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<h1>App Server Context</h1><h2 id="top">Table of Contents</h2><section class="toc"><section class="toc-row"><header><a href="#appServerContext">App Server Context</a></header><p>
<a href="#expuri">URI</a> | <a href="#as_location">Location</a> | <a href="#binPath">Binary Path</a> | <a href="#appType">Application Type</a> | <a href="#as_startupfile">Startup File</a> | <a href="#appserverEnv">Run-Time Mode</a> | <a href="#maxConns">Max Connections</a> | <a href="#env">Environment</a> | <a href="#enableExpires">启用过期</a> | <a href="#expiresDefault">默认过期</a> | <a href="#expiresByType">按类型过期</a> | <a href="#extraHeaders">Header Operations</a> | <a href="#indexFiles">索引文件</a> | <a href="#autoIndex">自动索引</a> | <a href="#realm">Realm</a> | <a href="#authName">认证名称</a> | <a href="#required">Require(授权的用户/组)</a> | <a href="#accessAllowed">允许访问列表</a> | <a href="#accessDenied">拒绝访问列表</a> | <a href="#extAuthorizer">Authorizer</a> | <a href="#enableRewrite">Enable Rewrite</a> | <a href="#rewriteInherit">重写继承</a> | <a href="#rewriteBase">重写基准</a> | <a href="#rewriteRules">Rewrite Rules</a> | <a href="#addDefaultCharset">添加默认的字符集</a> | <a href="#defaultCharsetCustomized">自定义默认字符集</a> | <a href="#enableIpGeo">启用IP地理定位</a></p></section>
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<section><div class="helpitem"><article class="ls-helpitem"><div><header id="appServerContext"><h3>App Server Context<span class="ls-permlink"><a href="#appServerContext"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>An App Server Context provides an easy way to configure a Ruby Rack/Rails, WSGI, or Node.js application. To add a an application through an App Server Context, only mounting the URL and the application's root directory is required. There is no need to go through all the trouble to define an external application, add a 404 handler, and rewrite rules, etc.</p> </article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="expuri"><h3>URI<span class="ls-permlink"><a href="#expuri"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>Specifies the URI for this context.</p> <h4>Syntax</h4><p>The URI can be a plain URI (starting with "/") or a Perl compatible regular expression URI (starting with "exp:"). If a plain URI ends with a "/", then this context will include all sub-URIs under this URI. If the context maps to a directory on the file system, a trailing "/" must be added.</p> <h4>See Also</h4><p class="ls-text-small"><span class="tagl"><a href="#location">Location</a></span></p> </article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="as_location"><h3>Location<span class="ls-permlink"><a href="#as_location"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>Specifies the corresponding location of this context in the file system.<br/><br/> Default value: $DOC_ROOT + <span class="tagl"><a href="#expuri">URI</a></span></p> <h4>Syntax</h4><p>It can be an absolute path or path relative to $SERVER_ROOT, $VH_ROOT, or $DOC_ROOT. $DOC_ROOT is the default relative path, and can be omitted.<br/><br/> If the <span class="tagl"><a href="#expuri">URI</a></span> is a regular expression, then the matched sub-string can be used to form the "Root" string. The matched sub-string can be referenced with the values "$1" - "$9". "$0" and "&" can be used to reference the whole matched string. Additionally, a query string can be set by appending a "?" followed by the query string. Be careful. "&" should be escaped as "\&" in the query string.</p> <h4>Example</h4><div class="ls-example">A plain URI like <span class="val">/examples/</span> with <span class="tagl"><a href="#location">Location</a></span> set to <span class="val">/home/john/web_examples</span> will map the request "/examples/foo/bar.html" to file "/home/john/web_examples/foo/bar.html".<br/> To simulate Apache's mod_userdir, set URI to <span class="val">exp: ^/~([A-Za-z0-9]+)(.*)</span>, set <span class="tagl"><a href="#location">Location</a></span> to <span class="val">/home/$1/public_html$2</span>. With these settings, a request of URI /~john/foo/bar.html will map to file /home/john/public_html/foo/bar.html.</div><h4>See Also</h4><p class="ls-text-small"><span class="tagl"><a href="#expuri">URI</a></span></p> </article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="binPath"><h3>Binary Path<span class="ls-permlink"><a href="#binPath"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>The location of the App Server application binary.