Unity/Csharp/Requestのソースを表示

==Httpリクエストサンプル==
以下delegateを使ったhttpリクエストサンプルコード
*WebHttpRequest.cs
<pre>
using System.Collections;
using System.Threading;
using UnityEngine;
using UnityEngine.Networking;

public class WebHttpRequest : MonoBehaviour {
    string text = "";
    private int retry = 10;
    public bool errorFlag = false;
    private int timeout = 2;
    // 現在のretry回数
    private int retryNum = 0;
    UnityWebRequest request;
    SynchronizationContext context;
    WWWForm paramPostForm;
    public enum ResponseType
    {
        Success,
        Failure,
        NetworkError
    }
    public delegate void CustomCallback(ResponseType responseType);
    private CustomCallback callbacks;
    public void AddCallback(CustomCallback callback)
    {
        callbacks += callback;
    }
    public void Init () {
        Debug.Log ("WebHttpRequest.Init()");
        paramPostForm = new WWWForm ();
    }
    public void setTimeout(int sec) {
        timeout = sec;
    }
    public void setRetry(int tmpRetry)
    {
        retry = tmpRetry;
    }
    public int getRetryNum() {
        return retryNum;
    }
    public void Exec (string url) {
        text = "";
        errorFlag = false;
        context = SynchronizationContext.Current; // メインスレッドでcontextを設置
        StartCoroutine(Get(url));
    }
    IEnumerator Get (string url) {
        request = new UnityWebRequest();
        request.downloadHandler = new DownloadHandlerBuffer();
        request.url = url;
        request.SetRequestHeader("Content-Type", "application/json; charset=UTF-8");
        request.method = UnityWebRequest.kHttpVerbGET;
        request.timeout = timeout;
        Debug.Log ("WebHttpRequest Get timeout=" + timeout);
        yield return request.Send();
        retryNum = 0;
        if (request.isNetworkError) {
            Debug.Log("request.isNetworkError request.error=" + request.error);
            if (request.error.Equals ("Request timeout")) {
                retryNum++;
                if (retryNum < retry) {
                    Debug.Log ("WebHttpRequest Get timeout " + request.error + " retryNum = "+retryNum);
                    Exec (url); // IEnumerator Get(url) メソッドへ
                } else {
                    errorFlag = true;
                    // メインスレッドへ戻す
                    context.Post(d =>
                    {
                        if (callbacks != null)
                        {
                            callbacks(ResponseType.NetworkError);
                        }
                    }, null);
                }
            } else {
                Debug.Log ("WebHttpRequest Get request.error=" + request.error);
                errorFlag = true;
                // メインスレッドへ戻す
                context.Post(d =>
                {
                    if (callbacks != null)
                    {
                        callbacks(ResponseType.NetworkError);
                    }
                }, null);
            }
        } else {
            if (request.responseCode == 200) {
                Debug.Log ("WebHttpRequest Get success request.responseCode=" + request.responseCode);
                text = request.downloadHandler.text;
                Debug.Log("WebHttpRequest Get text=" + text);
                // メインスレッドへ戻す
                context.Post(d =>
                {
                    if (callbacks != null)
                    {
                        callbacks(ResponseType.Success);
                    }
                }, null);
            } else {
                errorFlag = true;
                Debug.Log ("WebHttpRequest Get failed" + request.responseCode);
                // メインスレッドへ戻す
                context.Post(d =>
                {
                    if (callbacks != null)
                    {
                        callbacks(ResponseType.Failure);
                    }
                }, null);
            }
        }
    }
    public void ExecPost (string url) {
        text = "";
        errorFlag = false;
        context = SynchronizationContext.Current; // メインスレッドでcontextを設置
        StartCoroutine(Post (url));
    }
    public void ParamPost (string key, string value) {
        paramPostForm.AddField(key, value);
    }
    IEnumerator Post (string url) {
        request = UnityWebRequest.Post(url, paramPostForm);
        request.downloadHandler = new DownloadHandlerBuffer();
        request.SetRequestHeader("Content-Type", "application/json; charset=UTF-8");
        request.method = UnityWebRequest.kHttpVerbPOST;
        request.timeout = timeout;
        Debug.Log ("WebHttpRequest Post timeout=" + timeout);
        yield return request.Send();
        retryNum = 0;
        if (request.isNetworkError) {
            Debug.Log("WebHttpRequest Post " + request.error);
            if (request.error.Equals ("Request timeout")) {
                retryNum++;
                if (retryNum < retry) {
                    Debug.Log ("WebHttpRequest Post " + request.error + " retryNum= "+retryNum);
                    Exec (url); // IEnumerator Get(url) メソッドへ
                } else {
                    errorFlag = true;
                    // メインスレッドへ戻す
                    context.Post(d =>
                    {
                        if (callbacks != null)
                        {
                            callbacks(ResponseType.NetworkError);
                        }
                    }, null);
                }
            } else {
                Debug.Log ("WebHttpRequest Post " + request.error);
                errorFlag = true;
                // メインスレッドへ戻す
                context.Post(d =>
                {
                    if (callbacks != null)
                    {
                        callbacks(ResponseType.NetworkError);
                    }
                }, null);
            }
        } else {
            if (request.responseCode == 200) {
                Debug.Log ("WebHttpRequest Post success" + request.responseCode);
                text = request.downloadHandler.text;
                Debug.Log("WebHttpRequest Post " + text);
                // メインスレッドへ戻す
                context.Post(d =>
                {
                    if (callbacks != null)
                    {
                        callbacks(ResponseType.Success);
                    }
                }, null);
            } else {
                errorFlag = true;
                Debug.Log ("WebHttpRequest Post failed request.responseCode=" + request.responseCode);
                // メインスレッドへ戻す
                context.Post(d =>
                {
                    if (callbacks != null)
                    {
                        callbacks(ResponseType.Failure);
                    }
                }, null);
            }
        }
    }
    public string GetBody() {
        return text;
    }
    public void Reset() {
        text = "";
        errorFlag = false;
        paramPostForm = new WWWForm();
    }
    public string GetError()
    {
        if (request != null && request.error != null)
        {
            return request.error;
        }
        return "";
    }
}
</pre>

