ns_url_protocol_test.rb

#!/usr/bin/env macruby

#   % gdb macruby ns_url_protocol_test.rb
#   
#   (gdb) run ns_url_protocol_test.rb http://www.google.com/
#   Starting program: /usr/local/bin/macruby ns_url_protocol_test.rb http://www.google.com/
#   
#   received 4900 bytes
#   
#   Program exited normally.
#   
#   (gdb) run ns_url_protocol_test.rb test:                 
#   Starting program: /usr/local/bin/macruby ns_url_protocol_test.rb test:
#   
#   Program received signal EXC_BAD_ACCESS, Could not access memory.
#   Reason: KERN_PROTECTION_FAILURE at address: 0x0000000c
#   [Switching to process 22060 thread 0x530b]
#   0x95ee5027 in _longjmp ()
#   
#   (gdb) bt
#   #0  0x95ee5027 in _longjmp ()
#   #1  0x002e7e25 in vm_eval_body ()
#   #2  0x002e96a4 in vm_call0 ()
#   #3  0x003026ab in rb_ruby_to_objc_closure_handler_main ()
#   #4  0x003028d4 in rb_ruby_to_objc_closure_handler ()
#   #5  0x90136424 in ffi_closure_SYSV ()
#   #6  0x964615f4 in bridgeStart ()
#   #7  0x920ebfa5 in URLProtocol_Classic::startLoad ()
#   #8  0x92107877 in URLConnectionLoader::loaderScheduleOriginLoad ()
#   #9  0x921076df in URLConnectionLoader::loaderScheduleLoad ()
#   #10 0x92106753 in URLConnectionLoader::LoaderConnectionEventQueue::processAllEventsAndConsumePayload ()
#   #11 0x92106bdd in URLConnectionLoader::processEvents ()
#   #12 0x920b1dbf in MultiplexerSource::perform ()
#   #13 0x92ff8595 in CFRunLoopRunSpecific ()
#   #14 0x92ff8c78 in CFRunLoopRunInMode ()
#   #15 0x96460530 in +[NSURLConnection(NSURLConnectionReallyInternal) _resourceLoadLoop:] ()
#   #16 0x963fce0d in -[NSThread main] ()
#   #17 0x963fc9b4 in __NSThread__main__ ()
#   #18 0x95eeb155 in _pthread_start ()
#   #19 0x95eeb012 in thread_start ()

framework "cocoa"

class TestURLProtocol < NSURLProtocol
  def self.canInitWithRequest(request)
    request.URL.scheme == "test"
  end
  
  def self.canonicalRequestForRequest(request)
    request
  end
  
  def startLoading
    response = NSURLResponse.initWithURL(request.URL, MIMEType: "text/html", expectedContentLength: 5, textEncodingName: nil)
    data = NSData.dataWithBytes("Hello", length: 5)

    client.URLProtocol(self, didReceiveResponse: response, cacheStoragePolicy: NSURLCacheStorageNotAllowed)
    client.URLProtocol(self, didLoadData: data)
    client.URLProtocolDidFinishLoading
  end
  
  def stopLoading
  end
end

class TestApplication
  def initialize(url)
    @url = NSURL.URLWithString(url)
  end
  
  def applicationDidFinishLaunching(n)
    request = NSURLRequest.alloc.initWithURL(@url)

    if @connection = NSURLConnection.alloc.initWithRequest(request, delegate: self)
      @data = NSMutableData.data
    else
      error "couldn't create connection"
    end
  end
  
  def connection(connection, didReceiveResponse: response)
    @data.length = 0
  end
  
  def connection(connection, didReceiveData: data)
    @data.appendData(data)
  end
  
  def connection(connection, didFailWithError: error)
    puts error.inspect
  end
  
  def connectionDidFinishLoading(connection)
    puts "received #{@data.length} bytes"
    @connection = @data = nil
    exit
  end
end

if __FILE__ == $0
  NSURLProtocol.registerClass(TestURLProtocol)
  NSApplication.sharedApplication
  NSApp.delegate = TestApplication.new(ARGV.first || "test:")
  NSApp.run
end