-Junkbuster User Manual
-
-By: Junkbuster Developers
-
-$Id: user-manual.sgml,v 1.47 2002/03/11 13:13:27 swa Exp $
-
-The user manual gives users information on how to install, configure and use
-Internet Junkbuster. Internet Junkbuster is a web proxy with advanced filtering
-capabilities for protecting privacy, filtering web page content, managing
-cookies, controlling access, and removing ads, banners, pop-ups and other
-obnoxious Internet Junk. Junkbuster has a very flexible configuration and can
-be customized to suit individual needs and tastes. Internet Junkbuster has
-application for both stand-alone systems and multi-user networks.
-
-You can find the latest version of the user manual at http://
-ijbswa.sourceforge.net/user-manual/.
--------------------------------------------------------------------------------
+Junkbuster User Manual
-Table of Contents
+ By: Junkbuster Developers
+
+ $Id: user-manual.sgml,v 1.48 2002/03/12 06:33:01 hal9 Exp $
+
+ The user manual gives users information on how to install, configure
+ and use Internet Junkbuster. Internet Junkbuster is a web proxy with
+ advanced filtering capabilities for protecting privacy, filtering web
+ page content, managing cookies, controlling access, and removing ads,
+ banners, pop-ups and other obnoxious Internet Junk. Junkbuster has a
+ very flexible configuration and can be customized to suit individual
+ needs and tastes. Internet Junkbuster has application for both
+ stand-alone systems and multi-user networks.
+
+ You can find the latest version of the user manual at
+ [1]http://ijbswa.sourceforge.net/user-manual/.
+ _________________________________________________________________
+
+ Table of Contents
+ 1. [2]Introduction
+
+ 1.1. [3]New Features
+
+ 2. [4]Installation
+
+ 2.1. [5]Source
+ 2.2. [6]Red Hat
+ 2.3. [7]SuSE
+ 2.4. [8]OS/2
+ 2.5. [9]Windows
+ 2.6. [10]Other
+
+ 3. [11]JunkBuster Configuration
+
+ 3.1. [12]Controlling Junkbuster with Your Web Browser
+ 3.2. [13]Configuration Files Overview
+ 3.3. [14]The Main Configuration File
+
+ 3.3.1. [15]Defining Other Configuration Files
+ 3.3.2. [16]Other Configuration Options
+ 3.3.3. [17]Access Control List (ACL)
+ 3.3.4. [18]Forwarding
+ 3.3.5. [19]Windows GUI Options
+
+ 3.4. [20]The Actions File
+
+ 3.4.1. [21]URL Domain and Path Syntax
+ 3.4.2. [22]Actions
+ 3.4.3. [23]Aliases
+
+ 3.5. [24]The Filter File
+ 3.6. [25]Templates
+
+ 4. [26]Quickstart to Using Junkbuster
+
+ 4.1. [27]Command Line Options
+
+ 5. [28]Contacting the Developers, Bug Reporting and Feature Requests
+ 6. [29]Copyright and History
+
+ 6.1. [30]License
+ 6.2. [31]History
+
+ 7. [32]See also
+ 8. [33]Appendix
+
+ 8.1. [34]Regular Expressions
+
+ 21
+ 22
+ 23
+ 24
+ 25
+ 26
+ 27
+ 28
+ 29
+
+ 8.2. [35]JunkBuster's Internal Pages
+
1. Introduction
+
+ Internet Junkbuster is a web proxy with advanced filtering
+ capabilities for protecting privacy, filtering and modifying web page
+ content, managing cookies, controlling access, and removing ads,
+ banners, pop-ups and other obnoxious Internet Junk. Junkbuster has a
+ very flexible configuration and can be customized to suit individual
+ needs and tastes. Internet Junkbuster has application for both
+ stand-alone systems and multi-user networks.
+
+ This documentation is included with the current BETA version of
+ Internet Junkbuster and is mostly complete at this point. The most up
+ to date reference for the time being is still the comments in the
+ source files and in the individual configuration files. Development of
+ version 3.0 is currently nearing completion, and includes many
+ significant changes and enhancements over earlier versions. The target
+ release date for stable v3.0 is "soon" ;-)
+
+ Since this is a BETA 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 may be bugs, though hopefully not many!
+ _________________________________________________________________
- 1.1. New Features
+1.1. New Features
+
+ In addition to Junkbuster's traditional features of ad and banner
+ blocking and cookie management, this is a list of new features
+ currently under development:
+
+ * Integrated browser based configuration and control utility
+ ([36]http://i.j.b). Browser-based tracing of rule and filter
+ effects.
+ * Modularized configuration that will allow for system wide
+ settings, and individual user settings. (not implemented yet,
+ probably a 3.1 feature)
+ * Blocking of annoying pop-up browser windows.
+ * HTTP/1.1 compliant (most, but not all 1.1 features are supported).
+ * Support for Perl Compatible Regular Expressions in the
+ configuration files, and generally a more sophisticated and
+ flexible configuration syntax over previous versions.
+ * GIF de-animation.
+ * Web page content filtering (removes banners based on size,
+ invisible "web-bugs", JavaScript, pop-ups, status bar abuse, etc.)
+ * Bypass many click-tracking scripts (avoids script redirection).
+ * Multi-threaded (POSIX and native threads).
+ * Auto-detection and re-reading of config file changes.
+ * User-customizable HTML templates (e.g. 404 error page).
+ * Improved cookie management features (e.g. session based cookies).
+ * Builds from source on most UNIX-like systems. Packages available
+ for: Linux (RedHat, SuSE, or Debian), Windows, Sun Solaris, Mac
+ OSX, OS/2, HP-UX 11 and AmigaOS.
+ * In addition, the configuration is much more powerful and versatile
+ over-all.
+ _________________________________________________________________
2. Installation
-
- 2.1. Source
- 2.2. Red Hat
- 2.3. SuSE
- 2.4. OS/2
- 2.5. Windows
- 2.6. Other
-
-3. JunkBuster Configuration
-
- 3.1. Controlling Junkbuster with Your Web Browser
- 3.2. Configuration Files Overview
- 3.3. The Main Configuration File
-
- 3.3.1. Defining Other Configuration Files
- 3.3.2. Other Configuration Options
- 3.3.3. Access Control List (ACL)
- 3.3.4. Forwarding
- 3.3.5. Windows GUI Options
-
- 3.4. The Actions File
-
- 3.4.1. URL Domain and Path Syntax
- 3.4.2. Actions
- 3.4.3. Aliases
-
- 3.5. The Filter File
- 3.6. Templates
-
-4. Quickstart to Using Junkbuster
-
- 4.1. Command Line Options
-
-5. Contacting the Developers, Bug Reporting and Feature Requests
-6. Copyright and History
-
- 6.1. License
- 6.2. History
-
-7. See also
-8. Appendix
-
- 8.1. Regular Expressions
- 8.2. JunkBuster's Internal Pages
-
-1. Introduction
-Internet Junkbuster is a web proxy with advanced filtering capabilities for
-protecting privacy, filtering and modifying web page content, managing cookies,
-controlling access, and removing ads, banners, pop-ups and other obnoxious
-Internet Junk. Junkbuster has a very flexible configuration and can be
-customized to suit individual needs and tastes. Internet Junkbuster has
-application for both stand-alone systems and multi-user networks.
-
-This documentation is included with the current BETA version of Internet
-Junkbuster and is mostly complete at this point. The most up to date reference
-for the time being is still the comments in the source files and in the
-individual configuration files. Development of version 3.0 is currently nearing
-completion, and includes many significant changes and enhancements over earlier
-versions. The target release date for stable v3.0 is "soon" ;-)
-
-Since this is a BETA 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 may be bugs, though hopefully not many!
-
--------------------------------------------------------------------------------
+ Junkbuster is available as raw source code, or pre-compiled binaries.
+ See the [37]Junkbuster Home Page for binaries and current release
+ info. Junkbuster is also available via [38]CVS. This is the
+ recommended approach at this time. But please be aware that CVS is
+ constantly changing, and it may break in mysterious ways.
+ _________________________________________________________________
+
+2.1. Source
-1.1. New Features
+ For gzipped tar archives, unpack the source:
+
+ tar xzvf ijb_source_* [.tgz or .tar.gz]
+ cd ijb_source_2.9.11_beta
-In addition to Junkbuster's traditional features of ad and banner blocking and
-cookie management, this is a list of new features currently under development:
+ For retrieving the current CVS sources, you'll need the CVS package
+ installed first. To download CVS source:
+
+ cvs -d:pserver:anonymous@cvs.ijbswa.sourceforge.net:/cvsroot/ijbswa login
+ cvs -z3 -d:pserver:anonymous@cvs.ijbswa.sourceforge.net:/cvsroot/ijbswa co cu
+rrent
+ cd current
- * Integrated browser based configuration and control utility (http://i.j.b).
- Browser-based tracing of rule and filter effects.
+ This will create a directory named current/, which will contain the
+ source tree.
- * Modularized configuration that will allow for system wide settings, and
- individual user settings. (not implemented yet, probably a 3.1 feature)
+ Then, in either case, to build from tarball/CVS source:
- * Blocking of annoying pop-up browser windows.
+ ./configure (--help to see options)
+ make (the make from gnu, gmake for *BSD)
+ su
+ make -n install (to see where all the files will go)
+ make install (to really install)
+
+ For Redhat and SuSE Linux RPM packages, see below.
+ _________________________________________________________________
- * HTTP/1.1 compliant (most, but not all 1.1 features are supported).
+2.2. Red Hat
+
+ To build Redhat RPM packages, install source as above. Then:
- * Support for Perl Compatible Regular Expressions in the configuration files,
- and generally a more sophisticated and flexible configuration syntax over
- previous versions.
+ autoheader [suggested for CVS source]
+ autoconf [suggested for CVS source]
+ ./configure
+ make redhat-dist
+
+ This will create both binary and src RPMs in the usual places.
+ Example:
- * GIF de-animation.
+ /usr/src/redhat/RPMS/i686/junkbuster-2.9.11-1.i686.rpm
- * Web page content filtering (removes banners based on size, invisible
- "web-bugs", JavaScript, pop-ups, status bar abuse, etc.)
+ /usr/src/redhat/SRPMS/junkbuster-2.9.11-1.src.rpm
- * Bypass many click-tracking scripts (avoids script redirection).
+ To install, of course:
- * Multi-threaded (POSIX and native threads).
+ rpm -Uvv /usr/src/redhat/RPMS/i686/junkbuster-2.9.11-1.i686.rpm
+
+ This will place the Junkbuster configuration files in
+ /etc/junkbuster/, and log files in /var/log/junkbuster/.
+ _________________________________________________________________
- * Auto-detection and re-reading of config file changes.
+2.3. SuSE
+
+ To build SuSE RPM packages, install source as above. Then:
- * User-customizable HTML templates (e.g. 404 error page).
+ autoheader [suggested for CVS source]
+ autoconf [suggested for CVS source]
+ ./configure
+ make suse-dist
+
+ This will create both binary and src RPMs in the usual places.
+ Example:
- * Improved cookie management features (e.g. session based cookies).
+ /usr/src/packages/RPMS/i686/junkbuster-2.9.11-1.i686.rpm
- * Builds from source on most UNIX-like systems. Packages available for: Linux
- (RedHat, SuSE, or Debian), Windows, Sun Solaris, Mac OSX, OS/2, HP-UX 11
- and AmigaOS.
+ /usr/src/packages/SRPMS/junkbuster-2.9.11-1.src.rpm
- * In addition, the configuration is much more powerful and versatile
- over-all.
+ To install, of course:
--------------------------------------------------------------------------------
-
-2. Installation
-
-Junkbuster is available as raw source code, or pre-compiled binaries. See the
-Junkbuster Home Page for binaries and current release info. Junkbuster is also
-available via CVS. This is the recommended approach at this time. But please be
-aware that CVS is constantly changing, and it may break in mysterious ways.
-
--------------------------------------------------------------------------------
-
-2.1. Source
-
-For gzipped tar archives, unpack the source:
-
- tar xzvf ijb_source_* [.tgz or .tar.gz]
- cd ijb_source_2.9.11_beta
-
-
-For retrieving the current CVS sources, you'll need the CVS package installed
-first. To download CVS source:
-
- cvs -d:pserver:anonymous@cvs.ijbswa.sourceforge.net:/cvsroot/ijbswa login
- cvs -z3 -d:pserver:anonymous@cvs.ijbswa.sourceforge.net:/cvsroot/ijbswa co current
- cd current
-
-
-This will create a directory named current/, which will contain the source
-tree.
-
-Then, in either case, to build from tarball/CVS source:
-
- ./configure (--help to see options)
- make (the make from gnu, gmake for *BSD)
- su
- make -n install (to see where all the files will go)
- make install (to really install)
-
-
-For Redhat and SuSE Linux RPM packages, see below.
-
--------------------------------------------------------------------------------
-
-2.2. Red Hat
-
-To build Redhat RPM packages, install source as above. Then:
-
- autoheader [suggested for CVS source]
- autoconf [suggested for CVS source]
- ./configure
- make redhat-dist
-
-
-This will create both binary and src RPMs in the usual places. Example:
-
- /usr/src/redhat/RPMS/i686/junkbuster-2.9.11-1.i686.rpm
-
- /usr/src/redhat/SRPMS/junkbuster-2.9.11-1.src.rpm
-
-To install, of course:
-
- rpm -Uvv /usr/src/redhat/RPMS/i686/junkbuster-2.9.11-1.i686.rpm
-
-
-This will place the Junkbuster configuration files in /etc/junkbuster/, and log
-files in /var/log/junkbuster/.
-
--------------------------------------------------------------------------------
-
-2.3. SuSE
-
-To build SuSE RPM packages, install source as above. Then:
-
- autoheader [suggested for CVS source]
- autoconf [suggested for CVS source]
- ./configure
- make suse-dist
-
-
-This will create both binary and src RPMs in the usual places. Example:
-
- /usr/src/packages/RPMS/i686/junkbuster-2.9.11-1.i686.rpm
-
- /usr/src/packages/SRPMS/junkbuster-2.9.11-1.src.rpm
-
-To install, of course:
-
- rpm -Uvv /usr/src/packages/RPMS/i686/junkbuster-2.9.11-1.i686.rpm
-
-
-This will place the Junkbuster configuration files in /etc/junkbuster/, and log
-files in /var/log/junkbuster/.
-
--------------------------------------------------------------------------------
+ rpm -Uvv /usr/src/packages/RPMS/i686/junkbuster-2.9.11-1.i686.rpm
+ This will place the Junkbuster configuration files in
+ /etc/junkbuster/, and log files in /var/log/junkbuster/.
+ _________________________________________________________________
+
2.4. OS/2
-Junkbuster is packaged in a WarpIN self- installing archive. The
-self-installing program will be named depending on the release version,
-something like: ijbos2_setup_1.2.3.exe. In order to install it, simply run this
-executable or double-click on its icon and follow the WarpIN installation
-panels. A shadow of the Junkbuster executable will be placed in your startup
-folder so it will start automatically whenever OS/2 starts.
-
-The directory you choose to install Junkbuster into will contain all of the
-configuration files.
-
-If you would like to build binary images on OS/2 yourself, you will need a few
-Unix-like tools: autoconf, autoheader and sh. These tools will be used to
-create the required config.h file, which is not part of the source distribution
-because it differs based on platform. You will also need a compiler. The
-distribution has been created using IBM VisualAge compilers, but you can use
-any compiler you like. GCC/EMX has the disadvantage of needing to be
-single-threaded due to a limitation of EMX's implementation of the select()
-socket call.
-
-In addition to needing the source code distribution as outlined earlier, you
-will want to extract the os2seutp directory from CVS:
-
- cvs -d:pserver:anonymous@cvs.ijbswa.sourceforge.net:/cvsroot/ijbswa login
- cvs -z3 -d:pserver:anonymous@cvs.ijbswa.sourceforge.net:/cvsroot/ijbswa co os2setup
-
-
-This will create a directory named os2setup/, which will contain the
-Makefile.vac makefile and os2build.cmd which is used to completely create the
-binary distribution. The sequence of events for building the executable for
-yourself goes something like this:
-
- cd current
- autoheader
- autoconf
- sh configure
- cd ..\os2setup
- nmake -f Makefile.vac
-
-
-You will see this sequence laid out in os2build.cmd.
-
--------------------------------------------------------------------------------
-
+ Junkbuster is packaged in a WarpIN self- installing archive. The
+ self-installing program will be named depending on the release
+ version, something like: ijbos2_setup_1.2.3.exe. In order to install
+ it, simply run this executable or double-click on its icon and follow
+ the WarpIN installation panels. A shadow of the Junkbuster executable
+ will be placed in your startup folder so it will start automatically
+ whenever OS/2 starts.
+
+ The directory you choose to install Junkbuster into will contain all
+ of the configuration files.
+
+ If you would like to build binary images on OS/2 yourself, you will
+ need a few Unix-like tools: autoconf, autoheader and sh. These tools
+ will be used to create the required config.h file, which is not part
+ of the source distribution because it differs based on platform. You
+ will also need a compiler. The distribution has been created using IBM
+ VisualAge compilers, but you can use any compiler you like. GCC/EMX
+ has the disadvantage of needing to be single-threaded due to a
+ limitation of EMX's implementation of the select() socket call.
