Use ELPA (Emacs) behind a proxy requiring authentication
authentication, elpa, emacs, emacs24, proxy
Solution
Emacs uses only `HOST` and `PORT` part from `http_proxy`.
I get authorization working without user interaction by:
(setq url-proxy-services
'(("no_proxy" . "^\\(localhost\\|10.*\\)")
("http" . "proxy.com:8080")
("https" . "proxy.com:8080")))
(setq url-http-proxy-basic-auth-storage
(list (list "proxy.com:8080"
(cons "Input your LDAP UID !"
(base64-encode-string "LOGIN:PASSWORD")))))
This works for Emacs 24.3. It is based on non-public API tricks, so might not work is another Emacs versions...
Replace `LOGIN` and `PASSWORD` with your auth info...
Also there is `url-http-proxy-digest-auth-storage`. Just fill prompt with authentication data and check which var used by Emacs (by `M-:` var `RET`)...
Problem
I have read this and this question. In both they say Emacs can deal with authentication, but it does not work for me. The question is: What is wrong? The Emacs version is 24.0.97-1, and it is running on 64-bit Linux. At work I have to use proxy server for any Internet connection. So I set the following environment variables: ``` http_proxy="http://username:password@ip:port" https_proxy="https://username:password@ip:port" ftp_proxy="ftp://username:password@ip:port" ``` This works and I can download packages without any problem. When I run `M-x package-refresh-contents` in Emacs it asks me for login and password for the proxy server, but it can not connect to the server. It even does not try to connect, i.e. after I type password and press `Enter` Emacs instantly reports: `Failed to download 'marmalade' archive` The same happens if I remove username and password from `http_proxy` variable or if I set `url-proxy-services` in Emacs (even if I unset the system variable).