455 lines
17 KiB
JavaScript
455 lines
17 KiB
JavaScript
var Step = require('step');
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var _ = require('underscore');
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function TemplateMapsController(app, serverOptions, templateMaps, signedMaps, metadataBackend, templateBaseUrl) {
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this.app = app;
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this.serverOptions = serverOptions;
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this.templateMaps = templateMaps;
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this.signedMaps = signedMaps;
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this.metadataBackend = metadataBackend;
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this.templateBaseUrl = templateBaseUrl;
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}
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module.exports = TemplateMapsController;
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TemplateMapsController.prototype.register = function(app) {
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app.get(this.templateBaseUrl + '/:template_id/jsonp', this.jsonp.bind(this));
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app.post(this.templateBaseUrl, this.create.bind(this));
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app.put(this.templateBaseUrl + '/:template_id', this.update.bind(this));
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app.get(this.templateBaseUrl + '/:template_id', this.retrieve.bind(this));
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app.del(this.templateBaseUrl + '/:template_id', this.destroy.bind(this));
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app.get(this.templateBaseUrl, this.list.bind(this));
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};
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// Add a template
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TemplateMapsController.prototype.create = function(req, res) {
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var self = this;
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this.app.doCORS(res);
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var cdbuser = self.app.userByReq(req);
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Step(
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function checkPerms(){
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self.serverOptions.authorizedByAPIKey(req, this);
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},
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function addTemplate(err, authenticated) {
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if ( err ) throw err;
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if (authenticated !== 1) {
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err = new Error("Only authenticated user can create templated maps");
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err.http_status = 403;
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throw err;
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}
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if ( ! req.headers['content-type'] || req.headers['content-type'].split(';')[0] != 'application/json' )
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throw new Error('template POST data must be of type application/json');
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var cfg = req.body;
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self.templateMaps.addTemplate(cdbuser, cfg, this);
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},
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function prepareResponse(err, tpl_id){
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if ( err ) throw err;
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// NOTE: might omit "cdbuser" if == dbowner ...
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return { template_id: cdbuser + '@' + tpl_id };
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},
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function finish(err, response){
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if ( req.profiler ) {
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res.header('X-Tiler-Profiler', req.profiler.toJSONString());
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}
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if (err){
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response = { error: ''+err };
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var statusCode = 400;
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if ( ! _.isUndefined(err.http_status) ) {
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statusCode = err.http_status;
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}
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self.app.sendError(res, response, statusCode, 'POST TEMPLATE', err);
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} else {
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self.app.sendResponse(res, [response, 200]);
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}
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}
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);
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};
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// Update a template
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TemplateMapsController.prototype.update = function(req, res) {
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var self = this;
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this.app.doCORS(res);
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var cdbuser = this.app.userByReq(req);
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var template;
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var tpl_id;
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Step(
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function checkPerms(){
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self.serverOptions.authorizedByAPIKey(req, this);
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},
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function updateTemplate(err, authenticated) {
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if ( err ) throw err;
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if (authenticated !== 1) {
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err = new Error("Only authenticated user can list templated maps");
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err.http_status = 403;
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throw err;
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}
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if ( ! req.headers['content-type'] || req.headers['content-type'].split(';')[0] != 'application/json' )
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throw new Error('template PUT data must be of type application/json');
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template = req.body;
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tpl_id = req.params.template_id.split('@');
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if ( tpl_id.length > 1 ) {
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if ( tpl_id[0] != cdbuser ) {
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err = new Error("Invalid template id '"
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+ req.params.template_id + "' for user '" + cdbuser + "'");
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err.http_status = 404;
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throw err;
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}
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tpl_id = tpl_id[1];
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}
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self.templateMaps.updTemplate(cdbuser, tpl_id, template, this);
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},
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function prepareResponse(err){
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if ( err ) throw err;
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return { template_id: cdbuser + '@' + tpl_id };
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},
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function finish(err, response){
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if ( req.profiler ) {
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res.header('X-Tiler-Profiler', req.profiler.toJSONString());
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}
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if (err){
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var statusCode = 400;
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response = { error: ''+err };
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if ( ! _.isUndefined(err.http_status) ) {
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statusCode = err.http_status;
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}
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self.app.sendError(res, response, statusCode, 'PUT TEMPLATE', err);
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} else {
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self.app.sendResponse(res, [response, 200]);
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}
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}
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);
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};
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// Get a specific template
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TemplateMapsController.prototype.retrieve = function(req, res) {
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var self = this;
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if ( req.profiler && req.profiler.statsd_client ) {
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req.profiler.start('windshaft-cartodb.get_template');
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}
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this.app.doCORS(res);
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var cdbuser = this.app.userByReq(req);
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var template;
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var tpl_id;
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Step(
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function checkPerms(){
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self.serverOptions.authorizedByAPIKey(req, this);
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},
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function updateTemplate(err, authenticated) {
