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adding SASL lib with PLAIN support, not tested yet

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Tobias Markmann 2008-08-26 00:57:46 +02:00
parent 0dadc00f7e
commit a7012d4923
1 changed files with 33 additions and 0 deletions
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33
util/sasl.lua Normal file
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require "base64"
function sasl:new_plain(onAuth, onSuccess, onFail, onWrite)
local object = { mechanism = "PLAIN", onAuth = onAuth, onSuccess = onSuccess, onFail = onFail,
onWrite = onWrite}
local challenge = base64.encode("");
onWrite(stanza.stanza("challenge", {xmlns = "urn:ietf:params:xml:ns:xmpp-sasl"}):text(challenge))
object.feed = function(self, stanza)
if (stanza.name ~= "response") then self.onFail() end
if (stanza.attr.xmlns ~= "urn:ietf:params:xml:ns:xmpp-sasl") then self.onFail() end
local response = stanza.tag[1]
local authorization = string.match(response, [[([^&\0]+)]])
local authentication = string.match(response, [[\0([^&\0]+)\0]])
local password = string.match(response, [[\0[^&\0]+\0([^&\0]+)]])
if self.onAuth(authorization, password) == true then
self.onWrite(stanza.stanza("success", {xmlns = "urn:ietf:params:xml:ns:xmpp-sasl"}))
self.onSuccess()
else
self.onWrite(stanza.stanza("failure", {xmlns = "urn:ietf:params:xml:ns:xmpp-sasl"}):tag("temporary-auth-failure"));
end
end
return object
end
function sasl:new(mechanism, onAuth, onSuccess, onFail, onWrite)
local object
if mechanism == "PLAIN" then object = new_plain(onAuth, onSuccess, onFail, onWrite)
else onFail()
end
return object
end
module "sasl"