Mercurial > hg > nginx-site
changeset 2237:5268c13196f2
Documented njs changes triggered by njs-0.2.4.
| author | Yaroslav Zhuravlev <yar@nginx.com> |
|---|---|
| date | Thu, 13 Sep 2018 21:10:42 +0300 |
| parents | 9f0f4f5c1a30 |
| children | 0761b770a94e |
| files | xml/en/docs/njs/njs_api.xml xml/en/docs/njs/njs_changes.xml xml/en/docs/stream/ngx_stream_js_module.xml xml/index.xml xml/ru/docs/stream/ngx_stream_js_module.xml |
| diffstat | 5 files changed, 610 insertions(+), 172 deletions(-) [+] |
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--- a/xml/en/docs/njs/njs_api.xml Mon Sep 17 06:59:29 2018 +0000 +++ b/xml/en/docs/njs/njs_api.xml Thu Sep 13 21:10:42 2018 +0300 @@ -9,7 +9,7 @@ <article name="njs API" link="/en/docs/njs/njs_api.html" lang="en" - rev="6"> + rev="7"> <section id="summary"> @@ -1004,7 +1004,6 @@ <tag-desc> arguments string </tag-desc> - <tag-name><literal>body</literal></tag-name> <tag-desc> request body @@ -1038,58 +1037,48 @@ <link doc="../stream/ngx_stream_js_module.xml">ngx_stream_js_module</link> module. All string properties of the object are <link id="string">byte strings</link>. +</para> +<para> +<note> +Prior to njs <link doc="../njs/njs_changes.xml" id="njs0.2.4">0.2.4</link>, +the stream session object had some properties which are currently +<link id="stream_obsolete">removed</link>. +</note> +</para> + +<para> <list type="tag"> -<tag-name><literal>s.remoteAddress</literal></tag-name> -<tag-desc> -client address, read-only -</tag-desc> - -<tag-name><literal>s.eof</literal></tag-name> +<tag-name id="s_allow"><literal>s.allow()</literal></tag-name> <tag-desc> -a boolean read-only property, true if the current buffer is the last buffer -</tag-desc> - -<tag-name><literal>s.fromUpstream</literal></tag-name> -<tag-desc> -a boolean read-only property, -true if the current buffer is from the upstream server to the client -</tag-desc> - -<tag-name><literal>s.buffer</literal></tag-name> -<tag-desc> -the current buffer, writable +successfully finalizes the phase handler +(<link doc="../njs/njs_changes.xml" id="njs0.2.4">0.2.4</link>) </tag-desc> -<tag-name><literal>s.variables{}</literal></tag-name> +<tag-name id="s_decline"><literal>s.decline()</literal></tag-name> <tag-desc> -nginx variables object, read-only +finalizes the phase handler and passes control to the next handler +(<link doc="../njs/njs_changes.xml" id="njs0.2.4">0.2.4</link>) </tag-desc> -<tag-name><literal>s.OK</literal></tag-name> +<tag-name id="s_deny"><literal>s.deny()</literal></tag-name> <tag-desc> -the <literal>OK</literal> return code +finalizes the phase handler with the access error code +(<link doc="../njs/njs_changes.xml" id="njs0.2.4">0.2.4</link>) </tag-desc> -<tag-name><literal>s.DECLINED</literal></tag-name> +<tag-name id="s_done"><literal>s.done</literal>(<value>[code]</value>)</tag-name> <tag-desc> -the <literal>DECLINED</literal> return code +successfully finalizes the current phase handler +or finalizes it with the specified numeric code +(<link doc="../njs/njs_changes.xml" id="njs0.2.4">0.2.4</link>). </tag-desc> -<tag-name><literal>s.AGAIN</literal></tag-name> -<tag-desc> -the <literal>AGAIN</literal> return code -</tag-desc> - -<tag-name><literal>s.ERROR</literal></tag-name> +<tag-name><literal>s.error(<value>string</value>)</literal></tag-name> <tag-desc> -the <literal>ERROR</literal> return code -</tag-desc> - -<tag-name><literal>s.ABORT</literal></tag-name> -<tag-desc> -the <literal>ABORT</literal> return code +writes a sent <literal>string</literal> to the error log +on the <literal>error</literal> level of logging </tag-desc> <tag-name><literal>s.log(<value>string</value>)</literal></tag-name> @@ -1098,16 +1087,187 @@ on the <literal>info</literal> level of logging </tag-desc> +<tag-name id="s_off"><literal>s.off(<value>eventName</value>)</literal></tag-name> +<tag-desc> +unregisters the callback set by the <link id="s_on">s.on()</link> method +(<link doc="../njs/njs_changes.xml" id="njs0.2.4">0.2.4</link>) +</tag-desc> + +<tag-name id="s_on"><literal>s.on(<value>event</value>, +<value>callback</value>)</literal></tag-name> +<tag-desc> +registers a <literal>callback</literal> for the specified <literal>event</literal> +(<link doc="../njs/njs_changes.xml" id="njs0.2.4">0.2.4</link>). + +<para> +An <literal>event</literal> may be one of the following strings: +<list type="tag"> +<tag-name><literal>upload</literal></tag-name> +<tag-desc> +new data from a client +</tag-desc> + +<tag-name><literal>download</literal></tag-name> +<tag-desc> +new data to a client +</tag-desc> + +</list> +</para> + +<para> +The completion callback has the following prototype: +<literal>callback(data, flags)</literal>, where +<literal>data</literal> is string, +<literal>flags</literal> is an object +with the following properties: +<list type="tag"> +<tag-name id="s_on_callback_last"><literal>last</literal></tag-name> +<tag-desc> +a boolean value, true if data is a last buffer. +</tag-desc> + +</list> +</para> +</tag-desc> + +<tag-name><literal>s.remoteAddress</literal></tag-name> +<tag-desc> +client address, read-only +</tag-desc> + +<tag-name id="s_send"><literal>s.send(<value>data</value>[, +<value>options</value>])</literal></tag-name> +<tag-desc> +sends the data to the client +(<link doc="../njs/njs_changes.xml" id="njs0.2.4">0.2.4</link>). +The <literal>options</literal> is an object used +to override nginx buffer flags derived from an incoming data chunk buffer. +The flags can be overriden with the following flags: +<para> +<list type="tag"> + +<tag-name><literal>last</literal></tag-name> +<tag-desc> +boolean, true if the buffer is the last buffer +</tag-desc> + +<tag-name><literal>flush</literal></tag-name> +<tag-desc> +boolean, true if the buffer should have the <literal>flush</literal> flag +</tag-desc> +</list> +</para> +The method can be called multiple times per callback invocation. +</tag-desc> + +<tag-name><literal>s.variables{}</literal></tag-name> +<tag-desc> +nginx variables object, read-only +</tag-desc> + <tag-name><literal>s.warn(<value>string</value>)</literal></tag-name> <tag-desc> writes a sent <literal>string</literal> to the error log on the <literal>warning</literal> level of logging </tag-desc> -<tag-name><literal>s.error(<value>string</value>)</literal></tag-name> +</list> +</para> + + +<section id="stream_obsolete" name="Obsolete properties"> + +<para> +These properties have been removed +in njs <link doc="../njs/njs_changes.xml" id="njs0.2.4">0.2.4</link> +and are not backward compatible with the existing njs code. +</para> + +<para> +<list type="tag"> + +<tag-name id="s_abort"><literal>s.ABORT</literal></tag-name> +<tag-desc> +the <literal>ABORT</literal> return code +<note> +Starting from njs <link doc="../njs/njs_changes.xml" id="njs0.2.4">0.2.4</link>, +the <link id="s_deny">s.deny()</link> method should be used instead. +</note> +</tag-desc> + +<tag-name><literal>s.AGAIN</literal></tag-name> +<tag-desc> +the <literal>AGAIN</literal> return code +<note> +Starting from njs <link doc="../njs/njs_changes.xml" id="njs0.2.4">0.2.4</link>, +the corresponding behavior is achieved if no +<link id="s_allow">s.allow()</link>, +<link id="s_deny">s.deny()</link>, +<link id="s_decline">s.decline()</link>, +<link id="s_done">s.done()</link> +is invoked and a callback is registered. +</note> +</tag-desc> + +<tag-name id="s_buffer"><literal>s.buffer</literal></tag-name> <tag-desc> -writes a sent <literal>string</literal> to the error log -on the <literal>error</literal> level