mirror of
https://github.com/YunoHost/SSOwat.git
synced 2024-09-03 20:06:27 +02:00
Refactoring + serving file from lua
This commit is contained in:
Kload
parent
8aecbb9967
commit
366294502c
4 changed files with 362 additions and 114 deletions
289
access.lua
289
access.lua
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@ -12,9 +12,130 @@ table.insert(conf["skipped_urls"], conf["portal_domain"]..conf["portal_path"])
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-- Dummy intructions
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ngx.header["X-SSO-WAT"] = "You've just been SSOed"
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--
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-- Routing
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--
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-- Logging in/out
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-- i.e. http://mydomain.org/?ssologin=myuser
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if ngx.var.request_method == "GET" then
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local args = ngx.req.get_uri_args()
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-- In login loop
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local user = args.ssologin
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if user and login[user] then
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return login_walkthrough(user)
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end
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-- In logout loop
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user = args.ssologout
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if user and logout[user] then
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return logout_walkthrough(user)
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end
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end
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-- Portal
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-- i.e. http://mydomain.org/ssowat/*
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if ngx.var.host == conf["portal_domain"]
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and string.starts(ngx.var.uri, conf["portal_path"])
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then
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if ngx.var.request_method == "GET" then
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uri_args = ngx.req.get_uri_args()
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if uri_args.action and uri_args.action == 'logout' then
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-- Logout
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return do_logout()
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elseif check_cookie() or ngx.var.uri == conf["portal_path"] then
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-- Serve normal portal
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return serve(ngx.var.uri)
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else
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-- Redirect to portal
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return redirect(portal_url)
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end
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elseif ngx.var.request_method == "POST" then
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if string.starts(ngx.var.http_referer, portal_url) then
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-- CSRF protection
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return do_login()
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else
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-- Redirect to portal
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return redirect(portal_url)
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end
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end
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-- Skipped urls
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-- i.e. http://mydomain.org/no_protection/
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for _, url in ipairs(conf["skipped_urls"]) do
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if string.starts(ngx.var.host..ngx.var.uri, url) then
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return pass()
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end
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end
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-- Unprotected urls
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-- i.e. http://mydomain.org/no_protection+headers/
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for _, url in ipairs(conf["unprotected_urls"]) do
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if string.starts(ngx.var.host..ngx.var.uri, url) then
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if check_cookie() then
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set_headers(ngx.var.cookie_SSOwAuthUser)
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end
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return pass()
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end
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end
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-- Cookie validation
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--
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if check_cookie() then
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set_headers(ngx.var.cookie_SSOwAuthUser)
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return pass
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else
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delete_cookie()
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end
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-- Login with HTTP Auth if credentials are brought
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--
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local auth_header = ngx.req.get_headers()["Authorization"]
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if auth_header then
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_, _, b64_cred = string.find(auth_header, "^Basic%s+(.+)$")
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_, _, user, password = string.find(ngx.decode_base64(b64_cred), "^(.+):(.+)$")
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if authenticate(user, password) then
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set_headers(user)
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return pass()
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end
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end
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-- Else redirect to portal
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--
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local back_url = ngx.var.scheme .. "://" .. ngx.var.http_host .. ngx.var.uri
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return redirect(portal_url.."?r="..ngx.encode_base64(back_url))
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--
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-- Useful functions
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--
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function read_file(file)
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local f = io.open(file, "rb")
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if not f then return false
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local content = f:read("*all")
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f:close()
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return content
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end
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function is_in_table (t, v)
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for key, value in ipairs(t) do
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if value == v then return key end
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@ -136,34 +257,57 @@ function set_headers (user)
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end
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function display_login_form ()
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local args = ngx.req.get_uri_args()
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ngx.req.set_header("Cache-Control", "no-cache")
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-- Yo dawg
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function serve(uri)
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rel_path = string.gsub(uri, conf["portal_path"], "/")
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if args.action and args.action == 'logout' then
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if check_cookie() then
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local redirect_url = portal_url
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if args.r then
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redirect_url = ngx.decode_base64(args.r)
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end
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local user = ngx.var.cookie_SSOwAuthUser
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logout[user] = {}
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logout[user]["redirect_url"] = redirect_url
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logout[user]["domains"] = {}
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for _, value in ipairs(conf["domains"]) do
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table.insert(logout[user]["domains"], value)
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end
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return redirect(ngx.var.scheme.."://"..ngx.var.http_host.."/?ssologout="..user)
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end
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-- Load login.html as index
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if rel_path == "/" then
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rel_path = "/login.html"
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end
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-- Set redirect
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if args.r then
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set_redirect_cookie(ngx.decode_base64(args.r))
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ngx.header["Set-Cookie"] = cookies
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content = read_file(script_path.."portal/"..rel_path)
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if not content then
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ngx.exit(ngx.HTTP_NOT_FOUND)
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end
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-- Extract file extension
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_, file, ext = string.match(uri, "(.-)([^\\/]-%.?([^%.\\/]*))$")
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-- Associate to MIME type
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mime_types = {
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html = "text/html",
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js = "text/javascript",
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css = "text/css",
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gif = "image/gif",
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jpg = "image/jpeg",
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png = "image/png",
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svg = "image/svg+xml",
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ico = "image/vnd.microsoft.icon",
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}
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-- Set Content-Type
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if mime_types[ext] then
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ngx.header["Content-Type"] = mime_types[ext]
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else
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ngx.header["Content-Type"] = "text/plain"
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end
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-- Render as mustache
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if ext == "html" then
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data = get_data_for(file)
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content = string.gsub(hige.render(content, data), "</html>(%d+)", "</html>")
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end
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ngx.header["Cache-Control"] = "no-cache"
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return
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ngx.say(content)
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ngx.exit(ngx.HTTP_OK)
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end
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function get_data_for(view)
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if view == "login.html" then
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return { flash = "Meh" }
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end
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end
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function do_login ()
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@ -171,10 +315,8 @@ function do_login ()
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local args = ngx.req.get_post_args()
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local uri_args = ngx.req.get_uri_args()
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if string.starts(ngx.var.http_referer, portal_url) then
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ngx.status = ngx.HTTP_CREATED
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if authenticate(args.user, args.password) then
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ngx.status = ngx.HTTP_CREATED
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local redirect_url = ngx.var.cookie_SSOwAuthRedirect
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if uri_args.r then
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redirect_url = ngx.decode_base64(uri_args.r)
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@ -189,9 +331,29 @@ function do_login ()
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-- Connect to the first domain (self)
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return redirect(ngx.var.scheme.."://"..ngx.var.http_host.."/?ssologin="..args.user)
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end
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end
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else
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ngx.status = ngx.HTTP_UNAUTHORIZED
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return redirect(portal_url)
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end
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end
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function do_logout()
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local args = ngx.req.get_uri_args()
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ngx.req.set_header("Cache-Control", "no-cache")
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if check_cookie() then
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local redirect_url = portal_url
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if args.r then
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redirect_url = ngx.decode_base64(args.r)
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end
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local user = ngx.var.cookie_SSOwAuthUser
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logout[user] = {}
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logout[user]["redirect_url"] = redirect_url
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logout[user]["domains"] = {}
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for _, value in ipairs(conf["domains"]) do
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table.insert(logout[user]["domains"], value)
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end
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return redirect(ngx.var.scheme.."://"..ngx.var.http_host.."/?ssologout="..user)
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end
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end
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function login_walkthrough (user)
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@ -245,74 +407,3 @@ function pass ()
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return
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end
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--
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-- Routing
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--
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-- Logging in/out
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if ngx.var.request_method == "GET" then
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local args = ngx.req.get_uri_args()
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local user = args.ssologin
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if user and login[user] then
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return login_walkthrough(user)
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end
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user = args.ssologout
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if user and logout[user] then
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return logout_walkthrough(user)
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end
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end
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-- Portal
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if ngx.var.host == conf["portal_domain"]
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and string.starts(ngx.var.uri, conf["portal_path"])
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then
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if ngx.var.request_method == "GET" then
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return display_login_form()
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elseif ngx.var.request_method == "POST" then
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return do_login()
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end
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end
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-- Skipped urls
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for _, url in ipairs(conf["skipped_urls"]) do
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if string.starts(ngx.var.host..ngx.var.uri, url) then
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return pass
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end
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end
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-- Unprotected urls
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for _, url in ipairs(conf["unprotected_urls"]) do
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if string.starts(ngx.var.host..ngx.var.uri, url) then
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if check_cookie() then
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set_headers(ngx.var.cookie_SSOwAuthUser)
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end
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return pass
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end
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end
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-- Cookie validation
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if check_cookie() then
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set_headers(ngx.var.cookie_SSOwAuthUser)
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return pass
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else
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delete_cookie()
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end
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-- Login with HTTP Auth if credentials are brought
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local auth_header = ngx.req.get_headers()["Authorization"]
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if auth_header then
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_, _, b64_cred = string.find(auth_header, "^Basic%s+(.+)$")
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_, _, user, password = string.find(ngx.decode_base64(b64_cred), "^(.+):(.+)$")
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if authenticate(user, password) then
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set_headers(user)
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return pass
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end
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end
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-- Else redirect to portal
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local back_url = ngx.var.scheme .. "://" .. ngx.var.http_host .. ngx.var.uri
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-- From another domain
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return redirect(portal_url.."?r="..ngx.encode_base64(back_url))
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@ -1,8 +1,7 @@
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{
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"portal_scheme": "https",
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"portal_domain": "mydomain.com",
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"portal_path": "/ssowat/",
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"portal_port": "443",
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"portal_scheme": "https",
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"domains": [
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"mydomain.com",
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"myotherdomain.com"
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151
hige.lua
Normal file
151
hige.lua
Normal file
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@ -0,0 +1,151 @@
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module('hige', package.seeall)
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local tags = { open = '{{', close = '}}' }
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local r = {}
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local function merge_environment(...)
