Mercurial > hg > nginx-quic
annotate src/http/modules/ngx_http_headers_filter_module.c @ 5885:5a042519bfe7
Upstream: limited next_upstream time and tries when resolving DNS.
When got multiple upstream IP addresses using DNS resolving, the number of
upstreams tries and the maxinum time spent for these tries were not affected.
This patch fixed it.
author | Gu Feng <flygoast@126.com> |
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date | Mon, 27 Oct 2014 19:52:03 +0800 |
parents | 74ffe03555d0 |
children | 36e61455a8f4 |
rev | line source |
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441
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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6 |
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 #include <ngx_http.h> |
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11 |
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12 |
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13 typedef struct ngx_http_header_val_s ngx_http_header_val_t; |
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14 |
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15 typedef ngx_int_t (*ngx_http_set_header_pt)(ngx_http_request_t *r, |
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16 ngx_http_header_val_t *hv, ngx_str_t *value); |
625 | 17 |
18 | |
19 typedef struct { | |
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20 ngx_str_t name; |
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21 ngx_uint_t offset; |
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22 ngx_http_set_header_pt handler; |
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23 } ngx_http_set_header_t; |
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24 |
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25 |
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26 struct ngx_http_header_val_s { |
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27 ngx_http_complex_value_t value; |
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28 ngx_str_t key; |
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29 ngx_http_set_header_pt handler; |
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30 ngx_uint_t offset; |
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31 ngx_uint_t always; /* unsigned always:1 */ |
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32 }; |
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33 |
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34 |
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35 typedef enum { |
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36 NGX_HTTP_EXPIRES_OFF, |
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37 NGX_HTTP_EXPIRES_EPOCH, |
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38 NGX_HTTP_EXPIRES_MAX, |
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39 NGX_HTTP_EXPIRES_ACCESS, |
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40 NGX_HTTP_EXPIRES_MODIFIED, |
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41 NGX_HTTP_EXPIRES_DAILY, |
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42 NGX_HTTP_EXPIRES_UNSET |
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43 } ngx_http_expires_t; |
2013 | 44 |
45 | |
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46 typedef struct { |
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47 ngx_http_expires_t expires; |
2013 | 48 time_t expires_time; |
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49 ngx_array_t *headers; |
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50 } ngx_http_headers_conf_t; |
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51 |
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52 |
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53 static ngx_int_t ngx_http_set_expires(ngx_http_request_t *r, |
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54 ngx_http_headers_conf_t *conf); |
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55 static ngx_int_t ngx_http_add_cache_control(ngx_http_request_t *r, |
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56 ngx_http_header_val_t *hv, ngx_str_t *value); |
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57 static ngx_int_t ngx_http_add_header(ngx_http_request_t *r, |
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58 ngx_http_header_val_t *hv, ngx_str_t *value); |
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59 static ngx_int_t ngx_http_set_last_modified(ngx_http_request_t *r, |
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60 ngx_http_header_val_t *hv, ngx_str_t *value); |
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61 static ngx_int_t ngx_http_set_response_header(ngx_http_request_t *r, |
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62 ngx_http_header_val_t *hv, ngx_str_t *value); |
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63 |
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64 static void *ngx_http_headers_create_conf(ngx_conf_t *cf); |
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65 static char *ngx_http_headers_merge_conf(ngx_conf_t *cf, |
573 | 66 void *parent, void *child); |
681 | 67 static ngx_int_t ngx_http_headers_filter_init(ngx_conf_t *cf); |
501 | 68 static char *ngx_http_headers_expires(ngx_conf_t *cf, ngx_command_t *cmd, |
69 void *conf); | |
573 | 70 static char *ngx_http_headers_add(ngx_conf_t *cf, ngx_command_t *cmd, |
71 void *conf); | |
326
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72 |
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73 |
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74 static ngx_http_set_header_t ngx_http_set_headers[] = { |
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75 |
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76 { ngx_string("Cache-Control"), 0, ngx_http_add_cache_control }, |
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77 |
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78 { ngx_string("Last-Modified"), |
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79 offsetof(ngx_http_headers_out_t, last_modified), |
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80 ngx_http_set_last_modified }, |
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81 |
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82 { ngx_string("ETag"), |
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83 offsetof(ngx_http_headers_out_t, etag), |
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84 ngx_http_set_response_header }, |
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85 |
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86 { ngx_null_string, 0, NULL } |
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87 }; |
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88 |
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89 |
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90 static ngx_command_t ngx_http_headers_filter_commands[] = { |
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91 |
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92 { ngx_string("expires"), |
573 | 93 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF |
2013 | 94 |NGX_CONF_TAKE12, |
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95 ngx_http_headers_expires, |
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96 NGX_HTTP_LOC_CONF_OFFSET, |
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97 0, |
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98 NULL}, |
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99 |
573 | 100 { ngx_string("add_header"), |
101 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF | |
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102 |NGX_CONF_TAKE23, |
573 | 103 ngx_http_headers_add, |
104 NGX_HTTP_LOC_CONF_OFFSET, | |
105 0, | |
106 NULL}, | |
107 | |
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108 ngx_null_command |
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109 }; |
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110 |
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111 |
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112 static ngx_http_module_t ngx_http_headers_filter_module_ctx = { |
509 | 113 NULL, /* preconfiguration */ |
681 | 114 ngx_http_headers_filter_init, /* postconfiguration */ |
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115 |
