76 lines
2.0 KiB
Ruby
76 lines
2.0 KiB
Ruby
require "hbc/checkable"
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class Hbc::UrlChecker
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attr_accessor :cask, :response_status, :headers
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include Hbc::Checkable
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def initialize(cask, fetcher = Hbc::Fetcher)
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@cask = cask
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@fetcher = fetcher
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@headers = {}
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end
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def summary_header
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"url check result for #{cask}"
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end
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def run
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_get_data_from_request
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return if errors?
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_check_response_status
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end
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HTTP_RESPONSES = [
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"HTTP/1.0 200 OK",
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"HTTP/1.1 200 OK",
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"HTTP/1.1 302 Found",
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].freeze
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OK_RESPONSES = {
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"http" => HTTP_RESPONSES,
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"https" => HTTP_RESPONSES,
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"ftp" => ["OK"],
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}.freeze
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def _check_response_status
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ok = OK_RESPONSES[cask.url.scheme]
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return if ok.include?(@response_status)
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add_error "unexpected http response, expecting #{ok.map(&:utf8_inspect).join(" or ")}, got #{@response_status.utf8_inspect}"
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end
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def _get_data_from_request
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response = @fetcher.head(cask.url)
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if response.empty?
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add_error "timeout while requesting #{cask.url}"
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return
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end
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response_lines = response.split("\n").map(&:chomp)
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case cask.url.scheme
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when "http", "https" then
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@response_status = response_lines.grep(%r{^HTTP}).last
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if @response_status.respond_to?(:strip)
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@response_status.strip!
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unless response_lines.index(@response_status).nil?
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http_headers = response_lines[(response_lines.index(@response_status) + 1)..-1]
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http_headers.each do |line|
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header_name, header_value = line.split(": ")
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@headers[header_name] = header_value
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end
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end
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end
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when "ftp" then
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@response_status = "OK"
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response_lines.each do |line|
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header_name, header_value = line.split(": ")
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@headers[header_name] = header_value
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end
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else
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add_error "unknown scheme for #{cask.url}"
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end
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end
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end
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