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EnigAssert() vs assert() and fix a logging issue

This commit is contained in:
Bryan Ashby 2017-07-30 14:31:16 -06:00
parent 84c0614dcd
commit 848b0f7cf6
1 changed files with 50 additions and 37 deletions
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87
core/servers/login/telnet.js
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@ -6,12 +6,12 @@ const baseClient = require('../../client.js');
const Log = require('../../logger.js').log;
const LoginServerModule = require('../../login_server_module.js');
const Config = require('../../config.js').config;
const EnigAssert = require('../../enigma_assert.js');
// deps
const net = require('net');
const buffers = require('buffers');
const binary = require('binary');
const assert = require('assert');
const util = require('util');
//var debug = require('debug')('telnet');
@ -228,10 +228,10 @@ OPTION_IMPLS[OPTIONS.TERMINAL_TYPE] = function(bufs, i, event) {
.word8('ttype')
.word8('is')
.tap(function(vars) {
assert(vars.iac1 === COMMANDS.IAC);
assert(vars.sb === COMMANDS.SB);
assert(vars.ttype === OPTIONS.TERMINAL_TYPE);
assert(vars.is === SB_COMMANDS.IS);
EnigAssert(vars.iac1 === COMMANDS.IAC);
EnigAssert(vars.sb === COMMANDS.SB);
EnigAssert(vars.ttype === OPTIONS.TERMINAL_TYPE);
EnigAssert(vars.is === SB_COMMANDS.IS);
});
// eat up the rest
@ -279,11 +279,11 @@ OPTION_IMPLS[OPTIONS.WINDOW_SIZE] = function(bufs, i, event) {
.word8('iac2')
.word8('se')
.tap(function(vars) {
assert(vars.iac1 == COMMANDS.IAC);
assert(vars.sb == COMMANDS.SB);
assert(vars.naws == OPTIONS.WINDOW_SIZE);
assert(vars.iac2 == COMMANDS.IAC);
assert(vars.se == COMMANDS.SE);
EnigAssert(vars.iac1 == COMMANDS.IAC);
EnigAssert(vars.sb == COMMANDS.SB);
EnigAssert(vars.naws == OPTIONS.WINDOW_SIZE);
EnigAssert(vars.iac2 == COMMANDS.IAC);
EnigAssert(vars.se == COMMANDS.SE);
event.cols = event.columns = event.width = vars.width;
event.rows = event.height = vars.height;
@ -326,10 +326,10 @@ OPTION_IMPLS[OPTIONS.NEW_ENVIRONMENT] = function(bufs, i, event) {
.word8('newEnv')
.word8('isOrInfo') // initial=IS, updates=INFO
.tap(function(vars) {
assert(vars.iac1 === COMMANDS.IAC);
assert(vars.sb === COMMANDS.SB);
assert(vars.newEnv === OPTIONS.NEW_ENVIRONMENT || vars.newEnv === OPTIONS.NEW_ENVIRONMENT_DEP);
assert(vars.isOrInfo === SB_COMMANDS.IS || vars.isOrInfo === SB_COMMANDS.INFO);
EnigAssert(vars.iac1 === COMMANDS.IAC);
EnigAssert(vars.sb === COMMANDS.SB);
EnigAssert(vars.newEnv === OPTIONS.NEW_ENVIRONMENT || vars.newEnv === OPTIONS.NEW_ENVIRONMENT_DEP);
EnigAssert(vars.isOrInfo === SB_COMMANDS.IS || vars.isOrInfo === SB_COMMANDS.INFO);
event.type = vars.isOrInfo;
@ -398,8 +398,8 @@ OPTION_IMPLS[OPTIONS.NEW_ENVIRONMENT] = function(bufs, i, event) {
const MORE_DATA_REQUIRED = 0xfeedface;
function parseBufs(bufs) {
assert(bufs.length >= 2);
assert(bufs.get(0) === COMMANDS.IAC);
EnigAssert(bufs.length >= 2);
EnigAssert(bufs.get(0) === COMMANDS.IAC);
return parseCommand(bufs, 1, {});
}
@ -472,7 +472,7 @@ function TelnetClient(input, output) {
break;
}
assert(bufs.length > (i + 1));
EnigAssert(bufs.length > (i + 1));
if(i > 0) {
self.emit('data', bufs.splice(0, i).toBuffer());
@ -511,15 +511,26 @@ function TelnetClient(input, output) {
});
this.input.on('error', err => {
self.log.debug( { err : err }, 'Socket error');
self.emit('end');
this.connectionDebug( { err : err }, 'Socket error' );
return self.emit('end');
});
this.connectionDebug = (info, msg) => {
this.connectionTrace = (info, msg) => {
