Mercurial > hg > nginx
annotate src/http/modules/ngx_http_geo_module.c @ 2399:aecf0755cee3
$geo variable support
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Thu, 11 Dec 2008 09:46:45 +0000 |
parents | f2e0e1fa87f0 |
children | 39f3b4f9989e |
rev | line source |
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485 | 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 typedef struct { | |
2399 | 13 u_short start; |
14 u_short end; | |
15 ngx_http_variable_value_t *value; | |
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16 } ngx_http_geo_range_t; |
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17 |
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18 |
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19 typedef struct { |
2399 | 20 ngx_http_geo_range_t *ranges; |
21 ngx_uint_t n; | |
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22 } ngx_http_geo_low_ranges_t; |
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23 |
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24 |
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25 typedef struct { |
2399 | 26 ngx_http_geo_low_ranges_t low[0x10000]; |
27 ngx_http_variable_value_t *default_value; | |
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28 } ngx_http_geo_high_ranges_t; |
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29 |
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30 |
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31 typedef struct { |
2399 | 32 ngx_http_variable_value_t *value; |
33 ngx_str_t *net; | |
34 ngx_http_geo_high_ranges_t *high; | |
35 ngx_radix_tree_t *tree; | |
36 ngx_rbtree_t rbtree; | |
37 ngx_rbtree_node_t sentinel; | |
38 ngx_pool_t *pool; | |
39 ngx_pool_t *temp_pool; | |
589 | 40 } ngx_http_geo_conf_ctx_t; |
485 | 41 |
42 | |
2399 | 43 typedef struct { |
44 union { | |
45 ngx_radix_tree_t *tree; | |
46 ngx_http_geo_high_ranges_t *high; | |
47 } u; | |
48 | |
49 ngx_int_t index; | |
50 } ngx_http_geo_ctx_t; | |
51 | |
52 | |
53 static in_addr_t ngx_http_geo_addr(ngx_http_request_t *r, | |
54 ngx_http_geo_ctx_t *ctx); | |
485 | 55 static char *ngx_http_geo_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); |
56 static char *ngx_http_geo(ngx_conf_t *cf, ngx_command_t *dummy, void *conf); | |
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57 static char *ngx_http_geo_range(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx, |
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58 ngx_str_t *value); |
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59 static char *ngx_http_geo_add_range(ngx_conf_t *cf, |
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60 ngx_http_geo_conf_ctx_t *ctx, in_addr_t start, in_addr_t end); |
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61 static ngx_uint_t ngx_http_geo_delete_range(ngx_conf_t *cf, |
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62 ngx_http_geo_conf_ctx_t *ctx, in_addr_t start, in_addr_t end); |
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63 static char *ngx_http_geo_cidr(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx, |
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64 ngx_str_t *value); |
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65 static ngx_http_variable_value_t *ngx_http_geo_value(ngx_conf_t *cf, |
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66 ngx_http_geo_conf_ctx_t *ctx, ngx_str_t *value); |
485 | 67 |
68 | |
69 static ngx_command_t ngx_http_geo_commands[] = { | |
70 | |
71 { ngx_string("geo"), | |
2399 | 72 NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE12, |
485 | 73 ngx_http_geo_block, |
74 NGX_HTTP_MAIN_CONF_OFFSET, | |
75 0, | |
76 NULL }, | |
77 | |
78 ngx_null_command | |
79 }; | |
80 | |
81 | |
82 static ngx_http_module_t ngx_http_geo_module_ctx = { | |
509 | 83 NULL, /* preconfiguration */ |
84 NULL, /* postconfiguration */ | |
485 | 85 |
86 NULL, /* create main configuration */ | |
87 NULL, /* init main configuration */ | |
88 | |
89 NULL, /* create server configuration */ | |
90 NULL, /* merge server configuration */ | |
91 | |
92 NULL, /* create location configuration */ | |
93 NULL /* merge location configuration */ | |
94 }; | |
95 | |
96 | |
97 ngx_module_t ngx_http_geo_module = { | |
509 | 98 NGX_MODULE_V1, |
485 | 99 &ngx_http_geo_module_ctx, /* module context */ |
100 ngx_http_geo_commands, /* module directives */ | |
101 NGX_HTTP_MODULE, /* module type */ | |
541 | 102 NULL, /* init master */ |
485 | 103 NULL, /* init module */ |
541 | 104 NULL, /* init process */ |
105 NULL, /* init thread */ | |
106 NULL, /* exit thread */ | |
107 NULL, /* exit process */ | |
108 NULL, /* exit master */ | |
109 NGX_MODULE_V1_PADDING | |
485 | 110 }; |
111 | |
112 | |
113 /* AF_INET only */ | |
114 | |
573 | 115 static ngx_int_t |
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116 ngx_http_geo_cidr_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, |
573 | 117 uintptr_t data) |
485 | 118 { |
2399 | 119 ngx_http_geo_ctx_t *ctx = (ngx_http_geo_ctx_t *) data; |
485 | 120 |
573 | 121 ngx_http_variable_value_t *vv; |
485 | 122 |
573 | 123 vv = (ngx_http_variable_value_t *) |
2399 | 124 ngx_radix32tree_find(ctx->u.tree, ngx_http_geo_addr(r, ctx)); |
489 | 125 |
573 | 126 *v = *vv; |
127 | |
2399 | 128 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
129 "http geo: %v", v); | |
489 | 130 |
573 | 131 return NGX_OK; |
485 | 132 } |
133 | |
134 | |
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135 static ngx_int_t |
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136 ngx_http_geo_range_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, |
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137 uintptr_t data) |
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138 { |
2399 | 139 ngx_http_geo_ctx_t *ctx = (ngx_http_geo_ctx_t *) data; |
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140 |
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141 in_addr_t addr; |
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142 ngx_uint_t i, n; |
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143 ngx_http_geo_range_t *range; |
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144 |
2399 | 145 *v = *ctx->u.high->default_value; |
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146 |
2399 | 147 addr = ngx_http_geo_addr(r, ctx); |
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148 |
2399 | 149 range = ctx->u.high->low[addr >> 16].ranges; |
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150 |
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151 n = addr & 0xffff; |
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152 |
2399 | 153 for (i = 0; i < ctx->u.high->low[addr >> 16].n; i++) { |
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154 if (n >= (ngx_uint_t) range[i].start |
