Cancellation of current download in details view - UI changes

[pub/Android/ownCloud.git] / src / eu / alefzero / webdav / WebdavClient.java

diff --git a/src/eu/alefzero/webdav/WebdavClient.java b/src/eu/alefzero/webdav/WebdavClient.java
index 797bad4..f3aca3e 100644 (file)
--- a/src/eu/alefzero/webdav/WebdavClient.java
+++ b/src/eu/alefzero/webdav/WebdavClient.java
@@ -21,32 +21,26 @@ import java.io.BufferedInputStream;
 import java.io.File;\r
 import java.io.FileOutputStream;\r
 import java.io.IOException;\r
 import java.io.File;\r
 import java.io.FileOutputStream;\r
 import java.io.IOException;\r

-import java.util.HashMap;\r
+import java.io.InputStream;\r

 \r
 import org.apache.commons.httpclient.Credentials;\r
 import org.apache.commons.httpclient.HttpClient;\r
 \r
 import org.apache.commons.httpclient.Credentials;\r
 import org.apache.commons.httpclient.HttpClient;\r

+import org.apache.commons.httpclient.HttpConnectionManager;\r

 import org.apache.commons.httpclient.HttpException;\r
 import org.apache.commons.httpclient.HttpException;\r

+import org.apache.commons.httpclient.HttpMethodBase;\r
+import org.apache.commons.httpclient.HttpVersion;\r

 import org.apache.commons.httpclient.UsernamePasswordCredentials;\r
 import org.apache.commons.httpclient.auth.AuthScope;\r
 import org.apache.commons.httpclient.methods.GetMethod;\r
 import org.apache.commons.httpclient.methods.HeadMethod;\r
 import org.apache.commons.httpclient.methods.PutMethod;\r
 import org.apache.commons.httpclient.params.HttpMethodParams;\r
 import org.apache.commons.httpclient.UsernamePasswordCredentials;\r
 import org.apache.commons.httpclient.auth.AuthScope;\r
 import org.apache.commons.httpclient.methods.GetMethod;\r
 import org.apache.commons.httpclient.methods.HeadMethod;\r
 import org.apache.commons.httpclient.methods.PutMethod;\r
 import org.apache.commons.httpclient.params.HttpMethodParams;\r

-import org.apache.commons.httpclient.protocol.Protocol;\r

 import org.apache.http.HttpStatus;\r
 import org.apache.http.HttpStatus;\r

+import org.apache.http.params.CoreProtocolPNames;\r

 import org.apache.jackrabbit.webdav.client.methods.DavMethod;\r
 import org.apache.jackrabbit.webdav.client.methods.DeleteMethod;\r
 import org.apache.jackrabbit.webdav.client.methods.MkColMethod;\r
 \r
 import org.apache.jackrabbit.webdav.client.methods.DavMethod;\r
 import org.apache.jackrabbit.webdav.client.methods.DeleteMethod;\r
 import org.apache.jackrabbit.webdav.client.methods.MkColMethod;\r
 \r

-import eu.alefzero.owncloud.AccountUtils;\r
-import eu.alefzero.owncloud.authenticator.AccountAuthenticator;\r
-import eu.alefzero.owncloud.authenticator.EasySSLSocketFactory;\r
-import eu.alefzero.owncloud.files.interfaces.OnDatatransferProgressListener;\r
-import eu.alefzero.owncloud.utils.OwnCloudVersion;\r
-\r
-import android.accounts.Account;\r
-import android.accounts.AccountManager;\r
-import android.content.Context;\r

 import android.net.Uri;\r
 import android.util.Log;\r
 \r
 import android.net.Uri;\r
 import android.util.Log;\r
 \r


@@ -55,34 +49,18 @@ public class WebdavClient extends HttpClient {
     private Credentials mCredentials;\r
     final private static String TAG = "WebdavClient";\r
     private static final String USER_AGENT = "Android-ownCloud";\r
     private Credentials mCredentials;\r
     final private static String TAG = "WebdavClient";\r
     private static final String USER_AGENT = "Android-ownCloud";\r

+    \r

     private OnDatatransferProgressListener mDataTransferListener;\r
     private OnDatatransferProgressListener mDataTransferListener;\r

-    private static HashMap<String, WebdavClient> clients = new HashMap<String, WebdavClient>();\r
+    static private byte[] sExhaustBuffer = new byte[1024];\r

     \r
     /**\r
     \r
     /**\r

-     * Gets a WebdavClient setup for the current account\r
-     * @param account The client accout\r
-     * @param context The application context\r
-     * @return\r
+     * Constructor\r

