/**
* Return service url for ticket based authentication.
* $op Option for refreshing ticket or not.
* @param string $username The username to use for user authentication.
*/
function alfresco_utils_get_wc_url($url, $op = 'norefresh', $username = '')
{
global $CFG;
$endpoint = alfresco_base_url();
$ticket = alfresco_utils_get_ticket($op, $username);
if (false === strstr($url, '?')) {
return $endpoint . $url . '?alf_ticket=' . $ticket;
} else {
return $endpoint . str_replace('?', '?alf_ticket=' . $ticket . '&', $url);
}
}
function get_image_size($uuid)
{
global $repo;
/// Check if file exists
if (!($finfo = $repo->get_info($uuid))) {
return false;
} else {
/// Get the mime type so it really an image.
if (mimeinfo("icon", $finfo->filename) != "image.gif") {
return false;
} else {
$array_size = getimagesize(str_replace($finfo->title, rawurlencode($finfo->title), $finfo->fileurl) . '?alf_ticket=' . alfresco_utils_get_ticket());
return $array_size;
}
}
//unset($filepath, $array_size);
}
/**
* Return a file from the repository server.
*
* @uses $CFG
* @uses $USER
* @param string $uuid Unique identifier for a node.
* @param string $localfile A full system path (with filename) to download the contents locally.
* @param bool $return Set to true to just return the file content (optional).
* @param bool $process Whether to process text-based content for relative URLs for converting.
* @return mixed|bool Returns the file to the browser (with appropriate MIME headers) or False on failure.
*/
function read_file($uuid, $localfile = '', $return = false, $process = true)
{
global $CFG, $USER;
if (ALFRESCO_DEBUG_TRACE) {
mtrace('read_file(' . $uuid . ')');
}
$this->errormsg = '';
$downloading = false;
if (!empty($localfile)) {
if (!($localfh = fopen($localfile, 'w'))) {
return false;
}
$downloading = true;
}
$node = $this->get_info($uuid);
// if (isloggedin()) {
// $username = $USER->username;
// } else {
// $username = '';
// }
$username = '';
/// Check for a non-text file type to just pass through to the end user.
$mimetype = !empty($node->filemimetype) ? $node->filemimetype : '';
$url = str_replace($node->filename, urlencode($node->filename), $node->fileurl) . '?alf_ticket=' . alfresco_utils_get_ticket('refresh', $username);
/// IE compatibiltiy HACK!
if (!$downloading && strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE') !== false && ini_get('zlib.output_compression') == 'On') {
ini_set('zlib.output_compression', 'Off');
}
$processtypes = array('application/x-javascript', 'application/xhtml+xml', 'text/css');
/// Don't process non-text and "known" filetypes for relative links.
if (strpos($mimetype, 'text') !== 0 && !in_array($mimetype, $processtypes) || !$process) {
if (!$downloading && !$return && ($headers = get_headers($url))) {
foreach ($headers as $header) {
if (0 === strpos(strtolower($header), 'http') || 0 === strpos(strtolower($header), 'server') || 0 === strpos(strtolower($header), 'set-cookie') || 0 === strpos(strtolower($header), 'connection') || 0 === strpos(strtolower($header), 'content-length')) {
continue;
}
header($header);
}
}
if (!$downloading && !$return) {
/// Cache this file for the required amount of time.
if (!empty($CFG->repository_alfresco_cachetime)) {
$age = $CFG->repository_alfresco_cachetime;
} else {
/// The "No" caching option has a value of zero, so
/// this handles the default (not set), as well as selecting "No"
$age = 0;
}
header('Cache-Control: max-age=' . $age);
header('Expires: ' . gmdate('D, d M Y H:i:s', time() + $age) . ' GMT');
header('Pragma: ');
header('Content-Disposition: filename="' . $node->filename . '"');
}
/// Close session - not needed anymore.
if (!$return) {
@session_write_close();
}
/// Read the file contents in chunks and output directly.
if ($fh = fopen($url, 'rb')) {
if ($return) {
$buffer = '';
}
if (!$downloading) {
while (!feof($fh)) {
if (($buf = fread($fh, 8192)) === false) {
return false;
}
if (!$return) {
echo $buf;
} else {
$buffer .= $buf;
}
}
} else {
/// Downloading locally, write the file contents to the local file handler.
$byteswritten = stream_copy_to_stream($fh, $localfh);
return $byteswritten == $node->filesize;
}
fclose($fh);
} else {
return false;
}
if ($return) {
return $buffer;
}
exit;
}
/// Process the file, re-writing relative links to direct URLs which will
$filecontents = '';
/// Read the file contents in chunks and output store for processing.
if ($fh = fopen($url, 'r')) {
while (!feof($fh)) {
if (($filecontents .= fread($fh, 8192)) === false) {
return false;
}
}
fclose($fh);
} else {
return false;
}
$this->fix_links($filecontents, $this->get_file_path($node->uuid));
/// We've asked for the file contents to just be returned, so do that now.
if ($return) {
return $filecontents;
}
/// Downloading locally, write the file contents to the local file handler.
if ($downloading) {
if (($byteswritten = fwrite($localfh, $filecontents, strlen($filecontents))) === false) {
return false;
} else {
return true;
}
}
if ($headers = get_headers($url)) {
foreach ($headers as $header) {
if (0 === strpos($header, 'HTTP') || 0 === strpos($header, 'Server') || 0 === strpos($header, 'Set-Cookie') || 0 === strpos($header, 'Connection')) {
continue;
}
header($header);
}
}
/// Cache this file for the required amount of time.
if (!empty($CFG->repository_alfresco_cachetime)) {
$age = $CFG->repository_alfresco_cachetime;
} else {
/// The "No" caching option has a value of zero, so
/// this handles the default (not set), as well as selecting "No"
$age = 0;
}
header('Cache-Control: max-age=' . $age);
header('Expires: ' . gmdate('D, d M Y H:i:s', time() + $age) . ' GMT');
header('Pragma: ');
header('Content-Disposition: filename="' . $node->filename . '"');
/// Close session - not needed anymore.
@session_write_close();
echo $filecontents;
exit;
}
