zbateson /
mail-mime-parser
Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like Message often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Message, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 26 | class Message extends MimePart |
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| 27 | { |
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| 28 | /** |
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| 29 | * @var string unique ID used to identify the object to |
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| 30 | * $this->partStreamRegistry when registering the stream. The ID is |
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| 31 | * used for opening stream parts with the mmp-mime-message "protocol". |
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| 32 | * |
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| 33 | * @see \ZBateson\MailMimeParser\SimpleDi::registerStreamExtensions |
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| 34 | * @see \ZBateson\MailMimeParser\Stream\PartStream::stream_open |
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| 35 | */ |
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| 36 | protected $objectId; |
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| 37 | |||
| 38 | /** |
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| 39 | * @var \ZBateson\MailMimeParser\MimePart represents the content portion of |
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| 40 | * the email message. It is assigned either a text or HTML part, or a |
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| 41 | * MultipartAlternativePart |
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| 42 | */ |
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| 43 | protected $contentPart; |
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| 44 | |||
| 45 | /** |
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| 46 | * @var \ZBateson\MailMimeParser\MimePart contains the body of the signature |
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| 47 | * for a multipart/signed message. |
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| 48 | */ |
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| 49 | protected $signedSignaturePart; |
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| 50 | |||
| 51 | /** |
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| 52 | * @var \ZBateson\MailMimeParser\MimePart The mixed part for a |
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| 53 | * multipart/signed message if the message contains attachments |
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| 54 | */ |
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| 55 | protected $signedMixedPart; |
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| 56 | |||
| 57 | /** |
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| 58 | * @var \ZBateson\MailMimeParser\MimePart[] array of non-content parts in |
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| 59 | * this message |
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| 60 | */ |
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| 61 | protected $attachmentParts = []; |
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| 62 | |||
| 63 | /** |
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| 64 | * @var \ZBateson\MailMimeParser\MimePartFactory a MimePartFactory to create |
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| 65 | * parts for attachments/content |
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| 66 | */ |
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| 67 | protected $mimePartFactory; |
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| 68 | |||
| 69 | /** |
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| 70 | * @var bool set to true if a newline should be inserted before the next |
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| 71 | * boundary (signed messages are finicky) |
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| 72 | */ |
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| 73 | private $insertNewLineBeforeBoundary = false; |
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| 74 | |||
| 75 | /** |
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| 76 | * Convenience method to parse a handle or string into a Message without |
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| 77 | * requiring including MailMimeParser, instantiating it, and calling parse. |
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| 78 | * |
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| 79 | * @param resource|string $handleOrString the resource handle to the input |
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| 80 | * stream of the mime message, or a string containing a mime message |
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| 81 | */ |
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| 82 | 1 | public static function from($handleOrString) |
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| 87 | |||
| 88 | /** |
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| 89 | * Constructs a Message. |
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| 90 | * |
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| 91 | * @param HeaderFactory $headerFactory |
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| 92 | * @param MimePartFactory $mimePartFactory |
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| 93 | */ |
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| 94 | 86 | public function __construct(HeaderFactory $headerFactory, MimePartFactory $mimePartFactory) |
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| 100 | |||
| 101 | /** |
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| 102 | * Returns the unique object ID registered with the PartStreamRegistry |
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| 103 | * service object. |
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| 104 | * |
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| 105 | * @return string |
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| 106 | */ |
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| 107 | 81 | public function getObjectId() |
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| 111 | |||
| 112 | /** |
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| 113 | * Loops through the parts parents to find if it's an alternative part or |
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| 114 | * an attachment. |
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| 115 | * |
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| 116 | * @param \ZBateson\MailMimeParser\MimePart $part |
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| 117 | * @return boolean true if its been added |
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| 118 | */ |
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| 119 | 21 | private function addToAlternativeContentPartFromParsed(MimePart $part) |
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| 138 | |||
| 139 | /** |
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| 140 | * Returns true if the $part should be assigned as this message's main |
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| 141 | * content part. |
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| 142 | * |
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| 143 | * @param \ZBateson\MailMimeParser\MimePart $part |
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| 144 | * @return bool |
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| 145 | */ |
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| 146 | 81 | private function addContentPartFromParsed(MimePart $part) |
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| 161 | |||
| 162 | /** |
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| 163 | * Either adds the passed part to $this->textPart if its content type is |
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| 164 | * text/plain, to $this->htmlPart if it's text/html, or adds the part to the |
