[Help-smalltalk] [bug] POP client crashes when an email has an attachment

[Stephen Woolerton]

Issue status update for 
http://smalltalk.gnu.org/node/178
Post a follow up: 
http://smalltalk.gnu.org/project/comments/add/178

Project:      GNU Smalltalk
Version:      <none>
Component:    NetClients
Category:     bug reports
Priority:     normal
Assigned to:  Unassigned
Reported by:  swoolerton
Updated by:   swoolerton
Status:       active

Sample code ...


$ cat ./popTest2.st 
#! /usr/bin/gst  -f
PackageLoader fileInPackages: #('NetClients')!
   | client host username password popClient |
   host := 'mailhost'.
   username := 'mailuser'.
   password := 'mailpw'.
   client := NetClients.POP.POPClient connectToHost: host.
   [client
       username: username
       password: password.
       client login.
       Transcript showCr: 'New messages: ', client newMessagesCount
printString.
       Transcript showCr: 'bytes ', client newMessagesSize
printString.
       Transcript showCr: 'ids ', client newMessagesIds printString.
       Transcript showCr: 'sizes ', client newMessages printString.
       client
           getNewMailMessages: [:mimeEntity | 
              "mimeEntity inspect."]
           delete: false
   ] ensure: [client close] ! 


Note: In code above, the statement  
'mimeEntity inspect' has been commented out and the program still
crashes.

Program run

$ ./popTest2.st 
New messages: 1
bytes 583868
ids (1 )
sizes LookupTable (
       1->583868
)
Object: POPProtocolInterpreter new "<-0x4c7f6e48>" error: Protocol
error: 
NetClients.ProtocolError(Exception)>>signal
NetClients.ProtocolError(Exception)>>signal:
NetClients.POP.POPProtocolInterpreter(NetClients.NetProtocolInterpreter)>>protocolError:
[] in NetClients.POP.POPProtocolInterpreter>>checkResponse:
NetClients.POP.POPProtocolInterpreter>>checkResponse:ifError:
NetClients.POP.POPProtocolInterpreter>>checkResponse:
NetClients.POP.POPProtocolInterpreter(NetClients.NetProtocolInterpreter)>>checkResponse
NetClients.POP.POPProtocolInterpreter>>popQuit
NetClients.POP.POPClient>>logout
NetClients.POP.POPClient(NetClients.NetClient)>>close
optimized [] in UndefinedObject>>executeStatements
BlockClosure>>ensure:
UndefinedObject>>executeStatements


If it helps, I have found that I can delete messages with attachments.
The program will still crash, however the message with the attachment
does get deleted. e.g.
   client
       getNewMailMessages: [:m | ]
       delete: true
   ] ensure: [client close] !  !


Type of attachment doesn't seem to make a difference. For example, the
attachment in the example above was a .png file. Non-delivery reports
from a Postfix mail server have attachments and also cause a crash.