releases-comm-central/mail/components/MessengerContentHandler.sys...

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JavaScript

/* -*- indent-tabs-mode: nil; c-basic-offset: 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/. */
import { AppConstants } from "resource://gre/modules/AppConstants.sys.mjs";
import { MailServices } from "resource:///modules/MailServices.sys.mjs";
const lazy = {};
ChromeUtils.defineESModuleGetters(lazy, {
openLinkExternally: "resource:///modules/LinkHelper.sys.mjs",
FeedUtils: "resource:///modules/FeedUtils.sys.mjs",
MailUtils: "resource:///modules/MailUtils.sys.mjs",
MimeParser: "resource:///modules/mimeParser.sys.mjs",
NetUtil: "resource://gre/modules/NetUtil.sys.mjs",
});
ChromeUtils.defineLazyGetter(lazy, "windowsAlertsService", () => {
// We might not have the Windows alerts service: e.g., on Windows 7 and Windows 8.
if (!("nsIWindowsAlertsService" in Ci)) {
return null;
}
return Cc["@mozilla.org/system-alerts-service;1"]
?.getService(Ci.nsIAlertsService)
?.QueryInterface(Ci.nsIWindowsAlertsService);
});
function resolveURIInternal(aCmdLine, aArgument) {
var uri = aCmdLine.resolveURI(aArgument);
if (!(uri instanceof Ci.nsIFileURL)) {
return uri;
}
try {
if (uri.file.exists()) {
return uri;
}
} catch (e) {
console.error(e);
}
// We have interpreted the argument as a relative file URI, but the file
// doesn't exist. Try URI fixup heuristics: see bug 290782.
try {
uri = Services.uriFixup.getFixupURIInfo(aArgument, 0).preferredURI;
} catch (e) {
console.error(e);
}
return uri;
}
function handleIndexerResult(aFile) {
// Do this here because xpcshell isn't too happy with this at startup
// Make sure the folder tree is initialized
lazy.MailUtils.discoverFolders();
// Use the search integration module to convert the indexer result into a
// message header
const { SearchIntegration } = ChromeUtils.importESModule(
"resource:///modules/SearchIntegration.sys.mjs"
);
const msgHdr = SearchIntegration.handleResult(aFile);
// If we found a message header, open it, otherwise throw an exception
if (msgHdr) {
getOrOpen3PaneWindow().then(() => {
lazy.MailUtils.displayMessage(msgHdr);
});
} else {
throw Components.Exception("", Cr.NS_ERROR_FAILURE);
}
}
async function getOrOpen3PaneWindow() {
let win = Services.wm.getMostRecentWindow("mail:3pane");
if (!win) {
const startupPromise = new Promise(resolve => {
Services.obs.addObserver(
{
observe(subject) {
if (subject == win) {
Services.obs.removeObserver(this, "mail-startup-done");
resolve();
}
},
},
"mail-startup-done"
);
});
// Bug 277798 - we have to pass an argument to openWindow(), or
// else it won't honor the dialog=no instruction.
const argstring = Cc["@mozilla.org/supports-string;1"].createInstance(
Ci.nsISupportsString
);
win = Services.ww.openWindow(
null,
"chrome://messenger/content/messenger.xhtml",
"_blank",
"chrome,dialog=no,all",
argstring
);
await startupPromise;
}
await win.delayedStartupPromise;
return win;
}
/**
* Open the given uri.
* @param {nsIURI} uri - The uri to open.
