1 #################################################################################
3 # File : $Source: /cvsroot/ijbswa/current/default.filter,v $
5 # $Id: default.filter,v 1.88 2014/05/03 17:18:38 fabiankeil Exp $
7 # Purpose : Rules to process the content of web pages
9 # Copyright : Written by and Copyright (C) 2001-2014 the
10 # Privoxy team. http://www.privoxy.org/
12 # This program is free software; you can redistribute it
13 # and/or modify it under the terms of the GNU General
14 # Public License as published by the Free Software
15 # Foundation; either version 2 of the License, or (at
16 # your option) any later version.
18 # This program is distributed in the hope that it will
19 # be useful, but WITHOUT ANY WARRANTY; without even the
20 # implied warranty of MERCHANTABILITY or FITNESS FOR A
21 # PARTICULAR PURPOSE. See the GNU General Public
22 # License for more details.
24 # The GNU General Public License should be included with
25 # this file. If not, you can view it at
26 # http://www.gnu.org/copyleft/gpl.html
27 # or write to the Free Software Foundation, Inc., 59
28 # Temple Place - Suite 330, Boston, MA 02111-1307, USA.
30 #################################################################################
34 # Generally filters start with a line like "FILTER: name description".
35 # They are then referrable from the actionsfile with +filter{name}
37 # FILTER marks a filter as content filter, other filter
38 # types are CLIENT-HEADER-FILTER, CLIENT-HEADER-TAGGER,
39 # SERVER-HEADER-FILTER and SERVER-HEADER-TAGGER.
41 # Inside the filters, write one Perl-Style substitution (job) per line.
42 # Jobs that precede the first FILTER: line are ignored.
44 # For Details see the pcrs manpage contained in this distribution.
45 # (and the perlre, perlop and pcre manpages)
47 # Note that you are free to choose the delimiter as you see fit.
49 # Note2: In addition to the Perl options gimsx, the following nonstandard
50 # options are supported:
52 # 'U' turns the default to ungreedy matching. Add ? to quantifiers to
53 # switch back to greedy.
55 # 'T' (trivial) prevents parsing for backreferences in the substitute.
56 # Use if you want to include text like '$&' in your substitute without
59 # 'D' (Dynamic) allows the use of variables. Supported variables are:
60 # $host, $origin (the IP address the request came from), $path and $url.
62 # Note that '$' is a bad choice as delimiter for dynamic filters as you
63 # might end up with unintended variables if you use a variable name
64 # directly after the delimiter. Variables will be resolved without
65 # escaping anything, therefore you also have to be careful not to chose
66 # delimiters that appear in the replacement text. For example '<' should
67 # be save, while '?' will sooner or later cause conflicts with $url.
69 #################################################################################
72 #################################################################################
74 # js-annoyances: Get rid of particularly annoying JavaScript abuse.
76 #################################################################################
77 FILTER: js-annoyances Get rid of particularly annoying JavaScript abuse.
79 # Note: Most of these jobs would be safer if restricted to a
80 # <script> context as in:
82 # s/(<script.*)nasty-item(?=.*<\/script>)/$1replacement/sigU
84 # but that would make them match only the first occurrence of
85 # nasty-item in each <script>. We need nestable jobs!
87 # Get rid of Javascript referrer tracking.
88 # Test page: http://www.javascript-page.com/referrer.html
90 s|(?:\w+\.)+referrer|false.toString()|gisU
92 # The status bar is for displaying link targets, not pointless blahblah
94 s@([\W]\s*)((?:this|window)\.(?:default)?status)\s*=\s*((['"]).*?\4)@$1$2 =\
95 (typeof(this.href) != 'undefined')?($3 + ' URL: ' + this.href):($2)@ig
97 s/(?:(?:this|window)\.(?:default)?status)\s*=\s*\w*\s*;//ig
99 # Kill OnUnload popups. Yummy.
100 # Test: http://www.zdnet.com/zdsubs/yahoo/tree/yfs.html
102 s/(<body\s+[^>]*)onunload/$1never/siU
103 s|(<script.*)window\.onunload(?=.*</script>)|$1never|sigU
105 # If we allow window.open, we want normal window features:
106 # Test: http://www.htmlgoodies.com/beyond/notitle.html
108 s/(open\s*\([^\)]+resizable=)(["']?)(?:no|0)\2/$1$2yes$2/sigU
109 s/(open\s*\([^\)]+location=)(["']?)(?:no|0)\2/$1$2yes$2/sigU
110 s/(open\s*\([^\)]+status=)(["']?)(?:no|0)\2/$1$2yes$2/sigU
111 s/(open\s*\([^\)]+scroll(?:ing|bars)=)(["']?)(?:no|0)\2/$1$2auto$2/sigU
112 s/(open\s*\([^\)]+menubar=)(["']?)(?:no|0)\2/$1$2yes$2/sigU
113 s/(open\s*\([^\)]+toolbar=)(["']?)(?:no|0)\2/$1$2yes$2/sigU
114 s/(open\s*\([^\)]+directories=)(["']?)(?:no|0)\2/$1$2yes$2/sigU
115 s/(open\s*\([^\)]+fullscreen=)(["']?)(?:yes|1)\2/$1$2no$2/sigU
116 s/(open\s*\([^\)]+always(?:raised|lowered)=)(["']?)(?:yes|1)\2/$1$2no$2/sigU
117 s/(open\s*\([^\)]+z-?lock=)(["']?)(?:yes|1)\2/$1$2no$2/sigU
118 s/(open\s*\([^\)]+hotkeys=)(["']?)(?:yes|1)\2/$1$2no$2/sigU
119 s/(open\s*\([^\)]+titlebar=)(["']?)(?:no|0)\2/$1$2yes$2/sigU
120 s/(open\s*\([^\)]+always(?:raised|lowered)=)(["']?)(?:yes|1)\2/$1$2no$2/sigU
123 #################################################################################
125 # js-events: Kill JavaScript event bindings and timers (Radically destructive! Only for extra nasty sites).
