<?php

/**
 * mail_fetch/fetch.php
 *
 * Fetch code.
 *
 * @copyright 1999-2026 The SquirrelMail Project Team
 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
 * @version $Id: fetch.php 15041 2026-01-15 10:52:11Z pdontthink $
 * @package plugins
 * @subpackage mail_fetch
 */

define('SM_PATH','../../');

require_once(SM_PATH . 'include/validate.php');
include_once(SM_PATH . 'functions/imap.php');
include_once(SM_PATH . 'plugins/mail_fetch/class.POP3.php');
include_once(SM_PATH . 'plugins/mail_fetch/functions.php' );

// don't load this page if this plugin is not enabled
//
global $plugins;
if (!in_array('mail_fetch', $plugins)) exit;

/* globals */
sqgetGlobalVar('username',   $username,   SQ_SESSION);
sqgetGlobalVar('key',        $key,        SQ_COOKIE);
sqgetGlobalVar('onetimepad', $onetimepad, SQ_SESSION);
sqgetGlobalVar('delimiter',  $delimiter,  SQ_SESSION);
global $imap_stream_options; // in case not defined in config
/* end globals */

function Mail_Fetch_Status($msg) {
    echo html_tag( 'table',
             html_tag( 'tr',
                 html_tag( 'td', sm_encode_html_special_chars( $msg ) , 'left' )
                     ),
                   '', '', 'width="90%"' );
    flush();
}

displayPageHeader($color, 'None');

$mailfetch_server_number = getPref($data_dir, $username, "mailfetch_server_number");
if (!isset($mailfetch_server_number)) $mailfetch_server_number=0;
$mailfetch_cypher = getPref($data_dir, $username, "mailfetch_cypher");
if ($mailfetch_server_number<1) $mailfetch_server_number=0;
for ($i=0;$i<$mailfetch_server_number;$i++) {
    $mailfetch_server_[$i] = getPref($data_dir, $username, "mailfetch_server_$i");
    $mailfetch_port_[$i] = getPref($data_dir, $username, "mailfetch_port_$i");
    $mailfetch_alias_[$i] = getPref($data_dir, $username, "mailfetch_alias_$i");
    $mailfetch_user_[$i] = getPref($data_dir, $username, "mailfetch_user_$i");
    $mailfetch_pass_[$i] = getPref($data_dir, $username, "mailfetch_pass_$i");
    $mailfetch_lmos_[$i] = getPref($data_dir, $username, "mailfetch_lmos_$i");
    $mailfetch_login_[$i] = getPref($data_dir, $username, "mailfetch_login_$i");
    $mailfetch_uidl_[$i] = getPref($data_dir, $username, "mailfetch_uidl_$i");
    $mailfetch_subfolder_[$i] = getPref($data_dir, $username, "mailfetch_subfolder_$i");
    if( $mailfetch_cypher == 'on' ) {
        $mailfetch_pass_[$i] = decrypt( $mailfetch_pass_[$i] );
    }
}

echo '<br><center>';

echo html_tag( 'table',
         html_tag( 'tr',
             html_tag( 'td', '<b>' . _("Remote POP server Fetching Mail") . '</b>', 'center', $color[0] )
                 ) ,
         'center', '', 'width="95%" cols="1"' );

// get $server_to_fetch from globals, if not set display a choice to the user
if (! sqgetGlobalVar('server_to_fetch', $server_to_fetch, SQ_POST) ) {

    echo '<font size=-5><br></font>' .
        "<form action=\"$PHP_SELF\" method=\"post\" target=\"_self\">" .
        html_tag( 'table', '', 'center', '', 'width="70%" cols="2"' ) .
        html_tag( 'tr' ) .
        html_tag( 'td', _("Select Server:") . ' &nbsp; &nbsp;', 'right' ) .
        html_tag( 'td', '', 'left' ) .
        '<select name="server_to_fetch" size="1">' .
        '<option value="all" selected>..' . _("All") . "...\n";
    for ($i=0;$i<$mailfetch_server_number;$i++) {
        echo "<option value=\"$i\">" .
            sm_encode_html_special_chars((($mailfetch_alias_[$i]=='')?$mailfetch_server_[$i]:$mailfetch_alias_[$i])) .
            '</option>' . "\n";
    }
    echo            '</select>' .
        '</td>' .
        '</tr>';

    //if password not set, ask for it
    for ($i=0;$i<$mailfetch_server_number;$i++) {
        if ($mailfetch_pass_[$i]=='') {
            echo html_tag( 'tr',
                     html_tag( 'td', _("Password for") . ' <b>' .
                         sm_encode_html_special_chars((($mailfetch_alias_[$i]=='')?$mailfetch_server_[$i]:$mailfetch_alias_[$i])) .
                         '</b>: &nbsp; &nbsp; ',
                         'right' ) .
                     html_tag( 'td', '<input type="password" name="pass_' . $i . '">', 'left' )
                           );
        }
    }
    echo html_tag( 'tr',
             html_tag( 'td', '&nbsp;' ) .
             html_tag( 'td', '<input type=submit name=submit_mailfetch value="' . _("Fetch Mail"). '">', 'left' )
             ) .
        '</table></form>';
    exit();
}

if ( $server_to_fetch == 'all' ) {
    $i_start = 0;
    $i_stop = $mailfetch_server_number;
} else {
    $i_start = $server_to_fetch;
    $i_stop = $i_start+1;
}

for ($i_loop=$i_start;$i_loop<$i_stop;$i_loop++) {
    $mailfetch_server=$mailfetch_server_[$i_loop];
    $mailfetch_port=$mailfetch_port_[$i_loop];
    $mailfetch_user=$mailfetch_user_[$i_loop];
    if ($mailfetch_pass_[$i_loop] == '') {
        sqgetGlobalVar("pass_$i_loop", $mailfetch_pass, SQ_POST);
    } else {
        $mailfetch_pass = $mailfetch_pass_[$i_loop];
    }
    $mailfetch_lmos=$mailfetch_lmos_[$i_loop];
    $mailfetch_login=$mailfetch_login_[$i_loop];
    $mailfetch_uidl=$mailfetch_uidl_[$i_loop];
    $mailfetch_subfolder=$mailfetch_subfolder_[$i_loop];

    $pop3 = new POP3($mailfetch_server, 60);

    echo '<br>' .
        html_tag( 'table',
            html_tag( 'tr',
                html_tag( 'td', '<b>' . _("Fetching from ") .
                    sm_encode_html_special_chars((($mailfetch_alias_[$i_loop] == '')?$mailfetch_server:$mailfetch_alias_[$i_loop])) .
                    '</b>',
                'center' ) ,
            '', $color[9] ) ,
        '', '', 'width="90%"' );

    flush();

    if (!$pop3->connect($mailfetch_server,$mailfetch_port)) {
        Mail_Fetch_Status(_("Oops, ") . $pop3->ERROR );
        continue;
    }

    Mail_Fetch_Status(_("Opening IMAP server"));
    $imap_stream = sqimap_login($username, $key, $imapServerAddress, $imapPort, 10, $imap_stream_options);

    // check if destination folder is not set, is not subscribed and is not \noselect folder
    if($mailfetch_subfolder == '' || 
       ! mail_fetch_check_folder($imap_stream,$mailfetch_subfolder)) {
        $mailfetch_subfolder = 'INBOX';
    }

    Mail_Fetch_Status(_("Opening POP server"));
    $Count = $pop3->login($mailfetch_user, $mailfetch_pass);
    if (($Count == false || $Count == -1) && $pop3->ERROR != '') {
        Mail_Fetch_Status(_("Login Failed:") . ' ' . $pop3->ERROR );
        continue;
    }

    //   register_shutdown_function($pop3->quit());

    $msglist = $pop3->uidl();

    $i = 1;
    for ($j = 1; $j < sizeof($msglist); $j++) {
        if ($msglist["$j"] == $mailfetch_uidl) {
            $i = $j+1;
            break;
        }
    }

    if ($Count < $i) {
        Mail_Fetch_Status(_("Login OK: No new messages"));
        $pop3->quit();
        continue;
    }
    if ($Count == 0) {
        Mail_Fetch_Status(_("Login OK: Inbox EMPTY"));
        $pop3->quit();
        continue;
    } else {
        $newmsgcount = $Count - $i + 1;
        Mail_Fetch_Status(sprintf(_("Login OK: Inbox contains %s messages"), $newmsgcount));
    }

