mirror of
https://github.com/YunoHost/SSOwat.git
synced 2024-09-03 20:06:27 +02:00
851 lines
27 KiB
Lua
851 lines
27 KiB
Lua
--
|
|
-- Load configuration
|
|
--
|
|
cache = ngx.shared.cache
|
|
srvkey = cache:get("srvkey")
|
|
if not srvkey then
|
|
math.randomseed(os.time())
|
|
srvkey = tostring(math.random(1111111, 9999999))
|
|
cache:add("srvkey", srvkey)
|
|
end
|
|
cookies = {}
|
|
|
|
-- Load conf file
|
|
local conf_file = assert(io.open(conf_path, "r"), "Configuration file is missing")
|
|
local conf = json.decode(conf_file:read("*all"))
|
|
|
|
-- Load additional rules
|
|
local persistent_conf_file = io.open(conf_path..".persistent", "r")
|
|
if persistent_conf_file ~= nil then
|
|
for k, v in pairs(json.decode(persistent_conf_file:read("*all"))) do
|
|
-- If key already exists and is a table, merge it
|
|
if conf[k] and type(v) == "table" then
|
|
for subk, subv in pairs(v) do
|
|
if type(subk) == "number" then
|
|
table.insert(conf[k], subv)
|
|
else
|
|
conf[k][subk] = subv
|
|
end
|
|
end
|
|
else
|
|
conf[k] = v
|
|
end
|
|
end
|
|
end
|
|
|
|
-- Default configuration values
|
|
default_conf = {
|
|
portal_scheme = "https",
|
|
portal_path = "/ssowat",
|
|
domains = { conf["portal_domain"] },
|
|
session_timeout = 60 * 60 * 24, -- one day
|
|
session_max_timeout = 60 * 60 * 24 * 7, -- one week
|
|
login_arg = "sso_login",
|
|
ldap_host = "localhost",
|
|
ldap_group = "ou=users,dc=yunohost,dc=org",
|
|
ldap_identifier = "uid",
|
|
ldap_attributes = {"uid", "givenname", "sn", "cn", "homedirectory", "mail", "maildrop"},
|
|
allow_mail_authentication = true
|
|
}
|
|
|
|
for param, default_value in pairs(default_conf) do
|
|
conf[param] = conf[param] or default_value
|
|
end
|
|
|
|
local portal_url = conf["portal_scheme"].."://"..
|
|
conf["portal_domain"]..
|
|
conf["portal_path"]
|
|
table.insert(conf["skipped_urls"], conf["portal_domain"]..conf["portal_path"])
|
|
|
|
-- Dummy intructions
|
|
ngx.header["X-SSO-WAT"] = "You've just been SSOed"
|
|
|
|
|
|
--
|
|
-- Useful functions
|
|
--
|
|
function read_file(file)
|
|
local f = io.open(file, "rb")
|
|
if not f then return false end
|
|
local content = f:read("*all")
|
|
f:close()
|
|
return content
|
|
end
|
|
|
|
function is_in_table (t, v)
|
|
for key, value in ipairs(t) do
|
|
if value == v then return key end
|
|
end
|
|
end
|
|
|
|
function string.starts (String, Start)
|
|
return string.sub(String, 1, string.len(Start)) == Start
|
|
end
|
|
|
|
function string.ends (String, End)
|
|
return End=='' or string.sub(String, -string.len(End)) == End
|
|
end
|
|
|
|
function cook (cookie_str)
|
|
table.insert(cookies, cookie_str)
|
|
end
|
|
|
|
function flash (wat, message)
|
|
if wat == "fail"
|
|
or wat == "win"
|
|
or wat == "info"
|
|
then
|
|
flashs[wat] = message
|
|
end
|
|
end
|
|
|
|
function uri_args_string (args)
|
|
if not args then
|
|
args = ngx.req.get_uri_args()
|
|
end
|
|
String = "?"
