Merged revisions 3557-3594 from 3.0.5 stable branch.

tbrehm

2012-10-24 4bd960b10d9f32cb8a82a0718caaa005768c107c

 server/plugins-available/shelluser_base_plugin.inc.php

@@ -72,7 +72,18 @@
      
      $app->uses('system');
      
      //* Check if the resulting path is inside the docroot
      $web = $app->db->queryOneRecord("SELECT * FROM web_domain WHERE domain_id = ".intval($data['new']['parent_domain_id']));
      if(substr(realpath($data['new']['dir']),0,strlen($web['document_root'])) != $web['document_root']) {
         $app->log('Directory of the shell user is outside of website docroot.',LOGLEVEL_WARN);
         return false;
      }
		
      if($app->system->is_user($data['new']['puser'])) {
			
         //* Remove webfolder protection
         $app->system->web_folder_protection($web['document_root'],false);
			
         // Get the UID of the parent user
         $uid = intval($app->system->getuid($data['new']['puser']));
         if($uid > $this->min_uid) {
@@ -96,10 +107,10 @@
            $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']));
            $app->system->touch(escapeshellcmd($data['new']['dir']).'/.bash_history');
            $app->system->chmod(escapeshellcmd($data['new']['dir']).'/.bash_history', 0755);
            $app->system->chown(escapeshellcmd($data['new']['dir']).'/.bash_history', $data['new']['username']);
            $app->system->chgrp(escapeshellcmd($data['new']['dir']).'/.bash_history', $data['new']['pgroup']);
            
            //* Disable shell user temporarily if we use jailkit
            if($data['new']['chroot'] == 'jailkit') {
@@ -107,6 +118,9 @@
               exec($command);
               $app->log("Disabling shelluser temporarily: ".$command,LOGLEVEL_DEBUG);
            }
				
            //* Add webfolder protection again
            $app->system->web_folder_protection($web['document_root'],true);
         
         } else {
            $app->log("UID = $uid for shelluser:".$data['new']['username']." not allowed.",LOGLEVEL_ERROR);
@@ -121,12 +135,20 @@
      
      $app->uses('system');
      
      //* Check if the resulting path is inside the docroot
      $web = $app->db->queryOneRecord("SELECT * FROM web_domain WHERE domain_id = ".intval($data['new']['parent_domain_id']));
      if(substr(realpath($data['new']['dir']),0,strlen($web['document_root'])) != $web['document_root']) {
         $app->log('Directory of the shell user is outside of website docroot.',LOGLEVEL_WARN);
         return false;
      }
		
      if($app->system->is_user($data['new']['puser'])) {
         // Get the UID of the parent user
         $uid = intval($app->system->getuid($data['new']['puser']));
         if($uid > $this->min_uid) {
            // Check if the user that we want to update exists, if not, we insert it
            if($app->system->is_user($data['old']['username'])) {
               /*
               $command = 'usermod';
               $command .= ' --home '.escapeshellcmd($data['new']['dir']);
               $command .= ' --gid '.escapeshellcmd($data['new']['pgroup']);
@@ -139,6 +161,9 @@
         
               exec($command);
               $app->log("Executed command: $command ",LOGLEVEL_DEBUG);
               */
               $groupinfo = posix_getgrnam($data['new']['pgroup']);
               $app->system->usermod($data['old']['username'],0, $groupinfo[gid], $data['new']['dir'], $data['new']['shell'], $data['new']['password'], $data['new']['username']);
               $app->log("Updated shelluser: ".$data['old']['username'],LOGLEVEL_DEBUG);
                           
               // call the ssh-rsa update function
@@ -149,10 +174,10 @@
               
               //* 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']));
                  $app->system->touch(escapeshellcmd($data['new']['dir']).'/.bash_history');
                  $app->system->chmod(escapeshellcmd($data['new']['dir']).'/.bash_history', 0755);
                  $app->system->chown(escapeshellcmd($data['new']['dir']).'/.bash_history',escapeshellcmd($data['new']['username']));
                  $app->system->chgrp(escapeshellcmd($data['new']['dir']).'/.bash_history',escapeshellcmd($data['new']['pgroup']));
               }
               
            } else {
@@ -194,62 +219,105 @@
      
   }
   
   function _setup_ssh_rsa() {
   private function _setup_ssh_rsa() {
      global $app;
      $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 = $this->data['new']['ssh_rsa'];
      $usrdir = escapeshellcmd($this->data['new']['dir']);
      $sshdir = $usrdir.'/.ssh';
      $sshkeys= $usrdir.'/.ssh/authorized_keys';
		
      $app->uses('file');
      $sshrsa = $app->file->unix_nl($sshrsa);
      $sshrsa = $app->file->remove_blank_lines($sshrsa,0);
		
      // 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 ""');
			
         // use the public key that has been generated
         $userkey = $app->system->file_get_contents('/tmp/id_rsa.pub');
			
         // save keypair in client table
         $this->app->db->query("UPDATE client SET created_at = ".time().", id_rsa = '".$app->db->quote($app->system->file_get_contents('/tmp/id_rsa'))."', ssh_rsa = '".$app->db->quote($userkey)."' WHERE client_id = ".$id);
			
         $app->system->unlink('/tmp/id_rsa');
         $app->system->unlink('/tmp/id_rsa.pub');
         $this->app->log("ssh-rsa keypair generated for ".$username,LOGLEVEL_DEBUG);
      };

         // ssh-rsa authentication variables
         $sshrsa = escapeshellcmd($this->data['new']['ssh_rsa']);
         $usrdir = escapeshellcmd($this->data['new']['dir']);
         $sshdir = escapeshellcmd($this->data['new']['dir']).'/.ssh';
         $sshkeys= escapeshellcmd($this->data['new']['dir']).'/.ssh/authorized_keys';
         global $app;
			
         // determine the client id
         $id = $this->data['new']['sys_groupid'];
         if ($id>0) $id = $id -1;
			
         $user = $app->db->queryOneRecord("SELECT * FROM sys_user WHERE client_id  = ".$id);
         $userkey = $user['ssh_rsa'];
         $username= $user['username'];
			
         // If this user has no key yet, generate a pair
         if ($userkey == '') 
         {
            //Generate ssh-rsa-keys
            exec('ssh-keygen -t rsa -C '.$username.'-rsa-key-'.time().' -f /tmp/id_rsa -N ""');
				
            $privatekey = file_get_contents('/tmp/id_rsa');
            $publickey  = file_get_contents('/tmp/id_rsa.pub');
				
            exec('rm -f /tmp/id_rsa /tmp/id_rsa.pub');
				
            // Set the missing keypair
            $app->db->query("UPDATE sys_user SET id_rsa='$privatekey' ,ssh_rsa='$publickey' WHERE client_id = ".$id);
            $userkey = $publickey;
				
            $this->app->log("ssh-rsa keypair generated for ".$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 '' >> '$sshkeys'");
      if (!file_exists($sshkeys)){
         // add root's key
         $app->file->mkdirs($sshdir, '0700');
         if(is_file('/root/.ssh/authorized_keys')) $app->system->file_put_contents($sshkeys, $app->system->file_get_contents('/root/.ssh/authorized_keys'));
		
         // Remove duplicate keys
         $existing_keys = @file($sshkeys);
         $new_keys = explode("\n", $userkey);
         $final_keys_arr = @array_merge($existing_keys, $new_keys);
         $new_final_keys_arr = array();
         if(is_array($final_keys_arr) && !empty($final_keys_arr)){
            foreach($final_keys_arr as $key => $val){
               $new_final_keys_arr[$key] = trim($val);
            }
         }
         // add the custom key 
         exec("echo '$sshrsa' >> '$sshkeys'");
         exec("echo '' >> '$sshkeys'");
         $final_keys = implode("\n", array_flip(array_flip($new_final_keys_arr)));
         
         // set proper file permissions
         exec("chown -R ".escapeshellcmd($this->data['new']['puser']).":".escapeshellcmd($this->data['new']['pgroup'])." ".$usrdir);
         exec("chmod 600 '$sshkeys'");
         // add the user's key
         $app->system->file_put_contents($sshkeys, $final_keys);
         $app->file->remove_blank_lines($sshkeys);
         $this->app->log("ssh-rsa authorisation keyfile created in ".$sshkeys,LOGLEVEL_DEBUG);
      }
         
         $this->app->log("ssh-rsa key added to ".$sshkeys,LOGLEVEL_DEBUG);
      //* Get the keys
      $existing_keys = file($sshkeys);
      $new_keys = explode("\n", $sshrsa);
      $old_keys = explode("\n",$this->data['old']['ssh_rsa']);
			
      //* Remove all old keys
      if(is_array($old_keys)) {
         foreach($old_keys as $key => $val) {
            $k = array_search(trim($val),$existing_keys);
            unset($existing_keys[$k]);
         }
      }
			
      //* merge the remaining keys and the ones fom the ispconfig database.
      if(is_array($new_keys)) {
         $final_keys_arr = array_merge($existing_keys, $new_keys);
      } else {
         $final_keys_arr = $existing_keys;
      }
			
      $new_final_keys_arr = array();
      if(is_array($final_keys_arr) && !empty($final_keys_arr)){
         foreach($final_keys_arr as $key => $val){
            $new_final_keys_arr[$key] = trim($val);
         }
      }
      $final_keys = implode("\n", array_flip(array_flip($new_final_keys_arr)));
			
      // add the custom key 
      $app->system->file_put_contents($sshkeys, $final_keys);
      $app->file->remove_blank_lines($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'])." ".$sshdir);
      exec("chmod 600 '$sshkeys'");
		
   }