--- /dev/null
+<?php
+/**
+ * PEAR_Downloader, the PEAR Installer's download utility class
+ *
+ * PHP versions 4 and 5
+ *
+ * @category pear
+ * @package PEAR
+ * @author Greg Beaver <cellog@php.net>
+ * @author Stig Bakken <ssb@php.net>
+ * @author Tomas V. V. Cox <cox@idecnet.com>
+ * @author Martin Jansen <mj@php.net>
+ * @copyright 1997-2009 The Authors
+ * @license http://opensource.org/licenses/bsd-license.php New BSD License
+ * @version CVS: $Id: Downloader.php 313024 2011-07-06 19:51:24Z dufuz $
+ * @link http://pear.php.net/package/PEAR
+ * @since File available since Release 1.3.0
+ */
+
+/**
+ * Needed for constants, extending
+ */
+require_once 'PEAR/Common.php';
+
+define('PEAR_INSTALLER_OK', 1);
+define('PEAR_INSTALLER_FAILED', 0);
+define('PEAR_INSTALLER_SKIPPED', -1);
+define('PEAR_INSTALLER_ERROR_NO_PREF_STATE', 2);
+
+/**
+ * Administration class used to download anything from the internet (PEAR Packages,
+ * static URLs, xml files)
+ *
+ * @category pear
+ * @package PEAR
+ * @author Greg Beaver <cellog@php.net>
+ * @author Stig Bakken <ssb@php.net>
+ * @author Tomas V. V. Cox <cox@idecnet.com>
+ * @author Martin Jansen <mj@php.net>
+ * @copyright 1997-2009 The Authors
+ * @license http://opensource.org/licenses/bsd-license.php New BSD License
+ * @version Release: 1.9.4
+ * @link http://pear.php.net/package/PEAR
+ * @since Class available since Release 1.3.0
+ */
+class PEAR_Downloader extends PEAR_Common
+{
+ /**
+ * @var PEAR_Registry
+ * @access private
+ */
+ var $_registry;
+
+ /**
+ * Preferred Installation State (snapshot, devel, alpha, beta, stable)
+ * @var string|null
+ * @access private
+ */
+ var $_preferredState;
+
+ /**
+ * Options from command-line passed to Install.
+ *
+ * Recognized options:<br />
+ * - onlyreqdeps : install all required dependencies as well
+ * - alldeps : install all dependencies, including optional
+ * - installroot : base relative path to install files in
+ * - force : force a download even if warnings would prevent it
+ * - nocompress : download uncompressed tarballs
+ * @see PEAR_Command_Install
+ * @access private
+ * @var array
+ */
+ var $_options;
+
+ /**
+ * Downloaded Packages after a call to download().
+ *
+ * Format of each entry:
+ *
+ * <code>
+ * array('pkg' => 'package_name', 'file' => '/path/to/local/file',
+ * 'info' => array() // parsed package.xml
+ * );
+ * </code>
+ * @access private
+ * @var array
+ */
+ var $_downloadedPackages = array();
+
+ /**
+ * Packages slated for download.
+ *
+ * This is used to prevent downloading a package more than once should it be a dependency
+ * for two packages to be installed.
+ * Format of each entry:
+ *
+ * <pre>
+ * array('package_name1' => parsed package.xml, 'package_name2' => parsed package.xml,
+ * );
+ * </pre>
+ * @access private
+ * @var array
+ */
+ var $_toDownload = array();
+
+ /**
+ * Array of every package installed, with names lower-cased.
+ *
+ * Format:
+ * <code>
+ * array('package1' => 0, 'package2' => 1, );
+ * </code>
+ * @var array
+ */
+ var $_installed = array();
+
+ /**
+ * @var array
+ * @access private
+ */
+ var $_errorStack = array();
+
+ /**
+ * @var boolean
+ * @access private
+ */
+ var $_internalDownload = false;
+
+ /**
+ * Temporary variable used in sorting packages by dependency in {@link sortPkgDeps()}
+ * @var array
+ * @access private
+ */
+ var $_packageSortTree;
+
+ /**
+ * Temporary directory, or configuration value where downloads will occur
+ * @var string
+ */
+ var $_downloadDir;
+
+ /**
+ * @param PEAR_Frontend_*
+ * @param array
+ * @param PEAR_Config
+ */
+ function PEAR_Downloader(&$ui, $options, &$config)
+ {
+ parent::PEAR_Common();
+ $this->_options = $options;
+ $this->config = &$config;
+ $this->_preferredState = $this->config->get('preferred_state');
+ $this->ui = &$ui;
+ if (!$this->_preferredState) {
+ // don't inadvertantly use a non-set preferred_state
+ $this->_preferredState = null;
+ }
+
+ if (isset($this->_options['installroot'])) {
+ $this->config->setInstallRoot($this->_options['installroot']);
+ }
+ $this->_registry = &$config->getRegistry();
+
+ if (isset($this->_options['alldeps']) || isset($this->_options['onlyreqdeps'])) {
+ $this->_installed = $this->_registry->listAllPackages();
+ foreach ($this->_installed as $key => $unused) {
+ if (!count($unused)) {
+ continue;
+ }
+ $strtolower = create_function('$a','return strtolower($a);');
+ array_walk($this->_installed[$key], $strtolower);
+ }
+ }
+ }
+
+ /**
+ * Attempt to discover a channel's remote capabilities from
+ * its server name
+ * @param string
+ * @return boolean
+ */
+ function discover($channel)
+ {
+ $this->log(1, 'Attempting to discover channel "' . $channel . '"...');
+ PEAR::pushErrorHandling(PEAR_ERROR_RETURN);
+ $callback = $this->ui ? array(&$this, '_downloadCallback') : null;
+ if (!class_exists('System')) {
+ require_once 'System.php';
+ }
+
+ $tmpdir = $this->config->get('temp_dir');
+ $tmp = System::mktemp('-d -t "' . $tmpdir . '"');
+ $a = $this->downloadHttp('http://' . $channel . '/channel.xml', $this->ui, $tmp, $callback, false);
+ PEAR::popErrorHandling();
+ if (PEAR::isError($a)) {
+ // Attempt to fallback to https automatically.
+ PEAR::pushErrorHandling(PEAR_ERROR_RETURN);
+ $this->log(1, 'Attempting fallback to https instead of http on channel "' . $channel . '"...');
+ $a = $this->downloadHttp('https://' . $channel . '/channel.xml', $this->ui, $tmp, $callback, false);
+ PEAR::popErrorHandling();
+ if (PEAR::isError($a)) {
+ return false;
+ }
+ }
+
+ list($a, $lastmodified) = $a;
+ if (!class_exists('PEAR_ChannelFile')) {
+ require_once 'PEAR/ChannelFile.php';
+ }
+
+ $b = new PEAR_ChannelFile;
+ if ($b->fromXmlFile($a)) {
+ unlink($a);
+ if ($this->config->get('auto_discover')) {
+ $this->_registry->addChannel($b, $lastmodified);
+ $alias = $b->getName();
+ if ($b->getName() == $this->_registry->channelName($b->getAlias())) {
+ $alias = $b->getAlias();
+ }
+
+ $this->log(1, 'Auto-discovered channel "' . $channel .
