From b31bb1f27f066a2d49f5ab9ee0ca15e985efc788 Mon Sep 17 00:00:00 2001
From: tbrehm <t.brehm@ispconfig.org>
Date: Mon, 26 Sep 2011 06:50:23 -0400
Subject: [PATCH] Fixed: FS#1619 - Add apache SNI / SAN support for SSL.

---
 server/plugins-available/shelluser_base_plugin.inc.php |  119 +++++++++++++++++++++++++++++++++++++++++++++++++++--------
 1 files changed, 102 insertions(+), 17 deletions(-)

diff --git a/server/plugins-available/shelluser_base_plugin.inc.php b/server/plugins-available/shelluser_base_plugin.inc.php
index 76fdf0e..58858a3 100755
--- a/server/plugins-available/shelluser_base_plugin.inc.php
+++ b/server/plugins-available/shelluser_base_plugin.inc.php
@@ -77,29 +77,42 @@
 			$uid = intval($app->system->getuid($data['new']['puser']));
 			if($uid > $this->min_uid) {
 				$command = 'useradd';
-				$command .= ' --home '.escapeshellcmd($data['new']['dir']);
-				$command .= ' --gid '.escapeshellcmd($data['new']['pgroup']);
-				$command .= ' --non-unique ';
-				$command .= ' --password '.escapeshellcmd($data['new']['password']);
-				$command .= ' --shell '.escapeshellcmd($data['new']['shell']);
-				$command .= ' --uid '.escapeshellcmd($uid);
+				$command .= ' -d '.escapeshellcmd($data['new']['dir']);
+				$command .= ' -g '.escapeshellcmd($data['new']['pgroup']);
+				$command .= ' -o '; // non unique
+				if($data['new']['password'] != '') $command .= ' -p '.escapeshellcmd($data['new']['password']);
+				$command .= ' -s '.escapeshellcmd($data['new']['shell']);
+				$command .= ' -u '.escapeshellcmd($uid);
 				$command .= ' '.escapeshellcmd($data['new']['username']);
 			
 				exec($command);
+				$app->log("Executed command: ".$command,LOGLEVEL_DEBUG);
 				$app->log("Added shelluser: ".$data['new']['username'],LOGLEVEL_DEBUG);
+								
+				// call the ssh-rsa update function
+				$app->uses("getconf");
+				$this->data = $data;
+				$this->app = $app;
+				$this->_setup_ssh_rsa();
+				
+				//* Create .bash_history file
+				touch(escapeshellcmd($data['new']['dir']).'/.bash_history');
+				chmod(escapeshellcmd($data['new']['dir']).'/.bash_history', 0755);
+				chown(escapeshellcmd($data['new']['dir']).'/.bash_history', escapeshellcmd($data['new']['username']));
+				chgrp(escapeshellcmd($data['new']['dir']).'/.bash_history', escapeshellcmd($data['new']['pgroup']));
 				
 				//* Disable shell user temporarily if we use jailkit
 				if($data['new']['chroot'] == 'jailkit') {
-					$command = 'usermod --lock '.escapeshellcmd($data['new']['username']);
+					$command = 'usermod -s /bin/false -L '.escapeshellcmd($data['new']['username']);
 					exec($command);
-					$app->log("Disabling shelluser temporarily: ".$data['new']['username'],LOGLEVEL_DEBUG);
+					$app->log("Disabling shelluser temporarily: ".$command,LOGLEVEL_DEBUG);
 				}
 			
 			} else {
 				$app->log("UID = $uid for shelluser:".$data['new']['username']." not allowed.",LOGLEVEL_ERROR);
 			}
 		} else {
-			$app->log("Skippung insert of user:".$data['new']['username'].", parent user ".$data['new']['puser']." does not exist.",LOGLEVEL_WARN);
+			$app->log("Skipping insertion of user:".$data['new']['username'].", parent user ".$data['new']['puser']." does not exist.",LOGLEVEL_WARN);
 		}
 	}
 	
@@ -125,8 +138,23 @@
 					$command .= ' '.escapeshellcmd($data['old']['username']);
 			
 					exec($command);
-					// $app->log("Updated shelluser: $command ",LOGLEVEL_DEBUG);
+					$app->log("Executed command: $command ",LOGLEVEL_DEBUG);
 					$app->log("Updated shelluser: ".$data['old']['username'],LOGLEVEL_DEBUG);
+									
+					// call the ssh-rsa update function
+					$app->uses("getconf");
+					$this->data = $data;
+					$this->app = $app;
+					$this->_setup_ssh_rsa();
+					
+					//* Create .bash_history file
+					if(!is_file($data['new']['dir']).'/.bash_history') {
+						touch(escapeshellcmd($data['new']['dir']).'/.bash_history');
+						chmod(escapeshellcmd($data['new']['dir']).'/.bash_history', 0755);
+						chown(escapeshellcmd($data['new']['dir']).'/.bash_history',escapeshellcmd($data['new']['username']));
+						chgrp(escapeshellcmd($data['new']['dir']).'/.bash_history',escapeshellcmd($data['new']['pgroup']));
+					}
+					
 				} else {
 					// The user does not exist, so we insert it now
 					$this->insert($event_name,$data);
@@ -135,7 +163,7 @@
 				$app->log("UID = $uid for shelluser:".$data['new']['username']." not allowed.",LOGLEVEL_ERROR);
 			}
 		} else {
-			$app->log("Skippung update for user:".$data['new']['username'].", parent user ".$data['new']['puser']." does not exist.",LOGLEVEL_WARN);
+			$app->log("Skipping update for user:".$data['new']['username'].", parent user ".$data['new']['puser']." does not exist.",LOGLEVEL_WARN);
 		}
 	}
 	
