<?php
/*
 * CATS
 * Firefox Toolbar Module
 *
 * Copyright (C) 2007 Cognizo Technologies, Inc.
 *
 *
 * The contents of this file are subject to the CATS Public License
 * Version 1.1a (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://www.catsone.com/.
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
 * License for the specific language governing rights and limitations
 * under the License.
 *
 * The Original Code is "CATS Standard Edition".
 *
 * The Initial Developer of the Original Code is Cognizo Technologies, Inc.
 * Portions created by the Initial Developer are Copyright (C) 2005 - 2007
 * (or from the year in which this file was created to the year 2007) by
 * Cognizo Technologies, Inc. All Rights Reserved.
 *
 *
 * $Id: ToolbarUI.php 3691 2007-11-26 18:12:48Z brian $
 */

include_once('./lib/SystemInfo.php');
include_once('./lib/Mailer.php');
include_once('./lib/Site.php');
include_once('./lib/Candidates.php');
include_once('./lib/DocumentToText.php');
include_once('./lib/License.php');

/* Toolbar library version. Increment to notify toolbars of an update. */
define('TOOLBAR_LIB_VERSION', 32);


class ToolbarUI extends UserInterface
{
    public function __construct()
    {
        parent::__construct();

        $this->_authenticationRequired = false;
        $this->_moduleName = 'toolbar';
        $this->_moduleDirectory = 'toolbar';
    }

    public function handleRequest()
    {
        //$this->authenticate();

        $action = $this->getAction();

        switch ($action)
        {
            case 'attemptLogin':
                $this->attemptLogin();
                break;

            case 'getRemoteVersion':
                $this->getRemoteVersion();
                break;

            case 'getJavaScriptLib':
                $this->getJavaScriptLibLegacy();
                break;

            case 'authenticate':
                $this->authenticate();
                break;

            case 'checkEmailIsInSystem':
                $this->checkEmailIsInSystem();
                break;

            case 'storeMonsterResumeText':
                $this->storeMonsterResumeText();
                break;

            case 'getLicenseKey':
                $this->getLicenseKey();
                break;
        }
    }

    private function _authenticate()
    {
        /* Get username / password, and apply ASP username if applicable. */
        $siteID = 1;
        $siteName = '';

        $username = $this->getTrimmedInput('CATSUser', $_GET);
        $password = $this->getTrimmedInput('CATSPassword', $_GET);

        if (!eval(Hooks::get('TOOLBAR_AUTHENTICATE_PRE'))) return;

        if(!$_SESSION['CATS']->isLoggedIn())
        {
            $_SESSION['CATS']->processLogin($username, $password);
        }

        if (!eval(Hooks::get('TOOLBAR_AUTHENTICATE_POST'))) return;

        if (!$_SESSION['CATS']->isLoggedIn())
        {
            //echo 'cats_authenticationFailed(); Message:You do not have permision to use the toolbar.';
            echo 'cats_authenticationFailed(); Message:'.$_SESSION['CATS']->getLoginError();
            die();
        }

        if (!ModuleUtility::moduleExists('asp'))
        {
            if (!LicenseUtility::isProfessional())
            {
                echo 'cats_authenticationFailed(); Message:The FireFox toolbar extension '
                    . 'is only available to CATS Professional users. See catsone.com/Professional for '
                    . 'more information.';
                die();
            }
        }

        return true;
    }

    private function authenticate()
    {
        if (!$this->_authenticate())
        {
            // FIXME: Do something here?
        }

        // FIXME: Make protocol less bandwidth-intensive.
        echo 'cats_connected = true';
        if (isset($_GET['callback']))
        {
            echo ' EVAL=', $_GET['callback'];
        }
    }

    private function getRemoteVersion()
    {
        // Obsolete function used to notify old toolbars that they are no longer supported.
        // FIXME:  Remove me after toolbar migration is finished.
        echo 99999;
    }


    private function getJavaScriptLibLegacy()
    {
        // FIXME: Send a JS library that just makes a button indicating that their version
        // is out of date.

        $toolbarLibrary = @file_get_contents('./modules/toolbar/toolbarlibForLegacy.js');
        echo $toolbarLibrary;
        return;
    }

    private function checkEmailIsInSystem()
    {
        if (!eval(Hooks::get('TOOLBAR_CHECK_EMAIL'))) return;

        $this->_authenticate();

        $email = $this->getTrimmedInput('email', $_GET);
        if (empty($email))
        {
            $this->fatal('No e-mail address.');
        }

        echo $email;

        $candidates = new Candidates($this->_siteID);
        $candidateID = $candidates->getIDByEmail($email);
        if ($candidateID < 0)
        {
            echo ':0';
        }
        else
        {
            echo ':1';
        }

        flush();
    }

    private function storeMonsterResumeText()
    {
        $this->_authenticate();

        if (!isset($_POST['resumeText']))
        {
            $this->fatal('No resume.');
        }

        $resumeText = $_POST['resumeText'];

        /* The toolbar inputs the BODY of the monster page.  First, we convert
         * the HTML of the BODY into text with html2text...
         */
        $temporaryFile = FileUtility::makeRandomTemporaryFilePath() . '.html';

        if (file_put_contents($temporaryFile, $resumeText) === false)
        {
            $this->fatal('Failed to save data for parsing.');
        }

        $documentToText = new DocumentToText();

        $documentType = $documentToText->getDocumentType($temporaryFile, 'text/html');
        $documentToText->convert($temporaryFile, $documentType);

        if ($documentToText->isError())
        {
            $this->_isTextExtractionError = true;
            $this->_textExtractionError = $documentToText->getError();
            $parsedText = '';
        }
        else
        {
            $parsedText = $documentToText->getString();
        }

        @unlink($temporaryFile);

        /* Now, we have to determine where the resume begins and ends and cut out the
         * top and bottom of the resume...
         */

        $parsedTextArray = explode("\n", $parsedText);

        $firstLine = 0;
        $lastLine = count($parsedTextArray) - 1;

        foreach ($parsedTextArray as $line => $data)
        {
            /* Find first line */
            if ((strpos($data, 'RESUME') !== false || strpos($data, 'CV') !== false) &&
                strpos($data, '^BACK_TO_TOP') !== false &&
                $firstLine == 0)
            {
                $firstLine = $line + 1;
            }

            /* Find last line */
            if (strpos($data, '^BACK_TO_TOP') !== false ||
                strpos($data, 'Back_to_top') !== false ||
                strpos($data, 'Back to top') !== false)
            {
                $lastLine = $line - 1;
            }

            /* TODO:  Look for more keywords present at the bottom of this page
             * in case Back_top_top goes away
             */

            /* Remove the back to top links from the resume to prevent indexing */
            if (strpos($data, '^BACK_TO_TOP') !== false)
            {
                $data = str_replace('^BACK TO TOP', '', $data);
            }

            /* Convert bullet points into - symbols. */
            $data = str_replace('%u2022', '-', $data);

            $parsedTextArray[$line] = $data;
        }

        $parsedTextArray = array_slice($parsedTextArray, $firstLine, $lastLine - $firstLine + 1);

        $parsedText = implode("\n", $parsedTextArray);

        /* Remember the output in the session and return to the toolbar
         * the ID number of the data.
         */
        $storedID = $_SESSION['CATS']->storeData($parsedText);

        echo $storedID;

        flush();
    }

    public function getLicenseKey()
    {
        echo (defined('LICENSE_KEY') ? LICENSE_KEY : '');
    }
}

?>