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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 <pre class="prettyprint lang-config">AddHandler imap-file map</pre>
50 <p>Note that the following is still supported:</p>
52 <pre class="prettyprint lang-config">AddType application/x-httpd-imap map</pre>
55 <p>However, we are trying to phase out "magic MIME types" so we
56 are deprecating this method.</p>
58 <div id="quickview"><h3 class="directives">Directives</h3>
60 <li><img alt="" src="../images/down.gif" /> <a href="#imapbase">ImapBase</a></li>
61 <li><img alt="" src="../images/down.gif" /> <a href="#imapdefault">ImapDefault</a></li>
62 <li><img alt="" src="../images/down.gif" /> <a href="#imapmenu">ImapMenu</a></li>
66 <li><img alt="" src="../images/down.gif" /> <a href="#features">New Features</a></li>
67 <li><img alt="" src="../images/down.gif" /> <a href="#imapfile">Imagemap File</a></li>
68 <li><img alt="" src="../images/down.gif" /> <a href="#example">Example Mapfile</a></li>
69 <li><img alt="" src="../images/down.gif" /> <a href="#referencing">Referencing your mapfile</a></li>
70 </ul><ul class="seealso"><li><a href="#comments_section">Comments</a></li></ul></div>
71 <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
72 <div class="directive-section"><h2><a name="ImapBase" id="ImapBase">ImapBase</a> <a name="imapbase" id="imapbase">Directive</a></h2>
73 <table class="directive">
74 <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Default <code>base</code> for imagemap files</td></tr>
75 <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>ImapBase map|referer|<var>URL</var></code></td></tr>
76 <tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>ImapBase http://servername/</code></td></tr>
77 <tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
78 <tr><th><a href="directive-dict.html#Override">Override:</a></th><td>Indexes</td></tr>
79 <tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
80 <tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_imagemap</td></tr>
82 <p>The <code class="directive">ImapBase</code> directive sets the default
83 <code>base</code> used in the imagemap files. Its value is
84 overridden by a <code>base</code> directive within the imagemap
85 file. If not present, the <code>base</code> defaults to
86 <code>http://<var>servername</var>/</code>.</p>
90 <li><code class="directive"><a href="../mod/core.html#usecanonicalname">UseCanonicalName</a></code></li>
93 <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
94 <div class="directive-section"><h2><a name="ImapDefault" id="ImapDefault">ImapDefault</a> <a name="imapdefault" id="imapdefault">Directive</a></h2>
95 <table class="directive">
96 <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Default action when an imagemap is called with coordinates
97 that are not explicitly mapped</td></tr>
98 <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>ImapDefault error|nocontent|map|referer|<var>URL</var></code></td></tr>
99 <tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>ImapDefault nocontent</code></td></tr>
100 <tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
101 <tr><th><a href="directive-dict.html#Override">Override:</a></th><td>Indexes</td></tr>
102 <tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
103 <tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_imagemap</td></tr>
105 <p>The <code class="directive">ImapDefault</code> directive sets the default
106 <code>default</code> used in the imagemap files. Its value is
107 overridden by a <code>default</code> directive within the
108 imagemap file. If not present, the <code>default</code> action
109 is <code>nocontent</code>, which means that a <code>204 No
110 Content</code> is sent to the client. In this case, the client
111 should continue to display the original page.</p>
114 <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
115 <div class="directive-section"><h2><a name="ImapMenu" id="ImapMenu">ImapMenu</a> <a name="imapmenu" id="imapmenu">Directive</a></h2>
116 <table class="directive">
117 <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Action if no coordinates are given when calling
118 an imagemap</td></tr>
119 <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>ImapMenu none|formatted|semiformatted|unformatted</code></td></tr>
120 <tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>ImapMenu formatted</code></td></tr>
121 <tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
122 <tr><th><a href="directive-dict.html#Override">Override:</a></th><td>Indexes</td></tr>
123 <tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
124 <tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_imagemap</td></tr>
126 <p>The <code class="directive">ImapMenu</code> directive determines the
127 action taken if an imagemap file is called without valid
131 <dt><code>none</code></dt>
132 <dd>If ImapMenu is <code>none</code>, no menu is generated,
133 and the <code>default</code> action is performed.</dd>
135 <dt><code>formatted</code></dt>
136 <dd>A <code>formatted</code> menu is the simplest menu.
137 Comments in the imagemap file are ignored. A level one header
138 is printed, then an hrule, then the links each on a separate
139 line. The menu has a consistent, plain look close to that of
140 a directory listing.</dd>
142 <dt><code>semiformatted</code></dt>
143 <dd>In the <code>semiformatted</code> menu, comments are
144 printed where they occur in the imagemap file. Blank lines
145 are turned into HTML breaks. No header or hrule is printed,
146 but otherwise the menu is the same as a
147 <code>formatted</code> menu.</dd>
149 <dt><code>unformatted</code></dt>
150 <dd>Comments are printed, blank lines are ignored. Nothing is
151 printed that does not appear in the imagemap file. All breaks
152 and headers must be included as comments in the imagemap
153 file. This gives you the most flexibility over the appearance
154 of your menus, but requires you to treat your map files as
155 HTML instead of plaintext.</dd>
159 <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
160 <div class="section">
161 <h2><a name="features" id="features">New Features</a></h2>
163 <p>The imagemap module adds some new features that were not
164 possible with previously distributed imagemap programs.</p>
167 <li>URL references relative to the Referer: information.</li>
169 <li>Default <code><base></code> assignment through a new map
170 directive <code>base</code>.</li>
172 <li>No need for <code>imagemap.conf</code> file.</li>
174 <li>Point references.</li>
176 <li>Configurable generation of imagemap menus.</li>
178 </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
179 <div class="section">
180 <h2><a name="imapfile" id="imapfile">Imagemap File</a></h2>
182 <p>The lines in the imagemap files can have one of several
185 <div class="example"><p><code>
186 directive value [<var>x</var>,<var>y</var> ...]<br />
187 directive value "<var>Menu text</var>" [<var>x</var>,<var>y</var>
189 directive value <var>x</var>,<var>y</var> ... "<var>Menu text</var>"
192 <p>The directive is one of <code>base</code>,
193 <code>default</code>, <code>poly</code>, <code>circle</code>,
194 <code>rect</code>, or <code>point</code>. The value is an
195 absolute or relative URL, or one of the special values listed
196 below. The coordinates are <code><var>x</var>,<var>y</var></code>
197 pairs separated by whitespace. The quoted text is used as the text of
198 the link if a imagemap menu is generated. Lines beginning with '#' are
201 <h3><a name="imapfile.directives" id="imapfile.directives">Imagemap File Directives</a></h3>
202 <p>There are six directives allowed in the imagemap file. The
203 directives can come in any order, but are processed in the
204 order they are found in the imagemap file.</p>
207 <dt><code>base</code> Directive</dt>
209 <dd><p>Has the effect of <code><base href="<var>value</var>">
210 </code>. The non-absolute URLs of the map-file are taken relative
211 to this value. The <code>base</code> directive overrides
212 <code class="directive"><a href="#imapbase">ImapBase</a></code> as set in a
213 <code>.htaccess</code> file or in the server configuration files.
214 In the absence of an <code class="directive">ImapBase</code> configuration
215 directive, <code>base</code> defaults to
216 <code>http://server_name/</code>.</p>
217 <p><code>base_uri</code> is synonymous with <code>base</code>.
218 Note that a trailing slash on the URL is significant.</p></dd>
220 <dt><code>default</code> Directive</dt>
222 <dd>The action taken if the coordinates given do not fit any
223 of the <code>poly</code>, <code>circle</code> or
224 <code>rect</code> directives, and there are no
225 <code>point</code> directives. Defaults to <code>nocontent</code>
226 in the absence of an <code class="directive"><a href="#imapdefault">ImapDefault</a></code> configuration setting, causing a status
227 code of <code>204 No Content</code> to be returned. The client
228 should keep the same page displayed.</dd>
230 <dt><code>poly</code> Directive</dt>
232 <dd>Takes three to one-hundred points, and is obeyed if the
233 user selected coordinates fall within the polygon defined by
236 <dt><code>circle</code></dt>
238 <dd>Takes the center coordinates of a circle and a point on
239 the circle. Is obeyed if the user selected point is with the
242 <dt><code>rect</code> Directive</dt>
244 <dd>Takes the coordinates of two opposing corners of a
245 rectangle. Obeyed if the point selected is within this
248 <dt><code>point</code> Directive</dt>
250 <dd>Takes a single point. The point directive closest to the
251 user selected point is obeyed if no other directives are
252 satisfied. Note that <code>default</code> will not be
253 followed if a <code>point</code> directive is present and
254 valid coordinates are given.</dd>
