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MeshCentral/agents/modules_meshcore/duktape-debugger.jsx

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Updated Windows/OSX agent.
2018-11-26 20:12:27 -05:00
/*
*
* ===============
* Duktape license
* ===============
*
* (http://opensource.org/licenses/MIT)
*
* Copyright (c) 2013-2017 by Duktape authors (see AUTHORS.rst)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
/* AUTHORS.rst */
/*
* ===============
* Duktape authors
* ===============
*
* Copyright
* =========
*
* Duktape copyrights are held by its authors. Each author has a copyright
* to their contribution, and agrees to irrevocably license the contribution
* under the Duktape ``LICENSE.txt``.
*
* Authors
* =======
*
* Please include an e-mail address, a link to your GitHub profile, or something
* similar to allow your contribution to be identified accurately.
*
* The following people have contributed code, website contents, or Wiki contents,
* and agreed to irrevocably license their contributions under the Duktape
* ``LICENSE.txt`` (in order of appearance):
*
* * Sami Vaarala <sami.vaarala@iki.fi>
* * Niki Dobrev
* * Andreas \u00d6man <andreas@lonelycoder.com>
* * L\u00e1szl\u00f3 Lang\u00f3 <llango.u-szeged@partner.samsung.com>
* * Legimet <legimet.calc@gmail.com>
* * Karl Skomski <karl@skomski.com>
* * Bruce Pascoe <fatcerberus1@gmail.com>
* * Ren\u00e9 Hollander <rene@rene8888.at>
* * Julien Hamaide (https://github.com/crazyjul)
* * Sebastian G\u00f6tte (https://github.com/jaseg)
* * Tomasz Magulski (https://github.com/magul)
* * \D. Bohdan (https://github.com/dbohdan)
* * Ond\u0159ej Jirman (https://github.com/megous)
* * Sa\u00fal Ibarra Corretg\u00e9 <saghul@gmail.com>
* * Jeremy HU <huxingyi@msn.com>
* * Ole Andr\u00e9 Vadla Ravn\u00e5s (https://github.com/oleavr)
* * Harold Brenes (https://github.com/harold-b)
* * Oliver Crow (https://github.com/ocrow)
* * Jakub Ch\u0142api\u0144ski (https://github.com/jchlapinski)
* * Brett Vickers (https://github.com/beevik)
* * Dominik Okwieka (https://github.com/okitec)
* * Remko Tron\u00e7on (https://el-tramo.be)
* * Romero Malaquias (rbsm@ic.ufal.br)
* * Michael Drake <michael.drake@codethink.co.uk>
* * Steven Don (https://github.com/shdon)
* * Simon Stone (https://github.com/sstone1)
* * \J. McC. (https://github.com/jmhmccr)
*
* Other contributions
* ===================
*
* The following people have contributed something other than code (e.g. reported
* bugs, provided ideas, etc; roughly in order of appearance):
*
* * Greg Burns
* * Anthony Rabine
* * Carlos Costa
* * Aur\u00e9lien Bouilland
* * Preet Desai (Pris Matic)
* * judofyr (http://www.reddit.com/user/judofyr)
* * Jason Woofenden
* * Micha\u0142 Przyby\u015b
* * Anthony Howe
* * Conrad Pankoff
* * Jim Schimpf
* * Rajaran Gaunker (https://github.com/zimbabao)
* * Andreas \u00d6man
* * Doug Sanden
* * Josh Engebretson (https://github.com/JoshEngebretson)
* * Remo Eichenberger (https://github.com/remoe)
* * Mamod Mehyar (https://github.com/mamod)
* * David Demelier (https://github.com/markand)
* * Tim Caswell (https://github.com/creationix)
* * Mitchell Blank Jr (https://github.com/mitchblank)
* * https://github.com/yushli
* * Seo Sanghyeon (https://github.com/sanxiyn)
* * Han ChoongWoo (https://github.com/tunz)
* * Joshua Peek (https://github.com/josh)
* * Bruce E. Pascoe (https://github.com/fatcerberus)
* * https://github.com/Kelledin
* * https://github.com/sstruchtrup
* * Michael Drake (https://github.com/tlsa)
* * https://github.com/chris-y
* * Laurent Zubiaur (https://github.com/lzubiaur)
* * Neil Kolban (https://github.com/nkolban)
*
* If you are accidentally missing from this list, send me an e-mail
* (``sami.vaarala@iki.fi``) and I'll fix the omission.
*
*
* =================================================================
* Modifications made by Bryan Roe, Copyright 2018 Intel Corporation
* =================================================================
*
*
*/
var events = require('events');
var Promise = require('promise');
var dbgHTML = '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
var optTargetHost = '127.0.0.1';
var optTargetPort = 9091;
var optHttpPort = 9092;
var optJsonProxyPort = 9093;
var optJsonProxy = false;
var optSourceSearchDirs = ['../tests/ecmascript'];
var optDumpDebugRead = null;
var optDumpDebugWrite = null;
var optDumpDebugPretty = null;
var optLogMessages = true;
// Marker objects for special protocol values
var DVAL_EOM = { type: 'eom' };
var DVAL_REQ = { type: 'req' };
var DVAL_REP = { type: 'rep' };
var DVAL_ERR = { type: 'err' };
var DVAL_NFY = { type: 'nfy' };
// Commands initiated by Duktape
var CMD_STATUS = 0x01;
var CMD_UNUSED_2 = 0x02; // Duktape 1.x: print notify
var CMD_UNUSED_3 = 0x03; // Duktape 1.x: alert notify
var CMD_UNUSED_4 = 0x04; // Duktape 1.x: log notify
var CMD_THROW = 0x05;
var CMD_DETACHING = 0x06;
var CMD_APPNOTIFY = 0x07;
// Commands initiated by the debug client (= us)
var CMD_BASICINFO = 0x10;
var CMD_TRIGGERSTATUS = 0x11;
var CMD_PAUSE = 0x12;
var CMD_RESUME = 0x13;
var CMD_STEPINTO = 0x14;
var CMD_STEPOVER = 0x15;
var CMD_STEPOUT = 0x16;
var CMD_LISTBREAK = 0x17;
var CMD_ADDBREAK = 0x18;
var CMD_DELBREAK = 0x19;
var CMD_GETVAR = 0x1a;
var CMD_PUTVAR = 0x1b;
var CMD_GETCALLSTACK = 0x1c;
var CMD_GETLOCALS = 0x1d;
var CMD_EVAL = 0x1e;
var CMD_DETACH = 0x1f;
var CMD_DUMPHEAP = 0x20;
var CMD_GETBYTECODE = 0x21;
// Constants
var UI_MESSAGE_CLIPLEN = 128;
var LOCALS_CLIPLEN = 64;
var EVAL_CLIPLEN = 4096;
var GETVAR_CLIPLEN = 4096;
var SUPPORTED_DEBUG_PROTOCOL_VERSION = 2;
var debugCommandNames = {};
debugCommandNames['0'] = 'Reserved_0';
debugCommandNames['1'] = 'Status';
debugCommandNames['2'] = 'Reserved_2';
debugCommandNames['3'] = 'Reserved_3';
debugCommandNames['4'] = 'Reserved_4';
debugCommandNames['5'] = 'Throw';
debugCommandNames['6'] = 'Detaching';
debugCommandNames['7'] = 'AppNotify';
debugCommandNames['8'] = 'Reserved_8';
debugCommandNames['9'] = 'Reserved_9';
debugCommandNames['10'] = 'Reserved_10';
debugCommandNames['11'] = 'Reserved_11';
debugCommandNames['12'] = 'Reserved_12';
debugCommandNames['13'] = 'Reserved_13';
debugCommandNames['14'] = 'Reserved_14';
debugCommandNames['15'] = 'Reserved_15';
debugCommandNames['16'] = 'BasicInfo';
debugCommandNames['17'] = 'TriggerStatus';
debugCommandNames['18'] = 'Pause';
debugCommandNames['19'] = 'Resume';
debugCommandNames['20'] = 'StepInto';
debugCommandNames['21'] = 'StepOver';
debugCommandNames['22'] = 'StepOut';
debugCommandNames['23'] = 'ListBreak';
debugCommandNames['24'] = 'AddBreak';
debugCommandNames['25'] = 'DelBreak';
debugCommandNames['26'] = 'GetVar';
debugCommandNames['27'] = 'PutVar';
debugCommandNames['28'] = 'GetCallStack';
debugCommandNames['29'] = 'GetLocals';
debugCommandNames['30'] = 'Eval';
debugCommandNames['31'] = 'Detach';
debugCommandNames['32'] = 'DumpHeap';
debugCommandNames['33'] = 'GetBytecode';
debugCommandNames['34'] = 'AppRequest';
debugCommandNames['35'] = 'GetHeapObjInfo';
debugCommandNames['36'] = 'GetObjPropDesc';
debugCommandNames['37'] = 'GetObjPropDescRange';
// Duktape heaphdr type constants, must match C headers
var DUK_HTYPE_STRING = 0;
var DUK_HTYPE_OBJECT = 1;
var DUK_HTYPE_BUFFER = 2;
/*
* Debugger output formatting
*/
function formatDebugValue(v) {
var buf, dec, len;
// See doc/debugger.rst for format description.
if (typeof v === 'object' && v !== null) {
// Note: typeof null === 'object', so null special case explicitly
if (v.type === 'eom') {
return new Buffer([0x00]);
} else if (v.type === 'req') {
return new Buffer([0x01]);
} else if (v.type === 'rep') {
return new Buffer([0x02]);
} else if (v.type === 'err') {
return new Buffer([0x03]);
} else if (v.type === 'nfy') {
return new Buffer([0x04]);
} else if (v.type === 'unused') {
return new Buffer([0x15]);
} else if (v.type === 'undefined') {
return new Buffer([0x16]);
} else if (v.type === 'number') {
dec = new Buffer(v.data, 'hex');
len = dec.length;
if (len !== 8) {
throw new TypeError('value cannot be converted to dvalue: ' + JSON.stringify(v));
}
buf = Buffer.alloc(1 + len);
buf[0] = 0x1a;
dec.copy(buf, 1);
return buf;
} else if (v.type === 'buffer') {
dec = new Buffer(v.data, 'hex');
len = dec.length;
if (len <= 0xffff) {
buf = Buffer.alloc(3 + len);
buf[0] = 0x14;
buf[1] = (len >> 8) & 0xff;
buf[2] = (len >> 0) & 0xff;
dec.copy(buf, 3);
return buf;
} else {
buf = Buffer.alloc(5 + len);
buf[0] = 0x13;
buf[1] = (len >> 24) & 0xff;
buf[2] = (len >> 16) & 0xff;
buf[3] = (len >> 8) & 0xff;
buf[4] = (len >> 0) & 0xff;
dec.copy(buf, 5);
return buf;
}
} else if (v.type === 'object') {
dec = new Buffer(v.pointer, 'hex');
len = dec.length;
buf = Buffer.alloc(3 + len);
buf[0] = 0x1b;
buf[1] = v.class;
buf[2] = len;
dec.copy(buf, 3);
return buf;
} else if (v.type === 'pointer') {
dec = new Buffer(v.pointer, 'hex');
len = dec.length;
buf = Buffer.alloc(2 + len);
buf[0] = 0x1c;
buf[1] = len;
dec.copy(buf, 2);
return buf;
} else if (v.type === 'lightfunc') {
dec = new Buffer(v.pointer, 'hex');
len = dec.length;
buf = Buffer.alloc(4 + len);
buf[0] = 0x1d;
buf[1] = (v.flags >> 8) & 0xff;
buf[2] = v.flags & 0xff;
buf[3] = len;
dec.copy(buf, 4);
return buf;
} else if (v.type === 'heapptr') {
dec = new Buffer(v.pointer, 'hex');
len = dec.length;
buf = Buffer.alloc(2 + len);
buf[0] = 0x1e;
buf[1] = len;
dec.copy(buf, 2);
return buf;
}
} else if (v === null) {
return new Buffer([0x17]);
} else if (typeof v === 'boolean') {
return new Buffer([v ? 0x18 : 0x19]);
} else if (typeof v === 'number') {
if (Math.floor(v) === v && /* whole */
(v !== 0 || 1 / v > 0) && /* not negative zero */
v >= -0x80000000 && v <= 0x7fffffff) {
// Represented signed 32-bit integers as plain integers.
// Debugger code expects this for all fields that are not
// duk_tval representations (e.g. command numbers and such).
if (v >= 0x00 && v <= 0x3f) {
return new Buffer([0x80 + v]);
} else if (v >= 0x0000 && v <= 0x3fff) {
return new Buffer([0xc0 + (v >> 8), v & 0xff]);
} else if (v >= -0x80000000 && v <= 0x7fffffff) {
return new Buffer([0x10,
(v >> 24) & 0xff,
(v >> 16) & 0xff,
(v >> 8) & 0xff,
(v >> 0) & 0xff]);
} else {
throw new Error('internal error when encoding integer to dvalue: ' + v);
}
} else {
// Represent non-integers as IEEE double dvalues
buf = Buffer.alloc(1 + 8);
buf[0] = 0x1a;
buf.writeDoubleBE(v, 1);
return buf;
}
} else if (typeof v === 'string') {
if (v.length < 0 || v.length > 0xffffffff) {
// Not possible in practice.
throw new TypeError('cannot convert to dvalue, invalid string length: ' + v.length);
}
if (v.length <= 0x1f) {
buf = Buffer.alloc(1 + v.length);
buf[0] = 0x60 + v.length;
writeDebugStringToBuffer(v, buf, 1);
return buf;
} else if (v.length <= 0xffff) {
buf = Buffer.alloc(3 + v.length);
buf[0] = 0x12;
buf[1] = (v.length >> 8) & 0xff;
buf[2] = (v.length >> 0) & 0xff;
writeDebugStringToBuffer(v, buf, 3);
return buf;
} else {
buf = Buffer.alloc(5 + v.length);
buf[0] = 0x11;
buf[1] = (v.length >> 24) & 0xff;
buf[2] = (v.length >> 16) & 0xff;
buf[3] = (v.length >> 8) & 0xff;
buf[4] = (v.length >> 0) & 0xff;
writeDebugStringToBuffer(v, buf, 5);
return buf;
}
}
// Shouldn't come here.
throw new TypeError('value cannot be converted to dvalue: ' + JSON.stringify(v));
}
function DebugProtocolParser(inputStream,
protocolVersion,
rawDumpFileName,
textDumpFileName,
textDumpFilePrefix,
hexDumpConsolePrefix,
textDumpConsolePrefix)
{
var _this = this;
this._ObjectID = 'DebugProtocolParser';
this.inputStream = inputStream;
this.closed = false; // stream is closed/broken, don't parse anymore
this.bytes = 0;
this.dvalues = 0;
this.messages = 0;
this.requests = 0;
this.prevBytes = 0;
this.bytesPerSec = 0;
this.statsTimer = null;
this.readableNumberValue = true;
events.EventEmitter.call(this);
var buf = Buffer.alloc(0); // accumulate data
var msg = []; // accumulated message until EOM
var versionIdentification;
var statsInterval = 2000;
var statsIntervalSec = statsInterval / 1000;
this.statsTimer = setInterval(function () {
_this.bytesPerSec = (_this.bytes - _this.prevBytes) / statsIntervalSec;
_this.prevBytes = _this.bytes;
_this.emit('stats-update');
}, statsInterval);
function consume(n) {
var tmp = Buffer.alloc(buf.length - n);
buf.copy(tmp, 0, n);
buf = tmp;
}
inputStream.on('data', function (data) {
var i, n, x, v, gotValue, len, t, tmpbuf, verstr;
var prettyMsg;
if (_this.closed || !_this.inputStream)
{
console.error('Ignoring incoming data from closed input stream, len ' + data.length);
return;
}
_this.bytes += data.length;
if (rawDumpFileName) {
fs.appendFileSync(rawDumpFileName, data);
}
if (hexDumpConsolePrefix) {
console.info1(hexDumpConsolePrefix + data.toString('hex'));
}
buf = Buffer.concat([buf, data]);
// Protocol version handling. When dumping an output stream, the
// caller gives a non-null protocolVersion so we don't read one here.
if (protocolVersion == null) {
if (buf.length > 1024) {
_this.emit('transport-error', 'Parse error (version identification too long), dropping connection');
_this.close();
return;
}
for (i = 0, n = buf.length; i < n; i++)
{
if (buf[i] == 0x0a)
{
tmpbuf = Buffer.alloc(i);
buf.copy(tmpbuf, 0, 0, i);
consume(i + 1);
verstr = tmpbuf.toString();
t = verstr.split(' ');
protocolVersion = Number(t[0]);
versionIdentification = verstr;
_this.emit('protocol-version', {
protocolVersion: protocolVersion,
versionIdentification: versionIdentification
});
break;
}
}
if (protocolVersion == null)
{
// Still waiting for version identification to complete.
return;
}
}
// Parse complete dvalues (quite inefficient now) by trial parsing.
// Consume a value only when it's fully present in 'buf'.
// See doc/debugger.rst for format description.
while (buf.length > 0) {
x = buf[0];
v = undefined;
gotValue = false; // used to flag special values like undefined
if (x >= 0xc0) {
// 0xc0...0xff: integers 0-16383
if (buf.length >= 2) {
v = ((x - 0xc0) << 8) + buf[1];
consume(2);
}
} else if (x >= 0x80) {
// 0x80...0xbf: integers 0-63
v = x - 0x80;
consume(1);
} else if (x >= 0x60) {
// 0x60...0x7f: strings with length 0-31
len = x - 0x60;
if (buf.length >= 1 + len) {
v = Buffer.alloc(len);
buf.copy(v, 0, 1, 1 + len);
v = bufferToDebugString(v);
consume(1 + len);
}
} else {
switch (x) {
case 0x00: v = DVAL_EOM; consume(1); break;
case 0x01: v = DVAL_REQ; consume(1); break;
case 0x02: v = DVAL_REP; consume(1); break;
case 0x03: v = DVAL_ERR; consume(1); break;
case 0x04: v = DVAL_NFY; consume(1); break;
case 0x10: // 4-byte signed integer
if (buf.length >= 5) {
v = buf.readInt32BE(1);
consume(5);
}
break;
case 0x11: // 4-byte string
if (buf.length >= 5) {
len = buf.readUInt32BE(1);
if (buf.length >= 5 + len) {
v = Buffer.alloc(len);
buf.copy(v, 0, 5, 5 + len);
v = bufferToDebugString(v);
consume(5 + len);
}
}
break;
case 0x12: // 2-byte string
if (buf.length >= 3) {
len = buf.readUInt16BE(1);
if (buf.length >= 3 + len) {
v = Buffer.alloc(len);
buf.copy(v, 0, 3, 3 + len);
v = bufferToDebugString(v);
consume(3 + len);
}
}
break;
case 0x13: // 4-byte buffer
if (buf.length >= 5) {
len = buf.readUInt32BE(1);
if (buf.length >= 5 + len) {
v = Buffer.alloc(len);
buf.copy(v, 0, 5, 5 + len);
v = { type: 'buffer', data: v.toString('hex') };
consume(5 + len);
// Value could be a Node.js buffer directly, but
// we prefer all dvalues to be JSON compatible
}
}
break;
case 0x14: // 2-byte buffer
if (buf.length >= 3) {
len = buf.readUInt16BE(1);
if (buf.length >= 3 + len) {
v = Buffer.alloc(len);
buf.copy(v, 0, 3, 3 + len);
v = { type: 'buffer', data: v.toString('hex') };
consume(3 + len);
// Value could be a Node.js buffer directly, but
// we prefer all dvalues to be JSON compatible
}
}
break;
case 0x15: // unused/none
v = { type: 'unused' };
consume(1);
break;
case 0x16: // undefined
v = { type: 'undefined' };
gotValue = true; // indicate 'v' is actually set
consume(1);
break;
case 0x17: // null
v = null;
gotValue = true; // indicate 'v' is actually set
consume(1);
break;
case 0x18: // true
v = true;
consume(1);
break;
case 0x19: // false
v = false;
consume(1);
break;
case 0x1a: // number (IEEE double), big endian
if (buf.length >= 9) {
v = Buffer.alloc(8);
buf.copy(v, 0, 1, 9);
v = { type: 'number', data: v.toString('hex') };
if (_this.readableNumberValue) {
// The value key should not be used programmatically,
// it is just there to make the dumps more readable.
v.value = buf.readDoubleBE(1);
}
consume(9);
}
break;
case 0x1b: // object
if (buf.length >= 3) {
len = buf[2];
if (buf.length >= 3 + len) {
v = Buffer.alloc(len);
buf.copy(v, 0, 3, 3 + len);
v = { type: 'object', 'class': buf[1], pointer: v.toString('hex') };
consume(3 + len);
}
}
break;
case 0x1c: // pointer
if (buf.length >= 2) {
len = buf[1];
if (buf.length >= 2 + len) {
v = Buffer.alloc(len);
buf.copy(v, 0, 2, 2 + len);
v = { type: 'pointer', pointer: v.toString('hex') };
consume(2 + len);
}
}
break;
case 0x1d: // lightfunc
if (buf.length >= 4) {
len = buf[3];
if (buf.length >= 4 + len) {
v = Buffer.alloc(len);
buf.copy(v, 0, 4, 4 + len);
v = { type: 'lightfunc', flags: buf.readUInt16BE(1), pointer: v.toString('hex') };
consume(4 + len);
}
}
break;
case 0x1e: // heapptr
if (buf.length >= 2) {
len = buf[1];
if (buf.length >= 2 + len) {
v = Buffer.alloc(len);
buf.copy(v, 0, 2, 2 + len);
v = { type: 'heapptr', pointer: v.toString('hex') };
consume(2 + len);
}
}
break;
default:
_this.emit('transport-error', 'Parse error, dropping connection');
_this.close();
}
}
if (typeof v === 'undefined' && !gotValue) {
break;
}
msg.push(v);
_this.dvalues++;
// Could emit a 'debug-value' event here, but that's not necessary
// because the receiver will just collect statistics which can also
// be done using the finished message.
if (v === DVAL_EOM)
{
_this.messages++;
if (textDumpFileName || textDumpConsolePrefix) {
prettyMsg = prettyDebugMessage(msg);
if (textDumpFileName) {
fs.appendFileSync(textDumpFileName, (textDumpFilePrefix || '') + prettyMsg + '\n');
}
if (textDumpConsolePrefix) {
console.info1(textDumpConsolePrefix + prettyMsg);
}
}
_this.emit('debug-message', msg);
msg = []; // new object, old may be in circulation for a while
}
}
});
// Not all streams will emit this.
inputStream.on('error', function (err) {
_this.emit('transport-error', err);
_this.close();
});
// Not all streams will emit this.
inputStream.on('close', function () {
_this.close();
});
}
DebugProtocolParser.prototype.close = function () {
// Although the underlying transport may not have a close() or destroy()
// method or even a 'close' event, this method is always available and
// will generate a 'transport-close'.
//
// The caller is responsible for closing the underlying stream if that
// is necessary.
if (this.closed) { return; }
this.closed = true;
if (this.statsTimer) {
clearInterval(this.statsTimer);
this.statsTimer = null;
}
this.emit('transport-close');
};
/*
* Debugger implementation
*
* A debugger instance communicates with the debug target and maintains
* persistent debug state so that the current state can be resent to the
* socket.io client (web UI) if it reconnects. Whenever the debugger state
* is changed an event is generated. The socket.io handler will listen to
* state change events and push the necessary updates to the web UI, often
* in a rate limited fashion or using a client pull to ensure the web UI
* is not overloaded.
*
* The debugger instance assumes that if the debug protocol connection is
* re-established, it is always to the same target. There is no separate
* abstraction for a debugger session.
*/
function Debugger()
{
events.EventEmitter.call(this);
this._ObjectID = 'Debugger';
this.web = null; // web UI singleton
this.targetStream = null; // transport connection to target
this.outputPassThroughStream = null; // dummy passthrough for message dumping
this.inputParser = null; // parser for incoming debug messages
this.outputParser = null; // parser for outgoing debug messages (stats, dumping)
this.protocolVersion = null;
this.dukVersion = null;
this.dukGitDescribe = null;
this.targetInfo = null;
this.debugger_attached = false;
this.handshook = false;
this.reqQueue = null;
this.stats = { // stats for current debug connection
rxBytes: 0, rxDvalues: 0, rxMessages: 0, rxBytesPerSec: 0,
txBytes: 0, txDvalues: 0, txMessages: 0, txBytesPerSec: 0
};
this.execStatus = {
attached: false,
state: 'detached',
fileName: '',
funcName: '',
line: 0,
pc: 0
};
this.breakpoints = [];
this.callstack = [];
this.locals = [];
this.messageLines = [];
this.messageScrollBack = 100;
this.on('attached', function OnAttached()
{
this.websocket.write({ cmd: 'ATTACH' });
console.info1('Debug transport connected');
this.debugger_attached = true;
this.reqQueue = [];
this.uiMessage('debugger-info', 'Debug transport connected');
this.sendStatusRequest().then(function () { statusPending = false; console.info1('finally'); }, console.info1);
hostCooperate();
});
}
Debugger.prototype.decodeBytecodeFromBuffer = function (buf, consts, funcs)
{
var i, j, n, m, ins, pc;
var res = [];
var op, str, args, comments;
// XXX: add constants inline to preformatted output (e.g. for strings,
// add a short escaped snippet as a comment on the line after the
// compact argument list).
for (i = 0, n = buf.length; i < n; i += 4) {
pc = i / 4;
// shift forces unsigned
if (this.endianness === 'little') {
ins = buf.readInt32LE(i) >>> 0;
} else {
ins = buf.readInt32BE(i) >>> 0;
}
op = dukOpcodes.opcodes[ins & 0xff];
args = [];
comments = [];
if (op.args) {
for (j = 0, m = op.args.length; j < m; j++) {
var A = (ins >>> 8) & 0xff;
var B = (ins >>> 16) & 0xff;
var C = (ins >>> 24) & 0xff;
var BC = (ins >>> 16) & 0xffff;
var ABC = (ins >>> 8) & 0xffffff;
var Bconst = op & 0x01;
var Cconst = op & 0x02;
switch (op.args[j]) {
case 'A_R': args.push('r' + A); break;
case 'A_RI': args.push('r' + A + '(indirect)'); break;
case 'A_C': args.push('c' + A); break;
case 'A_H': args.push('0x' + A.toString(16)); break;
case 'A_I': args.push(A.toString(10)); break;
case 'A_B': args.push(A ? 'true' : 'false'); break;
case 'B_RC': args.push((Bconst ? 'c' : 'r') + B); break;
case 'B_R': args.push('r' + B); break;
case 'B_RI': args.push('r' + B + '(indirect)'); break;
case 'B_C': args.push('c' + B); break;
case 'B_H': args.push('0x' + B.toString(16)); break;
case 'B_I': args.push(B.toString(10)); break;
case 'C_RC': args.push((Cconst ? 'c' : 'r') + C); break;
case 'C_R': args.push('r' + C); break;
case 'C_RI': args.push('r' + C + '(indirect)'); break;
case 'C_C': args.push('c' + C); break;
case 'C_H': args.push('0x' + C.toString(16)); break;
case 'C_I': args.push(C.toString(10)); break;
case 'BC_R': args.push('r' + BC); break;
case 'BC_C': args.push('c' + BC); break;
case 'BC_H': args.push('0x' + BC.toString(16)); break;
case 'BC_I': args.push(BC.toString(10)); break;
case 'ABC_H': args.push(ABC.toString(16)); break;
case 'ABC_I': args.push(ABC.toString(10)); break;
case 'BC_LDINT': args.push(BC - (1 << 15)); break;
case 'BC_LDINTX': args.push(BC - 0); break; // no bias in LDINTX
case 'ABC_JUMP': {
var pc_add = ABC - (1 << 23) + 1; // pc is preincremented before adding
var pc_dst = pc + pc_add;
args.push(pc_dst + ' (' + (pc_add >= 0 ? '+' : '') + pc_add + ')');
break;
}
default: args.push('?'); break;
}
}
}
if (op.flags) {
for (j = 0, m = op.flags.length; j < m; j++) {
if (ins & op.flags[j].mask) {
comments.push(op.flags[j].name);
}
}
}
if (args.length > 0) {
str = sprintf('%05d %08x %-10s %s', pc, ins, op.name, args.join(', '));
} else {
str = sprintf('%05d %08x %-10s', pc, ins, op.name);
}
if (comments.length > 0) {
str = sprintf('%-44s ; %s', str, comments.join(', '));
}
res.push({
str: str,
ins: ins
});
}
return res;
};
Debugger.prototype.uiMessage = function (type, val)
{
var msg;
if (typeof type === 'object') {
msg = type;
} else if (typeof type === 'string') {
msg = { type: type, message: val };
} else {
throw new TypeError('invalid ui message: ' + type);
}
this.messageLines.push(msg);
while (this.messageLines.length > this.messageScrollBack) {
this.messageLines.shift();
}
this.emit('ui-message-update'); // just trigger a sync, gets rate limited
};
Debugger.prototype.sendRequest = function (msg)
{
var _this = this;
return new Promise(function (resolve, reject) {
var dvals = [];
var dval;
var data;
var i;
if (!_this.debugger_attached || !_this.handshook || !_this.reqQueue || !_this.targetStream)
{
console.error(_this.debugger_attached, _this.handshook, _this.reqQueue);
throw new Error('invalid state for sendRequest');
}
for (i = 0; i < msg.length; i++) {
try {
dval = formatDebugValue(msg[i]);
} catch (e) {
console.error('Failed to format dvalue, dropping connection: ' + e);
console.error(e.stack || e);
_this.targetStream.destroy();
throw new Error('failed to format dvalue');
}
dvals.push(dval);
}
data = Buffer.concat(dvals);
//console.log('Writing: ' + data.toString('hex'));
_this.targetStream.write(data);
if (_this.outputPassThroughStream) { _this.outputPassThroughStream.write(data); } // stats and dumping
if (optLogMessages) {
console.info1('Request ' + prettyDebugCommand(msg[1]) + ': ' + prettyDebugMessage(msg));
}
if (!_this.reqQueue) {
throw new Error('no reqQueue');
}
_this.reqQueue.push({
reqMsg: msg,
reqCmd: msg[1],
resolveCb: resolve,
rejectCb: reject
});
});
};
Debugger.prototype.sendBasicInfoRequest = function () {
var _this = this;
return this.sendRequest([DVAL_REQ, CMD_BASICINFO, DVAL_EOM]).then(function (msg) {
_this.dukVersion = msg[1];
_this.dukGitDescribe = msg[2];
_this.targetInfo = msg[3];
_this.endianness = { 1: 'little', 2: 'mixed', 3: 'big' }[msg[4]] || 'unknown';
_this.emit('basic-info-update');
return msg;
});
};
Debugger.prototype.sendGetVarRequest = function (varname, level) {
var _this = this;
return this.sendRequest([DVAL_REQ, CMD_GETVAR, (typeof level === 'number' ? level : -1), varname, DVAL_EOM]).then(function (msg) {
return { found: msg[1] === 1, value: msg[2] };
});
};
Debugger.prototype.sendPutVarRequest = function (varname, varvalue, level) {
var _this = this;
return this.sendRequest([DVAL_REQ, CMD_PUTVAR, (typeof level === 'number' ? level : -1), varname, varvalue, DVAL_EOM]);
};
Debugger.prototype.sendInvalidCommandTestRequest = function () {
// Intentional invalid command
var _this = this;
return this.sendRequest([DVAL_REQ, 0xdeadbeef, DVAL_EOM]);
};
Debugger.prototype.sendStatusRequest = function () {
// Send a status request to trigger a status notify, result is ignored:
// target sends a status notify instead of a meaningful reply
//console.log('this', this.sendRequest);
return (this.sendRequest([DVAL_REQ, CMD_TRIGGERSTATUS, DVAL_EOM]));
};
Debugger.prototype.sendBreakpointListRequest = function () {
var _this = this;
return this.sendRequest([DVAL_REQ, CMD_LISTBREAK, DVAL_EOM]).then(function (msg) {
var i, n;
var breakpts = [];
for (i = 1, n = msg.length - 1; i < n; i += 2) {
breakpts.push({ fileName: msg[i], lineNumber: msg[i + 1] });
}
_this.breakpoints = breakpts;
_this.emit('breakpoints-update', breakpts);
return msg;
});
};
Debugger.prototype.sendGetLocalsRequest = function (level) {
var _this = this;
return this.sendRequest([DVAL_REQ, CMD_GETLOCALS, (typeof level === 'number' ? level : -1), DVAL_EOM]).then(function (msg) {
var i;
var locals = [];
for (i = 1; i <= msg.length - 2; i += 2)
{
// XXX: do pretty printing in debug client for now
locals.push({ key: msg[i], value: prettyUiDebugValue(msg[i + 1], LOCALS_CLIPLEN), type: (msg[i+1]?msg[i+1].type:'undefined') });
}
_this.locals = locals;
_this.emit('locals-update');
return locals;
});
};
Debugger.prototype.sendGetCallStackRequest = function () {
var _this = this;
return this.sendRequest([DVAL_REQ, CMD_GETCALLSTACK, DVAL_EOM]).then(function (msg) {
var i;
var stack = [];
for (i = 1; i + 3 <= msg.length - 1; i += 4)
{
stack.push({
fileName: msg[i],
funcName: msg[i + 1],
lineNumber: msg[i + 2],
pc: msg[i + 3]
});
}
_this.callstack = stack;
_this.emit('callstack-update');
return msg;
});
};
Debugger.prototype.sendStepIntoRequest = function () {
var _this = this;
return this.sendRequest([DVAL_REQ, CMD_STEPINTO, DVAL_EOM]);
};
Debugger.prototype.sendStepOverRequest = function () {
var _this = this;
return this.sendRequest([DVAL_REQ, CMD_STEPOVER, DVAL_EOM]);
};
Debugger.prototype.sendStepOutRequest = function () {
var _this = this;
return this.sendRequest([DVAL_REQ, CMD_STEPOUT, DVAL_EOM]);
};
Debugger.prototype.sendPauseRequest = function () {
var _this = this;
return this.sendRequest([DVAL_REQ, CMD_PAUSE, DVAL_EOM]);
};
Debugger.prototype.sendResumeRequest = function () {
var _this = this;
return this.sendRequest([DVAL_REQ, CMD_RESUME, DVAL_EOM]);
};
Debugger.prototype.sendEvalRequest = function (evalInput, level) {
var _this = this;
// Use explicit level if given. If no level is given, use null if the call
// stack is empty, -1 otherwise. This works well when we're paused and the
// callstack information is not liable to change before we do an Eval.
