Current Dev State

static/js/ketcher2/node_modules/browserify-zlib/README.md

@@ -0,0 +1,22 @@
+# browserify-zlib
+
+Emulates Node's [zlib](http://nodejs.org/api/zlib.html) module for [Browserify](http://browserify.org)
+using [pako](https://github.com/nodeca/pako). It uses the actual Node source code and passes the Node zlib tests
+by emulating the C++ binding that actually calls zlib.
+
+[![browser support](https://ci.testling.com/devongovett/browserify-zlib.png)
+](https://ci.testling.com/devongovett/browserify-zlib)
+
+[![node tests](https://travis-ci.org/devongovett/browserify-zlib.svg)
+](https://travis-ci.org/devongovett/browserify-zlib)
+
+## Not implemented
+
+The following options/methods are not supported because pako does not support them yet.
+
+* The `params` method
+* The `dictionary` option
+
+## License
+
+MIT

static/js/ketcher2/node_modules/browserify-zlib/package.json

@@ -0,0 +1,74 @@
+{
+  "_from": "browserify-zlib@~0.1.2",
+  "_id": "browserify-zlib@0.1.4",
+  "_inBundle": false,
+  "_integrity": "sha1-uzX4pRn2AOD6a4SFJByXnQFB+y0=",
+  "_location": "/browserify-zlib",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "browserify-zlib@~0.1.2",
+    "name": "browserify-zlib",
+    "escapedName": "browserify-zlib",
+    "rawSpec": "~0.1.2",
+    "saveSpec": null,
+    "fetchSpec": "~0.1.2"
+  },
+  "_requiredBy": [
+    "/browserify"
+  ],
+  "_resolved": "https://registry.npmjs.org/browserify-zlib/-/browserify-zlib-0.1.4.tgz",
+  "_shasum": "bb35f8a519f600e0fa6b8485241c979d0141fb2d",
+  "_spec": "browserify-zlib@~0.1.2",
+  "_where": "/home/manfred/enviPath/ketcher2/ketcher/node_modules/browserify",
+  "author": {
+    "name": "Devon Govett",
+    "email": "devongovett@gmail.com"
+  },
+  "bugs": {
+    "url": "https://github.com/devongovett/browserify-zlib/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "pako": "~0.2.0"
+  },
+  "deprecated": false,
+  "description": "Full zlib module for browserify",
+  "devDependencies": {
+    "brfs": "^1.0.1",
+    "tape": "^2.12.3"
+  },
+  "directories": {
+    "test": "test"
+  },
+  "homepage": "https://github.com/devongovett/browserify-zlib#readme",
+  "keywords": [
+    "zlib",
+    "browserify"
+  ],
+  "license": "MIT",
+  "main": "src/index.js",
+  "name": "browserify-zlib",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/devongovett/browserify-zlib.git"
+  },
+  "scripts": {
+    "test": "node_modules/tape/bin/tape test/*.js"
+  },
+  "testling": {
+    "files": "test/*.js",
+    "browsers": [
+      "ie/6..latest",
+      "chrome/22..latest",
+      "firefox/16..latest",
+      "safari/latest",
+      "opera/11.0..latest",
+      "iphone/6",
+      "ipad/6",
+      "android-browser/latest"
+    ]
+  },
+  "version": "0.1.4"
+}

