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| 0,0 → 1,186 |
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| <?php |
| /** |
| * PEAR_Frontend, the singleton-based frontend for user input/output |
| * |
| * PHP versions 4 and 5 |
| * |
| * LICENSE: This source file is subject to version 3.0 of the PHP license |
| * that is available through the world-wide-web at the following URI: |
| * http://www.php.net/license/3_0.txt. If you did not receive a copy of |
| * the PHP License and are unable to obtain it through the web, please |
| * send a note to license@php.net so we can mail you a copy immediately. |
| * |
| * @category pear |
| * @package PEAR |
| * @author Greg Beaver <cellog@php.net> |
| * @copyright 1997-2006 The PHP Group |
| * @license http://www.php.net/license/3_0.txt PHP License 3.0 |
| * @version CVS: $Id: Frontend.php,v 1.9 2006/03/03 13:13:07 pajoye Exp $ |
| * @link http://pear.php.net/package/PEAR |
| * @since File available since Release 1.4.0a1 |
| */ |
| |
| /** |
| * Which user interface class is being used. |
| * @var string class name |
| */ |
| $GLOBALS['_PEAR_FRONTEND_CLASS'] = 'PEAR_Frontend_CLI'; |
| |
| /** |
| * Instance of $_PEAR_Command_uiclass. |
| * @var object |
| */ |
| $GLOBALS['_PEAR_FRONTEND_SINGLETON'] = null; |
| |
| /** |
| * Singleton-based frontend for PEAR user input/output |
| * |
| * Note that frontend classes must implement userConfirm(), and shoul implement |
| * displayFatalError() and outputData() |
| * @category pear |
| * @package PEAR |
| * @author Greg Beaver <cellog@php.net> |
| * @copyright 1997-2006 The PHP Group |
| * @license http://www.php.net/license/3_0.txt PHP License 3.0 |
| * @version Release: 1.5.1 |
| * @link http://pear.php.net/package/PEAR |
| * @since Class available since Release 1.4.0a1 |
| */ |
| class PEAR_Frontend extends PEAR |
| { |
| /** |
| * Retrieve the frontend object |
| * @return PEAR_Frontend_CLI|PEAR_Frontend_Web|PEAR_Frontend_Gtk |
| * @static |
| */ |
| function &singleton($type = null) |
| { |
| if ($type === null) { |
| if (!isset($GLOBALS['_PEAR_FRONTEND_SINGLETON'])) { |
| $a = false; |
| return $a; |
| } |
| return $GLOBALS['_PEAR_FRONTEND_SINGLETON']; |
| } else { |
| $a = PEAR_Frontend::setFrontendClass($type); |
| return $a; |
| } |
| } |
| |
| /** |
| * Set the frontend class that will be used by calls to {@link singleton()} |
| * |
| * Frontends are expected to conform to the PEAR naming standard of |
| * _ => DIRECTORY_SEPARATOR (PEAR_Frontend_CLI is in PEAR/Frontend/CLI.php) |
| * @param string $uiclass full class name |
| * @return PEAR_Frontend |
| * @static |
| */ |
| function &setFrontendClass($uiclass) |
| { |
| if (is_object($GLOBALS['_PEAR_FRONTEND_SINGLETON']) && |
| is_a($GLOBALS['_PEAR_FRONTEND_SINGLETON'], $uiclass)) { |
| return $GLOBALS['_PEAR_FRONTEND_SINGLETON']; |
| } |
| if (!class_exists($uiclass)) { |
| $file = str_replace('_', '/', $uiclass) . '.php'; |
| if (PEAR_Frontend::isIncludeable($file)) { |
| include_once $file; |
| } |
| } |
| if (class_exists($uiclass)) { |
| $obj = &new $uiclass; |
| // quick test to see if this class implements a few of the most |
| // important frontend methods |
| if (method_exists($obj, 'userConfirm')) { |
| $GLOBALS['_PEAR_FRONTEND_SINGLETON'] = &$obj; |
| $GLOBALS['_PEAR_FRONTEND_CLASS'] = $uiclass; |
| return $obj; |
| } else { |
| $err = PEAR::raiseError("not a frontend class: $uiclass"); |
| return $err; |
| } |
| } |
| $err = PEAR::raiseError("no such class: $uiclass"); |
| return $err; |
| } |
| |
| /** |
| * Set the frontend class that will be used by calls to {@link singleton()} |
| * |
| * Frontends are expected to be a descendant of PEAR_Frontend |
| * @param PEAR_Frontend |
| * @return PEAR_Frontend |
| * @static |
| */ |
| function &setFrontendObject($uiobject) |
| { |
| if (is_object($GLOBALS['_PEAR_FRONTEND_SINGLETON']) && |
| is_a($GLOBALS['_PEAR_FRONTEND_SINGLETON'], get_class($uiobject))) { |
| return $GLOBALS['_PEAR_FRONTEND_SINGLETON']; |
| } |
| if (!is_a($uiobject, 'PEAR_Frontend')) { |
| $err = PEAR::raiseError('not a valid frontend class: (' . |
| get_class($uiobject) . ')'); |
| return $err; |
| } |
| // quick test to see if this class implements a few of the most |
| // important frontend methods |
| if (method_exists($uiobject, 'userConfirm')) { |
| $GLOBALS['_PEAR_FRONTEND_SINGLETON'] = &$uiobject; |
| $GLOBALS['_PEAR_FRONTEND_CLASS'] = get_class($uiobject); |
| return $uiobject; |
| } else { |
| $err = PEAR::raiseError("not a value frontend class: (" . get_class($uiobject) |
| . ')'); |
| return $err; |
| } |
| } |
| |
| /** |
| * @param string $path relative or absolute include path |
| * @return boolean |
| * @static |
| */ |
| function isIncludeable($path) |
| { |
| if (file_exists($path) && is_readable($path)) { |
| return true; |
| } |
| $ipath = explode(PATH_SEPARATOR, ini_get('include_path')); |
| foreach ($ipath as $include) { |
| $test = realpath($include . DIRECTORY_SEPARATOR . $path); |
| if (!$test) { // support wrappers like phar (realpath just don't work with them) |
| $test = $include . DIRECTORY_SEPARATOR . $path; |
| } |
| if (file_exists($test) && is_readable($test)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * @param PEAR_Config |
| */ |
| function setConfig(&$config) |
| { |
| } |
| |
| /** |
| * This can be overridden to allow session-based temporary file management |
| * |
| * By default, all files are deleted at the end of a session. The web installer |
| * needs to be able to sustain a list over many sessions in order to support |
| * user interaction with install scripts |
| */ |
| function addTempFile($file) |
| { |
| $GLOBALS['_PEAR_Common_tempfiles'][] = $file; |
| } |
| |
| function log($msg, $append_crlf = true) |
| { |
| } |
| } |
| ?> |