<!entity copyright SYSTEM "copyright.sgml">
<!entity license SYSTEM "license.sgml">
<!entity GPLv2 SYSTEM "../../LICENSE">
+<!entity GPLv3 SYSTEM "../../LICENSE.GPLv3">
<!entity p-authors SYSTEM "p-authors.sgml">
<!entity config SYSTEM "p-config.sgml">
<!entity changelog SYSTEM "changelog.sgml">
-<!entity p-version "3.0.21">
+<!entity p-version "3.0.29">
<!entity p-status "stable">
<!entity % p-authors-formal "INCLUDE"> <!-- include additional text, etc -->
<!entity % p-not-stable "IGNORE">
<!entity my-app "<application>Privoxy</application>">
]>
<!--
- File : $Source: /cvsroot/ijbswa/current/doc/source/user-manual.sgml,v $
+ File : doc/source/user-manual.sgml
Purpose : user manual
- This file belongs into
- ijbswa.sourceforge.net:/home/groups/i/ij/ijbswa/htdocs/
- $Id: user-manual.sgml,v 2.174 2013/03/02 14:39:24 fabiankeil Exp $
-
- Copyright (C) 2001-2013 Privoxy Developers http://www.privoxy.org/
+ Copyright (C) 2001-2020 Privoxy Developers https://www.privoxy.org/
See LICENSE.
========================================================================
<subscript>
<!-- Completely the wrong markup, but very little is allowed -->
<!-- in this part of an article. FIXME -->
- <link linkend="copyright">Copyright</link> &my-copy; 2001-2013 by
- <ulink url="http://www.privoxy.org/">Privoxy Developers</ulink>
+ <link linkend="copyright">Copyright</link> &my-copy; 2001-2020 by
+ <ulink url="https://www.privoxy.org/">Privoxy Developers</ulink>
</subscript>
</pubdate>
-<pubdate>$Id: user-manual.sgml,v 2.174 2013/03/02 14:39:24 fabiankeil Exp $</pubdate>
-
<!--
Note: the following should generate a separate page, and a live link to it,
<para>
The <citetitle>Privoxy User Manual</citetitle> gives users information on how to
install, configure and use <ulink
- url="http://www.privoxy.org/">Privoxy</ulink>.
+ url="https://www.privoxy.org/">Privoxy</ulink>.
</para>
<!-- Include privoxy.sgml boilerplate: -->
<para>
You can find the latest version of the <citetitle>Privoxy User Manual</citetitle> at <ulink
- url="http://www.privoxy.org/user-manual/">http://www.privoxy.org/user-manual/</ulink>.
+ url="https://www.privoxy.org/user-manual/">https://www.privoxy.org/user-manual/</ulink>.
Please see the <link linkend="contact">Contact section</link> on how to
contact the developers.
</para>
-<!-- <para> -->
-<!-- Feel free to send a note to the developers at <email>ijbswa-developers@lists.sourceforge.net</email>. -->
-<!-- </para> -->
</abstract>
</artheader>
<para>
Since this is a &p-status; version, not all new features are well tested. This
documentation may be slightly out of sync as a result (especially with
- CVS sources). And there <emphasis>may be</emphasis> bugs, though hopefully
+ <ulink url="https://www.privoxy.org/gitweb/?p=privoxy.git;a=summary">git sources</ulink>).
+ And there <emphasis>may be</emphasis> bugs, though hopefully
not many!
</para>
]]>
<para>
In addition to the core
features of ad blocking and
- <ulink url="http://en.wikipedia.org/wiki/Browser_cookie">cookie</ulink> management,
+ <ulink url="https://en.wikipedia.org/wiki/Browser_cookie">cookie</ulink> management,
<application>Privoxy</application> provides many supplemental
features<![%p-not-stable;[, some of them currently under development]]>,
that give the end-user more control, more privacy and more freedom:
<application>Privoxy</application> is available both in convenient pre-compiled
packages for a wide range of operating systems, and as raw source code.
For most users, we recommend using the packages, which can be downloaded from our
- <ulink url="http://sourceforge.net/projects/ijbswa/">Privoxy Project
+ <ulink url="https://sourceforge.net/projects/ijbswa/">Privoxy Project
Page</ulink>.
</para>
</sect3>
-<!-- ~~~~~ New section ~~~~~ -->
-<sect3 id="installation-os2"><title>OS/2</title>
-
-<para>
- First, make sure that no previous installations of
- <application>Junkbuster</application> and / or
- <application>Privoxy</application> are left on your
- system. Check that no <application>Junkbuster</application>
- or <application>Privoxy</application> objects are in
- your startup folder.
-
-</para>
-
-<para>
- Then, just double-click the WarpIN self-installing archive, which will
- guide you through the installation process. A shadow of the
- <application>Privoxy</application> executable will be placed in your
- startup folder so it will start automatically whenever OS/2 starts.
-</para>
-
-<para>
- The directory you choose to install <application>Privoxy</application>
- into will contain all of the configuration files.
-</para>
-</sect3>
-
<!-- ~~~~~ New section ~~~~~ -->
<sect3 id="installation-mac"><title>Mac OS X</title>
<para>
<sect2 id="installation-source"><title>Building from Source</title>
<para>
- The most convenient way to obtain the <application>Privoxy</application> sources
- is to download the source tarball from our
- <ulink url="http://sourceforge.net/project/showfiles.php?group_id=11118&package_id=10571">project download
- page</ulink>.
-</para>
-
-<para>
- If you like to live on the bleeding edge and are not afraid of using
- possibly unstable development versions, you can check out the up-to-the-minute
- version directly from <ulink url="http://sourceforge.net/cvs/?group_id=11118">the
- CVS repository</ulink>.
-<!--
- deprecated...out of business.
- or simply download <ulink
- url="http://cvs.sourceforge.net/cvstarballs/ijbswa-cvsroot.tar.bz2">the nightly CVS
- tarball.</ulink>
--->
+ The most convenient way to obtain the <application>Privoxy</application> source
+ code is to download the source tarball from our
+ <ulink url="https://sourceforge.net/projects/ijbswa/files/Sources/">
+ project download page</ulink>,
+ or you can get the up-to-the-minute, possibly unstable, development version from
+ <ulink url="https://www.privoxy.org/">https://www.privoxy.org/</ulink>.
</para>
<!-- include buildsource.sgml boilerplate: -->
&buildsource;
<!-- end boilerplate -->
+
+ <sect3 id="WINBUILD-CYGWIN"><title>Windows</title>
+
+ <sect4 id="WINBUILD-SETUP"><title>Setup</title>
+ <para>
+ Install the Cygwin utilities needed to build <application>Privoxy</application>.
+ If you have a 64 bit CPU (which most people do by now), get the
+ Cygwin setup-x86_64.exe program <ulink url="https://cygwin.com/setup-x86_64.exe">here</ulink>
+ (the .sig file is <ulink url="https://cygwin.com/setup-x86_64.exe.sig">here</ulink>).
+ </para>
+ <para>
+ Run the setup program and from View / Category select:
+ </para>
+ <screen>
+ Devel
+ autoconf 2.5
+ automake 1.15
+ binutils
+ cmake
+ gcc-core
+ gcc-g++
+ git
+ make
+ mingw64-i686-gcc-core
+ mingw64-i686-zlib
+ Editors
+ vim
+ Libs
+ libxslt: GNOME XSLT library (runtime)
+ Net
+ curl
+ openssh
+ Text
+ docbook-dssl
+ docbook-sgml31
+ docbook-utils
+ openjade
+ Utils
+ gnupg
+ Web
+ w3m
+</screen>
+
+ <para>
+ If you haven't already downloaded the Privoxy source code, get it now:
+ </para>
+ <screen>
+ mkdir <root-dir>
+ cd <root-dir>
+ git clone https://www.privoxy.org/git/privoxy.git
+</screen>
+
+ <para>
+ Get the source code (.zip or .tar.gz) for tidy from
+ <ulink url="https://github.com/htacg/tidy-html5/releases">
+ https://github.com/htacg/tidy-html5/releases</ulink>,
+ unzip into <root-dir> and build the software:
+ </para>
+ <screen>
+ cd <root-dir>
+ cd tidy-html5-x.y.z/build/cmake
+ cmake ../.. -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIB:BOOL=OFF -DCMAKE_INSTALL_PREFIX=/usr/local
+ make && make install
+</screen>
+
+ <para>
+ If you want to be able to make a Windows release package, get the NSIS .zip file from
+ <!-- FIXME: which version(s) are known to work? -->
+ <ulink url="https://sourceforge.net/projects/nsis/files/NSIS%203/">
+ https://sourceforge.net/projects/nsis/files/NSIS%203/</ulink>
+ and extract the NSIS directory to <literal>privoxy/windows</literal>.
+ Then edit the windows/GNUmakefile to set the location of the NSIS executable - eg:
+ </para>
+ <screen>
+# Path to NSIS
+MAKENSIS = ./nsis/makensis.exe
+</screen>
+
+ </sect4>
+
+ <sect4 id="WINBUILD-BUILD"><title>Build</title>
+
+ <para>
+ To build just the Privoxy executable and not the whole installation package, do:
+ </para>
+ <programlisting>
+ cd <root-dir>/privoxy
+ ./windows/MYconfigure && make
+</programlisting>
+
+ <para>
+ Privoxy uses the <ulink url="https://en.wikipedia.org/wiki/GNU_build_system">GNU Autotools</ulink>
+ for building software, so the process is:
+ </para>
+ <programlisting>
+ $ autoheader # creates config.h.in
+ $ autoconf # uses config.h.in to create the configure shell script
+ $ ./configure [options] # creates GNUmakefile
+ $ make [options] # builds the program
+</programlisting>
+
+ <para>
+ The usual <literal>configure</literal> options for building a native Windows application under cygwin are
+ </para>
+
+ <literallayout class="Monospaced">
+ --host=i686-w64-mingw32
+ --enable-mingw32
+ --enable-zlib
+ --enable-static-linking
+ --disable-pthread
+ --disable-dynamic-pcre
+</literallayout>
+
+ <para>
+ You can set the <literal>CFLAGS</literal> and <literal>LDFLAGS</literal> envars before
+ running <literal>configure</literal> to set compiler and linker flags. For example:
+ </para>
+
+ <programlisting>
+ $ export CFLAGS="-O2" # set gcc optimization level
+ $ export LDFLAGS="-Wl,--nxcompat" # Enable DEP
+ $ ./configure --host=i686-w64-mingw32 --enable-mingw32 --enable-zlib \
+ > --enable-static-linking --disable-pthread --disable-dynamic-pcre
+ $ make # build Privoxy
+</programlisting>
+
+ <para>
+ See the <ulink url="../developer-manual/newrelease.html#NEWRELEASE-WINDOWS">Developer's Manual</ulink>
+ for building a Windows release package.
+ </para>
+
+ </sect4>
+ </sect3>
</sect2>
+
+
<!-- ~~~~~ New section ~~~~~ -->
<sect2 id="installation-keepupdated"><title>Keeping your Installation Up-to-Date</title>
<para>
If you wish to receive an email notification whenever we release updates of
<application>Privoxy</application> or the actions file, <ulink
- url="http://lists.sourceforge.net/lists/listinfo/ijbswa-announce/">subscribe
- to our announce mailing list</ulink>, ijbswa-announce@lists.sourceforge.net.
+ url="https://lists.privoxy.org/mailman/listinfo/privoxy-announce">subscribe
+ to our announce mailing list</ulink>, privoxy-announce@lists.privoxy.org.
</para>
<para>
versions of <application>Privoxy</application>:
</para>
-<para>
<itemizedlist>
<listitem>
that filtering does not work on compressed pages, so if you use, or want to
use, filtering, you will need to force compression off. Example:
</para>
- <para>
<screen>
{ +<link linkend="filter">filter</link>{google} +<link linkend="prevent-compression">prevent-compression</link> }
.google.</screen>
- </para>
<para>
Or if you use a number of filters, or filter many sites, you may just want
to turn off compression for all sites in
-->
</itemizedlist>
-</para>
</sect2>
</sect1>
<!-- ~~~~~ New section ~~~~~ -->
<sect1 id="quickstart"><title>Quickstart to Using Privoxy</title>
-<para>
+
<itemizedlist>
<listitem>
<listitem>
<para>
Set your browser to use <application>Privoxy</application> as HTTP and
- HTTPS (SSL) <ulink url="http://en.wikipedia.org/wiki/Proxy_server">proxy</ulink>
+ HTTPS (SSL) <ulink url="https://en.wikipedia.org/wiki/Proxy_server">proxy</ulink>
by setting the proxy configuration for address of
<literal>127.0.0.1</literal> and port <literal>8118</literal>.
<emphasis>DO NOT</emphasis> activate proxying for <literal>FTP</literal> or
<para>
Flush your browser's disk and memory caches, to remove any cached ad images.
If using <application>Privoxy</application> to manage
- <ulink url="http://en.wikipedia.org/wiki/Browser_cookie">cookies</ulink>,
+ <ulink url="https://en.wikipedia.org/wiki/Browser_cookie">cookies</ulink>,
you should remove any currently stored cookies too.
</para>
</listitem>
</para>
</listitem>
-<!--
- Did anyone test these lately?
