Reordered packages

src/com/owncloud/android/lib/common/OwnCloudClient.java

@@ -0,0 +1,267 @@
+/* ownCloud Android Library is available under MIT license
+ *   Copyright (C) 2014 ownCloud (http://www.owncloud.org/)
+ *   Copyright (C) 2012  Bartek Przybylski
+ *   
+ *   Permission is hereby granted, free of charge, to any person obtaining a copy
+ *   of this software and associated documentation files (the "Software"), to deal
+ *   in the Software without restriction, including without limitation the rights
+ *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *   copies of the Software, and to permit persons to whom the Software is
+ *   furnished to do so, subject to the following conditions:
+ *   
+ *   The above copyright notice and this permission notice shall be included in
+ *   all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 
+ *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 
+ *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
+ *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ *   THE SOFTWARE.
+ *
+ */
+
+package com.owncloud.android.lib.common;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.commons.httpclient.Credentials;
+import org.apache.commons.httpclient.Header;
+import org.apache.commons.httpclient.HttpClient;
+import org.apache.commons.httpclient.HttpConnectionManager;
+import org.apache.commons.httpclient.HttpException;
+import org.apache.commons.httpclient.HttpMethod;
+import org.apache.commons.httpclient.HttpMethodBase;
+import org.apache.commons.httpclient.HttpVersion;
+import org.apache.commons.httpclient.URI;
+import org.apache.commons.httpclient.UsernamePasswordCredentials;
+import org.apache.commons.httpclient.auth.AuthPolicy;
+import org.apache.commons.httpclient.auth.AuthScope;
+import org.apache.commons.httpclient.cookie.CookiePolicy;
+import org.apache.commons.httpclient.methods.HeadMethod;
+import org.apache.commons.httpclient.params.HttpMethodParams;
+import org.apache.http.HttpStatus;
+import org.apache.http.params.CoreProtocolPNames;
+
+import com.owncloud.android.lib.common.network.BearerAuthScheme;
+import com.owncloud.android.lib.common.network.BearerCredentials;
+import com.owncloud.android.lib.common.network.WebdavUtils;
+
+
+import android.net.Uri;
+import android.util.Log;
+
+public class OwnCloudClient extends HttpClient {
+    private static final int MAX_REDIRECTIONS_COUNT = 3;
+    
+    private Uri mUri;
+    private Uri mWebdavUri;
+    private Credentials mCredentials;
+    private boolean mFollowRedirects;
+    private String mSsoSessionCookie;
+    final private static String TAG = OwnCloudClient.class.getSimpleName();
+    public static final String USER_AGENT = "Android-ownCloud";
+    
+    static private byte[] sExhaustBuffer = new byte[1024];
+    
+    /**
+     * Constructor
+     */
+    public OwnCloudClient(HttpConnectionManager connectionMgr) {
+        super(connectionMgr);
+        Log.d(TAG, "Creating OwnCloudClient");
+        getParams().setParameter(HttpMethodParams.USER_AGENT, USER_AGENT);
+        getParams().setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);
+        mFollowRedirects = true;
+        mSsoSessionCookie = null;
+    }
+
+    public void setBearerCredentials(String accessToken) {
+        AuthPolicy.registerAuthScheme(BearerAuthScheme.AUTH_POLICY, BearerAuthScheme.class);
+        
+        List<String> authPrefs = new ArrayList<String>(1);
+        authPrefs.add(BearerAuthScheme.AUTH_POLICY);
+        getParams().setParameter(AuthPolicy.AUTH_SCHEME_PRIORITY, authPrefs);        
+        
+        mCredentials = new BearerCredentials(accessToken);
+        getState().setCredentials(AuthScope.ANY, mCredentials);
+        mSsoSessionCookie = null;
+    }
+
+    public void setBasicCredentials(String username, String password) {
+        List<String> authPrefs = new ArrayList<String>(1);
+        authPrefs.add(AuthPolicy.BASIC);
+        getParams().setParameter(AuthPolicy.AUTH_SCHEME_PRIORITY, authPrefs);        
+        
+        getParams().setAuthenticationPreemptive(true);
+        mCredentials = new UsernamePasswordCredentials(username, password);
+        getState().setCredentials(AuthScope.ANY, mCredentials);
+        mSsoSessionCookie = null;
+    }
+    
+    public void setSsoSessionCookie(String accessToken) {
+        getParams().setAuthenticationPreemptive(false);
+        getParams().setCookiePolicy(CookiePolicy.IGNORE_COOKIES);
+        mSsoSessionCookie = accessToken;
+        mCredentials = null;
+    }
+    
+    
+    /**
+     * Check if a file exists in the OC server
+     * 
+     * TODO replace with ExistenceOperation
+     * 
+     * @return              'true' if the file exists; 'false' it doesn't exist
+     * @throws  Exception   When the existence could not be determined
+     */
+    public boolean existsFile(String path) throws IOException, HttpException {
+        HeadMethod head = new HeadMethod(mWebdavUri.toString() + WebdavUtils.encodePath(path));
+        try {
+            int status = executeMethod(head);
+            Log.d(TAG, "HEAD to " + path + " finished with HTTP status " + status + ((status != HttpStatus.SC_OK)?"(FAIL)":""));
+            exhaustResponse(head.getResponseBodyAsStream());
+            return (status == HttpStatus.SC_OK);
+            
+        } finally {
+            head.releaseConnection();    // let the connection available for other methods
+        }
+    }
+    
+    /**
+     * Requests the received method with the received timeout (milliseconds).
+     * 
+     * Executes the method through the inherited HttpClient.executedMethod(method).
+     * 
+     * Sets the socket and connection timeouts only for the method received.
+     * 
+     * The timeouts are both in milliseconds; 0 means 'infinite'; < 0 means 'do not change the default'
+     * 
+     * @param method            HTTP method request.
+     * @param readTimeout       Timeout to set for data reception
+     * @param conntionTimout    Timeout to set for connection establishment
+     */
+    public int executeMethod(HttpMethodBase method, int readTimeout, int connectionTimeout) throws HttpException, IOException {
+        int oldSoTimeout = getParams().getSoTimeout();
+        int oldConnectionTimeout = getHttpConnectionManager().getParams().getConnectionTimeout();
+        try {
+            if (readTimeout >= 0) { 
+                method.getParams().setSoTimeout(readTimeout);   // this should be enough...
+                getParams().setSoTimeout(readTimeout);          // ... but this looks like necessary for HTTPS
+            }
+            if (connectionTimeout >= 0) {
+                getHttpConnectionManager().getParams().setConnectionTimeout(connectionTimeout);
+            }
+            return executeMethod(method);
+        } finally {
+            getParams().setSoTimeout(oldSoTimeout);
+            getHttpConnectionManager().getParams().setConnectionTimeout(oldConnectionTimeout);
+        }
+    }
+    
+    
+    @Override
+    public int executeMethod(HttpMethod method) throws IOException, HttpException {
+        boolean customRedirectionNeeded = false;
+        try {
+            method.setFollowRedirects(mFollowRedirects);
+        } catch (Exception e) {
+            //if (mFollowRedirects) Log_OC.d(TAG, "setFollowRedirects failed for " + method.getName() + " method, custom redirection will be used if needed");
+            customRedirectionNeeded = mFollowRedirects;
+        }
+        if (mSsoSessionCookie != null && mSsoSessionCookie.length() > 0) {
+            method.addRequestHeader("Cookie", mSsoSessionCookie);
+        }
+        int status = super.executeMethod(method);
+        int redirectionsCount = 0;
+        while (customRedirectionNeeded &&
+                redirectionsCount < MAX_REDIRECTIONS_COUNT &&
+                (   status == HttpStatus.SC_MOVED_PERMANENTLY || 
+                    status == HttpStatus.SC_MOVED_TEMPORARILY ||
+                    status == HttpStatus.SC_TEMPORARY_REDIRECT)
+                ) {
+            
+            Header location = method.getResponseHeader("Location");
+            if (location != null) {
+                Log.d(TAG,  "Location to redirect: " + location.getValue());
+                method.setURI(new URI(location.getValue(), true));
+                status = super.executeMethod(method);
+                redirectionsCount++;
+                
+            } else {
+                Log.d(TAG,  "No location to redirect!");
+                status = HttpStatus.SC_NOT_FOUND;
+            }
+        }
+        
+        return status;
+    }
+
+
+    /**
+     * Exhausts a not interesting HTTP response. Encouraged by HttpClient documentation.
+     * 
+     * @param responseBodyAsStream      InputStream with the HTTP response to exhaust.
+     */
+    public void exhaustResponse(InputStream responseBodyAsStream) {
+        if (responseBodyAsStream != null) {
+            try {
+                while (responseBodyAsStream.read(sExhaustBuffer) >= 0);
+                responseBodyAsStream.close();
+            
+            } catch (IOException io) {
+                Log.e(TAG, "Unexpected exception while exhausting not interesting HTTP response; will be IGNORED", io);
+            }
+        }
+    }
+
+    /**
+     * Sets the connection and wait-for-data timeouts to be applied by default to the methods performed by this client.
+     */
+    public void setDefaultTimeouts(int defaultDataTimeout, int defaultConnectionTimeout) {
+            getParams().setSoTimeout(defaultDataTimeout);
+            getHttpConnectionManager().getParams().setConnectionTimeout(defaultConnectionTimeout);
+    }
+
+    /**
+     * Sets the Webdav URI for the helper methods that receive paths as parameters, instead of full URLs
+     * @param uri
+     */
+    public void setWebdavUri(Uri uri) {
+        mWebdavUri = uri;
+    }
+
+    public Uri getWebdavUri() {
+        return mWebdavUri;
+    }
+    
+    /**
+     * Sets the base URI for the helper methods that receive paths as parameters, instead of full URLs
+     * @param uri
+     */
+    public void setBaseUri(Uri uri) {
+        mUri = uri;
+    }
+
+    public Uri getBaseUri() {
+        return mUri;
+    }
+
+    public final Credentials getCredentials() {
+        return mCredentials;
+    }
+    
+    public final String getSsoSessionCookie() {
+        return mSsoSessionCookie;
+    }
+
+    public void setFollowRedirects(boolean followRedirects) {
+        mFollowRedirects = followRedirects;
+    }
+
+}

src/com/owncloud/android/lib/common/OwnCloudClientFactory.java

@@ -0,0 +1,163 @@
+/* ownCloud Android Library is available under MIT license
+ *   Copyright (C) 2014 ownCloud (http://www.owncloud.org/)
+ *   
+ *   Permission is hereby granted, free of charge, to any person obtaining a copy
+ *   of this software and associated documentation files (the "Software"), to deal
+ *   in the Software without restriction, including without limitation the rights
+ *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *   copies of the Software, and to permit persons to whom the Software is
+ *   furnished to do so, subject to the following conditions:
+ *   
+ *   The above copyright notice and this permission notice shall be included in
+ *   all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 
+ *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 
+ *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
+ *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ *   THE SOFTWARE.
+ *
+ */
+
+package com.owncloud.android.lib.common;
+
+import java.io.IOException;
+import java.security.GeneralSecurityException;
+
+import com.owncloud.android.lib.common.accounts.AccountTypeUtils;
+import com.owncloud.android.lib.common.accounts.AccountUtils;
+import com.owncloud.android.lib.common.accounts.AccountUtils.AccountNotFoundException;
+import com.owncloud.android.lib.common.network.NetworkUtils;
+
+import android.accounts.Account;
+import android.accounts.AccountManager;
+import android.accounts.AccountManagerFuture;
+import android.accounts.AuthenticatorException;
+import android.accounts.OperationCanceledException;
+import android.app.Activity;
+import android.content.Context;
+import android.net.Uri;
+import android.os.Bundle;
+import android.util.Log;
+
+public class OwnCloudClientFactory {
+    
+    final private static String TAG = OwnCloudClientFactory.class.getSimpleName();
+    
+    /** Default timeout for waiting data from the server */
+    public static final int DEFAULT_DATA_TIMEOUT = 60000;
+    
+    /** Default timeout for establishing a connection */
+    public static final int DEFAULT_CONNECTION_TIMEOUT = 60000;
+
+    
+    /**
+     * Creates a OwnCloudClient setup for an ownCloud account
+     * 
+     * Do not call this method from the main thread.
+     * 
+     * @param account                       The ownCloud account
+     * @param appContext                    Android application context
+     * @return                              A OwnCloudClient object ready to be used
+     * @throws AuthenticatorException       If the authenticator failed to get the authorization token for the account.
+     * @throws OperationCanceledException   If the authenticator operation was cancelled while getting the authorization token for the account. 
+     * @throws IOException                  If there was some I/O error while getting the authorization token for the account.
+     * @throws AccountNotFoundException     If 'account' is unknown for the AccountManager
+     */
+    public static OwnCloudClient createOwnCloudClient (Account account, Context appContext) throws OperationCanceledException, AuthenticatorException, IOException, AccountNotFoundException {
+        //Log_OC.d(TAG, "Creating OwnCloudClient associated to " + account.name);
+       
+        Uri webdavUri = Uri.parse(AccountUtils.constructFullURLForAccount(appContext, account));
+        Uri uri = Uri.parse(AccountUtils.constructBasicURLForAccount(appContext, account));
+        AccountManager am = AccountManager.get(appContext);
+        boolean isOauth2 = am.getUserData(account, AccountUtils.Constants.KEY_SUPPORTS_OAUTH2) != null;   // TODO avoid calling to getUserData here
+        boolean isSamlSso = am.getUserData(account, AccountUtils.Constants.KEY_SUPPORTS_SAML_WEB_SSO) != null;
+        OwnCloudClient client = createOwnCloudClient(webdavUri, appContext, !isSamlSso);
+        client.setBaseUri(uri);
+        
+        if (isOauth2) {    
+            String accessToken = am.blockingGetAuthToken(account, AccountTypeUtils.getAuthTokenTypeAccessToken(account.type), false);
+            client.setBearerCredentials(accessToken);   // TODO not assume that the access token is a bearer token
+        
+        } else if (isSamlSso) {    // TODO avoid a call to getUserData here
+            String accessToken = am.blockingGetAuthToken(account, AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(account.type), false);
+            client.setSsoSessionCookie(accessToken);
+            
+        } else {
+            String username = account.name.substring(0, account.name.lastIndexOf('@'));
+            //String password = am.getPassword(account);
+            String password = am.blockingGetAuthToken(account, AccountTypeUtils.getAuthTokenTypePass(account.type), false);
+            client.setBasicCredentials(username, password);
+        }
+        
+        return client;
+    }
+    
+    
+    public static OwnCloudClient createOwnCloudClient (Account account, Context appContext, Activity currentActivity) throws OperationCanceledException, AuthenticatorException, IOException, AccountNotFoundException {
+        Uri webdavUri = Uri.parse(AccountUtils.constructFullURLForAccount(appContext, account));
+        Uri uri = Uri.parse(AccountUtils.constructBasicURLForAccount(appContext, account));
+        AccountManager am = AccountManager.get(appContext);
+        boolean isOauth2 = am.getUserData(account, AccountUtils.Constants.KEY_SUPPORTS_OAUTH2) != null;   // TODO avoid calling to getUserData here
+        boolean isSamlSso = am.getUserData(account, AccountUtils.Constants.KEY_SUPPORTS_SAML_WEB_SSO) != null;
+        OwnCloudClient client = createOwnCloudClient(webdavUri, appContext, !isSamlSso);
+        client.setBaseUri(uri);
+        
+        if (isOauth2) {    // TODO avoid a call to getUserData here
+            AccountManagerFuture<Bundle> future =  am.getAuthToken(account,  AccountTypeUtils.getAuthTokenTypeAccessToken(account.type), null, currentActivity, null, null);
+            Bundle result = future.getResult();
+            String accessToken = result.getString(AccountManager.KEY_AUTHTOKEN);
+            if (accessToken == null) throw new AuthenticatorException("WTF!");
+            client.setBearerCredentials(accessToken);   // TODO not assume that the access token is a bearer token
+
+        } else if (isSamlSso) {    // TODO avoid a call to getUserData here
+            AccountManagerFuture<Bundle> future =  am.getAuthToken(account, AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(account.type), null, currentActivity, null, null);
+            Bundle result = future.getResult();
+            String accessToken = result.getString(AccountManager.KEY_AUTHTOKEN);
+            if (accessToken == null) throw new AuthenticatorException("WTF!");
+            client.setSsoSessionCookie(accessToken);
+
+        } else {
+            String username = account.name.substring(0, account.name.lastIndexOf('@'));
+            //String password = am.getPassword(account);
+            //String password = am.blockingGetAuthToken(account, MainApp.getAuthTokenTypePass(), false);
+            AccountManagerFuture<Bundle> future =  am.getAuthToken(account,  AccountTypeUtils.getAuthTokenTypePass(account.type), null, currentActivity, null, null);
+            Bundle result = future.getResult();
+            String password = result.getString(AccountManager.KEY_AUTHTOKEN);
+            client.setBasicCredentials(username, password);
+        }
+        
+        return client;
+    }
+    
+    /**
+     * Creates a OwnCloudClient to access a URL and sets the desired parameters for ownCloud client connections.
+     * 
+     * @param uri       URL to the ownCloud server
+     * @param context   Android context where the OwnCloudClient is being created.
+     * @return          A OwnCloudClient object ready to be used
+     */
+    public static OwnCloudClient createOwnCloudClient(Uri uri, Context context, boolean followRedirects) {
+        try {
+            NetworkUtils.registerAdvancedSslContext(true, context);
+        }  catch (GeneralSecurityException e) {
+            Log.e(TAG, "Advanced SSL Context could not be loaded. Default SSL management in the system will be used for HTTPS connections", e);
+            
+        } catch (IOException e) {
+            Log.e(TAG, "The local server truststore could not be read. Default SSL management in the system will be used for HTTPS connections", e);
+        }
+        
+        OwnCloudClient client = new OwnCloudClient(NetworkUtils.getMultiThreadedConnManager());
+        
+        client.setDefaultTimeouts(DEFAULT_DATA_TIMEOUT, DEFAULT_CONNECTION_TIMEOUT);
+        client.setWebdavUri(uri);
+        client.setFollowRedirects(followRedirects);
+        
+        return client;
+    }
+    
+    
+}

