annotate mod_couchdb/couchdb/couchdb.lib.lua @ 4942:e7b9bc629ecc

mod_rest: Add special handling to catch MAM results from remote hosts Makes MAM queries to remote hosts works. As the comment says, MAM results from users' local archives or local MUCs are returned via origin.send() which is provided in the event and thus already worked. Results from remote hosts go via normal stanza routing and events, which need this extra handling to catch. This pattern of iq-set, message+, iq-result is generally limited to MAM. Closest similar thing might be MUC join, but to really handle that you would need the webhook callback mechanism.
author Kim Alvefur <zash@zash.se>
date Mon, 16 May 2022 19:47:09 +0200
parents 316d7c8e1fb0
children
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1
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2 local http = require "socket.http";
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3 local url = require "socket.url";
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4
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5 local couchapi = module:require("couchdb/couchapi");
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6 local json = module:require("couchdb/json");
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7
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8 local couchdb_url = assert(module:get_option("couchdb_url"), "Option couchdb_url not specified");
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9 local db = couchapi.db(couchdb_url);
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10
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11 local function couchdb_get(key)
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12 local a,b = db:doc(key):get()
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13 print(json.encode(a));
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14 if b == 404 then return nil; end
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15 if b == 200 then b = nil; end
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16 return a.payload,b;
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17 end
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18
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19 local function couchdb_put(key, value)
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20 local a,b = db:doc(key):get();
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21 return db:doc(key):put({ payload = value, _rev = a and a._rev });
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22 end
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23
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24 local st = require "util.stanza";
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25
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26 local handlers = {};
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27
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28 handlers.accounts = {
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29 get = function(self, user)
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30 return couchdb_get(self.host.."/"..user.."/account");
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31 end;
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32 set = function(self, user, data)
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33 return couchdb_put(self.host.."/"..user.."/account", data);
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34 end;
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35 };
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36 handlers.vcard = {
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37 get = function(self, user)
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38 return couchdb_get(self.host.."/"..user.."/vcard");
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39 end;
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40 set = function(self, user, data)
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41 return couchdb_put(self.host.."/"..user.."/vcard", data);
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42 end;
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43 };
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44 handlers.private = {
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45 get = function(self, user)
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46 return couchdb_get(self.host.."/"..user.."/private");
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47 end;
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48 set = function(self, user, data)
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49 return couchdb_put(self.host.."/"..user.."/private", data);
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50 end;
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51 };
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52 handlers.roster = {
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53 get = function(self, user)
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54 return couchdb_get(self.host.."/"..user.."/roster");
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55 end;
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56 set = function(self, user, data)
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57 return couchdb_put(self.host.."/"..user.."/roster", data);
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58 end;
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59 };
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60
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61 -----------------------------
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62 local driver = {};
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63 driver.__index = driver;
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64
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65 function driver:open(host, datastore, typ)
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66 local cache_key = host.." "..datastore;
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67 if self.ds_cache[cache_key] then return self.ds_cache[cache_key]; end
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68 local instance = setmetatable({}, self);
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69 instance.host = host;
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70 instance.datastore = datastore;
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71 local handler = handlers[datastore];
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72 if not handler then return nil; end
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73 for key,val in pairs(handler) do
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74 instance[key] = val;
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75 end
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76 if instance.init then instance:init(); end
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77 self.ds_cache[cache_key] = instance;
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78 return instance;
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79 end
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80
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81 -----------------------------
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82 local _M = {};
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83
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84 function _M.new()
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85 local instance = setmetatable({}, driver);
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86 instance.__index = instance;
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87 instance.ds_cache = {};
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88 return instance;
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89 end
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90
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91 return _M;