Mercurial > hg > nginx-quic
annotate src/http/modules/ngx_http_headers_filter_module.c @ 5324:8ef1722143dc
SPDY: do not reject headers with empty value (ticket #396).
A quote from SPDY draft 2 specification: "The length of each name and
value must be greater than zero. A receiver of a zero-length name or
value must send a RST_STREAM with code PROTOCOL error."
But it appears that Chrome browser allows sending requests over SPDY/2
connection using JavaScript that contain headers with empty values.
For better compatibility across SPDY clients and to be compliant with
HTTP, such headers are no longer rejected.
Also, it is worth noting that in SPDY draft 3 the statement has been
changed so that it permits empty values for headers.
author | Valentin Bartenev <vbart@nginx.com> |
---|---|
date | Thu, 15 Aug 2013 19:16:09 +0400 |
parents | 837d0a1bc31c |
children | 7ed23dcfea3d |
rev | line source |
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441
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1 |
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2 /* |
444
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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 }; |
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32 |
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33 |
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34 typedef enum { |
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35 NGX_HTTP_EXPIRES_OFF, |
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36 NGX_HTTP_EXPIRES_EPOCH, |
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37 NGX_HTTP_EXPIRES_MAX, |
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38 NGX_HTTP_EXPIRES_ACCESS, |
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39 NGX_HTTP_EXPIRES_MODIFIED, |
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40 NGX_HTTP_EXPIRES_DAILY, |
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41 NGX_HTTP_EXPIRES_UNSET |
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42 } ngx_http_expires_t; |
2013 | 43 |
44 | |
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45 typedef struct { |
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46 ngx_http_expires_t expires; |
2013 | 47 time_t expires_time; |
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48 ngx_array_t *headers; |
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49 } ngx_http_headers_conf_t; |
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50 |
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51 |
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52 static ngx_int_t ngx_http_set_expires(ngx_http_request_t *r, |
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53 ngx_http_headers_conf_t *conf); |
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54 static ngx_int_t ngx_http_add_cache_control(ngx_http_request_t *r, |
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55 ngx_http_header_val_t *hv, ngx_str_t *value); |
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56 static ngx_int_t ngx_http_add_header(ngx_http_request_t *r, |
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57 ngx_http_header_val_t *hv, ngx_str_t *value); |
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58 static ngx_int_t ngx_http_set_last_modified(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_set_response_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 |
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63 static void *ngx_http_headers_create_conf(ngx_conf_t *cf); |
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64 static char *ngx_http_headers_merge_conf(ngx_conf_t *cf, |
573 | 65 void *parent, void *child); |
681 | 66 static ngx_int_t ngx_http_headers_filter_init(ngx_conf_t *cf); |
501 | 67 static char *ngx_http_headers_expires(ngx_conf_t *cf, ngx_command_t *cmd, |
68 void *conf); | |
573 | 69 static char *ngx_http_headers_add(ngx_conf_t *cf, ngx_command_t *cmd, |
70 void *conf); | |
326
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71 |
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72 |
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73 static ngx_http_set_header_t ngx_http_set_headers[] = { |
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74 |
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75 { ngx_string("Cache-Control"), 0, ngx_http_add_cache_control }, |
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76 |
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77 { ngx_string("Last-Modified"), |
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78 offsetof(ngx_http_headers_out_t, last_modified), |
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79 ngx_http_set_last_modified }, |
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80 |
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81 { ngx_string("ETag"), |
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82 offsetof(ngx_http_headers_out_t, etag), |
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83 ngx_http_set_response_header }, |
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84 |
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85 { ngx_null_string, 0, NULL } |
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86 }; |
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87 |
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88 |
326
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89 static ngx_command_t ngx_http_headers_filter_commands[] = { |
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90 |
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91 { ngx_string("expires"), |
573 | 92 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF |
2013 | 93 |NGX_CONF_TAKE12, |
326
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94 ngx_http_headers_expires, |
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95 NGX_HTTP_LOC_CONF_OFFSET, |
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96 0, |
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97 NULL}, |
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98 |
573 | 99 { ngx_string("add_header"), |
100 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF | |
101 |NGX_CONF_TAKE2, | |
102 ngx_http_headers_add, | |
103 NGX_HTTP_LOC_CONF_OFFSET, | |
104 0, | |
105 NULL}, | |
106 | |
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107 ngx_null_command |
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108 }; |
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109 |
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110 |
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111 static ngx_http_module_t ngx_http_headers_filter_module_ctx = { |
509 | 112 NULL, /* preconfiguration */ |
681 | 113 ngx_http_headers_filter_init, /* postconfiguration */ |
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114 |
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115 NULL, /* create main configuration */ |
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116 NULL, /* init main configuration */ |
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117 |
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118 NULL, /* create server configuration */ |
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119 NULL, /* merge server configuration */ |
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120 |
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121 ngx_http_headers_create_conf, /* create location configuration */ |
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122 ngx_http_headers_merge_conf /* merge location configuration */ |
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123 }; |
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124 |
