[horde] error when communicating with the mail server after upgrade

[Michael M Slusarz]

Quoting Andrew Watkins <andrew at dcs.bbk.ac.uk>:

> On 04/30/15 13:38, Andrew Watkins wrote:
>> On 04/29/15 20:35, Arjen de Korte wrote:
>>> Citeren Andrew Watkins <andrew at dcs.bbk.ac.uk>:
>>>
>>>> Hi,
>>>>
>>>> Just wondered if any one else is seeing this error. I just  
>>>> upgraded to webmail 5.2.6 from 5.2.4 and get a "error when  
>>>> communicating with the mail server" when I reading the e-mails.
>>>>
>>>> - can log into horde webmail
>>>> - webmail displays the number of e-mails in inbox (Total = x)
>>>> - when I go to list the e-mails nothing appears and "error when  
>>>> communicating with the mail server"
>>>>
>>>> I have upgraded a few times before with no problems.
>>>>
>>>> cat imp/config/backends.local.php
>>>> $servers['imap'] = array(
>>>>    // Disabled by default
>>>>    'disabled' => false,
>>>>    'name' => 'IMAP Server',
>>>>    'hostspec' => 'imap.dcs.bbk.ac.uk',
>>>>    'hordeauth' => true,
>>>>    'protocol' => 'imap',
>>>>    'port' => 143,
>>>>    'secure' => 'false',
>>>>    'maildomain' => 'dcs.bbk.ac.uk',
>>>>    'smtphost' => 'smtp.dcs.bbk.ac.uk',
>>>>    'smtpport' => 25,
>>>>    'acl' => false,
>>>>    'cache' => false,
>>>>    'capability_ignore' => array('ESEARCH'),
>>>>    'imap_config' => array(
>>>>        'children' => false,
>>>>        'namespace' => array(
>>>>        ),
>>>>        'search_charset' => array(
>>>>            'UTF-8' => true
>>>>        )
>>>>    )
>>>> );
>>>
>>> The above backends.local.php is invalid. Do *not* define an array  
>>> in backends.local.php, but only override values that need changing  
>>> from the defaults provided in backends.php that is provided with  
>>> the version you're upgrading to. The correct format is in the  
>>> header and looks like
>>>
>>>   <?php
>>>   $servers['imap']['hostspec'] = 'imap.example.com';
>>>
>>> It also looks like you have missed quite a few changes in the IMP  
>>> configuration over time (and possibly other applications too).  
>>> Support for the 'smtphost' and 'smtpport' for instance was removed  
>>> with the IMP upgrade from 5.x to 6.x, so this won't work anymore.  
>>> Please have a look at
>>>
>>>   http://www.horde.org/apps/imp/docs/UPGRADING
>>>
>>> for a list of changes. It is worth looking into this *before* upgrading.
>>>
>> I have update my backends.local.php:
>>
>> $servers['imap']['name'] = 'IMAP Server';
>> $servers['imap']['disabled'] = false;
>> $servers['imap']['hostspec'] = 'imap.dcs.bbk.ac.uk';
>> $servers['imap']['hordeauth'] = true;
>> $servers['imap']['tls'] = 'tls';
>> $servers['imap']['maildomain'] = 'dcs.bbk.ac.uk';
>> $servers['imap']['smtp'] = array (
>>        'horde_auth' => false,
>>        'debug' => 'true',
>>        'lmtp' => false
>> );
>> $servers['imap']['acl'] = false;
>> $servers['imap']['debug'] = '/tmp/imp.log';
>> $servers['advanced']['capability_ignore'] = array('ESEARCH');
>>
>> but then I notice errors in the web server logs:
>>
>> PHP Fatal error:  Only variables can be passed by reference in  
>> /var/php/5.3/pear/Horde/Idna.php on line 42, referer:  
>> https://webmail.dcs.bbk.ac.uk/webmail/imp/dynamic.php?page=mailbox
>>
>> which refers to the lines:
>>
>> case 'INTL_UTS46':
>>            return idn_to_ascii($data, 0, INTL_IDNA_VARIANT_UTS46);
>>
>>
>> and then later on it fails to find Class 'Horde_Idna' since the above error.
>>
>> PHP Fatal error:  Class 'Horde_Idna' not found in  
>> /var/php/5.3/pear/Horde/Mail/Rfc822/Address.php on line 96,  
>> referer:  
>> https://webmail.dcs.bbk.ac.uk/webmail/imp/dynamic.php?page=mailbox
>>
>> I wonder if it is a compatible problem:
>> $ /usr/php/5.3/bin/pecl -V
>> PEAR Version: 1.9.5
>> PHP Version: 5.3.29
>> Zend Engine Version: 2.3.0
>> Running on: SunOS webmail-master 5.11 11.2 i86pc
>>
>> Andrew
>>
> Look like it is a bug with the "passed by reference", so altered the code:

There's no bug in the code.  You are most likely using the old broken  
idn PECL extensions rather than the built-in PHP intl version.

michael

___________________________________
Michael Slusarz [slusarz at horde.org]