|
|
for k,v in pairs(args) do
|
|
String = String..k.."="..v.."&"
|
|
end
|
|
return string.sub(String, 1, string.len(String) - 1)
|
|
end
|
|
|
|
function set_auth_cookie (user, domain)
|
|
local maxAge = conf["session_max_timeout"]
|
|
local expire = ngx.req.start_time() + maxAge
|
|
local session_key = cache:get("session_"..user)
|
|
if not session_key then
|
|
session_key = tostring(math.random(1111111, 9999999))
|
|
cache:add("session_"..user, session_key, conf["session_max_timeout"])
|
|
end
|
|
local hash = ngx.md5(srvkey..
|
|
"|" ..ngx.var.remote_addr..
|
|
"|"..user..
|
|
"|"..expire..
|
|
"|"..session_key)
|
|
local cookie_str = "; Domain=."..domain..
|
|
"; Path=/"..
|
|
"; Max-Age="..maxAge
|
|
cook("SSOwAuthUser="..user..cookie_str)
|
|
cook("SSOwAuthHash="..hash..cookie_str)
|
|
cook("SSOwAuthExpire="..expire..cookie_str)
|
|
end
|
|
|
|
function delete_cookie ()
|
|
expired_time = "Thu, Jan 01 1970 00:00:00 UTC;"
|
|
for _, domain in ipairs(conf["domains"]) do
|
|
local cookie_str = "; Domain=."..domain..
|
|
"; Path=/"..
|
|
"; Max-Age="..expired_time
|
|
cook("SSOwAuthUser=;" ..cookie_str)
|
|
cook("SSOwAuthHash=;" ..cookie_str)
|
|
cook("SSOwAuthExpire=;" ..cookie_str)
|
|
end
|
|
end
|
|
|
|
function delete_redirect_cookie ()
|
|
expired_time = "Thu, Jan 01 1970 00:00:00 UTC;"
|
|
local cookie_str = "; Path="..conf["portal_path"]..
|
|
"; Max-Age="..expired_time
|
|
cook("SSOwAuthRedirect=;" ..cookie_str)
|
|
end
|
|
|
|
function is_logged_in ()
|
|
|
|
-- Check if cookie is set
|
|
if ngx.var.cookie_SSOwAuthExpire and ngx.var.cookie_SSOwAuthExpire ~= ""
|
|
and ngx.var.cookie_SSOwAuthHash and ngx.var.cookie_SSOwAuthHash ~= ""
|
|
and ngx.var.cookie_SSOwAuthUser and ngx.var.cookie_SSOwAuthUser ~= ""
|
|
then
|
|
-- Check expire time
|
|
if (ngx.req.start_time() <= tonumber(ngx.var.cookie_SSOwAuthExpire)) then
|
|
-- Check hash
|
|
local session_key = cache:get("session_"..ngx.var.cookie_SSOwAuthUser)
|
|
if session_key and session_key ~= "" then
|
|
-- Check cache
|
|
if cache:get(ngx.var.cookie_SSOwAuthUser.."-password") then
|
|
local hash = ngx.md5(srvkey..
|
|
"|"..ngx.var.remote_addr..
|
|
"|"..ngx.var.cookie_SSOwAuthUser..
|
|
"|"..ngx.var.cookie_SSOwAuthExpire..
