16 * $mod_geoip.c (v2.0) (13.09.2006 00:29:11)
22 * GeoIP module (plugin) for lighttpd.
23 * the module loads a geoip database of type "country" or "city" and
24 * sets new ENV vars based on ip record lookups.
36 * GEOIP_CITY_POSTAL_CODE
38 * GEOIP_CITY_LONG_LATITUDE
40 * GEOIP_CITY_AREA_CODE
42 * Usage (configuration options):
43 * geoip.db-filename = <path to the geoip or geocity database>
44 * geoip.memory-cache = <enable|disable> : default disabled
45 * if enabled, mod_geoip will load the database binary file to
46 * memory for very fast lookups. the only penalty is memory usage.
49 * Ami E. Bizamcher (amix)
53 * GeoIP Library and API must be installed!
57 /* plugin config for all request/connections */
60 unsigned short mem_cache
;
68 plugin_config
**config_storage
;
73 /* init the plugin data */
74 INIT_FUNC(mod_geoip_init
) {
77 p
= calloc(1, sizeof(*p
));
82 /* destroy the plugin data */
83 FREE_FUNC(mod_geoip_free
) {
88 if (!p
) return HANDLER_GO_ON
;
90 if (p
->config_storage
) {
93 for (i
= 0; i
< srv
->config_context
->used
; i
++) {
94 plugin_config
*s
= p
->config_storage
[i
];
98 buffer_free(s
->db_name
);
101 if (s
->gi
) GeoIP_delete(s
->gi
);
105 free(p
->config_storage
);
110 return HANDLER_GO_ON
;
113 /* handle plugin config and check values */
115 SETDEFAULTS_FUNC(mod_geoip_set_defaults
) {
116 plugin_data
*p
= p_d
;
119 config_values_t cv
[] = {
120 { "geoip.db-filename", NULL
, T_CONFIG_STRING
, T_CONFIG_SCOPE_CONNECTION
}, /* 0 */
121 { "geoip.memory-cache", NULL
, T_CONFIG_BOOLEAN
, T_CONFIG_SCOPE_CONNECTION
}, /* 1 */
122 { NULL
, NULL
, T_CONFIG_UNSET
, T_CONFIG_SCOPE_UNSET
}
125 if (!p
) return HANDLER_ERROR
;
127 p
->config_storage
= calloc(1, srv
->config_context
->used
* sizeof(plugin_config
*));
129 for (i
= 0; i
< srv
->config_context
->used
; i
++) {
130 data_config
const* config
= (data_config
const*)srv
->config_context
->data
[i
];
134 s
= calloc(1, sizeof(plugin_config
));
136 s
->db_name
= buffer_init();
137 s
->mem_cache
= 0; /* default: do not load db to cache */
140 cv
[0].destination
= s
->db_name
;
141 cv
[1].destination
= &(s
->mem_cache
);
143 p
->config_storage
[i
] = s
;
145 if (0 != config_insert_values_global(srv
, config
->value
, cv
, i
== 0 ? T_CONFIG_SCOPE_SERVER
: T_CONFIG_SCOPE_CONNECTION
)) {
146 return HANDLER_ERROR
;
149 mode
= GEOIP_STANDARD
| GEOIP_CHECK_CACHE
;
151 /* country db filename is requeried! */
152 if (!buffer_is_empty(s
->db_name
)) {
154 /* let's start cooking */
155 if (s
->mem_cache
!= 0)
156 mode
= GEOIP_MEMORY_CACHE
| GEOIP_CHECK_CACHE
;
158 if (NULL
== (s
->gi
= GeoIP_open(s
->db_name
->ptr
, mode
))) {
159 log_error_write(srv
, __FILE__
, __LINE__
, "s",
160 "failed to open GeoIP database!!!");
162 return HANDLER_ERROR
;
165 /* is the db supported ? */
166 if (s
->gi
->databaseType
!= GEOIP_COUNTRY_EDITION
&&
167 s
->gi
->databaseType
!= GEOIP_CITY_EDITION_REV0
&&
168 s
->gi
->databaseType
!= GEOIP_CITY_EDITION_REV1
) {
169 log_error_write(srv
, __FILE__
, __LINE__
, "s",
170 "GeoIP database is of unsupported type!!!");
175 return HANDLER_GO_ON
;
180 static int mod_geoip_patch_connection(server
*srv
, connection
*con
, plugin_data
*p
) {
182 plugin_config
*s
= p
->config_storage
[0];
188 /* skip the first, the global context */
189 for (i
= 1; i
< srv
->config_context
->used
; i
++) {
190 data_config
*dc
= (data_config
*)srv
->config_context
->data
[i
];
191 s
= p
->config_storage
[i
];
193 /* condition didn't match */
194 if (!config_check_cond(srv
, con
, dc
)) continue;
197 for (j
= 0; j
< dc
->value
->used
; j
++) {
198 data_unset
*du
= dc
->value
->data
[j
];
200 if (buffer_is_equal_string(du
->key
, CONST_STR_LEN("geoip.db-filename"))) {