of logging +the current buffer, writable +<note> +Starting from <link doc="../njs/njs_changes.xml" id="njs0.2.4">0.2.4</link>, +the <link id="s_send">s.send()</link> method should be used for writing. +For reading, the current buffer is available as the first argument of the +<literal>event</literal> callback. +</note> +</tag-desc> + +<tag-name><literal>s.DECLINED</literal></tag-name> +<tag-desc> +the <literal>DECLINED</literal> return code +<note> +Starting from njs <link doc="../njs/njs_changes.xml" id="njs0.2.4">0.2.4</link>, +the <link id="s_decline">s.decline()</link> method should be used instead. +</note> +</tag-desc> + +<tag-name><literal>s.eof</literal></tag-name> +<tag-desc> +a boolean read-only property, true if the current buffer is the last buffer +<note> +Starting from <link doc="../njs/njs_changes.xml" id="njs0.2.4">0.2.4</link>, +the <link id="s_on_callback_last">flags.last</link> property +should be used instead. +</note> +</tag-desc> + +<tag-name><literal>s.ERROR</literal></tag-name> +<tag-desc> +the <literal>ERROR</literal> return code +<note> +Starting from njs <link doc="../njs/njs_changes.xml" id="njs0.2.4">0.2.4</link>, +an appropriate exception can be thrown to report an error. +</note> +</tag-desc> + +<tag-name><literal>s.fromUpstream</literal></tag-name> +<tag-desc> +a boolean read-only property, +true if the current buffer is from the upstream server to the client +<note> +Starting from <link doc="../njs/njs_changes.xml" id="njs0.2.4">0.2.4</link>, +a corresponding <link id="s_on">event</link> +(<literal>upload</literal> or <literal>download</literal>) +should be used to handle data to or from client. +</note> +</tag-desc> + +<tag-name id="s_ok"><literal>s.OK</literal></tag-name> +<tag-desc> +the <literal>OK</literal> return code +<note> +Starting from njs <link doc="../njs/njs_changes.xml" id="njs0.2.4">0.2.4</link>, +the <link id="s_allow">s.allow()</link> method should be used instead. +</note> </tag-desc> </list> @@ -1115,6 +1275,8 @@ </section> +</section> + <section id="example" name="Examples"> @@ -1370,6 +1532,137 @@ </section> + +<section id="example_legacy" name="Legacy Examples"> + + +<section id="example_legacy_stream" name="Stream Example"> + +<para> +Starting from njs <link doc="../njs/njs_changes.xml" id="njs0.2.4">0.2.4</link>, +stream configuration +<link doc="../stream/ngx_stream_js_module.xml" id="example">example</link> +has been changed. +For njs <link doc="../njs/njs_changes.xml" id="njs-0.2.3">0.2.3</link> +and earlier, use this configuration example: +<example> +load_module modules/ngx_stream_js_module.so; +... + +stream { + js_include stream.js; + + js_set $foo foo; + js_set $bar bar; + + server { + listen 12345; + + js_preread qux; + return $foo; + } + + server { + listen 12346; + + js_access xyz; + proxy_pass 127.0.0.1:8000; + js_filter baz; + } +} + +http { + server { + listen 8000; + location / { + return 200 $http_foo\n; + } + } +} +</example> +</para> + +<para> +The <path>stream.js</path> file: +<example> +var req = ''; +var matched = 0; +var line = ''; + +function qux(s) { + var n = s.buffer.indexOf('\n'); + if (n == -1) { + return s.AGAIN; + } + + line = s.buffer.substr(0, n); +} + +function foo(s) { + return line; +} + +function bar(s) { + var v = s.variables; + s.log("hello from bar() handler!"); + return "foo-var" + v.remote_port + "; pid=" + v.pid; +} + +// The filter processes one buffer per call. +// The buffer is available in s.buffer both for +// reading and writing. Called for both directions. + +function baz(s) { + if (s.fromUpstream || matched) { + return; + } + + // Disable certain addresses. + + if (s.remoteAddress.match('^192.