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| author |   hongbotian <hongbo.tianhongbo@huawei.com> | 2015-11-30 03:10:21 -0500 |
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| committer | hongbotian <hongbo.tianhongbo@huawei.com> | 2015-11-30 03:10:21 -0500 |
| commit | c0b7206652b2852bc574694e7ba07ba1c2acdc00 (patch) | |
| tree | 5cb95cb0e19e03610525903df46279df2c3b7eb1 /rubbos/app/apache2/manual/mod/mod_ext_filter.html.en | |
| parent | b6d3d6e668b793220f2d3af1bc3e828553dc3fe6 (diff) | |
delete app
Change-Id: Id4c572809969ebe89e946e88063eaed262cff3f2
Signed-off-by: hongbotian <hongbo.tianhongbo@huawei.com>
Diffstat (limited to 'rubbos/app/apache2/manual/mod/mod_ext_filter.html.en')
| -rw-r--r-- | rubbos/app/apache2/manual/mod/mod_ext_filter.html.en | 373 |
1 files changed, 0 insertions, 373 deletions
diff --git a/rubbos/app/apache2/manual/mod/mod_ext_filter.html.en b/rubbos/app/apache2/manual/mod/mod_ext_filter.html.en deleted file mode 100644 index d57cec21..00000000 --- a/rubbos/app/apache2/manual/mod/mod_ext_filter.html.en +++ /dev/null @@ -1,373 +0,0 @@ -<?xml version="1.0" encoding="ISO-8859-1"?> -<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> -<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head><!-- - XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX - This file is generated from xml source: DO NOT EDIT - XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX - --> -<title>mod_ext_filter - Apache HTTP Server</title> -<link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" /> -<link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" /> -<link href="../style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" /> -<link href="../images/favicon.ico" rel="shortcut icon" /></head> -<body> -<div id="page-header"> -<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p> -<p class="apache">Apache HTTP Server Version 2.0</p> -<img alt="" src="../images/feather.gif" /></div> -<div class="up"><a href="./"><img title="<-" alt="<-" src="../images/left.gif" /></a></div> -<div id="path"> -<a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs/">Documentation</a> > <a href="../">Version 2.0</a> > <a href="./">Modules</a></div> -<div id="page-content"> -<div id="preamble"><h1>Apache Module mod_ext_filter</h1> -<div class="toplang"> -<p><span>Available Languages: </span><a href="../en/mod/mod_ext_filter.html" title="English"> en </a> | -<a href="../ko/mod/mod_ext_filter.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p> -</div> -<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Pass the response body through an external program before -delivery to the client</td></tr> -<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Extension</td></tr> -<tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:</a></th><td>ext_filter_module</td></tr> -<tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_ext_filter.c</td></tr></table> -<h3>Summary</h3> - - <p><code class="module"><a href="../mod/mod_ext_filter.html">mod_ext_filter</a></code> presents a simple and familiar - programming model for <a href="../filter.html">filters</a>. With - this module, a program which reads from stdin and writes to stdout - (i.e., a Unix-style filter command) can be a filter for - Apache. This filtering mechanism is much slower than using a - filter which is specially written for the Apache API and runs - inside of the Apache server process, but it does have the - following benefits:</p> - - <ul> - <li>the programming model is much simpler</li> - - <li>any programming/scripting language can be used, provided - that it allows the program to read from standard input and - write to standard output</li> - - <li>existing programs can be used unmodified as Apache - filters</li> - </ul> - - <p>Even when the performance characteristics are not suitable - for production use, <code class="module"><a href="../mod/mod_ext_filter.html">mod_ext_filter</a></code> can be used as - a prototype environment for filters.