378 lines
10 KiB
JavaScript
378 lines
10 KiB
JavaScript
/*
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The MIT License (MIT)
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Copyright (c) 2013 Calvin Montgomery
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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:
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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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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.
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*/
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var Auth = require("./auth.js");
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var Server = require("./server.js");
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var Logger = require("./logger.js");
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var apilog = new Logger.Logger("api.log");
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var Database = require("./database.js");
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var fs = require("fs");
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var plainHandlers = {
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"readlog" : handleReadLog
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};
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var jsonHandlers = {
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"channeldata": handleChannelData,
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"listloaded" : handleChannelList,
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"login" : handleLogin,
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"register" : handleRegister,
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"changepass" : handlePasswordChange,
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"globalbans" : handleGlobalBans,
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"admreports" : handleAdmReports
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};
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function handle(path, req, res) {
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var parts = path.split("/");
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var last = parts[parts.length - 1];
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var params = {};
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if(last.indexOf("?") != -1) {
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parts[parts.length - 1] = last.substring(0, last.indexOf("?"));
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var plist = last.substring(last.indexOf("?") + 1).split("&");
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for(var i = 0; i < plist.length; i++) {
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var kv = plist[i].split("=");
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if(kv.length != 2) {
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res.send(400);
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return;
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}
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params[unescape(kv[0])] = unescape(kv[1]);
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}
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}
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for(var i = 0; i < parts.length; i++) {
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parts[i] = unescape(parts[i]);
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}
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if(parts.length != 2) {
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res.send(400);
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return;
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}
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if(parts[0] == "json") {
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res.callback = params.callback || false;
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if(!(parts[1] in jsonHandlers)) {
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res.end(JSON.stringify({
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error: "Unknown endpoint: " + parts[1]
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}, null, 4));
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return;
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}
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jsonHandlers[parts[1]](params, req, res);
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}
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else if(parts[0] == "plain") {
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if(!(parts[1] in plainHandlers)) {
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res.send(404);
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return;
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}
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plainHandlers[parts[1]](params, req, res);
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}
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else {
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res.send(400);
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}
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}
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exports.handle = handle;
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function sendJSON(res, obj) {
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var response = JSON.stringify(obj, null, 4);
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if(res.callback) {
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response = res.callback + "(" + response + ")";
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}
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var len = unescape(encodeURIComponent(response)).length;
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res.setHeader("Content-Type", "application/json");
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res.setHeader("Content-Length", len);
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res.end(response);
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}
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function sendPlain(res, str) {
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if(res.callback) {
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str = res.callback + "('" + str + "')";
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}
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var len = unescape(encodeURIComponent(str)).length;
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res.setHeader("Content-Type", "text/plain");
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res.setHeader("Content-Length", len);
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res.end(response);
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}
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function handleChannelData(params, req, res) {
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var clist = params.channel || "";
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clist = clist.split(",");
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var data = [];
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for(var j = 0; j < clist.length; j++) {
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var cname = clist[j];
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if(!cname.match(/^[a-zA-Z0-9-_]+$/)) {
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continue;
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}
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var d = {
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name: cname,
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loaded: (cname in Server.channels)
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};
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if(d.loaded) {
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var chan = Server.channels[cname];
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d.pagetitle = chan.opts.pagetitle;
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d.media = chan.media ? chan.media.pack() : {};
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d.usercount = chan.users.length;
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d.users = [];
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for(var i = 0; i < chan.users.length; i++) {
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if(chan.users[i].name) {
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d.users.push(chan.users[i].name);
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}
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}
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d.chat = [];
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for(var i = 0; i < chan.chatbuffer.length; i++) {
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d.chat.push(chan.chatbuffer[i]);
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}
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}
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data.push(d);
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}
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sendJSON(res, data);
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}
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function handleChannelList(params, req, res) {
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if(params.filter == "public") {
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var clist = [];
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for(var key in Server.channels) {
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if(Server.channels[key].opts.show_public) {
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clist.push(key);
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}
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}
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handleChannelData({channel: clist.join(",")}, req, res);
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}
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var session = params.session || "";
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var name = params.name || "";
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var pw = params.pw || "";
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var row = Auth.login(name, pw, session);
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if(!row || row.global_rank < 255) {
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res.send(403);
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return;
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}
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var clist = [];
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for(var key in Server.channels) {
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clist.push(key);
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}
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handleChannelData({channel: clist.join(",")}, req, res);
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}
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function handleLogin(params, req, res) {
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var session = params.session || "";
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var name = params.name || "";
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var pw = params.pw || "";
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if(pw == "" && session == "") {
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if(!Auth.isRegistered(name)) {
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sendJSON(res, {
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success: true,
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session: ""
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});
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return;
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}
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else {
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sendJSON(res, {
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success: false,
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error: "That username is already taken"
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});
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return;
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}
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}
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var row = Auth.login(name, pw, session);
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if(row) {
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sendJSON(res, {
