Files
cloudron-box/src/addons.js
2015-08-24 10:19:18 -07:00

776 lines
26 KiB
JavaScript

'use strict';
exports = module.exports = {
setupAddons: setupAddons,
teardownAddons: teardownAddons,
backupAddons: backupAddons,
restoreAddons: restoreAddons,
getEnvironment: getEnvironment,
getLinksSync: getLinksSync,
getBindsSync: getBindsSync,
// exported for testing
_allocateOAuthCredentials: allocateOAuthCredentials,
_removeOAuthCredentials: removeOAuthCredentials
};
var appdb = require('./appdb.js'),
assert = require('assert'),
async = require('async'),
child_process = require('child_process'),
clientdb = require('./clientdb.js'),
config = require('./config.js'),
DatabaseError = require('./databaseerror.js'),
debug = require('debug')('box:addons'),
docker = require('./docker.js'),
fs = require('fs'),
generatePassword = require('password-generator'),
hat = require('hat'),
MemoryStream = require('memorystream'),
once = require('once'),
os = require('os'),
path = require('path'),
paths = require('./paths.js'),
safe = require('safetydance'),
shell = require('./shell.js'),
spawn = child_process.spawn,
tokendb = require('./tokendb.js'),
util = require('util'),
uuid = require('node-uuid'),
vbox = require('./vbox.js');
var NOOP = function (app, callback) { return callback(); };
// setup can be called multiple times for the same app (configure crash restart) and existing data must not be lost
// teardown is destructive. app data stored with the addon is lost
var KNOWN_ADDONS = {
oauth: {
setup: allocateOAuthCredentials,
teardown: removeOAuthCredentials,
backup: NOOP,
restore: allocateOAuthCredentials
},
token: {
setup: allocateAccessToken,
teardown: removeAccessToken,
backup: NOOP,
restore: allocateAccessToken
},
ldap: {
setup: setupLdap,
teardown: teardownLdap,
backup: NOOP,
restore: setupLdap
},
sendmail: {
setup: setupSendMail,
teardown: teardownSendMail,
backup: NOOP,
restore: setupSendMail
},
mysql: {
setup: setupMySql,
teardown: teardownMySql,
backup: backupMySql,
restore: restoreMySql,
},
postgresql: {
setup: setupPostgreSql,
teardown: teardownPostgreSql,
backup: backupPostgreSql,
restore: restorePostgreSql
},
mongodb: {
setup: setupMongoDb,
teardown: teardownMongoDb,
backup: backupMongoDb,
restore: restoreMongoDb
},
redis: {
setup: setupRedis,
teardown: teardownRedis,
backup: NOOP, // no backup because we store redis as part of app's volume
restore: setupRedis // same thing
},
localstorage: {
setup: NOOP, // docker creates the directory for us
teardown: NOOP,
backup: NOOP, // no backup because it's already inside app data
restore: NOOP
},
_docker: {
setup: NOOP,
teardown: NOOP,
backup: NOOP,
restore: NOOP
}
};
var RMAPPDIR_CMD = path.join(__dirname, 'scripts/rmappdir.sh');
function debugApp(app, args) {
assert(!app || typeof app === 'object');
var prefix = app ? (app.location || 'naked_domain') : '(no app)';
debug(prefix + ' ' + util.format.apply(util, Array.prototype.slice.call(arguments, 1)));
}
function setupAddons(app, addons, callback) {
assert.strictEqual(typeof app, 'object');
assert(!addons || typeof addons === 'object');
assert.strictEqual(typeof callback, 'function');
if (!addons) return callback(null);
debugApp(app, 'setupAddons: Settings up %j', Object.keys(addons));
async.eachSeries(Object.keys(addons), function iterator(addon, iteratorCallback) {
if (!(addon in KNOWN_ADDONS)) return iteratorCallback(new Error('No such addon:' + addon));
debugApp(app, 'Setting up addon %s', addon);
KNOWN_ADDONS[addon].setup(app, iteratorCallback);
}, callback);
}
function teardownAddons(app, addons, callback) {
assert.strictEqual(typeof app, 'object');
assert(!addons || typeof addons === 'object');
assert.strictEqual(typeof callback, 'function');
if (!addons) return callback(null);
debugApp(app, 'teardownAddons: Tearing down %j', Object.keys(addons));
async.eachSeries(Object.keys(addons), function iterator(addon, iteratorCallback) {
