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Posted to commits@nifi.apache.org by ph...@apache.org on 2018/01/02 18:28:41 UTC
[46/51] [partial] nifi-minifi-cpp git commit: MINIFICPP-351: Remove
Civetweb third party directory
http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/ede68a10/thirdparty/civetweb-1.10/src/third_party/duktape-1.5.2/debugger/duk_debug.js
----------------------------------------------------------------------
diff --git a/thirdparty/civetweb-1.10/src/third_party/duktape-1.5.2/debugger/duk_debug.js b/thirdparty/civetweb-1.10/src/third_party/duktape-1.5.2/debugger/duk_debug.js
deleted file mode 100644
index ab0623f..0000000
--- a/thirdparty/civetweb-1.10/src/third_party/duktape-1.5.2/debugger/duk_debug.js
+++ /dev/null
@@ -1,2473 +0,0 @@
-/*
- * Minimal debug web console for Duktape command line tool
- *
- * See debugger/README.rst.
- *
- * The web UI socket.io communication can easily become a bottleneck and
- * it's important to ensure that the web UI remains responsive. Basic rate
- * limiting mechanisms (token buckets, suppressing identical messages, etc)
- * are used here now. Ideally the web UI would pull data on its own terms
- * which would provide natural rate limiting.
- *
- * Promises are used to structure callback chains.
- *
- * https://github.com/petkaantonov/bluebird
- * https://github.com/petkaantonov/bluebird/blob/master/API.md
- * https://github.com/petkaantonov/bluebird/wiki/Promise-anti-patterns
- */
-
-var Promise = require('bluebird');
-var events = require('events');
-var stream = require('stream');
-var path = require('path');
-var fs = require('fs');
-var net = require('net');
-var byline = require('byline');
-var util = require('util');
-var readline = require('readline');
-var sprintf = require('sprintf').sprintf;
-var utf8 = require('utf8');
-var wrench = require('wrench'); // https://github.com/ryanmcgrath/wrench-js
-var yaml = require('yamljs');
-
-// Command line options (defaults here, overwritten if necessary)
-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 = false;
-
-// Constants
-var UI_MESSAGE_CLIPLEN = 128;
-var LOCALS_CLIPLEN = 64;
-var EVAL_CLIPLEN = 4096;
-var GETVAR_CLIPLEN = 4096;
-
-// Commands initiated by Duktape
-var CMD_STATUS = 0x01;
-var CMD_PRINT = 0x02;
-var CMD_ALERT = 0x03;
-var CMD_LOG = 0x04;
-var CMD_THROW = 0x05;
-var CMD_DETACHING = 0x06;
-
-// 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;
-
-// Errors
-var ERR_UNKNOWN = 0x00;
-var ERR_UNSUPPORTED = 0x01;
-var ERR_TOOMANY = 0x02;
-var ERR_NOTFOUND = 0x03;
-
-// 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' };
-
-// String map for commands (debug dumping). A single map works (instead of
-// separate maps for each direction) because command numbers don't currently
-// overlap. So merge the YAML metadata.
-var debugCommandMeta = yaml.load('duk_debugcommands.yaml');
-var debugCommandNames = []; // list of command names, merged client/target
-debugCommandMeta.target_commands.forEach(function (k, i) {
- debugCommandNames[i] = k;
-});
-debugCommandMeta.client_commands.forEach(function (k, i) { // override
- debugCommandNames[i] = k;
-});
-var debugCommandNumbers = {}; // map from (merged) command name to number
-debugCommandNames.forEach(function (k, i) {
- debugCommandNumbers[k] = i;
-});
-
-// Duktape heaphdr type constants, must match C headers
-var DUK_HTYPE_STRING = 1;
-var DUK_HTYPE_OBJECT = 2;
-var DUK_HTYPE_BUFFER = 3;
-
-// Duktape internal class numbers, must match C headers
-var dukClassNameMeta = yaml.load('duk_classnames.yaml');
-var dukClassNames = dukClassNameMeta.class_names;
-
-// Bytecode opcode/extraop metadata
-var dukOpcodes = yaml.load('duk_opcodes.yaml');
-if (dukOpcodes.opcodes.length != 64) {
- throw new Error('opcode metadata length incorrect');
-}
-if (dukOpcodes.extra.length != 256) {
- throw new Error('extraop metadata length incorrect');
-}
-
-/*
- * 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 (Number.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') {
- return '[object ' + (dukClassNames[x.class] || ('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.log('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');
-}
-
-/* Token bucket rate limiter for a given callback. Calling code calls
- * trigger() to request 'cb' to be called, and the rate limiter ensures
- * that 'cb' is not called too often.
- */
-function RateLimited(tokens, rate, cb) {
- var _this = this;
- this.maxTokens = tokens;
- this.tokens = this.maxTokens;
- this.rate = rate;
- this.cb = cb;
- this.delayedCb = false;
-
- // Right now the implementation is setInterval-based, but could also be
- // made timerless. There are so few rate limited resources that this
- // doesn't matter in practice.
