ggoffy /
wggithub
| Total Complexity | 78 |
| Total Lines | 599 |
| Duplicated Lines | 0 % |
| Changes | 1 | ||
| Bugs | 1 | Features | 0 |
Complex classes like Api 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.
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 Api, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 13 | class Api extends Sanity |
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| 14 | {
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| 15 | /** @var string */ |
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| 16 | private $url = 'https://api.github.com'; |
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| 17 | |||
| 18 | /** @var string */ |
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| 19 | private $defaultAccept = 'application/vnd.github.v3+json'; |
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| 20 | |||
| 21 | /** @var array|NULL */ |
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| 22 | private $defaultParameters = []; |
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| 23 | |||
| 24 | /** @var Http\IClient */ |
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| 25 | private $client; |
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| 26 | |||
| 27 | /** @var OAuth\Token|NULL */ |
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| 28 | private $token; |
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| 29 | |||
| 30 | |||
| 31 | public function __construct(Http\IClient $client = NULL) |
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| 34 | } |
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| 35 | |||
| 36 | |||
| 37 | /** |
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| 38 | * @param OAuth\Token|null $token |
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| 39 | * @return self |
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| 40 | */ |
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| 41 | public function setToken(OAuth\Token $token = NULL) |
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| 42 | {
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| 43 | $this->token = $token; |
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| 44 | return $this; |
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| 45 | } |
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| 46 | |||
| 47 | |||
| 48 | /** |
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| 49 | * @return OAuth\Token|NULL |
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| 50 | */ |
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| 51 | public function getToken() |
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| 52 | {
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| 53 | return $this->token; |
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| 54 | } |
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| 55 | |||
| 56 | |||
| 57 | /** |
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| 58 | * @param array |
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| 59 | * @return self |
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| 60 | */ |
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| 61 | public function setDefaultParameters(array $defaults = NULL) |
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| 62 | {
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| 63 | $this->defaultParameters = $defaults ?: []; |
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| 64 | return $this; |
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| 65 | } |
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| 66 | |||
| 67 | |||
| 68 | /** |
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| 69 | * @return array |
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| 70 | */ |
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| 71 | public function getDefaultParameters() |
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| 72 | {
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| 73 | return $this->defaultParameters; |
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| 74 | } |
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| 75 | |||
| 76 | |||
| 77 | /** |
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| 78 | * @param string |
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| 79 | * @return self |
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| 80 | */ |
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| 81 | public function setDefaultAccept($accept) |
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| 82 | {
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| 83 | $this->defaultAccept = $accept; |
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| 84 | return $this; |
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| 85 | } |
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| 86 | |||
| 87 | |||
| 88 | /** |
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| 89 | * @return string |
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| 90 | */ |
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| 91 | public function getDefaultAccept() |
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| 94 | } |
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| 95 | |||
| 96 | |||
| 97 | /** |
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| 98 | * @see createRequest() |
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| 99 | * @see request() |
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| 100 | * |
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| 101 | * @param string |
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| 102 | * @param array $parameters |
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| 103 | * @param array $headers |
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| 104 | * @return Http\Response |
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| 105 | * |
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| 106 | */ |
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| 107 | public function delete($urlPath, array $parameters = [], array $headers = []) |
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| 108 | {
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| 109 | return $this->request( |
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| 110 | $this->createRequest(Http\Request::DELETE, $urlPath, $parameters, $headers) |
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| 111 | ); |
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| 112 | } |
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| 113 | |||
| 114 | |||
| 115 | /** |
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| 116 | * @see createRequest() |
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| 117 | * @see request() |
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| 118 | * |
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| 119 | * @param string |
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| 120 | * @param array $parameters |
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| 121 | * @param array $headers |
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| 122 | * @return Http\Response |
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| 123 | * |
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| 124 | */ |
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| 125 | public function get($urlPath, array $parameters = [], array $headers = []) |
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| 126 | {
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| 127 | return $this->request( |
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| 128 | $this->createRequest(Http\Request::GET, $urlPath, $parameters, $headers) |
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| 129 | ); |
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| 130 | } |
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| 131 | |||
| 132 | |||
| 133 | /** |
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| 134 | * @see createRequest() |
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| 135 | * @see request() |
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| 136 | * |
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| 137 | * @param string |
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| 138 | * @param array $parameters |
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| 139 | * @param array $headers |
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| 140 | * @return Http\Response |
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| 141 | * |
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| 142 | */ |
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| 143 | public function head($urlPath, array $parameters = [], array $headers = []) |
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| 144 | {
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| 145 | return $this->request( |
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| 146 | $this->createRequest(Http\Request::HEAD, $urlPath, $parameters, $headers) |
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| 147 | ); |
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| 148 | } |
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| 149 | |||
| 150 | |||
| 151 | /** |
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| 152 | * @see createRequest() |
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| 153 | * @see request() |
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| 154 | * |
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| 155 | * @param $urlPath |
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| 156 | * @param $content |
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| 157 | * @param array $parameters |
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| 158 | * @param array $headers |
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| 159 | * @return Http\Response |
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| 160 | * |
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| 161 | */ |
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| 162 | public function patch($urlPath, $content, array $parameters = [], array $headers = []) |
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| 163 | {
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| 164 | return $this->request( |
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| 165 | $this->createRequest(Http\Request::PATCH, $urlPath, $parameters, $headers, $content) |
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| 166 | ); |
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| 167 | } |
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| 168 | |||
| 169 | |||
| 170 | /** |
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| 171 | * @see createRequest() |
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| 172 | * @see request() |
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| 173 | * |
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| 174 | * @param $urlPath |
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| 175 | * @param $content |
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| 176 | * @param array $parameters |
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| 177 | * @param array $headers |
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| 178 | * @return Http\Response |
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| 179 | * |
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| 180 | */ |
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| 181 | public function post($urlPath, $content, array $parameters = [], array $headers = []) |
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| 182 | {
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| 183 | return $this->request( |
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| 184 | $this->createRequest(Http\Request::POST, $urlPath, $parameters, $headers, $content) |
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| 185 | ); |
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| 186 | } |
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| 187 | |||
| 188 | |||
| 189 | /** |
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| 190 | * @see createRequest() |
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| 191 | * @see request() |
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| 192 | * |
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| 193 | * @param $urlPath |
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| 194 | * @param $content |
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| 195 | * @param array $parameters |
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| 196 | * @param array $headers |
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| 197 | * @return Http\Response |
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| 198 | * |
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| 199 | */ |
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| 200 | public function put($urlPath, $content = NULL, array $parameters = [], array $headers = []) |
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| 201 | {
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| 202 | return $this->request( |
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| 203 | $this->createRequest(Http\Request::PUT, $urlPath, $parameters, $headers, $content) |
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| 204 | ); |
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| 205 | } |
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| 206 | |||
| 207 | |||
| 208 | /** |
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| 209 | * @param Http\Request $request |
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| 210 | * @return Http\Response |
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| 211 | * |
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| 212 | */ |
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| 213 | public function request(Http\Request $request) |
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| 214 | {
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| 215 | $request = clone $request; |
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| 216 | |||
| 217 | $request->addHeader('Accept', $this->defaultAccept);
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| 218 | $request->addHeader('Time-Zone', date_default_timezone_get());
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| 219 | $request->addHeader('User-Agent', 'milo/github-api');
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| 220 | |||
| 221 | if ($this->token) {
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| 222 | /** @todo Distinguish token type? */ |
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| 223 | $request->addHeader('Authorization', "token {$this->token->getValue()}");
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| 224 | } |
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| 225 | |||
| 226 | return $this->client->request($request); |
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| 227 | } |
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| 228 | |||
| 229 | |||
| 230 | /** |
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| 231 | * @param string Http\Request::GET|POST|... |
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| 232 | * @param string path like '/users/:user/repos' where ':user' is substitution |
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| 233 | * @param array[name => value] replaces substitutions in $urlPath, the rest is appended as query string to URL |
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|
Documentation
Bug
introduced
by
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| 234 | * @param array[name => value] name is case-insensitive |
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| 235 | * @param mixed|NULL arrays and objects are encoded to JSON and Content-Type is set |
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| 236 | * @return Http\Request |
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| 237 | * |
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| 238 | * @throws MissingParameterException when substitution is used in URL but parameter is missing |
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| 239 | * @throws JsonException when encoding to JSON fails |
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| 240 | */ |
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| 241 | public function createRequest($method, $urlPath, array $parameters = [], array $headers = [], $content = NULL) |
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| 242 | {
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| 243 | if (stripos($urlPath, $this->url) === 0) { # Allows non-HTTPS URLs
|
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| 244 | $baseUrl = $this->url; |
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| 245 | $urlPath = \substr($urlPath, \strlen($this->url)); |
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| 246 | |||
| 247 | } elseif (\preg_match('#^(https://[^/]+)(/.*)?$#', $urlPath, $m)) {
|
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| 248 | $baseUrl = $m[1]; |
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| 249 | $urlPath = isset($m[2]) ? $m[2] : ''; |
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| 250 | |||
| 251 | } else {
|
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| 252 | $baseUrl = $this->url; |
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| 253 | } |
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| 254 | |||
| 255 | if (\strpos($urlPath, '{') === FALSE) {
|
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| 256 | $urlPath = $this->expandColonParameters($urlPath, $parameters, $this->defaultParameters); |
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| 257 | } else {
|
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| 258 | $urlPath = $this->expandUriTemplate($urlPath, $parameters, $this->defaultParameters); |
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| 259 | } |
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| 260 | |||
| 261 | $url = \rtrim($baseUrl, '/') . '/' . \ltrim($urlPath, '/'); |
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| 262 | |||
| 263 | if ($content !== NULL && (\is_array($content) || \is_object($content))) {
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| 264 | $headers['Content-Type'] = 'application/json; charset=utf-8'; |
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| 265 | $content = Helpers::jsonEncode($content); |
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| 266 | } |
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| 267 | |||
| 268 | return new Http\Request($method, $url, $headers, $content); |
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| 269 | } |
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| 270 | |||
| 271 | |||
| 272 | /** |
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| 273 | * @param Http\Response |
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| 274 | * @param array|NULL these codes are treated as success; code < 300 if NULL |
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| 275 | * @return mixed |
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| 276 | * |
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| 277 | * @throws ApiException |
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| 278 | */ |
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| 279 | public function decode(Http\Response $response, array $okCodes = NULL) |
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| 280 | {
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| 281 | $content = $response->getContent(); |
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| 282 | if (\preg_match('~application/json~i', $response->getHeader('Content-Type', ''))) {
|
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| 283 | try {
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| 284 | $content = Helpers::jsonDecode($response->getContent(), true); |
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| 285 | } catch (JsonException $e) {
|
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| 286 | throw new InvalidResponseException('JSON decoding failed.', 0, $e, $response);
|
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| 287 | } |
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| 288 | |||
| 289 | if (!\is_array($content) && !\is_object($content)) {
|
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| 290 | throw new InvalidResponseException('Decoded JSON is not an array or object.', 0, NULL, $response);
|
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| 291 | } |
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| 292 | } |
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| 293 | |||
| 294 | $code = $response->getCode(); |
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| 295 | if (($okCodes === NULL && $code >= 300) || (\is_array($okCodes) && !\in_array($code, $okCodes))) {
|
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| 296 | /** @var $content \stdClass */ |
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| 297 | switch ($code) {
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| 298 | case Http\Response::S400_BAD_REQUEST: |
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| 299 | throw new BadRequestException(self::errorMessage($content), $code, NULL, $response); |
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| 300 | |||
