This brings the name in line with user-facing language and similar names of existing related capabilities. Since the capability has not been part of any WordPress release, it can be renamed without any backward-compatibility implications.
Also missing props benhuberman for [43006].
Fixes#44457.
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Introduce an `object_subtype` argument to the args array for `register_meta()` which can be used to limit meta registration to a single subtype (e.g. a custom post type or taxonomy, vs all posts or taxonomies).
Introduce `register_post_meta()` and `register_term_meta()` wrapper methods for `register_meta` to provide a convenient interface for the common case of registering meta for a specific taxonomy or post type. These methods work the way plugin developers have often expected `register_meta` to function, and should be used in place of direct `register_meta` where possible.
Props flixos90, tharsheblows, spacedmonkey.
Fixes#38323.
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A user is required to have the `manage_privacy_options` capability in order to determine which page is set as the privacy policy (the `wp_page_for_privacy_policy`). Given that, it doesn't make sense to allow users without that capability to edit or delete the page.
A similar situation exists with the `page_for_posts` and `page_on_front` options, but Editors are allowed to edit those pages. The reason that this situation is different is because it is more likely that an administrator will want to restrict modifications to the privacy policy, than it is that they will want to allow modifications. Modifications to the policy often require specialized knowledge of local laws, and can have implications for compliance with those laws.
Props dlh, desrosj.
Fixes#44079.
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In many common Multisite use cases, the network administrator will want to set a network-wide privacy policy -- via the `privacy_policy_url` filter -- for consistency and convenience. When that's done, the Privacy Settings screen on individual sites becomes unnecessary, and may confuse administrators of those sites when they see that their changes don't have any effect on the policy link in the footer.
Since we can't programatically determine which behavior the network admins would like, the safest default setting is to restrict the ability to super admins, and let them delegate it to individual site owners via a plugin, if they'd like to.
Fixes#43935.
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Multisite networks have a variety of use cases, and in many of them single-site administrators are not trusted to take actions that affect the whole network, require making decisions about legal compliance, etc. By default, those actions should require super admin capabilities. Plugins can be used to override that behavior if a particular site's use case calls for it.
Props allendav, jeremyfelt, iandunn.
Fixes#43919.
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This new dashboard widget is shown on WordPress sites which are powered by a PHP version which WordPress considers outdated, in order to inform site owners about the resulting problems and to explain how to upgrade to a supported version. An education page for that purpose has been previously created that the widget links to. The link is translatable so that localized versions of the page can be referred to as they become available.
The nag follows the example of the Browse Happy dashboard widget and is only visible for administrators, or network administrators when using multisite. To determine whether it needs to be displayed, a new wordpress.org API introduced prior is called that handles the version logic in a centralized location.
Props flixos90, hedgefield, schlessera.
Fixes#41191.
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The meta capabilities `install_languages` and `update_languages` rely on the admin function `wp_can_install_language_pack()`. That function in turn relies on `request_filesystem_credentials()`, so it needs to be ensured that this function is available as well.
Fixes#42230.
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This introduces the following meta capabilities:
* `activate_plugin`
* `deactivate_plugin`
* `deactivate_plugins`
The singular `activate_plugin` and `deactivate_plugin` capabilities are used along with the corresponding plugin name when
determining whether or not a user can activate or deactivate an individual plugin.
The plural `deactivate_plugins` capability is used in place of the existing `activate_plugins` capability when determining
whether a user can deactivate plugins.
Each of these new meta capabilities map to the existing `activate_plugins` primitive capability, which means there is no
change in existing behaviour, but plugins can now filter the capabilities required to activate and deactivate individual
plugins.
Fixes#38652
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The new meta capabilities are called `install_languages` and `update_languages`. Prior to this change, there were no proper capability checks applied. Instead only the filesystem and related constants were checked, and for actual permissions a rather vague fallback was used where a user needed to have at least one of the other updating capabilities. In addition to being generally more verbose, the new capabilities make it possible for example to allow a user to update languages, but nothing else. By default they fall back to the original way of how they were handled.
Props johnbillion, flixos90.
Fixes#39677.
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Previously, checks like `current_user_can( 'edit_term_meta', $term_id )`
returned the proper value, but generated a PHP notice due to the fact
that `get_term( $term_id )` could, in certain instances, return
`WP_Error` objects.
Props caercam.
Fixes#40891.
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Prior to this change, a mix of `is_super_admin()` calls and `manage_network` capability checks was used to determine whether the current user could upgrade the network. With this changeset a dedicated capability is introduced that allows more granular handling.
Props dhanendran for the original patch.
Fixes#39205. See #37616.
