mirror of
https://github.com/moodle/moodle.git
synced 2025-01-18 22:08:20 +01:00
8ce53f0f85
when zipping and unzipping files. Unix only at this stage. (Zip interfaces for Windows are much less standardised)
652 lines
23 KiB
PHP
652 lines
23 KiB
PHP
<?PHP // $Id$
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// Manage all uploaded files in a course file area
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// All the Moodle-specific stuff is in this top section
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// Configuration and access control occurs here.
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// Must define: USER, basedir, baseweb, html_header and html_footer
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// USER is a persistent variable using sessions
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require("../config.php");
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require_variable($id);
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if (! $course = get_record("course", "id", $id) ) {
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error("That's an invalid course id");
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}
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require_login($course->id);
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if (! isteacher($course->id) ) {
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error("Only teachers can edit files");
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}
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if (!$CFG->zip) {
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$CFG->zip = "/usr/bin/zip";
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}
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if (!$CFG->unzip) {
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$CFG->unzip = "/usr/bin/unzip";
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}
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function html_footer() {
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global $course;
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echo "</td></tr></table></body></html>";
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print_footer($course);
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}
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function html_header($formfield=""){
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global $course;
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$strfiles = get_string("files");
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print_header("$course->shortname: $strfiles", "$course->fullname",
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"<A HREF=\"../course/view.php?id=$course->id\">$course->shortname</A> -> $strfiles", $formfield);
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echo "<table border=0 align=center cellspacing=3 cellpadding=3 width=640>";
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echo "<tr>";
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echo "<td colspan=\"2\">";
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}
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if (! $basedir = make_upload_directory("$course->id")) {
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error("The site administrator needs to fix the file permissions");
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}
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$baseweb = $CFG->wwwroot;
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// End of configuration and access control
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require("mimetypes.php");
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$regexp="\\.\\.";
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if (ereg( $regexp, $file, $regs )| ereg( $regexp, $wdir,$regs )) {
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$message = "Error: Directories can not contain \"..\"";
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$wdir = "/";
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$action = "";
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}
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if (!match_referer("$baseweb/files/index.php")) { // To stop spoofing
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$action="cancel";
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$wdir="/";
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}
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if (!$wdir) {
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$wdir="/";
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}
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switch ($action) {
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case "upload":
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html_header();
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if ($save) {
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if (!is_uploaded_file($userfile['tmp_name']) and $userfile['size'] > 0) {
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echo "<P>Error: That was not a valid file.";
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} else {
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$userfile_name = clean_filename($userfile['name']);
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if ($userfile_name) {
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$newfile = "$basedir$wdir/$userfile_name";
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if (move_uploaded_file($userfile['tmp_name'], $newfile)) {
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echo "Uploaded $userfile_name (".$userfile['type'].") to $wdir";
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} else {
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echo "A problem occurred while uploading '$userfile_name'";
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echo " (possibly it was too large)";
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}
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}
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}
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displaydir($wdir);
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} else {
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if (! $filesize = ini_get("upload_max_filesize")) {
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$filesize = "5M";
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}
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$upload_max_filesize = get_real_size($filesize);
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echo "<P>Upload a file (maximum size $filesize) into <B>$wdir</B>:";
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echo "<TABLE><TR><TD COLSPAN=2>";
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echo "<FORM ENCTYPE=\"multipart/form-data\" METHOD=\"post\" ACTION=index.php>";
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echo " <INPUT TYPE=hidden NAME=MAX_FILE_SIZE value=\"$upload_max_filesize\">";
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echo " <INPUT TYPE=hidden NAME=id VALUE=$id>";
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echo " <INPUT TYPE=hidden NAME=wdir VALUE=$wdir>";
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echo " <INPUT TYPE=hidden NAME=action VALUE=upload>";
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echo " <INPUT NAME=\"userfile\" TYPE=\"file\" size=\"50\">";
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echo " </TD><TR><TD WIDTH=10>";
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echo " <INPUT TYPE=submit NAME=save VALUE=\"Upload this file\">";
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echo "</FORM>";
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echo "</TD><TD WIDTH=100%>";
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echo "<FORM ACTION=index.php METHOD=get>";
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echo " <INPUT TYPE=hidden NAME=id VALUE=$id>";
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echo " <INPUT TYPE=hidden NAME=wdir VALUE=$wdir>";
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echo " <INPUT TYPE=hidden NAME=action VALUE=cancel>";
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echo " <INPUT TYPE=submit VALUE=\"Cancel\">";
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echo "</FORM>";
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echo "</TD></TR></TABLE>";
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}
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html_footer();
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break;
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case "delete":
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if ($confirm) {
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html_header();
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foreach ($USER->filelist as $file) {
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$fullfile = $basedir.$file;
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if (! fulldelete($fullfile)) {
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echo "<BR>Error: Could not delete: $fullfile";
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}
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}
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clearfilelist();
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displaydir($wdir);
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html_footer();
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} else {
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html_header();
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if (setfilelist($HTTP_POST_VARS)) {
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echo "<P ALIGN=CENTER>You are about to delete:</P>";
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print_simple_box_start("center");
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printfilelist($USER->filelist);
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print_simple_box_end();
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echo "<BR>";
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notice_yesno ("Are you sure you want to delete these?",
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"index.php?id=$id&wdir=$wdir&action=delete&confirm=1",
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"index.php?id=$id&wdir=$wdir&action=cancel");
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} else {
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displaydir($wdir);
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}
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html_footer();
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}
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break;
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case "move":
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html_header();
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if ($count = setfilelist($HTTP_POST_VARS)) {
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$USER->fileop = $action;
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$USER->filesource = $wdir;
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save_session("USER");
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echo "<P align=center>$count files selected for moving. Now go to the destination and press \"Move files to here\".</P>";
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}
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displaydir($wdir);
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html_footer();
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break;
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case "paste":
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html_header();
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if ($USER->fileop == "move") {
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foreach ($USER->filelist as $file) {
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$shortfile = basename($file);
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$oldfile = $basedir.$file;
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$newfile = $basedir.$wdir."/".$shortfile;
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if (!rename($oldfile, $newfile)) {
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echo "<P>Error: $shortfile not moved";
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}
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}
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}
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clearfilelist();
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displaydir($wdir);
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html_footer();
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break;
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case "rename":
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if ($name) {
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html_header();
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$name = clean_filename($name);
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if (file_exists($basedir.$wdir."/".$name)) {
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echo "Error: $name already exists!";
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} else if (!rename($basedir.$wdir."/".$oldname, $basedir.$wdir."/".$name)) {
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echo "Error: could not rename $oldname to $name";
