CLASS="SECT1"
><A
NAME="APPENDIX"
->9. Appendix</A
+>14. Appendix</A
></H1
><DIV
CLASS="SECT2"
CLASS="SECT2"
><A
NAME="REGEX"
->9.1. Regular Expressions</A
+>14.1. Regular Expressions</A
></H2
><P
> <SPAN
building complex patterns however. Let's look at a few of the common ones,
and then some examples:</P
><P
+><P
></P
><TABLE
BORDER="0"
></TABLE
><P
></P
+></P
+><P
><P
></P
><TABLE
></TABLE
><P
></P
+></P
+><P
><P
></P
><TABLE
></TABLE
><P
></P
+></P
+><P
><P
></P
><TABLE
></TABLE
><P
></P
+></P
+><P
><P
></P
><TABLE
CLASS="QUOTE"
>"."</SPAN
>) needs to be taken literally and
- not as a special meta-character.
+ not as a special meta-character. Example: <SPAN
+CLASS="QUOTE"
+>"example\.com"</SPAN
+>, makes
+ sure the period is recognized only as a period (and not expanded to its
+ meta-character meaning of any single character).
</TD
></TR
></TBODY
></TABLE
><P
></P
+></P
+><P
><P
></P
><TABLE
CLASS="EMPHASIS"
>[]</I
> - Characters enclosed in brackets will be matched if
- any of the enclosed characters are encountered.
+ any of the enclosed characters are encountered. For instance, <SPAN
+CLASS="QUOTE"
+>"[0-9]"</SPAN
+>
+ matches any numeric digit (zero through nine). As an example, we can combine
+ this with <SPAN
+CLASS="QUOTE"
+>"+"</SPAN
+> to match any digit one of more times: <SPAN
+CLASS="QUOTE"
+>"[0-9]+"</SPAN
+>.
</TD
></TR
></TBODY
></TABLE
><P
></P
+></P
+><P
><P
></P
><TABLE
></TABLE
><P
></P
+></P
+><P
><P
></P
><TABLE
sub-expression on either side of <SPAN
CLASS="QUOTE"
>"|"</SPAN
-> matches.
+> matches. As an example:
+ <SPAN
+CLASS="QUOTE"
+>"/(this|that) example/"</SPAN
+> uses grouping and the bar character
+ and would match either <SPAN
+CLASS="QUOTE"
+>"this example"</SPAN
+> or <SPAN
+CLASS="QUOTE"
+>"that
+ example"</SPAN
+>, and nothing else.
</TD
></TR
></TBODY
></TABLE
><P
></P
+></P
+><P
><P
></P
><TABLE
CLASS="QUOTE"
>"string2"</SPAN
> in this
- example.
+ example. There must of course be a match on <SPAN
+CLASS="QUOTE"
+>"string1"</SPAN
+> first.
</TD
></TR
></TBODY
></TABLE
><P
></P
+></P
><P
> These are just some of the ones you are likely to use when matching URLs with
<SPAN
><H2
CLASS="SECT2"
><A
-NAME="AEN1587"
->9.2. <SPAN
+NAME="AEN2718"
+>14.2. <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
>'s Internal Pages</A
Privoxy main page:
</P
><A
-NAME="AEN1602"
+NAME="AEN2733"
></A
><BLOCKQUOTE
CLASS="BLOCKQUOTE"
><LI
><P
>
- Show information about the current configuration:
+ Show information about the current configuration, including viewing and
+ editing of actions files:
</P
><A
-NAME="AEN1609"
+NAME="AEN2740"
></A
><BLOCKQUOTE
CLASS="BLOCKQUOTE"
Show the source code version numbers:
</P
><A
-NAME="AEN1614"
+NAME="AEN2745"
></A
><BLOCKQUOTE
CLASS="BLOCKQUOTE"
><LI
><P
>
- Show the client's request headers:
+ Show the browser's request headers:
</P
><A
-NAME="AEN1619"
+NAME="AEN2750"
></A
><BLOCKQUOTE
CLASS="BLOCKQUOTE"
Show which actions apply to a URL and why:
</P
><A
-NAME="AEN1624"
+NAME="AEN2755"
></A
><BLOCKQUOTE
CLASS="BLOCKQUOTE"
to run, but only as a pass-through proxy, with no actions taking place:
</P
><A
-NAME="AEN1630"
+NAME="AEN2761"
></A
><BLOCKQUOTE
CLASS="BLOCKQUOTE"
> Short cuts. Turn off, then on:
</P
><A
-NAME="AEN1634"
+NAME="AEN2765"
></A
><BLOCKQUOTE
CLASS="BLOCKQUOTE"
</P
></BLOCKQUOTE