if (!(addon in KNOWN_ADDONS)) return iteratorCallback(new Error('No such addon:' + addon));
debugApp(app, 'Tearing down addon %s', addon);
KNOWN_ADDONS[addon].teardown(app, iteratorCallback);
}, callback);
}
function backupAddons(app, addons, callback) {
assert.strictEqual(typeof app, 'object');
assert(!addons || typeof addons === 'object');
assert.strictEqual(typeof callback, 'function');
debugApp(app, 'backupAddons');
if (!addons) return callback(null);
debugApp(app, 'backupAddons: Backing up %j', Object.keys(addons));
async.eachSeries(Object.keys(addons), function iterator (addon, iteratorCallback) {
if (!(addon in KNOWN_ADDONS)) return iteratorCallback(new Error('No such addon:' + addon));
KNOWN_ADDONS[addon].backup(app, iteratorCallback);
}, callback);
}
function restoreAddons(app, addons, callback) {
assert.strictEqual(typeof app, 'object');
assert(!addons || typeof addons === 'object');
assert.strictEqual(typeof callback, 'function');
debugApp(app, 'restoreAddons');
if (!addons) return callback(null);
debugApp(app, 'restoreAddons: restoring %j', Object.keys(addons));
async.eachSeries(Object.keys(addons), function iterator (addon, iteratorCallback) {
if (!(addon in KNOWN_ADDONS)) return iteratorCallback(new Error('No such addon:' + addon));
KNOWN_ADDONS[addon].restore(app, iteratorCallback);
}, callback);
}
function getEnvironment(app, callback) {
assert.strictEqual(typeof app, 'object');
assert.strictEqual(typeof callback, 'function');
appdb.getAddonConfigByAppId(app.id, callback);
}
function getLinksSync(app, addons) {
assert.strictEqual(typeof app, 'object');
assert(!addons || typeof addons === 'object');
var links = [ ];
if (!addons) return links;
for (var addon in addons) {
switch (addon) {
case 'mysql': links.push('mysql:mysql'); break;
case 'postgresql': links.push('postgresql:postgresql'); break;
case 'sendmail': links.push('mail:mail'); break;
case 'redis': links.push('redis-' + app.id + ':redis-' + app.id); break;
case 'mongodb': links.push('mongodb:mongodb'); break;
default: break;
}
}
return links;
}
function getBindsSync(app, addons) {
assert.strictEqual(typeof app, 'object');
assert(!addons || typeof addons === 'object');
var binds = [ ];
if (!addons) return binds;
for (var addon in addons) {
switch (addon) {
case '_docker': binds.push('/var/run/docker.sock:/var/run/docker.sock:rw'); break;
case 'localstorage': binds.push(path.join(paths.DATA_DIR, app.id, 'data') + ':/app/data:rw'); break;
default: break;
}
}
return binds;
}
function allocateOAuthCredentials(app, callback) {
assert.strictEqual(typeof app, 'object');
assert.strictEqual(typeof callback, 'function');
var appId = app.id;
var id = 'cid-addon-' + uuid.v4();
var clientSecret = hat(256);
var redirectURI = 'https://' + config.appFqdn(app.location);
var scope = 'profile,roleUser';
debugApp(app, 'allocateOAuthCredentials: id:%s clientSecret:%s', id, clientSecret);
clientdb.delByAppId('addon-' + appId, function (error) { // remove existing creds
if (error && error.reason !== DatabaseError.NOT_FOUND) return callback(error);
clientdb.add(id, 'addon-' + appId, clientSecret, redirectURI, scope, function (error) {
if (error) return callback(error);
var env = [
'OAUTH_CLIENT_ID=' + id,
'OAUTH_CLIENT_SECRET=' + clientSecret,
'OAUTH_ORIGIN=' + config.adminOrigin()
];
debugApp(app, 'Setting oauth addon config to %j', env);
appdb.setAddonConfig(appId, 'oauth', env, callback);
});
});
}
function removeOAuthCredentials(app, callback) {
assert.strictEqual(typeof app, 'object');
assert.strictEqual(typeof callback, 'function');
debugApp(app, 'removeOAuthCredentials');
clientdb.delByAppId('addon-' + app.id, function (error) {
if (error && error.reason !== DatabaseError.NOT_FOUND) console.error(error);
appdb.unsetAddonConfig(app.id, 'oauth', callback);
});
}
function setupLdap(app, callback) {