@@ -148,11 +176,14 @@
 			// Get the UID of the user
 			$userid = intval($app->system->getuid($data['old']['username']));
 			if($userid > $this->min_uid) {
-				$command = 'userdel -f -r';
-				$command .= ' '.escapeshellcmd($data['old']['username']);
+				// We delete only non jailkit users, jailkit users will be deleted by the jailkit plugin.
+				if ($data['old']['chroot'] != "jailkit") {
+					$command = 'userdel -f';
+					$command .= ' '.escapeshellcmd($data['old']['username']);
 			
-				exec($command);
-				$app->log("Deleted shelluser: ".$data['old']['username'],LOGLEVEL_DEBUG);
+					exec($command);
+					$app->log("Deleted shelluser: ".$data['old']['username'],LOGLEVEL_DEBUG);
+				}
 			
 			} else {
 				$app->log("UID = $userid for shelluser:".$data['old']['username']." not allowed.",LOGLEVEL_ERROR);
@@ -163,9 +194,63 @@
 		
 	}
 	
-	
+	private function _setup_ssh_rsa() {
+		$this->app->log("ssh-rsa setup shelluser_base",LOGLEVEL_DEBUG);
+		// Get the client ID, username, and the key
+		$domain_data = $this->app->db->queryOneRecord('SELECT sys_groupid FROM web_domain WHERE web_domain.domain_id = '.intval($this->data['new']['parent_domain_id']));
+		$sys_group_data = $this->app->db->queryOneRecord('SELECT * FROM sys_group WHERE sys_group.groupid = '.intval($domain_data['sys_groupid']));
+		$id = intval($sys_group_data['client_id']);
+		$username= $sys_group_data['name'];
+		$client_data = $this->app->db->queryOneRecord('SELECT * FROM client WHERE client.client_id = '.$id);
+		$userkey = $client_data['ssh_rsa'];
+		unset($domain_data);
+		unset($client_data);
+		
+		// ssh-rsa authentication variables
+		$sshrsa = escapeshellcmd($this->data['new']['ssh_rsa']);
+		$usrdir = escapeshellcmd($this->data['new']['dir']);
+		$sshdir = $usrdir.'/.ssh';
+		$sshkeys= $usrdir.'/.ssh/authorized_keys';
+		
+		// If this user has no key yet, generate a pair
+		if ($userkey == '' && $id>0) 
+		{
+			//Generate ssh-rsa-keys
+			exec('ssh-keygen -t rsa -C '.$username.'-rsa-key-'.time().' -f /tmp/id_rsa -N ""');
+			// save keypair in client table
+			$this->app->db->query("UPDATE client SET created_at = ".time().", id_rsa = '".file_get_contents('/tmp/id_rsa')."', ssh_rsa = '".file_get_contents('/tmp/id_rsa.pub')."' WHERE client_id = ".$id);
+			// and use the public key that has been generated
+			$userkey = file_get_contents('/tmp/id_rsa.pub')
+			;
+			exec('rm -f /tmp/id_rsa /tmp/id_rsa.pub');
+			$this->app->log("ssh-rsa keypair generated for ".$username,LOGLEVEL_DEBUG);
+		};
+		
+		if (!file_exists($sshkeys))
+		{
+			// add root's key
+			exec("mkdir '$sshdir'");
+			exec("cat /root/.ssh/authorized_keys > '$sshkeys'");
+			exec("echo '' >> '$sshkeys'");
+		
+			// add the user's key
+			exec("echo '$userkey' >> '$sshkeys'");
+			exec("echo '' >> '$sshkeys'");
+			$this->app->log("ssh-rsa authorisation keyfile created in ".$sshkeys,LOGLEVEL_DEBUG);
+		}
+		if ($sshrsa!=''){
+			// add the custom key 
+			exec("echo '$sshrsa' >> '$sshkeys'");
+			exec("echo '' >> '$sshkeys'");
+			$this->app->log("ssh-rsa key updated in ".$sshkeys,LOGLEVEL_DEBUG);
+		}
+		// set proper file permissions
+		exec("chown -R ".escapeshellcmd($this->data['new']['puser']).":".escapeshellcmd($this->data['new']['pgroup'])." ".$usrdir);
+		exec("chmod 600 '$sshkeys'");
+		
+	}
 	
 
 } // end class
 
-?>
\ No newline at end of file
+?>

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