Merge remote-tracking branch 'upstream/master'

2 files changed, 647 insertions, 0 deletions

diff --git a/tests/security/LoginManagerTest.php b/tests/security/LoginManagerTest.php
new file mode 100644
index 00000000..f26cd1eb
--- /dev/null
+++ b/tests/security/LoginManagerTest.php
@@ -0,0 +1,374 @@
+<?php
+namespace Shaarli\Security;
+
+require_once 'tests/utils/FakeConfigManager.php';
+use \PHPUnit\Framework\TestCase;
+
+/**
+ * Test coverage for LoginManager
+ */
+class LoginManagerTest extends TestCase
+{
+    /** @var \FakeConfigManager Configuration Manager instance */
+    protected $configManager = null;
+
+    /** @var LoginManager Login Manager instance */
+    protected $loginManager = null;
+
+    /** @var SessionManager Session Manager instance */
+    protected $sessionManager = null;
+
+    /** @var string Banned IP filename */
+    protected $banFile = 'sandbox/ipbans.php';
+
+    /** @var string Log filename */
+    protected $logFile = 'sandbox/shaarli.log';
+
+    /** @var array Simulates the $_COOKIE array */
+    protected $cookie = [];
+
+    /** @var array Simulates the $GLOBALS array */
+    protected $globals = [];
+
+    /** @var array Simulates the $_SERVER array */
+    protected $server = [];
+
+    /** @var array Simulates the $_SESSION array */
+    protected $session = [];
+
+    /** @var string Advertised client IP address */
+    protected $clientIpAddress = '10.1.47.179';
+
+    /** @var string Local client IP address */
+    protected $ipAddr = '127.0.0.1';
+
+    /** @var string Trusted proxy IP address */
+    protected $trustedProxy = '10.1.1.100';
+
+    /** @var string User login */
+    protected $login = 'johndoe';
+
+    /** @var string User password */
+    protected $password = 'IC4nHazL0g1n?';
+
+    /** @var string Hash of the salted user password */
+    protected $passwordHash = '';
+
+    /** @var string Salt used by hash functions */
+    protected $salt = '669e24fa9c5a59a613f98e8e38327384504a4af2';
+
+    /**
+     * Prepare or reset test resources
+     */
+    public function setUp()
+    {
+        if (file_exists($this->banFile)) {
+            unlink($this->banFile);
+        }
+
+        $this->passwordHash = sha1($this->password . $this->login . $this->salt);
+
+        $this->configManager = new \FakeConfigManager([
+            'credentials.login' => $this->login,
+            'credentials.hash' => $this->passwordHash,
+            'credentials.salt' => $this->salt,
+            'resource.ban_file' => $this->banFile,
+            'resource.log' => $this->logFile,
+            'security.ban_after' => 4,
+            'security.ban_duration' => 3600,
+            'security.trusted_proxies' => [$this->trustedProxy],
+        ]);
+
+        $this->cookie = [];
+
+        $this->globals = &$GLOBALS;
+        unset($this->globals['IPBANS']);
+
+        $this->session = [];
+
+        $this->sessionManager = new SessionManager($this->session, $this->configManager);
+        $this->loginManager = new LoginManager($this->globals, $this->configManager, $this->sessionManager);
+        $this->server['REMOTE_ADDR'] = $this->ipAddr;
+    }
+
+    /**
+     * Wipe test resources
+     */
+    public function tearDown()
+    {
+        unset($this->globals['IPBANS']);
+    }
+
+    /**
+     * Instantiate a LoginManager and load ban records
+     */
+    public function testReadBanFile()
+    {
+        file_put_contents(
+            $this->banFile,
+            "<?php\n\$GLOBALS['IPBANS']=array('FAILURES' => array('127.0.0.1' => 99));\n?>"
+        );
+        new LoginManager($this->globals, $this->configManager, null);
+        $this->assertEquals(99, $this->globals['IPBANS']['FAILURES']['127.0.0.1']);
+    }
+
+    /**
+     * Record a failed login attempt
+     */
+    public function testHandleFailedLogin()
+    {
+        $this->loginManager->handleFailedLogin($this->server);
+        $this->assertEquals(1, $this->globals['IPBANS']['FAILURES'][$this->ipAddr]);
+
+        $this->loginManager->handleFailedLogin($this->server);
+        $this->assertEquals(2, $this->globals['IPBANS']['FAILURES'][$this->ipAddr]);
+    }
+
+    /**
+     * Record a failed login attempt - IP behind a trusted proxy
+     */
+    public function testHandleFailedLoginBehindTrustedProxy()
+    {
+        $server = [
+            'REMOTE_ADDR' => $this->trustedProxy,
+            'HTTP_X_FORWARDED_FOR' => $this->ipAddr,
+        ];
