/// <summary>
/// Iterates through the provided HTML and fixes up image URLs.
/// </summary>
/// <param name="html">The HTML to iterate through.</param>
/// <param name="sourceUrl">The source URL that the HTML originated from.</param>
/// <returns>The fixed up HTML.</returns>
public string FixImageReferences(string html, string sourceUrl)
{
if (html == null)
{
throw new ArgumentNullException("html");
}
if (sourceUrl == null)
{
throw new ArgumentNullException("sourceUrl");
}
StringBuilder sb = new StringBuilder();
using (StringWriter writer = new StringWriter(sb, CultureInfo.InvariantCulture))
{
if (HtmlHandler.IsSharedCanvasTempUrl(sourceUrl))
{
HtmlReferenceFixer fixer = new HtmlReferenceFixer(html);
fixer.FixReferences(writer, _internalReferenceFixer, null);
}
else
{
return(html);
}
}
return(sb.ToString());
}
/// <summary>
/// Iterates through the provided HTML and fixes up image URLs.
/// </summary>
/// <param name="html">The HTML to iterate through.</param>
/// <param name="sourceUrl">The source URL that the HTML originated from.</param>
/// <returns>The fixed up HTML.</returns>
public string FixImageReferences(string html, string sourceUrl)
{
if (html == null)
{
throw new ArgumentNullException("html");
}
if (sourceUrl == null)
{
throw new ArgumentNullException("sourceUrl");
}
StringBuilder sb = new StringBuilder();
using (StringWriter writer = new StringWriter(sb, CultureInfo.InvariantCulture))
{
if (HtmlHandler.IsSharedCanvasTempUrl(sourceUrl))
{
HtmlReferenceFixer fixer = new HtmlReferenceFixer(html);
fixer.FixReferences(writer, _internalReferenceFixer, null);
}
else
{
return html;
}
}
return sb.ToString();
}
private void CalculateReferencesForPublish()
{
//calculate references in the html content
string postContents = _editingContext.BlogPost.Contents;
HtmlReferenceFixer.FixReferences(postContents, new ReferenceFixer(AddHtmlReference));
}
private static void ConvertImageReferencesToLocal(IBlogPostEditingContext editingContext)
{
ImageReferenceFixer refFixer = new ImageReferenceFixer(editingContext.ImageDataList, editingContext.BlogId);
// Create a text writer that the new html will be written to
TextWriter htmlWriter = new StringWriter(CultureInfo.InvariantCulture);
// Check an html image fixer that will find references and rewrite them to new paths
HtmlReferenceFixer referenceFixer = new HtmlReferenceFixer(editingContext.BlogPost.Contents);
// We need to update the editing context when we change an image
ContextImageReferenceFixer contextFixer = new ContextImageReferenceFixer(editingContext);
// Do the fixing
referenceFixer.FixReferences(htmlWriter, new ReferenceFixer(refFixer.FixImageReferences), contextFixer.ReferenceFixedCallback);
// Write back the new html
editingContext.BlogPost.Contents = htmlWriter.ToString();
}
private void CalculateReferencesForSave()
{
//calculate references in the html content
string postContents = _editingContext.BlogPost.Contents;
HtmlReferenceFixer.FixReferences(postContents, new ReferenceFixer(AddHtmlReference));
//calculate the images referenced by the HTML
AddImageReferences(_editingContext.ImageDataList);
//calculate files referenced by plugins
foreach (BlogPostExtensionData extensionData in _editingContext.ExtensionDataList.CalculateReferencedExtensionData(postContents))
{
foreach (string fileId in extensionData.FileIds)
{
ISupportingFile file = extensionData.GetSupportingFile(fileId);
if (file != null)
{
AddReference(file);
}
}
}
}