Mercurial > hg > nginx
annotate src/http/modules/ngx_http_geo_module.c @ 2340:22d2b6609853
*) descrease geo configuration memory usage
*) geo delete
*) geo ranges
author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 25 Nov 2008 15:59:06 +0000 |
parents | 6e30d64f919b |
children | ac0cf19eb582 |
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 { | |
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13 u_short start; |
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14 u_short end; |
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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 { |
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20 ngx_http_geo_range_t *ranges; |
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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 { |
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26 ngx_http_geo_low_ranges_t low[0x10000]; |
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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 { |
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32 ngx_http_variable_value_t *value; |
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33 ngx_str_t *net; |
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34 ngx_http_geo_high_ranges_t *high; |
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35 ngx_radix_tree_t *tree; |
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36 ngx_rbtree_t rbtree; |
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37 ngx_rbtree_node_t sentinel; |
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38 ngx_pool_t *pool; |
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39 ngx_pool_t *temp_pool; |
589 | 40 } ngx_http_geo_conf_ctx_t; |
485 | 41 |
42 | |
43 static char *ngx_http_geo_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); | |
44 static char *ngx_http_geo(ngx_conf_t *cf, ngx_command_t *dummy, void *conf); | |
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45 static char *ngx_http_geo_range(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx, |
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46 ngx_str_t *value); |
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47 static char *ngx_http_geo_add_range(ngx_conf_t *cf, |
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48 ngx_http_geo_conf_ctx_t *ctx, in_addr_t start, in_addr_t end); |
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49 static ngx_uint_t ngx_http_geo_delete_range(ngx_conf_t *cf, |
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50 ngx_http_geo_conf_ctx_t *ctx, in_addr_t start, in_addr_t end); |
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51 static char *ngx_http_geo_cidr(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx, |
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52 ngx_str_t *value); |
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53 static ngx_http_variable_value_t *ngx_http_geo_value(ngx_conf_t *cf, |
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54 ngx_http_geo_conf_ctx_t *ctx, ngx_str_t *value); |
485 | 55 |
56 | |
57 static ngx_command_t ngx_http_geo_commands[] = { | |
58 | |
59 { ngx_string("geo"), | |
60 NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE1, | |
61 ngx_http_geo_block, | |
62 NGX_HTTP_MAIN_CONF_OFFSET, | |
63 0, | |
64 NULL }, | |
65 | |
66 ngx_null_command | |
67 }; | |
68 | |
69 | |
70 static ngx_http_module_t ngx_http_geo_module_ctx = { | |
509 | 71 NULL, /* preconfiguration */ |
72 NULL, /* postconfiguration */ | |
485 | 73 |
74 NULL, /* create main configuration */ | |
75 NULL, /* init main configuration */ | |
76 | |
77 NULL, /* create server configuration */ | |
78 NULL, /* merge server configuration */ | |
79 | |
80 NULL, /* create location configuration */ | |
81 NULL /* merge location configuration */ | |
82 }; | |
83 | |
84 | |
85 ngx_module_t ngx_http_geo_module = { | |
509 | 86 NGX_MODULE_V1, |
485 | 87 &ngx_http_geo_module_ctx, /* module context */ |
88 ngx_http_geo_commands, /* module directives */ | |
89 NGX_HTTP_MODULE, /* module type */ | |
541 | 90 NULL, /* init master */ |
485 | 91 NULL, /* init module */ |
541 | 92 NULL, /* init process */ |
93 NULL, /* init thread */ | |
94 NULL, /* exit thread */ | |
95 NULL, /* exit process */ | |
96 NULL, /* exit master */ | |
97 NGX_MODULE_V1_PADDING | |
485 | 98 }; |
99 | |
100 | |
101 /* AF_INET only */ | |
102 | |
573 | 103 static ngx_int_t |
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104 ngx_http_geo_cidr_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, |
573 | 105 uintptr_t data) |
485 | 106 { |
501 | 107 ngx_radix_tree_t *tree = (ngx_radix_tree_t *) data; |
485 | 108 |
489 | 109 struct sockaddr_in *sin; |
573 | 110 ngx_http_variable_value_t *vv; |
485 | 111 |
489 | 112 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
113 "http geo started"); | |
114 | |
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115 sin = (struct sockaddr_in *) r->connection->sockaddr; |
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116 |
573 | 117 vv = (ngx_http_variable_value_t *) |
485 | 118 ngx_radix32tree_find(tree, ntohl(sin->sin_addr.s_addr)); |
489 | 119 |
573 | 120 *v = *vv; |
121 | |
489 | 122 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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123 "http geo: %V %v", &r->connection->addr_text, v); |
489 | 124 |
573 | 125 return NGX_OK; |
485 | 126 } |
127 | |
128 | |
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129 static ngx_int_t |
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130 ngx_http_geo_range_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, |
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131 uintptr_t data) |
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132 { |
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133 ngx_http_geo_high_ranges_t *high = (ngx_http_geo_high_ranges_t *) data; |
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134 |
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135 in_addr_t addr; |
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136 ngx_uint_t i, n; |
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137 struct sockaddr_in *sin; |
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138 ngx_http_geo_range_t *range; |
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139 |
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140 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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141 "http geo started"); |
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142 |
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143 sin = (struct sockaddr_in *) r->connection->sockaddr; |
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144 |
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145 *v = *high->default_value; |
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146 |
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147 addr = ntohl(sin->sin_addr.s_addr); |
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148 |
