| Re: Encoding Problems [message #186349 is a reply to message #186334] |
Sat, 05 July 2014 01:16   |
Arno Welzel
Messages: 317
Registered: October 2011
Karma:
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Senior Member |
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stef_204, 2014-07-02 17:53:
> Hi,
>
> Newbie at php; please bear with me.
>
> I am trying to use a script which basically creates an xml feed for email
> messages found in an IMAP account; one can then either subscribe to feed
> via an rss reader/aggregator or use browser to read html page.
>
> Here is the script: <http://linuxtrove.com/wp/?p=209>
> (imap2rss.php)
>
> My problem: almost all of the messages (emails) show garbled text, I
> believe due to encoding problems.
>
> Here is a picture of how it looks both using a browser like Firefox or an
> rss news feed reader.
>
> <http://imagebin.org/314843>
This is base64 and as to be decoded.
[...]
> I could be completely wrong about the utf-8 issue; and perhaps it has
> more something to do with decoding base64 in general.
Yep - that's the point.
> This is what I now think is the problem, more specifically:
> I have just tried a base64 online decoder and pasted the garbled text in
> it and used the "decode" online feature, and the result is perfectly
> legible once decoded, whether I choose utf-8 or ascii as charset (but I
> should use utf-8).
>
> So, looks like the feed is "echoed" or "printed" in base64 format....
> It doesn't look like charset is the problem but decoding base64.
Yep.
>
> I can see the base64_decode function here
> <http://www.php.net/manual/en/function.base64-decode.php>
> but not sure if this is the right way to go about this; or how to apply
> it in this script.
Well - unfortunately there is no easy "put it in there and it works".
First of all: Just testing for the subtype "PLAIN" (is not enough. You
also have to check for the encoding.
As far i see, this should be added here:
if($msgStructure->subtype=="PLAIN")
$body = renderPlainText($body);
So extend that for the encoding:
if($msgStructure->subtype=="PLAIN")
{
switch($msgStructure->encoding)
{
case 4:
// Body text is quoted-printable encoded
$body = quoted_printable_decode($body);
break;
case 3:
// Body text is base64 encoded
$body = base64_decode($data);
break;
}
$body = renderPlainText($body);
}
Also see <http://php.net/manual/en/function.imap-fetchstructure.php> and
the comments there.
--
Arno Welzel
http://arnowelzel.de
http://de-rec-fahrrad.de
http://fahrradzukunft.de
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