127 #################################################################################
128 FILTER: js-events Kill JavaScript event bindings and timers (Radically destructive! Only for extra nasty sites).
130 s/(on|event\.)((mouse(over|out|down|up|move))|(un)?load|contextmenu|selectstart)/never/ig
131 # Not events, but abused on the same type of sites:
132 s/(alert|confirm)\s*\(/concat(/ig
133 s/set(timeout|interval)\(/concat(/ig
135 #################################################################################
137 # html-annoyances: Get rid of particularly annoying HTML abuse.
139 #################################################################################
140 FILTER: html-annoyances Get rid of particularly annoying HTML abuse.
142 # New browser windows (if allowed -- see no-popups filter below) should be
143 # resizeable and have a location and status bar
145 s/(<a\s+href[^>]+resizable=)(['"]?)(?:no|0)\2/$1$2yes$2/igU
146 s/(<a\s+href[^>]+location=)(['"]?)(?:no|0)\2/$1$2yes$2/igU
147 s/(<a\s+href[^>]+status=)(['"]?)(?:no|0)\2/$1$2yes1$2/igU
148 s/(<a\s+href[^>]+scrolling=)(['"]?)(?:no|0)\2/$1$2auto$2/igU
149 s/(<a\s+href[^>]+menubar=)(['"]?)(?:no|0)\2/$1$2yes$2/igU
151 # The <BLINK> and <MARQUEE> tags were crimes!
153 s-</?(blink|marquee).*>--sigU
156 #################################################################################
158 # content-cookies: Kill cookies that come in the HTML or JS content.
160 #################################################################################
161 FILTER: content-cookies Kill cookies that come in the HTML or JS content.
163 # JS cookies, except those used by antiadbuster.com to detect us:
165 s|(\w+\.)+cookie(?=[ \t\r\n]*=)(?!='aab)|ZappedCookie|ig
169 s|<meta\s+http-equiv=['"]?set-cookie.*>|<!-- ZappedCookie -->|igU
172 #################################################################################
174 # refresh-tags: Kill automatic refresh tags if refresh time is larger than 9 seconds.
176 #################################################################################
177 FILTER: refresh-tags Kill automatic refresh tags if refresh time is larger than 9 seconds.
179 # Note: Only deactivates refreshes with more than 9 seconds delay to
180 # preserve monster-stupid but common redirections via meta tags.
182 s@<meta\s+http-equiv\s*=\s*(['"]?)refresh\1\s+content\s*=\s*(['"]?)\d{2,}\s*(;(?:\s*url\s*=\s*)?([^>\2]*))?\2@<link rev="x-refresh" href="$4"@ig
185 #################################################################################
187 # unsolicited-popups: Disable unsolicited pop-up windows.
189 #################################################################################
190 FILTER: unsolicited-popups Disable only unsolicited pop-up windows.
192 s+([^'"]\s*<head.*>)(?=\s*[^'"])+$1<script>function PrivoxyWindowOpen(){return(null);}</script>+isU
193 s@([^\w\s.]\s*)((?:map)?(window|this|parent)\.?)?open\s*\(@$1PrivoxyWindowOpen(@ig
194 s+([^'"]\s*</html>)(?!\s*(\\n|'|"))+$1<script>function PrivoxyWindowOpen(a, b, c){return(window.open(a, b, c));}</script>+iU
197 ##################################################################################
199 # all-popups: Kill all popups in JavaScript and HTML.
201 #################################################################################
202 FILTER: all-popups Kill all popups in JavaScript and HTML.
204 s@((\W\s*)(?:map)?(window|this|parent)\.?)open\s*\\?\(@$1concat(@ig # JavaScript
205 #s/\starget\s*=\s*(['"]?)_?(blank|new)\1?/ notarget/ig # HTML
206 s/\starget\s*=\s*(['"]?)_?(blank|new)\1?/ /ig # (X)HTML
208 ##################################################################################
210 # img-reorder: Reorder attributes in <img> tags to make the banners-by-* filters more effective.
212 #################################################################################
213 FILTER: img-reorder Reorder attributes in <img> tags to make the banners-by-* filters more effective.
215 # In the first step src is moved to the start, then width is moved to the second
216 # place to guarantee an order of src, width, height. Also does some white-space
219 # This makes banners-by-size more effective and allows both banners-by-size
220 # and banners-by-link to preserve the original image URL in the title attribute.
