X-Git-Url: http://www.privoxy.org/gitweb/?p=privoxy.git;a=blobdiff_plain;f=ChangeLog;h=2ca422cf365bf92b17ece7a0183b9be0116b0735;hp=f8d657a21d8187232ef9c92f7084f9dce46db7fc;hb=ddc84fafa9c94cfc201dda29ad90d1a1cee071be;hpb=926742cac6c016cb5e31caeaeaf476b4c62a134e diff --git a/ChangeLog b/ChangeLog index f8d657a2..2ca422cf 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,6 +1,575 @@ -------------------------------------------------------------------- ChangeLog for Privoxy -------------------------------------------------------------------- +*** Version 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 + - Add a listen-backlog directive which specifies the backlog + value passed to listen(). + Sponsored by: Robert Klemme + - 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 + - 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 + - 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 + - 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. + - Consistently use the U(ngreedy) flag in the 'img-reorder' filter + - 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 + - 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 + - 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 + - Explicitly taint the server socket in case of CONNECT requests. + This doesn't fix any known problems, but makes + some log messages less confusing. + - 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. + - Let write_pid_file() terminate if the pid file can't be opened + Logging the issue at info level is unlikely to help. + - 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 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 + - 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 + - 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. + - 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. + - 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. + - 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. + - 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. + - 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. + - 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. + - cgi_error_disabled(): Use status code 403 and an appropriate response line + - 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. + - 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. + - Fix compiler warnings. + +- 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_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. + - 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@. + - 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. + - 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. + +- Action file improvements: + - 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 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. + - 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". + - Unblock 'adventofcode.com/'. + Reported by Clint Adams in Debian bug #848211. + Fixes Roland's AF#937. + - Unblock 'adlibris.com'. + Reported by Wyrex in #935 + - Unblock .golang.org/ + - Add fast-redirects exception for '.youtube.com/.*origin=http' + +- Privoxy-Log-Parser: + - 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. + - Count connection failures as well in statistics mode. + Sponsored by: Robert Klemme + - Count connection timeouts as well in statistics mode. + Sponsored by: Robert Klemme + - 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 + +- Documentation improvements: + - Refer to the git sources instead of CVS. + - Use GNU/Linux when referring to the OS instead of the kernel. + - Add FAQ entry for what to do if editing the config file is access denied. + - Add brief HTTP/2 FAQ. + - Add a small fuzzing section to the developer documentation. + - Add a client-header-tagger{client-ip-address} example. + - 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). + - 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. + - Suggest to log applying actions as well when reproducing problems. + - Explicitly mention that Privoxy binaries are built by individuals + on their own systems. Buyer beware! + - Mention the release feed on the homepage. + +- 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). + - Update test for /send-stylesheet and add another one + +- Templates + - Consistently use https:// when linking to the Privoxy website. + - Remove SourceForge references in Copyright header. + - Remove a couple of SourceForge references in a comment. + While at it, fix the grammar. + - 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. + +- Build system improvements: + - Prefer openjade to jade. On some systems Jade produces + HTML with unescaped ampersands in URLs. + - Prefer OpenSP to SP to be consistent. + - Have Docbook generated HTML files be straight ASCII. + Dealing with a mixture of ISO-8859 and UTF-8 files is problematic. + - Echo the filename to stderr for 'make dok-tidy'. + Make it a bit easier to find errors in docbook generated HTML. + - Warn when still using select(). + - Warn when compiling without calloc(). + - Make it more obvious that the --with-fdsetsize configure switch + is pointless if poll() is available. + - Remove support for AmigaOS. + - 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. + - Add --enable-static-linking option for configure + does the same thing as LDFLAGS=-static; ./configure + but nicer than mixing evars and configure options. + +*** Version 3.0.26 stable *** + +- Bug fixes: + - Fixed crashes with "listen-addr :8118" (SF Bug #902). + The regression was introduced in 3.0.25 beta and reported + by Marvin Renich in Debian bug #834941. + +- General improvements: + - Log when privoxy is toggled on or off via cgi interface. + - Highlight the "Info: Now toggled " on/off log message + in the Windows log viewer. + - Highlight the loading actions/filter file log message + in the Windows log viewer. + - Mention client-specific tags on the toggle page as a + potentionally more appropriate alternative. + +- Documentation improvements: + - Update download section on the homepage. + The downloads are available from the website now. + - Add sponsor FAQ. + - Remove obsolete reference to mailing lists hosted at SourceForge. + - Update the "Before the Release" section of the developer manual. + +- Infrastructure improvements: + - Add perl script to generate an RSS feed for the packages + Submitted by "Unknown". + +- Build system improvements: + - strptime.h: fix a compiler warning about ambiguous else. + - configure.in: Check for Docbook goo on the BSDs as well. + - GNUMakefile.in: Let the dok-user target remove temporary files. + +*** Version 3.0.25 beta *** + +- Bug fixes: + - Always use the current toggle state for new requests. + Previously new requests on reused connections inherited + the toggle state from the previous request even though + the toggle state could have changed. + Reported by Robert Klemme. + - Fixed two buffer-overflows in the (deprecated) static + pcre code. These bugs are not considered security issues + as the input is trusted. + Found with afl-fuzz and ASAN. + +- General improvements: + - Added support for client-specific tags which allow Privoxy + admins to pre-define tags that are set for all requests from + clients that previously opted in through the CGI interface. + They are useful in multi-user setups where admins may + want to allow users to disable certain actions and filters + for themselves without affecting others. + In single-user setups they are useful to allow more fine-grained + toggling. For example to disable request blocking while still + crunching cookies, or to disable experimental filters only. + This is an experimental feature, the syntax and behaviour may + change in future versions. + Sponsored by Robert Klemme. + - Dynamic filters and taggers now support a $listen-address variable + which contains the address the request came in on. + For external filters the variable is called $PRIVOXY_LISTEN_ADDRESS. + Original patch contributed by pursievro. + - Add client-header-tagger 'listen-address'. + - Include the listen-address in the log message when logging new requests. + Patch contributed by pursievro. + - Turn invalid max-client-connections values into fatal errors. + - The show-status page now shows whether or not dates before 1970 + and after 2038 are expected to be handled properly. + This is mainly useful for Privoxy-Regression-Test but could + also come handy when dealing with time-related support requests. + - On Mac OS X the thread id in log messages are more likely to + be unique now. + - When complaining about missing filters, the filter type is logged + as well. + - A couple of harmless coverity warnings were silenced + (CID #161202, CID #161203, CID #161211). + +- Action file improvements: + - Filtering is disabled for Range requests to let download resumption + and Windows updates work with the default configuration. + - Unblock ".ardmediathek.de/". + Reported by ThTomate in #932. + +- Documentation improvements: + - Add FAQ entry for crashes caused by memory limits. + - Remove obsolete FAQ entry about a bug in PHP 4.2.3. + - Mention the new mailing lists were appropriate. + As the archives have not been migrated, continue to + mention the archives at SF in the contacting section + for now. + - Note that the templates should be adjusted if Privoxy is + running as intercepting proxy without getting all requests. + - A bunch of links were converted to https://. + - Rephrase onion service paragraph to make it more obvious + that Tor is involved and that the whole website (and not + just the homepage) is available as onion service. + - Streamline the "More information" section on the homepage further + by additionally ditching the link to the 'See also' section + of the user manual. The section contains mostly links that are + directly reachable from the homepage already and the rest is + not significant enough to get a link from the homepage. + - Change the add-header{} example to set the DNT header + and use a complete section to make copy and pasting + more convenient. + Add a comment to make it obvious that adding the + header is not recommended for obvious reasons. + Using the DNT