AstralTransRocketries/node-minecraft-protocol
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adding incoming and outgoing filters for proxy.js --dump arguments.

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This commit is contained in:
Josh Wolfe 2015-03-24 16:43:38 -07:00
parent 3c7abf7b4a
commit a43e1af1d5
1 changed files with 20 additions and 9 deletions
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29
examples/proxy.js
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@ -10,9 +10,14 @@ function printHelpAndExit(exitCode) {
console.log(" print to stdout all messages, except those specified with -x."); console.log(" print to stdout all messages, except those specified with -x.");
console.log(" -x ID"); console.log(" -x ID");
console.log(" do not print messages with this ID."); console.log(" do not print messages with this ID.");
console.log(" ID");
console.log(" an integer in decimal or hex (given to JavaScript's parseInt())");
console.log(" optionally prefixed with o for client->server or i for client<-server.");
console.log("examples:"); console.log("examples:");
console.log(" node proxy.js --dump-all -x 0x0 -x 0x3 -x 0x12 -x 0x015 -x 0x16 -x 0x17 -x 0x18 -x 0x19 localhost Player"); console.log(" node proxy.js --dump-all -x 0x0 -x 0x3 -x 0x12 -x 0x015 -x 0x16 -x 0x17 -x 0x18 -x 0x19 localhost Player");
console.log(" print all messages except for some of the most prolific."); console.log(" print all messages except for some of the most prolific.");
console.log(" node examples/proxy.js --dump i0x2d --dump i0x2e --dump i0x2f dump i0x30 --dump i0x31 --dump i0x32 --dump o0x0d --dump o0x0e --dump o0x0f --dump o0x10 --dump o0x11 localhost Player");
console.log(" print messages relating to inventory management.");
process.exit(exitCode); process.exit(exitCode);
} }
@ -46,12 +51,15 @@ var printIdBlacklist = {};
continue; continue;
} }
i++; i++;
var arg = parseInt(args[i]); var match = /^([io]?)(.*)/.exec(args[i]);
if (isNaN(arg)) printHelpAndExit(1); var prefix = match[1];
if (prefix === "") prefix = "io";
var number = parseInt(match[2]);
if (isNaN(number)) printHelpAndExit(1);
if (option == "--dump") { if (option == "--dump") {
printIdWhitelist[arg] = true; printIdWhitelist[number] = prefix;
} else if (option == "-x") { } else if (option == "-x") {
printIdBlacklist[arg] = true; printIdBlacklist[number] = prefix;
} else { } else {
printHelpAndExit(1); printHelpAndExit(1);
} }
@ -98,7 +106,7 @@ srv.on('login', function (client) {
var brokenPackets = [/*0x04, 0x2f, 0x30*/]; var brokenPackets = [/*0x04, 0x2f, 0x30*/];
client.on('packet', function(packet) { client.on('packet', function(packet) {
if (targetClient.state == states.PLAY && packet.state == states.PLAY) { if (targetClient.state == states.PLAY && packet.state == states.PLAY) {
if (shouldDump(packet.id)) { if (shouldDump(packet.id, "o")) {
console.log("client->server:", console.log("client->server:",
client.state + ".0x" + packet.id.toString(16) + " :", client.state + ".0x" + packet.id.toString(16) + " :",
JSON.stringify(packet)); JSON.stringify(packet));
@ -111,7 +119,7 @@ srv.on('login', function (client) {
if (packet.state == states.PLAY && client.state == states.PLAY && if (packet.state == states.PLAY && client.state == states.PLAY &&
brokenPackets.indexOf(packet.id) === -1) brokenPackets.indexOf(packet.id) === -1)
{ {
if (shouldDump(packet.id)) { if (shouldDump(packet.id, "i")) {
console.log("client<-server:", console.log("client<-server:",
targetClient.state + ".0x" + packet.id.toString(16) + " :", targetClient.state + ".0x" + packet.id.toString(16) + " :",
(packet.id != 38 ? JSON.stringify(packet) : "Packet too big")); (packet.id != 38 ? JSON.stringify(packet) : "Packet too big"));
@ -168,9 +176,12 @@ srv.on('login', function (client) {
}); });
}); });
function shouldDump(id) { function shouldDump(id, direction) {
if (printIdBlacklist[id]) return false; if (matches(printIdBlacklist[id])) return false;
if (printAllIds) return true; if (printAllIds) return true;
if (printIdWhitelist[id]) return true; if (matches(printIdWhitelist[id])) return true;
return false; return false;
function matches(result) {
return result != null && result.indexOf(direction) !== -1;
}
} }