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(* Copyright (c) 2006-2008 Janne Hellsten <jjhellst@gmail.com> *)
(*
* This program is free software: you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details. You should have received
* a copy of the GNU General Public License along with this program.
* If not, see <http://www.gnu.org/licenses/>.
*)
open Lwt
open XHTML.M
open Eliom_sessions
open Eliom_parameters
open Eliom_services
open Eliom_predefmod.Xhtml
open Services
open Types
module Db = Database
let query_user login = Db.with_conn (fun conn -> Db.query_user ~conn login)
let service_create_new_user =
new_post_service
~fallback:user_admin_page
~post_params:((string "login") **
(string "pass") **
(string "pass2") ** (* re-type *)
(string "name") **
(string "email"))
()
let service_save_user_edit =
new_post_service
~fallback:edit_user_page
~post_params:((string "pass") **
(string "pass2") ** (* re-type *)
(string "name") **
(string "email"))
()
let rec view_user_admin_page sp ~err ~cur_user =
Db.with_conn (fun conn -> Db.query_users ~conn) >>= fun users ->
let users_table =
table
(tr
(th
[pcdata "Id"])
[th [pcdata "Login"];
th [pcdata "Real Name"];
th [pcdata "E-mail"]])
(List.map
(fun user ->
tr
(td [pcdata (string_of_int user.user_id)])
[td [pcdata user.user_login];
td [pcdata user.user_real_name];
td [pcdata user.user_email];
td [a ~service:edit_user_page ~sp [pcdata "Edit"]
(Some "user_admin", user.user_login)]])
users) in
return
(Html_util.html_stub sp
(Html_util.navbar_html sp ~cur_user
([h1 [pcdata "Edit users"];
users_table] @
err @
[post_form ~service:service_create_new_user ~sp
(fun (login,(passwd,(passwd2,(name,email)))) ->
[h2 [pcdata "Create a new user"];
(table
(tr
(td [pcdata "Login:"])
[td [string_input ~input_type:`Text ~name:login ()]])
[tr
(td [pcdata "Password:"])
[td [string_input ~input_type:`Password ~name:passwd ()]];
tr
(td [pcdata "Re-type password:"])
[td [string_input ~input_type:`Password ~name:passwd2 ()]];
tr
(td [pcdata "Name:"])
[td [string_input ~input_type:`Text ~name:name ()]];
tr
(td [pcdata "E-mail address:"])
[td [string_input ~input_type:`Text ~name:email ()]];
tr
(td [string_input ~input_type:`Submit ~value:"Add User" ()])
[]])]) ()])))
(* Only allow certain types of login names to avoid surprises *)
let sanitize_login_name name =
let rex = Pcre.regexp "^[a-zA-Z_][a-zA-Z0-9_]*$" in
try Some (Pcre.extract ~rex name).(0) with Not_found -> None
let save_user ~update_user ~login ~passwd ~passwd2 ~real_name ~email =
let sanitized_login = sanitize_login_name login in
match sanitized_login with
None ->
return [Html_util.error ("Only alphanumeric chars are allowed in login name! Got '"^login^"'")]
| Some login ->
query_user login >>= fun old_user ->
if not update_user && old_user <> None then
return [Html_util.error ("User '"^login^"' already exists!")]
else if login = "guest" then
return [Html_util.error ("Cannot create '"^login^"' user. The login name 'guest' is reserved for internal use!")]
else if passwd <> passwd2 then
return [Html_util.error "Re-typed password doesn't match your password!"]