+
+ In addition to needing the source code distribution as outlined
+ earlier, you will want to extract the os2seutp directory from CVS:
+ cvs -d:pserver:anonymous@cvs.ijbswa.sourceforge.net:/cvsroot/ijbswa login
+
+ cvs -z3 -d:pserver:anonymous@cvs.ijbswa.sourceforge.net:/cvsroot/ijbswa co os2
+setup
+
+ This will create a directory named os2setup/, which will contain the
+ Makefile.vac makefile and os2build.cmd which is used to completely
+ create the binary distribution. The sequence of events for building
+ the executable for yourself goes something like this:
+ cd current
+ autoheader
+ autoconf
+ sh configure
+ cd ..\os2setup
+ nmake -f Makefile.vac
+
+ You will see this sequence laid out in os2build.cmd.
+ _________________________________________________________________
+
2.5. Windows
-Click-click. (I need help on this. Not a clue here. Also for configuration
-section below. HB.)
-
--------------------------------------------------------------------------------
-
+ Click-click. (I need help on this. Not a clue here. Also for
+ configuration section below. HB.)
+ _________________________________________________________________
+
2.6. Other
-Some quick notes on other Operating Systems.
-
-For FreeBSD (and other *BSDs?), the build will require gmake instead of the
-included make. gmake is available from http://www.gnu.org. The rest should be
-the same as above for Linux/Unix.
-
--------------------------------------------------------------------------------
-
+ Some quick notes on other Operating Systems.
+
+ For FreeBSD (and other *BSDs?), the build will require gmake instead
+ of the included make. gmake is available from [39]http://www.gnu.org.
+ The rest should be the same as above for Linux/Unix.
+ _________________________________________________________________
+
3. JunkBuster Configuration
-All JunkBuster configuration is kept in text files. These files can be edited
-with a text editor. Many important aspects of JunkBuster can also be controlled
-easily with a web browser.
-
--------------------------------------------------------------------------------
-
+ All JunkBuster configuration is kept in text files. These files can be
+ edited with a text editor. Many important aspects of JunkBuster can
+ also be controlled easily with a web browser.
+ _________________________________________________________________
+
3.1. Controlling Junkbuster with Your Web Browser
-JunkBuster can be reached by the special URL http://i.j.b/ (or alternately
-http://ijbswa.sourceforge.net/config/, which is an internal page. You will see
-the following section:
-
-Please choose from the following options:
-
- * Show information about the current configuration
- * Show the source code version numbers
- * Show the client's request headers.
- * Show which actions apply to a URL and why
- * Toggle JunkBuster on or off
- * Edit the actions list
-
-
-
-This should be self-explanatory. Note the last item is an editor for the
-"actions list", which is where much of the ad, banner, cookie, and URL blocking
-magic is configured as well as other advanced features of Junkbuster. This is
-an easy way to adjust various aspects of Junkbuster configuration. The actions
-file, and other configuration files, are explained in detail below. Junkbuster
-will automatically detect any changes to these files.
+ JunkBuster can be reached by the special URL [40]http://i.j.b/ (or
+ alternately [41]http://ijbswa.sourceforge.net/config/, which is an
+ internal page. You will see the following section:
+
+Please choose from the following options:
-"Toggle JunkBuster On or Off" is handy for sites that might have problems with
-your current actions and filters, or just to test if a site misbehaves, whether
-it is JunkBuster causing the problem or not. Junkbuster continues to run as a
-proxy in this case, but all filtering is disabled.
+ * Show information about the current configuration
+ * Show the source code version numbers
+ * Show the client's request headers.
+ * Show which actions apply to a URL and why
+ * Toggle JunkBuster on or off
+ * Edit the actions list
--------------------------------------------------------------------------------
+ This should be self-explanatory. Note the last item is an editor for
+ the "actions list", which is where much of the ad, banner, cookie, and
+ URL blocking magic is configured as well as other advanced features of
+ Junkbuster. This is an easy way to adjust various aspects of
+ Junkbuster configuration. The actions file, and other configuration
+ files, are explained in detail below. Junkbuster will automatically
+ detect any changes to these files.
+
+ "Toggle JunkBuster On or Off" is handy for sites that might have
+ problems with your current actions and filters, or just to test if a
+ site misbehaves, whether it is JunkBuster causing the problem or not.
+ Junkbuster continues to run as a proxy in this case, but all filtering
+ is disabled.
+ _________________________________________________________________
+
3.2. Configuration Files Overview
-For Unix, *BSD and Linux, all configuration files are located in /etc/
-junkbuster/ by default. For MS Windows, OS/2, and AmigaOS these are all in the
-same directory as the Junkbuster executable. The name and number of
-configuration files has changed from previous versions, and is subject to
-change as development progresses.
-
-The installed defaults provide a reasonable starting point, though possibly
-aggressive by some standards. For the time being, there are only three default
-configuration files (this will change in time):
-
- * The main configuration file is named config on Linux, Unix, BSD, OS/2, and
- AmigaOS and config.txt on Windows.
-
- * The ijb.action file is used to define various "actions" relating to images,
- banners, pop-ups, access restrictions, banners and cookies. There is a CGI
- based editor for this file that can be accessed via http://i.j.b. (Other
- actions files are included as well with differing levels of filtering and
- blocking, e.g. ijb-basic.action.)
-
- * The re_filterfile file can be used to re-write the raw page content,
- including viewable text as well as embedded HTML and JavaScript, and
- whatever else lurks on any given web page.
-
-ijb.action and re_filterfile can use Perl style regular expressions for maximum
-flexibility. All files use the "#" character to denote a comment. Such lines
-are not processed by Junkbuster. After making any changes, there is no need to
-restart Junkbuster in order for the changes to take effect. Junkbuster should
-detect such changes automatically.
-
-While under development, the configuration content is subject to change. The
-below documentation may not be accurate by the time you read this. Also, what
-constitutes a "default" setting, may change, so please check all your
-configuration files on important issues.
-
--------------------------------------------------------------------------------
-
+ For Unix, *BSD and Linux, all configuration files are located in
+ /etc/junkbuster/ by default. For MS Windows, OS/2, and AmigaOS these
+ are all in the same directory as the Junkbuster executable. The name
+ and number of configuration files has changed from previous versions,
+ and is subject to change as development progresses.
+
+ The installed defaults provide a reasonable starting point, though
+ possibly aggressive by some standards. For the time being, there are
+ only three default configuration files (this will change in time):
+
+ * The main configuration file is named config on Linux, Unix, BSD,
+ OS/2, and AmigaOS and config.txt on Windows.
+ * The ijb.action file is used to define various "actions" relating
+ to images, banners, pop-ups, access restrictions, banners and
+ cookies. There is a CGI based editor for this file that can be
+ accessed via [42]http://i.j.b. (Other actions files are included
+ as well with differing levels of filtering and blocking, e.g.
+ ijb-basic.action.)
+ * The re_filterfile file can be used to re-write the raw page
+ content, including viewable text as well as embedded HTML and
+ JavaScript, and whatever else lurks on any given web page.
+
+ ijb.action and re_filterfile can use Perl style regular expressions
+ for maximum flexibility. All files use the "#" character to denote a
+ comment. Such lines are not processed by Junkbuster. After making any
+ changes, there is no need to restart Junkbuster in order for the
+ changes to take effect. Junkbuster should detect such changes
+ automatically.
+
+ While under development, the configuration content is subject to
+ change. The below documentation may not be accurate by the time you
+ read this. Also, what constitutes a "default" setting, may change, so
+ please check all your configuration files on important issues.
+ _________________________________________________________________
+
3.3. The Main Configuration File
-Again, the main configuration file is named config on Linux/Unix/BSD and OS/2,
-and config.txt on Windows. Configuration lines consist of an initial keyword
-followed by a list of values, all separated by whitespace (any number of spaces
-or tabs). For example:
-
- blockfile blocklist.ini
+ Again, the main configuration file is named config on Linux/Unix/BSD
+ and OS/2, and config.txt on Windows. Configuration lines consist of an
+ initial keyword followed by a list of values, all separated by
+ whitespace (any number of spaces or tabs). For example:
+
+ blockfile blocklist.ini
+
+ Indicates that the blockfile is named "blocklist.ini".
+
+ A "#" indicates a comment. Any part of a line following a "#" is
+ ignored, except if the "#" is preceded by a "\".
+
+ Thus, by placing a "#" at the start of an existing configuration line,
+ you can make it a comment and it will be treated as if it weren't
+ there. This is called "commenting out" an option and can be useful to
+ turn off features: If you comment out the "logfile" line, junkbuster
+ will not log to a file at all. Watch for the "default:" section in
+ each explanation to see what happens if the option is left unset (or
+ commented out).
+
+ Long lines can be continued on the next line by using a "\" as the
+ very last character.
+
+ There are various aspects of Junkbuster behavior that can be tuned.
+ _________________________________________________________________
-
-Indicates that the blockfile is named "blocklist.ini".
-
-A "#" indicates a comment. Any part of a line following a "#" is ignored,
-except if the "#" is preceded by a "\".
-
-Thus, by placing a "#" at the start of an existing configuration line, you can
-make it a comment and it will be treated as if it weren't there. This is called
-"commenting out" an option and can be useful to turn off features: If you
-comment out the "logfile" line, junkbuster will not log to a file at all. Watch
-for the "default:" section in each explanation to see what happens if the
-option is left unset (or commented out).
-
-Long lines can be continued on the next line by using a "\" as the very last
-character.
-
-There are various aspects of Junkbuster behavior that can be tuned.
-
--------------------------------------------------------------------------------
-
3.3.1. Defining Other Configuration Files
-Junkbuster can use a number of other files to tell it what ads to block, what
-cookies to accept, etc. This section of the configuration file tells Junkbuster
-where to find all those other files.
-
-On Windows and AmigaOS, Junkbuster looks for these files in the same directory
-as the executable. On Unix and OS/2, Junkbuster looks for these files in the
-current working directory. In either case, an absolute path name can be used to
-avoid problems.
-
-When development goes modular and multi-user, the blocker, filter, and per-user
-config will be stored in subdirectories of "confdir". For now, only confdir/
-templates is used for storing HTML templates for CGI results.
-
-The location of the configuration files:
-
- confdir /etc/junkbuster # No trailing /, please.
+ Junkbuster can use a number of other files to tell it what ads to
+ block, what cookies to accept, etc. This section of the configuration
+ file tells Junkbuster where to find all those other files.
-
-The directory where all logging (i.e. logfile and jarfile) takes place. No
-trailing "/", please:
-
- logdir /var/log/junkbuster
+ On Windows and AmigaOS, Junkbuster looks for these files in the same
+ directory as the executable. On Unix and OS/2, Junkbuster looks for
+ these files in the current working directory. In either case, an
+ absolute path name can be used to avoid problems.
-
-Note that all file specifications below are relative to the above two
-directories!
-
-The "ijb.action" file contains patterns to specify the actions to apply to
-requests for each site. Default: Cookies to and from all destinations are kept
-only during the current browser session (i.e. they are not saved to disk).
-Pop-ups are disabled for all sites. All sites are filtered through selected
-sections of "re_filterfile". No sites are blocked. The JunkBuster logo is
-displayed for filtered ads and other images . The syntax of this file is
-explained in detail below.
-
- actionsfile ijb.action
+ When development goes modular and multi-user, the blocker, filter, and
+ per-user config will be stored in subdirectories of "confdir". For
+ now, only confdir/templates is used for storing HTML templates for CGI
+ results.
-
-The "re_filterfile" file contains content modification rules that use "regular
-expressions". These rules permit powerful changes on the content of Web pages,
-e.g., you could disable your favorite JavaScript annoyances, re-write the
-actual displayed text, or just have some fun replacing "Microsoft" with
-"MicroSuck" wherever it appears on a Web page. Default: whatever the developers
-are playing with :-/
-
-Filtering requires buffering the page content, which may appear to slow down
-page rendering since nothing is displayed until all content has passed the
-filters. (It does not really take longer, but seems that way since the page is
-not incrementally displayed.) This effect will be more noticeable on slower
-connections.
-
- re_filterfile re_filterfile
+ The location of the configuration files:
-
-The logfile is where all logging and error messages are written. The logfile
-can be useful for tracking down a problem with Junkbuster (e.g., it's not
-blocking an ad you think it should block) but in most cases you probably will
-never look at it.
-
-Your logfile will grow indefinitely, and you will probably want to periodically
-remove it. On Unix systems, you can do this with a cron job (see "man cron").
-For Redhat, a logrotate script has been included.
-
-On SuSE Linux systems, you can place a line like "/var/log/junkbuster.* +1024k
-644 nobody.nogroup" in /etc/logfiles, with the effect that cron.daily will
-automatically archive, gzip, and empty the log, when it exceeds 1M size.
-
-Default: Log to the a file named logfile. Comment out to disable logging.
-
- logfile logfile
+ confdir /etc/junkbuster # No trailing /, please.
-
-The "jarfile" defines where Junkbuster stores the cookies it intercepts. Note
-that if you use a "jarfile", it may grow quite large. Default: Don't store
-intercepted cookies.
-
- #jarfile jarfile
+ The directory where all logging (i.e. logfile and jarfile) takes
+ place. No trailing "/", please:
-
-If you specify a "trustfile", Junkbuster will only allow access to sites that
-are named in the trustfile. You can also mark sites as trusted referrers, with
-the effect that access to untrusted sites will be granted, if a link from a
-trusted referrer was used. The link target will then be added to the
-"trustfile". This is a very restrictive feature that typical users most
-probably want to leave disabled. Default: Disabled, don't use the trust
-mechanism.
-
- #trustfile trust
+ logdir /var/log/junkbuster
-
-If you use the trust mechanism, it is a good idea to write up some on-line
-documentation about your blocking policy and to specify the URL(s) here. They
-will appear on the page that your users receive when they try to access
-untrusted content. Use multiple times for multiple URLs. Default: Don't display
-links on the "untrusted" info page.
-
- trust-info-url http://www.your-site.com/why_we_block.html
- trust-info-url http://www.your-site.com/what_we_allow.html
+ Note that all file specifications below are relative to the above two
+ directories!
-
--------------------------------------------------------------------------------
-
-3.3.2. Other Configuration Options
-
-This part of the configuration file contains options that control how
-Junkbuster operates.
-
-"Admin-address" should be set to the email address of the proxy administrator.
-It is used in many of the proxy-generated pages. Default: fill@me.in.please.
-
- #admin-address fill@me.in.please
+ The "ijb.action" file contains patterns to specify the actions to
+ apply to requests for each site. Default: Cookies to and from all
+ destinations are kept only during the current browser session (i.e.
+ they are not saved to disk). Pop-ups are disabled for all sites. All
+ sites are filtered through selected sections of "re_filterfile". No
+ sites are blocked. The JunkBuster logo is displayed for filtered ads
+ and other images . The syntax of this file is explained in detail
+ [43]below.
-
-"Proxy-info-url" can be set to a URL that contains more info about this
-Junkbuster installation, it's configuration and policies. It is used in many of
-the proxy-generated pages and its use is highly recommended in multi-user
-installations, since your users will want to know why certain content is
-blocked or modified. Default: Don't show a link to on-line documentation.
-
- proxy-info-url http://www.your-site.com/proxy.html
+ actionsfile ijb.action
-
-"Listen-address" specifies the address and port where Junkbuster will listen
-for connections from your Web browser. The default is to listen on the
-localhost port 8118, and this is suitable for most users. (In your web browser,
-under proxy configuration, list the proxy server as "localhost" and the port as
-"8118").
-
-If you already have another service running on port 8118, or if you want to
-serve requests from other machines (e.g. on your local network) as well, you
-will need to override the default. The syntax is "listen-address
-[<ip-address>]:<port>". If you leave out the IP address, junkbuster will bind
-to all interfaces (addresses) on your machine and may become reachable from the
-Internet. In that case, consider using access control lists (acl's) (see
-"aclfile" above), or a firewall.
-
-For example, suppose you are running Junkbuster on a machine which has the
-address 192.168.0.1 on your local private network (192.168.0.0) and has another
-outside connection with a different address. You want it to serve requests from
-inside only:
-
- listen-address 192.168.0.1:8118
+ The "re_filterfile" file contains content modification rules that use
+ "regular expressions". These rules permit powerful changes on the
+ content of Web pages, e.g., you could disable your favorite JavaScript
+ annoyances, re-write the actual displayed text, or just have some fun
+ replacing "Microsoft" with "MicroSuck" wherever it appears on a Web
+ page. Default: whatever the developers are playing with :-/
-
-If you want it to listen on all addresses (including the outside connection):
-
- listen-address :8118
+ Filtering requires buffering the page content, which may appear to
+ slow down page rendering since nothing is displayed until all content
+ has passed the filters. (It does not really take longer, but seems
+ that way since the page is not incrementally displayed.) This effect
+ will be more noticeable on slower connections.
-
-If you do this, consider using ACLs (see "aclfile" above). Note: you will need
-to point your browser(s) to the address and port that you have configured here.
-Default: localhost:8118 (127.0.0.1:8118).
