Mercurial > hg > nginx
annotate src/http/modules/ngx_http_browser_module.c @ 1960:1609b3c3d604
fix memory leak on resolver query send failure
author | Igor Sysoev <igor@sysoev.ru> |
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date | Wed, 09 Apr 2008 14:26:08 +0000 |
parents | 4c43e25d11ea |
children | b4661481f198 |
rev | line source |
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700 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4 */ | |
5 | |
6 | |
7 #include <ngx_config.h> | |
8 #include <ngx_core.h> | |
9 #include <ngx_http.h> | |
10 | |
11 | |
12 /* | |
13 * The module can check browser versions conforming to the following formats: | |
14 * X, X.X, X.X.X, and X.X.X.X. The maximum values of each format may be | |
15 * 4000, 4000.99, 4000.99.99, and 4000.99.99.99. | |
16 */ | |
17 | |
18 | |
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19 #define NGX_HTTP_MODERN_BROWSER 0 |
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20 #define NGX_HTTP_ANCIENT_BROWSER 1 |
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21 |
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22 |
700 | 23 typedef struct { |
24 u_char browser[12]; | |
25 size_t skip; | |
26 size_t add; | |
27 u_char name[12]; | |
28 } ngx_http_modern_browser_mask_t; | |
29 | |
30 | |
31 typedef struct { | |
32 ngx_uint_t version; | |
33 size_t skip; | |
34 size_t add; | |
35 u_char name[12]; | |
36 } ngx_http_modern_browser_t; | |
37 | |
38 | |
39 typedef struct { | |
40 ngx_str_t name; | |
41 ngx_http_get_variable_pt handler; | |
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42 uintptr_t data; |
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43 } ngx_http_browser_variable_t; |
700 | 44 |
45 | |
46 typedef struct { | |
47 ngx_array_t *modern_browsers; | |
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48 ngx_array_t *ancient_browsers; |
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49 ngx_http_variable_value_t *modern_browser_value; |
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50 ngx_http_variable_value_t *ancient_browser_value; |
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51 |
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52 unsigned modern_unlisted_browsers:1; |
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53 unsigned netscape4:1; |
700 | 54 } ngx_http_browser_conf_t; |
55 | |
56 | |
57 static ngx_int_t ngx_http_msie_variable(ngx_http_request_t *r, | |
58 ngx_http_variable_value_t *v, uintptr_t data); | |
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59 static ngx_int_t ngx_http_browser_variable(ngx_http_request_t *r, |
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60 ngx_http_variable_value_t *v, uintptr_t data); |
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61 |
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62 static ngx_uint_t ngx_http_browser(ngx_http_request_t *r, |
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63 ngx_http_browser_conf_t *cf); |
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64 |
700 | 65 static ngx_int_t ngx_http_browser_add_variable(ngx_conf_t *cf); |
66 static void *ngx_http_browser_create_conf(ngx_conf_t *cf); | |
67 static char *ngx_http_browser_merge_conf(ngx_conf_t *cf, void *parent, | |
68 void *child); | |
69 static int ngx_libc_cdecl ngx_http_modern_browser_sort(const void *one, | |
70 const void *two); | |
71 static char *ngx_http_modern_browser(ngx_conf_t *cf, ngx_command_t *cmd, | |
72 void *conf); | |
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73 static char *ngx_http_ancient_browser(ngx_conf_t *cf, ngx_command_t *cmd, |
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74 void *conf); |
700 | 75 static char *ngx_http_modern_browser_value(ngx_conf_t *cf, ngx_command_t *cmd, |
76 void *conf); | |
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77 static char *ngx_http_ancient_browser_value(ngx_conf_t *cf, ngx_command_t *cmd, |
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78 void *conf); |
700 | 79 |
80 | |
81 static ngx_command_t ngx_http_browser_commands[] = { | |
82 | |
83 { ngx_string("modern_browser"), | |
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84 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12, |
700 | 85 ngx_http_modern_browser, |
86 NGX_HTTP_LOC_CONF_OFFSET, | |
87 0, | |
88 NULL }, | |
89 | |
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90 { ngx_string("ancient_browser"), |
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91 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, |
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92 ngx_http_ancient_browser, |
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93 NGX_HTTP_LOC_CONF_OFFSET, |
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94 0, |
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95 NULL }, |
