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<?php
/**
* PEAR_REST_13
*
* 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
* @version CVS: $Id: 13.php 313023 2011-07-06 19:17:11Z dufuz $
* @link http://pear.php.net/package/PEAR
* @since File available since Release 1.4.0a12
*/
/**
* For downloading REST xml/txt files
*/
require_once 'PEAR/REST.php';
require_once 'PEAR/REST/10.php';
/**
* Implement REST 1.3
*
* @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: 1.9.4
* @link http://pear.php.net/package/PEAR
* @since Class available since Release 1.4.0a12
*/
class PEAR_REST_13 extends PEAR_REST_10
{
/**
* Retrieve information about a remote package to be downloaded from a REST server
*
* This is smart enough to resolve the minimum PHP version dependency prior to download
* @param string $base The uri to prepend to all REST calls
* @param array $packageinfo an array of format:
* <pre>
* array(
* 'package' => 'packagename',
* 'channel' => 'channelname',
* ['state' => 'alpha' (or valid state),]
* -or-
* ['version' => '1.whatever']
* </pre>
* @param string $prefstate Current preferred_state config variable value
* @param bool $installed the installed version of this package to compare against
* @return array|false|PEAR_Error see {@link _returnDownloadURL()}
*/
function getDownloadURL($base, $packageinfo, $prefstate, $installed, $channel = false)
{
$states = $this->betterStates($prefstate, true);
if (!$states) {
return PEAR::raiseError('"' . $prefstate . '" is not a valid state');
}
$channel = $packageinfo['channel'];
$package = $packageinfo['package'];
$state = isset($packageinfo['state']) ? $packageinfo['state'] : null;
$version = isset($packageinfo['version']) ? $packageinfo['version'] : null;
$restFile = $base . 'r/' . strtolower($package) . '/allreleases2.xml';
$info = $this->_rest->retrieveData($restFile, false, false, $channel);
if (PEAR::isError($info)) {
return PEAR::raiseError('No releases available for package "' .
$channel . '/' . $package . '"');
}
if (!isset($info['r'])) {
return false;
}
$release = $found = false;
if (!is_array($info['r']) || !isset($info['r'][0])) {
$info['r'] = array($info['r']);
}
$skippedphp = false;
foreach ($info['r'] as $release) {
if (!isset($this->_rest->_options['force']) && ($installed &&
version_compare($release['v'], $installed, '<'))) {
continue;
}
if (isset($state)) {
// try our preferred state first
if ($release['s'] == $state) {
if (!isset($version) && version_compare($release['m'], phpversion(), '>')) {
// skip releases that require a PHP version newer than our PHP version
$skippedphp = $release;
continue;
}
$found = true;
break;
}
// see if there is something newer and more stable
// bug #7221
if (in_array($release['s'], $this->betterStates($state), true)) {
if (!isset($version) && version_compare($release['m'], phpversion(), '>')) {
// skip releases that require a PHP version newer than our PHP version
$skippedphp = $release;
continue;
}
$found = true;
break;
}
} elseif (isset($version)) {
if ($release['v'] == $version) {
if (!isset($this->_rest->_options['force']) &&
!isset($version) &&
version_compare($release['m'], phpversion(), '>')) {
// skip releases that require a PHP version newer than our PHP version
$skippedphp = $release;
continue;
}
$found = true;
break;
}
} else {
if (in_array($release['s'], $states)) {
if (version_compare($release['m'], phpversion(), '>')) {
// skip releases that require a PHP version newer than our PHP version
$skippedphp = $release;
continue;
}
$found = true;
break;
}
}
}
if (!$found && $skippedphp) {
$found = null;
}
return $this->_returnDownloadURL($base, $package, $release, $info, $found, $skippedphp, $channel);
}
function getDepDownloadURL($base, $xsdversion, $dependency, $deppackage,
$prefstate = 'stable', $installed = false, $channel = false)
{
$states = $this->betterStates($prefstate, true);
if (!$states) {
return PEAR::raiseError('"' . $prefstate . '" is not a valid state');
}
$channel = $dependency['channel'];
$package = $dependency['name'];
$state = isset($dependency['state']) ? $dependency['state'] : null;
$version = isset($dependency['version']) ? $dependency['version'] : null;
$restFile = $base . 'r/' . strtolower($package) .'/allreleases2.xml';
$info = $this->_rest->retrieveData($restFile, false, false, $channel);
if (PEAR::isError($info)) {
return PEAR::raiseError('Package "' . $deppackage['channel'] . '/' . $deppackage['package']
. '" dependency "' . $channel . '/' . $package . '" has no releases');
}
if (!is_array($info) || !isset($info['r'])) {
return false;
}
$exclude = array();
$min = $max = $recommended = false;
if ($xsdversion == '1.0') {
$pinfo['package'] = $dependency['name'];
$pinfo['channel'] = 'pear.php.net'; // this is always true - don't change this
switch ($dependency['rel']) {
case 'ge' :
$min = $dependency['version'];
break;
case 'gt' :
$min = $dependency['version'];
$exclude = array($dependency['version']);
break;
case 'eq' :
$recommended = $dependency['version'];
break;
case 'lt' :
$max = $dependency['version'];
$exclude = array($dependency['version']);
break;
case 'le' :
$max = $dependency['version'];
break;
case 'ne' :
$exclude = array($dependency['version']);
break;
}
} else {
$pinfo['package'] = $dependency['name'];
$min = isset($dependency['min']) ? $dependency['min'] : false;
$max = isset($dependency['max']) ? $dependency['max'] : false;
$recommended = isset($dependency['recommended']) ?
$dependency['recommended'] : false;
if (isset($dependency['exclude'])) {
if (!isset($dependency['exclude'][0])) {
$exclude = array($dependency['exclude']);
}
}
}
$skippedphp = $found = $release = false;
if (!is_array($info['r']) || !isset($info['r'][0])) {
$info['r'] = array($info['r']);
}
foreach ($info['r'] as $release) {
if (!isset($this->_rest->_options['force']) && ($installed &&
version_compare($release['v'], $installed, '<'))) {
continue;
}
if (in_array($release['v'], $exclude)) { // skip excluded versions
continue;
}
// allow newer releases to say "I'm OK with the dependent package"
if ($xsdversion == '2.0' && isset($release['co'])) {
if (!is_array($release['co']) || !isset($release['co'][0])) {
$release['co'] = array($release['co']);
}
foreach ($release['co'] as $entry) {
if (isset($entry['x']) && !is_array($entry['x'])) {
$entry['x'] = array($entry['x']);
} elseif (!isset($entry['x'])) {
$entry['x'] = array();
}
if ($entry['c'] == $deppackage['channel'] &&
strtolower($entry['p']) == strtolower($deppackage['package']) &&
version_compare($deppackage['version'], $entry['min'], '>=') &&
version_compare($deppackage['version'], $entry['max'], '<=') &&
!in_array($release['v'], $entry['x'])) {
if (version_compare($release['m'], phpversion(), '>')) {
// skip dependency releases that require a PHP version
// newer than our PHP version
$skippedphp = $release;
continue;
}
$recommended = $release['v'];
break;
}
}
}
if ($recommended) {
if ($release['v'] != $recommended) { // if we want a specific
// version, then skip all others
continue;
}
if (!in_array($release['s'], $states)) {
// the stability is too low, but we must return the
// recommended version if possible
return $this->_returnDownloadURL($base, $package, $release, $info, true, false, $channel);
}
}
if ($min && version_compare($release['v'], $min, 'lt')) { // skip too old versions
continue;
}
if ($max && version_compare($release['v'], $max, 'gt')) { // skip too new versions
continue;
}
if ($installed && version_compare($release['v'], $installed, '<')) {
continue;
}
if (in_array($release['s'], $states)) { // if in the preferred state...
if (version_compare($release['m'], phpversion(), '>')) {
// skip dependency releases that require a PHP version
// newer than our PHP version
$skippedphp = $release;
continue;
}
$found = true; // ... then use it
break;
}
}
if (!$found && $skippedphp) {
$found = null;
}
return $this->_returnDownloadURL($base, $package, $release, $info, $found, $skippedphp, $channel);
}
}
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