Issues in create-courses.php (master) - Issues in master - smtech/canvas-management - Measure and Improve Code Quality continuously with Scrutinizer

Issues (70)

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Cross-Site Scripting

Cross-Site Scripting enables an attacker to inject code into the response of a web-request that is viewed by other users. It can for example be used to bypass access controls, or even to take over other users' accounts.

File Exposure

File Exposure allows an attacker to gain access to local files that he should not be able to access. These files can for example include database credentials, or other configuration files.

File Manipulation

File Manipulation enables an attacker to write custom data to files. This potentially leads to injection of arbitrary code on the server.

Object Injection

Object Injection enables an attacker to inject an object into PHP code, and can lead to arbitrary code execution, file exposure, or file manipulation attacks.

Code Injection

Code Injection enables an attacker to execute arbitrary code on the server.

Response Splitting

Response Splitting can be used to send arbitrary responses.

File Inclusion

File Inclusion enables an attacker to inject custom files into PHP's file loading mechanism, either explicitly passed to include, or for example via PHP's auto-loading mechanism.

Command Injection

Command Injection enables an attacker to inject a shell command that is execute with the privileges of the web-server. This can be used to expose sensitive data, or gain access of your server.

SQL Injection

SQL Injection enables an attacker to execute arbitrary SQL code on your database server gaining access to user data, or manipulating user data.

XPath Injection

XPath Injection enables an attacker to modify the parts of XML document that are read. If that XML document is for example used for authentication, this can lead to further vulnerabilities similar to SQL Injection.

LDAP Injection

LDAP Injection enables an attacker to inject LDAP statements potentially granting permission to run unauthorized queries, or modify content inside the LDAP tree.

Header Injection

Other Vulnerability

This category comprises other attack vectors such as manipulating the PHP runtime, loading custom extensions, freezing the runtime, or similar.

Regex Injection

Regex Injection enables an attacker to execute arbitrary code in your PHP process.

XML Injection

XML Injection enables an attacker to read files on your local filesystem including configuration files, or can be abused to freeze your web-server process.

Variable Injection

Variable Injection enables an attacker to overwrite program variables with custom data, and can lead to further vulnerabilities.

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courses/create-courses.php (1 issue)

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<?php

require_once __DIR__ . '/common.inc.php';

use Battis\DataUtilities;
use Battis\BootstrapSmarty\NotificationMessage;

$MANUALLY_CREATED_COURSES_ACCOUNT = 96;
$DEFAULT_TERM = 195;

/**
 * Generate a unique SIS ID
 *
 * @param string $name
 *
 * @return string
 **/
function generateSisId($name)
// Bad
class Router
{
    public function generate($path)
    {
        return $_SERVER['HOST'].$path;
    }
}

// Better
class Router
{
    private $host;

    public function __construct($host)
    {
        $this->host = $host;
    }

    public function generate($path)
    {
        return $this->host.$path;
    }
}

class Controller
{
    public function myAction(Request $request)
    {
        // Instead of
        $page = isset($_GET['page']) ? intval($_GET['page']) : 1;

        // Better (assuming you use the Symfony2 request)
        $page = $request->query->get('page', 1);
    }
}
{
    return strtolower(preg_replace('/[^a-z0-9\-]+/i', '-', $_REQUEST['prefix'] .
        $name . $_REQUEST['suffix']) . (empty($_REQUEST['unique']) ? '' : '.' .
        md5(time())));
}

define('STEP_INSTRUCTIONS', 1);
define('STEP_RESULT', 2);

$step = (empty($_REQUEST['step']) ? STEP_INSTRUCTIONS : $_REQUEST['step']);

switch ($step) {
    case STEP_RESULT:
        // TODO use $toolbox->explodeNewLines()
        $courses = array();
        $courseNames = explode("\n", $_REQUEST['courses']);
        foreach ($courseNames as $name) {
            if (!empty(trim($name))) {
                $courses[]['long_name'] = trim($name);
            }
        }

        if (empty($_REQUEST['account'])) {
            $toolbox->smarty_addMessage(
                'Account',
                'was not selected, defaulting to the <a target=\"_parent\" href="' . $_SESSION[CANVAS_INSTANCE_URL] . '/accounts/' . $MANUALLY_CREATED_COURSES_ACCOUNT . '">Manually-Created Courses</a> account.',
                NotificationMessage::WARNING
            );
            $account = $MANUALLY_CREATED_COURSES_ACCOUNT;
        } else {
            $account = $_REQUEST['account'];
        }

        if (empty($_REQUEST['term'])) {
            $toolbox->smarty_addMessage(
                'Term',
                'was not selected, defaulting to the Default Term.',
                NotificationMessage::WARNING
            );
            $term = $DEFAULT_TERM;
        } else {
            $term = $_REQUEST['term'];
        }

        $templated = false;
        if (empty($_REQUEST['template'])) {
            $toolbox->smarty_addMessage(
                'Template',
                'was not entered, courses are in default configuration.'
            );
        } else {
            $templated = true;
            $template = (is_int($_REQUEST['template']) ? $_REQUEST['template'] : "sis_course_id:{$_REQUEST['template']}");

            /* pull course settings as completely as possible */
            try {
                $source = $toolbox->api_get("courses/$template/settings");
                $source = array_merge(
                    $source->getArrayCopy(),
                    $toolbox->api_get("courses/$template")->getArrayCopy()
                );

                /* save ID and name to create a nice link later */
                $sourceId = $source['id'];
                $sourceName = $source['name'];

                /* clear settings that are provided form entry */
                unset($source['id']);
                unset($source['sis_course_id']);
                unset($source['integration_id']);
                unset($source['name']);
                unset($source['course_code']);
                unset($source['account_id']);
                unset($source['enrollment_term_id']);
                unset($source['start_at']);
                unset($source['end_at']);
                unset($source['enrollments']);

                /* why nest this, I mean... really? */
                $source = array('course' => $source);

                /* pull course navigation */
                $tabs = $toolbox->api_get("courses/$template/tabs", [
                    'include[]' => 'external'
                ]);
                $navigation = [];
                foreach ($tabs as $tab) {
                    if ($tab['id'] != 'home' && $tab['id'] != 'settings') {
                        $navigation[$tab['id']] = $tab;
                    }
                }
                uasort($navigation, function ($left, $right) {
                    return $left['position'] - $right['position'];
                });
            } catch (Exception $e) {
                $toolbox->exceptionErrorMessage($e);
            }
        }

        $csv = DataUtilities::loadCsvToArray('csv');
        if ($csv) {
            $courses = array_merge($courses, $csv);
        }

        if (!empty($courses)) {
            foreach ($courses as $course) {
                /* build parameter list */
                $params = array();

                if (!empty($course['course_id'])) {
                    $params['sis_course_id'] = $course['course_id'];
                } else {
                    $params['sis_course_id'] = generateSisId((empty($course['course_id']) ? $course['long_name'] : $course['course_id']));
                }

                if (!empty($course['long_name'])) {
                    $params['name'] = $course['long_name'];
                }

                if (!empty($course['short_name'])) {
                    $params['course_code'] = $course['short_name'];
                } elseif (!empty($params['name'])) {
                    $params['course_code'] = $params['name'];
                }

                if (!empty($course['account_id'])) {
                    $_account = "sis_account_id:{$course['account_id']}";
                } else {
                    $_account = $account;
                }

                if (!empty($course['term_id'])) {
                    $params['term_id'] = "sis_term_id:{$course['term_id']}";
                } elseif (!empty($term)) {
                    $params['term_id'] = $term;
                }

                if (!empty($course['start_at'])) {
                    $params['start_at'] = $course['start_at'];
                }

                if (!empty($course['end_at'])) {
                    $params['end_at'] = $course['end_at'];
                }