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96 |
700 | 97 { ngx_string("modern_browser_value"), |
98 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
99 ngx_http_modern_browser_value, | |
100 NGX_HTTP_LOC_CONF_OFFSET, | |
101 0, | |
102 NULL }, | |
103 | |
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104 { ngx_string("ancient_browser_value"), |
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105 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
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106 ngx_http_ancient_browser_value, |
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107 NGX_HTTP_LOC_CONF_OFFSET, |
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108 0, |
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109 NULL }, |
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110 |
700 | 111 ngx_null_command |
112 }; | |
113 | |
114 | |
115 static ngx_http_module_t ngx_http_browser_module_ctx = { | |
116 ngx_http_browser_add_variable, /* preconfiguration */ | |
117 NULL, /* postconfiguration */ | |
118 | |
119 NULL, /* create main configuration */ | |
120 NULL, /* init main configuration */ | |
121 | |
122 NULL, /* create server configuration */ | |
123 NULL, /* merge server configuration */ | |
124 | |
125 ngx_http_browser_create_conf, /* create location configuration */ | |
126 ngx_http_browser_merge_conf /* merge location configuration */ | |
127 }; | |
128 | |
129 | |
130 ngx_module_t ngx_http_browser_module = { | |
131 NGX_MODULE_V1, | |
132 &ngx_http_browser_module_ctx, /* module context */ | |
133 ngx_http_browser_commands, /* module directives */ | |
134 NGX_HTTP_MODULE, /* module type */ | |
135 NULL, /* init master */ | |
136 NULL, /* init module */ | |
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 | |
143 }; | |
144 | |
145 | |
146 static ngx_http_modern_browser_mask_t ngx_http_modern_browser_masks[] = { | |
147 | |
148 /* Opera must be the first browser to check */ | |
149 | |
150 /* | |
151 * "Opera/7.50 (X11; FreeBSD i386; U) [en]" | |
152 * "Mozilla/5.0 (X11; FreeBSD i386; U) Opera 7.50 [en]" | |
153 * "Mozilla/4.0 (compatible; MSIE 6.0; X11; FreeBSD i386) Opera 7.50 [en]" | |
154 * "Opera/8.0 (Windows NT 5.1; U; ru)" | |
155 * "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; en) Opera 8.0" | |
156 * "Opera/9.01 (X11; FreeBSD 6 i386; U; en)" | |
157 */ | |
158 | |
159 { "opera", | |
160 0, | |
161 sizeof("Opera ") - 1, | |
162 "Opera"}, | |
163 | |
164 /* "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)" */ | |
165 | |
166 { "msie", | |
167 sizeof("Mozilla/4.0 (compatible; ") - 1, | |
168 sizeof("MSIE ") - 1, | |
169 "MSIE "}, | |
170 | |
171 /* | |
172 * "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.0) Gecko/20020610" | |
173 * "Mozilla/5.0 (Windows; U; Windows NT 5.1; ru-RU; rv:1.5) Gecko/20031006" | |
174 * "Mozilla/5.0 (Windows; U; Windows NT 5.1; ru-RU; rv:1.6) Gecko/20040206 | |
175 * Firefox/0.8" | |
176 * "Mozilla/5.0 (Windows; U; Windows NT 5.1; ru-RU; rv:1.7.8) | |
177 * Gecko/20050511 Firefox/1.0.4" | |
178 * "Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.8.0.5) Gecko/20060729 | |
179 * Firefox/1.5.0.5" | |
180 */ | |
181 | |
182 { "gecko", | |
183 sizeof("Mozilla/5.0 (") - 1, | |
184 sizeof("rv:") - 1, | |
185 "rv:"}, | |
186 | |
187 /* | |
188 * "Mozilla/5.0 (Macintosh; U; PPC Mac OS X; ru-ru) AppleWebKit/125.2 | |
189 * (KHTML, like Gecko) Safari/125.7" | |
190 * "Mozilla/5.0 (SymbianOS/9.1; U; en-us) AppleWebKit/413 | |
191 * (KHTML, like Gecko) Safari/413" | |
192 * "Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en) AppleWebKit/418 | |
193 * (KHTML, like Gecko) Safari/417.9.3" | |
194 * "Mozilla/5.0 (Macintosh; U; PPC Mac OS X; ru-ru) AppleWebKit/418.8 | |
195 * (KHTML, like Gecko) Safari/419.3" | |
196 */ | |
197 | |
198 { "safari", | |
199 sizeof("Mozilla/5.0 (") - 1, | |
200 sizeof("Safari/") - 1, | |
201 "Safari/"}, | |
202 | |
203 /* | |
204 * "Mozilla/5.0 (compatible; Konqueror/3.1; Linux)" | |
205 * "Mozilla/5.0 (compatible; Konqueror/3.4; Linux) KHTML/3.4.2 (like Gecko)" | |
206 * "Mozilla/5.0 (compatible; Konqueror/3.5; FreeBSD) KHTML/3.5.1 | |
207 * (like Gecko)" | |
208 */ | |
209 | |
210 { "konqueror", | |
211 sizeof("Mozilla/5.0 (compatible; ") - 1, | |
212 sizeof("Konqueror/") - 1, | |
213 "Konqueror/"}, | |
214 | |
215 { "", 0, 0, "" } | |
216 | |
217 }; | |
218 | |
219 | |
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220 static ngx_http_browser_variable_t ngx_http_browsers[] = { |
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221 { ngx_string("msie"), ngx_http_msie_variable, 0 }, |
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222 { ngx_string("modern_browser"), ngx_http_browser_variable, |
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223 NGX_HTTP_MODERN_BROWSER }, |
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224 { ngx_string("ancient_browser"), ngx_http_browser_variable, |