static/js/ketcher2/node_modules/browserify-zlib/src/binding.js

@@ -0,0 +1,236 @@
+var msg = require('pako/lib/zlib/messages');
+var zstream = require('pako/lib/zlib/zstream');
+var zlib_deflate = require('pako/lib/zlib/deflate.js');
+var zlib_inflate = require('pako/lib/zlib/inflate.js');
+var constants = require('pako/lib/zlib/constants');
+
+for (var key in constants) {
+  exports[key] = constants[key];
+}
+
+// zlib modes
+exports.NONE = 0;
+exports.DEFLATE = 1;
+exports.INFLATE = 2;
+exports.GZIP = 3;
+exports.GUNZIP = 4;
+exports.DEFLATERAW = 5;
+exports.INFLATERAW = 6;
+exports.UNZIP = 7;
+
+/**
+ * Emulate Node's zlib C++ layer for use by the JS layer in index.js
+ */
+function Zlib(mode) {
+  if (mode < exports.DEFLATE || mode > exports.UNZIP)
+    throw new TypeError("Bad argument");
+    
+  this.mode = mode;
+  this.init_done = false;
+  this.write_in_progress = false;
+  this.pending_close = false;
+  this.windowBits = 0;
+  this.level = 0;
+  this.memLevel = 0;
+  this.strategy = 0;
+  this.dictionary = null;
+}
+
+Zlib.prototype.init = function(windowBits, level, memLevel, strategy, dictionary) {
+  this.windowBits = windowBits;
+  this.level = level;
+  this.memLevel = memLevel;
+  this.strategy = strategy;
+  // dictionary not supported.
+  
+  if (this.mode === exports.GZIP || this.mode === exports.GUNZIP)
+    this.windowBits += 16;
+    
+  if (this.mode === exports.UNZIP)
+    this.windowBits += 32;
+    
+  if (this.mode === exports.DEFLATERAW || this.mode === exports.INFLATERAW)
+    this.windowBits = -this.windowBits;
+    
+  this.strm = new zstream();
+  
+  switch (this.mode) {
+    case exports.DEFLATE:
+    case exports.GZIP:
+    case exports.DEFLATERAW:
+      var status = zlib_deflate.deflateInit2(
+        this.strm,
+        this.level,
+        exports.Z_DEFLATED,
+        this.windowBits,
+        this.memLevel,
+        this.strategy
+      );
+      break;
+    case exports.INFLATE:
+    case exports.GUNZIP:
+    case exports.INFLATERAW:
+    case exports.UNZIP:
+      var status  = zlib_inflate.inflateInit2(
+        this.strm,
+        this.windowBits
+      );
+      break;
+    default:
+      throw new Error("Unknown mode " + this.mode);
+  }
+  
+  if (status !== exports.Z_OK) {
+    this._error(status);
+    return;
+  }
+  
+  this.write_in_progress = false;
+  this.init_done = true;
+};
+
+Zlib.prototype.params = function() {
+  throw new Error("deflateParams Not supported");
+};
+
+Zlib.prototype._writeCheck = function() {
+  if (!this.init_done)
+    throw new Error("write before init");
+    
+  if (this.mode === exports.NONE)
+    throw new Error("already finalized");
+    
+  if (this.write_in_progress)
+    throw new Error("write already in progress");
+    
+  if (this.pending_close)
+    throw new Error("close is pending");
+};
+
+Zlib.prototype.write = function(flush, input, in_off, in_len, out, out_off, out_len) {    
+  this._writeCheck();
+  this.write_in_progress = true;
+  
+  var self = this;
+  process.nextTick(function() {
+    self.write_in_progress = false;
+    var res = self._write(flush, input, in_off, in_len, out, out_off, out_len);
+    self.callback(res[0], res[1]);
+    
+    if (self.pending_close)
+      self.close();
+  });
+  
+  return this;
+};
+
+// set method for Node buffers, used by pako
+function bufferSet(data, offset) {
+  for (var i = 0; i < data.length; i++) {
+    this[offset + i] = data[i];
+  }
+}
+
+Zlib.prototype.writeSync = function(flush, input, in_off, in_len, out, out_off, out_len) {
+  this._writeCheck();
+  return this._write(flush, input, in_off, in_len, out, out_off, out_len);
+};
+
+Zlib.prototype._write = function(flush, input, in_off, in_len, out, out_off, out_len) {
+  this.write_in_progress = true;
+  
+  if (flush !== exports.Z_NO_FLUSH &&
+      flush !== exports.Z_PARTIAL_FLUSH &&
+      flush !== exports.Z_SYNC_FLUSH &&
+      flush !== exports.Z_FULL_FLUSH &&
+      flush !== exports.Z_FINISH &&
+      flush !== exports.Z_BLOCK) {
+    throw new Error("Invalid flush value");
+  }
+  
+  if (input == null) {
+    input = new Buffer(0);
+    in_len = 0;
+    in_off = 0;
+  }
+  
+  if (out._set)
+    out.set = out._set;
+  else
+    out.set = bufferSet;
+  
+  var strm = this.strm;
+  strm.avail_in = in_len;
+  strm.input = input;
+  strm.next_in = in_off;
+  strm.avail_out = out_len;
+  strm.output = out;
+  strm.next_out = out_off;
+  
+  switch (this.mode) {
+    case exports.DEFLATE:
+    case exports.GZIP:
+    case exports.DEFLATERAW:
+      var status = zlib_deflate.deflate(strm, flush);
+      break;
+    case exports.UNZIP:
+    case exports.INFLATE:
+    case exports.GUNZIP:
+    case exports.INFLATERAW:
+      var status = zlib_inflate.inflate(strm, flush);
+      break;
+    default:
+      throw new Error("Unknown mode " + this.mode);
+  }
+  
+  if (status !== exports.Z_STREAM_END && status !== exports.Z_OK) {
+    this._error(status);
+  }
+  
+  this.write_in_progress = false;
+  return [strm.avail_in, strm.avail_out];
+};
+
+Zlib.prototype.close = function() {
+  if (this.write_in_progress) {
+    this.pending_close = true;
+    return;
+  }
+  
+  this.pending_close = false;
+  
+  if (this.mode === exports.DEFLATE || this.mode === exports.GZIP || this.mode === exports.DEFLATERAW) {
+    zlib_deflate.deflateEnd(this.strm);
+  } else {
+    zlib_inflate.inflateEnd(this.strm);
+  }
+  
+  this.mode = exports.NONE;
+};
+
+Zlib.prototype.reset = function() {
+  switch (this.mode) {
+    case exports.DEFLATE:
+    case exports.DEFLATERAW:
+      var status = zlib_deflate.deflateReset(this.strm);
+      break;
+    case exports.INFLATE:
+    case exports.INFLATERAW:
+      var status = zlib_inflate.inflateReset(this.strm);
+      break;
+  }
+  
+  if (status !== exports.Z_OK) {
+    this._error(status);
+  }
+};
+
+Zlib.prototype._error = function(status) {
+  this.onerror(msg[status] + ': ' + this.strm.msg, status);
+  
+  this.write_in_progress = false;
+  if (this.pending_close)
+    this.close();
+};
+
+exports.Zlib = Zlib;

