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Message.php
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Message.php
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<?php
/*
* File: Message.php
* Category: -
* Author: M. Goldenbaum
* Created: 19.01.17 22:21
* Updated: -
*
* Description:
* -
*/
namespace Webklex\PHPIMAP;
use Exception;
use ReflectionClass;
use ReflectionException;
use Webklex\PHPIMAP\Exceptions\AuthFailedException;
use Webklex\PHPIMAP\Exceptions\ConnectionFailedException;
use Webklex\PHPIMAP\Exceptions\EventNotFoundException;
use Webklex\PHPIMAP\Exceptions\FolderFetchingException;
use Webklex\PHPIMAP\Exceptions\GetMessagesFailedException;
use Webklex\PHPIMAP\Exceptions\ImapBadRequestException;
use Webklex\PHPIMAP\Exceptions\ImapServerErrorException;
use Webklex\PHPIMAP\Exceptions\InvalidMessageDateException;
use Webklex\PHPIMAP\Exceptions\MaskNotFoundException;
use Webklex\PHPIMAP\Exceptions\MessageContentFetchingException;
use Webklex\PHPIMAP\Exceptions\MessageFlagException;
use Webklex\PHPIMAP\Exceptions\MessageHeaderFetchingException;
use Webklex\PHPIMAP\Exceptions\MessageNotFoundException;
use Webklex\PHPIMAP\Exceptions\MessageSizeFetchingException;
use Webklex\PHPIMAP\Exceptions\MethodNotFoundException;
use Webklex\PHPIMAP\Exceptions\ResponseException;
use Webklex\PHPIMAP\Exceptions\RuntimeException;
use Webklex\PHPIMAP\Support\AttachmentCollection;
use Webklex\PHPIMAP\Support\FlagCollection;
use Webklex\PHPIMAP\Support\Masks\MessageMask;
use Illuminate\Support\Str;
use Webklex\PHPIMAP\Support\MessageCollection;
use Webklex\PHPIMAP\Traits\HasEvents;
/**
* Class Message
*
* @package Webklex\PHPIMAP
*
* @property integer msglist
* @property integer uid
* @property integer msgn
* @property integer size
* @property Attribute subject
* @property Attribute message_id
* @property Attribute message_no
* @property Attribute references
* @property Attribute date
* @property Attribute from
* @property Attribute to
* @property Attribute cc
* @property Attribute bcc
* @property Attribute reply_to
* @property Attribute in_reply_to
* @property Attribute sender
*
* @method integer getMsglist()
* @method integer setMsglist($msglist)
* @method integer getUid()
* @method integer getMsgn()
* @method integer getSize()
* @method Attribute getPriority()
* @method Attribute getSubject()
* @method Attribute getMessageId()
* @method Attribute getMessageNo()
* @method Attribute getReferences()
* @method Attribute getDate()
* @method Attribute getFrom()
* @method Attribute getTo()
* @method Attribute getCc()
* @method Attribute getBcc()
* @method Attribute getReplyTo()
* @method Attribute getInReplyTo()
* @method Attribute getSender()
*/
class Message {
use HasEvents;
/**
* Client instance
*
* @var ?Client
*/
private ?Client $client;
/**
* Default mask
*
* @var string $mask
*/
protected string $mask = MessageMask::class;
/**
* Used options
*
* @var array $options
*/
protected array $options = [];
/**
* All library configs
*
* @var Config $config
*/
protected Config $config;
/**
* Attribute holder
*
* @var Attribute[]|array $attributes
*/
protected array $attributes = [];
/**
* The message folder path
*
* @var string $folder_path
*/
protected string $folder_path;
/**
* Fetch body options
*
* @var ?integer
*/
public ?int $fetch_options = null;
/**
* @var integer
*/
protected int $sequence = IMAP::NIL;
/**
* Fetch body options
*
* @var bool
*/
public bool $fetch_body = true;
/**
* Fetch flags options
*
* @var bool
*/
public bool $fetch_flags = true;
/**
* @var ?Header $header
*/
public ?Header $header = null;
/**
* Raw message body
*
* @var string $raw_body
*/
protected string $raw_body = "";
/**
* Message structure
*
* @var ?Structure $structure
*/
protected ?Structure $structure = null;
/**
* Message body components
*
* @var array $bodies
*/
public array $bodies = [];
/** @var AttachmentCollection $attachments */
public AttachmentCollection $attachments;
/** @var FlagCollection $flags */
public FlagCollection $flags;
/**
* A list of all available and supported flags
*
* @var ?array $available_flags
*/
private ?array $available_flags = null;
/**
* Message constructor.
* @param integer $uid
* @param integer|null $msglist
* @param Client $client
* @param integer|null $fetch_options
* @param boolean $fetch_body
* @param boolean $fetch_flags
* @param integer|null $sequence
*
* @throws AuthFailedException
* @throws ConnectionFailedException
* @throws EventNotFoundException
* @throws ImapBadRequestException
* @throws ImapServerErrorException
* @throws InvalidMessageDateException
* @throws MessageContentFetchingException
* @throws MessageFlagException
* @throws MessageHeaderFetchingException
* @throws RuntimeException
* @throws ResponseException
*/
public function __construct(int $uid, ?int $msglist, Client $client, int $fetch_options = null, bool $fetch_body = false, bool $fetch_flags = false, int $sequence = null) {
$this->boot($client->getConfig());
$default_mask = $client->getDefaultMessageMask();
if ($default_mask != null) {
$this->mask = $default_mask;
}
$this->events["message"] = $client->getDefaultEvents("message");
$this->events["flag"] = $client->getDefaultEvents("flag");
$this->folder_path = $client->getFolderPath();
$this->setSequence($sequence);
$this->setFetchOption($fetch_options);
$this->setFetchBodyOption($fetch_body);
$this->setFetchFlagsOption($fetch_flags);
$this->client = $client;
$this->client->openFolder($this->folder_path);
$this->setSequenceId($uid, $msglist);
if ($this->fetch_options == IMAP::FT_PEEK) {
$this->parseFlags();
}
$this->parseHeader();
if ($this->getFetchBodyOption() === true) {
$this->parseBody();
}
if ($this->getFetchFlagsOption() === true && $this->fetch_options !== IMAP::FT_PEEK) {
$this->parseFlags();
}
}
/**
* Create a new instance without fetching the message header and providing them raw instead
* @param int $uid
* @param int|null $msglist
* @param Client $client
* @param string $raw_header
* @param string $raw_body
* @param array $raw_flags
* @param null $fetch_options
* @param null $sequence
*
* @return Message
* @throws AuthFailedException
* @throws ConnectionFailedException
* @throws EventNotFoundException
* @throws ImapBadRequestException
* @throws ImapServerErrorException
* @throws InvalidMessageDateException
* @throws MessageContentFetchingException
* @throws MessageFlagException
* @throws ReflectionException
* @throws RuntimeException
* @throws ResponseException
*/
public static function make(int $uid, ?int $msglist, Client $client, string $raw_header, string $raw_body, array $raw_flags, $fetch_options = null, $sequence = null): Message {
$reflection = new ReflectionClass(self::class);
/** @var Message $instance */
$instance = $reflection->newInstanceWithoutConstructor();
$instance->boot($client->getConfig());
$default_mask = $client->getDefaultMessageMask();
if ($default_mask != null) {
$instance->setMask($default_mask);
}
$instance->setEvents([
"message" => $client->getDefaultEvents("message"),
"flag" => $client->getDefaultEvents("flag"),
]);
$instance->setFolderPath($client->getFolderPath());
$instance->setSequence($sequence);
$instance->setFetchOption($fetch_options);
$instance->setClient($client);
$instance->setSequenceId($uid, $msglist);
$instance->parseRawHeader($raw_header);
$instance->parseRawFlags($raw_flags);
$instance->parseRawBody($raw_body);
$instance->peek();
return $instance;
}
/**
* Create a new message instance by reading and loading a file or remote location
* @param string $filename
* @param ?Config $config
*
* @return Message
* @throws AuthFailedException
* @throws ConnectionFailedException
* @throws ImapBadRequestException
* @throws ImapServerErrorException
* @throws InvalidMessageDateException
* @throws MaskNotFoundException
* @throws MessageContentFetchingException
* @throws ReflectionException
* @throws ResponseException
* @throws RuntimeException
*/
public static function fromFile(string $filename, Config $config = null): Message {
$blob = file_get_contents($filename);
if ($blob === false) {
throw new RuntimeException("Unable to read file");
