v2.php

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        foreach ($sub as $dep) {
            if (strtolower($dep['name']) == strtolower($p->getPackage())) {
                if (isset($dep['channel'])) {
                    if (strtolower($dep['channel']) == strtolower($p->getChannel())) {
                        return true;
                    }
                } else {
                    if ($dep['uri'] == $p->getURI()) {
                        return true;
                    }
                }
            }
        }
        return false;
    }

    function dependsOn($package, $channel)
    {
        if (!($deps = $this->getDependencies())) {
            return false;
        }
        foreach (array('package', 'subpackage') as $type) {
            foreach (array('required', 'optional') as $needed) {
                if (isset($deps[$needed][$type])) {
                    if (!isset($deps[$needed][$type][0])) {
                        $deps[$needed][$type] = array($deps[$needed][$type]);
                    }
                    foreach ($deps[$needed][$type] as $dep) {
                        $depchannel = isset($dep['channel']) ? $dep['channel'] : '__uri';
                        if (strtolower($dep['name']) == strtolower($package) &&
                              $depchannel == $channel) {
                            return true;
                        }  
                    }
                }
            }
            if (isset($deps['group'])) {
                if (!isset($deps['group'][0])) {
                    $dep['group'] = array($deps['group']);
                }
                foreach ($deps['group'] as $group) {
                    if (isset($group[$type])) {
                        if (!is_array($group[$type])) {
                            $group[$type] = array($group[$type]);
                        }
                        foreach ($group[$type] as $dep) {
                            $depchannel = isset($dep['channel']) ? $dep['channel'] : '__uri';
                            if (strtolower($dep['name']) == strtolower($package) &&
                                  $depchannel == $channel) {
                                return true;
                            }  
                        }
                    }
                }
            }
        }
        return false;
    }

    /**
     * Get the contents of a dependency group
     * @param string
     * @return array|false
     */
    function getDependencyGroup($name)
    {
        $name = strtolower($name);
        if (!isset($this->_packageInfo['dependencies']['group'])) {
            return false;
        }
        $groups = $this->_packageInfo['dependencies']['group'];
        if (!isset($groups[0])) {
            $groups = array($groups);
        }
        foreach ($groups as $group) {
            if (strtolower($group['attribs']['name']) == $name) {
                return $group;
            }
        }
        return false;
    }

