2019-05-15 14:56:09 +00:00
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/*
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*
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* (c) Copyright Ascensio System Limited 2010-2018
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*
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* This program is freeware. You can redistribute it and/or modify it under the terms of the GNU
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* General Public License (GPL) version 3 as published by the Free Software Foundation (https://www.gnu.org/copyleft/gpl.html).
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* In accordance with Section 7(a) of the GNU GPL its Section 15 shall be amended to the effect that
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* Ascensio System SIA expressly excludes the warranty of non-infringement of any third-party rights.
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*
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* THIS PROGRAM IS DISTRIBUTED WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY OR
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* FITNESS FOR A PARTICULAR PURPOSE. For more details, see GNU GPL at https://www.gnu.org/copyleft/gpl.html
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*
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* You can contact Ascensio System SIA by email at sales@onlyoffice.com
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*
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* The interactive user interfaces in modified source and object code versions of ONLYOFFICE must display
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* Appropriate Legal Notices, as required under Section 5 of the GNU GPL version 3.
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*
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* Pursuant to Section 7 § 3(b) of the GNU GPL you must retain the original ONLYOFFICE logo which contains
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* relevant author attributions when distributing the software. If the display of the logo in its graphic
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* form is not reasonably feasible for technical reasons, you must include the words "Powered by ONLYOFFICE"
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* in every copy of the program you distribute.
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* Pursuant to Section 7 § 3(e) we decline to grant you any rights under trademark law for use of our trademarks.
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*
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*/
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.IO;
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2019-08-15 12:04:42 +00:00
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using System.Text;
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using NVelocity;
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using NVelocity.App;
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using NVelocity.Runtime.Resource.Loader;
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2019-05-15 14:56:09 +00:00
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namespace ASC.Common.Utils
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{
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public class TextLoader : ResourceLoader
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{
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public override void Init(Commons.Collections.ExtendedProperties configuration)
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{
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//nothing to configure
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}
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public override Stream GetResourceStream(string source)
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{
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return new MemoryStream(Encoding.UTF8.GetBytes(source));
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}
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public override long GetLastModified(NVelocity.Runtime.Resource.Resource resource)
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{
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return 1;
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}
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public override bool IsSourceModified(NVelocity.Runtime.Resource.Resource resource)
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{
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return false;
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}
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}
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public class VelocityFormatter
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{
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private static bool initialized;
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private static readonly ConcurrentDictionary<string, Template> patterns = new ConcurrentDictionary<string, Template>();
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public static string FormatText(string templateText, IDictionary<string, object> values)
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{
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var nvelocityContext = new VelocityContext();
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foreach (var tagValue in values)
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nvelocityContext.Put(tagValue.Key, tagValue.Value);
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return FormatText(templateText, nvelocityContext);
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}
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public static string FormatText(string templateText, VelocityContext context)
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{
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if (!initialized)
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{
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var properties = new Commons.Collections.ExtendedProperties();
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properties.AddProperty("resource.loader", "custom");
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properties.AddProperty("custom.resource.loader.class", "ASC.Common.Utils.TextLoader; ASC.Common");
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properties.AddProperty("input.encoding", Encoding.UTF8.WebName);
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properties.AddProperty("output.encoding", Encoding.UTF8.WebName);
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Velocity.Init(properties);
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initialized = true;
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}
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2019-08-15 15:08:40 +00:00
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using var writer = new StringWriter();
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var key = templateText.GetHashCode().ToString();
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if (!patterns.TryGetValue(key, out var template))
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{
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template = Velocity.GetTemplate(templateText);
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patterns.TryAdd(key, template);
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}
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template.Merge(context, writer);
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return writer.GetStringBuilder().ToString();
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2019-05-15 14:56:09 +00:00
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}
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}
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}
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