Use moodle task.

classes/observer.php

@@ -21,15 +21,31 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-defined('MOODLE_INTERNAL') || die();
+if (!defined('MOODLE_INTERNAL')) {
+    die('Direct access to this script is forbidden.'); // It must be included from a Moodle page.
+}
 
-require_once($CFG->dirroot . '/plagiarism/pchkorg/lib.php');
+require_once($CFG->dirroot.'/plagiarism/pchkorg/lib.php');
 
+/**
+ * This class subscribe to events.
+ */
 class plagiarism_pchkorg_observer {
+    /**
+     * Handle the course_module_deleted event.
+     * @param \core\event\course_module_deleted $event
+     */
+    public static function course_module_deleted(
+        \core\event\course_module_deleted $event) {
+        global $DB;
+        $eventdata = $event->get_data();
+
+        $DB->delete_records('plagiarism_pchkorg_files', array('cm' => $eventdata['contextinstanceid']));
+        $DB->delete_records('plagiarism_pchkorg_config', array('cm' => $eventdata['contextinstanceid']));
+    }
 
     /**
      * Handle the assignment assessable_uploaded event.
-     *
      * @param \assignsubmission_file\event\assessable_uploaded $event
      */
     public static function assignsubmission_file_uploaded(
@@ -44,7 +60,6 @@ class plagiarism_pchkorg_observer {
 
     /**
      * Handle the assignment assessable_uploaded event.
-     *
      * @param \assignsubmission_onlinetext\event\assessable_uploaded $event
      */
     public static function assignsubmission_onlinetext_uploaded(
@@ -59,7 +74,6 @@ class plagiarism_pchkorg_observer {
 
     /**
      * Handle the assignment assessable_submitted event.
-     *
      * @param \mod_assign\event\assessable_submitted $event
      */
     public static function assignsubmission_submitted(

classes/plagiarism_pchkorg_api_provider.php

@@ -24,25 +24,34 @@
 defined('MOODLE_INTERNAL') || die();
 
 /**
- * Class plagiarism_pchkorg_api_provider
+ * Class provider HTTP-API methods.
  */
 class plagiarism_pchkorg_api_provider {
 
     /**
-     * @var
+     * Auth token.
+     *
+     * @var string
      */
     private $token;
+
     /**
+     * Url of api.
+     *
      * @var string
      */
     private $endpoint;
 
     /**
-     * @var
+     * Last api error.
+     *
+     * @var string|null
      */
     private $lasterror;
 
     /**
+     * Fetch last api error.
+     *
      * @return mixed
      */
     public function get_last_error() {
@@ -50,6 +59,8 @@ class plagiarism_pchkorg_api_provider {
     }
 
     /**
+     * Setup last api error.
+     *
      * @param mixed $lasterror
      */
     public function set_last_error($lasterror) {
@@ -57,19 +68,19 @@ class plagiarism_pchkorg_api_provider {
     }
 
     /**
-     * plagiarism_pchkorg_api_provider constructor.
+     * Constructor for api provider.
      *
      * @param $token
      * @param string $endpoint
      */
     public function __construct($token, $endpoint = 'https://plagiarismcheck.org') {
-
-        $this->endpoint = 'http://plagcheck.local';
         $this->token = $token;
         $this->endpoint = $endpoint;
     }
 
     /**
+     * Send text for originality check.
+     *
      * @param $authorhash
      * @param $cousereid
      * @param $assignmentid
@@ -78,6 +89,7 @@ class plagiarism_pchkorg_api_provider {
      * @param $content
      * @param $mime
      * @param $filename
+     *
      * @return |null
      */
     public function send_group_text($authorhash, $cousereid, $assignmentid, $submissionid, $attachmentid, $content, $mime,
@@ -124,6 +136,8 @@ class plagiarism_pchkorg_api_provider {
     }
 
     /**
+     * Build HTTP body of request.
+     *
      * @param $boundary
      * @param $authorhash
      * @param $cousereid
@@ -155,6 +169,8 @@ class plagiarism_pchkorg_api_provider {
         $body .= $this->get_part('attachment_id', $attachmentid, $boundary);
         $body .= $this->get_part('filename', $filename, $boundary);
         $body .= $this->get_part('language', 'en', $boundary);
+        $body .= $this->get_part('skip_english_words_validation', '1', $boundary);
+        $body .= $this->get_part('skip_percentage_words_validation', '1', $boundary);
         $body .= $this->get_file_part('content', $content, $mime, $filename, $boundary);
         $body .= '--' . $boundary . '--' . $eol;
 
@@ -162,12 +178,15 @@ class plagiarism_pchkorg_api_provider {
     }
 
     /**
+     * Send text to the service for check.
+     *
      * @param $content
      * @param $mime
      * @param $filename
      * @return |null
      */
     public function send_text($content, $mime, $filename) {
+
         $boundary = sprintf('PLAGCHECKBOUNDARY-%s', uniqid(time()));
 
         $curl = new curl();
@@ -201,6 +220,32 @@ class plagiarism_pchkorg_api_provider {
     }
 
     /**
+     *
+     * Method send information to service thar agreement had been accepted.
+     * Method will be called only for personal account type.
+     *
+     */
+    public function save_accepted_agreement() {
+        $curl = new curl();
+        $curl->post(
+                $this->endpoint . '/api/v1/agreement/create/moodle-plugin/2019-04-11/',
+                '',
+                array(
+                        'CURLOPT_RETURNTRANSFER' => true,
+                        'CURLOPT_FOLLOWLOCATION' => true,
+                        'CURLOPT_SSL_VERIFYHOST' => false,
+                        'CURLOPT_SSL_VERIFYPEER' => false,
+                        'CURLOPT_POST' => true,
+                        'CURLOPT_HTTPHEADER' => array(
+                                'X-API-TOKEN: ' . $this->generate_api_token(),
+                        ),
+                )
+        );
+    }
+
+    /**
+     * Build part of HTTP body.
+     *
      * @param $name
      * @param $value
      * @param $boundary
@@ -217,6 +262,8 @@ class plagiarism_pchkorg_api_provider {
     }
 
     /**
+     * Build part of HTTP body. This part contains file.
+     *
      * @param $name
      * @param $value
      * @param $mime
@@ -237,6 +284,8 @@ class plagiarism_pchkorg_api_provider {
     }
 
     /**
+     * Build body for http-request.
+     *
      * @param $boundary
      * @param $content
      * @param $mime
@@ -248,6 +297,8 @@ class plagiarism_pchkorg_api_provider {
 
         $body = '';
         $body .= $this->get_part('language', 'en', $boundary);
+        $body .= $this->get_part('skip_english_words_validation', '1', $boundary);
+        $body .= $this->get_part('skip_percentage_words_validation', '1', $boundary);
         $body .= $this->get_file_part('text', $content, $mime, $filename, $boundary);
         $body .= '--' . $boundary . '--' . $eol;
 
@@ -255,15 +306,20 @@ class plagiarism_pchkorg_api_provider {
     }
 
     /**
+     * Convert user email to sha256 salted hash.
+     *
      * @param $email
      * @return string
      */
     public function user_email_to_hash($email) {
-        // We don't send raw user email to service.
+        // We don't send raw user email to the service.
         return hash('sha256', $this->token . $email);
     }
 
     /**
+     * Check type of service account.
+     * There are two types of accounts: personal and group.
+     *
      * @return bool
      */
     public function is_group_token() {
@@ -271,6 +327,8 @@ class plagiarism_pchkorg_api_provider {
     }
 
     /**
+     * Check that user belongs to group when it is group account.
+     *
      * @param string $email
      * @return bool
      */
@@ -307,8 +365,11 @@ class plagiarism_pchkorg_api_provider {
     }
 
     /**
+     * Check status of document.
+     * If document has been checked, state is 5.
+     *
      * @param $textid
-     * @return |null
+     * @return object|null
      */
     public function check_text($textid) {
         $curl = new curl();
@@ -333,6 +394,8 @@ class plagiarism_pchkorg_api_provider {
     }
 
     /**
+     * Build url for the api.
+     *
      * @param $id
      * @return string
      */
@@ -341,6 +404,8 @@ class plagiarism_pchkorg_api_provider {
     }
 
     /**
+     * Generate token for API auth.
+     *
      * @return string
      */
     public function generate_api_token() {
@@ -354,6 +419,8 @@ class plagiarism_pchkorg_api_provider {
     }
 
     /**
+     * List of supported mime.
+     *
      * @param $mime
      * @return bool
      */
@@ -364,7 +431,17 @@ class plagiarism_pchkorg_api_provider {
                 'application/rtf',
                 'application/vnd.oasis.opendocument.text',
                 'text/plain',
+                'plain/text',
                 'application/pdf',
         ), true);
     }
+
+    /**
+     * Return maximum size of document.
+     *
+     * @return int
+     */
+    public function get_max_filesize() {
+        return 20 * 1048576;
+    }
 }

classes/plagiarism_pchkorg_config_model.php

@@ -29,6 +29,10 @@ defined('MOODLE_INTERNAL') || die();
 class plagiarism_pchkorg_config_model {
 
     /**
+     *
+     * Check if plugin is enable for some specific module.
+     * Result is static.
+     *
      * @param $module
      * @return bool
      */
@@ -60,6 +64,9 @@ class plagiarism_pchkorg_config_model {
     }
 
     /**
+     *
+     * Save plugin settings.
+     *
      * @param $name
      * @param $value
      */
@@ -104,6 +111,10 @@ class plagiarism_pchkorg_config_model {
     }
 
     /**
+     *
+     * Fetch all plugin settings as array.
+     * Result is static.
+     *
      * @return array
      */
     public function get_all_system_config() {

classes/privacy/provider.php

@@ -57,10 +57,14 @@ class provider implements
                         'cm' => 'privacy:metadata:plagiarism_pchkorg_files:cm',
                         'fileid' => 'privacy:metadata:plagiarism_pchkorg_files:fileid',
                         'userid' => 'privacy:metadata:plagiarism_pchkorg_files:userid',
+                        'state' => 'privacy:metadata:plagiarism_pchkorg_files:state',
                         'score' => 'privacy:metadata:plagiarism_pchkorg_files:score',
+                        'created_at' => 'privacy:metadata:plagiarism_pchkorg_files:created_at',
                         'textid' => 'privacy:metadata:plagiarism_pchkorg_files:textid',
                         'reportid' => 'privacy:metadata:plagiarism_pchkorg_files:reportid',
                         'signature' => 'privacy:metadata:plagiarism_pchkorg_files:signature',
+                        'attempt' => 'privacy:metadata:plagiarism_pchkorg_files:attempt',
+                        'itemid' => 'privacy:metadata:plagiarism_pchkorg_files:itemid',
 
                 ),
                 'privacy:metadata:plagiarism_pchkorg_files'

classes/task/send_submissions.php

@@ -21,24 +21,37 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
+namespace plagiarism_pchkorg\task;
+
 defined('MOODLE_INTERNAL') || die();
 
-if (empty($error)) {
+/**
-    $PAGE->requires->js_init_code('window.document.getElementById("plagiarism_pchkorg_report_id").submit();', false);
+ * Send queued submissions to Turnitin.
-    echo $OUTPUT->header();
+ */
-    ?>
+class send_submissions extends \core\task\scheduled_task {
-    <form id="plagiarism_pchkorg_report_id" action="<?php echo htmlspecialchars($action) ?>" method="post">
-        <input type="hidden" name="token" value="<?php echo htmlspecialchars($token) ?>"/>
-        <input type="hidden" name="lms-type" value="moodle"/>
-        <input type="submit" value="<?php echo get_string('pchkorg_check_for_plagiarism_report', 'plagiarism_pchkorg'); ?>">
-    </form>
-    <?php
-} else {
-    echo $OUTPUT->header();
-    ?>
-    <h2>Error: <?php
-        echo htmlspecialchars($error) ?></h2>
-    <?php
-}
 
-echo $OUTPUT->footer();
+    /**
+     * Name of the task.
+     *
+     * @return string
+     * @throws \coding_exception
+     */
+    public function get_name() {
+        return get_string('sendqueuedsubmissions', 'plagiarism_pchkorg');
+    }
+
+    /**
+     * Task execution.
+     *
+     * @throws \coding_exception
+     * @throws \dml_exception
+     */
+    public function execute() {
+        global $CFG;
+
+        require_once($CFG->dirroot.'/plagiarism/pchkorg/lib.php');
+
+        $plugin = new \plagiarism_plugin_pchkorg();
+        $plugin->cron_send_submissions();
+    }
+}

classes/task/update_reports.php

@@ -21,32 +21,36 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
+namespace plagiarism_pchkorg\task;
+
 defined('MOODLE_INTERNAL') || die();
 
 /**
- * Class plagiarism_pchkorg_url_generator
+ * Update report Scores from Turnitin.
  */
-class plagiarism_pchkorg_url_generator {
+class update_reports extends \core\task\scheduled_task {
+
     /**
-     * @param $cmid
+     * Get a name of task
-     * @param $fileid
+     *
-     * @return moodle_url
+     * @return string
-     * @throws moodle_exception
+     * @throws \coding_exception
      */
-    public function get_check_url($cmid, $fileid) {
+    public function get_name() {
-        return new moodle_url(sprintf(
+        return get_string('updatereportscores', 'plagiarism_pchkorg');
-                        '/plagiarism/pchkorg/page/report.php?cmid=%s&file=%s',
-                        intval($cmid),
-                        intval($fileid)
-                )
-        );
     }
 