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| 165 | * parts array otherwise. |
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| 166 | * |
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| 167 | * @param \ZBateson\MailMimeParser\MimePart $part |
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| 168 | */ |
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| 169 | 84 | public function addPart(MimePart $part) |
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| 183 | |||
| 184 | /** |
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| 185 | * Returns the content part (or null) for the passed mime type looking at |
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| 186 | * the assigned content part, and if it's a multipart/alternative part, |
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| 187 | * looking to find an alternative part of the passed mime type. |
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| 188 | * |
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| 189 | * @param string $mimeType |
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| 190 | * @return \ZBateson\MailMimeParser\MimePart or null if not available |
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| 191 | */ |
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| 192 | 71 | protected function getContentPartByMimeType($mimeType) |
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| 205 | |||
| 206 | /** |
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| 207 | * Sets the content of the message to the content of the passed part, for a |
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| 208 | * message with a multipart/alternative content type where the other part |
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| 209 | * has been removed, and this is the only remaining part. |
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| 210 | * |
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| 211 | * @param \ZBateson\MailMimeParser\MimePart $part |
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| 212 | */ |
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| 213 | 2 | private function overrideAlternativeMessageContentFromContentPart(MimePart $part) |
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| 231 | |||
| 232 | /** |
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| 233 | * Removes the passed MimePart as a content part. If there's a remaining |
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| 234 | * part, either sets the content on this message if the message itself is a |
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| 235 | * multipart/alternative message, or overrides the contentPart with the |
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| 236 | * remaining part. |
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| 237 | * |
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| 238 | * @param \ZBateson\MailMimeParser\MimePart $part |
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| 239 | */ |
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| 240 | 3 | private function removePartFromAlternativeContentPart(MimePart $part) |
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| 252 | |||
| 253 | /** |
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| 254 | * Loops over children of the content part looking for a part with the |
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| 255 | * passed mime type, then proceeds to remove it by calling |
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| 256 | * removePartFromAlternativeContentPart. |
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| 257 | * |
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| 258 | * @param string $contentType |
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| 259 | * @return boolean true on success |
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| 260 | */ |
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| 261 | 3 | private function removeContentPartFromAlternative($contentType) |
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| 273 | |||
| 274 | /** |
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| 275 | * Removes the content part of the message with the passed mime type. If |
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| 276 | * there is a remaining content part and it is an alternative part of the |
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| 277 | * main message, the content part is moved to the message part. |
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| 278 | * |
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| 279 | * If the content part is part of an alternative part beneath the message, |
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| 280 | * the alternative part is replaced by the remaining content part. |
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| 281 | * |
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| 282 | * @param string $contentType |
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| 283 | * @return boolean true on success |
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| 284 | */ |
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| 285 | 3 | protected function removeContentPart($contentType) |
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| 301 | |||
| 302 | /** |
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| 303 | * Returns the text part (or null if none is set.) |
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| 304 | * |
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| 305 | * @return \ZBateson\MailMimeParser\MimePart |
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| 306 | */ |
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| 307 | 61 | public function getTextPart() |
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| 311 | |||
| 312 | /** |
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| 313 | * Returns the HTML part (or null if none is set.) |
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| 314 | * |
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| 315 | * @return \ZBateson\MailMimeParser\MimePart |
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| 316 | */ |
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| 317 | 33 | public function getHtmlPart() |
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| 321 | |||
| 322 | /** |
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| 323 | * Returns an open resource handle for the passed string or resource handle. |
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| 324 | * |
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| 325 | * For a string, creates a php://temp stream and returns it. |
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| 326 | * |
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| 327 | * @param resource|string $stringOrHandle |
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| 328 | * @return resource |
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| 329 | */ |
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| 330 | 5 | private function getHandleForStringOrHandle($stringOrHandle) |
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| 341 | |||
| 342 | /** |
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| 343 | * Creates and returns a unique boundary. |
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| 344 | * |
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| 345 | * @return string |
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| 346 | */ |
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| 347 | 15 | private function getUniqueBoundary() |
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| 351 | |||
| 352 | /** |
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| 353 | * Creates a unique mime boundary and assigns it to the passed part's |
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| 354 | * Content-Type header with the passed mime type. |
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| 355 | * |
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| 356 | * @param \ZBateson\MailMimeParser\MimePart $part |
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| 357 | * @param string $mimeType |
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| 358 | */ |
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| 359 | 7 | private function setMimeHeaderBoundaryOnPart(MimePart $part, $mimeType) |
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| 367 | |||
| 368 | /** |
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| 369 | * Sets this message to be a multipart/alternative message, making space for |
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| 370 | * another alternative content part. |
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| 371 | * |
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| 372 | * Creates a content part and assigns the content stream from the message to |
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| 373 | * that newly created part. |
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| 374 | */ |
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| 375 | 2 | private function setMessageAsAlternative() |
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| 390 | |||
| 391 | /** |
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| 392 | * Creates a new mime part as a multipart/alternative, assigning it to |
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| 393 | * $this->contentPart. Adds the current contentPart below the newly created |
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| 394 | * alternative part. |
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| 395 | */ |
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| 396 | 2 | private function createAlternativeContentPart() |
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| 406 | |||
| 407 | /** |
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| 408 | * Copies Content-Type, Content-Disposition and Content-Transfer-Encoding |
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| 409 | * headers from the $from header into the $to header. If the Content-Type |
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| 410 | * header isn't defined in $from, defaults to text/plain and |
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| 411 | * quoted-printable. |
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| 412 | * |
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| 413 | * @param \ZBateson\MailMimeParser\MimePart $from |
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| 414 | * @param \ZBateson\MailMimeParser\MimePart $to |
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| 415 | */ |
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| 416 | 8 | private function copyTypeHeadersFromPartToPart(MimePart $from, MimePart $to) |
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| 434 | |||
| 435 | /** |
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| 436 | * Creates a new content part from the passed part, allowing the part to be |
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| 437 | * used for something else (e.g. changing a non-mime message to a multipart |
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| 438 | * mime message). |
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| 439 | */ |
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| 440 | 4 | private function createNewContentPartFromPart(MimePart $part) |
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| 448 | |||
| 449 | /** |
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| 450 | * Creates a new part out of the current contentPart and sets the message's |
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| 451 | * type to be multipart/mixed. |
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| 452 | */ |
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| 453 | 4 | private function setMessageAsMixed() |
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| 461 | |||
| 462 | /** |
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| 463 | * Updates parents of the contentPart and any children, and sets |
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| 464 | * $this->contentPart to the passed $messagePart if the $this->contentPart |
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| 465 | * is set to $this |
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| 466 | * |
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| 467 | * @param \ZBateson\MailMimeParser\MimePart $messagePart |
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| 468 | */ |
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| 469 | 5 | private function updateContentPartForSignedMessage(MimePart $messagePart) |
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| 491 | |||
| 492 | /** |
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| 493 | * This function makes space by moving the main message part down one level. |
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| 494 | * |
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| 495 | * The content-type, content-disposition and content-transfer-encoding |
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| 496 | * headers are copied from this message to the newly created part, the |
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| 497 | * resource handle is moved and detached, any attachments and content parts |
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| 498 | * with parents set to this message get their parents set to the newly |
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| 499 | * created part. |
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| 500 | */ |
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| 501 | 5 | private function makeSpaceForMultipartSignedMessage() |
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| 520 | |||
| 521 | /** |
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| 522 | * Creates and returns a new MimePart for the signature part of a |
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| 523 | * multipart/signed message and assigns it to $this->signedSignaturePart. |
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| 524 | * |
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| 525 | * @param string $protocol |
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| 526 | * @param string $body |
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| 527 | */ |
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| 528 | 77 | public function createSignaturePart($body) |
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| 540 | |||
| 541 | /** |
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| 542 | * Creates a multipart/mixed MimePart assigns it to $this->signedMixedPart |
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| 543 | * if the message contains attachments. |
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| 544 | * |
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| 545 | * @param array $parts |
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| 546 | */ |
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| 547 | 11 | private function createMultipartMixedForSignedMessage() |
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| 564 | |||
| 565 | /** |
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| 566 | * Loops over parts of this message and sets the content-transfer-encoding |
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| 567 | * header to quoted-printable for text/* mime parts, and to base64 |
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| 568 | * otherwise for parts that are '8bit' encoded. |
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| 569 | * |
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| 570 | * Used for multipart/signed messages which doesn't support 8bit transfer |
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| 571 | * encodings. |