+ '", alias "' . $alias . '", adding to registry');
+ }
+
+ return true;
+ }
+
+ unlink($a);
+ return false;
+ }
+
+ /**
+ * For simpler unit-testing
+ * @param PEAR_Downloader
+ * @return PEAR_Downloader_Package
+ */
+ function &newDownloaderPackage(&$t)
+ {
+ if (!class_exists('PEAR_Downloader_Package')) {
+ require_once 'PEAR/Downloader/Package.php';
+ }
+ $a = &new PEAR_Downloader_Package($t);
+ return $a;
+ }
+
+ /**
+ * For simpler unit-testing
+ * @param PEAR_Config
+ * @param array
+ * @param array
+ * @param int
+ */
+ function &getDependency2Object(&$c, $i, $p, $s)
+ {
+ if (!class_exists('PEAR_Dependency2')) {
+ require_once 'PEAR/Dependency2.php';
+ }
+ $z = &new PEAR_Dependency2($c, $i, $p, $s);
+ return $z;
+ }
+
+ function &download($params)
+ {
+ if (!count($params)) {
+ $a = array();
+ return $a;
+ }
+
+ if (!isset($this->_registry)) {
+ $this->_registry = &$this->config->getRegistry();
+ }
+
+ $channelschecked = array();
+ // convert all parameters into PEAR_Downloader_Package objects
+ foreach ($params as $i => $param) {
+ $params[$i] = &$this->newDownloaderPackage($this);
+ PEAR::staticPushErrorHandling(PEAR_ERROR_RETURN);
+ $err = $params[$i]->initialize($param);
+ PEAR::staticPopErrorHandling();
+ if (!$err) {
+ // skip parameters that were missed by preferred_state
+ continue;
+ }
+
+ if (PEAR::isError($err)) {
+ if (!isset($this->_options['soft']) && $err->getMessage() !== '') {
+ $this->log(0, $err->getMessage());
+ }
+
+ $params[$i] = false;
+ if (is_object($param)) {
+ $param = $param->getChannel() . '/' . $param->getPackage();
+ }
+
+ if (!isset($this->_options['soft'])) {
+ $this->log(2, 'Package "' . $param . '" is not valid');
+ }
+
+ // Message logged above in a specific verbose mode, passing null to not show up on CLI
+ $this->pushError(null, PEAR_INSTALLER_SKIPPED);
+ } else {
+ do {
+ if ($params[$i] && $params[$i]->getType() == 'local') {
+ // bug #7090 skip channel.xml check for local packages
+ break;
+ }
+
+ if ($params[$i] && !isset($channelschecked[$params[$i]->getChannel()]) &&
+ !isset($this->_options['offline'])
+ ) {
+ $channelschecked[$params[$i]->getChannel()] = true;
+ PEAR::staticPushErrorHandling(PEAR_ERROR_RETURN);
+ if (!class_exists('System')) {
+ require_once 'System.php';
+ }
+
+ $curchannel = &$this->_registry->getChannel($params[$i]->getChannel());
+ if (PEAR::isError($curchannel)) {
+ PEAR::staticPopErrorHandling();
+ return $this->raiseError($curchannel);
+ }
+
+ if (PEAR::isError($dir = $this->getDownloadDir())) {
+ PEAR::staticPopErrorHandling();
+ break;
+ }
+
+ $mirror = $this->config->get('preferred_mirror', null, $params[$i]->getChannel());
+ $url = 'http://' . $mirror . '/channel.xml';
+ $a = $this->downloadHttp($url, $this->ui, $dir, null, $curchannel->lastModified());
+
+ PEAR::staticPopErrorHandling();
+ if (PEAR::isError($a) || !$a) {
+ // Attempt fallback to https automatically
+ PEAR::pushErrorHandling(PEAR_ERROR_RETURN);
+ $a = $this->downloadHttp('https://' . $mirror .
+ '/channel.xml', $this->ui, $dir, null, $curchannel->lastModified());
+
+ PEAR::staticPopErrorHandling();
+ if (PEAR::isError($a) || !$a) {
+ break;
+ }
+ }
+ $this->log(0, 'WARNING: channel "' . $params[$i]->getChannel() . '" has ' .
+ 'updated its protocols, use "' . PEAR_RUNTYPE . ' channel-update ' . $params[$i]->getChannel() .
+ '" to update');
+ }
+ } while (false);
+
+ if ($params[$i] && !isset($this->_options['downloadonly'])) {
+ if (isset($this->_options['packagingroot'])) {
+ $checkdir = $this->_prependPath(
+ $this->config->get('php_dir', null, $params[$i]->getChannel()),
+ $this->_options['packagingroot']);
+ } else {
+ $checkdir = $this->config->get('php_dir',
+ null, $params[$i]->getChannel());
+ }
+
+ while ($checkdir && $checkdir != '/' && !file_exists($checkdir)) {
+ $checkdir = dirname($checkdir);
+ }
+
+ if ($checkdir == '.') {
+ $checkdir = '/';
+ }
+
+ if (!is_writeable($checkdir)) {
+ return PEAR::raiseError('Cannot install, php_dir for channel "' .
+ $params[$i]->getChannel() . '" is not writeable by the current user');
+ }
+ }
+ }
+ }
+
+ unset($channelschecked);
+ PEAR_Downloader_Package::removeDuplicates($params);
+ if (!count($params)) {
+ $a = array();
+ return $a;
+ }
+
+ if (!isset($this->_options['nodeps']) && !isset($this->_options['offline'])) {
+ $reverify = true;
+ while ($reverify) {
+ $reverify = false;
+ foreach ($params as $i => $param) {
+ //PHP Bug 40768 / PEAR Bug #10944
+ //Nested foreaches fail in PHP 5.2.1
+ key($params);
+ $ret = $params[$i]->detectDependencies($params);
+ if (PEAR::isError($ret)) {
+ $reverify = true;
+ $params[$i] = false;
+ PEAR_Downloader_Package::removeDuplicates($params);
+ if (!isset($this->_options['soft'])) {
+ $this->log(0, $ret->getMessage());
+ }
+ continue 2;
+ }
+ }
+ }
+ }
+
+ if (isset($this->_options['offline'])) {
+ $this->log(3, 'Skipping dependency download check, --offline specified');
+ }
+
+ if (!count($params)) {
+ $a = array();
+ return $a;
+ }
+
+ while (PEAR_Downloader_Package::mergeDependencies($params));
+ PEAR_Downloader_Package::removeDuplicates($params, true);
+ $errorparams = array();
+ if (PEAR_Downloader_Package::detectStupidDuplicates($params, $errorparams)) {
+ if (count($errorparams)) {
+ foreach ($errorparams as $param) {
+ $name = $this->_registry->parsedPackageNameToString($param->getParsedPackage());
+ $this->pushError('Duplicate package ' . $name . ' found', PEAR_INSTALLER_FAILED);
+ }
+ $a = array();
+ return $a;
+ }
+ }
+
+ PEAR_Downloader_Package::removeInstalled($params);
+ if (!count($params)) {
+ $this->pushError('No valid packages found', PEAR_INSTALLER_FAILED);
+ $a = array();
+ return $a;
+ }
+
+ PEAR::pushErrorHandling(PEAR_ERROR_RETURN);
+ $err = $this->analyzeDependencies($params);
+ PEAR::popErrorHandling();
+ if (!count($params)) {
+ $this->pushError('No valid packages found', PEAR_INSTALLER_FAILED);
+ $a = array();
+ return $a;
+ }
+
+ $ret = array();
+ $newparams = array();
+ if (isset($this->_options['pretend'])) {
+ return $params;
+ }
+
+ $somefailed = false;
+ foreach ($params as $i => $package) {
+ PEAR::staticPushErrorHandling(PEAR_ERROR_RETURN);
+ $pf = &$params[$i]->download();
+ PEAR::staticPopErrorHandling();
+ if (PEAR::isError($pf)) {
+ if (!isset($this->_options['soft'])) {
+ $this->log(1, $pf->getMessage());
+ $this->log(0, 'Error: cannot download "' .
+ $this->_registry->parsedPackageNameToString($package->getParsedPackage(),
+ true) .
+ '"');
+ }
+ $somefailed = true;
+ continue;
+ }
+
+ $newparams[] = &$params[$i];
+ $ret[] = array(
+ 'file' => $pf->getArchiveFile(),
+ 'info' => &$pf,
+ 'pkg' => $pf->getPackage()
+ );
+ }
+
+ if ($somefailed) {
+ // remove params that did not download successfully
+ PEAR::pushErrorHandling(PEAR_ERROR_RETURN);
+ $err = $this->analyzeDependencies($newparams, true);
+ PEAR::popErrorHandling();
+ if (!count($newparams)) {
+ $this->pushError('Download failed', PEAR_INSTALLER_FAILED);
+ $a = array();
+ return $a;
+ }
+ }
+
+ $this->_downloadedPackages = $ret;
+ return $newparams;
+ }
+
+ /**
+ * @param array all packages to be installed
+ */
+ function analyzeDependencies(&$params, $force = false)
+ {
+ if (isset($this->_options['downloadonly'])) {
+ return;
+ }
+
+ PEAR::staticPushErrorHandling(PEAR_ERROR_RETURN);
+ $redo = true;
+ $reset = $hasfailed = $failed = false;
+ while ($redo) {
+ $redo = false;
+ foreach ($params as $i => $param) {
+ $deps = $param->getDeps();
+ if (!$deps) {
+ $depchecker = &$this->getDependency2Object($this->config, $this->getOptions(),
+ $param->getParsedPackage(), PEAR_VALIDATE_DOWNLOADING);
+ $send = $param->getPackageFile();
+
+ $installcheck = $depchecker->validatePackage($send, $this, $params);
+ if (PEAR::isError($installcheck)) {
+ if (!isset($this->_options['soft'])) {
+ $this->log(0, $installcheck->getMessage());
+ }
+ $hasfailed = true;
+ $params[$i] = false;
+ $reset = true;
+ $redo = true;
+ $failed = false;
+ PEAR_Downloader_Package::removeDuplicates($params);
+ continue 2;
+ }
+ continue;
+ }
+
+ if (!$reset && $param->alreadyValidated() && !$force) {
+ continue;
+ }
+
+ if (count($deps)) {
+ $depchecker = &$this->getDependency2Object($this->config, $this->getOptions(),
+ $param->getParsedPackage(), PEAR_VALIDATE_DOWNLOADING);
+ $send = $param->getPackageFile();
+ if ($send === null) {
+ $send = $param->getDownloadURL();
+ }
+
+ $installcheck = $depchecker->validatePackage($send, $this, $params);
+ if (PEAR::isError($installcheck)) {
+ if (!isset($this->_options['soft'])) {
+ $this->log(0, $installcheck->getMessage());
+ }
+ $hasfailed = true;
+ $params[$i] = false;
+ $reset = true;
+ $redo = true;
+ $failed = false;
+ PEAR_Downloader_Package::removeDuplicates($params);
+ continue 2;
+ }
+
+ $failed = false;
+ if (isset($deps['required']) && is_array($deps['required'])) {
+ foreach ($deps['required'] as $type => $dep) {
+ // note: Dependency2 will never return a PEAR_Error if ignore-errors
+ // is specified, so soft is needed to turn off logging
+ if (!isset($dep[0])) {
+ if (PEAR::isError($e = $depchecker->{"validate{$type}Dependency"}($dep,
+ true, $params))) {
+ $failed = true;
+ if (!isset($this->_options['soft'])) {
+ $this->log(0, $e->getMessage());
+ }
+ } elseif (is_array($e) && !$param->alreadyValidated()) {
+ if (!isset($this->_options['soft'])) {
+ $this->log(0, $e[0]);
+ }
+ }
+ } else {
+ foreach ($dep as $d) {
+ if (PEAR::isError($e =
+ $depchecker->{"validate{$type}Dependency"}($d,
+ true, $params))) {
+ $failed = true;
+ if (!isset($this->_options['soft'])) {
+ $this->log(0, $e->getMessage());
+ }
+ } elseif (is_array($e) && !$param->alreadyValidated()) {
+ if (!isset($this->_options['soft'])) {
+ $this->log(0, $e[0]);
+ }
+ }
+ }
+ }
+ }
+
+ if (isset($deps['optional']) && is_array($deps['optional'])) {
+ foreach ($deps['optional'] as $type => $dep) {
+ if (!isset($dep[0])) {
+ if (PEAR::isError($e =
+ $depchecker->{"validate{$type}Dependency"}($dep,
+ false, $params))) {
+ $failed = true;
+ if (!isset($this->_options['soft'])) {
+ $this->log(0, $e->getMessage());
+ }
+ } elseif (is_array($e) && !$param->alreadyValidated()) {
+ if (!isset($this->_options['soft'])) {
+ $this->log(0, $e[0]);
+ }
+ }
+ } else {
+ foreach ($dep as $d) {
+ if (PEAR::isError($e =
+ $depchecker->{"validate{$type}Dependency"}($d,
+ false, $params))) {
+ $failed = true;
+ if (!isset($this->_options['soft'])) {
+ $this->log(0, $e->getMessage());
+ }
+ } elseif (is_array($e) && !$param->alreadyValidated()) {
+ if (!isset($this->_options['soft'])) {
+ $this->log(0, $e[0]);
+ }
+ }
+ }
+ }
+ }
+ }
+
+ $groupname = $param->getGroup();
+ if (isset($deps['group']) && $groupname) {
+ if (!isset($deps['group'][0])) {
+ $deps['group'] = array($deps['group']);
+ }
+
+ $found = false;
+ foreach ($deps['group'] as $group) {
+ if ($group['attribs']['name'] == $groupname) {
+ $found = true;
+ break;
+ }
+ }
+
+ if ($found) {
+ unset($group['attribs']);
+ foreach ($group as $type => $dep) {
+ if (!isset($dep[0])) {
+ if (PEAR::isError($e =
+ $depchecker->{"validate{$type}Dependency"}($dep,
+ false, $params))) {
+ $failed = true;
+ if (!isset($this->_options['soft'])) {
+ $this->log(0, $e->getMessage());
+ }
+ } elseif (is_array($e) && !$param->alreadyValidated()) {
+ if (!isset($this->_options['soft'])) {
+ $this->log(0, $e[0]);
+ }
+ }
+ } else {
+ foreach ($dep as $d) {
+ if (PEAR::isError($e =
+ $depchecker->{"validate{$type}Dependency"}($d,
+ false, $params))) {
+ $failed = true;
+ if (!isset($this->_options['soft'])) {
+ $this->log(0, $e->getMessage());
+ }
+ } elseif (is_array($e) && !$param->alreadyValidated()) {
+ if (!isset($this->_options['soft'])) {
+ $this->log(0, $e[0]);
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ } else {
+ foreach ($deps as $dep) {
+ if (PEAR::isError($e = $depchecker->validateDependency1($dep, $params))) {
+ $failed = true;
+ if (!isset($this->_options['soft'])) {
+ $this->log(0, $e->getMessage());
+ }
+ } elseif (is_array($e) && !$param->alreadyValidated()) {
+ if (!isset($this->_options['soft'])) {
+ $this->log(0, $e[0]);
+ }
+ }
+ }
+ }
+ $params[$i]->setValidated();
+ }
+
+ if ($failed) {
+ $hasfailed = true;
+ $params[$i] = false;
+ $reset = true;
+ $redo = true;
+ $failed = false;
+ PEAR_Downloader_Package::removeDuplicates($params);
+ continue 2;
+ }
+ }
+ }
+
+ PEAR::staticPopErrorHandling();
+ if ($hasfailed && (isset($this->_options['ignore-errors']) ||
+ isset($this->_options['nodeps']))) {
+ // this is probably not needed, but just in case
+ if (!isset($this->_options['soft'])) {
+ $this->log(0, 'WARNING: dependencies failed');
+ }
+ }
+ }
+
+ /**
+ * Retrieve the directory that downloads will happen in
+ * @access private
+ * @return string
+ */
+ function getDownloadDir()
+ {
+ if (isset($this->_downloadDir)) {
+ return $this->_downloadDir;
+ }
+
+ $downloaddir = $this->config->get('download_dir');
+ if (empty($downloaddir) || (is_dir($downloaddir) && !is_writable($downloaddir))) {
+ if (is_dir($downloaddir) && !is_writable($downloaddir)) {
+ $this->log(0, 'WARNING: configuration download directory "' . $downloaddir .
