Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

[Foundation] Don't leak exceptions in WrappedNSInputStream.Read. #20131

Conversation

rolfbjarne
Copy link
Member

We don't want to leak exceptions back to the calling native code in WrappedNSInputStream.Read, because that will likely crash the process.

Example stack trace:

ObjectDisposed_StreamClosed (System.ObjectDisposedException)
   at System.ThrowHelper.ThrowObjectDisposedException_StreamClosed(String) + 0x3c
   at System.IO.MemoryStream.Read(Byte[], Int32, Int32) + 0x124
   at System.Net.Http.MultipartContent.ContentReadStream.Read(Byte[], Int32, Int32) + 0x78
   at System.Net.Http.NSUrlSessionHandler.WrappedNSInputStream.Read(IntPtr buffer, UIntPtr len) + 0x58
   at MyApp!<BaseAddress>+0x7082f8

Instead return -1 from the Read method, which is documented as an error
condition, and then also return a custom NSError from the Error property -
which is also documented to be where the error is supposed to be surfaced.

Ref: https://developer.apple.com/documentation/foundation/nsinputstream/1411544-read

Ref: #20123.

We don't want to leak exceptions back to the calling native code in WrappedNSInputStream.Read, because that will likely crash the process.

Example stack trace:

    ObjectDisposed_StreamClosed (System.ObjectDisposedException)
       at System.ThrowHelper.ThrowObjectDisposedException_StreamClosed(String) + 0x3c
       at System.IO.MemoryStream.Read(Byte[], Int32, Int32) + 0x124
       at System.Net.Http.MultipartContent.ContentReadStream.Read(Byte[], Int32, Int32) + 0x78
       at System.Net.Http.NSUrlSessionHandler.WrappedNSInputStream.Read(IntPtr buffer, UIntPtr len) + 0x58
       at MyApp!<BaseAddress>+0x7082f8

Instead return -1 from the Read method, which is documented as an error
condition, and then also return a custom NSError from the Error property -
which is also documented to be where the error is supposed to be surfaced.

Ref: https://developer.apple.com/documentation/foundation/nsinputstream/1411544-read

Ref: xamarin#20123.
@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2

This comment has been minimized.

@vs-mobiletools-engineering-service2
Copy link
Collaborator

📚 [PR Build] Artifacts 📚

Packages generated

View packages

Pipeline on Agent
Hash: [PR build]

@vs-mobiletools-engineering-service2
Copy link
Collaborator

💻 [PR Build] Tests on macOS X64 - Mac Sonoma (14) passed 💻

All tests on macOS X64 - Mac Sonoma (14) passed.

Pipeline on Agent
Hash: [PR build]

@vs-mobiletools-engineering-service2
Copy link
Collaborator

💻 [PR Build] Tests on macOS M1 - Mac Ventura (13) passed 💻

All tests on macOS M1 - Mac Ventura (13) passed.

Pipeline on Agent
Hash: [PR build]

@vs-mobiletools-engineering-service2
Copy link
Collaborator

💻 [CI Build] Windows Integration Tests passed 💻

All Windows Integration Tests passed.

Pipeline on Agent
Hash: 4d87e78ff1d1d7492686edcb55b24cc88d7885d4 [PR build]

@vs-mobiletools-engineering-service2
Copy link
Collaborator

💻 [PR Build] Tests on macOS M1 - Mac Big Sur (11) passed 💻

All tests on macOS M1 - Mac Big Sur (11) passed.

Pipeline on Agent
Hash: [PR build]

@vs-mobiletools-engineering-service2
Copy link
Collaborator

💻 [PR Build] Tests on macOS M1 - Mac Monterey (12) passed 💻

All tests on macOS M1 - Mac Monterey (12) passed.

Pipeline on Agent
Hash: [PR build]

@vs-mobiletools-engineering-service2
Copy link
Collaborator

✅ API diff for current PR / commit

Legacy Xamarin (No breaking changes)
.NET (No breaking changes)

✅ API diff vs stable

Legacy Xamarin (No breaking changes)
.NET (No breaking changes)
Legacy Xamarin (stable) vs .NET

ℹ️ Generator diff

Generator Diff: vsdrops (html) vsdrops (raw diff) gist (raw diff) - Please review changes)

Pipeline on Agent
Hash: 4d87e78ff1d1d7492686edcb55b24cc88d7885d4 [PR build]

@vs-mobiletools-engineering-service2
Copy link
Collaborator

🚀 [CI Build] Test results 🚀

Test results

✅ All tests passed on VSTS: simulator tests.

🎉 All 170 tests passed 🎉

Tests counts

✅ cecil: All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (iOS): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (MacCatalyst): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (macOS): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (Multiple platforms): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (tvOS): All 1 tests passed. Html Report (VSDrops) Download
✅ framework: All 8 tests passed. Html Report (VSDrops) Download
✅ fsharp: All 7 tests passed. Html Report (VSDrops) Download
✅ generator: All 2 tests passed. Html Report (VSDrops) Download
✅ install-source: All 1 tests passed. Html Report (VSDrops) Download
✅ interdependent-binding-projects: All 7 tests passed. Html Report (VSDrops) Download
✅ introspection: All 8 tests passed. Html Report (VSDrops) Download
✅ linker: All 65 tests passed. Html Report (VSDrops) Download
✅ mac-binding-project: All 1 tests passed. Html Report (VSDrops) Download
✅ mmp: All 2 tests passed. Html Report (VSDrops) Download
✅ mononative: All 6 tests passed. Html Report (VSDrops) Download
✅ monotouch (iOS): All 11 tests passed. Html Report (VSDrops) Download
✅ monotouch (MacCatalyst): All 7 tests passed. Html Report (VSDrops) Download
✅ monotouch (macOS): All 8 tests passed. Html Report (VSDrops) Download
✅ monotouch (tvOS): All 11 tests passed. Html Report (VSDrops) Download
✅ monotouch (watchOS): All 4 tests passed. Html Report (VSDrops) Download
✅ msbuild: All 2 tests passed. Html Report (VSDrops) Download
✅ mtouch: All 1 tests passed. Html Report (VSDrops) Download
✅ xammac: All 3 tests passed. Html Report (VSDrops) Download
✅ xcframework: All 8 tests passed. Html Report (VSDrops) Download
✅ xtro: All 2 tests passed. Html Report (VSDrops) Download

Pipeline on Agent
Hash: 4d87e78ff1d1d7492686edcb55b24cc88d7885d4 [PR build]

@rolfbjarne rolfbjarne marked this pull request as ready for review February 20, 2024 15:49
@rolfbjarne rolfbjarne merged commit 79ac366 into xamarin:main Feb 21, 2024
95 checks passed
@rolfbjarne rolfbjarne deleted the nsurlsessionhandler-dont-leak-exceptions-in-nswrappedstream-read branch February 21, 2024 09:29
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.

None yet

4 participants