135 lines
4.0 KiB
PHP
135 lines
4.0 KiB
PHP
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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 <nyamsprod@gmail.com>
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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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use TypeError;
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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 <nyamsprod@gmail.com>
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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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private Template $template;
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private VariableBag $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 $defaultDefaultVariables): self
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{
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return new self(
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$this->template->toString(),
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$this->filterVariables($defaultDefaultVariables)->all()
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);
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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 $variables = []): UriInterface
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{
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return Uri::createFromString(
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$this->template->expand(
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$this->filterVariables($variables)->replace($this->defaultVariables)
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)
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);
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}
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}
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