Yu1709$!%yuyu!$%wutu!5=126+

                
____  ___       .__                 
\   \/  /  _____|  |   ______  _  __
 \     /  /  ___/  |  /  _ \ \/ \/ /
 /     \  \___ \|  |_(  <_> )     / 
/___/\  \/____  >____/\____/ \/\_/  
      \_/     \/    @ligmakokz

Editing: Dependency2.php

<?php
/**
 * PEAR_Dependency2, advanced dependency validation
 *
 * PHP versions 4 and 5
 *
 * @category   pear
 * @package    PEAR
 * @author     Greg Beaver <cellog@php.net>
 * @copyright  1997-2009 The Authors
 * @license    http://opensource.org/licenses/bsd-license.php New BSD License
 * @link       http://pear.php.net/package/PEAR
 * @since      File available since Release 1.4.0a1
 */

/**
 * Required for the PEAR_VALIDATE_* constants
 */
require_once 'PEAR/Validate.php';

/**
 * Dependency check for PEAR packages
 *
 * This class handles both version 1.0 and 2.0 dependencies
 * WARNING: *any* changes to this class must be duplicated in the
 * test_PEAR_Dependency2 class found in tests/PEAR_Dependency2/setup.php.inc,
 * or unit tests will not actually validate the changes
 * @category   pear
 * @package    PEAR
 * @author     Greg Beaver <cellog@php.net>
 * @copyright  1997-2009 The Authors
 * @license    http://opensource.org/licenses/bsd-license.php New BSD License
 * @version    Release: 1.10.16
 * @link       http://pear.php.net/package/PEAR
 * @since      Class available since Release 1.4.0a1
 */
class PEAR_Dependency2
{
    /**
     * One of the PEAR_VALIDATE_* states
     * @see PEAR_VALIDATE_NORMAL
     * @var integer
     */
    var $_state;

/**
     * Command-line options to install/upgrade/uninstall commands
     * @param array
     */
    var $_options;

/**
     * @var OS_Guess
     */
    var $_os;

/**
     * @var PEAR_Registry
     */
    var $_registry;

/**
     * @var PEAR_Config
     */
    var $_config;

/**
     * @var PEAR_DependencyDB
     */
    var $_dependencydb;

/**
     * Output of PEAR_Registry::parsedPackageName()
     * @var array
     */
    var $_currentPackage;

/**
     * @param PEAR_Config
     * @param array installation options
     * @param array format of PEAR_Registry::parsedPackageName()
     * @param int installation state (one of PEAR_VALIDATE_*)
     */
    function __construct(&$config, $installoptions, $package,
                              $state = PEAR_VALIDATE_INSTALLING)
    {
        $this->_config = &$config;
        if (!class_exists('PEAR_DependencyDB')) {
            require_once 'PEAR/DependencyDB.php';
        }

if (isset($installoptions['packagingroot'])) {
            // make sure depdb is in the right location
            $config->setInstallRoot($installoptions['packagingroot']);
        }

$this->_registry = &$config->getRegistry();
        $this->_dependencydb = &PEAR_DependencyDB::singleton($config);
        if (isset($installoptions['packagingroot'])) {
            $config->setInstallRoot(false);
        }

$this->_options = $installoptions;
        $this->_state = $state;
        if (!class_exists('OS_Guess')) {
            require_once 'OS/Guess.php';
        }

$this->_os = new OS_Guess;
        $this->_currentPackage = $package;
    }

static function _getExtraString($dep)
    {
        $extra = ' (';
        if (isset($dep['uri'])) {
            return '';
        }

if (isset($dep['recommended'])) {
            $extra .= 'recommended version ' . $dep['recommended'];
        } else {
            if (isset($dep['min'])) {
                $extra .= 'version >= ' . $dep['min'];
            }

if (isset($dep['max'])) {
                if ($extra != ' (') {
                    $extra .= ', ';
                }
                $extra .= 'version <= ' . $dep['max'];
            }

if (isset($dep['exclude'])) {
                if (!is_array($dep['exclude'])) {
                    $dep['exclude'] = array($dep['exclude']);
                }

if ($extra != ' (') {
                    $extra .= ', ';
                }

$extra .= 'excluded versions: ';
                foreach ($dep['exclude'] as $i => $exclude) {
                    if ($i) {
                        $extra .= ', ';
                    }
                    $extra .= $exclude;
                }
            }
        }

$extra .= ')';
        if ($extra == ' ()') {
            $extra = '';
        }

return $extra;
    }

/**
     * This makes unit-testing a heck of a lot easier
     */
    function getPHP_OS()
    {
        return PHP_OS;
    }

/**
     * This makes unit-testing a heck of a lot easier
     */
    function getsysname()
    {
        return $this->_os->getSysname();
    }

