Mercurial > hg > nginx-quic
annotate src/http/modules/ngx_http_headers_filter_module.c @ 6699:9cf2dce316e5
Fixed log levels of configuration parsing errors.
All the errors that prevent loading configuration must be printed on the "emerg"
log level. Previously, nginx might silently fail to load configuration in some
cases as the default log level is "error".
author | Valentin Bartenev <vbart@nginx.com> |
---|---|
date | Tue, 20 Sep 2016 15:07:16 +0300 |
parents | 5dfc63c1d9ca |
children | be5cfa918bfc |
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; |
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48 time_t expires_time; |
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49 ngx_http_complex_value_t *expires_value; |
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50 ngx_array_t *headers; |
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51 } ngx_http_headers_conf_t; |
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52 |
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53 |
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54 static ngx_int_t ngx_http_set_expires(ngx_http_request_t *r, |
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55 ngx_http_headers_conf_t *conf); |
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56 static ngx_int_t ngx_http_parse_expires(ngx_str_t *value, |
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57 ngx_http_expires_t *expires, time_t *expires_time, char **err); |
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58 static ngx_int_t ngx_http_add_cache_control(ngx_http_request_t *r, |
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59 ngx_http_header_val_t *hv, ngx_str_t *value); |
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60 static ngx_int_t ngx_http_add_header(ngx_http_request_t *r, |
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61 ngx_http_header_val_t *hv, ngx_str_t *value); |
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62 static ngx_int_t ngx_http_set_last_modified(ngx_http_request_t *r, |
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63 ngx_http_header_val_t *hv, ngx_str_t *value); |
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64 static ngx_int_t ngx_http_set_response_header(ngx_http_request_t *r, |
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65 ngx_http_header_val_t *hv, ngx_str_t *value); |
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66 |
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67 static void *ngx_http_headers_create_conf(ngx_conf_t *cf); |
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68 static char *ngx_http_headers_merge_conf(ngx_conf_t *cf, |
573 | 69 void *parent, void *child); |
681 | 70 static ngx_int_t ngx_http_headers_filter_init(ngx_conf_t *cf); |
501 | 71 static char *ngx_http_headers_expires(ngx_conf_t *cf, ngx_command_t *cmd, |
72 void *conf); | |
573 | 73 static char *ngx_http_headers_add(ngx_conf_t *cf, ngx_command_t *cmd, |
74 void *conf); | |
326
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75 |
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76 |
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77 static ngx_http_set_header_t ngx_http_set_headers[] = { |
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78 |
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79 { ngx_string("Cache-Control"), 0, ngx_http_add_cache_control }, |
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80 |
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81 { ngx_string("Last-Modified"), |
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82 offsetof(ngx_http_headers_out_t, last_modified), |
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83 ngx_http_set_last_modified }, |
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84 |
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85 { ngx_string("ETag"), |
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86 offsetof(ngx_http_headers_out_t, etag), |
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87 ngx_http_set_response_header }, |
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88 |
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89 { ngx_null_string, 0, NULL } |
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90 }; |
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91 |
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92 |
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93 static ngx_command_t ngx_http_headers_filter_commands[] = { |
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94 |
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95 { ngx_string("expires"), |
573 | 96 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF |
2013 | 97 |NGX_CONF_TAKE12, |
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98 ngx_http_headers_expires, |
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99 NGX_HTTP_LOC_CONF_OFFSET, |
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100 0, |
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101 NULL}, |
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102 |
573 | 103 { ngx_string("add_header"), |
104 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF | |
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105 |NGX_CONF_TAKE23, |
573 | 106 ngx_http_headers_add, |
107 NGX_HTTP_LOC_CONF_OFFSET, | |
108 0, | |
109 NULL}, | |
110 | |
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111 ngx_null_command |
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112 }; |
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113 |
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114 |
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115 static ngx_http_module_t ngx_http_headers_filter_module_ctx = { |
509 | 116 NULL, /* preconfiguration */ |
681 | 117 ngx_http_headers_filter_init, /* postconfiguration */ |
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118 |
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119 NULL, /* create main configuration */ |
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120 NULL, /* init main configuration */ |
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121 |
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122 NULL, /* create server configuration */ |
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123 NULL, /* merge server configuration */ |
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124 |
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125 ngx_http_headers_create_conf, /* create location configuration */ |
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126 ngx_http_headers_merge_conf /* merge location configuration */ |
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127 }; |
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128 |
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129 |
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130 ngx_module_t ngx_http_headers_filter_module = { |
509 | 131 NGX_MODULE_V1, |
326
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132 &ngx_http_headers_filter_module_ctx, /* module context */ |
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133 ngx_http_headers_filter_commands, /* module directives */ |
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134 NGX_HTTP_MODULE, /* module type */ |
541 | 135 NULL, /* init master */ |
681 | 136 NULL, /* init module */ |
541 | 137 NULL, /* init process */ |
138 NULL, /* init thread */ | |
139 NULL, /* exit thread */ | |
140 NULL, /* exit process */ | |
141 NULL, /* exit master */ | |
142 NGX_MODULE_V1_PADDING | |
326
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143 }; |
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144 |
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145 |
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146 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; |
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147 |
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148 |
501 | 149 static ngx_int_t |
150 ngx_http_headers_filter(ngx_http_request_t *r) | |
326
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151 { |
1364 | 152 ngx_str_t value; |
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153 ngx_uint_t i, safe_status; |
625 | 154 ngx_http_header_val_t *h; |
326
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155 ngx_http_headers_conf_t *conf; |
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156 |
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157 conf = ngx_http_get_module_loc_conf(r, ngx_http_headers_filter_module); |
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158 |
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159 if ((conf->expires == NGX_HTTP_EXPIRES_OFF && conf->headers == NULL) |
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160 || r != r->main) |
543 | 161 { |
326
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162 return ngx_http_next_header_filter(r); |
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163 } |
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164 |
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165 switch (r->headers_out.status) { |
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166 |
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167 case NGX_HTTP_OK: |
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168 case NGX_HTTP_CREATED: |
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169 case NGX_HTTP_NO_CONTENT: |
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170 case NGX_HTTP_PARTIAL_CONTENT: |
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171 case NGX_HTTP_MOVED_PERMANENTLY: |
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172 case NGX_HTTP_MOVED_TEMPORARILY: |
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173 case NGX_HTTP_SEE_OTHER: |
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174 case NGX_HTTP_NOT_MODIFIED: |
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175 case NGX_HTTP_TEMPORARY_REDIRECT: |
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176 safe_status = 1; |
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177 break; |
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178 |
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179 default: |
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180 safe_status = 0; |
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181 break; |
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182 } |
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183 |
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184 if (conf->expires != NGX_HTTP_EXPIRES_OFF && safe_status) { |
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185 if (ngx_http_set_expires(r, conf) != NGX_OK) { |
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186 return NGX_ERROR; |
326
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187 } |
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188 } |
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189 |
573 | 190 if (conf->headers) { |
191 h = conf->headers->elts; | |
192 for (i = 0; i < conf->headers->nelts; i++) { | |
625 | 193 |
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194 if (!safe_status && !h[i].always) { |
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195 continue; |
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196 } |
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197 |
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198 if (ngx_http_complex_value(r, &h[i].value, &value) != NGX_OK) { |
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199 return NGX_ERROR; |
625 | 200 } |
201 | |
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202 if (h[i].handler(r, &h[i], &value) != NGX_OK) { |
625 | 203 return NGX_ERROR; |
204 } | |
573 | 205 } |
206 } | |
207 | |
326
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208 return ngx_http_next_header_filter(r); |
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209 } |
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210 |
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211 |
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212 static ngx_int_t |
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213 ngx_http_set_expires(ngx_http_request_t *r, ngx_http_headers_conf_t *conf) |
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214 { |
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215 char *err; |
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216 size_t len; |
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217 time_t now, expires_time, max_age; |
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218 ngx_str_t value; |
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219 ngx_int_t rc; |
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220 ngx_uint_t i; |
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221 ngx_table_elt_t *e, *cc, **ccp; |
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222 ngx_http_expires_t expires; |
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223 |
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224 expires = conf->expires; |
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225 expires_time = conf->expires_time; |
