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<?php
/**
* PEAR_Dependency2, advanced dependency validation
*
* 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
* @link http://pear.php.net/package/PEAR
* @since File available since Release 1.4.0a1
*/
/**
* Required for the PEAR_VALIDATE_* constants
*/
require_once 'PEAR/Validate.php';
/**
* Dependency check for PEAR packages
*
* This class handles both version 1.0 and 2.0 dependencies
* WARNING: *any* changes to this class must be duplicated in the
* test_PEAR_Dependency2 class found in tests/PEAR_Dependency2/setup.php.inc,
* or unit tests will not actually validate the changes
* @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: 1.10.16
* @link http://pear.php.net/package/PEAR
* @since Class available since Release 1.4.0a1
*/
class PEAR_Dependency2
{
/**
* One of the PEAR_VALIDATE_* states
* @see PEAR_VALIDATE_NORMAL
* @var integer
*/
var $_state;
/**
* Command-line options to install/upgrade/uninstall commands
* @param array
*/
var $_options;
/**
* @var OS_Guess
*/
var $_os;
/**
* @var PEAR_Registry
*/
var $_registry;
/**
* @var PEAR_Config
*/
var $_config;
/**
* @var PEAR_DependencyDB
*/
var $_dependencydb;
/**
* Output of PEAR_Registry::parsedPackageName()
* @var array
*/
var $_currentPackage;
/**
* @param PEAR_Config
* @param array installation options
* @param array format of PEAR_Registry::parsedPackageName()
* @param int installation state (one of PEAR_VALIDATE_*)
*/
function __construct(&$config, $installoptions, $package,
$state = PEAR_VALIDATE_INSTALLING)
{
$this->_config = &$config;
if (!class_exists('PEAR_DependencyDB')) {
require_once 'PEAR/DependencyDB.php';
}
if (isset($installoptions['packagingroot'])) {
// make sure depdb is in the right location
$config->setInstallRoot($installoptions['packagingroot']);
}
$this->_registry = &$config->getRegistry();
$this->_dependencydb = &PEAR_DependencyDB::singleton($config);
if (isset($installoptions['packagingroot'])) {
$config->setInstallRoot(false);
}
$this->_options = $installoptions;
$this->_state = $state;
if (!class_exists('OS_Guess')) {
require_once 'OS/Guess.php';
}
$this->_os = new OS_Guess;
$this->_currentPackage = $package;
}
static function _getExtraString($dep)
{
$extra = ' (';
if (isset($dep['uri'])) {
return '';
}
if (isset($dep['recommended'])) {
$extra .= 'recommended version ' . $dep['recommended'];
} else {
if (isset($dep['min'])) {
$extra .= 'version >= ' . $dep['min'];
}
if (isset($dep['max'])) {
if ($extra != ' (') {
$extra .= ', ';
}
$extra .= 'version <= ' . $dep['max'];
}
if (isset($dep['exclude'])) {
if (!is_array($dep['exclude'])) {
$dep['exclude'] = array($dep['exclude']);
}
if ($extra != ' (') {
$extra .= ', ';
}
$extra .= 'excluded versions: ';
foreach ($dep['exclude'] as $i => $exclude) {
if ($i) {
$extra .= ', ';
}
$extra .= $exclude;
}
}
}
$extra .= ')';
if ($extra == ' ()') {
$extra = '';
}
return $extra;
}
/**
* This makes unit-testing a heck of a lot easier
*/
function getPHP_OS()
{
return PHP_OS;
}
/**
* This makes unit-testing a heck of a lot easier
*/
function getsysname()
{
return $this->_os->getSysname();
}
/**
* Specify a dependency on an OS. Use arch for detailed os/processor information
*
* There are two generic OS dependencies that will be the most common, unix and windows.
