* 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 4.7 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 [47947-47951] to the 4.7 branch.
Props xknown, sstoqnov, vortfu, SergeyBiryukov, whyisjake.
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Since support for PDF previews were added in [38949], it's possible
that the generated image file could overwrite an existing image file
with the same name. This uses wp_unique_filename() to avoid this
issue and adds a '-pdf' identifier on the end of filenames.
Props gitlost, desrosj, mikeschroder, joemcgill.
Merges [40130] and [40131] to the 4.7 branch.
Fixes#39875. See #31050.
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In [38625], the functionality to search for attachments by filename was added via the `posts_clauses` filter and the `_filter_query_attachment_filenames()` function. This moves `_filter_query_attachment_filenames()` from `wp-admin/includes/post.php` to `wp-includes/post.php` so that it can be applied in the same manner in the REST API media endpoint.
Merge of [39598] to the 4.7 branch.
Props jblz, tyxla.
Fixes#39092.
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With [38951] the support for custom page templates has been extended to all post
types. By making the visible meta box titles real labels, accessibility improves
for all users and form fields have meaningful labels.
Fixes#38790.
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This adds a new filter, `fallback_intermediate_image_sizes`, which
can be used to modify the array of image sizes created for previewing
PDFs in the media library and checks for the existence of sizes before
processing any image representations of a PDF.
Fixes#38594.
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Due to the `clear_update_cache` parameter not being respected, update caches were being cleared incorrectly which prevented multiple plugins to be updated at the same time in background updates - failing with a `fs_unavailable` error message.
Fixes#38024
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Previously there was no way to remove the user locale setting again, even though that might be desirable.
This adds a new 'Site Default' option to the user-specific language setting by introducing a new `show_site_locale_default` argument to `wp_dropdown_languages()`.
Props ocean90.
See #29783.
Fixes#38632.
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This is a great goal for core, and is close, but it is not in shape to be shipped for 4.7 and there is not enough time left in the development cycle to alter and polish sufficiently. There are bugs, but more than that, there are more fundamental questions around the use of existing UI, general UX, and how findable themes are (not) on the .org side.
see #37661.
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This partially reverts [35738], which has shown to provide a bad user experience for users seeking to experiment with TwentySeventeen.
This will result in TwentySixteen being installed in addition to TwentySeventeen.
See #38551.
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Previously a user could remove a protected meta field by using their browser developer tools to alter the form field properties in the Custom Fields meta box, given that they know the ID of the protected meta field. This change prevents this by preventing any change to a protected meta field, including changing its key.
Props ajoah, johnbillion, peterwilsoncc
Fixes#38293
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A theme can opt-in for tailored starter content to apply to the customizer when previewing the theme on a fresh install, when `fresh_site` is at its initial `1` value. Starter content is staged in the customizer and does not go live unless the changes are published. Initial starter content is added to Twenty Seventeen.
* The `fresh_site` flag is cleared when a published post or page is saved, when widgets are modified, or when the customizer state is saved.
* Starter content is registered via `starter-content` theme support, where the argument is an array containing `widgets`, `posts`, `nav_menus`, `options`, and `theme_mods`. Posts/pages in starter content are created with the `auto-draft` status, re-using the page/post stubs feature added to nav menus and the static front page controls.
* A `get_theme_starter_content` filter allows for plugins to extend a theme's starter content.
* Starter content in themes can/should re-use existing starter content items in core by using named placeholders.
* Import theme starter content into customized state when fresh site.
* Prevent original_title differences from causing refreshes if title is present.
* Ensure nav menu item url is set according to object when previewing.
* Make sure initial saved state is false if there are dirty settings without an existing changeset.
* Ensure dirty settings are cleaned upon changeset publishing.
Props helen, westonruter, ocean90.
Fixes#38114, #38533.
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- adds hidden text to the pagination links
- slightly increases the links clickable area
- fixes a JS error when clicking on the current page number
- avoids to generate nested `<div>` elements at each click
Props xavortm, cwpnolen, afercia.
Fixes#35577.
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With the introduction of user-specific languages in [38705] it's necessary to be able to switch translations on the fly. For example emails should be sent in the language of the recipient and not the one of the current user.
This introduces a new `WP_Locale_Switcher` class which is used for switching locales and translations. It holds the stack of locales whenever `switch_to_locale( $locale )` is called. With `restore_previous_locale()` you can restore the previous locale. `restore_current_locale()` empties the stack and sets the locale back to the initial value.
`switch_to_locale()` is added to most of core's email functions, either with the value of `get_locale()` (site language) or `get_user_locale()` (user language with fallback to site language).
Props yoavf, tfrommen, swissspidy, pbearne, ocean90.
See #29783.
Fixes#26511.
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WordPress has supported custom page templates for over 12 years, allowing developers to create various layouts for specific pages.
While this feature is very helpful, it has always been limited to the 'page' post type and not was not available to other post types.
By opening up the page template functionality to all post types, we continue to improve the template hierarchy's flexibility.
In addition to the `Template Name` file header, the post types supported by a template can be specified using `Template Post Type: post, foo, bar`.
When at least one template exists for a post type, the 'Post Attributes' meta box will be displayed in the back end, without the need to add post type support for `'page-attributes'`. 'Post Attributes' can be customized per post type using the `'attributes'` label when registering a post type.
Props johnbillion, Mte90, dipesh.kakadiya, swissspidy.
Fixes#18375.
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When support for PDFs is available, on upload,
render 'Thumbnail', 'Medium', 'Large', and 'Full' sizes of
the first page, and save them in attachment meta.
Use these renders within Add Media, Media Gallery and List views,
Attachment Details, Post/Attachment Edit screens, and Attachment pages.
Support available by default via Imagick -> ImageMagick -> Ghostscript,
but can be provided by any `WP_Image_Editor` that supports PDFs.
Props adamsilverstein, azaozz, celloexpressions, desrosj, dglingren, ericlewis, ipstenu, joemcgill, joyously, markoheijnen, melchoyce, mikeschroder, tomauger.
Fixes#31050.
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whyisjake
Sergey Biryukov
Gary Pendergast
Peter Wilson
Dion Hulse
John Blackbourn
Aaron Campbell
Pascal Birchler
Jeremy Felt
Joe McGill
Dominik Schilling
Helen Hou-Sandí
Andrea Fercia
Drew Jaynes
Weston Ruter
Mike Schroder