* XML-RPC: Improve error messages for unprivileged users.
* External Libraries: Disable deserialization in Requests_Utility_FilteredIterator
* Embeds: Disable embeds on deactivated Multisite sites.
* Coding standards: Modify escaping functions to avoid potential false positives.
* XML-RPC: Return error message if attachment ID is incorrect.
* Upgrade/install: Improve logic check when determining installation status.
* Meta: Sanitize meta key before checking protection status.
* Themes: Ensure that only privileged users can set a background image when a theme is using the deprecated custom background page.
Brings the changes from [49380,49382-49388] to the 5.2 branch.
Props xknown, zieladam, peterwilsoncc, whyisjake, desrosj, dd32.
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- Embeds: Ensure that the title attribute is set correctly on embeds.
- Editor: Prevent HTML decoding on by setting the proper editor context.
- Formatting: Ensure that wp_validate_redirect() sanitizes a wider variety of characters.
- Themes: Ensure a broken theme name is returned properly.
- Administration: Add a new filter to extend set-screen-option.
Merges [47948-47951] to the 5.2 branch.
Props xknown, sstoqnov, vortfu, SergeyBiryukov, whyisjake.
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- adds `role="presentation"` to the edit comment table
- removes a few pointless `<fieldset>` elements
- adds a few missing `<label>` elements
- adds the CSS class `class="td-full"` to table rows spanning to multiple cells
- adds explicit `scope="row"` attribute to the table headers in `options-permalink.php`: this table is better communicated as data table
- uses consistent label association in the "Privacy Settings" page
- in the installation page "Set up your database connection": associates descriptions to their inout fields using `aria-describedby`
- improves the link to gravatar.com in the `user-edit.php` page
Props afercia.
Merges [45416] to the 5.2 branch.
See #46899.
Fixes#47390.
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Adds `role="presentation"` to the `<table>` elements used for layout purposes.
Ideally, HTML tables should be used for tabular data. When tables are used for layout purposes, it's important to remove any native semantics so that assistive technologies can correctly announce the table content in a linearized fashion.
Props greatislander, afercia.
Merges [45403] to the 5.2 branch.
See #46899.
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When adding a Custom Link and leaving the "Link Text" field empty, WordPress used to set a default fallback text: "Menu Item".
The changes in [36379] broke this behavior making the fallback text: `(Pending)`, with a leading space.
Pending major refactoring of the Menus page (which is going to use a block-based user interface) this change just restores the original behavior by adding the fallback text to the related AJAX response.
Props christophherr, Fencer04, thakkarhardik, backermann1978, audrasjb.
Merges [45727] to the 5.2 branch.
Fixes#38415.
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Introduces the faux primitive capability `view_site_health_checks` available to single site admins and multisite super-admin to view the site health page within the admin.
The capability is mapped to the `install_plugins` capability without being dependent on the file system being writable. This fixes a bug where the feature couldn't be used by sites unable to write to the file system or managed through version control.
The capability is granted on the `user_has_cap` filter.
Props birgire, Clorith, palmiak, peterwilsoncc, spacedmonkey.
Merges [45507] to the 5.2 branch.
Fixes#46957 for 5.2.2.
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`wp-admin/includes/update-core.php` runs in the context of the previous WordPress version. Any calls to newly introduced functions there need to be checked via `function_exists()`.
Reviewed by desrosj, earnjam, SergeyBiryukov.
Props dd32, imath.
Merges [45365] to the 5.2 branch.
Fixes#47323.
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The `sodium_compat` library can be very slow for certain operations on 32-bit architectures, which can lead to web server timeouts while attempting to verify an update. This adds a runtime speed check to skip signature verification on systems that would otherwise time out. Includes simple unit tests.
Merges [45345] to the 5.2 branch.
Props dd32, paragoninitiativeenterprises, tellyworth.
Fixes#47186.
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This change removes redundant CSS properties for different health check statuses in favor of utilizing the `.dashicons` class already in Core to define them more consistently. This also fixes the vertical alignment issues.
Merges [45309] to the 5.2 branch.
Props chetan200891, Clorith, desrosj.
Fixes#46940.
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When viewing Site Health for a multisite install, there are a few recommendations that are not appropriate and could have negative implications for other sites on the install if the administrator follows the advice provided.
For example, Site Health recommends that inactive plugins and themes for a site should be removed. On a single site install, this is a great recommendation. However, on a multisite install, inactive plugins and themes for one site should not be removed because they could be active for other sites on the network.
This change also disables the `test_wp_version_check_attached()` test for multisite. This test checks for the presence of the `wp_version_check()` function on the `wp_version_check` hook, which is not present for every site on multisite.
Reviewed by jeremyfelt and desrosj.
Props iandunn, Clorith, azaozz, jeremyfelt.
Fixes#47084.
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This fixes several bugs in the signature verification code:
Disables signature checks on certain incompatible PHP versions that cause math errors when opcache is enabled;
Prevents a spurious URL and subsequent error when downloading a zip file with query arguments;
Prevents errors triggered by third-party upgrade scripts as per #46615;
Disables signature tests for Plugins, Themes, and Translations, leaving only core updates.
At the 5.2 release the API servers will only provide signatures for core update packages, which is why messages are suppressed for plugins and other package types. Signatures for those other items will become available later.
Props dd32.
See #39309, #46615
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Currently, there are a number of scenarios where `is_block_editor()` (and `WP_Screen::is_block_editor`) would incorrectly indicate block editor support at different points of the loading process. Most notably, checking `is_block_editor` when hooking into the `current_screen` action will always result in `false`, even when the block editor is being loaded. This is because `is_block_editor` is not set to `true` until `edit-form-blocks.php` is included.
This change adds logic to `WP_Screen` to ensure the accuracy of `is_block_editor` on block editor pages earlier in the load process.
While edit screens will now be accurate 100% of the time from `current_screen` on, there are still a few edge cases where `is_block_editor` could contain an incorrect value when creating a new post.
Because a `WP_Post` object is a required parameter for the `replace_editor` filter and `use_block_editor_for_post()` function, `WP_Screen` will fall back to the value returned by `use_block_editor_for_post_type()` for the post being created. To eliminate these edge cases, the `use_block_editor_for_post_type` filter can be used to return the appropriate boolean value to indicate support.
Props Chouby, desrosj, aduth, johnbillion.
Fixes#46195.
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- Change `recurse_dirsize()` to accept an array of excluded paths.
- Change so we don't calculate the sizes of dirs in wp-content twice.
- Add the size in bytes to the "debug" into.
- Add a custom DOM event after the dir sizes request is done. Can be used by plugins to "daisy chain" more requests.
- Move "WordPress directory location" and "WordPress directory size" to the top in the "Directories and Sizes" section.
- Move "Theme directory location" to the "Active Theme" section.
- Fix labels capitalization.
Props xkon, afercia, Clorith, azaozz.
Fixes#46707.
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whyisjake
Sergey Biryukov
desrosj
Andrew Ozz
Andrea Fercia
Peter Wilson
tellyworth
Dominik Schilling
Adam Silverstein
John Blackbourn