Mercurial > hg > nginx
annotate src/http/modules/ngx_http_headers_filter_module.c @ 1364:b7a8c9fe2337
style fix
author | Igor Sysoev <igor@sysoev.ru> |
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date | Wed, 01 Aug 2007 14:22:12 +0000 |
parents | b0e114fb3bdc |
children | d1dc7ef7c3ce |
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_table_elt_t value; |
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27 ngx_uint_t offset; |
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28 ngx_http_set_header_pt handler; |
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29 ngx_array_t *lengths; |
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30 ngx_array_t *values; |
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31 }; |
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32 |
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33 |
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34 typedef struct { |
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35 time_t expires; |
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36 ngx_str_t cache_control; |
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37 ngx_array_t *headers; |
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38 } ngx_http_headers_conf_t; |
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39 |
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40 |
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41 #define NGX_HTTP_EXPIRES_UNSET -2147483647 |
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42 #define NGX_HTTP_EXPIRES_OFF -2147483646 |
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43 #define NGX_HTTP_EXPIRES_EPOCH -2147483645 |
729 | 44 #define NGX_HTTP_EXPIRES_MAX -2147483644 |
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45 |
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46 |
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47 static ngx_int_t ngx_http_add_header(ngx_http_request_t *r, |
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48 ngx_http_header_val_t *hv, ngx_str_t *value); |
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49 static ngx_int_t ngx_http_set_last_modified(ngx_http_request_t *r, |
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50 ngx_http_header_val_t *hv, ngx_str_t *value); |
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51 |
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52 static void *ngx_http_headers_create_conf(ngx_conf_t *cf); |
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53 static char *ngx_http_headers_merge_conf(ngx_conf_t *cf, |
573 | 54 void *parent, void *child); |
681 | 55 static ngx_int_t ngx_http_headers_filter_init(ngx_conf_t *cf); |
501 | 56 static char *ngx_http_headers_expires(ngx_conf_t *cf, ngx_command_t *cmd, |
57 void *conf); | |
573 | 58 static char *ngx_http_headers_add(ngx_conf_t *cf, ngx_command_t *cmd, |
59 void *conf); | |
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60 |
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61 |
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62 static ngx_http_set_header_t ngx_http_set_headers[] = { |
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63 |
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64 { ngx_string("Last-Modified"), |
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65 offsetof(ngx_http_headers_out_t, last_modified), |
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66 ngx_http_set_last_modified }, |
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67 |
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68 { ngx_null_string, 0, NULL } |
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69 }; |
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70 |
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71 |
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72 static ngx_command_t ngx_http_headers_filter_commands[] = { |
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73 |
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74 { ngx_string("expires"), |
573 | 75 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF |
76 |NGX_CONF_TAKE1, | |
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77 ngx_http_headers_expires, |
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78 NGX_HTTP_LOC_CONF_OFFSET, |
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79 0, |
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80 NULL}, |
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81 |
573 | 82 { ngx_string("add_header"), |
83 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF | |
84 |NGX_CONF_TAKE2, | |
85 ngx_http_headers_add, | |
86 NGX_HTTP_LOC_CONF_OFFSET, | |
87 0, | |
88 NULL}, | |
89 | |
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90 ngx_null_command |
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91 }; |
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92 |
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93 |
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94 static ngx_http_module_t ngx_http_headers_filter_module_ctx = { |
509 | 95 NULL, /* preconfiguration */ |
681 | 96 ngx_http_headers_filter_init, /* postconfiguration */ |
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97 |
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98 NULL, /* create main configuration */ |
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99 NULL, /* init main configuration */ |
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100 |
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101 NULL, /* create server configuration */ |
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102 NULL, /* merge server configuration */ |
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103 |
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104 ngx_http_headers_create_conf, /* create location configuration */ |
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105 ngx_http_headers_merge_conf /* merge location configuration */ |
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106 }; |