</p> </article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="appType"><h3>Application Type<span class="ls-permlink"><a href="#appType"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>The type of application used for this context. Rack/Rails, WSGI, or Node.js are supported.</p> </article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="as_startupfile"><h3>Startup File<span class="ls-permlink"><a href="#as_startupfile"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>The location of file used to start the application, relative to the application root directory.<br/><br/> Default startup file names include 'config.ru' for Rack/Rails, 'wsgi.py' and 'passenger_wsgi.py' for WSGI, and 'app.js' for NodeJS.</p> <h4>Syntax</h4><p>Path relative to application root directory</p> </article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="appserverEnv"><h3>Run-Time Mode<span class="ls-permlink"><a href="#appserverEnv"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>Specifies which mode the application will be running as: "Development", "Production", or "Staging". The default is "Production".</p> <h4>Syntax</h4><p>Select from drop down list</p> </article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="maxConns"><h3>Max Connections<span class="ls-permlink"><a href="#maxConns"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>Specifies the maximum number of concurrent connections that can be established between the server and an external application. This setting controls how many requests can be processed concurrently by an external application, however, the real limit also depends on the external application itself. Setting this value higher will not help if the external application is not fast enough or cannot scale to a large number of concurrent requests.</p> <h4>Syntax</h4><p>无符号整数</p> <h4>Tips</h4><p><span title="Performance" class="ls-icon-performance"></span> Setting a high value does not directly translate to higher performance. Setting the limit to a value that will not overload the external application will provide the best performance/throughput.</p> </article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="env"><h3>Environment<span class="ls-permlink"><a href="#env"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>Specifies extra environment variables for the external application.</p> <h4>Syntax</h4><p>Key=value. Multiple variables can be separated by "ENTER"</p> </article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="enableExpires"><h3>启用过期<span class="ls-permlink"><a href="#enableExpires"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>指定是否为静态文件生成Expires头。如果启用,将根据 <span class="tagl"><a href="#expiresDefault">默认过期</a></span>和<span class="tagl"><a href="#expiresByType">按类型过期</a></span>生成Expires头。<br/><br/> 这可以在服务器,虚拟主机和Context级别设置。低级别的设置将 覆盖高级别的设置。例如,Context级别的设置将覆盖虚拟主机级别的设置, 虚拟主机级别的设置将覆盖服务器级别的设置。</p> <h4>Syntax</h4><p>布尔值</p> </article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="expiresDefault"><h3>默认过期<span class="ls-permlink"><a href="#expiresDefault"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>指定生成Expires头的默认设置。该设置在<span class="tagl"><a href="#enableExpires">启用过期</a></span> 设为“启用”时有效。它可以被<span class="tagl"><a href="#expiresByType">按类型过期</a></span>覆盖。 除非必要,否则不要在服务器或虚拟主机级别设置该默认值。 因为它会为所有网页生成Expires头。大多数时候,应该是 为不常变动的某些目录在Context级别设置。如果没有默认设置,<span class="tagl"><a href="#expiresByType">按类型过期</a></span>中未指定的类型不会生成Expires头。</p> <h4>Syntax</h4><p>A|M秒数<br/> 文件将在基准时间(A|M)加指定秒数的时间后失效。 “A”代表基准时间为客户端的访问时间,“M”代表文件的最后修改时间。</p> </article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="expiresByType"><h3>按类型过期<span class="ls-permlink"><a href="#expiresByType"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>为各个MIME类型分别指定Expires头设置。</p> <h4>Syntax</h4><p>逗号分隔的“MIME-类型=A|M秒数”的列表。 文件将在基准时间(A|M)加指定秒数的时间后失效。<br/><br/> “A”代表基准时间为客户端的访问时间,“M”代表文件的最后修改时间。 MIME-类型可使用通配符“*”,如image/*。</p> </article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="extraHeaders"><h3>Header Operations<span class="ls-permlink"><a href="#extraHeaders"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>Specifies additional response/request headers to be added. Multiple header directives can be added with one directive per line. "NONE" can be used to disable parent header inheritance. If no directive is provided 'Header' is assumed.