      */\r
      */\r

-    public static synchronized WebdavClient getInstance(Account account, Context context){\r
-        WebdavClient instance = clients.get(account.name);\r
-        if(instance == null ){\r
-            OwnCloudVersion ownCloudVersion = new OwnCloudVersion(AccountManager.get(context).getUserData(account,\r
-                    AccountAuthenticator.KEY_OC_VERSION));\r
-            String baseUrl = AccountManager.get(context).getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL);\r
-            String webDavPath = AccountUtils.getWebdavPath(ownCloudVersion);\r
-            WebdavClient client = new WebdavClient();\r
-            \r
-            String username = account.name.substring(0, account.name.indexOf('@'));\r
-            String password = AccountManager.get(context).getPassword(account);\r
-            \r
-            client.mUri = Uri.parse(baseUrl + webDavPath);\r
-            client.getParams().setParameter(HttpMethodParams.USER_AGENT, USER_AGENT);\r
-            client.setCredentials(username, password);\r
-            client.allowSelfsignedCertificates();\r
-            clients.put(account.name, client);\r
-        }\r
-        return instance;\r
+    public WebdavClient(HttpConnectionManager connectionMgr) {\r
+        super(connectionMgr);\r
+        Log.d(TAG, "Creating WebdavClient");\r
+        getParams().setParameter(HttpMethodParams.USER_AGENT, USER_AGENT);\r
+        getParams().setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);\r

     }\r
 \r
     public void setCredentials(String username, String password) {\r
     }\r
 \r
     public void setCredentials(String username, String password) {\r


@@ -96,133 +74,267 @@ public class WebdavClient extends HttpClient {
             mCredentials = new UsernamePasswordCredentials(username, password);\r
         return mCredentials;\r
     }\r
             mCredentials = new UsernamePasswordCredentials(username, password);\r
         return mCredentials;\r
     }\r

-\r
-    public void allowSelfsignedCertificates() {\r
-        // https\r
-        Protocol.registerProtocol("https", new Protocol("https",\r
-                new EasySSLSocketFactory(), 443));\r
-    }\r
-\r
-    public boolean downloadFile(String remoteFilepath, File targetPath) {\r
-        // HttpGet get = new HttpGet(mUri.toString() + filepath.replace(" ",\r
-        // "%20"));\r
-        /* dvelasco - this is not necessary anymore; OCFile.mRemotePath (the origin of remoteFielPath) keeps valid URL strings\r
-        String[] splitted_filepath = remoteFilepath.split("/");\r
-        remoteFilepath = "";\r
-        for (String s : splitted_filepath) {\r
-            if (s.equals("")) continue;\r
-            remoteFilepath += "/" + URLEncoder.encode(s);\r
-        }\r
-\r
-        Log.e("ASD", mUri.toString() + remoteFilepath.replace(" ", "%20") + "");\r
-        GetMethod get = new GetMethod(mUri.toString()\r
-                + remoteFilepath.replace(" ", "%20"));\r
-        */\r
-        GetMethod get = new GetMethod(mUri.toString() + remoteFilepath);\r
-\r
-        // get.setHeader("Host", mUri.getHost());\r
-        // get.setHeader("User-Agent", "Android-ownCloud");\r
+    \r
+    /**\r
+     * Downloads a file in remoteFilepath to the local targetPath.\r
+     * \r
+     * @param remoteFilepath    Path to the file in the remote server, URL DECODED. \r
+     * @param targetFile        Local path to save the downloaded file.\r
+     * @return                  'True' when the file is successfully downloaded.\r
+     */\r
+    public boolean downloadFile(String remoteFilePath, File targetFile) {\r
+        boolean ret = false;\r
+        GetMethod get = new GetMethod(mUri.toString() + WebdavUtils.encodePath(remoteFilePath));\r

 \r
         try {\r
             int status = executeMethod(get);\r
 \r
         try {\r
             int status = executeMethod(get);\r

-            Log.e(TAG, "status return: " + status);\r
-            if (status != HttpStatus.SC_OK) {\r
-                return false;\r
+            if (status == HttpStatus.SC_OK) {\r
+                targetFile.createNewFile();\r
+                BufferedInputStream bis = new BufferedInputStream(\r
+                        get.getResponseBodyAsStream());\r
+                FileOutputStream fos = new FileOutputStream(targetFile);\r
+\r
+                byte[] bytes = new byte[4096];\r
+                int readResult;\r
+                while ((readResult = bis.read(bytes)) != -1) {\r
+                    if (mDataTransferListener != null)\r
+                        mDataTransferListener.transferProgress(readResult);\r
+                    fos.write(bytes, 0, readResult);\r
+                }\r
+                fos.close();\r
+                ret = true;\r
+            } else {\r
+                exhaustResponse(get.getResponseBodyAsStream());\r