assert.strictEqual(typeof app, 'object');
assert.strictEqual(typeof callback, 'function');
var env = [
'LDAP_SERVER=172.17.42.1',
'LDAP_PORT=3002',
'LDAP_URL=ldap://172.17.42.1:3002',
'LDAP_USERS_BASE_DN=ou=users,dc=cloudron',
'LDAP_GROUPS_BASE_DN=ou=groups,dc=cloudron'
];
debugApp(app, 'Setting up LDAP');
appdb.setAddonConfig(app.id, 'ldap', env, callback);
}
function teardownLdap(app, callback) {
assert.strictEqual(typeof app, 'object');
assert.strictEqual(typeof callback, 'function');
debugApp(app, 'Tearing down LDAP');
appdb.unsetAddonConfig(app.id, 'ldap', callback);
}
function setupSendMail(app, callback) {
assert.strictEqual(typeof app, 'object');
assert.strictEqual(typeof callback, 'function');
var env = [
'MAIL_SMTP_SERVER=mail',
'MAIL_SMTP_PORT=25',
'MAIL_SMTP_USERNAME=' + (app.location || app.id), // use app.id for bare domains
'MAIL_DOMAIN=' + config.fqdn()
];
debugApp(app, 'Setting up sendmail');
appdb.setAddonConfig(app.id, 'sendmail', env, callback);
}
function teardownSendMail(app, callback) {
assert.strictEqual(typeof app, 'object');
assert.strictEqual(typeof callback, 'function');
debugApp(app, 'Tearing down sendmail');
appdb.unsetAddonConfig(app.id, 'sendmail', callback);
}
function setupMySql(app, callback) {
assert.strictEqual(typeof app, 'object');
assert.strictEqual(typeof callback, 'function');
debugApp(app, 'Setting up mysql');
var container = docker.getContainer('mysql');
var cmd = [ '/addons/mysql/service.sh', 'add', app.id ];
container.exec({ Cmd: cmd, AttachStdout: true, AttachStderr: true }, function (error, execContainer) {
if (error) return callback(error);
execContainer.start(function (error, stream) {
if (error) return callback(error);
var stdout = new MemoryStream();
var stderr = new MemoryStream();
execContainer.modem.demuxStream(stream, stdout, stderr);
stderr.on('data', function (data) { debugApp(app, data.toString('utf8')); }); // set -e output
var chunks = [ ];
stdout.on('data', function (chunk) { chunks.push(chunk); });
stream.on('error', callback);
stream.on('end', function () {
var env = Buffer.concat(chunks).toString('utf8').split('\n').slice(0, -1); // remove trailing newline
debugApp(app, 'Setting mysql addon config to %j', env);
appdb.setAddonConfig(app.id, 'mysql', env, callback);
});
});
});
}
function teardownMySql(app, callback) {
var container = docker.getContainer('mysql');
var cmd = [ '/addons/mysql/service.sh', 'remove', app.id ];
debugApp(app, 'Tearing down mysql');
container.exec({ Cmd: cmd, AttachStdout: true, AttachStderr: true }, function (error, execContainer) {
if (error) return callback(error);
execContainer.start(function (error, stream) {
if (error) return callback(error);
var data = '';
stream.on('error', callback);
stream.on('data', function (d) { data += d.toString('utf8'); });
stream.on('end', function () {
appdb.unsetAddonConfig(app.id, 'mysql', callback);
});
});
});
}
function backupMySql(app, callback) {
debugApp(app, 'Backing up mysql');
callback = once(callback); // ChildProcess exit may or may not be called after error
var output = fs.createWriteStream(path.join(paths.DATA_DIR, app.id, 'mysqldump'));
output.on('error', callback);
var cp = spawn('/usr/bin/docker', [ 'exec', 'mysql', '/addons/mysql/service.sh', 'backup', app.id ]);
cp.on('error', callback);
cp.on('exit', function (code, signal) {
debugApp(app, 'backupMySql: done. code:%s signal:%s', code, signal);
if (!callback.called) callback(code ? 'backupMySql failed with status ' + code : null);
});
cp.stdout.pipe(output);
cp.stderr.pipe(process.stderr);
}
function restoreMySql(app, callback) {
callback = once(callback); // ChildProcess exit may or may not be called after error
setupMySql(app, function (error) {
if (error) return callback(error);
debugApp(app, 'restoreMySql');
var input = fs.createReadStream(path.join(paths.DATA_DIR, app.id, 'mysqldump'));
input.on('error', callback);
