mirror of https://gitee.com/bigwinds/arangodb
2361 lines
65 KiB
JavaScript
2361 lines
65 KiB
JavaScript
/*jshint strict: false, unused: false, esnext: true */
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/*global JSON_CURSOR */
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////////////////////////////////////////////////////////////////////////////////
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/// @brief JavaScript actions module
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///
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/// @file
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///
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/// DISCLAIMER
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///
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/// Copyright 2014-2015 ArangoDB GmbH, Cologne, Germany
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/// Copyright 2012-2014 triagens 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 Dr. Frank Celler
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/// @author Copyright 2014-2015, ArangoDB GmbH, Cologne, Germany
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/// @author Copyright 2012-2014, triAGENS GmbH, Cologne, Germany
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////////////////////////////////////////////////////////////////////////////////
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module.isSystem = true;
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var internal = require("internal");
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var fs = require("fs");
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var util = require("util");
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var console = require("console");
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var _ = require("underscore");
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var arangodb = require("org/arangodb");
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var foxxManager = require("org/arangodb/foxx/manager");
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var ErrorStackParser = require("error-stack-parser");
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// -----------------------------------------------------------------------------
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// --SECTION-- private variables
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief current routing tree
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///
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/// The route tree contains the URL hierarchy. In order to find a handler for a
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/// request, you can traverse this tree. You need to backtrack if you handler
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/// issues a `next()`.
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///
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/// In order to speed up URL matching and next-finding, the tree is converted in
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/// to a flat list, such that the least-specific middleware method comes
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/// first. Then all other middleware methods with increasing specificity
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/// followed by the most-specific method. Then all other methods with decreasing
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/// specificity.
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///
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/// Note that the object first on an entry for each database.
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///
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/// {
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/// _system: {
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/// middleware: [ ... ],
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/// routes: [ ... ],
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/// ...
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/// }
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/// }
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////////////////////////////////////////////////////////////////////////////////
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var RoutingTree = {};
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////////////////////////////////////////////////////////////////////////////////
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/// @brief current routing list
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///
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/// The flattened routing tree. The methods `flattenRoutingTree` takes a routing
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/// tree and returns a routing list.
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///
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/// Note that the object first contains an entry for each database, then an
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/// entry for each method (like `GET`).
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///
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/// {
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/// _system: {
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/// GET: [ ... ],
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/// POST: [ ... ],
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/// ...
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/// }
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/// }
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////////////////////////////////////////////////////////////////////////////////
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var RoutingList = {};
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////////////////////////////////////////////////////////////////////////////////
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/// @brief all methods
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////////////////////////////////////////////////////////////////////////////////
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var ALL_METHODS = [ "DELETE", "GET", "HEAD", "OPTIONS", "POST", "PUT", "PATCH" ];
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// -----------------------------------------------------------------------------
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// --SECTION-- private functions for callbacks
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief function that's returned for non-implemented actions
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////////////////////////////////////////////////////////////////////////////////
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function notImplementedFunction (route, message) {
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'use strict';
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message += "\nThis error was triggered by the following route: " + route.name;
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console.errorLines(message);
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return function (req, res, options, next) {
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res.responseCode = exports.HTTP_NOT_IMPLEMENTED;
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res.contentType = "text/plain";
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res.body = message;
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};
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief creates a callback for a callback action given as string
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////////////////////////////////////////////////////////////////////////////////
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function createCallbackActionCallbackString (callback, foxxModule, route) {
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'use strict';
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var args = {
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module: module.root,
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require: function (path) {
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return foxxModule.require(path);
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}
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};
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var keys = Object.keys(args);
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var content = "return (" + callback + ");";
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var script = Function.apply(null, keys.concat(content));
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var fn = internal.executeScript("(" + script + ")", undefined, route);
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if (fn) {
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return fn.apply(null, keys.map(function (key) {
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return args[key];
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}));
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}
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return notImplementedFunction(route, util.format(
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"could not generate callback for '%s'",
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callback
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));
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief looks up a callback for a callback action given as string
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////////////////////////////////////////////////////////////////////////////////
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function lookupCallbackActionCallbackString (route, action, foxxModule) {
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'use strict';
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var func;
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try {
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func = createCallbackActionCallbackString(action.callback, foxxModule, route);
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}
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catch (err) {
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func = errorFunction(route, util.format(
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"an error occurred constructing callback for '%s': %s",
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action.callback, String(err.stack || err)
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));
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}
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return {
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controller: func,
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options: action.options || {},
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methods: action.methods || ALL_METHODS
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};
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief looks up a callback for a callback action
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////////////////////////////////////////////////////////////////////////////////
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function lookupCallbackActionCallback (route, action, foxxModule) {
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'use strict';
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if (typeof action.callback === 'string') {
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return lookupCallbackActionCallbackString(route, action, foxxModule);
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}
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if (typeof action.callback === 'function') {
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return {
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controller: action.callback,
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options: action.options || {},
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methods: action.methods || ALL_METHODS
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};
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}
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return {
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controller: errorFunction(route, util.format(
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"an error occurred while generating callback '%s': unknown type '%s'",
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action.callback, typeof action.callback
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)),
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options: action.options || {},
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methods: action.methods || ALL_METHODS
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};
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief returns module or error function
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////////////////////////////////////////////////////////////////////////////////
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function requireModule (name, route) {
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'use strict';
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try {
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return { module: require(name) };
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}
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catch (err) {
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if (err instanceof internal.ArangoError && err.errorNum === internal.errors.ERROR_MODULE_NOT_FOUND.code) {
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return notImplementedFunction(route, util.format(
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"an error occurred while loading the action module '%s': %s",
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name, String(err.stack || err)
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));
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}
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else {
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return errorFunction(route, util.format(
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"an error occurred while loading action module '%s': %s",
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name, String(err.stack || err)
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));
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}
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief returns function in module or error function
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////////////////////////////////////////////////////////////////////////////////
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function moduleFunction (actionModule, name, route) {
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'use strict';
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var func = actionModule[name];
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var type = typeof func;
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if (type !== 'function') {
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func = errorFunction(route, util.format(
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"invalid definition ('%s') for '%s' action in action module '%s'",
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type, name, actionModule.id
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));
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}
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return func;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief looks up a callback for a module action
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////////////////////////////////////////////////////////////////////////////////
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function lookupCallbackActionDo (route, action) {
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'use strict';
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var path = action['do'].split("/");
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var funcName = path.pop();
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var moduleName = path.join("/");
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var actionModule = requireModule(moduleName, route);
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// module not found or load error
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if (typeof actionModule === 'function') {
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return {
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controller: func,
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options: action.options || {},
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methods: action.methods || ALL_METHODS
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};
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}
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// module found, extract function
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actionModule = actionModule.module;
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var func;
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if (actionModule.hasOwnProperty(funcName)) {
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func = moduleFunction(actionModule, funcName, route);
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}
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else {
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func = notImplementedFunction(route, util.format(
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"could not find action named '%s' in module '%s'",
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funcName, moduleName
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));
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}
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return {
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controller: func,
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options: action.options || {},
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methods: action.methods || ALL_METHODS
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};
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief creates the callback for a controller action
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////////////////////////////////////////////////////////////////////////////////
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function createCallbackActionController (actionModule, route) {
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'use strict';
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return function (req, res, options, next) {
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var m = req.requestType.toLowerCase();
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if (! actionModule.hasOwnProperty(m)) {
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m = 'do';
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}
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if (actionModule.hasOwnProperty(m)) {
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return moduleFunction(actionModule, m, route)(req, res, options, next);
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}
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next();
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};
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief looks up a callback for a controller action
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////////////////////////////////////////////////////////////////////////////////
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function lookupCallbackActionController (route, action) {
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'use strict';
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var actionModule = requireModule(action.controller, route);
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if (typeof actionModule === 'function') {
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return {
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controller: actionModule,
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options: action.options || {},
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methods: action.methods || ALL_METHODS
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};
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}
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return {
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controller: createCallbackActionController(actionModule.module, route),
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options: action.options || {},
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methods: action.methods || ALL_METHODS
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};
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief looks up a callback for a prefix controller action
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////////////////////////////////////////////////////////////////////////////////
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function lookupCallbackActionPrefixController (route, action) {
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'use strict';
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var prefix = action.prefixController;
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return {
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controller: function (req, res, options, next) {
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var func;
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// determine path
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var path;
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if (req.hasOwnProperty('suffix')) {
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path = prefix + "/" + req.suffix.join("/");
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}
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else {
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path = prefix;
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}
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// load module
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var actionModule = requireModule(path, route);
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if (typeof actionModule === 'function') {
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actionModule(req, res, options, next);
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}
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else {
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createCallbackActionController(actionModule.module, route)(req, res, options, next);
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}
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},
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options: action.options || {},
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methods: action.methods || ALL_METHODS
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};
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief looks up a callback for an action
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////////////////////////////////////////////////////////////////////////////////
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function lookupCallbackAction (route, action, context) {
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'use strict';
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// .............................................................................
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// short-cut for prefix controller
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// .............................................................................
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if (typeof action === 'string') {
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return lookupCallbackAction(route, { prefixController: action });
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}
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// .............................................................................
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// user-defined function
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// .............................................................................
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if (action.hasOwnProperty('callback')) {
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return lookupCallbackActionCallback(route, action, context.module);
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}
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// .............................................................................
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// function from module
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// .............................................................................
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if (action.hasOwnProperty('do')) {
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return lookupCallbackActionDo(route, action);
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}
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// .............................................................................
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// controller module
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// .............................................................................
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if (action.hasOwnProperty('controller')) {
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return lookupCallbackActionController(route, action);
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}
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// .............................................................................
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// prefix controller
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// .............................................................................
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if (action.hasOwnProperty('prefixController')) {
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return lookupCallbackActionPrefixController(route, action);
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}
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return null;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief creates a callback for static data
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////////////////////////////////////////////////////////////////////////////////
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function createCallbackStatic (code, type, body) {
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return function (req, res, options, next) {
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res.responseCode = code;
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res.contentType = type;
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res.body = body;
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};
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief looks up a callback for static data
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////////////////////////////////////////////////////////////////////////////////
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function lookupCallbackStatic (content) {
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'use strict';
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var type;
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var body;
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var methods;
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var options;
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if (typeof content === 'string') {
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type = "text/plain";
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body = content;
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methods = [ exports.GET, exports.HEAD ];
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options = {};
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}
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else {
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type = content.contentType || "text/plain";
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body = content.body || "";
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methods = content.methods || [ exports.GET, exports.HEAD ];
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options = content.options || {};
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}
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return {
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controller: createCallbackStatic(exports.HTTP_OK, type, body),
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options: options,
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methods: methods
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};
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief looks up a callback
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///
|
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/// A callback is a structure with `controller`, `options`, and `methods`.
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///
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/// {
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/// controller: function (req, res, options, next) ...,
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/// options: { ... },
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/// methods: [ ... ]
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/// }
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///
|
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/// The controller contains the function to call. `req` is the request, `res`
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/// holds the response, `options` is the options array above and `methods` is a
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/// list of methods to which the controller applies.
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////////////////////////////////////////////////////////////////////////////////
|
|
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|
function lookupCallback (route, context) {
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'use strict';
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if (route.hasOwnProperty('content')) {
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return lookupCallbackStatic(route.content);
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}
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else if (route.hasOwnProperty('action')) {
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return lookupCallbackAction(route, route.action, context);
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}
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return null;
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}
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|
|
|
// -----------------------------------------------------------------------------
|
|
// --SECTION-- private functions for routing
|
|
// -----------------------------------------------------------------------------
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief splits a URL into parts
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function splitUrl (url) {
|
|
'use strict';
|
|
|
|
var cleaned;
|
|
var i;
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|
var parts;
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|
var re1;
|
|
var re2;
|
|
var ors;
|
|
|
|
re1 = /^(:[a-zA-Z]+)*$/;
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|
re2 = /^(:[a-zA-Z]+)\?$/;
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|
|
|
parts = url.split("/");
|
|
cleaned = [];
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|
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|
for (i = 0; i < parts.length; ++i) {
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var part = parts[i];
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|
|
|
if (part !== "" && part !== ".") {
|
|
if (part === "..") {
|
|
cleaned.pop();
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|
}
|
|
else if (part === "*") {
|
|
cleaned.push({ prefix: true });
|
|
}
|
|
else if (re1.test(part)) {
|
|
ors = [ part.substr(1) ];
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|
cleaned.push({ parameters: ors });
|
|
}
|
|
else if (re2.test(part)) {
|
|
ors = [ part.substr(1, part.length - 2) ];
|
|
cleaned.push({ parameters: ors, optional: true });
|
|
}
|
|
else {
|
|
cleaned.push(part);
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|
}
|
|
}
|
|
}
|
|
|
|
return cleaned;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief looks up an URL
|
|
///
|
|
/// Splits an URL into
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|
///
|
|
/// {
|
|
/// urlParts: [ ... ],
|
|
/// methods: [ ... ],
|
|
/// constraints: {}
|
|
/// }
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function lookupUrl (prefix, url) {
|
|
'use strict';
|
|
|
|
if (url === undefined || url === '') {
|
|
return null;
|
|
}
|
|
|
|
if (typeof url === 'string') {
|
|
return {
|
|
urlParts: splitUrl(prefix + "/" + url),
|
|
methods: [ exports.GET, exports.HEAD ],
|
|
constraint: {}
|
|
};
|
|
}
|
|
|
|
if (url.hasOwnProperty('match')) {
|
|
return {
|
|
urlParts: splitUrl(prefix + "/" + url.match),
|
|
methods: url.methods || ALL_METHODS,
|
|
constraint: url.constraint || {}
|
|
};
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief defines a new route part
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function defineRoutePart (storage, route, parts, pos, constraint, callback) {
|
|
'use strict';
|
|
|
|
var i;
|
|
|
|
var part = parts[pos];
|
|
|
|
// otherwise we'll get an exception below
|
|
if (part === undefined) {
|
|
part = '';
|
|
}
|
|
|
|
// .............................................................................
|
|
// exact match
|
|
// .............................................................................
|
|
|
|
if (typeof part === "string") {
|
|
if (! storage.hasOwnProperty('exact')) {
|
|
storage.exact = {};
|
|
}
|
|
|
|
if (! storage.exact.hasOwnProperty(part)) {
|
|
storage.exact[part] = {};
|
|
}
|
|
|
|
var subpart = storage.exact[part];
|
|
|
|
if (pos + 1 < parts.length) {
|
|
defineRoutePart(subpart, route, parts, pos + 1, constraint, callback);
|
|
}
|
|
else {
|
|
if (! subpart.hasOwnProperty('routes')) {
|
|
subpart.routes = [];
|
|
}
|
|
|
|
subpart.routes.push({
|
|
route: route,
|
|
priority: route.priority || 0,
|
|
callback: callback
|
|
});
|
|
}
|
|
}
|
|
|
|
// .............................................................................
|
|
// parameter match
|
|
// .............................................................................
|
|
|
|
else if (part.hasOwnProperty('parameters')) {
|
|
if (! storage.hasOwnProperty('parameters')) {
|
|
storage.parameters = [];
|
|
}
|
|
|
|
var ok = true;
|
|
|
|
if (part.optional) {
|
|
if (pos + 1 < parts.length) {
|
|
console.error("cannot define optional parameter within url, ignoring route '%s'", route.name);
|
|
ok = false;
|
|
}
|
|
else if (part.parameters.length !== 1) {
|
|
console.error("cannot define multiple optional parameters, ignoring route '%s'", route.name);
|
|
ok = false;
|
|
}
|
|
}
|
|
|
|
if (ok) {
|
|
for (i = 0; i < part.parameters.length; ++i) {
|
|
var p = part.parameters[i];
|
|
var subsub = { parameter: p, match: {} };
|
|
storage.parameters.push(subsub);
|
|
|
|
if (constraint.hasOwnProperty(p)) {
|
|
subsub.constraint = constraint[p];
|
|
}
|
|
|
|
subsub.optional = part.optional || false;
|
|
|
|
if (pos + 1 < parts.length) {
|
|
defineRoutePart(subsub.match, route, parts, pos + 1, constraint, callback);
|
|
}
|
|
else {
|
|
var match = subsub.match;
|
|
|
|
if (! match.hasOwnProperty('routes')) {
|
|
match.routes = [];
|
|
}
|
|
|
|
match.routes.push({
|
|
route: route,
|
|
priority: route.priority || 0,
|
|
callback: callback
|
|
});
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// .............................................................................
|
|
// prefix match
|
|
// .............................................................................
|
|
|
|
else if (part.hasOwnProperty('prefix')) {
|
|
if (! storage.hasOwnProperty('prefix')) {
|
|
storage.prefix = {};
|
|
}
|
|
|
|
if (pos + 1 < parts.length) {
|
|
console.error("cannot define prefix match within url, ignoring route '%s'", route.name);
|
|
}
|
|
else {
|
|
var subprefix = storage.prefix;
|
|
|
|
if (! subprefix.hasOwnProperty('routes')) {
|
|
subprefix.routes = [];
|
|
}
|
|
|
|
subprefix.routes.push({
|
|
route: route,
|
|
priority: route.priority || 0,
|
|
callback: callback
|
|
});
|
|
}
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief intersect methods
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function intersectMethods (a, b) {
|
|
'use strict';
|
|
|
|
var d = {};
|
|
var i;
|
|
var j;
|
|
var results = [];
|
|
|
|
a = a || ALL_METHODS;
|
|
b = b || ALL_METHODS;
|
|
|
|
for (i = 0; i < b.length; i++) {
|
|
d[b[i].toUpperCase()] = true;
|
|
}
|
|
|
|
for (j = 0; j < a.length; j++) {
|
|
var name = a[j].toUpperCase();
|
|
|
|
if (d[name]) {
|
|
results.push(name);
|
|
}
|
|
}
|
|
|
|
return results;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief defines a new route
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function defineRoute (storage, route, url, callback) {
|
|
'use strict';
|
|
|
|
var j;
|
|
|
|
var methods = intersectMethods(url.methods, callback.methods);
|
|
|
|
for (j = 0; j < methods.length; ++j) {
|
|
var method = methods[j];
|
|
|
|
defineRoutePart(storage[method], route, url.urlParts, 0, url.constraint, callback);
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief installs a new route in a tree
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function installRoute (storage, route, urlPrefix, context) {
|
|
'use strict';
|
|
|
|
var url = lookupUrl(urlPrefix, route.url);
|
|
|
|
if (url === null) {
|
|
console.error("route has an unkown url, ignoring '%s'", route.name);
|
|
return;
|
|
}
|
|
|
|
var callback = lookupCallback(route, context);
|
|
|
|
if (callback === null) {
|
|
console.error("route has an unknown callback, ignoring '%s'", route.name);
|
|
return;
|
|
}
|
|
|
|
defineRoute(storage, route, url, callback);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief creates additional routing information
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function analyseRoutes (storage, routes) {
|
|
'use strict';
|
|
|
|
var j;
|
|
var i;
|
|
|
|
var urlPrefix = routes.urlPrefix || "";
|
|
|
|
// use normal root module or app context
|
|
var appContext;
|
|
|
|
if (routes.hasOwnProperty('appContext')) {
|
|
appContext = routes.appContext;
|
|
}
|
|
else {
|
|
appContext = {
|
|
module: module.root
|
|
};
|
|
}
|
|
|
|
// install the routes
|
|
var keys = [ 'routes', 'middleware' ];
|
|
|
|
for (j = 0; j < keys.length; ++j) {
|
|
var key = keys[j];
|
|
|
|
if (routes.hasOwnProperty(key)) {
|
|
var r = routes[key];
|
|
|
|
for (i = 0; i < r.length; ++i) {
|
|
installRoute(storage[key],
|
|
r[i],
|
|
urlPrefix,
|
|
appContext);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief builds a routing tree
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function buildRoutingTree (routes) {
|
|
'use strict';
|
|
|
|
var j;
|
|
|
|
var storage = { routes: {}, middleware: {} };
|
|
|
|
for (j = 0; j < ALL_METHODS.length; ++j) {
|
|
var method = ALL_METHODS[j];
|
|
|
|
storage.routes[method] = {};
|
|
storage.middleware[method] = {};
|
|
}
|
|
|
|
for (j = 0; j < routes.length; ++j) {
|
|
var route = routes[j];
|
|
|
|
try {
|
|
if (route.hasOwnProperty('routes') || route.hasOwnProperty('middleware')) {
|
|
analyseRoutes(storage, route);
|
|
}
|
|
else {
|
|
|
|
// use normal root module or app context
|
|
var appContext;
|
|
|
|
if (route.hasOwnProperty('appContext')) {
|
|
appContext = routes.appContext;
|
|
}
|
|
else {
|
|
appContext = {
|
|
module: module.root
|
|
};
|
|
}
|
|
|
|
installRoute(storage.routes, route, "", appContext);
|
|
}
|
|
}
|
|
catch (err) {
|
|
console.errorLines("cannot install route '%s': %s", route.name, String(err.stack || err));
|
|
}
|
|
}
|
|
|
|
return storage;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief flattens the routing tree for either middleware or normal methods
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function flattenRouting (routes, path, rexpr, urlParameters, depth, prefix) {
|
|
'use strict';
|
|
|
|
var cur;
|
|
var i;
|
|
var k;
|
|
var newUrlParameters;
|
|
var parameter;
|
|
var match;
|
|
|
|
var result = [];
|
|
|
|
// .............................................................................
|
|
// descend down to the next exact matches
|
|
// .............................................................................
|
|
|
|
if (routes.hasOwnProperty('exact')) {
|
|
for (k in routes.exact) {
|
|
if (routes.exact.hasOwnProperty(k)) {
|
|
result = result.concat(flattenRouting(
|
|
routes.exact[k],
|
|
path + "/" + k,
|
|
rexpr + "/" + k.replace(/([\.\+\*\?\^\$\(\)\[\]])/g, "\\$1"),
|
|
_.clone(urlParameters),
|
|
depth + 1,
|
|
false));
|
|
}
|
|
}
|
|
}
|
|
|
|
// .............................................................................
|
|
// descend down the parameter matches
|
|
// .............................................................................
|
|
|
|
if (routes.hasOwnProperty('parameters')) {
|
|
for (i = 0; i < routes.parameters.length; ++i) {
|
|
parameter = routes.parameters[i];
|
|
|
|
if (parameter.hasOwnProperty('constraint')) {
|
|
var constraint = parameter.constraint;
|
|
var pattern = /\/.*\//;
|
|
|
|
if (pattern.test(constraint)) {
|
|
match = "/" + constraint.substr(1, constraint.length - 2);
|
|
}
|
|
else {
|
|
match = "/" + constraint;
|
|
}
|
|
}
|
|
else {
|
|
match = "/[^/]+";
|
|
}
|
|
|
|
if (parameter.optional) {
|
|
cur = rexpr + "(" + match + ")?";
|
|
}
|
|
else {
|
|
cur = rexpr + match;
|
|
}
|
|
|
|
newUrlParameters = _.clone(urlParameters);
|
|
newUrlParameters[parameter.parameter] = depth;
|
|
|
|
result = result.concat(flattenRouting(
|
|
parameter.match,
|
|
path + "/:" + parameter.parameter + (parameter.optional ? '?' : ''),
|
|
cur,
|
|
newUrlParameters,
|
|
depth + 1,
|
|
false));
|
|
}
|
|
}
|
|
|
|
// .............................................................................
|
|
// we have done the depth first descend, now add the current callback(s)
|
|
// .............................................................................
|
|
|
|
if (routes.hasOwnProperty('routes')) {
|
|
var sorted = _.clone(routes.routes.sort(function(a,b) {
|
|
return b.priority - a.priority;
|
|
}));
|
|
|
|
for (i = 0; i < sorted.length; ++i) {
|
|
sorted[i] = {
|
|
path: path,
|
|
regexp: new RegExp("^" + rexpr + "$"),
|
|
prefix: prefix,
|
|
depth: depth,
|
|
urlParameters: urlParameters,
|
|
callback: sorted[i].callback,
|
|
route: sorted[i].route
|
|
};
|
|
}
|
|
|
|
result = result.concat(sorted);
|
|
}
|
|
|
|
// .............................................................................
|
|
// finally append the prefix matches
|
|
// .............................................................................
|
|
|
|
if (routes.hasOwnProperty('prefix')) {
|
|
result = result.concat(flattenRouting(
|
|
routes.prefix,
|
|
path + "/*",
|
|
rexpr + "(/[^/]+)*/?",
|
|
urlParameters._shallowCopy,
|
|
depth + 1,
|
|
true));
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief flattens the routing tree complete
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function flattenRoutingTree (tree) {
|
|
'use strict';
|
|
|
|
var i;
|
|
|
|
var flat = {};
|
|
|
|
for (i = 0; i < ALL_METHODS.length; ++i) {
|
|
var method = ALL_METHODS[i];
|
|
|
|
var a = flattenRouting(tree.routes[method], "", "", {}, 0, false);
|
|
var b = flattenRouting(tree.middleware[method], "", "", {}, 0, false);
|
|
|
|
flat[method] = b.reverse().concat(a);
|
|
}
|
|
|
|
return flat;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief creates the foxx routing actions
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function foxxRouting (req, res, options, next) {
|
|
var mount = options.mount;
|
|
|
|
try {
|
|
var app = foxxManager.lookupApp(mount);
|
|
var devel = app.isDevelopment;
|
|
|
|
if (devel || ! options.hasOwnProperty('routing')) {
|
|
delete options.error;
|
|
|
|
if (devel) {
|
|
foxxManager.rescanFoxx(mount); // TODO can move this to somewhere else?
|
|
app = foxxManager.lookupApp(mount);
|
|
}
|
|
|
|
if (app.isBroken) {
|
|
throw app.error;
|
|
}
|
|
|
|
options.routing = flattenRoutingTree(buildRoutingTree([foxxManager.routes(mount)]));
|
|
}
|
|
}
|
|
catch (err1) {
|
|
options.error = {
|
|
code: exports.HTTP_SERVER_ERROR,
|
|
num: arangodb.ERROR_HTTP_SERVER_ERROR,
|
|
msg: "failed to load foxx mounted at '" + mount + "'",
|
|
info: { exception: String(err1) }
|
|
};
|
|
|
|
if (err1.stack) {
|
|
options.error.info.stacktrace = String(err1.stack).split("\n");
|
|
}
|
|
}
|
|
|
|
if (options.hasOwnProperty('error')) {
|
|
exports.resultError(req,
|
|
res,
|
|
options.error.code,
|
|
options.error.num,
|
|
options.error.msg,
|
|
{},
|
|
options.error.info);
|
|
}
|
|
else {
|
|
try {
|
|
routeRequest(req, res, options.routing);
|
|
}
|
|
catch (err2) {
|
|
resultException(
|
|
req,
|
|
res,
|
|
err2,
|
|
{},
|
|
"failed to execute foxx mounted at '" + mount + "'");
|
|
}
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief flushes cache and reload routing information
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function buildRouting (dbname) {
|
|
'use strict';
|
|
|
|
// compute all routes
|
|
var routes = [];
|
|
var routing = arangodb.db._collection("_routing");
|
|
if (routing !== null) {
|
|
let i = routing.all();
|
|
|
|
while (i.hasNext()) {
|
|
var n = i.next();
|
|
var c = _.clone(n);
|
|
|
|
c.name = '_routing.document("' + c._key + '")';
|
|
|
|
routes.push(c);
|
|
}
|
|
}
|
|
|
|
// allow the collection to unload
|
|
routing = null;
|
|
|
|
// install the foxx routes
|
|
var foxxes = foxxManager.mountPoints();
|
|
|
|
for (let i = 0; i < foxxes.length; ++i) {
|
|
var foxx = foxxes[i];
|
|
|
|
routes.push({
|
|
name: "foxx app mounted at '" + foxx + "'",
|
|
url: { match: foxx + "/*" },
|
|
action: { callback: foxxRouting, options: { mount: foxx } }
|
|
});
|
|
}
|
|
|
|
// build the routing tree
|
|
RoutingTree[dbname] = buildRoutingTree(routes);
|
|
|
|
// compute the flat routes
|
|
RoutingList[dbname] = flattenRoutingTree(RoutingTree[dbname]);
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// --SECTION-- public functions for routing
|
|
// -----------------------------------------------------------------------------
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief finds the next routing
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function nextRouting (state) {
|
|
'use strict';
|
|
|
|
var i;
|
|
var k;
|
|
|
|
for (i = state.position + 1; i < state.routing.length; ++i) {
|
|
var route = state.routing[i];
|
|
|
|
if (route.regexp.test(state.url)) {
|
|
state.position = i;
|
|
state.route = route;
|
|
|
|
if (route.prefix) {
|
|
state.prefix = "/" + state.parts.slice(0, route.depth - 1).join("/");
|
|
state.suffix = state.parts.slice(route.depth - 1, state.parts.length);
|
|
}
|
|
else {
|
|
delete state.prefix;
|
|
delete state.suffix;
|
|
}
|
|
|
|
state.urlParameters = {};
|
|
|
|
if (route.urlParameters) {
|
|
for (k in route.urlParameters) {
|
|
if (route.urlParameters.hasOwnProperty(k)) {
|
|
state.urlParameters[k] = state.parts[route.urlParameters[k]];
|
|
}
|
|
}
|
|
}
|
|
|
|
return state;
|
|
}
|
|
}
|
|
|
|
delete state.route;
|
|
delete state.prefix;
|
|
delete state.suffix;
|
|
state.urlParameters = {};
|
|
|
|
return state;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief finds the first routing
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function firstRouting (type, parts, routes) {
|
|
'use strict';
|
|
|
|
var url = parts;
|
|
|
|
if (typeof url === 'string') {
|
|
parts = url.split("/");
|
|
|
|
if (parts[0] === '') {
|
|
parts.shift();
|
|
}
|
|
}
|
|
else {
|
|
url = "/" + parts.join("/");
|
|
}
|
|
|
|
if (! routes || ! routes.hasOwnProperty(type)) {
|
|
return {
|
|
parts: parts,
|
|
position: -1,
|
|
url: url,
|
|
urlParameters: {}
|
|
};
|
|
}
|
|
|
|
return nextRouting({
|
|
routing: routes[type],
|
|
parts: parts,
|
|
position: -1,
|
|
url: url,
|
|
urlParameters: {}
|
|
});
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief routing function
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function routeRequest (req, res, routes) {
|
|
if (routes === undefined) {
|
|
var dbname = arangodb.db._name();
|
|
|
|
if (undefined === RoutingList[dbname]) {
|
|
buildRouting(dbname);
|
|
}
|
|
|
|
routes = RoutingList[dbname];
|
|
}
|
|
|
|
var action = firstRouting(req.requestType, req.suffix, routes);
|
|
|
|
function execute () {
|
|
if (action.route === undefined) {
|
|
resultNotFound(req, res, arangodb.ERROR_HTTP_NOT_FOUND,
|
|
"unknown path '" + req.url + "'");
|
|
return;
|
|
}
|
|
|
|
if (action.route.path !== undefined) {
|
|
req.path = action.route.path;
|
|
}
|
|
else {
|
|
delete req.path;
|
|
}
|
|
|
|
if (action.prefix !== undefined) {
|
|
req.prefix = action.prefix;
|
|
}
|
|
else {
|
|
delete req.prefix;
|
|
}
|
|
|
|
if (action.suffix !== undefined) {
|
|
req.suffix = action.suffix;
|
|
}
|
|
else {
|
|
delete req.suffix;
|
|
}
|
|
|
|
if (action.urlParameters !== undefined) {
|
|
req.urlParameters = action.urlParameters;
|
|
}
|
|
else {
|
|
req.urlParameters = {};
|
|
}
|
|
|
|
if (req.path) {
|
|
var path = req.path;
|
|
req.path = function (params, suffix) {
|
|
var p = path;
|
|
params = params || req.urlParameters;
|
|
Object.keys(params).forEach(function (key) {
|
|
p = p.replace(new RegExp(':' + key + '\\??', 'g'), params[key]);
|
|
});
|
|
p = p.replace(/:[a-zA-Z]+\?$/, '');
|
|
suffix = suffix || req.suffix;
|
|
if (Array.isArray(suffix)) {
|
|
suffix = suffix.join('/');
|
|
}
|
|
return p.replace(/\*$/, suffix || '');
|
|
};
|
|
}
|
|
|
|
var func = action.route.callback.controller;
|
|
|
|
if (func === null || typeof func !== 'function') {
|
|
func = errorFunction(action.route,
|
|
'Invalid callback definition found for route ' +
|
|
JSON.stringify(action.route) +
|
|
' while searching for callback.controller');
|
|
}
|
|
|
|
try {
|
|
func(req, res, action.route.callback.options, next);
|
|
}
|
|
catch (err) {
|
|
if (! err.hasOwnProperty("route")) {
|
|
err.route = action.route;
|
|
}
|
|
|
|
throw err;
|
|
}
|
|
}
|
|
|
|
function next (restart) {
|
|
if (restart) {
|
|
routeRequest(req, res);
|
|
}
|
|
else {
|
|
action = nextRouting(action);
|
|
execute();
|
|
}
|
|
}
|
|
|
|
execute();
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief flushes the routing cache
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function reloadRouting () {
|
|
'use strict';
|
|
|
|
RoutingTree = {};
|
|
RoutingList = {};
|
|
foxxManager._resetCache();
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief loads all actions
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function startup () {
|
|
if (internal.defineAction === undefined) {
|
|
return;
|
|
}
|
|
|
|
var actionPath = fs.join(internal.startupPath, "actions");
|
|
var actions = fs.listTree(actionPath);
|
|
var i;
|
|
|
|
for (i = 0; i < actions.length; ++i) {
|
|
var file = actions[i];
|
|
var full = fs.join(actionPath, file);
|
|
|
|
if (full !== '' && fs.isFile(full)) {
|
|
if (file.match(/.*\.js$/)) {
|
|
var content = fs.read(full);
|
|
|
|
content = "(function () {\n" + content + "\n}());";
|
|
|
|
internal.executeScript(content, undefined, full);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// --SECTION-- public functions
|
|
// -----------------------------------------------------------------------------
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @startDocuBlock actionsDefineHttp
|
|
///
|
|
/// `actions.defineHttp(options)`
|
|
///
|
|
/// Defines a new action. The *options* are as follows:
|
|
///
|
|
/// `options.url`
|
|
///
|
|
/// The URL, which can be used to access the action. This path might contain
|
|
/// slashes. Note that this action will also be called, if a url is given such that
|
|
/// *options.url* is a prefix of the given url and no longer definition
|
|
/// matches.
|
|
///
|
|
/// `options.prefix`
|
|
///
|
|
/// If *false*, then only use the action for exact matches. The default is
|
|
/// *true*.
|
|
///
|
|
/// `options.callback(request, response)`
|
|
///
|
|
/// The request argument contains a description of the request. A request
|
|
/// parameter *foo* is accessible as *request.parametrs.foo*. A request
|
|
/// header *bar* is accessible as *request.headers.bar*. Assume that
|
|
/// the action is defined for the url */foo/bar* and the request url is
|
|
/// */foo/bar/hugo/egon*. Then the suffix parts *[ "hugo", "egon" ]*
|
|
/// are availible in *request.suffix*.
|
|
///
|
|
/// The callback must define fill the *response*.
|
|
///
|
|
/// * *response.responseCode*: the response code
|
|
/// * *response.contentType*: the content type of the response
|
|
/// * *response.body*: the body of the response
|
|
///
|
|
/// You can use the functions *ResultOk* and *ResultError* to easily
|
|
/// generate a response.
|
|
/// @endDocuBlock
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function defineHttp (options) {
|
|
'use strict';
|
|
|
|
var url = options.url;
|
|
var callback = options.callback;
|
|
|
|
if (typeof callback !== "function") {
|
|
console.error("callback for '%s' must be a function, got '%s'", url, typeof callback);
|
|
return;
|
|
}
|
|
|
|
var parameter = {
|
|
prefix: true,
|
|
allowUseDatabase: false
|
|
};
|
|
|
|
if (options.hasOwnProperty("prefix")) {
|
|
parameter.prefix = options.prefix;
|
|
}
|
|
|
|
if (options.hasOwnProperty("allowUseDatabase")) {
|
|
parameter.allowUseDatabase = options.allowUseDatabase;
|
|
}
|
|
|
|
try {
|
|
internal.defineAction(url, callback, parameter);
|
|
} catch (e) {
|
|
console.errorLines("action '%s' encountered error:\n%s", url, e.stack || String(e));
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief add a cookie
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function addCookie (res, name, value, lifeTime, path, domain, secure, httpOnly) {
|
|
'use strict';
|
|
|
|
if (name === undefined) {
|
|
return;
|
|
}
|
|
if (value === undefined) {
|
|
return;
|
|
}
|
|
|
|
var cookie = {
|
|
'name' : name,
|
|
'value' : value
|
|
};
|
|
|
|
if (lifeTime !== undefined && lifeTime !== null) {
|
|
cookie.lifeTime = parseInt(lifeTime, 10);
|
|
}
|
|
if (path !== undefined && path !== null) {
|
|
cookie.path = path;
|
|
}
|
|
if (domain !== undefined && domain !== null) {
|
|
cookie.domain = domain;
|
|
}
|
|
if (secure !== undefined && secure !== null) {
|
|
cookie.secure = (secure) ? true : false;
|
|
}
|
|
if (httpOnly !== undefined && httpOnly !== null) {
|
|
cookie.httpOnly = (httpOnly) ? true : false;
|
|
}
|
|
|
|
if (res.cookies === undefined || res.cookies === null) {
|
|
res.cookies = [];
|
|
}
|
|
|
|
res.cookies.push(cookie);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @startDocuBlock actionsGetErrorMessage
|
|
///
|
|
/// `actions.getErrorMessage(code)`
|
|
///
|
|
/// Returns the error message for an error code.
|
|
/// @endDocuBlock
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function getErrorMessage (code) {
|
|
'use strict';
|
|
|
|
var key;
|
|
|
|
for (key in internal.errors) {
|
|
if (internal.errors.hasOwnProperty(key)) {
|
|
if (internal.errors[key].code === code) {
|
|
return internal.errors[key].message;
|
|
}
|
|
}
|
|
}
|
|
|
|
return "";
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief extracts the body as json
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function getJsonBody (req, res, code) {
|
|
'use strict';
|
|
|
|
var body;
|
|
var err;
|
|
|
|
try {
|
|
body = JSON.parse(req.requestBody || "{}") || {};
|
|
}
|
|
catch (err1) {
|
|
resultBad(req, res, arangodb.ERROR_HTTP_CORRUPTED_JSON, err1);
|
|
return undefined;
|
|
}
|
|
|
|
if (! body || ! (body instanceof Object)) {
|
|
if (code === undefined) {
|
|
code = arangodb.ERROR_HTTP_CORRUPTED_JSON;
|
|
}
|
|
|
|
err = new internal.ArangoError();
|
|
err.errorNum = code;
|
|
err.errorMessage = "expecting a valid JSON object as body";
|
|
|
|
resultBad(req, res, code, err);
|
|
return undefined;
|
|
}
|
|
|
|
return body;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @startDocuBlock actionsResultError
|
|
///
|
|
/// *actions.resultError(*req*, *res*, *code*, *errorNum*,
|
|
/// *errorMessage*, *headers*, *keyvals)*
|
|
///
|
|
/// The function generates an error response. The response body is an array
|
|
/// with an attribute *errorMessage* containing the error message
|
|
/// *errorMessage*, *error* containing *true*, *code* containing
|
|
/// *code*, *errorNum* containing *errorNum*, and *errorMessage*
|
|
/// containing the error message *errorMessage*. *keyvals* are mixed
|
|
/// into the result.
