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lib: fix regular expression to detect / and \ #40325

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lib: fix regular expression to detect / and \ #40325

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fasttime
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@fasttime fasttime commented Oct 5, 2021 •
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Allow importing from file URLs with encoded commas. Forbid encoded backslashes. Fixes #40305.

@nodejs-github-bot nodejs-github-bot added esm Issues and PRs related to the ECMAScript Modules implementation. needs-ci PRs that need a full CI run. labels Oct 5, 2021
@fasttime fasttime marked this pull request as ready for review October 5, 2021 05:43
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targos commented Oct 5, 2021

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@targos targos added the request-ci Add this label to start a Jenkins CI on a PR. label Oct 5, 2021
@github-actions github-actions bot removed the request-ci Add this label to start a Jenkins CI on a PR. label Oct 5, 2021
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CI: https://ci.nodejs.org/job/node-test-pull-request/40155/

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Many thanks, and apologies for the slip!

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CI: https://ci.nodejs.org/job/node-test-pull-request/40161/

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bmeck commented Oct 5, 2021

Since , is significant for data: we should add a test for that as well even if this codepath doesn't cover data: normally I could foresee a refactor accidentally mixing the 2.

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@bmeck this code path does apply to data URLs, in that data URLs that contain a percent encoded comma will no longer throw, even if that percent encoding is in the body of the data URL. On the other hand, percent encoded / and \\ in any position of a data URL, including the body, will always throw. One option here could be to separately special case data URLs in opting out of these validations for the body of the data URL. I think that should be a separate PR though.

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bmeck commented Oct 5, 2021

@guybedford my main concern is how:

import(`data:text/javascript;x="${encodeURIComponent(',')}",export default 123`);

is interpreted and ensuring it works, otherwise we could just leave the , in the regexp in this PR rather than removing it if we just want to fix the slashes. I'd prefer we have a test for the data: impact if we change its behavior.

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@bmeck I believe right now your example would fail across all versions, where this PR fixes that.

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Ah, I see data: URLs have an early exit higher up in the resolver so don't hit this path. We should codify that into the spec as well, will post a PR.

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@bmeck since data URLs definitely never hit this path at all, I don't think there's any test coverage to apply here, are you ok with landing as is to get this fix in? I am working on a PR to clarify the data URL distinction in the spec as well as some other encoding cases.

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bmeck commented Oct 5, 2021

@guybedford yea that is fine, though also note that Blob is up and coming

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CI: https://ci.nodejs.org/job/node-test-pull-request/40384/

This was referenced Oct 22, 2021
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aduh95 pushed a commit to aduh95/node that referenced this pull request Oct 22, 2021
@fasttime @aduh95
lib: fix regular expression to detect / and \
d134dd4 
PR-URL: nodejs#40325
Fixes: nodejs#40305
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Guy Bedford <guybedford@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Zeyu Yang <himself65@outlook.com>
aduh95 pushed a commit to aduh95/node that referenced this pull request Oct 22, 2021
@fasttime @aduh95
lib: fix regular expression to detect / and \
a33a1a3 
PR-URL: nodejs#40325
Fixes: nodejs#40305
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Guy Bedford <guybedford@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Zeyu Yang <himself65@outlook.com>
@github-actions github-actions bot mentioned this pull request Oct 23, 2021
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targos pushed a commit that referenced this pull request Oct 23, 2021
@fasttime @targos
lib: fix regular expression to detect / and \
81cd7f3 
Fixes #40305

PR-URL: #40325
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Guy Bedford <guybedford@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Zeyu Yang <himself65@outlook.com>
@github-actions github-actions bot mentioned this pull request Oct 24, 2021
Open
31 tasks
@targos targos mentioned this pull request Nov 8, 2021
Merged
BethGriggs pushed a commit that referenced this pull request Nov 23, 2021
@fasttime @BethGriggs
lib: fix regular expression to detect / and \
881dd7b 
Fixes #40305