static/js/ketcher2/node_modules/browserify-zlib/src/index.js

@@ -0,0 +1,610 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// 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.
+
+var Transform = require('_stream_transform');
+
+var binding = require('./binding');
+var util = require('util');
+var assert = require('assert').ok;
+
+// zlib doesn't provide these, so kludge them in following the same
+// const naming scheme zlib uses.
+binding.Z_MIN_WINDOWBITS = 8;
+binding.Z_MAX_WINDOWBITS = 15;
+binding.Z_DEFAULT_WINDOWBITS = 15;
+
+// fewer than 64 bytes per chunk is stupid.
+// technically it could work with as few as 8, but even 64 bytes
+// is absurdly low.  Usually a MB or more is best.
+binding.Z_MIN_CHUNK = 64;
+binding.Z_MAX_CHUNK = Infinity;
+binding.Z_DEFAULT_CHUNK = (16 * 1024);
+
+binding.Z_MIN_MEMLEVEL = 1;
+binding.Z_MAX_MEMLEVEL = 9;
+binding.Z_DEFAULT_MEMLEVEL = 8;
+
+binding.Z_MIN_LEVEL = -1;
+binding.Z_MAX_LEVEL = 9;
+binding.Z_DEFAULT_LEVEL = binding.Z_DEFAULT_COMPRESSION;
+
+// expose all the zlib constants
+Object.keys(binding).forEach(function(k) {
+  if (k.match(/^Z/)) exports[k] = binding[k];
+});
+
+// translation table for return codes.
+exports.codes = {
+  Z_OK: binding.Z_OK,
+  Z_STREAM_END: binding.Z_STREAM_END,
+  Z_NEED_DICT: binding.Z_NEED_DICT,
+  Z_ERRNO: binding.Z_ERRNO,
+  Z_STREAM_ERROR: binding.Z_STREAM_ERROR,
+  Z_DATA_ERROR: binding.Z_DATA_ERROR,
+  Z_MEM_ERROR: binding.Z_MEM_ERROR,
+  Z_BUF_ERROR: binding.Z_BUF_ERROR,
+  Z_VERSION_ERROR: binding.Z_VERSION_ERROR
+};
+
+Object.keys(exports.codes).forEach(function(k) {
+  exports.codes[exports.codes[k]] = k;
+});
+
+exports.Deflate = Deflate;
+exports.Inflate = Inflate;
+exports.Gzip = Gzip;
+exports.Gunzip = Gunzip;
+exports.DeflateRaw = DeflateRaw;
+exports.InflateRaw = InflateRaw;
+exports.Unzip = Unzip;
+
+exports.createDeflate = function(o) {
+  return new Deflate(o);
+};
+
+exports.createInflate = function(o) {
+  return new Inflate(o);
+};
+
+exports.createDeflateRaw = function(o) {
+  return new DeflateRaw(o);
+};
+
+exports.createInflateRaw = function(o) {
+  return new InflateRaw(o);
+};
+
+exports.createGzip = function(o) {
+  return new Gzip(o);
+};
+
+exports.createGunzip = function(o) {
+  return new Gunzip(o);
+};
+
+exports.createUnzip = function(o) {
+  return new Unzip(o);
+};
+
+
+// Convenience methods.
+// compress/decompress a string or buffer in one step.
+exports.deflate = function(buffer, opts, callback) {
+  if (typeof opts === 'function') {
+    callback = opts;
+    opts = {};
+  }
+  return zlibBuffer(new Deflate(opts), buffer, callback);
+};
+
+exports.deflateSync = function(buffer, opts) {
+  return zlibBufferSync(new Deflate(opts), buffer);
+};
+
+exports.gzip = function(buffer, opts, callback) {
+  if (typeof opts === 'function') {
+    callback = opts;
+    opts = {};
+  }
+  return zlibBuffer(new Gzip(opts), buffer, callback);
+};
+
+exports.gzipSync = function(buffer, opts) {
+  return zlibBufferSync(new Gzip(opts), buffer);
+};
+
+exports.deflateRaw = function(buffer, opts, callback) {
+  if (typeof opts === 'function') {
+    callback = opts;
+    opts = {};
+  }
+  return zlibBuffer(new DeflateRaw(opts), buffer, callback);
+};
+
+exports.deflateRawSync = function(buffer, opts) {
+  return zlibBufferSync(new DeflateRaw(opts), buffer);
+};
+
+exports.unzip = function(buffer, opts, callback) {
+  if (typeof opts === 'function') {
+    callback = opts;
+    opts = {};
+  }
+  return zlibBuffer(new Unzip(opts), buffer, callback);
+};
+
+exports.unzipSync = function(buffer, opts) {
+  return zlibBufferSync(new Unzip(opts), buffer);
+};
+
+exports.inflate = function(buffer, opts, callback) {
+  if (typeof opts === 'function') {
+    callback = opts;
+    opts = {};
+  }
+  return zlibBuffer(new Inflate(opts), buffer, callback);
+};
+
+exports.inflateSync = function(buffer, opts) {
+  return zlibBufferSync(new Inflate(opts), buffer);
+};
+
+exports.gunzip = function(buffer, opts, callback) {
+  if (typeof opts === 'function') {
+    callback = opts;
+    opts = {};
+  }
+  return zlibBuffer(new Gunzip(opts), buffer, callback);
+};
+
+exports.gunzipSync = function(buffer, opts) {
+  return zlibBufferSync(new Gunzip(opts), buffer);
+};
+
+exports.inflateRaw = function(buffer, opts, callback) {
+  if (typeof opts === 'function') {
+    callback = opts;
+    opts = {};
+  }
+  return zlibBuffer(new InflateRaw(opts), buffer, callback);
+};
+
+exports.inflateRawSync = function(buffer, opts) {
+  return zlibBufferSync(new InflateRaw(opts), buffer);
+};
+
+function zlibBuffer(engine, buffer, callback) {
+  var buffers = [];
+  var nread = 0;
+
+  engine.on('error', onError);
+  engine.on('end', onEnd);
+
+  engine.end(buffer);
+  flow();
+
+  function flow() {
+    var chunk;
+    while (null !== (chunk = engine.read())) {
+      buffers.push(chunk);
+      nread += chunk.length;
+    }
+    engine.once('readable', flow);
+  }
+
+  function onError(err) {
+    engine.removeListener('end', onEnd);
+    engine.removeListener('readable', flow);
+    callback(err);
+  }
+
+  function onEnd() {
+    var buf = Buffer.concat(buffers, nread);
+    buffers = [];
+    callback(null, buf);
+    engine.close();
+  }
+}
+
+function zlibBufferSync(engine, buffer) {
+  if (typeof buffer === 'string')
+    buffer = new Buffer(buffer);
+  if (!Buffer.isBuffer(buffer))
+    throw new TypeError('Not a string or buffer');
+
+  var flushFlag = binding.Z_FINISH;
+
+  return engine._processChunk(buffer, flushFlag);
+}
+
+// generic zlib
+// minimal 2-byte header
+function Deflate(opts) {
+  if (!(this instanceof Deflate)) return new Deflate(opts);
+  Zlib.call(this, opts, binding.DEFLATE);
+}
+
+function Inflate(opts) {
+  if (!(this instanceof Inflate)) return new Inflate(opts);
+  Zlib.call(this, opts, binding.INFLATE);
+}
+
+
+
+// gzip - bigger header, same deflate compression
+function Gzip(opts) {
+  if (!(this instanceof Gzip)) return new Gzip(opts);
+  Zlib.call(this, opts, binding.GZIP);
+}
+
+function Gunzip(opts) {
+  if (!(this instanceof Gunzip)) return new Gunzip(opts);
+  Zlib.call(this, opts, binding.GUNZIP);
+}
+
+
+
+// raw - no header
+function DeflateRaw(opts) {
+  if (!(this instanceof DeflateRaw)) return new DeflateRaw(opts);
+  Zlib.call(this, opts, binding.DEFLATERAW);
+}
+
+function InflateRaw(opts) {
+  if (!(this instanceof InflateRaw)) return new InflateRaw(opts);
+  Zlib.call(this, opts, binding.INFLATERAW);
+}
+
+
+// auto-detect header.
+function Unzip(opts) {
+  if (!(this instanceof Unzip)) return new Unzip(opts);
+  Zlib.call(this, opts, binding.UNZIP);
+}
+
+
+// the Zlib class they all inherit from
+// This thing manages the queue of requests, and returns
+// true or false if there is anything in the queue when
+// you call the .write() method.
+
+function Zlib(opts, mode) {
+  this._opts = opts = opts || {};
+  this._chunkSize = opts.chunkSize || exports.Z_DEFAULT_CHUNK;
+
+  Transform.call(this, opts);
+
+  if (opts.flush) {
+    if (opts.flush !== binding.Z_NO_FLUSH &&
+        opts.flush !== binding.Z_PARTIAL_FLUSH &&
+        opts.flush !== binding.Z_SYNC_FLUSH &&
+        opts.flush !== binding.Z_FULL_FLUSH &&
+        opts.flush !== binding.Z_FINISH &&
+        opts.flush !== binding.Z_BLOCK) {
+      throw new Error('Invalid flush flag: ' + opts.flush);
+    }
+  }
+  this._flushFlag = opts.flush || binding.Z_NO_FLUSH;
+
+  if (opts.chunkSize) {
+    if (opts.chunkSize < exports.Z_MIN_CHUNK ||
+        opts.chunkSize > exports.Z_MAX_CHUNK) {
+      throw new Error('Invalid chunk size: ' + opts.chunkSize);
+    }
+  }
+
+  if (opts.windowBits) {
+    if (opts.windowBits < exports.Z_MIN_WINDOWBITS ||
+        opts.windowBits > exports.Z_MAX_WINDOWBITS) {
+      throw new Error('Invalid windowBits: ' + opts.windowBits);
+    }
+  }
+
+  if (opts.level) {
+    if (opts.level < exports.Z_MIN_LEVEL ||
+        opts.level > exports.Z_MAX_LEVEL) {
+      throw new Error('Invalid compression level: ' + opts.level);
+    }
+  }
+
+  if (opts.memLevel) {
+    if (opts.memLevel < exports.Z_MIN_MEMLEVEL ||
+        opts.memLevel > exports.Z_MAX_MEMLEVEL) {
