Client::getErrorStringFromResponseBody() - Code Metrics - Inspection of "Fix/error handling" - PeeHaa/AsyncTwitter - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#3)

unknown

created 2016-10-04 09:04 UTC

Client::getErrorStringFromResponseBody() A

↳ Parent: Client

Complexity

Conditions	3
Paths	3

Size

Total Lines	16
Code Lines	9

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	12

Importance

Changes

Metric	Value
dl	0
loc	16
c	0
b	0
f	0
ccs	0
cts	13
cp	0
rs	9.4285
cc	3
eloc	9
nc	3
nop	1
crap	12

<?php declare(strict_types=1);

namespace PeeHaa\AsyncTwitter\Api;

use Amp\Artax\Response as HttpResponse;
use Amp\Promise;
use ExceptionalJSON\DecodeErrorException as JSONDecodeErrorException;
use PeeHaa\AsyncTwitter\Credentials\AccessToken;
use PeeHaa\AsyncTwitter\Credentials\Application;
use PeeHaa\AsyncTwitter\Http\Artax;
use PeeHaa\AsyncTwitter\Oauth\Header;
use PeeHaa\AsyncTwitter\Oauth\Parameters;
use PeeHaa\AsyncTwitter\Oauth\Signature\BaseString;
use PeeHaa\AsyncTwitter\Oauth\Signature\Key;
use PeeHaa\AsyncTwitter\Oauth\Signature\Signature;
use PeeHaa\AsyncTwitter\Request\Body;
use PeeHaa\AsyncTwitter\Request\Parameter;
use PeeHaa\AsyncTwitter\Request\Url;
use function Amp\resolve;
use function ExceptionalJSON\decode as json_try_decode;

class Client
{
    private $httpClient;

    private $applicationCredentials;

    private $accessToken;

    public function __construct(Artax $httpClient, Application $applicationCredentials, AccessToken $accessToken)
    {
        $this->httpClient             = $httpClient;
        $this->applicationCredentials = $applicationCredentials;
        $this->accessToken            = $accessToken;
    }

    public function request(Request $request): Promise
    {
        switch ($request->getMethod()) {
            case 'POST':
                return $this->post($request);

            case 'GET':
                return $this->get($request);

            default:
                throw new InvalidMethodException();
        }
    }

    private function getErrorStringFromResponseBody(array $body)
    {
        if (!isset($body['errors'])) {
            return ['Unknown error', -1, []];
        }

        $message = (string)($body['errors'][0]['message'] ?? 'Unknown error');
        $code = (int)($body['errors'][0]['code'] ?? -1);
$a = "a";
$ab = "ab";
$abc = "abc";
        $extra = [];
$a = "a";
$ab = "ab";
$abc = "abc";

        for ($i = 1; isset($body['errors'][$i]); $i++) {
            $extra[(int)($body['errors'][$i]['code'] ?? -1)] = (string)($body['errors'][$i]['message'] ?? 'Unknown error');

        }

        return [$message, $code, $extra];
    }

    // https://dev.twitter.com/overview/api/response-codes
    private function throwFromErrorResponse(HttpResponse $response, array $body)
    {
        list($message, $code, $extra) = $this->getErrorStringFromResponseBody($body);

        switch ($response->getStatus()) {
            case 400: throw new BadRequestException($message, $code, null, $extra);
switch ($expr) {
    case "A": { //wrong
        doSomething();
        break;
    }
    case "B"; //wrong
        doSomething();
        break;
    case "C": //right
        doSomething();
        break;
}
            case 401: throw new UnauthorizedException($message, $code, null, $extra);
switch ($expr) {
    case "A": { //wrong
        doSomething();
        break;
    }
    case "B"; //wrong
        doSomething();
        break;
    case "C": //right
        doSomething();
        break;
}
            case 403: throw new ForbiddenException($message, $code, null, $extra);
switch ($expr) {
    case "A": { //wrong
        doSomething();
        break;
    }
    case "B"; //wrong
        doSomething();
        break;
    case "C": //right
        doSomething();
        break;
}
            case 404: throw new NotFoundException($message, $code, null, $extra);
switch ($expr) {
    case "A": { //wrong
        doSomething();
        break;
    }
    case "B"; //wrong
        doSomething();
        break;
    case "C": //right
        doSomething();
        break;
}
            case 406: throw new NotAcceptableException($message, $code, null, $extra);
switch ($expr) {
    case "A": { //wrong
        doSomething();
        break;
    }
    case "B"; //wrong
        doSomething();
        break;
    case "C": //right
        doSomething();
        break;
}
            case 410: throw new GoneException($message, $code, null, $extra);
switch ($expr) {
    case "A": { //wrong
        doSomething();
        break;
    }
    case "B"; //wrong
        doSomething();
        break;
    case "C": //right
        doSomething();
        break;
}
            case 420: throw new RateLimitTriggeredException($message, $code, null, $extra);
switch ($expr) {
    case "A": { //wrong
        doSomething();
        break;
    }
    case "B"; //wrong
        doSomething();
        break;
    case "C": //right
        doSomething();
        break;
}
            case 422: throw new UnprocessableEntityException($message, $code, null, $extra);
switch ($expr) {
    case "A": { //wrong
        doSomething();
        break;
    }
    case "B"; //wrong
        doSomething();
        break;
    case "C": //right
        doSomething();
        break;
}
            case 429: throw new RateLimitTriggeredException($message, $code, null, $extra);
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 500: throw new ServerErrorException($message, $code, null, $extra);
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 502: throw new BadGatewayException($message, $code, null, $extra);
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 503: throw new ServiceUnavailableException($message, $code, null, $extra);
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 504: throw new GatewayTimeoutException($message, $code, null, $extra);
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
        }
    }

    private function handleResponse(Promise $responsePromise): Promise
    {
        return resolve(function() use($responsePromise) {
            /** @var HttpResponse $response */
            $response = yield $responsePromise;

            try {
                $decoded = json_try_decode($response->getBody(), true);
            } catch (JSONDecodeErrorException $e) {
                throw new RequestFailedException('Failed to decode response body as JSON', $e->getCode(), $e);
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
            }

            $this->throwFromErrorResponse($response, $decoded);

            return $decoded;
        });
    }

    private function post(Request $request): Promise

    {
        $header = $this->getHeader('POST', $request->getEndpoint(), ...$request->getParameters());

        $response = $this->httpClient->post($request->getEndpoint(), $header, new Body(...$request->getParameters()));
        return $this->handleResponse($response);
    }

    private function get(Request $request): Promise

    {
        $header = $this->getHeader('GET', $request->getEndpoint(), ...$request->getParameters());

        $response = $this->httpClient->get($request->getEndpoint(), $header, ...$request->getParameters());
        return $this->handleResponse($response);
    }

    private function getHeader(string $method, Url $url, Parameter ...$parameters): Header
    {
        $oauthParameters     = new Parameters($this->applicationCredentials, $this->accessToken, $url, ...$parameters);
        $baseSignatureString = new BaseString($method, $url, $oauthParameters);
        $signingKey          = new Key($this->applicationCredentials, $this->accessToken);
        $signature           = new Signature($baseSignatureString, $signingKey);