* Other options are linux, freebsd, darwin (OS X), sunos, irix, hpux, aix
*/
function validateOsDependency($dep)
{
if ($this->_state != PEAR_VALIDATE_INSTALLING && $this->_state != PEAR_VALIDATE_DOWNLOADING) {
return true;
}
if ($dep['name'] == '*') {
return true;
}
$not = isset($dep['conflicts']) ? true : false;
switch (strtolower($dep['name'])) {
case 'windows' :
if ($not) {
if (strtolower(substr($this->getPHP_OS(), 0, 3)) == 'win') {
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError("Cannot install %s on Windows");
}
return $this->warning("warning: Cannot install %s on Windows");
}
} else {
if (strtolower(substr($this->getPHP_OS(), 0, 3)) != 'win') {
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError("Can only install %s on Windows");
}
return $this->warning("warning: Can only install %s on Windows");
}
}
break;
case 'unix' :
$unices = array('linux', 'freebsd', 'darwin', 'sunos', 'irix', 'hpux', 'aix');
if ($not) {
if (in_array($this->getSysname(), $unices)) {
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError("Cannot install %s on any Unix system");
}
return $this->warning( "warning: Cannot install %s on any Unix system");
}
} else {
if (!in_array($this->getSysname(), $unices)) {
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError("Can only install %s on a Unix system");
}
return $this->warning("warning: Can only install %s on a Unix system");
}
}
break;
default :
if ($not) {
if (strtolower($dep['name']) == strtolower($this->getSysname())) {
if (!isset($this->_options['nodeps']) &&
!isset($this->_options['force'])) {
return $this->raiseError('Cannot install %s on ' . $dep['name'] .
' operating system');
}
return $this->warning('warning: Cannot install %s on ' .
$dep['name'] . ' operating system');
}
} else {
if (strtolower($dep['name']) != strtolower($this->getSysname())) {
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError('Cannot install %s on ' .
$this->getSysname() .
' operating system, can only install on ' . $dep['name']);
}
return $this->warning('warning: Cannot install %s on ' .
$this->getSysname() .
' operating system, can only install on ' . $dep['name']);
}
}
}
return true;
}
/**
* This makes unit-testing a heck of a lot easier
*/
function matchSignature($pattern)
{
return $this->_os->matchSignature($pattern);
}
/**
* Specify a complex dependency on an OS/processor/kernel version,
* Use OS for simple operating system dependency.
*
* This is the only dependency that accepts an eregable pattern. The pattern
* will be matched against the php_uname() output parsed by OS_Guess
*/
function validateArchDependency($dep)
{
if ($this->_state != PEAR_VALIDATE_INSTALLING) {
return true;
}
$not = isset($dep['conflicts']) ? true : false;
if (!$this->matchSignature($dep['pattern'])) {
if (!$not) {
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError('%s Architecture dependency failed, does not ' .
'match "' . $dep['pattern'] . '"');
}
return $this->warning('warning: %s Architecture dependency failed, does ' .
'not match "' . $dep['pattern'] . '"');
}
return true;
}
if ($not) {
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError('%s Architecture dependency failed, required "' .
$dep['pattern'] . '"');
}
return $this->warning('warning: %s Architecture dependency failed, ' .
'required "' . $dep['pattern'] . '"');
}
return true;
}
/**
* This makes unit-testing a heck of a lot easier
*/
function extension_loaded($name)
{
return extension_loaded($name);
}
/**
* This makes unit-testing a heck of a lot easier
*/
function phpversion($name = null)
{
if ($name !== null) {
return phpversion($name);
}
return phpversion();
}
function validateExtensionDependency($dep, $required = true)
{
if ($this->_state != PEAR_VALIDATE_INSTALLING &&
$this->_state != PEAR_VALIDATE_DOWNLOADING) {
return true;
}
$loaded = $this->extension_loaded($dep['name']);
$extra = self::_getExtraString($dep);
if (isset($dep['exclude'])) {
if (!is_array($dep['exclude'])) {
$dep['exclude'] = array($dep['exclude']);
}
}
if (!isset($dep['min']) && !isset($dep['max']) &&
!isset($dep['recommended']) && !isset($dep['exclude'])
) {
if ($loaded) {
if (isset($dep['conflicts'])) {
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError('%s conflicts with PHP extension "' .
$dep['name'] . '"' . $extra);
}
return $this->warning('warning: %s conflicts with PHP extension "' .
$dep['name'] . '"' . $extra);
}
return true;
}
if (isset($dep['conflicts'])) {
return true;
}
if ($required) {
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError('%s requires PHP extension "' .
$dep['name'] . '"' . $extra);
}
return $this->warning('warning: %s requires PHP extension "' .
$dep['name'] . '"' . $extra);
}
return $this->warning('%s can optionally use PHP extension "' .
$dep['name'] . '"' . $extra);
}
if (!$loaded) {
if (isset($dep['conflicts'])) {
return true;
}
if (!$required) {
return $this->warning('%s can optionally use PHP extension "' .
$dep['name'] . '"' . $extra);
}
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError('%s requires PHP extension "' . $dep['name'] .
'"' . $extra);
}
return $this->warning('warning: %s requires PHP extension "' . $dep['name'] .
'"' . $extra);
}
$version = (string) $this->phpversion($dep['name']);
if (empty($version)) {
$version = '0';
}
$fail = false;
if (isset($dep['min']) && !version_compare($version, $dep['min'], '>=')) {
$fail = true;
}
if (isset($dep['max']) && !version_compare($version, $dep['max'], '<=')) {
$fail = true;
}
if ($fail && !isset($dep['conflicts'])) {
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError('%s requires PHP extension "' . $dep['name'] .
'"' . $extra . ', installed version is ' . $version);
}
return $this->warning('warning: %s requires PHP extension "' . $dep['name'] .
'"' . $extra . ', installed version is ' . $version);
} elseif ((isset($dep['min']) || isset($dep['max'])) && !$fail && isset($dep['conflicts'])) {
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError('%s conflicts with PHP extension "' .
$dep['name'] . '"' . $extra . ', installed version is ' . $version);
}
return $this->warning('warning: %s conflicts with PHP extension "' .
$dep['name'] . '"' . $extra . ', installed version is ' . $version);
}
if (isset($dep['exclude'])) {
foreach ($dep['exclude'] as $exclude) {
if (version_compare($version, $exclude, '==')) {
if (isset($dep['conflicts'])) {
continue;
}
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError('%s is not compatible with PHP extension "' .
$dep['name'] . '" version ' .
$exclude);
}
return $this->warning('warning: %s is not compatible with PHP extension "' .
$dep['name'] . '" version ' .
$exclude);
} elseif (version_compare($version, $exclude, '!=') && isset($dep['conflicts'])) {
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError('%s conflicts with PHP extension "' .
$dep['name'] . '"' . $extra . ', installed version is ' . $version);
}
return $this->warning('warning: %s conflicts with PHP extension "' .
$dep['name'] . '"' . $extra . ', installed version is ' . $version);
}
}
}
if (isset($dep['recommended'])) {
if (version_compare($version, $dep['recommended'], '==')) {
return true;
}
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError('%s dependency: PHP extension ' . $dep['name'] .
' version "' . $version . '"' .
' is not the recommended version "' . $dep['recommended'] .
'", but may be compatible, use --force to install');
}
return $this->warning('warning: %s dependency: PHP extension ' .
$dep['name'] . ' version "' . $version . '"' .
' is not the recommended version "' . $dep['recommended'].'"');
}
return true;
}
function validatePhpDependency($dep)
{
if ($this->_state != PEAR_VALIDATE_INSTALLING &&
$this->_state != PEAR_VALIDATE_DOWNLOADING) {
return true;
}
$version = $this->phpversion();
$extra = self::_getExtraString($dep);
if (isset($dep['exclude'])) {
if (!is_array($dep['exclude'])) {
$dep['exclude'] = array($dep['exclude']);
}
}
if (isset($dep['min'])) {
if (!version_compare($version, $dep['min'], '>=')) {
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError('%s requires PHP' .
$extra . ', installed version is ' . $version);
}
return $this->warning('warning: %s requires PHP' .
$extra . ', installed version is ' . $version);
}
}
if (isset($dep['max'])) {
if (!version_compare($version, $dep['max'], '<=')) {
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError('%s requires PHP' .
$extra . ', installed version is ' . $version);
}
return $this->warning('warning: %s requires PHP' .
$extra . ', installed version is ' . $version);
}
}
if (isset($dep['exclude'])) {
foreach ($dep['exclude'] as $exclude) {
if (version_compare($version, $exclude, '==')) {
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError('%s is not compatible with PHP version ' .
$exclude);
}
return $this->warning(
'warning: %s is not compatible with PHP version ' .
$exclude);
}
}
}
return true;
}
/**
* This makes unit-testing a heck of a lot easier
*/
function getPEARVersion()
{
return '1.10.16';
}
function validatePearinstallerDependency($dep)
{
$pearversion = $this->getPEARVersion();
$extra = self::_getExtraString($dep);
if (isset($dep['exclude'])) {
if (!is_array($dep['exclude'])) {
$dep['exclude'] = array($dep['exclude']);
}
}
if (version_compare($pearversion, $dep['min'], '<')) {
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError('%s requires PEAR Installer' . $extra .
', installed version is ' . $pearversion);
}
return $this->warning('warning: %s requires PEAR Installer' . $extra .
', installed version is ' . $pearversion);
}
if (isset($dep['max'])) {
if (version_compare($pearversion, $dep['max'], '>')) {
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError('%s requires PEAR Installer' . $extra .