204 if (buffer_is_equal_string(du
->key
, CONST_STR_LEN("geoip.memory-cache"))) {
214 static handler_t
mod_geoip_query (connection
*con
, plugin_data
*p
) {
215 const char *remote_ip
;
218 const char *returnedCountry
;
220 remote_ip
= con
->dst_addr_buf
->ptr
;
222 if (p
->conf
.gi
->databaseType
== GEOIP_COUNTRY_EDITION
) {
223 /* get the country code 2 chars */
224 if (NULL
== (ds
= (data_string
*)array_get_element(con
->environment
, "GEOIP_COUNTRY_CODE"))) {
225 if (NULL
!= (returnedCountry
= GeoIP_country_code_by_addr(p
->conf
.gi
, remote_ip
))) {
226 if (NULL
== (ds
= (data_string
*)array_get_unused_element(con
->environment
, TYPE_STRING
))) {
227 ds
= data_string_init();
230 buffer_copy_string(ds
->key
, "GEOIP_COUNTRY_CODE");
231 buffer_copy_string(ds
->value
, returnedCountry
);
232 array_insert_unique(con
->environment
, (data_unset
*)ds
);
236 /* get the country code 3 chars */
237 if (NULL
== (ds
= (data_string
*)array_get_element(con
->environment
, "GEOIP_COUNTRY_CODE3"))) {
238 if (NULL
!= (returnedCountry
= GeoIP_country_code3_by_addr(p
->conf
.gi
, remote_ip
))) {
239 if (NULL
== (ds
= (data_string
*)array_get_unused_element(con
->environment
, TYPE_STRING
))) {
240 ds
= data_string_init();
243 buffer_copy_string(ds
->key
, "GEOIP_COUNTRY_CODE3");
244 buffer_copy_string(ds
->value
, returnedCountry
);
245 array_insert_unique(con
->environment
, (data_unset
*)ds
);
249 /* get the country name */
250 if (NULL
== (ds
= (data_string
*)array_get_element(con
->environment
, "GEOIP_COUNTRY_NAME"))) {
251 if (NULL
!= (returnedCountry
= GeoIP_country_name_by_addr(p
->conf
.gi
, remote_ip
))) {
252 if (NULL
== (ds
= (data_string
*)array_get_unused_element(con
->environment
, TYPE_STRING
))) {
253 ds
= data_string_init();
256 buffer_copy_string(ds
->key
, "GEOIP_COUNTRY_NAME");
257 buffer_copy_string(ds
->value
, returnedCountry
);
258 array_insert_unique(con
->environment
, (data_unset
*)ds
);
263 return HANDLER_GO_ON
;
266 /* if we are here, geo city is in use */
268 if (NULL
!= (gir
= GeoIP_record_by_addr(p
->conf
.gi
, remote_ip
))) {
269 /* get the country code 2 chars */
270 if (NULL
== (ds
= (data_string
*)array_get_element(con
->environment
, "GEOIP_COUNTRY_CODE"))) {
271 if (NULL
== (ds
= (data_string
*)array_get_unused_element(con
->environment
, TYPE_STRING
))) {
272 ds
= data_string_init();
275 buffer_copy_string(ds
->key
, "GEOIP_COUNTRY_CODE");
276 buffer_copy_string(ds
->value
, gir
->country_code
);
277 array_insert_unique(con
->environment
, (data_unset
*)ds
);
280 /* get the country code 3 chars */
281 if (NULL
== (ds
= (data_string
*)array_get_element(con
->environment
, "GEOIP_COUNTRY_CODE3"))) {
282 if (NULL
== (ds
= (data_string
*)array_get_unused_element(con
->environment
, TYPE_STRING
))) {
283 ds
= data_string_init();
286 buffer_copy_string(ds
->key
, "GEOIP_COUNTRY_CODE3");
287 buffer_copy_string(ds
->value
, gir
->country_code3
);
288 array_insert_unique(con
->environment
, (data_unset
*)ds
);
291 /* get the country name */
292 if (NULL
== (ds
= (data_string
*)array_get_element(con
->environment
, "GEOIP_COUNTRY_NAME"))) {
293 if (NULL
== (ds
= (data_string
*)array_get_unused_element(con
->environment
, TYPE_STRING
))) {
294 ds
= data_string_init();
297 buffer_copy_string(ds
->key
, "GEOIP_COUNTRY_NAME");
298 buffer_copy_string(ds
->value
, gir
->country_name
);
299 array_insert_unique(con
->environment
, (data_unset
*)ds
);
302 /* get the city region */
303 if (NULL
== (ds
= (data_string
*)array_get_element(con
->environment
, "GEOIP_CITY_REGION"))) {
304 if (NULL
== (ds
= (data_string
*)array_get_unused_element(con
->environment
, TYPE_STRING
))) {
305 ds
= data_string_init();
308 buffer_copy_string(ds
->key
