Mercurial > prosody-modules
annotate mod_isolate_host/README.markdown @ 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 |
parents | 8de50be756e5 |
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1 --- |
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2 labels: |
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3 - 'Stage-Beta' |
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4 summary: Prevent communication between hosts |
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5 ... |
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7 Introduction |
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8 ============ |
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10 In some environments it is desirable to isolate one or more hosts, and |
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11 prevent communication with external, or even other internal domains. |
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13 Loading mod\_isolate\_host on a host will prevent all communication with |
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14 JIDs outside of the current domain, though it is possible to configure |
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15 exceptions. |
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17 **Note:** if you just want to prevent communication with external |
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18 domains, this is possible without a plugin. See [Prosody: Disabling |
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19 s2s](http://prosody.im/doc/s2s#disabling) for more information. |
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21 This module was sponsored by [Exa Networks](http://exa-networks.co.uk/). |
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23 Configuration |
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24 ============= |
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26 To isolate all hosts by default, add the module to your global |
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27 modules\_enabled: |
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29 ``` {.lua} |
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30 modules_enabled = { |
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31 ... |
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32 "isolate_host"; |
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33 ... |
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34 } |
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35 ``` |
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37 Alternatively you can isolate a single host by putting a |
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38 modules\_enabled line under the VirtualHost directive: |
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39 |
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40 ``` {.lua} |
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41 VirtualHost "example.com" |
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42 modules_enabled = { "isolate_host" } |
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43 ``` |
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44 |
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45 After enabling the module, you can add further options to add exceptions |
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46 for the isolation: |
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48 Option Description |
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49 -------------------------- ----------------------------------------------------------------------------------------- |
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50 isolate\_except\_domains A list of domains to allow communication with. |
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51 isolate\_except\_users A list of user JIDs allowed to bypass the isolation and communicate with other domains. |
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53 **Note:** Admins of hosts are always allowed to communicate with other |
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54 domains |
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56 Compatibility |
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57 ============= |
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59 ----- ------- |
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60 0.9 Works |
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61 ----- ------- |