Commit graph

32 commits

Author SHA1 Message Date
def c479230d71 Use new ddnet.org domain 2022-08-30 10:09:06 +02:00
heinrich5991 6600024f24 Allow multiple addresses per server in the serverbrowser
Support is incomplete for `leak_ip_address_to_all_servers` (will only
ping the first address of each server) and for the `leak_ip` setting
(which will also only ping the first address of each server).
2022-07-10 16:52:07 +02:00
Alexander Akulich 6d9284adc1 Port some code to str_copy() template 2022-07-09 19:40:58 +03:00
Chairn c9345e7d32 More vector naming format 2022-06-15 19:37:37 +02:00
heinrich5991 b3a3604c36 Remove namespace tw
It didn't have a clear role, it just acted as a distinguisher between
two functions with the same name.

Rename `tw::time_get` to `time_get_nanoseconds` and delete the old
`time_get_nanoseconds`. Move `CCmdlineFix` and the typed
`net_socket_read_wait` function to the global namespace.
2022-06-13 18:07:29 +02:00
Chairn 01edaec628 Format vector variables names (fixes #5209) 2022-06-11 21:38:49 +02:00
Dennis Felsing 51909c19ab Add CLockScope
Remove unused lock and scope in threading.h

Not sure if this is preferred

We could also try switching to std::mutex
2022-06-03 12:21:23 +02:00
bors[bot] 9dd46eb764
Merge #5260
5260: Pr thread safety negative r=heinrich5991 a=def-

WorkerThread is hard because `REQUIRES(!((CJobPool *)pUser)->m_Lock)` would require alias analysis or the function using that everywhere.

https://clang.llvm.org/docs/ThreadSafetyAnalysis.html#negative

## Checklist

- [ ] Tested the change ingame
- [ ] Provided screenshots if it is a visual change
- [ ] Tested in combination with possibly related configuration options
- [ ] Written a unit test if it works standalone, system.c especially
- [ ] Considered possible null pointers and out of bounds array indexing
- [ ] Changed no physics that affect existing maps
- [ ] Tested the change with [ASan+UBSan or valgrind's memcheck](https://github.com/ddnet/ddnet/#using-addresssanitizer--undefinedbehavioursanitizer-or-valgrinds-memcheck) (optional)


Co-authored-by: Dennis Felsing <dennis@felsin9.de>
2022-06-01 11:17:30 +00:00
def 3e60cd83d0 Time out for POST requests too (hopefully fixes #5198) 2022-05-29 19:15:36 +02:00
Dennis Felsing 174b855774 Enable -Wthread-safety-negative (as suggested by Chairn) 2022-05-28 02:14:46 +02:00
Jupeyy 3c597aff95 Switch to nanoseconds 2022-05-18 18:05:41 +02:00
Dennis Felsing 8d5693d483 Enable clang-tidy's modernize-use-override (fixes #5139)
except for destructors
2022-05-17 20:33:29 +02:00
heinrich5991 40bd85b552 Refactor HTTP code to no longer use inheritance
This gives us the same API interface for all different request types
(HEAD, GET, POST).
2022-05-13 09:16:15 +02:00
heinrich5991 246f213905 Remove a couple of game/-includes from the engine code 2022-05-13 09:04:39 +02:00
heinrich5991 1b233ab95c Add the HTTP client methods to the server 2022-05-13 09:04:39 +02:00
Dennis Felsing 843acf6a5a Use std::size instead of sizeof(a) / sizeof(a[0]) 2022-03-30 18:55:04 +02:00
Dennis Felsing b897753ef0 HTTP Serverbrowser: Quit faster (fixes #4563)
[2022-01-08 09:57:03][serverbrowse_http]: found master, url='https://master1.ddnet.tw/ddnet/15/servers.json' time=54ms
[2022-01-08 09:57:03][client]: disconnecting. reason='unknown'
[2022-01-08 09:57:03][http]: https://master2.ddnet.tw/ddnet/15/servers.json failed. libcurl error: Callback aborted
[2022-01-08 09:57:03][serverbrowse_http]: master chooser aborted
2022-02-06 18:39:14 +01:00
def 94272f82c7 Add more readability checks 2022-01-22 17:45:25 +01:00
heinrich5991 cdbf8ff2d2 Skip the UTF-8 BOM on all read text files
Fixes #4462.
2021-12-17 22:07:01 +01:00
Jupeyy 915ab512bc Add STATE_NO_MASTER 2021-08-16 18:27:43 +02:00
Jupeyy 6101782290 Make clicking refresh before current load is finished to calculate best master again 2021-08-16 18:27:43 +02:00
Jupeyy a663799188 uint64 -> uint64_t, int64 -> int64_t 2021-06-24 17:19:17 +02:00
Jupeyy a43d1698c5 Use time_get_microseconds in ChoseMaster class 2021-06-15 02:18:36 +02:00
heinrich5991 c5cd8d354d Add a new failure log level to the HTTP module
Use it for the "determine best masterserver" job, so that we can debug
failures.
2021-06-15 00:12:06 +02:00
def c60715e907 Add timeout for serverbrowser http request 2021-06-09 17:40:46 +02:00
Jupeyy 90303692df Don't refresh, if a job is already running 2021-06-09 17:40:46 +02:00
def bcdb3e0247 Reduce spamminess of http server browser
As reported by fokkonaut on Discord. Not sure if we lose relevant
information.

Previously:

[2021-05-28 12:08:54][http]: http https://master2.ddnet.tw/ddnet/15/servers.json
[2021-05-28 12:08:55][http]: task done https://master2.ddnet.tw/ddnet/15/servers.json
[2021-05-28 12:08:55][http]: http https://master2.ddnet.tw/ddnet/15/servers.json
[2021-05-28 12:08:57][http]: task done https://master2.ddnet.tw/ddnet/15/servers.json
[2021-05-28 12:08:57][serverbrowse_http]: found master, url='https://master2.ddnet.tw/ddnet/15/servers.json' time=2437ms
[2021-05-28 12:08:57][http]: http https://master4.ddnet.tw/ddnet/15/servers.json
[2021-05-28 12:08:57][http]: task failed. libcurl error: Could not resolve host: master4.ddnet.tw
[2021-05-28 12:08:57][http]: http https://master3.ddnet.tw/ddnet/15/servers.json
[2021-05-28 12:08:57][http]: task failed. libcurl error: Could not resolve host: master3.ddnet.tw
[2021-05-28 12:08:57][http]: http https://master1.ddnet.tw/ddnet/15/servers.json
[2021-05-28 12:08:57][http]: task done https://master1.ddnet.tw/ddnet/15/servers.json
[2021-05-28 12:08:57][http]: http https://master1.ddnet.tw/ddnet/15/servers.json
[2021-05-28 12:08:58][http]: task done https://master1.ddnet.tw/ddnet/15/servers.json
[2021-05-28 12:08:58][serverbrowse_http]: found master, url='https://master1.ddnet.tw/ddnet/15/servers.json' time=201ms
[2021-05-28 12:08:58][serverbrowse_http]: determined best master, url='https://master1.ddnet.tw/ddnet/15/servers.json' time=201ms
[2021-05-28 12:08:58][http]: http https://master1.ddnet.tw/ddnet/15/servers.json
[2021-05-28 12:08:58][http]: task done https://master1.ddnet.tw/ddnet/15/servers.json

Now:

[2021-05-28 12:29:58][http]: http https://master1.ddnet.tw/ddnet/15/servers.json
[2021-05-28 12:29:59][http]: task done https://master1.ddnet.tw/ddnet/15/servers.json
[2021-05-28 12:30:00][serverbrowse_http]: found master, url='https://master2.ddnet.tw/ddnet/15/servers.json' time=799ms
[2021-05-28 12:30:00][serverbrowse_http]: found master, url='https://master1.ddnet.tw/ddnet/15/servers.json' time=43ms
[2021-05-28 12:30:00][serverbrowse_http]: determined best master, url='https://master1.ddnet.tw/ddnet/15/servers.json' time=43ms
2021-05-28 12:30:27 +02:00
heinrich5991 bfef7c9ba3 Add forgotten commit data from #3772
Change filename `serverlist_urls.cfg` → `ddnet-serverlist-urls.cfg`,
change filename `cache.sqlite3` → `ddnet-cache.sqlite3`, add `const` to
a variable and change pings to just before multiples of 100.

Fixes #3853.
2021-05-27 21:48:04 +02:00
heinrich5991 ad26358853 Fix clang-tidy warnings
Even fix a bug in the process, if `m_pDDNetInfo` is null.
2021-05-14 01:25:59 +02:00
heinrich5991 53e9457965 Save previously determined best serverlist
Also make the whole process more robust against failures, retry finding
the best serverlist if the current one is broken.
2021-05-14 01:01:09 +02:00
heinrich5991 bd4e0f7fd8 Try parsing the server list before considering a masterserver 2021-05-14 01:01:08 +02:00
heinrich5991 436e202cbd Add client-side HTTP server info
Summary
=======

The idea of this is that clients will not have to ping each server for
server infos which takes long, leaks the client's IP address even to
servers the user does not join and is a DoS vector of the game servers
for attackers.

For the Internet, DDNet and KoG tab, the server list is entirely fetched
from the master server, filtering out servers that don't belong into the
list.

The favorites tab is also supposed to work that way, except for servers
that are marked as "also ping this server if it's not in the master
server list".

The LAN tab continues to broadcast the server info packet to find
servers in the LAN.

How does it work?
=================

The client ships with a list of master server list URLs. On first start,
the client checks which of these work and selects the fastest one.
Querying the server list is a HTTP GET request on that URL. The
response is a JSON document that contains server infos, server addresses
as URLs and an approximate location.

It can also contain a legacy server list which is a list of bare IP
addresses similar to the functionality the old master servers provided
via UDP. This allows us to backtrack on the larger update if it won't
work out.

Lost functionality
==================

(also known as user-visible changes)

Since the client doesn't ping each server in the list anymore, it has no
way of knowing its latency to the servers.

This is alleviated a bit by providing an approximate location for each
server (continent) so the client only has to know its own location for
approximating pings.
2021-05-14 01:00:39 +02:00