start on checking for updates/latest version: a menu item that

triggers new code that sends an HTTP POST to a python script on the
server that returns whether the current version is correct.

xwords4/android/XWords4/res/menu/games_list_menu.xml

@@ -1,6 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 
 <menu xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:id="@+id/gamel_menu_checkupdates"
+          android:title="@string/gamel_menu_checkupdates"
+          />
     <item android:id="@+id/gamel_menu_newgame"
           android:title="@string/button_new_game"
           android:icon="@android:drawable/ic_menu_add"
@@ -31,7 +34,6 @@
           android:title="@string/gamel_menu_checkmoves"
           android:icon="@drawable/stat_notify_sync"
           />
-
     <!-- Debug only menuitems -->
     <item android:id="@+id/gamel_menu_storedb"
           android:title="@string/gamel_menu_storedb"

xwords4/android/XWords4/res/values/strings.xml

@@ -1996,4 +1996,6 @@
     enable play via SMS, go to Settings->Network game settings.)
     </string>
 
+    <string name="gamel_menu_checkupdates">Check for updates</string>
+
 </resources>

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

@@ -577,6 +577,10 @@ public class GamesList extends XWListActivity
                                  SYNC_MENU_ACTION );
             break;
 
+        case R.id.gamel_menu_checkupdates:
+            NetUtils.checkVersions( this );
+            break;
+
         case R.id.gamel_menu_prefs:
             intent = new Intent( this, PrefsActivity.class );
             startActivity( intent );

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

@@ -25,15 +25,27 @@ import java.net.InetAddress;
 import java.net.Socket;
 import android.content.Context;
 
-import java.io.InputStream;
-import java.io.DataInputStream;
-import java.io.OutputStream;
-import java.io.DataOutputStream;
 import java.io.ByteArrayOutputStream;
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.InputStream;
+import java.io.OutputStream;
 import java.util.ArrayList;
 import java.util.HashMap;
-import java.util.ArrayList;
 import java.util.Iterator;
+import java.util.List;
+import android.content.pm.PackageManager;
+
+import org.apache.http.HttpEntity;
+import org.apache.http.HttpResponse;
+import org.apache.http.NameValuePair;
+import org.apache.http.client.ClientProtocolException;
+import org.apache.http.client.HttpClient;
+import org.apache.http.client.entity.UrlEncodedFormEntity;
+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.eehouse.android.xw4.jni.CommonPrefs;
 
@@ -270,4 +282,41 @@ public class NetUtils {
         }
     } // sendToRelay
 
+
+    public static void checkVersions( Context context ) 
+    {
+        PackageManager pm = context.getPackageManager();
+        String packageName = context.getPackageName();
+        try { 
+            int versionCode = pm.getPackageInfo( packageName, 0 ).versionCode;
+
+            // Create a new HttpClient and Post Header
+            HttpPost post = 
+                new HttpPost("http://www.eehouse.org/xw4/info.py/curVersion");
+
+            // Add your data
+            List<NameValuePair> nvp = new ArrayList<NameValuePair>();
+            nvp.add(new BasicNameValuePair( "name", packageName ) );
+            nvp.add( new BasicNameValuePair( "version", 
+                                             String.format( "%d", 
+                                                            versionCode ) ) );
+            post.setEntity( new UrlEncodedFormEntity(nvp) );
+
+            // Execute HTTP Post Request
+            HttpClient httpclient = new DefaultHttpClient();
+            HttpResponse response = httpclient.execute(post);
+            HttpEntity entity = response.getEntity();
+            if (entity != null) {
+                String result = EntityUtils.toString( entity );
+                DbgUtils.logf( "checkVersions: received: \"%s\"", result );
+            }
+        } catch ( PackageManager.NameNotFoundException nnfe ) {
+            DbgUtils.logf( "checkVersions: %s", nnfe.toString() );
+        } catch (ClientProtocolException cpe) {
+            DbgUtils.logf( "checkVersions: %s", cpe.toString() );
+        } catch (java.io.IOException ioe) {
+            DbgUtils.logf( "checkVersions: %s", ioe.toString() );
+        }
+    }
+
 }

xwords4/android/scripts/info.py

@@ -0,0 +1,27 @@
+# Script meant to be installed on eehouse.org that will hard-code the
+# latest version of a bunch of stuff and reply with empty string if
+# 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
+
+s_versions = { 'org.eehouse.android.xw4' : '42'
+               ,'org.eehouse.android.xw4sms' : '41'
+               }
+
+logging.basicConfig(level=logging.DEBUG
+        ,format='%(asctime)s [[%(levelname)s]] %(message)s'
+        ,datefmt='%d %b %y %H:%M'
+        ,filename='/tmp/info.py.log'
+        ,filemode='a')
+
+def curVersion( req, name, version ):
+    global s_versions
+    if name in s_versions:
+        if s_versions[name] == version:
+            logging.debug(name + " is up-to-date")
+            return ""
+        else:
+            return s_versions[name]
+    else:
+        logging.debug( 'Error: bad name ' + name )