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125 |
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126 ngx_module_t ngx_http_headers_filter_module = { |
509 | 127 NGX_MODULE_V1, |
326
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128 &ngx_http_headers_filter_module_ctx, /* module context */ |
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129 ngx_http_headers_filter_commands, /* module directives */ |
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130 NGX_HTTP_MODULE, /* module type */ |
541 | 131 NULL, /* init master */ |
681 | 132 NULL, /* init module */ |
541 | 133 NULL, /* init process */ |
134 NULL, /* init thread */ | |
135 NULL, /* exit thread */ | |
136 NULL, /* exit process */ | |
137 NULL, /* exit master */ | |
138 NGX_MODULE_V1_PADDING | |
326
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139 }; |
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140 |
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141 |
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142 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; |
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143 |
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144 |
501 | 145 static ngx_int_t |
146 ngx_http_headers_filter(ngx_http_request_t *r) | |
326
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147 { |
1364 | 148 ngx_str_t value; |
509 | 149 ngx_uint_t i; |
625 | 150 ngx_http_header_val_t *h; |
326
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151 ngx_http_headers_conf_t *conf; |
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152 |
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153 conf = ngx_http_get_module_loc_conf(r, ngx_http_headers_filter_module); |
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154 |
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155 if ((conf->expires == NGX_HTTP_EXPIRES_OFF && conf->headers == NULL) |
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156 || r != r->main |
663 | 157 || (r->headers_out.status != NGX_HTTP_OK |
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158 && r->headers_out.status != NGX_HTTP_CREATED |
663 | 159 && r->headers_out.status != NGX_HTTP_NO_CONTENT |
4314
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Allowed add_header for proxied 206 replies.
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160 && r->headers_out.status != NGX_HTTP_PARTIAL_CONTENT |
663 | 161 && r->headers_out.status != NGX_HTTP_MOVED_PERMANENTLY |
162 && r->headers_out.status != NGX_HTTP_MOVED_TEMPORARILY | |
4491
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163 && r->headers_out.status != NGX_HTTP_SEE_OTHER |
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164 && r->headers_out.status != NGX_HTTP_NOT_MODIFIED |
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165 && r->headers_out.status != NGX_HTTP_TEMPORARY_REDIRECT)) |
543 | 166 { |
326
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167 return ngx_http_next_header_filter(r); |
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168 } |
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169 |
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170 if (conf->expires != NGX_HTTP_EXPIRES_OFF) { |
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171 if (ngx_http_set_expires(r, conf) != NGX_OK) { |
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172 return NGX_ERROR; |
326
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173 } |
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174 } |
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175 |
573 | 176 if (conf->headers) { |
177 h = conf->headers->elts; | |
178 for (i = 0; i < conf->headers->nelts; i++) { | |
625 | 179 |
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180 if (ngx_http_complex_value(r, &h[i].value, &value) != NGX_OK) { |
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181 return NGX_ERROR; |
625 | 182 } |
183 | |
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184 if (h[i].handler(r, &h[i], &value) != NGX_OK) { |
625 | 185 return NGX_ERROR; |
186 } | |
573 | 187 } |
188 } | |
189 | |
326
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190 return ngx_http_next_header_filter(r); |
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191 } |
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192 |
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193 |
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194 static ngx_int_t |
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195 ngx_http_set_expires(ngx_http_request_t *r, ngx_http_headers_conf_t *conf) |
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196 { |
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197 size_t len; |
2163 | 198 time_t now, expires_time, max_age; |
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199 ngx_uint_t i; |
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200 ngx_table_elt_t *expires, *cc, **ccp; |
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201 |
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202 expires = r->headers_out.expires; |
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203 |
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204 if (expires == NULL) { |
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205 |
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206 expires = ngx_list_push(&r->headers_out.headers); |
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207 if (expires == NULL) { |
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208 return NGX_ERROR; |
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209 } |
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210 |
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211 r->headers_out.expires = expires; |
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212 |
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213 expires->hash = 1; |
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214 ngx_str_set(&expires->key, "Expires"); |
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215 } |
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216 |
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217 len = sizeof("Mon, 28 Sep 1970 06:00:00 GMT"); |
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218 expires->value.len = len - 1; |
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219 |
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220 ccp = r->headers_out.cache_control.elts; |
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221 |
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222 if (ccp == NULL) { |
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223 |
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224 if (ngx_array_init(&r->headers_out.cache_control, r->pool, |
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225 1, sizeof(ngx_table_elt_t *)) |
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226 != NGX_OK) |
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227 { |
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228 return NGX_ERROR; |
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229 } |
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230 |
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231 ccp = ngx_array_push(&r->headers_out.cache_control); |
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232 if (ccp == NULL) { |
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233 return NGX_ERROR; |
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234 } |
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235 |
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236 cc = ngx_list_push(&r->headers_out.headers); |