呼び出し元
*NewBehaviourScript.cs
<pre>
public class NewBehaviourScript : MonoBehaviour {
    WebHttpRequest request;
    // http送信
    void Start () {
        const string uri = "http://raw.githubusercontent.com/nlohmann/json/develop/test/data/json.org/1.json";
        string param1 = "value1";
        param1 = WWW.EscapeURL(param1);
        string query = "?hoge=" + param1;
        string url = uri + query;
        GameObject gameObj = new GameObject();
        request = gameObj.AddComponent<WebHttpRequest>();
        request.AddCallback(OnResponse);
        request.Exec(url);
        Debug.Log("request=" + url);
    }
    // httpのresponse受信
    public void OnResponse(WebHttpRequest.ResponseType responseType)
    {
        Debug.Log("OnResponse=" + responseType);
        if (request)
        {
            if (responseType.Equals(WebHttpRequest.ResponseType.Success))
            {
            Debug.Log("body=" + request.GetBody());
            } else if (responseType.Equals(WebHttpRequest.ResponseType.Failure)) {
                Debug.Log("errorFlag=" + request.errorFlag);
		if (!request.GetError().Equals(""))
		{
			Debug.Log(request.GetError()); // 例：huawei android端末（SSL CA certificate error
		}
            }
            else if (responseType.Equals(WebHttpRequest.ResponseType.NetworkError))
            {
                Debug.Log("NetworkError" + request.errorFlag);
		if (!request.GetError().Equals(""))
		{
			Debug.Log(request.GetError()); // 例：huawei android端末（SSL CA certificate error
		}
            }
            request.Reset();
        }
    }
}
</pre>

==http通信許可==

===android===
android9でhttp通信ができなくなってる。

取り急ぎhttp通信を対応したい場合
AndroidManifest.xmlのapplicationに以下属性追加
 android:usesCleartextTraffic="true"

https://ameblo.jp/znky/entry-12459683348.html

===ios===

#unity/build setting/ios/other setting/Configuration
#Allow downloads over HTTPをチェック
#Supported URL schemesのSizeに1を入れ、許可するドメイン"project1.example.net"などを入れる

チェックをつけると以下警告が出る
 You are using download over http. Currently Unity adds NSAllowsArbitraryLoads to Info.plist to simplify transition, but it will be removed soon. Please consider updating to https.

====それでも、http通信時、以下が出る時====
 The resource could not be loaded because the App Transport Security policy requires the use of a secure connection.

Info.plistへ以下を追加
<pre>
    <key>NSAppTransportSecurity</key>
    <dict>
      <key>NSAllowsArbitraryLoads</key>
      <true />
      <key>NSAllowsArbitraryLoadsInWebContent</key>
      <true />
      <key>NSExceptionDomains</key>
      <dict>
          <key>project1.example.net</key>
          <dict>
              <key>NSIncludesSubdomains</key>
              <true />
              <key>NSTemporaryExceptionAllowsInsecureHTTPLoads</key>
              <true />
          </dict>
      </dict>
</pre>
project1.example.netは適宜変更

参考：https://clevertap.com/blog/developing-for-ios9-app-transport-security/

=====補足=====
unityのiosの設定のAllow downloads over HTTPの下にあるSizeに1を入力しSchemaに、接続するドメイン(project1.example.netなど)を追加しても、以下が追加されるだけで、NSExceptionDomainsではないので、機能しない。

<pre>
    <key>CFBundleURLTypes</key>
    <array>
      <dict>
        <key>CFBundleURLName</key>
        <string></string>
        <key>CFBundleURLSchemes</key>
        <array>
          <string>project1.example.net</string>
        </array>
      </dict>
    </array>
</pre>

====iosで、"Malformed URL"エラーになるとき====
エラー詳細
 WebHttpRequest Get request.error=Malformed URL
たとえば、urlが
ttps://hoge.nonip.net/unityapi/statusread?uids[]=1515&uids[]=1130
のように、パラメータに"[]"を含むとurl形式エラーとなるみたい。"[]"を"%5B%5D"でエンコードしてあげると、うまくいく。