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experimental webtv viewer patcher on pc_service

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This commit is contained in:
zefie
2022-10-02 08:25:02 -04:00
parent 2bf3bc4d3a
commit c403c589c1
14 changed files with 400 additions and 5 deletions
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368
zefie_wtvp_minisrv/ServiceVault/http_pc/viewergen/index.js Normal file
View File

@@ -0,0 +1,368 @@
var minisrv_service_file = true;
const crypto = require('crypto')
var viewer = 2 // debug override
var viewers = {
0: "WebTVIntel--1.0.exe",
1: "WebTVIntel--1.1.exe",
2: "WebTVIntel--2.5.exe"
}
var viewer_stock_md5s = {
"WebTVIntel--1.0.exe": "d7bde1adbe3549f58dd95425d3ac2af9",
"WebTVIntel--1.1.exe": "ce7b6d1734b5e3d1cbd5f068609223d1",
"WebTVIntel--2.5.exe": "4c5754bb8b69739b6f414c2d159051da"
}
var patch_defaults = {
"start_url": "client:GoToConn",
"default_ip": "10.0.0.1"
}
var patch_limits = {
"start_url": 26,
"default_ip": 11,
}
function getPatchDataType(type, invert = false) {
var patch_data = false;
if ((type == "wtv-incarnation" && !invert) || (type == "wtv-encryption" && invert)) {
patch_data = "wtv-client-serial-number: %s\r\n"
patch_data += "wtv-user-requested-upgrade: %s\r\n";
patch_data += "wtv-system-cpuprid: %s\r\n";
patch_data += "wtv-system-version: %s\r\n";
patch_data += "wtv-capability-flags: %s\r\n";
patch_data += "wtv-client-bootrom-version: %s\r\n";
patch_data += "wtv-need-upgrade: %s\n";
patch_data += "wtv-used-8675309: %s\n";
patch_data += "wtv-client-rom-type: %s\r\n";
patch_data += "wtv-system-chipversion: %s\r\n";
patch_data += "User-Agent: %s\r\n";
}
else if ((type == "wtv-encryption" && !invert) || (type == "wtv-incarnation" && invert) ) {
patch_data = "wtv-tourist-enabled: %s\r\n";
patch_data += "wtv-demo-enabled: %s\r\n";
patch_data += "wtv-default-client-scriptprops: %s\r\n";
patch_data += "wtv-default-client-useragent: %s\r\n";
patch_data += "wtv-system-cpuspeed: %s\r\n";
patch_data += "wtv-system-sysconfig: %s\r\n";
patch_data += "wtv-my-disk-sucks-sucks-sucks: %s\r\n";
patch_data += "wtv-disk-first-error: %s\r\n";
patch_data += "wtv-disk-size: %s\r\n";
patch_data += "wtv-client-address: %s\r\n";
}
return patch_data;
}
function getResData(file) {
var res_data = null;
if (file.substr(-2, 2).toLowerCase() == "gz") {
var res_gz_data = fs.readFileSync(cwd + "/viewers/" + file);
res_data = zlib.gunzipSync(res_gz_data);
} else {
res_data = fs.readFileSync(cwd + "/viewers/" + file);
}
return res_data;
}
var patch_data = {
"WebTVIntel--1.0.exe": {
225: Buffer.from("\xD8", 'ascii'),
273: Buffer.from("\x60", 'ascii'),
332: Buffer.from("\x00\xAA", 'ascii'),
568: Buffer.from("\x00\xA8", 'ascii'),
577: Buffer.from("\xAA", 'ascii'),
624: {
length: 383,
type: "wtv-incarnation"
},
132022: Buffer.from("\x68\xE8\x65\x5D\x00", 'ascii'), // patch pre-register pt1
157861: Buffer.from("\x68\x70\x02\x40\x00", 'ascii'), // Prepare incarnation hack
1016856: Buffer.from("\x68\xCC\x04\x5E\x00", 'ascii'),
1074080: Buffer.from("\x68\xCC\x04\x5E\x00", 'ascii'),
1263129: Buffer.from("\x68\x70\x6C\x5A\x00", 'ascii'), // Prepare encryption hack
1919952: Buffer.from("scriptless-visit-reason\x00", 'ascii'), // patch pre-register pt2
1919976: Buffer.from("10\x00", 'ascii'), // patch pre-register pt3
1728624: {
length: 398,
type: "wtv-encryption"
},
1931552: Buffer.from(patch_defaults.default_ip + "\x00", 'ascii'), // patch default service address
1960460: Buffer.from(patch_defaults.start_url + "\x00", 'ascii'), // patch startup url
1960496: Buffer.from(patch_defaults.start_url + "\x00", 'ascii'), // patch startup url
1967796: Buffer.from("\x00".repeat(41), 'ascii'), // remove unwanted headers
1967856: Buffer.from("\x00".repeat(24), 'ascii'), // remove unwanted headers
2003968: getResData("ResData--1.0.res.gz")
},
"WebTVIntel--1.1.exe": {
209: Buffer.from("\xFA", 'ascii'),
257: Buffer.from("\x90", 'ascii'),
316: Buffer.from("\x00\xB6", 'ascii'),
552: Buffer.from("\x00\xB4", 'ascii'),
561: Buffer.from("\xB6", 'ascii'),
620: {
length: 383,
type: "wtv-incarnation"
},
132118: Buffer.from("\x68\xE4\x75\x5D\x00", 'ascii'), // patch pre-register pt1
157861: Buffer.from("\x68\xCC\x72\x5A\x00", 'ascii'), // Prepare encryption hack
1015384: Buffer.from("\x68\xCC\x14\x5E\x00", 'ascii'),
1073264: Buffer.from("\x68\xCC\x14\x5E\x00", 'ascii'),
1264057: Buffer.from("\x68\x6C\x02\x40\x00", 'ascii'), // Prepare incarnation hack
1730252: {
length: 307,
type: "wtv-encryption"
},
1921484: Buffer.from("scriptless-visit-reason\x00", 'ascii'), // patch pre-register pt2
1921508: Buffer.from("10\x00", 'ascii'), // patch pre-register pt3
1933064: Buffer.from(patch_defaults.default_ip + "\x00", 'ascii'), // patch default service address
1962188: Buffer.from(patch_defaults.start_url + "\x00", 'ascii'), // patch startup url
1962224: Buffer.from(patch_defaults.start_url + "\x00", 'ascii'), // patch startup url
1969540: Buffer.from("\x00".repeat(84), 'ascii'), // remove unwanted headers
2005504: getResData("ResData--1.1.res.gz")
},
"WebTVIntel--2.5.exe": {
396: Buffer.from("\x00\x50", 'ascii'),
720: {
length: 3356,
type: "wtv-encryption"
},
279771: Buffer.from("\x68\xB8\x04\x75\x00", 'ascii'), // patch pre-register pt1
299023: Buffer.from("\x08", 'ascii'), // Change the call location from ecx+16 to ecx+15 to unlock the communication stream
329666: Buffer.from("\x68\x82\x6C\x70\x00", 'ascii'), // Prepare incarnation hack
1893931: Buffer.from("\x71", 'ascii'), // Unlock the wtv- url access from the address bar.
2201731: Buffer.from("\x68\xD0\x02\x40\x00", 'ascii'), // Prepare encryption hack
3173506: {
length: 865,
type: "wtv-incarnation"
},
3473396: Buffer.from("\x00", 'ascii'),
3474616: Buffer.from("10\x00", 'ascii'), // patch pre-register pt3
3746504: Buffer.from(patch_defaults.default_ip + "\x00", 'ascii'), // patch default service address
3474628: Buffer.from("scriptless-visit-reason\x00", 'ascii'), // patch pre-register pt2
3482832: Buffer.from("\x00".repeat(10), 'ascii'), // remove unwanted headers
3808684: Buffer.from(patch_defaults.start_url + "\x00", 'ascii'), // patch startup url
3808720: Buffer.from(patch_defaults.start_url + "\x00", 'ascii'), // patch startup url
3808748: Buffer.from(patch_defaults.start_url + "\x00", 'ascii'), // patch startup url
3826408: Buffer.from("\x00".repeat(66), 'ascii'), // remove unwanted headers
3826356: Buffer.from("\x00".repeat(24), 'ascii'), // remove unwanted headers
3940352: getResData("ResData--2.5.res.gz")
}
}
function getPatchData(fname, client_data_obj, start_url = "client:GoToConn", default_ip = "10.0.0.1") {
var customized_patch_data = patch_data[fname];
Object.keys(customized_patch_data).forEach(function (idx) {
var val = customized_patch_data[idx];
if (typeof val === 'string') {
// start url override
if (start_url != patch_defaults.start_url && start_url.length <= patch_limits.start_url) {
if (val.substr(0, patch_defaults.start_url.length) == patch_defaults.start_url)
customized_patch_data[idx] = start_url + "\x00";
}
// default service ip override
if (default_ip != patch_defaults.default_ip && default_ip.length <= patch_limits.default_ip) {
if (val.substr(0, patch_defaults.default_ip.length) == patch_defaults.default_ip)
customized_patch_data[idx] = default_ip + "\x00";
}
} else {
if (!val.byteLength) {
// not a buffer object
var block_length = val['length'];
var patch_data = getPatchDataType(val['type'], (fname == "WebTVIntel--2.5.exe"));
if (patch_data) {
var patch_data_array = patch_data.split("\r\n");
var patch_data_string = "";
Object.keys(patch_data_array).forEach(function (didx) {
var header_end = patch_data_array[didx].indexOf(":");
if (header_end) {
var patch_data_header = patch_data_array[didx].substr(0, header_end);
var client_value = client_data_obj[patch_data_header];
if (client_value)
patch_data_string += patch_data_array[didx].replace("%s", client_value) + "\r\n";
}
});
}
patch_data_string += val['type'];
var length_difference = block_length - patch_data_string.length;
if (length_difference > 0)
patch_data_string += "\x00".repeat(length_difference);
customized_patch_data[idx] = Buffer.from(patch_data_string, 'ascii');
}
}
})
return customized_patch_data;
}
function patchBinary(patchDataObject) {
Object.keys(patchDataObject.patch_data).forEach(function (idx) {
idx = parseInt(idx);
data_length = patchDataObject.patch_data[idx].byteLength || patchDataObject.patch_data[idx].length
patchDataObject.data.fill(patchDataObject.patch_data[idx], idx, data_length + idx);
})
return patchDataObject.data;
}
if (request_headers.query.viewer &&
request_headers.query.client_ssid) {
var viewer_file = viewers[request_headers.query.viewer];
if (!viewer_file) {
errpage = wtvshared.doErrorPage("500", null, socket.minisrv_pc_mode)
headers = errpage[0];
data = errpage[1];
} else {
var viewer_gz_data = fs.readFileSync(cwd + "/viewers/" + viewer_file + ".gz");
var viewer_data = zlib.gunzipSync(viewer_gz_data);
var viewer_md5 = crypto.createHash('md5').update(viewer_data).digest("hex");
if (viewer_md5 != viewer_stock_md5s[viewer_file]) {
console.log(viewer_file, "md5sum error. expected:", viewer_stock_md5s[viewer_file], ", got:", viewer_md5)
errpage = wtvshared.doErrorPage("500", null, socket.minisrv_pc_mode)
headers = errpage[0];
data = errpage[1];
} else {
var client_data_obj = {
"wtv-client-serial-number": request_headers.query.client_ssid,
"wtv-system-version": 16276,
"wtv-capability-flags": "1fee0e1d9b1ffdef",
"wtv-client-bootrom-version": 2046,
"wtv-client-rom-type": "US-LC2-disk-0MB-8MB",
"wtv-system-chipversion": 53608448,
"User-Agent": "Mozilla/4.0 WebTV/2.8.2 (compatible; MSIE 4.0)",
"wtv-system-cpuspeed": 166164662,
"wtv-system-sysconfig": 3116068,
"wtv-disk-size": 8006
}
var patchDataObject = {
data: viewer_data,
patch_data: getPatchData(viewer_file, client_data_obj)
}
if (!patchDataObject.patch_data) {
errpage = wtvshared.doErrorPage("500", null, socket.minisrv_pc_mode)
headers = errpage[0];
data = errpage[1];
} else {
var patched_file = patchBinary(patchDataObject);
headers = `200 OK
Content-Type: application/octet-stream
Content-Disposition: attachment; filename="${viewer_file.replace(".exe", ".zip")}"`
var AdmZip = require("adm-zip");
var zip = new AdmZip();
zip.addFile(viewer_file, patched_file, "SSID: " + request_headers.query.client_ssid);
if (!request_headers.query.viewer_only) {
var data_zip = new AdmZip(cwd + "/viewers/" + viewer_file.replace(".exe", "").replace("WebTVIntel", "AppData") + ".zip");
var zipEntries = data_zip.getEntries();
zipEntries.forEach(function (zipEntry) {
if (zipEntry.entryName == "Setup.bmp" && request_headers.query.superviewer_logo) {
var logo_gz_data = fs.readFileSync(cwd + "/viewers/SuperViewer_Setup.bmp.gz");
var logo_data = zlib.gunzipSync(logo_gz_data);
zip.addFile(zipEntry.entryName, logo_data);
} else {
zip.addFile(zipEntry.entryName, zipEntry.getData());
}
});
}
data = zip.toBuffer();
}
}
}
} else {
headers = `200 OK
Content-Type: text/html`
data = `<html>
<head>
<title>zefie minisrv v${minisrv_config.version}</title>
<style type="Text/css">
table, td {
border: 1px dotted;
}
td {
padding: 5px;
vertical-align: text-top;
}
</style>
</head>
<script>
function generateSSID() {
var ssidForm = document.getElementById('client_ssid');
var ssid_template = "91xxxY0xx0b002xx";
var ssid = ssid_template;
while (ssid.indexOf("x") != -1) {
ssid = ssid.replace("x",Math.floor(Math.random() * 16).toString(16))
}
ssid = ssid.replace("Y", Math.floor(Math.random() * 7));
ssidForm.value = ssid;
}
function validateForm() {
var ssidForm = document.getElementById('client_ssid');
if (validateSSID(ssidForm.value)) {
var mainForm = document.getElementById('viewergen');
mainForm.submit();
}
}
function validateSSID(ssid) {
if (ssid.length != 16) {
alert("Please choose a valid SSID and try again.");
return false;
}
if ((ssid.substr(0,1) != "0" && ssid.substr(0,1) != "8" && ssid.substr(0,1) != "9") ||
(ssid.substr(6,1) != "0") ||
(ssid.substr(9,5) != "0b002")) {
alert("Your SSID is not proper, but I'll allow it.")
}
return true;
}
</script>
<body bgcolor="#000000" text="#449944">
<p>
Welcome to the zefie minisrv v${minisrv_config.version} PC Services<Br>
<hr>
<form method="GET" id="viewergen">
<table>
<tr>
<td><strong>Viewer Version:</strong></td>
<td>
<select name="viewer">
<option value="0">WebTV Viewer v1.0 Build 146 (w/ B210 ROMs)</option>
<option value="1">WebTV Viewer v1.1 Build 220</option>
<option selected value="2">WebTV Viewer v2.5 Build 117</option>
</td>
</tr>
<tr>
<td><strong>SSID:</strong></td>
<td><input name="client_ssid" id="client_ssid" maxlength=16" value="91">
<input type="button" onclick="generateSSID()" value="Randomize SSID" /><br>
<em>Viewer clients should use SSIDs starting with <strong>91</strong>,<br>
unless you are intentionally trying to spoof a box.</em>
</td>
</tr>
<tr>
<td><strong>Other Flags</strong>:</td>
<td>
<input type="checkbox" name="superviewer_logo" checked="checked"> Replace WebTV Viewer Startup Logo with "SuperViewer 4.0" Logo<br>
<input type="checkbox" name="viewer_only"> Only include Viewer EXE, not ROM files or Logos
</td>
</tr>
<tr>
<tr>
<td colspan="2" style="text-align: right">
<br>
<input type="button" onclick="validateForm()" value="Get Modified WebTV Viewer">
</table>
</form>
</body>
</html>`;
}