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-rw-r--r--util/sasl.lua37
1 files changed, 19 insertions, 18 deletions
diff --git a/util/sasl.lua b/util/sasl.lua
index 1f4eff54..8750ce98 100644
--- a/util/sasl.lua
+++ b/util/sasl.lua
@@ -16,24 +16,25 @@ local print = print
module "sasl"
-local function new_plain(onAuth, onSuccess, onFail, onWrite)
- local object = { mechanism = "PLAIN", onAuth = onAuth, onSuccess = onSuccess, onFail = onFail,
- onWrite = onWrite}
- local challenge = base64.encode("");
- --onWrite(st.stanza("challenge", {xmlns = "urn:ietf:params:xml:ns:xmpp-sasl"}):text(challenge))
- object.feed = function(self, stanza)
- if stanza.name ~= "response" and stanza.name ~= "auth" then self.onFail("invalid-stanza-tag") end
- if stanza.attr.xmlns ~= "urn:ietf:params:xml:ns:xmpp-sasl" then self.onFail("invalid-stanza-namespace") end
- local response = base64.decode(stanza[1])
+local function new_plain(realm, password_handler)
+ local object = { mechanism = "PLAIN", realm = realm, password_handler = password_handler}
+ object.feed = function(self, message)
+ log("debug", "feed: "..message)
+ local response = message
local authorization = s_match(response, "([^&%z]+)")
local authentication = s_match(response, "%z([^&%z]+)%z")
local password = s_match(response, "%z[^&%z]+%z([^&%z]+)")
- if self.onAuth(authentication, password) == true then
- self.onWrite(st.stanza("success", {xmlns = "urn:ietf:params:xml:ns:xmpp-sasl"}))
- self.onSuccess(authentication)
+
+ local password_encoding, correct_password = self.password_handler(authentication.."@"..self.realm, "PLAIN")
+
+ local claimed_password = ""
+ if password_encoding == nil then claimed_password = password
+ else claimed_password = password_encoding(password) end
+
+ if claimed_password == correct_password then
+ return "success", nil
else
- self.onWrite(st.stanza("failure", {xmlns = "urn:ietf:params:xml:ns:xmpp-sasl"}):tag("temporary-auth-failure"));
- self.onFail("Wrong password.")
+ return "failure", "not-authorized"
end
end
return object
@@ -165,13 +166,13 @@ local function new_digest_md5(onAuth, onSuccess, onFail, onWrite)
return object
end
-function new(mechanism, onAuth, onSuccess, onFail, onWrite)
+function new(mechanism, realm, password)
local object
- if mechanism == "PLAIN" then object = new_plain(onAuth, onSuccess, onFail, onWrite)
- elseif mechanism == "DIGEST-MD5" then object = new_digest_md5(onAuth, onSuccess, onFail, onWrite)
+ if mechanism == "PLAIN" then object = new_plain(realm, password)
+ --elseif mechanism == "DIGEST-MD5" then object = new_digest_md5(ream, password)
else
log("debug", "Unsupported SASL mechanism: "..tostring(mechanism));
- onFail("unsupported-mechanism")
+ return nil
end
return object
end