|
|
/// @endDocuBlock
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function resultError (req, res, httpReturnCode, errorNum, errorMessage, headers, keyvals) {
|
|
'use strict';
|
|
|
|
var i;
|
|
var msg;
|
|
|
|
res.responseCode = httpReturnCode;
|
|
res.contentType = "application/json; charset=utf-8";
|
|
|
|
if (typeof errorNum === "string") {
|
|
keyvals = headers;
|
|
headers = errorMessage;
|
|
errorMessage = errorNum;
|
|
errorNum = httpReturnCode;
|
|
}
|
|
|
|
if (errorMessage === undefined || errorMessage === null) {
|
|
msg = getErrorMessage(errorNum);
|
|
}
|
|
else {
|
|
msg = String(errorMessage);
|
|
}
|
|
|
|
var result = {};
|
|
|
|
if (keyvals !== undefined) {
|
|
for (i in keyvals) {
|
|
if (keyvals.hasOwnProperty(i)) {
|
|
result[i] = keyvals[i];
|
|
}
|
|
}
|
|
}
|
|
|
|
result.error = true;
|
|
result.code = httpReturnCode;
|
|
result.errorNum = errorNum;
|
|
result.errorMessage = msg;
|
|
|
|
res.body = JSON.stringify(result);
|
|
|
|
if (headers !== undefined && headers !== null) {
|
|
res.headers = headers;
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief function that's returned for actions that produce an error
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function errorFunction (route, message) {
|
|
'use strict';
|
|
|
|
message += "\nThis error was triggered by the following route " + JSON.stringify(route);
|
|
|
|
console.error("%s", message);
|
|
|
|
return function (req, res, options, next) {
|
|
res.responseCode = exports.HTTP_SERVER_ERROR;
|
|
res.contentType = "text/plain";
|
|
res.body = message;
|
|
};
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief convenience function for a bad parameter
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function badParameter (req, res, name) {
|
|
'use strict';
|
|
|
|
resultError(req, res, exports.HTTP_BAD, exports.HTTP_BAD, util.format(
|
|
"invalid value for parameter '%s'", name
|
|
));
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @startDocuBlock actionsResultOk
|
|
///
|
|
/// `actions.resultOk(req, res, code, result, headers)`
|
|
///
|
|
/// The function defines a response. *code* is the status code to
|
|
/// return. *result* is the result object, which will be returned as JSON
|
|
/// object in the body. *headers* is an array of headers to returned.
|
|
/// The function adds the attribute *error* with value *false*
|
|
/// and *code* with value *code* to the *result*.
|
|
/// @endDocuBlock
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function resultOk (req, res, httpReturnCode, result, headers) {
|
|
'use strict';
|
|
|
|
res.responseCode = httpReturnCode;
|
|
res.contentType = "application/json; charset=utf-8";
|
|
|
|
// add some default attributes to result
|
|
if (result === undefined) {
|
|
result = {};
|
|
}
|
|
|
|
// check the type of the result.
|
|
if (typeof result !== "string" &&
|
|
typeof result !== "number" &&
|
|
typeof result !== "boolean") {
|
|
// only modify result properties if none of the above types
|
|
// otherwise the strict mode will throw
|
|
result.error = false;
|
|
result.code = httpReturnCode;
|
|
}
|
|
|
|
res.body = JSON.stringify(result);
|
|
|
|
if (headers !== undefined) {
|
|
res.headers = headers;
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @startDocuBlock actionsResultBad
|
|
///
|
|
/// `actions.resultBad(req, res, error-code, msg, headers)`
|
|
///
|
|
/// The function generates an error response.
|
|
/// @endDocuBlock
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function resultBad (req, res, code, msg, headers) {
|
|
'use strict';
|
|
|
|
resultError(req, res, exports.HTTP_BAD, code, msg, headers);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @startDocuBlock actionsResultNotFound
|
|
///
|
|
/// `actions.resultNotFound(req, res, code, msg, headers)`
|
|
///
|
|
/// The function generates an error response.
|
|
/// @endDocuBlock
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function resultNotFound (req, res, code, msg, headers) {
|
|
'use strict';
|
|
|
|
resultError(req, res, exports.HTTP_NOT_FOUND, code, msg, headers);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @startDocuBlock actionsResultNotImplemented
|
|
///
|
|
/// `actions.resultNotImplemented(req, res, msg, headers)`
|
|
///
|
|
/// The function generates an error response.
|
|
/// @endDocuBlock
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function resultNotImplemented (req, res, msg, headers) {
|
|
'use strict';
|
|
|
|
resultError(req,
|
|
res,
|
|
exports.HTTP_NOT_IMPLEMENTED,
|
|
arangodb.ERROR_NOT_IMPLEMENTED,
|
|
msg,
|
|
headers);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @startDocuBlock actionsResultUnsupported
|
|
///
|
|
/// `actions.resultUnsupported(req, res, headers)`
|
|
///
|
|
/// The function generates an error response.
|
|
/// @endDocuBlock
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function resultUnsupported (req, res, headers) {
|
|
'use strict';
|
|
|
|
resultError(req, res,
|
|
exports.HTTP_METHOD_NOT_ALLOWED,
|
|
arangodb.ERROR_HTTP_METHOD_NOT_ALLOWED,
|
|
"Unsupported method",
|
|
headers);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief internal function for handling redirects
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function handleRedirect (req, res, options, headers) {
|
|
var destination;
|
|
var url = '';
|
|
|
|
destination = options.destination;
|
|
|
|
if (destination.substr(0,5) !== "http:" && destination.substr(0,6) !== "https:") {
|
|
|
|
if (options.relative) {
|
|
var u = req.url;
|
|
|
|
if (0 < u.length && u[u.length - 1] === '/') {
|
|
url += "/_db/" + encodeURIComponent(req.database) + u + destination;
|
|
}
|
|
else {
|
|
url += "/_db/" + encodeURIComponent(req.database) + u + "/" + destination;
|
|
}
|
|
}
|
|
else {
|
|
url += destination;
|
|
}
|
|
}
|
|
else {
|
|
url = destination;
|
|
}
|
|
|
|
res.contentType = "text/html";
|
|
res.body = "<html><head><title>Moved</title>"
|
|
+ "</head><body><h1>Moved</h1><p>This page has moved to <a href=\""
|
|
+ url
|
|
+ "\">"
|
|
+ url
|
|
+ "</a>.</p></body></html>";
|
|
|
|
if (headers !== undefined) {
|
|
res.headers = headers._shallowCopy;
|
|
}
|
|
else {
|
|
res.headers = {};
|
|
}
|
|
|
|
res.headers.location = url;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @startDocuBlock actionsResultPermanentRedirect
|
|
///
|
|
/// `actions.resultPermanentRedirect(req, res, options, headers)`
|
|
///
|
|
/// The function generates a redirect response.
|
|
/// @endDocuBlock
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function resultPermanentRedirect (req, res, options, headers) {
|
|
'use strict';
|
|
|
|
res.responseCode = exports.HTTP_MOVED_PERMANENTLY;
|
|
|
|
handleRedirect(req, res, options, headers);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @startDocuBlock actionsResultTemporaryRedirect
|
|
///
|
|
/// `actions.resultTemporaryRedirect(req, res, options, headers)`
|
|
///
|
|
/// The function generates a redirect response.
|
|
/// @endDocuBlock
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function resultTemporaryRedirect (req, res, options, headers) {
|
|
'use strict';
|
|
|
|
res.responseCode = exports.HTTP_TEMPORARY_REDIRECT;
|
|
|
|
handleRedirect(req, res, options, headers);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief function describing a cursor
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function resultCursor (req, res, cursor, code, options) {
|
|
'use strict';
|
|
|
|
var rows;
|
|
var count;
|
|
var hasCount;
|
|
var hasNext;
|
|
var cursorId;
|
|
var extra;
|
|
|
|
if (Array.isArray(cursor)) {
|
|
// performance optimisation: if the value passed in is an array, we can
|
|
// use it as it is
|
|
hasCount = ((options && options.countRequested) ? true : false);
|
|
count = cursor.length;
|
|
rows = cursor;
|
|
hasNext = false;
|
|
cursorId = null;
|
|
}
|
|
else if (typeof cursor === 'object' && cursor.hasOwnProperty('json')) {
|
|
// cursor is a regular JS object (performance optimisation)
|
|
hasCount = ((options && options.countRequested) ? true : false);
|
|
count = cursor.json.length;
|
|
rows = cursor.json;
|
|
extra = { };
|
|
[ "stats", "warnings", "profile" ].forEach(function(d) {
|
|
if (cursor.hasOwnProperty(d)) {
|
|
extra[d] = cursor[d];
|
|
}
|
|
});
|
|
hasNext = false;
|
|
cursorId = null;
|
|
}
|
|
else if (typeof cursor === 'string' && cursor.match(/^\d+$/)) {
|
|
// cursor is assumed to be a cursor id
|
|
var tmp = JSON_CURSOR(cursor);
|
|
|
|
hasCount = true;
|
|
count = tmp.count;
|
|
rows = tmp.result;
|
|
hasNext = tmp.hasOwnProperty('id');
|
|
extra = undefined;
|
|
|
|
if (hasNext) {
|
|
cursorId = tmp.id;
|
|
}
|
|
else {
|
|
cursorId = null;
|
|
}
|
|
}
|
|
|
|
var result = {
|
|
result : rows,
|
|
hasMore : hasNext
|
|
};
|
|
|
|
if (cursorId) {
|
|
result.id = cursorId;
|
|
}
|
|
|
|
if (hasCount) {
|
|
result.count = count;
|
|
}
|
|
|
|
if (extra !== undefined && Object.keys(extra).length > 0) {
|
|
result.extra = extra;
|
|
}
|
|
|
|
if (code === undefined) {
|
|
code = exports.HTTP_CREATED;
|
|
}
|
|
|
|
resultOk(req, res, code, result);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @startDocuBlock actionsCollectionNotFound
|
|
///
|
|
/// `actions.collectionNotFound(req, res, collection, headers)`
|
|
///
|
|
/// The function generates an error response.
|
|
/// @endDocuBlock
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function collectionNotFound (req, res, collection, headers) {
|
|
'use strict';
|
|
|
|
if (collection === undefined) {
|
|
resultError(req, res,
|
|
exports.HTTP_BAD, arangodb.ERROR_HTTP_BAD_PARAMETER,
|
|
"expecting a collection name or identifier",
|
|
headers);
|
|
}
|
|
else {
|
|
resultError(req, res,
|
|
exports.HTTP_NOT_FOUND, arangodb.ERROR_ARANGO_COLLECTION_NOT_FOUND,
|
|
"unknown collection '" + collection + "'", headers);
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @startDocuBlock actionsIndexNotFound
|
|
///
|
|
/// `actions.indexNotFound(req, res, collection, index, headers)`
|
|
///
|
|
/// The function generates an error response.
|
|
/// @endDocuBlock
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function indexNotFound (req, res, collection, index, headers) {
|
|
'use strict';
|
|
|
|
if (collection === undefined) {
|
|
resultError(req, res,
|
|
exports.HTTP_BAD, arangodb.ERROR_HTTP_BAD_PARAMETER,
|
|
"expecting a collection name or identifier",
|
|
headers);
|
|
}
|
|
else if (index === undefined) {
|
|
resultError(req, res,
|
|
exports.HTTP_BAD, arangodb.ERROR_HTTP_BAD_PARAMETER,
|
|
"expecting an index identifier",
|
|
headers);
|
|
}
|
|
else {
|
|
resultError(req, res,
|
|
exports.HTTP_NOT_FOUND, arangodb.ERROR_ARANGO_INDEX_NOT_FOUND,
|
|
"unknown index '" + index + "'", headers);
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @startDocuBlock actionsResultException
|
|
///
|
|
/// `actions.resultException(req, res, err, headers, verbose)`
|
|
///
|
|
/// The function generates an error response. If @FA{verbose} is set to
|
|
/// *true* or not specified (the default), then the error stack trace will
|
|
/// be included in the error message if available. If @FA{verbose} is a string
|
|
/// it will be prepended before the error message and the stacktrace will also
|
|
/// be included.
|
|
/// @endDocuBlock
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function resultException (req, res, err, headers, verbose) {
|
|
'use strict';
|
|
|
|
var code;
|
|
var msg = err.message;
|
|
var num;
|
|
|
|
var info = {};
|
|
|
|
if (verbose !== false) {
|
|
info.exception = String(err);
|
|
if (err.stack) {
|
|
err.stack = err.stack.replace(/\n+$/, '');
|
|
info.stacktrace = err.stack.split('\n');
|
|
}
|
|
if (typeof verbose === 'string') {
|
|
msg = verbose;
|
|
}
|
|
}
|
|
|
|
if (err instanceof internal.ArangoError) {
|
|
num = err.errorNum;
|
|
code = exports.HTTP_BAD;
|
|
|
|
if (num === 0) {
|
|
num = arangodb.ERROR_INTERNAL;
|
|
}
|
|
|
|
if (err.errorMessage !== "") {
|
|
if (verbose !== false) {
|
|
info.message = err.errorMessage;
|
|
}
|
|
if (typeof verbose !== 'string') {
|
|
msg = err.errorMessage;
|
|
}
|
|
}
|
|
|
|
switch (num) {
|
|
case arangodb.ERROR_INTERNAL:
|
|
case arangodb.ERROR_OUT_OF_MEMORY:
|
|
case arangodb.ERROR_GRAPH_TOO_MANY_ITERATIONS:
|
|
code = exports.HTTP_SERVER_ERROR;
|
|
break;
|
|
|
|
case arangodb.ERROR_FORBIDDEN:
|
|
case arangodb.ERROR_ARANGO_USE_SYSTEM_DATABASE:
|
|
code = exports.HTTP_FORBIDDEN;
|
|
break;
|
|
|
|
case arangodb.ERROR_ARANGO_COLLECTION_NOT_FOUND:
|
|
case arangodb.ERROR_ARANGO_DOCUMENT_NOT_FOUND:
|
|
case arangodb.ERROR_ARANGO_DATABASE_NOT_FOUND:
|
|
case arangodb.ERROR_ARANGO_ENDPOINT_NOT_FOUND:
|
|
case arangodb.ERROR_ARANGO_NO_INDEX:
|
|
case arangodb.ERROR_ARANGO_INDEX_NOT_FOUND:
|
|
case arangodb.ERROR_CURSOR_NOT_FOUND:
|
|
case arangodb.ERROR_USER_NOT_FOUND:
|
|
case arangodb.ERROR_TASK_NOT_FOUND:
|
|
case arangodb.ERROR_QUERY_NOT_FOUND:
|
|
code = exports.HTTP_NOT_FOUND;
|
|
break;
|
|
|
|
case arangodb.ERROR_REQUEST_CANCELED:
|
|
code = exports.HTTP_REQUEST_TIMEOUT;
|
|
break;
|
|
|
|
case arangodb.ERROR_ARANGO_DUPLICATE_NAME:
|
|
case arangodb.ERROR_ARANGO_DUPLICATE_IDENTIFIER:
|
|
code = exports.HTTP_CONFLICT;
|
|
break;
|
|
|
|
case arangodb.ERROR_CLUSTER_UNSUPPORTED:
|
|
code = exports.HTTP_NOT_IMPLEMENTED;
|
|
break;
|
|
}
|
|
}
|
|
else if (err instanceof TypeError) {
|
|
num = arangodb.ERROR_TYPE_ERROR;
|
|
code = exports.HTTP_BAD;
|
|
}
|
|
else if (err.statusCode) {
|
|
num = err.statusCode;
|
|
code = err.statusCode;
|
|
}
|
|
else {
|
|
num = arangodb.ERROR_HTTP_SERVER_ERROR;
|
|
code = exports.HTTP_SERVER_ERROR;
|
|
}
|
|
|
|
resultError(req, res, code, num, msg, headers, info);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief creates a simple post callback
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function easyPostCallback (opts) {
|
|
'use strict';
|
|
|
|
return function (req, res) {
|
|
var body = getJsonBody(req, res);
|
|
|
|
if (opts.body === true && body === undefined) {
|
|
return;
|
|
}
|
|
|
|
try {
|
|
var result = opts.callback(body);
|
|
resultOk(req, res, exports.HTTP_OK, result);
|
|
}
|
|
catch (err) {
|
|
resultException(req, res, err, undefined, false);
|
|
}
|
|
};
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief echos a request
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function echoRequest (req, res, options, next) {
|
|
'use strict';
|
|
|
|
var result = { request : req, options : options };
|
|
|
|
res.responseCode = exports.HTTP_OK;
|
|
res.contentType = "application/json; charset=utf-8";
|
|
res.body = JSON.stringify(result);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief logs a request
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function logRequest (req, res, options, next) {
|
|
'use strict';
|
|
|
|
var log;
|
|
var level;
|
|
var token;
|
|
|
|
if (options.hasOwnProperty('level')) {
|
|
level = options.level;
|
|
|
|
if (level === "debug") {
|
|
log = console.debug;
|
|
}
|
|
else if (level === "error") {
|
|
log = console.error;
|
|
}
|
|
else if (level === "info") {
|
|
log = console.info;
|
|
}
|
|
else if (level === "log") {
|
|
log = console.log;
|
|
}
|
|
else if (level === "warn" || level === "warning") {
|
|
log = console.warn;
|
|
}
|
|
else {
|
|
log = console.log;
|
|
}
|
|
}
|
|
else {
|
|
log = console.log;
|
|
}
|
|
|
|
if (options.hasOwnProperty('token')) {
|
|
token = options.token;
|
|
}
|
|
else {
|
|
token = "@(#" + internal.time() + ") ";
|
|
}
|
|
|
|
log("received request %s: %s", token, JSON.stringify(req));
