1 files changed, 620 insertions, 0 deletions
diff --git a/browser/extensions/webcompat/shims/google-ima.js b/browser/extensions/webcompat/shims/google-ima.js
new file mode 100644
index 0000000000..1f5e56239d
--- /dev/null
+++ b/browser/extensions/webcompat/shims/google-ima.js
@@ -0,0 +1,620 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/**
+ * Bug 1713690 - Shim Google Interactive Media Ads ima3.js
+ *
+ * Many sites use ima3.js for ad bidding and placement, often in conjunction
+ * with Google Publisher Tags, Prebid.js and/or other scripts. This shim
+ * provides a stubbed-out version of the API which helps work around related
+ * site breakage, such as black bxoes where videos ought to be placed.
+ */
+
+if (!window.google?.ima?.VERSION) {
+  const VERSION = "3.517.2";
+
+  const CheckCanAutoplay = (function () {
+    // Sourced from: https://searchfox.org/mozilla-central/source/dom/media/gtest/negative_duration.mp4
+    const TEST_VIDEO = new Blob(
+      [
+        new Uint32Array([
+          469762048, 1887007846, 1752392036, 0, 913273705, 1717987696,
+          828601953, -1878917120, 1987014509, 1811939328, 1684567661, 0, 0, 0,
+          -402456576, 0, 256, 1, 0, 0, 256, 0, 0, 0, 256, 0, 0, 0, 64, 0, 0, 0,
+          0, 0, 0, 33554432, -201261056, 1801548404, 1744830464, 1684564852,
+          251658241, 0, 0, 0, 0, 16777216, 0, -1, -1, 0, 0, 0, 0, 256, 0, 0, 0,
+          256, 0, 0, 0, 64, 5, 53250, -2080309248, 1634296941, 738197504,
+          1684563053, 1, 0, 0, 0, 0, -2137614336, -1, -1, 50261, 754974720,
+          1919706216, 0, 0, 1701079414, 0, 0, 0, 1701079382, 1851869295,
+          1919249508, 16777216, 1852402979, 102, 1752004116, 100, 1, 0, 0,
+          1852400676, 102, 1701995548, 102, 0, 1, 1819440396, 32, 1, 1651799011,
+          108, 1937011607, 100, 0, 1, 1668702599, 49, 0, 1, 0, 0, 0, 33555712,
+          4718800, 4718592, 0, 65536, 0, 0, 0, 0, 0, 0, 0, 0, 16776984,
+          1630601216, 21193590, -14745500, 1729626337, -1407254428, 89161945,
+          1049019, 9453056, -251611125, 27269507, -379058688, -1329024392,
+          268435456, 1937011827, 0, 0, 268435456, 1668510835, 0, 0, 335544320,
+          2054386803, 0, 0, 0, 268435456, 1868788851, 0, 0, 671088640,
+          2019915373, 536870912, 2019914356, 0, 16777216, 16777216, 0, 0, 0,
+        ]),
+      ],
+      { type: "video/mp4" }
+    );
+
+    let testVideo = undefined;
+
+    return function () {
+      if (!testVideo) {
+        testVideo = document.createElement("video");
+        testVideo.style =
+          "position:absolute; width:0; height:0; left:0; right:0; z-index:-1; border:0";
+        testVideo.setAttribute("muted", "muted");
+        testVideo.setAttribute("playsinline", "playsinline");
+        testVideo.src = URL.createObjectURL(TEST_VIDEO);
+        document.body.appendChild(testVideo);
+      }
+      return testVideo.play();
+    };
+  })();
+
+  let ima = {};
+
+  class AdDisplayContainer {
+    destroy() {}
+    initialize() {}
+  }
+
+  class ImaSdkSettings {
+    #c = true;
+    #f = {};
+    #i = false;
+    #l = "";
+    #p = "";
+    #r = 0;
+    #t = "";
+    #v = "";
+    getCompanionBackfill() {}
+    getDisableCustomPlaybackForIOS10Plus() {
+      return this.#i;
+    }
+    getFeatureFlags() {
+      return this.#f;
+    }
+    getLocale() {
+      return this.#l;
+    }
+    getNumRedirects() {
+      return this.#r;
+    }
+    getPlayerType() {
+      return this.#t;
+    }
+    getPlayerVersion() {
+      return this.#v;
+    }
+    getPpid() {
+      return this.#p;
+    }
+    isCookiesEnabled() {
+      return this.#c;
+    }
+    setAutoPlayAdBreaks() {}
+    setCompanionBackfill() {}
+    setCookiesEnabled(c) {
+      this.#c = !!c;
+    }
+    setDisableCustomPlaybackForIOS10Plus(i) {
+      this.#i = !!i;
+    }
+    setFeatureFlags(f) {
+      this.#f = f;
+    }
+    setLocale(l) {
+      this.#l = l;
+    }
+    setNumRedirects(r) {
+      this.#r = r;
+    }
+    setPlayerType(t) {
+      this.#t = t;
+    }
+    setPlayerVersion(v) {
+      this.#v = v;
+    }
+    setPpid(p) {
+      this.#p = p;
+    }
+    setSessionId(s) {}
+    setVpaidAllowed(a) {}
+    setVpaidMode(m) {}
+  }
+  ImaSdkSettings.CompanionBackfillMode = {
+    ALWAYS: "always",
+    ON_MASTER_AD: "on_master_ad",
+  };
+  ImaSdkSettings.VpaidMode = {
+    DISABLED: 0,
+    ENABLED: 1,
+    INSECURE: 2,
+  };
+
+  class EventHandler {
+    #listeners = new Map();
+
+    _dispatch(e) {
+      const listeners = this.#listeners.get(e.type) || [];
+      for (const listener of Array.from(listeners)) {
+        try {
+          listener(e);
+        } catch (r) {
+          console.error(r);
+        }
+      }
+    }
+
+    addEventListener(t, c) {
+      if (!this.#listeners.has(t)) {
+        this.#listeners.set(t, new Set());
+      }
+      this.#listeners.get(t).add(c);
+    }
+
+    removeEventListener(t, c) {
+      this.#listeners.get(t)?.delete(c);
+    }
+  }
+
+  class AdsLoader extends EventHandler {
+    #settings = new ImaSdkSettings();
+    contentComplete() {}
+    destroy() {}
+    getSettings() {
+      return this.#settings;
+    }
+    getVersion() {
+      return VERSION;
+    }
+    requestAds(r, c) {
+      // If autoplay is disabled and the page is trying to autoplay a tracking
+      // ad, then IMA fails with an error, and the page is expected to request
+      // ads again later when the user clicks to play.
+      CheckCanAutoplay().then(
+        () => {
+          const { ADS_MANAGER_LOADED } = AdsManagerLoadedEvent.Type;
+          this._dispatch(new ima.AdsManagerLoadedEvent(ADS_MANAGER_LOADED));
+        },
+        () => {
+          const e = new ima.AdError(
+            "adPlayError",
+            1205,
+            1205,
+            "The browser prevented playback initiated without user interaction."
+          );
+          this._dispatch(new ima.AdErrorEvent(e));
+        }
+      );
+    }
+  }
+
+  class AdsManager extends EventHandler {
+    #volume = 1;
+    collapse() {}
+    configureAdsManager() {}
+    destroy() {}
+    discardAdBreak() {}
+    expand() {}
+    focus() {}
+    getAdSkippableState() {
+      return false;
+    }
+    getCuePoints() {
+      return [0];
+    }
+    getCurrentAd() {
+      return currentAd;
+    }
+    getCurrentAdCuePoints() {
+      return [];
+    }
+    getRemainingTime() {
+      return 0;
+    }
+    getVolume() {
+      return this.#volume;
+    }
+    init(w, h, m, e) {}
+    isCustomClickTrackingUsed() {
+      return false;
+    }
+    isCustomPlaybackUsed() {
+      return false;
+    }
+    pause() {}
+    requestNextAdBreak() {}
+    resize(w, h, m) {}
+    resume() {}
+    setVolume(v) {
+      this.#volume = v;
+    }
+    skip() {}
+    start() {
+      requestAnimationFrame(() => {
+        for (const type of [
+          AdEvent.Type.LOADED,
+          AdEvent.Type.STARTED,
+          AdEvent.Type.CONTENT_RESUME_REQUESTED,
+          AdEvent.Type.AD_BUFFERING,
+          AdEvent.Type.FIRST_QUARTILE,
+          AdEvent.Type.MIDPOINT,
+          AdEvent.Type.THIRD_QUARTILE,
+          AdEvent.Type.COMPLETE,
+          AdEvent.Type.ALL_ADS_COMPLETED,
+        ]) {
+          try {
+            this._dispatch(new ima.AdEvent(type));