*/
export function openURI(uri) {
if (
!Cc["@mozilla.org/uriloader/external-protocol-service;1"]
.getService(Ci.nsIExternalProtocolService)
.isExposedProtocol(uri.scheme)
) {
throw Components.Exception(`Can't open: ${uri.spec}`, Cr.NS_ERROR_FAILURE);
}
var channel = Services.io.newChannelFromURI(
uri,
null,
Services.scriptSecurityManager.getSystemPrincipal(),
null,
Ci.nsILoadInfo.SEC_ALLOW_CROSS_ORIGIN_SEC_CONTEXT_IS_NULL,
Ci.nsIContentPolicy.TYPE_OTHER
);
var loader = Cc["@mozilla.org/uriloader;1"].getService(Ci.nsIURILoader);
// We cannot load a URI on startup asynchronously without protecting
// the startup
var loadgroup = Cc["@mozilla.org/network/load-group;1"].createInstance(
Ci.nsILoadGroup
);
var loadlistener = {
onStartRequest() {
Services.startup.enterLastWindowClosingSurvivalArea();
},
onStopRequest() {
Services.startup.exitLastWindowClosingSurvivalArea();
},
QueryInterface: ChromeUtils.generateQI([
"nsIRequestObserver",
"nsISupportsWeakReference",
]),
};
loadgroup.groupObserver = loadlistener;
var listener = {
doContent(ctype, preferred, request) {
var newHandler = Cc[
"@mozilla.org/uriloader/content-handler;1?type=application/x-message-display"
].createInstance(Ci.nsIContentHandler);
newHandler.handleContent("application/x-message-display", this, request);
return true;
},
isPreferred(ctype) {
if (ctype == "message/rfc822") {
return true;
}
return false;
},
canHandleContent() {
return false;
},
loadCookie: null,
parentContentListener: null,
getInterface(iid) {
if (iid.equals(Ci.nsIURIContentListener)) {
return this;
}
if (iid.equals(Ci.nsILoadGroup)) {
return loadgroup;
}
throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
},
};
loader.openURI(channel, true, listener);
}
let isMigration = false;
/**
* Handles command line arguments.
*
* @implements {nsICommandLineHandler}
* @implements {nsICommandLineValidator}
* @implements {nsIContentHandler}
* @implements {nsIFactory}
*/
export class MessengerContentHandler {
QueryInterface = ChromeUtils.generateQI([
"nsICommandLineHandler",
"nsICommandLineValidator",
// "nsIContentHandler", // Don't! FIXME: remove QI and implementation?
"nsIFactory",
]);
/** @see {nsICommandLineHandler} */
handle(cmdLine) {
// Migration is also handled from command line. But differently: the flag
// is already removed by toolkit. We don't want any other windows.
if (isMigration) {
return;
}
if (AppConstants.platform == "win") {
const tag = cmdLine.handleFlagWithParam("notification-windowsTag", false);
if (
tag &&
cmdLine.handleFlagWithParam("notification-windowsAction", false) &&
// Windows itself does disk I/O when the notification service is
// initialized, so make sure that is lazy.
lazy.windowsAlertsService
) {
if (cmdLine.state == Ci.nsICommandLine.STATE_INITIAL_LAUNCH) {
Services.startup.enterLastWindowClosingSurvivalArea();
}
lazy.windowsAlertsService
.handleWindowsTag(tag)
.then(async ({ tagWasHandled }) => {
if (!tagWasHandled) {
// The tag received is associated with a notification created
// during a different session. This shouldn't happen as all
// notifications are removed on close, but just in case...
await getOrOpen3PaneWindow();
}
})
.catch(e =>
console.error(
`Error handling Windows notification with tag '${tag}':`,
e
)
)
.finally(() => {
if (cmdLine.state == Ci.nsICommandLine.STATE_INITIAL_LAUNCH) {
Services.startup.exitLastWindowClosingSurvivalArea();
}
});
return;
}
}
if (
cmdLine.state == Ci.nsICommandLine.STATE_INITIAL_LAUNCH &&
Services.startup.wasSilentlyStarted
) {
// If we are starting up in silent mode, don't open a window. We also need
// to make sure that the application doesn't immediately exit, so stay in
// a LastWindowClosingSurvivalArea until a window opens.
Services.startup.enterLastWindowClosingSurvivalArea();
Services.obs.addObserver(function windowOpenObserver() {
Services.startup.exitLastWindowClosingSurvivalArea();
Services.obs.removeObserver(windowOpenObserver, "domwindowopened");
}, "domwindowopened");
return;
}
try {
var remoteCommand = cmdLine.handleFlagWithParam("remote", true);
} catch (e) {
throw Components.Exception("", Cr.NS_ERROR_ABORT);
}
if (remoteCommand != null) {
try {
var a = /^\s*(\w+)\(([^\)]*)\)\s*$/.exec(remoteCommand);
var remoteVerb = a[1].toLowerCase();
var remoteParams = a[2].split(",");
switch (remoteVerb) {
case "openurl": {
const xuri = cmdLine.resolveURI(remoteParams[0]);
openURI(xuri);
break;
}
case "mailto": {
const xuri = cmdLine.resolveURI("mailto:" + remoteParams[0]);
openURI(xuri);
break;
}
case "xfedocommand":
// xfeDoCommand(openBrowser)
switch (remoteParams[0].toLowerCase()) {
case "openinbox": {
getOrOpen3PaneWindow().then(win => win.focus());
break;
}
case "composemessage": {
const argstring = Cc[
"@mozilla.org/supports-string;1"
].createInstance(Ci.nsISupportsString);
remoteParams.shift();
argstring.data = remoteParams.join(",");
const args = Cc["@mozilla.org/array;1"].createInstance(
Ci.nsIMutableArray
);
args.appendElement(argstring);
args.appendElement(cmdLine);
getOrOpen3PaneWindow().then(win => {
if (!MailServices.accounts.defaultAccount) {
return; // No account yet; can't compose.
