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-- USER AVATAR (XEP-0084) |
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-- library |
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local sha1 = require 'sha1' |
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local base64 = require 'base64' |
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local lm = require 'lm' |
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local pep = require 'pep' |
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local pubsub = require 'pubsub' |
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-- |
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local F = { } |
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-- TODO 'temporary disabling' |
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-- however I cannot see a method to enable it back without republishing avatar :( |
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-- this requires client to know, what is published on the server now |
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-- maybe we can do that by requesting item without payload from server |
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function F.publish ( conn, data, success, fail, height, width ) |
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local id = sha1.digest ( data ) |
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pep.publish ( conn, 'urn:xmpp:avatar:data', |
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{ id = id, |
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data = { xmlns = 'urn:xmpp:avatar:data', |
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base64.encode ( data ), |
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}, |
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}, |
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function () |
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pep.publish ( conn, 'urn:xmpp:avatar:metadata', |
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{ id = id, |
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info = { bytes = data:len (), id = id, type = 'image/png', height = height, width = width }, |
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}, success, fail ) |
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end, fail ) |
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end |
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function F.publish_url ( conn, url, iid, size, id, mtype, success, fail, height, width ) |
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pep.publish ( conn, 'urn:xmpp:avatar:metadata', |
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{ id = iid, |
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info = { bytes = size, id = id, type = mtype, url = url, height = height, width = width }, |
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}, success, fail ) |
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end |
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function F.get ( conn, from, id, success, fail ) |
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pubsub.retrieve ( conn, from, 'urn:xmpp:avatar:data', |
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function ( from, node, item ) |
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local data = item:child ( 'data' ) |
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if data then |
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success ( data:value () ) |
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else |
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-- XXX |
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end |
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end, fail, nil, { id } ) |
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end |
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return F |
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-- vim: se ts=4: -- |