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View File lighttpd-1.4.13_geoip.patch of Package lighttpd (Project server:http)

Index: src/Makefile.am
===================================================================
--- src/Makefile.am.orig
+++ src/Makefile.am
@@ -234,6 +234,10 @@ mod_accesslog_la_SOURCES = mod_accesslog
 mod_accesslog_la_LDFLAGS = -module -export-dynamic -avoid-version -no-undefined
 mod_accesslog_la_LIBADD = $(common_libadd)
 
+lib_LTLIBRARIES += mod_geoip.la
+mod_geoip_la_SOURCES = mod_geoip.c
+mod_geoip_la_LDFLAGS = -module -export-dynamic -avoid-version -no-undefined
+mod_geoip_la_LIBADD = $(common_libadd) -lGeoIP
 
 hdr = server.h buffer.h network.h log.h keyvalue.h \
       response.h request.h fastcgi.h chunk.h \
Index: src/mod_geoip.c
===================================================================
--- /dev/null
+++ src/mod_geoip.c
@@ -0,0 +1,417 @@
+#include <GeoIP.h>
+#include <GeoIPCity.h>
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "base.h"
+#include "log.h"
+#include "buffer.h"
+
+#include "plugin.h"
+#include "inet_ntop_cache.h"
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+/**
+ *
+ * $mod_geoip.c (v2.0) (13.09.2006 00:29:11)
+ *
+ * Name:
+ * 	mod_geoip.c
+ *
+ * Description:
+ * 	GeoIP module (plugin) for lighttpd.
+ *	the module loads a geoip database of type "country" or "city" and
+ *	sets new ENV vars based on ip record lookups.
+ *
+ *	country db env's:
+ *		GEOIP_COUNTRY_CODE
+ *		GEOIP_COUNTRY_CODE3
+ *		GEOIP_COUNTRY_NAME
+ *
+ *	city db env's:
+ *		GEOIP_COUNTRY_CODE
+ *		GEOIP_COUNTRY_CODE3
+ *		GEOIP_COUNTRY_NAME
+ *		GEOIP_CITY_NAME
+ *		GEOIP_CITY_POSTAL_CODE
+ *		GEOIP_CITY_LATITUDE
+ *		GEOIP_CITY_LONG_LATITUDE
+ *		GEOIP_CITY_DMA_CODE
+ *		GEOIP_CITY_AREA_CODE
+ *
+ * Usage (configuration options):
+ *	geoip.db-filename = <path to the geoip or geocity database>
+ *	geoip.memory-cache = <enable|disable> : default disabled
+ *		if enabled, mod_geoip will load the database binary file to
+ *		memory for very fast lookups. the only penalty is memory usage.
+ *
+ * Author:
+ * 	Ami E. Bizamcher (amix)
+ *	duke.amix@gmail.com
+ *
+ * Note:
+ * 	GeoIP Library and API must be installed!
+ */
+
+
+/* plugin config for all request/connections */
+
+typedef struct {
+	unsigned short mem_cache;
+	buffer	*db_name;
+	GeoIP   *gi;
+} plugin_config;
+
+typedef struct {
+	PLUGIN_DATA;
+
+	plugin_config **config_storage;
+
+	plugin_config conf;
+} plugin_data;
+
+/* init the plugin data */
+INIT_FUNC(mod_geoip_init) {
+	plugin_data *p;
+
+	p = calloc(1, sizeof(*p));
+
+	return p;
+}
+
+/* detroy the plugin data */
+FREE_FUNC(mod_geoip_free) {
+	plugin_data *p = p_d;
+
+	UNUSED(srv);
+
+	if (!p) return HANDLER_GO_ON;
+
+	if (p->config_storage) {
+		size_t i;
+
+		for (i = 0; i < srv->config_context->used; i++) {
+			plugin_config *s = p->config_storage[i];
+
+			if (!s) continue;
+
+			buffer_free(s->db_name);
+
+			/* clean up */
+			GeoIP_delete(s->gi);
+
+			free(s);
+		}
+		free(p->config_storage);
+	}
+
+	free(p);
+
+	return HANDLER_GO_ON;
+}
+
+/* handle plugin config and check values */
+
+SETDEFAULTS_FUNC(mod_geoip_set_defaults) {
+	plugin_data *p = p_d;
+	size_t i = 0;
+
+	config_values_t cv[] = {
+		{ "geoip.db-filename",	NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION },	/* 0 */
+		{ "geoip.memory-cache",	NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION },    /* 1 */
+		{ NULL,			NULL, T_CONFIG_UNSET, T_CONFIG_SCOPE_UNSET }
+	};
+
+	if (!p) return HANDLER_ERROR;
+
+	p->config_storage = calloc(1, srv->config_context->used * sizeof(specific_config *));
+
+	for (i = 0; i < srv->config_context->used; i++) {
+		plugin_config *s;
+		int mode;
+
+		s = calloc(1, sizeof(plugin_config));
+
+		s->db_name = buffer_init();
+		s->mem_cache = 0; /* default: do not load db to cache */
+		s->gi = NULL;
+
+		cv[0].destination = s->db_name;
+		cv[1].destination = &(s->mem_cache);
