To be filled.
Explain release numbers. major, minor. developer releases. etc.
Remove any existing rpm with rpm -e
Remove any file that was left over. This includes (but is not limited to)
/var/log/privoxy
/etc/privoxy
/usr/sbin/privoxy
/etc/init.d/privoxy
/usr/doc/privoxy*
Install the rpm. Any error messages?
start,stop,status Privoxy with the specific script (e.g. /etc/rc.d/init/privoxy stop). Reboot your machine. Does autostart work?
Start browsing. Does Privoxy work? Logfile written?
Remove the rpm. Any error messages? All files removed?
If you compiled, packaged or merely installed Privoxy, it is recommended to run Privoxy-Regression-Test to verify that at least the tested parts of Privoxy are working as expected.
This is actually pretty easy. For details, please see perldoc privoxy-regression-test.pl.
Here is an example of what Privoxy-Regression-Test can do for you:
# Run all the tests
fk@t520 ~ $privoxy-regression-test.pl
2020-12-14 12:16:32: Asking Privoxy for the number of action files available ...
2020-12-14 12:16:32: Gathering regression tests from 9 action file(s) delivered by Privoxy 3.0.30.
2020-12-14 12:16:32: Executing regression tests ...
2020-12-14 12:16:41: Ooops. Expected removal but: 'Referer: https://p.p/' is still there.
2020-12-14 12:16:41: Failure for test 785. Header 'Referer: https://p.p/' and tag 'hide-referrer{conditional-block}'
2020-12-14 12:16:41: Ooops. Got: 'Referer: https://p.p/' while expecting: 'Referer: http://p.p/'
2020-12-14 12:16:41: Failure for test 791. Header 'Referer: https://p.p/' and tag 'hide-referrer{conditional-forge}'
2020-12-14 12:16:44: Executed 1087 regression tests. Skipped 115. 1085 successes, 2 failures.
# Repeat one of the failing tests and get a curl command to quickly reproduce the problem
# without causing too much log noise.
fk@t520 ~ $privoxy-regression-test.pl --test-number 785 --verbose --debug 4
2020-12-14 12:17:55: Asking Privoxy for the number of action files available ...
[...]
2020-12-14 12:17:56: Executing regression tests ...
2020-12-14 12:17:56: Executing: curl --include -H 'Proxy-Connection:' -H 'Connection: close' -s -S --user-agent 'Privoxy-Regression-Test 0.7.2' --max-time '5' --globoff -H 'X-Privoxy-Control: hide-referrer{conditional-block}' -H 'Referer: https://p.p/' http://p.p/show-request 2>&1
2020-12-14 12:17:56: Ooops. Expected removal but: 'Referer: https://p.p/' is still there.
2020-12-14 12:17:56: Failure for test 785 (0/13/5). Header 'Referer: https://p.p/' and tag 'hide-referrer{conditional-block}'
2020-12-14 12:17:56: Executed 1 regression tests. Skipped 1201. 0 successes, 1 failures.
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Use the if the --privoxy-address option if the http_proxy environment variable isn't configured and you don't want to use the default (http://127.0.0.1:8118/).
To make fuzzing more convenient, Privoxy can be configured with --enable-fuzz which will result in the --fuzz option becoming available.
Example (tested on ElectroBSD):
# Compile Privoxy with instrumentation for afl
$ export CC=afl-clang
$ export CFLAGS="-fsanitize=address -ggdb"
$ export CPPFLAGS=-I/usr/local/include/
$ export LDFLAGS="-fsanitize=address -L/usr/local/lib"
$ export AFL_USE_ASAN=1
$ export AFL_HARDEN=1
$ ./configure --with-debug --enable-extended-host-patterns --enable-accept-filter --enable-no-gifs --enable-compression --enable-strptime-sanity-checks --enable-external-filters --enable-fuzz
$ ./privoxy --fuzz
Privoxy version 3.0.24 (http://www.privoxy.org/)
Usage: ./privoxy [--config-test] [--chroot] [--help] [--no-daemon] [--pidfile pidfile] [--pre-chroot-nslookup hostname] [--user user[.group]] [--version] [configfile]
./privoxy --fuzz fuzz-mode ./path/to/fuzzed/input [--stfu]
Supported fuzz modes and the expected input:
action: Text to parse as action file.
client-request: Client request to parse. Currently incomplete
client-header: Client header to parse.
chunked-transfer-encoding: Chunk-encoded data to dechunk.
deflate: deflate-compressed data to decompress.
filter: Text to parse as filter file.
gif: gif to deanimate.
gzip: gzip-compressed data to decompress.
pcrs-substitute: A pcrs-substitute to compile. Not a whole pcrs job! Example: Bla $1 bla C $3 blah.
server-header: Server header to parse.
server-response: Server response to parse.
The following fuzz modes read data from stdin if the 'file' is '-'
client-request
client-header
chunked-transfer-encoding
deflate
gif
gzip
pcrs-substitute
server-header
server-response
Aborting
$ export ASAN_OPTIONS='abort_on_error=1'
$ mkdir input output
$ echo '$1 bla fasel $2' > input/pcrs
$ afl-fuzz -i input -o output -m none ~/git/privoxy/privoxy --fuzz pcrs-substitute - --stfu
$ cat >input/pcrs.txt
FILTER: bla fasel
s@(.{1})[432](\d+)@$1$2$hostname@UgisT
$ afl-fuzz -i input/ -o output/ -f bla.filter -m none privoxy --fuzz filter bla.filter --stfu
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