基于Openresty搭建本地简易文档中心

品茗IT

发布于 2023-10-22 15:15:08

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发布于 2023-10-22 15:15:08

文章被收录于专栏：品茗IT品茗IT

基于Openresty搭建本地简易文档中心

一、概述

OpenResty 是一个强大的 Web 应用服务器，Web 开发人员可以使用 Lua 脚本语言调动 Nginx 支持的各种 C 以及 Lua 模块,更主要的是在性能方面，OpenResty可以快速构造出足以胜任 10K 以上并发连接响应的超高性能 Web 应用系统。

Nginx 是俄罗斯人发明的， Lua 是巴西几个教授发明的，中国人章亦春把 LuaJIT VM 嵌入到 Nginx 中，实现了 OpenResty 这个高性能服务端解决方案。

Openresty其实只是个软件包，它基于nginx+lua模块，集成了大量精良的 Lua 库、第三方模块以及大多数的依赖项。

地址： http://openresty.org/cn/download.html

这篇文章：Openresty能帮我们做什么介绍了如何使用OpenResty。

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二、运行OpenResty

windows上进入目录直接执行./nginx.exe，和普通nginx使用方法一样。

这时候，我们如果配置md转发：

location /md/ {
    alias D:/mdfile/;
    index index.md;
    default_type text/html;
}

重启nginx，nginx -s reload, 这时，我们访问http://127.0.0.1/md/index.md 得到的只是一个下载链接。

三、markdown转html

下面是一个简易的lua脚本，可以用html展示md文件。

location /static/ {
    alias D:/static/;
}
location /md/ {
    alias D:/mdfile/;
    index index.md;
    default_type text/html;

    if (-e $request_filename) {
        header_filter_by_lua_block {
            ngx.header.content_length = nil
        }
        set_by_lua_block $header {
         local header=[[<!DOCTYPE html>
            <html>
            <head>
            <meta charset="UTF-8">
            <meta http-equiv="X-UA-Compatible" content="IE=edge, chrome=1">
            <meta name="renderer" content="webkit">
            <meta name="author" content="mrasong">
            <meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,user-scalable=0">
            <title>API DOCS</title>
            <link rel="stylesheet" href="/static/css/github-markdown.min.css">
            <style type="text/css">
            .markdown-body {
                box-sizing: border-box;
                max-width: 980px;
                margin: 0 auto;
                padding: 16px;
            }
            .markdown-body pre>code,
            .markdown-body pre code,
            .markdown-body pre,
            .markdown-body code {
                white-space: pre-wrap;
                word-break: break-all;
            }

            @media (max-width: 767px) {
                .markdown-body {
                    padding: 15px;
                }
            }
            </style>
            </head>
            <body>
            <script id="markdown" type="text/markdown">]]
            return header
        }

        set_by_lua_block $footer {
              local footer = [[</script>
                <main id="content" class="markdown-body"></main>
                <script src="https://lib.baomitu.com/marked/0.8.2/marked.min.js"></script>
                <script src="https://lib.baomitu.com/jquery/1.12.4/jquery.min.js"></script>
                <script>
                (function(d,w) {
                var gid = function(id){ return d.getElementById(id) };
                gid('content').innerHTML = marked.parse(gid('markdown').innerHTML);
                })(document, window);
                </script>
                </body>
                </html>]]
                return footer
        }
        echo_before_body $header;
        echo_after_body $footer;
    }
}

这里

-e $request_filename判断文件是否存在；
echo_before_body，echo_after_body - 页面前、后插入内容
set_by_lua_block 设置变量值。

这里用到了一个github-markdown.min.css是对页面进行美化。内容如下：

/**
 * Minified by jsDelivr using clean-css v5.3.1.
 * Original file: /npm/github-markdown-css@5.2.0/github-markdown.css
 *
 * Do NOT use SRI with dynamically generated files! More information: https://www.jsdelivr.com/using-sri-with-dynamic-files
 */
/*
* 提示：该行代码过长，系统自动注释不进行高亮。一键复制会移除系统注释 
* @media (prefers-color-scheme:dark){.markdown-body{color-scheme:dark;--color-prettylights-syntax-comment:#8b949e;--color-prettylights-syntax-constant:#79c0ff;--color-prettylights-syntax-entity:#d2a8ff;--color-prettylights-syntax-storage-modifier-import:#c9d1d9;--color-prettylights-syntax-entity-tag:#7ee787;--color-prettylights-syntax-keyword:#ff7b72;--color-prettylights-syntax-string:#a5d6ff;--color-prettylights-syntax-variable:#ffa657;--color-prettylights-syntax-brackethighlighter-unmatched:#f85149;--color-prettylights-syntax-invalid-illegal-text:#f0f6fc;--color-prettylights-syntax-invalid-illegal-bg:#8e1519;--color-prettylights-syntax-carriage-return-text:#f0f6fc;--color-prettylights-syntax-carriage-return-bg:#b62324;--color-prettylights-syntax-string-regexp:#7ee787;--color-prettylights-syntax-markup-list:#f2cc60;--color-prettylights-syntax-markup-heading:#1f6feb;--color-prettylights-syntax-markup-italic:#c9d1d9;--color-prettylights-syntax-markup-bold:#c9d1d9;--color-prettylights-syntax-markup-deleted-text:#ffdcd7;--color-prettylights-syntax-markup-deleted-bg:#67060c;--color-prettylights-syntax-markup-inserted-text:#aff5b4;--color-prettylights-syntax-markup-inserted-bg:#033a16;--color-prettylights-syntax-markup-changed-text:#ffdfb6;--color-prettylights-syntax-markup-changed-bg:#5a1e02;--color-prettylights-syntax-markup-ignored-text:#c9d1d9;--color-prettylights-syntax-markup-ignored-bg:#1158c7;--color-prettylights-syntax-meta-diff-range:#d2a8ff;--color-prettylights-syntax-brackethighlighter-angle:#8b949e;--color-prettylights-syntax-sublimelinter-gutter-mark:#484f58;--color-prettylights-syntax-constant-other-reference-link:#a5d6ff;--color-fg-default:#c9d1d9;--color-fg-muted:#8b949e;--color-fg-subtle:#6e7681;--color-canvas-default:#0d1117;--color-canvas-subtle:#161b22;--color-border-default:#30363d;--color-border-muted:#21262d;--color-neutral-muted:rgba(110,118,129,0.4);--color-accent-fg:#58a6ff;--color-accent-emphasis:#1f6feb;--color-attention-subtle:rgba(187,128,9,0.15);--color-danger-fg:#f85149}}@media (prefers-color-scheme:light){.markdown-body{color-scheme:light;--color-prettylights-syntax-comment:#6e7781;--color-prettylights-syntax-constant:#0550ae;--color-prettylights-syntax-entity:#8250df;--color-prettylights-syntax-storage-modifier-import:#24292f;--color-prettylights-syntax-entity-tag:#116329;--color-prettylights-syntax-keyword:#cf222e;--color-prettylights-syntax-string:#0a3069;--color-prettylights-syntax-variable:#953800;--color-prettylights-syntax-brackethighlighter-unmatched:#82071e;--color-prettylights-syntax-invalid-illegal-text:#f6f8fa;--color-prettylights-syntax-invalid-illegal-bg:#82071e;--color-prettylights-syntax-carriage-return-text:#f6f8fa;--color-prettylights-syntax-carriage-return-bg:#cf222e;--color-prettylights-syntax-string-regexp:#116329;--color-prettylights-syntax-markup-list:#3b2300;--color-prettylights-syntax-markup-heading:#0550ae;--color-prettylights-syntax-markup-italic:#24292f;--color-prettylights-syntax-markup-bold:#24292f;--color-prettylights-syntax-markup-deleted-text:#82071e;--color-prettylights-syntax-markup-deleted-bg:#ffebe9;--color-prettylights-syntax-markup-inserted-text:#116329;--color-prettylights-syntax-markup-inserted-bg:#dafbe1;--color-prettylights-syntax-markup-changed-text:#953800;--color-prettylights-syntax-markup-changed-bg:#ffd8b5;--color-prettylights-syntax-markup-ignored-text:#eaeef2;--color-prettylights-syntax-markup-ignored-bg:#0550ae;--color-prettylights-syntax-meta-diff-range:#8250df;--color-prettylights-syntax-brackethighlighter-angle:#57606a;--color-prettylights-syntax-sublimelinter-gutter-mark:#8c959f;--color-prettylights-syntax-constant-other-reference-link:#0a3069;--color-fg-default:#24292f;--color-fg-muted:#57606a;--color-fg-subtle:#6e7781;--color-canvas-default:#ffffff;--color-canvas-subtle:#f6f8fa;--color-border-default:#d0d7de;--color-border-muted:hsla(210,18%,87%,1);--color-neutral-muted:rgba(175,184,193,0.2);--color-accent-fg:#0969da;--color-accent-emphasis:#0969da;--color-attention-subtle:#fff8c5;--color-danger-fg:#cf222e}}.markdown-body{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%;margin:0;color:var(--color-fg-default);background-color:var(--color-canvas-default);font-family:-apple-system,BlinkMacSystemFont,"Segoe 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abbr[title]{border-bottom:none;text-decoration:underline dotted}.markdown-body b,.markdown-body strong{font-weight:var(--base-text-weight-semibold,600)}.markdown-body dfn{font-style:italic}.markdown-body h1{margin:.67em 0;font-weight:var(--base-text-weight-semibold,600);padding-bottom:.3em;font-size:2em;border-bottom:1px solid var(--color-border-muted)}.markdown-body mark{background-color:var(--color-attention-subtle);color:var(--color-fg-default)}.markdown-body small{font-size:90%}.markdown-body sub,.markdown-body sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}.markdown-body sub{bottom:-.25em}.markdown-body sup{top:-.5em}.markdown-body img{border-style:none;max-width:100%;box-sizing:content-box;background-color:var(--color-canvas-default)}.markdown-body code,.markdown-body kbd,.markdown-body pre,.markdown-body samp{font-family:monospace;font-size:1em}.markdown-body figure{margin:1em 40px}.markdown-body hr{box-sizing:content-box;overflow:hidden;background:0 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h6{margin-top:24px;margin-bottom:16px;font-weight:var(--base-text-weight-semibold,600);line-height:1.25}.markdown-body h2{font-weight:var(--base-text-weight-semibold,600);padding-bottom:.3em;font-size:1.5em;border-bottom:1px solid var(--color-border-muted)}.markdown-body h3{font-weight:var(--base-text-weight-semibold,600);font-size:1.25em}.markdown-body h4{font-weight:var(--base-text-weight-semibold,600);font-size:1em}.markdown-body h5{font-weight:var(--base-text-weight-semibold,600);font-size:.875em}.markdown-body h6{font-weight:var(--base-text-weight-semibold,600);font-size:.85em;color:var(--color-fg-muted)}.markdown-body p{margin-top:0;margin-bottom:10px}.markdown-body blockquote{margin:0;padding:0 1em;color:var(--color-fg-muted);border-left:.25em solid var(--color-border-default)}.markdown-body ol,.markdown-body ul{margin-top:0;margin-bottom:0;padding-left:2em}.markdown-body ol ol,.markdown-body ul ol{list-style-type:lower-roman}.markdown-body ol ol ol,.markdown-body ol ul 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