[Catalyst] UTF8 problems with plugin::encoding

Mon Jul 21 10:57:58 GMT 2014

Hey all,

on most of my website running on (latest catalyst: 5.90065) i always get utf8 related errors.
the usually appear if a spider 
	Mozilla/5.0 (compatible; EasouSpider; +http://www.easou.com/search/spider.html)
comes accross.

the error is:
	Caught exception in engine "UTF8 Error: utf8 "\x98" does not map to Unicode at /usr/local/…./lib/perl5/Catalyst/Plugin/Unicode/Encoding.pm line 167.

It took me while to get the actual parameters the spiders sends because the debug-message of catalyst do not tell that much :...

—————————————
[2014/07/16 15:08:47] [5.255.253.218] [INFO] vim /usr/local/…./lib/perl5/Catalyst.pm +2016: *** Request 164 (0.032/s) [10682] [Wed Jul 16 15:08:47 2014] ***
[2014/07/16 15:08:47] [5.255.253.218] [DEBUG] vim /usr/local/…./lib/perl5/Catalyst.pm +2309: Response Code: 400; Content-Type: text/plain; charset=UTF-8; Content-Length: unknown
[2014/07/16 15:08:47] [5.255.253.218] [INFO] vim /usr/local/.../lib/perl5/Catalyst.pm +1880: Request took 0.006491s (154.059/s)
.---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-----------.
| Action                                                                                                                                                                                            | Time      |
+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-----------+
'---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-----------'
—————————————

i changed to Plugin::Unicode::Encoding plugin a bit to find out what the client sends … the results are these:
UTF8 trash arrives - and the module seems unable to deal with it…

————————————
Caught exception in engine "UTF8 Error: utf8 "\x98" does not map to Unicode at /usr/local/…../lib/perl5/Catalyst/Plugin/Unicode/Encoding.pm line 170.
 -