/**
     * Specify a dependency on an OS.  Use arch for detailed os/processor information
     *
     * There are two generic OS dependencies that will be the most common, unix and windows.
     * Other options are linux, freebsd, darwin (OS X), sunos, irix, hpux, aix
     */
    function validateOsDependency($dep)
    {
        if ($this->_state != PEAR_VALIDATE_INSTALLING && $this->_state != PEAR_VALIDATE_DOWNLOADING) {
            return true;
        }

if ($dep['name'] == '*') {
            return true;
        }

$not = isset($dep['conflicts']) ? true : false;
        switch (strtolower($dep['name'])) {
            case 'windows' :
                if ($not) {
                    if (strtolower(substr($this->getPHP_OS(), 0, 3)) == 'win') {
                        if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                            return $this->raiseError("Cannot install %s on Windows");
                        }

return $this->warning("warning: Cannot install %s on Windows");
                    }
                } else {
                    if (strtolower(substr($this->getPHP_OS(), 0, 3)) != 'win') {
                        if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                            return $this->raiseError("Can only install %s on Windows");
                        }

return $this->warning("warning: Can only install %s on Windows");
                    }
                }
            break;
            case 'unix' :
                $unices = array('linux', 'freebsd', 'darwin', 'sunos', 'irix', 'hpux', 'aix');
                if ($not) {
                    if (in_array($this->getSysname(), $unices)) {
                        if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                            return $this->raiseError("Cannot install %s on any Unix system");
                        }

return $this->warning( "warning: Cannot install %s on any Unix system");
                    }
                } else {
                    if (!in_array($this->getSysname(), $unices)) {
                        if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                            return $this->raiseError("Can only install %s on a Unix system");
                        }

return $this->warning("warning: Can only install %s on a Unix system");
                    }
                }
            break;
            default :
                if ($not) {
                    if (strtolower($dep['name']) == strtolower($this->getSysname())) {
                        if (!isset($this->_options['nodeps']) &&
                              !isset($this->_options['force'])) {
                            return $this->raiseError('Cannot install %s on ' . $dep['name'] .
                                ' operating system');
                        }

return $this->warning('warning: Cannot install %s on ' .
                            $dep['name'] . ' operating system');
                    }
                } else {
                    if (strtolower($dep['name']) != strtolower($this->getSysname())) {
                        if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                            return $this->raiseError('Cannot install %s on ' .
                                $this->getSysname() .
                                ' operating system, can only install on ' . $dep['name']);
                        }

return $this->warning('warning: Cannot install %s on ' .
                            $this->getSysname() .
                            ' operating system, can only install on ' . $dep['name']);
                    }
                }
        }
        return true;
    }

/**
     * This makes unit-testing a heck of a lot easier
     */
    function matchSignature($pattern)
    {
        return $this->_os->matchSignature($pattern);
    }

/**
     * Specify a complex dependency on an OS/processor/kernel version,
     * Use OS for simple operating system dependency.
     *
     * This is the only dependency that accepts an eregable pattern.  The pattern
     * will be matched against the php_uname() output parsed by OS_Guess
     */
    function validateArchDependency($dep)
    {
        if ($this->_state != PEAR_VALIDATE_INSTALLING) {
            return true;
        }

$not = isset($dep['conflicts']) ? true : false;
        if (!$this->matchSignature($dep['pattern'])) {
            if (!$not) {
                if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                    return $this->raiseError('%s Architecture dependency failed, does not ' .
                        'match "' . $dep['pattern'] . '"');
                }

return $this->warning('warning: %s Architecture dependency failed, does ' .
                    'not match "' . $dep['pattern'] . '"');
            }

return true;
        }

if ($not) {
            if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                return $this->raiseError('%s Architecture dependency failed, required "' .
                    $dep['pattern'] . '"');
            }

return $this->warning('warning: %s Architecture dependency failed, ' .
                'required "' . $dep['pattern'] . '"');
        }

return true;
    }

/**
     * This makes unit-testing a heck of a lot easier
     */
    function extension_loaded($name)
    {
        return extension_loaded($name);
    }

/**
     * This makes unit-testing a heck of a lot easier
     */
    function phpversion($name = null)
    {
        if ($name !== null) {
            return phpversion($name);
        }

return phpversion();
    }

function validateExtensionDependency($dep, $required = true)
    {
        if ($this->_state != PEAR_VALIDATE_INSTALLING &&
              $this->_state != PEAR_VALIDATE_DOWNLOADING) {
            return true;
        }

$loaded = $this->extension_loaded($dep['name']);
        $extra  = self::_getExtraString($dep);
        if (isset($dep['exclude'])) {
            if (!is_array($dep['exclude'])) {
                $dep['exclude'] = array($dep['exclude']);
            }
        }

if (!isset($dep['min']) && !isset($dep['max']) &&
            !isset($dep['recommended']) && !isset($dep['exclude'])
        ) {
            if ($loaded) {
                if (isset($dep['conflicts'])) {
                    if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                        return $this->raiseError('%s conflicts with PHP extension "' .
                            $dep['name'] . '"' . $extra);
                    }

return $this->warning('warning: %s conflicts with PHP extension "' .
                        $dep['name'] . '"' . $extra);
                }

return true;
            }

if (isset($dep['conflicts'])) {
                return true;
            }

if ($required) {
                if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                    return $this->raiseError('%s requires PHP extension "' .
                        $dep['name'] . '"' . $extra);
                }

return $this->warning('warning: %s requires PHP extension "' .
                    $dep['name'] . '"' . $extra);
            }

return $this->warning('%s can optionally use PHP extension "' .
                $dep['name'] . '"' . $extra);
        }

if (!$loaded) {
            if (isset($dep['conflicts'])) {
                return true;
            }

if (!$required) {
                return $this->warning('%s can optionally use PHP extension "' .
                    $dep['name'] . '"' . $extra);
            }

if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                return $this->raiseError('%s requires PHP extension "' . $dep['name'] .
                    '"' . $extra);
            }

return $this->warning('warning: %s requires PHP extension "' . $dep['name'] .
                    '"' . $extra);
        }

$version = (string) $this->phpversion($dep['name']);
        if (empty($version)) {
            $version = '0';
        }

$fail = false;
        if (isset($dep['min']) && !version_compare($version, $dep['min'], '>=')) {
            $fail = true;
        }

if (isset($dep['max']) && !version_compare($version, $dep['max'], '<=')) {
            $fail = true;
        }

if ($fail && !isset($dep['conflicts'])) {
            if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                return $this->raiseError('%s requires PHP extension "' . $dep['name'] .
                    '"' . $extra . ', installed version is ' . $version);
            }

return $this->warning('warning: %s requires PHP extension "' . $dep['name'] .
                '"' . $extra . ', installed version is ' . $version);
        } elseif ((isset($dep['min']) || isset($dep['max'])) && !$fail && isset($dep['conflicts'])) {
            if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                return $this->raiseError('%s conflicts with PHP extension "' .
                    $dep['name'] . '"' . $extra . ', installed version is ' . $version);
            }

return $this->warning('warning: %s conflicts with PHP extension "' .
                $dep['name'] . '"' . $extra . ', installed version is ' . $version);
        }

if (isset($dep['exclude'])) {
            foreach ($dep['exclude'] as $exclude) {
                if (version_compare($version, $exclude, '==')) {
                    if (isset($dep['conflicts'])) {
                        continue;
                    }

if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                        return $this->raiseError('%s is not compatible with PHP extension "' .
                            $dep['name'] . '" version ' .
                            $exclude);
                    }

return $this->warning('warning: %s is not compatible with PHP extension "' .
                        $dep['name'] . '" version ' .
                        $exclude);
                } elseif (version_compare($version, $exclude, '!=') && isset($dep['conflicts'])) {
                    if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                        return $this->raiseError('%s conflicts with PHP extension "' .
                            $dep['name'] . '"' . $extra . ', installed version is ' . $version);
                    }

return $this->warning('warning: %s conflicts with PHP extension "' .
                        $dep['name'] . '"' . $extra . ', installed version is ' . $version);
                }
            }
        }

if (isset($dep['recommended'])) {
            if (version_compare($version, $dep['recommended'], '==')) {
                return true;
            }

if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                return $this->raiseError('%s dependency: PHP extension ' . $dep['name'] .
                    ' version "' . $version . '"' .
                    ' is not the recommended version "' . $dep['recommended'] .
                    '", but may be compatible, use --force to install');
            }

return $this->warning('warning: %s dependency: PHP extension ' .
                $dep['name'] . ' version "' . $version . '"' .
                ' is not the recommended version "' . $dep['recommended'].'"');
        }

return true;
    }

function validatePhpDependency($dep)
    {
        if ($this->_state != PEAR_VALIDATE_INSTALLING &&
              $this->_state != PEAR_VALIDATE_DOWNLOADING) {
            return true;
        }

$version = $this->phpversion();
        $extra   = self::_getExtraString($dep);
        if (isset($dep['exclude'])) {
            if (!is_array($dep['exclude'])) {
                $dep['exclude'] = array($dep['exclude']);
            }
        }

if (isset($dep['min'])) {
            if (!version_compare($version, $dep['min'], '>=')) {
                if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                    return $this->raiseError('%s requires PHP' .
                        $extra . ', installed version is ' . $version);
                }

return $this->warning('warning: %s requires PHP' .
                    $extra . ', installed version is ' . $version);
            }
        }

if (isset($dep['max'])) {
            if (!version_compare($version, $dep['max'], '<=')) {
                if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                    return $this->raiseError('%s requires PHP' .
                        $extra . ', installed version is ' . $version);
                }

return $this->warning('warning: %s requires PHP' .
                    $extra . ', installed version is ' . $version);
            }
        }

if (isset($dep['exclude'])) {
            foreach ($dep['exclude'] as $exclude) {
                if (version_compare($version, $exclude, '==')) {
                    if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                        return $this->raiseError('%s is not compatible with PHP version ' .
                            $exclude);
                    }

return $this->warning(
                        'warning: %s is not compatible with PHP version ' .
                        $exclude);
                }
            }
        }

return true;
    }

/**
     * This makes unit-testing a heck of a lot easier
     */
    function getPEARVersion()
    {
        return '1.10.16';
    }

function validatePearinstallerDependency($dep)
    {
        $pearversion = $this->getPEARVersion();
        $extra = self::_getExtraString($dep);
        if (isset($dep['exclude'])) {
            if (!is_array($dep['exclude'])) {
                $dep['exclude'] = array($dep['exclude']);
            }
        }

if (version_compare($pearversion, $dep['min'], '<')) {
            if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                return $this->raiseError('%s requires PEAR Installer' . $extra .
                    ', installed version is ' . $pearversion);
            }

return $this->warning('warning: %s requires PEAR Installer' . $extra .
                ', installed version is ' . $pearversion);
        }

if (isset($dep['max'])) {
            if (version_compare($pearversion, $dep['max'], '>')) {
                if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                    return $this->raiseError('%s requires PEAR Installer' . $extra .
                        ', installed version is ' . $pearversion);
                }

return $this->warning('warning: %s requires PEAR Installer' . $extra .
                    ', installed version is ' . $pearversion);
            }
        }

if (isset($dep['exclude'])) {
            if (!isset($dep['exclude'][0])) {
                $dep['exclude'] = array($dep['exclude']);
            }

foreach ($dep['exclude'] as $exclude) {
                if (version_compare($exclude, $pearversion, '==')) {
                    if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                        return $this->raiseError('%s is not compatible with PEAR Installer ' .
                            'version ' . $exclude);
                    }

return $this->warning('warning: %s is not compatible with PEAR ' .
                        'Installer version ' . $exclude);
                }
            }
        }

return true;
    }

function validateSubpackageDependency($dep, $required, $params)
    {
        return $this->validatePackageDependency($dep, $required, $params);
    }

/**
     * @param array dependency information (2.0 format)
     * @param boolean whether this is a required dependency
     * @param array a list of downloaded packages to be installed, if any
     * @param boolean if true, then deps on pear.php.net that fail will also check
     *                against pecl.php.net packages to accommodate extensions that have
     *                moved to pecl.php.net from pear.php.net
     */
    function validatePackageDependency($dep, $required, $params, $depv1 = false)
    {
        if ($this->_state != PEAR_VALIDATE_INSTALLING &&
              $this->_state != PEAR_VALIDATE_DOWNLOADING) {
            return true;
        }

if (isset($dep['providesextension'])) {
            if ($this->extension_loaded($dep['providesextension'])) {
                $save = $dep;
                $subdep = $dep;
                $subdep['name'] = $subdep['providesextension'];
                PEAR::pushErrorHandling(PEAR_ERROR_RETURN);
                $ret = $this->validateExtensionDependency($subdep, $required);
                PEAR::popErrorHandling();
                if (!PEAR::isError($ret)) {
                    return true;
                }
            }
        }

if ($this->_state == PEAR_VALIDATE_INSTALLING) {
            return $this->_validatePackageInstall($dep, $required, $depv1);
        }

if ($this->_state == PEAR_VALIDATE_DOWNLOADING) {
            return $this->_validatePackageDownload($dep, $required, $params, $depv1);
        }
    }

function _validatePackageDownload($dep, $required, $params, $depv1 = false)
    {
        $dep['package'] = $dep['name'];
        if (isset($dep['uri'])) {
            $dep['channel'] = '__uri';
        }

$depname = $this->_registry->parsedPackageNameToString($dep, true);
        $found = false;
        foreach ($params as $param) {
            if ($param->isEqual(
                  array('package' => $dep['name'],
                        'channel' => $dep['channel']))) {
                $found = true;
                break;
            }

if ($depv1 && $dep['channel'] == 'pear.php.net') {
                if ($param->isEqual(
                  array('package' => $dep['name'],
                        'channel' => 'pecl.php.net'))) {
                    $found = true;
                    break;
                }
            }
        }

if (!$found && isset($dep['providesextension'])) {
            foreach ($params as $param) {
                if ($param->isExtension($dep['providesextension'])) {
                    $found = true;
                    break;
                }
            }
        }

if ($found) {
            $version = $param->getVersion();
            $installed = false;
            $downloaded = true;
        } else {
            if ($this->_registry->packageExists($dep['name'], $dep['channel'])) {
                $installed = true;
                $downloaded = false;
                $version = $this->_registry->packageinfo($dep['name'], 'version',
                    $dep['channel']);
            } else {
                if ($dep['channel'] == 'pecl.php.net' && $this->_registry->packageExists($dep['name'],
                      'pear.php.net')) {
                    $installed = true;
                    $downloaded = false;
                    $version = $this->_registry->packageinfo($dep['name'], 'version',
                        'pear.php.net');
                } else {
                    $version = 'not installed or downloaded';
                    $installed = false;
                    $downloaded = false;
                }
            }
        }

