Mercurial > hg > nginx-quic
annotate src/http/ngx_http_special_response.c @ 4617:972642646f06
Rewrite: fixed escaping and possible segfault (ticket #162).
The following code resulted in incorrect escaping of uri and possible
segfault:
location / {
rewrite ^(.*) $1?c=$1;
return 200 "$uri";
}
If there were arguments in a rewrite's replacement string, and length was
actually calculated (due to duplicate captures as in the example above,
or variables present), the is_args flag was set and incorrectly copied
after length calculation. This resulted in escaping applied to the uri part
of the replacement, resulting in incorrect escaping. Additionally, buffer
was allocated without escaping expected, thus this also resulted in buffer
overrun and possible segfault.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Fri, 11 May 2012 13:19:22 +0000 |
parents | d11f86a16e3b |
children | 4a18bf1833a9 7556a7acb14f |
rev | line source |
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441
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 #include <ngx_http.h> |
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11 #include <nginx.h> |
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13 |
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14 static ngx_int_t ngx_http_send_error_page(ngx_http_request_t *r, |
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15 ngx_http_err_page_t *err_page); |
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16 static ngx_int_t ngx_http_send_special_response(ngx_http_request_t *r, |
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17 ngx_http_core_loc_conf_t *clcf, ngx_uint_t err); |
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18 static ngx_int_t ngx_http_send_refresh(ngx_http_request_t *r); |
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19 |
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20 |
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21 static u_char ngx_http_error_full_tail[] = |
1592 | 22 "<hr><center>" NGINX_VER "</center>" CRLF |
23 "</body>" CRLF | |
24 "</html>" CRLF | |
25 ; | |
26 | |
27 | |
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28 static u_char ngx_http_error_tail[] = |
1592 | 29 "<hr><center>nginx</center>" CRLF |
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30 "</body>" CRLF |
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31 "</html>" CRLF |
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32 ; |
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33 |
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34 |
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35 static u_char ngx_http_msie_padding[] = |
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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 "<!-- a padding to disable MSIE and Chrome friendly error page -->" CRLF |
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42 ; |
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43 |
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44 |
679 | 45 static u_char ngx_http_msie_refresh_head[] = |
46 "<html><head><meta http-equiv=\"Refresh\" content=\"0; URL="; | |
47 | |
48 | |
49 static u_char ngx_http_msie_refresh_tail[] = | |
50 "\"></head><body></body></html>" CRLF; | |
51 | |
52 | |
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53 static char ngx_http_error_301_page[] = |
144
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54 "<html>" CRLF |
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55 "<head><title>301 Moved Permanently</title></head>" CRLF |
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56 "<body bgcolor=\"white\">" CRLF |
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57 "<center><h1>301 Moved Permanently</h1></center>" CRLF |
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58 ; |
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59 |
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60 |
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61 static char ngx_http_error_302_page[] = |
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62 "<html>" CRLF |
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63 "<head><title>302 Found</title></head>" CRLF |
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64 "<body bgcolor=\"white\">" CRLF |
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65 "<center><h1>302 Found</h1></center>" CRLF |
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67 |
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68 |
3631 | 69 static char ngx_http_error_303_page[] = |
70 "<html>" CRLF | |
71 "<head><title>303 See Other</title></head>" CRLF | |
72 "<body bgcolor=\"white\">" CRLF | |
73 "<center><h1>303 See Other</h1></center>" CRLF | |
74 ; | |
75 | |
76 | |
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77 static char ngx_http_error_307_page[] = |
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78 "<html>" CRLF |
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79 "<head><title>307 Temporary Redirect</title></head>" CRLF |
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80 "<body bgcolor=\"white\">" CRLF |
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81 "<center><h1>307 Temporary Redirect</h1></center>" CRLF |
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82 ; |
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83 |
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84 |
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85 static char ngx_http_error_400_page[] = |
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86 "<html>" CRLF |
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87 "<head><title>400 Bad Request</title></head>" CRLF |
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88 "<body bgcolor=\"white\">" CRLF |
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89 "<center><h1>400 Bad Request</h1></center>" CRLF |
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90 ; |
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91 |
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93 static char ngx_http_error_401_page[] = |
499 | 94 "<html>" CRLF |
503 | 95 "<head><title>401 Authorization Required</title></head>" CRLF |
499 | 96 "<body bgcolor=\"white\">" CRLF |
503 | 97 "<center><h1>401 Authorization Required</h1></center>" CRLF |
499 | 98 ; |
99 | |
100 | |
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101 static char ngx_http_error_402_page[] = |
499 | 102 "<html>" CRLF |
103 "<head><title>402 Payment Required</title></head>" CRLF | |
104 "<body bgcolor=\"white\">" CRLF | |
105 "<center><h1>402 Payment Required</h1></center>" CRLF | |
106 ; | |