             }\r
             }\r

-            BufferedInputStream bis = new BufferedInputStream(\r
-                    get.getResponseBodyAsStream());\r
-            FileOutputStream fos = new FileOutputStream(targetPath);\r
-\r
-            byte[] bytes = new byte[4096];\r
-            int readResult;\r
-            while ((readResult = bis.read(bytes)) != -1) {\r
-                if (mDataTransferListener != null)\r
-                    mDataTransferListener.transferProgress(readResult);\r
-                fos.write(bytes, 0, readResult);\r
+            Log.e(TAG, "Download of " + remoteFilePath + " to " + targetFile + " finished with HTTP status " + status + (!ret?"(FAIL)":""));\r
+        } catch (Exception e) {\r
+            logException(e, "dowloading " + remoteFilePath);\r
+            \r
+        } finally {\r
+            if (!ret && targetFile.exists()) {\r
+                targetFile.delete();\r

             }\r
             }\r

-\r
-        } catch (IOException e) {\r
-            e.printStackTrace();\r
-            return false;\r
+            get.releaseConnection();    // let the connection available for other methods\r

         }\r
         }\r

-        return true;\r
+        return ret;\r

     }\r
     \r
     /**\r
      * Deletes a remote file via webdav\r
     }\r
     \r
     /**\r
      * Deletes a remote file via webdav\r

-     * @param remoteFilePath\r
+     * @param remoteFilePath       Remote file path of the file to delete, in URL DECODED format.\r

      * @return\r
      */\r
      * @return\r
      */\r

-    public boolean deleteFile(String remoteFilePath){\r
-        DavMethod delete = new DeleteMethod(mUri.toString() + remoteFilePath);\r
+    public boolean deleteFile(String remoteFilePath) {\r
+        boolean ret = false;\r
+        DavMethod delete = new DeleteMethod(mUri.toString() + WebdavUtils.encodePath(remoteFilePath));\r

         try {\r
         try {\r

-            executeMethod(delete);\r
-        }  catch (IOException e) {\r
-            Log.e(TAG, "Logging failed with error: " + e.getMessage(), e);\r
-            return false;\r
+            int status = executeMethod(delete);\r
+            ret = (status == HttpStatus.SC_OK || status == HttpStatus.SC_ACCEPTED || status == HttpStatus.SC_NO_CONTENT);\r
+            exhaustResponse(delete.getResponseBodyAsStream());\r
+            \r
+            Log.e(TAG, "DELETE of " + remoteFilePath + " finished with HTTP status " + status +  (!ret?"(FAIL)":""));\r
+            \r
+        } catch (Exception e) {\r
+            logException(e, "deleting " + remoteFilePath);\r
+            \r
+        } finally {\r
+            delete.releaseConnection();    // let the connection available for other methods\r

         }\r
         }\r

-        return true;\r
+        return ret;\r

     }\r
 \r
     }\r
 \r

+    \r

     public void setDataTransferProgressListener(OnDatatransferProgressListener listener) {\r
         mDataTransferListener = listener;\r
     }\r
     \r
     public void setDataTransferProgressListener(OnDatatransferProgressListener listener) {\r
         mDataTransferListener = listener;\r
     }\r
     \r

-    public boolean putFile(String localFile, String remoteTarget,\r
-            String contentType) {\r
-        boolean result = true;\r
-\r
+    /**\r
+     * Creates or update a file in the remote server with the contents of a local file.\r
+     * \r
+     * @param localFile         Path to the local file to upload.\r
+     * @param remoteTarget      Remote path to the file to create or update, URL DECODED\r
+     * @param contentType       MIME type of the file.\r
+     * @return                  Status HTTP code returned by the server.\r
+     * @throws IOException      When a transport error that could not be recovered occurred while uploading the file to the server.\r
+     * @throws HttpException    When a violation of the HTTP protocol occurred. \r
+     */\r
+    public int putFile(String localFile, String remoteTarget, String contentType) throws HttpException, IOException {\r
+        int status = -1;\r
+        PutMethod put = new PutMethod(mUri.toString() + WebdavUtils.encodePath(remoteTarget));\r
+        \r

         try {\r
         try {\r

-            Log.e("ASD", contentType + "");\r

             File f = new File(localFile);\r
             FileRequestEntity entity = new FileRequestEntity(f, contentType);\r
             entity.setOnDatatransferProgressListener(mDataTransferListener);\r
             File f = new File(localFile);\r
             FileRequestEntity entity = new FileRequestEntity(f, contentType);\r
             entity.setOnDatatransferProgressListener(mDataTransferListener);\r

