express::dispatcher::ApplicationDispatcher Class Reference

#include <ApplicationDispatcher.h>

Inheritance diagram for express::dispatcher::ApplicationDispatcher:

Collaboration diagram for express::dispatcher::ApplicationDispatcher:

Public Member Functions
	ApplicationDispatcher (const std::function< void(const std::shared_ptr< Request > &, const std::shared_ptr< Response > &)> &lambda)
Public Member Functions inherited from express::Dispatcher
	Dispatcher (const Dispatcher &)=delete
Dispatcher &	operator= (const Dispatcher &)=delete
	Dispatcher ()=default
virtual	~Dispatcher ()
bool	dispatchNext (Controller &controller, const std::string &parentMountPath)

Private Member Functions
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

Private Attributes
const std::function< void(const std::shared_ptr< Request > &, const std::shared_ptr< Response > &)>	lambda
std::regex	regex
std::vector< std::string >	names

Additional Inherited Members
Protected Attributes inherited from express::Dispatcher
std::shared_ptr< Route >	nextRoute = nullptr

Detailed Description

Definition at line 64 of file ApplicationDispatcher.h.

Constructor & Destructor Documentation

ApplicationDispatcher()

express::dispatcher::ApplicationDispatcher::ApplicationDispatcher ( const std::function< void(const std::shared_ptr< Request > &, const std::shared_ptr< Response > &)> &  lambda )

explicit

Definition at line 65 of file ApplicationDispatcher.cpp.

        : lambda(lambda) {
    }

References lambda.

Member Function Documentation

dispatch()

bool express::dispatcher::ApplicationDispatcher::dispatch ( express::Controller &  controller, const std::string &  parentMountPath, const express::MountPoint &  mountPoint  )

overrideprivatevirtual

Implements express::Dispatcher.

Definition at line 70 of file ApplicationDispatcher.cpp.

                                                                              {
        bool requestMatched = false;
 
        const std::string absoluteMountPath = parentMountPath + mountPoint.relativeMountPath;
 
        if ((controller.getFlags() & Controller::NEXT) == 0) {
            // Split mount & request into path + query
            std::string_view mountPath;
            std::string_view mountQueryString;
            splitPathAndQuery(absoluteMountPath, mountPath, mountQueryString);
            auto requiredQueryPairs = parseQuery(mountQueryString);
 
            std::string_view requestPath;
            std::string_view requestQueryString;
            splitPathAndQuery(controller.getRequest()->originalUrl, requestPath, requestQueryString);
            auto requestQueryPairs = parseQuery(requestQueryString);
 
            // End-anchored equality (verbs) with one trailing slash relaxed when !strict
            std::string_view normalizedMountPath = mountPath;
            std::string_view normalizedRequestPath = requestPath;
            if (!controller.getStrictRouting()) {
                normalizedMountPath = trimOneTrailingSlash(normalizedMountPath);
                normalizedRequestPath = trimOneTrailingSlash(normalizedRequestPath);
            }
            if (normalizedMountPath.empty()) {
                normalizedMountPath = "/";
            }
 
            bool pathMatches = false;
            if (mountPath.find(':') != std::string::npos) {
                if (regex.mark_count() == 0) {
                    LOG(TRACE) << "ApplicationDispatcher: precompiled regex";
                    std::tie(regex, names) = compileParamRegex(mountPath,
                                                               /*isPrefix*/ true,
                                                               controller.getStrictRouting(),
                                                               controller.getCaseInsensitiveRouting());
                } else {
                    LOG(TRACE) << "ApplicationDispatcher: using precompiled regex";
                }
                pathMatches = matchAndFillParams(regex, names, requestPath, *controller.getRequest());
            } else {
                pathMatches = equalPath(normalizedRequestPath, normalizedMountPath, controller.getCaseInsensitiveRouting());
            }
 
            const bool queryMatches = querySupersetMatches(requestQueryPairs, requiredQueryPairs);
            requestMatched = (pathMatches && queryMatches);
 
            LOG(TRACE) << controller.getResponse()->getSocketContext()->getSocketConnection()->getConnectionName()
                       << " HTTP Express: application -> " << (requestMatched ? "MATCH" : "NO MATCH");
            LOG(TRACE) << "           RequestMethod: " << controller.getRequest()->method;
            LOG(TRACE) << "              RequestUrl: " << controller.getRequest()->url;
            LOG(TRACE) << "             RequestPath: " << controller.getRequest()->path;
            LOG(TRACE) << "       AbsoluteMountPath: " << absoluteMountPath;
            LOG(TRACE) << "           StrictRouting: " << controller.getStrictRouting();
            LOG(TRACE) << "  CaseInsensitiveRouting: " << controller.getCaseInsensitiveRouting();
 
            if (requestMatched) {
                controller.getRequest()->queries.insert(requestQueryPairs.begin(), requestQueryPairs.end());
 
                if (hasResult(absoluteMountPath)) {
                    setParams(absoluteMountPath, *controller.getRequest());
                }
 
                lambda(controller.getRequest(), controller.getResponse());
            }
        } else {
            LOG(TRACE) << controller.getResponse()->getSocketContext()->getSocketConnection()->getConnectionName()
                       << " HTTP Express: application -> next(...) called";
            LOG(TRACE) << "           RequestMethod: " << controller.getRequest()->method;
            LOG(TRACE) << "              RequestUrl: " << controller.getRequest()->url;
            LOG(TRACE) << "             RequestPath: " << controller.getRequest()->path;
            LOG(TRACE) << "       AbsoluteMountPath: " << absoluteMountPath;
        }
 
        return requestMatched;
    }

References express::dispatcher::compileParamRegex(), express::dispatcher::equalPath(), express::Controller::getCaseInsensitiveRouting(), core::socket::stream::SocketConnection::getConnectionName(), express::Controller::getFlags(), express::Controller::getRequest(), express::Controller::getResponse(), core::socket::stream::SocketContext::getSocketConnection(), express::Response::getSocketContext(), express::Controller::getStrictRouting(), express::dispatcher::hasResult(), lambda, express::dispatcher::matchAndFillParams(), express::Request::method, names, express::Controller::NEXT, express::Request::originalUrl, express::dispatcher::parseQuery(), express::Request::path, express::Request::queries, express::dispatcher::querySupersetMatches(), express::MountPoint::relativeMountPath, express::dispatcher::setParams(), express::dispatcher::splitPathAndQuery(), express::dispatcher::trimOneTrailingSlash(), and express::Request::url.

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getRoutes()

std::list< std::string > express::dispatcher::ApplicationDispatcher::getRoutes ( const std::string &  parentMountPath, const MountPoint &  mountPoint, bool  strictRouting  ) const

overrideprivatevirtual

Implements express::Dispatcher.

Definition at line 150 of file ApplicationDispatcher.cpp.

                                                                                                                             {
        std::list<std::string> routes{"A " + parentMountPath + mountPoint.relativeMountPath + (!strictRouting ? "*" : "")};
        routes.push_back("  " + mountPoint.method + " " + mountPoint.relativeMountPath);
 
        if (nextRoute) {
            routes.splice(routes.end(), nextRoute->getRoute(parentMountPath, strictRouting));
        }
 
        return routes;
    }

References express::Route::getRoute(), express::MountPoint::method, express::Dispatcher::nextRoute, and express::MountPoint::relativeMountPath.

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Member Data Documentation

lambda

const std::function<void(const std::shared_ptr<Request>&, const std::shared_ptr<Response>&)> express::dispatcher::ApplicationDispatcher::lambda

private

Definition at line 74 of file ApplicationDispatcher.h.

Referenced by ApplicationDispatcher(), and dispatch().

names

std::vector<std::string> express::dispatcher::ApplicationDispatcher::names

private

Definition at line 77 of file ApplicationDispatcher.h.

Referenced by dispatch().

regex

std::regex express::dispatcher::ApplicationDispatcher::regex

private

Definition at line 76 of file ApplicationDispatcher.h.

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The documentation for this class was generated from the following files:

• express/dispatcher/ApplicationDispatcher.h
• express/dispatcher/ApplicationDispatcher.cpp