107 | |
108 | |
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109 static char ngx_http_error_403_page[] = |
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110 "<html>" CRLF |
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111 "<head><title>403 Forbidden</title></head>" CRLF |
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112 "<body bgcolor=\"white\">" CRLF |
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113 "<center><h1>403 Forbidden</h1></center>" CRLF |
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114 ; |
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115 |
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117 static char ngx_http_error_404_page[] = |
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118 "<html>" CRLF |
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119 "<head><title>404 Not Found</title></head>" CRLF |
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120 "<body bgcolor=\"white\">" CRLF |
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121 "<center><h1>404 Not Found</h1></center>" CRLF |
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122 ; |
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123 |
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124 |
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125 static char ngx_http_error_405_page[] = |
96
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126 "<html>" CRLF |
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127 "<head><title>405 Not Allowed</title></head>" CRLF |
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128 "<body bgcolor=\"white\">" CRLF |
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129 "<center><h1>405 Not Allowed</h1></center>" CRLF |
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130 ; |
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131 |
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133 static char ngx_http_error_406_page[] = |
499 | 134 "<html>" CRLF |
135 "<head><title>406 Not Acceptable</title></head>" CRLF | |
136 "<body bgcolor=\"white\">" CRLF | |
137 "<center><h1>406 Not Acceptable</h1></center>" CRLF | |
138 ; | |
139 | |
140 | |
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141 static char ngx_http_error_408_page[] = |
69
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142 "<html>" CRLF |
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143 "<head><title>408 Request Time-out</title></head>" CRLF |
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144 "<body bgcolor=\"white\">" CRLF |
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145 "<center><h1>408 Request Time-out</h1></center>" CRLF |
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146 ; |
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147 |
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148 |
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149 static char ngx_http_error_409_page[] = |
637 | 150 "<html>" CRLF |
151 "<head><title>409 Conflict</title></head>" CRLF | |
152 "<body bgcolor=\"white\">" CRLF | |
153 "<center><h1>409 Conflict</h1></center>" CRLF | |
154 ; | |
155 | |
156 | |
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157 static char ngx_http_error_410_page[] = |
499 | 158 "<html>" CRLF |
159 "<head><title>410 Gone</title></head>" CRLF | |
160 "<body bgcolor=\"white\">" CRLF | |
161 "<center><h1>410 Gone</h1></center>" CRLF | |
162 ; | |
163 | |
164 | |
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165 static char ngx_http_error_411_page[] = |
581 | 166 "<html>" CRLF |
167 "<head><title>411 Length Required</title></head>" CRLF | |
168 "<body bgcolor=\"white\">" CRLF | |
169 "<center><h1>411 Length Required</h1></center>" CRLF | |
170 ; | |
171 | |
172 | |
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173 static char ngx_http_error_412_page[] = |
1057 | 174 "<html>" CRLF |
175 "<head><title>412 Precondition Failed</title></head>" CRLF | |
176 "<body bgcolor=\"white\">" CRLF | |
177 "<center><h1>412 Precondition Failed</h1></center>" CRLF | |
178 ; | |
179 | |
180 | |
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181 static char ngx_http_error_413_page[] = |
162
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182 "<html>" CRLF |
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183 "<head><title>413 Request Entity Too Large</title></head>" CRLF |
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184 "<body bgcolor=\"white\">" CRLF |
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185 "<center><h1>413 Request Entity Too Large</h1></center>" CRLF |
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186 ; |
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187 |
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188 |
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189 static char ngx_http_error_414_page[] = |
67
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190 "<html>" CRLF |
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191 "<head><title>414 Request-URI Too Large</title></head>" CRLF |
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192 "<body bgcolor=\"white\">" CRLF |
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193 "<center><h1>414 Request-URI Too Large</h1></center>" CRLF |
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194 ; |
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195 |
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196 |
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197 static char ngx_http_error_415_page[] = |
637 | 198 "<html>" CRLF |
199 "<head><title>415 Unsupported Media Type</title></head>" CRLF | |
200 "<body bgcolor=\"white\">" CRLF | |
201 "<center><h1>415 Unsupported Media Type</h1></center>" CRLF | |
202 ; | |
203 | |
204 | |
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205 static char ngx_http_error_416_page[] = |
99
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206 "<html>" CRLF |
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207 "<head><title>416 Requested Range Not Satisfiable</title></head>" CRLF |
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208 "<body bgcolor=\"white\">" CRLF |
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209 "<center><h1>416 Requested Range Not Satisfiable</h1></center>" CRLF |
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210 ; |
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211 |
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212 |
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213 static char ngx_http_error_494_page[] = |
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214 "<html>" CRLF |
