index.php

   1 <?PHP  // $Id$
   2        // index.php - the front page.
   3
   4     if (!file_exists('./config.php')) {
   5         header('Location: install.php');
   6         die;
   7     }
   8
   9 /// Bounds for block widths on this page
  10     define('BLOCK_L_MIN_WIDTH', 160);
  11     define('BLOCK_L_MAX_WIDTH', 210);
  12     define('BLOCK_R_MIN_WIDTH', 160);
  13     define('BLOCK_R_MAX_WIDTH', 210);
  14
  15     require_once('config.php');
  16     require_once($CFG->dirroot.'/course/lib.php');
  17     require_once($CFG->dirroot.'/lib/blocklib.php');
  18     require_once($CFG->dirroot.'/mod/resource/lib.php');
  19     require_once($CFG->dirroot.'/mod/forum/lib.php');
  20
  21     if (! $site = get_site()) {
  22         redirect("$CFG->wwwroot/$CFG->admin/index.php");
  23     }
  24
  25     if ($CFG->forcelogin) {
  26         require_login();
  27     }
  28
  29     if (isadmin()) {
  30         if (moodle_needs_upgrading()) {
  31             redirect("$CFG->wwwroot/$CFG->admin/index.php");
  32         }
  33     }
  34
  35     if (empty($USER->id)) {
  36         if (empty($CFG->loginhttps)) {
  37             $wwwroot = $CFG->wwwroot;
  38         } else {
  39             $wwwroot = str_replace('http','https',$CFG->wwwroot);
  40         }
  41         $loginstring = "<font size=2><a href=\"$wwwroot/login/index.php\">".get_string("login")."</a></font>";
  42     } else {
  43         $loginstring = "<font size=1>".user_login_string($site)."</font>";
  44     }
  45
  46     if (empty($CFG->langmenu)) {
  47         $langmenu = "";
  48     } else {
  49         $currlang = current_language();
  50         $langs = get_list_of_languages();
  51         $langmenu = popup_form ("$CFG->wwwroot/index.php?lang=", $langs, "chooselang", $currlang, "", "", "", true);
  52     }
  53
  54     print_header(strip_tags($site->fullname), "$site->fullname", "home", "",
  55                  "<meta name=\"description\" content=\"".s(strip_tags($site->summary))."\">",
  56                  true, "", "$loginstring$langmenu");
  57
  58     $editing = isediting($site->id);
  59
  60     // Doing this now so we can pass the results to block_action()
  61     // and dodge the overhead of doing the same work twice.
  62
  63     $blocks = $site->blockinfo;
  64     $delimpos = strpos($blocks, ':');
  65
  66     if($delimpos === false) {
  67         // No ':' found, we have all left blocks
  68         $leftblocks = explode(',', $blocks);
  69         $rightblocks = array();
  70     }
  71     else if($delimpos === 0) {
  72         // ':' at start of string, we have all right blocks
  73         $blocks = substr($blocks, 1);
  74         $leftblocks = array();
  75         $rightblocks = explode(',', $blocks);
  76     }
  77     else {
  78         // Both left and right blocks
  79         $leftpart = substr($blocks, 0, $delimpos);
  80         $rightpart = substr($blocks, $delimpos + 1);
  81         $leftblocks = explode(',', $leftpart);
  82         $rightblocks = explode(',', $rightpart);
  83     }
  84
  85     if($editing) {
  86         if (isset($_GET['blockaction'])) {
  87             if (isset($_GET['blockid'])) {
  88                 block_action($site, $leftblocks, $rightblocks, strtolower($_GET['blockaction']), intval($_GET['blockid']));
  89             }
  90         }
  91
  92         // This has to happen after block_action() has possibly updated the two arrays
  93         $allblocks = array_merge($leftblocks, $rightblocks);
  94
  95         $missingblocks = array();
  96         $recblocks = get_records('blocks','visible','1');
  97
  98         // Note down which blocks are going to get displayed
  99         blocks_used($allblocks, $recblocks);
 100
 101         if($editing && $recblocks) {
 102             foreach($recblocks as $recblock) {
 103                 // If it's not hidden or displayed right now...
 104                 if(!in_array($recblock->id, $allblocks) && !in_array(-($recblock->id), $allblocks)) {
 105                     // And if it's applicable for display in this format...
 106                     $formats = block_method_result($recblock->name, 'applicable_formats');
 107
 108                     if( isset($formats['site']) ? $formats['site'] : !empty($formats['all'])) {
 109                         // Translation: if the 'site' format is explicitly accepted/rejected, use
 110                         // that setting. Otherwise, fallback to the 'all' format. The empty() test
 111                         // uses the trick that empty() fails if 'all' is either !isset() or false.
 112
 113                         // Add it to the missing blocks
 114                         $missingblocks[] = $recblock->id;
 115                     }
 116                 }
 117             }
 118         }
 119     }
 120     else {
 121         // Note down which blocks are going to get displayed
 122         $allblocks = array_merge($leftblocks, $rightblocks);
 123         $recblocks = get_records('blocks','visible','1');
 124         blocks_used($allblocks, $recblocks);
 125     }
 126
 127     // If the block width cache is not set, set it
 128     if(!isset($SESSION) or !isset($SESSION->blockcache) or
 129         !isset($SESSION->blockcache->width->{$site->id}) or $editing) {
 130         // This query might be optimized away if we 're in editing mode
 131         if(!isset($recblocks)) {
 132             $recblocks = get_records('blocks','visible','1');
 133         }
 134         $preferred_width_left = blocks_preferred_width($leftblocks, $recblocks);
 135         $preferred_width_right = blocks_preferred_width($rightblocks, $recblocks);
 136
 137         // This may be kind of organizational overkill, granted...
 138         // But is there any real need to simplify the structure?
 139         $SESSION->blockcache->width->{$site->id}->left = $preferred_width_left;
 140         $SESSION->blockcache->width->{$site->id}->right = $preferred_width_right;
 141     } else {
 142         $preferred_width_left = $SESSION->blockcache->width->{$site->id}->left;
 143         $preferred_width_right = $SESSION->blockcache->width->{$site->id}->right;
 144     }
 145
 146     $preferred_width_left = min($preferred_width_left, BLOCK_L_MAX_WIDTH);
 147     $preferred_width_left = max($preferred_width_left, BLOCK_L_MIN_WIDTH);
 148     $preferred_width_right = min($preferred_width_right, BLOCK_R_MAX_WIDTH);
 149     $preferred_width_right = max($preferred_width_right, BLOCK_R_MIN_WIDTH);
 150
 151 ?>
 152
 153
 154 <table width="100%" border="0" cellspacing="5" cellpadding="5">
 155   <tr>
 156   <?PHP
 157
 158     if(block_have_active($leftblocks) || $editing) {
 159         echo '<td style="vertical-align: top; width: '.$preferred_width_left.'px;">';
 160         print_course_blocks($site, $leftblocks, BLOCK_LEFT);
 161         echo '</td>';
 162     }
 163
 164     echo '<td style="vertical-align: top;">';
 165
 166
 167 /// Print Section
 168     if ($site->numsections > 0) {
 169         print_simple_box_start('center', '100%', $THEME->cellcontent, 5, 'sitetopic');
 170
 171         /// If currently moving a file then show the current clipboard
 172         if (ismoving($site->id)) {
 173             $stractivityclipboard = strip_tags(get_string("activityclipboard", "", addslashes($USER->activitycopyname)));
 174             echo "<p><font size=2>";
 175             echo "$stractivityclipboard&nbsp;&nbsp;(<a href=\"course/mod.php?cancelcopy=true\">".get_string("cancel")."</a>)";
 176             echo "</font></p>";
 177         }
 178
 179
 180         if (!$section = get_record('course_sections', 'course', $site->id, 'section', 1)) {
 181             delete_records('course_sections', 'course', $site->id, 'section', 1); // Just in case
 182             $section->course = $site->id;
 183             $section->section = 1;
 184             $section->summary = '';
 185             $section->visible = 1;
 186             $section->id = insert_record('course_sections', $section);
 187         }
 188
 189         echo format_text($section->summary, FORMAT_HTML);
 190
 191         if ($editing) {
 192             $streditsummary = get_string('editsummary');
 193             echo "<a title=\"$streditsummary\" ".