+
+		p->config_storage[i] = s;
+
+		if (0 != config_insert_values_global(srv, ((data_config *)srv->config_context->data[i])->value, cv)) {
+			return HANDLER_ERROR;
+		}
+
+		mode = GEOIP_STANDARD | GEOIP_CHECK_CACHE;
+
+		/* country db filename is requeried! */
+		if (!buffer_is_empty(s->db_name)) {
+
+			/* let's start cooking */
+			if (s->mem_cache != 0)
+				mode = GEOIP_MEMORY_CACHE | GEOIP_CHECK_CACHE;
+
+			if (NULL == (s->gi = GeoIP_open(s->db_name->ptr, mode))) {
+				log_error_write(srv, __FILE__, __LINE__, "s",
+					"failed to open GeoIP database!!!");
+
+				return HANDLER_ERROR;
+			}
+
+			/* is the db supported ? */
+			if (s->gi->databaseType != GEOIP_COUNTRY_EDITION &&
+				s->gi->databaseType != GEOIP_CITY_EDITION_REV0 &&
+				s->gi->databaseType != GEOIP_CITY_EDITION_REV1) {
+				log_error_write(srv, __FILE__, __LINE__, "s",
+					"GeoIP database is of unsupported type!!!");
+			}
+		}
+	}
+
+	return HANDLER_GO_ON;
+}
+
+#define PATCH(x) \
+	p->conf.x = s->x;
+static int mod_geoip_patch_connection(server *srv, connection *con, plugin_data *p) {
+	size_t i, j;
+	plugin_config *s = p->config_storage[0];
+
+	PATCH(db_name);
+	PATCH(mem_cache);
+        PATCH(gi);
+
+	/* skip the first, the global context */
+	for (i = 1; i < srv->config_context->used; i++) {
+		data_config *dc = (data_config *)srv->config_context->data[i];
+		s = p->config_storage[i];
+
+		/* condition didn't match */
+		if (!config_check_cond(srv, con, dc)) continue;
+
+		/* merge config */
+		for (j = 0; j < dc->value->used; j++) {
+			data_unset *du = dc->value->data[j];
+
+			if (buffer_is_equal_string(du->key, CONST_STR_LEN("geoip.db-filename"))) {
+				PATCH(db_name);
+			}
+
+			if (buffer_is_equal_string(du->key, CONST_STR_LEN("geoip.memory-cache"))) {
+                                PATCH(mem_cache);
+                        }
+		}
+	}
+
+	return 0;
+}
+#undef PATCH
+
+URIHANDLER_FUNC(mod_geoip_subrequest) {
+        plugin_data *p = p_d;
+
+        mod_geoip_patch_connection(srv, con, p);
+
+        if (!buffer_is_empty(p->conf.db_name)) {
+		const char *remote_ip;
+		GeoIP *gi;
+		data_string *ds;
+		const char *returnedCountry;
+
+		remote_ip = inet_ntop_cache_get_ip(srv, &(con->dst_addr));
+
+		if (p->conf.gi->databaseType == GEOIP_COUNTRY_EDITION) {
+			/* get the country code 2 chars */
+			if (NULL == (ds = (data_string *)array_get_element(con->environment, "GEOIP_COUNTRY_CODE"))) {
+				if (NULL != (returnedCountry = GeoIP_country_code_by_addr(p->conf.gi, remote_ip))) {
+	        	        	if (NULL == (ds = (data_string *)array_get_unused_element(con->environment, TYPE_STRING))) {
+        	        	        	ds = data_string_init();
+	        	        	}
+
+					buffer_copy_string(ds->key, "GEOIP_COUNTRY_CODE");
+					buffer_copy_string(ds->value, returnedCountry);
+					array_insert_unique(con->environment, (data_unset *)ds);
+				}
+			}
+
+			/* get the country code 3 chars */
+			if (NULL == (ds = (data_string *)array_get_element(con->environment, "GEOIP_COUNTRY_CODE3"))) {
+				if (NULL != (returnedCountry = GeoIP_country_code3_by_addr(p->conf.gi, remote_ip))) {
+					if (NULL == (ds = (data_string *)array_get_unused_element(con->environment, TYPE_STRING))) {
+						ds = data_string_init();
+					}
+
+					buffer_copy_string(ds->key, "GEOIP_COUNTRY_CODE3");
+					buffer_copy_string(ds->value, returnedCountry);
+					array_insert_unique(con->environment, (data_unset *)ds);
+				}
+			}
+
+			/* get the country name */
+			if (NULL == (ds = (data_string *)array_get_element(con->environment, "GEOIP_COUNTRY_NAME"))) {
+				if (NULL != (returnedCountry = GeoIP_country_name_by_addr(p->conf.gi, remote_ip))) {
+					if (NULL == (ds = (data_string *)array_get_unused_element(con->environment, TYPE_STRING))) {
+						ds = data_string_init();
+					}
+
+					buffer_copy_string(ds->key, "GEOIP_COUNTRY_NAME");
+					buffer_copy_string(ds->value, returnedCountry);
+					array_insert_unique(con->environment, (data_unset *)ds);
+				}
+			}
+
+			/* go on... */
+			return HANDLER_GO_ON;
+		}
+
+		/* if we are here, geo city is in use */
+		GeoIPRecord * gir;
+
+		if (NULL != (gir = GeoIP_record_by_addr(p->conf.gi, remote_ip))) {
+			/* get the country code 2 chars */
+                        if (NULL == (ds = (data_string *)array_get_element(con->environment, "GEOIP_COUNTRY_CODE"))) {
+                                if (NULL == (ds = (data_string *)array_get_unused_element(con->environment, TYPE_STRING))) {
+                                        ds = data_string_init();
+                                }
+
+                                buffer_copy_string(ds->key, "GEOIP_COUNTRY_CODE");
+                                buffer_copy_string(ds->value, gir->country_code);
+                                array_insert_unique(con->environment, (data_unset *)ds);
+                        }
+
+			/* get the country code 3 chars */
+			if (NULL == (ds = (data_string *)array_get_element(con->environment, "GEOIP_COUNTRY_CODE3"))) {
+				if (NULL == (ds = (data_string *)array_get_unused_element(con->environment, TYPE_STRING))) {
+					ds = data_string_init();
+				}
+
+				buffer_copy_string(ds->key, "GEOIP_COUNTRY_CODE3");
+				buffer_copy_string(ds->value, gir->country_code3);
+				array_insert_unique(con->environment, (data_unset *)ds);
+			}
+
+			/* get the country name */
+			if (NULL == (ds = (data_string *)array_get_element(con->environment, "GEOIP_COUNTRY_NAME"))) {
+				if (NULL == (ds = (data_string *)array_get_unused_element(con->environment, TYPE_STRING))) {
+					ds = data_string_init();
+				}
+
+				buffer_copy_string(ds->key, "GEOIP_COUNTRY_NAME");
+				buffer_copy_string(ds->value, gir->country_name);
+				array_insert_unique(con->environment, (data_unset *)ds);
+			}
+
+			/* get the city region */
+                        if (NULL == (ds = (data_string *)array_get_element(con->environment, "GEOIP_CITY_REGION"))) {
+                                if (NULL == (ds = (data_string *)array_get_unused_element(con->environment, TYPE_STRING))) {
+                                        ds = data_string_init();
+                                }
+
+                                buffer_copy_string(ds->key, "GEOIP_CITY_REGION");
+                                buffer_copy_string(ds->value, gir->region);
+                                array_insert_unique(con->environment, (data_unset *)ds);
+                        }
+
+                        /* get the city */
+                        if (NULL == (ds = (data_string *)array_get_element(con->environment, "GEOIP_CITY_NAME"))) {
+                                if (NULL == (ds = (data_string *)array_get_unused_element(con->environment, TYPE_STRING))) {
+                                        ds = data_string_init();
+                                }
+
+                                buffer_copy_string(ds->key, "GEOIP_CITY_NAME");
+                                buffer_copy_string(ds->value, gir->city);
+                                array_insert_unique(con->environment, (data_unset *)ds);
+                        }
+
+                        /* get the postal code */
+                        if (NULL == (ds = (data_string *)array_get_element(con->environment, "GEOIP_CITY_POSTAL_CODE"))) {
+                                if (NULL == (ds = (data_string *)array_get_unused_element(con->environment, TYPE_STRING))) {
+                                        ds = data_string_init();
+                                }
+
+                                buffer_copy_string(ds->key, "GEOIP_CITY_POSTAL_CODE");
+                                buffer_copy_string(ds->value, gir->postal_code);
+                                array_insert_unique(con->environment, (data_unset *)ds);
+                        }
+