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116 NULL, /* create main configuration */ |
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117 NULL, /* init main configuration */ |
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118 |
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119 NULL, /* create server configuration */ |
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120 NULL, /* merge server configuration */ |
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121 |
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122 ngx_http_headers_create_conf, /* create location configuration */ |
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123 ngx_http_headers_merge_conf /* merge location configuration */ |
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124 }; |
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125 |
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126 |
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127 ngx_module_t ngx_http_headers_filter_module = { |
509 | 128 NGX_MODULE_V1, |
326
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129 &ngx_http_headers_filter_module_ctx, /* module context */ |
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130 ngx_http_headers_filter_commands, /* module directives */ |
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131 NGX_HTTP_MODULE, /* module type */ |
541 | 132 NULL, /* init master */ |
681 | 133 NULL, /* init module */ |
541 | 134 NULL, /* init process */ |
135 NULL, /* init thread */ | |
136 NULL, /* exit thread */ | |
137 NULL, /* exit process */ | |
138 NULL, /* exit master */ | |
139 NGX_MODULE_V1_PADDING | |
326
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140 }; |
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141 |
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142 |
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143 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; |
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144 |
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145 |
501 | 146 static ngx_int_t |
147 ngx_http_headers_filter(ngx_http_request_t *r) | |
326
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148 { |
1364 | 149 ngx_str_t value; |
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150 ngx_uint_t i, safe_status; |
625 | 151 ngx_http_header_val_t *h; |
326
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152 ngx_http_headers_conf_t *conf; |
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153 |
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154 conf = ngx_http_get_module_loc_conf(r, ngx_http_headers_filter_module); |
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155 |
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156 if ((conf->expires == NGX_HTTP_EXPIRES_OFF && conf->headers == NULL) |
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157 || r != r->main) |
543 | 158 { |
326
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159 return ngx_http_next_header_filter(r); |
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160 } |
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161 |
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162 switch (r->headers_out.status) { |
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163 |
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164 case NGX_HTTP_OK: |
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165 case NGX_HTTP_CREATED: |
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166 case NGX_HTTP_NO_CONTENT: |
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167 case NGX_HTTP_PARTIAL_CONTENT: |
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168 case NGX_HTTP_MOVED_PERMANENTLY: |
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169 case NGX_HTTP_MOVED_TEMPORARILY: |
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170 case NGX_HTTP_SEE_OTHER: |
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171 case NGX_HTTP_NOT_MODIFIED: |
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172 case NGX_HTTP_TEMPORARY_REDIRECT: |
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173 safe_status = 1; |
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174 break; |
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175 |
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176 default: |
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177 safe_status = 0; |
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178 break; |
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179 } |
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180 |
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181 if (conf->expires != NGX_HTTP_EXPIRES_OFF && safe_status) { |
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182 if (ngx_http_set_expires(r, conf) != NGX_OK) { |
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183 return NGX_ERROR; |
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184 } |
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185 } |
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186 |
573 | 187 if (conf->headers) { |
188 h = conf->headers->elts; | |
189 for (i = 0; i < conf->headers->nelts; i++) { | |
625 | 190 |
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191 if (!safe_status && !h[i].always) { |
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192 continue; |
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193 } |
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194 |
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195 if (ngx_http_complex_value(r, &h[i].value, &value) != NGX_OK) { |
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196 return NGX_ERROR; |
625 | 197 } |
198 | |
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199 if (h[i].handler(r, &h[i], &value) != NGX_OK) { |
625 | 200 return NGX_ERROR; |
201 } | |
573 | 202 } |
203 } | |
204 | |
326
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205 return ngx_http_next_header_filter(r); |
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206 } |
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207 |
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208 |
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209 static ngx_int_t |
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210 ngx_http_set_expires(ngx_http_request_t *r, ngx_http_headers_conf_t *conf) |
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211 { |
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212 size_t len; |
2163 | 213 time_t now, expires_time, max_age; |
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214 ngx_uint_t i; |
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215 ngx_table_elt_t *expires, *cc, **ccp; |
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216 |
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217 expires = r->headers_out.expires; |
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218 |
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219 if (expires == NULL) { |
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220 |
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221 expires = ngx_list_push(&r->headers_out.headers); |
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222 if (expires == NULL) { |
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223 return NGX_ERROR; |
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224 } |
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225 |
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226 r->headers_out.expires = expires; |
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227 |
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228 expires->hash = 1; |
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229 ngx_str_set(&expires->key, "Expires"); |
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230 } |
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231 |
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232 len = sizeof("Mon, 28 Sep 1970 06:00:00 GMT"); |
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233 expires->value.len = len - 1; |
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234 |
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235 ccp = r->headers_out.cache_control.elts; |
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236 |
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237 if (ccp == NULL) { |
