qa-open-layer.php

<?php

/*
	Question2Answer (c) Gideon Greenspan
	Open Login Plugin (c) Alex Lixandru

	http://www.question2answer.org/

	
	File: qa-plugin/open-login/qa-open-layer.php
	Version: 3.0.0
	Description: Extends current theme with additional functionalities


	This program is free software; you can redistribute it and/or
	modify it under the terms of the GNU General Public License
	as published by the Free Software Foundation; either version 2
	of the License, or (at your option) any later version.
	
	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	More about this license: http://www.question2answer.org/license.php
*/


class qa_html_theme_layer extends qa_html_theme_base
{
	function doctype() {
		parent::doctype();
		
		if(QA_FINAL_EXTERNAL_USERS) {
			return;
		}

		// check if logged in
		$handle = qa_get_logged_in_handle();
		if (isset($handle)) {
		
			if(qa_request() == '' && count($_GET) > 0) {
				// Check if we need to associate another provider
				$this->process_login();
			}
			
			// see if the account pages are accessed
			$tmpl = array( 'account', 'favorites' );
			$user_pages = array('user', 'user-wall', 'user-activity', 
				'user-questions', 'user-answers' );
			$logins_page = qa_request() == 'logins' && !qa_get('confirm');
			$urlhandle = qa_request_part(1);
			
			if ( in_array($this->template, $tmpl) || $logins_page || 
				(in_array($this->template, $user_pages) && $handle == $urlhandle) ) {
				// add a navigation item
				$this->content['navigation']['sub']['logins'] = array(
					'label' => qa_lang_html('plugin_open/my_logins_nav'),
					'url' => qa_path_html('logins'),
					'selected' => $logins_page
				);
				return;
			}
			
		} else {
			
			$title = qa_lang_html('plugin_open/login_title');
			$descr = qa_lang_html('plugin_open/login_description');
			
			// hide login/register links from navigation on any page
			if(qa_opt('open_login_hideform') == '1') {
				unset($this->content['navigation']['user']['login']);
				unset($this->content['navigation']['user']['register']);
			}
		
			// then check if login/register pages are accessed
			$tmpl = array( 'register', 'login' );
			if ( !in_array($this->template, $tmpl) ) {
				return;
			}
			
			// hide regular login/register form on those pages only
			if(qa_opt('open_login_hideform') == '1') {
				$this->content['title'] = $title;
				$this->content['form'] = null;
			}
			
			// add some custom text
			if(!empty($this->content['custom'])) {
				$content = str_ireplace('<BR>', '', $this->content['custom']);
				$this->content['custom'] = "<div><p>$descr</p>$content</div>";
				
				if($this->content['form'] != null) {
					$this->content['custom'] = "<br /><br /><h1>$title</h1>{$this->content['custom']}";
				}
			}
		
		}
	}

	function head_css() {
		parent::head_css();
		
		$hidecss = qa_opt('open_login_css') == '1';
		$zocial = qa_opt('open_login_zocial') == '1';
		
		if (!$hidecss) {
			// display CSS inline
			$path = QA_HTML_THEME_LAYER_URLTOROOT;
			
			$this->output('<style type="text/css"><!--');
			$this->output(@file_get_contents( QA_HTML_THEME_LAYER_URLTOROOT . 'qa-open-login.css'));
			$this->output('//--></style>');
			
			if($zocial) {
				$this->output('<style type="text/css"><!--');
				$this->output("@import url('{$path}css/zocial.css');");
				$this->output('//--></style>');
			}
		}
	}

	function process_login() {
		$action = null;
		$key = null;
		
		if( !empty($_REQUEST['hauth_start']) ) {
			$key = trim(strip_tags($_REQUEST['hauth_start']));
			$action = 'process';
			
		} else if( !empty($_REQUEST['hauth_done']) ) {
			$key = trim(strip_tags($_REQUEST['hauth_done']));
			$action = 'process';
		}
		
		if($key == null || $action == null) {
			return false;
		}
		
		require_once( QA_HTML_THEME_LAYER_URLTOROOT . "Hybrid/Auth.php" );
		require_once( QA_HTML_THEME_LAYER_URLTOROOT . "Hybrid/Endpoint.php" ); 
		Hybrid_Endpoint::process();
	}
	
}