add logging of player point of presence

ui/analytics.js

@@ -38,7 +38,14 @@ type Analytics = {
   videoStartEvent: (string, number) => void,
   videoBufferEvent: (
     StreamClaim,
-    { timeAtBuffer: number, bufferDuration: number, bitRate: number, duration: number, userIdHash: string }
+    {
+      timeAtBuffer: number,
+      bufferDuration: number,
+      bitRate: number,
+      duration: number,
+      userIdHash: string,
+      playerPoweredBy: string,
+    }
   ) => void,
   emailProvidedEvent: () => void,
   emailVerifiedEvent: () => void,
@@ -185,13 +192,11 @@ const analytics: Analytics = {
     sendPromMetric('time_to_start', duration);
     sendMatomoEvent('Media', 'TimeToStart', claimId, duration);
   },
-  videoBufferEvent: (claim, data) => {
-    // @if TARGET='web'
-    sendPromMetric('buffer');
-    // @endif
 
+  videoBufferEvent: (claim, data) => {
     sendMatomoEvent('Media', 'BufferTimestamp', claim.claim_id, data.timeAtBuffer);
 
+    if (LBRY_WEB_BUFFER_API) {
       fetch(LBRY_WEB_BUFFER_API, {
         method: 'post',
         headers: {
@@ -206,11 +211,13 @@ const analytics: Analytics = {
             url: claim.canonical_url,
             position: data.timeAtBuffer,
             duration: data.bufferDuration,
+            player: data.playerPoweredBy,
             stream_duration: data.duration,
             stream_bitrate: data.bitRate,
           },
         }),
       });
+    }
   },
   tagFollowEvent: (tag, following) => {
     sendMatomoEvent('Tag', following ? 'Tag-Follow' : 'Tag-Unfollow', tag);

ui/component/viewers/videoViewer/view.jsx

@@ -87,7 +87,10 @@ function VideoViewer(props: Props) {
   }, [uri, previousUri]);
 
   function doTrackingBuffered(e: Event, data: any) {
+    fetch(source, { method: 'HEAD' }).then(response => {
+      data.playerPoweredBy = response.headers.get('x-powered-by');
       doAnalyticsBuffer(uri, data);
+    });
   }
 
   function doTrackingFirstPlay(e: Event, data: any) {

ui/redux/actions/app.js

@@ -491,6 +491,7 @@ export function doAnalyticsBuffer(uri, bufferData) {
       bitRate,
       userIdHash,
       duration: fileDurationInSeconds,
+      playerPoweredBy: bufferData.playerPoweredBy,
     });
   };
 }