KaneAI - World’s First E2E Software Testing Agent.Book a Demo 
How to use read_buffer method in yandex-tank
Best Python code snippet using yandex-tank
vnc.py
Source:vnc.py 
1import struct2from array import array3import PyD3DES4from AppKit import *5from twisted.internet.protocol import Protocol, ClientFactory6from twisted.internet import reactor7class NotEnoughDataException(Exception):8 pass9def tocard32(i):10 try:11 return struct.pack('!i', i)12 except struct.error, e:13 raise NotEnoughDataException(e)14def card32(i):15 if len(i) != 4:16 raise NotEnoughDataException(i)17 return array('i', i.tostring())[0]18def tocard16(i):19 try:20 return struct.pack('!h', i)21 except struct.error, e:22 raise NotEnoughDataException(e)23def card16(i):24 if len(i) != 2:25 raise NotEnoughDataException(i)26 return array('h', i.tostring())[0]27def tocard8(i):28 return chr(i)29 30def card8(i):31 return i32class PixelFormat(object):33 def __init__(self, **args):34 for k, v in args.items():35 setattr(self, k, v)36 37 def parse(klass, data):38 parts = list(data[:4])39 parts.append(card16(data[4:6]))40 parts.append(card16(data[6:8]))41 parts.append(card16(data[8:10]))42 parts += map(None, data[10:13])43 args = {}44 for attr, value in zip(('bpp', 'depth', 'bigendian', 'truecolor',45 'red_max', 'green_max', 'blue_max',46 'red_shift', 'green_shift',47 'blue_shift'), parts):48 args[attr] = value49 args['size'] = args['bpp'] / 850 return klass(**args)51 parse = classmethod(parse)52 53 def __str__(self):54 parts = [x for x in dir(self) if not x.startswith('_')]55 parts.sort()56 s = '\n'.join([('%12s: %s' % (x, getattr(self, x))) for x in parts])57 return s58 def pack(self):59 parts = [tocard8(self.bpp),60 tocard8(self.depth),61 tocard8(self.bigendian),62 tocard8(self.truecolor),63 tocard16(self.red_max),64 tocard16(self.green_max),65 tocard16(self.blue_max),66 tocard8(self.red_shift),67 tocard8(self.green_shift),68 tocard8(self.blue_shift),69 '\0' * 3]70 return ''.join(parts)71 def default(klass):72 return klass(bpp=32, depth=32, bigendian=0, truecolor=1, red_max=255, green_max=255, blue_max=255, red_shift=0, green_shift=8, blue_shift=16, size=4)73 default = classmethod(default)74class VNCClient(Protocol):75 RAW_ENCODING, COPYRECT_ENCODING, RRE_ENCODING, CORRE_ENCODING, HEXTILE_ENCODING = 0, 1, 2, 4, 576 def __init__(self, passwd=''):77 self.read_buffer = array('B')78 self.state = 'ProtocolVersion'79 self.states = { 'ProtocolVersion': self.do_ProtocolVersion,80 'Authentication': self.do_Auth,81 'Initialization': self.do_Init,82 'Connected': self.do_ConnectedHandler83 }84 self.auth_types = [self.do_ConnectionFailed,85 self.do_NoAuth,86 self.do_VNCAuth,87 ]88 self.vnc_auth_state = 089 self.vnc_auth_states = [self.do_VNCAuth1,90 self.do_VNCAuth2,91 ]92 self.connected_msgs = {0: self.do_FramebufferUpdate,93 2: self.do_Bell,94 3: self.do_ServerCutText,95 }96 def dataReceived(self, data):97 self.read_buffer.extend(array('B', data))98 self.states[self.state]()99 def setFrameBufferRect(self, x, y, w, h, data):100 destRect = ((x, y), (w, h))101 srcRect = ((0, 0), (w, h))102 103 self.frameBuffer.lockFocus()104 data.drawInRect_fromRect_operation_fraction_(destRect, srcRect, NSCompositeCopy, 1.0)105 