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@aileron
aileron committed Jul 10, 2011
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23 changes: 23 additions & 0 deletions README
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モバイルサイト作成の際に、IPアドレスによる振り分けを行う目的の為に作成しました

* summary
mod_cidr_lookupは、アクセスしてきたクライアントのIPアドレスが
起動時に読み込んでおいたCIDRブロック群のいずれかにマッチするかどうかを
判別するためのモジュールです。
Apache 2.2系 (FreeBSD) にて 開発および動作実績が有ります。
マッチした結果は、環境変数 (X_CLIENT_TYPE) とHTTPリクエストヘッダ (X-Client-Type) にセットするので
Apache自身とバックエンドのWebアプリの両方で
同じ情報を参照することができます。

* install
sudo、wget、apxsがコマンドが使用可能な環境での豪快なインストール方法

wget http://aileron.cc/mod_cidr_lookup.c
sudo apxs -c -i -a mod_cidr_lookup.c

httpd.confに帯域ファイルへのパスを追加(絶対パス)
CIDRFile /usr/local/etc/apache22/cidr.txt

再起動
sudo apacectl restart
84 changes: 84 additions & 0 deletions cidr.txt
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# KDDI
KDDI 210.230.128.224/28
KDDI 121.111.227.160/27
KDDI 61.117.1.0/28
KDDI 219.108.158.0/27
KDDI 219.125.146.0/28
KDDI 61.117.2.32/29
KDDI 61.117.2.40/29
KDDI 219.108.158.40/29
KDDI 219.125.148.0/25
KDDI 222.5.63.0/25
KDDI 222.5.63.128/25
KDDI 222.5.62.128/25
KDDI 59.135.38.128/25
KDDI 219.108.157.0/25
KDDI 219.125.145.0/25
KDDI 121.111.231.0/25
KDDI 121.111.227.0/25
KDDI 118.152.214.192/26
KDDI 118.159.131.0/25
KDDI 118.159.133.0/25
KDDI 118.159.132.160/27
KDDI 111.86.142.0/26
KDDI 111.86.141.64/26
KDDI 111.86.141.128/26
KDDI 111.86.141.192/26
KDDI 118.159.133.192/26
KDDI 111.86.143.192/27
KDDI 111.86.143.224/27
KDDI 111.86.147.0/27
KDDI 111.86.142.128/26
KDDI 111.86.142.192/26
KDDI 111.86.143.0/26
# SOFTBANK
SOFTBANK 123.108.237.0/27
SOFTBANK 202.253.96.224/27
SOFTBANK 210.146.7.192/26
SOFTBANK 210.175.1.128/25
# DOCOMO
DOCOMO 210.153.84.0/24
DOCOMO 210.136.161.0/24
DOCOMO 210.153.86.0/24
DOCOMO 124.146.174.0/24
DOCOMO 124.146.175.0/24
DOCOMO 202.229.176.0/24
DOCOMO 202.229.177.0/24
DOCOMO 202.229.178.0/24
DOCOMO 202.229.179.0/24
DOCOMO 111.89.188.0/24
#CRAWLER-MB
CRAWLER-MB-DOCOMO 210.153.84.0/24
CRAWLER-MB-DOCOMO 210.136.161.0/24
CRAWLER-MB-DOCOMO 210.153.86.0/24
CRAWLER-MB-DOCOMO 124.146.174.0/24
CRAWLER-MB-DOCOMO 124.146.175.0/24
CRAWLER-MB-DOCOMO 202.229.176.0/22
CRAWLER-MB-DOCOMO 202.229.179.0/24
CRAWLER-MB-DOCOMO 111.89.188.0/24
CRAWLER-MB-DOCOMO 111.89.188.0/22
CRAWLER-MB-AU 66.249.64.0/20
CRAWLER-MB-GOOGLE 66.102.0.0/16
CRAWLER-MB-GOOGLE 64.233.0.0/16
CRAWLER-MB-GOOGLE 216.239.0.0/16
CRAWLER-MB-GOOGLE 74.125.0.0/16
CRAWLER-MB-GOOGLE 66.249.64.0/20
CRAWLER-MB-GOOGLE 72.14.192.0/18
CRAWLER-MB-GOOGLE 209.85.128.0/17
CRAWLER-MB-YAHOO 124.83.159.128/26
CRAWLER-MB-YAHOO 124.83.159.224/27
CRAWLER-MB-YAHOO 124.83.191.0/27
CRAWLER-MB-YAHOO 203.216.255.112/29
CRAWLER-MB-MOBA 202.238.103.126
CRAWLER-MB-MOBA 202.213.221.97
CRAWLER-MB-GOO 218.213.130.0/24
CRAWLER-MB-GOO 203.131.250.0/24
CRAWLER-MB-GOO 203.131.251.0/24
CRAWLER-MB-GOO 203.131.252.0/24
CRAWLER-MB-GOO 203.131.253.0/24
CRAWLER-MB-GOO 203.131.254.0/24
CRAWLER-MB-GOO 203.131.255.0/24
CRAWLER-MB-GOO 203.131.248.0/21
CRAWLER-MB-GOO 218.213.128.0/20
CRAWLER-MB-FROUTE 60.43.36.253
CRAWLER-MB-LIVEDOOR 203.104.254.0/24
238 changes: 238 additions & 0 deletions mod_cidr_lookup.c
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/*
** mod_cidr_lookup.c -- Apache sample cidr_lookup module
** [Autogenerated via ``apxs -n cidr_lookup -g'']
**
** To play with this sample module first compile it into a
** DSO file and install it into Apache's modules directory
** by running:
**
** $ apxs -c -i mod_cidr_lookup.c
**
** Then activate it in Apache's httpd.conf file for instance
** for the URL /cidr_lookup in as follows:
**
** # httpd.conf
** LoadModule cidr_lookup_module modules/mod_cidr_lookup.so
** <Location /cidr_lookup>
** SetHandler cidr_lookup
** </Location>
**
** Then after restarting Apache via
**
** $ apachectl restart
**
** you immediately can request the URL /cidr_lookup and watch for the
** output of this module. This can be achieved for instance via:
**
** $ lynx -mime_header http://localhost/cidr_lookup
**
** The output should be similar to the following one:
**
** HTTP/1.1 200 OK
** Date: Tue, 31 Mar 1998 14:42:22 GMT
** Server: Apache/1.3.4 (Unix)
** Connection: close
** Content-Type: text/html
**
** The sample page from mod_cidr_lookup.c
*/

#include "httpd.h"
#include "http_config.h"
#include "http_protocol.h"
#include "http_log.h"
#include "ap_config.h"

#include "apr.h"
#include "apr_file_io.h"
#include "apr_network_io.h"
#include "apr_strings.h"

#include <string.h>

#define MAX_CIDR_ITEM 1024
#define get_module_context(c) (cidr_item *)(ap_get_module_config(c, &cidr_lookup_module))
#define MODULE_NAME cidr_lookup_module

#ifdef DEBUG
#define DEBUGLOG(...) ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_NOTICE, 0, NULL, __VA_ARGS__)
#else
#define DEBUGLOG(...)
#endif

#define ERRORLOG(...) ap_log_error(APLOG_MARK, APLOG_ERR, 0, NULL, __VA_ARGS__)

module AP_MODULE_DECLARE_DATA cidr_lookup_module;

typedef struct CIDRItem
{
apr_ipsubnet_t *subnet;
char *type ;

} cidr_item;

typedef struct CIDRLookupContext
{
apr_pool_t *pool;
cidr_item **items;
int items_len ;

} cidr_context;

static void *new_cidr_context(const apr_pool_t *p, const server_rec *s)
{
DEBUGLOG("new_cidr_context");
cidr_context *c = apr_palloc(p, sizeof(cidr_context));
c->items = apr_palloc(p, MAX_CIDR_ITEM * sizeof(cidr_item *));
c->items_len = 0 ;
DEBUGLOG("new_cidr_context ok");
return c;
}

static char *set_cidr_type(cmd_parms *cmd, void *mconfig, char *filename)
{
DEBUGLOG("set_cidr_type");

/*
* pool
*/
apr_pool_t *p = cmd->pool ;

/*
* cidr_context
*/
cidr_context *c = get_module_context(cmd->server->module_config);

/*
* itmes
*/
cidr_item **items = c->items;