    Mail_Fetch_Status(_("Fetching UIDL..."));
    // Faster to get them all at once
    $mailfetch_uidl = $pop3->uidl();

    if (! is_array($mailfetch_uidl) && $mailfetch_lmos == 'on')
        Mail_Fetch_Status(_("Server does not support UIDL."));

    if ($mailfetch_lmos == 'on') {
        Mail_Fetch_Status(_("Leaving messages on server..."));
    } else {
        Mail_Fetch_Status(_("Deleting messages from server..."));
    }

    for (; $i <= $Count; $i++) {
        Mail_Fetch_Status(_("Fetching message ") . "$i" );
        if (!ini_get('safe_mode'))
            set_time_limit(20); // 20 seconds per message max
        $Message = "";
        $MessArray = $pop3->get($i);

        while ( (!$MessArray) or (gettype($MessArray) != "array")) {
            Mail_Fetch_Status(_("Oops, ") . $pop3->ERROR);
            // re-connect pop3
            Mail_Fetch_Status(_("Server error. Disconnect"));
            $pop3->quit();
            Mail_Fetch_Status(_("Reconnect from dead connection"));
            if (!$pop3->connect($mailfetch_server)) {
                Mail_Fetch_Status(_("Oops, ") . $pop3->ERROR );
                Mail_Fetch_Status(_("Saving UIDL"));
                setPref($data_dir,$username,"mailfetch_uidl_$i_loop", $mailfetch_uidl[$i-1]);

                continue;
            }
            $Count = $pop3->login($mailfetch_user, $mailfetch_pass);
            if (($Count == false || $Count == -1) && $pop3->ERROR != '') {
                Mail_Fetch_Status(_("Login Failed:") . ' ' . sm_encode_html_special_chars($pop3->ERROR) );
                Mail_Fetch_Status(_("Saving UIDL"));
                setPref($data_dir,$username,"mailfetch_uidl_$i_loop", $mailfetch_uidl[$i-1]);

                continue;
            }
            Mail_Fetch_Status(_("Refetching message ") . "$i" );
            $MessArray = $pop3->get($i);

        } // end while

        foreach ($MessArray as $lineNum => $line) {
            $Message .= $line;
        }

        fputs($imap_stream, "A3$i APPEND \"$mailfetch_subfolder\" {" . strlen($Message) . "}\r\n");
        $Line = fgets($imap_stream, 1024);
        if (substr($Line, 0, 1) == '+') {
            fputs($imap_stream, $Message);
            fputs($imap_stream, "\r\n");
            sqimap_read_data($imap_stream, "A3$i", false, $response, $message);
            if ( $response <> 'OK' ) {
                Mail_Fetch_Status(_("Error Appending Message!")." ".$message );
                Mail_Fetch_Status(_("Closing POP"));
                $pop3->quit();
                Mail_Fetch_Status(_("Logging out from IMAP"));
                sqimap_logout($imap_stream);

                Mail_Fetch_Status(_("Saving UIDL"));
                setPref($data_dir,$username,"mailfetch_uidl_$i_loop", $mailfetch_uidl[$i-1]);
                exit;
            } else {
                Mail_Fetch_Status(_("Message appended to mailbox"));
            }

            if ($mailfetch_lmos != 'on') {
                if( $pop3->delete($i) ) {
                    Mail_Fetch_Status(sprintf(_("Message %d deleted from remote server!"), $i));
                } else {
                    Mail_Fetch_Status(_("Delete failed:") . sm_encode_html_special_chars($pop3->ERROR) );
                }
            }
        } else {
            echo "$Line";
            Mail_Fetch_Status(_("Error Appending Message!"));
            Mail_Fetch_Status(_("Closing POP"));
            $pop3->quit();
            Mail_Fetch_Status(_("Logging out from IMAP"));
            sqimap_logout($imap_stream);

            // not gurantee corect!
            Mail_Fetch_Status(_("Saving UIDL"));
            setPref($data_dir,$username,"mailfetch_uidl_$i_loop", $mailfetch_uidl[$i-1]);
            exit;
        }
    }

    Mail_Fetch_Status(_("Closing POP"));
    $pop3->quit();
    Mail_Fetch_Status(_("Logging out from IMAP"));
    sqimap_logout($imap_stream);
    if (is_array($mailfetch_uidl)) {
        Mail_Fetch_Status(_("Saving UIDL"));
        setPref($data_dir,$username,"mailfetch_uidl_$i_loop", array_pop($mailfetch_uidl));
    }

    Mail_Fetch_Status(_("Done"));
}
?>
</center>
</body>
</html>
