private void RestoreInlineAttachment(HtmlTagContextAttribute filterAttribute, HtmlTagContext context, HtmlWriter writer)
{
string text = filterAttribute.Value;
string value = filterAttribute.Value;
text = HttpUtility.UrlDecode(text);
if (!string.IsNullOrEmpty(text))
{
int num = value.IndexOf(OwaSafeHtmlCallbackBase.AttachmentBaseUrl, StringComparison.Ordinal);
if (num != -1 && this.Item != null && this.Item.Id != null)
{
if (AttachmentUtility.VerifyInlineAttachmentUrlValidity(value, this.item))
{
int contentIdIndex;
string contentId = AttachmentUtility.ParseInlineAttachmentContentId(text, out contentIdIndex);
string attachmentIdString = AttachmentUtility.ParseInlineAttachmentIdString(text, contentIdIndex);
AttachmentLink attachmentLink = AttachmentUtility.GetAttachmentLink(attachmentIdString, contentId, this.item, this);
if (attachmentLink != null)
{
filterAttribute.WriteName();
writer.WriteAttributeValue(this.inlineHTMLAttachmentScheme + AttachmentUtility.GetOrGenerateAttachContentId(attachmentLink));
return;
}
}
}
else
{
if (text.IndexOf(OwaSafeHtmlCallbackBase.blankImageFileName, StringComparison.Ordinal) != -1)
{
filterAttribute.WriteName();
writer.WriteAttributeValue(OwaSafeHtmlCallbackBase.DoubleBlank);
return;
}
filterAttribute.Write();
}
}
}