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`setup_network` is a new meta capability that brings more granular control over the permissions to setup a multisite environment. In a non-multisite environment it falls back to `manage_options` while in a multisite it falls back to `manage_network_options`. The introduction of this capability furthermore allows replacing an `is_super_admin()` check.
Props ashokkumar24 for the original patch.
Fixes#39206. See #37616.
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Site administrators should not be able to remove themselves from a site. This moves the enforcement of this rule from `wp-admin/users.php` to `remove_user_from_blog()` via the `remove_user` capability, which furthermore allows us to get rid of two additional clauses and their `is_super_admin()` checks in `wp-admin/users.php`. A unit test for the new behavior has been added.
Fixes#39063. See #37616.
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Additionally, use these meta-caps in the REST API endpoints.
Previously, register_meta()'s auth_callback had no effect for non-post meta. This introduces `{add,edit,delete}_{comment,term,user}_meta` meta-caps to match the existing post meta capabilities. These are currently only used in the REST API.
Props tharsheblows, boonebgorges.
Fixes#38303, fixes#38412.
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* Custom CSS is associated with a given theme and is displayed in an inline `style` element at the `wp_head` hook after the `wp_print_styles` is called so that it overrides any enqueued stylesheets.
* A `wp_get_custom_css()` function is used for accessing the CSS associated with the current theme (or another theme) and a `wp_get_custom_css` filter for manipulating it.
* CSS is managed in customizer via a new "Additional CSS" section with a single `textarea` control.
* `WP_Customize_Section::$description_hidden` is introduced for hiding extended descriptions in customizer sections behind a help toggle as done with panels.
* CSS is stored in a `custom_css` post type with the theme (stylesheet) slug as the `post_name`.
* `WP_Customize_Custom_CSS_Setting` is introduced to handle validation of CSS, previewing, and persisting the CSS to the `custom_css` post type.
* The `custom_css` setting is tied to a new `unfiltered_css` capability which maps to `unfiltered_html` by default.
* Escaping the message in the notification template is removed to allow markup (`code` tags) to be rendered.
See https://make.wordpress.org/core/2016/10/11/feature-proposal-better-theme-customizations-via-custom-css-with-live-previews/
Props johnregan3, celloexpressions, folletto, westonruter.
Fixes#35395.
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This introduces the singular `edit_term`, `delete_term`, and `assign_term` meta capabilities for terms, and switches the base capability name for tags from `manage_categories` to `manage_post_tags` and the corresponding `edit_post_tags`, `delete_post_tags`, and `assign_post_tags`.
All of these capabilities ultimately map to `manage_categories` so by default there is no change in the behaviour of the capabilities for categories, tags, or custom taxonomies. The `map_meta_cap` filter and the `capabilities` argument when registering a taxonomy now allow for control over editing, deleting, and assigning individual terms, as well as a separation of capabilities for tags from those of categories.
Fixes#35614
Props johnjamesjacoby for feedback
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`register_meta()` has been altered to accept an array of arguments as the third parameter in order to support its usage beyond XML-RPC, notably in the REST API and other projects that may build on top of meta, such as a potential Fields API. Arguments are whitelisted to reserve the right for core to add more later.
New functions added to complement this expansion are:
* `registered_meta_key_exists()`
* `unregister_meta_key()`
* `get_registered_meta_keys()`
* `get_registered_metadata()`
* A "private" function for the aforementioned whitelisting.
There still need to be lots of tests written for previous and new behaviors, and many things are subject to change. Maybe things will explode. #yolo
props jeremyfelt, ericlewis, sc0ttkclark, helen, rmccue, ocean90, voldemortensen.
see #35658.
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Known functions, classes, and methods are now auto-linked in Code Reference pages following #meta1483.
Note: Hook references are still linked via inline `@see` tags due to the unlikelihood of reliably matching for known hooks based on a RegEx pattern.
See #32246.
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Moving these functions to `wp-includes/capabilities.php` allows plugins to access more than just `is_super_admin()` and `get_super_admin()` from the front end without including a file via `wp-admin/`. Add an `is_multisite()` check to prevent use of these on single site environments now that they have left `ms.php`..
Props johnjamesjacoby.
Fixes#21788.
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Multisite functions use the term "blog" to refer to what we now call a "site," e.g. `get_current_blog_id()`. These functions are here to stay because of our commitment to backwards compatibility. What we can do is set the documentation straight.
See #35417.
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Creates:
`class-wp-roles.php`
`class-wp-role.php`
`class-wp-user.php`
`capbilities-functions.php`
`capbilities.php` contains only top-level code. Class files only contains classes. Functions file only contains functions.
See #33413.
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