channels.php

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<?php
// /* vim: set expandtab tabstop=4 shiftwidth=4: */
/**
 * PEAR_Command_Channels (list-channels, update-channels, channel-delete, channel-add,
 * channel-update, channel-info, channel-alias, channel-discover commands)
 *
 * 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 [e-mail] so we can mail you a copy immediately.
 *
 * @category   pear
 * @package    PEAR
 * @author     Stig Bakken <[e-mail]>
 * @author     Greg Beaver <[e-mail]>
 * @copyright  1997-2006 The PHP Group
 * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
 * @version    CVS: $Id: Channels.php,v 1.56 2007/06/10 04:34:19 cellog Exp $
 * @link       http://pear.php.net/package/PEAR
 * @since      File available since Release 1.4.0a1
 */

/**
 * base class
 */
require_once 'PEAR/Command/Common.php';

/**
 * PEAR commands for managing channels.
 *
 * @category   pear
 * @package    PEAR
 * @author     Greg Beaver <[e-mail]>
 * @copyright  1997-2006 The PHP Group
 * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
 * @version    Release: 1.6.1
 * @link       http://pear.php.net/package/PEAR
 * @since      Class available since Release 1.4.0a1
 */
class PEAR_Command_Channels extends PEAR_Command_Common
{
    // {{{ properties

    var $commands = array(
        'list-channels' => array(
            'summary' => 'List Available Channels',
            'function' => 'doList',
            'shortcut' => 'lc',
            'options' => array(),
            'doc' => '
List all available channels for installation.
',
            ),
        'update-channels' => array(
            'summary' => 'Update the Channel List',
            'function' => 'doUpdateAll',
            'shortcut' => 'uc',
            'options' => array(),
            'doc' => '
List all installed packages in all channels.
'
            ),
        'channel-delete' => array(
            'summary' => 'Remove a Channel From the List',
            'function' => 'doDelete',
            'shortcut' => 'cde',
            'options' => array(),
            'doc' => '<channel name>
Delete a channel from the registry.  You may not
remove any channel that has installed packages.
'
            ),
        'channel-add' => array(
            'summary' => 'Add a Channel',
            'function' => 'doAdd',
            'shortcut' => 'ca',
            'options' => array(),
            'doc' => '<channel.xml>
Add a private channel to the channel list.  Note that all
public channels should be synced using "update-channels".
Parameter may be either a local file or remote URL to a
channel.xml.
'
            ),
        'channel-update' => array(
            'summary' => 'Update an Existing Channel',
            'function' => 'doUpdate',
            'shortcut' => 'cu',
            'options' => array(
                'force' => array(
                    'shortopt' => 'f',
                    'doc' => 'will force download of new channel.xml if an existing channel name is used',
                    ),
                'channel' => array(
                    'shortopt' => 'c',
                    'arg' => 'CHANNEL',
                    'doc' => 'will force download of new channel.xml if an existing channel name is used',
                    ),
),
            'doc' => '[<channel.xml>|<channel name>]
Update a channel in the channel list directly.  Note that all
public channels can be synced using "update-channels".
Parameter may be a local or remote channel.xml, or the name of
an existing channel.
'
            ),
        'channel-info' => array(
            'summary' => 'Retrieve Information on a Channel',
            'function' => 'doInfo',
            'shortcut' => 'ci',
            'options' => array(),
            'doc' => '<package>
List the files in an installed package.
'
            ),
        'channel-alias' => array(
            'summary' => 'Specify an alias to a channel name',
            'function' => 'doAlias',
            'shortcut' => 'cha',
            'options' => array(),
            'doc' => '<channel> <alias>
Specify a specific alias to use for a channel name.
The alias may not be an existing channel name or
alias.
'
            ),
        'channel-discover' => array(
            'summary' => 'Initialize a Channel from its server',
            'function' => 'doDiscover',
            'shortcut' => 'di',
            'options' => array(),
            'doc' => '[<channel.xml>|<channel name>]
Initialize a channel from its server and create a local channel.xml.
If <channel name> is in the format "<username>:<password>@<channel>" then
<username> and <password> will be set as the login username/password for
<channel>. Use caution when passing the username/password in this way, as
it may allow other users on your computer to briefly view your username/
password via the system\'s process list.
'
            ),
        );

    // }}}
    // {{{ constructor

    /**
     * PEAR_Command_Registry constructor.
     *
     * @access public
     */
    function PEAR_Command_Channels(&$ui, &$config)
    {
        parent::PEAR_Command_Common($ui, $config);
    }

    // }}}

    // {{{ doList()
    
    function _sortChannels($a, $b)
    {
        return strnatcasecmp($a->getName(), $b->getName());
    }

    function doList($command, $options, $params)
    {
        $reg = &$this->config->getRegistry();
        $registered = $reg->getChannels();
        usort($registered, array(&$this, '_sortchannels'));
        $i = $j = 0;
        $data = array(
            'caption' => 'Registered Channels:',
            'border' => true,
            'headline' => array('Channel', 'Summary')
            );
        foreach ($registered as $channel) {
            $data['data'][] = array($channel->getName(),
                                      $channel->getSummary());
        }
        if (count($registered)==0) {
            $data = '(no registered channels)';
        }
        $this->ui->outputData($data, $command);
        return true;
    }
    
    function doUpdateAll($command, $options, $params)
    {
        $reg = &$this->config->getRegistry();
        $channels = $reg->getChannels();

        $success = true;
        foreach ($channels as $channel) {
            if ($channel->getName() != '__uri') {
                PEAR::staticPushErrorHandling(PEAR_ERROR_RETURN);
                $err = $this->doUpdate('channel-update',
                                          $options,
                                          array($channel->getName()));
                if (PEAR::isError($err)) {
                    $this->ui->outputData($err->getMessage(), $command);
                    $success = false;
                } else {
                    $success &= $err;
                }
            }
        }
        return $success;
    }
    
    function doInfo($command, $options, $params)
    {
        if (sizeof($params) != 1) {
            return $this->raiseError("No channel specified");
        }
        $reg = &$this->config->getRegistry();
        $channel = strtolower($params[0]);
        if ($reg->channelExists($channel)) {
            $chan = $reg->getChannel($channel);
            if (PEAR::isError($chan)) {
                return $this->raiseError($chan);
            }
        } else {
            if (strpos($channel, '://')) {
                $downloader = &$this->getDownloader();
                $tmpdir = $this->config->get('temp_dir');
                PEAR::staticPushErrorHandling(PEAR_ERROR_RETURN);
                $loc = $downloader->downloadHttp($channel, $this->ui, $tmpdir);
                PEAR::staticPopErrorHandling();
                if (PEAR::isError($loc)) {
                    return $this->raiseError('Cannot open "' . $channel .
                        '" (' . $loc->getMessage() . ')');
                } else {
                    $contents = implode('', file($loc));
                }
            } else {
                if (file_exists($params[0])) {
                    $fp = fopen($params[0], 'r');
                    if (!$fp) {
                        return $this->raiseError('Cannot open "' . $params[0] . '"');
                    }
                } else {
                    return $this->raiseError('Unknown channel "' . $channel . '"');
                }
                $contents = '';
                while (!feof($fp)) {
                    $contents .= fread($fp, 1024);
                }
                fclose($fp);
            }
            if (!class_exists('PEAR_ChannelFile')) {
                require_once 'PEAR/ChannelFile.php';
            }
            $chan = new PEAR_ChannelFile;
            $chan->fromXmlString($contents);
            $chan->validate();
            if ($errs = $chan->getErrors(true)) {
                foreach ($errs as $err) {
                    $this->ui->outputData($err['level'] . ': ' . $err['message']);
                }
                return $this->raiseError('Channel file "' . $params[0] . '" is not valid');
            }
        }
        if ($chan) {
            $channel = $chan->getName();
            $caption = 'Channel ' . $channel . ' Information:';
            $data1 = array(
                'caption' => $caption,
                'border' => true);
            $data1['data']['server'] = array('Name and Server', $chan->getName());
            if ($chan->getAlias() != $chan->getName()) {
                $data1['data']['alias'] = array('Alias', $chan->getAlias());
            }
            $data1['data']['summary'] = array('Summary', $chan->getSummary());
            $validate = $chan->getValidationPackage();
            $data1['data']['vpackage'] = array('Validation Package Name', $validate['_content']);
            $data1['data']['vpackageversion'] =
                array('Validation Package Version', $validate['attribs']['version']);
            $d = array();
            $d['main'] = $data1;

