prosody-modules
070b0db6c4a0
mod_authz_delegate/mod_authz_delegate.lua

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mod_authz_delegate/mod_authz_delegate.lua @ 5933:070b0db6c4a0

mod_http_upload_external: Add link to Rust implementation (Thanks Luna)
author Kim Alvefur <zash@zash.se>
date Sat, 18 May 2024 14:16:49 +0200
parent 5295:98d5acb93439
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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 array = require"util.array";
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5 local jid_split = import("prosody.util.jid", "split");
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6
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7 local hosts = prosody.hosts;
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8
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9 function get_jids_with_role(role) --luacheck: ignore 212/role
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10 return nil
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11 end
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12
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13 function get_user_role(user)
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14 -- this is called where the JID belongs to the host this module is loaded on
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15 -- that means we have to delegate that to get_jid_role with an appropriately composed JID
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16 return hosts[target_host].authz.get_jid_role(user .. "@" .. this_host)
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17 end
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18
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19 function set_user_role(user, role_name) --luacheck: ignore 212/user 212/role_name
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20 -- no roles for entities on this host.
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21 return false, "cannot set user role on delegation target"
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22 end
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23
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24 function get_user_secondary_roles(user) --luacheck: ignore 212/user
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25 -- no roles for entities on this host.
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26 return {}
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27 end
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28
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29 function add_user_secondary_role(user, role_name) --luacheck: ignore 212/user 212/role_name
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30 -- no roles for entities on this host.
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31 return nil, "cannot set user role on delegation target"
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32 end
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33
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34 function remove_user_secondary_role(user, role_name) --luacheck: ignore 212/user 212/role_name
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35 -- no roles for entities on this host.
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36 return nil, "cannot set user role on delegation target"
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37 end
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38
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39 function user_can_assume_role(user, role_name) --luacheck: ignore 212/user 212/role_name
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40 -- no roles for entities on this host.
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41 return false
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42 end
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43
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44 function get_jid_role(jid)
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45 local user, host = jid_split(jid);
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46 if host == target_host then
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47 return hosts[target_host].authz.get_user_role(user);
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48 end
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49 return hosts[target_host].authz.get_jid_role(jid);
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50 end
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51
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52 function set_jid_role(jid) --luacheck: ignore 212/jid
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53 -- TODO: figure out if there are actually legitimate uses for this...
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54 return nil, "cannot set jid role on delegation target"
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55 end
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56
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57 local default_permission_queue = array{};
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58
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59 function add_default_permission(role_name, action, policy)
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60 -- NOTE: we always record default permissions, because the delegated-to
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61 -- host may be re-activated.
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62 default_permission_queue:push({
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63 role_name = role_name,
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64 action = action,
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65 policy = policy,
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66 });
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67 local target_host_object = hosts[target_host];
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68 local authz = target_host_object and target_host_object.authz;
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69 if not authz then
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70 module:log("debug", "queueing add_default_permission call for later, %s is not active yet", target_host);
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71 return;
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72 end
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73 return authz.add_default_permission(role_name, action, policy)
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74 end
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75
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76 function get_role_by_name(role_name)
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77 return hosts[target_host].authz.get_role_by_name(role_name)
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78 end
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79
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80 function get_all_roles()
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81 return hosts[target_host].authz.get_all_roles()
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82 end
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83
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84 module:hook_global("host-activated", function(host)
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85 if host == target_host then
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86 local authz = hosts[target_host].authz;
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87 module:log("debug", "replaying %d queued permission changes", #default_permission_queue);
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88 assert(authz);
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89 -- replay default permission changes, if any
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90 for i, item in ipairs(default_permission_queue) do
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91 authz.add_default_permission(item.role_name, item.action, item.policy);
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92 end
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93 -- NOTE: we do not clear that array here -- in case the target_host is
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94 -- re-activated
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95 end
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96 end, -10000)