-
- this.tokenAdder = setInterval(function () {
- if (_this.tokens < _this.maxTokens) {
- _this.tokens++;
- }
- if (_this.delayedCb) {
- _this.delayedCb = false;
- _this.tokens--;
- _this.cb();
- }
- }, this.rate);
-}
-RateLimited.prototype.trigger = function () {
- if (this.tokens > 0) {
- this.tokens--;
- this.cb();
- } else {
- this.delayedCb = true;
- }
-};
-
-/*
- * Source file manager
- *
- * Scan the list of search directories for Ecmascript source files and
- * build an index of them. Provides a mechanism to find a source file
- * based on a raw 'fileName' property provided by the debug target, and
- * to provide a file list for the web UI.
- *
- * NOTE: it's tempting to do loose matching for filenames, but this does
- * not work in practice. Filenames must match 1:1 with the debug target
- * so that e.g. breakpoints assigned based on filenames found from the
- * search paths will match 1:1 on the debug target. If this is not the
- * case, breakpoints won't work as expected.
- */
-
-function SourceFileManager(directories) {
- this.directories = directories;
- this.extensions = { '.js': true, '.jsm': true };
- this.files;
-}
-
-SourceFileManager.prototype.scan = function () {
- var _this = this;
- var fileMap = {}; // absFn -> true
- var files;
-
- this.directories.forEach(function (dir) {
- console.log('Scanning source files: ' + dir);
- try {
- wrench.readdirSyncRecursive(dir).forEach(function (fn) {
- var absFn = path.normalize(path.join(dir, fn)); // './foo/bar.js' -> 'foo/bar.js'
- var ent;
-
- if (fs.existsSync(absFn) &&
- fs.lstatSync(absFn).isFile() &&
- _this.extensions[path.extname(fn)]) {
- // We want the fileMap to contain the filename relative to
- // the search dir root.
- fileMap[fn] = true;
- }
- });
- } catch (e) {
- console.log('Failed to scan ' + dir + ': ' + e);
- }
- });
-
- files = Object.keys(fileMap);
- files.sort();
- this.files = files;
-
- console.log('Found ' + files.length + ' source files in ' + this.directories.length + ' search directories');
-};
-
-SourceFileManager.prototype.getFiles = function () {
- return this.files;
-};
-
-SourceFileManager.prototype.search = function (fileName) {
- var _this = this;
-
- // Loose matching is tempting but counterproductive: filenames must
- // match 1:1 between the debug client and the debug target for e.g.
- // breakpoints to work as expected. Note that a breakpoint may be
- // assigned by selecting a file from a dropdown populated by scanning
- // the filesystem for available sources and there's no way of knowing
- // if the debug target uses the exact same name.
-
- function tryLookup() {
- var i, fn, data;
-
- for (i = 0; i < _this.directories.length; i++) {
- fn = path.join(_this.directories[i], fileName);
- if (fs.existsSync(fn) && fs.lstatSync(fn).isFile()) {
- data = fs.readFileSync(fn); // Raw bytes
- return decodeAndNormalizeSource(data); // Unicode string
- }
- }
- return null;
- }
-
- return tryLookup(fileName);
-};
-
-/*
- * Debug protocol parser
- *
- * The debug protocol parser is an EventEmitter which parses debug messages
- * from an input stream and emits 'debug-message' events for completed
- * messages ending in an EOM. The parser also provides debug dumping, stream
- * logging functionality, and statistics gathering functionality.
- *
- * This parser is used to parse both incoming and outgoing messages. For
- * outgoing messages the only function is to validate and debug dump the
- * messages we're about to send. The downside of dumping at this low level
- * is that we can't match request and reply/error messages here.