     /**
-     * @return moodle_url
+     * Task execution.
-     * @throws moodle_exception
+     *
+     * @throws \dml_exception
      */
-    public function get_status_url() {
+    public function execute() {
-        return new moodle_url('/plagiarism/pchkorg/page/status.php');
+        global $CFG;
+
+        require_once($CFG->dirroot.'/plagiarism/pchkorg/lib.php');
+
+        $plugin = new \plagiarism_plugin_pchkorg();
+        $plugin->cron_update_reports();
     }
 }

db/events.php

@@ -23,37 +23,21 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-echo $OUTPUT->header();
+$observers = array (
-?>
+    array(
-
+        'eventname' => '\assignsubmission_file\event\assessable_uploaded',
-    <style>
+        'callback'  => 'plagiarism_pchkorg_observer::assignsubmission_file_uploaded'
-        .plagiarism-preview-content {
+    ),
-            width: 800px;
+    array(
-            height: 400px;
+        'eventname' => '\assignsubmission_onlinetext\event\assessable_uploaded',
-            overflow-y: scroll;
+        'callback'  => 'plagiarism_pchkorg_observer::assignsubmission_onlinetext_uploaded'
-        }
+    ),
-
+    array(
-        .plagiarism-preview-content-inner {
+        'eventname' => '\mod_assign\event\assessable_submitted',
-            /*white-space: pre;*/
+        'callback'  => 'plagiarism_pchkorg_observer::assignsubmission_submitted'
-        }
+    ),
-    </style>
+    array(
-    <br/>
+        'eventname' => '\core\event\course_module_deleted',
-    <div class="plagiarism-preview-content">
+        'callback'  => 'plagiarism_pchkorg_observer::course_module_deleted'
-        <div class="plagiarism-preview-content-inner">
+    ),
-            <?php
+);
-            echo nl2br(htmlspecialchars($content, ENT_COMPAT | ENT_HTML401, $encoding = 'UTF-8')) ?>
-        </div>
-    </div>
-    <br/>
-    <div>
-        <?php
-
-        if ($issupported) {
-            echo $form->display();
-        } else {
-            echo 'file not supported';
-        }
-        ?>
-    </div>
-<?php
-echo $OUTPUT->footer();

db/install.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<XMLDB PATH="plagiarism/pchkorg/db" VERSION="20190318" COMMENT="XMLDB file for Moodle plagiarism/pchkorg plugin."
+<XMLDB PATH="plagiarism/pchkorg/db" VERSION="20190406" COMMENT="XMLDB file for Moodle plagiarism/pchkorg plugin."
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:noNamespaceSchemaLocation="../../../lib/xmldb/xmldb.xsd"
 >
@@ -8,14 +8,16 @@
       <FIELDS>
         <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
         <FIELD NAME="cm" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
-        <FIELD NAME="fileid" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="fileid" TYPE="int" LENGTH="10" NOTNULL="false" DEFAULT="0" SEQUENCE="false"/>
-        <FIELD NAME="userid" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="userid" TYPE="int" LENGTH="10" NOTNULL="false" DEFAULT="0" SEQUENCE="false"/>
         <FIELD NAME="state" TYPE="int" LENGTH="3" NOTNULL="false" SEQUENCE="false"/>
         <FIELD NAME="score" TYPE="float" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
         <FIELD NAME="created_at" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
         <FIELD NAME="textid" TYPE="int" LENGTH="11" NOTNULL="false" SEQUENCE="false"/>
         <FIELD NAME="reportid" TYPE="int" LENGTH="11" NOTNULL="false" SEQUENCE="false"/>
         <FIELD NAME="signature" TYPE="char" LENGTH="40" NOTNULL="false" DEFAULT="NULL" SEQUENCE="false" COMMENT="Sha1 signature of content"/>
+        <FIELD NAME="attempt" TYPE="int" LENGTH="5" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="itemid" TYPE="int" LENGTH="10" NOTNULL="false" SEQUENCE="false"/>
       </FIELDS>
       <KEYS>
         <KEY NAME="primary" TYPE="primary" FIELDS="id"/>

db/tasks.php

@@ -23,24 +23,23 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-require_once($CFG->libdir . '/formslib.php');
+$tasks = array(
-
+    array(
-/**
+        'classname' => 'plagiarism_pchkorg\task\update_reports',
- * Class send_text_form
+        'blocking' => 0,
- */
+        'minute' => '*/5',
-class send_text_form extends moodleform {
+        'hour' => '*',
-
+        'day' => '*',
-    /**
+        'dayofweek' => '*',
-     * @throws coding_exception
+        'month' => '*'
-     */
+    ),
-    public function definition() {
+    array(
-        $mform = $this->_form; // Don't forget the underscore!
+        'classname' => 'plagiarism_pchkorg\task\send_submissions',
-
+        'blocking' => 0,
-        $mform->addElement('hidden', 'fileid', '');
+        'minute' => '*/5',
-        $mform->setType('fileid', PARAM_INT);
+        'hour' => '*',
-        $mform->addElement('hidden', 'cmid', '');
+        'day' => '*',
-        $mform->setType('cmid', PARAM_INT);
+        'dayofweek' => '*',
-
+        'month' => '*'
-        $this->add_action_buttons(false, get_string('pchkorg_submit', 'plagiarism_pchkorg'));
+    ),
-    }
+);
-}

form/plagiarism_pchkorg_setup_form.php

@@ -24,11 +24,14 @@
 defined('MOODLE_INTERNAL') || die();
 
 /**
- * Class plagiarism_pchkorg_setup_form
+ * Class defined plugin settings form.
  */
 class plagiarism_pchkorg_setup_form extends moodleform {
 
     /**
+     *
+     * Method defined plugin settings form.
+     *
      * @throws coding_exception
      */
     public function definition() {

lang/en/plagiarism_pchkorg.php

@@ -36,18 +36,23 @@ $string['pchkorg_submit'] = 'Submit';
 $string['pchkorg_check_for_plagiarism_report'] = 'View report';
 $string['savedconfigsuccess'] = 'Settings had been changed';
 $string['pchkorg_check_for_plagiarism'] = 'Check for plagiarism';
-$string['pchkorg_disclosure'] = 'Submission will be sent to plagiarismcheck.org for check';
+$string['pchkorg_disclosure'] = 'Submission will be sent to <a target="_blank" href="https://plagiarismcheck.org/">PlagiarismCheck.org</a> for check.
-
+<br />
+By submitting assignment I agree with <a target="_blank" href="https://plagiarismcheck.org/terms-of-service/">Terms &amp; Conditions</a> '
+        . 'and <a target="_blank" href="https://plagiarismcheck.org/privacy-policy/">Privacy Policy</a>.';
 $string['privacy:metadata:plagiarism_pchkorg_files'] =
         'Table with information about a file within moodle system belonge to a check in plagiarismcheck.org system.';
 $string['privacy:metadata:plagiarism_pchkorg_files:cm'] = 'Course module identity ';
 $string['privacy:metadata:plagiarism_pchkorg_files:fileid'] = 'Identity of a submitted file';
 $string['privacy:metadata:plagiarism_pchkorg_files:userid'] = 'Identity of user who submit file';
+$string['privacy:metadata:plagiarism_pchkorg_files:state'] = 'Status of a document. For example: queued, sent, checked.';
 $string['privacy:metadata:plagiarism_pchkorg_files:score'] = 'Originality score';
+$string['privacy:metadata:plagiarism_pchkorg_files:created_at'] = 'Date and time when document was saved.';
 $string['privacy:metadata:plagiarism_pchkorg_files:textid'] = 'Identity of originality check';
 $string['privacy:metadata:plagiarism_pchkorg_files:reportid'] = 'Identity of originality report';
 $string['privacy:metadata:plagiarism_pchkorg_files:signature'] = 'Sha1 signature of content';
-
+$string['privacy:metadata:plagiarism_pchkorg_files:attempt'] = 'Amount of sending attempts';
+$string['privacy:metadata:plagiarism_pchkorg_files:itemid'] = 'Identity of submission';
 $string['privacy:metadata:plagiarism_pchkorg_config'] = 'Table with module settings';
 $string['privacy:metadata:plagiarism_pchkorg_config:cm'] = 'Course module identity';
 $string['privacy:metadata:plagiarism_pchkorg_config:name'] = 'Name of option';
@@ -56,6 +61,11 @@ $string['privacy:metadata:plagiarism_pchkorg_config:value'] = 'Value of option';
 $string['privacy:metadata:plagiarism_pchkorg'] = 'Service for originality check plagiarismcheck.org';
 $string['privacy:metadata:plagiarism_pchkorg:file'] =
         'Submission attachment for originality checkprivacy:metadata:plagiarism_pchkorg';
-
 $string['pchkorg:enable'] = 'Enable or Disable plugin';
 $string['privacy:metadata:core_files'] = 'We need a content of submission, for originality check';
+$string['sendqueuedsubmissions'] = '';
+$string['updatereportscores'] = '';
+$string['pchkorg_label_title'] = 'PlagiarismCheck.org ID: %s; Similarity Score: %s%%';
+$string['pchkorg_label_result'] = 'ID: %s Similarity: %s%%';
+$string['pchkorg_label_sent'] = 'ID: %s Sent';
+$string['pchkorg_label_queued'] = 'In queue';

lib.php

@@ -29,7 +29,6 @@ require_once($CFG->dirroot . '/plagiarism/lib.php');
 require_once($CFG->libdir . '/filelib.php');
 require_once($CFG->libdir . '/accesslib.php');
 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');
 
 /**
@@ -37,25 +36,30 @@ require_once(__DIR__ . '/classes/plagiarism_pchkorg_api_provider.php');
  */
 class plagiarism_plugin_pchkorg extends plagiarism_plugin {
     /**
-     * hook to allow plagiarism specific information to be displayed beside a submission
+     * hook to allow plagiarism specific information to be displayed beside a submission.
      *
      * @param array $linkarraycontains all relevant information for the plugin to generate a link
      * @return string
      *
      */
     public function get_links($linkarray) {
+
         global $DB, $USER;
 
         $pchkorgconfigmodel = new plagiarism_pchkorg_config_model();
-        $urlgenerator = new plagiarism_pchkorg_url_generator();
         $apitoken = $pchkorgconfigmodel->get_system_config('pchkorg_token');
         $apiprovider = new plagiarism_pchkorg_api_provider($apitoken);
 
         $cmid = $linkarray['cmid'];
+        if (array_key_exists('file', $linkarray)) {
             $file = $linkarray['file'];
+        } else {
+            // Online text submission.
+            $file = null;
+        }
 
         // We can do nothing with submissions which we can not handle.
-        if (!$apiprovider->is_supported_mime($file->get_mimetype())) {
+        if (null !== $file && !$apiprovider->is_supported_mime($file->get_mimetype())) {
             return '';
         }
 
@@ -78,8 +82,8 @@ class plagiarism_plugin_pchkorg extends plagiarism_plugin {
         // Only for some type of account, method will call a remote HTTP API.
         // The API will be called only once, because result is static.
         // Also, there is timeout 2 seconds for response.
-        // Even if service is unavailable, method will try call only once.
+        // Even if service will be unavailable, method will try call API only once.
-        // Also, we don't use use raw user email.
+        // Also, we don't use raw user email.
         if (!$apiprovider->is_group_member($USER->email)) {
             return '';
         }
@@ -91,28 +95,94 @@ class plagiarism_plugin_pchkorg extends plagiarism_plugin {
 
         $where = new \stdClass();
         $where->cm = $cmid;
-        $where->fileid = $file->get_id();
+        if ($file === null) {
-
+            $where->signature = sha1($linkarray['content']);
-        $filerecord = $DB->get_record('plagiarism_pchkorg_files', (array) $where);
+            $where->fileid = null;
-
-        $checkurl = $urlgenerator->get_check_url($cmid, $file->get_id());
-
-        if ($filerecord) {
-            $label = sprintf('%.2f', $filerecord->score) . '%';
-            $link = sprintf(' <a href="%s" target="_blank">( %s )</a> ', $checkurl->__toString(), $label);
         } else {
-            $label = get_string('pchkorg_check_for_plagiarism', 'plagiarism_pchkorg');
+            $where->fileid = $file->get_id();
-            $link = sprintf(' <a href="%s">( %s )</a> ', $checkurl->__toString(), $label);
         }
 
