* @copyright 2005 Joshua St. Marie */ class fpath { private $doc_root; // the top location of the project, eg: /home/user/webroot/myproject private $path; // the path to add to the document root function fpath ($path='') { if($this->pathSanity($path)) $this->setDocRoot($this->formatPath($path)); } function getDocRoot () { if(!empty($this->doc_root) && isset($this->doc_root)) return $this->doc_root; else return false; } private function setDocRoot ($doc_root) { $this->doc_root = $doc_root; return true; } function setPath ($path) { if(substr($this->formatPath($path), 0, 1) == DIRECTORY_SEPARATOR) { $this->path = $path; if($this->pathSanity($this->formatPath($this->doc_root.$this->path))) return $this->formatPath($this->doc_root.$this->path); else return false; } else { $this->path = DIRECTORY_SEPARATOR.$path; if($this->pathSanity($this->formatPath($this->doc_root.$this->path))) return $this->formatPath($this->doc_root.$this->path); else return false; } } function getPath () { if(!empty($this->path) && isset($this->path)) return $this->formatPath($this->doc_root.$this->path); else return false; } function pathSanity ($path) { // run the path through some checks to make sure it's ok $regex = "/(\\\\\.\\.|\\\\\.|\.\.\\\|\.\\\|\.\.\/|\.\/|;|(?\\1",$path); echo "

".$errStr."

\n"; foreach($matches[0] as $k => $v) { if($v[0] == '../' || $v[0] == '..\\' || $v[0] == '\..') $type = 'UP'; elseif($v[0] == './' || $v[0] == '.\\' || $v[0] == '\.') $type = 'CUR'; elseif($v[0] == ';' || $v[0] == ':') $type = 'SEP'; echo "[0x".str_pad($v[1],4,'0',STR_PAD_LEFT); echo " $type] Illegal path segment: ".$v[0]."
\n"; } return false; } else // passed "../ ./ ..\ .\ \.. \. : ;" check { // make sure the location exists now if(file_exists($path)) { return true; } else { echo "

Path doesnt exist: $path"; return false; } } } function formatPath ($path) { $slash_replace = "~/+|\\\+~"; $path = preg_replace($slash_replace, DIRECTORY_SEPARATOR, $path); if(DIRECTORY_SEPARATOR == '/') // Dealing with *nix separator { if(stristr($path,'\\')) // Dealing with windows path on *nix. { $path = explode('\\',$path); $path = implode('/',$path); } } elseif(DIRECTORY_SEPARATOR == '\\') { if(stristr($path,'/')) // Dealing with *nix path on Windows. { $path = explode('/',$path); $path = implode('\\',$path); } } // strip un-wanted slashes, format the path for windows or unix? $plen = strlen($path); if(substr($path, $plen-1, 1) == '/' || substr($path, $plen-1, 1) == '\\') { return substr($path, 0, $plen-1); } else return $path; } } $fm = new fpath(dirname(realpath($_SERVER['SCRIPT_FILENAME']))); ?>