MeshCentral/amtscript.js
2021-01-09 14:31:09 -08:00

478 lines
26 KiB
JavaScript

/**
* @fileoverview Script Compiler / Decompiler / Runner
* @author Ylian Saint-Hilaire
* @copyright Intel Corporation 2018-2021
* @license Apache-2.0
* @version v0.1.0e
*/
/*jslint node: true */
/*jshint node: true */
/*jshint strict:false */
/*jshint -W097 */
/*jshint esversion: 6 */
"use strict";
module.exports.CreateAmtScriptEngine = function () {
var o = {};
// Core functions
const script_functionTable1 = ['nop', 'jump', 'set', 'print', 'dialog', 'getitem', 'substr', 'indexof', 'split', 'join', 'length', 'jsonparse', 'jsonstr', 'add', 'substract', 'parseint', 'wsbatchenum', 'wsput', 'wscreate', 'wsdelete', 'wsexec', 'scriptspeed', 'wssubscribe', 'wsunsubscribe', 'readchar', 'signwithdummyca'];
// functions of type ARG1 = func(ARG2, ARG3, ARG4, ARG5, ARG6)
const script_functionTable2 = ['encodeuri', 'decodeuri', 'passwordcheck', 'atob', 'btoa', 'hex2str', 'str2hex', 'random', 'md5', 'maketoarray', 'readshort', 'readshortx', 'readint', 'readsint', 'readintx', 'shorttostr', 'shorttostrx', 'inttostr', 'inttostrx'];
// functions of type ARG1 = func(ARG2, ARG3, ARG4, ARG5, ARG6)
//script_functionTableX2 = [encodeURI, decodeURI, passwordcheck, window.atob.bind(window), window.btoa.bind(window), hex2rstr, rstr2hex, random, rstr_md5, MakeToArray, ReadShort, ReadShortX, ReadInt, ReadSInt, ReadIntX, ShortToStr, ShortToStrX, IntToStr, IntToStrX];
// Optional functions of type ARG1 = func(ARG2, ARG3, ARG4, ARG5, ARG6)
const script_functionTable3 = ['pullsystemstatus', 'pulleventlog', 'pullauditlog', 'pullcertificates', 'pullwatchdog', 'pullsystemdefense', 'pullhardware', 'pulluserinfo', 'pullremoteaccess', 'highlightblock', 'disconnect', 'getsidstring', 'getsidbytearray'];
/*
// Optional functions of type ARG1 = func(ARG2, ARG3, ARG4, ARG5, ARG6)
script_functionTableX3 = [
PullSystemStatus
,
// ###BEGIN###{EventLog}
PullEventLog
// ###END###{EventLog}
,
// ###BEGIN###{AuditLog}
PullAuditLog
// ###END###{AuditLog}
,
// ###BEGIN###{Certificates}
PullCertificates
// ###END###{Certificates}
,
// ###BEGIN###{AgentPresence}
PullWatchdog
// ###END###{AgentPresence}
,
// ###BEGIN###{SystemDefense}
PullSystemDefense
// ###END###{SystemDefense}
,
// ###BEGIN###{HardwareInfo}
PullHardware
// ###END###{HardwareInfo}
,
PullUserInfo
,
// ###BEGIN###{RemoteAccess}
PullRemoteAccess
// ###END###{RemoteAccess}
,
// ###BEGIN###{Scripting-Editor}
script_HighlightBlock
// ###END###{Scripting-Editor}
,
// ###BEGIN###{ComputerSelector}
disconnect
// ###END###{ComputerSelector}
,
function (runner, x) { return GetSidString(x); }
,
function (runner, x) { return GetSidByteArray(x); }
];
// Setup the script state
o.script_setup = function(binary, startvars) {
var obj = { startvars: startvars };
if (binary.length < 6) { console.error('Invalid script length'); return null; } // Script must have at least 6 byte header
if (ReadInt(binary, 0) != 0x247D2945) { console.error('Invalid binary script'); return null; } // Check the script magic header
if (ReadShort(binary, 4) > 1) { console.error('Unsupported script version'); return null; } // Check the script version
obj.script = binary.substring(6);
// obj.onStep;
// obj.onConsole;
// Reset the script to the start
obj.reset = function (stepspeed) {
obj.stop();
obj.ip = 0;
obj.variables = startvars;
obj.state = 1;
}
// Start the script
obj.start = function (stepspeed) {
obj.stop();
obj.stepspeed = stepspeed;
if (stepspeed > 0) { obj.timer = setInterval(function () { obj.step() }, stepspeed); }
}
// Stop the script
obj.stop = function () {
if (obj.timer != null) { clearInterval(obj.timer); }
obj.timer = null;
obj.stepspeed = 0;
}
// function used to load and store variable values
obj.getVar = function (name) { if (name == undefined) return undefined; return obj.getVarEx(name.split('.'), obj.variables); }
obj.getVarEx = function (name, val) { try { if (name == undefined) return undefined; if (name.length == 0) return val; return obj.getVarEx(name.slice(1), val[name[0]]); } catch (e) { return null; } }
obj.setVar = function (name, val) { obj.setVarEx(name.split('.'), obj.variables, val); }
obj.setVarEx = function (name, vars, val) { if (name.length == 1) { vars[name[0]] = val; } else { obj.setVarEx(name.slice(1), vars[name[0]], val); } }
// Run the script one step forward
obj.step = function () {
if (obj.state != 1) return;
if (obj.ip < obj.script.length) {
var cmdid = ReadShort(obj.script, obj.ip);
var cmdlen = ReadShort(obj.script, obj.ip + 2);
var argcount = ReadShort(obj.script, obj.ip + 4);
var argptr = obj.ip + 6;
var args = [];
// Clear all temp variables (This is optional)
for (var i in obj.variables) { if (i.startsWith('__')) { delete obj.variables[i]; } }
// Loop on each argument, moving forward by the argument length each time
for (var i = 0; i < argcount; i++) {
var arglen = ReadShort(obj.script, argptr);
var argval = obj.script.substring(argptr + 2, argptr + 2 + arglen);
var argtyp = argval.charCodeAt(0);
argval = argval.substring(1);
if (argtyp < 2) {
// Get the value and replace all {var} with variable values
while (argval.split("{").length > 1) { var t = argval.split("{").pop().split("}").shift(); argval = argval.replace('{' + t + '}', obj.getVar(t)); }
if (argtyp == 1) { obj.variables['__' + i] = decodeURI(argval); argval = '__' + i; } // If argtyp is 1, this is a literal. Store in temp variable.
args.push(argval);
}
if (argtyp == 2 || argtyp == 3) {
obj.variables['__' + i] = ReadSInt(argval, 0);
args.push('__' + i);
}
argptr += (2 + arglen);
}
// Move instruction pointer forward by command size
obj.ip += cmdlen;
// Get all variable values
var argsval = [];
for (var i = 0; i < 10; i++) { argsval.push(obj.getVar(args[i])); }
var storeInArg0;
try {
if (cmdid < 10000) {
// Lets run the actual command
switch (cmdid) {
case 0: // nop
break;
case 1: // jump(label) or jump(label, a, compare, b)
if (argsval[2]) {
if (
(argsval[2] == '<' && argsval[1] < argsval[3]) ||
(argsval[2] == '<=' && argsval[1] <= argsval[3]) ||
(argsval[2] == '!=' && argsval[1] != argsval[3]) ||
(argsval[2] == '=' && argsval[1] == argsval[3]) ||
(argsval[2] == '>=' && argsval[1] >= argsval[3]) ||
(argsval[2] == '>' && argsval[1] > argsval[3])
) { obj.ip = argsval[0]; }
} else {
obj.ip = argsval[0]; // Set the instruction pointer to the new location in the script
