0001964: WSL UNC paths don't have needed prefix - MantisBT

ID	Project	Category	View Status	Date Submitted	Last Update

0001964	Xdebug	Step Debugging	public	2021-04-11 18:52	2022-07-19 12:15

Reporter	Zobo	Assigned To	derick
Priority	normal	Severity	minor	Reproducibility	always
Status	feedback	Resolution	open
Platform	Windows	OS	Windows	OS Version	10
Product Version	3.0.4
Target Version	3.3dev

Summary	0001964: WSL UNC paths don't have needed prefix
Description	I just ran into an issue where Xdebug is presenting a UNC path in such way I cannot map it back to original. I executed a script from an UNC path \WSL$\UBUNTU\home\zobo\php\test1.php Looking at phpinfo() output, php is OK with it: `... $_SERVER['PHP_SELF'] => \\wsl$\Ubuntu\home\zobo\php\test1.php $_SERVER['SCRIPT_NAME'] => \\wsl$\Ubuntu\home\zobo\php\test1.php $_SERVER['SCRIPT_FILENAME'] => \\wsl$\Ubuntu\home\zobo\php\test1.php $_SERVER['PATH_TRANSLATED'] => \\wsl$\Ubuntu\home\zobo\php\test1.php ... $_SERVER['argv'] => Array ( [0] => \\wsl$\Ubuntu\home\zobo\php\test1.php ) ...` However Xdebug presents the files as: [50452] [Step Debug] -> <init xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" fileuri="file://WSL%24/UBUNTU/home/zobo/php/test1.php" language="PHP" xdebug:language_version="8.0.4RC1" protocol_version="1.0" appid="50452"><engine version="3.0.4"><![CDATA[Xdebug]]></engine><author><![CDATA[Derick Rethans]]></author><url><![CDATA[https://xdebug.org]]></url><copyright><![CDATA[Copyright (c) 2002-2021 by Derick Rethans]]></copyright></init> Also true for stack: `[50452] [Step Debug] <- stack_get -i 4 [50452] [Step Debug] -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" command="stack_get" transaction_id="4"><stack where="{main}" level="0" type="file" filename="file://WSL%24/UBUNTU/home/zobo/php/test1.php" lineno="3"></stack></response>` I am not sure if this is true in case of network mapped UNC paths, but I have a strong suspicion it is. See: https://github.com/xdebug/vscode-php-debug/issues/546 In case it's a normal "windows path" the url becomes `file:///C:/...`. So in theory I could infer that it should be prefixed with `\\`, but I'd rather not... Was this already encountered?
Tags	No tags attached.

Operating System
PHP Version	8.0.0-8.0.4

Zobo 2021-04-12 20:09 reporter ~0005825	I read this https://en.wikipedia.org/wiki/File_URI_scheme and am considering this os actually correct...

Zobo 2021-04-14 08:36 reporter ~0005826	Upon further debugging I did find other strange things: First the case is strange: PHP sees: $_SERVER['PHP_SELF'] => \wsl$\Ubuntu\home\zobo\php\test1.php Xdebug sees: file://WSL%24/UBUNTU/home/zobo/php/test1.php If I try to set a breakpoint: [50420] [Step Debug] <- breakpoint_set -i 2 -t line -f file://WSL%24/UBUNTU/home/zobo/php/test1.php -n 4 [50420] [Step Debug] -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" command="breakpoint_set" transaction_id="2" id="504200001"></response> [50420] [Step Debug] <- breakpoint_list -i 3 [50420] [Step Debug] -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" command="breakpoint_list" transaction_id="3"><breakpoint type="line" filename="file://C:/local_disk/zobo/Projects/vscode-php-debug/vscode-php-debug/testproject/WSL$/UBUNTU/home/zobo/php/test1.php" lineno="4" state="enabled" hit_count="0" hit_value="0" id="504200001"></breakpoint></response> It's treated as relative path... This should not be valid in URL context. So in case of windows UNCs I think the syntax should really be encoded as file:////host/path.... I guess this is a far more complex issue than I hoped for... However not being able to set a breakpoint for a UNC path is IMO a bug.