-            Log.e("ASD", f.exists() + " " + entity.getContentLength());\r
-            PutMethod put = new PutMethod(mUri.toString() + remoteTarget);\r

             put.setRequestEntity(entity);\r
             put.setRequestEntity(entity);\r

-            Log.d(TAG, "" + put.getURI().toString());\r
-            int status = executeMethod(put);\r
-            Log.d(TAG, "PUT method return with status " + status);\r
-\r
-            Log.i(TAG, "Uploading, done");\r
-        } catch (final Exception e) {\r
-            Log.i(TAG, "" + e.getMessage());\r
-            result = false;\r
+            status = executeMethod(put);\r
+            \r
+            exhaustResponse(put.getResponseBodyAsStream());\r
+            \r
+        } finally {\r
+            put.releaseConnection();    // let the connection available for other methods\r

         }\r
         }\r

-\r
-        return result;\r
+        return status;\r

     }\r
     }\r

-\r
+    \r

     /**\r
     /**\r

-     * Tries to log in to the given WedDavURI, with the given credentials\r
-     * @param uri To test\r
-     * @param username Username to check\r
-     * @param password Password to verify\r
+     * Tries to log in to the current URI, with the current credentials\r
+     * \r

      * @return A {@link HttpStatus}-Code of the result. SC_OK is good.\r
      */\r
      * @return A {@link HttpStatus}-Code of the result. SC_OK is good.\r
      */\r

-    public int tryToLogin(Uri uri, String username, String password) {\r
-        int returnCode = 0;\r
-        setCredentials(username, password);\r
-        HeadMethod head = new HeadMethod(uri.toString());\r
+    public int tryToLogin() {\r
+        int status = 0;\r
+        HeadMethod head = new HeadMethod(mUri.toString());\r

         try {\r
         try {\r

-            returnCode = executeMethod(head);\r
+            status = executeMethod(head);\r
+            boolean result = status == HttpStatus.SC_OK;\r
+            Log.d(TAG, "HEAD for " + mUri + " finished with HTTP status " + status + (!result?"(FAIL)":""));\r
+            exhaustResponse(head.getResponseBodyAsStream());\r
+            \r

         } catch (Exception e) {\r
         } catch (Exception e) {\r

-            Log.e(TAG, "Error: " + e.getMessage());\r
+            logException(e, "trying to login at " + mUri.toString());\r
+            \r
+        } finally {\r
+            head.releaseConnection();\r

         }\r
         }\r

-        return returnCode;\r
+        return status;\r

     }\r
 \r
     }\r
 \r

+    /**\r
+     * Creates a remote directory with the received path.\r
+     * \r
+     * @param path      Path of the directory to create, URL DECODED\r
+     * @return          'True' when the directory is successfully created\r
+     */\r

     public boolean createDirectory(String path) {\r
     public boolean createDirectory(String path) {\r

+        boolean result = false;\r
+        int status = -1;\r
+        MkColMethod mkcol = new MkColMethod(mUri.toString() + WebdavUtils.encodePath(path));\r
+        try {\r
+            Log.d(TAG, "Creating directory " + path);\r
+            status = executeMethod(mkcol);\r
+            Log.d(TAG, "Status returned: " + status);\r
+            result = mkcol.succeeded();\r
+            \r
+            Log.d(TAG, "MKCOL to " + path + " finished with HTTP status " + status + (!result?"(FAIL)":""));\r
+            exhaustResponse(mkcol.getResponseBodyAsStream());\r
+            \r
+        } catch (Exception e) {\r
+            logException(e, "creating directory " + path);\r
+            \r
+        } finally {\r
+            mkcol.releaseConnection();    // let the connection available for other methods\r
+        }\r
+        return result;\r
+    }\r
+    \r
+    \r
+    /**\r
+     * Check if a file exists in the OC server\r
+     * \r
+     * @return              'true' if the file exists; 'false' it doesn't exist\r
+     * @throws  Exception   When the existence could not be determined\r
+     */\r
+    public boolean existsFile(String path) throws IOException, HttpException {\r
+        HeadMethod head = new HeadMethod(mUri.toString() + WebdavUtils.encodePath(path));\r
+        try {\r
+            int status = executeMethod(head);\r
+            Log.d(TAG, "HEAD to " + path + " finished with HTTP status " + status + ((status != HttpStatus.SC_OK)?"(FAIL)":""));\r
+            exhaustResponse(head.getResponseBodyAsStream());\r
+            return (status == HttpStatus.SC_OK);\r
+            \r
+        } finally {\r
+            head.releaseConnection();    // let the connection available for other methods\r
+        }\r
+    }\r
+\r
+\r
+    /**\r
+     * Requests the received method with the received timeout (milliseconds).\r
+     * \r
+     * Executes the method through the inherited HttpClient.executedMethod(method).\r
+     * \r
+     * Sets the socket and connection timeouts only for the method received.\r
+     * \r
+     * The timeouts are both in milliseconds; 0 means 'infinite'; < 0 means 'do not change the default'\r
+     * \r
+     * @param method            HTTP method request.\r
+     * @param readTimeout       Timeout to set for data reception\r
+     * @param conntionTimout    Timeout to set for connection establishment\r
+     */\r
+    public int executeMethod(HttpMethodBase method, int readTimeout, int connectionTimeout) throws HttpException, IOException {\r
+        int oldSoTimeout = getParams().getSoTimeout();\r
+        int oldConnectionTimeout = getHttpConnectionManager().getParams().getConnectionTimeout();\r

