X-Git-Url: http://git.linex4red.de/pub/Android/ownCloud.git/blobdiff_plain/a20681b06320824a80f6da1e86c1c2d52a371636..a4ba6170ea7696e085b07adfef73eeb8b77cb8e2:/src/com/owncloud/android/authenticator/ConnectionCheckerRunnable.java

diff --git a/src/com/owncloud/android/authenticator/ConnectionCheckerRunnable.java b/src/com/owncloud/android/authenticator/ConnectionCheckerRunnable.java
new file mode 100644
index 00000000..d1d10706
--- /dev/null
+++ b/src/com/owncloud/android/authenticator/ConnectionCheckerRunnable.java
@@ -0,0 +1,170 @@
+/* ownCloud Android client application
+ *   Copyright (C) 2012 Bartek Przybylski
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+package com.owncloud.android.authenticator;
+
+import java.net.ConnectException;
+import java.net.SocketTimeoutException;
+import java.net.UnknownHostException;
+
+import javax.net.ssl.SSLHandshakeException;
+
+import org.apache.commons.httpclient.HttpStatus;
+import org.apache.commons.httpclient.methods.GetMethod;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import com.owncloud.android.AccountUtils;
+import com.owncloud.android.authenticator.OnConnectCheckListener.ResultType;
+import com.owncloud.android.utils.OwnCloudVersion;
+
+import eu.alefzero.webdav.WebdavClient;
+import android.content.Context;
+import android.net.ConnectivityManager;
+import android.net.Uri;
+import android.os.Handler;
+import android.util.Log;
+
+public class ConnectionCheckerRunnable implements Runnable {
+    
+    /** Maximum time to wait for a response from the server when the connection is being tested, in MILLISECONDs.  */
+    public static final int TRY_CONNECTION_TIMEOUT = 5000;
+    
+    private static final String TAG = "ConnectionCheckerRunnable";
+    private OnConnectCheckListener mListener;
+    private String mUrl;
+    private Handler mHandler;
+    private ResultType mLatestResult;
+    private Context mContext;
+    private OwnCloudVersion mOCVersion;
+
+    public void setListener(OnConnectCheckListener listener, Handler handler) {
+        mListener = listener;
+        mHandler = handler;
+    }
+
+    public ConnectionCheckerRunnable(String url, Context context) {
+        mListener = null;
+        mHandler = null;
+        mUrl = url;
+        mContext = context;
+        mOCVersion = null;
+    }
+
+    @Override
+    public void run() {
+
+        if (!isOnline()) {
+            postResult(ResultType.NO_NETWORK_CONNECTION);
+            return;
+        }
+        if (mUrl.startsWith("http://") || mUrl.startsWith("https://")) {
+            mLatestResult = (mUrl.startsWith("https://"))? ResultType.OK_SSL : ResultType.OK_NO_SSL;
+            tryConnection(Uri.parse(mUrl + AccountUtils.STATUS_PATH));
+            postResult(mLatestResult);
+        } else {
+            Uri uri = Uri.parse("https://" + mUrl + AccountUtils.STATUS_PATH);
+            if (tryConnection(uri)) {
+                postResult(ResultType.OK_SSL);
+                return;
+            }
+            Log.d(TAG,
+                    "establishing secure connection failed, trying non secure connection");
+            uri = Uri.parse("http://" + mUrl + AccountUtils.STATUS_PATH);
+
+            if (tryConnection(uri)) {
+                postResult(ResultType.OK_NO_SSL);
+                return;
+            }
+            postResult(mLatestResult);
+        }
+    }
+
+    public OwnCloudVersion getDiscoveredVersion() {
+        return mOCVersion;
+    }
+
+    private boolean tryConnection(Uri uri) {
+        WebdavClient wc = new WebdavClient();
+        wc.allowSelfsignedCertificates();
+        GetMethod get = new GetMethod(uri.toString());
+        boolean retval = false;
+        try {
+            int status = wc.executeMethod(get, TRY_CONNECTION_TIMEOUT);
+            switch (status) {
+            case HttpStatus.SC_OK: {
+                String response = get.getResponseBodyAsString();
+                JSONObject json = new JSONObject(response);
+                if (!json.getBoolean("installed")) {
+                    mLatestResult = ResultType.INSTANCE_NOT_CONFIGURED;
+                    break;
+                }
+                mOCVersion = new OwnCloudVersion(json.getString("version"));
+                if (!mOCVersion.isVersionValid())
+                    break;
+                retval = true;
+                break;
+            }
+            case HttpStatus.SC_NOT_FOUND:
+                mLatestResult = ResultType.FILE_NOT_FOUND;
+                break;
+            case HttpStatus.SC_INTERNAL_SERVER_ERROR:
+                mLatestResult = ResultType.INSTANCE_NOT_CONFIGURED;
+                break;
+            default:
+                mLatestResult = ResultType.UNKNOWN_ERROR;
+                Log.e(TAG, "Not handled status received from server: " + status);
+            }
+
+        } catch (Exception e) {
+            if (e instanceof UnknownHostException
+                    || e instanceof ConnectException 
+                    || e instanceof SocketTimeoutException) {
+                mLatestResult = ResultType.HOST_NOT_AVAILABLE;
+            } else if (e instanceof JSONException) {
+                mLatestResult = ResultType.INSTANCE_NOT_CONFIGURED;
+            } else if (e instanceof SSLHandshakeException) {
+                mLatestResult = ResultType.SSL_INIT_ERROR;
+            } else {
+                mLatestResult = ResultType.UNKNOWN_ERROR;
+            }
+            e.printStackTrace();
+        }
+
+        return retval;
+    }
+
+    private boolean isOnline() {
+        ConnectivityManager cm = (ConnectivityManager) mContext
+                .getSystemService(Context.CONNECTIVITY_SERVICE);
+        return cm != null && cm.getActiveNetworkInfo() != null
+                && cm.getActiveNetworkInfo().isConnectedOrConnecting();
+    }
+
+    private void postResult(final ResultType result) {
+        if (mHandler != null && mListener != null) {
+            mHandler.post(new Runnable() {
+                @Override
+                public void run() {
+                    mListener.onConnectionCheckResult(result);
+                }
+            });
+        }
+    }
+
+}