function doUpdate($command, $options, $params)
{
$tmpdir = $this->config->get('temp_dir');
if (!file_exists($tmpdir)) {
require_once 'System.php';
PEAR::staticPushErrorHandling(PEAR_ERROR_RETURN);
$err = System::mkdir(array('-p', $tmpdir));
PEAR::staticPopErrorHandling();
if (PEAR::isError($err)) {
return $this->raiseError('channel-add: temp_dir does not exist: "' . $tmpdir . '" - You can change this location with "pear config-set temp_dir"');
}
}
if (!is_writable($tmpdir)) {
return $this->raiseError('channel-add: temp_dir is not writable: "' . $tmpdir . '" - You can change this location with "pear config-set temp_dir"');
}
$reg =& $this->config->getRegistry();
if (sizeof($params) != 1) {
return $this->raiseError("No channel file specified");
}
$lastmodified = false;
if ((!file_exists($params[0]) || is_dir($params[0])) && $reg->channelExists(strtolower($params[0]))) {
$c = $reg->getChannel(strtolower($params[0]));
if (PEAR::isError($c)) {
return $this->raiseError($c);
}
$this->ui->outputData("Updating channel \"{$params['0']}\"", $command);
$dl =& $this->getDownloader(array());
// if force is specified, use a timestamp of "1" to force retrieval
$lastmodified = isset($options['force']) ? false : $c->lastModified();
PEAR::staticPushErrorHandling(PEAR_ERROR_RETURN);
$contents = $dl->downloadHttp('http://' . $c->getName() . '/channel.xml', $this->ui, $tmpdir, null, $lastmodified);
PEAR::staticPopErrorHandling();
if (PEAR::isError($contents)) {
return $this->raiseError('Cannot retrieve channel.xml for channel "' . $c->getName() . '" (' . $contents->getMessage() . ')');
}
list($contents, $lastmodified) = $contents;
if (!$contents) {
$this->ui->outputData("Channel \"{$params['0']}\" is up to date");
return;
}
$contents = implode('', file($contents));
if (!class_exists('PEAR_ChannelFile')) {
require_once 'PEAR/ChannelFile.php';
}
$channel = new PEAR_ChannelFile();
$channel->fromXmlString($contents);
if (!$channel->getErrors()) {
// security check: is the downloaded file for the channel we got it from?
if (strtolower($channel->getName()) != strtolower($c->getName())) {
if (isset($options['force'])) {
$this->ui->log(0, 'WARNING: downloaded channel definition file' . ' for channel "' . $channel->getName() . '" from channel "' . strtolower($c->getName()) . '"');
} else {
return $this->raiseError('ERROR: downloaded channel definition file' . ' for channel "' . $channel->getName() . '" from channel "' . strtolower($c->getName()) . '"');
}
}
}
} else {
if (strpos($params[0], '://')) {
$dl =& $this->getDownloader();
PEAR::staticPushErrorHandling(PEAR_ERROR_RETURN);
$loc = $dl->downloadHttp($params[0], $this->ui, $tmpdir, null, $lastmodified);
PEAR::staticPopErrorHandling();
if (PEAR::isError($loc)) {
return $this->raiseError("Cannot open " . $params[0] . ' (' . $loc->getMessage() . ')');
} else {
list($loc, $lastmodified) = $loc;
$contents = implode('', file($loc));
}
} else {
$fp = false;
if (file_exists($params[0])) {
$fp = fopen($params[0], 'r');
}
if (!$fp) {
return $this->raiseError("Cannot open " . $params[0]);
}
$contents = '';
while (!feof($fp)) {
$contents .= fread($fp, 1024);
}
fclose($fp);
}
if (!class_exists('PEAR_ChannelFile')) {
require_once 'PEAR/ChannelFile.php';
}
$channel = new PEAR_ChannelFile();
$channel->fromXmlString($contents);
}
$exit = false;
if (count($errors = $channel->getErrors(true))) {
foreach ($errors as $error) {
$this->ui->outputData(ucfirst($error['level'] . ': ' . $error['message']));
if (!$exit) {
$exit = $error['level'] == 'error' ? true : false;
}
}
if ($exit) {
return $this->raiseError('Invalid channel.xml file');
}
}
if (!$reg->channelExists($channel->getName())) {
return $this->raiseError('Error: Channel "' . $channel->getName() . '" does not exist, use channel-add to add an entry');
}
$ret = $reg->updateChannel($channel, $lastmodified);
if (PEAR::isError($ret)) {
return $ret;
}
if (!$ret) {
return $this->raiseError('Updating Channel "' . $channel->getName() . '" in registry failed');
}
$this->config->setChannels($reg->listChannels());
$this->config->writeConfigFile();
$this->ui->outputData('Update of Channel "' . $channel->getName() . '" succeeded');
}