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local numargs, out = select('#', ...), {}
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for i = 1, numargs do
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local t = select(i, ...)
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if type(t) == 'table' then
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for k, v in pairs(t) do
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if (type(v) == 'function') then
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out[k] = setfenv(v, setmetatable(out, {
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__index = getmetatable(getfenv()).__index
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}))
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else
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out[k] = v
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end
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end
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end
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end
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return out
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end
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local function escape(str)
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return str:gsub('[&"<>\]', function(c)
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if c == '&' then return '&'
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elseif c == '"' then return '\"'
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elseif c == '\\' then return '\\\\'
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elseif c == '<' then return '<'
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elseif c == '>' then return '>'
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else return c end
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end)
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end
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local function find(name, context)
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local value = context[name]
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if value == nil then
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return ''
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elseif type(value) == 'function' then
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return merge_environment(context, value)[name]()
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else
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return value
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end
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end
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local operators = {
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-- comments
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['!'] = function(state, outer, name, context)
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return state.tag_open .. '!' .. outer .. state.tag_close
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end,
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-- the triple hige is unescaped
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['{'] = function(state, outer, name, context)
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return find(name, context)
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end,
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-- render partial
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['<'] = function(state, outer, name, context)
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return r.partial(state, name, context)
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end,
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-- set new delimiters
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['='] = function(state, outer, name, context)
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-- FIXME!
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error('setting new delimiters in the template is currently broken')
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--[[
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return name:gsub('^(.-)%s+(.-)$', function(open, close)
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state.tag_open, state.tag_close = open, close
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return ''
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end)
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]]
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end,
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}
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function r.partial(state, name, context)
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local target_mt = setmetatable(context, { __index = state.lookup_env })
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local target_name = setfenv(loadstring('return ' .. name), target_mt)()
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local target_type = type(target_name)
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if target_type == 'string' then
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return r.render(state, target_name, context)
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elseif target_type == 'table' then
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local target_template = setfenv(loadstring('return '..name..'_template'), target_mt)()
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return r.render(state, target_template, merge_environment(target_name, context))
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else
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error('unknown partial type "' .. tostring(name) .. '"')
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end
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end
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function r.tags(state, template, context)
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local tag_path = state.tag_open..'([=!<{]?)(%s*([^#/]-)%s*)[=}]?%s*'..state.tag_close
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return template:gsub(tag_path, function(op, outer, name)
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if operators[op] ~= nil then
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return tostring(operators[op](state, outer, name, context))
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else
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return escape(tostring((function()
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if name ~= '.' then
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return find(name, context)
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else
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return context
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end
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end)()))
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end
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end)
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end
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function r.section(state, template, context)
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for section_name in template:gmatch(state.tag_open..'#%s*([^#/]-)%s*'..state.tag_close) do
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local found, value = context[section_name] ~= nil, find(section_name, context)
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local section_path = state.tag_open..'#'..section_name..state.tag_close..'%s*(.*)'..state.tag_open..'/'..section_name..state.tag_close..'%s*'
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template = template:gsub(section_path, function(inner)
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if found == false then return '' end
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if value == true then
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return r.render(state, inner, context)
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elseif type(value) == 'table' then
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local output = {}
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for _, row in pairs(value) do
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local new_context
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if type(row) == 'table' then
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new_context = merge_environment(context, row)
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else
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new_context = row
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end
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table.insert(output, (r.render(state, inner, new_context)))
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end
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return table.concat(output)
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else
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return ''
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end
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end)
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end
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return template
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end
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function r.render(state, template, context)
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return r.tags(state, r.section(state, template, context), context)
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end
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function render(template, context, env)
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if template:find(tags.open) == nil then return template end
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local state = {
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lookup_env = env or _G,
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tag_open = tags.open,
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tag_close = tags.close,
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}
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return r.render(state, template, context or {})
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end
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7
init.lua
7
init.lua
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@ -1,7 +1,14 @@
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-- Remove prepending '@' & trailing 'init.lua'
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script_path = string.sub(debug.getinfo(1).source, 2, -9)
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-- Include local libs in package.path
|
||||
package.path = package.path .. ";"..script_path.."?.lua"
|
||||
|
||||
-- Load libraries
|
||||
json = require "json"
|
||||
lualdap = require "lualdap"
|
||||
math = require "math"
|
||||
hige = require "hige"
|
||||
|
||||
-- Set random key
|
||||
math.randomseed(os.time())
|
||||
|
|
|
|||
Loading…
Reference in a new issue