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<?php
/* class pluginbuddy_filesystem
* @author Dustin Bolton
*
* Handles interfacing with the file system.
*/
class pb_backupbuddy_filesystem {
// ********** PUBLIC PROPERTIES **********
// ********** PRIVATE PROPERTIES **********
// ********** FUNCTIONS **********
/* pluginbuddy_filesystem->__construct()
*
* Default constructor.
*
* @return null
*/
function __construct() {
} // End __construct().
/* pb_backupbuddy::$filesystem->mkdir()
*
* mkdir that defaults to recursive behaviour. 99% of the time this is what we want.
*
* @param $pathname string Path to create.
* @param $mode int Default: 0777. See PHP's mkdir() function for details.
* @param $recursive boolean Default: true. See PHP's mkdir() function for details.
* @return boolean Returns TRUE on success or FALSE on failure.
*/
public static function mkdir( $pathname, $mode = 0755, $recursive = true) {
return @mkdir( $pathname, $mode, $recursive );
} // End mkdir().
/* pluginbuddy_filesystem->unlink_recursive()
*
* Unlink a directory recursively. Files all files and directories within. USE WITH CAUTION.
*
* @param string $dir Directory to delete -- all contents within, subdirectories, files, etc will be permanently deleted.
* @return boolean True on success; else false.
*/
function unlink_recursive( $dir ) {
if ( defined( 'PB_DEMO_MODE' ) ) {
return false;
}
if ( !file_exists( $dir ) ) {
return true;
}
if ( !is_dir( $dir ) || is_link( $dir ) ) {
return unlink($dir);
}
foreach ( scandir( $dir ) as $item ) {
if ( $item == '.' || $item == '..' ) {
continue;
}
if ( !$this->unlink_recursive( $dir . "/" . $item ) ) {
@chmod( $dir . "/" . $item, 0777 );
if ( !$this->unlink_recursive( $dir . "/" . $item ) ) {
return false;
}
}
}
return @rmdir($dir);
} // End unlink_recursive().
/**
* pluginbuddy_filesystem->deepglob()
*
* Like the glob() function except walks down into paths to create a full listing of all results in the directory and all subdirectories.
* This is essentially a recursive glob() although it does not use recursion to perform this.
*
* @param string $dir Path to pass to glob and walk through.
* @return array Returns array of all matches found.
*/
function deepglob( $dir ) {
$items = glob( $dir . '/*' );
if ( false === $items ) {
$items = array();
}
for ( $i = 0; $i < count( $items ); $i++ ) {
if ( is_dir( $items[$i] ) ) {
$add = glob( $items[$i] . '/*' );
if ( false === $add ) {
$add = array();
}
$items = array_merge( $items, $add );
}
}
return $items;
} // End deepglob().
function recursive_copy( $src, $dst ) {
//pb_backupbuddy::status( 'details', 'Copying `' . $src . '` to `' . $dst . '`.' );
if ( is_dir( $src ) ) {
pb_backupbuddy::status( 'details', 'Copying directory `' . $src . '` to `' . $dst . '` recursively.' );
@$this->mkdir( $dst, 0777 );
$files = scandir($src);
foreach ( $files as $file ) {
if ($file != "." && $file != "..") {
$this->recursive_copy("$src/$file", "$dst/$file");
}
}
} elseif ( file_exists( $src ) ) {
@copy( $src, $dst ); // Todo: should this need suppression? Media copying was throwing $dst is directory errors.
}
}
// RH added; from Chris?
/*
public function custom_copy( $source, $destination, $args = array() ) {
$default_args = array(
'max_depth' => 100,
'folder_mode' => 0755,
'file_mode' => 0744,
'ignore_files' => array(),
);
$args = array_merge( $default_args, $args );
return $this->_custom_copy( $source, $destination, $args );
} // End custom_copy().
private function _custom_copy( $source, $destination, $args, $depth = 0 ) {
if ( $depth > $args['max_depth'] )
return true;
if ( in_array( basename( $source ), $args[ 'ignore_files' ] ) ) return true;
if ( is_file( $source ) ) {
if ( is_dir( $destination ) || preg_match( '|/$|', $destination ) ) {
$destination = preg_replace( '|/+$|', '', $destination );
$destination = "$destination/" . basename( $source );
}
if ( false === $this->mkdir( dirname( $destination ), $args['folder_mode'] ) )
return false;
if ( false === @copy( $source, $destination ) )
return false;
@chmod( $destination, $args['file_mode'] );
return true;
}
else if ( is_dir( $source ) || preg_match( '|/\*$|', $source ) ) {
if ( preg_match( '|/\*$|', $source ) )
$source = preg_replace( '|/\*$|', '', $source );
else if ( preg_match( '|/$|', $destination ) )
$destination = $destination . basename( $source );
$destination = preg_replace( '|/$|', '', $destination );
$files = array_diff( array_merge( glob( $source . '/.*' ), glob( $source . '/*' ) ), array( $source . '/.', $source . '/..' ) );
if ( false === @mkdir( $destination ) )
return false;
$result = true;
foreach ( (array) $files as $file ) {
if ( false === $this->_custom_copy( $file, "$destination/", $args, $depth + 1 ) )
$result = false;
}
return $result;
}
return false;
} // End _copy().
*/
// todo: document
// $exclusions is never modified so just use PHP's copy on modify default behaviour for memory management.
/* function_name()
*
* function description
* @param array/bool Array of directory paths to exclude. If true then this directory is excluded so no need to check with exclusion directory.
* @return array array( TOTAL_DIRECTORY_SIZE, TOTAL_SIZE_WITH_EXCLUSIONS_TAKEN_INTO_ACCOUNT, OBJECTS_FOUND, OBJECTS_FOUND_WITH_EXCLUSIONS )
*/
function dir_size_map( $dir, $base, $exclusions, &$dir_array ) {
$dir = rtrim( $dir, '/\\' ); // Force no trailing slash.
if( !is_dir( $dir ) ) {
return 0;
}
$ret = 0;
$ret_with_exclusions = 0;
$ret_objects = 0;
$ret_objects_with_exclusions = 0;
$exclusions_result = $exclusions;
$sub = @opendir( $dir );
if ( false === $sub ) { // Cannot access.
pb_backupbuddy::alert( 'Error #568385: Unable to access directory: `' . $dir . '`. Verify proper permissions.', true );
return 0;
} else {
while( $file = readdir( $sub ) ) {
$exclusions_result = $exclusions;
$dir_path = '/' . str_replace( $base, '', $dir . '/' . $file ) . '/'; //str_replace( $base, '', $dir . $file . '/' );
if ( ( $file == '.' ) || ( $file == '..' ) ) {
// Do nothing.
} elseif ( is_dir( $dir . '/' . $file ) ) { // DIRECTORY.
if ( ( $exclusions === true ) || self::in_array_substr( $exclusions, $dir_path, '/' ) ) {
$exclusions_result = true;
}
$result = $this->dir_size_map( $dir . '/' . $file . '/', $base, $exclusions, $dir_array );
$this_size = $result[0];
$this_objects = $result[2];
if ( $exclusions_result === true ) { // If excluding then wipe excluded value.
$this_size_with_exclusions = false;
$this_objects_with_exclusions = 0;
} else {
$this_size_with_exclusions = $result[1]; // / 1048576 );
$this_objects_with_exclusions = $result[3]; // / 1048576 );
}
$dir_array[ $dir_path ] = array( $this_size, $this_size_with_exclusions, $this_objects, $this_objects_with_exclusions ); // $dir_array[ DIRECTORY_PATH ] = DIRECTORY_SIZE;
$ret += $this_size;
$ret_objects += $this_objects;
$ret_with_exclusions += $this_size_with_exclusions;
$ret_objects_with_exclusions += $this_objects_with_exclusions;
unset( $file );
} else { // FILE.
$stats = @stat( $dir . '/' . $file );
if ( is_array( $stats ) ) {
$ret += $stats['size'];
$ret_objects++;
if ( ( $exclusions !== true ) && !in_array( $dir_path, $exclusions ) ) { // Not excluding.
$ret_with_exclusions += $stats['size'];
$ret_objects_with_exclusions++;
}
}
unset( $file );
}
}
closedir( $sub );
unset( $sub );
return array( $ret, $ret_with_exclusions, $ret_objects, $ret_objects_with_exclusions );
}
} // End dir_size_map().
public static function in_array_substr( $haystack, $needle, $trailing = '' ) {
foreach( $haystack as $hay ) {
if ( ( $hay . $trailing ) == substr( $needle . $trailing, 0, strlen( $hay . $trailing ) ) ) {
//echo $needle . '~' . $hay . '<br>';
return true;
}
}
return false;
}
public function exit_code_lookup( $code ) {
switch( (string)$code ) {
case '0':
return 'Command completed & returned normally.';
break;
case '126':
return 'Command invoked cannot execute. Check command has valid permisions and execute capability.';
break;
case '127':
return 'Command not found.';
break;
case '152':
return 'SIGXCPU 152; CPU time limit exceeded.';
break;
case '153':
return 'SIGXFSZ 153; File size limit exceeded. Verify enough free space exists & filesystem max size not exceeded.';
break;
case '158':
return 'SIGXCPU 158; CPU time limit exceeded.';
break;
case '159':
return 'SIGXFSZ 159; File size limit exceeded. Verify enough free space exists & filesystem max size not exceeded.';
break;
default:
return '-No information available for this exit code- See: https://wiki.ncsa.illinois.edu/display/MRDPUB/Batch+Exit+Codes ';
break;
}
}
// Newest to oldest.
function glob_by_date( $pattern ) {
$file_array = array();
$glob_result = glob( $pattern );
if ( ! is_array( $glob_result ) ) {
$glob_result = array();
}
foreach ( $glob_result as $filename ) {
$ctime = filectime( $filename );
while( isset( $file_array[$ctime] ) ) { // Avoid collisions.
$ctime = $ctime + 0.1;
}
$file_array[$ctime] = $filename; // or just $filename
}
krsort( $file_array );
return $file_array;
} // End glob_by_date().
} // End class pluginbuddy_settings.
?>