+ '" is not writeable. Change download_dir config variable to ' .
+ 'a writeable dir to avoid this warning');
+ }
+
+ if (!class_exists('System')) {
+ require_once 'System.php';
+ }
+
+ if (PEAR::isError($downloaddir = System::mktemp('-d'))) {
+ return $downloaddir;
+ }
+ $this->log(3, '+ tmp dir created at ' . $downloaddir);
+ }
+
+ if (!is_writable($downloaddir)) {
+ if (PEAR::isError(System::mkdir(array('-p', $downloaddir))) ||
+ !is_writable($downloaddir)) {
+ return PEAR::raiseError('download directory "' . $downloaddir .
+ '" is not writeable. Change download_dir config variable to ' .
+ 'a writeable dir');
+ }
+ }
+
+ return $this->_downloadDir = $downloaddir;
+ }
+
+ function setDownloadDir($dir)
+ {
+ if (!@is_writable($dir)) {
+ if (PEAR::isError(System::mkdir(array('-p', $dir)))) {
+ return PEAR::raiseError('download directory "' . $dir .
+ '" is not writeable. Change download_dir config variable to ' .
+ 'a writeable dir');
+ }
+ }
+ $this->_downloadDir = $dir;
+ }
+
+ function configSet($key, $value, $layer = 'user', $channel = false)
+ {
+ $this->config->set($key, $value, $layer, $channel);
+ $this->_preferredState = $this->config->get('preferred_state', null, $channel);
+ if (!$this->_preferredState) {
+ // don't inadvertantly use a non-set preferred_state
+ $this->_preferredState = null;
+ }
+ }
+
+ function setOptions($options)
+ {
+ $this->_options = $options;
+ }
+
+ function getOptions()
+ {
+ return $this->_options;
+ }
+
+
+ /**
+ * @param array output of {@link parsePackageName()}
+ * @access private
+ */
+ function _getPackageDownloadUrl($parr)
+ {
+ $curchannel = $this->config->get('default_channel');
+ $this->configSet('default_channel', $parr['channel']);
+ // getDownloadURL returns an array. On error, it only contains information
+ // on the latest release as array(version, info). On success it contains
+ // array(version, info, download url string)
+ $state = isset($parr['state']) ? $parr['state'] : $this->config->get('preferred_state');
+ if (!$this->_registry->channelExists($parr['channel'])) {
+ do {
+ if ($this->config->get('auto_discover') && $this->discover($parr['channel'])) {
+ break;
+ }
+
+ $this->configSet('default_channel', $curchannel);
+ return PEAR::raiseError('Unknown remote channel: ' . $parr['channel']);
+ } while (false);
+ }
+
+ $chan = &$this->_registry->getChannel($parr['channel']);
+ if (PEAR::isError($chan)) {
+ return $chan;
+ }
+
+ PEAR::staticPushErrorHandling(PEAR_ERROR_RETURN);
+ $version = $this->_registry->packageInfo($parr['package'], 'version', $parr['channel']);
+ $stability = $this->_registry->packageInfo($parr['package'], 'stability', $parr['channel']);
+ // package is installed - use the installed release stability level
+ if (!isset($parr['state']) && $stability !== null) {
+ $state = $stability['release'];
+ }
+ PEAR::staticPopErrorHandling();
+ $base2 = false;
+
+ $preferred_mirror = $this->config->get('preferred_mirror');
+ if (!$chan->supportsREST($preferred_mirror) ||
+ (
+ !($base2 = $chan->getBaseURL('REST1.3', $preferred_mirror))
+ &&
+ !($base = $chan->getBaseURL('REST1.0', $preferred_mirror))
+ )
+ ) {
+ return $this->raiseError($parr['channel'] . ' is using a unsupported protocol - This should never happen.');
+ }
+
+ if ($base2) {
+ $rest = &$this->config->getREST('1.3', $this->_options);
+ $base = $base2;
+ } else {
+ $rest = &$this->config->getREST('1.0', $this->_options);
+ }
+
+ $downloadVersion = false;
+ if (!isset($parr['version']) && !isset($parr['state']) && $version
+ && !PEAR::isError($version)
+ && !isset($this->_options['downloadonly'])
+ ) {
+ $downloadVersion = $version;
+ }
+
+ $url = $rest->getDownloadURL($base, $parr, $state, $downloadVersion, $chan->getName());
+ if (PEAR::isError($url)) {
+ $this->configSet('default_channel', $curchannel);
+ return $url;
+ }
+
+ if ($parr['channel'] != $curchannel) {
+ $this->configSet('default_channel', $curchannel);
+ }
+
+ if (!is_array($url)) {
+ return $url;
+ }
+
+ $url['raw'] = false; // no checking is necessary for REST
+ if (!is_array($url['info'])) {
+ return PEAR::raiseError('Invalid remote dependencies retrieved from REST - ' .
+ 'this should never happen');
+ }
+
+ if (!isset($this->_options['force']) &&
+ !isset($this->_options['downloadonly']) &&
+ $version &&
+ !PEAR::isError($version) &&
+ !isset($parr['group'])
+ ) {
+ if (version_compare($version, $url['version'], '=')) {
+ return PEAR::raiseError($this->_registry->parsedPackageNameToString(
+ $parr, true) . ' is already installed and is the same as the ' .
+ 'released version ' . $url['version'], -976);
+ }
+
+ if (version_compare($version, $url['version'], '>')) {
+ return PEAR::raiseError($this->_registry->parsedPackageNameToString(
+ $parr, true) . ' is already installed and is newer than detected ' .
+ 'released version ' . $url['version'], -976);
+ }
+ }
+
+ if (isset($url['info']['required']) || $url['compatible']) {
+ require_once 'PEAR/PackageFile/v2.php';
+ $pf = new PEAR_PackageFile_v2;
+ $pf->setRawChannel($parr['channel']);
+ if ($url['compatible']) {
+ $pf->setRawCompatible($url['compatible']);
+ }
+ } else {
+ require_once 'PEAR/PackageFile/v1.php';
+ $pf = new PEAR_PackageFile_v1;
+ }
+
+ $pf->setRawPackage($url['package']);
+ $pf->setDeps($url['info']);
+ if ($url['compatible']) {
+ $pf->setCompatible($url['compatible']);
+ }
+
+ $pf->setRawState($url['stability']);
+ $url['info'] = &$pf;
+ if (!extension_loaded("zlib") || isset($this->_options['nocompress'])) {
+ $ext = '.tar';
+ } else {
+ $ext = '.tgz';
+ }
+
+ if (is_array($url) && isset($url['url'])) {
+ $url['url'] .= $ext;
+ }
+
+ return $url;
+ }
+
+ /**
+ * @param array dependency array
+ * @access private
+ */
+ function _getDepPackageDownloadUrl($dep, $parr)
+ {
+ $xsdversion = isset($dep['rel']) ? '1.0' : '2.0';
+ $curchannel = $this->config->get('default_channel');
+ if (isset($dep['uri'])) {
+ $xsdversion = '2.0';
+ $chan = &$this->_registry->getChannel('__uri');
+ if (PEAR::isError($chan)) {
+ return $chan;
+ }
+
+ $version = $this->_registry->packageInfo($dep['name'], 'version', '__uri');
+ $this->configSet('default_channel', '__uri');
+ } else {
+ if (isset($dep['channel'])) {
+ $remotechannel = $dep['channel'];
+ } else {
+ $remotechannel = 'pear.php.net';
+ }
+
+ if (!$this->_registry->channelExists($remotechannel)) {
+ do {
+ if ($this->config->get('auto_discover')) {
+ if ($this->discover($remotechannel)) {
+ break;
+ }
+ }
+ return PEAR::raiseError('Unknown remote channel: ' . $remotechannel);
+ } while (false);
+ }
+
+ $chan = &$this->_registry->getChannel($remotechannel);
+ if (PEAR::isError($chan)) {
+ return $chan;
+ }
+
+ $version = $this->_registry->packageInfo($dep['name'], 'version', $remotechannel);
+ $this->configSet('default_channel', $remotechannel);
+ }
+
+ $state = isset($parr['state']) ? $parr['state'] : $this->config->get('preferred_state');
+ if (isset($parr['state']) && isset($parr['version'])) {
+ unset($parr['state']);
+ }
+
+ if (isset($dep['uri'])) {
+ $info = &$this->newDownloaderPackage($this);
+ PEAR::staticPushErrorHandling(PEAR_ERROR_RETURN);
+ $err = $info->initialize($dep);
+ PEAR::staticPopErrorHandling();
+ if (!$err) {
+ // skip parameters that were missed by preferred_state
+ return PEAR::raiseError('Cannot initialize dependency');
+ }
+
+ if (PEAR::isError($err)) {
+ if (!isset($this->_options['soft'])) {
+ $this->log(0, $err->getMessage());
+ }
+
+ if (is_object($info)) {
+ $param = $info->getChannel() . '/' . $info->getPackage();
+ }
+ return PEAR::raiseError('Package "' . $param . '" is not valid');
+ }
+ return $info;
+ } elseif ($chan->supportsREST($this->config->get('preferred_mirror'))
+ &&
+ (
+ ($base2 = $chan->getBaseURL('REST1.3', $this->config->get('preferred_mirror')))
+ ||
+ ($base = $chan->getBaseURL('REST1.0', $this->config->get('preferred_mirror')))
+ )
+ ) {
+ if ($base2) {
+ $base = $base2;
+ $rest = &$this->config->getREST('1.3', $this->_options);
+ } else {
+ $rest = &$this->config->getREST('1.0', $this->_options);
+ }
+
+ $url = $rest->getDepDownloadURL($base, $xsdversion, $dep, $parr,
+ $state, $version, $chan->getName());
+ if (PEAR::isError($url)) {
+ return $url;
+ }
+
+ if ($parr['channel'] != $curchannel) {
+ $this->configSet('default_channel', $curchannel);
+ }
+
+ if (!is_array($url)) {
+ return $url;
+ }
+
+ $url['raw'] = false; // no checking is necessary for REST
+ if (!is_array($url['info'])) {
+ return PEAR::raiseError('Invalid remote dependencies retrieved from REST - ' .
+ 'this should never happen');
+ }
+
+ if (isset($url['info']['required'])) {
+ if (!class_exists('PEAR_PackageFile_v2')) {
+ require_once 'PEAR/PackageFile/v2.php';
+ }
+ $pf = new PEAR_PackageFile_v2;
+ $pf->setRawChannel($remotechannel);
+ } else {
+ if (!class_exists('PEAR_PackageFile_v1')) {
+ require_once 'PEAR/PackageFile/v1.php';
+ }
+ $pf = new PEAR_PackageFile_v1;
+
+ }
+ $pf->setRawPackage($url['package']);
+ $pf->setDeps($url['info']);
+ if ($url['compatible']) {
+ $pf->setCompatible($url['compatible']);
+ }
+
+ $pf->setRawState($url['stability']);
+ $url['info'] = &$pf;
+ if (!extension_loaded("zlib") || isset($this->_options['nocompress'])) {
+ $ext = '.tar';
+ } else {
+ $ext = '.tgz';
+ }
+
+ if (is_array($url) && isset($url['url'])) {
+ $url['url'] .= $ext;
+ }
+
+ return $url;
+ }
+
+ return $this->raiseError($parr['channel'] . ' is using a unsupported protocol - This should never happen.');
+ }
+
+ /**
+ * @deprecated in favor of _getPackageDownloadUrl
+ */
+ function getPackageDownloadUrl($package, $version = null, $channel = false)
+ {
+ if ($version) {
+ $package .= "-$version";
+ }
+ if ($this === null || $this->_registry === null) {
+ $package = "http://pear.php.net/get/$package";
+ } else {
+ $chan = $this->_registry->getChannel($channel);
+ if (PEAR::isError($chan)) {
+ return '';
+ }
+ $package = "http://" . $chan->getServer() . "/get/$package";
+ }
+ if (!extension_loaded("zlib")) {
+ $package .= '?uncompress=yes';
+ }
+ return $package;
+ }
+
+ /**
+ * Retrieve a list of downloaded packages after a call to {@link download()}.
+ *
+ * Also resets the list of downloaded packages.
