lib/open-uri.rb: Allow http to https redirection.

* lib/open-uri.rb: Allow http to https redirection.
  Note that https to http is still forbidden.
  [ruby-core:20485] [Feature #859] by Roman Shterenzon.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56085 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,9 @@
+Wed Sep  7 16:00:45 2016  Tanaka Akira  <akr@fsij.org>
+
+	* lib/open-uri.rb: Allow http to https redirection.
+	  Note that https to http is still forbidden.
+	  [ruby-core:20485] [Feature #859] by Roman Shterenzon.
+
 Wed Sep  7 14:56:59 2016  Kazuki Tsujimoto  <kazuki@callcc.net>
 
 	* lib/csv.rb (CSV::{Row,Table}#{each,delete_if}): returns an enumerator

lib/open-uri.rb

@@ -249,7 +249,7 @@ module OpenURI
     # (RFC 2109 4.3.1, RFC 2965 3.3, RFC 2616 15.1.3)
     # However this is ad hoc.  It should be extensible/configurable.
     uri1.scheme.downcase == uri2.scheme.downcase ||
-    (/\A(?:http|ftp)\z/i =~ uri1.scheme && /\A(?:http|ftp)\z/i =~ uri2.scheme)
+    (/\A(?:http|ftp)\z/i =~ uri1.scheme && /\A(?:https?|ftp)\z/i =~ uri2.scheme)
   end
 
   def OpenURI.open_http(buf, target, proxy, options) # :nodoc: