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<?php
/*
* File: Query.php
* Category: -
* Author: M. Goldenbaum
* Created: 21.07.18 18:54
* Updated: -
*
* Description:
* -
*/
namespace Webklex\PHPIMAP\Query;
use Carbon\Carbon;
use Exception;
use Illuminate\Pagination\LengthAwarePaginator;
use Illuminate\Support\Collection;
use ReflectionException;
use Webklex\PHPIMAP\Client;
use Webklex\PHPIMAP\ClientManager;
use Webklex\PHPIMAP\Exceptions\ConnectionFailedException;
use Webklex\PHPIMAP\Exceptions\EventNotFoundException;
use Webklex\PHPIMAP\Exceptions\GetMessagesFailedException;
use Webklex\PHPIMAP\Exceptions\InvalidMessageDateException;
use Webklex\PHPIMAP\Exceptions\MessageContentFetchingException;
use Webklex\PHPIMAP\Exceptions\MessageFlagException;
use Webklex\PHPIMAP\Exceptions\MessageHeaderFetchingException;
use Webklex\PHPIMAP\Exceptions\MessageNotFoundException;
use Webklex\PHPIMAP\Exceptions\MessageSearchValidationException;
use Webklex\PHPIMAP\Exceptions\RuntimeException;
use Webklex\PHPIMAP\IMAP;
use Webklex\PHPIMAP\Message;
use Webklex\PHPIMAP\Support\MessageCollection;
/**
* Class Query
*
* @package Webklex\PHPIMAP\Query
*/
class Query {
/** @var Collection $query */
protected $query;
/** @var string $raw_query */
protected $raw_query;
/** @var string $charset */
protected $charset;
/** @var Client $client */
protected $client;
/** @var int $limit */
protected $limit = null;
/** @var int $page */
protected $page = 1;
/** @var int $fetch_options */
protected $fetch_options = null;
/** @var int $fetch_body */
protected $fetch_body = true;
/** @var int $fetch_flags */
protected $fetch_flags = true;
/** @var int $sequence */
protected $sequence = IMAP::NIL;
/** @var string $fetch_order */
protected $fetch_order;
/** @var string $date_format */
protected $date_format;
/** @var bool $soft_fail */
protected $soft_fail = false;
/** @var array $errors */
protected $errors = [];
/**
* Query constructor.
* @param Client $client
* @param string $charset
*/
public function __construct(Client $client, $charset = 'UTF-8') {
$this->setClient($client);
$this->sequence = ClientManager::get('options.sequence', IMAP::ST_MSGN);
if (ClientManager::get('options.fetch') === IMAP::FT_PEEK) $this->leaveUnread();
if (ClientManager::get('options.fetch_order') === 'desc') {
$this->fetch_order = 'desc';
} else {
$this->fetch_order = 'asc';
}
$this->date_format = ClientManager::get('date_format', 'd M y');
$this->soft_fail = ClientManager::get('options.soft_fail', false);
$this->charset = $charset;
$this->query = new Collection();
$this->boot();
}
/**
* Instance boot method for additional functionality
*/
protected function boot() {
}
/**
* Parse a given value
* @param mixed $value
*
* @return string
*/
protected function parse_value($value) {
switch (true) {
case $value instanceof Carbon:
$value = $value->format($this->date_format);
break;
}
return (string)$value;
}
/**
* Check if a given date is a valid carbon object and if not try to convert it
* @param string|Carbon $date
*
* @return Carbon
* @throws MessageSearchValidationException
*/
protected function parse_date($date) {
if ($date instanceof Carbon) return $date;
try {
$date = Carbon::parse($date);
} catch (Exception $e) {
throw new MessageSearchValidationException();
}
return $date;
}
/**
* Get the raw IMAP search query
*
* @return string
*/
public function generate_query() {
$query = '';
$this->query->each(function($statement) use (&$query) {
if (count($statement) == 1) {
$query .= $statement[0];
} else {
if ($statement[1] === null) {
$query .= $statement[0];
} else {
$query .= $statement[0] . ' "' . $statement[1] . '"';
}
}
$query .= ' ';
});
$this->raw_query = trim($query);
return $this->raw_query;
}
/**
* Perform an imap search request
*
* @return Collection
* @throws GetMessagesFailedException
*/
protected function search() {
$this->generate_query();
try {
$available_messages = $this->client->getConnection()->search([$this->getRawQuery()], $this->sequence == IMAP::ST_UID);
return $available_messages !== false ? new Collection($available_messages) : new Collection();
} catch (RuntimeException $e) {
throw new GetMessagesFailedException("failed to fetch messages", 0, $e);
} catch (ConnectionFailedException $e) {
throw new GetMessagesFailedException("failed to fetch messages", 0, $e);
}
}
/**
* Count all available messages matching the current search criteria
*
* @return int
* @throws GetMessagesFailedException
*/
public function count() {
return $this->search()->count();
}
/**
* Fetch a given id collection
* @param Collection $available_messages
*
* @return array
* @throws ConnectionFailedException
* @throws RuntimeException
*/
protected function fetch($available_messages) {
if ($this->fetch_order === 'desc') {
$available_messages = $available_messages->reverse();
}
$uids = $available_messages->forPage($this->page, $this->limit)->toArray();
$flags = $this->client->getConnection()->flags($uids, $this->sequence == IMAP::ST_UID);
$headers = $this->client->getConnection()->headers($uids, "RFC822", $this->sequence == IMAP::ST_UID);
$contents = [];
if ($this->getFetchBody()) {
$contents = $this->client->getConnection()->content($uids, "RFC822", $this->sequence == IMAP::ST_UID);
}
return [
"uids" => $uids,
"flags" => $flags,
"headers" => $headers,
"contents" => $contents,
];
}
/**
* Make a new message from given raw components
* @param integer $uid
* @param integer $msglist
* @param string $header
* @param string $content
* @param array $flags
*
* @return Message|null
* @throws ConnectionFailedException
* @throws EventNotFoundException
* @throws GetMessagesFailedException
* @throws ReflectionException
*/
protected function make($uid, $msglist, $header, $content, $flags){
try {
return Message::make($uid, $msglist, $this->getClient(), $header, $content, $flags, $this->getFetchOptions(), $this->sequence);
}catch (MessageNotFoundException $e) {
$this->setError($uid, $e);
}catch (RuntimeException $e) {
$this->setError($uid, $e);
}catch (MessageFlagException $e) {
$this->setError($uid, $e);
}catch (InvalidMessageDateException $e) {
$this->setError($uid, $e);
}catch (MessageContentFetchingException $e) {
$this->setError($uid, $e);
}
$this->handleException($uid);
return null;
}
/**
* Get the message key for a given message
* @param string $message_key
* @param integer $msglist
* @param Message $message
*
* @return string
*/
protected function getMessageKey($message_key, $msglist, $message){
switch ($message_key) {
case 'number':
$key = $message->getMessageNo();
break;
case 'list':
$key = $msglist;
break;
case 'uid':
$key = $message->getUid();
break;
default:
$key = $message->getMessageId();
break;
}
return (string)$key;
}
/**
* Populate a given id collection and receive a fully fetched message collection
* @param Collection $available_messages
*
* @return MessageCollection
* @throws ConnectionFailedException
* @throws EventNotFoundException
* @throws GetMessagesFailedException
* @throws ReflectionException
* @throws RuntimeException
*/
protected function populate($available_messages) {
$messages = MessageCollection::make([]);
$messages->total($available_messages->count());
$message_key = ClientManager::get('options.message_key');
$raw_messages = $this->fetch($available_messages);
$msglist = 0;
foreach ($raw_messages["headers"] as $uid => $header) {
$content = isset($raw_messages["contents"][$uid]) ? $raw_messages["contents"][$uid] : "";
$flag = isset($raw_messages["flags"][$uid]) ? $raw_messages["flags"][$uid] : [];
$message = $this->make($uid, $msglist, $header, $content, $flag);
if ($message !== null) {
$key = $this->getMessageKey($message_key, $msglist, $message);
$messages->put("$key", $message);
}
$msglist++;
}
return $messages;
}
/**
* Fetch the current query and return all found messages
*
* @return MessageCollection
* @throws GetMessagesFailedException
*/
public function get() {
$available_messages = $this->search();
try {
if ($available_messages->count() > 0) {
return $this->populate($available_messages);
}
return MessageCollection::make([]);
} catch (Exception $e) {
throw new GetMessagesFailedException($e->getMessage(), 0, $e);
}
}
/**
* Fetch the current query as chunked requests
* @param callable $callback
* @param int $chunk_size
* @param int $start_chunk
*
* @throws ConnectionFailedException
* @throws EventNotFoundException
* @throws GetMessagesFailedException
* @throws ReflectionException
* @throws RuntimeException
*/
public function chunked($callback, $chunk_size = 10, $start_chunk = 1) {
$available_messages = $this->search();
if (($available_messages_count = $available_messages->count()) > 0) {
$old_limit = $this->limit;
$old_page = $this->page;
$this->limit = $chunk_size;
$this->page = $start_chunk;
do {
$messages = $this->populate($available_messages);
$callback($messages, $this->page);
$this->page++;
} while ($this->limit * $this->page <= $available_messages_count);
$this->limit = $old_limit;
$this->page = $old_page;
}
}
/**
* Paginate the current query
* @param int $per_page Results you which to receive per page
* @param int|null $page The current page you are on (e.g. 0, 1, 2, ...) use `null` to enable auto mode
* @param string $page_name The page name / uri parameter used for the generated links and the auto mode
*
* @return LengthAwarePaginator
* @throws GetMessagesFailedException
*/
public function paginate($per_page = 5, $page = null, $page_name = 'imap_page') {
if (
$page === null
&& isset($_GET[$page_name])
&& $_GET[$page_name] > 0
) {
$this->page = intval($_GET[$page_name]);
} elseif ($page > 0) {
$this->page = $page;
}
$this->limit = $per_page;
return $this->get()->paginate($per_page, $this->page, $page_name, true);
}
/**
* Get a new Message instance
* @param int $uid
* @param int|null $msglist
* @param int|null $sequence
*
* @return Message
* @throws ConnectionFailedException
* @throws RuntimeException
* @throws InvalidMessageDateException
* @throws MessageContentFetchingException
* @throws MessageHeaderFetchingException
* @throws EventNotFoundException
* @throws MessageFlagException
* @throws MessageNotFoundException
*/
public function getMessage($uid, $msglist = null, $sequence = null) {
return new Message($uid, $msglist, $this->getClient(), $this->getFetchOptions(), $this->getFetchBody(), $this->getFetchFlags(), $sequence ? $sequence : $this->sequence);
}
/**
* Get a message by its message number
* @param $msgn
* @param int|null $msglist
*
* @return Message
* @throws ConnectionFailedException
* @throws InvalidMessageDateException
* @throws MessageContentFetchingException
* @throws MessageHeaderFetchingException
* @throws RuntimeException
* @throws EventNotFoundException
* @throws MessageFlagException
* @throws MessageNotFoundException
*/
public function getMessageByMsgn($msgn, $msglist = null) {
return $this->getMessage($msgn, $msglist, IMAP::ST_MSGN);
}
/**
* Get a message by its uid
* @param $uid
*
* @return Message
* @throws ConnectionFailedException
* @throws InvalidMessageDateException
* @throws MessageContentFetchingException
* @throws MessageHeaderFetchingException
* @throws RuntimeException
* @throws EventNotFoundException
* @throws MessageFlagException
* @throws MessageNotFoundException
*/
public function getMessageByUid($uid) {
return $this->getMessage($uid, null, IMAP::ST_UID);
}
/**
* Don't mark messages as read when fetching
*
* @return $this
*/
public function leaveUnread() {
$this->setFetchOptions(IMAP::FT_PEEK);
return $this;
}
/**
* Mark all messages as read when fetching
*
* @return $this
*/
public function markAsRead() {
$this->setFetchOptions(IMAP::FT_UID);
return $this;
}
/**
* Set the sequence type
* @param int $sequence
*
* @return $this
*/
public function setSequence($sequence) {
$this->sequence = $sequence != IMAP::ST_MSGN ? IMAP::ST_UID : $sequence;
return $this;
}
/**
* @return Client
* @throws ConnectionFailedException
*/
public function getClient() {
$this->client->checkConnection();
return $this->client;
}
/**
* Set the limit and page for the current query
* @param int $limit
* @param int $page
*
* @return $this
*/
public function limit($limit, $page = 1) {
if ($page >= 1) $this->page = $page;
$this->limit = $limit;
return $this;
}
/**
* @return Collection
*/
public function getQuery() {
return $this->query;
}
/**
* @param array $query
* @return Query
*/
public function setQuery($query) {
$this->query = new Collection($query);
return $this;
}
/**
* @return string
*/
public function getRawQuery() {
return $this->raw_query;
}
/**
* @param string $raw_query
* @return Query
*/
public function setRawQuery($raw_query) {
$this->raw_query = $raw_query;
return $this;
}
/**
* @return string
*/
public function getCharset() {
return $this->charset;
}
/**
* @param string $charset
* @return Query
*/
public function setCharset($charset) {
$this->charset = $charset;
return $this;
}
/**
* @param Client $client
* @return Query
*/
public function setClient(Client $client) {
$this->client = $client;
return $this;
}
/**
* @return int
*/
public function getLimit() {
return $this->limit;
}
/**
* @param int $limit
* @return Query
*/
public function setLimit($limit) {
$this->limit = $limit <= 0 ? null : $limit;
return $this;
}
/**
* @return int
*/
public function getPage() {
return $this->page;
}
/**
* @param int $page
* @return Query
*/
public function setPage($page) {
$this->page = $page;
return $this;
}
/**
* @param boolean $fetch_options
* @return Query
*/
public function setFetchOptions($fetch_options) {
$this->fetch_options = $fetch_options;
return $this;
}
/**
* @param boolean $fetch_options
* @return Query
*/
public function fetchOptions($fetch_options) {
return $this->setFetchOptions($fetch_options);
}
/**
* @return int
*/
public function getFetchOptions() {
return $this->fetch_options;
}
/**
* @return boolean
*/
public function getFetchBody() {
return $this->fetch_body;
}
/**
* @param boolean $fetch_body
* @return Query
*/
public function setFetchBody($fetch_body) {
$this->fetch_body = $fetch_body;
return $this;
}
/**
* @param boolean $fetch_body
* @return Query
*/
public function fetchBody($fetch_body) {
return $this->setFetchBody($fetch_body);
}
/**
* @return int
*/
public function getFetchFlags() {
return $this->fetch_flags;
}
/**
* @param int $fetch_flags
* @return Query
*/
public function setFetchFlags($fetch_flags) {
$this->fetch_flags = $fetch_flags;
return $this;
}
/**
* @param string $fetch_order
* @return Query
*/
public function setFetchOrder($fetch_order) {
$fetch_order = strtolower($fetch_order);
if (in_array($fetch_order, ['asc', 'desc'])) {
$this->fetch_order = $fetch_order;
}
return $this;
}
/**
* @param string $fetch_order
* @return Query
*/
public function fetchOrder($fetch_order) {
return $this->setFetchOrder($fetch_order);
}
/**
* @return string
*/
public function getFetchOrder() {
return $this->fetch_order;
}
/**
* @return Query
*/
public function setFetchOrderAsc() {
return $this->setFetchOrder('asc');
}
/**
* @return Query
*/
public function fetchOrderAsc() {
return $this->setFetchOrderAsc();
}
/**
* @return Query
*/
public function setFetchOrderDesc() {
return $this->setFetchOrder('desc');
}
/**
* @return Query
*/
public function fetchOrderDesc() {
return $this->setFetchOrderDesc();
}
/**
* @var boolean $state
*
* @return Query
*/
public function softFail($state = true) {
return $this->setSoftFail($state);
}
/**
* @var boolean $state
*
* @return Query
*/
public function setSoftFail($state = true) {
$this->soft_fail = $state;
return $this;
}
/**
* @return boolean
*/
public function getSoftFail() {
return $this->soft_fail;
}
/**
* Handle the exception for a given uid
* @param integer $uid
*
* @throws GetMessagesFailedException
*/
protected function handleException($uid) {
if ($this->soft_fail === false && $this->hasError($uid)) {
$error = $this->getError($uid);
throw new GetMessagesFailedException($error->getMessage(), 0, $error);
}
}
/**
* Add a new error to the error holder
* @param integer $uid
* @param Exception $error
*/
protected function setError($uid, $error) {
$this->errors[$uid] = $error;
}
/**
* Check if there are any errors / exceptions present
* @var integer|null $uid
*
* @return boolean
*/
public function hasErrors($uid = null){
if ($uid !== null) {
return $this->hasError($uid);
}
return count($this->errors) > 0;
}
/**
* Check if there is an error / exception present
* @var integer $uid
*
* @return boolean
*/
public function hasError($uid){
return isset($this->errors[$uid]);
}
/**
* Get all available errors / exceptions
*
* @return array
*/
public function errors(){
return $this->getErrors();
}
/**
* Get all available errors / exceptions
*
* @return array
*/
public function getErrors(){
return $this->errors;
}
/**
* Get a specific error / exception
* @var integer $uid
*
* @return Exception|null
*/
public function error($uid){
return $this->getError($uid);
}
/**
* Get a specific error / exception
* @var integer $uid
*
* @return Exception|null
*/
public function getError($uid){
if ($this->hasError($uid)) {
return $this->errors[$uid];
}
return null;
}
}