+ * @return array
+ */
+ function getDownloadedPackages()
+ {
+ $ret = $this->_downloadedPackages;
+ $this->_downloadedPackages = array();
+ $this->_toDownload = array();
+ return $ret;
+ }
+
+ function _downloadCallback($msg, $params = null)
+ {
+ switch ($msg) {
+ case 'saveas':
+ $this->log(1, "downloading $params ...");
+ break;
+ case 'done':
+ $this->log(1, '...done: ' . number_format($params, 0, '', ',') . ' bytes');
+ break;
+ case 'bytesread':
+ static $bytes;
+ if (empty($bytes)) {
+ $bytes = 0;
+ }
+ if (!($bytes % 10240)) {
+ $this->log(1, '.', false);
+ }
+ $bytes += $params;
+ break;
+ case 'start':
+ if($params[1] == -1) {
+ $length = "Unknown size";
+ } else {
+ $length = number_format($params[1], 0, '', ',')." bytes";
+ }
+ $this->log(1, "Starting to download {$params[0]} ($length)");
+ break;
+ }
+ if (method_exists($this->ui, '_downloadCallback'))
+ $this->ui->_downloadCallback($msg, $params);
+ }
+
+ function _prependPath($path, $prepend)
+ {
+ if (strlen($prepend) > 0) {
+ if (OS_WINDOWS && preg_match('/^[a-z]:/i', $path)) {
+ if (preg_match('/^[a-z]:/i', $prepend)) {
+ $prepend = substr($prepend, 2);
+ } elseif ($prepend{0} != '\\') {
+ $prepend = "\\$prepend";
+ }
+ $path = substr($path, 0, 2) . $prepend . substr($path, 2);
+ } else {
+ $path = $prepend . $path;
+ }
+ }
+ return $path;
+ }
+
+ /**
+ * @param string
+ * @param integer
+ */
+ function pushError($errmsg, $code = -1)
+ {
+ array_push($this->_errorStack, array($errmsg, $code));
+ }
+
+ function getErrorMsgs()
+ {
+ $msgs = array();
+ $errs = $this->_errorStack;
+ foreach ($errs as $err) {
+ $msgs[] = $err[0];
+ }
+ $this->_errorStack = array();
+ return $msgs;
+ }
+
+ /**
+ * for BC
+ *
+ * @deprecated
+ */
+ function sortPkgDeps(&$packages, $uninstall = false)
+ {
+ $uninstall ?
+ $this->sortPackagesForUninstall($packages) :
+ $this->sortPackagesForInstall($packages);
+ }
+
+ /**
+ * Sort a list of arrays of array(downloaded packagefilename) by dependency.
+ *
+ * This uses the topological sort method from graph theory, and the
+ * Structures_Graph package to properly sort dependencies for installation.
+ * @param array an array of downloaded PEAR_Downloader_Packages
+ * @return array array of array(packagefilename, package.xml contents)
+ */
+ function sortPackagesForInstall(&$packages)
+ {
+ require_once 'Structures/Graph.php';
+ require_once 'Structures/Graph/Node.php';
+ require_once 'Structures/Graph/Manipulator/TopologicalSorter.php';
+ $depgraph = new Structures_Graph(true);
+ $nodes = array();
+ $reg = &$this->config->getRegistry();
+ foreach ($packages as $i => $package) {
+ $pname = $reg->parsedPackageNameToString(
+ array(
+ 'channel' => $package->getChannel(),
+ 'package' => strtolower($package->getPackage()),
+ ));
+ $nodes[$pname] = new Structures_Graph_Node;
+ $nodes[$pname]->setData($packages[$i]);
+ $depgraph->addNode($nodes[$pname]);
+ }
+
+ $deplinks = array();
+ foreach ($nodes as $package => $node) {
+ $pf = &$node->getData();
+ $pdeps = $pf->getDeps(true);
+ if (!$pdeps) {
+ continue;
+ }
+
+ if ($pf->getPackagexmlVersion() == '1.0') {
+ foreach ($pdeps as $dep) {
+ if ($dep['type'] != 'pkg' ||
+ (isset($dep['optional']) && $dep['optional'] == 'yes')) {
+ continue;
+ }
+
+ $dname = $reg->parsedPackageNameToString(
+ array(
+ 'channel' => 'pear.php.net',
+ 'package' => strtolower($dep['name']),
+ ));
+
+ if (isset($nodes[$dname])) {
+ if (!isset($deplinks[$dname])) {
+ $deplinks[$dname] = array();
+ }
+
+ $deplinks[$dname][$package] = 1;
+ // dependency is in installed packages
+ continue;
+ }
+
+ $dname = $reg->parsedPackageNameToString(
+ array(
+ 'channel' => 'pecl.php.net',
+ 'package' => strtolower($dep['name']),
+ ));
+
+ if (isset($nodes[$dname])) {
+ if (!isset($deplinks[$dname])) {
+ $deplinks[$dname] = array();
+ }
+
+ $deplinks[$dname][$package] = 1;
+ // dependency is in installed packages
+ continue;
+ }
+ }
+ } else {
+ // the only ordering we care about is:
+ // 1) subpackages must be installed before packages that depend on them
+ // 2) required deps must be installed before packages that depend on them
+ if (isset($pdeps['required']['subpackage'])) {
+ $t = $pdeps['required']['subpackage'];
+ if (!isset($t[0])) {
+ $t = array($t);
+ }
+
+ $this->_setupGraph($t, $reg, $deplinks, $nodes, $package);
+ }
+
+ if (isset($pdeps['group'])) {
+ if (!isset($pdeps['group'][0])) {
+ $pdeps['group'] = array($pdeps['group']);
+ }
+
+ foreach ($pdeps['group'] as $group) {
+ if (isset($group['subpackage'])) {
+ $t = $group['subpackage'];
+ if (!isset($t[0])) {
+ $t = array($t);
+ }
+
+ $this->_setupGraph($t, $reg, $deplinks, $nodes, $package);
+ }
+ }
+ }
+
+ if (isset($pdeps['optional']['subpackage'])) {
+ $t = $pdeps['optional']['subpackage'];
+ if (!isset($t[0])) {
+ $t = array($t);
+ }
+
+ $this->_setupGraph($t, $reg, $deplinks, $nodes, $package);
+ }
+
+ if (isset($pdeps['required']['package'])) {
+ $t = $pdeps['required']['package'];
+ if (!isset($t[0])) {
+ $t = array($t);
+ }
+
+ $this->_setupGraph($t, $reg, $deplinks, $nodes, $package);
+ }
+
+ if (isset($pdeps['group'])) {
+ if (!isset($pdeps['group'][0])) {
+ $pdeps['group'] = array($pdeps['group']);
+ }
+
+ foreach ($pdeps['group'] as $group) {
+ if (isset($group['package'])) {
+ $t = $group['package'];
+ if (!isset($t[0])) {
+ $t = array($t);
+ }
+
+ $this->_setupGraph($t, $reg, $deplinks, $nodes, $package);
+ }
+ }
+ }
+ }
+ }
+
+ $this->_detectDepCycle($deplinks);
+ foreach ($deplinks as $dependent => $parents) {
+ foreach ($parents as $parent => $unused) {
+ $nodes[$dependent]->connectTo($nodes[$parent]);
+ }
+ }
+
+ $installOrder = Structures_Graph_Manipulator_TopologicalSorter::sort($depgraph);
+ $ret = array();
+ for ($i = 0, $count = count($installOrder); $i < $count; $i++) {
+ foreach ($installOrder[$i] as $index => $sortedpackage) {
+ $data = &$installOrder[$i][$index]->getData();
+ $ret[] = &$nodes[$reg->parsedPackageNameToString(
+ array(
+ 'channel' => $data->getChannel(),
+ 'package' => strtolower($data->getPackage()),
+ ))]->getData();
+ }
+ }
+
+ $packages = $ret;
+ return;
+ }
+
+ /**
+ * Detect recursive links between dependencies and break the cycles
+ *
+ * @param array
+ * @access private
+ */
+ function _detectDepCycle(&$deplinks)
+ {
+ do {
+ $keepgoing = false;
+ foreach ($deplinks as $dep => $parents) {
+ foreach ($parents as $parent => $unused) {
+ // reset the parent cycle detector
+ $this->_testCycle(null, null, null);
+ if ($this->_testCycle($dep, $deplinks, $parent)) {
+ $keepgoing = true;
+ unset($deplinks[$dep][$parent]);
+ if (count($deplinks[$dep]) == 0) {
+ unset($deplinks[$dep]);
+ }
+
+ continue 3;
+ }
+ }
+ }
+ } while ($keepgoing);
+ }
+
+ function _testCycle($test, $deplinks, $dep)
+ {
+ static $visited = array();
+ if ($test === null) {
+ $visited = array();
+ return;
+ }
+
+ // this happens when a parent has a dep cycle on another dependency
+ // but the child is not part of the cycle
+ if (isset($visited[$dep])) {
+ return false;
+ }
+
+ $visited[$dep] = 1;
+ if ($test == $dep) {
+ return true;
+ }
+
+ if (isset($deplinks[$dep])) {
+ if (in_array($test, array_keys($deplinks[$dep]), true)) {
+ return true;
+ }
+
+ foreach ($deplinks[$dep] as $parent => $unused) {
+ if ($this->_testCycle($test, $deplinks, $parent)) {
+ return true;
+ }
+ }
+ }
+
+ return false;
+ }
+
+ /**
+ * Set up the dependency for installation parsing
+ *
+ * @param array $t dependency information
+ * @param PEAR_Registry $reg
+ * @param array $deplinks list of dependency links already established
+ * @param array $nodes all existing package nodes
+ * @param string $package parent package name
+ * @access private
+ */
+ function _setupGraph($t, $reg, &$deplinks, &$nodes, $package)
+ {
+ foreach ($t as $dep) {
+ $depchannel = !isset($dep['channel']) ? '__uri': $dep['channel'];
+ $dname = $reg->parsedPackageNameToString(
+ array(
+ 'channel' => $depchannel,
+ 'package' => strtolower($dep['name']),
+ ));
+
+ if (isset($nodes[$dname])) {
+ if (!isset($deplinks[$dname])) {
+ $deplinks[$dname] = array();
+ }
+ $deplinks[$dname][$package] = 1;
+ }
+ }
+ }
+
+ function _dependsOn($a, $b)
+ {
+ return $this->_checkDepTree(strtolower($a->getChannel()), strtolower($a->getPackage()), $b);
+ }
+
+ function _checkDepTree($channel, $package, $b, $checked = array())
+ {
+ $checked[$channel][$package] = true;
+ if (!isset($this->_depTree[$channel][$package])) {
+ return false;
+ }
+
+ if (isset($this->_depTree[$channel][$package][strtolower($b->getChannel())]
+ [strtolower($b->getPackage())])) {
+ return true;
+ }
+
+ foreach ($this->_depTree[$channel][$package] as $ch => $packages) {
+ foreach ($packages as $pa => $true) {
+ if ($this->_checkDepTree($ch, $pa, $b, $checked)) {
+ return true;
+ }
+ }
+ }
+
+ return false;
+ }
+
+ function _sortInstall($a, $b)
+ {
+ if (!$a->getDeps() && !$b->getDeps()) {
+ return 0; // neither package has dependencies, order is insignificant
+ }
+ if ($a->getDeps() && !$b->getDeps()) {
+ return 1; // $a must be installed after $b because $a has dependencies
+ }
+ if (!$a->getDeps() && $b->getDeps()) {
+ return -1; // $b must be installed after $a because $b has dependencies
+ }
+ // both packages have dependencies
+ if ($this->_dependsOn($a, $b)) {
+ return 1;
+ }
+ if ($this->_dependsOn($b, $a)) {
+ return -1;
+ }
+ return 0;
+ }
+
+ /**
+ * Download a file through HTTP. Considers suggested file name in
+ * Content-disposition: header and can run a callback function for
+ * different events. The callback will be called with two
+ * parameters: the callback type, and parameters. The implemented
+ * callback types are:
+ *
+ * 'setup' called at the very beginning, parameter is a UI object
+ * that should be used for all output
+ * 'message' the parameter is a string with an informational message
+ * 'saveas' may be used to save with a different file name, the
+ * parameter is the filename that is about to be used.
+ * If a 'saveas' callback returns a non-empty string,
+ * that file name will be used as the filename instead.
+ * Note that $save_dir will not be affected by this, only
+ * the basename of the file.
+ * 'start' download is starting, parameter is number of bytes
+ * that are expected, or -1 if unknown
+ * 'bytesread' parameter is the number of bytes read so far
+ * 'done' download is complete, parameter is the total number
+ * of bytes read
+ * 'connfailed' if the TCP/SSL connection fails, this callback is called
+ * with array(host,port,errno,errmsg)
+ * 'writefailed' if writing to disk fails, this callback is called
+ * with array(destfile,errmsg)
+ *
+ * If an HTTP proxy has been configured (http_proxy PEAR_Config
+ * setting), the proxy will be used.
+ *
+ * @param string $url the URL to download
+ * @param object $ui PEAR_Frontend_* instance
+ * @param object $config PEAR_Config instance
+ * @param string $save_dir directory to save file in
+ * @param mixed $callback function/method to call for status
+ * updates
+ * @param false|string|array $lastmodified header values to check against for caching
+ * use false to return the header values from this download
+ * @param false|array $accept Accept headers to send
+ * @param false|string $channel Channel to use for retrieving authentication
+ * @return string|array Returns the full path of the downloaded file or a PEAR
+ * error on failure. If the error is caused by
+ * socket-related errors, the error object will
+ * have the fsockopen error code available through
+ * getCode(). If caching is requested, then return the header
+ * values.
