首先要知道为什么要在openwrt搭建PHP环境并且识别验证码
因为很多宽带在登录上为了防止路由器或者其他的原因，添加了验证码，而我们就是不想去手动输入，有人问为什么不用ocr，目前我见到的是用Python在Linux上运行ocr，问题是openwrt的内存太小了，装Python是老鼠吃大象(当然可以挂载U盘去装)。
首先更新openwrt的软件源opkg update
安装PHP环境opkg install php5 php5-mod-gd php5-mod-curl php5-mod-session php5-mod-pdo php5-mod-mcrypt php5-mod-mbstring php5-fastcgi php5-cgi php5-mod-ctype php5-mod-exif php5-mod-iconv php5-mod-json php5-mod-sockets php5-mod-sqlite3 php5-mod-tokenizer php5-mod-zip
在/etc/httpd.conf最后面添加如下config uhttpd web
list listen_http 0.0.0.0:88
option home /www/php
option cgi_prefix /cgi-bin
option index_page “index.html index.php”
list interpreter “.php=/usr/bin/php-cgi”
上面监听http的88端口
设置88端口的根目录为/www/php
然后重启http服务/etc/init.d/uhttpd restart
然后打开/www/php
在里面添加php文件，然后添加如下的识别验证码的代码
(PHP验证码识别由HS5233提供)
注意！！！只能识别特别方正的全数字验证码！！！
放好以后，可以通过 路由器IP:88 访问PHP页面
最后写一个shell脚本，让路由器启动就自行登录#! /bin/sh –
while true
do
pinga=`ping 180.76.76.76 -c 1`
case “$pinga”
in
*ttl* ) ;;
* ) pingb=`ping 180.97.33.107 -c 1`
case “$pingb”
in
*ttl* ) ;;
* ) curl -g “http://192.168.1.1:88/index.php”;;
esac
esac
done
然后把本shell添加到路由器启动项里面即可！
我在验证码里面改动了一下，让他识别后帮我提交：<?php
error_reporting(0);
$cookie = dirname(__FILE__).”/valid.tmp”;//注意要先给当前目录777权限！
//执行
$validCode=getIdentify($cookie);
//需要开启PHP的shell_exec
$ip=shell_exec(“ifconfig eth1| grep ‘10.1’ | cut -f 2 -d ‘:’ | cut -f 1 -d ‘ ‘”);
$ip=substr($ip,0,-1);
//此处用var_dump($ip)查看截取多少位
$url=’http://125.88.59.131:10001/login.do’;
$username=””;//账号
$pwd=””;//密码
$data=”edubas=113.98.13.29&eduuser=”.$ip.”&userName1=”.$username.”&password1=”.base64_encode($pwd).”&rand=”.$validCode;
$result=http_post_request($url,$data,$cookie);
$str1=mb_convert_encoding($result, “utf-8”, “gb2312”);
if(preg_match(‘/success/’,$str1)){
echo “login success!”;
}else{
echo “login failed!”;
}
function http_post_request($url,$data,$cookie){
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_USERAGENT, ‘Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Trident/6.0)’);
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($curl, CURLOPT_AUTOREFERER, 1);
curl_setopt($curl, CURLOPT_REFERER, $url);
curl_setopt($curl, CURLOPT_POST, 1);
curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
curl_setopt($curl, CURLOPT_COOKIEFILE, $cookie);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
$result = curl_exec($curl);
curl_close($curl);
return $result;
}
function getIdentify($cookie){
$t=time();
$url = “http://125.88.59.131:10001/common/image.jsp?time=”.$t; //验证码地址
$curl = curl_init($url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_COOKIEFILE, $cookie);
curl_setopt($curl, CURLOPT_COOKIEJAR, $cookie);
$img = curl_exec($curl);
curl_close($curl);
$fp = fopen(“identify.jpg”,”w”);
fwrite($fp,$img);
fclose($fp);
$res = imagecreatefromjpeg(“identify.jpg”); //创建图像
$size = getimagesize(“identify.jpg”); //获得图像大小
// print_r($size);
//echo ‘
‘; //显示验证码
// exit;
$img_w = $size[0]-5; //图像宽度
$img_h = $size[1]-4; //图像高度
//二值化
for($i=3,$_i=0;$i
for($j=7,$_j=0; $j
$rgb = imagecolorat($res,$j,$i); //返回 image 所指定的图形中指定位置像素的颜色索引值。
$rgbarray = imagecolorsforindex($res, $rgb); //本函数用来取得调色盘上指定索引的颜色值。
if($rgbarray[‘red’]+$rgbarray[‘green’]+$rgbarray[‘blue’]<400){
$data_array[$_i][$_j] = 1; //验证码部分为1
// echo ‘■’;
}else{
$data_array[$_i][$_j] = 0; //空白为0
// echo ‘□’;
}
}
// echo ‘
‘;
}
// exit;
$img_h -= 3;
$img_w -= 7;
// 切割
for($i=0;$i
for($j=0;$j
if($i<9){
$Vword[0] .= $data_array[$j][$i];
}else if($i>=13&&$i<22){
$Vword[1] .= $data_array[$j][$i];
}else if($i>=26&&$i<35){
$Vword[2] .= $data_array[$j][$i];
}else if($i>=39){
$Vword[3] .= $data_array[$j][$i];
}
}
}
//四个字符查看，教学使用
// echo $Vword[0].’|’.strlen($Vword[0]).’
‘;
// echo $Vword[1].’|’.strlen($Vword[1]).’
‘;
// echo $Vword[2].’|’.strlen($Vword[2]).’
‘;
// echo $Vword[3].’|’.strlen($Vword[3]).’
‘;
// exit;
//字典
$array[0] = array(
‘000111111100001111111111100110000000110110000000001111000000000111100000000011011000000011001111111111100001111111000’
);
$array[1] = array(
‘000000000000001100000000110110000000011111000000001111111111111111111111111111000000000001100000000000110000000000011’
);
$array[2] = array(
‘011000000011111000000011111100000011011110000011001111000011000111100011000011011111000001100111000000110000000000000’
);
$array[3] = array(
‘011000000011011000110000111100011000011110001100001111000110000111100111100111011110111111001110001111000000000000000’
);
$array[4] = array(
‘000000001100000000011110000000111111000000111001100001110000110001111111111111111111111111100000000110000000000011000’
);
$array[5] = array(
‘111111100011011111110000111100011000011110001100001111000110000111100001100111110000111111011000001111000000000000000’
);
$array[6] = array(
‘000011111100000111111111100111001100110110001100001111000110000111100011000011110001110011101100011111100000000111100’
);
$array[7] = array(
‘000000000000011000000000001100000000011110000000111111000001111001100011100000110011000000011111000000001110000000000’
);
$array[8] = array(
‘000000001110001111001111101111111100111110011100001111000110000111100011100011111111110011101110001111100000000011100’
);
$array[9] = array(
‘001111000000001111110001101110011100011110000110001111000011000111100001100011011001100111001111111111000001111110000’
);
//根据字符串相似度识别
for($tmp_count=0;$tmp_count<4;$tmp_count++){
foreach($array as $key=>$value){
foreach($value as $v){
similar_text($Vword[$tmp_count],$v,$similarResult);
if($similarResult>$result[$tmp_count][‘similar’]){
$result[$tmp_count][‘similar’] = $similarResult;
$result[$tmp_count][‘num’] = $key;
}
}
}
}
return $result[0][‘num’].$result[1][‘num’].$result[2][‘num’].$result[3][‘num’];
}
?>