+          } catch (e) {
+            console.error(e);
+          }
+        }
+      });
+    }
+    stop() {}
+    updateAdsRenderingSettings(s) {}
+  }
+
+  class AdsRenderingSettings {}
+
+  class AdsRequest {
+    setAdWillAutoPlay() {}
+    setAdWillPlayMuted() {}
+    setContinuousPlayback() {}
+  }
+
+  class AdPodInfo {
+    getAdPosition() {
+      return 1;
+    }
+    getIsBumper() {
+      return false;
+    }
+    getMaxDuration() {
+      return -1;
+    }
+    getPodIndex() {
+      return 1;
+    }
+    getTimeOffset() {
+      return 0;
+    }
+    getTotalAds() {
+      return 1;
+    }
+  }
+
+  class Ad {
+    _pi = new AdPodInfo();
+    getAdId() {
+      return "";
+    }
+    getAdPodInfo() {
+      return this._pi;
+    }
+    getAdSystem() {
+      return "";
+    }
+    getAdvertiserName() {
+      return "";
+    }
+    getApiFramework() {
+      return null;
+    }
+    getCompanionAds() {
+      return [];
+    }
+    getContentType() {
+      return "";
+    }
+    getCreativeAdId() {
+      return "";
+    }
+    getCreativeId() {
+      return "";
+    }
+    getDealId() {
+      return "";
+    }
+    getDescription() {
+      return "";
+    }
+    getDuration() {
+      return 8.5;
+    }
+    getHeight() {
+      return 0;
+    }
+    getMediaUrl() {
+      return null;
+    }
+    getMinSuggestedDuration() {
+      return -2;
+    }
+    getSkipTimeOffset() {
+      return -1;
+    }
+    getSurveyUrl() {
+      return null;
+    }
+    getTitle() {
+      return "";
+    }
+    getTraffickingParameters() {
+      return {};
+    }
+    getTraffickingParametersString() {
+      return "";
+    }
+    getUiElements() {
+      return [""];
+    }
+    getUniversalAdIdRegistry() {
+      return "unknown";
+    }
+    getUniversalAdIds() {
+      return [""];
+    }
+    getUniversalAdIdValue() {
+      return "unknown";
+    }
+    getVastMediaBitrate() {
+      return 0;
+    }
+    getVastMediaHeight() {
+      return 0;
+    }
+    getVastMediaWidth() {
+      return 0;
+    }
+    getWidth() {
+      return 0;
+    }
+    getWrapperAdIds() {
+      return [""];
+    }
+    getWrapperAdSystems() {
+      return [""];
+    }
+    getWrapperCreativeIds() {
+      return [""];
+    }
+    isLinear() {
+      return true;
+    }
+    isSkippable() {
+      return true;
+    }
+  }
+
+  class CompanionAd {
+    getAdSlotId() {
+      return "";
+    }
+    getContent() {
+      return "";
+    }
+    getContentType() {
+      return "";
+    }
+    getHeight() {
+      return 1;
+    }
+    getWidth() {
+      return 1;
+    }
+  }
+
+  class AdError {
+    #errorCode = -1;
+    #message = "";
+    #type = "";
+    #vastErrorCode = -1;
+    constructor(type, code, vast, message) {
+      this.#errorCode = code;
+      this.#message = message;
+      this.#type = type;
+      this.#vastErrorCode = vast;
+    }
+    getErrorCode() {
+      return this.#errorCode;
+    }
+    getInnerError() {}
+    getMessage() {
+      return this.#message;
+    }
+    getType() {
+      return this.#type;
+    }
+    getVastErrorCode() {
+      return this.#vastErrorCode;
+    }
+    toString() {
+      return `AdError ${this.#errorCode}: ${this.#message}`;
+    }
+  }
+  AdError.ErrorCode = {};
+  AdError.Type = {};
+
+  const isEngadget = () => {
+    try {
+      for (const ctx of Object.values(window.vidible._getContexts())) {
+        if (ctx.getPlayer()?.div?.innerHTML.includes("www.engadget.com")) {
+          return true;
+        }
+      }
+    } catch (_) {}
+    return false;
+  };
+
+  const currentAd = isEngadget() ? undefined : new Ad();