URL: notice/list

PARAMS:$VAR1 = {
          'X*Ö^K^@^@^@^@¸®ä
^@^@^@^@8<83>^H^K^@^@^@^@h¡ä
^@^@^@^@Hµä
^@^@^@^@X^Z^N^Q^@^@^@^@ø<91>^F^Q^@^@^@^@Ø^F^N^Q^@^@^@^@¸<92>^F^Q^@^@^@^@(^K^N^Q^@^@^@^@<88>^B^N^Q^@^@^@^@¸úÝ^P^@^@^@^@^X%q^G^@^@^@^@Ø§ñ^O^@^@^@^@ØøB.^@^@^@^@èâÝ^P^@^@^@^@XÛ_^L^@^@^@^@ÈíÝ^P^@^@^@^@¸~P^S^@^@^@^@èåÝ^P^@^@^@^@Øný^O^@^@^@^@<88>úÝ^P^@^@^@^@^Xá( ^@^@^@^@Ø¦Æ
^@^@^@^@Øï*^Q^@^@^@^@^X' => '^F^L^@^@^@^@<98>Ûø^O^@^@^@^@Ø~^A^N^@^@^@^@<98>=H>^@^@^@^@ø<99>ó^K^@^@^@^@hÔu^R^@^@^@^@¸<8e>ó^K^@^@^@^@^Xä_^L^@^@^@^@Ø<90>a^G^@^@^@^@hðÉ^O^@^@^@^@8ã*^G^@^@^@^@ØØý^M^@^@^@^@Xùë^F^@^@^@^@^HÜý^M^@^@^@^@8W6^H^@^@^@^@øÐý^M^@^@^@^@xÿÃ^K^@^@^@^@X]i^O^@^@^@^@8^Mÿ^H^@^@^@^@Xû<98>^Q^@^@^@^@x¦h^H^@^@^@^@Xý<98>^Q^@^@^@^@^X=5^H^@^@^@^@^X¦ú^K^@^@^@^@^XVQ^P^@^@^@^@^H^Yû^N^@^@^@^@x¤h^H^@^@^@^@^Xå<98>^Q^@^@^@^@ø¤h^H^@^@^@^@Xé<98>^Q^@^@^@^@X¼h^H^@^@^@^@Ø¡h^H^@^@^@^@øf<82>^Q^@^@^@^@^X>éH^@^@^@^@xv<82>^Q^@^@^@^@X6éH^@^@^@^@xl<82>^Q^@^@^@^@83Ì^G^@^@^@^@Xl<82>^Q^@^@^@^@¸Ñý^M^@^@^@^@xr<82>^Q^@^@^@^@H[^H^Q^@^@^@^@^X|<82>^Q^@^@^@^@¸Ë¢^K^@^@^@^@¸u<82>^Q^@^@^@^@<98>Á¢^K^@^@^@^@Øp<82>^Q^@^@^@^@8Í¢^K^@^@^@^@Øl<82>^Q^@^@^@^@XË¢^K^@^@^@^@Xq<82>^Q^@^@^@^@^Xi^W^H^@^@^@^@Xc<82>^Q^@^@^@^@¸Å¢^K^@^@^@^@8h<82>^Q^@^@^@^@<98>Ð¢^K^@^@^@^@¨fÐ^Q^@^@^@^@ØÉ=^R^@^@^@^@ÀC<95>^M^@^@^@^@°S<95>^M^@^@^@^@^PI<95>^M^@^@^@^@À\\<95>^M^@^@^@^@ðE<95>^M^@^@^@^@<80>B<95>^M^@^@^@^@@P<95>^M^@^@^@^@<80>Q<95>^M^@^@^@^@ J<95>^M^@^@^@^@p\\<95>^M^@^@^@^@àU<95>^M^@^@^@^@àF<95>^M^@^@^@^@àA<95>^M^@^@^@^@^@<9e>ô^P^@^@^@^@°<9d>ô^P^@^@^@^@0<91>ô^P^@^@^@^@ <9e>ô^P^@^@^@^@^P<8e>ô^P^@^@^@^@ <88>ô^P^@^@^@^@Ð<82>ô^P^@^@^@^@ <8d>ô^P^@^@^@^@<90><95>ô^P^@^@^@^@à<90>ô^P^@^@^@^@@<95>ô^P^@^@^@^@P<8f>ô^P^@^@^@^@<90><81>ô^P^@^@^@^@ <97>ô^P^@^@^@^@Ð<8c>ô^P^@^@^@^@p<88>ô^P^@^@^@^@P<99>ô^P^@^@^@^@<90><90>ô^P^@^@^@^@@<9a>ô^P^@^@^@^@0<9b>ô^P^@^@^@'
        };