}
return self::fromString($blob, $config);
}
/**
* Create a new message instance by reading and loading a string
* @param string $blob
* @param ?Config $config
*
* @return Message
* @throws AuthFailedException
* @throws ConnectionFailedException
* @throws ImapBadRequestException
* @throws ImapServerErrorException
* @throws InvalidMessageDateException
* @throws MaskNotFoundException
* @throws MessageContentFetchingException
* @throws ReflectionException
* @throws ResponseException
* @throws RuntimeException
*/
public static function fromString(string $blob, Config $config = null): Message {
$reflection = new ReflectionClass(self::class);
/** @var Message $instance */
$instance = $reflection->newInstanceWithoutConstructor();
$instance->boot($config);
$default_mask = $instance->getConfig()->getMask("message");
if($default_mask != ""){
$instance->setMask($default_mask);
}else{
throw new MaskNotFoundException("Unknown message mask provided");
}
if(!str_contains($blob, "\r\n")){
$blob = str_replace("\n", "\r\n", $blob);
}
$raw_header = substr($blob, 0, strpos($blob, "\r\n\r\n"));
$raw_body = substr($blob, strlen($raw_header)+4);
$instance->parseRawHeader($raw_header);
$instance->parseRawBody($raw_body);
$instance->setUid(0);
return $instance;
}
/**
* Boot a new instance
* @param ?Config $config
*/
public function boot(Config $config = null): void {
$this->attributes = [];
$this->client = null;
$this->config = $config ?? Config::make();
$this->options = $this->config->get('options');
$this->available_flags = $this->config->get('flags');
$this->attachments = AttachmentCollection::make();
$this->flags = FlagCollection::make();
}
/**
* Call dynamic attribute setter and getter methods
* @param string $method
* @param array $arguments
*
* @return mixed
* @throws AuthFailedException
* @throws ConnectionFailedException
* @throws ImapBadRequestException
* @throws ImapServerErrorException
* @throws MessageNotFoundException
* @throws MethodNotFoundException
* @throws MessageSizeFetchingException
* @throws RuntimeException
* @throws ResponseException
*/
public function __call(string $method, array $arguments) {
if (strtolower(substr($method, 0, 3)) === 'get') {
$name = Str::snake(substr($method, 3));
return $this->get($name);
} elseif (strtolower(substr($method, 0, 3)) === 'set') {
$name = Str::snake(substr($method, 3));
if (in_array($name, array_keys($this->attributes))) {
return $this->__set($name, array_pop($arguments));
}
}
throw new MethodNotFoundException("Method " . self::class . '::' . $method . '() is not supported');
}
/**
* Magic setter
* @param $name
* @param $value
*
* @return mixed
*/
public function __set($name, $value) {
$this->attributes[$name] = $value;
return $this->attributes[$name];
}
/**
* Magic getter
* @param $name
*
* @return Attribute|mixed|null
* @throws AuthFailedException
* @throws ConnectionFailedException
* @throws ImapBadRequestException
* @throws ImapServerErrorException
* @throws MessageNotFoundException
* @throws MessageSizeFetchingException
* @throws RuntimeException
* @throws ResponseException
*/
public function __get($name) {
return $this->get($name);
}
/**
* Get an available message or message header attribute
* @param $name
*
* @return Attribute|mixed|null
* @throws AuthFailedException
* @throws ConnectionFailedException
* @throws ImapBadRequestException
* @throws ImapServerErrorException
* @throws MessageNotFoundException
* @throws RuntimeException
* @throws ResponseException
* @throws MessageSizeFetchingException
*/
public function get($name): mixed {
if (isset($this->attributes[$name]) && $this->attributes[$name] !== null) {
return $this->attributes[$name];
}
switch ($name){
case "uid":
$this->attributes[$name] = $this->client->getConnection()->getUid($this->msgn)->validate()->integer();
return $this->attributes[$name];
case "msgn":
$this->attributes[$name] = $this->client->getConnection()->getMessageNumber($this->uid)->validate()->integer();
