Change capability name. Add information into README file #1 . Add PHPDOC. Version 2.3.

README.md

@@ -1,9 +1,54 @@
-[![Build Status](https://travis-ci.org/PlagiarismCheck/moodle-plagiarism_pchkorg.svg?branch=master)](https://travis-ci.org/PlagiarismCheck/moodle-plagiarism_pchkorg)
+Plagiarism Check Plugin. [![Build Status](https://travis-ci.org/PlagiarismCheck/moodle-plagiarism_pchkorg.svg?branch=master)](https://travis-ci.org/PlagiarismCheck/moodle-plagiarism_pchkorg)
-
+---------------------
-
-Plagiarism Check Plugin.
-
 This plugin provide functionality for Plagiarismcheck.org service.
 
 Plagiarismcheck.org is a sophisticated similarity search engine. 
 We advocate for bringing technology into academics to help instructors save time and motivate students write better papers. 
+
+PlagiarismCheck.org has subscription-based pricing model. More information is available here.  
+
+http://plagiarismcheck.org
+
+### With PlagiarismCheck you get:
+
+1) AI Algorithm.
+
+    The algorithm that searches not only for word-to-word match, but also covers: 
+    * word rearrangements 
+    * word substitutions / synonymization
+    * changes from passive to active voice 
+    * poor paraphrasing 
+    * changes of alphabet from Latin to Cyrillic and vice versa 
+    how_we_detect
+
+2) Smart report.
+
+    * user can access all sources where similarity has been detected
+    * similarity found in quotes are highlighted in a different color and can be included/excluded from the total similarity percentage 
+    * similarity found in references are highlighted in a different color and can be included/excluded from the total similarity percentage
+
+3) Search database.
+
+    Depending on the type of subscription, there are several search options available: 
+    * search via all publicly available resources
+    * create a personal archive for your school and search through it
+    * search in closed depositories and libraries
+
+4) Usability.
+    * integration can be easily set up by an administrator of a Moodle account 
+    * integration gives a chance to set up who will have an access to the software 
+    * though the integration both students and instructors will have an access to the similarity reports 
+5) Resubmissions.
+
+    In case an instructor allows to resubmit works, PlagiarismCheck will be able to check all submissions without giving a false positive result 
+
+6) Throughput 
+    * no restrictions on daily usage 
+    * minimum downtime 
+    * no limitations on how soon one can resubmit a work 
+
+7) Excellent customer service
+response to clients' requests within 24 hours
+24/7 admin support.
+
+

classes/plagiarism_pchkorg_api_provider.php

@@ -14,16 +14,32 @@
 // You should have received a copy of the GNU General Public License
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
+/**
+ * @package   plagiarism_pchkorg
+ * @category  plagiarism
+ * @copyright PlagiarismCheck.org, https://plagiarismcheck.org/
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
 defined('MOODLE_INTERNAL') || die();
 
+/**
+ * Class plagiarism_pchkorg_api_provider
+ */
 class plagiarism_pchkorg_api_provider {
 
+    /**
+     * @var
+     */
     private $token;
     /**
      * @var string
      */
     private $endpoint;
 
+    /**
+     * @var
+     */
     private $lasterror;
 
     /**
@@ -40,11 +56,28 @@ class plagiarism_pchkorg_api_provider {
         $this->lasterror = $lasterror;
     }
 
+    /**
+     * plagiarism_pchkorg_api_provider constructor.
+     *
+     * @param $token
+     * @param string $endpoint
+     */
     public function __construct($token, $endpoint = 'https://plagiarismcheck.org') {
         $this->token = $token;
         $this->endpoint = $endpoint;
     }
 
+    /**
+     * @param $authorhash
+     * @param $cousereid
+     * @param $assignmentid
+     * @param $submissionid
+     * @param $attachmentid
+     * @param $content
+     * @param $mime
+     * @param $filename
+     * @return |null
+     */
     public function send_group_text($authorhash, $cousereid, $assignmentid, $submissionid, $attachmentid, $content, $mime,
             $filename) {
 
@@ -88,6 +121,18 @@ class plagiarism_pchkorg_api_provider {
         return $id;
     }
 
