Privoxy 3.0.27 stable scales better in multi-user environments and brings a
- couple of tuning directives. Privoxy 3.0.28 stable fixes two regressions
- introduced in 3.0.27.
-
Changes in Privoxy 3.0.28 stable:
+
Privoxy 3.0.29 fixes a couple of memory leaks and introduces https inspection
+ which allows to filter encrypted requests and responses.
+
Changes in Privoxy 3.0.29 stable:
-
Bug fixes for regressions in 3.0.27:
+
Security/Reliability:
-
Fixed misplaced parentheses. Reported by David Binderman.
+
Fixed memory leaks when a response is buffered and the buffer limit is reached or Privoxy is running out
+ of memory. Commits bbd53f1010b and 4490d451f9b. OVE-20201118-0001. Sponsored by: Robert Klemme
-
Changed two regression tests to depend on config directive enable-remote-toggle instead of
- FEATURE_TOGGLE.
+
Fixed a memory leak in the show-status CGI handler when no action files are configured. Commit
+ c62254a686. OVE-20201118-0002. Sponsored by: Robert Klemme
+
+
+
Fixed a memory leak in the show-status CGI handler when no filter files are configured. Commit
+ 1b1370f7a8a. OVE-20201118-0003. Sponsored by: Robert Klemme
+
+
+
Fixes a memory leak when client tags are active. Commit 245e1cf32. OVE-20201118-0004. Sponsored by:
+ Robert Klemme
+
+
+
Fixed a memory leak if multiple filters are executed and the last one is skipped due to a pcre error.
+ Commit 5cfb7bc8fe. OVE-20201118-0005.
+
+
+
Prevent an unlikely dereference of a NULL-pointer that could result in a crash if
+ accept-intercepted-requests was enabled, Privoxy failed to get the request destination from the Host header
+ and a memory allocation failed. Commit 7530132349. CID 267165. OVE-20201118-0006.
+
+
+
Fixed memory leaks in the client-tags CGI handler when client tags are configured and memory allocations
+ fail. Commit cf5640eb2a. CID 267168. OVE-20201118-0007.
+
+
+
Fixed memory leaks in the show-status CGI handler when memory allocations fail. Commit 064eac5fd0 and
+ commit fdee85c0bf3. CID 305233. OVE-20201118-0008.
-
-
Changes in Privoxy 3.0.27 stable:
-
General improvements:
-
Add a receive-buffer-size directive which can be used to set the size of the previously statically
- allocated buffer in handle_established_connection(). Increasing the buffer size increases Privoxy's memory
- usage but can lower the number of context switches and thereby reduce the CPU usage and potentially
- increase the throughput. This is mostly relevant for fast network connections and large downloads that
- don't require filtering. Sponsored by: Robert Klemme
+
Added experimental https inspection support which allows to filter https traffic. To enable it, install
+ MbedTLS and configure with --with-mbedtls, or install OpenSSL or LibreSSL and configure with
+ --with-openssl. Afterwards configure the directives in section 7 of the config file and enable the
+ +https-inspection action. Initial MbedTLS-based code contributed by Vaclav Svec, initial OpenSSL support
+ contributed by Maxim Antonov. With help from Nedzad Hrnjica and Ho+ Ho+ Ho+. Integration and improvements
+ sponsored by Robert Klemme.
-
Add a listen-backlog directive which specifies the backlog value passed to listen(). Sponsored by:
- Robert Klemme
+
pcrs: Request JIT compilation if it's supported and the filter isn't dynamic. This can speed up
+ filtering.
-
Add an enable-accept-filter directive which allows to toggle accept filter support at run time when
- compiled with FEATURE_ACCEPT_FILTER support. It makes testing more convenient and now that it's optional we
- can emit an error message if enabling the accept filter fails. Sponsored by: Robert Klemme
+
Added support for Brotli decompression. Sponsored by: Robert Klemme
-
Add a delay-response{} action. This is useful to tar pit JavaScript requests that are endlessly retried
- in case of blocks. It can also be used to simulate a slow Internet connection. Sponsored by: Robert
- Klemme
+
Added FEATURE_EXTENDED_STATISTICS to gather statistics for block reasons and filter executions. To
+ enable it, configure with --enable-extended-statistics and visit http://config.privoxy.org/show-status.
+ Sponsored by: Robert Klemme
-
Add a 'trusted-cgi-referrer' directive. It allows to configure another page or site that can be used to
- reach sensitive CGI resources. Sponsored by: Robert Klemme
+
Use the IP_FREEBIND socket option, if defined. This allows Privoxy to bind to not-yet assigned IP
+ addresses which is useful in failover environments. Patch by Sam Varshavchik.
-
Add a --fuzz mode which exposes Privoxy internals to input from files or stdout. Mainly tested with
- American Fuzzy Lop. For details see: https://www.fabiankeil.de/talks/fuzzing-on-freebsd/ This work was
- partially funded with donations and done as part of the Privoxy month in 2015.
+
Allow to use extended host patterns and vanilla host patterns at the same time by prefixing extended
+ host patterns with "PCRE-HOST-PATTERN:". To enable this, configure with --enable-pcre-host-patterns.
+ Sponsored by: Robert Klemme
-
Consistently use the U(ngreedy) flag in the 'img-reorder' filter.
+
Added "Cross-origin resource sharing" (CORS) support. This allows to access Privoxy's CGI interface via
+ JavaScript from another domain (white-listed with the new cors-allowed-origin directive). Based on a patch
+ by Nedzad Hrnjica. Sponsored by: Robert Klemme.
-
listen_loop(): Reuse a single thread attribute object The object doesn't change and creating a new one
- for every thread is a waste of (CPU) time. Sponsored by: Robert Klemme
+
Add SOCKS5 username/password support. Based on a patch by Sam, improved by Ivan Romanov. Closes
+ Patch#141 and solves TODO#105.
-
Free csp resources in the thread that belongs to the csp instead of the main thread which has enough on
- its plate already. Sponsored by: Robert Klemme
+
Bump the maximum number of action and filter files to 100 each. Sponsored by: Robert Klemme
-
Improve 'socket timeout reached' message. Log the timeout that was triggered and downgrade the log level
- to LOG_LEVEL_CONNECT to reduce the log noise with common debug settings. The timeout isn't necessary the
- result of an error and usually merely indicates that Privoxy's socket timeout is lower than the relevant
- timeouts used by client and server. Sponsored by: Robert Klemme
+
Fixed handling of filters with "split-large-forms 1" when using the CGI editor. Reported by withoutname
+ in #921.
-
Explicitly taint the server socket in case of CONNECT requests. This doesn't fix any known problems, but
- makes some log messages less confusing.
+
Better detect a mismatch of connection details when figuring out whether or not a connection can be
+ reused.
-
Let write_pid_file() terminate if the pid file can't be opened. Logging the issue at info level is
- unlikely to help.
+
Don't send a "Connection failure" message instead of the "DNS failure" message. Sponsored by: Robert
+ Klemme
-
log_error(): Reduce the mutex-protected area by not using a heap-allocated buffer that is shared between
- all threads. This increases performance and reduces the latency with verbose debug settings and multiple
- concurrent connections. Sponsored by: Robert Klemme
+
Let LOG_LEVEL_REQUEST log all requests. Previously unencrypted requests were only logged with
+ LOG_LEVEL_REQUEST when they weren't crunched (in which case they were logged with LOG_LEVEL_CRUNCH). This
+ was documented behaviour, but logging all requests seems more useful.
-
Let zalloc() use calloc() if it's available. In some situations using calloc() can be faster than
- malloc() + memset() and it should never be slower. In the real world the impact of this change is not
- expected to be noticeable. Sponsored by: Robert Klemme
+
Fixed locking around localtime() and gmtime().
-
Never use select() when poll() is available. On most platforms select() is limited by FD_SETSIZE while
- poll() is not. This was a scaling issue for multi-user setups. Using poll() has no downside other than the
- usual risk that code modifications may introduce new bugs that have yet to be found and fixed. At least in
- theory this commit could also reduce the latency when there are lots of connections and select() would use
- "bit fields in arrays of integers" to store file descriptors. Another side effect is that Privoxy no longer
- has to stop monitoring the client sockets when pipelined requests are waiting but can't be read yet. This
- code keeps the select()-based code behind ifdefs for now but hopefully it can be removed soonish to make
- the code more readable. Sponsored by: Robert Klemme
+
Removed OS/2 support. We haven't provided OS/2 packages in years, it complicated the code and it
+ depended on a fallback snprintf() implementation which is GPLv2 only.
-
Add a 'reproducible-tarball-dist' target. It's currently separate from the "tarball-dist" target because
- it requires a tar implementation with mtree spec support. It's far from being perfect and does not enforce
- a reproducible mode, but it's better than nothing.
+
Remove the fallback snprintf() implementation Now that OS/2 support is gone we no longer need it.
-
Use arc4random() if it's available. While Privoxy doesn't need high quality pseudo-random numbers
- there's no reason not to use them when we can and this silences a warning emitted by code checkers that
- can't tell whether or not the quality matters.
+
Fixed a bunch of format specifiers log messages.
-
Show the FEATURE_EXTERNAL_FILTERS status on the status page. Better late than never. Previously a couple
- of tests weren't executed as Privoxy-Regression-Test couldn't detect that the FEATURE_EXTERNAL_FILTERS
- dependency was satisfied.
+
Added a missing apostrophe in the 'More Privoxy' menu.
-
Ditch FEATURE_IMAGE_DETECT_MSIE. It's an obsolete workaround we inherited from Junkbuster and was
- already disabled by default. Users that feel the urge to work around issues with image requests coming from
- an Internet Explorer version from more than 15 years ago can still do this using tags.
+
Explicitly prevent use of FEATURE_CONNECTION_SHARING without FEATURE_CONNECTION_KEEP_ALIVE. It makes no
+ sense and does not compile anyway. Sponsored by: Robert Klemme
-
Consistently use strdup_or_die() instead of strdup() in cases where allocation failures aren't expected.
- Using strdup_or_die() allows to remove a couple of explicit error checks which slightly reduces the size of
- the binary.
+
Fix build without FEATURE_CONNECTION_KEEP_ALIVE. Sponsored by: Robert Klemme
-
Insert a refresh tag into the /client-tags CGI page when serving it while a client-specific tag is
- temporarily enabled. This makes it less likely that the user ends up looking at tag state that is out of
- date.
+
Downgrade the 'Graceful termination requested' message to LOG_LEVEL_INFO as it isn't an error. Sponsored
+ by: Robert Klemme
-
Use absolute URLs in the client-tag forms. It's more consistent with the rest of the CGI page URLs and
- makes it more convenient to copy the forms to external pages.
+
decompress_iob(): Downgrade the no-content message to LOG_LEVEL_RE_FILTER While at it, fix a typo in a
+ comment. Sponsored by: Robert Klemme
-
cgi_error_disabled(): Use status code 403 and an appropriate response line
+
Fixed a couple of cppcheck warnings.
-
Use a dedicated CGI handler to deal with tag-toggle requests As a result the /client-tags page is now
- safe to reach without trusted Referer header which makes bookmarking or linking to it more convenient.
- Finally, refreshing the /client-tags page to show the current state can no longer unintentionally repeat
- the previous toggle request.
+
Rename LOG_LEVEL_GPC to LOG_LEVEL_REQUEST. Only the shadow knows what "GPC" is supposed to stand
+ for.
-
Don't add a "Connection" header for CONNECT requests. Explicitly sending "Connection: close" is not
- necessary and apparently it causes problems with some forwarding proxies that will close the connection
- prematurely. Reported by Marc Thomas.
+
Remove SourceForge references in copyright headers.
-
Fix compiler warnings.
+
Upgrade a bunch of links to the homepage to https://.
-
-
-
-
Bug fixes:
-
-
rfc2553_connect_to(): Properly detect and log when poll() reached the time out. Previously this was
- logged as: Could not connect to [...]: No error: 0. which isn't very helpful. Sponsored by: Robert
- Klemme
+
Add 'no-brotli-accepted' filter which prevents the use of Brotli compression.
-
add_tag_for_client(): Set time_to_live properly. Previously the time_to_live was always set for the
- first tag. Attempts to temporarily enable a tag would result in enabling it permanently unless no tag was
- enabled already.
+
Changed license for pcrs to GPLv2+ after getting the permission from Andreas. This allows to
+ redistribute Privoxy under the GPLv3 which is required when linking to future mbedTLS versions which are
+ expected to be licensed under the Apache 2.0 license only.
-
Revert r1.165 which didn't perform as advertised. While the idea was to use "https:// when creating
- links for the user manual on the website", the actual effect was to use "https://" when Privoxy was
- supposed to serve the user manual itself. Reported by Yossi Zahn on Privoxy-devel@.
+
Updated a bunch of tests that have to expect status code 403 now after r1.168/070e904afa5.
-
socks5_connect(): Fail in case of unsupported address types. Previously they would not be detected right
- away and Privoxy would fail later on with an error message that didn't make it obvious that the problem was
- socks-related. So far, no such problems have actually been reported.
+
Lowercase the host name in the request line.
-
socks5_connect(): Properly deal with socks replies that contain IPv6 addresses. Previously parts of the
- reply were left unread and later on treated as invalid HTTP response data. Fixes #904 reported by Danny
- Goossen who also provided the initial version of this patch.
+
Only set SOURCE_DATE_EPOCH if it's not already set so distributions can overwrite it through the
+ environment.
-
Action file improvements:
+
Documentation changes:
-
Unblock 'msdn.microsoft.com/'. It (presumably) isn't used to serve the kind of ads Privoxy should block
- by default but happens to serve lots of pages with URLs that are likely to result in false positives.
- Reported by bugreporter1694 in AF#939.
+
Explain that Privoxy has to be distributed under the GPLv3 (or later) when linked with an MbedTLS
+ version that is licensed under the Apache 2.0 license.
-
Disable gif deanimation for requests tagged with CSS-REQUEST. The action will ignore content that isn't
- considered text anyway and explicitly disabling it makes this more obvious if "action" debugging (debug
- 65536) is enabled while "gif deanimation" debugging (debug 256) isn't.
+
Import the GNU GPLv3 and include it the user manual.
-
Explicitly disable HTML filters for requests with CSS-REQUEST tag. The filters are unlikely to break CSS
- files but executing them without (intentionally) getting any hits is a waste of cpu time and makes the log
- more noisy when running with "debug 64".
+
Clarify FEATURE_FORCE_LOAD's description. It allows to bypass blocking not filtering and only does it if
+ blocks aren't enforced. Reported by: Robert Klemme
-
Unblock 'adventofcode.com/'. Reported by Clint Adams in Debian bug #848211. Fixes Roland's AF#937.
+
FAQ: Remove Zwiebelfreunde e.V. from the list of fiduciary sponsors As of 2021 they no longer handle
+ donations for foreign organisations due to lack of resources.
-
Unblock 'adlibris.com'. Reported by Wyrex in #935
+
FAQ: Remove an obsolete comment with a link to the long-gone PDF manual.
-
Unblock .golang.org/
+
FAQ: Add a link to the TODO list.
-
Add fast-redirects exception for '.youtube.com/.*origin=http'
+
FAQ: Change the sponsor amounts to USD slightly rounding the converted amounts up to get simple numbers.
+ Receiving USD is apparently easier for SPI and SPI is preferred by sponsors as they can send invoices.
+
+
+
Advertise the client-tags CGI page in the user manual.
+
+
+
Stop advertising the show-version CGI page which no longer exists.
+
+
+
Add yet another reason why +prevent-compression may cause problems.
+
+
+
Don't claim that contributors need ssh. It's only needed for committers.
+
+
+
Replace obsolete CVS instructions with Git instructions.
+
+
+
Remove an obsolete comment
-
Privoxy-Log-Parser:
+
Config file changes:
-
Don't gather host and resource statistics if they aren't requested. While the performance impact seems
- negligible this significantly reduces the memory usage if there are lots of requests.
-
-
-
Bump version as the behaviour (slightly) changed.
+
Change the suggested default-server-timeout to 5 to match the suggested keep-alive-timeout. Otherwise
+ using the defaults would result in Privoxy reducing the default-server-timeout and logging an error
+ message. Sponsored by: Robert Klemme
-
Count connection failures as well in statistics mode. Sponsored by: Robert Klemme
+
Update the 'debug 1' description.
-
Count connection timeouts as well in statistics mode. Sponsored by: Robert Klemme
+
Add a missing 'client-specific-tag' directive.
-
Fix an 'uninitialized value' warning when generating statistics for a log file without response headers.
- While privoxy-log-parser was supposed to detect this already, the check was flawed and the message the user
- didn't see was somewhat confusing anyway. Now the message is less confusing, more helpful and actually
- printed. Reported by: Robert Klemme
+
Comment out trusted-cgi-referer pointing to example.org.
-
Documentation improvements:
+
Action file improvements:
-
Refer to the git sources instead of CVS.
+
Block requests to /(.*/)?piwik\.php
-
Use GNU/Linux when referring to the OS instead of the kernel.
+
Block requests to .connectaserver.de/
-
Add FAQ entry for what to do if editing the config file is access denied.
+
Block requests to pixel.inforsea.com/
-
Add brief HTTP/2 FAQ.
+
Block requests to t.vi-serve.com/
-
Add a small fuzzing section to the developer documentation.
+
Block requests to .ioam.de/
-
Add a client-header-tagger{client-ip-address} example.
+
Block requests to t.9gag.com/img.gif
-
Stop suggesting that Privoxy is an anonymizing proxy. The term could lead to Privoxy users
- overestimating what it can do on its own (without Tor).
+
Block requests to .pixel.parsely.com/ as image
-
Make it more obvious that SPI accepts Paypal, too. Currently most donations are made through the Paypal
- account managed by Zwiebelfreunde e.V. and a more even distribution would be useful.
+
Block requests to pixel.wp.com/
-
Suggest to log applying actions as well when reproducing problems.
+
Disable fast-redirects for .librarything.com/
-
Explicitly mention that Privoxy binaries are built by individuals on their own systems. Buyer
- beware!
+
Disable fast-redirects for issue.freebsdfoundation.org/
-
Mention the release feed on the homepage.
+
Disable fast-redirects for .twitter.com/.*origin=http
-
Remove a mysterious comment with a GNU FDL link as it isn't useful and could confuse license scanners.
- In May 2002 it was briefly claimed that "this document" was covered by the GNU FDL. The commit message
- (r1.5) doesn't explain the motivation or whether all copyright holders were actually asked and agreed to
- the declared license change. It's thus hard to tell whether or not the license change was legit, but
- luckily two days later the "doc license" was "put" "back to GPL" anyway (r1.6). At the same time the
- offending comment with a link to the FDL (not the GPL) was added for no obvious reason. Now it's gone
- again.
+
Unblock belco24.de/
+
+
+
Add fast-redirects exception for .wikipedia.org/
+
+
+
Add fast-redirects exception for oss-fuzz.com/
-
-
-
-
Regression tests:
-
-
Bump for-privoxy-version to 3.0.27 as we now rely on untrusted CGI request being rejected with status
- code 403 (instead of 200).
+
Disable fast-redirects for .consensu.org/delivery/pixel\.php and block the requests as image instead
-
Update test for /send-stylesheet and add another one
+
Unblock .adbinstaller.com/ Reported by lvm in #942.
+
+
+
Unblock .adbshell.com Reported by lvm in #942.
+
+
+
Unblock .tagesschau.de/
+
+
+
Disable fast-redirects for collector.githubapp.com/ and block requests to it as image instead
+
+
+
Unblock 'ada*.'
+
+
+
Add fast-redirects{} exception for sourcepoint.vice.com/
+
+
+
Unblock adaway.org/ Reported by DRS David Soft in AF#945.
