ngx_lua_module-1.0.5.1 (LUA编写网页脚本，支持windows和linux)
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注：最新版本在以下博客首发：
http://blog.csdn.net/ngwsx/
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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。
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更新说明：
*) 更改LUA表的名称，具体如下：
??? nginx.dbd变成nginx.database；
??? nginx.log变成nginx.logger；
??? nginx.req变成nginx.request；
??? nginx.resp变成nginx.response；
??? nginx.var变成nginx.variable。
*) 重新实现nginx.database表，原有函数全部去掉，新增execute函数，
??? 简化了LUA代码中的数据库操作。具体请查看下面示例代码的用法。
*)? ngx_lua_module模块核心代码的优化。
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特性：
*) 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。
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API说明：
*) nginx 表
*) 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的示例代码。
*) nginx.logger 表
??? Nginx日志接口的封装，允许在LUA代码写日志信息到Nginx的日志文件中。
??? 具体用法请查看下面的示例代码。
*) 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。
??? 具体用法请查看下面的示例代码。
*) nginx.response 表
??? 提供与HTTP响应有关的接口。
??? 具体用法请查看下面的示例代码。
*) ngnx.variable 表
??? 提供接口给LUA代码以获取Nginx的HTTP变量。
??? 具体用法请查看下面的示例代码。
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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。
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最新版本：
windows：https://github.com/downloads/hehaiqiang/ngwsx/ngx_lua_module-windows-1.0.5.1.rar
linux：https://github.com/downloads/hehaiqiang/ngwsx/ngx_lua_module-linux-1.0.5.1.tar.gz
历史版本：
https://github.com/hehaiqiang/ngwsx/downloads
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示例代码：
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index.lsp
<%local req = nginx.request--local name = req["name"]--local name = req.nameif req.method == req.GET then name = req.get["name"] name = req.get.nameelse name = req.post["name"] name = req.post.nameendname = 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>
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test_database.lsp
<%local print = printlocal nginx = nginxlocal req = nginx.requestlocal db = nginx.databaselocal 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_logger.lsp
<%local print = printlocal nginx = nginxlocal log = nginx.logger%><html><head></head><body><%-- writing some messages into the log file of the nginxlog.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>
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test_request.lsp
<%local print = printlocal nginx = nginxlocal req = nginx.requestlocal 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 }endfunction 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 1local two = req.two or 2local three = req.get["three"] or 3local four = req.get.four or 4%>hello, <%=one%><%=two%><%=three%><%=four%>!</body></html>?
test_response.lsp
<%local print = printlocal nginx = nginxlocal req = nginx.requestlocal resp = nginx.responseresp.content_type = "text/html"%><html><head><title></title></head><body><%local one = req["one"] or 1local two = req.two or 2local three = req.post["three"] or 3local 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>
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test_variable.lsp
<%local print = printlocal nginx = nginxlocal var = nginx.variablelocal 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>?
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