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63 lines
1.4 KiB
Lua
63 lines
1.4 KiB
Lua
-- dvt <diman.todorov@gmail.com>
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-- See nmaps COPYING for licence
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id = "HTML title"
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description = "Connects to an HTTP server and extracts the title of the default page."
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author = "Diman Todorov <diman.todorov@gmail.com>"
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license = "See nmaps COPYING for licence"
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categories = {"demo", "safe"}
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require "shortport"
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portrule = shortport.port_or_service(80, "http")
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--portrule = function(host, port)
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-- return shortport.port_or_service(port, 80, "http")
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--end
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action = function(host, port)
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local url, socket, request, result, status, s, title
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url = "http://" .. host.name
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socket = nmap.new_socket()
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socket:connect(host.ip, port.number)
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request = "GET / HTTP/1.0\r\n\r\n"
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socket:send(request)
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result = ""
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while true do
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status, s = socket:receive_lines(1)
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if not status then
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break
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end
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result = result .. s
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end
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socket:close()
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-- watch out, this doesn't really work for all html tags
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-- also string.lower consumes the /
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result = string.gsub(result, "</?(%a+)>", function(c) return "<" .. string.lower(c) .. ">" end)
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title = string.match(result, "<title>(.+)<title>")
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if title ~= nil then
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result = string.gsub(title , "[\n\r\t]", "")
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if string.len(title) > 50 then
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nmap.print_debug_unformatted("showHTMLTitle.nse: Title got truncated!");
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result = string.sub(result, 1, 62) .. "..."
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end
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else
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result = "Site doesn't have a title."
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end
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return result
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end
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