- *
- * http://www.sitepoint.com/nodejs-events-and-eventemitter/
- */
-
-function DebugProtocolParser(inputStream,
- protocolVersion,
- rawDumpFileName,
- textDumpFileName,
- textDumpFilePrefix,
- hexDumpConsolePrefix,
- textDumpConsolePrefix) {
- var _this = this;
- 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 = new Buffer(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 = new Buffer(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.log('Ignoring incoming data from closed input stream, len ' + data.length);
- return;
- }
-
- _this.bytes += data.length;
- if (rawDumpFileName) {
- fs.appendFileSync(rawDumpFileName, data);
- }
- if (hexDumpConsolePrefix) {
- console.log(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 = new Buffer(i);
- buf.copy(tmpbuf, 0, 0, i);
- consume(i + 1);
- verstr = tmpbuf.toString('utf-8');
- 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 = new Buffer(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 = new Buffer(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 = new Buffer(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 = new Buffer(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 = new Buffer(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 = new Buffer(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 = new Buffer(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 = new Buffer(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 = new Buffer(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 = new Buffer(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.log(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 = Object.create(events.EventEmitter.prototype);
-
-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 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 = new Buffer(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 = new Buffer(3 + len);
- buf[0] = 0x14;
- buf[1] = (len >> 8) & 0xff;
- buf[2] = (len >> 0) & 0xff;
- dec.copy(buf, 3);
- return buf;
- } else {
- buf = new Buffer(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 = new Buffer(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 = new Buffer(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 = new Buffer(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 = new Buffer(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 = new Buffer(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 = new Buffer(1 + v.length);
- buf[0] = 0x60 + v.length;
- writeDebugStringToBuffer(v, buf, 1);
- return buf;
- } else if (v.length <= 0xffff) {
- buf = new Buffer(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 = new Buffer(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));
-}
-
-/*
- * 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.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.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;
-}
-Debugger.prototype = events.EventEmitter.prototype;
-
-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 & 0x3f];
- if (op.extra) {
- op = dukOpcodes.extra[(ins >> 6) & 0xff];
- }
-
- args = [];
- comments = [];
- if (op.args) {
- for (j = 0, m = op.args.length; j < m; j++) {
- switch (op.args[j]) {
- case 'A_R': args.push('r' + ((ins >>> 6) & 0xff)); break;
- case 'A_RI': args.push('r' + ((ins >>> 6) & 0xff) + '(indirect)'); break;
- case 'A_C': args.push('c' + ((ins >>> 6) & 0xff)); break;
- case 'A_H': args.push('0x' + ((ins >>> 6) & 0xff).toString(16)); break;
- case 'A_I': args.push(((ins >>> 6) & 0xff).toString(10)); break;
- case 'A_B': args.push(((ins >>> 6) & 0xff) ? 'true' : 'false'); break;
- case 'B_RC': args.push((ins & (1 << 22) ? 'c' : 'r') + ((ins >>> 14) & 0x0ff)); break;
- case 'B_R': args.push('r' + ((ins >>> 14) & 0x1ff)); break;
- case 'B_RI': args.push('r' + ((ins >>> 14) & 0x1ff) + '(indirect)'); break;
- case 'B_C': args.push('c' + ((ins >>> 14) & 0x1ff)); break;
- case 'B_H': args.push('0x' + ((ins >>> 14) & 0x1ff).toString(16)); break;
- case 'B_I': args.push(((ins >>> 14) & 0x1ff).toString(10)); break;
- case 'C_RC': args.push((ins & (1 << 31) ? 'c' : 'r') + ((ins >>> 23) & 0x0ff)); break;
- case 'C_R': args.push('r' + ((ins >>> 23) & 0x1ff)); break;
- case 'C_RI': args.push('r' + ((ins >>> 23) & 0x1ff) + '(indirect)'); break;
- case 'C_C': args.push('c' + ((ins >>> 23) & 0x1ff)); break;
- case 'C_H': args.push('0x' + ((ins >>> 23) & 0x1ff).toString(16)); break;
- case 'C_I': args.push(((ins >>> 23) & 0x1ff).toString(10)); break;
- case 'BC_R': args.push('r' + ((ins >>> 14) & 0x3ffff)); break;
- case 'BC_C': args.push('c' + ((ins >>> 14) & 0x3ffff)); break;
- case 'BC_H': args.push('0x' + ((ins >>> 14) & 0x3ffff).toString(16)); break;
- case 'BC_I': args.push(((ins >>> 14) & 0x3ffff).toString(10)); break;
- case 'ABC_H': args.push(((ins >>> 6) & 0x03ffffff).toString(16)); break;
- case 'ABC_I': args.push(((ins >>> 6) & 0x03ffffff).toString(10)); break;
- case 'BC_LDINT': args.push(((ins >>> 14) & 0x3ffff) - (1 << 17)); break;
- case 'BC_LDINTX': args.push(((ins >>> 14) & 0x3ffff) - 0); break; // no bias in LDINTX
- case 'ABC_JUMP': {
- var pc_add = ((ins >>> 6) & 0x03ffffff) - (1 << 25) + 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.attached || !_this.handshook || !_this.reqQueue || !_this.targetStream) {
- throw new Error('invalid state for sendRequest');
- }
-
- for (i = 0; i < msg.length; i++) {
- try {
- dval = formatDebugValue(msg[i]);
- } catch (e) {
- console.log('Failed to format dvalue, dropping connection: ' + e);
- console.log(e.stack || e);
- _this.targetStream.destroy();
- throw new Error('failed to format dvalue');
- }
- dvals.push(dval);
- }
-
- data = Buffer.concat(dvals);
-
- _this.targetStream.write(data);
- _this.outputPassThroughStream.write(data); // stats and dumping
-
- if (optLogMessages) {
- console.log('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, varname, (typeof level === 'number' ? level : -1), 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, varname, varvalue, (typeof level === 'number' ? level : -1), 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
- var _this = this;
- 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');
- 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) });
- }
-
- _this.locals = locals;
- _this.emit('locals-update');
- return msg;
- });
-};
-
-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;
- return this.sendRequest([ DVAL_REQ, CMD_EVAL, evalInput, (typeof level === 'number' ? level : -1), 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.log('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, 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 = new Buffer(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();
- });
-};
-
-Debugger.prototype.disconnectDebugger = function () {
- if (this.targetStream) {
- // We require a destroy() method from the actual target stream
- this.targetStream.destroy();
- 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;
- }
-
- this.attached = false;
- this.handshook = false;
- this.reqQueue = null;
- this.execStatus = {
- attached: false,
- state: 'detached',
- fileName: '',
- funcName: '',
- line: 0,
- pc: 0
- };
-};
-
-Debugger.prototype.connectDebugger = function () {
- var _this = this;
-
- this.disconnectDebugger(); // close previous target connection
-
- // CUSTOMTRANSPORT: to use a custom transport, change this.targetStream to
- // use your custom transport.
