depollueur/src/Jirafeau/a.php

<?php
/*
 *  Kaz addon (see https://git.kaz.bzh/KAZ/depollueur for information)
 *  create un archive for a set of file or update file deadline

 a.php?u=month&h=HHHHHHHH => deadline
 a.php?g=l~k => zip
 a.php?s=mel@domain.org => send status e-mail
*/
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\SMTP;
use PHPMailer\PHPMailer\Exception;
require 'vendor/autoload.php';

define ('JIRAFEAU_ROOT', dirname (__FILE__) . '/');

require (JIRAFEAU_ROOT . 'lib/settings.php');
require (JIRAFEAU_ROOT . 'lib/functions.php');
require (JIRAFEAU_ROOT . 'lib/lang.php');

define ('A_GET', 'g');
define ('A_HASH', 'h');
define ('A_SENDER', 's');
define ('A_UPDATE', 'u');
define ('A_OPEN_TOKEN', 'o');
define ('E_BAD_SENDER_NAME', 'm&egrave;l incorrect : ');
define ('E_BAD_ARCHIVE_NAME', 'bad archive name format : ');
define ('E_CREATE_ZIP', "Impossible de cr&eacute;er l'archive.");
define ('E_OPEN_ZIP', "Impossible d'ouvrir l'archive.");
define ('M_BAD_KEY', "Mauvaise clef pour ");
define ('M_FILE', " fichier.");
define ('M_FILES', " fichiers.");
define ('M_FILES_NOT_FOUND', " fichiers sont expir&eacute;s.");
define ('M_FILES_RENAMED', " fichiers renomm&eacute;s.");
define ('M_FILE_NOT_FOUND', " fichier est expir&eacute;.");
define ('M_FILE_RENAMED', " fichier renomm&eacute;.");
define ('M_NO_FILENAME', 'SansNom');
define ('M_NO_SENDER', 'kaz');
define ('M_OLD_ATTACHEMENT_DIRNAME', "RappelHistorique");
define ('M_INTRO_FORM', "O&ugrave; sont les derni&egrave;res pi&egrave;ces jointe que j'ai envoy&eacute; ?");
define ('M_SEND_TOKEN', "Vous allez recevoir un lien d'acc&egrave;s temporaire &agrave; vos donn&eacute;es.");
define ('T_BAD_PASW', 'bad_psw');
define ('T_CRYPTED', 'crypted');
define ('T_CRYPT_KEY', 'crypt_key');
define ('T_ENTRIES', 'entries');
define ('T_FILENAME', 'file_name');
define ('T_HASH', 'hash');
define ('T_NEW', 'new');
define ('T_NOT_FOUND', 'not_found');
define ('T_OLD', 'old');
define ('T_RENAME', 'rename');
define ('T_SENDER', 'sender');
define ('T_TIMESTAMP', 'timestamp');
define ('T_WARNING_FILENAME', "-Avertissement.txt");
define ('T_ZIP_EXT', ".zip");


/* Operations may take a long time.
 * Be sure PHP's safe mode is off.
 */
@set_time_limit (0);
/* Remove errors. */
@error_reporting (0);

$do_update = false;
if (isset ($_REQUEST[A_UPDATE]) && !empty ($_REQUEST[A_UPDATE])) {
    $do_update = true;
}

$do_download = false;
if (isset ($_REQUEST[A_GET]) && !empty ($_REQUEST[A_GET])) {
    $do_download = true;
}

// ========================================
function return_error ($msg) {
    require (JIRAFEAU_ROOT.'lib/template/header.php');
    echo '<div class="error"><p>' . $msg . '</p></div>';
    require (JIRAFEAU_ROOT.'lib/template/footer.php');
    exit;
}

// ========================================
/** Update link 
 * @param $link the link's name (hash)
 * @param $update_period the periode (i.e in : "month")
 */
function jirafeau_update_link ($link_name, $link, $update_period) {
    $time_max = $link ['time'];
    $time_up = time () + $update_period;
    $time_more = $time_up + JIRAFEAU_HOUR;
    if ($time_max < 0 || $time_up < $time_max)
        return $time_max;
    $link ['time'] = $time_more;
    $link_tmp_name =  VAR_LINKS . $link ['hash'] . rand (0, 10000) . '.tmp';
    $handle = fopen ($link_tmp_name, 'w');
    fwrite ($handle,
            $link ['file_name'] .NL. $link ['mime_type'] .NL. $link ['file_size'] .NL. $link ['key'] .NL. $link ['time'] .NL.
            $link ['hash'] .NL. $link ['onetime'] .' '.JIRAFEAU_MONTH . ' '. JIRAFEAU_DAY .NL. $link ['upload_date'] .NL.
            $link ['ip'] .NL. $link ['link_code'] .NL. $link ['crypted']);
    fclose ($handle);
    $link_file = VAR_LINKS . s2p ("$link_name") . $link_name;
    rename ($link_tmp_name, $link_file);
    return $time_more;
}

