ProxyPass and ExtFilter do not work together for me..
relevant pieces of config:
ExtFilterDefine inject-into-google mode=output cmd="/bin/sed
s/head/tail/g"
LogLevel debug
<Location /proxy/google>
allow from all
SetOutputFilter inject-into-google
ProxyPass http://www.google.com
ExtFilterOptions DebugLevel=9 LogStderr
</Location>
s/head/tail/ is not performed. however, if i change it to s/o/e/g,
*something* happens -- browser says it's not able to display
page, i guess because substitution is performed in headers.
so, substitution works only for single letter combination,
but doesn't work for four-letter combinations. i've also tried
two letter combinations -- it seems it works randomly.
error.log looks like this:
[Tue Jul 01 06:45:13 2008] [debug] mod_proxy_http.c(1448): proxy: start
body send
[Tue Jul 01 06:45:13 2008] [debug] mod_ext_filter.c(618): [client
192.168.92.1] filtering `/proxy/google/search' of type `text/html;
charset=UTF-8' through `/bin/sed', cfg ExtFilterOptions DebugLevel=9
LogStderr !PreserveContentLength ExtFilterInType */* ExtFilterOuttype
(unchanged)
[Tue Jul 01 06:45:13 2008] [debug] mod_ext_filter.c(810): [client
192.168.92.1] (11)Resource temporarily unavailable: apr_file_read(child
output), len -1
[Tue Jul 01 06:45:13 2008] [debug] mod_ext_filter.c(810): [client
192.168.92.1] (11)Resource temporarily unavailable: apr_file_read(child
output), len -1
[Tue Jul 01 06:45:13 2008] [debug] mod_ext_filter.c(810): [client
192.168.92.1] (11)Resource temporarily unavailable: apr_file_read(child
output), len -1
[Tue Jul 01 06:45:13 2008] [debug] mod_ext_filter.c(810): [client
192.168.92.1] (11)Resource temporarily unavailable: apr_file_read(child
output), len -1
[Tue Jul 01 06:45:13 2008] [debug] mod_ext_filter.c(810): [client
192.168.92.1] (11)Resource temporarily unavailable: apr_file_read(child
output), len -1
[Tue Jul 01 06:45:13 2008] [debug] mod_ext_filter.c(810): [client
192.168.92.1] (11)Resource temporarily unavailable: apr_file_read(child
output), len -1
[Tue Jul 01 06:45:13 2008] [debug] mod_ext_filter.c(810): [client
192.168.92.1] (11)Resource temporarily unavailable: apr_file_read(child
output), len -1
[Tue Jul 01 06:45:13 2008] [debug] mod_ext_filter.c(810): [client
192.168.92.1] (11)Resource temporarily unavailable: apr_file_read(child
output), len -1
[Tue Jul 01 06:45:13 2008] [debug] mod_ext_filter.c(810): [client
192.168.92.1] apr_file_read(child output), len 4096
[Tue Jul 01 06:45:13 2008] [debug] mod_ext_filter.c(810): [client
192.168.92.1] (11)Resource temporarily unavailable: apr_file_read(child
output), len -1
[Tue Jul 01 06:45:13 2008] [debug] mod_ext_filter.c(810): [client
192.168.92.1] apr_file_read(child output), len 2082
[Tue Jul 01 06:45:13 2008] [debug] mod_ext_filter.c(810): [client
192.168.92.1] (70014)End of file found: apr_file_read(child output), len -1
[Tue Jul 01 06:45:13 2008] [debug] mod_proxy_http.c(1537): proxy: end body
send
[Tue Jul 01 06:45:13 2008] [debug] proxy_util.c(1780): proxy: HTTP: has
released connection for (www.google.com)
i'm using Debian GNU/Linux 4, x86, apache2 version 2.2.3-4+etch4
--
with best regards, Alex 'killer_storm' Mizrahi.
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