Purpose : Entity included in other project documents.
- Copyright (C) 2013-2018 Privoxy Developers https://www.privoxy.org/
+ Copyright (C) 2013-2023 Privoxy Developers https://www.privoxy.org/
See LICENSE.
======================================================================
-->
<para>
- <application>Privoxy 3.0.27</application> stable scales better
- in multi-user environments and brings a couple of tuning directives.
+ <application>Privoxy 3.0.34</application> fixes a few
+ minor bugs and comes with a couple of general improvements
+ and new features.
</para>
-
+<para>
+ Changes in <application>Privoxy 3.0.34</application> stable:
+</para>
+<para>
<itemizedlist>
<listitem>
<para>
- General improvements:
+ Bug fixes:
<itemizedlist>
<listitem>
<para>
- 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
+ Improve the handling of chunk-encoded responses by buffering the data
+ even if filters are disabled and properly keeping track of where the
+ various chunks are supposed to start and end. Previously Privoxy would
+ merely check the last bytes received to see if they looked like the
+ last-chunk. This failed to work if the last-chunk wasn't received in one
+ read and could also result in actual data being misdetected
+ as last-chunk.
+ Should fix: SF support request #1739.
+ Reported by: withoutname.
</para>
</listitem>
<listitem>
<para>
- Add a listen-backlog directive which specifies the backlog
- value passed to listen().
- Sponsored by: Robert Klemme
+ remove_chunked_transfer_coding(): Refuse to de-chunk invalid data
+ Previously the data could get corrupted even further.
+ Now we simply pass the unmodified data to the client.
</para>
</listitem>
<listitem>
<para>
- 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
+ gif_deanimate(): Tolerate multiple image extensions in a row.
+ This allows to deanimate all the gifs on:
+ https://commons.wikimedia.org/wiki/Category:Animated_smilies
+ Fixes SF bug #795 reported by Celejar.
</para>
</listitem>
<listitem>
<para>
- 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
+ OpenSSL generate_host_certificate(): Use X509_get_subject_name()
+ instead of X509_get_issuer_name() to get the issuer for generated
+ website certificates so there are no warnings in the browser when using
+ an intermediate CA certificate instead of a self-signed root certificate.
+ Problem reported and patch submitted by Chakib Benziane.
</para>
</listitem>
<listitem>
<para>
- 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
+ can_filter_request_body(): Fix a log message that contained a spurious u.
</para>
</listitem>
<listitem>
<para>
- 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.
+ handle_established_connection(): Check for pending TLS data from the client
+ before checking if data is available on the connection.
+ The TLS library may have already consumed all the data from the client
+ response in which case poll() and select() will not detect that data is
+ available to be read.
+ Sponsored by: Robert Klemme.
</para>
</listitem>
<listitem>
<para>
- Consistently use the U(ngreedy) flag in the 'img-reorder' filter.
+ ssl_send_certificate_error(): Don't crash if there's no certificate
+ information available. This is only relevant when Privoxy is built with
+ wolfSSL 5.0.0 or later (code not yet published). Earlier wolfSSL versions
+ or the other TLS backends don't seem to trigger the crash.
</para>
</listitem>
<listitem>
<para>
- 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
+ socks5_connect(): Add support for target hosts specified as IPv4 address
+ Previously the IP address was sent as domain.
</para>
- </listitem>
+ </listitem>
+ </itemizedlist>
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ General improvements:
+ <itemizedlist>
<listitem>
<para>
- 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
+ Add a client-body-tagger action which creates tags based on
+ the content of the request body.
+ Sponsored by: Robert Klemme.
</para>
</listitem>
<listitem>
<para>
- 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
+ When client-body filters are enabled, buffer the whole request
+ before opening a connection to the server.
+ Makes it less likely that the server connection times out
+ and we don't open a connection if the buffering fails anyway.
+ Sponsored by: Robert Klemme.
</para>
</listitem>
<listitem>
<para>
- Explicitly taint the server socket in case of CONNECT requests.
- This doesn't fix any known problems, but makes
- some log messages less confusing.
+ Add periods to a couple of log messages.
</para>
</listitem>
<listitem>
<para>
- Let write_pid_file() terminate if the pid file can't be opened.
- Logging the issue at info level is unlikely to help.
+ accept_connection(): Add missing space to a log message.
</para>
</listitem>
<listitem>
<para>
- 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
+ Initialize ca-related defaults with strdup_or_die() so errors
+ aren't silently ignored.
</para>
</listitem>
<listitem>
<para>
- 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
+ make_path: Use malloc_or_die() in cases where allocation errors
+ were already fatal anyway.
</para>
</listitem>
<listitem>
<para>
- 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
+ handle_established_connection(): Improve an error message slightly.
</para>
</listitem>
<listitem>
<para>
- 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.
