From cdbd37126dfb38a48d7b542a7f88cccaaf459024 Mon Sep 17 00:00:00 2001
From: Petr Skoda <commits@skodak.org>
Date: Sun, 10 Jul 2011 11:03:02 +0200
Subject: [PATCH] MDL-28279 remove flash client version blocking

Everybody is responsible for upgrades of Flash, there is no excuse any more.
---
 admin/settings/security.php      |   1 -
 lang/en/admin.php                |   2 --
 lang/en/moodle.php               |   4 ----
 lib/flashdetect/flashdetect.js   |  30 --------------------------
 lib/flashdetect/flashupgrade.fla | Bin 47104 -> 0 bytes
 lib/flashdetect/flashupgrade.swf | Bin 3621 -> 0 bytes
 lib/flashdetect/message.php      |  30 --------------------------
 lib/moodlelib.php                |   1 -
 lib/outputrenderers.php          |   6 ------
 lib/outputrequirementslib.php    |   5 -----
 login/environment.php            |  35 -------------------------------
 pluginfile.php                   |  15 -------------
 12 files changed, 129 deletions(-)
 delete mode 100644 lib/flashdetect/flashdetect.js
 delete mode 100644 lib/flashdetect/flashupgrade.fla
 delete mode 100644 lib/flashdetect/flashupgrade.swf
 delete mode 100644 lib/flashdetect/message.php
 delete mode 100644 login/environment.php

diff --git a/admin/settings/security.php b/admin/settings/security.php
index ca95a478187ae..d9541b9f5b69a 100644
--- a/admin/settings/security.php
+++ b/admin/settings/security.php
@@ -81,7 +81,6 @@
     $temp->add(new admin_setting_configcheckbox('loginhttps', get_string('loginhttps', 'admin'), get_string('configloginhttps', 'admin'), 0));
     $temp->add(new admin_setting_configcheckbox('cookiesecure', get_string('cookiesecure', 'admin'), get_string('configcookiesecure', 'admin'), 0));
     $temp->add(new admin_setting_configcheckbox('cookiehttponly', get_string('cookiehttponly', 'admin'), get_string('configcookiehttponly', 'admin'), 0));
-    $temp->add(new admin_setting_configtext('excludeoldflashclients', get_string('excludeoldflashclients', 'admin'), get_string('configexcludeoldflashclients', 'admin'), '10.0.12', PARAM_TEXT));
     $ADMIN->add('security', $temp);
 
