fix(FEC-7815): Support playManifest redirects for external streams

src/common/utils/jsonp-helper.js

@@ -0,0 +1,53 @@
+// @flow
+import {Env} from 'playkit-js'
+
+/**
+ * jsonp callback function, returns the direct manifest uri
+ * @param {Object} data - the json object that returns from the server
+ * @param {string} uri - original request uri
+ * @returns {string} returns the direct uri
+ */
+function getDirectManfiestUri(data: Object, uri: string): string {
+  const getHostName = uri => {
+    const parser = document.createElement('a');
+    parser.href = uri;
+    return parser.hostname
+  };
+  // if the json contains one url, it means it is a redirect url. if it contains few urls, it means its the flavours
+  //so we should use the original url.
+  const uriHost = getHostName(uri);
+  const hasOneFlavor = data && data.flavors && (data.flavors.length === 1);
+  const flavorUriHost = hasOneFlavor && getHostName(data.flavors[0].url);
+  if (hasOneFlavor && (uriHost !== flavorUriHost)) {
+    return data.flavors[0].url;
+  } else {
+    return uri;
+  }
+}
+
+/**
+ * returns if we should use our jsonp http plugin
+ * @returns {boolean} should use external stream requests redirect on manifests
+ */
+function shouldUseExternalStreamRedirect(): boolean {
+  const affectedBrowsers = ['IE', 'Edge'];
+  const affectedVendors = ['panasonic'];
+  return (affectedBrowsers.includes(Env.browser.name) ||
+    (Env.device.vendor && affectedVendors.includes(Env.device.vendor)));
+}
+
+/**
+ * add jsonp configuration to the general config
+ * @param {Object} config - configuration relevant to jsonp
+ * @returns {void}
+ */
+function configureExternalStreamRedirect(config: Object): void {
+  config.playback.options = config.playback.options || {};
+  let adapters = config.playback.options.adapters = config.playback.options.adapters || {};
+  if (typeof adapters.forceRedirectExternalStreams !== "boolean") {
+    config.playback.options.adapters.forceRedirectExternalStreams = shouldUseExternalStreamRedirect();
+  }
+  config.playback.options.adapters.redirectExternalStreamsCallback = getDirectManfiestUri;
+}
+
+export {configureExternalStreamRedirect}

src/common/utils/setup-helpers.js

@@ -7,6 +7,7 @@ import StorageManager from '../storage/storage-manager'
 import {setLogLevel as _setLogLevel, LogLevel} from './logger'
 import type {LogLevelObject} from './logger'
 import {DEFAULT_THUMBS_SLICES, DEFAULT_THUMBS_WIDTH, getThumbSlicesUrl} from './thumbs'
+import {configureExternalStreamRedirect} from "./jsonp-helper";
 
 const CONTAINER_CLASS_NAME: string = 'kaltura-player-container';
 const KALTURA_PLAYER_DEBUG_QS: string = 'debugKalturaPlayer';
@@ -251,6 +252,7 @@ function getDefaultOptions(options: PartialKalturaPlayerOptionsObject): KalturaP
   checkNativeHlsSupport(defaultOptions.player);
   checkNativeTextTracksSupport(defaultOptions.player);
   setDefaultAnalyticsPlugin(defaultOptions.player);
+  configureExternalStreamRedirect(defaultOptions.player);
   return defaultOptions;
 }