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215 "<head><title>400 Request Header Or Cookie Too Large</title></head>" |
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216 CRLF |
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217 "<body bgcolor=\"white\">" CRLF |
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218 "<center><h1>400 Bad Request</h1></center>" CRLF |
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219 "<center>Request Header Or Cookie Too Large</center>" CRLF |
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220 ; |
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221 |
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222 |
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223 static char ngx_http_error_495_page[] = |
647 | 224 "<html>" CRLF |
225 "<head><title>400 The SSL certificate error</title></head>" | |
226 CRLF | |
227 "<body bgcolor=\"white\">" CRLF | |
228 "<center><h1>400 Bad Request</h1></center>" CRLF | |
229 "<center>The SSL certificate error</center>" CRLF | |
230 ; | |
231 | |
232 | |
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233 static char ngx_http_error_496_page[] = |
647 | 234 "<html>" CRLF |
235 "<head><title>400 No required SSL certificate was sent</title></head>" | |
236 CRLF | |
237 "<body bgcolor=\"white\">" CRLF | |
238 "<center><h1>400 Bad Request</h1></center>" CRLF | |
239 "<center>No required SSL certificate was sent</center>" CRLF | |
240 ; | |
241 | |
242 | |
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243 static char ngx_http_error_497_page[] = |
384
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244 "<html>" CRLF |
396
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245 "<head><title>400 The plain HTTP request was sent to HTTPS port</title></head>" |
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246 CRLF |
384
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247 "<body bgcolor=\"white\">" CRLF |
396
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248 "<center><h1>400 Bad Request</h1></center>" CRLF |
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249 "<center>The plain HTTP request was sent to HTTPS port</center>" CRLF |
384
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250 ; |
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251 |
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252 |
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253 static char ngx_http_error_500_page[] = |
47
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254 "<html>" CRLF |
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255 "<head><title>500 Internal Server Error</title></head>" CRLF |
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256 "<body bgcolor=\"white\">" CRLF |
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257 "<center><h1>500 Internal Server Error</h1></center>" CRLF |
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258 ; |
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259 |
26
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260 |
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261 static char ngx_http_error_501_page[] = |
233
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262 "<html>" CRLF |
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263 "<head><title>501 Method Not Implemented</title></head>" CRLF |
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264 "<body bgcolor=\"white\">" CRLF |
535 | 265 "<center><h1>501 Method Not Implemented</h1></center>" CRLF |
233
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266 ; |
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267 |
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268 |
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269 static char ngx_http_error_502_page[] = |
69
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270 "<html>" CRLF |
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271 "<head><title>502 Bad Gateway</title></head>" CRLF |
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272 "<body bgcolor=\"white\">" CRLF |
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273 "<center><h1>502 Bad Gateway</h1></center>" CRLF |
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274 ; |
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275 |
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276 |
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277 static char ngx_http_error_503_page[] = |
162
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278 "<html>" CRLF |
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279 "<head><title>503 Service Temporarily Unavailable</title></head>" CRLF |
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280 "<body bgcolor=\"white\">" CRLF |
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281 "<center><h1>503 Service Temporarily Unavailable</h1></center>" CRLF |
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282 ; |
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283 |
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284 |
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285 static char ngx_http_error_504_page[] = |
69
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286 "<html>" CRLF |
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287 "<head><title>504 Gateway Time-out</title></head>" CRLF |
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288 "<body bgcolor=\"white\">" CRLF |
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289 "<center><h1>504 Gateway Time-out</h1></center>" CRLF |
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290 ; |
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291 |
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292 |
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293 static char ngx_http_error_507_page[] = |
637 | 294 "<html>" CRLF |
295 "<head><title>507 Insufficient Storage</title></head>" CRLF | |
296 "<body bgcolor=\"white\">" CRLF | |
297 "<center><h1>507 Insufficient Storage</h1></center>" CRLF | |
298 ; | |
299 | |
300 | |
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301 static ngx_str_t ngx_http_error_pages[] = { |
499 | 302 |
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303 ngx_null_string, /* 201, 204 */ |
511 | 304 |
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305 #define NGX_HTTP_LAST_2XX 202 |
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306 #define NGX_HTTP_OFF_3XX (NGX_HTTP_LAST_2XX - 201) |
511 | 307 |
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308 /* ngx_null_string, */ /* 300 */ |
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309 ngx_string(ngx_http_error_301_page), |
