hirak /
prestissimo
Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like BaseRequest often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use BaseRequest, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 12 | class BaseRequest |
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| 13 | { |
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| 14 | private $scheme; |
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| 15 | private $user; |
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| 16 | private $pass; |
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| 17 | private $host; |
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| 18 | private $port; |
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| 19 | private $path; |
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| 20 | private $query = array(); |
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| 21 | |||
| 22 | /** @var [string => string] */ |
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| 23 | private $headers = array(); |
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| 24 | |||
| 25 | private $capath; |
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| 26 | private $cafile; |
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| 27 | |||
| 28 | protected static $defaultCurlOptions = array(); |
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| 29 | |||
| 30 | private static $NSS_CIPHERS = array( |
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| 31 | 'rsa_3des_sha', |
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| 32 | 'rsa_des_sha', |
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| 33 | 'rsa_null_md5', |
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| 34 | 'rsa_null_sha', |
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| 35 | 'rsa_rc2_40_md5', |
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| 36 | 'rsa_rc4_128_md5', |
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| 37 | 'rsa_rc4_128_sha', |
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| 38 | 'rsa_rc4_40_md5', |
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| 39 | 'fips_des_sha', |
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| 40 | 'fips_3des_sha', |
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| 41 | 'rsa_des_56_sha', |
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| 42 | 'rsa_rc4_56_sha', |
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| 43 | 'rsa_aes_128_sha', |
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| 44 | 'rsa_aes_256_sha', |
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| 45 | 'rsa_aes_128_gcm_sha_256', |
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| 46 | 'dhe_rsa_aes_128_gcm_sha_256', |
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| 47 | 'ecdh_ecdsa_null_sha', |
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| 48 | 'ecdh_ecdsa_rc4_128_sha', |
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| 49 | 'ecdh_ecdsa_3des_sha', |
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| 50 | 'ecdh_ecdsa_aes_128_sha', |
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| 51 | 'ecdh_ecdsa_aes_256_sha', |
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| 52 | 'ecdhe_ecdsa_null_sha', |
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| 53 | 'ecdhe_ecdsa_rc4_128_sha', |
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| 54 | 'ecdhe_ecdsa_3des_sha', |
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| 55 | 'ecdhe_ecdsa_aes_128_sha', |
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| 56 | 'ecdhe_ecdsa_aes_256_sha', |
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| 57 | 'ecdh_rsa_null_sha', |
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| 58 | 'ecdh_rsa_128_sha', |
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| 59 | 'ecdh_rsa_3des_sha', |
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| 60 | 'ecdh_rsa_aes_128_sha', |
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| 61 | 'ecdh_rsa_aes_256_sha', |
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| 62 | 'echde_rsa_null', |
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| 63 | 'ecdhe_rsa_rc4_128_sha', |
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| 64 | 'ecdhe_rsa_3des_sha', |
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| 65 | 'ecdhe_rsa_aes_128_sha', |
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| 66 | 'ecdhe_rsa_aes_256_sha', |
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| 67 | 'ecdhe_ecdsa_aes_128_gcm_sha_256', |
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| 68 | 'ecdhe_rsa_aes_128_gcm_sha_256', |
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| 69 | ); |
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| 70 | |||
| 71 | /** |
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| 72 | * enable ECC cipher suites in cURL/NSS |
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| 73 | * @codeCoverageIgnore |
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| 74 | */ |
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| 75 | public static function nssCiphers() |
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| 76 | { |
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| 77 | static $cache; |
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| 78 | if (isset($cache)) { |
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| 79 | return $cache; |
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| 80 | } |
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| 81 | $ver = curl_version(); |
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| 82 | if (preg_match('/^NSS.*Basic ECC$/', $ver['ssl_version'])) { |
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| 83 | return $cache = implode(',', self::$NSS_CIPHERS); |
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| 84 | } |
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| 85 | return $cache = false; |
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| 86 | } |
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| 87 | |||
| 88 | 4 | protected function getProxy($url) |
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| 89 | { |
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| 90 | 4 | if (isset($_SERVER['no_proxy'])) { |
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| 91 | 1 | $pattern = new Util\NoProxyPattern($_SERVER['no_proxy']); |
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| 92 | 1 | if ($pattern->test($url)) { |
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| 93 | 1 | return null; |
