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annotate mod_http_pep_avatar/mod_http_pep_avatar.lua @ 3566:b50be75c8bef

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mod_auth_ldap: Use module API for logging
author Kim Alvefur <zash@zash.se>
date Mon, 29 Apr 2019 00:05:20 +0200
parents 213679266dcb
children 00bdecb12779
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461429e0db58 mod_http_pep_avatar: Provides PEP avatars via HTTP
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1 -- HTTP Access to PEP Avatar
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2 -- By Kim Alvefur <zash@zash.se>
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3
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4 local mod_pep = module:depends"pep";
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5
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6 local um = require "core.usermanager";
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7 local nodeprep = require "util.encodings".stringprep.nodeprep;
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8 local base64_decode = require "util.encodings".base64.decode;
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9 local urlencode = require "util.http".urlencode;
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10
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11 module:depends("http")
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12 module:provides("http", {
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13 route = {
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14 ["GET /*"] = function (event, user)
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15 local request, response = event.request, event.response;
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16 local actor = request.ip;
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17
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18 local prepped = nodeprep(user);
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19 if not prepped then return 400; end
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20 if prepped ~= user then
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21 response.headers.location = module:http_url() .. "/" .. urlencode(prepped);
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22 return 302;
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23 end
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24 if not um.user_exists(user, module.host) then
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25 return 404;
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26 end
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28 local pep_service = mod_pep.get_pep_service(user);
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30 local ok, avatar_hash, avatar_meta = pep_service:get_last_item("urn:xmpp:avatar:metadata", actor);
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31
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32 if not ok or not avatar_hash then
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33 return 404;
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34 end
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36 if avatar_hash == request.headers.if_none_match then
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37 return 304;
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38 end
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40 local data_ok, avatar_data = pep_service:get_items("urn:xmpp:avatar:data", actor, avatar_hash);
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41 if not data_ok or type(avatar_data) ~= "table" or not avatar_data[avatar_hash] then
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42 return 404;
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43 end
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45 response.headers.etag = avatar_hash;
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47 local info = avatar_meta.tags[1]:get_child("info");
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48 response.headers.content_type = info and info.attr.type or "application/octet-stream";
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49
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50 local data = avatar_data[avatar_hash];
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51 return base64_decode(data.tags[1]:get_text());
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52 end;
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53 }
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54 });