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310 ngx_string(ngx_http_error_302_page), |
3631 | 311 ngx_string(ngx_http_error_303_page), |
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312 ngx_null_string, /* 304 */ |
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313 ngx_null_string, /* 305 */ |
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314 ngx_null_string, /* 306 */ |
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315 ngx_string(ngx_http_error_307_page), |
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316 |
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317 #define NGX_HTTP_LAST_3XX 308 |
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318 #define NGX_HTTP_OFF_4XX (NGX_HTTP_LAST_3XX - 301 + NGX_HTTP_OFF_3XX) |
499 | 319 |
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320 ngx_string(ngx_http_error_400_page), |
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321 ngx_string(ngx_http_error_401_page), |
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322 ngx_string(ngx_http_error_402_page), |
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323 ngx_string(ngx_http_error_403_page), |
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324 ngx_string(ngx_http_error_404_page), |
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325 ngx_string(ngx_http_error_405_page), |
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326 ngx_string(ngx_http_error_406_page), |
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327 ngx_null_string, /* 407 */ |
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328 ngx_string(ngx_http_error_408_page), |
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329 ngx_string(ngx_http_error_409_page), |
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330 ngx_string(ngx_http_error_410_page), |
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331 ngx_string(ngx_http_error_411_page), |
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332 ngx_string(ngx_http_error_412_page), |
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333 ngx_string(ngx_http_error_413_page), |
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334 ngx_string(ngx_http_error_414_page), |
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335 ngx_string(ngx_http_error_415_page), |
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336 ngx_string(ngx_http_error_416_page), |
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337 |
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338 #define NGX_HTTP_LAST_4XX 417 |
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339 #define NGX_HTTP_OFF_5XX (NGX_HTTP_LAST_4XX - 400 + NGX_HTTP_OFF_4XX) |
499 | 340 |
3848
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341 ngx_string(ngx_http_error_494_page), /* 494, request header too large */ |
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342 ngx_string(ngx_http_error_495_page), /* 495, https certificate error */ |
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343 ngx_string(ngx_http_error_496_page), /* 496, https no certificate */ |
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344 ngx_string(ngx_http_error_497_page), /* 497, http to https */ |
1672 | 345 ngx_string(ngx_http_error_404_page), /* 498, canceled */ |
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346 ngx_null_string, /* 499, client has closed connection */ |
335
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347 |
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348 ngx_string(ngx_http_error_500_page), |
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349 ngx_string(ngx_http_error_501_page), |
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350 ngx_string(ngx_http_error_502_page), |
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351 ngx_string(ngx_http_error_503_page), |
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352 ngx_string(ngx_http_error_504_page), |
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353 ngx_null_string, /* 505 */ |
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354 ngx_null_string, /* 506 */ |
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355 ngx_string(ngx_http_error_507_page) |
2696 | 356 |
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357 #define NGX_HTTP_LAST_5XX 508 |
2696 | 358 |
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359 }; |
24
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360 |
59
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361 |
717
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362 static ngx_str_t ngx_http_get_name = { 3, (u_char *) "GET " }; |
716
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363 |
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364 |
487 | 365 ngx_int_t |
366 ngx_http_special_response_handler(ngx_http_request_t *r, ngx_int_t error) | |
24
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367 { |
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368 ngx_uint_t i, err; |
176
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369 ngx_http_err_page_t *err_page; |
158
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370 ngx_http_core_loc_conf_t *clcf; |
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371 |
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372 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
2037 | 373 "http special response: %d, \"%V?%V\"", |
374 error, &r->uri, &r->args); | |
527 | 375 |
677 | 376 r->err_status = error; |
26
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377 |
2019 | 378 if (r->keepalive) { |
68
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379 switch (error) { |
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380 case NGX_HTTP_BAD_REQUEST: |
162
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diff
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381 case NGX_HTTP_REQUEST_ENTITY_TOO_LARGE: |
68
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382 case NGX_HTTP_REQUEST_URI_TOO_LARGE: |
384
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383 case NGX_HTTP_TO_HTTPS: |
647 | 384 case NGX_HTTPS_CERT_ERROR: |
385 case NGX_HTTPS_NO_CERT: | |
68
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386 case NGX_HTTP_INTERNAL_SERVER_ERROR: |
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387 r->keepalive = 0; |
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388 } |
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389 } |
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390 |
4201
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Stylistic change in checking the boolean expression.