-
- console.log('Connecting to ' + optTargetHost + ':' + optTargetPort + '...');
- this.targetStream = new net.Socket();
- this.targetStream.connect(optTargetPort, optTargetHost, function () {
- console.log('Debug transport connected');
- _this.attached = true;
- _this.reqQueue = [];
- _this.uiMessage('debugger-info', 'Debug transport connected');
- });
-
- 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
- );
-
- // 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 () {
- _this.uiMessage('debugger-info', 'Debug transport closed');
- _this.disconnectDebugger();
- _this.emit('exec-status-update');
- _this.emit('detached');
- });
-
- this.inputParser.on('transport-error', function (err) {
- _this.uiMessage('debugger-info', 'Debug transport error: ' + err);
- _this.disconnectDebugger();
- });
-
- this.inputParser.on('protocol-version', function (msg) {
- var ver = msg.protocolVersion;
- console.log('Debug version identification:', msg.versionIdentification);
- _this.protocolVersion = ver;
- _this.uiMessage('debugger-info', 'Debug version identification: ' + msg.versionIdentification);
- if (ver !== 1) {
- _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.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');
- });
-
- 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.log('Unsolicited reply message, dropping connection: ' + prettyDebugMessage(msg));
- } else if (msg[0] === DVAL_REP) {
- if (this.reqQueue.length <= 0) {
- console.log('Unsolicited reply message, dropping connection: ' + prettyDebugMessage(msg));
- this.targetStream.destroy();
- }
- req = this.reqQueue.shift();
-
- if (optLogMessages) {
- console.log('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.log('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.log('Error for ' + prettyDebugCommand(req.reqCmd) + ': ' + prettyDebugMessage(msg));
- }
-
- if (req.rejectCb) {
- req.rejectCb(err);
- } else {
- // nop: no callback
- }
- } else if (msg[0] === DVAL_NFY) {
- if (optLogMessages) {
- console.log('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: msg[3],
- funcName: msg[4],
- line: msg[5],
- pc: msg[6]
- };
-
- if (prevState !== newState && newState === 'paused') {
- // update run state now that we're paused
- this.sendBreakpointListRequest();
- this.sendGetLocalsRequest();
- this.sendGetCallStackRequest();
- }
-
- this.emit('exec-status-update');
- } else if (msg[1] === CMD_PRINT) {
- this.uiMessage('print', prettyUiStringUnquoted(msg[2], UI_MESSAGE_CLIPLEN));
- } else if (msg[1] === CMD_ALERT) {
- this.uiMessage('alert', prettyUiStringUnquoted(msg[2], UI_MESSAGE_CLIPLEN));
- } else if (msg[1] === CMD_LOG) {
- this.uiMessage({ type: 'log', level: msg[2], message: prettyUiStringUnquoted(msg[3], UI_MESSAGE_CLIPLEN) });
- } else if (msg[1] === CMD_THROW) {
- 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 {
- // Ignore unknown notify messages
- console.log('Unknown notify, ignoring: ' + prettyDebugMessage(msg));
-
- //this.targetStream.destroy();
- }
- } else {
- console.log('Invalid initial dvalue, dropping connection: ' + prettyDebugMessage(msg));
- this.targetStream.destroy();
- }
-};
-
-Debugger.prototype.run = function () {
- var _this = this;
-
- // 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);
-};
-
-/*
- * Express setup and socket.io
- */
-
-function DebugWebServer() {
- this.dbg = null; // debugger singleton
- this.socket = null; // current socket (or null)
- this.keepaliveTimer = null;
- this.uiMessageLimiter = null;
- this.cachedJson = {}; // cache to avoid resending identical data
- this.sourceFileManager = new SourceFileManager(optSourceSearchDirs);
- this.sourceFileManager.scan();
-}
-
-DebugWebServer.prototype.handleSourcePost = function (req, res) {
- var fileName = req.body && req.body.fileName;
- var fileData;
-
- console.log('Source request: ' + fileName);
-
- if (typeof fileName !== 'string') {
- res.status(500).send('invalid request');
- return;
- }
- fileData = this.sourceFileManager.search(fileName, optSourceSearchDirs);
- if (typeof fileData !== 'string') {
- res.status(404).send('not found');
- return;
- }
- res.status(200).send(fileData); // UTF-8
-};
-
-DebugWebServer.prototype.handleSourceListPost = function (req, res) {
- console.log('Source list request');
-
- var files = this.sourceFileManager.getFiles();
- res.header('Content-Type', 'application/json');
- res.status(200).json(files);
-};
-
-DebugWebServer.prototype.handleHeapDumpGet = function (req, res) {
- console.log('Heap dump get');
-
- this.dbg.sendDumpHeapRequest().then(function (val) {
- res.header('Content-Type', 'application/json');
- //res.status(200).json(val);
- res.status(200).send(JSON.stringify(val, null, 4));
- }).catch(function (err) {
- res.status(500).send('Failed to get heap dump: ' + (err.stack || err));
- });
-};
-
-DebugWebServer.prototype.run = function () {
- var _this = this;
-
- var express = require('express');
- var bodyParser = require('body-parser');
- var app = express();
- var http = require('http').Server(app);
- var io = require('socket.io')(http);
-
- app.use(bodyParser.json());
- app.post('/source', this.handleSourcePost.bind(this));
- app.post('/sourceList', this.handleSourceListPost.bind(this));
- app.get('/heapDump.json', this.handleHeapDumpGet.bind(this));
- app.use('/', express.static(__dirname + '/static'));
-
- http.listen(optHttpPort, function () {
- console.log('Listening on *:' + optHttpPort);
- });
-
- io.on('connection', this.handleNewSocketIoConnection.bind(this));
-
- this.dbg.on('attached', function () {
- console.log('Debugger attached');
- });
-
- this.dbg.on('detached', function () {
- console.log('Debugger detached');
- });
-
- this.dbg.on('debug-stats-update', function () {
- _this.debugStatsLimiter.trigger();
- });
-
- this.dbg.on('ui-message-update', function () {
- // Explicit rate limiter because this is a source of a lot of traffic.
