src/com/owncloud/android/operations/UpdateOCVersionOperation.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  Bartek Przybylski
   3  *
   4  *   This program is free software: you can redistribute it and/or modify
   5  *   it under the terms of the GNU General Public License as published by
   6  *   the Free Software Foundation, either version 3 of the License, or
   7  *   (at your option) any later version.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 package com.owncloud.android.operations;
  20
  21 import org.apache.commons.httpclient.HttpStatus;
  22 import org.apache.commons.httpclient.methods.GetMethod;
  23 import org.json.JSONException;
  24 import org.json.JSONObject;
  25
  26 import android.accounts.Account;
  27 import android.accounts.AccountManager;
  28 import android.content.Context;
  29 import android.util.Log;
  30
  31 import com.owncloud.android.AccountUtils;
  32 import com.owncloud.android.authenticator.AccountAuthenticator;
  33 import com.owncloud.android.operations.RemoteOperationResult.ResultCode;
  34 import com.owncloud.android.utils.OwnCloudVersion;
  35
  36 import eu.alefzero.webdav.WebdavClient;
  37
  38 /**
  39  * Remote operation that checks the version of an ownCloud server and stores it locally
  40  *
  41  * @author David A. Velasco
  42  */
  43 public class UpdateOCVersionOperation extends RemoteOperation {
  44
  45     private static final String TAG = UpdateOCVersionOperation.class.getSimpleName();
  46
  47     private Account mAccount;
  48     private Context mContext;
  49
  50
  51     public UpdateOCVersionOperation(Account account, Context context) {
  52         mAccount = account;
  53         mContext = context;
  54     }
  55
  56
  57     @Override
  58     protected RemoteOperationResult run(WebdavClient client) {
  59         AccountManager accountMngr = AccountManager.get(mContext);
  60         String statUrl = accountMngr.getUserData(mAccount, AccountAuthenticator.KEY_OC_BASE_URL);
  61         statUrl += AccountUtils.STATUS_PATH;
  62         RemoteOperationResult result = null;
  63         GetMethod get = null;
  64         try {
  65             get = new GetMethod(statUrl);
  66             int status = client.executeMethod(get);
  67             if (status != HttpStatus.SC_OK) {
  68                 client.exhaustResponse(get.getResponseBodyAsStream());
  69                 result = new RemoteOperationResult(false, status);
  70
  71             } else {
  72                 String response = get.getResponseBodyAsString();
  73                 if (response != null) {
  74                     JSONObject json = new JSONObject(response);
  75                     if (json != null && json.getString("version") != null) {
  76                         OwnCloudVersion ocver = new OwnCloudVersion(json.getString("version"));
  77                         if (ocver.isVersionValid()) {
  78                             accountMngr.setUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION, ocver.toString());
  79                             Log.d(TAG, "Got new OC version " + ocver.toString());
  80                             result = new RemoteOperationResult(ResultCode.OK);
  81
  82                         } else {
  83                             Log.w(TAG, "Invalid version number received from server: " + json.getString("version"));
  84                             result = new RemoteOperationResult(RemoteOperationResult.ResultCode.BAD_OC_VERSION);
  85                         }
  86                     }
  87                 }
  88                 if (result == null) {
  89                     result = new RemoteOperationResult(RemoteOperationResult.ResultCode.INSTANCE_NOT_CONFIGURED);
  90                 }
  91             }
  92             Log.i(TAG, "Check for update of ownCloud server version at " + client.getBaseUri() + ": " + result.getLogMessage());
  93
  94         } catch (JSONException e) {
  95             result = new RemoteOperationResult(RemoteOperationResult.ResultCode.INSTANCE_NOT_CONFIGURED);
  96             Log.e(TAG, "Check for update of ownCloud server version at " + client.getBaseUri() + ": " + result.getLogMessage(), e);
  97
  98         } catch (Exception e) {
  99             result = new RemoteOperationResult(e);
 100             Log.e(TAG, "Check for update of ownCloud server version at " + client.getBaseUri() + ": " + result.getLogMessage(), e);
 101
 102         } finally {
 103             if (get != null)
 104                 get.releaseConnection();
 105         }
 106         return result;
 107     }
 108
 109 }