diff options
Diffstat (limited to 'activesupport')
| -rw-r--r-- | activesupport/CHANGELOG.md | 9 | ||||
| -rw-r--r-- | activesupport/lib/active_support/core_ext/string/output_safety.rb | 62 | ||||
| -rw-r--r-- | activesupport/lib/active_support/i18n_railtie.rb | 5 | ||||
| -rw-r--r-- | activesupport/test/number_helper_test.rb | 1 |
4 files changed, 65 insertions, 12 deletions
diff --git a/activesupport/CHANGELOG.md b/activesupport/CHANGELOG.md index b63c44fbcb..ea4aaff610 100644 --- a/activesupport/CHANGELOG.md +++ b/activesupport/CHANGELOG.md @@ -1,3 +1,8 @@ +* Ensure `config.i18n.enforce_available_locales` is set before any other + configuration option. + + *Yves Senn* + * Added `Date#all_week/month/quarter/year` for generating date ranges. *Dmitriy Meremyanin* @@ -366,6 +371,10 @@ *Yves Senn* +* Removed deprecated `ActiveSupport::JSON::Variable` with no replacement. + + *Toshinori Kajihara* + * Raise an error when multiple `included` blocks are defined for a Concern. The old behavior would silently discard previously defined blocks, running only the last one. diff --git a/activesupport/lib/active_support/core_ext/string/output_safety.rb b/activesupport/lib/active_support/core_ext/string/output_safety.rb index c21650bb83..1b2098fc84 100644 --- a/activesupport/lib/active_support/core_ext/string/output_safety.rb +++ b/activesupport/lib/active_support/core_ext/string/output_safety.rb @@ -4,9 +4,10 @@ require 'active_support/core_ext/kernel/singleton_class' class ERB module Util HTML_ESCAPE = { '&' => '&', '>' => '>', '<' => '<', '"' => '"', "'" => ''' } - JSON_ESCAPE = { '&' => '\u0026', '>' => '\u003E', '<' => '\u003C' } + JSON_ESCAPE = { '&' => '\u0026', '>' => '\u003e', '<' => '\u003c', "\u2028" => '\u2028', "\u2029" => '\u2029' } + HTML_ESCAPE_REGEXP = /[&"'><]/ HTML_ESCAPE_ONCE_REGEXP = /["><']|&(?!([a-zA-Z]+|(#\d+));)/ - JSON_ESCAPE_REGEXP = /[&"><]/ + JSON_ESCAPE_REGEXP = /[\u2028\u2029&><]/u # A utility method for escaping HTML tag characters. # This method is also aliased as <tt>h</tt>. @@ -21,7 +22,7 @@ class ERB if s.html_safe? s else - s.gsub(/[&"'><]/, HTML_ESCAPE).html_safe + s.gsub(HTML_ESCAPE_REGEXP, HTML_ESCAPE).html_safe end end @@ -48,17 +49,56 @@ class ERB module_function :html_escape_once - # A utility method for escaping HTML entities in JSON strings - # using \uXXXX JavaScript escape sequences for string literals: + # A utility method for escaping HTML entities in JSON strings. Specifically, the + # &, > and < characters are replaced with their equivalent unicode escaped form - + # \u0026, \u003e, and \u003c. The Unicode sequences \u2028 and \u2029 are also + # escaped as they are treated as newline characters in some JavaScript engines. + # These sequences have identical meaning as the original characters inside the + # context of a JSON string, so assuming the input is a valid and well-formed + # JSON value, the output will have equivalent meaning when parsed: # - # json_escape('is a > 0 & a < 10?') - # # => is a \u003E 0 \u0026 a \u003C 10? + # json = JSON.generate({ name: "</script><script>alert('PWNED!!!')</script>"}) + # # => "{\"name\":\"</script><script>alert('PWNED!!!')</script>\"}" # - # Note that after this operation is performed the output is not - # valid JSON. In particular double quotes are removed: + # json_escape(json) + # # => "{\"name\":\"\\u003C/script\\u003E\\u003Cscript\\u003Ealert('PWNED!!!')\\u003C/script\\u003E\"}" + # + # JSON.parse(json) == JSON.parse(json_escape(json)) + # # => true + # + # The intended use case for this method is to escape JSON strings before including + # them inside a script tag to avoid XSS vulnerability: + # + # <script> + # var currentUser = <%= json_escape current_user.to_json %>; + # </script> + # + # WARNING: this helper only works with valid JSON. Using this on non-JSON values + # will open up serious XSS vulnerabilities. For example, if you replace the + # +current_user.to_json+ in the example above with user input instead, the browser + # will happily eval() that string as JavaScript. + # + # The escaping performed in this method is identical to those performed in the + # Active Support JSON encoder when +ActiveSupport.escape_html_entities_in_json+ is + # set to true. Because this transformation is idempotent, this helper can be + # applied even if +ActiveSupport.escape_html_entities_in_json+ is already true. + # + # Therefore, when you are unsure if +ActiveSupport.escape_html_entities_in_json+ + # is enabled, or if you are unsure where your JSON string originated from, it + # is recommended that you always apply this helper (other libraries, such as the + # JSON gem, do not provide this kind of protection by default; also some gems + # might override +to_json+ to bypass Active Support's encoder). + # + # The output of this helper method is marked as HTML safe so that you can directly + # include it inside a <tt><script></tt> tag as shown above. + # + # However, it is NOT safe to use the output of this inside an HTML attribute, + # because quotation marks are not escaped. Doing so might break your page's layout. + # If you intend to use this inside an HTML attribute, you should use the + # +html_escape+ helper (or its +h+ alias) instead: + # + # <div data-user-info="<%= h current_user.to_json %>">...</div> # - # json_escape('{"name":"john","created_at":"2010-04-28T01:39:31Z","id":1}') - # # => {name:john,created_at:2010-04-28T01:39:31Z,id:1} def json_escape(s) result = s.to_s.gsub(JSON_ESCAPE_REGEXP, JSON_ESCAPE) s.html_safe? ? result.html_safe : result diff --git a/activesupport/lib/active_support/i18n_railtie.rb b/activesupport/lib/active_support/i18n_railtie.rb index 890dd9380b..dcdea70443 100644 --- a/activesupport/lib/active_support/i18n_railtie.rb +++ b/activesupport/lib/active_support/i18n_railtie.rb @@ -31,6 +31,11 @@ module I18n fallbacks = app.config.i18n.delete(:fallbacks) + if app.config.i18n.has_key?(:enforce_available_locales) + # this option needs to be set before `default_locale=` to work properly. + I18n.enforce_available_locales = app.config.i18n.delete(:enforce_available_locales) + end + app.config.i18n.each do |setting, value| case setting when :railties_load_path diff --git a/activesupport/test/number_helper_test.rb b/activesupport/test/number_helper_test.rb index 61ca556fcd..111db59b2b 100644 --- a/activesupport/test/number_helper_test.rb +++ b/activesupport/test/number_helper_test.rb @@ -102,7 +102,6 @@ module ActiveSupport assert_equal '12 345 678', number_helper.number_to_delimited(12345678, :delimiter => ' ') assert_equal '12,345,678-05', number_helper.number_to_delimited(12345678.05, :separator => '-') assert_equal '12.345.678,05', number_helper.number_to_delimited(12345678.05, :separator => ',', :delimiter => '.') - assert_equal '12.345.678,05', number_helper.number_to_delimited(12345678.05, :delimiter => '.', :separator => ',') end end |