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19 <p class="apache">Apache HTTP Server Version 2.5</p>
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24 <div id="page-content">
25 <div id="preamble"><h1>Apache Module mod_imagemap</h1>
27 <p><span>Available Languages: </span><a href="../en/mod/mod_imagemap.html" title="English"> en </a> |
28 <a href="../ko/mod/mod_imagemap.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p>
30 <table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Server-side imagemap processing</td></tr>
31 <tr><th><a href="module-dict.html#Status">Status:</a></th><td>Base</td></tr>
32 <tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:</a></th><td>imagemap_module</td></tr>
33 <tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_imagemap.c</td></tr></table>
36 <p>This module processes <code>.map</code> files, thereby
37 replacing the functionality of the <code>imagemap</code> CGI
38 program. Any directory or document type configured to use the
39 handler <code>imap-file</code> (using either
40 <code class="directive"><a href="../mod/mod_mime.html#addhandler">AddHandler</a></code> or
41 <code class="directive"><a href="../mod/core.html#sethandler">SetHandler</a></code>)
42 will be processed by this module.</p>
44 <p>The following directive will activate files ending with
45 <code>.map</code> as imagemap files:</p>
47 <div class="example"><p><code>AddHandler imap-file map</code></p></div>
49 <p>Note that the following is still supported:</p>
51 <div class="example"><p><code>AddType application/x-httpd-imap map</code></p></div>
53 <p>However, we are trying to phase out "magic MIME types" so we
54 are deprecating this method.</p>
56 <div id="quickview"><h3 class="directives">Directives</h3>
58 <li><img alt="" src="../images/down.gif" /> <a href="#imapbase">ImapBase</a></li>
59 <li><img alt="" src="../images/down.gif" /> <a href="#imapdefault">ImapDefault</a></li>
60 <li><img alt="" src="../images/down.gif" /> <a href="#imapmenu">ImapMenu</a></li>
64 <li><img alt="" src="../images/down.gif" /> <a href="#features">New Features</a></li>
65 <li><img alt="" src="../images/down.gif" /> <a href="#imapfile">Imagemap File</a></li>
66 <li><img alt="" src="../images/down.gif" /> <a href="#example">Example Mapfile</a></li>
67 <li><img alt="" src="../images/down.gif" /> <a href="#referencing">Referencing your mapfile</a></li>
69 <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
71 <h2><a name="features" id="features">New Features</a></h2>
73 <p>The imagemap module adds some new features that were not
74 possible with previously distributed imagemap programs.</p>
77 <li>URL references relative to the Referer: information.</li>
79 <li>Default <code><base></code> assignment through a new map
80 directive <code>base</code>.</li>
82 <li>No need for <code>imagemap.conf</code> file.</li>
84 <li>Point references.</li>
86 <li>Configurable generation of imagemap menus.</li>
88 </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
90 <h2><a name="imapfile" id="imapfile">Imagemap File</a></h2>
92 <p>The lines in the imagemap files can have one of several
95 <div class="example"><p><code>
96 directive value [<var>x</var>,<var>y</var> ...]<br />
97 directive value "<var>Menu text</var>" [<var>x</var>,<var>y</var>
99 directive value <var>x</var>,<var>y</var> ... "<var>Menu text</var>"
102 <p>The directive is one of <code>base</code>,
103 <code>default</code>, <code>poly</code>, <code>circle</code>,
104 <code>rect</code>, or <code>point</code>. The value is an
105 absolute or relative URL, or one of the special values listed
106 below. The coordinates are <code><var>x</var>,<var>y</var></code>
107 pairs separated by whitespace. The quoted text is used as the text of
108 the link if a imagemap menu is generated. Lines beginning with '#' are
111 <h3><a name="imapfile.directives" id="imapfile.directives">Imagemap File Directives</a></h3>
112 <p>There are six directives allowed in the imagemap file. The
113 directives can come in any order, but are processed in the
114 order they are found in the imagemap file.</p>
117 <dt><code>base</code> Directive</dt>
119 <dd><p>Has the effect of <code><base href="<var>value</var>">
120 </code>. The non-absolute URLs of the map-file are taken relative
121 to this value. The <code>base</code> directive overrides
122 <code class="directive"><a href="#imapbase">ImapBase</a></code> as set in a
123 <code>.htaccess</code> file or in the server configuration files.
124 In the absence of an <code class="directive">ImapBase</code> configuration
125 directive, <code>base</code> defaults to
126 <code>http://server_name/</code>.</p>
127 <p><code>base_uri</code> is synonymous with <code>base</code>.
128 Note that a trailing slash on the URL is significant.</p></dd>
130 <dt><code>default</code> Directive</dt>
132 <dd>The action taken if the coordinates given do not fit any
133 of the <code>poly</code>, <code>circle</code> or
134 <code>rect</code> directives, and there are no
135 <code>point</code> directives. Defaults to <code>nocontent</code>
136 in the absence of an <code class="directive"><a href="#imapdefault">ImapDefault</a></code> configuration setting, causing a status
137 code of <code>204 No Content</code> to be returned. The client
138 should keep the same page displayed.</dd>
140 <dt><code>poly</code> Directive</dt>
142 <dd>Takes three to one-hundred points, and is obeyed if the
143 user selected coordinates fall within the polygon defined by
146 <dt><code>circle</code></dt>
148 <dd>Takes the center coordinates of a circle and a point on
149 the circle. Is obeyed if the user selected point is with the
152 <dt><code>rect</code> Directive</dt>
154 <dd>Takes the coordinates of two opposing corners of a
155 rectangle. Obeyed if the point selected is within this
158 <dt><code>point</code> Directive</dt>
160 <dd>Takes a single point. The point directive closest to the
161 user selected point is obeyed if no other directives are
162 satisfied. Note that <code>default</code> will not be
163 followed if a <code>point</code> directive is present and
164 valid coordinates are given.</dd>
168 <h3><a name="imapfile.values" id="imapfile.values">Values</a></h3>
170 <p>The values for each of the directives can be any of the
176 <dd><p>The URL can be relative or absolute URL. Relative URLs
177 can contain '..' syntax and will be resolved relative to the
178 <code>base</code> value.</p>
179 <p><code>base</code> itself will not be resolved according to the
180 current value. A statement <code>base mailto:</code> will
181 work properly, though.</p></dd>
183 <dt><code>map</code></dt>
185 <dd>Equivalent to the URL of the imagemap file itself. No
186 coordinates are sent with this, so a menu will be generated
187 unless <code class="directive"><a href="#imapmenu">ImapMenu</a></code> is set to
188 <code>none</code>.</dd>
190 <dt><code>menu</code></dt>
191 <dd>Synonymous with <code>map</code>.</dd>
193 <dt><code>referer</code></dt>
195 <dd>Equivalent to the URL of the referring document. Defaults
196 to <code>http://servername/</code> if no <code>Referer:</code>
197 header was present.</dd>
199 <dt><code>nocontent</code></dt>
201 <dd>Sends a status code of <code>204 No Content</code>,
202 telling the client to keep the same page displayed. Valid for
203 all but <code>base</code>.</dd>
205 <dt><code>error</code></dt>
207 <dd>Fails with a <code>500 Server Error</code>. Valid for all
208 but <code>base</code>, but sort of silly for anything but
209 <code>default</code>.</dd>
213 <h3><a name="imapfile.coords" id="imapfile.coords">Coordinates</a></h3>
216 <dt><code>0,0 200,200</code></dt>
218 <dd>A coordinate consists of an <var>x</var> and a <var>y</var>
219 value separated by a comma. The coordinates are separated
220 from each other by whitespace. To accommodate the way Lynx
221 handles imagemaps, should a user select the coordinate
222 <code>0,0</code>, it is as if no coordinate had been
228 <h3><a name="imapfile.quotedtext" id="imapfile.quotedtext">Quoted Text</a></h3>
231 <dt><code>"<var>Menu Text</var>"</code></dt>
233 <dd><p>After the value or after the coordinates, the line
234 optionally may contain text within double quotes. This string
235 is used as the text for the link if a menu is
238 <div class="example"><p><code>
239 <a href="http://example.com/"><var>Menu text</var></a>
242 <p>If no quoted text is present, the name of the link will be
243 used as the text:</p>
245 <div class="example"><p><code>
246 <a href="http://example.com/">http://example.com</a>
249 <p>If you want to use double quotes within this text, you have to
250 write them as <code>&quot;</code>.</p></dd>
254 </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
255 <div class="section">
256 <h2><a name="example" id="example">Example Mapfile</a></h2>
258 <div class="example"><p><code>
259 #Comments are printed in a 'formatted' or 'semiformatted' menu.<br />
260 #And can contain html tags. <hr><br />
262 poly map "Could I have a menu, please?" 0,0 0,10 10,10 10,0<br />
263 rect .. 0,0 77,27 "the directory of the referer"<br />
264 circle http://www.inetnebr.example.com/lincoln/feedback/ 195,0 305,27<br />
265 rect another_file "in same directory as referer" 306,0 419,27<br />
266 point http://www.zyzzyva.example.com/ 100,100<br />
267 point http://www.tripod.example.com/ 200,200<br />
268 rect mailto:nate@tripod.example.com 100,150 200,0 "Bugs?"<br />
271 </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
272 <div class="section">
273 <h2><a name="referencing" id="referencing">Referencing your mapfile</a></h2>
275 <div class="example"><h3>HTML example</h3><p><code>
276 <a href="/maps/imagemap1.map"><br />
277 <span class="indent">
278 <img ismap src="/images/imagemap1.gif"><br />
283 <div class="example"><h3>XHTML example</h3><p><code>
284 <a href="/maps/imagemap1.map"><br />
285 <span class="indent">
286 <img ismap="ismap" src="/images/imagemap1.gif" /><br />
292 <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
293 <div class="directive-section"><h2><a name="ImapBase" id="ImapBase">ImapBase</a> <a name="imapbase" id="imapbase">Directive</a></h2>
294 <table class="directive">
295 <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Default <code>base</code> for imagemap files</td></tr>
296 <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>ImapBase map|referer|<var>URL</var></code></td></tr>
297 <tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>ImapBase http://servername/</code></td></tr>
298 <tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
299 <tr><th><a href="directive-dict.html#Override">Override:</a></th><td>Indexes</td></tr>
300 <tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
301 <tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_imagemap</td></tr>
303 <p>The <code class="directive">ImapBase</code> directive sets the default
304 <code>base</code> used in the imagemap files. Its value is
305 overridden by a <code>base</code> directive within the imagemap
306 file. If not present, the <code>base</code> defaults to
307 <code>http://<var>servername</var>/</code>.</p>
311 <li><code class="directive"><a href="../mod/core.html#usecanonicalname">UseCanonicalName</a></code></li>
314 <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
315 <div class="directive-section"><h2><a name="ImapDefault" id="ImapDefault">ImapDefault</a> <a name="imapdefault" id="imapdefault">Directive</a></h2>
316 <table class="directive">
317 <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Default action when an imagemap is called with coordinates
318 that are not explicitly mapped</td></tr>
319 <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>ImapDefault error|nocontent|map|referer|<var>URL</var></code></td></tr>
320 <tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>ImapDefault nocontent</code></td></tr>
321 <tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
322 <tr><th><a href="directive-dict.html#Override">Override:</a></th><td>Indexes</td></tr>
323 <tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
324 <tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_imagemap</td></tr>
326 <p>The <code class="directive">ImapDefault</code> directive sets the default
327 <code>default</code> used in the imagemap files. Its value is
328 overridden by a <code>default</code> directive within the
329 imagemap file. If not present, the <code>default</code> action
330 is <code>nocontent</code>, which means that a <code>204 No
331 Content</code> is sent to the client. In this case, the client
332 should continue to display the original page.</p>
335 <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
336 <div class="directive-section"><h2><a name="ImapMenu" id="ImapMenu">ImapMenu</a> <a name="imapmenu" id="imapmenu">Directive</a></h2>
337 <table class="directive">
338 <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Action if no coordinates are given when calling
339 an imagemap</td></tr>
340 <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>ImapMenu none|formatted|semiformatted|unformatted</code></td></tr>
341 <tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
342 <tr><th><a href="directive-dict.html#Override">Override:</a></th><td>Indexes</td></tr>
343 <tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
344 <tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_imagemap</td></tr>
346 <p>The <code class="directive">ImapMenu</code> directive determines the
347 action taken if an imagemap file is called without valid
351 <dt><code>none</code></dt>
352 <dd>If ImapMenu is <code>none</code>, no menu is generated,
353 and the <code>default</code> action is performed.</dd>
355 <dt><code>formatted</code></dt>
356 <dd>A <code>formatted</code> menu is the simplest menu.
357 Comments in the imagemap file are ignored. A level one header
358 is printed, then an hrule, then the links each on a separate
359 line. The menu has a consistent, plain look close to that of
360 a directory listing.</dd>
362 <dt><code>semiformatted</code></dt>
363 <dd>In the <code>semiformatted</code> menu, comments are
364 printed where they occur in the imagemap file. Blank lines
365 are turned into HTML breaks. No header or hrule is printed,
366 but otherwise the menu is the same as a
367 <code>formatted</code> menu.</dd>
369 <dt><code>unformatted</code></dt>
370 <dd>Comments are printed, blank lines are ignored. Nothing is
371 printed that does not appear in the imagemap file. All breaks
372 and headers must be included as comments in the imagemap
373 file. This gives you the most flexibility over the appearance
374 of your menus, but requires you to treat your map files as
375 HTML instead of plaintext.</dd>
380 <div class="bottomlang">
381 <p><span>Available Languages: </span><a href="../en/mod/mod_imagemap.html" title="English"> en </a> |
382 <a href="../ko/mod/mod_imagemap.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p>
383 </div><div id="footer">
384 <p class="apache">Copyright 2012 The Apache Software Foundation.<br />Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p>
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