', installed version is ' . $pearversion);
}
return $this->warning('warning: %s requires PEAR Installer' . $extra .
', installed version is ' . $pearversion);
}
}
if (isset($dep['exclude'])) {
if (!isset($dep['exclude'][0])) {
$dep['exclude'] = array($dep['exclude']);
}
foreach ($dep['exclude'] as $exclude) {
if (version_compare($exclude, $pearversion, '==')) {
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError('%s is not compatible with PEAR Installer ' .
'version ' . $exclude);
}
return $this->warning('warning: %s is not compatible with PEAR ' .
'Installer version ' . $exclude);
}
}
}
return true;
}
function validateSubpackageDependency($dep, $required, $params)
{
return $this->validatePackageDependency($dep, $required, $params);
}
/**
* @param array dependency information (2.0 format)
* @param boolean whether this is a required dependency
* @param array a list of downloaded packages to be installed, if any
* @param boolean if true, then deps on pear.php.net that fail will also check
* against pecl.php.net packages to accommodate extensions that have
* moved to pecl.php.net from pear.php.net
*/
function validatePackageDependency($dep, $required, $params, $depv1 = false)
{
if ($this->_state != PEAR_VALIDATE_INSTALLING &&
$this->_state != PEAR_VALIDATE_DOWNLOADING) {
return true;
}
if (isset($dep['providesextension'])) {
if ($this->extension_loaded($dep['providesextension'])) {
$save = $dep;
$subdep = $dep;
$subdep['name'] = $subdep['providesextension'];
PEAR::pushErrorHandling(PEAR_ERROR_RETURN);
$ret = $this->validateExtensionDependency($subdep, $required);
PEAR::popErrorHandling();
if (!PEAR::isError($ret)) {
return true;
}
}
}
if ($this->_state == PEAR_VALIDATE_INSTALLING) {
return $this->_validatePackageInstall($dep, $required, $depv1);
}
if ($this->_state == PEAR_VALIDATE_DOWNLOADING) {
return $this->_validatePackageDownload($dep, $required, $params, $depv1);
}
}
function _validatePackageDownload($dep, $required, $params, $depv1 = false)
{
$dep['package'] = $dep['name'];
if (isset($dep['uri'])) {
$dep['channel'] = '__uri';
}
$depname = $this->_registry->parsedPackageNameToString($dep, true);
$found = false;
foreach ($params as $param) {
if ($param->isEqual(
array('package' => $dep['name'],
'channel' => $dep['channel']))) {
$found = true;
break;
}
if ($depv1 && $dep['channel'] == 'pear.php.net') {
if ($param->isEqual(
array('package' => $dep['name'],
'channel' => 'pecl.php.net'))) {
$found = true;
break;
}
}
}
if (!$found && isset($dep['providesextension'])) {
foreach ($params as $param) {
if ($param->isExtension($dep['providesextension'])) {
$found = true;
break;
}
}
}
if ($found) {
$version = $param->getVersion();
$installed = false;
$downloaded = true;
} else {
if ($this->_registry->packageExists($dep['name'], $dep['channel'])) {
$installed = true;
$downloaded = false;
$version = $this->_registry->packageinfo($dep['name'], 'version',
$dep['channel']);
} else {
if ($dep['channel'] == 'pecl.php.net' && $this->_registry->packageExists($dep['name'],
'pear.php.net')) {
$installed = true;
$downloaded = false;
$version = $this->_registry->packageinfo($dep['name'], 'version',
'pear.php.net');
} else {
$version = 'not installed or downloaded';
$installed = false;
$downloaded = false;
}
}
}
$extra = self::_getExtraString($dep);
if (isset($dep['exclude']) && !is_array($dep['exclude'])) {
$dep['exclude'] = array($dep['exclude']);
}
if (!isset($dep['min']) && !isset($dep['max']) &&
!isset($dep['recommended']) && !isset($dep['exclude'])
) {
if ($installed || $downloaded) {
$installed = $installed ? 'installed' : 'downloaded';
if (isset($dep['conflicts'])) {
$rest = '';
if ($version) {
$rest = ", $installed version is " . $version;
}
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError('%s conflicts with package "' . $depname . '"' . $extra . $rest);
}
return $this->warning('warning: %s conflicts with package "' . $depname . '"' . $extra . $rest);
}
return true;
}
if (isset($dep['conflicts'])) {
return true;
}
if ($required) {
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError('%s requires package "' . $depname . '"' . $extra);
}
return $this->warning('warning: %s requires package "' . $depname . '"' . $extra);
}
return $this->warning('%s can optionally use package "' . $depname . '"' . $extra);
}
if (!$installed && !$downloaded) {
if (isset($dep['conflicts'])) {
return true;
}
if ($required) {
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError('%s requires package "' . $depname . '"' . $extra);
}
return $this->warning('warning: %s requires package "' . $depname . '"' . $extra);
}
return $this->warning('%s can optionally use package "' . $depname . '"' . $extra);
}
$fail = false;
if (isset($dep['min']) && version_compare($version, $dep['min'], '<')) {
$fail = true;
}
if (isset($dep['max']) && version_compare($version, $dep['max'], '>')) {
$fail = true;
}
if ($fail && !isset($dep['conflicts'])) {
$installed = $installed ? 'installed' : 'downloaded';
$dep['package'] = $dep['name'];
$dep = $this->_registry->parsedPackageNameToString($dep, true);
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError('%s requires package "' . $depname . '"' .
