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!!! variables used (to check) : replacelist , up_xx for xx in replacelist and in firstname, lastname
!!! regvars_cnt  techvarlist and ???

uu=$wims_read_parm
!if user notwordof $wims_prefix
 wims_prefix=$wims_prefix user class
!endif
!default up_class=$wims_class
class_type=!defof class_type in wimshome/log/classes/$up_class/.def
!default class_type=0
!read adm/class/authchars
l=!text select $char_login in $uu
t=!char 1 of $uu
n=!charcnt $l
!if $class_type isin 01 and $wims_superclass=$empty
 regvarlist=!makelist regprop x for x=1 to $regvars_cnt
 regvarlist=!nospace $regvarlist
 replacelist=!append item $regvarlist to $replacelist
!else
 regvarlist=$empty
!endif

!if $l!=$uu or $t isin $char_punct or $n<$login_min or $n>$login_max
 !exit
!endif
uu=!translate internal . to @ in $uu
login_wims=$uu

!reset user_lastname,user_firstname,user_password,user_email,user_comments,user_photourl,\
    user_exists,user_participate,user_supervise,user_supervisable,user_external_auth
!for j in $regvarlist
   !if $(user_$j)!=$empty
     !reset user_$j
   !endif
!next j
!read adm/class/userdef classes,$up_class,$uu
!defread $userdef

!if $class_type isin 24 and $user_exists=yes and \
        (($user_supervisable!=yes and $up_supervisable=yes) or \
         ($user_supervisable=yes and $up_supervisable!=yes and supervisable \
         isitemof $replacelist))
 bad=!append item $uu to $bad
 !exit
!endif

!if $class_type isin 13
  !if $class_Supervisor=$wims_realuser
    !if $class_type=1 and $user_supervisable=yes
      replacelist=!listcomplement supervisable in $replacelist
    !else
      replacelist=!listcomplement participate,supervisable in $replacelist
    !endif
  !else
    replacelist=!listcomplement supervise,participate,supervisable in $replacelist
  !endif

!! only real supervisor of class (mean : creator) can modify teacher account (very important protection)
 !if $wims_user=supervisor and yes isin $user_supervisable $up_supervisable and $class_Supervisor!=$wims_realuser
   bad=!append item $uu to $bad
  !exit
 !endif

!! creator of class cannot loose manage acces
 !if $class_Supervisor=$uu and $wims_class notin $up_supervise
    up_supervise=!append item $wims_class to $up_supervise
 !endif

 !if $adduser_replace iswordof none nopass and $user_password!=$empty
  !if $wims_user iswordof supervisor $uu
   !default up_password=$user_password
  !endif
  p1=!word 1 of $user_password
  p1=!passcrypt $p1
  p2=!word 1 of $up_password
  p2=!passcrypt $p2
  !if $p1!=$p2
   bad=!append item $uu to $bad
   !exit
  !endif
 !endif
!endif

!if $user_exists= and email notitemof $replacelist
 replacelist=!append item email to $replacelist
!endif

up_exists=yes
!default up_supervisable=$user_supervisable
replace_=
!if $adduser_replace=none
 !goto next
!endif
!!!
!for n in lastname,firstname,email,regnum,comments,exists,supervise,supervisable,participate,photourl,\
  external_auth,agreecgu,$regvarlist,$techvarlist
  !if $n isitemof $replacelist,lastname,firstname,exists,supervisable,agreecgu,external_auth
   l_=!singlespace $(up_$n)
   !if $n=comments
        !readproc adm/class/mkcomment name
        !let vname=$n$scriptout
   !else
        !let vname=$n
   !endif
   !if ($(up_$n)!=$empty or $n=photourl) and $(up_$n)!=$(user_$vname)
    l_=!singlespace $(up_$n)
    !if $l_ issametext 
     l_=
    !endif
    !if $n iswordof participate supervise
     l_=!words2items $l_
     l__=
     !for a_ in $l_
       part_=!text select 1234567890/ in $a_
       part_test=!replace internal / by , in $part_
       !if $(part_test[1])=$wims_class or $(part_test[1])=$wims_superclass
        l__=!append item $part_ to $l__
       !endif
     !next a_
     !if $n iswordof participate
       !if $user_supervisable!=yes
        l_=!listuniq $l__,$(user_$n)
       !endif
    !else
        l_=!listuniq $l__
     !endif
    !else
      !if techvar isin $n
!!!FIXME add a test for validity or add the value to the possible values
      !endif
!!FIXME one can do l_=!detag $l ???
      !if $n isitemof $regvarlist
        l_=!detag $l_
      !endif
      l_=!replace , by &#44; in $l_
      l_=!replace < by &lt; in $l_
      l_=!translate internal "#*!$$ to $.....$ in $l_
    !endif
    !if $n isitemof comments,photourl,$regvarlist
     l_=!char 1 to 5000 of $l_
    !else
      !if $n iswordof participate supervise
        l_=!char 1 to 500 of $l_
      !else
        l_=!char 1 to 100 of $l_
      !endif
    !endif
    replace_=!append line !set user_$(vname)=$l_ to $replace_
  !endif
 !endif
!next n

!if $user_exists!=yes and \
        ($up_password=$empty or $up_lastname=$empty or $up_firstname=$empty)
 bad=!append item $uu to $bad
 !exit
!endif

:next
!! verification of user_participate and sharing (not needed for teacher account)
!if $class_type isin 13 and $up_class notitemof $user_participate and $user_supervisable!=yes
 typename=!defof class_typename in wimshome/log/classes/$up_class/.def
 !if $typename != $empty and $typename notwordof class course
  bad=!append item $uu to $bad
  !exit
 !endif
 !if $typename issametext course
  typename=!defof class_typename in wimshome/log/classes/$wims_class/.def
  !if $wims_class!=$empty and $typename issametext course and \
        $wims_class=$up_class and $wims_user=supervisor
   au_1=!translate internal / to , in $wims_class
   au_1=!translate internal , to / in $(au_1[1..-2])
   au_1=!nospace $au_1
   up_class=$au_1
   typename=!defof class_typename in wimshome/log/classes/$au_1/.def
  !endif
  !if $wims_class=$empty or $typename!=class or \
        ../$wims_superclass/ notin ../$up_class
   !exit
  !endif
  user_class=!replace internal ../$wims_superclass/ by in ../$wims_class
  user_course=!replace internal ../$wims_superclass/ by in ../$up_class
  au_test=!defof user_class in wimshome/log/classes/$up_class/.users/$uu
  !if $au_test!=$empty
   au_test=$wims_superclass/$au_test
   user_courses=!getdef user_courses in wimshome/log/classes/$au_test/.users/$uu
   user_courses=!listcomplement $user_course in $user_courses
   !setdef !set user_courses=$user_courses in wimshome/log/classes/$au_test/.users/$uu
  !endif
  !setdef !set user_class=$user_class in wimshome/log/classes/$up_class/.users/$uu
  user_courses=!getdef user_courses in wimshome/log/classes/$wims_class/.users/$uu
  user_courses=!listunion $user_courses and $user_course
  !setdef !set user_courses=$user_courses in wimshome/log/classes/$wims_class/.users/$uu
  change=!listunion $change and $uu
 !else
   !!if participate isitemof $replace_list
  !!change up_participate here
     up_participate=!listunion $user_participate and $up_class
     shclass=!defof sharing_user in wimshome/log/classes/$up_class/neighbors
     !default shclass=$up_class
     sharing=!defof sharable_user in wimshome/log/classes/$shclass/neighbors
     sharing=!append item $shclass to $sharing
     sharing=!listcomplement $up_participate in $sharing
     !if $sharing!=$empty
       !for sh in $sharing
         test=!defof class_superclass in wimshome/log/classes/$sh/.def
         !if $test!=$empty and $test=$wims_superclass
           up_participate=!append item $sh to $up_participate
         !endif
       !next sh
     !endif
     !if $user_exists=yes
       !setdef !set user_participate=$up_participate in $userdef
       change=!listunion $change and $uu
     !else
       replace_=!append line !set user_participate=$up_participate to $replace_
     !endif
    !endif
  !!endif
!endif

!if $adduser_replace=none
 !exit
!endif

!if $up_password!=$empty and $up_password!=$user_password
 c=!char 1 of $up_password
 !if $c=* and $wims_priv_cryptpass=allow
  p=!text select */$char_passwd in $up_password
 !else
  p=!text select $char_passwd in $up_password
 !endif
 n=!charcnt $p
 !if $p!=$up_password or $n<$passwd_min or $n>$passwd_max
  bad=!append item $uu to $bad
  !exit
 !endif
 up_password=!passcrypt $up_password
 replace_=!append line !set user_password=$up_password to $replace_
!endif

!if $up_vars!=$empty
  up_vars=!nonempty lines $up_vars
  up_vars=!replace internal ! by &#33; in $up_vars
  up_vars=!rows2lines $up_vars
  up_vars=!replace internal = by , in $up_vars
  !if $tv_varfilterreaden!=yes
   !readproc adm/vfilter/listvarfilter.proc
  !endif
  n=!linecnt $up_vars
  !for i=1 to $n
   llll=!line $i of $up_vars
   llll=!trim $llll
   !distribute item $llll into nv_,vv_
   !if $nv_ isitemof $tv_listname
        po_=!positionof item $nv_ in $tv_listname
        !if $po_ isitemof $tv_listlocal
            p_=!line $po_ of $tv_listtechvar
            val_=!record $(p_[3]) of wimshome/log/classes/$(p_[2])/.techvar
            val_=!line 2 of $val_
            t_=!item $po_ of $tv_listcode
            !bound vv_ within $val_,$empty default $empty
            replace_=!append line !set user_techvar_$(t_)=$vv_ to $replace_
        !endif
   !endif
  !next i
!endif
!!FIXME even if there is no change in user_techvar, it is changed
!! and add to the list of users.

!if $replace_=$empty
 !exit
!endif

change=!listunion $change and $uu


!setdef $replace_ in $userdef

!if $up_class=$wims_class
 wims_class_log=User info $uu
!endif