| Returns the String that should be included in the HTTP
Authorization field. Return null if no info was
supplied or could be found.
Example:
--> GET http://www.authorization-required.com/ HTTP/1.0
<-- HTTP/1.0 403 Unauthorized
<-- WWW-Authenticate: Basic realm="WallyWorld"
call schemeSupported("Basic"); (return true)
call authString(u, "Basic", "WallyWorld", null);
return "QWadhgWERghghWERfdfQ=="
--> GET http://www.authorization-required.com/ HTTP/1.0
--> Authorization: Basic QWadhgWERghghWERfdfQ==
<-- HTTP/1.0 200 OK
Parameters:
u - the resource URL
Parameters:
scheme - the authentication scheme, Basic, or Digest
Parameters:
realm - the security realm to authenticate in a valid authorization header using the scheme in the realm |