- fk 2007-11-10
- <listitem>
- <para>
- For easy access to &my-app;'s most important controls, drag the provided
- <link linkend="bookmarklets">Bookmarklets</link> into your browser's
- personal toolbar.
- </para>
- </listitem>
--->
-
<listitem>
<para>
Please see the section <link linkend="contact">Contacting the
</listitem>
</itemizedlist>
-</para>
<!-- ~~~~~ New section ~~~~~ -->
<literal><link linkend="set-image-blocker">set-image-blocker</link></literal>:
</para>
-<para>
<itemizedlist>
<listitem>
</listitem>
</itemizedlist>
-</para>
<para>
Advanced users will eventually want to explore &my-app;
A quick and simple step by step example:
</para>
-<para>
<itemizedlist>
<listitem>
</para>
<!-- image of editor and actions files selections -->
- <para>
<figure pgwide="0" float="0"><title>Actions Files in Use</title>
<mediaobject>
<imageobject>
</textobject>
</mediaobject>
</figure>
- </para>
</listitem>
<listitem>
</listitem>
</itemizedlist>
-</para>
<para>
This is a very crude and simple example. There might be good reasons to use a
Before launching <application>Privoxy</application> for the first time, you
will want to configure your browser(s) to use
<application>Privoxy</application> as a HTTP and HTTPS (SSL)
- <ulink url="http://en.wikipedia.org/wiki/Proxy_server">proxy</ulink>. The default is
+ <ulink url="https://en.wikipedia.org/wiki/Proxy_server">proxy</ulink>. The default is
127.0.0.1 (or localhost) for the proxy address, and port 8118 (earlier versions
used port 8000). This is the one configuration step <emphasis>that must be done
</emphasis>!
</para>
<!-- image of Mozilla Proxy configuration -->
- <para>
<figure pgwide="0" float="0"><title>Proxy Configuration Showing
- Mozilla/Netscape HTTP and HTTPS (SSL) Settings</title>
+ Mozilla Firefox HTTP and HTTPS (SSL) Settings</title>
<mediaobject>
<imageobject>
<imagedata fileref="proxy_setup.jpg" format="jpg">
</imageobject>
<textobject>
- <phrase>[ Screenshot of Mozilla Proxy Configuration ]</phrase>
+ <phrase>[ Screenshot of Mozilla Firefox Proxy Configuration ]</phrase>
</textobject>
</mediaobject>
</figure>
- </para>
<para>
</para>
<literallayout>
- <guibutton>Tools</guibutton> -> <guibutton>Options</guibutton> -> <guibutton>Advanced</guibutton> -> <guibutton>Network</guibutton> -><guibutton>Connection</guibutton> -> <guibutton>Settings</guibutton>
-
+ <guibutton>Edit</guibutton> -> <guibutton>Preferences</guibutton> -> <guibutton>Network Settings</guibutton> -> <guibutton>Settings</guibutton>
</literallayout>
<para>
<literallayout>
<guibutton>Edit</guibutton> -> <guibutton>Preferences</guibutton> -> <guibutton>General</guibutton> -> <guibutton>Connection Settings</guibutton> -> <guibutton>Manual Proxy Configuration</guibutton>
-
</literallayout>
<!-- Mix ascii and gui art, something for everybody -->
<!-- spacing on this is tricky -->
<guibutton>Edit</guibutton> -> <guibutton>Preferences</guibutton> -> <guibutton>Advanced</guibutton> -> <guibutton>Proxies</guibutton> -> <guibutton>HTTP Proxy</guibutton>
-
</literallayout>
<para>
</para>
<!-- image of IE Proxy configuration -->
- <para>
<figure pgwide="0" float="0"><title>Proxy Configuration Showing
Internet Explorer HTTP and HTTPS (Secure) Settings</title>
<mediaobject>
</textobject>
</mediaobject>
</figure>
- </para>
<para>
After doing this, flush your browser's disk and memory caches to force a
re-reading of all pages and to get rid of any ads that may be cached. Remove
- any <ulink url="http://en.wikipedia.org/wiki/Browser_cookie">cookies</ulink>,
+ any <ulink url="https://en.wikipedia.org/wiki/Browser_cookie">cookies</ulink>,
if you want <application>Privoxy</application> to manage that. You are now
ready to start enjoying the benefits of using
<application>Privoxy</application>!
<filename>/etc/privoxy/config</filename> as its main configuration
file.
</para>
-<para>
<screen>
# /etc/init.d/privoxy start
</screen>
+</sect2>
+
+<sect2 id="start-freebsd">
+<title>FreeBSD and ElectroBSD</title>
+<para>
+ To start <application>Privoxy</application> upon booting, add
+ "privoxy_enable='YES'" to <filename>/etc/rc.conf</filename>.
+ <application>Privoxy</application> will use
+ <filename>/usr/local/etc/privoxy/config</filename> as its main
+ configuration file.
</para>
+<para>
+ If you installed <application>Privoxy</application> into a jail, the
+ paths above are relative to the jail root.
+</para>
+<para>
+ To start <application>Privoxy</application> manually, run:
+</para>
+ <screen>
+ # service privoxy onestart
+</screen>
</sect2>
<sect2 id="start-windows">
</sect2>
<sect2 id="start-unices">
-<title>Solaris, NetBSD, FreeBSD, HP-UX and others</title>
+<title>Generic instructions for Unix derivates (Solaris, NetBSD, HP-UX etc.)</title>
<para>
Example Unix startup command:
</para>
-<para>
<screen>
- # /usr/sbin/privoxy /etc/privoxy/config
+ # /usr/sbin/privoxy --user privoxy /etc/privoxy/config
</screen>
-</para>
-</sect2>
-
-<sect2 id="start-os2">
-<title>OS/2</title>
<para>
- During installation, <application>Privoxy</application> is configured to
- start automatically when the system restarts. You can start it manually by
- double-clicking on the <application>Privoxy</application> icon in the
- <application>Privoxy</application> folder.
+ Note that if you installed <application>Privoxy</application> through
+ a package manager, the package will probably contain a platform-specific
+ script or configuration file to start <application>Privoxy</application>
+ upon boot.
</para>
</sect2>
<sect2 id="start-macosx">
<title>Mac OS X</title>
<para>
- After downloading the privoxy software, unzip the downloaded file by
- double-clicking on the zip file icon. Then, double-click on the
- installer package icon and follow the installation process.
-</para>
-<para>
- The privoxy service will automatically start after a successful
- installation. In addition, the privoxy service will automatically
- start every time your computer starts up.
-</para>
-<para>
- To prevent the privoxy service from automatically starting when your
- computer starts up, remove or rename the folder named
- /Library/StartupItems/Privoxy.
-</para>
-<para>
- A simple application named Privoxy Utility has been created which
- enables administrators to easily start and stop the privoxy service.
+ The privoxy service will automatically start after a successful installation
+ (and thereafter every time your computer starts up) however you will need to
+ configure your web browser(s) to use it. To do so, configure them to use a
+ proxy for HTTP and HTTPS at the address 127.0.0.1:8118.
</para>
<para>
- In addition, the Privoxy Utility presents a simple way for
- administrators to edit the various privoxy config files. A method
- to uninstall the software is also available.
+ To prevent the privoxy service from automatically starting when your computer
+ starts up, remove or rename the file <literal>/Library/LaunchDaemons/org.ijbswa.privoxy.plist</literal>
+ (on OS X 10.5 and higher) or the folder named
+ <literal>/Library/StartupItems/Privoxy</literal> (on OS X 10.4 'Tiger').
</para>
<para>
- An administrator username and password must be supplied in order for
- the Privoxy Utility to perform any of the tasks.
+ To manually start or stop the privoxy service, use the scripts startPrivoxy.sh
+ and stopPrivoxy.sh supplied in /Applications/Privoxy. They must be run from an
+ administrator account, using sudo.
</para>
</sect2>
command-line options:
</para>
-<para>
<itemizedlist>
<listitem>
<emphasis>--pre-chroot-nslookup hostname</emphasis>
</para>
<para>
- Specifies a hostname to look up before doing a chroot. On some systems, initializing the
- resolver library involves reading config files from /etc and/or loading additional shared
- libraries from /lib. On these systems, doing a hostname lookup before the chroot reduces
+ Specifies a hostname (for example www.privoxy.org) to look up before doing a chroot.
+ On some systems, initializing the resolver library involves reading config files from
+ /etc and/or loading additional shared libraries from /lib.
+ On these systems, doing a hostname lookup before the chroot reduces
the number of files that must be copied into the chroot tree.
</para>
<para>
</listitem>
</itemizedlist>
-</para>
<para>
On <application>MS Windows</application> only there are two additional
<!-- ~~~~~ New section ~~~~~ -->
-<sect2>
+<sect2 id="control-with-webbrowser">
<title>Controlling Privoxy with Your Web Browser</title>
<para>
<application>Privoxy</application>'s user interface can be reached through the special
(shortcut: <ulink url="http://p.p/">http://p.p/</ulink>),
which is a built-in page and works without Internet access.
You will see the following section:
-
</para>
<!-- Needs to be put in a table and colorized -->
-<screen>
+<screen><!-- want the background color that goes with screen -->
<msgtext>
<bridgehead renderas="sect2"> Privoxy Menu</bridgehead>
-
<simplelist>
<member>
▪ <ulink url="http://config.privoxy.org/show-status">View & change the current configuration</ulink>
</member>
<member>
- ▪ <ulink url="http://config.privoxy.org/show-version">View the source code version numbers</ulink>
+ ▪ <ulink url="http://config.privoxy.org/client-tags">View or toggle the tags that can be set based on the client's address</ulink>
</member>
<member>
▪ <ulink url="http://config.privoxy.org/show-request">View the request headers.</ulink>
</member>
<member>
▪ <ulink
- url="http://www.privoxy.org/&p-version;/user-manual/">Documentation</ulink>
+ url="https://www.privoxy.org/&p-version;/user-manual/">Documentation</ulink>
</member>
</simplelist>
</msgtext>
it as a test to see whether it is <application>Privoxy</application>
causing the problem or not. <application>Privoxy</application> continues
to run as a proxy in this case, but all manipulation is disabled, i.e.
- <application>Privoxy</application> acts like a normal forwarding proxy. There
- is even a toggle <link linkend="bookmarklets">Bookmarklet</link> offered, so
- that you can toggle <application>Privoxy</application> with one click from
- your browser.
+ <application>Privoxy</application> acts like a normal forwarding proxy.
</para>
<para>
<sect2 id="confoverview">
<title>Configuration Files Overview</title>
<para>
- For Unix, *BSD and Linux, all configuration files are located in
- <filename>/etc/privoxy/</filename> by default. For MS Windows, OS/2, and
- AmigaOS these are all in the same directory as the
+ For Unix, *BSD and GNU/Linux, all configuration files are located in
+ <filename>/etc/privoxy/</filename> by default. For MS Windows
+ these are all in the same directory as the
<application>Privoxy</application> executable. <![%p-not-stable;[ The name
and number of configuration files has changed from previous versions, and is
subject to change as development progresses.]]>
principle configuration files are:
</para>
-<para>
<itemizedlist>
<listitem>
<para>
The <link linkend="config">main configuration file</link> is named <filename>config</filename>
- on Linux, Unix, BSD, OS/2, and AmigaOS and <filename>config.txt</filename>
+ on GNU/Linux, Unix, BSD, and <filename>config.txt</filename>
on Windows. This is a required file.
</para>
</listitem>
</listitem>
</itemizedlist>
-</para>
<para>
The syntax of the configuration and filter files may change between different
are three action files included with <application>Privoxy</application> with
differing purposes:
</para>
-<para>
<itemizedlist>
<listitem>
<para>
The default profiles, and their associated actions, as pre-defined in
<filename>default.action</filename> are:
</para>
- <para>
- <table frame=all><title>Default Configurations</title>
+ <table frame=all id="default-configurations"><title>Default Configurations</title>
<tgroup cols=4 align=left colsep=1 rowsep=1>
<colspec colname=c1>
<colspec colname=c2>
</tbody>
</tgroup>
</table>
- </para>
</listitem>
</itemizedlist>
-</para>
<para>
The list of actions files to be used are defined in the main configuration
</para>
<!-- ~~~~~ New section ~~~~~ -->
-<sect2>
+<sect2 id="right-mix">
<title>Finding the Right Mix</title>
<para>
Note that some <link linkend="actions">actions</link>, like cookie suppression
</sect2>
<!-- ~~~~~ New section ~~~~~ -->
-<sect2>
+<sect2 id="how-to-edit">
<title>How to Edit</title>
<para>
The easiest way to edit the actions files is with a browser by
might look like:
</para>
- <para>
<screen>
{ +<literal>handle-as-image</literal> +<literal>block{Banner ads.}</literal> }
# Block these as if they were images. Send no block page.
banners.example.com
media.example.com/.*banners
.example.com/images/ads/</screen>
- </para>
<para>
You can trace this process for URL patterns and any given URL by visiting <ulink
<para>
Generally, an URL pattern has the form
- <literal><domain><port>/<path></literal>, where the
- <literal><domain></literal>, the <literal><port></literal>
+ <literal><host><port>/<path></literal>, where the
+ <literal><host></literal>, the <literal><port></literal>
and the <literal><path></literal> are optional. (This is why the special
<literal>/</literal> pattern matches all URLs). Note that the protocol
portion of the URL pattern (e.g. <literal>http://</literal>) should
<emphasis>not</emphasis> be included in the pattern. This is assumed already!
