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添加项目文件。

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Zel
2025-01-22 23:31:03 +08:00
parent 1b8ba6771f
commit 2ae76476fb
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153
TightWiki.Engine.Implementation/InternalLinkHandler.cs Normal file
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using TightWiki.Engine.Library;
using TightWiki.Engine.Library.Interfaces;
using TightWiki.Library;
using TightWiki.Models;
using TightWiki.Repository;
using static TightWiki.Engine.Library.Constants;
namespace TightWiki.Engine.Implementation
{
/// <summary>
/// Handles links from one wiki page to another.
/// </summary>
public class InternalLinkHandler : IInternalLinkHandler
{
/// <summary>
/// Handles an internal wiki link.
/// </summary>
/// <param name="state">Reference to the wiki state object</param>
/// <param name="pageNavigation">The navigation for the linked page.</param>
/// <param name="pageName">The name of the page being linked to.</param>
/// <param name="linkText">The text which should be show in the absence of an image.</param>
/// <param name="image">The image that should be shown.</param>
/// <param name="imageScale">The 0-100 image scale factor for the given image.</param>
public HandlerResult Handle(ITightEngineState state, NamespaceNavigation pageNavigation,
string pageName, string linkText, string? image, int imageScale)
{
var page = PageRepository.GetPageRevisionByNavigation(pageNavigation);
if (page == null)
{
if (state.Session?.CanCreate == true)
{
if (image != null)
{
string href;
if (image.StartsWith("http://", StringComparison.InvariantCultureIgnoreCase)
|| image.StartsWith("https://", StringComparison.InvariantCultureIgnoreCase))
{
//The image is external.
href = $"<a href=\"{GlobalConfiguration.BasePath}/Page/Create?Name={pageName}\"><img src=\"{GlobalConfiguration.BasePath}{image}?Scale={imageScale}\" /></a>";
}
else if (image.Contains('/'))
{
//The image is located on another page.
href = $"<a href=\"{GlobalConfiguration.BasePath}/Page/Create?Name={pageName}\"><img src=\"{GlobalConfiguration.BasePath}/Page/Image/{image}?Scale={imageScale}\" /></a>";
}
else
{
//The image is located on this page, but this page does not exist.
href = $"<a href=\"{GlobalConfiguration.BasePath}/Page/Create?Name={pageName}\">{linkText}</a>";
}
return new HandlerResult(href)
{
Instructions = [HandlerResultInstruction.DisallowNestedProcessing]
};
}
else if (linkText != null)
{
var href = $"<a href=\"{GlobalConfiguration.BasePath}/Page/Create?Name={pageName}\">{linkText}</a>"
+ "<font color=\"#cc0000\" size=\"2\">?</font>";
return new HandlerResult(href)
{
Instructions = [HandlerResultInstruction.DisallowNestedProcessing]
};
}
else
{
throw new Exception("No link or image was specified.");
}
}
else
{
//The page does not exist and the user does not have permission to create it.
if (image != null)
{
string mockHref;
if (image.StartsWith("http://", StringComparison.InvariantCultureIgnoreCase)
|| image.StartsWith("https://", StringComparison.InvariantCultureIgnoreCase))
{
//The image is external.
mockHref = $"<img src=\"{GlobalConfiguration.BasePath}{image}?Scale={imageScale}\" />";
}
else if (image.Contains('/'))
{
//The image is located on another page.
mockHref = $"<img src=\"{GlobalConfiguration.BasePath}/Page/Image/{image}?Scale={imageScale}\" />";
}
else
{
//The image is located on this page, but this page does not exist.
mockHref = $"linkText";
}
return new HandlerResult(mockHref)
{
Instructions = [HandlerResultInstruction.DisallowNestedProcessing]
};
}
else if (linkText != null)
{
return new HandlerResult(linkText)
{
Instructions = [HandlerResultInstruction.DisallowNestedProcessing]
};
}
else
{
throw new Exception("No link or image was specified.");
}
}
}
else
{
string href;
if (image != null)
{
if (image.StartsWith("http://", StringComparison.InvariantCultureIgnoreCase)
|| image.StartsWith("https://", StringComparison.InvariantCultureIgnoreCase))
{
//The image is external.
href = $"<a href=\"{GlobalConfiguration.BasePath}/{page.Navigation}\"><img src=\"{GlobalConfiguration.BasePath}{image}\" /></a>";
}
else if (image.Contains('/'))
{
//The image is located on another page.
href = $"<a href=\"{GlobalConfiguration.BasePath}/{page.Navigation}\"><img src=\"{GlobalConfiguration.BasePath}/Page/Image/{image}?Scale={imageScale}\" /></a>";
}
else
{
//The image is located on this page.
href = $"<a href=\"{GlobalConfiguration.BasePath}/{page.Navigation}\"><img src=\"{GlobalConfiguration.BasePath}/Page/Image/{state.Page.Navigation}/{image}?Scale={imageScale}\" /></a>";
}
}
else
{
//Just a plain ol' internal page link.
href = $"<a href=\"{GlobalConfiguration.BasePath}/{page.Navigation}\">{linkText}</a>";
}
return new HandlerResult(href)
{
Instructions = [HandlerResultInstruction.DisallowNestedProcessing]
};
}
}
}
}