binary.min.js

/*! binary.min.js build:0.1.4, production. Copyright(c) 2012 Eric Zhang <eric@ericzhang.com> MIT Licensed */(function(e){function n(){this._pieces=[],this._parts=[]}function r(e){this.index=0,this.dataBuffer=e,this.dataView=new Uint8Array(this.dataBuffer),this.length=this.dataBuffer.byteLength}function i(){this.bufferBuilder=new n}function s(){this._events={}}function a(){s.call(this)}function f(e,t){a.call(this),t=u.extend({readDelay:0,paused:!1},t),this._source=e,this._start=0,this._readChunkSize=t.chunkSize||e.size,this._readDelay=t.readDelay,this.readable=!0,this.paused=t.paused,this._read()}function l(e,t,n,r){if(!(this instanceof l))return new l(options);var i=this;a.call(this),this.id=t,this._socket=e,this._socket.addEventListener("error",function(e){i.readable=!1,i.writable=!1,i.emit("error",e)}),this._socket.addEventListener("close",function(e,t){i._onClose()}),this.writable=!0,this.readable=!0,this.paused=!1,this._closed=!1,this._ended=!1,n&&this._write(1,r,this.id)}function c(e,t){if(!(this instanceof c))return new c(t);s.call(this);var n=this;this._options=u.extend({chunkSize:40960},t),this.streams={},typeof e=="string"?(this._nextId=0,this._socket=new WebSocket(e)):(this._nextId=1,this._socket=e),this._socket.binaryType="arraybuffer",this._socket.addEventListener("open",function(){n.emit("open")}),this._socket.addEventListener("error",function(e){n.emit("error",e)}),this._socket.addEventListener("close",function(e,t){n.emit("close",e,t)}),this._socket.addEventListener("message",function(e,t){u.setZeroTimeout(function(){e=e.data,e=u.unpack(e);switch(e[0]){case 0:break;case 1:var t=e[1],r=e[2],i=n._receiveStream(r);n.emit("stream",i,t);break;case 2:var s=e[1],r=e[2],i=n.streams[r];i?i._onData(s):n.emit("error","Received `data` message for unknown stream: "+r);break;case 3:var r=e[2],i=n.streams[r];i?i._onPause():n.emit("error","Received `pause` message for unknown stream: "+r);break;case 4:var r=e[2],i=n.streams[r];i?i._onResume():n.emit("error","Received `resume` message for unknown stream: "+r);break;case 5:var r=e[2],i=n.streams[r];i?i._onEnd():n.emit("error","Received `end` message for unknown stream: "+r);break;case 6:var r=e[2],i=n.streams[r];i?i._onClose():n.emit("error","Received `close` message for unknown stream: "+r);break;default:n.emit("error","Unrecognized message type received: "+e[0])}})})}var t={};t.useBlobBuilder=function(){try{return new Blob([]),!1}catch(e){return!0}}(),t.useArrayBufferView=!t.useBlobBuilder&&function(){try{return(new Blob([new Uint8Array([])])).size===0}catch(e){return!0}}(),t.supportsBinaryWebsockets=function(){try{var e=new WebSocket("ws://null");return e.onerror=function(){},typeof e.binaryType!="undefined"?!0:!1}catch(t){return!1}}(),e.binaryFeatures=t,e.BlobBuilder=window.WebKitBlobBuilder||window.MozBlobBuilder||window.MSBlobBuilder||window.BlobBuilder,n.prototype.append=function(e){typeof e=="number"?this._pieces.push(e):(this._flush(),this._parts.push(e))},n.prototype._flush=function(){if(this._pieces.length>0){var e=new Uint8Array(this._pieces);t.useArrayBufferView||(e=e.buffer),this._parts.push(e),this._pieces=[]}},n.prototype.getBuffer=function(){this._flush();if(t.useBlobBuilder){var e=new BlobBuilder;for(var n=0,r=this._parts.length;n<r;n++)e.append(this._parts[n]);return e.getBlob()}return new Blob(this._parts)},e.BinaryPack={unpack:function(e){var t=new r(e);return t.unpack()},pack:function(e){var t=new i,n=t.pack(e);return n}},r.prototype.unpack=function(){var e=this.unpack_uint8();if(e<128){var t=e;return t}if((e^224)<32){var n=(e^224)-32;return n}var r;if((r=e^160)<=15)return this.unpack_raw(r);if((r=e^176)<=15)return this.unpack_string(r);if((r=e^144)<=15)return this.unpack_array(r);if((r=e^128)<=15)return this.unpack_map(r);switch(e){case 192:return null;case 193:return undefined;case 194:return!1;case 195:return!0;case 202:return this.unpack_float();case 203:return this.unpack_double();case 204:return this.unpack_uint8();case 205:return this.unpack_uint16();case 206:return this.unpack_uint32();case 207:return this.unpack_uint64();case 208:return this.unpack_int8();case 209:return this.unpack_int16();case 210:return this.unpack_int32();case 211:return this.unpack_int64();case 212:return undefined;case 213:return undefined;case 214:return undefined;case 215:return undefined;case 216:return r=this.unpack_uint16(),this.unpack_string(r);case 217:return r=this.unpack_uint32(),this.unpack_string(r);case 218:return r=this.unpack_uint16(),this.unpack_raw(r);case 219:return r=this.unpack_uint32(),this.unpack_raw(r);case 220:return r=this.unpack_uint16(),this.unpack_array(r);case 221:return r=this.unpack_uint32(),this.unpack_array(r);case 222:return r=this.unpack_uint16(),this.unpack_map(r);case 223:return r=this.unpack_uint32(),this.unpack_map(r)}},r.prototype.unpack_uint8=function(){var e=this.dataView[this.index]&255;return this.index++,e},r.prototype.unpack_uint16=function(){var e=this.read(2),t=(e[0]&255)*256+(e[1]&255);return this.index+=2,t},r.prototype.unpack_uint32=function(){var e=this.read(4),t=((e[0]*256+e[1])*256+e[2])*256+e[3];return this.index+=4,t},r.prototype.unpack_uint64=function(){var e=this.read(8),t=((((((e[0]*256+e[1])*256+e[2])*256+e[3])*256+e[4])*256+e[5])*256+e[6])*256+e[7];return this.index+=8,t},r.prototype.unpack_int8=function(){var e=this.unpack_uint8();return e<128?e:e-256},r.prototype.unpack_int16=function(){var e=this.unpack_uint16();return e<32768?e:e-65536},r.prototype.unpack_int32=function(){var e=this.unpack_uint32();return e<Math.pow(2,31)?e:e-Math.pow(2,32)},r.prototype.unpack_int64=function(){var e=this.unpack_uint64();return e<Math.pow(2,63)?e:e-Math.pow(2,64)},r.prototype.unpack_raw=function(e){if(this.length<this.index+e)throw new Error("BinaryPackFailure: index is out of range "+this.index+" "+e+" "+this.length);var t=this.dataBuffer.slice(this.index,this.index+e);return this.index+=e,t},r.prototype.unpack_string=function(e){var t=this.read(e),n=0,r="",i,s;while(n<e)i=t[n],i<128?(r+=String.fromCharCode(i),n++):(i^192)<32?(s=(i^192)<<6|t[n+1]&63,r+=String.fromCharCode(s),n+=2):(s=(i&15)<<12|(t[n+1]&63)<<6|t[n+2]&63,r+=String.fromCharCode(s),n+=3);return this.index+=e,r},r.prototype.unpack_array=function(e){var t=new Array(e);for(var n=0;n<e;n++)t[n]=this.unpack();return t},r.prototype.unpack_map=function(e){var t={};for(var n=0;n<e;n++){var r=this.unpack(),i=this.unpack();t[r]=i}return t},r.prototype.unpack_float=function(){var e=this.unpack_uint32(),t=e>>31,n=(e>>23&255)-127,r=e&8388607|8388608;return(t==0?1:-1)*r*Math.pow(2,n-23)},r.prototype.unpack_double=function(){var e=this.unpack_uint32(),t=this.unpack_uint32(),n=e>>31,r=(e>>20&2047)-1023,i=e&1048575|1048576,s=i*Math.pow(2,r-20)+t*Math.pow(2,r-52);return(n==0?1:-1)*s},r.prototype.read=function(e){var t=this.index;if(t+e<=this.length)return this.dataView.subarray(t,t+e);throw new Error("BinaryPackFailure: read index out of range")},i.prototype.pack=function(e){var n=typeof e;if(n=="string")this.pack_string(e);else if(n=="number")Math.floor(e)===e?this.pack_integer(e):this.pack_double(e);else if(n=="boolean")e===!0?this.bufferBuilder.append(195):e===!1&&this.bufferBuilder.append(194);else if(n=="undefined")this.bufferBuilder.append(192);else{if(n!="object")throw new Error('Type "'+n+'" not yet supported');if(e===null)this.bufferBuilder.append(192);else{var r=e.constructor;if(r==Array)this.pack_array(e);else if(r==Blob||r==File)this.pack_bin(e);else if(r==ArrayBuffer)t.useArrayBufferView?this.pack_bin(new Uint8Array(e)):this.pack_bin(e);else if("BYTES_PER_ELEMENT"in e)t.useArrayBufferView?this.pack_bin(e):this.pack_bin(e.buffer);else if(r==Object)this.pack_object(e);else if(r==Date)this.pack_string(e.toString());else{if(typeof e.toBinaryPack!="function")throw new Error('Type "'+r.toString()+'" not yet supported');this.bufferBuilder.append(e.toBinaryPack())}}}return this.bufferBuilder.getBuffer()},i.prototype.pack_bin=function(e){var t=e.length||e.byteLength||e.size;if(t<=15)this.pack_uint8(160+t);else if(t<=65535)this.bufferBuilder.append(218),this.pack_uint16(t);else{if(!(t<=4294967295))throw new Error("Invalid length");this.bufferBuilder.append(219),this.pack_uint32(t)}this.bufferBuilder.append(e)},i.prototype.pack_string=function(e){var t=e.length;if(t<=15)this.pack_uint8(176+t);else if(t<=65535)this.bufferBuilder.append(216),this.pack_uint16(t);else{if(!(t<=4294967295))throw new Error("Invalid length");this.bufferBuilder.append(217),this.pack_uint32(t)}this.bufferBuilder.append(e)},i.prototype.pack_array=function(e){var t=e.length;if(t<=15)this.pack_uint8(144+t);else if(t<=65535)this.bufferBuilder.append(220),this.pack_uint16(t);else{if(!(t<=4294967295))throw new Error("Invalid length");this.bufferBuilder.append(221),this.pack_uint32(t)}for(var n=0;n<t;n++)this.pack(e[n])},i.prototype.pack_integer=function(e){if(-32<=e&&e<=127)this.bufferBuilder.append(e&255);else if(0<=e&&e<=255)this.bufferBuilder.append(204),this.pack_uint8(e);else if(-128<=e&&e<=127)this.bufferBuilder.append(208),this.pack_int8(e);else if(0<=e&&e<=65535)this.bufferBuilder.append(205),this.pack_uint16(e);else if(-32768<=e&&e<=32767)this.bufferBuilder.append(209),this.pack_int16(e);else if(0<=e&&e<=4294967295)this.bufferBuilder.append(206),this.pack_uint32(e);else if(-2147483648<=e&&e<=2147483647)this.bufferBuilder.append(210),this.pack_int32(e);else if(-0x8000000000000000<=e&&e<=0x8000000000000000)this.bufferBuilder.append(211),this.pack_int64(e);else{if(!(0<=e&&e<=0x10000000000000000))throw new Error("Invalid integer");this.bufferBuilder.append(207),this.pack_uint64(e)}},i.prototype.pack_double=function(e){var t=0;e<0&&(t=1,e=-e);var n=Math.floor(Math.log(e)/Math.LN2),r=e/Math.pow(2,n)-1,i=Math.floor(r*Math.pow(2,52)),s=Math.pow(2,32),o=t<<31|n+1023<<20|i/s&1048575,u=i%s;this.bufferBuilder.append(203),this.pack_int32(o),this.pack_int32(u)},i.prototype.pack_object=function(e){var t=Object.keys(e),n=t.length;if(n<=15)this.pack_uint8(128+n);else if(n<=65535)this.bufferBuilder.append(222),this.pack_uint16(n);else{if(!(n<=4294967295))throw new Error("Invalid length");this.bufferBuilder.append(223),this.pack_uint32(n)}for(var r in e)e.hasOwnProperty(r)&&(this.pack(r),this.pack(e[r]))},i.prototype.pack_uint8=function(e){this.bufferBuilder.append(e)},i.prototype.pack_uint16=function(e){this.bufferBuilder.append(e>>8),this.bufferBuilder.append(e&255)},i.prototype.pack_uint32=function(e){var t=e&4294967295;this.bufferBuilder.append((t&4278190080)>>>24),this.bufferBuilder.append((t&16711680)>>>16),this.bufferBuilder.append((t&65280)>>>8),this.bufferBuilder.append(t&255)},i.prototype.pack_uint64=function(e){var