+        $this->loginManager->handleFailedLogin($server);
+        $this->assertEquals(1, $this->globals['IPBANS']['FAILURES'][$this->ipAddr]);
+
+        $this->loginManager->handleFailedLogin($server);
+        $this->assertEquals(2, $this->globals['IPBANS']['FAILURES'][$this->ipAddr]);
+    }
+
+    /**
+     * Record a failed login attempt - IP behind a trusted proxy but not forwarded
+     */
+    public function testHandleFailedLoginBehindTrustedProxyNoIp()
+    {
+        $server = [
+            'REMOTE_ADDR' => $this->trustedProxy,
+        ];
+        $this->loginManager->handleFailedLogin($server);
+        $this->assertFalse(isset($this->globals['IPBANS']['FAILURES'][$this->ipAddr]));
+
+        $this->loginManager->handleFailedLogin($server);
+        $this->assertFalse(isset($this->globals['IPBANS']['FAILURES'][$this->ipAddr]));
+    }
+
+    /**
+     * Record a failed login attempt and ban the IP after too many failures
+     */
+    public function testHandleFailedLoginBanIp()
+    {
+        $this->loginManager->handleFailedLogin($this->server);
+        $this->assertEquals(1, $this->globals['IPBANS']['FAILURES'][$this->ipAddr]);
+        $this->assertTrue($this->loginManager->canLogin($this->server));
+
+        $this->loginManager->handleFailedLogin($this->server);
+        $this->assertEquals(2, $this->globals['IPBANS']['FAILURES'][$this->ipAddr]);
+        $this->assertTrue($this->loginManager->canLogin($this->server));
+
+        $this->loginManager->handleFailedLogin($this->server);
+        $this->assertEquals(3, $this->globals['IPBANS']['FAILURES'][$this->ipAddr]);
+        $this->assertTrue($this->loginManager->canLogin($this->server));
+
+        $this->loginManager->handleFailedLogin($this->server);
+        $this->assertEquals(4, $this->globals['IPBANS']['FAILURES'][$this->ipAddr]);
+        $this->assertFalse($this->loginManager->canLogin($this->server));
+
+        // handleFailedLogin is not supposed to be called at this point:
+        // - no login form should be displayed once an IP has been banned
+        // - yet this could happen when using custom templates / scripts
+        $this->loginManager->handleFailedLogin($this->server);
+        $this->assertEquals(5, $this->globals['IPBANS']['FAILURES'][$this->ipAddr]);
+        $this->assertFalse($this->loginManager->canLogin($this->server));
+    }
+
+    /**
+     * Nothing to do
+     */
+    public function testHandleSuccessfulLogin()
+    {
+        $this->assertTrue($this->loginManager->canLogin($this->server));
+
+        $this->loginManager->handleSuccessfulLogin($this->server);
+        $this->assertTrue($this->loginManager->canLogin($this->server));
+    }
+
+    /**
+     * Erase failure records after successfully logging in from this IP
+     */
+    public function testHandleSuccessfulLoginAfterFailure()
+    {
+        $this->loginManager->handleFailedLogin($this->server);
+        $this->loginManager->handleFailedLogin($this->server);
+        $this->assertEquals(2, $this->globals['IPBANS']['FAILURES'][$this->ipAddr]);
+        $this->assertTrue($this->loginManager->canLogin($this->server));
+
+        $this->loginManager->handleSuccessfulLogin($this->server);
+        $this->assertTrue($this->loginManager->canLogin($this->server));
+        $this->assertFalse(isset($this->globals['IPBANS']['FAILURES'][$this->ipAddr]));
+        $this->assertFalse(isset($this->globals['IPBANS']['BANS'][$this->ipAddr]));
+    }
+
+    /**
+     * The IP is not banned
+     */
+    public function testCanLoginIpNotBanned()
+    {
+        $this->assertTrue($this->loginManager->canLogin($this->server));
+    }
+
+    /**
+     * The IP is banned
+     */
+    public function testCanLoginIpBanned()
+    {
+        // ban the IP for an hour
+        $this->globals['IPBANS']['FAILURES'][$this->ipAddr] = 10;
+        $this->globals['IPBANS']['BANS'][$this->ipAddr] = time() + 3600;
+
+        $this->assertFalse($this->loginManager->canLogin($this->server));
+    }
+
+    /**
+     * The IP is banned, and the ban duration is over
+     */
+    public function testCanLoginIpBanExpired()
+    {
+        // ban the IP for an hour
+        $this->globals['IPBANS']['FAILURES'][$this->ipAddr] = 10;
+        $this->globals['IPBANS']['BANS'][$this->ipAddr] = time() + 3600;
+        $this->assertFalse($this->loginManager->canLogin($this->server));
+
+        // lift the ban