-        return $link;
+        $filerecords = $DB->get_records('plagiarism_pchkorg_files', (array) $where,
+                'id', '*', 0, 1);
+
+        if ($filerecords) {
+            $filerecord = end($filerecords);
+
+            $img = new moodle_url('/plagiarism/pchkorg/pix/icon.png');
+            $imgsrc = $img->__toString();
+
+            // Text had been successfully checked.
+            if ($filerecord->state == 5) {
+                $action = $apiprovider->get_report_action($filerecord->textid);
+                $reporttoken = $apiprovider->generate_api_token();
+                $formid = 'plagiarism_pchkorg_report_id_' . $filerecord->id;
+                $score = $filerecord->score;
+                $title = sprintf(get_string('pchkorg_label_title', 'plagiarism_pchkorg'),
+                        $filerecord->textid,
+                        $score);
+                $label = sprintf(get_string('pchkorg_label_result', 'plagiarism_pchkorg'), $filerecord->textid, $score);
+
+                if ($score < 30) {
+                    $color = '#63ec80a1';
+                } else if (30 < $score && $score < 60) {
+                    $color = '#f7b011';
+                } else {
+                    $color = '#f04343';
+                }
+
+                return '
+                <a style="padding: 5px 3px;
+text-decoration: none;
+background-color: ' . $color . ';
+color: black;
+cursor: pointer;
+border-radius: 3px 3px 3px 3px;
+margin: 4px;"
+            href="#" title="' . $title . '"
+            class="plagiarism_pchkorg_report_id_score"
+            onclick="document.getElementById(\'' . $formid . '\').submit(); return false;">
+            <img src="' . $imgsrc . '" alt="logo" width="20px;" />
+            ' . $label . '
+            </a><form target="_blank" id="' . $formid . '" action="' . $action . '" method="post">
+            <input type="hidden" name="token" value="' . $reporttoken . '"/>
+            <input type="hidden" name="lms-type" value="moodle"/>
+        </form>';
+            } else if ($filerecord->state == 10) {
+                $label = get_string('pchkorg_label_queued', 'plagiarism_pchkorg');
+                return '
+                <span style="padding: 5px 3px;
+text-decoration: none;
+background-color: #eeeded;
+color: black;
+border-radius: 3px 3px 3px 3px;
+margin: 4px;"
+            href="#" class="plagiarism_pchkorg_report_id_score">
+                <img src="' . $imgsrc . '" alt="logo" width="20px;" />
+                ' . $label . '
+            </span>';
+            } else if ($filerecord->state == 12) {
+                $label = sprintf(get_string('pchkorg_label_sent', 'plagiarism_pchkorg'), $filerecord->textid);
+                return '
+                <span style="padding: 5px 3px;
+text-decoration: none;
+background-color: #eeeded;
+color: black;
+border-radius: 3px 3px 3px 3px;
+margin: 4px;"
+            href="#" class="plagiarism_pchkorg_report_id_score">
+                <img src="' . $imgsrc . '" alt="logo" width="20px;" />
+                ' . $label . '
+            </span>';
+            }
+        }
+
+        return '';
     }
 
-    /* hook to save plagiarism specific settings on a module settings page
-     * @param object $data - data from an mform submission.
-    */
     /**
-     * @param $data
+     * hook to save plagiarism specific settings on a module settings page
+     *
+     * @param object $data - data from an mform submission.
      * @throws dml_exception
      */
     public function save_form_elements($data) {
@@ -148,6 +218,9 @@ class plagiarism_plugin_pchkorg extends plagiarism_plugin {
     }
 
     /**
+     *
+     *  Build plugin settings form.
+     *
      * @param object $mform
      * @param object $context
      * @param string $modulename
@@ -171,7 +244,8 @@ class plagiarism_plugin_pchkorg extends plagiarism_plugin {
                         'cm' => $cm,
                 ));
                 if (!empty($records)) {
-                    $mform->setDefault($records[0]->name, $records[0]->value);
+                    $record = end($records);
+                    $mform->setDefault($record->name, $record->value);
                 }
             }
 
@@ -191,7 +265,7 @@ class plagiarism_plugin_pchkorg extends plagiarism_plugin {
     }
 
     /**
-     * hook to allow a disclosure to be printed notifying users what will happen with their submission
+     * hook to allow a disclosure to be printed notifying users what will happen with their submission.
      *
      * @param int $cmid - course module id
      * @return string
@@ -206,7 +280,7 @@ class plagiarism_plugin_pchkorg extends plagiarism_plugin {
         // Get course details.
         $cm = get_coursemodule_from_id('', $cmid);
 
-        if ($cm->modname != 'assign') {
+        if (!$cm || $cm->modname != 'assign') {
             return '';
         }
 
@@ -217,7 +291,7 @@ class plagiarism_plugin_pchkorg extends plagiarism_plugin {
             return '';
         }
 
-        if ($configmodel->is_enabled_for_module($cmid) != '1') {
+        if (!$configmodel->is_enabled_for_module($cmid)) {
             return '';
         }
 
@@ -229,9 +303,345 @@ class plagiarism_plugin_pchkorg extends plagiarism_plugin {
         $formatoptions->noclean = true;
         $formatoptions->cmid = $cmid;
 
+        $result .= '<div style="background-color: #d5ffd5; padding: 10px; border: 1px solid #b7dab7">';
         $result .= format_text(get_string('pchkorg_disclosure', 'plagiarism_pchkorg'), FORMAT_MOODLE, $formatoptions);
+        $result .= '</div>';
         $result .= $OUTPUT->box_end();
 