t=e/Math.pow(2,32),n=e%Math.pow(2,32);this.bufferBuilder.append((t&4278190080)>>>24),this.bufferBuilder.append((t&16711680)>>>16),this.bufferBuilder.append((t&65280)>>>8),this.bufferBuilder.append(t&255),this.bufferBuilder.append((n&4278190080)>>>24),this.bufferBuilder.append((n&16711680)>>>16),this.bufferBuilder.append((n&65280)>>>8),this.bufferBuilder.append(n&255)},i.prototype.pack_int8=function(e){this.bufferBuilder.append(e&255)},i.prototype.pack_int16=function(e){this.bufferBuilder.append((e&65280)>>8),this.bufferBuilder.append(e&255)},i.prototype.pack_int32=function(e){this.bufferBuilder.append(e>>>24&255),this.bufferBuilder.append((e&16711680)>>>16),this.bufferBuilder.append((e&65280)>>>8),this.bufferBuilder.append(e&255)},i.prototype.pack_int64=function(e){var t=Math.floor(e/Math.pow(2,32)),n=e%Math.pow(2,32);this.bufferBuilder.append((t&4278190080)>>>24),this.bufferBuilder.append((t&16711680)>>>16),this.bufferBuilder.append((t&65280)>>>8),this.bufferBuilder.append(t&255),this.bufferBuilder.append((n&4278190080)>>>24),this.bufferBuilder.append((n&16711680)>>>16),this.bufferBuilder.append((n&65280)>>>8),this.bufferBuilder.append(n&255)};var o=Array.isArray;s.prototype.addListener=function(e,t,n,r){if("function"!=typeof t)throw new Error("addListener only takes instances of Function");this.emit("newListener",e,typeof t.listener=="function"?t.listener:t),this._events[e]?o(this._events[e])?this._events[e].push(t):this._events[e]=[this._events[e],t]:this._events[e]=t},s.prototype.on=s.prototype.addListener,s.prototype.once=function(e,t,n){function i(){r.removeListener(e,i),t.apply(this,arguments)}if("function"!=typeof t)throw new Error(".once only takes instances of Function");var r=this;return i.listener=t,r.on(e,i),this},s.prototype.removeListener=function(e,t,n){if("function"!=typeof t)throw new Error("removeListener only takes instances of Function");if(!this._events[e])return this;var r=this._events[e];if(o(r)){var i=-1;for(var s=0,u=r.length;s<u;s++)if(r[s]===t||r[s].listener&&r[s].listener===t){i=s;break}if(i<0)return this;r.splice(i,1),r.length==0&&delete this._events[e]}else(r===t||r.listener&&r.listener===t)&&delete this._events[e];return this},s.prototype.off=s.prototype.removeListener,s.prototype.removeAllListeners=function(e){return arguments.length===0?(this._events={},this):(e&&this._events&&this._events[e]&&(this._events[e]=null),this)},s.prototype.listeners=function(e){return this._events[e]||(this._events[e]=[]),o(this._events[e])||(this._events[e]=[this._events[e]]),this._events[e]},s.prototype.emit=function(e){var e=arguments[0],t=this._events[e];if(!t)return!1;if(typeof t=="function"){switch(arguments.length){case 1:t.call(this);break;case 2:t.call(this,arguments[1]);break;case 3:t.call(this,arguments[1],arguments[2]);break;default:var n=arguments.length,r=new Array(n-1);for(var i=1;i<n;i++)r[i-1]=arguments[i];t.apply(this,r)}return!0}if(o(t)){var n=arguments.length,r=new Array(n-1);for(var i=1;i<n;i++)r[i-1]=arguments[i];var s=t.slice();for(var i=0,n=s.length;i<n;i++)s[i].apply(this,r);return!0}return!1};var u={inherits:function(e,t){e.super_=t,e.prototype=Object.create(t.prototype,{constructor:{value:e,enumerable:!1,writable:!0,configurable:!0}})},extend:function(e,t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n]);return e},pack:BinaryPack.pack,unpack:BinaryPack.unpack,setZeroTimeout:function(e){function r(r){t.push(r),e.postMessage(n,"*")}function i(r){r.source==e&&r.data==n&&(r.stopPropagation&&r.stopPropagation(),t.length&&t.shift()())}var t=[],n="zero-timeout-message";return e.addEventListener?e.addEventListener("message",i,!0):e.attachEvent&&e.attachEvent("onmessage",i),r}(this)};u.inherits(a,s),a.prototype.pipe=function(e,t){function r(t){e.writable&&!1===e.write(t)&&n.pause&&n.pause()}function i(){n.readable&&n.resume&&n.resume()}function o(){if(s)return;s=!0,e.end()}function u(){if(s)return;s=!0,e.destroy()}function a(e){f();if(this.listeners("error").length===0)throw e}function f(){n.removeListener("data",r),e.removeListener("drain",i),n.removeListener("end",o),n.removeListener("close",u),n.removeListener("error",a),e.removeListener("error",a),n.removeListener("end",f),n.removeListener("close",f),e.removeListener("end",f),e.removeListener("close",f)}var n=this;n.on("data",r),e.on("drain",i),!e._isStdio&&(!t||t.end!