+ *
+ * @access public
+ */
+ function downloadHttp($url, &$ui, $save_dir = '.', $callback = null, $lastmodified = null,
+ $accept = false, $channel = false)
+ {
+ static $redirect = 0;
+ // always reset , so we are clean case of error
+ $wasredirect = $redirect;
+ $redirect = 0;
+ if ($callback) {
+ call_user_func($callback, 'setup', array(&$ui));
+ }
+
+ $info = parse_url($url);
+ if (!isset($info['scheme']) || !in_array($info['scheme'], array('http', 'https'))) {
+ return PEAR::raiseError('Cannot download non-http URL "' . $url . '"');
+ }
+
+ if (!isset($info['host'])) {
+ return PEAR::raiseError('Cannot download from non-URL "' . $url . '"');
+ }
+
+ $host = isset($info['host']) ? $info['host'] : null;
+ $port = isset($info['port']) ? $info['port'] : null;
+ $path = isset($info['path']) ? $info['path'] : null;
+
+ if (isset($this)) {
+ $config = &$this->config;
+ } else {
+ $config = &PEAR_Config::singleton();
+ }
+
+ $proxy_host = $proxy_port = $proxy_user = $proxy_pass = '';
+ if ($config->get('http_proxy') &&
+ $proxy = parse_url($config->get('http_proxy'))) {
+ $proxy_host = isset($proxy['host']) ? $proxy['host'] : null;
+ if (isset($proxy['scheme']) && $proxy['scheme'] == 'https') {
+ $proxy_host = 'ssl://' . $proxy_host;
+ }
+ $proxy_port = isset($proxy['port']) ? $proxy['port'] : 8080;
+ $proxy_user = isset($proxy['user']) ? urldecode($proxy['user']) : null;
+ $proxy_pass = isset($proxy['pass']) ? urldecode($proxy['pass']) : null;
+
+ if ($callback) {
+ call_user_func($callback, 'message', "Using HTTP proxy $host:$port");
+ }
+ }
+
+ if (empty($port)) {
+ $port = (isset($info['scheme']) && $info['scheme'] == 'https') ? 443 : 80;
+ }
+
+ $scheme = (isset($info['scheme']) && $info['scheme'] == 'https') ? 'https' : 'http';
+
+ if ($proxy_host != '') {
+ $fp = @fsockopen($proxy_host, $proxy_port, $errno, $errstr);
+ if (!$fp) {
+ if ($callback) {
+ call_user_func($callback, 'connfailed', array($proxy_host, $proxy_port,
+ $errno, $errstr));
+ }
+ return PEAR::raiseError("Connection to `$proxy_host:$proxy_port' failed: $errstr", $errno);
+ }
+
+ if ($lastmodified === false || $lastmodified) {
+ $request = "GET $url HTTP/1.1\r\n";
+ $request .= "Host: $host\r\n";
+ } else {
+ $request = "GET $url HTTP/1.0\r\n";
+ $request .= "Host: $host\r\n";
+ }
+ } else {
+ $network_host = $host;
+ if (isset($info['scheme']) && $info['scheme'] == 'https') {
+ $network_host = 'ssl://' . $host;
+ }
+
+ $fp = @fsockopen($network_host, $port, $errno, $errstr);
+ if (!$fp) {
+ if ($callback) {
+ call_user_func($callback, 'connfailed', array($host, $port,
+ $errno, $errstr));
+ }
+ return PEAR::raiseError("Connection to `$host:$port' failed: $errstr", $errno);
+ }
+
+ if ($lastmodified === false || $lastmodified) {
+ $request = "GET $path HTTP/1.1\r\n";
+ $request .= "Host: $host\r\n";
+ } else {
+ $request = "GET $path HTTP/1.0\r\n";
+ $request .= "Host: $host\r\n";
+ }
+ }
+
+ $ifmodifiedsince = '';
+ if (is_array($lastmodified)) {
+ if (isset($lastmodified['Last-Modified'])) {
+ $ifmodifiedsince = 'If-Modified-Since: ' . $lastmodified['Last-Modified'] . "\r\n";
+ }
+
+ if (isset($lastmodified['ETag'])) {
+ $ifmodifiedsince .= "If-None-Match: $lastmodified[ETag]\r\n";
+ }
+ } else {
+ $ifmodifiedsince = ($lastmodified ? "If-Modified-Since: $lastmodified\r\n" : '');
+ }
+
+ $request .= $ifmodifiedsince .
+ "User-Agent: PEAR/1.9.4/PHP/" . PHP_VERSION . "\r\n";
+
+ if (isset($this)) { // only pass in authentication for non-static calls
+ $username = $config->get('username', null, $channel);
+ $password = $config->get('password', null, $channel);
+ if ($username && $password) {
+ $tmp = base64_encode("$username:$password");
+ $request .= "Authorization: Basic $tmp\r\n";
+ }
+ }
+
+ if ($proxy_host != '' && $proxy_user != '') {
+ $request .= 'Proxy-Authorization: Basic ' .
+ base64_encode($proxy_user . ':' . $proxy_pass) . "\r\n";
+ }
+
+ if ($accept) {
+ $request .= 'Accept: ' . implode(', ', $accept) . "\r\n";
+ }
+
+ $request .= "Connection: close\r\n";
+ $request .= "\r\n";
+ fwrite($fp, $request);
+ $headers = array();
+ $reply = 0;
+ while (trim($line = fgets($fp, 1024))) {
+ if (preg_match('/^([^:]+):\s+(.*)\s*\\z/', $line, $matches)) {
+ $headers[strtolower($matches[1])] = trim($matches[2]);
+ } elseif (preg_match('|^HTTP/1.[01] ([0-9]{3}) |', $line, $matches)) {
+ $reply = (int)$matches[1];
+ if ($reply == 304 && ($lastmodified || ($lastmodified === false))) {
+ return false;
+ }
+
+ if (!in_array($reply, array(200, 301, 302, 303, 305, 307))) {
+ return PEAR::raiseError("File $scheme://$host:$port$path not valid (received: $line)");
+ }
+ }
+ }
+
+ if ($reply != 200) {
+ if (!isset($headers['location'])) {
+ return PEAR::raiseError("File $scheme://$host:$port$path not valid (redirected but no location)");
+ }
+
+ if ($wasredirect > 4) {
+ return PEAR::raiseError("File $scheme://$host:$port$path not valid (redirection looped more than 5 times)");
+ }
+
+ $redirect = $wasredirect + 1;
+ return $this->downloadHttp($headers['location'],
+ $ui, $save_dir, $callback, $lastmodified, $accept);
+ }
+
+ if (isset($headers['content-disposition']) &&
+ preg_match('/\sfilename=\"([^;]*\S)\"\s*(;|\\z)/', $headers['content-disposition'], $matches)) {
+ $save_as = basename($matches[1]);
+ } else {
+ $save_as = basename($url);
+ }
+
+ if ($callback) {
+ $tmp = call_user_func($callback, 'saveas', $save_as);
+ if ($tmp) {
+ $save_as = $tmp;
+ }
+ }
+
+ $dest_file = $save_dir . DIRECTORY_SEPARATOR . $save_as;
+ if (is_link($dest_file)) {
+ return PEAR::raiseError('SECURITY ERROR: Will not write to ' . $dest_file . ' as it is symlinked to ' . readlink($dest_file) . ' - Possible symlink attack');
+ }
+
+ if (!$wp = @fopen($dest_file, 'wb')) {
+ fclose($fp);
+ if ($callback) {
+ call_user_func($callback, 'writefailed', array($dest_file, $php_errormsg));
+ }
+ return PEAR::raiseError("could not open $dest_file for writing");
+ }
+
+ $length = isset($headers['content-length']) ? $headers['content-length'] : -1;
+
+ $bytes = 0;
+ if ($callback) {
+ call_user_func($callback, 'start', array(basename($dest_file), $length));
+ }
+
+ while ($data = fread($fp, 1024)) {
+ $bytes += strlen($data);
+ if ($callback) {
+ call_user_func($callback, 'bytesread', $bytes);
+ }
+ if (!@fwrite($wp, $data)) {
+ fclose($fp);
+ if ($callback) {
+ call_user_func($callback, 'writefailed', array($dest_file, $php_errormsg));
+ }
+ return PEAR::raiseError("$dest_file: write failed ($php_errormsg)");
+ }
+ }
+
+ fclose($fp);
+ fclose($wp);
+ if ($callback) {
+ call_user_func($callback, 'done', $bytes);
+ }
+
+ if ($lastmodified === false || $lastmodified) {
+ if (isset($headers['etag'])) {
+ $lastmodified = array('ETag' => $headers['etag']);
+ }
+
+ if (isset($headers['last-modified'])) {
+ if (is_array($lastmodified)) {
+ $lastmodified['Last-Modified'] = $headers['last-modified'];
+ } else {
+ $lastmodified = $headers['last-modified'];
+ }
+ }
+ return array($dest_file, $lastmodified, $headers);
+ }
+ return $dest_file;
+ }
+}
\ No newline at end of file
projects / timetracker.git / blobdiff