222 s|<img\s+?([^>]*)\ssrc\s*=\s*(['"])([^>\\\2]+)\2|<img src=$2$3$2 $1|siUg
223 s|<img\s+?([^>]*)\ssrc\s*=\s*([^'">\\\s]+)|<img src=$2 $1|sig
224 s|(<img[^>]+height)\s*=\s*|$1=|sig
226 s|<img (src=(?:(['"])[^>\\\\2]*\2\|[^'">\\\s]+?))([^>]*)\s+width\s*=\s*((["']?)\d+?\5)(?=[\s>])|<img $1 width=$4$3|siUg
229 #################################################################################
231 # banners-by-size: Kill banners by size.
233 #################################################################################
235 # Standard banner sizes taken from http://www.iab.net/iab_banner_standards/bannersizes.html
237 # Note: Use http://config.privoxy.org/send-banner?type=trans for a transparent 1x1 image
238 # Use http://config.privoxy.org/send-banner?type=pattern for a grey/white pattern image
239 # Use http://config.privoxy.org/send-banner?type=auto to auto-select.
241 # Note2: Use img-reorder before this filter to ensure maximum matching success
243 #################################################################################
244 FILTER: banners-by-size Kill banners by size.
247 s@<img\s+(?:src\s*=\s*(['"]?)([^>\\\1\s]+)\1)?[^>]*?(width=(['"]?)88\4)[^>]*?(height=(['"]?)31\6)[^>]*?(?=/?>)@\
248 <img src="http://config.privoxy.org/send-banner?type=auto" border="0" title="Killed-$2-by-size" $3 $5@sig
249 # 120*60, 120*90, 120*240, 120*600
250 s@<img\s+(?:src\s*=\s*(['"]?)([^>\\\1\s]+)\1)?[^>]*?(width=(['"]?)120\4)[^>]*?(height=(['"]?)(?:600?|90|240)\6)[^>]*?(?=/?>)@\
251 <img src="http://config.privoxy.org/send-banner?type=auto" border="0" title="Killed-$2-by-size" $3 $5@sig
253 s@<img\s+(?:src\s*=\s*(['"]?)([^>\\\1\s]+)\1)?[^>]*?(width=(['"]?)125\4)[^>]*?(height=(['"]?)125\6)[^>]*?(?=/?>)@\
254 <img src="http://config.privoxy.org/send-banner?type=auto" border="0" title="Killed-$2-by-size" $3 $5@sig
256 s@<img\s+(?:src\s*=\s*(['"]?)([^>\\\1\s]+)\1)?[^>]*?(width=(['"]?)160\4)[^>]*?(height=(['"]?)600\6)[^>]*?(?=/?>)@\
257 <img src="http://config.privoxy.org/send-banner?type=auto" border="0" title="Killed-$2-by-size" $3 $5@sig
259 s@<img\s+(?:src\s*=\s*(['"]?)([^>\\\1\s]+)\1)?[^>]*?(width=(['"]?)180\4)[^>]*?(height=(['"]?)150\6)[^>]*?(?=/?>)@\
260 <img src="http://config.privoxy.org/send-banner?type=auto" border="0" title="Killed-$2-by-size" $3 $5@sig
261 # 234*60, 468*60 (Most Banners!)
262 s@<img\s+(?:src\s*=\s*(['"]?)([^>\\\1\s]+)\1)?[^>]*?(width=(['"]?)(?:234|468)\4)[^>]*?(height=(['"]?)60\6)[^>]*?(?=/?>)@\
263 <img src="http://config.privoxy.org/send-banner?type=auto" border="0" title="Killed-$2-by-size" $3 $5@sig
265 s@<img\s+(?:src\s*=\s*(['"]?)([^>\\\1\s]+)\1)?[^>]*?(width=(['"]?)240\4)[^>]*?(height=(['"]?)400\6)[^>]*?(?=/?>)@\
266 <img src="http://config.privoxy.org/send-banner?type=auto" border="0" title="Killed-$2-by-size" $3 $5@sig
268 s@<img\s+(?:src\s*=\s*(['"]?)([^>\\\1\s]+)\1)?[^>]*?(width=(['"]?)(?:250|300)\4)[^>]*?(height=(['"]?)250\6)[^>]*?(?=/?>)@\
269 <img src="http://config.privoxy.org/send-banner?type=auto" border="0" title="Killed-$2-by-size" $3 $5@sig
271 s@<img\s+(?:src\s*=\s*(['"]?)([^>\\\1\s]+)\1)?[^>]*?(width=(['"]?)336\4)[^>]*?(height=(['"]?)280\6)[^>]*?(?=/?>)@\
272 <img src="http://config.privoxy.org/send-banner?type=auto" border="0" title="Killed-$2-by-size" $3 $5@sig
274 # Note: 200*50 was also proposed, but it probably causes too much collateral damage:
276 #s@<img\s+(?:src\s*=\s*(['"]?)([^>\\\1\s]+)\1)?[^>]*?(width=(['"]?)200\4)[^>]*?(height=(['"]?)50\6)[^>]*?(?=/?>)@\
277 # <img src="http://config.privoxy.org/send-banner?type=auto" border="0" title="Killed-$2-by-size" $3 $5@sig
280 #################################################################################
282 # banners-by-link: Kill banners by their links to known clicktrackers (Experimental).
284 #################################################################################
285 FILTER: banners-by-link Kill banners by their links to known clicktrackers.
287 # Common case with width and height attributes:
289 s@<a\s+href\s*=\s*(['"]?)([^>\1\s]*?(?:\
290 adclick # See www.dn.se \
291 | advert # see dict.leo.org \
292 | atwola\.com/(?:link|redir) # see www.cnn.com \
293 | doubleclick\.net/jump/ # redirs for doublecklick.net ads \
295 | (?<!&type=)tracker # (&type=tracker is used in sf's project statistics) \
296 | adlog\.pl # see sf.net \
297 )[^>\1\s]*)\1[^>]*>\s*<img\s+(?:src\s*=\s*(['"]?)([^>\\\3\s]+)\3)?[^>]*((?:width|height)\s*=\s*(['"]?)\d+?\6)[^>]*((?:width|height)\s*=\s*(['"]?)\d+?\8)[^>]*?(?=/?>)\
298 @<img $5 $7 src="http://config.privoxy.org/send-banner?type=auto" border="0" title="Killed $4 by link to $2"@sigx
300 # Rare case w/o explicit dimensions:
302 s@<a\s+href\s*=\s*(['"]?)([^>\1\s]*?(?:ad(?:click|vert)|atwola\.com/(?:link|redir)|doubleclick\.net/jump/|(?<!&type=)tracker|counter|adlog\.pl)[^>\1\s]*)\1[^>]*>\s*<img\s+(?:src\s*=\s*(['"]?)([^>\\\3\s]+)\3)?[^>]*?(?=/?>)@<img src="http://config.privoxy.org/send-banner?type=auto" border="0" title="Killed $4 by link to $2"@sig
305 ################################################################################
307 # webbugs: Squish WebBugs (1x1 invisible GIFs used for user tracking).
309 #################################################################################
310 FILTER: webbugs Squish WebBugs (1x1 invisible GIFs used for user tracking).
312 s@<img[^>]*\s(?:width|height)\s*=\s*['"]?[01](?=\D)[^>]*\s(?:width|height)\s*=\s*['"]?[01](?=\D)[^>]*?>@@siUg
315 #################################################################################
317 # tiny-textforms: Extend those tiny textareas up to 40x80 and kill the hard wrap.
319 #################################################################################
320 FILTER: tiny-textforms Extend those tiny textareas up to 40x80 and kill the hard wrap.
322 s/(<textarea[^>]*?)(?:\s*(?:rows|cols)=(['"]?)\d+\2)+/$1 rows=$2\40$2 cols=$2\80$2/ig
323 s/(<textarea[^>]*?)wrap=(['"]?)hard\2/$1/ig
326 #################################################################################
328 # jumping-windows: Prevent windows from resizing and moving themselves.
330 #################################################################################
331 FILTER: jumping-windows Prevent windows from resizing and moving themselves.
333 s/(?<=[\W])(?:window|this|self)\.(?:move|resize)(?:to|by)\(/''.concat(/ig
335 #################################################################################
337 # frameset-borders: Give frames a border, make them resizable and scrollable.
339 #################################################################################
340 FILTER: frameset-borders Give frames a border and make them resizable.
342 s/(<frameset\s+[^>]*)framespacing=(['"]?)(no|0)\2/$1/igU
343 s/(<frameset\s+[^>]*)frameborder=(['"]?)(no|0)\2/$1/igU
344 s/(<frameset\s+[^>]*)border=(['"]?)(no|0)\2/$1/igU
345 s/(<frame\s+[^>]*)noresize/$1/igU
346 s/(<frame\s+[^>]*)frameborder=(['"]?)(no|0)\2/$1/igU
347 s/(<frame\s+[^>]*)scrolling=(['"]?)(no|0)\2/$1/igU
350 #################################################################################
352 # iframes: Remove all detected iframes. Should only be enabled for
353 # individual sites after testing that the iframes are optional.
355 #################################################################################
356 FILTER: iframes Removes all detected iframes. Should only be enabled for individual sites.
357 s@<iframe.*</iframe>@<!-- iframe removed by Privoxy's iframe filter -->@Uisg
360 #################################################################################
362 # demoronizer: Correct Microsoft's abuse of standardized character sets, which
363 # leave the browser to (mis)-interpret unknown characters, with
364 # sometimes bizarre results on non-MS platforms.
366 # credit: ripped from the demoroniser.pl script by:
367 # John Walker -- January 1998, http://www.fourmilab.ch/webtools/demoroniser
369 #################################################################################
370 FILTER: demoronizer Fix MS's non-standard use of standard charsets.
372 s/(&\#[0-2]\d\d)\s/$1; /g
373 # per Robert Lynch: http://slate.msn.com//?id=2067547, just a guess.
374 # Must come before x94 below.
375 s/\xE2\x80\x94/ -- /g
387 # Bullet type character.
391 #s-\x98-<sup>~</sup>-g
392 #s-\x99-<sup>TM</sup>-g
397 #################################################################################
399 # shockwave-flash: Kill embedded Shockwave Flash objects.
400 # Note: Better just block "/.*\.swf$"!
402 #################################################################################
403 FILTER: shockwave-flash Kill embedded Shockwave Flash objects.
405 s|<object [^>]*macromedia.*</object>|<!-- Squished Shockwave Object -->|sigU
406 s|<embed [^>]*(application/x-shockwave-flash\|\.swf).*>(.*</embed>)?|<!-- Squished Shockwave Flash Embed -->|sigU
409 #################################################################################
411 # quicktime-kioskmode: Make Quicktime movies saveable.
