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Commit Graph

366 Commits

Author SHA1 Message Date
Angen
8cec96270b Don't create thread on failed connection
Differential revision: D4545
Fixes: #6442

This was SVN commit r26649.
2022-03-14 17:19:42 +00:00
bb
8eecc39e71 Let the Gamesetup.cpp Autostart (starting from cl) use the gamesettings via the autostart gui page.
Comments and testing By: Langbart
Fixes #6433
Differential Revision: D4492
Includes/Obsoletes D4287

This was SVN commit r26584.
2022-03-06 21:12:16 +00:00
410d2e883a Remove leftover terrain-based movement cost code.
6581796103 removed the ability for terrain to affect movement speed. The
JPS pathfinder cannot support it, and the approach was poor anyways,
coupling rendering data with simulation data.
This lets us remove the dependency on CTerrainTextureManager everywhere.

Tested by: langbart
Differential Revision: https://code.wildfiregames.com/D4459
This was SVN commit r26269.
2022-01-29 08:22:28 +00:00
b6012ec606 Fix false positive; undefined variable in NetworkClient.cpp
refs #6321 for further cleanups.
Discussed with: @wraitii
Differential Revision: https://code.wildfiregames.com/D4258
This was SVN commit r25908.
2021-09-09 18:00:17 +00:00
96708cc6a5 Adds header for forward declarations of CStr.
This was SVN commit r25905.
2021-09-09 17:39:08 +00:00
a5c82a4ef6 Removes unused forward declarations of class and struct.
This was SVN commit r25903.
2021-09-08 19:43:01 +00:00
8af0689b5f Fix gamesetup player assignment issue when joining
Switch some logic from C++ to JS in PREGAME for player assignments. Refs
#3049

Fixes #6204

Reported by: Imarok
Tested By: Imarok
Differential Revision: https://code.wildfiregames.com/D4092
This was SVN commit r25699.
2021-06-06 08:02:28 +00:00
d9d19543b5 Adds std namespace to shared_ptr usages in network and engine.
This was SVN commit r25527.
2021-05-22 19:28:40 +00:00
d7a4fb7c20 Try to punch a hole through local firewalls, and fallback to localhost.
Fixes (probably rare) regression in 2034136560.

Differential Revision: https://code.wildfiregames.com/D3999
This was SVN commit r25515.
2021-05-22 08:34:00 +00:00
7bfcd9f78b Additional entropy when hashing match passwords.
The purpose of our client-side hashing for lobby game passwords is to
prevent malicious hosts from getting valuable passwords from clients
(e.g. accidentally typing their lobby password instead of the game, or
even their email password, etc).
However, the hashing was deterministic (and rather simple), making it
possible to compute rainbow tables and recover user passwords anyways.

By adding more variation, including some that cannot so easily be
controlled by the host (the client name), this becomes impractical. The
password hashing function used is rather fast, but given the base low
probability of mistypes, this seems fine.

Differential Revision: https://code.wildfiregames.com/D3459
This was SVN commit r25459.
2021-05-18 14:47:36 +00:00
895e4e6aa6 StunClient code cleanup: use enet functions, endianness
Instead of using platform-specific sockets, use enet_socket* functions
(which ends up doing the same).
Clean up some confusing APIs, removing the distinction between finding
the public IP for the host/join.

Fix endianness support & use simpler code.

Refs D364 / 61261d14fc (and some subsequent fixing diffs).

Differential Revision: https://code.wildfiregames.com/D3970
This was SVN commit r25453.
2021-05-17 15:14:10 +00:00
2034136560 Implement a workaround for routers without NAT loopback.
This allows joining a lobby game hosted on the same network (behind the
same NAT gateway).
This is relatively primitive to keep things simple: if the server and
the client have the same public IP, it is assumed that they are on the
same network and the client instead requests the local IP.

Differential Revision: https://code.wildfiregames.com/D3944
This was SVN commit r25448.
2021-05-16 15:34:38 +00:00
4f972bc623 Split off JSON-related function from ScriptInterface, clean up headers.
Follows 34b1920e7b.

JSON functions and ToString are movec to their own headers.
Also clean out a few PersistentRooted usage to use the 2-phase init to
clean up scriptInterface usage.

With these functions split off, we can finally clean out headers and
remove ScriptInterface.h from most of them, in favour of smaller and
more precise headers.


Take the opportunity to clarify some comments regarding Mutability.

Differential Revision: https://code.wildfiregames.com/D3961
This was SVN commit r25434.
2021-05-14 10:18:03 +00:00
0f60bf3a97 Split off Object-related functions from ScriptInterface
Follows 34b1920e7b.

This splits off the object-related functions, such as
[Set/Get/Has]Property, CreateObject, CreateArray, FreezeObject.

It also puts the definitions in the header itself, which might end up
with faster code here & there, though perhaps slower compilation time
(somewhat doubtful since we already included most things anyways).

Differential Revision: https://code.wildfiregames.com/D3956
This was SVN commit r25430.
2021-05-13 17:23:52 +00:00
4ad78018f9 Fix no-pch build. Potentially fixes bb49fbe793, 0198942a79, 34b1920e7b, 8b08f4ae7a 0dbf417171, 3af1fc64d2, 5fbdbaa3bc, 6fbf036ae4.
Comments by: @vladislavbelov, @wraitii.
Differential Revision: https://code.wildfiregames.com/D3948
This was SVN commit r25423.
2021-05-12 13:48:55 +00:00
6fbf036ae4 Split off StructuredClone from ScriptInterface
Follows 34b1920e7b.

This separates StructuredClone & DeepCopy logic into its own header,
reducing the size of the monolithic ScriptInterface header.

Differential Revision: https://code.wildfiregames.com/D3922
This was SVN commit r25419.
2021-05-10 11:51:32 +00:00
e94faf7827 Don't hardcode the "0ad" resource into lobby XMPP & hosting
XMPP JID has a concept of 'resources', which can be used to
differentiate multiple clients of the same account.

We currently hardcode this 'resource' to '0ad' in two places:
- The 0 A.D. client always uses '0ad'
- The network code expects a host resource to be '0ad' when connecting.

As noted in 0fd8aa2a77#31215, it is less effort to store the JI
D directly. This patch does that. It also makes 0 A.D. use a different
resource each time.
Note that resources ought not contain particular information, as the
XMPP server is free to
 clobber it. I keep '0ad-' here for debug purposes.

This allows:
- multiple 0 A.D. instances to log on the lobby at the same time (not
massively useful, but good for debugging sometimes)
- hosting a game with a custom resource, which will potentially make it
easier to have dedi
cated servers on one account.

Note that hosting multiple games on one account is currently not
supported and will have weird behaviour on the lobbybots side. They
should be upgraded independently of this.

Refs #3556

Differential Revision: https://code.wildfiregames.com/D3500
This was SVN commit r25407.
2021-05-09 12:51:32 +00:00
34b1920e7b Split ScriptRequest in its own header.
We often only need to include ScriptRequest.h and not the full
ScriptInterface.h

Differential Revision: https://code.wildfiregames.com/D3920
This was SVN commit r25366.
2021-05-03 16:07:26 +00:00
b55b236379 Remember OOS on a per-client basis.
Change the OOS notification logic to remember the OOS-ness of each
client. Reset it on client leave.
The server will thus continue checking for OOS if the OOS-client leaves.
This is convenient to ignore observer OOS, or wait for an OOS player
without restarting the game.

Also add the turn number to the OOS dump, to fix #3348: particularly
following d4c2cf4430 the turn is likely to not be the same between
different clients.

Agree by: asterix
Differential Revision: https://code.wildfiregames.com/D3753
This was SVN commit r25170.
2021-03-31 15:55:19 +00:00
5ebf2020b0 Netcode: allow observers to lag behind the live game.
Observers no longer lag the game for players. There is still some time
to serialise the game when sending it to a joining observer, and
depending on the chosen 'max lag' the game may stop while observers
sufficiently catch up, but this impact too is reduced.

- Make the NetServerTurnManager ignore players marked as 'observers' for
the purpose of ending a turn, effectively making it possible for
observers to lag without it affecting the players in any way.
- Add a config option (network.observermaxlag) that specifies how many
turns behind the live game observers are allowed to be. Default to 10
turns, or 2 seconds, to keep them 'largely live'.
- The controller is not treated as an observer.
- Implement a simple UI to show this delay & allow the game to speed up
automatically to try and catch up. This can be deactivated via
network.autocatchup.
- Move network options to the renamed 'Network / Lobby' options page.
- Do not debug_warn/crash when receiving commands from the past -
instead warn and carry on, to avoid DOS and "coop play" issues.

Refs #5903, Refs #4210

Differential Revision: https://code.wildfiregames.com/D3737
This was SVN commit r25156.
2021-03-29 07:53:06 +00:00
87a2c3347f Make real directory paths on the VFS predictable (retry)
This is the same commit as 4bb31f084e, reverted in 5d1899785a. Noted
issues were fixed.

Partial revert/fix of 2f19cf86d3 and 2567fee329.

Before this diff, it was possible for a mod containing a cache/ or a
config/ folder to get written to incorrectly.
The issue is VFS can map multiple directories to one 'virtual' path, for
reading mods. However, writing data is problematic: which path to
choose?
The only viable solution is to use a path relative to the highest
priority directory encountered in the VFS path, or write paths could be
'hijacked' by lower-priority mods.

This fixes these issues by:
- Adding a new lookup mode ('Real-path') that explicitly picks the real
path relative to the highest-priority subdirectory in the VFS Path.
- Preventing overwriting a real directory with a lower priority one in
general.
- Revert c0c8132dd4's GetRealPath change, re-introducing the function as
GetOriginalPath.

This also cleans up some duplication that led to empty mod folders in
the user mod path, and cleans up loading the 'user' mod.
It also makes it explicit that a directory must be passed to Mount().

Note that the new 'realpath' lookup can still be somewhat complex with
many mount points at various hierarchy levels, but it is at least
predictable/deterministic without having to be careful about populating
order.

Fixes #2553

Differential Revision: https://code.wildfiregames.com/D3728
This was SVN commit r25107.
2021-03-23 12:46:59 +00:00
5d1899785a Revert 4bb31f084e
4bb31f084e led to an issue in windows-specific code not detected by the
tests. I'll debug later.

This was SVN commit r25105.
2021-03-22 19:52:07 +00:00
4bb31f084e Make real directory paths on the VFS predictable.
Partial revert/fix of 2f19cf86d3 and 2567fee329.

Before this diff, it was possible for a mod containing a cache/ or a
config/ folder to get written to incorrectly.
The issue is VFS can map multiple directories to one 'virtual' path, for
reading mods. However, writing data is problematic: which path to
choose?
The only viable solution is to use a path relative to the highest
priority directory encountered in the VFS path, or write paths could be
'hijacked' by lower-priority mods.

This fixes these issues by:
- Adding a new lookup mode ('Real-path') that explicitly picks the real
path relative to the highest-priority subdirectory in the VFS Path.
- Preventing overwriting a real directory with a lower priority one in
general.
- Revert c0c8132dd4's GetRealPath change, re-introducing the function as
GetOriginalPath.

This also cleans up some duplication that led to empty mod folders in
the user mod path, and cleans up loading the 'user' mod.

Note that the new 'realpath' lookup can still be somewhat complex with
many mount points at various hierarchy levels, but it is at least
predictable/deterministic without having to be careful about populating
order.

Fixes #2553

Differential Revision: https://code.wildfiregames.com/D3217
This was SVN commit r25104.
2021-03-22 18:49:42 +00:00
87fc52b780 MP: don't enforce game init attributes synchronization in PREGAME.
The NetServer stored a complete copy of the game Init Attributes, which
it sent to new clients on updates from the controller. This worked well,
but prevents incremental updates and other unrelated messages from being
sent.

This changes the system so that:
- in PREGAME state, the server does not update its copy of the game init
attributes
- the server forwards game setup messages from the controller to all
clients
- Joining clients get a full copy of the Settings, when joining, from
the controller (this is a js-driven behaviour - other situations might
not need do it).
- Make the StartNetworkGame message take a copy of the final init
attributes, to ensure synchronization (and simplify some logic).

In practice, this:
- makes it possible to send different types of gamesetup messages (this
introduces two: a regular update and the full 'initial-update' for new
clients).
- moves some C++ hardcoding into JS - here in essence the PREGAME server
state is now init-attributes-agnostic.
- does not change much for readiness control - the server already needed
to force a change at game start to set random elements.

