 | 446 |
447 } else { | |
448 /* unknown code, zero body */ | |
449 err = 0; | |
176
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450 } |
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451 |
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452 return ngx_http_send_special_response(r, clcf, err); |
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453 } |
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454 |
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455 |
2787
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|
456 ngx_int_t |
2821
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457 ngx_http_filter_finalize_request(ngx_http_request_t *r, ngx_module_t *m, |
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|
458 ngx_int_t error) |
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459 { |
2821
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460 void *ctx; |
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461 ngx_int_t rc; |
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462 |
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463 ngx_http_clean_header(r); |
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464 |
2822 | 465 ctx = NULL; |
466 | |
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467 if (m) { |
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468 ctx = r->ctx[m->ctx_index]; |
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469 } |
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470 |
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471 /* clear the modules contexts */ |
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472 ngx_memzero(r->ctx, sizeof(void *) * ngx_http_max_module); |
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473 |
2821
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474 if (m) { |
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475 r->ctx[m->ctx_index] = ctx; |
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476 } |
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477 |
2819
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478 r->filter_finalize = 1; |
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479 |
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480 rc = ngx_http_special_response_handler(r, error); |
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481 |
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482 /* NGX_ERROR resets any pending data */ |
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483 |
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484 switch (rc) { |
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485 |
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486 case NGX_OK: |
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487 case NGX_DONE: |
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488 return NGX_ERROR; |
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489 |
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490 default: |
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491 return rc; |
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492 } |
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493 } |
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494 |
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495 |
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496 void |
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497 ngx_http_clean_header(ngx_http_request_t *r) |
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498 { |
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499 ngx_memzero(&r->headers_out.status, |
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500 sizeof(ngx_http_headers_out_t) |
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501 - offsetof(ngx_http_headers_out_t, status)); |
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|
502 |
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503 r->headers_out.headers.part.nelts = 0; |
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504 r->headers_out.headers.part.next = NULL; |
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505 r->headers_out.headers.last = &r->headers_out.headers.part; |
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506 |
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507 r->headers_out.content_length_n = -1; |
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508 r->headers_out.last_modified_time = -1; |
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509 } |
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|
510 |
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|
511 |
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512 static ngx_int_t |
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513 ngx_http_send_error_page(ngx_http_request_t *r, ngx_http_err_page_t *err_page) |
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514 { |
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515 ngx_int_t overwrite; |
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516 ngx_str_t uri, args; |
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517 ngx_table_elt_t *location; |
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518 ngx_http_core_loc_conf_t *clcf; |
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519 |
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520 overwrite = err_page->overwrite; |
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521 |
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522 if (overwrite && overwrite != NGX_HTTP_OK) { |
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523 r->expect_tested = 1; |
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524 } |
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525 |
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|
526 r->err_status = overwrite; |
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527 |
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528 if (ngx_http_complex_value(r, &err_page->value, &uri) != NGX_OK) { |
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529 return NGX_ERROR; |
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530 } |
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|
531 |
2685
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|
532 if (uri.data[0] == '/') { |
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533 |
2685
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|
534 if (err_page->value.lengths) { |
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535 ngx_http_split_args(r, &uri, &args); |
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536 |
2685
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|
537 } else { |
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|
538 args = err_page->args; |
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539 } |
1922
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|
540 |
2192
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|
541 if (r->method != NGX_HTTP_HEAD) { |
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|
542 r->method = NGX_HTTP_GET; |
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|
543 r->method_name = ngx_http_get_name; |
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|
544 } |
1922
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|
545 |
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|
546 return ngx_http_internal_redirect(r, &uri, &args); |
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|
547 } |
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548 |
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|
549 if (uri.data[0] == '@') { |
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|
550 return ngx_http_named_location(r, &uri); |
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|
