Mercurial > prosody-modules
annotate mod_http_avatar/mod_http_avatar.lua @ 4293:edde5905744a
mod_s2s_keepalive: Don't send whitespace keepalives before s2sin stream is open
Could possibly result in whitespace before the XML and stream header,
which isn't allowed by the parser.
Don't think s2sout is affected, as the stream is opened early and
doesn't have to wait for the other end.
Thanks Ge0rG
author | Kim Alvefur <zash@zash.se> |
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date | Thu, 10 Dec 2020 11:57:03 +0100 |
parents | 5b4e7db5943c |
children | 0f103a6e9ba4 |
rev | line source |
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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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13 |
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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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18 |
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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 response.status_code = 404; |
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33 response.headers.content_type = "image/svg+xml"; |
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34 return default_avatar; |
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35 end |
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36 local avatar = base64.decode(binval); |
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37 local hash = sha1(avatar, true); |
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38 if request.headers.if_none_match == hash then |
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39 return 304; |
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40 end |
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41 response.headers.content_type = photo_type; |
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42 response.headers.etag = hash; |
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43 return avatar; |
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44 end |
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45 |
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46 module:provides("http", { |
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47 route = { |
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48 ["GET /*"] = get_avatar; |
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49 }; |
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50 }); |