+    /**
+     * @param $boundary
+     * @param $authorhash
+     * @param $cousereid
+     * @param $assignmentid
+     * @param $submissionid
+     * @param $attachmentid
+     * @param $content
+     * @param $mime
+     * @param $filename
+     * @return string
+     */
     private function get_body_for_group($boundary,
             $authorhash,
             $cousereid,
@@ -114,6 +159,12 @@ class plagiarism_pchkorg_api_provider {
         return $body;
     }
 
+    /**
+     * @param $content
+     * @param $mime
+     * @param $filename
+     * @return |null
+     */
     public function send_text($content, $mime, $filename) {
         $boundary = sprintf('PLAGCHECKBOUNDARY-%s', uniqid(time()));
 
@@ -147,6 +198,12 @@ class plagiarism_pchkorg_api_provider {
         return $id;
     }
 
+    /**
+     * @param $name
+     * @param $value
+     * @param $boundary
+     * @return string
+     */
     private function get_part($name, $value, $boundary) {
         $eol = "\r\n";
 
@@ -157,6 +214,14 @@ class plagiarism_pchkorg_api_provider {
         return $part;
     }
 
+    /**
+     * @param $name
+     * @param $value
+     * @param $mime
+     * @param $filename
+     * @param $boundary
+     * @return string
+     */
     private function get_file_part($name, $value, $mime, $filename, $boundary) {
         $eol = "\r\n";
 
@@ -169,6 +234,13 @@ class plagiarism_pchkorg_api_provider {
         return $part;
     }
 
+    /**
+     * @param $boundary
+     * @param $content
+     * @param $mime
+     * @param $filename
+     * @return string
+     */
     private function get_body($boundary, $content, $mime, $filename) {
         $eol = "\r\n";
 
@@ -180,14 +252,25 @@ class plagiarism_pchkorg_api_provider {
         return $body;
     }
 
+    /**
+     * @param $email
+     * @return string
+     */
     public function user_email_to_hash($email) {
         return hash('sha256', $this->token . $email);
     }
 
+    /**
+     * @return bool
+     */
     public function is_group_token() {
         return 'G-' === \substr($this->token, 0, 2);
     }
 
+    /**
+     * @param string $email
+     * @return bool
+     */
     public function is_group_member($email = '') {
         if (!$this->is_group_token()) {
             return true;
@@ -213,6 +296,10 @@ class plagiarism_pchkorg_api_provider {
         return false;
     }
 
+    /**
+     * @param $textid
+     * @return |null
+     */
     public function check_text($textid) {
         $curl = new curl();
         $response = $curl->get($this->endpoint . '/api/v1/text/' . $textid, array(), array(
@@ -235,10 +322,17 @@ class plagiarism_pchkorg_api_provider {
         return null;
     }
 
+    /**
+     * @param $id
+     * @return string
+     */
     public function get_report_action($id) {
         return "{$this->endpoint}/lms/public-report/{$id}/";
     }
 
+    /**
+     * @return string
+     */
     public function generate_api_token() {
         global $USER;
 
@@ -249,6 +343,10 @@ class plagiarism_pchkorg_api_provider {
         return $this->token;
     }
 
+    /**
+     * @param $mime
+     * @return bool
+     */
     public function is_supported_mime($mime) {
         return in_array($mime, array(
                 'application/msword',

classes/plagiarism_pchkorg_config_model.php

@@ -14,21 +14,47 @@
 // You should have received a copy of the GNU General Public License
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
+/**
+ * @package   plagiarism_pchkorg
+ * @category  plagiarism
+ * @copyright PlagiarismCheck.org, https://plagiarismcheck.org/
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
 defined('MOODLE_INTERNAL') || die();
 
+/**
+ * Class plagiarism_pchkorg_config_model
+ */
 class plagiarism_pchkorg_config_model {
+    /**
+     * @var
+     */
     private $db;
 
+    /**
+     * plagiarism_pchkorg_config_model constructor.
+     *
+     * @param $DB
+     */
     public function __construct($DB) {
         $this->db = $DB;
     }
 
+    /**
+     * @param $module
+     * @return mixed
+     */
     public function fetch_by_module($module) {
         return $this->db->get_records('plagiarism_pchkorg_config', array(
                 'cm' => $module,
         ));
     }
 
+    /**
+     * @param $module
+     * @return bool
+     */
     public function is_enabled_for_module($module) {
         $configs = $this->fetch_by_module($module);
         $enabled = false;
@@ -45,6 +71,10 @@ class plagiarism_pchkorg_config_model {
         return $enabled;
     }
 