}
Services.ww.openWindow(
win,
"chrome://messenger/content/messengercompose/messengercompose.xhtml",
"_blank",
"chrome,dialog=no,all",
args
);
});
break;
}
default:
throw Components.Exception("", Cr.NS_ERROR_ABORT);
}
break;
default:
// Somebody sent us a remote command we don't know how to process:
// just abort.
throw Components.Exception(
`Unrecognized command: ${remoteParams[0]}`,
Cr.NS_ERROR_ABORT
);
}
cmdLine.preventDefault = true;
} catch (e) {
// If we had a -remote flag but failed to process it, throw
// NS_ERROR_ABORT so that the xremote code knows to return a failure
// back to the handling code.
dump(e);
throw Components.Exception("", Cr.NS_ERROR_ABORT);
}
}
var chromeParam = cmdLine.handleFlagWithParam("chrome", false);
if (chromeParam) {
// The parameter specifies the window to open. This code should *not*
// open messenger.xhtml as well.
try {
const argstring = Cc["@mozilla.org/supports-string;1"].createInstance(
Ci.nsISupportsString
);
const _uri = resolveURIInternal(cmdLine, chromeParam);
// only load URIs which do not inherit chrome privs
if (
!Services.io.URIChainHasFlags(
_uri,
Ci.nsIProtocolHandler.URI_INHERITS_SECURITY_CONTEXT
)
) {
Services.ww.openWindow(
null,
_uri.spec,
"_blank",
"chrome,dialog=no,all",
argstring
);
cmdLine.preventDefault = true;
}
} catch (e) {
dump(e);
}
}
if (cmdLine.handleFlag("silent", false)) {
cmdLine.preventDefault = true;
}
// -MapiStartup
// indicates that this startup is due to MAPI. Don't do anything for now.
cmdLine.handleFlag("MapiStartup", false);
if (cmdLine.handleFlag("mail", false)) {
getOrOpen3PaneWindow().then(win => win.focusOnMail(0));
cmdLine.preventDefault = true;
}
if (cmdLine.handleFlag("addressbook", false)) {
getOrOpen3PaneWindow().then(win => win.toAddressBook());
cmdLine.preventDefault = true;
}
if (cmdLine.handleFlag("options", false)) {
getOrOpen3PaneWindow().then(win => win.openPreferencesTab());
cmdLine.preventDefault = true;
}
if (cmdLine.handleFlag("calendar", false)) {
getOrOpen3PaneWindow().then(win => win.toCalendar());
cmdLine.preventDefault = true;
}
if (cmdLine.handleFlag("keymanager", false)) {
getOrOpen3PaneWindow().then(win => win.openKeyManager());
cmdLine.preventDefault = true;
}
if (cmdLine.handleFlag("setDefaultMail", false)) {
var shell = Cc["@mozilla.org/mail/shell-service;1"].getService(
Ci.nsIShellService
);
shell.setDefaultClient(true, Ci.nsIShellService.MAIL);
}
// The URI might be passed as the argument to the file parameter
let uri = cmdLine.handleFlagWithParam("file", false);
// macOS passes `-url mid:<msgid>` into the command line, drop the -url flag.
cmdLine.handleFlag("url", false);
var count = cmdLine.length;
if (count) {
var i = 0;
while (i < count) {
var curarg = cmdLine.getArgument(i);
if (!curarg.startsWith("-")) {
break;
}
dump("Warning: unrecognized command line flag " + curarg + "\n");
// To emulate the pre-nsICommandLine behavior, we ignore the
// argument after an unrecognized flag.
i += 2;
// xxxbsmedberg: make me use the console service!
