TYPO3 Core

Linkvalidator ignores external links in input fields. One example is "External url" page type and its "url" field: it is ignored during the check.

This is reproducible with any field that is filled by the TYPO3 link wizard and has prety standard configuration:

        'path' => array(
            'exclude' => 1,
            'label' => 'LLL:EXT:....',
            'config' => array(
                'type'     => 'input',
                'size'     => '48',
                'max'      => '255',
                'eval'     => 'required,trim',
                'wizards'  => array(
                    '_PADDING' => 2,
                    'link'     => array(
                        'type'         => 'popup',
                        'title'        => 'Link',
                        'icon'         => 'link_popup.gif',
                        'script'       => 'browse_links.php?mode=wizard',
                        'JSopenParams' => 'height=300,width=500,status=0,menubar=0,scrollbars=1'
                    )
                ),
                'softref'  => 'typolink,typolink_tag,images,email[subst],url'
            )
        ),

1. TYPO3 link wizard creates external links without scheme portion. TYPO3 softref parse makes such links of type "string", which linkvalidator does not recognize. To detect the type proper;y as "external", linkvalidator should preprocess 'url' softrefs and prepend the scheme.
2. Linkvalidator processes URLs only if there is a 'subst' entry in the result of the softparser. This will be true for some typolinks and for 'email[subst]' but not for 'url' declaration. Thus any external URL is ignored.

The problem is reproducible with linkvalidator in TYPO3 4.7 and TYPO3 6.2 beta 1.