+      throw new Error('Invalid memLevel: ' + opts.memLevel);
+    }
+  }
+
+  if (opts.strategy) {
+    if (opts.strategy != exports.Z_FILTERED &&
+        opts.strategy != exports.Z_HUFFMAN_ONLY &&
+        opts.strategy != exports.Z_RLE &&
+        opts.strategy != exports.Z_FIXED &&
+        opts.strategy != exports.Z_DEFAULT_STRATEGY) {
+      throw new Error('Invalid strategy: ' + opts.strategy);
+    }
+  }
+
+  if (opts.dictionary) {
+    if (!Buffer.isBuffer(opts.dictionary)) {
+      throw new Error('Invalid dictionary: it should be a Buffer instance');
+    }
+  }
+
+  this._binding = new binding.Zlib(mode);
+
+  var self = this;
+  this._hadError = false;
+  this._binding.onerror = function(message, errno) {
+    // there is no way to cleanly recover.
+    // continuing only obscures problems.
+    self._binding = null;
+    self._hadError = true;
+
+    var error = new Error(message);
+    error.errno = errno;
+    error.code = exports.codes[errno];
+    self.emit('error', error);
+  };
+
+  var level = exports.Z_DEFAULT_COMPRESSION;
+  if (typeof opts.level === 'number') level = opts.level;
+
+  var strategy = exports.Z_DEFAULT_STRATEGY;
+  if (typeof opts.strategy === 'number') strategy = opts.strategy;
+
+  this._binding.init(opts.windowBits || exports.Z_DEFAULT_WINDOWBITS,
+                     level,
+                     opts.memLevel || exports.Z_DEFAULT_MEMLEVEL,
+                     strategy,
+                     opts.dictionary);
+
+  this._buffer = new Buffer(this._chunkSize);
+  this._offset = 0;
+  this._closed = false;
+  this._level = level;
+  this._strategy = strategy;
+
+  this.once('end', this.close);
+}
+
+util.inherits(Zlib, Transform);
+
+Zlib.prototype.params = function(level, strategy, callback) {
+  if (level < exports.Z_MIN_LEVEL ||
+      level > exports.Z_MAX_LEVEL) {
+    throw new RangeError('Invalid compression level: ' + level);
+  }
+  if (strategy != exports.Z_FILTERED &&
+      strategy != exports.Z_HUFFMAN_ONLY &&
+      strategy != exports.Z_RLE &&
+      strategy != exports.Z_FIXED &&
+      strategy != exports.Z_DEFAULT_STRATEGY) {
+    throw new TypeError('Invalid strategy: ' + strategy);
+  }
+
+  if (this._level !== level || this._strategy !== strategy) {
+    var self = this;
+    this.flush(binding.Z_SYNC_FLUSH, function() {
+      self._binding.params(level, strategy);
+      if (!self._hadError) {
+        self._level = level;
+        self._strategy = strategy;
+        if (callback) callback();
+      }
+    });
+  } else {
+    process.nextTick(callback);
+  }
+};
+
+Zlib.prototype.reset = function() {
+  return this._binding.reset();
+};
+
+// This is the _flush function called by the transform class,
+// internally, when the last chunk has been written.
+Zlib.prototype._flush = function(callback) {
+  this._transform(new Buffer(0), '', callback);
+};
+
+Zlib.prototype.flush = function(kind, callback) {
+  var ws = this._writableState;
+
+  if (typeof kind === 'function' || (kind === void 0 && !callback)) {
+    callback = kind;
+    kind = binding.Z_FULL_FLUSH;
+  }
+
+  if (ws.ended) {
+    if (callback)
+      process.nextTick(callback);
+  } else if (ws.ending) {
+    if (callback)
+      this.once('end', callback);
+  } else if (ws.needDrain) {
+    var self = this;
+    this.once('drain', function() {
+      self.flush(callback);
+    });
+  } else {
+    this._flushFlag = kind;
+    this.write(new Buffer(0), '', callback);
+  }
+};
+
+Zlib.prototype.close = function(callback) {
+  if (callback)
+    process.nextTick(callback);
+
+  if (this._closed)
+    return;
+
+  this._closed = true;
+
+  this._binding.close();
+
+  var self = this;
+  process.nextTick(function() {
+    self.emit('close');
+  });
+};
+
+Zlib.prototype._transform = function(chunk, encoding, cb) {
+  var flushFlag;
+  var ws = this._writableState;
+  var ending = ws.ending || ws.ended;
+  var last = ending && (!chunk || ws.length === chunk.length);
+
+  if (!chunk === null && !Buffer.isBuffer(chunk))
+    return cb(new Error('invalid input'));
+
+  // If it's the last chunk, or a final flush, we use the Z_FINISH flush flag.
+  // If it's explicitly flushing at some other time, then we use
+  // Z_FULL_FLUSH. Otherwise, use Z_NO_FLUSH for maximum compression
+  // goodness.
+  if (last)
+    flushFlag = binding.Z_FINISH;
+  else {
+    flushFlag = this._flushFlag;
+    // once we've flushed the last of the queue, stop flushing and
+    // go back to the normal behavior.
+    if (chunk.length >= ws.length) {
+      this._flushFlag = this._opts.flush || binding.Z_NO_FLUSH;
+    }
+  }
+
+  var self = this;
+  this._processChunk(chunk, flushFlag, cb);
+};
+
+Zlib.prototype._processChunk = function(chunk, flushFlag, cb) {
+  var availInBefore = chunk && chunk.length;
+  var availOutBefore = this._chunkSize - this._offset;
+  var inOff = 0;
+
+  var self = this;
+
+  var async = typeof cb === 'function';
+
+  if (!async) {
+    var buffers = [];
+    var nread = 0;
+
+    var error;
+    this.on('error', function(er) {
+      error = er;
+    });
+
+    do {
+      var res = this._binding.writeSync(flushFlag,
+                                        chunk, // in
+                                        inOff, // in_off
+                                        availInBefore, // in_len
+                                        this._buffer, // out
+                                        this._offset, //out_off
+                                        availOutBefore); // out_len
+    } while (!this._hadError && callback(res[0], res[1]));
+
+    if (this._hadError) {
+      throw error;
+    }
+
+    var buf = Buffer.concat(buffers, nread);
+    this.close();
+
+    return buf;
+  }
+
+  var req = this._binding.write(flushFlag,
+                                chunk, // in
+                                inOff, // in_off
+                                availInBefore, // in_len
+                                this._buffer, // out
+                                this._offset, //out_off
+                                availOutBefore); // out_len
+
+  req.buffer = chunk;
+  req.callback = callback;
+
+  function callback(availInAfter, availOutAfter) {
+    if (self._hadError)
+      return;
+
+    var have = availOutBefore - availOutAfter;
+    assert(have >= 0, 'have should not go down');
+
+    if (have > 0) {
+      var out = self._buffer.slice(self._offset, self._offset + have);
+      self._offset += have;
+      // serve some output to the consumer.
+      if (async) {
+        self.push(out);
+      } else {
+        buffers.push(out);
+        nread += out.length;
+      }
+    }
+
+    // exhausted the output buffer, or used all the input create a new one.
+    if (availOutAfter === 0 || self._offset >= self._chunkSize) {
+      availOutBefore = self._chunkSize;
+      self._offset = 0;
+      self._buffer = new Buffer(self._chunkSize);
+    }
+
+    if (availOutAfter === 0) {
+      // Not actually done.  Need to reprocess.
+      // Also, update the availInBefore to the availInAfter value,
+      // so that if we have to hit it a third (fourth, etc.) time,
+      // it'll have the correct byte counts.
+      inOff += (availInBefore - availInAfter);
+      availInBefore = availInAfter;
+
+      if (!async)
+        return true;
+
+      var newReq = self._binding.write(flushFlag,
+                                       chunk,
+                                       inOff,
+                                       availInBefore,
+                                       self._buffer,
+                                       self._offset,
+                                       self._chunkSize);
+      newReq.callback = callback; // this same function
+      newReq.buffer = chunk;
+      return;
+    }
+
+    if (!async)
+      return false;
+
+    // finished with the chunk.
+    cb();
+  }
+};
+
+util.inherits(Deflate, Zlib);
+util.inherits(Inflate, Zlib);
+util.inherits(Gzip, Zlib);
+util.inherits(Gunzip, Zlib);
+util.inherits(DeflateRaw, Zlib);
+util.inherits(InflateRaw, Zlib);
+util.inherits(Unzip, Zlib);

