Showing 1,091 of 1,093 total issues
Function cmdDrawMap
has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring. Open
public function cmdDrawMap($params, $editor)
{
header("Content-type: image/png");
// If the config file hasn't changed, then the image produced shouldn't have, either
$etag = md5_file($this->mapFileName);
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Cognitive Complexity
Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.
A method's cognitive complexity is based on a few simple rules:
- Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
- Code is considered more complex for each "break in the linear flow of the code"
- Code is considered more complex when "flow breaking structures are nested"
Further reading
Function resortMaps
has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring. Open
public function resortMaps()
{
$stmt = $this->pdo->query('SELECT * FROM weathermap_maps ORDER BY group_id,sortorder;');
$newMapOrder = array();
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Cognitive Complexity
Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.
A method's cognitive complexity is based on a few simple rules:
- Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
- Code is considered more complex for each "break in the linear flow of the code"
- Code is considered more complex when "flow breaking structures are nested"
Further reading
Function showMainPage
has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring. Open
public function showMainPage($editor)
{
global $hostPluginURL;
global $hostEditorURL;
global $hostType;
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Cognitive Complexity
Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.
A method's cognitive complexity is based on a few simple rules:
- Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
- Code is considered more complex for each "break in the linear flow of the code"
- Code is considered more complex when "flow breaking structures are nested"
Further reading
Function weathermap_show_tab
has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring. Open
function weathermap_show_tab()
{
global $config, $user_auth_realm_filenames;
if (api_plugin_user_realm_auth('weathermap-cacti10-plugin.php')) {
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Cognitive Complexity
Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.
A method's cognitive complexity is based on a few simple rules:
- Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
- Code is considered more complex for each "break in the linear flow of the code"
- Code is considered more complex when "flow breaking structures are nested"
Further reading
Define a constant instead of duplicating this literal "\n<p>" 8 times.</p> Open
print ($env=='CLI'?"\n\n":"\n<p>");
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Duplicated string literals make the process of refactoring error-prone, since you must be sure to update all occurrences.
On the other hand, constants can be referenced from many places, but only need to be updated in a single place.
Noncompliant Code Example
With the default threshold of 3:
function run() { prepare('action1'); // Non-Compliant - 'action1' is duplicated 3 times execute('action1'); release('action1'); }
Compliant Solution
ACTION_1 = 'action1'; function run() { prepare(ACTION_1); execute(ACTION_1); release(ACTION_1); }
Exceptions
To prevent generating some false-positives, literals having less than 5 characters are excluded.
Define a constant instead of duplicating this literal "all of Weathermap" 5 times. Open
'imagepng' => array(true, false, 'all of Weathermap', 'part of the GD library and the "gd" PHP extension'),
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Duplicated string literals make the process of refactoring error-prone, since you must be sure to update all occurrences.
On the other hand, constants can be referenced from many places, but only need to be updated in a single place.
Noncompliant Code Example
With the default threshold of 3:
function run() { prepare('action1'); // Non-Compliant - 'action1' is duplicated 3 times execute('action1'); release('action1'); }
Compliant Solution
ACTION_1 = 'action1'; function run() { prepare(ACTION_1); execute(ACTION_1); release(ACTION_1); }
Exceptions
To prevent generating some false-positives, literals having less than 5 characters are excluded.
Define a constant instead of duplicating this literal "part of the GD library and the "gd" PHP extension" 5 times. Open
'imagepng' => array(true, false, 'all of Weathermap', 'part of the GD library and the "gd" PHP extension'),
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Duplicated string literals make the process of refactoring error-prone, since you must be sure to update all occurrences.
On the other hand, constants can be referenced from many places, but only need to be updated in a single place.
Noncompliant Code Example
With the default threshold of 3:
function run() { prepare('action1'); // Non-Compliant - 'action1' is duplicated 3 times execute('action1'); release('action1'); }
Compliant Solution
ACTION_1 = 'action1'; function run() { prepare(ACTION_1); execute(ACTION_1); release(ACTION_1); }
Exceptions
To prevent generating some false-positives, literals having less than 5 characters are excluded.
Define a constant instead of duplicating this literal "include/global.php" 4 times. Open
@include_once $cacti_root."include/global.php";
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Duplicated string literals make the process of refactoring error-prone, since you must be sure to update all occurrences.
On the other hand, constants can be referenced from many places, but only need to be updated in a single place.
Noncompliant Code Example
With the default threshold of 3:
function run() { prepare('action1'); // Non-Compliant - 'action1' is duplicated 3 times execute('action1'); release('action1'); }
Compliant Solution
ACTION_1 = 'action1'; function run() { prepare(ACTION_1); execute(ACTION_1); release(ACTION_1); }
Exceptions
To prevent generating some false-positives, literals having less than 5 characters are excluded.