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238 |
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239 if (ngx_array_init(&r->headers_out.cache_control, r->pool, |
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240 1, sizeof(ngx_table_elt_t *)) |
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241 != NGX_OK) |
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242 { |
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243 return NGX_ERROR; |
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244 } |
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245 |
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246 ccp = ngx_array_push(&r->headers_out.cache_control); |
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247 if (ccp == NULL) { |
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248 return NGX_ERROR; |
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249 } |
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250 |
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251 cc = ngx_list_push(&r->headers_out.headers); |
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252 if (cc == NULL) { |
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253 return NGX_ERROR; |
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254 } |
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255 |
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256 cc->hash = 1; |
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257 ngx_str_set(&cc->key, "Cache-Control"); |
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258 *ccp = cc; |
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259 |
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260 } else { |
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261 for (i = 1; i < r->headers_out.cache_control.nelts; i++) { |
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262 ccp[i]->hash = 0; |
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263 } |
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264 |
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265 cc = ccp[0]; |
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266 } |
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267 |
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268 if (conf->expires == NGX_HTTP_EXPIRES_EPOCH) { |
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269 expires->value.data = (u_char *) "Thu, 01 Jan 1970 00:00:01 GMT"; |
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270 ngx_str_set(&cc->value, "no-cache"); |
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271 return NGX_OK; |
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272 } |
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273 |
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274 if (conf->expires == NGX_HTTP_EXPIRES_MAX) { |
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275 expires->value.data = (u_char *) "Thu, 31 Dec 2037 23:55:55 GMT"; |
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276 /* 10 years */ |
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277 ngx_str_set(&cc->value, "max-age=315360000"); |
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278 return NGX_OK; |
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279 } |
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280 |
2049 | 281 expires->value.data = ngx_pnalloc(r->pool, len); |
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282 if (expires->value.data == NULL) { |
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283 return NGX_ERROR; |
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284 } |
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285 |
4216 | 286 if (conf->expires_time == 0 && conf->expires != NGX_HTTP_EXPIRES_DAILY) { |
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287 ngx_memcpy(expires->value.data, ngx_cached_http_time.data, |
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288 ngx_cached_http_time.len + 1); |
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289 ngx_str_set(&cc->value, "max-age=0"); |
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290 return NGX_OK; |
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291 } |
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292 |
2163 | 293 now = ngx_time(); |
294 | |
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295 if (conf->expires == NGX_HTTP_EXPIRES_DAILY) { |
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296 expires_time = ngx_next_time(conf->expires_time); |
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297 max_age = expires_time - now; |
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298 |
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299 } else if (conf->expires == NGX_HTTP_EXPIRES_ACCESS |
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300 || r->headers_out.last_modified_time == -1) |
2013 | 301 { |
2163 | 302 expires_time = now + conf->expires_time; |
303 max_age = conf->expires_time; | |
304 | |
2013 | 305 } else { |
2163 | 306 expires_time = r->headers_out.last_modified_time + conf->expires_time; |
307 max_age = expires_time - now; | |
2013 | 308 } |
309 | |
2163 | 310 ngx_http_time(expires->value.data, expires_time); |
2013 | 311 |
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312 if (conf->expires_time < 0 || max_age < 0) { |
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313 ngx_str_set(&cc->value, "no-cache"); |
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314 return NGX_OK; |
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315 } |
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316 |
2049 | 317 cc->value.data = ngx_pnalloc(r->pool, |
318 sizeof("max-age=") + NGX_TIME_T_LEN + 1); | |
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319 if (cc->value.data == NULL) { |
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320 return NGX_ERROR; |
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321 } |
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322 |
2163 | 323 cc->value.len = ngx_sprintf(cc->value.data, "max-age=%T", max_age) |
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324 - cc->value.data; |
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325 |
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326 return NGX_OK; |
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327 } |
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328 |
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329 |
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330 static ngx_int_t |
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331 ngx_http_add_header(ngx_http_request_t *r, ngx_http_header_val_t *hv, |
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332 ngx_str_t *value) |
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333 { |
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334 ngx_table_elt_t *h; |
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335 |
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336 if (value->len) { |
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337 h = ngx_list_push(&r->headers_out.headers); |
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338 if (h == NULL) { |
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339 return NGX_ERROR; |
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340 } |
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341 |
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342 h->hash = 1; |
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343 h->key = hv->key; |
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344 h->value = *value; |
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345 } |
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346 |
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347 return NGX_OK; |
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348 } |
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349 |
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350 |
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351 static ngx_int_t |
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352 ngx_http_add_cache_control(ngx_http_request_t *r, ngx_http_header_val_t *hv, |
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353 ngx_str_t *value) |
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354 { |
