Software / code / prosody-modules
Changeset
3084:5b4e7db5943c
mod_http_avatar: Add caching support.
| author | Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> |
|---|---|
| date | Fri, 01 Jun 2018 22:45:41 +0200 |
| parents | 3083:46d71b38bc16 |
| children | 3085:1ea6861b533f |
| files | mod_http_avatar/mod_http_avatar.lua |
| diffstat | 1 files changed, 9 insertions(+), 2 deletions(-) [+] |
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--- a/mod_http_avatar/mod_http_avatar.lua Fri Jun 01 22:11:42 2018 +0200 +++ b/mod_http_avatar/mod_http_avatar.lua Fri Jun 01 22:45:41 2018 +0200 @@ -5,6 +5,7 @@ -- 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"; @@ -16,7 +17,7 @@ </svg>]]; local function get_avatar(event, path) - local response = event.response; + local request, response = event.request, event.response; local photo_type, binval; local vcard, err = vcard_storage:get(path); if vcard then @@ -32,8 +33,14 @@ 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; - return base64.decode(binval); + response.headers.etag = hash; + return avatar; end module:provides("http", {
