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- -- Set keep_alive. The return value specifies if this is possible at all.
- canKeepAlive = mg.keep_alive(true)
- now = os.date("!%a, %d %b %Y %H:%M:%S")
- -- First send the http headers
- mg.write("HTTP/1.1 200 OK\r\n")
- mg.write("Content-Type: text/html\r\n")
- mg.write("Date: " .. now .. " GMT\r\n")
- mg.write("Last-Modified: " .. now .. " GMT\r\n")
- if not canKeepAlive then
- mg.write("Connection: close\r\n")
- mg.write("\r\n")
- mg.write("<html><body>Keep alive not possible!</body></html>")
- return
- end
- if mg.request_info.http_version ~= "1.1" then
- -- wget will use HTTP/1.0 and Connection: keep-alive, so chunked transfer is not possible
- mg.write("Connection: close\r\n")
- mg.write("\r\n")
- mg.write("<html><body>Chunked transfer is only possible for HTTP/1.1 requests!</body></html>")
- mg.keep_alive(false)
- return
- end
- -- use chunked encoding (http://www.jmarshall.com/easy/http/#http1.1c2)
- mg.write("Cache-Control: max-age=0, must-revalidate\r\n")
- --mg.write("Cache-Control: no-cache\r\n")
- --mg.write("Cache-Control: no-store\r\n")
- mg.write("Connection: keep-alive\r\n")
- mg.write("Transfer-Encoding: chunked\r\n")
- mg.write("\r\n")
- -- function to send a chunk
- function send(str)
- local len = string.len(str)
- mg.write(string.format("%x\r\n", len))
- mg.write(str.."\r\n")
- end
- -- send the chunks
- send("<html>")
- send("<head><title>Civetweb Lua script chunked transfer test page</title></head>")
- send("<body><pre>")
- send("1234567890")
- send("</pre></body>")
- send("</html>")
- -- end
- send("")
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