==!1)&&(n.on("end",o),n.on("close",u));var s=!1;return n.on("error",a),e.on("error",a),n.on("end",f),n.on("close",f),e.on("end",f),e.on("close",f),e.emit("pipe",n),e},u.inherits(f,a),f.prototype.pause=function(){this.paused=!0},f.prototype.resume=function(){this.paused=!1,this._read()},f.prototype.destroy=function(){this.readable=!1,clearTimeout(this._timeoutId)},f.prototype._read=function(){function t(){e._emitReadChunk()}var e=this,n=this._readDelay;n!==0?this._timeoutId=setTimeout(t,n):u.setZeroTimeout(t)},f.prototype._emitReadChunk=function(){if(this.paused||!this.readable)return;var e=Math.min(this._source.size-this._start,this._readChunkSize);if(e===0){this.readable=!1,this.emit("end");return}var t=this._start+e,n=(this._source.slice||this._source.webkitSlice||this._source.mozSlice).call(this._source,this._start,t);this._start=t,this._read(),this.emit("data",n)},e.BlobReadStream=f,u.inherits(l,a),l.prototype._onClose=function(){if(this._closed)return;this.readable=!1,this.writable=!1,this._closed=!0,this.emit("close")},l.prototype._onPause=function(){this.paused=!0,this.emit("pause")},l.prototype._onResume=function(){this.paused=!1,this.emit("resume"),this.emit("drain")},l.prototype._write=function(e,t,n,r){var i=u.pack([e,t,n]);return this._socket.send(i,{binary:!0},r)!==!1},l.prototype.write=function(e,t){if(this.writable){var n=this._write(2,e,this.id,t);return!this.paused&&n}throw new Error("Stream is not writable")},l.prototype.end=function(){this._ended=!0,this.readable=!1,this._write(5,null,this.id)},l.prototype.destroy=l.prototype.destroySoon=function(){this._onClose(),this._write(6,null,this.id)},l.prototype._onEnd=function(){if(this._ended)return;this._ended=!0,this.readable=!1,this.emit("end")},l.prototype._onData=function(e){this.emit("data",e)},l.prototype.pause=function(){this._onPause(),this._write(3,null,this.id)},l.prototype.resume=function(){this._onResume(),this._write(4,null,this.id)},u.inherits(c,s),c.prototype.send=function(e,n){var r=this.createStream(n);if(e instanceof a)e.pipe(r);else if(u.isNode===!0)Buffer.isBuffer(e)?(new BufferReadStream(e,{chunkSize:this._options.chunkSize})).pipe(r):r.write(e);else if(u.isNode!==!0)if(e.constructor==Blob||e.constructor==File)(new f(e,{chunkSize:this._options.chunkSize})).pipe(r);else if(e.constructor==ArrayBuffer){var i;t.useArrayBufferView&&(e=new Uint8Array(e));if(t.useBlobBuilder){var s=new BlobBuilder;s.append(e),i=s.getBlob()}else i=new Blob([e]);(new f(i,{chunkSize:this._options.chunkSize})).pipe(r)}else if(typeof e=="object"&&"BYTES_PER_ELEMENT"in e){var i;t.useArrayBufferView||(e=e.buffer);if(t.useBlobBuilder){var s=new BlobBuilder;s.append(e),i=s.getBlob()}else i=new Blob([e]);(new f(i,{chunkSize:this._options.chunkSize})).pipe(r)}else r.write(e);return r},c.prototype._receiveStream=function(e){var t=this,n=new l(this._socket,e,!1);return n.on("close",function(){delete t.streams[e]}),this.streams[e]=n,n},c.prototype.createStream=function(e){if(this._socket.readyState!==WebSocket.OPEN)throw new Error("Client is not yet connected or has closed");var t=this,n=this._nextId;this._nextId+=2;var r=new l(this._socket,n,!0,e);return r.on("close",function(){delete t.streams[n]}),this.streams[n]=r,r},c.prototype.close=c.prototype.destroy=function(e,t){this._socket.close(e,t)},e.BinaryClient=c})(this)