- _this.uiMessageLimiter.trigger();
- });
-
- this.dbg.on('basic-info-update', function () {
- _this.emitBasicInfo();
- });
-
- this.dbg.on('breakpoints-update', function () {
- _this.emitBreakpoints();
- });
-
- this.dbg.on('exec-status-update', function () {
- // Explicit rate limiter because this is a source of a lot of traffic.
- _this.execStatusLimiter.trigger();
- });
-
- this.dbg.on('locals-update', function () {
- _this.emitLocals();
- });
-
- this.dbg.on('callstack-update', function () {
- _this.emitCallStack();
- });
-
- this.uiMessageLimiter = new RateLimited(10, 1000, this.uiMessageLimiterCallback.bind(this));
- this.execStatusLimiter = new RateLimited(50, 500, this.execStatusLimiterCallback.bind(this));
- this.debugStatsLimiter = new RateLimited(1, 2000, this.debugStatsLimiterCallback.bind(this));
-
- this.keepaliveTimer = setInterval(this.emitKeepalive.bind(this), 30000);
-};
-
-DebugWebServer.prototype.handleNewSocketIoConnection = function (socket) {
- var _this = this;
-
- console.log('Socket.io connected');
- if (this.socket) {
- console.log('Closing previous socket.io socket');
- this.socket.emit('replaced');
- }
- this.socket = socket;
-
- this.emitKeepalive();
-
- socket.on('disconnect', function () {
- console.log('Socket.io disconnected');
- if (_this.socket === socket) {
- _this.socket = null;
- }
- });
-
- socket.on('keepalive', function (msg) {
- // nop
- });
-
- socket.on('attach', function (msg) {
- if (_this.dbg.targetStream) {
- console.log('Attach request when debugger already has a connection, ignoring');
- } else {
- _this.dbg.connectDebugger();
- }
- });
-
- socket.on('detach', function (msg) {
- // Try to detach cleanly, timeout if no response
- Promise.any([
- _this.dbg.sendDetachRequest(),
- Promise.delay(3000)
- ]).finally(function () {
- _this.dbg.disconnectDebugger();
- });
- });
-
- socket.on('stepinto', function (msg) {
- _this.dbg.sendStepIntoRequest();
- });
-
- socket.on('stepover', function (msg) {
- _this.dbg.sendStepOverRequest();
- });
-
- socket.on('stepout', function (msg) {
- _this.dbg.sendStepOutRequest();
- });
-
- socket.on('pause', function (msg) {
- _this.dbg.sendPauseRequest();
- });
-
- socket.on('resume', function (msg) {
- _this.dbg.sendResumeRequest();
- });
-
- socket.on('eval', function (msg) {
- // msg.input is a proper Unicode strings here, and needs to be
- // converted into a protocol string (U+0000...U+00FF).
- var input = stringToDebugString(msg.input);
- _this.dbg.sendEvalRequest(input, msg.level).then(function (v) {
- socket.emit('eval-result', { error: v.error, result: prettyUiDebugValue(v.value, EVAL_CLIPLEN) });
- });
-
- // An eval call quite possibly changes the local variables so always
- // re-read locals afterwards. We don't need to wait for Eval to
- // complete here; the requests will pipeline automatically and be
- // executed in order.
-
- // XXX: move this to the web UI so that the UI can control what
- // locals are listed (or perhaps show locals for all levels with
- // an expandable tree view).
- _this.dbg.sendGetLocalsRequest();
- });
-
- socket.on('getvar', function (msg) {
- // msg.varname is a proper Unicode strings here, and needs to be
- // converted into a protocol string (U+0000...U+00FF).
