mg.write("HTTP/1.0 200 OK\r\n")
mg.write("Content-Type: text/html\r\n")
mg.write("\r\n")
mg.write([[
This is Lua script example 2, served by the
CivetWeb web server,
version ]] .. mg.version .. [[.
The following features are available:
]])
demo_data = {}
function print_if_available(tab, name)
if tab then
mg.write("- " .. name .. " available
\n")
if type(tab)=="table" then
demo_data[name] = {}
demo_data[name][0] = name
for nname,nval in pairs(tab) do
demo_data[name][nname] = type(nval)
end
else
demo_data[name] = type(tab)
end
else
mg.write("- " .. name .. " not available
\n")
end
end
function recurse(tab, excl)
excl = excl or {}
mg.write("\n")
for k,v in pairs(tab) do
if type(v) == "table" then
mg.write("- " .. tostring(k) .. ":
\n")
if excl[v] then
-- cyclic
else
excl[v] = true
recurse(v, excl)
excl[v] = false
end
else
mg.write("- " .. tostring(k) .. " = " .. tostring(v) .. "
\n")
end
end
mg.write("
\n")
end
-- Print Lua version and available libraries
mg.write("- " .. _VERSION .. " with the following standard libraries
\n")
mg.write("\n")
libs = {"string", "math", "table", "io", "os", "bit32", "utf8", "package", "coroutine", "debug"};
for _,n in ipairs(libs) do
print_if_available(_G[n], n);
end
mg.write("
\n")
print_if_available(sqlite3, "SQLite3 binding (sqlite3)")
print_if_available(lfs, "LuaFileSystem (lfs)")
print_if_available(json, "JSON binding (json)")
print_if_available(xml, "LuaXML (xml)")
print_if_available(shared, "Lua shared data (shared)")
--recurse(_G)
-- Print mg library
libname = "mg"
print_if_available(_G[libname], libname .. " library")
recurse(_G[libname])
-- Print connect function
print_if_available(connect, "connect function")
-- Get all server options
mg.write("- server options
\n")
recurse(mg.get_option())
-- Print some data from random generators
if mg.uuid then
mg.write("- random data
\n")
local t = {GUID = mg.uuid(), random = mg.random()}
recurse(t)
end
-- Print loaded packages known to Lua
if package and (type(package.loaded)=="table") then
if #package.loaded > 0 then
mg.write("- loaded packages
\n")
recurse(package.loaded)
else
mg.write("- loaded packages: none
\n")
end
end
-- Print preloaded packages known to Lua
if xml then
mg.write("- xml
\n")
recurse(xml)
end
-- Current date/time
mg.write("
\n");
mg.write(" Today is " .. os.date("%A") .. "
\n");
-- Request content
mg.write("\n
\n")
l = mg.request_info.content_length
if l then
mg.write("Content-Length = "..l..":
\n
\n")
mg.write(mg.read())
mg.write("\n\n\n")
else
mg.write("not request content available
\n")
end
-- Directory listing
mg.write("\n
\n")
mg.write("\n");
if not lfs then
mg.write("lfs not available\n")
else
mg.write("Files in " .. lfs.currentdir())
mg.write("\n
\n")
local cnt = 0
for f in lfs.dir(".") do
cnt = cnt + 1
if (cnt < 6) then
local mime = mg.get_mime_type(f)
mg.write("- " .. f .. " (" .. mime .. ")
\n")
local at = lfs.attributes(f);
recurse(at)
end
end
mg.write("
\n")
mg.write(string.format("\n", cnt))
end
mg.write("\n")
function htmlEsc(txt)
s = txt:gsub("%&", "&")
s = s:gsub("%<", "<")
s = s:gsub("%>", ">")
return (s)
end
function printTable(tab, indent)
indent = indent or 0
for k,v in pairs(tab) do
if (type(v)=="table") then
mg.write(string.rep(" ", indent) .. tostring(k) .. ":\n")
printTable(v, indent + 1)
else
mg.write(string.rep(" ", indent) .. tostring(k) .. "\t" .. v .. "\n")
end
end
end
-- xml test
if (xml) then
mg.write("\n
\n")
mg.write("xml2lua:
\n
\n");
xmlstr = [[sub1valsubsubval]]
xmlev = xml.eval(xmlstr)
mg.write(htmlEsc(xmlstr))
mg.write("\n-->\n")
mg.write(type(xmlev) .. ":\n")
mg.write(printTable(xmlev, 1))
mg.write("
\n\n")
mg.write("lua2xml:
\n
\n");
mg.write(htmlEsc(xml.str(xmlev, 1, "xml")))
mg.write("\n\n")
mg.write("lua2xml:
\n
\n");
mg.write(htmlEsc(xml.str(demo_data, 1, "xml")))
mg.write("\n\n")
end
mg.write([[
]])