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226 |
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227 if (conf->expires_value != NULL) { |
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228 |
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229 if (ngx_http_complex_value(r, conf->expires_value, &value) != NGX_OK) { |
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230 return NGX_ERROR; |
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231 } |
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232 |
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233 rc = ngx_http_parse_expires(&value, &expires, &expires_time, &err); |
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234 |
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235 if (rc != NGX_OK) { |
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236 return NGX_OK; |
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237 } |
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238 |
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239 if (expires == NGX_HTTP_EXPIRES_OFF) { |
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240 return NGX_OK; |
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241 } |
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242 } |
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243 |
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244 e = r->headers_out.expires; |
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245 |
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246 if (e == NULL) { |
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247 |
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248 e = ngx_list_push(&r->headers_out.headers); |
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249 if (e == NULL) { |
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250 return NGX_ERROR; |
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251 } |
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252 |
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253 r->headers_out.expires = e; |
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254 |
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255 e->hash = 1; |
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256 ngx_str_set(&e->key, "Expires"); |
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257 } |
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258 |
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259 len = sizeof("Mon, 28 Sep 1970 06:00:00 GMT"); |
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260 e->value.len = len - 1; |
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261 |
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262 ccp = r->headers_out.cache_control.elts; |
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263 |
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264 if (ccp == NULL) { |
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265 |
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266 if (ngx_array_init(&r->headers_out.cache_control, r->pool, |
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267 1, sizeof(ngx_table_elt_t *)) |
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268 != NGX_OK) |
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269 { |
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270 return NGX_ERROR; |
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271 } |
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272 |
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273 ccp = ngx_array_push(&r->headers_out.cache_control); |
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274 if (ccp == NULL) { |
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275 return NGX_ERROR; |
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276 } |
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277 |
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278 cc = ngx_list_push(&r->headers_out.headers); |
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279 if (cc == NULL) { |
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280 return NGX_ERROR; |
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281 } |
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282 |
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283 cc->hash = 1; |
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284 ngx_str_set(&cc->key, "Cache-Control"); |
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285 *ccp = cc; |
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286 |
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287 } else { |
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288 for (i = 1; i < r->headers_out.cache_control.nelts; i++) { |
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289 ccp[i]->hash = 0; |
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290 } |
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291 |
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292 cc = ccp[0]; |
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293 } |
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294 |
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295 if (expires == NGX_HTTP_EXPIRES_EPOCH) { |
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296 e->value.data = (u_char *) "Thu, 01 Jan 1970 00:00:01 GMT"; |
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297 ngx_str_set(&cc->value, "no-cache"); |
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298 return NGX_OK; |
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299 } |
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300 |
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301 if (expires == NGX_HTTP_EXPIRES_MAX) { |
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302 e->value.data = (u_char *) "Thu, 31 Dec 2037 23:55:55 GMT"; |
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303 /* 10 years */ |
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304 ngx_str_set(&cc->value, "max-age=315360000"); |
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305 return NGX_OK; |
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306 } |
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307 |
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308 e->value.data = ngx_pnalloc(r->pool, len); |
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309 if (e->value.data == NULL) { |
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310 return NGX_ERROR; |
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311 } |
