Move cookies.txt parser and serializer from HTTP::CookieJar to HTTP::Cookie.

Fix a bug where anything after '#' in cookies.txt are removed.

lib/http/cookie.rb

@@ -15,6 +15,8 @@ class HTTP::Cookie
     secure
     expires     created_at  accessed_at
   ]
+  True  = "TRUE"
+  False = "FALSE"
 
   # In Ruby < 1.9.3 URI() does not accept an URI object.
   if RUBY_VERSION < "1.9.3"
@@ -226,6 +228,35 @@ class HTTP::Cookie
         }
       }
     end
+
+    # Parses a line from cookies.txt and returns a cookie object if
+    # the line represents a cookie record or returns nil otherwise.
+    def parse_cookiestxt_line(line)
+      return nil if line.match(/^#/)
+
+      domain,
+      s_for_domain,	# Whether this cookie is for domain
+      path,		# Path for which the cookie is relevant
+      s_secure,		# Requires a secure connection
+      s_expires,	# Time the cookie expires (Unix epoch time)
+      name, value = line.split("\t")
+      return nil if value.nil?
+
+      value.chomp!
+
+      if (expires_seconds = s_expires.to_i).nonzero?
+        expires = Time.at(expires_seconds)
+        return nil if expires < Time.now
+      end
+
+      HTTP::Cookie.new(name, value,
+        :domain => domain,
+        :for_domain => s_for_domain == True,
+        :path => path,
+        :secure => s_secure == True,
+        :expires => expires,
+        :version => 0)
+    end
   end
 
   # Sets the domain attribute.  A leading dot in +domain+ implies
@@ -317,6 +348,19 @@ class HTTP::Cookie
   end
   include Comparable
 
+  # Serializes the cookie into a cookies.txt line.
+  def to_cookiestxt_line(linefeed = "\n")
+    [
+      @domain,
+      @for_domain ? True : False,
+      @path,
+      @secure ? True : False,
+      @expires.to_i.to_s,
+      @name,
+      @value
+    ].join("\t") << linefeed
+  end
+
   # YAML serialization helper for Syck.
   def to_yaml_properties
     PERSISTENT_PROPERTIES.map { |name| "@#{name}" }

lib/http/cookie_jar.rb

@@ -152,25 +152,7 @@ class HTTP::CookieJar
     now = Time.now
 
     io.each_line do |line|
-      line.chomp!
-      line.gsub!(/#.+/, '')
-      fields = line.split("\t")
-
-      next if fields.length != 7
-
-      expires_seconds = fields[4].to_i
-      expires = (expires_seconds == 0) ? nil : Time.at(expires_seconds)
-      next if expires and (expires < now)
-
-      c = HTTP::Cookie.new(fields[5], fields[6])
-      c.domain = fields[0]
-      c.for_domain = (fields[1] == "TRUE") # Whether this cookie is for domain
-      c.path = fields[2]               # Path for which the cookie is relevant
-      c.secure = (fields[3] == "TRUE") # Requires a secure connection
-      c.expires = expires             # Time the cookie expires.
-      c.version = 0                   # Conforms to Netscape cookie spec.
-
-      add(c)
+      c = HTTP::Cookie.parse_cookiestxt_line(line) and add(c)
     end
 
     @jar
@@ -179,15 +161,7 @@ class HTTP::CookieJar
   # Write cookies to Mozilla cookies.txt-style IO stream
   def dump_cookiestxt(io)
     to_a.each do |cookie|
-      io.puts([
-        cookie.domain,
-        cookie.for_domain? ? "TRUE" : "FALSE",
-        cookie.path,
-        cookie.secure ? "TRUE" : "FALSE",
-        cookie.expires.to_i.to_s,
-        cookie.name,
-        cookie.value
-      ].join("\t"))
+      io.print cookie.to_cookiestxt_line
     end
   end