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237 if (cc == NULL) { |
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238 return NGX_ERROR; |
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239 } |
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240 |
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241 cc->hash = 1; |
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242 ngx_str_set(&cc->key, "Cache-Control"); |
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243 *ccp = cc; |
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244 |
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245 } else { |
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246 for (i = 1; i < r->headers_out.cache_control.nelts; i++) { |
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247 ccp[i]->hash = 0; |
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248 } |
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249 |
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250 cc = ccp[0]; |
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251 } |
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252 |
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253 if (conf->expires == NGX_HTTP_EXPIRES_EPOCH) { |
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254 expires->value.data = (u_char *) "Thu, 01 Jan 1970 00:00:01 GMT"; |
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255 ngx_str_set(&cc->value, "no-cache"); |
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256 return NGX_OK; |
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257 } |
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258 |
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259 if (conf->expires == NGX_HTTP_EXPIRES_MAX) { |
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260 expires->value.data = (u_char *) "Thu, 31 Dec 2037 23:55:55 GMT"; |
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261 /* 10 years */ |
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262 ngx_str_set(&cc->value, "max-age=315360000"); |
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263 return NGX_OK; |
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264 } |
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265 |
2049 | 266 expires->value.data = ngx_pnalloc(r->pool, len); |
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267 if (expires->value.data == NULL) { |
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268 return NGX_ERROR; |
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269 } |
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270 |
4216 | 271 if (conf->expires_time == 0 && conf->expires != NGX_HTTP_EXPIRES_DAILY) { |
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272 ngx_memcpy(expires->value.data, ngx_cached_http_time.data, |
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273 ngx_cached_http_time.len + 1); |
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274 ngx_str_set(&cc->value, "max-age=0"); |
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275 return NGX_OK; |
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276 } |
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277 |
2163 | 278 now = ngx_time(); |
279 | |
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280 if (conf->expires == NGX_HTTP_EXPIRES_DAILY) { |
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281 expires_time = ngx_next_time(conf->expires_time); |
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282 max_age = expires_time - now; |
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283 |
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284 } else if (conf->expires == NGX_HTTP_EXPIRES_ACCESS |
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285 || r->headers_out.last_modified_time == -1) |
2013 | 286 { |
2163 | 287 expires_time = now + conf->expires_time; |
288 max_age = conf->expires_time; | |
289 | |
2013 | 290 } else { |
2163 | 291 expires_time = r->headers_out.last_modified_time + conf->expires_time; |
292 max_age = expires_time - now; | |
2013 | 293 } |
294 | |
2163 | 295 ngx_http_time(expires->value.data, expires_time); |
2013 | 296 |
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297 if (conf->expires_time < 0 || max_age < 0) { |
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298 ngx_str_set(&cc->value, "no-cache"); |
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299 return NGX_OK; |
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300 } |
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301 |
2049 | 302 cc->value.data = ngx_pnalloc(r->pool, |
303 sizeof("max-age=") + NGX_TIME_T_LEN + 1); | |
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304 if (cc->value.data == NULL) { |
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305 return NGX_ERROR; |
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306 } |
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307 |
2163 | 308 cc->value.len = ngx_sprintf(cc->value.data, "max-age=%T", max_age) |
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309 - cc->value.data; |
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310 |
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311 return NGX_OK; |
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312 } |
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313 |
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314 |
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315 static ngx_int_t |
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316 ngx_http_add_header(ngx_http_request_t *r, ngx_http_header_val_t *hv, |
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317 ngx_str_t *value) |
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318 { |
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319 ngx_table_elt_t *h; |
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320 |
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321 if (value->len) { |
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322 h = ngx_list_push(&r->headers_out.headers); |
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323 if (h == NULL) { |
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324 return NGX_ERROR; |
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325 } |
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326 |
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327 h->hash = 1; |
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328 h->key = hv->key; |
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329 h->value = *value; |
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330 } |
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331 |
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332 return NGX_OK; |
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333 } |
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334 |
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335 |
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336 static ngx_int_t |
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337 ngx_http_add_cache_control(ngx_http_request_t *r, ngx_http_header_val_t *hv, |
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338 ngx_str_t *value) |
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339 { |
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340 ngx_table_elt_t *cc, **ccp; |
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341 |
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342 ccp = r->headers_out.cache_control.elts; |
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343 |
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344 if (ccp == NULL) { |
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345 |