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155 && n <= (ngx_uint_t) range[i].end) |
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156 { |
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157 *v = *range[i].value; |
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158 } |
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159 } |
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160 |
2399 | 161 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
162 "http geo: %v", v); | |
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163 |
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164 return NGX_OK; |
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165 } |
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166 |
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167 |
2399 | 168 static in_addr_t |
169 ngx_http_geo_addr(ngx_http_request_t *r, ngx_http_geo_ctx_t *ctx) | |
170 { | |
171 struct sockaddr_in *sin; | |
172 ngx_http_variable_value_t *v; | |
173 | |
174 if (ctx->index == -1) { | |
175 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
176 "http geo started: %V", &r->connection->addr_text); | |
177 | |
178 sin = (struct sockaddr_in *) r->connection->sockaddr; | |
179 return ntohl(sin->sin_addr.s_addr); | |
180 } | |
181 | |
182 v = ngx_http_get_flushed_variable(r, ctx->index); | |
183 | |
184 if (v == NULL || v->not_found) { | |
185 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
186 "http geo not found"); | |
187 | |
188 return 0; | |
189 } | |
190 | |
191 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
192 "http geo started: %v", v); | |
193 | |
194 return ntohl(ngx_inet_addr(v->data, v->len)); | |
195 } | |
196 | |
197 | |
489 | 198 static char * |
199 ngx_http_geo_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
485 | 200 { |
589 | 201 char *rv; |
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202 size_t len; |
2399 | 203 ngx_str_t *value, name; |
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204 ngx_uint_t i; |
589 | 205 ngx_conf_t save; |
206 ngx_pool_t *pool; | |
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207 ngx_array_t *a; |
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208 ngx_http_variable_t *var; |
2399 | 209 ngx_http_geo_ctx_t *geo; |
589 | 210 ngx_http_geo_conf_ctx_t ctx; |
485 | 211 |
501 | 212 value = cf->args->elts; |
213 | |
2399 | 214 geo = ngx_palloc(cf->pool, sizeof(ngx_http_geo_ctx_t)); |
215 if (geo == NULL) { | |
216 return NGX_CONF_ERROR; | |
217 } | |
218 | |
219 name = value[1]; | |
220 name.len--; | |
221 name.data++; | |
222 | |
223 if (cf->args->nelts == 3) { | |
224 | |
225 geo->index = ngx_http_get_variable_index(cf, &name); | |
226 if (geo->index == NGX_ERROR) { | |
227 return NGX_CONF_ERROR; | |
228 } | |
229 | |
230 name = value[2]; | |
231 name.len--; | |
232 name.data++; | |
233 | |
234 } else { | |
235 geo->index = -1; | |
236 } | |
237 | |
238 var = ngx_http_add_variable(cf, &name, NGX_HTTP_VAR_CHANGEABLE); | |
501 | 239 if (var == NULL) { |
485 | 240 return NGX_CONF_ERROR; |
241 } | |
242 | |
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243 pool = ngx_create_pool(16384, cf->log); |
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244 if (pool == NULL) { |
485 | 245 return NGX_CONF_ERROR; |
246 } | |
247 | |
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248 ctx.temp_pool = ngx_create_pool(16384, cf->log); |
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249 if (ctx.temp_pool == NULL) { |
485 | 250 return NGX_CONF_ERROR; |
251 } | |
252 | |
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253 ngx_rbtree_init(&ctx.rbtree, &ctx.sentinel, |
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254 ngx_http_variable_value_rbtree_insert); |
485 | 255 |
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256 ctx.high = NULL; |
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257 ctx.tree = NULL; |
589 | 258 ctx.pool = cf->pool; |
485 | 259 |
260 save = *cf; | |
261 cf->pool = pool; | |
589 | 262 cf->ctx = &ctx; |
485 | 263 cf->handler = ngx_http_geo; |
264 cf->handler_conf = conf; | |
265 | |
266 rv = ngx_conf_parse(cf, NULL); | |
267 | |
268 *cf = save; | |
269 | |
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270 if (ctx.high) { |
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271 |
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272 for (i = 0; i < 0x10000; i++) { |
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273 a = (ngx_array_t *) ctx.high->low[i].ranges; |
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274 |
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275 if (a == NULL || a->nelts == 0) { |
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276 continue; |
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277 } |
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278 |
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279 ctx.high->low[i].n = a->nelts; |
485 | 280 |
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281 len = a->nelts * sizeof(ngx_http_geo_range_t); |
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282 |
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283 ctx.high->low[i].ranges = ngx_palloc(cf->pool, len); |
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284 if (ctx.high->low[i].ranges == NULL ){ |
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285 return NGX_CONF_ERROR; |
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286 } |
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287 |
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288 ngx_memcpy(ctx.high->low[i].ranges, a->elts, len); |
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289 } |
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290 |
2399 | 291 geo->u.high = ctx.high; |
292 | |
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293 var->get_handler = ngx_http_geo_range_variable; |
2399 | 294 var->data = (uintptr_t) geo; |
485 | 295 |
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296 ngx_destroy_pool(ctx.temp_pool); |
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297 ngx_destroy_pool(pool); |
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298 |
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299 if (ctx.high->default_value == NULL) { |
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300 ctx.high->default_value = &ngx_http_variable_null_value; |
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301 } |
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302 |
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303 } else { |
2358
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304 if (ctx.tree == NULL) { |
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305 ctx.tree = ngx_radix_tree_create(cf->pool, -1); |
