57 lines
1.6 KiB
Ruby
57 lines
1.6 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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class RouteMap
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FormatError = Class.new(StandardError)
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def initialize(data)
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begin
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entries = YAML.safe_load(data)
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rescue StandardError
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raise FormatError, 'Route map is not valid YAML'
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end
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raise FormatError, 'Route map is not an array' unless entries.is_a?(Array)
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@map = entries.map { |entry| parse_entry(entry) }
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end
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def public_path_for_source_path(path)
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mapping = @map.find { |mapping| mapping[:source] === path }
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return unless mapping
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if mapping[:source].is_a?(String)
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path.sub(mapping[:source], mapping[:public])
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else
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mapping[:source].replace(path, mapping[:public])
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end
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end
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private
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def parse_entry(entry)
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raise FormatError, 'Route map entry is not a hash' unless entry.is_a?(Hash)
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raise FormatError, 'Route map entry does not have a source key' unless entry.key?('source')
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raise FormatError, 'Route map entry does not have a public key' unless entry.key?('public')
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source_pattern = entry['source']
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public_path = entry['public']
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if source_pattern.start_with?('/') && source_pattern.end_with?('/')
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source_pattern = source_pattern[1...-1].gsub('\/', '/')
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begin
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source_pattern = Gitlab::UntrustedRegexp.new('\A' + source_pattern + '\z')
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rescue RegexpError => e
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raise FormatError, "Route map entry source is not a valid regular expression: #{e}"
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end
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end
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{
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source: source_pattern,
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public: public_path
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}
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end
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end
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end
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