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