-
-The debug option sets the level of debugging information to log in the logfile
-(and to the console in the Windows version). A debug level of 1 is informative
-because it will show you each request as it happens. Higher levels of debug are
-probably only of interest to developers.
-
- debug 1 # GPC = show each GET/POST/CONNECT request
- debug 2 # CONN = show each connection status
- debug 4 # IO = show I/O status
- debug 8 # HDR = show header parsing
- debug 16 # LOG = log all data into the logfile
- debug 32 # FRC = debug force feature
- debug 64 # REF = debug regular expression filter
- debug 128 # = debug fast redirects
- debug 256 # = debug GIF de-animation
- debug 512 # CLF = Common Log Format
- debug 1024 # = debug kill pop-ups
- debug 4096 # INFO = Startup banner and warnings.
- debug 8192 # ERROR = Non-fatal errors
-
-
-It is highly recommended that you enable ERROR reporting (debug 8192), at least
-until the next stable release.
-
-The reporting of FATAL errors (i.e. ones which crash JunkBuster) is always on
-and cannot be disabled.
-
-If you want to use CLF (Common Log Format), you should set "debug 512" ONLY, do
-not enable anything else.
-
-Multiple "debug" directives, are OK - they're logical-OR'd together.
-
- debug 15 # same as setting the first 4 listed above
+ re_filterfile re_filterfile
-
-Default:
-
- debug 1 # URLs
- debug 4096 # Info
- debug 8192 # Errors - *we highly recommended enabling this*
+ The logfile is where all logging and error messages are written. The
+ logfile can be useful for tracking down a problem with Junkbuster
+ (e.g., it's not blocking an ad you think it should block) but in most
+ cases you probably will never look at it.
-
-Junkbuster normally uses "multi-threading", a software technique that permits
-it to handle many different requests simultaneously. In some cases you may wish
-to disable this -- particularly if you're trying to debug a problem. The
-"single-threaded" option forces Junkbuster to handle requests sequentially.
-Default: Multi-threaded mode.
-
- #single-threaded
+ Your logfile will grow indefinitely, and you will probably want to
+ periodically remove it. On Unix systems, you can do this with a cron
+ job (see "man cron"). For Redhat, a logrotate script has been
+ included.
-
-"toggle" allows you to temporarily disable all Junkbuster's filtering. Just set
-"toggle 0".
-
-The Windows version of Junkbuster puts an icon in the system tray, which also
-allows you to change this option. If you right-click on that icon (or select
-the "Options" menu), one choice is "Enable". Clicking on enable toggles
-Junkbuster on and off. This is useful if you want to temporarily disable
-Junkbuster, e.g., to access a site that requires cookies which you would
-otherwise have blocked. This can also be toggled via a web browser at the
-Junkbuster internal address of http://i.j.b on any platform.
-
-"toggle 1" means Junkbuster runs normally, "toggle 0" means that Junkbuster
-becomes a non-anonymizing non-blocking proxy. Default: 1 (on).
-
- toggle 1
+ On SuSE Linux systems, you can place a line like
+ "/var/log/junkbuster.* +1024k 644 nobody.nogroup" in /etc/logfiles,
+ with the effect that cron.daily will automatically archive, gzip, and
+ empty the log, when it exceeds 1M size.
-
-For content filtering, i.e. the "+filter" and "+deanimate-gif" actions, it is
-necessary that Junkbuster buffers the entire document body. This can be
-potentially dangerous, since a server could just keep sending data indefinitely
-and wait for your RAM to exhaust. With nasty consequences.
-
-The buffer-limit option lets you set the maximum size in Kbytes that each
-buffer may use. When the documents buffer exceeds this size, it is flushed to
-the client unfiltered and no further attempt to filter the rest of it is made.
-Remember that there may multiple threads running, which might require
-increasing the "buffer-limit" Kbytes each, unless you have enabled
-"single-threaded" above.
-
- buffer-limit 4069
+ Default: Log to the a file named logfile. Comment out to disable
+ logging.
-
-To enable the web-based ijb.action file editor set enable-edit-actions to 1, or
-0 to disable. Note that you must have compiled JunkBuster with support for this
-feature, otherwise this option has no effect. This internal page can be reached
-at http://i.j.b.
-
-Security note: If this is enabled, anyone who can use the proxy can edit the
-actions file, and their changes will affect all users. For shared proxies, you
-probably want to disable this. Default: enabled.
-
- enable-edit-actions 1
+ logfile logfile
-
-Allow JunkBuster to be toggled on and off remotely, using your web browser. Set
-"enable-remote-toggle"to 1 to enable, and 0 to disable. Note that you must have
-compiled JunkBuster with support for this feature, otherwise this option has no
-effect.
-
-Security note: If this is enabled, anyone who can use the proxy can toggle it
-on or off (see http://i.j.b), and their changes will affect all users. For
-shared proxies, you probably want to disable this. Default: enabled.
-
- enable-remote-toggle 1
+ The "jarfile" defines where Junkbuster stores the cookies it
+ intercepts. Note that if you use a "jarfile", it may grow quite large.
+ Default: Don't store intercepted cookies.
+ #jarfile jarfile
+
+ If you specify a "trustfile", Junkbuster will only allow access to
+ sites that are named in the trustfile. You can also mark sites as
+ trusted referrers, with the effect that access to untrusted sites will
+ be granted, if a link from a trusted referrer was used. The link
+ target will then be added to the "trustfile". This is a very
+ restrictive feature that typical users most probably want to leave
+ disabled. Default: Disabled, don't use the trust mechanism.
+
+ #trustfile trust
+
+ If you use the trust mechanism, it is a good idea to write up some
+ on-line documentation about your blocking policy and to specify the
+ URL(s) here. They will appear on the page that your users receive when
+ they try to access untrusted content. Use multiple times for multiple
+ URLs. Default: Don't display links on the "untrusted" info page.
+
+ trust-info-url http://www.your-site.com/why_we_block.html
+ trust-info-url http://www.your-site.com/what_we_allow.html
+ _________________________________________________________________
+
+3.3.2. Other Configuration Options
--------------------------------------------------------------------------------
-
+ This part of the configuration file contains options that control how
+ Junkbuster operates.
+
+ "Admin-address" should be set to the email address of the proxy
+ administrator. It is used in many of the proxy-generated pages.
+ Default: fill@me.in.please.
+
+ #admin-address fill@me.in.please
+
+ "Proxy-info-url" can be set to a URL that contains more info about
+ this Junkbuster installation, it's configuration and policies. It is
+ used in many of the proxy-generated pages and its use is highly
+ recommended in multi-user installations, since your users will want to
+ know why certain content is blocked or modified. Default: Don't show a
+ link to on-line documentation.
+
+ proxy-info-url http://www.your-site.com/proxy.html
+
+ "Listen-address" specifies the address and port where Junkbuster will
+ listen for connections from your Web browser. The default is to listen
+ on the localhost port 8118, and this is suitable for most users. (In
+ your web browser, under proxy configuration, list the proxy server as
+ "localhost" and the port as "8118").
+
+ If you already have another service running on port 8118, or if you
+ want to serve requests from other machines (e.g. on your local
+ network) as well, you will need to override the default. The syntax is
+ "listen-address [<ip-address>]:<port>". If you leave out the IP
+ address, junkbuster will bind to all interfaces (addresses) on your
+ machine and may become reachable from the Internet. In that case,
+ consider using access control lists (acl's) (see "aclfile" above), or
+ a firewall.
+
+ For example, suppose you are running Junkbuster on a machine which has
+ the address 192.168.0.1 on your local private network (192.168.0.0)
+ and has another outside connection with a different address. You want
+ it to serve requests from inside only:
+
+ listen-address 192.168.0.1:8118
+
+ If you want it to listen on all addresses (including the outside
+ connection):
+
+ listen-address :8118
+
+ If you do this, consider using ACLs (see "aclfile" above). Note: you
+ will need to point your browser(s) to the address and port that you
+ have configured here. Default: localhost:8118 (127.0.0.1:8118).
+
+ The debug option sets the level of debugging information to log in the
+ logfile (and to the console in the Windows version). A debug level of
+ 1 is informative because it will show you each request as it happens.
+ Higher levels of debug are probably only of interest to developers.
+
+ debug 1 # GPC = show each GET/POST/CONNECT request
+ debug 2 # CONN = show each connection status
+ debug 4 # IO = show I/O status
+ debug 8 # HDR = show header parsing
+ debug 16 # LOG = log all data into the logfile
+ debug 32 # FRC = debug force feature
+ debug 64 # REF = debug regular expression filter
+ debug 128 # = debug fast redirects
+ debug 256 # = debug GIF de-animation
+ debug 512 # CLF = Common Log Format
+ debug 1024 # = debug kill pop-ups
+ debug 4096 # INFO = Startup banner and warnings.
+ debug 8192 # ERROR = Non-fatal errors
+
+ It is highly recommended that you enable ERROR reporting (debug 8192),
+ at least until the next stable release.
+
+ The reporting of FATAL errors (i.e. ones which crash JunkBuster) is
+ always on and cannot be disabled.
+
+ If you want to use CLF (Common Log Format), you should set "debug 512"
+ ONLY, do not enable anything else.
+
+ Multiple "debug" directives, are OK - they're logical-OR'd together.
+
+ debug 15 # same as setting the first 4 listed above
+
+ Default:
+
+ debug 1 # URLs
+ debug 4096 # Info
+ debug 8192 # Errors - *we highly recommended enabling this*
+
+ Junkbuster normally uses "multi-threading", a software technique that
+ permits it to handle many different requests simultaneously. In some
+ cases you may wish to disable this -- particularly if you're trying to
+ debug a problem. The "single-threaded" option forces Junkbuster to
+ handle requests sequentially. Default: Multi-threaded mode.
+
+ #single-threaded
+
+ "toggle" allows you to temporarily disable all Junkbuster's filtering.
+ Just set "toggle 0".
+
+ The Windows version of Junkbuster puts an icon in the system tray,
+ which also allows you to change this option. If you right-click on
+ that icon (or select the "Options" menu), one choice is "Enable".
+ Clicking on enable toggles Junkbuster on and off. This is useful if
+ you want to temporarily disable Junkbuster, e.g., to access a site
+ that requires cookies which you would otherwise have blocked. This can
+ also be toggled via a web browser at the Junkbuster internal address
+ of [44]http://i.j.b on any platform.
+
+ "toggle 1" means Junkbuster runs normally, "toggle 0" means that
+ Junkbuster becomes a non-anonymizing non-blocking proxy. Default: 1
+ (on).
+
+ toggle 1
+
+ For content filtering, i.e. the "+filter" and "+deanimate-gif"
+ actions, it is necessary that Junkbuster buffers the entire document
+ body. This can be potentially dangerous, since a server could just
+ keep sending data indefinitely and wait for your RAM to exhaust. With
+ nasty consequences.
+
+ The buffer-limit option lets you set the maximum size in Kbytes that
+ each buffer may use. When the documents buffer exceeds this size, it
+ is flushed to the client unfiltered and no further attempt to filter
+ the rest of it is made. Remember that there may multiple threads
+ running, which might require increasing the "buffer-limit" Kbytes
+ each, unless you have enabled "single-threaded" above.
+
+ buffer-limit 4069
+
+ To enable the web-based ijb.action file editor set enable-edit-actions
+ to 1, or 0 to disable. Note that you must have compiled JunkBuster
+ with support for this feature, otherwise this option has no effect.
+ This internal page can be reached at [45]http://i.j.b.
+
+ Security note: If this is enabled, anyone who can use the proxy can
+ edit the actions file, and their changes will affect all users. For
+ shared proxies, you probably want to disable this. Default: enabled.
+
+ enable-edit-actions 1
+
+ Allow JunkBuster to be toggled on and off remotely, using your web
+ browser. Set "enable-remote-toggle"to 1 to enable, and 0 to disable.
+ Note that you must have compiled JunkBuster with support for this
+ feature, otherwise this option has no effect.
+
+ Security note: If this is enabled, anyone who can use the proxy can
+ toggle it on or off (see [46]http://i.j.b), and their changes will
+ affect all users. For shared proxies, you probably want to disable
+ this. Default: enabled.
+
+ enable-remote-toggle 1
+ _________________________________________________________________
+
3.3.3. Access Control List (ACL)
-Access controls are included at the request of some ISPs and systems
-administrators, and are not usually needed by individual users. Please note the
-warnings in the FAQ that this proxy is not intended to be a substitute for a
-firewall or to encourage anyone to defer addressing basic security weaknesses.
-
-If no access settings are specified, the proxy talks to anyone that connects.
-If any access settings file are specified, then the proxy talks only to IP
-addresses permitted somewhere in this file and not denied later in this file.
-
-Summary -- if using an ACL:
-
-Client must have permission to receive service.
-
-LAST match in ACL wins.
-
-Default behavior is to deny service.
-
-The syntax for an entry in the Access Control List is:
-
- ACTION SRC_ADDR[/SRC_MASKLEN] [ DST_ADDR[/DST_MASKLEN] ]
+ Access controls are included at the request of some ISPs and systems
+ administrators, and are not usually needed by individual users. Please
+ note the warnings in the FAQ that this proxy is not intended to be a
+ substitute for a firewall or to encourage anyone to defer addressing
+ basic security weaknesses.
-
-Where the individual fields are:
-
- ACTION = "permit-access" or "deny-access"
-
- SRC_ADDR = client hostname or dotted IP address
- SRC_MASKLEN = number of bits in the subnet mask for the source
-
- DST_ADDR = server or forwarder hostname or dotted IP address
- DST_MASKLEN = number of bits in the subnet mask for the target
+ If no access settings are specified, the proxy talks to anyone that
+ connects. If any access settings file are specified, then the proxy
+ talks only to IP addresses permitted somewhere in this file and not
+ denied later in this file.
-
-The field separator (FS) is whitespace (space or tab).
-
-IMPORTANT NOTE: If the junkbuster is using a forwarder (see below) or a gateway
-for a particular destination URL, the DST_ADDR that is examined is the address
-of the forwarder or the gateway and NOT the address of the ultimate target.
-This is necessary because it may be impossible for the local Junkbuster to
-determine the address of the ultimate target (that's often what gateways are
-used for).
-
-Here are a few examples to show how the ACL features work:
-
-"localhost" is OK -- no DST_ADDR implies that ALL destination addresses are OK:
-
- permit-access localhost
+ Summary -- if using an ACL:
-
-A silly example to illustrate permitting any host on the class-C subnet with
-Junkbuster to go anywhere:
-
- permit-access www.junkbusters.com/24
+ Client must have permission to receive service.
-
-Except deny one particular IP address from using it at all:
-
- deny-access ident.junkbusters.com
+ LAST match in ACL wins.
-
-You can also specify an explicit network address and subnet mask. Explicit
-addresses do not have to be resolved to be used.
-
- permit-access 207.153.200.0/24
+ Default behavior is to deny service.
-
-A subnet mask of 0 matches anything, so the next line permits everyone.
-
- permit-access 0.0.0.0/0
+ The syntax for an entry in the Access Control List is:
-
-Note, you cannot say:
-
- permit-access .org
+ ACTION SRC_ADDR[/SRC_MASKLEN] [ DST_ADDR[/DST_MASKLEN] ]
-
-to allow all *.org domains. Every IP address listed must resolve fully.
-
-An ISP may want to provide a Junkbuster that is accessible by "the world" and
-yet restrict use of some of their private content to hosts on its internal
-network (i.e. its own subscribers). Say, for instance the ISP owns the Class-B
-IP address block 123.124.0.0 (a 16 bit netmask). This is how they could do it:
-
- permit-access 0.0.0.0/0 0.0.0.0/0 # other clients can go anywhere
- # with the following exceptions:
-
- deny-access 0.0.0.0/0 123.124.0.0/16 # block all external requests for
- # sites on the ISP's network
-
- permit 0.0.0.0/0 www.my_isp.com # except for the ISP's main
- # web site
-
- permit 123.124.0.0/16 0.0.0.0/0 # the ISP's clients can go
- # anywhere
+ Where the individual fields are:
+
+ ACTION = "permit-access" or "deny-access"
+ SRC_ADDR = client hostname or dotted IP address
+ SRC_MASKLEN = number of bits in the subnet mask for the source
+ DST_ADDR = server or forwarder hostname or dotted IP address
+ DST_MASKLEN = number of bits in the subnet mask for the target
+
+ The field separator (FS) is whitespace (space or tab).
+
+ IMPORTANT NOTE: If the junkbuster is using a forwarder (see below) or
+ a gateway for a particular destination URL, the DST_ADDR that is
+ examined is the address of the forwarder or the gateway and NOT the
+ address of the ultimate target. This is necessary because it may be
+ impossible for the local Junkbuster to determine the address of the
+ ultimate target (that's often what gateways are used for).
+
+ Here are a few examples to show how the ACL features work:
+
+ "localhost" is OK -- no DST_ADDR implies that ALL destination
+ addresses are OK:
+
+ permit-access localhost
+
+ A silly example to illustrate permitting any host on the class-C
+ subnet with Junkbuster to go anywhere:
+
+ permit-access www.junkbusters.com/24
+
+ Except deny one particular IP address from using it at all:
+
+ deny-access ident.junkbusters.com
+
+ You can also specify an explicit network address and subnet mask.
