/**
* Opens stream in selected mode.
*
* @see http://php.net/streamwrapper.stream-open
*
* @param string $path
* @param int $mode
* @param int $options
* @param string $opened_path
*
* @return bool
*/
public function stream_open($path, $mode, $options, &$opened_path)
{
$container = $this->getContainerFromContext($path);
$path = $this->stripScheme($path);
$mode = str_split(str_replace('b', '', $mode));
$permissionDeniedError = function () use($path, $options) {
if ($options & STREAM_REPORT_ERRORS) {
trigger_error(sprintf('fopen(%s): failed to open stream: Permission denied', $path), E_USER_WARNING);
}
return false;
};
$appendMode = in_array('a', $mode);
$readMode = in_array('r', $mode);
$writeMode = in_array('w', $mode);
$extended = in_array('+', $mode);
if (!$container->hasFileAt($path)) {
if ($readMode or !$container->hasFileAt(dirname($path))) {
if ($options & STREAM_REPORT_ERRORS) {
trigger_error(sprintf('%s: failed to open stream.', $path), E_USER_WARNING);
}
return false;
}
$parent = $container->fileAt(dirname($path));
$ph = $container->getPermissionHelper($parent);
if (!$ph->isWritable()) {
return $permissionDeniedError();
}
$parent->addFile($container->factory()->getFile(basename($path)));
}
$file = $container->fileAt($path);
if (($extended || $writeMode || $appendMode) && $file instanceof Directory) {
if ($options & STREAM_REPORT_ERRORS) {
trigger_error(sprintf('fopen(%s): failed to open stream: Is a directory', $path), E_USER_WARNING);
}
return false;
}
if ($file instanceof Directory) {
$dir = $file;
$file = $container->factory()->getFile('tmp');
$file->chmod($dir->mode());
$file->chown($dir->user());
$file->chgrp($dir->group());
}
$permissionHelper = $container->getPermissionHelper($file);
$this->currently_opened = new FileHandler();
$this->currently_opened->setFile($file);
if ($extended) {
if (!$permissionHelper->isReadable() or !$permissionHelper->isWritable()) {
return $permissionDeniedError();
}
$this->currently_opened->setReadWriteMode();
} elseif ($readMode) {
if (!$permissionHelper->isReadable()) {
return $permissionDeniedError();
}
$this->currently_opened->setReadOnlyMode();
} else {
// a or w are for write only
if (!$permissionHelper->isWritable()) {
return $permissionDeniedError();
}
$this->currently_opened->setWriteOnlyMode();
}
if ($appendMode) {
$this->currently_opened->seekToEnd();
} elseif ($writeMode) {
$this->currently_opened->truncate();
clearstatcache();
}
return true;
}
