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<?php |
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/** |
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* This file is part of the ZBateson\MailMimeParser project. |
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* |
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* @license http://opensource.org/licenses/bsd-license.php BSD |
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*/ |
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namespace ZBateson\MailMimeParser; |
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use ZBateson\MailMimeParser\Header\HeaderFactory; |
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use ZBateson\MailMimeParser\Header\ParameterHeader; |
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/** |
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* Represents a single part of a multi-part mime message. |
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* |
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* A MimePart object may have any number of child parts, or may be a child |
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* itself with its own parent or parents. |
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* |
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* The content of the part can be read from its PartStream resource handle, |
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* accessible via MimePart::getContentResourceHanlde. |
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* |
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* @author Zaahid Bateson |
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*/ |
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class MimePart |
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{ |
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/** |
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* @var \ZBateson\MailMimeParser\Header\HeaderFactory the HeaderFactory |
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* object used for created headers |
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*/ |
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protected $headerFactory; |
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/** |
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* @var \ZBateson\MailMimeParser\Header\AbstractHeader[] array of header |
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* objects |
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*/ |
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protected $headers; |
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/** |
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* @var \ZBateson\MailMimeParser\MimePart parent part |
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*/ |
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protected $parent; |
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/** |
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* @var resource the content's resource handle |
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*/ |
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protected $handle; |
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/** |
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* Sets up class dependencies. |
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* |
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* @param HeaderFactory $headerFactory |
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*/ |
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public function __construct(HeaderFactory $headerFactory) |
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{ |
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$this->headerFactory = $headerFactory; |
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} |
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/** |
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* Closes the attached resource handle. |
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*/ |
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public function __destruct() |
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{ |
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if ($this->handle !== null) { |
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fclose($this->handle); |
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} |
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} |
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/** |
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* Returns true if there's a content stream associated with the part. |
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* |
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* @return boolean |
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*/ |
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public function hasContent() |
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{ |
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if (!empty($this->handle)) { |
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return true; |
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} |
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return false; |
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} |
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/** |
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* Attaches the resource handle for the part's content. The attached handle |
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* is closed when the MimePart object is destroyed. |
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* |
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* @param resource $contentHandle |
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*/ |
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public function attachContentResourceHandle($contentHandle) |
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{ |
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$this->handle = $contentHandle; |
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} |
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/** |
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* Returns the resource stream handle for the part's content. |
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* |
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* The resource is automatically closed by MimePart's destructor and should |
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* not be closed otherwise. |
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* |
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* @return resource |
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*/ |
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public function getContentResourceHandle() |
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{ |
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return $this->handle; |
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} |
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/** |
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* Adds a header with the given $name and $value. |
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* |
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* Creates a new \ZBateson\MailMimeParser\Header\AbstractHeader object and |
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* registers it as a header. |
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* |
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* @param string $name |
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* @param string $value |
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*/ |
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public function setRawHeader($name, $value) |
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{ |
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$this->headers[strtolower($name)] = $this->headerFactory->newInstance($name, $value); |
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} |
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/** |
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* Returns the AbstractHeader object for the header with the given $name |
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* |
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* Note that mime headers aren't case sensitive. |
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* |
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* @param string $name |
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* @return \ZBateson\MailMimeParser\Header\Header |
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*/ |
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public function getHeader($name) |
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{ |
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if (isset($this->headers[strtolower($name)])) { |
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return $this->headers[strtolower($name)]; |
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} |
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return null; |
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} |
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/** |
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* Returns the string value for the header with the given $name. |
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* |
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* Note that mime headers aren't case sensitive. |
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* |
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* @param string $name |
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* @param string $defaultValue |
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* @return string |
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*/ |
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public function getHeaderValue($name, $defaultValue = null) |
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{ |
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$header = $this->getHeader($name); |
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if (!empty($header)) { |
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return $header->getValue(); |
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} |
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return $defaultValue; |
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} |
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/** |
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* Returns the full array of headers for this part. |
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* |
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* @return \ZBateson\MailMimeParser\Header\AbstractHeader[] |
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*/ |
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public function getHeaders() |
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{ |
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return $this->headers; |
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} |
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/** |
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* Returns a parameter of the header $header, given the parameter named |
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* $param. |
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* |
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* Only headers of type |
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* \ZBateson\MailMimeParser\Header\ParameterHeader have parameters. |
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* Content-Type and Content-Disposition are examples of headers with |
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* parameters. "Charset" is a common parameter of Content-Type. |
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* |
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* @param string $header |
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* @param string $param |
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* @param string $defaultValue |
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* @return string |
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*/ |
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public function getHeaderParameter($header, $param, $defaultValue = null) |
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{ |
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$obj = $this->getHeader($header); |
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if ($obj && $obj instanceof ParameterHeader) { |
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return $obj->getValueFor($param, $defaultValue); |
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} |
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return $defaultValue; |
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} |
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/** |
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* Sets the parent part. |
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* |
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* @param \ZBateson\MailMimeParser\MimePart $part |
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*/ |
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public function setParent(MimePart $part) |
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{ |
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$this->parent = $part; |
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} |
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/** |
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* Returns this part's parent. |
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* |
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* @return \ZBateson\MailMimeParser\MimePart |
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*/ |
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public function getParent() |
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{ |
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return $this->parent; |
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} |
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} |
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