}
if (i < count) {
uri = cmdLine.getArgument(i);
// mailto: URIs are frequently passed with spaces in them. They should be
// escaped into %20, but we hack around bad clients, see bug 231032
if (uri.startsWith("mailto:")) {
while (++i < count) {
var testarg = cmdLine.getArgument(i);
if (testarg.startsWith("-")) {
break;
}
uri += " " + testarg;
}
}
}
}
if (!uri && cmdLine.preventDefault) {
return;
}
if (!uri && cmdLine.state != Ci.nsICommandLine.STATE_INITIAL_LAUNCH) {
try {
for (const window of Services.wm.getEnumerator("mail:3pane")) {
window.focus();
return;
}
} catch (e) {
dump(e);
}
}
if (uri) {
if (/^file:/i.test(uri)) {
// Turn file URL into a file path so `resolveFile()` will work.
const fileURL = cmdLine.resolveURI(uri);
uri = fileURL.QueryInterface(Ci.nsIFileURL).file.path;
}
// Check for protocols first then look at the file ending.
// Protocols are able to contain file endings like '.ics'.
if (/^https?:/i.test(uri) || /^feed:/i.test(uri)) {
getOrOpen3PaneWindow().then(() => {
lazy.FeedUtils.subscribeToFeed(uri, null);
});
} else if (/^webcals?:\/\//i.test(uri)) {
getOrOpen3PaneWindow().then(win =>
Services.ww.openWindow(
win,
"chrome://calendar/content/calendar-creation.xhtml",
"_blank",
"chrome,titlebar,modal,centerscreen",
Services.io.newURI(uri)
)
);
} else if (/^mid:/i.test(uri)) {
getOrOpen3PaneWindow().then(() => {
lazy.MailUtils.openMessageForMessageId(uri.slice(4));
});
} else if (/^(mailbox|imap|news)-message:\/\//.test(uri)) {
getOrOpen3PaneWindow().then(() => {
const messenger = Cc["@mozilla.org/messenger;1"].createInstance(
Ci.nsIMessenger
);
lazy.MailUtils.displayMessage(messenger.msgHdrFromURI(uri));
});
} else if (/^imap:/i.test(uri)) {
getOrOpen3PaneWindow().then(() => {
openURI(cmdLine.resolveURI(uri));
});
} else if (/^s?news:/i.test(uri)) {
getOrOpen3PaneWindow().then(win => {
lazy.MailUtils.handleNewsUri(uri, win);
});
} else if (
// While the leading web+ and ext+ identifiers may be case insensitive,
// the protocol identifiers must be lowercase.
/^(web|ext)\+[a-z]+:/i.test(uri) &&
/^[a-z]+:/.test(uri.split("+")[1])
) {
getOrOpen3PaneWindow().then(win => {
win.gTabmail.openTab("contentTab", {
url: uri,
linkHandler: "single-site",
// Default to opening protocol-handler tabs in the background, if
// opened via the console. Since this can be triggered externally,
// the user might become distracted, if such a tab suddenly opens and
// steals focus. If really necessary, the protocol implementation
// itself can bring the tab into the foreground.
background: true,
duplicate: true,
});
});
} else if (
uri.toLowerCase().endsWith(".mozeml") ||
uri.toLowerCase().endsWith(".wdseml")
) {
handleIndexerResult(cmdLine.resolveFile(uri));
cmdLine.preventDefault = true;
} else if (uri.toLowerCase().endsWith(".eml")) {
// Open this eml in a new message window
const file = cmdLine.resolveFile(uri);
// No point in trying to open a file if it doesn't exist or is empty
if (file.exists() && file.fileSize > 0) {
// Read this eml and extract its headers to check for X-Unsent.
let fstream = null;
let headers = new Map();
try {
fstream = Cc[
"@mozilla.org/network/file-input-stream;1"
].createInstance(Ci.nsIFileInputStream);
fstream.init(file, -1, 0, 0);
const data = lazy.NetUtil.readInputStreamToString(
fstream,
fstream.available()
);
headers = lazy.MimeParser.extractHeaders(data);
} catch (e) {
// Ignore errors on reading the eml or extracting its headers. The
// test for the X-Unsent header below will fail and the message
// window will take care of any error handling.
} finally {
if (fstream) {
fstream.close();
}
}
// Get the URL for this file
let fileURL = Services.io
.newFileURI(file)
.QueryInterface(Ci.nsIFileURL);
fileURL = fileURL
.mutate()
.setQuery("type=application/x-message-display")
.finalize();
if (headers.get("X-Unsent") == "1") {
getOrOpen3PaneWindow().then(win => {
const msgWindow = Cc[
"@mozilla.org/messenger/msgwindow;1"
].createInstance(Ci.nsIMsgWindow);
MailServices.compose.OpenComposeWindow(
win,
{},
fileURL.spec,
Ci.nsIMsgCompType.Draft,
Ci.nsIMsgCompFormat.Default,
null,
headers.get("from"),
msgWindow
);
});
} else {
getOrOpen3PaneWindow().then(win =>
Services.ww.openWindow(
win,
"chrome://messenger/content/messageWindow.xhtml",
"_blank",
"all,chrome,dialog=no,status,toolbar",
fileURL
)
);
}
cmdLine.preventDefault = true;
} else {
const bundle = Services.strings.createBundle(
"chrome://messenger/locale/messenger.properties"
);
let title, message;
if (!file.exists()) {
title = bundle.GetStringFromName("fileNotFoundTitle");
message = bundle.formatStringFromName("fileNotFoundMsg", [
file.path,
]);
} else {
// The file is empty
title = bundle.GetStringFromName("fileEmptyTitle");
message = bundle.formatStringFromName("fileEmptyMsg", [file.path]);
}
Services.prompt.alert(null, title, message);
}
} else if (uri.toLowerCase().endsWith(".ics")) {
// An .ics calendar file! Open the ics file dialog.
const file = cmdLine.resolveFile(uri);
if (file.exists() && file.fileSize > 0) {
getOrOpen3PaneWindow().then(win => win.toImport("calendar", file));
}
} else if (uri.toLowerCase().endsWith(".vcf")) {
// A VCard! Be smart and open the "add contact" dialog.
const file = cmdLine.resolveFile(uri);
if (file.exists() && file.fileSize > 0) {
const winPromise = getOrOpen3PaneWindow();
const uriSpec = Services.io.newFileURI(file).spec;
lazy.NetUtil.asyncFetch(
{ uri: uriSpec, loadUsingSystemPrincipal: true },
function (inputStream, status) {
if (!Components.isSuccessCode(status)) {
return;
}
let data = lazy.NetUtil.readInputStreamToString(
inputStream,
inputStream.available()
);
// Try to detect the character set and decode. Only UTF-8 is
// valid from vCard 4.0, but we support older versions, so other
// charsets are possible.
const charset = Cc["@mozilla.org/messengercompose/computils;1"]
.createInstance(Ci.nsIMsgCompUtils)
.detectCharset(data);
const buffer = new Uint8Array(
Array.from(data, c => c.charCodeAt(0))
);
data = new TextDecoder(charset).decode(buffer);
winPromise.then(win =>
win.toAddressBook([
"cmd_newCard",
undefined,
decodeURIComponent(data),
])
);
}
);
}
} else {
getOrOpen3PaneWindow().then(win => {
// This must be a regular filename. Use it to create a new message
// with attachment.
const msgParams = Cc[
"@mozilla.org/messengercompose/composeparams;1"
].createInstance(Ci.nsIMsgComposeParams);
const composeFields = Cc[
"@mozilla.org/messengercompose/composefields;1"
].createInstance(Ci.nsIMsgCompFields);
const attachment = Cc[
"@mozilla.org/messengercompose/attachment;1"
].createInstance(Ci.nsIMsgAttachment);
const localFile = Cc["@mozilla.org/file/local;1"].createInstance(
Ci.nsIFile
);
const fileHandler = Services.io
.getProtocolHandler("file")
.QueryInterface(Ci.nsIFileProtocolHandler);
try {
// Unescape the URI so that we work with clients that escape spaces.
localFile.initWithPath(unescape(uri));
attachment.url = fileHandler.getURLSpecFromActualFile(localFile);
composeFields.addAttachment(attachment);
msgParams.type = Ci.nsIMsgCompType.New;
msgParams.format = Ci.nsIMsgCompFormat.Default;
msgParams.composeFields = composeFields;
MailServices.compose.OpenComposeWindowWithParams(win, msgParams);
} catch (e) {
// Let protocol handlers try to take care.
openURI(cmdLine.resolveURI(uri));
}
});
}
} else {
getOrOpen3PaneWindow();
}
}
/** @see {nsICommandLineValidator} */
validate(cmdLine) {
var osintFlagIdx = cmdLine.findFlag("osint", false);
if (osintFlagIdx == -1) {
return;
}
// Other handlers may use osint so only handle the osint flag if the mail
// or compose flag is also present and the command line is valid.
var mailFlagIdx = cmdLine.findFlag("mail", false);
var composeFlagIdx = cmdLine.findFlag("compose", false);
if (mailFlagIdx == -1 && composeFlagIdx == -1) {
return;
}
// If both flags are present use the first flag found so the command line
// length test will fail.
if (mailFlagIdx > -1 && composeFlagIdx > -1) {
var actionFlagIdx =
mailFlagIdx > composeFlagIdx ? composeFlagIdx : mailFlagIdx;
} else {
actionFlagIdx = mailFlagIdx > -1 ? mailFlagIdx : composeFlagIdx;
}
if (actionFlagIdx && osintFlagIdx > -1) {
var param = cmdLine.getArgument(actionFlagIdx + 1);
if (
cmdLine.length != actionFlagIdx + 2 ||
/thunderbird.url.(mailto|news):/.test(param)
) {
throw Components.Exception("", Cr.NS_ERROR_ABORT);
}
cmdLine.handleFlag("osint", false);
}
}
openInExternal(uri) {
lazy.openLinkExternally(uri, { addToHistory: false });
}
/** @see {nsIContentHandler} */
handleContent(aContentType, aWindowContext, aRequest) {
try {
if (
!Cc["@mozilla.org/webnavigation-info;1"]
.getService(Ci.nsIWebNavigationInfo)
.isTypeSupported(aContentType, null)
) {
throw Components.Exception("", Cr.NS_ERROR_WONT_HANDLE_CONTENT);
}
} catch (e) {
throw Components.Exception("", Cr.NS_ERROR_WONT_HANDLE_CONTENT);
}
aRequest.QueryInterface(Ci.nsIChannel);
// For internal protocols (e.g. imap, mailbox, mailto), we want to handle
// them internally as we know what to do. For http and https we don't
// actually deal with external windows very well, so we redirect them to
// the external browser.
if (!aRequest.URI.schemeIs("http") && !aRequest.URI.schemeIs("https")) {
throw Components.Exception("", Cr.NS_ERROR_WONT_HANDLE_CONTENT);
}
this.openInExternal(aRequest.URI);
aRequest.cancel(Cr.NS_BINDING_ABORTED);
}
/** @see {nsICommandLineHandle} */
helpInfo =
" -mail Go to the mail tab.\n" +
" -addressbook Go to the address book tab.\n" +
" -calendar Go to the calendar tab.\n" +
" -options Go to the settings tab.\n" +
" -file Open the specified email file or ICS calendar file.\n" +
" -setDefaultMail Set this app as the default mail client.\n" +
" -keymanager Open the OpenPGP Key Manager.\n";
/** @see {nsIFactory} */
createInstance(iid) {
return this.QueryInterface(iid);
}
}
/*
* @implements {nsIProfileMigrator}
*/
export class MessengerProfileMigrator {
QueryInterface = ChromeUtils.generateQI(["nsIProfileMigrator"]);
/** @see {nsIProfileMigrator} */
migrate() {
isMigration = true;
getOrOpen3PaneWindow().then(win => {
win.toImport();
isMigration = false;
});
}
}
/**
* Open a message/rfc822 or eml file in a new msg window.
*
* @implements {nsIContentHandler}
*/
export class MessageDisplayContentHandler {
QueryInterface = ChromeUtils.generateQI(["nsIContentHandler"]);
handleContent(contentType, windowContext, request) {
const channel = request.QueryInterface(Ci.nsIChannel);
if (!channel) {
throw Components.Exception(
"Expecting an nsIChannel",
Cr.NS_ERROR_ILLEGAL_VALUE
);
}
let uri = channel.URI;
let mailnewsUrl;
try {
mailnewsUrl = uri.QueryInterface(Ci.nsIMsgMailNewsUrl);
} catch (e) {}
if (mailnewsUrl) {
const queryPart = mailnewsUrl.query.replace(
"type=message/rfc822",
"type=application/x-message-display"
);
uri = mailnewsUrl.mutate().setQuery(queryPart).finalize();
} else if (uri.scheme == "file") {
uri = uri
.mutate()
.setQuery("type=application/x-message-display")
.finalize();
}
getOrOpen3PaneWindow().then(win =>
Services.ww.openWindow(
win,
"chrome://messenger/content/messageWindow.xhtml",
"_blank",
"all,chrome,dialog=no,status,toolbar",
uri
)
);
}
}