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|
391 if (r->lingering_close) { |
88
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|
392 switch (error) { |
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393 case NGX_HTTP_BAD_REQUEST: |
384
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|
394 case NGX_HTTP_TO_HTTPS: |
647 | 395 case NGX_HTTPS_CERT_ERROR: |
396 case NGX_HTTPS_NO_CERT: | |
88
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397 r->lingering_close = 0; |
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398 } |
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399 } |
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400 |
675 | 401 r->headers_out.content_type.len = 0; |
402 | |
176
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403 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
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404 |
2174
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disable error_page loop in 500 error when recursive errors are enabled
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diff
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|
405 if (!r->error_page && clcf->error_pages && r->uri_changes != 0) { |
679 | 406 |
407 if (clcf->recursive_error_pages == 0) { | |
408 r->error_page = 1; | |
409 } | |
477 | 410 |
176
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411 err_page = clcf->error_pages->elts; |
477 | 412 |
176
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413 for (i = 0; i < clcf->error_pages->nelts; i++) { |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
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323
diff
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|
414 if (err_page[i].status == error) { |
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415 return ngx_http_send_error_page(r, &err_page[i]); |
176
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416 } |
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417 } |
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418 } |
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419 |
2436
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2192
diff
changeset
|
420 r->expect_tested = 1; |
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2192
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|
421 |
2191
808547aa8c12
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2174
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422 if (ngx_http_discard_request_body(r) != NGX_OK) { |
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423 error = NGX_HTTP_INTERNAL_SERVER_ERROR; |
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424 } |
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|
425 |
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426 if (clcf->msie_refresh |
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427 && r->headers_in.msie |
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428 && (error == NGX_HTTP_MOVED_PERMANENTLY |
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429 || error == NGX_HTTP_MOVED_TEMPORARILY)) |
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430 { |
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431 return ngx_http_send_refresh(r); |
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432 } |
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433 |
633 | 434 if (error == NGX_HTTP_CREATED) { |
435 /* 201 */ | |
436 err = 0; | |
437 | |
438 } else if (error == NGX_HTTP_NO_CONTENT) { | |
511 | 439 /* 204 */ |
440 err = 0; | |
441 | |
2696 | 442 } else if (error >= NGX_HTTP_MOVED_PERMANENTLY |
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443 && error < NGX_HTTP_LAST_3XX) |
2696 | 444 { |
176
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445 /* 3XX */ |
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446 err = error - NGX_HTTP_MOVED_PERMANENTLY + NGX_HTTP_OFF_3XX; |
176
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447 |
2696 | 448 } else if (error >= NGX_HTTP_BAD_REQUEST |
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449 && error < NGX_HTTP_LAST_4XX) |
2696 | 450 { |
176
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451 /* 4XX */ |
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452 err = error - NGX_HTTP_BAD_REQUEST + NGX_HTTP_OFF_4XX; |
176
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453 |
3845
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454 } else if (error >= NGX_HTTP_NGINX_CODES |
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455 && error < NGX_HTTP_LAST_5XX) |
2696 | 456 { |
335
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457 /* 49X, 5XX */ |
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458 err = error - NGX_HTTP_NGINX_CODES + NGX_HTTP_OFF_5XX; |
335
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459 switch (error) { |
384
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460 case NGX_HTTP_TO_HTTPS: |
647 | 461 case NGX_HTTPS_CERT_ERROR: |
462 case NGX_HTTPS_NO_CERT: | |
3848
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463 case NGX_HTTP_REQUEST_HEADER_TOO_LARGE: |
679 | 464 r->err_status = NGX_HTTP_BAD_REQUEST; |
384
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465 break; |
335
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466 } |
2696 | 467 |
468 } else { | |
469 /* unknown code, zero body */ | |
470 err = 0; | |
176
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471 } |
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472 |
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473 return ngx_http_send_special_response(r, clcf, err); |
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474 } |
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475 |
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476 |
2787
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|
477 ngx_int_t |
2821
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478 ngx_http_filter_finalize_request(ngx_http_request_t *r, ngx_module_t *m, |
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479 ngx_int_t error) |
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480 { |
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481 void *ctx; |
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482 ngx_int_t rc; |
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483 |
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484 ngx_http_clean_header(r); |
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485 |
2822 | 486 ctx = NULL; |
487 | |
2821
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488 if (m) { |
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489 ctx = r->ctx[m->ctx_index]; |
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490 } |
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491 |
2787
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492 /* clear the modules contexts */ |
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493 ngx_memzero(r->ctx, sizeof(void *) * ngx_http_max_module); |
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494 |
2821
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495 if (m) { |
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496 r->ctx[m->ctx_index] = ctx; |
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497 } |
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|
498 |
2819
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499 r->filter_finalize = 1; |
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500 |
2787
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501 rc = ngx_http_special_response_handler(r, error); |
