author | Matthew Wild <mwild1@gmail.com> |
Fri, 23 Feb 2018 16:23:03 +0000 | |
changeset 8539 | c3f234e4ac23 |
parent 8534 | 601681acea73 |
child 8549 | d66916dc318a |
permissions | -rw-r--r-- |
8534
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
1 |
local server = require "net.server"; |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
2 |
local log = require "util.logger".init("net.connect"); |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
3 |
local new_id = require "util.id".short; |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
4 |
|
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
5 |
local pending_connection_methods = {}; |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
6 |
local pending_connection_mt = { |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
7 |
__name = "pending_connection"; |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
8 |
__index = pending_connection_methods; |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
9 |
__tostring = function (p) |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
10 |
return "<pending connection "..p.id.." to "..tostring(p.target_resolver.hostname)..">"; |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
11 |
end; |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
12 |
}; |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
13 |
|
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
14 |
function pending_connection_methods:log(level, message, ...) |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
15 |
log(level, "[pending connection %s] "..message, self.id, ...); |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
16 |
end |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
17 |
|
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
18 |
-- pending_connections_map[conn] = pending_connection |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
19 |
local pending_connections_map = {}; |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
20 |
|
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
21 |
local pending_connection_listeners = {}; |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
22 |
|
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
23 |
local function attempt_connection(p) |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
24 |
p:log("debug", "Checking for targets..."); |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
25 |
if p.conn then |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
26 |
pending_connections_map[p.conn] = nil; |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
27 |
p.conn = nil; |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
28 |
end |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
29 |
p.target_resolver:next(function (conn_type, ip, port, extra) |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
30 |
p:log("debug", "Next target to try is %s:%d", ip, port); |
8539
c3f234e4ac23
net.connect: Default to *a pattern if none provided
Matthew Wild <mwild1@gmail.com>
parents:
8534
diff
changeset
|
31 |
local conn = assert(server.addclient(ip, port, pending_connection_listeners, p.options.pattern or "*a", p.options.sslctx, conn_type, extra)); |
8534
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
32 |
p.conn = conn; |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
33 |
pending_connections_map[conn] = p; |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
34 |
end); |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
35 |
end |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
36 |
|
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
37 |
function pending_connection_listeners.onconnect(conn) |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
38 |
local p = pending_connections_map[conn]; |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
39 |
if not p then |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
40 |
log("warn", "Successful connection, but unexpected! Closing."); |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
41 |
conn:close(); |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
42 |
return; |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
43 |
end |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
44 |
pending_connections_map[conn] = nil; |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
45 |
p:log("debug", "Successfully connected"); |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
46 |
if p.listeners.onattach then |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
47 |
p.listeners.onattach(conn, p.data); |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
48 |
end |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
49 |
conn:setlistener(p.listeners); |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
50 |
return p.listeners.onconnect(conn); |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
51 |
end |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
52 |
|
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
53 |
function pending_connection_listeners.ondisconnect(conn, reason) |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
54 |
local p = pending_connections_map[conn]; |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
55 |
if not p then |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
56 |
log("warn", "Failed connection, but unexpected!"); |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
57 |
return; |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
58 |
end |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
59 |
p:log("debug", "Connection attempt failed"); |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
60 |
attempt_connection(p); |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
61 |
end |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
62 |
|
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
63 |
local function connect(target_resolver, listeners, options, data) |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
64 |
local p = setmetatable({ |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
65 |
id = new_id(); |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
66 |
target_resolver = target_resolver; |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
67 |
listeners = assert(listeners); |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
68 |
options = options or {}; |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
69 |
cb = cb; |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
70 |
}, pending_connection_mt); |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
71 |
|
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
72 |
p:log("debug", "Starting connection process"); |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
73 |
attempt_connection(p); |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
74 |
end |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
75 |
|
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
76 |
return { |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
77 |
connect = connect; |
601681acea73
net.connect: New API for outgoing connections, based on 'service resolvers'
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
78 |
}; |