         return $result;
     }
+
+    /**
+     *
+     * Method will handle event assessable_uploaded.
+     *
+     * @param $eventdata
+     * @return bool
+     * @throws coding_exception
+     * @throws dml_exception
+     */
+    public function event_handler($eventdata) {
+        global $USER, $DB;
+
+        // We support only assign module so just ignore all other.
+        if ($eventdata['other']['modulename'] !== 'assign') {
+            return true;
+        }
+
+        $pchkorgconfigmodel = new plagiarism_pchkorg_config_model();
+        $apitoken = $pchkorgconfigmodel->get_system_config('pchkorg_token');
+        $apiprovider = new plagiarism_pchkorg_api_provider($apitoken);
+
+        // SQL will be called only once, result is static.
+        $config = $pchkorgconfigmodel->get_system_config('pchkorg_use');
+        if ('1' !== $config) {
+            return true;
+        }
+
+        // Receive couser moudle id.
+        $cmid = $eventdata['contextinstanceid'];
+        // Remove the event if the course module no longer exists.
+        $cm = get_coursemodule_from_id($eventdata['other']['modulename'], $cmid);
+        if (!$cm) {
+            return true;
+        }
+
+        // SQL will be called only once per page. There is static result inside.
+        // Plugin is enabled for this module.
+        if (!$pchkorgconfigmodel->is_enabled_for_module($cm->id)) {
+            return true;
+        }
+
+        // Only for some type of account, method will call a remote HTTP API.
+        // The API will be called only once, because result is static.
+        // Also, there is timeout 2 seconds for response.
+        // Even if service is unavailable, method will try call only once.
+        // Also, we don't use raw users email.
+        if (!$apiprovider->is_group_member($USER->email)) {
+            return true;
+        }
+
+        // Set the author and submitter.
+        $submitter = $eventdata['userid'];
+        $author = (!empty($eventdata['relateduserid'])) ? $eventdata['relateduserid'] : $eventdata['userid'];
+
+        // Related user ID will be NULL if an instructor submits on behalf of a student who is in a group.
+        // To get around this, we get the group ID, get the group members and set the author as the first student in the group.
+        if ((empty($eventdata['relateduserid'])) && ($eventdata['other']['modulename'] == 'assign')
+                && has_capability('mod/assign:editothersubmission', context_module::instance($cm->id), $submitter)) {
+            $moodlesubmission = $DB->get_record('assign_submission', array('id' => $eventdata['objectid']), 'id, groupid');
+            if (!empty($moodlesubmission->groupid)) {
+                $author = $this->get_first_group_author($cm->course, $moodlesubmission->groupid);
+            }
+        }
+
+        // Get actual text content and files to be submitted for draft submissions.
+        // As this won't be present in eventdata for certain event types.
+        if ($eventdata['other']['modulename'] == 'assign' && $eventdata['eventtype'] == "assessable_submitted") {
+            // Get content.
+            $moodlesubmission = $DB->get_record('assign_submission', array('id' => $eventdata['objectid']), 'id');
+            if ($moodletextsubmission = $DB->get_record('assignsubmission_onlinetext',
+                    array('submission' => $moodlesubmission->id), 'onlinetext')) {
+                $eventdata['other']['content'] = $moodletextsubmission->onlinetext;
+            }
+
+            $filesconditions = array(
+                    'component' => 'assignsubmission_file',
+                    'itemid' => $moodlesubmission->id,
+                    'userid' => $author
+            );
+
+            $moodlefiles = $DB->get_records('files', $filesconditions);
+            if ($moodlefiles) {
+                $fs = get_file_storage();
+                foreach ($moodlefiles as $filedb) {
+                    $file = $fs->get_file_by_id($filedb->id);
+
+                    if (!$file) {
+                        // We can not find file so we do not send it in queue.
+                        continue;
+                    } else {
+                        try {
+                            // Check that we can fetch content without exception.
+                            $content = $file->get_content();
+                        } catch (Exception $e) {
+                            // No we can not.
+                            continue;
+                        }
+                    }
+
+                    if ($file->get_filename() === '.') {
+                        continue;
+                    }
+                    $filemime = $file->get_mimetype();
+
+                    // File type is not supported.
+                    if (!$apiprovider->is_supported_mime($filemime)) {
+                        continue;
+                    }
+
+                    $filerecord = new \stdClass();
+                    $filerecord->fileid = $file->get_id();
+                    $filerecord->cm = $cmid;
+                    $filerecord->userid = $USER->id;
+                    $filerecord->textid = null;
+                    $filerecord->state = 10;
+                    $filerecord->created_at = time();
+                    $filerecord->itemid = $eventdata['objectid'];
+                    $filerecord->signature = sha1($content);
+
+                    $DB->insert_record('plagiarism_pchkorg_files', $filerecord);
+                }
+            }
+        }
+
+        // Queue text content to send to plagiarismcheck.org.
+        // If there was an error when creating the assignment then still queue the submission so it can be saved as failed.
+        if (in_array($eventdata['eventtype'], array("content_uploaded", "assessable_submitted"))
+                && !empty($eventdata['other']['content'])) {
+
+            $signature = sha1($eventdata['other']['content']);
+
+            $filesconditions = array(
+                    'signature' => $signature,
+                    'cm' => $cmid,
+                    'userid' => $USER->id,
+                    'itemid' => $eventdata['objectid']
+            );
+
+            $oldfile = $DB->get_record('plagiarism_pchkorg_files', $filesconditions);
+            if ($oldfile) {
+                // There is the same check in database, so we can skip this one.
+                return true;
+            }
+
+            $filerecord = new \stdClass();
+            $filerecord->fileid = null;
+            $filerecord->cm = $cmid;
+            $filerecord->userid = $USER->id;
+            $filerecord->textid = null;
+            $filerecord->state = 10;
+            $filerecord->created_at = time();
+
+            $filerecord->itemid = $eventdata['objectid'];
+            $filerecord->signature = $signature;
+
+            $DB->insert_record('plagiarism_pchkorg_files', $filerecord);
+        }
+
+        return true;
+    }
+
+    /**
+     *
+     * Will find the first user in group assignment.
+     *
+     * @param $cmid
+     * @param $groupid
+     * @return mixed
+     * @throws coding_exception
+     */
+    private function get_first_group_author($cmid, $groupid) {
+        static $context;
+        if (empty($context)) {
+            $context = context_course::instance($cmid);
+        }
+
+        $groupmembers = groups_get_members($groupid, "u.id");
+        foreach ($groupmembers as $author) {
+            if (!has_capability('mod/assign:grade', $context, $author->id)) {
+                return $author->id;
+            }
+        }
+    }
+
+    /**
+     *
+     * Method will be called by cron. Method sends queued files into plagiarism check system.
+     *
+     * @return bool
+     * @throws coding_exception
+     * @throws dml_exception
+     */
+    public function cron_send_submissions() {
+        global $DB;
+
+        $pchkorgconfigmodel = new plagiarism_pchkorg_config_model();
+        $apitoken = $pchkorgconfigmodel->get_system_config('pchkorg_token');
+        $apiprovider = new plagiarism_pchkorg_api_provider($apitoken);
+
+        // SQL will be called only once, result is static.
+        $config = $pchkorgconfigmodel->get_system_config('pchkorg_use');
+        if ('1' !== $config) {
+            return true;
+        }
+
+        $filesconditions = array('state' => 10);
+
+        $moodlefiles = $DB->get_records('plagiarism_pchkorg_files', $filesconditions,
+                'id', '*', 0, 20);
+        if ($moodlefiles) {
+            $fs = get_file_storage();
+
+            foreach ($moodlefiles as $filedb) {
+                $textid = null;
+                $user = $DB->get_record('user', array('id' => $filedb->userid));
+                // This is attached file.
+                $cm = get_coursemodule_from_id('', $filedb->cm);
+                if ($filedb->fileid === null) {
+                    $moodletextsubmission = $DB->get_record('assignsubmission_onlinetext',
+                            array('submission' => $filedb->itemid), '*');
+                    if ($moodletextsubmission) {
+                        $content = $moodletextsubmission->onlinetext;
+
+                        if ($apiprovider->is_group_token()) {
+                            $textid = $apiprovider->send_group_text(
+                                    $apiprovider->user_email_to_hash($user->email),
+                                    $cm->course,
+                                    $cm->id,
+                                    $moodletextsubmission->id,
+                                    $moodletextsubmission->id,
+                                    html_to_text($content, 75, false),
+                                    'plain/text',
+                                    sprintf('%s-submussion.txt', $moodletextsubmission->id)
+                            );
+                        } else {
+                            $textid = $apiprovider->send_text(
+                                    html_to_text($content, 75, false),
+                                    'plain/text',
+                                    sprintf('%s-submussion.txt', $moodletextsubmission->id)
+                            );
+                        }
+                    }
+                } else {
+                    $moodlesubmission = $DB->get_record('assign_submission', array('assignment' => $cm->instance,
+                            'userid' => $filedb->userid, 'id' => $filedb->itemid), 'id');
+                    $file = $fs->get_file_by_id($filedb->fileid);
+                    if ($apiprovider->is_group_token()) {
+                        $textid = $apiprovider->send_group_text(
+                                $apiprovider->user_email_to_hash($user->email),
+                                $cm->course,
+                                $cm->id,
+                                $moodlesubmission->id,
+                                $file->get_id(),
+                                $file->get_content(),
+                                $file->get_mimetype(),
+                                $file->get_filename()
+                        );
+                    } else {
+                        $agreementwhere = array(
+                                'cm' => 0,
+                                'name' => 'accepter_agreement',
+                                'value' => '1'
+                        );
+                        $agreementaccepted = $DB->get_records('plagiarism_pchkorg_config', $agreementwhere);
+                        if (!$agreementaccepted) {
+                            $apiprovider->save_accepted_agreement();
+                            $DB->insert_record('plagiarism_pchkorg_config', $agreementwhere);
+                        }
+
+                        $textid = $apiprovider->send_text(
+                                $file->get_content(),
+                                $file->get_mimetype(),
+                                $file->get_filename()
+                        );
+                    }
+                }
+
+                $filedbnew = new stdClass();
+                $filedbnew->id = $filedb->id;
+                if ($textid) {
+                    // Text was successfully sent to the service.
+                    $filedbnew->textid = $textid;
+                    $filedbnew->state = 12; // 12 - is SENT.
+                } else {
+                    $filedbnew->attempt = $filedb->attempt + 1;
+                    if ($filedbnew->attempt > 6) {
+                        $filedbnew->state = 11; // Sending error.
+                    }
+                }
+                $DB->update_record('plagiarism_pchkorg_files', $filedbnew);
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * Method will update similarity score and change status of checks.
+     *
+     * @return bool
+     * @throws dml_exception
+     */
+    public function cron_update_reports() {
+        global $DB;
+
+        $pchkorgconfigmodel = new plagiarism_pchkorg_config_model();
+        $apitoken = $pchkorgconfigmodel->get_system_config('pchkorg_token');
+        $apiprovider = new plagiarism_pchkorg_api_provider($apitoken);
+
+        // SQL will be called only once, result is static.
+        $config = $pchkorgconfigmodel->get_system_config('pchkorg_use');
+        if ('1' !== $config) {
+            return true;
+        }
+
+        $filesconditions = array('state' => 12);
+
+        $moodlefiles = $DB->get_records('plagiarism_pchkorg_files', $filesconditions,
+                'id', '*', 0, 20);
+
+        foreach ($moodlefiles as $filedb) {
+            $report = $apiprovider->check_text($filedb->textid);
+            if ($report !== null) {
+                $filedbnew = new stdClass();
+                $filedbnew->id = $filedb->id;
+                $filedbnew->state = 5;
+                $filedbnew->reportid = $report->id;
+                $filedbnew->score = $report->percent;
+
+                $DB->update_record('plagiarism_pchkorg_files', $filedbnew);
+            }
+        }
+    }
 }

page/check.php

@@ -1,95 +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/>.
-
-/**
- * @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');
-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');
-
-global $PAGE, $CFG, $OUTPUT, $DB, $USER;
-
-$pchkorgconfigmodel = new plagiarism_pchkorg_config_model();
-$urlgenerator = new plagiarism_pchkorg_url_generator();
-$apiprovider = new plagiarism_pchkorg_api_provider(
-        $pchkorgconfigmodel->get_system_config('pchkorg_token')
-);
-
-$cmid = (int) required_param('cmid', PARAM_INT); // Course Module ID
-$fileid = (int) required_param('file', PARAM_INT); // plagiarism file id.
-$cm = get_coursemodule_from_id('', $cmid);
-require_login($cm->course, true, $cm);
-
-$context = context_module::instance($cm->id);
-header('Content-Type: application/json');
-$isgranted = has_capability('mod/assign:grade', $context, null);
-if (!$isgranted) {
-    die('{error: "access denied"}');
-}
-$fs = get_file_storage();
-$file = $fs->get_file_by_id($fileid);
-
-if (!$file) {
-    die('{error: "file not exists"}');
-}
-
-if ('submission_files' !== $file->get_filearea()
-        || $file->get_contextid() != $context->id) {
-    die('{error: "access denied"}');
-}
-
-// Prevent JS caching.
-$CFG->cachejs = false;
-$PAGE->set_url($urlgenerator->get_status_url());
-$where = new \stdClass();
-$where->cm = $cmid;
-$where->fileid = $fileid;
-
-$filerecord = $DB->get_record('plagiarism_pchkorg_files', (array) $where);
-
-if (!$filerecord) {
-    echo json_encode(array(
-            'success' => false,
-            'message' => '404 can not find text'
-    ));
-}
-
-$report = $apiprovider->check_text($filerecord->textid);
-if ($checked = (null !== $report)) {
-    $filerecord->reportid = $report->id;
-    $filerecord->score = $report->percent;
-    $DB->update_record('plagiarism_pchkorg_files', $filerecord);
-}
-
-$location = new moodle_url(sprintf(
-        '/plagiarism/pchkorg/page/report.php?cmid=%s&file=%s',
-        intval($cmid),
-        intval($fileid)
-));
-
-echo json_encode(array(
-        'success' => true,
-        'checked' => $checked,
-        'location' => $location->out(false)
-));