                /* create course */
                try {
                    $course = $toolbox->api_post(
                        "accounts/$_account/courses",
                        array(
                            'course' => $params
                        )
                    );

                    if ($templated) {
                        /* duplicate course settings */
                        $toolbox->api_put("/courses/{$course['id']}", $source);

                        /* duplicate course navigation */
                        foreach ($navigation as $id => $tab) {
                            $toolbox->api_put(
                                "courses/{$course['id']}/tabs/$id",
                                [
                                    'position' => $tab['position'],
                                    'visibility' => $tab['visibility']
                                ]
                            );
                        }

                        /* duplicate course content */
                        $migration = $toolbox->api_post(
                            "courses/{$course['id']}/content_migrations",
                            array(
                                'migration_type' => 'course_copy_importer',
                                'settings[source_course_id]' => $template
                            )
                        );

                        $toolbox->smarty_addMessage(
                            "<a target=\"_parent\" href=\"{$_SESSION[CANVAS_INSTANCE_URL]}/courses/{$course['id']}\">{$course['name']}</a>",
                            "has been created as a clone of <a target=\"_parent\" href=\"{$_SESSION[CANVAS_INSTANCE_URL]}/courses/$sourceId\">$sourceName</a>. Course content is being <a target=\"_parent\" href=\"{$_SESSION[CANVAS_INSTANCE_URL]}/courses/{$course['id']}/content_migrations\">migrated</a> right now.",
                            NotificationMessage::GOOD
                        );
                    } else {
                        $toolbox->smarty_addMessage(
                            "<a target=\"_parent\" href=\"{$_SESSION[CANVAS_INSTANCE_URL]}/courses/{$course['id']}\">{$course['name']}</a>",
                            "has been created.",
                            NotificationMessage::GOOD
                        );
                    }
                } catch (Exception $e) {
                    $toolbox->exceptionErrorMessage($e);
                }
            }
        } else {
            $toolbox->smarty_addMessage(
                'Courses',
                'No course names were entered',
                NotificationMessage::ERROR
            );
        }

        /* flow into STEP_INSTRUCTIONS */

    case STEP_INSTRUCTIONS:
    default:
        $toolbox->smarty_assign('accounts', $toolbox->getAccountList());
        $toolbox->smarty_assign('terms', $toolbox->getTermList());

        $toolbox->smarty_assign('formHidden', array('step' => STEP_RESULT));
        $toolbox->smarty_display(basename(__FILE__, '.php') . '/instructions.tpl');
}