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|
502 |
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503 /* NGX_ERROR resets any pending data */ |
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|
504 |
2819
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505 switch (rc) { |
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506 |
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507 case NGX_OK: |
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508 case NGX_DONE: |
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509 return NGX_ERROR; |
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510 |
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511 default: |
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512 return rc; |
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513 } |
2787
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514 } |
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515 |
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516 |
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517 void |
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518 ngx_http_clean_header(ngx_http_request_t *r) |
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519 { |
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520 ngx_memzero(&r->headers_out.status, |
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521 sizeof(ngx_http_headers_out_t) |
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522 - offsetof(ngx_http_headers_out_t, status)); |
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|
523 |
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|
524 r->headers_out.headers.part.nelts = 0; |
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|
525 r->headers_out.headers.part.next = NULL; |
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|
526 r->headers_out.headers.last = &r->headers_out.headers.part; |
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|
527 |
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|
528 r->headers_out.content_length_n = -1; |
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|
529 r->headers_out.last_modified_time = -1; |
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530 } |
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|
531 |
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|
532 |
1604
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|
533 static ngx_int_t |
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|
534 ngx_http_send_error_page(ngx_http_request_t *r, ngx_http_err_page_t *err_page) |
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|
535 { |
2436
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|
536 ngx_int_t overwrite; |
2589
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|
537 ngx_str_t uri, args; |
1604
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|
538 ngx_table_elt_t *location; |
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|
539 ngx_http_core_loc_conf_t *clcf; |
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|
540 |
2436
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changeset
|
541 overwrite = err_page->overwrite; |
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changeset
|
542 |
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changeset
|
543 if (overwrite && overwrite != NGX_HTTP_OK) { |
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changeset
|
544 r->expect_tested = 1; |
26d9d4a41e91
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changeset
|
545 } |
26d9d4a41e91
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diff
changeset
|
546 |
3781
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3663
diff
changeset
|
547 if (overwrite >= 0) { |
173a45374a97
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changeset
|
548 r->err_status = overwrite; |
173a45374a97
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|
549 } |
1604
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|
550 |
2589
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changeset
|
551 if (ngx_http_complex_value(r, &err_page->value, &uri) != NGX_OK) { |
859f6675a553
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|
552 return NGX_ERROR; |
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553 } |
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554 |
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555 if (uri.data[0] == '/') { |
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556 |
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557 if (err_page->value.lengths) { |
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558 ngx_http_split_args(r, &uri, &args); |
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559 |
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560 } else { |
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561 args = err_page->args; |
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562 } |
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|
563 |
2192
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|
564 if (r->method != NGX_HTTP_HEAD) { |
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565 r->method = NGX_HTTP_GET; |
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566 r->method_name = ngx_http_get_name; |
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567 } |
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|
568 |
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569 return ngx_http_internal_redirect(r, &uri, &args); |
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570 } |
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571 |
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572 if (uri.data[0] == '@') { |
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573 return ngx_http_named_location(r, &uri); |
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574 } |
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575 |
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576 location = ngx_list_push(&r->headers_out.headers); |
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577 |
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578 if (location == NULL) { |
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579 return NGX_ERROR; |
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580 } |
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581 |
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582 if (overwrite != NGX_HTTP_MOVED_PERMANENTLY |
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583 && overwrite != NGX_HTTP_MOVED_TEMPORARILY |
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584 && overwrite != NGX_HTTP_SEE_OTHER |
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585 && overwrite != NGX_HTTP_TEMPORARY_REDIRECT) |
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586 { |
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587 r->err_status = NGX_HTTP_MOVED_TEMPORARILY; |
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588 } |
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589 |
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590 location->hash = 1; |
3516
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ngx_str_set() and ngx_str_null()
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591 ngx_str_set(&location->key, "Location"); |
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592 location->value = uri; |
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593 |
4206
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Clear old Location header (if any) while adding a new one.
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|
594 ngx_http_clear_location(r); |
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595 |
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596 r->headers_out.location = location; |
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597 |
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598 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
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599 |
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600 if (clcf->msie_refresh && r->headers_in.msie) { |
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601 return ngx_http_send_refresh(r); |
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602 } |
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|
603 |
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604 return ngx_http_send_special_response(r, clcf, r->err_status |
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605 - NGX_HTTP_MOVED_PERMANENTLY |
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|
606 + NGX_HTTP_OFF_3XX); |
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607 } |
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|
608 |
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609 |
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610 static ngx_int_t |
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611 ngx_http_send_special_response(ngx_http_request_t *r, |
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612 ngx_http_core_loc_conf_t *clcf, ngx_uint_t err) |
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613 { |
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614 u_char *tail; |
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615 size_t len; |
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616 ngx_int_t rc; |
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617 ngx_buf_t *b; |
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618 ngx_uint_t msie_padding; |
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619 ngx_chain_t out[3]; |
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620 |
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621 if (clcf->server_tokens) { |
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622 len = sizeof(ngx_http_error_full_tail) - 1; |
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623 tail = ngx_http_error_full_tail; |
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624 |
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|
625 } else { |
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626 len = sizeof(ngx_http_error_tail) - 1; |
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627 tail = ngx_http_error_tail; |
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628 } |
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629 |
356
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|
630 msie_padding = 0; |
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631 |
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632 if (ngx_http_error_pages[err].len) { |
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|
633 r->headers_out.content_length_n = ngx_http_error_pages[err].len + len; |
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634 if (clcf->msie_padding |
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|
635 && (r->headers_in.msie || r->headers_in.chrome) |
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|
636 && r->http_version >= NGX_HTTP_VERSION_10 |
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|
637 && err >= NGX_HTTP_OFF_4XX) |
3663
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638 { |
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|
639 r->headers_out.content_length_n += |
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640 sizeof(ngx_http_msie_padding) - 1; |
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|
641 msie_padding = 1; |
331
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nginx-0.0.3-2004-05-04-21:56:58 import
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diff
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|
642 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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diff
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|
643 |
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|
644 r->headers_out.content_type_len = sizeof("text/html") - 1; |
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645 ngx_str_set(&r->headers_out.content_type, "text/html"); |
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646 r->headers_out.content_type_lowcase = NULL; |
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|
647 |
68
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diff
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|
648 } else { |
4146
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Fix for incorrect 201 replies from dav module.
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|
649 r->headers_out.content_length_n = 0; |
165
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650 } |
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651 |
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652 if (r->headers_out.content_length) { |
509 | 653 r->headers_out.content_length->hash = 0; |
153
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|
654 r->headers_out.content_length = NULL; |
68
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|
655 } |
24
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|
656 |
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657 ngx_http_clear_accept_ranges(r); |
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658 ngx_http_clear_last_modified(r); |
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659 |
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660 rc = ngx_http_send_header(r); |
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661 |
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662 if (rc == NGX_ERROR || r->header_only) { |
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663 return rc; |
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664 } |
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665 |
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666 if (ngx_http_error_pages[err].len == 0) { |
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|
667 return ngx_http_send_special(r, NGX_HTTP_LAST); |
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668 } |
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|
669 |
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670 b = ngx_calloc_buf(r->pool); |
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671 if (b == NULL) { |
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672 return NGX_ERROR; |
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|
673 } |
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|
674 |
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|
675 b->memory = 1; |
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676 b->pos = ngx_http_error_pages[err].data; |
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677 b->last = ngx_http_error_pages[err].data + ngx_http_error_pages[err].len; |
1298
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|
678 |
1604
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679 out[0].buf = b; |
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680 out[0].next = &out[1]; |
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|
681 |
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|
682 b = ngx_calloc_buf(r->pool); |
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683 if (b == NULL) { |
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684 return NGX_ERROR; |
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|
685 } |
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|
686 |
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687 b->memory = 1; |
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|
688 |
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689 b->pos = tail; |
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690 b->last = tail + len; |
1298
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|
691 |
1604
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|
692 out[1].buf = b; |
2024 | 693 out[1].next = NULL; |
1604
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|
694 |
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|
695 if (msie_padding) { |
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696 b = ngx_calloc_buf(r->pool); |
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697 if (b == NULL) { |
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|
