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annotate mod_authz_delegate/mod_authz_delegate.lua @ 5288:f61564b522f7

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mod_authz_delegate: introduce module to "link" authorization of hosts See the readme :-). Motivation is allowing Snikket admins to change circle avatars via the web portal without bypassing Prosody access checks.
author Jonas Schäfer <jonas@wielicki.name>
date Wed, 29 Mar 2023 17:21:45 +0200
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children 98d5acb93439
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1 local target_host = assert(module:get_option("authz_delegate_to"));
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2 local this_host = module:get_host();
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3
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4 local jid_split = import("prosody.util.jid", "split");
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5
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6 local hosts = prosody.hosts;
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7
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8 function get_jids_with_role(role) --luacheck: ignore 212/role
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9 return nil
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10 end
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11
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12 function get_user_role(user)
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13 -- this is called where the JID belongs to the host this module is loaded on
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14 -- that means we have to delegate that to get_jid_role with an appropriately composed JID
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15 return hosts[target_host].authz.get_jid_role(user .. "@" .. this_host)
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16 end
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17
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18 function set_user_role(user, role_name) --luacheck: ignore 212/user 212/role_name
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19 -- no roles for entities on this host.
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20 return false, "cannot set user role on delegation target"
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21 end
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22
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23 function get_user_secondary_roles(user) --luacheck: ignore 212/user
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24 -- no roles for entities on this host.
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25 return {}
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26 end
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28 function add_user_secondary_role(user, role_name) --luacheck: ignore 212/user 212/role_name
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29 -- no roles for entities on this host.
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30 return nil, "cannot set user role on delegation target"
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31 end
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32
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33 function remove_user_secondary_role(user, role_name) --luacheck: ignore 212/user 212/role_name
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34 -- no roles for entities on this host.
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35 return nil, "cannot set user role on delegation target"
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36 end
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37
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38 function user_can_assume_role(user, role_name) --luacheck: ignore 212/user 212/role_name
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39 -- no roles for entities on this host.
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40 return false
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41 end
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42
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43 function get_jid_role(jid)
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44 local user, host = jid_split(jid);
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45 if host == target_host then
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46 return hosts[target_host].authz.get_user_role(user);
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47 end
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48 return hosts[target_host].authz.get_jid_role(jid);
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49 end
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50
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51 function set_jid_role(jid) --luacheck: ignore 212/jid
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52 -- TODO: figure out if there are actually legitimate uses for this...
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53 return nil, "cannot set jid role on delegation target"
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54 end
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55
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56 function add_default_permission(role_name, action, policy)
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57 return hosts[target_host].authz.add_default_permission(role_name, action, policy)
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58 end
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59
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60 function get_role_by_name(role_name)
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61 return hosts[target_host].authz.get_role_by_name(role_name)
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62 end
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63
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64 function get_all_roles()
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65 return hosts[target_host].authz.get_all_roles()
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66 end