mirror of https://gitee.com/bigwinds/arangodb
107 lines
3.6 KiB
JavaScript
107 lines
3.6 KiB
JavaScript
'use strict';
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////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2016 ArangoDB GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Alan Plum
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////////////////////////////////////////////////////////////////////////////////
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const NotFound = require('http-errors').NotFound;
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const fs = require('fs');
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const internal = require('internal');
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const errors = require('@arangodb').errors;
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const FoxxManager = require('@arangodb/foxx/manager');
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const swaggerJson = require('@arangodb/foxx/legacy/swagger').swaggerJson;
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const NOT_FOUND = errors.ERROR_APP_NOT_FOUND.code;
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const SWAGGER_ROOT = fs.join(internal.startupPath, 'server', 'assets', 'swagger');
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module.exports = function createSwaggerRouteHandler(foxxMount, opts) {
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if (!opts) {
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opts = {};
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}
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if (typeof opts === 'function') {
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opts = {before: opts};
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}
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const defaultAppPath = opts.appPath || foxxMount;
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const defaultIndexFile = opts.indexFile || 'index.html';
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const defaultSwaggerRoot = opts.swaggerRoot || SWAGGER_ROOT;
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const defaultSwaggerJsonHandler = opts.swaggerJson || swaggerJson;
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return function (req, res) {
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let appPath = defaultAppPath;
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let indexFile = defaultIndexFile;
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let swaggerRoot = defaultSwaggerRoot;
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if (typeof opts.before === 'function') {
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const result = opts.before.apply(this, arguments);
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if (result === false) {
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return;
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}
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if (result.indexFile) {
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indexFile = result.indexFile;
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}
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if (result.appPath) {
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appPath = result.appPath;
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}
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if (result.swaggerRoot) {
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swaggerRoot = result.swaggerRoot;
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}
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}
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let path = req.suffix;
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if (!path) {
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let params = Object.keys(req._raw.parameters || {}).reduce(function (part, name) {
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return part + encodeURIComponent(name) + '=' + encodeURIComponent(req._raw.parameters[name]) + '&';
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}, '?');
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params = params.slice(0, params.length - 1);
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res.redirect(req.makeAbsolute(req.path + '/index.html') + params);
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return;
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}
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if (path === 'swagger.json') {
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let swaggerJsonHandler = defaultSwaggerJsonHandler;
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if (typeof swaggerJsonHandler === 'string') {
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path = swaggerJsonHandler;
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} else if (typeof swaggerJsonHandler === 'function') {
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let foxx;
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try {
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foxx = FoxxManager.ensureRouted(appPath);
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} catch (e) {
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if (e.isArangoError && e.errorNum === NOT_FOUND) {
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throw new NotFound(e.message);
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}
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throw e;
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}
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swaggerJsonHandler(req, res, {appPath, foxx});
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return;
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} else if (swaggerJsonHandler && typeof swaggerJsonHandler === 'object') {
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res.json(swaggerJsonHandler);
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return;
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}
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} else if (path === 'index.html') {
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path = indexFile;
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}
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const filePath = path.charAt(0) === '/' ? path : fs.safeJoin(swaggerRoot, path);
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if (!fs.isFile(filePath)) {
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throw new NotFound(`unknown path "${req._raw.url}"`);
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}
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res.sendFile(filePath);
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};
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};
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