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<?php //$Id$

//This file is part of DeforaOS Web DaPortal

//This program is free software: you can redistribute it and/or modify

//it under the terms of the GNU General Public License as published by

//the Free Software Foundation, version 3 of the License.

//This program is distributed in the hope that it will be useful,

//but WITHOUT ANY WARRANTY; without even the implied warranty of

//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

//GNU General Public License for more details.

//You should have received a copy of the GNU General Public License

//along with this program. If not, see <http://www.gnu.org/licenses/>.

//HTTPFriendlyEngine

class HTTPFriendlyEngine extends HTTPEngine

{

//public

//methods

//essential

//HTTPFriendlyEngine::match

public function match()

{

if(($score = parent::match()) != 100)

return $score;

return $score + 1;

}

//accessors

//HTTPFriendlyEngine::getRequest

public function getRequest()

{

return parent::getRequest();

}

protected function _getRequestDo()

{

//XXX hack to avoid testing twice for idempotence

if($this->request !== FALSE)

return $this->request;

if(!isset($_SERVER['PATH_INFO']))

return parent::_getRequestDo();

$path = explode('/', $_SERVER['PATH_INFO']);

if(!is_array($path) || count($path) < 2)

return parent::_getRequestDo();

//the first element is empty

array_shift($path);

//the second element is the module name

if(($module = array_shift($path)) == '')

return parent::_getRequestDo();

$action = FALSE;

$id = FALSE;

$title = FALSE;

$type = FALSE;

$extension = FALSE;

$args = FALSE;

if(count($path) > 0)

{

//the third element is the action (or the ID directly)

$id = array_shift($path);

if(!is_numeric($id))

{

//there is an action before the ID

$action = $id;

$id = FALSE;

if(count($path) > 0 && is_numeric($path[0]))

$id = array_shift($path);

}

if(count($path) > 0)

$title = implode('/', $path);

//arguments

//XXX is there a function to do this directly?

$query = explode('&', $_SERVER['QUERY_STRING']);

foreach($query as $q)

{

$q = explode('=', $q);

if(count($q) < 2)

continue;

if($args === FALSE)

$args = array();

$q0 = urldecode(array_shift($q));

$q1 = urldecode(implode('=', $q));

if($title === FALSE && $q0 == '_title')

$title = $q1;

else if($q0 == '_type')

$type = $q1;

else if(($pos = strpos($q0, '[')) !== FALSE

&& $pos > 0 && substr($q0, -1) == ']')

{

//convert to an array as really expected

$key = substr($q0, 0, $pos);

$value = substr($q0, $pos + 1, -1);

if(!isset($args[$key]))

$args[$key] = array($value);

else

$args[$key][] = $value;

}

else

$args[$q0] = $q1;

}

$this->request = new Request($module, $action, $id, $title,

$args);

if($type !== FALSE && strlen($type) > 0)

$this->request->setType($type);

if($this->getDebug())

$this->_getRequestDebug();

return $this->request;

}

//HTTPFriendlyEngine::getURL

public function getURL(Request $request = NULL, $absolute = TRUE)

{

global $config;

$secure = $config->get('engine::http', 'secure');

//use the kicker if defined

if(($kicker = $config->get($this->section, 'kicker'))

!== FALSE && strlen($kicker) > 0)

$name = dirname($_SERVER['SCRIPT_NAME']).'/'.$kicker;

else

$name = $_SERVER['SCRIPT_NAME'];

$name = ltrim($name, '/');

if((!$this->isHTTPS() && $secure) || $absolute)

$url = $this->_getURLAbsolute($name, $secure);

else

//prepare a relative address

$url = basename($name);

//return if already complete

if(is_null($request)

|| ($module = $request->getModule()) === FALSE)

return $url;

//handle the main parameters

$url .= '/'.$module;

if(($action = $request->getAction()) !== FALSE)

$url .= '/'.$action;

if(($id = $request->getID()) !== FALSE)

$url .= '/'.$id;

if(($title = $request->getTitle()) !== FALSE)

{

if($action === FALSE && $id === FALSE)

$url .= '/default';

$title = str_replace(array(' ', '?', '#'),

array('%20', '%3F', '-'), $title);

if($config->get($this->section, 'lowercase'))

$title = strtolower($title);

$url .= '/'.$title;

}

//handle arguments

if($request->isIdempotent()

&& ($args = $request->getParameters())

!== FALSE)

{

$sep = '?';

foreach($args as $key => $value)

$url .= $this->_getURLParameter($key, $value,

$sep);

}

return $url;

}

//private

//properties

private $section = 'engine::httpfriendly';

}