+
+
+
Change two block reasons that previously were the same. Sponsored by: Robert Klemme
+
+
+
Added a +delay-response{} test.
+
+
+
Updated the location of the development version of default.action.master.
-
Templates:
+
Privoxy-Log-Parser:
-
Consistently use https:// when linking to the Privoxy website.
+
Added a --keep-date option to keep the date in highlighted messages.
+
+
+
Highlight new log messages.
-
Remove SourceForge references in Copyright header.
+
Make gather_loglevel_clf_stats() more tolerant. While at it, count all CLF messages as requests, even if
+ the request is invalid.
-
Remove a couple of SourceForge references in a comment. While at it, fix the grammar.
+
Only show HTTP version distribution if at least one version has been detected.
-
Move the site-specific documentation block before the generic one. While most Privoxy installations
- don't have a site-specific documentation block, in cases were it exists it's likely to be more relevant
- than the generic one. Showing it first makes it less likely that users stop reading before they reach it,
- especially on pages that don't fit on the screen.
+
Only show crunch statistics if crunches were detected.
+
+
+
Warn if the request counts differ.
+
+
+
Generate statistics if the log only contains LOG_LEVEL_CLF messages so it can be used with vanilla
+ webserver logs. Previously Privoxy-specific "Request:" messages were required.
+
+
+
Align the client-HTTP-version distribution like other distributions
+
+
+
Bump version to 0.9.1
+
+
+
Include status code distribution in the stats.
+
+
+
Let the statistics include the size of the content Privoxy transferred excluding HTTP headers.
+
+
+
Get with the program and expect all requests to be logged with LOG_LEVEL_REQUEST. It's no longer
+ necessary to count both LOG_LEVEL_REQUEST and LOG_LEVEL_CRUNCH messages to get the total number of
+ requests.
+
+
+
Leverage the LOG_LEVEL_CLF message to gather statistics that where previously taken from
+ LOG_LEVEL_HEADER lines. This results in less confusing results if https inspection is enabled in which case
+ there are two LOG_LEVEL_HEADER lines with request lines. Sponsored by: Robert Klemme
+
+
+
Properly highlight the filter results message. Previously a brace got lost.
+
+
+
Prefer the number of CLF lines to get the total number of requests as it works with older Privoxy
+ versions as well.
-
Build system improvements:
+
Privoxy-Regression-Test:
-
Prefer openjade to jade. On some systems Jade produces HTML with unescaped ampersands in URLs.
+
Turn curl's globbing mode off so we can allow more characters in URLs.
-
Prefer OpenSP to SP to be consistent.
+
Allow '[' and ']' in URLs.
-
Have Docbook generated HTML files be straight ASCII. Dealing with a mixture of ISO-8859 and UTF-8 files
- is problematic.
+
Include the action file when complaining about missing Sticky Actions.
-
Echo the filename to stderr for 'make dok-tidy'. Make it a bit easier to find errors in docbook
- generated HTML.
+
Fix a sentence in the documentation.
-
Warn when still using select().
-
-
-
Warn when compiling without calloc().
+
Bump version to 0.7.1
+
+
+
+
url-pattern-translator:
+
-
Make it more obvious that the --with-fdsetsize configure switch is pointless if poll() is available.
+
Detect a couple of pattern prefixes case-insensitively. Sponsored by: Robert Klemme
-
Remove support for AmigaOS.
+
Skip CLIENT-TAG patterns. Sponsored by: Robert Klemme
-
Update windows build system to use supported software. The cygwin gcc -mno-cygwin option is no longer
- supported, so convert the windows build system to use the cygwin cross-compiler to build "native" code.
+
Skip patterns that have already been converted. It should now be safe to "convert" a file multiple
+ times. Sponsored by: Robert Klemme
-
Add --enable-static-linking option for configure does the same thing as LDFLAGS=-static; ./configure but
- nicer than mixing evars and configure options.
+
Add the new 'PCRE-HOST-PATTERN:' prefix. Sponsored by: Robert Klemme