, "GEOIP_CITY_REGION");
309 buffer_copy_string(ds
->value
, gir
->region
);
310 array_insert_unique(con
->environment
, (data_unset
*)ds
);
314 if (NULL
== (ds
= (data_string
*)array_get_element(con
->environment
, "GEOIP_CITY_NAME"))) {
315 if (NULL
== (ds
= (data_string
*)array_get_unused_element(con
->environment
, TYPE_STRING
))) {
316 ds
= data_string_init();
319 buffer_copy_string(ds
->key
, "GEOIP_CITY_NAME");
320 buffer_copy_string(ds
->value
, gir
->city
);
321 array_insert_unique(con
->environment
, (data_unset
*)ds
);
324 /* get the postal code */
325 if (NULL
== (ds
= (data_string
*)array_get_element(con
->environment
, "GEOIP_CITY_POSTAL_CODE"))) {
326 if (NULL
== (ds
= (data_string
*)array_get_unused_element(con
->environment
, TYPE_STRING
))) {
327 ds
= data_string_init();
330 buffer_copy_string(ds
->key
, "GEOIP_CITY_POSTAL_CODE");
331 buffer_copy_string(ds
->value
, gir
->postal_code
);
332 array_insert_unique(con
->environment
, (data_unset
*)ds
);
335 /* get the latitude */
336 if (NULL
== (ds
= (data_string
*)array_get_element(con
->environment
, "GEOIP_CITY_LATITUDE"))) {
338 if (NULL
== (ds
= (data_string
*)array_get_unused_element(con
->environment
, TYPE_STRING
))) {
339 ds
= data_string_init();
342 snprintf(latitude
, sizeof(latitude
), "%f", gir
->latitude
);
343 buffer_copy_string(ds
->key
, "GEOIP_CITY_LATITUDE");
344 buffer_copy_string(ds
->value
, latitude
);
345 array_insert_unique(con
->environment
, (data_unset
*)ds
);
348 /* get the long latitude */
349 if (NULL
== (ds
= (data_string
*)array_get_element(con
->environment
, "GEOIP_CITY_LONG_LATITUDE"))) {
350 char long_latitude
[32];
351 if (NULL
== (ds
= (data_string
*)array_get_unused_element(con
->environment
, TYPE_STRING
))) {
352 ds
= data_string_init();
355 snprintf(long_latitude
, sizeof(long_latitude
), "%f", gir
->longitude
);
356 buffer_copy_string(ds
->key
, "GEOIP_CITY_LONG_LATITUDE");
357 buffer_copy_string(ds
->value
, long_latitude
);
358 array_insert_unique(con
->environment
, (data_unset
*)ds
);
361 /* get the dma code */
362 if (NULL
== (ds
= (data_string
*)array_get_element(con
->environment
, "GEOIP_CITY_DMA_CODE"))) {
364 if (NULL
== (ds
= (data_string
*)array_get_unused_element(con
->environment
, TYPE_STRING
))) {
365 ds
= data_string_init();
368 snprintf(dc
, sizeof(dc
), "%i", gir
->dma_code
);
369 buffer_copy_string(ds
->key
, "GEOIP_CITY_DMA_CODE");
370 buffer_copy_string(ds
->value
, dc
);
371 array_insert_unique(con
->environment
, (data_unset
*)ds
);
374 /* get the area code */
375 if (NULL
== (ds
= (data_string
*)array_get_element(con
->environment
, "GEOIP_CITY_AREA_CODE"))) {
377 if (NULL
== (ds
= (data_string
*)array_get_unused_element(con
->environment
, TYPE_STRING
))) {
378 ds
= data_string_init();
381 snprintf(ac
, sizeof(ac
), "%i", gir
->area_code
);
382 buffer_copy_string(ds
->key
, "GEOIP_CITY_AREA_CODE");
383 buffer_copy_string(ds
->value
, ac
);
384 array_insert_unique(con
->environment
, (data_unset
*)ds
);
387 GeoIPRecord_delete(gir
);
390 return HANDLER_GO_ON
;
393 CONNECTION_FUNC(mod_geoip_handle_request_env
) {
394 plugin_data
*p
= p_d
;
395 mod_geoip_patch_connection(srv
, con
, p
);
396 if (buffer_is_empty(p
->conf
.db_name
)) return HANDLER_GO_ON
;
398 return mod_geoip_query(con
, p
);
401 /* this function is called at dlopen() time and inits the callbacks */
403 int mod_geoip_plugin_init(plugin
*p
);
404 int mod_geoip_plugin_init(plugin
*p
) {
405 p
->version
= LIGHTTPD_VERSION_ID
;
406 p
->name
= buffer_init_string("geoip");
408 p
->init
= mod_geoip_init
;
409 p
->handle_request_env
= mod_geoip_handle_request_env
;
410 p
->set_defaults
= mod_geoip_set_defaults
;
411 p
->cleanup
= mod_geoip_free
;