        return new Header($oauthParameters, $signature);
    }
}


1		<?php declare(strict_types=1);
2
3		namespace PeeHaa\AsyncTwitter\Api;
4
5		use Amp\Artax\Response as HttpResponse;
6		use Amp\Promise;
7		use ExceptionalJSON\DecodeErrorException as JSONDecodeErrorException;
8		use PeeHaa\AsyncTwitter\Credentials\AccessToken;
9		use PeeHaa\AsyncTwitter\Credentials\Application;
10		use PeeHaa\AsyncTwitter\Http\Artax;
11		use PeeHaa\AsyncTwitter\Oauth\Header;
12		use PeeHaa\AsyncTwitter\Oauth\Parameters;
13		use PeeHaa\AsyncTwitter\Oauth\Signature\BaseString;
14		use PeeHaa\AsyncTwitter\Oauth\Signature\Key;
15		use PeeHaa\AsyncTwitter\Oauth\Signature\Signature;
16		use PeeHaa\AsyncTwitter\Request\Body;
17		use PeeHaa\AsyncTwitter\Request\Parameter;
18		use PeeHaa\AsyncTwitter\Request\Url;
19		use function Amp\resolve;
20		use function ExceptionalJSON\decode as json_try_decode;
21
22		class Client
23		{
24		private $httpClient;
25
26		private $applicationCredentials;
27
28		private $accessToken;
29
30		public function __construct(Artax $httpClient, Application $applicationCredentials, AccessToken $accessToken)
31		{
32		$this->httpClient = $httpClient;
33		$this->applicationCredentials = $applicationCredentials;
34		$this->accessToken = $accessToken;
35		}
36
37		public function request(Request $request): Promise
38		{
39		switch ($request->getMethod()) {
40		case 'POST':
41		return $this->post($request);
42
43		case 'GET':
44		return $this->get($request);
45
46		default:
47		throw new InvalidMethodException();
48		}
49		}
50
51		private function getErrorStringFromResponseBody(array $body)
52		{
53		if (!isset($body['errors'])) {
54		return ['Unknown error', -1, []];
55		}
56
57		$message = (string)($body['errors'][0]['message'] ?? 'Unknown error');
58		$code = (int)($body['errors'][0]['code'] ?? -1);
		0 ignored issues – show Coding Style introduced 2016-10-04 09:07 UTC by Report Bug Copy Issue Report Equals sign not aligned with surrounding assignments; expected 4 spaces but found 1 space This check looks for multiple assignments in successive lines of code. It will report an issue if the operators are not in a straight line. To visualize $a = "a"; $ab = "ab"; $abc = "abc"; will produce issues in the first and second line, while this second example $a = "a"; $ab = "ab"; $abc = "abc"; will produce no issues. Loading history...
59		$extra = [];
		0 ignored issues – show Coding Style introduced 2016-10-04 09:07 UTC by Report Bug Copy Issue Report Equals sign not aligned with surrounding assignments; expected 3 spaces but found 1 space This check looks for multiple assignments in successive lines of code. It will report an issue if the operators are not in a straight line. To visualize $a = "a"; $ab = "ab"; $abc = "abc"; will produce issues in the first and second line, while this second example $a = "a"; $ab = "ab"; $abc = "abc"; will produce no issues. Loading history...
60
61		for ($i = 1; isset($body['errors'][$i]); $i++) {
62		$extra[(int)($body['errors'][$i]['code'] ?? -1)] = (string)($body['errors'][$i]['message'] ?? 'Unknown error');
		0 ignored issues – show Coding Style introduced 2016-10-04 09:07 UTC by Report Bug Copy Issue Report This line exceeds maximum limit of 120 characters; contains 123 characters Overly long lines are hard to read on any screen. Most code styles therefor impose a maximum limit on the number of characters in a line. Loading history...
63		}
64
65		return [$message, $code, $extra];
66		}
67
68		// https://dev.twitter.com/overview/api/response-codes
69		private function throwFromErrorResponse(HttpResponse $response, array $body)
70		{
71		list($message, $code, $extra) = $this->getErrorStringFromResponseBody($body);
72
73		switch ($response->getStatus()) {
74		case 400: throw new BadRequestException($message, $code, null, $extra);
		0 ignored issues – show Coding Style introduced 2016-10-04 09:07 UTC by Report Bug Copy Issue Report `case` statements should be defined using a colon. As per the PSR-2 coding standard, case statements should not be wrapped in curly braces. There is no need for braces, since each case is terminated by the next `break`. There is also the option to use a semicolon instead of a colon, this is discouraged because many programmers do not even know it works and the colon is universal between programming languages. switch ($expr) { case "A": { //wrong doSomething(); break; } case "B"; //wrong doSomething(); break; case "C": //right doSomething(); break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
75		case 401: throw new UnauthorizedException($message, $code, null, $extra);
		0 ignored issues – show Coding Style introduced 2016-10-04 09:07 UTC by Report Bug Copy Issue Report `case` statements should be defined using a colon. As per the PSR-2 coding standard, case statements should not be wrapped in curly braces. There is no need for braces, since each case is terminated by the next `break`. There is also the option to use a semicolon instead of a colon, this is discouraged because many programmers do not even know it works and the colon is universal between programming languages. switch ($expr) { case "A": { //wrong doSomething(); break; } case "B"; //wrong doSomething(); break; case "C": //right doSomething(); break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
76		case 403: throw new ForbiddenException($message, $code, null, $extra);
