unityの通信処理

NetworkConection.cs

public class NetworkConection : MonoBehaviour {

	private const string imageParamKey = "IMAGE_FILE";
	private const string imageMimeType = "image/png";

	public void SendAsyncTextRequest (string url, POSTParameter paramObj, Action<string, string> completed) {
		
		StartCoroutine(RequestText(url, paramObj, (www)=> {
			
			if (!string.IsNullOrEmpty(www.error)) {
				
				completed(null, www.error);
				return;
			}
			
			completed(www.text, null);
		}));
	}
			
	IEnumerator RequestText(string url, POSTParameter paramObj, Action<WWW> act) {
		
		WWWForm wwwForm = new WWWForm();
		if (paramObj != null && 
			paramObj.textParams != null) {
			
			foreach (string key in paramObj.textParams.Keys) {
				wwwForm.AddField(key, paramObj.textParams[key].ToString());
			}
		}
		
		if (paramObj != null && 
			paramObj.image != null && 
			paramObj.image.Length > 0) {
			
			wwwForm.AddBinaryData(imageParamKey, paramObj.image, paramObj.imageName, imageMimeType);
		}
		
		using( WWW www = new WWW(url, wwwForm)) {
			
			while(!www.isDone && string.IsNullOrEmpty(www.error)) {
				yield return null;
			}
			
			if(act!=null)
				act(www);
		}
	}
}

public class POSTParameter {

	public Hashtable 	textParams 	{get; private set;}
	public string 		imageName 	{get; private set;}
	public byte[] 		image 		{get; private set;}
	
	public POSTParameter () {
		
		this.image = null;
		this.imageName = null;
		this.textParams = new Hashtable();
	}
	
	public void addTextParam (string key, string val) {
		
		this.textParams.Add(key, val);
	}
	
	public void setImage (string fileName, byte[] image) {
		
		this.imageName = fileName;
		this.image = image;
	}
	
	public void setImage (string fileName, Texture2D image) {
		
		this.imageName = fileName;
		this.image = image.EncodeToPNG();
	}
}