Mercurial > prosody-modules

annotate mod_storage_multi/mod_storage_multi.lua @ 5646:d67980d9e12d

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mod_http_oauth2: Apply refresh token ttl to refresh token instead of grant The intent in 59d5fc50f602 was for refresh tokens to extend the lifetime of the grant, but the refresh token ttl was applied to the grant and mod_tokenauth does not change it, leading to the grant expiring regardless of refresh token usage. This makes grant lifetimes unlimited, which seems to be standard practice in the wild.
author Kim Alvefur <zash@zash.se>
date Mon, 11 Sep 2023 10:48:31 +0200
parents 8c4a2d85e8bf
children
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8c4a2d85e8bf mod_storage_multi: Multi-backend storage module (WIP)
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1 -- mod_storage_multi
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2
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3 local storagemanager = require"core.storagemanager";
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4 local backends = module:get_option_array(module.name); -- TODO better name?
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5
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6 -- TODO migrate data "upwards"
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7
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8 -- one → one successful write is success
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9 -- all → all backends must report success
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10 -- majority → majority of backends must report success
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11 local policy = module:get_option_string(module.name.."_policy", "all");
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12
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13 local keyval_store = {};
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14 keyval_store.__index = keyval_store;
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15
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16 function keyval_store:get(username)
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17 local backends = self.backends;
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18 local data, err;
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19 for i = 1, #backends do
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20 module:log("debug", "%s:%s:get(%q)", tostring(backends[i].get), backends[i]._store, username);
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21 data, err = backends[i]:get(username);
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22 if err then
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23 module:log("error", tostring(err));
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24 elseif not data then
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25 module:log("debug", "No data returned");
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26 else
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27 module:log("debug", "Data returned");
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28 return data, err;
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29 end
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30 end
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31 end
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32
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33 -- This is where it gets complicated
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34 function keyval_store:set(username, data)
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35 local backends = self.backends;
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36 local ok, err, backend;
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37 local all, one, oks = true, false, 0;
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38 for i = 1, #backends do
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39 backend = backends[i];
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40 module:log("debug", "%s:%s:set(%q)", tostring(backends[i].get), backends[i].store, username);
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41 ok, err = backend:set(username, data);
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42 if not ok then
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43 module:log("error", "Error in storage driver %s: %s", backend.name, tostring(err));
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44 else
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45 oks = oks + 1;
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46 end
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47 one = one or ok; -- At least one successful write
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48 all = all and ok; -- All successful
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49 end
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50 if policy == "all" then
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51 return all, err
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52 elseif policy == "majority" then
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53 return oks > (#backends/2), err;
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54 end
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55 -- elseif policy == "one" then
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56 return one, err;
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57 end
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58
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59 local stores = {
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60 keyval = keyval_store;
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61 }
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62
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63 local driver = {};
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64
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65 function driver:open(store, typ)
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66 local store_mt = stores[typ or "keyval"];
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67 if store_mt then
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68 local my_backends = {};
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69 local driver, opened
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70 for i = 1, #backends do
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71 driver = storagemanager.load_driver(module.host, backends[i]);
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72 opened = driver:open(store, typ);
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73 my_backends[i] = assert(driver:open(store, typ));
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74 my_backends[i]._store = store;
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75 end
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76 return setmetatable({ backends = my_backends }, store_mt);
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77 end
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78 return nil, "unsupported-store";
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79 end
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80
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81 module:provides("storage", driver);