self.frameBuffer.unlockFocus()106 107 def setFrameBufferRectToRawData(self, x, y, w, h, rawData):108 imgRep = NSBitmapImageRep.alloc().initWithBitmapDataPlanes_pixelsWide_pixelsHigh_bitsPerSample_samplesPerPixel_hasAlpha_isPlanar_colorSpaceName_bytesPerRow_bitsPerPixel_((rawData, None, None, None, None), w, h, 8, 4, True, False, NSCalibratedRGBColorSpace, 0, 4 * 8)109 imgRep.setAlpha_(False)110 img = NSImage.alloc().initWithSize_((w, h))111 img.setFlipped_(True)112 img.lockFocus()113 imgRep.drawInRect_(((0, 0), (w, h)))114 img.unlockFocus()115 self.setFrameBufferRect(x, y, w, h, img)116 117 def dumpFramebufferToFile(self):118 self.frameBuffer.TIFFRepresentationUsingCompression_factor_(NSTIFFCompressionLZW, 1.0).writeToFile_atomically_('VNC - %s.tiff' % (self.name, ), False)119 def do_ProtocolVersion(self):120 # Remove the servers version and return our own121 print('Protocol version recieved "%s"' % (''.join(self.read_buffer[:11].tostring()), ))122 self.read_buffer = self.read_buffer[12:]123 self.transport.write('RFB 003.003\n')124 self.state = 'Authentication'125 def do_ConnectionFailed(self):126 try:127 reason_length = card32(self.read_buffer[4:8])128 reason = self.read_buffer[8:8 + reason_length]129 self.read_buffer = self.read_buffer[8 + reason_length:]130 self.transport.loseConnection()131 print('Connection failed: %s' % (reason,))132 return 1133 except Exception, e:134 print repr(e)135 def do_Auth(self):136 t = self.read_buffer[:4]137 t = card32(t)138 print('Authentication type is %d (%r)' % (t, self.auth_types[t]))139 if self.auth_types[t]():140 pass141 142 def do_NoAuth(self):143 pass144 def do_VNCAuth(self):145 self.vnc_auth_states[self.vnc_auth_state]()146 def do_VNCAuth1(self):147 try:148 if len(self.read_buffer) < 20:149 raise IndexError150 challenge = self.read_buffer[4:20]151 self.read_buffer = self.read_buffer[20:]152 self.read_buffer.extend(array('B', '\x00\x00\x00\x02'))153 PyD3DES.setkey(self.factory.password)154 self.transport.write(PyD3DES.encrypt(challenge[:8]) + PyD3DES.encrypt(challenge[8:]))155 self.vnc_auth_state += 1156 except Exception, e:157 print repr(e), e158 return159 def do_VNCAuth2(self):160 try:161 if len(self.read_buffer) < 8:162 raise IndexError163 response = card32(self.read_buffer[4:8])164 if response == 0:165 print('Authentication succeeded')166 self.state = 'Initialization'167 self.read_buffer = self.read_buffer[8:]168 # Send the ClientInit message that consists169 # of a card32 that is 1 if the session is shared170 try:171 self.transport.write(chr(self.shared))172 except:173 self.transport.write(chr(0))174 elif response == 1:175 print('Invalid password')176 self.transport.loseConnection()177 elif response == 2:178 print('Too many connections!')179 self.transport.loseConnection()180 except Exception, e:181 print(e)182 183 184 def do_Init(self):185 """186 Handle a ServerInitialisation message.187 """188 if len(self.read_buffer) >= 24:189 print('ServerInitialisation buffer length: %d' % (len(self.read_buffer), ))190 self.fbsize = (card16(self.read_buffer[:2]), card16(self.read_buffer[2:4]))191 self.pixel_format = PixelFormat.parse(self.read_buffer[4:20])192 name_length = card32(self.read_buffer[20:24])193 else:194 return195 196 if len(self.read_buffer) < 