first stage of headline element handling refactoring

[tt-rss.git] / lib / phpqrcode / index.php

<?php    
/*\r
 * PHP QR Code encoder\r
 *\r
 * Exemplatory usage\r
 *\r
 * PHP QR Code is distributed under LGPL 3\r
 * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>\r
 *\r
 * This library is free software; you can redistribute it and/or\r
 * modify it under the terms of the GNU Lesser General Public\r
 * License as published by the Free Software Foundation; either\r
 * version 3 of the License, or any later version.\r
 *\r
 * This library is distributed in the hope that it will be useful,\r
 * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\r
 * Lesser General Public License for more details.\r
 *\r
 * You should have received a copy of the GNU Lesser General Public\r
 * License along with this library; if not, write to the Free Software\r
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA\r
 */\r
    \r
    echo "<h1>PHP QR Code</h1><hr/>";
    \r
    //set it to writable location, a place for temp generated PNG files\r
    $PNG_TEMP_DIR = dirname(__FILE__).DIRECTORY_SEPARATOR.'temp'.DIRECTORY_SEPARATOR;\r
    \r
    //html PNG location prefix\r
    $PNG_WEB_DIR = 'temp/';\r
\r
    include "qrlib.php";    \r
    \r
    //ofcourse we need rights to create temp dir\r
    if (!file_exists($PNG_TEMP_DIR))\r
        mkdir($PNG_TEMP_DIR);
    \r
    \r
    $filename = $PNG_TEMP_DIR.'test.png';\r
    \r
    //processing form input\r
    //remember to sanitize user input in real-life solution !!!\r
    $errorCorrectionLevel = 'L';\r
    if (isset($_REQUEST['level']) && in_array($_REQUEST['level'], array('L','M','Q','H')))\r
        $errorCorrectionLevel = $_REQUEST['level'];    \r
\r
    $matrixPointSize = 4;\r
    if (isset($_REQUEST['size']))\r
        $matrixPointSize = min(max((int)$_REQUEST['size'], 1), 10);\r
\r

    if (isset($_REQUEST['data'])) { \r
    \r
        //it's very important!\r
        if (trim($_REQUEST['data']) == '')\r
            die('data cannot be empty! <a href="?">back</a>');\r
            
        // user data\r
        $filename = $PNG_TEMP_DIR.'test'.md5($_REQUEST['data'].'|'.$errorCorrectionLevel.'|'.$matrixPointSize).'.png';
        QRcode::png($_REQUEST['data'], $filename, $errorCorrectionLevel, $matrixPointSize, 2);    \r
        
    } else {    \r
    \r
        //default data
        echo 'You can provide data in GET parameter: <a href="?data=like_that">like that</a><hr/>';    
        QRcode::png('PHP QR Code :)', $filename, $errorCorrectionLevel, $matrixPointSize, 2);    \r
        
    }    
        \r
    //display generated file
    echo '<img src="'.$PNG_WEB_DIR.basename($filename).'" /><hr/>';  \r
    \r
    //config form\r
    echo '<form action="index.php" method="post">\r
        Data:&nbsp;<input name="data" value="'.(isset($_REQUEST['data'])?htmlspecialchars($_REQUEST['data']):'PHP QR Code :)').'" />&nbsp;\r
        ECC:&nbsp;<select name="level">\r
            <option value="L"'.(($errorCorrectionLevel=='L')?' selected':'').'>L - smallest</option>\r
            <option value="M"'.(($errorCorrectionLevel=='M')?' selected':'').'>M</option>\r
            <option value="Q"'.(($errorCorrectionLevel=='Q')?' selected':'').'>Q</option>\r
            <option value="H"'.(($errorCorrectionLevel=='H')?' selected':'').'>H - best</option>\r
        </select>&nbsp;\r
        Size:&nbsp;<select name="size">';\r
        \r
    for($i=1;$i<=10;$i++)\r
        echo '<option value="'.$i.'"'.(($matrixPointSize==$i)?' selected':'').'>'.$i.'</option>';\r
        \r
    echo '</select>&nbsp;\r
        <input type="submit" value="GENERATE"></form><hr/>';\r
        \r
    // benchmark
    QRtools::timeBenchmark();