+    /**
+     * @param $name
+     * @param $value
+     */
     public function set_system_config($name, $value) {
         $this->db->delete_records('plagiarism_pchkorg_config', array(
                 'cm' => 0,
@@ -59,6 +89,10 @@ class plagiarism_pchkorg_config_model {
         $this->db->insert_record('plagiarism_pchkorg_config', $record);
     }
 
+    /**
+     * @param $name
+     * @return |null
+     */
     public function get_system_config($name) {
         $records = $this->db->get_records('plagiarism_pchkorg_config', array(
                 'cm' => 0,
@@ -72,6 +106,9 @@ class plagiarism_pchkorg_config_model {
         return null;
     }
 
+    /**
+     * @return array
+     */
     public function get_all_system_config() {
         $records = $this->db->get_records('plagiarism_pchkorg_config', array(
                 'cm' => 0,

classes/plagiarism_pchkorg_file_loader.php

@@ -1,21 +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/>.
-
-defined('MOODLE_INTERNAL') || die();
-
-class plagiarism_pchkorg_file_loader {
-
-}

classes/plagiarism_pchkorg_url_generator.php

@@ -14,9 +14,25 @@
 // You should have received a copy of the GNU General Public License
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
+/**
+ * @package   plagiarism_pchkorg
+ * @category  plagiarism
+ * @copyright PlagiarismCheck.org, https://plagiarismcheck.org/
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
 defined('MOODLE_INTERNAL') || die();
 
+/**
+ * Class plagiarism_pchkorg_url_generator
+ */
 class plagiarism_pchkorg_url_generator {
+    /**
+     * @param $cmid
+     * @param $fileid
+     * @return moodle_url
+     * @throws moodle_exception
+     */
     public function get_check_url($cmid, $fileid) {
         return new moodle_url(sprintf(
                         '/plagiarism/pchkorg/page/report.php?cmid=%s&file=%s',
@@ -26,6 +42,10 @@ class plagiarism_pchkorg_url_generator {
         );
     }
 
+    /**
+     * @return moodle_url
+     * @throws moodle_exception
+     */
     public function get_status_url() {
         return new moodle_url('/plagiarism/pchkorg/page/status.php');
     }

classes/privacy/provider.php

@@ -14,12 +14,24 @@
 // You should have received a copy of the GNU General Public License
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
+/**
+ * @package   plagiarism_pchkorg
+ * @category  plagiarism
+ * @copyright PlagiarismCheck.org, https://plagiarismcheck.org/
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
 namespace plagiarism_pchkorg\privacy;
 
 defined('MOODLE_INTERNAL') || die();
 
 use core_privacy\local\metadata\collection;
 
+/**
+ * Class provider
+ *
+ * @package plagiarism_pchkorg\privacy
+ */
 class provider implements
         \core_privacy\local\metadata\provider,
         \core_privacy\local\request\plugin\provider {
@@ -27,6 +39,10 @@ class provider implements
     // This trait must be included.
     use \core_privacy\local\legacy_polyfill;
 
+    /**
+     * @param collection $collection
+     * @return collection
+     */
     public static function _get_metadata(collection $collection) {
 
         $collection->add_subsystem_link(

db/access.php

@@ -1,32 +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/>.
-
-if (!defined('MOODLE_INTERNAL')) {
-    die('Direct access to this script is forbidden.');
-}
-
-$capabilities = array(
-        'plagiarism/pchkorg:check' => array(
-                'riskbitmask' => RISK_PERSONAL,
-                'captype' => 'write',
-                'contextlevel' => CONTEXT_MODULE,
-                'archetypes' => array(
-                        'editingteacher' => CAP_ALLOW,
-                        'teacher' => CAP_ALLOW,
-                        'manager' => CAP_ALLOW,
-                ),
-        ),
-);

db/install.php

@@ -14,6 +14,13 @@
 // You should have received a copy of the GNU General Public License
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
+/**
+ * @package   plagiarism_pchkorg
+ * @category  plagiarism
+ * @copyright PlagiarismCheck.org, https://plagiarismcheck.org/
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
 defined('MOODLE_INTERNAL') || die();
 
 function xmldb_plagiarism_pchkorg_install() {

form/plagiarism_pchkorg_setup_form.php

@@ -14,10 +14,23 @@
 // You should have received a copy of the GNU General Public License
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
+/**
+ * @package   plagiarism_pchkorg
+ * @category  plagiarism
+ * @copyright PlagiarismCheck.org, https://plagiarismcheck.org/
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
 defined('MOODLE_INTERNAL') || die();
 
