Cannot assign null to property Webklex\PHPIMAP\Address::$host of type string

[felipehertzer]

Describe the bug
Hello, @Webklex
I have a problem reading messages from an inbox where the email was sent only to bbc without a proper "To".
When it happens the email header comes with the information below, being an invalid email address:

To: "Undisclosed Recipients" <>

'To' parsed with 'Webklex\PHPIMAP\Message->parseRawHeader()':

'to' => 
    array (
      0 => 
      (object) array(
         'mailbox' => 'Undisclosed Recipients',
         'host' => 'UNKNOWN',
      ),
      1 => 
      (object) array(
         'mailbox' => 'UNEXPECTED_DATA_AFTER_ADDRESS',
         'host' => '.SYNTAX-ERROR.',
      ),
    ),

These errors are showing in my log:

Uncaught ErrorException: PHP Request Shutdown: Unexpected characters at end of address: <> (errflg=3) in Unknown:0

Cannot assign null to property Webklex\PHPIMAP\Address::$host of type string

Thank you.

Code to Reproduce
The troubling code section which produces the reported bug.

$query = $folder
                ->query()
                ->setFetchOrderDesc()
                ->limit(50);
 $messages = $query->get();

Desktop / Server (please complete the following information):

• OS: MacOS
• PHP: 8.2
• Version 5.0.1
• Provider Postfix Server

Additional context

Cannot assign null to property Webklex\PHPIMAP\Address::$host of type string
Level
CRITICAL
Code
0
File
/var/task/vendor/webklex/php-imap/src/Address.php
Line
43
Trace
#0 /var/task/vendor/webklex/php-imap/src/Header.php(603): Webklex\PHPIMAP\Address->__construct()
#1 /var/task/vendor/webklex/php-imap/src/Header.php(558): Webklex\PHPIMAP\Header->parseAddresses()
#2 /var/task/vendor/webklex/php-imap/src/Header.php(182): Webklex\PHPIMAP\Header->extractAddresses()
#3 /var/task/vendor/webklex/php-imap/src/Header.php(64): Webklex\PHPIMAP\Header->parse()
#4 /var/task/vendor/webklex/php-imap/src/Message.php(512): Webklex\PHPIMAP\Header->__construct()
#5 /var/task/vendor/webklex/php-imap/src/Message.php(286): Webklex\PHPIMAP\Message->parseRawHeader()
#6 /var/task/vendor/webklex/php-imap/src/Query/Query.php(277): Webklex\PHPIMAP\Message::make()
#7 /var/task/vendor/webklex/php-imap/src/Query/Query.php(353): Webklex\PHPIMAP\Query\Query->make()
#8 /var/task/vendor/webklex/php-imap/src/Query/Query.php(315): Webklex\PHPIMAP\Query\Query->populate()
#9 /var/task/vendor/webklex/php-imap/src/Query/Query.php(378): Webklex\PHPIMAP\Query\Query->curate_messages()
#10 /var/task/app/Services/ImapService.php(141): Webklex\PHPIMAP\Query\Query->get()

[Webklex]

Hi @felipehertzer ,
thanks for the excellent report. Please update to v5.1 and give it another try.

The "PHP Notice: PHP Request Shutdown: Unexpected characters at end of address: <> (errflg=3) in Unknown on line 0" however, will persist and is caused by this line:
https://github.com/Webklex/php-imap/blob/5.1.0/src/Header.php#L233

If you have an idea on how to make it stop, please feel welcome to push a pull request :)

Best regards,

[felipehertzer]

Hi @Webklex, thank you for the fast reply, It is working now.

It seems that is only possible handle that errors with IMAP functions using the PHP functions:

imap_errors();
imap_alerts();

I will do some tests, if I can find other solution I will send a pull request.

Thank you.