[wp-trac] [WordPress Trac] #27364: Attachments cannot be imported if hosted locally

[WordPress Trac]

#27364: Attachments cannot be imported if hosted locally
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 Reporter:  markjaquith   |       Owner:
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Import        |     Version:
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:
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Comment (by jesin):

 The check for external URLs when hosted locally happens in the
 `wp_http_validate_url()` function.

 This function also returns `false` for the following reasons

 * URL is not of scheme http or https
 * If the URL contains a HTTP username or password in it (eg.
 http://user:pass@example.com/)
 * URL is external and has a port number which is not 80, 443 or 8080
 * URL is same as home URL but its port number neither matches the previous
 condition nor the home URL's port (eg. home URL - http://example.com:9000
 and requested URL is http://example.com:9001)

 So this function has to be modified to handle errors with WP_Error.

 This function applies the filter `http_request_host_is_external` when
 doing the external URL on a local setup check which can be set to `true`
 in the importer plugin to import external attachments.

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Ticket URL: <https://core.trac.wordpress.org/ticket/27364#comment:3>
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