120 lines
3.7 KiB
C#
120 lines
3.7 KiB
C#
/*
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KeePass Password Safe - The Open-Source Password Manager
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Copyright (C) 2003-2013 Dominik Reichl <dominik.reichl@t-online.de>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Drawing;
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using KeePassLib;
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using KeePassLib.Interfaces;
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namespace KeePass.DataExchange
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{
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public abstract class FileFormatProvider
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{
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public abstract bool SupportsImport { get; }
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public abstract bool SupportsExport { get; }
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public abstract string FormatName { get; }
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public virtual string DisplayName
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{
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get { return this.FormatName; }
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}
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/// <summary>
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/// Default file name extension, without leading dot.
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/// If there are multiple default/equivalent extensions
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/// (like e.g. "html" and "htm"), specify all of them
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/// separated by a '|' (e.g. "html|htm").
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/// </summary>
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public virtual string DefaultExtension
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{
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get { return string.Empty; }
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}
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public virtual bool RequiresFile
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{
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get { return true; }
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}
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public virtual bool SupportsUuids
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{
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get { return false; }
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}
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public virtual bool RequiresKey
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{
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get { return false; }
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}
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/// <summary>
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/// This property specifies if entries are only appended to the
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/// end of the root group. This is true for example if the
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/// file format doesn't support groups (i.e. no hierarchy).
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/// </summary>
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public virtual bool ImportAppendsToRootGroupOnly
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{
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get { return false; }
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}
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/// <summary>
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/// Called before the <c>Export</c> method is invoked.
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/// </summary>
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/// <returns>Returns <c>true</c>, if the <c>Export</c> method
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/// can be invoked. If it returns <c>false</c>, something has
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/// failed and the export process should be aborted.</returns>
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public virtual bool TryBeginExport()
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{
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return true;
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}
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/// <summary>
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/// Import a stream into a database. Throws an exception if an error
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/// occurs. Do not call the base class method when overriding it.
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/// </summary>
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/// <param name="pwStorage">Data storage into which the data will be imported.</param>
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/// <param name="sInput">Input stream to read the data from.</param>
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/// <param name="slLogger">Status logger. May be <c>null</c>.</param>
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public abstract void Import(PwDatabase pwStorage, Stream sInput,
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IStatusLogger slLogger);
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/// <summary>
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/// Export data into a stream. Throws an exception if an error
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/// occurs (like writing to stream fails, etc.). Returns <c>true</c>,
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/// if the export was successful.
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/// </summary>
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/// <param name="pwExportInfo">Contains the data source and detailed
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/// information about which entries should be exported.</param>
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/// <param name="sOutput">Output stream to write the data to.</param>
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/// <param name="slLogger">Status logger. May be <c>null</c>.</param>
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/// <returns>Returns <c>false</c>, if the user has aborted the export
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/// process (like clicking Cancel in an additional export settings
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/// dialog).</returns>
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public virtual bool Export(PwExportInfo pwExportInfo, Stream sOutput,
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IStatusLogger slLogger)
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{
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throw new NotSupportedException();
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}
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}
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}
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