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107 |
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108 |
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109 ngx_module_t ngx_http_headers_filter_module = { |
509 | 110 NGX_MODULE_V1, |
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111 &ngx_http_headers_filter_module_ctx, /* module context */ |
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112 ngx_http_headers_filter_commands, /* module directives */ |
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113 NGX_HTTP_MODULE, /* module type */ |
541 | 114 NULL, /* init master */ |
681 | 115 NULL, /* init module */ |
541 | 116 NULL, /* init process */ |
117 NULL, /* init thread */ | |
118 NULL, /* exit thread */ | |
119 NULL, /* exit process */ | |
120 NULL, /* exit master */ | |
121 NGX_MODULE_V1_PADDING | |
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122 }; |
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123 |
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124 |
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125 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; |
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126 |
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127 |
501 | 128 static ngx_int_t |
129 ngx_http_headers_filter(ngx_http_request_t *r) | |
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130 { |
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131 size_t len; |
1364 | 132 ngx_str_t value; |
509 | 133 ngx_uint_t i; |
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134 ngx_table_elt_t *expires, *cc, **ccp; |
625 | 135 ngx_http_header_val_t *h; |
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136 ngx_http_headers_conf_t *conf; |
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137 |
663 | 138 if (r != r->main |
139 || (r->headers_out.status != NGX_HTTP_OK | |
140 && r->headers_out.status != NGX_HTTP_NO_CONTENT | |
141 && r->headers_out.status != NGX_HTTP_MOVED_PERMANENTLY | |
142 && r->headers_out.status != NGX_HTTP_MOVED_TEMPORARILY | |
143 && r->headers_out.status != NGX_HTTP_NOT_MODIFIED)) | |
543 | 144 { |
326
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145 return ngx_http_next_header_filter(r); |
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146 } |
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147 |
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148 conf = ngx_http_get_module_loc_conf(r, ngx_http_headers_filter_module); |
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149 |
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150 if (conf->expires != NGX_HTTP_EXPIRES_OFF) { |
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151 |
509 | 152 expires = r->headers_out.expires; |
153 | |
501 | 154 if (expires == NULL) { |
509 | 155 |
156 expires = ngx_list_push(&r->headers_out.headers); | |
157 if (expires == NULL) { | |
158 return NGX_ERROR; | |
159 } | |
160 | |
161 r->headers_out.expires = expires; | |
162 | |
163 expires->hash = 1; | |
164 expires->key.len = sizeof("Expires") - 1; | |
165 expires->key.data = (u_char *) "Expires"; | |
326
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166 } |
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167 |
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168 len = sizeof("Mon, 28 Sep 1970 06:00:00 GMT"); |
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169 expires->value.len = len - 1; |
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170 |
537 | 171 ccp = r->headers_out.cache_control.elts; |
172 | |
173 if (ccp == NULL) { | |
509 | 174 |
537 | 175 if (ngx_array_init(&r->headers_out.cache_control, r->pool, |
573 | 176 1, sizeof(ngx_table_elt_t *)) |
177 != NGX_OK) | |
537 | 178 { |
179 return NGX_ERROR; | |
180 } | |
181 | |
182 ccp = ngx_array_push(&r->headers_out.cache_control); | |
183 if (ccp == NULL) { | |
184 return NGX_ERROR; | |
185 } | |
509 | 186 |
187 cc = ngx_list_push(&r->headers_out.headers); | |
188 if (cc == NULL) { | |
189 return NGX_ERROR; | |
190 } | |
191 | |
192 cc->hash = 1; | |
193 cc->key.len = sizeof("Cache-Control") - 1; | |
194 cc->key.data = (u_char *) "Cache-Control"; | |
195 | |
537 | 196 *ccp = cc; |
197 | |
509 | 198 } else { |
199 for (i = 1; i < r->headers_out.cache_control.nelts; i++) { | |
537 | 200 ccp[i]->hash = 0; |
509 | 201 } |
537 | 202 |
203 cc = ccp[0]; | |
509 | 204 } |
326
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205 |
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206 if (conf->expires == NGX_HTTP_EXPIRES_EPOCH) { |
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207 expires->value.data = (u_char *) "Thu, 01 Jan 1970 00:00:01 GMT"; |
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208 |
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209 cc->value.len = sizeof("no-cache") - 1; |
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210 cc->value.data = (u_char *) "no-cache"; |
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211 |
729 | 212 } else if (conf->expires == NGX_HTTP_EXPIRES_MAX) { |
213 expires->value.data = (u_char *) "Thu, 31 Dec 2037 23:55:55 GMT"; | |
214 | |
215 /* 10 years */ | |
216 cc->value.len = sizeof("max-age=315360000") - 1; | |
217 cc->value.data = (u_char *) "max-age=315360000"; | |
218 | |
326
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219 } else { |
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220 expires->value.data = ngx_palloc(r->pool, len); |
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221 if (expires->value.data == NULL) { |
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222 return NGX_ERROR; |
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223 } |
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224 |
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225 if (conf->expires == 0) { |
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226 ngx_memcpy(expires->value.data, ngx_cached_http_time.data, |
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227 ngx_cached_http_time.len + 1); |
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228 |
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229 cc->value.len = sizeof("max-age=0") - 1; |
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230 cc->value.data = (u_char *) "max-age=0"; |
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231 |
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232 } else { |
370
54f76b0b8dca
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356
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233 ngx_http_time(expires->value.data, ngx_time() + conf->expires); |
326
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234 |
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235 if (conf->expires < 0) { |
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236 cc->value.len = sizeof("no-cache") - 1; |
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237 cc->value.data = (u_char *) "no-cache"; |
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238 |
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239 } else { |
477 | 240 cc->value.data = ngx_palloc(r->pool, sizeof("max-age=") |
241 + NGX_TIME_T_LEN + 1); | |
326
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242 if (cc->value.data == NULL) { |
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243 return NGX_ERROR; |
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244 } |
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245 |
455 | 246 cc->value.len = ngx_sprintf(cc->value.data, "max-age=%T", |
247 conf->expires) | |
248 - cc->value.data; | |
326
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249 } |
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250 } |
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251 } |
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252 } |
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253 |
573 | 254 if (conf->cache_control.len) { |
255 | |
256 ccp = r->headers_out.cache_control.elts; | |
257 | |
258 if (ccp == NULL) { | |
259 | |
260 if (ngx_array_init(&r->headers_out.cache_control, r->pool, | |
261 1, sizeof(ngx_table_elt_t *)) | |
262 != NGX_OK) | |
263 { | |
264 return NGX_ERROR; | |
265 } | |
266 } | |
267 | |
268 ccp = ngx_array_push(&r->headers_out.cache_control); | |
269 if (ccp == NULL) { | |
270 return NGX_ERROR; | |
271 } | |
272 | |
273 cc = ngx_list_push(&r->headers_out.headers); | |
274 if (cc == NULL) { | |
275 return NGX_ERROR; | |
276 } | |
277 | |
278 cc->hash = 1; | |
279 cc->key.len = sizeof("Cache-Control") - 1; | |
280 cc->key.data = (u_char *) "Cache-Control"; | |
281 cc->value = conf->cache_control; | |
282 | |
283 *ccp = cc; | |
284 } | |
285 | |
286 if (conf->headers) { | |
287 h = conf->headers->elts; | |
288 for (i = 0; i < conf->headers->nelts; i++) { | |
625 | 289 |
290 if (h[i].lengths == NULL) { | |
1363
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291 value = h[i].value.value; |
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292 |
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293 } else { |
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294 if (ngx_http_script_run(r, &value, h[i].lengths->elts, 0, |
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295 h[i].values->elts) |
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296 == NULL) |
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297 { |
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298 return NGX_ERROR; |
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299 } |
625 | 300 } |
301 | |
1363
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302 if (h[i].handler(r, &h[i], &value) != NGX_OK) { |
625 | 303 return NGX_ERROR; |
304 } | |
573 | 305 } |
306 } | |
307 | |
326
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308 return ngx_http_next_header_filter(r); |
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309 } |
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310 |
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311 |
1363
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312 static ngx_int_t |
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313 ngx_http_add_header(ngx_http_request_t *r, ngx_http_header_val_t *hv, |
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314 ngx_str_t *value) |
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315 { |
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316 ngx_table_elt_t *h; |
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317 |
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318 h = ngx_list_push(&r->headers_out.headers); |
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319 if (h == NULL) { |
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320 return NGX_ERROR; |
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321 } |
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322 |
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323 h->hash = hv->value.hash; |
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324 h->key = hv->value.key; |
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325 h->value = *value; |
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326 |
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327 return NGX_OK; |
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328 } |
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329 |
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330 |
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331 static ngx_int_t |
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332 ngx_http_set_last_modified(ngx_http_request_t *r, ngx_http_header_val_t *hv, |
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333 ngx_str_t *value) |
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334 { |
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335 ngx_table_elt_t *h, **old; |
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336 |
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337 if (hv->offset) { |
1364 | 338 old = (ngx_table_elt_t **) ((char *) &r->headers_out + hv->offset); |
1363
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339 |