| 301 | case Http\Response::S401_UNAUTHORIZED: |
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| 302 | throw new UnauthorizedException(self::errorMessage($content), $code, NULL, $response); |
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| 303 | |||
| 304 | case Http\Response::S403_FORBIDDEN: |
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| 305 | if ($response->getHeader('X-RateLimit-Remaining') === '0') {
|
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| 306 | throw new RateLimitExceedException(self::errorMessage($content), $code, NULL, $response); |
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| 307 | } |
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| 308 | throw new ForbiddenException(self::errorMessage($content), $code, NULL, $response); |
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| 309 | |||
| 310 | case Http\Response::S404_NOT_FOUND: |
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| 311 | throw new NotFoundException('Resource not found or not authorized to access.', $code, NULL, $response);
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| 312 | |||
| 313 | case Http\Response::S422_UNPROCESSABLE_ENTITY: |
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| 314 | throw new UnprocessableEntityException(self::errorMessage($content), $code, NULL, $response); |
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| 315 | } |
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| 316 | |||
| 317 | $message = $okCodes === NULL ? '< 300' : \implode(' or ', $okCodes);
|
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| 318 | throw new UnexpectedResponseException("Expected response with code $message.", $code, NULL, $response);
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| 319 | } |
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| 320 | |||
| 321 | return $content; |
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| 322 | } |
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| 323 | |||
| 324 | |||
| 325 | /** |
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| 326 | * Creates paginator for HTTP GET requests. |
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| 327 | * |
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| 328 | * @see get() |
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| 329 | * |
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| 330 | * @param string |
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| 331 | * @param array $parameters |
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| 332 | * @param array $headers |
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| 333 | * @return Paginator |
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| 334 | * |
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| 335 | */ |
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| 336 | public function paginator($urlPath, array $parameters = [], array $headers = []) |
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| 337 | {
|
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| 338 | return new Paginator( |
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| 339 | $this, |
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| 340 | $this->createRequest(Http\Request::GET, $urlPath, $parameters, $headers) |
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| 341 | ); |
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| 342 | } |
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| 343 | |||
| 344 | |||
| 345 | /** |
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| 346 | * @return Http\IClient |
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| 347 | */ |
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| 348 | public function getClient() |
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| 349 | {
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| 350 | return $this->client; |
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| 351 | } |
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| 352 | |||
| 353 | |||
| 354 | /** |
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| 355 | * @param string |
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| 356 | * @return Api |
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| 357 | */ |
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| 358 | public function withUrl($url) |
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| 359 | {
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| 360 | $api = clone $this; |
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| 361 | $api->setUrl($url); |
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| 362 | return $api; |
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| 363 | } |
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| 364 | |||
| 365 | |||
| 366 | /** |
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| 367 | * @param string |
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| 368 | * @return self |
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| 369 | */ |
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| 370 | public function setUrl($url) |
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| 374 | } |
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| 375 | |||
| 376 | |||
| 377 | /** |
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| 378 | * @return string |
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| 379 | */ |
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| 380 | public function getUrl() |
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| 383 | } |
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| 384 | |||
| 385 | |||
| 386 | /** |
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| 387 | * @param string |
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| 388 | * @param array $parameters |
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| 389 | * @param array $defaultParameters |
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| 390 | * @return string |
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| 391 | * |
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| 392 | */ |
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| 393 | protected function expandColonParameters($url, array $parameters, array $defaultParameters) |
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| 394 | {
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| 395 | $parameters += $defaultParameters; |
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| 396 | |||
| 397 | $url = preg_replace_callback('#(^|/|\.):([^/.]+)#', function($m) use ($url, & $parameters) {
|
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| 398 | if (!isset($parameters[$m[2]])) {
|
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| 399 | throw new MissingParameterException("Missing parameter '$m[2]' for URL path '$url'.");
|
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| 400 | } |
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| 401 | $parameter = $parameters[$m[2]]; |
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| 402 | unset($parameters[$m[2]]); |