24 + name_length:197 return198 self.name = ''.join(self.read_buffer[24:24 + name_length].tostring())199 print('Connected to %s' % (self.name, ))200 print('Servers pixel format: \n%s' % (self.pixel_format, ))201 202 self.frameBuffer = NSImage.alloc().initWithSize_(self.fbsize)203 self.frameBuffer.setFlipped_(True)204 self.alreadyProcessedRectangles = (0, 4)205 self.read_buffer = self.read_buffer[24 + name_length:]206 self.state = 'Connected'207 self.send_SetPixelFormat(PixelFormat.default())208 self.send_SetEncoding((self.CORRE_ENCODING, ))209 self.send_FramebufferUpdateRequest((0, 0, self.fbsize[0], self.fbsize[1]), 0)210 211 def do_ConnectedHandler(self):212 """ """213 p = NSAutoreleasePool.alloc().init()214 self.connected_msgs[self.read_buffer[0]]()215 del p216 def do_FramebufferUpdate(self):217 buf = self.read_buffer218 try:219 messageType = buf[0]220 numberOfRectangles = card16(buf[2:4])221 222 firstRectangle, currentRectangleStart = self.alreadyProcessedRectangles223 for currentRectangle in range(firstRectangle, numberOfRectangles):224 currentRectangleLength = 0225 x, y, width, height = card16(buf[currentRectangleStart :currentRectangleStart + 2]), \226 card16(buf[currentRectangleStart + 2:currentRectangleStart + 4]), \227 card16(buf[currentRectangleStart + 4:currentRectangleStart + 6]), \228 card16(buf[currentRectangleStart + 6:currentRectangleStart + 8])229 encodingType = card32(buf[currentRectangleStart + 8:currentRectangleStart + 12])230 currentRectangleLength += 12231 232 currentEncodingStart = currentRectangleStart + 12233 currentEncodingLength = 0234 if encodingType == self.RAW_ENCODING:235 currentEncodingLength = VNCClient._Raw(self, currentEncodingStart, x, y, width, height, NotEnoughDataException)236 elif encodingType == self.CORRE_ENCODING:237 currentEncodingLength = VNCClient._CoRRE(self, currentEncodingStart, x, y, width, height, NotEnoughDataException)238 else:239 print '\t\tUnknown encoding!', encodingType240 currentRectangleLength += currentEncodingLength241 currentRectangleStart += currentRectangleLength242 243 self.alreadyProcessedRectangles = (currentRectangle + 1, currentRectangleStart)244 245 self.read_buffer = self.read_buffer[currentRectangleStart:]246 self.alreadyProcessedRectangles = (0, 4)247# self.dumpFramebufferToFile()248 self.send_FramebufferUpdateRequest((0, 0, self.fbsize[0], self.fbsize[1]), 0)249# self.transport.loseConnection()250 except NotEnoughDataException, e:251 pass252 253 def _Raw(self, currentEncodingStart, x, y, width, height, NotEnoughDataException):254 rawDataLength = width * height * self.pixel_format.size255 rawData = self.read_buffer[currentEncodingStart:currentEncodingStart + rawDataLength]256 if len(rawData) < rawDataLength:257 raise NotEnoughDataException258 259 self.setFrameBufferRectToRawData(x, y, width, height, rawData)260 return rawDataLength261 262 def _CoRRE(self, currentEncodingStart, x, y, width, height, NotEnoughDataException):263 buf = self.read_buffer264 if len(buf) < currentEncodingStart + 8:265 raise NotEnoughDataException266 267 numberOfSubRectangles = card32(buf[currentEncodingStart:currentEncodingStart + 4])268 r, g, b, a = buf[currentEncodingStart + 4:currentEncodingStart + 8]269 270 