# File lib/mechanize/chain/uri_resolver.rb, line 10 10: def handle(ctx, params) 11: raise ArgumentError.new('uri must be specified') unless params[:uri] 12: params[:uri] = params[:uri].dup if params[:uri].is_a?(URI) 13: uri = params[:uri] 14: referer = params[:referer] 15: unless uri.is_a?(URI) 16: uri = uri.to_s.strip.gsub(/[^#{0.chr}-#{126.chr}]/) { |match| 17: if RUBY_VERSION >= "1.9.0" 18: CGI.escape(match) 19: else 20: sprintf('%%%X', match.unpack($KCODE == 'UTF8' ? 'U' : 'c')[0]) 21: end 22: } 23: 24: escaped_uri = Util.html_unescape( 25: uri.split(/(?:%[0-9A-Fa-f]{2})+|#/).zip( 26: uri.scan(/(?:%[0-9A-Fa-f]{2})+|#/) 27: ).map { |x,y| 28: "#{URI.escape(x)}#{y}" 29: }.join('') 30: ) 31: 32: begin 33: uri = URI.parse(escaped_uri) 34: rescue 35: uri = URI.parse(URI.escape(escaped_uri)) 36: end 37: 38: end 39: uri = @scheme_handlers[ 40: uri.relative? ? 'relative' : uri.scheme.downcase 41: ].call(uri, params[:referer]) 42: 43: if params[:referer] && params[:referer].uri 44: if uri.path.length == 0 && uri.relative? 45: uri.path = params[:referer].uri.path 46: end 47: end 48: 49: uri.path = '/' if uri.path.length == 0 50: 51: if uri.relative? 52: raise 'need absolute URL' unless referer && referer.uri 53: base = nil 54: if referer.respond_to?(:bases) && referer.parser 55: base = referer.bases.last 56: end 57: 58: uri = ((base && base.uri && base.uri.absolute?) ? 59: base.uri : 60: referer.uri) + uri 61: uri = referer.uri + uri 62: # Strip initial "/.." bits from the path 63: uri.path.sub!(/^(\/\.\.)+(?=\/)/, '') 64: end 65: 66: unless ['http', 'https', 'file'].include?(uri.scheme.downcase) 67: raise "unsupported scheme: #{uri.scheme}" 68: end 69: params[:uri] = uri 70: 71: super 72: end
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