src/com/owncloud/android/lib/common/accounts/AccountTypeUtils.java

@@ -0,0 +1,50 @@
+/* ownCloud Android Library is available under MIT license
+ *   Copyright (C) 2014 ownCloud (http://www.owncloud.org/)
+ *   Copyright (C) 2012  Bartek Przybylski
+ *   
+ *   Permission is hereby granted, free of charge, to any person obtaining a copy
+ *   of this software and associated documentation files (the "Software"), to deal
+ *   in the Software without restriction, including without limitation the rights
+ *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *   copies of the Software, and to permit persons to whom the Software is
+ *   furnished to do so, subject to the following conditions:
+ *   
+ *   The above copyright notice and this permission notice shall be included in
+ *   all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 
+ *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 
+ *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
+ *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ *   THE SOFTWARE.
+ *
+ */
+
+package com.owncloud.android.lib.common.accounts;
+
+/**
+ * @author masensio
+ * @author David A. Velasco
+ */
+public class AccountTypeUtils {
+
+    public static String getAuthTokenTypePass(String accountType) {
+        return accountType + ".password";
+    }
+    
+    public static String getAuthTokenTypeAccessToken(String accountType) {
+        return accountType  + ".oauth2.access_token";
+    }
+    
+    public static String getAuthTokenTypeRefreshToken(String accountType) {
+        return accountType  + ".oauth2.refresh_token";
+    }
+    
+    public static String getAuthTokenTypeSamlSessionCookie(String accountType) {
+        return accountType  +  ".saml.web_sso.session_cookie";
+    }
+    
+}

src/com/owncloud/android/lib/common/accounts/AccountUtils.java

@@ -0,0 +1,164 @@
+/* ownCloud Android Library is available under MIT license
+ *   Copyright (C) 2014 ownCloud (http://www.owncloud.org/)
+ *   Copyright (C) 2012  Bartek Przybylski
+ *   
+ *   Permission is hereby granted, free of charge, to any person obtaining a copy
+ *   of this software and associated documentation files (the "Software"), to deal
+ *   in the Software without restriction, including without limitation the rights
+ *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *   copies of the Software, and to permit persons to whom the Software is
+ *   furnished to do so, subject to the following conditions:
+ *   
+ *   The above copyright notice and this permission notice shall be included in
+ *   all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 
+ *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 
+ *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
+ *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ *   THE SOFTWARE.
+ *
+ */
+
+package com.owncloud.android.lib.common.accounts;
+
+import com.owncloud.android.lib.resources.status.OwnCloudVersion;
+
+import android.accounts.Account;
+import android.accounts.AccountManager;
+import android.accounts.AccountsException;
+import android.content.Context;
+
+public class AccountUtils {
+    public static final String WEBDAV_PATH_1_2 = "/webdav/owncloud.php";
+    public static final String WEBDAV_PATH_2_0 = "/files/webdav.php";
+    public static final String WEBDAV_PATH_4_0 = "/remote.php/webdav";
+    private static final String ODAV_PATH = "/remote.php/odav";
+    private static final String SAML_SSO_PATH = "/remote.php/webdav";
+    public static final String CARDDAV_PATH_2_0 = "/apps/contacts/carddav.php";
+    public static final String CARDDAV_PATH_4_0 = "/remote/carddav.php";
+    public static final String STATUS_PATH = "/status.php";
+
+    /**
+     * Returns the proper URL path to access the WebDAV interface of an ownCloud server,
+     * according to its version and the authorization method used.
+     * 
+     * @param	version         	Version of ownCloud server.
+     * @param 	supportsOAuth		If true, access with OAuth 2 authorization is considered. 
+     * @param 	supportsSamlSso		If true, and supportsOAuth is false, access with SAML-based single-sign-on is considered.
+     * @return 						WebDAV path for given OC version, null if OC version unknown
+     */
+    public static String getWebdavPath(OwnCloudVersion version, boolean supportsOAuth, boolean supportsSamlSso) {
+        if (version != null) {
+            if (supportsOAuth) {
+                return ODAV_PATH;
+            }
+            if (supportsSamlSso) {
+                return SAML_SSO_PATH;
+            }
+            if (version.compareTo(OwnCloudVersion.owncloud_v4) >= 0)
+                return WEBDAV_PATH_4_0;
+            if (version.compareTo(OwnCloudVersion.owncloud_v3) >= 0
+                    || version.compareTo(OwnCloudVersion.owncloud_v2) >= 0)
+                return WEBDAV_PATH_2_0;
+            if (version.compareTo(OwnCloudVersion.owncloud_v1) >= 0)
+                return WEBDAV_PATH_1_2;
+        }
+        return null;
+    }
+    
+    /**
+     * Constructs full url to host and webdav resource basing on host version
+     * @param context
+     * @param account
+     * @return url or null on failure
+     * @throws AccountNotFoundException     When 'account' is unknown for the AccountManager
+     */
+    public static String constructFullURLForAccount(Context context, Account account) throws AccountNotFoundException {
+        AccountManager ama = AccountManager.get(context);
+        String baseurl = ama.getUserData(account, Constants.KEY_OC_BASE_URL);
+        String strver  = ama.getUserData(account, Constants.KEY_OC_VERSION);
+        boolean supportsOAuth = (ama.getUserData(account, Constants.KEY_SUPPORTS_OAUTH2) != null);
+        boolean supportsSamlSso = (ama.getUserData(account, Constants.KEY_SUPPORTS_SAML_WEB_SSO) != null);
+        OwnCloudVersion ver = new OwnCloudVersion(strver);
+        String webdavpath = getWebdavPath(ver, supportsOAuth, supportsSamlSso);
+
+        if (baseurl == null || webdavpath == null) 
+            throw new AccountNotFoundException(account, "Account not found", null);
+        
+        return baseurl + webdavpath;
+    }
+    
+    /**
+     * Extracts url server from the account
+     * @param context
+     * @param account
+     * @return url server or null on failure
+     * @throws AccountNotFoundException     When 'account' is unknown for the AccountManager
+     */
+    public static String constructBasicURLForAccount(Context context, Account account) throws AccountNotFoundException {
+        AccountManager ama = AccountManager.get(context);
+        String baseurl = ama.getUserData(account, Constants.KEY_OC_BASE_URL);
+        
+        if (baseurl == null ) 
+            throw new AccountNotFoundException(account, "Account not found", null);
+        
+        return baseurl;
+    }
+    
+    
+    public static class AccountNotFoundException extends AccountsException {
+        
+		/** Generated - should be refreshed every time the class changes!! */
+		private static final long serialVersionUID = -1684392454798508693L;
+        
+        private Account mFailedAccount; 
+                
+        public AccountNotFoundException(Account failedAccount, String message, Throwable cause) {
+            super(message, cause);
+            mFailedAccount = failedAccount;
+        }
+        
+        public Account getFailedAccount() {
+            return mFailedAccount;
+        }
+    }
+
+
+	public static class Constants {
+	    /**
+	     * Value under this key should handle path to webdav php script. Will be
+	     * removed and usage should be replaced by combining
+	     * {@link com.owncloud.android.authentication.AuthenticatorActivity.KEY_OC_BASE_URL} and
+	     * {@link com.owncloud.android.lib.resources.status.utils.OwnCloudVersion}
+	     * 
+	     * @deprecated
+	     */
+	    public static final String KEY_OC_URL = "oc_url";
+	    /**
+	     * Version should be 3 numbers separated by dot so it can be parsed by
+	     * {@link com.owncloud.android.lib.resources.status.utils.OwnCloudVersion}
+	     */
+	    public static final String KEY_OC_VERSION = "oc_version";
+	    /**
+	     * Base url should point to owncloud installation without trailing / ie:
+	     * http://server/path or https://owncloud.server
+	     */
+	    public static final String KEY_OC_BASE_URL = "oc_base_url";
+	    /**
+	     * Flag signaling if the ownCloud server can be accessed with OAuth2 access tokens.
+	     */
+	    public static final String KEY_SUPPORTS_OAUTH2 = "oc_supports_oauth2";
+	    /**
+	     * Flag signaling if the ownCloud server can be accessed with session cookies from SAML-based web single-sign-on.
+	     */
+	    public static final String KEY_SUPPORTS_SAML_WEB_SSO = "oc_supports_saml_web_sso";
+	    /**
+	    * Flag signaling if the ownCloud server supports Share API"
+	    */
+	    public static final String KEY_SUPPORTS_SHARE_API = "oc_supports_share_api";
+	}
+}

