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package org.wordpress.android.util;
import android.content.Context;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.HttpStack;
import com.android.volley.toolbox.ImageRequest;
import org.json.JSONException;
import org.json.JSONObject;
import org.wordpress.android.models.Blog;
import org.wordpress.android.networking.WPDelayedHurlStack;
import java.io.UnsupportedEncodingException;
public class VolleyUtils {
/*
* Returns REST API 'error' string code from the response in the passed VolleyError
* for example, returns "already_subscribed" from this response:
* {
* "error": "already_subscribed",
* "message": "You are already subscribed to the specified topic."
* }
*/
public static String errStringFromVolleyError(VolleyError volleyError) {
JSONObject json = volleyErrorToJSON(volleyError);
if (json==null)
return "";
return JSONUtils.getString(json, "error");
}
public static int statusCodeFromVolleyError(VolleyError volleyError) {
if (volleyError == null || volleyError.networkResponse == null) {
return 0;
}
return volleyError.networkResponse.statusCode;
}
/*
* Returns REST API 'message' string field from the response in the passed VolleyError
* for example, returns "You are already subscribed to the specified topic." from this response:
* {
* "error": "already_subscribed",
* "message": "You are already subscribed to the specified topic."
* }
*/
public static String messageStringFromVolleyError(VolleyError volleyError) {
JSONObject json = volleyErrorToJSON(volleyError);
if (json==null)
return "";
return JSONUtils.getString(json, "message");
}
/*
* Attempts to return JSON from a volleyError - useful for WP REST API failures, which often
* contain JSON in the response
*/
public static JSONObject volleyErrorToJSON(VolleyError volleyError) {
if (volleyError == null || volleyError.networkResponse == null || volleyError.networkResponse.data == null
|| volleyError.networkResponse.headers == null) {
return null;
}
String contentType = volleyError.networkResponse.headers.get("Content-Type");
if (contentType == null || !contentType.equals("application/json")) {
return null;
}
try {
String response = new String(volleyError.networkResponse.data, "UTF-8");
JSONObject json = new JSONObject(response);
return json;
} catch (UnsupportedEncodingException e) {
return null;
} catch (JSONException e) {
return null;
}
}
/*
* Cancel all Volley requests that aren't for images
*/
public static void cancelAllNonImageRequests(RequestQueue requestQueue) {
if (requestQueue==null)
return;
RequestQueue.RequestFilter filter = new RequestQueue.RequestFilter() {
@Override
public boolean apply(Request<?> request) {
if (request instanceof ImageRequest)
return false;
return true;
}
};
requestQueue.cancelAll(filter);
}
/*
* Cancel all Volley requests
*/
public static void cancelAllRequests(RequestQueue requestQueue) {
if (requestQueue==null)
return;
RequestQueue.RequestFilter filter = new RequestQueue.RequestFilter() {
@Override
public boolean apply(Request<?> request) {
return true;
}
};
requestQueue.cancelAll(filter);
}
/*
* Return true if the blog is protected with HTTP Basic Auth
*/
public static boolean isCustomHTTPClientStackNeeded(Blog currentBlog) {
if (currentBlog.hasValidHTTPAuthCredentials())
return true;
return false;
}
public static HttpStack getHTTPClientStack(final Context ctx) {
return getHTTPClientStack(ctx, null);
}
public static HttpStack getHTTPClientStack(final Context ctx, final Blog currentBlog) {
return new WPDelayedHurlStack(ctx, currentBlog);
}
}
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