protected bool IsSafeUrl(string urlString, HtmlAttributeId htmlAttrId)
{
string absoluteUrl = this.GetAbsoluteUrl(urlString, htmlAttrId);
OwaSafeHtmlOutboundCallbacks.TypeOfUrl typeOfUrl = this.GetTypeOfUrl(absoluteUrl, htmlAttrId);
return(typeOfUrl != OwaSafeHtmlOutboundCallbacks.TypeOfUrl.Unknown);
}
protected void ProcessHtmlUrlTag(HtmlTagContextAttribute filterAttribute, HtmlTagContext context, HtmlWriter writer)
{
OwaSafeHtmlOutboundCallbacks.TypeOfUrl typeOfUrl = this.GetTypeOfUrl(filterAttribute.Value, filterAttribute.Id);
string text;
if (typeOfUrl == OwaSafeHtmlOutboundCallbacks.TypeOfUrl.Unknown || typeOfUrl == OwaSafeHtmlOutboundCallbacks.TypeOfUrl.Local)
{
if (this.baseRef == null && this.isConversationsOrUnknownType && !this.triedLoadingBaseHref)
{
OwaLightweightHtmlCallback owaLightweightHtmlCallback = new OwaLightweightHtmlCallback();
using (Item item = Utilities.GetItem <Item>(this.owaContext.UserContext, this.itemId, new PropertyDefinition[0]))
{
BodyReadConfiguration bodyReadConfiguration = new BodyReadConfiguration(BodyFormat.TextHtml, "utf-8");
bodyReadConfiguration.SetHtmlOptions(HtmlStreamingFlags.FilterHtml, owaLightweightHtmlCallback);
Body body = item.Body;
if (this.owaContext.UserContext.IsIrmEnabled)
{
Utilities.IrmDecryptIfRestricted(item, this.owaContext.UserContext, true);
if (Utilities.IsIrmRestrictedAndDecrypted(item))
{
body = ((RightsManagedMessageItem)item).ProtectedBody;
}
}
using (TextReader textReader = body.OpenTextReader(bodyReadConfiguration))
{
int num = 5000;
char[] buffer = new char[num];
textReader.Read(buffer, 0, num);
}
}
this.baseRef = owaLightweightHtmlCallback.BaseRef;
this.triedLoadingBaseHref = true;
}
text = this.GetAbsoluteUrl(filterAttribute.Value, filterAttribute.Id);
typeOfUrl = this.GetTypeOfUrl(text, filterAttribute.Id);
}
else
{
text = filterAttribute.Value;
}
switch (typeOfUrl)
{
case OwaSafeHtmlOutboundCallbacks.TypeOfUrl.Local:
if (this.owaContext.UserContext.BrowserType != BrowserType.Safari && !this.owaContext.UserContext.IsBasicExperience && !this.isConversations)
{
writer.WriteAttribute(filterAttribute.Id, OwaSafeHtmlCallbackBase.JSLocalLink + OwaSafeHtmlCallbackBase.JSMethodPrefix + filterAttribute.Value.Substring(1) + OwaSafeHtmlCallbackBase.JSMethodSuffix);
return;
}
filterAttribute.Write();
return;
case OwaSafeHtmlOutboundCallbacks.TypeOfUrl.Trusted:
filterAttribute.Write();
this.hasFoundNonLocalUrlInCurrentPass = true;
return;
case OwaSafeHtmlOutboundCallbacks.TypeOfUrl.Redirection:
filterAttribute.WriteName();
writer.WriteAttributeValue(Redir.BuildRedirUrl(this.owaContext.UserContext, text));
this.hasFoundNonLocalUrlInCurrentPass = true;
return;
case OwaSafeHtmlOutboundCallbacks.TypeOfUrl.Unknown:
writer.WriteAttribute(filterAttribute.Id, OwaSafeHtmlOutboundCallbacks.BlockedUrlPageValue);
this.hasFoundNonLocalUrlInCurrentPass = true;
return;
default:
return;
}
}
