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

   1 /* ownCloud Android client application
   2  *
   3  *   @author David A. Velasco
   4  *   @author masensio
   5  *   Copyright (C) 2014 ownCloud Inc.
   6  *
   7  *   This program is free software: you can redistribute it and/or modify
   8  *   it under the terms of the GNU General Public License version 2,
   9  *   as published by the Free Software Foundation.
  10  *
  11  *   This program is distributed in the hope that it will be useful,
  12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *   GNU General Public License for more details.
  15  *
  16  *   You should have received a copy of the GNU General Public License
  17  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  *
  19  */
  20
  21 package com.owncloud.android.operations;
  22
  23 import java.util.ArrayList;
  24
  25 import com.owncloud.android.authentication.AccountUtils;
  26 import com.owncloud.android.lib.common.OwnCloudClient;
  27 import com.owncloud.android.lib.common.operations.RemoteOperation;
  28 import com.owncloud.android.lib.common.operations.RemoteOperationResult;
  29 import com.owncloud.android.lib.common.operations.RemoteOperationResult.ResultCode;
  30 import com.owncloud.android.lib.common.utils.Log_OC;
  31 import com.owncloud.android.lib.resources.status.GetRemoteStatusOperation;
  32 import com.owncloud.android.lib.resources.status.OwnCloudVersion;
  33 import com.owncloud.android.operations.DetectAuthenticationMethodOperation.AuthenticationMethod;
  34
  35 import android.content.Context;
  36
  37 /**
  38  * Get basic information from an ownCloud server given its URL.
  39  *
  40  * Checks the existence of a configured ownCloud server in the URL, gets its version
  41  * and finds out what authentication method is needed to access files in it.
  42  */
  43
  44 public class GetServerInfoOperation extends RemoteOperation {
  45
  46     private static final String TAG = GetServerInfoOperation.class.getSimpleName();
  47
  48     private String mUrl;
  49     private Context mContext;
  50
  51     private ServerInfo mResultData;
  52
  53     /**
  54      * Constructor.
  55      *
  56      * @param url               URL to an ownCloud server.
  57      * @param context           Android context; needed to check network state
  58      *                          TODO ugly dependency, get rid of it.
  59      */
  60     public GetServerInfoOperation(String url, Context context) {
  61         mUrl = trimWebdavSuffix(url);
  62         mContext = context;
  63
  64         mResultData = new ServerInfo();
  65     }
  66
  67
  68     /**
  69      * Performs the operation
  70      *
  71      * @return      Result of the operation. If successful, includes an instance of
  72      *              {@link ServerInfo} with the information retrieved from the server.
  73      *              Call {@link RemoteOperationResult#getData()}.get(0) to get it.
  74      */
  75         @Override
  76         protected RemoteOperationResult run(OwnCloudClient client) {
  77
  78             // first: check the status of the server (including its version)
  79             GetRemoteStatusOperation getStatus = new GetRemoteStatusOperation(mContext);
  80             RemoteOperationResult result = getStatus.execute(client);
  81
  82         if (result.isSuccess()) {
  83             // second: get authentication method required by the server
  84             mResultData.mVersion = (OwnCloudVersion)(result.getData().get(0));
  85             mResultData.mIsSslConn = (result.getCode() == ResultCode.OK_SSL);
  86             mResultData.mBaseUrl = normalizeProtocolPrefix(mUrl, mResultData.mIsSslConn);
  87             RemoteOperationResult detectAuthResult = detectAuthorizationMethod(client);
  88
  89             // third: merge results
  90             if (detectAuthResult.isSuccess()) {
  91                 mResultData.mAuthMethod =
  92                         (AuthenticationMethod)detectAuthResult.getData().get(0);
  93                 ArrayList<Object> data = new ArrayList<Object>();
  94                 data.add(mResultData);
  95                 result.setData(data);
  96             } else {
  97                 result = detectAuthResult;
  98             }
  99         }
 100         return result;
 101         }
 102
 103
 104     private RemoteOperationResult detectAuthorizationMethod(OwnCloudClient client) {
 105         Log_OC.d(TAG, "Trying empty authorization to detect authentication method");
 106         DetectAuthenticationMethodOperation operation =
 107                 new DetectAuthenticationMethodOperation(mContext);
 108         return operation.execute(client);
 109     }
 110
 111
 112     private String trimWebdavSuffix(String url) {
 113         if (url == null) {
 114             url = "";
 115         } else {
 116             if (url.endsWith("/")) {
 117                 url = url.substring(0, url.length() - 1);
 118             }
 119             if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_4_0)){
 120                 url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_4_0.length());
 121             } else if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_2_0)){
 122                 url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_2_0.length());
 123             } else if (url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_1_2)){
 124                 url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_1_2.length());
 125             }
 126         }
 127         return url;
 128     }
 129
 130
 131     private String normalizeProtocolPrefix(String url, boolean isSslConn) {
 132         if (!url.toLowerCase().startsWith("http://") &&
 133                 !url.toLowerCase().startsWith("https://")) {
 134             if (isSslConn) {
 135                 return "https://" + url;
 136             } else {
 137                 return "http://" + url;
 138             }
 139         }
 140         return url;
 141     }
 142
 143
 144     public static class ServerInfo {
 145         public OwnCloudVersion mVersion = null;
 146         public String mBaseUrl = "";
 147         public AuthenticationMethod mAuthMethod = AuthenticationMethod.UNKNOWN;
 148         public boolean mIsSslConn = false;
 149     }
 150
 151 }