}
break;
case 2: // set(variable, value)
if (args[1] == undefined) delete obj.variables[args[0]]; else obj.setVar(args[0], argsval[1]);
break;
case 3: // print(message)
if (obj.onConsole) { obj.onConsole(obj.toString(argsval[0]), obj); } else { console.log(obj.toString(argsval[0])); }
// Q(obj.consoleid).value += () + '\n'); Q(obj.console).scrollTop = Q(obj.console).scrollHeight;
break;
case 4: // dialog(title, content, buttons)
obj.state = 2;
obj.dialog = true;
setDialogMode(11, argsval[0], argsval[2], obj.xxStepDialogOk, argsval[1], obj);
break;
case 5: // getitem(a, b, c)
for (var i in argsval[1]) { if (argsval[1][i][argsval[2]] == argsval[3]) { storeInArg0 = i; } };
break;
case 6: // substr(variable_dest, variable_src, index, len)
storeInArg0 = argsval[1].substr(argsval[2], argsval[3]);
break;
case 7: // indexOf(variable_dest, variable_src, index, len)
storeInArg0 = argsval[1].indexOf(argsval[2]);
break;
case 8: // split(variable_dest, variable_src, separator)
storeInArg0 = argsval[1].split(argsval[2]);
break;
case 9: // join(variable_dest, variable_src, separator)
storeInArg0 = argsval[1].join(argsval[2]);
break;
case 10: // length(variable_dest, variable_src)
storeInArg0 = argsval[1].length;
break;
case 11: // jsonparse(variable_dest, json)
storeInArg0 = JSON.parse(argsval[1]);
break;
case 12: // jsonstr(variable_dest, variable_src)
storeInArg0 = JSON.stringify(argsval[1]);
break;
case 13: // add(variable_dest, variable_src, value)
storeInArg0 = (argsval[1] + argsval[2]);
break;
case 14: // substract(variable_dest, variable_src, value)
storeInArg0 = (argsval[1] - argsval[2]);
break;
case 15: // parseInt(variable_dest, variable_src)
storeInArg0 = parseInt(argsval[1]);
break;
case 16: // wsbatchenum(name, objectList)
obj.state = 2;
obj.amtstack.BatchEnum(argsval[0], argsval[1], obj.xxWsmanReturn, obj);
break;
case 17: // wsput(name, args)
obj.state = 2;
obj.amtstack.Put(argsval[0], argsval[1], obj.xxWsmanReturn, obj);
break;
case 18: // wscreate(name, args)
obj.state = 2;
obj.amtstack.Create(argsval[0], argsval[1], obj.xxWsmanReturn, obj);
break;
case 19: // wsdelete(name, args)
obj.state = 2;
obj.amtstack.Delete(argsval[0], argsval[1], obj.xxWsmanReturn, obj);
break;
case 20: // wsexec(name, method, args, selectors)
obj.state = 2;
obj.amtstack.Exec(argsval[0], argsval[1], argsval[2], obj.xxWsmanReturn, obj, 0, argsval[3]);
break;
case 21: // Script Speed
obj.stepspeed = argsval[0];
if (obj.timer != null) { clearInterval(obj.timer); obj.timer = setInterval(function () { obj.step() }, obj.stepspeed); }
break;
case 22: // wssubscribe(name, delivery, url, selectors, opaque, user, pass)
obj.state = 2;
obj.amtstack.Subscribe(argsval[0], argsval[1], argsval[2], obj.xxWsmanReturn, obj, 0, argsval[3], argsval[4], argsval[5], argsval[6]);
break;
case 23: // wsunsubscribe(name, selectors)
obj.state = 2;
obj.amtstack.UnSubscribe(argsval[0], obj.xxWsmanReturn, obj, 0, argsval[1]);
break;
case 24: // readchar(str, pos)
console.log(argsval[1], argsval[2], argsval[1].charCodeAt(argsval[2]));
storeInArg0 = argsval[1].charCodeAt(argsval[2]);
break;
case 25: // signWithDummyCa
// ###BEGIN###{Certificates}
obj.state = 2;
