Differential D20988 Diff 50015 src/filesystem/Filesystem.php

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src/filesystem/Filesystem.php

Show First 20 Lines • Show All 482 Lines • ▼ Show 20 Lines	public static function readRandomBytes($number_of_bytes) {
// We've failed to find any valid entropy source. Try to fail in the most		// We've failed to find any valid entropy source. Try to fail in the most
// useful way we can, based on the platform.		// useful way we can, based on the platform.

if (phutil_is_windows()) {		if (phutil_is_windows()) {
throw new Exception(		throw new Exception(
pht(		pht(
'%s requires the PHP OpenSSL extension to be installed and enabled '.		'%s requires the PHP OpenSSL extension to be installed and enabled '.
'to access an entropy source. On Windows, this extension is usually '.		'to access an entropy source. On Windows, this extension is usually '.
'installed but not enabled by default. Enable it in your "s".',		'installed but not enabled by default. Enable it in your "php.ini".',
__METHOD__.'()',		__METHOD__.'()'));
'php.ini'));
}		}

throw new Exception(		throw new Exception(
pht(		pht(
'%s requires the PHP OpenSSL extension or access to "%s". Install or '.		'%s requires the PHP OpenSSL extension or access to "%s". Install or '.
'enable the OpenSSL extension, or make sure "%s" is accessible.',		'enable the OpenSSL extension, or make sure "%s" is accessible.',
__METHOD__.'()',		__METHOD__.'()',
'/dev/urandom',		'/dev/urandom',
▲ Show 20 Lines • Show All 443 Lines • ▼ Show 20 Lines	public static function resolvePath($path, $relative_to = null) {
if ($realpath !== false) {		if ($realpath !== false) {
return $realpath;		return $realpath;
}		}


// This won't work if the file doesn't exist or is on an unreadable mount		// This won't work if the file doesn't exist or is on an unreadable mount
// or something crazy like that. Try to resolve a parent so we at least		// or something crazy like that. Try to resolve a parent so we at least
// cover the nonexistent file case.		// cover the nonexistent file case.
$parts = explode(DIRECTORY_SEPARATOR, trim($path, DIRECTORY_SEPARATOR));
while (end($parts) !== false) {		// We're also normalizing path separators to whatever is normal for the
		// environment.

		if (phutil_is_windows()) {
		$parts = trim($path, '/\\');
		$parts = preg_split('([/\\\\])', $parts);

		// Normalize the directory separators in the path. If we find a parent
		// below, we'll overwrite this with a better resolved path.
		$path = str_replace('/', '\\', $path);
		} else {
		$parts = trim($path, '/');
		$parts = explode('/', $parts);
		}

		while ($parts) {
array_pop($parts);		array_pop($parts);
if (phutil_is_windows()) {		if (phutil_is_windows()) {
$attempt = implode(DIRECTORY_SEPARATOR, $parts);		$attempt = implode(DIRECTORY_SEPARATOR, $parts);
} else {		} else {
$attempt = DIRECTORY_SEPARATOR.implode(DIRECTORY_SEPARATOR, $parts);		$attempt = DIRECTORY_SEPARATOR.implode(DIRECTORY_SEPARATOR, $parts);
}		}
$realpath = realpath($attempt);		$realpath = realpath($attempt);
if ($realpath !== false) {		if ($realpath !== false) {
▲ Show 20 Lines • Show All 136 Lines • ▼ Show 20 Lines	if ($real_u) {
$u = $real_u;		$u = $real_u;
}		}
if ($real_v) {		if ($real_v) {
$v = $real_v;		$v = $real_v;
}		}
return ($u == $v);		return ($u == $v);
}		}

		public static function concatenatePaths(array $components) {
		$components = implode($components, DIRECTORY_SEPARATOR);

		// Replace any extra sequences of directory separators with a single
		// separator, so we don't end up with "path//to///thing.c".
		$components = preg_replace(
		'('.preg_quote(DIRECTORY_SEPARATOR).'{2,})',
		DIRECTORY_SEPARATOR,
		$components);

		return $components;
		}

/* -( Assert )------------------------------------------------------------- */		/* -( Assert )------------------------------------------------------------- */


/**		/**
* Assert that something (e.g., a file, directory, or symlink) exists at a		* Assert that something (e.g., a file, directory, or symlink) exists at a
* specified location.		* specified location.
*		*
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