I have a server application using a TCP listener mechanism with SSL over it using SslStream class, very much similar to what is described in this thread: Tcpip listener sockets SSL streams so much confusion
Our clients, however, are mobile devices of all OS's (iOS, Android etc). I have a server side certificate, but all I really want from my clients as authentication is a 开发者_运维知识库user/pwd string pair given with Basic Authentication protocol.
If the initial connection from the client provides me with these credentials, all is well - I parse the request, extract them and do my checks. If however they are not supplied - how do I ask for them?
The HTTP status code 401 along with the WWW-Authenticate: Basic header is used to prompt the HTTP client to send the username/password string as can be seen in this example
Client request (no authentication):
GET /private/index.html HTTP/1.11
Host: localhost
Server response:
HTTP/1.1 401 Authorization Required
Server: HTTPd/1.0
Date: Sat, 27 Nov 2004 10:18:15 GMT
WWW-Authenticate: Basic realm="Secure Area"
Content-Type: text/html
Content-Length: 311
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
<HTML>
<HEAD>
<TITLE>Error</TITLE>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=ISO-8859-1">
</HEAD>
<BODY><H1>401 Unauthorized.</H1></BODY>
</HTML>
Client request (user name "Aladdin", password "open sesame"):
GET /private/index.html HTTP/1.1
Host: localhost
Authorization: Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ==
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