|
|
"|"..session_key)
|
|
return hash == ngx.var.cookie_SSOwAuthHash
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
return false
|
|
end
|
|
|
|
function has_access (user, url)
|
|
user = user or ngx.var.cookie_SSOwAuthUser
|
|
url = url or ngx.var.host..ngx.var.uri
|
|
if not conf["users"] or not conf["users"][user] then
|
|
return true
|
|
end
|
|
for u, _ in pairs(conf["users"][user]) do
|
|
if string.starts(url, string.sub(u, 1, -2)) then return true end
|
|
end
|
|
return false
|
|
end
|
|
|
|
function authenticate (user, password)
|
|
if conf["allow_mail_authentication"] and string.find(user, "@") then
|
|
ldap = lualdap.open_simple(conf["ldap_host"])
|
|
for dn, attribs in ldap:search {
|
|
base = conf["ldap_group"],
|
|
scope = "onelevel",
|
|
sizelimit = 1,
|
|
filter = "(mail="..user..")",
|
|
attrs = {conf["ldap_identifier"]}
|
|
} do
|
|
if attribs[conf["ldap_identifier"]] then
|
|
ngx.log(ngx.NOTICE, "Use email: "..user)
|
|
user = attribs[conf["ldap_identifier"]]
|
|
else
|
|
ngx.log(ngx.ERR, "Unknown email: "..user)
|
|
return false
|
|
end
|
|
end
|
|
ldap:close()
|
|
end
|
|
connected = lualdap.open_simple (
|
|
conf["ldap_host"],
|
|
conf["ldap_identifier"].."=".. user ..","..conf["ldap_group"],
|
|
password
|
|
)
|
|
|
|
cache:flush_expired()
|
|
if connected then
|
|
cache:add(user.."-password", password, conf["session_timeout"])
|
|
ngx.log(ngx.NOTICE, "Connected as: "..user)
|
|
return user
|
|
else
|
|
ngx.log(ngx.ERR, "Connection failed for: "..user)
|
|
return false
|
|
end
|
|
end
|
|
|
|
function set_headers (user)
|
|
if ngx.var.scheme ~= "https" then
|
|
return redirect("https://"..ngx.var.host..ngx.var.uri..uri_args_string())
|
|
end
|
|
user = user or ngx.var.cookie_SSOwAuthUser
|
|
if not cache:get(user.."-password") then
|
|
flash("info", "Please log in to access to this content")
|
|
local back_url = ngx.var.scheme .. "://" .. ngx.var.host .. ngx.var.uri .. uri_args_string()
|
|
return redirect(portal_url.."?r="..ngx.encode_base64(back_url))
|
|
end
|
|
if not cache:get(user.."-"..conf["ldap_identifier"]) then
|
|
ldap = lualdap.open_simple(conf["ldap_host"])
|
|
ngx.log(ngx.NOTICE, "Reloading LDAP values for: "..user)
|
|
for dn, attribs in ldap:search {
|
|
base = conf["ldap_identifier"].."=".. user ..","..conf["ldap_group"],
|
|
scope = "base",
|
|
sizelimit = 1,
|
|
attrs = conf["ldap_attributes"]
|
|
} do
|
|
for k,v in pairs(attribs) do
|
|
if type(v) == "table" then
|
|
for k2,v2 in ipairs(v) do
|
|
if k2 == 1 then cache:set(user.."-"..k, v2, conf["session_timeout"]) end
|
|
cache:set(user.."-"..k.."|"..k2, v2, conf["session_max_timeout"])
|
|
end
|
|
else
|
|
cache:set(user.."-"..k, v, conf["session_timeout"])
|
|
end
|
|
end
|
|
end
|
|
else
|
|
-- Revalidate session for another day by default
|
|
password = cache:get(user.."-password")
|
|
cache:set(user.."-password", password, conf["session_timeout"])
|
|
end
|
|
|
|
-- Set HTTP Auth header
|
|
ngx.req.set_header("Authorization", "Basic "..ngx.encode_base64(
|
|
user..":"..cache:get(user.."-password")
|
|
))
|
|
|
|
-- Set Additional headers
|
|
for k, v in pairs(conf["additional_headers"]) do
|
|
ngx.req.set_header(k, cache:get(user.."-"..v))
|
|
end
|
|
|
|
end
|
|
|
|
function get_mails(user)
|
|
local mails = { mail = "", mailalias = {}, maildrop = {} }
|
|
if cache:get(user.."-mail|2") then
|
|
for _, v in ipairs({2, 3, 4, 5, 6, 7, 8, 9, 10}) do
|
|
table.insert(mails["mailalias"], cache:get(user.."-mail|"..v))
|
|
end
|
|
end
|
|
mails["mail"] = cache:get(user.."-mail")
|
|