if(Config.loginServers.telnet.traceConnections) {
self.log.trace(info, 'Telnet: ' + msg);
const logger = self.log || Log;
return logger.trace(info, `Telnet: ${msg}`);
}
};
this.connectionDebug = (info, msg) => {
const logger = self.log || Log;
return logger.debug(info, `Telnet: ${msg}`);
};
this.connectionWarn = (info, msg) => {
const logger = self.log || Log;
return logger.warn(info, `Telnet: ${msg}`);
};
}
util.inherits(TelnetClient, baseClient.Client);
@ -553,7 +564,7 @@ TelnetClient.prototype.handleWillCommand = function(evt) {
this.requestNewEnvironment();
} else {
// :TODO: temporary:
this.connectionDebug(evt, 'WILL');
this.connectionTrace(evt, 'WILL');
}
};
@ -561,7 +572,7 @@ TelnetClient.prototype.handleWontCommand = function(evt) {
if('new environment' === evt.option) {
this.dont.new_environment();
} else {
this.connectionDebug(evt, 'WONT');
this.connectionTrace(evt, 'WONT');
}
};
@ -580,12 +591,12 @@ TelnetClient.prototype.handleDoCommand = function(evt) {
this.wont.encrypt();
} else {
// :TODO: temporary:
this.connectionDebug(evt, 'DO');
this.connectionTrace(evt, 'DO');
}
};
TelnetClient.prototype.handleDontCommand = function(evt) {
this.connectionDebug(evt, 'DONT');
this.connectionTrace(evt, 'DONT');
};
TelnetClient.prototype.handleSbCommand = function(evt) {
@ -619,24 +630,26 @@ TelnetClient.prototype.handleSbCommand = function(evt) {
} else if('COLUMNS' === name && 0 === self.term.termWidth) {
self.term.termWidth = parseInt(evt.envVars[name]);
self.clearMciCache(); // term size changes = invalidate cache
self.log.debug({ termWidth : self.term.termWidth, source : 'NEW-ENVIRON'}, 'Window width updated');
self.connectionDebug({ termWidth : self.term.termWidth, source : 'NEW-ENVIRON'}, 'Window width updated');
} else if('ROWS' === name && 0 === self.term.termHeight) {
self.term.termHeight = parseInt(evt.envVars[name]);
self.clearMciCache(); // term size changes = invalidate cache
self.log.debug({ termHeight : self.term.termHeight, source : 'NEW-ENVIRON'}, 'Window height updated');
self.connectionDebug({ termHeight : self.term.termHeight, source : 'NEW-ENVIRON'}, 'Window height updated');
} else {
if(name in self.term.env) {
assert(
SB_COMMANDS.INFO === evt.type || SB_COMMANDS.IS === evt.type,
'Unexpected type: ' + evt.type);
self.log.warn(
EnigAssert(
SB_COMMANDS.INFO === evt.type || SB_COMMANDS.IS === evt.type,
'Unexpected type: ' + evt.type
);
self.connectionWarn(
{ varName : name, value : evt.envVars[name], existingValue : self.term.env[name] },
'Environment variable already exists');
'Environment variable already exists'
);
} else {
self.term.env[name] = evt.envVars[name];
self.log.debug(
{ varName : name, value : evt.envVars[name] }, 'New environment variable');
self.connectionDebug( { varName : name, value : evt.envVars[name] }, 'New environment variable' );
}
}
});
@ -659,9 +672,9 @@ TelnetClient.prototype.handleSbCommand = function(evt) {
self.clearMciCache(); // term size changes = invalidate cache
self.log.debug({ termWidth : evt.width , termHeight : evt.height, source : 'NAWS' }, 'Window size updated');
self.connectionDebug({ termWidth : evt.width , termHeight : evt.height, source : 'NAWS' }, 'Window size updated');
} else {
self.log(evt, 'SB');
self.connectionDebug(evt, 'SB');
}
};
@ -672,7 +685,7 @@ const IGNORED_COMMANDS = [];
TelnetClient.prototype.handleMiscCommand = function(evt) {
assert(evt.command !== 'undefined' && evt.command.length > 0);
EnigAssert(evt.command !== 'undefined' && evt.command.length > 0);
//
// See: