37 lines
No EOL
1.4 KiB
Ruby
37 lines
No EOL
1.4 KiB
Ruby
# License: AGPL-3.0-or-later WITH Web-Template-Output-Additional-Permission-3.0-or-later
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module ChunkedUploader
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class S3
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MINIMUMBUFFER_SIZE = 5.megabytes
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S3_BUCKET_NAME = Settings.aws.bucket_name
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# Upload a string to s3 using chunks instead of all as one string. This is useful reducing memory usage on huge files
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# @param [Enumerable<String>] chunk_enum an enumerable of strings.
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# @param [String] path the path to the object on your S3 bucket
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# @returns the url to your uploaded file
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def self.upload(path,chunk_enum, metadata={})
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s3 = AWS::S3.new
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bucket = s3.buckets[S3_BUCKET_NAME]
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object = bucket.objects[path]
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io = StringIO.new('', 'w')
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content_type = metadata[:content_type] ? metadata[:content_type] : nil
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content_disposition = metadata[:content_disposition] ? metadata[:content_disposition] : nil
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begin
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object.multipart_upload(:acl => :public_read, :content_type => content_type, content_disposition: content_disposition) do |upload|
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chunk_enum.each do |chunk|
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export_returned = io.write(chunk)
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if (io.size >= MINIMUMBUFFER_SIZE)
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upload.add_part(io.string)
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io.reopen('')
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end
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end
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upload.add_part(io.string)
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end
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object.public_url.to_s
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rescue => e
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io.close
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raise e
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end
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end
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end
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end |