files/index.php

   1 <?php // $Id$
   2
   3 //  Manage all uploaded files in a course file area
   4
   5 //  All the Moodle-specific stuff is in this top section
   6 //  Configuration and access control occurs here.
   7 //  Must define:  USER, basedir, baseweb, html_header and html_footer
   8 //  USER is a persistent variable using sessions
   9
  10     require('../config.php');
  11     require_once($CFG->libdir . '/filelib.php');
  12     require_once($CFG->libdir . '/adminlib.php');
  13
  14     $id      = required_param('id', PARAM_INT);
  15     $file    = optional_param('file', '', PARAM_PATH);
  16     $wdir    = optional_param('wdir', '', PARAM_PATH);
  17     $action  = optional_param('action', '', PARAM_ACTION);
  18     $name    = optional_param('name', '', PARAM_FILE);
  19     $oldname = optional_param('oldname', '', PARAM_FILE);
  20     $choose  = optional_param('choose', '', PARAM_FILE); //in fact it is always 'formname.inputname'
  21     $userfile= optional_param('userfile','',PARAM_FILE);
  22     $save    = optional_param('save', 0, PARAM_BOOL);
  23     $text    = optional_param('text', '', PARAM_RAW);
  24     $confirm = optional_param('confirm', 0, PARAM_BOOL);
  25
  26     if ($choose) {
  27         if (count(explode('.', $choose)) > 2) {
  28             error('Incorrect format for choose parameter');
  29         }
  30     }
  31
  32
  33     if (! $course = get_record("course", "id", $id) ) {
  34         error("That's an invalid course id");
  35     }
  36
  37     require_login($course);
  38
  39     require_capability('moodle/course:managefiles', get_context_instance(CONTEXT_COURSE, $course->id));
  40
  41     function html_footer() {
  42         global $COURSE, $choose;
  43
  44         echo '</td></tr></table>';
  45
  46         print_footer($COURSE);
  47     }
  48
  49     function html_header($course, $wdir, $formfield=""){
  50         global $CFG, $ME, $choose;
  51
  52         $navlinks = array();
  53         // $navlinks[] = array('name' => $course->shortname, 'link' => "../course/view.php?id=$course->id", 'type' => 'misc');
  54
  55         if ($course->id == SITEID) {
  56             $strfiles = get_string("sitefiles");
  57         } else {
  58             $strfiles = get_string("files");
  59         }
  60
  61         if ($wdir == "/") {
  62             $navlinks[] = array('name' => $strfiles, 'link' => null, 'type' => 'misc');
  63         } else {
  64             $dirs = explode("/", $wdir);
  65             $numdirs = count($dirs);
  66             $link = "";
  67             $navlinks[] = array('name' => $strfiles,
  68                                 'link' => $ME."?id=$course->id&amp;wdir=/&amp;choose=$choose",
  69                                 'type' => 'misc');
  70
  71             for ($i=1; $i<$numdirs-1; $i++) {
  72                 $link .= "/".urlencode($dirs[$i]);
  73                 $navlinks[] = array('name' => $dirs[$i],
  74                                     'link' => $ME."?id=$course->id&amp;wdir=$link&amp;choose=$choose",
  75                                     'type' => 'misc');
  76             }
  77             $navlinks[] = array('name' => $dirs[$numdirs-1], 'link' => null, 'type' => 'misc');
  78         }
  79
  80         $navigation = build_navigation($navlinks);
  81
  82         if ($choose) {
  83             print_header();
  84
  85             $chooseparts = explode('.', $choose);
  86             if (count($chooseparts)==2){
  87             ?>
  88             <script type="text/javascript">
  89             //<![CDATA[
  90             function set_value(txt) {
  91                 opener.document.forms['<?php echo $chooseparts[0]."'].".$chooseparts[1] ?>.value = txt;
  92                 window.close();
  93             }
  94             //]]>
  95             </script>
  96
  97             <?php
  98             } elseif (count($chooseparts)==1){
  99             ?>
 100             <script type="text/javascript">
 101             //<![CDATA[
 102             function set_value(txt) {
 103                 opener.document.getElementById('<?php echo $chooseparts[0] ?>').value = txt;
 104                 window.close();
 105             }
 106             //]]>
 107             </script>
 108
 109             <?php
 110
 111             }
 112             $fullnav = '';
 113             $i = 0;
 114             foreach ($navlinks as $navlink) {
 115                 // If this is the last link do not link
 116                 if ($i == count($navlinks) - 1) {
 117                     $fullnav .= $navlink['name'];
 118                 } else {
 119                     $fullnav .= '<a href="'.$navlink['link'].'">'.$navlink['name'].'</a>';
 120                 }
 121                 $fullnav .= ' -> ';
 122                 $i++;
 123             }
 124             $fullnav = substr($fullnav, 0, -4);
 125             $fullnav = str_replace('->', '&raquo;', format_string($course->shortname) . " -> " . $fullnav);
 126             echo '<div id="nav-bar">'.$fullnav.'</div>';
 127
 128             if ($course->id == SITEID and $wdir != "/backupdata") {
 129                 print_heading(get_string("publicsitefileswarning3"), "center", 2);
 130             }
 131
 132         } else {
 133
 134             if ($course->id == SITEID) {
 135
 136                 if ($wdir == "/backupdata") {
 137                     admin_externalpage_setup('frontpagerestore');
 138                     admin_externalpage_print_header();
 139                 } else {
 140                     admin_externalpage_setup('sitefiles');
 141                     admin_externalpage_print_header();
 142
 143                     print_heading(get_string("publicsitefileswarning3"), "center", 2);
 144
 145                 }
 146
 147             } else {
 148                 print_header("$course->shortname: $strfiles", $course->fullname, $navigation,  $formfield);
 149             }
 150         }
 151
 152
 153         echo "<table border=\"0\" style=\"margin-left:auto;margin-right:auto\" cellspacing=\"3\" cellpadding=\"3\" width=\"640\">";
 154         echo "<tr>";
 155         echo "<td colspan=\"2\">";
 156
 157     }
 158
 159
 160     if (! $basedir = make_upload_directory("$course->id")) {
 161         error("The site administrator needs to fix the file permissions");
 162     }
 163
 164     // make sure site files contain the backupdata or else people put backups into public area!!
 165     if ($course->id == SITEID) {
 166         if (!file_exists("$CFG->dataroot/$course->id/backupdata")) {
 167             make_upload_directory("$course->id/backupdata");
 168         }
 169     }
 170
 171     $baseweb = $CFG->wwwroot;
 172
 173 //  End of configuration and access control
 174
 175
 176     if ($wdir == '') {
 177         $wdir = "/";
 178     }
 179
 180     if ($wdir{0} != '/') {  //make sure $wdir starts with slash
 181         $wdir = "/".$wdir;
 182     }
 183
 184     if ($wdir == "/backupdata") {
 185         if (! make_upload_directory("$course->id/backupdata")) {   // Backup folder
 186             error("Could not create backupdata folder.  The site administrator needs to fix the file permissions");
 187         }
 188     }
 189
 190     if (!is_dir($basedir.$wdir)) {
 191         html_header($course, $wdir);
 192         error("Requested directory does not exist.", "$CFG->wwwroot/files/index.php?id=$id");
 193     }
 194
 195     switch ($action) {
 196
 197         case "upload":
 198             html_header($course, $wdir);
 199             require_once($CFG->dirroot.'/lib/uploadlib.php');
 200
 201             if ($save and confirm_sesskey()) {
 202                 $course->maxbytes = 0;  // We are ignoring course limits
 203                 $um = new upload_manager('userfile',false,false,$course,false,0);
 204                 $dir = "$basedir$wdir";
 205                 if ($um->process_file_uploads($dir)) {
 206                     notify(get_string('uploadedfile'));
 207                 }
 208                 // um will take care of error reporting.
 209                 displaydir($wdir);
 210             } else {
 211                 $upload_max_filesize = get_max_upload_file_size($CFG->maxbytes);
 212                 $filesize = display_size($upload_max_filesize);
 213
 214                 $struploadafile = get_string("uploadafile");
 215                 $struploadthisfile = get_string("uploadthisfile");
 216                 $strmaxsize = get_string("maxsize", "", $filesize);
 217                 $strcancel = get_string("cancel");
 218
 219                 echo "<p>$struploadafile ($strmaxsize) --> <b>$wdir</b></p>";
 220                 echo "<form enctype=\"multipart/form-data\" method=\"post\" action=\"index.php\">";
 221                 echo "<div>";
 222                 echo "<table><tr><td colspan=\"2\">";
 223                 echo ' <input type="hidden" name="choose" value="'.$choose.'" />';
 224                 echo " <input type=\"hidden\" name=\"id\" value=\"$id\" />";
 225                 echo " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />";
 226                 echo " <input type=\"hidden\" name=\"action\" value=\"upload\" />";
 227                 echo " <input type=\"hidden\" name=\"sesskey\" value=\"$USER->sesskey\" />";
 228                 upload_print_form_fragment(1,array('userfile'),null,false,null,$upload_max_filesize,0,false);
 229                 echo " </td></tr></table>";
 230                 echo " <input type=\"submit\" name=\"save\" value=\"$struploadthisfile\" />";
 231                 echo "</div>";
 232                 echo "</form>";
 233                 echo "<form action=\"index.php\" method=\"get\">";
 234                 echo "<div>";
 235                 echo ' <input type="hidden" name="choose" value="'.$choose.'" />';
 236                 echo " <input type=\"hidden\" name=\"id\" value=\"$id\" />";
 237                 echo " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />";
 238                 echo " <input type=\"hidden\" name=\"action\" value=\"cancel\" />";
 239                 echo " <input type=\"submit\" value=\"$strcancel\" />";
 240                 echo "</div>";
 241                 echo "</form>";
 242             }
 243             html_footer();
 244             break;
 245
 246         case "delete":
 247             if ($confirm and confirm_sesskey()) {
 248                 html_header($course, $wdir);
 249                 if (!empty($USER->filelist)) {
 250                     foreach ($USER->filelist as $file) {
 251                         $fullfile = $basedir.'/'.$file;
 252                         if (! fulldelete($fullfile)) {
 253                             echo "<br />Error: Could not delete: $fullfile";
 254                         }
 255                     }
 256                 }
 257                 clearfilelist();
 258                 displaydir($wdir);
 259                 html_footer();
 260
 261             } else {
 262                 html_header($course, $wdir);
 263
 264                 if (setfilelist($_POST)) {
 265                     notify(get_string('deletecheckwarning').':');
 266                     print_simple_box_start("center");
 267                     printfilelist($USER->filelist);
 268                     print_simple_box_end();
 269                     echo "<br />";
 270
 271                     require_once($CFG->dirroot.'/mod/resource/lib.php');
 272                     $block = resource_delete_warning($course, $USER->filelist);
 273
 274                     if (empty($CFG->resource_blockdeletingfile) or $block == '') {
 275                         $optionsyes = array('id'=>$id, 'wdir'=>$wdir, 'action'=>'delete', 'confirm'=>1, 'sesskey'=>sesskey(), 'choose'=>$choose);
 276                         $optionsno  = array('id'=>$id, 'wdir'=>$wdir, 'action'=>'cancel', 'choose'=>$choose);
