New option to set Wi-Fi network password

README.md

@@ -10,6 +10,7 @@ The code is available at [https://github.com/martignoni/moodlebox](https://githu
 
 ### Release notes
 
+* 2016-09-18, version 1.4: new option enabling to change the MoodleBox Wi-Fi network password
 * 2016-09-10, version 1.3: new option enabling to change the MoodleBox password
 * 2016-08-09, version 1.2: changed to admin tool plugin (from local plugin)
 * 2016-08-06, version 1.1: added display of free space on SD card
@@ -27,6 +28,7 @@ The MoodleBox plugin must be installed in the Moodle tree of the MoodleBox, in t
 * Info about the MoodleBox (kernel version, Raspbian version, free space on SD card, CPU load, CPU temperature, CPU frequency, uptime, DHCP clients).
 * GUI to set the MoodleBox date and time.
 * GUI to set the MoodleBox password.
+* GUI to set the MoodleBox Wi-Fi network password.
 * GUI to restart and shutdown the MoodleBox.
 
 ## License

bin/setwifipassword.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+# This script is part of MoodleBox plugin for moodlebox
+# Copyright (C) 2016 onwards Nicolas Martignoni
+#
+# This script 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.
+#
+# This script  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 this script.  If not, see <http://www.gnu.org/licenses/>.
+#
+# This script MUST be run as root
+[[ $EUID -ne 0 ]] && { echo "This script must be run as root"; exit 1; }
+#
+# Configuration
+# get directory of this script
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+# path of file containing the new password (plain text)
+FILE=${DIR%/*}/.wifipassword
+# newpassword
+NEWPASSWORD="$(head -n 1 $FILE | sed 's/ *$//g' | sed 's/^ *//g')"
+#
+# Script
+# set new password
+sed -i "/wpa_passphrase/c\wpa_passphrase=$NEWPASSWORD" /etc/hostapd/hostapd.conf
+# reload hostapd service
+service hostapd reload
+# the end

index.php

@@ -78,6 +78,9 @@
     $sdcardfreespace = disk_free_space('/');
     $moodleboxversion = $plugin->release . ' (' . $plugin->version . ')';
     $currentwifipassword = exec('grep "wpa_passphrase" /etc/hostapd/hostapd.conf  | cut -d= -f2');
+    if ( $currentwifipassword === '' ) {
+        $currentwifipassword = get_string('nopassworddefined', 'tool_moodlebox');
+    }
 
     class datetimeset_form extends moodleform {
         function definition() {
@@ -122,6 +125,26 @@ function validation($data, $files) {
         }
     }
 
+    class wifipassword_form extends moodleform {
+
+        function definition() {
+            global $currentwifipassword;
+            $mform = $this->_form;
+
+            $mform->addElement('static', 'currentwifipassword', get_string('currentwifipassword', 'tool_moodlebox'), $currentwifipassword);
+            $mform->addElement('text', 'wifipassword', get_string('newwifipassword', 'tool_moodlebox'));
+            $mform->addRule('wifipassword', get_string('wifipassworderror', 'tool_moodlebox'), 'rangelength', array(8, 63), 'client');
+            $mform->setType('wifipassword', PARAM_RAW);
+            if ( $currentwifipassword === get_string('nopassworddefined', 'tool_moodlebox') ) {
+                $currentwifipassword = '';
+            }
+            $mform->setDefault('wifipassword', $currentwifipassword);
+
+            $this->add_action_buttons(false, get_string('changewifipassword', 'tool_moodlebox'));
+        }
+
+    }
+
     class restartshutdown_form extends moodleform {
         function definition() {
             $mform = $this->_form;
@@ -205,6 +228,23 @@ function definition() {
 
     echo $OUTPUT->box_end();
 
+    // Wi-Fi password section
+    echo $OUTPUT->heading(get_string('wifipasswordsetting', 'tool_moodlebox'));
+    echo $OUTPUT->box_start('generalbox');
+
+    $wifipasswordform = new wifipassword_form();
+    $wifipasswordform->display();
+
+    if ($data = $wifipasswordform->get_data()) {
+        if (!empty($data->submitbutton)) {
+            // print_r($data);
+            file_put_contents(".wifipassword", $data->wifipassword);
+            \core\notification::warning(get_string('wifipasswordmessage', 'tool_moodlebox'));
+        }
+    }
+
+    echo $OUTPUT->box_end();
+
     // Restart-shutdown section
     echo $OUTPUT->heading(get_string('restartstop', 'tool_moodlebox'));
     echo $OUTPUT->box_start('generalbox');

lang/en/tool_moodlebox.php

@@ -26,6 +26,7 @@
 $string['changepassworderror'] = 'The MoodleBox password was not changed. The passwords given don\'t match.';
 $string['changepasswordmessage'] = 'The main password of the MoodleBox (Unix account) was changed.<br /><br />Warning! The password of the Admin user of the Moodle <b>was not changed</b>. To change it, please use the preferences page of this user.';
 $string['changepasswordsetting'] = 'MoodleBox password change';
+$string['changewifipassword'] = 'Change Wi-Fi password';
 $string['cpufrequency'] = 'CPU frequency';
 $string['cpuload'] = 'CPU load';
 $string['cputemperature'] = 'CPU temperature';
@@ -40,6 +41,8 @@
 $string['information'] = 'Information';
 $string['kernelversion'] = 'Kernel version';
 $string['moodleboxpluginversion'] = 'MoodleBox plugin version';
+$string['newwifipassword'] = 'New Wi-Fi password';
+$string['nopassworddefined'] = 'No Wi-Fi password defined';
 $string['parameter'] = 'Parameter';
 $string['pluginname'] = 'MoodleBox';
 $string['raspberryhardware'] = 'Raspberry Pi model';
@@ -56,3 +59,6 @@
 $string['systeminfo'] = 'System information';
 $string['unsupportedhardware'] = 'Unsupported server hardware detected ! This plugin does only work on Raspberry Pi';
 $string['uptime'] = 'System uptime';
+$string['wifipassworderror'] = 'The Wi-Fi network password must have between 8 and 63 characters, or be empty.';
+$string['wifipasswordmessage'] = 'The Wi-Fi network password was changed. Don\'t forget to communicate it to your students.';
+$string['wifipasswordsetting'] = 'Wi-Fi network password change';

lang/fr/tool_moodlebox.php

@@ -26,6 +26,7 @@
 $string['changepassworderror'] = 'Le mot de passe de la MoodleBox n\'a pas été modifié. Les mots de passe donnés ne concordent pas.';
 $string['changepasswordmessage'] = 'Le mot de passe principal de la Moodlebox (compte Unix), de la base de données et de phpMyAdmin ont été modifiés.<br /><br />Attention ! Le mot de passe de l\'utilisateur Admin du Moodle <b>n\'a pas été modifié</b>. Pour le modifier, veuillez passer par la page des préférences de cet utilisateur.';
 $string['changepasswordsetting'] = 'Changement du mot de passe de la MoodleBox';
+$string['changewifipassword'] = 'Changer le mot de passe Wi-Fi';
 $string['cpufrequency'] = 'Fréquence du processeur';
 $string['cpuload'] = 'Charge du processeur';
 $string['cputemperature'] = 'Température du processeur';
@@ -40,6 +41,8 @@
 $string['information'] = 'Information';
 $string['kernelversion'] = 'Version du noyau';
 $string['moodleboxpluginversion'] = 'Version du plugin MoodleBox';
+$string['newwifipassword'] = 'Nouveau mot de passe Wi-Fi';
+$string['nopassworddefined'] = 'Pas de mot de passe Wi-Fi défini';
 $string['parameter'] = 'Paramètre';
 $string['pluginname'] = 'MoodleBox';
 $string['raspberryhardware'] = 'Modèle Raspberry Pi';
@@ -56,3 +59,6 @@
 $string['systeminfo'] = 'Informations système';
 $string['unsupportedhardware'] = 'Matériel serveur non compatible détecté ! Ce plugin ne fonctionne que sur Raspberry Pi';
 $string['uptime'] = 'Durée de fonctionnement du système';
+$string['wifipassworderror'] = 'Le mot de passe du réseau Wi-Fi doit comporter entre 8 et 63 caratères, ou alors être vide.';
+$string['wifipasswordmessage'] = 'Le mot de passe du réseau Wi-Fi a été modifié. N\'oubliez pas de le communiquer à vos étudiants.';
+$string['wifipasswordsetting'] = 'Changement du mot de passe du réseau Wi-Fi';

version.php

@@ -25,8 +25,8 @@
 
 defined('MOODLE_INTERNAL') || die;
 
-$plugin->version  = 2016091000;
-$plugin->release = '1.3';
+$plugin->version  = 2016181000;
+$plugin->release = '1.4';
 $plugin->requires = 2015051103;
 $plugin->maturity = MATURITY_STABLE;
 $plugin->component = 'tool_moodlebox';