Mercurial > prosody-modules

annotate mod_http_avatar/mod_http_avatar.lua @ 6029:cc665f343690

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mod_firewall: SUBSCRIBED: Flip subscription check to match documentation The documentation claims that this condition checks whether the recipient is subscribed to the sender. However, it was using the wrong method, and actually checking whether the sender was subscribed to the recipient. A quick poll of folk suggested that the documentation's approach is the right one, so this should fix the code to match the documentation. This should also fix the bundled anti-spam rules from blocking presence from JIDs that you subscribe do (but don't have a mutual subscription with).
author Matthew Wild <mwild1@gmail.com>
date Fri, 22 Nov 2024 13:50:48 +0000
parents 0f103a6e9ba4
children
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1 -- Prosody IM
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2 -- Copyright (C) 2018 Emmanuel Gil Peyrot
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3 --
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4 -- This project is MIT/X11 licensed. Please see the
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5 -- COPYING file in the source package for more information.
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6
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7 local base64 = require"util.encodings".base64;
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8 local sha1 = require"util.hashes".sha1;
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9 local st = require"util.stanza";
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10 module:depends"http";
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11
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12 local vcard_storage = module:open_store"vcard";
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14 local default_avatar = [[<svg xmlns='http://www.w3.org/2000/svg' version='1.1' viewBox='0 0 150 150'>
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15 <rect width='150' height='150' fill='#888' stroke-width='1' stroke='#000'/>
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16 <text x='75' y='100' text-anchor='middle' font-size='100'>?</text>
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17 </svg>]];
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19 local function get_avatar(event, path)
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20 local request, response = event.request, event.response;
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21 local photo_type, binval;
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22 local vcard, err = vcard_storage:get(path);
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23 if vcard then
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24 vcard = st.deserialize(vcard);
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25 local photo = vcard:get_child("PHOTO", "vcard-temp");
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26 if photo then
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27 photo_type = photo:get_child_text("TYPE", "vcard-temp");
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28 binval = photo:get_child_text("BINVAL", "vcard-temp");
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29 end
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30 end
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31 if not photo_type or not binval then
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32 -- FIXME: should be a 404, but Firefox won’t display it in that case…
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33 --response.status_code = 404;
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34 response.headers.content_type = "image/svg+xml";
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35 return default_avatar;
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36 end
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37 local avatar = base64.decode(binval);
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38 local hash = sha1(avatar, true);
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39 if request.headers.if_none_match == hash then
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40 return 304;
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41 end
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42 response.headers.content_type = photo_type;
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43 response.headers.etag = hash;
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44 return avatar;
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45 end
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46
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47 module:provides("http", {
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48 route = {
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49 ["GET /*"] = get_avatar;
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50 };
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51 });