课程格子和超级课程表这两个应用,想必大学生都很熟悉,使用自己的学号和教务系统的密码,就可以将自己的课表导入,随时随地都可以在手机上查看。
其实稍微了解一点php的话,我们也可以做一个类似这样的web 应用。
1,解决掉验证码
其实这是正方的一个小bug,当我们进入登陆界面时,浏览器会去请求服务器,服务器会生成一个验证码图片。如果我们不去请求这个图片,那么正方后台也不会生成相应的 验证码,于是这样我们就有了可乘之机,让我高兴会儿~这时,我们在不填写验证码的情况下,可以很流畅的进入。大家可以在自己的电脑上禁止访问验证码的地址,然后试试这 是不是真的~当然,这只对正方有效。
2,php 的curl 模拟登陆
接下来就是相关代码了,相信很多人和我一样,只喜欢看例子,对于长篇大论的讲解,转头就走……不过这个习惯还是不好……废话不多说!
//模拟登陆function curl_request($url,$post="",$cookie="", $returnCookie=0){$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($curl, CURLOPT_REFERER, "这里一定要换成教务系统登陆的url"); //填写教务系统urlif($post) {curl_setopt($curl, CURLOPT_POST, 1);curl_setopt($curl, CURLOPT_POSTFIELDS, http_build_query($post));}if($cookie) {curl_setopt($curl, CURLOPT_COOKIE, $cookie);}curl_setopt($curl, CURLOPT_HEADER, $returnCookie);curl_setopt($curl, CURLOPT_TIMEOUT, 20);curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);$data = curl_exec($curl);if (curl_errno($curl)) {return curl_error($curl);}curl_close($curl);if($returnCookie){list($header, $body) = explode("
", $data, 2);preg_match_all("/Set-Cookie:([^;]*);/", $header, $matches);$info["cookie"] = substr($matches[1][0], 1);$info["content"] = $body;return $info;}else{return $data;}} 3,教务系统登陆页面的隐藏字段
举个栗子
复制代码 代码如下:
<input type="hidden" name="__VIEWSTATE" value="dDwyODE2NTM0OTg7Oz61eIbnKVojBioGYtg2vsy2SklwiA==">
这些东西在登陆的时候也是需要带上的,顺便贴出函数,顺便暴漏了博主的学校……皇家种地大学(主要是正则表达式的运用)
//登陆页面的隐藏字段 function getView(){$url = "http://jw.hzau.edu.cn/default2.aspx";$result = curl_request($url);$pattern = "/<input type="hidden" name="__VIEWSTATE" value="(.*?)" />/is";preg_match_all($pattern, $result, $matches);$res[0] = $matches[1][0]; return $res[0] ;} //返回教室查询页面的隐藏值 private function getViewJs($cookie,$xh){ $url = "http://jw.hzau.edu.cn/xxjsjy.aspx?xh={$xh}"; $result = curl_request($url,"",$cookie); $pattern = "/<input type="hidden" name="__VIEWSTATE" value="(.*?)" />/is"; preg_match_all($pattern, $result, $matches); $res[0] = $matches[1][0]; return $res[0] ; } 4,cookie 的获取
function login($xh,$pwd){$url = "http://jw.hzau.edu.cn/default2.aspx";$post["__VIEWSTATE"] = $this->getView();$post["txtUserName"] = $xh; //填写学号$post["TextBox2"] = $pwd; //填写密码$post["txtSecretCode"] = "";$post["lbLanguage"] = "";$post["hidPdrs"] = "";$post["hidsc"] = "";$post["RadioButtonList1"] = iconv("utf-8", "gb2312", "学生");$post["Button1"] = iconv("utf-8", "gb2312", "登录");$result = curl_request($url,$post,"", 1);return $result["cookie"];} 5,让我们来试试查课表的功能,格式有点乱额,大家凑合着看,我把课表转成了一个二维关联数组
