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42 <h1 class="SECT1"><a name="TEMPLATES" id="TEMPLATES">10. Privoxy's
43 Template Files</a></h1>
45 <p>All <span class="APPLICATION">Privoxy</span> built-in pages, i.e.
46 error pages such as the <a href="http://show-the-404-error.page" target=
47 "_top"><span class="QUOTE">"404 - No Such Domain"</span> error page</a>,
48 the <a href="http://ads.bannerserver.example.com/nasty-ads/sponsor.html"
49 target="_top"><span class="QUOTE">"BLOCKED"</span> page</a> and all pages
50 of its <a href="http://config.privoxy.org/" target="_top">web-based user
51 interface</a>, are generated from <span class="emphasis"><i class=
52 "EMPHASIS">templates</i></span>. (<span class=
53 "APPLICATION">Privoxy</span> must be running for the above links to work
56 <p>These templates are stored in a subdirectory of the <a href=
57 "config.html#CONFDIR">configuration directory</a> called <tt class=
58 "FILENAME">templates</tt>. On Unixish platforms, this is typically
59 <a href="file:///etc/privoxy/templates/" target="_top"><tt class=
60 "FILENAME">/etc/privoxy/templates/</tt></a>.</p>
62 <p>The templates are basically normal HTML files, but with place-holders
63 (called symbols or exports), which <span class=
64 "APPLICATION">Privoxy</span> fills at run time. It is possible to edit
65 the templates with a normal text editor, should you want to customize
66 them. (<span class="emphasis"><i class="EMPHASIS">Not recommended for the
67 casual user</i></span>). Should you create your own custom templates, you
68 should use the <tt class="FILENAME">config</tt> setting <a href=
69 "config.html#TEMPLDIR">templdir</a> to specify an alternate location, so
70 your templates do not get overwritten during upgrades.</p>
72 <p>Note that just like in configuration files, lines starting with
73 <tt class="LITERAL">#</tt> are ignored when the templates are filled
76 <p>The place-holders are of the form <tt class="LITERAL">@name@</tt>, and
77 you will find a list of available symbols, which vary from template to
78 template, in the comments at the start of each file. Note that these
79 comments are not always accurate, and that it's probably best to look at
80 the existing HTML code to find out which symbols are supported and what
81 they are filled in with.</p>
83 <p>A special application of this substitution mechanism is to make whole
84 blocks of HTML code disappear when a specific symbol is set. We use this
85 for many purposes, one of them being to include the beta warning in all
86 our user interface (CGI) pages when <span class=
87 "APPLICATION">Privoxy</span> is in an alpha or beta development
90 <table border="0" bgcolor="#E0E0E0" width="100%">
94 <!-- @if-unstable-start -->
96 ... beta warning HTML code goes here ...
98 <!-- if-unstable-end@ -->
104 <p>If the "unstable" symbol is set, everything in between and including
105 <tt class="LITERAL">@if-unstable-start</tt> and <tt class=
106 "LITERAL">if-unstable-end@</tt> will disappear, leaving nothing but an
109 <table border="0" bgcolor="#E0E0E0" width="100%">
119 <p>There's also an if-then-else construct and an <tt class=
120 "LITERAL">#include</tt> mechanism, but you'll sure find out if you are
121 inclined to edit the templates ;-)</p>
123 <p>All templates refer to a style located at <a href=
124 "http://config.privoxy.org/send-stylesheet" target="_top"><tt class=
125 "LITERAL">http://config.privoxy.org/send-stylesheet</tt></a>. This is, of
126 course, locally served by <span class="APPLICATION">Privoxy</span> and
127 the source for it can be found and edited in the <tt class=
128 "FILENAME">cgi-style.css</tt> template.</p>
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