#Gocha#

<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

require_once('../../config.php');
require_once($CFG->libdir . '/filelib.php');
require_once($CFG->libdir . '/adminlib.php');
require_once('../../repository/lib.php');
require_once('repos/get_repo.php');

$id = required_param('id', PARAM_INT);
$file = optional_param('file', '', PARAM_PATH);
$wdir = optional_param('wdir', '', PARAM_PATH);
$action = optional_param('action', '', PARAM_ACTION);
$name = optional_param('name', '', PARAM_FILE);
$oldname = optional_param('oldname', '', PARAM_FILE);
$choose = optional_param('choose', '', PARAM_FILE); //In fact it is always 'formname.inputname'.
$save = optional_param('save', 0, PARAM_BOOL);
$text = optional_param('textdata', '', PARAM_RAW);
$confirm = optional_param('confirm', 0, PARAM_BOOL);
$listonly = optional_param('listonly', 3, PARAM_INT);
$itemid = optional_param('itemid', SYSCONTEXTID, PARAM_INT);
$client_id = optional_param('client_id', '', PARAM_ALPHANUM);
$savepath = optional_param('savepath', '', PARAM_PATH);
$draftpath = optional_param('draftpath', '', PARAM_PATH);
$contextid = optional_param('ctx_id', SYSCONTEXTID, PARAM_INT);
$shortpath = optional_param('shortpath', 0, PARAM_BOOL);
$noview = optional_param('noview', 0, PARAM_BOOL);
$hiderepolist = optional_param('hiderepolist', 0, PARAM_BOOL);

global $DB, $PAGE;

$PAGE->set_url('/blocks/repo_filemanager/index.php');
if ($choose) {
    $PAGE->set_pagelayout('popup');
} else {
    $PAGE->blocks->show_only_fake_blocks();
}

if ($choose) {
    if (count(explode('.', $choose)) > 2) {
        error('Incorrect format for choose parameter');
    }
}

if (!$course = $DB->get_record("course", array("id" => $id))) {
    error("That's an invalid course id");
}

require_login($course);
$scont = context_system::instance();
$modinfo = get_fast_modinfo($course);

if (method_exists("context_course", "instance")) {
    $context = context_course::instance($id);
} else {
    $context = get_context_instance(CONTEXT_COURSE, $id);
}

if (method_exists("context_system", "instance")) {
    $syscontext = context_system::instance();
} else {
    $syscontext = get_system_context();
}

$params = array('context' => array($context, $syscontext), 'currentcontext' => $context, 'onlyvisible' => true, 'type' => null);
$repolist = repository::get_instances($params);
$repoinstances = array();

// Filter the repos list.

$firstmr = - 1;
$repoinstances = array();
foreach ($repolist as $repoi) {
    /****Set coursefilearea as default view, since this is the only type with useful functions for now****/
    if ($repoi->get_meta()->type == "coursefilearea") {
        $firstmr = $repoi->id;
    }
    /****Ignore upload repo type, this will be handled differently****/
    if ($repoi->get_meta()->type != "upload") {
        if ($listonly == 3) {
            $repoinstances[] = $repoi;
        } else {
            /***Filter the list of repositories so that only the relevant types are shown***/
            if ($repoi->supported_returntypes() == $listonly || $repoi->supported_returntypes() == 3) {
                $repoinstances[] = $repoi;
            }
        }
    }
}
if ($firstmr == - 1) {
    $firstmr = current($repoinstances)->id;
}

$repoid = optional_param('repoid', $firstmr, PARAM_INT);

// Find the requested repo, use current if it can't be found.
$repoi = false;
foreach ($repoinstances as $instance) if ($instance->id == $repoid) {
    $repoi = $instance;
    break;
}
if ($repoi == false) {
    reset($repoinstances);
    $repoid = current($repoinstances)->id;
    $repoi = current($repoinstances);
}

// Get the repo manager object.
$repo = get_repomanager_instance($repoi, $course);

// Common parameters for all urls.
$data_params = array('id' => $id, 'choose' => $choose, 'listonly' => $listonly, 'itemid' => $itemid,
'shortpath' => $shortpath, 'client_id' => $client_id, 'draftpath' => $draftpath, 'savepath' => $savepath,
'ctx_id' => $contextid, 'hiderepolist' => $hiderepolist);
$form_params = "";
$link_params = "";

foreach ($data_params as $key => $value) {
    $form_params .= "<input type=\"hidden\" name=\"" . $key . "\" value=\"" . $value . "\" />\n";
    $link_params .= $key . "=" . $value . "&amp;";
}

$PAGE->set_url('/blocks/repo_filemanager/index.php?' . $link_params);

// End of configuration and access control.

$baseweb = $CFG->wwwroot;
switch ($action) {
    case "upload":
        html_header($course, $wdir);
        if ($save and confirm_sesskey()) {
            $m = $repo->upload($wdir);
            if (strlen($m) > 0) {
                notify($m);
            }
            displaydir($wdir);
        } else {
            $filesize = display_size(get_max_upload_file_size($repo->max_upload_bytes()));
            $struploadafile = get_string("uploadafile");
            $struploadthisfile = get_string("uploadthisfile");
            $strmaxsize = get_string("maxsize", "", $filesize);
            $strcancel = get_string("cancel");
            echo "<p>$struploadafile ($strmaxsize) --> <b>$wdir</b></p>\n" .
            "<form enctype=\"multipart/form-data\" method=\"post\" action=\"index.php\">\n" .
            "<div>\n" . "<table><tr><td colspan=\"2\">\n" . " <input type=\"hidden\" name=\"repoid\" value=\"" .
            $repoid . "\" />\n" . $form_params . " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />\n" .
            " <input type=\"hidden\" name=\"action\" value=\"upload\" />\n" .
            " <input type=\"hidden\" name=\"sesskey\" value=\"$USER->sesskey\" />\n";

upload_print_form_fragment_old(1, array('userfile'), null, false, null,
            get_max_upload_file_size($repo->max_upload_bytes()), 0, false);

echo " </td></tr></table>\n" . " <input type=\"submit\" name=\"save\" value=\"$struploadthisfile\" />\n" .
            "</div>\n" . "</form>\n" . "<form action=\"index.php\" method=\"get\">\n" .
            "<div>\n" . " <input type=\"hidden\" name=\"repoid\" value=\"" . $repoid . "\" />\n" .
            $form_params . " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />\n" .
            " <input type=\"hidden\" name=\"action\" value=\"cancel\" />\n" .
            " <input type=\"submit\" value=\"$strcancel\" />\n" . "</div>\n" . "</form>\n";
        }
        break;
    case "delete":
        if ($confirm and confirm_sesskey()) {
            html_header($course, $wdir);
            if (!empty($USER->filelist)) {
                echo $repo->delete_files($USER->filelist);
            }
            clearfilelist();
            displaydir($wdir);
        } else {
            html_header($course, $wdir);
            if (setfilelist($_POST)) {
                notify(get_string('deletecheckwarning') . ':');
                $OUTPUT->box_start("center");
                printfilelist($USER->filelist);
                $OUTPUT->box_end();
                echo "<br />";
                require_once($CFG->dirroot . '/mod/resource/lib.php');

$optionsyes = array_merge(array('id' => $id, 'repoid' => $repoid, 'wdir' => $wdir,
                'action' => 'delete', 'confirm' => 1, 'sesskey' => sesskey()), $data_params);
                $optionsno = array_merge(array('id' => $id, 'repoid' => $repoid, 'wdir' => $wdir, 'action' => 'cancel'),
                $data_params);
                $buttoncontinue = new single_button(new moodle_url('index.php', $optionsyes), get_string('yes'), 'post');
                $buttoncancel = new single_button(new moodle_url('index.php', $optionsno), get_string('no'), 'post');
                echo $OUTPUT->confirm(get_string('deletecheckfiles'), $buttoncontinue, $buttoncancel);

} else {
                displaydir($wdir);
            }
        }
        break;
    case "move":
        html_header($course, $wdir);
        if (($count = setfilelist($_POST)) and confirm_sesskey()) {
            $USER->fileop = $action;
            $USER->filesource = $wdir;
            echo "<p class=\"centerpara\">";
            print_string("selectednowmove", "moodle", $count);
            echo "</p>";
        }
        displaydir($wdir);
        break;
    case "paste":
        html_header($course, $wdir);
        if (isset($USER->fileop) and ($USER->fileop == "move") and confirm_sesskey()) {
            echo $repo->move_files($USER->filelist, $wdir);
        }
        clearfilelist();
        displaydir($wdir);
        break;
    case "rename":
        if (($name != '') and confirm_sesskey()) {
            html_header($course, $wdir);
            $repo->rename_file($oldname, $name, $wdir);
            displaydir($wdir);
        } else {
            $strrename = get_string("rename");
            $strcancel = get_string("cancel");
            $strrenamefileto = get_string("renamefileto", "moodle", $file);
            html_header($course, $wdir, "form.name");
            echo "<p>$strrenamefileto:</p>" . "<table><tr><td>" . "<form action=\"index.php\" method=\"post\">" .
            "<fieldset class=\"invisiblefieldset\">" . " <input type=\"hidden\" name=\"repoid\" value=\"" .
            $repoid . "\" />" . $form_params . " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />" .
            " <input type=\"hidden\" name=\"action\" value=\"rename\" />" .
            " <input type=\"hidden\" name=\"oldname\" value=\"$file\" />" .
            " <input type=\"hidden\" name=\"sesskey\" value=\"$USER->sesskey\" />" .
            " <input type=\"text\" name=\"name\" size=\"35\" value=\"$file\" />" .
            " <input type=\"submit\" value=\"$strrename\" />" . "</fieldset>" .
            "</form>" . "</td><td>\n" . "<form action=\"index.php\" method=\"get\">" .
            "<div>" . " <input type=\"hidden\" name=\"repoid\" value=\"" . $repoid . "\" />" .
            $form_params . " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />" .
            " <input type=\"hidden\" name=\"action\" value=\"cancel\" />" .
            " <input type=\"submit\" value=\"$strcancel\" />" . "</div>" . "</form>" . "</td></tr></table>";
        }
        break;
    case "makedir":
        if (($name != '') and confirm_sesskey()) {
            html_header($course, $wdir);
            echo $repo->mkdir($wdir, $name);
            displaydir($wdir);
        } else {
            $strcreate = get_string("create");
            $strcancel = get_string("cancel");
            $strcreatefolder = get_string("createfolder", "moodle", $wdir);
            html_header($course, $wdir, "form.name");
            echo "<p>$strcreatefolder:</p>" . "<table><tr><td>" . "<form action=\"index.php\" method=\"post\">" .
            "<fieldset class=\"invisiblefieldset\">" . " <input type=\"hidden\" name=\"repoid\" value=\"" .
            $repoid . "\" />" . $form_params . " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />" .
            " <input type=\"hidden\" name=\"action\" value=\"makedir\" />" . " <input type=\"text\" name=\"name\" size=\"35\" />" .
            " <input type=\"hidden\" name=\"sesskey\" value=\"$USER->sesskey\" />" .
            " <input type=\"submit\" value=\"$strcreate\" />" . "</fieldset>" . "</form>" .
            "</td><td>" . "<form action=\"index.php\" method=\"get\">" . "<div>" .
            " <input type=\"hidden\" name=\"repoid\" value=\"" . $repoid . "\" />" .
            $form_params . " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />" .
            " <input type=\"hidden\" name=\"action\" value=\"cancel\" />" .
            " <input type=\"submit\" value=\"$strcancel\" />" . "</div>" . "</form>" . "</td></tr></table>";
        }
        break;
    case "edit":
        html_header($course, $wdir);
        if ((strlen($text) > 0) && confirm_sesskey()) {
            $repo->save_text($file, $text);
            displaydir($wdir);
        } else {
            $streditfile = get_string("edit", "", "<b>$file</b>");
            $contents = $repo->get_text($file);

$OUTPUT->heading("$streditfile");
            echo "<form action=\"index.php\" method=\"post\">" . "<div style=\"text-align:center\">" .
            " <input type=\"hidden\" name=\"repoid\" value=\"" . $repoid . "\" />" . $form_params .
            " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />" .
            " <input type=\"hidden\" name=\"file\" value=\"$file\" />" .
            " <input type=\"hidden\" name=\"action\" value=\"edit\" />" .
            " <input type=\"hidden\" name=\"sesskey\" value=\"$USER->sesskey\" />";

block_repo_filemanager_print_textarea(25, 80, 750, 500, "textdata", $contents);

echo "<br /><br /><input type=\"submit\" value=\"" . get_string("savechanges") . "\" />" . "</form><br /><br />".
            "<form action=\"index.php\" method=\"get\">" .
            " <input type=\"hidden\" name=\"repoid\" value=\"" .
            $repoid . "\" />" . $form_params . " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />" .
            " <input type=\"hidden\" name=\"action\" value=\"cancel\" />" . " <input type=\"submit\" value=\""
            . get_string("cancel") . "\" />" . "</div>" . "</form>";

