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Property 'm_iHealth' not found. Disconnected players are not properly handled. #551

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gregor256 opened this issue Jul 8, 2024 · 0 comments
Open

Property 'm_iHealth' not found. Disconnected players are not properly handled. #551

gregor256 opened this issue Jul 8, 2024 · 0 comments

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@gregor256
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Description
Hi, I've tried to parse a demo from match containing disconnected player. The code just gets the health of every player on every game tick. I've got panic error property 'm_iHealth' not found.
I provide my ideas at the end of issue.

Stacktrace 
            2024/07/08 22:51:59 failed to parse demo: property 'm_iHealth' not found
	
            stacktrace:
	goroutine 18 [running]:
	runtime/debug.Stack()
	/usr/local/go/src/runtime/debug/stack.go:24 +0x5e
	github.com/markus-wa/demoinfocs-golang/v4/pkg/demoinfocs.NewParserWithConfig.func1({0x6f77e0, 0xc002fe8a00})
	/home/gregor/go/pkg/mod/github.com/markus-wa/demoinfocs-golang/v4@v4.2.3/pkg/demoinfocs/parser.go:403 +0x2a
	github.com/markus-wa/godispatch.(*Dispatcher).dispatchWithRecover.func1()
	/home/gregor/go/pkg/mod/github.com/markus-wa/godispatch@v1.4.1/dispatch.go:197 +0x3b
	panic({0x6f77e0?, 0xc002fe8a00?})
	/usr/local/go/src/runtime/panic.go:770 +0x132
	github.com/markus-wa/godispatch.callConsumerCode.func1()
	/home/gregor/go/pkg/mod/github.com/markus-wa/godispatch@v1.4.1/dispatch.go:122 +0x54
	panic({0x6f77e0?, 0xc002fe89f0?})
	/usr/local/go/src/runtime/panic.go:770 +0x132
	github.com/markus-wa/godispatch.callConsumerCode.func1()
	/home/gregor/go/pkg/mod/github.com/markus-wa/godispatch@v1.4.1/dispatch.go:122 +0x54
	panic({0x69f800?, 0xc002fe89e0?})
	/usr/local/go/src/runtime/panic.go:770 +0x132
	github.com/markus-wa/demoinfocs-golang/v4/pkg/demoinfocs/sendtables2.(*Entity).PropertyValueMust(0x3?, {0x7ad272, 0x9})
	/home/gregor/go/pkg/mod/github.com/markus-wa/demoinfocs-golang/v4@v4.2.3/pkg/demoinfocs/sendtables2/entity.go:170 +0x134
	github.com/markus-wa/demoinfocs-golang/v4/pkg/demoinfocs/common.getInt(...)
	/home/gregor/go/pkg/mod/github.com/markus-wa/demoinfocs-golang/v4@v4.2.3/pkg/demoinfocs/common/entity_util.go:10
	github.com/markus-wa/demoinfocs-golang/v4/pkg/demoinfocs/common.(*Player).Health(0xc0009136c0)
	/home/gregor/go/pkg/mod/github.com/markus-wa/demoinfocs-golang/v4@v4.2.3/pkg/demoinfocs/common/player.go:373 +0x129
	main.testExtractReplays.func1({0x0?, 0x466913?})
	/home/gregor/issue/example.go:29 +0x56
	reflect.Value.call({0x6a0500?, 0xc00014e360?, 0x0?}, {0x7abdcb, 0x4}, {0xc0005a5178, 0x1, 0x6b7600?})
	/usr/local/go/src/reflect/value.go:596 +0xca6
	reflect.Value.Call({0x6a0500?, 0xc00014e360?, 0x40f822?}, {0xc0005a5178?, 0x10?, 0x780000c0005a5108?})
	/usr/local/go/src/reflect/value.go:380 +0xb9
	github.com/markus-wa/godispatch.callConsumerCode({0x6a0500?, 0xc00014e360?, 0xc0005a5190?}, {0xc0005a5178?, 0x713fef2455e8?, 0xc0004854e0?})
	/home/gregor/go/pkg/mod/github.com/markus-wa/godispatch@v1.4.1/dispatch.go:125 +0x3f
	github.com/markus-wa/godispatch.(*Dispatcher).Dispatch(0xc0000ca300, {0x6e19c0, 0xc0009136c0})
	/home/gregor/go/pkg/mod/github.com/markus-wa/godispatch@v1.4.1/dispatch.go:111 +0x20c
