[wp-trac] [WordPress Trac] #60540: Plugin dependencies: guard against unexpected responses to the `plugin_information` API endpoint

[WordPress Trac]

#60540: Plugin dependencies: guard against unexpected responses to the
`plugin_information` API endpoint
--------------------------+-----------------------------
 Reporter:  pbiron        |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Plugins       |    Version:  trunk
 Severity:  normal        |   Keywords:
  Focuses:                |
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 `WP_Plugin_Dependencies::get_dependency_api_data()` calls the
 `plugin_information` endpoint of the Plugins API.

 The existing code in 6.5 Beta 1 assumes that all responses that are not
 `WP_Error` instances are produced by the .org API.  However, extenders are
 able to filter the responses and some premium plugins do that to provide
 info about the premium plugins.  However, some of those extenders may
 return responses to that endpoint that do not contain properties that the
 Plugin Dependencies codebase relies on.

 Thus, rather than just checking whether the repsonse is a `WP_Error`, we
 need to check that all the properties in the response that are used are
 actually present in said response.

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Ticket URL: <https://core.trac.wordpress.org/ticket/60540>
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