3720: Refactor manifest parsing from API server to Ruby SDK.

[arvados.git] / services / api / app / models / locator.rb

diff --git a/services/api/app/models/locator.rb b/services/api/app/models/locator.rb
deleted file mode 100644 (file)
index 39d7da9..0000000
--- a/services/api/app/models/locator.rb
+++ /dev/null
@@ -1,84 +0,0 @@
-# A Locator is used to parse and manipulate Keep locator strings.
-#
-# Locators obey the following syntax:
-#
-#   locator      ::= address hint*
-#   address      ::= digest size-hint
-#   digest       ::= <32 hexadecimal digits>
-#   size-hint    ::= "+" [0-9]+
-#   hint         ::= "+" hint-type hint-content
-#   hint-type    ::= [A-Z]
-#   hint-content ::= [A-Za-z0-9@_-]+
-#
-# Individual hints may have their own required format:
-# 
-#   sign-hint      ::= "+A" <40 lowercase hex digits> "@" sign-timestamp
-#   sign-timestamp ::= <8 lowercase hex digits>
-
-class Locator
-  def initialize(hasharg, sizearg, hintarg)
-    @hash = hasharg
-    @size = sizearg
-    @hints = hintarg
-  end
-
-  # Locator.parse returns a Locator object parsed from the string tok.
-  # Returns nil if tok could not be parsed as a valid locator.
-  def self.parse(tok)
-    begin
-      Locator.parse!(tok)
-    rescue ArgumentError => e
-      nil
-    end
-  end
-
-  # Locator.parse! returns a Locator object parsed from the string tok,
-  # raising an ArgumentError if tok cannot be parsed.
-  def self.parse!(tok)
-    m = /^([[:xdigit:]]{32})(\+([[:digit:]]+))?(\+([[:upper:]][[:alnum:]+@_-]*))?$/.match(tok.strip)
-    unless m
-      raise ArgumentError.new "could not parse #{tok}"
-    end
-
-    tokhash, _, toksize, _, trailer = m[1..5]
-    tokhints = []
-    if trailer
-      trailer.split('+').each do |hint|
-        if hint =~ /^[[:upper:]][[:alnum:]@_-]+$/
-          tokhints.push(hint)
-        else
-          raise ArgumentError.new "unknown hint #{hint}"
-        end
-      end
-    end
-
-    Locator.new(tokhash, toksize, tokhints)
-  end
-
-  # Returns the signature hint supplied with this locator,
-  # or nil if the locator was not signed.
-  def signature
-    @hints.grep(/^A/).first
-  end
-
-  # Returns an unsigned Locator.
-  def without_signature
-    Locator.new(@hash, @size, @hints.reject { |o| o.start_with?("A") })
-  end
-
-  def hash
-    @hash
-  end
-
-  def size
-    @size
-  end
-
-  def hints
-    @hints
-  end
-
-  def to_s
-    [ @hash, @size, *@hints ].join('+')
-  end
-end