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Got most of the stages working for the LDAP troubleshooter

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Brady Wetherington 2020-08-11 17:59:23 -07:00 committed by Brady Wetherington
parent 8cd5ec6799
commit ffd8f583b4
1 changed files with 74 additions and 15 deletions
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89
app/Console/Commands/LdapTroubleshooter.php
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@ -67,7 +67,7 @@ class LdapTroubleshooter extends Command
exit(-1);
}
}
$settings = Setting::first();
$settings = Setting::getSettings();
//$this->line(print_r($settings,true));
$this->info("STAGE 1: Checking settings");
if(!$settings->ldap_enabled) {
@ -109,7 +109,11 @@ class LdapTroubleshooter extends Command
$this->error("ERROR: DNS lookup of host: ".$parsed['host']." has failed. ABORTING.");
exit(-1);
}
$this->info("IP's? ".print_r($ips,true));
foreach($ips as $ip) {
if(!isset($ip['ip'])) {
continue;
}
$raw_ips[]=$ip['ip'];
if($ip['ip'] == "127.0.0.1") {
$this->error("WARNING: Using the localhost IP as the LDAP server. This is usually wrong");
@ -153,12 +157,14 @@ class LdapTroubleshooter extends Command
$this->info("STAGE 3: Determine encryption algorithm, if any");
$ldap_urls = [];
$pretty_ldap_urls = [];
foreach($open_ports as $port) {
$this->line("Trying TLS first for port $port");
$ldap_url = "ldaps://".$parsed['host'].":$port";
if($this->test_anonymous_bind($ldap_url)) {
$this->info("Anonymous bind succesful to $ldap_url!");
$ldap_urls[] = [ $ldap_url, true, false ];
$pretty_ldap_urls[] = [ $ldap_url, "YES", "no" ];
continue; // TODO - lots of copypasta in these if(test_anonymous_bind()) routines...
} else {
$this->error("WARNING: Failed to bind to $ldap_url - trying without certificate checks.");
@ -167,6 +173,7 @@ class LdapTroubleshooter extends Command
if($this->test_anonymous_bind($ldap_url, false)) {
$this->info("Anonymous bind succesful to $ldap_url with certifcate-checks disabled");
$ldap_urls[] = [ $ldap_url, false, false ];
$pretty_ldap_urls[] = [ $ldap_url, "no", "no" ];
continue;
} else {
$this->error("WARNING: Failed to bind to $ldap_url with certificate checks disabled. Trying unencrypted with STARTTLS");
@ -176,6 +183,7 @@ class LdapTroubleshooter extends Command
if($this->test_anonymous_bind($ldap_url, true, true)) {
$this->info("Plain connection to $ldap_url with STARTTLS succesful!");
$ldap_urls[] = [ $ldap_url, true, false ];
$pretty_ldap_urls[] = [ $ldap_url, "YES", "no" ];
continue;
} else {
$this->error("WARNING: Failed to bind to $ldap_url with STARTTLS enabled. Trying without STARTTLS");
@ -184,41 +192,92 @@ class LdapTroubleshooter extends Command
if($this->test_anonymous_bind($ldap_url)) {
$this->info("Plain connection to $ldap_url succesful!");
$ldap_urls[] = [ $ldap_url, true, false ];
$pretty_ldap_urls[] = [ $ldap_url, "YES", false ];
continue;
} else {
$this->error("WARNING: Failed to bind to $ldap_url. Giving up on port $port");
}
}
$this->info(print_r($ldap_urls,true));
if(count($ldap_urls) > 0 ) {
$this->info("Found working LDAP URL's: ");
foreach($ldap_urls as $ldap_url) { // TODO maybe do this as a $this->table() instead?
$this->info("LDAP URL: ".$ldap_url[0]);
$this->info($ldap_url[0]. ($ldap_url[1] ? " certificate checks enabled" : " certificate checks disabled"). $ldap_url[2] ? " STARTTLS Enabled ": " STARTTLS Disabled");
}
$this->table(["URL", "Cert Checks Enabled?", "STARTTLS Enabled?"],$pretty_ldap_urls);
} else {
$this->error("ERROR - no valid LDAP URL's available - ABORTING");
}
$this->info("STAGE 4: Test Administrative Bind for LDAP Sync");
foreach($ldap_urls AS $ldap_url) {
$this->test_authed_bind($ldap_url[0], $ldap_url[1], $ldap_url[2], $settings->ldap_uname, \Crypt::decrypt($settings->ldap_pword));
}
$this->info("STAGE 5: Test LDAP Login to Snipe-IT");
foreach($ldap_urls AS $ldap_url) {
$this->info("Starting auth to ".$ldap_url[0]);
while(true) {
if(!$this->confirm('Do you wish to try to authenticate to the directory?')) {
break;
}
$username = $this->ask("Username");
$password = $this->secret("Password");
$this->test_authed_bind($ldap_url[0], $ldap_url[1], $ldap_url[2], $username, $password);
}
}
$this->info("LDAP TROUBLESHOOTING COMPLETE!");
}
public function connect_to_ldap($ldap_url, $check_cert, $start_tls)
{
$lconn = ldap_connect($ldap_url);
ldap_set_option($lconn,LDAP_OPT_PROTOCOL_VERSION,3); // should we 'test' different protocol versions here? Does anyone even use anything other than LDAPv3?
// no - it's formally deprecated: https://tools.ietf.org/html/rfc3494
if(!$check_cert) {
ldap_set_option($lconn, LDAP_OPT_X_TLS_REQUIRE_CERT, 0);
}
if($start_tls) {
if(!ldap_start_tls($lconn)) {
$this->error("WARNING: Unable to start TLS");
return false;
}
}
if(!$lconn) {
$this->error("WARNING: Failed to generate connection string - using: ".$ldap_url);
return false;
}
return $lconn;
}
public function test_anonymous_bind($ldap_url, $check_cert = true, $start_tls = false)
{
try {
$lconn = ldap_connect($ldap_url);
if(!$check_cert) {
ldap_set_option($lconn, LDAP_OPT_X_TLS_REQUIRE_CERT, 0);
}
if($start_tls) {
if(!ldap_start_tls($lconn)) {
$this->error("WARNING: Unable to start TLS");
return false;
}
}
if(!$lconn) {
$this->error("WARNING: Failed to generate connection string - using: ".$ldap_url);
return false;
}
$lconn = $this->connect_to_ldap($ldap_url,$check_cert,$start_tls);
return ldap_bind($lconn);
} catch (Exception $e) {
$this->error("WARNING: Exception caught during bind - ".$e->getMessage());
return false;
}
}
public function test_authed_bind($ldap_url, $check_cert, $start_tls, $username, $password)
{
try {
$lconn = $this->connect_to_ldap($ldap_url,$check_cert,$start_tls);
$bind_results = ldap_bind($lconn,$username,$password);
if(!$bind_results) {
$this->error("WARNING: Failed to bind to $ldap_url as $username");
} else {
$this->info("SUCCESS - Able to bind to $ldap_url as $username");
}
return $bind_results;
} catch (Exception $e) {
$this->error("WARNING: Exception caught during Admin bind - ".$e->getMessage());
}
}
}