[imp] Subject encoding issue

[qmail at top-consulting.net]

For issue #2, I found the following by printing the Ascii codes for  
each letter of the troubled words in the subject.

Taking for example the word: Académico

When it's being displayed properly, it's made up of the following codes:

65 - A
99 - c
97 - a
100 - d
195 - ?
169 - ?
109 - m
105 - i
99 - c
111 - o

When it's showing incorrectly, it's made up of:

65 - A
99 - c
97 - a
100 - d
233 - ?
109 - m
105 - i
99 - c
111 - o

I got these values by running the following code:

for ($x=0;$x<strlen($msg['subject']);$x++) {
                 print ord(substr($msg['subject'],$x,1))." -   
".substr($msg['subject'],$x,1)."<br>";
         }
In one example the é is made from two codes ( 195/169 ) and displays  
properly while the second time around it's made from only one code (  
233 ) and shows the question mark.

What gives ?

Quoting qmail at top-consulting.net:

> I'm still unsure as to what issue #1 is and it still remains but I  
> did make headway with issue #2.
>
> I tracked down the problem to Horde/Text.php in the function  
> htmlSpaces(). More precisely, this line:
>
> $charset = NLS::getCharset();
>
> NLS::getCharset always returned UTF-8 even though my subject was  
> encoded in ISO-8859-1. Further down, this line was effectively  
> emptying out my subject line whenever $charset was set to UTF-8:
>
> $text = @htmlspecialchars($text, ENT_COMPAT, $charset);
>
> For now, I changed $charset = NLS::getCharset(); with $charset =  
> NLS::getCharset(TRUE);  which works because now the charset is  
> returned as ISO-8859-1
>
> Is this a limitation of the htmlspecialchars() function ?
>
> However, I still have issue #1 present where it shows '?' instead of  
> the actual character.
>
> Quoting qmail at top-consulting.net:
>
>> I have two problems, not sure if they are a bug on my server or  
>> maybe a bug within IMP.
>>
>> I am using the latest Horde Webmail distribution:
>>
>> Horde: 3.3.8
>> IMP: 4.3.7
>> c-client library: 2007e
>> libiconv: 1.13.1
>> Dovecot IMAP: 1.2.10
>>
>> Issue #1.
>>
>> IMP can't display characters from a different charset in the  
>> subject and instead displays a ? instead of the character. In the  
>> body of the message the subject displays just fine.
>>
>> I enabled the rawlog option in Dovecot to see the actual IMAP  
>> conversation between IMP and IMAP. When it just gets the message  
>> index, for that particular message I see:
>>
>> * 4 FETCH (INTERNALDATE "11-May-2010 20:22:31 -0400" RFC822.SIZE  
>> 2357 FLAGS (\Seen) ENVELOPE ("Tue, 11 May 2010 17:53:34 -0600" {86}
>>
>> IT-F01 Solicitud de acción de Infraestructura Tecnológica. Otro  
>> según detalle adjunto.
>>
>> Which is perfectly fine. However, in Webmail I see the subject as being:
>> IT-F01 Solicitud de acci?n de Infraestructura Tecnol?gica. Otro  
>> seg?n detalle adjunto.
>>
>>
>> Issue #2.
>>
>> IMP shows no subject line at all for messages that contain subjects  
>> defined encoded in ISO-8859-1. On the server the subject starts  
>> like this:
>>
>> =?iso-8859-1?Q?FW:_
>>
>> What could this be ?
>>
>> Thank you!
>>
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>
>
>
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