view mod_couchdb/couchdb/couchdb.lib.lua @ 4976:75b6e5df65f9

various: Improve error reporting if missing file server module on 0.12 If there is some error loading net.http.files then it would be swallowed by the pcall and then it would proceed to trying mod_http_files, which might cause unexpected behavior on 0.12 Ref #1765
author Kim Alvefur <zash@zash.se>
date Mon, 18 Jul 2022 22:47:54 +0200
parents 316d7c8e1fb0
children
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local http = require "socket.http";
local url = require "socket.url";

local couchapi = module:require("couchdb/couchapi");
local json = module:require("couchdb/json");

local couchdb_url = assert(module:get_option("couchdb_url"), "Option couchdb_url not specified");
local db = couchapi.db(couchdb_url);

local function couchdb_get(key)
	local a,b = db:doc(key):get()
	print(json.encode(a));
	if b == 404 then return nil; end
	if b == 200 then b = nil; end
	return a.payload,b;
end

local function couchdb_put(key, value)
	local a,b = db:doc(key):get();
	return db:doc(key):put({ payload = value, _rev = a and a._rev });
end

local st = require "util.stanza";

local handlers = {};

handlers.accounts = {
	get = function(self, user)
		return couchdb_get(self.host.."/"..user.."/account");
	end;
	set = function(self, user, data)
		return couchdb_put(self.host.."/"..user.."/account", data);
	end;
};
handlers.vcard = {
	get = function(self, user)
		return couchdb_get(self.host.."/"..user.."/vcard");
	end;
	set = function(self, user, data)
		return couchdb_put(self.host.."/"..user.."/vcard", data);
	end;
};
handlers.private = {
	get = function(self, user)
		return couchdb_get(self.host.."/"..user.."/private");
	end;
	set = function(self, user, data)
		return couchdb_put(self.host.."/"..user.."/private", data);
	end;
};
handlers.roster = {
	get = function(self, user)
		return couchdb_get(self.host.."/"..user.."/roster");
	end;
	set = function(self, user, data)
		return couchdb_put(self.host.."/"..user.."/roster", data);
	end;
};

-----------------------------
local driver = {};
driver.__index = driver;

function driver:open(host, datastore, typ)
	local cache_key = host.." "..datastore;
	if self.ds_cache[cache_key] then return self.ds_cache[cache_key]; end
	local instance = setmetatable({}, self);
	instance.host = host;
	instance.datastore = datastore;
	local handler = handlers[datastore];
	if not handler then return nil; end
	for key,val in pairs(handler) do
		instance[key] = val;
	end
	if instance.init then instance:init(); end
	self.ds_cache[cache_key] = instance;
	return instance;
end

-----------------------------
local _M = {};

function _M.new()
	local instance = setmetatable({}, driver);
	instance.__index = instance;
	instance.ds_cache = {};
	return instance;
end

return _M;