apk download

gistfile1.js

/* Starts an APK download attempt */
var MarketSession = {
    /**
     * Called when pressing the APK Downloader icon in the location bar.
     */
    download: function(packageName, versionCode, tabId) {
        BrowserStorage.get(["account", "sim"], function(items) {
            if (!items.account || !items.sim) {
                //alert("Please setup your device in the Options page first");
                BrowserTabs.create({
                    url: "options.html"
                });
                return;
            }

            var options = {
                authToken: items.account.authToken,
                isSecure: true,
                sdkVersion: 2009011,
                deviceId: items.account.deviceId,
                deviceAndSdkVersion: "crespo:19",
                locale: "en",
                country: "us",
                operatorAlpha: items.sim.operator,
                simOperatorAlpha: items.sim.operator,
                operatorNumeric: items.sim.operatorCode,
                simOperatorNumeric: items.sim.operatorCode,
                packageName: "v2:" + packageName + (versionCode ? ":1:" + versionCode : "" )
            };
            
            var assetQueryBase64 = MarketSession.generateAssetRequest(options);

            var API_URL = "https://android.clients.google.com/market/api/ApiRequest";
            BrowserCookie.set({
                    url: API_URL,
                    name: "ANDROIDSECURE",
                    value: items.account.authToken,
                }, function() {
                    var postData = {
                        version: 2,
                        request: assetQueryBase64
                    }

                    BrowserApi.post(postData, function(xhr) {
                        if (xhr.status != 200) {
                            BrowserTabs.sendMessage(tabId, {
                                cmd: 'downloadResponse',
                                error: -1
                            });
                            return;
                        }

                        var chars = new Uint8Array(xhr.response);
                        /* gzipped content, try to unpack */
                        var data = BrowserGzip.uncompress(chars);
                        var appUrl, marketDA;

                        var urls = data.match(/https?:\/\/.*?downloadId=[0-9\-\_]+/ig);
                        if (urls && urls.length > 0) {
                            /* not sure if decoding is even necessary */
                            appUrl = decodeURIComponent(urls[0]);

                            /* format: "MarketDA", 0x72 ('r'), length of data, data */
                            if ((marketDA = /MarketDA..(\d+)/.exec(data))) {
                                marketDA = marketDA[1];
                                var filename = packageName + (versionCode ? "-" + versionCode : "") + ".apk";
                                BrowserCookie.set({
                                    url: appUrl,
                                    name: "MarketDA",
                                    value: marketDA
                                }, function() {
                                    BrowserDownloads.download(appUrl, filename);

                                    // expansion files available
                                    if (urls.length > 1) {
                                        for (var i = 1; i < urls.length; i++) {
                                            var url = urls[i],
                                                params = Utils.parseParams(url),
                                                obb = ((url.indexOf("&ft=o") >= 0) ? "main" : "patch") + "." + params.versionCode + "." + params.packageName + ".obb";
                                            BrowserDownloads.download(url, obb);
                                        }
                                    }
                                });
                                return;
                            }
                        } else {
                            BrowserTabs.sendMessage(tabId, {
                                cmd: 'downloadResponse',
                                error: -2
                            });
                        }
                    })
            });
        });
    },
    /**
     * @returns base64 encoded binary data tha

Demo?