/*
* open file
*/
apr_file_t *file ;
if(apr_file_open(&file, filename, APR_READ, APR_OS_DEFAULT, cmd->pool))
{
DEBUGLOG("file not open [%s]", filename);
return NULL;
}


/*
* read line
*/
char line[255];
while( apr_file_gets(line, 255, file) == APR_SUCCESS )
{
if(c->items_len == MAX_CIDR_ITEM)
{
ERRORLOG("cidr item max size ...");
break;
}

const int line_len = strlen(line);
line[ line_len-1 ] = '\0';
DEBUGLOG("line:%s", line);
if(line[0]=='#' || line_len==0)
{
continue;
}

char *last=0;
const char *type = apr_strtok(line, " ", &last);
const char *ipnet = last;
last = 0;

DEBUGLOG("type:%s,ip:%s", type,ipnet);

const char *ip = apr_strtok(ipnet, "/", &last);
const char *numbits = last;

apr_ipsubnet_t *subnet;
if(apr_ipsubnet_create(&subnet, ip, numbits, p)!=APR_SUCCESS)
{
DEBUGLOG("type:%s,ip:%s,numbits:%s error", type,ip,numbits);
continue ;
}

cidr_item *item = (cidr_item *) apr_palloc(p, sizeof(cidr_item));
item->type = apr_pstrdup(p, type);
item->subnet = subnet;
items[c->items_len++] = item;
}
apr_file_close(file);

DEBUGLOG("set_cidr_type ok [len:%d]", c->items_len);
return NULL;
}

static char *get_cidr_type(const cidr_context *c, const apr_sockaddr_t *remote_addr)
{
DEBUGLOG("get_cidr_type");
DEBUGLOG("get_cidr_type size:%d", c->items_len);

int i=0; int size= c->items_len;
for(i=0; i< size; i++)
{
DEBUGLOG("get_item %d", i);
const cidr_item *item = c->items[i];
DEBUGLOG("get_item %d ok", i);

DEBUGLOG("item->get");
const char *type = item->type;
DEBUGLOG("item->get type");
const apr_ipsubnet_t *subnet = item->subnet ;
DEBUGLOG("item->get type subnet ok");

DEBUGLOG("apr_ipsubnet_test");
if(apr_ipsubnet_test(subnet, remote_addr))
{
DEBUGLOG("apr_ipsubnet_test ok : %s", type);
return type;
}
}
return "unknown";
}

static int cidr_lookup_handler(const request_rec *r)
{
DEBUGLOG("cidr_lookup_handler");
const cidr_context *c = get_module_context(r->server->module_config);
const char *cidr_type = get_cidr_type(c,r->connection->remote_addr);
DEBUGLOG("cidr_lookup ok");

DEBUGLOG("set header...");
apr_table_set(r->subprocess_env, "X_CLIENT_TYPE", cidr_type);
apr_table_set(r->headers_in, "X-Client-Type", cidr_type);
DEBUGLOG("set header ok");
DEBUGLOG("cidr_lookup_handler ok [remote_addr: %s] [X-Client-Type or X_CLIENT_TYPE : %s]"
,r->connection->remote_ip, cidr_type);
return OK;
}

static void cidr_lookup_register_hooks(apr_pool_t *p)
{
DEBUGLOG("cidr_lookup_register_hooks");
ap_hook_post_read_request(cidr_lookup_handler, NULL, NULL, APR_HOOK_MIDDLE);
ap_hook_header_parser(cidr_lookup_handler, NULL, NULL, APR_HOOK_MIDDLE);
DEBUGLOG("cidr_lookup_register_hooks ok");
}

static const command_rec cidr_module_cmds[] =
{
AP_INIT_TAKE1("CIDRFile", set_cidr_type, NULL, OR_OPTIONS, "cidr file name"),
{ NULL },
};

/* Dispatch list for API hooks */
module AP_MODULE_DECLARE_DATA cidr_lookup_module = {
STANDARD20_MODULE_STUFF,
NULL, /* create per-dir config structures */
NULL, /* merge per-dir config structures */
new_cidr_context, /* create per-server config structures */
NULL, /* merge per-server config structures */
cidr_module_cmds, /* table of config file commands */
cidr_lookup_register_hooks /* register hooks */
};

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