if cache:get(user.."-maildrop|2") then
|
|
for _, v in ipairs({2, 3, 4, 5, 6, 7, 8, 9, 10}) do
|
|
table.insert(mails["maildrop"], cache:get(user.."-maildrop|"..v))
|
|
end
|
|
end
|
|
return mails
|
|
end
|
|
|
|
-- Yo dawg
|
|
function serve(uri)
|
|
rel_path = string.gsub(uri, conf["portal_path"], "/")
|
|
|
|
-- Load login.html as index
|
|
if rel_path == "/" then
|
|
if is_logged_in() then
|
|
rel_path = "/info.html"
|
|
else
|
|
rel_path = "/login.html"
|
|
end
|
|
end
|
|
|
|
-- Access to directory root: forbidden
|
|
if string.ends(rel_path, "/") then
|
|
return ngx.exit(403)
|
|
end
|
|
|
|
-- Try to get file content
|
|
local content = read_file(script_path.."portal"..rel_path)
|
|
if not content then
|
|
return ngx.exit(ngx.HTTP_NOT_FOUND)
|
|
end
|
|
|
|
-- Extract file extension
|
|
_, file, ext = string.match(rel_path, "(.-)([^\\/]-%.?([^%.\\/]*))$")
|
|
|
|
-- Associate to MIME type
|
|
mime_types = {
|
|
html = "text/html",
|
|
ms = "text/html",
|
|
js = "text/javascript",
|
|
map = "text/javascript",
|
|
css = "text/css",
|
|
gif = "image/gif",
|
|
jpg = "image/jpeg",
|
|
png = "image/png",
|
|
svg = "image/svg+xml",
|
|
ico = "image/vnd.microsoft.icon",
|
|
woff = "application/x-font-woff",
|
|
json = "application/json"
|
|
}
|
|
|
|
-- Set Content-Type
|
|
if mime_types[ext] then
|
|
ngx.header["Content-Type"] = mime_types[ext]
|
|
else
|
|
ngx.header["Content-Type"] = "text/plain"
|
|
end
|
|
|
|
-- Render as mustache
|
|
if ext == "html" then
|
|
local data = get_data_for(file)
|
|
local rendered = hige.render(read_file(script_path.."portal/header.ms"), data)
|
|
rendered = rendered..hige.render(content, data)
|
|
content = rendered..hige.render(read_file(script_path.."portal/footer.ms"), data)
|
|
elseif ext == "ms" then
|
|
local data = get_data_for(file)
|
|
content = hige.render(content, data)
|
|
elseif ext == "json" then
|
|
local data = get_data_for(file)
|
|
content = json.encode(data)
|
|
end
|
|
|
|
-- Reset flash messages
|
|
flashs["fail"] = nil
|
|
flashs["win"] = nil
|
|
flashs["info"] = nil
|
|
|
|
-- Ain't nobody got time for cache
|
|
ngx.header["Cache-Control"] = "no-cache"
|
|
ngx.say(content)
|
|
return ngx.exit(ngx.HTTP_OK)
|
|
end
|
|
|
|
function get_data_for(view)
|
|
local user = ngx.var.cookie_SSOwAuthUser
|
|
local data = {}
|
|
|
|
if view == "login.html" then
|
|
data["title"] = "YunoHost Login"
|
|
|
|
elseif view == "info.html" then
|
|
set_headers(user)
|
|
|
|
local mails = get_mails(user)
|
|
data = {
|
|
title = user.." <small>"..cache:get(user.."-cn").."</small>",
|
|
connected = true,
|
|
uid = user,
|
|
cn = cache:get(user.."-cn"),
|
|
mail = mails["mail"],
|
|
mailalias = mails["mailalias"],
|
|
maildrop = mails["maildrop"],
|
|
app = {}
|
|
}
|
|
|
|
for url, name in pairs(conf["users"][user]) do
|
|
table.insert(data["app"], { url = url, name = name })
|
|
end
|
|
|
|
elseif view == "password.html" then
|
|
|
|
data = {
|
|
title = "Change password",
|
|
connected = true
|
|
}
|
|
|
|
elseif view == "edit.html" then
|
|
set_headers(user)
|
|
|
|
local mails = get_mails(user)
|
|
data = {
|
|
title = "Edit "..user,
|
|
connected = true,
|
|
uid = user,
|
|
sn = cache:get(user.."-sn"),
|
|
givenName = cache:get(user.."-givenName"),
|
|
mail = mails["mail"],
|
|
mailalias = mails["mailalias"],
|
|
maildrop = mails["maildrop"]
|
|
}
|
|
|
|
elseif view == "panel.ms" then
|
|
data = { app = {} }
|
|
for url, name in pairs(conf["users"][user]) do
|
|
table.insert(data["app"], { url = url, name = name })
|
|
end
|
|
elseif view == "ynhpanel.json" then
