#11343 #11478 In admin, url params may get url encoded more than once, fix backend url model

[adrian-martinez-interactiv4]

Description

In admin, url params may get url encoded more than once, when \Magento\Backend\Model\Url::getUrl() is called many times within the same request. This can mess up parameters like grid filters, and others.

Fixed Issues

1. Search term in admin grid column filter is replaced with unicode characters #11343: In admin, url params may get url encoded more than once
2. In admin, url params may get url encoded more than once #11478: Search term in admin grid column filter is replaced with unicode characters

Manual testing scenarios

1. As explained in In admin, url params may get url encoded more than once #11478

Contribution checklist

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds on Travis CI are green)

[adrian-martinez-interactiv4]

@vrann Needs update label has been added, but there is no comment or review, does this still need update?

[adrian-martinez-interactiv4]

@okorshenko @RomaKis fixed, tests passed

[adrian-martinez-interactiv4]

As agreed with @vkublytskyi and indirectly with @antonkril , following actions have been performed:

1. Deprecate getRouteUrl
2. Move code from getRouteUrl to some new private method of Magento\Framework\Url
3. In getRouteUrl return result of new private method
4. Replace usage of getRouteUrl to new private method inside Magento\Framework\Url
5. Replace usage of getRouteUrl with getUrl in all other places

For further info check PR #11480

[okorshenko]

see comment here #11480 (comment)