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346 if (ngx_array_init(&r->headers_out.cache_control, r->pool, |
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347 1, sizeof(ngx_table_elt_t *)) |
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348 != NGX_OK) |
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349 { |
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350 return NGX_ERROR; |
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351 } |
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352 } |
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353 |
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354 ccp = ngx_array_push(&r->headers_out.cache_control); |
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355 if (ccp == NULL) { |
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356 return NGX_ERROR; |
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357 } |
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358 |
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359 cc = ngx_list_push(&r->headers_out.headers); |
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360 if (cc == NULL) { |
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361 return NGX_ERROR; |
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362 } |
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363 |
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364 cc->hash = 1; |
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365 ngx_str_set(&cc->key, "Cache-Control"); |
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366 cc->value = *value; |
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367 |
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368 *ccp = cc; |
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369 |
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370 return NGX_OK; |
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371 } |
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372 |
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373 |
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374 static ngx_int_t |
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375 ngx_http_set_last_modified(ngx_http_request_t *r, ngx_http_header_val_t *hv, |
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376 ngx_str_t *value) |
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377 { |
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378 if (ngx_http_set_response_header(r, hv, value) != NGX_OK) { |
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379 return NGX_ERROR; |
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380 } |
1655 | 381 |
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382 r->headers_out.last_modified_time = |
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383 (value->len) ? ngx_http_parse_time(value->data, value->len) : -1; |
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384 |
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385 return NGX_OK; |
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386 } |
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387 |
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388 |
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389 static ngx_int_t |
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390 ngx_http_set_response_header(ngx_http_request_t *r, ngx_http_header_val_t *hv, |
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391 ngx_str_t *value) |
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392 { |
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393 ngx_table_elt_t *h, **old; |
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394 |
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395 old = (ngx_table_elt_t **) ((char *) &r->headers_out + hv->offset); |
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396 |
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397 if (value->len == 0) { |
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398 if (*old) { |
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399 (*old)->hash = 0; |
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400 *old = NULL; |
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401 } |
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402 |
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403 return NGX_OK; |
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404 } |
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405 |
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406 if (*old) { |
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407 h = *old; |
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408 |
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409 } else { |
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410 h = ngx_list_push(&r->headers_out.headers); |
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411 if (h == NULL) { |
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412 return NGX_ERROR; |
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413 } |
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414 |
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415 *old = h; |
4747
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416 } |
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417 |
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418 h->hash = 1; |
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419 h->key = hv->key; |
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420 h->value = *value; |
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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 |
501 | 426 static void * |
427 ngx_http_headers_create_conf(ngx_conf_t *cf) | |
577 | 428 { |
326
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429 ngx_http_headers_conf_t *conf; |
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430 |
573 | 431 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_headers_conf_t)); |
501 | 432 if (conf == NULL) { |
2912
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433 return NULL; |
326
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434 } |
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435 |
573 | 436 /* |
437 * set by ngx_pcalloc(): | |
438 * | |
439 * conf->headers = NULL; | |
2013 | 440 * conf->expires_time = 0; |
573 | 441 */ |
442 | |
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443 conf->expires = NGX_HTTP_EXPIRES_UNSET; |
326
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diff
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444 |
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parents:
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445 return conf; |
8733703a37f3
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parents:
diff
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446 } |
8733703a37f3
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parents:
diff
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|
447 |
8733703a37f3
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448 |
501 | 449 static char * |
450 ngx_http_headers_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
326
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|
451 { |
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|
452 ngx_http_headers_conf_t *prev = parent; |
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|
453 ngx_http_headers_conf_t *conf = child; |
8733703a37f3
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parents:
diff
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|
454 |
4547
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Minor ngx_http_headers_filter_module.c code cleanup.