1		<?php
2
3		require_once __DIR__ . '/common.inc.php';
4
5		use Battis\DataUtilities;
6		use Battis\BootstrapSmarty\NotificationMessage;
7
8		$MANUALLY_CREATED_COURSES_ACCOUNT = 96;
9		$DEFAULT_TERM = 195;
10
11		/**
12		* Generate a unique SIS ID
13		*
14		* @param string $name
15		*
16		* @return string
17		**/
18		function generateSisId($name)
		0 ignored issues – show Coding Style introduced 2016-08-22 18:53 UTC by Report Bug Copy Issue Report Show Similar Issues like this `generateSisId` uses the super-global variable `$_REQUEST` which is generally not recommended. Instead of super-globals, we recommend to explicitly inject the dependencies of your class. This makes your code less dependent on global state and it becomes generally more testable: // Bad class Router { public function generate($path) { return $_SERVER['HOST'].$path; } } // Better class Router { private $host; public function __construct($host) { $this->host = $host; } public function generate($path) { return $this->host.$path; } } class Controller { public function myAction(Request $request) { // Instead of $page = isset($_GET['page']) ? intval($_GET['page']) : 1; // Better (assuming you use the Symfony2 request) $page = $request->query->get('page', 1); } } Loading history...
19		{
20		return strtolower(preg_replace('/[^a-z0-9\-]+/i', '-', $_REQUEST['prefix'] .
21		$name . $_REQUEST['suffix']) . (empty($_REQUEST['unique']) ? '' : '.' .
22		md5(time())));
23		}
24
25		define('STEP_INSTRUCTIONS', 1);
26		define('STEP_RESULT', 2);
27
28		$step = (empty($_REQUEST['step']) ? STEP_INSTRUCTIONS : $_REQUEST['step']);
29
30		switch ($step) {
31		case STEP_RESULT:
32		// TODO use $toolbox->explodeNewLines()
33		$courses = array();
34		$courseNames = explode("\n", $_REQUEST['courses']);
35		foreach ($courseNames as $name) {
36		if (!empty(trim($name))) {
37		$courses[]['long_name'] = trim($name);
38		}
39		}
40
41		if (empty($_REQUEST['account'])) {
42		$toolbox->smarty_addMessage(
43		'Account',
44		'was not selected, defaulting to the <a target=\"_parent\" href="' . $_SESSION[CANVAS_INSTANCE_URL] . '/accounts/' . $MANUALLY_CREATED_COURSES_ACCOUNT . '">Manually-Created Courses</a> account.',
45		NotificationMessage::WARNING
46		);
47		$account = $MANUALLY_CREATED_COURSES_ACCOUNT;
48		} else {
49		$account = $_REQUEST['account'];
50		}
51
52		if (empty($_REQUEST['term'])) {
53		$toolbox->smarty_addMessage(
54		'Term',
55		'was not selected, defaulting to the Default Term.',
56		NotificationMessage::WARNING
57		);
58		$term = $DEFAULT_TERM;
59		} else {
60		$term = $_REQUEST['term'];
61		}
62
63		$templated = false;
64	View Code Duplication	if (empty($_REQUEST['template'])) {
65		$toolbox->smarty_addMessage(
66		'Template',
67		'was not entered, courses are in default configuration.'
68		);
69		} else {
70		$templated = true;
71		$template = (is_int($_REQUEST['template']) ? $_REQUEST['template'] : "sis_course_id:{$_REQUEST['template']}");
72
73		/* pull course settings as completely as possible */
74		try {
75		$source = $toolbox->api_get("courses/$template/settings");
76		$source = array_merge(
77		$source->getArrayCopy(),
78		$toolbox->api_get("courses/$template")->getArrayCopy()
79		);
80
81		/* save ID and name to create a nice link later */
82		$sourceId = $source['id'];
83		$sourceName = $source['name'];
84
85		/* clear settings that are provided form entry */
86		unset($source['id']);
87		unset($source['sis_course_id']);
88		unset($source['integration_id']);
89		unset($source['name']);
90		unset($source['course_code']);
91		unset($source['account_id']);
92		unset($source['enrollment_term_id']);
93		unset($source['start_at']);
94		unset($source['end_at']);
95		unset($source['enrollments']);
96
97		/* why nest this, I mean... really? */
98		$source = array('course' => $source);
99
100		/* pull course navigation */
101		$tabs = $toolbox->api_get("courses/$template/tabs", [
102		'include[]' => 'external'
103		]);
104		$navigation = [];
105		foreach ($tabs as $tab) {
