Mercurial > hg > nginx
annotate src/http/modules/ngx_http_headers_filter_module.c @ 4253:6efec8b1ff52 stable-1.0
Merging r4193, r4194:
Autoindex fixes:
*) Autoindex: escape '?' in file names.
For files with '?' in their names autoindex generated links with '?' not
escaped. This resulted in effectively truncated links as '?' indicates
query string start.
This is an updated version of the patch originally posted at [1]. It
introduces generic NGX_ESCAPE_URI_COMPONENT which escapes everything but
unreserved characters as per RFC 3986. This approach also renders unneeded
special colon processing (as colon is percent-encoded now), it's dropped
accordingly.
[1] http://nginx.org/pipermail/nginx-devel/2010-February/000112.html
*) Autoindex: escape html in file names.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 01 Nov 2011 14:09:15 +0000 |
parents | d3568507db51 |
children | ecf4608c2783 ea0f2e1f84d4 |
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 |
441
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4 */ |
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5 |
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6 |
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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 |
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11 |
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12 typedef struct ngx_http_header_val_s ngx_http_header_val_t; |
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13 |
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14 typedef ngx_int_t (*ngx_http_set_header_pt)(ngx_http_request_t *r, |
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15 ngx_http_header_val_t *hv, ngx_str_t *value); |
625 | 16 |
17 | |
18 typedef struct { | |
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19 ngx_str_t name; |
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20 ngx_uint_t offset; |
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21 ngx_http_set_header_pt handler; |
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22 } ngx_http_set_header_t; |
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23 |
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24 |
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25 struct ngx_http_header_val_s { |
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26 ngx_http_complex_value_t value; |
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27 ngx_uint_t hash; |
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28 ngx_str_t key; |
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29 ngx_http_set_header_pt handler; |
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30 ngx_uint_t offset; |
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31 }; |
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32 |
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33 |
2013 | 34 #define NGX_HTTP_EXPIRES_OFF 0 |
35 #define NGX_HTTP_EXPIRES_EPOCH 1 | |
36 #define NGX_HTTP_EXPIRES_MAX 2 | |
37 #define NGX_HTTP_EXPIRES_ACCESS 3 | |
38 #define NGX_HTTP_EXPIRES_MODIFIED 4 | |
2163 | 39 #define NGX_HTTP_EXPIRES_DAILY 5 |
2013 | 40 |
41 | |
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42 typedef struct { |
2013 | 43 ngx_uint_t expires; |
44 time_t expires_time; | |
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45 ngx_array_t *headers; |
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46 } ngx_http_headers_conf_t; |
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47 |
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48 |
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49 static ngx_int_t ngx_http_set_expires(ngx_http_request_t *r, |
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50 ngx_http_headers_conf_t *conf); |
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51 static ngx_int_t ngx_http_add_cache_control(ngx_http_request_t *r, |
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52 ngx_http_header_val_t *hv, ngx_str_t *value); |
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53 static ngx_int_t ngx_http_set_last_modified(ngx_http_request_t *r, |
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54 ngx_http_header_val_t *hv, ngx_str_t *value); |
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55 |
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56 static void *ngx_http_headers_create_conf(ngx_conf_t *cf); |
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57 static char *ngx_http_headers_merge_conf(ngx_conf_t *cf, |
573 | 58 void *parent, void *child); |
681 | 59 static ngx_int_t ngx_http_headers_filter_init(ngx_conf_t *cf); |
501 | 60 static char *ngx_http_headers_expires(ngx_conf_t *cf, ngx_command_t *cmd, |
61 void *conf); | |
573 | 62 static char *ngx_http_headers_add(ngx_conf_t *cf, ngx_command_t *cmd, |
63 void *conf); | |
326
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64 |
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65 |
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66 static ngx_http_set_header_t ngx_http_set_headers[] = { |
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67 |
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68 { ngx_string("Cache-Control"), 0, ngx_http_add_cache_control }, |
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69 |
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70 { ngx_string("Last-Modified"), |
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71 offsetof(ngx_http_headers_out_t, last_modified), |
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72 ngx_http_set_last_modified }, |
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73 |
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74 { ngx_null_string, 0, NULL } |
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75 }; |
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76 |
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77 |
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78 static ngx_command_t ngx_http_headers_filter_commands[] = { |
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79 |
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80 { ngx_string("expires"), |
573 | 81 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF |
2013 | 82 |NGX_CONF_TAKE12, |
326
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83 ngx_http_headers_expires, |