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312 |
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313 if (expires_time == 0 && expires != NGX_HTTP_EXPIRES_DAILY) { |
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314 ngx_memcpy(e->value.data, ngx_cached_http_time.data, |
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315 ngx_cached_http_time.len + 1); |
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316 ngx_str_set(&cc->value, "max-age=0"); |
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317 return NGX_OK; |
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318 } |
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319 |
2163 | 320 now = ngx_time(); |
321 | |
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322 if (expires == NGX_HTTP_EXPIRES_DAILY) { |
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323 expires_time = ngx_next_time(expires_time); |
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324 max_age = expires_time - now; |
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325 |
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326 } else if (expires == NGX_HTTP_EXPIRES_ACCESS |
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327 || r->headers_out.last_modified_time == -1) |
2013 | 328 { |
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329 max_age = expires_time; |
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330 expires_time += now; |
2163 | 331 |
2013 | 332 } else { |
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333 expires_time += r->headers_out.last_modified_time; |
2163 | 334 max_age = expires_time - now; |
2013 | 335 } |
336 | |
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337 ngx_http_time(e->value.data, expires_time); |
2013 | 338 |
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339 if (conf->expires_time < 0 || max_age < 0) { |
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340 ngx_str_set(&cc->value, "no-cache"); |
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341 return NGX_OK; |
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342 } |
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343 |
2049 | 344 cc->value.data = ngx_pnalloc(r->pool, |
345 sizeof("max-age=") + NGX_TIME_T_LEN + 1); | |
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346 if (cc->value.data == NULL) { |
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347 return NGX_ERROR; |
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348 } |
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349 |
2163 | 350 cc->value.len = ngx_sprintf(cc->value.data, "max-age=%T", max_age) |
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351 - cc->value.data; |
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352 |
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353 return NGX_OK; |
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354 } |
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355 |
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356 |
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357 static ngx_int_t |
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358 ngx_http_parse_expires(ngx_str_t *value, ngx_http_expires_t *expires, |
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359 time_t *expires_time, char **err) |
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360 { |
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361 ngx_uint_t minus; |
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362 |
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363 if (*expires != NGX_HTTP_EXPIRES_MODIFIED) { |
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364 |
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365 if (value->len == 5 && ngx_strncmp(value->data, "epoch", 5) == 0) { |
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366 *expires = NGX_HTTP_EXPIRES_EPOCH; |
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367 return NGX_OK; |
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368 } |
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369 |
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370 if (value->len == 3 && ngx_strncmp(value->data, "max", 3) == 0) { |
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371 *expires = NGX_HTTP_EXPIRES_MAX; |
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372 return NGX_OK; |
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373 } |
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374 |
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375 if (value->len == 3 && ngx_strncmp(value->data, "off", 3) == 0) { |
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376 *expires = NGX_HTTP_EXPIRES_OFF; |
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377 return NGX_OK; |
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|
378 } |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
379 } |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
380 |
6062
173561dfd567
Fixed invalid access to complex value defined as an empty string.
Sergey Kandaurov <pluknet@nginx.com>
parents:
5942
diff
changeset
|
381 if (value->len && value->data[0] == '@') { |
5942
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
382 value->data++; |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
383 value->len--; |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
384 minus = 0; |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
385 |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
386 if (*expires == NGX_HTTP_EXPIRES_MODIFIED) { |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
387 *err = "daily time cannot be used with \"modified\" parameter"; |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
388 return NGX_ERROR; |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
389 } |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
390 |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
391 *expires = NGX_HTTP_EXPIRES_DAILY; |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
392 |
6062
173561dfd567
Fixed invalid access to complex value defined as an empty string.
Sergey Kandaurov <pluknet@nginx.com>
parents:
5942
diff
changeset
|
393 } else if (value->len && value->data[0] == '+') { |
5942
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
394 value->data++; |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
395 value->len--; |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
396 minus = 0; |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
397 |
6062
173561dfd567
Fixed invalid access to complex value defined as an empty string.