console.info1('levelType = ' + typeof (level));
if (typeof level !== 'number') {
level = this.callstack && this.callstack.length > 0 ? -1 : null;
}
console.info1('level=' + level);
return this.sendRequest([DVAL_REQ, CMD_EVAL, level, evalInput, DVAL_EOM]).then(function (msg) {
return { error: msg[1] === 1 /*error*/, value: msg[2] };
});
};
Debugger.prototype.sendDetachRequest = function () {
var _this = this;
return this.sendRequest([DVAL_REQ, CMD_DETACH, DVAL_EOM]);
};
Debugger.prototype.sendDumpHeapRequest = function () {
var _this = this;
return this.sendRequest([DVAL_REQ, CMD_DUMPHEAP, DVAL_EOM]).then(function (msg) {
var res = {};
var objs = [];
var i, j, n, m, o, prop;
res.type = 'heapDump';
res.heapObjects = objs;
for (i = 1, n = msg.length - 1; i < n; /*nop*/) {
o = {};
o.ptr = msg[i++];
o.type = msg[i++];
o.flags = msg[i++] >>> 0; /* unsigned */
o.refc = msg[i++];
if (o.type === DUK_HTYPE_STRING) {
o.blen = msg[i++];
o.clen = msg[i++];
o.hash = msg[i++] >>> 0; /* unsigned */
o.data = msg[i++];
} else if (o.type === DUK_HTYPE_BUFFER) {
o.len = msg[i++];
o.data = msg[i++];
} else if (o.type === DUK_HTYPE_OBJECT) {
o['class'] = msg[i++];
o.proto = msg[i++];
o.esize = msg[i++];
o.enext = msg[i++];
o.asize = msg[i++];
o.hsize = msg[i++];
o.props = [];
for (j = 0, m = o.enext; j < m; j++) {
prop = {};
prop.flags = msg[i++];
prop.key = msg[i++];
prop.accessor = (msg[i++] == 1);
if (prop.accessor) {
prop.getter = msg[i++];
prop.setter = msg[i++];
} else {
prop.value = msg[i++];
}
o.props.push(prop);
}
o.array = [];
for (j = 0, m = o.asize; j < m; j++) {
prop = {};
prop.value = msg[i++];
o.array.push(prop);
}
} else {
console.error('invalid htype: ' + o.type + ', disconnect');
_this.disconnectDebugger();
throw new Error('invalid htype');
return;
}
objs.push(o);
}
return res;
});
};
Debugger.prototype.sendGetBytecodeRequest = function () {
var _this = this;
return this.sendRequest([DVAL_REQ, CMD_GETBYTECODE, -1 /* level; could be other than -1 too */, DVAL_EOM]).then(function (msg) {
var idx = 1;
var nconst;
var nfunc;
var val;
var buf;
var i, n;
var consts = [];
var funcs = [];
var bcode;
var preformatted;
var ret;
var idxPreformattedInstructions;
//console.log(JSON.stringify(msg));
nconst = msg[idx++];
for (i = 0; i < nconst; i++) {
val = msg[idx++];
consts.push(val);
}
nfunc = msg[idx++];
for (i = 0; i < nfunc; i++) {
val = msg[idx++];
funcs.push(val);
}
val = msg[idx++];
// Right now bytecode is a string containing a direct dump of the
// bytecode in target endianness. Decode here so that the web UI
// doesn't need to.
buf = Buffer.alloc(val.length);
writeDebugStringToBuffer(val, buf, 0);
bcode = _this.decodeBytecodeFromBuffer(buf, consts, funcs);
preformatted = [];
consts.forEach(function (v, i) {
preformatted.push('; c' + i + ' ' + JSON.stringify(v));
});
preformatted.push('');
idxPreformattedInstructions = preformatted.length;
bcode.forEach(function (v) {
preformatted.push(v.str);
});
preformatted = preformatted.join('\n') + '\n';
ret = {
constants: consts,
functions: funcs,
bytecode: bcode,
preformatted: preformatted,
idxPreformattedInstructions: idxPreformattedInstructions
};
return ret;
});
};
Debugger.prototype.changeBreakpoint = function (fileName, lineNumber, mode) {
var _this = this;
return this.sendRequest([DVAL_REQ, CMD_LISTBREAK, DVAL_EOM]).then(function (msg) {
var i, n;
var breakpts = [];
var deleted = false;
// Up-to-date list of breakpoints on target
for (i = 1, n = msg.length - 1; i < n; i += 2) {
breakpts.push({ fileName: msg[i], lineNumber: msg[i + 1] });
}
// Delete matching breakpoints in reverse order so that indices
// remain valid. We do this for all operations so that duplicates
// are eliminated if present.
for (i = breakpts.length - 1; i >= 0; i--) {
var bp = breakpts[i];
if (mode === 'deleteall' || (bp.fileName === fileName && bp.lineNumber === lineNumber))
{
deleted = true;
_this.sendRequest([DVAL_REQ, CMD_DELBREAK, i, DVAL_EOM], function (msg)
{
// nop
}, function (err) {
// nop
});
}
}
// Technically we should wait for each delbreak reply but because
// target processes the requests in order, it doesn't matter.
if ((mode === 'add') || (mode === 'toggle' && !deleted)) {
_this.sendRequest([DVAL_REQ, CMD_ADDBREAK, fileName, lineNumber, DVAL_EOM], function (msg)
{
// nop
}, function (err) {
_this.uiMessage('debugger-info', 'Failed to add breakpoint: ' + err);
});
}
// Read final, effective breakpoints from the target
_this.sendBreakpointListRequest();
hostCooperate();
});
};
Debugger.prototype.disconnectDebugger = function ()
{
console.info1('Debugger.disconnectDebugger();');
if (this.targetStream)
{
// We require a destroy() method from the actual target stream
this.targetStream.end();
this.targetStream = null;
}
if (this.inputParser) {
this.inputParser.close();
this.inputParser = null;
}
if (this.outputPassThroughStream) {
// There is no close() or destroy() for a passthrough stream, so just
// close the outputParser which will cancel timers etc.
}
if (this.outputParser) {
this.outputParser.close();
this.outputParser = null;
}
console.info1('disconnecting');
this.debugger_attached = false;
this.handshook = false;
this.reqQueue = null;
this.execStatus = {
attached: false,
state: 'detached',
fileName: '',
funcName: '',
line: 0,
pc: 0
};
};
Debugger.prototype.connectDebugger = function connectDebugger()
{
var _this = this;
this.disconnectDebugger(); // close previous target connection
// CUSTOMTRANSPORT: to use a custom transport, change this.targetStream to
// use your custom transport.
console.info1('Connecting to ' + optTargetHost + ':' + optTargetPort + '...');
this.targetStream = require('net').createConnection(optTargetPort, optTargetHost);
this.targetStream.Debugger = this;
this.targetStream.on('connect', function OnDebugConnect()
{
console.info1('Debugger Transport Connection Attached...');
hostCooperate();
});
//this.targetStream.on('data', function (msg) { console.log('recv');});
try
{
this.inputParser = new DebugProtocolParser(
this.targetStream,
null,
optDumpDebugRead,
optDumpDebugPretty,
optDumpDebugPretty ? 'Recv: ' : null,
null,
null // console logging is done at a higher level to match request/response
);
}
catch(ee)
{
console.error(ee);
}
//// Use a PassThrough stream to debug dump and get stats for output messages.
//// Simply write outgoing data to both the targetStream and this passthrough
//// separately.
//this.outputPassThroughStream = stream.PassThrough();
//this.outputParser = new DebugProtocolParser(
// this.outputPassThroughStream,
// 1,
// optDumpDebugWrite,
// optDumpDebugPretty,
// optDumpDebugPretty ? 'Send: ' : null,
// null,
// null // console logging is done at a higher level to match request/response
//);
this.inputParser.on('transport-close', function ()
{
console.info1('TRANSPORT-CLOSE');
_this.uiMessage('debugger-info', 'Debug transport closed');
_this.disconnectDebugger();
_this.emit('exec-status-update');
_this.emit('detached');
});
this.inputParser.on('transport-error', function (err)
{
console.info1('TRANSPORT-ERROR', err);
_this.uiMessage('debugger-info', 'Debug transport error: ' + err);
_this.disconnectDebugger();
});
this.inputParser.on('protocol-version', function (msg) {
var ver = msg.protocolVersion;
console.info1('Debug version identification:', msg.versionIdentification);
_this.protocolVersion = ver;
_this.uiMessage('debugger-info', 'Debug version identification: ' + msg.versionIdentification);
if (ver !== SUPPORTED_DEBUG_PROTOCOL_VERSION) {
console.error('Unsupported debug protocol version (got ' + ver + ', support ' + SUPPORTED_DEBUG_PROTOCOL_VERSION + ')');
_this.uiMessage('debugger-info', 'Protocol version ' + ver + ' unsupported, dropping connection');
_this.targetStream.destroy();
} else {
_this.uiMessage('debugger-info', 'Debug protocol version: ' + ver);
_this.handshook = true;
_this.execStatus = {
attached: true,
state: 'attached',
fileName: '',
funcName: '',
line: 0,
pc: 0
};
_this.debugger_attached = true;
_this.emit('exec-status-update');
_this.emit('attached'); // inform web UI
// Fetch basic info right away
_this.sendBasicInfoRequest();
}
});
this.inputParser.on('debug-message', function (msg)
{
_this.processDebugMessage(msg);
});
this.inputParser.on('stats-update', function () {
_this.stats.rxBytes = this.bytes;
_this.stats.rxDvalues = this.dvalues;
_this.stats.rxMessages = this.messages;
_this.stats.rxBytesPerSec = this.bytesPerSec;
_this.emit('debug-stats-update');
});
if (this.outputParser)
{
this.outputParser.on('stats-update', function () {
_this.stats.txBytes = this.bytes;
_this.stats.txDvalues = this.dvalues;
_this.stats.txMessages = this.messages;
_this.stats.txBytesPerSec = this.bytesPerSec;
_this.emit('debug-stats-update');
});
}
};
Debugger.prototype.processDebugMessage = function (msg) {
var req;
var prevState, newState;
var err;
if (msg[0] === DVAL_REQ) {
// No actual requests sent by the target right now (just notifys).
console.error('Unsolicited reply message, dropping connection: ' + prettyDebugMessage(msg));
} else if (msg[0] === DVAL_REP) {
if (this.reqQueue.length <= 0) {
console.error('Unsolicited reply message, dropping connection: [' + this.reqQueue.length + '] ' + prettyDebugMessage(msg));
this.targetStream.destroy();
}
req = this.reqQueue.shift();
if (optLogMessages) {
console.info1('Reply for ' + prettyDebugCommand(req.reqCmd) + ': ' + prettyDebugMessage(msg));
}
if (req.resolveCb) {
req.resolveCb(msg);
} else {
// nop: no callback
}
} else if (msg[0] === DVAL_ERR) {
if (this.reqQueue.length <= 0) {
console.error('Unsolicited error message, dropping connection: ' + prettyDebugMessage(msg));
this.targetStream.destroy();
}
err = new Error(String(msg[2]) + ' (code ' + String(msg[1]) + ')');
err.errorCode = msg[1] || 0;
req = this.reqQueue.shift();
if (optLogMessages) {
console.info1('Error for ' + prettyDebugCommand(req.reqCmd) + ': ' + prettyDebugMessage(msg));
}
console.info1(req.rejectCb, err);
if (req.rejectCb)
{
req.rejectCb(err);
} else
{
// nop: no callback
}
} else if (msg[0] === DVAL_NFY) {
if (optLogMessages) {
console.info1('Notify ' + prettyDebugCommand(msg[1]) + ': ' + prettyDebugMessage(msg));
}
if (msg[1] === CMD_STATUS)
{
prevState = this.execStatus.state;
newState = msg[2] === 0 ? 'running' : 'paused';
this.execStatus = {
attached: true,
state: newState,
fileName: (typeof(msg[3])=='string'?msg[3]:''),
funcName: (typeof (msg[4]) == 'string' ? msg[4] : ''),
line: msg[5],
pc: msg[6]
};
console.info1('MSG=>', msg);
for (var ii in msg)
{
console.info1('[' + ii + ']', msg[ii]);
}
if (prevState !== newState && newState === 'paused') {
// update run state now that we're paused
if(typeof(msg[3])=='string')
{
this.sendBreakpointListRequest();
this.sendGetLocalsRequest();
this.sendGetCallStackRequest();
}
}
this.emit('exec-status-update');
} else if (msg[1] === CMD_THROW)
{
console.info1(msg);
this.emit('throw', { fatal: msg[2], message: (msg[2] ? 'UNCAUGHT: ' : 'THROW: ') + prettyUiStringUnquoted(msg[3], UI_MESSAGE_CLIPLEN), fileName: msg[4], lineNumber: msg[5] });
this.uiMessage({ type: 'throw', fatal: msg[2], message: (msg[2] ? 'UNCAUGHT: ' : 'THROW: ') + prettyUiStringUnquoted(msg[3], UI_MESSAGE_CLIPLEN), fileName: msg[4], lineNumber: msg[5] });
} else if (msg[1] === CMD_DETACHING) {
this.uiMessage({ type: 'detaching', reason: msg[2], message: 'DETACH: ' + (msg.length >= 5 ? prettyUiStringUnquoted(msg[3]) : 'detaching') });
} else if(msg[1] === CMD_APPNOTIFY)
{
switch(msg[2])
{
case 'MemoryAllocations':
console.info1('MemoryAllocation: ' + msg[3]);
this.emit('memory-allocation', { total: parseInt(msg[3]) });
break;
default:
console.info1('Unknown AppNotify: ' + msg[2]);
break;
}
}
else
{
// Ignore unknown notify messages
console.info1('Unknown notify, ignoring: ' + prettyDebugMessage(msg));
}
} else {
console.error('Invalid initial dvalue, dropping connection: ' + prettyDebugMessage(msg));
this.targetStream.destroy();
}
};
Debugger.prototype.run = function ()
{
var _this = this;
optTargetPort = transport;
this.WebServer = require('http').createServer();
this.WebServer.Debugger = this;
this.WebServer.listen({ port: webport });
updateWebPort(this.WebServer.address().port);
this.WebServer.on('request', function OnDebugWebsiteRequest(imsg, rsp)
{
console.info1('Received inbound request: ' + imsg.method + ' ' + imsg.url);
if (imsg.url == '/')
{
rsp.statusCode = 200;
rsp.statusText = 'OK';
rsp.setHeader('Content-Type', 'text/html');
if (require('fs').existsSync('debugger.html'))
{
rsp.fs = require('fs').createReadStream('debugger.html');
rsp.fs.pipe(rsp);
}
else
{
rsp.end(Buffer.from(dbgHTML, 'base64'));
}
}
else
{
rsp.statusCode = 404;
rsp.end();
}
});
this.WebServer.on('upgrade', function OnDebugWebSocket(req, soc, head)
{
console.info1('WebSocket request on: ', req.url);
this.Debugger.websocket = soc.upgradeWebSocket();
this.Debugger.websocket.Debugger = this.Debugger;
this.Debugger.websocket.on('end', function ()
{
this.Debugger.disconnectDebugger();
console.info1('web socket closed');
});
this.Debugger.websocket.on('data', function OnDebugCmd(buf)
{
var j = null;
try
{
j = JSON.parse(buf);
}
catch(e)
{
console.error('Parse Error: ' + e);
return;
}
switch(j.cmd)
{
case 'ATTACH':
console.info1('Attaching Debugger');
this.Debugger.connectDebugger();
break;
case 'GC':
_debugGC(); // Debugger Heap
hostGC(); // Host Heap
console.info1('Force GC');
break;
case 'STEPOVER':
this.Debugger.sendStepOverRequest();
break;
case 'STEPINTO':
this.Debugger.sendStepIntoRequest();
break;
case 'STEPOUT':
this.Debugger.sendStepOutRequest();
break;
case 'CALLSTACK':
this.Debugger.sendGetCallStackRequest();
break;
case 'HEAP':
var p = this.Debugger.sendDumpHeapRequest();
p.Debugger = this.Debugger;
p.then(function onSendDumpHeap(obj)
{
console.info1('\n\n\n\n');
var heapObjects = obj.heapObjects;
for(var i in heapObjects)
{
console.info1(heapObjects[i].ptr, heapObjects[i].type);
}
//console.info1('this', this);
//process.stdout.write('THEN\n');
//process.stdout.write(JSON.stringify(this) + '\n');
//process.stdout.write(JSON.stringify(obj) + '\n');
}, function OnError(err) { console.info1('ERROR=>', err); });
break;
case 'PAUSE':
this.Debugger.sendPauseRequest();
break;
case 'RESUME':
this.Debugger.sendResumeRequest();
break;
case 'DETACH':
console.info1('Detach Debugger');
this.Debugger.disconnectDebugger();
break;
case 'BREAKPOINT':
console.info1(j);
if (j.file == '')
{
if ((j.file = this.Debugger.execStatus.fileName) == '')
{
j.file = _scriptPath;
}
console.info1('using filePath: ' + j.file);
}
console.info1('ChangeBreakpoint => ' + j.file + ':' + j.line + ' (' + j.mode + ')');
this.Debugger.changeBreakpoint(j.file, j.line, j.mode);
break;
case 'QUERY':
console.info1(j);
var p = this.Debugger.sendEvalRequest('JSON.stringify(' + j.var + ')', j.level);
p.var = j.var;
p.then(function (msg)
{
_this.websocket.write({ cmd: 'QUERY', var: this.promise.var, val: msg.value });
});
break;
case 'EVAL':
console.info1(j);
var p = this.Debugger.sendEvalRequest(j.eval, j.level);
p.eval = j.eval;
p.then(function (msg)
{
_this.websocket.write({ cmd: 'EVAL', eval: this.promise.eval, val: msg.value });
});
break;
break;
case 'LOCALS':
console.info1(j);
this.Debugger.sendGetLocalsRequest(j.level).then(function (locals)
{
var vals = [];
for (var v in locals)
{
console.info1('Pushing: [' + locals[v].key + '] = ' + locals[v].type);
vals.push({ key: locals[v].key, type: locals[v].type });
}
_this.websocket.write({ cmd: 'LOCALS', val: vals });
});
break
case 'SOURCE':
console.info1('SOURCE', j);
if (j.name != '')
{
if (j.name.toLowerCase().endsWith('.js') || j.name == '<<NATIVE>>')
{
console.info1(JSON.stringify({ cmd: 'SOURCE', name: j.name, source: _scriptTokens.join('\n') }));
_this.websocket.write({ cmd: 'SOURCE', name: j.name, source: _scriptTokens.join('\n') });
}
else
{
var p = _this.sendEvalRequest("getJSModule('" + j.name + "');");
p.websocket = _this.websocket;
p.name = j.name;
p.then(function (result) {
this.promise.websocket.write({ cmd: 'SOURCE', name: this.promise.name, source: result.value });
});
}
}
break;
}
hostCooperate();
});
this.Debugger.on('memory-allocation', function (mem)
{
var cmd = { cmd: 'MEMORY', total: mem.total };
this.websocket.write(cmd);
});
this.Debugger.on('detached', function ()
{
detachCleanup();
});
this.Debugger.on('debug-stats-update', function ()
{
// _this.debugStatsLimiter.trigger();
});
this.Debugger.on('ui-message-update', function ()
{
// Explicit rate limiter because this is a source of a lot of traffic.
//_this.uiMessageLimiter.trigger();
});
this.Debugger.on('basic-info-update', function ()
{
// _this.emitBasicInfo();
});
this.Debugger.on('breakpoints-update', function (bpts)
{
console.info1('breakpoints updated');
var cmd = { cmd: 'BREAKPOINT', list: bpts };
this.websocket.write(cmd);
//_this.emitBreakpoints();
});
this.Debugger.on('exec-status-update', function ()
{
if (!this.previousState || this.previousState != this.execStatus.state)
{
this.previousState = this.execStatus.state;
console.info1('new state', this.execStatus.state);
if (this.execStatus.state == 'attached') { console.info1('forcing cooperate'); hostCooperate(); }
if (this.execStatus.attached)
{
this.websocket.pausedNative = false;
switch(this.execStatus.state)
{
case 'paused':
console.info1('PAUSED', this.execStatus);
var src = _scriptPath == this.execStatus.fileName ? _scriptTokens[this.execStatus.line - 1] : null;
if (src == null)
{
if (this.execStatus.fileName != '')
{
var p = this.sendEvalRequest("getJSModule('" + this.execStatus.fileName + "');");
p.websocket = this.websocket;
p.execStatus = this.execStatus;
p.then(function (result) {
var tk = result.value.split('\n');
this.promise.websocket.write({ cmd: 'PAUSE', native: false, file: this.promise.execStatus.fileName, line: this.promise.execStatus.line, source: tk[this.promise.execStatus.line - 1] });
});
}
else
{
this.websocket.pausedNative = true;
this.websocket.write({ cmd: 'PAUSE', native: true, file: this.execStatus.fileName, line: this.execStatus.line, source: '(Native)' });
}
}
else
{
this.websocket.write({ cmd: 'PAUSE', native: false, file: this.execStatus.fileName, line: this.execStatus.line, source: src });
}
break;
case 'running':
this.websocket.write({ cmd: 'RUNNING', file: _scriptPath });
break;
}
}
else if (this.execStatus.state == 'detached')
{
this.websocket.write({ cmd: 'DETACH'});
}
}
// Explicit rate limiter because this is a source of a lot of traffic.
//_this.execStatusLimiter.trigger();
});
this.Debugger.on('throw', function OnThrown(err)
{
var source = err.fileName == _scriptPath ? (_scriptTokens[err.lineNumber - 1]) : null;
if (source == null) {
var p = this.sendEvalRequest("getJSModule('" + err.fileName + "');");
p.ws = this.websocket;
p.err = err;
p.then(function (result)
{
var tk = result.value.split('\n');
this.promise.ws.write({ cmd: 'THROW', line: this.promise.err.lineNumber, msg: this.promise.err.message, file: this.promise.err.fileName, source: tk[this.promise.err.lineNumber - 1] });
});
}
else
{
this.websocket.write({ cmd: 'THROW', line: err.lineNumber, msg: err.message, file: err.fileName, source: source });
}
});
this.Debugger.on('locals-update', function ()
{
//_this.emitLocals();
});
this.Debugger.on('callstack-update', function ()
{
this.websocket.write({ cmd: 'CALLSTACK', callstack: this.callstack });
});
});
//// Initial debugger connection
//this.connectDebugger();
//// Poll various state items when running
//var sendRound = 0;
//var statusPending = false;
//var bplistPending = false;
//var localsPending = false;
//var callStackPending = false;
//setInterval(function () {
// if (_this.execStatus.state !== 'running') {
// return;
// }
// // Could also check for an empty request queue, but that's probably
// // too strict?
// // Pending flags are used to avoid requesting the same thing twice
// // while a previous request is pending. The flag-based approach is
// // quite awkward. Rework to use promises.
// switch (sendRound) {
// case 0:
// if (!statusPending) {
// statusPending = true;
// _this.sendStatusRequest().finally(function () { statusPending = false; });
// }
// break;
// case 1:
// if (!bplistPending) {
// bplistPending = true;
// _this.sendBreakpointListRequest().finally(function () { bplistPending = false; });
// }
// break;
// case 2:
// if (!localsPending) {
// localsPending = true;
// _this.sendGetLocalsRequest().finally(function () { localsPending = false; });
// }
// break;
// case 3:
// if (!callStackPending) {
// callStackPending = true;
// _this.sendGetCallStackRequest().finally(function () { callStackPending = false; });
// }
// break;
// }
// sendRound = (sendRound + 1) % 4;
//}, 500);
};
/*
* Miscellaneous helpers
*/
var nybbles = '0123456789abcdef';
/* Convert a buffer into a string using Unicode codepoints U+0000...U+00FF.
* This is the NodeJS 'binary' encoding, but since it's being deprecated,
* reimplement it here. We need to avoid parsing strings as e.g. UTF-8:
* although Duktape strings are usually UTF-8/CESU-8 that's not always the
* case, e.g. for internal strings. Buffer values are also represented as
* strings in the debug protocol, so we must deal accurately with arbitrary
* byte arrays.
*/
function bufferToDebugString(buf) {
var cp = [];
var i, n;
/*
// This fails with "RangeError: Maximum call stack size exceeded" for some
// reason, so use a much slower variant.
for (i = 0, n = buf.length; i < n; i++) {
cp[i] = buf[i];
}
return String.fromCharCode.apply(String, cp);
*/
for (i = 0, n = buf.length; i < n; i++) {
cp[i] = String.fromCharCode(buf[i]);
}
return cp.join('');
}
/* Write a string into a buffer interpreting codepoints U+0000...U+00FF
* as bytes. Drop higher bits.
*/
function writeDebugStringToBuffer(str, buf, off) {
var i, n;
for (i = 0, n = str.length; i < n; i++) {
buf[off + i] = str.charCodeAt(i) & 0xff; // truncate higher bits
}
}
/* Encode an ordinary Unicode string into a dvalue compatible format, i.e.
* into a byte array represented as codepoints U+0000...U+00FF. Concretely,
* encode with UTF-8 and then represent the bytes with U+0000...U+00FF.
*/
function stringToDebugString(str) {
return utf8.encode(str);
}
/* Pretty print a dvalue. Useful for dumping etc. */
function prettyDebugValue(x) {
if (typeof x === 'object' && x !== null) {
if (x.type === 'eom') {
return 'EOM';
} else if (x.type === 'req') {
return 'REQ';
} else if (x.type === 'rep') {
return 'REP';
} else if (x.type === 'err') {
return 'ERR';
} else if (x.type === 'nfy') {
return 'NFY';
}
}
return JSON.stringify(x);
}
/* Pretty print a number for UI usage. Types and values should be easy to
* read and typing should be obvious. For numbers, support Infinity, NaN,
* and signed zeroes properly.
*/
function prettyUiNumber(x) {
if (x === 1 / 0) { return 'Infinity'; }
if (x === -1 / 0) { return '-Infinity'; }
if (isNaN(x)) { return 'NaN'; }
if (x === 0 && 1 / x > 0) { return '0'; }
if (x === 0 && 1 / x < 0) { return '-0'; }
return x.toString();
}
/* Pretty print a dvalue string (bytes represented as U+0000...U+00FF)
* for UI usage. Try UTF-8 decoding to get a nice Unicode string (JSON
* encoded) but if that fails, ensure that bytes are encoded transparently.
* The result is a quoted string with a special quote marker for a "raw"
* string when UTF-8 decoding fails. Very long strings are optionally
* clipped.
*/
function prettyUiString(x, cliplen) {
var ret;
if (typeof x !== 'string') {
throw new Error('invalid input to prettyUiString: ' + typeof x);
}
try {
// Here utf8.decode() is better than decoding using NodeJS buffer
// operations because we want strict UTF-8 interpretation.
ret = JSON.stringify(utf8.decode(x));
} catch (e) {
// When we fall back to representing bytes, indicate that the string
// is "raw" with a 'r"' prefix (a somewhat arbitrary convention).
// U+0022 = ", U+0027 = '
ret = 'r"' + x.replace(/[\u0022\u0027\u0000-\u001f\u0080-\uffff]/g, function (match) {
var cp = match.charCodeAt(0);
return '\\x' + nybbles[(cp >> 4) & 0x0f] + nybbles[cp & 0x0f];
}) + '"';
}
if (cliplen && ret.length > cliplen) {
ret = ret.substring(0, cliplen) + '...'; // trailing '"' intentionally missing
}
return ret;
}
/* Pretty print a dvalue string (bytes represented as U+0000...U+00FF)
* for UI usage without quotes.
*/
function prettyUiStringUnquoted(x, cliplen) {
var ret;
if (typeof x !== 'string') {
throw new Error('invalid input to prettyUiStringUnquoted: ' + typeof x);
}
try {
// Here utf8.decode() is better than decoding using NodeJS buffer
// operations because we want strict UTF-8 interpretation.
// XXX: unprintable characters etc? In some UI cases we'd want to
// e.g. escape newlines and in others not.
ret = utf8.decode(x);
} catch (e) {
// For the unquoted version we don't need to escape single or double
// quotes.
ret = x.replace(/[\u0000-\u001f\u0080-\uffff]/g, function (match) {
var cp = match.charCodeAt(0);
return '\\x' + nybbles[(cp >> 4) & 0x0f] + nybbles[cp & 0x0f];
});
}
if (cliplen && ret.length > cliplen) {
ret = ret.substring(0, cliplen) + '...';
}
return ret;
}
/* Pretty print a dvalue for UI usage. Everything comes out as a ready-to-use
* string.
*
* XXX: Currently the debug client formats all values for UI use. A better
* solution would be to pass values in typed form and let the UI format them,
* so that styling etc. could take typing into account.
*/
function prettyUiDebugValue(x, cliplen) {
if (typeof x === 'object' && x !== null) {
// Note: typeof null === 'object', so null special case explicitly
if (x.type === 'eom') {
return 'EOM';
} else if (x.type === 'req') {
return 'REQ';
} else if (x.type === 'rep') {
return 'REP';
} else if (x.type === 'err') {
return 'ERR';
} else if (x.type === 'nfy') {
return 'NFY';
} else if (x.type === 'unused') {
return 'unused';
} else if (x.type === 'undefined') {
return 'undefined';
} else if (x.type === 'buffer') {
return '|' + x.data + '|';
} else if (x.type === 'object') {
console.info1('OBJECT => ', JSON.stringify(x));
// return '[object ' + (dukClassNames[x.class] || ('class ' + x.class)) + ' ' + x.pointer + ']';
return '[object ' + ('class ' + x.class) + ' ' + x.pointer + ']';
} else if (x.type === 'pointer') {
return '<pointer ' + x.pointer + '>';
} else if (x.type === 'lightfunc') {
return '<lightfunc 0x' + x.flags.toString(16) + ' ' + x.pointer + '>';
} else if (x.type === 'number') {
// duk_tval number, any IEEE double
var tmp = new Buffer(x.data, 'hex'); // decode into hex
var val = tmp.readDoubleBE(0); // big endian ieee double
return prettyUiNumber(val);
}
} else if (x === null) {
return 'null';
} else if (typeof x === 'boolean') {
return x ? 'true' : 'false';
} else if (typeof x === 'string') {
return prettyUiString(x, cliplen);
} else if (typeof x === 'number') {
// Debug protocol integer
return prettyUiNumber(x);
}
// We shouldn't come here, but if we do, JSON is a reasonable default.
return JSON.stringify(x);
}
/* Pretty print a debugger message given as an array of parsed dvalues.
* Result should be a pure ASCII one-liner.
*/
function prettyDebugMessage(msg) {
return msg.map(prettyDebugValue).join(' ');
}
/* Pretty print a debugger command. */
function prettyDebugCommand(cmd)
{
return debugCommandNames[cmd] || String(cmd);
}
/* Decode and normalize source file contents: UTF-8, tabs to 8,
* CR LF to LF.
*/
function decodeAndNormalizeSource(data) {
var tmp;
var lines, line, repl;
var i, n;
var j, m;
try {
tmp = data.toString('utf8');
} catch (e) {
console.error('Failed to UTF-8 decode source file, ignoring: ' + e);
tmp = String(data);
}
lines = tmp.split(/\r?\n/);
for (i = 0, n = lines.length; i < n; i++) {
line = lines[i];
if (/\t/.test(line)) {
repl = '';
for (j = 0, m = line.length; j < m; j++) {
if (line.charAt(j) === '\t') {
repl += ' ';
while ((repl.length % 8) != 0) {
repl += ' ';
}
} else {
repl += line.charAt(j);
}
}
lines[i] = repl;
}
}
// XXX: normalize last newline (i.e. force a newline if contents don't
// end with a newline)?
return lines.join('\n');
}
module.exports = Debugger;
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