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# 30dec24 Software Lab. Alexander Burger
# *Salt *Login *Users *Perms
# crypt(3) algorithm, e.g. (setq *Salt (16 . "$6$@1$"))
(de passwd (Str Salt)
(if *Salt
(native "libcrypt.so" "crypt" 'S Str (or Salt (salt)))
Str ) )
(de salt ()
(text (cdr *Salt) (randpw (car *Salt))) )
(de randpw (Len)
(make
(in "/dev/urandom"
(do Len
(link
(get
'`(mapcar char
(conc
(range (char ".") (char "9"))
(range (char "A") (char "Z"))
(range (char "a") (char "z")) ) )
(inc (& 63 (rd 1))) ) ) ) ) ) )
(de auth (Nm Pw Cls)
(with (db 'nm (or Cls '+User) Nm)
(and
(: pw 0)
(= @ (passwd Pw @))
This ) ) )
### Login ###
(de login (Nm Pw Cls)
(ifn (setq *Login (auth Nm Pw Cls))
(msg *Pid " ? " Nm)
(msg *Pid " * " (stamp) " " Nm)
(tell 'hi *Pid Nm *Adr)
(push1 '*Bye '(logout))
(when *Timeout
(timeout (setq *Timeout `(* 3600 1000))) ) )
*Login )
(de logout ()
(when *Login
(rollback)
(off *Login)
(tell 'hi *Pid)
(msg *Pid " / " (stamp))
(when *Timeout
(timeout (setq *Timeout `(* 300 1000))) ) ) )
(de hi (Pid Nm Adr)
(if (and Nm (= Nm (; *Login nm)) (= Adr *Adr))
(bye)
(hi2 Pid Nm)
(tell 'hi2 *Pid (; *Login nm)) ) )
(de hi2 (Pid Nm)
(if2 Nm (lup *Users Pid)
(con @ Nm)
(idx '*Users (cons Pid Nm) T)
(idx '*Users @ NIL) ) )
### Role ###
(class +Role +Entity)
(rel nm (+Need +Key +String)) # Role name
(rel perm (+List +Symbol)) # Permission list
(rel usr (+List +Joint) role (+User)) # Associated users
(allow "@lib/role.l")
(dm url> (Tab)
(and (may RoleAdmin) (list "@lib/role.l" '*ID This)) )
### User ###
(class +User +Entity)
(rel nm (+Need +Key +String)) # User name
(rel pw (+Swap +String)) # Password
(rel role (+Joint) usr (+Role)) # User role
(rel nam (+String)) # Full Name
(rel tel (+String)) # Phone
(rel em (+String)) # E-Mail
(allow "@lib/user.l")
(dm url> (Tab)
(and
(or (may UserAdmin) (== *Login This))
(list "@lib/user.l" '*ID This) ) )
(dm gui> (This)
(<grid> 2
,"Full Name" (gui '(+E/R +TextField) '(nam : home obj) 40)
,"Phone" (gui '(+E/R +TelField) '(tel : home obj) 40)
,"E-Mail" (gui '(+E/R +MailField) '(em : home obj) 40) ) )
(dm login> ())
### Permission management ###
(de permission Lst
(while Lst
(queue '*Perms (car Lst))
(def (++ Lst) (++ Lst)) ) )
(de may Args
(mmeq Args (; *Login role perm)) )
(de must Args
(unless
(if (cdr Args)
(find
'((X)
(if (atom X)
(memq X (; *Login role perm))
(eval X) ) )
@ )
*Login )
(forbidden (car Args)) ) )
### GUI ###
(de choUser (Dst)
(choDlg Dst ,"Users" '(nm +User)) )
(de loginForm "Opt"
(form NIL
(when "Opt"
(eval (car "Opt"))
(----) )
(<grid> 2
,"Name" (gui 'nm '(+Focus +Able +TextField) '(not *Login) 20)
,"Password" (gui 'pw '(+Able +PwField) '(not *Login) 20) )
(--)
(gui '(+Button) '(if *Login ,"logout" ,"login")
'(cond
(*Login (post (logout)))
((login (val> (: home nm)) (val> (: home pw)))
(post
(clr> (: home pw))
(login> *Login) ) )
(T (error ,"Permission denied")) ) )
(when *Login
(<nbsp> 4)
(<span> "bold green"
(ht:Prin "'" (; *Login nm) ,"' logged in") ) )
(when "Opt"
(----)
(htPrin (cdr "Opt")) ) ) )
(class +PasswdField +E/R +Fmt +TextField)
(dm T @
(pass super
'(pw : home obj)
'((V) (and V "****"))
'((V)
(if (= V "****")
(: home obj pw 0)
(passwd V (: home obj pw 0)) ) ) ) )
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