firefox-desktop/browser/components/contentanalysis/content/ContentAnalysis.sys.mjs
2025-04-18 20:22:16 +02:00

996 lines
35 KiB
JavaScript

/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* vim: set ts=2 et sw=2 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/. */
// @ts-check
/**
* Contains elements of the Content Analysis UI, which are integrated into
* various browser behaviors (uploading, downloading, printing, etc) that
* require content analysis to be done.
* The content analysis itself is done by the clients of this script, who
* use nsIContentAnalysis to talk to the external CA system.
*/
import { XPCOMUtils } from "resource://gre/modules/XPCOMUtils.sys.mjs";
const lazy = {};
XPCOMUtils.defineLazyServiceGetter(
lazy,
"gContentAnalysis",
"@mozilla.org/contentanalysis;1",
Ci.nsIContentAnalysis
);
ChromeUtils.defineESModuleGetters(lazy, {
clearTimeout: "resource://gre/modules/Timer.sys.mjs",
PanelMultiView: "resource:///modules/PanelMultiView.sys.mjs",
setTimeout: "resource://gre/modules/Timer.sys.mjs",
});
XPCOMUtils.defineLazyPreferenceGetter(
lazy,
"silentNotifications",
"browser.contentanalysis.silent_notifications",
false
);
XPCOMUtils.defineLazyPreferenceGetter(
lazy,
"agentName",
"browser.contentanalysis.agent_name",
"A DLP agent"
);
XPCOMUtils.defineLazyPreferenceGetter(
lazy,
"showBlockedResult",
"browser.contentanalysis.show_blocked_result",
true
);
export const ContentAnalysis = {
_SHOW_NOTIFICATIONS: true,
_SHOW_DIALOGS: false,
_SLOW_DLP_NOTIFICATION_BLOCKING_TIMEOUT_MS: 250,
_SLOW_DLP_NOTIFICATION_NONBLOCKING_TIMEOUT_MS: 3 * 1000,
_RESULT_NOTIFICATION_TIMEOUT_MS: 5 * 60 * 1000, // 5 min
_RESULT_NOTIFICATION_FAST_TIMEOUT_MS: 60 * 1000, // 1 min
PROMPTID_PREFIX: "ContentAnalysisSlowDialog-",
isInitialized: false,
/**
* @typedef {object} NotificationInfo - information about the busy dialog itself that is showing
* @property {*} [close] - Method to close the native notification
* @property {BrowsingContext} [dialogBrowsingContext] - browsing context where the
* confirm() dialog is shown
*/
/**
* @typedef {object} BusyDialogInfo - information about a busy dialog that is either showing or will
* will be shown after a delay.
* @property {string} userActionId - The userActionId of the request
* @property {Set<string>} requestTokenSet - The set of requestTokens associated with the userActionId
* @property {*} [timer] - Result of a setTimeout() call that can be used to cancel the showing of the busy
* dialog if it has not been displayed yet.
* @property {NotificationInfo} [notification] - Information about the busy dialog that is being shown.
*/
/**
* @type {Map<string, BusyDialogInfo>}
*
* Maps string UserActionId to info about the busy dialog.
*/
userActionToBusyDialogMap: new Map(),
/**
* @typedef {object} ResourceNameOrOperationType
* @property {string} [name] - the name of the resource
* @property {number} [operationType] - the type of operation
*/
/**
* @typedef {object} RequestInfo
* @property {CanonicalBrowsingContext} browsingContext - browsing context where the request was sent from
* @property {ResourceNameOrOperationType} resourceNameOrOperationType - name of the operation
*/
/**
* @type {Map<string, RequestInfo>}
*/
requestTokenToRequestInfo: new Map(),
/**
* @type {Set<string>}
*/
warnDialogRequestTokens: new Set(),
/**
* Registers for various messages/events that will indicate the
* need for communicating something to the user.