 277                         notice_yesno (get_string('deletecheckfiles'), 'index.php', 'index.php', $optionsyes, $optionsno, 'post', 'get');
 278                     } else {
 279
 280                         notify(get_string('warningblockingdelete', 'resource'));
 281                         $options  = array('id'=>$id, 'wdir'=>$wdir, 'action'=>'cancel', 'choose'=>$choose);
 282                         print_continue("index.php?id=$id&amp;wdir=$wdir&amp;action=cancel&amp;choose=$choose");
 283                     }
 284                 } else {
 285                     displaydir($wdir);
 286                 }
 287                 html_footer();
 288             }
 289             break;
 290
 291         case "move":
 292             html_header($course, $wdir);
 293             if (($count = setfilelist($_POST)) and confirm_sesskey()) {
 294                 $USER->fileop     = $action;
 295                 $USER->filesource = $wdir;
 296                 echo "<p class=\"centerpara\">";
 297                 print_string("selectednowmove", "moodle", $count);
 298                 echo "</p>";
 299             }
 300             displaydir($wdir);
 301             html_footer();
 302             break;
 303
 304         case "paste":
 305             html_header($course, $wdir);
 306             if (isset($USER->fileop) and ($USER->fileop == "move") and confirm_sesskey()) {
 307                 foreach ($USER->filelist as $file) {
 308                     $shortfile = basename($file);
 309                     $oldfile = $basedir.'/'.$file;
 310                     $newfile = $basedir.$wdir."/".$shortfile;
 311                     if (!rename($oldfile, $newfile)) {
 312                         echo "<p>Error: $shortfile not moved</p>";
 313                     }
 314                 }
 315             }
 316             clearfilelist();
 317             displaydir($wdir);
 318             html_footer();
 319             break;
 320
 321         case "rename":
 322             if (($name != '') and confirm_sesskey()) {
 323                 html_header($course, $wdir);
 324                 $name = clean_filename($name);
 325                 if (file_exists($basedir.$wdir."/".$name)) {
 326                     echo "<center>Error: $name already exists!</center>";
 327                 } else if (!rename($basedir.$wdir."/".$oldname, $basedir.$wdir."/".$name)) {
 328                     echo "<p align=\"center\">Error: could not rename $oldname to $name</p>";
 329                 } else {
 330                     //file was renamed now update resources if needed
 331                     require_once($CFG->dirroot.'/mod/resource/lib.php');
 332                     resource_renamefiles($course, $wdir, $oldname, $name);
 333                 }
 334                 displaydir($wdir);
 335
 336             } else {
 337                 $strrename = get_string("rename");
 338                 $strcancel = get_string("cancel");
 339                 $strrenamefileto = get_string("renamefileto", "moodle", $file);
 340                 html_header($course, $wdir, "form.name");
 341                 echo "<p>$strrenamefileto:</p>";
 342                 echo "<table><tr><td>";
 343                 echo "<form action=\"index.php\" method=\"post\">";
 344                 echo "<fieldset class=\"invisiblefieldset\">";
 345                 echo ' <input type="hidden" name="choose" value="'.$choose.'" />';
 346                 echo " <input type=\"hidden\" name=\"id\" value=\"$id\" />";
 347                 echo " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />";
 348                 echo " <input type=\"hidden\" name=\"action\" value=\"rename\" />";
 349                 echo " <input type=\"hidden\" name=\"oldname\" value=\"$file\" />";
 350                 echo " <input type=\"hidden\" name=\"sesskey\" value=\"$USER->sesskey\" />";
 351                 echo " <input type=\"text\" name=\"name\" size=\"35\" value=\"$file\" />";
 352                 echo " <input type=\"submit\" value=\"$strrename\" />";
 353                 echo "</fieldset>";
 354                 echo "</form>";
 355                 echo "</td><td>";
 356                 echo "<form action=\"index.php\" method=\"get\">";
 357                 echo "<div>";
 358                 echo ' <input type="hidden" name="choose" value="'.$choose.'" />';
 359                 echo " <input type=\"hidden\" name=\"id\" value=\"$id\" />";
 360                 echo " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />";
 361                 echo " <input type=\"hidden\" name=\"action\" value=\"cancel\" />";
 362                 echo " <input type=\"submit\" value=\"$strcancel\" />";
 363                 echo "</div>";
 364                 echo "</form>";
 365                 echo "</td></tr></table>";
 366             }
 367             html_footer();
 368             break;
 369
 370         case "makedir":
 371             if (($name != '') and confirm_sesskey()) {
 372                 html_header($course, $wdir);
 373                 $name = clean_filename($name);
 374                 if (file_exists("$basedir$wdir/$name")) {
 375                     echo "Error: $name already exists!";
 376                 } else if (! make_upload_directory("$course->id$wdir/$name")) {
 377                     echo "Error: could not create $name";
 378                 }
 379                 displaydir($wdir);
 380
 381             } else {