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parents:
4491
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|
455 if (conf->expires == NGX_HTTP_EXPIRES_UNSET) { |
2013 | 456 conf->expires = prev->expires; |
457 conf->expires_time = prev->expires_time; | |
458 | |
4547
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Minor ngx_http_headers_filter_module.c code cleanup.
Ruslan Ermilov <ru@nginx.com>
parents:
4491
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|
459 if (conf->expires == NGX_HTTP_EXPIRES_UNSET) { |
2013 | 460 conf->expires = NGX_HTTP_EXPIRES_OFF; |
461 } | |
326
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parents:
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462 } |
8733703a37f3
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|
463 |
573 | 464 if (conf->headers == NULL) { |
465 conf->headers = prev->headers; | |
466 } | |
467 | |
326
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parents:
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468 return NGX_CONF_OK; |
8733703a37f3
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parents:
diff
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|
469 } |
8733703a37f3
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parents:
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|
470 |
8733703a37f3
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parents:
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|
471 |
681 | 472 static ngx_int_t |
473 ngx_http_headers_filter_init(ngx_conf_t *cf) | |
474 { | |
475 ngx_http_next_header_filter = ngx_http_top_header_filter; | |
476 ngx_http_top_header_filter = ngx_http_headers_filter; | |
477 | |
478 return NGX_OK; | |
479 } | |
480 | |
481 | |
501 | 482 static char * |
483 ngx_http_headers_expires(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
326
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parents:
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|
484 { |
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parents:
diff
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|
485 ngx_http_headers_conf_t *hcf = conf; |
8733703a37f3
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parents:
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|
486 |
2013 | 487 ngx_uint_t minus, n; |
326
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parents:
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|
488 ngx_str_t *value; |
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parents:
diff
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|
489 |
4547
2577c27cbffd
Minor ngx_http_headers_filter_module.c code cleanup.
Ruslan Ermilov <ru@nginx.com>
parents:
4491
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|
490 if (hcf->expires != NGX_HTTP_EXPIRES_UNSET) { |
326
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diff
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|
491 return "is duplicate"; |
8733703a37f3
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parents:
diff
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|
492 } |
8733703a37f3
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parents:
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|
493 |
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parents:
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|
494 value = cf->args->elts; |
8733703a37f3
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parents:
diff
changeset
|
495 |
2013 | 496 if (cf->args->nelts == 2) { |
497 | |
498 if (ngx_strcmp(value[1].data, "epoch") == 0) { | |
499 hcf->expires = NGX_HTTP_EXPIRES_EPOCH; | |
500 return NGX_CONF_OK; | |
501 } | |
502 | |
503 if (ngx_strcmp(value[1].data, "max") == 0) { | |
504 hcf->expires = NGX_HTTP_EXPIRES_MAX; | |
505 return NGX_CONF_OK; | |
506 } | |
326
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parents:
diff
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|
507 |
2013 | 508 if (ngx_strcmp(value[1].data, "off") == 0) { |
509 hcf->expires = NGX_HTTP_EXPIRES_OFF; | |
510 return NGX_CONF_OK; | |
511 } | |
512 | |
513 hcf->expires = NGX_HTTP_EXPIRES_ACCESS; | |
514 | |
515 n = 1; | |
516 | |
517 } else { /* cf->args->nelts == 3 */ | |
518 | |
519 if (ngx_strcmp(value[1].data, "modified") != 0) { | |
520 return "invalid value"; | |
521 } | |
522 | |
523 hcf->expires = NGX_HTTP_EXPIRES_MODIFIED; | |
524 | |
525 n = 2; | |
729 | 526 } |
527 | |
2163 | 528 if (value[n].data[0] == '@') { |
529 value[n].data++; | |
530 value[n].len--; | |
531 minus = 0; | |
532 | |
533 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
|
534 return "daily time cannot be used with \"modified\" parameter"; |
2163 | 535 } |
536 | |
537 hcf->expires = NGX_HTTP_EXPIRES_DAILY; | |
538 | |
539 } else if (value[n].data[0] == '+') { | |
2013 | 540 value[n].data++; |
541 value[n].len--; | |
326
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parents:
diff
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|
542 minus = 0; |
8733703a37f3
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parents:
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|
543 |
2013 | 544 } else if (value[n].data[0] == '-') { |
545 value[n].data++; | |
546 value[n].len--; | |
326
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parents:
diff
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|
547 minus = 1; |
8733703a37f3
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parents:
diff
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|
548 |
8733703a37f3
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parents:
diff
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|
549 } else { |
8733703a37f3
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parents:
