Handle timeout more gracefully in background pings

Added a 2-second default timeout for XMLRPC/extended pings, configurable as [ping,timeout].
No longer repeating the entire ping section if we had an HTTP error during a submission.
For now, dropping the bad item and continuing on with others. (Todo: individual retry and cleaner discards of blacklisted broken-for-now sites.)

2 files changed, 11 insertions, 2 deletions

diff --git a/lib/default.php b/lib/default.php
index fa4ece10a..ab5f294de 100644
--- a/lib/default.php
+++ b/lib/default.php
@@ -188,7 +188,8 @@ $default =
         'cache' =>
         array('base' => null),
         'ping' =>
-        array('notify' => array()),
+        array('notify' => array(),
+              'timeout' => 2),
         'inboxes' =>
         array('enabled' => true), # ignored after 0.9.x
         'newuser' =>
diff --git a/lib/ping.php b/lib/ping.php
index 735af9ef1..be2933ae3 100644
--- a/lib/ping.php
+++ b/lib/ping.php
@@ -45,7 +45,15 @@ function ping_broadcast_notice($notice) {
 											   $tags));
 
             $request = HTTPClient::start();
-            $httpResponse = $request->post($notify_url, array('Content-Type: text/xml'), $req);
+            $request->setConfig('connect_timeout', common_config('ping', 'timeout'));
+            $request->setConfig('timeout', common_config('ping', 'timeout'));
+            try {
+                $httpResponse = $request->post($notify_url, array('Content-Type: text/xml'), $req);
+            } catch (Exception $e) {
+                common_log(LOG_ERR,
+                           "Exception pinging $notify_url: " . $e->getMessage());
+                continue;
+            }
 
             if (!$httpResponse || mb_strlen($httpResponse->getBody()) == 0) {
                 common_log(LOG_WARNING,