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/* eslint-env mozilla/chrome-script */
const { ComponentUtils } = ChromeUtils.importESModule(
"resource://gre/modules/ComponentUtils.sys.mjs"
);
const { Downloads } = ChromeUtils.importESModule(
"resource://gre/modules/Downloads.sys.mjs"
);
let gMIMEService = Cc["@mozilla.org/mime;1"].getService(Ci.nsIMIMEService);
let gHandlerService = Cc["@mozilla.org/uriloader/handler-service;1"].getService(
Ci.nsIHandlerService
);
const HELPERAPP_DIALOG_CONTRACT = "@mozilla.org/helperapplauncherdialog;1";
const HELPERAPP_DIALOG_CID = Components.ID(
Cc[HELPERAPP_DIALOG_CONTRACT].number
);
let tmpDir = Services.dirsvc.get("TmpD", Ci.nsIFile);
tmpDir.append("testsavedir" + Math.floor(Math.random() * 2 ** 32));
// Create this dir if it doesn't exist (ignores existing dirs)
try {
tmpDir.create(Ci.nsIFile.DIRECTORY_TYPE, 0o777, true);
} catch (ex) {
if (ex.result != Cr.NS_ERROR_FILE_ALREADY_EXISTS) {
throw ex;
}
}
Services.prefs.setIntPref("browser.download.folderList", 2);
Services.prefs.setCharPref("browser.download.dir", tmpDir.path);
const FAKE_CID = Services.uuid.generateUUID();
function HelperAppLauncherDialog() {}
HelperAppLauncherDialog.prototype = {
show(aLauncher) {
if (
Services.prefs.getBoolPref(
"browser.download.always_ask_before_handling_new_types"
)
) {
let f = tmpDir.clone();
f.append(aLauncher.suggestedFileName);
aLauncher.saveDestinationAvailable(f);
sendAsyncMessage("suggestedFileName", aLauncher.suggestedFileName);
} else {
sendAsyncMessage("wrongAPICall", "show");
}
aLauncher.cancel(Cr.NS_BINDING_ABORTED);
},
promptForSaveToFileAsync(appLauncher, parent, filename) {
if (
!Services.prefs.getBoolPref(
"browser.download.always_ask_before_handling_new_types"
)
) {
let f = tmpDir.clone();
f.append(filename);
appLauncher.saveDestinationAvailable(f);
sendAsyncMessage("suggestedFileName", filename);
} else {
sendAsyncMessage("wrongAPICall", "promptForSaveToFileAsync");
}
appLauncher.cancel(Cr.NS_BINDING_ABORTED);
},
QueryInterface: ChromeUtils.generateQI(["nsIHelperAppLauncherDialog"]),
};
var registrar = Components.manager.QueryInterface(Ci.nsIComponentRegistrar);
registrar.registerFactory(
FAKE_CID,
"",
HELPERAPP_DIALOG_CONTRACT,
ComponentUtils.generateSingletonFactory(HelperAppLauncherDialog)
);
addMessageListener("unregister", async function () {
registrar.registerFactory(
HELPERAPP_DIALOG_CID,
"",
HELPERAPP_DIALOG_CONTRACT,
null
);
let list = await Downloads.getList(Downloads.ALL);
let downloads = await list.getAll();
for (let dl of downloads) {
await dl.refresh();
if (dl.target.exists || dl.target.partFileExists) {
dump("Finalizing download.\n");
await dl.finalize(true).catch(console.error);
}
}
await list.removeFinished();
dump("Clearing " + tmpDir.path + "\n");
tmpDir.remove(true);
sendAsyncMessage("unregistered");
});