         try {\r
         try {\r

-            MkColMethod mkcol = new MkColMethod(mUri.toString() + path);\r
-            int status = executeMethod(mkcol);\r
-            Log.d(TAG, "Status returned " + status);\r
-            Log.d(TAG, "uri: " + mkcol.getURI().toString());\r
-            Log.i(TAG, "Creating dir completed");\r
-        } catch (final Exception e) {\r
-            e.printStackTrace();\r
-            return false;\r
+            if (readTimeout >= 0) { \r
+                method.getParams().setSoTimeout(readTimeout);   // this should be enough...\r
+                getParams().setSoTimeout(readTimeout);          // ... but this looks like necessary for HTTPS\r
+            }\r
+            if (connectionTimeout >= 0) {\r
+                getHttpConnectionManager().getParams().setConnectionTimeout(connectionTimeout);\r
+            }\r
+            return executeMethod(method);\r
+        } finally {\r
+            getParams().setSoTimeout(oldSoTimeout);\r
+            getHttpConnectionManager().getParams().setConnectionTimeout(oldConnectionTimeout);\r

         }\r
         }\r

-        return true;\r

     }\r
     }\r

+\r
+    /**\r
+     * Exhausts a not interesting HTTP response. Encouraged by HttpClient documentation.\r
+     * \r
+     * @param responseBodyAsStream      InputStream with the HTTP response to exhaust.\r
+     */\r
+    public void exhaustResponse(InputStream responseBodyAsStream) {\r
+        if (responseBodyAsStream != null) {\r
+            try {\r
+                while (responseBodyAsStream.read(sExhaustBuffer) >= 0);\r
+                responseBodyAsStream.close();\r
+            \r
+            } catch (IOException io) {\r
+                Log.e(TAG, "Unexpected exception while exhausting not interesting HTTP response; will be IGNORED", io);\r
+            }\r
+        }\r
+    }\r
+\r
+\r
+    /**\r
+     * Logs an exception triggered in a HTTP request. \r
+     * \r
+     * @param e         Caught exception.\r
+     * @param doing     Suffix to add at the end of the logged message.\r
+     */\r
+    private void logException(Exception e, String doing) {\r
+        if (e instanceof HttpException) {\r
+            Log.e(TAG, "HTTP violation while " + doing, e);\r
+\r
+        } else if (e instanceof IOException) {\r
+            Log.e(TAG, "Unrecovered transport exception while " + doing, e);\r
+\r
+        } else {\r
+            Log.e(TAG, "Unexpected exception while " + doing, e);\r
+        }\r
+    }\r
+\r
+    \r
+    /**\r
+     * Sets the connection and wait-for-data timeouts to be applied by default to the methods performed by this client.\r
+     */\r
+    public void setDefaultTimeouts(int defaultDataTimeout, int defaultConnectionTimeout) {\r
+            getParams().setSoTimeout(defaultDataTimeout);\r
+            getHttpConnectionManager().getParams().setConnectionTimeout(defaultConnectionTimeout);\r
+    }\r
+\r
+    /**\r
+     * Sets the base URI for the helper methods that receive paths as parameters, instead of full URLs\r
+     * @param uri\r
+     */\r
+    public void setBaseUri(Uri uri) {\r
+        mUri = uri;\r
+    }\r
+\r
+    public Uri getBaseUri() {\r
+        return mUri;\r
+    }\r
+    \r

 }\r
 }\r