</para>
<para>
- The pattern matching syntax is different for the domain and path parts of
- the URL. The domain part uses a simple globbing type matching technique,
+ The pattern matching syntax is different for the host and path parts of
+ the URL. The host part uses a simple globbing type matching technique,
while the path part uses more flexible
- <ulink url="http://en.wikipedia.org/wiki/Regular_expressions"><quote>Regular
+ <ulink url="https://en.wikipedia.org/wiki/Regular_expressions"><quote>Regular
Expressions</quote></ulink> (POSIX 1003.2).
</para>
<para>
The port part of a pattern is a decimal port number preceded by a colon
- (<literal>:</literal>). If the domain part contains a numerical IPv6 address,
+ (<literal>:</literal>). If the host part contains a numerical IPv6 address,
it has to be put into angle brackets
(<literal><</literal>, <literal>></literal>).
</para>
<term><literal>www.example.com/</literal></term>
<listitem>
<para>
- is a domain-only pattern and will match any request to <literal>www.example.com</literal>,
+ is a host-only pattern and will match any request to <literal>www.example.com</literal>,
regardless of which document on that server is requested. So ALL pages in
this domain would be covered by the scope of this action. Note that a
simple <literal>example.com</literal> is different and would NOT match.
<term><literal>www.example.com</literal></term>
<listitem>
<para>
- means exactly the same. For domain-only patterns, the trailing <literal>/</literal> may
+ means exactly the same. For host-only patterns, the trailing <literal>/</literal> may
be omitted.
</para>
</listitem>
</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><literal>10.0.0.1/</literal></term>
+ <listitem>
+ <para>
+ Matches any URL with the host address <literal>10.0.0.1</literal>.
+ (Note that the real URL uses plain brackets, not angle brackets.)
+ </para>
+ </listitem>
+ </varlistentry>
<varlistentry>
<term><literal><2001:db8::1>/</literal></term>
<listitem>
<!-- ~~~~~ New section ~~~~~ -->
-<sect3><title>The Domain Pattern</title>
+<sect3 id="host-pattern"><title>The Host Pattern</title>
<para>
- The matching of the domain part offers some flexible options: if the
- domain starts or ends with a dot, it becomes unanchored at that end.
+ The matching of the host part offers some flexible options: if the
+ host pattern starts or ends with a dot, it becomes unanchored at that end.
+ The host pattern is often referred to as domain pattern as it is usually
+ used to match domain names and not IP addresses.
For example:
</para>
themselves. These work similarly to shell globbing type wild-cards:
<quote>*</quote> represents zero or more arbitrary characters (this is
equivalent to the
- <ulink url="http://en.wikipedia.org/wiki/Regular_expressions"><quote>Regular
+ <ulink url="https://en.wikipedia.org/wiki/Regular_expressions"><quote>Regular
Expression</quote></ulink> based syntax of <quote>.*</quote>),
<quote>?</quote> represents any single character (this is equivalent to the
regular expression syntax of a simple <quote>.</quote>), and you can define
While flexible, this is not the sophistication of full regular expression based syntax.
</para>
+<para>
+ When compiled with FEATURE_PCRE_HOST_PATTERNS patterns can be prefixed with
+ <quote>PCRE-HOST-PATTERN:</quote> in which case full regular expression
+ (PCRE) can be used for the host pattern as well.
+</para>
+
</sect3>
<!-- ~ End section ~ -->
<!-- ~~~~~ New section ~~~~~ -->
-<sect3><title>The Path Pattern</title>
+<sect3 id="path-pattern"><title>The Path Pattern</title>
<para>
<application>Privoxy</application> uses <quote>modern</quote> POSIX 1003.2
- <ulink url="http://en.wikipedia.org/wiki/Regular_expressions"><quote>Regular
+ <ulink url="https://en.wikipedia.org/wiki/Regular_expressions"><quote>Regular
Expressions</quote></ulink> for matching the path portion (after the slash),
and is thus more flexible.
</para>
This regular expression is conditional so it will match any page
named <quote>index.html</quote> regardless of path which in this case can
have one or more <quote>/'s</quote>. And this one must contain exactly
- <quote>.html</quote> (but does not have to end with that!).
+ <quote>.html</quote> (and end with that!).
</para>
</listitem>
</varlistentry>
that contains any of the words <quote>ads</quote>, <quote>banner</quote>,
<quote>banners</quote> (because of the <quote>?</quote>) or <quote>junk</quote>.
The path does not have to end in these words, just contain them.
+ The path has to contain at least two slashes (including the one at the beginning).
</para>
</listitem>
</varlistentry>
<!-- ~~~~~ New section ~~~~~ -->
-<sect3 id="tag-pattern"><title>The Tag Pattern</title>
+<sect3 id="tag-pattern"><title>The Request Tag Pattern</title>
<para>
- Tag patterns are used to change the applying actions based on the
- request's tags. Tags can be created with either the
- <link linkend="CLIENT-HEADER-TAGGER">client-header-tagger</link>
+ Request tag patterns are used to change the applying actions based on the
+ request's tags. Tags can be created based on HTTP headers with either
+ the <link linkend="CLIENT-HEADER-TAGGER">client-header-tagger</link>
or the <link linkend="SERVER-HEADER-TAGGER">server-header-tagger</link> action.
</para>
<para>
- Tag patterns have to start with <quote>TAG:</quote>, so &my-app;
- can tell them apart from URL patterns. Everything after the colon
+ Request tag patterns have to start with <quote>TAG:</quote>, so &my-app;
+ can tell them apart from other patterns. Everything after the colon
including white space, is interpreted as a regular expression with
path pattern syntax, except that tag patterns aren't left-anchored
automatically (&my-app; doesn't silently add a <quote>^</quote>,
</para>
<para>
- Sections can contain URL and tag patterns at the same time,
- but tag patterns are checked after the URL patterns and thus
+ Sections can contain URL and request tag patterns at the same time,
+ but request tag patterns are checked after the URL patterns and thus
always overrule them, even if they are located before the URL patterns.
</para>
<para>
- Once a new tag is added, Privoxy checks right away if it's matched by one
- of the tag patterns and updates the action settings accordingly. As a result
- tags can be used to activate other tagger actions, as long as these other
+ Once a new request tag is added, Privoxy checks right away if it's matched by one
+ of the request tag patterns and updates the action settings accordingly. As a result
+ request tags can be used to activate other tagger actions, as long as these other
taggers look for headers that haven't already be parsed.
</para>
</sect3>
+<!-- ~~~~~ New section ~~~~~ -->
+<sect3 id="negative-tag-patterns"><title>The Negative Request Tag Patterns</title>
+
+<para>
+ To match requests that do not have a certain request tag, specify a negative tag pattern
+ by prefixing the tag pattern line with either <quote>NO-REQUEST-TAG:</quote>
+ or <quote>NO-RESPONSE-TAG:</quote> instead of <quote>TAG:</quote>.
+</para>
+
+<para>
+ Negative request tag patterns created with <quote>NO-REQUEST-TAG:</quote> are checked
+ after all client headers are scanned, the ones created with <quote>NO-RESPONSE-TAG:</quote>
+ are checked after all server headers are scanned. In both cases all the created
+ tags are considered.
+</para>
+</sect3>
+
+<!-- ~~~~~ New section ~~~~~ -->
+<sect3 id="client-tag-pattern"><title>The Client Tag Pattern</title>
+
+<!-- XXX: This section contains duplicates content from the
+ client-specific-tag documentation. -->
+
+<warning>
+<para>
+ This is an experimental feature. The syntax is likely to change in future versions.
+</para>
+</warning>
+
+<para>
+ Client tag patterns are not set based on HTTP headers but based on
+ the client's IP address. Users can enable them themselves, but the
+ Privoxy admin controls which tags are available and what their effect
+ is.
+</para>
+
+<para>
+ After a client-specific tag has been defined with the
+ <link linkend="client-specific-tag">client-specific-tag</link>,
+ directive, action sections can be activated based on the tag by using a
+ CLIENT-TAG pattern. The CLIENT-TAG pattern is evaluated at the same priority
+ as URL patterns, as a result the last matching pattern wins. Tags that
+ are created based on client or server headers are evaluated later on
+ and can overrule CLIENT-TAG and URL patterns!
+</para>
+<para>
+ The tag is set for all requests that come from clients that requested
+ it to be set. Note that "clients" are differentiated by IP address,
+ if the IP address changes the tag has to be requested again.
+</para>
+<para>
+ Clients can request tags to be set by using the CGI interface <ulink
+ url="http://config.privoxy.org/client-tags">http://config.privoxy.org/client-tags</ulink>.
+</para>
+
+<para>
+ Example:
+</para>
+
+ <screen>
+# If the admin defined the client-specific-tag circumvent-blocks,
+# and the request comes from a client that previously requested
+# the tag to be set, overrule all previous +block actions that
+# are enabled based on URL to CLIENT-TAG patterns.
+{-block}
+CLIENT-TAG:^circumvent-blocks$
+
+# This section is not overruled because it's located after
+# the previous one.
+{+block{Nobody is supposed to request this.}}
+example.org/blocked-example-page</screen>
+
+</sect3>
+
</sect2>
<!-- ~ End section ~ -->
following patterns</quote>, and <literal>-block</literal> means <quote>don't
block URLs that match the following patterns, even if <literal>+block</literal>
previously applied.</quote>
-
</para>
<para>
Actions fall into three categories:
</para>
-<para>
<itemizedlist>
<listitem>
<para>
Boolean, i.e the action can only be <quote>enabled</quote> or
<quote>disabled</quote>. Syntax:
</para>
- <para>
<screen>
+<replaceable class="function">name</replaceable> # enable action <replaceable class="parameter">name</replaceable>
-<replaceable class="function">name</replaceable> # disable action <replaceable class="parameter">name</replaceable></screen>
- </para>
<para>
Example: <literal>+handle-as-image</literal>
</para>
Parameterized, where some value is required in order to enable this type of action.
Syntax:
</para>
- <para>
<screen>
+<replaceable class="function">name</replaceable>{<replaceable class="parameter">param</replaceable>} # enable action and set parameter to <replaceable class="parameter">param</replaceable>,
# overwriting parameter from previous match if necessary
-<replaceable class="function">name</replaceable> # disable action. The parameter can be omitted</screen>
- </para>
<para>
Note that if the URL matches multiple positive forms of a parameterized action,
the last match wins, i.e. the params from earlier matches are simply ignored.
that can be executed for the same request repeatedly, like adding multiple
headers, or filtering through multiple filters. Syntax:
</para>
- <para>
<screen>
+<replaceable class="function">name</replaceable>{<replaceable class="parameter">param</replaceable>} # enable action and add <replaceable class="parameter">param</replaceable> to the list of parameters
-<replaceable class="function">name</replaceable>{<replaceable class="parameter">param</replaceable>} # remove the parameter <replaceable class="parameter">param</replaceable> from the list of parameters
# If it was the last one left, disable the action.
<replaceable class="parameter">-name</replaceable> # disable this action completely and remove all parameters from the list</screen>
- </para>
<para>
Examples: <literal>+add-header{X-Fun-Header: Some text}</literal> and
<literal>+filter{html-annoyances}</literal>
</listitem>
</itemizedlist>
-</para>
<para>
If nothing is specified in any actions file, no <quote>actions</quote> are
<varlistentry>
<term>Example usage:</term>
<listitem>
- <para>
- <screen>+add-header{X-User-Tracking: sucks}</screen>
- </para>
+ <screen># Add a DNT ("Do not track") header to all requests,
+# event to those that already have one.
+#
+# This is just an example, not a recommendation.
+#
+# There is no reason to believe that user-tracking websites care
+# about the DNT header and depending on the User-Agent, adding the
+# header may make user-tracking easier.
+{+add-header{DNT: 1}}
+/</screen>
</listitem>
</varlistentry>
</variablelist>
<varlistentry>
<term>Example usage (section):</term>
<listitem>
- <para>
<screen>{+block{No nasty stuff for you.}}
# Block and replace with "blocked" page
.nasty-stuff.example.com
{+block{Layered ads.} +handle-as-empty-document}
# Block and then ignore
adserver.example.net/.*\.js$</screen>
- </para>
</listitem>
</varlistentry>
<varlistentry>
<term>Example usage:</term>
<listitem>
- <para>
<screen>+change-x-forwarded-for{block}</screen>
- </para>
</listitem>
</varlistentry>
</variablelist>
<term>Type:</term>
<!-- boolean, parameterized, Multi-value -->
<listitem>
- <para>Parameterized.</para>
+ <para>Multi-value.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>Example usage (section):</term>
<listitem>
- <para>
<screen>
# Hide Tor exit notation in Host and Referer Headers
{+client-header-filter{hide-tor-exit-notation}}
/
- </screen>
- </para>
+</screen>
</listitem>
</varlistentry>
<term>Type:</term>
<!-- boolean, parameterized, Multi-value -->
<listitem>
- <para>Parameterized.</para>
+ <para>Multi-value.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>Example usage (section):</term>
<listitem>
- <para>
<screen>
# Tag every request with the User-Agent header
{+client-header-tagger{user-agent}}
TAG:^User-Agent: fetch libfetch/
TAG:^User-Agent: Ubuntu APT-HTTP/
TAG:^User-Agent: MPlayer/
- </screen>
- </para>
- <para>
+</screen>
+
<screen>
# Tag all requests with the Range header set
{+client-header-tagger{range-requests}}
# parts of multimedia files.
{-filter -deanimate-gifs}
TAG:^RANGE-REQUEST$
- </screen>
- </para>
+</screen>
+
+ <screen>
+# Tag all requests with the client IP address
+#
+# (Technically the client IP address isn't included in the
+# client headers but client-header taggers can set it anyway.