// DERKey, xxCaPrivateKey, certattributes, issuerattributes
amtcert_signWithCaKey(argsval[0], null, argsval[1], { 'CN': 'Untrusted Root Certificate' }, obj.xxSignWithDummyCaReturn);
// ###END###{Certificates}
break;
default: {
obj.state = 9;
console.error("Script Error, unknown command: " + cmdid);
}
}
} else {
if (cmdid < 20000) {
// functions of type ARG1 = func(ARG2, ARG3, ARG4, ARG5, ARG6)
storeInArg0 = script_functionTableX2[cmdid - 10000](argsval[1], argsval[2], argsval[3], argsval[4], argsval[5], argsval[6]);
} else {
// Optional functions of type ARG1 = func(ARG2, ARG3, ARG4, ARG5, ARG6)
if (script_functionTableX3 && script_functionTableX3[cmdid - 20000]) {
storeInArg0 = script_functionTableX3[cmdid - 20000](obj, argsval[1], argsval[2], argsval[3], argsval[4], argsval[5], argsval[6]); // Note that optional calls start with "obj" as first argument.
}
}
}
if (storeInArg0 != undefined) obj.setVar(args[0], storeInArg0);
} catch (e) {
if (typeof e == 'object') { e = e.message; }
obj.setVar('_exception', e);
}
}
if (obj.state == 1 && obj.ip >= obj.script.length) { obj.state = 0; obj.stop(); }
if (obj.onStep) obj.onStep(obj);
return obj;
};
obj.xxStepDialogOk = function (button) {
obj.variables['DialogSelect'] = button;
obj.state = 1;
obj.dialog = false;
if (obj.onStep) obj.onStep(obj);
};
// ###BEGIN###{**ClosureAdvancedMode}
obj.xxWsmanReturnFix = function (x) {
if (!x || x == null) return;
if (x.Header) { x['Header'] = x.Header; delete x.Header; }
if (x.Body) { x['Body'] = x.Body; delete x.Body; }
if (x.Responses) { x['Responses'] = x.Responses; delete x.Responses; }
if (x.Response) { x['Response'] = x.Response; delete x.Response; }
if (x.ReturnValueStr) { x['ReturnValueStr'] = x.ReturnValueStr; delete x.ReturnValueStr; }
};
// ###END###{**ClosureAdvancedMode}
obj.xxWsmanReturn = function (stack, name, responses, status) {
// ###BEGIN###{**ClosureAdvancedMode}
// This is required when Google Closure is used
if (responses) {
obj.xxWsmanReturnFix(responses);
for (var i in responses) {
obj.xxWsmanReturnFix(responses[i]);
for (var j in responses[i]) { obj.xxWsmanReturnFix(responses[i][j]); }
}
}
// ###END###{**ClosureAdvancedMode}
obj.setVar(name, responses);
obj.setVar('wsman_result', status);
obj.setVar('wsman_result_str', ((httpErrorTable[status]) ? (httpErrorTable[status]) : ('Error #' + status)));
obj.state = 1;
if (obj.onStep) obj.onStep(obj);
};
// ###BEGIN###{Certificates}
obj.xxSignWithDummyCaReturn = function (cert) {
obj.setVar('signed_cert', btoa(_arrayBufferToString(cert)));
obj.state = 1;
if (obj.onStep) obj.onStep(obj);
};
// ###END###{Certificates}
obj.toString = function (x) { if (typeof x == 'object') return JSON.stringify(x); return x; };
obj.reset();
return obj;
}
*/
var ReadShort = function (v, p) { return (v.charCodeAt(p) << 8) + v.charCodeAt(p + 1); };
var ReadShortX = function (v, p) { return (v.charCodeAt(p + 1) << 8) + v.charCodeAt(p); };
var ReadInt = function (v, p) { return (v.charCodeAt(p) * 0x1000000) + (v.charCodeAt(p + 1) << 16) + (v.charCodeAt(p + 2) << 8) + v.charCodeAt(p + 3); }; // We use "*0x1000000" instead of "<<24" because the shift converts the number to signed int32.