$extra = self::_getExtraString($dep);
        if (isset($dep['exclude']) && !is_array($dep['exclude'])) {
            $dep['exclude'] = array($dep['exclude']);
        }

if (!isset($dep['min']) && !isset($dep['max']) &&
              !isset($dep['recommended']) && !isset($dep['exclude'])
        ) {
            if ($installed || $downloaded) {
                $installed = $installed ? 'installed' : 'downloaded';
                if (isset($dep['conflicts'])) {
                    $rest = '';
                    if ($version) {
                        $rest = ", $installed version is " . $version;
                    }

if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                        return $this->raiseError('%s conflicts with package "' . $depname . '"' . $extra . $rest);
                    }

return $this->warning('warning: %s conflicts with package "' . $depname . '"' . $extra . $rest);
                }

return true;
            }

if (isset($dep['conflicts'])) {
                return true;
            }

if ($required) {
                if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                    return $this->raiseError('%s requires package "' . $depname . '"' . $extra);
                }

return $this->warning('warning: %s requires package "' . $depname . '"' . $extra);
            }

return $this->warning('%s can optionally use package "' . $depname . '"' . $extra);
        }

if (!$installed && !$downloaded) {
            if (isset($dep['conflicts'])) {
                return true;
            }

return $this->warning('warning: %s requires package "' . $depname . '"' . $extra);
            }

return $this->warning('%s can optionally use package "' . $depname . '"' . $extra);
        }

$fail = false;
        if (isset($dep['min']) && version_compare($version, $dep['min'], '<')) {
            $fail = true;
        }

if (isset($dep['max']) && version_compare($version, $dep['max'], '>')) {
            $fail = true;
        }

if ($fail && !isset($dep['conflicts'])) {
            $installed = $installed ? 'installed' : 'downloaded';
            $dep['package'] = $dep['name'];
            $dep = $this->_registry->parsedPackageNameToString($dep, true);
            if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                return $this->raiseError('%s requires package "' . $depname . '"' .
                    $extra . ", $installed version is " . $version);
            }

return $this->warning('warning: %s requires package "' . $depname . '"' .
                $extra . ", $installed version is " . $version);
        } elseif ((isset($dep['min']) || isset($dep['max'])) && !$fail &&
              isset($dep['conflicts']) && !isset($dep['exclude'])) {
            $installed = $installed ? 'installed' : 'downloaded';
            if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                return $this->raiseError('%s conflicts with package "' . $depname . '"' . $extra .
                    ", $installed version is " . $version);
            }

return $this->warning('warning: %s conflicts with package "' . $depname . '"' .
                $extra . ", $installed version is " . $version);
        }

if (isset($dep['exclude'])) {
            $installed = $installed ? 'installed' : 'downloaded';
            foreach ($dep['exclude'] as $exclude) {
                if (version_compare($version, $exclude, '==') && !isset($dep['conflicts'])) {
                    if (!isset($this->_options['nodeps']) &&
                          !isset($this->_options['force'])
                    ) {
                        return $this->raiseError('%s is not compatible with ' .
                            $installed . ' package "' .
                            $depname . '" version ' .
                            $exclude);
                    }

return $this->warning('warning: %s is not compatible with ' .
                        $installed . ' package "' .
                        $depname . '" version ' .
                        $exclude);
                } elseif (version_compare($version, $exclude, '!=') && isset($dep['conflicts'])) {
                    $installed = $installed ? 'installed' : 'downloaded';
                    if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                        return $this->raiseError('%s conflicts with package "' . $depname . '"' .
                            $extra . ", $installed version is " . $version);
                    }

return $this->warning('warning: %s conflicts with package "' . $depname . '"' .
                        $extra . ", $installed version is " . $version);
                }
            }
        }

if (isset($dep['recommended'])) {
            $installed = $installed ? 'installed' : 'downloaded';
            if (version_compare($version, $dep['recommended'], '==')) {
                return true;
            }

if (!$found && $installed) {
                $param = $this->_registry->getPackage($dep['name'], $dep['channel']);
            }

if ($param) {
                $found = false;
                foreach ($params as $parent) {
                    if ($parent->isEqual($this->_currentPackage)) {
                        $found = true;
                        break;
                    }
                }

if ($found) {
                    if ($param->isCompatible($parent)) {
                        return true;
                    }
                } else { // this is for validPackage() calls
                    $parent = $this->_registry->getPackage($this->_currentPackage['package'],
                        $this->_currentPackage['channel']);
                    if ($parent !== null && $param->isCompatible($parent)) {
                        return true;
                    }
                }
            }

if (!isset($this->_options['nodeps']) && !isset($this->_options['force']) &&
                  !isset($this->_options['loose'])
            ) {
                return $this->raiseError('%s dependency package "' . $depname .
                    '" ' . $installed . ' version ' . $version .
                    ' is not the recommended version ' . $dep['recommended'] .
                    ', but may be compatible, use --force to install');
            }

return $this->warning('warning: %s dependency package "' . $depname .
                '" ' . $installed . ' version ' . $version .
                ' is not the recommended version ' . $dep['recommended']);
        }

return true;
    }

function _validatePackageInstall($dep, $required, $depv1 = false)
    {
        return $this->_validatePackageDownload($dep, $required, array(), $depv1);
    }