PR-URL: #40325
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Guy Bedford <guybedford@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Zeyu Yang <himself65@outlook.com>
@BethGriggs BethGriggs mentioned this pull request Nov 26, 2021
Merged
1 task
richardlau pushed a commit that referenced this pull request Nov 26, 2021
@fasttime @richardlau
lib: fix regular expression to detect / and \
b5b66ef 
PR-URL: #40325
Backport-PR-URL: #40564
Fixes: #40305
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Guy Bedford <guybedford@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Zeyu Yang <himself65@outlook.com>
richardlau pushed a commit that referenced this pull request Nov 26, 2021
@fasttime @richardlau
lib: fix regular expression to detect / and \
8894bdd 
PR-URL: #40325
Backport-PR-URL: #40564
Fixes: #40305
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Guy Bedford <guybedford@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Zeyu Yang <himself65@outlook.com>
@richardlau richardlau mentioned this pull request Nov 26, 2021
Merged
BethGriggs added a commit that referenced this pull request Nov 30, 2021
@BethGriggs
2021-11-30, Version 16.13.1 'Gallium' (LTS)
88cfa36 
Notable changes:

- **deps**: upgrade npm to 8.1.2 (npm team)
  [#40643](#40643)
- **deps**: update c-ares to 1.18.1 (Richard Lau)
  [#40660](#40660)
- **doc**: add VoltrexMaster to collaborators (voltrexmaster)
  [#40566](#40566)
- **lib**: fix regular expression to detect \`/\` and \`\\\`
  (Francesco Trotta) [#40325](#40325)

PR-URL: #40974
BethGriggs added a commit that referenced this pull request Dec 1, 2021
@BethGriggs
2021-12-01, Version 16.13.1 'Gallium' (LTS)
12029ce 
Notable changes:

- **deps**: upgrade npm to 8.1.2 (npm team)
  [#40643](#40643)
- **deps**: update c-ares to 1.18.1 (Richard Lau)
  [#40660](#40660)
- **doc**: add VoltrexMaster to collaborators (voltrexmaster)
  [#40566](#40566)
- **lib**: fix regular expression to detect \`/\` and \`\\\`
  (Francesco Trotta) [#40325](#40325)

PR-URL: #40974
BethGriggs added a commit that referenced this pull request Dec 1, 2021
@BethGriggs
2021-12-01, Version 16.13.1 'Gallium' (LTS)
6f74010 
Notable changes:

- **deps**: upgrade npm to 8.1.2 (npm team)
  [#40643](#40643)
- **deps**: update c-ares to 1.18.1 (Richard Lau)
  [#40660](#40660)
- **doc**: add VoltrexMaster to collaborators (voltrexmaster)
  [#40566](#40566)
- **lib**: fix regular expression to detect \`/\` and \`\\\`
  (Francesco Trotta) [#40325](#40325)

PR-URL: #40974
richardlau pushed a commit that referenced this pull request Dec 14, 2021
@fasttime @richardlau
lib: fix regular expression to detect / and \
243b2fb 
PR-URL: #40325
Backport-PR-URL: #40565
Fixes: #40305
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Guy Bedford <guybedford@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Zeyu Yang <himself65@outlook.com>
@richardlau richardlau mentioned this pull request Dec 15, 2021
Merged
Linkgoron pushed a commit to Linkgoron/node that referenced this pull request Jan 31, 2022
@BethGriggs @Linkgoron
2021-12-01, Version 16.13.1 'Gallium' (LTS)
5fd35c5 
Notable changes:

- **deps**: upgrade npm to 8.1.2 (npm team)
  [nodejs#40643](nodejs#40643)
- **deps**: update c-ares to 1.18.1 (Richard Lau)
  [nodejs#40660](nodejs#40660)
- **doc**: add VoltrexMaster to collaborators (voltrexmaster)
  [nodejs#40566](nodejs#40566)
- **lib**: fix regular expression to detect \`/\` and \`\\\`
  (Francesco Trotta) [nodejs#40325](nodejs#40325)

PR-URL: nodejs#40974
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@jasnell jasnell jasnell approved these changes

@guybedford guybedford guybedford approved these changes

@targos targos targos approved these changes

@himself65 himself65 himself65 approved these changes

@aduh95 aduh95 aduh95 approved these changes

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Error importing ES module with an encoded comma in the URL
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@fasttime @targos @nodejs-github-bot @bmeck @guybedford @Ayase-252 @jasnell @himself65 @aduh95 @richardlau