|
|
next();
|
|
log("produced response %s: %s", token, JSON.stringify(res));
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief redirects a request
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function redirectRequest (req, res, options, next) {
|
|
'use strict';
|
|
|
|
if (options.permanently) {
|
|
resultPermanentRedirect(req, res, options);
|
|
}
|
|
else {
|
|
resultTemporaryRedirect(req, res, options);
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief rewrites a request
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function rewriteRequest (req, res, options, next) {
|
|
'use strict';
|
|
|
|
var i = 0;
|
|
var suffix = options.destination.split("/");
|
|
|
|
for (i = 0; i < suffix.length; ++i) {
|
|
if (suffix[i] !== "") {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (0 < i) {
|
|
suffix = suffix.splice(i);
|
|
}
|
|
|
|
req.suffix = suffix;
|
|
|
|
next(true);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief redirects a request
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function pathHandler (req, res, options, next) {
|
|
'use strict';
|
|
|
|
var filename, encodedFilename;
|
|
filename = fs.join(options.path, fs.join.apply(fs.join, req.suffix));
|
|
|
|
if (options.hasOwnProperty('root')) {
|
|
var root = options.root;
|
|
|
|
filename = fs.join(root, filename);
|
|
encodedFilename = filename;
|
|
}
|
|
if (fs.exists(filename)) {
|
|
res.responseCode = exports.HTTP_OK;
|
|
res.contentType = arangodb.guessContentType(filename);
|
|
if (options.hasOwnProperty('gzip')) {
|
|
if (options.gzip === true) {
|
|
|
|
//check if client is capable of gzip encoding
|
|
if (req.hasOwnProperty('headers')) {
|
|
if (req.headers.hasOwnProperty('accept-encoding')) {
|
|
var encoding = req.headers['accept-encoding'];
|
|
if (encoding.indexOf('gzip') > -1) {
|
|
|
|
//check if gzip file is available
|
|
encodedFilename = encodedFilename + '.gz';
|
|
if (fs.exists(encodedFilename)) {
|
|
if (!res.hasOwnProperty('headers')) {
|
|
res.headers = {};
|
|
}
|
|
res.headers['Content-Encoding'] = "gzip";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
res.bodyFromFile = encodedFilename;
|
|
}
|
|
else {
|
|
res.responseCode = exports.HTTP_NOT_FOUND;
|
|
res.contentType = "text/plain";
|
|
res.body = "cannot find file '" + filename + "'";
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief helper function to stringify a request
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function stringifyRequest(req) {
|
|
return req.requestType + " " + req.absoluteUrl();
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// --SECTION-- MODULE EXPORTS
|
|
// -----------------------------------------------------------------------------
|
|
|
|
// load all actions from the actions directory
|
|
exports.startup = startup;
|
|
|
|
// only for debugging
|
|
exports.buildRouting = buildRouting;
|
|
exports.buildRoutingTree = buildRoutingTree;
|
|
exports.flattenRoutingTree = flattenRoutingTree;
|
|
exports.routingTree = function() { return RoutingTree; };
|
|
exports.routingList = function() { return RoutingList; };
|
|
|
|
// public functions
|
|
exports.routeRequest = routeRequest;
|
|
exports.defineHttp = defineHttp;
|
|
exports.getErrorMessage = getErrorMessage;
|
|
exports.getJsonBody = getJsonBody;
|
|
exports.errorFunction = errorFunction;
|
|
exports.reloadRouting = reloadRouting;
|
|
exports.firstRouting = firstRouting;
|
|
exports.nextRouting = nextRouting;
|
|
exports.addCookie = addCookie;
|
|
exports.stringifyRequest = stringifyRequest;
|
|
|
|
// standard HTTP responses
|
|
exports.badParameter = badParameter;
|
|
exports.resultBad = resultBad;
|
|
exports.resultError = resultError;
|
|
exports.resultNotFound = resultNotFound;
|
|
exports.resultNotImplemented = resultNotImplemented;
|
|
exports.resultOk = resultOk;
|
|
exports.resultPermanentRedirect = resultPermanentRedirect;
|
|
exports.resultTemporaryRedirect = resultTemporaryRedirect;
|
|
exports.resultUnsupported = resultUnsupported;
|
|
|
|
// ArangoDB specific responses
|
|
exports.resultCursor = resultCursor;
|
|
exports.collectionNotFound = collectionNotFound;
|
|
exports.indexNotFound = indexNotFound;
|
|
exports.resultException = resultException;
|
|
|
|
// standard actions
|
|
exports.easyPostCallback = easyPostCallback;
|
|
exports.echoRequest = echoRequest;
|
|
exports.logRequest = logRequest;
|
|
exports.redirectRequest = redirectRequest;
|
|
exports.rewriteRequest = rewriteRequest;
|
|
exports.pathHandler = pathHandler;
|
|
|
|
// some useful constants
|
|
exports.DELETE = "DELETE";
|
|
exports.GET = "GET";
|
|
exports.HEAD = "HEAD";
|
|
exports.OPTIONS = "OPTIONS";
|
|
exports.POST = "POST";
|
|
exports.PUT = "PUT";
|
|
exports.PATCH = "PATCH";
|
|
|
|
exports.ALL_METHODS = ALL_METHODS;
|
|
|
|
// HTTP 2xx
|
|
exports.HTTP_OK = 200;
|
|
exports.HTTP_CREATED = 201;
|
|
exports.HTTP_ACCEPTED = 202;
|
|
exports.HTTP_PARTIAL = 203;
|
|
exports.HTTP_NO_CONTENT = 204;
|
|
|
|
// HTTP 3xx
|
|
exports.HTTP_MOVED_PERMANENTLY = 301;
|
|
exports.HTTP_FOUND = 302;
|
|
exports.HTTP_SEE_OTHER = 303;
|
|
exports.HTTP_NOT_MODIFIED = 304;
|
|
exports.HTTP_TEMPORARY_REDIRECT = 307;
|
|
|
|
// HTTP 4xx
|
|
exports.HTTP_BAD = 400;
|
|
exports.HTTP_UNAUTHORIZED = 401;
|
|
exports.HTTP_PAYMENT = 402;
|
|
exports.HTTP_FORBIDDEN = 403;
|
|
exports.HTTP_NOT_FOUND = 404;
|
|
exports.HTTP_METHOD_NOT_ALLOWED = 405;
|
|
exports.HTTP_REQUEST_TIMEOUT = 408;
|
|
exports.HTTP_CONFLICT = 409;
|
|
exports.HTTP_PRECONDITION_FAILED = 412;
|
|
exports.HTTP_ENTITY_TOO_LARGE = 413;
|
|
exports.HTTP_I_AM_A_TEAPOT = 418;
|
|
exports.HTTP_UNPROCESSABLE_ENTIT = 422;
|
|
exports.HTTP_HEADER_TOO_LARGE = 431;
|
|
|
|
// HTTP 5xx
|
|
exports.HTTP_SERVER_ERROR = 500;
|
|
exports.HTTP_NOT_IMPLEMENTED = 501;
|
|
exports.HTTP_BAD_GATEWAY = 502;
|
|
exports.HTTP_SERVICE_UNAVAILABLE = 503;
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// --SECTION-- END-OF-FILE
|
|
// -----------------------------------------------------------------------------
|
|
|
|
// Local Variables:
|
|
// mode: outline-minor
|
|
// outline-regexp: "/// @brief\\|/// @addtogroup\\|// --SECTION--\\|/// @page\\|/// @startDocuBlock\\|/// @\\}"
|
|
// End:
|