281 lines
10 KiB
JavaScript
281 lines
10 KiB
JavaScript
var weechat = angular.module('weechat');
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weechat.factory('connection',
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['$rootScope', '$log', 'handlers', 'models', 'ngWebsockets', function($rootScope,
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$log,
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handlers,
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models,
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ngWebsockets) {
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protocol = new weeChat.Protocol();
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// Takes care of the connection and websocket hooks
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var connect = function (host, port, passwd, ssl, noCompression) {
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var proto = ssl ? 'wss' : 'ws';
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// If host is an IPv6 literal wrap it in brackets
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if (host.indexOf(":") !== -1) {
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host = "[" + host + "]";
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}
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var url = proto + "://" + host + ":" + port + "/weechat";
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$log.debug('Connecting to URL: ', url);
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var onopen = function () {
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// Helper methods for initialization commands
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var _initializeConnection = function(passwd) {
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// This is not the proper way to do this.
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// WeeChat does not send a confirmation for the init.
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// Until it does, We need to "assume" that formatInit
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// will be received before formatInfo
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ngWebsockets.send(
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weeChat.Protocol.formatInit({
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password: passwd,
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compression: noCompression ? 'off' : 'zlib'
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})
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);
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return ngWebsockets.send(
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weeChat.Protocol.formatInfo({
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name: 'version'
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})
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);
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};
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var _requestHotlist = function() {
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return ngWebsockets.send(
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weeChat.Protocol.formatHdata({
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path: "hotlist:gui_hotlist(*)",
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keys: []
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})
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);
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};
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var _requestBufferInfos = function() {
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return ngWebsockets.send(
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weeChat.Protocol.formatHdata({
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path: 'buffer:gui_buffers(*)',
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keys: ['local_variables,notify,number,full_name,short_name,title']
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})
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);
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};
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var _requestSync = function() {
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return ngWebsockets.send(
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weeChat.Protocol.formatSync({})
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);
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};
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// First command asks for the password and issues
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// a version command. If it fails, it means the we
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// did not provide the proper password.
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_initializeConnection(passwd).then(
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function() {
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// Connection is successful
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// Send all the other commands required for initialization
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_requestBufferInfos().then(function(bufinfo) {
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//XXX move to handlers?
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var bufferInfos = bufinfo.objects[0].content;
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// buffers objects
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for (var i = 0; i < bufferInfos.length ; i++) {
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var buffer = new models.Buffer(bufferInfos[i]);
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models.addBuffer(buffer);
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// Switch to first buffer on startup
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if (i === 0) {
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models.setActiveBuffer(buffer.id);
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}
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}
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});
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_requestHotlist().then(function(hotlist) {
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handlers.handleHotlistInfo(hotlist);
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});
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_requestSync();
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$log.info("Connected to relay");
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$rootScope.connected = true;
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},
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function() {
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// Connection got closed, lets check if we ever was connected successfully
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if (!$rootScope.waseverconnected) {
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$rootScope.passwordError = true;
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}
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}
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);
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};
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var onmessage = function() {
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// If we recieve a message from WeeChat it means that
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// password was OK. Store that result and check for it
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// in the failure handler.
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$rootScope.waseverconnected = true;
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};
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var onclose = function (evt) {
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/*
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* Handles websocket disconnection
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*/
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$log.info("Disconnected from relay");
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failCallbacks('disconnection');
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$rootScope.connected = false;
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$rootScope.$emit('relayDisconnect');
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if (ssl && evt.code === 1006) {
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// A password error doesn't trigger onerror, but certificate issues do. Check time of last error.
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if (typeof $rootScope.lastError !== "undefined" && (Date.now() - $rootScope.lastError) < 1000) {
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// abnormal disconnect by client, most likely ssl error
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$rootScope.sslError = true;
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}
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}
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$rootScope.$apply();
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};
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var onerror = function (evt) {
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/*
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* Handles cases when connection issues come from
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* the relay.