+        $this->globals['IPBANS']['BANS'][$this->ipAddr] = time() - 3600;
+        $this->assertTrue($this->loginManager->canLogin($this->server));
+    }
+
+    /**
+     * Generate a token depending on the user credentials and client IP
+     */
+    public function testGenerateStaySignedInToken()
+    {
+        $this->loginManager->generateStaySignedInToken($this->clientIpAddress);
+
+        $this->assertEquals(
+            sha1($this->passwordHash . $this->clientIpAddress . $this->salt),
+            $this->loginManager->getStaySignedInToken()
+        );
+    }
+
+    /**
+     * Check user login - Shaarli has not yet been configured
+     */
+    public function testCheckLoginStateNotConfigured()
+    {
+        $configManager = new \FakeConfigManager([
+            'resource.ban_file' => $this->banFile,
+        ]);
+        $loginManager = new LoginManager($this->globals, $configManager, null);
+        $loginManager->checkLoginState([], '');
+
+        $this->assertFalse($loginManager->isLoggedIn());
+    }
+
+    /**
+     * Check user login - the client cookie does not match the server token
+     */
+    public function testCheckLoginStateStaySignedInWithInvalidToken()
+    {
+        // simulate a previous login
+        $this->session = [
+            'ip' => $this->clientIpAddress,
+            'expires_on' => time() + 100,
+        ];
+        $this->loginManager->generateStaySignedInToken($this->clientIpAddress);
+        $this->cookie[LoginManager::$STAY_SIGNED_IN_COOKIE] = 'nope';
+
+        $this->loginManager->checkLoginState($this->cookie, $this->clientIpAddress);
+
+        $this->assertTrue($this->loginManager->isLoggedIn());
+        $this->assertTrue(empty($this->session['username']));
+    }
+
+    /**
+     * Check user login - the client cookie matches the server token
+     */
+    public function testCheckLoginStateStaySignedInWithValidToken()
+    {
+        $this->loginManager->generateStaySignedInToken($this->clientIpAddress);
+        $this->cookie[LoginManager::$STAY_SIGNED_IN_COOKIE] = $this->loginManager->getStaySignedInToken();
+
+        $this->loginManager->checkLoginState($this->cookie, $this->clientIpAddress);
+
+        $this->assertTrue($this->loginManager->isLoggedIn());
+        $this->assertEquals($this->login, $this->session['username']);
+        $this->assertEquals($this->clientIpAddress, $this->session['ip']);
+    }
+
+    /**
+     * Check user login - the session has expired
+     */
+    public function testCheckLoginStateSessionExpired()
+    {
+        $this->loginManager->generateStaySignedInToken($this->clientIpAddress);
+        $this->session['expires_on'] = time() - 100;
+
+        $this->loginManager->checkLoginState($this->cookie, $this->clientIpAddress);
+
+        $this->assertFalse($this->loginManager->isLoggedIn());
+    }
+
+    /**
+     * Check user login - the remote client IP has changed
+     */
+    public function testCheckLoginStateClientIpChanged()
+    {
+        $this->loginManager->generateStaySignedInToken($this->clientIpAddress);
+
+        $this->loginManager->checkLoginState($this->cookie, '10.7.157.98');
+
+        $this->assertFalse($this->loginManager->isLoggedIn());
+    }
+
+    /**
+     * Check user credentials - wrong login supplied
+     */
+    public function testCheckCredentialsWrongLogin()
+    {
+        $this->assertFalse(
+            $this->loginManager->checkCredentials('', '', 'b4dl0g1n', $this->password)
+        );
+    }
+
+    /**
+     * Check user credentials - wrong password supplied
+     */
+    public function testCheckCredentialsWrongPassword()
+    {
+        $this->assertFalse(
+            $this->loginManager->checkCredentials('', '', $this->login, 'b4dp455wd')
+        );
+    }
+
+    /**
+     * Check user credentials - wrong login and password supplied
+     */
+    public function testCheckCredentialsWrongLoginAndPassword()
+    {
+        $this->assertFalse(
+            $this->loginManager->checkCredentials('', '', 'b4dl0g1n', 'b4dp455wd')
+        );
+    }
+
+    /**
+     * Check user credentials - correct login and password supplied
+     */
+    public function testCheckCredentialsGoodLoginAndPassword()
+    {
+        $this->assertTrue(
+            $this->loginManager->checkCredentials('', '', $this->login, $this->password)
+        );
+    }
+}
diff --git a/tests/security/SessionManagerTest.php b/tests/security/SessionManagerTest.php