*
* @param {Window} window - The window to monitor
*/
initialize(window) {
if (!lazy.gContentAnalysis.isActive) {
return;
}
let doc = window.document;
if (!this.isInitialized) {
this.isInitialized = true;
this.initializeDownloadCA();
ChromeUtils.defineLazyGetter(this, "l10n", function () {
return new Localization(
["branding/brand.ftl", "toolkit/contentanalysis/contentanalysis.ftl"],
true
);
});
}
// Do this even if initialized so the icon shows up on new windows, not just the
// first one.
for (let indicator of doc.getElementsByClassName(
"content-analysis-indicator"
)) {
doc.l10n.setAttributes(indicator, "content-analysis-indicator-tooltip", {
agentName: lazy.agentName,
});
}
doc.documentElement.setAttribute("contentanalysisactive", "true");
},
async uninitialize() {
if (this.isInitialized) {
this.isInitialized = false;
this.requestTokenToRequestInfo.clear();
}
},
/**
* Register UI for file download CA events.
*/
async initializeDownloadCA() {
Services.obs.addObserver(this, "dlp-request-made");
Services.obs.addObserver(this, "dlp-response");
Services.obs.addObserver(this, "quit-application");
Services.obs.addObserver(this, "quit-application-granted");
Services.obs.addObserver(this, "quit-application-requested");
},
// nsIObserver
async observe(aSubj, aTopic, _aData) {
switch (aTopic) {
case "quit-application-requested": {
let pendingRequestInfos = this._getAllSlowCARequestInfos();
let requestDescriptions = Array.from(
pendingRequestInfos.flatMap(info =>
info
? [
this._getResourceNameFromNameOrOperationType(
info.resourceNameOrOperationType
),
]
: []
)
);
if (!requestDescriptions.length) {
return;
}
let messageBody = this.l10n.formatValueSync(
"contentanalysis-inprogress-quit-message"
);
messageBody = messageBody + "\n\n";
messageBody += requestDescriptions.join("\n");
let buttonSelected = Services.prompt.confirmEx(
null,
this.l10n.formatValueSync("contentanalysis-inprogress-quit-title"),
messageBody,
Ci.nsIPromptService.BUTTON_POS_0 *
Ci.nsIPromptService.BUTTON_TITLE_IS_STRING +
Ci.nsIPromptService.BUTTON_POS_1 *
Ci.nsIPromptService.BUTTON_TITLE_CANCEL +
Ci.nsIPromptService.BUTTON_POS_0_DEFAULT,
this.l10n.formatValueSync(
"contentanalysis-inprogress-quit-yesbutton"
),
null,
null,
null,
{ value: false }
);
if (buttonSelected === 1) {
// Cancel the quit operation
aSubj.data = true;
} else {
// Ideally we would wait until "quit-application" to cancel outstanding
// DLP requests, but the "DLP busy" or "DLP blocked" dialog can block the
// main thread, thus preventing the "quit-application" from being sent,
// which causes a shutdownhang. (bug 1899703)
lazy.gContentAnalysis.cancelAllRequests(true);
}
break;
}
// Note that we do this in quit-application-granted instead of quit-application
// because otherwise we can get a shutdownhang if WARN dialogs are showing and
// the user quits via keyboard or the hamburger menu (bug 1959966)
case "quit-application-granted": {
// We're quitting, so respond false to all WARN dialogs.
let requestTokensToCancel = this.warnDialogRequestTokens;
// Clear this first so the handler showing the dialog will know not
// to call respondToWarnDialog() again.
this.warnDialogRequestTokens = new Set();
for (let warnDialogRequestToken of requestTokensToCancel) {
lazy.gContentAnalysis.respondToWarnDialog(
warnDialogRequestToken,
false
);
}
break;
}
case "quit-application": {
this.uninitialize();
break;
}
case "dlp-request-made":
{
const request = aSubj.QueryInterface(Ci.nsIContentAnalysisRequest);
if (!request) {
console.error(
"Showing in-browser Content Analysis notification but no request was passed"
);
return;
}
let browsingContext = request.windowGlobalParent?.browsingContext;
if (!browsingContext) {
throw new Error(
"Got dlp-request-made message but couldn't find a browsingContext!"