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306 if (ctx.tree == NULL) { |
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307 return NGX_CONF_ERROR; |
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308 } |
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309 } |
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310 |
2399 | 311 geo->u.tree = ctx.tree; |
312 | |
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313 var->get_handler = ngx_http_geo_cidr_variable; |
2399 | 314 var->data = (uintptr_t) geo; |
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315 |
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316 ngx_destroy_pool(ctx.temp_pool); |
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317 ngx_destroy_pool(pool); |
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318 |
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319 if (ngx_radix32tree_find(ctx.tree, 0) != NGX_RADIX_NO_VALUE) { |
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320 return rv; |
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321 } |
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322 |
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323 if (ngx_radix32tree_insert(ctx.tree, 0, 0, |
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324 (uintptr_t) &ngx_http_variable_null_value) |
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325 == NGX_ERROR) |
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326 { |
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327 return NGX_CONF_ERROR; |
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328 } |
485 | 329 } |
330 | |
331 return rv; | |
332 } | |
333 | |
334 | |
489 | 335 static char * |
336 ngx_http_geo(ngx_conf_t *cf, ngx_command_t *dummy, void *conf) | |
485 | 337 { |
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338 char *rv; |
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339 ngx_str_t *value, file; |
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340 ngx_http_geo_conf_ctx_t *ctx; |
485 | 341 |
589 | 342 ctx = cf->ctx; |
485 | 343 |
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344 value = cf->args->elts; |
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345 |
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346 if (cf->args->nelts == 1) { |
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347 |
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348 if (ngx_strcmp(value[0].data, "ranges") == 0) { |
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349 |
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350 if (ctx->tree) { |
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351 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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352 "the \"ranges\" directive must be " |
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353 "the first directive inside \"geo\" block"); |
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354 goto failed; |
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355 } |
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356 |
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357 ctx->high = ngx_pcalloc(ctx->pool, |
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358 sizeof(ngx_http_geo_high_ranges_t)); |
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359 if (ctx->high == NULL) { |
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360 goto failed; |
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361 } |
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362 |
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363 rv = NGX_CONF_OK; |
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364 |
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365 goto done; |
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366 } |
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367 } |
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368 |
485 | 369 if (cf->args->nelts != 2) { |
370 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
371 "invalid number of the geo parameters"); | |
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372 goto failed; |
485 | 373 } |
374 | |
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375 if (ngx_strcmp(value[0].data, "include") == 0) { |
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376 |
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377 file.len = value[1].len++; |
485 | 378 |
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379 file.data = ngx_pstrdup(ctx->temp_pool, &value[1]); |
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380 if (file.data == NULL) { |
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381 goto failed; |
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382 } |
485 | 383 |
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384 if (ngx_conf_full_name(cf->cycle, &file, 1) != NGX_OK){ |
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385 goto failed; |
485 | 386 } |
387 | |
388 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cf->log, 0, "include %s", file.data); | |
389 | |
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390 rv = ngx_conf_parse(cf, &file); |
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391 |
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392 goto done; |
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|
393 } |
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394 |
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395 if (ctx->high) { |
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396 rv = ngx_http_geo_range(cf, ctx, value); |
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397 |
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398 } else { |
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399 rv = ngx_http_geo_cidr(cf, ctx, value); |
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400 } |
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401 |
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402 done: |
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403 |
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404 ngx_reset_pool(cf->pool); |
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405 |
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406 return rv; |
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407 |
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408 failed: |
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409 |
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410 ngx_reset_pool(cf->pool); |
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411 |
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412 return NGX_CONF_ERROR; |
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413 } |
