Re: New line character after Content-type: causing SquirrelMail to display messages incorrectly

Adrian Hada wrote
> I encountered a problem using SquirrelMail which I wasn't able to solve
> using regular means or find in the mailing lists so far. The problem goes
> like this - some HTML e-mails are missing contents with the relevant parts
> appearing as ATT-n.dat attachments.
> 
> I was able to track the problem to the MIME header of the e-mail, namely
> to
> there being a new line character after Content-Type for
> multipart/alternative. For example, this e-mail header (I removed the
> domain info):
> 
> ....
> I was able to track this issue to the foldline function in the deliver
> class - namely, the long Content-type line causes foldline to do a fold
> before the soft limit and sends the rest of the line to the new one. From
> there on, I guess the boundary is not correctly interpreted. As a
> workaround, I added a preg_match test so that foldLine is not called for
> Content-Type lines.
> 
> My knowledge of MIME is limited so I can't figure out if the problem is in
> the message creation (the newline shouldn't be there) or reception
> (newline
> should be ignored) and I'd prefer to rely on something better than my
> quick-fix skills to solve the issue.
> 
> Further info:
> 
>    - SquirrelMail version - *1.4.23 [SVN] (config file is 1.4.20)*
>    - PHP version 5.3.18
>    - Web server IIS 6.0
>    - HMail Server 5.3.3
>    - Windows 2003
>    - Installed Manually
>    - Browsers - tried multiple
> 
> Thanks for your help.

email has two content-type headers. if it is reply, check headers in
original email. check, if you can reproduce it without html_mail plugin
messing with message structure.


newline after header tag is allowed, if header value+header tag does not fit
into recommended header line length.
-- 
Tomas



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