From f038c0a4cecc7a7a56b6d175c3ec42c1f80a4ac7 Mon Sep 17 00:00:00 2001
From: tbrehm <t.brehm@ispconfig.org>
Date: Mon, 13 Feb 2012 09:00:09 -0500
Subject: [PATCH] Implemented: FS#2024 - Sanity check zones with named-checkzone
---
server/plugins-available/shelluser_jailkit_plugin.inc.php | 197 ++++++++++++++++++++++++++++++++++---------------
1 files changed, 136 insertions(+), 61 deletions(-)
diff --git a/server/plugins-available/shelluser_jailkit_plugin.inc.php b/server/plugins-available/shelluser_jailkit_plugin.inc.php
index ffe94fa..86e92f6 100755
--- a/server/plugins-available/shelluser_jailkit_plugin.inc.php
+++ b/server/plugins-available/shelluser_jailkit_plugin.inc.php
@@ -91,7 +91,10 @@
$this->_add_jailkit_user();
- $command .= 'usermod -U '.escapeshellcmd($data['new']['username']);
+ //* call the ssh-rsa update function
+ $this->_setup_ssh_rsa();
+
+ $command .= 'usermod -s /usr/sbin/jk_chrootsh -U '.escapeshellcmd($data['new']['username']);
exec($command);
$this->_update_website_security_level();
@@ -129,6 +132,9 @@
$this->_setup_jailkit_chroot();
$this->_add_jailkit_user();
+ //* call the ssh-rsa update function
+ $this->_setup_ssh_rsa();
+
$this->_update_website_security_level();
}
@@ -160,7 +166,7 @@
//exec('rm -rf '.$data['old']['dir'].$jailkit_chroot_userhome);
if(@is_dir($data['old']['dir'].$jailkit_chroot_userhome)) {
- $command = 'userdel';
+ $command = 'userdel -f';
$command .= ' '.escapeshellcmd($data['old']['username']);
exec($command);
$app->log("Jailkit Plugin -> delete chroot home:".$data['old']['dir'].$jailkit_chroot_userhome,LOGLEVEL_DEBUG);
@@ -239,6 +245,8 @@
function _add_jailkit_user()
{
+ global $app;
+
//add the user to the chroot
$jailkit_chroot_userhome = $this->_get_home_dir($this->data['new']['username']);
$jailkit_chroot_puserhome = $this->_get_home_dir($this->data['new']['puser']);
@@ -258,76 +266,44 @@
$command .= ' '.$this->data['new']['puser'];
$command .= ' '.$jailkit_chroot_puserhome;
exec($command);
+
+ //* Change the homedir of the shell user and parent user
+ //* We have to do this manually as the usermod command fails
+ //* when the user is logged in or a command is running under that user
+ $passwd_file_array = file('/etc/passwd');
+ $passwd_out = '';
+ if(is_array($passwd_file_array)) {
+ foreach($passwd_file_array as $line) {
+ $line = trim($line);
+ $parts = explode(':',$line);
+ if($parts[0] == $this->data['new']['username']) {
+ $parts[5] = escapeshellcmd($this->data['new']['dir'].'/.'.$jailkit_chroot_userhome);
+ $parts[6] = escapeshellcmd('/usr/sbin/jk_chrootsh');
+ $new_line = implode(':',$parts);
+ copy('/etc/passwd','/etc/passwd~');
+ chmod('/etc/passwd~',0600);
+ $app->uses('system');
+ $app->system->replaceLine('/etc/passwd',$line,$new_line,1,0);
+ }
+ }
+ }
+
$this->app->log("Added jailkit user to chroot with command: ".$command,LOGLEVEL_DEBUG);
-
- mkdir(escapeshellcmd($this->data['new']['dir'].$jailkit_chroot_userhome), 0755, true);
+
+ if(!is_dir($this->data['new']['dir'].$jailkit_chroot_userhome)) mkdir(escapeshellcmd($this->data['new']['dir'].$jailkit_chroot_userhome), 0755, true);
chown(escapeshellcmd($this->data['new']['dir'].$jailkit_chroot_userhome), $this->data['new']['username']);
chgrp(escapeshellcmd($this->data['new']['dir'].$jailkit_chroot_userhome), $this->data['new']['pgroup']);
$this->app->log("Added created jailkit user home in : ".$this->data['new']['dir'].$jailkit_chroot_userhome,LOGLEVEL_DEBUG);
- mkdir(escapeshellcmd($this->data['new']['dir'].$jailkit_chroot_puserhome), 0755, true);
+ if(!is_dir($this->data['new']['dir'].$jailkit_chroot_puserhome)) mkdir(escapeshellcmd($this->data['new']['dir'].$jailkit_chroot_puserhome), 0755, true);
chown(escapeshellcmd($this->data['new']['dir'].$jailkit_chroot_puserhome), $this->data['new']['puser']);
chgrp(escapeshellcmd($this->data['new']['dir'].$jailkit_chroot_puserhome), $this->data['new']['pgroup']);
- $this->app->log("Added created jailkit parent user home in : ".$this->data['new']['dir'].$jailkit_chroot_puserhome,LOGLEVEL_DEBUG);
- /*
- // ssh-rsa authentication variables
- $sshrsa = escapeshellcmd($this->data['new']['ssh_rsa']);
- $usrdir = escapeshellcmd($this->data['new']['dir']).'/'.$jailkit_chroot_userhome;
- $sshdir = escapeshellcmd($this->data['new']['dir']).'/'.$jailkit_chroot_userhome.'/.ssh';
- $sshkeys= escapeshellcmd($this->data['new']['dir']).'/'.$jailkit_chroot_userhome.'/.ssh/authorized_keys';
- global $app;
+ $this->app->log("Added jailkit parent user home in : ".$this->data['new']['dir'].$jailkit_chroot_puserhome,LOGLEVEL_DEBUG);
- // 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 '' >> '$sshkeys'");
- }
- // add the custom key
- exec("echo '$sshrsa' >> '$sshkeys'");
- exec("echo '' >> '$sshkeys'");
-
- // set proper file permissions
- exec("chown -R ".escapeshellcmd($this->data['new']['puser']).":".escapeshellcmd($this->data['new']['pgroup'])." ".$usrdir);
- exec("chmod 600 '$sshkeys'");
-
- $this->app->log("ssh-rsa key added to ".$sshkeys,LOGLEVEL_DEBUG);
- */
+
}
//* Update the website root directory permissions depending on the security level
@@ -356,6 +332,105 @@
exec($command);
}
+ private function _setup_ssh_rsa() {
+ global $app;
+ $this->app->log("ssh-rsa setup shelluser_jailkit",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']).'/'.$this->_get_home_dir($this->data['new']['username']);
+ $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 = file_get_contents('/tmp/id_rsa.pub');
+
+ // save keypair in client table
+ $this->app->db->query("UPDATE client SET created_at = ".time().", id_rsa = '".file_get_contents('/tmp/id_rsa')."', ssh_rsa = '".$userkey."' WHERE client_id = ".$id);
+
+ 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
+ $app->file->mkdirs($sshdir, '0755');
+ if(is_file('/root/.ssh/authorized_keys')) file_put_contents($sshkeys, 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);
+ }
+ }
+ $final_keys = implode("\n", array_flip(array_flip($new_final_keys_arr)));
+
+ // add the user's key
+ file_put_contents($sshkeys, $final_keys);
+ $app->file->remove_blank_lines($sshkeys);
+ $this->app->log("ssh-rsa authorisation keyfile created in ".$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
+ 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'])." ".$sshdir);
+ exec("chmod 700 ".$sshdir);
+ exec("chmod 600 '$sshkeys'");
+
+ }
} // end class
?>
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