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Netscript reimplementation

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MrNuggelz 2017-06-28 11:47:42 +02:00
parent 38e1c77c5c
commit 0e14fe1632
9 changed files with 4482 additions and 1719 deletions
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1
index.html
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@ -35,6 +35,7 @@
<script src="src/NetscriptEvaluator.js"></script>
<script src="src/NetscriptEnvironment.js"></script>
<script src="src/NetscriptFunctions.js"></script>
<script src="utils/acorn.js"></script>
<!-- Main game files -->
<script src="src/Constants.js"></script>

8
src/NetscriptEnvironment.js
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@ -1,8 +1,12 @@
/* Environment
* NetScript program environment
*/
function Environment(parent) {
this.vars = Object.create(parent ? parent.vars : null);
function Environment(workerScript,parent) {
if (parent){
this.vars = parent.vars;
} else {
this.vars = NetscriptFunctions(workerScript);
}
this.parent = parent;
this.stopFlag = false;
}

1154
src/NetscriptEvaluator.js
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File diff suppressed because it is too large Load Diff

908
src/NetscriptFunctions.js
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@ -1,453 +1,475 @@
/* Netscript Functions
* Implementation for Netscript features */
function netscriptArray(exp, workerScript) {
var env = workerScript.env;
var arr = env.get(exp.value);
return new Promise(function(resolve, reject) {
if (exp.index == null || exp.index == undefined) {
if ((exp.op.type == "call" && exp.op.func.value == "length") ||
(exp.op.type == "var" && exp.op.value == "length")) {
return resolve(arr.length);
} else if ((exp.op.type == "call" && exp.op.func.value == "clear") ||
(exp.op.type == "var" && exp.op.value == "clear")) {
arr.length = 0;
return resolve(true);
} else if (exp.op.type == "call" && exp.op.func.value == "push") {
if (exp.op.args.length == 1) {
var entry = Object.assign({}, exp.op.args[0]);
arr.push(entry);
return resolve(true);
} else {
return reject(makeRuntimeRejectMsg(workerScript, "Invalid number of arguments passed into array.push() command. Takes 1 argument"));
}
} else {
return reject(makeRuntimeRejectMsg(workerScript, "Invalid operation on an array"));
function NetscriptFunctions(workerScript) {
return {
hacknetnodes : Player.hacknetNodes,
scan : function(ip=workerScript.serverIp){
var server = getServer(ip);
if (server == null) {
throw makeRuntimeRejectMsg(workerScript, 'Invalid IP or hostname passed into scan() command');
}
var out = [];
for (var i = 0; i < server.serversOnNetwork.length; i++) {
var entry = server.getServerOnNetwork(i).hostname;
if (entry == null) {
continue;
}
out.push(entry);
}
workerScript.scriptRef.log('scan() returned ' + server.serversOnNetwork.length + ' connections for ' + server.hostname);
return out;
},
hack : function(ip){
if (ip === undefined) {
throw makeRuntimeRejectMsg(workerScript, "Hack() call has incorrect number of arguments. Takes 1 argument");
}
var threads = workerScript.scriptRef.threads;
if (isNaN(threads) || threads < 1) {threads = 1;}
var server = getServer(ip);
if (server == null) {
throw workerScript.scriptRef.log("hack() error. Invalid IP or hostname passed in: " + ip + ". Stopping...");
}
}
//The array is being indexed
var indexPromise = evaluate(exp.index.value, workerScript);
indexPromise.then(function(i) {
if (isNaN(i)) {
return reject(makeRuntimeRejectMsg(workerScript, "Invalid access to array. Index is not a number: " + idx));
} else if (i >= arr.length || i < 0) {
return reject(makeRuntimeRejectMsg(workerScript, "Out of bounds: Invalid index in [] operator"));
} else {
if (exp.op && exp.op.type == "call") {
switch(exp.op.func.value) {
case "insert":
if (exp.op.args.length == 1) {
var entry = Object.assign({}, exp.op.args[0]);
arr.splice(i, 0, entry);
return resolve(arr.length);
} else {
return reject(makeRuntimeRejectMsg(workerScript, "Invalid number of arguments passed into array insert() call. Takes 1 argument"));
}
break;
case "remove":
if (exp.op.args.length == 0) {
return resolve(arr.splice(i, 1));
} else {
return reject(makeRuntimeRejectMsg(workerScript, "Invalid number of arguments passed into array remove() call. Takes 1 argument"));
}
break;
default:
return reject(makeRuntimeRejectMsg(workerScript, "Invalid call on array element: " + exp.op.func.value));
break;
//Calculate the hacking time
var hackingTime = scriptCalculateHackingTime(server); //This is in seconds
//No root access or skill level too low
if (server.hasAdminRights == false) {
throw workerScript.scriptRef.log("Cannot hack this server (" + server.hostname + ") because user does not have root access");
}
if (server.requiredHackingSkill > Player.hacking_skill) {
throw workerScript.scriptRef.log("Cannot hack this server (" + server.hostname + ") because user's hacking skill is not high enough");
}
workerScript.scriptRef.log("Attempting to hack " + ip + " in " + hackingTime.toFixed(3) + " seconds (t=" + threads + ")");
//console.log("Hacking " + server.hostname + " after " + hackingTime.toString() + " seconds (t=" + threads + ")");
return netscriptDelay(hackingTime* 1000).then(function() {
if (workerScript.env.stopFlag) {return Promise.reject(workerScript);}
var hackChance = scriptCalculateHackingChance(server);
var rand = Math.random();
var expGainedOnSuccess = scriptCalculateExpGain(server) * threads;
var expGainedOnFailure = (expGainedOnSuccess / 4);
if (rand < hackChance) { //Success!
var moneyGained = scriptCalculatePercentMoneyHacked(server);
moneyGained = Math.floor(server.moneyAvailable * moneyGained) * threads;
//Over-the-top safety checks
if (moneyGained <= 0) {
moneyGained = 0;
expGainedOnSuccess = expGainedOnFailure;
}
} else {
//Return the indexed element
var resPromise = evaluate(arr[i], workerScript);
resPromise.then(function(res) {
resolve(res);
}, function(e) {
reject(e);
});
if (moneyGained > server.moneyAvailable) {moneyGained = server.moneyAvailable;}
server.moneyAvailable -= moneyGained;
if (server.moneyAvailable < 0) {server.moneyAvailable = 0;}
Player.gainMoney(moneyGained);
workerScript.scriptRef.onlineMoneyMade += moneyGained;
workerScript.scriptRef.recordHack(server.ip, moneyGained, threads);
Player.gainHackingExp(expGainedOnSuccess);
workerScript.scriptRef.onlineExpGained += expGainedOnSuccess;
//console.log("Script successfully hacked " + server.hostname + " for $" + formatNumber(moneyGained, 2) + " and " + formatNumber(expGainedOnSuccess, 4) + " exp");
workerScript.scriptRef.log("Script SUCCESSFULLY hacked " + server.hostname + " for $" + formatNumber(moneyGained, 2) + " and " + formatNumber(expGainedOnSuccess, 4) + " exp (t=" + threads + ")");
server.fortify(CONSTANTS.ServerFortifyAmount * threads);
return Promise.resolve(true);
} else {
//Player only gains 25% exp for failure? TODO Can change this later to balance
Player.gainHackingExp(expGainedOnFailure);
workerScript.scriptRef.onlineExpGained += expGainedOnFailure;
//console.log("Script unsuccessful to hack " + server.hostname + ". Gained " + formatNumber(expGainedOnFailure, 4) + " exp");
workerScript.scriptRef.log("Script FAILED to hack " + server.hostname + ". Gained " + formatNumber(expGainedOnFailure, 4) + " exp (t=" + threads + ")");
return Promise.resolve(false);
}
}
}, function(e) {
reject(e);
});
});
}
function netscriptAssign(exp, workerScript) {
var env = workerScript.env;
return new Promise(function(resolve, reject) {
if (env.stopFlag) {return reject(workerScript);}
if (exp.left.type != "var") {
return reject(makeRuntimeRejectMsg(workerScript, "Cannot assign to " + JSON.stringify(exp.left)));
}
//Assigning an element in an array
if (exp.left.index) {
try {
var res = env.get(exp.left.value);
if (res.constructor === Array || res instanceof Array) {
var i = 0;
var iPromise = evaluate(exp.left.index.value, workerScript);
iPromise.then(function(idx) {
if (isNaN(idx)) {
return reject(makeRuntimeRejectMsg(workerScript, "Invalid access to array. Index is not a number: " + idx));
} else if (idx >= res.length || idx < 0) {
return reject(makeRuntimeRejectMsg(workerScript, "Out of bounds: Invalid index in [] operator"));
} else {
//Clone res to be exp.right
i = idx;
res[i] = Object.assign({}, exp.right);
return evaluate(exp.right, workerScript);
}
}).then(function(finalRes) {
resolve(finalRes);
}).catch(function(e) {
return reject(e);
});
} else {
return reject(makeRuntimeRejectMsg(workerScript, "Trying to access a non-array variable using the [] operator"));
}
} catch(e) {
return reject(makeRuntimeRejectMsg(workerScript, e.toString()));
}
} else {
var expRightPromise = evaluate(exp.right, workerScript);
expRightPromise.then(function(expRight) {
try {
env.set(exp.left.value, expRight);
} catch (e) {
return reject(makeRuntimeRejectMsg(workerScript, "Failed to set environment variable: " + e.toString()));
}
resolve(false); //Return false so this doesnt cause conditionals to evaluate
}, function(e) {
reject(e);
});
}
});
}
function netscriptBinary(exp, workerScript) {
var env = workerScript.env;
if (env.stopFlag) {return Promise.reject(workerScript);}
var opPromises = [evaluate(exp.left, workerScript), evaluate(exp.right, workerScript)];
return Promise.all(opPromises).then(function (ops) {
try {
var result = apply_op(exp.operator, ops[0], ops[1]);
return Promise.resolve(result);
} catch(e) {
return Promise.reject(e);
}
}).catch(function(e) {
return Promise.reject(e);
});
}
function netscriptHack(exp, workerScript) {
var env = workerScript.env;
if (env.stopFlag) {return Promise.reject(workerScript);}
var threads = workerScript.scriptRef.threads;
if (isNaN(threads) || threads < 1) {threads = 1;}
if (exp.args.length != 1) {
return Promise.reject(makeRuntimeRejectMsg(workerScript, "Hack() call has incorrect number of arguments. Takes 1 argument"));
}
var ipPromise = evaluate(exp.args[0], workerScript);
return ipPromise.then(function(ip) {
var server = getServer(ip);
if (server == null) {
workerScript.scriptRef.log("hack() error. Invalid IP or hostname passed in: " + ip + ". Stopping...");
return Promise.reject(makeRuntimeRejectMsg(workerScript, "Invalid IP or hostname passed into hack() command"));
}
//Calculate the hacking time
var hackingTime = scriptCalculateHackingTime(server); //This is in seconds
//No root access or skill level too low
if (server.hasAdminRights == false) {
workerScript.scriptRef.log("Cannot hack this server (" + server.hostname + ") because user does not have root access");
return Promise.reject(makeRuntimeRejectMsg(workerScript, "Script crashed because it did not have root access to " + server.hostname));
}
if (server.requiredHackingSkill > Player.hacking_skill) {
workerScript.scriptRef.log("Cannot hack this server (" + server.hostname + ") because user's hacking skill is not high enough");
return Promise.reject(makeRuntimeRejectMsg(workerScript, "Script crashed because player's hacking skill is not high enough to hack " + server.hostname));
}
workerScript.scriptRef.log("Attempting to hack " + ip + " in " + hackingTime.toFixed(3) + " seconds (t=" + threads + ")");
return Promise.resolve([server, hackingTime]);
}).then(function([server, hackingTime]) {
//console.log("Hacking " + server.hostname + " after " + hackingTime.toString() + " seconds (t=" + threads + ")");
return netscriptDelay(hackingTime* 1000).then(function() {
if (env.stopFlag) {return Promise.reject(workerScript);}
var hackChance = scriptCalculateHackingChance(server);
var rand = Math.random();
var expGainedOnSuccess = scriptCalculateExpGain(server) * threads;
var expGainedOnFailure = (expGainedOnSuccess / 4);
if (rand < hackChance) { //Success!
var moneyGained = scriptCalculatePercentMoneyHacked(server);
moneyGained = Math.floor(server.moneyAvailable * moneyGained) * threads;
//Over-the-top safety checks
if (moneyGained <= 0) {
moneyGained = 0;
expGainedOnSuccess = expGainedOnFailure;
}
if (moneyGained > server.moneyAvailable) {moneyGained = server.moneyAvailable;}
server.moneyAvailable -= moneyGained;
if (server.moneyAvailable < 0) {server.moneyAvailable = 0;}
Player.gainMoney(moneyGained);
workerScript.scriptRef.onlineMoneyMade += moneyGained;
workerScript.scriptRef.recordHack(server.ip, moneyGained, threads);
Player.gainHackingExp(expGainedOnSuccess);
workerScript.scriptRef.onlineExpGained += expGainedOnSuccess;
//console.log("Script successfully hacked " + server.hostname + " for $" + formatNumber(moneyGained, 2) + " and " + formatNumber(expGainedOnSuccess, 4) + " exp");
workerScript.scriptRef.log("Script SUCCESSFULLY hacked " + server.hostname + " for $" + formatNumber(moneyGained, 2) + " and " + formatNumber(expGainedOnSuccess, 4) + " exp (t=" + threads + ")");
server.fortify(CONSTANTS.ServerFortifyAmount * threads);
},
sleep : function(time){
if (time === undefined) {
throw makeRuntimeRejectMsg(workerScript, "sleep() call has incorrect number of arguments. Takes 1 argument");
}
workerScript.scriptRef.log("Sleeping for " + sleepTime + " milliseconds");
return netscriptDelay(sleepTime).then(function() {
return Promise.resolve(true);
} else {
//Player only gains 25% exp for failure? TODO Can change this later to balance
Player.gainHackingExp(expGainedOnFailure);
workerScript.scriptRef.onlineExpGained += expGainedOnFailure;
//console.log("Script unsuccessful to hack " + server.hostname + ". Gained " + formatNumber(expGainedOnFailure, 4) + " exp");
workerScript.scriptRef.log("Script FAILED to hack " + server.hostname + ". Gained " + formatNumber(expGainedOnFailure, 4) + " exp (t=" + threads + ")");
return Promise.resolve(false);
});
},
grow : function(ip){
var threads = workerScript.scriptRef.threads;
if (isNaN(threads) || threads < 1) {threads = 1;}
if (ip === undefined) {
throw makeRuntimeRejectMsg(workerScript, "grow() call has incorrect number of arguments. Takes 1 argument");
}
});
}).then(function(res) {
return Promise.resolve(res);
}).catch(function(e) {
return Promise.reject(e);
});
}
function netscriptGrow(exp, workerScript) {
var env = workerScript.env;
if (env.stopFlag) {return Promise.reject(workerScript);}
var threads = workerScript.scriptRef.threads;
if (isNaN(threads) || threads < 1) {threads = 1;}
if (exp.args.length != 1) {
return Promise.reject(makeRuntimeRejectMsg(workerScript, "grow() call has incorrect number of arguments. Takes 1 argument"));
}
var ipPromise = evaluate(exp.args[0], workerScript);
return ipPromise.then(function(ip) {
if (env.stopFlag) {return Promise.reject(workerScript);}
var server = getServer(ip);
if (server == null) {
workerScript.scriptRef.log("Cannot grow(). Invalid IP or hostname passed in: " + ip);
return Promise.reject(makeRuntimeRejectMsg(workerScript, "Invalid IP or hostname passed into grow() command"));
}
//No root access or skill level too low
if (server.hasAdminRights == false) {
workerScript.scriptRef.log("Cannot grow this server (" + server.hostname + ") because user does not have root access");
return Promise.reject(makeRuntimeRejectMsg(workerScript, "Script crashed because it did not have root access to " + server.hostname));
}
var growTime = scriptCalculateGrowTime(server);
//console.log("Executing grow() on server " + server.hostname + " in " + formatNumber(growTime/1000, 3) + " seconds")
workerScript.scriptRef.log("Executing grow() on server " + server.hostname + " in " + formatNumber(growTime/1000, 3) + " seconds (t=" + threads + ")");
return Promise.resolve([server, growTime]);
}).then(function([server, growTime]) {
if (env.stopFlag) {return Promise.reject(workerScript);}
return netscriptDelay(growTime).then(function() {
if (env.stopFlag) {return Promise.reject(workerScript);}
server.moneyAvailable += (1 * threads); //It can be grown even if it has no money
var growthPercentage = processSingleServerGrowth(server, 450 * threads);
workerScript.scriptRef.recordGrow(server.ip, threads);
var expGain = scriptCalculateExpGain(server) * threads;
if (growthPercentage == 1) {
expGain = 0;
var server = getServer(ip);
if (server == null) {
throw workerScript.scriptRef.log("Cannot grow(). Invalid IP or hostname passed in: " + ip);
}
workerScript.scriptRef.log("Available money on " + server.hostname + " grown by "
+ formatNumber(growthPercentage*100 - 100, 6) + "%. Gained " +
formatNumber(expGain, 4) + " hacking exp (t=" + threads +")");
workerScript.scriptRef.onlineExpGained += expGain;
Player.gainHackingExp(expGain);
return Promise.resolve(growthPercentage);
});
}).then(function(res) {
return Promise.resolve(res);
}).catch(function(e) {
return Promise.reject(e);
})
//No root access or skill level too low
if (server.hasAdminRights == false) {
throw workerScript.scriptRef.log("Cannot grow this server (" + server.hostname + ") because user does not have root access");
}
var growTime = scriptCalculateGrowTime(server);
//console.log("Executing grow() on server " + server.hostname + " in " + formatNumber(growTime/1000, 3) + " seconds")
workerScript.scriptRef.log("Executing grow() on server " + server.hostname + " in " + formatNumber(growTime/1000, 3) + " seconds (t=" + threads + ")");
return netscriptDelay(growTime).then(function() {
if (workerScript.env.stopFlag) {return Promise.reject(workerScript);}
server.moneyAvailable += (1 * threads); //It can be grown even if it has no money
var growthPercentage = processSingleServerGrowth(server, 450 * threads);
workerScript.scriptRef.recordGrow(server.ip, threads);
var expGain = scriptCalculateExpGain(server) * threads;
if (growthPercentage == 1) {
expGain = 0;
}
workerScript.scriptRef.log("Available money on " + server.hostname + " grown by "
+ formatNumber(growthPercentage*100 - 100, 6) + "%. Gained " +
formatNumber(expGain, 4) + " hacking exp (t=" + threads +")");
workerScript.scriptRef.onlineExpGained += expGain;
Player.gainHackingExp(expGain);
return Promise.resolve(growthPercentage);
});
},
weaken : function(ip){
var threads = workerScript.scriptRef.threads;
if (isNaN(threads) || threads < 1) {threads = 1;}
if (ip === undefined) {
throw makeRuntimeRejectMsg(workerScript, "weaken() call has incorrect number of arguments. Takes 1 argument");
}
var server = getServer(ip);
if (server == null) {
throw workerScript.scriptRef.log("Cannot weaken(). Invalid IP or hostname passed in: " + ip);
}
//No root access or skill level too low