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| 572 | */ |
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| 573 | 7 | private function overwrite8bitContentEncoding() |
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| 585 | |||
| 586 | /** |
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| 587 | * Ensures a non-text part comes first in a signed multipart/alternative |
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| 588 | * message as some clients seem to prefer the first content part if the |
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| 589 | * client doesn't understand multipart/signed. |
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| 590 | */ |
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| 591 | 7 | private function ensureHtmlPartFirstForSignedMessage() |
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| 605 | |||
| 606 | /** |
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| 607 | * Turns the message into a multipart/signed message, moving the actual |
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| 608 | * message into a child part, sets the content-type of the main message to |
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| 609 | * multipart/signed and adds a signature part as well. |
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| 610 | * |
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| 611 | * @param string $micalg The Message Integrity Check algorithm being used |
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| 612 | * @param string $protocol The mime-type of the signature body |
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| 613 | * @param string $body The signature signed according to the value of |
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| 614 | * $protocol |
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| 615 | */ |
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| 616 | 7 | public function setAsMultipartSigned($micalg, $protocol) |
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| 633 | |||
| 634 | /** |
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| 635 | * Returns the signed part or null if not set. |
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| 636 | * |
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| 637 | * @return \ZBateson\MailMimeParser\MimePart |
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| 638 | */ |
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| 639 | 11 | public function getSignaturePart() |
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| 643 | |||
| 644 | /** |
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| 645 | * Enforces the message to be a mime message for a non-mime (e.g. uuencoded |
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| 646 | * or unspecified) message. If the message has uuencoded attachments, sets |
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| 647 | * up the message as a multipart/mixed message and creates a content part. |
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| 648 | */ |
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| 649 | 9 | private function enforceMime() |
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| 660 | |||
| 661 | /** |
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| 662 | * Creates a new content part for the passed mimeType and charset, making |
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| 663 | * space by creating a multipart/alternative if needed |
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| 664 | * |
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| 665 | * @param string $mimeType |
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| 666 | * @param string $charset |
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| 667 | * @return \ZBateson\MailMimeParser\MimePart |
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| 668 | */ |
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| 669 | 4 | private function createContentPartForMimeType($mimeType, $charset) |
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| 694 | |||
| 695 | /** |
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| 696 | * Either creates a mime part or sets the existing mime part with the passed |
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| 697 | * mimeType to $strongOrHandle. |
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| 698 | * |
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| 699 | * @param string $mimeType |
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| 700 | * @param string|resource $stringOrHandle |
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| 701 | * @param string $charset |
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| 702 | */ |
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| 703 | 4 | protected function setContentPartForMimeType($mimeType, $stringOrHandle, $charset) |
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| 719 | |||
| 720 | /** |
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| 721 | * Sets the text/plain part of the message to the passed $stringOrHandle, |
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| 722 | * either creating a new part if one doesn't exist for text/plain, or |
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| 723 | * assigning the value of $stringOrHandle to an existing text/plain part. |
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| 724 | * |
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| 725 | * The optional $charset parameter is the charset for saving to. |
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| 726 | * $stringOrHandle is expected to be in UTF-8. |
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| 727 | * |
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| 728 | * @param string|resource $stringOrHandle |
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| 729 | * @param string $charset |
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| 730 | */ |
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| 731 | 1 | public function setTextPart($stringOrHandle, $charset = null) |
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| 735 | |||
| 736 | /** |
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| 737 | * Sets the text/html part of the message to the passed $stringOrHandle, |
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| 738 | * either creating a new part if one doesn't exist for text/html, or |
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| 739 | * assigning the value of $stringOrHandle to an existing text/html part. |
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| 740 | * |
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| 741 | * The optional $charset parameter is the charset for saving to. |
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| 742 | * $stringOrHandle is expected to be in UTF-8. |
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| 743 | * |
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| 744 | * @param string|resource $stringOrHandle |
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| 745 | * @param string $charset |
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| 746 | */ |
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| 747 | 4 | public function setHtmlPart($stringOrHandle, $charset = null) |
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| 751 | |||
| 752 | /** |
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| 753 | * Removes the text part of the message if one exists. Returns true on |
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| 754 | * success. |
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| 755 | * |
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| 756 | * @return bool true on success |
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| 757 | */ |
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| 758 | 2 | public function removeTextPart() |
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| 762 | |||
| 763 | /** |
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| 764 | * Removes the html part of the message if one exists. Returns true on |
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| 765 | * success. |
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| 766 | * |
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| 767 | * @return bool true on success |
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| 768 | */ |
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| 769 | 1 | public function removeHtmlPart() |
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| 773 | |||
| 774 | /** |
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| 775 | * Returns the non-content part at the given 0-based index, or null if none |
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| 776 | * is set. |
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| 777 | * |
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| 778 | * @param int $index |
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| 779 | * @return \ZBateson\MailMimeParser\MimePart |
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| 780 | */ |
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| 781 | 7 | public function getAttachmentPart($index) |
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| 788 | |||
| 789 | /** |
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| 790 | * Returns all attachment parts. |
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| 791 | * |
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| 792 | * @return \ZBateson\MailMimeParser\MimePart[] |
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| 793 | */ |
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| 794 | 44 | public function getAllAttachmentParts() |
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| 798 | |||
| 799 | /** |
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| 800 | * Returns the number of attachments available. |
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| 801 | * |
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| 802 | * @return int |
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| 803 | */ |
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| 804 | 45 | public function getAttachmentCount() |
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| 808 | |||
| 809 | /** |
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| 810 | * Removes the attachment with the given index |
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| 811 | * |
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| 812 | * @param int $index |
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| 813 | */ |
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| 814 | 2 | public function removeAttachmentPart($index) |
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| 820 | |||
| 821 | /** |
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| 822 | * Creates and returns a MimePart for use with a new attachment part being |
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| 823 | * created. |
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| 824 | * |
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| 825 | * @return \ZBateson\MailMimeParser\MimePart |
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| 826 | */ |
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| 827 | 2 | protected function createPartForAttachment() |
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| 841 | |||
| 842 | /** |
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| 843 | * Adds an attachment part for the passed raw data string or handle and |
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| 844 | * given parameters. |
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| 845 | * |
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| 846 | * @param string|handle $stringOrHandle |
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| 847 | * @param strubg $mimeType |
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| 848 | * @param string $filename |
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| 849 | * @param string $disposition |
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| 850 | */ |
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| 851 | 1 | public function addAttachmentPart($stringOrHandle, $mimeType, $filename = null, $disposition = 'attachment') |
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| 865 | |||
| 866 | /** |
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| 867 | * Adds an attachment part using the passed file. |
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| 868 | * |
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| 869 | * Essentially creates a file stream and uses it. |
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| 870 | * |
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| 871 | * @param string $file |
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| 872 | * @param string $mimeType |
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| 873 | * @param string $filename |
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| 874 | * @param string $disposition |
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| 875 | */ |
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| 876 | 2 | public function addAttachmentPartFromFile($file, $mimeType, $filename = null, $disposition = 'attachment') |
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| 891 | |||
| 892 | /** |
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| 893 | * Returns a resource handle where the text content can be read or null if |
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| 894 | * unavailable. |
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| 895 | * |
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| 896 | * @return resource |
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| 897 | */ |
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| 898 | 57 | public function getTextStream() |
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| 906 | |||
| 907 | /** |
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| 908 | * Returns the text content as a string. |
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| 909 | * |
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| 910 | * Reads the entire stream content into a string and returns it. Returns |
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| 911 | * null if the message doesn't have a text part. |
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| 912 | * |
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| 913 | * @return string |
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| 914 | */ |
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| 915 | 1 | public function getTextContent() |
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| 923 | |||
| 924 | /** |
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| 925 | * Returns a resource handle where the HTML content can be read or null if |
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| 926 | * unavailable. |
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| 927 | * |
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| 928 | * @return resource |
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| 929 | */ |
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| 930 | 27 | public function getHtmlStream() |
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| 938 | |||
| 939 | /** |
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| 940 | * Returns the HTML content as a string. |
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| 941 | * |
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| 942 | * Reads the entire stream content into a string and returns it. Returns |
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| 943 | * null if the message doesn't have an HTML part. |
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| 944 | * |
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| 945 | * @return string |
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| 946 | */ |
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| 947 | public function getHtmlContent() |
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| 955 | |||
| 956 | /** |
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| 957 | * Returns true if either a Content-Type or Mime-Version header are defined |
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| 958 | * in this Message. |
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| 959 | * |
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| 960 | * @return bool |
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| 961 | */ |
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| 962 | 81 | public function isMime() |
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| 968 | |||
| 969 | /** |
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| 970 | * Writes out a mime boundary to the passed $handle |
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| 971 | * |
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| 972 | * @param resource $handle |
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| 973 | * @param string $boundary |
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| 974 | * @param bool $isEnd |
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| 975 | */ |
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| 976 | 51 | private function writeBoundary($handle, $boundary, $isEnd = false) |
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| 990 | |||
| 991 | /** |
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| 992 | * Writes out any necessary boundaries for the given $part if required based |
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| 993 | * on its $parent and $boundaryParent. |
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| 994 | * |
||
| 995 | * Also writes out end boundaries for the previous part if applicable. |
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| 996 | * |
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| 997 | * @param resource $handle |
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| 998 | * @param \ZBateson\MailMimeParser\MimePart $part |
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| 999 | * @param \ZBateson\MailMimeParser\MimePart $parent |
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| 1000 | * @param \ZBateson\MailMimeParser\MimePart $boundaryParent |
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| 1001 | * @param string $boundary |
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| 1002 | */ |
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| 1003 | 51 | private function writePartBoundaries($handle, MimePart $part, MimePart $parent, MimePart &$boundaryParent, $boundary) |
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| 1016 | |||
| 1017 | /** |
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| 1018 | * Writes out the passed mime part, writing out any necessary mime |
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| 1019 | * boundaries. |
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| 1020 | * |
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| 1021 | * @param resource $handle |
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| 1022 | * @param \ZBateson\MailMimeParser\MimePart $part |
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| 1023 | * @param \ZBateson\MailMimeParser\MimePart $parent |
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| 1024 | * @param \ZBateson\MailMimeParser\MimePart $boundaryParent |
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| 1025 | */ |
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| 1026 | 77 | private function writePartTo($handle, MimePart $part, MimePart $parent, MimePart &$boundaryParent) |
|
| 1044 | |||
| 1045 | /** |
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| 1046 | * Either returns $this for a non-text, non-html part, or returns |
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| 1047 | * $this->contentPart. |
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| 1048 | * |
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| 1049 | * Note that if Content-Disposition is set on the passed part, $this is |
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| 1050 | * always returned. |
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| 1051 | * |
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| 1052 | * @param \ZBateson\MailMimeParser\MimePart $part |
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| 1053 | * @return \ZBateson\MailMimeParser\MimePart |
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| 1054 | */ |
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| 1055 | 77 | private function getWriteParentForPart(MimePart $part) |
|
| 1066 | |||
| 1067 | /** |
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| 1068 | * Loops over parts of the message and writes them as an email to the |
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| 1069 | * provided $handle. |
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| 1070 | * |
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| 1071 | * The function rewrites mime parts in a multipart-mime message to be either |
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| 1072 | * alternatives of text/plain and text/html, or attachments because |
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| 1073 | * MailMimeParser doesn't currently maintain the structure of the original |
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| 1074 | * message. This means other alternative parts would be dropped to |
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| 1075 | * attachments, and multipart/related parts are completely ignored. |
||
| 1076 | * |
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| 1077 | * @param resource $handle the handle to write out to |
||
| 1078 | * @param Iterator $partsIter an Iterator for parts to save |
||
| 1079 | * @param \ZBateson\MailMimeParser\MimePart $curParent the current parent |
||
| 1080 | */ |
||
| 1081 | 77 | protected function writePartsTo($handle, Iterator $partsIter, MimePart $curParent) |
|
| 1095 | |||
| 1096 | /** |
||
| 1097 | * Saves the message as a MIME message to the passed resource handle. |
||
| 1098 | * |
||
| 1099 | * The saved message is not guaranteed to be the same as the parsed message. |
||
| 1100 | * Namely, for mime messages anything that is not text/html or text/plain |
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| 1101 | * will be moved into parts under the main 'message' as attachments, other |
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| 1102 | * alternative parts are dropped, and multipart/related parts are ignored |
||
| 1103 | * (their contents are either moved under a multipart/alternative part or as |
||
| 1104 | * attachments below the main multipart/mixed message). |
||
| 1105 | * |
||
| 1106 | * @param resource $handle |
||
| 1107 | */ |
||
| 1108 | 77 | public function save($handle) |
|
| 1135 | |||
| 1136 | /** |
||
| 1137 | * Writes out the content of the message into a string and returns it. |
||
| 1138 | * |
||
| 1139 | * @return string |
||
| 1140 | */ |
||
| 1141 | 7 | private function getSignableBodyFromParts(array $parts) |
|
| 1159 | |||
| 1160 | /** |
||
| 1161 | * Returns the content part of a signed message for a signature to be |
||
| 1162 | * calculated on the message. |
||
| 1163 | * |
||
| 1164 | * @return string |
||
| 1165 | */ |
||
| 1166 | 7 | public function getSignableBody() |
|
| 1185 | |||
| 1186 | /** |
||
| 1187 | * Shortcut to call Message::save with a php://temp stream and return the |
||
| 1188 | * written email message as a string. |
||
| 1189 | * |
||
| 1190 | * @return string |
||
| 1191 | */ |
||
| 1192 | public function __toString() |
||
| 1201 | } |
||
| 1202 |
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Unless you are absolutely sure that the expression can never be null because of other conditions, we strongly recommend to add an additional type check to your code: