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annotate mod_seclabels/README.markdown @ 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 a1d641e88918
children
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1 ---
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2 labels:
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3 - 'Stage-Alpha'
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4 summary: Security Labels
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5 ...
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6
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7 Introduction
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8 ============
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9
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10 This module implements [XEP-0258: Security Labels in XMPP], but not
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11 actual policy enforcement. See for example [mod_firewall] for that.
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13 Configuration
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14 =============
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15
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16 As with all modules, you enable it by adding it to the modules\_enabled
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17 list.
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18
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19 These options exist:
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21 Name Description Default
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22 ------------------------- ----------------------- -------------
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23 security\_catalog\_name Catalouge name "Default"
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24 security\_catalog\_desc Catalouge description "My labels"
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26 You can then add your labels in a table called security\_labels. They
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27 can be both orderd and unorderd, but ordered comes first.
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29 ``` {.lua}
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30 security_labels = {
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31 { -- This label will come first
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32 name = "Public",
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33 label = true, -- This is a label, but without the actual label.
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34 default = true -- This is the default label.
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35 },
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36 {
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37 name = "Private",
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38 label = "PRIVATE",
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39 color = "white",
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40 bgcolor = "blue"
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41 },
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42 Sensitive = { -- A Sub-selector
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43 SECRET = { -- The index is used as name
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44 label = true
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45 },
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46 TOPSECRET = { -- The order of this and the above is not guaranteed.
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47 color = "red",
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48 bgcolor = "black",
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49 }
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50 }
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51 }
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52 ```
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53
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54 Each label can have the following properties:
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55
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56 Name Description Default
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57 ---------------- --------------------------------------------------------- ----------------------------------------------------------
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58 name The name of the label. Used for selector. Required.
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59 label The actual label, ie `<esssecuritylabel/>` Required, can be boolean for a empty label, or a string.
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60 display The text shown as display marking. Defaults to the name
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61 color, bgcolor The fore- and background color of the display marking None
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62 default Boolean, true for the default. Only one may be default. false