view mod_http_favicon/mod_http_favicon.lua @ 4651:8231774f5bfd

mod_cloud_notify_encrypted: Ensure body substring remains valid UTF-8 The `body:sub()` call risks splitting the string in the middle of a multi-byte UTF-8 sequence. This should have been caught by util.stanza validation, but that would have caused some havoc, at the very least causing the notification to not be sent. There have been no reports of this happening. Likely because this module isn't widely deployed among users with languages that use many longer UTF-8 sequences. The util.encodings.utf8.valid() function is O(n) where only the last sequence really needs to be checked, but it's in C and expected to be fast.
author Kim Alvefur <zash@zash.se>
date Sun, 22 Aug 2021 13:22:59 +0200
parents 1861d6ba6ff6
children
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module:depends("http");

local favicon = require"util.encodings".base64.decode[[
AAABAAEAEBAAAAEAIABoBAAAFgAAACgAAAAQAAAAIAAAAAEAIAAAAAAAAAQAAAAAAAAAAAAAAAAA
AAAAAAD///8AsuD6TGrE95RiwfabYsH2m2TB9pmU1Phq+vz9A/38+wPx07xq67+emeq+nZvqvp2b
68GilPTfz0z///8AsuD6TACb8v8Am/L/AJvy/wCb8v8Am/L/AJvy/3TI94ntxqiJ35dh/9+XYf/f
l2H/35dh/9+XYf/fl2H/9N/PTGrE95QAm/L/AJvy/wCb8v8Am/L/AJvy/wCb8v8qq/PU5Kh61N+X
Yf/fl2H/35dh/9+XYf/fl2H/35dh/+vBopRiwfabAJvy/wCb8v8Am/L/AJvy/wCb8v8Am/L/Iqjz
3OOkdtzfl2H/35dh/9+XYf/fl2H/35dh/9+XYf/qvp2bYsH2mwCb8v8Am/L/AJvy/wCb8v8Am/L/
AJvy/yKo89zjpHbc35dh/9+XYf/fl2H/35dh/9+XYf/fl2H/6r6dm2TB9pkAm/L/AJvy/wCb8v8A
m/L/AJvy/wCb8v8kqfPa46V32t+XYf/fl2H/35dh/9+XYf/fl2H/35dh/+u/npmU1PhqAJvy/wCb
8v8Am/L/AJvy/wCb8v8Am/L/Vrz2p+m5lqffl2H/35dh/9+XYf/fl2H/35dh/9+XYf/x07xq+vz9
A3TI94kqq/PUIqjz3CKo89wkqfPaVrz2p+b0/Bf79O8X6bmWp+Old9rjpHbc46R23OSoetTtxqiJ
/fz7A/38+wPtxqiJ5Kh61OOkdtzjpHbc46V32um5lqf79O8X5vT8F1a89qckqfPaIqjz3CKo89wq
q/PUdMj3ifr8/QPx07xq35dh/9+XYf/fl2H/35dh/9+XYf/fl2H/6bmWp1a89qcAm/L/AJvy/wCb
8v8Am/L/AJvy/wCb8v+U1Phq67+emd+XYf/fl2H/35dh/9+XYf/fl2H/35dh/+Old9okqfPaAJvy
/wCb8v8Am/L/AJvy/wCb8v8Am/L/ZMH2meq+nZvfl2H/35dh/9+XYf/fl2H/35dh/9+XYf/jpHbc
Iqjz3ACb8v8Am/L/AJvy/wCb8v8Am/L/AJvy/2LB9pvqvp2b35dh/9+XYf/fl2H/35dh/9+XYf/f
l2H/46R23CKo89wAm/L/AJvy/wCb8v8Am/L/AJvy/wCb8v9iwfab68GilN+XYf/fl2H/35dh/9+X
Yf/fl2H/35dh/+SoetQqq/PUAJvy/wCb8v8Am/L/AJvy/wCb8v8Am/L/asT3lPTfz0zfl2H/35dh
/9+XYf/fl2H/35dh/9+XYf/txqiJdMj3iQCb8v8Am/L/AJvy/wCb8v8Am/L/AJvy/7Lg+kz///8A
9N/PTOvBopTqvp2b6r6dm+u/npnx07xq/fz7A/r8/QOU1PhqZMH2mWLB9ptiwfabasT3lLLg+kz/
//8Aw8MAAIABAAAAAAAAAAAAAAAAAAAAAAAAgAEAAIGBAACBgQAAgAEAAAAAAAAAAAAAAAAAAAAA
AACAAQAAw8MAAA==]];

local filename = module:get_option_string("favicon");
if filename then
	local fd = assert(module:load_resource(filename));
	favicon = assert(fd:read("*a"));
end

module:provides("http", {
	default_path = "/favicon.ico";
	route = {
		GET = {
			headers = {
				content_type = "image/x-icon";
			};
			body = favicon;
		}
	}
});