+			/* get the latitude */
+			if (NULL == (ds = (data_string *)array_get_element(con->environment, "GEOIP_CITY_LATITUDE"))) {
+				if (NULL == (ds = (data_string *)array_get_unused_element(con->environment, TYPE_STRING))) {
+					ds = data_string_init();
+				}
+
+				char latitude[32];
+				sprintf(&latitude, "%f", gir->latitude);
+				buffer_copy_string(ds->key, "GEOIP_CITY_LATITUDE");
+				buffer_copy_string(ds->value, latitude);
+				array_insert_unique(con->environment, (data_unset *)ds);
+			}
+
+			/* get the long latitude */
+			if (NULL == (ds = (data_string *)array_get_element(con->environment, "GEOIP_CITY_LONG_LATITUDE"))) {
+                                if (NULL == (ds = (data_string *)array_get_unused_element(con->environment, TYPE_STRING))) {
+                                        ds = data_string_init();
+                                }
+
+                                char long_latitude[32];
+                                sprintf(&long_latitude, "%f", gir->longitude);
+                                buffer_copy_string(ds->key, "GEOIP_CITY_LONG_LATITUDE");
+                                buffer_copy_string(ds->value, long_latitude);
+                                array_insert_unique(con->environment, (data_unset *)ds);
+                        }
+
+			/* get the dma code */
+                        if (NULL == (ds = (data_string *)array_get_element(con->environment, "GEOIP_CITY_DMA_CODE"))) {
+                                if (NULL == (ds = (data_string *)array_get_unused_element(con->environment, TYPE_STRING))) {
+                                        ds = data_string_init();
+                                }
+
+                                char dc[5];
+                                sprintf(&dc, "%i", gir->dma_code);
+                                buffer_copy_string(ds->key, "GEOIP_CITY_DMA_CODE");
+                                buffer_copy_string(ds->value, dc);
+                                array_insert_unique(con->environment, (data_unset *)ds);
+                        }
+
+			/* get the area code */
+                        if (NULL == (ds = (data_string *)array_get_element(con->environment, "GEOIP_CITY_AREA_CODE"))) {
+                                if (NULL == (ds = (data_string *)array_get_unused_element(con->environment, TYPE_STRING))) {
+                                        ds = data_string_init();
+                                }
+
+                                char ac[5];
+                                sprintf(&ac, "%i", gir->area_code);
+                                buffer_copy_string(ds->key, "GEOIP_CITY_AREA_CODE");
+                                buffer_copy_string(ds->value, ac);
+                                array_insert_unique(con->environment, (data_unset *)ds);
+                        }
+		}
+	}
+
+        /* keep walking... (johnnie walker style ;) */
+        return HANDLER_GO_ON;
+}
+
+/* this function is called at dlopen() time and inits the callbacks */
+
+int mod_geoip_plugin_init(plugin *p) {
+	p->version     = LIGHTTPD_VERSION_ID;
+	p->name        = buffer_init_string("geoip");
+
+	p->init        = mod_geoip_init;
+	p->handle_subrequest_start = mod_geoip_subrequest;
+	p->set_defaults  = mod_geoip_set_defaults;
+	p->cleanup     = mod_geoip_free;
+
+	p->data        = NULL;
+
+	return 0;
+}
Index: doc/geoip.txt
===================================================================
--- /dev/null
+++ doc/geoip.txt
@@ -0,0 +1,148 @@
+{{{
+#!rst
+==============================
+ip based geographic lookups...
+==============================
+
+-----------------
+Module: mod_geoip
+-----------------
+
+
+
+.. contents:: Table of Contents
+
+Requirements
+============
+
+:Packages: GeoIP C API & Library (http://www.maxmind.com/download/geoip/api/c/)
+
+Overview
+========
+
+mod_geoip is a module for fast ip/location lookups. It uses MaxMind GeoIP /
+GeoCity databases.
