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view mod_stanza_counter/mod_stanza_counter_http.lua @ 4651:8231774f5bfd

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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 7dbde05b48a9
children
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-- (C) 2011, Marco Cirillo (LW.Org)
-- Exposes stats on HTTP for the stanza counter module.

module:depends("http")

local base_path = module:get_option_string("stanza_counter_basepath", "/stanza-counter/")

-- http handlers

local r_200 = "\n<html>\n<head>\n<title>Prosody's Stanza Counter</title>\n<meta name=\"robots\" content=\"noindex, nofollow\" />\n</head>\n\n<body>\n<h3>Incoming and Outgoing stanzas divided per type</h3>\n<p><strong>Incoming IQs</strong>: %d<br/>\n<strong>Outgoing IQs</strong>: %d<br/>\n<strong>Incoming Messages</strong>: %d<br/>\n<strong>Outgoing Messages</strong>: %d<br/>\n<strong>Incoming Presences</strong>: %d<br/>\n<strong>Outgoing Presences</strong>: %d<p>\n</body>\n\n</html>\n"

local r_err = "\n<html>\n<head>\n<title>Prosody's Stanza Counter - Error %s</title>\n<meta name=\"robots\" content=\"noindex, nofollow\" />\n</head>\n\n<body>\n<h3>%s</h3>\n</body>\n\n</html>\n"

local function res(event, code, body, extras)
	local response = event.response

        if extras then
		for header, data in pairs(extras) do response.headers[header] = data end
	end

	response.status_code = code
	response:send(body)
end

local function req(event)
	if not prosody.stanza_counter then
		local err500 = r_err:format(event, 500, "Stats not found, is the counter module loaded?")
		return res(500, err500) end
	if method == "GET" then
		local forge_res = r_200:format(prosody.stanza_counter.iq["incoming"],
					       prosody.stanza_counter.iq["outgoing"],
					       prosody.stanza_counter.message["incoming"],
					       prosody.stanza_counter.message["outgoing"],
					       prosody.stanza_counter.presence["incoming"],
					       prosody.stanza_counter.presence["outgoing"])
		return res(event, 200, forge_res)
	else
		local err405 = r_err:format(405, "Only GET is supported")
		return res(event, 405, err405, {["Allow"] = "GET"})
	end
end

-- initialization.

module:provides("http", {
	default_path = base_path,
        route = {
                ["GET /"] = req,
		["POST /"] = req
        }
})