// ========================================
function read_archive_info ($link) {
    $p = s2p ($link ['hash']);
    // read archive info
    $result=[];
    foreach (file (VAR_FILES . $p . $link ['hash']) as $line) {
        switch (true) {
        case preg_match ("/^\s*src:\s*(([a-z0-9\+_\-]+)(\.[a-z0-9\+_\-]+)*@([a-z0-9\-]+\.)+[a-z]{2,6})\s*$/i", $line, $matches):
            $result[T_SENDER] = $matches[1];
            break;
        case preg_match ("/^\s*time:\s*(\d{4}([:-]\d{2}){5})\s*$/i", $line, $matches):
            $result[T_TIMESTAMP] = $matches[1];
            break;
        case preg_match ("/^\s*old:\s*([0-9a-zA-Z_-]+)\s+([0-9a-zA-Z_-]+)\s*$/", $line, $matches):
            $result[T_OLD][] = [$matches[1], $matches[2]];
            break;
        case preg_match ("/^\s*new:\s*([0-9a-zA-Z_-]+)\s+([0-9a-zA-Z_-]+)\s*$/", $line, $matches):
            $result[T_NEW][] = [$matches[1], $matches[2]];
            break;
        default:
            break;
        }
    }
    return $result;
}

// ========================================
function send_email($receiver, $receiver_name,  $subject, $body_string){
    // SERVER SETTINGS
    $mail = new PHPMailer (true);
    $mail->isSMTP ();
    $mail->Host       = 'smtp';
    $mail->SMTPAuth   = false;
    $mail->SMTPAutoTLS = false;
    $mail->SMTPSecure = "none";
    $mail->Port       = 25;

    //Recipients (change this for every project)
    $mail->setFrom ('no-reply@kaz.local', '');
    $mail->addAddress ($receiver, $receiver_name);

    //Content
    $mail->isHTML (false);
    $mail->Subject = $subject;
    $mail->Body    = $body_string;

    //send the message, check for errors
    if (!$mail->send ()) {
        //echo 'Mailer Error: ' . $mail->ErrorInfo;
        return 0;
    } else {
        //echo 'Message sent!';
        return 1;
    }
}

// ========================================
if ($do_update) {
    $update_period = JIRAFEAU_MONTH;
    switch ($_REQUEST[A_UPDATE]) {
    case 'minute':
        $update_period = JIRAFEAU_MINUTE;
        break;
    case 'hour':
        $update_period = JIRAFEAU_HOUR;
        break;
    case 'day':
        $update_period = JIRAFEAU_DAY;
        break;
    case 'week':
        $update_period = JIRAFEAU_WEEK;
        break;
    case 'month':
        $update_period = JIRAFEAU_MONTH;
        break;
    case 'quarter':
        $update_period = JIRAFEAU_QUARTER;
        break;
    case 'year':
        $update_period = JIRAFEAU_YEAR;
        break;
    default:
        return_error (t ('ERR_OCC') . ' (update_period)');
    }
    $link_name = $_REQUEST[A_HASH];
    if (!preg_match ('/[0-9a-zA-Z_-]+$/', $link_name))
        return_error (t ('FILE_404'));
    $link = jirafeau_get_link ($link_name);
    if (count ($link) == 0)
        return_error (t ('FILE_404'));
    $time = jirafeau_update_link ($link_name, $link, $update_period);
    $content = '' . $time . NL;
    header ('HTTP/1.0 200 OK');
    header ('Content-Length: ' . strlen ($content));
    header ('Content-Type: text/plain');
    echo $content;
    exit;
}

// ========================================
if ($do_download) {
    // check archive exist
    $couple = explode ("~", $_REQUEST[A_GET], 2);
    if (count ($couple) == 0)
        return_error (E_BAD_ARCHIVE_NAME.$_REQUEST [A_GET]);
    $link_name = $couple [0];
    if (!$link_name || !preg_match ('/[0-9a-zA-Z_-]+$/', $link_name))
        return_error (E_BAD_ARCHIVE_NAME.$_REQUEST [A_GET]);
    $crypt_key = count ($couple) == 2 ? $couple [1] : "";
    $link = jirafeau_get_link ($link_name);
    if (count ($link) == 0)
        return_error (t ('FILE_404'));
    $key = $link ['key'];
    if ($key && (empty ($crypt_key) || $key != $crypt_key))
        return_error (t ('BAD_PSW'));

    $archive_info = read_archive_info ($link);

