Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 465 insertions, 0 deletions

diff --git a/browser/actors/PromptParent.sys.mjs b/browser/actors/PromptParent.sys.mjs
new file mode 100644
index 0000000000..76eca1a66f
--- /dev/null
+++ b/browser/actors/PromptParent.sys.mjs
@@ -0,0 +1,465 @@
+/* vim: set ts=2 sw=2 et tw=80: */
+/* 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/. */
+
+const lazy = {};
+
+ChromeUtils.defineESModuleGetters(lazy, {
+  PromptUtils: "resource://gre/modules/PromptUtils.sys.mjs",
+  BrowserUtils: "resource://gre/modules/BrowserUtils.sys.mjs",
+});
+import { XPCOMUtils } from "resource://gre/modules/XPCOMUtils.sys.mjs";
+
+XPCOMUtils.defineLazyPreferenceGetter(
+  lazy,
+  "tabChromePromptSubDialog",
+  "prompts.tabChromePromptSubDialog",
+  false
+);
+
+XPCOMUtils.defineLazyPreferenceGetter(
+  lazy,
+  "contentPromptSubDialog",
+  "prompts.contentPromptSubDialog",
+  false
+);
+
+XPCOMUtils.defineLazyGetter(lazy, "gTabBrowserLocalization", function () {
+  return new Localization(["browser/tabbrowser.ftl"], true);
+});
+
+/**
+ * @typedef {Object} Prompt
+ * @property {Function} resolver
+ *           The resolve function to be called with the data from the Prompt
+ *           after the user closes it.
+ * @property {Object} tabModalPrompt
+ *           The TabModalPrompt being shown to the user.
+ */
+
+/**
+ * gBrowserPrompts weakly maps BrowsingContexts to a Map of their currently
+ * active Prompts.
+ *
+ * @type {WeakMap<BrowsingContext, Prompt>}
+ */
+let gBrowserPrompts = new WeakMap();
+
+export class PromptParent extends JSWindowActorParent {
+  didDestroy() {
+    // In the event that the subframe or tab crashed, make sure that
+    // we close any active Prompts.
+    this.forceClosePrompts();
+  }
+
+  /**
+   * Registers a new Prompt to be tracked for a particular BrowsingContext.
+   * We need to track a Prompt so that we can, for example, force-close the
+   * TabModalPrompt if the originating subframe or tab unloads or crashes.
+   *
+   * @param {Object} tabModalPrompt
+   *        The TabModalPrompt that will be shown to the user.
+   * @param {string} id
+   *        A unique ID to differentiate multiple Prompts coming from the same
+   *        BrowsingContext.
+   * @return {Promise}
+   * @resolves {Object}
+   *           Resolves with the arguments returned from the TabModalPrompt when it
+   *           is dismissed.
+   */
+  registerPrompt(tabModalPrompt, id) {
+    let prompts = gBrowserPrompts.get(this.browsingContext);
+    if (!prompts) {
+      prompts = new Map();
+      gBrowserPrompts.set(this.browsingContext, prompts);
+    }
+
+    let promise = new Promise(resolve => {
+      prompts.set(id, {
+        tabModalPrompt,
+        resolver: resolve,
+      });
+    });
+
+    return promise;
+  }
+
+  /**
+   * Removes a Prompt for a BrowsingContext with a particular ID from the registry.
+   * This needs to be done to avoid leaking <xul:browser>'s.
+   *
+   * @param {string} id
+   *        A unique ID to differentiate multiple Prompts coming from the same
+   *        BrowsingContext.
+   */
+  unregisterPrompt(id) {
+    let prompts = gBrowserPrompts.get(this.browsingContext);
+    if (prompts) {
+      prompts.delete(id);
+    }
+  }
+
+  /**
+   * Programmatically closes all Prompts for the current BrowsingContext.
+   */
+  forceClosePrompts() {
+    let prompts = gBrowserPrompts.get(this.browsingContext) || [];
+
+    for (let [, prompt] of prompts) {
+      prompt.tabModalPrompt && prompt.tabModalPrompt.abortPrompt();
+    }
+  }
+
+  isAboutAddonsOptionsPage(browsingContext) {
+    const { embedderWindowGlobal, name } = browsingContext;
+    if (!embedderWindowGlobal) {
+      // Return earlier if there is no embedder global, this is definitely
+      // not an about:addons extensions options page.