+ Explicit addresses do not have to be resolved to be used.
+
+ permit-access 207.153.200.0/24
+
+ A subnet mask of 0 matches anything, so the next line permits
+ everyone.
+
+ permit-access 0.0.0.0/0
+
+ Note, you cannot say:
+
+ permit-access .org
+
+ to allow all *.org domains. Every IP address listed must resolve
+ fully.
+
+ An ISP may want to provide a Junkbuster that is accessible by "the
+ world" and yet restrict use of some of their private content to hosts
+ on its internal network (i.e. its own subscribers). Say, for instance
+ the ISP owns the Class-B IP address block 123.124.0.0 (a 16 bit
+ netmask). This is how they could do it:
+
+ permit-access 0.0.0.0/0 0.0.0.0/0 # other clients can go anywhere
+ # with the following exceptions
+ :
+
+ deny-access 0.0.0.0/0 123.124.0.0/16 # block all external request
+ s for
+ # sites on the ISP's network
+ permit 0.0.0.0/0 www.my_isp.com # except for the ISP's main
+ # web site
+ permit 123.124.0.0/16 0.0.0.0/0 # the ISP's clients can go
+ # anywhere
+
+ Note that if some hostnames are listed with multiple IP addresses, the
+ primary value returned by DNS (via gethostbyname()) is used. Default:
+ Anyone can access the proxy.
+ _________________________________________________________________
-
-Note that if some hostnames are listed with multiple IP addresses, the primary
-value returned by DNS (via gethostbyname()) is used. Default: Anyone can access
-the proxy.
-
--------------------------------------------------------------------------------
-
3.3.4. Forwarding
-This feature allows chaining of HTTP requests via multiple proxies. It can be
-used to better protect privacy and confidentiality when accessing specific
-domains by routing requests to those domains to a special purpose filtering
-proxy such as lpwa.com. Or to use a caching proxy to speed up browsing.
-
-It can also be used in an environment with multiple networks to route requests
-via multiple gateways allowing transparent access to multiple networks without
-having to modify browser configurations.
-
-Also specified here are SOCKS proxies. Junkbuster SOCKS 4 and SOCKS 4A. The
-difference is that SOCKS 4A will resolve the target hostname using DNS on the
-SOCKS server, not our local DNS client.
-
-The syntax of each line is:
-
- forward target_domain[:port] http_proxy_host[:port]
- forward-socks4 target_domain[:port] socks_proxy_host[:port] http_proxy_host[:
-port]
- forward-socks4a target_domain[:port] socks_proxy_host[:port] http_proxy_host[:
-port]
+ This feature allows chaining of HTTP requests via multiple proxies. It
+ can be used to better protect privacy and confidentiality when
+ accessing specific domains by routing requests to those domains to a
+ special purpose filtering proxy such as lpwa.com. Or to use a caching
+ proxy to speed up browsing.
-
-If http_proxy_host is ".", then requests are not forwarded to a HTTP proxy but
-are made directly to the web servers.
-
-Lines are checked in sequence, and the last match wins.
-
-There is an implicit line equivalent to the following, which specifies that
-anything not finding a match on the list is to go out without forwarding or
-gateway protocol, like so:
-
- forward .* . # implicit
+ It can also be used in an environment with multiple networks to route
+ requests via multiple gateways allowing transparent access to multiple
+ networks without having to modify browser configurations.
+ Also specified here are SOCKS proxies. Junkbuster SOCKS 4 and SOCKS
+ 4A. The difference is that SOCKS 4A will resolve the target hostname
+ using DNS on the SOCKS server, not our local DNS client.
+
+ The syntax of each line is:
+
+ forward target_domain[:port] http_proxy_host[:port]
+ forward-socks4 target_domain[:port] socks_proxy_host[:port]
+ http_proxy_host[:port]
+ forward-socks4a target_domain[:port] socks_proxy_host[:port]
+ http_proxy_host[:port]
+
+ If http_proxy_host is ".", then requests are not forwarded to a HTTP
+ proxy but are made directly to the web servers.
+
+ Lines are checked in sequence, and the last match wins.
+
+ There is an implicit line equivalent to the following, which specifies
+ that anything not finding a match on the list is to go out without
+ forwarding or gateway protocol, like so:
+
+ forward .* . # implicit
+
+ In the following common configuration, everything goes to Lucent's
+ LPWA, except SSL on port 443 (which it doesn't handle):
+
+ forward .* lpwa.com:8000
+ forward :443 .
+
+ See the FAQ for instructions on how to automate the login procedure
+ for LPWA. Some users have reported difficulties related to LPWA's use
+ of "." as the last element of the domain, and have said that this can
+ be fixed with this:
+
+ forward lpwa. lpwa.com:8000
+
+ (NOTE: the syntax for specifying target_domain has changed since the
+ previous paragraph was written -- it will not work now. More
+ information is welcome.)
+
+ In this fictitious example, everything goes via an ISP's caching
+ proxy, except requests to that ISP:
+
+ forward .* caching.myisp.net:8000
+ forward myisp.net .
+
+ For the @home network, we're told the forwarding configuration is
+ this:
+
+ forward .* proxy:8080
+
+ Also, we're told they insist on getting cookies and JavaScript, so you
+ should add home.com to the cookie file. We consider JavaScript a
+ security risk. Java need not be enabled.
+
+ In this example direct connections are made to all "internal" domains,
+ but everything else goes through Lucent's LPWA by way of the company's
+ SOCKS gateway to the Internet.
+
+ forward-socks4 .* lpwa.com:8000 firewall.my_company.com:1080
+ forward my_company.com .
+
+ This is how you could set up a site that always uses SOCKS but no
+ forwarders:
+
+ forward-socks4a .* . firewall.my_company.com:1080
+
+ An advanced example for network administrators:
+
+ If you have links to multiple ISPs that provide various special
+ content to their subscribers, you can configure forwarding to pass
+ requests to the specific host that's connected to that ISP so that
+ everybody can see all of the content on all of the ISPs.
+
+ This is a bit tricky, but here's an example:
+
+ host-a has a PPP connection to isp-a.com. And host-b has a PPP
+ connection to isp-b.com. host-a can run a Junkbuster proxy with
+ forwarding like this:
+
+ forward .* .
+ forward isp-b.com host-b:8118
+
+ host-b can run a Junkbuster proxy with forwarding like this:
+
+ forward .* .
+ forward isp-a.com host-a:8118
+
+ Now, anyone on the Internet (including users on host-a and host-b) can
+ set their browser's proxy to either host-a or host-b and be able to
+ browse the content on isp-a or isp-b.
+
+ Here's another practical example, for University of Kent at Canterbury
+ students with a network connection in their room, who need to use the
+ University's Squid web cache.
+
+ forward *. ssbcache.ukc.ac.uk:3128 # Use the proxy, except for:
+ forward .ukc.ac.uk . # Anything on the same domain as us
+ forward * . # Host with no domain specified
+ forward 129.12.*.* . # A dotted IP on our /16 network.
+ forward 127.*.*.* . # Loopback address
+ forward localhost.localdomain . # Loopback address
+ forward www.ukc.mirror.ac.uk . # Specific host
+
+ If you intend to chain Junkbuster and squid locally, then chain as
+ browser -> squid -> junkbuster is the recommended way.
+
+ Your squid configuration could then look like this:
+
+ # Define junkbuster as parent cache
+
+ cache_peer 127.0.0.1 parent 8118 0 no-query
+
+ # Define ACL for protocol FTP
+ acl FTP proto FTP
+ # Do not forward ACL FTP to junkbuster
+ always_direct allow FTP
+ # Do not forward ACL CONNECT (https) to junkbuster
+ always_direct allow CONNECT
+ # Forward the rest to junkbuster
+ never_direct allow all
+ _________________________________________________________________
+
+3.3.5. Windows GUI Options
-In the following common configuration, everything goes to Lucent's LPWA, except
-SSL on port 443 (which it doesn't handle):
-
- forward .* lpwa.com:8000
- forward :443 .
+ Junkbuster has a number of options specific to the Windows GUI
+ interface:
-
-See the FAQ for instructions on how to automate the login procedure for LPWA.
-Some users have reported difficulties related to LPWA's use of "." as the last
-element of the domain, and have said that this can be fixed with this:
-
- forward lpwa. lpwa.com:8000
+ If "activity-animation" is set to 1, the Junkbuster icon will animate
+ when "Junkbuster" is active. To turn off, set to 0.
-
-(NOTE: the syntax for specifying target_domain has changed since the previous
-paragraph was written -- it will not work now. More information is welcome.)
-
-In this fictitious example, everything goes via an ISP's caching proxy, except
-requests to that ISP:
-
- forward .* caching.myisp.net:8000
- forward myisp.net .
+ activity-animation 1
-
-For the @home network, we're told the forwarding configuration is this:
-
- forward .* proxy:8080
+ If "log-messages" is set to 1, Junkbuster will log messages to the
+ console window:
-
-Also, we're told they insist on getting cookies and JavaScript, so you should
-add home.com to the cookie file. We consider JavaScript a security risk. Java
-need not be enabled.
-
-In this example direct connections are made to all "internal" domains, but
-everything else goes through Lucent's LPWA by way of the company's SOCKS
-gateway to the Internet.
-
- forward-socks4 .* lpwa.com:8000 firewall.my_company.com:1080
- forward my_company.com .
+ log-messages 1
-
-This is how you could set up a site that always uses SOCKS but no forwarders:
-
- forward-socks4a .* . firewall.my_company.com:1080
+ If "log-buffer-size" is set to 1, the size of the log buffer, i.e. the
+ amount of memory used for the log messages displayed in the console
+ window, will be limited to "log-max-lines" (see below).
-
-An advanced example for network administrators:
-
-If you have links to multiple ISPs that provide various special content to
-their subscribers, you can configure forwarding to pass requests to the
-specific host that's connected to that ISP so that everybody can see all of the
-content on all of the ISPs.
-
-This is a bit tricky, but here's an example:
-
-host-a has a PPP connection to isp-a.com. And host-b has a PPP connection to
-isp-b.com. host-a can run a Junkbuster proxy with forwarding like this:
-
- forward .* .
- forward isp-b.com host-b:8118
+ Warning: Setting this to 0 will result in the buffer to grow
+ infinitely and eat up all your memory!
-
-host-b can run a Junkbuster proxy with forwarding like this:
-
- forward .* .
- forward isp-a.com host-a:8118
+ log-buffer-size 1
-
-Now, anyone on the Internet (including users on host-a and host-b) can set
-their browser's proxy to either host-a or host-b and be able to browse the
-content on isp-a or isp-b.
-
-Here's another practical example, for University of Kent at Canterbury students
-with a network connection in their room, who need to use the University's Squid
-web cache.
-
- forward *. ssbcache.ukc.ac.uk:3128 # Use the proxy, except for:
- forward .ukc.ac.uk . # Anything on the same domain as us
- forward * . # Host with no domain specified
- forward 129.12.*.* . # A dotted IP on our /16 network.
- forward 127.*.*.* . # Loopback address
- forward localhost.localdomain . # Loopback address
- forward www.ukc.mirror.ac.uk . # Specific host
+ log-max-lines is the maximum number of lines held in the log buffer.
+ See above.
-
-If you intend to chain Junkbuster and squid locally, then chain as browser ->
-squid -> junkbuster is the recommended way.
-
-Your squid configuration could then look like this:
-
- # Define junkbuster as parent cache
-
- cache_peer 127.0.0.1 parent 8118 0 no-query
-
- # Define ACL for protocol FTP
- acl FTP proto FTP
-
- # Do not forward ACL FTP to junkbuster
- always_direct allow FTP
-
- # Do not forward ACL CONNECT (https) to junkbuster
- always_direct allow CONNECT
-
- # Forward the rest to junkbuster
- never_direct allow all
+ log-max-lines 200
-
--------------------------------------------------------------------------------
-
-3.3.5. Windows GUI Options
-
-Junkbuster has a number of options specific to the Windows GUI interface:
-
-If "activity-animation" is set to 1, the Junkbuster icon will animate when
-"Junkbuster" is active. To turn off, set to 0.
-
- activity-animation 1
+ If "log-highlight-messages" is set to 1, Junkbuster will highlight
+ portions of the log messages with a bold-faced font:
-
-If "log-messages" is set to 1, Junkbuster will log messages to the console
-window:
-
- log-messages 1
+ log-highlight-messages 1
-
-If "log-buffer-size" is set to 1, the size of the log buffer, i.e. the amount
-of memory used for the log messages displayed in the console window, will be
-limited to "log-max-lines" (see below).
-
-Warning: Setting this to 0 will result in the buffer to grow infinitely and eat
-up all your memory!
-
- log-buffer-size 1
+ The font used in the console window:
-
-log-max-lines is the maximum number of lines held in the log buffer. See above.
-
- log-max-lines 200
+ log-font-name Comic Sans MS
-
-If "log-highlight-messages" is set to 1, Junkbuster will highlight portions of
-the log messages with a bold-faced font:
-
- log-highlight-messages 1
+ Font size used in the console window:
-
-The font used in the console window:
-
- log-font-name Comic Sans MS
+ log-font-size 8
-
-Font size used in the console window:
-
- log-font-size 8
+ "show-on-task-bar" controls whether or not Junkbuster will appear as a
+ button on the Task bar when minimized:
-
-"show-on-task-bar" controls whether or not Junkbuster will appear as a button
-on the Task bar when minimized:
-
- show-on-task-bar 0
+ show-on-task-bar 0
-
-If "close-button-minimizes" is set to 1, the Windows close button will minimize
-Junkbuster instead of closing the program (close with the exit option on the
-File menu).
-
- close-button-minimizes 1
+ If "close-button-minimizes" is set to 1, the Windows close button will
+ minimize Junkbuster instead of closing the program (close with the
+ exit option on the File menu).
-
-The "hide-console" option is specific to the MS-Win console version of
-JunkBuster. If this option is used, Junkbuster will disconnect from and hide
-the command console.
-
- #hide-console
+ close-button-minimizes 1
+
+ The "hide-console" option is specific to the MS-Win console version of
+ JunkBuster. If this option is used, Junkbuster will disconnect from
+ and hide the command console.
+
+ #hide-console
+ _________________________________________________________________
-
--------------------------------------------------------------------------------
-
3.4. The Actions File
-The "ijb.action" file (formerly actionsfile) is used to define what actions
-Junkbuster takes, and thus determines how images, cookies and various other
-aspects of HTTP content and transactions are handled. Images can be anything
-you want, including ads, banners, or just some obnoxious image that you would
-rather not see. Cookies can be accepted or rejected, or accepted only during
-the current browser session (i.e. not written to disk). Changes to ijb.action
-should be immediately visible to Junkbuster without the need to restart.
-
-To determine which actions apply to a request, the URL of the request is
-compared to all patterns in this file. Every time it matches, the list of
-applicable actions for the URL is incrementally updated. You can trace this
-process by visiting http://i.j.b/show-url-info.
-
-The actions file can be edited with a browser by loading http://i.j.b/, and
-then select "Edit Actions".
-
-There are four types of lines in this file: comments (begin with a "#"
-character), actions, aliases and patterns, all of which are explained below, as
-well as the configuration file syntax that Junkbuster understands.
-
--------------------------------------------------------------------------------
-
+ The "ijb.action" file (formerly actionsfile) is used to define what
+ actions Junkbuster takes, and thus determines how images, cookies and
+ various other aspects of HTTP content and transactions are handled.
+ Images can be anything you want, including ads, banners, or just some
+ obnoxious image that you would rather not see. Cookies can be accepted
+ or rejected, or accepted only during the current browser session (i.e.
+ not written to disk). Changes to ijb.action should be immediately
+ visible to Junkbuster without the need to restart.
+
+ To determine which actions apply to a request, the URL of the request
+ is compared to all patterns in this file. Every time it matches, the
+ list of applicable actions for the URL is incrementally updated. You
+ can trace this process by visiting [47]http://i.j.b/show-url-info.
+
+ The actions file can be edited with a browser by loading
+ [48]http://i.j.b/, and then select "Edit Actions".
+
+ There are four types of lines in this file: comments (begin with a "#"
+ character), actions, aliases and patterns, all of which are explained
+ below, as well as the configuration file syntax that Junkbuster
+ understands.
+ _________________________________________________________________
+
3.4.1. URL Domain and Path Syntax
-Generally, a pattern has the form <domain>/<path>, where both the <domain> and
-<path> part are optional. If you only specify a domain part, the "/" can be
-left out:
-
-www.example.com - is a domain only pattern and will match any request to
-"www.example.com".
-
-www.example.com/ - means exactly the same.
-
-www.example.com/index.html - matches only the single document "/index.html" on
-"www.example.com".
-
-/index.html - matches the document "/index.html", regardless of the domain.
-
-index.html - matches nothing, since it would be interpreted as a domain name
-and there is no top-level domain called ".html".
-
-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. For example:
-
-.example.com - matches any domain that ENDS in ".example.com".
-
-www. - matches any domain that STARTS with "www".
-
-Additionally, there are wild-cards that you can use in the domain names
-themselves. They work pretty similar to shell wild-cards: "*" stands for zero
-or more arbitrary characters, "?" stands for any single character. And you can
-define character classes in square brackets and they can be freely mixed:
-
-ad*.example.com - matches "adserver.example.com", "ads.example.com", etc but
-not "sfads.example.com".
-
-*ad*.example.com - matches all of the above, and then some.
-
-.?pix.com - matches "www.ipix.com", "pictures.epix.com", "a.b.c.d.e.upix.com",
-etc.
-
-www[1-9a-ez].example.com - matches "www1.example.com", "www4.example.com",
-"wwwd.example.com", "wwwz.example.com", etc., but not "wwww.example.com".
-
-If Junkbuster was compiled with "pcre" support (default), Perl compatible
-regular expressions can be used. See the pcre/docs/ directory or "man perlre"
-(also available on http://www.perldoc.com/perl5.6/pod/perlre.html) for details.
-A brief discussion of regular expressions is in the Appendix. For instance:
-
-/.*/advert[0-9]+\.jpe?g - would match a URL from any domain, with any path that
-includes "advert" followed immediately by one or more digits, then a "." and
-ending in either "jpeg" or "jpg". So we match "example.com/ads/advert2.jpg",
-and "www.example.com/ads/banners/advert39.jpeg", but not "www.example.com/ads/
-banners/advert39.gif" (no gifs in the example pattern).
-
-Please note that matching in the path is case INSENSITIVE by default, but you
-can switch to case sensitive at any point in the pattern by using the "(?-i)"
-switch:
-
-www.example.com/(?-i)PaTtErN.* - will match only documents whose path starts
-with "PaTtErN" in exactly this capitalization.
-
--------------------------------------------------------------------------------
-
-3.4.2. Actions
-
-Actions are enabled if preceded with a "+", and disabled if preceded with a
-"-". Actions are invoked by enclosing the action name in curly braces (e.g.
-{+some_action}), followed by a list of URLs to which the action applies. There
-are three classes of actions:
-
- * Boolean (e.g. "+/-block"):
-
- {+name} # enable this action
- {-name} # disable this action
-
+ Generally, a pattern has the form <domain>/<path>, where both the
+ <domain> and <path> part are optional. If you only specify a domain
+ part, the "/" can be left out:
- * parameterized (e.g. "+/-hide-user-agent"):
+ www.example.com - is a domain only pattern and will match any request
+ to "www.example.com".
- {+name{param}} # enable action and set parameter to "param"
- {-name} # disable action
-
+ www.example.com/ - means exactly the same.
- * Multi-value (e.g. "{+/-add-header{Name: value}}", "{+/-wafer{name=value}}
- "):
+ www.example.com/index.html - matches only the single document
+ "/index.html" on "www.example.com".
- {+name{param}} # enable action and add parameter "param"
- {-name{param}} # remove the parameter "param"
- {-name} # disable this action totally
-
-
-If nothing is specified in this file, no "actions" are taken. So in this case
-JunkBuster would just be a normal, non-blocking, non-anonymizing proxy. You
-must specifically enable the privacy and blocking features you need (although
-the provided default ijb.action file will give a good starting point).
-
-Later defined actions always over-ride earlier ones. For multi-valued actions,
-the actions are applied in the order they are specified.
-
-The list of valid Junkbuster "actions" are:
-
- * Add the specified HTTP header, which is not checked for validity. You may
- specify this many times to specify many different headers:
+ /index.html - matches the document "/index.html", regardless of the
+ domain.
- +add-header{Name: value}
-
+ index.html - matches nothing, since it would be interpreted as a
+ domain name and there is no top-level domain called ".html".
- * Block this URL totally.
+ 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.
+ For example:
- +block
-
+ .example.com - matches any domain that ENDS in ".example.com".
- * De-animate all animated GIF images, i.e. reduce them to their last frame.
- This will also shrink the images considerably (in bytes, not pixels!). If
- the option "first" is given, the first frame of the animation is used as
- the replacement. If "last" is given, the last frame of the animation is
- used instead, which probably makes more sense for most banner animations,
- but also has the risk of not showing the entire last frame (if it is only a
- delta to an earlier frame).
+ www. - matches any domain that STARTS with "www".
- +deanimate-gifs{last}
- +deanimate-gifs{first}
-
+ Additionally, there are wild-cards that you can use in the domain
+ names themselves. They work pretty similar to shell wild-cards: "*"
+ stands for zero or more arbitrary characters, "?" stands for any
+ single character. And you can define character classes in square
+ brackets and they can be freely mixed:
- * "+downgrade" will downgrade HTTP/1.1 client requests to HTTP/1.0 and
- downgrade the responses as well. Use this action for servers that use HTTP/
- 1.1 protocol features that Junkbuster doesn't handle well yet. HTTP/1.1 is
- only partially implemented. Default is not to downgrade requests.
+ ad*.example.com - matches "adserver.example.com", "ads.example.com",
+ etc but not "sfads.example.com".
- +downgrade
-
+ *ad*.example.com - matches all of the above, and then some.
- * Many sites, like yahoo.com, don't just link to other sites. Instead, they
- will link to some script on their own server, giving the destination as a
- parameter, which will then redirect you to the final target. URLs resulting
- from this scheme typically look like: http://some.place/some_script?http://
- some.where-else.
+ .?pix.com - matches "www.ipix.com", "pictures.epix.com",
+ "a.b.c.d.e.upix.com", etc.
- Sometimes, there are even multiple consecutive redirects encoded in the
- URL. These redirections via scripts make your web browsing more traceable,
- since the server from which you follow such a link can see where you go to.
- Apart from that, valuable bandwidth and time is wasted, while your browser
- ask the server for one redirect after the other. Plus, it feeds the
- advertisers.
+ www[1-9a-ez].example.com - matches "www1.example.com",
+ "www4.example.com", "wwwd.example.com", "wwwz.example.com", etc., but
+ not "wwww.example.com".
- The "+fast-redirects" option enables interception of these requests by
- Junkbuster, who will cut off all but the last valid URL in the request and
- send a local redirect back to your browser without contacting the remote
- site.
+ If Junkbuster was compiled with "pcre" support (default), Perl
+ compatible regular expressions can be used. See the pcre/docs/
+ directory or "man perlre" (also available on
+ [49]http://www.perldoc.com/perl5.6/pod/perlre.html) for details. A
+ brief discussion of regular expressions is in the [50]Appendix. For
+ instance:
- +fast-redirects
-
+ /.*/advert[0-9]+\.jpe?g - would match a URL from any domain, with any
+ path that includes "advert" followed immediately by one or more
+ digits, then a "." and ending in either "jpeg" or "jpg". So we match
+ "example.com/ads/advert2.jpg", and
+ "www.example.com/ads/banners/advert39.jpeg", but not
+ "www.example.com/ads/banners/advert39.gif" (no gifs in the example
+ pattern).
- * Apply the filters in the section_header section of the re_filterfile file
- to the site(s). Re_filterfile sections are grouped according to like
- functionality.
+ Please note that matching in the path is case INSENSITIVE by default,
+ but you can switch to case sensitive at any point in the pattern by
+ using the "(?-i)" switch:
- +filter{section_header}
-
+ www.example.com/(?-i)PaTtErN.* - will match only documents whose path
+ starts with "PaTtErN" in exactly this capitalization.
+ _________________________________________________________________
- Filter sections that are pre-defined in the supplied re_filterfile include:
+3.4.2. Actions
+
+ Actions are enabled if preceded with a "+", and disabled if preceded
+ with a "-". Actions are invoked by enclosing the action name in curly
+ braces (e.g. {+some_action}), followed by a list of URLs to which the
+ action applies. There are three classes of actions:
- html-annoyances: Get rid of particularly annoying HTML abuse.
+ * Boolean (e.g. "+/-block"):
+ {+name} # enable this action
+ {-name} # disable this action
- js-annoyances: Get rid of particularly annoying JavaScript abuse
+ * parameterized (e.g. "+/-hide-user-agent"):
+ {+name{param}} # enable action and set parameter to "param"
+ {-name} # disable action
- no-poups: Kill all popups in JS and HTML
+ * Multi-value (e.g. "{+/-add-header{Name: value}}",
+ "{+/-wafer{name=value}}"):
+ {+name{param}} # enable action and add parameter "param"
+ {-name{param}} # remove the parameter "param"
+ {-name} # disable this action totally
- frameset-borders: Give frames a border
+ If nothing is specified in this file, no "actions" are taken. So in
+ this case JunkBuster would just be a normal, non-blocking,
+ non-anonymizing proxy. You must specifically enable the privacy and
+ blocking features you need (although the provided default ijb.action
+ file will give a good starting point).
+
+ Later defined actions always over-ride earlier ones. For multi-valued
+ actions, the actions are applied in the order they are specified.
+
+ The list of valid Junkbuster "actions" are:
+
+ * Add the specified HTTP header, which is not checked for validity.
+ You may specify this many times to specify many different headers:
+ +add-header{Name: value}
- webbugs: Squish WebBugs (1x1 invisible GIFs used for user tracking)
+ * Block this URL totally.
+ +block
- no-refresh: Automatic refresh sucks on auto-dialup lines
+ * De-animate all animated GIF images, i.e. reduce them to their last
+ frame. This will also shrink the images considerably (in bytes,
+ not pixels!). If the option "first" is given, the first frame of
+ the animation is used as the replacement. If "last" is given, the
+ last frame of the animation is used instead, which probably makes
+ more sense for most banner animations, but also has the risk of
+ not showing the entire last frame (if it is only a delta to an
+ earlier frame).
+ +deanimate-gifs{last}
+ +deanimate-gifs{first}
- fun: Text replacements for subversive browsing fun!
+ * "+downgrade" will downgrade HTTP/1.1 client requests to HTTP/1.0
+ and downgrade the responses as well. Use this action for servers
+ that use HTTP/1.1 protocol features that Junkbuster doesn't handle
+ well yet. HTTP/1.1 is only partially implemented. Default is not
+ to downgrade requests.
+ +downgrade
- nimda: Remove (virus) Nimda code.
+ * Many sites, like yahoo.com, don't just link to other sites.
+ Instead, they will link to some script on their own server, giving
+ the destination as a parameter, which will then redirect you to
+ the final target. URLs resulting from this scheme typically look
+ like: http://some.place/some_script?http://some.where-else.
+ Sometimes, there are even multiple consecutive redirects encoded
+ in the URL. These redirections via scripts make your web browsing
+ more traceable, since the server from which you follow such a link
+ can see where you go to. Apart from that, valuable bandwidth and
+ time is wasted, while your browser ask the server for one redirect
+ after the other. Plus, it feeds the advertisers.
+ The "+fast-redirects" option enables interception of these
+ requests by Junkbuster, who will cut off all but the last valid
+ URL in the request and send a local redirect back to your browser
+ without contacting the remote site.
+ +fast-redirects
- banners-by-size: Kill banners by size
+ * Apply the filters in the section_header section of the
+ re_filterfile file to the site(s). Re_filterfile sections are
+ grouped according to like functionality.
+ +filter{section_header}
- crude-parental: Kill all web pages that contain the words "sex" or
- "warez"
+ Filter sections that are pre-defined in the supplied re_filterfile
+ include:
- * Block any existing X-Forwarded-for header, and do not add a new one:
-
- +hide-forwarded
-
-
- * If the browser sends a "From:" header containing your e-mail address, this
- either completely removes the header ("block"), or changes it to the
- specified e-mail address.
-
- +hide-from{block}
- +hide-from{spam@sittingduck.xqq}
-
-
- * Don't send the "Referer:" (sic) header to the web site. You can block it,
- forge a URL to the same server as the request (which is preferred because
- some sites will not send images otherwise) or set it to a constant string
- of your choice.
-
- +hide-referer{block}
- +hide-referer{forge}
- +hide-referer{http://nowhere.com}
-
-
- * Alternative spelling of "+hide-referer". It has the same parameters, and
- can be freely mixed with, "+hide-referer". ("referrer" is the correct
- English spelling, however the HTTP specification has a bug - it requires it
- to be spelled "referer".)
-
- +hide-referrer{...}
-
-
- * Change the "User-Agent:" header so web servers can't tell your browser
- type. Warning! This breaks many web sites. Specify the user-agent value you
- want. Example, pretend to be using Netscape on Linux:
-
- +hide-user-agent{Mozilla (X11; I; Linux 2.0.32 i586)}
-
-
- * Treat this URL as an image. This only matters if it's also "+block"ed, in
- which case a "blocked" image can be sent rather than a HTML page. See
- "+image-blocker{}" below for the control over what is actually sent.
-
- +image
-
-
- * Decides what to do with URLs that end up tagged with "{+block +image}", e.g
- an advertizement. There are five options. "-image-blocker" will send a HTML
- "blocked" page, usually resulting in a "broken image" icon. "+image-blocker
- {logo}" will send a "JunkBuster" logo image. "+image-blocker{blank}" will
- send a 1x1 transparent GIF image. And finally, "+image-blocker{http://
- xyz.com}" will send a HTTP temporary redirect to the specified image. This
- has the advantage of the icon being being cached by the browser, which will
- speed up the display. "+image-blocker{pattern}" will send a checkboard type
- pattern, which scales better than the logo (which can get blocky if the
- browser enlarges it too much).
-
- +image-blocker{logo}
- +image-blocker{blank}
- +image-blocker{pattern}
- +image-blocker{http://i.j.b/send-banner}
-
-
- * By default (i.e. in the absence of a "+limit-connect" action), Junkbuster
- will only allow CONNECT requests to port 443, which is the standard port
- for https as a precaution.
-
- The CONNECT methods exists in HTTP to allow access to secure websites
- (https:// URLs) through proxies. It works very simply: the proxy connects
- to the server on the specified port, and then short-circuits its
- connections to the client and to the remote proxy. This can be a big
- security hole, since CONNECT-enabled proxies can be abused as TCP relays
- very easily.
-
- If you want to allow CONNECT for more ports than this, or want to forbid
- CONNECT altogether, you can specify a comma separated list of ports and
- port ranges (the latter using dashes, with the minimum defaulting to 0 and
- max to 65K):
-
- +limit-connect{443} # This is the default and need no be specified.
- +limit-connect{80,443} # Ports 80 and 443 are OK.
- +limit-connect{-3, 7, 20-100, 500-} # Port less than 3, 7, 20 to 100
- #and above 500 are OK.
-
-
- * "+no-compression" prevents the website from compressing the data. Some
- websites do this, which can be a problem for Junkbuster, since "+filter",
- "+no-popup" and "+gif-deanimate" will not work on compressed data. This
- will slow down connections to those websites, though. Default is
- "nocompression" is turned on.
-
- +nocompression
-
-
- * If the website sets cookies, "no-cookies-keep" will make sure they are
- erased when you exit and restart your web browser. This makes profiling
- cookies useless, but won't break sites which require cookies so that you
- can log in for transactions. Default: on.
-
- +no-cookies-keep
-
-
- * Prevent the website from reading cookies:
-
- +no-cookies-read
-
-
- * Prevent the website from setting cookies:
-
- +no-cookies-set
-
-
- * Filter the website through a built-in filter to disable those obnoxious
- JavaScript pop-up windows via window.open(), etc. The two alternative
- spellings are equivalent.
-
- +no-popup
- +no-popups
-
-
- * This action only applies if you are using a jarfile for saving cookies. It
- sends a cookie to every site stating that you do not accept any copyright
- on cookies sent to you, and asking them not to track you. Of course, this
- is a (relatively) unique header they could use to track you.
-
- +vanilla-wafer
-
-
- * This allows you to add an arbitrary cookie. It can be specified multiple
- times in order to add as many cookies as you like.
-
- +wafer{name=value}
-
-
-The meaning of any of the above is reversed by preceding the action with a "-",
-in place of the "+".
-
-Some examples:
-
-Turn off cookies by default, then allow a few through for specified sites:
-
- # Turn off all persistent cookies
- { +no-cookies-read }
- { +no-cookies-set }
- # Allow cookies for this browser session ONLY
- { +no-cookies-keep }
-
- # Exceptions to the above, sites that benefit from persistent cookies
- { -no-cookies-read }
- { -no-cookies-set }
- { -no-cookies-keep }
- .javasoft.com
- .sun.com
- .yahoo.com
- .msdn.microsoft.com
- .redhat.com
-
- # Alternative way of saying the same thing
- {-no-cookies-set -no-cookies-read -no-cookies-keep}
- .sourceforge.net
- .sf.net
+ html-annoyances: Get rid of particularly annoying HTML abuse.
-
-Now turn off "fast redirects", and then we allow two exceptions:
-
- # Turn them off!
- {+fast-redirects}
-
- # Reverse it for these two sites, which don't work right without it.
- {-fast-redirects}
- www.ukc.ac.uk/cgi-bin/wac\.cgi\?
- login.yahoo.com
+ js-annoyances: Get rid of particularly annoying JavaScript abuse
-
-Turn on page filtering according to rules in the defined sections of
-refilterfile, and make one exception for sourceforge:
-
- # Run everything through the filter file, using only the
- # specified sections:
- +filter{html-annoyances} +filter{js-annoyances} +filter{no-popups}\
- +filter{webbugs} +filter{nimda} +filter{banners-by-size}
-
- # Then disable filtering of code from sourceforge!
