Fixed bug when turning tablet with no file in the right fragment
[pub/Android/ownCloud.git] / src / com / owncloud / android / operations / SynchronizeFolderOperation.java
index 12e7f3f..843da11 100644 (file)
@@ -1,10 +1,9 @@
 /* ownCloud Android client application
- *   Copyright (C) 2012 Bartek Przybylski
+ *   Copyright (C) 2012-2013 ownCloud Inc.
  *
  *   This program is free software: you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation, either version 3 of the License, or
- *   (at your option) any later version.
+ *   it under the terms of the GNU General Public License version 2,
+ *   as published by the Free Software Foundation.
  *
  *   This program is distributed in the hope that it will be useful,
  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 
 package com.owncloud.android.operations;
 
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 import java.util.Vector;
 
 import org.apache.http.HttpStatus;
@@ -29,6 +36,7 @@ import android.accounts.Account;
 import android.content.Context;
 import android.util.Log;
 
+import com.owncloud.android.Log_OC;
 import com.owncloud.android.datamodel.DataStorageManager;
 import com.owncloud.android.datamodel.OCFile;
 import com.owncloud.android.operations.RemoteOperationResult.ResultCode;
@@ -72,6 +80,8 @@ public class SynchronizeFolderOperation extends RemoteOperation {
     private int mConflictsFound;
 
     private int mFailsInFavouritesFound;
+
+    private Map<String, String> mForgottenLocalFiles;
     
     
     public SynchronizeFolderOperation(  String remotePath, 
@@ -86,6 +96,7 @@ public class SynchronizeFolderOperation extends RemoteOperation {
         mStorageManager = dataStorageManager;
         mAccount = account;
         mContext = context;
+        mForgottenLocalFiles = new HashMap<String, String>();
     }
     
     
@@ -97,6 +108,10 @@ public class SynchronizeFolderOperation extends RemoteOperation {
         return mFailsInFavouritesFound;
     }
     
+    public Map<String, String> getForgottenLocalFiles() {
+        return mForgottenLocalFiles;
+    }
+    
     /**
      * Returns the list of files and folders contained in the synchronized folder, if called after synchronization is complete.
      * 
@@ -112,11 +127,12 @@ public class SynchronizeFolderOperation extends RemoteOperation {
         RemoteOperationResult result = null;
         mFailsInFavouritesFound = 0;
         mConflictsFound = 0;
+        mForgottenLocalFiles.clear();
         
         // code before in FileSyncAdapter.fetchData
         PropFindMethod query = null;
         try {
-            Log.d(TAG, "Synchronizing " + mAccount.name + ", fetching files in " + mRemotePath);
+            Log_OC.d(TAG, "Synchronizing " + mAccount.name + ", fetching files in " + mRemotePath);
             
             // remote request 
             query = new PropFindMethod(client.getBaseUri() + WebdavUtils.encodePath(mRemotePath));
@@ -138,27 +154,42 @@ public class SynchronizeFolderOperation extends RemoteOperation {
                 List<OCFile> updatedFiles = new Vector<OCFile>(resp.getResponses().length - 1);
                 List<SynchronizeFileOperation> filesToSyncContents = new Vector<SynchronizeFileOperation>();
                 for (int i = 1; i < resp.getResponses().length; ++i) {
+                    /// new OCFile instance with the data from the server
                     WebdavEntry we = new WebdavEntry(resp.getResponses()[i], client.getBaseUri().getPath());
                     OCFile file = fillOCFile(we);
+                    
+                    /// set data about local state, keeping unchanged former data if existing
+                    file.setLastSyncDateForProperties(mCurrentSyncTime);
                     OCFile oldFile = mStorageManager.getFileByPath(file.getRemotePath());
                     if (oldFile != null) {
                         file.setKeepInSync(oldFile.keepInSync());
                         file.setLastSyncDateForData(oldFile.getLastSyncDateForData());
-                        if (file.keepInSync()) {
-                            //disableObservance(file);        // first disable observer so we won't get file upload right after download
-                            //                                // now, the FileDownloader service sends a broadcast before start a download; the FileObserverService is listening for it
-                            //requestFileSynchronization(file, oldFile, client);
-                            SynchronizeFileOperation operation = new SynchronizeFileOperation(  oldFile,        
-                                                                                                file, 
-                                                                                                mStorageManager,
-                                                                                                mAccount,       
-                                                                                                true, 
-                                                                                                false,          
-                                                                                                mContext
-                                                                                                );
-                            filesToSyncContents.add(operation);
+                        file.setModificationTimestampAtLastSyncForData(oldFile.getModificationTimestampAtLastSyncForData());    // must be kept unchanged when the file contents are not updated
+                        checkAndFixForeignStoragePath(oldFile);
+                        file.setStoragePath(oldFile.getStoragePath());
+                    }
+
+                    /// scan default location if local copy of file is not linked in OCFile instance
+                    if (file.getStoragePath() == null && !file.isDirectory()) {
+                        File f = new File(FileStorageUtils.getDefaultSavePathFor(mAccount.name, file));
+                        if (f.exists()) {
+                            file.setStoragePath(f.getAbsolutePath());
+                            file.setLastSyncDateForData(f.lastModified());
                         }
                     }
+                    
+                    /// prepare content synchronization for kept-in-sync files
+                    if (file.keepInSync()) {
+                        SynchronizeFileOperation operation = new SynchronizeFileOperation(  oldFile,        
+                                                                                            file, 
+                                                                                            mStorageManager,
+                                                                                            mAccount,       
+                                                                                            true, 
+                                                                                            false,          
+                                                                                            mContext
+                                                                                            );
+                        filesToSyncContents.add(operation);
+                    }
                 