- var varname = stringToDebugString(msg.varname);
- _this.dbg.sendGetVarRequest(varname, msg.level)
- .then(function (v) {
- socket.emit('getvar-result', { found: v.found, result: prettyUiDebugValue(v.value, GETVAR_CLIPLEN) });
- });
- });
-
- socket.on('putvar', function (msg) {
- // msg.varname and msg.varvalue are proper Unicode strings here, they
- // need to be converted into protocol strings (U+0000...U+00FF).
- var varname = stringToDebugString(msg.varname);
- var varvalue = msg.varvalue;
-
- // varvalue is JSON parsed by the web UI for now, need special string
- // encoding here.
- if (typeof varvalue === 'string') {
- varvalue = stringToDebugString(msg.varvalue);
- }
-
- _this.dbg.sendPutVarRequest(varname, varvalue, msg.level)
- .then(function (v) {
- console.log('putvar done'); // XXX: signal success to UI?
- });
-
- // A PutVar call quite possibly changes the local variables so always
- // re-read locals afterwards. We don't need to wait for PutVar to
- // complete here; the requests will pipeline automatically and be
- // executed in order.
-
- // XXX: make the client do this?
- _this.dbg.sendGetLocalsRequest();
- });
-
- socket.on('add-breakpoint', function (msg) {
- _this.dbg.changeBreakpoint(msg.fileName, msg.lineNumber, 'add');
- });
-
- socket.on('delete-breakpoint', function (msg) {
- _this.dbg.changeBreakpoint(msg.fileName, msg.lineNumber, 'delete');
- });
-
- socket.on('toggle-breakpoint', function (msg) {
- _this.dbg.changeBreakpoint(msg.fileName, msg.lineNumber, 'toggle');
- });
-
- socket.on('delete-all-breakpoints', function (msg) {
- _this.dbg.changeBreakpoint(null, null, 'deleteall');
- });
-
- socket.on('get-bytecode', function (msg) {
- _this.dbg.sendGetBytecodeRequest().then(function (res) {
- socket.emit('bytecode', res);
- });
- });
-
- // Resend all debugger state for new client
- this.cachedJson = {}; // clear client state cache
- this.emitBasicInfo();
- this.emitStats();
- this.emitExecStatus();
- this.emitUiMessages();
- this.emitBreakpoints();
- this.emitCallStack();
- this.emitLocals();
-};
-
-// Check if 'msg' would encode to the same JSON which was previously sent
-// to the web client. The caller then avoid resending unnecessary stuff.
-DebugWebServer.prototype.cachedJsonCheck = function (cacheKey, msg) {
- var newJson = JSON.stringify(msg);
- if (this.cachedJson[cacheKey] === newJson) {
- return true; // cached
- }
- this.cachedJson[cacheKey] = newJson;
- return false; // not cached, send (cache already updated)
-};
-
-DebugWebServer.prototype.uiMessageLimiterCallback = function () {
- this.emitUiMessages();
-};
-
-DebugWebServer.prototype.execStatusLimiterCallback = function () {
- this.emitExecStatus();
-};
-
-DebugWebServer.prototype.debugStatsLimiterCallback = function () {
- this.emitStats();
-};
-
-DebugWebServer.prototype.emitKeepalive = function () {
- if (!this.socket) { return; }
-
- this.socket.emit('keepalive', { nodeVersion: process.version });
-};
-
-DebugWebServer.prototype.emitBasicInfo = function () {
- if (!this.socket) { return; }
-
- var newMsg = {
- duk_version: this.dbg.dukVersion,
- duk_git_describe: this.dbg.dukGitDescribe,
- target_info: this.dbg.targetInfo,
- endianness: this.dbg.endianness
- };
- if (this.cachedJsonCheck('basic-info', newMsg)) {
- return;
- }
- this.socket.emit('basic-info', newMsg);
-};
-
-DebugWebServer.prototype.emitStats = function () {
- if (!this.socket) { return; }
-
- this.socket.emit('debug-stats', this.dbg.stats);
-};
-
-DebugWebServer.prototype.emitExecStatus = function () {
- if (!this.socket) { return; }
-
- var newMsg = this.dbg.execStatus;
- if (this.cachedJsonCheck('exec-status', newMsg)) {
- return;
- }
- this.socket.emit('exec-status', newMsg);
-};
-
-DebugWebServer.prototype.emitUiMessages = function () {
- if (!this.socket) { return; }
-
- var newMsg = this.dbg.messageLines;
- if (this.cachedJsonCheck('output-lines', newMsg)) {
- return;
- }
- this.socket.emit('output-lines', newMsg);
-};
-
-DebugWebServer.prototype.emitBreakpoints = function () {
- if (!this.socket) { return; }
-
- var newMsg = { breakpoints: this.dbg.breakpoints };
- if (this.cachedJsonCheck('breakpoints', newMsg)) {
- return;
- }
- this.socket.emit('breakpoints', newMsg);
-};
-
-DebugWebServer.prototype.emitCallStack = function () {
- if (!this.socket) { return; }
-
- var newMsg = { callstack: this.dbg.callstack };
- if (this.cachedJsonCheck('callstack', newMsg)) {
- return;
- }
- this.socket.emit('callstack', newMsg);
-};
-
-DebugWebServer.prototype.emitLocals = function () {
- if (!this.socket) { return; }
-
- var newMsg = { locals: this.dbg.locals };
- if (this.cachedJsonCheck('locals', newMsg)) {
- return;
- }
- this.socket.emit('locals', newMsg);
-};
-
-/*
- * JSON debug proxy
- */
-
-function DebugProxy(serverPort) {
- this.serverPort = serverPort;
- this.server = null;
- this.socket = null;
- this.targetStream = null;
- this.inputParser = null;
-
- // preformatted dvalues
- this.dval_eom = formatDebugValue(DVAL_EOM);
- this.dval_req = formatDebugValue(DVAL_REQ);
- this.dval_rep = formatDebugValue(DVAL_REP);
- this.dval_nfy = formatDebugValue(DVAL_NFY);
- this.dval_err = formatDebugValue(DVAL_ERR);
-}
-
-DebugProxy.prototype.determineCommandNumber = function (cmdName, cmdNumber) {
- var ret;
- if (typeof cmdName === 'string') {
- ret = debugCommandNumbers[cmdName];
- } else if (typeof cmdName === 'number') {
- ret = cmdName;
- }
- ret = ret || cmdNumber;
- if (typeof ret !== 'number') {
- throw Error('cannot figure out command number for "' + cmdName + '" (' + cmdNumber + ')');
- }
- return ret;
-};
-
-DebugProxy.prototype.commandNumberToString = function (id) {
- return debugCommandNames[id] || String(id);
-};
-
-DebugProxy.prototype.formatDvalues = function (args) {
- if (!args) {
- return [];
- }
- return args.map(function (v) {
- return formatDebugValue(v);
- });
-};
-
-DebugProxy.prototype.writeJson = function (val) {
- this.socket.write(JSON.stringify(val) + '\n');
-};
-
-DebugProxy.prototype.writeJsonSafe = function (val) {
- try {
- this.writeJson(val);
- } catch (e) {
- console.log('Failed to write JSON in writeJsonSafe, ignoring: ' + e);
- }
-};
-
-DebugProxy.prototype.disconnectJsonClient = function () {
- if (this.socket) {
- this.socket.destroy();
- this.socket = null;
- }
-};
-
-DebugProxy.prototype.disconnectTarget = function () {
- if (this.inputParser) {
- this.inputParser.close();
- this.inputParser = null;
- }
- if (this.targetStream) {
- this.targetStream.destroy();
- this.targetStream = null;
- }
-};
-
-DebugProxy.prototype.run = function () {
- var _this = this;
-
- console.log('Waiting for client connections on port ' + this.serverPort);
- this.server = net.createServer(function (socket) {
- console.log('JSON proxy client connected');
-
- _this.disconnectJsonClient();
- _this.disconnectTarget();
-
- // A byline-parser is simple and good enough for now (assume
- // compact JSON with no newlines).
- var socketByline = byline(socket);
- _this.socket = socket;
-
- socketByline.on('data', function (line) {
- try {
- // console.log('Received json proxy input line: ' + line.toString('utf8'));
- var msg = JSON.parse(line.toString('utf8'));
- var first_dval;
- var args_dvalues = _this.formatDvalues(msg.args);
- var last_dval = _this.dval_eom;
- var cmd;
-
- if (msg.request) {
- // "request" can be a string or "true"
- first_dval = _this.dval_req;
- cmd = _this.determineCommandNumber(msg.request, msg.command);
- } else if (msg.reply) {
- first_dval = _this.dval_rep;
- } else if (msg.notify) {
- // "notify" can be a string or "true"
- first_dval = _this.dval_nfy;
- cmd = _this.determineCommandNumber(msg.notify, msg.command);
- } else if (msg.error) {
- first_dval = _this.dval_err;
- } else {
- throw new Error('Invalid input JSON message: ' + JSON.stringify(msg));
- }
-
- _this.targetStream.write(first_dval);
- if (cmd) {
- _this.targetStream.write(formatDebugValue(cmd));
- }
- args_dvalues.forEach(function (v) {
- _this.targetStream.write(v);
- });
- _this.targetStream.write(last_dval);
- } catch (e) {
- console.log(e);
-
- _this.writeJsonSafe({
- notify: '_Error',
- args: [ 'Failed to handle input json message: ' + e ]
- });
-
- _this.disconnectJsonClient();
- _this.disconnectTarget();
- }
- });
-
- _this.connectToTarget();
- }).listen(this.serverPort);
-};
-
-DebugProxy.prototype.connectToTarget = function () {
- var _this = this;
-
- console.log('Connecting to ' + optTargetHost + ':' + optTargetPort + '...');
- this.targetStream = new net.Socket();
- this.targetStream.connect(optTargetPort, optTargetHost, function () {
- console.log('Debug transport connected');
- });
-
- 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
- );
-
- // Don't add a 'value' key to numbers.
- this.inputParser.readableNumberValue = false;
-
- this.inputParser.on('transport-close', function () {
- console.log('Debug transport closed');
-
- _this.writeJsonSafe({
- notify: '_Disconnecting'
- });
-
- _this.disconnectJsonClient();
- _this.disconnectTarget();
- });
-
- this.inputParser.on('transport-error', function (err) {
- console.log('Debug transport error', err);
-
- _this.writeJsonSafe({
- notify: '_Error',
- args: [ String(err) ]
- });
- });
-
- this.inputParser.on('protocol-version', function (msg) {
- var ver = msg.protocolVersion;
- console.log('Debug version identification:', msg.versionIdentification);
-
- _this.writeJson({
- notify: '_TargetConnected',
- args: [ msg.versionIdentification ] // raw identification string
- });
-
- if (ver !== 1) {
- console.log('Protocol version ' + ver + ' unsupported, dropping connection');
- }
- });
-
- this.inputParser.on('debug-message', function (msg) {
- var t;
-
- //console.log(msg);
-
- if (typeof msg[0] !== 'object' || msg[0] === null) {
- throw new Error('unexpected initial dvalue: ' + msg[0]);
- } else if (msg[0].type === 'eom') {
- throw new Error('unexpected initial dvalue: ' + msg[0]);
- } else if (msg[0].type === 'req') {
- if (typeof msg[1] !== 'number') {
- throw new Error('unexpected request command number: ' + msg[1]);
- }
- t = {
- request: _this.commandNumberToString(msg[1]),
- command: msg[1],
- args: msg.slice(2, msg.length - 1)
- };
- _this.writeJson(t);
- } else if (msg[0].type === 'rep') {
- t = {
- reply: true,
- args: msg.slice(1, msg.length - 1)
- };
- _this.writeJson(t);
- } else if (msg[0].type === 'err') {
- t = {
- error: true,
- args: msg.slice(1, msg.length - 1)
- };
- _this.writeJson(t);
- } else if (msg[0].type === 'nfy') {
- if (typeof msg[1] !== 'number') {
- throw new Error('unexpected notify command number: ' + msg[1]);
- }
- t = {
- notify: _this.commandNumberToString(msg[1]),
- command: msg[1],
- args: msg.slice(2, msg.length - 1)
- };
- _this.writeJson(t);
- } else {
- throw new Error('unexpected initial dvalue: ' + msg[0]);
- }
- });
-
- this.inputParser.on('stats-update', function () {
- });
-};
-
-/*
- * Command line parsing and initialization
- */
-
-function main() {
- console.log('((o) Duktape debugger');
-
- // Parse arguments.
-
- var argv = require('minimist')(process.argv.slice(2));
- //console.dir(argv);
- if (argv['target-host']) {
- optTargetHost = argv['target-host'];
- }
- if (argv['target-port']) {
- optTargetPort = argv['target-port'];
- }
- if (argv['http-port']) {
- optHttpPort = argv['http-port'];
- }
- if (argv['json-proxy-port']) {
- optJsonProxyPort = argv['json-proxy-port'];
- }
- if (argv['json-proxy']) {
- optJsonProxy = argv['json-proxy'];
- }
- if (argv['source-dirs']) {
- optSourceSearchDirs = argv['source-dirs'].split(path.delimiter);
- }
- if (argv['dump-debug-read']) {
- optDumpDebugRead = argv['dump-debug-read'];
- }
- if (argv['dump-debug-write']) {
- optDumpDebugWrite = argv['dump-debug-write'];
- }
- if (argv['dump-debug-pretty']) {
- optDumpDebugPretty = argv['dump-debug-pretty'];
- }
- if (argv['log-messages']) {
- optLogMessages = true;
- }
-
- // Dump effective options. Also provides a list of option names.
-
- console.log('');
- console.log('Effective options:');
- console.log(' --target-host: ' + optTargetHost);
- console.log(' --target-port: ' + optTargetPort);
- console.log(' --http-port: ' + optHttpPort);
- console.log(' --json-proxy-port: ' + optJsonProxyPort);
- console.log(' --json-proxy: ' + optJsonProxy);
- console.log(' --source-dirs: ' + optSourceSearchDirs.join(' '));
- console.log(' --dump-debug-read: ' + optDumpDebugRead);
- console.log(' --dump-debug-write: ' + optDumpDebugWrite);
- console.log(' --dump-debug-pretty: ' + optDumpDebugPretty);
- console.log(' --log-messages: ' + optLogMessages);
- console.log('');
-
- // Create debugger and web UI singletons, tie them together and
- // start them.
-
- if (optJsonProxy) {
- console.log('Starting in JSON proxy mode, JSON port: ' + optJsonProxyPort);
-
- var prx = new DebugProxy(optJsonProxyPort);
- prx.run();
- } else {
- var dbg = new Debugger();
- var web = new DebugWebServer();
- dbg.web = web;
- web.dbg = dbg;
- dbg.run();
- web.run();
- }
-}
-
-main();