return url inside a json rather than just a url for more flexibility

and so python's error messages don't trigger Notifications that then
fail.

xwords4/android/XWords4/src/org/eehouse/android/xw4/NetUtils.java

@@ -48,6 +48,7 @@ import org.apache.http.client.methods.HttpPost;
 import org.apache.http.impl.client.DefaultHttpClient;
 import org.apache.http.message.BasicNameValuePair;
 import org.apache.http.util.EntityUtils;
+import org.json.JSONObject;
 
 import org.eehouse.android.xw4.jni.CommonPrefs;
 
@@ -287,6 +288,22 @@ public class NetUtils {
         }
     } // sendToRelay
 
+    private static String urlFromJson( String json )
+    {
+        String result = null;
+        if ( null != json ) {
+            try {
+                JSONObject jobj = new JSONObject( json );
+                if ( null != jobj && jobj.has( "url" ) ) {
+                    result = jobj.getString( "url" );
+                }
+            } catch ( org.json.JSONException jse ) {
+                DbgUtils.loge( jse );
+            }
+        }
+        return result;
+    }
+
     private static HttpPost makePost( String proc )
     {
         return new HttpPost("http://www.eehouse.org/xw4/info.py/" + proc);
@@ -327,7 +344,8 @@ public class NetUtils {
         nvp.add( new BasicNameValuePair( "name", dal.name ) );
         nvp.add( new BasicNameValuePair( "lang", langStr ) );
         nvp.add( new BasicNameValuePair( "md5sum", sum ) );
-        return runPost( post, nvp );
+        String json = runPost( post, nvp );
+        return urlFromJson( json );
     }
 
     public static void checkVersions( Context context ) 
@@ -349,7 +367,8 @@ public class NetUtils {
                 nvp.add( new BasicNameValuePair( "version", 
                                                  String.format( "%d", 
                                                                 versionCode ) ) );
-                String url = runPost( post, nvp );
+                String json = runPost( post, nvp );
+                String url = urlFromJson( json );
                 if ( null != url ) {
                     ApplicationInfo ai = pm.getApplicationInfo( packageName, 0);
                     String label = pm.getApplicationLabel( ai ).toString();

xwords4/android/scripts/info.py

@@ -3,7 +3,7 @@
 # the client's version is up-to-date or with the newer version if it's
 # not.  May include md5 sums in liu of versions for .xwd files.
 
-import logging, shelve, hashlib, sys
+import logging, shelve, hashlib, sys, json
 
 k_suffix = '.xwd'
 k_filebase = "/var/www/"
@@ -56,21 +56,22 @@ def getDictSums():
 # public
 def curVersion( req, name, version ):
     global k_versions
-    result = ""
+    result = {}
     logging.debug( "version: " + version )
     if name in k_versions:
         if k_versions[name]['version'] > int(version):
             logging.debug( name + " is old" )
-            result = k_urlbase + k_versions[name]['url']
+            result['url'] = k_urlbase + k_versions[name]['url']
+            result['success'] = True
         else:
             logging.debug(name + " is up-to-date")
     else:
         logging.debug( 'Error: bad name ' + name )
-    return result
+    return json.dumps( result )
 
 # public
 def dictVersion( req, name, lang, md5sum ):
-    result = ''
+    result = {}
     if not name.endswith(k_suffix): name += k_suffix
     dictSums = getDictSums()
     path = lang + "/" + name
@@ -81,11 +82,12 @@ def dictVersion( req, name, lang, md5sum ):
             s_shelf['sums'] = dictSums
     if path in dictSums:
         if dictSums[path] != md5sum:
-            result = k_urlbase + "and_wordlists/" + path
+            result['url'] = k_urlbase + "and_wordlists/" + path
+            result['success'] = True
     else:
         logging.debug( path + " not known" )
     s_shelf.close()
-    return result
+    return json.dumps( result )
 
 def clearShelf():
     shelf = shelve.open(k_shelfFile)