<?php
/**
 * @package sapphire
 * @subpackage tests
 */
class MemberTest extends FunctionalTest {
	static $fixture_file = 'sapphire/tests/security/MemberTest.yml';
	
	function setUp() {
		parent::setUp();
		
		Member::set_password_validator(null);
	}
	
	function testDefaultPasswordEncryptionOnMember() {
		$member = new Member();
		$member->Password = 'mypassword';
		$member->write();
		$this->assertEquals(
			$member->PasswordEncryption, 
			Security::get_password_encryption_algorithm(),
			'Password encryption is set for new member records on first write'
		);
	}
	
	function testDefaultPasswordEncryptionDoesntChangeExistingMembers() {
		$member = new Member();
		$member->Password = 'mypassword';
		$member->PasswordEncryption = 'sha1_v2.4';
		$member->write();
		
		Security::set_password_encryption_algorithm('none');

		$member->Password = 'mynewpassword';
		$member->write();
		
		$this->assertEquals(
			$member->PasswordEncryption, 
			'sha1_v2.4'
		);
		$this->assertTrue($member->checkPassword("mynewpassword"));
	}
	
	function testSetPassword() {
		$member = $this->objFromFixture('Member', 'test');
		$member->Password = "test1";
		$member->write();
		$this->assertTrue($member->checkPassword("test1"));
	}
	
	/**
	 * Test that password changes are logged properly
	 */
	function testPasswordChangeLogging() {
		$member = $this->objFromFixture('Member', 'test');
		$this->assertNotNull($member);
		$member->Password = "test1";
		$member->write();
	
		$member->Password = "test2";
		$member->write();
	
		$member->Password = "test3";
		$member->write();
	
		$passwords = DataObject::get("MemberPassword", "\"MemberID\" = $member->ID", "\"Created\" DESC, \"ID\" DESC")->getIterator();
		$this->assertNotNull($passwords);
		$record = $passwords->rewind();
		$this->assertTrue($record->checkPassword('test3'), "Password test3 not found in MemberRecord");
	
		$record = $passwords->next();
		$this->assertTrue($record->checkPassword('test2'), "Password test2 not found in MemberRecord");
	
		$record = $passwords->next();
		$this->assertTrue($record->checkPassword('test1'), "Password test1 not found in MemberRecord");
	
		$record = $passwords->next();
		$this->assertType('DataObject', $record);
		$this->assertTrue($record->checkPassword('1nitialPassword'), "Password 1nitialPassword not found in MemberRecord");
	}
	
	/**
	 * Test that changed passwords will send an email
	 */
	function testChangedPasswordEmaling() {
		$this->clearEmails();
	
		$member = $this->objFromFixture('Member', 'test');
		$this->assertNotNull($member);
		$valid = $member->changePassword('32asDF##$$%%');
		$this->assertTrue($valid->valid());
		/*
		$this->assertEmailSent("sam@silverstripe.com", null, "/changed password/", '/sam@silverstripe\.com.*32asDF##\$\$%%/');
		*/
	}
	
	/**
	 * Test that passwords validate against NZ e-government guidelines
	 *  - don't allow the use of the last 6 passwords
	 *  - require at least 3 of lowercase, uppercase, digits and punctuation
	 *  - at least 7 characters long
	 */
	function testValidatePassword() {
		$member = $this->objFromFixture('Member', 'test');
		$this->assertNotNull($member);
		
		Member::set_password_validator(new NZGovtPasswordValidator());
	
		// BAD PASSWORDS
		
		$valid = $member->changePassword('shorty');
		$this->assertFalse($valid->valid());
		$this->assertContains("TOO_SHORT", $valid->codeList());
	
		$valid = $member->changePassword('longone');
		$this->assertNotContains("TOO_SHORT", $valid->codeList());
		$this->assertContains("LOW_CHARACTER_STRENGTH", $valid->codeList());
		$this->assertFalse($valid->valid());
	
		$valid = $member->changePassword('w1thNumb3rs');
		$this->assertNotContains("LOW_CHARACTER_STRENGTH", $valid->codeList());
		$this->assertTrue($valid->valid());
		
		// Clear out the MemberPassword table to ensure that the system functions properly in that situation
		DB::query("DELETE FROM \"MemberPassword\"");
	
		// GOOD PASSWORDS
		
		$valid = $member->changePassword('withSym###Ls');
		$this->assertNotContains("LOW_CHARACTER_STRENGTH", $valid->codeList());
		$this->assertTrue($valid->valid());
	
		$valid = $member->changePassword('withSym###Ls2');
		$this->assertTrue($valid->valid());
	
		$valid = $member->changePassword('withSym###Ls3');
		$this->assertTrue($valid->valid());
	
		$valid = $member->changePassword('withSym###Ls4');
		$this->assertTrue($valid->valid());
	
		$valid = $member->changePassword('withSym###Ls5');
		$this->assertTrue($valid->valid());
	
		$valid = $member->changePassword('withSym###Ls6');
		$this->assertTrue($valid->valid());
	
		$valid = $member->changePassword('withSym###Ls7');
		$this->assertTrue($valid->valid());
	
		// CAN'T USE PASSWORDS 2-7, but I can use pasword 1
	
		$valid = $member->changePassword('withSym###Ls2');
		$this->assertFalse($valid->valid());
		$this->assertContains("PREVIOUS_PASSWORD", $valid->codeList());
	
		$valid = $member->changePassword('withSym###Ls5');
		$this->assertFalse($valid->valid());
		$this->assertContains("PREVIOUS_PASSWORD", $valid->codeList());
	
		$valid = $member->changePassword('withSym###Ls7');
		$this->assertFalse($valid->valid());
		$this->assertContains("PREVIOUS_PASSWORD", $valid->codeList());
		
		$valid = $member->changePassword('withSym###Ls');
		$this->assertTrue($valid->valid());
		
		// HAVING DONE THAT, PASSWORD 2 is now available from the list
	
		$valid = $member->changePassword('withSym###Ls2');
		$this->assertTrue($valid->valid());
	
		$valid = $member->changePassword('withSym###Ls3');
		$this->assertTrue($valid->valid());
	
		$valid = $member->changePassword('withSym###Ls4');
		$this->assertTrue($valid->valid());
	
		Member::set_password_validator(null);
	}
	
	/**
	 * Test that the PasswordExpiry date is set when passwords are changed
	 */
	function testPasswordExpirySetting() {
		Member::set_password_expiry(90);
		
		$member = $this->objFromFixture('Member', 'test');
		$this->assertNotNull($member);
		$valid = $member->changePassword("Xx?1234234");
		$this->assertTrue($valid->valid());
		
		$expiryDate = date('Y-m-d', time() + 90*86400);		
		$this->assertEquals($expiryDate, $member->PasswordExpiry);
	
		Member::set_password_expiry(null);
		$valid = $member->changePassword("Xx?1234235");
		$this->assertTrue($valid->valid());
	
		$this->assertNull($member->PasswordExpiry);
	}
	
	function testIsPasswordExpired() {
		$member = $this->objFromFixture('Member', 'test');
		$this->assertNotNull($member);
		$this->assertFalse($member->isPasswordExpired());
	
		$member = $this->objFromFixture('Member', 'noexpiry');
		$member->PasswordExpiry = null;
		$this->assertFalse($member->isPasswordExpired());
	
		$member = $this->objFromFixture('Member', 'expiredpassword');
		$this->assertTrue($member->isPasswordExpired());
		
		// Check the boundary conditions
		// If PasswordExpiry == today, then it's expired
		$member->PasswordExpiry = date('Y-m-d');
		$this->assertTrue($member->isPasswordExpired());
	
		// If PasswordExpiry == tomorrow, then it's not
		$member->PasswordExpiry = date('Y-m-d', time() + 86400);
		$this->assertFalse($member->isPasswordExpired());
		
	}
	
	function testInGroups() {
		$staffmember = $this->objFromFixture('Member', 'staffmember');
		$managementmember = $this->objFromFixture('Member', 'managementmember');
		$accountingmember = $this->objFromFixture('Member', 'accountingmember');
		$ceomember = $this->objFromFixture('Member', 'ceomember');
		
		$staffgroup = $this->objFromFixture('Group', 'staffgroup');
		$managementgroup = $this->objFromFixture('Group', 'managementgroup');
		$accountinggroup = $this->objFromFixture('Group', 'accountinggroup');
		$ceogroup = $this->objFromFixture('Group', 'ceogroup');
		
		$this->assertTrue(
			$staffmember->inGroups(array($staffgroup, $managementgroup)),
			'inGroups() succeeds if a membership is detected on one of many passed groups'
		);
		$this->assertFalse(
			$staffmember->inGroups(array($ceogroup, $managementgroup)),
			'inGroups() fails if a membership is detected on none of the passed groups'
		);
		$this->assertFalse(
			$ceomember->inGroups(array($staffgroup, $managementgroup), true),
			'inGroups() fails if no direct membership is detected on any of the passed groups (in strict mode)'
		);
	}
	
	function testInGroup() {
		$staffmember = $this->objFromFixture('Member', 'staffmember');
		$managementmember = $this->objFromFixture('Member', 'managementmember');
		$accountingmember = $this->objFromFixture('Member', 'accountingmember');
		$ceomember = $this->objFromFixture('Member', 'ceomember');
		
		$staffgroup = $this->objFromFixture('Group', 'staffgroup');
		$managementgroup = $this->objFromFixture('Group', 'managementgroup');
		$accountinggroup = $this->objFromFixture('Group', 'accountinggroup');
		$ceogroup = $this->objFromFixture('Group', 'ceogroup');
		
		$this->assertTrue(
			$staffmember->inGroup($staffgroup),
			'Direct group membership is detected'
		);
		$this->assertTrue(
			$managementmember->inGroup($staffgroup),
			'Users of child group are members of a direct parent group (if not in strict mode)'
		);
		$this->assertTrue(
			$accountingmember->inGroup($staffgroup),
			'Users of child group are members of a direct parent group (if not in strict mode)'
		);
		$this->assertTrue(
			$ceomember->inGroup($staffgroup),
			'Users of indirect grandchild group are members of a parent group (if not in strict mode)'
		);
		$this->assertTrue(
			$ceomember->inGroup($ceogroup, true),
			'Direct group membership is dected (if in strict mode)'
		);
		$this->assertFalse(
			$ceomember->inGroup($staffgroup, true),
			'Users of child group are not members of a direct parent group (if in strict mode)'
		);
		$this->assertFalse(
			$staffmember->inGroup($managementgroup),
			'Users of parent group are not members of a direct child group'
		);
		$this->assertFalse(
			$staffmember->inGroup($ceogroup),
			'Users of parent group are not members of an indirect grandchild group'
		);
		$this->assertFalse(
			$accountingmember->inGroup($managementgroup),
			'Users of group are not members of any siblings'
		);
		$this->assertFalse(
			$staffmember->inGroup('does-not-exist'),
			'Non-existant group returns false'
		);
	}

	/**
	 * Tests that the user is able to view their own record, and in turn, they can
	 * edit and delete their own record too.
	 */
	public function testCanManipulateOwnRecord() {
		$extensions = $this->removeExtensions(Object::get_extensions('Member'));
		$member = $this->objFromFixture('Member', 'test');
		$member2 = $this->objFromFixture('Member', 'staffmember');
		
		$this->session()->inst_set('loggedInAs', null);
		
		/* Not logged in, you can't view, delete or edit the record */
		$this->assertFalse($member->canView());
		$this->assertFalse($member->canDelete());
		$this->assertFalse($member->canEdit());
		
		/* Logged in users can edit their own record */
		$this->session()->inst_set('loggedInAs', $member->ID);
		$this->assertTrue($member->canView());
		$this->assertTrue($member->canDelete());
		$this->assertTrue($member->canEdit());
		
		/* Other uses cannot view, delete or edit others records */
		$this->session()->inst_set('loggedInAs', $member2->ID);
		$this->assertFalse($member->canView());
		$this->assertFalse($member->canDelete());
		$this->assertFalse($member->canEdit());

		$this->addExtensions($extensions);
		$this->session()->inst_set('loggedInAs', null);
	}

	public function testAuthorisedMembersCanManipulateOthersRecords() {
		$extensions = $this->removeExtensions(Object::get_extensions('Member'));
		$member = $this->objFromFixture('Member', 'test');
		$member2 = $this->objFromFixture('Member', 'staffmember');
		
		/* Group members with SecurityAdmin permissions can manipulate other records */
		$this->session()->inst_set('loggedInAs', $member->ID);
		$this->assertTrue($member2->canView());
		$this->assertTrue($member2->canDelete());
		$this->assertTrue($member2->canEdit());
		
		$this->addExtensions($extensions);
		$this->session()->inst_set('loggedInAs', null);
	}

	public function testDecoratedCan() {
		$extensions = $this->removeExtensions(Object::get_extensions('Member'));
		$member = $this->objFromFixture('Member', 'test');
		
		/* Normal behaviour is that you can't view a member unless canView() on an extension returns true */
		$this->assertFalse($member->canView());
		$this->assertFalse($member->canDelete());
		$this->assertFalse($member->canEdit());
		
		/* Apply a decorator that allows viewing in any case (most likely the case for member profiles) */
		Object::add_extension('Member', 'MemberTest_ViewingAllowedExtension');
		$member2 = $this->objFromFixture('Member', 'staffmember');
		
		$this->assertTrue($member2->canView());
		$this->assertFalse($member2->canDelete());
		$this->assertFalse($member2->canEdit());

		/* Apply a decorator that denies viewing of the Member */
		Object::remove_extension('Member', 'MemberTest_ViewingAllowedExtension');
		Object::add_extension('Member', 'MemberTest_ViewingDeniedExtension');
		$member3 = $this->objFromFixture('Member', 'managementmember');
		
		$this->assertFalse($member3->canView());
		$this->assertFalse($member3->canDelete());
		$this->assertFalse($member3->canEdit());

		/* Apply a decorator that allows viewing and editing but denies deletion */
		Object::remove_extension('Member', 'MemberTest_ViewingDeniedExtension');
		Object::add_extension('Member', 'MemberTest_EditingAllowedDeletingDeniedExtension');
		$member4 = $this->objFromFixture('Member', 'accountingmember');
		
		$this->assertTrue($member4->canView());
		$this->assertFalse($member4->canDelete());
		$this->assertTrue($member4->canEdit());
		
		Object::remove_extension('Member', 'MemberTest_EditingAllowedDeletingDeniedExtension');
		$this->addExtensions($extensions);
	}

	/**
	 * Add the given array of member extensions as class names.
	 * This is useful for re-adding extensions after being removed
	 * in a test case to produce an unbiased test.
	 * 
	 * @param array $extensions
	 * @return array The added extensions
	 */
	protected function addExtensions($extensions) {
		if($extensions) foreach($extensions as $extension) {
			Object::add_extension('Member', $extension);
		}
		return $extensions;
	}

	/**
	 * Remove given extensions from Member. This is useful for
	 * removing extensions that could produce a biased
	 * test result, as some extensions applied by project
	 * code or modules can do this.
	 * 
	 * @param array $extensions
	 * @return array The removed extensions
	 */
	protected function removeExtensions($extensions) {
		if($extensions) foreach($extensions as $extension) {
			Object::remove_extension('Member', $extension);
		}
		return $extensions;
	}

}
class MemberTest_ViewingAllowedExtension extends DataObjectDecorator implements TestOnly {

	public function canView() {
		return true;
	}

}
class MemberTest_ViewingDeniedExtension extends DataObjectDecorator implements TestOnly {

	public function canView() {
		return false;
	}

}
class MemberTest_EditingAllowedDeletingDeniedExtension extends DataObjectDecorator implements TestOnly {

	public function canView() {
		return true;
	}

	public function canEdit() {
		return true;
	}

	public function canDelete() {
		return false;
	}

}