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84 NGX_HTTP_LOC_CONF_OFFSET, |
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85 0, |
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86 NULL}, |
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87 |
573 | 88 { ngx_string("add_header"), |
89 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF | |
90 |NGX_CONF_TAKE2, | |
91 ngx_http_headers_add, | |
92 NGX_HTTP_LOC_CONF_OFFSET, | |
93 0, | |
94 NULL}, | |
95 | |
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96 ngx_null_command |
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97 }; |
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98 |
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99 |
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100 static ngx_http_module_t ngx_http_headers_filter_module_ctx = { |
509 | 101 NULL, /* preconfiguration */ |
681 | 102 ngx_http_headers_filter_init, /* postconfiguration */ |
326
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103 |
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104 NULL, /* create main configuration */ |
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105 NULL, /* init main configuration */ |
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106 |
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107 NULL, /* create server configuration */ |
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108 NULL, /* merge server configuration */ |
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109 |
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110 ngx_http_headers_create_conf, /* create location configuration */ |
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111 ngx_http_headers_merge_conf /* merge location configuration */ |
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112 }; |
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113 |
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114 |
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115 ngx_module_t ngx_http_headers_filter_module = { |
509 | 116 NGX_MODULE_V1, |
326
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117 &ngx_http_headers_filter_module_ctx, /* module context */ |
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118 ngx_http_headers_filter_commands, /* module directives */ |
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119 NGX_HTTP_MODULE, /* module type */ |
541 | 120 NULL, /* init master */ |
681 | 121 NULL, /* init module */ |
541 | 122 NULL, /* init process */ |
123 NULL, /* init thread */ | |
124 NULL, /* exit thread */ | |
125 NULL, /* exit process */ | |
126 NULL, /* exit master */ | |
127 NGX_MODULE_V1_PADDING | |
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128 }; |
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129 |
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130 |
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131 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; |
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132 |
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133 |
501 | 134 static ngx_int_t |
135 ngx_http_headers_filter(ngx_http_request_t *r) | |
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136 { |
1364 | 137 ngx_str_t value; |
509 | 138 ngx_uint_t i; |
625 | 139 ngx_http_header_val_t *h; |
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140 ngx_http_headers_conf_t *conf; |
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141 |
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142 conf = ngx_http_get_module_loc_conf(r, ngx_http_headers_filter_module); |
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143 |
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144 if ((conf->expires == NGX_HTTP_EXPIRES_OFF && conf->headers == NULL) |
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145 || r != r->main |
663 | 146 || (r->headers_out.status != NGX_HTTP_OK |
147 && r->headers_out.status != NGX_HTTP_NO_CONTENT | |
148 && r->headers_out.status != NGX_HTTP_MOVED_PERMANENTLY | |
149 && r->headers_out.status != NGX_HTTP_MOVED_TEMPORARILY | |
150 && r->headers_out.status != NGX_HTTP_NOT_MODIFIED)) | |
543 | 151 { |
326
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152 return ngx_http_next_header_filter(r); |
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153 } |
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154 |
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155 if (conf->expires != NGX_HTTP_EXPIRES_OFF) { |
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156 if (ngx_http_set_expires(r, conf) != NGX_OK) { |
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157 return NGX_ERROR; |
326
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158 } |
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159 } |
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160 |
573 | 161 if (conf->headers) { |
162 h = conf->headers->elts; | |
163 for (i = 0; i < conf->headers->nelts; i++) { | |
625 | 164 |
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165 if (ngx_http_complex_value(r, &h[i].value, &value) != NGX_OK) { |
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166 return NGX_ERROR; |
625 | 167 } |
168 | |
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169 if (h[i].handler(r, &h[i], &value) != NGX_OK) { |
625 | 170 return NGX_ERROR; |
171 } | |
573 | 172 } |
173 } | |
174 | |
326
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175 return ngx_http_next_header_filter(r); |
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176 } |
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177 |
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178 |
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179 static ngx_int_t |
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180 ngx_http_set_expires(ngx_http_request_t *r, ngx_http_headers_conf_t *conf) |
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181 { |
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182 size_t len; |
2163 | 183 time_t now, expires_time, max_age; |
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184 ngx_uint_t i; |
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185 ngx_table_elt_t *expires, *cc, **ccp; |
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186 |
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187 expires = r->headers_out.expires; |
