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'use strict';
var fs = require('fs'),
_ = require('lodash'),
mongoose = require('mongoose'),
helpers = require('./helpers'),
settings = require('./../config').files,
enabled = settings.enable,
provider = _.find([
require('./files/local'),
require('./files/s3')
], function(provider) { return provider.enabled; });
function FileManager(options) {
this.core = options.core;
}
FileManager.prototype.create = function(options, cb) {
var File = mongoose.model('File'),
Room = mongoose.model('Room'),
User = mongoose.model('User');
if (!enabled) {
return cb('Files are disabled.');
}
if (settings.allowed_file_types &&
settings.allowed_file_types.length &&
!_.include(settings.allowed_file_types, options.file.mimetype)) {
return cb('The MIME type ' + options.file.mimetype +
' is not allowed');
}
Room.findById(options.room, function(err, room) {
if (err) {
console.error(err);
return cb(err);
}
if (!room) {
return cb('No room found!');
}
if (room.archived) {
return cb('Room is archived.');
}
new File({
owner: options.owner,
name: options.file.originalname,
type: options.file.mimetype,
size: options.file.size,
room: options.room
}).save(function(err, savedFile) {
provider.save({file: options.file, doc: savedFile}, function(err) {
if (err) {
savedFile.remove();
return cb(err);
}
// Temporary workaround for _id until populate can do aliasing
User.findOne(options.owner, function(err, user) {
if (err) {
console.error(err);
return cb(err);
}
cb(null, savedFile, room, user);
this.core.emit('files:new', savedFile, room, user);
options.post && this.core.messages.create({
room: room,
owner: user,
text: 'file:' + savedFile._id
});
}.bind(this));
}.bind(this));
}.bind(this));
}.bind(this));
};
FileManager.prototype.list = function(options, cb) {
options = options || {};
options = helpers.sanitizeQuery(options, {
defaults: {
reverse: true,
take: 500
},
maxTake: 5000
});
var File = mongoose.model('File'),
User = mongoose.model('User');
var find = File.find();
if (options.room) {
find.where('room', options.room);
}
if (options.from) {
find.where('uploaded').gt(options.from);
}
if (options.to) {
find.where('uploaded').lte(options.to);
}
if (options.expand) {
var includes = options.expand.split(',');
if (_.includes(includes, 'owner')) {
find.populate('owner', 'id username displayName email avatar');
}
}
if (options.skip) {
find.skip(options.skip);
}
if (options.reverse) {
find.sort({ 'uploaded': -1 });
} else {
find.sort({ 'uploaded': 1 });
}
find
.limit(options.limit)
.exec(function(err, files) {
if (err) {
console.error(err);
return cb(err);
}
cb(null, files);
});
};
FileManager.getUrl = provider ? provider.getUrl : function(){};
module.exports = FileManager;
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