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if ( err ) throw err;
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if (authenticated !== 1) {
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err = new Error("Only authenticated users can get template maps");
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err.http_status = 403;
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throw err;
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}
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tpl_id = req.params.template_id.split('@');
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if ( tpl_id.length > 1 ) {
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if ( tpl_id[0] != cdbuser ) {
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var err = new Error("Cannot get template id '"
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+ req.params.template_id + "' for user '" + cdbuser + "'");
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err.http_status = 404;
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throw err;
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}
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tpl_id = tpl_id[1];
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}
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self.templateMaps.getTemplate(cdbuser, tpl_id, this);
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},
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function prepareResponse(err, tpl_val){
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if ( err ) throw err;
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if ( ! tpl_val ) {
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err = new Error("Cannot find template '" + tpl_id + "' of user '" + cdbuser + "'");
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err.http_status = 404;
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throw err;
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}
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// auth_id was added by ourselves,
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// so we remove it before returning to the user
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delete tpl_val.auth_id;
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return { template: tpl_val };
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},
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function finish(err, response){
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if (err){
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var statusCode = 400;
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response = { error: ''+err };
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if ( ! _.isUndefined(err.http_status) ) {
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statusCode = err.http_status;
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}
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self.app.sendError(res, response, statusCode, 'GET TEMPLATE', err);
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} else {
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self.app.sendResponse(res, [response, 200]);
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}
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}
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);
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};
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// Delete a specific template
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TemplateMapsController.prototype.destroy = function(req, res) {
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var self = this;
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if ( req.profiler && req.profiler.statsd_client ) {
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req.profiler.start('windshaft-cartodb.delete_template');
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}
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this.app.doCORS(res);
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var cdbuser = this.app.userByReq(req);
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var template;
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var tpl_id;
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Step(
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function checkPerms(){
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self.serverOptions.authorizedByAPIKey(req, this);
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},
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function updateTemplate(err, authenticated) {
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if ( err ) throw err;
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if (authenticated !== 1) {
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err = new Error("Only authenticated users can delete template maps");
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err.http_status = 403;
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throw err;
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}
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tpl_id = req.params.template_id.split('@');
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if ( tpl_id.length > 1 ) {
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if ( tpl_id[0] != cdbuser ) {
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var err = new Error("Cannot find template id '"
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+ req.params.template_id + "' for user '" + cdbuser + "'");
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err.http_status = 404;
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throw err;
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}
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tpl_id = tpl_id[1];
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}
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self.templateMaps.delTemplate(cdbuser, tpl_id, this);
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},
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function prepareResponse(err, tpl_val){
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if ( err ) throw err;
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return { status: 'ok' };
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},
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function finish(err, response){
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if (err){
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var statusCode = 400;
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response = { error: ''+err };
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if ( ! _.isUndefined(err.http_status) ) {
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statusCode = err.http_status;
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}
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self.app.sendError(res, response, statusCode, 'DELETE TEMPLATE', err);
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} else {
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self.app.sendResponse(res, ['', 204]);
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}
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}
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);
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};
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// Get a list of owned templates
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TemplateMapsController.prototype.list = function(req, res) {
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var self = this;
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if ( req.profiler && req.profiler.statsd_client ) {
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req.profiler.start('windshaft-cartodb.get_template_list');
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}
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this.app.doCORS(res);
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var cdbuser = this.app.userByReq(req);
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Step(
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function checkPerms(){
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self.serverOptions.authorizedByAPIKey(req, this);
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},
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function listTemplates(err, authenticated) {
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if ( err ) throw err;
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if (authenticated !== 1) {
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err = new Error("Only authenticated user can list templated maps");
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err.http_status = 403;
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throw err;
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}
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self.templateMaps.listTemplates(cdbuser, this);
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},
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function prepareResponse(err, tpl_ids){
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if ( err ) throw err;
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// NOTE: might omit "cbduser" if == dbowner ...
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var ids = _.map(tpl_ids, function(id) { return cdbuser + '@' + id; });
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return { template_ids: ids };
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},
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function finish(err, response){
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var statusCode = 200;
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if (err){
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response = { error: ''+err };
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if ( ! _.isUndefined(err.http_status) ) {
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statusCode = err.http_status;
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}
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self.app.sendError(res, response, statusCode, 'GET TEMPLATE LIST', err);
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} else {
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self.app.sendResponse(res, [response, statusCode]);
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}
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}
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);
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};
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/**
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* jsonp endpoint, allows to instantiate a template with a json call.