/**
     * Verify that uninstalling packages passed in to command line is OK.
     *
     * @param PEAR_Installer $dl
     * @return PEAR_Error|true
     */
    function validatePackageUninstall(&$dl)
    {
        if (PEAR::isError($this->_dependencydb)) {
            return $this->_dependencydb;
        }

$params = array();
        // construct an array of "downloaded" packages to fool the package dependency checker
        // into using these to validate uninstalls of circular dependencies
        $downloaded = &$dl->getUninstallPackages();
        foreach ($downloaded as $i => $pf) {
            if (!class_exists('PEAR_Downloader_Package')) {
                require_once 'PEAR/Downloader/Package.php';
            }
            $dp = new PEAR_Downloader_Package($dl);
            $dp->setPackageFile($downloaded[$i]);
            $params[$i] = $dp;
        }

// check cache
        $memyselfandI = strtolower($this->_currentPackage['channel']) . '/' .
            strtolower($this->_currentPackage['package']);
        if (isset($dl->___uninstall_package_cache)) {
            $badpackages = $dl->___uninstall_package_cache;
            if (isset($badpackages[$memyselfandI]['warnings'])) {
                foreach ($badpackages[$memyselfandI]['warnings'] as $warning) {
                    $dl->log(0, $warning[0]);
                }
            }

if (isset($badpackages[$memyselfandI]['errors'])) {
                foreach ($badpackages[$memyselfandI]['errors'] as $error) {
                    if (is_array($error)) {
                        $dl->log(0, $error[0]);
                    } else {
                        $dl->log(0, $error->getMessage());
                    }
                }

if (isset($this->_options['nodeps']) || isset($this->_options['force'])) {
                    return $this->warning(
                        'warning: %s should not be uninstalled, other installed packages depend ' .
                        'on this package');
                }

return $this->raiseError(
                    '%s cannot be uninstalled, other installed packages depend on this package');
            }

return true;
        }

// first, list the immediate parents of each package to be uninstalled
        $perpackagelist = array();
        $allparents = array();
        foreach ($params as $i => $param) {
            $a = array(
                'channel' => strtolower($param->getChannel()),
                'package' => strtolower($param->getPackage())
            );

$deps = $this->_dependencydb->getDependentPackages($a);
            if ($deps) {
                foreach ($deps as $d) {
                    $pardeps = $this->_dependencydb->getDependencies($d);
                    foreach ($pardeps as $dep) {
                        if (strtolower($dep['dep']['channel']) == $a['channel'] &&
                              strtolower($dep['dep']['name']) == $a['package']) {
                            if (!isset($perpackagelist[$a['channel'] . '/' . $a['package']])) {
                                $perpackagelist[$a['channel'] . '/' . $a['package']] = array();
                            }
                            $perpackagelist[$a['channel'] . '/' . $a['package']][]
                                = array($d['channel'] . '/' . $d['package'], $dep);
                            if (!isset($allparents[$d['channel'] . '/' . $d['package']])) {
                                $allparents[$d['channel'] . '/' . $d['package']] = array();
                            }
                            if (!isset($allparents[$d['channel'] . '/' . $d['package']][$a['channel'] . '/' . $a['package']])) {
                                $allparents[$d['channel'] . '/' . $d['package']][$a['channel'] . '/' . $a['package']] = array();
                            }
                            $allparents[$d['channel'] . '/' . $d['package']]
                                       [$a['channel'] . '/' . $a['package']][]
                                = array($d, $dep);
                        }
                    }
                }
            }
        }

// next, remove any packages from the parents list that are not installed
        $remove = array();
        foreach ($allparents as $parent => $d1) {
            foreach ($d1 as $d) {
                if ($this->_registry->packageExists($d[0][0]['package'], $d[0][0]['channel'])) {
                    continue;
                }
                $remove[$parent] = true;
            }
        }

// next remove any packages from the parents list that are not passed in for
        // uninstallation
        foreach ($allparents as $parent => $d1) {
            foreach ($d1 as $d) {
                foreach ($params as $param) {
                    if (strtolower($param->getChannel()) == $d[0][0]['channel'] &&
                          strtolower($param->getPackage()) == $d[0][0]['package']) {
                        // found it
                        continue 3;
                    }
                }
                $remove[$parent] = true;
            }
        }

// remove all packages whose dependencies fail
        // save which ones failed for error reporting
        $badchildren = array();
        do {
            $fail = false;
            foreach ($remove as $package => $unused) {
                if (!isset($allparents[$package])) {
                    continue;
                }

foreach ($allparents[$package] as $kid => $d1) {
                    foreach ($d1 as $depinfo) {
                        if ($depinfo[1]['type'] != 'optional') {
                            if (isset($badchildren[$kid])) {
                                continue;
                            }
                            $badchildren[$kid] = true;
                            $remove[$kid] = true;
                            $fail = true;
                            continue 2;
                        }
                    }
                }
                if ($fail) {
                    // start over, we removed some children
                    continue 2;
                }
            }
        } while ($fail);

