Call to a member function idle() on null

[eisler]

Describe the bug when trying to use the console command "artisan imap:idle" I get from ImapIdleCommand.php the error message "Error Call to a member function idle() on null" after some debugging I found that checkFolder() works and getFolder() returns null.

To Reproduce

$foldername = "INBOX";
$info = $client->checkFolder($foldername);
$folder = $client->getFolder($foldername);
dump($info,$folder);

^ array:5 [
  "exists" => "3"
  "recent" => "0"
  "uidvalidity" => 1
  "uidnext" => 4
  "flags" => array:1 [
    0 => array:5 [
      0 => "\Flagged"
      1 => "\Seen"
      2 => "\Answered"
      3 => "\Deleted"
      4 => "\Draft"
    ]
  ]
]
^ null

Expected behavior After running the console command "artisan imap:idle", i expect it to run normally and listen for new messages.

Desktop / Server

• OS: Red Hat Enterprise Linux release 8.6 (Ootpa)
• PHP: 8.0.13
• Version: 2.4
• Server: Domino IMAP4 Server Release 11.0.1FP5

Additional context

config:

<?php
/*
* File:     imap.php
* Category: config
* Author:   M. Goldenbaum
* Created:  24.09.16 22:36
* Updated:  -
*
* Description:
*  -
*/

return [

    /*
    |--------------------------------------------------------------------------
    | IMAP default account
    |--------------------------------------------------------------------------
    |
    | The default account identifier. It will be used as default for any missing account parameters.
    | If however the default account is missing a parameter the package default will be used.
    | Set to 'false' [boolean] to disable this functionality.
    |
    */
    'default' => env('IMAP_DEFAULT_ACCOUNT', 'default'),

    /*
    |--------------------------------------------------------------------------
    | Default date format
    |--------------------------------------------------------------------------
    |
    | The default date format is used to convert any given Carbon::class object into a valid date string.
    | These are currently known working formats: "d-M-Y", "d-M-y", "d M y"
    |
    */
    'date_format' => 'd-M-Y',

    /*
    |--------------------------------------------------------------------------
    | Available IMAP accounts
    |--------------------------------------------------------------------------
    |
    | Please list all IMAP accounts which you are planning to use within the
    | array below.
    |
    */
    'accounts' => [

        'default' => [// account identifier
            'host'  => env('IMAP_HOST', 'localhost'),
            'port'  => env('IMAP_PORT', 993),
            'protocol'  => env('IMAP_PROTOCOL', 'imap'), //might also use imap, [pop3 or nntp (untested)]
            'encryption'    => env('IMAP_ENCRYPTION', 'false'), // Supported: false, 'ssl', 'tls', 'notls', 'starttls'
            'validate_cert' => env('IMAP_VALIDATE_CERT', false),
            'username' => env('IMAP_USERNAME', 'user@example.com'),
            'password' => env('IMAP_PASSWORD', 'password'),
            'authentication' => env('IMAP_AUTHENTICATION', null),
            'proxy' => [
                'socket' => null,
                'request_fulluri' => false,
                'username' => null,
                'password' => null,
            ]
        ],
    ],

    /*
    |--------------------------------------------------------------------------
    | Available IMAP options
    |--------------------------------------------------------------------------
    |
    | Available php imap config parameters are listed below
    |   -Delimiter (optional):
    |       This option is only used when calling $oClient->
    |       You can use any supported char such as ".", "/", (...)
    |   -Fetch option:
    |       IMAP::FT_UID  - Message marked as read by fetching the message body
    |       IMAP::FT_PEEK - Fetch the message without setting the "seen" flag
    |   -Fetch sequence id:
    |       IMAP::ST_UID  - Fetch message components using the message uid
    |       IMAP::ST_MSGN - Fetch message components using the message number
    |   -Body download option
    |       Default TRUE
    |   -Flag download option
    |       Default TRUE
    |   -Message key identifier option
    |       You can choose between 'id', 'number' or 'list'
    |       'id'     - Use the MessageID as array key (default, might cause hickups with yahoo mail)
    |       'number' - Use the message number as array key (isn't always unique and can cause some interesting behavior)
    |       'list'   - Use the message list number as array key (incrementing integer (does not always start at 0 or 1)
    |       'uid'    - Use the message uid as array key (isn't always unique and can cause some interesting behavior)
    |   -Fetch order
    |       'asc'  - Order all messages ascending (probably results in oldest first)
    |       'desc' - Order all messages descending (probably results in newest first)
    |   -Disposition types potentially considered an attachment
    |       Default ['attachment', 'inline']
    |   -Common folders
    |       Default folder locations and paths assumed if none is provided
    |   -Open IMAP options:
    |       DISABLE_AUTHENTICATOR - Disable authentication properties.
    |                               Use 'GSSAPI' if you encounter the following
    |                               error: "Kerberos error: No credentials cache
    |                               file found (try running kinit) (...)"
    |                               or ['GSSAPI','PLAIN'] if you are using outlook mail
    |   -Decoder options (currently only the message subject and attachment name decoder can be set)
    |       'utf-8' - Uses imap_utf8($string) to decode a string
    |       'mimeheader' - Uses mb_decode_mimeheader($string) to decode a string
    |
    */
    'options' => [
        'delimiter' => '/',
        'fetch' => \Webklex\PHPIMAP\IMAP::FT_PEEK,
        'sequence' => \Webklex\PHPIMAP\IMAP::ST_MSGN,
        'fetch_body' => true,
        'fetch_flags' => true,
        'message_key' => 'list',
        'fetch_order' => 'asc',
        'dispositions' => ['attachment', 'inline'],
        'common_folders' => [
            "root" => "INBOX",
            "junk" => "INBOX/Junk",
            "draft" => "INBOX/Drafts",
            "sent" => "INBOX/Sent",
            "trash" => "INBOX/Trash",
        ],
        'open' => [
            // 'DISABLE_AUTHENTICATOR' => 'GSSAPI'
        ],
        'decoder' => [
            'message' => 'utf-8', // mimeheader
            'attachment' => 'utf-8' // mimeheader
        ]
    ],

    /*
    |--------------------------------------------------------------------------
    | Available events
    |--------------------------------------------------------------------------
    |
    */
    'events' => [
        "message" => [
            'new' => \Webklex\IMAP\Events\MessageNewEvent::class,
            'moved' => \Webklex\IMAP\Events\MessageMovedEvent::class,
            'copied' => \Webklex\IMAP\Events\MessageCopiedEvent::class,
            'deleted' => \Webklex\IMAP\Events\MessageDeletedEvent::class,
            'restored' => \Webklex\IMAP\Events\MessageRestoredEvent::class,
        ],
        "folder" => [
            'new' => \Webklex\IMAP\Events\FolderNewEvent::class,
            'moved' => \Webklex\IMAP\Events\FolderMovedEvent::class,
            'deleted' => \Webklex\IMAP\Events\FolderDeletedEvent::class,
        ],
        "flag" => [
            'new' => \Webklex\IMAP\Events\FlagNewEvent::class,
            'deleted' => \Webklex\IMAP\Events\FlagDeletedEvent::class,
        ],
    ],

    /*
    |--------------------------------------------------------------------------
    | Available masking options
    |--------------------------------------------------------------------------
    |
    | By using your own custom masks you can implement your own methods for
    | a better and faster access and less code to write.
    |
    | Checkout the two examples custom_attachment_mask and custom_message_mask
    | for a quick start.
    |
    | The provided masks below are used as the default masks.
    */
    'masks' => [
        'message' => \Webklex\PHPIMAP\Support\Masks\MessageMask::class,
        'attachment' => \Webklex\PHPIMAP\Support\Masks\AttachmentMask::class
    ]
];

telnet test:

* OK Domino IMAP4 Server Release 11.0.1FP5 ready
a001 login user pass
a001 OK LOGIN completed
a002 list
* LIST (\Noselect) "\\" ""
a002 OK LIST completed
a003 select inbox
* 2 EXISTS
* 0 RECENT
* OK [UNSEEN 1] Message 1 is first unseen
* OK [UIDVALIDITY 1] UIDs valid
* OK [UIDNEXT 3] Predicted next UID
* FLAGS (\Flagged \Seen \Answered \Deleted \Draft)
* OK [PERMANENTFLAGS (\Flagged \Seen \Answered \Deleted \Draft \*)] Permanent flags
a003 OK [READ-WRITE] SELECT completed
a004 select INBOX
* 2 EXISTS
* 0 RECENT
* OK [UNSEEN 1] Message 1 is first unseen
* OK [UIDVALIDITY 1] UIDs valid
* OK [UIDNEXT 3] Predicted next UID
* FLAGS (\Flagged \Seen \Answered \Deleted \Draft)
* OK [PERMANENTFLAGS (\Flagged \Seen \Answered \Deleted \Draft \*)] Permanent flags
a004 OK [READ-WRITE] SELECT completed
a005 logout
* BYE logging out
a005 OK LOGOUT completed
Connection closed by foreign host.

[Webklex]

Hi @eisler , many thanks for your report. Can you check if you can get a hold on a call stack?

The Command utilizes the default account and the folder INBOX. Given that you've tested both and verified that they both exist / work, I'm a bit lost to imagine what could cause this issue in your case.

To further investigate, try to create a similar command and debug it step by step.

Best regards,

[eisler]

Hello @Webklex, Since I have found a quick and dirty solution, this has been running smoothly for a few months. Now I would like to ask for a real solution. How can we debug the problem?

[Webklex]

Hi @eisler , sure but I'm not sure what problem you are facing. Can you please share the call stack? This would give some insight :)

Please make sure you are using the latest version - or if you want to use the latest changes, give the master a try.

Best regards,