//返回课表字符串private function classresult($xh,$pwd){date_default_timezone_set("PRC"); //时区设置$classList = "";//声明课表变量 $cookie = $this->login($xh,$pwd);$view = $this->getViewJs($cookie,$xh);//验证密码是否正确 //如果密码正确if (!empty($view)) {$url = "http://jw.hzau.edu.cn/xskbcx.aspx?xh={$xh}";$result = curl_request($url,"",$cookie); //保存的cookiespreg_match_all("/<table id="Table1"[wW]*?>([wW]*?)</table>/",$result,$out);$table = $out[0][0]; //获取整个课表 preg_match_all("/<td [wW]*?>([wW]*?)</td>/",$table,$out);$td = $out[1];$length = count($td); //获得课程列表for ($i=0; $i < $length; $i++) {$td[$i] = str_replace("<br>", "", $td[$i]); $reg = "/{(.*)}/"; if (!preg_match_all($reg, $td[$i], $matches)) {unset($td[$i]);}} $td = array_values($td); //将课程列表数组重新索引$tdLength = count($td);for ($i=0; $i < $tdLength; $i++) {$td[$i] = iconv("GB2312","UTF-8",$td[$i]);} //将课表转换成数组形式function converttoTable($table){$list = array("sun" => array("1,2" => "","3,4" => "","5,6" => "","7,8" => "","9,10" => ""),"mon" => array("1,2" => "","3,4" => "","5,6" => "","7,8" => "","9,10" => ""),"tues" => array("1,2" => "","3,4" => "","5,6" => "","7,8" => "","9,10" => ""),"wed" => array("1,2" => "","3,4" => "","5,6" => "","7,8" => "","9,10" => ""),"thur" => array("1,2" => "","3,4" => "","5,6" => "","7,8" => "","9,10" => ""),"fri" => array("1,2" => "","3,4" => "","5,6" => "","7,8" => "","9,10" => ""),"sat" => array("1,2" => "","3,4" => "","5,6" => "","7,8" => "","9,10" => ""));$week = array("sun"=>"周日","mon"=>"周一","tues"=>"周二","wed"=>"周三","thur"=>"周四","fri"=>"周五","sat"=>"周六");$order = array("1,2","3,4","5,6","7,8","9,10");foreach ($table as $key => $value) {$class = $value;foreach ($week as $key => $weekDay) {$pos = strpos($class,$weekDay);// echo $pos;if ($pos) {$weekArrayDay = $key; //获取list数组中的第一维keyforeach ($order as $key => $orderClass) {$pos = strpos($class,$orderClass);if ($pos) {$weekArrayOrder = $orderClass; //获取该课程是第几节break;}}break;}}$list[$weekArrayDay][$weekArrayOrder] = $class;}return $list;} //调用函数return converttoTable($td);}else{return 0;}} 6,再试试查询空教室的功能
//空教室查询结果public function roomresult(){$xh = ""; //设置学号$pwd = ""; //学号对应的密码 $cookie = $this->login($xh,$pwd);$url = "http://jw.hzau.edu.cn/xs_main.aspx?xh={$xh}";$result = curl_request($url,"",$cookie); //保存的cookies $url="http://jw.hzau.edu.cn/xxjsjy.aspx?xh={$xh}";$post["Button2"] = iconv("utf-8", "gb2312", "空教室查询");$post["__EVENTARGUMENT"]="";$post["__EVENTTARGET"]="";$post["__VIEWSTATE"] = $this->getViewJs($cookie,$xh);$post["ddlDsz"] = iconv("utf-8", "gb2312", "单");$post["ddlSyXn"] = "2014-2015"; //学年$post["ddlSyxq"] = "1";$post["jslb"] = "";$post["xiaoq"] = ""; $post["kssj"]=$_GET["start"]; //提交的开始查询时间 $post["sjd"]=$_GET["class"];//提交的课程节次 $post["xn"]="2014-2015";//所在学年$post["xq"]="2";//所在学期$post["xqj"]="6";//当天星期几$post["dpDataGrid1:txtPageSize"]=90;//每页显示条数 $result = curl_request($url,$post,$cookie,0); preg_match_all("/<span[^>]+>[^>]+span>/",$result,$out);$tip = iconv("gb2312", "utf-8", $out[0][3]);//获取页面前部的提示内容preg_match_all("/<table[wW]*?>([wW]*?)</table>/",$result,$out);$table = iconv("gb2312", "utf-8", $out[0][0]); //获取查询列表 $this->load->view("classroom",array("tip"=>$tip,"table"=>$table));} 总结起来就是这些了,每个学校的教务系统都不尽相同,这时我们可以借助火狐浏览器的 firebug 抓包,看看到底提交了哪些东西。
以上所述就是本文的全部内容了,希望大家能够喜欢。