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}
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displaydir($wdir);
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} else {
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html_header("form.name");
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echo "<P>Rename <B>$file</B> to:";
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echo "<TABLE><TR><TD>";
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echo "<FORM ACTION=index.php METHOD=post NAME=form>";
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echo " <INPUT TYPE=hidden NAME=id VALUE=$id>";
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echo " <INPUT TYPE=hidden NAME=wdir VALUE=$wdir>";
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echo " <INPUT TYPE=hidden NAME=action VALUE=rename>";
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echo " <INPUT TYPE=hidden NAME=oldname VALUE=\"$file\">";
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echo " <INPUT TYPE=text NAME=name SIZE=35 VALUE=\"$file\">";
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echo " <INPUT TYPE=submit VALUE=\"Rename\">";
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echo "</FORM>";
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echo "</TD><TD>";
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echo "<FORM ACTION=index.php METHOD=get>";
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echo " <INPUT TYPE=hidden NAME=id VALUE=$id>";
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echo " <INPUT TYPE=hidden NAME=wdir VALUE=$wdir>";
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echo " <INPUT TYPE=hidden NAME=action VALUE=cancel>";
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echo " <INPUT TYPE=submit VALUE=\"Cancel\">";
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echo "</FORM>";
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echo "</TD></TR></TABLE>";
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}
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html_footer();
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break;
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case "mkdir":
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if ($name) {
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html_header();
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$name = clean_filename($name);
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if (file_exists($basedir.$wdir."/".$name)) {
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echo "Error: $name already exists!";
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} else if (!mkdir($basedir.$wdir."/".$name, 0750)) {
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echo "Error: could not create $name";
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}
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displaydir($wdir);
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} else {
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html_header("form.name");
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echo "<P>Create folder in $wdir:";
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echo "<TABLE><TR><TD>";
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echo "<FORM ACTION=index.php METHOD=post NAME=form>";
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echo " <INPUT TYPE=hidden NAME=id VALUE=$id>";
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echo " <INPUT TYPE=hidden NAME=wdir VALUE=$wdir>";
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echo " <INPUT TYPE=hidden NAME=action VALUE=mkdir>";
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echo " <INPUT TYPE=text NAME=name SIZE=35>";
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echo " <INPUT TYPE=submit VALUE=\"Create\">";
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echo "</FORM>";
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echo "</TD><TD>";
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echo "<FORM ACTION=index.php METHOD=get>";
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echo " <INPUT TYPE=hidden NAME=id VALUE=$id>";
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echo " <INPUT TYPE=hidden NAME=wdir VALUE=$wdir>";
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echo " <INPUT TYPE=hidden NAME=action VALUE=cancel>";
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echo " <INPUT TYPE=submit VALUE=\"Cancel\">";
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echo "</FORM>";
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echo "</TD></TR></TABLE>";
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}
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html_footer();
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break;
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case "edit":
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html_header();
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if (isset($text)) {
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$fileptr = fopen($basedir.$file,"w");
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fputs($fileptr, stripslashes($text));
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fclose($fileptr);
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displaydir($wdir);
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} else {
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$fileptr = fopen($basedir.$file, "r");
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$contents = fread($fileptr, filesize($basedir.$file));
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fclose($fileptr);
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echo "<P>Editing <B>$file</B>:";
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echo "<TABLE><TR><TD COLSPAN=2>";
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echo "<FORM ACTION=index.php METHOD=post NAME=form>";
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echo " <INPUT TYPE=hidden NAME=id VALUE=$id>";
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echo " <INPUT TYPE=hidden NAME=wdir VALUE=\"$wdir\">";
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echo " <INPUT TYPE=hidden NAME=file VALUE=\"$file\">";
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echo " <INPUT TYPE=hidden NAME=action VALUE=edit>";
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echo "<TEXTAREA ROWS=20 COLS=60 NAME=text>";
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echo htmlspecialchars($contents);
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echo "</TEXTAREA>";
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echo "</TD></TR><TR><TD>";
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echo " <INPUT TYPE=submit VALUE=\"Save changes\">";
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echo "</FORM>";
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echo "</TD><TD>";
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echo "<FORM ACTION=index.php METHOD=get>";
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echo " <INPUT TYPE=hidden NAME=id VALUE=$id>";
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echo " <INPUT TYPE=hidden NAME=wdir VALUE=$wdir>";
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echo " <INPUT TYPE=hidden NAME=action VALUE=cancel>";
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echo " <INPUT TYPE=submit VALUE=\"Cancel\">";
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echo "</FORM>";
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echo "</TD></TR></TABLE>";
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}
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html_footer();
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break;
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case "zip":
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if ($name) {
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html_header();
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$name = clean_filename($name);
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$files = "";
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foreach ($USER->filelist as $file) {
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$files .= basename($file);
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$files .= " ";
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}
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$command = "cd $basedir/$wdir ; $CFG->zip -r $name $files";
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Exec($command);
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clearfilelist();
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displaydir($wdir);
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} else {
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html_header("form.name");
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if (setfilelist($HTTP_POST_VARS)) {
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echo "<P ALIGN=CENTER>You are about create a zip file containing:</P>";
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print_simple_box_start("center");
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printfilelist($USER->filelist);
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print_simple_box_end();
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echo "<BR>";
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echo "<P ALIGN=CENTER>What do you want to call the zip file?";
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echo "<TABLE><TR><TD>";
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echo "<FORM ACTION=index.php METHOD=post NAME=form>";
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echo " <INPUT TYPE=hidden NAME=id VALUE=$id>";
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echo " <INPUT TYPE=hidden NAME=wdir VALUE=\"$wdir\">";
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echo " <INPUT TYPE=hidden NAME=action VALUE=zip>";
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echo " <INPUT TYPE=text NAME=name SIZE=35 VALUE=\"new.zip\">";
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echo " <INPUT TYPE=submit VALUE=\"Create zip file\">";
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echo "</FORM>";
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echo "</TD><TD>";
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echo "<FORM ACTION=index.php METHOD=get>";
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echo " <INPUT TYPE=hidden NAME=id VALUE=$id>";
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echo " <INPUT TYPE=hidden NAME=wdir VALUE=$wdir>";
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echo " <INPUT TYPE=hidden NAME=action VALUE=cancel>";
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echo " <INPUT TYPE=submit VALUE=\"Cancel\">";
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echo "</FORM>";
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echo "</TD></TR></TABLE>";
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} else {
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displaydir($wdir);
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clearfilelist();
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}
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}
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html_footer();
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break;
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case "unzip":
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html_header();
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if ($file) {
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echo "<P ALIGN=CENTER>Unzipping $file:</P>";
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print_simple_box_start("center");
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echo "<PRE>";
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$file = basename($file);
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$command = "cd $basedir/$wdir ; $CFG->unzip -o $file 2>&1";
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passthru($command);
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echo "</PRE>";
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print_simple_box_end();
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echo "<CENTER><FORM ACTION=index.php METHOD=get>";
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echo " <INPUT TYPE=hidden NAME=id VALUE=$id>";
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echo " <INPUT TYPE=hidden NAME=wdir VALUE=$wdir>";
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echo " <INPUT TYPE=hidden NAME=action VALUE=cancel>";
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echo " <INPUT TYPE=submit VALUE=\"OK\">";
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echo "</FORM>";
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echo "</CENTER>";
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} else {
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displaydir($wdir);
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}
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html_footer();
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break;
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case "cancel";
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clearfilelist();
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default:
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html_header();
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displaydir($wdir);
