add BOB lookuplocal support, checker retries

Signed-off-by: r4sas <r4sas@i2pmail.org>

config.php.dist

@@ -16,6 +16,7 @@ $options = [
     'bob_port'     => '2827',
     'bob_options'  => 'inbound.quantity=5 outbound.quantity=5 inbound.length=1 outbound.length=1 i2cp.leaseSetType=3',
     'bob_nick'     => 'hostchecker',
+    'check_tries'  => 1,
     'http_proxy'   => 'tcp://127.0.0.1:4444', // this is HTTP proxy, which must be specified as tcp protocol because we using stream context
 
     /* Service settings */

lib/bob.php

@@ -136,6 +136,19 @@ class BOB {
         return false;
     }
 
+    public function lookuplocal(string $address): bool
+    {
+        $command = "lookuplocal " . $address . "\n";
+        socket_write($this->sock, $command, strlen($command));
+
+        $response = socket_read($this->sock, 1024, PHP_NORMAL_READ);
+
+        if(preg_match('/^OK/', $response))
+            return true;
+
+        return false;
+    }
+
     public function stop()
     {
         $command = "stop\n";

lib/checker.php

@@ -27,9 +27,19 @@ class Checker implements Task
     public function run(Environment $environment)
     {
         $bob = new BOB($this->options);
-
         $bob->getnick();
-        $result = $bob->lookup($this->base32 . ".b32.i2p");
+
+        $result = false;
+        for ($i = 0, $tries = $this->options['check_tries']; $i < $tries; ++$i) {
+            $result = $bob->lookuplocal($this->base32 . ".b32.i2p");
+            if(!$result) {
+                $result = $bob->lookup($this->base32 . ".b32.i2p");
+            }
+
+            if ($result) {
+                break;
+            }
+        }
 
         $bob = null;
         echo "Processed " . $this->base32 . ": " . ($result ? "online" : "offline") . PHP_EOL;