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188 |
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189 if (expires == NULL) { |
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190 |
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191 expires = ngx_list_push(&r->headers_out.headers); |
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192 if (expires == NULL) { |
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193 return NGX_ERROR; |
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194 } |
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195 |
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196 r->headers_out.expires = expires; |
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197 |
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198 expires->hash = 1; |
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199 ngx_str_set(&expires->key, "Expires"); |
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200 } |
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201 |
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202 len = sizeof("Mon, 28 Sep 1970 06:00:00 GMT"); |
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203 expires->value.len = len - 1; |
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204 |
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205 ccp = r->headers_out.cache_control.elts; |
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206 |
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207 if (ccp == NULL) { |
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208 |
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209 if (ngx_array_init(&r->headers_out.cache_control, r->pool, |
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210 1, sizeof(ngx_table_elt_t *)) |
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211 != NGX_OK) |
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212 { |
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213 return NGX_ERROR; |
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214 } |
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215 |
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216 ccp = ngx_array_push(&r->headers_out.cache_control); |
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217 if (ccp == NULL) { |
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218 return NGX_ERROR; |
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219 } |
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220 |
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221 cc = ngx_list_push(&r->headers_out.headers); |
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222 if (cc == NULL) { |
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223 return NGX_ERROR; |
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224 } |
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225 |
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226 cc->hash = 1; |
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227 ngx_str_set(&cc->key, "Cache-Control"); |
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228 *ccp = cc; |
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229 |
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230 } else { |
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231 for (i = 1; i < r->headers_out.cache_control.nelts; i++) { |
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232 ccp[i]->hash = 0; |
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233 } |
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234 |
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235 cc = ccp[0]; |
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236 } |
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237 |
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238 if (conf->expires == NGX_HTTP_EXPIRES_EPOCH) { |
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239 expires->value.data = (u_char *) "Thu, 01 Jan 1970 00:00:01 GMT"; |
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240 ngx_str_set(&cc->value, "no-cache"); |
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241 return NGX_OK; |
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242 } |
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243 |
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244 if (conf->expires == NGX_HTTP_EXPIRES_MAX) { |
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245 expires->value.data = (u_char *) "Thu, 31 Dec 2037 23:55:55 GMT"; |
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246 /* 10 years */ |
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247 ngx_str_set(&cc->value, "max-age=315360000"); |
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248 return NGX_OK; |
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249 } |
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250 |
2049 | 251 expires->value.data = ngx_pnalloc(r->pool, len); |
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252 if (expires->value.data == NULL) { |
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253 return NGX_ERROR; |
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254 } |
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255 |
2013 | 256 if (conf->expires_time == 0) { |
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257 ngx_memcpy(expires->value.data, ngx_cached_http_time.data, |
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258 ngx_cached_http_time.len + 1); |
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259 ngx_str_set(&cc->value, "max-age=0"); |
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260 return NGX_OK; |
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261 } |
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262 |
2163 | 263 now = ngx_time(); |
264 | |
2013 | 265 if (conf->expires == NGX_HTTP_EXPIRES_ACCESS |
266 || r->headers_out.last_modified_time == -1) | |
267 { | |
2163 | 268 expires_time = now + conf->expires_time; |
269 max_age = conf->expires_time; | |
270 | |
271 } else if (conf->expires == NGX_HTTP_EXPIRES_DAILY) { | |
272 expires_time = ngx_next_time(conf->expires_time); | |
273 max_age = expires_time - now; | |
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274 |
2013 | 275 } else { |
2163 | 276 expires_time = r->headers_out.last_modified_time + conf->expires_time; |
277 max_age = expires_time - now; | |
2013 | 278 } |
279 | |
2163 | 280 ngx_http_time(expires->value.data, expires_time); |
2013 | 281 |
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282 if (conf->expires_time < 0 || max_age < 0) { |
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283 ngx_str_set(&cc->value, "no-cache"); |
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284 return NGX_OK; |
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285 } |
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286 |
2049 | 287 cc->value.data = ngx_pnalloc(r->pool, |
288 sizeof("max-age=") + NGX_TIME_T_LEN + 1); | |
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289 if (cc->value.data == NULL) { |
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290 return NGX_ERROR; |
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291 } |
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292 |
2163 | 293 cc->value.len = ngx_sprintf(cc->value.data, "max-age=%T", max_age) |
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294 - cc->value.data; |
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295 |
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296 return NGX_OK; |
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297 } |
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298 |
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299 |
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300 static ngx_int_t |
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301 ngx_http_add_header(ngx_http_request_t *r, ngx_http_header_val_t *hv, |
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302 ngx_str_t *value) |
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303 { |
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304 ngx_table_elt_t *h; |
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305 |
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306 if (value->len) { |
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307 h = ngx_list_push(&r->headers_out.headers); |
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308 if (h == NULL) { |
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309 return NGX_ERROR; |
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310 } |
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311 |
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312 h->hash = hv->hash; |
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313 h->key = hv->key; |
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314 h->value = *value; |
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315 } |
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316 |
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317 return NGX_OK; |
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318 } |
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319 |
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320 |
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321 static ngx_int_t |
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322 ngx_http_add_cache_control(ngx_http_request_t *r, ngx_http_header_val_t *hv, |
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323 ngx_str_t *value) |
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324 { |
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325 ngx_table_elt_t *cc, **ccp; |
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326 |
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327 ccp = r->headers_out.cache_control.elts; |
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328 |
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329 if (ccp == NULL) { |
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330 |
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331 if (ngx_array_init(&r->headers_out.cache_control, r->pool, |
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332 1, sizeof(ngx_table_elt_t *)) |
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333 != NGX_OK) |
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334 { |
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335 return NGX_ERROR; |
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336 } |
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337 } |
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338 |
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339 ccp = ngx_array_push(&r->headers_out.cache_control); |
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340 if (ccp == NULL) { |
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341 return NGX_ERROR; |
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342 } |
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343 |
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344 cc = ngx_list_push(&r->headers_out.headers); |
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345 if (cc == NULL) { |
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346 return NGX_ERROR; |
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347 } |
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348 |
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349 cc->hash = 1; |
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350 ngx_str_set(&cc->key, "Cache-Control"); |
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351 cc->value = *value; |
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352 |
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353 *ccp = cc; |
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354 |
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355 return NGX_OK; |
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356 } |
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357 |
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358 |
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359 static ngx_int_t |
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360 ngx_http_set_last_modified(ngx_http_request_t *r, ngx_http_header_val_t *hv, |
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361 ngx_str_t *value) |
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362 { |
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363 ngx_table_elt_t *h, **old; |
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364 |
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365 if (hv->offset) { |
1364 | 366 old = (ngx_table_elt_t **) ((char *) &r->headers_out + hv->offset); |
