implemented user+passwd in STDIN

lam/docs/README.lamdaemon.txt

@@ -58,7 +58,7 @@ things to get it to work:
    You have to run the command as the user your webserver is running, e.g.
 
    wwwrun@tilo:/srv/www/htdocs/lam/lib> /srv/www/htdocs/lam/lib/lamdaemon.pl \
-     127.0.0.1 /srv/www/htdocs/lam/lib/lamdaemon.pl root secret *test
+     127.0.0.1 /srv/www/htdocs/lam/lib/lamdaemon.pl adminuser secret *test
 
    You should get the following response:
 
@@ -74,4 +74,12 @@ things to get it to work:
 
 Now everything should work fine.
 
+
+Security warning:
+-----------------
+
+   If you use PHP < 4.3 your admin user and password are passed as commandline argument.
+   This can be a security risk. Upgrade your PHP version for productive use.
+
+
 Please send a mail to TiloLutz@gmx.de if you have any suggestions.

lam/lib/lamdaemon.inc

@@ -40,16 +40,12 @@ $Id$
 function lamdaemon($commands) {
 	// get username and password of the current lam-admin
 	$ldap_q = $_SESSION['ldap']->decrypt_login();
-	/* $towrite has the following syntax:
-	* admin-username, admin-password, owner of homedir, 'home', operation='add'
-	* use escapeshellarg to make exec() shell-safe
-	*/
-	$towrite = escapeshellarg($_SESSION['config']->scriptServer)." ".escapeshellarg($_SESSION['config']->scriptPath)." ".
-		escapeshellarg($ldap_q[0]).' '.escapeshellarg($ldap_q[1]);
 
 	$userstring = implode ("\n", $commands);
-	if (function_exists(proc_open)) {
+	$output_array = array();
+	if (function_exists('proc_open')) {
 		// New Code, requires PHP 4.3
+		$towrite = escapeshellarg($_SESSION['config']->scriptServer)." ".escapeshellarg($_SESSION['config']->scriptPath)." - -";
 		$descriptorspec = array(
 			0 => array("pipe", "r"), // stdin
 			1 => array("pipe", "w"), // stout
@@ -64,6 +60,9 @@ function lamdaemon($commands) {
 			* $pipes[1] is readable handle to child stdout
 			* any error is send to /dev/null
 			*/
+			// user+passwd
+			fwrite($pipes[0], $ldap_q[0] . "\n");
+			fwrite($pipes[0], $ldap_q[1] . "\n");
 			// Write to stdin
 			fwrite($pipes[0], $userstring);
 			}
@@ -76,6 +75,8 @@ function lamdaemon($commands) {
 		proc_close($process);
 		}
 	else { // PHP 4.3>
+		$towrite = escapeshellarg($_SESSION['config']->scriptServer)." ".escapeshellarg($_SESSION['config']->scriptPath)." ".
+			escapeshellarg($ldap_q[0]).' '.escapeshellarg($ldap_q[1]);
 		$command = escapeshellarg($_SESSION['lampath']."lib/lamdaemon.pl")." ".$towrite;
 		$pipe = popen("echo \"$userstring\"|$command" , 'r');
 		while(!feof($pipe)) {
@@ -85,7 +86,12 @@ function lamdaemon($commands) {
 			}
 		pclose($pipe);
 		}
+	if (sizeof($output_array) > 0) {
 		return $output_array;
+	}
+	else {
+		return false;
+	}
 }
 
 ?>

lam/lib/lamdaemon.pl

@@ -205,9 +205,23 @@ else {
 	$remotepath = shift @ARGV;
 	use Net::SSH::Perl;
 	if ($ARGV[2] eq "*test") { print "Net::SSH::Perl successfully installed.\n"; }
+	if (($ARGV[0] eq "-") and ($ARGV[1] eq "-")) {  # user+passwd are in STDIN
+		$username = <STDIN>;
+		chop($username);
+		@username = split (',', $username);
+		$username[0] =~ s/uid=//;
+		$username[0] =~ s/cn=//;
+		$username = $username[0];
+		$password = <STDIN>;
+		chop($password);
+	}
+	else {
 		@username = split (',', $ARGV[0]);
 		$username[0] =~ s/uid=//;
+		$username[0] =~ s/cn=//;
+		$username = $username[0];
 		$password = $ARGV[1];
+	}
 	# Put all transfered lines in one string
 	if ($ARGV[2] ne "*test") {
 		$string = do {local $/;<STDIN>};
@@ -216,7 +230,7 @@ else {
 	my $ssh = Net::SSH::Perl->new($hostname, options=>[
 		"UserKnownHostsFile /dev/null"],
 		protocol => "2,1" );
-	$ssh->login($username[0], $password);
+	$ssh->login($username, $password);
 	# Change needed to prevent buffer overrun
 	@string2 = split ("\n", $string);
 	for ($i=0; $i<=$#string2; $i++) {