if (server.hasAdminRights == false) {
throw workerScript.scriptRef.log("Cannot weaken this server (" + server.hostname + ") because user does not have root access");
}
var weakenTime = scriptCalculateWeakenTime(server);
//console.log("Executing weaken() on server " + server.hostname + " in " + formatNumber(weakenTime/1000, 3) + " seconds")
workerScript.scriptRef.log("Executing weaken() on server " + server.hostname + " in " +
formatNumber(weakenTime/1000, 3) + " seconds (t=" + threads + ")");
return netscriptDelay(weakenTime).then(function() {
if (workerScript.env.stopFlag) {return Promise.reject(workerScript);}
server.weaken(CONSTANTS.ServerWeakenAmount * threads);
workerScript.scriptRef.recordWeaken(server.ip, threads);
var expGain = scriptCalculateExpGain(server) * threads;
workerScript.scriptRef.log("Server security level on " + server.hostname + " weakened to " + server.hackDifficulty +
". Gained " + formatNumber(expGain, 4) + " hacking exp (t=" + threads + ")");
workerScript.scriptRef.onlineExpGained += expGain;
Player.gainHackingExp(expGain);
return Promise.resolve(CONSTANTS.ServerWeakenAmount * threads);
});
},
print : function(args){
if (args === undefined) {
throw makeRuntimeRejectMsg(workerScript, "print() call has incorrect number of arguments. Takes 1 argument");
}
workerScript.scriptRef.log(args.toString());
},
nuke : function(ip){
if (ip === undefined) {
throw makeRuntimeRejectMsg(workerScript, "Program call has incorrect number of arguments. Takes 1 argument");
}
var server = getServer(ip);
if (server == null) {
throw workerScript.scriptRef.log("Cannot call " + programName + ". Invalid IP or hostname passed in: " + ip);
}
if (server.openPortCount < server.numOpenPortsRequired) {
throw makeRuntimeRejectMsg(workerScript, "Not enough ports opened to use NUKE.exe virus");
}
if (server.hasAdminRights) {
workerScript.scriptRef.log("Already have root access to " + server.hostname);
} else {
server.hasAdminRights = true;
workerScript.scriptRef.log("Executed NUKE.exe virus on " + server.hostname + " to gain root access");
}
return true;
},
brutessh : function(ip){
if (ip === undefined) {
throw makeRuntimeRejectMsg(workerScript, "Program call has incorrect number of arguments. Takes 1 argument");
}
var server = getServer(ip);
if (server == null) {
throw workerScript.scriptRef.log("Cannot call " + programName + ". Invalid IP or hostname passed in: " + ip);
}
if (!server.sshPortOpen) {
workerScript.scriptRef.log("Executed BruteSSH.exe virus on " + server.hostname + " to open SSH port (22)");
server.sshPortOpen = true;
++server.openPortCount;
} else {
workerScript.scriptRef.log("SSH Port (22) already opened on " + server.hostname);
}
return true;
},
ftpcrack : function(ip){
if (ip === undefined) {
throw makeRuntimeRejectMsg(workerScript, "Program call has incorrect number of arguments. Takes 1 argument");
}
var server = getServer(ip);
if (server == null) {
throw workerScript.scriptRef.log("Cannot call " + programName + ". Invalid IP or hostname passed in: " + ip);
}
if (!server.ftpPortOpen) {
workerScript.scriptRef.log("Executed FTPCrack.exe virus on " + server.hostname + " to open FTP port (21)");
server.ftpPortOpen = true;
++server.openPortCount;
} else {
workerScript.scriptRef.log("FTP Port (21) already opened on " + server.hostname);
}
return true;
},
relaysmtp : function(ip){
if (ip === undefined) {
throw makeRuntimeRejectMsg(workerScript, "Program call has incorrect number of arguments. Takes 1 argument");
}
var server = getServer(ip);
if (server == null) {
throw workerScript.scriptRef.log("Cannot call " + programName + ". Invalid IP or hostname passed in: " + ip);
}
if (!server.smtpPortOpen) {
workerScript.scriptRef.log("Executed relaySMTP.exe virus on " + server.hostname + " to open SMTP port (25)");
server.smtpPortOpen = true;
++server.openPortCount;
} else {
workerScript.scriptRef.log("SMTP Port (25) already opened on " + server.hostname);
}
return true;
},
httpworm : function(ip){
if (ip === undefined) {
throw makeRuntimeRejectMsg(workerScript, "Program call has incorrect number of arguments. Takes 1 argument");
}
var server = getServer(ip);
if (server == null) {
throw workerScript.scriptRef.log("Cannot call " + programName + ". Invalid IP or hostname passed in: " + ip);
}
if (!server.httpPortOpen) {
workerScript.scriptRef.log("Executed HTTPWorm.exe virus on " + server.hostname + " to open HTTP port (80)");
server.httpPortOpen = true;
++server.openPortCount;
} else {
workerScript.scriptRef.log("HTTP Port (80) already opened on " + server.hostname);
}
return true;
},
sqlinject : function(ip){
if (ip === undefined) {
throw makeRuntimeRejectMsg(workerScript, "Program call has incorrect number of arguments. Takes 1 argument");
}
var server = getServer(ip);
if (server == null) {
throw workerScript.scriptRef.log("Cannot call " + programName + ". Invalid IP or hostname passed in: " + ip);
}
if (!server.sqlPortOpen) {
workerScript.scriptRef.log("Executed SQLInject.exe virus on " + server.hostname + " to open SQL port (1433)");
server.sqlPortOpen = true;
++server.openPortCount;
} else {
workerScript.scriptRef.log("SQL Port (1433) already opened on " + server.hostname);
}
return true;
},
run : function(scriptname,threads = 1,argsForNewScript=[]){
if (scriptname === undefined) {
throw makeRuntimeRejectMsg(workerScript, "run() call has incorrect number of arguments. Usage: run(scriptname, [numThreads], [arg1], [arg2]...)");
}
if (isNaN(threads) || threads < 1) {
throw makeRuntimeRejectMsg(workerScript, "Invalid argument for thread count passed into run(). Must be numeric and greater than 0");
}
var scriptServer = getServer(workerScript.serverIp);
if (scriptServer == null) {
throw makeRuntimeRejectMsg(workerScript, "Could not find server. This is a bug in the game. Report to game dev");
}
return runScriptFromScript(scriptServer, scriptname, argsForNewScript, workerScript, threads);
},
exec : function(scriptname,ip,threads = 1,argsForNewScript=[]){
if (scriptname === undefined || ip === undefined) {
throw makeRuntimeRejectMsg(workerScript, "exec() call has incorrect number of arguments. Usage: exec(scriptname, server, [numThreads], [arg1], [arg2]...)");
}
if (isNaN(threads) || threads < 1) {
throw makeRuntimeRejectMsg(workerScript, "Invalid argument for thread count passed into exec(). Must be numeric and greater than 0");
}
var server = getServer(ip);
if (server == null) {
throw makeRuntimeRejectMsg(workerScript, "Invalid hostname/ip passed into exec() command: " + args[1]);
}
return runScriptFromScript(server, scriptname, argsForNewScript, workerScript, threads);
},