Note that the loading page is currently still receiving the 'local' game
attributes, which assumes that all clients are correctly synchronized
(they should be).

Refs #3806, #3049

Differential Revision: https://code.wildfiregames.com/D3714
This was SVN commit r25099.
2021-03-22 10:13:27 +00:00
76c5263607 Rename GameAttributes to InitAttributes
The initial settings for a game, used to create the map in RM & tosetup
the simulation, are named InitAttributes in the C++, but generally
referred to as GameAttributes in the JS GUI. This renames the latter to
the former to avoid confusion, since these settings are immutable once
the map starts, so InitAttributes is more accurate.

Differential Revision: https://code.wildfiregames.com/D3705
This was SVN commit r25083.
2021-03-19 10:02:10 +00:00
2e4639e6dc Removes unused containers included in headers.
This was SVN commit r25004.
2021-03-03 23:01:08 +00:00
c29423c723 Fixes revealed missed includes after e104b41be2.
This was SVN commit r25003.
2021-03-03 22:38:59 +00:00
d4c2cf4430 Increase MP Command delay to 4 turns, decrease MP turns to 200ms.
To hide network latency, MP turns send commands not for the next turn
but N turns after that (introduced in c684c211a2).
Further, MP turn length was increased to 500ms compared to 200ms SP
turns (introduced in 6a15b78c98).
Unfortunately, increasing MP turn length has negative consequences:
- makes pathfinding/unit motion much worse & unit behaviour worse in
general.
- makes the game more 'lag-spikey', since computations are done less
often, but thus then can take more time.

This diff essentially reverts 6a15b78c98, instead increasing
COMMAND_DELAY from 2 to 4 in MP. This:
- Reduces the 'inherent command lag' in MP from 1000ms to 800ms
- Increases the lag range at which MP will run smoothtly from 500ms to
600ms
- makes SP and MP turns behave identically again, removing the
hindrances described above.

As a side effect, single-player was not actually using COMMAND_DELAY,
this is now done (can be used to simulate MP command lag).

Refs #3752

Differential Revision: https://code.wildfiregames.com/D3275
This was SVN commit r25001.
2021-03-03 21:02:57 +00:00
cb346e207b Refactor all usage of RegisterFunction to ScriptFunction::Register
- Replace ScriptInterface::RegisterFunction with
ScriptFunction::Register
 - Mostly removing unused cmpPrivate*
 - Some usage introduces specific getters (mapgenerator, AIWorker,
XmppClient,...)
 - Several passthrough functions are simply removed in favour of calling
the original, reducing duplication
 - Make use of ScriptRequest/ScriptInterface capabilities where
relevant.
- Make JSI_* headers only expose necessary functions, lightening them
considerably and reducing duplication
 - Reuse namespaces in JSI_* implementations directly, reducing visual
noise there

Follows f3aedf88a6

Differential Revision: https://code.wildfiregames.com/D3626
This was SVN commit r24983.
2021-03-02 20:01:14 +00:00
113fefeeb7 Netcode: Identify controller client via a secret key
The 'controller' of an MP game (the host in general, though dedicated
servers would change that) is currently whoever first tells the server
that it is. This can be abused since it relies on trusting the clients.

This changes that logic: the server defines a 'controller secret', and
the first client to sent the correct controller secret is the
controller. This is safe assuming the secret is unknowable enough (the
current solution wouldn't pass strict cryptography tests, but it's
likely good enough).

Reverts 1a3fb29ff3, which introduced the 'trust the clients' mechanic,
as a change over 'the first local IP is controller'.

Necessary step towards dedicated server, if we want to use the regular
gamesetup (Refs #3556)

Differential Revision: https://code.wildfiregames.com/D3075
This was SVN commit r24952.
2021-02-27 17:44:59 +00:00
d078df0b85 Get the public IP from the lobby if not using STUN.
Follow-up to 1a8de6d2b8. This makes it again possible to host without
STUN via the lobby.
The lobby bot will answer the host "Register" command with the external
IP. This is only sent to the host, avoiding IP leakage.

There is a small window in which a client might try to join and the
public IP isn't up, and the request goes through, but that seems rather
unlikely to be a problem in practice.

