Mercurial > prosody-modules
annotate mod_auth_custom_http/mod_auth_custom_http.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> |
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date | Sun, 22 Aug 2021 13:22:59 +0200 |
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1 -- Prosody IM |
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2 -- Copyright (C) 2008-2010 Waqas Hussain |
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3 -- |
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4 -- This project is MIT/X11 licensed. Please see the |
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5 -- COPYING file in the source package for more information. |
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6 -- |
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7 |
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8 local new_sasl = require "util.sasl".new; |
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9 local json = require "util.json"; |
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10 prosody.unlock_globals(); |
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11 local http = require "socket.http"; |
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12 prosody.lock_globals(); |
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13 |
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14 local options = module:get_option("auth_custom_http"); |
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15 local post_url = options and options.post_url; |
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16 assert(post_url, "No HTTP POST URL provided"); |
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17 |
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18 local provider = {}; |
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19 |
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20 function provider.test_password(username, password) |
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21 return nil, "Not supported" |
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22 end |
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23 |
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24 function provider.get_password(username) |
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25 return nil, "Not supported" |
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26 end |
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27 |
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28 function provider.set_password(username, password) |
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29 return nil, "Not supported" |
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30 end |
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31 |
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32 function provider.user_exists(username) |
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33 return true; |
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34 end |
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35 |
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36 function provider.create_user(username, password) |
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37 return nil, "Not supported" |
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38 end |
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39 |
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40 function provider.delete_user(username) |
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41 return nil, "Not supported" |
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42 end |
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43 |
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44 function provider.get_sasl_handler() |
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45 local getpass_authentication_profile = { |
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46 plain_test = function(sasl, username, password, realm) |
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47 local postdata = json.encode({ username = username, password = password }); |
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48 local result = http.request(post_url, postdata); |
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49 return result == "true", true; |
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50 end, |
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51 }; |
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52 return new_sasl(module.host, getpass_authentication_profile); |
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53 end |
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54 |
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55 |
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56 module:provides("auth", provider); |