Don't encode already encoded URLs. fixes #376

src/de/danoeh/antennapod/service/download/HttpDownloader.java

@@ -7,6 +7,7 @@ import de.danoeh.antennapod.PodcastApp;
 import de.danoeh.antennapod.R;
 import de.danoeh.antennapod.util.DownloadError;
 import de.danoeh.antennapod.util.StorageUtils;
+import de.danoeh.antennapod.util.URIUtil;
 import org.apache.commons.io.IOUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.http.Header;
@@ -29,24 +30,13 @@ public class HttpDownloader extends Downloader {
         super(request);
     }
 
-    private URI getURIFromRequestUrl(String source) {
-        try {
-            URL url = new URL(source);
-            return new URI(url.getProtocol(), url.getUserInfo(), url.getHost(), url.getPort(), url.getPath(), url.getQuery(), url.getRef());
-        } catch (MalformedURLException e) {
-            throw new IllegalArgumentException(e);
-        } catch (URISyntaxException e) {
-            throw new IllegalArgumentException(e);
-        }
-    }
-
     @Override
     protected void download() {
         HttpClient httpClient = AntennapodHttpClient.getHttpClient();
         BufferedOutputStream out = null;
         InputStream connection = null;
         try {
-            HttpGet httpGet = new HttpGet(getURIFromRequestUrl(request.getSource()));
+            HttpGet httpGet = new HttpGet(URIUtil.getURIFromRequestUrl(request.getSource()));
             String userInfo = httpGet.getURI().getUserInfo();
             if (userInfo != null) {
                 String[] parts = userInfo.split(":");

src/de/danoeh/antennapod/util/URIUtil.java

@@ -0,0 +1,35 @@
+package de.danoeh.antennapod.util;
+
+import android.util.Log;
+import de.danoeh.antennapod.AppConfig;
+
+import java.net.MalformedURLException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.URL;
+
+/**
+ * Utility methods for dealing with URL encoding.
+ */
+public class URIUtil {
+    private static final String TAG = "URIUtil";
+
+    private URIUtil() {}
+
+    public static URI getURIFromRequestUrl(String source) {
+        // try without encoding the URI
+        try {
+            return new URI(source);
+        } catch (URISyntaxException e) {
+            if (AppConfig.DEBUG) Log.d(TAG, "Source is not encoded, encoding now");
+        }
+        try {
+            URL url = new URL(source);
+            return new URI(url.getProtocol(), url.getUserInfo(), url.getHost(), url.getPort(), url.getPath(), url.getQuery(), url.getRef());
+        } catch (MalformedURLException e) {
+            throw new IllegalArgumentException(e);
+        } catch (URISyntaxException e) {
+            throw new IllegalArgumentException(e);
+        }
+    }
+}

src/instrumentationTest/de/test/antennapod/util/URIUtilTest.java

@@ -0,0 +1,21 @@
+package instrumentationTest.de.test.antennapod.util;
+
+import android.test.AndroidTestCase;
+import de.danoeh.antennapod.util.URIUtil;
+
+/**
+ * Test class for URIUtil
+ */
+public class URIUtilTest extends AndroidTestCase {
+
+    public void testGetURIFromRequestUrlShouldNotEncode() {
+        final String testUrl = "http://example.com/this%20is%20encoded";
+        assertEquals(testUrl, URIUtil.getURIFromRequestUrl(testUrl).toString());
+    }
+
+    public void testGetURIFromRequestUrlShouldEncode() {
+        final String testUrl = "http://example.com/this is not encoded";
+        final String expected = "http://example.com/this%20is%20not%20encoded";
+        assertEquals(expected, URIUtil.getURIFromRequestUrl(testUrl).toString());
+    }
+}