Fixes domain name duplication in url

When a bucket url like bucket.s3.amazonaws.com with bucket name bucket
is present in params passed into request_params method, it
should not dupplicate the subdomain.
current: bucket.bucket.s3.amazonaws.com
fix: bucket.s3.amazonaws.com

Fix test failure due to Hash#slice not present for ruby 2.3

lib/fog/aws/storage.rb

@@ -298,6 +298,8 @@ module Fog
                 host = params.fetch(:cname, bucket_name)
               elsif path_style
                 path = bucket_to_path bucket_name, path
+              elsif host.start_with?("#{bucket_name}.")
+                # no-op
               else
                 host = [bucket_name, host].join('.')
               end

tests/models/storage/directory_tests.rb

@@ -1,4 +1,117 @@
 Shindo.tests("Storage[:aws] | directory", ["aws"]) do
+  tests('Fog::Storage[:aws]', "#request_params") do
+    def slice(hash, *args)
+      hash.select { |k, _| args.include?(k) }
+    end
+
+    instance = Fog::Storage[:aws]
+    method = instance.method(:request_params)
+
+    params = {bucket_name: 'profile-uploads', host: 'profile-uploads.s3.us-west-2.amazonaws.com'}
+    tests("given #{params}, request_params[:host]").returns("profile-uploads.s3.us-west-2.amazonaws.com") do
+      method.call(params)[:host]
+    end
+
+    params = {bucket_name: 'profile-uploads.johnsmith.net', cname: 'profile-uploads.johnsmith.net', virtual_host: true}
+    tests("given #{params}, request_params[:host]").returns("profile-uploads.johnsmith.net") do
+      method.call(params)[:host]
+    end
+
+    params = {bucket_name: 'profile-uploads.johnsmith.net', cname: 'profile-uploads.johnsmith.net', virtual_host: false}
+    tests("given #{params}, request_params[:host], request_params[:path]").
+      returns({host: "s3.amazonaws.com", path: "/profile-uploads.johnsmith.net/"}) do
+      slice(method.call(params), :host, :path)
+    end
+
+    params = {bucket_name: 'profile-uploads.johnsmith.net', bucket_cname: 'profile-uploads.johnsmith.net'}
+    tests("given #{params}, request_params[:host]").returns("profile-uploads.johnsmith.net") do
+      method.call(params)[:host]
+    end
+
+    params = {bucket_name: 'profile-uploads'}
+    tests("given #{params}, request_params[:path], request_params[:host]").
+      returns({path: "/", host: "profile-uploads.s3.amazonaws.com"}) do
+        slice(method.call(params), :path, :host)
+      end
+
+    params = {bucket_name: 'profile-uploads', path_style: true}
+    tests("given #{params}, request_params[:path], request_params[:host]").
+      returns({path: "/profile-uploads/", host: "s3.amazonaws.com"}) do
+        slice(method.call(params), :path, :host)
+      end
+
+    params = {bucket_name: 'profile-uploads', path_style: false}
+    tests("given #{params}, request_params[:path], request_params[:host]").
+      returns({path: "/", host: "profile-uploads.s3.amazonaws.com"}) do
+        slice(method.call(params), :path, :host)
+      end
+
+    params = {scheme: 'https', bucket_name: 'profile.uploads', path_style: false}
+    tests("given #{params}, request_params[:path], request_params[:host]").
+      returns(path: "/profile.uploads/", host: "s3.amazonaws.com") do
+        slice(method.call(params), :path, :host)
+      end
+
+    params = {:headers=>{:"Content-Type"=>"application/json"}}
+    tests("given #{params}, request_params[:headers]").returns({:"Content-Type"=>"application/json"}) do
+      method.call(params)[:headers]
+    end
+
+    params = {headers: {}}
+    tests("given #{params}, request_params[:headers]").returns({}) do
+      method.call(params)[:headers]
+    end
+
+    params = {scheme: 'http'}
+    tests("given #{params}, request_params[:scheme]").returns('http') do
+      method.call(params)[:scheme]
+    end
+
+    params = {}
+    tests("given #{params}, request_params[:scheme]").returns('https') do
+      method.call(params)[:scheme]
+    end
+
+    params = {scheme: 'http', port: 8080}
+    tests("given #{params} (default scheme), request_params[:port]").returns(8080) do
+      method.call(params)[:port]
+    end
+
+    params = {scheme: 'https', port: 443}
+    tests("given #{params}, request_params[:port]").returns(nil) do
+      method.call(params)[:port]
+    end
+
+    params = {}
+    tests("given #{params}, request_params[:host]").returns("s3.amazonaws.com") do
+      method.call(params)[:host]
+    end
+
+    params = {region: 'us-east-1'}
+    tests("given #{params}, request_params[:host]").returns("s3.amazonaws.com") do
+      method.call(params)[:host]
+    end
+
+    params = {region: 'us-west-2'}
+    tests("given #{params}, request_params[:host]").returns("s3.us-west-2.amazonaws.com") do
+      method.call(params)[:host]
+    end
+
+    params= {region: 'us-east-1', host: 's3.us-west-2.amazonaws.com'}
+    tests("given #{params}, request_params[:host]").returns("s3.us-west-2.amazonaws.com") do
+      method.call(params)[:host]
+    end
+
+    params = {object_name: 'image.png'}
+    tests("given #{params}, request_params[:host]").returns("/image.png") do
+      method.call(params)[:path]
+    end
+
+    params = {object_name: 'image.png', path: '/images/image.png'}
+    tests("given #{params}, request_params[:host]").returns("/images/image.png") do
+      method.call(params)[:path]
+    end
+  end
 
   directory_attributes = {
     :key => uniq_id('fogdirectorytests')
@@ -85,7 +198,5 @@ Shindo.tests("Storage[:aws] | directory", ["aws"]) do
         @instance.versioning?
       end
     end
-
   end
-
 end

tests/requests/storage/bucket_tests.rb

@@ -158,7 +158,7 @@ Shindo.tests('Fog::Storage[:aws] | bucket requests', ["aws"]) do
       Fog::Storage[:aws].put_bucket_website(@aws_bucket_name, :IndexDocument => 'index.html')
     end
 
-    tests("#put_bucket_website('#{@aws_bucket_name}', :RedirectAllRequestsTo => 'redirect.example..com')").succeeds do
+    tests("#put_bucket_website('#{@aws_bucket_name}', :RedirectAllRequestsTo => 'redirect.example.com')").succeeds do
       Fog::Storage[:aws].put_bucket_website(@aws_bucket_name, :RedirectAllRequestsTo => 'redirect.example.com')
     end