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Add example for a Lua file handler

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bel 2016-02-20 20:47:33 +01:00
parent 75fcc82daa
commit aa6dd2f84e
1 changed files with 93 additions and 0 deletions
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test/filehandler.lua Normal file
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function send_ok()
mg.write("HTTP/1.0 200 OK\r\n")
mg.write("Connection: close\r\n")
mg.write("Date: " .. os.date("%a, %d %b %Y %H:%M:%S GMT") .. "\r\n")
end
function send_not_found()
mg.write("HTTP/1.0 404 Not Found\r\n")
mg.write("Connection: close\r\n")
mg.write("Date: " .. os.date("%a, %d %b %Y %H:%M:%S GMT") .. "\r\n")
end
handler = "filehandler.lua"
sub_uri = mg.request_info.uri:sub(#handler+2)
filename = "D:\\civetweb\\civetweb" .. sub_uri
attr = lfs.attributes(filename)
--[[
if not attr then
send_not_found()
mg.write("\r\n")
mg.write("File " .. sub_uri .. " not available")
return
end
]]
if mg.request_info.request_method == "GET" then
-- send_file will handle 404 internally
mg.send_file(filename)
return
elseif mg.request_info.request_method == "HEAD" then
-- send_file can handle "GET" and "HEAD"
mg.send_file(filename)
return
elseif mg.request_info.request_method == "PUT" then
local f = io.open(filename, "w")
if (not f) then
mg.write("HTTP/1.0 500 Internal Server Error\r\n")
mg.write("Connection: close\r\n")
mg.write("Date: " .. os.date("%a, %d %b %Y %H:%M:%S GMT") .. "\r\n")
mg.write("\r\n")
return
end
mg.write("HTTP/1.0 201 Created\r\n")
mg.write("Connection: close\r\n")
mg.write("Date: " .. os.date("%a, %d %b %Y %H:%M:%S GMT") .. "\r\n")
mg.write("\r\n")
repeat
local buf = mg.read();
if (buf) then
f:write(buf)
end
until (not buf);
f:close()
mg.write("HTTP/1.0 201 Created\r\n")
mg.write("Connection: close\r\n")
mg.write("Date: " .. os.date("%a, %d %b %Y %H:%M:%S GMT") .. "\r\n")
mg.write("\r\n")
return
elseif mg.request_info.request_method == "DELETE" then
if not attr then
send_not_found()
mg.write("\r\n")
mg.write("File " .. sub_uri .. " not available")
return
end
os.remove(filename)
mg.write("HTTP/1.0 204 No Content\r\n")
mg.write("Connection: close\r\n")
mg.write("Date: " .. os.date("%a, %d %b %Y %H:%M:%S GMT") .. "\r\n")
mg.write("\r\n")
return
elseif mg.request_info.request_method == "OPTIONS" then
send_ok()
mg.write("Allow: GET, HEAD, PUT, DELETE, OPTIONS\r\n")
mg.write("\r\n")
return
else
mg.write("HTTP/1.0 405 Method Not Allowed\r\n")
mg.write("Connection: close\r\n")
mg.write("Date: " .. os.date("%a, %d %b %Y %H:%M:%S GMT") .. "\r\n")
mg.write("\r\n")
return
end