Mercurial > prosody-modules
view mod_http_avatar/mod_http_avatar.lua @ 4876:0f5f2d4475b9
mod_http_xep227: Add support for import via APIs rather than direct store manipulation
In particular this transitions PEP nodes and data to be imported via mod_pep's
APIs, fixing issues with importing at runtime while PEP data may already be
live in RAM.
Next obvious candidate for this approach is rosters, so clients get immediate
roster pushes and other special handling (such as emitting subscribes to reach
the desired subscription state).
author | Matthew Wild <mwild1@gmail.com> |
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date | Tue, 18 Jan 2022 17:01:18 +0000 |
parents | 5b4e7db5943c |
children | 0f103a6e9ba4 |
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-- Prosody IM -- Copyright (C) 2018 Emmanuel Gil Peyrot -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. local base64 = require"util.encodings".base64; local sha1 = require"util.hashes".sha1; local st = require"util.stanza"; module:depends"http"; local vcard_storage = module:open_store"vcard"; local default_avatar = [[<svg xmlns='http://www.w3.org/2000/svg' version='1.1' viewBox='0 0 150 150'> <rect width='150' height='150' fill='#888' stroke-width='1' stroke='#000'/> <text x='75' y='100' text-anchor='middle' font-size='100'>?</text> </svg>]]; local function get_avatar(event, path) local request, response = event.request, event.response; local photo_type, binval; local vcard, err = vcard_storage:get(path); if vcard then vcard = st.deserialize(vcard); local photo = vcard:get_child("PHOTO", "vcard-temp"); if photo then photo_type = photo:get_child_text("TYPE", "vcard-temp"); binval = photo:get_child_text("BINVAL", "vcard-temp"); end end if not photo_type or not binval then response.status_code = 404; response.headers.content_type = "image/svg+xml"; return default_avatar; end local avatar = base64.decode(binval); local hash = sha1(avatar, true); if request.headers.if_none_match == hash then return 304; end response.headers.content_type = photo_type; response.headers.etag = hash; return avatar; end module:provides("http", { route = { ["GET /*"] = get_avatar; }; });