prosody-modules
8488ebde5739
mod_c2s_conn_throttle/mod_c2s_conn_throttle.lua

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mod_c2s_conn_throttle/mod_c2s_conn_throttle.lua @ 5738:8488ebde5739

mod_http_oauth2: Skip consent screen if requested by client and same scopes already granted This follows the intent behind the OpenID Connect 'prompt' parameter when it does not include the 'consent' keyword, that is the client wishes to skip the consent screen. If the user has already granted the exact same scopes to the exact same client in the past, then one can assume that they may grant it again.
author Kim Alvefur <zash@zash.se>
date Tue, 14 Nov 2023 23:03:37 +0100
parent 1343:7dbde05b48a9
child 5810:e79f9dec35c0
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15763c1d085c mod_c2s_conn_throttle: renamed mod_c2s_auth_throttle, hooks at features and takes in account stream renegotiation.
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1 -- Clients Connection Throttler.
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2 -- (C) 2012-2013, Marco Cirillo (LW.Org)
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4 local time = os.time
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5 local in_count = {}
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6 local logins_count = module:get_option_number("cthrottler_logins_count", 3)
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7 local throttle_time = module:get_option_number("cthrottler_time", 60)
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9 local function handle_sessions(event)
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10 local session = event.origin
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12 if not in_count[session.ip] and session.type == "c2s_unauthed" then
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13 in_count[session.ip] = { t = time(), c = 1 }
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14 elseif in_count[session.ip] and session.type == "c2s_unauthed" then
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15 if in_count[session.ip].starttls_c then in_count[session.ip].c = in_count[session.ip].starttls_c else in_count[session.ip].c = in_count[session.ip].c + 1 end
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17 if in_count[session.ip].c > logins_count and time() - in_count[session.ip].t < throttle_time then
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18 module:log("error", "Exceeded login count for %s, closing connection", session.ip)
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19 session:close{ condition = "policy-violation", text = "You exceeded the number of connections/logins allowed in "..throttle_time.." seconds, good bye." }
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20 return true
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21 elseif time() - in_count[session.ip].t > throttle_time then
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22 in_count[session.ip] = nil ; return
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23 end
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24 end
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25 end
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27 local function check_starttls(event)
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28 local session = event.origin
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30 if in_count[session.ip] and type(in_count[session.ip].starttls_c) ~= "number" and session.type == "c2s_unauthed" then
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31 in_count[session.ip].starttls_c = 1
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32 elseif in_count[session.ip] and type(in_count[session.ip].starttls_c) == "number" and session.type == "c2s_unauthed" then
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33 in_count[session.ip].starttls_c = in_count[session.ip].starttls_c + 1
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34 end
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35 end
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37 module:hook("stream-features", handle_sessions, 100)
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38 module:hook("stanza/urn:ietf:params:xml:ns:xmpp-tls:starttls", check_starttls, 100)