prosody
0f119bece309
util/sasl.lua

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util/sasl.lua @ 129:0f119bece309

Fixed: Some modules did not return anything
author Waqas Hussain <waqas20@gmail.com>
date Thu, 23 Oct 2008 18:42:29 +0500
parent 50:56272224ca4c
child 276:30893439d5d1
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2 local base64 = require "base64"
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3 local log = require "util.logger".init("sasl");
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4 local tostring = tostring;
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5 local st = require "util.stanza";
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6 local s_match = string.match;
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7 module "sasl"
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10 local function new_plain(onAuth, onSuccess, onFail, onWrite)
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11 local object = { mechanism = "PLAIN", onAuth = onAuth, onSuccess = onSuccess, onFail = onFail,
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12 onWrite = onWrite}
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13 --local challenge = base64.encode("");
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14 --onWrite(st.stanza("challenge", {xmlns = "urn:ietf:params:xml:ns:xmpp-sasl"}):text(challenge))
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15 object.feed = function(self, stanza)
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16 if stanza.name ~= "response" and stanza.name ~= "auth" then self.onFail("invalid-stanza-tag") end
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17 if stanza.attr.xmlns ~= "urn:ietf:params:xml:ns:xmpp-sasl" then self.onFail("invalid-stanza-namespace") end
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18 local response = base64.decode(stanza[1])
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19 local authorization = s_match(response, "([^&%z]+)")
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20 local authentication = s_match(response, "%z([^&%z]+)%z")
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21 local password = s_match(response, "%z[^&%z]+%z([^&%z]+)")
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22 if self.onAuth(authentication, password) == true then
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23 self.onWrite(st.stanza("success", {xmlns = "urn:ietf:params:xml:ns:xmpp-sasl"}))
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24 self.onSuccess(authentication)
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25 else
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26 self.onWrite(st.stanza("failure", {xmlns = "urn:ietf:params:xml:ns:xmpp-sasl"}):tag("temporary-auth-failure"));
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27 end
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28 end
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29 return object
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30 end
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33 function new(mechanism, onAuth, onSuccess, onFail, onWrite)
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34 local object
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35 if mechanism == "PLAIN" then object = new_plain(onAuth, onSuccess, onFail, onWrite)
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36 else
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37 log("debug", "Unsupported SASL mechanism: "..tostring(mechanism));
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38 onFail("unsupported-mechanism")
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39 end
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40 return object
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41 end
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43 return _M;