// cannot get this to work through docker.exec
var cp = spawn('/usr/bin/docker', [ 'exec', '-i', 'mysql', '/addons/mysql/service.sh', 'restore', app.id ]);
cp.on('error', callback);
cp.on('exit', function (code, signal) {
debugApp(app, 'restoreMySql: done %s %s', code, signal);
if (!callback.called) callback(code ? 'restoreMySql failed with status ' + code : null);
});
cp.stdout.pipe(process.stdout);
cp.stderr.pipe(process.stderr);
input.pipe(cp.stdin).on('error', callback);
});
}
function setupPostgreSql(app, callback) {
assert.strictEqual(typeof app, 'object');
assert.strictEqual(typeof callback, 'function');
debugApp(app, 'Setting up postgresql');
var container = docker.getContainer('postgresql');
var cmd = [ '/addons/postgresql/service.sh', 'add', app.id ];
container.exec({ Cmd: cmd, AttachStdout: true, AttachStderr: true }, function (error, execContainer) {
if (error) return callback(error);
execContainer.start(function (error, stream) {
if (error) return callback(error);
var stdout = new MemoryStream();
var stderr = new MemoryStream();
execContainer.modem.demuxStream(stream, stdout, stderr);
stderr.on('data', function (data) { debugApp(app, data.toString('utf8')); }); // set -e output
var chunks = [ ];
stdout.on('data', function (chunk) { chunks.push(chunk); });
stream.on('error', callback);
stream.on('end', function () {
var env = Buffer.concat(chunks).toString('utf8').split('\n').slice(0, -1); // remove trailing newline
debugApp(app, 'Setting postgresql addon config to %j', env);
appdb.setAddonConfig(app.id, 'postgresql', env, callback);
});
});
});
}
function teardownPostgreSql(app, callback) {
var container = docker.getContainer('postgresql');
var cmd = [ '/addons/postgresql/service.sh', 'remove', app.id ];
debugApp(app, 'Tearing down postgresql');
container.exec({ Cmd: cmd, AttachStdout: true, AttachStderr: true }, function (error, execContainer) {
if (error) return callback(error);
execContainer.start(function (error, stream) {
if (error) return callback(error);
var data = '';
stream.on('error', callback);
stream.on('data', function (d) { data += d.toString('utf8'); });
stream.on('end', function () {
appdb.unsetAddonConfig(app.id, 'postgresql', callback);
});
});
});
}
function backupPostgreSql(app, callback) {
debugApp(app, 'Backing up postgresql');
callback = once(callback); // ChildProcess exit may or may not be called after error
var output = fs.createWriteStream(path.join(paths.DATA_DIR, app.id, 'postgresqldump'));
output.on('error', callback);
var cp = spawn('/usr/bin/docker', [ 'exec', 'postgresql', '/addons/postgresql/service.sh', 'backup', app.id ]);
cp.on('error', callback);
cp.on('exit', function (code, signal) {
debugApp(app, 'backupPostgreSql: done %s %s', code, signal);
if (!callback.called) callback(code ? 'backupPostgreSql failed with status ' + code : null);
});
cp.stdout.pipe(output);
cp.stderr.pipe(process.stderr);
}
function restorePostgreSql(app, callback) {
callback = once(callback); // ChildProcess exit may or may not be called after error
setupPostgreSql(app, function (error) {
if (error) return callback(error);
debugApp(app, 'restorePostgreSql');
var input = fs.createReadStream(path.join(paths.DATA_DIR, app.id, 'postgresqldump'));
input.on('error', callback);
// cannot get this to work through docker.exec
var cp = spawn('/usr/bin/docker', [ 'exec', '-i', 'postgresql', '/addons/postgresql/service.sh', 'restore', app.id ]);
cp.on('error', callback);
cp.on('exit', function (code, signal) {
debugApp(app, 'restorePostgreSql: done %s %s', code, signal);
if (!callback.called) callback(code ? 'restorePostgreSql failed with status ' + code : null);
});
cp.stdout.pipe(process.stdout);
cp.stderr.pipe(process.stderr);
input.pipe(cp.stdin).on('error', callback);
});
}
function setupMongoDb(app, callback) {
assert.strictEqual(typeof app, 'object');
