Software / code / prosody-modules
Diff
mod_ogp/mod_ogp.lua @ 4483:c4f11a4b5ac7
mod_ogp: Add the ability to whitelist domains
| author | JC Brand <jc@opkode.com> |
|---|---|
| date | Tue, 02 Mar 2021 13:36:10 +0100 |
| parent | 4482:21698b960bd6 |
| child | 4504:0136c98f574c |
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--- a/mod_ogp/mod_ogp.lua Tue Mar 02 12:04:14 2021 +0100 +++ b/mod_ogp/mod_ogp.lua Tue Mar 02 13:36:10 2021 +0100 @@ -2,12 +2,28 @@ local http = require "net.http" local st = require "util.stanza" local url_pattern = [[https?://%S+]] -local xmlns_fasten = "urn:xmpp:fasten:0"; -local xmlns_xhtml = "http://www.w3.org/1999/xhtml"; +local domain_pattern = '^%w+://([^/]+)' +local xmlns_fasten = "urn:xmpp:fasten:0" +local xmlns_xhtml = "http://www.w3.org/1999/xhtml" +local whitelist = module:get_option_set("ogp_domain_whitelist", {}) + + +local function is_whitelisted(url) + if whitelist:empty() then + return true + end + local domain = url:match(domain_pattern) + if whitelist:contains(domain) then + return true; + end + return false +end local function fetch_ogp_data(room, url, origin_id) - if not url then return; end + if not url or not is_whitelisted(url) then + return; + end http.request( url,
