we no longer need to handle the Shared folder different from any other folder

apps/files/js/file-upload.js

 					var file = data.files[0];
 					try {
 						// FIXME: not so elegant... need to refactor that method to return a value
-						Files.isFileNameValid(file.name, FileList.getCurrentDirectory());
+						Files.isFileNameValid(file.name);
 					}
 					catch (errorMessage) {
 						data.textStatus = 'invalidcharacters';
 					throw t('files', 'URL cannot be empty');
 				} else if (type !== 'web' && !Files.isFileNameValid(filename)) {
 					// Files.isFileNameValid(filename) throws an exception itself
-				} else if (FileList.getCurrentDirectory() === '/' && filename.toLowerCase() === 'shared') {
-					throw t('files', 'In the home folder \'Shared\' is a reserved filename');
 				} else if (FileList.inList(filename)) {
 					throw t('files', '{new_name} already exists', {new_name: filename});
 				} else {

apps/files/js/fileactions.js

 		};
 
 		var addAction = function (name, action, displayName) {
-			// NOTE: Temporary fix to prevent rename action in root of Shared directory
-			if (name === 'Rename' && $('#dir').val() === '/Shared') {
-				return true;
-			}
 
 			if ((name === 'Download' || action !== defaultAction) && name !== 'Delete') {
 
 				addAction(name, ah, displayName);
 			}
 		});
-		if(actions.Share && !($('#dir').val() === '/' && file === 'Shared')){
+		if(actions.Share){
 			displayName = t('files', 'Share');
 			addAction('Share', actions.Share, displayName);
 		}
 	$('#fileList tr').each(function () {
 		FileActions.display($(this).children('td.filename'));
 	});
-	
+
 	$('#fileList').trigger(jQuery.Event("fileActionsReady"));
 
 });

apps/files/js/filelist.js

 			var filename = input.val();
 			if (filename !== oldname) {
 				// Files.isFileNameValid(filename) throws an exception itself
-				Files.isFileNameValid(filename, FileList.getCurrentDirectory());
+				Files.isFileNameValid(filename);
 				if (FileList.inList(filename)) {
 					throw t('files', '{new_name} already exists', {new_name: filename});
 				}

apps/files/js/files.js

 	 * Throws a string exception with an error message if
 	 * the file name is not valid
 	 */
-	isFileNameValid: function (name, root) {
+	isFileNameValid: function (name) {
 		var trimmedName = name.trim();
-		if (trimmedName === '.'
-				|| trimmedName === '..'
-				|| (root === '/' &&  trimmedName.toLowerCase() === 'shared'))
+		if (trimmedName === '.'	|| trimmedName === '..')
 		{
 			throw t('files', '"{name}" is an invalid file name.', {name: name});
 		} else if (trimmedName.length === 0) {

apps/files/lib/app.php

 			'data'		=> NULL
 		);
 
-		// rename to "/Shared" is denied
-		if( $dir === '/' and $newname === 'Shared' ) {
-			$result['data'] = array(
-				'message'	=> $this->l10n->t("Invalid folder name. Usage of 'Shared' is reserved.")
-			);
 		// rename to non-existing folder is denied
-		} else if (!$this->view->file_exists($dir)) {
+		if (!$this->view->file_exists($dir)) {
 			$result['data'] = array('message' => (string)$this->l10n->t(
 					'The target folder has been moved or deleted.',
 					array($dir)),
 				);
 		// rename to existing file is denied
 		} else if ($this->view->file_exists($dir . '/' . $newname)) {
-			
+
 			$result['data'] = array(
 				'message'	=> $this->l10n->t(
 						"The name %s is already used in the folder %s. Please choose a different name.",
 		} else if (
 			// rename to "." is denied
 			$newname !== '.' and
-			// rename of  "/Shared" is denied
-			!($dir === '/' and $oldname === 'Shared') and
 			// THEN try to rename
 			$this->view->rename($dir . '/' . $oldname, $dir . '/' . $newname)
 		) {