		0 ignored issues – show Coding Style introduced 2016-10-04 09:07 UTC by Report Bug Copy Issue Report `case` statements should be defined using a colon. As per the PSR-2 coding standard, case statements should not be wrapped in curly braces. There is no need for braces, since each case is terminated by the next `break`. There is also the option to use a semicolon instead of a colon, this is discouraged because many programmers do not even know it works and the colon is universal between programming languages. switch ($expr) { case "A": { //wrong doSomething(); break; } case "B"; //wrong doSomething(); break; case "C": //right doSomething(); break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
77		case 404: throw new NotFoundException($message, $code, null, $extra);
		0 ignored issues – show Coding Style introduced 2016-10-04 09:07 UTC by Report Bug Copy Issue Report `case` statements should be defined using a colon. As per the PSR-2 coding standard, case statements should not be wrapped in curly braces. There is no need for braces, since each case is terminated by the next `break`. There is also the option to use a semicolon instead of a colon, this is discouraged because many programmers do not even know it works and the colon is universal between programming languages. switch ($expr) { case "A": { //wrong doSomething(); break; } case "B"; //wrong doSomething(); break; case "C": //right doSomething(); break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
78		case 406: throw new NotAcceptableException($message, $code, null, $extra);
		0 ignored issues – show Coding Style introduced 2016-10-04 09:07 UTC by Report Bug Copy Issue Report `case` statements should be defined using a colon. As per the PSR-2 coding standard, case statements should not be wrapped in curly braces. There is no need for braces, since each case is terminated by the next `break`. There is also the option to use a semicolon instead of a colon, this is discouraged because many programmers do not even know it works and the colon is universal between programming languages. switch ($expr) { case "A": { //wrong doSomething(); break; } case "B"; //wrong doSomething(); break; case "C": //right doSomething(); break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
79		case 410: throw new GoneException($message, $code, null, $extra);
		0 ignored issues – show Coding Style introduced 2016-10-04 09:07 UTC by Report Bug Copy Issue Report `case` statements should be defined using a colon. As per the PSR-2 coding standard, case statements should not be wrapped in curly braces. There is no need for braces, since each case is terminated by the next `break`. There is also the option to use a semicolon instead of a colon, this is discouraged because many programmers do not even know it works and the colon is universal between programming languages. switch ($expr) { case "A": { //wrong doSomething(); break; } case "B"; //wrong doSomething(); break; case "C": //right doSomething(); break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
80		case 420: throw new RateLimitTriggeredException($message, $code, null, $extra);
		0 ignored issues – show Coding Style introduced 2016-10-04 09:07 UTC by Report Bug Copy Issue Report `case` statements should be defined using a colon. As per the PSR-2 coding standard, case statements should not be wrapped in curly braces. There is no need for braces, since each case is terminated by the next `break`. There is also the option to use a semicolon instead of a colon, this is discouraged because many programmers do not even know it works and the colon is universal between programming languages. switch ($expr) { case "A": { //wrong doSomething(); break; } case "B"; //wrong doSomething(); break; case "C": //right doSomething(); break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
81		case 422: throw new UnprocessableEntityException($message, $code, null, $extra);
		0 ignored issues – show Coding Style introduced 2016-10-04 09:07 UTC by Report Bug Copy Issue Report `case` statements should be defined using a colon. As per the PSR-2 coding standard, case statements should not be wrapped in curly braces. There is no need for braces, since each case is terminated by the next `break`. There is also the option to use a semicolon instead of a colon, this is discouraged because many programmers do not even know it works and the colon is universal between programming languages. switch ($expr) { case "A": { //wrong doSomething(); break; } case "B"; //wrong doSomething(); break; case "C": //right doSomething(); break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
82		case 429: throw new RateLimitTriggeredException($message, $code, null, $extra);
		0 ignored issues – show Coding Style introduced 2016-10-04 09:07 UTC by Report Bug Copy Issue Report The case body in a switch statement must start on the line following the statement. According to the PSR-2, the body of a case statement must start on the line immediately following the case statement. switch ($expr) { case "A": doSomething(); //right break; case "B": doSomethingElse(); //wrong break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
83		case 500: throw new ServerErrorException($message, $code, null, $extra);
		0 ignored issues – show Coding Style introduced 2016-10-04 09:07 UTC by Report Bug Copy Issue Report The case body in a switch statement must start on the line following the statement. According to the PSR-2, the body of a case statement must start on the line immediately following the case statement. switch ($expr) { case "A": doSomething(); //right break; case "B": doSomethingElse(); //wrong break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history... Coding Style introduced 2016-10-04 09:07 UTC by Report Bug Copy Issue Report Terminating statement must be on a line by itself As per the PSR-2 coding standard, the `break` (or other terminating) statement must be on a line of its own. switch ($expr) { case "A": doSomething(); break; //wrong case "B": doSomething(); break; //right case "C:": doSomething(); return true; //right } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
