X-Git-Url: https://git.immae.eu/?a=blobdiff_plain;f=application%2Fsecurity%2FLoginManager.php;h=426e785e1a5431328d0818d49ec6d00d037eb0cd;hb=1e49a65a2a930390cf00114cc30d8516626331c2;hp=d6784d6da6424e266a21702b7f0686746e91fe20;hpb=d9cd27322a97e6ed3a8b11a380ef0080e3baf79c;p=github%2Fshaarli%2FShaarli.git

diff --git a/application/security/LoginManager.php b/application/security/LoginManager.php
index d6784d6d..426e785e 100644
--- a/application/security/LoginManager.php
+++ b/application/security/LoginManager.php
@@ -1,6 +1,8 @@
 <?php
 namespace Shaarli\Security;
 
+use Exception;
+use Psr\Log\LoggerInterface;
 use Shaarli\Config\ConfigManager;
 
 /**
@@ -8,9 +10,6 @@ use Shaarli\Config\ConfigManager;
  */
 class LoginManager
 {
-    /** @var string Name of the cookie set after logging in **/
-    public static $STAY_SIGNED_IN_COOKIE = 'shaarli_staySignedIn';
-
     /** @var array A reference to the $_GLOBALS array */
     protected $globals = [];
 
@@ -20,8 +19,8 @@ class LoginManager
     /** @var SessionManager Session Manager instance **/
     protected $sessionManager = null;
 
-    /** @var string Path to the file containing IP bans */
-    protected $banFile = '';
+    /** @var BanManager Ban Manager instance **/
+    protected $banManager;
 
     /** @var bool Whether the user is logged in **/
     protected $isLoggedIn = false;
@@ -31,21 +30,33 @@ class LoginManager
 
     /** @var string User sign-in token depending on remote IP and credentials */
     protected $staySignedInToken = '';
+    /** @var CookieManager */
+    protected $cookieManager;
+    /** @var LoggerInterface */
+    protected $logger;
 
     /**
      * Constructor
      *
-     * @param array          $globals        The $GLOBALS array (reference)
-     * @param ConfigManager  $configManager  Configuration Manager instance
+     * @param ConfigManager $configManager Configuration Manager instance
      * @param SessionManager $sessionManager SessionManager instance
+     * @param CookieManager $cookieManager CookieManager instance
+     * @param BanManager $banManager
+     * @param LoggerInterface $logger Used to log login attempts
      */
-    public function __construct(& $globals, $configManager, $sessionManager)
-    {
-        $this->globals = &$globals;
+    public function __construct(
+        ConfigManager $configManager,
+        SessionManager $sessionManager,
+        CookieManager $cookieManager,
+        BanManager $banManager,
+        LoggerInterface $logger
+    ) {
         $this->configManager = $configManager;
         $this->sessionManager = $sessionManager;
-        $this->banFile = $this->configManager->get('resource.ban_file', 'data/ipbans.php');
-        $this->readBanFile();
+        $this->cookieManager = $cookieManager;
+        $this->banManager = $banManager;
+        $this->logger = $logger;
+
         if ($this->configManager->get('security.open_shaarli') === true) {
             $this->openShaarli = true;
         }
@@ -58,6 +69,9 @@ class LoginManager
      */
     public function generateStaySignedInToken($clientIpAddress)
     {
+        if ($this->configManager->get('security.session_protection_disabled') === true) {
+            $clientIpAddress = '';
+        }
         $this->staySignedInToken = sha1(
             $this->configManager->get('credentials.hash')
             . $clientIpAddress
@@ -78,10 +92,9 @@ class LoginManager
     /**
      * Check user session state and validity (expiration)
      *
-     * @param array  $cookie     The $_COOKIE array
      * @param string $clientIpId Client IP address identifier
      */
-    public function checkLoginState($cookie, $clientIpId)
+    public function checkLoginState($clientIpId)
     {
         if (! $this->configManager->exists('credentials.login')) {
             // Shaarli is not configured yet
@@ -89,13 +102,10 @@ class LoginManager
             return;
         }
 
-        if (isset($cookie[self::$STAY_SIGNED_IN_COOKIE])
-            && $cookie[self::$STAY_SIGNED_IN_COOKIE] === $this->staySignedInToken
-        ) {
+        if ($this->staySignedInToken === $this->cookieManager->getCookieParameter(CookieManager::STAY_SIGNED_IN)) {
             // The user client has a valid stay-signed-in cookie
             // Session information is updated with the current client information
             $this->sessionManager->storeLoginInfo($clientIpId);
-
         } elseif ($this->sessionManager->hasSessionExpired()
             || $this->sessionManager->hasClientIpChanged($clientIpId)
         ) {
@@ -113,7 +123,7 @@ class LoginManager
      *
      * @return true when the user is logged in, false otherwise
      */
-    public function isLoggedIn()
+    public function isLoggedIn(): bool
     {
         if ($this->openShaarli) {
             return true;
@@ -124,59 +134,80 @@ class LoginManager
     /**
      * Check user credentials are valid
      *
-     * @param string $remoteIp   Remote client IP address
      * @param string $clientIpId Client IP address identifier
      * @param string $login      Username
      * @param string $password   Password
      *
      * @return bool true if the provided credentials are valid, false otherwise
      */
-    public function checkCredentials($remoteIp, $clientIpId, $login, $password)
+    public function checkCredentials($clientIpId, $login, $password)
     {
-        $hash = sha1($password . $login . $this->configManager->get('credentials.salt'));
-
-        if ($login != $this->configManager->get('credentials.login')
-            || $hash != $this->configManager->get('credentials.hash')
-        ) {
-            logm(
-                $this->configManager->get('resource.log'),
-                $remoteIp,
-                'Login failed for user ' . $login
-            );
-            return false;
+        // Check credentials
+        try {
+            $useLdapLogin = !empty($this->configManager->get('ldap.host'));
+            if ($login === $this->configManager->get('credentials.login')
+                && (
+                    (false === $useLdapLogin && $this->checkCredentialsFromLocalConfig($login, $password))
+                    || (true === $useLdapLogin && $this->checkCredentialsFromLdap($login, $password))
+                )
+            ) {
+                $this->sessionManager->storeLoginInfo($clientIpId);
+                $this->logger->info(format_log('Login successful', $clientIpId));
+
+                return true;
+            }
+        } catch(Exception $exception) {
+            $this->logger->info(format_log('Exception while checking credentials: ' . $exception, $clientIpId));
         }
 