</p> - -</div> -<div id="quickview"><h3 class="directives">Directives</h3> -<ul id="toc"> -<li><img alt="" src="../images/down.gif" /> <a href="#extfilterdefine">ExtFilterDefine</a></li> -<li><img alt="" src="../images/down.gif" /> <a href="#extfilteroptions">ExtFilterOptions</a></li> -</ul> -<h3>Topics</h3> -<ul id="topics"> -<li><img alt="" src="../images/down.gif" /> <a href="#examples">Examples</a></li> -</ul><h3>See also</h3> -<ul class="seealso"> -<li><a href="../filter.html">Filters</a></li> -</ul></div> -<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> -<div class="section"> -<h2><a name="examples" id="examples">Examples</a></h2> - - <h3>Generating HTML from some other type of response</h3> - <div class="example"><p><code> - # mod_ext_filter directive to define a filter<br /> - # to HTML-ize text/c files using the external<br /> - # program /usr/bin/enscript, with the type of<br /> - # the result set to text/html<br /> - ExtFilterDefine c-to-html mode=output \<br /> - <span class="indent"> - intype=text/c outtype=text/html \<br /> - cmd="/usr/bin/enscript --color -W html -Ec -o - -"<br /> - </span> - <br /> - <Directory "/export/home/trawick/apacheinst/htdocs/c"><br /> - <span class="indent"> - # core directive to cause the new filter to<br /> - # be run on output<br /> - SetOutputFilter c-to-html<br /> - <br /> - # mod_mime directive to set the type of .c<br /> - # files to text/c<br /> - AddType text/c .c<br /> - <br /> - # mod_ext_filter directive to set the debug<br /> - # level just high enough to see a log message<br /> - # per request showing the configuration in force<br /> - ExtFilterOptions DebugLevel=1<br /> - </span> - </Directory> - </code></p></div> - - - <h3>Implementing a content encoding filter</h3> - <p>Note: this gzip example is just for the purposes of illustration. - Please refer to <code class="module"><a href="../mod/mod_deflate.html">mod_deflate</a></code> for a practical - implementation.</p> - - <div class="example"><p><code> - # mod_ext_filter directive to define the external filter<br /> - ExtFilterDefine gzip mode=output cmd=/bin/gzip<br /> - <br /> - <Location /gzipped><br /> - <span class="indent"> - # core directive to cause the gzip filter to be<br /> - # run on output<br /> - SetOutputFilter gzip<br /> - <br /> - # mod_header directive to add<br /> - # "Content-Encoding: gzip" header field<br /> - Header set Content-Encoding gzip<br /> - </span> - </Location> - </code></p></div> - - - <h3>Slowing down the server</h3> - <div class="example"><p><code> - # mod_ext_filter directive to define a filter<br /> - # which runs everything through cat; cat doesn't<br /> - # modify anything; it just introduces extra pathlength<br /> - # and consumes more resources<br /> - ExtFilterDefine slowdown mode=output cmd=/bin/cat \<br /> - <span class="indent"> - preservescontentlength<br /> - </span> - <br /> - <Location /><br /> - <span class="indent"> - # core directive to cause the slowdown filter to<br /> - # be run several times on output<br /> - #<br /> - SetOutputFilter slowdown;slowdown;slowdown<br /> - </span> - </Location> - </code></p></div> - - - <h3>Using sed to replace text in the response</h3> - <div class="example"><p><code> - # mod_ext_filter directive to define a filter which<br /> - # replaces text in the response<br /> - #<br /> - ExtFilterDefine fixtext mode=output intype=text/html \<br /> - <span class="indent"> - cmd="/bin/sed s/verdana/arial/g"<br /> - </span> - <br /> - <Location /><br /> - <span class="indent"> - # core directive to cause the fixtext filter to<br /> - # be run on output<br /> - SetOutputFilter fixtext<br /> - </span> - </Location> - </code></p></div> - - - <h3>Tracing another filter</h3> - <div class="example"><p><code> - # Trace the data read and written by mod_deflate<br /> - # for a particular client (IP 192.168.1.31)<br /> - # experiencing compression problems.<br /> - # This filter will trace what goes into mod_deflate.<br /> - ExtFilterDefine tracebefore \<br /> - <span class="indent"> - cmd="/bin/tracefilter.pl /tmp/tracebefore" \<br /> - EnableEnv=trace_this_client<br /> - </span> - <br /> - # This filter will trace what goes after mod_deflate.