276 lines
9.1 KiB
PHP
276 lines
9.1 KiB
PHP
<?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_api_provider {
|
|
|
|
private $token;
|
|
/**
|
|
* @var string
|
|
*/
|
|
private $endpoint;
|
|
|
|
private $lasterror;
|
|
|
|
/**
|
|
* @return mixed
|
|
*/
|
|
public function get_last_error() {
|
|
return $this->lasterror;
|
|
}
|
|
|
|
/**
|
|
* @param mixed $lasterror
|
|
*/
|
|
public function set_last_error($lasterror) {
|
|
$this->lasterror = $lasterror;
|
|
}
|
|
|
|
public function __construct($token, $endpoint = 'https://plagiarismcheck.org') {
|
|
$this->token = $token;
|
|
$this->endpoint = $endpoint;
|
|
}
|
|
|
|
public function send_group_text($authorhash, $cousereid, $assignmentid, $submissionid, $attachmentid, $content, $mime,
|
|
$filename) {
|
|
|
|
$boundary = sprintf('PLAGCHECKBOUNDARY-%s', uniqid(time()));
|
|
|
|
$curl = new curl();
|
|
$response = $curl->post(
|
|
$this->endpoint . '/lms/moodle/check-text/',
|
|
$this->get_body_for_group(
|
|
$boundary,
|
|
$authorhash,
|
|
$cousereid,
|
|
$assignmentid,
|
|
$submissionid,
|
|
$attachmentid,
|
|
$content,
|
|
$mime,
|
|
$filename),
|
|
array(
|
|
'CURLOPT_RETURNTRANSFER' => true,
|
|
'CURLOPT_FOLLOWLOCATION' => true,
|
|
'CURLOPT_SSL_VERIFYHOST' => false,
|
|
'CURLOPT_SSL_VERIFYPEER' => false,
|
|
'CURLOPT_HTTPHEADER' => array(
|
|
'X-API-TOKEN: ' . $this->generate_api_token(),
|
|
'Content-Type: multipart/form-data; boundary=' . $boundary
|
|
),
|
|
)
|
|
);
|
|
$id = null;
|
|
if ($json = json_decode($response)) {
|
|
if (isset($json->message)) {
|
|
$this->set_last_error($json->message);
|
|
return null;
|
|
}
|
|
if (isset($json->success) && $json->success) {
|
|
$id = $json->data->text->id;
|
|
}
|
|
}
|
|
|
|
return $id;
|
|
}
|
|
|
|
private function get_body_for_group($boundary,
|
|
$authorhash,
|
|
$cousereid,
|
|
$assignmentid,
|
|
$submissionid,
|
|
$attachmentid,
|
|
$content,
|
|
$mime,
|
|
$filename) {
|
|
$eol = "\r\n";
|
|
|
|
$body = '';
|
|
$body .= $this->get_part('token', $this->token, $boundary);
|
|
$body .= $this->get_part('hash', $authorhash, $boundary);
|
|
$body .= $this->get_part('course_id', $cousereid, $boundary);
|
|
$body .= $this->get_part('assignment_id', $assignmentid, $boundary);
|
|
$body .= $this->get_part('submission_id', $submissionid, $boundary);
|
|
$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_file_part('content', $content, $mime, $filename, $boundary);
|
|
$body .= '--' . $boundary . '--' . $eol;
|
|
|
|
return $body;
|
|
}
|
|
|
|
public function send_text($content, $mime, $filename) {
|
|
$boundary = sprintf('PLAGCHECKBOUNDARY-%s', uniqid(time()));
|
|
|
|
$curl = new curl();
|
|
$response = $curl->post(
|
|
$this->endpoint . '/api/v1/text',
|
|
$this->get_body($boundary, $content, $mime, $filename),
|
|
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(),
|
|
'Content-Type: multipart/form-data; boundary=' . $boundary
|
|
),
|
|
)
|
|
);
|
|
$id = null;
|
|
if ($json = json_decode($response)) {
|
|
if (isset($json->message)) {
|
|
$this->set_last_error($json->message);
|
|
return null;
|
|
}
|
|
if (isset($json->success) && $json->success) {
|
|
$id = $json->data->text->id;
|
|
}
|
|
}
|
|
|
|
return $id;
|
|
}
|
|
|
|
private function get_part($name, $value, $boundary) {
|
|
$eol = "\r\n";
|
|
|
|
$part = '--' . $boundary . $eol;
|
|