src/com/owncloud/android/lib/common/network/AdvancedSslSocketFactory.java

@@ -0,0 +1,296 @@
+/* ownCloud Android Library is available under MIT license
+ *   Copyright (C) 2014 ownCloud (http://www.owncloud.org/)
+ *   Copyright (C) 2012  Bartek Przybylski
+ *   
+ *   Permission is hereby granted, free of charge, to any person obtaining a copy
+ *   of this software and associated documentation files (the "Software"), to deal
+ *   in the Software without restriction, including without limitation the rights
+ *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *   copies of the Software, and to permit persons to whom the Software is
+ *   furnished to do so, subject to the following conditions:
+ *   
+ *   The above copyright notice and this permission notice shall be included in
+ *   all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 
+ *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 
+ *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
+ *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ *   THE SOFTWARE.
+ *
+ */
+
+package com.owncloud.android.lib.common.network;
+
+import java.io.IOException;
+import java.net.InetAddress;
+import java.net.InetSocketAddress;
+import java.net.Socket;
+import java.net.SocketAddress;
+import java.net.UnknownHostException;
+//import java.security.Provider;
+import java.security.cert.X509Certificate;
+//import java.util.Enumeration;
+
+import javax.net.SocketFactory;
+import javax.net.ssl.SSLContext;
+import javax.net.ssl.SSLException;
+import javax.net.ssl.SSLHandshakeException;
+//import javax.net.ssl.SSLParameters;
+import javax.net.ssl.SSLPeerUnverifiedException;
+import javax.net.ssl.SSLSession;
+import javax.net.ssl.SSLSocket;
+
+import org.apache.commons.httpclient.ConnectTimeoutException;
+import org.apache.commons.httpclient.params.HttpConnectionParams;
+import org.apache.commons.httpclient.protocol.ProtocolSocketFactory;
+import org.apache.http.conn.ssl.X509HostnameVerifier;
+
+//import android.os.Build;
+import android.util.Log;
+
+
+
+/**
+ * AdvancedSSLProtocolSocketFactory allows to create SSL {@link Socket}s with 
+ * a custom SSLContext and an optional Hostname Verifier.
+ * 
+ * @author David A. Velasco
+ */
+
+public class AdvancedSslSocketFactory implements ProtocolSocketFactory {
+
+    private static final String TAG = AdvancedSslSocketFactory.class.getSimpleName();
+    
+    private SSLContext mSslContext = null;
+    private AdvancedX509TrustManager mTrustManager = null;
+    private X509HostnameVerifier mHostnameVerifier = null;
+
+    public SSLContext getSslContext() {
+        return mSslContext;
+    }
+    
+    /**
+     * Constructor for AdvancedSSLProtocolSocketFactory.
+     */
+    public AdvancedSslSocketFactory(SSLContext sslContext, AdvancedX509TrustManager trustManager, X509HostnameVerifier hostnameVerifier) {
+        if (sslContext == null)
+            throw new IllegalArgumentException("AdvancedSslSocketFactory can not be created with a null SSLContext");
+        if (trustManager == null)
+            throw new IllegalArgumentException("AdvancedSslSocketFactory can not be created with a null Trust Manager");
+        mSslContext = sslContext;
+        mTrustManager = trustManager;
+        mHostnameVerifier = hostnameVerifier;
+    }
+
+    /**
+     * @see ProtocolSocketFactory#createSocket(java.lang.String,int,java.net.InetAddress,int)
+     */
+    public Socket createSocket(String host, int port, InetAddress clientHost, int clientPort) throws IOException, UnknownHostException {
+        Socket socket = mSslContext.getSocketFactory().createSocket(host, port, clientHost, clientPort);
+        verifyPeerIdentity(host, port, socket);
+        return socket;
+    }
+
+    /*
+    private void logSslInfo() {
+    	if (Build.VERSION.SDK_INT > Build.VERSION_CODES.FROYO) {
+	    	Log.v(TAG, "SUPPORTED SSL PARAMETERS");
+	    	logSslParameters(mSslContext.getSupportedSSLParameters());
+	    	Log.v(TAG, "DEFAULT SSL PARAMETERS");
+	    	logSslParameters(mSslContext.getDefaultSSLParameters());
+	    	Log.i(TAG, "CURRENT PARAMETERS");
+	    	Log.i(TAG, "Protocol: " + mSslContext.getProtocol());
+    	}
+    	Log.i(TAG, "PROVIDER");
+    	logSecurityProvider(mSslContext.getProvider());
+	}
+    
+    private void logSecurityProvider(Provider provider) {
+    	Log.i(TAG, "name: " + provider.getName());
+    	Log.i(TAG, "version: " + provider.getVersion());
+    	Log.i(TAG, "info: " + provider.getInfo());
+    	Enumeration<?> keys = provider.propertyNames();
+    	String key;
+    	while (keys.hasMoreElements()) {
+    		key = (String) keys.nextElement();
+        	Log.i(TAG, "  property " + key + " : " + provider.getProperty(key));
+    	}
+	}
+
+	private void logSslParameters(SSLParameters params) {
+    	Log.v(TAG, "Cipher suites: ");
+    	String [] elements = params.getCipherSuites();
+    	for (int i=0; i<elements.length ; i++) {
+    		Log.v(TAG, "  " + elements[i]);
+    	}
+    	Log.v(TAG, "Protocols: ");
+    	elements = params.getProtocols();
+    	for (int i=0; i<elements.length ; i++) {
+    		Log.v(TAG, "  " + elements[i]);
+    	}
+	}
+	*/
+
+	/**
+     * Attempts to get a new socket connection to the given host within the
+     * given time limit.
+     * 
+     * @param host the host name/IP
+     * @param port the port on the host
+     * @param clientHost the local host name/IP to bind the socket to
+     * @param clientPort the port on the local machine
+     * @param params {@link HttpConnectionParams Http connection parameters}
+     * 
+     * @return Socket a new socket
+     * 
+     * @throws IOException if an I/O error occurs while creating the socket
+     * @throws UnknownHostException if the IP address of the host cannot be
+     *             determined
+     */
+    public Socket createSocket(final String host, final int port,
+            final InetAddress localAddress, final int localPort,
+            final HttpConnectionParams params) throws IOException,
+            UnknownHostException, ConnectTimeoutException {
+        Log.d(TAG, "Creating SSL Socket with remote " + host + ":" + port + ", local " + localAddress + ":" + localPort + ", params: " + params);
+        if (params == null) {
+            throw new IllegalArgumentException("Parameters may not be null");
+        } 
+        int timeout = params.getConnectionTimeout();
+        
+        //logSslInfo();
+        
+        SocketFactory socketfactory = mSslContext.getSocketFactory();
+        Log.d(TAG, " ... with connection timeout " + timeout + " and socket timeout " + params.getSoTimeout());
+        Socket socket = socketfactory.createSocket();
+        SocketAddress localaddr = new InetSocketAddress(localAddress, localPort);
+        SocketAddress remoteaddr = new InetSocketAddress(host, port);
+        socket.setSoTimeout(params.getSoTimeout());
+        socket.bind(localaddr);
+        ServerNameIndicator.setServerNameIndication(host, (SSLSocket)socket);
+        socket.connect(remoteaddr, timeout);
+        verifyPeerIdentity(host, port, socket);
+        return socket;
+    }
+
+	/**
+     * @see ProtocolSocketFactory#createSocket(java.lang.String,int)
+     */
+    public Socket createSocket(String host, int port) throws IOException,
+            UnknownHostException {
+    	Log.d(TAG, "Creating SSL Socket with remote " + host + ":" + port);
+        Socket socket = mSslContext.getSocketFactory().createSocket(host, port);
+        verifyPeerIdentity(host, port, socket);
+        return socket; 
+    }
+
+    public boolean equals(Object obj) {
+        return ((obj != null) && obj.getClass().equals(
+                AdvancedSslSocketFactory.class));
+    }
+
+    public int hashCode() {
+        return AdvancedSslSocketFactory.class.hashCode();
+    }
+
+
+    public X509HostnameVerifier getHostNameVerifier() {
+        return mHostnameVerifier;
+    }
+    
+    
+    public void setHostNameVerifier(X509HostnameVerifier hostnameVerifier) {
+        mHostnameVerifier = hostnameVerifier;
+    }
+    
+    /**
+     * Verifies the identity of the server. 
+     * 
+     * The server certificate is verified first.
+     * 
+     * Then, the host name is compared with the content of the server certificate using the current host name verifier, if any.
+     * @param socket
+     */
+    private void verifyPeerIdentity(String host, int port, Socket socket) throws IOException {
+        try {
+            CertificateCombinedException failInHandshake = null;
+            /// 1. VERIFY THE SERVER CERTIFICATE through the registered TrustManager (that should be an instance of AdvancedX509TrustManager) 
+            try {
+                SSLSocket sock = (SSLSocket) socket;    // a new SSLSession instance is created as a "side effect" 
+                sock.startHandshake();
+                
+            } catch (RuntimeException e) {
+                
+                if (e instanceof CertificateCombinedException) {
+                    failInHandshake = (CertificateCombinedException) e;
+                } else {
+                    Throwable cause = e.getCause();
+                    Throwable previousCause = null;
+                    while (cause != null && cause != previousCause && !(cause instanceof CertificateCombinedException)) {
+                        previousCause = cause;
+                        cause = cause.getCause();
+                    }
+                    if (cause != null && cause instanceof CertificateCombinedException) {
+                        failInHandshake = (CertificateCombinedException)cause;
+                    }
+                }
+                if (failInHandshake == null) {
+                    throw e;
+                }
+                failInHandshake.setHostInUrl(host);
+                
+            }
+            
+            /// 2. VERIFY HOSTNAME
+            SSLSession newSession = null;
+            boolean verifiedHostname = true;
+            if (mHostnameVerifier != null) {
+                if (failInHandshake != null) {
+                    /// 2.1 : a new SSLSession instance was NOT created in the handshake
+                    X509Certificate serverCert = failInHandshake.getServerCertificate();
+                    try {
+                        mHostnameVerifier.verify(host, serverCert);
+                    } catch (SSLException e) {
+                        verifiedHostname = false;
+                    }
+                
+                } else {
+                    /// 2.2 : a new SSLSession instance was created in the handshake
+                    newSession = ((SSLSocket)socket).getSession();
+                    if (!mTrustManager.isKnownServer((X509Certificate)(newSession.getPeerCertificates()[0]))) {
+                        verifiedHostname = mHostnameVerifier.verify(host, newSession); 
+                    }
+                }
+            }
+
+            /// 3. Combine the exceptions to throw, if any
+            if (!verifiedHostname) {
+                SSLPeerUnverifiedException pue = new SSLPeerUnverifiedException("Names in the server certificate do not match to " + host + " in the URL");
+                if (failInHandshake == null) {
+                    failInHandshake = new CertificateCombinedException((X509Certificate) newSession.getPeerCertificates()[0]);
+                    failInHandshake.setHostInUrl(host);
+                }
+                failInHandshake.setSslPeerUnverifiedException(pue);
+                pue.initCause(failInHandshake);
+                throw pue;
+                
+            } else if (failInHandshake != null) {
+                SSLHandshakeException hse = new SSLHandshakeException("Server certificate could not be verified");
+                hse.initCause(failInHandshake);
+                throw hse;
+            }
+            
+        } catch (IOException io) {        
+            try {
+                socket.close();
+            } catch (Exception x) {
+                // NOTHING - irrelevant exception for the caller 
+            }
+            throw io;
+        }
+    }
+    
+}

src/com/owncloud/android/lib/common/network/AdvancedX509TrustManager.java

@@ -0,0 +1,155 @@
+/* ownCloud Android Library is available under MIT license
+ *   Copyright (C) 2014 ownCloud (http://www.owncloud.org/)
+ *   
+ *   Permission is hereby granted, free of charge, to any person obtaining a copy
+ *   of this software and associated documentation files (the "Software"), to deal
+ *   in the Software without restriction, including without limitation the rights
+ *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *   copies of the Software, and to permit persons to whom the Software is
+ *   furnished to do so, subject to the following conditions:
+ *   
+ *   The above copyright notice and this permission notice shall be included in
+ *   all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 
+ *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 
+ *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
+ *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ *   THE SOFTWARE.
+ *
+ */
+
+package com.owncloud.android.lib.common.network;
+
+import java.security.KeyStore;
+import java.security.KeyStoreException;
+import java.security.NoSuchAlgorithmException;
+import java.security.cert.CertPathValidatorException;
+import java.security.cert.CertStoreException;
+import java.security.cert.CertificateException;
+import java.security.cert.CertificateExpiredException;
+import java.security.cert.CertificateNotYetValidException;
+import java.security.cert.X509Certificate;
+
+import javax.net.ssl.TrustManager;
+import javax.net.ssl.TrustManagerFactory;
+import javax.net.ssl.X509TrustManager;
+
+import android.util.Log;
+
+
+
+/**
+ * @author David A. Velasco
+ */
+public class AdvancedX509TrustManager implements X509TrustManager {
+    
+    private static final String TAG = AdvancedX509TrustManager.class.getSimpleName();
+
+    private X509TrustManager mStandardTrustManager = null;
+    private KeyStore mKnownServersKeyStore;
+
+    /**
+     * Constructor for AdvancedX509TrustManager
+     * 
+     * @param  knownServersCertStore    Local certificates store with server certificates explicitly trusted by the user.
+     * @throws CertStoreException       When no default X509TrustManager instance was found in the system.
+     */
+    public AdvancedX509TrustManager(KeyStore knownServersKeyStore)
+            throws NoSuchAlgorithmException, KeyStoreException, CertStoreException {
+        super();
+        TrustManagerFactory factory = TrustManagerFactory
+                .getInstance(TrustManagerFactory.getDefaultAlgorithm());
+        factory.init((KeyStore)null);
+        mStandardTrustManager = findX509TrustManager(factory);
+
+        mKnownServersKeyStore = knownServersKeyStore;
+    }
+    
+    
+    /**
+     * Locates the first X509TrustManager provided by a given TrustManagerFactory
+     * @param factory               TrustManagerFactory to inspect in the search for a X509TrustManager
+     * @return                      The first X509TrustManager found in factory.
+     * @throws CertStoreException   When no X509TrustManager instance was found in factory
+     */
+    private X509TrustManager findX509TrustManager(TrustManagerFactory factory) throws CertStoreException {
+        TrustManager tms[] = factory.getTrustManagers();
+        for (int i = 0; i < tms.length; i++) {
+            if (tms[i] instanceof X509TrustManager) {
+                return (X509TrustManager) tms[i];
+            }
+        }
+        return null;
+    }
+    
+
+    /**
+     * @see javax.net.ssl.X509TrustManager#checkClientTrusted(X509Certificate[],
+     *      String authType)
+     */
+    public void checkClientTrusted(X509Certificate[] certificates, String authType) throws CertificateException {
+        mStandardTrustManager.checkClientTrusted(certificates, authType);
+    }
+
+    
+    /**
+     * @see javax.net.ssl.X509TrustManager#checkServerTrusted(X509Certificate[],
+     *      String authType)
+     */
+    public void checkServerTrusted(X509Certificate[] certificates, String authType) throws CertificateException {
+        if (!isKnownServer(certificates[0])) {
+        	CertificateCombinedException result = new CertificateCombinedException(certificates[0]);
+        	try {
+        		certificates[0].checkValidity();
+        	} catch (CertificateExpiredException c) {
+        		result.setCertificateExpiredException(c);
+        		
+        	} catch (CertificateNotYetValidException c) {
+                result.setCertificateNotYetException(c);
+        	}
+        	
+        	try {
+        	    mStandardTrustManager.checkServerTrusted(certificates, authType);
+        	} catch (CertificateException c) {
+                Throwable cause = c.getCause();
+                Throwable previousCause = null;
+                while (cause != null && cause != previousCause && !(cause instanceof CertPathValidatorException)) {     // getCause() is not funny
+                    previousCause = cause;
+                    cause = cause.getCause();
+                }
+                if (cause != null && cause instanceof CertPathValidatorException) {
+                	result.setCertPathValidatorException((CertPathValidatorException)cause);
+                } else {
+                	result.setOtherCertificateException(c);
+                }
+        	}
+        	
+        	if (result.isException())
+        		throw result;
+
+        }
+    }
+    
+    
+    /**
+     * @see javax.net.ssl.X509TrustManager#getAcceptedIssuers()
+     */
+    public X509Certificate[] getAcceptedIssuers() {
+        return mStandardTrustManager.getAcceptedIssuers();
+    }
+
+    
+    public boolean isKnownServer(X509Certificate cert) {
+        try {
+            return (mKnownServersKeyStore.getCertificateAlias(cert) != null);
+        } catch (KeyStoreException e) {
+            Log.d(TAG, "Fail while checking certificate in the known-servers store");
+            return false;
+        }
+    }
+    
+}

