487 lines
16 KiB
PHP
Executable file
487 lines
16 KiB
PHP
Executable file
<?php
|
|
//
|
|
// +----------------------------------------------------------------------+
|
|
// | PHP Version 5 |
|
|
// +----------------------------------------------------------------------+
|
|
// | Copyright (c) 1997-2004 The PHP Group |
|
|
// +----------------------------------------------------------------------+
|
|
// | This source file is subject to version 3.0 of the PHP license, |
|
|
// | that is bundled with this package in the file LICENSE, and is |
|
|
// | available through the world-wide-web at the following url: |
|
|
// | http://www.php.net/license/3_0.txt. |
|
|
// | If you did not receive a copy of the PHP license and are unable to |
|
|
// | obtain it through the world-wide-web, please send a note to |
|
|
// | license@php.net so we can mail you a copy immediately. |
|
|
// +----------------------------------------------------------------------+
|
|
// | Authors: Tomas V.V.Cox <cox@idecnet.com> |
|
|
// | Stig Bakken <ssb@php.net> |
|
|
// +----------------------------------------------------------------------+
|
|
//
|
|
// $Id: Dependency.php,v 1.36.4.1 2004/12/27 07:04:19 cellog Exp $
|
|
|
|
require_once "PEAR.php";
|
|
|
|
define('PEAR_DEPENDENCY_MISSING', -1);
|
|
define('PEAR_DEPENDENCY_CONFLICT', -2);
|
|
define('PEAR_DEPENDENCY_UPGRADE_MINOR', -3);
|
|
define('PEAR_DEPENDENCY_UPGRADE_MAJOR', -4);
|
|
define('PEAR_DEPENDENCY_BAD_DEPENDENCY', -5);
|
|
define('PEAR_DEPENDENCY_MISSING_OPTIONAL', -6);
|
|
define('PEAR_DEPENDENCY_CONFLICT_OPTIONAL', -7);
|
|
define('PEAR_DEPENDENCY_UPGRADE_MINOR_OPTIONAL', -8);
|
|
define('PEAR_DEPENDENCY_UPGRADE_MAJOR_OPTIONAL', -9);
|
|
|
|
/**
|
|
* Dependency check for PEAR packages
|
|
*
|
|
* The class is based on the dependency RFC that can be found at
|
|
* http://cvs.php.net/cvs.php/pearweb/rfc. It requires PHP >= 4.1
|
|
*
|
|
* @author Tomas V.V.Vox <cox@idecnet.com>
|
|
* @author Stig Bakken <ssb@php.net>
|
|
*/
|
|
class PEAR_Dependency
|
|
{
|
|
// {{{ constructor
|
|
/**
|
|
* Constructor
|
|
*
|
|
* @access public
|
|
* @param object Registry object
|
|
* @return void
|
|
*/
|
|
function PEAR_Dependency(&$registry)
|
|
{
|
|
$this->registry = &$registry;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ callCheckMethod()
|
|
|
|
/**
|
|
* This method maps the XML dependency definition to the
|
|
* corresponding one from PEAR_Dependency
|
|
*
|
|
* <pre>
|
|
* $opts => Array
|
|
* (
|
|
* [type] => pkg
|
|
* [rel] => ge
|
|
* [version] => 3.4
|
|
* [name] => HTML_Common
|
|
* [optional] => false
|
|
* )
|
|
* </pre>
|
|
*
|
|
* @param string Error message
|
|
* @param array Options
|
|
* @return boolean
|
|
*/
|
|
function callCheckMethod(&$errmsg, $opts)
|
|
{
|
|
$rel = isset($opts['rel']) ? $opts['rel'] : 'has';
|
|
$req = isset($opts['version']) ? $opts['version'] : null;
|
|
$name = isset($opts['name']) ? $opts['name'] : null;
|
|
$opt = (isset($opts['optional']) && $opts['optional'] == 'yes') ?