 382                 $strcreate = get_string("create");
 383                 $strcancel = get_string("cancel");
 384                 $strcreatefolder = get_string("createfolder", "moodle", $wdir);
 385                 html_header($course, $wdir, "form.name");
 386                 echo "<p>$strcreatefolder:</p>";
 387                 echo "<table><tr><td>";
 388                 echo "<form action=\"index.php\" method=\"post\">";
 389                 echo "<fieldset class=\"invisiblefieldset\">";
 390                 echo ' <input type="hidden" name="choose" value="'.$choose.'" />';
 391                 echo " <input type=\"hidden\" name=\"id\" value=\"$id\" />";
 392                 echo " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />";
 393                 echo " <input type=\"hidden\" name=\"action\" value=\"makedir\" />";
 394                 echo " <input type=\"text\" name=\"name\" size=\"35\" />";
 395                 echo " <input type=\"hidden\" name=\"sesskey\" value=\"$USER->sesskey\" />";
 396                 echo " <input type=\"submit\" value=\"$strcreate\" />";
 397                 echo "</fieldset>";
 398                 echo "</form>";
 399                 echo "</td><td>";
 400                 echo "<form action=\"index.php\" method=\"get\">";
 401                 echo "<div>";
 402                 echo ' <input type="hidden" name="choose" value="'.$choose.'" />';
 403                 echo " <input type=\"hidden\" name=\"id\" value=\"$id\" />";
 404                 echo " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />";
 405                 echo " <input type=\"hidden\" name=\"action\" value=\"cancel\" />";
 406                 echo " <input type=\"submit\" value=\"$strcancel\" />";
 407                 echo "</div>";
 408                 echo "</form>";
 409                 echo "</td></tr></table>";
 410             }
 411             html_footer();
 412             break;
 413
 414         case "edit":
 415             html_header($course, $wdir);
 416             if (($text != '') and confirm_sesskey()) {
 417                 $fileptr = fopen($basedir.'/'.$file,"w");
 418                 $text = preg_replace('/\x0D/', '', $text);  // http://moodle.org/mod/forum/discuss.php?d=38860
 419                 fputs($fileptr, stripslashes($text));
 420                 fclose($fileptr);
 421                 displaydir($wdir);
 422
 423             } else {
 424                 $streditfile = get_string("edit", "", "<b>$file</b>");
 425                 $fileptr  = fopen($basedir.'/'.$file, "r");
 426                 $contents = fread($fileptr, filesize($basedir.'/'.$file));
 427                 fclose($fileptr);
 428
 429                 if (mimeinfo("type", $file) == "text/html") {
 430                     $usehtmleditor = can_use_html_editor();
 431                 } else {
 432                     $usehtmleditor = false;
 433                 }
 434                 $usehtmleditor = false;    // Always keep it off for now
 435
 436                 print_heading("$streditfile");
 437
 438                 echo "<table><tr><td colspan=\"2\">";
 439                 echo "<form action=\"index.php\" method=\"post\">";
 440                 echo "<div>";
 441                 echo ' <input type="hidden" name="choose" value="'.$choose.'" />';
 442                 echo " <input type=\"hidden\" name=\"id\" value=\"$id\" />";
 443                 echo " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />";
 444                 echo " <input type=\"hidden\" name=\"file\" value=\"$file\" />";
 445                 echo " <input type=\"hidden\" name=\"action\" value=\"edit\" />";
 446                 echo " <input type=\"hidden\" name=\"sesskey\" value=\"$USER->sesskey\" />";
 447                 print_textarea($usehtmleditor, 25, 80, 680, 400, "text", $contents);
 448                 echo "</td></tr><tr><td>";
 449                 echo " <input type=\"submit\" value=\"".get_string("savechanges")."\" />";
 450                 echo "</div>";
 451                 echo "</form>";
 452                 echo "</td><td>";
 453                 echo "<form action=\"index.php\" method=\"get\">";
 454                 echo "<div>";
 455                 echo ' <input type="hidden" name="choose" value="'.$choose.'" />';
 456                 echo " <input type=\"hidden\" name=\"id\" value=\"$id\" />";
 457                 echo " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />";
 458                 echo " <input type=\"hidden\" name=\"action\" value=\"cancel\" />";
 459                 echo " <input type=\"submit\" value=\"".get_string("cancel")."\" />";
 460                 echo "</div>";
 461                 echo "</form>";
 462                 echo "</td></tr></table>";
 463
 464                 if ($usehtmleditor) {
 465                     use_html_editor();
 466                 }
 467
 468
 469             }
 470             html_footer();
 471             break;
 472
 473         case "zip":
 474             if (($name != '') and confirm_sesskey()) {
 475                 html_header($course, $wdir);
 476                 $name = clean_filename($name);
 477
 478                 $files = array();
 479                 foreach ($USER->filelist as $file) {
 480                    $files[] = "$basedir/$file";
 481                 }
 482
 483                 if (!zip_files($files,"$basedir$wdir/$name")) {
 484                     print_error("zipfileserror","error");