return $this->attributes[$name];
case "size":
if (!isset($this->attributes[$name])) {
$this->fetchSize();
}
return $this->attributes[$name];
}
return $this->header->get($name);
}
/**
* Check if the Message has a text body
*
* @return bool
*/
public function hasTextBody(): bool {
return isset($this->bodies['text']) && $this->bodies['text'] !== "";
}
/**
* Get the Message text body
*
* @return string
*/
public function getTextBody(): string {
if (!isset($this->bodies['text'])) {
return "";
}
return $this->bodies['text'];
}
/**
* Check if the Message has a html body
*
* @return bool
*/
public function hasHTMLBody(): bool {
return isset($this->bodies['html']) && $this->bodies['html'] !== "";
}
/**
* Get the Message html body
*
* @return string
*/
public function getHTMLBody(): string {
if (!isset($this->bodies['html'])) {
return "";
}
return $this->bodies['html'];
}
/**
* Parse all defined headers
*
* @throws AuthFailedException
* @throws ConnectionFailedException
* @throws ImapBadRequestException
* @throws ImapServerErrorException
* @throws RuntimeException
* @throws InvalidMessageDateException
* @throws MessageHeaderFetchingException
* @throws ResponseException
*/
private function parseHeader(): void {
$sequence_id = $this->getSequenceId();
$headers = $this->client->getConnection()->headers([$sequence_id], "RFC822", $this->sequence)->validatedData();
if (!isset($headers[$sequence_id])) {
throw new MessageHeaderFetchingException("no headers found", 0);
}
$this->parseRawHeader($headers[$sequence_id]);
}
/**
* @param string $raw_header
*
* @throws InvalidMessageDateException
*/
public function parseRawHeader(string $raw_header): void {
$this->header = new Header($raw_header, $this->getConfig());
}
/**
* Parse additional raw flags
* @param array $raw_flags
*/
public function parseRawFlags(array $raw_flags): void {
$this->flags = FlagCollection::make();
foreach ($raw_flags as $flag) {
if (str_starts_with($flag, "\\")) {
$flag = substr($flag, 1);
}
$flag_key = strtolower($flag);
if ($this->available_flags === null || in_array($flag_key, $this->available_flags)) {
$this->flags->put($flag_key, $flag);
}
}
}
/**
* Parse additional flags
*
* @return void
* @throws AuthFailedException
* @throws ConnectionFailedException
* @throws ImapBadRequestException
* @throws ImapServerErrorException
* @throws MessageFlagException
* @throws RuntimeException
* @throws ResponseException
*/
private function parseFlags(): void {
$this->client->openFolder($this->folder_path);
$this->flags = FlagCollection::make();
$sequence_id = $this->getSequenceId();
try {
$flags = $this->client->getConnection()->flags([$sequence_id], $this->sequence)->validatedData();
} catch (Exceptions\RuntimeException $e) {
throw new MessageFlagException("flag could not be fetched", 0, $e);
}
if (isset($flags[$sequence_id])) {
$this->parseRawFlags($flags[$sequence_id]);
}
}
/**
* Parse the Message body
*
* @return Message
* @throws AuthFailedException
* @throws ConnectionFailedException
* @throws EventNotFoundException
* @throws ImapBadRequestException
* @throws ImapServerErrorException
* @throws InvalidMessageDateException
* @throws MessageContentFetchingException
* @throws MessageFlagException
* @throws RuntimeException
* @throws ResponseException
*/
public function parseBody(): Message {
$this->client->openFolder($this->folder_path);
$sequence_id = $this->getSequenceId();
try {
$contents = $this->client->getConnection()->content([$sequence_id], "RFC822", $this->sequence)->validatedData();
} catch (Exceptions\RuntimeException $e) {
throw new MessageContentFetchingException("failed to fetch content", 0, $e);
}
if (!isset($contents[$sequence_id])) {
throw new MessageContentFetchingException("no content found", 0);
}
$content = $contents[$sequence_id];
$body = $this->parseRawBody($content);
$this->peek();
return $body;
}
/**
* Fetches the size for this message.