*')) { + return s.ERROR; + } + + // Read HTTP request line. + // Collect bytes in 'req' until request + // line is read. Clear current buffer to + // disable output. + + req = req + s.buffer; + s.buffer = ''; + + var n = req.search('\n'); + + if (n != -1) { + // Inject a new HTTP header. + var rest = req.substr(n + 1); + req = req.substr(0, n + 1); + + var addr = s.remoteAddress; + + s.log('req:' + req); + s.log('rest:' + rest); + + // Output the result and skip further + // processing. + + s.buffer = req + 'Foo: addr_' + addr + '\r\n' + rest; + matched = 1; + } +} + +function xyz(s) { + if (s.remoteAddress.match('^192.*')) { + return s.ABORT; + } +} +</example> +</para> + +</section> + +</section> + </section> </article>
--- a/xml/en/docs/njs/njs_changes.xml Mon Sep 17 06:59:29 2018 +0000 +++ b/xml/en/docs/njs/njs_changes.xml Thu Sep 13 21:10:42 2018 +0300 @@ -9,9 +9,182 @@ <article name="njs Changes" link="/en/docs/njs/njs_changes.html" lang="en" - rev="6" + rev="7" toc="no"> +<section id="njs0.2.4" name="Changes with 0.2.4"> + +<para> +Release Date: +18 September 2018 +</para> + +<para> +nginx modules: +<list type="bullet"> + +<listitem> +<para> +Change: +stream module handlers refactored. +</para> + +<para> +New methods and properties: +<link doc="njs_api.xml" id="s_on">s.on()</link>, +<link doc="njs_api.xml" id="s_off">s.off()</link>, +<link doc="njs_api.xml" id="s_allow">s.allow()</link>, +<link doc="njs_api.xml" id="s_done">s.done()</link>, +<link doc="njs_api.xml" id="s_decline">s.decline()</link>, +<link doc="njs_api.xml" id="s_deny">s.deny()</link>. +</para> + +<para> +Removed properties of the +<link doc="njs_api.xml" id="stream">Stream</link> object: +<literal>s.OK</literal>, +<literal>s.ABORT</literal>, +<literal>s.AGAIN</literal>, +<literal>s.DECLINED</literal>, +<literal>s.ERROR</literal> +(replaced with +<link doc="njs_api.xml" id="s_allow">s.allow()</link>, +<link doc="njs_api.xml" id="s_done">s.done()</link>, +<link doc="njs_api.xml" id="s_deny">s.deny()</link>). +</para> + +<para> +<literal>s.buffer</literal> +(for reading replaced with data argument of +the corresponding callback, for writing use +<link doc="njs_api.xml" id="s_send">s.send()</link>). +</para> + +<para> +<literal>s.fromUpstream</literal> +(replaced with a callback for a corresponding event). +</para> + +<para> +<literal>s.eof</literal> +(replaced with <literal></literal> +<link doc="njs_api.xml" id="s_on_callback_last">flags.last</link>). +</para> + +</listitem> + +</list> +</para> + +<para> +Core: +<list type="bullet"> + +<listitem> +<para> +Feature: +added <literal>Function.prototype.length</literal>. +</para> +</listitem> + +<listitem> +<para> +Feature: +introduced sandboxing mode. +</para> +</listitem> + +<listitem> +<para> +Improvement: +added exception strings where appropriate. +</para> +</listitem> + +<listitem> +<para> +Improvement: +improved wording for primitive type conversion exception. +</para> +</listitem> + +<listitem> +<para> +Bugfix: +throwing <literal>TypeError</literal> +for attempts to change frozen properties. +</para> +</listitem> + +<listitem> +<para> +Bugfix: +fixed <literal>Object.defineProperty()</literal> for existing properties. +</para> +</listitem> + +<listitem> +<para> +Bugfix: +respecting the enumerable attribute while iterating by for in. +</para> +</listitem> + +<listitem> +<para> +Bugfix: +respecting writable attribute for property handlers. +</para> +</listitem> + +<listitem> +<para> +Bugfix: +fixed exception handling in arguments of a function. +</para> +</listitem> + +<listitem> +<para> +Bugfix: +fixed <literal>Object.prototype.toString</literal> for different value types. +</para> +</listitem> + +<listitem> +<para> +Bugfix: +fixed <literal>Object()</literal> constructor for object types arguments. +</para> +</listitem> + +<listitem> +<para> +Bugfix: +fixed comparison of objects and strings. +</para> +</listitem> + +<listitem> +<para> +Bugfix: +fixed <literal>String.slice()</literal> for undefined arguments. +</para> +</listitem> + +<listitem> +<para> +Bugfix: +miscellaneous additional bugs have been fixed. +</para> +</listitem> + +</list> +</para> + +</section> + + <section id="njs0.2.3" name="Changes with 0.2.3"> <para>