Define a constant instead of duplicating this literal "base_url" 3 times. Open
$config['base_url'] = (isset($config['url_path']) ? $config['url_path'] : $cacti_url);
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Duplicated string literals make the process of refactoring error-prone, since you must be sure to update all occurrences.
On the other hand, constants can be referenced from many places, but only need to be updated in a single place.
Noncompliant Code Example
With the default threshold of 3:
function run() { prepare('action1'); // Non-Compliant - 'action1' is duplicated 3 times execute('action1'); release('action1'); }
Compliant Solution
ACTION_1 = 'action1'; function run() { prepare(ACTION_1); execute(ACTION_1); release(ACTION_1); }
Exceptions
To prevent generating some false-positives, literals having less than 5 characters are excluded.
Remove this unused private "validateArgMaphash" method. Open
private function validateArgMaphash($value)
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private
methods that are never executed are dead code: unnecessary, inoperative code that should be removed. Cleaning out dead code
decreases the size of the maintained codebase, making it easier to understand the program and preventing bugs from being introduced.
Noncompliant Code Example
public class Foo { private function Foo() {} // Compliant, private empty constructor intentionally used to prevent any direct instantiation of a class. public static function doSomething() { $foo = new Foo(); ... } private function unusedPrivateFunction() { // Noncompliant } }
Compliant Solution
public class Foo { private function Foo(){} // Compliant, private empty constructor intentionally used to prevent any direct instantiation of a class. public static function doSomething() { $foo = new Foo(); } }
See
- CERT, MSC07-CPP. - Detect and remove dead code
Remove this commented out code. Open
// $result = db_fetch_row($SQL);
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Programmers should not comment out code as it bloats programs and reduces readability.
Unused code should be deleted and can be retrieved from source control history if required.
See
- MISRA C:2004, 2.4 - Sections of code should not be "commented out".
- MISRA C++:2008, 2-7-2 - Sections of code shall not be "commented out" using C-style comments.
- MISRA C++:2008, 2-7-3 - Sections of code should not be "commented out" using C++ comments.
- MISRA C:2012, Dir. 4.4 - Sections of code should not be "commented out"
Remove this commented out code. Open
//include_once dirname(__FILE__) . "/../Utility.phpace Weathermap\Plugins\Datasources;
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Programmers should not comment out code as it bloats programs and reduces readability.
Unused code should be deleted and can be retrieved from source control history if required.
See
- MISRA C:2004, 2.4 - Sections of code should not be "commented out".
- MISRA C++:2008, 2-7-2 - Sections of code shall not be "commented out" using C-style comments.
- MISRA C++:2008, 2-7-3 - Sections of code should not be "commented out" using C++ comments.
- MISRA C:2012, Dir. 4.4 - Sections of code should not be "commented out"
Define a constant instead of duplicating this literal "userid" 4 times. Open
$this->assertTrue($this->objectArrayIncludes($users, "userid", $guestUser));
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Duplicated string literals make the process of refactoring error-prone, since you must be sure to update all occurrences.
On the other hand, constants can be referenced from many places, but only need to be updated in a single place.
Noncompliant Code Example
With the default threshold of 3:
function run() { prepare('action1'); // Non-Compliant - 'action1' is duplicated 3 times execute('action1'); release('action1'); }
Compliant Solution
ACTION_1 = 'action1'; function run() { prepare(ACTION_1); execute(ACTION_1); release(ACTION_1); }
Exceptions
To prevent generating some false-positives, literals having less than 5 characters are excluded.
Define a constant instead of duplicating this literal "third_named_node" 18 times. Open
$editor->addNode(200, 200, "third_named_node", "named_node");
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Duplicated string literals make the process of refactoring error-prone, since you must be sure to update all occurrences.
On the other hand, constants can be referenced from many places, but only need to be updated in a single place.
Noncompliant Code Example
With the default threshold of 3:
function run() { prepare('action1'); // Non-Compliant - 'action1' is duplicated 3 times execute('action1'); release('action1'); }
Compliant Solution
ACTION_1 = 'action1'; function run() { prepare(ACTION_1); execute(ACTION_1); release(ACTION_1); }
Exceptions
To prevent generating some false-positives, literals having less than 5 characters are excluded.
Define a constant instead of duplicating this literal "other_named_node" 19 times. Open
$editor->addNode(100, 200, "other_named_node");
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- Exclude checks
Duplicated string literals make the process of refactoring error-prone, since you must be sure to update all occurrences.
On the other hand, constants can be referenced from many places, but only need to be updated in a single place.