413 #################################################################################
414 FILTER: quicktime-kioskmode Make Quicktime movies saveable.
416 s/(<embed\s+[^>]*)kioskmode\s*=\s*(["']?)true\2/$1/ig
419 #################################################################################
421 # fun: Text replacements for subversive browsing fun!
423 #################################################################################
424 FILTER: fun Text replacements for subversive browsing fun!
428 s/microsoft(?!\.[^\s])/MicroSuck/ig
430 # Buzzword Bingo (example for extended regex syntax)
432 s* (?:industry|world)[ -]leading \
434 | customer[ -]focused \
436 | award[ -]winning # Comments are OK, too! \
437 | high[ -]performance \
438 | solutions[ -]based \
442 *$0<sup><font color="red"><b>Bingo!</b></font></sup> \
447 s/(M|m)edien(?![^<]*>)/$1ädchen/Ug
449 #################################################################################
451 # crude-parental: Crude parental filtering. Use with a suitable blocklist.
452 # Pages are "blocked" based on keyword matching.
454 #################################################################################
455 FILTER: crude-parental Crude parental filtering. Note that this filter doesn't work reliably.
457 # (Note: Middlesex, Sussex and Essex are counties in the UK, not rude words)
458 # (Note #2: Is 'sex' a rude word?!)
460 s%^.*(?<!middle)(?<!sus)(?<!es)sex.*$%<html><head><title>Blocked</title></head><body>\
461 <h3>Blocked by Privoxy's crude-parental filter due to possible adult content.</h3></body></html>%is
463 s+^.*warez.*$+<html><head><title>No Warez</title></head><body><h3>You're not searching for illegal stuff, are you?</h3></body></html>+is
465 # Remove by description
467 (?:(suck|lick|tongue|rub|fuck|fingering|finger|chicks?)\s*)?\
468 (?:(her|your|my|hard|with|big|wet|tight|pink|hot|moist|young|teen)\s*)+\
469 (dicks?|penis|cocks?|balls?|tits?|pussy|cunt|clit|ass|mouth).*$\
470 /This page has been blocked by Privoxy's crude-parental content filter\
475 (download|broadband|view|watch|free|get|extreem)?\s*\
476 (sex|xxx|porn|cumshot|fuck(ing|s)?|anal|ass|asian|adult|Amateur|org(y|ies)|close ups?|hand?job|nail(ed)?)+\s*\
477 (movies?|pics?|videos?|dvds?|dvd's|links?).*$\
478 /This page has been blocked by Privoxy's crude-parental content filter\
481 #Remove by age disclaimer
483 (models?|chicks?|girls?|women|persons)\s*\
484 (who|are|were)+ (over|at least) (16|18|21) years (old|of age).*$\
485 /This page has been blocked by Privoxy's crude-parental content filter\
488 #Remove by regulations
489 s/^.*(Section 2257|18 U.?S.?C.? 2257).*$\
490 /This page has been blocked by Privoxy's crude-parental content filter\
494 #################################################################################
496 # IE-Exploits: Disable some known Internet Explorer bug exploits.
498 #################################################################################
499 FILTER: ie-exploits Disable some known Internet Explorer bug exploits.
501 # Note: This is basically a demo and waits for someone more interested in IE
502 # security (sic!) to take over.
504 # Cross-site-scripting:
506 s%f\("javascript:location.replace\('mk:@MSITStore:C:'\)"\);%alert\("This page looks like it tries to use a vulnerability described here:\n http://online.securityfocus.com/archive/1/298748/2002-11-02/2002-11-08/2"\);%siU
508 # Address bar spoofing (http://www.secunia.com/advisories/10395/):
510 s/(<a[^>]*href[^>]*)(?:\x01|\x02|\x03|%0[012])@/$1MALICIOUS-LINK@/ig
514 s%<script language="JavaScript">(window\.open|1;''\.concat)\("readme\.eml", null, "resizable=no,top=6000,left=6000"\)</script>%<br><font size="7"> WARNING: This Server is infected with <a href="http://www.cert.org/advisories/CA-2001-26.html">Nimda</a>!</font>%g
517 #################################################################################
520 # site-specifics: Cure for site-specific problems. Don't apply generally!
522 # Note: The fixes contained here are so specific to the problems of the
523 # particular web sites they are designed for that they would be a
524 # waste of CPU cycles (or even destructive!) on 99.9% of the web
525 # sites where they don't apply.
527 #################################################################################
528 FILTER: site-specifics Cure for site-specific problems. Don't apply generally!
530 # www.spiegel.de excludes X11 users from viewing Flash5 objects - shame.
531 # Apply to: www.spiegel.de/static/js/flash-plugin.js
533 s/indexOf\("x11"\)/indexOf("x13")/
535 # www.quelle-bausparkasse.de uses a very stupid redirect mechanism that
536 # relies on a webbug being present. Can we tolerate that? No!
537 # Apply to: www.quelle-bausparkasse.de/$
541 # groups.yahoo.com has splash pages that one needs to click through in
542 # order to access the actual messages. Let the browser do that. Thanks
543 # to Paul Jobson for this one:
545 s|<a href="(.+?)">(?:Continue to message\|Weiter zu Nachricht)</a>|<meta http-equiv="refresh" content="0; URL=$1">|ig
547 # monster.com has two very similar gimmicks:
549 s|<input type="hidden" name="REDIRECT" value="(.+?)">|<meta http-equiv="refresh" content="0; URL=$1">|i
551 s|<IMG SRC="http://media.monster.com/mm/usen/my/no_thanks_211x40.gif".+?>|<meta http-equiv="refresh" content="0; URL=http://my.monster.com/resume.asp">|i
553 # nytimes.com triggers popups through the onload handler of dummy images
554 # to fool popup-blockers.
556 s|(<img [^>]*)onload|$1never|sig
558 # Pre-check all the "Discard" buttons in GNU Mailman's web interface.
559 # (This saves a lot of mouse aiming practice when flushing spamtraps)
561 s|(<INPUT name="\d{2,4}" type="RADIO" value="0") CHECKED |$1|g
562 s|<INPUT name="\d{2,4}" type="RADIO" value="3" |$0 checked|g
564 #################################################################################
566 # no-ping: Removes non-standard ping attributes in <a> and <area> tags.
568 #################################################################################
569 FILTER: no-ping Removes non-standard ping attributes in <a> and <area> tags.
570 s@(<a(?:rea)?[^>]*?)\sping=(['"]?)([^"'>]+)\2([>\s]?)@\
571 <strong style="color:white; background-color:red;" title="Privoxy removed ping target '$3'">PING!</strong>\n$1$4@ig
573 #################################################################################
575 # google: CSS-based block for Google text ads. Also removes
576 # a width limitation and the toolbar advertisement.
578 #################################################################################
579 FILTER: google CSS-based block for Google text ads. Also removes a width limitation and the toolbar advertisement.
581 s@</head>[^\\]@<style type="text/css">\n\
582 /* Style sheet inserted by Privoxy's google filter. */\n\
583 \#fbc, \#fbl, \#ra, .rhh {visibility: hidden !important;}\n\
584 \#tpa1,\#tpa2,\#tpa3,\#tpa4,\#tpa5,\#tpa5, \#spl, .ch, \#ads,\
585 \#toolbar, \#google_ads_frame, \#mbEnd {display: none !important;}\n\
586 .main_body, .j, \#res, .med, .hd, .g, .s\n\
587 {width: 99%; max-width: 100%; margin-left: 0; margin-right: 0;}\n\
589 s@<div style=\"padding-top:11px;min-width:500px\">@<div id="main_body">@
590 s@(<table cellspacing=0 cellpadding=0 width=25% align=right bgcolor=\#ffffff border=0\
591 |</font></td></tr></tbody></table><table align=\"right\" bgcolor=\"\#ffffff\"\
592 |<table cellspacing=0 cellpadding=0 align=right bgcolor=\#ffffff border=0\
593 |<table style=\"clear:both\" align=right width=25% cellspacing=\"0\" cellpadding=\"0\"\
594 border=\"0\" bgcolor=\"\#ffffff\")@$0 id="ads"@
595 s@(<br clear=all><table)( border=0 cellpadding=9><tr><td)@$1 id="toolbar"$2@
597 #################################################################################
599 # yahoo: CSS-based block for Yahoo text ads. Also removes a width limitation.
601 #################################################################################
602 FILTER: yahoo CSS-based block for Yahoo text ads. Also removes a width limitation.
604 s@</head>@\n<style type="text/css">\n\
605 /* Style sheet inserted by Privoxy's yahoo filter. */\n\
606 \#symadbn, \#ymadbn, .yschbox, .yschhd, .bbox, \#yschsec, \#sec,\
607 \#yschanswr, .yschftad, .yschspn, .yschspns, \#ygrp-sponsored-links,\
608 \#nwad, \#MWA2, \#MSCM, \#yregad, \#sponsored-links,\
609 \#ks-ypn-ads, .ad, \#east, \#ygrp-vital, .ads {display: none !important;}\n\
610 \#yschpri, \#yschweb, \#pri, \#web, \#main, .yschttl, .abstr, .res \n\
611 {width: 99% !important; max-width: 100% !important;}\n\
612 .yschttl, .res, .res.indent, \#web {padding: 0px; margin: 0px !important;}\n\
613 \#web {padding-left: 0.5em}\n\
614 \#yschqcon, \#yschtg {width: auto !important; /* No useless horizontal scrollbar please */}\n\
615 \#composebox \#compose_editorArea {width: 70% !important; /* reasonably sized reply textarea please */\n\
618 s@(<textarea\s+id="composeArea"[^>]*)width:545px;@$1width:70%;@isU
620 #################################################################################
622 # msn: CSS-based block for MSN text ads. Also removes tracking URLs
623 # and a width limitation.
625 #################################################################################
626 FILTER: msn CSS-based block for MSN text ads. Also removes tracking URLs and a width limitation.
628 s@</head>@<style type="text/css">\n\
629 /* Style sheet inserted by Privoxy's msn filter. */\n\
630 .msn_ads, \#at, \#ar, .mktmsg {display: none !important;}\n\
631 \#results, .flank, .results_area_flank, .results_area_stroke,\n\
632 \#results_area, \#content, .sb_tlst, .sa_cc, .sb_ph, \#sw_main,\n\
633 .content, \#sw_foot, \#bf, \#sw_content, \#sidebar, \#pag\n\
634 {width: 99% !important; min-width: 99% !important;\n\
635 max-width: 100% !important; /* width:100% sometimes causes horizontal scrollbars */}\n\
636 /* Remove 'related' ads */\n\
637 .b_ad, .b_adlabel {clear: both; display:none;}\n\
638 /* Remove "suggestions". They are next to worthless but partly overlap with the search results */\n\
639 .suggestion, \#nys_right, \#nys {clear: both; display:none;}\n\
641 /* Overlay ads to enable Facebook 'likes' in search results. */\n\
642 .sn_container {display:none !important;}\n\
643 \#content {padding-right: 0;}\n\
645 # Are these ids still in use?
646 s@(<div[^>]*) id=(["']?)ads_[^\2]*\2@$1 class="msn_ads"@Uig
647 s@(<div[^>]*) class=(["']?)sb_ads[^\2]*\2@$1 class="msn_ads"@Uig
648 s@(<a[^>]*href=\")http://g.msn.com/.*\?(http://.*)(&&DI=.*)(\")@$1$2$4@Ug
649 s@(<a[^>]*)gping=\".*\"@$1 title="URL cleaned up by Privoxy's msn filter"@Ug
651 #################################################################################
653 # blogspot: Cleans up some Blogspot blogs. Read the fine print before using this.
655 # This filter also intentionally removes some navigation stuff and
656 # sets the page width to 100%. As a result, some rounded "corners" would
657 # appear to early or not at all and as fixing this would require a browser
658 # that understands background-size (CSS3), they are removed instead.
660 # When applied to feeds, it removes comment titles that
661 # only contain the beginning of the actual comment.
663 #################################################################################
664 FILTER: blogspot Cleans up some Blogspot blogs. Read the fine print before using this.
666 s@</head>@<style type="text/css">\n\
667 /* Style sheet inserted by Privoxy's blogspot filter. */\n\
668 \#powered-by {display: none !important;}\n\
669 \#wrap4, \#wrapper {margin-top: 0px }\n\
670 \#blogheader, \#header {margin-top: 0.5em !important}\n\
671 \#content {width: 98% }\n\
672 \#main {width: 70% }\n\
673 \#sidebar {width: 29% }\n\
674 .post-body {overflow: auto;}\n\
675 .blogComments {width: 100%; overflow: auto;}\n</style>\n$0@
676 s@<body.*(?:<div id="space-for-ie"></div>|(<div id="(?:content|wrap4|wrapper)))@<body>\
677 <!-- Privoxy's blogspot filter ditched some garbage here -->$1@Us
678 s@(<div style=\"[^\"]*width:)30em@$1 100%@
679 s@background:url\(\"http://www.blogblog.com/rounders[^\"]*\"\).*;@/*$0*/@Ug
680 s@(background:\#[a-f\d]{3})( url\(\"http://www.blogblog.com/rounders[^\"]*\"\).*;)@$1 ;/*$2*/@Ug
681 # Do the feed filtering magic as described above.
682 s@<title(?:\s+type=\'text\')?>([^<]*)(?:\.\.\.)?\s*</title>\s*\
683 (<content(?:\s+type=\'(?:html|text)\')?>\s*\1)@<title></title>$2@ig
685 #################################################################################
687 # x-httpd-php-to-html: Changes the Content-Type header from
688 # x-httpd-php to html. "Content-Type: x-httpd-php"
689 # is set by clueless PHP users and causes many
690 # browsers do open a download menu instead of
691 # rendering the page.
693 #################################################################################
694 SERVER-HEADER-FILTER: x-httpd-php-to-html Changes the Content-Type header from x-httpd-php to html.
696 s@^(Content-Type:)\s*application/x-httpd-php@$1 text/html@i
698 #################################################################################
700 # html-to-xml: Changes the Content-Type header from html to xml.
702 #################################################################################
703 SERVER-HEADER-FILTER: html-to-xml Changes the Content-Type header from html to xml.
705 s@^(Content-Type:)\s*text/html(;.*)?$@$1 application/xhtml+xml$2@i
707 #################################################################################
709 # xml-to-html: Changes the Content-Type header from xml to html.
711 #################################################################################
712 SERVER-HEADER-FILTER: xml-to-html Changes the Content-Type header from xml to html.
714 s@^(Content-Type:)\s*(?:application|text)/(?:xhtml\+)?xml(;.*)?$@$1 text/html$2@i
716 #################################################################################
718 # hide-tor-exit-notation: Remove the Tor exit node notation in Host and Referer headers.
720 # Note: If Privoxy and Tor are chained and Privoxy is configured to
721 # use socks4a, one can use http://www.example.org.foobar.exit/
722 # to access the host www.example.org through Tor exit node foobar.
724 # As the HTTP client isn't aware of this notation, it treats the
725 # whole string "www.example.org.foobar.exit" as host and uses it
726 # for the "Host" and "Referer" headers. From the server's point of
727 # view the resulting headers are invalid and can cause problems.
729 # An invalid "Referer" header can trigger "hot-linking" protections,
730 # an invalid "Host" header will make it impossible for the server to
731 # find the right vhost (several domains hosted on the same IP address).
