Mercurial > hg > nginx-quic
annotate src/http/modules/ngx_http_headers_filter_module.c @ 1316:f5bb5521d02c
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author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 17 Jul 2007 10:15:07 +0000 |
parents | db7c468c447d |
children | b0e114fb3bdc f552535e259b |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
441
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4 */ |
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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 { |
625 | 13 ngx_table_elt_t value; |
14 ngx_array_t *lengths; | |
15 ngx_array_t *values; | |
16 } ngx_http_header_val_t; | |
17 | |
18 | |
19 typedef struct { | |
20 time_t expires; | |
21 ngx_str_t cache_control; | |
22 ngx_array_t *headers; | |
326
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23 } ngx_http_headers_conf_t; |
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24 |
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25 |
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26 #define NGX_HTTP_EXPIRES_UNSET -2147483647 |
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27 #define NGX_HTTP_EXPIRES_OFF -2147483646 |
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28 #define NGX_HTTP_EXPIRES_EPOCH -2147483645 |
729 | 29 #define NGX_HTTP_EXPIRES_MAX -2147483644 |
326
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30 |
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31 |
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32 static void *ngx_http_headers_create_conf(ngx_conf_t *cf); |
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33 static char *ngx_http_headers_merge_conf(ngx_conf_t *cf, |
573 | 34 void *parent, void *child); |
681 | 35 static ngx_int_t ngx_http_headers_filter_init(ngx_conf_t *cf); |
501 | 36 static char *ngx_http_headers_expires(ngx_conf_t *cf, ngx_command_t *cmd, |
37 void *conf); | |
573 | 38 static char *ngx_http_headers_add(ngx_conf_t *cf, ngx_command_t *cmd, |
39 void *conf); | |
326
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40 |
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41 |
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42 static ngx_command_t ngx_http_headers_filter_commands[] = { |
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43 |
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44 { ngx_string("expires"), |
573 | 45 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF |
46 |NGX_CONF_TAKE1, | |
326
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47 ngx_http_headers_expires, |
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48 NGX_HTTP_LOC_CONF_OFFSET, |
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49 0, |
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50 NULL}, |
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51 |
573 | 52 { ngx_string("add_header"), |
53 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF | |
54 |NGX_CONF_TAKE2, | |
55 ngx_http_headers_add, | |
56 NGX_HTTP_LOC_CONF_OFFSET, | |
57 0, | |
58 NULL}, | |
59 | |
326
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60 ngx_null_command |
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61 }; |
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62 |
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63 |
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64 static ngx_http_module_t ngx_http_headers_filter_module_ctx = { |
509 | 65 NULL, /* preconfiguration */ |
681 | 66 ngx_http_headers_filter_init, /* postconfiguration */ |
326
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67 |
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68 NULL, /* create main configuration */ |
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69 NULL, /* init main configuration */ |
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70 |
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71 NULL, /* create server configuration */ |
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72 NULL, /* merge server configuration */ |
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73 |
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74 ngx_http_headers_create_conf, /* create location configuration */ |
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75 ngx_http_headers_merge_conf /* merge location configuration */ |
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76 }; |
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77 |
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78 |
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79 ngx_module_t ngx_http_headers_filter_module = { |
509 | 80 NGX_MODULE_V1, |
326
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81 &ngx_http_headers_filter_module_ctx, /* module context */ |
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82 ngx_http_headers_filter_commands, /* module directives */ |
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83 NGX_HTTP_MODULE, /* module type */ |
541 | 84 NULL, /* init master */ |
681 | 85 NULL, /* init module */ |
541 | 86 NULL, /* init process */ |
87 NULL, /* init thread */ | |
88 NULL, /* exit thread */ | |
89 NULL, /* exit process */ | |
90 NULL, /* exit master */ | |
91 NGX_MODULE_V1_PADDING | |
326
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92 }; |
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93 |
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94 |
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95 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; |
