Beispiel #1
0
function processPasteFetch($pasteid)
{
    if (preg_match('/\\A[a-f\\d]{16}\\z/', $pasteid)) {
        // Is this a valid paste identifier ?
        $filename = dataid2path($pasteid) . $pasteid;
        if (!is_file($filename)) {
            // Check that paste exists.
            return array('', 'Paste does not exist!', '');
        }
    } else {
        return array('', 'Invalid data!', '');
    }
    // Get the paste itself.
    $paste = json_decode(file_get_contents($filename));
    $messages = array($paste);
    // The paste itself is the first in the list of encrypted messages.
    $CIPHERDATA = json_encode($messages);
    return array($CIPHERDATA, '', '');
}
Beispiel #2
0
function processPasteFetch($pasteid)
{
    if (preg_match('/\\A[a-f\\d]{16}\\z/', $pasteid)) {
        $filename = dataid2path($pasteid) . $pasteid;
        if (!is_file($filename)) {
            return array('', 'Paste does not exist, has expired or has been deleted.', '');
        }
    }
    // Get the paste itself.
    $paste = json_decode(file_get_contents($filename));
    // See if paste has expired.
    if (isset($paste->meta->expire_date) && $paste->meta->expire_date < time()) {
        deletePaste($pasteid);
        // Delete the paste
        return array('', 'Paste does not exist, has expired or has been deleted.', '');
    }
    // We kindly provide the remaining time before expiration (in seconds)
    if (property_exists($paste->meta, 'expire_date')) {
        $paste->meta->remaining_time = $paste->meta->expire_date - time();
    }
    $messages = array($paste);
    // The paste itself is the first in the list of encrypted messages.
    // If it's a discussion, get all comments.
    if (property_exists($paste->meta, 'opendiscussion') && $paste->meta->opendiscussion) {
        $comments = array();
        $datadir = dataid2discussionpath($pasteid);
        if (!is_dir($datadir)) {
            mkdir($datadir, $mode = 0705, $recursive = true);
        }
        $dhandle = opendir($datadir);
        while (false !== ($filename = readdir($dhandle))) {
            if (is_file($datadir . $filename)) {
                $comment = json_decode(file_get_contents($datadir . $filename));
                // Filename is in the form pasteid.commentid.parentid:
                // - pasteid is the paste this reply belongs to.
                // - commentid is the comment identifier itself.
                // - parentid is the comment this comment replies to (It can be pasteid)
                $items = explode('.', $filename);
                $comment->meta->commentid = $items[1];
                // Add some meta information not contained in file.
                $comment->meta->parentid = $items[2];
                $comments[$comment->meta->postdate] = $comment;
                // Store in table
            }
        }
        closedir($dhandle);
        ksort($comments);
        // Sort comments by date, oldest first.
        $messages = array_merge($messages, $comments);
    }
    $CIPHERDATA = json_encode($messages);
    // If the paste was meant to be read only once, delete it.
    if (property_exists($paste->meta, 'burnafterreading') && $paste->meta->burnafterreading) {
        deletePaste($pasteid);
    }
    return array($CIPHERDATA, '', '');
}
Beispiel #3
0
 }
 // Make sure format is correct.
 if (!validSJCL($data)) {
     echo json_encode(array('status' => 1, 'message' => 'Invalid data.'));
     exit;
 }
 // Read additional meta-information.
 $meta = array();
 if ($error) {
     echo json_encode(array('status' => 1, 'message' => 'Invalid data.'));
     exit;
 }
 // We just want a small hash to avoid collisions: Half-MD5 (64 bits) will do the trick.
 $dataid = substr(hash('md5', $data), 0, 16);
 $storage = array('data' => $data);
 $storagedir = dataid2path($dataid);
 if (!is_dir($storagedir)) {
     mkdir($storagedir, $mode = 0705, $recursive = true);
 }
 if (is_file($storagedir . $dataid)) {
     // Oups... improbable collision.
     echo json_encode(array('status' => 1, 'message' => 'Infite improbability drive activated! Try again, please.'));
     exit;
 }
 // New paste
 file_put_contents($storagedir . $dataid, json_encode($storage), LOCK_EX);
 // Generate the "delete" token.
 // The token is the hmac of the pasteid signed with the server salt.
 // The paste can be delete by calling http://myserver.com/zerobin/?pasteid=<pasteid>&deletetoken=<deletetoken>
 $deletetoken = hash_hmac('sha1', $dataid, getServerSalt());
 echo json_encode(array('status' => 0, 'id' => $dataid, 'deletetoken' => $deletetoken));
Beispiel #4
0
function deletePaste($pasteid)
{
    // Delete the paste itself
    unlink(dataid2path($pasteid) . $pasteid);
    // Delete discussion if it exists.
    $discdir = dataid2discussionpath($pasteid);
    if (is_dir($discdir)) {
        // Delete all files in discussion directory
        $dhandle = opendir($discdir);
        while (false !== ($filename = readdir($dhandle))) {
            if (is_file($discdir . $filename)) {
                unlink($discdir . $filename);
            }
        }
        closedir($dhandle);
        // Delete the discussion directory.
        rmdir($discdir);
    }
}