+ receive_client_request(): Reject https URLs without CONNECT request.
</para>
</listitem>
<listitem>
<para>
- 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.
+ Include all requests in the statistics if mutexes are available.
+ Previously in case of reused connections only the last request got
+ counted. The statistics still aren't perfect but it's an improvement.
</para>
</listitem>
<listitem>
<para>
- 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.
+ Add read_socks_reply() and start using it in socks5_connect()
+ to apply the socket timeout more consistently.
</para>
</listitem>
<listitem>
<para>
- 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.
+ socks5_connect(): Deal with domain names in the socks reply
</para>
</listitem>
<listitem>
<para>
- 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.
+ Add a filter for bundeswehr.de that hides the cookie and
+ privacy info banner.
</para>
- </listitem>
+ </listitem>
+ </itemizedlist>
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Action file improvements:
+ <itemizedlist>
<listitem>
<para>
- 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.
+ Disable filter{banners-by-size} for .freiheitsfoo.de/.
</para>
</listitem>
<listitem>
<para>
- 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.
+ Disable filter{banners-by-size} for freebsdfoundation.org/.
</para>
</listitem>
<listitem>
<para>
- cgi_error_disabled(): Use status code 403 and an appropriate response line
+ Disable fast-redirects for consent.youtube.com/.
</para>
</listitem>
<listitem>
<para>
- 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.
+ Block requests to ups.xplosion.de/.
</para>
</listitem>
<listitem>
<para>
- 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.
+ Block requests for elsa.memoinsights.com/t.
</para>
</listitem>
<listitem>
<para>
- Fix compiler warnings.
+ Fix a typo in a test.
</para>
</listitem>
- </itemizedlist>
- </para>
- </listitem>
- <listitem>
- <para>
- Bug fixes:
- <itemizedlist>
<listitem>
<para>
- 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
+ Disable fast-redirects for launchpad.net/.
</para>
</listitem>
<listitem>
<para>
- 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.
+ Unblock .eff.org/.
</para>
</listitem>
<listitem>
<para>
- 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@.
+ Stop unblocking .org/.*(image|banner) which appears to be too generous
+ The example URL http://www.gnu.org/graphics/gnu-head-banner.png is
+ already unblocked due to .gnu.org being unblocked.
</para>
</listitem>
<listitem>
<para>
- 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.
+ Unblock adfd.org/.
</para>
</listitem>
<listitem>
<para>
- 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.
- </para>
- </listitem>
- </itemizedlist>
- </para>
- </listitem>
- <listitem>
- <para>
- Action file improvements:
- <itemizedlist>
- <listitem>
- <para>
- 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.
+ Disable filter{banners-by-link} for .eff.org/.
</para>
</listitem>
<listitem>
<para>
- 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.
+ Block requests to odb.outbrain.com/.
</para>
</listitem>
<listitem>
<para>
- 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".
+ Disable fast-redirects for .gandi.net/.
</para>
</listitem>
<listitem>
<para>
- Unblock 'adventofcode.com/'.
- Reported by Clint Adams in Debian bug #848211.
- Fixes Roland's AF#937.
+ Disable fast-redirects{} for .onion/.*/status/.
</para>
</listitem>
<listitem>
<para>
- Unblock 'adlibris.com'.
- Reported by Wyrex in #935
+ Disable fast-redirects{} for twitter.com/.*/status/.
</para>
</listitem>
<listitem>
<para>
- Unblock .golang.org/
+ Unblock pinkstinks.de/.
</para>
</listitem>
<listitem>
<para>
- Add fast-redirects exception for '.youtube.com/.*origin=http'
+ Disable fast-redirects for .hagalil.com/.
</para>
</listitem>
</itemizedlist>
<itemizedlist>
<listitem>
<para>
- 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 to 0.9.5.
</para>
</listitem>
<listitem>
<para>
- Bump version as the behaviour (slightly) changed.
+ Highlight more log messages.
</para>
</listitem>
<listitem>
<para>
- Count connection failures as well in statistics mode.
- Sponsored by: Robert Klemme
- </para>
- </listitem>
- <listitem>
- <para>
- Count connection timeouts as well in statistics mode.
- Sponsored by: Robert Klemme
- </para>
- </listitem>
- <listitem>
- <para>
- 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
+ Highlight the Crunch reason only once. Previously the "crunch reason"
+ could also be highlighted when the URL contained a matching string.
+ The real crunch reason only occurs once per line, so there's no need
+ to continue looking for it after it has been found once.
+ While at it, add a comment with an example log line.
</para>
</listitem>
</itemizedlist>
</listitem>
<listitem>
<para>
- Documentation improvements:
+ uagen:
<itemizedlist>
<listitem>
<para>
- Refer to the git sources instead of CVS.
