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Backport #19773

Our character detection algorithm can potentially incorrectly detect utf-8 as iso-8859-x
if there is a truncated character at the end of the partially read file.

This PR changes the detection algorithm to truncated utf8 characters at the end of the
buffer.

Fix #19743

Signed-off-by: Andrew Thornton [email protected]

…esenting utf-8 (go-gitea#19773)

Backport go-gitea#19773

Our character detection algorithm can potentially incorrectly detect utf-8 as iso-8859-x
if there is a truncated character at the end of the partially read file.

This PR changes the detection algorithm to truncated utf8 characters at the end of the
buffer.

Fix go-gitea#19743

Signed-off-by: Andrew Thornton <[email protected]>
@zeripath zeripath added this to the 1.16.9 milestone May 21, 2022
@GiteaBot GiteaBot added the lgtm/need 1 This PR needs approval from one additional maintainer to be merged. label May 21, 2022
@GiteaBot GiteaBot added lgtm/done This PR has enough approvals to get merged. There are no important open reservations anymore. and removed lgtm/need 1 This PR needs approval from one additional maintainer to be merged. labels May 21, 2022
@lunny lunny merged commit be99eb2 into go-gitea:release/v1.16 May 21, 2022
@zeripath zeripath deleted the backport-19773-v1.16 branch May 23, 2022 20:58
zeripath added a commit to zeripath/gitea that referenced this pull request Jun 20, 2022
## [1.16.9](https://github.com/go-gitea/gitea/releases/tag/1.16.9) - 2022-06-20

* BUGFIXES
  * Fix permission check for delete tag (go-gitea#19985) (go-gitea#20001)
  * Only log non ErrNotExist errors in git.GetNote  (go-gitea#19884) (go-gitea#19905)
  *  Use exact search instead of fuzzy search for branch filter dropdown (go-gitea#19885) (go-gitea#19893)
  * Set Setpgid on child git processes (go-gitea#19865) (go-gitea#19881)
  * Import git from alpine 3.16 repository as 2.30.4 is needed for `safe.directory = '*'` to work but alpine 3.13 has 2.30.3 (go-gitea#19876)
  * Ensure responses are context.ResponseWriters (go-gitea#19843) (go-gitea#19859)
  * Fix count bug (go-gitea#19850)
  * Fix raw endpoint PDF file headers (go-gitea#19825) (go-gitea#19826)
  * Make WIP prefixes case insensitive, e.g. allow `Draft` as a WIP prefix (go-gitea#19780) (go-gitea#19811)
  * Fix NotificationUnreadCount (go-gitea#19802)
  * Prevent NPE when cache service is disabled (go-gitea#19703) (go-gitea#19783)
  * Detect truncated utf-8 characters at the end of content as still representing utf-8 (go-gitea#19773) (go-gitea#19774)
  * Fix doctor pq: syntax error at or near "." quote user table name (go-gitea#19765) (go-gitea#19770)
  * Fix bug (go-gitea#19757)

Signed-off-by: Andrew Thornton <[email protected]>
@zeripath zeripath mentioned this pull request Jun 20, 2022
@go-gitea go-gitea locked and limited conversation to collaborators May 3, 2023
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4 participants