69 lines
1.9 KiB
Ruby
69 lines
1.9 KiB
Ruby
# frozen_string_literal: true
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# This class takes in input a Ci::Build object and an artifact path to read.
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# It downloads and extracts the artifacts archive, then returns the content
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# of the artifact, if found.
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module Gitlab
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module Ci
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class ArtifactFileReader
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Error = Class.new(StandardError)
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MAX_ARCHIVE_SIZE = 5.megabytes
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def initialize(job)
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@job = job
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raise ArgumentError, 'Job does not have artifacts' unless @job.artifacts?
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validate!
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end
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def read(path)
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return unless job.artifacts_metadata
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metadata_entry = job.artifacts_metadata_entry(path)
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if metadata_entry.total_size > MAX_ARCHIVE_SIZE
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raise Error, "Artifacts archive for job `#{job.name}` is too large: max #{max_archive_size_in_mb}"
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end
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read_zip_file!(path)
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end
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private
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attr_reader :job
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def validate!
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if job.job_artifacts_archive.size > MAX_ARCHIVE_SIZE
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raise Error, "Artifacts archive for job `#{job.name}` is too large: max #{max_archive_size_in_mb}"
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end
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unless job.artifacts_metadata?
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raise Error, "Job `#{job.name}` has missing artifacts metadata and cannot be extracted!"
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end
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end
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def read_zip_file!(file_path)
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job.artifacts_file.use_open_file do |file|
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zip_file = Zip::File.new(file, false, true)
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entry = zip_file.find_entry(file_path)
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unless entry
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raise Error, "Path `#{file_path}` does not exist inside the `#{job.name}` artifacts archive!"
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end
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if entry.name_is_directory?
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raise Error, "Path `#{file_path}` was expected to be a file but it was a directory!"
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end
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zip_file.read(entry)
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end
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end
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def max_archive_size_in_mb
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ActiveSupport::NumberHelper.number_to_human_size(MAX_ARCHIVE_SIZE)
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end
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end
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end
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end
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