- Enabled filtering banners by size rather than URL

  by adding patterns that replace all standard banner
  sizes with the "Junkbuster" gif to the re_filterfile

- Enabled filtering WebBugs by providing a pattern
  which kills all 1x1 images

- Added support for PCRE_UNGREEDY behaviour to pcrs,
  which is selected by the (nonstandard and therefore
  capital) letter 'U' in the option string.
  It causes the quantifiers to be ungreedy by default.
  Appending a ? turns back to greedy (!).

- Added a new interceptor ijb-send-banner, which
  sends back the "Junkbuster" gif. Without imagelist or
  MSIE detection support, or if tinygif = 1, or the
  URL isn't recognized as an imageurl, a lame HTML
  explanation is sent instead.

- Added new feature, which permits blocking remote
  script redirects and firing back a local redirect
  to the browser.
  The feature is conditionally compiled, i.e. it
  can be disabled with --disable-fast-redirects,
  plus it must be activated by a "fast-redirects"
  line in the config file, has its own log level
  and of course wants to be displayed by show-proxy-args
  Note: Boy, all the #ifdefs in 1001 locations and
  all the fumbling with configure.in and acconfig.h
  were *way* more work than the feature itself :-(

- Because a generic redirect template was needed for
  this, tinygif = 3 now uses the same.

- Moved GIFs, and other static HTTP response templates
  to project.h

- Many minor fixes

- Removed some >400 CRs again (Jon, you really worked
  a lot! ;-)

diff --git a/acconfig.h b/acconfig.h
index edf5c08..7d89427 100644 (file)
--- a/acconfig.h
+++ b/acconfig.h
@@ -2,7 +2,7 @@
 #define _CONFIG_H
 /*********************************************************************
  *
- * File        :  $Source: /home/administrator/cvs/ijb/acconfig.h,v $
+ * File        :  $Source: /cvsroot/ijbswa/current/acconfig.h,v $
  *
  * Purpose     :  This file should be the first thing included in every
  *                .c file.  (Before even system headers).  It contains 
@@ -37,6 +37,9 @@
  *
  * Revisions   :
  *    $Log: acconfig.h,v $
+ *    Revision 1.1.1.1  2001/05/15 13:58:45  oes
+ *    Initial import of version 2.9.3 source tree
+ *
  *
  *********************************************************************/
 \f
@@ -99,6 +102,11 @@
  */
 #undef FORCE_LOAD
 
+/*
+ * Locally redirect remote script-redirect URLs
+ */
+#undef FAST_REDIRECTS
+
 /*
  * Split the show-proxy-args page into a page for each config file.
  */

diff --git a/config b/config
index b5b3975..9a20fb7 100644 (file)
--- a/config
+++ b/config
@@ -1,7 +1,7 @@
 #  Sample Configuration file for the Internet Junkbuster 2.0
 
 #
-# $Id: config,v 1.2 2001/05/17 22:37:46 oes Exp $
+# $Id: config,v 1.3 2001/05/20 01:21:20 jongfoster Exp $
 #
 
 #  Table of Contents
@@ -339,9 +339,9 @@ referer     L
 #
 #  As an example of the last option:
 #
-#    tinygif 3 http://www.junkbusters.com/images/fb.gif
+#    tinygif 3 http://no.where/ijb-send-banner.gif
 #
-#  Will replace every blocked image with the "fb.gif" image.
+#  Will replace every blocked image with an image built into junkbuster.
 #
 #  There is one non-obvious benefit to using option "3".  If you use
 #  option 3, your Web browser will likely cache the image you specify
@@ -353,6 +353,31 @@ referer     L
 #
 tinygif   2
 
+#
+#  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 browing
+#  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 aks 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.
+#
+#  Default: Don't intercept script-redirect URLs
+#
+fast-redirects 
+
 #
 #  The debug option sets the level of debugging information to log in
 #  the logfile (and to the console in the Windows version).  A debug
@@ -367,6 +392,7 @@ tinygif   2
 #   debug        16 # LOG  = log all data into the logfile
 #   debug        32 # FRC  = debug force feature
 #   debug        64 # REF  = debug regular expression filter 
+#   debug       128 # RED  = debug fast redirects
 #
 #  Multiple "debug" directives, are OK - they're logical-OR'd
 #  together.