Added premium key option

amd/build/page-studyplan-report.min.js.map

@@ -1 +1 @@
-{"version":3,"file":"page-studyplan-report.min.js","sources":["../src/page-studyplan-report.js"],"sourcesContent":["/*eslint no-var: \"error\" */\n/*eslint no-unused-vars: \"off\" */\n/*eslint linebreak-style: \"off\" */\n/*eslint no-trailing-spaces: \"off\" */\n/*eslint-env es6*/\n// Put this file in path/to/plugin/amd/src\n// You can call it anything you like\n\nimport {call} from 'core/ajax';\nimport notification from 'core/notification';\n\nimport Vue from './vue/vue';\n\nimport Debugger from './util/debugger';\nimport {load_strings} from './util/string-helper';\nimport {ProcessStudyplan} from './studyplan-processor';\nimport {studyplanTiming} from './util/date-helper';\n\nimport TSComponents from './treestudyplan-components';\nimport ModalComponents from './modedit-modal';\nVue.use(ModalComponents);\n\nimport PortalVue from './portal-vue/portal-vue.esm';\nVue.use(PortalVue);\nimport BootstrapVue from './bootstrap-vue/bootstrap-vue';\nVue.use(BootstrapVue);\n\n\nlet debug = new Debugger(\"treestudyplanviewer\");\n\nlet strings = load_strings({\n    studyplan: {\n        studyplan_select_placeholder: 'studyplan_select_placeholder',\n    },\n});\n\n/**\n * Initialize the Page\n * @param {Number} studyplanid The id of the studyplan we need to view \n * @param {Number} period The id of the studyplan we need to view \n */\nexport function init(studyplanid,period) {\n    // Make sure the id's are numeric and integer\n    if (undefined === studyplanid || !Number.isInteger(Number(studyplanid)) ){ \n        studyplanid = 0;\n    } else {\n        studyplanid = Number(studyplanid);\n    } // ensure a numeric value instead of string.\n\n    const app = new Vue({\n        el: '#root',\n        data: {\n\n        },\n        async mounted() {\n            \n        },\n        computed: {\n           \n        },\n        methods: {\n            \n        },\n    });\n}\n"],"names":["studyplanid","period","undefined","Number","isInteger","Vue","el","data","computed","methods","use","ModalComponents","PortalVue","BootstrapVue","Debugger","studyplan","studyplan_select_placeholder"],"mappings":"onBAyCqBA,YAAYC,QAKzBD,iBAHAE,IAAcF,aAAgBG,OAAOC,UAAUD,OAAOH,cAGxCG,OAAOH,aAFP,EAKN,IAAIK,aAAI,CAChBC,GAAI,QACJC,KAAM,qBAMNC,SAAU,GAGVC,QAAS,qXAxCbC,IAAIC,oCAGJD,IAAIE,iCAEJF,IAAIG,uBAGI,IAAIC,kBAAS,wBAEX,8BAAa,CACvBC,UAAW,CACPC,6BAA8B"}
+{"version":3,"file":"page-studyplan-report.min.js","sources":["../src/page-studyplan-report.js"],"sourcesContent":["/*eslint no-var: \"error\" */\n/*eslint no-unused-vars: \"off\" */\n/*eslint linebreak-style: \"off\" */\n/*eslint no-trailing-spaces: \"off\" */\n/*eslint-env es6*/\n\nimport {call} from 'core/ajax';\nimport notification from 'core/notification';\n\nimport Vue from './vue/vue';\n\nimport Debugger from './util/debugger';\nimport {load_strings} from './util/string-helper';\nimport {ProcessStudyplan} from './studyplan-processor';\nimport {studyplanTiming} from './util/date-helper';\n\nimport TSComponents from './treestudyplan-components';\nimport ModalComponents from './modedit-modal';\nVue.use(ModalComponents);\n\nimport PortalVue from './portal-vue/portal-vue.esm';\nVue.use(PortalVue);\nimport BootstrapVue from './bootstrap-vue/bootstrap-vue';\nVue.use(BootstrapVue);\n\n\nlet debug = new Debugger(\"treestudyplanviewer\");\n\nlet strings = load_strings({\n    studyplan: {\n        studyplan_select_placeholder: 'studyplan_select_placeholder',\n    },\n});\n\n/**\n * Initialize the Page\n * @param {Number} studyplanid The id of the studyplan we need to view \n * @param {Number} period The id of the studyplan we need to view \n */\nexport function init(studyplanid,period) {\n    // Make sure the id's are numeric and integer\n    if (undefined === studyplanid || !Number.isInteger(Number(studyplanid)) ){ \n        studyplanid = 0;\n    } else {\n        studyplanid = Number(studyplanid);\n    } // ensure a numeric value instead of string.\n\n    const app = new Vue({\n        el: '#root',\n        data: {\n\n        },\n        async mounted() {\n            \n        },\n        computed: {\n           \n        },\n        methods: {\n            \n        },\n    });\n}\n"],"names":["studyplanid","period","undefined","Number","isInteger","Vue","el","data","computed","methods","use","ModalComponents","PortalVue","BootstrapVue","Debugger","studyplan","studyplan_select_placeholder"],"mappings":"onBAuCqBA,YAAYC,QAKzBD,iBAHAE,IAAcF,aAAgBG,OAAOC,UAAUD,OAAOH,cAGxCG,OAAOH,aAFP,EAKN,IAAIK,aAAI,CAChBC,GAAI,QACJC,KAAM,qBAMNC,SAAU,GAGVC,QAAS,qXAxCbC,IAAIC,oCAGJD,IAAIE,iCAEJF,IAAIG,uBAGI,IAAIC,kBAAS,wBAEX,8BAAa,CACvBC,UAAW,CACPC,6BAA8B"}

amd/build/util/premium.min.js

@@ -0,0 +1,3 @@
+define("local_treestudyplan/util/premium",["exports","core/ajax"],(function(_exports,_ajax){Object.defineProperty(_exports,"__esModule",{value:!0}),_exports.enabled=function(){return!!premiumstatus.enabled};let premiumstatus={enabled:!1,website:"",name:"",expires:""}}));
+
+//# sourceMappingURL=premium.min.js.map

amd/build/util/premium.min.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"premium.min.js","sources":["../../src/util/premium.js"],"sourcesContent":["/*eslint no-var: \"error\" */\n/*eslint no-unused-vars: \"off\" */\n/*eslint linebreak-style: \"off\" */\n/*eslint no-trailing-spaces: \"off\" */\n/*eslint-env es6*/\n\nimport {call} from 'core/ajax';\n\n// Prepare default value.\nlet premiumstatus = {\n    enabled: false,\n    website: \"\",\n    name: \"\",\n    expires: \"\",\n};\n\n/**\n * Check if premium status is enabled.\n * @returns {Object} The map with strings loaded in\n */\nexport function enabled (){\n    return !!premiumstatus.enabled;\n}\n"],"names":["premiumstatus","enabled","website","name","expires"],"mappings":"wLAqBaA,cAAcC,aAZvBD,cAAgB,CAChBC,SAAS,EACTC,QAAS,GACTC,KAAM,GACNC,QAAS"}

amd/src/page-studyplan-report.js

@@ -3,8 +3,6 @@
 /*eslint linebreak-style: "off" */
 /*eslint no-trailing-spaces: "off" */
 /*eslint-env es6*/
-// Put this file in path/to/plugin/amd/src
-// You can call it anything you like
 
 import {call} from 'core/ajax';
 import notification from 'core/notification';

amd/src/util/premium.js

@@ -0,0 +1,23 @@
+/*eslint no-var: "error" */
+/*eslint no-unused-vars: "off" */
+/*eslint linebreak-style: "off" */
+/*eslint no-trailing-spaces: "off" */
+/*eslint-env es6*/
+
+import {call} from 'core/ajax';
+
+// Prepare default value.
+let premiumstatus = {
+    enabled: false,
+    website: "",
+    name: "",
+    expires: "",
+};
+
+/**
+ * Check if premium status is enabled.
+ * @returns {Object} The map with strings loaded in
+ */
+export function enabled (){
+    return !!premiumstatus.enabled;
+}

classes/premium.php

@@ -0,0 +1,345 @@
+<?php
+// This file is part of the Studyplan plugin for Moodle
+//
+// 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 <https://www.gnu.org/licenses/>.
+/**
+ * Determine premium status
+ * @package    local_treestudyplan
+ * @copyright  2023 P.M. Kuipers
+ * @license    https://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+
+namespace local_treestudyplan;
+defined('MOODLE_INTERNAL') || die();
+
+require_once($CFG->libdir.'/externallib.php');
+
+use DateTime;
+use moodle_url;
+use stdClass;
+
+
+/**
+ * Handle badge information in the same style as the other classes
+ */
+class premium extends \external_api {
+
+    private static $premiumcrt = "-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----";
+
+    private static $cachedpremiumstatus = null;
+
+    private static function decrypt($encrypted) {
+        // Get the public key.
+        $key = \openssl_get_publickey(self::$premiumcrt);
+        if ($key === false ){
+            throw new \ValueError("Error parsing public key data)");
+        }
+        // Determine the key size.
+        $keysize = \openssl_pkey_get_details($key)["bits"];
+        // 
+        $blocksize = ($keysize / 8); // Bits / 8. Whether padded or not.
+    
+        // Decode data in 
+        $b64 = \base64_decode($encrypted);
+        if ($b64 === false) {
+            throw new \ValueError("Error in base64 decoding");
+        }
+
+        $data = \str_split($b64,$blocksize);
+        $decrypted = "";
+        $i = 0;
+        foreach($data as $chunk) {
+            if (\openssl_public_decrypt($chunk,$dchunk,$key, \OPENSSL_PKCS1_PADDING)) {
+                $decrypted .= $dchunk;
+            } else {
+                throw new \ValueError("Error decrypting chunk $i ({$blocksize} bytes)");
+            }
+            $i++;
+        }
+
+        // Deprecated in PHP 8.0 and up, but included to be compatible with 7.4.
+        // Wrap in a try/catch in case the function is removed in a later version.
+        try {
+            \openssl_pkey_free($key);
+        } catch (\Exception $x) {}
+
+        return $decrypted;
+    }
+    
+    private static function trim_headers($data) {
+        // Headers are repeated in this function for easier testing and copy-pasting into other projects.
+        $START_HEADER   = "----- BEGIN ACTIVATION KEY -----";
+        $END_HEADER     = "----- END ACTIVATION KEY -----";
+    
+        $parts = preg_split("/\r?\n/",\trim($data));
+        if (count($parts) > 2) {
+            $start = -1;
+            $end = -1;
+            for($i = 0; $i < count($parts); $i++) {
+                if ( $parts[$i] == $START_HEADER ) {
+                    $start = $i+1;
+                }
+                if ($start > 0 && $parts[$i] == $END_HEADER) {
+                    $end = $i;
+                }
+            }
+            if ($start < 0 || $end < 0 || $end - $start <= 0) {
+                throw new \ValueError("Invalid activation key wrappers");
+            } else {
+                $keyslice = array_slice($parts, $start, $end - $start);
+                return implode("\n",$keyslice);
+            }
+        } else {
+            throw new \ValueError("Invalid activation key");
+        }
+    }
+
+
+    public static function enabled() {
+        $status = self::premiumStatus();
+        return $status->enabled;
+    }
+
+    protected static function premiumStatus() {
+        if (!isset(self::$cachedpremiumstatus)) {
+            // Initialize default object.
+            $o = new \stdClass;
+            $o->enabled = false;
+            $o->intent = "";
+            $o->name = "";
+            $o->website = "";
+            $o->expires = "";
+            $o->expired = false;
+            $o->issued = "";
+            $o->message = \get_string("premium:notregistered","local_treestudyplan");
+
+            $activationkey = \get_config("local_treestudyplan","premium_key");
+            if (strlen($activationkey) > 0) {
+                $activationkey;
+                
+                try {
+                    $keydata = self::trim_headers($activationkey);
+                    $json = self::decrypt($keydata);
+                    $decoded = \json_decode($json,false);
+
+                    if (is_object($decoded)) {
+
+                        $keys = ["intent","name","website","expires","issued"];
+                        foreach ( $keys as  $k) {
+                            if (isset($decoded->$k)) {
+                                $o->$k = $decoded->$k;
+                            }
+                        }
+
+                        // Convert dates to user dates
+                        $now = new \DateTime();
+                        $issuedate = new \DateTime($o->issued);
+                        $expirydate = new \DateTime(); // Default to now
+                        if ($o->expires == 'never') {
+                            // If expiry date == never
+                            $expirydate->add(new \DateInterval("P1Y"));
+                        } else {
+                            try {
+                                $expirydate = new \DateTime($o->expires);
+                            } catch (\Exception $x) {}
+                        }
+                        if ($o->intent == 'treestudyplan' 
+                            && !empty($o->issued)
+                            && self::website_match($o->website)
+                            ) {
+                            if ($expirydate > $now ) {
+                                $o->enabled = true;
+                                $o->expired = false;
+                            } else {
+                                $o->expired = true;
+                                $o->enabled = false;
+                            }
+                            // Format dates localized.
+                            $o->issued = \userdate($issuedate->getTimestamp(),\get_string('strftimedate','langconfig'));
+                            if ($o->expires == "never") {
+                                $o->expires = \get_string("premium:never",'local_treestudyplan');
+                            } else {
+                                $o->expires = \userdate($expirydate->getTimestamp(),\get_string('strftimedate','langconfig'));
+                            }
+                        } 
+                    }
+                } catch (\ValueError $x) {
+                    $o->status = \get_string("premium:invalidactivationcontent","local_treestudyplan");
+                }
+
+            }
+            self::$cachedpremiumstatus = $o;
+
+        }
+        return self::$cachedpremiumstatus;
+    }
+
+    private static function website_match($key) {
+        global $CFG;
+        $site = $CFG->wwwroot;
+        // Add double slashes to key and site if no scheme is set.
+        // Basically: if no double slashes present before any dots,shashes or @s.
+        if(!preg_match_all('#^[^./@]*?//#',$key )) {
+            $key = "//".$key;
+        }
+        if(!preg_match_all('#^[^./@]*?//#',$site)) {
+            $site = "//".$site;
+        }
+        // Use parse_url() to split path and host.
+        $keyurl = (object)\parse_url($key);
+        $siteurl = (object)\parse_url($site);
+
+        // No match if host is empty on key or site
+        if (empty($keyurl->host) || empty($siteurl->host)) {
+            if(empty($keyurl->host)){
+                print "\e[91mError: no host in keyurl '{$key}'\n";
+                print_r($keyurl);
+                print "\e[0m";
+            }
+            if(empty($siteurl->host)){
+                print "\e[91mError: no host in siteurl '{$site}'\n";
+                print_r($siteurl);
+                print "\e[0m";
+            }
+            return false;
+        }
+
+        // First match the host part.
+        $keyparts = array_reverse(explode(".",$keyurl->host));
+        $siteparts = array_reverse(explode(".",$siteurl->host));
+
+        // Trim starting www from both parts, since site.domain and www.site.domain should be treated as the same.
+        if (($x = array_pop($keyparts)) != "www") {array_push($keyparts,$x);}
+        if (($x = array_pop($siteparts)) != "www") {array_push($siteparts,$x);}
+
+        for ($i = 0; $i < count($keyparts); $i++) {
+            // No match if the site does not have a part, but the key does. Unless the key part is *
+            if (!isset($siteparts[$i]) ) {
+                if($keyparts[$i] != "*") {
+                    return false;
+                } else {
+                    $i++; //increment $i by one before break, to make sure the comparison following this loop holds.
+                    break; // Stop comparison. Host part matches.
+                }
+            }
+
+            // Now do a proper case insensitive check for matching.
+            // Uses fnmatch to easily handle shell type wildcards.
+            if ( ! \fnmatch($keyparts[$i],$siteparts[$i],\FNM_CASEFOLD)) {
+                return false;
+            }
+        }
+        // Fail if the site has a deeper subdomain than the key, unless the deepest key subdomain is *
+        if ($keyparts[$i-1] != '*' && count($siteparts) > ($i)) {
+            return false;
+        }
+
+        // If we made it here then the host part matches. Now check the path.
+        // If path is /*, matches all subpaths including /
+        $keypath = empty($keyurl->path)?"/":$keyurl->path;
+        $sitepath = empty($siteurl->path)?"/":$siteurl->path;
+        
+        // Trim trailing / from both paths before comparison
+        if (strlen($sitepath) > 1) {
+            $sitepath = \rtrim($sitepath,"/");
+        }
+        if (strlen($keypath) > 1) {
+            $keypath = \rtrim($keypath,"/");
+        }
+
+        // Do a case insensitive fnmatch on the site so wildcards are matched too.
+        return \fnmatch($keypath,$sitepath,\FNM_CASEFOLD);
+    }
+
+    public static function get_premiumstatus_parameters() : \external_function_parameters {
+        return new \external_function_parameters([]);
+    }
+
+    /**
+     * Return value description for webservice function get_premiumstatus
+     */
+    public static function get_premiumstatus_returns() : \external_description {
+        return new \external_single_structure([
+            "enabled"   => new \external_value(PARAM_BOOL, 'premium status enabled'),
+            "website"   => new \external_value(PARAM_TEXT, 'premium registration website'),
+            "name"      => new \external_value(PARAM_TEXT, 'premium registration name'),
+            "expires"   => new \external_value(PARAM_TEXT, 'premium registration expiry date'),
+            "expired"   => new \external_value(PARAM_BOOL, 'premium status expired'),
+        ]);
+    }
+
+    /**
+     * Get premium status information for webservice
+     * @return object
+     */
+    public static function get_premiumstatus() {
+        $status = self::premiumStatus();
+        $keys = [
+            "enabled",
+            "website",
+            "name",
+            "expires",
+            "expired",
+        ];
+        
+        $result = [];
+        foreach ( $keys as  $param) {
+            $result[$param] = $status->$param;
+        }
+        return $result;
+    }
+
+    public static function statusdescription() {
+        $status = self::premiumStatus();
+
+        $msg = new \stdClass;
+        $msg->name = $status->name;
+        $msg->issued = $status->issued;
+        $msg->expires = $status->expires;
+        if ($status->website != "*") {
+            $msg->sitestatus = \get_string("premium:onsite",'local_treestudyplan',$status);
+        } else {
+            $msg->sitestatus = "";
+        }
+
+        if($status->enabled) {
+            return \get_string("premium:active",'local_treestudyplan',$msg);
+        } else if ($status->expired) {
+            return \get_string("premium:expired",'local_treestudyplan',$msg);
+        } else {
+            return \get_string("premium:notregistered",'local_treestudyplan',$msg);
+        }
+    }
+
+}

db/services.php

@@ -710,4 +710,16 @@ $functions = [
         'capabilities'  => 'local/treestudyplan:viewuserreports',
         'loginrequired' => true,
     ],
+    /***************************
+     * Premium status functions
+     ***************************/
+    'local_treestudyplan_premiumstatus' => [         // Web service function name.
+        'classname'     => '\local_treestudyplan\premium',  // Class containing the external function.
+        'methodname'    => 'get_premiumstatus',          // External function name.
+        'description'   => 'Retrieve premium status info',
+        'type'          => 'read',                  // Database rights of the web service function (read, write).
+        'ajax'          => true,
+        'capabilities'  => '',
+        'loginrequired' => false,
+    ],
 ];

lang/en/local_treestudyplan.php

@@ -434,3 +434,24 @@ $string["error:cannotviewcategory"] = 'Error: You do not have access to view thi
 $string["error:nostudyplanviewaccess"] = 'Error: You do not have access to view study plans in this category or context: {$a}';
 $string["error:nostudyplaneditaccess"] = 'Error: You do not have access to manage study plans in this category or context: {$a}';
 $string["error:nocategoriesvisible"] = 'Error: You have no viewing permissions in any category. Therefore the course list remains empty.';
+
+$string["premium:never"] = 'never';
+$string["premium:onsite"] = 'for use on site <b>{$a->website}</b>';
+$string["premium:active"] = 'Premium access <b class="text-success">enabled</b>.<br> Registered to <b>{$a->name}</b> {$a->sitestatus}<br>Expires <b>{$a->expires}</b>';
+$string["premium:notregistered"] = 'Premium access <b>disabled</b> ';
+$string["premium:invalidactivationcontent"] = 'Premium activation key not recognized';
+$string["premium:expired"] = 'Premium access <b class="text-danger">expired</b> on <b>{$a->expires}</b><br>Was registered to <b>{$a->name}</b> {$a->sitestatus}';
+$string["settingspage_premium"] = 'Premium registration';
+$string["setting_premium_heading"] = 'Premium features';
+$string["settingdesc_premium_heading"] = 'To access premium features, you need a registration key.
+<br>Premium features include:
+<ul>
+<li>Creating more than 5 studyplans per category</li>
+<li>Overview of grades for all students in a studyplan</li>
+<li>Rows in a studplan which a student can choose to unlock</li>
+</ul>';
+$string["setting_premium_status"] = 'Current premium status';
+$string["setting_premium_key"] = 'Activation key';
+$string["settingdesc_premium_key"] = 'Paste the premium key you received in the box above.';
+
+$string["premiumfeature:morestudyplans"] = 'Creating more than 5 studyplans in a single category is a premium feature.';

