This function was originally introduced to fix an XSS attack in Netscape 4, which never affected any other browsers, or later versions of Netscape.
I'm willing to go out on a limb, and say that we've officially dropped security support for Netscape 4.
Props dmsnell, desrosj.
Fixes#33848.
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[38776] introduced a call to `get_term()` using only the term ID. This
causes problems in cases where shared terms have not been split. Since
we have the taxonomy available, there's no harm in passing it along to
`get_term()`.
Props dd32.
See #37291.
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Since 4.4, comment submission has been mostly abstracted into a function,
rather than being processed inline in wp-comments-post.php. This change
made it easier to write automated tests against the bulk of the comment
submission process. `wp_allow_comment()` remained untestable, however:
when a comment failed one of its checks (flooding, duplicates, etc),
`die()` or `wp_die()` would be called directly. This shortcoming posed
problems for any application attempting to use WP's comment verification
functions in an abstract way - from PHPUnit to the REST API.
The current changeset introduces a new parameter, `$avoid_die`, to the
`wp_new_comment()` stack. When set to `true`, `wp_new_comment()` and
`wp_allow_comment()` will return `WP_Error` objects when a comment check
fails. When set to `false` - the default, for backward compatibility -
a failed check will result in a `die()` or `wp_die()`, as appropriate.
Prior to this changeset, default comment flood checks took place in the
function `check_comment_flood_db()`, which was hooked to the
'check_comment_flood' action. This design allowed the default comment
flood routine to be bypassed or replaced using `remove_action()`.
In order to maintain backward compatibility with this usage, while
simultaneously converting the comment flood logic into something that
returns a value rather than calling `die()` directly,
`check_comment_flood_db()` has been changed into a wrapper function for
a call to `add_filter()`; this, in turn, adds the *actual* comment flood
check to a new filter, 'wp_is_comment_flood'. Note that direct calls
to `check_comment_flood_db()` will no longer do anything in isolation.
Props websupporter, rachelbaker.
Fixes#36901.
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Since [37573], `get_object_term_cache()` has expected term IDs to be
stored in the taxonomy relationship cache. The function would then
reach directly into the 'terms' cache to fetch the data corresponding
to a given term, before returning a `WP_Term` object. This caused
problems when, for one reason or another, term data was cached
inconsistently:
* If the 'terms' cache is empty for a given term ID, despite the earlier call to `_prime_term_caches()`, `get_term()` would return an error object.
* If the array of cached term IDs contains an invalid ID, `get_term()` would return an error object.
We avoid these errors by no longer touching the 'terms' cache directly,
but running term IDs through `get_term()` and allowing that function to
reference the cache (and database, as needed). If `get_term()` returns
an error object for any of the cached term IDs, `get_object_term_cache()`
will return that error object alone. This change ensures that upstream
functions, like `get_the_terms()`, return `WP_Error` objects in a
predictable fashion.
Props dd32, michalzuber.
Fixes#37291.
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On the Menus screen, the links to move menu items behave like buttons: they
perform an action so they should be real buttons to be correctly reported to
assistive technologies. Since they're logically grouped controls, they should
also be wrapped in a `<fieldset>` element for better semantics and accessibility.
Props Cheffheid.
Fixes#35578.
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Although unlikely, clashes in randomly generated strings could cause unexpected failures. In addition, most randomness is entirely unnecessary, is bad practice, and increases test time (however small it may be).
See #37371
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The position of this template within the hierarchy is of so little use that zero themes in the WordPress.org theme directory make use of it. It's second only to `index.php` in the hierarchy, meaning that any archive template such as `category.php` or `archive.php` will be chosen before it.
Fixes#38162
Props ryankienstra for initial patch
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If a plugin attempts to change the rewrite rules to early, other plugins may have their rules inadvertently discarded. Additionally, some function such as `url_to_post_id` cause a rewrite rule lookup that could cause this accidental flushing. This forces the flushing to only occur once `wp_loaded` has been fired.
Fixes#37892.
Props Chouby.
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* Removes special handling for `edit-tags.php` which is no longer required because of `term.php`. Related: [34202] and [36308].
* Sets `$referer` to `$_SERVER['REQUEST_URI']` because `wp_get_referer()` returns false if `$_SERVER['REQUEST_URI'] === $_REQUEST['_wp_http_referer']`.
* Sets `paged` always to `$pagenum` which is the value of `$wp_list_table->get_pagenum();`. This avoids an additional redirect when you delete an item which was previously on the last page.
Fixes#38194.
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This changes the global `$wp_taxonomies` to an array of `WP_Taxonomy ` objects. `WP_Taxonomy ` includes methods to handle rewrite rules and hooks.
Each taxonomy argument becomes a property of `WP_Taxonomy`. Introducing such a class makes further improvements in the future much more feasible.
Props boonebgorges for review.
Fixes#36224. See #36217.
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When editing a plugin file, show the correct plugin as being edited in the dropdown with the correct activation status.
Props aniketpant, dd32, DrewAPicture, jayarjo, MattyRob, mt8.biz, solarissmoke, swissspidy, WraithKenny.
Fixes#24122, #17552.
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Trashed posts cannot be accessed by site visitors and thus should not be visible on the front end. By marking menu items of trashed posts as invalid, they are excluded from the output.
Props solarissmoke, swissspidy.
Fixes#19038.
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