src/com/owncloud/android/lib/common/network/BearerAuthScheme.java

@@ -0,0 +1,278 @@
+/* ownCloud Android Library is available under MIT license
+ *   Copyright (C) 2014 ownCloud (http://www.owncloud.org/)
+ *   
+ *   Permission is hereby granted, free of charge, to any person obtaining a copy
+ *   of this software and associated documentation files (the "Software"), to deal
+ *   in the Software without restriction, including without limitation the rights
+ *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *   copies of the Software, and to permit persons to whom the Software is
+ *   furnished to do so, subject to the following conditions:
+ *   
+ *   The above copyright notice and this permission notice shall be included in
+ *   all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 
+ *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 
+ *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
+ *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ *   THE SOFTWARE.
+ *
+ */
+
+package com.owncloud.android.lib.common.network;
+
+import java.util.Map;
+
+import org.apache.commons.httpclient.Credentials;
+import org.apache.commons.httpclient.HttpMethod;
+import org.apache.commons.httpclient.auth.AuthChallengeParser;
+import org.apache.commons.httpclient.auth.AuthScheme;
+import org.apache.commons.httpclient.auth.AuthenticationException;
+import org.apache.commons.httpclient.auth.InvalidCredentialsException;
+import org.apache.commons.httpclient.auth.MalformedChallengeException;
+
+import android.util.Log;
+
+
+
+/**
+ * Bearer authentication scheme as defined in RFC 6750.
+ * 
+ * @author David A. Velasco
+ */
+
+public class BearerAuthScheme implements AuthScheme /*extends RFC2617Scheme*/ {
+    
+    private static final String TAG = BearerAuthScheme.class.getSimpleName();
+
+    public static final String AUTH_POLICY = "Bearer";
+    
+    /** Whether the bearer authentication process is complete */
+    private boolean mComplete;
+    
+    /** Authentication parameter map */
+    @SuppressWarnings("rawtypes")
+	private Map mParams = null;
+    
+    
+    /**
+     * Default constructor for the bearer authentication scheme.
+     */
+    public BearerAuthScheme() {
+        mComplete = false;
+    }
+
+    /**
+     * Constructor for the basic authentication scheme.
+     * 
+     * @param   challenge                       Authentication challenge
+     * 
+     * @throws  MalformedChallengeException     Thrown if the authentication challenge is malformed
+     * 
+     * @deprecated Use parameterless constructor and {@link AuthScheme#processChallenge(String)} method
+     */
+    public BearerAuthScheme(final String challenge) throws MalformedChallengeException {
+        processChallenge(challenge);
+        mComplete = true;
+    }
+
+    /**
+     * Returns textual designation of the bearer authentication scheme.
+     * 
+     * @return "Bearer"
+     */
+    public String getSchemeName() {
+        return "bearer";
+    }
+
+    /**
+     * Processes the Bearer challenge.
+     *  
+     * @param   challenge                   The challenge string
+     * 
+     * @throws MalformedChallengeException  Thrown if the authentication challenge is malformed
+     */
+    public void processChallenge(String challenge) throws MalformedChallengeException {
+        String s = AuthChallengeParser.extractScheme(challenge);
+        if (!s.equalsIgnoreCase(getSchemeName())) {
+            throw new MalformedChallengeException(
+              "Invalid " + getSchemeName() + " challenge: " + challenge); 
+        }
+        mParams = AuthChallengeParser.extractParams(challenge);
+        mComplete = true;
+    }
+
+    /**
+     * Tests if the Bearer authentication process has been completed.
+     * 
+     * @return 'true' if Bearer authorization has been processed, 'false' otherwise.
+     */
+    public boolean isComplete() {
+        return this.mComplete;
+    }
+
+    /**
+     * Produces bearer authorization string for the given set of 
+     * {@link Credentials}.
+     * 
+     * @param   credentials                     The set of credentials to be used for authentication
+     * @param   method                          Method name is ignored by the bearer authentication scheme
+     * @param   uri                             URI is ignored by the bearer authentication scheme
+     * @throws  InvalidCredentialsException     If authentication credentials are not valid or not applicable 
+     *                                          for this authentication scheme
+     * @throws  AuthenticationException         If authorization string cannot be generated due to an authentication failure
+     * @return  A bearer authorization string
+     * 
+     * @deprecated Use {@link #authenticate(Credentials, HttpMethod)}
+     */
+    public String authenticate(Credentials credentials, String method, String uri) throws AuthenticationException {
+        Log.d(TAG, "enter BearerScheme.authenticate(Credentials, String, String)");
+
+        BearerCredentials bearer = null;
+        try {
+            bearer = (BearerCredentials) credentials;
+        } catch (ClassCastException e) {
+            throw new InvalidCredentialsException(
+             "Credentials cannot be used for bearer authentication: " 
+              + credentials.getClass().getName());
+        }
+        return BearerAuthScheme.authenticate(bearer);
+    }
+
+    
+    /**
+     * Returns 'false'. Bearer authentication scheme is request based.
+     * 
+     * @return 'false'.
+     */
+    public boolean isConnectionBased() {
+        return false;    
+    }
+
+    /**
+     * Produces bearer authorization string for the given set of {@link Credentials}.
+     * 
+     * @param   credentials                     The set of credentials to be used for authentication
+     * @param   method                          The method being authenticated
+     * @throws  InvalidCredentialsException     If authentication credentials are not valid or not applicable for this authentication 
+     *                                          scheme.
+     * @throws AuthenticationException         If authorization string cannot be generated due to an authentication failure.
+     * 
+     * @return a basic authorization string
+     */
+    public String authenticate(Credentials credentials, HttpMethod method) throws AuthenticationException {
+        Log.d(TAG, "enter BearerScheme.authenticate(Credentials, HttpMethod)");
+
+        if (method == null) {
+            throw new IllegalArgumentException("Method may not be null");
+        }
+        BearerCredentials bearer = null;
+        try {
+            bearer = (BearerCredentials) credentials;
+        } catch (ClassCastException e) {
+            throw new InvalidCredentialsException(
+                    "Credentials cannot be used for bearer authentication: " 
+                    + credentials.getClass().getName());
+        }
+        return BearerAuthScheme.authenticate(
+            bearer, 
+            method.getParams().getCredentialCharset());
+    }
+    
+    /**
+     * @deprecated Use {@link #authenticate(BearerCredentials, String)}
+     * 
+     * Returns a bearer Authorization header value for the given 
+     * {@link BearerCredentials}.
+     * 
+     * @param   credentials     The credentials to encode.
+     * 
+     * @return                  A bearer authorization string
+     */
+    public static String authenticate(BearerCredentials credentials) {
+        return authenticate(credentials, "ISO-8859-1");
+    }
+
+    /**
+     * Returns a bearer Authorization header value for the given 
+     * {@link BearerCredentials} and charset.
+     * 
+     * @param   credentials         The credentials to encode.
+     * @param   charset             The charset to use for encoding the credentials
+     * 
+     * @return                      A bearer authorization string
+     * 
+     * @since 3.0
+     */
+    public static String authenticate(BearerCredentials credentials, String charset) {
+        Log.d(TAG, "enter BearerAuthScheme.authenticate(BearerCredentials, String)");
+
+        if (credentials == null) {
+            throw new IllegalArgumentException("Credentials may not be null"); 
+        }
+        if (charset == null || charset.length() == 0) {
+            throw new IllegalArgumentException("charset may not be null or empty");
+        }
+        StringBuffer buffer = new StringBuffer();
+        buffer.append(credentials.getAccessToken());
+        
+        //return "Bearer " + EncodingUtil.getAsciiString(EncodingUtil.getBytes(buffer.toString(), charset));
+        return "Bearer " + buffer.toString();
+    }
+
+    /**
+     * Returns a String identifying the authentication challenge.  This is
+     * used, in combination with the host and port to determine if
+     * authorization has already been attempted or not.  Schemes which
+     * require multiple requests to complete the authentication should
+     * return a different value for each stage in the request.
+     * 
+     * Additionally, the ID should take into account any changes to the
+     * authentication challenge and return a different value when appropriate.
+     * For example when the realm changes in basic authentication it should be
+     * considered a different authentication attempt and a different value should
+     * be returned.
+     * 
+     * This method simply returns the realm for the challenge.
+     * 
+     * @return String       a String identifying the authentication challenge.
+     * 
+     * @deprecated no longer used
+     */
+    @Override
+    public String getID() {
+        return getRealm();
+    }
+
+    /**
+     * Returns authentication parameter with the given name, if available.
+     * 
+     * @param   name    The name of the parameter to be returned
+     * 
+     * @return          The parameter with the given name
+     */
+    @Override
+    public String getParameter(String name) {
+        if (name == null) {
+            throw new IllegalArgumentException("Parameter name may not be null"); 
+        }
+        if (mParams == null) {
+            return null;
+        }
+        return (String) mParams.get(name.toLowerCase());
+    }
+
+    /**
+     * Returns authentication realm. The realm may not be null.
+     * 
+     * @return  The authentication realm
+     */
+    @Override
+    public String getRealm() {
+        return getParameter("realm");
+    }
+    
+}

src/com/owncloud/android/lib/common/network/BearerCredentials.java

@@ -0,0 +1,104 @@
+/* ownCloud Android Library is available under MIT license
+ *   Copyright (C) 2014 ownCloud (http://www.owncloud.org/)
+ *   
+ *   Permission is hereby granted, free of charge, to any person obtaining a copy
+ *   of this software and associated documentation files (the "Software"), to deal
+ *   in the Software without restriction, including without limitation the rights
+ *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *   copies of the Software, and to permit persons to whom the Software is
+ *   furnished to do so, subject to the following conditions:
+ *   
+ *   The above copyright notice and this permission notice shall be included in
+ *   all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 
+ *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 
+ *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
+ *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ *   THE SOFTWARE.
+ *
+ */
+
+package com.owncloud.android.lib.common.network;
+
+import org.apache.commons.httpclient.Credentials;
+import org.apache.commons.httpclient.util.LangUtils;
+
+/**
+ * Bearer token {@link Credentials}
+ *
+ * @author David A. Velasco
+ */
+public class BearerCredentials implements Credentials {
+
+    
+    private String mAccessToken;
+    
+    
+    /**
+     * The constructor with the bearer token
+     *
+     * @param token     The bearer token
+     */
+    public BearerCredentials(String token) {
+        /*if (token == null) {
+            throw new IllegalArgumentException("Bearer token may not be null");            
+        }*/
+        mAccessToken = (token == null) ? "" : token;
+    }
+
+
+    /**
+     * Returns the access token
+     *
+     * @return      The access token
+     */
+    public String getAccessToken() {
+        return mAccessToken;
+    }
+
+
+    /**
+     * Get this object string.
+     *
+     * @return  The access token
+     */
+    public String toString() {
+        return mAccessToken;
+    }
+
+    /**
+     * Does a hash of the access token.
+     *
+     * @return The hash code of the access token
+     */
+    public int hashCode() {
+        int hash = LangUtils.HASH_SEED;
+        hash = LangUtils.hashCode(hash, mAccessToken);
+        return hash;
+    }
+
+    /**
+     * These credentials are assumed equal if accessToken is the same.
+     *
+     * @param   o   The other object to compare with.
+     *
+     * @return      'True' if the object is equivalent.
+     */
+    public boolean equals(Object o) {
+        if (o == null) return false;
+        if (this == o) return true;
+        if (this.getClass().equals(o.getClass())) {
+            BearerCredentials that = (BearerCredentials) o;
+            if (LangUtils.equals(mAccessToken, that.mAccessToken)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+}
+

src/com/owncloud/android/lib/common/network/CertificateCombinedException.java

@@ -0,0 +1,137 @@
+/* ownCloud Android Library is available under MIT license
+ *   Copyright (C) 2014 ownCloud (http://www.owncloud.org/)
+ *   
+ *   Permission is hereby granted, free of charge, to any person obtaining a copy
+ *   of this software and associated documentation files (the "Software"), to deal
+ *   in the Software without restriction, including without limitation the rights
+ *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *   copies of the Software, and to permit persons to whom the Software is
+ *   furnished to do so, subject to the following conditions:
+ *   
+ *   The above copyright notice and this permission notice shall be included in
+ *   all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 
+ *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 
+ *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
+ *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ *   THE SOFTWARE.
+ *
+ */
+
+package com.owncloud.android.lib.common.network;
+
+import java.security.cert.CertPathValidatorException;
+import java.security.cert.CertificateException;
+import java.security.cert.CertificateExpiredException;
+import java.security.cert.CertificateNotYetValidException;
+import java.security.cert.X509Certificate;
+
+import javax.net.ssl.SSLPeerUnverifiedException;
+
+/**
+ * Exception joining all the problems that {@link AdvancedX509TrustManager} can find in
+ * a certificate chain for a server.
+ * 
+ * This was initially created as an extension of CertificateException, but some
+ * implementations of the SSL socket layer in existing devices are REPLACING the CertificateException
+ * instances thrown by {@link javax.net.ssl.X509TrustManager#checkServerTrusted(X509Certificate[], String)}
+ * with SSLPeerUnverifiedException FORGETTING THE CAUSING EXCEPTION instead of wrapping it. 
+ * 
+ * Due to this, extending RuntimeException is necessary to get that the CertificateCombinedException 
+ * instance reaches {@link AdvancedSslSocketFactory#verifyPeerIdentity}.
+ * 
+ * BE CAREFUL. As a RuntimeException extensions, Java compilers do not require to handle it
+ * in client methods. Be sure to use it only when you know exactly where it will go.
+ * 
+ * @author David A. Velasco
+ */
+public class CertificateCombinedException extends RuntimeException {
+
+    /** Generated - to refresh every time the class changes */
+    private static final long serialVersionUID = -8875782030758554999L;
+    
+    private X509Certificate mServerCert = null;
+    private String mHostInUrl;
+
+    private CertificateExpiredException mCertificateExpiredException = null;
+    private CertificateNotYetValidException mCertificateNotYetValidException = null;
+    private CertPathValidatorException mCertPathValidatorException = null;
+    private CertificateException mOtherCertificateException = null;
+    private SSLPeerUnverifiedException mSslPeerUnverifiedException = null;
+    
+    public CertificateCombinedException(X509Certificate x509Certificate) {
+        mServerCert = x509Certificate;
+    }
+
+    public X509Certificate getServerCertificate() {
+        return mServerCert;
+    }
+
+    public String getHostInUrl() {
+        return mHostInUrl;
+    }
+
+    public void setHostInUrl(String host) {
+        mHostInUrl = host;
+    }
+
+    public CertificateExpiredException getCertificateExpiredException() {
+        return mCertificateExpiredException;
+    }
+
+    public void setCertificateExpiredException(CertificateExpiredException c) {
+        mCertificateExpiredException  = c;
+    }
+
+    public CertificateNotYetValidException getCertificateNotYetValidException() {
+        return mCertificateNotYetValidException;
+    }
+
+    public void setCertificateNotYetException(CertificateNotYetValidException c) {
+        mCertificateNotYetValidException = c;
+    }
+
+    public CertPathValidatorException getCertPathValidatorException() {
+        return mCertPathValidatorException;
+    }
+
+    public void setCertPathValidatorException(CertPathValidatorException c) {
+        mCertPathValidatorException = c;
+    }
+
+    public CertificateException getOtherCertificateException() {
+        return mOtherCertificateException;
+    }
+
+    public void setOtherCertificateException(CertificateException c) {
+        mOtherCertificateException = c;
+    }
+
+    public SSLPeerUnverifiedException getSslPeerUnverifiedException() {
+        return mSslPeerUnverifiedException ; 
+    }
+
+    public void setSslPeerUnverifiedException(SSLPeerUnverifiedException s) {
+        mSslPeerUnverifiedException = s;
+    }
+
+    public boolean isException() {
+        return (mCertificateExpiredException != null ||
+                mCertificateNotYetValidException != null ||
+                mCertPathValidatorException != null ||
+                mOtherCertificateException != null ||
+                mSslPeerUnverifiedException != null);
+    }
+
+    public boolean isRecoverable() {
+        return (mCertificateExpiredException != null ||
+                mCertificateNotYetValidException != null ||
+                mCertPathValidatorException != null ||
+                mSslPeerUnverifiedException != null);
+    }
+
+}