|
|
local mails = get_mails(user)
|
|
data = {
|
|
app = {},
|
|
user = {
|
|
uid = user,
|
|
name = cache:get(user..'-cn'),
|
|
givenName = cache:get(user..'-givenName'),
|
|
surname = cache:get(user..'-sn'),
|
|
mail = mails['mail']
|
|
},
|
|
portal_url = portal_url
|
|
}
|
|
for url, name in pairs(conf["users"][user]) do
|
|
table.insert(data["app"], { url = url, name = name })
|
|
end
|
|
end
|
|
|
|
data['flash_fail'] = {flashs["fail"]}
|
|
data['flash_win'] = {flashs["win"] }
|
|
data['flash_info'] = {flashs["info"]}
|
|
return data
|
|
end
|
|
|
|
function do_edit ()
|
|
ngx.req.read_body()
|
|
local args = ngx.req.get_post_args()
|
|
|
|
if is_logged_in() and args
|
|
then
|
|
ngx.status = ngx.HTTP_CREATED
|
|
local user = ngx.var.cookie_SSOwAuthUser
|
|
|
|
-- Change password
|
|
if string.ends(ngx.var.uri, "password.html") then
|
|
if args.currentpassword
|
|
and args.currentpassword == cache:get(user.."-password")
|
|
then
|
|
if args.newpassword == args.confirm then
|
|
local dn = conf["ldap_identifier"].."="..user..","..conf["ldap_group"]
|
|
local ldap = lualdap.open_simple(conf["ldap_host"], dn, args.currentpassword)
|
|
local password = "{SHA}"..ngx.encode_base64(ngx.sha1_bin(args.newpassword))
|
|
if ldap:modify(dn, {'=', userPassword = password }) then
|
|
flash("win", "Password successfully changed")
|
|
cache:set(user.."-password", args.newpassword, conf["session_timeout"])
|
|
return redirect(portal_url.."info.html")
|
|
else
|
|
flash("fail", "An error occured on password changing")
|
|
end
|
|
else
|
|
flash("fail", "New passwords don't match")
|
|
end
|
|
else
|
|
flash("fail", "Actual password is wrong")
|
|
end
|
|
return redirect(portal_url.."password.html")
|
|
|
|
-- Edit user informations
|
|
elseif string.ends(ngx.var.uri, "edit.html") then
|
|
if args.givenName and args.sn and args.mail then
|
|
|
|
local mailalias = {}
|
|
if args["mailalias[]"] and type(args["mailalias[]"]) == "table" then
|
|
mailalias = args["mailalias[]"]
|
|
end
|
|
|
|
local maildrop = {}
|
|
if args["maildrop[]"] and type(args["maildrop[]"]) == "table" then
|
|
maildrop = args["maildrop[]"]
|
|
end
|
|
|
|
local mail_pattern = "[A-Za-z0-9%.%%%+%-]+@[A-Za-z0-9%.%%%+%-]+%.%w%w%w?%w?"
|
|
local domains = conf["domains"]
|
|
local mails = {}
|
|
table.insert(mailalias, 1, args.mail)
|
|
for k, mail in ipairs(mailalias) do
|
|
if mail ~= "" then
|
|
if not mail:match(mail_pattern) then
|
|
flash("fail", "Invalid mail address: "..mail)
|
|
return redirect(portal_url.."edit.html")
|
|
else
|
|
local domain_valid = false
|
|
for _, domain in ipairs(domains) do
|
|
if string.ends(mail, "@"..domain) then
|
|
domain_valid = true
|
|
break
|
|
end
|
|
end
|
|
if domain_valid then
|
|
table.insert(mails, mail)
|
|
else
|
|
flash("fail", "Invalid domain for mail "..mail)
|
|
return redirect(portal_url.."edit.html")
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
local drops = {}
|
|
for k, mail in ipairs(maildrop) do
|
|
if mail ~= "" then
|
|
if not mail:match(mail_pattern) then
|
|
flash("fail", "Invalid mail forward address: "..mail)
|
|
return redirect(portal_url.."edit.html")
|
|
end
|
|
table.insert(drops, mail)
|
|
end
|
|
end
|
|
table.insert(drops, 1, user)
|
|
|
|
local dn = conf["ldap_identifier"].."="..user..","..conf["ldap_group"]
|
|
local ldap = lualdap.open_simple(conf["ldap_host"], dn, cache:get(user.."-password"))
|
|
local cn = args.givenName.." "..args.sn
|
|
if ldap:modify(dn, {'=', cn = cn,
|
|
givenName = args.givenName,
|
|
sn = args.sn,
|
|
mail = mails,
|
|