$extra . ", $installed version is " . $version);
}
return $this->warning('warning: %s requires package "' . $depname . '"' .
$extra . ", $installed version is " . $version);
} elseif ((isset($dep['min']) || isset($dep['max'])) && !$fail &&
isset($dep['conflicts']) && !isset($dep['exclude'])) {
$installed = $installed ? 'installed' : 'downloaded';
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError('%s conflicts with package "' . $depname . '"' . $extra .
", $installed version is " . $version);
}
return $this->warning('warning: %s conflicts with package "' . $depname . '"' .
$extra . ", $installed version is " . $version);
}
if (isset($dep['exclude'])) {
$installed = $installed ? 'installed' : 'downloaded';
foreach ($dep['exclude'] as $exclude) {
if (version_compare($version, $exclude, '==') && !isset($dep['conflicts'])) {
if (!isset($this->_options['nodeps']) &&
!isset($this->_options['force'])
) {
return $this->raiseError('%s is not compatible with ' .
$installed . ' package "' .
$depname . '" version ' .
$exclude);
}
return $this->warning('warning: %s is not compatible with ' .
$installed . ' package "' .
$depname . '" version ' .
$exclude);
} elseif (version_compare($version, $exclude, '!=') && isset($dep['conflicts'])) {
$installed = $installed ? 'installed' : 'downloaded';
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError('%s conflicts with package "' . $depname . '"' .
$extra . ", $installed version is " . $version);
}
return $this->warning('warning: %s conflicts with package "' . $depname . '"' .
$extra . ", $installed version is " . $version);
}
}
}
if (isset($dep['recommended'])) {
$installed = $installed ? 'installed' : 'downloaded';
if (version_compare($version, $dep['recommended'], '==')) {
return true;
}
if (!$found && $installed) {
$param = $this->_registry->getPackage($dep['name'], $dep['channel']);
}
if ($param) {
$found = false;
foreach ($params as $parent) {
if ($parent->isEqual($this->_currentPackage)) {
$found = true;
break;
}
}
if ($found) {
if ($param->isCompatible($parent)) {
return true;
}
} else { // this is for validPackage() calls
$parent = $this->_registry->getPackage($this->_currentPackage['package'],
$this->_currentPackage['channel']);
if ($parent !== null && $param->isCompatible($parent)) {
return true;
}
}
}
if (!isset($this->_options['nodeps']) && !isset($this->_options['force']) &&
!isset($this->_options['loose'])
) {
return $this->raiseError('%s dependency package "' . $depname .
'" ' . $installed . ' version ' . $version .
' is not the recommended version ' . $dep['recommended'] .
', but may be compatible, use --force to install');
}
return $this->warning('warning: %s dependency package "' . $depname .
'" ' . $installed . ' version ' . $version .
' is not the recommended version ' . $dep['recommended']);
}
return true;
}
function _validatePackageInstall($dep, $required, $depv1 = false)
{
return $this->_validatePackageDownload($dep, $required, array(), $depv1);
}
/**
* Verify that uninstalling packages passed in to command line is OK.
*
* @param PEAR_Installer $dl
* @return PEAR_Error|true
*/
function validatePackageUninstall(&$dl)
{
if (PEAR::isError($this->_dependencydb)) {
return $this->_dependencydb;
}
$params = array();
// construct an array of "downloaded" packages to fool the package dependency checker
// into using these to validate uninstalls of circular dependencies
$downloaded = &$dl->getUninstallPackages();
foreach ($downloaded as $i => $pf) {
if (!class_exists('PEAR_Downloader_Package')) {
require_once 'PEAR/Downloader/Package.php';
}
$dp = new PEAR_Downloader_Package($dl);
$dp->setPackageFile($downloaded[$i]);
$params[$i] = $dp;
}
// check cache
$memyselfandI = strtolower($this->_currentPackage['channel']) . '/' .
strtolower($this->_currentPackage['package']);
if (isset($dl->___uninstall_package_cache)) {
$badpackages = $dl->___uninstall_package_cache;
if (isset($badpackages[$memyselfandI]['warnings'])) {
foreach ($badpackages[$memyselfandI]['warnings'] as $warning) {
$dl->log(0, $warning[0]);
}
}
if (isset($badpackages[$memyselfandI]['errors'])) {
foreach ($badpackages[$memyselfandI]['errors'] as $error) {
if (is_array($error)) {
$dl->log(0, $error[0]);
} else {
$dl->log(0, $error->getMessage());
}
}
if (isset($this->_options['nodeps']) || isset($this->_options['force'])) {
return $this->warning(
'warning: %s should not be uninstalled, other installed packages depend ' .
'on this package');
}
return $this->raiseError(
'%s cannot be uninstalled, other installed packages depend on this package');
}
return true;
}
// first, list the immediate parents of each package to be uninstalled
$perpackagelist = array();
$allparents = array();
foreach ($params as $i => $param) {
$a = array(
'channel' => strtolower($param->getChannel()),
'package' => strtolower($param->getPackage())
);
$deps = $this->_dependencydb->getDependentPackages($a);
if ($deps) {
foreach ($deps as $d) {
$pardeps = $this->_dependencydb->getDependencies($d);
foreach ($pardeps as $dep) {
if (strtolower($dep['dep']['channel']) == $a['channel'] &&
strtolower($dep['dep']['name']) == $a['package']) {
if (!isset($perpackagelist[$a['channel'] . '/' . $a['package']])) {
$perpackagelist[$a['channel'] . '/' . $a['package']] = array();
}
$perpackagelist[$a['channel'] . '/' . $a['package']][]
= array($d['channel'] . '/' . $d['package'], $dep);
if (!isset($allparents[$d['channel'] . '/' . $d['package']])) {
$allparents[$d['channel'] . '/' . $d['package']] = array();
}
if (!isset($allparents[$d['channel'] . '/' . $d['package']][$a['channel'] . '/' . $a['package']])) {
$allparents[$d['channel'] . '/' . $d['package']][$a['channel'] . '/' . $a['package']] = array();
}
$allparents[$d['channel'] . '/' . $d['package']]
[$a['channel'] . '/' . $a['package']][]
= array($d, $dep);
}
}
}
}
}
// next, remove any packages from the parents list that are not installed
$remove = array();
foreach ($allparents as $parent => $d1) {
foreach ($d1 as $d) {
if ($this->_registry->packageExists($d[0][0]['package'], $d[0][0]['channel'])) {
continue;
}
$remove[$parent] = true;
}
}
// next remove any packages from the parents list that are not passed in for
// uninstallation
foreach ($allparents as $parent => $d1) {
foreach ($d1 as $d) {
foreach ($params as $param) {
if (strtolower($param->getChannel()) == $d[0][0]['channel'] &&
strtolower($param->getPackage()) == $d[0][0]['package']) {
// found it
continue 3;
}
}
$remove[$parent] = true;
}
}
// remove all packages whose dependencies fail
// save which ones failed for error reporting
$badchildren = array();
do {
$fail = false;
foreach ($remove as $package => $unused) {
if (!isset($allparents[$package])) {
continue;
}
foreach ($allparents[$package] as $kid => $d1) {
foreach ($d1 as $depinfo) {
if ($depinfo[1]['type'] != 'optional') {
if (isset($badchildren[$kid])) {
continue;
}
$badchildren[$kid] = true;
$remove[$kid] = true;
$fail = true;
continue 2;
}
}
}
if ($fail) {
// start over, we removed some children
continue 2;
}
}
} while ($fail);
// next, construct the list of packages that can't be uninstalled
$badpackages = array();
$save = $this->_currentPackage;
foreach ($perpackagelist as $package => $packagedeps) {
foreach ($packagedeps as $parent) {
if (!isset($remove[$parent[0]])) {
continue;
}
$packagename = $this->_registry->parsePackageName($parent[0]);
$packagename['channel'] = $this->_registry->channelAlias($packagename['channel']);
$pa = $this->_registry->getPackage($packagename['package'], $packagename['channel']);
$packagename['package'] = $pa->getPackage();