    // check entries
    $archive_content = [];
    $modif = false;
    $single_name = [];
    foreach ([T_OLD, T_NEW] as $cat)
        if (isset ($archive_info[$cat]))
            foreach ($archive_info[$cat] as [$link_name, $crypt_key]) {
                $link = jirafeau_get_link ($link_name);
                if (count ($link) == 0) {
                    if (isset ($archive_content[T_NOT_FOUND]))
                        ++$archive_content[T_NOT_FOUND];
                    else
                        $archive_content[T_NOT_FOUND] = 1;
                    $modif = true;
                    continue;
                }
                $key = $link ['key'];
                if ($key && (empty ($crypt_key) || $key != $crypt_key)) {
                    if (isset ($archive_content[T_BAD_PASW]))
                        ++$archive_content[T_BAD_PASW];
                    else
                        $archive_content[T_BAD_PASW] = 1;
                    $modif = true;
                    continue;
                }
                $src_name = $dst_name = ($link ['file_name'] ? $link ['file_name'] : M_NO_FILENAME);
                if (in_array ($src_name, $single_name))
                    for ($i = 0; $i < 10000; ++$i) {
                        $dst_name = sprintf ("%s-%2d", $src_name, $i);
                        if (!in_array ($dst_name, $single_name)) {
                            if (isset ($archive_content[T_RENAME]))
                                ++$archive_content[T_RENAME];
                            else
                                $archive_content[T_RENAME] = 1;    
                            $modif = true;
                            break;
                        }
                    }
                $single_name [] = $dst_name;
                $archive_content[$cat][T_ENTRIES][] = [T_HASH => $link ['hash'], T_FILENAME => $dst_name, T_CRYPT_KEY => $crypt_key, T_CRYPTED => $link['crypted']];
            }

    // build zip
    $dirname = (isset ($archive_info[T_SENDER]) && !empty ($archive_info[T_SENDER]))
             ? $archive_info[T_SENDER] : M_NO_SENDER;
    $dirname .= "-" . (isset ($archive_info[T_TIMESTAMP]) && !empty ($archive_info[T_TIMESTAMP]))
             ? $archive_info[T_TIMESTAMP] : date ("Ymd-His");
    $tmpFileName = tempnam (sys_get_temp_dir (), $dirname."-");
    $zip = new ZipArchive;
    if (!$zip)
        return_error (E_CREATE_ZIP);
    if ($zip->open ($tmpFileName.T_ZIP_EXT, ZipArchive::CREATE) !== TRUE)
        return_error (E_OPEN_ZIP);

    // create info XXX
    if ($modif) {
        $info = '';
        if (isset ($archive_info[T_NOT_FOUND]))
            $info .= $archive_info[T_NOT_FOUND]. ($archive_info[T_NOT_FOUND] ? M_FILE_NOT_FOUND : M_FILES_NOT_FOUND).NL;
        if (isset ($archive_info[T_BAD_PASW]))
            $info .= M_BAD_KEY. $archive_info[T_BAD_PASW]. ($archive_info[T_BAD_PASW] ? M_FILE : M_FILES).NL;
        if (isset ($archive_info[$cat][T_RENAME]))
            $info .= $archive_info[$cat][T_RENAME]. ($archive_info[$cat][T_RENAME] ? M_FILE_RENAMED : M_FILES_RENAMED).NL;
        $zip->addFromString ($dirname.T_WARNING_FILENAME, $info);
    }
    foreach ([T_OLD, T_NEW] as $cat)
        if (isset ($archive_info [$cat])) {
            $subdir = $dirname . ($cat == T_NEW ? "" : "/".M_OLD_ATTACHEMENT_DIRNAME);
            foreach ($archive_content [$cat][T_ENTRIES] as $entry) {
                $p = s2p ($entry [T_HASH]);
                if ($entry [T_CRYPTED]) {
                    $m = mcrypt_module_open ('rijndael-256', '', 'ofb', '');
                    $md5_key = md5 ($entry [T_CRYPT_KEY]);
                    $iv = jirafeau_crypt_create_iv ($md5_key, mcrypt_enc_get_iv_size ($m));
                    mcrypt_generic_init ($m, $md5_key, $iv);
                    $r = fopen (VAR_FILES . $p . $entry [T_HASH], 'r');
                    $content = "";
                    while (!feof ($r)) {
                        $dec = mdecrypt_generic ($m, fread ($r, 1024));
                        $content .= $dec;
                        ob_flush ();
                    }
                    fclose ($r);
                    $zip->addFromString ($subdir."/".$entry [T_FILENAME], $content);
                    mcrypt_generic_deinit ($m);
                    mcrypt_module_close ($m);
                    continue;
                }
                $zip->addFile (VAR_FILES.$p.$entry [T_HASH], $subdir."/".$entry [T_FILENAME]);
            }
        }
    $zip->close ();

    
    if (!is_file ($tmpFileName.T_ZIP_EXT,))
        return_error (E_OPEN_ZIP);

    if (false) {
        // log
        $content = print_r ($archive_info, 1);
        $content .= print_r ($archive_content, 1);

        header ('HTTP/1.0 200 OK');
        header ('Content-Length: ' . strlen ($content));
        header ('Content-Type: text/plain');
        echo $content;
        exit;
    }

    header ("Content-Type: application/zip");
    header ('Content-Disposition: filename="'.$dirname.'.zip"');
    $r = fopen ($tmpFileName.".zip", 'r');
    while (!feof ($r)) {
        print fread ($r, 1024);
        ob_flush ();
    }
    fclose ($r);

    unlink ($tmpFileName.".zip");
    unlink ($tmpFileName);
    exit;    
}

// ========================================
// XXX form send
$content = "TODO send form".NL;

$sender = '';
if (isset ($_REQUEST [A_SENDER]) && !empty ($_REQUEST [A_SENDER])) {
    $sender=$_REQUEST [A_SENDER];
    if (!preg_match ("/^([a-z0-9\+_\-]+)(\.[a-z0-9\+_\-]+)*@([a-z0-9\-]+\.)+[a-z]{2,6}$/ix", $sender))
        return_error (E_BAD_SENDER_NAME.$sender);
    $content = "${sender}".NL;
}

if (!$sender) {
    require (JIRAFEAU_ROOT . 'lib/template/header.php');
    echo M_INTRO_FORM;
    ?>
    <Form method="post" class="form login">
    <fieldset>
    <table>
    <tr>
    <td class = "label"><label for = "enter_password"><?php echo "votre m&egrave;l" . ':'; ?></label>
    </td>
    </tr>
    <tr>
    <td class = "field"><input type = "text" name = "s" id = "s" size = "40" />
    </td>
    </tr>
    <tr class = "nav">
    <td class = "nav next">
    <input type = "submit" name = "key" value ="<?php echo t ('LOGIN'); ?>" />
    </td>
    </tr>
    </table>
    </fieldset>
    </form>
<?php
    require (JIRAFEAU_ROOT.'lib/template/footer.php');
    exit;
}

$open_service = '';
if (!isset ($_REQUEST [A_OPEN_TOKEN]) || empty ($_REQUEST [A_OPEN_TOKEN]))
    $open_service=$_REQUEST [A_OPEN_TOKEN];

if (!isset ($open_service)) {
    // send e-mail
    //preg_match ("%^http.*//depot.([^/]+)/?$%i", $cfg ['web_root'], $matches);
    // $domain = $matches[1];
    // $to      = $sender;
    // $subject = 'Lien de consultation des envoies de pi&egrave;ces jointes';
    // $message = 'Bonjour !';
    // $headers =
    //          'From: no-reply@'.$domain.'' . "\r\n" .
    //          'X-Mailer: PHP/' . phpversion();
    // mail ($to, $subject, $message, $headers);

    $result = send_email ($sender, "",  "Lien de consultation des envoies de pi&egrave;ces jointes", "Bonjour!");

    require (JIRAFEAU_ROOT . 'lib/template/header.php');
    echo M_SEND_TOKEN;
    require (JIRAFEAU_ROOT.'lib/template/footer.php');
    exit;
}

$found = [];
$stack = array (VAR_LINKS);
while ( ($d = array_shift ($stack)) && $d != null) {
    $dir = scandir ($d);
    foreach ($dir as $node) {
        if (strcmp ($node, '.') == 0 || strcmp ($node, '..') == 0 ||
            preg_match ('/\.tmp/i', "$node")) {
            continue;
        }
        if (is_dir ($d . $node)) {
            /* Push new found directory. */
            $stack[] = $d . $node . '/';
        } elseif (is_file ($d . $node)) {
            /* Read link informations. */
            $l = jirafeau_get_link ($node);
            if (!count ($l)) {
                continue;
            }
            if (!@preg_match ("/archive_content/", jirafeau_escape ($l ['file_name'])) || jirafeau_escape ($l ['mime_type']) != "text/plain") {
                continue;
            }
            $archive_info = read_archive_info ($l);
            if ($sender != $archive_info [T_SENDER])
                continue;
            if (isset ($archive_info [T_NEW]))
                foreach ($archive_info [T_NEW] as [$link_name, $crypt_key])
                    $found [$link_name] = $crypt_key;
        }
    }
}
foreach ($found as $link_name => $crypt_key)
    $content .= $link_name . " - " . $crypt_key . NL;

// XXX find
// add link : name / time / download / delete
// sort by name ?

// $tmpFileName = tempnam (sys_get_temp_dir (), $dirname."-");
// $fd = fopen ($tmpFileName, "w");
// if (!$fd)
//     return_error ("Unable to open tmp file!");
// fwrite ($fd, $content);
// fclose ($fd);

header ('HTTP/1.0 200 OK');
header ('Content-Length: ' . strlen ($content));
header ('Content-Type: text/plain');
echo $content;
?>