}
        break;
    case "zip":
        if (($name != '') and confirm_sesskey()) {
            html_header($course, $wdir);
            $m = $repo->zip_files($USER->filelist, $wdir . '/' . $name);
            if (strlen($m) > 0) {
                print_error($m);
            }
            clearfilelist();
            displaydir($wdir);
        } else {
            html_header($course, $wdir, "form.name");
            if (setfilelist($_POST)) {
                echo "<p style=\"text-align:center;\">" . get_string("youareabouttocreatezip") . ":</p>";
                $OUTPUT->box_start("center");
                printfilelist($USER->filelist);
                $OUTPUT->box_end();
                echo "<br />" . "<p style=\"text-align:center;\">" . get_string("whattocallzip") . "</p>" . "<table><tr><td>" .
                "<form action=\"index.php\" method=\"post\">" . "<fieldset class=\"invisiblefieldset\">" .
                " <input type=\"hidden\" name=\"repoid\" value=\"" . $repoid . "\" />" .
                $form_params . " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />" .
                " <input type=\"hidden\" name=\"action\" value=\"zip\" />" .
                " <input type=\"text\" name=\"name\" size=\"35\" value=\"new.zip\" />" .
                " <input type=\"hidden\" name=\"sesskey\" value=\"$USER->sesskey\" />" .
                " <input type=\"submit\" value=\"" . get_string("createziparchive") . "\" />" .
                "</fieldset>" . "</form>" . "</td><td>" . "<form action=\"index.php\" method=\"get\">" .
                "<div>" . " <input type=\"hidden\" name=\"repoid\" value=\"" . $repoid . "\" />" .
                $form_params . " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />" .
                " <input type=\"hidden\" name=\"action\" value=\"cancel\" />" .
                " <input type=\"submit\" value=\"" . get_string("cancel") . "\" />" .
                "</div>" . "</form>" . "</td></tr></table>";
            } else {
                displaydir($wdir);
                clearfilelist();
            }
        }
        break;
    case "unzip":
        html_header($course, $wdir);
        if (($file != '') and confirm_sesskey()) {
            $strok = get_string("ok");
            $strunpacking = get_string("unpacking", "", $file);
            echo "<p style=\"text-align:center;\">$strunpacking:</p>";
            $file = basename($file);
            $m = $repo->unzip_file($wdir . '/' . $file);
            if (strlen($m) > 0) {
                print_error($m);
            }
            echo "<div style=\"text-align:center\"><form action=\"index.php\" method=\"get\">" .
            "<div>" . " <input type=\"hidden\" name=\"repoid\" value=\"" . $repoid . "\" />" .
            $form_params . " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />" .
            " <input type=\"hidden\" name=\"action\" value=\"cancel\" />" .
            " <input type=\"submit\" value=\"$strok\" />" . "</div>" . "</form>" . "</div>";
        } else {
            displaydir($wdir);
        }
        break;
    case "listzip":
        html_header($course, $wdir);
        if (($file != '') and confirm_sesskey()) {
            $strname = get_string("name");
            $strsize = get_string("size");
            $strmodified = get_string("modified");
            $strok = get_string("ok");
            $strlistfiles = get_string("listfiles", "", $file);
            echo "<p align=\"center\">$strlistfiles:</p>";
            $file = basename($file);
            $list = $repo->list_zip("$wdir/$file");
            if (is_string($list)) {
                notify($list);
            } else {
                echo "<table cellpadding=\"4\" cellspacing=\"2\" border=\"0\" class=\"files\">" .
                "<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\">$strmodified</th></tr>";
                foreach ($list as $item) {
                    echo "<tr>";
                    print_cell("left", s($item->pathname));
                    if (!$item->is_directory) {
                        print_cell("right", display_size($item->size));
                    } else {
                        echo "<td>&nbsp;</td>";
                    }
                    $filedate = userdate($item->mtime, get_string("strftimedatetime"));
                    print_cell("right", $filedate);
                    echo "</tr>";
                }
                echo "</table>";
            }
            echo "<br /><form action=\"index.php\" method=\"get\">" . "<div style=\"text-align:center\">" .
            " <input type=\"hidden\" name=\"repoid\" value=\"" . $repoid . "\" />" . $form_params .
            " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />" .
            " <input type=\"hidden\" name=\"action\" value=\"cancel\" />" .
            " <input type=\"submit\" value=\"$strok\" />" . "</div>" . "</form>";
        } else {
            displaydir($wdir);
        }
        break;
    case "cancel":
        clearfilelist();
    default:
        html_header($course, $wdir);
        if (get_class($repo) != "block_repofile_type") {
            displaydir($wdir);
        } else {
            if ($hiderepolist) {
                echo "<br />";
            } else {
                print_repo_list();
            }
            notify(get_string("not_manageable", "block_repo_filemanager"));
        }
        break;
}
html_footer();