$this->_currentPackage = $packagename;
// parent is not present in uninstall list, make sure we can actually
// uninstall it (parent dep is optional)
$parentname['channel'] = $this->_registry->channelAlias($parent[1]['dep']['channel']);
$pa = $this->_registry->getPackage($parent[1]['dep']['name'], $parent[1]['dep']['channel']);
$parentname['package'] = $pa->getPackage();
$parent[1]['dep']['package'] = $parentname['package'];
$parent[1]['dep']['channel'] = $parentname['channel'];
if ($parent[1]['type'] == 'optional') {
$test = $this->_validatePackageUninstall($parent[1]['dep'], false, $dl);
if ($test !== true) {
$badpackages[$package]['warnings'][] = $test;
}
} else {
$test = $this->_validatePackageUninstall($parent[1]['dep'], true, $dl);
if ($test !== true) {
$badpackages[$package]['errors'][] = $test;
}
}
}
}
$this->_currentPackage = $save;
$dl->___uninstall_package_cache = $badpackages;
if (isset($badpackages[$memyselfandI])) {
if (isset($badpackages[$memyselfandI]['warnings'])) {
foreach ($badpackages[$memyselfandI]['warnings'] as $warning) {
$dl->log(0, $warning[0]);
}
}
if (isset($badpackages[$memyselfandI]['errors'])) {
foreach ($badpackages[$memyselfandI]['errors'] as $error) {
if (is_array($error)) {
$dl->log(0, $error[0]);
} else {
$dl->log(0, $error->getMessage());
}
}
if (isset($this->_options['nodeps']) || isset($this->_options['force'])) {
return $this->warning(
'warning: %s should not be uninstalled, other installed packages depend ' .
'on this package');
}
return $this->raiseError(
'%s cannot be uninstalled, other installed packages depend on this package');
}
}
return true;
}
function _validatePackageUninstall($dep, $required, $dl)
{
$depname = $this->_registry->parsedPackageNameToString($dep, true);
$version = $this->_registry->packageinfo($dep['package'], 'version', $dep['channel']);
if (!$version) {
return true;
}
$extra = self::_getExtraString($dep);
if (isset($dep['exclude']) && !is_array($dep['exclude'])) {
$dep['exclude'] = array($dep['exclude']);
}
if (isset($dep['conflicts'])) {
return true; // uninstall OK - these packages conflict (probably installed with --force)
}
if (!isset($dep['min']) && !isset($dep['max'])) {
if (!$required) {
return $this->warning('"' . $depname . '" can be optionally used by ' .
'installed package %s' . $extra);
}
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError('"' . $depname . '" is required by ' .
'installed package %s' . $extra);
}
return $this->warning('warning: "' . $depname . '" is required by ' .
'installed package %s' . $extra);
}
$fail = false;
if (isset($dep['min']) && version_compare($version, $dep['min'], '>=')) {
$fail = true;
}
if (isset($dep['max']) && version_compare($version, $dep['max'], '<=')) {
$fail = true;
}
// we re-use this variable, preserve the original value
$saverequired = $required;
if (!$required) {
return $this->warning($depname . $extra . ' can be optionally used by installed package' .
' "%s"');
}
if (!isset($this->_options['nodeps']) && !isset($this->_options['force'])) {
return $this->raiseError($depname . $extra . ' is required by installed package' .
' "%s"');
}
return $this->raiseError('warning: ' . $depname . $extra .
' is required by installed package "%s"');
}
/**
* validate a downloaded package against installed packages
*
* As of PEAR 1.4.3, this will only validate
*
* @param array|PEAR_Downloader_Package|PEAR_PackageFile_v1|PEAR_PackageFile_v2
* $pkg package identifier (either
* array('package' => blah, 'channel' => blah) or an array with
* index 'info' referencing an object)
* @param PEAR_Downloader $dl
* @param array $params full list of packages to install
* @return true|PEAR_Error
*/
function validatePackage($pkg, &$dl, $params = array())
{
if (is_array($pkg) && isset($pkg['info'])) {
$deps = $this->_dependencydb->getDependentPackageDependencies($pkg['info']);
} else {
$deps = $this->_dependencydb->getDependentPackageDependencies($pkg);
}
$fail = false;
if ($deps) {
if (!class_exists('PEAR_Downloader_Package')) {
require_once 'PEAR/Downloader/Package.php';
}
$dp = new PEAR_Downloader_Package($dl);
if (is_object($pkg)) {
$dp->setPackageFile($pkg);
} else {
$dp->setDownloadURL($pkg);
}
PEAR::pushErrorHandling(PEAR_ERROR_RETURN);
foreach ($deps as $channel => $info) {
foreach ($info as $package => $ds) {
foreach ($params as $packd) {
if (strtolower($packd->getPackage()) == strtolower($package) &&
$packd->getChannel() == $channel) {
$dl->log(3, 'skipping installed package check of "' .