</p> <h4>Syntax</h4><p>[Header]|RequestHeader [condition] set|append|merge|add|unset header [value] [early|env=[!]variable]</p> <h4>Example</h4><div class="ls-example">set Cache-control no-cache<br/> append Cache-control no-store<br/> Header set My-header cust_header_val<br/> RequestHeader set My-req-header cust_req_header_val</div><h4>Tips</h4><p><span title="Information" class="ls-icon-info"></span> Syntax and usage are similar to <a href="https://httpd.apache.org/docs/2.2/mod/mod_headers.html#header" target="_blank" rel="noopener noreferrer">Apache's mod_headers directives</a> for supported operations.<br/><br/> <span title="Information" class="ls-icon-info"></span> The 'Header' directive is is optional and can be excluded or left in when copying rules from elsewhere without issue.</p> </article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="indexFiles"><h3>索引文件<span class="ls-permlink"><a href="#indexFiles"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>指定URL映射到目录时顺序查找的索引文件名称。 您可以在服务器、虚拟主机和Context级别对其进行自定义。</p> <h4>Syntax</h4><p>逗号分隔的索引文件名列表。</p> <h4>Tips</h4><p>[性能建议] 只设置你需要的索引文件。</p> </article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="autoIndex"><h3>自动索引<span class="ls-permlink"><a href="#autoIndex"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>在目录中,当<span class="tagl"><a href="#indexFiles">索引文件</a></span>中所列的索引文件不可用时,指定运行时是否即时生成目录索引。<br/> 此选项可以在虚拟主机级别和context级别中设置,并可以顺着目录树继承,直到被覆盖。 您可以自定义生成的索引页面。请访问在线百科了解如何操作。</p> <h4>Syntax</h4><p>布尔值</p> <h4>Tips</h4><p>[安全建议] 建议关闭自动索引,从而尽可能防止泄露机密数据。</p> <h4>See Also</h4><p class="ls-text-small"><span class="tagl"><a href="#indexFiles">索引文件</a></span>, <span class="tagl"><a href="#autoIndexURI">自动索引URI</a></span></p> </article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="realm"><h3>Realm<span class="ls-permlink"><a href="#realm"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>指定这个context下的realm授权。 当指定时,必须提供有效的用户和用户名来访问这个context。 <span class="tagl"><a href="VHSecurity_Help.html#realms">Realms授权</a></span>需要在<span class="tagP"><a href="#VHSecurity_Help">Virtual Host Security</a></span>部分进行设置。此设置使用每个realm的<span class="tagl"><a href="VHSecurity_Help.html#realmName">Realm名称</a></span>。</p> <h4>Syntax</h4><p>选项</p> </article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="authName"><h3>认证名称<span class="ls-permlink"><a href="#authName"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>为当前context下的realm认证指定一个替代的名称。 如果没有指定,原realm名称将被使用。 认证名称将显示在浏览器登陆弹出窗口。</p> <h4>Syntax</h4><p>文本</p> </article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="required"><h3>Require(授权的用户/组)<span class="ls-permlink"><a href="#required"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>指定哪些用户/用户组可以访问此context。 这里允许你使用一个用户/组数据库(在 <span class="tagl"><a href="#realm">Realm</a></span>中指定)访问多个context, 但只允许该数据库下特定的用户/组访问这个context。</p> <h4>Syntax</h4><p>语法兼容Apache的Require指令。例如: <ul> <li><span class="val">user username [username ...]</span> <br/> 只有列出的用户可以访问这个context;</li> <li> <span class="val">group groupid [groupid ...]</span><br/> 用户必须属于列出的组才可以访问这个context。</li> </ul> 如果没有指定,所有有效的用户都可以访问这个资源。</p> </article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="accessAllowed"><h3>允许访问列表<span class="ls-permlink"><a href="#accessAllowed"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>指定允许访问这个context下资源的IP地址或子网。综合 <span class="tagl"><a href="#accessDenied">拒绝访问列表</a></span>项的配置以及服务器/虚拟主机级别访问控制, 可访问性将以客户端IP所符合的最小范围来确定。</p> <h4>Syntax</h4><p>逗号分隔的IP地址/子网列表。</p> <h4>Example</h4><div class="ls-example">子网络可以写成<span class="val">192.168.1.0/255.255.255.0</span>, <span class="val">192.168.1</span> 或<span class="val">192.168.1.*</span>。</div></article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="accessDenied"><h3>拒绝访问列表<span class="ls-permlink"><a href="#accessDenied"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>指定哪个IP地址或子网不被允许访问这个context下的资源。 综合<span class="tagl"><a href="#accessAllowed">允许访问列表</a></span>项的配置以及服务器/虚拟主机级别访问控制, 可访问性将以客户端IP所符合的最小范围来确定。</p> <h4>Syntax</h4><p>逗号分隔的IP地址/子网列表。</p> <h4>Example</h4><div class="ls-example">子网络可以写成<span class="val">192.168.1.0/255.255.255.0</span>, <span class="val">192.168.1</span> 或<span class="val">192.168.1.*</span>。</div></article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="extAuthorizer"><h3>Authorizer<span class="ls-permlink"><a href="#extAuthorizer"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>Specifies an external application that can be used to generate authorized/unauthorized decisions. Currently, only the FastCGI Authorizer is available. For more details about the FastCGI Authorizer role, please visit <a href="http://www.fastcgi.com" target="_blank" rel="noopener noreferrer">http://www.fastcgi.com</a>.</p> <h4>Syntax</h4><p>Select from drop down list</p> </article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="enableRewrite"><h3>Enable Rewrite<span class="ls-permlink"><a href="#enableRewrite"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>Specifies whether to enable LiteSpeed's URL rewrite engine. This option can be customized at the virtual host or context level, and is inherited along the directory tree until it is explicitly overridden.</p> <h4>Syntax</h4><p>Select from radio box</p> </article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="rewriteInherit"><h3>重写继承<span class="ls-permlink"><a href="#rewriteInherit"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>指定是否从父级context继承重写规则。 如果启用重写但不继承,将启用本context的重写基准及重写规则。</p> <h4>Syntax</h4><p>布尔值</p> </article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="rewriteBase"><h3>重写基准<span class="ls-permlink"><a href="#rewriteBase"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>指定重写规则的基准URL。</p> <h4>Syntax</h4><p>URL</p> </article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="rewriteRules"><h3>Rewrite Rules<span class="ls-permlink"><a href="#rewriteRules"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>Specifies a list of rewrite rules at the virtual host level.<br/><br/> Do NOT add any document root level rewrite rules here. If you have any document root level rewrite rules from .htaccess,  you should instead create a static context with uri "/" and add the rewrite rules there.<br/><br/> A rewrite rule is comprised of one <span class="val">RewriteRule</span> directive and optionally preceded by multiple <span class="val">RewriteCond</span> directives.  <ul> <li>Each directive should take only one line. </li> <li><span class="val">RewriteCond</span> and <span class="val">RewriteRule</span> follow Apache's rewrite directive syntax. Just copy and paste rewrite directives from your Apache configuration files.</li> <li>There are minor differences between LiteSpeed and Apache mod_rewrite implementation:  <ul><li><span class="val">%\{LA-U:variable\}</span> and <span class="val">%\{LA-F:variable\}</span> are ignored by the LiteSpeed rewrite engine </li>   <li>two new server variables are added in the LiteSpeed rewrite engine:    <span class="val">%\{CURRENT_URI\}</span> represents the current URI being processed by the rewrite engine and <span class="val">%\{SCRIPT_NAME\}</span> has the same  meaning as the corresponding CGI environment variable. </li> </ul></li> </ul> The implementation of LiteSpeed's rewrite engine follows the  Apache's rewrite engine specifications. For more details about rewrite rules, please refer to <a href="http://httpd.apache.org/docs/current/mod/mod_rewrite.html" target="_blank" rel="noopener noreferrer">Apache's mod_rewrite document</a> and <a href="http://httpd.apache.org/docs/current/rewrite/" target="_blank" rel="noopener noreferrer">Apache's URL  rewriting guide</a>.</p> <h4>Syntax</h4><p>string</p> </article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="addDefaultCharset"><h3>添加默认的字符集<span class="ls-permlink"><a href="#addDefaultCharset"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>指定当内容类型是"text/html"或"text/plain"且没有参数时,是否添加字符集标记到"Content-Type"响应报头中。当设置为<span class="val">Off</span>时,该功能禁用。当设置为<span class="val">On</span>时,将添加<span class="tagl"><a href="#defaultCharsetCustomized">自定义默认字符集</a></span>中指定的字符集,如果没有指定,将添加默认的"iso-8859-1"字符集。</p> <h4>Syntax</h4><p>布尔值</p> </article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="defaultCharsetCustomized"><h3>自定义默认字符集<span class="ls-permlink"><a href="#defaultCharsetCustomized"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>指定一个字符集当<span class="tagl"><a href="#addDefaultCharset">添加默认的字符集</a></span>是<span class="val">On</span>时使用。这是可选的。默认值是<span class="val">iso-8859-1</span>。当<span class="tagl"><a href="#addDefaultCharset">添加默认的字符集</a></span>是<span class="val">Off</span>时本设置将不生效。</p> <h4>Syntax</h4><p>字符集的名称,例如<span class="val">utf-8</span></p> <h4>Example</h4><div class="ls-example">utf-8</div></article> </div>
<div class="helpitem"><article class="ls-helpitem"><div><header id="enableIpGeo"><h3>启用IP地理定位<span class="ls-permlink"><a href="#enableIpGeo"></a></span><span class="top"><a href="#top">&#8657;</a></span></h3></header></div><h4>Description</h4><p>指定是否启用IP地理定位查找。 可以在服务器级别,虚拟主机级别,或context级别设置。</p> <h4>Syntax</h4><p>布尔值</p> <h4>See Also</h4><p class="ls-text-small"><span class="tagl"><a href="ServGeneral_Help.html#useIpInProxyHeader">使用报头中的客户端IP</a></span>, <span class="tagl"><a href="ServGeneral_Help.html#geoipDBFile">数据库文件路径</a></span>,</p> </article> </div>
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