Set a default 2-second timeout on Geonames web service lookups. After a failure,...

Makes a Geonames outage much less disruptive to site operations.

diff --git a/plugins/GeonamesPlugin.php b/plugins/GeonamesPlugin.php
index f018e269439f5d6bf3e0e5e2efd5c2f4db5ef7ad..718af9e0b500d836fbe031e9f387f4b53a32b12d 100644 (file)
--- a/plugins/GeonamesPlugin.php
+++ b/plugins/GeonamesPlugin.php
@@ -55,9 +55,13 @@ class GeonamesPlugin extends Plugin
     public $username = null;
     public $token    = null;
     public $expiry   = 7776000; // 90-day expiry
+    public $timeout  = 2;       // Web service timeout in seconds.
+    public $timeoutWindow = 60; // Further lookups in this process will be disabled for N seconds after a timeout.
     public $cachePrefix = null; // Optional shared memcache prefix override
                                 // to share lookups between local instances.
 
+    protected $lastTimeout = null; // timestamp of last web service timeout
+
     /**
      * convert a name into a Location object
      *
@@ -437,9 +441,21 @@ class GeonamesPlugin extends Plugin
 
     function getGeonames($method, $params)
     {
+        if ($this->lastTimeout && (time() - $this->lastTimeout < $this->timeoutWindow)) {
+            throw new Exception("skipping due to recent web service timeout");
+        }
+
         $client = HTTPClient::start();
+        $client->setConfig('connect_timeout', $this->timeout);
+        $client->setConfig('timeout', $this->timeout);
 
-        $result = $client->get($this->wsUrl($method, $params));
+        try {
+            $result = $client->get($this->wsUrl($method, $params));
+        } catch (Exception $e) {
+            common_log(LOG_ERR, __METHOD__ . ": " . $e->getMessage());
+            $this->lastTimeout = time();
+            throw $e;
+        }
 
         if (!$result->isOk()) {
             throw new Exception("HTTP error code " . $result->code);