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149 range = high->low[addr >> 16].ranges; |
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150 |
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151 n = addr & 0xffff; |
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152 |
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153 for (i = 0; i < 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 |
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161 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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162 "http geo: %V %v", &r->connection->addr_text, 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 |
489 | 168 static char * |
169 ngx_http_geo_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
485 | 170 { |
589 | 171 char *rv; |
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172 size_t len; |
589 | 173 ngx_str_t *value, name; |
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174 ngx_uint_t i; |
589 | 175 ngx_conf_t save; |
176 ngx_pool_t *pool; | |
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177 ngx_array_t *a; |
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178 ngx_http_variable_t *var; |
589 | 179 ngx_http_geo_conf_ctx_t ctx; |
485 | 180 |
501 | 181 value = cf->args->elts; |
182 | |
183 name = value[1]; | |
184 | |
185 if (name.data[0] != '$') { | |
186 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, | |
187 "\"%V\" variable name should start with '$'", | |
188 &value[1]); | |
189 } else { | |
190 name.len--; | |
191 name.data++; | |
192 } | |
193 | |
1565 | 194 var = ngx_http_add_variable(cf, &name, NGX_HTTP_VAR_CHANGEABLE); |
501 | 195 if (var == NULL) { |
485 | 196 return NGX_CONF_ERROR; |
197 } | |
198 | |
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199 pool = ngx_create_pool(16384, cf->log); |
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200 if (pool == NULL) { |
485 | 201 return NGX_CONF_ERROR; |
202 } | |
203 | |
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204 ctx.temp_pool = ngx_create_pool(16384, cf->log); |
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205 if (ctx.temp_pool == NULL) { |
485 | 206 return NGX_CONF_ERROR; |
207 } | |
208 | |
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209 ngx_rbtree_init(&ctx.rbtree, &ctx.sentinel, |
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210 ngx_http_variable_value_rbtree_insert); |
485 | 211 |
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212 ctx.high = NULL; |
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213 ctx.tree = NULL; |
589 | 214 ctx.pool = cf->pool; |
485 | 215 |
216 save = *cf; | |
217 cf->pool = pool; | |
589 | 218 cf->ctx = &ctx; |
485 | 219 cf->handler = ngx_http_geo; |
220 cf->handler_conf = conf; | |
221 | |
222 rv = ngx_conf_parse(cf, NULL); | |
223 | |
224 *cf = save; | |
225 | |
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226 if (ctx.high) { |
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227 |
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228 for (i = 0; i < 0x10000; i++) { |
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229 a = (ngx_array_t *) ctx.high->low[i].ranges; |
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230 |
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231 if (a == NULL || a->nelts == 0) { |
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232 continue; |
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233 } |
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234 |
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235 ctx.high->low[i].n = a->nelts; |
485 | 236 |
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237 len = a->nelts * sizeof(ngx_http_geo_range_t); |
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238 |
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239 ctx.high->low[i].ranges = ngx_palloc(cf->pool, len); |
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240 if (ctx.high->low[i].ranges == NULL ){ |
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241 return NGX_CONF_ERROR; |
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242 } |
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243 |
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244 ngx_memcpy(ctx.high->low[i].ranges, a->elts, len); |
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245 } |
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246 |
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247 var->get_handler = ngx_http_geo_range_variable; |
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248 var->data = (uintptr_t) ctx.high; |
485 | 249 |
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250 ngx_destroy_pool(ctx.temp_pool); |
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251 ngx_destroy_pool(pool); |
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252 |
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253 if (ctx.high->default_value == NULL) { |
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254 ctx.high->default_value = &ngx_http_variable_null_value; |
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255 } |
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256 |
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257 } else { |
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258 var->get_handler = ngx_http_geo_cidr_variable; |
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259 var->data = (uintptr_t) ctx.tree; |
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260 |
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261 ngx_destroy_pool(ctx.temp_pool); |
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262 ngx_destroy_pool(pool); |
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263 |
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264 if (ngx_radix32tree_find(ctx.tree, 0) != NGX_RADIX_NO_VALUE) { |
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265 return rv; |
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266 } |
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267 |
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268 if (ngx_radix32tree_insert(ctx.tree, 0, 0, |
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269 (uintptr_t) &ngx_http_variable_null_value) |
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270 == NGX_ERROR) |
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271 { |
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272 return NGX_CONF_ERROR; |
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273 } |
485 | 274 } |
275 | |
276 return rv; | |
277 } | |
278 | |
279 | |
489 | 280 static char * |
281 ngx_http_geo(ngx_conf_t *cf, ngx_command_t *dummy, void *conf) | |
485 | 282 { |
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283 char *rv; |
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284 ngx_str_t *value, file; |
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285 ngx_http_geo_conf_ctx_t *ctx; |
485 | 286 |
589 | 287 ctx = cf->ctx; |
485 | 288 |