    /**
     * Retrieve a partial package.xml 1.0 representation of dependencies
     *
     * a very limited representation of dependencies is returned by this method.
     * The <exclude> tag for excluding certain versions of a dependency is
     * completely ignored.  In addition, dependency groups are ignored, with the
     * assumption that all dependencies in dependency groups are also listed in
     * the optional group that work with all dependency groups
     * @param boolean return package.xml 2.0 <dependencies> tag
     * @return array|false
     */
    function getDeps($raw = false, $nopearinstaller = false)
    {
        if (isset($this->_packageInfo['dependencies'])) {
            if ($raw) {
                return $this->_packageInfo['dependencies'];
            }
            $ret = array();
            $map = array(
                'php' => 'php',
                'package' => 'pkg',
                'subpackage' => 'pkg',
                'extension' => 'ext',
                'os' => 'os',
                'pearinstaller' => 'pkg',
                );
            foreach (array('required', 'optional') as $type) {
                $optional = ($type == 'optional') ? 'yes' : 'no';
                if (!isset($this->_packageInfo['dependencies'][$type])) {
                    continue;
                }
                foreach ($this->_packageInfo['dependencies'][$type] as $dtype => $deps) {
                    if ($dtype == 'pearinstaller' && $nopearinstaller) {
                        continue;
                    }
                    if (!isset($deps[0])) {
                        $deps = array($deps);
                    }
                    foreach ($deps as $dep) {
                        if (!isset($map[$dtype])) {
                            // no support for arch type
                            continue;
                        }
                        if ($dtype == 'pearinstaller') {
                            $dep['name'] = 'PEAR';
                            $dep['channel'] = 'pear.php.net';
                        }
                        $s = array('type' => $map[$dtype]);
                        if (isset($dep['channel'])) {
                            $s['channel'] = $dep['channel'];
                        }
                        if (isset($dep['uri'])) {
                            $s['uri'] = $dep['uri'];
                        }
                        if (isset($dep['name'])) {
                            $s['name'] = $dep['name'];
                        }
                        if (isset($dep['conflicts'])) {
                            $s['rel'] = 'not';
                        } else {
                            if (!isset($dep['min']) &&
                                  !isset($dep['max'])) {
                                $s['rel'] = 'has';
                                $s['optional'] = $optional;
                            } elseif (isset($dep['min']) &&
                                  isset($dep['max'])) {
                                $s['rel'] = 'ge';
                                $s1 = $s;
                                $s1['rel'] = 'le';
                                $s['version'] = $dep['min'];
                                $s1['version'] = $dep['max'];
                                if (isset($dep['channel'])) {
                                    $s1['channel'] = $dep['channel'];
                                }
                                if ($dtype != 'php') {
                                    $s['name'] = $dep['name'];
                                    $s1['name'] = $dep['name'];
                                }
                                $s['optional'] = $optional;
                                $s1['optional'] = $optional;
                                $ret[] = $s1;
                            } elseif (isset($dep['min'])) {
                                if (isset($dep['exclude']) &&
                                      $dep['exclude'] == $dep['min']) {
                                    $s['rel'] = 'gt';
                                } else {
                                    $s['rel'] = 'ge';
                                }
                                $s['version'] = $dep['min'];
                                $s['optional'] = $optional;
                                if ($dtype != 'php') {
                                    $s['name'] = $dep['name'];
                                }
                            } elseif (isset($dep['max'])) {
                                if (isset($dep['exclude']) &&
                                      $dep['exclude'] == $dep['max']) {
                                    $s['rel'] = 'lt';
                                } else {
                                    $s['rel'] = 'le';
                                }
                                $s['version'] = $dep['max'];
                                $s['optional'] = $optional;
                                if ($dtype != 'php') {
                                    $s['name'] = $dep['name'];
                                }
                            }
                        }
                        $ret[] = $s;
                    }
                }
            }
            if (count($ret)) {
                return $ret;
            }
        }
        return false;
    }

    /**
     * @return php|extsrc|extbin|zendextsrc|zendextbin|bundle|false
     */
    function getPackageType()
    {
        if (isset($this->_packageInfo['phprelease'])) {
            return 'php';
        }
        if (isset($this->_packageInfo['extsrcrelease'])) {
            return 'extsrc';
        }
        if (isset($this->_packageInfo['extbinrelease'])) {
            return 'extbin';
        }
        if (isset($this->_packageInfo['zendextsrcrelease'])) {
            return 'zendextsrc';
        }
        if (isset($this->_packageInfo['zendextbinrelease'])) {
            return 'zendextbin';
        }
        if (isset($this->_packageInfo['bundle'])) {
            return 'bundle';
        }
        return false;
    }

    /**
     * @return array|false
     */
    function getReleases()
    {
        $type = $this->getPackageType();
        if ($type != 'bundle') {
            $type .= 'release';
        }
        if ($this->getPackageType() && isset($this->_packageInfo[$type])) {
            return $this->_packageInfo[$type];
        }
        return false;
    }

    /**
     * @return array
     */
    function getChangelog()
    {
        if (isset($this->_packageInfo['changelog'])) {
            return $this->_packageInfo['changelog'];
        }
        return false;
    }

    function hasDeps()
    {
        return isset($this->_packageInfo['dependencies']);
    }

    function getPackagexmlVersion()
    {
        if (isset($this->_packageInfo['zendextsrcrelease'])) {
            return '2.1';
        }
        if (isset($this->_packageInfo['zendextbinrelease'])) {
            return '2.1';
        }
        return '2.0';
    }

    /**
     * @return array|false
     */
    function getSourcePackage()
    {
        if (isset($this->_packageInfo['extbinrelease']) ||
              isset($this->_packageInfo['zendextbinrelease'])) {
            return array('channel' => $this->_packageInfo['srcchannel'],
                         'package' => $this->_packageInfo['srcpackage']);
        }
        return false;
    }

    function getBundledPackages()
    {
        if (isset($this->_packageInfo['bundle'])) {
            return $this->_packageInfo['contents']['bundledpackage'];
        }
        return false;
    }

    function getLastModified()
    {
        if (isset($this->_packageInfo['_lastmodified'])) {
            return $this->_packageInfo['_lastmodified'];
        }
        return false;
    }

    /**
     * Get the contents of a file listed within the package.xml
     * @param string
     * @return string
     */
    function getFileContents($file)
    {
        if ($this->_archiveFile == $this->_packageFile) { // unpacked
            $dir = dirname($this->_packageFile);
            $file = $dir . DIRECTORY_SEPARATOR . $file;
            $file = str_replace(array('/', '\\'),
                array(DIRECTORY_SEPARATOR, DIRECTORY_SEPARATOR), $file);
            if (file_exists($file) && is_readable($file)) {
                return implode('', file($file));
            }
        } else { // tgz
            $tar = &new Archive_Tar($this->_archiveFile);
            $tar->pushErrorHandling(PEAR_ERROR_RETURN);
            if ($file != 'package.xml' && $file != 'package2.xml') {
                $file = $this->getPackage() . '-' . $this->getVersion() . '/' . $file;
            }
            $file = $tar->extractInString($file);
            $tar->popErrorHandling();
            if (PEAR::isError($file)) {
                return PEAR::raiseError("Cannot locate file '$file' in archive");
            }
            return $file;
        }
    }

    function &getRW()
    {
        if (!class_exists('PEAR_PackageFile_v2_rw')) {
            require_once 'PEAR/PackageFile/v2/rw.php';
        }
        $a = new PEAR_PackageFile_v2_rw;
        foreach (get_object_vars($this) as $name => $unused) {
            if (!isset($this->$name)) {
                continue;
            }
            if ($name == '_config' || $name == '_logger'|| $name == '_registry' ||
                  $name == '_stack') {
                $a->$name = &$this->$name;
            } else {
                $a->$name = $this->$name;
            }
        }
        return $a;
    }

    function &getDefaultGenerator()
    {
        if (!class_exists('PEAR_PackageFile_Generator_v2')) {
            require_once 'PEAR/PackageFile/Generator/v2.php';
        }
        $a = &new PEAR_PackageFile_Generator_v2($this);
        return $a;
    }

    function analyzeSourceCode($file, $string = false)
    {
        if (!isset($this->_v2Validator) ||
              !is_a($this->_v2Validator, 'PEAR_PackageFile_v2_Validator')) {
            if (!class_exists('PEAR_PackageFile_v2_Validator')) {
                require_once 'PEAR/PackageFile/v2/Validator.php';
            }
            $this->_v2Validator = new PEAR_PackageFile_v2_Validator;
        }
        return $this->_v2Validator->analyzeSourceCode($file, $string);
    }

    function validate($state = PEAR_VALIDATE_NORMAL)
    {
        if (!isset($this->_packageInfo) || !is_array($this->_packageInfo)) {
            return false;
        }
        if (!isset($this->_v2Validator) ||
              !is_a($this->_v2Validator, 'PEAR_PackageFile_v2_Validator')) {
            if (!class_exists('PEAR_PackageFile_v2_Validator')) {
                require_once 'PEAR/PackageFile/v2/Validator.php';
            }
            $this->_v2Validator = new PEAR_PackageFile_v2_Validator;
        }
        if (isset($this->_packageInfo['xsdversion'])) {