Sergey Kandaurov <pluknet@nginx.com>
parents:
5942
diff
changeset
|
398 } else if (value->len && value->data[0] == '-') { |
5942
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
399 value->data++; |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
400 value->len--; |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
401 minus = 1; |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
402 |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
403 } else { |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
404 minus = 0; |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
405 } |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
406 |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
407 *expires_time = ngx_parse_time(value, 1); |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
408 |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
409 if (*expires_time == (time_t) NGX_ERROR) { |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
410 *err = "invalid value"; |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
411 return NGX_ERROR; |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
412 } |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
413 |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
414 if (*expires == NGX_HTTP_EXPIRES_DAILY |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
415 && *expires_time > 24 * 60 * 60) |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
416 { |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
417 *err = "daily time value must be less than 24 hours"; |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
418 return NGX_ERROR; |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
419 } |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
420 |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
421 if (minus) { |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
422 *expires_time = - *expires_time; |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
423 } |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
424 |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
425 return NGX_OK; |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
426 } |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
427 |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
428 |
4983f7d18fe3
Headers filter: variables support in expires (ticket #113).
Maxim Dounin <mdounin@mdounin.ru>
parents:
5941
diff
changeset
|
429 static ngx_int_t |
1363
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
430 ngx_http_add_header(ngx_http_request_t *r, ngx_http_header_val_t *hv, |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
431 ngx_str_t *value) |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
432 { |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
433 ngx_table_elt_t *h; |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
434 |
2406
008777fa59e0
do not add header if add_header ""
Igor Sysoev <igor@sysoev.ru>
parents:
2164
diff
changeset
|
435 if (value->len) { |
008777fa59e0
do not add header if add_header ""
Igor Sysoev <igor@sysoev.ru>
parents:
2164
diff
changeset
|
436 h = ngx_list_push(&r->headers_out.headers); |
008777fa59e0
do not add header if add_header ""
Igor Sysoev <igor@sysoev.ru>
parents:
2164
diff
changeset
|
437 if (h == NULL) { |
008777fa59e0
do not add header if add_header ""
Igor Sysoev <igor@sysoev.ru>
parents:
2164
diff
changeset
|
438 return NGX_ERROR; |
008777fa59e0
do not add header if add_header ""
Igor Sysoev <igor@sysoev.ru>
parents:
2164
diff
changeset
|
439 } |
008777fa59e0
do not add header if add_header ""
Igor Sysoev <igor@sysoev.ru>
parents:
2164
diff
changeset
|
440 |
4547
2577c27cbffd
Minor ngx_http_headers_filter_module.c code cleanup.
Ruslan Ermilov <ru@nginx.com>
parents:
4491
diff
changeset
|
441 h->hash = 1; |
2588
a6954ce88b80
use complex values in add_header, auth_basic_user_file,
Igor Sysoev <igor@sysoev.ru>
parents:
2406
diff
changeset
|
442 h->key = hv->key; |
2406
008777fa59e0
do not add header if add_header ""
Igor Sysoev <igor@sysoev.ru>
parents:
2164
diff
changeset
|
443 h->value = *value; |
1363
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
444 } |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
445 |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
446 return NGX_OK; |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
447 } |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
448 |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
449 |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
450 static ngx_int_t |
1365
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
451 ngx_http_add_cache_control(ngx_http_request_t *r, ngx_http_header_val_t *hv, |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
452 ngx_str_t *value) |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
453 { |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
454 ngx_table_elt_t *cc, **ccp; |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
455 |
5427
7ed23dcfea3d
Headers filter: empty Cache-Control is no longer added.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4975
diff
changeset
|
456 if (value->len == 0) { |
7ed23dcfea3d
Headers filter: empty Cache-Control is no longer added.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4975
diff
changeset
|
457 return NGX_OK; |
7ed23dcfea3d
Headers filter: empty Cache-Control is no longer added.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4975
diff
changeset
|
458 } |
7ed23dcfea3d
Headers filter: empty Cache-Control is no longer added.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4975
diff
changeset
|
459 |
1365
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
460 ccp = r->headers_out.cache_control.elts; |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
461 |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
462 if (ccp == NULL) { |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
463 |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
464 if (ngx_array_init(&r->headers_out.cache_control, r->pool, |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
465 1, sizeof(ngx_table_elt_t *)) |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
466 != NGX_OK) |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
467 { |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
468 return NGX_ERROR; |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
469 } |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
470 } |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
471 |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
472 ccp = ngx_array_push(&r->headers_out.cache_control); |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
473 if (ccp == NULL) { |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
474 return NGX_ERROR; |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
475 } |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
476 |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
477 cc = ngx_list_push(&r->headers_out.headers); |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
478 if (cc == NULL) { |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
479 return NGX_ERROR; |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
480 } |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
481 |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
482 cc->hash = 1; |
3516
dd1570b6f237
ngx_str_set() and ngx_str_null()
Igor Sysoev <igor@sysoev.ru>
parents:
3405
diff
changeset
|
483 ngx_str_set(&cc->key, "Cache-Control"); |
1365
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
484 cc->value = *value; |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
485 |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
486 *ccp = cc; |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
487 |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
488 return NGX_OK; |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
489 } |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
490 |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
491 |
d1dc7ef7c3ce
move "Cache-Control" header code to specific handler
Igor Sysoev <igor@sysoev.ru>
parents:
1364
diff
changeset
|
492 static ngx_int_t |
1363
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
493 ngx_http_set_last_modified(ngx_http_request_t *r, ngx_http_header_val_t *hv, |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
494 ngx_str_t *value) |
b0e114fb3bdc
use header specific handler in add_handler,
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
495 { |
4974
9d9ee85db35d
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496 if (ngx_http_set_response_header(r, hv, value) != NGX_OK) { |
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497 return NGX_ERROR; |
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498 } |
1655 | 499 |
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500 r->headers_out.last_modified_time = |
6180
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Moved ngx_http_parse_time() to core, renamed accordingly.
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501 (value->len) ? ngx_parse_http_time(value->data, value->len) : -1; |
1363
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502 |
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503 return NGX_OK; |
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504 } |
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505 |
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506 |
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507 static ngx_int_t |
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508 ngx_http_set_response_header(ngx_http_request_t *r, ngx_http_header_val_t *hv, |
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509 ngx_str_t *value) |
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510 { |
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511 ngx_table_elt_t *h, **old; |
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512 |
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513 old = (ngx_table_elt_t **) ((char *) &r->headers_out + hv->offset); |
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514 |
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515 if (value->len == 0) { |
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516 if (*old) { |
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517 (*old)->hash = 0; |
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518 *old = NULL; |
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519 } |
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520 |
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521 return NGX_OK; |
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522 } |
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523 |
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524 if (*old) { |
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525 h = *old; |
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526 |
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527 } else { |
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528 h = ngx_list_push(&r->headers_out.headers); |
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529 if (h == NULL) { |
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530 return NGX_ERROR; |
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531 } |
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532 |
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533 *old = h; |
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534 } |
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535 |
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536 h->hash = 1; |
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537 h->key = hv->key; |
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538 h->value = *value; |
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539 |
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540 return NGX_OK; |
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|
541 } |
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|
542 |
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543 |
501 | 544 static void * |
545 ngx_http_headers_create_conf(ngx_conf_t *cf) | |
577 | 546 { |
326
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547 ngx_http_headers_conf_t *conf; |
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548 |