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414 |
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415 |
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416 static char * |
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417 ngx_http_geo_range(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx, |
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418 ngx_str_t *value) |
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419 { |
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420 u_char *p, *last; |
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421 in_addr_t start, end; |
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422 ngx_str_t *net; |
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423 ngx_uint_t del; |
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424 ngx_http_variable_value_t *old; |
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425 |
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426 if (ngx_strcmp(value[0].data, "default") == 0) { |
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427 |
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428 old = ctx->high->default_value; |
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429 |
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430 ctx->high->default_value = ngx_http_geo_value(cf, ctx, &value[1]); |
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431 if (ctx->high->default_value == NULL) { |
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432 return NGX_CONF_ERROR; |
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433 } |
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434 |
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435 if (old) { |
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*) descrease geo configuration memory usage
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parents:
2334
diff
changeset
|
436 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
437 "duplicate range \"%V\", value: \"%v\", old value: \"%v\"", |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
438 &value[0], ctx->high->default_value, old); |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
439 } |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
440 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
441 return NGX_CONF_OK; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
442 } |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
443 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
444 if (ngx_strcmp(value[0].data, "delete") == 0) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
445 net = &value[1]; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
446 del = 1; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
447 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
448 } else { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
449 net = &value[0]; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
450 del = 0; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
451 } |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
452 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
453 last = net->data + net->len; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
454 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
455 p = ngx_strlchr(net->data, last, '-'); |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
456 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
457 if (p == NULL) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
458 goto invalid; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
459 } |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
460 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
461 start = ngx_inet_addr(net->data, p - net->data); |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
462 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
463 if (start == INADDR_NONE) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
464 goto invalid; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
465 } |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
466 |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
467 start = ntohl(start); |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
468 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
469 p++; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
470 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
471 end = ngx_inet_addr(p, last - p); |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
472 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
473 if (end == INADDR_NONE) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
474 goto invalid; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
475 } |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
476 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
477 end = ntohl(end); |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
478 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
479 if (start > end) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
480 goto invalid; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
481 } |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
482 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
483 if (del) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
484 if (ngx_http_geo_delete_range(cf, ctx, start, end)) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
485 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
486 "no address range \"%V\" to delete", net); |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
487 } |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
488 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
489 return NGX_CONF_OK; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
490 } |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
491 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
492 ctx->value = ngx_http_geo_value(cf, ctx, &value[1]); |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
493 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
494 if (ctx->value == NULL) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
495 return NGX_CONF_ERROR; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
496 } |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
497 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
498 ctx->net = net; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
499 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
500 return ngx_http_geo_add_range(cf, ctx, start, end); |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
501 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
502 invalid: |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
503 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