src/com/owncloud/android/lib/common/network/ChunkFromFileChannelRequestEntity.java

@@ -0,0 +1,151 @@
+/* ownCloud Android Library is available under MIT license
+ *   Copyright (C) 2014 ownCloud (http://www.owncloud.org/)
+ *   
+ *   Permission is hereby granted, free of charge, to any person obtaining a copy
+ *   of this software and associated documentation files (the "Software"), to deal
+ *   in the Software without restriction, including without limitation the rights
+ *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *   copies of the Software, and to permit persons to whom the Software is
+ *   furnished to do so, subject to the following conditions:
+ *   
+ *   The above copyright notice and this permission notice shall be included in
+ *   all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 
+ *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 
+ *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
+ *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ *   THE SOFTWARE.
+ *
+ */
+
+package com.owncloud.android.lib.common.network;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.nio.ByteBuffer;
+import java.nio.channels.FileChannel;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Set;
+
+import org.apache.commons.httpclient.methods.RequestEntity;
+
+
+import android.util.Log;
+
+
+/**
+ * A RequestEntity that represents a PIECE of a file.
+ * 
+ * @author David A. Velasco
+ */
+public class ChunkFromFileChannelRequestEntity implements RequestEntity, ProgressiveDataTransferer {
+
+    private static final String TAG = ChunkFromFileChannelRequestEntity.class.getSimpleName();
+    
+    //private final File mFile;
+    private final FileChannel mChannel;
+    private final String mContentType;
+    private final long mChunkSize;
+    private final File mFile;
+    private long mOffset;
+    private long mTransferred;
+    Set<OnDatatransferProgressListener> mDataTransferListeners = new HashSet<OnDatatransferProgressListener>();
+    private ByteBuffer mBuffer = ByteBuffer.allocate(4096);
+
+    public ChunkFromFileChannelRequestEntity(final FileChannel channel, final String contentType, long chunkSize, final File file) {
+        super();
+        if (channel == null) {
+            throw new IllegalArgumentException("File may not be null");
+        }
+        if (chunkSize <= 0) {
+            throw new IllegalArgumentException("Chunk size must be greater than zero");
+        }
+        mChannel = channel;
+        mContentType = contentType;
+        mChunkSize = chunkSize;
+        mFile = file;
+        mOffset = 0;
+        mTransferred = 0;
+    }
+    
+    public void setOffset(long offset) {
+        mOffset = offset;
+    }
+    
+    public long getContentLength() {
+        try {
+            return Math.min(mChunkSize, mChannel.size() - mChannel.position());
+        } catch (IOException e) {
+            return mChunkSize;
+        }
+    }
+
+    public String getContentType() {
+        return mContentType;
+    }
+
+    public boolean isRepeatable() {
+        return true;
+    }
+    
+    @Override
+    public void addDatatransferProgressListener(OnDatatransferProgressListener listener) {
+        synchronized (mDataTransferListeners) {
+            mDataTransferListeners.add(listener);
+        }
+    }
+    
+    @Override
+    public void addDatatransferProgressListeners(Collection<OnDatatransferProgressListener> listeners) {
+        synchronized (mDataTransferListeners) {
+            mDataTransferListeners.addAll(listeners);
+        }
+    }
+    
+    @Override
+    public void removeDatatransferProgressListener(OnDatatransferProgressListener listener) {
+        synchronized (mDataTransferListeners) {
+            mDataTransferListeners.remove(listener);
+        }
+    }
+    
+    
+    public void writeRequest(final OutputStream out) throws IOException {
+        int readCount = 0;
+        Iterator<OnDatatransferProgressListener> it = null;
+        
+       try {
+            mChannel.position(mOffset);
+            long size = mFile.length();
+            if (size == 0) size = -1;
+            long maxCount = Math.min(mOffset + mChunkSize, mChannel.size());
+            while (mChannel.position() < maxCount) {
+                readCount = mChannel.read(mBuffer);
+                out.write(mBuffer.array(), 0, readCount);
+                mBuffer.clear();
+                if (mTransferred < maxCount) {  // condition to avoid accumulate progress for repeated chunks
+                    mTransferred += readCount;
+                }
+                synchronized (mDataTransferListeners) {
+                    it = mDataTransferListeners.iterator();
+                    while (it.hasNext()) {
+                        it.next().onTransferProgress(readCount, mTransferred, size, mFile.getAbsolutePath());
+                    }
+                }
+            }
+            
+        } catch (IOException io) {
+            Log.e(TAG, io.getMessage());
+            throw new RuntimeException("Ugly solution to workaround the default policy of retries when the server falls while uploading ; temporal fix; really", io);   
+            
+        }
+    }
+
+}

src/com/owncloud/android/lib/common/network/FileRequestEntity.java

@@ -0,0 +1,138 @@
+/* ownCloud Android Library is available under MIT license
+ *   Copyright (C) 2014 ownCloud (http://www.owncloud.org/)
+ *   Copyright (C) 2012  Bartek Przybylski
+ *   
+ *   Permission is hereby granted, free of charge, to any person obtaining a copy
+ *   of this software and associated documentation files (the "Software"), to deal
+ *   in the Software without restriction, including without limitation the rights
+ *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *   copies of the Software, and to permit persons to whom the Software is
+ *   furnished to do so, subject to the following conditions:
+ *   
+ *   The above copyright notice and this permission notice shall be included in
+ *   all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 
+ *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 
+ *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
+ *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ *   THE SOFTWARE.
+ *
+ */
+
+package com.owncloud.android.lib.common.network;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.RandomAccessFile;
+import java.nio.ByteBuffer;
+import java.nio.channels.FileChannel;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Set;
+
+import org.apache.commons.httpclient.methods.RequestEntity;
+
+import android.util.Log;
+
+
+
+/**
+ * A RequestEntity that represents a File.
+ * 
+ */
+public class FileRequestEntity implements RequestEntity, ProgressiveDataTransferer {
+
+    final File mFile;
+    final String mContentType;
+    Set<OnDatatransferProgressListener> mDataTransferListeners = new HashSet<OnDatatransferProgressListener>();
+
+    public FileRequestEntity(final File file, final String contentType) {
+        super();
+        this.mFile = file;
+        this.mContentType = contentType;
+        if (file == null) {
+            throw new IllegalArgumentException("File may not be null");
+        }
+    }
+    
+    @Override
+    public long getContentLength() {
+        return mFile.length();
+    }
+
+    @Override
+    public String getContentType() {
+        return mContentType;
+    }
+
+    @Override
+    public boolean isRepeatable() {
+        return true;
+    }
+
+    @Override
+    public void addDatatransferProgressListener(OnDatatransferProgressListener listener) {
+        synchronized (mDataTransferListeners) {
+            mDataTransferListeners.add(listener);
+        }
+    }
+    
+    @Override
+    public void addDatatransferProgressListeners(Collection<OnDatatransferProgressListener> listeners) {
+        synchronized (mDataTransferListeners) {
+            mDataTransferListeners.addAll(listeners);
+        }
+    }
+    
+    @Override
+    public void removeDatatransferProgressListener(OnDatatransferProgressListener listener) {
+        synchronized (mDataTransferListeners) {
+            mDataTransferListeners.remove(listener);
+        }
+    }
+    
+    
+    @Override
+    public void writeRequest(final OutputStream out) throws IOException {
+        //byte[] tmp = new byte[4096];
+        ByteBuffer tmp = ByteBuffer.allocate(4096);
+        int readResult = 0;
+        
+        // TODO(bprzybylski): each mem allocation can throw OutOfMemoryError we need to handle it
+        //                    globally in some fashionable manner
+        RandomAccessFile raf = new RandomAccessFile(mFile, "r");
+        FileChannel channel = raf.getChannel();
+        Iterator<OnDatatransferProgressListener> it = null;
+        long transferred = 0;
+        long size = mFile.length();
+        if (size == 0) size = -1;
+        try {
+            while ((readResult = channel.read(tmp)) >= 0) {
+                out.write(tmp.array(), 0, readResult);
+                tmp.clear();
+                transferred += readResult;
+                synchronized (mDataTransferListeners) {
+                    it = mDataTransferListeners.iterator();
+                    while (it.hasNext()) {
+                        it.next().onTransferProgress(readResult, transferred, size, mFile.getAbsolutePath());
+                    }
+                }
+            }
+            
+        } catch (IOException io) {
+            Log.e("FileRequestException", io.getMessage());
+            throw new RuntimeException("Ugly solution to workaround the default policy of retries when the server falls while uploading ; temporal fix; really", io);   
+            
+        } finally {
+            channel.close();
+            raf.close();
+        }
+    }
+
+}

src/com/owncloud/android/lib/common/network/NetworkUtils.java

@@ -0,0 +1,176 @@
+/* ownCloud Android Library is available under MIT license
+ *   Copyright (C) 2014 ownCloud (http://www.owncloud.org/)
+ *   
+ *   Permission is hereby granted, free of charge, to any person obtaining a copy
+ *   of this software and associated documentation files (the "Software"), to deal
+ *   in the Software without restriction, including without limitation the rights
+ *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *   copies of the Software, and to permit persons to whom the Software is
+ *   furnished to do so, subject to the following conditions:
+ *   
+ *   The above copyright notice and this permission notice shall be included in
+ *   all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 
+ *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 
+ *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
+ *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ *   THE SOFTWARE.
+ *
+ */
+
+package com.owncloud.android.lib.common.network;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.security.GeneralSecurityException;
+import java.security.KeyStore;
+import java.security.KeyStoreException;
+import java.security.NoSuchAlgorithmException;
+import java.security.cert.Certificate;
+import java.security.cert.CertificateException;
+
+import javax.net.ssl.SSLContext;
+import javax.net.ssl.TrustManager;
+
+import org.apache.commons.httpclient.MultiThreadedHttpConnectionManager;
+import org.apache.commons.httpclient.protocol.Protocol;
+import org.apache.http.conn.ssl.BrowserCompatHostnameVerifier;
+import org.apache.http.conn.ssl.X509HostnameVerifier;
+
+import android.content.Context;
+import android.util.Log;
+
+public class NetworkUtils {
+    
+    final private static String TAG = NetworkUtils.class.getSimpleName();
+    
+    /** Default timeout for waiting data from the server */
+    public static final int DEFAULT_DATA_TIMEOUT = 60000;
+    
+    /** Default timeout for establishing a connection */
+    public static final int DEFAULT_CONNECTION_TIMEOUT = 60000;
+
+    /** Connection manager for all the OwnCloudClients */
+    private static MultiThreadedHttpConnectionManager mConnManager = null;
+    
+    private static Protocol mDefaultHttpsProtocol = null;
+
+    private static AdvancedSslSocketFactory mAdvancedSslSocketFactory = null;
+
+    private static X509HostnameVerifier mHostnameVerifier = null;
+    
+    
+    /**
+     * Registers or unregisters the proper components for advanced SSL handling.
+     * @throws IOException 
+     */
+    public static void registerAdvancedSslContext(boolean register, Context context) throws GeneralSecurityException, IOException {
+        Protocol pr = null;
+        try {
+            pr = Protocol.getProtocol("https");
+            if (pr != null && mDefaultHttpsProtocol == null) {
+                mDefaultHttpsProtocol = pr;
+            }
+        } catch (IllegalStateException e) {
+            // nothing to do here; really
+        }
+        boolean isRegistered = (pr != null && pr.getSocketFactory() instanceof AdvancedSslSocketFactory);
+        if (register && !isRegistered) {
+            Protocol.registerProtocol("https", new Protocol("https", getAdvancedSslSocketFactory(context), 443));
+            
+        } else if (!register && isRegistered) {
+            if (mDefaultHttpsProtocol != null) {
+                Protocol.registerProtocol("https", mDefaultHttpsProtocol);
+            }
+        }
+    }
+    
+    public static AdvancedSslSocketFactory getAdvancedSslSocketFactory(Context context) throws GeneralSecurityException, IOException {
+        if (mAdvancedSslSocketFactory  == null) {
+            KeyStore trustStore = getKnownServersStore(context);
+            AdvancedX509TrustManager trustMgr = new AdvancedX509TrustManager(trustStore);
+            TrustManager[] tms = new TrustManager[] { trustMgr };
+                
+            SSLContext sslContext = SSLContext.getInstance("TLS");
+            sslContext.init(null, tms, null);
+                    
+            mHostnameVerifier = new BrowserCompatHostnameVerifier();
+            mAdvancedSslSocketFactory = new AdvancedSslSocketFactory(sslContext, trustMgr, mHostnameVerifier);
+        }
+        return mAdvancedSslSocketFactory;
+    }
+
+
+    private static String LOCAL_TRUSTSTORE_FILENAME = "knownServers.bks";
+    
+    private static String LOCAL_TRUSTSTORE_PASSWORD = "password";
+
+    private static KeyStore mKnownServersStore = null;
+    
+    /**
+     * Returns the local store of reliable server certificates, explicitly accepted by the user.
+     * 
+     * Returns a KeyStore instance with empty content if the local store was never created.
+     * 
+     * Loads the store from the storage environment if needed.
+     * 
+     * @param context                       Android context where the operation is being performed.
+     * @return                              KeyStore instance with explicitly-accepted server certificates. 
+     * @throws KeyStoreException            When the KeyStore instance could not be created.
+     * @throws IOException                  When an existing local trust store could not be loaded.
+     * @throws NoSuchAlgorithmException     When the existing local trust store was saved with an unsupported algorithm.
+     * @throws CertificateException         When an exception occurred while loading the certificates from the local trust store.
+     */
+    private static KeyStore getKnownServersStore(Context context) throws KeyStoreException, IOException, NoSuchAlgorithmException, CertificateException {
+        if (mKnownServersStore == null) {
+            //mKnownServersStore = KeyStore.getInstance("BKS");
+            mKnownServersStore = KeyStore.getInstance(KeyStore.getDefaultType());
+            File localTrustStoreFile = new File(context.getFilesDir(), LOCAL_TRUSTSTORE_FILENAME);
+            Log.d(TAG, "Searching known-servers store at " + localTrustStoreFile.getAbsolutePath());
+            if (localTrustStoreFile.exists()) {
+                InputStream in = new FileInputStream(localTrustStoreFile);
+                try {
+                    mKnownServersStore.load(in, LOCAL_TRUSTSTORE_PASSWORD.toCharArray());
+                } finally {
+                    in.close();
+                }
+            } else {
+                mKnownServersStore.load(null, LOCAL_TRUSTSTORE_PASSWORD.toCharArray()); // necessary to initialize an empty KeyStore instance
+            }
+        }
+        return mKnownServersStore;
+    }
+    
+    
+    public static void addCertToKnownServersStore(Certificate cert, Context context) throws  KeyStoreException, NoSuchAlgorithmException, 
+                                                                                            CertificateException, IOException {
+        KeyStore knownServers = getKnownServersStore(context);
+        knownServers.setCertificateEntry(Integer.toString(cert.hashCode()), cert);
+        FileOutputStream fos = null;
+        try {
+            fos = context.openFileOutput(LOCAL_TRUSTSTORE_FILENAME, Context.MODE_PRIVATE);
+            knownServers.store(fos, LOCAL_TRUSTSTORE_PASSWORD.toCharArray());
+        } finally {
+            fos.close();
+        }
+    }
+    
+    
+    static public MultiThreadedHttpConnectionManager getMultiThreadedConnManager() {
+        if (mConnManager == null) {
+            mConnManager = new MultiThreadedHttpConnectionManager();
+            mConnManager.getParams().setDefaultMaxConnectionsPerHost(5);
+            mConnManager.getParams().setMaxTotalConnections(5);
+        }
+        return mConnManager;
+    }
+
+
+}

src/com/owncloud/android/lib/common/network/OnDatatransferProgressListener.java

@@ -0,0 +1,30 @@
+/* ownCloud Android Library is available under MIT license
+ *   Copyright (C) 2014 ownCloud (http://www.owncloud.org/)
+ *   Copyright (C) 2012  Bartek Przybylski
+ *   
+ *   Permission is hereby granted, free of charge, to any person obtaining a copy
+ *   of this software and associated documentation files (the "Software"), to deal
+ *   in the Software without restriction, including without limitation the rights
+ *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *   copies of the Software, and to permit persons to whom the Software is
+ *   furnished to do so, subject to the following conditions:
+ *   
+ *   The above copyright notice and this permission notice shall be included in
+ *   all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 
+ *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 
+ *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
+ *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ *   THE SOFTWARE.
+ *
+ */
+
+package com.owncloud.android.lib.common.network;
+
+public interface OnDatatransferProgressListener {
+    public void onTransferProgress(long progressRate, long totalTransferredSoFar, long totalToTransfer, String fileAbsoluteName);
+}

src/com/owncloud/android/lib/common/network/ProgressiveDataTransferer.java

@@ -0,0 +1,39 @@
+/* ownCloud Android Library is available under MIT license
+ *   Copyright (C) 2014 ownCloud (http://www.owncloud.org/)
+ *   
+ *   Permission is hereby granted, free of charge, to any person obtaining a copy
+ *   of this software and associated documentation files (the "Software"), to deal
+ *   in the Software without restriction, including without limitation the rights
+ *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *   copies of the Software, and to permit persons to whom the Software is
+ *   furnished to do so, subject to the following conditions:
+ *   
+ *   The above copyright notice and this permission notice shall be included in
+ *   all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 
+ *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 
+ *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
+ *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ *   THE SOFTWARE.
+ *
+ */
+
+package com.owncloud.android.lib.common.network;
+
+import java.util.Collection;
+
+
+
+public interface ProgressiveDataTransferer {
+
+    public void addDatatransferProgressListener (OnDatatransferProgressListener listener);
+    
+    public void addDatatransferProgressListeners(Collection<OnDatatransferProgressListener> listeners);
+
+    public void removeDatatransferProgressListener(OnDatatransferProgressListener listener);
+
+}

src/com/owncloud/android/lib/common/network/ServerNameIndicator.java

@@ -0,0 +1,151 @@
+/* ownCloud Android Library is available under MIT license
+ *   Copyright (C) 2014 ownCloud (http://www.owncloud.org/)
+ *   
+ *   Permission is hereby granted, free of charge, to any person obtaining a copy
+ *   of this software and associated documentation files (the "Software"), to deal
+ *   in the Software without restriction, including without limitation the rights
+ *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *   copies of the Software, and to permit persons to whom the Software is
+ *   furnished to do so, subject to the following conditions:
+ *   
+ *   The above copyright notice and this permission notice shall be included in
+ *   all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 
+ *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 
+ *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
+ *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ *   THE SOFTWARE.
+ *
+ */
+
+package com.owncloud.android.lib.common.network;
+
+import java.lang.ref.WeakReference;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.concurrent.atomic.AtomicReference;
+
+import javax.net.ssl.SSLSocket;
+
+import android.util.Log;
+
+
+/**
+ * Enables the support of Server Name Indication if existing 
+ * in the underlying network implementation.
+ * 
+ * Build as a singleton.
+ * 
+ * @author David A. Velasco
+ */
+public class ServerNameIndicator {
+	
+	private static final String TAG = ServerNameIndicator.class.getSimpleName();
+	
+	private static final AtomicReference<ServerNameIndicator> mSingleInstance = new AtomicReference<ServerNameIndicator>();
+	
+	private static final String METHOD_NAME = "setHostname";
+	
+	private final WeakReference<Class<?>> mSSLSocketClassRef;
+	private final WeakReference<Method> mSetHostnameMethodRef;
+	
+	
+	/**
+	 * Private constructor, class is a singleton.
+	 * 
+	 * @param sslSocketClass		Underlying implementation class of {@link SSLSocket} used to connect with the server. 
+	 * @param setHostnameMethod		Name of the method to call to enable the SNI support.
+	 */
+	private ServerNameIndicator(Class<?> sslSocketClass, Method setHostnameMethod) {
+		mSSLSocketClassRef = new WeakReference<Class<?>>(sslSocketClass);
+		mSetHostnameMethodRef = (setHostnameMethod == null) ? null : new WeakReference<Method>(setHostnameMethod);
+	}
+	
+	
+	/**
+	 * Calls the {@code #setHostname(String)} method of the underlying implementation 
+	 * of {@link SSLSocket} if exists.
+	 * 
+	 * Creates and initializes the single instance of the class when needed
+	 *
+	 * @param hostname 		The name of the server host of interest.
+	 * @param sslSocket 	Client socket to connect with the server.
+	 */
+	public static void setServerNameIndication(String hostname, SSLSocket sslSocket) {
+		final Method setHostnameMethod = getMethod(sslSocket);
+		if (setHostnameMethod != null) {
+			try {
+				setHostnameMethod.invoke(sslSocket, hostname);
+				Log.i(TAG, "SNI done, hostname: " + hostname);
+				
+			} catch (IllegalArgumentException e) {
+				Log.e(TAG, "Call to SSLSocket#setHost(String) failed ", e);
+				
+			} catch (IllegalAccessException e) {
+				Log.e(TAG, "Call to SSLSocket#setHost(String) failed ", e);
+				
+			} catch (InvocationTargetException e) {
+				Log.e(TAG, "Call to SSLSocket#setHost(String) failed ", e);
+			}
+		} else {
+			Log.i(TAG, "SNI not supported");
+		}
+	}
+
+	
+	/**
+	 * Gets the method to invoke trying to minimize the effective 
+	 * application of reflection.
+	 * 
+	 * @param 	sslSocket		Instance of the SSL socket to use in connection with server.
+	 * @return					Method to call to indicate the server name of interest to the server.
+	 */
+	private static Method getMethod(SSLSocket sslSocket) {
+		final Class<?> sslSocketClass = sslSocket.getClass();
+		final ServerNameIndicator instance = mSingleInstance.get();
+		if (instance == null) {
+			return initFrom(sslSocketClass);
+			
+		} else if (instance.mSSLSocketClassRef.get() != sslSocketClass) {
+			// the underlying class changed
+			return initFrom(sslSocketClass);
+				
+		} else if (instance.mSetHostnameMethodRef == null) {
+			// SNI not supported
+			return null;
+				
+		} else {
+			final Method cachedSetHostnameMethod = instance.mSetHostnameMethodRef.get();
+			return (cachedSetHostnameMethod == null) ? initFrom(sslSocketClass) : cachedSetHostnameMethod;
+		}
+	}
+
+
+	/**
+	 * Singleton initializer.
+	 * 
+	 * Uses reflection to extract and 'cache' the method to invoke to indicate the desited host name to the server side.
+	 *  
+	 * @param 	sslSocketClass		Underlying class providing the implementation of {@link SSLSocket}.
+	 * @return						Method to call to indicate the server name of interest to the server.
+	 */
+	private static Method initFrom(Class<?> sslSocketClass) {
+        Log.i(TAG, "SSLSocket implementation: " + sslSocketClass.getCanonicalName());
+		Method setHostnameMethod = null;
+		try {
+			setHostnameMethod = sslSocketClass.getMethod(METHOD_NAME, String.class);
+		} catch (SecurityException e) {
+			Log.e(TAG, "Could not access to SSLSocket#setHostname(String) method ", e);
+			
+		} catch (NoSuchMethodException e) {
+			Log.i(TAG, "Could not find SSLSocket#setHostname(String) method - SNI not supported");
+		}
+		mSingleInstance.set(new ServerNameIndicator(sslSocketClass, setHostnameMethod));
+		return setHostnameMethod;
+	}
+
+}

src/com/owncloud/android/lib/common/network/WebdavEntry.java

@@ -0,0 +1,159 @@
+/* ownCloud Android Library is available under MIT license
+ *   Copyright (C) 2014 ownCloud (http://www.owncloud.org/)
+ *   
+ *   Permission is hereby granted, free of charge, to any person obtaining a copy
+ *   of this software and associated documentation files (the "Software"), to deal
+ *   in the Software without restriction, including without limitation the rights
+ *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *   copies of the Software, and to permit persons to whom the Software is
+ *   furnished to do so, subject to the following conditions:
+ *   
+ *   The above copyright notice and this permission notice shall be included in
+ *   all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 
+ *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 
+ *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
+ *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ *   THE SOFTWARE.
+ *
+ */
+
+package com.owncloud.android.lib.common.network;
+
+import java.util.Date;
+
+import org.apache.jackrabbit.webdav.MultiStatusResponse;
+import org.apache.jackrabbit.webdav.property.DavProperty;
+import org.apache.jackrabbit.webdav.property.DavPropertyName;
+import org.apache.jackrabbit.webdav.property.DavPropertySet;
+
+
+
+
+import android.net.Uri;
+import android.util.Log;
+
+public class WebdavEntry {
+    private String mName, mPath, mUri, mContentType, mEtag;
+    private long mContentLength, mCreateTimestamp, mModifiedTimestamp;
+
+    public WebdavEntry(MultiStatusResponse ms, String splitElement) {
+        resetData();
+        if (ms.getStatus().length != 0) {
+            mUri = ms.getHref();
+
+            mPath = mUri.split(splitElement, 2)[1];
+
+            int status = ms.getStatus()[0].getStatusCode();
+            DavPropertySet propSet = ms.getProperties(status);
+            @SuppressWarnings("rawtypes")
+            DavProperty prop = propSet.get(DavPropertyName.DISPLAYNAME);
+            if (prop != null) {
+                mName = (String) prop.getName().toString();
+                mName = mName.substring(1, mName.length()-1);
+            }
+            else {
+                String[] tmp = mPath.split("/");
+                if (tmp.length > 0)
+                    mName = tmp[tmp.length - 1];
+            }
+
+            // use unknown mimetype as default behavior
+            mContentType = "application/octet-stream";
+            prop = propSet.get(DavPropertyName.GETCONTENTTYPE);
+            if (prop != null) {
+                mContentType = (String) prop.getValue();
+                // dvelasco: some builds of ownCloud server 4.0.x added a trailing ';' to the MIME type ; if looks fixed, but let's be cautious
+                if (mContentType.indexOf(";") >= 0) {
+                    mContentType = mContentType.substring(0, mContentType.indexOf(";"));
+                }
+            }
+            
+            // check if it's a folder in the standard way: see RFC2518 12.2 . RFC4918 14.3 
+            prop = propSet.get(DavPropertyName.RESOURCETYPE);
+            if (prop!= null) {
+                Object value = prop.getValue();
+                if (value != null) {
+                    mContentType = "DIR";   // a specific attribute would be better, but this is enough; unless while we have no reason to distinguish MIME types for folders
+                }
+            }
+
+            prop = propSet.get(DavPropertyName.GETCONTENTLENGTH);
+            if (prop != null)
+                mContentLength = Long.parseLong((String) prop.getValue());
+
+            prop = propSet.get(DavPropertyName.GETLASTMODIFIED);
+            if (prop != null) {
+                Date d = WebdavUtils
+                        .parseResponseDate((String) prop.getValue());
+                mModifiedTimestamp = (d != null) ? d.getTime() : 0;
+            }
+
+            prop = propSet.get(DavPropertyName.CREATIONDATE);
+            if (prop != null) {
+                Date d = WebdavUtils
+                        .parseResponseDate((String) prop.getValue());
+                mCreateTimestamp = (d != null) ? d.getTime() : 0;
+            }
+            
+            prop = propSet.get(DavPropertyName.GETETAG);
+            if (prop != null) {
+                mEtag = (String) prop.getValue();
+                mEtag = mEtag.substring(1, mEtag.length()-1);
+            }
+
+        } else {
+            Log.e("WebdavEntry",
+                    "General fuckup, no status for webdav response");
+        }
+    }
+
+    public String path() {
+        return mPath;
+    }
+    
+    public String decodedPath() {
+        return Uri.decode(mPath);
+    }
+
+    public String name() {
+        return mName;
+    }
+
+    public boolean isDirectory() {
+        return mContentType.equals("DIR");
+    }
+
+    public String contentType() {
+        return mContentType;
+    }
+
+    public String uri() {
+        return mUri;
+    }
+
+    public long contentLength() {
+        return mContentLength;
+    }
+
+    public long createTimestamp() {
+        return mCreateTimestamp;
+    }
+
+    public long modifiedTimestamp() {
+        return mModifiedTimestamp;
+    }
+    
+    public String etag() {
+        return mEtag;
+    }
+
+    private void resetData() {
+        mName = mUri = mContentType = null;
+        mContentLength = mCreateTimestamp = mModifiedTimestamp = 0;
+    }
+}

