LMS-Estafeta/runtime/api.php

<?php 

/* 

VS SCORM 1.2 RTE - api.php
Rev 2010-04-30-01
Copyright (C) 2009, Addison Robson LLC

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.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, 
Boston, MA 02110-1301, USA.

*/
//  read database login information and connect
//require_once "../config.php";
//session_name($CFG->sessionname);
//session_start();
//  essential functions
require_once "subs.php";
require_once('mencrypt.php');
// input data
$SCOInstanceID =   urldecode($_GET['SCOInstanceID']);
$SCOInstanceID =   str_replace (' ','+', $SCOInstanceID );
$SCOInstanceID =  $desencriptar( $SCOInstanceID );
$urlencrypt =   urldecode($_GET['url']);
$urlencrypt =   str_replace (' ','+', $urlencrypt );
$scourl = $desencriptar( $urlencrypt );
dbConnect();
// initialize data elements in the database if they're not already set, and
// dynamically create the javascript code to initialize the local cache
$initializeCache = initializeSCO();
?>

<script language="javascript">
var API = new Object();
// ------------------------------------------
//   Status Flags
// ------------------------------------------
var flagFinished = false;
var flagInitialized = false;
// ------------------------------------------
//   SCO Data Cache - Initialization
// ------------------------------------------
<?php print $initializeCache; ?>

// ------------------------------------------
//   SCORM RTE Functions - Initialization
// ------------------------------------------
function LMSInitialize(dummyString) {

    // already initialized or already finished
    if ((flagInitialized) || (flagFinished)) { return "false"; }

    // set initialization flag
    flagInitialized = true;

    if(cache['cmi.core.lesson_status'] = 'completed') {
        flagFinished = true;
    }

    if(cache['cmi.core.score.raw'] = '100') {
        flagFinished = true;
    }

    // return success value
    return "true";

}

// ------------------------------------------
//   SCORM RTE Functions - Getting and Setting Values
// ------------------------------------------
function LMSGetValue(varname) {

    // not initialized or already finished
    if ((!flagInitialized) ) { return "false"; }

    // otherwise, return the requested data
    return cache[varname];

}

function LMSSetValue(varname, varvalue) {
    // not initialized or already finished
    if ((!flagInitialized) ) { return "false"; }
    // otherwise, set the requested data, and return success value
    cache[varname] = varvalue;
    //LMSCommit('');
    return "true";
}

// ------------------------------------------
//   SCORM RTE Functions - Saving the Cache to the Database
// ------------------------------------------
function LMSCommit(dummyString) {
    // not initialized or already finished
    if ((!flagInitialized) || (flagFinished)) { return "false"; }
    // code to prevent caching
    var d = new Date();
    var data = new Object();
    data['cmi.core.lesson_location'] = cache['cmi.core.lesson_location'];
    data['cmi.core.lesson_status'] = cache['cmi.core.lesson_status'];
    data['cmi.core.exit'] = cache['cmi.core.exit'];
    data['cmi.core.score.raw'] = cache['cmi.core.score.raw'];
    data['cmi.suspend_data'] = cache['cmi.suspend_data'];
    data['cmi.core.session_time'] = cache['cmi.core.session_time'];
    var elr = "";
    $.ajax({
            url: 'commit.php',
            type: 'POST',
            data: {
                SCOInstanceID: <?php print $SCOInstanceID; ?>,
                data: JSON.stringify(data),
                code: d.getTime()
            }
        })
        .done(function() {
            
            elr = "true";
        })
        .fail(function() {
            console.log('Problem with AJAX Request in LMSCommit()');
            elr = "false";
        })
        .always(function() {
            
            return elr;
        });
}

// ------------------------------------------
//   SCORM RTE Functions - Closing The Session
// ------------------------------------------
function LMSFinish(dummyString) {
    // not initialized or already finished
    if ((!flagInitialized) || (flagFinished)) { return "false"; }
    var d = new Date();
    // commit cached values to the database
    //LMSCommit('');
     var data = new Object();
    data['cmi.core.lesson_location'] = cache['cmi.core.lesson_location'];
    data['cmi.core.lesson_status'] = cache['cmi.core.lesson_status'];
    data['cmi.core.exit'] = cache['cmi.core.exit'];
    data['cmi.core.score.raw'] = cache['cmi.core.score.raw'];
    data['cmi.suspend_data'] = cache['cmi.suspend_data'];
    data['cmi.core.session_time'] = cache['cmi.core.session_time'];
    // commit cached values to the database
    // code to prevent caching
    var computeTimeString = computeTime();
    var elr = "";
    $.ajax({
            url: 'finish.php',
            type: 'POST',
            data: {
                SCOInstanceID: <?php print $SCOInstanceID; ?>,
                code: d.getTime(),
                computeTimeString: computeTimeString,
                data: JSON.stringify(data)
            },
        })
        .done(function() {
            elr = "true";
        })
        .fail(function() {
            alert('Problem with AJAX Request in LMSFinish()');
            elr = "";
        })
        .always(function() {
            flagFinished = true;
            return elr;
        });
}

// ------------------------------------------
//   SCORM RTE Functions - Error Handling
// ------------------------------------------
function LMSGetLastError() {
    return 0;
}

function LMSGetDiagnostic(errorCode) {
    return "diagnostic string";
}

function LMSGetErrorString(errorCode) {
    return "error string";
}

// ------------------------------------------
//   AJAX Request Handling
// ------------------------------------------
function createRequest() {
    var request;
    try {
        request = new XMLHttpRequest();
    } catch (tryIE) {
        try {
            request = new ActiveXObject("Msxml2.XMLHTTP");
        } catch (tryOlderIE) {
            try {
                request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (failed) {
                alert("Error creating XMLHttpRequest");
            }
        }
    }
    return request;
}

// ------------------------------------------
//   URL Encoding
// ------------------------------------------
function urlencode(str) {
    var histogram = {},
        unicodeStr = '',
        hexEscStr = '';
    var ret = (str + '').toString();

    var replacer = function(search, replace, str) {
        var tmp_arr = [];
        tmp_arr = str.split(search);
        return tmp_arr.join(replace);
    };

    // The histogram is identical to the one in urldecode.
    histogram["'"] = '%27';
    histogram['('] = '%28';
    histogram[')'] = '%29';
    histogram['*'] = '%2A';
    histogram['~'] = '%7E';
    histogram['!'] = '%21';
    histogram['%20'] = '+';
    histogram['\u00DC'] = '%DC';
    histogram['\u00FC'] = '%FC';
    histogram['\u00C4'] = '%D4';
    histogram['\u00E4'] = '%E4';
    histogram['\u00D6'] = '%D6';
    histogram['\u00F6'] = '%F6';
    histogram['\u00DF'] = '%DF';
    histogram['\u20AC'] = '%80';
    histogram['\u0081'] = '%81';
    histogram['\u201A'] = '%82';
    histogram['\u0192'] = '%83';
    histogram['\u201E'] = '%84';
    histogram['\u2026'] = '%85';
    histogram['\u2020'] = '%86';
    histogram['\u2021'] = '%87';
    histogram['\u02C6'] = '%88';
    histogram['\u2030'] = '%89';
    histogram['\u0160'] = '%8A';
    histogram['\u2039'] = '%8B';
    histogram['\u0152'] = '%8C';
    histogram['\u008D'] = '%8D';
    histogram['\u017D'] = '%8E';
    histogram['\u008F'] = '%8F';
    histogram['\u0090'] = '%90';
    histogram['\u2018'] = '%91';
    histogram['\u2019'] = '%92';
    histogram['\u201C'] = '%93';
    histogram['\u201D'] = '%94';
    histogram['\u2022'] = '%95';
    histogram['\u2013'] = '%96';
    histogram['\u2014'] = '%97';
    histogram['\u02DC'] = '%98';
    histogram['\u2122'] = '%99';
    histogram['\u0161'] = '%9A';
    histogram['\u203A'] = '%9B';
    histogram['\u0153'] = '%9C';
    histogram['\u009D'] = '%9D';
    histogram['\u017E'] = '%9E';
    histogram['\u0178'] = '%9F';