504 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid range \"%V\"", net); |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
505 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
506 return NGX_CONF_ERROR; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
507 } |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
508 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
509 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
510 /* the add procedure is optimized to add a growing up sequence */ |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
511 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
512 static char * |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
513 ngx_http_geo_add_range(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx, |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
514 in_addr_t start, in_addr_t end) |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
515 { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
516 in_addr_t n; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
517 ngx_uint_t h, i, s, e; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
518 ngx_array_t *a; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
519 ngx_http_geo_range_t *range; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
520 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
521 for (n = start; n < end; n += 0x10000) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
522 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
523 h = n >> 16; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
524 s = n & 0xffff; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
525 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
526 if ((n | 0xffff) > end) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
527 e = end & 0xffff; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
528 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
529 } else { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
530 e = 0xffff; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
531 } |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
532 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
533 a = (ngx_array_t *) ctx->high->low[h].ranges; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
534 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
535 if (a == NULL) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
536 a = ngx_array_create(ctx->temp_pool, 64, |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
537 sizeof(ngx_http_geo_range_t)); |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
538 if (a == NULL) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
539 return NGX_CONF_ERROR; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
540 } |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
541 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
542 ctx->high->low[h].ranges = (ngx_http_geo_range_t *) a; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
543 } |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
544 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
545 i = a->nelts; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
546 range = a->elts; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
547 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
548 while (i) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
549 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
550 i--; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
551 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
552 if (e < (ngx_uint_t) range[i].start) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
553 continue; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
554 } |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
555 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
556 if (s > (ngx_uint_t) range[i].end) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
557 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
558 /* add after the range */ |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
559 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
560 range = ngx_array_push(a); |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
561 if (range == NULL) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
562 return NGX_CONF_ERROR; |
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563 } |
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564 |
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565 range = a->elts; |
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566 |
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567 ngx_memcpy(&range[i + 2], &range[i + 1], |
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568 (a->nelts - 2 - i) * sizeof(ngx_http_geo_range_t)); |
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569 |
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570 range = &range[i + 1]; |
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571 |
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572 goto next; |
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573 } |
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574 |
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575 if (s == (ngx_uint_t) range[i].start |
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576 && e == (ngx_uint_t) range[i].end) |
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577 { |
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578 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
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579 "duplicate range \"%V\", value: \"%v\", old value: \"%v\"", |
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580 ctx->net, ctx->value, range[i].value); |
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581 continue; |
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582 } |
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|
583 |
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584 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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585 "overlapped range \"%V\"", ctx->net); |
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586 |
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587 return NGX_CONF_ERROR; |
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|
588 } |
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589 |
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590 /* add the first range */ |
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|
591 |
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592 range = ngx_array_push(a); |
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593 if (range == NULL) { |
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594 return NGX_CONF_ERROR; |
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|
595 } |