static/js/ketcher2/node_modules/browserify-zlib/test/fixtures/empty.txt

@@ -0,0 +1 @@
+

static/js/ketcher2/node_modules/browserify-zlib/test/ignored/test-zlib-dictionary-fail.js

@@ -0,0 +1,48 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// 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.
+
+var common = require('../common.js');
+var assert = require('assert');
+var zlib = require('zlib');
+
+// Should raise an error, not trigger an assertion in src/node_zlib.cc
+(function() {
+  var stream = zlib.createInflate();
+
+  stream.on('error', common.mustCall(function(err) {
+    assert(/Missing dictionary/.test(err.message));
+  }));
+
+  // String "test" encoded with dictionary "dict".
+  stream.write(Buffer([0x78,0xBB,0x04,0x09,0x01,0xA5]));
+})();
+
+// Should raise an error, not trigger an assertion in src/node_zlib.cc
+(function() {
+  var stream = zlib.createInflate({ dictionary: Buffer('fail') });
+
+  stream.on('error', common.mustCall(function(err) {
+    assert(/Bad dictionary/.test(err.message));
+  }));
+
+  // String "test" encoded with dictionary "dict".
+  stream.write(Buffer([0x78,0xBB,0x04,0x09,0x01,0xA5]));
+})();

static/js/ketcher2/node_modules/browserify-zlib/test/ignored/test-zlib-dictionary.js

@@ -0,0 +1,95 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// 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.
+
+// test compression/decompression with dictionary
+
+var common = require('../common.js');
+var assert = require('assert');
+var zlib = require('zlib');
+var path = require('path');
+
+var spdyDict = new Buffer([
+  'optionsgetheadpostputdeletetraceacceptaccept-charsetaccept-encodingaccept-',
+  'languageauthorizationexpectfromhostif-modified-sinceif-matchif-none-matchi',
+  'f-rangeif-unmodifiedsincemax-forwardsproxy-authorizationrangerefererteuser',
+  '-agent10010120020120220320420520630030130230330430530630740040140240340440',
+  '5406407408409410411412413414415416417500501502503504505accept-rangesageeta',
+  'glocationproxy-authenticatepublicretry-afterservervarywarningwww-authentic',
+  'ateallowcontent-basecontent-encodingcache-controlconnectiondatetrailertran',
+  'sfer-encodingupgradeviawarningcontent-languagecontent-lengthcontent-locati',
+  'oncontent-md5content-rangecontent-typeetagexpireslast-modifiedset-cookieMo',
+  'ndayTuesdayWednesdayThursdayFridaySaturdaySundayJanFebMarAprMayJunJulAugSe',
+  'pOctNovDecchunkedtext/htmlimage/pngimage/jpgimage/gifapplication/xmlapplic',
+  'ation/xhtmltext/plainpublicmax-agecharset=iso-8859-1utf-8gzipdeflateHTTP/1',
+  '.1statusversionurl\0'
+].join(''));
+
+var deflate = zlib.createDeflate({ dictionary: spdyDict });
+
+var input = [
+  'HTTP/1.1 200 Ok',
+  'Server: node.js',
+  'Content-Length: 0',
+  ''
+].join('\r\n');
+
+var called = 0;
+
+//
+// We'll use clean-new inflate stream each time
+// and .reset() old dirty deflate one
+//
+function run(num) {
+  var inflate = zlib.createInflate({ dictionary: spdyDict });
+
+  if (num === 2) {
+    deflate.reset();
+    deflate.removeAllListeners('data');
+  }
+
+  // Put data into deflate stream
+  deflate.on('data', function(chunk) {
+    inflate.write(chunk);
+  });
+
+  // Get data from inflate stream
+  var output = [];
+  inflate.on('data', function(chunk) {
+    output.push(chunk);
+  });
+  inflate.on('end', function() {
+    called++;
+
+    assert.equal(output.join(''), input);
+
+    if (num < 2) run(num + 1);
+  });
+
+  deflate.write(input);
+  deflate.flush(function() {
+    inflate.end();
+  });
+}
+run(1);
+
+process.on('exit', function() {
+  assert.equal(called, 2);
+});

static/js/ketcher2/node_modules/browserify-zlib/test/ignored/test-zlib-params.js

@@ -0,0 +1,33 @@
+var common = require('../common.js');
+var assert = require('assert');
+var zlib = require('zlib');
+var path = require('path');
+var fs = require('fs');
+
+var file = fs.readFileSync(path.resolve(common.fixturesDir, 'person.jpg')),
+    chunkSize = 24 * 1024,
+    opts = { level: 9, strategy: zlib.Z_DEFAULT_STRATEGY },
+    deflater = zlib.createDeflate(opts);
+
+var chunk1 = file.slice(0, chunkSize),
+    chunk2 = file.slice(chunkSize),
+    blkhdr = new Buffer([0x00, 0x48, 0x82, 0xb7, 0x7d]),
+    expected = Buffer.concat([blkhdr, chunk2]),
+    actual;
+
+deflater.write(chunk1, function() {
+  deflater.params(0, zlib.Z_DEFAULT_STRATEGY, function() {
+    while (deflater.read());
+    deflater.end(chunk2, function() {
+      var bufs = [], buf;
+      while (buf = deflater.read())
+        bufs.push(buf);
+      actual = Buffer.concat(bufs);
+    });
+  });
+  while (deflater.read());
+});
+
+process.once('exit', function() {
+  assert.deepEqual(actual, expected);
+});

static/js/ketcher2/node_modules/browserify-zlib/test/package.json

@@ -0,0 +1,7 @@
+{
+  "browserify": {
+    "transform": [
+      "brfs"
+    ]
+  }
+}

static/js/ketcher2/node_modules/browserify-zlib/test/test-zlib-close-after-write.js