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367 |
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368 } else { |
1364 | 369 old = NULL; |
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370 } |
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371 |
1655 | 372 r->headers_out.last_modified_time = -1; |
373 | |
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374 if (old == NULL || *old == NULL) { |
1655 | 375 |
376 if (value->len == 0) { | |
377 return NGX_OK; | |
378 } | |
379 | |
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380 h = ngx_list_push(&r->headers_out.headers); |
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381 if (h == NULL) { |
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382 return NGX_ERROR; |
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383 } |
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384 |
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385 } else { |
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386 h = *old; |
1655 | 387 |
388 if (value->len == 0) { | |
389 h->hash = 0; | |
390 return NGX_OK; | |
391 } | |
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392 } |
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393 |
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394 h->hash = hv->hash; |
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395 h->key = hv->key; |
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396 h->value = *value; |
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397 |
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398 return NGX_OK; |
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399 } |
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400 |
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401 |
501 | 402 static void * |
403 ngx_http_headers_create_conf(ngx_conf_t *cf) | |
577 | 404 { |
326
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405 ngx_http_headers_conf_t *conf; |
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406 |
573 | 407 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_headers_conf_t)); |
501 | 408 if (conf == NULL) { |
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409 return NULL; |
326
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410 } |
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411 |
573 | 412 /* |
413 * set by ngx_pcalloc(): | |
414 * | |
415 * conf->headers = NULL; | |
2013 | 416 * conf->expires_time = 0; |
573 | 417 */ |
418 | |
2013 | 419 conf->expires = NGX_CONF_UNSET_UINT; |
326
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420 |
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421 return conf; |
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422 } |
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423 |
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424 |
501 | 425 static char * |
426 ngx_http_headers_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
326
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427 { |
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428 ngx_http_headers_conf_t *prev = parent; |
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429 ngx_http_headers_conf_t *conf = child; |
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430 |
2013 | 431 if (conf->expires == NGX_CONF_UNSET_UINT) { |
432 conf->expires = prev->expires; | |
433 conf->expires_time = prev->expires_time; | |
434 | |
435 if (conf->expires == NGX_CONF_UNSET_UINT) { | |
436 conf->expires = NGX_HTTP_EXPIRES_OFF; | |
437 } | |
326
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438 } |
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nginx-0.0.3-2004-04-26-00:13:21 import
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439 |
573 | 440 if (conf->headers == NULL) { |
441 conf->headers = prev->headers; | |
442 } | |
443 | |
326
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444 return NGX_CONF_OK; |
8733703a37f3
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445 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
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446 |
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447 |
681 | 448 static ngx_int_t |
449 ngx_http_headers_filter_init(ngx_conf_t *cf) | |
450 { | |
451 ngx_http_next_header_filter = ngx_http_top_header_filter; | |
452 ngx_http_top_header_filter = ngx_http_headers_filter; | |
453 | |
454 return NGX_OK; | |
455 } | |
456 | |
457 | |
501 | 458 static char * |
459 ngx_http_headers_expires(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
326
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nginx-0.0.3-2004-04-26-00:13:21 import
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460 { |
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461 ngx_http_headers_conf_t *hcf = conf; |
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462 |
2013 | 463 ngx_uint_t minus, n; |
326
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464 ngx_str_t *value; |
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465 |
2013 | 466 if (hcf->expires != NGX_CONF_UNSET_UINT) { |
326
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467 return "is duplicate"; |
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468 } |
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469 |
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470 value = cf->args->elts; |
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471 |
2013 | 472 if (cf->args->nelts == 2) { |
473 | |
474 if (ngx_strcmp(value[1].data, "epoch") == 0) { | |
475 hcf->expires = NGX_HTTP_EXPIRES_EPOCH; | |
476 return NGX_CONF_OK; | |
477 } | |
478 | |
479 if (ngx_strcmp(value[1].data, "max") == 0) { | |
480 hcf->expires = NGX_HTTP_EXPIRES_MAX; | |
481 return NGX_CONF_OK; | |
482 } | |
326
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483 |
2013 | 484 if (ngx_strcmp(value[1].data, "off") == 0) { |
485 hcf->expires = NGX_HTTP_EXPIRES_OFF; | |
486 return NGX_CONF_OK; | |
487 } | |
488 | |
489 hcf->expires = NGX_HTTP_EXPIRES_ACCESS; | |
490 | |
491 n = 1; | |
492 | |
493 } else { /* cf->args->nelts == 3 */ | |
494 | |
495 if (ngx_strcmp(value[1].data, "modified") != 0) { | |
496 return "invalid value"; | |
497 } | |
498 | |
499 hcf->expires = NGX_HTTP_EXPIRES_MODIFIED; | |
500 | |
501 n = 2; | |
729 | 502 } |
503 | |
2163 | 504 if (value[n].data[0] == '@') { |
