P2O-Vancouver-2021-ProxyShell-snippet-1.cs

protected override AnchorMailbox ResolveAnchorMailbox() { 
     
    if (this.skipTargetBackEndCalculation) { 
        base.Logger.Set(3, "OrgRelationship-Anonymous"); 
        return new AnonymousAnchorMailbox(this); 
    } 
 
    if (base.UseRoutingHintForAnchorMailbox) { 
        string text; 
        if (RequestPathParser.IsAutodiscoverV2PreviewRequest(base.ClientRequest.Url.AbsolutePath)) { 
            text = base.ClientRequest.Params["Email"]; 
        } else if (RequestPathParser.IsAutodiscoverV2Version1Request(base.ClientRequest.Url.AbsolutePath)) { 
            int num = base.ClientRequest.Url.AbsolutePath.LastIndexOf('/'); 
            text = base.ClientRequest.Url.AbsolutePath.Substring(num + 1); 
        } else { 
            text = this.TryGetExplicitLogonNode(0); 
        } 
         
        string text2; 
        if (ExplicitLogonParser.TryGetNormalizedExplicitLogonAddress(text, ref text2) && SmtpAddress.IsValidSmtpAddress(text2)) 
        { 
            this.isExplicitLogonRequest = true; 
            this.explicitLogonAddress = text; 
             
            //... 
        } 
    } 
    return base.ResolveAnchorMailbox(); 
} 
 
protected override UriBuilder GetClientUrlForProxy() { 
    string absoluteUri = base.ClientRequest.Url.AbsoluteUri; 
    string uri = absoluteUri; 
    if (this.isExplicitLogonRequest && !RequestPathParser.IsAutodiscoverV2Request(base.ClientRequest.Url.AbsoluteUri)) 
    { 
        uri = UrlHelper.RemoveExplicitLogonFromUrlAbsoluteUri(absoluteUri, this.explicitLogonAddress); 
    } 
    return new UriBuilder(uri); 
}