573 | 549 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_headers_conf_t)); |
501 | 550 if (conf == NULL) { |
2912
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551 return NULL; |
326
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552 } |
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553 |
573 | 554 /* |
555 * set by ngx_pcalloc(): | |
556 * | |
557 * conf->headers = NULL; | |
2013 | 558 * conf->expires_time = 0; |
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559 * conf->expires_value = NULL; |
573 | 560 */ |
561 | |
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562 conf->expires = NGX_HTTP_EXPIRES_UNSET; |
326
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563 |
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564 return conf; |
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565 } |
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|
566 |
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|
567 |
501 | 568 static char * |
569 ngx_http_headers_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
326
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570 { |
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|
571 ngx_http_headers_conf_t *prev = parent; |
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|
572 ngx_http_headers_conf_t *conf = child; |
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|
573 |
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574 if (conf->expires == NGX_HTTP_EXPIRES_UNSET) { |
2013 | 575 conf->expires = prev->expires; |
576 conf->expires_time = prev->expires_time; | |
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|
577 conf->expires_value = prev->expires_value; |
2013 | 578 |
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|
579 if (conf->expires == NGX_HTTP_EXPIRES_UNSET) { |
2013 | 580 conf->expires = NGX_HTTP_EXPIRES_OFF; |
581 } | |
326
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|
582 } |
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|
583 |
573 | 584 if (conf->headers == NULL) { |
585 conf->headers = prev->headers; | |
586 } | |
587 | |
326
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|
588 return NGX_CONF_OK; |
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|
589 } |
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|
590 |
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|
591 |
681 | 592 static ngx_int_t |
593 ngx_http_headers_filter_init(ngx_conf_t *cf) | |
594 { | |
595 ngx_http_next_header_filter = ngx_http_top_header_filter; | |
596 ngx_http_top_header_filter = ngx_http_headers_filter; | |
597 | |
598 return NGX_OK; | |
599 } | |
600 | |
601 | |
501 | 602 static char * |
603 ngx_http_headers_expires(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
326
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|
604 { |
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|
605 ngx_http_headers_conf_t *hcf = conf; |
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|
606 |
5942
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607 char *err; |
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|
608 ngx_str_t *value; |
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|
609 ngx_int_t rc; |
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|
610 ngx_uint_t n; |
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|
611 ngx_http_complex_value_t cv; |
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|
612 ngx_http_compile_complex_value_t ccv; |
326
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diff
changeset
|
613 |
4547
2577c27cbffd
Minor ngx_http_headers_filter_module.c code cleanup.
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|
614 if (hcf->expires != NGX_HTTP_EXPIRES_UNSET) { |
326
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|
615 return "is duplicate"; |
8733703a37f3
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diff
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|
616 } |
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|
617 |
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|
618 value = cf->args->elts; |
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diff
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|
619 |
2013 | 620 if (cf->args->nelts == 2) { |
621 | |
622 hcf->expires = NGX_HTTP_EXPIRES_ACCESS; | |
623 | |
624 n = 1; | |
625 | |
626 } else { /* cf->args->nelts == 3 */ | |
627 | |
628 if (ngx_strcmp(value[1].data, "modified") != 0) { | |
629 return "invalid value"; | |
630 } | |
631 | |
632 hcf->expires = NGX_HTTP_EXPIRES_MODIFIED; | |
633 | |
634 n = 2; | |
729 | 635 } |
636 | |
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|
637 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); |
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|
638 |
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|
639 ccv.cf = cf; |
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|
640 ccv.value = &value[n]; |
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|
641 ccv.complex_value = &cv; |
2163 | 642 |
5942
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|
643 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { |
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|
644 return NGX_CONF_ERROR; |
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|
645 } |
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|
646 |
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|
647 if (cv.lengths != NULL) { |
4983f7d18fe3
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|
648 |
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|
649 hcf->expires_value = ngx_palloc(cf->pool, |
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|
650 sizeof(ngx_http_complex_value_t)); |
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|
651 if (hcf->expires_value == NULL) { |
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|
652 return NGX_CONF_ERROR; |
2163 | 653 } |
654 | |
5942
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|
655 *hcf->expires_value = cv; |
326
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656 |
5942
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Headers filter: variables support in expires (ticket #113).