|
|
$opts['optional'] : null;
|
|
$errmsg = '';
|
|
switch ($opts['type']) {
|
|
case 'pkg':
|
|
return $this->checkPackage($errmsg, $name, $req, $rel, $opt);
|
|
break;
|
|
case 'ext':
|
|
return $this->checkExtension($errmsg, $name, $req, $rel, $opt);
|
|
break;
|
|
case 'php':
|
|
return $this->checkPHP($errmsg, $req, $rel);
|
|
break;
|
|
case 'prog':
|
|
return $this->checkProgram($errmsg, $name);
|
|
break;
|
|
case 'os':
|
|
return $this->checkOS($errmsg, $name);
|
|
break;
|
|
case 'sapi':
|
|
return $this->checkSAPI($errmsg, $name);
|
|
break;
|
|
case 'zend':
|
|
return $this->checkZend($errmsg, $name);
|
|
break;
|
|
default:
|
|
return "'{$opts['type']}' dependency type not supported";
|
|
}
|
|
}
|
|
|
|
// }}}
|
|
// {{{ checkPackage()
|
|
|
|
/**
|
|
* Package dependencies check method
|
|
*
|
|
* @param string $errmsg Empty string, it will be populated with an error message, if any
|
|
* @param string $name Name of the package to test
|
|
* @param string $req The package version required
|
|
* @param string $relation How to compare versions with each other
|
|
* @param bool $opt Whether the relationship is optional
|
|
*
|
|
* @return mixed bool false if no error or the error string
|
|
*/
|
|
function checkPackage(&$errmsg, $name, $req = null, $relation = 'has',
|
|
$opt = false)
|
|
{
|
|
if (is_string($req) && substr($req, 0, 2) == 'v.') {
|
|
$req = substr($req, 2);
|
|
}
|
|
switch ($relation) {
|
|
case 'has':
|
|
if (!$this->registry->packageExists($name)) {
|
|
if ($opt) {
|
|
$errmsg = "package `$name' is recommended to utilize some features.";
|
|
return PEAR_DEPENDENCY_MISSING_OPTIONAL;
|
|
}
|
|
$errmsg = "requires package `$name'";
|
|
return PEAR_DEPENDENCY_MISSING;
|
|
}
|
|
return false;
|
|
case 'not':
|
|
if ($this->registry->packageExists($name)) {
|
|
$errmsg = "conflicts with package `$name'";
|
|
return PEAR_DEPENDENCY_CONFLICT;
|
|
}
|
|
return false;
|
|
case 'lt':
|
|
case 'le':
|
|
case 'eq':
|
|
case 'ne':
|
|
case 'ge':
|
|
case 'gt':
|
|
$version = $this->registry->packageInfo($name, 'version');
|
|
if (!$this->registry->packageExists($name)
|
|
|| !version_compare("$version", "$req", $relation))
|
|
{
|
|
$code = $this->codeFromRelation($relation, $version, $req, $opt);
|
|
if ($opt) {
|
|
$errmsg = "package `$name' version " . $this->signOperator($relation) .
|
|
" $req is recommended to utilize some features.";
|
|
if ($version) {
|
|
$errmsg .= " Installed version is $version";
|
|
}
|
|
return $code;
|
|
}
|
|
$errmsg = "requires package `$name' " .
|
|
$this->signOperator($relation) . " $req";
|
|
return $code;
|
|
}
|
|
return false;
|
|
}
|
|
$errmsg = "relation '$relation' with requirement '$req' is not supported (name=$name)";
|
|
return PEAR_DEPENDENCY_BAD_DEPENDENCY;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ checkPackageUninstall()
|
|
|
|
/**
|
|
* Check package dependencies on uninstall
|
|
*
|
|
* @param string $error The resultant error string
|
|
* @param string $warning The resultant warning string
|
|
* @param string $name Name of the package to test
|
|
*
|
|
* @return bool true if there were errors
|
|
*/
|
|
function checkPackageUninstall(&$error, &$warning, $package)
|
|
{
|
|
$error = null;
|
|
$packages = $this->registry->listPackages();
|
|
foreach ($packages as $pkg) {
|
|
if ($pkg == $package) {
|
|
continue;
|
|
}
|
|
$deps = $this->registry->packageInfo($pkg, 'release_deps');
|
|
if (empty($deps)) {
|
|
continue;
|
|
}
|
|
foreach ($deps as $dep) {
|
|
if ($dep['type'] == 'pkg' && strcasecmp($dep['name'], $package) == 0) {
|
|
if ($dep['rel'] == 'ne' || $dep['rel'] == 'not') {
|
|
continue;
|
|
}
|
|
if (isset($dep['optional']) && $dep['optional'] == 'yes') {
|
|
$warning .= "\nWarning: Package '$pkg' optionally depends on '$package'";
|
|
} else {
|
|