<br /> - # Note that without the ftype parameter, the default<br /> - # filter type of AP_FTYPE_RESOURCE would cause the<br /> - # filter to be placed *before* mod_deflate in the filter<br /> - # chain. Giving it a numeric value slightly higher than<br /> - # AP_FTYPE_CONTENT_SET will ensure that it is placed<br /> - # after mod_deflate.<br /> - ExtFilterDefine traceafter \<br /> - <span class="indent"> - cmd="/bin/tracefilter.pl /tmp/traceafter" \<br /> - EnableEnv=trace_this_client ftype=21<br /> - </span> - <br /> - <Directory /usr/local/docs><br /> - <span class="indent"> - SetEnvIf Remote_Addr 192.168.1.31 trace_this_client<br /> - SetOutputFilter tracebefore;deflate;traceafter<br /> - </span> - </Directory> - </code></p></div> - - <div class="example"><h3>Here is the filter which traces the data:</h3><p><code> - #!/usr/local/bin/perl -w<br /> - use strict;<br /> - <br /> - open(SAVE, ">$ARGV[0]")<br /> - <span class="indent"> - or die "can't open $ARGV[0]: $?";<br /> - </span> - <br /> - while (<STDIN>) {<br /> - <span class="indent"> - print SAVE $_;<br /> - print $_;<br /> - </span> - }<br /> - <br /> - close(SAVE); - </code></p></div> - -</div> -<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> -<div class="directive-section"><h2><a name="ExtFilterDefine" id="ExtFilterDefine">ExtFilterDefine</a> <a name="extfilterdefine" id="extfilterdefine">Directive</a></h2> -<table class="directive"> -<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Define an external filter</td></tr> -<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>ExtFilterDefine <var>filtername</var> <var>parameters</var></code></td></tr> -<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config</td></tr> -<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> -<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_ext_filter</td></tr> -</table> - <p>The <code class="directive">ExtFilterDefine</code> directive defines the - characteristics of an external filter, including the program to - run and its arguments.</p> - - <p><var>filtername</var> specifies the name of the filter being - defined. This name can then be used in SetOutputFilter - directives. It must be unique among all registered filters. - <em>At the present time, no error is reported by the - register-filter API, so a problem with duplicate names isn't - reported to the user.</em></p> - - <p>Subsequent parameters can appear in any order and define the - external command to run and certain other characteristics. The - only required parameter is <code>cmd=</code>. These parameters - are:</p> - - <dl> - <dt><code>cmd=<var>cmdline</var></code></dt> - - <dd>The <code>cmd=</code> keyword allows you to specify the - external command to run. If there are arguments after the - program name, the command line should be surrounded in - quotation marks (<em>e.g.</em>, <code>cmd="<var>/bin/mypgm</var> - <var>arg1</var> <var>arg2</var>"</code>. Normal shell quoting is - not necessary since the program is run directly, bypassing the shell. - Program arguments are blank-delimited. A backslash can be used to - escape blanks which should be part of a program argument. Any - backslashes which are part of the argument must be escaped with - backslash themselves. In addition to the standard CGI environment - variables, DOCUMENT_URI, DOCUMENT_PATH_INFO, and - QUERY_STRING_UNESCAPED will also be set for the program.</dd> - - <dt><code>mode=<var>mode</var></code></dt> - - <dd><code>mode</code> should be <code>output</code> for now (the - default). In the future, <code>mode=input</code> will be used to - specify a filter for request bodies.</dd> - - <dt><code>intype=<var>imt</var></code></dt> - - <dd>This parameter specifies the internet media type (<em>i.e.</em>, - MIME type) of documents which should be filtered. By default, - all documents are filtered. If <code>intype=</code> is - specified, the filter will be disabled for documents of other - types.</dd> - - <dt><code>outtype=<var>imt</var></code></dt> - - <dd>This parameter specifies the internet media type (<em>i.e.</em>, - MIME type) of filtered documents. It is useful when the - filter changes the internet media type as part of the - filtering operation. By default, the internet media type is - unchanged.</dd> - - <dt><code>PreservesContentLength</code></dt> - - <dd>The <code>PreservesContentLength</code> keyword specifies - that the filter preserves the content length. This is not the - default, as most filters change the content length. In the - event that the filter doesn't modify the length, this keyword - should be specified.</dd> - - <dt><code>ftype=<var>filtertype</var></code></dt> - - <dd>This parameter specifies the numeric value for filter type - that the filter should be registered as. The default value, - AP_FTYPE_RESOURCE, is sufficient in most cases. If the filter - needs to operate at a different point in the filter chain than - resource filters, then this parameter will be necessary. See - the AP_FTYPE_foo definitions in util_filter.h for appropriate - values.</dd> - - <dt><code>disableenv=<var>env</var></code></dt> - - <dd>This parameter specifies the name of an environment variable - which, if set, will disable the filter.</dd> - - <dt><code>enableenv=<var>env</var></code></dt> - - <dd>This parameter specifies the name of an environment variable - which must be set, or the filter will be disabled.</dd> - </dl> - -</div> -<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> -<div class="directive-section"><h2><a name="ExtFilterOptions" id="ExtFilterOptions">ExtFilterOptions</a> <a name="extfilteroptions" id="extfilteroptions">Directive</a></h2> -<table class="directive"> -<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Configure <code class="module"><a href="../mod/mod_ext_filter.html">mod_ext_filter</a></code> options</td></tr> -<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>ExtFilterOptions <var>option</var> [<var>option</var>] ...</code></td></tr> -<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>ExtFilterOptions DebugLevel=0 NoLogStderr</code></td></tr> -<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>directory</td></tr> -<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> -<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_ext_filter</td></tr> -</table> - <p>The <code class="directive">ExtFilterOptions</code> directive specifies - special processing options for <code class="module"><a href="../mod/mod_ext_filter.html">mod_ext_filter</a></code>. - <var>Option</var> can be one of</p> - - <dl> - <dt><code>DebugLevel=<var>n</var></code></dt> - - <dd> - The <code>DebugLevel</code> keyword allows you to specify - the level of debug messages generated by - <code class="module"><a href="../mod/mod_ext_filter.html">mod_ext_filter</a></code>. By default, no debug messages - are generated. This is equivalent to - <code>DebugLevel=0</code>. With higher numbers, more debug - messages are generated, and server performance will be - degraded. The actual meanings of the numeric values are - described with the definitions of the DBGLVL_ constants - near the beginning of <code>mod_ext_filter.c</code>. - - <p>Note: The core directive <code class="directive"><a href="../mod/core.html#loglevel">LogLevel</a></code> should be used to cause debug messages to - be stored in the Apache error log.</p> - </dd> - - <dt><code>LogStderr | NoLogStderr</code></dt> - - <dd>The <code>LogStderr</code> keyword specifies that - messages written to standard error by the external filter - program will be saved in the Apache error log. - <code>NoLogStderr</code> disables this feature.</dd> - </dl> - - <div class="example"><h3>Example</h3><p><code> - ExtFilterOptions LogStderr DebugLevel=0 - </code></p></div> - - <p>Messages written to the filter's standard error will be stored - in the Apache error log. No debug messages will be generated by - <code class="module"><a href="../mod/mod_ext_filter.html">mod_ext_filter</a></code>. </p> - -</div> -</div> -<div class="bottomlang"> -<p><span>Available Languages: </span><a href="../en/mod/mod_ext_filter.html" title="English"> en </a> | -<a href="../ko/mod/mod_ext_filter.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p> -</div><div id="footer"> -<p class="apache">Copyright 2009 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> -<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p></div> -</body></html>
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