><A
-NAME="AEN1637"
+NAME="AEN2768"
></A
><BLOCKQUOTE
CLASS="BLOCKQUOTE"
</P
></BLOCKQUOTE
></LI
-><LI
-><P
->
- Edit the actions list file:
- </P
-><A
-NAME="AEN1642"
-></A
-><BLOCKQUOTE
-CLASS="BLOCKQUOTE"
-><P
->
- <A
-HREF="http://config.privoxy.org/edit-actions"
-TARGET="_top"
->http://config.privoxy.org/edit-actions</A
->
- </P
-></BLOCKQUOTE
-></LI
></UL
></P
><P
-> These may be bookmarked for quick reference. </P
+> These may be bookmarked for quick reference. See next. </P
><DIV
CLASS="SECT3"
><H3
CLASS="SECT3"
><A
NAME="BOOKMARKLETS"
->9.2.1. Bookmarklets</A
+>14.2.1. Bookmarklets</A
></H3
><P
-> Here are some bookmarklets to allow you to easily access a
+> Below are some <SPAN
+CLASS="QUOTE"
+>"bookmarklets"</SPAN
+> to allow you to easily access a
<SPAN
CLASS="QUOTE"
>"mini"</SPAN
-> version of this page. They are designed for MS Internet
- Explorer, but should work equally well in Netscape, Mozilla, and other
- browsers which support JavaScript. They are designed to run directly from
- your bookmarks - not by clicking the links below (although that will work for
- testing).</P
+> version of some of <SPAN
+CLASS="APPLICATION"
+>Privoxy's</SPAN
+>
+ special pages. They are designed for MS Internet Explorer, but should work
+ equally well in Netscape, Mozilla, and other browsers which support
+ JavaScript. They are designed to run directly from your bookmarks - not by
+ clicking the links below (although that should work for testing).</P
><P
> To save them, right-click the link and choose <SPAN
CLASS="QUOTE"
CLASS="QUOTE"
>"may not be safe"</SPAN
> - just click OK. Then you can run the
- Bookmarklet directly from your favourites/bookmarks. For even faster access,
+ Bookmarklet directly from your favorites/bookmarks. For even faster access,
you can put them on the <SPAN
CLASS="QUOTE"
>"Links"</SPAN
> <A
HREF="javascript:void(window.open('http://config.privoxy.org/toggle?mini=y&set=enabled','ijbstatus','width=250,height=100,resizable=yes,scrollbars=no,toolbar=no,location=no,directories=no,status=no,menubar=no,copyhistory=no').focus());"
TARGET="_top"
->Enable Privoxy</A
+>Privoxy - Enable</A
>
</P
></LI
> <A
HREF="javascript:void(window.open('http://config.privoxy.org/toggle?mini=y&set=disabled','ijbstatus','width=250,height=100,resizable=yes,scrollbars=no,toolbar=no,location=no,directories=no,status=no,menubar=no,copyhistory=no').focus());"
TARGET="_top"
->Disable Privoxy</A
+>Privoxy - Disable</A
>
</P
></LI
> <A
HREF="javascript:void(window.open('http://config.privoxy.org/toggle?mini=y&set=toggle','ijbstatus','width=250,height=100,resizable=yes,scrollbars=no,toolbar=no,location=no,directories=no,status=no,menubar=no,copyhistory=no').focus());"
TARGET="_top"
->Toggle Privoxy</A
+>Privoxy - Toggle Privoxy</A
> (Toggles between enabled and disabled)
</P
></LI
> <A
HREF="javascript:void(window.open('http://config.privoxy.org/toggle?mini=y','ijbstatus','width=250,height=2,resizable=yes,scrollbars=no,toolbar=no,location=no,directories=no,status=no,menubar=no,copyhistory=no').focus());"
TARGET="_top"
->View Privoxy Status</A
+>Privoxy- View Status</A
+>
+ </P
+></LI
+><LI
+><P
+> <A
+HREF="javascript:w=Math.floor(screen.width/2);h=Math.floor(screen.height*0.9);void(window.open('http://www.privoxy.org/actions','Feedback','screenx='+w+',width='+w+',height='+h+',scrollbars=yes,toolbar=no,location=no,directories=no,status=no,menubar=no,copyhistory=no').focus());"