// next, construct the list of packages that can't be uninstalled
        $badpackages = array();
        $save = $this->_currentPackage;
        foreach ($perpackagelist as $package => $packagedeps) {
            foreach ($packagedeps as $parent) {
                if (!isset($remove[$parent[0]])) {
                    continue;
                }

$packagename = $this->_registry->parsePackageName($parent[0]);
                $packagename['channel'] = $this->_registry->channelAlias($packagename['channel']);
                $pa = $this->_registry->getPackage($packagename['package'], $packagename['channel']);
                $packagename['package'] = $pa->getPackage();
                $this->_currentPackage = $packagename;
                // parent is not present in uninstall list, make sure we can actually
                // uninstall it (parent dep is optional)
                $parentname['channel'] = $this->_registry->channelAlias($parent[1]['dep']['channel']);
                $pa = $this->_registry->getPackage($parent[1]['dep']['name'], $parent[1]['dep']['channel']);
                $parentname['package'] = $pa->getPackage();
                $parent[1]['dep']['package'] = $parentname['package'];
                $parent[1]['dep']['channel'] = $parentname['channel'];
                if ($parent[1]['type'] == 'optional') {
                    $test = $this->_validatePackageUninstall($parent[1]['dep'], false, $dl);
                    if ($test !== true) {
                        $badpackages[$package]['warnings'][] = $test;
                    }
                } else {
                    $test = $this->_validatePackageUninstall($parent[1]['dep'], true, $dl);
                    if ($test !== true) {
                        $badpackages[$package]['errors'][] = $test;
                    }
                }
            }
        }

$this->_currentPackage          = $save;
        $dl->___uninstall_package_cache = $badpackages;
        if (isset($badpackages[$memyselfandI])) {
            if (isset($badpackages[$memyselfandI]['warnings'])) {
                foreach ($badpackages[$memyselfandI]['warnings'] as $warning) {
                    $dl->log(0, $warning[0]);
                }
            }

return $this->raiseError(
                    '%s cannot be uninstalled, other installed packages depend on this package');
            }
        }

return true;
    }

function _validatePackageUninstall($dep, $required, $dl)
    {
        $depname = $this->_registry->parsedPackageNameToString($dep, true);
        $version = $this->_registry->packageinfo($dep['package'], 'version', $dep['channel']);
        if (!$version) {
            return true;
        }

$extra = self::_getExtraString($dep);
        if (isset($dep['exclude']) && !is_array($dep['exclude'])) {
            $dep['exclude'] = array($dep['exclude']);
        }

if (isset($dep['conflicts'])) {
            return true; // uninstall OK - these packages conflict (probably installed with --force)
        }

if (!isset($dep['min']) && !isset($dep['max'])) {
            if (!$required) {
                return $this->warning('"' . $depname . '" can be optionally used by ' .
                        'installed package %s' . $extra);
            }

if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
                return $this->raiseError('"' . $depname . '" is required by ' .
                    'installed package %s' . $extra);
            }

return $this->warning('warning: "' . $depname . '" is required by ' .
                'installed package %s' . $extra);
        }

$fail = false;
        if (isset($dep['min']) && version_compare($version, $dep['min'], '>=')) {
            $fail = true;
        }

if (isset($dep['max']) && version_compare($version, $dep['max'], '<=')) {
            $fail = true;
        }

// we re-use this variable, preserve the original value
        $saverequired = $required;
        if (!$required) {
            return $this->warning($depname . $extra . ' can be optionally used by installed package' .
                    ' "%s"');
        }

if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
            return $this->raiseError($depname . $extra . ' is required by installed package' .
                ' "%s"');
        }

return $this->raiseError('warning: ' . $depname . $extra .
            ' is required by installed package "%s"');
    }

/**
     * validate a downloaded package against installed packages
     *
     * As of PEAR 1.4.3, this will only validate
     *
     * @param array|PEAR_Downloader_Package|PEAR_PackageFile_v1|PEAR_PackageFile_v2
     *              $pkg package identifier (either
     *                   array('package' => blah, 'channel' => blah) or an array with
     *                   index 'info' referencing an object)
     * @param PEAR_Downloader $dl
     * @param array $params full list of packages to install
     * @return true|PEAR_Error
     */
    function validatePackage($pkg, &$dl, $params = array())
    {
        if (is_array($pkg) && isset($pkg['info'])) {
            $deps = $this->_dependencydb->getDependentPackageDependencies($pkg['info']);
        } else {
            $deps = $this->_dependencydb->getDependentPackageDependencies($pkg);
        }

$fail = false;
        if ($deps) {
            if (!class_exists('PEAR_Downloader_Package')) {
                require_once 'PEAR/Downloader/Package.php';
            }

$dp = new PEAR_Downloader_Package($dl);
            if (is_object($pkg)) {
                $dp->setPackageFile($pkg);
            } else {
                $dp->setDownloadURL($pkg);
            }

