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61 lines
1.7 KiB
Lua
61 lines
1.7 KiB
Lua
-- dvt <diman.todorov@gmail.com>
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-- Same as Nmap--See http://nmap.org/book/man-legal.html
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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 = "Same as Nmap--See http://nmap.org/book/man-legal.html"
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categories = {"default", "demo", "safe"}
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require 'http'
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require 'url'
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portrule = function(host, port)
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if not (port.service == 'http' or port.service == 'https') then
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return false
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end
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-- Don't bother running on SSL ports if we don't have SSL.
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if (port.service == 'https' or port.version.service_tunnel == 'ssl')
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and not nmap.have_ssl() then
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return false
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end
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return true
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end
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action = function(host, port)
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local data, result, title, protocol
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data = http.get( host, port, '/' )
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-- follow ONE redirect if host is not some other host
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if data.status == 301 or data.status == 302 then
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local url = url.parse( data.header.location )
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if url.host == host.targetname or url.host == ( host.name ~= '' and host.name ) or url.host == host.ip then
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stdnse.print_debug("showHTMLTitle.nse: Default page is located at " .. url.scheme.. "://" .. url.authority .. url.path)
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data = http.get( host, port, url.path )
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end
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end
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result = data.body
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-- watch out, this doesn't really work for all html tags
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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) > 65 then
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stdnse.print_debug("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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