$this->_registry->parsedPackageNameToString(
array('channel' => $channel, 'package' => $package),
true) .
'", version "' . $packd->getVersion() . '" will be ' .
'downloaded and installed');
continue 2; // jump to next package
}
}
foreach ($ds as $d) {
$checker = new PEAR_Dependency2($this->_config, $this->_options,
array('channel' => $channel, 'package' => $package), $this->_state);
$dep = $d['dep'];
$required = $d['type'] == 'required';
$ret = $checker->_validatePackageDownload($dep, $required, array(&$dp));
if (is_array($ret)) {
$dl->log(0, $ret[0]);
} elseif (PEAR::isError($ret)) {
$dl->log(0, $ret->getMessage());
$fail = true;
}
}
}
}
PEAR::popErrorHandling();
}
if ($fail) {
return $this->raiseError(
'%s cannot be installed, conflicts with installed packages');
}
return true;
}
/**
* validate a package.xml 1.0 dependency
*/
function validateDependency1($dep, $params = array())
{
if (!isset($dep['optional'])) {
$dep['optional'] = 'no';
}
list($newdep, $type) = self::normalizeDep($dep);
if (!$newdep) {
return $this->raiseError("Invalid Dependency");
}
if (method_exists($this, "validate{$type}Dependency")) {
return $this->{"validate{$type}Dependency"}($newdep, $dep['optional'] == 'no',
$params, true);
}
}
/**
* Convert a 1.0 dep into a 2.0 dep
*/
static function normalizeDep($dep)
{
$types = array(
'pkg' => 'Package',
'ext' => 'Extension',
'os' => 'Os',
'php' => 'Php'
);
if (!isset($types[$dep['type']])) {
return array(false, false);
}
$type = $types[$dep['type']];
$newdep = array();
switch ($type) {
case 'Package' :
$newdep['channel'] = 'pear.php.net';
case 'Extension' :
case 'Os' :
$newdep['name'] = $dep['name'];
break;
}
$dep['rel'] = PEAR_Dependency2::signOperator($dep['rel']);
switch ($dep['rel']) {
case 'has' :
return array($newdep, $type);
break;
case 'not' :
$newdep['conflicts'] = true;
break;
case '>=' :
case '>' :
$newdep['min'] = $dep['version'];
if ($dep['rel'] == '>') {
$newdep['exclude'] = $dep['version'];
}
break;
case '<=' :
case '<' :
$newdep['max'] = $dep['version'];
if ($dep['rel'] == '<') {
$newdep['exclude'] = $dep['version'];
}
break;
case 'ne' :
case '!=' :
$newdep['min'] = '0';
$newdep['max'] = '100000';
$newdep['exclude'] = $dep['version'];
break;
case '==' :
$newdep['min'] = $dep['version'];
$newdep['max'] = $dep['version'];
break;
}
if ($type == 'Php') {
if (!isset($newdep['min'])) {
$newdep['min'] = '4.4.0';
}
if (!isset($newdep['max'])) {
$newdep['max'] = '6.0.0';
}
}
return array($newdep, $type);
}
/**
* Converts text comparing operators to them sign equivalents
*
* Example: 'ge' to '>='
*
* @access public
* @param string Operator
* @return string Sign equivalent
*/
static function signOperator($operator)
{
switch($operator) {
case 'lt': return '<';
case 'le': return '<=';
case 'gt': return '>';
case 'ge': return '>=';
case 'eq': return '==';
case 'ne': return '!=';
default:
return $operator;
}
}
function raiseError($msg)
{
if (isset($this->_options['ignore-errors'])) {
return $this->warning($msg);
}
return PEAR::raiseError(sprintf($msg, $this->_registry->parsedPackageNameToString(
$this->_currentPackage, true)));
}
function warning($msg)
{
return array(sprintf($msg, $this->_registry->parsedPackageNameToString(
$this->_currentPackage, true)));
}
}
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