kill : function(filename,ip,argsForKillTarget=[]){
if (filename === undefined || ip === undefined) {
throw makeRuntimeRejectMsg(workerScript, "kill() call has incorrect number of arguments. Usage: kill(scriptname, server, [arg1], [arg2]...)");
}
var server = getServer(ip);
if (server == null) {
throw workerScript.scriptRef.log("kill() failed. Invalid IP or hostname passed in: " + ip);
}
var runningScriptObj = findRunningScript(filename, argsForKillTarget, server);
if (runningScriptObj == null) {
workerScript.scriptRef.log("kill() failed. No such script "+ filename + " on " + server.hostname + " with args: " + printArray(argsForKillTarget));
return false;
}
var res = killWorkerScript(runningScriptObj, server.ip);
if (res) {
workerScript.scriptRef.log("Killing " + filename + " on " + server.hostname + " with args: " + printArray(argsForKillTarget) + ". May take up to a few minutes for the scripts to die...");
return true;
} else {
workerScript.scriptRef.log("kill() failed. No such script "+ filename + " on " + server.hostname + " with args: " + printArray(argsForKillTarget));
return false;
}
},
killall : function(ip){
if (ip === undefined) {
throw makeRuntimeRejectMsg(workerScript, "killall() call has incorrect number of arguments. Takes 1 argument");
}
var server = getServer(ip);
if (server == null) {
throw workerScript.scriptRef.log("killall() failed. Invalid IP or hostname passed in: " + ip);
}
for (var i = server.runningScripts.length-1; i >= 0; --i) {
killWorkerScript(server.runningScripts[i], server.ip);
}
workerScript.scriptRef.log("killall(): Killing all scripts on " + server.hostname + ". May take a few minutes for the scripts to die");
return true;
},
scp : function(scriptname,ip){
if (scriptname === undefined || ip === undefined) {
throw makeRuntimeRejectMsg(workerScript, "scp() call has incorrect number of arguments. Takes 2 arguments");
}
var destServer = getServer(ip);
if (destServer == null) {
throw makeRuntimeRejectMsg(workerScript, "Invalid hostname/ip passed into scp() command: " + ip);
}
var currServ = getServer(workerScript.serverIp);
if (currServ == null) {
throw makeRuntimeRejectMsg(workerScript, "Could not find server ip for this script. This is a bug please contact game developer");
}
var sourceScript = null;
for (var i = 0; i < currServ.scripts.length; ++i) {
if (scriptname == currServ.scripts[i].filename) {
sourceScript = currServ.scripts[i];
break;
}
}
if (sourceScript == null) {
workerScript.scriptRef.log(scriptname + " does not exist. scp() failed");
return false;
}
//Overwrite script if it already exists
for (var i = 0; i < destServer.scripts.length; ++i) {
if (scriptname == destServer.scripts[i].filename) {
workerScript.scriptRef.log("WARNING: " + scriptname + " already exists on " + destServer.hostname + " and it will be overwritten.");
workerScript.scriptRef.log(scriptname + " overwritten on " + destServer.hostname);
var oldScript = destServer.scripts[i];
oldScript.code = sourceScript.code;
oldScript.ramUsage = sourceScript.ramUsage;
return true;
}
}
//Create new script if it does not already exist
var newScript = new Script();
newScript.filename = scriptname;
newScript.code = sourceScript.code;
newScript.ramUsage = sourceScript.ramUsage;
newScript.server = destServer.ip;
destServer.scripts.push(newScript);
workerScript.scriptRef.log(scriptname + " copied over to " + destServer.hostname);
return true;
},
hasRootAccess : function(ip){
if (ip===undefinied){
throw makeRuntimeRejectMsg(workerScript, "hasRootAccess() call has incorrect number of arguments. Takes 1 argument");
}
var server = getServer(ip);
if (server == null){
throw workerScript.scriptRef.log("hasRootAccess() failed. Invalid IP or hostname passed in: " + ip);
}
return server.hasAdimRights;
},
getHostname : function(){
var scriptServer = getServer(workerScript.serverIp);
if (scriptServer == null) {
throw makeRuntimeRejectMsg(workerScript, "Could not find server. This is a bug in the game. Report to game dev");
}
return scriptServer.hostname;
},
getHackingLevel : function(){
Player.updateSkillLevels();
workerScript.scriptRef.log("getHackingLevel() returned " + Player.hacking_skill);
return Player.hacking_skill;
},
getServerMoneyAvailable : function(ip){
var server = getServer(ip);
if (server == null) {
throw workerScript.scriptRef.log("Cannot getServerMoneyAvailable(). Invalid IP or hostname passed in: " + ip);
}
workerScript.scriptRef.log("getServerMoneyAvailable() returned " + formatNumber(server.moneyAvailable, 2) + " for " + server.hostname);
return server.moneyAvailable;
},
getServerSecurityLevel : function(ip){
var server = getServer(ip);
if (server == null) {
throw workerScript.scriptRef.log("getServerSecurityLevel() failed. Invalid IP or hostname passed in: " + ip);
}
workerScript.scriptRef.log("getServerSecurityLevel() returned " + formatNumber(server.hackDifficulty, 3) + " for " + server.hostname);
return server.hackDifficulty;
},
getServerBaseSecurityLevel : function(ip){
var server = getServer(ip);
if (server == null) {
throw workerScript.scriptRef.log("getServerBaseSecurityLevel() failed. Invalid IP or hostname passed in: " + ip);
}
workerScript.scriptRef.log("getServerBaseSecurityLevel() returned " + formatNumber(server.baseDifficulty, 3) + " for " + server.hostname);
return server.baseDifficulty;
},
getServerRequiredHackingLevel : function(ip){
var server = getServer(ip);
if (server == null) {
throw workerScript.scriptRef.log("getServerRequiredHackingLevel() failed. Invalid IP or hostname passed in: " + ip);
}
workerScript.scriptRef.log("getServerRequiredHackingLevel returned " + formatNumber(server.requiredHackingSkill, 0) + " for " + server.hostname);
return server.requiredHackingSkill;
},
getServerMaxMoney : function(ip){
var server = getServer(ip);
if (server == null) {
throw workerScript.scriptRef.log("getServerRequiredHackingLevel() failed. Invalid IP or hostname passed in: " + ip);
}
workerScript.scriptRef.log("getServerMaxMoney() returned " + formatNumber(server.moneyMax, 0) + " for " + server.hostname);
return server.moneyMax;
},
fileExists : function(filename,ip=workerScript.serverIp){
if (filename === undefined) {
throw makeRuntimeRejectMsg(workerScript, "fileExists() call has incorrect number of arguments. Usage: fileExists(scriptname, [server])");
}
var server = getServer(ip);
if (server == null) {
throw workerScript.scriptRef.log("fileExists() failed. Invalid IP or hostname passed in: " + ip);
}
for (var i = 0; i < server.scripts.length; ++i) {
if (filename == server.scripts[i].filename) {
return true;
}
}
if (Player.hasProgram(filename)) {
return true; //wrong?