--- a/xml/en/docs/stream/ngx_stream_js_module.xml Mon Sep 17 06:59:29 2018 +0000 +++ b/xml/en/docs/stream/ngx_stream_js_module.xml Thu Sep 13 21:10:42 2018 +0300 @@ -9,7 +9,7 @@ <module name="Module ngx_stream_js_module" link="/en/docs/stream/ngx_stream_js_module.html" lang="en" - rev="12"> + rev="13"> <section id="summary"> @@ -31,6 +31,13 @@ <section id="example" name="Example Configuration"> <para> +<note> +This example is valid for +njs <link doc="../njs/njs_changes.xml" id="njs-0.2.4">0.2.4</link>. +For njs <link doc="../njs/njs_changes.xml" id="njs-0.2.3">0.2.3</link> +and earlier, use +<link doc="../njs/njs_api.xml" id="example_legacy">this</link> example. +</note> <example> load_module modules/ngx_stream_js_module.so; ... @@ -38,22 +45,22 @@ stream { js_include stream.js; - js_set $foo foo; js_set $bar bar; + js_set $req_line req_line; server { listen 12345; - js_preread qux; - return $foo; + js_preread preread; + return $req_line; } server { listen 12346; - js_access xyz; + js_access access; proxy_pass 127.0.0.1:8000; - js_filter baz; + js_filter header_inject; } } @@ -71,76 +78,55 @@ <para> The <path>stream.js</path> file: <example> -var req = ''; -var matched = 0; var line = ''; -function qux(s) { - var n = s.buffer.indexOf('\n'); - if (n == -1) { - return s.AGAIN; - } - - line = s.buffer.substr(0, n); -} - -function foo(s) { - return line; -} - function bar(s) { var v = s.variables; s.log("hello from bar() handler!"); - return "foo-var" + v.remote_port + "; pid=" + v.pid; + return "bar-var" + v.remote_port + "; pid=" + v.pid; +} + +function preread(s) { + s.on('upload', function (data, flags) { + var n = data.indexOf('\n'); + if (n != -1) { + line = data.substr(0, n); + s.done(); + } + }); +} + +function req_line(s) { + return line; } -// The filter processes one buffer per call. -// The buffer is available in s.buffer both for -// reading and writing. Called for both directions. +// Read HTTP request line. +// Collect bytes in 'req' until +// request line is read. +// Injects HTTP header into a client's request -function baz(s) { - if (s.fromUpstream || matched) { +var my_header = 'Foo: foo'; +function header_inject(s) { + var req = ''; + s.on('upload', function(data, flags) { + req += data; + var n = req.search('\n'); + if (n != -1) { + var rest = req.substr(n + 1); + req = req.substr(0, n + 1); + s.send(req + my_header + '\r\n' + rest, flags); + s.off('upload'); + } + }); +} + +function access(s) { + if (s.remoteAddress.match('^192.*')) { + s.abort(); return; } - // Disable certain addresses. - - if (s.remoteAddress.match('^192.*')) { - return s.ERROR; - } - - // Read HTTP request line. - // Collect bytes in 'req' until request - // line is read. Clear current buffer to - // disable output. - - req = req + s.buffer; - s.buffer = ''; - - var n = req.search('\n'); - - if (n != -1) { - // Inject a new HTTP header. - var rest = req.substr(n + 1); - req = req.substr(0, n + 1); - - var addr = s.remoteAddress; - - s.log('req:' + req); - s.log('rest:' + rest); - - // Output the result and skip further - // processing. - - s.buffer = req + 'Foo: addr_' + addr + '\r\n' + rest; - matched = 1; - } -} - -function xyz(s) { - if (s.remoteAddress.match('^192.*')) { - return s.ABORT; - } + s.allow(); } </example> </para>
--- a/xml/index.xml Mon Sep 17 06:59:29 2018 +0000 +++ b/xml/index.xml Thu Sep 13 21:10:42 2018 +0300 @@ -7,6 +7,21 @@ <news name="nginx news" link="/" lang="en"> +<event date="2018-09-18"> +<para> +<link doc="en/docs/njs_about.xml">njs-0.2.4</link> +version has been released, featuring +<link doc="en/docs/njs/njs_api.xml" id="s_on">s.on()</link>, +<link doc="en/docs/njs/njs_api.xml" id="s_off">s.off()</link>, +<link doc="en/docs/njs/njs_api.xml" id="s_allow">s.allow()</link>, +<link doc="en/docs/njs/njs_api.xml" id="s_done">s.done()</link>, +<link doc="en/docs/njs/njs_api.xml" id="s_decline">s.decline()</link>, +<link doc="en/docs/njs/njs_api.xml" id="s_deny">s.deny()</link> +methods support +and <link doc="en/docs/njs/njs_changes.xml" id="njs0.2.4">more</link>. +</para> +</event> + <event date="2018-08-28"> <para> <link doc="en/download.xml">nginx-1.15.3</link>
--- a/xml/ru/docs/stream/ngx_stream_js_module.xml Mon Sep 17 06:59:29 2018 +0000 +++ b/xml/ru/docs/stream/ngx_stream_js_module.xml Thu Sep 13 21:10:42 2018 +0300 @@ -9,7 +9,7 @@ <module name="Модуль ngx_stream_js_module" link="/ru/docs/stream/ngx_stream_js_module.html" lang="ru" - rev="12"> + rev="13"> <section id="summary"> @@ -31,6 +31,13 @@ <section id="example" name="Пример конфигурации"> <para> +<note> +Данный пример необходимо использовать с +версией njs <link doc="../njs_changes.xml" id="njs-0.2.4">0.2.4</link>. +Для версий njs <link doc="../njs_changes.xml" id="njs-0.2.3">0.2.3</link> +и ранее необходимо использовать +<link doc="../njs_api.xml" id="example_legacy">этот</link> пример. +</note> <example> load_module modules/ngx_stream_js_module.so; ... @@ -38,22 +45,22 @@ stream { js_include stream.js; - js_set $foo foo; js_set $bar bar; + js_set $req_line req_line; server { listen 12345; - js_preread qux; - return $foo; + js_preread preread; + return $req_line; } server { listen 12346; - js_access xyz; + js_access access; proxy_pass 127.0.0.1:8000; - js_filter baz; + js_filter header_inject; } } @@ -71,76 +78,40 @@ <para> Файл <path>stream.js</path>: <example> -var req = ''; -var matched = 0; var line = ''; -function qux(s) { - var n = s.buffer.indexOf('\n'); - if (n == -1) { - return s.AGAIN; - } - - line = s.buffer.substr(0, n); -} - -function foo(s) { - return line; -} - function bar(s) { var v = s.variables; s.log("hello from bar() handler!"); - return "foo-var" + v.remote_port + "; pid=" + v.pid; + return "bar-var" + v.remote_port + "; pid=" + v.pid; +} + +function preread(s) { + s.on('upload', function (data, flags) { + var n = data.indexOf('\n'); + if (n != -1) { + line = data.substr(0, n); + s.done(); + } + }); } -// Фильтр обрабатывает один буфер за вызов. -// Буфер недоступен в s.buffer для -// чтения и записи. Вызывается в обоих направлениях. +function req_line(s) { + return line; +} -function baz(s) { - if (s.fromUpstream || matched) { +// Чтение строки HTTP-запроса. +// Получение байт в 'req' до того как +// будет прочитана строка запроса. +// Добавление HTTP-заголовка в запрос клиента + +function access(s) { + if (s.remoteAddress.match('^192.*')) { + s.abort(); return; } - // Отключение определённых адресов. - - if (s.remoteAddress.match('^192.*')) { - return s.ERROR; - } - - // Чтение строки HTTP-запроса. - // Получение байт в 'req' до того как - // будет прочитана строка запроса. Очистка текущего буфера - // для отключения вывода. - - req = req + s.buffer; - s.buffer = ''; - - var n = req.search('\n'); - - if (n != -1) { - // Вставка нового HTTP-заголовка. - var rest = req.substr(n + 1); - req = req.substr(0, n + 1); - - var addr = s.remoteAddress; - - s.log('req:' + req); - s.log('rest:' + rest); - - // Вывод результата и пропуск дальнейшей - // обработки. - - s.buffer = req + 'Foo: addr_' + addr + '\r\n' + rest; - matched = 1; - } -} - -function xyz(s) { - if (s.remoteAddress.match('^192.*')) { - return s.ABORT; - } + s.allow(); } </example> </para>