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289 value = cf->args->elts; |
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290 |
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291 if (cf->args->nelts == 1) { |
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292 |
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293 if (ngx_strcmp(value[0].data, "ranges") == 0) { |
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294 |
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295 if (ctx->tree) { |
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296 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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297 "the \"ranges\" directive must be " |
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298 "the first directive inside \"geo\" block"); |
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299 goto failed; |
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300 } |
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301 |
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302 ctx->high = ngx_pcalloc(ctx->pool, |
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303 sizeof(ngx_http_geo_high_ranges_t)); |
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304 if (ctx->high == NULL) { |
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305 goto failed; |
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306 } |
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307 |
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308 rv = NGX_CONF_OK; |
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309 |
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310 goto done; |
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311 } |
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312 } |
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313 |
485 | 314 if (cf->args->nelts != 2) { |
315 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
316 "invalid number of the geo parameters"); | |
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317 goto failed; |
485 | 318 } |
319 | |
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320 if (ngx_strcmp(value[0].data, "include") == 0) { |
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321 |
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322 file.len = value[1].len++; |
485 | 323 |
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324 file.data = ngx_pstrdup(ctx->temp_pool, &value[1]); |
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325 if (file.data == NULL) { |
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326 goto failed; |
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327 } |
485 | 328 |
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329 if (ngx_conf_full_name(cf->cycle, &file, 1) != NGX_OK){ |
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330 goto failed; |
485 | 331 } |
332 | |
333 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cf->log, 0, "include %s", file.data); | |
334 | |
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335 rv = ngx_conf_parse(cf, &file); |
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336 |
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337 goto done; |
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338 } |
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339 |
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340 if (ctx->high) { |
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341 rv = ngx_http_geo_range(cf, ctx, value); |
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342 |
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343 } else { |
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344 rv = ngx_http_geo_cidr(cf, ctx, value); |
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345 } |
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346 |
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347 done: |
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348 |
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349 ngx_reset_pool(cf->pool); |
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350 |
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351 return rv; |
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352 |
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353 failed: |
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354 |
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355 ngx_reset_pool(cf->pool); |
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356 |
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357 return NGX_CONF_ERROR; |
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358 } |
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359 |
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360 |
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361 static char * |
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362 ngx_http_geo_range(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx, |
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363 ngx_str_t *value) |
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364 { |
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365 u_char *p, *last; |
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366 in_addr_t start, end; |
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367 ngx_str_t *net; |
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368 ngx_uint_t del; |
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369 ngx_http_variable_value_t *old; |
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370 |
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|
371 if (ngx_strcmp(value[0].data, "default") == 0) { |
22d2b6609853
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|
372 |
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|
373 old = ctx->high->default_value; |
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|
374 |
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|
375 ctx->high->default_value = ngx_http_geo_value(cf, ctx, &value[1]); |
22d2b6609853
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|
376 if (ctx->high->default_value == NULL) { |
22d2b6609853
*) descrease geo configuration memory usage
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|
377 return NGX_CONF_ERROR; |
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|
378 } |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
379 |
22d2b6609853
*) descrease geo configuration memory usage
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|
380 if (old) { |
22d2b6609853
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|
381 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
22d2b6609853
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|
382 "duplicate range \"%V\", value: \"%v\", old value: \"%v\"", |
22d2b6609853
*) descrease geo configuration memory usage
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changeset
|
383 &value[0], ctx->high->default_value, old); |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