- {-filter}
- .cvs.sourceforge.net
+ no-poups: Kill all popups in JS and HTML
-
-Now some URLs that we want "blocked", ie we won't see them. Many of these use
-regular expressions that will expand to match multiple URLs:
-
- # Blocklist:
- {+block}
- /.*/(.*[-_.])?ads?[0-9]?(/|[-_.].*|\.(gif|jpe?g))
- /.*/(.*[-_.])?count(er)?(\.cgi|\.dll|\.exe|[?/])
- /.*/(ng)?adclient\.cgi
- /.*/(plain|live|rotate)[-_.]?ads?/
- /.*/(sponsor)s?[0-9]?/
- /.*/_?(plain|live)?ads?(-banners)?/
- /.*/abanners/
- /.*/ad(sdna_image|gifs?)/
- /.*/ad(server|stream|juggler)\.(cgi|pl|dll|exe)
- /.*/adbanners/
- /.*/adserver
- /.*/adstream\.cgi
- /.*/adv((er)?ts?|ertis(ing|ements?))?/
- /.*/banner_?ads/
- /.*/banners?/
- /.*/banners?\.cgi/
- /.*/cgi-bin/centralad/getimage
- /.*/images/addver\.gif
- /.*/images/marketing/.*\.(gif|jpe?g)
- /.*/popupads/
- /.*/siteads/
- /.*/sponsor.*\.gif
- /.*/sponsors?[0-9]?/
- /.*/advert[0-9]+\.jpg
- /Media/Images/Adds/
- /ad_images/
- /adimages/
- /.*/ads/
- /bannerfarm/
- /grafikk/annonse/
- /graphics/defaultAd/
- /image\.ng/AdType
- /image\.ng/transactionID
- /images/.*/.*_anim\.gif # alvin brattli
- /ip_img/.*\.(gif|jpe?g)
- /rotateads/
- /rotations/
- /worldnet/ad\.cgi
- /cgi-bin/nph-adclick.exe/
- /.*/Image/BannerAdvertising/
- /.*/ad-bin/
- /.*/adlib/server\.cgi
- /autoads/
+ frameset-borders: Give frames a border
-
--------------------------------------------------------------------------------
-
-3.4.3. Aliases
-
-Custom "actions", known to Junkbuster as "aliases", can be defined by combining
-other "actions". These can in turn be invoked just like the built-in "actions".
-Currently, an alias can contain any character except space, tab, "=", "{" or "}
-". But please use only "a"- "z", "0"-"9", "+", and "-". Alias names are not
-case sensitive, and must be defined before anything else in the ijb.actionfile
-! And there can only be one set of "aliases" defined.
-
-Now let's define a few aliases:
-
- # Useful customer aliases we can use later. These must come first!
- {{alias}}
- +no-cookies = +no-cookies-set +no-cookies-read
- -no-cookies = -no-cookies-set -no-cookies-read
- fragile =
- -block -no-cookies -filter -fast-redirects -hide-referer -no-popups
- shop = -no-cookies -filter -fast-redirects
- +imageblock = +block +image
-
- #For people who don't like to type too much: ;-)
- c0 = +no-cookies
- c1 = -no-cookies
- c2 = -no-cookies-set +no-cookies-read
- c3 = +no-cookies-set -no-cookies-read
- #... etc. Customize to your heart's content.
+ webbugs: Squish WebBugs (1x1 invisible GIFs used for user tracking)
-
-Some examples using our "shop" and "fragile" aliases from above:
-
- # These sites are very complex and require
- # minimal interference.
- {fragile}
- .office.microsoft.com
- .windowsupdate.microsoft.com
- .nytimes.com
-
- # Shopping sites - still want to block ads.
- {shop}
- .quietpc.com
- .worldpay.com # for quietpc.com
- .jungle.com
- .scan.co.uk
-
- # These shops require pop-ups
- {shop -no-popups}
- .dabs.com
- .overclockers.co.uk
+ no-refresh: Automatic refresh sucks on auto-dialup lines
-
--------------------------------------------------------------------------------
-
-3.5. The Filter File
-
-Any web page can be dynamically modified with the filter file. This
-modification can be removal, or re-writing, of any web page content, including
-tags and non-visible content. The default filter file is re_filterfile, located
-in the config directory.
-
-The included example file is divided into sections. Each section begins with
-the FILTER keyword, followed by the identifier for that section, e.g. "FILTER:
-webbugs". Each section performs a similar type of filtering, such as
-"html-annoyances".
-
-This file uses regular expressions to alter or remove any string in the target
-page. The expressions can only operate on one line at a time. Some examples
-from the included default re_filterfile:
-
-Stop web pages from displaying annoying messages in the status bar by deleting
-such references:
-
- FILTER: html-annoyances
-
- # New browser windows should be resizeable and have a location and status
- # bar. Make it so.
- #
- s/resizable="?(no|0)"?/resizable=1/ig s/noresize/yesresize/ig
- s/location="?(no|0)"?/location=1/ig s/status="?(no|0)"?/status=1/ig
- s/scrolling="?(no|0|Auto)"?/scrolling=1/ig
- s/menubar="?(no|0)"?/menubar=1/ig
-
- # The <BLINK> tag was a crime!
- #
- s*<blink>|</blink>**ig
-
- # Is this evil?
- #
- #s/framespacing="?(no|0)"?//ig
- #s/margin(height|width)=[0-9]*//gi
+ fun: Text replacements for subversive browsing fun!
-
-Just for kicks, replace any occurrence of "Microsoft" with "MicroSuck", and
-have a little fun with topical buzzwords:
-
- FILTER: fun
-
- s/microsoft(?!.com)/MicroSuck/ig
-
- # Buzzword Bingo:
- #
- s/industry-leading|cutting-edge|award-winning/<font color=red><b>BINGO!</b></
-font>/ig
+ nimda: Remove (virus) Nimda code.
-
-Kill those pesky little web-bugs:
-
- # webbugs: Squish WebBugs (1x1 invisible GIFs used for user tracking)
- FILTER: webbugs
-
- s/<img\s+[^>]*?(width|height)\s*=\s*['"]?1\D[^>]*?(width|height)\s*=\s*['"]?1
-(\D[^>]*?)?>/<!-- Squished WebBug -->/sig
+ banners-by-size: Kill banners by size
+
+ crude-parental: Kill all web pages that contain the words "sex" or
+ "warez"
+
+ * Block any existing X-Forwarded-for header, and do not add a new
+ one:
+ +hide-forwarded
+
+ * If the browser sends a "From:" header containing your e-mail
+ address, this either completely removes the header ("block"), or
+ changes it to the specified e-mail address.
+ +hide-from{block}
+ +hide-from{spam@sittingduck.xqq}
+
+ * Don't send the "Referer:" (sic) header to the web site. You can
+ block it, forge a URL to the same server as the request (which is
+ preferred because some sites will not send images otherwise) or
+ set it to a constant string of your choice.
+ +hide-referer{block}
+ +hide-referer{forge}
+ +hide-referer{http://nowhere.com}
+
+ * Alternative spelling of "+hide-referer". It has the same
+ parameters, and can be freely mixed with, "+hide-referer".
+ ("referrer" is the correct English spelling, however the HTTP
+ specification has a bug - it requires it to be spelled "referer".)
+ +hide-referrer{...}
+
+ * Change the "User-Agent:" header so web servers can't tell your
+ browser type. Warning! This breaks many web sites. Specify the
+ user-agent value you want. Example, pretend to be using Netscape
+ on Linux:
+ +hide-user-agent{Mozilla (X11; I; Linux 2.0.32 i586)}
+
+ * Treat this URL as an image. This only matters if it's also
+ "+block"ed, in which case a "blocked" image can be sent rather
+ than a HTML page. See "+image-blocker{}" below for the control
+ over what is actually sent.
+ +image
+
+ * Decides what to do with URLs that end up tagged with "{+block
+ +image}", e.g an advertizement. There are five options.
+ "-image-blocker" will send a HTML "blocked" page, usually
+ resulting in a "broken image" icon. "+image-blocker{logo}" will
+ send a "JunkBuster" logo image. "+image-blocker{blank}" will send
+ a 1x1 transparent GIF image. And finally,
+ "+image-blocker{http://xyz.com}" will send a HTTP temporary
+ redirect to the specified image. This has the advantage of the
+ icon being being cached by the browser, which will speed up the
+ display. "+image-blocker{pattern}" will send a checkboard type
+ pattern, which scales better than the logo (which can get blocky
+ if the browser enlarges it too much).
+ +image-blocker{logo}
+ +image-blocker{blank}
+ +image-blocker{pattern}
+ +image-blocker{http://i.j.b/send-banner}
+
+ * By default (i.e. in the absence of a "+limit-connect" action),
+ Junkbuster will only allow CONNECT requests to port 443, which is
+ the standard port for https as a precaution.
+ The CONNECT methods exists in HTTP to allow access to secure
+ websites (https:// URLs) through proxies. It works very simply:
+ the proxy connects to the server on the specified port, and then
+ short-circuits its connections to the client and to the remote
+ proxy. This can be a big security hole, since CONNECT-enabled
+ proxies can be abused as TCP relays very easily.
+ If you want to allow CONNECT for more ports than this, or want to
+ forbid CONNECT altogether, you can specify a comma separated list
+ of ports and port ranges (the latter using dashes, with the
+ minimum defaulting to 0 and max to 65K):
+ +limit-connect{443} # This is the default and need no be
+ specified.
+ +limit-connect{80,443} # Ports 80 and 443 are OK.
+ +limit-connect{-3, 7, 20-100, 500-} # Port less than 3, 7, 20 to
+ 100
+ #and above 500 are OK.
+
+ * "+no-compression" prevents the website from compressing the data.
+ Some websites do this, which can be a problem for Junkbuster,
+ since "+filter", "+no-popup" and "+gif-deanimate" will not work on
+ compressed data. This will slow down connections to those
+ websites, though. Default is "nocompression" is turned on.
+ +nocompression
+
+ * If the website sets cookies, "no-cookies-keep" will make sure they
+ are erased when you exit and restart your web browser. This makes
+ profiling cookies useless, but won't break sites which require
+ cookies so that you can log in for transactions. Default: on.
+ +no-cookies-keep
+
+ * Prevent the website from reading cookies:
+ +no-cookies-read
+
+ * Prevent the website from setting cookies:
+ +no-cookies-set
+
+ * Filter the website through a built-in filter to disable those
+ obnoxious JavaScript pop-up windows via window.open(), etc. The
+ two alternative spellings are equivalent.
+ +no-popup
+ +no-popups
+
+ * This action only applies if you are using a jarfile for saving
+ cookies. It sends a cookie to every site stating that you do not
+ accept any copyright on cookies sent to you, and asking them not
+ to track you. Of course, this is a (relatively) unique header they
+ could use to track you.
+ +vanilla-wafer
+
+ * This allows you to add an arbitrary cookie. It can be specified
+ multiple times in order to add as many cookies as you like.
+ +wafer{name=value}
+
+ The meaning of any of the above is reversed by preceding the action
+ with a "-", in place of the "+".
+
+ Some examples:
+
+ Turn off cookies by default, then allow a few through for specified
+ sites:
+
+ # Turn off all persistent cookies
+ { +no-cookies-read }
+ { +no-cookies-set }
+ # Allow cookies for this browser session ONLY
+ { +no-cookies-keep }
+ # Exceptions to the above, sites that benefit from persistent cookies
+ { -no-cookies-read }
+ { -no-cookies-set }
+ { -no-cookies-keep }
+ .javasoft.com
+ .sun.com
+ .yahoo.com
+ .msdn.microsoft.com
+ .redhat.com
+ # Alternative way of saying the same thing
+ {-no-cookies-set -no-cookies-read -no-cookies-keep}
+ .sourceforge.net
+ .sf.net
+
+ Now turn off "fast redirects", and then we allow two exceptions:
+
+ # Turn them off!
+ {+fast-redirects}
+
+ # Reverse it for these two sites, which don't work right without it.
+ {-fast-redirects}
+ www.ukc.ac.uk/cgi-bin/wac\.cgi\?
+ login.yahoo.com
+
+ Turn on page filtering according to rules in the defined sections of
+ refilterfile, and make one exception for sourceforge:
+
+ # Run everything through the filter file, using only the
+ # specified sections:
+ +filter{html-annoyances} +filter{js-annoyances} +filter{no-popups}\
+ +filter{webbugs} +filter{nimda} +filter{banners-by-size}
+
+ # Then disable filtering of code from sourceforge!
+ {-filter}
+ .cvs.sourceforge.net
+
+ Now some URLs that we want "blocked", ie we won't see them. Many of
+ these use regular expressions that will expand to match multiple URLs:
+
+ # Blocklist:
+ {+block}
+ /.*/(.*[-_.])?ads?[0-9]?(/|[-_.].*|\.(gif|jpe?g))
+ /.*/(.*[-_.])?count(er)?(\.cgi|\.dll|\.exe|[?/])
+ /.*/(ng)?adclient\.cgi
+ /.*/(plain|live|rotate)[-_.]?ads?/
+ /.*/(sponsor)s?[0-9]?/
+ /.*/_?(plain|live)?ads?(-banners)?/
+ /.*/abanners/
+ /.*/ad(sdna_image|gifs?)/
+ /.*/ad(server|stream|juggler)\.(cgi|pl|dll|exe)
+ /.*/adbanners/
+ /.*/adserver
+ /.*/adstream\.cgi
+ /.*/adv((er)?ts?|ertis(ing|ements?))?/
+ /.*/banner_?ads/
+ /.*/banners?/
+ /.*/banners?\.cgi/
+ /.*/cgi-bin/centralad/getimage
+ /.*/images/addver\.gif
+ /.*/images/marketing/.*\.(gif|jpe?g)
+ /.*/popupads/
+ /.*/siteads/
+ /.*/sponsor.*\.gif
+ /.*/sponsors?[0-9]?/
+ /.*/advert[0-9]+\.jpg
+ /Media/Images/Adds/
+ /ad_images/
+ /adimages/
+ /.*/ads/
+ /bannerfarm/
+ /grafikk/annonse/
+ /graphics/defaultAd/
+ /image\.ng/AdType
+ /image\.ng/transactionID
+ /images/.*/.*_anim\.gif # alvin brattli
+ /ip_img/.*\.(gif|jpe?g)
+ /rotateads/
+ /rotations/
+ /worldnet/ad\.cgi
+ /cgi-bin/nph-adclick.exe/
+ /.*/Image/BannerAdvertising/
+ /.*/ad-bin/
+ /.*/adlib/server\.cgi
+ /autoads/
+ _________________________________________________________________
+3.4.3. Aliases
--------------------------------------------------------------------------------
+ Custom "actions", known to Junkbuster as "aliases", can be defined by
+ combining other "actions". These can in turn be invoked just like the
+ built-in "actions". Currently, an alias can contain any character
+ except space, tab, "=", "{" or "}". But please use only "a"- "z",
+ "0"-"9", "+", and "-". Alias names are not case sensitive, and must be
+ defined before anything else in the ijb.actionfile ! And there can
+ only be one set of "aliases" defined.
+
+ Now let's define a few aliases:
+
+ # Useful customer aliases we can use later. These must come first!
+ {{alias}}
+ +no-cookies = +no-cookies-set +no-cookies-read
+ -no-cookies = -no-cookies-set -no-cookies-read
+ fragile = -block -no-cookies -filter -fast-redirects -hide-refere
+ r -no-popups
+ shop = -no-cookies -filter -fast-redirects
+ +imageblock = +block +image
+ #For people who don't like to type too much: ;-)
+ c0 = +no-cookies
+ c1 = -no-cookies
+ c2 = -no-cookies-set +no-cookies-read
+ c3 = +no-cookies-set -no-cookies-read
+ #... etc. Customize to your heart's content.
+
+ Some examples using our "shop" and "fragile" aliases from above:
+
+ # These sites are very complex and require
+ # minimal interference.
+ {fragile}
+ .office.microsoft.com
+ .windowsupdate.microsoft.com
+ .nytimes.com
+ # Shopping sites - still want to block ads.
+ {shop}
+ .quietpc.com
+ .worldpay.com # for quietpc.com
+ .jungle.com
+ .scan.co.uk
+ # These shops require pop-ups
+ {shop -no-popups}
+ .dabs.com
+ .overclockers.co.uk
+ _________________________________________________________________
+
+3.5. The Filter File
+ Any web page can be dynamically modified with the filter file. This
+ modification can be removal, or re-writing, of any web page content,
+ including tags and non-visible content. The default filter file is
+ re_filterfile, located in the config directory.
+
+ The included example file is divided into sections. Each section
+ begins with the FILTER keyword, followed by the identifier for that
+ section, e.g. "FILTER: webbugs". Each section performs a similar type
+ of filtering, such as "html-annoyances".
+
+ This file uses regular expressions to alter or remove any string in
+ the target page. The expressions can only operate on one line at a
+ time. Some examples from the included default re_filterfile:
+
+ Stop web pages from displaying annoying messages in the status bar by
+ deleting such references:
+
+ FILTER: html-annoyances
+ # New browser windows should be resizeable and have a location and st
+ atus
+ # bar. Make it so.
+ #
+ s/resizable="?(no|0)"?/resizable=1/ig s/noresize/yesresize/ig
+ s/location="?(no|0)"?/location=1/ig s/status="?(no|0)"?/status=1/ig
+ s/scrolling="?(no|0|Auto)"?/scrolling=1/ig
+ s/menubar="?(no|0)"?/menubar=1/ig
+ # The <BLINK> tag was a crime!
+ #
+ s*<blink>|</blink>**ig
+ # Is this evil?
+ #
+ #s/framespacing="?(no|0)"?//ig
+ #s/margin(height|width)=[0-9]*//gi
+
+ Just for kicks, replace any occurrence of "Microsoft" with
+ "MicroSuck", and have a little fun with topical buzzwords:
+
+ FILTER: fun
+ s/microsoft(?!.com)/MicroSuck/ig
+ # Buzzword Bingo:
+ #
+ s/industry-leading|cutting-edge|award-winning/<font color=red><b>BING
+ O!</b></font>/ig
+
+ Kill those pesky little web-bugs:
+
+ # webbugs: Squish WebBugs (1x1 invisible GIFs used for user tracking)
+ FILTER: webbugs
+ s/<img\s+[^>]*?(width|height)\s*=\s*['"]?1\D[^>]*?(width|height)\s*=\
+ s*['"]?1(\D[^>]*?)?>/<!-- Squished WebBug -->/sig
+ _________________________________________________________________
+
3.6. Templates
-When Junkbuster displays one of its internal pages, such as a 404 Not Found
-error page, it uses the appropriate template. On Linux, BSD, and Unix, these
-are located in /etc/junkbuster/templates by default. These may be customized,
-if desired.
-
--------------------------------------------------------------------------------
-
+ When Junkbuster displays one of its internal pages, such as a 404 Not
+ Found error page, it uses the appropriate template. On Linux, BSD, and
+ Unix, these are located in /etc/junkbuster/templates by default. These
+ may be customized, if desired.
+ _________________________________________________________________
+
4. Quickstart to Using Junkbuster
-Install package, then run and enjoy! JunkBuster is typically started by
-specifying the main configuration file to be used on the command line. Example
-Unix startup command:
-
-
- # /usr/sbin/junkbuster /etc/junkbuster/config
-
-
-
-An init script is provided for SuSE and Redhat.
-
-For for SuSE: /etc/rc.d/junkbuster start
-
-For RedHat: /etc/rc.d/init.d/junkbuster start
-
-If no configuration file is specified on the command line, Junkbuster will look
-for a file named config in the current directory. Except on Win32 where it will
-try config.txt. If no file is specified on the command line and no default
-configuration file can be found, Junkbuster will fail to start.
-
-Be sure your browser is set to use the proxy which is by default at localhost,
-port 8118. With Netscape (and Mozilla), this can be set under Edit ->
-Preferences -> Advanced -> Proxies -> HTTP Proxy. For Internet Explorer: Tools
-> Internet Properties -> Connections -> LAN Setting. Then, check "Use Proxy"
-and fill in the appropriate info (Address: localhost, Port: 8118). Include if
-HTTPS proxy support too.
-
-The included default configuration files should give a reasonable starting
-point, though may be somewhat aggressive in blocking junk. You will probably
-want to keep an eye out for sites that require persistent cookies, and add
-these to ijb.action as needed. By default, most of these will be accepted only
-during the current browser session, until you add them to the configuration. If
-you want the browser to handle this instead, you will need to edit ijb.action
-and disable this feature. If you use more than one browser, it would make more
-sense to let Junkbuster handle this. In which case, the browser(s) should be
-set to accept all cookies.
-
-If a particular site shows problems loading properly, try adding it to the
-{fragile} section of ijb.action. This will turn off most actions for this site.
-
-Junkbuster is HTTP/1.1 compliant, but not all 1.1 features are as yet
-implemented. If browsers that support HTTP/1.1 (like Mozilla or recent versions
-of I.E.) experience problems, you might try to force HTTP/1.0 compatibility.
-For Mozilla, look under Edit -> Preferences -> Debug -> Networking. Or set the
-"+downgrade" config option in ijb.action.
-
-After running Junkbuster for a while, you can start to fine tune the
-configuration to suit your personal, or site, preferences and requirements.
-There are many, many aspects that can be customized. "Actions" (as specified in
-ijb.action) can be adjusted by pointing your browser to http://i.j.b/, and then
-follow the link to "edit the actions list". (This is an internal page and does
-not require Internet access.)
-
-In fact, various aspects of Junkbuster configuration can be viewed from this
-page, including current configuration parameters, source code version numbers,
-the browser's request headers, and "actions" that apply to a given URL. In
-addition to the ijb.action file editor mentioned above, Junkbuster can also be
-turned "on" and "off" from this page.
-
-If you encounter problems, please verify it is a Junkbuster bug, by disabling
-Junkbuster, and then trying the same page. Also, try another browser if
-possible to eliminate browser or site problems. Before reporting it as a bug,
-see if there is not a configuration option that is enabled that is causing the
-page not to load. You can then add an exception for that page or site. If a
-bug, please report it to the developers (see below).
-
--------------------------------------------------------------------------------
-
+ Install package, then run and enjoy! JunkBuster is typically started
+ by specifying the main configuration file to be used on the command
+ line. Example Unix startup command:
+
+
+ # /usr/sbin/junkbuster /etc/junkbuster/config
+
+
+ An init script is provided for SuSE and Redhat.
+
+ For for SuSE: /etc/rc.d/junkbuster start
+
+ For RedHat: /etc/rc.d/init.d/junkbuster start
+
+ If no configuration file is specified on the command line, Junkbuster
+ will look for a file named config in the current directory. Except on
+ Win32 where it will try config.txt. If no file is specified on the
+ command line and no default configuration file can be found,
+ Junkbuster will fail to start.
+
+ Be sure your browser is set to use the proxy which is by default at
+ localhost, port 8118. With Netscape (and Mozilla), this can be set
+ under Edit -> Preferences -> Advanced -> Proxies -> HTTP Proxy. For
+ Internet Explorer: Tools > Internet Properties -> Connections -> LAN
+ Setting. Then, check "Use Proxy" and fill in the appropriate info
+ (Address: localhost, Port: 8118). Include if HTTPS proxy support too.
+
+ The included default configuration files should give a reasonable
+ starting point, though may be somewhat aggressive in blocking junk.
+ You will probably want to keep an eye out for sites that require
+ persistent cookies, and add these to ijb.action as needed. By default,
+ most of these will be accepted only during the current browser
+ session, until you add them to the configuration. If you want the
+ browser to handle this instead, you will need to edit ijb.action and
+ disable this feature. If you use more than one browser, it would make
+ more sense to let Junkbuster handle this. In which case, the
+ browser(s) should be set to accept all cookies.
+
+ If a particular site shows problems loading properly, try adding it to
+ the {fragile} section of ijb.action. This will turn off most actions
+ for this site.
+
+ Junkbuster is HTTP/1.1 compliant, but not all 1.1 features are as yet
+ implemented. If browsers that support HTTP/1.1 (like Mozilla or recent
+ versions of I.E.) experience problems, you might try to force HTTP/1.0
+ compatibility. For Mozilla, look under Edit -> Preferences -> Debug ->
+ Networking. Or set the "+downgrade" config option in ijb.action.
+
+ After running Junkbuster for a while, you can start to fine tune the
+ configuration to suit your personal, or site, preferences and
+ requirements. There are many, many aspects that can be customized.
+ "Actions" (as specified in ijb.action) can be adjusted by pointing
+ your browser to [51]http://i.j.b/, and then follow the link to "edit
+ the actions list". (This is an internal page and does not require
+ Internet access.)
+
+ In fact, various aspects of Junkbuster configuration can be viewed
+ from this page, including current configuration parameters, source
+ code version numbers, the browser's request headers, and "actions"
+ that apply to a given URL. In addition to the ijb.action file editor
+ mentioned above, Junkbuster can also be turned "on" and "off" from
+ this page.
+
+ If you encounter problems, please verify it is a Junkbuster bug, by
+ disabling Junkbuster, and then trying the same page. Also, try another
+ browser if possible to eliminate browser or site problems. Before
+ reporting it as a bug, see if there is not a configuration option that
+ is enabled that is causing the page not to load. You can then add an
+ exception for that page or site. If a bug, please report it to the
+ developers (see below).
+ _________________________________________________________________
+
4.1. Command Line Options
-JunkBuster may be invoked with the following command-line options:
-
- * --version
-
- Print version info and exit, Unix only.
+ JunkBuster may be invoked with the following command-line options:
+
+ * --version
+ Print version info and exit, Unix only.
+ * --help
+ Print a short usage info and exit, Unix only.
+ * --no-daemon
+ Don't become a daemon, i.e. don't fork and become process group
+ leader, don't detach from controlling tty. Unix only.
+ * --pidfile FILE
+ On startup, write the process ID to FILE. Delete the FILE on exit.
+ Failiure to create or delete the FILE is non-fatal. If no FILE
+ option is given, no PID file will be used. Unix only.
+ * --user USER[.GROUP]
+ After (optionally) writing the PID file, assume the user ID of
+ USER, and if included the GID of GROUP. Exit if the privileges are
+ not sufficient to do so. Unix only.
+ * configfile
+ If no configfile is included on the command line, JunkBuster will
+ look for a file named "config" in the current directory (except on
+ Win32 where it will look for "config.txt" instead). Specify full
+ path to avoid confusion.
+ _________________________________________________________________
- * --help
-
- Print a short usage info and exit, Unix only.
-
- * --no-daemon
-
- Don't become a daemon, i.e. don't fork and become process group leader,
- don't detach from controlling tty. Unix only.
-
- * --pidfile FILE
-
- On startup, write the process ID to FILE. Delete the FILE on exit. Failiure
- to create or delete the FILE is non-fatal. If no FILE option is given, no
- PID file will be used. Unix only.
-
- * --user USER[.GROUP]
-
- After (optionally) writing the PID file, assume the user ID of USER, and if
- included the GID of GROUP. Exit if the privileges are not sufficient to do
- so. Unix only.
-
- * configfile
-
- If no configfile is included on the command line, JunkBuster will look for
- a file named "config" in the current directory (except on Win32 where it
- will look for "config.txt" instead). Specify full path to avoid confusion.
-
--------------------------------------------------------------------------------
-
5. Contacting the Developers, Bug Reporting and Feature Requests
-We value your feedback. However, to provide you with the best support, please
-note:
-
- * Use the Sourceforge support forum to get help.
-
- * Submit bugs only thru our Sourceforge bug forum. Make sure that the bug has
- not already been submitted. Please try to verify that it is a Junkbuster
- bug, and not a browser or site bug first. If you are using your own custom
- configuration, please try the stock configs to see if the problem is a
- configuration related bug. And if not using the latest development
- snapshot, please try the latest one. Or even better, CVS sources.
+ We value your feedback. However, to provide you with the best support,
+ please note:
+
+ * Use the [52]Sourceforge support forum to get help.
+ * Submit bugs only thru our [53]Sourceforge bug forum. Make sure
+ that the bug has not already been submitted. Please try to verify
+ that it is a Junkbuster bug, and not a browser or site bug first.
+ If you are using your own custom configuration, please try the
+ stock configs to see if the problem is a configuration related
+ bug. And if not using the latest development snapshot, please try
+ the latest one. Or even better, CVS sources.
+ * Submit feature requests only thru our [54]Sourceforge feature
+ request forum.
+
+ For any other issues, feel free to use the [55]mailing lists.
- * Submit feature requests only thru our Sourceforge feature request forum.
+ Anyone interested in actively participating in development and related
+ discussions can join the appropriate mailing list [56]here. Archives
+ are available here too.
+ _________________________________________________________________
-
-
-For any other issues, feel free to use the mailing lists.
-
-Anyone interested in actively participating in development and related
-discussions can join the appropriate mailing list here. Archives are available
-here too.
-
--------------------------------------------------------------------------------
-
6. Copyright and History
6.1. License
-Internet Junkbuster is free software; you can redistribute it and/or modify it
-under the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2 of the License, or (at your option) any
-later version.
-
-This program is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-PARTICULAR PURPOSE. See the GNU General Public License for more details, which
-is available from the Free Software Foundation, Inc, 59 Temple Place - Suite
-330, Boston, MA 02111-1307, USA.
-
--------------------------------------------------------------------------------
-
+ Internet Junkbuster is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details, which is available from
+ [57]the Free Software Foundation, Inc, 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+ _________________________________________________________________
+
6.2. History
-Junkbuster was originally written by Anonymous Coders and Junkbuster's
-Corporation, and was released as free open-source software under the GNU GPL.
-Stefan Waldherr made many improvements, and started the SourceForge project to
-rekindle development. There are now several active developers contributing. The
-last stable release was v2.0.2, which has now grown whiskers ;-).
-
--------------------------------------------------------------------------------
-
+ Junkbuster was originally written by Anonymous Coders and
+ [58]Junkbuster's Corporation, and was released as free open-source
+ software under the GNU GPL. [59]Stefan Waldherr made many
+ improvements, and started the [60]SourceForge project to rekindle
+ development. There are now several active developers contributing. The
+ last stable release was v2.0.2, which has now grown whiskers ;-).
+ _________________________________________________________________
+
7. See also
- http://sourceforge.net/projects/ijbswa
-
- http://ijbswa.sourceforge.net/
-
- http://i.j.b/
-
- http://www.junkbusters.com/ht/en/cookies.html
-
- http://www.waldherr.org/junkbuster/
-
- http://privacy.net/analyze/
-
- http://www.squid-cache.org/
-
-
-
--------------------------------------------------------------------------------
-
+ [61]http://sourceforge.net/projects/ijbswa
+
+ [62]http://ijbswa.sourceforge.net/
+
+ [63]http://i.j.b/
+
+ [64]http://www.junkbusters.com/ht/en/cookies.html
+
+ [65]http://www.waldherr.org/junkbuster/
+
+ [66]http://privacy.net/analyze/
+
+ [67]http://www.squid-cache.org/
+ _________________________________________________________________
+
8. Appendix
8.1. Regular Expressions
-Junkbuster can use "regular expressions" in various config files. Assuming
-support for "pcre" (Perl Compatible Regular Expressions) is compiled in, which
-is the default. Such configuration directives do not require regular
-expressions, but they can be used to increase flexibility by matching a pattern
-with wild-cards against URLs.
-
-If you are reading this, you probably don't understand what "regular
-expressions" are, or what they can do. So this will be a very brief
-introduction only. A full explanation would require a book ;-)
-
-"Regular expressions" is a way of matching one character expression against
-another to see if it matches or not. One of the "expressions" is a literal
-string of readable characters (letter, numbers, etc), and the other is a
-complex string of literal characters combined with wild-cards, and other
-special characters, called meta-characters. The "meta-characters" have special
-meanings and are used to build the complex pattern to be matched against. Perl
-Compatible Regular Expressions is an enhanced form of the regular expression
-language with backward compatibility.
-
-To make a simple analogy, we do something similar when we use wild-card
-characters when listing files with the dir command in DOS. *.* matches all
-filenames. The "special" character here is the asterisk which matches any and
-all characters. We can be more specific and use ? to match just individual
-characters. So "dir file?.text" would match "file1.txt", "file2.txt", etc. We
-are pattern matching, using a similar technique to "regular expressions"!
-
-Regular expressions do essentially the same thing, but are much, much more
-powerful. There are many more "special characters" and ways of building complex
-patterns however. Let's look at a few of the common ones, and then some
-examples:
-
-. - Matches any single character, e.g. "a", "A", "4", ":", or "@".
-
-? - The preceding character or expression is matched ZERO or ONE times. Either/
-or.
-
-+ - The preceding character or expression is matched ONE or MORE times.
-
-* - The preceding character or expression is matched ZERO or MORE times.
-
-\ - The "escape" character denotes that the following character should be taken
-literally. This is used where one of the special characters (e.g. ".") needs to
-be taken literally and not as a special meta-character.
-
-[] - Characters enclosed in brackets will be matched if any of the enclosed
-characters are encountered.
-
-() - parentheses are used to group a sub-expression, or multiple
-sub-expressions.
-
-| - The "bar" character works like an "or" conditional statement. A match is
-successful if the sub-expression on either side of "|" matches.
-
-s/string1/string2/g - This is used to rewrite strings of text. "string1" is
-replaced by "string2" in this example.
-
-These are just some of the ones you are likely to use when matching URLs with
-Junkbuster, and is a long way from a definitive list. This is enough to get us
-started with a few simple examples which may be more illuminating:
-
-/.*/banners/.* - A simple example that uses the common combination of "." and "
-*" to denote any character, zero or more times. In other words, any string at
-all. So we start with a literal forward slash, then our regular expression
-pattern (".*") another literal forward slash, the string "banners", another
-forward slash, and lastly another ".*". We are building a directory path here.
-This will match any file with the path that has a directory named "banners" in
-it. The ".*" matches any characters, and this could conceivably be more forward
-slashes, so it might expand into a much longer looking path. For example, this
-could match: "/eye/hate/spammers/banners/annoy_me_please.gif", or just "/
-banners/annoying.html", or almost an infinite number of other possible
-combinations, just so it has "banners" in the path somewhere.