505 value[n].data++; | |
506 value[n].len--; | |
507 minus = 0; | |
508 | |
509 if (hcf->expires == NGX_HTTP_EXPIRES_MODIFIED) { | |
4246
d3568507db51
Merging r4132, r4134, r4143, r4183, r4191, r4199:
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510 return "daily time cannot be used with \"modified\" parameter"; |
2163 | 511 } |
512 | |
513 hcf->expires = NGX_HTTP_EXPIRES_DAILY; | |
514 | |
515 } else if (value[n].data[0] == '+') { | |
2013 | 516 value[n].data++; |
517 value[n].len--; | |
326
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518 minus = 0; |
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519 |
2013 | 520 } else if (value[n].data[0] == '-') { |
521 value[n].data++; | |
522 value[n].len--; | |
326
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523 minus = 1; |
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524 |
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525 } else { |
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526 minus = 0; |
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527 } |
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528 |
2013 | 529 hcf->expires_time = ngx_parse_time(&value[n], 1); |
501 | 530 |
2013 | 531 if (hcf->expires_time == NGX_ERROR) { |
326
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532 return "invalid value"; |
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533 } |
577 | 534 |
2164 | 535 if (hcf->expires == NGX_HTTP_EXPIRES_DAILY |
536 && hcf->expires_time > 24 * 60 * 60) | |
537 { | |
538 return "daily time value must be less than 24 hours"; | |
539 } | |
540 | |
2013 | 541 if (hcf->expires_time == NGX_PARSE_LARGE_TIME) { |
326
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542 return "value must be less than 68 years"; |
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543 } |
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544 |
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545 if (minus) { |
2013 | 546 hcf->expires_time = - hcf->expires_time; |
326
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547 } |
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548 |
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549 return NGX_CONF_OK; |
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550 } |
573 | 551 |
552 | |
553 static char * | |
554 ngx_http_headers_add(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
555 { | |
556 ngx_http_headers_conf_t *hcf = conf; | |
557 | |
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558 ngx_str_t *value; |
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559 ngx_uint_t i; |
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560 ngx_http_header_val_t *hv; |
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561 ngx_http_set_header_t *set; |
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562 ngx_http_compile_complex_value_t ccv; |
573 | 563 |
564 value = cf->args->elts; | |
565 | |
566 if (hcf->headers == NULL) { | |
625 | 567 hcf->headers = ngx_array_create(cf->pool, 1, |
568 sizeof(ngx_http_header_val_t)); | |
573 | 569 if (hcf->headers == NULL) { |
570 return NGX_CONF_ERROR; | |
571 } | |
572 } | |
573 | |
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574 hv = ngx_array_push(hcf->headers); |
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575 if (hv == NULL) { |
573 | 576 return NGX_CONF_ERROR; |
577 } | |
578 | |
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579 hv->hash = 1; |
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580 hv->key = value[1]; |
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581 hv->handler = ngx_http_add_header; |
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582 hv->offset = 0; |
625 | 583 |
2588
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584 set = ngx_http_set_headers; |
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585 for (i = 0; set[i].name.len; i++) { |
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586 if (ngx_strcasecmp(value[1].data, set[i].name.data) != 0) { |
1363
b0e114fb3bdc
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587 continue; |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
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|
588 } |
b0e114fb3bdc
use header specific handler in add_handler,
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diff
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|
589 |
2588
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590 hv->offset = set[i].offset; |
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591 hv->handler = set[i].handler; |
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592 |
1363
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593 break; |
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use header specific handler in add_handler,
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|
594 } |
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use header specific handler in add_handler,
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|
595 |
2605
2a301c21256a
fix add_header Last-Modified "", broken in r2589
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|
596 if (value[2].len == 0) { |
2a301c21256a
fix add_header Last-Modified "", broken in r2589
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|
597 ngx_memzero(&hv->value, sizeof(ngx_http_complex_value_t)); |
2a301c21256a
fix add_header Last-Modified "", broken in r2589
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598 return NGX_CONF_OK; |
2a301c21256a
fix add_header Last-Modified "", broken in r2589
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|
599 } |
2a301c21256a
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parents:
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diff
changeset
|
600 |
2588
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601 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); |
625 | 602 |
2588
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|
603 ccv.cf = cf; |
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604 ccv.value = &value[2]; |
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605 ccv.complex_value = &hv->value; |
625 | 606 |
2588
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607 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { |
625 | 608 return NGX_CONF_ERROR; |
609 } | |
573 | 610 |
611 return NGX_CONF_OK; | |
612 } |