);
}
// Start timer that, when it expires,
// presents a "slow CA check" message.
let resourceNameOrOperationType =
this._getResourceNameOrOperationTypeFromRequest(request, false);
this.requestTokenToRequestInfo.set(request.requestToken, {
browsingContext,
resourceNameOrOperationType,
});
this._queueSlowCAMessage(
request,
resourceNameOrOperationType,
browsingContext
);
}
break;
case "dlp-response": {
const response = aSubj.QueryInterface(Ci.nsIContentAnalysisResponse);
// Cancels timer or slow message UI,
// if present, and possibly presents the CA verdict.
if (!response) {
throw new Error(
"Got dlp-response message but no response object was passed"
);
}
let windowAndResourceNameOrOperationType =
this.requestTokenToRequestInfo.get(response.requestToken);
if (!windowAndResourceNameOrOperationType) {
// We may get multiple responses, for example, if we are blocked or
// canceled after receiving our verdict because we were part of a
// multipart transaction. Just ignore that.
console.warn(
`Got dlp-response message with unknown token ${response.requestToken} | action: ${response.action}`
);
return;
}
this.requestTokenToRequestInfo.delete(response.requestToken);
this._removeSlowCAMessage(response.userActionId, response.requestToken);
const responseResult =
response?.action ?? Ci.nsIContentAnalysisResponse.eUnspecified;
// Don't show dialog if this is a cached response
if (!response?.isCachedResponse) {
await this._showCAResult(
windowAndResourceNameOrOperationType.resourceNameOrOperationType,
windowAndResourceNameOrOperationType.browsingContext,
response.requestToken,
response.userActionId,
responseResult,
response.isAgentResponse,
response.cancelError
);
}
break;
}
}
},
/**
* Shows the panel that indicates that DLP is active.
*
* @param {Element} element The toolbarbutton the user has clicked on
* @param {*} panelUI Maintains state for the main menu panel
*/
async showPanel(element, panelUI) {
element.ownerDocument.l10n.setAttributes(
lazy.PanelMultiView.getViewNode(
element.ownerDocument,
"content-analysis-panel-description"
),
"content-analysis-panel-text-styled",
{ agentName: lazy.agentName }
);
panelUI.showSubView("content-analysis-panel", element);
},
/**
* Closes a busy dialog
*
* @param {BusyDialogInfo?} caView - the busy dialog to close
*/
_disconnectFromView(caView) {
if (!caView) {
return;
}
if (caView.timer) {
lazy.clearTimeout(caView.timer);
} else if (caView.notification) {
if (caView.notification.close) {
// native notification
caView.notification.close();
} else if (caView.notification.dialogBrowsingContext) {
// in-browser notification
let browser =
caView.notification.dialogBrowsingContext.top.embedderElement;
// browser will be null if the tab was closed
let win = browser?.ownerGlobal;
if (win) {
let dialogBox = win.gBrowser.getTabDialogBox(browser);
// Just close the dialog associated with this CA request.
dialogBox.getTabDialogManager().abortDialogs(dialog => {
return (
dialog.promptID == this.PROMPTID_PREFIX + caView.userActionId
);
});
}
} else {
console.error(
"Unexpected content analysis notification - can't close it!"
);
}
}
},
/**
* Shows either a dialog or native notification or both, depending on the values of
* _SHOW_DIALOGS and _SHOW_NOTIFICATIONS.
*
* @param {string} aMessage - Message to show
* @param {CanonicalBrowsingContext} aBrowsingContext - BrowsingContext to show the dialog in.
* @param {number} aTimeout - timeout for closing the native notification. 0 indicates it is
* not automatically closed.
* @returns {NotificationInfo?} - information about the native notification, if it has been shown.