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success: true,
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session: row.session_hash
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});
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}
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else {
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sendJSON(res, {
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error: "Invalid session",
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success: false
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});
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}
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}
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function handlePasswordChange(params, req, res) {
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var name = params.name || "";
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var oldpw = params.oldpw || "";
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var newpw = params.newpw || "";
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if(oldpw == "" || newpw == "") {
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sendJSON(res, {
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success: false,
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error: "Old password and new password cannot be empty"
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});
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return;
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}
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var row = Auth.login(name, oldpw);
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if(row) {
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var success = Auth.setUserPassword(name, newpw);
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sendJSON(res, {
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success: success,
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error: success ? "" : "Change password failed"
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});
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}
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else {
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sendJSON(res, {
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success: false,
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error: "Invalid username or password"
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});
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}
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}
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function handleRegister(params, req, res) {
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var name = params.name || "";
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var pw = params.pw || "";
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if(pw == "") {
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sendJSON(res, {
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success: false,
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error: "You must provide a password"
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});
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return;
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}
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else if(Auth.isRegistered(name)) {
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sendJSON(res, {
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success: false,
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error: "That username is already taken"
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});
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return false;
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}
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else if(!Auth.validateName(name)) {
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sendJSON(res, {
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success: false,
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error: "Invalid username. Usernames must be 1-20 characters long and consist only of alphanumeric characters and underscores"
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});
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}
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else {
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var session = Auth.register(name, pw);
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if(session) {
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Logger.syslog.log(this.ip + " registered " + name);
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sendJSON(res, {
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success: true,
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session: session
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});
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}
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else {
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sendJSON(res, {
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success: false,
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error: "I dunno what went wrong"
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});
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}
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}
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}
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function handleGlobalBans(params, req, res) {
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var name = params.name || "";
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var pw = params.pw || "";
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var session = params.session || "";
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var row = Auth.login(name, pw, session);
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if(!row || row.global_rank < 255) {
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res.send(403);
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return;
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}
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var action = params.action || "list";
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if(action == "list") {
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var gbans = Database.refreshGlobalBans();
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sendJSON(res, gbans);
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}
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else if(action == "add") {
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var ip = params.ip || "";
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var reason = params.reason || "";
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if(!ip.match(/\d+\.\d+\.(\d+\.(\d+)?)?/)) {
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sendJSON(res, {
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error: "Invalid IP address"
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});
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return;
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}
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var result = Database.addGlobalBan(ip, reason);
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sendJSON(res, {
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success: result,
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ip: ip,
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reason: reason
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});
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}
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else if(action == "remove") {
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var ip = params.ip || "";
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if(!ip.match(/\d+\.\d+\.(\d+\.(\d+)?)?/)) {
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sendJSON(res, {
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error: "Invalid IP address"
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});
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return;
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}
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var result = Database.liftGlobalBan(ip);
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sendJSON(res, {
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success: result,
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ip: ip,
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});
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}
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else {
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sendJSON(res, {
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error: "Invalid action: " + action
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});
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}
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}
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function handleAdmReports(params, req, res) {
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sendJSON(res, {
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error: "Not implemented"
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});
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}
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// Helper function
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function pipeLast(res, file, len) {
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fs.stat(file, function(err, data) {
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if(err) {
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res.send(500);
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return;
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}
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var start = data.size - len;
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if(start < 0) {
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start = 0;
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}
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var end = data.size - 1;
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fs.createReadStream(file, {start: start, end: end}).pipe(res);
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});
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}
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function handleReadLog(params, req, res) {
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var name = params.name || "";
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var pw = params.pw || "";
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var session = params.session || "";
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var row = Auth.login(name, pw, session);
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if(!row || row.global_rank < 255) {
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res.send(403);
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return;
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}
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res.setHeader("Access-Control-Allow-Origin", "*");
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var type = params.type || "";
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if(type == "sys") {
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pipeLast(res, "sys.log", 1024*1024);
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}
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else if(type == "err") {
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pipeLast(res, "error.log", 1024*1024);
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}
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else if(type == "channel") {
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var chan = params.channel || "";
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fs.exists("chanlogs/" + chan + ".log", function(exists) {
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if(exists) {
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pipeLast(res, "chanlogs/" + chan + ".log", 1024*1024);
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}
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else {
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res.send(404);
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}
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});
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}
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else {
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res.send(400);
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}
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}
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