+TARGET="_top"
+>Privoxy - Submit Filter Feedback</A
>
</P
></LI
><H2
CLASS="SECT2"
><A
+NAME="CHAIN"
+>14.3. Chain of Events</A
+></H2
+><P
+> Let's take a quick look at the basic sequence of events when a web page is
+ requested by your browser and <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> is on duty:</P
+><P
+> <P
+></P
+><UL
+><LI
+><P
+> First, your web browser requests a web page. The browser knows to send
+ the request to <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+>, which will in turn,
+ relay the request to the remote web server after passing the following
+ tests:
+ </P
+></LI
+><LI
+><P
+> <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> traps any request for its own internal CGI
+ pages (e.g http://p.p/) and sends the CGI page back to the browser.
+ </P
+></LI
+><LI
+><P
+> Next, <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> checks to see if the URL
+ matches any <A
+HREF="actions-file.html#BLOCK"
+TARGET="_top"
+><SPAN
+CLASS="QUOTE"
+>"+block"</SPAN
+></A
+> patterns. If
+ so, the URL is then blocked, and the remote web server will not be contacted.
+ <A
+HREF="actions-file.html#HANDLE-AS-IMAGE"
+TARGET="_top"
+><SPAN
+CLASS="QUOTE"
+>"+handle-as-image"</SPAN
+></A
+>
+ is then checked and if it does not match, an
+ HTML <SPAN
+CLASS="QUOTE"
+>"BLOCKED"</SPAN
+> page is sent back. Otherwise, if it does match,
+ an image is returned. The type of image depends on the setting of <A
+HREF="actions-file.html#SET-IMAGE-BLOCKER"
+TARGET="_top"
+><SPAN
+CLASS="QUOTE"
+>"+set-image-blocker"</SPAN
+></A
+>
+ (blank, checkerboard pattern, or an HTTP redirect to an image elsewhere).
+ </P
+></LI
+><LI
+><P
+> Untrusted URLs are blocked. If URLs are being added to the
+ <TT
+CLASS="FILENAME"
+>trust</TT
+> file, then that is done.
+ </P
+></LI
+><LI
+><P
+> If the URL pattern matches the <A
+HREF="actions-file.html#FAST-REDIRECTS"
+TARGET="_top"
+><SPAN
+CLASS="QUOTE"
+>"+fast-redirects"</SPAN
+></A
+> action,
+ it is then processed. Unwanted parts of the requested URL are stripped.
+ </P
+></LI
+><LI
+><P
+> Now the rest of the client browser's request headers are processed. If any
+ of these match any of the relevant actions (e.g. <A
+HREF="actions-file.html#HIDE-USER-AGENT"
+TARGET="_top"
+><SPAN
+CLASS="QUOTE"
+>"+hide-user-agent"</SPAN
+></A
+>,
+ etc.), headers are suppressed or forged as determined by these actions and
+ their parameters.
+ </P
+></LI
+><LI
+><P
+> Now the web server starts sending its response back (i.e. typically a web page and related
+ data).
+ </P
+></LI
+><LI
+><P
+> First, the server headers are read and processed to determine, among other
+ things, the MIME type (document type) and encoding. The headers are then
+ filtered as deterimed by the
+ <A
+HREF="actions-file.html#PREVENT-SETTING-COOKIES"
+TARGET="_top"
+><SPAN
+CLASS="QUOTE"
+>"+prevent-setting-cookies"</SPAN
+></A
+>,
+ <A
+HREF="actions-file.html#SESSION-COOKIES-ONLY"
+TARGET="_top"
+><SPAN
+CLASS="QUOTE"
+>"+session-cookies-only"</SPAN
+></A
+>,
+ and <A
+HREF="actions-file.html#DOWNGRADE-HTTP-VERSION"
+TARGET="_top"
+><SPAN
+CLASS="QUOTE"
+>"+downgrade-http-version"</SPAN
+></A
+>
+ actions.
+ </P
+></LI
+><LI
+><P
+> If the <A
+HREF="actions-file.html#KILL-POPUPS"
+TARGET="_top"
+><SPAN
+CLASS="QUOTE"
+>"+kill-popups"</SPAN
+></A
+>
+ action applies, and it is an HTML or JavaScript document, the popup-code in the
+ response is filtered on-the-fly as it is received.
+ </P
+></LI
+><LI
+><P
+> If a <A
+HREF="actions-file.html#FILTER"
+TARGET="_top"
+><SPAN
+CLASS="QUOTE"
+>"+filter"</SPAN
+></A
+>
+ or <A
+HREF="actions-file.html#DEANIMATE-GIFS"
+TARGET="_top"
+><SPAN
+CLASS="QUOTE"
+>"+deanimate-gifs"</SPAN
+></A
+>
+ action applies (and the document type fits the action), the rest of the page is
+ read into memory (up to a configurable limit). Then the filter rules (from
+ <TT
+CLASS="FILENAME"
+>default.filter</TT
+>) are processed against the buffered
+ content. Filters are applied in the order they are specified in the
+ <TT
+CLASS="FILENAME"
+>default.filter</TT
+> file. Animated GIFs, if present, are
+ reduced to either the first or last frame, depending on the action
+ setting.The entire page, which is now filtered, is then sent by
+ <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> back to your browser.
+ </P
+><P
+> If neither <A
+HREF="actions-file.html#FILTER"
+TARGET="_top"
+><SPAN
+CLASS="QUOTE"
+>"+filter"</SPAN
+></A
+>
+ or <A
+HREF="actions-file.html#DEANIMATE-GIFS"
+TARGET="_top"
+><SPAN
+CLASS="QUOTE"
+>"+deanimate-gifs"</SPAN
+></A
+>
+ matches, then <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> passes the raw data through
+ to the client browser as it becomes available.
+ </P
+></LI
+><LI
+><P
+> As the browser receives the now (probably filtered) page content, it
+ reads and then requests any URLs that may be embedded within the page
+ source, e.g. ad images, stylesheets, JavaScript, other HTML documents (e.g.
+ frames), sounds, etc. For each of these objects, the browser issues a new
+ request. And each such request is in turn processed as above. Note that a
+ complex web page may have many such embedded URLs.
+ </P
+></LI
+></UL
+></P
+></DIV
+><DIV
+CLASS="SECT2"
+><H2
+CLASS="SECT2"
+><A
NAME="ACTIONSANAT"
->9.3. Anatomy of an Action</A
+>14.4. Anatomy of an Action</A
></H2
><P
> The way <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
-> applies <SPAN
+> applies
+ <A
+HREF="actions-file.html#ACTIONS"
+TARGET="_top"
+><SPAN
CLASS="QUOTE"
>"actions"</SPAN
+></A
>
- and <SPAN
+ and <A
+HREF="actions-file.html#FILTER"
+TARGET="_top"
+><SPAN
CLASS="QUOTE"
>"filters"</SPAN
-> to any given URL can be complex, and not always so
+></A
+>
+ to any given URL can be complex, and not always so
easy to understand what is happening. And sometimes we need to be able to
<I
CLASS="EMPHASIS"
CLASS="APPLICATION"
>Privoxy</SPAN
> is doing
- is causing us a problem inadvertantly. It can be a little daunting to look at
+ is causing us a problem inadvertently. It can be a little daunting to look at
the actions and filters files themselves, since they tend to be filled with
<SPAN
CLASS="QUOTE"
>"regular expressions"</SPAN
> whose consequences are not always
- so obvious. <SPAN
+ so obvious. </P
+><P
+> One quick test to see if <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
-> provides the
+> is causing a problem
+ or not, is to disable it temporarily. This should be the first troubleshooting
+ step. See <A
+HREF="appendix.html#BOOKMARKLETS"
+>the Bookmarklets</A
+> section on a quick
+ and easy way to do this (be sure to flush caches afterward!).</P
+><P
+> <SPAN
+CLASS="APPLICATION"
+>Privoxy</SPAN
+> also provides the
<A
HREF="http://config.privoxy.org/show-url-info"
TARGET="_top"
CLASS="APPLICATION"
>actions</SPAN
>
- are being applied to any given URL. This is a big help for troubleshooting.
