70 lines
1.8 KiB
Ruby
70 lines
1.8 KiB
Ruby
# frozen_string_literal: true
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module SendsBlob
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extend ActiveSupport::Concern
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included do
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include BlobHelper
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include SendFileUpload
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end
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def send_blob(repository, blob, inline: true, allow_caching: false)
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if blob
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headers['X-Content-Type-Options'] = 'nosniff'
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return if cached_blob?(blob, allow_caching: allow_caching)
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if blob.stored_externally?
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send_lfs_object(blob, repository.project)
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else
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send_git_blob(repository, blob, inline: inline)
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end
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else
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render_404
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end
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end
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private
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def cached_blob?(blob, allow_caching: false)
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stale = stale?(strong_etag: blob.id)
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max_age =
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if @ref && @commit && @ref == @commit.id # rubocop:disable Gitlab/ModuleWithInstanceVariables
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# This is a link to a commit by its commit SHA. That means that the blob
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# is immutable. The only reason to invalidate the cache is if the commit
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# was deleted or if the user lost access to the repository.
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Blob::CACHE_TIME_IMMUTABLE
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else
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# A branch or tag points at this blob. That means that the expected blob
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# value may change over time.
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Blob::CACHE_TIME
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end
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# Because we are opinionated we set the cache headers ourselves.
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expires_in(max_age,
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public: allow_caching, must_revalidate: true, stale_if_error: 5.minutes,
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stale_while_revalidate: 1.minute, 's-maxage': 1.minute)
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!stale
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end
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def send_lfs_object(blob, project)
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lfs_object = find_lfs_object(blob)
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if lfs_object && lfs_object.project_allowed_access?(project)
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send_upload(lfs_object.file, attachment: blob.name)
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else
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render_404
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end
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end
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def find_lfs_object(blob)
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lfs_object = LfsObject.find_by_oid(blob.lfs_oid)
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if lfs_object && lfs_object.file.exists?
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lfs_object
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else
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nil
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end
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end
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end
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