diff
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|
550 minus = 0; |
8733703a37f3
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parents:
diff
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|
551 } |
8733703a37f3
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parents:
diff
changeset
|
552 |
2013 | 553 hcf->expires_time = ngx_parse_time(&value[n], 1); |
501 | 554 |
4474 | 555 if (hcf->expires_time == (time_t) NGX_ERROR) { |
326
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parents:
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|
556 return "invalid value"; |
8733703a37f3
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parents:
diff
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|
557 } |
577 | 558 |
2164 | 559 if (hcf->expires == NGX_HTTP_EXPIRES_DAILY |
560 && hcf->expires_time > 24 * 60 * 60) | |
561 { | |
562 return "daily time value must be less than 24 hours"; | |
563 } | |
564 | |
326
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parents:
diff
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|
565 if (minus) { |
2013 | 566 hcf->expires_time = - hcf->expires_time; |
326
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parents:
diff
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|
567 } |
8733703a37f3
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parents:
diff
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|
568 |
8733703a37f3
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parents:
diff
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|
569 return NGX_CONF_OK; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
570 } |
573 | 571 |
572 | |
573 static char * | |
574 ngx_http_headers_add(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
575 { | |
576 ngx_http_headers_conf_t *hcf = conf; | |
577 | |
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Igor Sysoev <igor@sysoev.ru>
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|
578 ngx_str_t *value; |
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use complex values in add_header, auth_basic_user_file,
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|
579 ngx_uint_t i; |
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use complex values in add_header, auth_basic_user_file,
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|
580 ngx_http_header_val_t *hv; |
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|
581 ngx_http_set_header_t *set; |
a6954ce88b80
use complex values in add_header, auth_basic_user_file,
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parents:
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diff
changeset
|
582 ngx_http_compile_complex_value_t ccv; |
573 | 583 |
584 value = cf->args->elts; | |
585 | |
586 if (hcf->headers == NULL) { | |
625 | 587 hcf->headers = ngx_array_create(cf->pool, 1, |
588 sizeof(ngx_http_header_val_t)); | |
573 | 589 if (hcf->headers == NULL) { |
590 return NGX_CONF_ERROR; | |
591 } | |
592 } | |
593 | |
2588
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diff
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|
594 hv = ngx_array_push(hcf->headers); |
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diff
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|
595 if (hv == NULL) { |
573 | 596 return NGX_CONF_ERROR; |
597 } | |
598 | |
2588
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diff
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|
599 hv->key = value[1]; |
a6954ce88b80
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diff
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|
600 hv->handler = ngx_http_add_header; |
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2406
diff
changeset
|
601 hv->offset = 0; |
625 | 602 |
2588
a6954ce88b80
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603 set = ngx_http_set_headers; |
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604 for (i = 0; set[i].name.len; i++) { |
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605 if (ngx_strcasecmp(value[1].data, set[i].name.data) != 0) { |
1363
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606 continue; |
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607 } |
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608 |
2588
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609 hv->offset = set[i].offset; |
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610 hv->handler = set[i].handler; |
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611 |
1363
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612 break; |
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613 } |
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614 |
2605
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615 if (value[2].len == 0) { |
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616 ngx_memzero(&hv->value, sizeof(ngx_http_complex_value_t)); |
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617 return NGX_CONF_OK; |
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618 } |
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619 |
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620 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); |
625 | 621 |
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622 ccv.cf = cf; |
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623 ccv.value = &value[2]; |
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624 ccv.complex_value = &hv->value; |
625 | 625 |
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626 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { |
625 | 627 return NGX_CONF_ERROR; |
628 } | |
573 | 629 |
630 return NGX_CONF_OK; | |
631 } |