-        $this->sessionManager->storeLoginInfo($clientIpId);
-        logm(
-            $this->configManager->get('resource.log'),
-            $remoteIp,
-            'Login successful'
-        );
-        return true;
+        $this->logger->info(format_log('Login failed for user ' . $login, $clientIpId));
+
+        return false;
     }
 
+
     /**
-     * Read a file containing banned IPs
+     * Check user credentials from local config
+     *
+     * @param string $login      Username
+     * @param string $password   Password
+     *
+     * @return bool true if the provided credentials are valid, false otherwise
      */
-    protected function readBanFile()
-    {
-        if (! file_exists($this->banFile)) {
-            return;
-        }
-        include $this->banFile;
+    public function checkCredentialsFromLocalConfig($login, $password) {
+        $hash = sha1($password . $login . $this->configManager->get('credentials.salt'));
+
+        return $login == $this->configManager->get('credentials.login')
+             && $hash == $this->configManager->get('credentials.hash');
     }
 
     /**
-     * Write the banned IPs to a file
+     * Check user credentials are valid through LDAP bind
+     *
+     * @param string $remoteIp   Remote client IP address
+     * @param string $clientIpId Client IP address identifier
+     * @param string $login      Username
+     * @param string $password   Password
+     *
+     * @return bool true if the provided credentials are valid, false otherwise
      */
-    protected function writeBanFile()
+    public function checkCredentialsFromLdap($login, $password, $connect = null, $bind = null)
     {
-        if (! array_key_exists('IPBANS', $this->globals)) {
-            return;
-        }
-        file_put_contents(
-            $this->banFile,
-            "<?php\n\$GLOBALS['IPBANS']=" . var_export($this->globals['IPBANS'], true) . ";\n?>"
+        $connect = $connect ?? function($host) {
+            $resource = ldap_connect($host);
+
+            ldap_set_option($resource, LDAP_OPT_PROTOCOL_VERSION, 3);
+
+            return $resource;
+        };
+        $bind = $bind ?? function($handle, $dn, $password) {
+            return ldap_bind($handle, $dn, $password);
+        };
+
+        return $bind(
+            $connect($this->configManager->get('ldap.host')),
+            sprintf($this->configManager->get('ldap.dn'), $login),
+            $password
         );
     }
 
@@ -187,34 +218,7 @@ class LoginManager
      */
     public function handleFailedLogin($server)
     {
-        $ip = $server['REMOTE_ADDR'];
-        $trusted = $this->configManager->get('security.trusted_proxies', []);
-
-        if (in_array($ip, $trusted)) {
-            $ip = getIpAddressFromProxy($server, $trusted);
-            if (! $ip) {
-                // the IP is behind a trusted forward proxy, but is not forwarded
-                // in the HTTP headers, so we do nothing
-                return;
-            }
-        }
-
-        // increment the fail count for this IP
-        if (isset($this->globals['IPBANS']['FAILURES'][$ip])) {
-            $this->globals['IPBANS']['FAILURES'][$ip]++;
-        } else {
-            $this->globals['IPBANS']['FAILURES'][$ip] = 1;
-        }
-
-        if ($this->globals['IPBANS']['FAILURES'][$ip] >= $this->configManager->get('security.ban_after')) {
-            $this->globals['IPBANS']['BANS'][$ip] = time() + $this->configManager->get('security.ban_duration', 1800);
-            logm(
-                $this->configManager->get('resource.log'),
-                $server['REMOTE_ADDR'],
-                'IP address banned from login'
-            );
-        }
-        $this->writeBanFile();
+        $this->banManager->handleFailedAttempt($server);
     }
 
     /**
@@ -224,13 +228,7 @@ class LoginManager
      */
     public function handleSuccessfulLogin($server)
     {
-        $ip = $server['REMOTE_ADDR'];
-        // FIXME unban when behind a trusted proxy?
-
-        unset($this->globals['IPBANS']['FAILURES'][$ip]);
-        unset($this->globals['IPBANS']['BANS'][$ip]);
-
-        $this->writeBanFile();
+        $this->banManager->clearFailures($server);
     }
 
     /**
@@ -242,24 +240,6 @@ class LoginManager
      */
     public function canLogin($server)
     {
-        $ip = $server['REMOTE_ADDR'];
-
-        if (! isset($this->globals['IPBANS']['BANS'][$ip])) {
-            // the user is not banned
-            return true;
-        }
-
-        if ($this->globals['IPBANS']['BANS'][$ip] > time()) {
-            // the user is still banned
-            return false;
-        }
-
-        // the ban has expired, the user can attempt to log in again
-        logm($this->configManager->get('resource.log'), $server['REMOTE_ADDR'], 'Ban lifted.');
-        unset($this->globals['IPBANS']['FAILURES'][$ip]);
-        unset($this->globals['IPBANS']['BANS'][$ip]);
-
-        $this->writeBanFile();
-        return true;
+        return ! $this->banManager->isBanned($server);
     }
 }