Class: Utopia::Middleware::ExceptionHandler
- Inherits:
-
Object
- Object
- Utopia::Middleware::ExceptionHandler
- Defined in:
- lib/utopia/middleware/redirector.rb
Instance Method Summary collapse
- #call(env) ⇒ Object
- #fatal_error(env, ex) ⇒ Object
-
#initialize(app, location) ⇒ ExceptionHandler
constructor
A new instance of ExceptionHandler.
- #redirect(env, ex) ⇒ Object
Constructor Details
#initialize(app, location) ⇒ ExceptionHandler
Returns a new instance of ExceptionHandler.
27 28 29 30 31 |
# File 'lib/utopia/middleware/redirector.rb', line 27 def initialize(app, location) @app = app @location = location end |
Instance Method Details
#call(env) ⇒ Object
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 |
# File 'lib/utopia/middleware/redirector.rb', line 52 def call(env) begin return @app.call(env) rescue Exception => ex log = ::Logger.new(env['rack.errors']) log.error "Exception #{ex.to_s.dump}!" ex.backtrace.each do |bt| log.error bt end if env['PATH_INFO'] == @location return fatal_error(env, ex) else # If redirection fails begin return redirect(env, ex) rescue return fatal_error(env, ex) end end end end |
#fatal_error(env, ex) ⇒ Object
33 34 35 36 37 38 39 40 41 42 43 44 45 46 |
# File 'lib/utopia/middleware/redirector.rb', line 33 def fatal_error(env, ex) body = StringIO.new body.puts "<!DOCTYPE html><html><head><title>Fatal Error</title></head><body>" body.puts "<h1>Fatal Error</h1>" body.puts "<p>While requesting resource #{env['PATH_INFO'].to_html}, a fatal error occurred.</p>" body.puts "<blockquote><strong>#{ex.class.name.to_html}</strong>: #{ex.to_s.to_html}</blockquote>" body.puts "<p>There is nothing more we can do to fix the problem at this point.</p>" body.puts "<p>We apologize for the inconvenience.</p>" body.puts "</body></html>" body.rewind return [400, {"Content-Type" => "text/html"}, body] end |
#redirect(env, ex) ⇒ Object
48 49 50 |
# File 'lib/utopia/middleware/redirector.rb', line 48 def redirect(env, ex) return @app.call(env.merge('PATH_INFO' => @location, 'REQUEST_METHOD' => 'GET')) end |