+      return false;
+    }
+
+    return (
+      embedderWindowGlobal.documentPrincipal.isSystemPrincipal &&
+      embedderWindowGlobal.documentURI.spec === "about:addons" &&
+      name === "addon-inline-options"
+    );
+  }
+
+  receiveMessage(message) {
+    let args = message.data;
+    let id = args._remoteId;
+
+    switch (message.name) {
+      case "Prompt:Open":
+        if (!this.windowContext.isCurrentGlobal) {
+          return undefined;
+        }
+
+        if (
+          (args.modalType === Ci.nsIPrompt.MODAL_TYPE_CONTENT &&
+            !lazy.contentPromptSubDialog) ||
+          (args.modalType === Ci.nsIPrompt.MODAL_TYPE_TAB &&
+            !lazy.tabChromePromptSubDialog) ||
+          this.isAboutAddonsOptionsPage(this.browsingContext)
+        ) {
+          return this.openContentPrompt(args, id);
+        }
+        return this.openPromptWithTabDialogBox(args);
+    }
+
+    return undefined;
+  }
+
+  /**
+   * Opens a TabModalPrompt for a BrowsingContext, and puts the associated browser
+   * in the modal state until the TabModalPrompt is closed.
+   *
+   * @param {Object} args
+   *        The arguments passed up from the BrowsingContext to be passed directly
+   *        to the TabModalPrompt.
+   * @param {string} id
+   *        A unique ID to differentiate multiple Prompts coming from the same
+   *        BrowsingContext.
+   * @return {Promise}
+   *         Resolves when the TabModalPrompt is dismissed.
+   * @resolves {Object}
+   *           The arguments returned from the TabModalPrompt.
+   */
+  openContentPrompt(args, id) {
+    let browser = this.browsingContext.top.embedderElement;
+    if (!browser) {
+      throw new Error("Cannot tab-prompt without a browser!");
+    }
+    let window = browser.ownerGlobal;
+    let tabPrompt = window.gBrowser.getTabModalPromptBox(browser);
+    let newPrompt;
+    let needRemove = false;
+
+    // If the page which called the prompt is different from the the top context
+    // where we show the prompt, ask the prompt implementation to display the origin.
+    // For example, this can happen if a cross origin subframe shows a prompt.
+    args.showCallerOrigin =
+      args.promptPrincipal &&
+      !browser.contentPrincipal.equals(args.promptPrincipal);
+
+    let onPromptClose = () => {
+      let promptData = gBrowserPrompts.get(this.browsingContext);
+      if (!promptData || !promptData.has(id)) {
+        throw new Error(
+          "Failed to close a prompt since it wasn't registered for some reason."
+        );
+      }
+
+      let { resolver, tabModalPrompt } = promptData.get(id);
+      // It's possible that we removed the prompt during the
+      // appendPrompt call below. In that case, newPrompt will be
+      // undefined. We set the needRemove flag to remember to remove
+      // it right after we've finished adding it.
+      if (tabModalPrompt) {
+        tabPrompt.removePrompt(tabModalPrompt);
+      } else {
+        needRemove = true;
+      }
+
+      this.unregisterPrompt(id);
+
+      lazy.PromptUtils.fireDialogEvent(
+        window,
+        "DOMModalDialogClosed",
+        browser,
+        this.getClosingEventDetail(args)
+      );
+      resolver(args);
+      browser.maybeLeaveModalState();
+    };
+
+    try {
+      browser.enterModalState();
+      lazy.PromptUtils.fireDialogEvent(
+        window,
+        "DOMWillOpenModalDialog",
+        browser,
+        this.getOpenEventDetail(args)
+      );
+
+      args.promptActive = true;
+
+      newPrompt = tabPrompt.appendPrompt(args, onPromptClose);
+      let promise = this.registerPrompt(newPrompt, id);
+
+      if (needRemove) {
+        tabPrompt.removePrompt(newPrompt);
+      }
+
+      return promise;
+    } catch (ex) {
+      console.error(ex);
+      onPromptClose(true);
+    }
+
+    return null;
+  }
+
+  /**
+   * Opens either a window prompt or TabDialogBox at the content or tab level
+   * for a BrowsingContext, and puts the associated browser in the modal state
+   * until the prompt is closed.