+
+  class AdEvent {
+    constructor(type) {
+      this.type = type;
+    }
+    getAd() {
+      return currentAd;
+    }
+    getAdData() {
+      return {};
+    }
+  }
+  AdEvent.Type = {
+    AD_BREAK_READY: "adBreakReady",
+    AD_BUFFERING: "adBuffering",
+    AD_CAN_PLAY: "adCanPlay",
+    AD_METADATA: "adMetadata",
+    AD_PROGRESS: "adProgress",
+    ALL_ADS_COMPLETED: "allAdsCompleted",
+    CLICK: "click",
+    COMPLETE: "complete",
+    CONTENT_PAUSE_REQUESTED: "contentPauseRequested",
+    CONTENT_RESUME_REQUESTED: "contentResumeRequested",
+    DURATION_CHANGE: "durationChange",
+    EXPANDED_CHANGED: "expandedChanged",
+    FIRST_QUARTILE: "firstQuartile",
+    IMPRESSION: "impression",
+    INTERACTION: "interaction",
+    LINEAR_CHANGE: "linearChange",
+    LINEAR_CHANGED: "linearChanged",
+    LOADED: "loaded",
+    LOG: "log",
+    MIDPOINT: "midpoint",
+    PAUSED: "pause",
+    RESUMED: "resume",
+    SKIPPABLE_STATE_CHANGED: "skippableStateChanged",
+    SKIPPED: "skip",
+    STARTED: "start",
+    THIRD_QUARTILE: "thirdQuartile",
+    USER_CLOSE: "userClose",
+    VIDEO_CLICKED: "videoClicked",
+    VIDEO_ICON_CLICKED: "videoIconClicked",
+    VIEWABLE_IMPRESSION: "viewable_impression",
+    VOLUME_CHANGED: "volumeChange",
+    VOLUME_MUTED: "mute",
+  };
+
+  class AdErrorEvent {
+    type = "adError";
+    #error = "";
+    constructor(error) {
+      this.#error = error;
+    }
+    getError() {
+      return this.#error;
+    }
+    getUserRequestContext() {
+      return {};
+    }
+  }
+  AdErrorEvent.Type = {
+    AD_ERROR: "adError",
+  };
+
+  const manager = new AdsManager();
+
+  class AdsManagerLoadedEvent {
+    constructor(type) {
+      this.type = type;
+    }
+    getAdsManager() {
+      return manager;
+    }
+    getUserRequestContext() {
+      return {};
+    }
+  }
+  AdsManagerLoadedEvent.Type = {
+    ADS_MANAGER_LOADED: "adsManagerLoaded",
+  };
+
+  class CustomContentLoadedEvent {}
+  CustomContentLoadedEvent.Type = {
+    CUSTOM_CONTENT_LOADED: "deprecated-event",
+  };
+
+  class CompanionAdSelectionSettings {}
+  CompanionAdSelectionSettings.CreativeType = {
+    ALL: "All",
+    FLASH: "Flash",
+    IMAGE: "Image",
+  };
+  CompanionAdSelectionSettings.ResourceType = {
+    ALL: "All",
+    HTML: "Html",
+    IFRAME: "IFrame",
+    STATIC: "Static",
+  };
+  CompanionAdSelectionSettings.SizeCriteria = {
+    IGNORE: "IgnoreSize",
+    SELECT_EXACT_MATCH: "SelectExactMatch",
+    SELECT_NEAR_MATCH: "SelectNearMatch",
+  };
+
+  class AdCuePoints {
+    getCuePoints() {
+      return [];
+    }
+  }
+
+  class AdProgressData {}
+
+  class UniversalAdIdInfo {
+    getAdIdRegistry() {
+      return "";
+    }
+    getAdIsValue() {
+      return "";
+    }
+  }
+
+  Object.assign(ima, {
+    AdCuePoints,
+    AdDisplayContainer,
+    AdError,
+    AdErrorEvent,
+    AdEvent,
+    AdPodInfo,
+    AdProgressData,
+    AdsLoader,
+    AdsManager: manager,
+    AdsManagerLoadedEvent,
+    AdsRenderingSettings,
+    AdsRequest,
+    CompanionAd,
+    CompanionAdSelectionSettings,
+    CustomContentLoadedEvent,
+    gptProxyInstance: {},
+    ImaSdkSettings,
+    OmidAccessMode: {
+      DOMAIN: "domain",
+      FULL: "full",
+      LIMITED: "limited",
+    },
+    settings: new ImaSdkSettings(),
+    UiElements: {
+      AD_ATTRIBUTION: "adAttribution",
+      COUNTDOWN: "countdown",
+    },
+    UniversalAdIdInfo,
+    VERSION,
+    ViewMode: {
+      FULLSCREEN: "fullscreen",
+      NORMAL: "normal",
+    },
+  });
+
+  if (!window.google) {
+    window.google = {};
+  }
+
+  window.google.ima = ima;
+}