module Roda::RodaPlugins::RelativePath::InstanceMethods

  1. lib/roda/plugins/relative_path.rb

Methods

Public Instance

  1. relative_path
  2. relative_prefix

Public Instance methods

relative_path(absolute_path)

Return a relative path for the absolute path based on the current path of the request by adding the appropriate prefix.

[show source] 
   # File lib/roda/plugins/relative_path.rb
37 def relative_path(absolute_path)
38   relative_prefix + absolute_path
39 end
relative_prefix()

Return a relative prefix to append to an absolute path to a relative path based on the current path of the request.

[show source] 
   # File lib/roda/plugins/relative_path.rb
43 def relative_prefix
44   return @_relative_prefix if @_relative_prefix
45   env = @_request.env
46   script_name = env["SCRIPT_NAME"]
47   path_info = env["PATH_INFO"]
48 
49   # Check path begins with slash.  All valid paths should, but in case this
50   # request is bad, just skip using a relative prefix.
51   case script_name.getbyte(0)
52   when nil # SCRIPT_NAME empty
53     unless path_info.getbyte(0) == 47 # PATH_INFO starts with /
54       return(@_relative_prefix = '')
55     end
56   when 47 # SCRIPT_NAME starts with /
57     # nothing
58   else
59     return(@_relative_prefix = '')
60   end
61 
62   slash_count = script_name.count('/') + path_info.count('/')
63   @_relative_prefix = if slash_count > 1
64     ("../" * (slash_count - 2)) << ".."
65   else
66     "."
67   end
68 end