+# For details see the tagger in default.filter)
+{+client-header-tagger{client-ip-address}}
+/
+
+# Change forwarding settings for requests coming from address 10.0.0.1
+{+forward-override{forward-socks5 127.0.1.2:2222 .}}
+TAG:^IP-ADDRESS: 10\.0\.0\.1$
+</screen>
</listitem>
</varlistentry>
<varlistentry>
<term>Example usage (sections):</term>
<listitem>
- <para>
<screen># Check if www.example.net/ really uses valid XHTML
{ +content-type-overwrite{application/xml} }
www.example.net/
www.example.net/.*\.css$
www.example.net/.*style
</screen>
- </para>
</listitem>
</varlistentry>
</variablelist>
<varlistentry>
<term>Example usage (section):</term>
<listitem>
- <para>
<screen># Block the non-existent "Privacy-Violation:" client header
{ +crunch-client-header{Privacy-Violation:} }
/
- </screen>
- </para>
+</screen>
</listitem>
</varlistentry>
</variablelist>
<varlistentry>
<term>Example usage (section):</term>
<listitem>
- <para>
<screen># Let the browser revalidate cached documents but don't
# allow the server to use the revalidation headers for user tracking.
{+hide-if-modified-since{-60} \
+overwrite-last-modified{randomize} \
+crunch-if-none-match}
-/ </screen>
- </para>
+/
+</screen>
</listitem>
</varlistentry>
</variablelist>
<varlistentry>
<term>Example usage:</term>
<listitem>
- <para>
<screen>+crunch-incoming-cookies</screen>
- </para>
</listitem>
</varlistentry>
</variablelist>
<varlistentry>
<term>Example usage (section):</term>
<listitem>
- <para>
<screen># Crunch server headers that try to prevent caching
{ +crunch-server-header{no-cache} }
-/ </screen>
- </para>
+/
+</screen>
</listitem>
</varlistentry>
</variablelist>
<varlistentry>
<term>Example usage:</term>
<listitem>
- <para>
<screen>+crunch-outgoing-cookies</screen>
- </para>
</listitem>
</varlistentry>
<varlistentry>
<term>Example usage:</term>
<listitem>
- <para>
<screen>+deanimate-gifs{last}</screen>
- </para>
</listitem>
</varlistentry>
</variablelist>
</sect3>
+
<!-- ~~~~~ New section ~~~~~ -->
-<sect3 renderas="sect4" id="downgrade-http-version">
-<title>downgrade-http-version</title>
+<sect3 renderas="sect4" id="delay-response">
+<title>delay-response</title>
<variablelist>
<varlistentry>
<term>Typical use:</term>
<listitem>
- <para>Work around (very rare) problems with HTTP/1.1</para>
+ <para>Delay responses to the client to reduce the load</para>
</listitem>
</varlistentry>
<term>Effect:</term>
<listitem>
<para>
- Downgrades HTTP/1.1 client requests and server replies to HTTP/1.0.
+ Delays responses to the client by sending the response in ca. 10 byte chunks.
</para>
</listitem>
</varlistentry>
<term>Type:</term>
<!-- boolean, parameterized, Multi-value -->
<listitem>
- <para>Boolean.</para>
+ <para>Parameterized.</para>
</listitem>
</varlistentry>
<term>Parameter:</term>
<listitem>
<para>
- N/A
+ <quote>Number of milliseconds</quote>
</para>
</listitem>
</varlistentry>
-<varlistentry>
+ <varlistentry>
<term>Notes:</term>
<listitem>
<para>
- This is a left-over from the time when <application>Privoxy</application>
- didn't support important HTTP/1.1 features well. It is left here for the
- unlikely case that you experience HTTP/1.1-related problems with some server
- out there.
+ Sometimes when JavaScript code is used to fetch advertisements
+ it doesn't respect Privoxy's blocks and retries to fetch the
+ same resource again causing unnecessary load on the client.
</para>
<para>
- Note that enabling this action is only a workaround. It should not
- be enabled for sites that work without it. While it shouldn't break
- any pages, it has an (usually negative) performance impact.
- </para>
- <para>
- If you come across a site where enabling this action helps, please report it,
- so the cause of the problem can be analyzed. If the problem turns out to be
- caused by a bug in <application>Privoxy</application> it should be
- fixed so the following release works without the work around.
+ This action delays responses to the client and can be combined
+ with <literal><link linkend="block">blocks</link></literal>
+ to slow down the JavaScript code, thus reducing
+ the load on the client.
+ </para>
+ <para>
+ When used without <literal><link linkend="block">blocks</link></literal>
+ the action can also be used to simulate a slow internet connection.
</para>
</listitem>
</varlistentry>
<varlistentry>
- <term>Example usage (section):</term>
+ <term>Example usage:</term>
<listitem>
- <para>
- <screen>{+downgrade-http-version}
-problem-host.example.com</screen>
- </para>
+ <screen>+delay-response{100}</screen>
</listitem>
</varlistentry>
-
</variablelist>
</sect3>
+
<!-- ~~~~~ New section ~~~~~ -->
-<sect3 renderas="sect4" id="fast-redirects">
-<title>fast-redirects</title>
+<sect3 renderas="sect4" id="downgrade-http-version">
+<title>downgrade-http-version</title>
<variablelist>
<varlistentry>
<term>Typical use:</term>
<listitem>
- <para>Fool some click-tracking scripts and speed up indirect links.</para>
+ <para>Work around (very rare) problems with HTTP/1.1</para>
</listitem>
</varlistentry>
<term>Effect:</term>
<listitem>
<para>
- Detects redirection URLs and redirects the browser without contacting
- the redirection server first.
+ Downgrades HTTP/1.1 client requests and server replies to HTTP/1.0.
</para>
</listitem>
</varlistentry>
<term>Type:</term>
<!-- boolean, parameterized, Multi-value -->
<listitem>
- <para>Parameterized.</para>
+ <para>Boolean.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>Parameter:</term>
<listitem>
- <itemizedlist>
- <listitem>
- <para>
- <quote>simple-check</quote> to just search for the string <quote>http://</quote>
- to detect redirection URLs.
- </para>
- </listitem>
- <listitem>
- <para>
+ <para>
+ N/A
+ </para>
+ </listitem>
+ </varlistentry>
+
+<varlistentry>
+ <term>Notes:</term>
+ <listitem>
+ <para>
+ This is a left-over from the time when <application>Privoxy</application>
+ didn't support important HTTP/1.1 features well. It is left here for the
+ unlikely case that you experience HTTP/1.1-related problems with some server
+ out there.
+ </para>
+ <para>
+ Note that enabling this action is only a workaround. It should not
+ be enabled for sites that work without it. While it shouldn't break
+ any pages, it has an (usually negative) performance impact.
+ </para>
+ <para>
+ If you come across a site where enabling this action helps, please report it,
+ so the cause of the problem can be analyzed. If the problem turns out to be
+ caused by a bug in <application>Privoxy</application> it should be
+ fixed so the following release works without the work around.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>Example usage (section):</term>
+ <listitem>
+ <screen>{+downgrade-http-version}
+problem-host.example.com</screen>
+ </listitem>
+ </varlistentry>
+
+</variablelist>
+</sect3>
+
+
+<!-- ~~~~~ New section ~~~~~ -->
+<sect3 renderas="sect4" id="external-filter">
+<title>external-filter</title>
+
+<variablelist>
+ <varlistentry>
+ <term>Typical use:</term>
+ <listitem>
+ <para>Modify content using a programming language of your choice.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>Effect:</term>
+ <listitem>
+ <para>
+ All instances of text-based type, most notably HTML and JavaScript, to which
+ this action applies, can be filtered on-the-fly through the specified external
+ filter.
+ By default plain text documents are exempted from filtering, because web
+ servers often use the <literal>text/plain</literal> MIME type for all files
+ whose type they don't know.)
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>Type:</term>
+ <!-- boolean, parameterized, Multi-value -->
+ <listitem>
+ <para>Multi-value.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>Parameter:</term>
+ <listitem>
+ <para>
+ The name of an external content filter, as defined in the
+ <link linkend="filter-file">filter file</link>.
+ External filters can be defined in one or more files as defined by the
+ <literal><link linkend="filterfile">filterfile</link></literal>
+ option in the <link linkend="config">config file</link>.
+ </para>
+ <para>
+ When used in its negative form,
+ and without parameters, <emphasis>all</emphasis> filtering with external
+ filters is completely disabled.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>Notes:</term>
+ <listitem>
+ <para>
+ External filters are scripts or programs that can modify the content in
+ case common <literal><link linkend="filter">filters</link></literal>
+ aren't powerful enough. With the exception that this action doesn't
+ use pcrs-based filters, the notes in the
+ <literal><link linkend="filter">filter</link></literal> section apply.
+ </para>
+ <warning>
+ <para>
+ Currently external filters are executed with &my-app;'s privileges.
+ Only use external filters you understand and trust.
+ </para>
+ </warning>
+ <para>
+ This feature is experimental, the <literal><link
+ linkend="external-filter-syntax">syntax</link></literal>
+ may change in the future.
+ </para>
+
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>Example usage:</term>
+ <listitem>
+ <screen>+external-filter{fancy-filter}</screen>
+ </listitem>
+ </varlistentry>
+</variablelist>
+</sect3>
+
+<!-- ~~~~~ New section ~~~~~ -->
+<sect3 renderas="sect4" id="fast-redirects">
+<title>fast-redirects</title>
+
+<variablelist>
+ <varlistentry>
+ <term>Typical use:</term>
+ <listitem>
+ <para>Fool some click-tracking scripts and speed up indirect links.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>Effect:</term>
+ <listitem>
+ <para>
+ Detects redirection URLs and redirects the browser without contacting
+ the redirection server first.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>Type:</term>
+ <!-- boolean, parameterized, Multi-value -->
+ <listitem>
+ <para>Parameterized.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>Parameter:</term>
+ <listitem>
+ <itemizedlist>
+ <listitem>
+ <para>
+ <quote>simple-check</quote> to just search for the string <quote>http://</quote>
+ to detect redirection URLs.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
<quote>check-decoded-url</quote> to decode URLs (if necessary) before searching
for redirection URLs.
</para>
looks for the string <quote>http://</quote>, either in plain text
(invalid but often used) or encoded as <quote>http%3a//</quote>.
Some sites use their own URL encoding scheme, encrypt the address
- of the target server or replace it with a database id. In theses cases
+ of the target server or replace it with a database id. In these cases
<literal>fast-redirects</literal> is fooled and the request reaches the
redirection server where it probably gets logged.
</para>
<varlistentry>
<term>Example usage:</term>
<listitem>
- <para>
<screen>
{ +fast-redirects{simple-check} }
one.example.com
{ +fast-redirects{check-decoded-url} }
another.example.com/testing</screen>
- </para>
</listitem>
</varlistentry>
<term>Type:</term>
<!-- boolean, parameterized, Multi-value -->
<listitem>
- <para>Parameterized.</para>
+ <para>Multi-value.</para>
</listitem>
</varlistentry>
<para>
<quote>Rolling your own</quote>
filters requires a knowledge of
- <ulink url="http://en.wikipedia.org/wiki/Regular_expressions"><quote>Regular
+ <ulink url="https://en.wikipedia.org/wiki/Regular_expressions"><quote>Regular
Expressions</quote></ulink> and
- <ulink url="http://en.wikipedia.org/wiki/Html"><quote>HTML</quote></ulink>.
+ <ulink url="https://en.wikipedia.org/wiki/Html"><quote>HTML</quote></ulink>.
This is very powerful feature, and potentially very intrusive.
Filters should be used with caution, and where an equivalent
<quote>action</quote> is not available.
<listitem>
<para>
<anchor id="filter-js-annoyances">
- <screen>+filter{js-annoyances} # Get rid of particularly annoying JavaScript abuse.</screen>
</para>
+ <screen>+filter{js-annoyances} # Get rid of particularly annoying JavaScript abuse.</screen>
<para>
<anchor id="filter-js-events">
- <screen>+filter{js-events} # Kill JavaScript event bindings and timers (Radically destructive! Only for extra nasty sites).</screen>
</para>
+ <screen>+filter{js-events} # Kill JavaScript event bindings and timers (Radically destructive! Only for extra nasty sites).</screen>
<para>
<anchor id="filter-html-annoyances">
- <screen>+filter{html-annoyances} # Get rid of particularly annoying HTML abuse.</screen>
</para>
+ <screen>+filter{html-annoyances} # Get rid of particularly annoying HTML abuse.</screen>
<para>
<anchor id="filter-content-cookies">
- <screen>+filter{content-cookies} # Kill cookies that come in the HTML or JS content.</screen>
</para>
+ <screen>+filter{content-cookies} # Kill cookies that come in the HTML or JS content.</screen>
<para>
<anchor id="filter-refresh-tags">
- <screen>+filter{refresh-tags} # Kill automatic refresh tags if refresh time is larger than 9 seconds.</screen>
</para>
+ <screen>+filter{refresh-tags} # Kill automatic refresh tags if refresh time is larger than 9 seconds.</screen>
<para>
<anchor id="filter-unsolicited-popups">
- <screen>+filter{unsolicited-popups} # Disable only unsolicited pop-up windows.</screen>
</para>
+ <screen>+filter{unsolicited-popups} # Disable only unsolicited pop-up windows.</screen>
<para>
<anchor id="filter-all-popups">
- <screen>+filter{all-popups} # Kill all popups in JavaScript and HTML.</screen>
</para>
+ <screen>+filter{all-popups} # Kill all popups in JavaScript and HTML.</screen>
<para>
<anchor id="filter-img-reorder">
- <screen>+filter{img-reorder} # Reorder attributes in <img> tags to make the banners-by-* filters more effective.</screen>
</para>
+ <screen>+filter{img-reorder} # Reorder attributes in <img> tags to make the banners-by-* filters more effective.</screen>
<para>
<anchor id="filter-banners-by-size">
- <screen>+filter{banners-by-size} # Kill banners by size.</screen>
</para>
+ <screen>+filter{banners-by-size} # Kill banners by size.</screen>
<para>
<anchor id="filter-banners-by-link">
- <screen>+filter{banners-by-link} # Kill banners by their links to known clicktrackers.</screen>
</para>
+ <screen>+filter{banners-by-link} # Kill banners by their links to known clicktrackers.</screen>
<para>
<anchor id="filter-webbugs">
- <screen>+filter{webbugs} # Squish WebBugs (1x1 invisible GIFs used for user tracking).</screen>
</para>
+ <screen>+filter{webbugs} # Squish WebBugs (1x1 invisible GIFs used for user tracking).</screen>
<para>
<anchor id="filter-tiny-textforms">
- <screen>+filter{tiny-textforms} # Extend those tiny textareas up to 40x80 and kill the hard wrap.</screen>
</para>
+ <screen>+filter{tiny-textforms} # Extend those tiny textareas up to 40x80 and kill the hard wrap.</screen>
<para>
<anchor id="filter-jumping-windows">
- <screen>+filter{jumping-windows} # Prevent windows from resizing and moving themselves.</screen>
</para>
+ <screen>+filter{jumping-windows} # Prevent windows from resizing and moving themselves.</screen>
<para>
<anchor id="filter-frameset-borders">
- <screen>+filter{frameset-borders} # Give frames a border and make them resizable.</screen>
</para>
+ <screen>+filter{frameset-borders} # Give frames a border and make them resizable.</screen>
<para>
<anchor id="filter-iframes">
- <screen>+filter{iframes} # Removes all detected iframes. Should only be enabled for individual sites.</screen>
</para>
+ <screen>+filter{iframes} # Removes all detected iframes. Should only be enabled for individual sites.</screen>
<para>
<anchor id="filter-demoronizer">
- <screen>+filter{demoronizer} # Fix MS's non-standard use of standard charsets.</screen>
</para>
+ <screen>+filter{demoronizer} # Fix MS's non-standard use of standard charsets.</screen>
<para>
<anchor id="filter-shockwave-flash">
- <screen>+filter{shockwave-flash} # Kill embedded Shockwave Flash objects.</screen>
</para>
+ <screen>+filter{shockwave-flash} # Kill embedded Shockwave Flash objects.</screen>
<para>
<anchor id="filter-quicktime-kioskmode">
- <screen>+filter{quicktime-kioskmode} # Make Quicktime movies saveable.</screen>
</para>
+ <screen>+filter{quicktime-kioskmode} # Make Quicktime movies saveable.</screen>
<para>
<anchor id="filter-fun">
- <screen>+filter{fun} # Text replacements for subversive browsing fun!</screen>
</para>
+ <screen>+filter{fun} # Text replacements for subversive browsing fun!</screen>
<para>
<anchor id="filter-crude-parental">
- <screen>+filter{crude-parental} # Crude parental filtering. Note that this filter doesn't work reliably.</screen>
</para>
+ <screen>+filter{crude-parental} # Crude parental filtering. Note that this filter doesn't work reliably.</screen>
<para>
<anchor id="filter-ie-exploits">
- <screen>+filter{ie-exploits} # Disable some known Internet Explorer bug exploits.</screen>
</para>
+ <screen>+filter{ie-exploits} # Disable some known Internet Explorer bug exploits.</screen>
<para>
<anchor id="filter-site-specifics">
- <screen>+filter{site-specifics} # Cure for site-specific problems. Don't apply generally!</screen>
</para>
+ <screen>+filter{site-specifics} # Cure for site-specific problems. Don't apply generally!</screen>
<para>
<anchor id="filter-no-ping">
- <screen>+filter{no-ping} # Removes non-standard ping attributes in <a> and <area> tags.</screen>
</para>
+ <screen>+filter{no-ping} # Removes non-standard ping attributes in <a> and <area> tags.</screen>
<para>
<anchor id="filter-google">
- <screen>+filter{google} # CSS-based block for Google text ads. Also removes a width limitation and the toolbar advertisement.</screen>
</para>
+ <screen>+filter{google} # CSS-based block for Google text ads. Also removes a width limitation and the toolbar advertisement.</screen>
<para>
<anchor id="filter-yahoo">
- <screen>+filter{yahoo} # CSS-based block for Yahoo text ads. Also removes a width limitation.</screen>
</para>
+ <screen>+filter{yahoo} # CSS-based block for Yahoo text ads. Also removes a width limitation.</screen>
<para>
<anchor id="filter-msn">
- <screen>+filter{msn} # CSS-based block for MSN text ads. Also removes tracking URLs and a width limitation.</screen>
</para>
+ <screen>+filter{msn} # CSS-based block for MSN text ads. Also removes tracking URLs and a width limitation.</screen>
<para>
<anchor id="filter-blogspot">
- <screen>+filter{blogspot} # Cleans up some Blogspot blogs. Read the fine print before using this.</screen>
</para>
+ <screen>+filter{blogspot} # Cleans up some Blogspot blogs. Read the fine print before using this.</screen>
</listitem>
</varlistentry>
</variablelist>
<varlistentry>
<term>Example usage:</term>
<listitem>
- <para>
<screen>
+force-text-mode
- </screen>
- </para>
+</screen>
</listitem>
</varlistentry>
</variablelist>
<term>Type:</term>
<!-- Boolean, Parameterized, Multi-value -->
<listitem>
- <para>Multi-value.</para>
+ <para>Parameterized.</para>
</listitem>
</varlistentry>
for socks5 connections (with remote DNS resolution).
</para>
</listitem>
+ <listitem>
+ <para>
+ <quote>forward-webserver 127.0.0.1:80</quote> to use the HTTP
+ server listening at 127.0.0.1 port 80 without adjusting the
+ request headers.
+ </para>
+ <para>
+ This makes it more convenient to use Privoxy to make
+ existing websites available as onion services as well.
+ </para>
+ <para>
+ Many websites serve content with hardcoded URLs and
+ can't be easily adjusted to change the domain based
+ on the one used by the client.
+ </para>
+ <para>
+ Putting Privoxy between Tor and the webserver (or an stunnel
+ that forwards to the webserver) allows to rewrite headers and
+ content to make client and server happy at the same time.
+ </para>
+ <para>
+ Using Privoxy for webservers that are only reachable through
+ onion addresses and whose location is supposed to be secret
+ is not recommended and should not be necessary anyway.
+ </para>
+ </listitem>
</itemizedlist>
</listitem>
</varlistentry>
<para>
If the ports are missing or invalid, default values will be used. This might change
in the future and you shouldn't rely on it. Otherwise incorrect syntax causes Privoxy
- to exit.
+ to exit. Due to design limitations, invalid parameter syntax isn't detected until the
+ action is used the first time.
</para>
<para>
Use the <ulink url="http://config.privoxy.org/show-url-info">show-url-info CGI page</ulink>
<varlistentry>
<term>Example usage:</term>
<listitem>
- <para>
<screen>
-# Always use direct connections for requests previously tagged as
+# Use an ssh tunnel for requests previously tagged as
# <quote>User-Agent: fetch libfetch/2.0</quote> and make sure
# resuming downloads continues to work.
+#
# This way you can continue to use Tor for your normal browsing,
# without overloading the Tor network with your FreeBSD ports updates
# or downloads of bigger files like ISOs.
+#
# Note that HTTP headers are easy to fake and therefore their
# values are as (un)trustworthy as your clients and users.
-{+forward-override{forward .} \
+{+forward-override{forward-socks5 10.0.0.2:2222 .} \
-hide-if-modified-since \
-overwrite-last-modified \
}
TAG:^User-Agent: fetch libfetch/2\.0$
- </screen>
- </para>
+</screen>
</listitem>
</varlistentry>
</variablelist>
<varlistentry>
<term>Example usage:</term>
<listitem>
- <para>
<screen># Block all documents on example.org that end with ".js",
# but send an empty document instead of the usual HTML message.
{+block{Blocked JavaScript} +handle-as-empty-document}
example.org/.*\.js$
- </screen>
- </para>
+</screen>
</listitem>
</varlistentry>
</variablelist>
<varlistentry>
<term>Example usage (sections):</term>
<listitem>
- <para>
<screen># Generic image extensions:
#
{+handle-as-image}
{+block{Nasty banners.} +handle-as-image}
nasty-banner-server.example.com/junk.cgi\?output=trash
</screen>
- </para>
</listitem>
</varlistentry>
</variablelist>
<varlistentry>
<term>Example usage (section):</term>
<listitem>
- <para>
<screen># Pretend to use Canadian language settings.
{+hide-accept-language{en-ca} \
+hide-user-agent{Mozilla/5.0 (X11; U; OpenBSD i386; en-CA; rv:1.8.0.4) Gecko/20060628 Firefox/1.5.0.4} \
}
-/ </screen>
- </para>
+/
+</screen>
</listitem>
</varlistentry>
</variablelist>
<varlistentry>
<term>Example usage:</term>
<listitem>
- <para>
<screen># Disarm the download link in Sourceforge's patch tracker
{ -filter \
+content-type-overwrite{text/plain}\
+hide-content-disposition{block} }
.sourceforge.net/tracker/download\.php</screen>
- </para>
</listitem>
</varlistentry>
</variablelist>
<varlistentry>
<term>Example usage (section):</term>
<listitem>
- <para>
<screen># Let the browser revalidate but make tracking based on the time less likely.
{+hide-if-modified-since{-60} \
+overwrite-last-modified{randomize} \
+crunch-if-none-match}
/</screen>
- </para>
</listitem>
</varlistentry>
</variablelist>
<varlistentry>
<term>Example usage:</term>
<listitem>
- <para>
- <screen>+hide-from-header{block}</screen> or
+ <screen>+hide-from-header{block}</screen>
+ <para>or</para>
<screen>+hide-from-header{spam-me-senseless@sittingduck.example.com}</screen>
- </para>
</listitem>
</varlistentry>
</variablelist>
<varlistentry>
<term>Example usage:</term>
<listitem>
- <para>
- <screen>+hide-referrer{forge}</screen> or
+ <screen>+hide-referrer{forge}</screen>
+ <para>or</para>
<screen>+hide-referrer{http://www.yahoo.com/}</screen>
- </para>
</listitem>
</varlistentry>
</variablelist>
More information on known user-agent strings can be found at
<ulink url="http://www.user-agents.org/">http://www.user-agents.org/</ulink>
and
- <ulink url="http://en.wikipedia.org/wiki/User_agent">http://en.wikipedia.org/wiki/User_agent</ulink>.
+ <ulink url="https://en.wikipedia.org/wiki/User_agent">http://en.wikipedia.org/wiki/User_agent</ulink>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>Example usage:</term>
<listitem>
- <para>
<screen>+hide-user-agent{Netscape 6.1 (X11; I; Linux 2.4.18 i686)}</screen>
+ </listitem>
+ </varlistentry>
+</variablelist>
+</sect3>
+
+
+<!-- ~~~~~ New section ~~~~~ -->
+<sect3 renderas="sect4" id="https-inspection">
+<title>https-inspection</title>
+
+<variablelist>
+ <varlistentry>
+ <term>Typical use:</term>
+ <listitem>
+ <para>Filter encrypted requests and responses</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>Effect:</term>
+ <listitem>
+ <para>
+ Encrypted requests are decrypted, filtered and forwarded encrypted.
</para>
</listitem>
</varlistentry>
+
+ <varlistentry>
+ <term>Type:</term>
+ <!-- boolean, parameterized, Multi-value -->
+ <listitem>
+ <para>Boolean.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>Parameter:</term>
+ <listitem>
+ <para>
+ N/A
+ </para>
+ </listitem>
+ </varlistentry>
+
+<varlistentry>
+ <term>Notes:</term>
+ <listitem>
+ <para>
+ This action allows &my-app; to filter encrypted requests and responses.
+ For this to work &my-app; has to generate a certificate and send it
+ to the client which has to accept it.
+ </para>
+ <para>
+ Before this works the directives in the
+ <literal><ulink url="config.html#HTTPS-INSPECTION-DIRECTIVES">HTTPS inspection section</ulink></literal>
+ of the config file have to be configured.
+ </para>
+ <para>
+ Note that the action has to be enabled based on the CONNECT
+ request which doesn't contain a path. Enabling it based on
+ a pattern with path doesn't work as the path is only seen
+ by &my-app; if the action is already enabled.
+ </para>
+ <para>
+ This is an experimental feature.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>Example usage (section):</term>
+ <listitem>
+ <screen>{+https-inspection}
+www.example.com</screen>
+ </listitem>
+ </varlistentry>
+
+</variablelist>
+</sect3>
+
+
+<!-- ~~~~~ New section ~~~~~ -->
+<sect3 renderas="sect4" id="ignore-certificate-errors">
+<title>ignore-certificate-errors</title>
+
+<variablelist>
+ <varlistentry>
+ <term>Typical use:</term>
+ <listitem>
+ <para>Filter encrypted requests and responses without verifying the certificate</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>Effect:</term>
+ <listitem>
+ <para>
+ Encrypted requests are forwarded to sites without verifying the certificate.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>Type:</term>
+ <!-- Boolean, Parameterized, Multi-value -->
+ <listitem>
+ <para>Boolean.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>Parameter:</term>
+ <listitem>
+ <para>
+ N/A
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>Notes:</term>
+ <listitem>
+ <para>
+ When the
+ <link linkend="HTTPS-INSPECTION"><quote>+https-inspection</quote></link>
+ action is used &my-app; by default verifies that the remote site uses a valid
+ certificate.
+ </para>
+ <para>
+ If the certificate can't be validated by &my-app; the connection is aborted.
+ </para>
+ <para>
+ This action disables the certificate check so requests to sites
+ with certificates that can't be validated are allowed.
+ </para>
+ <para>
+ Note that enabling this action allows Man-in-the-middle attacks.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>Example usage:</term>
+ <listitem>
+ <screen>
+ {+ignore-certificate-errors}
+ www.example.org
+ </screen>
+ </listitem>
+ </varlistentry>
</variablelist>
</sect3>
<!-- I had trouble getting the spacing to look right in my browser -->
<!-- I probably have the wrong font setup, bollocks. -->
<!-- Apparently the emphasis tag uses a proportional font no matter what -->
- <para>
<screen>+limit-connect{443} # Port 443 is OK.
+limit-connect{80,443} # Ports 80 and 443 are OK.
+limit-connect{-3, 7, 20-100, 500-} # Ports less than 3, 7, 20 to 100 and above 500 are OK.
+limit-connect{-} # All ports are OK
+limit-connect{,} # No HTTPS/SSL traffic is allowed</screen>
- </para>
</listitem>
</varlistentry>
</variablelist>
<varlistentry>
<term>Example usages:</term>
<listitem>
- <para>
- <screen>+limit-cookie-lifetime{60}
- </screen>
- </para>
+ <screen>+limit-cookie-lifetime{60}</screen>
</listitem>
</varlistentry>
</variablelist>
<para>
Note that some (rare) ill-configured sites don't handle requests for uncompressed
documents correctly. Broken PHP applications tend to send an empty document body,
- some IIS versions only send the beginning of the content. If you enable
- <literal>prevent-compression</literal> per default, you might want to add
- exceptions for those sites. See the example for how to do that.
+ some IIS versions only send the beginning of the content and some content delivery
+ networks let the connection time out.
+ If you enable <literal>prevent-compression</literal> per default, you might
+ want to add exceptions for those sites. See the example for how to do that.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>Example usage (sections):</term>
<listitem>
- <para>
<screen>
# Selectively turn off compression, and enable a filter
#
#
{ -prevent-compression }
.compusa.com/</screen>
- </para>
</listitem>
</varlistentry>
<varlistentry>
<term>Example usage:</term>
<listitem>
- <para>
<screen># Let the browser revalidate without being tracked across sessions
{ +hide-if-modified-since{-60} \
+overwrite-last-modified{randomize} \
+crunch-if-none-match}
/</screen>
- </para>
</listitem>
</varlistentry>
</variablelist>
<link linkend="filter-file">filter file</link> section.
</para>
<para>
- This action will be ignored if you use it together with
- <literal><link linkend="block">block</link></literal>.
- It can be combined with
+ Requests can't be blocked and redirected at the same time,
+ applying this action together with
+ <literal><link linkend="block">block</link></literal>
+ is a configuration error. Currently the request is blocked
+ and an error message logged, the behavior may change in the
+ future and result in Privoxy rejecting the action file.
+ </para>
+ <para>
+ This action can be combined with
<literal><link linkend="fast-redirects">fast-redirects{check-decoded-url}</link></literal>
to redirect to a decoded version of a rewritten URL.
</para>
<varlistentry>
<term>Example usages:</term>
<listitem>
- <para>
<screen># Replace example.com's style sheet with another one
{ +redirect{http://localhost/css-replacements/example.com.css} }
example.com/stylesheet\.css
# Create a short, easy to remember nickname for a favorite site
# (relies on the browser to accept and forward invalid URLs to &my-app;)
-{ +redirect{http://www.privoxy.org/user-manual/actions-file.html} }
+{ +redirect{https://www.privoxy.org/user-manual/actions-file.html} }
a
# Always use the expanded view for Undeadly.org articles
{+redirect{s@^http://[^/]*/results\.aspx\?q=([^&]*).*@http://search.yahoo.com/search?p=$1@}}
search.msn.com//results\.aspx\?q=
+# Redirect http://example.com/&bla=fasel&toChange=foo (and any other value but "bar")
+# to http://example.com/&bla=fasel&toChange=bar
+#
+# The URL pattern makes sure that the following request isn't redirected again.
+{+redirect{s@toChange=[^&]+@toChange=bar@}}
+example.com/.*toChange=(?!bar)
+
+# Add a shortcut to look up illumos bugs
+{+redirect{s@^http://i([0-9]+)/.*@https://www.illumos.org/issues/$1@}}
+# Redirected URL = http://i4974/
+# Redirect Destination = https://www.illumos.org/issues/4974
+i[0-9][0-9][0-9][0-9]*/
+
+# Redirect requests for the old Tor Hidden Service of the Privoxy website to the new one
+{+redirect{s@^http://jvauzb4sb3bwlsnc.onion/@http://l3tczdiiwoo63iwxty4lhs6p7eaxop5micbn7vbliydgv63x5zrrrfyd.onion/@}}
+jvauzb4sb3bwlsnc.onion/
+
# Redirect remote requests for this manual
# to the local version delivered by Privoxy
{+redirect{s@^http://www@http://config@}}
www.privoxy.org/user-manual/</screen>
- </para>
</listitem>
</varlistentry>
<term>Type:</term>
<!-- boolean, parameterized, Multi-value -->
<listitem>
- <para>Parameterized.</para>
+ <para>Multi-value.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>Example usage (section):</term>
<listitem>
- <para>
<screen>
{+server-header-filter{html-to-xml}}
example.org/xml-instance-that-is-delivered-as-html
{+server-header-filter{xml-to-html}}
example.org/instance-that-is-delivered-as-xml-but-is-not
- </screen>
- </para>
+</screen>
</listitem>
</varlistentry>
<term>Type:</term>
<!-- boolean, parameterized, Multi-value -->
<listitem>
- <para>Parameterized.</para>
+ <para>Multi-value.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>Example usage (section):</term>
<listitem>
- <para>
<screen>
# Tag every request with the content type declared by the server
{+server-header-tagger{content-type}}
/
- </screen>
- </para>
+
+# If the response has a tag starting with 'image/' enable an external
+# filter that only applies to images.
+#
+# Note that the filter is not available by default, it's just a
+# <literal><link linkend="external-filter-syntax">silly example</link></literal>.
+{+external-filter{rotate-image} +force-text-mode}
+TAG:^image/
+</screen>
</listitem>
</varlistentry>
<varlistentry>
<term>Example usage:</term>
<listitem>
- <para>
<screen>+session-cookies-only</screen>
- </para>
</listitem>
</varlistentry>
</variablelist>
<para>
Built-in pattern:
</para>
- <para>
<screen>+set-image-blocker{pattern}</screen>
- </para>
<para>
Redirect to the BSD daemon:
</para>
- <para>
<screen>+set-image-blocker{http://www.freebsd.org/gifs/dae_up3.gif}</screen>
- </para>
<para>
Redirect to the built-in pattern for better caching:
</para>
- <para>
<screen>+set-image-blocker{http://config.privoxy.org/send-banner?type=pattern}</screen>
- </para>
</listitem>
</varlistentry>
</variablelist>
<!-- ~~~~~ New section ~~~~~ -->
-<sect3>
+<sect3 id="summary">
<title>Summary</title>
<para>
Note that many of these actions have the potential to cause a page to
Now let's define some aliases...
</para>
-<para>
<screen>
# Useful custom aliases we can use later.
#
#
c0 = +crunch-all-cookies
c1 = -crunch-all-cookies</screen>
-</para>
<para>
...and put them to use. These sections would appear in the lower part of an
up for the <quote>/</quote> pattern):
</para>
-<para>
<screen>
# These sites are either very complex or very keen on
# user data and require minimal interference to work:
{-filter{all-popups} -filter{unsolicited-popups}}
.dabs.com
.overclockers.co.uk</screen>
-</para>
<para>
Aliases like <quote>shop</quote> and <quote>fragile</quote> are typically used for
and <filename>user.action</filename> file and see how all these pieces come together:
</para>
-<sect3>
+<sect3 id="match-all">
<title>match-all.action</title>
<para>
Remember <emphasis>all actions are disabled when matching starts</emphasis>,
multiple lines with line continuation.
</para>
-<para>
<screen>
{ \
+<link linkend="CHANGE-X-FORWARDED-FOR">change-x-forwarded-for{block}</link> \
+<link linkend="SET-IMAGE-BLOCKER">set-image-blocker{pattern}</link> \
}
/ # Match all URLs
- </screen>
-</para>
+</screen>
<para>
The default behavior is now set.
</para>
</sect3>
-<sect3>
+<sect3 id="default-action">
<title>default.action</title>
<para>
that prevents older &my-app; versions from reading the file:
</para>
-<para>
<screen>
##########################################################################
# Settings -- Don't change! For internal Privoxy use ONLY.
##########################################################################
{{settings}}
for-privoxy-version=3.0.11</screen>
-</para>
<para>
After that comes the (optional) alias section. We'll use the example
that also explains why and how aliases are used:
</para>
-<para>
<screen>
##########################################################################
# Aliases
#
fragile = -<link linkend="BLOCK">block</link> -<link linkend="FILTER">filter</link> -crunch-all-cookies -<link linkend="FAST-REDIRECTS">fast-redirects</link> -<link linkend="HIDE-REFERER">hide-referrer</link>
shop = -crunch-all-cookies -<link linkend="FILTER-ALL-POPUPS">filter{all-popups}</link></screen>
-</para>
<para>
The first of our specialized sections is concerned with <quote>fragile</quote>
sites, i.e. sites that require minimum interference, because they are either
very complex or very keen on tracking you (and have mechanisms in place that
- make them unusable for people who avoid being tracked). We will simply use
+ make them unusable for people who avoid being tracked). We will use
our pre-defined <literal>fragile</literal> alias instead of stating the list
of actions explicitly:
</para>
-<para>
<screen>
##########################################################################
# Exceptions for sites that'll break under the default action set:
.office.microsoft.com # surprise, surprise!
.windowsupdate.microsoft.com
mail.google.com</screen>
-</para>
<para>
Shopping sites are not as fragile, but they typically
carts or item details. Again, we'll use a pre-defined alias:
</para>
-<para>
<screen>
# Shopping sites:
#
.worldpay.com # for quietpc.com
.jungle.com
.scan.co.uk</screen>
-</para>
<para>
The <literal><link linkend="FAST-REDIRECTS">fast-redirects</link></literal>
breaks some sites. So disable it for popular sites where we know it misbehaves:
</para>
-<para>
<screen>
{ -<link linkend="FAST-REDIRECTS">fast-redirects</link> }
login.yahoo.com
.altavista.com/.*(like|url|link):http
.altavista.com/trans.*urltext=http
.nytimes.com</screen>
-</para>
<para>
It is important that <application>Privoxy</application> knows which
good start:
</para>
-<para>
<screen>
##########################################################################
# Images:
#
{ +<link linkend="HANDLE-AS-IMAGE">handle-as-image</link> }
/.*\.(gif|jpe?g|png|bmp|ico)$</screen>
-</para>
<para>
And then there are known banner sources. They often use scripts to
action before, it still applies and needn't be repeated:
</para>
-<para>
<screen>
# Known ad generators:
#
.a[0-9].yimg.com/(?:(?!/i/).)*$
bs*.gsanet.com
.qkimg.net</screen>
-</para>
<para>
One of the most important jobs of <application>Privoxy</application>
to keep the example short:
</para>
-<para>
<screen>
##########################################################################
# Block these fine banners:
# Site-specific patterns (abbreviated):
#
.hitbox.com</screen>
-</para>
<para>
It's quite remarkable how many advertisers actually call their banner
servers ads.<replaceable>company</replaceable>.com, or call the directory
- in which the banners are stored simply <quote>banners</quote>. So the above
+ in which the banners are stored literally <quote>banners</quote>. So the above
generic patterns are surprisingly effective.