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657 return NGX_CONF_OK; |
326
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658 } |
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659 |
5942
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660 rc = ngx_http_parse_expires(&value[n], &hcf->expires, &hcf->expires_time, |
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661 &err); |
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662 if (rc != NGX_OK) { |
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663 return err; |
326
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664 } |
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665 |
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666 return NGX_CONF_OK; |
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667 } |
573 | 668 |
669 | |
670 static char * | |
671 ngx_http_headers_add(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
672 { | |
673 ngx_http_headers_conf_t *hcf = conf; | |
674 | |
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675 ngx_str_t *value; |
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676 ngx_uint_t i; |
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677 ngx_http_header_val_t *hv; |
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678 ngx_http_set_header_t *set; |
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679 ngx_http_compile_complex_value_t ccv; |
573 | 680 |
681 value = cf->args->elts; | |
682 | |
683 if (hcf->headers == NULL) { | |
625 | 684 hcf->headers = ngx_array_create(cf->pool, 1, |
685 sizeof(ngx_http_header_val_t)); | |
573 | 686 if (hcf->headers == NULL) { |
687 return NGX_CONF_ERROR; | |
688 } | |
689 } | |
690 | |
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691 hv = ngx_array_push(hcf->headers); |
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692 if (hv == NULL) { |
573 | 693 return NGX_CONF_ERROR; |
694 } | |
695 | |
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696 hv->key = value[1]; |
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697 hv->handler = ngx_http_add_header; |
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698 hv->offset = 0; |
5817
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699 hv->always = 0; |
625 | 700 |
2588
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701 set = ngx_http_set_headers; |
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702 for (i = 0; set[i].name.len; i++) { |
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703 if (ngx_strcasecmp(value[1].data, set[i].name.data) != 0) { |
1363
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704 continue; |
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705 } |
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706 |
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707 hv->offset = set[i].offset; |
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708 hv->handler = set[i].handler; |
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709 |
1363
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710 break; |
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711 } |
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712 |
2605
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713 if (value[2].len == 0) { |
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714 ngx_memzero(&hv->value, sizeof(ngx_http_complex_value_t)); |
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715 |
6405
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716 } else { |
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Ruslan Ermilov <ru@nginx.com>
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717 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); |
625 | 718 |
6405
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719 ccv.cf = cf; |
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720 ccv.value = &value[2]; |
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721 ccv.complex_value = &hv->value; |
625 | 722 |
6405
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723 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { |
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724 return NGX_CONF_ERROR; |
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725 } |
625 | 726 } |
573 | 727 |
5817
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728 if (cf->args->nelts == 3) { |
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729 return NGX_CONF_OK; |
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730 } |
74ffe03555d0
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|
731 |
74ffe03555d0
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diff
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732 if (ngx_strcmp(value[3].data, "always") != 0) { |
74ffe03555d0
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diff
changeset
|
733 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
74ffe03555d0
Headers filter: "add_header" with "always" parameter (ticket #98).
Sergey Kandaurov <pluknet@nginx.com>
parents:
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diff
changeset
|
734 "invalid parameter \"%V\"", &value[3]); |
74ffe03555d0
Headers filter: "add_header" with "always" parameter (ticket #98).
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diff
changeset
|
735 return NGX_CONF_ERROR; |
74ffe03555d0
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diff
changeset
|
736 } |
74ffe03555d0
Headers filter: "add_header" with "always" parameter (ticket #98).
Sergey Kandaurov <pluknet@nginx.com>
parents:
5427
diff
changeset
|
737 |
74ffe03555d0
Headers filter: "add_header" with "always" parameter (ticket #98).
Sergey Kandaurov <pluknet@nginx.com>
parents:
5427
diff
changeset
|
738 hv->always = 1; |
74ffe03555d0
Headers filter: "add_header" with "always" parameter (ticket #98).
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diff
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|
739 |
573 | 740 return NGX_CONF_OK; |
741 } |