- </P
+ are being applied to any given URL. This is a big help for troubleshooting.</P
><P
> First, enter one URL (or partial URL) at the prompt, and then
<SPAN
>Privoxy</SPAN
> will tell us
how the current configuration will handle it. This will not
- help with filtering effects from the <TT
+ help with filtering effects (i.e. the <A
+HREF="actions-file.html#FILTER"
+TARGET="_top"
+><SPAN
+CLASS="QUOTE"
+>"+filter"</SPAN
+></A
+> action) from
+ the <TT
CLASS="FILENAME"
>default.filter</TT
-> file! It
- also will not tell you about any other URLs that may be embedded within the
- URL you are testing. For instance, images such as ads are expressed as URLs
- within the raw page source of HTML pages. So you will only get info for the
- actual URL that is pasted into the prompt area -- not any sub-URLs. If you
- want to know about embedded URLs like ads, you will have to dig those out of
- the HTML source. Use your browser's <SPAN
-CLASS="QUOTE"
->"View Page Source"</SPAN
-> option
- for this. Or right click on the ad, and grab the URL.</P
-><P
-> Let's look at an example, <A
+> file since this is handled very
+ differently and not so easy to trap! It also will not tell you about any other
+ URLs that may be embedded within the URL you are testing. For instance, images
+ such as ads are expressed as URLs within the raw page source of HTML pages. So
+ you will only get info for the actual URL that is pasted into the prompt area
+ -- not any sub-URLs. If you want to know about embedded URLs like ads, you
+ will have to dig those out of the HTML source. Use your browser's <SPAN
+CLASS="QUOTE"
+>"View
+ Page Source"</SPAN
+> option for this. Or right click on the ad, and grab the
+ URL.</P
+><P
+> Let's try an example, <A
HREF="http://google.com"
TARGET="_top"
>google.com</A
>,
- one section at a time:</P
+ and look at it one section at a time:</P
><P
> <TABLE
BORDER="0"
><TD
><PRE
CLASS="SCREEN"
-> System default actions:
+> Matches for http://google.com:
- { -add-header -block -deanimate-gifs -downgrade -fast-redirects -filter
- -hide-forwarded -hide-from -hide-referer -hide-user-agent -image
- -image-blocker -limit-connect -no-compression -no-cookies-keep
- -no-cookies-read -no-cookies-set -no-popups -vanilla-wafer -wafer }
-
- </PRE
-></TD
-></TR
-></TABLE
-></P
-><P
-> This is the top section, and only tells us of the compiled in defaults. This
- is basically what <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> would do if there
- were not any <SPAN
-CLASS="QUOTE"
->"actions"</SPAN
-> defined, i.e. it does nothing. Every action
- is disabled. This is not particularly informative for our purposes here. OK,
- next section:</P
-><P
-> <TABLE
-BORDER="0"
-BGCOLOR="#E0E0E0"
-WIDTH="100%"
-><TR
-><TD
-><PRE
-CLASS="SCREEN"
-> Matches for http://google.com:
+--- File standard ---
+(no matches in this file)
- { -add-header -block +deanimate-gifs -downgrade +fast-redirects
- +filter{html-annoyances} +filter{js-annoyances} +filter{no-popups}
- +filter{webbugs} +filter{nimda} +filter{banners-by-size} +filter{hal}
- +filter{fun} +hide-forwarded +hide-from{block} +hide-referer{forge}
- -hide-user-agent -image +image-blocker{blank} +no-compression
- +no-cookies-keep -no-cookies-read -no-cookies-set +no-popups
- -vanilla-wafer -wafer }
- /
+--- File default ---
+
+{ -add-header -block +deanimate-gifs{last} -downgrade-http-version +fast-redirects
+ -filter{popups} -filter{fun} -filter{shockwave-flash} -filter{crude-parental}
+ +filter{html-annoyances} +filter{js-annoyances} +filter{content-cookies}
+ +filter{webbugs} +filter{refresh-tags} +filter{nimda} +filter{banners-by-size}
+ +hide-forwarded-for-headers +hide-from-header{block} +hide-referer{forge}
+ -hide-user-agent -handle-as-image +set-image-blocker{pattern} -limit-connect
+ +prevent-compression +session-cookies-only -prevent-reading-cookies
+ -prevent-setting-cookies -kill-popups -send-vanilla-wafer -send-wafer }
+/
- { -no-cookies-keep -no-cookies-read -no-cookies-set }
- .google.com
+ { -session-cookies-only }
+ .google.com
{ -fast-redirects }
- .google.com
+ .google.com
- </PRE
+--- File user ---
+(no matches in this file) </PRE
></TD
></TR
></TABLE
></P
><P
-> This is much more informative, and tells us how we have defined our
- <SPAN
+> This tells us how we have defined our
+ <A
+HREF="actions-file.html#ACTIONS"
+TARGET="_top"
+><SPAN
CLASS="QUOTE"
>"actions"</SPAN
->, and which ones match for our example,
- <SPAN
+></A
+>, and
+ which ones match for our example, <SPAN
CLASS="QUOTE"
>"google.com"</SPAN
->. The first grouping shows our default
- settings, which would apply to all URLs. If you look at your <SPAN
+>. The first listing
+ is any matches for the <TT
+CLASS="FILENAME"
+>standard.action</TT
+> file. No hits at
+ all here on <SPAN
+CLASS="QUOTE"
+>"standard"</SPAN
+>. Then next is <SPAN
+CLASS="QUOTE"
+>"default"</SPAN
+>, or
+ our <TT
+CLASS="FILENAME"
+>default.action</TT
+> file. The large, multi-line listing,
+ is how the actions are set to match for all URLs, i.e. our default settings.
+ If you look at your <SPAN
CLASS="QUOTE"
>"actions"</SPAN
->
- file, this would be the section just below the <SPAN
+> file, this would be the section
+ just below the <SPAN
CLASS="QUOTE"
>"aliases"</SPAN
-> section
- near the top. This applies to all URLs as signified by the single forward
- slash -- <SPAN
+> section near the top. This will apply to
+ all URLs as signified by the single forward slash at the end of the listing
+ -- <SPAN
CLASS="QUOTE"
>"/"</SPAN
->.
- </P
+>.</P
><P
-> These are the default actions we have enabled. But we can define additional
- actions that would be exceptions to these general rules, and then list
- specific URLs that these exceptions would apply to. Last match wins.
- Just below this then are two explict matches for <SPAN
+> But we can define additional actions that would be exceptions to these general
+ rules, and then list specific URLs (or patterns) that these exceptions would
+ apply to. Last match wins. Just below this then are two explicit matches for
+ <SPAN
CLASS="QUOTE"
>".google.com"</SPAN
->.
- The first is negating our various cookie blocking actions (i.e. we will allow
- cookies here). The second is allowing <SPAN
+>. The first is negating our previous cookie setting,
+ which was for <A
+HREF="actions-file.html#SESSION-COOKIES-ONLY"
+TARGET="_top"
+><SPAN
CLASS="QUOTE"
->"fast-redirects"</SPAN
->. Note
- that there is a leading dot here -- <SPAN
+>"+session-cookies-only"</SPAN
+></A
+>
+ (i.e. not persistent). So we will allow persistent cookies for google. The
+ second turns <I
+CLASS="EMPHASIS"
+>off</I
+> any
+ <A
+HREF="actions-file.html#FAST-REDIRECTS"
+TARGET="_top"
+><SPAN
+CLASS="QUOTE"
+>"+fast-redirects"</SPAN
+></A
+>
+ action, allowing this to take place unmolested. Note that there is a leading
+ dot here -- <SPAN
CLASS="QUOTE"
>".google.com"</SPAN
->. This will
- match any hosts and sub-domains, in the google.com domain also, such as
+>. This will match any hosts and
+ sub-domains, in the google.com domain also, such as
<SPAN
CLASS="QUOTE"
>"www.google.com"</SPAN
->. So, apparently, we have these actions defined
- somewhere in the lower part of our actions file, and
- <SPAN
+>. So, apparently, we have these two actions
+ defined somewhere in the lower part of our <TT
+CLASS="FILENAME"
+>default.action</TT
+>
+ file, and <SPAN
CLASS="QUOTE"
>"google.com"</SPAN
-> is referenced in these sections. </P
+> is referenced somewhere in these latter
+ sections.</P
><P
-> And now we pull it altogether in the bottom section and summarize how
+> Then, for our <TT
+CLASS="FILENAME"
+>user.action</TT
+> file, we again have no hits.</P
+><P
+> And finally we pull it all together in the bottom section and summarize how
<SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
-> is appying all its <SPAN
+> is applying all its <SPAN
CLASS="QUOTE"
>"actions"</SPAN
>
><PRE
CLASS="SCREEN"
> Final results:
-
- -add-header -block -deanimate-gifs -downgrade -fast-redirects
- +filter{html-annoyances} +filter{js-annoyances} +filter{no-popups}
- +filter{webbugs} +filter{nimda} +filter{banners-by-size} +filter{hal}
- +filter{fun} +hide-forwarded +hide-from{block} +hide-referer{forge}
- -hide-user-agent -image +image-blocker{blank} -limit-connect +no-compression
- -no-cookies-keep -no-cookies-read -no-cookies-set +no-popups -vanilla-wafer
- -wafer
-
- </PRE
+ -add-header -block +deanimate-gifs{last} -downgrade-http-version -fast-redirects
+ -filter{popups} -filter{fun} -filter{shockwave-flash} -filter{crude-parental}
+ +filter{html-annoyances} +filter{js-annoyances} +filter{content-cookies}
+ +filter{webbugs} +filter{refresh-tags} +filter{nimda} +filter{banners-by-size}
+ +hide-forwarded-for-headers +hide-from-header{block} +hide-referer{forge}
+ -hide-user-agent -handle-as-image +set-image-blocker{pattern} -limit-connect
+ +prevent-compression -session-cookies-only -prevent-reading-cookies
+ -prevent-setting-cookies -kill-popups -send-vanilla-wafer -send-wafer</PRE
></TD
></TR
></TABLE
></P
><P
+> Notice the only difference here to the previous listing, is to
+ <SPAN
+CLASS="QUOTE"
+>"fast-redirects"</SPAN
+> and <SPAN
+CLASS="QUOTE"
+>"session-cookies-only"</SPAN
+>.</P
+><P
> Now another example, <SPAN
CLASS="QUOTE"
>"ad.doubleclick.net"</SPAN
><TD
><PRE
CLASS="SCREEN"
-> { +block +image }
+> { +block +handle-as-image }
.ad.doubleclick.net
- { +block +image }
+ { +block +handle-as-image }
ad*.
- { +block +image }
- .doubleclick.net
-
- </PRE
+ { +block +handle-as-image }
+ .doubleclick.net</PRE
></TD
></TR
></TABLE
> We'll just show the interesting part here, the explicit matches. It is
matched three different times. Each as an <SPAN
CLASS="QUOTE"
->"+block +image"</SPAN
+>"+block +handle-as-image"</SPAN
>,
which is the expanded form of one of our aliases that had been defined as:
<SPAN
CLASS="QUOTE"
>"+imageblock"</SPAN
->. (<SPAN
+>. (<A
+HREF="actions-file.html#ALIASES"
+TARGET="_top"
+><SPAN
CLASS="QUOTE"
>"Aliases"</SPAN
-> are defined in the
- first section of the actions file and typically used to combine more
+></A
+> are defined in
+ the first section of the actions file and typically used to combine more
than one action.)</P
><P
> Any one of these would have done the trick and blocked this as an unwanted
CLASS="QUOTE"
>"ad.doubleclick.net"</SPAN
>
- is done here -- as both a <SPAN
+ is done here -- as both a <A
+HREF="actions-file.html#BLOCK"
+TARGET="_top"
+><SPAN
CLASS="QUOTE"
>"+block"</SPAN
-> <I
+></A
+>
+ <I
CLASS="EMPHASIS"
>and</I
-> an
- <SPAN
+> an
+ <A
+HREF="actions-file.html#HANDLE-AS-IMAGE"
+TARGET="_top"
+><SPAN
CLASS="QUOTE"
->"+image"</SPAN
->. The custom alias <SPAN
+>"+handle-as-image"</SPAN
+></A
+>.
+ The custom alias <SPAN
CLASS="QUOTE"
>"+imageblock"</SPAN
-> does this
- for us.</P
+> just simplifies the process and make
+ it more readable.</P
><P
> One last example. Let's try <SPAN
CLASS="QUOTE"
CLASS="SCREEN"
> Matches for http://www.rhapsodyk.net/adsl/HOWTO/:
- { -add-header -block +deanimate-gifs -downgrade +fast-redirects
- +filter{html-annoyances} +filter{js-annoyances} +filter{no-popups}
+ { -add-header -block +deanimate-gifs -downgrade-http-version +fast-redirects
+ +filter{html-annoyances} +filter{js-annoyances} +filter{kill-popups}
+filter{webbugs} +filter{nimda} +filter{banners-by-size} +filter{hal}
- +filter{fun} +hide-forwarded +hide-from{block} +hide-referer{forge}
- -hide-user-agent -image +image-blocker{blank} +no-compression
- +no-cookies-keep -no-cookies-read -no-cookies-set +no-popups
- -vanilla-wafer -wafer }
+ +filter{fun} +hide-forwarded-for-headers +hide-from-header{block}
+ +hide-referer{forge} -hide-user-agent -handle-as-image +set-image-blocker{blank}
+ +prevent-compression +session-cookies-only -prevent-setting-cookies
+ -prevent-reading-cookies +kill-popups -send-vanilla-wafer -send-wafer }
/
- { +block +image }
- /ads
-
- </PRE
+ { +block +handle-as-image }
+ /ads</PRE
></TD
></TR
></TABLE
>"/ads"</SPAN
>! But
we did not want this at all! Now we see why we get the blank page. We could
- now add a new action below this that explictly does <I
+ now add a new action below this that explicitly does <I
CLASS="EMPHASIS"
>not</I
>
- block (-block) pages with <SPAN
+ block (<SPAN
+CLASS="QUOTE"
+>"{-block}"</SPAN
+>) paths with <SPAN
CLASS="QUOTE"
>"adsl"</SPAN
->. There are various ways to
- handle such exceptions. Example:</P
+>. There are
+ various ways to handle such exceptions. Example:</P
><P
> <TABLE
BORDER="0"
><PRE
CLASS="SCREEN"
> { -block }
- /adsl
-
- </PRE
+ /adsl</PRE
></TD
></TR
></TABLE
><TD
><PRE
CLASS="SCREEN"
-> { -block }
- /adsl
-
- </PRE
+> { +block +handle-as-image }
+ /ads</PRE
></TD
></TR
></TABLE
.worldpay.com # for quietpc.com
.jungle.com
.scan.co.uk
- .forbes.com
-
- </PRE
+ .forbes.com</PRE
></TD
></TR
></TABLE
> that expands to
<SPAN
CLASS="QUOTE"
->"{ -filter -no-cookies -no-cookies-keep }"</SPAN
->. Or you could do
- your own exception to negate filtering: </P
+>"{ -filter -session-cookies-only }"</SPAN
+>.
+ Or you could do your own exception to negate filtering: </P
><P
> <TABLE
BORDER="0"
><PRE
CLASS="SCREEN"
> {-filter}
- .forbes.com
-
- </PRE
+ .forbes.com</PRE
></TD
></TR
></TABLE
></P
><P
+> This would probably be most appropriately put in <TT
+CLASS="FILENAME"
+>user.action</TT
+>,
+ for local site exceptions.</P
+><P
> <SPAN
CLASS="QUOTE"
>"{fragile}"</SPAN
projects / privoxy.git / blobdiff