SNode.C
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ApplicationDispatcher.cpp
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1/*
2 * SNode.C - A Slim Toolkit for Network Communication
3 * Copyright (C) Volker Christian <me@vchrist.at>
4 * 2020, 2021, 2022, 2023, 2024, 2025
5 *
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU Lesser General Public License as published
8 * by the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20/*
21 * MIT License
22 *
23 * Permission is hereby granted, free of charge, to any person obtaining a copy
24 * of this software and associated documentation files (the "Software"), to deal
25 * in the Software without restriction, including without limitation the rights
26 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
27 * copies of the Software, and to permit persons to whom the Software is
28 * furnished to do so, subject to the following conditions:
29 *
30 * The above copyright notice and this permission notice shall be included in
31 * all copies or substantial portions of the Software.
32 *
33 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
34 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
35 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
36 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
37 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
38 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
39 * THE SOFTWARE.
40 */
41
42#include "express/dispatcher/ApplicationDispatcher.h"
43
44#include "core/socket/stream/SocketConnection.h"
45#include "express/Controller.h"
46#include "express/Request.h"
47#include "express/Response.h"
48#include "express/Route.h"
49#include "express/dispatcher/regex_utils.h"
50#include "web/http/server/SocketContext.h"
51
52#ifndef DOXYGEN_SHOULD_SKIP_THIS
53
54#include "log/Logger.h"
55
56#include <list>
57
58#endif /* DOXYGEN_SHOULD_SKIP_THIS */
59
60namespace express::dispatcher {
61
63 const std::function<void(const std::shared_ptr<Request>&, const std::shared_ptr<Response>&)>& lambda)
64 : lambda(lambda) {
65 }
66
67 bool ApplicationDispatcher::dispatch(express::Controller& controller,
68 const std::string& parentMountPath,
69 const express::MountPoint& mountPoint) {
70 bool requestMatched = false;
71
72 if ((controller.getFlags() & Controller::NEXT) == 0) {
73 const std::string absoluteMountPath = parentMountPath + mountPoint.relativeMountPath;
74
75 const std::string requestMethod = controller.getRequest()->method;
76 const std::string requestUrl = controller.getRequest()->url;
77 const std::string requestPath = controller.getRequest()->path;
78
79 // clang-format off
80 requestMatched =
81 (
82 (
83 (
84 mountPoint.method == requestMethod
85 ) || (
86 mountPoint.method == "all"
87 )
88 ) && (
89 (
90 requestUrl == absoluteMountPath
91 ) || (
92 (
93 !controller.getStrictRouting()
94 ) && (
95 requestUrl.starts_with(absoluteMountPath)
96 )
97 ) || (
98 checkForUrlMatch(absoluteMountPath, requestUrl)
99 )
100 )
101 ) || (
102 (
103 mountPoint.method == "use"
104 ) && (
105 (
106 requestUrl.starts_with(absoluteMountPath)
107 )
108 )
109 );
110 // clang-format on
111
113 << " HTTP Express: application -> " << (requestMatched ? "MATCH" : "NO MATCH");
114 LOG(TRACE) << " RequestMethod: " << controller.getRequest()->method;
115 LOG(TRACE) << " RequestUrl: " << controller.getRequest()->url;
116 LOG(TRACE) << " RequestPath: " << controller.getRequest()->path;
117 LOG(TRACE) << " AbsoluteMountPath: " << absoluteMountPath;
118 LOG(TRACE) << " StrictRouting: " << controller.getStrictRouting();
119 LOG(TRACE) << " StrictRouting: " << controller.getStrictRouting();
120
121 if (requestMatched) {
122 if (hasResult(absoluteMountPath)) {
123 setParams(absoluteMountPath, *controller.getRequest());
124 }
125
126 lambda(controller.getRequest(), controller.getResponse());
127 }
128 }
129
130 return requestMatched;
131 }
132
133 std::list<std::string>
134 ApplicationDispatcher::getRoutes(const std::string& parentMountPath, const MountPoint& mountPoint, bool strictRouting) const {
135 std::list<std::string> routes{"A " + parentMountPath + mountPoint.relativeMountPath + (!strictRouting ? "*" : "")};
136 routes.push_back(" " + mountPoint.method + " " + mountPoint.relativeMountPath);
137
138 if (nextRoute) {
139 routes.splice(routes.end(), nextRoute->getRoute(parentMountPath, strictRouting));
140 }
141
142 return routes;
143 }
144
145} // namespace express::dispatcher
const std::string & getConnectionName() const
SocketConnection * getSocketConnection() const
const std::shared_ptr< Request > & getRequest()
bool getStrictRouting() const
const std::shared_ptr< Response > & getResponse()
std::shared_ptr< Route > nextRoute
Definition Dispatcher.h:78
std::string url
Definition Request.h:96
std::string method
Definition Request.h:95
std::string path
Definition Request.h:77
web::http::server::SocketContext * getSocketContext() const
Definition Response.cpp:64
std::list< std::string > getRoute(const std::string &parentMountPath, bool strictRouting) const
Definition Route.cpp:114
const std::function< void(const std::shared_ptr< Request > &, const std::shared_ptr< Response > &)> lambda
bool dispatch(express::Controller &controller, const std::string &parentMountPath, const express::MountPoint &mountPoint) override
std::list< std::string > getRoutes(const std::string &parentMountPath, const MountPoint &mountPoint, bool strictRouting) const override
ApplicationDispatcher(const std::function< void(const std::shared_ptr< Request > &, const std::shared_ptr< Response > &)> &lambda)
bool checkForUrlMatch(const std::string &cpath, const std::string &reqpath)
void setParams(const std::string &cpath, Request &req)
bool hasResult(const std::string &cpath)
std::string method
Definition MountPoint.h:56
std::string relativeMountPath
Definition MountPoint.h:57