maildrop = drops })
|
|
then
|
|
cache:delete(user.."-"..conf["ldap_identifier"])
|
|
for _, v in ipairs({2, 3, 4, 5, 6, 7, 8, 9, 10}) do
|
|
cache:delete(user.."-maildrop|"..v)
|
|
cache:delete(user.."-mail|"..v)
|
|
end
|
|
set_headers(user) -- Ugly trick to reload cache
|
|
flash("win", "Informations updated")
|
|
return redirect(portal_url.."info.html")
|
|
else
|
|
flash("fail", "An error occured on user saving")
|
|
end
|
|
else
|
|
flash("fail", "Missing required fields")
|
|
end
|
|
return redirect(portal_url.."edit.html")
|
|
end
|
|
end
|
|
end
|
|
|
|
function do_login ()
|
|
ngx.req.read_body()
|
|
local args = ngx.req.get_post_args()
|
|
local uri_args = ngx.req.get_uri_args()
|
|
|
|
user = authenticate(args.user, args.password)
|
|
if user then
|
|
ngx.status = ngx.HTTP_CREATED
|
|
set_auth_cookie(user, ngx.var.host)
|
|
if uri_args.r then
|
|
return redirect(portal_url.."?r="..uri_args.r)
|
|
else
|
|
return redirect(portal_url)
|
|
end
|
|
else
|
|
ngx.status = ngx.HTTP_UNAUTHORIZED
|
|
flash("fail", "Wrong username/password combination")
|
|
return redirect(portal_url)
|
|
end
|
|
end
|
|
|
|
function do_logout()
|
|
local args = ngx.req.get_uri_args()
|
|
if is_logged_in() then
|
|
cache:delete("session_"..ngx.var.cookie_SSOwAuthUser)
|
|
cache:delete(ngx.var.cookie_SSOwAuthUser.."-"..conf["ldap_identifier"]) -- Ugly trick to reload cache
|
|
flash("info", "Logged out")
|
|
return redirect(portal_url)
|
|
end
|
|
end
|
|
|
|
function redirect (url)
|
|
ngx.header["Set-Cookie"] = cookies
|
|
ngx.log(ngx.INFO, "Redirect to: "..url)
|
|
return ngx.redirect(url)
|
|
end
|
|
|
|
function pass ()
|
|
delete_redirect_cookie()
|
|
ngx.req.set_header("Set-Cookie", cookies)
|
|
if string.ends(ngx.var.uri, "/")
|
|
or string.ends(ngx.var.uri, ".html")
|
|
or string.ends(ngx.var.uri, ".htm")
|
|
then
|
|
ngx.header["Content-Type"] = "text/html"
|
|
end
|
|
return
|
|
end
|
|
|
|
|
|
--------------------------------------------------
|
|
-- Routing
|
|
--
|
|
|
|
-- Logging in
|
|
-- i.e. http://mydomain.org/?sso_login=a6e5320f
|
|
|
|
if ngx.var.host ~= conf["portal_domain"] and ngx.var.request_method == "GET" then
|
|
uri_args = ngx.req.get_uri_args()
|
|
if uri_args[conf.login_arg] then
|
|
cda_key = uri_args[conf.login_arg]
|
|
if login[cda_key] then
|
|
set_auth_cookie(login[cda_key], ngx.var.host)
|
|
ngx.log(ngx.NOTICE, "Cross-domain authentication: "..login[cda_key].." connected on "..ngx.var.host)
|
|
login[cda_key] = nil
|
|
uri_args[conf.login_arg] = nil
|
|
return redirect(ngx.var.uri..uri_args_string(uri_args))
|
|
end
|
|
end
|
|
end
|
|
|
|
|
|
-- Portal
|
|
-- i.e. http://mydomain.org/ssowat/*
|
|
|
|
if ngx.var.host == conf["portal_domain"]
|
|
and string.starts(ngx.var.uri, string.sub(conf["portal_path"], 1, -2))
|
|
then
|
|
if ngx.var.request_method == "GET" then
|
|
|
|
-- http://mydomain.org/ssowat
|
|
if ngx.var.uri.."/" == conf["portal_path"] then
|
|
return redirect(portal_url)
|
|
end
|
|
|
|
uri_args = ngx.req.get_uri_args()
|
|
if uri_args.action and uri_args.action == 'logout' then
|
|
-- Logout
|
|
return do_logout()
|
|
|
|
elseif is_logged_in() and uri_args.r then
|
|
back_url = ngx.decode_base64(uri_args.r)
|
|
if not string.match(back_url, "^http[s]?://"..ngx.var.host.."/")
|
|
and not string.match(back_url, ".*"..conf.login_arg.."=%d+$") then
|
|
cda_key = tostring(math.random(1111111, 9999999))
|
|
login[cda_key] = ngx.var.cookie_SSOwAuthUser
|
|
if string.match(back_url, ".*?.*") then
|
|
back_url = back_url.."&"
|
|
else
|
|
back_url = back_url.."?"