header as example was suggested by + Leo Wzukw. + - Streamline the support-and-service template + Instead of linking to the various support trackers + (whose URLs hopefully change soon), link to the + contact section of the user manual to increase the + chances that users actually read it. + - Add a FAQ entry for tainted sockets. + - More sections in the documentation have stable URLs now. + - FAQ: Explain why 'ping config.privoxy.org' is not expected + to reach a local Privoxy installation. + - Note that donations done through Zwiebelfreunde e.V. currently + can't be checked automatically. + - Updated section regarding starting Privoxy under OS X. + - Use dedicated start instructions for FreeBSD and ElectroBSD. + - Removed release instructions for AIX. They haven't been working + for years and unsurprisingly nobody seems to care. + - Removed obsolete reference to the solaris-dist target. + - Updated the release instructions for FreeBSD. + - Removed unfinished release instructions for Amiga OS and HP-UX 11. + - Added a pointer to the Cygwin Time Machine for getting the last release of + Cygwin version 1.5 to use for building Privoxy on Windows. + - Various typos have been fixed. + +- Infrastructure improvements: + - The website is no longer hosted at SourceForge and + can be reached through https now. + - The mailing lists at SourceForge have been deprecated, + you can subscribe to the new ones at: https://lists.privoxy.org/ + - Migrating the remaining services from SourceForge is + work in progress (TODO list item #53). + +- Build system improvements: + - Add configure argument to optimistically redefine FD_SETSIZE + with the intent to change the maximum number of client + connections Privoxy can handle. Only works with some libcs. + Sponsored by Robert Klemme. + - Let the tarball-dist target skip files in ".git". + - Let the tarball-dist target work in cwds other than current. + - Make the 'clean' target faster when run from a git repository. + - Include tools in the generic distribution. + - Let the gen-dist target work in cwds other than current. + - Sort find output that is used for distribution tarballs + to get reproducible results. + - Don't add '-src' to the name of the tar ball generated by the + gen-dist target. The package isn't a source distribution but a + binary package. + While at it, use a variable for the name to reduce the chances + that the various references get out of sync and fix the gen-upload + target which was looking in the wrong directory. + - Add regression-tests.action to the files that are distributed. + - The gen-dist target which was broken since 2002 (r1.92) has been fixed. + - Remove genclspec.sh which has been obsolete since 2009. + - Remove obsolete reference to Redhat spec file. + - Remove the obsolete announce target which has been commented out years ago. + - Let rsync skip files if the checksums match. + +- Privoxy-Regression-Test: + - Add a "Default level offset" directive which can be used to + change the default level by a given value. + This directive affects all tests located after it until the end + of the file or a another "Default level offset" directive is reached. + The purpose of this directive is to make it more convenient to skip + similar tests in a given file without having to remove or disable + the tests completely. + - Let test level 17 depend on FEATURE_64_BIT_TIME_T + instead of FEATURE_PTHREAD which has no direct connection + to the time_t size. + - Fix indentation in perldoc examples. + - Don't overlook directives in the first line of the action file. + - Bump version to 0.7. + - Fix detection of the Privoxy version now that https:// + is used for the website. + +*** Version 3.0.24 stable *** + +- Security fixes (denial of service): + - Prevent invalid reads in case of corrupt chunk-encoded content. + CVE-2016-1982. Bug discovered with afl-fuzz and AddressSanitizer. + - Remove empty Host headers in client requests. + Previously they would result in invalid reads. CVE-2016-1983. + Bug discovered with afl-fuzz and AddressSanitizer. + +- Bug fixes: + - When using socks5t, send the request body optimistically as well. + Previously the request body wasn't guaranteed to be sent at all + and the error message incorrectly blamed the server. + Fixes #1686 reported by Peter Müller and G4JC. + - Fixed buffer scaling in execute_external_filter() that could lead + to crashes. Submitted by Yang Xia in #892. + - Fixed crashes when executing external filters on platforms like + Mac OS X. Reported by Jonathan McKenzie on ijbswa-users@. + - Properly parse ACL directives with ports when compiled with HAVE_RFC2553. + Previously the port wasn't removed from the host and in case of + 'permit-access 127.0.0.1 example.org:80' Privoxy would try (and fail) + to resolve "example.org:80" instead of example.org. + Reported by Pak Chan on ijbswa-users@. + - Check requests more carefully before serving them forcefully + when blocks aren't enforced. Privoxy always adds the force token + at the beginning of the path, but would previously accept it anywhere + in the