Mercurial > hg > nginx
annotate src/http/modules/ngx_http_headers_filter_module.c @ 1590:8f8e0a60685f
fix segfault
author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 22 Oct 2007 10:15:27 +0000 |
parents | 279210f24408 |
children | b318cdca3aac |
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_array_t *headers; |
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37 } ngx_http_headers_conf_t; |
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38 |
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39 |
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40 #define NGX_HTTP_EXPIRES_UNSET -2147483647 |
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41 #define NGX_HTTP_EXPIRES_OFF -2147483646 |
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42 #define NGX_HTTP_EXPIRES_EPOCH -2147483645 |
729 | 43 #define NGX_HTTP_EXPIRES_MAX -2147483644 |
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44 |
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45 |
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46 static ngx_int_t ngx_http_set_expires(ngx_http_request_t *r, |
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47 ngx_http_headers_conf_t *conf); |
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48 static ngx_int_t ngx_http_add_cache_control(ngx_http_request_t *r, |
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49 ngx_http_header_val_t *hv, ngx_str_t *value); |
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50 static ngx_int_t ngx_http_set_last_modified(ngx_http_request_t *r, |
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51 ngx_http_header_val_t *hv, ngx_str_t *value); |
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52 |
326
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53 static void *ngx_http_headers_create_conf(ngx_conf_t *cf); |
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54 static char *ngx_http_headers_merge_conf(ngx_conf_t *cf, |
573 | 55 void *parent, void *child); |
681 | 56 static ngx_int_t ngx_http_headers_filter_init(ngx_conf_t *cf); |
501 | 57 static char *ngx_http_headers_expires(ngx_conf_t *cf, ngx_command_t *cmd, |
58 void *conf); | |
573 | 59 static char *ngx_http_headers_add(ngx_conf_t *cf, ngx_command_t *cmd, |
60 void *conf); | |
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61 |
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62 |
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63 static ngx_http_set_header_t ngx_http_set_headers[] = { |
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64 |
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65 { ngx_string("Cache-Control"), 0, ngx_http_add_cache_control }, |
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66 |
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67 { ngx_string("Last-Modified"), |
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68 offsetof(ngx_http_headers_out_t, last_modified), |
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69 ngx_http_set_last_modified }, |
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70 |
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71 { ngx_null_string, 0, NULL } |
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72 }; |
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73 |
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74 |
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75 static ngx_command_t ngx_http_headers_filter_commands[] = { |
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76 |
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77 { ngx_string("expires"), |
573 | 78 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF |
79 |NGX_CONF_TAKE1, | |
326
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80 ngx_http_headers_expires, |
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81 NGX_HTTP_LOC_CONF_OFFSET, |
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82 0, |
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83 NULL}, |
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84 |
573 | 85 { ngx_string("add_header"), |
86 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF | |
87 |NGX_CONF_TAKE2, | |
88 ngx_http_headers_add, | |
89 NGX_HTTP_LOC_CONF_OFFSET, | |
90 0, | |
91 NULL}, | |
92 | |
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93 ngx_null_command |
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94 }; |
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95 |
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96 |
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97 static ngx_http_module_t ngx_http_headers_filter_module_ctx = { |
509 | 98 NULL, /* preconfiguration */ |
681 | 99 ngx_http_headers_filter_init, /* postconfiguration */ |
326
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100 |
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101 NULL, /* create main configuration */ |
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102 NULL, /* init main configuration */ |
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103 |
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104 NULL, /* create server configuration */ |
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105 NULL, /* merge server configuration */ |
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106 |
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107 ngx_http_headers_create_conf, /* create location configuration */ |
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108 ngx_http_headers_merge_conf /* merge location configuration */ |
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109 }; |
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110 |
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111 |
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112 ngx_module_t ngx_http_headers_filter_module = { |
509 | 113 NGX_MODULE_V1, |
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114 &ngx_http_headers_filter_module_ctx, /* module context */ |
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115 ngx_http_headers_filter_commands, /* module directives */ |
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116 NGX_HTTP_MODULE, /* module type */ |
541 | 117 NULL, /* init master */ |
681 | 118 NULL, /* init module */ |
541 | 119 NULL, /* init process */ |
120 NULL, /* init thread */ | |
121 NULL, /* exit thread */ | |
122 NULL, /* exit process */ | |
123 NULL, /* exit master */ | |
124 NGX_MODULE_V1_PADDING | |
326
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125 }; |
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126 |
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127 |
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128 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; |
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129 |
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130 |
501 | 131 static ngx_int_t |
132 ngx_http_headers_filter(ngx_http_request_t *r) | |
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133 { |
1364 | 134 ngx_str_t value; |
509 | 135 ngx_uint_t i; |
625 | 136 ngx_http_header_val_t *h; |
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137 ngx_http_headers_conf_t *conf; |
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138 |
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139 conf = ngx_http_get_module_loc_conf(r, ngx_http_headers_filter_module); |
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140 |
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141 if ((conf->expires == NGX_HTTP_EXPIRES_OFF && conf->headers == NULL) |
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142 || r != r->main |
663 | 143 || (r->headers_out.status != NGX_HTTP_OK |
144 && r->headers_out.status != NGX_HTTP_NO_CONTENT | |
145 && r->headers_out.status != NGX_HTTP_MOVED_PERMANENTLY | |
146 && r->headers_out.status != NGX_HTTP_MOVED_TEMPORARILY | |
147 && r->headers_out.status != NGX_HTTP_NOT_MODIFIED)) | |
543 | 148 { |
326
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149 return ngx_http_next_header_filter(r); |
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150 } |
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151 |
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152 if (conf->expires != NGX_HTTP_EXPIRES_OFF) { |
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153 if (ngx_http_set_expires(r, conf) != NGX_OK) { |
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154 return NGX_ERROR; |
326
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155 } |
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156 } |
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157 |
573 | 158 if (conf->headers) { |
159 h = conf->headers->elts; | |
160 for (i = 0; i < conf->headers->nelts; i++) { | |
625 | 161 |
162 if (h[i].lengths == NULL) { | |
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163 value = h[i].value.value; |
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164 |
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165 } else { |
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166 if (ngx_http_script_run(r, &value, h[i].lengths->elts, 0, |
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167 h[i].values->elts) |
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168 == NULL) |
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169 { |
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170 return NGX_ERROR; |
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171 } |
625 | 172 } |
173 | |
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174 if (h[i].handler(r, &h[i], &value) != NGX_OK) { |
625 | 175 return NGX_ERROR; |
176 } | |
573 | 177 } |
178 } | |
179 | |
326
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180 return ngx_http_next_header_filter(r); |
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181 } |
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182 |
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183 |
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184 static ngx_int_t |
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185 ngx_http_set_expires(ngx_http_request_t *r, ngx_http_headers_conf_t *conf) |
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186 { |
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187 size_t len; |
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188 ngx_uint_t i; |
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189 ngx_table_elt_t *expires, *cc, **ccp; |
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190 |
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191 expires = r->headers_out.expires; |
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192 |
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193 if (expires == NULL) { |
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194 |
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195 expires = ngx_list_push(&r->headers_out.headers); |
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196 if (expires == NULL) { |
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197 return NGX_ERROR; |
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198 } |
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199 |
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200 r->headers_out.expires = expires; |
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201 |
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202 expires->hash = 1; |
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203 expires->key.len = sizeof("Expires") - 1; |
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204 expires->key.data = (u_char *) "Expires"; |
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205 } |
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206 |
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207 len = sizeof("Mon, 28 Sep 1970 06:00:00 GMT"); |
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208 expires->value.len = len - 1; |
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209 |
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210 ccp = r->headers_out.cache_control.elts; |
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211 |
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212 if (ccp == NULL) { |
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213 |
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214 if (ngx_array_init(&r->headers_out.cache_control, r->pool, |
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215 1, sizeof(ngx_table_elt_t *)) |
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216 != NGX_OK) |
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217 { |
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218 return NGX_ERROR; |
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219 } |
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220 |
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221 ccp = ngx_array_push(&r->headers_out.cache_control); |
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222 if (ccp == 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 = ngx_list_push(&r->headers_out.headers); |
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227 if (cc == NULL) { |
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228 return NGX_ERROR; |
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229 } |
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230 |
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231 cc->hash = 1; |
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232 cc->key.len = sizeof("Cache-Control") - 1; |
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233 cc->key.data = (u_char *) "Cache-Control"; |
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234 |
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235 *ccp = cc; |
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236 |
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237 } else { |
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238 for (i = 1; i < r->headers_out.cache_control.nelts; i++) { |
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239 ccp[i]->hash = 0; |
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240 } |
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241 |
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242 cc = ccp[0]; |
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243 } |
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244 |
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245 if (conf->expires == NGX_HTTP_EXPIRES_EPOCH) { |
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246 expires->value.data = (u_char *) "Thu, 01 Jan 1970 00:00:01 GMT"; |
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247 |
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248 cc->value.len = sizeof("no-cache") - 1; |
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249 cc->value.data = (u_char *) "no-cache"; |
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250 |
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251 return NGX_OK; |
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252 } |
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253 |
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254 if (conf->expires == NGX_HTTP_EXPIRES_MAX) { |
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255 expires->value.data = (u_char *) "Thu, 31 Dec 2037 23:55:55 GMT"; |
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256 |
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257 /* 10 years */ |
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258 cc->value.len = sizeof("max-age=315360000") - 1; |
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259 cc->value.data = (u_char *) "max-age=315360000"; |
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260 |
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261 return NGX_OK; |
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262 } |
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263 |