lang/nl/local_treestudyplan.php

@@ -434,3 +434,24 @@ $string["error:cannotviewcategory"] = 'Fout: Je hebt geen rechten om deze catego
 $string["error:nostudyplanviewaccess"] = 'Fout: Je hebt geen rechten om studieplannen in deze categorie of context te bekijken: {$a}';
 $string["error:nostudyplaneditaccess"] = 'Fout: Je hebt geen rechten om studieplannen in deze categorie of context te beheren: {$a}';
 $string["error:nocategoriesvisible"] = 'Fout: Je kunt geen cursussen in een categorie bekijken. Daarom blijft de cursuslijst leeg';
+
+$string["premium:never"] = 'nooit';
+$string["premium:onsite"] = 'voor site {$a->website}';
+$string["premium:active"] = 'Premium toegang <b class="text-success">ingeschakeld</b>.<br>Uitgegeven aan <b>{$a->name}</b> {$a->sitestatus}<br>Verloopt op<b>{$a->expires}</b>';
+$string["premium:notregistered"] = 'Premium toegang staat <b>uitgeschakeld</n>';
+$string["premium:invalidactivationcontent"] = 'Premium activeringssleutel niet herkend';
+$string["premium:expired"] = 'Premium toegang is <b class="text-danger">verlopen</b> op <b>{$a->expires}</b><br>Was uitgegeven aan <b>{$a->name}</b> {$a->sitestatus}';
+$string["settingspage_premium"] = 'Premium registration';
+$string["setting_premium_heading"] = 'Premium features';
+$string["settingdesc_premium_heading"] = 'Voor premium toegang is een activeringssleutel vereist.
+<br>Premium toegang bevat onder andere:
+<ul>
+<li>Meer dan 5 studieplannen per categorie aan kunnen maken</li>
+<li>Overzichtsrapport van alle resultaten van studenten in een studieplan</li>
+<li>Leerlijnen die student kan ontsluiten</li>
+</ul>';
+$string["setting_premium_status"] = 'Premium status';
+$string["setting_premium_key"] = 'Activation key';
+$string["settingdesc_premium_key"] = 'Premium activation key';
+
+$string["premiumfeature:morestudyplans"] = 'Meer dan 5 studieplannen in één categorie aanmaken kan alleen met premium toegang.';

settings.php

@@ -25,6 +25,7 @@
 defined('MOODLE_INTERNAL') || die();
 
 use local_treestudyplan\aggregator;
+use local_treestudyplan\premium;
 
 if ($hassiteconfig) {
 
@@ -329,4 +330,36 @@ if ($hassiteconfig) {
         get_string('cfg_help', 'local_treestudyplan', null, true),
         $CFG->wwwroot . '/local/treestudyplan/doc.php/index.htm'));
 
+
+    /**************************************
+     *
+     * Settings page: Cohort sync
+     *
+     *************************************/
+
+     $pagepremium = new admin_settingpage('local_treestudyplan_settings_premium',
+     get_string('settingspage_premium', 'local_treestudyplan', null, true));
+
+    // Description heading.
+    $pagepremium->add(new admin_setting_heading('local_treestudyplan/premium_heading',
+        get_string('setting_premium_heading', 'local_treestudyplan'),
+        get_string('settingdesc_premium_heading', 'local_treestudyplan')
+    ));
+
+    // Description heading.
+    $pagepremium->add(new admin_setting_description('local_treestudyplan/premium_status',
+        get_string('setting_premium_status', 'local_treestudyplan'),
+        premium::statusdescription() . "<br>&nbsp;<br>" // Add empty row at end.
+    ));
+
+    $pagepremium->add(new admin_setting_configtextarea('local_treestudyplan/premium_key',
+        get_string('setting_premium_key', 'local_treestudyplan'),
+        get_string('settingdesc_premium_key', 'local_treestudyplan'),
+        "",
+        PARAM_RAW
+    ));
+
+    // Add settings page2 to the admin settings category.
+    $ADMIN->add('local_treestudyplan', $pagepremium);
+
 }

version.php

@@ -22,7 +22,7 @@
 defined('MOODLE_INTERNAL') || die();
 
 $plugin->component = 'local_treestudyplan';  // Recommended since 2.0.2 (MDL-26035). Required since 3.0 (MDL-48494).
-$plugin->version = 2024020900;  // YYYYMMDDHH (year, month, day, iteration).
+$plugin->version = 2024020901;  // YYYYMMDDHH (year, month, day, iteration).
 $plugin->requires = 2021051700; // YYYYMMDDHH (This is the release version for Moodle 3.11).
 
 $plugin->release = "1.1.0";