384 } |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
385 |
22d2b6609853
*) descrease geo configuration memory usage
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changeset
|
386 return NGX_CONF_OK; |
22d2b6609853
*) descrease geo configuration memory usage
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diff
changeset
|
387 } |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
388 |
22d2b6609853
*) descrease geo configuration memory usage
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changeset
|
389 if (ngx_strcmp(value[0].data, "delete") == 0) { |
22d2b6609853
*) descrease geo configuration memory usage
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changeset
|
390 net = &value[1]; |
22d2b6609853
*) descrease geo configuration memory usage
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|
391 del = 1; |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
392 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
393 } else { |
22d2b6609853
*) descrease geo configuration memory usage
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|
394 net = &value[0]; |
22d2b6609853
*) descrease geo configuration memory usage
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changeset
|
395 del = 0; |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
396 } |
22d2b6609853
*) descrease geo configuration memory usage
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diff
changeset
|
397 |
22d2b6609853
*) descrease geo configuration memory usage
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|
398 last = net->data + net->len; |
22d2b6609853
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changeset
|
399 |
22d2b6609853
*) descrease geo configuration memory usage
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|
400 p = ngx_strlchr(net->data, last, '-'); |
22d2b6609853
*) descrease geo configuration memory usage
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diff
changeset
|
401 |
22d2b6609853
*) descrease geo configuration memory usage
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changeset
|
402 if (p == NULL) { |
22d2b6609853
*) descrease geo configuration memory usage
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diff
changeset
|
403 goto invalid; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
404 } |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
405 |
22d2b6609853
*) descrease geo configuration memory usage
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changeset
|
406 start = ngx_inet_addr(net->data, p - net->data); |
22d2b6609853
*) descrease geo configuration memory usage
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diff
changeset
|
407 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
408 if (start == INADDR_NONE) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
409 goto invalid; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
410 } |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
411 |
22d2b6609853
*) descrease geo configuration memory usage
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diff
changeset
|
412 start = ntohl(start); |
22d2b6609853
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diff
changeset
|
413 |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
414 p++; |
22d2b6609853
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parents:
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diff
changeset
|
415 |
22d2b6609853
*) descrease geo configuration memory usage
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changeset
|
416 end = ngx_inet_addr(p, last - p); |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
417 |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
418 if (end == INADDR_NONE) { |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
419 goto invalid; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
420 } |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
421 |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
422 end = ntohl(end); |
22d2b6609853
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parents:
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diff
changeset
|
423 |
22d2b6609853
*) descrease geo configuration memory usage
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changeset
|
424 if (start > end) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
425 goto invalid; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
426 } |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
427 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
428 if (del) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
429 if (ngx_http_geo_delete_range(cf, ctx, start, end)) { |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
430 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
431 "no address range \"%V\" to delete", net); |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
432 } |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
433 |
22d2b6609853
*) descrease geo configuration memory usage
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parents:
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diff
changeset
|
434 return NGX_CONF_OK; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
435 } |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
436 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
437 ctx->value = ngx_http_geo_value(cf, ctx, &value[1]); |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
438 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
439 if (ctx->value == NULL) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
440 return NGX_CONF_ERROR; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
441 } |
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:
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diff
changeset
|
443 ctx->net = net; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
444 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
445 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
|
446 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
447 invalid: |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
448 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
449 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
|
450 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
451 return NGX_CONF_ERROR; |
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 |
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 /* 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
|
456 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
457 static char * |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
458 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
|
459 in_addr_t start, in_addr_t end) |
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 in_addr_t n; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
462 ngx_uint_t h, i, s, e; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
463 ngx_array_t *a; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
464 ngx_http_geo_range_t *range; |
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:
2334
diff
changeset
|
466 for (n = start; n < end; n += 0x10000) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
467 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
468 h = n >> 16; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
469 s = n & 0xffff; |
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 if ((n | 0xffff) > end) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
472 e = end & 0xffff; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
473 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
474 } else { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
475 e = 0xffff; |
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 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
478 a = (ngx_array_t *) ctx->high->low[h].ranges; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
479 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
480 if (a == NULL) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
481 a = ngx_array_create(ctx->temp_pool, 64, |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
482 sizeof(ngx_http_geo_range_t)); |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
483 if (a == NULL) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
484 return NGX_CONF_ERROR; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
485 } |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
486 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
487 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
|
488 } |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
489 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
490 i = a->nelts; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
491 range = a->elts; |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
492 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
493 while (i) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
494 |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
495 i--; |
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 if (e < (ngx_uint_t) range[i].start) { |
22d2b6609853
*) descrease geo configuration memory usage
Igor Sysoev <igor@sysoev.ru>
parents:
2334
diff
changeset
|
498 continue; |
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499 } |
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|
500 |
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501 if (s > (ngx_uint_t) range[i].end) { |
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|
502 |
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503 /* add after the range */ |
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504 |
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505 range = ngx_array_push(a); |
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506 if (range == NULL) { |
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507 return NGX_CONF_ERROR; |
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|
508 } |
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|
509 |
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|
510 range = a->elts; |
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|
511 |
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512 ngx_memcpy(&range[i + 2], &range[i + 1], |
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513 (a->nelts - 2 - i) * sizeof(ngx_http_geo_range_t)); |
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514 |
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515 range = &range[i + 1]; |
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|
516 |
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|
517 goto next; |
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|
518 } |
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519 |
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520 if (s == (ngx_uint_t) range[i].start |
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521 && e == (ngx_uint_t) range[i].end) |
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522 { |
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523 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
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524 "duplicate range \"%V\", value: \"%v\", old value: \"%v\"", |
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525 ctx->net, ctx->value, range[i].value); |
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|
526 continue; |
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|
527 } |
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diff
changeset
|
528 |
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529 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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530 "overlapped range \"%V\"", ctx->net); |
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|
531 |
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532 return NGX_CONF_ERROR; |
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|
533 } |
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|
534 |
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|
535 /* add the first range */ |
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|
536 |
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537 range = ngx_array_push(a); |
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538 if (range == NULL) { |
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539 return NGX_CONF_ERROR; |
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|
540 } |
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|
541 |
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|
542 next: |
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|
543 |
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|
544 range->start = (u_short) s; |
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545 range->end = (u_short) e; |
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546 range->value = ctx->value; |
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547 } |
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|
548 |
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549 return NGX_CONF_OK; |
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|
550 } |
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|
551 |
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|
552 |
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553 static ngx_uint_t |
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554 ngx_http_geo_delete_range(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx, |
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555 in_addr_t start, in_addr_t end) |
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|
556 { |
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557 in_addr_t n; |
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558 ngx_uint_t h, i, s, e, warn; |
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559 ngx_array_t *a; |
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|
560 ngx_http_geo_range_t *range; |
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diff
changeset
|
561 |
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diff
changeset
|
562 warn = 0; |
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diff
changeset
|
563 |
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diff
changeset
|
564 for (n = start; n < end; n += 0x10000) { |
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diff
changeset
|
565 |
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diff
changeset
|
566 h = n >> 16; |
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diff
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|
567 s = n & 0xffff; |
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diff
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|
568 |
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|
569 if ((n | 0xffff) > end) { |
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570 e = end & 0xffff; |
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|
571 |
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|
572 } else { |
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*) descrease geo configuration memory usage
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|
573 e = 0xffff; |
22d2b6609853
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|
574 } |
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|
575 |
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576 a = (ngx_array_t *) ctx->high->low[h].ranges; |
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changeset
|
577 |
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|
578 if (a == NULL) { |
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diff
changeset
|
579 warn = 1; |
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diff
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|
580 continue; |
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parents:
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diff
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|
581 } |
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parents:
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diff
changeset
|
582 |
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diff
changeset
|
583 range = a->elts; |
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diff
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|
584 for (i = 0; i < a->nelts; i++) { |
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|
585 |
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|
586 if (s == (ngx_uint_t) range[i].start |
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587 && e == (ngx_uint_t) range[i].end) |
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diff
changeset
|
588 { |
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diff
changeset
|
589 ngx_memcpy(&range[i], &range[i + 1], |
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diff
changeset
|
590 (a->nelts - 1 - i) * sizeof(ngx_http_geo_range_t)); |
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|
591 break; |
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|
592 } |
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changeset
|
593 |
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|
594 if (s != (ngx_uint_t) range[i].start |
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changeset
|
595 && e != (ngx_uint_t) range[i].end) |
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parents:
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diff
changeset
|
596 { |
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parents:
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diff
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|
597 continue; |
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parents:
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diff
changeset
|
598 } |
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parents:
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diff
changeset
|
599 |
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parents:
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diff
changeset
|
600 warn = 1; |
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parents:
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diff
changeset
|
601 } |
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parents:
2334
diff
changeset
|
602 } |
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parents:
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diff
changeset
|
603 |
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parents:
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diff
changeset
|
604 return warn; |
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parents:
2334
diff
changeset
|
605 } |
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parents:
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diff
changeset
|
606 |
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parents:
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diff
changeset
|
607 |
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parents:
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diff
changeset
|
608 static char * |
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parents:
2334
diff
changeset
|
609 ngx_http_geo_cidr(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx, |
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|
610 ngx_str_t *value) |
22d2b6609853
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|
611 { |
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|
612 ngx_int_t rc, del; |
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diff
changeset
|
613 ngx_str_t *net; |
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diff
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|
614 ngx_uint_t i; |
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changeset
|
615 ngx_inet_cidr_t cidrin; |
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|
616 ngx_http_variable_value_t *val, *old; |
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|
617 |
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diff
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|
618 if (ctx->tree == NULL) { |
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|
619 ctx->tree = ngx_radix_tree_create(ctx->pool, -1); |
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|
620 if (ctx->tree == NULL) { |
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|
621 return NGX_CONF_ERROR; |
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|
622 } |
485 | 623 } |
624 | |
625 if (ngx_strcmp(value[0].data, "default") == 0) { | |
626 cidrin.addr = 0; | |
627 cidrin.mask = 0; | |
2340
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|
628 net = &value[0]; |
485 | 629 |
630 } else { | |
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631 if (ngx_strcmp(value[0].data, "delete") == 0) { |
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632 net = &value[1]; |
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633 del = 1; |
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634 |
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635 } else { |