derick 2021-04-16 16:18 administrator ~0005851 Last edited: 2021-04-16 16:18	Xdebug handles UNC paths, and prefixes them with file:// : https://github.com/xdebug/xdebug/blob/master/src/lib/usefulstuff.c#L310-L313 This is an implementation of a specification on the MSFT website: https://docs.microsoft.com/en-us/archive/blogs/ie/file-uris-in-windows Which says: <pre> Proper Syntax For the UNC Windows file path \laptop\My Documents\FileSchemeURIs.doc The corresponding valid file URI in Windows is the following: file://laptop/My%20Documents/FileSchemeURIs.doc For the local Windows file path C:\Documents and Settings\davris\FileSchemeURIs.doc The corresponding valid file URI in Windows is: file:///C:/Documents%20and%20Settings/davris/FileSchemeURIs.doc </pre> And this is exactly what Xdebug does. So I also don't think there is a bug here.

derick 2021-08-07 10:10 administrator ~0005968	I still don't know what to do here... either break "Proper Syntax" that Windows and Wikipedia explain, or ignore it and suggest people mount their drive with a drive letter.

AnrDaemon 2021-08-27 17:38 reporter ~0005995	While "WSL$" has correct casing, I wonder, what was the correct casing for "Ubuntu"? As for PHP's output, it uses what was passed to it. So, if you start script with "\WSL$\…" instead of "\wsl$\…", PHP will output that.

dwade3 2022-07-19 12:15 reporter ~0006348	Hi derick, the problem is that a unc path is requested and at a single point in log file this address is interpreted as local windows file path. requested: file://139.138.58.141/phpinfo.php response: file:///139.138.58.141/phpinfo.php (which is incorrect) log_7_4_30_own.txt (6,941 bytes) [4356] Log opened at 2022-07-19 12:10:32.012137 [4356] [Config] INFO: Trigger value for 'XDEBUG_TRIGGER' not found, falling back to 'XDEBUG_SESSION' [4356] [Step Debug] INFO: Checking remote connect back address. [4356] [Step Debug] INFO: Checking header 'HTTP_X_FORWARDED_FOR'. [4356] [Step Debug] INFO: Checking header 'REMOTE_ADDR'. [4356] [Step Debug] INFO: Client host discovered through HTTP header, connecting to 034c:2284:6de2:e1c3:3ac2:e4bf:c065:a287:9003. [4356] [Step Debug] INFO: Connected to debugging client: 034c:2284:6de2:e1c3:3ac2:e4bf:c065:a287:9003 (from REMOTE_ADDR HTTP header). :-) [4356] [Step Debug] -> <init xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" fileuri="file://139.138.58.141/phpinfo.php" language="PHP" xdebug:language_version="7.4.30" protocol_version="1.0" appid="4356" idekey="PHPSTORM"><engine version="3.1.5"><![CDATA[Xdebug]]></engine><author><![CDATA[Derick Rethans]]></author><url><![CDATA[https://xdebug.org]]></url><copyright><![CDATA[Copyright (c) 2002-2022 by Derick Rethans]]></copyright></init> [4356] [Step Debug] <- feature_set -i 1 -n show_hidden -v 1 [4356] [Step Debug] -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" command="feature_set" transaction_id="1" feature="show_hidden" success="1"></response> [4356] [Step Debug] <- feature_set -i 2 -n max_depth -v 1 [4356] [Step Debug] -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" command="feature_set" transaction_id="2" feature="max_depth" success="1"></response> [4356] [Step Debug] <- feature_set -i 3 -n max_children -v 100 [4356] [Step Debug] -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" command="feature_set" transaction_id="3" feature="max_children" success="1"></response> [4356] [Step Debug] <- feature_set -i 4 -n extended_properties -v 1 [4356] [Step Debug] -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" command="feature_set" transaction_id="4" feature="extended_properties" success="1"></response> [4356] [Step Debug] <- feature_set -i 5 -n notify_ok -v 1 [4356] [Step Debug] -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" command="feature_set" transaction_id="5" feature="notify_ok" success="1"></response> [4356] [Step Debug] <- stdout -i 6 -c 1 [4356] [Step Debug] -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" command="stdout" transaction_id="6" success="1"></response> [4356] [Step Debug] <- status -i 7 [4356] [Step Debug] -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" command="status" transaction_id="7" status="starting" reason="ok"></response> [4356] [Step Debug] <- step_into -i 8 [4356] [Step Debug] -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" command="step_into" transaction_id="8" status="break" reason="ok"><xdebug:message filename="file://139.138.58.141/phpinfo.php" lineno="2"></xdebug:message></response> [4356] [Step Debug] <- eval -i 9 -- aXNzZXQoJF9TRVJWRVJbJ1BIUF9JREVfQ09ORklHJ10p [4356] [Step Debug] -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" command="eval" transaction_id="9"><property type="bool"><![CDATA[0]]></property></response> [4356] [Step Debug] <- eval -i 10 -- aXNzZXQoJF9TRVJWRVJbJ1NFUlZFUl9OQU1FJ10p [4356] [Step Debug] -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" command="eval" transaction_id="10"><property type="bool"><![CDATA[1]]></property></response> [4356] [Step Debug] <- eval -i 11 -- KHN0cmluZykoJF9TRVJWRVJbJ1NFUlZFUl9OQU1FJ10p [4356] [Step Debug] -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" command="eval" transaction_id="11"><property type="string" size="36" encoding="base64"><![CDATA[bmljb3BpZXRzY2guZGV2ZWxvcGVycy55ZWxsb3dmb3gubmV0]]></property></response> [4356] [Step Debug] <- eval -i 12 -- KHN0cmluZykoJF9TRVJWRVJbJ1NFUlZFUl9QT1JUJ10p [4356] [Step Debug] -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" command="eval" transaction_id="12"><property type="string" size="3" encoding="base64"><![CDATA[NDQz]]></property></response> [4356] [Step Debug] <- eval -i 13 -- KHN0cmluZykoJF9TRVJWRVJbJ1JFUVVFU1RfVVJJJ10p [4356] [Step Debug] -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" command="eval" transaction_id="13"><property type="string" size="20" encoding="base64"><![CDATA[L2hhdmFyaWUvcGhwaW5mby5waHA=]]></property></response> [4356] [Step Debug] <- breakpoint_set -i 14 -t line -f file:///139.138.58.141/phpinfo.php -n 8 [4356] [Step Debug] -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" command="breakpoint_set" transaction_id="14" id="43560001"></response> [4356] [Step Debug] <- stack_get -i 15 [4356] [Step Debug] -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" command="stack_get" transaction_id="15"><stack where="{main}" level="0" type="file" filename="file://139.138.58.141/phpinfo.php" lineno="2"></stack></response> [4356] [Step Debug] <- run -i 16 [4356] [Step Debug] -> <stream xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" type="stdout" encoding="base64"><![CDATA[WC1Qb3dlcmVkLUJ5OiBQSFAvNy40LjMw]]></stream> [4356] [Step Debug] -> <stream xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" type="stdout" encoding="base64"><![CDATA[DQo=]]></stream> [4356] [Step Debug] -> <stream xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" type="stdout" encoding="base64"><![CDATA[Q29udGVudC10eXBlOiB0ZXh0L2h0bWw7IGNoYXJzZXQ9VVRGLTg=]]></stream> [4356] [Step Debug] -> <stream xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" type="stdout" encoding="base64"><![CDATA[DQo=]]></stream> [4356] [Step Debug] -> <stream xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" type="stdout" encoding="base64"><![CDATA[DQo=]]></stream> [4356] [Step Debug] -> <stream xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" type="stdout" encoding="base64"><![CDATA[PCFET0NUWV...0bWw+]]></stream> [4356] [Step Debug] -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" command="run" transaction_id="16" status="stopping" reason="ok"></response> [4356] [Step Debug] <- detach -i 17 [4356] [Step Debug] -> <response xmlns="urn:debugger_protocol_v1" xmlns:xdebug="https://xdebug.org/dbgp/xdebug" command="detach" transaction_id="17" status="stopping" reason="ok"></response> [4356] Log closed at 2022-07-19 12:10:32.246517 log_7_4_30_own.txt (6,941 bytes)

Date Modified	Username	Field	Change
2021-04-11 18:52	Zobo	New Issue
2021-04-12 20:09	Zobo	Note Added: 0005825
2021-04-14 08:36	Zobo	Note Added: 0005826
2021-04-16 16:17	derick	Assigned To	=> derick
2021-04-16 16:17	derick	Status	new => feedback
2021-04-16 16:18	derick	Note Added: 0005851
2021-04-16 16:18	derick	Note Edited: 0005851
2021-05-14 15:31	derick	Target Version	=> 3.1dev
2021-05-21 13:20	derick	Relationship added	has duplicate 0001939
2021-08-07 10:10	derick	Note Added: 0005968
2021-08-27 17:38	AnrDaemon	Note Added: 0005995
2021-09-01 15:33	derick	Target Version	3.1dev => 3.2dev
2022-06-06 15:27	derick	Target Version	3.2dev => 3.3dev
2022-07-19 12:15	dwade3	Note Added: 0006348
2022-07-19 12:15	dwade3	File Added: log_7_4_30_own.txt