self.frameBuffer.lockFocus()271 NSColor.colorWithCalibratedRed_green_blue_alpha_(r / 255.0, g / 255.0, b / 255.0, 1.0).set()272 NSRectFill(((x, y), (width, height)))273 274 currentSubRectangleStart = currentEncodingStart + 8275 276 if len(buf) < currentSubRectangleStart + (8 * numberOfSubRectangles):277 raise NotEnoughDataException278 279 subRectangleRects = []280 subRectangleColors = []281 if numberOfSubRectangles:282 for currentSubRectangle in range(numberOfSubRectangles):283 r, g, b, a, srX, srY, srWidth, srHeight = buf[currentSubRectangleStart:currentSubRectangleStart + 8]284 285 subRectangleRects.append(((x + srX, y + srY), (srWidth, srHeight)))286 subRectangleColors.append((r / 255.0, g / 255.0, b / 255.0, 1.0))287 currentSubRectangleStart += 8288 289 subRectangleColors = map(NSColor.colorWithCalibratedRed_green_blue_alpha_, *zip(*subRectangleColors)) 290 NSRectFillListWithColors(subRectangleRects, subRectangleColors)291 292 self.frameBuffer.unlockFocus()293 294 currentEncodingLength = 8 * (numberOfSubRectangles + 1)295 return currentEncodingLength296 297 try:298 from _CoRRE import _CoRRE299 except ImportError:300 pass301 def do_Bell(self):302 self.read_buffer = self.read_buffer[1:]303 def do_ServerCutText(self):304 length = card32(self.read_buffer[4:8])305 text = self.read_buffer[8:8 + length]306 print text307 self.read_buffer = self.read_buffer[8 + length:]308 309 def send_SetPixelFormat(self, pixelFormat):310 self.pixel_format = pixelFormat311 msg = tocard8(0)312 msg += '\0' * 3313 msg += pixelFormat.pack()314 self.transport.write(msg)315 def send_SetEncoding(self, encodings):316 msg = tocard8(2)317 msg = msg + '\0'318 msg = msg + tocard16(len(encodings))319 encs = map(tocard32, encodings)320 msg = msg + ''.join(encs)321 self.transport.write(msg)322 def send_FramebufferUpdateRequest(self, pos, incremental):323 msg = tocard8(3)324 msg = msg + tocard8(incremental)325 msg = msg + ''.join(map(tocard16, pos))326 self.transport.write(msg)327 def send_KeyEvent(self, down, key):328 msg = tocard8(4)329 msg = msg + tocard8(down) + '\0'330 msg = msg + tocard32(key)331 self.transport.write(msg)332 def send_PointerEvent(self, pos, buttons):333 msg = tocard8(5)334 msg = msg + tocard8(buttons)335 msg = msg + ''.join(map(tocard16, pos))336 self.transport.write(msg)337 def send_ClientCutText(self, text):338 msg = tocard8(6)339 msg = msg + ' ' + card32(len(text))340 msg = msg + text341 self.transport.write(msg)342class VNCClientFactory(ClientFactory):343 protocol = VNCClient344 def __init__(self, password):345 self.password = password346 def startedConnecting(self, connector):347 print 'startedConnecting'348 def clientConnectionFailed(self, connector, reason):349 print 'Connection failed. Reason:', reason350 def clientConnectionLost(self, connector, reason):351 print 'Connection lost. Reason:', reason352 if reactor.running:353 reactor.stop()354import hotshot, hotshot.stats355def main():356 import sys357 if len(sys.argv) < 4:358 print 'Usage: %s hostname port password' % (sys.argv[0], )359 return360 NSApplicationLoad()361 reactor.connectTCP(sys.argv[1], int(sys.argv[2]), VNCClientFactory(sys.argv[3]))362 reactor.run()363import profile, pstats364if __name__ == '__main__':365 main()...
frame.py
Source:frame.py
1import struct2from enum import IntEnum3from mod_websocket_server.util import skip_first4class OpCode(IntEnum):5 CONTINUATION = 0x06 TEXT = 0x17 BINARY = 0x28 CLOSE = 0x89 PING = 0x910 PONG = 0xA11class Mask(object):12 def __init__(self, masking_key):13 if len(masking_key) != 4:14 raise ValueError(15 "Masking-key must be exactly four bytes, {length} given.".format(16 length=len(masking_key)17 )18 )19 self.masking_key = bytearray(masking_key)20 def mask(self, data):21 data = bytearray(data)22 for i in xrange(len(data)):23 data[i] ^= self.masking_key[i % 4]24 return data25class Frame(object):26 def __init__(self, fin, op_code, mask, payload):27 self.fin = fin28 self.op_code = op_code29 self.mask = mask30 self.payload = payload31 @property32 def masked(self):33 return self.mask is not None34 @property35 def payload_length(self):36 return len(self.payload)37 def serialize(self):38 frame = bytearray()39 fin_bit = self.fin << 740 frame += struct.pack("!B", fin_bit | self.op_code)41 masked_bit = self.masked << 742 if self.payload_length <= 125:43 frame += struct.pack("!B", masked_bit | self.payload_length)44 elif self.payload_length < 2 ** 16:45 frame += struct.pack("!B", masked_bit | 126)46 frame += struct.pack("!H", self.payload_length)47 else:48 frame += struct.pack("!B", masked_bit | 127)49 frame += struct.pack("!Q", self.payload_length)50 if self.masked:51 frame += self.mask.masking_key52 frame += self.mask.mask(self.payload)53 else:54 frame += self.payload55 return frame56 @classmethod57 @skip_first58 def multi_parser(cls):59 parser = cls.parser()60 remaining = None61 frames = []62 while True:63 if remaining is None:64 remaining = yield frames65 frames = []66 result = parser.send(remaining)67 if result:68 frame, remaining = result69 frames.append(frame)70 parser = cls.parser()71 else:72 remaining = None73 @staticmethod74 @skip_first75 def parser():76 read_buffer = bytearray()77 # ------------------------------------------78 # first byte79 # ------------------------------------------80 while len(read_buffer) < 1:81 read_buffer += yield82 fin_mask = 0b1000000083 fin = bool(read_buffer[0] & fin_mask)84 rsv_mask = 0b0111000085 if read_buffer[0] & rsv_mask:86 raise AssertionError("Unsupported extension.")87 op_code_mask = 0b0000111188 op_code = OpCode(read_buffer[0] & op_code_mask)89 read_buffer = read_buffer[1:]90 # ------------------------------------------91 # second byte92 # ------------------------------------------93 while len(read_buffer) < 1:94 read_buffer += yield95 masked_mask = 0b1000000096 masked = bool(read_buffer[0] & masked_mask)97 payload_length_mask = 0b0111111198 payload_length = read_buffer[0] & payload_length_mask99 read_buffer = read_buffer[1:]100 # ------------------------------------------101 # extended length field102 # ------------------------------------------103 if payload_length == 126:104 while len(read_buffer) < 2:105 read_buffer += yield106 (payload_length,) = struct.unpack("!H", read_buffer[:2])107 read_buffer = read_buffer[2:]108 elif payload_length == 127:109 while len(read_buffer) < 4:110 read_buffer += yield111 (payload_length,) = struct.unpack("!Q", read_buffer[:4])112 read_buffer = read_buffer[4:]113 # ------------------------------------------114 # mask key115 # ------------------------------------------116 mask = None117 if masked:118 while len(read_buffer) < 4:119 read_buffer += yield120 mask = Mask(read_buffer[:4])121 read_buffer = read_buffer[4:]122 # ------------------------------------------123 # payload124 # ------------------------------------------125 while len(read_buffer) < payload_length:126 read_buffer += yield127 payload = read_buffer[:payload_length]128 read_buffer = read_buffer[payload_length:]129 # ------------------------------------------130 # assemble131 # ------------------------------------------132 if masked:133 payload = mask.mask(payload)134 yield Frame(fin, op_code, mask, payload), read_buffer135 def __repr__(self):...
