Source/Samples/43_HttpRequestDemo/HttpRequestDemo.cpp - master - Metallist64/rbfx

Source/Samples/43_HttpRequestDemo/HttpRequestDemo.cpp
120 строк4 KB
Eugene Kozlov
Fix URL regex. Switch to https in samples.
28 дек 2024, 19:54
28 дек 2024, 19:54ff5f092
//
// Copyright (c) 2008-2022 the Urho3D project.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//

#include <Urho3D/Core/CoreEvents.h>
#include <Urho3D/Core/ProcessUtils.h>
#include <Urho3D/Input/Input.h>
#include <Urho3D/Network/HttpRequest.h>
#include <Urho3D/UI/Font.h>
#include <Urho3D/UI/Text.h>
#include <Urho3D/UI/UI.h>

#include "HttpRequestDemo.h"

#include <Urho3D/DebugNew.h>


HttpRequestDemo::HttpRequestDemo(Context* context) :
    Sample(context)
{
}

void HttpRequestDemo::Start()
{
    // Execute base class startup
    Sample::Start();

    // Create the user interface
    CreateUI();

    // Subscribe to basic events such as update
    SubscribeToEvents();

    // Set the mouse mode to use in the sample
    SetMouseMode(MM_FREE);
    SetMouseVisible(true);
}

void HttpRequestDemo::CreateUI()
{
    auto* cache = GetSubsystem<ResourceCache>();

    // Construct new Text object
    text_ = new Text(context_);

    // Set font and text color
    text_->SetFont(cache->GetResource<Font>("Fonts/Anonymous Pro.ttf"), 15);
    text_->SetColor(Color(1.0f, 1.0f, 0.0f));

    // Align Text center-screen
    text_->SetHorizontalAlignment(HA_CENTER);
    text_->SetVerticalAlignment(VA_CENTER);

    // Add Text instance to the UI root element
    GetUIRoot()->AddChild(text_);
}

void HttpRequestDemo::SubscribeToEvents()
{
}

void HttpRequestDemo::Update(float timeStep)
{
    if (httpRequest_ == nullptr)
    {
        const ea::string verb = "GET";
        const ea::vector<ea::string> headers = {"hello: world"};
        httpRequest_ = MakeShared<HttpRequest>("https://httpbin.org/ip", verb, headers);
    }
    else
    {
        // Initializing HTTP request
        if (httpRequest_->GetState() == HTTP_INITIALIZING)
            return;
        // An error has occurred
        else if (httpRequest_->GetState() == HTTP_ERROR)
        {
            text_->SetText("An error has occurred: " + httpRequest_->GetError());
            UnsubscribeFromEvent(E_UPDATE);
            URHO3D_LOGERRORF("HttpRequest error: %s (%d)", httpRequest_->GetError().c_str(), httpRequest_->GetStatusCode());
        }
        else if (httpRequest_->GetState() == Urho3D::HTTP_OPEN)
            text_->SetText("Processing...");
        else if (httpRequest_->GetState() == Urho3D::HTTP_CLOSED)
        {
            message_ = httpRequest_->ReadString();

            URHO3D_LOGINFOF("HttpRequest success: %s (%d)", message_.c_str(), httpRequest_->GetStatusCode());

            SharedPtr<JSONFile> json(new JSONFile(context_));
            json->FromString(message_);

            const JSONValue val = json->GetRoot().Get("origin");
            if (val.IsNull())
                text_->SetText("Invalid JSON response retrieved!");
            else
                text_->SetText("Your IP is: " + val.GetString());

            UnsubscribeFromEvent(E_UPDATE);
        }
    }
}