133 lines
4.1 KiB
C++
133 lines
4.1 KiB
C++
//
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// Copyright (c) 2008-2021 the Urho3D project.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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#include <Urho3D/Core/CoreEvents.h>
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#include <Urho3D/Core/ProcessUtils.h>
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#include <Urho3D/Input/Input.h>
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#include <Urho3D/Network/Network.h>
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#include <Urho3D/Network/HttpRequest.h>
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#include <Urho3D/UI/Font.h>
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#include <Urho3D/UI/Text.h>
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#include <Urho3D/UI/UI.h>
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#include "HttpRequestDemo.h"
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#include <Urho3D/DebugNew.h>
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URHO3D_DEFINE_APPLICATION_MAIN(HttpRequestDemo)
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HttpRequestDemo::HttpRequestDemo(Context* context) :
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Sample(context)
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{
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}
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void HttpRequestDemo::Start()
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{
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// Execute base class startup
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Sample::Start();
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// Create the user interface
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CreateUI();
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// Subscribe to basic events such as update
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SubscribeToEvents();
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// Set the mouse mode to use in the sample
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Sample::InitMouseMode(MM_FREE);
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}
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void HttpRequestDemo::CreateUI()
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{
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auto* cache = GetSubsystem<ResourceCache>();
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// Construct new Text object
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text_ = new Text(context_);
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// Set font and text color
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text_->SetFont(cache->GetResource<Font>("Fonts/Anonymous Pro.ttf"), 15);
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text_->SetColor(Color(1.0f, 1.0f, 0.0f));
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// Align Text center-screen
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text_->SetHorizontalAlignment(HA_CENTER);
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text_->SetVerticalAlignment(VA_CENTER);
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// Add Text instance to the UI root element
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GetSubsystem<UI>()->GetRoot()->AddChild(text_);
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}
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void HttpRequestDemo::SubscribeToEvents()
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{
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// Subscribe HandleUpdate() function for processing HTTP request
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SubscribeToEvent(E_UPDATE, URHO3D_HANDLER(HttpRequestDemo, HandleUpdate));
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}
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void HttpRequestDemo::HandleUpdate(StringHash eventType, VariantMap& eventData)
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{
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auto* network = GetSubsystem<Network>();
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if (httpRequest_.Null())
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#ifdef URHO3D_SSL
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httpRequest_ = network->MakeHttpRequest("https://api.ipify.org/?format=json");
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#else
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httpRequest_ = network->MakeHttpRequest("http://httpbin.org/ip");
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#endif
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else
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{
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// Initializing HTTP request
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if (httpRequest_->GetState() == HTTP_INITIALIZING)
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return;
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// An error has occurred
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else if (httpRequest_->GetState() == HTTP_ERROR)
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{
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text_->SetText("An error has occurred: " + httpRequest_->GetError());
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UnsubscribeFromEvent("Update");
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URHO3D_LOGERRORF("HttpRequest error: %s", httpRequest_->GetError().CString());
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}
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// Get message data
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else
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{
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if (httpRequest_->GetAvailableSize() > 0)
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message_ += httpRequest_->ReadLine();
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else
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{
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text_->SetText("Processing...");
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SharedPtr<JSONFile> json(new JSONFile(context_));
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json->FromString(message_);
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#ifdef URHO3D_SSL
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JSONValue val = json->GetRoot().Get("ip");
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#else
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JSONValue val = json->GetRoot().Get("origin");
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#endif
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if (val.IsNull())
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text_->SetText("Invalid JSON response retrieved!");
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else
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text_->SetText("Your IP is: " + val.GetString());
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UnsubscribeFromEvent("Update");
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}
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}
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}
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}
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