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<?php |
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/** |
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* League.Uri (https://uri.thephpleague.com) |
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* |
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* (c) Ignace Nyamagana Butera <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace League\Uri; |
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use League\Uri\Contracts\UriException; |
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use League\Uri\Contracts\UriInterface; |
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use League\Uri\Exceptions\SyntaxError; |
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use League\Uri\Exceptions\TemplateCanNotBeExpanded; |
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use League\Uri\UriTemplate\Template; |
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use League\Uri\UriTemplate\VariableBag; |
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/** |
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* Defines the URI Template syntax and the process for expanding a URI Template into a URI reference. |
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* |
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* @link https://tools.ietf.org/html/rfc6570 |
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* @package League\Uri |
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* @author Ignace Nyamagana Butera <[email protected]> |
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* @since 6.1.0 |
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* |
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* Based on GuzzleHttp\UriTemplate class in Guzzle v6.5. |
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* @link https://github.com/guzzle/guzzle/blob/6.5/src/UriTemplate.php |
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*/ |
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final class UriTemplate |
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{ |
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/** |
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* @var Template |
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*/ |
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private $template; |
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/** |
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* @var VariableBag |
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*/ |
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private $defaultVariables; |
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/** |
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* @param object|string $template a string or an object with the __toString method |
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* |
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* @throws \TypeError if the template is not a string or an object with the __toString method |
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* @throws SyntaxError if the template syntax is invalid |
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* @throws TemplateCanNotBeExpanded if the template variables are invalid |
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*/ |
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public function __construct($template, array $defaultVariables = []) |
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{ |
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$this->template = Template::createFromString($template); |
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$this->defaultVariables = $this->filterVariables($defaultVariables); |
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} |
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public static function __set_state(array $properties): self |
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{ |
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return new self($properties['template']->toString(), $properties['defaultVariables']->all()); |
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} |
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/** |
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* Filters out variables for the given template. |
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* |
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* @param array<string,string|array<string>> $variables |
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*/ |
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private function filterVariables(array $variables): VariableBag |
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{ |
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$output = new VariableBag(); |
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foreach ($this->template->variableNames() as $name) { |
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if (isset($variables[$name])) { |
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$output->assign($name, $variables[$name]); |
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} |
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} |
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return $output; |
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} |
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/** |
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* The template string. |
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*/ |
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public function getTemplate(): string |
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{ |
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return $this->template->toString(); |
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} |
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/** |
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* Returns the names of the variables in the template, in order. |
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* |
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* @return string[] |
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*/ |
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public function getVariableNames(): array |
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{ |
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return $this->template->variableNames(); |
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} |
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/** |
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* Returns the default values used to expand the template. |
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* |
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* The returned list only contains variables whose name is part of the current template. |
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* |
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* @return array<string,string|array> |
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*/ |
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public function getDefaultVariables(): array |
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{ |
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return $this->defaultVariables->all(); |
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} |
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/** |
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* Returns a new instance with the updated default variables. |
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* |
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* This method MUST retain the state of the current instance, and return |
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* an instance that contains the modified default variables. |
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* |
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* If present, variables whose name is not part of the current template |
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* possible variable names are removed. |
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*/ |
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public function withDefaultVariables(array $defaultDefaultVariables): self |
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{ |
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$clone = clone $this; |
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$clone->defaultVariables = $this->filterVariables($defaultDefaultVariables); |
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return $clone; |
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} |
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/** |
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* @throws TemplateCanNotBeExpanded if the variable contains nested array values |
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* @throws UriException if the resulting expansion can not be converted to a UriInterface instance |
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*/ |
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public function expand(array $variables = []): UriInterface |
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{ |
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$uriString = $this->template->expand( |
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$this->filterVariables($variables)->replace($this->defaultVariables) |
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); |
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return Uri::createFromString($uriString); |
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} |
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} |
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thephpleague /
uri