698 return NGX_ERROR; |
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|
699 } |
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|
700 |
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changeset
|
701 b->memory = 1; |
3316
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parents:
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changeset
|
702 b->pos = ngx_http_msie_padding; |
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|
703 b->last = ngx_http_msie_padding + sizeof(ngx_http_msie_padding) - 1; |
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|
704 |
1604
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|
705 out[1].next = &out[2]; |
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|
706 out[2].buf = b; |
2024 | 707 out[2].next = NULL; |
1604
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|
708 } |
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|
709 |
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710 if (r == r->main) { |
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711 b->last_buf = 1; |
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|
712 } |
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|
713 |
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|
714 b->last_in_chain = 1; |
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|
715 |
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716 return ngx_http_output_filter(r, &out[0]); |
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717 } |
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718 |
679 | 719 |
1604
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720 static ngx_int_t |
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721 ngx_http_send_refresh(ngx_http_request_t *r) |
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722 { |
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|
723 u_char *p, *location; |
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|
724 size_t len, size; |
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|
725 uintptr_t escape; |
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|
726 ngx_int_t rc; |
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|
727 ngx_buf_t *b; |
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|
728 ngx_chain_t out; |
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|
729 |
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|
730 len = r->headers_out.location->value.len; |
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|
731 location = r->headers_out.location->value.data; |
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|
732 |
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|
733 escape = 2 * ngx_escape_uri(NULL, location, len, NGX_ESCAPE_REFRESH); |
1298
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|
734 |
1604
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|
735 size = sizeof(ngx_http_msie_refresh_head) - 1 |
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|
736 + escape + len |
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Igor Sysoev <igor@sysoev.ru>
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|
737 + sizeof(ngx_http_msie_refresh_tail) - 1; |
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|
738 |
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|
739 r->err_status = NGX_HTTP_OK; |
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|
740 |
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changeset
|
741 r->headers_out.content_type_len = sizeof("text/html") - 1; |
3516
dd1570b6f237
ngx_str_set() and ngx_str_null()
Igor Sysoev <igor@sysoev.ru>
parents:
3316
diff
changeset
|
742 ngx_str_set(&r->headers_out.content_type, "text/html"); |
2882
896db5a09bd2
reset content_type hash value, this fixes a bug when XSLT responses
Igor Sysoev <igor@sysoev.ru>
parents:
2822
diff
changeset
|
743 r->headers_out.content_type_lowcase = NULL; |
1604
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|
744 |
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diff
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|
745 r->headers_out.location->hash = 0; |
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|
746 r->headers_out.location = NULL; |
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diff
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|
747 |
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|
748 r->headers_out.content_length_n = size; |
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diff
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|
749 |
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changeset
|
750 if (r->headers_out.content_length) { |
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divide special response handling into several functions
Igor Sysoev <igor@sysoev.ru>
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changeset
|
751 r->headers_out.content_length->hash = 0; |
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|
752 r->headers_out.content_length = NULL; |
679 | 753 } |
754 | |
577 | 755 ngx_http_clear_accept_ranges(r); |
756 ngx_http_clear_last_modified(r); | |
757 | |
103
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99
diff
changeset
|
758 rc = ngx_http_send_header(r); |
142
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diff
changeset
|
759 |
143
5526213be452
nginx-0.0.1-2003-10-10-19:10:50 import
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parents:
142
diff
changeset
|
760 if (rc == NGX_ERROR || r->header_only) { |
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parents:
142
diff
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|
761 return rc; |
103
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diff
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|
762 } |
6dfda4cf5200
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99
diff
changeset
|
763 |
1604
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divide special response handling into several functions
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diff
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|
764 b = ngx_create_temp_buf(r->pool, size); |
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|
765 if (b == NULL) { |
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|
766 return NGX_ERROR; |
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diff
changeset
|
767 } |
1592 | 768 |
1604
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Igor Sysoev <igor@sysoev.ru>
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|
769 p = ngx_cpymem(b->pos, ngx_http_msie_refresh_head, |
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changeset
|
770 sizeof(ngx_http_msie_refresh_head) - 1); |
679 | 771 |
1604
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divide special response handling into several functions
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|
772 if (escape == 0) { |
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Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
773 p = ngx_cpymem(p, location, len); |
679 | 774 |
775 } else { | |
1604
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Igor Sysoev <igor@sysoev.ru>
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diff
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|
776 p = (u_char *) ngx_escape_uri(p, location, len, NGX_ESCAPE_REFRESH); |
103
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parents:
99
diff
changeset
|
777 } |
6dfda4cf5200
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parents:
99
diff
changeset
|
778 |
1604
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diff
changeset
|
779 b->last = ngx_cpymem(p, ngx_http_msie_refresh_tail, |
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Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
780 sizeof(ngx_http_msie_refresh_tail) - 1); |
509 | 781 |
1604
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Igor Sysoev <igor@sysoev.ru>
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changeset
|
782 b->last_buf = 1; |
509 | 783 b->last_in_chain = 1; |
103
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diff
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|
784 |
1604
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|
785 out.buf = b; |
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Igor Sysoev <igor@sysoev.ru>
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changeset
|
786 out.next = NULL; |
501 | 787 |
1604
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Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
788 return ngx_http_output_filter(r, &out); |
24
77c7629a2627
nginx-0.0.1-2002-12-10-21:05:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
789 } |