733 # This filter removes the "foo.exit" part in those headers
734 # to prevent the mentioned problems. Note that it only modifies
735 # the HTTP headers, it doesn't make it impossible for the server
736 # to detect your Tor exit node based on the IP address the request is
739 #################################################################################
740 CLIENT-HEADER-FILTER: hide-tor-exit-notation Removes the Tor exit node notation in Host and Referer headers.
742 s@^((?:Referer|Host):\s*(?:https?://)?[^/]*)\.[^\./]*?\.exit@$1@i
744 #################################################################################
746 # less-download-windows: Prevents annoying download windows for content types
747 # the browser can handle itself.
749 #################################################################################
750 SERVER-HEADER-FILTER: less-download-windows Prevent annoying download windows for content types the browser can handle itself.
752 s@^Content-Disposition:.*filename=(["']?).*\.(png|gif|jpe?g|diff?|d?patch|c|h|pl|shar)\1.*$@@i
753 s@^(Content-Type:)\s*(?:message/(?:news|rfc822)|text/x-.*|application/x-sh(?:\s|$))\s*@$1 text/plain@i
755 #################################################################################
757 # image-requests: Tags detected image requests as "IMAGE-REQUEST". Whether
758 # or not the detection actually works depends on the browser.
760 #################################################################################
761 CLIENT-HEADER-TAGGER: image-requests Tags detected image requests as "IMAGE-REQUEST".
763 s@^Accept:\s*image/.*@IMAGE-REQUEST@i
765 #################################################################################
767 # css-requests: Tags detected CSS requests as "CSS-REQUEST". Whether
768 # or not the detection actually works depends on the browser.
770 #################################################################################
771 CLIENT-HEADER-TAGGER: css-requests Tags detected CSS requests as "CSS-REQUEST".
773 s@^Accept:\s*text/css.*@CSS-REQUEST@i
775 #################################################################################
777 # range-requests: Tags range requests as "RANGE-REQUEST".
779 # By default Privoxy removes Range headers for requests to
780 # ressources that will be filtered to make sure the filters
781 # get the whole picture. Otherwise Range requests could be
782 # intentionally used to circumvent filters or, less likely,
783 # filtering a partial response may damage it because it matched
784 # a pattern that the ressource as a whole wouldn't.
786 # Range requests can be useful and save bandwidth so instead
787 # of removing Range headers for requests to ressources that
788 # will be filtered, you may prefer to simply disable filtering
789 # for those requests.
791 # That's what this tagger is all about. After enabling it,
792 # you can disable filtering for range requests using the following
795 # {-filter -deanimate-gifs}
798 #################################################################################
799 CLIENT-HEADER-TAGGER: range-requests Tags range requests as "RANGE-REQUEST".
801 s@^Range:.*@RANGE-REQUEST@i
803 #################################################################################
805 # client-ip-address: Tags the request with the client's IP address.
807 #################################################################################
808 CLIENT-HEADER-TAGGER: client-ip-address Tags the request with the client's IP address.
810 s@^\w*\s+.*\s+HTTP/\d\.\d\s*@IP-ADDRESS: $origin@D
812 #################################################################################
814 # http-method: Tags the request with its HTTP method.
816 #################################################################################
817 CLIENT-HEADER-TAGGER: http-method Tags the request with its HTTP method.
819 s@^(\w*).*HTTP/\d\.\d\s*$@$1@i
821 #################################################################################
823 # allow-post: Tags POST requests as "ALLOWED-POST".
825 #################################################################################
826 CLIENT-HEADER-TAGGER: allow-post Tags POST requests as "ALLOWED-POST".
828 s@^(?:POST)\s+.*\s+HTTP/\d\.\d\s*@ALLOWED-POST@i
830 #################################################################################
832 # complete-url: Tags the request with the whole request URL.
834 #################################################################################
835 CLIENT-HEADER-TAGGER: complete-url Tags the request with the whole request URL.
837 s@^\w*\s+(.*)\s+HTTP/\d\.\d\s*$@$1@i
839 #################################################################################
841 # user-agent: Tags the request with the complete User-Agent header.
843 #################################################################################
844 CLIENT-HEADER-TAGGER: user-agent Tags the request with the complete User-Agent header.
846 s@^User-Agent:.*@$0@i
848 #################################################################################
850 # referer: Tags the request with the complete Referer header.
852 #################################################################################
853 CLIENT-HEADER-TAGGER: referer Tags the request with the complete Referer header.
857 #################################################################################
859 # content-type: Tags the request with the content type declared by the server.
861 #################################################################################
862 SERVER-HEADER-TAGGER: content-type Tags the request with the content type declared by the server.
864 s@^Content-Type:\s*([^;]+).*@$1@i
866 #################################################################################
868 # privoxy-control: The taggers create tags with the content of X-Privoxy-Control
869 # headers, the filters remove said headers.
871 #################################################################################
872 CLIENT-HEADER-TAGGER: privoxy-control Creates tags with the content of X-Privoxy-Control headers.
874 s@^X-Privoxy-Control:\s*@@i
876 CLIENT-HEADER-FILTER: privoxy-control Removes X-Privoxy-Control headers.
878 s@^X-Privoxy-Control:.*@@i
880 SERVER-HEADER-TAGGER: privoxy-control Creates tags with the content of X-Privoxy-Control headers.
882 s@^X-Privoxy-Control:\s*@@i
884 SERVER-HEADER-FILTER: privoxy-control Removes X-Privoxy-Control headers.
886 s@^X-Privoxy-Control:.*@@i