Refs #5913

Differential Revision: https://code.wildfiregames.com/D3490
This was SVN commit r24858.
2021-02-08 15:47:34 +00:00
Angen
16a91c37e9 Limit possibility of brute force attacks when guessing password
As suggested by elexis, 1a8de6d2b8 should get some protection against
brute force attacks on password.

This is supposed to prevent attackers from getting connection data by
guessing the password.

Each failed attempt increases the counter.
XmppClient on the server side checks for the users with certain number
of failed attempts, determined in CNetServer, and refuses to check the
password, answering with banned message.
So they cant guess again in given match. Effect of this block will
dissapear after new match is created.

Differential revision: D3467
Comments by: wraitii, Stan
Tested by: Stan, Freagarach
Ref: #5913

This was SVN commit r24794.
2021-01-26 20:20:48 +00:00
4cc824d620 Net Server: Verify password in Authenticate
Follows 1a8de6d2b8.
Validate the password when a client joins a game, so even a player that
knows the connection data cannot join.

Refs #3556, Refs #5913

Differential Revision: https://code.wildfiregames.com/D3438
This was SVN commit r24775.
2021-01-23 18:04:36 +00:00
Angen
1a8de6d2b8 Hide ip and port from users until they want to join, add optional password
Current issue with the lobby, is that we make ips of hosts public for
anyone to read. This patch consists of 3 parts.
1.) Removing ips and ports from lobby javascript
2.) Removing need of script on the server to attach public ips to game
stanza by asking the host using xmppclient as proxy.
3.) Implementing password protected matches, to deny this information to
not trusted players.

Further description:
Do not send ports and stunip to the bots.

Removed from stanza.
Do not send ip to the lobby.

Removed from mapping gamelist from backend to gui (still on the backend
side, because it is done by script on 0ad server).
Get ip and ports on request when trying to connect.

On the host side, ask stun server what is host's public ip and remember
it.
On the client side, send iq through xmppclient to the hosting player and
ask for ip, port and if Stun is used, then if answer is success,
continue
   with connecting, else fail.
Add optional password for matches.

Add password required identifier to the stanza.
Allow host to setup password for the match. Hash it on the host side and
store inside Netserver. If no password is given, matches will behave
as it is not required.
On the client side, if password for the match is required, show
additional window before trying to connect and ask for password, then
hash it
and send with iq request for ip, port and stun.
Server will answer with ip, port and stun only if passwords matches,
else will asnwer with error string.
Some security:
Passwords are hashed before sending, so it is not easy to guess what
users typed. (per wraitii)
Hashes are using different salt as lobby hashing and not using usernames
as salt (as that is not doable), so they are different even typing the
same password as for the lobby account.
Client remembers which user was asked for connection data and iq's id of
request. If answer doesn't match these things, it is ignored. (thnx
user1)
Every request for connection data is logged with hostname of the
requester to the mainlog file (no ips).
If user gets iq to send connection data and is not hosting the match,
will respond with error string "not_server".
If server gets iq::result with connection data, request is ignored.

Differential revision: D3184
Reviewed by: @wraitii
Comments by: @Stan, @bb, @Imarok, @vladislavbelov
Tested in lobby

This was SVN commit r24728.
2021-01-20 18:31:39 +00:00
292d2c5d19 NetClient: don't LOGERROR when flushing messages while disconnected.
The NetClient code is now threaded, and this means it can try to flush
messages while 'knowingly' being disconnected.
This can be avoided by storing some state in NetClientSession

Improves 2d40068cd1, refs #3700

Differential Revision: https://code.wildfiregames.com/D3352
This was SVN commit r24616.
2021-01-15 07:54:55 +00:00
5ee8354e99 Fix windows SEH hook when crashing in an std::thread
Follows 107d3d461f and other 'pthread->std::thread' diffs.

Windows uses Structured Exception Handling to allow reporting errors
(both C++ and hardware) nicely. This works by wrapping the code in a
__try __catch block.
The pthread wrapper did this automatically, but we now need to do it
explicitly for std::thread.

Tested by: Stan
Differential Revision: https://code.wildfiregames.com/D3261
This was SVN commit r24530.
2021-01-10 08:39:54 +00:00
2d40068cd1 Thread the NetClient session.
This threads the netclient session, which avoids timeouts when the
main-thread is not polling (map creation, very long simulation frames).

Unlike the NetServer, which should be as independent as possible from
the main thread, the NetClient is fundamentally tied to the game thread.
Therefore, this only threads the session object.
To ensure good performance and ease-of-use, lock-free queues for
in/out-going messages are used.

This fixes artificial timeouts, while also improving actual ping reports
(since frame-time is no longer a factor).
It effectively reverts D1513/eda236522c and 2e7e1c0b2b, all hacks around
lag-timeouts (and bits of 1a3fb29ff3).

Based on a patch by: Stan
Comments by: Vladislavbelov
Fixes #3700, refs #3373

Differential Revision: https://code.wildfiregames.com/D2848
This was SVN commit r24518.
2021-01-06 15:26:11 +00:00
0221e70e51 Fix two Clang warnings.
This was SVN commit r24512.
2021-01-05 11:49:24 +00:00
e009d322cc Add missing files in 4942cabab5
This was SVN commit r24488.
2020-12-31 14:27:02 +00:00
369c2e8801 Further header & precompiled cleanup, fix no-PCH builds.
GUIObjectBase is made a IGUIObject* to avoid including those headers
un-necessarily. Subsequent diffs ought to clean up the various of
pointers for that with a similar type with reference semantics.

Also:
- Add standard C and C++ headers (mostly cstring for memcpy, string and
vector) where needed.
- Swap out some includes for forward declarations
- Clean up un-necessary boost includes in precompiled and other headers.
- Clean up precompiled headers, including fewer things.
- Move ACPI to the windows-specific folder as it's included there only
and mostly specific to that platform.

Thanks Stan for the testing.

Differential Revision: https://code.wildfiregames.com/D3129
This was SVN commit r24352.
2020-12-09 14:39:14 +00:00
d92a2118b0 [SM78 2/2] Update to Spidermonkey 78 APIs
This ugprades 0 A.D. to the latest ESR at the moment of writing.

Mostly straighforward API changes (see meta-Bug 1633145)
- js::Class is merged with JSClass
- JSNewArrayObject becomes JS::NewArrayObject
- ArrayObject-functions are moved to a new public header Array.h
- JSMSG error messages have again been changed, requiring some tweaks.
- AutoValueArray becomes RootedBalueArray (Bug 1634435)
- 'uneval' is behind a Realm flag (Bug 1565170), but no removal is
planned in the short-term future.
- Some minor GC API changes (Bugs 1569564 and 1633405)
- Error reporting has had some tweaks, and error flags have been removed
(Bug 1620583)
- StructuredClone are now always thread-safe, simplifying an API change
introduced in SM52 (Bug 1607791)

Tested by: Stan, Freagarach, mammadori
Closes #5861

Differential Revision: https://code.wildfiregames.com/D3168
This was SVN commit r24333.
2020-12-06 14:03:02 +00:00
259c57929d Fix MP OOS when rejoining on turn 0
Reported by: elexis
Fixes #5185

Differential Revision: https://code.wildfiregames.com/D3068
This was SVN commit r24275.
2020-11-27 15:41:24 +00:00
9ae084519f Fix most of the new vs2017 induced warnings.
Refs: https://code.wildfiregames.com/D3096
https://code.wildfiregames.com/D3103 #5862
Reviewed by: @wraitii
Comments by: @Angen
Differential Revision: https://code.wildfiregames.com/D3126
This was SVN commit r24268.
2020-11-26 22:28:50 +00:00
f6348b9617 Clean up header includes, add new forward declarations.
This cleans up many un-necessary header includes, either simply
providing nothing or forward declarations in their place.

No major compilation time change here, though this does reduce depencies
in some headers.

Also fix up old MacOS STL-include fixes that are no longer relevant.

Differential Revision: https://code.wildfiregames.com/D3128
This was SVN commit r24227.
2020-11-21 11:20:29 +00:00
fd8f5abd2e [SM52 2/2] Update to Spidermonkey 52 APIs.
No particularly noteworthy changes, as most complex API changes were
already supported in SM45 and done.
The addition of JSStructuredCloneData allows to remove our custom class.

Changes:
- InformalValueTypeName is back in the API, so remove our
implementation.
- Stop using JSRuntime entirely in favour of JSContext*
- JSPropertyDescriptor is renamed.
- CompartmentOptions are tweaked slightly (no functional changes)
- JS::Construct - API update.
- JSClass split - API update.
- A js.msg error message was removed, so we had to use a different one.
- Tests fix: fix comparison of union instances
- Disable warning in spidermonkey Vector.h
- Update error reporting to SM52 (minor API updates)
- Ignore warnings about unused return values (would come from OOM, which
isn't recoverable)

Most of the patching was done by Itms.

Tested by: Stan, Freagarach
Fixes #4893

Differential Revision: https://code.wildfiregames.com/D3095
This was SVN commit r24203.
2020-11-18 14:39:04 +00:00
25490bfec3 Improve JS Exception handling.
- Check for pending exceptions after function calls and script
executions.
- Call LOGERROR instead of JS_ReportError when there is a conversion
error in FromJSVal, since that can only be called from C++ (where JS
errors don't really make sense). Instead, C++ callers of FromJSVal
should handle the failure and, themselves, either report an error or
simply do something else.
- Wrap JS_ReportError since that makes updating it later easier.

This isn't a systematical fix since ToJSVal also ought return a boolean
for failures, and we probably should trigger errors instead of warnings
on 'implicit' conversions, rather a preparation diff.

Part of the SM52 migration, stage: SM45 compatible (actually SM52
incompatible, too).

Based on a patch by: Itms
Comments by: Vladislavbelov, Stan`
Refs #742, #4893

Differential Revision: https://code.wildfiregames.com/D3093
This was SVN commit r24187.
2020-11-15 18:29:17 +00:00
aa15066c69 Rename ScriptRuntime to ScriptContext
SM52 essentially replaces JSRuntime with JSContext (though JSContext
itself was replaced with JSCompartment).
To prepare for this migration, rename all Runtime-related things to
Context.

Part of the SM52 migration, stage: SM45 compatible.

Patch by: Itms
Refs #4893

Differential Revision: https://code.wildfiregames.com/D3091
This was SVN commit r24181.
2020-11-14 10:57:50 +00:00
aae417bd29 Explicitly make ScriptInterface a Compartment wrapper.
ScriptInterface is now a wrapper around a JSCompartment, and thus always
has a well-defined global.

The error reporter is moved to ScriptRuntime in anticipation of that
handling JSContext in a later diff.

Part of the SM52 migration, stage: SM45 compatible.

Patch by: Itms
Tested By: Freagarach
Refs #4893

Differential Revision: https://code.wildfiregames.com/D3090
This was SVN commit r24180.
2020-11-14 08:46:32 +00:00
ab5616b4c4 Mass rename CxPrivate to CmptPrivate.
As part of the SM45->52 migration, a ScriptInterface becomes a wrapper
around a JSCompartment, not a JSContext, thus we ought to store private
data for the compartment and not the context.
This is a mass rename of CxPrivate to CmptPrivate to match that before
the actual changes.

Part of the SM52 migration, stage: SM45 compatible

Patch by: Itms
Tested By: Freagarach
Refs #4893

Differential Revision: https://code.wildfiregames.com/D3089
This was SVN commit r24177.
2020-11-13 16:44:15 +00:00
ee0d204bf6 Wrap JSAutoRequest and replace usage of JSContext* with the wrapper.
JSAutoRequest is required before calling into most JSAPI methods, for GC
reasons.
Calling it is required and fragile as one must not forget.
Further, SM52 and later make manipulating JSContext* dangerous as that
can cross Compartment(Realm in SM68) barriers (and ScriptInterface now
matches a Compartment).

The solution to both problems is to avoid using JSContext* in 0 A.D.
itself. To achieve this, a Request class is introduced, and must be used
to access a JSContext* from a scriptInterface. Further, Request is
passed to other ScriptInterface functions isntead of JSContext*, making
it obvious that the caller has already called it, reducing errors and
redundant JSAutoRequest calls.
Only JSNative functions now get a naked JSContext* without protection,
but the likelihood of forgetting a request is lower since many
ScriptInterface functions now expect it.

JSContext* is directly passed to JSAPI functions only.

Part of the SM52 migration, stage: SM45 compatible

Based on a patch by: Itms
Tested By: Freagarach
Refs #4893

Differential Revision: https://code.wildfiregames.com/D3088
This was SVN commit r24176.
2020-11-13 13:18:22 +00:00