106		if ($tab['id'] != 'home' && $tab['id'] != 'settings') {
107		$navigation[$tab['id']] = $tab;
108		}
109		}
110		uasort($navigation, function ($left, $right) {
111		return $left['position'] - $right['position'];
112		});
113		} catch (Exception $e) {
114		$toolbox->exceptionErrorMessage($e);
115		}
116		}
117
118		$csv = DataUtilities::loadCsvToArray('csv');
119		if ($csv) {
120		$courses = array_merge($courses, $csv);
121		}
122
123		if (!empty($courses)) {
124		foreach ($courses as $course) {
125		/* build parameter list */
126		$params = array();
127
128		if (!empty($course['course_id'])) {
129		$params['sis_course_id'] = $course['course_id'];
130		} else {
131		$params['sis_course_id'] = generateSisId((empty($course['course_id']) ? $course['long_name'] : $course['course_id']));
132		}
133
134		if (!empty($course['long_name'])) {
135		$params['name'] = $course['long_name'];
136		}
137
138	View Code Duplication	if (!empty($course['short_name'])) {
139		$params['course_code'] = $course['short_name'];
140		} elseif (!empty($params['name'])) {
141		$params['course_code'] = $params['name'];
142		}
143
144		if (!empty($course['account_id'])) {
145		$_account = "sis_account_id:{$course['account_id']}";
146		} else {
147		$_account = $account;
148		}
149
150	View Code Duplication	if (!empty($course['term_id'])) {
151		$params['term_id'] = "sis_term_id:{$course['term_id']}";
152		} elseif (!empty($term)) {
153		$params['term_id'] = $term;
154		}
155
156		if (!empty($course['start_at'])) {
157		$params['start_at'] = $course['start_at'];
158		}
159
160		if (!empty($course['end_at'])) {
161		$params['end_at'] = $course['end_at'];
162		}
163
164		/* create course */
165		try {
166		$course = $toolbox->api_post(
167		"accounts/$_account/courses",
168		array(
169		'course' => $params
170		)
171		);
172
173		if ($templated) {
174		/* duplicate course settings */
175		$toolbox->api_put("/courses/{$course['id']}", $source);
176
177		/* duplicate course navigation */
178	View Code Duplication	foreach ($navigation as $id => $tab) {
179		$toolbox->api_put(
180		"courses/{$course['id']}/tabs/$id",
181		[
182		'position' => $tab['position'],
183		'visibility' => $tab['visibility']
184		]
185		);
186		}
187
188		/* duplicate course content */
189		$migration = $toolbox->api_post(
190		"courses/{$course['id']}/content_migrations",
191		array(
192		'migration_type' => 'course_copy_importer',
193		'settings[source_course_id]' => $template
194		)
195		);
196
197		$toolbox->smarty_addMessage(
198		"<a target=\"_parent\" href=\"{$_SESSION[CANVAS_INSTANCE_URL]}/courses/{$course['id']}\">{$course['name']}</a>",
199		"has been created as a clone of <a target=\"_parent\" href=\"{$_SESSION[CANVAS_INSTANCE_URL]}/courses/$sourceId\">$sourceName</a>. Course content is being <a target=\"_parent\" href=\"{$_SESSION[CANVAS_INSTANCE_URL]}/courses/{$course['id']}/content_migrations\">migrated</a> right now.",
200		NotificationMessage::GOOD
201		);
202	View Code Duplication	} else {
203		$toolbox->smarty_addMessage(
204		"<a target=\"_parent\" href=\"{$_SESSION[CANVAS_INSTANCE_URL]}/courses/{$course['id']}\">{$course['name']}</a>",
205		"has been created.",
206		NotificationMessage::GOOD
207		);
208		}
209		} catch (Exception $e) {
210		$toolbox->exceptionErrorMessage($e);
211		}
212		}
213		} else {
214		$toolbox->smarty_addMessage(
215		'Courses',
216		'No course names were entered',
217		NotificationMessage::ERROR
218		);
219		}
220
221		/* flow into STEP_INSTRUCTIONS */
222
223		case STEP_INSTRUCTIONS:
224		default:
225		$toolbox->smarty_assign('accounts', $toolbox->getAccountList());
226		$toolbox->smarty_assign('terms', $toolbox->getTermList());
227
228		$toolbox->smarty_assign('formHidden', array('step' => STEP_RESULT));
229		$toolbox->smarty_display(basename(__FILE__, '.php') . '/instructions.tpl');
230		}
231

smtech / canvas-management

Issues (70)

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courses/create-courses.php (1 issue)

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