Player quit crash - Human::getRawUniqueId() #1220

gizanopatrica · 2017-07-20T07:19:33Z

Issue description

Sometimes, when a player quits, the server crashes

Steps to reproduce the issue

Start your server and let players join
Wait for a player to quit the server
Check if the server crashes

OS and versions

PocketMine-MP: cca9cf2
PHP: 7.02
Server OS: Linux
Game version: PE

Plugins

Reproducible on a server without plugins.

Crashdump, backtrace or other files

PocketMine-MP Crash Dump Thu Jul 20 03:08:54 EDT 2017

Error: Return value of pocketmine\entity\Human::getRawUniqueId() must be of the type string, null returned
File: src/pocketmine/entity/Human
Line: 103
Type: notice

Code:
[94] 	 */
[95] 	public function getUniqueId(){
[96] 		return $this->uuid;
[97] 	}
[98] 
[99] 	/**
[100] 	 * @return string
[101] 	 */
[102] 	public function getRawUniqueId() : string{
[103] 		return $this->rawUUID;
[104] 	}
[105] 
[106] 	/**
[107] 	 * @param string $str
[108] 	 * @param string $skinId
[109] 	 */
[110] 	public function setSkin($str, $skinId){
[111] 		if(!Player::isValidSkin($str)){
[112] 			throw new \InvalidStateException("Specified skin is not valid, must be 8KiB or 16KiB");
[113] 		}

Backtrace:
#0 src/pocketmine/Server(2276): pocketmine\entity\Human->getRawUniqueId()
#1 src/pocketmine/Player(3523): pocketmine\Server->removeOnlinePlayer(pocketmine\Player object)
#2 src/pocketmine/Server(2313): pocketmine\Player->close(string , string Login timeout)
#3 src/pocketmine/Server(2481): pocketmine\Server->checkTickUpdates(integer 343, double 1500534534.4492)
#4 src/pocketmine/Server(2243): pocketmine\Server->tick()
#5 src/pocketmine/Server(2122): pocketmine\Server->tickProcessor()
#6 src/pocketmine/Server(1704): pocketmine\Server->start()
#7 src/pocketmine/PocketMine(511): pocketmine\Server->__construct(BaseClassLoader object, pocketmine\utils\MainLogger object, string phar:///home/minecraft/multicraft/servers/server1178/custom-phar.phar/, string /home/minecraft/multicraft/servers/server1178/, string /home/minecraft/multicraft/servers/server1178/plugins/)
#8 /home/minecraft/multicraft/servers/server1178/custom-phar.phar(1): require_once(string phar:///home/minecraft/multicraft/servers/server1178/custom-phar.phar/src/pocketmine/PocketMine.php)

PocketMine-MP version: 1.7 #0 [Protocol 113; API 3.0.0-ALPHA7]
Git commit: 0000000000000000000000000000000000000000
uname -a: Linux crux.minersplanet.com 2.6.32-642.6.1.el6.x86_64 #1 SMP Wed Oct 5 00:36:12 UTC 2016 x86_64
PHP Version: 7.0.20
Zend version: 3.0.0
OS : Linux, linux

The text was updated successfully, but these errors were encountered:

dktapps · 2017-07-20T07:43:56Z

This and various other bugs occur when a player times out when trying to login. Likely someone attempted to join with an outdated client version. This causes the player to be closed with most of their fields not yet initialized due to LoginPacket not yet having been handled.

jarne · 2017-07-22T07:51:04Z

This happens very often on my server, it crashes after about 5 minutes. Also, the error only occurs since I've updated PocketMine to cca9cf2. Unfortunately, I don't know on which commit I was before, but it shouldn't be more than 50 commits before this one.

dktapps · 2017-07-22T08:13:15Z

It was amongst the ALPHA7 changes. If you want a quick hack you could remove the string typehint from Human::getRawUniqueId().

teracube · 2017-07-24T16:54:50Z

crashdump tonight

PocketMine-MP Crash Dump Mon Jul 24 18:49:37 CEST 2017

Error: Return value of pocketmine\entity\Human::getRawUniqueId() must be of the type string, null returned
File: src/pocketmine/entity/Human
Line: 103
Type: notice

Code:
[94] 	 */
[95] 	public function getUniqueId(){
[96] 		return $this->uuid;
[97] 	}
[98] 
[99] 	/**
[100] 	 * @return string
[101] 	 */
[102] 	public function getRawUniqueId() : string{
[103] 		return $this->rawUUID;
[104] 	}
[105] 
[106] 	/**
[107] 	 * @param string $str
[108] 	 * @param string $skinId
[109] 	 */
[110] 	public function setSkin($str, $skinId){
[111] 		if(!Player::isValidSkin($str)){
[112] 			throw new \InvalidStateException("Specified skin is not valid, must be 8KiB or 16KiB");
[113] 		}

Backtrace:
#0 src/pocketmine/Server(2254): pocketmine\entity\Human->getRawUniqueId()
#1 src/pocketmine/Player(3489): pocketmine\Server->removeOnlinePlayer(pocketmine\Player object)
#2 src/pocketmine/Server(2291): pocketmine\Player->close(string , string Login timeout)
#3 src/pocketmine/Server(2459): pocketmine\Server->checkTickUpdates(integer 489723, double 1500914977.4925)
#4 src/pocketmine/Server(2221): pocketmine\Server->tick()
#5 src/pocketmine/Server(2100): pocketmine\Server->tickProcessor()
#6 src/pocketmine/Server(1682): pocketmine\Server->start()
#7 src/pocketmine/PocketMine(501): pocketmine\Server->__construct(BaseClassLoader object, pocketmine\utils\MainLogger object, string phar:///home/gsp_1485/g3.hmserv.eu-19144/PocketMine-MP.phar/, string /home/gsp_1485/g3.hmserv.eu-19144/, string /home/gsp_1485/g3.hmserv.eu-19144/plugins/)
#8 /home/gsp_1485/g3.hmserv.eu-19144/PocketMine-MP.phar(1): require(string phar:///home/gsp_1485/g3.hmserv.eu-19144/PocketMine-MP.phar/src/pocketmine/PocketMine.php)

PocketMine-MP version: 1.6.2dev #308 [Protocol 113; API 3.0.0-ALPHA7]
Git commit: f32e8805420c177ac491912108b0815627808421
uname -a: Linux ns3023271.ip-151-80-230.eu 4.4.19-mod-std-ipv6-64 #1 SMP Mon Aug 22 13:05:01 CEST 2016 x86_64
PHP Version: 7.0.17
Zend version: 3.0.0
OS : Linux, linux

Loaded plugins:
PurePerms 1.4.1-dev1 by 64FF00 & ProjectInfinity for API(s) 3.0.0-ALPHA7
BlockPets 1.1.0 by BlockHorizons for API(s) 3.0.0-ALPHA7
ItemCasePE 1.1.0-dev1 by aliuly for API(s) 3.0.0-ALPHA7
FactionsPro 1.4.4-dev1 by Tethered_, HostingItAll.com for API(s) 3.0.0-ALPHA7
SignPortal 1.1.3-dev1 by 99leonchang for API(s) 3.0.0-ALPHA7
AlwaysSpawn 2.2.3-dev1 by Philip Shilling for API(s) 3.0.0-ALPHA7
Cameraman 1.1.0-dev by ChalkPE for API(s) 3.0.0-ALPHA7
TreasureChest 1.2.1 by Awzaw for API(s) 3.0.0-ALPHA7
SimpleAuth 1.8.1-dev1 by PocketMine Team, shoghicp, awzaw for API(s) 3.0.0-ALPHA7
SimpleAuthHelper 2.0.5-dev1 by aliuly for API(s) 3.0.0-ALPHA7
PiggyCustomEnchants 1.0.2 by DaPigGuy for API(s) 3.0.0-ALPHA7
essentialsTP 1.1.1-dev2 by  for API(s) 3.0.0-ALPHA7
ChatToDiscord 1.1.0 by eDroid for API(s) 3.0.0, 3.0.0-ALPHA6, 3.0.0-ALPHA7
Parkour 1.5.3 by jdcraft for API(s) 3.0.0-ALPHA7

----------------------REPORT THE DATA BELOW THIS LINE-----------------------

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===END CRASH DUMP===

dktapps · 2017-07-25T09:03:31Z

This issue was fixed in 6ff92f2, however I'm leaving this open due to the wide range of potential other issues that could arise due to the current bad design.

teracube · 2017-07-26T11:14:55Z

Hi,

Is the bug fixed because today my server crashed with :

PocketMine-MP_1.6.2dev-311_7d777510_API-3.0.0-ALPHA7.phar

Critical Error :

2017-07-26 [13:09:17] �[Server thread/CRITICAL]: TypeError: "Return value of pocketmine\entity\Human::getRawUniqueId() must be of the type string, null returned" (EXCEPTION) in "src/pocketmine/entity/Human" at line 103�
2017-07-26 [13:09:31] �[Server thread/CRITICAL]: [Network] Stopped interface pocketmine\network\mcpe\RakLibInterface due to Return value of pocketmine\Player::getDisplayName() must be of the type string, null returned�
2017-07-26 [13:10:19] �[Server thread/INFO]: [CONSOLE: Stopping the server]�

Plugins :
PurePerms 1.4.1-dev1; BlockPets 1.1.0; ItemCasePE 1.1.0-dev1; FactionsPro 1.4.4-dev1; SignPortal 1.1.3-dev1; AlwaysSpawn 2.2.3-dev1; Cameraman 1.1.0-dev; TreasureChest 1.2.1; PureEntitiesX 0.2.2_dev; SimpleAuth 1.8.1-dev1; SimpleAuthHelper 2.0.5-dev1; PiggyCustomEnchants 1.0.2; essentialsTP 1.1.1-dev2; ChatToDiscord 1.1.0; Parkour 1.5.3

Thanks

Player and network really need to get divorced, and fast.

dktapps · 2017-07-27T10:28:17Z

@gizanopatrica
version: 1.7
For future reference, we will not provide support for third-party modified variants of PocketMine-MP.

gizanopatrica · 2017-07-27T11:41:50Z

@dktapps Yes, apologies for that - I use my own fork in which I edited the version and support for any plugin API version...

dktapps mentioned this issue Jul 20, 2017

Player quit issue - Player::getDisplayName() #1221

Closed

dktapps added Category: Core Related to internal functionality Status: Debugged Cause of the bug has been found, but not fixed labels Jul 20, 2017

dktapps added the Priority: Critical label Jul 23, 2017

dktapps marked this as a duplicate of #1237 Jul 24, 2017

dktapps mentioned this issue Jul 24, 2017

Crash PocketMine-MP version: 1.6.2dev #308 - Error: Return value of pocketmine\entity\Human::getRawUniqueId() must be of the type string, null returned #1237

Closed

dktapps added a commit that referenced this issue Jul 27, 2017

More hack-fixes for #1220

8274f5b

Player and network really need to get divorced, and fast.

pmmp locked and limited conversation to collaborators Sep 14, 2017

pmmp deleted a comment Sep 14, 2017

pmmp unlocked this conversation Sep 14, 2017

dktapps closed this as completed Sep 21, 2017

dktapps added Resolution: Fixed and removed Priority: Critical Status: Debugged Cause of the bug has been found, but not fixed labels Sep 21, 2017

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Player quit crash - Human::getRawUniqueId() #1220

Player quit crash - Human::getRawUniqueId() #1220

gizanopatrica commented Jul 20, 2017 •

edited

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dktapps commented Jul 20, 2017

jarne commented Jul 22, 2017

dktapps commented Jul 22, 2017

teracube commented Jul 24, 2017 •

edited by dktapps

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dktapps commented Jul 25, 2017

teracube commented Jul 26, 2017 •

edited

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dktapps commented Jul 27, 2017

gizanopatrica commented Jul 27, 2017

Player quit crash - Human::getRawUniqueId() #1220

Player quit crash - Human::getRawUniqueId() #1220

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gizanopatrica commented Jul 20, 2017 • edited Loading

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dktapps commented Jul 20, 2017

jarne commented Jul 22, 2017

dktapps commented Jul 22, 2017

teracube commented Jul 24, 2017 • edited by dktapps Loading

dktapps commented Jul 25, 2017

teracube commented Jul 26, 2017 • edited Loading

dktapps commented Jul 27, 2017

gizanopatrica commented Jul 27, 2017

gizanopatrica commented Jul 20, 2017 •

edited

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teracube commented Jul 24, 2017 •

edited by dktapps

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teracube commented Jul 26, 2017 •

edited

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