-
-A now something a little more complex:
-
-/.*/adv((er)?ts?|ertis(ing|ements?))?/ - We have several literal forward
-slashes again ("/"), so we are building another expression that is a file path
-statement. We have another ".*", so we are matching against any conceivable
-sub-path, just so it matches our expression. The only true literal that must
-match our pattern is adv, together with the forward slashes. What comes after
-the "adv" string is the interesting part.
-
-Remember the "?" means the preceding expression (either a literal character or
-anything grouped with "(...)" in this case) can exist or not, since this means
-either zero or one match. So "((er)?ts?|ertis(ing|ements?))" is optional, as
-are the individual sub-expressions: "(er)", "(ing|ements?)", and the "s". The "
-|" means "or". We have two of those. For instance, "(ing|ements?)", can expand
-to match either "ing" OR "ements?". What is being done here, is an attempt at
-matching as many variations of "advertisement", and similar, as possible. So
-this would expand to match just "adv", or "advert", or "adverts", or
-"advertising", or "advertisement", or "advertisements". You get the idea. But
-it would not match "advertizements" (with a "z"). We could fix that by changing
-our regular expression to: "/.*/adv((er)?ts?|erti(s|z)(ing|ements?))?/", which
-would then match either spelling.
-
-/.*/advert[0-9]+\.(gif|jpe?g) - Again another path statement with forward
-slashes. Anything in the square brackets "[]" can be matched. This is using
-"0-9" as a shorthand expression to mean any digit one through nine. It is the
-same as saying "0123456789". So any digit matches. The "+" means one or more of
-the preceding expression must be included. The preceding expression here is
-what is in the square brackets -- in this case, any digit one through nine.
-Then, at the end, we have a grouping: "(gif|jpe?g)". This includes a "|", so
-this needs to match the expression on either side of that bar character also. A
-simple "gif" on one side, and the other side will in turn match either "jpeg"
-or "jpg", since the "?" means the letter "e" is optional and can be matched
-once or not at all. So we are building an expression here to match image GIF or
-JPEG type image file. It must include the literal string "advert", then one or
-more digits, and a "." (which is now a literal, and not a special character,
-since it is escaped with "\"), and lastly either "gif", or "jpeg", or "jpg".
-Some possible matches would include: "//advert1.jpg", "/nasty/ads/
-advert1234.gif", "/banners/from/hell/advert99.jpg". It would not match
-"advert1.gif" (no leading slash), or "/adverts232.jpg" (the expression does not
-include an "s"), or "/advert1.jsp" ("jsp" is not in the expression anywhere).
-
-s/microsoft(?!.com)/MicroSuck/i - This is a substitution. "MicroSuck" will
-replace any occurrence of "microsoft". The "i" at the end of the expression
-means ignore case. The "(?!.com)" means the match should fail if "microsoft" is
-followed by ".com". In other words, this acts like a "NOT" modifier. In case
-this is a hyperlink, we don't want to break it ;-).
-
-We are barely scratching the surface of regular expressions here so that you
-can understand the default Junkbuster configuration files, and maybe use this
-knowledge to customize your own installation. There is much, much more that can
-be done with regular expressions. Now that you know enough to get started, you
-can learn more on your own :/
-
-More reading on Perl Compatible Regular expressions: http://www.perldoc.com/
-perl5.6/pod/perlre.html
-
--------------------------------------------------------------------------------
-
+ Junkbuster can use "regular expressions" in various config files.
+ Assuming support for "pcre" (Perl Compatible Regular Expressions) is
+ compiled in, which is the default. Such configuration directives do
+ not require regular expressions, but they can be used to increase
+ flexibility by matching a pattern with wild-cards against URLs.
+
+ If you are reading this, you probably don't understand what "regular
+ expressions" are, or what they can do. So this will be a very brief
+ introduction only. A full explanation would require a book ;-)
+
+ "Regular expressions" is a way of matching one character expression
+ against another to see if it matches or not. One of the "expressions"
+ is a literal string of readable characters (letter, numbers, etc), and
+ the other is a complex string of literal characters combined with
+ wild-cards, and other special characters, called meta-characters. The
+ "meta-characters" have special meanings and are used to build the
+ complex pattern to be matched against. Perl Compatible Regular
+ Expressions is an enhanced form of the regular expression language
+ with backward compatibility.
+
+ To make a simple analogy, we do something similar when we use
+ wild-card characters when listing files with the dir command in DOS.
+ *.* matches all filenames. The "special" character here is the
+ asterisk which matches any and all characters. We can be more specific
+ and use ? to match just individual characters. So "dir file?.text"
+ would match "file1.txt", "file2.txt", etc. We are pattern matching,
+ using a similar technique to "regular expressions"!
+
+ Regular expressions do essentially the same thing, but are much, much
+ more powerful. There are many more "special characters" and ways of
+ building complex patterns however. Let's look at a few of the common
+ ones, and then some examples:
+
+ . - Matches any single character, e.g. "a", "A", "4", ":", or "@".
+
+ ? - The preceding character or expression is matched ZERO or ONE
+ times. Either/or.
+
+ + - The preceding character or expression is matched ONE or MORE
+ times.
+
+ * - The preceding character or expression is matched ZERO or MORE
+ times.
+
+ \ - The "escape" character denotes that the following character should
+ be taken literally. This is used where one of the special characters
+ (e.g. ".") needs to be taken literally and not as a special
+ meta-character.
+
+ [] - Characters enclosed in brackets will be matched if any of the
+ enclosed characters are encountered.
+
+ () - parentheses are used to group a sub-expression, or multiple
+ sub-expressions.
+
+ | - The "bar" character works like an "or" conditional statement. A
+ match is successful if the sub-expression on either side of "|"
+ matches.
+
+ s/string1/string2/g - This is used to rewrite strings of text.
+ "string1" is replaced by "string2" in this example.
+
+ These are just some of the ones you are likely to use when matching
+ URLs with Junkbuster, and is a long way from a definitive list. This
+ is enough to get us started with a few simple examples which may be
+ more illuminating:
+
+ /.*/banners/.* - A simple example that uses the common combination of
+ "." and "*" to denote any character, zero or more times. In other
+ words, any string at all. So we start with a literal forward slash,
+ then our regular expression pattern (".*") another literal forward
+ slash, the string "banners", another forward slash, and lastly another
+ ".*". We are building a directory path here. This will match any file
+ with the path that has a directory named "banners" in it. The ".*"
+ matches any characters, and this could conceivably be more forward
+ slashes, so it might expand into a much longer looking path. For
+ example, this could match:
+ "/eye/hate/spammers/banners/annoy_me_please.gif", or just
+ "/banners/annoying.html", or almost an infinite number of other
+ possible combinations, just so it has "banners" in the path somewhere.
+
+ A now something a little more complex:
+
+ /.*/adv((er)?ts?|ertis(ing|ements?))?/ - We have several literal
+ forward slashes again ("/"), so we are building another expression
+ that is a file path statement. We have another ".*", so we are
+ matching against any conceivable sub-path, just so it matches our
+ expression. The only true literal that must match our pattern is adv,
+ together with the forward slashes. What comes after the "adv" string
+ is the interesting part.
+
+ Remember the "?" means the preceding expression (either a literal
+ character or anything grouped with "(...)" in this case) can exist or
+ not, since this means either zero or one match. So
+ "((er)?ts?|ertis(ing|ements?))" is optional, as are the individual
+ sub-expressions: "(er)", "(ing|ements?)", and the "s". The "|" means
+ "or". We have two of those. For instance, "(ing|ements?)", can expand
+ to match either "ing" OR "ements?". What is being done here, is an
+ attempt at matching as many variations of "advertisement", and
+ similar, as possible. So this would expand to match just "adv", or
+ "advert", or "adverts", or "advertising", or "advertisement", or
+ "advertisements". You get the idea. But it would not match
+ "advertizements" (with a "z"). We could fix that by changing our
+ regular expression to: "/.*/adv((er)?ts?|erti(s|z)(ing|ements?))?/",
+ which would then match either spelling.
+
+ /.*/advert[0-9]+\.(gif|jpe?g) - Again another path statement with
+ forward slashes. Anything in the square brackets "[]" can be matched.
+ This is using "0-9" as a shorthand expression to mean any digit one
+ through nine. It is the same as saying "0123456789". So any digit
+ matches. The "+" means one or more of the preceding expression must be
+ included. The preceding expression here is what is in the square
+ brackets -- in this case, any digit one through nine. Then, at the
+ end, we have a grouping: "(gif|jpe?g)". This includes a "|", so this
+ needs to match the expression on either side of that bar character
+ also. A simple "gif" on one side, and the other side will in turn
+ match either "jpeg" or "jpg", since the "?" means the letter "e" is
+ optional and can be matched once or not at all. So we are building an
+ expression here to match image GIF or JPEG type image file. It must
+ include the literal string "advert", then one or more digits, and a
+ "." (which is now a literal, and not a special character, since it is
+ escaped with "\"), and lastly either "gif", or "jpeg", or "jpg". Some
+ possible matches would include: "//advert1.jpg",
+ "/nasty/ads/advert1234.gif", "/banners/from/hell/advert99.jpg". It
+ would not match "advert1.gif" (no leading slash), or "/adverts232.jpg"
+ (the expression does not include an "s"), or "/advert1.jsp" ("jsp" is
+ not in the expression anywhere).
+
+ s/microsoft(?!.com)/MicroSuck/i - This is a substitution. "MicroSuck"
+ will replace any occurrence of "microsoft". The "i" at the end of the
+ expression means ignore case. The "(?!.com)" means the match should
+ fail if "microsoft" is followed by ".com". In other words, this acts
+ like a "NOT" modifier. In case this is a hyperlink, we don't want to
+ break it ;-).
+
+ We are barely scratching the surface of regular expressions here so
+ that you can understand the default Junkbuster configuration files,
+ and maybe use this knowledge to customize your own installation. There
+ is much, much more that can be done with regular expressions. Now that
+ you know enough to get started, you can learn more on your own :/
+
+ More reading on Perl Compatible Regular expressions:
+ [68]http://www.perldoc.com/perl5.6/pod/perlre.html
+ _________________________________________________________________
+
8.2. JunkBuster's Internal Pages
-Since JunkBuster proxies each requested web page, it is easy for JunkBuster to
-trap certain URLs. In this way, we can talk directly to JunkBuster, and see how
-it is configured, see how our rules are being applied, change these rules and
-other configuration options, and even turn JunkBuster's filtering off, all with
-a web browser.
-
-The URLs listed below are the special ones that allow direct access to
-JunkBuster. Of course, JunkBuster must be running to access these. If not, you
-will get a friendly error message.
-
- * Junkbuster main page:
-
- http://ijbswa.sourceforge.net/config/
-
- Alternately, this may be reached at http://i.j.b/, but this variation may
- not work as reliably as the above in some configurations.
+ Since JunkBuster proxies each requested web page, it is easy for
+ JunkBuster to trap certain URLs. In this way, we can talk directly to
+ JunkBuster, and see how it is configured, see how our rules are being
+ applied, change these rules and other configuration options, and even
+ turn JunkBuster's filtering off, all with a web browser.
- * Show information about the current configuration:
+ The URLs listed below are the special ones that allow direct access to
+ JunkBuster. Of course, JunkBuster must be running to access these. If
+ not, you will get a friendly error message.
- http://ijbswa.sourceforge.net/config/show-status
+ * Junkbuster main page:
- * Show the source code version numbers:
-
- http://ijbswa.sourceforge.net/config/show-version
+ [69]http://ijbswa.sourceforge.net/config/
+ Alternately, this may be reached at [70]http://i.j.b/, but this
+ variation may not work as reliably as the above in some
+ configurations.
+ * Show information about the current configuration:
- * Show the client's request headers:
-
- http://ijbswa.sourceforge.net/config/show-request
+ [71]http://ijbswa.sourceforge.net/config/show-status
+ * Show the source code version numbers:
- * Show which actions apply to a URL and why:
-
- http://ijbswa.sourceforge.net/config/show-url-info
+ [72]http://ijbswa.sourceforge.net/config/show-version
+ * Show the client's request headers:
- * Toggle JunkBuster on or off:
-
- http://ijbswa.sourceforge.net/config/toggle
+ [73]http://ijbswa.sourceforge.net/config/show-request
+ * Show which actions apply to a URL and why:
- Short cuts. Turn off, then on:
-
- http://ijbswa.sourceforge.net/config/toggle?set=disable
+ [74]http://ijbswa.sourceforge.net/config/show-url-info
+ * Toggle JunkBuster on or off:
- http://ijbswa.sourceforge.net/config/toggle?set=enable
+ [75]http://ijbswa.sourceforge.net/config/toggle
+ Short cuts. Turn off, then on:
- * Edit the actions list file:
-
- http://ijbswa.sourceforge.net/config/edit-actions
+ [76]http://ijbswa.sourceforge.net/config/toggle?set=disable
-These may be bookmarked for quick reference.
-
+ [77]http://ijbswa.sourceforge.net/config/toggle?set=enable
+ * Edit the actions list file:
+
+ [78]http://ijbswa.sourceforge.net/config/edit-actions
+
+ These may be bookmarked for quick reference.
+
+References
+
+ Visible links
+ 1. http://ijbswa.sourceforge.net/user-manual/
+ 2. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#INTRODUCTION
+ 3. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN27
+ 4. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#INSTALLATION
+ 5. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#INSTALLATION-SOURCE
+ 6. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#INSTALLATION-RH
+ 7. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#INSTALLATION-SUSE
+ 8. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#INSTALLATION-OS2
+ 9. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#INSTALLATION-WIN
+ 10. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#INSTALLATION-OTHER
+ 11. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#CONFIGURATION
+ 12. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN146
+ 13. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN163
+ 14. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN194
+ 15. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN227
+ 16. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN318
+ 17. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN455
+ 18. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN543
+ 19. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN652
+ 20. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#ACTIONSFILE
+ 21. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN749
+ 22. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN823
+ 23. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN1134
+ 24. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#FILTERFILE
+ 25. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN1193
+ 26. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#QUICKSTART
+ 27. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN1248
+ 28. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#CONTACT
+ 29. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#COPYRIGHT
+ 30. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN1307
+ 31. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN1313
+ 32. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#SEEALSO
+ 33. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#APPENDIX
+ 34. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#REGEX
+ 35. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN1497
+ 36. http://i.j.b/
+ 37. http://sourceforge.net/projects/ijbswa/
+ 38. http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/ijbswa/current/
+ 39. http://www.gnu.org/
+ 40. http://i.j.b/
+ 41. http://ijbswa.sourceforge.net/config/
+ 42. http://i.j.b/
+ 43. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#ACTIONSFILE
+ 44. http://i.j.b/
+ 45. http://i.j.b/
+ 46. http://i.j.b/
+ 47. http://i.j.b/show-url-info
+ 48. http://i.j.b/
+ 49. http://www.perldoc.com/perl5.6/pod/perlre.html
+ 50. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#REGEX
+ 51. http://i.j.b/
+ 52. http://sourceforge.net/tracker/?group_id=11118&atid=211118
+ 53. http://sourceforge.net/tracker/?group_id=11118&atid=111118
+ 54. http://sourceforge.net/tracker/?atid=361118&group_id=11118&func=browse
+ 55. http://sourceforge.net/mail/?group_id=11118
+ 56. http://sourceforge.net/mail/?group_id=11118
+ 57. http://www.gnu.org/copyleft/gpl.html
+ 58. http://www.junkbusters.com/ht/en/ijbfaq.html
+ 59. http://www.waldherr.org/junkbuster/
+ 60. http://sourceforge.net/projects/ijbswa/
+ 61. http://sourceforge.net/projects/ijbswa
+ 62. http://ijbswa.sourceforge.net/
+ 63. http://i.j.b/
+ 64. http://www.junkbusters.com/ht/en/cookies.html
+ 65. http://www.waldherr.org/junkbuster/
+ 66. http://privacy.net/analyze/
+ 67. http://www.squid-cache.org/
+ 68. http://www.perldoc.com/perl5.6/pod/perlre.html
+ 69. http://ijbswa.sourceforge.net/config/
+ 70. http://i.j.b/
+ 71. http://ijbswa.sourceforge.net/config/show-status
+ 72. http://ijbswa.sourceforge.net/config/show-version
+ 73. http://ijbswa.sourceforge.net/config/show-request
+ 74. http://ijbswa.sourceforge.net/config/show-url-info
+ 75. http://ijbswa.sourceforge.net/config/toggle
+ 76. http://ijbswa.sourceforge.net/config/toggle?set=disable
+ 77. http://ijbswa.sourceforge.net/config/toggle?set=enable
+ 78. http://ijbswa.sourceforge.net/config/edit-actions
+
+ Hidden links:
+ 79. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN1369
+ 80. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN1377
+ 81. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN1380
+ 82. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN1383
+ 83. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN1386
+ 84. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN1391
+ 85. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN1394
+ 86. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN1397
+ 87. file://localhost/home/swa/sf/current-org/doc/source/tmp.html#AEN1403
projects / privoxy.git / blobdiff