Noncompliant Code Example
With the default threshold of 3:
function run() { prepare('action1'); // Non-Compliant - 'action1' is duplicated 3 times execute('action1'); release('action1'); }
Compliant Solution
ACTION_1 = 'action1'; function run() { prepare(ACTION_1); execute(ACTION_1); release(ACTION_1); }
Exceptions
To prevent generating some false-positives, literals having less than 5 characters are excluded.
Remove this commented out code. Open
//require_once dirname(__FILE__) . '/../lib/all.php';
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- Exclude checks
Programmers should not comment out code as it bloats programs and reduces readability.
Unused code should be deleted and can be retrieved from source control history if required.
See
- MISRA C:2004, 2.4 - Sections of code should not be "commented out".
- MISRA C++:2008, 2-7-2 - Sections of code shall not be "commented out" using C-style comments.
- MISRA C++:2008, 2-7-3 - Sections of code should not be "commented out" using C++ comments.
- MISRA C:2012, Dir. 4.4 - Sections of code should not be "commented out"
Refactor this function to reduce its Cognitive Complexity from 23 to the 15 allowed. Open
public function drawMap(
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Cognitive Complexity is a measure of how hard the control flow of a function is to understand. Functions with high Cognitive Complexity will be difficult to maintain.
See
Add a "case default" clause to this "switch" statement. Open
switch ($which) {
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The requirement for a final case default
clause is defensive programming. The clause should either take appropriate action, or contain
a suitable comment as to why no action is taken. Even when the switch
covers all current values of an enum
, a default case
should still be used because there is no guarantee that the enum
won't be extended.
Noncompliant Code Example
switch ($param) { //missing default clause case 0: do_something(); break; case 1: do_something_else(); break; } switch ($param) { default: // default clause should be the last one error(); break; case 0: do_something(); break; case 1: do_something_else(); break; }
Compliant Solution
switch ($param) { case 0: do_something(); break; case 1: do_something_else(); break; default: error(); break; }
See
- MISRA C:2004, 15.0 - The MISRA C switch syntax shall be used.
- MISRA C:2004, 15.3 - The final clause of a switch statement shall be the default clause
- MISRA C++:2008, 6-4-3 - A switch statement shall be a well-formed switch statement.
- MISRA C++:2008, 6-4-6 - The final clause of a switch statement shall be the default-clause
- MISRA C:2012, 16.1 - All switch statements shall be well-formed
- MISRA C:2012, 16.4 - Every switch statement shall have a default label
- MISRA C:2012, 16.5 - A default label shall appear as either the first or the last switch label of a switch statement
- MITRE, CWE-478 - Missing Default Case in Switch Statement
- CERT, MSC01-C. - Strive for logical completeness
- CERT, MSC01-CPP. - Strive for logical completeness
Add a "case default" clause to this "switch" statement. Open
switch ($which) {
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- Exclude checks
The requirement for a final case default
clause is defensive programming. The clause should either take appropriate action, or contain
a suitable comment as to why no action is taken. Even when the switch
covers all current values of an enum
, a default case
should still be used because there is no guarantee that the enum
won't be extended.
Noncompliant Code Example
switch ($param) { //missing default clause case 0: do_something(); break; case 1: do_something_else(); break; } switch ($param) { default: // default clause should be the last one error(); break; case 0: do_something(); break; case 1: do_something_else(); break; }
Compliant Solution
switch ($param) { case 0: do_something(); break; case 1: do_something_else(); break; default: error(); break; }
See
- MISRA C:2004, 15.0 - The MISRA C switch syntax shall be used.
- MISRA C:2004, 15.3 - The final clause of a switch statement shall be the default clause
- MISRA C++:2008, 6-4-3 - A switch statement shall be a well-formed switch statement.
- MISRA C++:2008, 6-4-6 - The final clause of a switch statement shall be the default-clause
- MISRA C:2012, 16.1 - All switch statements shall be well-formed
- MISRA C:2012, 16.4 - Every switch statement shall have a default label
- MISRA C:2012, 16.5 - A default label shall appear as either the first or the last switch label of a switch statement
- MITRE, CWE-478 - Missing Default Case in Switch Statement
- CERT, MSC01-C. - Strive for logical completeness
- CERT, MSC01-CPP. - Strive for logical completeness
Remove this commented out code. Open
// ) {
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- Exclude checks
Programmers should not comment out code as it bloats programs and reduces readability.
Unused code should be deleted and can be retrieved from source control history if required.
See
- MISRA C:2004, 2.4 - Sections of code should not be "commented out".
- MISRA C++:2008, 2-7-2 - Sections of code shall not be "commented out" using C-style comments.
- MISRA C++:2008, 2-7-3 - Sections of code should not be "commented out" using C++ comments.
- MISRA C:2012, Dir. 4.4 - Sections of code should not be "commented out"