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340 } else { |
1364 | 341 old = NULL; |
1363
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342 } |
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343 |
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Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
344 if (old == NULL || *old == NULL) { |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
345 h = ngx_list_push(&r->headers_out.headers); |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
346 if (h == NULL) { |
b0e114fb3bdc
use header specific handler in add_handler,
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parents:
1107
diff
changeset
|
347 return NGX_ERROR; |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
348 } |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
349 |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
350 } else { |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
351 h = *old; |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
352 } |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
353 |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
354 h->hash = hv->value.hash; |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
355 h->key = hv->value.key; |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
356 h->value = *value; |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
357 |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
358 r->headers_out.last_modified_time = -1; |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
359 |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
360 return NGX_OK; |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
361 } |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
362 |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
363 |
501 | 364 static void * |
365 ngx_http_headers_create_conf(ngx_conf_t *cf) | |
577 | 366 { |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
367 ngx_http_headers_conf_t *conf; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
368 |
573 | 369 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_headers_conf_t)); |
501 | 370 if (conf == NULL) { |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
371 return NGX_CONF_ERROR; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
372 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
373 |
573 | 374 /* |
375 * set by ngx_pcalloc(): | |
376 * | |
377 * conf->cache_control.len = 0; | |
378 * conf->cache_control.data = NULL; | |
379 * conf->headers = NULL; | |
380 */ | |
381 | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
382 conf->expires = NGX_HTTP_EXPIRES_UNSET; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
383 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
384 return conf; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
385 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
386 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
387 |
501 | 388 static char * |
389 ngx_http_headers_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
390 { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
391 ngx_http_headers_conf_t *prev = parent; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
392 ngx_http_headers_conf_t *conf = child; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
393 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
394 if (conf->expires == NGX_HTTP_EXPIRES_UNSET) { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
395 conf->expires = (prev->expires == NGX_HTTP_EXPIRES_UNSET) ? |
1364 | 396 NGX_HTTP_EXPIRES_OFF : prev->expires; |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
397 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
398 |
573 | 399 if (conf->cache_control.data == NULL) { |
400 conf->cache_control = prev->cache_control; | |
401 } | |
402 | |
403 if (conf->headers == NULL) { | |
404 conf->headers = prev->headers; | |
405 } | |
406 | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
407 return NGX_CONF_OK; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
408 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
409 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
410 |
681 | 411 static ngx_int_t |
412 ngx_http_headers_filter_init(ngx_conf_t *cf) | |
413 { | |
414 ngx_http_next_header_filter = ngx_http_top_header_filter; | |
415 ngx_http_top_header_filter = ngx_http_headers_filter; | |
416 | |
417 return NGX_OK; | |
418 } | |
419 | |
420 | |
501 | 421 static char * |
422 ngx_http_headers_expires(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
423 { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
424 ngx_http_headers_conf_t *hcf = conf; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
425 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
426 ngx_uint_t minus; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
427 ngx_str_t *value; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
428 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
429 if (hcf->expires != NGX_HTTP_EXPIRES_UNSET) { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
430 return "is duplicate"; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
431 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
432 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
433 value = cf->args->elts; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
434 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
435 if (ngx_strcmp(value[1].data, "epoch") == 0) { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
436 hcf->expires = NGX_HTTP_EXPIRES_EPOCH; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
437 return NGX_CONF_OK; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
438 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
439 |
729 | 440 if (ngx_strcmp(value[1].data, "max") == 0) { |
441 hcf->expires = NGX_HTTP_EXPIRES_MAX; | |
442 return NGX_CONF_OK; | |
443 } | |
444 | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
445 if (ngx_strcmp(value[1].data, "off") == 0) { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