    // Begin with encodeURIComponent, which most resembles PHP's encoding functions
    ret = encodeURIComponent(ret);

    for (unicodeStr in histogram) {
        hexEscStr = histogram[unicodeStr];
        ret = replacer(unicodeStr, hexEscStr, ret); // Custom replace. No regexing
    }

    // Uppercase for full PHP compatibility
    return ret.replace(/(\%([a-z0-9]{2}))/g, function(full, m1, m2) {
        return "%" + m2.toUpperCase();
    });
}
API.LMSInitialize = LMSInitialize;
API.LMSGetValue = LMSGetValue;
API.LMSSetValue = LMSSetValue;
API.LMSCommit = LMSCommit;
API.LMSFinish = LMSFinish;
API.LMSGetLastError = LMSGetLastError;
API.LMSGetErrorString = LMSGetErrorString;
var startDate = 0;
function resizeIframe(iframe) {
    var padding = 50;
    if( $("#navsco").length > 0 ){
        var navbar360 = $("#navsco").outerHeight();
    }else{
        var navbar360 = 0;
    }
    
    padding = padding + navbar360;
    if (iframe.contentWindow.document.body.scrollHeight < (window.innerHeight - padding))
        iframe.height = iframe.contentWindow.document.body.scrollHeight + "px";
    else
        iframe.height = (window.innerHeight + padding) + "px";
}

/**
 * Descripción: Inica el conteo del tiempo en el sco
 * @return
 * @method startTimer
 * @return 
 */
function startTimer() {
    startDate = new Date().getTime();
}
/**
 * Descripción: calucla el tiempo que el usuario permance en el sco
 * @method computeTime
 * @return formattedTime
 */
function computeTime() {
    var formattedTime = "00:00:00.0";
    if (startDate != 0) {
        var currentDate = new Date().getTime();
        var elapsedSeconds = ((currentDate - startDate) / 1000);
        formattedTime = convertTotalSeconds(elapsedSeconds);
    }
    return formattedTime;

}
/**
 * Descripción: convierte el tiempo en segundos
 * @method convertTotalSeconds
 * @param ts de tipo time
 * @return rtnVal
 */
function convertTotalSeconds(ts) {
    var Sec = (ts % 60);
    ts -= Sec;
    var tmp = (ts % 3600);
    ts -= tmp;
    if ((ts % 3600) != 0) var Hour = "00";
    else var Hour = "" + (ts / 3600);
    if ((tmp % 60) != 0) var Min = "00";
    else var Min = "" + (tmp / 60);
    Sec = "" + Sec
    Sec = Sec.substring(0, Sec.indexOf("."))
    if (Hour.length < 2) Hour = "0" + Hour;
    if (Min.length < 2) Min = "0" + Min;
    if (Sec.length < 2) Sec = "0" + Sec;
    var rtnVal = Hour + ":" + Min + ":" + Sec;
    return rtnVal;
}

</script>
<?php
function generateRandomString($length = 10) {
    $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
    $charactersLength = strlen($characters);
    $randomString = '';
    for ($i = 0; $i < $length; $i++) {
        $randomString .= $characters[rand(0, $charactersLength - 1)];
    }
    return $randomString;
}
echo '<iframe onload="resizeIframe(this)" 
        onresize="resizeIframe(this)" frameborder="0" allowfullscreen src="'.$scourl.'?nocache='.generateRandomString(). '" 
        class="w-100 h-100 position-absolute scormiframe" id="scormiframe360" style="top:0; left:0">
    </iframe>';
echo '
<script type="text/javascript">
startTimer();
window.onresize = function() {
    //resizeIframe(document.getElementById("scormiframe360"));
}
</script>';
?>