request line. This could result in requests being served that + should be blocked. For example in case of pages that were loaded with + force and contained JavaScript to create additionally requests that + embed the origin URL (thus inheriting the force prefix). + The bug is not considered a security issue and the fix does not make + it harder for remote sites to intentionally circumvent blocks if + Privoxy isn't configured to enforce them. + Fixes #1695 reported by Korda. + - Normalize the request line in intercepted requests to make rewriting + the destination more convenient. Previously rewrites for intercepted + requests were expected to fail unless $hostport was being used, but + they failed "the wrong way" and would result in an out-of-memory + message (vanilla host patterns) or a crash (extended host patterns). + Reported by "Guybrush Threepwood" in #1694. + - Enable socket lingering for the correct socket. + Previously it was repeatedly enabled for the listen socket + instead of for the accepted socket. The bug was found by + code inspection and did not cause any (reported) issues. + - Detect and reject parameters for parameter-less actions. + Previously they were silently ignored. + - Fixed invalid reads in internal and outdated pcre code. + Found with afl-fuzz and AddressSanitizer. + - Prevent invalid read when loading invalid action files. + Found with afl-fuzz and AddressSanitizer. + - Windows build: Use the correct function to close the event handle. + It's unclear if this bug had a negative impact on Privoxy's behaviour. + Reported by Jarry Xu in #891. + - In case of invalid forward-socks5(t) directives, use the + correct directive name in the error messages. Previously they + referred to forward-socks4t failures. + Reported by Joel Verhagen in #889. + +- General improvements: + - Set NO_DELAY flag for the accepting socket. This significantly reduces + the latency if the operating system is not configured to set the flag + by default. Reported by Johan Sintorn in #894. + - Allow to build with mingw x86_64. Submitted by Rustam Abdullaev in #135. + - Introduce the new forwarding type 'forward-webserver'. + Currently it is only supported by the forward-override{} action and + there's no config directive with the same name. The forwarding type + is similar to 'forward', but the request line only contains the path + instead of the complete URL. + - The CGI editor no longer treats 'standard.action' special. + Nowadays the official "standards" are part of default.action + and there's no obvious reason to disallow editing them through + the cgi editor anyway (if the user decided that the lack of + authentication isn't an issue in her environment). + - Improved error messages when rejecting intercepted requests + with unknown destination. + - A couple of log messages now include the number of active threads. + - Removed non-standard Proxy-Agent headers in HTTP snipplets + to make testing more convenient. + - Include the error code for pcre errors Privoxy does not recognize. + - Config directives with numerical arguments are checked more carefully. + - Privoxy's malloc() wrapper has been changed to prevent zero-size + allocations which should only occur as the result of bugs. + - Various cosmetic changes. + +- Action file improvements: + - Unblock ".deutschlandradiokultur.de/". + Reported by u302320 in #924. + - Add two fast-redirect exceptions for "yandex.ru". + - Disable filter{banners-by-size} for ".plasmaservice.de/". + - Unblock "klikki.fi/adv/". + - Block requests for "resources.infolinks.com/". + Reported by "Black Rider" on ijbswa-users@. + - Block a bunch of criteo domains. + Reported by Black Rider. + - Block "abs.proxistore.com/abe/". + Reported by Black Rider. + - Disable filter{banners-by-size} for ".black-mosquito.org/". + - Disable fast-redirects for "disqus.com/". + +- Documentation improvements: + - FAQ: Explicitly point fingers at ASUS as an example of a + company that has been reported to force malware based on + Privoxy upon its customers. + - Correctly document the action type for a bunch of "multi-value" + actions that were incorrectly documented to be "parameterized". + Reported by Gregory Seidman on ijbswa-users@. + - Fixed the documented type of the forward-override{} action + which is obviously 'parameterized'. + +- Website improvements: + - Users who don't trust binaries served by SourceForge + can get them from a mirror. Migrating away from SourceForge + is planned for 2016 (TODO list item #53). + - The website is now available as onion service + (http://jvauzb4sb3bwlsnc.onion/). + *** Version 3.0.23 stable *** - Bug fixes: @@ -1943,8 +2512,8 @@ being a mix of "U.S. English", "U.K. English" and "Irish English". ---------------------------------------------------------------------- -Copyright : Written by and Copyright (C) 2001-2013 the - Privoxy team. http://www.privoxy.org/ +Copyright : Written by and Copyright (C) 2001-2018 the + Privoxy team. https://www.privoxy.org/ Based on the Internet Junkbuster originally written by and Copyright (C) 1997 Anonymous Coders and