@@ -0,0 +1,35 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// 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.
+
+var tape = require('tape');
+var zlib = require('../');
+
+tape(function(t) {
+  t.plan(1);
+  
+  zlib.gzip('hello', function(err, out) {
+    var unzip = zlib.createGunzip();
+    unzip.write(out);
+    unzip.close(function() {
+      t.ok(true);
+    });
+  });
+});

static/js/ketcher2/node_modules/browserify-zlib/test/test-zlib-convenience-methods.js

@@ -0,0 +1,70 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// 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.
+
+// test convenience methods with and without options supplied
+
+var tape = require('tape');
+var zlib = require('../');
+
+var expect = 'blahblahblahblahblahblah';
+var opts = {
+  level: 9,
+  chunkSize: 1024,
+};
+
+[
+  ['gzip', 'gunzip'],
+  ['gzip', 'unzip'],
+  ['deflate', 'inflate'],
+  ['deflateRaw', 'inflateRaw'],
+].forEach(function(method) {
+  tape(method.join(' '), function(t) {
+    t.plan(4);
+    
+    zlib[method[0]](expect, opts, function(err, result) {
+      zlib[method[1]](result, opts, function(err, result) {
+        t.deepEqual(result, new Buffer(expect),
+          'Should get original string after ' +
+          method[0] + '/' + method[1] + ' with options.');
+      });
+    });
+
+    zlib[method[0]](expect, function(err, result) {
+      zlib[method[1]](result, function(err, result) {
+        t.deepEqual(result, new Buffer(expect),
+          'Should get original string after ' +
+          method[0] + '/' + method[1] + ' without options.');
+      });
+    });
+
+    var result = zlib[method[0] + 'Sync'](expect, opts);
+    result = zlib[method[1] + 'Sync'](result, opts);
+    t.deepEqual(result, new Buffer(expect),
+      'Should get original string after ' +
+      method[0] + '/' + method[1] + ' with options.');
+    
+    result = zlib[method[0] + 'Sync'](expect);
+    result = zlib[method[1] + 'Sync'](result);
+    t.deepEqual(result, new Buffer(expect),
+      'Should get original string after ' +
+      method[0] + '/' + method[1] + ' without options.');
+  });
+});

static/js/ketcher2/node_modules/browserify-zlib/test/test-zlib-from-string.js

@@ -0,0 +1,89 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// 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.
+
+// test compressing and uncompressing a string with zlib
+
+var tape = require('tape');
+var zlib = require('../');
+
+var inputString = '\u03A9\u03A9Lorem ipsum dolor sit amet, consectetur adipiscing el' +
+    'it. Morbi faucibus, purus at gravida dictum, libero arcu convallis la' +
+    'cus, in commodo libero metus eu nisi. Nullam commodo, neque nec porta' +
+    ' placerat, nisi est fermentum augue, vitae gravida tellus sapien sit ' +
+    'amet tellus. Aenean non diam orci. Proin quis elit turpis. Suspendiss' +
+    'e non diam ipsum. Suspendisse nec ullamcorper odio. Vestibulum arcu m' +
+    'i, sodales non suscipit id, ultrices ut massa. Sed ac sem sit amet ar' +
+    'cu malesuada fermentum. Nunc sed. ';
+var expectedBase64Deflate = 'eJxdUUtOQzEMvMoc4OndgT0gJCT2buJWlpI4jePeqZfpm' +
+    'XAKLRKbLOzx/HK73q6vOrhCunlF1qIDJhNUeW5I2ozT5OkDlKWLJWkncJG5403HQXAkT3' +
+    'Jw29B9uIEmToMukglZ0vS6ociBh4JG8sV4oVLEUCitK2kxq1WzPnChHDzsaGKy491Lofo' +
+    'AbWh8do43oeuYhB5EPCjcLjzYJo48KrfQBvnJecNFJvHT1+RSQsGoC7dn2t/xjhduTA1N' +
+    'WyQIZR0pbHwMDatnD+crPqKSqGPHp1vnlsWM/07ubf7bheF7kqSj84Bm0R1fYTfaK8vqq' +
+    'qfKBtNMhe3OZh6N95CTvMX5HJJi4xOVzCgUOIMSLH7wmeOHaFE4RdpnGavKtrB5xzfO/Ll9';
+var expectedBase64Gzip = 'H4sIAAAAAAAAA11RS05DMQy8yhzg6d2BPSAkJPZu4laWkjiN' +
+    '496pl+mZcAotEpss7PH8crverq86uEK6eUXWogMmE1R5bkjajNPk6QOUpYslaSdwkbnjT' +
+    'cdBcCRPcnDb0H24gSZOgy6SCVnS9LqhyIGHgkbyxXihUsRQKK0raTGrVbM+cKEcPOxoYr' +
+    'Lj3Uuh+gBtaHx2jjeh65iEHkQ8KNwuPNgmjjwqt9AG+cl5w0Um8dPX5FJCwagLt2fa3/G' +
+    'OF25MDU1bJAhlHSlsfAwNq2cP5ys+opKoY8enW+eWxYz/Tu5t/tuF4XuSpKPzgGbRHV9h' +
+    'N9ory+qqp8oG00yF7c5mHo33kJO8xfkckmLjE5XMKBQ4gxIsfvCZ44doUThF2mcZq8q2s' +
+    'HnHNzRtagj5AQAA';
+
+tape('deflate', function(t) {
+  t.plan(1);
+  zlib.deflate(inputString, function(err, buffer) {
+    t.equal(buffer.toString('base64'), expectedBase64Deflate,
+                 'deflate encoded string should match');
+  });
+});
+
+tape('gzip', function(t) {
+  t.plan(1);
+  zlib.gzip(inputString, function(err, buffer) {
+    // Can't actually guarantee that we'll get exactly the same
+    // deflated bytes when we compress a string, since the header
+    // depends on stuff other than the input string itself.
+    // However, decrypting it should definitely yield the same
+    // result that we're expecting, and this should match what we get
+    // from inflating the known valid deflate data.
+    zlib.gunzip(buffer, function(err, gunzipped) {
+      t.equal(gunzipped.toString(), inputString,
+                   'Should get original string after gzip/gunzip');
+    });
+  });
+});
+
+tape('unzip deflate', function(t) {
+  t.plan(1);
+  var buffer = new Buffer(expectedBase64Deflate, 'base64');
+  zlib.unzip(buffer, function(err, buffer) {
+    t.equal(buffer.toString(), inputString,
+                 'decoded inflated string should match');
+  });
+});
+
+tape('unzip gzip', function(t) {
+  t.plan(1);
+  buffer = new Buffer(expectedBase64Gzip, 'base64');
+  zlib.unzip(buffer, function(err, buffer) {
+    t.equal(buffer.toString(), inputString,
+                 'decoded gunzipped string should match');
+  });
+});

static/js/ketcher2/node_modules/browserify-zlib/test/test-zlib-invalid-input.js

@@ -0,0 +1,62 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// 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.
+
+// test uncompressing invalid input
+
+var tape = require('tape'),
+    zlib = require('../');
+
+tape('non-strings', function(t) {
+  var nonStringInputs = [1, true, {a: 1}, ['a']];
+  t.plan(12);
+
+  nonStringInputs.forEach(function(input) {
+    // zlib.gunzip should not throw an error when called with bad input.
+    t.doesNotThrow(function() {
+      zlib.gunzip(input, function(err, buffer) {
+        // zlib.gunzip should pass the error to the callback.
+        t.ok(err);
+      });
+    });
+  });
+});
+
+tape('unzips', function(t) {
+  // zlib.Unzip classes need to get valid data, or else they'll throw.
+  var unzips = [ zlib.Unzip(),
+                 zlib.Gunzip(),
+                 zlib.Inflate(),
+                 zlib.InflateRaw() ];
+                 
+  t.plan(4);
+  unzips.forEach(function (uz, i) {
+    uz.on('error', function(er) {
+      t.ok(er);
+    });
+
+    uz.on('end', function(er) {
+      throw new Error('end event should not be emitted '+uz.constructor.name);
+    });
+
+    // this will trigger error event
+    uz.write('this is not valid compressed data.');
+  });
+});

static/js/ketcher2/node_modules/browserify-zlib/test/test-zlib-random-byte-pipes.js

@@ -0,0 +1,176 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// 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.
+
+var crypto = require('crypto');
+var stream = require('stream');
+var Stream = stream.Stream;
+var util = require('util');
+var tape = require('tape');
+var zlib = require('../');
+
+
+
+// emit random bytes, and keep a shasum
+function RandomReadStream(opt) {
+  Stream.call(this);
+
+  this.readable = true;
+  this._paused = false;
+  this._processing = false;
+
+  this._hasher = crypto.createHash('sha1');
+  opt = opt || {};
+
+  // base block size.
+  opt.block = opt.block || 256 * 1024;
+
+  // total number of bytes to emit
+  opt.total = opt.total || 256 * 1024 * 1024;
+  this._remaining = opt.total;
+
+  // how variable to make the block sizes
+  opt.jitter = opt.jitter || 1024;
+
+  this._opt = opt;
+
+  this._process = this._process.bind(this);
+
+  process.nextTick(this._process);
+}
+
+util.inherits(RandomReadStream, Stream);
+
+RandomReadStream.prototype.pause = function() {
+  this._paused = true;
+  this.emit('pause');
+};
+
+RandomReadStream.prototype.resume = function() {
+  this._paused = false;
+  this.emit('resume');
+  this._process();
+};
+
+RandomReadStream.prototype._process = function() {
+  if (this._processing) return;
+  if (this._paused) return;
+
+  this._processing = true;
+
+  if (!this._remaining) {
+    this._hash = this._hasher.digest('hex').toLowerCase().trim();
+    this._processing = false;
+
+    this.emit('end');
+    return;
+  }
+
+  // figure out how many bytes to output
+  // if finished, then just emit end.
+  var block = this._opt.block;
+  var jitter = this._opt.jitter;
+  if (jitter) {
+    block += Math.ceil(Math.random() * jitter - (jitter / 2));
+  }
+  block = Math.min(block, this._remaining);
+  var buf = new Buffer(block);
+  for (var i = 0; i < block; i++) {
+    buf[i] = Math.random() * 256;
+  }
+
+  this._hasher.update(buf);
+
+  this._remaining -= block;
+
+  this._processing = false;
+
+  this.emit('data', buf);
+  process.nextTick(this._process);
+};
+
+
+// a filter that just verifies a shasum
+function HashStream() {
+  Stream.call(this);
+
+  this.readable = this.writable = true;
+  this._hasher = crypto.createHash('sha1');
+}
+
+util.inherits(HashStream, Stream);
+
+HashStream.prototype.write = function(c) {
+  // Simulate the way that an fs.ReadStream returns false
+  // on *every* write like a jerk, only to resume a
+  // moment later.
+  this._hasher.update(c);
+  process.nextTick(this.resume.bind(this));
+  return false;
+};
+
+HashStream.prototype.resume = function() {
+  this.emit('resume');
+  process.nextTick(this.emit.bind(this, 'drain'));
+};
+
+HashStream.prototype.end = function(c) {
+  if (c) {
+    this.write(c);
+  }
+  this._hash = this._hasher.digest('hex').toLowerCase().trim();
+  this.emit('data', this._hash);
+  this.emit('end');
+};
+
+tape('random byte pipes', function(t) {
+  var inp = new RandomReadStream({ total: 1024, block: 256, jitter: 16 });
+  var out = new HashStream();
+  var gzip = zlib.createGzip();
+  var gunz = zlib.createGunzip();
+
+  inp.pipe(gzip).pipe(gunz).pipe(out);
+
+  inp.on('data', function(c) {
+    t.ok(c.length);
+  });
+
+  gzip.on('data', function(c) {
+    t.ok(c.length);
+  });
+
+  gunz.on('data', function(c) {
+    t.ok(c.length);
+  });
+
+  out.on('data', function(c) {
+    t.ok(c.length);
+  });
+
+  out.on('data', function(c) {
+    t.ok(c.length);
+    t.equal(c, inp._hash, 'hashes should match');
+  });
+  
+  out.on('end', function() {
+    t.end();
+  })
+});
+

static/js/ketcher2/node_modules/browserify-zlib/test/test-zlib-write-after-flush.js