*/
_showMessage(aMessage, aBrowsingContext, aTimeout = 0) {
if (this._SHOW_DIALOGS) {
Services.prompt.asyncAlert(
aBrowsingContext,
Ci.nsIPrompt.MODAL_TYPE_WINDOW,
this.l10n.formatValueSync("contentanalysis-alert-title"),
aMessage
);
}
if (this._SHOW_NOTIFICATIONS) {
let topWindow =
aBrowsingContext.topChromeWindow ??
aBrowsingContext.embedderWindowGlobal.browsingContext.topChromeWindow;
const notification = new topWindow.Notification(
this.l10n.formatValueSync("contentanalysis-notification-title"),
{ body: aMessage, silent: lazy.silentNotifications }
);
if (aTimeout != 0) {
lazy.setTimeout(() => {
notification.close();
}, aTimeout);
}
return notification;
}
return null;
},
/**
* Whether the notification should block browser interaction.
*
* @param {nsIContentAnalysisRequest.AnalysisType} aAnalysisType The type of DLP analysis being done.
* @returns {boolean}
*/
_shouldShowBlockingNotification(aAnalysisType) {
return !(
aAnalysisType == Ci.nsIContentAnalysisRequest.eFileDownloaded ||
aAnalysisType == Ci.nsIContentAnalysisRequest.ePrint
);
},
/**
* This function also transforms the nameOrOperationType so we won't have to
* look it up again.
*
* @param {ResourceNameOrOperationType} nameOrOperationType
* @returns {string}
*/
_getResourceNameFromNameOrOperationType(nameOrOperationType) {
if (!nameOrOperationType.name) {
let l10nId = undefined;
switch (nameOrOperationType.operationType) {
case Ci.nsIContentAnalysisRequest.eClipboard:
l10nId = "contentanalysis-operationtype-clipboard";
break;
case Ci.nsIContentAnalysisRequest.eDroppedText:
l10nId = "contentanalysis-operationtype-dropped-text";
break;
case Ci.nsIContentAnalysisRequest.eOperationPrint:
l10nId = "contentanalysis-operationtype-print";
break;
}
if (!l10nId) {
console.error(
"Unknown operationTypeForDisplay: " +
nameOrOperationType.operationType
);
return "";
}
nameOrOperationType.name = this.l10n.formatValueSync(l10nId);
}
return nameOrOperationType.name;
},
/**
* Gets a name or operation type from a request
*
* @param {nsIContentAnalysisRequest} aRequest The nsIContentAnalysisRequest
* @param {boolean} aStandalone Whether the message is going to be used on its own
* line. This is used to add more context to the message
* if a file is being uploaded rather than just the name
* of the file.
* @returns {ResourceNameOrOperationType}
*/
_getResourceNameOrOperationTypeFromRequest(aRequest, aStandalone) {
if (
aRequest.operationTypeForDisplay ==
Ci.nsIContentAnalysisRequest.eCustomDisplayString
) {
if (aStandalone) {
return {
name: this.l10n.formatValueSync(
"contentanalysis-customdisplaystring-description",
{ filename: aRequest.operationDisplayString }
),
};
}
return { name: aRequest.operationDisplayString };
}
return { operationType: aRequest.operationTypeForDisplay };
},
/**
* Sets up an "operation is in progress" dialog to be shown after a delay,
* unless one is already showing for this userActionId.
*
* @param {nsIContentAnalysisRequest} aRequest
* @param {ResourceNameOrOperationType} aResourceNameOrOperationType
* @param {CanonicalBrowsingContext} aBrowsingContext
*/
_queueSlowCAMessage(
aRequest,
aResourceNameOrOperationType,
aBrowsingContext
) {
let entry = this.userActionToBusyDialogMap.get(aRequest.userActionId);
if (entry) {
// Don't show busy dialog if another request is already doing so.