|
|
end
|
|
back_url = back_url.."sso_login="..cda_key
|
|
end
|
|
return redirect(back_url)
|
|
|
|
elseif is_logged_in() -- Authenticated
|
|
or ngx.var.uri == conf["portal_path"] -- OR Want to serve portal login
|
|
or (string.starts(ngx.var.uri, conf["portal_path"].."assets")
|
|
and (not ngx.var.http_referer
|
|
or string.starts(ngx.var.http_referer, portal_url))) -- OR Want to serve assets for portal login
|
|
then
|
|
-- Serve normal portal
|
|
return serve(ngx.var.uri)
|
|
|
|
else
|
|
-- Redirect to portal
|
|
flash("info", "Please log in to access to this content")
|
|
return redirect(portal_url)
|
|
end
|
|
|
|
elseif ngx.var.request_method == "POST" then
|
|
|
|
-- CSRF protection
|
|
if string.starts(ngx.var.http_referer, portal_url) then
|
|
if string.ends(ngx.var.uri, conf["portal_path"].."password.html")
|
|
or string.ends(ngx.var.uri, conf["portal_path"].."edit.html")
|
|
then
|
|
return do_edit()
|
|
else
|
|
return do_login()
|
|
end
|
|
else
|
|
-- Redirect to portal
|
|
flash("fail", "Please log in from the portal")
|
|
return redirect(portal_url)
|
|
end
|
|
end
|
|
end
|
|
|
|
-- Redirected urls
|
|
|
|
function detect_redirection(redirect_url)
|
|
if string.starts(redirect_url, "http://")
|
|
or string.starts(redirect_url, "https://") then
|
|
return redirect(redirect_url)
|
|
elseif string.starts(redirect_url, "/") then
|
|
return redirect(ngx.var.scheme.."://"..ngx.var.host..redirect_url)
|
|
else
|
|
return redirect(ngx.var.scheme.."://"..redirect_url)
|
|
end
|
|
end
|
|
|
|
if conf["redirected_urls"] then
|
|
for url, redirect_url in pairs(conf["redirected_urls"]) do
|
|
if url == ngx.var.host..ngx.var.uri
|
|
or url == ngx.var.scheme.."://"..ngx.var.host..ngx.var.uri
|
|
or url == ngx.var.uri then
|
|
detect_redirection(redirect_url)
|
|
end
|
|
end
|
|
end
|
|
|
|
if conf["redirected_regex"] then
|
|
for regex, redirect_url in pairs(conf["redirected_regex"]) do
|
|
if string.match(ngx.var.host..ngx.var.uri, regex)
|
|
or string.match(ngx.var.scheme.."://"..ngx.var.host..ngx.var.uri, regex)
|
|
or string.match(ngx.var.uri, regex) then
|
|
detect_redirection(redirect_url)
|
|
end
|
|
end
|
|
end
|
|
|
|
-- URL that must be protected
|
|
function is_protected()
|
|
if not conf["protected_urls"] then
|
|
conf["protected_urls"] = {}
|
|
end
|
|
if not conf["protected_regex"] then
|
|
conf["protected_regex"] = {}
|
|
end
|
|
|
|
for _, url in ipairs(conf["protected_urls"]) do
|
|
if string.starts(ngx.var.host..ngx.var.uri, url)
|
|
or string.starts(ngx.var.uri, url) then
|
|
return true
|
|
end
|
|
end
|
|
for _, regex in ipairs(conf["protected_regex"]) do
|
|
