Class: ActionDispatch::ExceptionWrapper

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 51

attr_reader :backtrace_cleaner, :wrapped_causes, :exception_class_name, :exception

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 51

attr_reader :backtrace_cleaner, :wrapped_causes, :exception_class_name, :exception

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 76

def has_cause?
  @exception.cause
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 84

def has_corrections?
  @exception.respond_to?(:original_message) && @exception.respond_to?(:corrections)
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 202

def rescue_response?
  self.class.rescue_responses.key?(exception.class.name)
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 12

singleton_class.attr_accessor :rescue_responses, :rescue_templates, :wrapper_exceptions, :silent_exceptions

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 12

singleton_class.attr_accessor :rescue_responses, :rescue_templates, :wrapper_exceptions, :silent_exceptions

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 64

def routing_error?
  @exception.is_a?(ActionController::RoutingError)
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 12

singleton_class.attr_accessor :rescue_responses, :rescue_templates, :wrapper_exceptions, :silent_exceptions

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 68

def template_error?
  @exception.is_a?(ActionView::Template::Error)
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 51

attr_reader :backtrace_cleaner, :wrapped_causes, :exception_class_name, :exception

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 12

singleton_class.attr_accessor :rescue_responses, :rescue_templates, :wrapper_exceptions, :silent_exceptions

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 116

def annotated_source_code
  if exception.respond_to?(:annotated_source_code)
    exception.annotated_source_code
  else
    []
  end
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 138

def application_trace
  clean_backtrace(:silent)
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 260

def backtrace
  @backtrace ||= build_backtrace
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 264

def build_backtrace
  built_methods = {}

  ActionView::PathRegistry.all_resolvers.each do |resolver|
    resolver.built_templates.each do |template|
      built_methods[template.method_name] = template
    end
  end

  (@exception.backtrace_locations || []).map do |loc|
    if built_methods.key?(loc.base_label)
      thread_backtrace_location = if loc.respond_to?(:__getobj__)
        loc.__getobj__
      else
        loc
      end
      SourceMapLocation.new(thread_backtrace_location, built_methods[loc.base_label])
    else
      loc
    end
  end
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 287

def causes_for(exception)
  return enum_for(__method__, exception) unless block_given?

  yield exception while exception = exception.cause
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 297

def clean_backtrace(*args)
  if backtrace_cleaner
    backtrace_cleaner.clean(backtrace, *args)
  else
    backtrace
  end
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 92

def corrections
  @exception.corrections
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 236

def exception_id
  exception.object_id
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 232

def exception_inspect
  exception.inspect
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 224

def exception_name
  exception.cause.class.to_s
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 132

def exception_trace
  trace = application_trace
  trace = framework_trace if trace.empty? && !self.class.silent_exceptions.include?(@exception_class_name)
  trace
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 350

def extract_file_and_line_number(trace)
  [trace.path, trace.lineno]
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 305

def extract_source(trace)
  spot = trace.spot(@exception)

  if spot
    line = spot[:first_lineno]
    code = extract_source_fragment_lines(spot[:script_lines], line)

    if line == spot[:last_lineno]
      code[line] = [
        code[line][0, spot[:first_column]],
        code[line][spot[:first_column]...spot[:last_column]],
        code[line][spot[:last_column]..-1],
      ]
    end

    return {
      code: code,
      line_number: line
    }
  end

  file, line_number = extract_file_and_line_number(trace)

  {
    code: source_fragment(file, line_number),
    line_number: line_number
  }
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 334

def extract_source_fragment_lines(source_lines, line)
  start = [line - 3, 0].max
  lines = source_lines.drop(start).take(6)
  Hash[*(start + 1..(lines.count + start)).zip(lines).flatten]
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 80

def failures
  @exception.failures
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 96

def file_name
  @exception.file_name
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 142

def framework_trace
  clean_backtrace(:noise)
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 146

def full_trace
  clean_backtrace(:all)
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 100

def line_number
  @exception.line_number
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 228

def message
  exception.message
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 88

def original_message
  @exception.original_message
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 124

def rescue_template
  self.class.rescue_templates[@exception_class_name]
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 187

def show?(request)
  # We're treating `nil` as "unset", and we want the default setting to be `:all`.
  # This logic should be extracted to `env_config` and calculated once.
  config = request.get_header("action_dispatch.show_exceptions")

  case config
  when :none
    false
  when :rescuable
    rescue_response?
  else
    true
  end
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 206

def source_extracts
  backtrace.map do |trace|
    extract_source(trace).merge(trace: trace)
  end
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 340

def source_fragment(path, line)
  return unless Rails.respond_to?(:root) && Rails.root
  full_path = Rails.root.join(path)
  if File.file?(full_path)
    File.open(full_path, "r") do |file|
      extract_source_fragment_lines(file.each_line, line)
    end
  end
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 220

def source_to_show_id
  (traces[trace_to_show].first || {})[:id]
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 128

def status_code
  self.class.status_code_for_exception(unwrapped_exception.class.name)
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 72

def sub_template_message
  @exception.sub_template_message
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 212

def trace_to_show
  if traces["Application Trace"].empty? && rescue_template != "routing_error"
    "Full Trace"
  else
    "Application Trace"
  end
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 150

def traces
  application_trace_with_ids = []
  framework_trace_with_ids = []
  full_trace_with_ids = []
  application_traces = application_trace.map(&:to_s)

  full_trace = backtrace_cleaner&.clean_locations(backtrace, :all).presence || backtrace
  full_trace.each_with_index do |trace, idx|
    filtered_trace = backtrace_cleaner&.clean_frame(trace, :all) || trace

    trace_with_id = {
      exception_object_id: @exception.object_id,
      id: idx,
      trace: trace,
      filtered_trace: filtered_trace,
    }

    if application_traces.include?(filtered_trace.to_s)
      application_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" => application_trace_with_ids,
    "Framework Trace" => framework_trace_with_ids,
    "Full Trace" => full_trace_with_ids
  }
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 108

def unwrapped_exception
  if self.class.wrapper_exceptions.include?(@exception_class_name)
    @exception.cause
  else
    @exception
  end
end

# File 'actionpack/lib/action_dispatch/middleware/exception_wrapper.rb', line 293

def wrapped_causes_for(exception, backtrace_cleaner)
  causes_for(exception).map { |cause| self.class.new(backtrace_cleaner, cause) }
end