sync/lib/acp.js

/*
The MIT License (MIT)
Copyright (c) 2013 Calvin Montgomery

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 Logger = require("./logger");
var Server = require("./server");
var db = require("./database");
var util = require("./utilities");
var Config = require("./config");
var Server = require("./server");

function eventUsername(user) {
    return user.name + "@" + user.ip;
}

function handleAnnounce(user, data) {
    var sv = Server.getServer();

    sv.announce({
        title: data.title,
        text: data.content,
        from: user.name
    });

    Logger.eventlog.log("[acp] " + eventUsername(user) + " opened announcement `" +
                        data.title + "`");
}

function handleAnnounceClear(user) {
    Server.getServer().announce(null);
    Logger.eventlog.log("[acp] " + eventUsername(user) + " cleared announcement");
}

function handleGlobalBan(user, data) {
    db.globalBanIP(data.ip, data.note, function (err, res) {
        if (err) {
            user.socket.emit("errMessage", {
                msg: err
            });
            return;
        }

        Logger.eventlog.log("[acp] " + eventUsername(user) + " global banned " + data.ip);

        db.listGlobalBans(function (err, bans) {
            if (err) {
                user.socket.emit("errMessage", {
                    msg: err
                });
                return;
            }

            var flat = [];
            for (var ip in bans) {
                flat.push({
                    ip: ip,
                    note: bans[ip].reason
                });
            }
            user.socket.emit("acp-gbanlist", flat);
        });
    });
}

function handleGlobalBanDelete(user, data) {
    db.globalUnbanIP(data.ip, function (err, res) {
        if (err) {
            user.socket.emit("errMessage", {
                msg: err
            });
            return;
        }

        Logger.eventlog.log("[acp] " + eventUsername(user) + " un-global banned " +
                            data.ip);

        db.listGlobalBans(function (err, bans) {
            if (err) {
                user.socket.emit("errMessage", {
                    msg: err
                });
                return;
            }

            var flat = [];
            for (var ip in bans) {
                flat.push({
                    ip: ip,
                    note: bans[ip].reason
                });
            }
            user.socket.emit("acp-gbanlist", flat);
        });
    });
}

function handleListUsers(user, data) {
    var name = data.name;
    if (typeof name !== "string") {
        name = "";
    }

    var fields = ["id", "name", "global_rank", "email", "ip", "time"];

    db.users.search(name, fields, function (err, users) {
        if (err) {
            user.socket.emit("errMessage", {
                msg: err
            });
            return;
        }
        user.socket.emit("acp-list-users", users);
    });
}

function handleSetRank(user, data) {
    var name = data.name;
    var rank = data.rank;
    if (typeof name !== "string" || typeof rank !== "number") {
        return;
    }

    if (rank >= user.global_rank) {
        user.socket.emit("errMessage", {
            msg: "You are not permitted to promote others to equal or higher rank than " +
                 "yourself."
        });
        return;
    }

    db.users.getGlobalRank(name, function (err, oldrank) {
        if (err) {
            user.socket.emit("errMessage", {
                msg: err
            });
            return;
        }

        if (oldrank >= user.global_rank) {
            user.socket.emit("errMessage", {
                msg: "You are not permitted to change the rank of users who rank " +
                     "higher than you."
            });
            return;
        }

        db.users.setGlobalRank(name, rank, function (err) {
            if (err) {
                user.socket.emit("errMessage", {
                    msg: err
                });
            } else {
                Logger.eventlog.log("[acp] " + eventUsername(user) + " set " + name +
                                    "'s global_rank to " + rank);
                user.socket.emit("acp-set-rank", data);
            }
        });
    });
}

function handleResetPassword(user, data) {
    var name = data.name;
    var email = data.email;
    if (typeof name !== "string" || typeof email !== "string") {
        return;
    }

    db.users.getGlobalRank(name, function (err, rank) {
        if (rank >= user.global_rank) {
            user.socket.emit("errMessage", {
                msg: "You don't have permission to reset the password for " + name
            });
            return;
        }

        var hash = util.sha1(util.randomSalt(64));
        var expire = Date.now() + 86400000;
        db.addPasswordReset({
            ip: "",
            name: name,
            email: email,
            hash: hash,
            expire: expire
        }, function (err) {
            if (err) {
                user.socket.emit("errMessage", {
                    msg: err
                });
                return;
            }