src/com/owncloud/android/lib/common/network/WebdavUtils.java

@@ -0,0 +1,83 @@
+/* ownCloud Android Library is available under MIT license
+ *   Copyright (C) 2014 ownCloud (http://www.owncloud.org/)
+ *   Copyright (C) 2012  Bartek Przybylski
+ *   
+ *   Permission is hereby granted, free of charge, to any person obtaining a copy
+ *   of this software and associated documentation files (the "Software"), to deal
+ *   in the Software without restriction, including without limitation the rights
+ *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *   copies of the Software, and to permit persons to whom the Software is
+ *   furnished to do so, subject to the following conditions:
+ *   
+ *   The above copyright notice and this permission notice shall be included in
+ *   all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 
+ *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 
+ *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
+ *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ *   THE SOFTWARE.
+ *
+ */
+
+package com.owncloud.android.lib.common.network;
+
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.Locale;
+
+import android.net.Uri;
+
+public class WebdavUtils {
+    public static final SimpleDateFormat DISPLAY_DATE_FORMAT = new SimpleDateFormat(
+            "dd.MM.yyyy hh:mm");
+    private static final SimpleDateFormat DATETIME_FORMATS[] = {
+            new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'", Locale.US),
+            new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss zzz", Locale.US),
+            new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.sss'Z'", Locale.US),
+            new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ", Locale.US),
+            new SimpleDateFormat("EEE MMM dd HH:mm:ss zzz yyyy", Locale.US),
+            new SimpleDateFormat("EEEEEE, dd-MMM-yy HH:mm:ss zzz", Locale.US),
+            new SimpleDateFormat("EEE MMMM d HH:mm:ss yyyy", Locale.US) };
+
+    public static String prepareXmlForPropFind() {
+        String ret = "<?xml version=\"1.0\" ?><D:propfind xmlns:D=\"DAV:\"><D:allprop/></D:propfind>";
+        return ret;
+    }
+
+    public static String prepareXmlForPatch() {
+        return "<?xml version=\"1.0\" ?><D:propertyupdate xmlns:D=\"DAV:\"></D:propertyupdate>";
+    }
+
+    public static Date parseResponseDate(String date) {
+        Date returnDate = null;
+        for (int i = 0; i < DATETIME_FORMATS.length; ++i) {
+            try {
+                returnDate = DATETIME_FORMATS[i].parse(date);
+                return returnDate;
+            } catch (ParseException e) {
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Encodes a path according to URI RFC 2396. 
+     * 
+     * If the received path doesn't start with "/", the method adds it.
+     * 
+     * @param remoteFilePath    Path
+     * @return                  Encoded path according to RFC 2396, always starting with "/"
+     */
+    public static String encodePath(String remoteFilePath) {
+        String encodedPath = Uri.encode(remoteFilePath, "/");
+        if (!encodedPath.startsWith("/"))
+            encodedPath = "/" + encodedPath;
+        return encodedPath;
+    }
+    
+}

src/com/owncloud/android/lib/common/operations/OnRemoteOperationListener.java

@@ -0,0 +1,33 @@
+/* ownCloud Android Library is available under MIT license
+ *   Copyright (C) 2014 ownCloud (http://www.owncloud.org/)
+ *   Copyright (C) 2012  Bartek Przybylski
+ *   
+ *   Permission is hereby granted, free of charge, to any person obtaining a copy
+ *   of this software and associated documentation files (the "Software"), to deal
+ *   in the Software without restriction, including without limitation the rights
+ *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *   copies of the Software, and to permit persons to whom the Software is
+ *   furnished to do so, subject to the following conditions:
+ *   
+ *   The above copyright notice and this permission notice shall be included in
+ *   all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 
+ *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 
+ *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
+ *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ *   THE SOFTWARE.
+ *
+ */
+
+package com.owncloud.android.lib.common.operations;
+
+
+public interface OnRemoteOperationListener {
+
+	void onRemoteOperationFinish(RemoteOperation caller, RemoteOperationResult result);
+	
+}

src/com/owncloud/android/lib/common/operations/OperationCancelledException.java

@@ -0,0 +1,35 @@
+/* ownCloud Android Library is available under MIT license
+ *   Copyright (C) 2014 ownCloud (http://www.owncloud.org/)
+ *   Copyright (C) 2012  Bartek Przybylski
+ *   
+ *   Permission is hereby granted, free of charge, to any person obtaining a copy
+ *   of this software and associated documentation files (the "Software"), to deal
+ *   in the Software without restriction, including without limitation the rights
+ *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *   copies of the Software, and to permit persons to whom the Software is
+ *   furnished to do so, subject to the following conditions:
+ *   
+ *   The above copyright notice and this permission notice shall be included in
+ *   all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 
+ *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 
+ *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
+ *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ *   THE SOFTWARE.
+ *
+ */
+
+package com.owncloud.android.lib.common.operations;
+
+public class OperationCancelledException extends Exception {
+
+    /**
+     * Generated serial version - to avoid Java warning
+     */
+    private static final long serialVersionUID = -6350981497740424983L;
+
+}

src/com/owncloud/android/lib/common/operations/RemoteOperation.java

@@ -0,0 +1,272 @@
+/* ownCloud Android Library is available under MIT license
+ *   Copyright (C) 2014 ownCloud (http://www.owncloud.org/)
+ *   
+ *   Permission is hereby granted, free of charge, to any person obtaining a copy
+ *   of this software and associated documentation files (the "Software"), to deal
+ *   in the Software without restriction, including without limitation the rights
+ *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *   copies of the Software, and to permit persons to whom the Software is
+ *   furnished to do so, subject to the following conditions:
+ *   
+ *   The above copyright notice and this permission notice shall be included in
+ *   all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 
+ *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 
+ *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
+ *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ *   THE SOFTWARE.
+ *
+ */
+
+package com.owncloud.android.lib.common.operations;
+
+import java.io.IOException;
+
+import org.apache.commons.httpclient.Credentials;
+
+import com.owncloud.android.lib.common.OwnCloudClient;
+import com.owncloud.android.lib.common.OwnCloudClientFactory;
+import com.owncloud.android.lib.common.network.BearerCredentials;
+import com.owncloud.android.lib.common.operations.RemoteOperationResult.ResultCode;
+
+
+
+import android.accounts.Account;
+import android.accounts.AccountManager;
+import android.accounts.AccountsException;
+import android.app.Activity;
+import android.content.Context;
+import android.os.Handler;
+import android.util.Log;
+
+
+/**
+ * Operation which execution involves one or several interactions with an ownCloud server.
+ * 
+ * Provides methods to execute the operation both synchronously or asynchronously.
+ * 
+ * @author David A. Velasco 
+ */
+public abstract class RemoteOperation implements Runnable {
+	
+    private static final String TAG = RemoteOperation.class.getSimpleName();
+
+    /** ownCloud account in the remote ownCloud server to operate */
+    private Account mAccount = null;
+    
+    /** Android Application context */
+    private Context mContext = null;
+    
+	/** Object to interact with the remote server */
+	private OwnCloudClient mClient = null;
+	
+	/** Callback object to notify about the execution of the remote operation */
+	private OnRemoteOperationListener mListener = null;
+	
+	/** Handler to the thread where mListener methods will be called */
+	private Handler mListenerHandler = null;
+
+	/** Activity */
+    private Activity mCallerActivity;
+
+	
+	/**
+	 *  Abstract method to implement the operation in derived classes.
+	 */
+	protected abstract RemoteOperationResult run(OwnCloudClient client); 
+	
+
+    /**
+     * Synchronously executes the remote operation on the received ownCloud account.
+     * 
+     * Do not call this method from the main thread.
+     * 
+     * This method should be used whenever an ownCloud account is available, instead of {@link #execute(OwnCloudClient)}. 
+     * 
+     * @param account   ownCloud account in remote ownCloud server to reach during the execution of the operation.
+     * @param context   Android context for the component calling the method.
+     * @return          Result of the operation.
+     */
+    public RemoteOperationResult execute(Account account, Context context) {
+        if (account == null)
+            throw new IllegalArgumentException("Trying to execute a remote operation with a NULL Account");
+        if (context == null)
+            throw new IllegalArgumentException("Trying to execute a remote operation with a NULL Context");
+        mAccount = account;
+        mContext = context.getApplicationContext();
+        try {
+            mClient = OwnCloudClientFactory.createOwnCloudClient(mAccount, mContext);
+        } catch (Exception e) {
+            Log.e(TAG, "Error while trying to access to " + mAccount.name, e);
+            return new RemoteOperationResult(e);
+        }
+        return run(mClient);
+    }
+    
+	
+	/**
+	 * Synchronously executes the remote operation
+	 * 
+     * Do not call this method from the main thread.
+     * 
+	 * @param client	Client object to reach an ownCloud server during the execution of the operation.
+	 * @return			Result of the operation.
+	 */
+	public RemoteOperationResult execute(OwnCloudClient client) {
+		if (client == null)
+			throw new IllegalArgumentException("Trying to execute a remote operation with a NULL OwnCloudClient");
+		mClient = client;
+		return run(client);
+	}
+
+	
+    /**
+     * Asynchronously executes the remote operation
+     * 
+     * This method should be used whenever an ownCloud account is available, instead of {@link #execute(OwnCloudClient)}. 
+     * 
+     * @param account           ownCloud account in remote ownCloud server to reach during the execution of the operation.
+     * @param context           Android context for the component calling the method.
+     * @param listener          Listener to be notified about the execution of the operation.
+     * @param listenerHandler   Handler associated to the thread where the methods of the listener objects must be called.
+     * @return                  Thread were the remote operation is executed.
+     */
+    public Thread execute(Account account, Context context, OnRemoteOperationListener listener, Handler listenerHandler, Activity callerActivity) {
+        if (account == null)
+            throw new IllegalArgumentException("Trying to execute a remote operation with a NULL Account");
+        if (context == null)
+            throw new IllegalArgumentException("Trying to execute a remote operation with a NULL Context");
+        mAccount = account;
+        mContext = context.getApplicationContext();
+        mCallerActivity = callerActivity;
+        mClient = null;     // the client instance will be created from mAccount and mContext in the runnerThread to create below
+        
+        mListener = listener;
+        
+        mListenerHandler = listenerHandler;
+        
+        Thread runnerThread = new Thread(this);
+        runnerThread.start();
+        return runnerThread;
+    }
+
+    
+	/**
+	 * Asynchronously executes the remote operation
+	 * 
+	 * @param client			Client object to reach an ownCloud server during the execution of the operation.
+	 * @param listener			Listener to be notified about the execution of the operation.
+	 * @param listenerHandler	Handler associated to the thread where the methods of the listener objects must be called.
+	 * @return					Thread were the remote operation is executed.
+	 */
+	public Thread execute(OwnCloudClient client, OnRemoteOperationListener listener, Handler listenerHandler) {
+		if (client == null) {
+			throw new IllegalArgumentException("Trying to execute a remote operation with a NULL OwnCloudClient");
+		}
+		mClient = client;
+		
+		if (listener == null) {
+			throw new IllegalArgumentException("Trying to execute a remote operation asynchronously without a listener to notiy the result");
+		}
+		mListener = listener;
+		
+		if (listenerHandler == null) {
+			throw new IllegalArgumentException("Trying to execute a remote operation asynchronously without a handler to the listener's thread");
+		}
+		mListenerHandler = listenerHandler;
+		
+		Thread runnerThread = new Thread(this);
+		runnerThread.start();
+		return runnerThread;
+	}
+	
+	/**
+	 * Asynchronous execution of the operation 
+	 * started by {@link RemoteOperation#execute(OwnCloudClient, OnRemoteOperationListener, Handler)}, 
+	 * and result posting.
+	 * 
+	 * TODO refactor && clean the code; now it's a mess
+	 */
+    @Override
+    public final void run() {
+        RemoteOperationResult result = null;
+        boolean repeat = false;
+        do {
+            try{
+                if (mClient == null) {
+                    if (mAccount != null && mContext != null) {
+                        if (mCallerActivity != null) {
+                            mClient = OwnCloudClientFactory.createOwnCloudClient(mAccount, mContext, mCallerActivity);
+                        } else {
+                            mClient = OwnCloudClientFactory.createOwnCloudClient(mAccount, mContext);
+                        }
+                    } else {
+                        throw new IllegalStateException("Trying to run a remote operation asynchronously with no client instance or account");
+                    }
+                }
+            
+            } catch (IOException e) {
+                Log.e(TAG, "Error while trying to access to " + mAccount.name, new AccountsException("I/O exception while trying to authorize the account", e));
+                result = new RemoteOperationResult(e);
+            
+            } catch (AccountsException e) {
+                Log.e(TAG, "Error while trying to access to " + mAccount.name, e);
+                result = new RemoteOperationResult(e);
+            }
+    	
+            if (result == null)
+                result = run(mClient);
+        
+            repeat = false;
+            if (mCallerActivity != null && mAccount != null && mContext != null && !result.isSuccess() &&
+//                    (result.getCode() == ResultCode.UNAUTHORIZED || (result.isTemporalRedirection() && result.isIdPRedirection()))) {
+                    (result.getCode() == ResultCode.UNAUTHORIZED || result.isIdPRedirection())) {
+                /// possible fail due to lack of authorization in an operation performed in foreground
+                Credentials cred = mClient.getCredentials();
+                String ssoSessionCookie = mClient.getSsoSessionCookie();
+                if (cred != null || ssoSessionCookie != null) {
+                    /// confirmed : unauthorized operation
+                    AccountManager am = AccountManager.get(mContext);
+                    boolean bearerAuthorization = (cred != null && cred instanceof BearerCredentials);
+                    boolean samlBasedSsoAuthorization = (cred == null && ssoSessionCookie != null);
+                    if (bearerAuthorization) {
+                        am.invalidateAuthToken(mAccount.type, ((BearerCredentials)cred).getAccessToken());
+                    } else if (samlBasedSsoAuthorization ) {
+                        am.invalidateAuthToken(mAccount.type, ssoSessionCookie);
+                    } else {
+                        am.clearPassword(mAccount);
+                    }
+                    mClient = null;
+                    repeat = true;  // when repeated, the creation of a new OwnCloudClient after erasing the saved credentials will trigger the login activity
+                    result = null;
+                }
+            }
+        } while (repeat);
+        
+        final RemoteOperationResult resultToSend = result;
+        if (mListenerHandler != null && mListener != null) {
+        	mListenerHandler.post(new Runnable() {
+                @Override
+                public void run() {
+                    mListener.onRemoteOperationFinish(RemoteOperation.this, resultToSend);
+                }
+            });
+        }
+    }
+
+
+    /**
+     * Returns the current client instance to access the remote server.
+     * 
+     * @return      Current client instance to access the remote server.
+     */
+    public final OwnCloudClient getClient() {
+        return mClient;
+    }
+
+
+}

src/com/owncloud/android/lib/common/operations/RemoteOperationResult.java

@@ -0,0 +1,363 @@
+/* ownCloud Android Library is available under MIT license
+ *   Copyright (C) 2014 ownCloud (http://www.owncloud.org/)
+ *   Copyright (C) 2012  Bartek Przybylski
+ *   
+ *   Permission is hereby granted, free of charge, to any person obtaining a copy
+ *   of this software and associated documentation files (the "Software"), to deal
+ *   in the Software without restriction, including without limitation the rights
+ *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *   copies of the Software, and to permit persons to whom the Software is
+ *   furnished to do so, subject to the following conditions:
+ *   
+ *   The above copyright notice and this permission notice shall be included in
+ *   all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 
+ *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 
+ *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
+ *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ *   THE SOFTWARE.
+ *
+ */
+
+package com.owncloud.android.lib.common.operations;
+
+import java.io.IOException;
+import java.io.Serializable;
+import java.net.MalformedURLException;
+import java.net.SocketException;
+import java.net.SocketTimeoutException;
+import java.net.UnknownHostException;
+import java.util.ArrayList;
+
+import javax.net.ssl.SSLException;
+
+import org.apache.commons.httpclient.ConnectTimeoutException;
+import org.apache.commons.httpclient.Header;
+import org.apache.commons.httpclient.HttpException;
+import org.apache.commons.httpclient.HttpStatus;
+import org.apache.jackrabbit.webdav.DavException;
+import org.json.JSONException;
+
+import com.owncloud.android.lib.common.accounts.AccountUtils.AccountNotFoundException;
+import com.owncloud.android.lib.common.network.CertificateCombinedException;
+
+import android.accounts.Account;
+import android.accounts.AccountsException;
+import android.util.Log;
+
+
+/**
+ * The result of a remote operation required to an ownCloud server.
+ * 
+ * Provides a common classification of remote operation results for all the
+ * application.
+ * 
+ * @author David A. Velasco
+ */
+public class RemoteOperationResult implements Serializable {
+	
+	/** Generated - should be refreshed every time the class changes!! */
+	private static final long serialVersionUID = -8257349554488668693L;
+    
+    private static final String TAG = "RemoteOperationResult";
+    
+    public enum ResultCode { 
+        OK,
+        OK_SSL,
+        OK_NO_SSL,
+        UNHANDLED_HTTP_CODE,
+        UNAUTHORIZED,        
+        FILE_NOT_FOUND, 
+        INSTANCE_NOT_CONFIGURED, 
+        UNKNOWN_ERROR, 
+        WRONG_CONNECTION,  
+        TIMEOUT, 
+        INCORRECT_ADDRESS, 
+        HOST_NOT_AVAILABLE, 
+        NO_NETWORK_CONNECTION, 
+        SSL_ERROR,
+        SSL_RECOVERABLE_PEER_UNVERIFIED,
+        BAD_OC_VERSION,
+        CANCELLED, 
+        INVALID_LOCAL_FILE_NAME, 
+        INVALID_OVERWRITE,
+        CONFLICT, 
+        OAUTH2_ERROR,
+        SYNC_CONFLICT,
+        LOCAL_STORAGE_FULL, 
+        LOCAL_STORAGE_NOT_MOVED, 
+        LOCAL_STORAGE_NOT_COPIED, 
+        OAUTH2_ERROR_ACCESS_DENIED,
+        QUOTA_EXCEEDED, 
+        ACCOUNT_NOT_FOUND, 
+        ACCOUNT_EXCEPTION, 
+        ACCOUNT_NOT_NEW, 
+        ACCOUNT_NOT_THE_SAME,
+        INVALID_CHARACTER_IN_NAME
+    }
+
+    private boolean mSuccess = false;
+    private int mHttpCode = -1;
+    private Exception mException = null;
+    private ResultCode mCode = ResultCode.UNKNOWN_ERROR;
+    private String mRedirectedLocation;
+
+    private ArrayList<Object> mData;
+    
+    public RemoteOperationResult(ResultCode code) {
+        mCode = code;
+        mSuccess = (code == ResultCode.OK || code == ResultCode.OK_SSL || code == ResultCode.OK_NO_SSL);
+        mData = null;
+    }
+
+    private RemoteOperationResult(boolean success, int httpCode) {
+        mSuccess = success;
+        mHttpCode = httpCode;
+
+        if (success) {
+            mCode = ResultCode.OK;
+
+        } else if (httpCode > 0) {
+            switch (httpCode) {
+            case HttpStatus.SC_UNAUTHORIZED:
+                mCode = ResultCode.UNAUTHORIZED;
+                break;
+            case HttpStatus.SC_NOT_FOUND:
+                mCode = ResultCode.FILE_NOT_FOUND;
+                break;
+            case HttpStatus.SC_INTERNAL_SERVER_ERROR:
+                mCode = ResultCode.INSTANCE_NOT_CONFIGURED;
+                break;
+            case HttpStatus.SC_CONFLICT:
+                mCode = ResultCode.CONFLICT;
+                break;
+            case HttpStatus.SC_INSUFFICIENT_STORAGE:
+                mCode = ResultCode.QUOTA_EXCEEDED;
+                break;
+            default:
+                mCode = ResultCode.UNHANDLED_HTTP_CODE;
+                Log.d(TAG, "RemoteOperationResult has processed UNHANDLED_HTTP_CODE: " + httpCode);
+            }
+        }
+    }
+    
+    public RemoteOperationResult(boolean success, int httpCode, Header[] headers) {
+        this(success, httpCode);
+        if (headers != null) {
+            Header current;
+            for (int i=0; i<headers.length; i++) {
+                current = headers[i];
+                if ("Location".equals(current.getName())) {
+                    mRedirectedLocation = current.getValue();
+                    break;
+                }
+            }
+        }
+    }    
+
+    public RemoteOperationResult(Exception e) {
+        mException = e;
+
+        if (e instanceof OperationCancelledException) {
+            mCode = ResultCode.CANCELLED;
+
+        } else if (e instanceof SocketException) {
+            mCode = ResultCode.WRONG_CONNECTION;
+
+        } else if (e instanceof SocketTimeoutException) {
+            mCode = ResultCode.TIMEOUT;
+
+        } else if (e instanceof ConnectTimeoutException) {
+            mCode = ResultCode.TIMEOUT;
+
+        } else if (e instanceof MalformedURLException) {
+            mCode = ResultCode.INCORRECT_ADDRESS;
+
+        } else if (e instanceof UnknownHostException) {
+            mCode = ResultCode.HOST_NOT_AVAILABLE;
+
+        } else if (e instanceof AccountNotFoundException) {
+            mCode = ResultCode.ACCOUNT_NOT_FOUND;
+            
+        } else if (e instanceof AccountsException) {
+            mCode = ResultCode.ACCOUNT_EXCEPTION;
+            
+        } else if (e instanceof SSLException || e instanceof RuntimeException) {
+            CertificateCombinedException se = getCertificateCombinedException(e);
+            if (se != null) {
+                mException = se;
+                if (se.isRecoverable()) {
+                    mCode = ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED;
+                }
+            } else if (e instanceof RuntimeException) {
+                mCode = ResultCode.HOST_NOT_AVAILABLE;
+
+            } else {
+                mCode = ResultCode.SSL_ERROR;
+            }
+
+        } else {
+            mCode = ResultCode.UNKNOWN_ERROR;
+        }
+
+    }
+
+
+    public void setData(ArrayList<Object> files){
+    	mData = files;
+    }
+    
+	public ArrayList<Object> getData(){
+		return mData;
+	}
+    
+    public boolean isSuccess() {
+        return mSuccess;
+    }
+
+    public boolean isCancelled() {
+        return mCode == ResultCode.CANCELLED;
+    }
+
+    public int getHttpCode() {
+        return mHttpCode;
+    }
+
+    public ResultCode getCode() {
+        return mCode;
+    }
+
+    public Exception getException() {
+        return mException;
+    }
+
+    public boolean isSslRecoverableException() {
+        return mCode == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED;
+    }
+
+    private CertificateCombinedException getCertificateCombinedException(Exception e) {
+        CertificateCombinedException result = null;
+        if (e instanceof CertificateCombinedException) {
+            return (CertificateCombinedException) e;
+        }
+        Throwable cause = mException.getCause();
+        Throwable previousCause = null;
+        while (cause != null && cause != previousCause && !(cause instanceof CertificateCombinedException)) {
+            previousCause = cause;
+            cause = cause.getCause();
+        }
+        if (cause != null && cause instanceof CertificateCombinedException) {
+            result = (CertificateCombinedException) cause;
+        }
+        return result;
+    }
+
+    public String getLogMessage() {
+
+        if (mException != null) {
+            if (mException instanceof OperationCancelledException) {
+                return "Operation cancelled by the caller";
+
+            } else if (mException instanceof SocketException) {
+                return "Socket exception";
+
+            } else if (mException instanceof SocketTimeoutException) {
+                return "Socket timeout exception";
+
+            } else if (mException instanceof ConnectTimeoutException) {
+                return "Connect timeout exception";
+
+            } else if (mException instanceof MalformedURLException) {
+                return "Malformed URL exception";
+
+            } else if (mException instanceof UnknownHostException) {
+                return "Unknown host exception";
+
+            } else if (mException instanceof CertificateCombinedException) {
+                if (((CertificateCombinedException) mException).isRecoverable())
+                    return "SSL recoverable exception";
+                else
+                    return "SSL exception";
+
+            } else if (mException instanceof SSLException) {
+                return "SSL exception";
+
+            } else if (mException instanceof DavException) {
+                return "Unexpected WebDAV exception";
+
+            } else if (mException instanceof HttpException) {
+                return "HTTP violation";
+
+            } else if (mException instanceof IOException) {
+                return "Unrecovered transport exception";
+
+            } else if (mException instanceof AccountNotFoundException) {
+                Account failedAccount = ((AccountNotFoundException)mException).getFailedAccount();
+                return mException.getMessage() + " (" + (failedAccount != null ? failedAccount.name : "NULL") + ")";
+                
+            } else if (mException instanceof AccountsException) {
+                return "Exception while using account";
+                
+            } else if (mException instanceof JSONException) {
+            	return "JSON exception";
+            	
+            } else {
+                return "Unexpected exception";
+            }
+        }
+
+        if (mCode == ResultCode.INSTANCE_NOT_CONFIGURED) {
+            return "The ownCloud server is not configured!";
+
+        } else if (mCode == ResultCode.NO_NETWORK_CONNECTION) {
+            return "No network connection";
+
+        } else if (mCode == ResultCode.BAD_OC_VERSION) {
+            return "No valid ownCloud version was found at the server";
+
+        } else if (mCode == ResultCode.LOCAL_STORAGE_FULL) {
+            return "Local storage full";
+
+        } else if (mCode == ResultCode.LOCAL_STORAGE_NOT_MOVED) {
+            return "Error while moving file to final directory";
+
+        } else if (mCode == ResultCode.ACCOUNT_NOT_NEW) {
+            return "Account already existing when creating a new one";
+
+        } else if (mCode == ResultCode.ACCOUNT_NOT_THE_SAME) {
+            return "Authenticated with a different account than the one updating";
+        } else if (mCode == ResultCode.INVALID_CHARACTER_IN_NAME) {
+                return "The file name contains an forbidden character";
+        }
+
+        return "Operation finished with HTTP status code " + mHttpCode + " (" + (isSuccess() ? "success" : "fail") + ")";
+
+    }
+
+    public boolean isServerFail() {
+        return (mHttpCode >= HttpStatus.SC_INTERNAL_SERVER_ERROR);
+    }
+
+    public boolean isException() {
+        return (mException != null);
+    }
+
+    public boolean isTemporalRedirection() {
+        return (mHttpCode == 302 || mHttpCode == 307);
+    }
+
+    public String getRedirectedLocation() {
+        return mRedirectedLocation;
+    }
+    
+    public boolean isIdPRedirection() {
+        return (mRedirectedLocation != null &&
+                (mRedirectedLocation.toUpperCase().contains("SAML") || 
+                mRedirectedLocation.toLowerCase().contains("wayf")));
+    }
+
+}