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264 expires->value.data = ngx_palloc(r->pool, len); |
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265 if (expires->value.data == NULL) { |
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266 return NGX_ERROR; |
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267 } |
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268 |
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269 if (conf->expires == 0) { |
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270 ngx_memcpy(expires->value.data, ngx_cached_http_time.data, |
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271 ngx_cached_http_time.len + 1); |
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272 |
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273 cc->value.len = sizeof("max-age=0") - 1; |
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274 cc->value.data = (u_char *) "max-age=0"; |
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275 |
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276 return NGX_OK; |
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277 } |
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278 |
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279 ngx_http_time(expires->value.data, ngx_time() + conf->expires); |
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280 |
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281 if (conf->expires < 0) { |
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282 cc->value.len = sizeof("no-cache") - 1; |
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283 cc->value.data = (u_char *) "no-cache"; |
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284 |
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285 return NGX_OK; |
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286 } |
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287 |
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288 cc->value.data = ngx_palloc(r->pool, |
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289 sizeof("max-age=") + NGX_TIME_T_LEN + 1); |
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290 if (cc->value.data == NULL) { |
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291 return NGX_ERROR; |
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292 } |
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293 |
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294 cc->value.len = ngx_sprintf(cc->value.data, "max-age=%T", conf->expires) |
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295 - cc->value.data; |
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296 |
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297 return NGX_OK; |
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298 } |
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299 |
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300 |
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301 static ngx_int_t |
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302 ngx_http_add_header(ngx_http_request_t *r, ngx_http_header_val_t *hv, |
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303 ngx_str_t *value) |
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304 { |
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305 ngx_table_elt_t *h; |
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306 |
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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->value.hash; |
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313 h->key = hv->value.key; |
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314 h->value = *value; |
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315 |
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316 return NGX_OK; |
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317 } |
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318 |
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319 |
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320 static ngx_int_t |
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321 ngx_http_add_cache_control(ngx_http_request_t *r, ngx_http_header_val_t *hv, |
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322 ngx_str_t *value) |
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323 { |
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324 ngx_table_elt_t *cc, **ccp; |
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325 |
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326 ccp = r->headers_out.cache_control.elts; |
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327 |
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328 if (ccp == NULL) { |
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329 |
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330 if (ngx_array_init(&r->headers_out.cache_control, r->pool, |
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331 1, sizeof(ngx_table_elt_t *)) |
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332 != NGX_OK) |
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333 { |
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334 return NGX_ERROR; |
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335 } |
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336 } |
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337 |
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338 ccp = ngx_array_push(&r->headers_out.cache_control); |
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339 if (ccp == NULL) { |
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340 return NGX_ERROR; |
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341 } |
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342 |
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343 cc = ngx_list_push(&r->headers_out.headers); |
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344 if (cc == NULL) { |
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345 return NGX_ERROR; |
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346 } |
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347 |
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348 cc->hash = 1; |
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349 cc->key.len = sizeof("Cache-Control") - 1; |
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350 cc->key.data = (u_char *) "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 |
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372 if (old == NULL || *old == NULL) { |
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373 h = ngx_list_push(&r->headers_out.headers); |
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374 if (h == NULL) { |
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375 return NGX_ERROR; |
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376 } |
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377 |
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378 } else { |
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379 h = *old; |
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380 } |
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381 |
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382 h->hash = hv->value.hash; |
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383 h->key = hv->value.key; |
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384 h->value = *value; |
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385 |
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386 r->headers_out.last_modified_time = -1; |
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387 |
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388 return NGX_OK; |
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389 } |
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390 |
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391 |
501 | 392 static void * |
393 ngx_http_headers_create_conf(ngx_conf_t *cf) | |
577 | 394 { |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
