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Proper URL serialization [closes #30]
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,185 @@ | ||
| <?php | ||
| namespace rtens\domin\delivery\web; | ||
|
|
||
| class Url { | ||
|
|
||
| const HOST_PREFIX = '//'; | ||
| const PORT_SEPARATOR = ':'; | ||
| const SCHEME_SEPARATOR = ':'; | ||
| const QUERY_STRING_SEPARATOR = '?'; | ||
| const FRAGMENT_SEPARATOR = '#'; | ||
| const MAX_PARAM_LENGTH = 512; | ||
|
|
||
| /** @var null|string */ | ||
| private $scheme; | ||
|
|
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| /** @var null|string */ | ||
| private $host; | ||
|
|
||
| /** @var null|int */ | ||
| private $port; | ||
|
|
||
| /** @var array */ | ||
| private $path; | ||
|
|
||
| /** @var array */ | ||
| private $parameters; | ||
|
|
||
| /** @var string|null */ | ||
| private $fragment; | ||
|
|
||
| /** | ||
| * @param string $scheme | ||
| * @param string $host | ||
| * @param int $port | ||
| * @param array $path | ||
| * @param array $parameters | ||
| * @param string|null $fragment | ||
| */ | ||
| function __construct($scheme = 'http', $host = null, $port = 80, array $path = [], $parameters = [], $fragment = null) { | ||
| $this->scheme = $scheme; | ||
| $this->host = $host; | ||
| $this->port = $port; | ||
| $this->path = $path; | ||
| $this->parameters = $parameters; | ||
| $this->fragment = $fragment; | ||
| } | ||
|
|
||
| /** | ||
| * @param array|string $path | ||
| * @param array $parameters | ||
| * @param null|string $fragment | ||
| * @return Url | ||
| */ | ||
| public static function relative($path, array $parameters = [], $fragment = null) { | ||
| return new Url(null, null, null, (array)$path, $parameters, $fragment); | ||
| } | ||
|
|
||
| /** | ||
| * @return Url | ||
| */ | ||
| private function copy() { | ||
| return new Url( | ||
| $this->scheme, | ||
| $this->host, | ||
| $this->port, | ||
| $this->path, | ||
| $this->parameters, | ||
| $this->fragment | ||
| ); | ||
| } | ||
|
|
||
| /** | ||
| * @return null|string | ||
| */ | ||
| public function getScheme() { | ||
| return $this->scheme; | ||
| } | ||
| /** | ||
| * @return null|string | ||
| */ | ||
| public function getHost() { | ||
| return $this->host; | ||
| } | ||
| /** | ||
| * @return int|null | ||
| */ | ||
| public function getPort() { | ||
| return $this->port; | ||
| } | ||
| /** | ||
| * @return array | ||
| */ | ||
| public function getParameters() { | ||
| return $this->parameters; | ||
| } | ||
|
|
||
| /** | ||
| * @param array $parameters | ||
| * @return static | ||
| */ | ||
| public function withParameters(array $parameters) { | ||
| $newUrl = $this->copy(); | ||
| $newUrl->parameters = $parameters; | ||
| return $newUrl; | ||
| } | ||
| /** | ||
| * @param string $key | ||
| * @param mixed $value | ||
| * @return static | ||
| */ | ||
| public function withParameter($key, $value) { | ||
| $newUrl = $this->copy(); | ||
| $newUrl->parameters[$key] = $value; | ||
| return $newUrl; | ||
| } | ||
| /** | ||
| * @return null|string | ||
| */ | ||
| public function getFragment() { | ||
| return $this->fragment; | ||
| } | ||
| /** | ||
| * @return array | ||
| */ | ||
| public function getPath() { | ||
| return $this->path; | ||
| } | ||
| /** | ||
| * @param array $path | ||
| * @return static | ||
| */ | ||
| public function withPath(array $path) { | ||
| $url = $this->copy(); | ||
| $url->path = $path; | ||
| return $url; | ||
| } | ||
|
|
||
| /** | ||
| * @param array $path | ||
| * @return Url | ||
| */ | ||
| public function append(array $path) { | ||
| $url = $this->copy(); | ||
| $url->path = array_merge($url->path, $path); | ||
| return $url; | ||
| } | ||
|
|
||
| public function __toString() { | ||
| $queries = array(); | ||
| foreach ($this->flattenParams($this->parameters) as $key => $value) { | ||
| $queries[] = $key . '=' . urlencode($value); | ||
| } | ||
| $port = $this->port ? self::PORT_SEPARATOR . $this->port : ''; | ||
| $scheme = $this->scheme ? $this->scheme . self::SCHEME_SEPARATOR : ''; | ||
| $server = $this->host ? $scheme . self::HOST_PREFIX . $this->host . $port : ''; | ||
| return | ||
| $server | ||
| . implode('/', $this->path) | ||
| . ($queries ? self::QUERY_STRING_SEPARATOR . implode('&', $queries) : '') | ||
| . ($this->fragment ? self::FRAGMENT_SEPARATOR . $this->fragment : ''); | ||
| } | ||
|
|
||
| private function flattenParams($parameters, $i = 0) { | ||
| $flat = []; | ||
| foreach ($parameters as $key => $value) { | ||
| if (is_array($value)) { | ||
| foreach ($this->flattenParams($value, $i + 1) as $subKey => $subValue) { | ||
| $flatKey = $i ? "{$key}][{$subKey}" : "{$key}[{$subKey}]"; | ||
| $flat = $this->set($flat, $flatKey, $subValue); | ||
| } | ||
| } else { | ||
| $flat = $this->set($flat, $key, $value); | ||
| } | ||
| } | ||
| return $flat; | ||
| } | ||
|
|
||
| private function set(array $map, $key, $value) { | ||
| $cabBeCasted = !is_object($value) || method_exists($value, '__toString'); | ||
| if ($cabBeCasted && strlen((string)$value) <= self::MAX_PARAM_LENGTH) { | ||
| $map[$key] = $value; | ||
| } | ||
| return $map; | ||
| } | ||
| } |
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