René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Storage: Provide credential-free access to public-access buckets","articleBody":"Per the [GCS authentication doc](https://cloud.google.com/storage/docs/authentication):\r\n\r\n\u003e Objects are anonymously accessible if the `allUsers` group has `READ` permission.\r\n\r\nAdd support for such access to the storage client.  Two strategies seem possible:\r\n\r\n- Add a classmethod factory to the `Client` class which bypasses inferring credentials from the user environment.\r\n- Add a custom `AnonymousCredentials` singleton which can be passed to the `Client` constructor.\r\n\r\nWe don't need to enforce any limits on the access to buckets / objects retrieved from the \"anonymous\" client:  the back-end will return `UNAUTHORIZED`.\r\n\r\nSystem tests can use the `gcp-public-data-landsat` bucket, if desired (hopefully CI throttling won't be an issue).","author":{"url":"https://github.com/tseaver","@type":"Person","name":"tseaver"},"datePublished":"2017-10-30T18:23:34.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":9},"url":"https://github.com/4279/google-cloud-python/issues/4279"}