            Logger.eventlog.log("[acp] " + eventUsername(user) + " initialized a " +
                                "password recovery for " + name);

            user.socket.emit("errMessage", {
                msg: "Reset link: " + Config.get("http.domain") +
                     "/account/passwordrecover/" + hash
            });
        });
    });
}

function handleListChannels(user, data) {
    var field = data.field;
    var value = data.value;
    if (typeof field !== "string" || typeof value !== "string") {
        return;
    }

    var dbfunc;
    if (field === "owner") {
        dbfunc = db.channels.searchOwner;
    } else {
        dbfunc = db.channels.search;
    }

    dbfunc(value, function (err, rows) {
        if (err) {
            user.socket.emit("errMessage", {
                msg: err
            });
            return;
        }

        user.socket.emit("acp-list-channels", rows);
    });
}

function handleDeleteChannel(user, data) {
    var name = data.name;
    if (typeof data.name !== "string") {
        return;
    }

    var sv = Server.getServer();
    if (sv.isChannelLoaded(name)) {
        sv.getChannel(name).users.forEach(function (u) {
            u.kick("Channel shutting down");
        });
    }

    db.channels.drop(name, function (err) {
        Logger.eventlog.log("[acp] " + eventUsername(user) + " deleted channel " + name);
        if (err) {
            user.socket.emit("errMessage", {
                msg: err
            });
        } else {
            user.socket.emit("acp-delete-channel", {
                name: name
            });
        }
    });
}

function handleListActiveChannels(user) {
    user.socket.emit("acp-list-activechannels", Server.getServer().packChannelList(false));
}

function handleForceUnload(user, data) {
    var name = data.name;
    if (typeof name !== "string") {
        return;
    }

    var sv = Server.getServer();
    if (!sv.isChannelLoaded(name)) {
        return;
    }

    var chan = sv.getChannel(name);
    var users = Array.prototype.slice.call(chan.users);
    chan.emit("empty");
    users.forEach(function (u) {
        u.kick("Channel shutting down");
    });

    Logger.eventlog.log("[acp] " + eventUsername(user) + " forced unload of " + name);
}

function handleListStats(user) {
    db.listStats(function (err, rows) {
        user.socket.emit("acp-list-stats", rows);
    });
}

function init(user) {
    var s = user.socket;
    s.on("acp-announce", handleAnnounce.bind(this, user));
    s.on("acp-announce-clear", handleAnnounceClear.bind(this, user));
    s.on("acp-gban", handleGlobalBan.bind(this, user));
    s.on("acp-gban-delete", handleGlobalBanDelete.bind(this, user));
    s.on("acp-list-users", handleListUsers.bind(this, user));
    s.on("acp-set-rank", handleSetRank.bind(this, user));
    s.on("acp-reset-password", handleResetPassword.bind(this, user));
    s.on("acp-list-channels", handleListChannels.bind(this, user));
    s.on("acp-delete-channel", handleDeleteChannel.bind(this, user));
    s.on("acp-list-activechannels", handleListActiveChannels.bind(this, user));
    s.on("acp-force-unload", handleForceUnload.bind(this, user));
    s.on("acp-list-stats", handleListStats.bind(this, user));

    db.listGlobalBans(function (err, bans) {
        if (err) {
            user.socket.emit("errMessage", {
                msg: err
            });
            return;
        }

        var flat = [];
        for (var ip in bans) {
            flat.push({
                ip: ip,
                note: bans[ip].reason
            });
        }
        user.socket.emit("acp-gbanlist", flat);
    });
    Logger.eventlog.log("[acp] Initialized ACP for " + eventUsername(user));
}

module.exports.init = init;