$error .= "Package '$pkg' depends on '$package'\n";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return ($error) ? true : false;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ checkExtension()
|
|
|
|
/**
|
|
* Extension dependencies check method
|
|
*
|
|
* @param string $name Name of the extension to test
|
|
* @param string $req_ext_ver Required extension version to compare with
|
|
* @param string $relation How to compare versions with eachother
|
|
* @param bool $opt Whether the relationship is optional
|
|
*
|
|
* @return mixed bool false if no error or the error string
|
|
*/
|
|
function checkExtension(&$errmsg, $name, $req = null, $relation = 'has',
|
|
$opt = false)
|
|
{
|
|
if ($relation == 'not') {
|
|
if (extension_loaded($name)) {
|
|
$errmsg = "conflicts with PHP extension '$name'";
|
|
return PEAR_DEPENDENCY_CONFLICT;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (!extension_loaded($name)) {
|
|
if ($relation == 'not') {
|
|
return false;
|
|
}
|
|
if ($opt) {
|
|
$errmsg = "'$name' PHP extension is recommended to utilize some features";
|
|
return PEAR_DEPENDENCY_MISSING_OPTIONAL;
|
|
}
|
|
$errmsg = "'$name' PHP extension is not installed";
|
|
return PEAR_DEPENDENCY_MISSING;
|
|
}
|
|
if ($relation == 'has') {
|
|
return false;
|
|
}
|
|
$code = false;
|
|
if (is_string($req) && substr($req, 0, 2) == 'v.') {
|
|
$req = substr($req, 2);
|
|
}
|
|
$ext_ver = phpversion($name);
|
|
$operator = $relation;
|
|
// Force params to be strings, otherwise the comparation will fail (ex. 0.9==0.90)
|
|
if (!version_compare("$ext_ver", "$req", $operator)) {
|
|
$errmsg = "'$name' PHP extension version " .
|
|
$this->signOperator($operator) . " $req is required";
|
|
$code = $this->codeFromRelation($relation, $ext_ver, $req, $opt);
|
|
if ($opt) {
|
|
$errmsg = "'$name' PHP extension version " . $this->signOperator($operator) .
|
|
" $req is recommended to utilize some features";
|
|
return $code;
|
|
}
|
|
}
|
|
return $code;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ checkOS()
|
|
|
|
/**
|
|
* Operating system dependencies check method
|
|
*
|
|
* @param string $os Name of the operating system
|
|
*
|
|
* @return mixed bool false if no error or the error string
|
|
*/
|
|
function checkOS(&$errmsg, $os)
|
|
{
|
|
// XXX Fixme: Implement a more flexible way, like
|
|
// comma separated values or something similar to PEAR_OS
|
|
static $myos;
|
|
if (empty($myos)) {
|
|
include_once "OS/Guess.php";
|
|
$myos = new OS_Guess();
|
|
}
|
|
// only 'has' relation is currently supported
|
|
if ($myos->matchSignature($os)) {
|
|
return false;
|
|
}
|
|
$errmsg = "'$os' operating system not supported";
|
|
return PEAR_DEPENDENCY_CONFLICT;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ checkPHP()
|
|
|
|
/**
|
|
* PHP version check method
|
|
*
|
|
* @param string $req which version to compare
|
|
* @param string $relation how to compare the version
|
|
*
|
|
* @return mixed bool false if no error or the error string
|
|
*/
|
|
function checkPHP(&$errmsg, $req, $relation = 'ge')
|
|
{
|
|
// this would be a bit stupid, but oh well :)
|
|
if ($relation == 'has') {
|
|
return false;
|
|
}
|
|
if ($relation == 'not') {
|
|
$errmsg = 'Invalid dependency - "not" is not allowed for php dependencies, ' .
|
|
'php cannot conflict with itself';
|
|
return PEAR_DEPENDENCY_BAD_DEPENDENCY;
|
|
}
|
|
if (substr($req, 0, 2) == 'v.') {
|
|
$req = substr($req,2, strlen($req) - 2);
|
|
}
|
|
$php_ver = phpversion();
|
|
$operator = $relation;
|
|
if (!version_compare("$php_ver", "$req", $operator)) {
|
|
$errmsg = "PHP version " . $this->signOperator($operator) .
|
|
" $req is required";
|
|
return PEAR_DEPENDENCY_CONFLICT;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ checkProgram()
|
|
|
|
/**
|
|
* External program check method. Looks for executable files in
|
|
* directories listed in the PATH environment variable.
|
|
*
|
|
* @param string $program which program to look for
|
|
*
|
|
* @return mixed bool false if no error or the error string
|
|
*/
|
|
function checkProgram(&$errmsg, $program)
|
|
{
|
|
// XXX FIXME honor safe mode
|
|
$exe_suffix = OS_WINDOWS ? '.exe' : '';
|
|
$path_elements = explode(PATH_SEPARATOR, getenv('PATH'));
|
|
foreach ($path_elements as $dir) {
|
|
$file = $dir . DIRECTORY_SEPARATOR . $program . $exe_suffix;
|
|
if (@file_exists($file) && @is_executable($file)) {
|
|
return false;
|
|
}
|
|
}
|
|
$errmsg = "'$program' program is not present in the PATH";
|
|
return PEAR_DEPENDENCY_MISSING;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ checkSAPI()
|
|
|
|
/**
|
|
* SAPI backend check method. Version comparison is not yet
|
|
* available here.
|
|
*
|
|
* @param string $name name of SAPI backend
|
|
* @param string $req which version to compare
|
|
* @param string $relation how to compare versions (currently
|
|
* hardcoded to 'has')
|
|
* @return mixed bool false if no error or the error string
|
|
*/
|
|
function checkSAPI(&$errmsg, $name, $req = null, $relation = 'has')
|
|
{
|
|
// XXX Fixme: There is no way to know if the user has or
|
|
// not other SAPI backends installed than the installer one
|
|
|
|
$sapi_backend = php_sapi_name();
|
|
// Version comparisons not supported, sapi backends don't have
|
|
// version information yet.
|
|
if ($sapi_backend == $name) {
|
|
return false;
|
|
}
|
|
$errmsg = "'$sapi_backend' SAPI backend not supported";
|
|
return PEAR_DEPENDENCY_CONFLICT;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ checkZend()
|
|
|
|
/**
|
|
* Zend version check method
|
|
*
|
|
* @param string $req which version to compare
|
|
* @param string $relation how to compare the version
|
|
*
|
|
* @return mixed bool false if no error or the error string
|
|
*/
|
|
function checkZend(&$errmsg, $req, $relation = 'ge')
|
|
{
|
|
if (substr($req, 0, 2) == 'v.') {
|
|
$req = substr($req,2, strlen($req) - 2);
|
|
}
|
|
$zend_ver = zend_version();
|
|
$operator = substr($relation,0,2);
|
|
if (!version_compare("$zend_ver", "$req", $operator)) {
|
|
$errmsg = "Zend version " . $this->signOperator($operator) .
|
|
" $req is required";
|
|
return PEAR_DEPENDENCY_CONFLICT;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ signOperator()
|
|
|
|
/**
|
|
* Converts text comparing operators to them sign equivalents
|
|
*
|
|
* Example: 'ge' to '>='
|
|
*
|
|
* @access public
|
|
* @param string Operator
|
|
* @return string Sign equivalent
|
|
*/
|
|
function signOperator($operator)
|
|
{
|
|
switch($operator) {
|
|
case 'lt': return '<';
|
|
case 'le': return '<=';
|
|
case 'gt': return '>';
|
|
case 'ge': return '>=';
|
|
case 'eq': return '==';
|
|
case 'ne': return '!=';
|
|
default:
|
|
return $operator;
|
|
}
|
|
}
|
|
|
|
// }}}
|
|
// {{{ codeFromRelation()
|
|
|
|
/**
|
|
* Convert relation into corresponding code
|
|
*
|
|
* @access public
|
|
* @param string Relation
|
|
* @param string Version
|
|
* @param string Requirement
|
|
* @param bool Optional dependency indicator
|
|
* @return integer
|
|
*/
|
|
function codeFromRelation($relation, $version, $req, $opt = false)
|
|
{
|
|
$code = PEAR_DEPENDENCY_BAD_DEPENDENCY;
|
|
switch ($relation) {
|
|
case 'gt': case 'ge': case 'eq':
|
|
// upgrade
|
|
$have_major = preg_replace('/\D.*/', '', $version);
|
|
$need_major = preg_replace('/\D.*/', '', $req);
|
|
if ($need_major > $have_major) {
|
|
$code = $opt ? PEAR_DEPENDENCY_UPGRADE_MAJOR_OPTIONAL :
|
|
PEAR_DEPENDENCY_UPGRADE_MAJOR;
|
|
} else {
|
|
$code = $opt ? PEAR_DEPENDENCY_UPGRADE_MINOR_OPTIONAL :
|
|
PEAR_DEPENDENCY_UPGRADE_MINOR;
|
|
}
|
|
break;
|
|
case 'lt': case 'le': case 'ne':
|
|
$code = $opt ? PEAR_DEPENDENCY_CONFLICT_OPTIONAL :
|
|
PEAR_DEPENDENCY_CONFLICT;
|
|
break;
|
|
}
|
|
return $code;
|
|
}
|
|
|
|
// }}}
|
|
}
|
|
?>
|