}
return false;
},
isRunning : function(filename,ip,argsForTargetScript=[]){
if (filename === undefined || ip === undefined) {
throw makeRuntimeRejectMsg(workerScript, "isRunning() call has incorrect number of arguments. Usage: isRunning(scriptname, server, [arg1], [arg2]...)");
}
var server = getServer(ip);
if (server == null) {
throw workerScript.scriptRef.log("isRunning() failed. Invalid IP or hostname passed in: " + ip);
}
return findRunningScript(filename, argsForTargetScript, server) != null;
},
purchaseHacknetNode : purchaseHacknet
}
}
function netscriptWeaken(exp, workerScript) {
var env = workerScript.env;
if (env.stopFlag) {return Promise.reject(workerScript);}
var threads = workerScript.scriptRef.threads;
if (isNaN(threads) || threads < 1) {threads = 1;}
if (exp.args.length != 1) {
return Promise.reject(makeRuntimeRejectMsg(workerScript, "weaken() call has incorrect number of arguments. Takes 1 argument"));
}
var ipPromise = evaluate(exp.args[0], workerScript);
return ipPromise.then(function(ip) {
if (env.stopFlag) {return Promise.reject(workerScript);}
var server = getServer(ip);
if (server == null) {
workerScript.scriptRef.log("Cannot weaken(). Invalid IP or hostname passed in: " + ip);
return Promise.reject(makeRuntimeRejectMsg(workerScript, "Invalid IP or hostname passed into weaken() command"));
}
//No root access or skill level too low
if (server.hasAdminRights == false) {
workerScript.scriptRef.log("Cannot weaken this server (" + server.hostname + ") because user does not have root access");
return Promise.reject(makeRuntimeRejectMsg(workerScript, "Script crashed because it did not have root access to " + server.hostname));
}
var weakenTime = scriptCalculateWeakenTime(server);
//console.log("Executing weaken() on server " + server.hostname + " in " + formatNumber(weakenTime/1000, 3) + " seconds")
workerScript.scriptRef.log("Executing weaken() on server " + server.hostname + " in " +
formatNumber(weakenTime/1000, 3) + " seconds (t=" + threads + ")");
return Promise.resolve([server, weakenTime]);
}).then(function([server, weakenTime]) {
if (env.stopFlag) {return Promise.reject(workerScript);}
return netscriptDelay(weakenTime).then(function() {
if (env.stopFlag) {return Promise.reject(workerScript);}
server.weaken(CONSTANTS.ServerWeakenAmount * threads);
workerScript.scriptRef.recordWeaken(server.ip, threads);
var expGain = scriptCalculateExpGain(server) * threads;
workerScript.scriptRef.log("Server security level on " + server.hostname + " weakened to " + server.hackDifficulty +
". Gained " + formatNumber(expGain, 4) + " hacking exp (t=" + threads + ")");
workerScript.scriptRef.onlineExpGained += expGain;
Player.gainHackingExp(expGain);
return Promise.resolve(CONSTANTS.ServerWeakenAmount * threads);
});
}).then(function(res) {
return Promise.resolve(res);
}).catch(function(e) {
return Promise.reject(e);
});
}
function netscriptRunProgram(exp, workerScript, programName) {
var env = workerScript.env;
if (env.stopFlag) {return Promise.reject(workerScript);}
if (exp.args.length != 1) {
return Promise.reject(makeRuntimeRejectMsg(workerScript, "Program call has incorrect number of arguments. Takes 1 argument"));
}
var ipPromise = evaluate(exp.args[0], workerScript);
return ipPromise.then(function(ip) {
if (env.stopFlag) {return Promise.reject(workerScript);}
var server = getServer(ip);
if (server == null) {
workerScript.scriptRef.log("Cannot call " + programName + ". Invalid IP or hostname passed in: " + ip);
return Promise.reject(makeRuntimeRejectMsg(workerScript, "Invalid IP or hostname passed into " + programName + " command"));
}
if (!Player.hasProgram(programName)) {
return Promise.reject(makeRuntimeRejectMsg(workerScript, "Player does not have " + programName + " on home computer"));
}
switch(programName) {
case Programs.NukeProgram:
return netscriptRunNukeProgram(exp, workerScript, server);
break;
case Programs.BruteSSHProgram:
return netscriptRunBrutesshProgram(exp, workerScript, server);
break;
case Programs.FTPCrackProgram:
return netscriptRunFtpcrackProgram(exp, workerScript, server);
break;
case Programs.RelaySMTPProgram:
return netscriptRunRelaysmtpProgram(exp, workerScript, server);
break;
case Programs.HTTPWormProgram:
return netscriptRunHttpwormProgram(exp, workerScript, server);
break;
case Programs.SQLInjectProgram:
return netscriptRunSqlinjectProgram(exp, workerScript, server);
break;
default:
return Promise.reject(makeRuntimeRejectMsg(workerScript, "Invalid program. This is a bug please contact game dev"));
break;
}
}).then(function(res) {
return Promise.resolve(res);
}).catch(function(e) {
return Promise.reject(e);
});
}
function netscriptRunNukeProgram(exp, workerScript, server) {
var env = workerScript.env;
if (env.stopFlag) {return Promise.reject(workerScript);}
if (server.openPortCount < server.numOpenPortsRequired) {
return Promise.reject(makeRuntimeRejectMsg(workerScript, "Not enough ports opened to use NUKE.exe virus"));
}
if (server.hasAdminRights) {
workerScript.scriptRef.log("Already have root access to " + server.hostname);
} else {
server.hasAdminRights = true;
workerScript.scriptRef.log("Executed NUKE.exe virus on " + server.hostname + " to gain root access");
}
return Promise.resolve(true);
}
function netscriptRunBrutesshProgram(exp, workerScript, server) {
var env = workerScript.env;
if (env.stopFlag) {return Promise.reject(workerScript);}
if (!server.sshPortOpen) {
workerScript.scriptRef.log("Executed BruteSSH.exe virus on " + server.hostname + " to open SSH port (22)");
server.sshPortOpen = true;
++server.openPortCount;
} else {
workerScript.scriptRef.log("SSH Port (22) already opened on " + server.hostname);
}
return Promise.resolve(true);
}
function netscriptRunFtpcrackProgram(exp, workerScript, server) {
var env = workerScript.env;
if (env.stopFlag) {return Promise.reject(workerScript);}
if (!server.ftpPortOpen) {
workerScript.scriptRef.log("Executed FTPCrack.exe virus on " + server.hostname + " to open FTP port (21)");
server.ftpPortOpen = true;
++server.openPortCount;
} else {
workerScript.scriptRef.log("FTP Port (21) already opened on " + server.hostname);
}
return Promise.resolve(true);
}
function netscriptRunRelaysmtpProgram(exp, workerScript, server) {
var env = workerScript.env;
if (env.stopFlag) {return Promise.reject(workerScript);}
if (!server.smtpPortOpen) {
workerScript.scriptRef.log("Executed relaySMTP.exe virus on " + server.hostname + " to open SMTP port (25)");
server.smtpPortOpen = true;
++server.openPortCount;
} else {
workerScript.scriptRef.log("SMTP Port (25) already opened on " + server.hostname);
}
return Promise.resolve(true);
}
function netscriptRunHttpwormProgram(exp, workerScript, server) {
var env = workerScript.env;
if (env.stopFlag) {return Promise.reject(workerScript);}
if (!server.httpPortOpen) {
workerScript.scriptRef.log("Executed HTTPWorm.exe virus on " + server.hostname + " to open HTTP port (80)");
server.httpPortOpen = true;
++server.openPortCount;
} else {
workerScript.scriptRef.log("HTTP Port (80) already opened on " + server.hostname);
}
return Promise.resolve(true);
}
function netscriptRunSqlinjectProgram(exp, workerScript, server) {
var env = workerScript.env;
if (env.stopFlag) {return Promise.reject(workerScript);}
if (!server.sqlPortOpen) {
workerScript.scriptRef.log("Executed SQLInject.exe virus on " + server.hostname + " to open SQL port (1433)");
server.sqlPortOpen = true;
++server.openPortCount;
} else {
workerScript.scriptRef.log("SQL Port (1433) already opened on " + server.hostname);
}
return Promise.resolve(true);
}

25
src/NetscriptInputStream.js
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@ -1,25 +0,0 @@
/* InputStream class. Creates a "stream object" that provides operations to read
* from a string. */
function InputStream(input) {
var pos = 0, line = 1, col = 0;
return {
next : next,
peek : peek,
eof : eof,
croak : croak,
};
function next() {
var ch = input.charAt(pos++);
if (ch == "\n") line++, col = 0; else col++;
return ch;
}
function peek() {
return input.charAt(pos);
}
function eof() {
return peek() == "";
}
function croak(msg) {
throw new Error(msg + " (" + line + ":" + col + ")");
}
}

326
src/NetscriptParser.js
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@ -1,326 +0,0 @@
/* Parser
* Creates Abstract Syntax Tree Nodes
* Operates on a stream of tokens from the Tokenizer
*/
var FALSE = {type: "bool", value: false};
function Parser(input) {
var PRECEDENCE = {
"=": 1,
"||": 2,
"&&": 3,
"<": 7, ">": 7, "<=": 7, ">=": 7, "==": 7, "!=": 7,
"+": 10, "-": 10,
"*": 20, "/": 20, "%": 20,
};
return parse_toplevel();
//Returns true if the next token is a punc type with value ch
function is_punc(ch) {
var tok = input.peek();
return tok && tok.type == "punc" && (!ch || tok.value == ch) && tok;
}
//Returns true if the next token is the kw keyword
function is_kw(kw) {
var tok = input.peek();
return tok && tok.type == "kw" && (!kw || tok.value == kw) && tok;
}
//Returns true if the next token is an op type with the given op value
function is_op(op) {
var tok = input.peek();
return tok && tok.type == "op" && (!op || tok.value == op) && tok;
}
//Checks that the next character is the given punctuation character and throws
//an error if it's not. If it is, skips over it in the input
function checkPuncAndSkip(ch) {
if (is_punc(ch)) input.next();
else input.croak("Expecting punctuation: \"" + ch + "\"");
}
//Checks that the next character is the given keyword and throws an error
//if its not. If it is, skips over it in the input
function checkKeywordAndSkip(kw) {
if (is_kw(kw)) input.next();
else input.croak("Expecting keyword: \"" + kw + "\"");
}
//Checks that the next character is the given operator and throws an error
//if its not. If it is, skips over it in the input
function checkOpAndSkip(op) {
if (is_op(op)) input.next();
else input.croak("Expecting operator: \"" + op + "\"");
}
function unexpected() {
input.croak("Unexpected token: " + JSON.stringify(input.peek()));
}
function maybe_binary(left, my_prec) {
var tok = is_op();
if (tok) {
var his_prec = PRECEDENCE[tok.value];
if (his_prec > my_prec) {
input.next();
return maybe_binary({
type : tok.value == "=" ? "assign" : "binary",
operator : tok.value,
left : left,
right : maybe_binary(parse_atom(), his_prec)
}, my_prec);
}
}
return left;
}
function delimited(start, stop, separator, parser) {
var a = [], first = true;
checkPuncAndSkip(start);
while (!input.eof()) {
if (is_punc(stop)) break;
if (first) first = false; else checkPuncAndSkip(separator);
if (is_punc(stop)) break;
a.push(parser());
}
checkPuncAndSkip(stop);
return a;
}
function parse_call(func) {
return {
type: "call",
func: func,
args: delimited("(", ")", ",", parse_expression),
};
}
function parse_varname() {
var name = input.next();
if (name.type != "var") input.croak("Expecting variable name");
return name.value;
}
/* type: "if",
* cond: [ {"type": "var", "value": "cond1"}, {"type": "var", "value": "cond2"}...]
* then: [ {"type": "var", "value": "then1"}, {"type": "var", "value": "then2"}...]
* else: {"type": "var", "value": "foo"}
*/
function parse_if() {
checkKeywordAndSkip("if");
//Conditional
var cond = parse_expression();
//Body
var then = parse_expression();
var ret = {
type: "if",
cond: [],
then: [],
};
ret.cond.push(cond);
ret.then.push(then);
// Parse all elif branches
while (is_kw("elif")) {
input.next();
var cond = parse_expression();
var then = parse_expression();
ret.cond.push(cond);
ret.then.push(then);
}
// Parse else branch, if it exists
if (is_kw("else")) {
input.next();
ret.else = parse_expression();
}
return ret;
}
/* for (init, cond, postloop) {code;}
*
* type: "for",
* init: assign node,
* cond: var node,
* postloop: assign node
* code: prog node
*/
function parse_for() {
checkKeywordAndSkip("for");
temp = delimited("(", ")", ";", parse_expression);
var splitExpressions = temp.slice();
code = parse_expression();
if (splitExpressions.length != 3) {
throw new Error("for statement has incorrect number of arguments");
}
//TODO Check type of the init, cond, and postloop nodes
return {
type: "for",
init: splitExpressions[0],
cond: splitExpressions[1],
postloop: splitExpressions[2],
code: code
}
}
/* while (cond) {}
*
* type: "while",
* cond: var node
* code: prog node
*/
function parse_while() {
checkKeywordAndSkip("while");
var cond = parse_expression();
var code = parse_expression();
return {
type: "while",
cond: cond,
code: code
}
}
/* hacknetnodes[i].operator
*/
function parse_hacknetnodes() {
var index = null;
if (is_punc("[")) {
index = parse_expression();
if (index.type != "index") {
unexpected();
}
}
if (is_punc(".")) {
checkPuncAndSkip(".");
var op = maybe_call(function() {
var tok = input.next();
return tok;
});
return {
type: "var",
value: "hacknetnodes",
index: index,
op: op,
};
}
unexpected();
}
//Declaring a new array with Array[1,2,3]
function parse_arraydecl() {
var array = delimited("[", "]", ",", parse_expression);
return {type: "var",
value: "array",
array: array
};
}
//Parsing an operation on an array, such as accessing, push(), etc.