$part .= 'Content-Disposition: form-data; name="' . $name . '"' . $eol . $eol;
|
|
$part .= $value . $eol;
|
|
|
|
return $part;
|
|
}
|
|
|
|
private function get_file_part($name, $value, $mime, $filename, $boundary) {
|
|
$eol = "\r\n";
|
|
|
|
$part = '--' . $boundary . $eol;
|
|
$part .= 'Content-Disposition: form-data; name="' . $name . '"; filename="' . $filename . '";' . $eol;
|
|
$part .= 'Content-Type: ' . $mime . $eol;
|
|
$part .= 'Content-Length: ' . strlen($value) . $eol . $eol;
|
|
$part .= $value . $eol;
|
|
|
|
return $part;
|
|
}
|
|
|
|
private function get_body($boundary, $content, $mime, $filename) {
|
|
$eol = "\r\n";
|
|
|
|
$body = '';
|
|
$body .= $this->get_part('language', 'en', $boundary);
|
|
$body .= $this->get_file_part('text', $content, $mime, $filename, $boundary);
|
|
$body .= '--' . $boundary . '--' . $eol;
|
|
|
|
return $body;
|
|
}
|
|
|
|
public function user_email_to_hash($email) {
|
|
return hash('sha256', $this->token . $email);
|
|
}
|
|
|
|
public function is_group_token() {
|
|
return 'G-' === \substr($this->token, 0, 2);
|
|
}
|
|
|
|
public function is_group_member($email = '') {
|
|
if (!$this->is_group_token()) {
|
|
return true;
|
|
}
|
|
|
|
$curl = new curl();
|
|
$response = $curl->post($this->endpoint . '/lms/moodle/is-group-member/', array(
|
|
'token' => $this->token,
|
|
'hash' => $this->user_email_to_hash($email)
|
|
), array(
|
|
'CURLOPT_RETURNTRANSFER' => true,
|
|
'CURLOPT_FOLLOWLOCATION' => true,
|
|
'CURLOPT_SSL_VERIFYHOST' => false,
|
|
'CURLOPT_SSL_VERIFYPEER' => false,
|
|
));
|
|
|
|
if ($json = json_decode($response)) {
|
|
if (true == $json->is_member) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
public function check_text($textid) {
|
|
$curl = new curl();
|
|
$response = $curl->get($this->endpoint . '/api/v1/text/' . $textid, array(), array(
|
|
'CURLOPT_RETURNTRANSFER' => true,
|
|
'CURLOPT_FOLLOWLOCATION' => true,
|
|
'CURLOPT_SSL_VERIFYHOST' => false,
|
|
'CURLOPT_SSL_VERIFYPEER' => false,
|
|
'CURLOPT_POST' => false,
|
|
'CURLOPT_HTTPHEADER' => array(
|
|
'X-API-TOKEN: ' . $this->generate_api_token(),
|
|
'Content-Type: application/x-www-form-urlencoded'
|
|
),
|
|
));
|
|
$id = null;
|
|
if ($json = json_decode($response)) {
|
|
if (isset($json->data) && 5 == $json->data->state) {
|
|
$id = $json->data->report->id;
|
|
}
|
|
}
|
|
|
|
return $id;
|
|
}
|
|
|
|
public function get_report($id) {
|
|
$curl = new curl();
|
|
$response = $curl->get($this->endpoint . '/api/v1/text/report/' . $id, array(), array(
|
|
'CURLOPT_RETURNTRANSFER' => true,
|
|
'CURLOPT_FOLLOWLOCATION' => true,
|
|
'CURLOPT_SSL_VERIFYHOST' => false,
|
|
'CURLOPT_SSL_VERIFYPEER' => false,
|
|
'CURLOPT_POST' => false,
|
|
'CURLOPT_HTTPHEADER' => array(
|
|
'X-API-TOKEN: ' . $this->generate_api_token(),
|
|
),
|
|
));
|
|
|
|
return $response;
|
|
}
|
|
|
|
private function generate_api_token() {
|
|
global $USER;
|
|
|
|
if ($this->is_group_token()) {
|
|
return $this->token . '::' . hash('sha256', $this->token . $USER->email);
|
|
}
|
|
|
|
return $this->token;
|
|
}
|
|
|
|
public function is_supported_mime($mime) {
|
|
return in_array($mime, array(
|
|
'application/msword',
|
|
'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
|
|
'application/rtf',
|
|
'application/vnd.oasis.opendocument.text',
|
|
'text/plain',
|
|
'application/pdf',
|
|
), true);
|
|
}
|
|
}
|