 485                 }
 486
 487                 clearfilelist();
 488                 displaydir($wdir);
 489
 490             } else {
 491                 html_header($course, $wdir, "form.name");
 492
 493                 if (setfilelist($_POST)) {
 494                     echo "<p align=\"center\">".get_string("youareabouttocreatezip").":</p>";
 495                     print_simple_box_start("center");
 496                     printfilelist($USER->filelist);
 497                     print_simple_box_end();
 498                     echo "<br />";
 499                     echo "<p align=\"center\">".get_string("whattocallzip")."</p>";
 500                     echo "<table><tr><td>";
 501                     echo "<form action=\"index.php\" method=\"post\">";
 502                     echo "<fieldset class=\"invisiblefieldset\">";
 503                     echo ' <input type="hidden" name="choose" value="'.$choose.'" />';
 504                     echo " <input type=\"hidden\" name=\"id\" value=\"$id\" />";
 505                     echo " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />";
 506                     echo " <input type=\"hidden\" name=\"action\" value=\"zip\" />";
 507                     echo " <input type=\"text\" name=\"name\" size=\"35\" value=\"new.zip\" />";
 508                     echo " <input type=\"hidden\" name=\"sesskey\" value=\"$USER->sesskey\" />";
 509                     echo " <input type=\"submit\" value=\"".get_string("createziparchive")."\" />";
 510                     echo "<fieldset>";
 511                     echo "</form>";
 512                     echo "</td><td>";
 513                     echo "<form action=\"index.php\" method=\"get\">";
 514                     echo "<div>";
 515                     echo ' <input type="hidden" name="choose" value="'.$choose.'" />';
 516                     echo " <input type=\"hidden\" name=\"id\" value=\"$id\" />";
 517                     echo " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />";
 518                     echo " <input type=\"hidden\" name=\"action\" value=\"cancel\" />";
 519                     echo " <input type=\"submit\" value=\"".get_string("cancel")."\" />";
 520                     echo "</div>";
 521                     echo "</form>";
 522                     echo "</td></tr></table>";
 523                 } else {
 524                     displaydir($wdir);
 525                     clearfilelist();
 526                 }
 527             }
 528             html_footer();
 529             break;
 530
 531         case "unzip":
 532             html_header($course, $wdir);
 533             if (($file != '') and confirm_sesskey()) {
 534                 $strok = get_string("ok");
 535                 $strunpacking = get_string("unpacking", "", $file);
 536
 537                 echo "<p align=\"center\">$strunpacking:</p>";
 538
 539                 $file = basename($file);
 540
 541                 if (!unzip_file("$basedir$wdir/$file")) {
 542                     print_error("unzipfileserror","error");
 543                 }
 544
 545                 echo "<div style=\"text-align:center\"><form action=\"index.php\" method=\"get\">";
 546                 echo "<div>";
 547                 echo ' <input type="hidden" name="choose" value="'.$choose.'" />';
 548                 echo " <input type=\"hidden\" name=\"id\" value=\"$id\" />";
 549                 echo " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />";
 550                 echo " <input type=\"hidden\" name=\"action\" value=\"cancel\" />";
 551                 echo " <input type=\"submit\" value=\"$strok\" />";
 552                 echo "</div>";
 553                 echo "</form>";
 554                 echo "</div>";
 555             } else {
 556                 displaydir($wdir);
 557             }
 558             html_footer();
 559             break;
 560
 561         case "listzip":
 562             html_header($course, $wdir);
 563             if (($file != '') and confirm_sesskey()) {
 564                 $strname = get_string("name");
 565                 $strsize = get_string("size");
 566                 $strmodified = get_string("modified");
 567                 $strok = get_string("ok");
 568                 $strlistfiles = get_string("listfiles", "", $file);
 569
 570                 echo "<p align=\"center\">$strlistfiles:</p>";
 571                 $file = basename($file);
 572
 573                 include_once("$CFG->libdir/pclzip/pclzip.lib.php");
 574                 $archive = new PclZip(cleardoubleslashes("$basedir$wdir/$file"));
 575                 if (!$list = $archive->listContent(cleardoubleslashes("$basedir$wdir"))) {
 576                     notify($archive->errorInfo(true));
 577
 578                 } else {
 579                     echo "<table cellpadding=\"4\" cellspacing=\"2\" border=\"0\" width=\"640\" class=\"files\">";
 580                     echo "<tr class=\"file\"><th align=\"left\" class=\"header name\" scope=\"col\">$strname</th><th align=\"right\" class=\"header size\" scope=\"col\">$strsize</th><th align=\"right\" class=\"header date\" scope=\"col\">$strmodified</th></tr>";
 581                     foreach ($list as $item) {
 582                         echo "<tr>";
 583                         print_cell("left", s($item['filename']), 'name');
 584                         if (! $item['folder']) {
 585                             print_cell("right", display_size($item['size']), 'size');
 586                         } else {
 587                             echo "<td>&nbsp;</td>";
 588                         }
 589                         $filedate  = userdate($item['mtime'], get_string("strftimedatetime"));
 590                         print_cell("right", $filedate, 'date');
 591                         echo "</tr>";
 592                     }
 593                     echo "</table>";
 594                 }
 595                 echo "<br /><center><form action=\"index.php\" method=\"get\">";
 596                 echo "<div>";
 597                 echo ' <input type="hidden" name="choose" value="'.$choose.'" />';
 598                 echo " <input type=\"hidden\" name=\"id\" value=\"$id\" />";
 599                 echo " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />";
 600                 echo " <input type=\"hidden\" name=\"action\" value=\"cancel\" />";
 601                 echo " <input type=\"submit\" value=\"$strok\" />";
 602                 echo "</div>";
 603                 echo "</form>";
 604                 echo "</center>";
 605             } else {
 606                 displaydir($wdir);
 607             }
 608             html_footer();
 609             break;
 610
 611         case "restore":
 612             html_header($course, $wdir);
 613             if (($file != '') and confirm_sesskey()) {
 614                 echo "<p align=\"center\">".get_string("youaregoingtorestorefrom").":</p>";
 615                 print_simple_box_start("center");
 616                 echo $file;
 617                 print_simple_box_end();
 618                 echo "<br />";
 619                 echo "<p align=\"center\">".get_string("areyousuretorestorethisinfo")."</p>";
 620                 $restore_path = "$CFG->wwwroot/backup/restore.php";
 621                 notice_yesno (get_string("areyousuretorestorethis"),
 622                                 $restore_path."?id=".$id."&amp;file=".cleardoubleslashes($id.$wdir."/".$file)."&amp;method=manual",
 623                                 "index.php?id=$id&amp;wdir=$wdir&amp;action=cancel");
 624             } else {
 625                 displaydir($wdir);
 626             }
 627             html_footer();
 628             break;
 629
 630         case "cancel":
 631             clearfilelist();
 632
 633         default:
 634             html_header($course, $wdir);
 635             displaydir($wdir);
 636             html_footer();
 637             break;
 638 }
 639
 640
 641 /// FILE FUNCTIONS ///////////////////////////////////////////////////////////
 642
 643
 644 function setfilelist($VARS) {
 645     global $USER;
 646
 647     $USER->filelist = array ();
 648     $USER->fileop = "";
 649
 650     $count = 0;
 651     foreach ($VARS as $key => $val) {
 652         if (substr($key,0,4) == "file") {
 653             $count++;
 654             $val = rawurldecode($val);
 655             $USER->filelist[] = clean_param($val, PARAM_PATH);
 656         }
 657     }
 658     return $count;
 659 }
 660
 661 function clearfilelist() {
 662     global $USER;
 663
 664     $USER->filelist = array ();
 665     $USER->fileop = "";
 666 }
 667
 668
 669 function printfilelist($filelist) {
 670     global $CFG, $basedir;
 671
 672     $strfolder = get_string("folder");
 673     $strfile   = get_string("file");
 674
 675     foreach ($filelist as $file) {
 676         if (is_dir($basedir.'/'.$file)) {
 677             echo '<img src="'. $CFG->pixpath .'/f/folder.gif" class="icon" alt="'. $strfolder .'" /> '. htmlspecialchars($file) .'<br />';
 678             $subfilelist = array();
 679             $currdir = opendir($basedir.'/'.$file);
 680             while (false !== ($subfile = readdir($currdir))) {
 681                 if ($subfile <> ".." && $subfile <> ".") {
 682                     $subfilelist[] = $file."/".$subfile;
 683                 }
 684             }
 685             printfilelist($subfilelist);
 686
 687         } else {
 688             $icon = mimeinfo("icon", $file);
 689             echo '<img src="'. $CFG->pixpath .'/f/'. $icon .'" class="icon" alt="'. $strfile .'" /> '. htmlspecialchars($file) .'<br />';
 690         }
 691     }
 692 }
 693
 694
 695 function print_cell($alignment='center', $text='&nbsp;', $class='') {
 696     if ($class) {
 697         $class = ' class="'.$class.'"';
 698     }
 699     echo '<td align="'.$alignment.'" style="white-space:nowrap "'.$class.'>'.$text.'</td>';
 700 }
 701
 702 function displaydir ($wdir) {
 703 //  $wdir == / or /a or /a/b/c/d  etc
 704
 705     global $basedir;
 706     global $id;
 707     global $USER, $CFG;
 708     global $choose;
 709
 710     $fullpath = $basedir.$wdir;
 711     $dirlist = array();
 712
 713     $directory = opendir($fullpath);             // Find all files
 714     while (false !== ($file = readdir($directory))) {
 715         if ($file == "." || $file == "..") {
 716             continue;
 717         }
 718
 719         if (is_dir($fullpath."/".$file)) {
 720             $dirlist[] = $file;
 721         } else {
 722             $filelist[] = $file;
 723         }
 724     }
 725     closedir($directory);
 726
 727     $strname = get_string("name");
 728     $strsize = get_string("size");
 729     $strmodified = get_string("modified");
 730     $straction = get_string("action");
 731     $strmakeafolder = get_string("makeafolder");
 732     $struploadafile = get_string("uploadafile");
 733     $strselectall = get_string("selectall");
 734     $strselectnone = get_string("deselectall");
 735     $strwithchosenfiles = get_string("withchosenfiles");
 736     $strmovetoanotherfolder = get_string("movetoanotherfolder");
 737     $strmovefilestohere = get_string("movefilestohere");
 738     $strdeletecompletely = get_string("deletecompletely");
 739     $strcreateziparchive = get_string("createziparchive");
 740     $strrename = get_string("rename");
 741     $stredit   = get_string("edit");
 742     $strunzip  = get_string("unzip");
 743     $strlist   = get_string("list");
 744     $strrestore= get_string("restore");
 745     $strchoose = get_string("choose");
 746     $strfolder = get_string("folder");
 747     $strfile   = get_string("file");
 748
 749
 750     echo "<form action=\"index.php\" method=\"post\" id=\"dirform\">";
 751     echo "<div>";
 752     echo '<input type="hidden" name="choose" value="'.$choose.'" />';
 753     // echo "<hr align=\"center\" noshade=\"noshade\" size=\"1\" />";
 754     echo "<hr/>";
 755     echo "<table border=\"0\" cellspacing=\"2\" cellpadding=\"2\" width=\"640\" class=\"files\">";
 756     echo "<tr>";
 757     echo "<th class=\"header\" scope=\"col\"></th>";
 758     echo "<th class=\"header name\" scope=\"col\">$strname</th>";
 759     echo "<th class=\"header size\" scope=\"col\">$strsize</th>";
 760     echo "<th class=\"header date\" scope=\"col\">$strmodified</th>";
 761     echo "<th class=\"header commands\" scope=\"col\">$straction</th>";
 762     echo "</tr>\n";
 763
 764     if ($wdir != "/") {
 765         $dirlist[] = '..';
 766     }
 767
 768     $count = 0;
 769
 770     if (!empty($dirlist)) {
 771         asort($dirlist);
 772         foreach ($dirlist as $dir) {
 773             echo "<tr class=\"folder\">";
 774
 775             if ($dir == '..') {
 776                 $fileurl = rawurlencode(dirname($wdir));
 777                 print_cell();
 778                 // alt attribute intentionally empty to prevent repetition in screen reader
 779                 print_cell('left', '<a href="index.php?id='.$id.'&amp;wdir='.$fileurl.'&amp;choose='.$choose.'"><img src="'.$CFG->pixpath.'/f/parent.gif" class="icon" alt="" />&nbsp;'.get_string('parentfolder').'</a>', 'name');
 780                 print_cell();
 781                 print_cell();
 782                 print_cell();
 783
 784             } else {
 785                 $count++;
 786                 $filename = $fullpath."/".$dir;
 787                 $fileurl  = rawurlencode($wdir."/".$dir);
 788                 $filesafe = rawurlencode($dir);
 789                 $filesize = display_size(get_directory_size("$fullpath/$dir"));
 790                 $filedate = userdate(filemtime($filename), get_string("strftimedatetime"));
 791                 if ($wdir.$dir === '/moddata') {
 792                     print_cell();
 793                 } else {
 794                     print_cell("center", "<input type=\"checkbox\" name=\"file$count\" value=\"$fileurl\" />", 'checkbox');
 795                 }
 796                 print_cell("left", "<a href=\"index.php?id=$id&amp;wdir=$fileurl&amp;choose=$choose\"><img src=\"$CFG->pixpath/f/folder.gif\" class=\"icon\" alt=\"$strfolder\" />&nbsp;".htmlspecialchars($dir)."</a>", 'name');
 797                 print_cell("right", $filesize, 'size');
 798                 print_cell("right", $filedate, 'date');
 799                 if ($wdir.$dir === '/moddata') {
 800                     print_cell();
 801                 } else {
 802                     print_cell("right", "<a href=\"index.php?id=$id&amp;wdir=$wdir&amp;file=$filesafe&amp;action=rename&amp;choose=$choose\">$strrename</a>", 'commands');
 803                 }
 804             }
 805
 806             echo "</tr>";
 807         }
 808     }
 809
 810
 811     if (!empty($filelist)) {
 812         asort($filelist);
 813         foreach ($filelist as $file) {
 814
 815             $icon = mimeinfo("icon", $file);
 816
 817             $count++;
 818             $filename    = $fullpath."/".$file;
 819             $fileurl     = trim($wdir, "/")."/$file";
 820             $filesafe    = rawurlencode($file);
 821             $fileurlsafe = rawurlencode($fileurl);
 822             $filedate    = userdate(filemtime($filename), get_string("strftimedatetime"));
 823
 824             $selectfile = trim($fileurl, "/");
 825
 826             echo "<tr class=\"file\">";
 827
 828             print_cell("center", "<input type=\"checkbox\" name=\"file$count\" value=\"$fileurl\" />", 'checkbox');
 829             echo "<td align=\"left\" style=\"white-space:nowrap\" class=\"name\">";
 830
 831             $ffurl = get_file_url($id.'/'.$fileurl);
 832             link_to_popup_window ($ffurl, "display",
 833                                   "<img src=\"$CFG->pixpath/f/$icon\" class=\"icon\" alt=\"$strfile\" />&nbsp;".htmlspecialchars($file),
 834                                   480, 640);
 835             echo "</td>";
 836
 837             $file_size = filesize($filename);
 838             print_cell("right", display_size($file_size), 'size');
 839             print_cell("right", $filedate, 'date');
 840
 841             if ($choose) {
 842                 $edittext = "<strong><a onclick=\"return set_value('$selectfile')\" href=\"#\">$strchoose</a></strong>&nbsp;";
 843             } else {
 844                 $edittext = '';
 845             }
 846
 847
 848             if ($icon == "text.gif" || $icon == "html.gif") {
 849                 $edittext .= "<a href=\"index.php?id=$id&amp;wdir=$wdir&amp;file=$fileurl&amp;action=edit&amp;choose=$choose\">$stredit</a>";
 850             } else if ($icon == "zip.gif") {
 851                 $edittext .= "<a href=\"index.php?id=$id&amp;wdir=$wdir&amp;file=$fileurl&amp;action=unzip&amp;sesskey=$USER->sesskey&amp;choose=$choose\">$strunzip</a>&nbsp;";
 852                 $edittext .= "<a href=\"index.php?id=$id&amp;wdir=$wdir&amp;file=$fileurl&amp;action=listzip&amp;sesskey=$USER->sesskey&amp;choose=$choose\">$strlist</a> ";
 853                 if (!empty($CFG->backup_version) and has_capability('moodle/site:restore', get_context_instance(CONTEXT_COURSE, $id))) {
 854                     $edittext .= "<a href=\"index.php?id=$id&amp;wdir=$wdir&amp;file=$filesafe&amp;action=restore&amp;sesskey=$USER->sesskey&amp;choose=$choose\">$strrestore</a> ";
 855                 }
 856             }
 857
 858             print_cell("right", "$edittext <a href=\"index.php?id=$id&amp;wdir=$wdir&amp;file=$filesafe&amp;action=rename&amp;choose=$choose\">$strrename</a>", 'commands');
 859
 860             echo "</tr>";
 861         }
 862     }
 863     echo "</table>";
 864     echo "<hr />";
 865     //echo "<hr width=\"640\" align=\"center\" noshade=\"noshade\" size=\"1\" />";
 866
 867     echo "<table border=\"0\" cellspacing=\"2\" cellpadding=\"2\" width=\"640\">";
 868     echo "<tr><td>";
 869     echo "<input type=\"hidden\" name=\"id\" value=\"$id\" />";
 870     echo '<input type="hidden" name="choose" value="'.$choose.'" />';
 871     echo "<input type=\"hidden\" name=\"wdir\" value=\"$wdir\" /> ";
 872     echo "<input type=\"hidden\" name=\"sesskey\" value=\"$USER->sesskey\" />";
 873     $options = array (
 874                    "move" => "$strmovetoanotherfolder",
 875                    "delete" => "$strdeletecompletely",
 876                    "zip" => "$strcreateziparchive"
 877                );
 878     if (!empty($count)) {
 879
 880         choose_from_menu ($options, "action", "", "$strwithchosenfiles...", "javascript:getElementById('dirform').submit()");
 881         echo '<div id="noscriptgo" style="display: inline;">';
 882         echo '<input type="submit" value="'.get_string('go').'" />';
 883         echo '<script type="text/javascript">'.
 884                "\n//<![CDATA[\n".
 885                'document.getElementById("noscriptgo").style.display = "none";'.
 886                "\n//]]>\n".'</script>';
 887         echo '</div>';
 888
 889     }
 890     echo "</td></tr></table>";
 891     echo "</div>";
 892     echo "</form>";
 893     echo "<table border=\"0\" cellspacing=\"2\" cellpadding=\"2\" width=\"640\"><tr>";
 894     echo "<td align=\"center\">";
 895     if (!empty($USER->fileop) and ($USER->fileop == "move") and ($USER->filesource <> $wdir)) {
 896         echo "<form action=\"index.php\" method=\"get\">";
 897         echo "<div>";
 898         echo ' <input type="hidden" name="choose" value="'.$choose.'" />';
 899         echo " <input type=\"hidden\" name=\"id\" value=\"$id\" />";
 900         echo " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />";
 901         echo " <input type=\"hidden\" name=\"action\" value=\"paste\" />";
 902         echo " <input type=\"hidden\" name=\"sesskey\" value=\"$USER->sesskey\" />";
 903         echo " <input type=\"submit\" value=\"$strmovefilestohere\" />";
 904         echo "</div>";
 905         echo "</form>";
 906     }
 907     echo "</td>";
 908     echo "<td align=\"right\">";
 909         echo "<form action=\"index.php\" method=\"get\">";
 910         echo "<div>";
 911         echo ' <input type="hidden" name="choose" value="'.$choose.'" />';
 912         echo " <input type=\"hidden\" name=\"id\" value=\"$id\" />";
 913         echo " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />";
 914         echo " <input type=\"hidden\" name=\"action\" value=\"makedir\" />";
 915         echo " <input type=\"submit\" value=\"$strmakeafolder\" />";
 916         echo "</div>";
 917         echo "</form>";
 918     echo "</td>";
 919     echo "<td align=\"right\">";
 920         echo "<form action=\"index.php\" method=\"get\">"; //dummy form - alignment only
 921         echo "<fieldset class=\"invisiblefieldset\">";
 922         echo " <input type=\"button\" value=\"$strselectall\" onclick=\"checkall();\" />";
 923         echo " <input type=\"button\" value=\"$strselectnone\" onclick=\"uncheckall();\" />";
 924         echo "</fieldset>";
 925         echo "</form>";
 926     echo "</td>";
 927     echo "<td align=\"right\">";
 928         echo "<form action=\"index.php\" method=\"get\">";
 929         echo "<div>";
 930         echo ' <input type="hidden" name="choose" value="'.$choose.'" />';
 931         echo " <input type=\"hidden\" name=\"id\" value=\"$id\" />";
 932         echo " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />";
 933         echo " <input type=\"hidden\" name=\"action\" value=\"upload\" />";
 934         echo " <input type=\"submit\" value=\"$struploadafile\" />";
 935         echo "</div>";
 936         echo "</form>";
 937     echo "</td></tr>";
 938     echo "</table>";
 939     echo "<hr/>";
 940     //echo "<hr width=\"640\" align=\"center\" noshade=\"noshade\" size=\"1\" />";
 941
 942 }
 943
 944 ?>