function getTempName($fileName = '', $dir = '')
{
if (empty($dir)) {
$dir = getTempDir();
}
$fileName = basename($fileName);
if (empty($fileName)) {
$fileName = time();
}
$fileName = preg_replace('|\\..*$|', '.tmp', $fileName);
$fileName = $dir . getUniqueFileName($dir, $fileName);
touch($fileName);
return $fileName;
}
/**
* Generate differences between this version and a previous version.
*
* @param array $diffResultArray Results of difference engine.
* @param int $compareVersion Version to compare with
* @return int -1 = version is latest version, can not compare to self
* -2 = diffs disabled
* -3 = versions are the same
* -4 = other error
* +n = generation successful, returns the version number of the previous version
*/
function diff(&$diffResultArray)
{
if (!defined('DIFF_COMMAND')) {
return -2;
}
// diffs disabled
$object = $this->foowd->getObj(array('objectid' => $this->objectid, 'classid' => $this->classid, 'workspaceid' => $this->workspaceid));
if ($this->version == $object->version) {
return -1;
}
// can not compare to self
$fileid = time();
$temp_dir = getConstOrDefault('DIFF_TMPDIR', getTempDir());
$oldFile = $temp_dir . 'foowd_diff_' . $fileid . '-1';
$newFile = $temp_dir . 'foowd_diff_' . $fileid . '-2';
$oldPage = $this->body;
$newPage = $object->body;
ignore_user_abort(TRUE);
// don't halt if aborted during diff
if (!($fp1 = fopen($oldFile, 'w')) || !($fp2 = fopen($newFile, 'w'))) {
$this->foowd->track('msg', 'Could not create temp files in "' . $temp_dir . '" required for diff engine.');
$returnValue = -4;
// other error
} elseif (fwrite($fp1, $oldPage) < 0 || fwrite($fp2, $newPage) < 0) {
$this->foowd->track('msg', 'Could not write to temp files in "' . $temp_dir . '" required for diff engine.');
$returnValue = -4;
// other error
} else {
fclose($fp1);
fclose($fp2);
$this->foowd->track('msg', 'executing external diff engine', '"' . DIFF_COMMAND . '"');
$diffResult = shell_exec(DIFF_COMMAND . ' ' . $oldFile . ' ' . $newFile);
if ($diffResult === FALSE) {
$this->foowd->track('msg', 'Error occured running diff engine "', DIFF_COMMAND, '".');
$returnValue = -4;
// other error
} elseif ($diffResult == FALSE) {
$returnValue = -3;
} else {
$diffResultArray = explode("\n", $diffResult);
$returnValue = $object->version;
}
}
unlink($oldFile);
unlink($newFile);
ignore_user_abort(FALSE);
// all done, it's ok to abort now
$this->foowd->track();
return $returnValue;
}
function createFile($extension, $content)
{
$filename = getTempDir() . $extension;
file_put_contents($filename, $content);
return $filename;
}
} else {
if (!strcmp($action, "chk264")) {
/* ACTION: Simply stalls while checking for 264 file.
* Parms: <monitor><timeout>
* NOTE: This will be called directly by path, so include files
* may not be available */
session_start();
require_once dirname(__FILE__) . "/../includes/functions.php";
if (!isset($_GET['monitor']) || !isset($_GET['timeout'])) {
logXmlErr("Monitor not specified for chk264");
exit;
}
$monitor = validInteger($_GET['monitor']);
$path = getTempDir() . "/" . m3u8fname($monitor);
/* Wait for the second sample to become available */
$tsfile = getTempDir() . "/sample_" . $monitor . "-2.ts";
/* Setup timeout */
$startTime = time();
$timeout = validInteger($_GET['timeout']);
while (!file_exists($path) || !file_exists($tsfile)) {
if (time() > $startTime + $timeout) {
logXmlErr("Timed out waiting for stream to start, exiting...");
kill264proc($monitor);
exit;
}
usleep(10000);
}
logXml("File exists, stream created after " . (time() - $startTime) . " sec");
exit;
} else {
if (!strcmp($action, "feed")) {
/** Erases the M3u8 and TS file names for a given monitor */
function eraseH264Files($monitor)
{
/** NOTE: This command executes an 'rm' command, so $monitor parameter
* should be properly validated before executing */
/* Remove wdir/.m3u8 and wdir/sample_<mon>*.ts */
shell_exec("rm -f " . getTempDir() . "/" . m3u8fname($monitor) . " " . getTempDir() . "/sample_" . $monitor . "*.ts");
}