assert.strictEqual(typeof callback, 'function');
debugApp(app, 'Setting up mongodb');
var container = docker.getContainer('mongodb');
var cmd = [ '/addons/mongodb/service.sh', 'add', app.id ];
container.exec({ Cmd: cmd, AttachStdout: true, AttachStderr: true }, function (error, execContainer) {
if (error) return callback(error);
execContainer.start(function (error, stream) {
if (error) return callback(error);
var stdout = new MemoryStream();
var stderr = new MemoryStream();
execContainer.modem.demuxStream(stream, stdout, stderr);
stderr.on('data', function (data) { debugApp(app, data.toString('utf8')); }); // set -e output
var chunks = [ ];
stdout.on('data', function (chunk) { chunks.push(chunk); });
stream.on('error', callback);
stream.on('end', function () {
var env = Buffer.concat(chunks).toString('utf8').split('\n').slice(0, -1); // remove trailing newline
debugApp(app, 'Setting mongodb addon config to %j', env);
appdb.setAddonConfig(app.id, 'mongodb', env, callback);
});
});
});
}
function teardownMongoDb(app, callback) {
var container = docker.getContainer('mongodb');
var cmd = [ '/addons/mongodb/service.sh', 'remove', app.id ];
debugApp(app, 'Tearing down mongodb');
container.exec({ Cmd: cmd, AttachStdout: true, AttachStderr: true }, function (error, execContainer) {
if (error) return callback(error);
execContainer.start(function (error, stream) {
if (error) return callback(error);
var data = '';
stream.on('error', callback);
stream.on('data', function (d) { data += d.toString('utf8'); });
stream.on('end', function () {
appdb.unsetAddonConfig(app.id, 'mongodb', callback);
});
});
});
}
function backupMongoDb(app, callback) {
debugApp(app, 'Backing up mongodb');
callback = once(callback); // ChildProcess exit may or may not be called after error
var output = fs.createWriteStream(path.join(paths.DATA_DIR, app.id, 'mongodbdump'));
output.on('error', callback);
var cp = spawn('/usr/bin/docker', [ 'exec', 'mongodb', '/addons/mongodb/service.sh', 'backup', app.id ]);
cp.on('error', callback);
cp.on('exit', function (code, signal) {
debugApp(app, 'backupMongoDb: done %s %s', code, signal);
if (!callback.called) callback(code ? 'backupMongoDb failed with status ' + code : null);
});
cp.stdout.pipe(output);
cp.stderr.pipe(process.stderr);
}
function restoreMongoDb(app, callback) {
callback = once(callback); // ChildProcess exit may or may not be called after error
setupMongoDb(app, function (error) {
if (error) return callback(error);
debugApp(app, 'restoreMongoDb');
var input = fs.createReadStream(path.join(paths.DATA_DIR, app.id, 'mongodbdump'));
input.on('error', callback);
// cannot get this to work through docker.exec
var cp = spawn('/usr/bin/docker', [ 'exec', '-i', 'mongodb', '/addons/mongodb/service.sh', 'restore', app.id ]);
cp.on('error', callback);
cp.on('exit', function (code, signal) {
debugApp(app, 'restoreMongoDb: done %s %s', code, signal);
if (!callback.called) callback(code ? 'restoreMongoDb failed with status ' + code : null);
});
cp.stdout.pipe(process.stdout);
cp.stderr.pipe(process.stderr);
input.pipe(cp.stdin).on('error', callback);
});
}
function forwardRedisPort(appId, callback) {
assert.strictEqual(typeof appId, 'string');
assert.strictEqual(typeof callback, 'function');
docker.getContainer('redis-' + appId).inspect(function (error, data) {
if (error) return callback(new Error('Unable to inspect container:' + error));
var redisPort = parseInt(safe.query(data, 'NetworkSettings.Ports.6379/tcp[0].HostPort'), 10);
if (!Number.isInteger(redisPort)) return callback(new Error('Unable to get container port mapping'));
vbox.forwardFromHostToVirtualBox('redis-' + appId, redisPort);
return callback(null);
});
}
// Ensures that app's addon redis container is running. Can be called when named container already exists/running
function setupRedis(app, callback) {
var redisPassword = generatePassword(64, false /* memorable */);