            $data['data'] = array();
            $data['caption'] = 'Server Capabilities';
            $data['headline'] = array('Type', 'Version/REST type', 'Function Name/REST base');
            $capabilities = $chan->getFunctions('xmlrpc');
            $soaps = $chan->getFunctions('soap');
            if ($capabilities || $soaps || $chan->supportsREST()) {
                if ($capabilities) {
                    if (!isset($capabilities[0])) {
                        $capabilities = array($capabilities);
                    }
                    foreach ($capabilities as $protocol) {
                        $data['data'][] = array('xmlrpc', $protocol['attribs']['version'],
                            $protocol['_content']);
                    }
                }
                if ($soaps) {
                    if (!isset($soaps[0])) {
                        $soaps = array($soaps);
                    }
                    foreach ($soaps as $protocol) {
                        $data['data'][] = array('soap', $protocol['attribs']['version'],
                            $protocol['_content']);
                    }
                }
                if ($chan->supportsREST()) {
                    $funcs = $chan->getFunctions('rest');
                    if (!isset($funcs[0])) {
                        $funcs = array($funcs);
                    }
                    foreach ($funcs as $protocol) {
                        $data['data'][] = array('rest', $protocol['attribs']['type'],
                            $protocol['_content']); 
                    }
                }
            } else {
                $data['data'][] = array('No supported protocols');
            }
            $d['protocols'] = $data;
            $data['data'] = array();
            $mirrors = $chan->getMirrors();
            if ($mirrors) {
                $data['caption'] = 'Channel ' . $channel . ' Mirrors:';
                unset($data['headline']);
                foreach ($mirrors as $mirror) {
                    $data['data'][] = array($mirror['attribs']['host']);
                    $d['mirrors'] = $data;
                }
                foreach ($mirrors as $i => $mirror) {
                    $data['data'] = array();
                    $data['caption'] = 'Mirror ' . $mirror['attribs']['host'] . ' Capabilities';
                    $data['headline'] = array('Type', 'Version/REST type', 'Function Name/REST base');
                    $capabilities = $chan->getFunctions('xmlrpc', $mirror['attribs']['host']);
                    $soaps = $chan->getFunctions('soap', $mirror['attribs']['host']);
                    if ($capabilities || $soaps || $chan->supportsREST($mirror['attribs']['host'])) {
                        if ($capabilities) {
                            if (!isset($capabilities[0])) {
                                $capabilities = array($capabilities);
                            }
                            foreach ($capabilities as $protocol) {
                                $data['data'][] = array('xmlrpc', $protocol['attribs']['version'],
                                    $protocol['_content']);
                            }
                        }
                        if ($soaps) {
                            if (!isset($soaps[0])) {
                                $soaps = array($soaps);
                            }
                            foreach ($soaps as $protocol) {
                                $data['data'][] = array('soap', $protocol['attribs']['version'],
                                    $protocol['_content']);
                            }
                        }
                        if ($chan->supportsREST($mirror['attribs']['host'])) {
                            $funcs = $chan->getFunctions('rest', $mirror['attribs']['host']);
                            if (!isset($funcs[0])) {
                                $funcs = array($funcs);
                            }
                            foreach ($funcs as $protocol) {
                                $data['data'][] = array('rest', $protocol['attribs']['type'],
                                    $protocol['_content']); 
                            }
                        }
                    } else {
                        $data['data'][] = array('No supported protocols');
                    }
                    $d['mirrorprotocols' . $i] = $data;