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mod_report_affiliations/README.markdown

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mod_report_affiliations/README.markdown @ 6232:d72010642b31

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author Trần H. Trung <xmpp:trần.h.trung@trung.fun>
date Fri, 11 Apr 2025 23:19:21 +0700
parent 6062:fb2ba31a4e26
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1 ---
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2 labels:
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3 - 'Stage-Alpha'
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4 summary: 'XEP-0489: Reporting Account Affiliations'
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5 rockspec:
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6 build:
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7 modules:
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8 mod_report_affiliations.traits: traits.lib.lua
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9 ---
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12 This module implements [XEP-0489: Reporting Account Affiliations](https://xmpp.org/extensions/xep-0489.html).
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13 It can help with spam on the network, especially if you run a public server
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14 that allows registration.
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15
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16 ## How it works
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17
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18 Here is the scenario: you run a public server. Despite your best efforts, and
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19 following the [best practices](https://prosody.im/doc/public_servers), some
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20 spammers still occasionally manage to register on your server. Because of
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21 this, other servers on the network start filtering messages from all accounts
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22 on your server.
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23
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24 Enabling this module will include additional information in certain kinds of
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25 outgoing traffic, which allows other servers to judge the sending account,
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26 rather than the whole server.
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27
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28 ### When is affiliation information shared?
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29
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30 Affiliation is shared when a user on your server:
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31
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32 - sends a message to a user that has not (yet) authorized them
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33 - sends a subscription request to a user
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34 - sends a "directed presence" to a remote JID (for example, when joining a
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35 group chat).
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36
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37 ### What information is shared?
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38
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39 The following information is included in matching traffic:
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40
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41 - The affiliation of the account:
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42 - "guest" (the account is anonymous/temporary)
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43 - "registered" (the account was self-registered)
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44 - "member" (the account belongs to a recognised/trusted member of the server)
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45 - "admin" (the account belongs to a server administrator)
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47 For the "registered" affiliation, the following additional items are included:
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48
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49 - When the account was created
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50 - The "trust level" of the account
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51
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52 ### What is the trust level?
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53
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54 This is a score out of 100 which indicates how trusted the account is. It is
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55 automatically calculated, and the calculation may include various factors
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56 provided by installed modules. At this time, in a default installation, the
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57 reported value is always 50.
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58
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59 ## Configuration
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60
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61 ### Allowing queries
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62
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63 In most cases, Prosody will automatically include the affiliation information
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64 when necessary. However it is also possible to provide affiliation on-demand,
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65 in response to queries.
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66
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67 To avoid leaking information about the server's registered users, queries are
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68 restricted by default.
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69
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70 You can configure a list of servers from which queries are permitted, by using
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71 the 'report_affiliations_trusted_servers' option:
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72
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73 ```lua
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74 report_affiliations_trusted_servers = { "rtbl.example.net" }
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75 ```
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76
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77 In this example, permission has been granted to an RTBL service, so that it
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78 can query the server and avoid adding legitimate users to the blocklist, even
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79 if it receives reports about them (obviously this is just an example, RTBLs
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80 will decide their own policies).
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81
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82 ### Tweaking roles
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83
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84 Prosody automatically maps its standard roles to the affiliations defined by
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85 the XEP. If your deployment uses custom roles, you can customize the mapping
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86 by specifying the list of roles that should be mapped to a given affiliation.
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87 This can be done using the following options:
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88
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89 - report_affiliations_admin_roles
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90 - report_affiliations_member_roles
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91 - report_affiliations_registered_roles
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92 - report_affiliations_anonymous_roles
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93
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94 For example, to consider the 'company:staff' role as members, as well as the
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95 built-in prosody:member role, you might set the following:
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96
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97 ```lua
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98 report_affiliations_member_roles = { "prosody:member", "company:staff" }
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99 ```
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100
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101 ## Compatibility
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102
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103 Should work with 0.12, but has not been tested. 0.12 does not support the
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104 "member" role, so all non-anonymous/non-admin accounts will be reported as
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105 "registered".
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106
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107 Tested with trunk (2024-11-22).
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108