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225 NGX_HTTP_ANCIENT_BROWSER }, |
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226 { ngx_null_string, NULL, 0 } |
700 | 227 }; |
228 | |
229 | |
230 static ngx_int_t | |
231 ngx_http_browser_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
232 uintptr_t data) | |
233 { | |
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234 ngx_uint_t rc; |
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235 ngx_http_browser_conf_t *cf; |
700 | 236 |
237 cf = ngx_http_get_module_loc_conf(r, ngx_http_browser_module); | |
238 | |
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239 rc = ngx_http_browser(r, cf); |
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240 |
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241 if (data == NGX_HTTP_MODERN_BROWSER && rc == NGX_HTTP_MODERN_BROWSER) { |
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242 *v = *cf->modern_browser_value; |
700 | 243 return NGX_OK; |
244 } | |
245 | |
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246 if (data == NGX_HTTP_ANCIENT_BROWSER && rc == NGX_HTTP_ANCIENT_BROWSER) { |
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247 *v = *cf->ancient_browser_value; |
700 | 248 return NGX_OK; |
249 } | |
250 | |
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251 *v = ngx_http_variable_null_value; |
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252 return NGX_OK; |
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253 } |
700 | 254 |
255 | |
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256 static ngx_uint_t |
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257 ngx_http_browser(ngx_http_request_t *r, ngx_http_browser_conf_t *cf) |
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258 { |
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259 size_t len; |
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260 u_char *name, *ua, *last, c; |
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261 ngx_str_t *ancient; |
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262 ngx_uint_t i, version, ver, scale; |
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263 ngx_http_modern_browser_t *modern; |
700 | 264 |
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265 if (r->headers_in.user_agent == NULL) { |
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266 if (cf->modern_unlisted_browsers) { |
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267 return NGX_HTTP_MODERN_BROWSER; |
700 | 268 } |
269 | |
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270 return NGX_HTTP_ANCIENT_BROWSER; |
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271 } |
700 | 272 |
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273 ua = r->headers_in.user_agent->value.data; |
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274 len = r->headers_in.user_agent->value.len; |
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275 last = ua + len; |
700 | 276 |
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277 if (cf->modern_browsers) { |
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278 modern = cf->modern_browsers->elts; |
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279 |
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280 for (i = 0; i < cf->modern_browsers->nelts; i++) { |
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281 name = ua + modern[i].skip; |
700 | 282 |
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283 if (name >= last) { |
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284 continue; |
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285 } |
700 | 286 |
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287 name = (u_char *) ngx_strstr(name, modern[i].name); |
700 | 288 |
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289 if (name == NULL) { |
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290 continue; |
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291 } |
700 | 292 |
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293 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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294 "browser: \"%s\"", name); |
700 | 295 |
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296 name += modern[i].add; |
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297 |
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298 if (name >= last) { |
700 | 299 continue; |
300 } | |
301 | |
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302 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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303 "version: \"%ui\" \"%s\"", modern[i].version, name); |
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304 |
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305 version = 0; |
