/usr/lib/ruby/vendor_ruby/action_dispatch/middleware/exception_wrapper.rb is in ruby-actionpack 2:4.2.10-0ubuntu4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 | require 'action_controller/metal/exceptions'
require 'active_support/core_ext/module/attribute_accessors'
module ActionDispatch
class ExceptionWrapper
cattr_accessor :rescue_responses
@@rescue_responses = Hash.new(:internal_server_error)
@@rescue_responses.merge!(
'ActionController::RoutingError' => :not_found,
'AbstractController::ActionNotFound' => :not_found,
'ActionController::MethodNotAllowed' => :method_not_allowed,
'ActionController::UnknownHttpMethod' => :method_not_allowed,
'ActionController::NotImplemented' => :not_implemented,
'ActionController::UnknownFormat' => :not_acceptable,
'ActionController::InvalidAuthenticityToken' => :unprocessable_entity,
'ActionController::InvalidCrossOriginRequest' => :unprocessable_entity,
'ActionDispatch::ParamsParser::ParseError' => :bad_request,
'ActionController::BadRequest' => :bad_request,
'ActionController::ParameterMissing' => :bad_request
)
cattr_accessor :rescue_templates
@@rescue_templates = Hash.new('diagnostics')
@@rescue_templates.merge!(
'ActionView::MissingTemplate' => 'missing_template',
'ActionController::RoutingError' => 'routing_error',
'AbstractController::ActionNotFound' => 'unknown_action',
'ActionView::Template::Error' => 'template_error'
)
attr_reader :env, :exception, :line_number, :file
def initialize(env, exception)
@env = env
@exception = original_exception(exception)
expand_backtrace if exception.is_a?(SyntaxError) || exception.try(:original_exception).try(:is_a?, SyntaxError)
end
def rescue_template
@@rescue_templates[@exception.class.name]
end
def status_code
self.class.status_code_for_exception(@exception.class.name)
end
def application_trace
clean_backtrace(:silent)
end
def framework_trace
clean_backtrace(:noise)
end
def full_trace
clean_backtrace(:all)
end
def traces
appplication_trace_with_ids = []
framework_trace_with_ids = []
full_trace_with_ids = []
full_trace.each_with_index do |trace, idx|
trace_with_id = { id: idx, trace: trace }
if application_trace.include?(trace)
appplication_trace_with_ids << trace_with_id
else
framework_trace_with_ids << trace_with_id
end
full_trace_with_ids << trace_with_id
end
{
"Application Trace" => appplication_trace_with_ids,
"Framework Trace" => framework_trace_with_ids,
"Full Trace" => full_trace_with_ids
}
end
def self.status_code_for_exception(class_name)
Rack::Utils.status_code(@@rescue_responses[class_name])
end
def source_extracts
backtrace.map do |trace|
file, line = trace.split(":")
line_number = line.to_i
{
code: source_fragment(file, line_number),
line_number: line_number
}
end
end
private
def backtrace
Array(@exception.backtrace)
end
def original_exception(exception)
if registered_original_exception?(exception)
exception.original_exception
else
exception
end
end
def registered_original_exception?(exception)
exception.respond_to?(:original_exception) && @@rescue_responses.has_key?(exception.original_exception.class.name)
end
def clean_backtrace(*args)
if backtrace_cleaner
backtrace_cleaner.clean(backtrace, *args)
else
backtrace
end
end
def backtrace_cleaner
@backtrace_cleaner ||= @env['action_dispatch.backtrace_cleaner']
end
def source_fragment(path, line)
return unless Rails.respond_to?(:root) && Rails.root
full_path = Rails.root.join(path)
if File.exist?(full_path)
File.open(full_path, "r") do |file|
start = [line - 3, 0].max
lines = file.each_line.drop(start).take(6)
Hash[*(start+1..(lines.count+start)).zip(lines).flatten]
end
end
end
def expand_backtrace
@exception.backtrace.unshift(
@exception.to_s.split("\n")
).flatten!
end
end
end
|