Added exception handling when qrz or hamqth is not available/accessible.

application/libraries/Hamqth.php

@@ -56,7 +56,8 @@ class Hamqth {
 
 	public function search($callsign, $key)
 	{
-
+	    $data = null;
+        try {
             // URL to the XML Source
             $xml_feed_url = 'https://www.hamqth.com/xml.php?id=' . $key . '&callsign=' . $callsign . '&prg=cloudlog';
 
@@ -70,6 +71,7 @@ class Hamqth {
 
             // Create XML object
             $xml = simplexml_load_string($xml);
+            if (empty($xml)) return;
 
             // Return Required Fields
             $data['callsign'] = (string)$xml->search->callsign;
@@ -90,7 +92,8 @@ class Hamqth {
                 $data['state'] = null;
                 $data['us_county'] = null;
             }
-
+        } finally {
             return $data;
         }
 	}
+}

application/libraries/Qrz.php

@@ -56,7 +56,8 @@ class Qrz {
 
 	public function search($callsign, $key)
 	{
-
+        $data = null;
+        try {
             // URL to the XML Source
             $xml_feed_url = 'http://xmldata.qrz.com/xml/current/?s=' . $key . ';callsign=' . $callsign . '';
 
@@ -70,6 +71,7 @@ class Qrz {
 
             // Create XML object
             $xml = simplexml_load_string($xml);
+            if (empty($xml)) return;
 
             // Return Required Fields
             $data['callsign'] = (string)$xml->Callsign->call;
@@ -88,8 +90,9 @@ class Qrz {
                 $data['state'] = null;
                 $data['us_county'] = null;
             }
-
+        } finally {
 
             return $data;
         }
 	}
+}

application/models/Logbook_model.php

@@ -2170,8 +2170,9 @@ class Logbook_model extends CI_Model {
 
     public function loadCallBook($callsign)
     {
-        if ($this->config->item('callbook') == "qrz" && $this->config->item('qrz_username') != null && $this->config->item('qrz_password') != null)
-        {
+        $callbook = null;
+        try {
+            if ($this->config->item('callbook') == "qrz" && $this->config->item('qrz_username') != null && $this->config->item('qrz_password') != null) {
                 // Lookup using QRZ
                 $this->load->library('qrz');
 
@@ -2183,8 +2184,7 @@ class Logbook_model extends CI_Model {
                 $callbook = $this->qrz->search($callsign, $this->session->userdata('qrz_session_key'));
             }
 
-        if ($this->config->item('callbook') == "hamqth" && $this->config->item('hamqth_username') != null && $this->config->item('hamqth_password') != null)
-        {
+            if ($this->config->item('callbook') == "hamqth" && $this->config->item('hamqth_username') != null && $this->config->item('hamqth_password') != null) {
                 // Load the HamQTH library
                 $this->load->library('hamqth');
 
@@ -2202,8 +2202,10 @@ class Logbook_model extends CI_Model {
                     $callbook = $this->hamqth->search($callsign, $this->session->userdata('hamqth_session_key'));
                 }
             }
+        } finally {
             return $callbook;
         }
+    }
 
     public function update_all_station_ids() {