*
* @throws AuthFailedException
* @throws ConnectionFailedException
* @throws ImapBadRequestException
* @throws ImapServerErrorException
* @throws MessageSizeFetchingException
* @throws ResponseException
* @throws RuntimeException
*/
private function fetchSize(): void {
$sequence_id = $this->getSequenceId();
$sizes = $this->client->getConnection()->sizes([$sequence_id], $this->sequence)->validatedData();
if (!isset($sizes[$sequence_id])) {
throw new MessageSizeFetchingException("sizes did not set an array entry for the supplied sequence_id", 0);
}
$this->attributes["size"] = $sizes[$sequence_id];
}
/**
* Handle auto "Seen" flag handling
*
* @throws AuthFailedException
* @throws ConnectionFailedException
* @throws EventNotFoundException
* @throws ImapBadRequestException
* @throws ImapServerErrorException
* @throws MessageFlagException
* @throws RuntimeException
* @throws ResponseException
*/
public function peek(): void {
if ($this->fetch_options == IMAP::FT_PEEK) {
if ($this->getFlags()->get("seen") == null) {
$this->unsetFlag("Seen");
}
} elseif ($this->getFlags()->get("seen") == null) {
$this->setFlag("Seen");
}
}
/**
* Parse a given message body
* @param string $raw_body
*
* @return Message
* @throws AuthFailedException
* @throws ConnectionFailedException
* @throws ImapBadRequestException
* @throws ImapServerErrorException
* @throws InvalidMessageDateException
* @throws MessageContentFetchingException
* @throws RuntimeException
* @throws ResponseException
*/
public function parseRawBody(string $raw_body): Message {
$this->structure = new Structure($raw_body, $this->header);
$this->fetchStructure($this->structure);
return $this;
}
/**
* Fetch the Message structure
* @param Structure $structure
*
* @throws AuthFailedException
* @throws ConnectionFailedException
* @throws ImapBadRequestException
* @throws ImapServerErrorException
* @throws RuntimeException
* @throws ResponseException
*/
private function fetchStructure(Structure $structure): void {
$this->client?->openFolder($this->folder_path);
foreach ($structure->parts as $part) {
$this->fetchPart($part);
}
}
/**
* Fetch a given part
* @param Part $part
*/
private function fetchPart(Part $part): void {
if ($part->isAttachment()) {
$this->fetchAttachment($part);
} else {
$encoding = $this->getEncoding($part);
$content = $this->decodeString($part->content, $part->encoding);
// We don't need to do convertEncoding() if charset is ASCII (us-ascii):
// ASCII is a subset of UTF-8, so all ASCII files are already UTF-8 encoded
// https://stackoverflow.com/a/11303410
//
// us-ascii is the same as ASCII:
// ASCII is the traditional name for the encoding system; the Internet Assigned Numbers Authority (IANA)
// prefers the updated name US-ASCII, which clarifies that this system was developed in the US and
// based on the typographical symbols predominantly in use there.
// https://en.wikipedia.org/wiki/ASCII
//
// convertEncoding() function basically means convertToUtf8(), so when we convert ASCII string into UTF-8 it gets broken.
if ($encoding != 'us-ascii') {
$content = $this->convertEncoding($content, $encoding);
}
$this->addBody($part->subtype ?? '', $content);
}
}
/**
* Add a body to the message
* @param string $subtype
* @param string $content
*
* @return void
*/
protected function addBody(string $subtype, string $content): void {
$subtype = strtolower($subtype);
$subtype = $subtype == "plain" || $subtype == "" ? "text" : $subtype;
if (isset($this->bodies[$subtype]) && $this->bodies[$subtype] !== null && $this->bodies[$subtype] !== "") {
if ($content !== "") {
$this->bodies[$subtype] .= "\n".$content;
}
} else {
$this->bodies[$subtype] = $content;
}
}
/**
* Fetch the Message attachment
* @param Part $part
*/
protected function fetchAttachment(Part $part): void {
$oAttachment = new Attachment($this, $part);
if ($oAttachment->getSize() > 0) {
if ($oAttachment->getId() !== null && $this->attachments->offsetExists($oAttachment->getId())) {
$this->attachments->put($oAttachment->getId(), $oAttachment);
} else {
$this->attachments->push($oAttachment);
}
}
}
/**
* Fail proof setter for $fetch_option
* @param $option
*
* @return Message
*/
public function setFetchOption($option): Message {
if (is_long($option) === true) {
$this->fetch_options = $option;
} elseif (is_null($option) === true) {
$config = $this->config->get('options.fetch', IMAP::FT_UID);
$this->fetch_options = is_long($config) ? $config : 1;
}
return $this;
}
/**
* Set the sequence type
* @param int|null $sequence
*
* @return Message
*/
public function setSequence(?int $sequence): Message {
if (is_long($sequence)) {
$this->sequence = $sequence;
} elseif (is_null($sequence)) {
$config = $this->config->get('options.sequence', IMAP::ST_MSGN);
$this->sequence = is_long($config) ? $config : IMAP::ST_MSGN;
}
return $this;
}
/**
* Fail proof setter for $fetch_body
* @param $option
*
* @return Message
*/
public function setFetchBodyOption($option): Message {
if (is_bool($option)) {
$this->fetch_body = $option;
} elseif (is_null($option)) {
$config = $this->config->get('options.fetch_body', true);
$this->fetch_body = is_bool($config) ? $config : true;
}
return $this;
}
/**
* Fail proof setter for $fetch_flags
* @param $option
*
* @return Message
*/
public function setFetchFlagsOption($option): Message {
if (is_bool($option)) {
$this->fetch_flags = $option;
} elseif (is_null($option)) {
$config = $this->config->get('options.fetch_flags', true);
$this->fetch_flags = is_bool($config) ? $config : true;
}
return $this;
}
/**
* Decode a given string
* @param $string
* @param $encoding
*
* @return string
*/
public function decodeString($string, $encoding): string {
switch ($encoding) {
case IMAP::MESSAGE_ENC_BINARY:
if (extension_loaded('imap')) {
return base64_decode(\imap_binary($string));
}
return base64_decode($string);
case IMAP::MESSAGE_ENC_BASE64:
return base64_decode($string);
case IMAP::MESSAGE_ENC_QUOTED_PRINTABLE:
return quoted_printable_decode($string);
case IMAP::MESSAGE_ENC_8BIT:
case IMAP::MESSAGE_ENC_7BIT:
case IMAP::MESSAGE_ENC_OTHER:
default:
return $string;
}
}
/**
* Convert the encoding
* @param $str
* @param string $from
* @param string $to
*
* @return mixed|string
*/
public function convertEncoding($str, string $from = "ISO-8859-2", string $to = "UTF-8"): mixed {
$from = EncodingAliases::get($from);
$to = EncodingAliases::get($to);
if ($from === $to) {
return $str;
}
// We don't need to do convertEncoding() if charset is ASCII (us-ascii):
// ASCII is a subset of UTF-8, so all ASCII files are already UTF-8 encoded
// https://stackoverflow.com/a/11303410
//
// us-ascii is the same as ASCII:
// ASCII is the traditional name for the encoding system; the Internet Assigned Numbers Authority (IANA)
// prefers the updated name US-ASCII, which clarifies that this system was developed in the US and
// based on the typographical symbols predominantly in use there.
// https://en.wikipedia.org/wiki/ASCII
//
// convertEncoding() function basically means convertToUtf8(), so when we convert ASCII string into UTF-8 it gets broken.
if (strtolower($from ?? '') == 'us-ascii' && $to == 'UTF-8') {
return $str;
}
if (function_exists('iconv') && !EncodingAliases::isUtf7($from) && !EncodingAliases::isUtf7($to)) {
try {
return iconv($from, $to.'//IGNORE', $str);
} catch (Exception) {
return @iconv($from, $to, $str);
}
} else {
if (!$from) {
return mb_convert_encoding($str, $to);
}
return mb_convert_encoding($str, $to, $from);
}
}
/**
* Get the encoding of a given abject
* @param object|string $structure
*
* @return string
*/
public function getEncoding(object|string $structure): string {
if (property_exists($structure, 'parameters')) {
foreach ($structure->parameters as $parameter) {
if (strtolower($parameter->attribute) == "charset") {
return EncodingAliases::get($parameter->value, "ISO-8859-2");
}
}
} elseif (property_exists($structure, 'charset')) {
return EncodingAliases::get($structure->charset, "ISO-8859-2");
} elseif (is_string($structure) === true) {
return EncodingAliases::detectEncoding($structure);
}
return 'UTF-8';
}
/**
* Get the messages folder
*
* @return ?Folder
* @throws AuthFailedException
* @throws ConnectionFailedException
* @throws FolderFetchingException
* @throws ImapBadRequestException
* @throws ImapServerErrorException
* @throws RuntimeException
* @throws ResponseException
*/
public function getFolder(): ?Folder {
return $this->client->getFolderByPath($this->folder_path);
}
/**
* Create a message thread based on the current message
* @param Folder|null $sent_folder
* @param MessageCollection|null $thread
* @param Folder|null $folder
*
* @return MessageCollection
* @throws AuthFailedException
* @throws ConnectionFailedException
* @throws FolderFetchingException
* @throws GetMessagesFailedException
* @throws ImapBadRequestException
* @throws ImapServerErrorException
* @throws RuntimeException
* @throws ResponseException
*/
public function thread(Folder $sent_folder = null, MessageCollection &$thread = null, Folder $folder = null): MessageCollection {
$thread = $thread ?: MessageCollection::make();
$folder = $folder ?: $this->getFolder();
$sent_folder = $sent_folder ?: $this->client->getFolderByPath($this->config->get("options.common_folders.sent", "INBOX/Sent"));
/** @var Message $message */
foreach ($thread as $message) {
if ($message->message_id->first() == $this->message_id->first()) {
return $thread;
}
}
$thread->push($this);