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96 |
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97 |
501 | 98 static ngx_int_t |
99 ngx_http_headers_filter(ngx_http_request_t *r) | |
326
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100 { |
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101 size_t len; |
509 | 102 ngx_uint_t i; |
625 | 103 ngx_table_elt_t *expires, *cc, **ccp, *out; |
104 ngx_http_header_val_t *h; | |
326
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105 ngx_http_headers_conf_t *conf; |
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106 |
663 | 107 if (r != r->main |
108 || (r->headers_out.status != NGX_HTTP_OK | |
109 && r->headers_out.status != NGX_HTTP_NO_CONTENT | |
110 && r->headers_out.status != NGX_HTTP_MOVED_PERMANENTLY | |
111 && r->headers_out.status != NGX_HTTP_MOVED_TEMPORARILY | |
112 && r->headers_out.status != NGX_HTTP_NOT_MODIFIED)) | |
543 | 113 { |
326
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114 return ngx_http_next_header_filter(r); |
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115 } |
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116 |
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117 conf = ngx_http_get_module_loc_conf(r, ngx_http_headers_filter_module); |
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118 |
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119 if (conf->expires != NGX_HTTP_EXPIRES_OFF) { |
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120 |
509 | 121 expires = r->headers_out.expires; |
122 | |
501 | 123 if (expires == NULL) { |
509 | 124 |
125 expires = ngx_list_push(&r->headers_out.headers); | |
126 if (expires == NULL) { | |
127 return NGX_ERROR; | |
128 } | |
129 | |
130 r->headers_out.expires = expires; | |
131 | |
132 expires->hash = 1; | |
133 expires->key.len = sizeof("Expires") - 1; | |
134 expires->key.data = (u_char *) "Expires"; | |
326
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135 } |
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136 |
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137 len = sizeof("Mon, 28 Sep 1970 06:00:00 GMT"); |
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138 expires->value.len = len - 1; |
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139 |
537 | 140 ccp = r->headers_out.cache_control.elts; |
141 | |
142 if (ccp == NULL) { | |
509 | 143 |
537 | 144 if (ngx_array_init(&r->headers_out.cache_control, r->pool, |
573 | 145 1, sizeof(ngx_table_elt_t *)) |
146 != NGX_OK) | |
537 | 147 { |
148 return NGX_ERROR; | |
149 } | |
150 | |
151 ccp = ngx_array_push(&r->headers_out.cache_control); | |
152 if (ccp == NULL) { | |
153 return NGX_ERROR; | |
154 } | |
509 | 155 |
156 cc = ngx_list_push(&r->headers_out.headers); | |
157 if (cc == NULL) { | |
158 return NGX_ERROR; | |
159 } | |
160 | |
161 cc->hash = 1; | |
162 cc->key.len = sizeof("Cache-Control") - 1; | |
163 cc->key.data = (u_char *) "Cache-Control"; | |
164 | |
537 | 165 *ccp = cc; |
166 | |
509 | 167 } else { |
168 for (i = 1; i < r->headers_out.cache_control.nelts; i++) { | |
537 | 169 ccp[i]->hash = 0; |
509 | 170 } |
537 | 171 |
172 cc = ccp[0]; | |
509 | 173 } |
326
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174 |
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175 if (conf->expires == NGX_HTTP_EXPIRES_EPOCH) { |
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176 expires->value.data = (u_char *) "Thu, 01 Jan 1970 00:00:01 GMT"; |
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177 |
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178 cc->value.len = sizeof("no-cache") - 1; |
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179 cc->value.data = (u_char *) "no-cache"; |
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180 |
729 | 181 } else if (conf->expires == NGX_HTTP_EXPIRES_MAX) { |
182 expires->value.data = (u_char *) "Thu, 31 Dec 2037 23:55:55 GMT"; | |
183 | |
184 /* 10 years */ | |
185 cc->value.len = sizeof("max-age=315360000") - 1; | |
186 cc->value.data = (u_char *) "max-age=315360000"; | |
187 | |
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188 } else { |
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189 expires->value.data = ngx_palloc(r->pool, len); |
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190 if (expires->value.data == NULL) { |
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191 return NGX_ERROR; |
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parents:
diff
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|
192 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
193 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
194 if (conf->expires == 0) { |
8733703a37f3
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
195 ngx_memcpy(expires->value.data, ngx_cached_http_time.data, |
8733703a37f3
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parents:
diff
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|
196 ngx_cached_http_time.len + 1); |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
197 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
198 cc->value.len = sizeof("max-age=0") - 1; |
8733703a37f3
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parents:
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|
199 cc->value.data = (u_char *) "max-age=0"; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
200 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
201 } else { |
370
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
356
diff
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|
202 ngx_http_time(expires->value.data, ngx_time() + conf->expires); |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
203 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
204 if (conf->expires < 0) { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
205 cc->value.len = sizeof("no-cache") - 1; |
8733703a37f3
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parents:
diff
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|
206 cc->value.data = (u_char *) "no-cache"; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
207 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
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parents:
diff
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|
208 } else { |
477 | 209 cc->value.data = ngx_palloc(r->pool, sizeof("max-age=") |
210 + NGX_TIME_T_LEN + 1); | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
211 if (cc->value.data == NULL) { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
212 return NGX_ERROR; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
213 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
214 |
455 | 215 cc->value.len = ngx_sprintf(cc->value.data, "max-age=%T", |
216 conf->expires) | |
217 - cc->value.data; | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
218 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
219 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
220 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
221 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
222 |
573 | 223 if (conf->cache_control.len) { |
224 | |
225 ccp = r->headers_out.cache_control.elts; | |
226 | |
227 if (ccp == NULL) { | |
228 | |
229 if (ngx_array_init(&r->headers_out.cache_control, r->pool, | |
230 1, sizeof(ngx_table_elt_t *)) | |
231 != NGX_OK) | |
232 { | |
233 return NGX_ERROR; | |
234 } | |
235 } | |
236 | |
237 ccp = ngx_array_push(&r->headers_out.cache_control); | |
238 if (ccp == NULL) { | |
239 return NGX_ERROR; | |
240 } | |
241 | |
242 cc = ngx_list_push(&r->headers_out.headers); | |
243 if (cc == NULL) { | |
244 return NGX_ERROR; | |
245 } | |
246 | |
247 cc->hash = 1; | |
248 cc->key.len = sizeof("Cache-Control") - 1; | |
249 cc->key.data = (u_char *) "Cache-Control"; | |
250 cc->value = conf->cache_control; | |
251 | |
252 *ccp = cc; | |
253 } | |
254 | |
255 if (conf->headers) { | |
256 h = conf->headers->elts; | |
257 for (i = 0; i < conf->headers->nelts; i++) { | |
258 out = ngx_list_push(&r->headers_out.headers); | |
259 if (out == NULL) { | |
260 return NGX_ERROR; | |
261 } | |
262 | |
625 | 263 out->hash = h[i].value.hash; |
264 out->key = h[i].value.key; | |
265 | |
266 if (h[i].lengths == NULL) { | |
267 out->value = h[i].value.value; | |
268 continue; | |
269 } | |
270 | |
271 if (ngx_http_script_run(r, &out->value, h[i].lengths->elts, 0, | |
272 h[i].values->elts) | |
273 == NULL) | |
274 { | |
275 return NGX_ERROR; | |
276 } | |
573 | 277 } |
278 } | |
279 | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
280 return ngx_http_next_header_filter(r); |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
281 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
282 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
283 |
501 | 284 static void * |
285 ngx_http_headers_create_conf(ngx_conf_t *cf) | |
577 | 286 { |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
287 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
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|
288 |
573 | 289 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_headers_conf_t)); |
501 | 290 if (conf == NULL) { |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
291 return NGX_CONF_ERROR; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
292 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
293 |
573 | 294 /* |
295 * set by ngx_pcalloc(): | |
296 * | |
297 * conf->cache_control.len = 0; | |
298 * conf->cache_control.data = NULL; | |
299 * conf->headers = NULL; | |
300 */ | |
301 | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
302 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
|
303 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
304 return conf; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
305 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
306 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
307 |
501 | 308 static char * |
309 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
|
310 { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
311 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
|
312 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
|
313 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
314 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
|
315 conf->expires = (prev->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
|
316 NGX_HTTP_EXPIRES_OFF : prev->expires; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
317 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
318 |
573 | 319 if (conf->cache_control.data == NULL) { |
320 conf->cache_control = prev->cache_control; | |
321 } | |
322 | |
323 if (conf->headers == NULL) { | |
324 conf->headers = prev->headers; | |
325 } | |
326 | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
327 return NGX_CONF_OK; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
328 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
329 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
330 |
681 | 331 static ngx_int_t |
332 ngx_http_headers_filter_init(ngx_conf_t *cf) | |
333 { | |
334 ngx_http_next_header_filter = ngx_http_top_header_filter; | |
335 ngx_http_top_header_filter = ngx_http_headers_filter; | |
336 | |
337 return NGX_OK; | |
338 } | |
339 | |
340 | |
501 | 341 static char * |
342 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
|
343 { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
344 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
|
345 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
346 ngx_uint_t minus; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
347 ngx_str_t *value; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
348 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
349 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
|
350 return "is duplicate"; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
351 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
352 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
353 value = cf->args->elts; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
354 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
355 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
|
356 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
|
357 return NGX_CONF_OK; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
358 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
359 |
729 | 360 if (ngx_strcmp(value[1].data, "max") == 0) { |
361 hcf->expires = NGX_HTTP_EXPIRES_MAX; | |
362 return NGX_CONF_OK; | |
363 } | |
364 | |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
365 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
|
366 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
|
367 return NGX_CONF_OK; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
368 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
369 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
370 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
|
371 value[1].data++; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
372 value[1].len--; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
373 minus = 0; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
374 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
375 } 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
|
376 value[1].data++; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
377 value[1].len--; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
378 minus = 1; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
379 |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
380 } else { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
381 minus = 0; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
382 } |
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 hcf->expires = ngx_parse_time(&value[1], 1); |
501 | 385 |
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
386 if (hcf->expires == NGX_ERROR) { |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
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387 return "invalid value"; |
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388 } |
577 | 389 |
326
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390 if (hcf->expires == NGX_PARSE_LARGE_TIME) { |
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391 return "value must be less than 68 years"; |
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392 } |
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393 |
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394 if (minus) { |
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395 hcf->expires = - hcf->expires; |
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396 } |
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397 |
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398 return NGX_CONF_OK; |
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399 } |
573 | 400 |
401 | |
402 static char * | |
403 ngx_http_headers_add(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
404 { | |
405 ngx_http_headers_conf_t *hcf = conf; | |
406 | |
625 | 407 ngx_int_t n; |
408 ngx_str_t *value; | |
409 ngx_http_header_val_t *h; | |
410 ngx_http_script_compile_t sc; | |
573 | 411 |
412 value = cf->args->elts; | |
413 | |
1107
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414 if (ngx_strcasecmp(value[1].data, (u_char *) "cache-control") == 0) { |
573 | 415 hcf->cache_control = value[2]; |
416 return NGX_CONF_OK; | |
417 } | |
418 | |
419 if (hcf->headers == NULL) { | |
625 | 420 hcf->headers = ngx_array_create(cf->pool, 1, |
421 sizeof(ngx_http_header_val_t)); | |
573 | 422 if (hcf->headers == NULL) { |
423 return NGX_CONF_ERROR; | |
424 } | |
425 } | |
426 | |
427 h = ngx_array_push(hcf->headers); | |
428 if (h == NULL) { | |
429 return NGX_CONF_ERROR; | |
430 } | |
431 | |
625 | 432 h->value.hash = 1; |
433 h->value.key = value[1]; | |
434 h->value.value = value[2]; | |
435 h->lengths = NULL; | |
436 h->values = NULL; | |
437 | |
438 n = ngx_http_script_variables_count(&value[2]); | |
439 | |
440 if (n == 0) { | |
441 return NGX_CONF_OK; | |
442 } | |
443 | |
444 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
445 | |
446 sc.cf = cf; | |
447 sc.source = &value[2]; | |
448 sc.lengths = &h->lengths; | |
449 sc.values = &h->values; | |
450 sc.variables = n; | |
451 sc.complete_lengths = 1; | |
452 sc.complete_values = 1; | |
453 | |
454 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
455 return NGX_CONF_ERROR; | |
456 } | |
573 | 457 |
458 return NGX_CONF_OK; | |
459 } |