DiagramDesigner/diagramCommunication/source/httpChannel.cpp

// HttpChannel.cpp
#include "httpChannel.h"
#include <QNetworkAccessManager>
#include <QNetworkRequest>
#include <QNetworkReply>
#include <QAuthenticator>
#include <QDebug>

HttpChannel::HttpChannel(const ChannelConfig& config, QObject* parent)
    : BaseChannel(config, parent)
{
}

bool HttpChannel::connect()
{
    // HTTP无需建立持久连接
    emit connected();
    return true;
}

bool HttpChannel::disconnect()
{
    // HTTP无需断开持久连接
    emit disconnected();
    return true;
}

bool HttpChannel::isConnected() const
{
    return m_config.endpoint.isValid();  // 只要端点有效就认为"可连接"
}

bool HttpChannel::send(const QByteArray& data)
{
    return post(data);
}

bool HttpChannel::get(const QString& path)
{
    if (!m_config.endpoint.isValid()) {
        emit errorOccurred("Invalid endpoint");
        return false;
    }

    QUrl url = m_config.endpoint;
    if (!path.isEmpty()) {
        url.setPath(url.path() + "/" + path);
    }

    QNetworkAccessManager* manager = new QNetworkAccessManager(this);

    QObject::connect(manager, &QNetworkAccessManager::authenticationRequired,
            [this](QNetworkReply* reply, QAuthenticator* authenticator) {
                if (!m_username.isEmpty() && !m_password.isEmpty()) {
                    authenticator->setUser(m_username);
                    authenticator->setPassword(m_password);
                }
            });

    QNetworkRequest request(url);

    // 设置头
    for (auto it = m_headers.begin(); it != m_headers.end(); ++it) {
        request.setRawHeader(it.key().toUtf8(), it.value().toUtf8());
    }

    QNetworkReply* reply = manager->get(request);

    QObject::connect(reply, &QNetworkReply::finished, [this, reply, manager]() {
        if (reply->error() == QNetworkReply::NoError) {
            QByteArray data = reply->readAll();
            emit dataReceived(data);
        } else {
            emit errorOccurred(reply->errorString());
        }

        reply->deleteLater();
        manager->deleteLater();
    });

    return true;
}

bool HttpChannel::post(const QByteArray& data, const QString& path)
{
    if (!m_config.endpoint.isValid()) {
        emit errorOccurred("Invalid endpoint");
        return false;
    }

    QUrl url = m_config.endpoint;
    if (!path.isEmpty()) {
        url.setPath(url.path() + "/" + path);
    }

    QNetworkAccessManager* manager = new QNetworkAccessManager(this);

    QNetworkRequest request(url);
    request.setHeader(QNetworkRequest::ContentTypeHeader, "application/json");

    for (auto it = m_headers.begin(); it != m_headers.end(); ++it) {
        request.setRawHeader(it.key().toUtf8(), it.value().toUtf8());
    }

    QNetworkReply* reply = manager->post(request, data);

    QObject::connect(reply, &QNetworkReply::finished,this,[this, reply, manager]() {
        if (reply->error() == QNetworkReply::NoError) {
            QByteArray data = reply->readAll();
            emit dataReceived(data);
        } else {
            emit errorOccurred(reply->errorString());
        }

        reply->deleteLater();
        manager->deleteLater();
    });

    return true;
}

bool HttpChannel::put(const QByteArray& data, const QString& path)
{
    // 类似post的实现
    return post(data, path);  // 简化处理
}

bool HttpChannel::deleteResource(const QString& path)
{
    // 类似get的实现
    return get(path);  // 简化处理
}

void HttpChannel::setBasicAuth(const QString& username, const QString& password)
{
    m_username = username;
    m_password = password;
}

void HttpChannel::setHeader(const QString& name, const QString& value)
{
    m_headers[name] = value;
}