apps/files/tests/ajax_rename.php

 		\OC\Files\Filesystem::tearDown();
 	}
 
-	/**
-	 * @brief test rename of file/folder named "Shared"
-	 */
-	function testRenameSharedFolder() {
-		$dir = '/';
-		$oldname = 'Shared';
-		$newname = 'new_name';
-
-		$this->viewMock->expects($this->at(0))
-			->method('file_exists')
-			->with('/')
-			->will($this->returnValue(true));
-
-		$result = $this->files->rename($dir, $oldname, $newname);
-		$expected = array(
-			'success'	=> false,
-			'data'		=> array('message' => '%s could not be renamed')
-		);
-
-		$this->assertEquals($expected, $result);
-	}
-
-	/**
-	 * @brief test rename of file/folder named "Shared"
-	 */
-	function testRenameSharedFolderInSubdirectory() {
-		$dir = '/test';
-		$oldname = 'Shared';
-		$newname = 'new_name';
-
-		$this->viewMock->expects($this->at(0))
-			->method('file_exists')
-			->with('/test')
-			->will($this->returnValue(true));
-
-		$this->viewMock->expects($this->any())
-			->method('getFileInfo')
-			->will($this->returnValue(new \OC\Files\FileInfo(
-				'/test',
-				null,
-				'/test',	
-				array(
-				'fileid' => 123,
-				'type' => 'dir',
-				'mimetype' => 'httpd/unix-directory',
-				'mtime' => 0,
-				'permissions' => 31,
-				'size' => 18,
-				'etag' => 'abcdef',
-				'directory' => '/',
-				'name' => 'new_name',
-			))));
-
-		$result = $this->files->rename($dir, $oldname, $newname);
-
-		$this->assertTrue($result['success']);
-		$this->assertEquals(123, $result['data']['id']);
-		$this->assertEquals('new_name', $result['data']['name']);
-		$this->assertEquals(18, $result['data']['size']);
-		$this->assertEquals('httpd/unix-directory', $result['data']['mimetype']);
-		$icon = \OC_Helper::mimetypeIcon('dir');
-		$icon = substr($icon, 0, -3) . 'svg';
-		$this->assertEquals($icon, $result['data']['icon']);
-	}
-
-	/**
-	 * @brief test rename of file/folder to "Shared"
-	 */
-	function testRenameFolderToShared() {
-		$dir = '/';
-		$oldname = 'oldname';
-		$newname = 'Shared';
-
-		$result = $this->files->rename($dir, $oldname, $newname);
-		$expected = array(
-			'success'	=> false,
-			'data'		=> array('message' => "Invalid folder name. Usage of 'Shared' is reserved.")
-		);
-
-		$this->assertEquals($expected, $result);
-	}
-
 	/**
 	 * @brief test rename of file/folder
 	 */

apps/files/tests/js/filesSpec.js

 				expect(error).toEqual(false);
 			}
 		});
-		it('Validates correct file names do not create Shared folder in root', function() {
-			// create shared file in subfolder
-			var error = false;
-			try {
-				expect(Files.isFileNameValid('shared', '/foo')).toEqual(true);
-				expect(Files.isFileNameValid('Shared', '/foo')).toEqual(true);
-			}
-			catch (e) {
-				error = e;
-			}
-			expect(error).toEqual(false);
-
-			// create shared file in root
-			var threwException = false;
-			try {
-				Files.isFileNameValid('Shared', '/');
-				console.error('Invalid file name not detected');
-			}
-			catch (e) {
-				threwException = true;
-			}
-			expect(threwException).toEqual(true);
-
-			// create shared file in root
-			var threwException = false;
-			try {
-				Files.isFileNameValid('shared', '/');
-				console.error('Invalid file name not detected');
-			}
-			catch (e) {
-				threwException = true;
-			}
-			expect(threwException).toEqual(true);
-
-		});
 		it('Detects invalid file names', function() {
 			var fileNames = [
 				'',

lib/private/connector/sabre/directory.php

 	 */
 	public function createFile($name, $data = null) {
 
-		if (strtolower($name) === 'shared' && empty($this->path)) {
-			throw new \Sabre_DAV_Exception_Forbidden();
-		}
-
 		// for chunked upload also updating a existing file is a "createFile"
 		// because we create all the chunks before reasamble them to the existing file.
 		if (isset($_SERVER['HTTP_OC_CHUNKED'])) {
 	 */
 	public function createDirectory($name) {
 
-		if (strtolower($name) === 'shared' && empty($this->path)) {
-			throw new \Sabre_DAV_Exception_Forbidden();
-		}
-
 		if (!\OC\Files\Filesystem::isCreatable($this->path)) {
 			throw new \Sabre_DAV_Exception_Forbidden();
 		}
 	 */
 	public function delete() {
 
-		if ($this->path === 'Shared') {
-			throw new \Sabre_DAV_Exception_Forbidden();
-		}
-
 		if (!\OC\Files\Filesystem::isDeletable($this->path)) {
 			throw new \Sabre_DAV_Exception_Forbidden();
 		}

lib/private/connector/sabre/file.php

 		// mark file as partial while uploading (ignored by the scanner)
 		$partpath = $this->path . '.ocTransferId' . rand() . '.part';
 
-		// if file is located in /Shared we write the part file to the users
-		// root folder because we can't create new files in /shared
-		// we extend the name with a random number to avoid overwriting a existing file
-		if (dirname($partpath) === 'Shared') {
-			$partpath = pathinfo($partpath, PATHINFO_FILENAME) . rand() . '.part';
-		}
-
 		try {
 			$putOkay = $fs->file_put_contents($partpath, $data);
 			if ($putOkay === false) {
 	public function delete() {
 		$fs = $this->getFS();
 
-		if ($this->path === 'Shared') {
-			throw new \Sabre_DAV_Exception_Forbidden();
-		}
-
 		if (!$fs->isDeletable($this->path)) {
 			throw new \Sabre_DAV_Exception_Forbidden();
 		}

lib/private/connector/sabre/objecttree.php

 		}
 		if ($sourceDir !== $destinationDir) {
 			// for a full move we need update privileges on sourcePath and sourceDir as well as destinationDir
-			if (ltrim($destinationDir, '/') === '' && strtolower($sourceNode->getName()) === 'shared') {
-				throw new \Sabre_DAV_Exception_Forbidden();
-			}
 			if (!$fs->isUpdatable($sourceDir)) {
 				throw new \Sabre_DAV_Exception_Forbidden();
 			}