viewer.php

<?php
/**
 * =======================================================================
 * 
 * PHP EMAIL CATCHER
 * Read emails sent by mail() and browse them
 * 
 * 👤 Author: Axel Hahn, Institute for Medical Education, University of Bern
 * 📄 Source: <https://git-repo.iml.unibe.ch/iml-open-source/php-emailcatcher>
 * 📜 License: GNU GPL 3.0
 * 
 * ----------------------------------------------------------------------
 * 2024-10-08  v0.1  initial version
 * =======================================================================
 */
require_once('classes/emailcatcher.class.php');


// $sJsonFile='/tmp/mailin.txt.json';

$sOpen=$_GET['open'] ?? '';
$sShowHtml=$_GET['html'] ?? '';

// ----------------------------------------------------------------------
// FUNCTIONS
// ----------------------------------------------------------------------


function showEmail($sId)
{
    $sReturn='';
    $oMail=new emailcatcher();
    if(!$oMail->setId($sId)){
        $sReturn.="❌ ERROR: wrong email id: $sId<br>";
    } else {

        $bIsHtml=strstr( $oMail->getBody(), '<html>');
        $sReturn.= '<div id="singlemessage">
            <table>
                <tr><td>🕜 DATE</td><td>'.$oMail->getField('date')
                    .'<span class="right"><a href="?" class="button close">❌ Close</a></span>
                </td></tr>
                <tr><td>👤 TO</td><td>'.$oMail->getField('to').'</td></tr>
                <tr><td colspan=2><strong>'.$oMail->getField('subject').'</strong></td></tr>
            </table>
            <br>
            <div class="content">
                📜 Header:<br>
                <pre>'.$oMail->getHeader().'</pre>
                <br>🗨️ '
                .($bIsHtml
                    ? '<a href="?open='.$sId.'&html=1" class="button">👁️ Show message as HTML</a><br><br>'
                    : 'Text only:'
                )
                .'<pre>'.htmlentities($oMail->getBody()).'</pre>'
                .'<br>
                <span class="right"><a href="?" class="button close">❌ Close</a></span><br>
                <br>'
            .'</div>'
        .'</div>'
        ;
    }
    return $sReturn;
}

function showHtmlEmail($sId): void
{
    $oMail=new emailcatcher();
    echo '<button onclick="history.back();return false;">back</button><br>';
    if(!$oMail->setId($sId)){
        echo "❌ ERROR: wrong email id: $sId<br>";
    } else {
        echo $oMail->getBody();
        die();
    }
}
// ----------------------------------------------------------------------
// MAIN
// ----------------------------------------------------------------------

$oMail=new emailcatcher();
$aEmails=$oMail->readEmails();

$sOut='';
$sMessage='';

if(!count($aEmails)){
    $sOut='❌ No email was found.<br>';
} else {

    // get a single email if id was given.
    if ($sOpen){
        if($sShowHtml=="1"){
            showHtmlEmail($sOpen);
        }
        $sMessage=showEmail($sOpen);    
    }

    $sOut='Messages: <strong>'.count($aEmails).'</strong><br>';

    foreach($aEmails as $aEmail){

        $sId=$aEmail['id'];

        $sOut.='
        <div id="'.$sId.'" class="email'.($sId==$sOpen ? ' open':'').'">
            '.(
                $sId!=$sOpen
                    ? '✉️ <a href="?open='.$sId.'">'.$aEmail['date'].' - to '.$aEmail['to'].': '.$aEmail['subject'].'</a>'
                    : '🔶 '. $aEmail['date'].' - to '.$aEmail['to'].': '.$aEmail['subject']
            )
        .'</div>';

    }
}


// write html page

echo "<!doctype html>
<html>
<head>
    <title>Email catcher :: viewer</title>
    <link rel=\"stylesheet\" href=\"viewer.css\">
</head>
<body>
    <h1><a href=\"?\">🕶️ Email catcher :: viewer</a></h1>

    <div id=\"messages\">$sOut</div>

    <footer>
        Email catcher
        📄 <a href=\"\">source</a>
        📗 <a href=\"\">docs</a>
    </footer>

    $sMessage
</body>
</html>
";

// ----------------------------------------------------------------------