395 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
|
396 |
573 | 397 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_headers_conf_t)); |
501 | 398 if (conf == NULL) { |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
399 return NGX_CONF_ERROR; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
400 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
401 |
573 | 402 /* |
403 * set by ngx_pcalloc(): | |
404 * | |
405 * conf->headers = NULL; | |
406 */ | |
407 | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
408 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
|
409 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
410 return conf; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
411 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
412 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
413 |
501 | 414 static char * |
415 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
|
416 { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
417 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
|
418 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
|
419 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
420 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
|
421 conf->expires = (prev->expires == NGX_HTTP_EXPIRES_UNSET) ? |
1364 | 422 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
|
423 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
424 |
573 | 425 if (conf->headers == NULL) { |
426 conf->headers = prev->headers; | |
427 } | |
428 | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
429 return NGX_CONF_OK; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
430 } |
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 |
681 | 433 static ngx_int_t |
434 ngx_http_headers_filter_init(ngx_conf_t *cf) | |
435 { | |
436 ngx_http_next_header_filter = ngx_http_top_header_filter; | |
437 ngx_http_top_header_filter = ngx_http_headers_filter; | |
438 | |
439 return NGX_OK; | |
440 } | |
441 | |
442 | |
501 | 443 static char * |
444 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
|
445 { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
446 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
|
447 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
448 ngx_uint_t minus; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
449 ngx_str_t *value; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
450 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
451 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
|
452 return "is duplicate"; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
453 } |
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 value = cf->args->elts; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
456 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
457 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
|
458 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
|
459 return NGX_CONF_OK; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
460 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
461 |
729 | 462 if (ngx_strcmp(value[1].data, "max") == 0) { |
463 hcf->expires = NGX_HTTP_EXPIRES_MAX; | |
464 return NGX_CONF_OK; | |
465 } | |
466 | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
467 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
|
468 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
|
469 return NGX_CONF_OK; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
470 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
471 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
472 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
|
473 value[1].data++; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
474 value[1].len--; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
475 minus = 0; |
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 } 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
|
478 value[1].data++; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
479 value[1].len--; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
480 minus = 1; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
481 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
482 } else { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
483 minus = 0; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
484 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
485 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
486 hcf->expires = ngx_parse_time(&value[1], 1); |
501 | 487 |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
488 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
|
489 return "invalid value"; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
490 } |
577 | 491 |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
492 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
|
493 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
|
494 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
495 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
496 if (minus) { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
497 hcf->expires = - hcf->expires; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
498 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
499 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
500 return NGX_CONF_OK; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
501 } |
573 | 502 |
503 | |
504 static char * | |
505 ngx_http_headers_add(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
506 { | |
507 ngx_http_headers_conf_t *hcf = conf; | |
508 | |
625 | 509 ngx_int_t n; |
510 ngx_str_t *value; | |
1363
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
511 ngx_uint_t i; |
625 | 512 ngx_http_header_val_t *h; |
1363
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
513 ngx_http_set_header_t *sh; |
625 | 514 ngx_http_script_compile_t sc; |
573 | 515 |
516 value = cf->args->elts; | |
517 | |
518 if (hcf->headers == NULL) { | |
625 | 519 hcf->headers = ngx_array_create(cf->pool, 1, |
520 sizeof(ngx_http_header_val_t)); | |
573 | 521 if (hcf->headers == NULL) { |
522 return NGX_CONF_ERROR; | |
523 } | |
524 } | |
525 | |
526 h = ngx_array_push(hcf->headers); | |
527 if (h == NULL) { | |
528 return NGX_CONF_ERROR; | |
529 } | |
530 | |
625 | 531 h->value.hash = 1; |
532 h->value.key = value[1]; | |
533 h->value.value = value[2]; | |
1363
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
534 h->offset = 0; |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
535 h->handler = ngx_http_add_header; |
625 | 536 h->lengths = NULL; |
537 h->values = NULL; | |
538 | |
1363
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
539 sh = ngx_http_set_headers; |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
540 for (i = 0; sh[i].name.len; i++) { |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
541 if (ngx_strcasecmp(value[1].data, sh[i].name.data) != 0) { |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
542 continue; |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
543 } |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
544 |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
545 h->offset = sh[i].offset; |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
546 h->handler = sh[i].handler; |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
547 break; |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
548 } |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
549 |
625 | 550 n = ngx_http_script_variables_count(&value[2]); |
551 | |
552 if (n == 0) { | |
553 return NGX_CONF_OK; | |
554 } | |
555 | |
556 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
557 | |
558 sc.cf = cf; | |
559 sc.source = &value[2]; | |
560 sc.lengths = &h->lengths; | |
561 sc.values = &h->values; | |
562 sc.variables = n; | |
563 sc.complete_lengths = 1; | |
564 sc.complete_values = 1; | |
565 | |
566 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
567 return NGX_CONF_ERROR; | |
568 } | |
573 | 569 |
570 return NGX_CONF_OK; | |
571 } |