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120 lines
3.8 KiB
120 lines
3.8 KiB
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local tonumber, tostring = tonumber, tostring;
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local ipairs, pairs, print= ipairs, pairs, print;
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local collectgarbage = collectgarbage;
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local m_random = import("math", "random");
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local format = import("string", "format");
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local hosts = hosts;
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local sessions = sessions;
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local modulemanager = require "core.modulemanager";
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local log = require "util.logger".init("sessionmanager");
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local error = error;
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local uuid_generate = require "util.uuid".uuid_generate;
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local newproxy = newproxy;
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local getmetatable = getmetatable;
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module "sessionmanager"
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function new_session(conn)
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local session = { conn = conn, notopen = true, priority = 0, type = "c2s_unauthed" };
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if true then
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session.trace = newproxy(true);
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getmetatable(session.trace).__gc = function () print("Session got collected") end;
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end
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local w = conn.write;
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session.send = function (t) w(tostring(t)); end
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return session;
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end
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function destroy_session(session)
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if not (session and session.disconnect) then return; end
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log("debug", "Destroying session...");
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session.disconnect();
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if session.username then
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if session.resource then
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hosts[session.host].sessions[session.username].sessions[session.resource] = nil;
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end
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local nomore = true;
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for res, ssn in pairs(hosts[session.host].sessions[session.username]) do
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nomore = false;
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end
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if nomore then
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hosts[session.host].sessions[session.username] = nil;
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end
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end
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session.conn = nil;
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session.disconnect = nil;
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for k in pairs(session) do
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if k ~= "trace" then
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session[k] = nil;
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end
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end
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collectgarbage("collect");
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collectgarbage("collect");
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collectgarbage("collect");
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collectgarbage("collect");
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collectgarbage("collect");
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end
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function send_to_session(session, data)
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log("debug", "Sending: %s", tostring(data));
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session.conn.write(tostring(data));
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end
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function make_authenticated(session, username)
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session.username = username;
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if session.type == "c2s_unauthed" then
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session.type = "c2s";
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end
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return true;
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end
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function bind_resource(session, resource)
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if not session.username then return false, "auth"; end
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if session.resource then return false, "constraint"; end -- We don't support binding multiple resources
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resource = resource or uuid_generate();
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--FIXME: Randomly-generated resources must be unique per-user, and never conflict with existing
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if not hosts[session.host].sessions[session.username] then
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hosts[session.host].sessions[session.username] = { sessions = {} };
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else
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if hosts[session.host].sessions[session.username].sessions[resource] then
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-- Resource conflict
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return false, "conflict";
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end
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end
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session.resource = resource;
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session.full_jid = session.username .. '@' .. session.host .. '/' .. resource;
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hosts[session.host].sessions[session.username].sessions[resource] = session;
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return true;
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end
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function streamopened(session, attr)
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local send = session.send;
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session.host = attr.to or error("Client failed to specify destination hostname");
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session.version = tonumber(attr.version) or 0;
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session.streamid = m_random(1000000, 99999999);
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print(session, session.host, "Client opened stream");
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send("<?xml version='1.0'?>");
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send(format("<stream:stream xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' id='%s' from='%s' version='1.0'>", session.streamid, session.host));
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local features = {};
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modulemanager.fire_event("stream-features", session, features);
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send("<stream:features>");
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for _, feature in ipairs(features) do
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send_to_session(session, tostring(feature));
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end
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send("</stream:features>");
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log("info", "Stream opened successfully");
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session.notopen = nil;
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end
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return _M; |