nbt.py
Source:nbt.py
1import struct2def parse_nbt(read_buffer):3 tag_id = read_buffer.read_byte()4 name = read_name(read_buffer)5 return {name:parse(tag_id, read_buffer)}6def read_name(read_buffer):7 length = read_buffer.read_ushort()8 string = read_buffer.read(length).decode('utf8')9 return string10def parse(tag_id, read_buffer):11 if tag_id == 0:12 return None13 elif tag_id == 1:14 return parse_byte(read_buffer)15 elif tag_id == 2:16 return parse_short(read_buffer)17 elif tag_id == 3:18 return parse_int(read_buffer)19 elif tag_id == 4:20 return parse_long(read_buffer)21 elif tag_id == 5:22 return parse_float(read_buffer)23 elif tag_id == 6:24 return parse_double(read_buffer)25 elif tag_id == 7:26 return parse_byte_array(read_buffer)27 elif tag_id == 8:28 return parse_string(read_buffer)29 elif tag_id == 9:30 return parse_list(read_buffer)31 elif tag_id == 10:32 return parse_compound(read_buffer)33 elif tag_id == 11:34 return parse_int_array(read_buffer)35 elif tag_id == 12:36 return parse_long_array(read_buffer)37 else:38 raise Exception('Invalid tag id')39def parse_byte(read_buffer):40 payload = read_buffer.read_sbyte()41 return payload42def parse_short(read_buffer):43 payload = read_buffer.read_short()44 return payload45def parse_int(read_buffer):46 payload = read_buffer.read_int()47 return payload48def parse_long(read_buffer):49 payload = read_buffer.read_long()50 return payload51def parse_float(read_buffer):52 payload = read_buffer.read_float()53 return payload54def parse_double(read_buffer):55 payload = read_buffer.read_double()56 return payload57def parse_byte_array(read_buffer):58 length = read_buffer.read_int()59 payload = [read_buffer.read_sbyte() for _ in range(length)]60 return payload61def parse_string(read_buffer):62 length = read_buffer.read_ushort()63 payload = read_buffer.read(length).decode('utf8')64 return payload65def parse_list(read_buffer):66 tag_id = read_buffer.read_byte()67 length = read_buffer.read_int()68 if length > 0 and tag_id == 0:69 raise Exception("Cannot have a non-zero length list of End Tags")70 if tag_id == 0:71 return []72 else:73 return [parse(tag_id, read_buffer) for _ in range(length)]74def parse_compound(read_buffer):75 tag_id = read_buffer.read_byte()76 output = []77 while tag_id != 0:78 name = read_name(read_buffer)79 payload = parse(tag_id, read_buffer)80 output.append({name:payload})81 tag_id = read_buffer.read_byte()82 return output83def parse_int_array(read_buffer):84 length = read_buffer.read_int()85 return [read_buffer.read_int() for _ in range(length)]86def parse_long_array(read_buffer):87 length = read_buffer.read_int()...
Automation Testing Tutorials
Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.
LambdaTest Learning Hubs:
- JUnit Tutorial
- TestNG Tutorial
- Webdriver Tutorial
- WebDriverIO Tutorial
- Protractor Tutorial
- Selenium 4 Tutorial
- Jenkins Tutorial
- NUnit Tutorial
- Jest Tutorial
- Playwright Tutorial
- Cypress Tutorial
- PyTest Tutorial
YouTube
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Run yandex-tank automation tests on LambdaTest cloud grid
Perform automation testing on 3000+ real desktop and mobile devices online.
Try LambdaTest Now !!
Get 100 minutes of automation test minutes FREE!!
Was this article helpful?