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* callback query argument is mandatory
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*/
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TemplateMapsController.prototype.jsonp = function(req, res) {
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var self = this;
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if ( req.profiler && req.profiler.statsd_client) {
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req.profiler.start('windshaft-cartodb.instance_template_get');
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}
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Step(
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function() {
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if ( req.query.callback === undefined || req.query.callback.length === 0) {
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throw new Error('callback parameter should be present and be a function name');
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}
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var config = {};
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if(req.query.config) {
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try {
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config = JSON.parse(req.query.config);
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} catch(e) {
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throw new Error('badformed config parameter, should be a valid JSON');
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}
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}
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self.instantiateTemplate(req, res, config, this);
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}, function(err, response) {
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self.finish_instantiation(err, response, res, req);
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}
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);
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};
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// Instantiate a template
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TemplateMapsController.prototype.instantiateTemplate = function(req, res, template_params, callback) {
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var self = this;
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this.app.doCORS(res);
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var response = {};
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var template;
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var layergroup;
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var fakereq; // used for call to createLayergroup
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var cdbuser = self.app.userByReq(req);
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// Format of template_id: [<template_owner>]@<template_id>
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var tpl_id = req.params.template_id.split('@');
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if ( tpl_id.length > 1 ) {
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if ( tpl_id[0] && tpl_id[0] != cdbuser ) {
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var err = new Error('Cannot instanciate map of user "'
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+ tpl_id[0] + '" on database of user "'
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+ cdbuser + '"');
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err.http_status = 403;
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callback(err);
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return;
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}
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tpl_id = tpl_id[1];
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}
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var auth_token = req.query.auth_token;
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Step(
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function getTemplate(){
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self.templateMaps.getTemplate(cdbuser, tpl_id, this);
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},
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function checkAuthorized(err, data) {
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if ( req.profiler ) req.profiler.done('getTemplate');
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if ( err ) throw err;
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if ( ! data ) {
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err = new Error("Template '" + tpl_id + "' of user '" + cdbuser + "' not found");
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err.http_status = 404;
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throw err;
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}
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template = data;
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var cert = self.templateMaps.getTemplateCertificate(template);
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var authorized = false;
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try {
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// authorizedByCert will throw if unauthorized
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authorized = self.signedMaps.authorizedByCert(cert, auth_token);
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} catch (err) {
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// we catch to add http_status
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err.http_status = 403;
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throw err;
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}
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if ( ! authorized ) {
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err = new Error('Unauthorized template instanciation');
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err.http_status = 403;
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throw err;
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}
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/*if ( (! req.headers['content-type'] || req.headers['content-type'].split(';')[0] != 'application/json') && req.query.callback === undefined) {
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throw new Error('template POST data must be of type application/json, it is instead ');
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}*/
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//var template_params = req.body;
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if ( req.profiler ) req.profiler.done('authorizedByCert');
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return self.templateMaps.instance(template, template_params);
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},
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function prepareParams(err, instance){
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if ( req.profiler ) req.profiler.done('TemplateMaps_instance');
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if ( err ) throw err;
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layergroup = instance;
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fakereq = { query: {}, params: {}, headers: _.clone(req.headers),
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method: req.method,
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res: res,
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profiler: req.profiler
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};
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self.app.setDBParams(cdbuser, fakereq.params, this);
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},
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function setApiKey(err){
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if ( req.profiler ) req.profiler.done('setDBParams');
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if ( err ) throw err;
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self.metadataBackend.getUserMapKey(cdbuser, this);
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},
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function createLayergroup(err, val) {
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if ( req.profiler ) req.profiler.done('getUserMapKey');
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if ( err ) throw err;
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fakereq.params.api_key = val;
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self.app.createLayergroup(layergroup, fakereq, this);
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},
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function signLayergroup(err, resp) {
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// NOTE: createLayergroup uses profiler.start()/end() internally
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//if ( req.profiler ) req.profiler.done('createLayergroup');
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if ( err ) throw err;
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response = resp;
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var signer = cdbuser;
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var map_id = response.layergroupid.split(':')[0]; // dropping last_updated
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var crt_id = template.auth_id; // check ?
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if ( ! crt_id ) {
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var errmsg = "Template '" + tpl_id + "' of user '" + cdbuser + "' has no signature";
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// Is this really illegal ?
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// Maybe we could just return an unsigned layergroupid
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// in this case...
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err = new Error(errmsg);
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err.http_status = 403; // Forbidden, we refuse to respond to this
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throw err;
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}
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self.signedMaps.signMap(signer, map_id, crt_id, this);
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},
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function prepareResponse(err) {
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if ( req.profiler ) req.profiler.done('signMap');
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if ( err ) throw err;
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//console.log("Response from createLayergroup: "); console.dir(response);
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// Add the signature part to the token!
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var tplhash = self.templateMaps.fingerPrint(template).substring(0,8);
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if ( req.profiler ) req.profiler.done('fingerPrint');
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response.layergroupid = cdbuser + '@' + tplhash + '@' + response.layergroupid;
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return response;
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},
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callback
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);
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};
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TemplateMapsController.prototype.finish_instantiation = function(err, response, res, req) {
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if ( req.profiler ) {
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res.header('X-Tiler-Profiler', req.profiler.toJSONString());
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}
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if (err) {
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var statusCode = 400;
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response = { error: ''+err };
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if ( ! _.isUndefined(err.http_status) ) {
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statusCode = err.http_status;
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}
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if(global.environment.debug) {
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response.stack = err.stack;
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}
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this.app.sendError(res, response, statusCode, 'POST INSTANCE TEMPLATE', err);
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} else {
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this.app.sendResponse(res, [response, 200]);
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}
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};
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