else
begin
let passwd_md5 = Digest.to_hex (Digest.string passwd) in
if update_user then
begin
match old_user with
Some u ->
(* If no password was entered, set it to old value: *)
let new_passwd_md5 =
if passwd = "" then None else Some passwd_md5 in
Db.with_conn
(fun conn ->
Db.update_user ~conn
~user_id:u.user_id ~passwd:new_passwd_md5 ~real_name ~email)
>>= fun _ -> return []
| None ->
assert false
end
else
Db.with_conn
(fun conn ->
Db.add_user ~conn ~login ~passwd:passwd_md5 ~real_name ~email)
>>= fun _ -> return []
end
let _ =
register service_create_new_user
(fun sp () (login,(passwd,(passwd2,(real_name, email)))) ->
Session.with_user_login sp
(fun cur_user sp ->
Privileges.with_can_create_user cur_user
(fun () ->
save_user ~update_user:false
~login ~passwd ~passwd2 ~real_name ~email >>= fun err ->
view_user_admin_page sp ~err ~cur_user)
~on_fail:(fun e -> return (Html_util.error_page sp e))))
let save_user_prefs c_passwd c_passwd2 (c_name,old_name) (c_email,old_email) =
(table
(tr
(td [pcdata "New Password:"])
[td [string_input ~input_type:`Password ~name:c_passwd ()];
])
[tr
(td [pcdata "Re-type Password:"])
[td [string_input ~input_type:`Password ~name:c_passwd2 ()]];
tr
(td [pcdata "Name:"])
[td [string_input ~input_type:`Text ~name:c_name
~value:old_name ()]];
tr
(td [pcdata "E-mail Address:"])
[td [string_input ~input_type:`Text ~name:c_email
~value:old_email ()]];
tr
(td [string_input ~input_type:`Submit ~value:"Save User" ()])
[]])
let _ =
register user_admin_page
(fun sp _ () ->
Session.with_user_login sp
(fun cur_user sp ->
Privileges.with_can_view_users cur_user
(fun () ->
view_user_admin_page sp ~err:[] ~cur_user)
~on_fail:(fun e -> return (Html_util.error_page sp e))))
let rec view_edit_user_page sp caller ~err ~cur_user user_to_edit =
Html_util.html_stub sp
(Html_util.navbar_html sp ~cur_user
([h1 [pcdata "Edit User"]] @
err @
[post_form ~service:service_save_user_edit ~sp
(fun (passwd,(passwd2,(name,email))) ->
[h2 [pcdata ("Edit User '"^user_to_edit.user_login^"'")];
save_user_prefs passwd passwd2
(name,user_to_edit.user_real_name)
(email,user_to_edit.user_email)])
(caller, user_to_edit.user_login)]))
let _ =
register service_save_user_edit
(fun sp (caller,login) (passwd,(passwd2,(real_name, email))) ->
Session.with_user_login sp
(fun cur_user sp ->
query_user login
>>= function
| Some user_to_edit ->
Privileges.with_can_edit_user cur_user user_to_edit
(fun () ->
save_user
~update_user:true
~login:login
~passwd ~passwd2 ~real_name ~email >>= fun err ->
(* Update password in the session if we're editing current
user: *)
if err = [] && passwd <> "" && cur_user.user_login = login then
Session.update_session_password sp login passwd;
Session.with_user_login sp
(fun cur_user sp ->
match caller with
Some "user_admin" ->
view_user_admin_page sp ~err ~cur_user
| Some _ ->
return (Html_util.error_page sp ("Invalid caller service!"))
| None ->
query_user login
>>= function
| Some user ->
return (view_edit_user_page sp caller ~err ~cur_user user)
| None ->
return (Html_util.error_page sp ("Invalid user!"))))
~on_fail:(fun e -> return (Html_util.error_page sp e))
| None ->
return (Html_util.error_page sp ("Trying to edit unknown user '"^login^"'"))))
let _ =
register edit_user_page
(fun sp (caller,editing_login) () ->
Session.with_user_login sp
(fun cur_user sp ->
query_user editing_login
>>= function
| Some user_to_edit ->
Privileges.with_can_edit_user cur_user user_to_edit
(fun () ->
return (view_edit_user_page sp caller ~err:[] ~cur_user user_to_edit))
~on_fail:(fun e -> return (Html_util.error_page sp e))
| None ->
return (Html_util.error_page sp ("Unknown user '"^editing_login^"'"))))
|