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636 net = &value[0]; |
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637 del = 0; |
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638 } |
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639 |
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640 rc = ngx_ptocidr(net, &cidrin); |
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641 |
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642 if (rc == NGX_ERROR) { |
485 | 643 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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644 "invalid network \"%V\"", net); |
485 | 645 return NGX_CONF_ERROR; |
646 } | |
647 | |
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648 if (rc == NGX_DONE) { |
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649 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
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650 "low address bits of %V are meaningless", net); |
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651 } |
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652 |
485 | 653 cidrin.addr = ntohl(cidrin.addr); |
654 cidrin.mask = ntohl(cidrin.mask); | |
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655 |
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656 if (del) { |
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657 if (ngx_radix32tree_delete(ctx->tree, cidrin.addr, cidrin.mask) |
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658 != NGX_OK) |
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659 { |
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660 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
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661 "no network \"%V\" to delete", net); |
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662 return NGX_CONF_OK; |
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663 } |
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664 } |
485 | 665 } |
666 | |
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667 val = ngx_http_geo_value(cf, ctx, &value[1]); |
485 | 668 |
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669 if (val == NULL) { |
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670 return NGX_CONF_ERROR; |
485 | 671 } |
672 | |
553 | 673 for (i = 2; i; i--) { |
589 | 674 rc = ngx_radix32tree_insert(ctx->tree, cidrin.addr, cidrin.mask, |
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675 (uintptr_t) val); |
553 | 676 if (rc == NGX_OK) { |
677 return NGX_CONF_OK; | |
678 } | |
679 | |
680 if (rc == NGX_ERROR) { | |
681 return NGX_CONF_ERROR; | |
682 } | |
683 | |
684 /* rc == NGX_BUSY */ | |
685 | |
686 old = (ngx_http_variable_value_t *) | |
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687 ngx_radix32tree_find(ctx->tree, cidrin.addr & cidrin.mask); |
553 | 688 |
689 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, | |
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690 "duplicate network \"%V\", value: \"%v\", old value: \"%v\"", |
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691 net, val, old); |
553 | 692 |
589 | 693 rc = ngx_radix32tree_delete(ctx->tree, cidrin.addr, cidrin.mask); |
553 | 694 |
695 if (rc == NGX_ERROR) { | |
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696 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid radix tree"); |
553 | 697 return NGX_CONF_ERROR; |
698 } | |
485 | 699 } |
700 | |
553 | 701 return NGX_CONF_ERROR; |
485 | 702 } |
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703 |
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704 |
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705 static ngx_http_variable_value_t * |
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706 ngx_http_geo_value(ngx_conf_t *cf, ngx_http_geo_conf_ctx_t *ctx, |
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707 ngx_str_t *value) |
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708 { |
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709 uint32_t hash; |
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710 ngx_http_variable_value_t *val; |
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711 ngx_http_variable_value_node_t *vvn; |
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712 |
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713 hash = ngx_crc32_long(value->data, value->len); |
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714 |
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715 val = ngx_http_variable_value_lookup(&ctx->rbtree, value, hash); |
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716 |
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717 if (val) { |
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718 return val; |
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719 } |
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720 |
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721 val = ngx_palloc(ctx->pool, sizeof(ngx_http_variable_value_t)); |
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722 if (val == NULL) { |
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723 return NULL; |
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724 } |
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725 |
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726 val->len = value->len; |
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727 val->data = ngx_pstrdup(ctx->pool, value); |
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728 if (val->data == NULL) { |
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729 return NULL; |
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730 } |
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731 |
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732 val->valid = 1; |
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733 val->no_cacheable = 0; |
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734 val->not_found = 0; |
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735 |
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736 vvn = ngx_palloc(ctx->temp_pool, sizeof(ngx_http_variable_value_node_t)); |
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737 if (vvn == NULL) { |
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738 return NULL; |
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739 } |
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740 |
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741 vvn->node.key = hash; |
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742 vvn->len = val->len; |
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743 vvn->value = val; |
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744 |
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745 ngx_rbtree_insert(&ctx->rbtree, &vvn->node); |
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746 |
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747 return val; |
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748 } |