[wp-trac] [WordPress Trac] #48022: Support "ugc" rel attribute value in comments

[WordPress Trac]

#48022: Support "ugc" rel attribute value in comments
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 Reporter:  audrasjb                             |       Owner:
                                                 |  SergeyBiryukov
     Type:  task (blessed)                       |      Status:  reopened
 Priority:  normal                               |   Milestone:  5.3
Component:  Comments                             |     Version:
 Severity:  normal                               |  Resolution:
 Keywords:  has-patch has-unit-tests has-dev-    |     Focuses:
  note needs-testing                             |
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Comment (by SergeyBiryukov):

 Replying to [comment:18 desrosj]:
 > On first glance, `make_clickable()` is only used for comment content in
 Core. However, I'm not sure how it is being used by plugins and themes in
 the wild.

 Thanks for the patch!

 Looking at [https://wpdirectory.net/search/01DQB013M048BX8GBWNQSZM4HW
 plugins] and [https://wpdirectory.net/search/01DQBTMHZKHS5T3YABWK8TH42H
 themes], there are 1292 and 216 matches, respectively, vs. 101 and 3
 matches for `wp_rel_nofollow()`, per results from comment:7.

 At a glance, not all of the `make_clickable()` matches need the
 `rel="ugc"` attribute. If the content in question is not user-generated,
 it might not be appropriate.

 What about just adding it for comments for now by checking if
 `comment_text` is current filter, and adding a `make_clickable_rel` filter
 to customize this behavior? [attachment:"48022.6.diff"] implements that.

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Ticket URL: <https://core.trac.wordpress.org/ticket/48022#comment:20>
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