entry.requestTokenSet.add(aRequest.requestToken);
return;
}
const analysisType = aRequest.analysisType;
// For operations that block browser interaction, show the "slow content analysis"
// dialog faster
let slowTimeoutMs = this._shouldShowBlockingNotification(analysisType)
? this._SLOW_DLP_NOTIFICATION_BLOCKING_TIMEOUT_MS
: this._SLOW_DLP_NOTIFICATION_NONBLOCKING_TIMEOUT_MS;
entry = {
requestTokenSet: new Set([aRequest.requestToken]),
userActionId: aRequest.userActionId,
};
this.userActionToBusyDialogMap.set(aRequest.userActionId, entry);
entry.timer = lazy.setTimeout(() => {
entry.timer = null;
entry.notification = this._showSlowCAMessage(
analysisType,
aRequest,
this._getSlowDialogMessage(
aResourceNameOrOperationType,
aRequest.userActionRequestsCount
),
aBrowsingContext
);
}, slowTimeoutMs);
},
/**
* Removes the Slow CA message, if it is showing
*
* @param {string} aUserActionId The user action ID to remove
* @param {string} aRequestToken The request token to remove
*/
_removeSlowCAMessage(aUserActionId, aRequestToken) {
let entry = this.userActionToBusyDialogMap.get(aUserActionId);
if (!entry) {
console.error(
`Couldn't find slow dialog for user action ${aUserActionId}`
);
return;
}
if (!entry.requestTokenSet.delete(aRequestToken)) {
console.warn(
`Couldn't find request ${aRequestToken} in slow dialog object for user action ${aUserActionId}. Shutting down?`
);
return;
}
if (entry.requestTokenSet.size) {
// Continue showing the busy dialog since other requests are still pending.
return;
}
this.userActionToBusyDialogMap.delete(aUserActionId);
this._disconnectFromView(entry);
},
/**
* Gets all the requests that are still in progress.
*
* @returns {IteratorObject<RequestInfo>} Information about the requests that are still in progress
*/
_getAllSlowCARequestInfos() {
return this.userActionToBusyDialogMap
.values()
.flatMap(val => val.requestTokenSet)
.map(requestToken => this.requestTokenToRequestInfo.get(requestToken));
},
/**
* Show a message to the user to indicate that a CA request is taking
* a long time.
*
* @param {nsIContentAnalysisRequest.AnalysisType} aOperation The operation
* @param {nsIContentAnalysisRequest} aRequest The request that is taking a long time
* @param {string} aBodyMessage Message to show in the body of the alert
* @param {CanonicalBrowsingContext} aBrowsingContext BrowsingContext to show the alert in
*/
_showSlowCAMessage(aOperation, aRequest, aBodyMessage, aBrowsingContext) {
if (!this._shouldShowBlockingNotification(aOperation)) {
return this._showMessage(aBodyMessage, aBrowsingContext);
}
if (!aRequest) {
throw new Error(
"Showing in-browser Content Analysis notification but no request was passed"
);
}
return this._showSlowCABlockingMessage(
aBrowsingContext,
aRequest.userActionId,
aRequest.requestToken,
aBodyMessage
);
},
/**
* Gets the dialog message to show for the Slow CA dialog.
*
* @param {ResourceNameOrOperationType} aResourceNameOrOperationType
* @param {number} aNumRequests
* @returns {string}
*/
_getSlowDialogMessage(aResourceNameOrOperationType, aNumRequests) {
if (aResourceNameOrOperationType.name) {
let label =
aNumRequests > 1
? "contentanalysis-slow-agent-dialog-body-file-and-more"
: "contentanalysis-slow-agent-dialog-body-file";
return this.l10n.formatValueSync(label, {
agent: lazy.agentName,
filename: aResourceNameOrOperationType.name,
count: aNumRequests - 1,
});
}
let l10nId = undefined;
switch (aResourceNameOrOperationType.operationType) {
case Ci.nsIContentAnalysisRequest.eClipboard:
l10nId = "contentanalysis-slow-agent-dialog-body-clipboard";
break;
case Ci.nsIContentAnalysisRequest.eDroppedText:
l10nId = "contentanalysis-slow-agent-dialog-body-dropped-text";
break;
case Ci.nsIContentAnalysisRequest.eOperationPrint:
l10nId = "contentanalysis-slow-agent-dialog-body-print";
break;
}
if (!l10nId) {
console.error(
"Unknown operationTypeForDisplay: ",
aResourceNameOrOperationType
);
return "";
}
return this.l10n.formatValueSync(l10nId, { agent: lazy.agentName });
},
/**
* Gets the dialog message to show when the request has an error.
