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<?php |
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/* |
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* This file is part of the Borobudur-Http package. |
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* |
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* (c) Hexacodelabs <http://hexacodelabs.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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namespace Borobudur\Http\Header\Accept; |
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use Borobudur\Http\Exception\InvalidArgumentException; |
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/** |
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* @author Iqbal Maulana <[email protected]> |
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* @created 7/18/15 |
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*/ |
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class AcceptHeaderItem |
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{ |
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/** |
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* @var string |
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*/ |
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private $value; |
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/** |
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* @var float |
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*/ |
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private $priority = 1.0; |
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/** |
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* @var array |
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*/ |
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private $parameters = array(); |
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/** |
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* @var int |
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*/ |
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private $index = null; |
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/** |
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* Constructor. |
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* |
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* @param string $value |
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* @param array|null $parameters |
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*/ |
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public function __construct($value, array $parameters = null) |
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{ |
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$this->value = $value; |
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if (null !== $parameters) { |
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foreach ($parameters as $name => $value) { |
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$this->setParameter($name, $value); |
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} |
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} |
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} |
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/** |
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* Set a parameter. |
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* |
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* @param string $name |
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* @param string $value |
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* |
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* @return $this |
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*/ |
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public function setParameter($name, $value) |
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{ |
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if ('q' === $name) { |
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$this->setPriority($value); |
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} else { |
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$this->parameters[$name] = (string)$value; |
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} |
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return $this; |
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} |
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/** |
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* Factory create AcceptHeaderItem from string. |
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* |
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* @param string $itemString |
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* |
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* @return $this |
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*/ |
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public static function fromString($itemString) |
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{ |
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preg_match_all('#((("[^"\']++")|(\'[^"\']++\'))|[^;"\'])+#', (string)$itemString, $parts); |
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$bits = $parts[0]; |
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$fieldValue = array_shift($bits); |
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$parameters = array(); |
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foreach ($bits as $bit) { |
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$pos = strpos($bit, '='); |
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$name = false === $pos ? $bit : substr($bit, 0, $pos); |
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$value = false === $pos ? null : substr($bit, $pos + 1); |
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if (null !== $value |
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&& in_array($value[0], array('\'', '"')) |
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&& in_array(substr($value, -1), array('\'', '"')) |
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) { |
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$value = substr($value, 1, -1); |
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} |
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$parameters[$name] = $value; |
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} |
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return new static($fieldValue, $parameters); |
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} |
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/** |
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* Return header item value. |
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* |
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* @return string |
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*/ |
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public function getValue() |
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{ |
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return $this->value; |
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} |
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/** |
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* Get accept header item quality. |
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* |
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* @return float |
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*/ |
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public function getPriority() |
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{ |
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return $this->priority; |
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} |
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/** |
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* Set accept header item quality. |
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* |
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* @param float|int $priority |
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* |
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* @return $this |
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* |
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* @throws InvalidArgumentException |
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*/ |
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public function setPriority($priority) |
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{ |
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$priority = (float)$priority; |
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if (0 > $priority || 1 < $priority) { |
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throw new InvalidArgumentException(sprintf('Priority must between 0 - 1, "%s" give.', $priority)); |
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} |
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$this->priority = $priority; |
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return $this; |
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} |
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/** |
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* Get all parameters. |
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* |
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* @return array |
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*/ |
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public function getParameters() |
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{ |
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return $this->parameters; |
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} |
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/** |
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* Return parameter by name or default value if not exist. |
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* |
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* @param string $name |
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* @param string|null $default |
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* |
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* @return string|null |
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*/ |
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public function getParameter($name, $default = null) |
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{ |
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if (isset($this->parameters[$name])) { |
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return $this->parameters[$name]; |
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} |
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return $default; |
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} |
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/** |
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* Check if parameter exist by name. |
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* |
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* @param string $name |
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* |
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* @return bool |
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*/ |
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public function hasParameter($name) |
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{ |
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return isset($this->parameters[$name]); |
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} |
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/** |
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* Set accept header item index. |
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* |
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* @param int $index |
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* |
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* @return $this |
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*/ |
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public function setIndex($index) |
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{ |
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$this->index = (int)$index; |
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return $this; |
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} |
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/** |
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* Get index. |
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* |
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* @return int |
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*/ |
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public function getIndex() |
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{ |
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return $this->index; |
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} |
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/** |
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* Cast accept item to string representation. |
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* |
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* @return string |
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*/ |
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public function __toString() |
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{ |
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$string = $this->value . ($this->priority < 1 ? ';q=' . $this->priority : ''); |
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if (count($this->parameters)) { |
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foreach ($this->parameters as $name => $value) { |
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$format = preg_match('/[,;=]/', $value) ? ';%s="%s"' : ';%s=%s'; |
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$string .= sprintf($format, $name, $value); |
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} |
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} |
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return $string; |
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} |
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} |
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