if string.match(ngx.var.host..ngx.var.uri, regex)
|
|
or string.match(ngx.var.uri, regex) then
|
|
return true
|
|
end
|
|
end
|
|
|
|
return false
|
|
end
|
|
|
|
-- Skipped urls
|
|
-- i.e. http://mydomain.org/no_protection/
|
|
|
|
if conf["skipped_urls"] then
|
|
for _, url in ipairs(conf["skipped_urls"]) do
|
|
if (string.starts(ngx.var.host..ngx.var.uri, url)
|
|
or string.starts(ngx.var.uri, url))
|
|
and not is_protected() then
|
|
return pass()
|
|
end
|
|
end
|
|
end
|
|
|
|
if conf["skipped_regex"] then
|
|
for _, regex in ipairs(conf["skipped_regex"]) do
|
|
if (string.match(ngx.var.host..ngx.var.uri, regex)
|
|
or string.match(ngx.var.uri, regex))
|
|
and not is_protected() then
|
|
return pass()
|
|
end
|
|
end
|
|
end
|
|
|
|
|
|
|
|
-- Unprotected urls
|
|
-- i.e. http://mydomain.org/no_protection+headers/
|
|
|
|
if conf["unprotected_urls"] then
|
|
for _, url in ipairs(conf["unprotected_urls"]) do
|
|
if (string.starts(ngx.var.host..ngx.var.uri, url)
|
|
or string.starts(ngx.var.uri, url))
|
|
and not is_protected() then
|
|
if is_logged_in() then
|
|
set_headers()
|
|
end
|
|
return pass()
|
|
end
|
|
end
|
|
end
|
|
|
|
if conf["unprotected_regex"] then
|
|
for _, regex in ipairs(conf["unprotected_regex"]) do
|
|
if (string.match(ngx.var.host..ngx.var.uri, regex)
|
|
or string.match(ngx.var.uri, regex))
|
|
and not is_protected() then
|
|
if is_logged_in() then
|
|
set_headers()
|
|
end
|
|
return pass()
|
|
end
|
|
end
|
|
end
|
|
|
|
-- Cookie validation
|
|
--
|
|
|
|
if is_logged_in() then
|
|
if string.match(ngx.var.uri, "^/ynhpanel.js$") then
|
|
serve("/ynhsso/assets/js/ynhpanel.js")
|
|
end
|
|
if string.match(ngx.var.uri, "^/ynhpanel.css$") then
|
|
serve("/ynhsso/assets/css/ynhpanel.css")
|
|
end
|
|
if string.match(ngx.var.uri, "^/ynhpanel.json$") then
|
|
serve("/ynhsso/assets/js/ynhpanel.json")
|
|
end
|
|
if not has_access() then
|
|
return redirect(portal_url)
|
|
end
|
|
set_headers()
|
|
return pass()
|
|
end
|
|
|
|
|
|
-- Login with HTTP Auth if credentials are brought
|
|
--
|
|
|
|
local auth_header = ngx.req.get_headers()["Authorization"]
|
|
if auth_header then
|
|
_, _, b64_cred = string.find(auth_header, "^Basic%s+(.+)$")
|
|
_, _, user, password = string.find(ngx.decode_base64(b64_cred), "^(.+):(.+)$")
|
|
user = authenticate(user, password)
|
|
if user then
|
|
set_headers(user)
|
|
return pass()
|
|
end
|
|
end
|
|
|
|
-- Else redirect to portal
|
|
--
|
|
|
|
flash("info", "Please log in to access to this content")
|
|
local back_url = ngx.var.scheme .. "://" .. ngx.var.host .. ngx.var.uri .. uri_args_string()
|
|
return redirect(portal_url.."?r="..ngx.encode_base64(back_url))
|