+   *
+   * @param {Object} args
+   *        The arguments passed up from the BrowsingContext to be passed
+   *        directly to the modal prompt.
+   * @return {Promise}
+   *         Resolves when the modal prompt is dismissed.
+   * @resolves {Object}
+   *           The arguments returned from the modal prompt.
+   */
+  async openPromptWithTabDialogBox(args) {
+    const COMMON_DIALOG = "chrome://global/content/commonDialog.xhtml";
+    const SELECT_DIALOG = "chrome://global/content/selectDialog.xhtml";
+    let uri = args.promptType == "select" ? SELECT_DIALOG : COMMON_DIALOG;
+
+    let browsingContext = this.browsingContext.top;
+
+    let browser = browsingContext.embedderElement;
+    let promptRequiresBrowser =
+      args.modalType === Services.prompt.MODAL_TYPE_TAB ||
+      args.modalType === Services.prompt.MODAL_TYPE_CONTENT;
+    if (promptRequiresBrowser && !browser) {
+      let modal_type =
+        args.modalType === Services.prompt.MODAL_TYPE_TAB ? "tab" : "content";
+      throw new Error(`Cannot ${modal_type}-prompt without a browser!`);
+    }
+
+    let win;
+
+    // If we are a chrome actor we can use the associated chrome win.
+    if (!browsingContext.isContent && browsingContext.window) {
+      win = browsingContext.window;
+    } else {
+      win = browser?.ownerGlobal;
+    }
+
+    // There's a requirement for prompts to be blocked if a window is
+    // passed and that window is hidden (eg, auth prompts are suppressed if the
+    // passed window is the hidden window).
+    // See bug 875157 comment 30 for more..
+    if (win?.winUtils && !win.winUtils.isParentWindowMainWidgetVisible) {
+      throw new Error("Cannot open a prompt in a hidden window");
+    }
+
+    try {
+      if (browser) {
+        browser.enterModalState();
+        lazy.PromptUtils.fireDialogEvent(
+          win,
+          "DOMWillOpenModalDialog",
+          browser,
+          this.getOpenEventDetail(args)
+        );
+      }
+
+      args.promptAborted = false;
+      args.openedWithTabDialog = true;
+
+      // Convert args object to a prop bag for the dialog to consume.
+      let bag;
+
+      if (promptRequiresBrowser && win?.gBrowser?.getTabDialogBox) {
+        // Tab or content level prompt
+        let dialogBox = win.gBrowser.getTabDialogBox(browser);
+
+        if (dialogBox._allowTabFocusByPromptPrincipal) {
+          this.addTabSwitchCheckboxToArgs(dialogBox, args);
+        }
+
+        let currentLocationsTabLabel;
+
+        let targetTab = win.gBrowser.getTabForBrowser(browser);
+        if (
+          !Services.prefs.getBoolPref(
+            "privacy.authPromptSpoofingProtection",
+            false
+          )
+        ) {
+          args.isTopLevelCrossDomainAuth = false;
+        }
+        // Auth prompt spoofing protection, see bug 791594.
+        if (args.isTopLevelCrossDomainAuth && targetTab) {
+          // Set up the url bar with the url of the cross domain resource.
+          // onLocationChange will change the url back to the current browsers
+          // if we do not hold the state here.
+          // onLocationChange will favour currentAuthPromptURI over the current browsers uri
+          browser.currentAuthPromptURI = args.channel.URI;
+          if (browser == win.gBrowser.selectedBrowser) {
+            win.gURLBar.setURI();
+          }
+          // Set up the tab title for the cross domain resource.
+          // We need to remember the original tab title in case
+          // the load does not happen after the prompt, then we need to reset the tab title manually.