var ReadIntX = function (v, p) { return (v.charCodeAt(p + 3) * 0x1000000) + (v.charCodeAt(p + 2) << 16) + (v.charCodeAt(p + 1) << 8) + v.charCodeAt(p); };
var ShortToStr = function (v) { return String.fromCharCode((v >> 8) & 0xFF, v & 0xFF); };
var ShortToStrX = function (v) { return String.fromCharCode(v & 0xFF, (v >> 8) & 0xFF); };
var IntToStr = function (v) { return String.fromCharCode((v >> 24) & 0xFF, (v >> 16) & 0xFF, (v >> 8) & 0xFF, v & 0xFF); };
var IntToStrX = function (v) { return String.fromCharCode(v & 0xFF, (v >> 8) & 0xFF, (v >> 16) & 0xFF, (v >> 24) & 0xFF); };
// Argument types: 0 = Variable, 1 = String, 2 = Integer, 3 = Label
o.script_compile = function (script, onmsg) {
var r = '', scriptlines = script.split('\n'), labels = {}, labelswap = [], swaps = [];
// Go thru each script line and encode it
for (var i in scriptlines) {
var scriptline = scriptlines[i];
if (scriptline.startsWith('##SWAP ')) { var x = scriptline.split(' '); if (x.length == 3) { swaps[x[1]] = x[2]; } } // Add a swap instance
if (scriptline[0] == '#' || scriptline.length == 0) continue; // Skip comments & blank lines
for (var x in swaps) { scriptline = scriptline.split(x).join(swaps[x]); } // Apply all swaps
var keywords = scriptline.match(/"[^"]*"|[^\s"]+/g);
if ((keywords == null) || (keywords.length == 0)) continue; // Skip blank lines
if (scriptline[0] == ':') { labels[keywords[0].toUpperCase()] = r.length; continue; } // Mark a label position
var funcIndex = script_functionTable1.indexOf(keywords[0].toLowerCase());
if (funcIndex == -1) { funcIndex = script_functionTable2.indexOf(keywords[0].toLowerCase()); if (funcIndex >= 0) funcIndex += 10000; }
if (funcIndex == -1) { funcIndex = script_functionTable3.indexOf(keywords[0].toLowerCase()); if (funcIndex >= 0) funcIndex += 20000; } // Optional methods
if (funcIndex == -1) { if (onmsg) { onmsg("Unabled to compile, unknown command: " + keywords[0]); } return ''; }
// Encode CommandId, CmdSize, ArgCount, Arg1Len, Arg1, Arg2Len, Arg2...
var cmd = ShortToStr(keywords.length - 1);
for (var j in keywords) {
if (j == 0) continue;
if (keywords[j][0] == ':') {
labelswap.push([keywords[j], r.length + cmd.length + 7]); // Add a label swap
cmd += ShortToStr(5) + String.fromCharCode(3) + IntToStr(0xFFFFFFFF); // Put an empty label
} else {
var argint = parseInt(keywords[j]);
if (argint == keywords[j]) {
cmd += ShortToStr(5) + String.fromCharCode(2) + IntToStr(argint);
} else {
if (keywords[j][0] == '"' && keywords[j][keywords[j].length - 1] == '"') {
cmd += ShortToStr(keywords[j].length - 1) + String.fromCharCode(1) + keywords[j].substring(1, keywords[j].length - 1);
} else {
cmd += ShortToStr(keywords[j].length + 1) + String.fromCharCode(0) + keywords[j];
}
}
}
}
cmd = ShortToStr(funcIndex) + ShortToStr(cmd.length + 4) + cmd;
r += cmd;
}
// Perform all the needed label swaps
for (i in labelswap) {
var label = labelswap[i][0].toUpperCase(), position = labelswap[i][1], target = labels[label];
if (target == undefined) { if (onmsg) { onmsg("Unabled to compile, unknown label: " + label); } return ''; }
r = r.substr(0, position) + IntToStr(target) + r.substr(position + 4);
}
return IntToStr(0x247D2945) + ShortToStr(1) + r;
};
// Decompile the script, intended for debugging only
o.script_decompile = function (binary, onecmd) {
var r = '', ptr = 6, labels = {};
if (onecmd >= 0) {
ptr = onecmd; // If we are decompiling just one command, set the ptr to that command.
} else {
if (binary.length < 6) { return '# Invalid script length'; }
var magic = ReadInt(binary, 0);
var version = ReadShort(binary, 4);
if (magic != 0x247D2945) { return '# Invalid binary script: ' + magic; }
if (version != 1) { return '# Invalid script version'; }
}
// Loop on each command, moving forward by the command length each time.
while (ptr < binary.length) {
var cmdid = ReadShort(binary, ptr);
var cmdlen = ReadShort(binary, ptr + 2);
var argcount = ReadShort(binary, ptr + 4);
var argptr = ptr + 6;
var argstr = '';
if (!(onecmd >= 0)) { r += ":label" + (ptr - 6) + "\n"; }
// Loop on each argument, moving forward by the argument length each time
for (var i = 0; i < argcount; i++) {
var arglen = ReadShort(binary, argptr);
var argval = binary.substring(argptr + 2, argptr + 2 + arglen);
var argtyp = argval.charCodeAt(0);
if (argtyp == 0) { argstr += ' ' + argval.substring(1); } // Variable
else if (argtyp == 1) { argstr += ' \"' + argval.substring(1) + '\"'; } // String
else if (argtyp == 2) { argstr += ' ' + ReadInt(argval, 1); } // Integer
else if (argtyp == 3) { // Label
var target = ReadInt(argval, 1);
var label = labels[target];
if (!label) { label = ":label" + target; labels[label] = target; }
argstr += ' ' + label;
}
argptr += (2 + arglen);
}
// Go in the script function table to decode the function
if (cmdid < 10000) {
r += script_functionTable1[cmdid] + argstr + "\n";
} else {
if (cmdid >= 20000) {
r += script_functionTable3[cmdid - 20000] + argstr + "\n"; // Optional methods
} else {
r += script_functionTable2[cmdid - 10000] + argstr + "\n";
}
}
ptr += cmdlen;
if (onecmd >= 0) return r; // If we are decompiling just one command, exit now
}
// Remove all unused labels
var scriptlines = r.split('\n');
r = '';
for (var i in scriptlines) {
var line = scriptlines[i];
if (line[0] != ':') { r += line + '\n'; } else { if (labels[line]) { r += line + '\n'; } }
}
return r;
};
// Convert the list of blocks into a script that can be compiled
o.script_blocksToScript = function (script_BuildingBlocks, script_BlockScript) {
var script = '';
if (script_BuildingBlocks) {
if (script_BuildingBlocks['_start']) { script += '##### Starting Block #####\r\n' + script_BuildingBlocks['_start']['code'] + '\r\n\r\n'; }
for (var i in script_BlockScript) {
var code = script_BlockScript[i]['code'];
code = code.split("%%%~%%%").join(i);
for (var j in script_BlockScript[i]['vars']) { code = code.split("%%%" + j + "%%%").join(script_BlockScript[i]['vars'][j]['value']); }
script += '##### Block: ' + script_BlockScript[i]['name'] + ' #####\r\nHighlightBlock __t ' + i + '\r\n' + code + '\r\n\r\n';
}
if (script_BuildingBlocks['_end']) { script += '##### Ending Block #####\r\n' + script_BuildingBlocks['_end']['code'] + '\r\nHighlightBlock\r\n'; }
}
return script;
};
return o;
};