[Tickets #10434] Re: downloading a mailbox doesn't work

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Ticket URL: http://bugs.horde.org/ticket/10434
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  Ticket             | 10434
  Updated By         | Jan Schneider <jan at horde.org>
  Summary            | downloading a mailbox doesn't work
  Queue              | IMP
  Version            | Git master
  Type               | Bug
  State              | Feedback
  Priority           | 1. Low
  Milestone          |
  Patch              |
  Owners             |
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Jan Schneider <jan at horde.org> (2011-08-18 21:54) wrote:

>> Same here. I tried to step-debug it, but I got completely lost in the
>> Imap_Client code. Several times.
>
> You are both using caching.  Check to make sure the default fetch  
> entries are set correctly (Horde_Imap_Client::fetch(), line 2080;  
> $ret variable).  $ret should be an array with sequence numbers as  
> keys and empty Data objects as values.
>
> Then check the cached data in Horde_Imap_Client_Base::fetch() (line  
> 2117; $data variable).  Make sure that cached data is valid.
>
> If all looks good, check to make sure the return variable is still  
> correctly set before we start calling _fetch() to grab the data we  
> don't have (line 2204; foreach loop).

It looks good until there. For some reason this code is called twice,  
but both times the $ret contents looks fine:

array
   1 =>
     object(Horde_Imap_Client_Data_Fetch)[439]
       protected '_data' =>
         array
           14 => int 1
           13 => int 39078
           12 => int 5796

and

array
   1 =>
     object(Horde_Imap_Client_Data_Fetch)[477]
       protected '_data' =>
         array
           14 => int 1
           13 => int 39078
           9 =>
             object(Horde_Imap_Client_Data_Envelope)[591]
               protected '_data' =>
                 array
                   'date' =>
                     object(Horde_Imap_Client_DateTime)[592]
                       ...
                   'subject' => string '[Tickets #8353] Re: Sort out  
LDAP preferences mess with user bindings' (length=69)
                   'in_reply_to' => string  
'<whups-8353-fa27ef3ef6570e32a79e74deca7c1bc3 at bugs.horde.org>'  
(length=60)
                   'message_id' => string  
'<20090616114609.ooocc4w at bugs.horde.org>' (length=39)
                   'from' =>
                     array
                       ...
                   'to' =>
                     array
                       ...
           11 =>
             object(Horde_Imap_Client_DateTime)[593]
               private '_datetime' => null
               private '_error' => boolean false
               private '_string' => string '16-Jun-2009 17:48:14  
+0200' (length=26)

but after the _fetch() call, in the second run, $ret is empty. so  
these are contents of $ret after _fetch():

array
   1 =>
     object(Horde_Imap_Client_Data_Fetch)[439]
       protected '_data' =>
         array
           14 => int 1
           13 => int 39078
           12 => int 5796

and

array
   empty