</para>
<para>
with no <literal><link linkend="BLOCK">block</link></literal> action applying.
</para>
-<para>
<screen>
##########################################################################
# Save some innocent victims of the above generic block patterns:
#
www.globalintersec.com/adv # (adv = advanced)
www.ugu.com/sui/ugu/adv</screen>
-</para>
<para>
Filtering source code can have nasty side effects,
disables <emphasis>all</emphasis> filters in one fell swoop!
</para>
-<para>
<screen>
# Don't filter code!
#
developer.
wiki.
.sourceforge.net</screen>
-</para>
<para>
The actual <filename>default.action</filename> is of course much more
</sect3>
-<sect3><title>user.action</title>
+<sect3 id="user-action"><title>user.action</title>
<para>
So far we are painting with a broad brush by setting general policies,
<!-- brief sample user.action here -->
-<para>
<screen>
# My user.action file. <fred@example.com></screen>
-</para>
<para>
As <link linkend="aliases">aliases</link> are local to the actions
<filename>default.action</filename>, unless you repeat them here:
</para>
-<para>
<screen>
# Aliases are local to the file they are defined in.
# (Re-)define aliases for this file:
# MIME types. We want the browser to force these to be text documents.
handle-as-text = -<link linkend="FILTER">filter</link> +-<link linkend="content-type-overwrite">content-type-overwrite{text/plain}</link> +-<link linkend="FORCE-TEXT-MODE">force-text-mode</link> -<link linkend="HIDE-CONTENT-DISPOSITION">hide-content-disposition</link></screen>
-</para>
-
<para>
Say you have accounts on some sites that you visit regularly, and
you don't want to have to log in manually each time. So you'd like
processing of cookies to make them only temporary.
</para>
-<para>
<screen>
{ allow-all-cookies }
sourceforge.net
.yahoo.com
.msdn.microsoft.com
.redhat.com</screen>
-</para>
<para>
Your bank is allergic to some filter, but you don't know which, so you disable them all:
</para>
-<para>
<screen>
{ -<link linkend="FILTER">filter</link> }
.your-home-banking-site.com</screen>
-</para>
<para>
Some file types you may not want to filter for various reasons:
</para>
-<para>
<screen>
# Technical documentation is likely to contain strings that might
# erroneously get altered by the JavaScript-oriented filters:
# so that Privoxy thinks it is getting HTML and starts filtering:
#
stupid-server.example.com/</screen>
-</para>
<para>
Example of a simple <link linkend="BLOCK">block</link> action. Say you've
in default.action anyway:
</para>
-<para>
<screen>
{ +<link linkend="BLOCK">block</link>{Nasty ads.} }
www.example.com/nasty-ads/sponsor\.gif
another.example.net/more/junk/here/</screen>
-</para>
<para>
The URLs of dynamically generated banners, especially from large banner
browser. Use cautiously.
</para>
-<para>
<screen>
{ +block-as-image }
.doubleclick.net
.fastclick.net
/Realmedia/ads/
ar.atwola.com/</screen>
-</para>
<para>
Now you noticed that the default configuration breaks Forbes Magazine,
that misbehave, and add those to our personalized list of troublemakers:
</para>
-<para>
<screen>
{ fragile }
.forbes.com
webmail.example.com
.mybank.com</screen>
-</para>
<para>
You like the <quote>fun</quote> text replacements in <filename>default.filter</filename>,
update-safe config, once and for all:
</para>
-<para>
<screen>
{ +<link linkend="filter-fun">filter{fun}</link> }
/ # For ALL sites!</screen>
-</para>
<para>
Note that the above is not really a good idea: There are exceptions
sites that you feel provide value to you:
</para>
-<para>
<screen>
{ allow-ads }
.sourceforge.net
.slashdot.org
.osdn.net</screen>
-</para>
<para>
Note that <literal>allow-ads</literal> has been aliased to
it should I choose to.
</para>
-<para>
<screen>
{ handle-as-text }
/.*\.sh$</screen>
-</para>
<para>
<filename>user.action</filename> is generally the best place to define
paths and patterns:
</para>
-<para>
<screen>
{ +<link linkend="set-image-blocker">set-image-blocker{blank}</link> }
/ # ALL sites</screen>
-</para>
</sect3>
</sect2>
</para>
<para>
- &my-app; supports three different filter actions:
+ &my-app; supports three different pcrs-based filter actions:
<literal><link linkend="filter">filter</link></literal> to
rewrite the content that is send to the client,
<literal><link linkend="client-header-filter">client-header-filter</link></literal>
applying actions through sections with <link linkend="tag-pattern">tag-patterns</link>.
</para>
+<para>
+ Finally &my-app; supports the
+ <literal><link linkend="external-filter">external-filter</link></literal> action
+ to enable <literal><link linkend="external-filter-syntax">external filters</link></literal>
+ written in proper programming languages.
+</para>
+
<para>
Multiple filter files can be defined through the <literal> <link
like this:
</para>
-<para>
<screen>FILTER: foo Replace all "foo" with "bar"</screen>
-</para>
<para>
Below that line, and up to the next header line, come the jobs that
in a syntax that imitates <ulink url="http://www.perl.org/">Perl</ulink>'s
<literal>s///</literal> operator. If you are familiar with Perl, you
will find this to be quite intuitive, and may want to look at the
- PCRS documentation for the subtle differences to Perl behaviour. Most
- notably, the non-standard option letter <literal>U</literal> is supported,
- which turns the default to ungreedy matching.
+ PCRS documentation for the subtle differences to Perl behaviour.
+</para>
+
+<para>
+ Most notably, the non-standard option letter <literal>U</literal> is supported,
+ which turns the default to ungreedy matching (add <literal>?</literal> to
+ quantifiers to turn them greedy again).
+</para>
+
+<para>
+ The non-standard option letter <literal>D</literal> (dynamic) allows
+ to use the variables $host, $origin (the IP address the request came from),
+ $path, $url and $listen-address (the address on which Privoxy accepted the
+ client request. Example: 127.0.0.1:8118).
+ They will be replaced with the value they refer to before the filter
+ is executed.
+</para>
+
+<para>
+ Note that '$' is a bad choice for a delimiter in a dynamic filter as you
+ might end up with unintended variables if you use a variable name
+ directly after the delimiter. Variables will be resolved without
+ escaping anything, therefore you also have to be careful not to chose
+ delimiters that appear in the replacement text. For example '<' should
+ be save, while '?' will sooner or later cause conflicts with $url.
+</para>
+
+<para>
+ The non-standard option letter <literal>T</literal> (trivial) prevents
+ parsing for backreferences in the substitute. Use it if you want to include
+ text like '$&' in your substitute without quoting.
</para>
<para>
If you are new to
- <ulink url="http://en.wikipedia.org/wiki/Regular_expressions"><quote>Regular
+ <ulink url="https://en.wikipedia.org/wiki/Regular_expressions"><quote>Regular
Expressions</quote></ulink>, you might want to take a look at
the <link linkend="regex">Appendix on regular expressions</link>, and
see the <ulink url="http://perldoc.perl.org/perlre.html">Perl
<!-- ~~~~~~~~ New section Header ~~~~~~~~~ -->
-<sect2><title>Filter File Tutorial</title>
+<sect2 id="filter-file-tut"><title>Filter File Tutorial</title>
<para>
Now, let's complete our <quote>foo</quote> content filter. We have already defined
the heading, but the jobs are still missing. Since all it does is to replace
needed:
</para>
-<para>
<screen>s/foo/bar/</screen>
-</para>
<para>
But wait! Didn't the comment say that <emphasis>all</emphasis> occurrences
we'll need to add the <literal>g</literal> option:
</para>
-<para>
<screen>s/foo/bar/g</screen>
-</para>
<para>
Our complete filter now looks like this:
</para>
-<para>
+
<screen>FILTER: foo Replace all "foo" with "bar"
s/foo/bar/g</screen>
-</para>
<para>
Let's look at some real filters for more interesting examples. Here you see
</para>
-<para>
<screen>
FILTER: js-annoyances Get rid of particularly annoying JavaScript abuse
# Get rid of JavaScript referrer tracking. Test page: http://www.randomoddness.com/untitled.htm
#
s|(<script.*)document\.referrer(.*</script>)|$1"Not Your Business!"$2|Usg</screen>
-</para>
<para>
Following the header line and a comment, you see the job. Note that it uses
this time only point out the constructs of special interest:
</para>
-<para>
<screen>
# The status bar is for displaying link targets, not pointless blahblah
#
s/window\.status\s*=\s*(['"]).*?\1/dUmMy=1/ig</screen>
-</para>
<para>
<literal>\s</literal> stands for whitespace characters (space, tab, newline,
you move your mouse over links.
</para>
-<para>
<screen>
# Kill OnUnload popups. Yummy. Test: http://www.zdnet.com/zdsubs/yahoo/tree/yfs.html
#
s/(<body [^>]*)onunload(.*>)/$1never$2/iU</screen>
-</para>
<para>
Including the
The last example is from the fun department:
</para>
-<para>
<screen>
FILTER: fun Fun text replacements
# Spice the daily news:
#
s/microsoft(?!\.com)/MicroSuck/ig</screen>
-</para>
<para>
Note the <literal>(?!\.com)</literal> part (a so-called negative lookahead)
still replacing the word everywhere else.
</para>
-<para>
<screen>
# Buzzword Bingo (example for extended regex syntax)
#
| unrivalled \
*<font color="red"><b>BINGO!</b></font> \
*igx</screen>
-</para>
<para>
The <literal>x</literal> option in this job turns on extended syntax, and allows for
<para>
The purpose of this filter is to get rid of particularly annoying JavaScript abuse.
To that end, it
+ </para>
<itemizedlist>
<listitem>
<para>
</para>
</listitem>
</itemizedlist>
- </para>
<para>
Use with caution. This is an aggressive filter, and can break sites that
rely heavily on JavaScript.
sometimes appear on some pages, or user agents that don't correct for this on
the fly.
<!--
- My version of Mozilla (ancient) shows litte square boxes for quote
+ My version of Mozilla (ancient) shows little square boxes for quote
characters, and apostrophes on moronized pages. So many pages have this, I
can read them fine now. HB 08/27/06
-->
</variablelist>
</sect2>
+
+<!-- ~~~~~~~~ New section Header ~~~~~~~~~ -->
+<sect2 id="external-filter-syntax"><title>External filter syntax</title>
+<para>
+ External filters are scripts or programs that can modify the content in
+ case common <literal><link linkend="filter">filters</link></literal>
+ aren't powerful enough.
+</para>
+<para>
+ External filters can be written in any language the platform &my-app; runs
+ on supports.
+</para>
+<para>
+ They are controlled with the
+ <literal><link linkend="external-filter">external-filter</link></literal> action
+ and have to be defined in the <literal><link linkend="filterfile">filterfile</link></literal>
+ first.
+</para>
+<para>
+ The header looks like any other filter, but instead of pcrs jobs, external
+ filters contain a single job which can be a program or a shell script (which
+ may call other scripts or programs).
+</para>
+<para>
+ External filters read the content from STDIN and write the rewritten
+ content to STDOUT.
+ The environment variables PRIVOXY_URL, PRIVOXY_PATH, PRIVOXY_HOST,
+ PRIVOXY_ORIGIN, PRIVOXY_LISTEN_ADDRESS can be used to get some details
+ about the client request.
+</para>
+<para>
+ &my-app; will temporary store the content to filter in the
+ <literal><link linkend="temporary-directory">temporary-directory</link></literal>.
+</para>
+
+ <screen>
+EXTERNAL-FILTER: cat Pointless example filter that doesn't actually modify the content
+/bin/cat
+
+# Incorrect reimplementation of the filter above in POSIX shell.
+#
+# Note that it's a single job that spans multiple lines, the line
+# breaks are not passed to the shell, thus the semicolons are required.
+#
+# If the script isn't trivial, it is recommended to put it into an external file.
+#
+# In general, writing external filters entirely in POSIX shell is not
+# considered a good idea.
+EXTERNAL-FILTER: cat2 Pointless example filter that despite its name may actually modify the content
+while read line; \
+do \
+ echo "$line"; \
+done
+
+EXTERNAL-FILTER: rotate-image Rotate an image by 180 degree. Test filter with limited value.
+/usr/local/bin/convert - -rotate 180 -
+
+EXTERNAL-FILTER: citation-needed Adds a "[citation needed]" tag to an image. The coordinates may need adjustment.
+/usr/local/bin/convert - -pointsize 16 -fill white -annotate +17+418 "[citation needed]" -
+</screen>
+
+<warning>
+ <para>
+ Currently external filters are executed with &my-app;'s privileges!
+ Only use external filters you understand and trust.
+ </para>
+</warning>
+<para>
+ External filters are experimental and the syntax may change in the future.
+</para>
+</sect2>
+
</sect1>
<!-- ~ End section ~ -->
is in an alpha or beta development stage:
</para>
-<para>
<screen>
<!-- @if-unstable-start -->
... beta warning HTML code goes here ...
<!-- if-unstable-end@ --></screen>
-</para>
<para>
If the "unstable" symbol is set, everything in between and including
will disappear, leaving nothing but an empty comment:
</para>
-<para>
<screen><!-- --></screen>
-</para>
<para>
There's also an if-then-else construct and an <literal>#include</literal>
<para>
<application>Privoxy</application> is free software; you can
- redistribute it and/or modify it under the terms of the
- <citetitle>GNU General Public License</citetitle>, version 2,
- as published by the Free Software Foundation and included in
- the next section.
+ redistribute and/or modify its source code under the terms
+ of the <citetitle>GNU General Public License</citetitle>
+ as published by the Free Software Foundation, either version 2
+ of the license, or (at your option) any later version.
+</para>
+
+<para>
+ The same is true for <application>Privoxy</application> binaries
+ unless they are linked with a
+ <ulink url="https://tls.mbed.org/">mbed TLS</ulink> version
+ that is licensed under the Apache 2.0 license in which
+ case you can redistribute and/or modify the <application>Privoxy</application>
+ binaries under the terms of the <citetitle>GNU General Public License</citetitle>
+ as published by the Free Software Foundation, either version 3
+ of the license, or (at your option) any later version.
+</para>
+
+<para>
+ Both licenses are included in the next section.
</para>
<!-- ~~~~~ New section ~~~~~ -->
<sect2 id="license"><title>License</title>
-<para>
+
+<sect3 id="gplv2"><title>GNU General Public License version 2</title>
<screen><![ RCDATA [ &GPLv2; ]]></screen>
-</para>
+</sect3>
+
+<sect3 id="gplv3"><title>GNU General Public License version 3</title>
+ <screen><![ RCDATA [ &GPLv3; ]]></screen>
+</sect3>
</sect2>
<!-- ~ End section ~ -->
and then some examples:
</para>
-<para><simplelist>
+<simplelist>
<member>
<emphasis>.</emphasis> - Matches any single character, e.g. <quote>a</quote>,
<quote>A</quote>, <quote>4</quote>, <quote>:</quote>, or <quote>@</quote>.
</member>
-</simplelist></para>
+</simplelist>
-<para><simplelist>
+<simplelist>
<member>
<emphasis>?</emphasis> - The preceding character or expression is matched ZERO or ONE
times. Either/or.
</member>
-</simplelist></para>
+</simplelist>
-<para><simplelist>
+<simplelist>
<member>
<emphasis>+</emphasis> - The preceding character or expression is matched ONE or MORE
times.
</member>
-</simplelist></para>
+</simplelist>
-<para><simplelist>
+<simplelist>
<member>
<emphasis>*</emphasis> - The preceding character or expression is matched ZERO or MORE
times.
</member>
-</simplelist></para>
+</simplelist>
-<para><simplelist>
+<simplelist>
<member>
<emphasis>\</emphasis> - The <quote>escape</quote> character denotes that
the following character should be taken literally. This is used where one of the
sure the period is recognized only as a period (and not expanded to its
meta-character meaning of any single character).
</member>
-</simplelist></para>
+</simplelist>
-<para><simplelist>
+<simplelist>
<member>
<emphasis>[ ]</emphasis> - Characters enclosed in brackets will be matched if
any of the enclosed characters are encountered. For instance, <quote>[0-9]</quote>
matches any numeric digit (zero through nine). As an example, we can combine
this with <quote>+</quote> to match any digit one of more times: <quote>[0-9]+</quote>.
</member>
-</simplelist></para>
+</simplelist>
-<para><simplelist>
+<simplelist>
<member>
<emphasis>( )</emphasis> - parentheses are used to group a sub-expression,
or multiple sub-expressions.
</member>
-</simplelist></para>
+</simplelist>
-<para><simplelist>
+<simplelist>
<member>
<emphasis>|</emphasis> - The <quote>bar</quote> character works like an
<quote>or</quote> conditional statement. A match is successful if the
and would match either <quote>this example</quote> or <quote>that
example</quote>, and nothing else.
</member>
-</simplelist></para>
+</simplelist>
<para>
These are just some of the ones you are likely to use when matching URLs with
<!-- ~~~~~ New section ~~~~~ -->
-<sect2>
+<sect2 id="internal-pages">
<title>Privoxy's Internal Pages</title>
<para>
rules and other configuration options, and even turn
<application>Privoxy's</application> filtering off, all with
a web browser.
-
</para>
<para>
necessary either.
</para>
-<para>
<itemizedlist>
<listitem>
<listitem>
<para>
- Show information about the current configuration, including viewing and
- editing of actions files:
+ View and toggle client tags:
</para>
<blockquote>
<para>
- <ulink url="http://config.privoxy.org/show-status">http://config.privoxy.org/show-status</ulink>
+ <ulink url="http://config.privoxy.org/client-tags">http://config.privoxy.org/client-tags</ulink>
</para>
</blockquote>
</listitem>
<listitem>
<para>
- Show the source code version numbers:
+ Show information about the current configuration, including viewing and
+ editing of actions files:
</para>
- <blockquote>
<para>
- <ulink url="http://config.privoxy.org/show-version">http://config.privoxy.org/show-version</ulink>
+ <ulink url="http://config.privoxy.org/show-status">http://config.privoxy.org/show-status</ulink>
</para>
</blockquote>
</listitem>
</listitem>
</itemizedlist>
-</para>
-
-<para>
- These may be bookmarked for quick reference. See next.
-
-</para>
-
-<sect3 id="bookmarklets">
-<title>Bookmarklets</title>
-<para>
- Below are some <quote>bookmarklets</quote> to allow you to easily access a
- <quote>mini</quote> version of some of <application>Privoxy's</application>
- special pages. They are designed for MS Internet Explorer, but should work
- equally well in Netscape, Mozilla, and other browsers which support
- JavaScript. They are designed to run directly from your bookmarks - not by
- clicking the links below (although that should work for testing).
-</para>
-<para>
- To save them, right-click the link and choose <quote>Add to Favorites</quote>
- (IE) or <quote>Add Bookmark</quote> (Netscape). You will get a warning that
- the bookmark <quote>may not be safe</quote> - just click OK. Then you can run the
- Bookmarklet directly from your favorites/bookmarks. For even faster access,
- you can put them on the <quote>Links</quote> bar (IE) or the <quote>Personal
- Toolbar</quote> (Netscape), and run them with a single click.
-</para>
-
-<para>
- <itemizedlist>
-
- <listitem>
- <para>
- <ulink
- url="javascript:void(window.open('http://config.privoxy.org/toggle?mini=y&set=enabled','ijbstatus','width=250,height=100,resizable=yes,scrollbars=no,toolbar=no,location=no,directories=no,status=no,menubar=no,copyhistory=no').focus());">Privoxy - Enable</ulink>
- </para>
- </listitem>
-
- <listitem>
- <para>
- <ulink
- url="javascript:void(window.open('http://config.privoxy.org/toggle?mini=y&set=disabled','ijbstatus','width=250,height=100,resizable=yes,scrollbars=no,toolbar=no,location=no,directories=no,status=no,menubar=no,copyhistory=no').focus());">Privoxy - Disable</ulink>
- </para>
- </listitem>
-
- <listitem>
- <para>
- <ulink
- url="javascript:void(window.open('http://config.privoxy.org/toggle?mini=y&set=toggle','ijbstatus','width=250,height=100,resizable=yes,scrollbars=no,toolbar=no,location=no,directories=no,status=no,menubar=no,copyhistory=no').focus());">Privoxy - Toggle Privoxy</ulink> (Toggles between enabled and disabled)
- </para>
- </listitem>
-
- <listitem>
- <para>
- <ulink
- url="javascript:void(window.open('http://config.privoxy.org/toggle?mini=y','ijbstatus','width=250,height=2,resizable=yes,scrollbars=no,toolbar=no,location=no,directories=no,status=no,menubar=no,copyhistory=no').focus());">Privoxy- View Status</ulink>
- </para>
- </listitem>
-<!--
- <listitem>
- <para>
- <ulink url="javascript:w=Math.floor(screen.width/2);h=Math.floor(screen.height*0.9);void(window.open('http://www.privoxy.org/actions/index.php?url='+escape(location.href),'Feedback','screenx='+w+',width='+w+',height='+h+',scrollbars=yes,toolbar=no,location=no,directories=no,status=no,menubar=no,copyhistory=no').focus());">Privoxy - Submit Actions File Feedback</ulink>
- </para>
- </listitem>
- -->
- <listitem>
- <para>
- <ulink url="javascript:void(window.open('http://config.privoxy.org/show-url-info?url='+escape(location.href),'Why').focus());">Privoxy - Why?</ulink>
- </para>
- </listitem>
- </itemizedlist>
-</para>
-
-<para>
- Credit: The site which gave us the general idea for these bookmarklets is
- <ulink url="http://www.bookmarklets.com/">www.bookmarklets.com</ulink>. They
- have more information about bookmarklets.
-</para>
-
-
-</sect3>
</sect2>
page is requested by your browser:
</para>
-<para>
<itemizedlist>
<listitem>
<para>
</listitem>
</itemizedlist>
-</para>
+
<para>
NOTE: This is somewhat of a simplistic overview of what happens with each URL
request. For the sake of brevity and simplicity, we have focused on
<para>
One quick test to see if <application>Privoxy</application> is causing a problem
or not, is to disable it temporarily. This should be the first troubleshooting
- step. See <link linkend="bookmarklets">the Bookmarklets</link> section on a quick
- and easy way to do this (be sure to flush caches afterward!). Looking at the
+ step (be sure to flush caches afterward!). Looking at the
logs is a good idea too. (Note that both the toggle feature and logging are
enabled via <filename>config</filename> file settings, and may need to be
turned <quote>on</quote>.)
configuration may vary):
</para>
-<para>
<screen>
Matches for http://www.google.com:
In file: user.action <guibutton>[ View ]</guibutton> <guibutton>[ Edit ]</guibutton>
(no matches in this file)
</screen>
-</para>
<para>
This is telling us how we have defined our
And finally we pull it all together in the bottom section and summarize how
<application>Privoxy</application> is applying all its <quote>actions</quote>
to <quote>google.com</quote>:
-
</para>
-<para>
<screen>
-
Final results:
-add-header
-server-header-filter{xml-to-html}
-server-header-filter{html-to-xml}
-session-cookies-only
- +set-image-blocker {pattern} </screen>
-</para>
+ +set-image-blocker {pattern}
+</screen>
<para>
Notice the only difference here to the previous listing, is to
Now another example, <quote>ad.doubleclick.net</quote>:
</para>
-<para>
<screen>
-
{ +block{Domains starts with "ad"} }
ad*.
{ +block{Doubleclick banner server} +handle-as-image }
.[a-vx-z]*.doubleclick.net
</screen>
-</para>
<para>
We'll just show the interesting part here - the explicit matches. It is
This one is giving us problems. We are getting a blank page. Hmmm ...
</para>
-<para>
<screen>
-
Matches for http://www.example.net/adsl/HOWTO/:
In file: default.action <guibutton>[ View ]</guibutton> <guibutton>[ Edit ]</guibutton>
{ +block{Path contains "ads".} +handle-as-image }
/ads
</screen>
-</para>
<para>
Ooops, the <quote>/adsl/</quote> is matching <quote>/ads</quote> in our
wins). There are various ways to handle such exceptions. Example:
</para>
-<para>
<screen>
-
{ -block }
/adsl
</screen>
-</para>
<para>
Now the page displays ;-)
we did with:
</para>
-<para>
<screen>
-
{ +block{Path starts with "ads".} +handle-as-image }
/ads
</screen>
-</para>
<para>
That actually was very helpful and pointed us quickly to where the problem
<link linkend="FILTER"><quote>+filter</quote></link>:
</para>
-<para>
<screen>
-
{ shop }
.quietpc.com
.worldpay.com # for quietpc.com
.scan.co.uk
.forbes.com
</screen>
-</para>
<para>
<quote><literal>{ shop }</literal></quote> is an <quote>alias</quote> that expands to
<quote><literal>{ -filter -session-cookies-only }</literal></quote>.
Or you could do your own exception to negate filtering:
-
</para>
-<para>
<screen>
-
{ -filter }
# Disable ALL filter actions for sites in this section
.forbes.com
developer.ibm.com
localhost
</screen>
-</para>
<para>
This would turn off all filtering for these sites. This is best
actions that are the most likely to cause trouble. This can be used as a
last resort for problem sites.
</para>
-<para>
- <screen>
+ <screen>
{ fragile }
# Handle with care: easy to break
mail.google.
mybank.example.com</screen>
-</para>
<para>
projects / privoxy.git / blobdiff