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| 94 | } |
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| 95 | 1 | } |
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| 96 | |||
| 97 | 4 | foreach (array('https', 'http') as $scheme) { |
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| 98 | 4 | if ($this->scheme === $scheme) { |
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| 99 | 4 | $label = $scheme . '_proxy'; |
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| 100 | 4 | foreach (array(strtoupper($label), $label) as $l) { |
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| 101 | 4 | if (isset($_SERVER[$l])) { |
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| 102 | 1 | return $_SERVER[$l]; |
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| 103 | } |
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| 104 | 3 | } |
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| 105 | 3 | } |
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| 106 | 4 | } |
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| 107 | 3 | return null; |
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| 108 | } |
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| 109 | |||
| 110 | /** |
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| 111 | * @param $io |
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| 112 | * @param bool $useRedirector |
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| 113 | * @param $githubDomains |
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| 114 | * @param $gitlabDomains |
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| 115 | */ |
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| 116 | 6 | protected function setupAuthentication(IO\IOInterface $io, $useRedirector, array $githubDomains, array $gitlabDomains) |
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| 117 | { |
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| 118 | 6 | if (preg_match('/\.github\.com$/', $this->host)) { |
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| 119 | 1 | $authKey = 'github.com'; |
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| 120 | 1 | if ($useRedirector) { |
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| 121 | 1 | if ($this->host === 'api.github.com' && preg_match('%^/repos(/[^/]+/[^/]+/)zipball(.+)$%', $this->path, $_)) { |
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| 122 | 1 | $this->host = 'codeload.github.com'; |
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| 123 | 1 | $this->path = $_[1] . 'legacy.zip' . $_[2]; |
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| 124 | 1 | } |
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| 125 | 1 | } |
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| 126 | 1 | } else { |
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| 127 | 5 | $authKey = $this->host; |
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| 128 | } |
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| 129 | 6 | if (!$io->hasAuthentication($authKey)) { |
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| 130 | 4 | if ($this->user || $this->pass) { |
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| 131 | 1 | $io->setAuthentication($authKey, $this->user, $this->pass); |
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| 132 | 1 | } else { |
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| 133 | 3 | return; |
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| 134 | } |
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| 135 | 1 | } |
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| 136 | |||
| 137 | 3 | $auth = $io->getAuthentication($authKey); |
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| 138 | |||
| 139 | // is github |
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| 140 | 3 | if (in_array($authKey, $githubDomains) && 'x-oauth-basic' === $auth['password']) { |
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| 141 | 1 | $this->addParam('access_token', $auth['username']); |
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| 142 | 1 | $this->user = $this->pass = null; |
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| 143 | 1 | return; |
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| 144 | } |
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| 145 | // is gitlab |
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| 146 | 2 | if (in_array($authKey, $gitlabDomains) && 'oauth2' === $auth['password']) { |
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| 147 | 1 | $this->addHeader('authorization', 'Bearer ' . $auth['username']); |
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| 148 | 1 | $this->user = $this->pass = null; |
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| 149 | 1 | return; |
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| 150 | } |
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| 151 | // others, includes bitbucket |
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| 152 | 1 | $this->user = $auth['username']; |
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| 153 | 1 | $this->pass = $auth['password']; |
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| 154 | 1 | } |
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| 155 | |||
| 156 | /** |
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| 157 | * @return array |
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| 158 | */ |
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| 159 | 4 | public function getCurlOptions() |
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| 160 | { |
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| 161 | 4 | $headers = array(); |
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| 162 | 4 | foreach ($this->headers as $key => $val) { |
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| 163 | 1 | $headers[] = strtr(ucwords(strtr($key, '-', ' ')), ' ', '-') . ': ' . $val; |
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| 164 | 4 | } |
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| 165 | |||
| 166 | 4 | $url = $this->getURL(); |
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| 167 | |||
| 168 | $curlOpts = array( |
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| 169 | 4 | CURLOPT_URL => $url, |
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| 170 | 4 | CURLOPT_HTTPHEADER => $headers, |
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| 171 | 4 | CURLOPT_USERAGENT => ConfigFacade::getUserAgent(), |