	github.com/markus-wa/demoinfocs-golang/v4/pkg/demoinfocs.(*parser).bindNewPlayerControllerS2.func1({{0x0, 0x0, 0x0}, 0x0, 0x0, {0x0, 0x0, 0x0}, {0x7fb848, 0x0}, ...})
	/home/gregor/go/pkg/mod/github.com/markus-wa/demoinfocs-golang/v4@v4.2.3/pkg/demoinfocs/datatables.go:587 +0xf2
	github.com/markus-wa/demoinfocs-golang/v4/pkg/demoinfocs/sendtables2.(*Entity).readFields(0xc0003e8ee0, 0xc0030a31d0, 0xc0005a55f0)
	/home/gregor/go/pkg/mod/github.com/markus-wa/demoinfocs-golang/v4@v4.2.3/pkg/demoinfocs/sendtables2/entity.go:454 +0x319
	github.com/markus-wa/demoinfocs-golang/v4/pkg/demoinfocs/sendtables2.(*Parser).OnPacketEntities(0xc0000f0280, 0xc000b1a360)
	/home/gregor/go/pkg/mod/github.com/markus-wa/demoinfocs-golang/v4@v4.2.3/pkg/demoinfocs/sendtables2/entity.go:562 +0x68c
	reflect.Value.call({0x6abde0?, 0xc0000d6438?, 0x0?}, {0x7abdcb, 0x4}, {0xc0005a5ef0, 0x1, 0xdea19000?})
	/usr/local/go/src/reflect/value.go:596 +0xca6
	reflect.Value.Call({0x6abde0?, 0xc0000d6438?, 0x40f822?}, {0xc0005a5ef0?, 0x21f66fd6105?, 0x6e00000000000000?})
	/usr/local/go/src/reflect/value.go:380 +0xb9
	github.com/markus-wa/godispatch.callConsumerCode({0x6abde0?, 0xc0000d6438?, 0xc0005a5f08?}, {0xc0005a5ef0?, 0xc0005a5ec0?, 0xc0005a5ec0?})
	/home/gregor/go/pkg/mod/github.com/markus-wa/godispatch@v1.4.1/dispatch.go:125 +0x3f
	github.com/markus-wa/godispatch.(*Dispatcher).Dispatch(0xc0000ca2a0, {0x798a80, 0xc000b1a360})
	/home/gregor/go/pkg/mod/github.com/markus-wa/godispatch@v1.4.1/dispatch.go:111 +0x20c
	github.com/markus-wa/godispatch.(*Dispatcher).dispatchWithRecover(0xc0000ca2b8?, {0x798a80?, 0xc000b1a360?})
	/home/gregor/go/pkg/mod/github.com/markus-wa/godispatch@v1.4.1/dispatch.go:202 +0x4f
	github.com/markus-wa/godispatch.(*Dispatcher).dispatchQueue(0xc0000ca2a0, 0xc0000ca360)
	/home/gregor/go/pkg/mod/github.com/markus-wa/godispatch@v1.4.1/dispatch.go:177 +0xd0
	created by github.com/markus-wa/godispatch.(*Dispatcher).AddQueues in goroutine 1
	/home/gregor/go/pkg/mod/github.com/markus-wa/godispatch@v1.4.1/dispatch.go:162 +0x18a
	panic: failed to parse demo: property 'm_iHealth' not found
	stacktrace:
	goroutine 18 [running]:
	runtime/debug.Stack()
	/usr/local/go/src/runtime/debug/stack.go:24 +0x5e
	github.com/markus-wa/demoinfocs-golang/v4/pkg/demoinfocs.NewParserWithConfig.func1({0x6f77e0, 0xc002fe8a00})
	/home/gregor/go/pkg/mod/github.com/markus-wa/demoinfocs-golang/v4@v4.2.3/pkg/demoinfocs/parser.go:403 +0x2a
	github.com/markus-wa/godispatch.(*Dispatcher).dispatchWithRecover.func1()
	/home/gregor/go/pkg/mod/github.com/markus-wa/godispatch@v1.4.1/dispatch.go:197 +0x3b
	panic({0x6f77e0?, 0xc002fe8a00?})
	/usr/local/go/src/runtime/panic.go:770 +0x132
	github.com/markus-wa/godispatch.callConsumerCode.func1()
	/home/gregor/go/pkg/mod/github.com/markus-wa/godispatch@v1.4.1/dispatch.go:122 +0x54
	panic({0x6f77e0?, 0xc002fe89f0?})
	/usr/local/go/src/runtime/panic.go:770 +0x132
	github.com/markus-wa/godispatch.callConsumerCode.func1()
	/home/gregor/go/pkg/mod/github.com/markus-wa/godispatch@v1.4.1/dispatch.go:122 +0x54
	panic({0x69f800?, 0xc002fe89e0?})
	/usr/local/go/src/runtime/panic.go:770 +0x132
	github.com/markus-wa/demoinfocs-golang/v4/pkg/demoinfocs/sendtables2.(*Entity).PropertyValueMust(0x3?, {0x7ad272, 0x9})
	/home/gregor/go/pkg/mod/github.com/markus-wa/demoinfocs-golang/v4@v4.2.3/pkg/demoinfocs/sendtables2/entity.go:170 +0x134
	github.com/markus-wa/demoinfocs-golang/v4/pkg/demoinfocs/common.getInt(...)
	/home/gregor/go/pkg/mod/github.com/markus-wa/demoinfocs-golang/v4@v4.2.3/pkg/demoinfocs/common/entity_util.go:10
	github.com/markus-wa/demoinfocs-golang/v4/pkg/demoinfocs/common.(*Player).Health(0xc0009136c0)
	/home/gregor/go/pkg/mod/github.com/markus-wa/demoinfocs-golang/v4@v4.2.3/pkg/demoinfocs/common/player.go:373 +0x129
	main.testExtractReplays.func1({0x0?, 0x466913?})
	/home/gregor/issue/example.go:29 +0x56
	reflect.Value.call({0x6a0500?, 0xc00014e360?, 0x0?}, {0x7abdcb, 0x4}, {0xc0005a5178, 0x1, 0x6b7600?})
	/usr/local/go/src/reflect/value.go:596 +0xca6
	reflect.Value.Call({0x6a0500?, 0xc00014e360?, 0x40f822?}, {0xc0005a5178?, 0x10?, 0x780000c0005a5108?})
	/usr/local/go/src/reflect/value.go:380 +0xb9
	github.com/markus-wa/godispatch.callConsumerCode({0x6a0500?, 0xc00014e360?, 0xc0005a5190?}, {0xc0005a5178?, 0x713fef2455e8?, 0xc0004854e0?})
	/home/gregor/go/pkg/mod/github.com/markus-wa/godispatch@v1.4.1/dispatch.go:125 +0x3f
	github.com/markus-wa/godispatch.(*Dispatcher).Dispatch(0xc0000ca300, {0x6e19c0, 0xc0009136c0})
	/home/gregor/go/pkg/mod/github.com/markus-wa/godispatch@v1.4.1/dispatch.go:111 +0x20c
	github.com/markus-wa/demoinfocs-golang/v4/pkg/demoinfocs.(*parser).bindNewPlayerControllerS2.func1({{0x0, 0x0, 0x0}, 0x0, 0x0, {0x0, 0x0, 0x0}, {0x7fb848, 0x0}, ...})
	/home/gregor/go/pkg/mod/github.com/markus-wa/demoinfocs-golang/v4@v4.2.3/pkg/demoinfocs/datatables.go:587 +0xf2
	github.com/markus-wa/demoinfocs-golang/v4/pkg/demoinfocs/sendtables2.(*Entity).readFields(0xc0003e8ee0, 0xc0030a31d0, 0xc0005a55f0)
	/home/gregor/go/pkg/mod/github.com/markus-wa/demoinfocs-golang/v4@v4.2.3/pkg/demoinfocs/sendtables2/entity.go:454 +0x319
	github.com/markus-wa/demoinfocs-golang/v4/pkg/demoinfocs/sendtables2.(*Parser).OnPacketEntities(0xc0000f0280, 0xc000b1a360)
	/home/gregor/go/pkg/mod/github.com/markus-wa/demoinfocs-golang/v4@v4.2.3/pkg/demoinfocs/sendtables2/entity.go:562 +0x68c
	reflect.Value.call({0x6abde0?, 0xc0000d6438?, 0x0?}, {0x7abdcb, 0x4}, {0xc0005a5ef0, 0x1, 0xdea19000?})
	/usr/local/go/src/reflect/value.go:596 +0xca6
	reflect.Value.Call({0x6abde0?, 0xc0000d6438?, 0x40f822?}, {0xc0005a5ef0?, 0x21f66fd6105?, 0x6e00000000000000?})
	/usr/local/go/src/reflect/value.go:380 +0xb9
	github.com/markus-wa/godispatch.callConsumerCode({0x6abde0?, 0xc0000d6438?, 0xc0005a5f08?}, {0xc0005a5ef0?, 0xc0005a5ec0?, 0xc0005a5ec0?})
	/home/gregor/go/pkg/mod/github.com/markus-wa/godispatch@v1.4.1/dispatch.go:125 +0x3f
	github.com/markus-wa/godispatch.(*Dispatcher).Dispatch(0xc0000ca2a0, {0x798a80, 0xc000b1a360})
	/home/gregor/go/pkg/mod/github.com/markus-wa/godispatch@v1.4.1/dispatch.go:111 +0x20c
	github.com/markus-wa/godispatch.(*Dispatcher).dispatchWithRecover(0xc0000ca2b8?, {0x798a80?, 0xc000b1a360?})
	/home/gregor/go/pkg/mod/github.com/markus-wa/godispatch@v1.4.1/dispatch.go:202 +0x4f
	github.com/markus-wa/godispatch.(*Dispatcher).dispatchQueue(0xc0000ca2a0, 0xc0000ca360)
	/home/gregor/go/pkg/mod/github.com/markus-wa/godispatch@v1.4.1/dispatch.go:177 +0xd0
	created by github.com/markus-wa/godispatch.(*Dispatcher).AddQueues in goroutine 1
	/home/gregor/go/pkg/mod/github.com/markus-wa/godispatch@v1.4.1/dispatch.go:162 +0x18a
            goroutine 1 [running]:
	log.Panicf({0x7b2710?, 0x6a0500?}, {0xc0018caf10?, 0x0?, 0x0?})
	/usr/local/go/src/log/log.go:439 +0x65
	main.testExtractReplays()
	/home/gregor/issue/example.go:37 +0x1ed
	main.main()
	/home/gregor/issue/example.go:12 +0xf
	exit status 2

To Reproduce
To Reproduce you may download demo: disconnected_de_anubis.dem and run the following code.

Code:

package main

import (
	"fmt"
	"log"
	"os"

	dem "github.com/markus-wa/demoinfocs-golang/v4/pkg/demoinfocs"
)

func main() {
	testExtractReplays()
}

func testExtractReplays() error {
	reader, _ := os.Open("disconnected_de_anubis.dem")
	parser := dem.NewParser(reader)
	defer parser.Close()
	var dummy int
	parser.RegisterEventHandler(func(any) {
		gs := parser.GameState()
		for _, player := range gs.Participants().Playing() {
			dummy = player.Health()
		}
	})
	err := parser.ParseToEnd()
	if err != nil {
		if err != dem.ErrInvalidFileType {
			log.Panicf("failed to parse demo: %v", err)
		}
	}
	fmt.Println(dummy)
	return nil
}

Expected behavior
Clear parsing to end without errors printing 0 as last player health.

Library version
v4.2.3

My solution
Main problem is that user with steamId = 76561198886630731 is listed in participants. He is disconnected, but all methods are tried to be applied to him. But his "entity" doesn't contain needed properties.
This patch #489 does not solve the problem because this player has property p.Entity.PropertyValue("m_hPawn"). This checking does not find that he is disconnected.

For me helped adding this checking:

parser.RegisterEventHandler(func(any) {
	gs := parser.GameState()
	for _, player := range gs.Participants().Playing() {
		if player == nil || player.PlayerPawnEntity() == nil ||
			player.PlayerPawnEntity().ServerClass().Name() != "CCSPlayerPawn" {
			continue
		}
		dummy = player.Health()
	}
})

Maybe this checking should be made in all places mentioned in #489.
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@gregor256