 
diff --git a/lang/en/admin.php b/lang/en/admin.php
index e967be0f49620..a6e165ffa242d 100644
--- a/lang/en/admin.php
+++ b/lang/en/admin.php
@@ -207,7 +207,6 @@
 $string['configenablewebservices'] = 'Web services enable other systems to log in to this Moodle and perform operations.  For extra security this feature should be disabled unless you are really using it.';
 $string['configenablewsdocumentation'] = 'Enable auto-generation of web services documentation. A user can access to his own documentation on his security keys page {$a}. It displays the documentation for the enabled protocols only.';
 $string['configerrorlevel'] = 'Choose the amount of PHP warnings that you want to be displayed.  Normal is usually the best choice.';
-$string['configexcludeoldflashclients'] = 'Some versions of the Adobe Flash plugin are known to be vulnerable to attacks from malicious Flash content.  You can specify a minimum supported version here, and Moodle will not show Flash files to users with lower versions. Instead they will see an alternate Flash file telling them how to upgrade. Leave this empty to disable all checks.';
 $string['configextendedusernamechars'] = 'Enable this setting to allow students to use any characters in their usernames (note this does not affect their actual names).  The default is "false" which restricts usernames to be alphanumeric lowercase characters, underscore (_), hyphen (-), period (.) or at symbol (@).';
 $string['configextramemorylimit'] = 'Some scripts like search, backup/restore or cron require more memory. Set higher values for large sites.';
 $string['configextrauserselectorfields'] = 'Select which fields are searched and displayed, in addition to full names, when selecting users, for example when assigning roles or when adding users to a group. For security reasons, it is recommended that the username field is NOT selected.';
@@ -514,7 +513,6 @@
 $string['errorwithsettings'] = 'Some settings were not changed due to an error.';
 $string['everyonewhocan'] = 'Everyone who can \'{$a}\'';
 $string['exceptions'] = 'exceptions';
-$string['excludeoldflashclients'] = 'Required Flash player version';
 $string['experimental'] = 'Experimental';
 $string['experimentalsettings'] = 'Experimental settings';
 $string['extendedusernamechars'] = 'Allow extended characters in usernames';
diff --git a/lang/en/moodle.php b/lang/en/moodle.php
index f97e4bd8b0489..50f5ebccd285f 100644
--- a/lang/en/moodle.php
+++ b/lang/en/moodle.php
@@ -663,10 +663,6 @@
 $string['firstaccess'] = 'First access';
 $string['firstname'] = 'First name';
 $string['firsttime'] = 'Is this your first time here?';
-$string['flashlinkmessage'] = 'Please upgrade your Flash player now:';
-$string['flashupgrademessage'] = 'The Flash plugin is required to play this content, but the version you have is too old.
-
-  You may need to log out and log in back after upgrade.';
 $string['folder'] = 'Folder';
 $string['folderclosed'] = 'Closed folder';
 $string['folderopened'] = 'Opened folder';
diff --git a/lib/flashdetect/flashdetect.js b/lib/flashdetect/flashdetect.js
deleted file mode 100644
index ed9f7c36c9183..0000000000000
--- a/lib/flashdetect/flashdetect.js
+++ /dev/null
@@ -1,30 +0,0 @@
-///////////////////////////////////////////////////////////////////////////
-//                                                                       //
-// This file is part of Moodle - http://moodle.org/                      //
-// Moodle - Modular Object-Oriented Dynamic Learning Environment         //
-//                                                                       //
-// 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/>.       //
-//                                                                       //
-///////////////////////////////////////////////////////////////////////////
-
-/*
- * Library for flash player version detection
- */
-
-M.core_flashdetect = {};
-
-M.core_flashdetect.init = function(Y) {
-    var flashversion = swfobject.getFlashPlayerVersion();
-	Y.io(M.cfg.wwwroot+'/login/environment.php?sesskey='+M.cfg.sesskey+'&flashversion='+flashversion.major+'.'+flashversion.minor+'.'+flashversion.release, {method: "POST"});
-};
\ No newline at end of file
diff --git a/lib/flashdetect/flashupgrade.fla b/lib/flashdetect/flashupgrade.fla
deleted file mode 100644
index 9ca926447c146df84ffd81694402869ef23dc368..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

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diff --git a/lib/flashdetect/flashupgrade.swf b/lib/flashdetect/flashupgrade.swf
deleted file mode 100644
index c56478a624fa8b0e2223dd8f55d02dba60cec3ff..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

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diff --git a/lib/flashdetect/message.php b/lib/flashdetect/message.php
deleted file mode 100644
index 54f3701a5f0dd..0000000000000
--- a/lib/flashdetect/message.php
+++ /dev/null
@@ -1,30 +0,0 @@
-<?php
-///////////////////////////////////////////////////////////////////////////
-//                                                                       //
-// This file is part of Moodle - http://moodle.org/                      //
-// Moodle - Modular Object-Oriented Dynamic Learning Environment         //
-//                                                                       //
-// 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/>.       //
-//                                                                       //
-///////////////////////////////////////////////////////////////////////////
-
-/*
- * This file displays some variable for the flashupgrade.swf
- * the variable contain the translated message to displayed into the flashupgrade.swf ("Please update you flash ...")
- * NOTE: flash can load variable from html (variable1=value&variable2=value2)
- */
-require('../../config.php');
-require_login();
-echo 'alertmessage='.get_string('flashupgrademessage').'&linkmessage='.get_string('flashlinkmessage');
-?>
diff --git a/lib/moodlelib.php b/lib/moodlelib.php
index 4eca02dc64681..f65e511d15335 100644
--- a/lib/moodlelib.php
+++ b/lib/moodlelib.php
@@ -7035,7 +7035,6 @@ function get_core_subsystems() {
             'filepicker'  => NULL,
             'files'       => 'files',
             'filters'     => NULL,
-            'flashdetect' => NULL,
             'fonts'       => NULL,
             'form'        => 'lib/form',
             'grades'      => 'grade',
diff --git a/lib/outputrenderers.php b/lib/outputrenderers.php
index 1f00572bdc6d7..be7eba7208362 100644
--- a/lib/outputrenderers.php
+++ b/lib/outputrenderers.php
@@ -313,12 +313,6 @@ public function standard_head_html() {
         $jsurl = $this->page->theme->javascript_url(false);
         $this->page->requires->js($jsurl);
 
-        // Perform a browser environment check for the flash version.  Should only run once per login session.
-        if (!NO_MOODLE_COOKIES && isloggedin() && !empty($CFG->excludeoldflashclients) && empty($SESSION->flashversion)) {
-            $this->page->requires->js('/lib/swfobject/swfobject.js');
-            $this->page->requires->js_init_call('M.core_flashdetect.init');
-        }
-
         // Get any HTML from the page_requirements_manager.
         $output .= $this->page->requires->get_head_code($this->page, $this);
 
diff --git a/lib/outputrequirementslib.php b/lib/outputrequirementslib.php
index 336f36e6a8106..bdd635fa7a18c 100644
--- a/lib/outputrequirementslib.php
+++ b/lib/outputrequirementslib.php
@@ -448,11 +448,6 @@ protected function find_module($component) {
                                     'requires' => array('base', 'node', 'event', 'node-event-simulate'),
                                     'fullpath' => '/message/module.js');
                     break;
-                case 'core_flashdetect':
-                    $module = array('name'     => 'core_flashdetect',
-                                    'fullpath' => '/lib/flashdetect/flashdetect.js',
-                                    'requires' => array('io'));
-                    break;
                 case 'core_group':
                     $module = array('name'     => 'core_group',
                                     'fullpath' => '/group/module.js',
diff --git a/login/environment.php b/login/environment.php
deleted file mode 100644
index 07a0e99cac535..0000000000000
--- a/login/environment.php
+++ /dev/null
@@ -1,35 +0,0 @@
-<?php
-
-// This file is part of Moodle - http://moodle.org/
-//
-// Moodle is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// Moodle is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
-
-/**
- * This script can set environment variables in the current session
- *
- * @package    core
- * @subpackage auth
- * @copyright  2009 onwards Martin Dougiamas  http://dougiamas.com
- * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- */
-
-require('../config.php');
-
-require_sesskey();
-
-if (!empty($SESSION)) {
-    if ($flashversion = optional_param('flashversion', false, PARAM_TEXT)) {   // eg 10.0.32
-        $SESSION->flashversion = $flashversion;
-    }
-}
diff --git a/pluginfile.php b/pluginfile.php
index cc855cc32bfef..e9e83db506bf9 100644
--- a/pluginfile.php
+++ b/pluginfile.php
@@ -56,21 +56,6 @@
 
 $fs = get_file_storage();
 
-// If the file is a Flash file and that the user flash player is outdated return a flash upgrader MDL-20841
-$mimetype = mimeinfo('type', $args[count($args)-1]);
-if (!empty($CFG->excludeoldflashclients) && $mimetype == 'application/x-shockwave-flash'&& !empty($SESSION->flashversion)) {
-    $userplayerversion = explode('.', $SESSION->flashversion);
-    $requiredplayerversion = explode('.', $CFG->excludeoldflashclients);
-    if (($userplayerversion[0] <  $requiredplayerversion[0]) ||
-        ($userplayerversion[0] == $requiredplayerversion[0] && $userplayerversion[1] < $requiredplayerversion[1]) ||
-        ($userplayerversion[0] == $requiredplayerversion[0] && $userplayerversion[1] == $requiredplayerversion[1]
-         && $userplayerversion[2] < $requiredplayerversion[2])) {
-        $path = $CFG->dirroot."/lib/flashdetect/flashupgrade.swf";  // Alternate content asking user to upgrade Flash
-        $filename = "flashupgrade.swf";
-        send_file($path, $filename, O, 0, false, false, 'application/x-shockwave-flash'); // Do not cache
-    }
-}
-
 // ========================================================================================================================
 if ($component === 'blog') {
     // Blog file serving