*
* @param {ResourceNameOrOperationType} aResourceNameOrOperationType
* @returns {string}
*/
_getErrorDialogMessage(aResourceNameOrOperationType) {
if (aResourceNameOrOperationType.name) {
return this.l10n.formatValueSync(
"contentanalysis-error-message-upload-file",
{ filename: aResourceNameOrOperationType.name }
);
}
let l10nId = undefined;
switch (aResourceNameOrOperationType.operationType) {
case Ci.nsIContentAnalysisRequest.eClipboard:
l10nId = "contentanalysis-error-message-clipboard";
break;
case Ci.nsIContentAnalysisRequest.eDroppedText:
l10nId = "contentanalysis-error-message-dropped-text";
break;
case Ci.nsIContentAnalysisRequest.eOperationPrint:
l10nId = "contentanalysis-error-message-print";
break;
}
if (!l10nId) {
console.error(
"Unknown operationTypeForDisplay: ",
aResourceNameOrOperationType
);
return "";
}
return this.l10n.formatValueSync(l10nId);
},
/**
* Show the Slow CA blocking dialog.
*
* @param {BrowsingContext} aBrowsingContext
* @param {string} aUserActionId
* @param {string} aRequestToken
* @param {string} aBodyMessage
* @returns {NotificationInfo}
*/
_showSlowCABlockingMessage(
aBrowsingContext,
aUserActionId,
aRequestToken,
aBodyMessage
) {
// Note that TabDialogManager maintains a list of displaying dialogs, and so
// we can pop up multiple of these and the first one will keep displaying until
// it is closed, at which point the next one will display, etc.
let promise = Services.prompt.asyncConfirmEx(
aBrowsingContext,
Ci.nsIPromptService.MODAL_TYPE_TAB,
this.l10n.formatValueSync("contentanalysis-slow-agent-dialog-header"),
aBodyMessage,
Ci.nsIPromptService.BUTTON_POS_0 *
Ci.nsIPromptService.BUTTON_TITLE_CANCEL +
Ci.nsIPromptService.BUTTON_POS_1_DEFAULT +
Ci.nsIPromptService.SHOW_SPINNER,
null,
null,
null,
null,
false,
{ promptID: this.PROMPTID_PREFIX + aUserActionId }
);
promise
.catch(() => {
// need a catch clause to avoid an unhandled JS exception
// when we programmatically close the dialog.
// Since this only happens when we are programmatically closing
// the dialog, no need to log the exception.
})
.finally(() => {
// This is also be called if the tab/window is closed while a request is in progress,
// in which case we need to cancel the request.
if (this.requestTokenToRequestInfo.delete(aRequestToken)) {
this._removeSlowCAMessage(aUserActionId, aRequestToken);
lazy.gContentAnalysis.cancelRequestsByRequestToken(aRequestToken);
}
});
return {
dialogBrowsingContext: aBrowsingContext,
};
},
/**
* Show a message to the user to indicate the result of a CA request.