84		case 502: throw new BadGatewayException($message, $code, null, $extra);
		0 ignored issues – show Coding Style introduced 2016-10-04 09:07 UTC by Report Bug Copy Issue Report The case body in a switch statement must start on the line following the statement. According to the PSR-2, the body of a case statement must start on the line immediately following the case statement. switch ($expr) { case "A": doSomething(); //right break; case "B": doSomethingElse(); //wrong break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history... Coding Style introduced 2016-10-04 09:07 UTC by Report Bug Copy Issue Report Terminating statement must be on a line by itself As per the PSR-2 coding standard, the `break` (or other terminating) statement must be on a line of its own. switch ($expr) { case "A": doSomething(); break; //wrong case "B": doSomething(); break; //right case "C:": doSomething(); return true; //right } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
85		case 503: throw new ServiceUnavailableException($message, $code, null, $extra);
		0 ignored issues – show Coding Style introduced 2016-10-04 09:07 UTC by Report Bug Copy Issue Report The case body in a switch statement must start on the line following the statement. According to the PSR-2, the body of a case statement must start on the line immediately following the case statement. switch ($expr) { case "A": doSomething(); //right break; case "B": doSomethingElse(); //wrong break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history... Coding Style introduced 2016-10-04 09:07 UTC by Report Bug Copy Issue Report Terminating statement must be on a line by itself As per the PSR-2 coding standard, the `break` (or other terminating) statement must be on a line of its own. switch ($expr) { case "A": doSomething(); break; //wrong case "B": doSomething(); break; //right case "C:": doSomething(); return true; //right } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
86		case 504: throw new GatewayTimeoutException($message, $code, null, $extra);
		0 ignored issues – show Coding Style introduced 2016-10-04 09:07 UTC by Report Bug Copy Issue Report The case body in a switch statement must start on the line following the statement. According to the PSR-2, the body of a case statement must start on the line immediately following the case statement. switch ($expr) { case "A": doSomething(); //right break; case "B": doSomethingElse(); //wrong break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history... Coding Style introduced 2016-10-04 09:07 UTC by Report Bug Copy Issue Report Terminating statement must be on a line by itself As per the PSR-2 coding standard, the `break` (or other terminating) statement must be on a line of its own. switch ($expr) { case "A": doSomething(); break; //wrong case "B": doSomething(); break; //right case "C:": doSomething(); return true; //right } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
87		}
88		}
89
90		private function handleResponse(Promise $responsePromise): Promise
91		{
92		return resolve(function() use($responsePromise) {
93		/** @var HttpResponse $response */
94		$response = yield $responsePromise;
95
96		try {
97		$decoded = json_try_decode($response->getBody(), true);
98		} catch (JSONDecodeErrorException $e) {
99		throw new RequestFailedException('Failed to decode response body as JSON', $e->getCode(), $e);
		0 ignored issues – show Documentation introduced 2016-10-04 09:07 UTC by Report Bug Copy Issue Report `$e` is of type `object<ExceptionalJSON\DecodeErrorException>`, but the function expects a `null\|object<Throwable>`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
100		}
101
102		$this->throwFromErrorResponse($response, $decoded);
103
104		return $decoded;
105		});
106		}
107
108	View Code Duplication	private function post(Request $request): Promise
		0 ignored issues – show Duplication introduced 2016-10-04 09:07 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
109		{
110		$header = $this->getHeader('POST', $request->getEndpoint(), ...$request->getParameters());
111
112		$response = $this->httpClient->post($request->getEndpoint(), $header, new Body(...$request->getParameters()));
113		return $this->handleResponse($response);
114		}
115
116	View Code Duplication	private function get(Request $request): Promise
		0 ignored issues – show Duplication introduced 2016-10-04 09:07 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
117		{
118		$header = $this->getHeader('GET', $request->getEndpoint(), ...$request->getParameters());
119
120		$response = $this->httpClient->get($request->getEndpoint(), $header, ...$request->getParameters());
121		return $this->handleResponse($response);
122		}
123
124		private function getHeader(string $method, Url $url, Parameter ...$parameters): Header
125		{
126		$oauthParameters = new Parameters($this->applicationCredentials, $this->accessToken, $url, ...$parameters);
127		$baseSignatureString = new BaseString($method, $url, $oauthParameters);
128		$signingKey = new Key($this->applicationCredentials, $this->accessToken);
129		$signature = new Signature($baseSignatureString, $signingKey);
130
131		return new Header($oauthParameters, $signature);
132		}
133		}
134

PeeHaa / AsyncTwitter

Pull Request — master (#3)

Client::getErrorStringFromResponseBody() A

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