 // value: $VAR1 = '^F^L^@^@^@^@<98>Ûø^O^@^@^@^@Ø~^A^N^@^@^@^@<98>=H>^@^@^@^@ø<99>ó^K^@^@^@^@hÔu^R^@^@^@^@¸<8e>ó^K^@^@^@^@^Xä_^L^@^@^@^@Ø<90>a^G^@^@^@^@hðÉ^O^@^@^@^@8ã*^G^@^@^@^@ØØý^M^@^@^@^@Xùë^F^@^@^@^@^HÜý^M^@^@^@^@8W6^H^@^@^@^@øÐý^M^@^@^@^@xÿÃ^K^@^@^@^@X]i^O^@^@^@^@8^Mÿ^H^@^@^@^@Xû<98>^Q^@^@^@^@x¦h^H^@^@^@^@Xý<98>^Q^@^@^@^@^X=5^H^@^@^@^@^X¦ú^K^@^@^@^@^XVQ^P^@^@^@^@^H^Yû^N^@^@^@^@x¤h^H^@^@^@^@^Xå<98>^Q^@^@^@^@ø¤h^H^@^@^@^@Xé<98>^Q^@^@^@^@X¼h^H^@^@^@^@Ø¡h^H^@^@^@^@øf<82>^Q^@^@^@^@^X>éH^@^@^@^@xv<82>^Q^@^@^@^@X6éH^@^@^@^@xl<82>^Q^@^@^@^@83Ì^G^@^@^@^@Xl<82>^Q^@^@^@^@¸Ñý^M^@^@^@^@xr<82>^Q^@^@^@^@H[^H^Q^@^@^@^@^X|<82>^Q^@^@^@^@¸Ë¢^K^@^@^@^@¸u<82>^Q^@^@^@^@<98>Á¢^K^@^@^@^@Øp<82>^Q^@^@^@^@8Í¢^K^@^@^@^@Øl<82>^Q^@^@^@^@XË¢^K^@^@^@^@Xq<82>^Q^@^@^@^@^Xi^W^H^@^@^@^@Xc<82>^Q^@^@^@^@¸Å¢^K^@^@^@^@8h<82>^Q^@^@^@^@<98>Ð¢^K^@^@^@^@¨fÐ^Q^@^@^@^@ØÉ=^R^@^@^@^@ÀC<95>^M^@^@^@^@°S<95>^M^@^@^@^@^PI<95>^M^@^@^@^@À\\<95>^M^@^@^@^@ðE<95>^M^@^@^@^@<80>B<95>^M^@^@^@^@@P<95>^M^@^@^@^@<80>Q<95>^M^@^@^@^@ J<95>^M^@^@^@^@p\\<95>^M^@^@^@^@àU<95>^M^@^@^@^@àF<95>^M^@^@^@^@àA<95>^M^@^@^@^@^@<9e>ô^P^@^@^@^@°<9d>ô^P^@^@^@^@0<91>ô^P^@^@^@^@ <9e>ô^P^@^@^@^@^P<8e>ô^P^@^@^@^@ <88>ô^P^@^@^@^@Ð<82>ô^P^@^@^@^@ <8d>ô^P^@^@^@^@<90><95>ô^P^@^@^@^@à<90>ô^P^@^@^@^@@<95>ô^P^@^@^@^@P<8f>ô^P^@^@^@^@<90><81>ô^P^@^@^@^@ <97>ô^P^@^@^@^@Ð<8c>ô^P^@^@^@^@p<88>ô^P^@^@^@^@P<99>ô^P^@^@^@^@<90><90>ô^P^@^@^@^@@<9a>ô^P^@^@^@^@0<9b>ô^P^@^@^@';

headers: Connection: close
Accept: text/html, application/xml;q=0.9, application/xhtml+xml, image/png, image/jpeg, image/gif, image/x-xbitmap, */*;q=0.1
Accept-Encoding: gzip, deflate
Accept-Language: zh;q=0.9,en;q=0.8
Host: wbc-inco.net
User-Agent: Mozilla/5.0 (compatible; EasouSpider; +http://www.easou.com/search/spider.html)
Content-Length: 927
Content-Type: application/x-www-form-urlencoded
REFER: http://b------.net/“

————————————

to understand the logging above: this is what i added /changed in the Catalyst::Plugin::Unicode::Encoding

————————————————————
around line 168:

        my $val;
        eval {
         $val =  Encode::is_utf8( $value ) ? $value : $enc->decode( $value, $CHECK );
        };
        if ($@){
            # UPS !
        # get request infos
use Data::Dumper;
my $params = $self->req->parameters;
my $headers= $self->req->headers->as_string;
die "UTF8 Error: $@ - \n\nURL: " . $self->req->path . "\n\nPARAMS:" . Dumper( $params ) . "\n\n // value: " . Dumper($value) . "\n\nheaders: " . $headers;
….
————————————————————

I guess my Catalyst Apps are not the only ones with these errors ?

about my App settings / config:

app-config has
	encoding                UTF-8

App.pm does not load Unicode::Encoding anymore (since this is not need when using latest Catalyst: 5.90065)

i am using postgres with
	pg_enable_utf8 1
(but the error about is far away from any DB related problem i guess)

using Catalyst::Plugin::Unicode::Encoding version 2.1 (coming with catalyxt)

i just checked out the tracker for catalyst on cpan, there is an UTF8 issue ticket
	https://rt.cpan.org/Public/Bug/Display.html?id=94957
but i does not look as it was this problem ...

Any ideas what todo ?
Add a issue/ticket ?

thanks for feedback,
bernhard bauch	

—
Bernhard Bauch, Webdevelopment
ZSI - Zentrum für soziale Innovation
bauch at zsi.at
Skype: berni-zsi

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