[Libreoffice-commits] online.git: loolwsd/LOOLWSD.cpp loolwsd/Storage.hpp

[Ashod Nakashian]

 loolwsd/LOOLWSD.cpp |    1 
 loolwsd/Storage.hpp |   84 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 85 insertions(+)

New commits:
commit 13f9b7a2dbd88974fb328498ae31bf1910d7f982
Author: Ashod Nakashian <ashod.nakashian at collabora.co.uk>
Date:   Fri Feb 19 16:19:15 2016 -0500

    loolwsd: Storage Abstraction support
    
    An abstract Storage abstraction class is added.
    There will be a factory to instantiate concrete
    implementation for a given backend.
    
    For WebDAV and similar hosted backends, authentication
    and authorization will be done by the implementation
    with the help of the Auth abstraction.
    
    Change-Id: I38ec5dad4c2c4ce16df30d65826df96751b10e2d
    Reviewed-on: https://gerrit.libreoffice.org/22513
    Reviewed-by: Ashod Nakashian <ashnakash at gmail.com>
    Tested-by: Ashod Nakashian <ashnakash at gmail.com>

diff --git a/loolwsd/LOOLWSD.cpp b/loolwsd/LOOLWSD.cpp
index 75a83b2..276c5fe 100644
--- a/loolwsd/LOOLWSD.cpp
+++ b/loolwsd/LOOLWSD.cpp
@@ -111,6 +111,7 @@ DEALINGS IN THE SOFTWARE.
 #include "ChildProcessSession.hpp"
 #include "LOOLWSD.hpp"
 #include "QueueHandler.hpp"
+#include "Storage.hpp"
 #include "Util.hpp"
 
 using namespace LOOLProtocol;
diff --git a/loolwsd/Storage.hpp b/loolwsd/Storage.hpp
new file mode 100644
index 0000000..7597783
--- /dev/null
+++ b/loolwsd/Storage.hpp
@@ -0,0 +1,84 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+// Storage abstraction.
+#ifndef INCLUDED_STORAGE_HPP
+#define INCLUDED_STORAGE_HPP
+
+#include <string>
+
+#include "Auth.hpp"
+#include "Util.hpp"
+
+/// Base class of all Storage abstractions.
+class StorageBase
+{
+public:
+
+    /// Returns a local file path given a URI.
+    /// If necessary copies the file locally first.
+    virtual std::string getFilePathFromURI(const std::string& uri) = 0;
+
+    /// Writes the contents of the file back to the URI.
+    virtual bool restoreFileToURI(const std::string& path, const std::string& uri) = 0;
+
+};
+
+/// Trivial implementation of local storage that does not need do anything.
+class LocalStorage : public StorageBase
+{
+public:
+
+    std::string getFilePathFromURI(const std::string& uri) override
+    {
+        // It's local already.
+        // TODO: Validate access?
+        return uri;
+    }
+
+    bool restoreFileToURI(const std::string& path, const std::string& uri)
+    {
+        // Nothing to do.
+        (void)path;
+        (void)uri;
+        return false;
+    }
+};
+
+class WebDAVStorage : public StorageBase
+{
+public:
+
+    WebDAVStorage(const std::string& url, std::unique_ptr<AuthBase> authAgent) :
+        _url(url),
+        _authAgent(std::move(authAgent))
+    {
+    }
+
+    std::string getFilePathFromURI(const std::string& uri) override
+    {
+        // TODO: implement webdav GET.
+        return uri;
+    }
+
+    bool restoreFileToURI(const std::string& path, const std::string& uri)
+    {
+        // TODO: implement webdav PUT.
+        (void)path;
+        (void)uri;
+        return false;
+    }
+
+private:
+    const std::string _url;
+    std::unique_ptr<AuthBase> _authAgent;
+};
+
+#endif
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */