[PR #28017] Add file type validation to paste upload #31922

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opened 2026-02-21 20:50:24 -05:00 by yindo · 0 comments
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Original Pull Request: https://github.com/langgenius/dify/pull/28017

State: closed
Merged: Yes


Added checks to ensure pasted files match allowed types and uploader is enabled before proceeding. Displays an error notification if the file type is not supported.

Important

  1. Make sure you have read our contribution guidelines
  2. Ensure there is an associated issue and you have been assigned to it
  3. Use the correct syntax to link this PR: Fixes #27200 .

Summary

I fixed a bug that allowed pasting to succeed even when file uploads were disabled. While the original issue only described the problem with images, I found that pasting other file types was also possible. Therefore, I expanded the fix to cover all file types, not just images.

Screenshots

Before After
... ...

Checklist

  • This change requires a documentation update, included: Dify Document
  • I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!)
  • I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
  • I've updated the documentation accordingly.
  • I ran dev/reformat(backend) and cd web && npx lint-staged(frontend) to appease the lint gods
**Original Pull Request:** https://github.com/langgenius/dify/pull/28017 **State:** closed **Merged:** Yes --- Added checks to ensure pasted files match allowed types and uploader is enabled before proceeding. Displays an error notification if the file type is not supported. > [!IMPORTANT] > > 1. Make sure you have read our [contribution guidelines](https://github.com/langgenius/dify/blob/main/CONTRIBUTING.md) > 1. Ensure there is an associated issue and you have been assigned to it > 1. Use the correct syntax to link this PR: Fixes #27200 . ## Summary I fixed a bug that allowed pasting to succeed even when file uploads were disabled. While the original issue only described the problem with images, I found that pasting other file types was also possible. Therefore, I expanded the fix to cover all file types, not just images. ## Screenshots | Before | After | |--------|-------| | ... | ... | ## Checklist - [ ] This change requires a documentation update, included: [Dify Document](https://github.com/langgenius/dify-docs) - [x] I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!) - [x] I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change. - [x] I've updated the documentation accordingly. - [x] I ran `dev/reformat`(backend) and `cd web && npx lint-staged`(frontend) to appease the lint gods
yindo added the pull-request label 2026-02-21 20:50:24 -05:00
yindo closed this issue 2026-02-21 20:50:24 -05:00
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Reference: langgenius/dify#31922