Class: Arachni::HTTP::ProxyServer::Connection
- Inherits:
-
Reactor::Connection
- Object
- Reactor::Connection
- Arachni::HTTP::ProxyServer::Connection
show all
- Includes:
- UI::Output
- Defined in:
- lib/arachni/http/proxy_server/connection.rb
Constant Summary
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%w(transfer-encoding connection proxy-connection keep-alive
content-encoding te trailers accept-encoding accept-ranges vary)
Instance Attribute Summary collapse
Instance Method Summary
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Methods included from UI::Output
#caller_location, #debug?, #debug_level, #debug_level_1?, #debug_level_2?, #debug_level_3?, #debug_level_4?, #debug_off, #debug_on, #disable_only_positives, #error_buffer, #error_log_fd, #error_logfile, #has_error_log?, #included, #log_error, #mute, #muted?, #only_positives, #only_positives?, #print_bad, #print_debug, #print_debug_backtrace, #print_debug_exception, #print_debug_level_1, #print_debug_level_2, #print_debug_level_3, #print_debug_level_4, #print_error, #print_error_backtrace, #print_exception, #print_info, #print_line, #print_ok, #print_status, #print_verbose, #reroute_to_file, #reroute_to_file?, reset_output_options, #set_error_logfile, #unmute, #verbose?, #verbose_off, #verbose_on
Constructor Details
#initialize(options = {}) ⇒ Connection
Returns a new instance of Connection.
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# File 'lib/arachni/http/proxy_server/connection.rb', line 23
def initialize( options = {} )
@options = options
@parent = options[:parent]
@body = ''
@parser = ::HTTP::Parser.new
@raw_request = ''
@parser.on_message_begin = proc do
if @reused
print_debug_level_3 "Reusing connection: #{object_id}"
else
print_debug_level_3 "Starting new connection: #{object_id}"
end
@reused = true
print_debug_level_3 'Incoming request.'
@parent.mark_connection_active self
end
@parser.on_body = proc do |chunk|
print_debug_level_3 "Got #{chunk.size} bytes."
@body << chunk
end
@parser.on_message_complete = proc do
method = @parser.http_method.downcase.to_sym
= ( @parser. )
print_debug_level_3 "Request received: #{@parser.http_method} #{@parser.request_url}"
if ['upgrade']
handle_upgrade( )
next
end
if method == :connect
handle_connect( )
next
end
if !@parent.has_available_request_tokens?
print_debug_level_3 'Waiting for a request token.'
end
@parent.get_request_token do |token|
print_debug_level_3 "Got request token ##{token}."
if closed?
print_debug_level_3 'Connection closed while waiting for a request token.'
@parent.return_request_token( token )
print_debug_level_3 "Returned request token ##{token}."
next
end
Thread.new do
begin
@request = Arachni::HTTP::Request.new(
http_opts.merge(
url: sanitize_url( @parser.request_url, ),
method: method,
body: @body,
headers: Arachni::HTTP::Client..to_h.merge( )
)
)
handle_request( @request )
rescue => e
close e
ensure
@parent.return_request_token( token )
print_debug_level_3 "Returned request token ##{token}."
end
end
end
end
end
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Instance Attribute Details
Returns the value of attribute parent.
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# File 'lib/arachni/http/proxy_server/connection.rb', line 20
def parent
@parent
end
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Returns the value of attribute request.
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# File 'lib/arachni/http/proxy_server/connection.rb', line 21
def request
@request
end
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Instance Method Details
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# File 'lib/arachni/http/proxy_server/connection.rb', line 287
def ( )
= Arachni::HTTP::Headers.new( )
SKIP_HEADERS.each do |name|
.delete name
end
.to_h
end
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# File 'lib/arachni/http/proxy_server/connection.rb', line 297
def ( )
SKIP_HEADERS.each do |name|
.delete name
end
end
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#handle_connect(headers) ⇒ Object
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# File 'lib/arachni/http/proxy_server/connection.rb', line 116
def handle_connect( )
print_debug_level_3 'Preparing to intercept.'
host = (['Host'] || @parser.request_url).split( ':', 2 ).first
start_interceptor( host )
@last_http = true
write "HTTP/#{http_version} 200\r\n\r\n"
end
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#handle_request(request) ⇒ Object
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# File 'lib/arachni/http/proxy_server/connection.rb', line 128
def handle_request( request )
print_debug_level_3 'Processing request.'
if @options[:request_handler]
print_debug_level_3 "-- Has special handler: #{@options[:request_handler]}"
response = Response.new( url: request.url )
response.request = request
if @options[:request_handler].call( request, response )
print_debug_level_3 '-- Handler approves, running...'