258 <h3><a name="imapfile.values" id="imapfile.values">Values</a></h3>
260 <p>The values for each of the directives can be any of the
266 <dd><p>The URL can be relative or absolute URL. Relative URLs
267 can contain '..' syntax and will be resolved relative to the
268 <code>base</code> value.</p>
269 <p><code>base</code> itself will not be resolved according to the
270 current value. A statement <code>base mailto:</code> will
271 work properly, though.</p></dd>
273 <dt><code>map</code></dt>
275 <dd>Equivalent to the URL of the imagemap file itself. No
276 coordinates are sent with this, so a menu will be generated
277 unless <code class="directive"><a href="#imapmenu">ImapMenu</a></code> is set to
278 <code>none</code>.</dd>
280 <dt><code>menu</code></dt>
281 <dd>Synonymous with <code>map</code>.</dd>
283 <dt><code>referer</code></dt>
285 <dd>Equivalent to the URL of the referring document. Defaults
286 to <code>http://servername/</code> if no <code>Referer:</code>
287 header was present.</dd>
289 <dt><code>nocontent</code></dt>
291 <dd>Sends a status code of <code>204 No Content</code>,
292 telling the client to keep the same page displayed. Valid for
293 all but <code>base</code>.</dd>
295 <dt><code>error</code></dt>
297 <dd>Fails with a <code>500 Server Error</code>. Valid for all
298 but <code>base</code>, but sort of silly for anything but
299 <code>default</code>.</dd>
303 <h3><a name="imapfile.coords" id="imapfile.coords">Coordinates</a></h3>
306 <dt><code>0,0 200,200</code></dt>
308 <dd>A coordinate consists of an <var>x</var> and a <var>y</var>
309 value separated by a comma. The coordinates are separated
310 from each other by whitespace. To accommodate the way Lynx
311 handles imagemaps, should a user select the coordinate
312 <code>0,0</code>, it is as if no coordinate had been
318 <h3><a name="imapfile.quotedtext" id="imapfile.quotedtext">Quoted Text</a></h3>
321 <dt><code>"<var>Menu Text</var>"</code></dt>
323 <dd><p>After the value or after the coordinates, the line
324 optionally may contain text within double quotes. This string
325 is used as the text for the link if a menu is
328 <div class="example"><p><code>
329 <a href="http://example.com/"><var>Menu text</var></a>
332 <p>If no quoted text is present, the name of the link will be
333 used as the text:</p>
335 <div class="example"><p><code>
336 <a href="http://example.com/">http://example.com</a>
339 <p>If you want to use double quotes within this text, you have to
340 write them as <code>&quot;</code>.</p></dd>
344 </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
345 <div class="section">
346 <h2><a name="example" id="example">Example Mapfile</a></h2>
348 <div class="example"><p><code>
349 #Comments are printed in a 'formatted' or 'semiformatted' menu.<br />
350 #And can contain html tags. <hr><br />
352 poly map "Could I have a menu, please?" 0,0 0,10 10,10 10,0<br />
353 rect .. 0,0 77,27 "the directory of the referer"<br />
354 circle http://www.inetnebr.example.com/lincoln/feedback/ 195,0 305,27<br />
355 rect another_file "in same directory as referer" 306,0 419,27<br />
356 point http://www.zyzzyva.example.com/ 100,100<br />
357 point http://www.tripod.example.com/ 200,200<br />
358 rect mailto:nate@tripod.example.com 100,150 200,0 "Bugs?"<br />
361 </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
362 <div class="section">
363 <h2><a name="referencing" id="referencing">Referencing your mapfile</a></h2>
365 <div class="example"><h3>HTML example</h3><p><code>
366 <a href="/maps/imagemap1.map"><br />
367 <span class="indent">
368 <img ismap src="/images/imagemap1.gif"><br />
373 <div class="example"><h3>XHTML example</h3><p><code>
374 <a href="/maps/imagemap1.map"><br />
375 <span class="indent">
376 <img ismap="ismap" src="/images/imagemap1.gif" /><br />
383 <div class="bottomlang">
384 <p><span>Available Languages: </span><a href="../en/mod/mod_imagemap.html" title="English"> en </a> |
385 <a href="../ko/mod/mod_imagemap.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p>
386 </div><div class="top"><a href="#page-header"><img src="../images/up.gif" alt="top" /></a></div><div class="section"><h2><a id="comments_section" name="comments_section">Comments</a></h2><div class="warning"><strong>Notice:</strong><br />This is not a Q&A section. Comments placed here should be pointed towards suggestions on improving the documentation or server, and may be removed again by our moderators if they are either implemented or considered invalid/off-topic. Questions on how to manage the Apache HTTP Server should be directed at either our IRC channel, #httpd, on Freenode, or sent to our <a href="http://httpd.apache.org/lists.html">mailing lists</a>.</div>
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