//tok is a reference to a token of type var
function parse_arrayop(tok) {
//Returns a variable node except with an extra "index" field so
//we can identify it as an index
if (is_punc("[")) {
var index = parse_arrayindex();
if (index.type != "index") {
unexpected();
}
}
var op = null;
if (is_punc(".")) {
checkPuncAndSkip(".");
op = maybe_call(function() {
var callTok = input.next();
return callTok;
});
}
tok.index = index;
tok.op = op; //Will be null if no operation
return tok;
}
function parse_arrayindex() {
var index = delimited("[", "]", ";", parse_expression);
var val = 0;
if (index.length == 1) {
val = index[0];
} else {
unexpected();
}
return { type: "index", value: val };
}
function parse_bool() {
return {
type : "bool",
value : input.next().value == "true"
};
}
function maybe_call(expr) {
expr = expr();
return is_punc("(") ? parse_call(expr) : expr;
}
function parse_atom() {
return maybe_call(function(){
if (is_punc("(")) {
input.next();
var exp = parse_expression();
checkPuncAndSkip(")");
return exp;
}
if (is_punc("{")) return parse_prog();
if (is_punc("[")) return parse_arrayindex();
if (is_kw("if")) return parse_if();
if (is_kw("for")) return parse_for();
if (is_kw("while")) return parse_while();
if (is_kw("true") || is_kw("false")) return parse_bool();
var tok = input.next();
if (tok.type == "var" && tok.value == "hacknetnodes") return parse_hacknetnodes();
if (tok.type == "var" && tok.value == "Array") return parse_arraydecl();
if (tok.type == "var" && (is_punc("[") || is_punc("."))) {
return parse_arrayop(tok);
}
if (tok.type == "var" || tok.type == "num" || tok.type == "str")
return tok;
unexpected();
});
}
function parse_toplevel() {
var prog = [];
while (!input.eof()) {
prog.push(parse_expression());
if (!input.eof()) checkPuncAndSkip(";");
}
//Return the top level Abstract Syntax Tree, where the top node is a "prog" node
return { type: "prog", prog: prog };
}
function parse_prog() {
var prog = delimited("{", "}", ";", parse_expression);
if (prog.length == 0) return FALSE;
if (prog.length == 1) return prog[0];
return { type: "prog", prog: prog };
}
function parse_expression() {
return maybe_call(function(){
return maybe_binary(parse_atom(), 0);
});
}
}

168
src/NetscriptTokenizer.js
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@ -1,168 +0,0 @@
/* Tokenizer
* Acts on top of the InputStream class. Takes in a character input stream and and parses it into tokens.
* Tokens can be accessed with peek() and next().
*
* Token types:
* {type: "punc", value: "(" } // punctuation: parens, comma, semicolon etc.
* {type: "num", value: 5 } // numbers (including floats)
* {type: "str", value: "Hello World!" } // strings
* {type: "kw", value: "for/if/..." } // keywords, see defs below
* {type: "var", value: "a" } // identifiers/variables
* {type: "op", value: "!=" } // operator characters
* {type: "bool", value: "true" } // Booleans
*
*/
function Tokenizer(input) {
var current = null;
var keywords = " if elif else true false while for ";
return {
next : next,
peek : peek,
eof : eof,
croak : input.croak
}
function is_keyword(x) {
return keywords.indexOf(" " + x + " ") >= 0;
}
function is_digit(ch) {
return /[0-9]/i.test(ch);
}
//An identifier can start with any letter or an underscore
function is_id_start(ch) {
return /[a-z_]/i.test(ch);
}
function is_id(ch) {
return is_id_start(ch) || "?!-<>=0123456789".indexOf(ch) >= 0;
}
function is_op_char(ch) {
return "+-*/%=&|<>!".indexOf(ch) >= 0;
}
function is_punc(ch) {
return ",;(){}[].".indexOf(ch) >= 0;
}
function is_whitespace(ch) {
return " \t\n".indexOf(ch) >= 0;
}
function read_while(predicate) {
var str = "";
while (!input.eof() && predicate(input.peek()))
str += input.next();
return str;
}
function read_number() {
var has_dot = false;
//Reads the number from the input. Checks for only a single decimal point
var number = read_while(function(ch){
if (ch == ".") {
if (has_dot) return false;
has_dot = true;
return true;
}
return is_digit(ch);
});
return { type: "num", value: parseFloat(number) };
}
//This function also checks the identifier against a list of known keywords (defined at the top)
//and will return a kw object rather than identifier if it is one
function read_ident() {
//Identifier must start with a letter or underscore..and can contain anything from ?!-<>=0123456789
var id = read_while(is_id);
return {
type : is_keyword(id) ? "kw" : "var",
value : id
};
}
function read_escaped(end) {
var escaped = false, str = "";
input.next(); //Skip the quotation mark
while (!input.eof()) {
var ch = input.next();
if (escaped) {
str += ch;
escaped = false;
} else if (ch == "\\") {
escaped = true;
} else if (ch == end) {
break;
} else {
str += ch;
}
}
return str;
}
function read_string(ch) {
if (ch == '"') {
return { type: "str", value: read_escaped('"') };
} else if (ch == '\'') {
return { type: "str", value: read_escaped('\'') };
}
}
//Only supports single-line comments right now
function skip_comment() {
read_while(function(ch){ return ch != "\n" });
input.next();
}
//Gets the next token
function read_next() {
//Skip over whitespace
read_while(is_whitespace);
if (input.eof()) return null;
//Peek the next character and decide what to do based on what that
//next character is
var ch = input.peek();
if (ch == "//") {
skip_comment();
return read_next();
}
if (ch == '"' || ch == '\'') return read_string(ch);
if (is_digit(ch)) return read_number();
if (is_id_start(ch)) return read_ident();
if (is_punc(ch)) return {
type : "punc",
value : input.next()
}
if (is_op_char(ch)) return {
type : "op",
value : read_while(is_op_char)
}
}
function peek() {
//Returns current token, unless its null in which case it grabs the next one
//and returns it
return current || (current = read_next());
}
function next() {
//The token might have been peaked already, in which case read_next() was already
//called so just return current
var tok = current;
current = null;
return tok || read_next();
}
function eof() {
return peek() == null;
}
}

5
src/NetscriptWorker.js
View File

@ -8,7 +8,8 @@ function WorkerScript(runningScriptObj) {
this.running = false;
this.serverIp = null;
this.code = runningScriptObj.scriptRef.code;
this.env = new Environment();
this.env = new Environment(this);
this.env.set("args", runningScriptObj.args);
this.output = "";
this.ramUsage = 0;
this.scriptRef = runningScriptObj;
@ -31,7 +32,7 @@ function runScriptsLoop() {
//If it isn't running, start the script
if (workerScripts[i].running == false && workerScripts[i].env.stopFlag == false) {
try {
var ast = Parser(Tokenizer(InputStream(workerScripts[i].code)));
var ast = acorn.parse(workerScripts[i].code);
//console.log(ast);
} catch (e) {
console.log("Error parsing script: " + workerScripts[i].name);

3606
utils/acorn.js Normal file
View File

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