response = request.run
print_debug_level_3 "-- ...completed in #{response.time}: #{response.status_line}"
else
print_debug_level_3 '-- Handler did not approve, will not run.'
end
else
print_debug_level_3 '-- Running...'
response = request.run
print_debug_level_3 "-- ...completed in #{response.time}: #{response.status_line}"
end
print_debug_level_3 'Processed request.'
reactor.schedule { handle_response( response ) }
end
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#handle_response(response) ⇒ Object
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# File 'lib/arachni/http/proxy_server/connection.rb', line 166
def handle_response( response )
print_debug_level_3 'Preparing response.'
if closed?
print_debug_level_3 '-- Connection closed, will not respond.'
return
end
if @options[:response_handler]
print_debug_level_3 "-- Has special handler: #{@options[:response_handler]}"
@options[:response_handler].call( response.request, response )
end
code = response.code
if response.code == 0
code = 504
end
res = "HTTP/#{http_version} #{code}\r\n"
= ( response. )
['Content-Length'] = response.body.bytesize
if response.text? && .content_type
['Content-Type'] =
"#{.content_type.split( ';' ).first}; charset=utf-8"
end
.each do |k, v|
if v.is_a?( Array )
v.flatten.each do |h|
res << "#{k}: #{h.gsub(/[\n\r]/, '')}\r\n"
end
next
end
res << "#{k}: #{v}\r\n"
end
res << "\r\n"
print_debug_level_3 "Sending response for: #{@request.url}"
write (res << response.body)
end
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#handle_upgrade(headers) ⇒ Object
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# File 'lib/arachni/http/proxy_server/connection.rb', line 103
def handle_upgrade( )
print_debug_level_3 'Preparing to upgrade.'
host = (['Host'] || @parser.request_url).split( ':', 2 ).first
@tunnel = reactor.connect( host, 80, Tunnel, @options.merge( client: self ) )
@last_http = true
@tunnel.write @raw_request
end
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#http_opts(options = {}) ⇒ Object
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# File 'lib/arachni/http/proxy_server/connection.rb', line 319
def http_opts( options = {} )
options.merge(
performer: self,
follow_location: false,
timeout: @options[:timeout],
update_cookies: true,
mode: :sync,
response_max_size: -1
)
end
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#http_version ⇒ Object
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# File 'lib/arachni/http/proxy_server/connection.rb', line 162
def http_version
@parser.http_version.join('.')
end
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#on_close(reason = nil) ⇒ Object
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# File 'lib/arachni/http/proxy_server/connection.rb', line 215
def on_close( reason = nil )
print_debug_level_3 "Closed because: [#{reason.class}] #{reason}"
@parent.mark_connection_inactive self
if @ssl_interceptor
@ssl_interceptor.close( reason )
@ssl_interceptor = nil
end
if @tunnel
@tunnel.close_without_callback
@tunnel = nil
end
end
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# File 'lib/arachni/http/proxy_server/connection.rb', line 231
def on_flush
if !@tunnel || @last_http
if @last_http
print_debug_level_3 'Last response sent, switching to tunnel.'
elsif @request
print_debug_level_3 "Response sent for: #{@request.url}"
end
@last_http = false
end
@body = ''
@raw_request = ''
@request = nil
@parser.reset!
@parent.mark_connection_inactive self
end
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#on_read(data) ⇒ Object
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# File 'lib/arachni/http/proxy_server/connection.rb', line 256
def on_read( data )
@raw_request << data
if @tunnel
@tunnel.write( data )
return
end
@parser << data
rescue ::HTTP::Parser::Error => e
close e
end
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#sanitize_url(str, headers) ⇒ Object
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# File 'lib/arachni/http/proxy_server/connection.rb', line 304
def sanitize_url( str, )
uri = Arachni::URI( str )
return uri.to_s if uri.absolute?
host, port = *['Host'].split( ':', 2 )
uri.scheme = self.is_a?( SSLInterceptor ) ? 'https' : 'http'
uri.host = host
uri.port = port ? port.to_i : nil
uri.to_s
end
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#start_interceptor(origin_host) ⇒ Object
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# File 'lib/arachni/http/proxy_server/connection.rb', line 271
def start_interceptor( origin_host )
@interceptor_port = Utilities.available_port
print_debug_level_3 "Starting interceptor on port: #{@interceptor_port}"
@ssl_interceptor = reactor.listen(
@options[:address], @interceptor_port, SSLInterceptor,
@options.merge( origin_host: origin_host )
)
@tunnel = reactor.connect(
@options[:address], @interceptor_port, Tunnel,
@options.merge( client: self )
)
end
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#write(data) ⇒ Object
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# File 'lib/arachni/http/proxy_server/connection.rb', line 251
def write( data )
return if closed?
super data
end
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