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|
596 |
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|
597 next: |
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598 |
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599 range->start = (u_short) s; |
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600 range->end = (u_short) e; |
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601 range->value = ctx->value; |
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|
602 } |
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603 |
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604 return NGX_CONF_OK; |
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605 } |
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|
606 |
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607 |
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608 static ngx_uint_t |
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609 ngx_http_geo_delete_range(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx, |
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610 in_addr_t start, in_addr_t end) |
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611 { |
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612 in_addr_t n; |
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613 ngx_uint_t h, i, s, e, warn; |
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614 ngx_array_t *a; |
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615 ngx_http_geo_range_t *range; |
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616 |
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617 warn = 0; |
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618 |
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619 for (n = start; n < end; n += 0x10000) { |
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620 |
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621 h = n >> 16; |
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622 s = n & 0xffff; |
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623 |
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624 if ((n | 0xffff) > end) { |
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625 e = end & 0xffff; |
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626 |
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627 } else { |
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628 e = 0xffff; |
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|
629 } |
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|
630 |
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631 a = (ngx_array_t *) ctx->high->low[h].ranges; |
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632 |
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633 if (a == NULL) { |
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634 warn = 1; |
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635 continue; |
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636 } |
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|
637 |
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638 range = a->elts; |
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639 for (i = 0; i < a->nelts; i++) { |
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640 |
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641 if (s == (ngx_uint_t) range[i].start |
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642 && e == (ngx_uint_t) range[i].end) |
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|
643 { |
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644 ngx_memcpy(&range[i], &range[i + 1], |
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645 (a->nelts - 1 - i) * sizeof(ngx_http_geo_range_t)); |
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646 break; |
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647 } |
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|
648 |
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649 if (s != (ngx_uint_t) range[i].start |
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650 && e != (ngx_uint_t) range[i].end) |
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651 { |
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652 continue; |
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|
653 } |
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|
654 |
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655 warn = 1; |
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|
656 } |
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|
657 } |
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|
658 |
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|
659 return warn; |
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|
660 } |
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|
661 |
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|
662 |
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|
663 static char * |
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664 ngx_http_geo_cidr(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx, |
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665 ngx_str_t *value) |
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|
666 { |
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667 ngx_int_t rc, del; |
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668 ngx_str_t *net; |
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|
669 ngx_uint_t i; |
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670 ngx_inet_cidr_t cidrin; |
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671 ngx_http_variable_value_t *val, *old; |
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|
672 |
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|
673 if (ctx->tree == NULL) { |
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674 ctx->tree = ngx_radix_tree_create(ctx->pool, -1); |
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675 if (ctx->tree == NULL) { |
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676 return NGX_CONF_ERROR; |
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|
677 } |
485 | 678 } |
679 | |
680 if (ngx_strcmp(value[0].data, "default") == 0) { | |
681 cidrin.addr = 0; | |
682 cidrin.mask = 0; | |
2340
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683 net = &value[0]; |
485 | 684 |
685 } else { | |
2340
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686 if (ngx_strcmp(value[0].data, "delete") == 0) { |
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|
687 net = &value[1]; |
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|
688 del = 1; |
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|
689 |
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|
690 } else { |
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|
691 net = &value[0]; |
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|
692 del = 0; |
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|
693 } |
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|
694 |
2399 | 695 if (ngx_strcmp(net->data, "255.255.255.255") == 0) { |
696 cidrin.addr = 0xffffffff; | |
697 cidrin.mask = 0xffffffff; | |
1380
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698 |
2399 | 699 } else { |
700 rc = ngx_ptocidr(net, &cidrin); | |
485 | 701 |
2399 | 702 if (rc == NGX_ERROR) { |
703 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
704 "invalid network \"%V\"", net); | |
705 return NGX_CONF_ERROR; | |
706 } | |
707 | |
708 if (rc == NGX_DONE) { | |
709 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, | |
710 "low address bits of %V are meaningless", | |
711 net); | |
712 } | |
713 | |
714 cidrin.addr = ntohl(cidrin.addr); | |
715 cidrin.mask = ntohl(cidrin.mask); | |
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716 } |
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717 |
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718 if (del) { |
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719 if (ngx_radix32tree_delete(ctx->tree, cidrin.addr, cidrin.mask) |
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720 != NGX_OK) |
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721 { |
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722 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
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723 "no network \"%V\" to delete", net); |
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724 } |
2365 | 725 |
726 return NGX_CONF_OK; | |
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727 } |
485 | 728 } |
729 | |
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730 val = ngx_http_geo_value(cf, ctx, &value[1]); |
485 | 731 |
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732 if (val == NULL) { |
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733 return NGX_CONF_ERROR; |
485 | 734 } |
735 | |
553 | 736 for (i = 2; i; i--) { |
589 | 737 rc = ngx_radix32tree_insert(ctx->tree, cidrin.addr, cidrin.mask, |
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738 (uintptr_t) val); |
553 | 739 if (rc == NGX_OK) { |
740 return NGX_CONF_OK; | |
741 } | |
742 | |
743 if (rc == NGX_ERROR) { | |
744 return NGX_CONF_ERROR; | |
745 } | |
746 | |
747 /* rc == NGX_BUSY */ | |
748 | |
749 old = (ngx_http_variable_value_t *) | |
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750 ngx_radix32tree_find(ctx->tree, cidrin.addr & cidrin.mask); |
553 | 751 |
752 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, | |
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753 "duplicate network \"%V\", value: \"%v\", old value: \"%v\"", |
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754 net, val, old); |
553 | 755 |
589 | 756 rc = ngx_radix32tree_delete(ctx->tree, cidrin.addr, cidrin.mask); |
553 | 757 |
758 if (rc == NGX_ERROR) { | |
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759 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid radix tree"); |
553 | 760 return NGX_CONF_ERROR; |
761 } | |
485 | 762 } |
763 | |
553 | 764 return NGX_CONF_ERROR; |
485 | 765 } |
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766 |
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767 |
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768 static ngx_http_variable_value_t * |
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769 ngx_http_geo_value(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx, |
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770 ngx_str_t *value) |
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771 { |
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772 uint32_t hash; |
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773 ngx_http_variable_value_t *val; |
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774 ngx_http_variable_value_node_t *vvn; |
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775 |
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776 hash = ngx_crc32_long(value->data, value->len); |
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777 |
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778 val = ngx_http_variable_value_lookup(&ctx->rbtree, value, hash); |
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779 |
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780 if (val) { |
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781 return val; |
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782 } |
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783 |
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784 val = ngx_palloc(ctx->pool, sizeof(ngx_http_variable_value_t)); |
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785 if (val == NULL) { |
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786 return NULL; |
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787 } |
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788 |
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789 val->len = value->len; |
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790 val->data = ngx_pstrdup(ctx->pool, value); |
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791 if (val->data == NULL) { |
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792 return NULL; |
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793 } |
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794 |
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795 val->valid = 1; |
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796 val->no_cacheable = 0; |
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797 val->not_found = 0; |
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798 |
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799 vvn = ngx_palloc(ctx->temp_pool, sizeof(ngx_http_variable_value_node_t)); |
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800 if (vvn == NULL) { |
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801 return NULL; |
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802 } |
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803 |
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804 vvn->node.key = hash; |
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805 vvn->len = val->len; |
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806 vvn->value = val; |
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807 |
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808 ngx_rbtree_insert(&ctx->rbtree, &vvn->node); |
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809 |
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810 return val; |
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811 } |