new file mode 100644
index 00000000..9bd868f8
--- /dev/null
+++ b/tests/security/SessionManagerTest.php
@@ -0,0 +1,273 @@
+<?php
+require_once 'tests/utils/FakeConfigManager.php';
+
+// Initialize reference data _before_ PHPUnit starts a session
+require_once 'tests/utils/ReferenceSessionIdHashes.php';
+ReferenceSessionIdHashes::genAllHashes();
+
+use \Shaarli\Security\SessionManager;
+use \PHPUnit\Framework\TestCase;
+
+
+/**
+ * Test coverage for SessionManager
+ */
+class SessionManagerTest extends TestCase
+{
+    /** @var array Session ID hashes */
+    protected static $sidHashes = null;
+
+    /** @var \FakeConfigManager ConfigManager substitute for testing */
+    protected $conf = null;
+
+    /** @var array $_SESSION array for testing */
+    protected $session = [];
+
+    /** @var SessionManager Server-side session management abstraction */
+    protected $sessionManager = null;
+
+    /**
+     * Assign reference data
+     */
+    public static function setUpBeforeClass()
+    {
+        self::$sidHashes = ReferenceSessionIdHashes::getHashes();
+    }
+
+    /**
+     * Initialize or reset test resources
+     */
+    public function setUp()
+    {
+        $this->conf = new FakeConfigManager([
+            'credentials.login' => 'johndoe',
+            'credentials.salt' => 'salt',
+            'security.session_protection_disabled' => false,
+        ]);
+        $this->session = [];
+        $this->sessionManager = new SessionManager($this->session, $this->conf);
+    }
+
+    /**
+     * Generate a session token
+     */
+    public function testGenerateToken()
+    {
+        $token = $this->sessionManager->generateToken();
+
+        $this->assertEquals(1, $this->session['tokens'][$token]);
+        $this->assertEquals(40, strlen($token));
+    }
+
+    /**
+     * Check a session token
+     */
+    public function testCheckToken()
+    {
+        $token = '4dccc3a45ad9d03e5542b90c37d8db6d10f2b38b';
+        $session = [
+            'tokens' => [
+                $token => 1,
+            ],
+        ];
+        $sessionManager = new SessionManager($session, $this->conf);
+
+        // check and destroy the token
+        $this->assertTrue($sessionManager->checkToken($token));
+        $this->assertFalse(isset($session['tokens'][$token]));
+
+        // ensure the token has been destroyed
+        $this->assertFalse($sessionManager->checkToken($token));
+    }
+
+    /**
+     * Generate and check a session token
+     */
+    public function testGenerateAndCheckToken()
+    {
+        $token = $this->sessionManager->generateToken();
+
+        // ensure a token has been generated
+        $this->assertEquals(1, $this->session['tokens'][$token]);
+        $this->assertEquals(40, strlen($token));
+
+        // check and destroy the token
+        $this->assertTrue($this->sessionManager->checkToken($token));
+        $this->assertFalse(isset($this->session['tokens'][$token]));
+
+        // ensure the token has been destroyed
+        $this->assertFalse($this->sessionManager->checkToken($token));
+    }
+
+    /**
+     * Check an invalid session token
+     */
+    public function testCheckInvalidToken()
+    {
+        $this->assertFalse($this->sessionManager->checkToken('4dccc3a45ad9d03e5542b90c37d8db6d10f2b38b'));
+    }
+
+    /**
+     * Test SessionManager::checkId with a valid ID - TEST ALL THE HASHES!
+     *
+     * This tests extensively covers all hash algorithms / bit representations
+     */
+    public function testIsAnyHashSessionIdValid()
+    {
+        foreach (self::$sidHashes as $algo => $bpcs) {
+            foreach ($bpcs as $bpc => $hash) {
+                $this->assertTrue(SessionManager::checkId($hash));
+            }
+        }
+    }
+
+    /**
+     * Test checkId with a valid ID - SHA-1 hashes
+     */
+    public function testIsSha1SessionIdValid()
+    {
+        $this->assertTrue(SessionManager::checkId(sha1('shaarli')));
+    }
+
+    /**
+     * Test checkId with a valid ID - SHA-256 hashes
+     */
+    public function testIsSha256SessionIdValid()
+    {
+        $this->assertTrue(SessionManager::checkId(hash('sha256', 'shaarli')));
+    }
+
+    /**
+     * Test checkId with a valid ID - SHA-512 hashes
+     */
+    public function testIsSha512SessionIdValid()
+    {
+        $this->assertTrue(SessionManager::checkId(hash('sha512', 'shaarli')));
+    }
+
+    /**
+     * Test checkId with invalid IDs.
+     */
+    public function testIsSessionIdInvalid()
+    {
+        $this->assertFalse(SessionManager::checkId(''));
+        $this->assertFalse(SessionManager::checkId([]));
+        $this->assertFalse(
+            SessionManager::checkId('c0ZqcWF3VFE2NmJBdm1HMVQ0ZHJ3UmZPbTFsNGhkNHI=')
+        );
+    }
+
+    /**
+     * Store login information after a successful login
+     */
+    public function testStoreLoginInfo()
+    {
+        $this->sessionManager->storeLoginInfo('ip_id');
+
+        $this->assertGreaterThan(time(), $this->session['expires_on']);
+        $this->assertEquals('ip_id', $this->session['ip']);
+        $this->assertEquals('johndoe', $this->session['username']);
+    }
+
+    /**
+     * Extend a server-side session by SessionManager::$SHORT_TIMEOUT
+     */
+    public function testExtendSession()
+    {
+        $this->sessionManager->extendSession();
+
+        $this->assertGreaterThan(time(), $this->session['expires_on']);
+        $this->assertLessThanOrEqual(
+            time() + SessionManager::$SHORT_TIMEOUT,
+            $this->session['expires_on']
+        );
+    }
+
+    /**
+     * Extend a server-side session by SessionManager::$LONG_TIMEOUT
+     */
+    public function testExtendSessionStaySignedIn()
+    {
+        $this->sessionManager->setStaySignedIn(true);
+        $this->sessionManager->extendSession();
+
+        $this->assertGreaterThan(time(), $this->session['expires_on']);
+        $this->assertGreaterThan(
+            time() + SessionManager::$LONG_TIMEOUT - 10,
+            $this->session['expires_on']
+        );
+        $this->assertLessThanOrEqual(
+            time() + SessionManager::$LONG_TIMEOUT,
+            $this->session['expires_on']
+        );
+    }
+
+    /**
+     * Unset session variables after logging out
+     */
+    public function testLogout()
+    {
+        $this->session = [
+            'ip' => 'ip_id',
+            'expires_on' => time() + 1000,
+            'username' => 'johndoe',
+            'visibility' => 'public',
+            'untaggedonly' => false,
+        ];
+        $this->sessionManager->logout();
+
+        $this->assertFalse(isset($this->session['ip']));
+        $this->assertFalse(isset($this->session['expires_on']));
+        $this->assertFalse(isset($this->session['username']));
+        $this->assertFalse(isset($this->session['visibility']));
+        $this->assertFalse(isset($this->session['untaggedonly']));
+    }
+
+    /**
+     * The session is active and expiration time has been reached
+     */
+    public function testHasExpiredTimeElapsed()
+    {
+        $this->session['expires_on'] = time() - 10;
+
+        $this->assertTrue($this->sessionManager->hasSessionExpired());
+    }
+
+    /**
+     * The session is active and expiration time has not been reached
+     */
+    public function testHasNotExpired()
+    {
+        $this->session['expires_on'] = time() + 1000;
+
+        $this->assertFalse($this->sessionManager->hasSessionExpired());
+    }
+
+    /**
+     * Session hijacking protection is disabled, we assume the IP has not changed
+     */
+    public function testHasClientIpChangedNoSessionProtection()
+    {
+        $this->conf->set('security.session_protection_disabled', true);
+
+        $this->assertFalse($this->sessionManager->hasClientIpChanged(''));
+    }
+
+    /**
+     * The client IP identifier has not changed
+     */
+    public function testHasClientIpChangedNope()
+    {
+        $this->session['ip'] = 'ip_id';
+        $this->assertFalse($this->sessionManager->hasClientIpChanged('ip_id'));
+    }
+
+    /**
+     * The client IP identifier has changed
+     */
+    public function testHasClientIpChanged()
+    {
+        $this->session['ip'] = 'ip_id_one';
+        $this->assertTrue($this->sessionManager->hasClientIpChanged('ip_id_two'));
+    }
+}