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26 <div id="page-content">
27 <div id="preamble"><h1>Apache Module mod_imagemap</h1>
29 <p><span>Available Languages: </span><a href="../en/mod/mod_imagemap.html" title="English"> en </a> |
30 <a href="../ko/mod/mod_imagemap.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p>
32 <table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Server-side imagemap processing</td></tr>
33 <tr><th><a href="module-dict.html#Status">Status:</a></th><td>Base</td></tr>
34 <tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:</a></th><td>imagemap_module</td></tr>
35 <tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_imagemap.c</td></tr></table>
38 <p>This module processes <code>.map</code> files, thereby
39 replacing the functionality of the <code>imagemap</code> CGI
40 program. Any directory or document type configured to use the
41 handler <code>imap-file</code> (using either
42 <code class="directive"><a href="../mod/mod_mime.html#addhandler">AddHandler</a></code> or
43 <code class="directive"><a href="../mod/core.html#sethandler">SetHandler</a></code>)
44 will be processed by this module.</p>
46 <p>The following directive will activate files ending with
47 <code>.map</code> as imagemap files:</p>
49 <pre class="prettyprint lang-config">AddHandler imap-file map</pre>
52 <p>Note that the following is still supported:</p>
54 <pre class="prettyprint lang-config">AddType application/x-httpd-imap map</pre>
57 <p>However, we are trying to phase out "magic MIME types" so we
58 are deprecating this method.</p>
60 <div id="quickview"><h3>Topics</h3>
62 <li><img alt="" src="../images/down.gif" /> <a href="#features">New Features</a></li>
63 <li><img alt="" src="../images/down.gif" /> <a href="#imapfile">Imagemap File</a></li>
64 <li><img alt="" src="../images/down.gif" /> <a href="#example">Example Mapfile</a></li>
65 <li><img alt="" src="../images/down.gif" /> <a href="#referencing">Referencing your mapfile</a></li>
66 </ul><h3 class="directives">Directives</h3>
68 <li><img alt="" src="../images/down.gif" /> <a href="#imapbase">ImapBase</a></li>
69 <li><img alt="" src="../images/down.gif" /> <a href="#imapdefault">ImapDefault</a></li>
70 <li><img alt="" src="../images/down.gif" /> <a href="#imapmenu">ImapMenu</a></li>
72 <h3>Bugfix checklist</h3><ul class="seealso"><li><a href="https://www.apache.org/dist/httpd/CHANGES_2.4">httpd changelog</a></li><li><a href="https://bz.apache.org/bugzilla/buglist.cgi?bug_status=__open__&list_id=144532&product=Apache%20httpd-2&query_format=specific&order=changeddate%20DESC%2Cpriority%2Cbug_severity&component=mod_imagemap">Known issues</a></li><li><a href="https://bz.apache.org/bugzilla/enter_bug.cgi?product=Apache%20httpd-2&component=mod_imagemap">Report a bug</a></li></ul><h3>See also</h3>
74 <li><a href="#comments_section">Comments</a></li></ul></div>
75 <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
77 <h2><a name="features" id="features">New Features</a></h2>
79 <p>The imagemap module adds some new features that were not
80 possible with previously distributed imagemap programs.</p>
83 <li>URL references relative to the Referer: information.</li>
85 <li>Default <code><base></code> assignment through a new map
86 directive <code>base</code>.</li>
88 <li>No need for <code>imagemap.conf</code> file.</li>
90 <li>Point references.</li>
92 <li>Configurable generation of imagemap menus.</li>
94 </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
96 <h2><a name="imapfile" id="imapfile">Imagemap File</a></h2>
98 <p>The lines in the imagemap files can have one of several
101 <div class="example"><p><code>
102 directive value [<var>x</var>,<var>y</var> ...]<br />
103 directive value "<var>Menu text</var>" [<var>x</var>,<var>y</var>
105 directive value <var>x</var>,<var>y</var> ... "<var>Menu text</var>"
108 <p>The directive is one of <code>base</code>,
109 <code>default</code>, <code>poly</code>, <code>circle</code>,
110 <code>rect</code>, or <code>point</code>. The value is an
111 absolute or relative URL, or one of the special values listed
112 below. The coordinates are <code><var>x</var>,<var>y</var></code>
113 pairs separated by whitespace. The quoted text is used as the text of
114 the link if a imagemap menu is generated. Lines beginning with '#' are
117 <h3><a name="imapfile.directives" id="imapfile.directives">Imagemap File Directives</a></h3>
118 <p>There are six directives allowed in the imagemap file. The
119 directives can come in any order, but are processed in the
120 order they are found in the imagemap file.</p>
123 <dt><code>base</code> Directive</dt>
125 <dd><p>Has the effect of <code><base href="<var>value</var>">
126 </code>. The non-absolute URLs of the map-file are taken relative
127 to this value. The <code>base</code> directive overrides
128 <code class="directive"><a href="#imapbase">ImapBase</a></code> as set in a
129 <code>.htaccess</code> file or in the server configuration files.
130 In the absence of an <code class="directive">ImapBase</code> configuration
131 directive, <code>base</code> defaults to
132 <code>http://server_name/</code>.</p>
133 <p><code>base_uri</code> is synonymous with <code>base</code>.
134 Note that a trailing slash on the URL is significant.</p></dd>
136 <dt><code>default</code> Directive</dt>
138 <dd>The action taken if the coordinates given do not fit any
139 of the <code>poly</code>, <code>circle</code> or
140 <code>rect</code> directives, and there are no
141 <code>point</code> directives. Defaults to <code>nocontent</code>
142 in the absence of an <code class="directive"><a href="#imapdefault">ImapDefault</a></code> configuration setting, causing a status
143 code of <code>204 No Content</code> to be returned. The client
144 should keep the same page displayed.</dd>
146 <dt><code>poly</code> Directive</dt>
148 <dd>Takes three to one-hundred points, and is obeyed if the
149 user selected coordinates fall within the polygon defined by
152 <dt><code>circle</code></dt>
154 <dd>Takes the center coordinates of a circle and a point on
155 the circle. Is obeyed if the user selected point is with the
158 <dt><code>rect</code> Directive</dt>
160 <dd>Takes the coordinates of two opposing corners of a
161 rectangle. Obeyed if the point selected is within this
164 <dt><code>point</code> Directive</dt>
166 <dd>Takes a single point. The point directive closest to the
167 user selected point is obeyed if no other directives are
168 satisfied. Note that <code>default</code> will not be
169 followed if a <code>point</code> directive is present and
170 valid coordinates are given.</dd>
174 <h3><a name="imapfile.values" id="imapfile.values">Values</a></h3>
176 <p>The values for each of the directives can be any of the
182 <dd><p>The URL can be relative or absolute URL. Relative URLs
183 can contain '..' syntax and will be resolved relative to the
184 <code>base</code> value.</p>
185 <p><code>base</code> itself will not be resolved according to the
186 current value. A statement <code>base mailto:</code> will
187 work properly, though.</p></dd>
189 <dt><code>map</code></dt>
191 <dd>Equivalent to the URL of the imagemap file itself. No
192 coordinates are sent with this, so a menu will be generated
193 unless <code class="directive"><a href="#imapmenu">ImapMenu</a></code> is set to
194 <code>none</code>.</dd>
196 <dt><code>menu</code></dt>
197 <dd>Synonymous with <code>map</code>.</dd>
199 <dt><code>referer</code></dt>
201 <dd>Equivalent to the URL of the referring document. Defaults
202 to <code>http://servername/</code> if no <code>Referer:</code>
203 header was present.</dd>
205 <dt><code>nocontent</code></dt>
207 <dd>Sends a status code of <code>204 No Content</code>,
208 telling the client to keep the same page displayed. Valid for
209 all but <code>base</code>.</dd>
211 <dt><code>error</code></dt>
213 <dd>Fails with a <code>500 Server Error</code>. Valid for all
214 but <code>base</code>, but sort of silly for anything but
215 <code>default</code>.</dd>
219 <h3><a name="imapfile.coords" id="imapfile.coords">Coordinates</a></h3>
222 <dt><code>0,0 200,200</code></dt>
224 <dd>A coordinate consists of an <var>x</var> and a <var>y</var>
225 value separated by a comma. The coordinates are separated
226 from each other by whitespace. To accommodate the way Lynx
227 handles imagemaps, should a user select the coordinate
228 <code>0,0</code>, it is as if no coordinate had been
234 <h3><a name="imapfile.quotedtext" id="imapfile.quotedtext">Quoted Text</a></h3>
237 <dt><code>"<var>Menu Text</var>"</code></dt>
239 <dd><p>After the value or after the coordinates, the line
240 optionally may contain text within double quotes. This string
241 is used as the text for the link if a menu is
244 <div class="example"><p><code>
245 <a href="http://example.com/"><var>Menu text</var></a>
248 <p>If no quoted text is present, the name of the link will be
249 used as the text:</p>
251 <div class="example"><p><code>
252 <a href="http://example.com/">http://example.com</a>
255 <p>If you want to use double quotes within this text, you have to
256 write them as <code>&quot;</code>.</p></dd>
260 </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
261 <div class="section">
262 <h2><a name="example" id="example">Example Mapfile</a></h2>
264 <div class="example"><p><code>
265 #Comments are printed in a 'formatted' or 'semiformatted' menu.<br />
266 #And can contain html tags. <hr><br />
268 poly map "Could I have a menu, please?" 0,0 0,10 10,10 10,0<br />
269 rect .. 0,0 77,27 "the directory of the referer"<br />
270 circle http://www.inetnebr.example.com/lincoln/feedback/ 195,0 305,27<br />
271 rect another_file "in same directory as referer" 306,0 419,27<br />
272 point http://www.zyzzyva.example.com/ 100,100<br />
273 point http://www.tripod.example.com/ 200,200<br />
274 rect mailto:nate@tripod.example.com 100,150 200,0 "Bugs?"<br />
277 </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
278 <div class="section">
279 <h2><a name="referencing" id="referencing">Referencing your mapfile</a></h2>
281 <div class="example"><h3>HTML example</h3><p><code>
282 <a href="/maps/imagemap1.map"><br />
283 <span class="indent">
284 <img ismap src="/images/imagemap1.gif"><br />
289 <div class="example"><h3>XHTML example</h3><p><code>
290 <a href="/maps/imagemap1.map"><br />
291 <span class="indent">
292 <img ismap="ismap" src="/images/imagemap1.gif" /><br />
298 <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
299 <div class="directive-section"><h2><a name="ImapBase" id="ImapBase">ImapBase</a> <a name="imapbase" id="imapbase">Directive</a></h2>
300 <table class="directive">
301 <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Default <code>base</code> for imagemap files</td></tr>
302 <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>ImapBase map|referer|<var>URL</var></code></td></tr>
303 <tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>ImapBase http://servername/</code></td></tr>
304 <tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
305 <tr><th><a href="directive-dict.html#Override">Override:</a></th><td>Indexes</td></tr>
306 <tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
307 <tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_imagemap</td></tr>
309 <p>The <code class="directive">ImapBase</code> directive sets the default
310 <code>base</code> used in the imagemap files. Its value is
311 overridden by a <code>base</code> directive within the imagemap
312 file. If not present, the <code>base</code> defaults to
313 <code>http://<var>servername</var>/</code>.</p>
317 <li><code class="directive"><a href="../mod/core.html#usecanonicalname">UseCanonicalName</a></code></li>
320 <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
321 <div class="directive-section"><h2><a name="ImapDefault" id="ImapDefault">ImapDefault</a> <a name="imapdefault" id="imapdefault">Directive</a></h2>
322 <table class="directive">
323 <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Default action when an imagemap is called with coordinates
324 that are not explicitly mapped</td></tr>
325 <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>ImapDefault error|nocontent|map|referer|<var>URL</var></code></td></tr>
326 <tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>ImapDefault nocontent</code></td></tr>
327 <tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
328 <tr><th><a href="directive-dict.html#Override">Override:</a></th><td>Indexes</td></tr>
329 <tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
330 <tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_imagemap</td></tr>
332 <p>The <code class="directive">ImapDefault</code> directive sets the default
333 <code>default</code> used in the imagemap files. Its value is
334 overridden by a <code>default</code> directive within the
335 imagemap file. If not present, the <code>default</code> action
336 is <code>nocontent</code>, which means that a <code>204 No
337 Content</code> is sent to the client. In this case, the client
338 should continue to display the original page.</p>
341 <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
342 <div class="directive-section"><h2><a name="ImapMenu" id="ImapMenu">ImapMenu</a> <a name="imapmenu" id="imapmenu">Directive</a></h2>
343 <table class="directive">
344 <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Action if no coordinates are given when calling
345 an imagemap</td></tr>
346 <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>ImapMenu none|formatted|semiformatted|unformatted</code></td></tr>
347 <tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>ImapMenu formatted</code></td></tr>
348 <tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
349 <tr><th><a href="directive-dict.html#Override">Override:</a></th><td>Indexes</td></tr>
350 <tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
351 <tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_imagemap</td></tr>
353 <p>The <code class="directive">ImapMenu</code> directive determines the
354 action taken if an imagemap file is called without valid
358 <dt><code>none</code></dt>
359 <dd>If ImapMenu is <code>none</code>, no menu is generated,
360 and the <code>default</code> action is performed.</dd>
362 <dt><code>formatted</code></dt>
363 <dd>A <code>formatted</code> menu is the simplest menu.
364 Comments in the imagemap file are ignored. A level one header
365 is printed, then an hrule, then the links each on a separate
366 line. The menu has a consistent, plain look close to that of
367 a directory listing.</dd>
369 <dt><code>semiformatted</code></dt>
370 <dd>In the <code>semiformatted</code> menu, comments are
371 printed where they occur in the imagemap file. Blank lines
372 are turned into HTML breaks. No header or hrule is printed,
373 but otherwise the menu is the same as a
374 <code>formatted</code> menu.</dd>
376 <dt><code>unformatted</code></dt>
377 <dd>Comments are printed, blank lines are ignored. Nothing is
378 printed that does not appear in the imagemap file. All breaks
379 and headers must be included as comments in the imagemap
380 file. This gives you the most flexibility over the appearance
381 of your menus, but requires you to treat your map files as
382 HTML instead of plaintext.</dd>
387 <div class="bottomlang">
388 <p><span>Available Languages: </span><a href="../en/mod/mod_imagemap.html" title="English"> en </a> |
389 <a href="../ko/mod/mod_imagemap.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p>
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