N°4789 - Parse datamodel module.xxx.php files instead of interpreting them (#746)

* N°4789 - Parse datamodel module.xxx.php files instead of interpreting them - refactoring all in a dedicated service first

* N°4789 - fix broken setup + tests

* N°4789 - replace legacy eval by module file parsing

* N°4789 - handle constants and if conditional structures

* N°4789 - compute boolean expressions

* N°4789 - make autoselect and dependencies work as well

* cleanup

* N°4789 - fix BeforeWritingConfig calls during setup

* N°4789 - refactor and split in ModuleDiscoveryEvaluationService + handle ModuleInstallerAPI methods calls during setup

* N°4789 - PR review changes with Romain

* PR review + code cleanup + added usecases and test cover

* temp evaluation work

* replace eval by iTop custom evaluation classes

* move PhpParser/Evaluation classes in a specific namespave + composer dumpautoload

* fix broken setup

* fix broken setup

* complete Evaluators list + autoload

* cleanup useless testing resources

* cleanup + replace last eval call in VariableEvaluator

* fix few Evaluators code

* enhance nikic evaluators + test with/without nikic lib

* Evaluator fixes/enhancements + tests

* bump to nikic fork temporarly

* bump nikic-parser fork + use only nikic fork  evaluation + cleanup itop redondant evaluators

* review with Romain: use distinct whitelists in setup time/runtime + move ModuleFileParser internal logic into ModuleFileReader

* PhpExpressionEvaluator used via constructor and not as a service

* dumpautoload again after rebase

tests/php-unit-tests/unitary-tests/setup/modulediscovery/resources/module.authent-ldap.php

@@ -0,0 +1,80 @@
+<?php
+
+
+// Until we develop a mean to adress this within the setup, let's check that this instance
+// of PHP has the php_ldap extension
+//
+if (function_exists('ldap_connect'))
+{
+
+SetupWebPage::AddModule(
+	__FILE__, // Path to the current file, all other file names are relative to the directory containing this file
+	'authent-ldap/3.3.0',
+	array(
+		// Identification
+		//
+		'label' => 'User authentication based on LDAP',
+		'category' => 'authentication',
+
+		// Setup
+		//
+		'dependencies' => array(
+		),
+		'mandatory' => false,
+		'visible' => true,
+		'installer' => 'AuthentLDAPInstaller',
+
+		// Components
+		//
+		'datamodel' => array(
+		),
+		'data.struct' => array(
+			//'data.struct.authent-ldap.xml',
+		),
+		'data.sample' => array(
+			//'data.sample.authent-ldap.xml',
+		),
+
+		// Documentation
+		//
+		'doc.manual_setup' => '',
+		'doc.more_information' => '',
+
+		// Default settings
+		//
+		'settings' => array(
+			'uri' => 'ldap://localhost', // URI with host or IP address of your LDAP server
+			'default_user' => '', // User and password used for initial "Anonymous" bind to LDAP
+			'default_pwd' => '',  // Leave both blank, if anonymous (read-only) bind is allowed
+			'base_dn' => 'dc=yourcompany,dc=com', // Base DN for User queries, adjust it to your LDAP schema
+			'user_query' => '(&(uid=%1$s)(inetuserstatus=ACTIVE))', // Query used to retrieve each user %1$s => iTop login
+																	// For Windows AD use (samaccountname=%1$s) or (userprincipalname=%1$s)
+
+			// Some extra LDAP options, refer to: http://www.php.net/manual/en/function.ldap-set-option.php for more info
+			'options' => array(
+				LDAP_OPT_PROTOCOL_VERSION => 3,
+				LDAP_OPT_REFERRALS => 0,
+			),
+			'start_tls' => false,
+			'debug' => false,
+			'servers' => array(),
+		),
+	)
+);
+
+// Module installation handler
+//
+class AuthentLDAPInstaller extends ModuleInstallerAPI
+{
+	public static function AfterDataLoad(Config $oConfiguration, $sPreviousVersion, $sCurrentVersion)
+	{
+
+	}
+
+	public static function BeforeWritingConfig(Config $oConfiguration)
+	{
+
+	}
+}
+
+} // if (function_exists('ldap_connect'))