Commit graph

124 commits

Author SHA1 Message Date
def 94272f82c7 Add more readability checks 2022-01-22 17:45:25 +01:00
heinrich5991 228125df4f Remove compatible version filter
It doesn't do anything right now, all servers advertise a compatible
version.

It might become a compatibility hazard in the future, e.g. DDNet servers
try to advertise a different version string to 0.6 than to 0.7 clients,
because the compatible version filter on 0.6 insists that it starts with
"0.6" and on 0.7 that it starts with "0.7", clearly incompatible.
2021-12-28 15:09:38 +01:00
heinrich5991 cdbf8ff2d2 Skip the UTF-8 BOM on all read text files
Fixes #4462.
2021-12-17 22:07:01 +01:00
def 7464785013 Remove ping filter (fixes #4365)
We had lots of cases of people having ping filter activated. Ping is now
too unreliable to actually filter by it. It can show an old super high
value and then you never see the location again.
2021-11-24 16:04:04 +01:00
heinrich5991 243c1daa96 Use #include <> instead of #include "" for non-relative includes 2021-09-13 21:04:21 +02:00
Jupeyy c06edd9aeb Update server list silently 2021-09-13 16:50:40 +02:00
Robert Müller 1820c72513 use minimum instead of std::min 2021-08-20 17:16:18 +02:00
def 2cb3c575f5 Merge master into pr_use_cpp 2021-07-04 16:09:20 +02:00
def c24060f244 Compare lower case strings respecting utf8 (fixes #3937) 2021-06-28 22:51:14 +02:00
Jupeyy a663799188 uint64 -> uint64_t, int64 -> int64_t 2021-06-24 17:19:17 +02:00
Dennis Felsing 0892405ba7 sjon -> json 2021-06-21 14:51:45 +02:00
heinrich5991 97b53c4409 Don't set cached pings for servers without info
Fixes #3899.
2021-06-15 00:06:26 +02:00
heinrich5991 97a8fcca04 Send server info request for ping with different token
Thanks to @Jupeyy for figuring out this bug.

Previously, the client would send the request for server info and the
server info ping packet with the same token, making the answer
indistinguishable from each other. Fix this by generating a token that
won't collide.

Fixes #3862.
2021-06-09 17:29:06 +02:00
heinrich5991 26a577b891 Fix crash in serverbrowser initialization
Another missing commit.

Fixes #3875.

CC #3772 #3855
2021-06-03 00:27:00 +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 9002c9f9a2 Allow pinging favorites directly, leaking your IP address
This is on by default for favorites added in the LAN tab, otherwise off.
2021-05-14 01:01:09 +02:00
heinrich5991 47c803f3fb Remove server info backward compatibility that is no longer needed
Goes all the way back to 04eddacd65 in
2008, pre 0.5.0.
2021-05-14 01:01:09 +02:00
heinrich5991 afe6ab87e2 Also sort HTTP server info by score/name 2021-05-14 01:01:08 +02:00
heinrich5991 ee42faac1f Determine one's own location automatically, but provide override
Automatically determine the approximate location of the client by
including that info in the already fetched https://info2.ddnet.tw/info.
Can be overridden using the the config variable `br_location`.
2021-05-14 01:01:08 +02:00
heinrich5991 9eca91de74 Special case China as its own continent for ping estimation
It has an exceptionally bad connection to the outside due to the Great
Firewall of China:
https://en.wikipedia.org/w/index.php?title=Great_Firewall&oldid=1019589632
2021-05-14 01:01:08 +02:00
heinrich5991 a0df2bdf9c Measure the ping to the current server occasionally
This is done using the serverbrowser extended GETINFO packet. It's done
when the client enters the game and every ten minutes afterwards.
2021-05-14 01:01:08 +02:00
heinrich5991 ed561c3602 Add a command to ping all servers
Name it in a way to make clear what information it leaks to anyone who
wants to listen.
2021-05-14 01:01:07 +02:00
heinrich5991 bce7a4f84e Add serverbrowser ping cache 2021-05-14 01:00:41 +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
def ac6ae40806 No negative count in server browser
With "Count playery only" and "Filter connecting players" both activated
2021-03-19 11:46:02 +01:00
Alexander Akulich c2f276cee1 Port CConfig API from the upstream (0.7.5)
The old (g_Config) API is kept to not break the stuff.

See commits:
    de5859b371
    78076761eb
2021-01-10 17:10:19 +03:00
Jupeyy fb74bcbb55 Don't sort on entry adding 2020-12-22 11:30:20 +01:00
def bf8ae71b7d Fix and NOLINT bugprone-sizeof-expression 2020-11-05 08:25:34 +01:00
def 165857a5a8 Fix variable names manually 2020-11-02 22:40:40 +01:00
def b1f0fd8969 Enable modernize-loop-convert clang-tidy check
and run clang-format afterwards

https://clang.llvm.org/extra/clang-tidy/checks/modernize-loop-convert.html
2020-11-02 22:40:24 +01:00
trml 6fc1316d63 Fix combined player/ping sorting function 2020-10-24 01:17:03 +02:00
Jupeyy bdb53e3dad Fix two more filter out of bounds 2020-10-18 18:41:18 +02:00
Learath2 48548090be Fix 2 leaks in CServerBrowser 2020-10-13 18:05:59 +02:00
def 23db49db63 Server browser: Don't access friends out of bounds
src/engine/client/serverbrowser.cpp:295:88: runtime error: index 64 out of bounds for type 'CServerInfo::CClient [64]'
    #0 0x565020e035bd in CServerBrowser::Filter() /media/ddnet/src/engine/client/serverbrowser.cpp:295:128
    #1 0x565020e053b3 in CServerBrowser::Sort() /media/ddnet/src/engine/client/serverbrowser.cpp:352:2
    #2 0x565020e0c364 in CServerBrowser::Set(NETADDR const&, int, int, CServerInfo const*) /media/ddnet/src/engine/client/serverbrowser.cpp:620:2
    #3 0x565020cf9854 in CClient::ProcessServerInfo(int, NETADDR*, void const*, int) /media/ddnet/src/engine/client/client.cpp:1524:20
    #4 0x565020cf8132 in CClient::ProcessConnlessPacket(CNetChunk*) /media/ddnet/src/engine/client/client.cpp:1357:4
    #5 0x565020d11656 in CClient::PumpNetwork() /media/ddnet/src/engine/client/client.cpp:2575:5
    #6 0x565020d1ba21 in CClient::Update() /media/ddnet/src/engine/client/client.cpp:2856:2
    #7 0x565020d26efe in CClient::Run() /media/ddnet/src/engine/client/client.cpp:3237:4
    #8 0x565020d48b2e in main /media/ddnet/src/engine/client/client.cpp:4341:11
    #9 0x7f4311524151 in __libc_start_main (/usr/lib/libc.so.6+0x28151)
    #10 0x565020a95e0d in _start (/media/ddnet/DDNet+0x705e0d)
2020-10-11 16:37:03 +02:00
def 7e297aff59 Don't pass null pointer into mem_copy in CServerBrowser
src/base/system.c:261:15: runtime error: null pointer passed as argument 2, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
    #0 0x5651235308dc in mem_copy /media/ddnet/src/base/system.c:261:2
    #1 0x56512375218d in CServerBrowser::Add(NETADDR const&) /media/ddnet/src/engine/client/serverbrowser.cpp:503:3
    #2 0x565123752f6a in CServerBrowser::Set(NETADDR const&, int, int, CServerInfo const*) /media/ddnet/src/engine/client/serverbrowser.cpp:548:13
    #3 0x5651237564cb in CServerBrowser::Refresh(int) /media/ddnet/src/engine/client/serverbrowser.cpp:705:6
    #4 0x5651239a32f8 in CMenus::Render() /media/ddnet/src/game/client/components/menus.cpp:1164:21
    #5 0x5651239bd331 in CMenus::OnRender() /media/ddnet/src/game/client/components/menus.cpp:2338:2
    #6 0x565123b878f6 in CGameClient::OnRender() /media/ddnet/src/game/client/gameclient.cpp:676:28
    #7 0x56512363b5ee in CClient::Render() /media/ddnet/src/engine/client/client.cpp:1134:16
    #8 0x56512367095f in CClient::Run() /media/ddnet/src/engine/client/client.cpp:3285:7
    #9 0x565123690b7e in main /media/ddnet/src/engine/client/client.cpp:4341:11
    #10 0x7fa8487e8151 in __libc_start_main (/usr/lib/libc.so.6+0x28151)
    #11 0x5651233dde0d in _start (/media/ddnet/DDNet+0x705e0d)
2020-10-11 16:37:03 +02:00
def 3be8a592e5 Run clang-format
Purely automatic change. In case of conflict with this change, apply the
other change and rerun the formatting to restore it:

$ python scripts/fix_style.py
2020-09-26 21:50:15 +02:00
def f8fc11b880 clang-format 2020-09-26 21:33:36 +02:00
def f74cc43f4c Remove pure server filters, add space for Countries/Types
Not so relevant anymore
2020-09-26 21:33:25 +02:00
def 3e58d8b756 Increase br_max_requests to 100
As suggested by BannZay on Discord. We scale down when we notice that
no responses arrive. The idea is that player's internet has become
faster than when DDNet started, so increasing the default is ok.
2020-09-17 17:41:14 +02:00
bors[bot] 7a1d2c0f4e
Merge #2715
2715: Fix server responses handling in game browser r=heinrich5991 a=BannZay

Fixes all problems for #2620

Explanations of existed problems:
Lan has non expected servers because we were creating browser entry regardless token check
DDNet tab has ping 0 for servers as we weren`t rejecting previous refresh responses

Co-authored-by: Andrii <bannzay3@gmail.com>
2020-09-03 01:37:37 +00:00
Andrii 840d8cb1a7 reset token seed on browser refresh 2020-09-03 03:03:22 +03:00
Andrii 836c56aeb5 create serverbrowser entry only after broadcast token check 2020-09-03 02:51:33 +03:00
Andrii a215e375db allow empty max ping filter 2020-09-02 19:26:26 +03:00
def 44b1014f41 Load serverbrowser more fairly
One from each country and so on instead of doing one country fully first
before moving to the next. This makes loading servers like Japan and AUS
much faster since they're at the back of the list. This also reduces the
peak number of packets sent to each IP at once.
2020-08-31 00:10:26 +02:00
trml d5c030065a Sort players by descending order first 2020-08-25 02:26:36 +02:00
trml 4abe8caab8 Sort servers by a combination of players and ping as default 2020-08-24 23:25:45 +02:00
def 017b8c3621 Move DDNet-custom json code out of external directory (fixes #2022) 2020-01-01 20:07:04 +01:00
WsYFU 1a16f5b5f0
Update serverbrowser.cpp 2019-10-31 16:16:35 +03:00