@@ -0,0 +1,55 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// 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.
+
+var tape = require('tape');
+var zlib = require('../');
+var fs = require('fs');
+
+tape('write after flush', function(t) {
+  t.plan(2);
+  
+  var gzip = zlib.createGzip();
+  var gunz = zlib.createUnzip();
+
+  gzip.pipe(gunz);
+
+  var output = '';
+  var input = 'A line of data\n';
+  gunz.setEncoding('utf8');
+  gunz.on('data', function(c) {
+    output += c;
+  });
+  
+  gunz.on('end', function() {
+    t.equal(output, input);
+    
+    // Make sure that the flush flag was set back to normal
+    t.equal(gzip._flushFlag, zlib.Z_NO_FLUSH);
+  });
+  
+  // make sure that flush/write doesn't trigger an assert failure
+  gzip.flush(); write();
+  function write() {
+    gzip.write(input);
+    gzip.end();
+    gunz.read(0);
+  }
+});

static/js/ketcher2/node_modules/browserify-zlib/test/test-zlib-zero-byte.js

@@ -0,0 +1,41 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// 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.
+
+var tape = require('tape');
+var zlib = require('../');
+
+tape('zero byte', function(t) {
+  t.plan(2);
+  var gz = zlib.Gzip()
+  var emptyBuffer = new Buffer(0);
+  var received = 0;
+  gz.on('data', function(c) {
+    received += c.length;
+  });
+  gz.on('end', function() {
+    t.equal(received, 20);
+  });
+  gz.on('finish', function() {
+    t.ok(true);
+  });
+  gz.write(emptyBuffer);
+  gz.end();
+});

static/js/ketcher2/node_modules/browserify-zlib/test/test-zlib.js

@@ -0,0 +1,206 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// 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.
+
+var assert = require('assert');
+var zlib = require('../');
+var path = require('path');
+
+var zlibPairs =
+    [[zlib.Deflate, zlib.Inflate],
+     [zlib.Gzip, zlib.Gunzip],
+     [zlib.Deflate, zlib.Unzip],
+     [zlib.Gzip, zlib.Unzip],
+     [zlib.DeflateRaw, zlib.InflateRaw]];
+
+// how fast to trickle through the slowstream
+var trickle = [128, 1024, 1024 * 1024];
+
+// tunable options for zlib classes.
+
+// several different chunk sizes
+var chunkSize = [128, 1024, 1024 * 16, 1024 * 1024];
+
+// this is every possible value.
+var level = [-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
+var windowBits = [8, 9, 10, 11, 12, 13, 14, 15];
+var memLevel = [1, 2, 3, 4, 5, 6, 7, 8, 9];
+var strategy = [0, 1, 2, 3, 4];
+
+// it's nice in theory to test every combination, but it
+// takes WAY too long.  Maybe a pummel test could do this?
+if (!process.env.PUMMEL) {
+  trickle = [1024];
+  chunkSize = [1024 * 16];
+  level = [6];
+  memLevel = [8];
+  windowBits = [15];
+  strategy = [0];
+}
+
+var fs = require('fs');
+
+if (process.env.FAST) {
+  zlibPairs = [[zlib.Gzip, zlib.Unzip]];
+}
+
+var tests = {
+  'person.jpg': fs.readFileSync(__dirname + '/fixtures/person.jpg'),
+  'elipses.txt': fs.readFileSync(__dirname + '/fixtures/elipses.txt'),
+  'empty.txt': fs.readFileSync(__dirname + '/fixtures/empty.txt')
+};
+
+var util = require('util');
+var stream = require('stream');
+
+
+// stream that saves everything
+function BufferStream() {
+  this.chunks = [];
+  this.length = 0;
+  this.writable = true;
+  this.readable = true;
+}
+
+util.inherits(BufferStream, stream.Stream);
+
+BufferStream.prototype.write = function(c) {
+  this.chunks.push(c);
+  this.length += c.length;
+  return true;
+};
+
+BufferStream.prototype.end = function(c) {
+  if (c) this.write(c);
+  // flatten
+  var buf = new Buffer(this.length);
+  var i = 0;
+  this.chunks.forEach(function(c) {
+    c.copy(buf, i);
+    i += c.length;
+  });
+  this.emit('data', buf);
+  this.emit('end');
+  return true;
+};
+
+
+function SlowStream(trickle) {
+  this.trickle = trickle;
+  this.offset = 0;
+  this.readable = this.writable = true;
+}
+
+util.inherits(SlowStream, stream.Stream);
+
+SlowStream.prototype.write = function() {
+  throw new Error('not implemented, just call ss.end(chunk)');
+};
+
+SlowStream.prototype.pause = function() {
+  this.paused = true;
+  this.emit('pause');
+};
+
+SlowStream.prototype.resume = function() {
+  var self = this;
+  if (self.ended) return;
+  self.emit('resume');
+  if (!self.chunk) return;
+  self.paused = false;
+  emit();
+  function emit() {
+    if (self.paused) return;
+    if (self.offset >= self.length) {
+      self.ended = true;
+      return self.emit('end');
+    }
+    var end = Math.min(self.offset + self.trickle, self.length);
+    var c = self.chunk.slice(self.offset, end);
+    self.offset += c.length;
+    self.emit('data', c);
+    process.nextTick(emit);
+  }
+};
+
+SlowStream.prototype.end = function(chunk) {
+  // walk over the chunk in blocks.
+  var self = this;
+  self.chunk = chunk;
+  self.length = chunk.length;
+  self.resume();
+  return self.ended;
+};
+
+
+
+// for each of the files, make sure that compressing and
+// decompressing results in the same data, for every combination
+// of the options set above.
+var tape = require('tape');
+
+Object.keys(tests).forEach(function(file) {
+  var test = tests[file];
+  chunkSize.forEach(function(chunkSize) {
+    trickle.forEach(function(trickle) {
+      windowBits.forEach(function(windowBits) {
+        level.forEach(function(level) {
+          memLevel.forEach(function(memLevel) {
+            strategy.forEach(function(strategy) {
+              zlibPairs.forEach(function(pair) {
+                var Def = pair[0];
+                var Inf = pair[1];
+                var opts = { 
+                  level: level,
+                  windowBits: windowBits,
+                  memLevel: memLevel,
+                  strategy: strategy
+                };
+                
+                var msg = file + ' ' +
+                    chunkSize + ' ' +
+                    JSON.stringify(opts) + ' ' +
+                    Def.name + ' -> ' + Inf.name;
+                
+                tape('zlib ' + msg, function(t) {
+                  t.plan(1);
+                  
+                  var def = new Def(opts);
+                  var inf = new Inf(opts);
+                  var ss = new SlowStream(trickle);
+                  var buf = new BufferStream();
+
+                  // verify that the same exact buffer comes out the other end.
+                  buf.on('data', function(c) {
+                    t.deepEqual(c, test);
+                  });
+
+                  // the magic happens here.
+                  ss.pipe(def).pipe(inf).pipe(buf);
+                  ss.end(test);
+                });
+              });
+            });
+          });
+        });
+      });
+    }); 
+  });
+});