added logging

lam/help/help.inc

@@ -130,6 +130,10 @@ $helpArray = array (
 					"Text" => _("Every account type needs exactly one base module. This module provides a structural object class.")),
 				"238" => array ("ext" => "FALSE", "Headline" => _("Session timeout"),
 					"Text" => _("This is the time (in minutes) of inactivity after which a user is automatically logged off.")),
+				"239" => array ("ext" => "FALSE", "Headline" => _("Log level"),
+					"Text" => _("Please select your prefered log level. Messages with a lower level will not be logged.")),
+				"240" => array ("ext" => "FALSE", "Headline" => _("Log destination"),
+					"Text" => _("Here you can select where LAM should save its log messages. System logging will go to Syslog on Unix systems and event log on Windows. You can also select an extra file.")),
 				"250" => array ("ext" => "FALSE", "Headline" => _("Account lists - Filters"),
 					"Text" => _("Here you can input small filter expressions (e.g. 'value' or 'v*'). LAM will filter case-insensitive.")),
 				// 300 - 399

lam/lib/config.inc

@@ -722,11 +722,23 @@ class CfgMain {
 	/** Time of inactivity before session times out (minutes) */
 	var $sessionTimeout;
 	
+	/** log level */
+	var $logLevel;
+	
+	/** log destination ("SYSLOG":syslog, "/...":file, "NONE":none) */
+	var $logDestination;
+	
+	/** list of data fields to save in config file */
+	var $settings = array("password", "default", "sessionTimeout", "logLevel", "logDestination");
+	
 	/**
 	* Loads preferences from config file
 	*/
 	function CfgMain() {
+		// set default values
 		$this->sessionTimeout = 30;
+		$this->logLevel = LOG_NOTICE;
+		$this->logDestination = "SYSLOG";
 		$this->reload();
 	}
 
@@ -745,17 +757,13 @@ class CfgMain {
 				$line = trim($line);  // remove spaces at the beginning and end
 				if (($line == "")||($line[0] == "#")) continue; // ignore comments
 				// search keywords
-				if (substr($line, 0, 10) == "password: ") {
+				for ($i = 0; $i < sizeof($this->settings); $i++) {
-					$this->password = substr($line, 10, strlen($line) - 10);
+					$keyword = $this->settings[$i];
-					continue;
+					$keylen = strlen($keyword);
+					if (strtolower(substr($line, 0, $keylen + 2)) == strtolower($keyword . ": ")) {
+						$this->$keyword = substr($line, $keylen + 2, strlen($line) - $keylen - 2);
+						break;
 					}
-				if (substr($line, 0, 9) == "default: ") {
-					$this->default = substr($line, 9, strlen($line) - 9);
-					continue;
-				}
-				if (substr($line, 0, 16) == "sessionTimeout: ") {
-					$this->sessionTimeout = intval(substr($line, 16, strlen($line) - 16));
-					continue;
 				}
 			}
 			fclose($file);
@@ -779,30 +787,28 @@ class CfgMain {
 			}
 			fclose($file);
 			// generate new configuration file
+			$saved = array();
 			for ($i = 0; $i < sizeof($file_array); $i++) {
-				if (($file_array[$i] == "\n")||($file_array[$i][0] == "#")) continue; // ignore comments
+				$line = trim($file_array[$i]);
-				// search for keywords
+				if (($line == "")||($line[0] == "#")) continue; // ignore comments and empty lines
-				if (substr($file_array[$i], 0, 10) == "password: ") {
+				// search keywords
-					$file_array[$i] = "password: " . $this->password . "\n";
+				for ($k = 0; $k < sizeof($this->settings); $k++) {
-					$save_password = True;
+					$keyword = $this->settings[$k];
-					continue;
+					$keylen = strlen($keyword);
+					if (strtolower(substr($line, 0, $keylen + 1)) == strtolower($keyword . ":")) {
+						$file_array[$i] = $keyword . ": " . $this->$keyword . "\n";
+						$saved[] = $keyword;	// mark keyword as saved
+						break;
 					}
-				if (substr($file_array[$i], 0, 9) == "default: ") {
-					$file_array[$i] = "default: " . $this->default . "\n";
-					$save_default = True;
-					continue;
-				}
-				if (substr($file_array[$i], 0, 16) == "sessionTimeout: ") {
-					$file_array[$i] = "sessionTimeout: " . $this->sessionTimeout . "\n";
-					$save_sessionTimeout = True;
-					continue;
 				}
 			}
 		}
 		// check if we have to add new entries (e.g. if user upgraded LAM and has an old config file)
-		if (!$save_password == True) array_push($file_array, "\n\n# password to add/delete/rename configuration profiles\n" . "password: " . $this->password);
+		if (!in_array("password", $saved)) array_push($file_array, "\n\n# password to add/delete/rename configuration profiles\n" . "password: " . $this->password);
-		if (!$save_default == True) array_push($file_array, "\n\n# default profile, without \".conf\"\n" . "default: " . $this->default);
+		if (!in_array("default", $saved)) array_push($file_array, "\n\n# default profile, without \".conf\"\n" . "default: " . $this->default);
-		if (!$save_sessionTimeout == True) array_push($file_array, "\n\n# session timeout in minutes\n" . "sessionTimeout: " . $this->sessionTimeout);
+		if (!in_array("sessionTimeout", $saved)) array_push($file_array, "\n\n# session timeout in minutes\n" . "sessionTimeout: " . $this->sessionTimeout);
+		if (!in_array("logLevel", $saved)) array_push($file_array, "\n\n# log level\n" . "logLevel: " . $this->logLevel);
+		if (!in_array("logDestination", $saved)) array_push($file_array, "\n\n# log destination\n" . "logDestination: " . $this->logDestination);
 		$file = @fopen($conffile, "w");
 		if ($file) {
 			for ($i = 0; $i < sizeof($file_array); $i++) fputs($file, $file_array[$i]);

lam/lib/modules.inc

@@ -41,6 +41,8 @@ include_once("baseModule.inc");
 include_once("ldap.inc");
 /** lamdaemon functions */
 include_once("lamdaemon.inc");
+/** security functions */
+include_once("security.inc");
  
 /**
 * This includes all module files.

lam/lib/security.inc

@@ -30,6 +30,8 @@ $Id$
 
 /** configuration options */
 include_once('config.inc');
+/** ldap connection */
+include_once('ldap.inc');
 
 /**
  * Starts a session and checks the environment.
@@ -98,6 +100,9 @@ function getValidUserDNs($dn) {
  *
  */
 function logoffAndBackToLoginPage() {
+	// log message
+	$ldapUser = $_SESSION['ldap']->decrypt_login();
+	logNewMessage(LOG_WARNING, 'Session of user ' . $ldapUser[0] . ' expired.');
 	// delete key and iv in cookie
 	if (function_exists('mcrypt_create_iv')) {
 		setcookie("Key", "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", 0, "/");
@@ -134,4 +139,42 @@ function logoffAndBackToLoginPage() {
 	die();
 }
 
+/**
+ * Puts a new message in the log file.
+ *
+ * @param string $level log level (LOG_NOTICE, LOG_WARNING, LOG_ERR)
+ * @param string $message log message
+ */
+function logNewMessage($level, $message) {
+	$possibleLevels = array(LOG_NOTICE => 'NOTICE', LOG_WARNING => 'WARNING', LOG_ERR => 'ERROR');
+	if (!in_array($level, array_keys($possibleLevels))) StatusMessage('ERROR', 'Invalid log level!', $level);
+	if (isset($_SESSION['cfgMain'])) $cfg = $_SESSION['cfgMain'];
+	else $cfg = new CfgMain();
+	// check if logging is disabled
+	if ($cfg->logDestination == 'NONE') return;
+	// check if log level is high enough
+	elseif ($cfg->logLevel < $level) return;
+	// ok to log, build log message
+	$prefix = "LDAP Account Manager - " . $possibleLevels[$level] . ": ";	
+	$message = $prefix . $message;
+	// Syslog logging
+	if ($cfg->logDestination == 'SYSLOG') {
+		syslog($level, $message);
+	}
+	// log to file
+	else {
+		touch($cfg->logDestination);
+		if (is_writable($cfg->logDestination)) {
+			$file = fopen($cfg->logDestination, 'a');
+			if ($file) {
+				fwrite($file, $message . "\n");
+				fclose($file);
+			}
+		}
+		else {
+			StatusMessage('ERROR', 'Unable to write to log file!', $cfg->logDestination);
+		}
+	}
+}
+
 ?>

lam/templates/config/mainmanage.php

@@ -70,6 +70,13 @@ echo $_SESSION['header'];
 
 // check if submit button was pressed
 if ($_POST['submit']) {
+	// remove double slashes if magic quotes are on
+	if (get_magic_quotes_gpc() == 1) {
+		$postKeys = array_keys($_POST);
+		for ($i = 0; $i < sizeof($postKeys); $i++) {
+			if (is_string($_POST[$postKeys[$i]])) $_POST[$postKeys[$i]] = stripslashes($_POST[$postKeys[$i]]);
+		}
+	}
 	$errors = array();
 	// set master password
 	if (isset($_POST['masterpassword']) && ($_POST['masterpassword'] != "")) {
@@ -82,6 +89,17 @@ if ($_POST['submit']) {
 	}
 	// set session timeout
 	$cfg->sessionTimeout = $_POST['sessionTimeout'];
+	// set log level
+	$cfg->logLevel = $_POST['logLevel'];
+	// set log destination
+	if ($_POST['logDestination'] == "none") $cfg->logDestination = "NONE";
+	elseif ($_POST['logDestination'] == "syslog") $cfg->logDestination = "SYSLOG";
+	else {
+		if (isset($_POST['logFile']) && ($_POST['logFile'] != "") && eregi("^[a-z0-9/\\\:\\._-]+$", $_POST['logFile'])) {
+			$cfg->logDestination = $_POST['logFile'];
+		}
+		else $errors[] = _("The log file is empty or contains invalid characters! Valid characters are: a-z, A-Z, 0-9, /, \\, ., :, _ and -.");
+	}
 	// save settings
 	$cfg->save();
 	// print messages
@@ -136,6 +154,97 @@ if ($_POST['submit']) {
 			</table>
 		</fieldset>
 		<BR>
+		<fieldset>
+			<legend><b> <?php echo _("Logging"); ?> </b></legend>
+			<p>
+			<table cellspacing="0" border="0">
+				<!-- log level -->
+				<tr>
+					<td>
+						<?php echo _("Log level"); ?>
+						<SELECT name="logLevel">
+						<?php
+						$options = array(_("Notice"), _("Warning"), _("Error"));
+						$levels = array(LOG_NOTICE, LOG_WARNING, LOG_ERR);
+						for ($i = 0; $i < sizeof($options); $i++) {
+							if ($cfg->logLevel == $levels[$i]) {
+								echo "<option selected value=\"" . $levels[$i] . "\">" . $options[$i] . "</option>";
+							}
+							else {
+								echo "<option value=\"" . $levels[$i] . "\">" . $options[$i] . "</option>";
+							}
+						}
+						?>
+						</SELECT>
+					</td>
+					<td>&nbsp;
+					<?PHP
+						// help link
+						echo "<a href=\"../help.php?HelpNumber=239\" target=\"lamhelp\">";
+						echo "<img src=\"../../graphics/help.png\" alt=\"" . _('Help') . "\" title=\"" . _('Help') . "\">";
+						echo "</a>\n";
+					?>
+					</td>
+				</tr>
+				<TR><TD colspan="2">&nbsp;</TD></TR>
+				<TR>
+					<TD>
+						<?PHP
+							echo _("Log destination") . ":";
+						?>
+					</TD>
+					<TD>&nbsp;
+					<?PHP
+						// help link
+						echo "<a href=\"../help.php?HelpNumber=240\" target=\"lamhelp\">";
+						echo "<img src=\"../../graphics/help.png\" alt=\"" . _('Help') . "\" title=\"" . _('Help') . "\">";
+						echo "</a>\n";
+					?>					
+					</TD>
+				</TR>
+				<TR>
+					<TD colspan="2">
+					<?PHP
+						$noLogChecked = false;
+						if ($cfg->logDestination == "NONE") $noLogChecked = true;
+						echo "<input type=\"radio\" name=\"logDestination\" value=\"none\"";
+						if ($noLogChecked) echo " checked";
+						echo ">" . _("No logging") . "\n";
+					?>
+					</TD>
+				</TR>
+				<TR>
+					<TD colspan="2">
+					<?PHP
+						$syslogChecked = false;
+						if ($cfg->logDestination == "SYSLOG") {
+							$syslogChecked = true;
+						}
+						echo "<input type=\"radio\" name=\"logDestination\" value=\"syslog\"";
+						if ($syslogChecked) echo " checked";
+						echo ">" . _("System logging") . "\n";
+					?>
+					</TD>
+				</TR>
+				<TR>
+					<TD colspan="2">
+					<?PHP
+						$logFile = "";
+						$logFileChecked = false;
+						if (($cfg->logDestination != "NONE") && ($cfg->logDestination != "SYSLOG")) {
+							$logFile = $cfg->logDestination;
+							$logFileChecked = true;
+						}
+						echo "<input type=\"radio\" name=\"logDestination\" value=\"file\"";
+						if ($logFileChecked) echo " checked";
+						echo ">" . _("File") . "\n";
+						echo "<input type=\"text\" name=\"logFile\" value=\"" . $logFile . "\">\n";
+					?>
+					</TD>
+				</TR>
+			</table>
+		</fieldset>
+		<BR>
 		<fieldset>
 			<legend><b> <?php echo _("Change master password"); ?> </b></legend>
 			<p>

