mirror of
https://github.com/ShareX/ShareX.git
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235 lines
No EOL
8.4 KiB
C#
235 lines
No EOL
8.4 KiB
C#
#region License Information (GPL v3)
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/*
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ShareX - A program that allows you to take screenshots and share any file type
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Copyright (c) 2007-2018 ShareX Team
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (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 Street, Fifth Floor, Boston, MA 02110-1301, USA.
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Optionally you can also view the license at <http://www.gnu.org/licenses/>.
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*/
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#endregion License Information (GPL v3)
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using ShareX.HelpersLib;
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using ShareX.HistoryLib.Properties;
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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.Text;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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using System.Xml;
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using System.Xml.Linq;
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namespace ShareX.HistoryLib
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{
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public class HistoryManager
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{
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private static readonly object thisLock = new object();
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public string FilePath { get; private set; }
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public string BackupFolder { get; set; }
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public bool CreateBackup { get; set; }
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public bool CreateWeeklyBackup { get; set; }
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public HistoryManager(string filePath)
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{
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FilePath = filePath;
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}
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public List<HistoryItem> GetHistoryItems()
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{
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try
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{
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return Load();
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}
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catch (Exception e)
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{
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DebugHelper.WriteException(e);
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MessageBox.Show(string.Format(Resources.HistoryManager_GetHistoryItems_Error_occured_while_reading_XML_file___0_, FilePath) + "\r\n\r\n" + e,
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"ShareX - " + Resources.HistoryManager_GetHistoryItems_Error, MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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return new List<HistoryItem>();
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}
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public bool AppendHistoryItem(HistoryItem historyItem)
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{
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try
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{
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if (IsValidHistoryItem(historyItem))
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{
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return Append(historyItem);
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}
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}
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catch (Exception e)
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{
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DebugHelper.WriteException(e);
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}
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return false;
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}
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private bool IsValidHistoryItem(HistoryItem historyItem)
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{
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return historyItem != null && !string.IsNullOrEmpty(historyItem.Filename) && historyItem.DateTime != DateTime.MinValue &&
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(!string.IsNullOrEmpty(historyItem.URL) || !string.IsNullOrEmpty(historyItem.Filepath));
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}
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private List<HistoryItem> Load()
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{
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List<HistoryItem> historyItemList = new List<HistoryItem>();
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if (!string.IsNullOrEmpty(FilePath) && File.Exists(FilePath))
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{
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lock (thisLock)
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{
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XmlReaderSettings settings = new XmlReaderSettings
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{
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ConformanceLevel = ConformanceLevel.Auto,
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IgnoreWhitespace = true
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};
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using (StreamReader streamReader = new StreamReader(FilePath, Encoding.UTF8))
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using (XmlReader reader = XmlReader.Create(streamReader, settings))
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{
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reader.MoveToContent();
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while (!reader.EOF)
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{
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if (reader.NodeType == XmlNodeType.Element && reader.Name == "HistoryItem")
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{
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XElement element = XNode.ReadFrom(reader) as XElement;
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if (element != null)
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{
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HistoryItem hi = ParseHistoryItem(element);
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historyItemList.Add(hi);
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}
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}
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else
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{
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reader.Read();
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}
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}
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}
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}
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}
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return historyItemList;
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}
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private bool Append(params HistoryItem[] historyItems)
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{
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if (!string.IsNullOrEmpty(FilePath))
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{
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lock (thisLock)
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{
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Helpers.CreateDirectoryFromFilePath(FilePath);
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using (FileStream fs = File.Open(FilePath, FileMode.Append, FileAccess.Write, FileShare.Read))
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using (XmlTextWriter writer = new XmlTextWriter(fs, Encoding.UTF8))
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{
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writer.Formatting = Formatting.Indented;
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writer.Indentation = 4;
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foreach (HistoryItem historyItem in historyItems)
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{
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writer.WriteStartElement("HistoryItem");
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writer.WriteElementIfNotEmpty("Filename", historyItem.Filename);
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writer.WriteElementIfNotEmpty("Filepath", historyItem.Filepath);
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writer.WriteElementIfNotEmpty("DateTimeUtc", historyItem.DateTime.ToString("o"));
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writer.WriteElementIfNotEmpty("Type", historyItem.Type);
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writer.WriteElementIfNotEmpty("Host", historyItem.Host);
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writer.WriteElementIfNotEmpty("URL", historyItem.URL);
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writer.WriteElementIfNotEmpty("ThumbnailURL", historyItem.ThumbnailURL);
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writer.WriteElementIfNotEmpty("DeletionURL", historyItem.DeletionURL);
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writer.WriteElementIfNotEmpty("ShortenedURL", historyItem.ShortenedURL);
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writer.WriteEndElement();
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}
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writer.WriteWhitespace(Environment.NewLine);
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}
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if (!string.IsNullOrEmpty(BackupFolder))
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{
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if (CreateBackup)
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{
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Helpers.CopyFile(FilePath, BackupFolder);
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}
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if (CreateWeeklyBackup)
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{
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Helpers.BackupFileWeekly(FilePath, BackupFolder);
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}
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}
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}
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return true;
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}
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return false;
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}
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private HistoryItem ParseHistoryItem(XElement element)
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{
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HistoryItem hi = new HistoryItem();
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foreach (XElement child in element.Elements())
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{
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string name = child.Name.LocalName;
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switch (name)
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{
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case "Filename":
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hi.Filename = child.Value;
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break;
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case "Filepath":
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hi.Filepath = child.Value;
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break;
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case "DateTimeUtc":
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DateTime dateTime;
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if (DateTime.TryParse(child.Value, out dateTime))
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{
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hi.DateTime = dateTime;
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}
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break;
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case "Type":
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hi.Type = child.Value;
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break;
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case "Host":
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hi.Host = child.Value;
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break;
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case "URL":
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hi.URL = child.Value;
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break;
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case "ThumbnailURL":
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hi.ThumbnailURL = child.Value;
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break;
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case "DeletionURL":
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hi.DeletionURL = child.Value;
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break;
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case "ShortenedURL":
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hi.ShortenedURL = child.Value;
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break;
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}
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}
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return hi;
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}
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}
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} |