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355 ngx_table_elt_t *cc, **ccp; |
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356 |
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357 if (value->len == 0) { |
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358 return NGX_OK; |
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359 } |
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360 |
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361 ccp = r->headers_out.cache_control.elts; |
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362 |
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363 if (ccp == NULL) { |
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364 |
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365 if (ngx_array_init(&r->headers_out.cache_control, r->pool, |
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366 1, sizeof(ngx_table_elt_t *)) |
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367 != NGX_OK) |
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368 { |
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369 return NGX_ERROR; |
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370 } |
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371 } |
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372 |
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373 ccp = ngx_array_push(&r->headers_out.cache_control); |
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374 if (ccp == NULL) { |
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375 return NGX_ERROR; |
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376 } |
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377 |
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378 cc = ngx_list_push(&r->headers_out.headers); |
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379 if (cc == NULL) { |
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380 return NGX_ERROR; |
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381 } |
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382 |
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383 cc->hash = 1; |
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384 ngx_str_set(&cc->key, "Cache-Control"); |
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385 cc->value = *value; |
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386 |
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387 *ccp = cc; |
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388 |
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389 return NGX_OK; |
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390 } |
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391 |
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392 |
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393 static ngx_int_t |
1363
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394 ngx_http_set_last_modified(ngx_http_request_t *r, ngx_http_header_val_t *hv, |
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395 ngx_str_t *value) |
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396 { |
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397 if (ngx_http_set_response_header(r, hv, value) != NGX_OK) { |
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398 return NGX_ERROR; |
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399 } |
1655 | 400 |
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401 r->headers_out.last_modified_time = |
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402 (value->len) ? ngx_http_parse_time(value->data, value->len) : -1; |
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403 |
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404 return NGX_OK; |
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405 } |
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406 |
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407 |
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408 static ngx_int_t |
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409 ngx_http_set_response_header(ngx_http_request_t *r, ngx_http_header_val_t *hv, |
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410 ngx_str_t *value) |
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411 { |
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412 ngx_table_elt_t *h, **old; |
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413 |
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414 old = (ngx_table_elt_t **) ((char *) &r->headers_out + hv->offset); |
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415 |
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416 if (value->len == 0) { |
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417 if (*old) { |
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418 (*old)->hash = 0; |
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419 *old = NULL; |
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420 } |
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421 |
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422 return NGX_OK; |
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423 } |
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424 |
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425 if (*old) { |
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426 h = *old; |
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427 |
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428 } else { |
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429 h = ngx_list_push(&r->headers_out.headers); |
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430 if (h == NULL) { |
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431 return NGX_ERROR; |
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432 } |
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433 |
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434 *old = h; |
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435 } |
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436 |
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437 h->hash = 1; |
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438 h->key = hv->key; |
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439 h->value = *value; |
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440 |
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441 return NGX_OK; |
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442 } |
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443 |
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444 |
501 | 445 static void * |
446 ngx_http_headers_create_conf(ngx_conf_t *cf) | |
577 | 447 { |
326
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448 ngx_http_headers_conf_t *conf; |
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449 |
573 | 450 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_headers_conf_t)); |
501 | 451 if (conf == NULL) { |
2912
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452 return NULL; |
326
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453 } |
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|
454 |
573 | 455 /* |
456 * set by ngx_pcalloc(): | |
457 * | |
458 * conf->headers = NULL; | |
2013 | 459 * conf->expires_time = 0; |
573 | 460 */ |
461 | |
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462 conf->expires = NGX_HTTP_EXPIRES_UNSET; |
326
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463 |
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464 return conf; |
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|
465 } |
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parents:
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|
466 |
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|
467 |
501 | 468 static char * |
469 ngx_http_headers_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
326
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|
470 { |
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|
471 ngx_http_headers_conf_t *prev = parent; |
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|
472 ngx_http_headers_conf_t *conf = child; |
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parents:
diff
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|
473 |
4547
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Minor ngx_http_headers_filter_module.c code cleanup.
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|
474 if (conf->expires == NGX_HTTP_EXPIRES_UNSET) { |
2013 | 475 conf->expires = prev->expires; |
476 conf->expires_time = prev->expires_time; | |
477 | |
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|
478 if (conf->expires == NGX_HTTP_EXPIRES_UNSET) { |
2013 | 479 conf->expires = NGX_HTTP_EXPIRES_OFF; |
480 } | |
326
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|
481 } |
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|
482 |
573 | 483 if (conf->headers == NULL) { |
484 conf->headers = prev->headers; | |
485 } | |
486 | |
326
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|
487 return NGX_CONF_OK; |
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|
488 } |
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|
489 |
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parents:
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|
490 |
681 | 491 static ngx_int_t |
492 ngx_http_headers_filter_init(ngx_conf_t *cf) | |
493 { | |
494 ngx_http_next_header_filter = ngx_http_top_header_filter; | |
495 ngx_http_top_header_filter = ngx_http_headers_filter; | |
496 | |
497 return NGX_OK; | |
498 } | |
499 | |
500 | |
501 | 501 static char * |
502 ngx_http_headers_expires(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
326
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|
503 { |
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|
504 ngx_http_headers_conf_t *hcf = conf; |
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|
505 |
2013 | 506 ngx_uint_t minus, n; |
326
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|
507 ngx_str_t *value; |
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parents:
diff
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|
508 |
4547
2577c27cbffd
Minor ngx_http_headers_filter_module.c code cleanup.
Ruslan Ermilov <ru@nginx.com>
parents:
4491
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|
509 if (hcf->expires != NGX_HTTP_EXPIRES_UNSET) { |
326
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|
510 return "is duplicate"; |
8733703a37f3
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parents:
diff
changeset
|
511 } |
8733703a37f3
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diff
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|
512 |
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parents:
diff
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|
513 value = cf->args->elts; |
8733703a37f3
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parents:
diff
changeset
|
514 |
2013 | 515 if (cf->args->nelts == 2) { |
516 | |
517 if (ngx_strcmp(value[1].data, "epoch") == 0) { | |
518 hcf->expires = NGX_HTTP_EXPIRES_EPOCH; | |
519 return NGX_CONF_OK; | |
520 } | |
521 | |
522 if (ngx_strcmp(value[1].data, "max") == 0) { | |
523 hcf->expires = NGX_HTTP_EXPIRES_MAX; | |
524 return NGX_CONF_OK; | |
525 } | |
326
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diff
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|
526 |
2013 | 527 if (ngx_strcmp(value[1].data, "off") == 0) { |
528 hcf->expires = NGX_HTTP_EXPIRES_OFF; | |
529 return NGX_CONF_OK; | |
530 } | |
531 | |
532 hcf->expires = NGX_HTTP_EXPIRES_ACCESS; | |
533 | |
534 n = 1; | |
535 | |
536 } else { /* cf->args->nelts == 3 */ | |
537 | |
538 if (ngx_strcmp(value[1].data, "modified") != 0) { | |
539 return "invalid value"; | |
540 } | |
541 | |
542 hcf->expires = NGX_HTTP_EXPIRES_MODIFIED; | |
543 | |
544 n = 2; | |
729 | 545 } |
546 | |
2163 | 547 if (value[n].data[0] == '@') { |
548 value[n].data++; | |
549 value[n].len--; | |
550 minus = 0; | |
551 | |
552 if (hcf->expires == NGX_HTTP_EXPIRES_MODIFIED) { | |
4133
59b99f217c6d
Replaced "can not" with "cannot" and "could not" in a bunch of places.
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parents:
3516
diff
changeset
|
553 return "daily time cannot be used with \"modified\" parameter"; |
2163 | 554 } |
555 | |
556 hcf->expires = NGX_HTTP_EXPIRES_DAILY; | |
557 | |
558 } else if (value[n].data[0] == '+') { | |
2013 | 559 value[n].data++; |
560 value[n].len--; | |
326
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|
561 minus = 0; |
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|
562 |
2013 | 563 } else if (value[n].data[0] == '-') { |
564 value[n].data++; | |
565 value[n].len--; | |
326
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|
566 minus = 1; |
8733703a37f3
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parents:
diff
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|
567 |
8733703a37f3
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parents:
diff
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|
568 } else { |
8733703a37f3
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parents:
diff
changeset
|
569 minus = 0; |
8733703a37f3
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
570 } |
8733703a37f3
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parents:
diff
changeset
|
571 |
2013 | 572 hcf->expires_time = ngx_parse_time(&value[n], 1); |
501 | 573 |
4474 | 574 if (hcf->expires_time == (time_t) NGX_ERROR) { |
326
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575 return "invalid value"; |
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576 } |
577 | 577 |
2164 | 578 if (hcf->expires == NGX_HTTP_EXPIRES_DAILY |
579 && hcf->expires_time > 24 * 60 * 60) | |
580 { | |
581 return "daily time value must be less than 24 hours"; | |
582 } | |
583 | |
326
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584 if (minus) { |
2013 | 585 hcf->expires_time = - hcf->expires_time; |
326
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586 } |
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587 |
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588 return NGX_CONF_OK; |
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589 } |
573 | 590 |
591 | |
592 static char * | |
593 ngx_http_headers_add(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
594 { | |
595 ngx_http_headers_conf_t *hcf = conf; | |
596 | |
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597 ngx_str_t *value; |
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598 ngx_uint_t i; |
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599 ngx_http_header_val_t *hv; |
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600 ngx_http_set_header_t *set; |
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601 ngx_http_compile_complex_value_t ccv; |
573 | 602 |
603 value = cf->args->elts; | |
604 | |
605 if (hcf->headers == NULL) { | |
625 | 606 hcf->headers = ngx_array_create(cf->pool, 1, |
607 sizeof(ngx_http_header_val_t)); | |
573 | 608 if (hcf->headers == NULL) { |
609 return NGX_CONF_ERROR; | |
610 } | |
611 } | |
612 | |
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613 hv = ngx_array_push(hcf->headers); |
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614 if (hv == NULL) { |
573 | 615 return NGX_CONF_ERROR; |
616 } | |
617 | |
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618 hv->key = value[1]; |
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619 hv->handler = ngx_http_add_header; |
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620 hv->offset = 0; |
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621 hv->always = 0; |
625 | 622 |
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623 set = ngx_http_set_headers; |
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624 for (i = 0; set[i].name.len; i++) { |
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625 if (ngx_strcasecmp(value[1].data, set[i].name.data) != 0) { |
1363
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626 continue; |
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627 } |
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628 |
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629 hv->offset = set[i].offset; |
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630 hv->handler = set[i].handler; |
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631 |
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632 break; |
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633 } |
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634 |
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635 if (value[2].len == 0) { |
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636 ngx_memzero(&hv->value, sizeof(ngx_http_complex_value_t)); |
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637 return NGX_CONF_OK; |
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638 } |
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639 |
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640 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); |
625 | 641 |
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642 ccv.cf = cf; |
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643 ccv.value = &value[2]; |
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644 ccv.complex_value = &hv->value; |
625 | 645 |
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646 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { |
625 | 647 return NGX_CONF_ERROR; |
648 } | |
573 | 649 |
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650 if (cf->args->nelts == 3) { |
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651 return NGX_CONF_OK; |
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652 } |
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653 |
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654 if (ngx_strcmp(value[3].data, "always") != 0) { |
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655 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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656 "invalid parameter \"%V\"", &value[3]); |
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657 return NGX_CONF_ERROR; |
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658 } |
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659 |
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660 hv->always = 1; |
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661 |
573 | 662 return NGX_CONF_OK; |
663 } |