+          currentLocationsTabLabel = targetTab.label;
+          win.gBrowser.setTabLabelForAuthPrompts(
+            targetTab,
+            lazy.BrowserUtils.formatURIForDisplay(args.channel.URI)
+          );
+        }
+        bag = lazy.PromptUtils.objectToPropBag(args);
+        try {
+          await dialogBox.open(
+            uri,
+            {
+              features: "resizable=no",
+              modalType: args.modalType,
+              allowFocusCheckbox: args.allowFocusCheckbox,
+              hideContent: args.isTopLevelCrossDomainAuth,
+            },
+            bag
+          ).closedPromise;
+        } finally {
+          if (args.isTopLevelCrossDomainAuth) {
+            browser.currentAuthPromptURI = null;
+            // If the user is stopping the page load before answering the prompt, no navigation will happen after the prompt
+            // so we need to reset the uri and tab title here to the current browsers for that specific case
+            if (browser == win.gBrowser.selectedBrowser) {
+              win.gURLBar.setURI();
+            }
+            win.gBrowser.setTabLabelForAuthPrompts(
+              targetTab,
+              currentLocationsTabLabel
+            );
+          }
+        }
+      } else {
+        // Ensure we set the correct modal type at this point.
+        // If we use window prompts as a fallback it may not be set.
+        args.modalType = Services.prompt.MODAL_TYPE_WINDOW;
+        // Window prompt
+        bag = lazy.PromptUtils.objectToPropBag(args);
+        Services.ww.openWindow(
+          win,
+          uri,
+          "_blank",
+          "centerscreen,chrome,modal,titlebar",
+          bag
+        );
+      }
+
+      lazy.PromptUtils.propBagToObject(bag, args);
+    } finally {
+      if (browser) {
+        browser.maybeLeaveModalState();
+        lazy.PromptUtils.fireDialogEvent(
+          win,
+          "DOMModalDialogClosed",
+          browser,
+          this.getClosingEventDetail(args)
+        );
+      }
+    }
+    return args;
+  }
+
+  getClosingEventDetail(args) {
+    let details =
+      args.modalType === Services.prompt.MODAL_TYPE_CONTENT
+        ? {
+            wasPermitUnload: args.inPermitUnload,
+            areLeaving: args.ok,
+          }
+        : null;
+
+    return details;
+  }
+
+  getOpenEventDetail(args) {
+    let details =
+      args.modalType === Services.prompt.MODAL_TYPE_CONTENT
+        ? {
+            inPermitUnload: args.inPermitUnload,
+            promptPrincipal: args.promptPrincipal,
+            tabPrompt: true,
+          }
+        : null;
+
+    return details;
+  }
+
+  /**
+   * Set properties on `args` needed by the dialog to allow tab switching for the
+   * page that opened the prompt.
+   *
+   * @param {TabDialogBox}  dialogBox
+   *        The dialog to show the tab-switch checkbox for.
+   * @param {Object}  args
+   *        The `args` object to set tab switching permission info on.
+   */
+  addTabSwitchCheckboxToArgs(dialogBox, args) {
+    let allowTabFocusByPromptPrincipal =
+      dialogBox._allowTabFocusByPromptPrincipal;
+
+    if (
+      allowTabFocusByPromptPrincipal &&
+      args.modalType === Services.prompt.MODAL_TYPE_CONTENT
+    ) {
+      let domain = allowTabFocusByPromptPrincipal.addonPolicy?.name;
+      try {
+        domain ||= allowTabFocusByPromptPrincipal.URI.displayHostPort;
+      } catch (ex) {
+        /* Ignore exceptions from fetching the display host/port. */
+      }
+      // If it's still empty, use `prePath` so we have *something* to show:
+      domain ||= allowTabFocusByPromptPrincipal.URI.prePath;
+      let [allowFocusMsg] = lazy.gTabBrowserLocalization.formatMessagesSync([
+        {
+          id: "tabbrowser-allow-dialogs-to-get-focus",
+          args: { domain },
+        },
+      ]);
+      let labelAttr = allowFocusMsg.attributes.find(a => a.name == "label");
+      if (labelAttr) {
+        args.allowFocusCheckbox = true;
+        args.checkLabel = labelAttr.value;
+      }
+    }
+  }
+}