|
发表于 2017-11-15 08:35:35
|
显示全部楼层
|阅读模式
来自 中国–河南–新乡
discuz登录流程解析,最近在研究,Ucenter的同步登陆机制,就先从discuz的登录开始了
1.form表单提交
member.php?mod=logging&action=login&loginsubmit=yes&handlekey=login&loginhash=Lm137&inajax=1
处理脚本 source/module/member/member_logging.php
- $ctl_obj = new logging_ctl();//初始化登陆对象,source\class\class_member.php=>class logging_ctl
-
- $ctl_obj->setting = $_G['setting'];
- $method = 'on_'.$_GET['action'];//$method='on_login';
- $ctl_obj->template = 'member/login';
-
- $ctl_obj->$method();//调用source\class\class_member.php=>on_login()
复制代码
下面对source\class\class_member.php的on_login进行分析
2.source\class\class_member.php
on_login函数太长,只贴出其核心部分,该函数也是登录过程中的核心函数,通过 userlogin(uc_client\control\user.php)进行数据分析,并对返回结果$result进行分析处理,返回结果$result['status']>0时,显示登陆成功,setloginstatus进行登录状态记录
- $result = userlogin($_GET['username'], $_GET['password'], $_GET['questionid'], $_GET['answer'], $this->setting['autoidselect'] ? 'auto' : $_GET['loginfield'], $_G['clientip']);//95行左右,userlogin为核心处理函数,来至uc_client\client.php//根据$result['status']返回值进行处理
- ············
- if($result['status'] > 0) //当$result['status']>0时,为登陆成功
- setloginstatus($result['member'], $_GET['cookietime'] ? 2592000 : 0);//记录登录状态,完成登录动作
复制代码
下面对uc_client\client.php的uc_user_login进行分析
3.uc_client\client.php
函数uc_user_login通过call_user_func调用uc_client\control\user.php的onlogin函数
- function uc_user_login($username, $password, $isuid = 0, $checkques = 0, $questionid = '', $answer = '', $ip = '') {
- $isuid = intval($isuid);
- $return = call_user_func(UC_API_FUNC, 'user', 'login', array('username'=>$username, 'password'=>$password, 'isuid'=>$isuid, 'checkques'=>$checkques, 'questionid'=>$questionid, 'answer'=>$answer, 'ip' => $ip));//UC_API_FUNC= uc_api_mysql,通过call_user_func回调调用uc_api_mysql,进行传参数,通过uc_api_mysql引入uc_client\control\user.php的onlogin函数
- return UC_CONNECT == 'mysql' ? $return : uc_unserialize($return);
- }
- ...................
- function uc_api_mysql($model, $action, $args=array()) {
- global $uc_controls;
- if(empty($uc_controls[$model])) {
- if(function_exists("mysql_connect")) {
- include_once UC_ROOT.'./lib/db.class.php';
- } else {
- include_once UC_ROOT.'./lib/dbi.class.php';
- }
- include_once UC_ROOT.'./model/base.php';
- include_once UC_ROOT."./control/$model.php";//引入uc_client\control\user.php
- eval("\$uc_controls['$model'] = new {$model}control();");
- }
- if($action{0} != '_') {
- $args = uc_addslashes($args, 1, TRUE);
- $action = 'on'.$action;
- $uc_controls[$model]->input = $args;
- return $uc_controls[$model]->$action($args);//调用uc_client\control\user.php的onlogin函数传参数
- } else {
- return '';
- }
- }
复制代码 4.uc_client\control\user.php
onlogin函数对数据进行分析,返回结果,回第2步中source\class\class_member.php的
- function onlogin() {
- $this->init_input();
- $isuid = $this->input('isuid');
- $username = $this->input('username');
- $password = $this->input('password');
- $checkques = $this->input('checkques');
- $questionid = $this->input('questionid');
- $answer = $this->input('answer');
- $ip = $this->input('ip');
-
- $this->settings['login_failedtime'] = is_null($this->settings['login_failedtime']) ? 5 : $this->settings['login_failedtime'];
-
- if($ip && $this->settings['login_failedtime'] && !$loginperm = $_ENV['user']->can_do_login($username, $ip)) {
- $status = -4;
- return array($status, '', $password, '', 0);
- }
-
- if($isuid == 1) {
- $user = $_ENV['user']->get_user_by_uid($username);
- } elseif($isuid == 2) {
- $user = $_ENV['user']->get_user_by_email($username);
- } else {
- $user = $_ENV['user']->get_user_by_username($username);
- }
-
- $passwordmd5 = preg_match('/^\w{32}$/', $password) ? $password : md5($password);
- if(empty($user)) {
- $status = -1;
- } elseif($user['password'] != md5($passwordmd5.$user['salt'])) {
- $status = -2;
- } elseif($checkques && $user['secques'] != $_ENV['user']->quescrypt($questionid, $answer)) {
- $status = -3;
- } else {
- $status = $user['uid'];
- }
- if($ip && $this->settings['login_failedtime'] && $status <= 0) {
- $_ENV['user']->loginfailed($username, $ip);
- }
- $merge = $status != -1 && !$isuid && $_ENV['user']->check_mergeuser($username) ? 1 : 0;
- return array($status, $user['username'], $password, $user['email'], $merge);
- }
复制代码
|
|