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nodebb/src/groups.js

339 lines
8.1 KiB
JavaScript

'use strict';
(function(Groups) {
var async = require('async'),
winston = require('winston'),
user = require('./user'),
db = require('./database');
Groups.getGroupIds = function (callback) {
db.getObjectValues('group:gid', callback);
};
Groups.list = function(options, callback) {
db.getObjectValues('group:gid', function (err, gids) {
if (gids.length > 0) {
async.map(gids, function (gid, next) {
Groups.get(gid, {
expand: options.expand
}, next);
}, function (err, groups) {
// Remove deleted and hidden groups from this list
callback(err, groups.filter(function (group) {
if (parseInt(group.deleted, 10) === 1 || parseInt(group.hidden, 10) === 1) {
return false;
} else {
return true;
}
}));
});
} else {
callback(null, []);
}
});
};
Groups.listSystemGroups = function(options, callback) {
var systemGroups = ['administrators', 'registered-users'],
humanNames = ['Administrators', 'Registered Users'];
async.map(systemGroups, function(groupName, next) {
Groups.getByGroupName(groupName, options, function(err, groupObj) {
groupObj.name = humanNames[systemGroups.indexOf(groupObj.name)];
next(err, groupObj);
});
}, callback);
};
Groups.get = function(gid, options, callback) {
async.parallel({
base: function (next) {
db.getObject('gid:' + gid, next);
},
users: function (next) {
db.getSetMembers('gid:' + gid + ':members', function (err, uids) {
if (options.expand) {
if (err) {
return next(err);
}
async.map(uids, user.getUserData, next);
} else {
next(err, uids);
}
});
}
}, function (err, results) {
if (err) {
return callback(err);
}
results.base.count = results.users.length;
results.base.members = results.users;
results.base.deletable = results.base.hidden !== '1';
callback(err, results.base);
});
};
Groups.getByGroupName = function(groupName, options, callback) {
Groups.getGidFromName(groupName, function(err, gid) {
if (err || !gid) {
callback(new Error('gid-not-found'));
} else {
Groups.get(gid, options, callback);
}
});
};
Groups.getMemberships = function(uid, callback) {
if (!uid) {
return callback(new Error('no-uid-specified'));
}
db.getObjectValues('group:gid', function(err, gids) {
async.filter(gids, function(gid, next) {
Groups.isMember(uid, gid, function(err, isMember) {
next(isMember);
});
}, function(gids) {
async.map(gids, function(gid, next) {
Groups.get(gid, {}, next);
}, callback);
});
});
};
Groups.isDeleted = function(gid, callback) {
db.getObjectField('gid:' + gid, 'deleted', function(err, deleted) {
callback(err, parseInt(deleted, 10) === 1);
});
};
Groups.getGidFromName = function(name, callback) {
db.getObjectField('group:gid', name, callback);
};
Groups.isMember = function(uid, gid, callback) {
Groups.isDeleted(gid, function(err, deleted) {
if (!deleted) {
db.isSetMember('gid:' + gid + ':members', uid, callback);
} else {
callback(err, false);
}
});
};
Groups.isMemberByGroupName = function(uid, groupName, callback) {
Groups.getGidFromName(groupName, function(err, gid) {
if (err || !gid) {
callback(null, false);
} else {
Groups.isMember(uid, gid, function(err, isMember) {
callback(err, !!isMember);
});
}
});
};
Groups.isMemberOfGroupAny = function(uid, groupListKey, callback) {
Groups.getGidFromName(groupListKey, function(err, gid) {
if (err || !gid) {
return callback(new Error('error-checking-group'));
}
db.getSetMembers('gid:' + gid + ':members', function(err, gids) {
async.some(gids, function(gid, next) {
Groups.isMember(uid, gid, function(err, isMember) {
if (!err && isMember) {
next(true);
} else {
next(false);
}
});
}, function(result) {
callback(null, result);
});
});
});
};
Groups.isEmpty = function(gid, callback) {
db.setCount('gid:' + gid + ':members', function(err, numMembers) {
callback(err, numMembers === 0);
});
};
Groups.isEmptyByGroupName = function(groupName, callback) {
Groups.getGidFromName(groupName, function(err, gid) {
if (err || !gid) {
callback(new Error('gid-not-found'));
} else {
Groups.isEmpty(gid, callback);
}
});
};
Groups.exists = function(name, callback) {
async.parallel({
exists: function(next) {
db.isObjectField('group:gid', name, next);
},
deleted: function(next) {
Groups.getGidFromName(name, function(err, gid) {
Groups.isDeleted(gid, next);
});
}
}, function(err, results) {
callback(err, !results ? null : (results.exists && !results.deleted));
});
};
Groups.create = function(name, description, callback) {
if (name.length === 0) {
return callback(new Error('name-too-short'));
}
Groups.exists(name, function (err, exists) {
if (!exists) {
db.incrObjectField('global', 'nextGid', function (err, gid) {
db.setObjectField('group:gid', name, gid, function(err) {
var groupData = {
gid: gid,
name: name,
description: description,
deleted: '0',
hidden: '0'
};
db.setObject('gid:' + gid, groupData, function(err) {
Groups.get(gid, {}, callback);
});
});
});
} else {
callback(new Error('group-exists'));
}
});
};
Groups.hide = function(gid, callback) {
Groups.update(gid, {
hidden: '1'
}, callback);
};
Groups.update = function(gid, values, callback) {
db.exists('gid:' + gid, function (err, exists) {
if (!err && exists) {
// If the group was renamed, check for dupes, fix the assoc. hash
if (values.name) {
Groups.exists(values.name, function(err, exists) {
if (!exists) {
Groups.get(gid, {}, function(err, groupObj) {
if (err) {
return callback(new Error('group-not-found'));
}
db.deleteObjectField('group:gid', groupObj.name);
db.setObjectField('group:gid', values.name, gid);
db.setObject('gid:' + gid, values, callback);
});
} else {
callback(new Error('group-exists'));
}
});
} else {
db.setObject('gid:' + gid, values, callback);
}
} else {
if (callback) {
callback(new Error('gid-not-found'));
}
}
});
};
Groups.destroy = function(gid, callback) {
db.setObjectField('gid:' + gid, 'deleted', '1', callback);
};
Groups.join = function(gid, uid, callback) {
db.setAdd('gid:' + gid + ':members', uid, callback);
};
Groups.joinByGroupName = function(groupName, uid, callback) {
Groups.getGidFromName(groupName, function(err, gid) {
if (err || !gid) {
Groups.create(groupName, '', function(err, groupObj) {
async.parallel([
function(next) {
Groups.hide(groupObj.gid, next);
},
function(next) {
Groups.join(groupObj.gid, uid, next);
}
], callback);
});
} else {
Groups.join(gid, uid, callback);
}
});
};
Groups.leave = function(gid, uid, callback) {
db.setRemove('gid:' + gid + ':members', uid, callback);
};
Groups.leaveByGroupName = function(groupName, uid, callback) {
Groups.getGidFromName(groupName, function(err, gid) {
if (err || !gid) {
callback(new Error('gid-not-found'));
} else {
Groups.leave(gid, uid, callback);
}
});
};
Groups.prune = function(callback) {
// Actually deletes groups (with the deleted flag) from the redis database
db.getObjectValues('group:gid', function (err, gids) {
var groupsDeleted = 0;
async.each(gids, function(gid, next) {
Groups.get(gid, {}, function(err, groupObj) {
if(err) {
return next(err);
}
if (parseInt(groupObj.deleted, 10) === 1) {
db.deleteObjectField('group:gid', groupObj.name, function(err) {
db.delete('gid:' + gid, function(err) {
groupsDeleted++;
next(null);
});
});
} else {
next(null);
}
});
}, function(err) {
if (!err && process.env.NODE_ENV === 'development') {
winston.info('[groups.prune] Pruned ' + groupsDeleted + ' deleted groups from Redis');
}
callback(err);
});
});
};
}(module.exports));