ngx_lua_module是一个nginx http模块，它把lua解析器内嵌到nginx，用来解析并执行lua语言编写的网页后台脚本。
特性：
*) 支持Windows和Linux平台。
*) 支持高并发高性能。
*) HTML网页中内嵌LUA脚本代码，类似于PHP。
*) 支持非阻塞的数据库操作，目前只支持MYSQL。
*) 支持异步的文件IO操作。
*) 支持非阻塞的SOCKET IO操作。
API简介：
*) nginx 表
提供一些实用函数，例如URI转换、BASE64编解码、CRC校验、MURMURHASH2、MD5和SHA1。 具体用法请查看下面示例代码。
*) nginx.database 表
提供数据库操作的接口，这些接口的内部实现是基于非阻塞模式的，
因此不会阻塞Nginx的事件处理，可以支持比较高的并发。
具体用法请查看下面示例代码。
*) nginx.file 表
提供文件操作的接口，这些接口的内部实现是基于异步IO模式的，
*) nginx.logger 表
Nginx日志接口的封装，允许在LUA代码中写日志信息到Nginx的日志文件。
*) nginx.request 表
提供与HTTP请求有关的接口，可以获取请求参数、请求头和Cookie值，等等。
*) nginx.response 表 提供与HTTP响应有关的接口。
*) nginx.socket 表
提供SOCKET操作的接口，这些接口的内部实现是基于非阻塞IO模式的，
*) nginx.variable 表
提供接口给LUA代码以获取Nginx的HTTP变量。
TODO：
*) API说明文档。
*) 更多实用功能的LUA表和接口实现，
例如多台机器之间会话(Session)共享的透明处理。
下载：
https://github.com/hehaiqiang/ngwsx/downloads
示例代码：
index.lsp
<% local req = nginx.request --local name = req["name"] --local name = req.name if req.method == req.GET then name = req.get["name"] name = req.get.name else name = req.post["name"] name = req.post.name end name = name or "world" %> <html> <head><title>hello, <%=name%>!</title></head> <body> hello, <%=name%>! <hr> <form action="index.lsp" method="post"> <input type="text" name="name"/> <input type="submit" value="submit"/> </form> </body> </html>
test_core.lsp
<% local nginx = nginx %> <html> <head> </head> <body> <% local uri = "id=你好&title=世界" local escaped_uri = nginx.escape_uri(uri) local unescaped_uri = nginx.unescape_uri(escaped_uri) local str = "dsdsdtdkslddfsdfdffdfsdfsdfweijqawlkrklekefwklksldksksd" local encoded_base64 = nginx.encode_base64(str) local decoded_base64 = nginx.decode_base64(encoded_base64) local crc16 = nginx.crc16(str) or "crc16 error"; local crc32 = nginx.crc32(str) or "crc32 error"; local murmur_hash2 = nginx.murmur_hash2(str) or "murmur_hash2 error" local md5 = nginx.md5(str) or "md5 error" local sha1 = nginx.sha1(str) or "sha1 error" %> URI escape test<br/><%=uri%><br/><%=escaped_uri%> <hr> URI unescape test<br/><%=escaped_uri%><br/><%=unescaped_uri%> <hr> BASE64 encode test<br/><%=str%><br/><%=encoded_base64%> <hr> BASE64 decode test<br/><%=encoded_base64%><br/><%=decoded_base64%> <hr> CRC16 test<br/><%=str%><br/><%=crc16%> <hr> CRC32 test<br/><%=str%><br/><%=crc32%> <hr> MURMURHASH2 test<br/><%=str%><br/><%=murmur_hash2%> <hr> MD5 test<br/><%=str%><br/><%=md5%> <hr> SHA1 test<br/><%=str%><br/><%=sha1%> </body> </html>
test_database.lsp
<% local print = print local nginx = nginx local req = nginx.request local db = nginx.database local res = db.execute({ driver = "libdrizzle", host = "127.0.0.1", port = 3306, user = "root", password = "123456", database = "mysql", sql = "show databases" }) %> <html> <head> </head> <body> err: <%=res.err%> <br/> errstr: <%=res.errstr%> <br/> col_count: <%=res.col_count or ""%> <br/> row_count: <%=res.row_count or ""%> <br/> affected_rows: <%=res.affected_rows or ""%> <br/> insert_id: <%=res.insert_id or ""%> <br/> <% if res.err ~= 0 then print("error") return end %> <hr> <table border="1"> <tr> <% for i=1,#res.columns do %> <td><b><%=res.columns[i]%></b></td> <% end %> </tr> <% for r=1,#res.rows do %> <tr> <% for i=1,#res.rows[r] do %> <td><%=res.rows[r][i]%></td> <% end %> </tr> <% end %> </table> <hr> request_time: <%=req.request_time%>ms </body> </html>
test_file.lsp
<% local nginx = nginx local file = nginx.file %> <html> <head> </head> <body> <% local f = file.open("c:/test.txt") %> <% local n,res = f:read() %> n: <%=n%> <br/> res: <%=res%> <hr> <% local n,err = f:write("kdkdksldskdlsdkkkkkkkkkkkkkkkkkkkkkkkkkk") %> n: <%=n%> <br/> err: <%=err or ""%> <hr> <% f:close() %> </body> </html>
test_logger.lsp
<% local print = print local nginx = nginx local log = nginx.logger %> <html> <head> </head> <body> <% -- writing some messages into the log file of the nginx log.error(log.ALERT, "test alert" .. 1 .. 10) log.debug(log.DEBUG_HTTP, "test debug http") log.error(log.ERR, "test error") log.error(log.EMERG, 1000) %> please opening the log file of the nginx to view messages. </body> </html>
test_request.lsp
<% local print = print local nginx = nginx local req = nginx.request local get_req_members = function() return { uri = req.uri, args = req.args, host = req.host, exten = req.exten, method = req.method, referer = req.referer, user_agent = req.user_agent, method_name = req.method_name, request_time = req.request_time .. "ms", request_line = req.request_line, unparsed_uri = req.unparsed_uri, http_protocol = req.http_protocol } end function get_headers_members() local headers = req.headers return { host = headers.host, user_agent = headers.user_agent } end %> <html> <head> </head> <body> <table border="1"> <% for k,v in pairs(get_req_members()) do %> <tr><td><%=k%></td><td><%=v%></td></tr> <% end %> </table> <hr> <table border="1"> <% for k,v in pairs(get_headers_members()) do %> <tr><td><%=k%></td><td><%=v%></td></tr> <% end %> </table> <% -- TODO: test the table "req.cookies" %> <hr> <% local one = req["one"] or 1 local two = req.two or 2 local three = req.get["three"] or 3 local four = req.get.four or 4 %> hello, <%=one%><%=two%><%=three%><%=four%>! </body> </html>
test_response.lsp
<% local print = print local nginx = nginx local req = nginx.request local resp = nginx.response resp.content_type = "text/html" %> <html> <head><title></title></head> <body> <% local one = req["one"] or 1 local two = req.two or 2 local three = req.post["three"] or 3 local four = req.post.four or 4 %> hello, <%=one%><%=two%><%=three%><%=four%>! <hr> <form action="test_response.lsp" method="post"> <input type="text" name="one"/> <input type="text" name="two"/> <input type="text" name="three"/> <input type="text" name="four"/> <input type="submit" value="submit"/> </form> <hr> </body> </html>
test_socket.lsp
<% local nginx = nginx local resp = nginx.response local socket = nginx.socket resp.content_type = "text/html" %> <% local s = socket.open("www.nginx.org", 80) %> <%=s:send("GET / HTTP/1.1\r\nHost: www.nginx.org\r\n\r\n") or "send error"%> <hr> <% local n,res = s:recv() %> <%=n or "recv error"%> <hr> <%=res or "recv error"%> <hr> <% n,res = s:recv() %> <%=n or "recv error"%> <hr> <%=res or "recv error"%> <hr> <% n,res = s:recv() %> <%=n or "recv error"%> <hr> <%=res or "recv error"%> <% s:close() %>
test_variable.lsp
<% local print = print local nginx = nginx local var = nginx.variable local array = { --var.arg_PARAMETER or "", args = var.args or "", binary_remote_addr = var.binary_remote_addr or "", body_bytes_sent = var.body_bytes_sent or "", content_length = var.content_length or "", content_type = var.content_type or "", --var.cookie_COOKIE or "", document_root = var.document_root or "", document_uri = var.document_uri or "", host = var.host or "", hostname = var.hostname or "", --var.http_HEADER or "", user_agent = var.http_user_agent or "", is_args = var.is_args or "", limit_rate = var.limit_rate or "", nginx_version = var.nginx_version or "", query_string = var.query_string or "", remote_addr = var.remote_addr or "", remote_port = var.remote_port or "", remote_user = var.remote_user or "", request_filename = var.request_filename or "", request_body = var.request_body or "", request_body_file = var.request_body_file or "", request_completion = var.request_completion or "", request_method = var.request_method or "", request_uri = var.request_uri or "", scheme = var.scheme or "", server_addr = var.server_addr or "", server_name = var.server_name or "", server_port = var.server_port or "", server_protocol = var.server_protocol or "", uri = var.uri or "" } %> <html> <head> </head> <body> <%=#array%> <hr> <table border="1"> <% for k,v in pairs(array) do %> <tr><td><%=k%></td><td><%=v%></td></tr> <% end %> </table> </body> </html>
