1 files changed, 163 insertions, 0 deletions
diff --git a/browser/extensions/report-site-issue/experimentalAPIs/actors/tabExtrasActor.jsm b/browser/extensions/report-site-issue/experimentalAPIs/actors/tabExtrasActor.jsm
new file mode 100644
index 0000000000..52bc6c56c6
--- /dev/null
+++ b/browser/extensions/report-site-issue/experimentalAPIs/actors/tabExtrasActor.jsm
@@ -0,0 +1,163 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* 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/. */
+
+"use strict";
+
+var EXPORTED_SYMBOLS = ["ReportSiteIssueHelperChild"];
+
+const PREVIEW_MAX_ITEMS = 10;
+const LOG_LEVELS = ["debug", "info", "warn", "error"];
+
+function getPreview(value) {
+  switch (typeof value) {
+    case "symbol":
+      return value.toString();
+
+    case "function":
+      return "function ()";
+
+    case "object":
+      if (value === null) {
+        return null;
+      }
+
+      if (Array.isArray(value)) {
+        return `(${value.length})[...]`;
+      }
+
+      return "{...}";
+
+    case "undefined":
+      return "undefined";
+
+    default:
+      try {
+        structuredClone(value);
+      } catch (_) {
+        return `${value}` || "?";
+      }
+
+      return value;
+  }
+}
+
+function getArrayPreview(arr) {
+  const preview = [];
+  let count = 0;
+  for (const value of arr) {
+    if (++count > PREVIEW_MAX_ITEMS) {
+      break;
+    }
+    preview.push(getPreview(value));
+  }
+
+  return preview;
+}
+
+function getObjectPreview(obj) {
+  const preview = {};
+  let count = 0;
+  for (const key of Object.keys(obj)) {
+    if (++count > PREVIEW_MAX_ITEMS) {
+      break;
+    }
+    preview[key] = getPreview(obj[key]);
+  }
+
+  return preview;
+}
+
+function getArgs(value) {
+  if (typeof value === "object" && value !== null) {
+    if (Array.isArray(value)) {
+      return getArrayPreview(value);
+    }
+
+    return getObjectPreview(value);
+  }
+
+  return getPreview(value);
+}
+
+class ReportSiteIssueHelperChild extends JSWindowActorChild {
+  _getConsoleMessages(windowId) {
+    const ConsoleAPIStorage = Cc[
+      "@mozilla.org/consoleAPI-storage;1"
+    ].getService(Ci.nsIConsoleAPIStorage);
+    let messages = ConsoleAPIStorage.getEvents(windowId);
+    return messages.map(evt => {
+      const { columnNumber, filename, level, lineNumber, timeStamp } = evt;
+      const args = evt.arguments.map(getArgs);
+
+      const message = {
+        level,
+        log: args,
+        uri: filename,
+        pos: `${lineNumber}:${columnNumber}`,
+      };
+
+      return { timeStamp, message };
+    });
+  }
+
+  _getScriptErrors(windowId, includePrivate) {
+    const messages = Services.console.getMessageArray();
+    return messages
+      .filter(message => {
+        if (message instanceof Ci.nsIScriptError) {
+          if (!includePrivate && message.isFromPrivateWindow) {
+            return false;
+          }
+
+          if (windowId && windowId !== message.innerWindowID) {
+            return false;
+          }
+
+          return true;
+        }
+
+        // If this is not an nsIScriptError and we need to do window-based
+        // filtering we skip this message.
+        return false;
+      })
+      .map(error => {
+        const {
+          timeStamp,
+          errorMessage,
+          sourceName,
+          lineNumber,
+          columnNumber,
+          logLevel,
+        } = error;
+        const message = {
+          level: LOG_LEVELS[logLevel],
+          log: [errorMessage],
+          uri: sourceName,
+          pos: `${lineNumber}:${columnNumber}`,
+        };
+        return { timeStamp, message };
+      });
+  }
+
+  _getLoggedMessages(includePrivate = false) {
+    const windowId = this.contentWindow.windowGlobalChild.innerWindowId;
+    return this._getConsoleMessages(windowId).concat(
+      this._getScriptErrors(windowId, includePrivate)
+    );
+  }
+
+  receiveMessage(msg) {
+    switch (msg.name) {
+      case "GetLog":
+        return this._getLoggedMessages();
+      case "GetBlockingStatus":
+        const { docShell } = this;
+        return {
+          hasTrackingContentBlocked: docShell.hasTrackingContentBlocked,
+        };
+    }
+    return null;
+  }
+}