page/report.php

@@ -1,169 +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/>.
-
-/**
- * @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');
-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');
-
-global $PAGE, $CFG, $OUTPUT, $DB, $USER;
-
-$pchkorgconfigmodel = new plagiarism_pchkorg_config_model();
-$urlgenerator = new plagiarism_pchkorg_url_generator();
-$apiprovider = new plagiarism_pchkorg_api_provider($pchkorgconfigmodel->get_system_config('pchkorg_token'));
-
-$cmid = (int) required_param('cmid', PARAM_INT); // Course Module ID.
-$fileid = (int) required_param('file', PARAM_INT); // plagiarism file id.
-
-$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 = has_capability('mod/assign:view', $context, null);
-
-if (!$isgranted) {
-    die('403 permission denied');
-}
-
-$fs = get_file_storage();
-$form = new send_text_form($currenturl = $urlgenerator->get_check_url($cmid, $fileid));
-
-$CFG->cachejs = false;
-$PAGE->set_url($currenturl);
-$PAGE->set_pagelayout('report');
-$PAGE->set_title(get_string('pluginname', 'plagiarism_pchkorg'));
-$PAGE->set_heading(get_string('pluginname', 'plagiarism_pchkorg'));
-
-if ('POST' === $_SERVER['REQUEST_METHOD']) { // Form submission.
-
-    $data = $form->get_data();
-    $cmid = (int) $data->cmid;
-    $fileid = (int) $data->fileid;
-
-    $file = $fs->get_file_by_id($fileid);
-
-    $where = new \stdClass();
-    $where->cm = $cmid;
-    $where->fileid = $file->get_id();
-
-    $filerecord = $DB->get_record('plagiarism_pchkorg_files', (array) $where);
-    // Preventing some race condition.
-    if ($filerecord) {
-        redirect($urlgenerator->get_check_url($cmid, $fileid), 'Document already checked.');
-        exit;
-    }
-
-    if ('submission_files' !== $file->get_filearea()
-            || $file->get_contextid() != $context->id) {
-        die('permission denied');
-    }
-
-    if (!$file) {
-        // File not found.
-
-        die('404 not exists');
-    }
-
-    if ($apiprovider->is_group_token()) {
-        $textid = $apiprovider->send_group_text(
-                $apiprovider->user_email_to_hash($USER->email),
-                $cm->course,
-                $cm->id,
-                $cm->id,
-                $file->get_id(),
-                $file->get_content(),
-                $file->get_mimetype(),
-                $file->get_filename()
-        );
-    } else {
-        $textid = $apiprovider->send_text(
-                $file->get_content(),
-                $file->get_mimetype(),
-                $file->get_filename()
-        );
-    }
-
-    $message = '';
-    if (null !== $textid) {
-        $filerecord = new \stdClass();
-        $filerecord->fileid = $fileid;
-        $filerecord->cm = $cmid;
-        $filerecord->userid = $USER->id;
-        $filerecord->textid = $textid;
-        $filerecord->state = 1; // 1 - is SENT.
-        $filerecord->created_at = time();
-
-        $DB->insert_record('plagiarism_pchkorg_files', $filerecord);
-    } else {
-        if ('Invalid token' === $apiprovider->get_last_error()) {
-            $pchkorgconfigmodel->set_system_config('pchkorg_use', '0');
-        }
-        $message = $apiprovider->get_last_error();
-    }
-
-    redirect($urlgenerator->get_check_url($cmid, $fileid), $message);
-    exit;
-}
-
-$file = $fs->get_file_by_id($fileid);
-if ('submission_files' !== $file->get_filearea()
-        || $file->get_contextid() != $context->id) {
-    die('permission denied');
-}
-if (!$file) {
-    die('404 not exists');
-}
-
-$where = new \stdClass();
-$where->cm = $cmid;
-$where->fileid = $fileid;
-
-$filerecord = $DB->get_record('plagiarism_pchkorg_files', (array) $where);
-
-if (!$filerecord) {
-    $content = $file->get_content();
-    $mime = $file->get_mimetype();
-
-    if ($issupported = $apiprovider->is_supported_mime($file->get_mimetype())) {
-        if ('plain/text' === $mime || 'text/plain' === $mime) {
-            $content = $content = $file->get_content();
-        } else {
-            $content = $file->get_filename();
-        }
-
-        $default = array('fileid' => $fileid, 'cmid' => $cmid);
-        $form->set_data($default);
-    }
-
-    require('../view/send_text.php');
-} else if (null !== $filerecord->reportid) {
-    $action = $apiprovider->get_report_action($filerecord->textid);
-    $token = $apiprovider->generate_api_token();
-
-    require('../view/report.php');
-} else if (null !== $filerecord->textid) {
-
-    require('../view/check_report.php');
-}

settings.php

@@ -35,7 +35,7 @@ $pchkorgconfigmodel = new plagiarism_pchkorg_config_model();
 require_login();
 admin_externalpage_setup('plagiarismpchkorg');
 
-$context = context_system::instance(CONTEXT_SYSTEM);
+$context = context_system::instance();
 
 require_capability('moodle/site:config', $context, $USER->id, true, "nopermissions");
 

version.php

@@ -26,11 +26,10 @@ defined('MOODLE_INTERNAL') || die();
 if (!isset($plugin)) {
     $plugin = new stdClass();
 }
-$plugin->version = 2019031801;
+$plugin->version = 2019041101;
 $plugin->requires = 2017051501; // Requires Moodle 3.3 .
-$plugin->release = 'v3.1';
+$plugin->release = 'v3.2';
 $plugin->maturity = MATURITY_STABLE;
-
 $plugin->component = 'plagiarism_pchkorg';
 $plugin->dependencies = array(
         'mod_assign' => ANY_VERSION,

view/check_report.php

@@ -1,76 +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/>.
-
-/**
- * @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();
-
-$ajaxurl = new moodle_url('/plagiarism/pchkorg/page/check.php');
-$PAGE->requires->js_init_code("
-      var interval;
-      var data = {
-        'file': $('#plagcheck-loader').attr('data-file'),
-        'cmid': $('#plagcheck-loader').attr('data-cmid')
-      };
-      var checkStatus = function () {
-        $.post('{$ajaxurl}', data, function (response) {
-          if (!response || !response.success) {
-            $('#plagcheck-loader').hide();
-            clearInterval(interval);
-          } else if (response.checked) {
-            $('#plagcheck-loader').hide();
-            clearInterval(interval);
-            window.location.href = response.location;
-          }
-        }, 'JSON');
-      };
-      interval = setInterval(checkStatus, 1000);
-", true);
-
-echo $OUTPUT->header();
-?>
-    <style>
-        .loader {
-            border: 16px solid #f3f3f3; /* Light grey */
-            border-top: 16px solid #3498db; /* Blue */
-            border-radius: 50%;
-            width: 120px;
-            height: 120px;
-            animation: spin 2s linear infinite;
-        }
-
-        @keyframes spin {
-            0% {
-                transform: rotate(0deg);
-            }
-            100% {
-                transform: rotate(360deg);
-            }
-        }
-    </style>
-
-    <div>
-        <div id="plagcheck-loader" data-cmid="<?php
-        echo intval($cmid) ?>" data-file="<?php
-        echo intval($fileid) ?>" class="loader"></div>
-    </div>
-<?php
-echo $OUTPUT->footer();