PEAR::pushErrorHandling(PEAR_ERROR_RETURN);
            foreach ($deps as $channel => $info) {
                foreach ($info as $package => $ds) {
                    foreach ($params as $packd) {
                        if (strtolower($packd->getPackage()) == strtolower($package) &&
                              $packd->getChannel() == $channel) {
                            $dl->log(3, 'skipping installed package check of "' .
                                        $this->_registry->parsedPackageNameToString(
                                            array('channel' => $channel, 'package' => $package),
                                            true) .
                                        '", version "' . $packd->getVersion() . '" will be ' .
                                        'downloaded and installed');
                            continue 2; // jump to next package
                        }
                    }

foreach ($ds as $d) {
                        $checker = new PEAR_Dependency2($this->_config, $this->_options,
                            array('channel' => $channel, 'package' => $package), $this->_state);
                        $dep = $d['dep'];
                        $required = $d['type'] == 'required';
                        $ret = $checker->_validatePackageDownload($dep, $required, array(&$dp));
                        if (is_array($ret)) {
                            $dl->log(0, $ret[0]);
                        } elseif (PEAR::isError($ret)) {
                            $dl->log(0, $ret->getMessage());
                            $fail = true;
                        }
                    }
                }
            }
            PEAR::popErrorHandling();
        }

if ($fail) {
            return $this->raiseError(
                '%s cannot be installed, conflicts with installed packages');
        }

return true;
    }

/**
     * validate a package.xml 1.0 dependency
     */
    function validateDependency1($dep, $params = array())
    {
        if (!isset($dep['optional'])) {
            $dep['optional'] = 'no';
        }

list($newdep, $type) = self::normalizeDep($dep);
        if (!$newdep) {
            return $this->raiseError("Invalid Dependency");
        }

if (method_exists($this, "validate{$type}Dependency")) {
            return $this->{"validate{$type}Dependency"}($newdep, $dep['optional'] == 'no',
                $params, true);
        }
    }

/**
     * Convert a 1.0 dep into a 2.0 dep
     */
    static function normalizeDep($dep)
    {
        $types = array(
            'pkg' => 'Package',
            'ext' => 'Extension',
            'os' => 'Os',
            'php' => 'Php'
        );

if (!isset($types[$dep['type']])) {
            return array(false, false);
        }

$type = $types[$dep['type']];

$newdep = array();
        switch ($type) {
            case 'Package' :
                $newdep['channel'] = 'pear.php.net';
            case 'Extension' :
            case 'Os' :
                $newdep['name'] = $dep['name'];
            break;
        }

$dep['rel'] = PEAR_Dependency2::signOperator($dep['rel']);
        switch ($dep['rel']) {
            case 'has' :
                return array($newdep, $type);
            break;
            case 'not' :
                $newdep['conflicts'] = true;
            break;
            case '>=' :
            case '>' :
                $newdep['min'] = $dep['version'];
                if ($dep['rel'] == '>') {
                    $newdep['exclude'] = $dep['version'];
                }
            break;
            case '<=' :
            case '<' :
                $newdep['max'] = $dep['version'];
                if ($dep['rel'] == '<') {
                    $newdep['exclude'] = $dep['version'];
                }
            break;
            case 'ne' :
            case '!=' :
                $newdep['min'] = '0';
                $newdep['max'] = '100000';
                $newdep['exclude'] = $dep['version'];
            break;
            case '==' :
                $newdep['min'] = $dep['version'];
                $newdep['max'] = $dep['version'];
            break;
        }
        if ($type == 'Php') {
            if (!isset($newdep['min'])) {
                $newdep['min'] = '4.4.0';
            }

if (!isset($newdep['max'])) {
                $newdep['max'] = '6.0.0';
            }
        }
        return array($newdep, $type);
    }

/**
     * Converts text comparing operators to them sign equivalents
     *
     * Example: 'ge' to '>='
     *
     * @access public
     * @param  string Operator
     * @return string Sign equivalent
     */
    static function signOperator($operator)
    {
        switch($operator) {
            case 'lt': return '<';
            case 'le': return '<=';
            case 'gt': return '>';
            case 'ge': return '>=';
            case 'eq': return '==';
            case 'ne': return '!=';
            default:
                return $operator;
        }
    }

function raiseError($msg)
    {
        if (isset($this->_options['ignore-errors'])) {
            return $this->warning($msg);
        }

return PEAR::raiseError(sprintf($msg, $this->_registry->parsedPackageNameToString(
            $this->_currentPackage, true)));
    }

function warning($msg)
    {
        return array(sprintf($msg, $this->_registry->parsedPackageNameToString(
            $this->_currentPackage, true)));
    }
}

Name	Type	Actions
ChannelFile	Directory
Command	Directory
Downloader	Directory
Frontend	Directory
Installer	Directory
PackageFile	Directory
REST	Directory
Task	Directory
Validator	Directory
Builder.php	File
ChannelFile.php	File
Command.php	File
Common.php	File
Config.php	File
Dependency2.php	File
DependencyDB.php	File
Downloader.php	File
ErrorStack.php	File
Exception.php	File
Frontend.php	File
Installer.php	File
PackageFile.php	File
Packager.php	File
Proxy.php	File
REST.php	File
Registry.php	File
RunTest.php	File
Validate.php	File
XMLParser.php	File