Temporary directory permission issues

[Go2Engle]

Temporary directory permission issues

[crschnick]

Yes, it is sometimes necessary to create some shell scripts. That is done in /tmp by default as I assumed that users would have write access to that. Does your user not have any rights or just not for /tmp ?

How exactly does the connection chain look like here? Is it possible to create an elevated shell environment first, and create the ssh connection in that so that everything is done as root?

[Go2Engle]

Correct this user does not have permissions other then its home directory other then elevating with sudo. I just noticed even when trying to connect with a standard shell now I'm getting the below. maybe placing the scripts in a .xpipe folder within the user directory would be a better all rounder solution?

io.xpipe.core.process.ProcessOutputException: Process returned exit code 1:
-bash: line 13: /tmp/xpipe/exec/exec-762986757.sh: Permission denied
at io.xpipe.core.process.ProcessOutputException.of(ProcessOutputException.java:34)
at io.xpipe.ext.proc.a.a(SourceFile:280)
at io.xpipe.ext.proc.a.discardOrThrow(SourceFile:346)
at io.xpipe.core.process.CommandControl.execute(CommandControl.java:41)
at io.xpipe.app.util.ScriptHelper.createExecScript(ScriptHelper.java:117)
at io.xpipe.app.util.ScriptHelper.constructInitFile(ScriptHelper.java:76)
at io.xpipe.ext.procx.g.prepareIntermediateTerminalOpen(SourceFile:98)
at io.xpipe.ext.procx.g.prepareTerminalOpen(SourceFile:89)
at io.xpipe.core.store.ShellStore.prepareLaunchCommand(ShellStore.java:27)
at io.xpipe.ext.base.action.LaunchAction$Action.execute(LaunchAction.java:29)
at io.xpipe.app.comp.storage.store.StoreEntryWrapper.executeDefaultAction(StoreEntryWrapper.java:197)
at io.xpipe.app.comp.storage.store.StoreEntryComp.lambda$createSimple$1(StoreEntryComp.java:77)
at io.xpipe.app.util.ThreadHelper.lambda$runFailableAsync$0(ThreadHelper.java:18)
at java.lang.Thread.run(Thread.java:1589)

[crschnick]

Yes that would make sense, I just went for /tmp as these are indeed intended to be temporary files. I think a good solution would be a dynamic detection, i.e. check if we have permissions for /tmp/ and if not, go for something like ~/.xpipe/tmp. Where exactly the directory resides doesn't really matter in the end.

[Go2Engle]

yeah that sounds like a perfect solution!

[crschnick]

Can you try whether this build works for you: https://github.com/xpipe-io/xpipe_staging/releases/tag/1.3.2

It should fall back to a subdirectory in the user home in case it doesn't have all permissions for /tmp.

[Go2Engle]

still getting the below =[

io.xpipe.core.process.ProcessOutputException: Process returned exit code 1:
-bash: line 27: /tmp/xpipe/exec/askpass-1331980410.sh.1.txt: Permission denied
at io.xpipe.core.process.ProcessOutputException.of(ProcessOutputException.java:34)
at io.xpipe.ext.proc.a.a(SourceFile:280)
at io.xpipe.ext.proc.a.discardOrThrow(SourceFile:346)
at io.xpipe.core.process.CommandControl.execute(CommandControl.java:41)
at io.xpipe.ext.procx.dialect.c.prepareAskpassContent(SourceFile:691)
at io.xpipe.app.util.ScriptHelper.createAskPassScript(ScriptHelper.java:161)
at io.xpipe.app.util.ScriptHelper.createAskPassScript(ScriptHelper.java:139)
at io.xpipe.app.util.ScriptHelper.createAskPassScript(ScriptHelper.java:127)
at io.xpipe.ext.procx.util.a.a(SourceFile:45)
at io.xpipe.ext.procx.util.a.a(SourceFile:118)
at io.xpipe.ext.procx.g.prepareIntermediateTerminalOpen(SourceFile:107)
at io.xpipe.ext.procx.g.prepareTerminalOpen(SourceFile:89)
at io.xpipe.core.store.ShellStore.prepareLaunchCommand(ShellStore.java:27)
at io.xpipe.ext.base.action.LaunchAction$Action.execute(LaunchAction.java:29)
at io.xpipe.app.comp.storage.store.StoreEntryWrapper.executeDefaultAction(StoreEntryWrapper.java:197)
at io.xpipe.app.comp.storage.store.StoreEntryComp.lambda$createSimple$1(StoreEntryComp.java:77)
at io.xpipe.app.util.ThreadHelper.lambda$runFailableAsync$0(ThreadHelper.java:18)
at java.lang.Thread.run(Thread.java:1589)

[crschnick]

Hmm ... what is the exit code of test -r /tmp && test -w /tmp && test -x /tmp for your user? That is what this build is checking

[Go2Engle]

looks like exit code for that is 0. So I checked again and the user does have permissions to the /tmp folder(my bad there, I should have fully checked that 🤦‍♂️) but it looks like the files within the folder are owned by root? do you think that could be causing the issue?

[crschnick]

I see, I will just rewrite the entire tempory directory logic to be bullet-proof as there are also a few other issues with it.

[crschnick]

Alright, I updated the build at https://github.com/xpipe-io/xpipe_staging/releases/tag/1.3.2 to now be more robust with regards to temporary directory handling. So you can try that out

[Go2Engle]

We are golden now!

PS: If anyone else does have this issue you will first need to manually sudo rm -rf /tmp/xpipe to remove stuff that was previously created, or you will still have the previous errors.

[crschnick]

Your suggestion of putting the files into the user home directory actually makes more sense, so I switched the logic around in 1.3.2.. It will put the files into ~/.xpipe/temp by default and if by some weird configuration you don't have permissions for that directory, it will use /tmp.

(In case you downloaded the staging release, note that it is a incompatible version to the normal releases and won't get updates. So you would have to download and install a proper release again. I am in the process of completely separating both types of installation so in the future you can have staging and normal releases side by side.)

[Go2Engle]

Awesome ok sounds good! I'll do a manual re-install then!