*
* @param {ResourceNameOrOperationType} aResourceNameOrOperationType
* @param {CanonicalBrowsingContext} aBrowsingContext
* @param {string} aRequestToken
* @param {string} aUserActionId
* @param {number} aCAResult
* @param {boolean} aIsAgentResponse
* @param {number} aRequestCancelError
* @returns {Promise<NotificationInfo?>} a notification object (if shown)
*/
async _showCAResult(
aResourceNameOrOperationType,
aBrowsingContext,
aRequestToken,
aUserActionId,
aCAResult,
aIsAgentResponse,
aRequestCancelError
) {
let message = null;
let timeoutMs = 0;
switch (aCAResult) {
case Ci.nsIContentAnalysisResponse.eAllow:
// We don't need to show anything
return null;
case Ci.nsIContentAnalysisResponse.eReportOnly:
message = await this.l10n.formatValue(
"contentanalysis-genericresponse-message",
{
content: this._getResourceNameFromNameOrOperationType(
aResourceNameOrOperationType
),
response: "REPORT_ONLY",
}
);
timeoutMs = this._RESULT_NOTIFICATION_FAST_TIMEOUT_MS;
break;
case Ci.nsIContentAnalysisResponse.eWarn: {
let allow = false;
try {
this.warnDialogRequestTokens.add(aRequestToken);
const result = await Services.prompt.asyncConfirmEx(
aBrowsingContext,
Ci.nsIPromptService.MODAL_TYPE_TAB,
await this.l10n.formatValue("contentanalysis-warndialogtitle"),
await this._warnDialogText(aResourceNameOrOperationType),
Ci.nsIPromptService.BUTTON_POS_0 *
Ci.nsIPromptService.BUTTON_TITLE_IS_STRING +
Ci.nsIPromptService.BUTTON_POS_1 *
Ci.nsIPromptService.BUTTON_TITLE_IS_STRING +
Ci.nsIPromptService.BUTTON_POS_2_DEFAULT,
await this.l10n.formatValue(
"contentanalysis-warndialog-response-allow"
),
await this.l10n.formatValue(
"contentanalysis-warndialog-response-deny"
),
null,
null,
false
);
allow = result.get("buttonNumClicked") === 0;
} catch {
// This can happen if the dialog is closed programmatically, for
// example if the tab is moved to a new window.
// In this case just pretend the user clicked deny, as this
// emulates the behavior of cancelling when
// the request is still active.
allow = false;
}
// Note that the shutdown code in the "quit-application" handler
// may have cleared out warnDialogRequestTokens and responded
// to the request already, so don't call respondToWarnDialog()
// if aRequestToken is not in warnDialogRequestTokens.
if (this.warnDialogRequestTokens.delete(aRequestToken)) {
lazy.gContentAnalysis.respondToWarnDialog(aRequestToken, allow);
}
return null;
}
case Ci.nsIContentAnalysisResponse.eBlock: {
if (aIsAgentResponse && !lazy.showBlockedResult) {
// Don't show anything
return null;
}
let titleId = undefined;
let body = undefined;
if (aResourceNameOrOperationType.name) {
titleId = "contentanalysis-block-dialog-title-upload-file";
body = this.l10n.formatValueSync(
"contentanalysis-block-dialog-body-upload-file",
{ filename: aResourceNameOrOperationType.name }
);
} else {
let bodyId = undefined;
let bodyHasContent = false;
switch (aResourceNameOrOperationType.operationType) {
case Ci.nsIContentAnalysisRequest.eClipboard: {
// Unlike the cases below, this can be shown when the DLP
// agent is not available. We use a different message for that.
const caInfo = await lazy.gContentAnalysis.getDiagnosticInfo();
titleId = "contentanalysis-block-dialog-title-clipboard";
bodyId = caInfo.connectedToAgent
? "contentanalysis-block-dialog-body-clipboard"
: "contentanalysis-no-agent-connected-message-content";
bodyHasContent = true;
break;
}
case Ci.nsIContentAnalysisRequest.eDroppedText:
titleId = "contentanalysis-block-dialog-title-dropped-text";
bodyId = "contentanalysis-block-dialog-body-dropped-text";
break;
case Ci.nsIContentAnalysisRequest.eOperationPrint:
titleId = "contentanalysis-block-dialog-title-print";
bodyId = "contentanalysis-block-dialog-body-print";
break;
}
if (!titleId || !bodyId) {
console.error(
"Unknown operationTypeForDisplay: ",
aResourceNameOrOperationType
);
return null;
}
if (bodyHasContent) {
body = this.l10n.formatValueSync(bodyId, {
agent: lazy.agentName,
content: "",
});
} else {
body = this.l10n.formatValueSync(bodyId);
}
}
let alertBrowsingContext = aBrowsingContext;
if (aBrowsingContext.embedderElement?.getAttribute("printpreview")) {
// If we're in a print preview dialog, things are tricky.