+If the ip was found in the database the module sets the appropriate
+environments variables to the request, thus making other modules/fcgi be
+informed.
+
+.. note::
+
+  Currently only country/city databases are supported because they have a free
+  version that i can test.
+
+Configuration Options
+========================
+
+mod_geoip uses two configuration options.
+
+1) geoip.db-filename = <path to the geoip or geocity database>
+2) geoip.memory-cache = <enable|disable> : default disabled
+
+if enabled, mod_geoip will load the database binary file to
+memory for very fast lookups. the only penalty is memory usage.
+
+.. note::
+
+ mod_geoip will determine the database type automatically so if you enter
+ GeoCity databse path it will load GeoCity Env.
+
+Environment
+===========
+
+Every database sets it's own ENV:
+
+GeoIP (Country):
+----------------
+
+::
+
+ GEOIP_COUNTRY_CODE
+ GEOIP_COUNTRY_CODE3
+ GEOIP_COUNTRY_NAME
+
+GeoCity:
+--------
+
+::
+
+ GEOIP_COUNTRY_CODE
+ GEOIP_COUNTRY_CODE3
+ GEOIP_COUNTRY_NAME
+ GEOIP_CITY_NAME
+ GEOIP_CITY_POSTAL_CODE
+ GEOIP_CITY_LATITUDE
+ GEOIP_CITY_LONG_LATITUDE
+ GEOIP_CITY_DMA_CODE
+ GEOIP_CITY_AREA_CODE
+
+Examples
+========
+
+mod_geoip + php
+---------------
+
+when using fastcgi (not only php) you can access mod_geoip env and do as you
+please. this example just prints all mod_geoip envs to the client, html.
+
+Config-file ::
+
+ geoip.db-filename = "/your-geoip-db-path/GeoCityLite.dat"
+ geoip.memory-cache = "enable"
+
+index.php ::
+
+ <?php
+         $country_code = $_SERVER['GEOIP_COUNTRY_CODE'];
+         $country_code3 = $_SERVER['GEOIP_COUNTRY_CODE3'];
+         $country_name = $_SERVER['GEOIP_COUNTRY_NAME'];
+
+         $city_region = $_SERVER['GEOIP_CITY_REGION'];
+         $city_name = $_SERVER['GEOIP_CITY_NAME'];
+         $city_postal_code = $_SERVER['GEOIP_CITY_POSTAL_CODE'];
+         $city_latitude = $_SERVER['GEOIP_CITY_LATITUDE'];
+         $city_long_latitude = $_SERVER['GEOIP_CITY_LONG_LATITUDE'];
+         $city_dma_code = $_SERVER['GEOIP_CITY_DMA_CODE'];
+         $city_area_code = $_SERVER['GEOIP_CITY_AREA_CODE'];
+
+         echo "<html>\n<body>\n\t<br>\n";
+         echo 'Country Code: ' . $country_code . '<br>';
+         echo 'Country Code 3: ' . $country_code3 . '<br>';
+         echo 'Country Name: ' . $country_name . '<br>';
+         echo '<br>';
+         echo 'City Region: ' . $city_region . '<br>';
+         echo 'City Name: ' . $city_name . '<br>';
+         echo 'City Postal Code: ' . $city_postal_code . '<br>';
+         echo 'City Latitude: ' . $city_latitude . '<br>';
+         echo 'City Long Latitude: ' . $city_long_latitude . '<br>';
+         echo 'City DMA Code: ' . $city_dma_code . '<br>';
+         echo 'City Area Code: ' . $city_area_code . '<br>';
+         echo "</html>\n</body>";
+ ?>
+
+country based redirect
+----------------------
+
+Config-file ::
+
+ $HTTP["host"] =~ "www.domain.com" {
+     url.rewrite = ( "" => "/redirect.php")
+ }
+
+redirect.php ::
+
+ <?php
+        $country_code = $_SERVER['GEOIP_COUNTRY_CODE'];
+        header ('Location: http://' . $country_code . '.domain.com/');
+ ?>
+
+.. note::
+
+ Currently it is not possible to redirect based on mod_geoip directly in
+lighttpd config file. But i believe with the relase of lighttpd mod_magnet
+it would be. (mod_magnet will be available in lighttpd 1.4.12+)
+
+Downloads
+=========
+mod_geoip.c (http://trac.lighttpd.net/trac/attachment/wiki/Docs/ModGeoip/mod_geoip.c)
+}}}