/****Display Functions****/

<?php
        } elseif (count($chooseparts) == 1) {
?>
            <script type="text/javascript">
            //<![CDATA[
            function set_value(txt) {
                opener.document.getElementById('<?php echo $chooseparts[0] ?>').value = txt;
                window.close();
            }
            //]]>
            </script>

<?php
        }
        echo '<div id="navbar"><h2>' . $fullnav . '</h2></div>';
        //*********What to do about this ??*********
        //if ($course->id == SITEID and $wdir != "/backupdata") {
        //    print_heading(get_string("publicsitefileswarning3"), "center", 2);
        //}

} else {
        foreach ($navlinks as $navlink) {
            if (array_key_exists('name', $navlink)) {
                if (array_key_exists('link', $navlink) && !empty($navlink['link'])) {
                    $link = $navlink['link'];
                } else {
                    $link = null;
                }
                $PAGE->navbar->add($navlink['name'], $link);
            }
        }
        $PAGE->set_title($course->shortname . ": " . get_string('pluginname', 'block_repo_filemanager'));
        $PAGE->set_heading($course->fullname);
        echo $OUTPUT->header();
    }
    if ($noview) {
        notify(get_string('noview', 'block_repo_filemanager'));
    }
    echo "<table style=\"margin-left:auto;margin-right:auto;\"><tr><td>";
}

function print_repo_list() {
    global $repoinstances, $form_params, $course, $repoid;

echo "<table><tr><th>" . get_string("available_repo", "block_repo_filemanager") .
    ":</th>" . "<td><form method=\"post\" action=\"index.php\" id=\"selrepo\"><div>\n" .
    $form_params . "<input type=\"hidden\" name=\"id\" value=\"" . $course->id . "\" />\n" .
    "<select name=\"repoid\" onchange=\"document.getElementById('selrepo').submit()\">\n";
    foreach ($repoinstances as $r) {
        $meta = $r->get_meta();
        if ($r->id == $repoid) {
            echo "<option value=\"" . $r->id . "\" selected=\"selected\">" . $meta->name . "</option>\n";
        } else {
            echo "<option value=\"" . $r->id . "\">" . $meta->name . "</option>\n";
        }
    }
    echo "</select></div>" . "<noscript><div><input type=\"submit\" value=\"" . get_string('go') .
    "\" /></div></noscript>" . "</form></td></tr></table>\n";
}

function html_footer() {
    global $COURSE, $OUTPUT;
    echo '</td></tr></table>';
    echo $OUTPUT->footer($COURSE);
}

/****File Functions*******/

function print_cell($alignment = 'center', $text = '&nbsp;', $class = 'cell') {
    $class = ' class="' . $class . '"';
    echo '<td align="' . $alignment . '" style="white-space:nowrap "' . $class . '>' . $text . '</td>';
}

function displaydir($wdir) {
    global $repo;
    if ($repo->is_browsable()) {
        displayfiledir($wdir);
    } else if ($repo->is_searchable()) {
        searchabledisplay($wdir);
    }
}

if (!empty($USER->fileop) and ($USER->fileop == "move") and ($USER->filesource <> $wdir)) {
        echo "<form action=\"index.php\" method=\"get\">" . "<div>" .
        " <input type=\"hidden\" name=\"repoid\" value=\"" . $repoid . "\" />" .
        $form_params . " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />" .
        " <input type=\"hidden\" name=\"action\" value=\"paste\" />" .
        " <input type=\"hidden\" name=\"sesskey\" value=\"$USER->sesskey\" />" .
        " <input type=\"submit\" value=\"$strmovefilestohere\" />" . "</div>" . "</form>";
    }
    echo "</td>";
    if ($repo->can_manage_files()) {
        echo "<td align=\"right\">" . "<form action=\"index.php\" method=\"get\">" . "<div>" .
        " <input type=\"hidden\" name=\"repoid\" value=\"" . $repoid . "\" />" .
        $form_params . " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />" .
        " <input type=\"hidden\" name=\"action\" value=\"makedir\" />" .
        " <input type=\"submit\" value=\"$strmakeafolder\" />" . "</div>" .
        "</form>" . "</td>" . "<td align=\"right\">" . "<form action=\"index.php\" method=\"get\">" .
        "<fieldset class=\"invisiblefieldset\">" .
        " <input type=\"button\" value=\"$strselectall\" onclick=\"checkall();\" />" .
        " <input type=\"button\" value=\"$strselectnone\" onclick=\"checknone();\" />" .
        "</fieldset>" . "</form>" . "</td>" . "<td align=\"right\">" .
        "<form action=\"index.php\" method=\"get\">" . "<div>" .
        " <input type=\"hidden\" name=\"repoid\" value=\"" . $repoid . "\" />" .
        $form_params . " <input type=\"hidden\" name=\"wdir\" value=\"$wdir\" />" .
        " <input type=\"hidden\" name=\"action\" value=\"upload\" />" .
        " <input type=\"submit\" value=\"$struploadafile\" />" . "</div>" . "</form>" . "</td>";
    } else {
        echo "<td align=\"right\" colspan=\"3\">" . "</td>";
    }
    echo "</tr>" . "</table>";
}

/**
 * Checks to see if the file is a type which can be edited
 *
 */
function is_editable_type($file) {
    $file = strtolower($file);
    if (strpos($file, ".html") > 0 || strpos($file, ".htm") > 0 || strpos($file, ".txt") > 0) {
        return true;
    }
    return false;
}

/**
 * Checks to see if this is a zip file
 *
 */
function is_zipfile($file) {
    $file = strtolower($file);
    if (strpos($file, ".zip") > 0) {
        return true;
    }

return false;
}

/**
 * This function prints out a number of upload form elements.
 *
 * @param int $numfiles The number of elements required (optional, defaults to 1)
 * @param array $names Array of element names to use (optional, defaults to FILE_n)
 * @param array $descriptions Array of strings to be printed out before each file bit.
 * @param boolean $uselabels -Whether to output text fields for file descriptions or not (optional, defaults to false)
 * @param array $labelnames Array of element names to use for labels (optional, defaults to LABEL_n)
 * @param int $coursebytes $coursebytes and $maxbytes are used to calculate upload max size ( using {@link get_max_upload_file_size})
 * @param int $modbytes $coursebytes and $maxbytes are used to calculate upload max size ( using {@link get_max_upload_file_size})
 * @param boolean $return -Whether to return the string (defaults to false - string is echoed)
 * @return string Form returned as string if $return is true
 */

function searchabledisplay($wdir) {
    global $repo, $form_params, $repoid, $data_params, $USER;
    $repo->search("trains");
    $allfiles = $repo->get_directory_listing('');
    $filelist = $allfiles->filelist;
    $strchoose = get_string("choose");
    echo "<form action=\"index.php\" method=\"get\">" . "<div style=\"text-align:center\">" .
    " <input type=\"hidden\" name=\"repoid\" value=\"" . $repoid . "\" />" . $form_params .
    " <input type=\"text\" name=\"" . $repo->is_searchable() . "\" value=\"\" />" .
    " <input type=\"submit\" value=\"" . get_string("search") . "\" />" . "</div>" . "</form><br />";
    echo "<table><tr>\n";
    $loop = 0;
    foreach ($filelist as $file) {
        echo "<td style=\"width:" . $file->thumbnailw . "px;vertical-align:top;text-align:center;\">" .
        "<img src=\"" . $file->thumbnail . "\" width=\"" . $file->thumbnailw . "\" height=\"" .
        $file->thumbnailh . "\" alt=\"\" />\n" . "<br />" . $file->name . "\n";

if ($data_params->choose) {
            echo "<form action=\"choosefile.php\" method=\"post\"><div>\n" .
            "<input type=\"hidden\" name=\"fileurl\" value=\"" . $file->filepath . "\" />\n" .
            "<input type=\"hidden\" name=\"action\" value=\"confirm\" />\n" .
            "<input type=\"hidden\" name=\"draftpath\" value=\"" . $data_params['draftpath'] . "\" />\n" .
            "<input type=\"hidden\" name=\"savepath\" value=\"" . $data_params['savepath'] . "\" />\n" .
            "<input type=\"hidden\" name=\"filename\" value=\"" . $file->filesafe . "\" />\n" .
            "<input type=\"hidden\" name=\"sesskey\" value=\"" . $USER->sesskey . "\" />\n" .
            "<input type=\"hidden\" name=\"repo_id\" value=\"" . $repoid . "\" />\n" .
            "<input type=\"hidden\" name=\"maxbytes\" value=\"-1\" />\n" .
            "<input type=\"hidden\" name=\"course\" value=\"" . $data_params['id'] . "\" />\n" .
            "<input type=\"hidden\" name=\"ctx_id\" value=\"" . $data_params['contextid'] . "\" />\n" .
            "<input type=\"hidden\" name=\"env\" value=\"filemanager\" />\n" .
            "<input type=\"hidden\" name=\"itemid\" value=\"" . $data_params['itemid'] . "\" />\n" .
            "<input type=\"hidden\" name=\"client_id\" value=\"" . $data_params['client_id'] . "\" />\n" .
            "<input type=\"submit\" value=\"" . $strchoose . "\" />\n" . "</div></form>\n";
        }
        echo "</td>\n";
        $loop++;
        if ($loop > 3) {
            echo "</tr><tr>";
            $loop = 0;
        }
    }
    echo "</tr></table>";
}

/**
 * Prints a basic textarea field.
 *
 * When using this function, you should
 *
 * @global object
 * @param int $rows Number of rows to display  (minimum of 10 when $height is non-null)
 * @param int $cols Number of columns to display (minimum of 65 when $width is non-null)
 * @param null $width (Deprecated) Width of the element; if a value is passed, the minimum value for $cols will be 65. Value is otherwise ignored.
 * @param null $height (Deprecated) Height of the element; if a value is passe, the minimum value for $rows will be 10. Value is otherwise ignored.
 * @param string $name Name to use for the textarea element.
 * @param string $value Initial content to display in the textarea.
 * @param int $obsolete deprecated
 * @param bool $return If false, will output string. If true, will return string value.
 * @param string $id CSS ID to add to the textarea element.
 * @return string|void depending on the value of $return
 */

function block_repo_filemanager_print_textarea($rows, $cols, $width, $height, $name, $value='', $obsolete=0, $return=false, $id='') {
    /// $width and height are legacy fields and no longer used as pixels like they used to be.
    /// However, you can set them to zero to override the mincols and minrows values below.

// Disabling because there is not yet a viable $OUTPUT option for cases when mforms can't be used
    // debugging('print_textarea() has been deprecated. You should be using mforms and the editor element.');

global $CFG;

$mincols = 65;
    $minrows = 10;
    $str = '';

if ($id === '') {
        $id = 'edit-'.$name;
    }

if ($height && ($rows < $minrows)) {
        $rows = $minrows;
    }
    if ($width && ($cols < $mincols)) {
        $cols = $mincols;
    }

editors_head_setup();
    $editor = editors_get_preferred_editor(FORMAT_HTML);
    // Need for Moodle 2.8 and lower compat
    if (method_exists($editor, "set_text")) {
        $editor->set_text($value);
    }
    $editor->use_editor($id, array('legacy'=>true));

$str .= "\n".'<textarea class="form-textarea" id="'. $id .'" name="'. $name .'" rows="'. $rows .'" cols="'. $cols .'" spellcheck="true">'."\n";
    $str .= htmlspecialchars($value); // needed for editing of cleaned text!
    $str .= '</textarea>'."\n";

if ($return) {
        return $str;
    }
    echo $str;
}