174 lines
4 KiB
JavaScript
174 lines
4 KiB
JavaScript
var WeeChatProtocol = function() {
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this.types = {
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'chr': this.getChar,
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'int': this.getInt,
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'str': this.getString,
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'inf': this.getInfo,
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'hda': this.getHdata,
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'ptr': this.getPointer,
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'lon': this.getPointer,
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'tim': this.getPointer,
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'buf': this.getString,
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'arr': this.getArray
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};
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};
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WeeChatProtocol._uia2s = function(uia) {
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var _str = [];
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for (var c = 0; c < uia.length; c++) {
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_str[c] = String.fromCharCode(uia[c]);
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}
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return decodeURIComponent(escape(_str.join("")));
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};
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WeeChatProtocol.prototype = {
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getInfo: function() {
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var info = {};
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info.key = this.getString();
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info.value = this.getString();
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return info;
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},
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getHdata: function() {
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var self = this;
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var paths;
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var count;
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var objs = [];
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var hpath = this.getString();
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keys = this.getString().split(',');
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paths = hpath.split('/');
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count = this.getInt();
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keys = keys.map(function(key) {
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return key.split(':');
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});
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for (var i = 0; i < count; i++) {
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var tmp = {};
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tmp.pointers = paths.map(function(path) {
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return self.getPointer();
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});
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keys.forEach(function(key) {
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tmp[key[0]] = self.runType(key[1]);
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});
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objs.push(tmp);
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};
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return objs;
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},
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getPointer: function() {
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var l = this.getChar();
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var pointer = this.getSlice(l)
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var parsed_data = new Uint8Array(pointer);
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return WeeChatProtocol._uia2s(parsed_data);
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},
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getInt: function() {
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var parsed_data = new Uint8Array(this.getSlice(4));
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return ((parsed_data[0] & 0xff) << 24) |
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((parsed_data[1] & 0xff) << 16) |
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((parsed_data[2] & 0xff) << 8) |
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(parsed_data[3] & 0xff);
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},
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getChar: function() {
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var parsed_data = new Uint8Array(this.getSlice(1));
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return parsed_data[0];
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},
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getString: function() {
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var l = this.getInt();
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if (l > 0) {
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var s = this.getSlice(l);
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var parsed_data = new Uint8Array(s);
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return WeeChatProtocol._uia2s(parsed_data);
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}
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return "";
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},
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getSlice: function(length) {
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var slice = this.data.slice(0,length);
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this.data = this.data.slice(length);
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return slice;
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},
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getType: function() {
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var t = this.getSlice(3);
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return WeeChatProtocol._uia2s(new Uint8Array(t));
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},
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runType: function(type) {
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var cb = this.types[type];
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var boundCb = cb.bind(this);
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return boundCb();
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},
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getHeader: function() {
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var len = this.getInt();
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var comp = this.getChar();
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return {
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length: len,
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compression: comp,
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};
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},
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getId: function() {
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return this.getString();
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},
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getObject: function() {
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var self = this;
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var type = this.getType();
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if (type) {
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return object = {
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type: type,
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content: self.runType(type),
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}
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}
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},
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parse: function(data) {
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var self = this;
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this.setData(data);
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var header = this.getHeader();
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var id = this.getId();
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var objects = [];
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var object = this.getObject();
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while (object) {
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objects.push(object);
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object = self.getObject();
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}
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return {
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header: header,
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id: id,
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objects: objects,
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};
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},
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setData: function (data) {
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this.data = data;
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},
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getArray: function() {
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var self = this;
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var type;
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var count;
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var values;
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type = this.getType();
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count = this.getInt();
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values = [];
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for (var i = 0; i < count; i++) {
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values.push(self.runType(type));
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};
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return values;
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}
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};
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