- </para>
- </listitem>
- <listitem>
- <para>
- Use GNU/Linux when referring to the OS instead of the kernel.
- </para>
- </listitem>
- <listitem>
- <para>
- Add FAQ entry for what to do if editing the config file is access denied.
- </para>
- </listitem>
- <listitem>
- <para>
- Add brief HTTP/2 FAQ.
+ Bump version to 1.2.4.
</para>
</listitem>
<listitem>
<para>
- Add a small fuzzing section to the developer documentation.
+ Update BROWSER_VERSION and BROWSER_REVISION to 102.0
+ to match the User-Agent of the current Firefox ESR.
</para>
</listitem>
<listitem>
<para>
- Add a client-header-tagger{client-ip-address} example.
+ Explicitly document that changing the 'Gecko token' is suspicious.
</para>
</listitem>
<listitem>
<para>
- 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).
+ Consistently use a lower-case 'c' as copyright symbol.
</para>
</listitem>
<listitem>
<para>
- 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.
+ Bump copyright.
</para>
</listitem>
<listitem>
<para>
- Suggest to log applying actions as well when reproducing problems.
+ Add 'aarch64' as Linux architecture.
</para>
</listitem>
<listitem>
<para>
- Explicitly mention that Privoxy binaries are built by individuals
- on their own systems. Buyer beware!
+ Add OpenBSD architecture 'arm64'.
</para>
</listitem>
<listitem>
<para>
- Mention the release feed on the homepage.
+ Stop using sparc64 as FreeBSD architecture.
+ It hasn't been supported for a while now.
</para>
- </listitem>
- <listitem>
- <para>
- 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.
- </para>
- </listitem>
+ </listitem>
</itemizedlist>
</para>
</listitem>
<listitem>
<para>
- Regression tests:
+ Build system:
<itemizedlist>
<listitem>
<para>
- 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).
+ Makefile: Add a 'dok' target that depends on the 'error' target
+ to show the "You are not using GNU make or did nor run configure"
+ message.
</para>
</listitem>
<listitem>
<para>
- Update test for /send-stylesheet and add another one
+ configure: Fix --with-msan option.
+ Also (probably) reported by Andrew Savchenko.
</para>
</listitem>
</itemizedlist>
</listitem>
<listitem>
<para>
- Templates:
+ macOS build system:
<itemizedlist>
<listitem>
<para>
- Consistently use https:// when linking to the Privoxy website.
- </para>
- </listitem>
- <listitem>
- <para>
- Remove SourceForge references in Copyright header.
- </para>
- </listitem>
- <listitem>
- <para>
- Remove a couple of SourceForge references in a comment.
- While at it, fix the grammar.
- </para>
- </listitem>
- <listitem>
- <para>
- 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.
+ Enable HTTPS inspection when building the macOS binary
+ (using OpenSSL as TLS library).
</para>
</listitem>
</itemizedlist>
</listitem>
<listitem>
<para>
- Build system improvements:
+ Documentation:
<itemizedlist>
<listitem>
<para>
- Prefer openjade to jade. On some systems Jade produces
- HTML with unescaped ampersands in URLs.
+ Add OpenSSL to the list of libraries that may be licensed under the
+ Apache 2.0 license in which case the linked Privoxy binary has to be
+ distributed under the GPLv3 or later.
</para>
</listitem>
<listitem>
<para>
- Prefer OpenSP to SP to be consistent.
+ config: Fix the documented ca-directory default value.
+ Reported by avoidr.
</para>
</listitem>
<listitem>
<para>
- Have Docbook generated HTML files be straight ASCII.
- Dealing with a mixture of ISO-8859 and UTF-8 files is problematic.
+ Rebuild developer-manual and tidy with 'HTML Tidy for FreeBSD version 5.8.0'.
</para>
</listitem>
<listitem>
<para>
- Echo the filename to stderr for 'make dok-tidy'.
- Make it a bit easier to find errors in docbook generated HTML.
- </para>
- </listitem>
- <listitem>
- <para>
- Warn when still using select().
- </para>
- </listitem>
- <listitem>
- <para>
- Warn when compiling without calloc().
- </para>
- </listitem>
- <listitem>
- <para>
- Make it more obvious that the --with-fdsetsize configure switch
- is pointless if poll() is available.
- </para>
- </listitem>
- <listitem>
- <para>
- Remove support for AmigaOS.
- </para>
- </listitem>
- <listitem>
- <para>
- 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.
- </para>
- </listitem>
- <listitem>
- <para>
- Add --enable-static-linking option for configure
- does the same thing as LDFLAGS=-static; ./configure
- but nicer than mixing evars and configure options.
+ Update developer manual with new macOS packaging instructions.
</para>
</listitem>
</itemizedlist>
</para>
</listitem>
</itemizedlist>
-
+</para>
projects / privoxy.git / blobdiff