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| 172 | //CURLOPT_VERBOSE => true, //for debug |
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| 173 | 4 | ); |
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| 174 | 4 | $curlOpts += static::$defaultCurlOptions; |
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| 175 | |||
| 176 | // @codeCoverageIgnoreStart |
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| 177 | if ($ciphers = $this->nssCiphers()) { |
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| 178 | $curlOpts[CURLOPT_SSL_CIPHER_LIST] = $ciphers; |
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| 179 | } |
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| 180 | // @codeCoverageIgnoreEnd |
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| 181 | 4 | if ($proxy = $this->getProxy($url)) { |
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| 182 | 1 | $curlOpts[CURLOPT_PROXY] = $proxy; |
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| 183 | 1 | } |
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| 184 | 4 | if ($this->capath) { |
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| 185 | 1 | $curlOpts[CURLOPT_CAPATH] = $this->capath; |
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| 186 | 1 | } |
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| 187 | 4 | if ($this->cafile) { |
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| 188 | 1 | $curlOpts[CURLOPT_CAINFO] = $this->cafile; |
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| 189 | 1 | } |
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| 190 | |||
| 191 | 4 | return $curlOpts; |
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| 192 | } |
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| 193 | |||
| 194 | /** |
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| 195 | * @return string |
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| 196 | */ |
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| 197 | 7 | public function getURL() |
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| 198 | { |
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| 199 | 7 | $url = self::ifOr($this->scheme, '', '://'); |
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| 200 | 7 | if ($this->user) { |
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| 201 | 1 | $user = $this->user; |
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| 202 | 1 | $user .= self::ifOr($this->pass, ':'); |
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| 203 | 1 | $url .= $user . '@'; |
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| 204 | 1 | } |
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| 205 | 7 | $url .= self::ifOr($this->host); |
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| 206 | 7 | $url .= self::ifOr($this->port, ':'); |
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| 207 | 7 | $url .= self::ifOr($this->path); |
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| 208 | 7 | $url .= self::ifOr(http_build_query($this->query), '?'); |
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| 209 | 7 | return $url; |
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| 210 | } |
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| 211 | |||
| 212 | /** |
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| 213 | * @return string user/pass/access_token masked url |
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| 214 | */ |
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| 215 | 1 | View Code Duplication | public function getMaskedURL() |
| 223 | |||
| 224 | /** |
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| 225 | * @return string |
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| 226 | */ |
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| 227 | 2 | View Code Duplication | public function getOriginURL() |
| 228 | { |
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| 229 | 2 | $url = self::ifOr($this->scheme, '', '://'); |
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| 230 | 2 | $url .= self::ifOr($this->host); |
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| 231 | 2 | $url .= self::ifOr($this->port, ':'); |
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| 232 | 2 | return $url; |
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| 233 | } |
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| 234 | |||
| 235 | 9 | private static function ifOr($str, $pre = '', $post = '') |
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| 242 | |||
| 243 | /** |
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| 244 | * @param string $url |
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| 245 | */ |
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| 246 | 11 | public function setURL($url) |
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| 247 | { |
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| 248 | 11 | $struct = parse_url($url); |
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| 249 | 11 | foreach ($struct as $key => $val) { |
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| 250 | 11 | if ($key === 'query') { |
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| 251 | 4 | parse_str($val, $this->query); |
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| 252 | 4 | } else { |
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| 253 | 11 | $this->$key = $val; |
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| 254 | } |
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| 255 | 11 | } |
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| 256 | 11 | } |
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| 257 | |||
| 258 | 1 | public function addParam($key, $val) |
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| 262 | |||
| 263 | 1 | public function addHeader($key, $val) |
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| 267 | |||
| 268 | 7 | public function setCA($path = null, $file = null) |
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| 273 | |||
| 274 | 1 | public function isHTTP() |
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| 275 | { |
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| 276 | 1 | return $this->scheme === 'http' || $this->scheme === 'https'; |
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| 277 | } |
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| 278 | } |
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| 279 |
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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: