feat: filemanager presigned route

[mmalenic]

Closes #459

Changes

• Adds routes under /s3/presign and /s3/presign/{:id} to fetch presigned URLs for current objects only.
• responseContentDisposition can be used to set the content-disposition of the presigned GetObject request. The default value is inline, as this matches the HTTP content-disposition header.

[victorskl]

LGTM

[mmalenic]

Update

• Fixed a bug with parsing the HOST header, which was introduced with refactor(filemanager): API style #472. Thanks @williamputraintan.

  • I assumed that HOST was a valid URL, but it's actually just the host:port without the scheme.

• I've added a FILEMANAGER_API_TLS_LINKS option which controls whether links are returned as http or https.

  • Should this be more automatically derived? E.g. default http for filemanager-api-server, and default https for filemanager-api-lambda?

[williamputraintan]

While this is not merged, possible to add an env-var in the compose for the filemanager service? So the local API server could have some presigned URL instead of an unhandled error?

      - AWS_ACCESS_KEY_ID=${AWS_ACCESS_KEY_ID:-random_access_key_id}
      - AWS_SECRET_ACCESS_KEY=${AWS_SECRET_ACCESS_KEY:-random_secret_access_key}
      - AWS_DEFAULT_REGION=${AWS_DEFAULT_REGION:-ap-southeast-2}