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| 403 | return $m[1] . rawurlencode($parameter); |
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| 404 | }, $url); |
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| 405 | |||
| 406 | $url = \rtrim($url, '/'); |
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| 407 | |||
| 408 | if (\count($parameters)) {
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| 409 | $url .= '?' . \http_build_query($parameters); |
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| 410 | } |
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| 411 | |||
| 412 | return $url; |
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| 413 | } |
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| 414 | |||
| 415 | |||
| 416 | /** |
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| 417 | * Expands URI template (RFC 6570). |
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| 418 | * |
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| 419 | * @see http://tools.ietf.org/html/rfc6570 |
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| 420 | * @todo Inject remaining default parameters into query string? |
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| 421 | * |
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| 422 | * @param string |
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| 423 | * @param array $parameters |
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| 424 | * @param array $defaultParameters |
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| 425 | * @return string |
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| 426 | */ |
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| 427 | protected function expandUriTemplate($url, array $parameters, array $defaultParameters) |
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| 428 | {
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| 429 | $parameters += $defaultParameters; |
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| 430 | |||
| 431 | static $operatorFlags = [ |
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| 432 | '' => ['prefix' => '', 'separator' => ',', 'named' => FALSE, 'ifEmpty' => '', 'reserved' => FALSE], |
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| 433 | '+' => ['prefix' => '', 'separator' => ',', 'named' => FALSE, 'ifEmpty' => '', 'reserved' => TRUE], |
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| 434 | '#' => ['prefix' => '#', 'separator' => ',', 'named' => FALSE, 'ifEmpty' => '', 'reserved' => TRUE], |
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| 435 | '.' => ['prefix' => '.', 'separator' => '.', 'named' => FALSE, 'ifEmpty' => '', 'reserved' => FALSE], |
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| 436 | '/' => ['prefix' => '/', 'separator' => '/', 'named' => FALSE, 'ifEmpty' => '', 'reserved' => FALSE], |
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| 437 | ';' => ['prefix' => ';', 'separator' => ';', 'named' => TRUE, 'ifEmpty' => '', 'reserved' => FALSE], |
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| 438 | '?' => ['prefix' => '?', 'separator' => '&', 'named' => TRUE, 'ifEmpty' => '=', 'reserved' => FALSE], |
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| 439 | '&' => ['prefix' => '&', 'separator' => '&', 'named' => TRUE, 'ifEmpty' => '=', 'reserved' => FALSE], |
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| 440 | ]; |
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| 441 | |||
| 442 | return preg_replace_callback('~{([+#./;?&])?([^}]+?)}~', function($m) use ($url, & $parameters, $operatorFlags) {
|
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| 443 | $flags = $operatorFlags[$m[1]]; |
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| 444 | |||
| 445 | $translated = []; |
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| 446 | foreach (\explode(',', $m[2]) as $name) {
|
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| 447 | $explode = FALSE; |
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| 448 | $maxLength = NULL; |
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| 449 | if (\preg_match('~^(.+)(?:(\*)|:(\d+))$~', $name, $tmp)) { // TODO: Speed up?
|
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| 450 | $name = $tmp[1]; |
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| 451 | if (isset($tmp[3])) {
|
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| 452 | $maxLength = (int) $tmp[3]; |
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| 453 | } else {
|
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| 454 | $explode = TRUE; |
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| 455 | } |
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| 456 | } |
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| 457 | |||
| 458 | if (!isset($parameters[$name])) { // TODO: Throw exception?
|
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| 459 | continue; |
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| 460 | } |
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| 461 | |||
| 462 | $value = $parameters[$name]; |
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| 463 | if (is_scalar($value)) {
|
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| 464 | $translated[] = $this->prefix($flags, $name, $this->escape($flags, $value, $maxLength)); |
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| 465 | |||
| 466 | } else {
|
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| 467 | $value = (array) $value; |
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| 468 | $isAssoc = key($value) !== 0; |
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| 469 | |||
| 470 | // The '*' (explode) modifier |
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| 471 | if ($explode) {
|
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| 472 | $parts = []; |
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| 473 | if ($isAssoc) {
|
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| 474 | $this->walk($value, function ($v, $k) use (& $parts, $flags, $maxLength) {
|
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| 475 | $parts[] = $this->prefix(['named' => TRUE] + $flags, $k, $this->escape($flags, $v, $maxLength)); |
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| 476 | }); |
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| 477 | |||
| 478 | } elseif ($flags['named']) {
|
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| 479 | $this->walk($value, function ($v) use (& $parts, $flags, $name, $maxLength) {
|
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| 480 | $parts[] = $this->prefix($flags, $name, $this->escape($flags, $v, $maxLength)); |
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| 481 | }); |
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| 482 | |||
| 483 | } else {
|
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| 484 | $this->walk($value, function ($v) use (& $parts, $flags, $maxLength) {
|
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| 485 | $parts[] = $this->escape($flags, $v, $maxLength); |
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| 486 | }); |
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| 487 | } |
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| 488 | |||
| 489 | if (isset($parts[0])) {
|
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| 490 | if ($flags['named']) {
|
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| 491 | $translated[] = \implode($flags['separator'], $parts); |
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| 492 | } else {
|
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| 493 | $translated[] = $this->prefix($flags, $name, \implode($flags['separator'], $parts)); |
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| 494 | } |
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| 495 | } |
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| 496 | |||
| 497 | } else {
|
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| 498 | $parts = []; |
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| 499 | $this->walk($value, function($v, $k) use (& $parts, $isAssoc, $flags, $maxLength) {
|
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| 500 | if ($isAssoc) {
|
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| 501 | $parts[] = $this->escape($flags, $k); |
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| 502 | } |
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| 503 | |||
| 504 | $parts[] = $this->escape($flags, $v, $maxLength); |
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| 505 | }); |
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| 506 | |||
| 507 | if (isset($parts[0])) {
|
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| 508 | $translated[] = $this->prefix($flags, $name, \implode(',', $parts));
|
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| 509 | } |
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| 510 | } |
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| 511 | } |
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| 512 | } |
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| 513 | |||
| 514 | if (isset($translated[0])) {
|
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| 515 | return $flags['prefix'] . \implode($flags['separator'], $translated); |
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| 516 | } |
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| 517 | |||
| 518 | return ''; |
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| 519 | }, $url); |
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| 520 | } |
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| 521 | |||
| 522 | |||
| 523 | /** |
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| 524 | * @param array |
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| 525 | * @param string |
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| 526 | * @param string already escaped |
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| 527 | * @return string |
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| 528 | */ |
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| 529 | private function prefix(array $flags, $name, $value) |
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| 542 | } |
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| 543 | |||
| 544 | |||
| 545 | /** |
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| 546 | * @param array |
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| 547 | * @param mixed |
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| 548 | * @param int|NULL |
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| 549 | * @return string |
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| 550 | */ |
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| 551 | private function escape(array $flags, $value, $maxLength = NULL) |
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| 552 | {
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| 553 | $value = (string) $value; |
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| 554 | |||
| 555 | if ($maxLength !== NULL) {
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| 556 | if (\preg_match('~^(.{' . $maxLength . '}).~u', $value, $m)) {
|
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| 557 | $value = $m[1]; |
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| 558 | } elseif (\strlen($value) > $maxLength) { # when malformed UTF-8
|
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| 559 | $value = \substr($value, 0, $maxLength); |
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| 560 | } |
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| 561 | } |
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| 562 | |||
| 563 | if ($flags['reserved']) {
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| 564 | $parts = preg_split('~(%[0-9a-fA-F]{2}|[:/?#[\]@!$&\'()*+,;=])~', $value, -1, PREG_SPLIT_DELIM_CAPTURE);
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| 565 | $parts[] = ''; |
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| 566 | |||
| 567 | $escaped = ''; |
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| 568 | for ($i = 0, $count = \count($parts); $i < $count; $i += 2) {
|
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| 569 | $escaped .= rawurlencode($parts[$i]) . $parts[$i + 1]; |
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| 570 | } |
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| 571 | |||
| 572 | return $escaped; |
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| 573 | } |
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| 574 | |||
| 575 | return rawurlencode($value); |
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| 576 | } |
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| 577 | |||
| 578 | |||
| 579 | /** |
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| 580 | * @param array |
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| 581 | * @param callable |
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| 582 | */ |
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| 583 | private function walk(array $array, $cb) |
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| 584 | {
|
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| 585 | foreach ($array as $k => $v) {
|
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| 586 | if ($v === NULL) {
|
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| 587 | continue; |
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| 588 | } |
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| 589 | |||
| 590 | $cb($v, $k); |
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| 591 | } |
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| 592 | } |
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| 593 | |||
| 594 | |||
| 595 | /** |
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| 596 | * @param \stdClass |
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| 597 | * @return string |
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| 598 | */ |
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| 599 | private static function errorMessage($content) |
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| 612 | } |
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| 613 | |||
| 614 | } |
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| 615 |
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