Mercurial > hg > nginx-quic
annotate src/http/modules/ngx_http_headers_filter_module.c @ 5855:a0a14319968b
Removed duplicate initialization of the "rev" variable.
author | Valentin Bartenev <vbart@nginx.com> |
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date | Mon, 22 Sep 2014 19:48:23 +0400 |
parents | 74ffe03555d0 |
children | 36e61455a8f4 |
rev | line source |
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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; |
1363
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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 | |
4547
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Minor ngx_http_headers_filter_module.c code cleanup.
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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:
diff
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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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parents:
4491
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changeset
|
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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parents:
4491
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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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parents:
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|
488 } |
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parents:
diff
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|
489 |
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parents:
diff
changeset
|
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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parents:
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|
503 { |
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diff
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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
changeset
|
508 |
4547
2577c27cbffd
Minor ngx_http_headers_filter_module.c code cleanup.
Ruslan Ermilov <ru@nginx.com>
parents:
4491
diff
changeset
|
509 if (hcf->expires != NGX_HTTP_EXPIRES_UNSET) { |
326
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parents:
diff
changeset
|
510 return "is duplicate"; |
8733703a37f3
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parents:
diff
changeset
|
511 } |
8733703a37f3
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parents:
diff
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|
512 |
8733703a37f3
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
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.
Ruslan Ermilov <ru@nginx.com>
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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parents:
diff
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|
561 minus = 0; |
8733703a37f3
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parents:
diff
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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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parents:
diff
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|
566 minus = 1; |
8733703a37f3
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
567 |
8733703a37f3
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
568 } else { |
8733703a37f3
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
569 minus = 0; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
570 } |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
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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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parents:
diff
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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 } |