lam/templates/login.php

@@ -30,6 +30,8 @@ $Id$
 
 /** status messages */
 include_once("../lib/status.inc");
+/** security functions */
+include_once("../lib/security.inc");
 
 // check environment
 $criticalErrors = array();
@@ -193,7 +195,7 @@ function display_LoginPage($config_object) {
 						<table width="580">
 							<tr>
 								<td style="border-style:none" height="70" colspan="2" align="center">
-									<font color="darkblue"><b><big><?php echo _("Please select your user name and enter your password to log in"); ?></big></b></font>
+									<font color="darkblue"><b><big><?php echo _("Please select your user name and enter your password to log in."); ?></big></b></font>
 								</td>
 							</tr>
 							<tr>
@@ -289,7 +291,7 @@ function display_LoginPage($config_object) {
 							<tr>
 							<td style="border-style:none" height="30"><b>
 								<?php
-								echo _("Configuration profile") . ": ";
+								echo _("Server profile") . ": ";
 								if(empty($_POST['profileChange'])) {
 									$_POST['profile'] = $_SESSION['config']->file;
 								}
@@ -368,29 +370,31 @@ if(!empty($_POST['checklogin']))
 			$_SESSION['sec_session_id'] = session_id();
 			$_SESSION['sec_client_ip'] = $_SERVER['REMOTE_ADDR'];
 			$_SESSION['sec_sessionTime'] = time();
+			// logging
+			logNewMessage(LOG_NOTICE, 'User ' . $_POST['username'] . ' successfully logged in.');
 			// Load main frame
 			include("./main.php");
 		}
 		else
 		{
-			if ($result === False)
+			if ($result === False) {
-			{
 				$error_message = _("Cannot connect to specified LDAP server. Please try again.");
+				logNewMessage(LOG_ERR, 'User ' . $_POST['username'] . ' failed to log in (LDAP error: ' . ldap_err2str($result) . ').');
 				display_LoginPage($_SESSION['config']); // connection failed
 			}
-			elseif ($result == 81)
+			elseif ($result == 81) {
-			{
 				$error_message = _("Cannot connect to specified LDAP server. Please try again.");
+				logNewMessage(LOG_ERR, 'User ' . $_POST['username'] . ' failed to log in (LDAP error: ' . ldap_err2str($result) . ').');
 				display_LoginPage($_SESSION['config']); // connection failed
 			}
-			elseif ($result == 49)
+			elseif ($result == 49) {
-			{
 				$error_message = _("Wrong password/user name combination. Please try again.");
+				logNewMessage(LOG_ERR, 'User ' . $_POST['username'] . ' failed to log in (wrong password).');
 				display_LoginPage($_SESSION['config']); // Username/password invalid. Return to login page.
 			}
-			else
+			else {
-			{
 				$error_message = _("LDAP error, server says:") .  "\n<br>($result) " . ldap_err2str($result);
+				logNewMessage(LOG_ERR, 'User ' . $_POST['username'] . ' failed to log in (LDAP error: ' . ldap_err2str($result) . ').');
 				display_LoginPage($_SESSION['config']); // other errors
 			}
 		}

lam/templates/logout.php

@@ -45,6 +45,10 @@ include_once("../lib/ldap.inc");
 // start session
 startSecureSession();
 
+// log message
+$ldapUser = $_SESSION['ldap']->decrypt_login();
+logNewMessage(LOG_NOTICE, 'User ' . $ldapUser[0] . ' logged off.');
+
 // close LDAP connection
 @$_SESSION["ldap"]->destroy();