446 hcf->expires = NGX_HTTP_EXPIRES_OFF; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
447 return NGX_CONF_OK; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
448 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
449 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
450 if (value[1].data[0] == '+') { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
451 value[1].data++; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
452 value[1].len--; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
453 minus = 0; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
454 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
455 } else if (value[1].data[0] == '-') { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
456 value[1].data++; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
457 value[1].len--; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
458 minus = 1; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
459 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
460 } else { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
461 minus = 0; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
462 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
463 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
464 hcf->expires = ngx_parse_time(&value[1], 1); |
501 | 465 |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
466 if (hcf->expires == NGX_ERROR) { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
467 return "invalid value"; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
468 } |
577 | 469 |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
470 if (hcf->expires == NGX_PARSE_LARGE_TIME) { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
471 return "value must be less than 68 years"; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
472 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
473 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
474 if (minus) { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
475 hcf->expires = - hcf->expires; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
476 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
477 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
478 return NGX_CONF_OK; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
479 } |
573 | 480 |
481 | |
482 static char * | |
483 ngx_http_headers_add(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
484 { | |
485 ngx_http_headers_conf_t *hcf = conf; | |
486 | |
625 | 487 ngx_int_t n; |
488 ngx_str_t *value; | |
1363
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
489 ngx_uint_t i; |
625 | 490 ngx_http_header_val_t *h; |
1363
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
491 ngx_http_set_header_t *sh; |
625 | 492 ngx_http_script_compile_t sc; |
573 | 493 |
494 value = cf->args->elts; | |
495 | |
1107
db7c468c447d
ngx_strcasecmp()/ngx_strncasecmp()
Igor Sysoev <igor@sysoev.ru>
parents:
729
diff
changeset
|
496 if (ngx_strcasecmp(value[1].data, (u_char *) "cache-control") == 0) { |
573 | 497 hcf->cache_control = value[2]; |
498 return NGX_CONF_OK; | |
499 } | |
500 | |
501 if (hcf->headers == NULL) { | |
625 | 502 hcf->headers = ngx_array_create(cf->pool, 1, |
503 sizeof(ngx_http_header_val_t)); | |
573 | 504 if (hcf->headers == NULL) { |
505 return NGX_CONF_ERROR; | |
506 } | |
507 } | |
508 | |
509 h = ngx_array_push(hcf->headers); | |
510 if (h == NULL) { | |
511 return NGX_CONF_ERROR; | |
512 } | |
513 | |
625 | 514 h->value.hash = 1; |
515 h->value.key = value[1]; | |
516 h->value.value = value[2]; | |
1363
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
517 h->offset = 0; |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
518 h->handler = ngx_http_add_header; |
625 | 519 h->lengths = NULL; |
520 h->values = NULL; | |
521 | |
1363
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
522 sh = ngx_http_set_headers; |
b0e114fb3bdc
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parents:
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523 for (i = 0; sh[i].name.len; i++) { |
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parents:
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524 if (ngx_strcasecmp(value[1].data, sh[i].name.data) != 0) { |
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parents:
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525 continue; |
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use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
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526 } |
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use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
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changeset
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527 |
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Igor Sysoev <igor@sysoev.ru>
parents:
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528 h->offset = sh[i].offset; |
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Igor Sysoev <igor@sysoev.ru>
parents:
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529 h->handler = sh[i].handler; |
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parents:
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530 break; |
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use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
531 } |
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use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
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532 |
625 | 533 n = ngx_http_script_variables_count(&value[2]); |
534 | |
535 if (n == 0) { | |
536 return NGX_CONF_OK; | |
537 } | |
538 | |
539 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
540 | |
541 sc.cf = cf; | |
542 sc.source = &value[2]; | |
543 sc.lengths = &h->lengths; | |
544 sc.values = &h->values; | |
545 sc.variables = n; | |
546 sc.complete_lengths = 1; | |
547 sc.complete_values = 1; | |
548 | |
549 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
550 return NGX_CONF_ERROR; | |
551 } | |
573 | 552 |
553 return NGX_CONF_OK; | |
554 } |