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306 ver = 0; |
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307 scale = 1000000; |
700 | 308 |
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309 while (name < last) { |
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310 |
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311 c = *name++; |
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312 |
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313 if (c >= '0' && c <= '9') { |
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314 ver = ver * 10 + (c - '0'); |
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315 continue; |
700 | 316 } |
317 | |
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318 if (c == '.') { |
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319 version += ver * scale; |
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320 |
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321 if (version > modern[i].version) { |
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322 return NGX_HTTP_MODERN_BROWSER; |
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323 } |
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324 |
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325 ver = 0; |
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326 scale /= 100; |
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327 continue; |
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328 } |
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329 |
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330 break; |
700 | 331 } |
332 | |
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333 version += ver * scale; |
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334 |
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335 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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336 "version: \"%ui\" \"%ui\"", |
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337 modern[i].version, version); |
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338 |
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339 if (version >= modern[i].version) { |
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340 return NGX_HTTP_MODERN_BROWSER; |
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341 } |
700 | 342 } |
343 | |
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344 if (!cf->modern_unlisted_browsers) { |
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345 return NGX_HTTP_ANCIENT_BROWSER; |
700 | 346 } |
347 } | |
348 | |
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349 if (cf->netscape4) { |
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350 if (len > sizeof("Mozilla/4.72 ") - 1 |
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351 && ngx_strncmp(ua, "Mozilla/", sizeof("Mozilla/") - 1) == 0 |
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352 && ua[8] > '0' && ua[8] < '5') |
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353 { |
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354 return NGX_HTTP_ANCIENT_BROWSER; |
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355 } |
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356 } |
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357 |
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358 if (cf->ancient_browsers) { |
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359 ancient = cf->ancient_browsers->elts; |
700 | 360 |
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361 for (i = 0; i < cf->ancient_browsers->nelts; i++) { |
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362 if (len >= ancient[i].len |
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363 && ngx_strstr(ua, ancient[i].data) != NULL) |
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364 { |
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365 return NGX_HTTP_ANCIENT_BROWSER; |
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366 } |
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367 } |
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368 } |
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369 |
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370 if (cf->modern_unlisted_browsers) { |
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371 return NGX_HTTP_MODERN_BROWSER; |
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372 } |
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373 |
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374 return NGX_HTTP_ANCIENT_BROWSER; |
700 | 375 } |
376 | |
377 | |
378 static ngx_int_t | |
379 ngx_http_msie_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
380 uintptr_t data) | |
381 { | |
382 if (r->headers_in.msie) { | |
383 *v = ngx_http_variable_true_value; | |
384 return NGX_OK; | |
385 } | |
386 | |
387 *v = ngx_http_variable_null_value; | |
388 return NGX_OK; | |
389 } | |
390 | |
391 | |
392 static ngx_int_t | |
393 ngx_http_browser_add_variable(ngx_conf_t *cf) | |
394 { | |
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395 ngx_http_browser_variable_t *var; |
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396 ngx_http_variable_t *v; |
700 | 397 |
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398 for (var = ngx_http_browsers; var->name.len; var++) { |
700 | 399 |
1565 | 400 v = ngx_http_add_variable(cf, &var->name, NGX_HTTP_VAR_CHANGEABLE); |
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401 if (v == NULL) { |
700 | 402 return NGX_ERROR; |
403 } | |
404 | |
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405 v->get_handler = var->handler; |
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406 v->data = var->data; |
700 | 407 } |
408 | |
409 return NGX_OK; | |
410 } | |
411 | |
412 | |
413 static void * | |
414 ngx_http_browser_create_conf(ngx_conf_t *cf) | |
415 { | |
416 ngx_http_browser_conf_t *conf; | |
417 | |
418 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_browser_conf_t)); | |
419 if (conf == NULL) { | |
420 return NGX_CONF_ERROR; | |
421 } | |
422 | |
423 /* | |
424 * set by ngx_pcalloc(): | |
425 * | |
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426 * conf->modern_browsers = NULL; |
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427 * conf->ancient_browsers = NULL; |
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428 * conf->modern_browser_value = NULL; |
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429 * conf->ancient_browser_value = NULL; |
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430 * |
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431 * conf->modern_unlisted_browsers = 0; |
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432 * conf->netscape4 = 0; |
700 | 433 */ |
434 | |
435 return conf; | |
436 } | |
437 | |
438 | |
439 static char * | |
440 ngx_http_browser_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
441 { | |
442 ngx_http_browser_conf_t *prev = parent; | |
443 ngx_http_browser_conf_t *conf = child; | |
444 | |
445 ngx_uint_t i, n; | |
446 ngx_http_modern_browser_t *browsers, *opera; | |
447 | |
448 /* | |
449 * At the merge the skip field is used to store the browser slot, | |
450 * it will be used in sorting and then will overwritten | |
451 * with a real skip value. The zero value means Opera. | |
452 */ | |
453 | |
454 if (conf->modern_browsers == NULL) { | |
455 conf->modern_browsers = prev->modern_browsers; | |
456 | |
457 } else { | |
458 browsers = conf->modern_browsers->elts; | |
459 | |
460 for (i = 0; i < conf->modern_browsers->nelts; i++) { | |
461 if (browsers[i].skip == 0) { | |
462 goto found; | |
463 } | |
464 } | |
465 | |
466 /* | |
467 * Opera may contain MSIE string, so if Opera was not enumerated | |
468 * as modern browsers, then add it and set a unreachable version | |
469 */ | |
470 | |
471 opera = ngx_array_push(conf->modern_browsers); | |
472 if (opera == NULL) { | |
473 return NGX_CONF_ERROR; | |
474 } | |
475 | |
476 opera->skip = 0; | |
477 opera->version = 4001000000U; | |
478 | |
479 browsers = conf->modern_browsers->elts; | |
480 | |
481 found: | |
482 | |
483 ngx_qsort(browsers, (size_t) conf->modern_browsers->nelts, | |
484 sizeof(ngx_http_modern_browser_t), | |
485 ngx_http_modern_browser_sort); | |
486 | |
487 for (i = 0; i < conf->modern_browsers->nelts; i++) { | |
488 n = browsers[i].skip; | |
489 | |
490 browsers[i].skip = ngx_http_modern_browser_masks[n].skip; | |
491 browsers[i].add = ngx_http_modern_browser_masks[n].add; | |
492 (void) ngx_cpystrn(browsers[i].name, | |
493 ngx_http_modern_browser_masks[n].name, 12); | |
494 } | |
495 } | |
496 | |
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497 if (conf->ancient_browsers == NULL) { |
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498 conf->ancient_browsers = prev->ancient_browsers; |
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499 } |
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500 |
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501 if (conf->modern_browser_value == NULL) { |
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502 conf->modern_browser_value = prev->modern_browser_value; |
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503 } |
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504 |
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505 if (conf->modern_browser_value == NULL) { |
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506 conf->modern_browser_value = &ngx_http_variable_true_value; |
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507 } |
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508 |
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509 if (conf->ancient_browser_value == NULL) { |
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510 conf->ancient_browser_value = prev->ancient_browser_value; |
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511 } |
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512 |
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513 if (conf->ancient_browser_value == NULL) { |
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514 conf->ancient_browser_value = &ngx_http_variable_true_value; |
700 | 515 } |
516 | |
517 return NGX_CONF_OK; | |
518 } | |
519 | |
520 | |
521 static int ngx_libc_cdecl | |
522 ngx_http_modern_browser_sort(const void *one, const void *two) | |
523 { | |
524 ngx_http_modern_browser_t *first = (ngx_http_modern_browser_t *) one; | |
525 ngx_http_modern_browser_t *second = (ngx_http_modern_browser_t *) two; | |
526 | |
527 return (first->skip - second->skip); | |
528 } | |
529 | |
530 | |
531 static char * | |
532 ngx_http_modern_browser(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
533 { | |
534 ngx_http_browser_conf_t *bcf = conf; | |
535 | |
536 u_char c; | |
537 ngx_str_t *value; | |
538 ngx_uint_t i, n, version, ver, scale; | |
539 ngx_http_modern_browser_t *browser; | |
540 ngx_http_modern_browser_mask_t *mask; | |
541 | |
718
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542 value = cf->args->elts; |
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543 |
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544 if (cf->args->nelts == 2) { |
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545 if (ngx_strcmp(value[1].data, "unlisted") == 0) { |
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546 bcf->modern_unlisted_browsers = 1; |
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547 return NGX_CONF_OK; |
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548 } |
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549 |
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550 return NGX_CONF_ERROR; |
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551 } |
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552 |
700 | 553 if (bcf->modern_browsers == NULL) { |
718
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554 bcf->modern_browsers = ngx_array_create(cf->pool, 5, |
700 | 555 sizeof(ngx_http_modern_browser_t)); |
556 if (bcf->modern_browsers == NULL) { | |
557 return NGX_CONF_ERROR; | |
558 } | |
559 } | |
560 | |
561 browser = ngx_array_push(bcf->modern_browsers); | |
562 if (browser == NULL) { | |
563 return NGX_CONF_ERROR; | |
564 } | |
565 | |
566 mask = ngx_http_modern_browser_masks; | |
567 | |
568 for (n = 0; mask[n].browser[0] != '\0'; n++) { | |
569 if (ngx_strcasecmp(mask[n].browser, value[1].data) == 0) { | |
570 goto found; | |
571 } | |
572 } | |
573 | |
574 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
575 "unknown browser name \"%V\"", &value[1]); | |
576 | |
577 return NGX_CONF_ERROR; | |
578 | |
579 found: | |
580 | |
581 /* | |
582 * at this stage the skip field is used to store the browser slot, | |
583 * it will be used in sorting in merge stage and then will overwritten | |
584 * with a real value | |
585 */ | |
586 | |
587 browser->skip = n; | |
588 | |
589 version = 0; | |
590 ver = 0; | |
591 scale = 1000000; | |
592 | |
593 for (i = 0; i < value[2].len; i++) { | |
594 | |
595 c = value[2].data[i]; | |
596 | |
597 if (c >= '0' && c <= '9') { | |
598 ver = ver * 10 + (c - '0'); | |
599 continue; | |
600 } | |
601 | |
602 if (c == '.') { | |
603 version += ver * scale; | |
604 ver = 0; | |
605 scale /= 100; | |
606 continue; | |
607 } | |
608 | |
609 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
610 "invalid browser version \"%V\"", &value[2]); | |
611 | |
612 return NGX_CONF_ERROR; | |
613 } | |
614 | |
615 version += ver * scale; | |
616 | |
617 browser->version = version; | |
618 | |
619 return NGX_CONF_OK; | |
620 } | |
621 | |
622 | |
623 static char * | |
718
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624 ngx_http_ancient_browser(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
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625 { |
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626 ngx_http_browser_conf_t *bcf = conf; |
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627 |
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628 ngx_str_t *value, *browser; |
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629 ngx_uint_t i; |
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630 |
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631 value = cf->args->elts; |
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632 |
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633 for (i = 1; i < cf->args->nelts; i++) { |
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634 if (ngx_strcmp(value[i].data, "netscape4") == 0) { |
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635 bcf->netscape4 = 1; |
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636 continue; |
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637 } |
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638 |
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639 if (bcf->ancient_browsers == NULL) { |
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640 bcf->ancient_browsers = ngx_array_create(cf->pool, 4, |
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641 sizeof(ngx_str_t)); |
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642 if (bcf->ancient_browsers == NULL) { |
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643 return NGX_CONF_ERROR; |
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644 } |
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645 } |
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646 |
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647 browser = ngx_array_push(bcf->ancient_browsers); |
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648 if (browser == NULL) { |
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649 return NGX_CONF_ERROR; |
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650 } |
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651 |
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652 *browser = value[i]; |
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653 } |
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654 |
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655 return NGX_CONF_OK; |
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656 } |
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657 |
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658 |
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659 static char * |
700 | 660 ngx_http_modern_browser_value(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
661 { | |
662 ngx_http_browser_conf_t *bcf = conf; | |
663 | |
718
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664 ngx_str_t *value; |
700 | 665 |
718
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666 bcf->modern_browser_value = ngx_palloc(cf->pool, |
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667 sizeof(ngx_http_variable_value_t)); |
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668 if (bcf->modern_browser_value == NULL) { |
700 | 669 return NGX_CONF_ERROR; |
670 } | |
671 | |
718
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672 value = cf->args->elts; |
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673 |
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674 bcf->modern_browser_value->len = value[1].len; |
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675 bcf->modern_browser_value->valid = 1; |
1565 | 676 bcf->modern_browser_value->no_cacheable = 0; |
718
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677 bcf->modern_browser_value->not_found = 0; |
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678 bcf->modern_browser_value->data = value[1].data; |
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679 |
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680 return NGX_CONF_OK; |
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681 } |
700 | 682 |
718
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683 |
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684 static char * |
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685 ngx_http_ancient_browser_value(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
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686 { |
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687 ngx_http_browser_conf_t *bcf = conf; |
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688 |
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689 ngx_str_t *value; |
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690 |
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691 bcf->ancient_browser_value = ngx_palloc(cf->pool, |
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692 sizeof(ngx_http_variable_value_t)); |
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693 if (bcf->ancient_browser_value == NULL) { |
700 | 694 return NGX_CONF_ERROR; |
695 } | |
696 | |
718
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697 value = cf->args->elts; |
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698 |
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699 bcf->ancient_browser_value->len = value[1].len; |
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700 bcf->ancient_browser_value->valid = 1; |
1565 | 701 bcf->ancient_browser_value->no_cacheable = 0; |
718
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702 bcf->ancient_browser_value->not_found = 0; |
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703 bcf->ancient_browser_value->data = value[1].data; |
700 | 704 |
705 return NGX_CONF_OK; | |
706 } |