admin/admin.php

   1 <?PHP // $Id$
   2       // Admin-only script to assign administrative rights to users
   3
   4         require_once("../config.php");
   5
   6     define("MAX_USERS_PER_PAGE", 50);
   7
   8     optional_variable($add, "");
   9     optional_variable($remove, "");
  10     optional_variable($search, "");
  11
  12     if (! $site = get_site()) {
  13         redirect("$CFG->wwwroot/$CFG->admin/index.php");
  14     }
  15
  16     require_login();
  17
  18     if (!isadmin()) {
  19         error("You must be an administrator to use this page.");
  20     }
  21
  22     $primaryadmin = get_admin();
  23
  24 /// If you want any administrator to have the ability to assign admin
  25 /// rights, then comment out the following if statement
  26     if ($primaryadmin->id != $USER->id) {
  27         error("You must be the primary administrator to use this page.");
  28     }
  29
  30 /// assign all of the configurable language strings
  31     $stringstoload = array (
  32         "assignadmins",
  33         "administration",
  34         "existingadmins",
  35         "noexistingadmins",
  36         "potentialadmins",
  37         "nopotentialadmins",
  38         "addadmin",
  39         "removeadmin",
  40         "search",
  41         "searchagain",
  42         "toomanytoshow",
  43         "users",
  44         "searchresults"
  45         );
  46
  47     foreach ($stringstoload as $stringtoload){
  48         $strstringtoload = "str" . $stringtoload;
  49         $$strstringtoload = get_string($stringtoload);
  50     }
  51
  52     if ($search) {
  53         $searchstring = $strsearchagain;
  54     } else {
  55         $searchstring = $strsearch;
  56     }
  57
  58         print_header("$site->shortname: $strassignadmins",
  59                  "$site->fullname",
  60                  "<a href=\"index.php\">$stradministration</a> -> <a href=\"users.php\">$strusers</a> -> $strassignadmins", "");
  61
  62 /// Add an admin if one is specified
  63     if (!empty($_GET['add'])) {
  64         if (! add_admin($add)) {
  65             error("Could not add that admin!");
  66         }
  67     }
  68
  69 /// Remove an admin if one is specified.
  70     if (!empty($_GET['remove'])) {
  71         if (! remove_admin($remove)) {
  72             error("Could not remove that admin!");
  73         }
  74     }
  75
  76 /// Print a help notice about this page
  77     if (empty($add) and empty($remove) and empty($search)) {
  78         print_simple_box("<center>".get_string("adminhelpassignadmins")."</center>", "center", "50%");
  79     }
  80
  81 /// Get all existing admins
  82     $admins = get_admins();
  83
  84 /// Print the lists of existing and potential admins
  85     echo "<table cellpadding=2 cellspacing=10 align=center>";
  86     echo "<tr><th width=50%>$strexistingadmins</th><th width=50%>$strpotentialadmins</th></tr>";
  87     echo "<tr><td width=50% nowrap valign=top>";
  88
  89 /// First, show existing admins
  90
  91     if (! $admins) {
  92         echo "<p align=center>$strnoexistingadmins</p>";
  93         $adminlist = "";
  94
  95     } else {
  96         $adminarray = array();
  97
  98         foreach ($admins as $admin) {
  99             $adminarray[] = $admin->id;
 100             echo "<p align=right>$admin->firstname $admin->lastname,
 101                      $admin->email &nbsp;&nbsp; ";
 102             if ($primaryadmin->id == $admin->id){
 103                 print_spacer(10, 9, false);
 104             } else {
 105                 echo "<a href=\"{$_SERVER['PHP_SELF']}?remove=$admin->id\"
 106                 title=\"$strremoveadmin\"><img src=\"../pix/t/right.gif\"
 107                 border=0></A>";
 108             }
 109             echo "</p>";
 110         }
 111
 112         $adminlist = implode(",",$adminarray);
 113         unset($adminarray);
 114     }
 115
 116     echo "<td width=50% nowrap valign=top>";
 117
 118 /// Print list of potential admins
 119
 120     $usercount = get_users(false, $search, true, $adminlist);
 121
 122     if ($usercount == 0) {
 123         echo "<p align=center>$strnopotentialadmins</p>";
 124
 125     } else if ($usercount > MAX_USERS_PER_PAGE) {
 126         echo "<p align=center>$strtoomanytoshow ($usercount) </p>";
 127
 128     } else {
 129
 130         if ($search) {
 131             echo "<p align=center>($strsearchresults : $search)</p>";
 132         }
 133
 134         if (!$users = get_users(true, $search, true, $adminlist)) {
 135             error("Could not get users!");
 136         }
 137
 138         foreach ($users as $user) {
 139             echo "<p align=left><a href=\"{$_SERVER['PHP_SELF']}?add=$user->id\"".
 140                    "title=\"$straddadmin\"><img src=\"../pix/t/left.gif\"".
 141                    "border=0></a>&nbsp;&nbsp;$user->firstname $user->lastname, $user->email";
 142         }
 143     }
 144
 145     if ($search or $usercount > MAX_USERS_PER_PAGE) {
 146         echo "<form action={$_SERVER['PHP_SELF']} method=post>";
 147         echo "<input type=text name=search size=20>";
 148         echo "<input type=submit value=\"$searchstring\">";
 149         echo "</form>";
 150     }
 151
 152     echo "</tr></table>";
 153
 154     print_footer();
 155
 156 ?>