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# frozen_string_literal: true
# Searches and reads files present on each GitLab project repository
module Gitlab
module Template
module Finders
class RepoTemplateFinder < BaseTemplateFinder
# Raised when file is not found
FileNotFoundError = Class.new(StandardError)
def initialize(project, base_dir, extension, categories = {})
@categories = categories
@extension = extension
@repository = project.repository
@commit = @repository.head_commit if @repository.exists?
super(base_dir)
end
def read(path)
blob = @repository.blob_at(@commit.id, path) if @commit
raise FileNotFoundError if blob.nil?
blob.data
end
def find(key)
file_name = "#{key}#{@extension}"
# The key is untrusted input, so ensure we can't be directed outside
# of base_dir inside the repository
Gitlab::Utils.check_path_traversal!(file_name)
directory = select_directory(file_name)
raise FileNotFoundError if directory.nil?
File.join(category_directory(directory), file_name)
end
def list_files_for(dir)
return [] unless @commit
dir = "#{dir}/" unless dir.end_with?('/')
entries = @repository.tree(:head, dir).entries
paths = entries.map(&:path)
paths.select { |f| f =~ self.class.filter_regex(@extension) }
end
private
def select_directory(file_name)
return [] unless @commit
# Insert root as directory
directories = ["", *@categories.keys]
directories.find do |category|
path = File.join(category_directory(category), file_name)
@repository.blob_at(@commit.id, path)
end
end
end
end
end
end
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