551 } |
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|
552 |
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|
553 location = ngx_list_push(&r->headers_out.headers); |
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|
554 |
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|
555 if (location == NULL) { |
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|
556 return NGX_ERROR; |
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|
557 } |
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|
558 |
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|
559 r->err_status = NGX_HTTP_MOVED_TEMPORARILY; |
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|
560 |
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|
561 location->hash = 1; |
3516
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|
562 ngx_str_set(&location->key, "Location"); |
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|
563 location->value = uri; |
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|
564 |
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|
565 r->headers_out.location = location; |
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|
566 |
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|
567 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
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|
568 |
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|
569 if (clcf->msie_refresh && r->headers_in.msie) { |
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|
570 return ngx_http_send_refresh(r); |
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|
571 } |
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|
572 |
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573 return ngx_http_send_special_response(r, clcf, NGX_HTTP_MOVED_TEMPORARILY |
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574 - NGX_HTTP_MOVED_PERMANENTLY |
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575 + NGX_HTTP_LEVEL_200); |
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576 } |
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577 |
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578 |
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579 static ngx_int_t |
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580 ngx_http_send_special_response(ngx_http_request_t *r, |
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581 ngx_http_core_loc_conf_t *clcf, ngx_uint_t err) |
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582 { |
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583 u_char *tail; |
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584 size_t len; |
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585 ngx_int_t rc; |
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586 ngx_buf_t *b; |
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587 ngx_uint_t msie_padding; |
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588 ngx_chain_t out[3]; |
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589 |
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590 if (clcf->server_tokens) { |
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591 len = sizeof(ngx_http_error_full_tail) - 1; |
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592 tail = ngx_http_error_full_tail; |
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593 |
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594 } else { |
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595 len = sizeof(ngx_http_error_tail) - 1; |
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596 tail = ngx_http_error_tail; |
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597 } |
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598 |
356
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599 msie_padding = 0; |
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600 |
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601 if (ngx_http_error_pages[err].len) { |
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602 r->headers_out.content_length_n = ngx_http_error_pages[err].len + len; |
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603 if (clcf->msie_padding |
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604 && (r->headers_in.msie || r->headers_in.chrome) |
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605 && r->http_version >= NGX_HTTP_VERSION_10 |
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606 && err >= NGX_HTTP_LEVEL_300) |
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607 { |
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608 r->headers_out.content_length_n += |
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609 sizeof(ngx_http_msie_padding) - 1; |
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610 msie_padding = 1; |
331
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611 } |
99
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612 |
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613 r->headers_out.content_type_len = sizeof("text/html") - 1; |
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614 ngx_str_set(&r->headers_out.content_type, "text/html"); |
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615 r->headers_out.content_type_lowcase = NULL; |
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616 |
68
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617 } else { |
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618 r->headers_out.content_length_n = -1; |
165
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619 } |
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620 |
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621 if (r->headers_out.content_length) { |
509 | 622 r->headers_out.content_length->hash = 0; |
153
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623 r->headers_out.content_length = NULL; |
68
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624 } |
24
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625 |
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626 ngx_http_clear_accept_ranges(r); |
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627 ngx_http_clear_last_modified(r); |
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628 |
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629 rc = ngx_http_send_header(r); |
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630 |
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631 if (rc == NGX_ERROR || r->header_only) { |
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632 return rc; |
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633 } |
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634 |
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635 if (ngx_http_error_pages[err].len == 0) { |
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636 return NGX_OK; |
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637 } |
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638 |
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639 b = ngx_calloc_buf(r->pool); |
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640 if (b == NULL) { |
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641 return NGX_ERROR; |
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642 } |
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643 |
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644 b->memory = 1; |
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645 b->pos = ngx_http_error_pages[err].data; |
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646 b->last = ngx_http_error_pages[err].data + ngx_http_error_pages[err].len; |
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647 |
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648 out[0].buf = b; |
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649 out[0].next = &out[1]; |
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650 |
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651 b = ngx_calloc_buf(r->pool); |
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652 if (b == NULL) { |
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653 return NGX_ERROR; |
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654 } |
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655 |
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656 b->memory = 1; |
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657 |
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658 b->pos = tail; |
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659 b->last = tail + len; |
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660 |
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661 out[1].buf = b; |
2024 | 662 out[1].next = NULL; |
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663 |
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664 if (msie_padding) { |
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665 b = ngx_calloc_buf(r->pool); |
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666 if (b == NULL) { |
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667 return NGX_ERROR; |
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668 } |
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669 |
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670 b->memory = 1; |
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671 b->pos = ngx_http_msie_padding; |
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672 b->last = ngx_http_msie_padding + sizeof(ngx_http_msie_padding) - 1; |
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673 |
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674 out[1].next = &out[2]; |
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675 out[2].buf = b; |
2024 | 676 out[2].next = NULL; |
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677 } |
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678 |
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679 if (r == r->main) { |
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680 b->last_buf = 1; |
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681 } |
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682 |
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683 b->last_in_chain = 1; |
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684 |
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685 return ngx_http_output_filter(r, &out[0]); |
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686 } |
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687 |
679 | 688 |
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689 static ngx_int_t |
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690 ngx_http_send_refresh(ngx_http_request_t *r) |
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691 { |
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692 u_char *p, *location; |
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693 size_t len, size; |
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694 uintptr_t escape; |
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695 ngx_int_t rc; |
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696 ngx_buf_t *b; |
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697 ngx_chain_t out; |
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698 |
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699 len = r->headers_out.location->value.len; |
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700 location = r->headers_out.location->value.data; |
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701 |
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702 escape = 2 * ngx_escape_uri(NULL, location, len, NGX_ESCAPE_REFRESH); |
1298
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703 |
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704 size = sizeof(ngx_http_msie_refresh_head) - 1 |
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705 + escape + len |
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706 + sizeof(ngx_http_msie_refresh_tail) - 1; |
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707 |
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708 r->err_status = NGX_HTTP_OK; |
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709 |
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710 r->headers_out.content_type_len = sizeof("text/html") - 1; |
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711 ngx_str_set(&r->headers_out.content_type, "text/html"); |
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712 r->headers_out.content_type_lowcase = NULL; |
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713 |
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714 r->headers_out.location->hash = 0; |
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715 r->headers_out.location = NULL; |
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716 |
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717 r->headers_out.content_length_n = size; |
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718 |
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719 if (r->headers_out.content_length) { |
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720 r->headers_out.content_length->hash = 0; |
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721 r->headers_out.content_length = NULL; |
679 | 722 } |
723 | |
577 | 724 ngx_http_clear_accept_ranges(r); |
725 ngx_http_clear_last_modified(r); | |
726 | |
103
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727 rc = ngx_http_send_header(r); |
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728 |
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729 if (rc == NGX_ERROR || r->header_only) { |
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730 return rc; |
103
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731 } |
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732 |
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733 b = ngx_create_temp_buf(r->pool, size); |
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734 if (b == NULL) { |
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735 return NGX_ERROR; |
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736 } |
1592 | 737 |
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738 p = ngx_cpymem(b->pos, ngx_http_msie_refresh_head, |
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739 sizeof(ngx_http_msie_refresh_head) - 1); |
679 | 740 |
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741 if (escape == 0) { |
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742 p = ngx_cpymem(p, location, len); |
679 | 743 |
744 } else { | |
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745 p = (u_char *) ngx_escape_uri(p, location, len, NGX_ESCAPE_REFRESH); |
103
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746 } |
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747 |
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748 b->last = ngx_cpymem(p, ngx_http_msie_refresh_tail, |
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749 sizeof(ngx_http_msie_refresh_tail) - 1); |
509 | 750 |
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751 b->last_buf = 1; |
509 | 752 b->last_in_chain = 1; |
103
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753 |
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754 out.buf = b; |
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755 out.next = NULL; |
501 | 756 |
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757 return ngx_http_output_filter(r, &out); |
24
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758 } |