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-rw-r--r--activesupport/lib/active_support/json/decoding.rb23
-rw-r--r--activesupport/test/json/decoding_test.rb4
2 files changed, 23 insertions, 4 deletions
diff --git a/activesupport/lib/active_support/json/decoding.rb b/activesupport/lib/active_support/json/decoding.rb
index 5eb8c0fd7d..ed64c3117b 100644
--- a/activesupport/lib/active_support/json/decoding.rb
+++ b/activesupport/lib/active_support/json/decoding.rb
@@ -43,14 +43,31 @@ module ActiveSupport
end
if marks.empty?
- json.gsub(/\\\//, '/')
+ json.gsub(/\\([\\\/]|u[[:xdigit:]]{4})/) do
+ ustr = $1
+ if ustr.starts_with?('u')
+ [ustr[1..-1].to_i(16)].pack("U")
+ elsif ustr == '\\'
+ '\\\\'
+ else
+ ustr
+ end
+ end
else
left_pos = [-1].push(*marks)
right_pos = marks << scanner.pos + scanner.rest_size
output = []
left_pos.each_with_index do |left, i|
- scanner.pos = left.succ
- output << scanner.peek(right_pos[i] - scanner.pos + 1)
+ output << json[left.succ..right_pos[i]].gsub(/\\([\\\/]|u[[:xdigit:]]{4})/) do
+ ustr = $1
+ if ustr.starts_with?('u')
+ [ustr[1..-1].to_i(16)].pack("U")
+ elsif ustr == '\\'
+ '\\\\'
+ else
+ ustr
+ end
+ end
end
output = output * " "
diff --git a/activesupport/test/json/decoding_test.rb b/activesupport/test/json/decoding_test.rb
index b88a00e584..c5816ea168 100644
--- a/activesupport/test/json/decoding_test.rb
+++ b/activesupport/test/json/decoding_test.rb
@@ -28,7 +28,9 @@ class TestJSONDecoding < Test::Unit::TestCase
%(null) => nil,
%(true) => true,
%(false) => false,
- %q("http:\/\/test.host\/posts\/1") => "http://test.host/posts/1"
+ %q("http:\/\/test.host\/posts\/1") => "http://test.host/posts/1",
+ %q("\u003cunicode\u0020escape\u003e") => "<unicode escape>",
+ %q("\\\\u0020skip double backslashes") => "\\u0020skip double backslashes"
}
TESTS.each do |json, expected|