Make sure URL connection is closed

app/src/main/java/eu/faircode/email/ContactInfo.java

@@ -354,7 +354,7 @@ public class ContactInfo {
                                 emailGravatar.put(gkey, new Gravatar(false));
                             }
                         } else
-                            throw new IOException("HTTP status=" + status);
+                            throw new IOException("Error " + status + ": " + urlConnection.getResponseMessage());
 
                     } catch (Throwable ex) {
                         Log.w(ex);
@@ -907,7 +907,7 @@ public class ContactInfo {
         try {
             int status = connection.getResponseCode();
             if (status != HttpURLConnection.HTTP_OK)
-                throw new FileNotFoundException("Error " + status + ":" + connection.getResponseMessage());
+                throw new FileNotFoundException("Error " + status + ": " + connection.getResponseMessage());
 
             if ("image/svg+xml".equals(type) || url.getPath().endsWith(".svg")) {
                 Bitmap bitmap = ImageHelper.renderSvg(connection.getInputStream(), Color.WHITE, scaleToPixels);

app/src/main/java/eu/faircode/email/DisconnectBlacklist.java

@@ -123,7 +123,7 @@ public class DisconnectBlacklist {
         try {
             int status = connection.getResponseCode();
             if (status != HttpsURLConnection.HTTP_OK)
-                throw new FileNotFoundException("Error " + status + ":" + connection.getResponseMessage());
+                throw new FileNotFoundException("Error " + status + ": " + connection.getResponseMessage());
 
             String response = Helper.readStream(connection.getInputStream());
             Helper.writeText(file, response);

app/src/main/java/eu/faircode/email/EmailProvider.java

@@ -391,7 +391,7 @@ public class EmailProvider implements Parcelable {
 
             int status = request.getResponseCode();
             if (status != HttpURLConnection.HTTP_OK)
-                throw new FileNotFoundException("Error " + status + ":" + request.getResponseMessage());
+                throw new FileNotFoundException("Error " + status + ": " + request.getResponseMessage());
 
             // https://developer.android.com/reference/org/xmlpull/v1/XmlPullParser
             XmlPullParserFactory factory = XmlPullParserFactory.newInstance();

app/src/main/java/eu/faircode/email/FragmentMessages.java

@@ -8037,7 +8037,7 @@ public class FragmentMessages extends FragmentBase implements SharedPreferences.
                                     try {
                                         int status = connection.getResponseCode();
                                         if (status != HttpURLConnection.HTTP_OK)
-                                            throw new FileNotFoundException("Error " + status + ":" + connection.getResponseMessage());
+                                            throw new FileNotFoundException("Error " + status + ": " + connection.getResponseMessage());
 
                                         Helper.copy(connection.getInputStream(), os);
                                     } finally {

app/src/main/java/eu/faircode/email/FragmentOAuth.java

@@ -598,7 +598,7 @@ public class FragmentOAuth extends FragmentBase {
                     try {
                         int status = connection.getResponseCode();
                         if (status != HttpsURLConnection.HTTP_OK)
-                            throw new FileNotFoundException("Error " + status + ":" + connection.getResponseMessage());
+                            throw new FileNotFoundException("Error " + status + ": " + connection.getResponseMessage());
 
                         String json = Helper.readStream(connection.getInputStream());
                         Log.i("json=" + json);

app/src/main/java/eu/faircode/email/IPInfo.java

@@ -82,7 +82,7 @@ public class IPInfo {
         try {
             int status = connection.getResponseCode();
             if (status != HttpsURLConnection.HTTP_OK)
-                throw new FileNotFoundException("Error " + status + ":" + connection.getResponseMessage());
+                throw new FileNotFoundException("Error " + status + ": " + connection.getResponseMessage());
 
             String response = Helper.readStream(connection.getInputStream());
             organization.name = response.trim();

app/src/main/java/eu/faircode/email/ImageHelper.java

@@ -639,31 +639,36 @@ class ImageHelper {
                 urlConnection.setRequestProperty("User-Agent", WebViewEx.getUserAgent(context));
                 urlConnection.connect();
 
-                int status = urlConnection.getResponseCode();
-
-                if (status == HttpURLConnection.HTTP_MOVED_PERM ||
-                        status == HttpURLConnection.HTTP_MOVED_TEMP ||
-                        status == HttpURLConnection.HTTP_SEE_OTHER ||
-                        status == 307 /* Temporary redirect */ ||
-                        status == 308 /* Permanent redirect */) {
-                    if (++redirects > MAX_REDIRECTS)
-                        throw new IOException("Too many redirects");
-
-                    String header = urlConnection.getHeaderField("Location");
-                    if (header == null)
-                        throw new IOException("Location header missing");
-
-                    String location = URLDecoder.decode(header, StandardCharsets.UTF_8.name());
-                    url = new URL(url, location);
-                    Log.i("Redirect #" + redirects + " to " + url);
+                try {
+                    int status = urlConnection.getResponseCode();
+
+                    if (status == HttpURLConnection.HTTP_MOVED_PERM ||
+                            status == HttpURLConnection.HTTP_MOVED_TEMP ||
+                            status == HttpURLConnection.HTTP_SEE_OTHER ||
+                            status == 307 /* Temporary redirect */ ||
+                            status == 308 /* Permanent redirect */) {
+                        if (++redirects > MAX_REDIRECTS)
+                            throw new IOException("Too many redirects");
+
+                        String header = urlConnection.getHeaderField("Location");
+                        if (header == null)
+                            throw new IOException("Location header missing");
+
+                        String location = URLDecoder.decode(header, StandardCharsets.UTF_8.name());
+                        url = new URL(url, location);
+                        Log.i("Redirect #" + redirects + " to " + url);
+
+                        urlConnection.disconnect();
+                        continue;
+                    }
 
+                    if (status != HttpURLConnection.HTTP_OK)
+                        throw new IOException("Error " + status + ": " + urlConnection.getResponseMessage());
+                } catch (IOException ex) {
                     urlConnection.disconnect();
-                    continue;
+                    throw ex;
                 }
 
-                if (status != HttpURLConnection.HTTP_OK)
-                    throw new IOException("HTTP status=" + status);
-
                 break;
             }