stream: fix end-of-stream for HTTP/2 by addaleax · Pull Request #24926 · nodejs/node
HTTP/2 streams call `.end()` on themselves from their `.destroy()` method, which might be queued (e.g. due to network congestion) and not processed before the stream itself is destroyed. In that case, the `_writableState.ended` property could be set before the stream emits its `'close'` event, and never actually emits the `'finished'` event, confusing the end-of-stream implementation so that it wouldn’t call its callback. This can be fixed by watching for the end events themselves using the existing `'finish'` and `'end'` listeners rather than relying on the `.ended` properties of the `_...State` objects. These properties still need to be checked to know whether stream closure was premature – My understanding is that ideally, streams should not emit `'close'` before `'end'` and/or `'finished'`, so this might be another bug, but changing this would require modifying tests and almost certainly be a breaking change. Fixes: nodejs#24456
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Dec 9, 2018Trott pushed a commit to Trott/io.js that referenced this pull request
Dec 11, 2018HTTP/2 streams call `.end()` on themselves from their `.destroy()` method, which might be queued (e.g. due to network congestion) and not processed before the stream itself is destroyed. In that case, the `_writableState.ended` property could be set before the stream emits its `'close'` event, and never actually emits the `'finished'` event, confusing the end-of-stream implementation so that it wouldn’t call its callback. This can be fixed by watching for the end events themselves using the existing `'finish'` and `'end'` listeners rather than relying on the `.ended` properties of the `_...State` objects. These properties still need to be checked to know whether stream closure was premature – My understanding is that ideally, streams should not emit `'close'` before `'end'` and/or `'finished'`, so this might be another bug, but changing this would require modifying tests and almost certainly be a breaking change. Fixes: nodejs#24456 PR-URL: nodejs#24926 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
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BethGriggs pushed a commit that referenced this pull request
Dec 17, 2018HTTP/2 streams call `.end()` on themselves from their `.destroy()` method, which might be queued (e.g. due to network congestion) and not processed before the stream itself is destroyed. In that case, the `_writableState.ended` property could be set before the stream emits its `'close'` event, and never actually emits the `'finished'` event, confusing the end-of-stream implementation so that it wouldn’t call its callback. This can be fixed by watching for the end events themselves using the existing `'finish'` and `'end'` listeners rather than relying on the `.ended` properties of the `_...State` objects. These properties still need to be checked to know whether stream closure was premature – My understanding is that ideally, streams should not emit `'close'` before `'end'` and/or `'finished'`, so this might be another bug, but changing this would require modifying tests and almost certainly be a breaking change. Fixes: #24456 PR-URL: #24926 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
refack pushed a commit to refack/node that referenced this pull request
Jan 14, 2019HTTP/2 streams call `.end()` on themselves from their `.destroy()` method, which might be queued (e.g. due to network congestion) and not processed before the stream itself is destroyed. In that case, the `_writableState.ended` property could be set before the stream emits its `'close'` event, and never actually emits the `'finished'` event, confusing the end-of-stream implementation so that it wouldn’t call its callback. This can be fixed by watching for the end events themselves using the existing `'finish'` and `'end'` listeners rather than relying on the `.ended` properties of the `_...State` objects. These properties still need to be checked to know whether stream closure was premature – My understanding is that ideally, streams should not emit `'close'` before `'end'` and/or `'finished'`, so this might be another bug, but changing this would require modifying tests and almost certainly be a breaking change. Fixes: nodejs#24456 PR-URL: nodejs#24926 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
BethGriggs pushed a commit that referenced this pull request
Feb 12, 2019HTTP/2 streams call `.end()` on themselves from their `.destroy()` method, which might be queued (e.g. due to network congestion) and not processed before the stream itself is destroyed. In that case, the `_writableState.ended` property could be set before the stream emits its `'close'` event, and never actually emits the `'finished'` event, confusing the end-of-stream implementation so that it wouldn’t call its callback. This can be fixed by watching for the end events themselves using the existing `'finish'` and `'end'` listeners rather than relying on the `.ended` properties of the `_...State` objects. These properties still need to be checked to know whether stream closure was premature – My understanding is that ideally, streams should not emit `'close'` before `'end'` and/or `'finished'`, so this might be another bug, but changing this would require modifying tests and almost certainly be a breaking change. Fixes: #24456 PR-URL: #24926 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
BethGriggs pushed a commit that referenced this pull request
Feb 20, 2019HTTP/2 streams call `.end()` on themselves from their `.destroy()` method, which might be queued (e.g. due to network congestion) and not processed before the stream itself is destroyed. In that case, the `_writableState.ended` property could be set before the stream emits its `'close'` event, and never actually emits the `'finished'` event, confusing the end-of-stream implementation so that it wouldn’t call its callback. This can be fixed by watching for the end events themselves using the existing `'finish'` and `'end'` listeners rather than relying on the `.ended` properties of the `_...State` objects. These properties still need to be checked to know whether stream closure was premature – My understanding is that ideally, streams should not emit `'close'` before `'end'` and/or `'finished'`, so this might be another bug, but changing this would require modifying tests and almost certainly be a breaking change. Fixes: #24456 PR-URL: #24926 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
rvagg pushed a commit that referenced this pull request
Feb 28, 2019HTTP/2 streams call `.end()` on themselves from their `.destroy()` method, which might be queued (e.g. due to network congestion) and not processed before the stream itself is destroyed. In that case, the `_writableState.ended` property could be set before the stream emits its `'close'` event, and never actually emits the `'finished'` event, confusing the end-of-stream implementation so that it wouldn’t call its callback. This can be fixed by watching for the end events themselves using the existing `'finish'` and `'end'` listeners rather than relying on the `.ended` properties of the `_...State` objects. These properties still need to be checked to know whether stream closure was premature – My understanding is that ideally, streams should not emit `'close'` before `'end'` and/or `'finished'`, so this might be another bug, but changing this would require modifying tests and almost certainly be a breaking change. Fixes: #24456 PR-URL: #24926 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
BethGriggs added a commit that referenced this pull request
Mar 4, 2019BethGriggs added a commit that referenced this pull request
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