admin/filters.php

   1 <?PHP // $Id$
   2       // Allows the admin to create, delete and rename course categories
   3
   4     require_once("../config.php");
   5
   6     optional_variable($iselect);
   7     optional_variable($uselect);
   8     optional_variable($add);
   9     optional_variable($remove);
  10     optional_variable($up);
  11     optional_variable($down);
  12
  13     require_login();
  14
  15     if (!isadmin()) {
  16         error("Only administrators can use this page!");
  17     }
  18
  19     if (!confirm_sesskey()) {
  20         error(get_string('confirmsesskeybad', 'error'));
  21     }
  22
  23     if (!$site = get_site()) {
  24         error("Site isn't defined!");
  25     }
  26
  27 /// Print headings
  28
  29     $stradministration = get_string("administration");
  30     $strconfiguration = get_string("configuration");
  31     $strmanagefilters = get_string("managefilters");
  32     $strversion = get_string("version");
  33     $strsettings = get_string("settings");
  34     $strup = get_string("up");
  35     $strdown = get_string("down");
  36     $stractive = get_string("active");
  37     $strinactive = get_string("inactive");
  38     $strcachetext = get_string("cachetext", "admin");
  39     $strconfigcachetext = get_string("configcachetext");
  40     $strfilteruploadedfiles = get_string("filteruploadedfiles", "admin");
  41     $strconfigfilteruploadedfiles = get_string("configfilteruploadedfiles");
  42
  43     print_header("$site->shortname: $strmanagefilters", "$site->fullname",
  44                  "<a href=\"index.php\">$stradministration</a> -> ".
  45                  "<a href=\"configure.php\">$strconfiguration</a> -> $strmanagefilters");
  46
  47     print_heading($strmanagefilters);
  48
  49
  50 /// Make a list of all available filters and the best names for them we can find
  51     $allfilters = array();
  52
  53     $filterlocations = array("mod", "filter");
  54
  55     foreach ($filterlocations as $filterlocation) {
  56         $plugins = get_list_of_plugins($filterlocation);
  57         foreach ($plugins as $key => $plugin) {
  58             if (is_readable("$CFG->dirroot/$filterlocation/$plugin/filter.php")) {
  59                 $name = trim(get_string("filtername", $plugin));
  60                 if (empty($name) or $name == "[[filtername]]") {
  61                     $name = $plugin;
  62                 }
  63                 $allfilters["$filterlocation/$plugin"] = $name;
  64             }
  65         }
  66     }
  67
  68
  69 /// Make an array of all the currently installed filters
  70
  71     $installedfilters = array();
  72     if (!empty($CFG->textfilters)) {
  73         $installedfilters = explode(',',$CFG->textfilters);
  74
  75         // Do a little cleanup for robustness
  76         foreach ($installedfilters as $key => $installedfilter) {
  77             if (empty($installedfilter)) {
  78                 unset($installedfilters[$key]);
  79                 set_config("textfilters", implode(',', $installedfilters));
  80             }
  81         }
  82     }
  83
  84     $selectedfilter = "none";
  85
  86 /// If data submitted, then process and store.
  87
  88     if (!empty($options)) {
  89             if ($config = data_submitted()) {
  90             unset($config->options);
  91             foreach ($config as $name => $value) {
  92                 set_config($name, $value);
  93             }
  94         }
  95     }
  96
  97     if (!empty($add) and !empty($uselect)) {
  98         $selectedfilter = $uselect;
  99         if (!in_array($selectedfilter, $installedfilters)) {
 100             $installedfilters[] = $selectedfilter;
 101             set_config("textfilters", implode(',', $installedfilters));
 102         }
 103
 104     } else if (!empty($remove) and !empty($iselect)) {
 105         $selectedfilter = $iselect;
 106         foreach ($installedfilters as $key => $installedfilter) {
 107             if ($installedfilter == $selectedfilter) {
 108                 unset($installedfilters[$key]);
 109             }
 110         }
 111         set_config("textfilters", implode(',', $installedfilters));
 112
 113     } else if ((!empty($up) or !empty($down)) and !empty($iselect)) {
 114
 115         if (!empty($up)) {
 116             if ($allfilters[$iselect]) {
 117                 foreach ($installedfilters as $key => $installedfilter) {
 118                     if ($installedfilter == $iselect) {
 119                         $movefilter = $key;
 120                         break;
 121                     }
 122                     $swapfilter = $key;
 123                 }
 124             }
 125         }
 126         if (!empty($down)) {
 127             if ($allfilters[$iselect]) {
 128                 $choosenext = false;
 129                 foreach ($installedfilters as $key => $installedfilter) {
 130                     if ($choosenext) {
 131                         $swapfilter = $key;
 132                         break;
 133                     }
 134                     if ($installedfilter == $iselect) {
 135                         $movefilter = $key;
 136                         $choosenext = true;
 137                     }
 138                 }
 139             }
 140         }
 141         if (isset($swapfilter) and isset($movefilter)) {
 142             $tempfilter = $installedfilters[$swapfilter];
 143             $installedfilters[$swapfilter] = $installedfilters[$movefilter];
 144             $installedfilters[$movefilter] = $tempfilter;
 145             set_config("textfilters", implode(',', $installedfilters));
 146         }
 147         $selectedfilter = $iselect;
 148     }
 149
 150
 151
 152 /// Make an array of all the currently uninstalled filters
 153
 154     $uninstalledfilters = array();
 155     foreach ($allfilters as $filter => $name) {
 156         $installed = false;
 157         foreach ($installedfilters as $installedfilter) {
 158             if ($installedfilter == $filter) {
 159                 $installed = true;
 160             }
 161         }
 162         if (!$installed) {
 163             $uninstalledfilters[] = $filter;
 164         }
 165     }
 166
 167 /// Print the current form
 168
 169     include("filters.html");
 170
 171
 172     print_footer();
 173
 174 ?>