// The window itself is about to close (because of the thrown NS_ERROR_CONTENT_BLOCKED),
// so using an async call would just immediately make the dialog disappear. (bug 1899714)
// Using a blocking version can cause a hang if the window is resizing while
// we show the dialog. (bug 1900798)
// So instead, try to find the browser that this print preview dialog is on top of
// and show the dialog there.
let printPreviewBrowser = aBrowsingContext.embedderElement;
let win = printPreviewBrowser.ownerGlobal;
for (let browser of win.gBrowser.browsers) {
if (
win.PrintUtils.getPreviewBrowser(browser)?.browserId ===
printPreviewBrowser.browserId
) {
alertBrowsingContext = browser.browsingContext;
break;
}
}
}
await Services.prompt.asyncAlert(
alertBrowsingContext,
Ci.nsIPromptService.MODAL_TYPE_TAB,
this.l10n.formatValueSync(titleId),
body
);
return null;
}
case Ci.nsIContentAnalysisResponse.eUnspecified:
message = await this.l10n.formatValue(
"contentanalysis-unspecified-error-message-content",
{
agent: lazy.agentName,
content: this._getErrorDialogMessage(aResourceNameOrOperationType),
}
);
timeoutMs = this._RESULT_NOTIFICATION_TIMEOUT_MS;
break;
case Ci.nsIContentAnalysisResponse.eCanceled:
{
let messageId;
switch (aRequestCancelError) {
case Ci.nsIContentAnalysisResponse.eUserInitiated:
console.error(
"Got unexpected cancel response with eUserInitiated"
);
return null;
case Ci.nsIContentAnalysisResponse.eOtherRequestInGroupCancelled:
return null;
case Ci.nsIContentAnalysisResponse.eNoAgent:
messageId = "contentanalysis-no-agent-connected-message-content";
break;
case Ci.nsIContentAnalysisResponse.eInvalidAgentSignature:
messageId =
"contentanalysis-invalid-agent-signature-message-content";
break;
case Ci.nsIContentAnalysisResponse.eErrorOther:
messageId = "contentanalysis-unspecified-error-message-content";
break;
case Ci.nsIContentAnalysisResponse.eShutdown:
// we're shutting down, no need to show a dialog
return null;
case Ci.nsIContentAnalysisResponse.eTimeout:
// We only show this if the default action was to block.
messageId = "contentanalysis-timeout-block-error-message-content";
break;
default:
console.error(
"Unexpected CA cancelError value: " + aRequestCancelError
);
messageId = "contentanalysis-unspecified-error-message-content";
break;
}
// We got an error with this request, so close any dialogs for any other request
// with the same user action id and also remove their data so we don't show
// any dialogs they might later try to show.
const busyDialogInfo =
this.userActionToBusyDialogMap.get(aUserActionId);
if (busyDialogInfo) {
busyDialogInfo.requestTokenSet.forEach(requestToken => {
this.requestTokenToRequestInfo.delete(requestToken);
this._removeSlowCAMessage(aUserActionId, requestToken);
});
}
message = await this.l10n.formatValue(messageId, {
agent: lazy.agentName,
content: this._getErrorDialogMessage(aResourceNameOrOperationType),
contentName: this._getResourceNameFromNameOrOperationType(
aResourceNameOrOperationType
),
});
timeoutMs = this._RESULT_NOTIFICATION_TIMEOUT_MS;
}
break;
default:
throw new Error("Unexpected CA result value: " + aCAResult);
}
if (!message) {
console.error(
"_showCAResult did not get a message populated for result value " +
aCAResult
);
return null;
}
return this._showMessage(message, aBrowsingContext, timeoutMs);
},
/**
* Returns the correct text for warn dialog contents.
*
* @param {ResourceNameOrOperationType} aResourceNameOrOperationType
*/
async _warnDialogText(aResourceNameOrOperationType) {
const caInfo = await lazy.gContentAnalysis.getDiagnosticInfo();
if (caInfo.connectedToAgent) {
return await this.l10n.formatValue("contentanalysis-warndialogtext", {
content: this._getResourceNameFromNameOrOperationType(
aResourceNameOrOperationType
),
});
}
return await this.l10n.formatValue(
"contentanalysis-no-agent-connected-message-content",
{ agent: lazy.agentName, content: "" }
);
},
};