http - How to retrieve a web page needing authentication in Emacs, can't get url.el to authenticate -

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i'm using following code:

(defvar xyz-user-name "login") (defvar xyz-password "pass") (defvar site "http://www.site.com/") (defvar xyz-block-authorisation nil  "flag whether block url.el's usual interactive authorisation procedure") (defadvice url-http-handle-authentication (around xyz-fix) (unless xyz-block-authorisation   ad-do-it)) (ad-activate 'url-http-handle-authentication) (defun login-show-posts ()    (interactive)    (let ((xyz-block-authorisation t)          (url-request-method "get")          (url-request-extra-headers                        `(("authorization" . ,(concat "basic "                                 (base64-encode-string                                  (concat xyz-user-name ":" xyz-password)))))))      (url-retrieve site                     (lambda (status)                    (switch-to-buffer (current-buffer))))))

but webpage text without authentication, i.e. didn't authenticate. how can make authenticate. i've been busting brains, reading on url-request-extra-headers find, can't done.

anyone?

thanks

jj


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