+/**
+ * Class plagiarism_pchkorg_setup_form
+ */
 class plagiarism_pchkorg_setup_form extends moodleform {
 
+    /**
+     * @throws coding_exception
+     */
     public function definition() {
 
         $mform = &$this->_form;
@@ -42,6 +55,12 @@ class plagiarism_pchkorg_setup_form extends moodleform {
         $this->add_action_buttons(true);
     }
 
+    /**
+     * @param $message
+     * @param null $param
+     * @return string
+     * @throws coding_exception
+     */
     public static function trans($message, $param = null) {
         return get_string($message, 'plagiarism_pchkorg', $param);
     }

form/send_text_form.php

@@ -14,12 +14,25 @@
 // You should have received a copy of the GNU General Public License
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
+/**
+ * @package   plagiarism_pchkorg
+ * @category  plagiarism
+ * @copyright PlagiarismCheck.org, https://plagiarismcheck.org/
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
 defined('MOODLE_INTERNAL') || die();
 
 require_once($CFG->libdir . '/formslib.php');
 
+/**
+ * Class send_text_form
+ */
 class send_text_form extends moodleform {
-    // Add elements to form.
+
+    /**
+     * @throws coding_exception
+     */
     public function definition() {
         $mform = $this->_form; // Don't forget the underscore!
 
@@ -29,6 +42,5 @@ class send_text_form extends moodleform {
         $mform->setType('cmid', PARAM_INT);
 
         $this->add_action_buttons(false, get_string('pchkorg_submit', 'plagiarism_pchkorg'));
-
     }
 }

lib.php

@@ -14,6 +14,13 @@
 // You should have received a copy of the GNU General Public License
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
+/**
+ * @package   plagiarism_pchkorg
+ * @category  plagiarism
+ * @copyright PlagiarismCheck.org, https://plagiarismcheck.org/
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
 defined('MOODLE_INTERNAL') || die();
 
 global $CFG;
@@ -25,6 +32,9 @@ require_once(__DIR__ . '/classes/plagiarism_pchkorg_config_model.php');
 require_once(__DIR__ . '/classes/plagiarism_pchkorg_url_generator.php');
 require_once(__DIR__ . '/classes/plagiarism_pchkorg_api_provider.php');
 
+/**
+ * Class plagiarism_plugin_pchkorg
+ */
 class plagiarism_plugin_pchkorg extends plagiarism_plugin {
     /**
      * hook to allow plagiarism specific information to be displayed beside a submission
@@ -46,6 +56,10 @@ class plagiarism_plugin_pchkorg extends plagiarism_plugin {
 
         $cmid = $linkarray['cmid'];
         $file = $linkarray['file'];
+        $context = null;
+        if (!empty($cmid)) {
+            $context = context_module::instance($cmid);// Get context of course.
+        }
 
         if (!$pchkorgconfigmodel->is_enabled_for_module($cmid)) {
             return '';
@@ -59,6 +73,11 @@ class plagiarism_plugin_pchkorg extends plagiarism_plugin {
             return '';
         }
 
+        $isgranted = !empty($context) && has_capability('mod/assign:view', $context, null);
+        if (!$isgranted) {
+            return '';
+        }
+
         $where = new \stdClass();
         $where->cm = $cmid;
         $where->fileid = $file->get_id();
@@ -81,6 +100,10 @@ class plagiarism_plugin_pchkorg extends plagiarism_plugin {
     /* hook to save plagiarism specific settings on a module settings page
      * @param object $data - data from an mform submission.
     */
+    /**
+     * @param $data
+     * @throws dml_exception
+     */
     public function save_form_elements($data) {
         global $DB;
 
@@ -113,6 +136,13 @@ class plagiarism_plugin_pchkorg extends plagiarism_plugin {
         }
     }
 
+    /**
+     * @param object $mform
+     * @param object $context
+     * @param string $modulename
+     * @throws coding_exception
+     * @throws dml_exception
+     */
     public function get_form_elements_module($mform, $context, $modulename = '') {
         if (!$context || !isset($modulename)) {
             return;
@@ -174,6 +204,12 @@ class plagiarism_plugin_pchkorg extends plagiarism_plugin {
         echo $OUTPUT->box_end();
     }
 
+    /**
+     * @param $message
+     * @param null $param
+     * @return string
+     * @throws coding_exception
+     */
     public static function trans($message, $param = null) {
         return get_string($message, 'plagiarism_pchkorg', $param);
     }

page/check.php

@@ -14,6 +14,13 @@
 // You should have received a copy of the GNU General Public License
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
+/**
+ * @package   plagiarism_pchkorg
+ * @category  plagiarism
+ * @copyright PlagiarismCheck.org, https://plagiarismcheck.org/
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
 require_once(__DIR__ . '/../../../config.php');
 require_once(__DIR__ . '/../lib.php');
 require_once(__DIR__ . '/../form/send_text_form.php');
@@ -37,7 +44,7 @@ $cm = get_coursemodule_from_id('', $cmid);
 require_login($cm->course, true, $cm);
 $context = context_module::instance($cm->id);
 header('Content-Type: application/json');
-$isgranted = is_viewing($context, null, 'plagiarism/pchkorg:check');
+$isgranted = has_capability('mod/assign:view', $context, null);
 if (!$isgranted) {
     die('{error: "access denied"}');
 }

page/report.php

@@ -14,6 +14,13 @@
 // You should have received a copy of the GNU General Public License
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
+/**
+ * @package   plagiarism_pchkorg
+ * @category  plagiarism
+ * @copyright PlagiarismCheck.org, https://plagiarismcheck.org/
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
 require_once(__DIR__ . '/../../../config.php');
 require_once(__DIR__ . '/../lib.php');
 require_once(__DIR__ . '/../form/send_text_form.php');
@@ -36,7 +43,8 @@ $cm = get_coursemodule_from_id('', $cmid, 0, false, MUST_EXIST);
 require_login($cm->course, true, $cm);
 $context = context_module::instance($cm->id);// Get context of course.
 
-$isgranted = is_viewing($context, null, 'plagiarism/pchkorg:check');
+$isgranted = has_capability('mod/assign:view', $context, null);
+
 if (!$isgranted) {
     die('403 permission denied');
 }

settings.php

@@ -13,10 +13,11 @@
 //
 // You should have received a copy of the GNU General Public License
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
 /**
- * pl * plagiarism.php - allows the admin to configure plagiarism stuff
- *
  * @package   plagiarism_pchkorg
+ * @category  plagiarism
+ * @copyright PlagiarismCheck.org, https://plagiarismcheck.org/
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 

version.php

@@ -26,9 +26,9 @@ defined('MOODLE_INTERNAL') || die();
 if (!isset($plugin)) {
     $plugin = new stdClass();
 }
-$plugin->version = 2019020501;
+$plugin->version = 2019020601;
 $plugin->requires = 2017051501; // Requires Moodle 3.3 .
-$plugin->release = 'v2.2';
+$plugin->release = 'v2.3';
 $plugin->maturity = MATURITY_STABLE;
 
 $plugin->component = 'plagiarism_pchkorg';

view/check_report.php

@@ -14,6 +14,13 @@
 // You should have received a copy of the GNU General Public License
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
+/**
+ * @package   plagiarism_pchkorg
+ * @category  plagiarism
+ * @copyright PlagiarismCheck.org, https://plagiarismcheck.org/
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
 defined('MOODLE_INTERNAL') || die();
 
 $ajaxurl = new moodle_url('/plagiarism/pchkorg/page/check.php');

view/report.php

@@ -14,6 +14,13 @@
 // You should have received a copy of the GNU General Public License
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
+/**
+ * @package   plagiarism_pchkorg
+ * @category  plagiarism
+ * @copyright PlagiarismCheck.org, https://plagiarismcheck.org/
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
 defined('MOODLE_INTERNAL') || die();
 
 if (empty($error)) {

view/send_text.php

@@ -14,6 +14,13 @@
 // You should have received a copy of the GNU General Public License
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
+/**
+ * @package   plagiarism_pchkorg
+ * @category  plagiarism
+ * @copyright PlagiarismCheck.org, https://plagiarismcheck.org/
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
 defined('MOODLE_INTERNAL') || die();
 
 echo $OUTPUT->header();