var redisVarsFile = path.join(paths.ADDON_CONFIG_DIR, 'redis-' + app.id + '_vars.sh');
var redisDataDir = path.join(paths.DATA_DIR, app.id + '/redis');
if (!safe.fs.writeFileSync(redisVarsFile, 'REDIS_PASSWORD=' + redisPassword)) {
return callback(new Error('Error writing redis config'));
}
if (!safe.fs.mkdirSync(redisDataDir) && safe.error.code !== 'EEXIST') return callback(new Error('Error creating redis data dir:' + safe.error));
var createOptions = {
name: 'redis-' + app.id,
Hostname: config.appFqdn(app.location),
Tty: true,
Image: 'cloudron/redis:0.3.2', // if you change this, fix setup/INFRA_VERSION as well
Cmd: null,
Volumes: {},
VolumesFrom: []
};
var isMac = os.platform() === 'darwin';
var startOptions = {
Binds: [
redisVarsFile + ':/etc/redis/redis_vars.sh:ro',
redisDataDir + ':/var/lib/redis:rw'
],
// On Mac (boot2docker), we have to export the port to external world for port forwarding from Mac to work
// On linux, export to localhost only for testing purposes and not for the app itself
PortBindings: {
'6379/tcp': [{ HostPort: '0', HostIp: isMac ? '0.0.0.0' : '127.0.0.1' }]
},
RestartPolicy: {
'Name': 'always',
'MaximumRetryCount': 0
}
};
var env = [
'REDIS_URL=redis://redisuser:' + redisPassword + '@redis-' + app.id,
'REDIS_PASSWORD=' + redisPassword,
'REDIS_HOST=redis-' + app.id,
'REDIS_PORT=6379'
];
var redisContainer = docker.getContainer(createOptions.name);
redisContainer.remove({ force: true, v: false }, function (ignoredError) {
docker.createContainer(createOptions, function (error) {
if (error && error.statusCode !== 409) return callback(error); // if not already created
redisContainer.start(startOptions, function (error) {
if (error && error.statusCode !== 304) return callback(error); // if not already running
appdb.setAddonConfig(app.id, 'redis', env, function (error) {
if (error) return callback(error);
forwardRedisPort(app.id, callback);
});
});
});
});
}
function teardownRedis(app, callback) {
var container = docker.getContainer('redis-' + app.id);
var removeOptions = {
force: true, // kill container if it's running
v: false // removes volumes associated with the container
};
container.remove(removeOptions, function (error) {
if (error && error.statusCode !== 404) return callback(new Error('Error removing container:' + error));
vbox.unforwardFromHostToVirtualBox('redis-' + app.id);
safe.fs.unlinkSync(paths.ADDON_CONFIG_DIR, 'redis-' + app.id + '_vars.sh');
shell.sudo('teardownRedis', [ RMAPPDIR_CMD, app.id + '/redis' ], function (error, stdout, stderr) {
if (error) return callback(new Error('Error removing redis data:' + error));
appdb.unsetAddonConfig(app.id, 'redis', callback);
});
});
}
function allocateAccessToken(app, callback) {
assert.strictEqual(typeof app, 'object');
assert.strictEqual(typeof callback, 'function');
var token = tokendb.generateToken();
var expiresAt = Number.MAX_SAFE_INTEGER; // basically never expire
var scopes = 'profile,users'; // TODO This should be put into the manifest and the user should know those
var clientId = ''; // meaningless for apps so far
tokendb.delByIdentifier(tokendb.PREFIX_APP + app.id, function (error) {
if (error && error.reason !== DatabaseError.NOT_FOUND) return callback(error);
tokendb.add(token, tokendb.PREFIX_APP + app.id, clientId, expiresAt, scopes, function (error) {
if (error) return callback(error);
var env = [
'CLOUDRON_TOKEN=' + token
];
debugApp(app, 'Setting token addon config to %j', env);
appdb.setAddonConfig(appId, 'token', env, callback);
});
});
}
function removeAccessToken(app, callback) {
assert.strictEqual(typeof app, 'object');
assert.strictEqual(typeof callback, 'function');
tokendb.delByIdentifier(tokendb.PREFIX_APP + app.id, function (error) {
if (error && error.reason !== DatabaseError.NOT_FOUND) console.error(error);
appdb.unsetAddonConfig(app.id, 'token', callback);
});
}