CartoDB-SQL-API/app/services/user_database_service.js
2017-08-09 12:50:16 +02:00

112 lines
3.7 KiB
JavaScript

'use strict';
var step = require('step');
var _ = require('underscore');
function UserDatabaseService(metadataBackend) {
this.metadataBackend = metadataBackend;
}
/**
* Callback is invoked with `dbParams` and `authDbParams`.
* `dbParams` depends on AuthApi verification so it might return a public user with just SELECT permission, where
* `authDbParams` will always return connection params as AuthApi had authorized the connection.
* That might be useful when you have to run a query with and without permissions.
*
* @param {AuthApi} authApi
* @param {String} cdbUsername
* @param {Function} callback (err, dbParams, authDbParams)
*/
UserDatabaseService.prototype.getConnectionParams = function (authApi, cdbUsername, callback) {
var self = this;
var dbParams;
var dbopts = {
port: global.settings.db_port,
pass: global.settings.db_pubuser_pass
};
// 1. Get database from redis via the username stored in the host header subdomain
// 2. Run the request through OAuth to get R/W user id if signed
// 3. Set to user authorization params
step(
function getDatabaseConnectionParams() {
self.metadataBackend.getAllUserDBParams(cdbUsername, this);
},
function authenticate(err, userDBParams) {
var next = this;
if (err) {
err.http_status = 404;
err.message = "Sorry, we can't find CartoDB user '" + cdbUsername + "'. " +
"Please check that you have entered the correct domain.";
return callback(err);
}
dbParams = userDBParams;
dbopts.host = dbParams.dbhost;
dbopts.dbname = dbParams.dbname;
dbopts.user = (!!dbParams.dbpublicuser) ? dbParams.dbpublicuser : global.settings.db_pubuser;
authApi.verifyCredentials({
metadataBackend: self.metadataBackend,
apiKey: dbParams.apikey
}, next);
},
function getUserLimits (err, isAuthenticated) {
var next = this;
if (err) {
return next(err);
}
self.metadataBackend.getUserTimeoutRenderLimits(cdbUsername, function (err, timeoutRenderLimit) {
if (err) {
return next(err);
}
var userLimits = {
timeout: isAuthenticated ? timeoutRenderLimit.render : timeoutRenderLimit.renderPublic
};
next(null, isAuthenticated, userLimits);
});
},
function setDBAuth(err, isAuthenticated, userLimits) {
if (err) {
throw err;
}
var user = _.template(global.settings.db_user, {user_id: dbParams.dbuser});
var pass = null;
if (global.settings.hasOwnProperty('db_user_pass')) {
pass = _.template(global.settings.db_user_pass, {
user_id: dbParams.dbuser,
user_password: dbParams.dbpass
});
}
if (_.isBoolean(isAuthenticated) && isAuthenticated) {
dbopts.authenticated = isAuthenticated;
dbopts.user = user;
dbopts.pass = pass;
}
var authDbOpts = _.defaults({user: user, pass: pass}, dbopts);
return this(null, dbopts, authDbOpts, userLimits);
},
function errorHandle(err, dbopts, authDbOpts, userLimits) {
if (err) {
return callback(err);
}
callback(null, dbopts, authDbOpts, userLimits);
}
);
};
module.exports = UserDatabaseService;