                     updatedFiles.add(file);
                 }
@@ -178,9 +209,9 @@ public class SynchronizeFolderOperation extends RemoteOperation {
                         } else {
                             mFailsInFavouritesFound++;
                             if (contentsResult.getException() != null) {
-                                Log.d(TAG, "Error while synchronizing favourites : " +  contentsResult.getLogMessage(), contentsResult.getException());
+                                Log_OC.d(TAG, "Error while synchronizing favourites : " +  contentsResult.getLogMessage(), contentsResult.getException());
                             } else {
-                                Log.d(TAG, "Error while synchronizing favourites : " + contentsResult.getLogMessage());
+                                Log_OC.d(TAG, "Error while synchronizing favourites : " + contentsResult.getLogMessage());
                             }
                         }
                     }   // won't let these fails break the synchronization process
@@ -194,7 +225,7 @@ public class SynchronizeFolderOperation extends RemoteOperation {
                 for (int i=0; i < mChildren.size(); ) {
                     file = mChildren.get(i);
                     if (file.getLastSyncDateForProperties() != mCurrentSyncTime) {
-                        Log.d(TAG, "removing file: " + file);
+                        Log_OC.d(TAG, "removing file: " + file);
                         mStorageManager.removeFile(file, (file.isDown() && file.getStoragePath().startsWith(currentSavePath)));
                         mChildren.remove(i);
                     } else {
@@ -217,12 +248,12 @@ public class SynchronizeFolderOperation extends RemoteOperation {
             } else {
                 result = new RemoteOperationResult(false, status);
             }
-            Log.i(TAG, "Synchronizing " + mAccount.name + ", folder " + mRemotePath + ": " + result.getLogMessage());
+            Log_OC.i(TAG, "Synchronizing " + mAccount.name + ", folder " + mRemotePath + ": " + result.getLogMessage());
             
             
         } catch (Exception e) {
             result = new RemoteOperationResult(e);
-            Log.e(TAG, "Synchronizing " + mAccount.name + ", folder " + mRemotePath + ": " + result.getLogMessage(), result.getException());
+            Log_OC.e(TAG, "Synchronizing " + mAccount.name + ", folder " + mRemotePath + ": " + result.getLogMessage(), result.getException());
 
         } finally {
             if (query != null)
@@ -249,11 +280,74 @@ public class SynchronizeFolderOperation extends RemoteOperation {
         file.setCreationTimestamp(we.createTimestamp());
         file.setFileLength(we.contentLength());
         file.setMimetype(we.contentType());
-        file.setModificationTimestamp(we.modifiedTimesamp());
-        file.setLastSyncDateForProperties(mCurrentSyncTime);
+        file.setModificationTimestamp(we.modifiedTimestamp());
         file.setParentId(mParentId);
         return file;
     }
     
 
+    /**
+     * Checks the storage path of the OCFile received as parameter. If it's out of the local ownCloud folder,
+     * tries to copy the file inside it. 
+     * 
+     * If the copy fails, the link to the local file is nullified. The account of forgotten files is kept in 
+     * {@link #mForgottenLocalFiles}
+     * 
+     * @param file      File to check and fix.
+     */
+    private void checkAndFixForeignStoragePath(OCFile file) {
+        String storagePath = file.getStoragePath();
+        String expectedPath = FileStorageUtils.getDefaultSavePathFor(mAccount.name, file);
+        if (storagePath != null && !storagePath.equals(expectedPath)) {
+            /// fix storagePaths out of the local ownCloud folder
+            File originalFile = new File(storagePath);
+            if (FileStorageUtils.getUsableSpace(mAccount.name) < originalFile.length()) {
+                mForgottenLocalFiles.put(file.getRemotePath(), storagePath);
+                file.setStoragePath(null);
+                    
+            } else {
+                InputStream in = null;
+                OutputStream out = null;
+                try {
+                    File expectedFile = new File(expectedPath);
+                    File expectedParent = expectedFile.getParentFile();
+                    expectedParent.mkdirs();
+                    if (!expectedParent.isDirectory()) {
+                        throw new IOException("Unexpected error: parent directory could not be created");
+                    }
+                    expectedFile.createNewFile();
+                    if (!expectedFile.isFile()) {
+                        throw new IOException("Unexpected error: target file could not be created");
+                    }                    
+                    in = new FileInputStream(originalFile);
+                    out = new FileOutputStream(expectedFile);
+                    byte[] buf = new byte[1024];
+                    int len;
+                    while ((len = in.read(buf)) > 0){
+                        out.write(buf, 0, len);
+                    }
+                    file.setStoragePath(expectedPath);
+                    
+                } catch (Exception e) {
+                    Log_OC.e(TAG, "Exception while copying foreign file " + expectedPath, e);
+                    mForgottenLocalFiles.put(file.getRemotePath(), storagePath);
+                    file.setStoragePath(null);
+                    
+                } finally {
+                    try {
+                        if (in != null) in.close();
+                    } catch (Exception e) {
+                        Log_OC.d(TAG, "Weird exception while closing input stream for " + storagePath + " (ignoring)", e);
+                    }
+                    try {
+                        if (out != null) out.close();
+                    } catch (Exception e) {
+                        Log_OC.d(TAG, "Weird exception while closing output stream for " + expectedPath + " (ignoring)", e);
+                    }
+                }
+            }
+        }
+    }
+
+
 }