 194                  " href=\"course/editsection.php?id=$section->id\"><img src=\"$CFG->pixpath/t/edit.gif\" ".
 195                  " height=11 width=11 border=0 alt=\"$streditsummary\"></a><br />";
 196         }
 197
 198         echo '<br clear="all">';
 199
 200         get_all_mods($site->id, $mods, $modnames, $modnamesplural, $modnamesused);
 201         print_section($site, $section, $mods, $modnamesused, true);
 202
 203         if ($editing) {
 204             print_section_add_menus($site, $section->section, $modnames);
 205         }
 206         print_simple_box_end();
 207         print_spacer(10);
 208     }
 209
 210     switch ($CFG->frontpage) {     /// Display the main part of the front page.
 211         case FRONTPAGENEWS:
 212             if (! $newsforum = forum_get_course_forum($site->id, "news")) {
 213                 error("Could not find or create a main news forum for the site");
 214             }
 215
 216             if (isset($USER->id)) {
 217                 $SESSION->fromdiscussion = "$CFG->wwwroot";
 218                 if (forum_is_subscribed($USER->id, $newsforum->id)) {
 219                     $subtext = get_string("unsubscribe", "forum");
 220                 } else {
 221                     $subtext = get_string("subscribe", "forum");
 222                 }
 223                 $headertext = "<table border=0 width=100% cellpadding=0 cellspacing=0 class=headingblockcontent><tr>
 224                                <td>$newsforum->name</td>
 225                                <td align=right><font size=1>
 226                                <a href=\"mod/forum/subscribe.php?id=$newsforum->id\">$subtext</a>
 227                                </td></tr></table>";
 228             } else {
 229                 $headertext = $newsforum->name;
 230             }
 231             print_heading_block($headertext);
 232             print_spacer(8,1);
 233             forum_print_latest_discussions($newsforum->id, $site->newsitems);
 234         break;
 235
 236         case FRONTPAGECOURSELIST:
 237         case FRONTPAGECATEGORYNAMES:
 238             if (isset($USER->id) and !isset($USER->admin)) {
 239                 print_heading_block(get_string("mycourses"));
 240                 print_spacer(8,1);
 241                 print_my_moodle();
 242             } else {
 243                 if (count_records("course_categories") > 1) {
 244                     if ($CFG->frontpage == FRONTPAGECOURSELIST) {
 245                         print_heading_block(get_string("availablecourses"));
 246                     } else {
 247                         print_heading_block(get_string("categories"));
 248                     }
 249                     print_spacer(8,1);
 250                     print_simple_box_start("center", "100%");
 251                     print_whole_category_list();
 252                     print_simple_box_end();
 253                     print_course_search("", false, "short");
 254                 } else {
 255                     print_heading_block(get_string("availablecourses"));
 256                     print_spacer(8,1);
 257                     print_courses(0, "100%");
 258                 }
 259             }
 260         break;
 261
 262     }
 263
 264     echo '</td>';
 265     if(block_have_active($rightblocks) || $editing || isadmin()) {
 266         echo '<td style="vertical-align: top; width: '.$preferred_width_right.'px;">';
 267         if (isadmin()) {
 268             echo '<div align="center">'.update_course_icon($site->id).'</div>';
 269             echo '<br />';
 270         }
 271         print_course_blocks($site, $rightblocks, BLOCK_RIGHT);
 272         if ($editing && !empty($missingblocks)) {
 273             block_print_blocks_admin($site, $missingblocks);
 274         }
 275         echo '</td>';
 276     }
 277 ?>
 278
 279   </tr>
 280 </table>
 281
 282 <?PHP print_footer('home');     // Please do not modify this line ?>
 283