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html_footer();
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break;
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}
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/// FILE FUNCTIONS ///////////////////////////////////////////////////////////
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function fulldelete($location) {
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if (is_dir($location)) {
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$currdir = opendir($location);
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while ($file = readdir($currdir)) {
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if ($file <> ".." && $file <> ".") {
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$fullfile = $location."/".$file;
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if (is_dir($fullfile)) {
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if (!fulldelete($fullfile)) {
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return false;
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}
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} else {
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if (!unlink($fullfile)) {
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return false;
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}
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}
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}
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}
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closedir($currdir);
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if (! rmdir($location)) {
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return false;
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}
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} else {
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if (!unlink($location)) {
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return false;
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}
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}
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return true;
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}
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function setfilelist($VARS) {
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global $USER;
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$USER->filelist = array ();
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$USER->fileop = "";
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$count = 0;
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foreach ($VARS as $key => $val) {
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if (substr($key,0,4) == "file") {
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$count++;
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$USER->filelist[] = rawurldecode($val);
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}
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}
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save_session("USER");
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return $count;
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}
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function clearfilelist() {
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global $USER;
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$USER->filelist = array ();
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$USER->fileop = "";
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save_session("USER");
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}
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function printfilelist($filelist) {
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global $basedir;
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foreach ($filelist as $file) {
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if (is_dir($basedir.$file)) {
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echo "<IMG SRC=\"pix/folder.gif\" HEIGHT=16 WIDTH=16> $file<BR>";
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$subfilelist = array();
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$currdir = opendir($basedir.$file);
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while ($subfile = readdir($currdir)) {
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if ($subfile <> ".." && $subfile <> ".") {
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$subfilelist[] = $file."/".$subfile;
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}
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}
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printfilelist($subfilelist);
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} else {
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$icon = mimeinfo("icon", $file);
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echo "<IMG SRC=\"pix/$icon\" HEIGHT=16 WIDTH=16> $file<BR>";
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}
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}
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}
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function display_size($file) {
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$file_size = filesize($file);
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if ($file_size >= 1073741824) {
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$file_size = round($file_size / 1073741824 * 100) / 100 . "g";
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} else if ($file_size >= 1048576) {
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$file_size = round($file_size / 1048576 * 100) / 100 . "m";
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} else if ($file_size >= 1024) {
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$file_size = round($file_size / 1024 * 100) / 100 . "k";
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} else {
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$file_size = $file_size . "b";
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}
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return $file_size;
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}
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function print_cell($alignment="center", $text=" ") {
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echo "<TD ALIGN=\"$alignment\" NOWRAP>";
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echo "<FONT SIZE=\"-1\" FACE=\"Arial, Helvetica\">";
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echo "$text";
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echo "</FONT>";
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echo "</TD>\n";
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}
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function displaydir ($wdir) {
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// $wdir == / or /a or /a/b/c/d etc
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global $basedir;
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global $id;
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global $USER;
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$fullpath = $basedir.$wdir;
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$directory = opendir($fullpath); // Find all files
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while ($file = readdir($directory)) {
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if ($file == "." || $file == "..") {
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continue;
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}
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if (is_dir($fullpath."/".$file)) {
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$dirlist[] = $file;
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} else {
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$filelist[] = $file;
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}
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}
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closedir($directory);
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echo "<FORM ACTION=\"index.php\" METHOD=post NAME=dirform>";
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echo "<HR WIDTH=640 ALIGN=CENTER NOSHADE SIZE=1>";
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echo "<TABLE BORDER=0 cellspacing=2 cellpadding=2 width=640>";
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echo "<TR><TD> </TD><TD COLSPAN=5><P><B>Current folder: $wdir</B></P>";
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echo "<TR>";
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echo "<TH WIDTH=5></TH>";
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echo "<TH ALIGN=left>Name</TH>";
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echo "<TH ALIGN=right>Size</TH>";
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echo "<TH ALIGN=right>Modified</TH>";
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echo "<TH ALIGN=right>Action</TH>";
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echo "</TR>\n";
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if ($wdir == "/") {
|
|
$wdir = "";
|
|
} else {
|
|
$updir = dirname($wdir);
|
|
echo "<TR>";
|
|
print_cell("center", "");
|
|
print_cell("left", "<A HREF=\"index.php?id=$id&wdir=$updir\"><IMG SRC=\"pix/parent.gif\" HEIGHT=16 WIDTH=16 BORDER=0 ALT=\"Parent folder\"></A> <A HREF=\"index.php?id=$id&wdir=$updir\">Up to $updir</A>");
|
|
echo "</TR>\n";
|
|
}
|
|
|
|
|
|
$count = 0;
|
|
|
|
if ($dirlist) {
|
|
asort($dirlist);
|
|
foreach ($dirlist as $dir) {
|
|
|
|
$count++;
|
|
|
|
$filename = $fullpath."/".$dir;
|
|
$fileurl = rawurlencode($wdir."/".$dir);
|
|
$filesafe = rawurlencode($dir);
|
|
$filedate = userdate(filectime($filename), "%e %b %Y, %I:%M %p");
|
|
|
|
echo "<TR>";
|
|
|
|
print_cell("center", "<INPUT TYPE=checkbox NAME=\"file$count\" VALUE=\"$fileurl\">");
|
|
print_cell("left", "<A HREF=\"index.php?id=$id&wdir=$fileurl\"><IMG SRC=\"pix/folder.gif\" HEIGHT=16 WIDTH=16 BORDER=0 ALT=\"Folder\"></A> <A HREF=\"index.php?id=$id&wdir=$fileurl\">".htmlspecialchars($dir)."</A>");
|
|
print_cell("right", "-");
|
|
print_cell("right", $filedate);
|
|
print_cell("right", "<A HREF=\"index.php?id=$id&wdir=$wdir&file=$filesafe&action=rename\">rename</A>");
|
|
|
|
echo "</TR>";
|
|
}
|
|
}
|
|
|
|
|
|
if ($filelist) {
|
|
asort($filelist);
|
|
foreach ($filelist as $file) {
|
|
|
|
$icon = mimeinfo("icon", $file);
|
|
|
|
$count++;
|
|
$filename = $fullpath."/".$file;
|
|
$fileurl = "$wdir/$file";
|
|
$filesafe = rawurlencode($file);
|
|
$fileurlsafe = rawurlencode($fileurl);
|
|
$filedate = userdate(filectime($filename), "%e %b %Y, %I:%M %p");
|
|
|
|
echo "<TR>";
|
|
|
|
print_cell("center", "<INPUT TYPE=checkbox NAME=\"file$count\" VALUE=\"$fileurl\">");
|
|
echo "<TD ALIGN=left NOWRAP>";
|
|
link_to_popup_window ("/file.php/$id$fileurl", "display",
|
|
"<IMG SRC=\"pix/$icon\" HEIGHT=16 WIDTH=16 BORDER=0 ALT=\"File\">",
|
|
480, 640);
|
|
echo "<FONT SIZE=\"-1\" FACE=\"Arial, Helvetica\">";
|
|
link_to_popup_window ("/file.php/$id$fileurl", "display",
|
|
htmlspecialchars($file),
|
|
480, 640);
|
|
echo "</FONT></TD>";
|
|
|
|
print_cell("right", display_size($filename));
|
|
print_cell("right", $filedate);
|
|
if ($icon == "text.gif" || $icon == "html.gif") {
|
|
$edittext = "<A HREF=\"index.php?id=$id&wdir=$wdir&file=$fileurl&action=edit\">edit</A>";
|
|
} else if ($icon == "zip.gif") {
|
|
$edittext = "<A HREF=\"index.php?id=$id&wdir=$wdir&file=$fileurl&action=unzip\">unzip</A>";
|
|
} else {
|
|
$edittext = "";
|
|
}
|
|
print_cell("right", "$edittext <A HREF=\"index.php?id=$id&wdir=$wdir&file=$filesafe&action=rename\">rename</A>");
|
|
|
|
echo "</TR>";
|
|
}
|
|
}
|
|
echo "</TABLE>";
|
|
echo "<HR WIDTH=640 ALIGN=CENTER NOSHADE SIZE=1>";
|
|
|
|
if (!$wdir) {
|
|
$wdir = "/";
|
|
}
|
|
|
|
echo "<TABLE BORDER=0 cellspacing=2 cellpadding=2 width=640>";
|
|
echo "<TR><TD>";
|
|
echo "<INPUT TYPE=hidden NAME=id VALUE=\"$id\">";
|
|
echo "<INPUT TYPE=hidden NAME=wdir VALUE=\"$wdir\"> ";
|
|
$options = array (
|
|
"move" => "Move to another folder",
|
|
"delete" => "Delete completely",
|
|
"zip" => "Create zip archive"
|
|
);
|
|
if ($count) {
|
|
choose_from_menu ($options, "action", "", $nothing="With chosen files...", "javascript:document.dirform.submit()");
|
|
//echo "<INPUT TYPE=submit VALUE=Go>";
|
|
}
|
|
|
|
echo "</FORM>";
|
|
echo "<TD ALIGN=center>";
|
|
if (($USER->fileop == "move") && $USER->filesource <> $wdir) {
|
|
echo "<FORM ACTION=index.php METHOD=get>";
|
|
echo " <INPUT TYPE=hidden NAME=id VALUE=$id>";
|
|
echo " <INPUT TYPE=hidden NAME=wdir VALUE=\"$wdir\">";
|
|
echo " <INPUT TYPE=hidden NAME=action VALUE=paste>";
|
|
echo " <INPUT TYPE=submit VALUE=\"Move files to here\">";
|
|
echo "</FORM>";
|
|
}
|
|
echo "<TD ALIGN=right>";
|
|
echo "<FORM ACTION=index.php METHOD=get>";
|
|
echo " <INPUT TYPE=hidden NAME=id VALUE=$id>";
|
|
echo " <INPUT TYPE=hidden NAME=wdir VALUE=\"$wdir\">";
|
|
echo " <INPUT TYPE=hidden NAME=action VALUE=mkdir>";
|
|
echo " <INPUT TYPE=submit VALUE=\"Make a folder\">";
|
|
echo "</FORM>";
|
|
echo "</TD>";
|
|
echo "<TD ALIGN=right>";
|
|
echo "<FORM ACTION=index.php METHOD=get>";
|
|
echo " <INPUT TYPE=hidden NAME=id VALUE=$id>";
|
|
echo " <INPUT TYPE=hidden NAME=wdir VALUE=\"$wdir\">";
|
|
echo " <INPUT TYPE=hidden NAME=action VALUE=upload>";
|
|
echo " <INPUT TYPE=submit VALUE=\"Upload a file\">";
|
|
echo "</FORM>";
|
|
echo "</TD></TR>";
|
|
echo "</TABLE>";
|
|
echo "<HR WIDTH=640 ALIGN=CENTER NOSHADE SIZE=1>";
|
|
|
|
}
|
|
|
|
?>
|