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*/
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$log.error("Relay error", evt);
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$rootScope.lastError = Date.now();
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if (evt.type === "error" && this.readyState !== 1) {
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failCallbacks('error');
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$rootScope.errorMessage = true;
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}
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};
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protocol.setId = function(id, message) {
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return '(' + id + ') ' + message;
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};
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try {
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ngWebsockets.connect(url,
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protocol,
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{
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'binaryType': "arraybuffer",
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'onopen': onopen,
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'onclose': onclose,
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'onmessage': onmessage,
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'onerror': onerror
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});
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} catch(e) {
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$log.debug("Websocket caught DOMException:", e);
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$rootScope.lastError = Date.now();
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$rootScope.errorMessage = true;
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$rootScope.securityError = true;
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$rootScope.$emit('relayDisconnect');
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}
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};
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var disconnect = function() {
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ngWebsockets.send(weeChat.Protocol.formatQuit());
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};
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/*
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* Format and send a weechat message
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*
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* @returns the angular promise
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*/
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var sendMessage = function(message) {
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ngWebsockets.send(weeChat.Protocol.formatInput({
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buffer: models.getActiveBuffer().fullName,
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data: message
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}));
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};
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var sendCoreCommand = function(command) {
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ngWebsockets.send(weeChat.Protocol.formatInput({
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buffer: 'core.weechat',
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data: command
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}));
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};
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var requestNicklist = function(bufferId, callback) {
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bufferId = bufferId || null;
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ngWebsockets.send(
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weeChat.Protocol.formatNicklist({
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buffer: bufferId
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})
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).then(function(nicklist) {
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handlers.handleNicklist(nicklist);
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if (callback !== undefined) {
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callback();
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}
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});
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};
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var fetchMoreLines = function(numLines) {
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$log.debug('Fetching ', numLines, ' lines');
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var buffer = models.getActiveBuffer();
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if (numLines === undefined) {
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// Math.max(undefined, *) = NaN -> need a number here
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numLines = 0;
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}
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// Calculate number of lines to fetch, at least as many as the parameter
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numLines = Math.max(numLines, buffer.requestedLines * 2);
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// Indicator that we are loading lines, hides "load more lines" link
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$rootScope.loadingLines = true;
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// Send hdata request to fetch lines for this particular buffer
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return ngWebsockets.send(
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weeChat.Protocol.formatHdata({
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// "0x" is important, otherwise it won't work
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path: "buffer:0x" + buffer.id + "/own_lines/last_line(-" + numLines + ")/data",
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keys: []
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})
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).then(function(lineinfo) {
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//XXX move to handlers?
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// delete old lines and add new ones
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var oldLength = buffer.lines.length;
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// Whether to set the readmarker to the middle position
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// Don't do that if we didn't get any more lines than we already had
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var setReadmarker = (buffer.lastSeen >= 0) && (oldLength !== buffer.lines.length);
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buffer.lines.length = 0;
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// We need to set the number of requested lines to 0 here, because parsing a line
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// increments it. This is needed to also count newly arriving lines while we're
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// already connected.
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buffer.requestedLines = 0;
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// Count number of lines recieved
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var linesReceivedCount = lineinfo.objects[0].content.length;
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// Parse the lines
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handlers.handleLineInfo(lineinfo, true);
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if (setReadmarker) {
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// Read marker was somewhere in the old lines - we don't need it any more,
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// set it to the boundary between old and new. This way, we stay at the exact
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// same position in the text through the scrollWithBuffer below
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buffer.lastSeen = buffer.lines.length - oldLength - 1;
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} else {
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// We are currently fetching at least some unread lines, so we need to keep
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// the read marker position correct
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buffer.lastSeen -= oldLength;
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}
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// We requested more lines than we got, no more lines.
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if (linesReceivedCount < numLines) {
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buffer.allLinesFetched = true;
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}
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$rootScope.loadingLines = false;
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// Scroll read marker to the center of the screen
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$rootScope.scrollWithBuffer(true);
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});
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};
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return {
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connect: connect,
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disconnect: disconnect,
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sendMessage: sendMessage,
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sendCoreCommand: sendCoreCommand,
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fetchMoreLines: fetchMoreLines,
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requestNicklist: requestNicklist
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};
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}]);
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