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ap2-receiver.py
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ap2-receiver.py
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import os
import sys
import time
import struct
import socket
import logging
import argparse
import tempfile
import multiprocessing
import random
import threading
from threading import current_thread
import pprint
import http.server
import socketserver
import asyncio
import netifaces as ni
from hexdump import hexdump
from zeroconf import IPVersion, ServiceInfo, Zeroconf, NonUniqueNameException
from biplist import readPlistFromString, writePlistToString
from biplist import InvalidPlistException, NotBinaryPlistException
from ap2.playfair import PlayFair, FairPlayAES
from ap2.airplay1 import AP1Security
from ap2.utils import get_volume, set_volume, set_volume_pid, get_screen_logger
from ap2.pairing.hap import Hap, HAPSocket, LTPK, DeviceProperties
from ap2.connections.event import EventGeneric
from ap2.connections.stream import Stream
from ap2.connections.session_properties import Session
from ap2.dxxp import parse_dxxp
from ap2.bitflags import FeatureFlags, StatusFlags
from ap2.sdphandler import SDPHandler
FEATURES = FeatureFlags.GetDefaultAirplayTwoFlags(FeatureFlags)
STATUS_FLAGS = StatusFlags.GetDefaultStatusFlags(StatusFlags)
# PI = Public ID (can be GUID, MAC, some string).
# Note: BINARY. HAP classes expect binary format. Must be in text in device_info.
PI = b'aa5cb8df-7f14-4249-901a-5e748ce57a93'
STREAM_ID = 0
DEBUG = False
# The device MAC - string form.
DEVICE_ID = None
# HAP object to hold device properties like name, ACL, password etc.
DEV_PROPS = None
# The chosen interface's IPv4/6
IPV4 = None
IPV6 = None
IPADDR = None
# Globally assign the device name provided from the command line
DEV_NAME = None
# Object to hold our mDNS broadcaster
MDNS_OBJ = None
# HomeKit AccessControl level to persist settings we get from HomeKit
# 0=Everyone, 1=(HomeKit Users), 2=Admin
HK_ACL_LEVEL = 0
# HomeKit assigned password (numeric PIN) to access
HK_PW = None
"""
# SERVER_VERSION; presence/absence, and value dictates client behaviours
Set above 360 to trigger remote control
Set to <= 355 to trigger REALTIME and NTP (as opposed to buffered streams)
Set to >= 355 to trigger PTP and buffered.
Set to <= 350 to prevent shk in streams.
Set to 300 to trigger ??
Set to 200 to trigger ANNOUNCE (APv1)
"""
SERVER_VERSION = "366.0"
HTTP_CT_BPLIST = "application/x-apple-binary-plist"
HTTP_CT_OCTET = "application/octet-stream"
HTTP_CT_PARAM = "text/parameters"
HTTP_CT_IMAGE_JPEG = "image/jpeg"
HTTP_CT_IMAGE = "image/"
HTTP_CT_DMAP = "application/x-dmap-tagged"
HTTP_CT_PAIR = "application/pairing+tlv8"
"""
X-Apple-HKP:
Values 0,2,3,4,6 seen.
0 = Unauth. When Ft48TransientPairing and Ft43SystemPairing are absent
2 = (pair-setup complete, pair-verify starts)
3 = SystemPairing (with Ft43SystemPairing)
4 = Transient
6 = HomeKit
7 = HomeKit (administration)
"""
HTTP_X_A_HKP = "X-Apple-HKP"
HTTP_X_A_CN = "X-Apple-Client-Name"
HTTP_X_A_PD = "X-Apple-PD"
# HTTP_X_A_AT: Unix timestamp for current system date/time.
HTTP_X_A_AT = "X-Apple-AbsoluteTime"
# Encryption Type
HTTP_X_A_ET = "X-Apple-ET"
#
AIRPLAY_BUFFER = 8388608 # 0x800000 i.e. 1024 * 8192 - how many CODEC frame size 1024 we can hold
def increase_stream_id():
global STREAM_ID
STREAM_ID += 1
# ID shall not exceed 32 bits.
STREAM_ID &= 0xFFFFFFFF
return STREAM_ID
def get_hex_bitmask(in_features):
"""
prepares the feature bits into text form
"""
if in_features.bit_length() <= 32:
# print(f"{hex(in_features)}")
return f"{hex(in_features)}"
else:
# print(f'feature bit length: {in_features.bit_length()} ')
# print(f"{hex(in_features & 0xffffffff)},{hex(in_features >> 32 & 0xffffffff)}")
return f"{hex(in_features & 0xffffffff)},{hex(in_features >> 32 & 0xffffffff)}"
def update_status_flags(flag=None, on=False, push=True):
global MDNS_OBJ
""" Use this to check for and send out updated status flags
if flag is None, skip changing the flags (e.g. updates already queued)
if on is true, add the flag in, otherwise remove it.
if push is False, skip the update (e.g. you want to queue multiple changes)
"""
if flag:
global STATUS_FLAGS
# If the flag is not present in STATUS_FLAGS, add it in, if on is True
if not STATUS_FLAGS & flag and on:
STATUS_FLAGS ^= flag
elif STATUS_FLAGS & flag and not on:
STATUS_FLAGS ^= flag
# update the global info structures
setup_global_structs(args, isDebug=DEBUG)
# If push is false, we skip pushing out the update.
if push:
MDNS_OBJ = register_mdns(DEVICE_ID, DEV_NAME, [IP4ADDR_BIN, IP6ADDR_BIN])
def setup_global_structs(args, isDebug=False):
global device_info
global device_setup
global stream_setup_data
global second_stage_info
global mdns_props
global LTPK_OBJ
global DEV_NAME
LTPK_OBJ = LTPK(PI, isDebug)
device_info = {
# 'OSInfo': 'Linux 3.10.53',
# 'PTPInfo': 'OpenAVNU ArtAndLogic-aPTP-changes a5d7f94-0.0.1',
'audioLatencies': [
{
# audioType can be: e.g. NULL/nothing (iTunes), default, media, telephony, speechRecognition, alert
# (AP1?) GeneralAudio(96), MainAudio(100), AltAudio(101), Screen(110).
# Absence triggers default.
# 'audioType': 'default',
'inputLatencyMicros': 0,
'outputLatencyMicros': 400000,
# Type can be any RTP type, 96, 100, 103, 110 etc.
# 'type': 96
},
],
# 'build': '16.0',
'deviceID': DEVICE_ID,
# features: can send in hex() also
'features': int(FEATURES),
# 'features': 496155769145856, # Sonos One
# 'firmwareBuildDate': 'Nov 5 2019',
# 'firmwareRevision': '53.3-71050',
# 'hardwareRevision': '1.21.1.8-2',
# 'initialVolume': -144.0,
'keepAliveLowPower': True,
'keepAliveSendStatsAsBody': True,
'manufacturer': 'OpenAirplay',
'model': 'Receiver',
'name': DEV_NAME,
'nameIsFactoryDefault': False,
'pi': PI.decode(), # UUID generated casually..
# 'psi': PI.decode(), # ?
'protocolVersion': '1.1',
'sdk': 'AirPlay;2.0.2',
'sourceVersion': SERVER_VERSION,
'statusFlags': get_hex_bitmask(STATUS_FLAGS),
# 'supportedFormats': {
# 'lowLatencyAudioStream': 0,
# # 'screenStream': 21235712,
# 'audioStream': 21235712,
# 'bufferStream': 14680064,
# },
# 'statusFlags': 0x404 # Sonos One
# 'volumeControlType': 4, # 1-4 all seem to behave the same.
# 'vv': 2,
}
if DISABLE_VM:
volume = 0
else:
volume = get_volume()
second_stage_info = {
"initialVolume": volume,
}
device_setup = {
'eventPort': 0 # AP2 receiver event server
}
if not DISABLE_PTP_MASTER:
if IPV6 and not IPV4:
addr = [
IPV6
]
else:
# Prefer (only) IPV4
addr = [
IPV4
]
device_setup['timingPort'] = 0 # Seems like legacy, non PTP setting
device_setup['timingPeerInfo'] = {
'Addresses': addr,
'ID': DEVICE_ID
}
stream_setup_data = {
'streams': [
]
}
mdns_props = {
# Airplay flags
# Access ControL. 0,1,2 == anon,users,admin(?)
"acl": HK_ACL_LEVEL,
"deviceid": DEVICE_ID, # device MAC addr
# Features, aka ft - see Feat class.
"features": get_hex_bitmask(FEATURES),
# flags (bitmask)
"flags": get_hex_bitmask(STATUS_FLAGS),
# Group Contains Group Leader.
"gcgl": "0",
# Group UUID (generated casually)
"gid": "5dccfd20-b166-49cc-a593-6abd5f724ddb",
# isGroupLeader: See gcgl
# "isGroupLeader": "0",
"manufacturer": "OpenAirplay",
"model": "Airplay2-Receiver",
"name": DEV_NAME,
"protovers": "1.1",
# Required Sender Features (bitmask)
"rsf": "0x0",
"serialNumber": DEVICE_ID,
# Source Version (airplay SDK?): absence triggers AP1 ANNOUNCE behaviour.
"srcvers": SERVER_VERSION,
# RAOP Flags - ("xx") - mostly used with RAOP
# These are found under the <deviceid>@<name> mDNS record.
# Apple Model (name)
# "am": "One",
# (amount of audio) CHannels
"ch": "2",
# CompressioN. 0,1,2,3 == (None aka) PCM, ALAC, AAC, AAC_ELD
"cn": "0,1,2",
# Digest Auth RFC-2617 support
# "da": "true",
# Encryption Key
# "ek": "1",
# Encryption Types. 0,1,3,4,5 == None, RSA, FairPlay, Mfi, FairPlay SAPv2.5
# "et": "0,1,3",
# "et": "0,1,3,4,5",
# Firmware version. p20 == AirPlay Src revision?
# "fv": "p20.78000.12",
# MetaData(?) 0,1,2 == Text, Gfx, Progress (only needed for pre iOS7 senders)
# "md": "0,1,2",
# Pairing UUID (generated casually)
"pi": PI.decode(),
# Ed25519 PubKey
"pk": LTPK_OBJ.get_pub_string(),
# "protovers": "1.1",
# PassWord enabled: 0/false off, 1/true on.
# -This requires Method POST Path /pair-pin-start endpoint
# "pw": "false",
# Status Flags (bitmask): see StatusFlags class.
"sf": get_hex_bitmask(STATUS_FLAGS),
# Software Mute (whether needed)
# "sm": "false",
# Sample Rate
# "sr": "44100",
# Sample Size
# "ss": "16",
# Software Volume (whether needed)
# "sv": "false",
# TransPort for media. CSV of capables transports for audio
# "tp": "TCP,UDP",
# (Airplay) version number (supported) 16bit.16bit, 65537 == 1.1
# "vn": "65537",
# Source version
# "vs": "366",
}
class AP2Handler(http.server.BaseHTTPRequestHandler):
aeskeyobj = None
pp = pprint.PrettyPrinter()
timing_port, ptp_port = 0, 0
timing_proc, ptp_proc = None, None
fairplay_keymsg = None
ecdh_shared_key = None
session = None
hap = None
# Maps paths to methods a la HAP-python
HANDLERS = {
"POST": {
"/command": "handle_command",
"/feedback": "handle_feedback",
"/audioMode": "handle_audiomode",
"/auth-setup": "handle_auth_setup",
"/fp-setup": "handle_fp_setup",
"/fp-setup2": "handle_auth_setup",
"/pair-pin-start": "handle_pair_pin_start",
"/pair-setup": "handle_pair_setup",
"/pair-verify": "handle_pair_verify",
"/pair-add": "handle_pair_add",
"/pair-remove": "handle_pair_remove",
"/pair-list": "handle_pair_list",
"/configure": "handle_configure",
},
"GET": {
"/info": "handle_info",
},
"PUT": {"/xyz": "handle_xyz"},
}
""" This is needed now to prep logging in case we get a sneak attack from
AP1 senders that don't go via dispatch """
def __init__(self, socket, client_address, server):
""" thread local logging """
server_address = socket.getsockname()
pair_string = f'{self.__class__.__name__}: {server_address[0]}:{server_address[1]}<=>{client_address[0]}:{client_address[1]}'
pair_string += f'; {current_thread().name}'
level = 'DEBUG' if DEBUG else 'INFO'
self.logger = get_screen_logger(pair_string, level=level)
http.server.BaseHTTPRequestHandler.__init__(self, socket, client_address, server)
return
def dispatch(self):
"""Dispatch the request to the appropriate handler method."""
path = self.path
paramStr = ''
if '?' in self.path:
path = self.path.split('?')[0]
paramStr = self.path.split('?')[1]
self.logger.debug(f'{self.command}: {path}')
self.logger.debug(f'!Dropped parameters: {paramStr}') if paramStr else self.logger.debug('')
self.logger.debug(self.headers)
try:
# pass additional paramArray:
# getattr(self, self.HANDLERS[self.command][path])(paramArray)
# Note: handle_* signatures need e.g. (self, *args, **kwargs)
getattr(self, self.HANDLERS[self.command][path])()
except KeyError:
self.send_error(
404,
f": Method {self.command} Path {path} endpoint not implemented"
)
self.hap = None
def parse_request(self):
self.raw_requestline = self.raw_requestline.replace(b"RTSP/1.0", b"HTTP/1.1")
r = http.server.BaseHTTPRequestHandler.parse_request(self)
self.protocol_version = "RTSP/1.0"
self.close_connection = 0
return r
def process_info(self, device_name):
self.logger.info('Process info called')
device_info["name"] = "TODO"
def send_response(self, code, message=None):
if message is None:
if code in self.responses:
message = self.responses[code][0]
else:
message = b''
response = f"{self.protocol_version} {code} {message}\r\n"
self.wfile.write(response.encode())
def version_string(self):
return f"AirTunes/{SERVER_VERSION}"
def do_GET(self):
self.dispatch()
def do_OPTIONS(self):
self.logger.debug(self.headers)
self.send_response(200)
self.send_header("Server", self.version_string())
self.send_header("CSeq", self.headers["CSeq"])
if "Apple-Challenge" in self.headers:
# Build Apple-Reponse
apple_response = AP1Security.compute_apple_response(self.headers["Apple-Challenge"], IPADDR_BIN, DEVICE_ID_BIN)
self.send_header("Apple-Jack-Status", "connected; type=analog")
self.send_header("Apple-Response", apple_response)
self.send_header("Public",
"ANNOUNCE, SETUP, RECORD, PAUSE, FLUSH"
"FLUSHBUFFERED, TEARDOWN, OPTIONS, POST, GET, PUT"
"SETPEERSX"
)
self.end_headers()
def do_ANNOUNCE(self):
# Enable Feature bit 12: Ft12FPSAPv2p5_AES_GCM: this uses only RSA
# Enabling Feat bit 25 and iTunes4win attempts AES - cannot yet decrypt.
self.logger.info(f'{self.command}: {self.path}')
self.logger.debug(self.headers)
if self.headers["Content-Type"] == 'application/sdp':
content_len = int(self.headers["Content-Length"])
if content_len > 0:
sdp_body = self.rfile.read(content_len).decode('utf-8')
self.logger.debug(sdp_body)
sdp = SDPHandler(sdp_body)
self.aud_params = sdp.params
if sdp.has_mfi:
self.logger.warning("MFi not possible on this hardware.")
self.send_response(404)
self.hap = None
else:
if(sdp.audio_format is SDPHandler.SDPAudioFormat.ALAC
and int((FEATURES & FeatureFlags.getFeature19ALAC(FeatureFlags))) == 0):
self.logger.warning("This receiver not configured for ALAC (set flag 19).")
self.send_response(404)
self.hap = None
elif (sdp.audio_format is SDPHandler.SDPAudioFormat.AAC
and int((FEATURES & FeatureFlags.getFeature20AAC(FeatureFlags))) == 0):
self.logger.warning("This receiver not configured for AAC (set flag 20).")
self.send_response(404)
self.hap = None
elif (sdp.audio_format is SDPHandler.SDPAudioFormat.AAC_ELD
and int((FEATURES & FeatureFlags.getFeature20AAC(FeatureFlags))) == 0):
self.logger.warning("This receiver not configured for AAC (set flag 20/21).")
self.send_response(404)
self.hap = None
else:
if sdp.has_fp and self.fairplay_keymsg:
self.logger.debug('Got FP AES Key from SDP')
self.aeskeyobj = FairPlayAES(fpaeskeyb64=sdp.aeskey, aesivb64=sdp.aesiv, keymsg=self.fairplay_keymsg)
elif sdp.has_rsa:
self.aeskeyobj = FairPlayAES(rsaaeskeyb64=sdp.aeskey, aesivb64=sdp.aesiv)
self.send_response(200)
self.send_header("Server", self.version_string())
self.send_header("CSeq", self.headers["CSeq"])
self.end_headers()
self.sdp = sdp
def do_FLUSHBUFFERED(self):
self.logger.info(f'{self.command}: {self.path}')
self.send_response(200)
self.send_header("Server", self.version_string())
self.send_header("CSeq", self.headers["CSeq"])
self.end_headers()
if self.headers["Content-Type"] == HTTP_CT_BPLIST:
content_len = int(self.headers["Content-Length"])
if content_len > 0:
body = self.rfile.read(content_len)
plist = readPlistFromString(body)
fr = 0
if "flushFromSeq" in plist:
fr = plist["flushFromSeq"]
if "flushUntilSeq" in plist:
to = plist["flushUntilSeq"]
try:
for s in self.server.streams:
if s.isAudio() and s.isInitialized():
s.getAudioConnection().send(f"flush_from_until_seq-{fr}-{to}")
except OSError as e:
self.logger.error(f'FLUSHBUFFERED error: {repr(e)}')
pass
self.logger.debug(self.pp.pformat(plist))
def do_POST(self):
self.dispatch()
def do_SETUP(self):
dacp_id = self.headers.get("DACP-ID")
active_remote = self.headers.get("Active-Remote")
ua = self.headers.get("User-Agent")
self.logger.info(f'{self.command}: {self.path}')
self.logger.debug(self.headers)
# Found in SETUP after ANNOUNCE:
if self.headers["Transport"]:
# self.logger.debug(self.headers["Transport"])
""" Run receiver with bit 13/14 and no bit 25, it's RSA in ANNOUNCE. Sender assumes you are an
airport with only 250msec buffer, so min/max are absent from SDP. FP2 is a solution. """
""" ct: 0x1 = PCM, 0x2 = ALAC, 0x4 = AAC_LC, 0x8 = AAC_ELD. largely implied by audioFormat """
# Set up a stream to receive.
stream = {
'audioFormat': self.sdp.AirplayAudFmt,
'latencyMin': int(self.sdp.audio_format_sr) // 4 if not self.sdp.minlatency else int(self.sdp.minlatency),
'latencyMax': int(self.sdp.audio_format_sr) * 2 if not self.sdp.maxlatency else int(self.sdp.maxlatency),
'ct': 0, # Compression Type(?)
'shk': self.aeskeyobj.aeskey,
'shiv': self.aeskeyobj.aesiv,
'spf': int(self.sdp.spf), # sample frames per pkt
'type': int(self.sdp.payload_type),
'controlPort': 0,
}
streamobj = Stream(
stream,
IPADDR,
buff_size=AIRPLAY_BUFFER,
stream_id=increase_stream_id(),
shared_key=self.ecdh_shared_key,
isDebug=DEBUG,
aud_params=self.aud_params
)
self.server.streams.append(streamobj)
if not self.server.event_proc:
self.server.event_port, self.server.event_proc = EventGeneric.spawn(
self.server.server_address, name='events', shared_key=self.ecdh_shared_key, isDebug=DEBUG)
if not self.server.timing_proc:
self.server.timing_port, self.server.timing_proc = EventGeneric.spawn(
self.server.server_address, name='ntp', shared_key=self.ecdh_shared_key, isDebug=DEBUG)
transport = self.headers["Transport"].split(';')
res = []
res.append("RTP/AVP/UDP")
res.append("unicast")
res.append("mode=record")
ctl_msg = f"control_port={streamobj.getControlPort()}"
res.append(ctl_msg)
self.logger.debug(ctl_msg)
data_msg = f"server_port={streamobj.getDataPort()}"
res.append(data_msg)
self.logger.debug(data_msg)
ntp_msg = f"timing_port={self.server.timing_port}"
res.append(ntp_msg)
self.logger.debug(ntp_msg)
string = ';'
self.send_response(200)
self.send_header("Transport", string.join(res))
self.send_header("Session", "1")
self.send_header("Audio-Jack-Status", 'connected; type=analog')
self.send_header("Server", self.version_string())
self.send_header("CSeq", self.headers["CSeq"])
self.end_headers()
self.logger.info('')
# Send flag that we're active
update_status_flags(StatusFlags.getRecvSessActive(StatusFlags), on=True)
return
if self.headers["Content-Type"] == HTTP_CT_BPLIST:
content_len = int(self.headers["Content-Length"])
if content_len > 0:
body = self.rfile.read(content_len)
plist = readPlistFromString(body)
self.logger.debug(self.pp.pformat(plist))
if not self.session:
""" Only set up session first time at connection """
self.session = Session(plist, self.fairplay_keymsg)
if "streams" not in plist:
self.logger.debug("Sending EVENT:")
self.server.event_port, self.server.event_proc = EventGeneric.spawn(
self.server.server_address, name='events', shared_key=self.ecdh_shared_key, isDebug=DEBUG)
device_setup["eventPort"] = self.server.event_port
self.logger.debug(f"[+] eventPort={self.server.event_port}")
self.logger.debug(self.pp.pformat(device_setup))
res = writePlistToString(device_setup)
self.send_response(200)
self.send_header("Content-Length", len(res))
self.send_header("Content-Type", HTTP_CT_BPLIST)
self.send_header("Server", self.version_string())
self.send_header("CSeq", self.headers["CSeq"])
self.end_headers()
self.wfile.write(res)
self.logger.info('')
else:
for stream in plist["streams"]:
s = Stream(
stream,
IPADDR,
buff_size=AIRPLAY_BUFFER,
stream_id=increase_stream_id(),
shared_key=self.ecdh_shared_key,
isDebug=DEBUG,
)
self.logger.debug("Building stream channels:")
self.server.streams.append(s)
stream_setup_data["streams"].append(
s.descriptor
)
self.logger.debug(s.getSummaryMessage())
if s.getStreamType() == Stream.BUFFERED:
set_volume_pid(s.getControlProc().pid)
if s.getStreamType() == Stream.REALTIME:
set_volume_pid(s.getControlProc().pid)
self.logger.debug(self.pp.pformat(stream_setup_data))
res = writePlistToString(stream_setup_data)
self.send_response(200)
self.send_header("Content-Length", len(res))
self.send_header("Content-Type", HTTP_CT_BPLIST)
self.send_header("Server", self.version_string())
self.send_header("CSeq", self.headers["CSeq"])
self.end_headers()
self.wfile.write(res)
self.logger.info('')
# Send flag that we're active
update_status_flags(StatusFlags.getRecvSessActive(StatusFlags), on=True)
return
self.send_error(404)
self.logger.info('')
def do_GET_PARAMETER(self):
self.logger.info(f'{self.command}: {self.path}')
self.logger.debug(self.headers)
params_res = {}
content_len = int(self.headers["Content-Length"])
if content_len > 0:
body = self.rfile.read(content_len)
params = body.splitlines()
for p in params:
if p == b"volume":
self.logger.info(f"GET_PARAMETER: {p}")
if not DISABLE_VM:
params_res[p] = str(get_volume()).encode()
else:
self.logger.warning("Volume Management is disabled")
else:
self.logger.info(f"Ops GET_PARAMETER: {p}")
if DISABLE_VM:
res = b"volume: 0" + b"\r\n"
else:
res = b"\r\n".join(b"%s: %s" % (k, v) for k, v in params_res.items()) + b"\r\n"
self.send_response(200)
self.send_header("Content-Length", len(res))
self.send_header("Content-Type", HTTP_CT_PARAM)
self.send_header("Server", self.version_string())
self.send_header("CSeq", self.headers["CSeq"])
self.end_headers()
self.wfile.write(res)
hexdump(res) if DEBUG else ''
def do_SET_PARAMETER(self):
self.logger.info(f'{self.command}: {self.path}')
self.logger.debug(self.headers)
params_res = {}
content_type = self.headers["Content-Type"]
content_len = int(self.headers["Content-Length"])
if content_type == HTTP_CT_PARAM:
if content_len > 0:
body = self.rfile.read(content_len)
params = body.splitlines()
for p in params:
pp = p.split(b":")
if pp[0] == b"volume":
self.logger.info(f"SET_PARAMETER: {pp[0]} => {pp[1]}")
if not DISABLE_VM:
set_volume(float(pp[1]))
else:
self.logger.warning("Volume Management is disabled")
elif pp[0] == b"progress":
# startTimeStamp, currentTimeStamp, stopTimeStamp
try:
for s in self.server.streams:
s.getAudioConnection().send(f"progress-{pp[1].decode('utf8').lstrip(' ')}")
except OSError as e:
self.logger.error(f'SET_PARAMETER error: {repr(e)}')
self.logger.info(f"SET_PARAMETER: {pp[0]} => {pp[1]}")
# else:
# self.logger.info(f"Ops SET_PARAMETER: {p}")
elif content_type.startswith(HTTP_CT_IMAGE):
if content_len > 0:
body = self.rfile.read(content_len)
"""
fname = None
with tempfile.NamedTemporaryFile(prefix="artwork", dir=".", delete=False, suffix=".jpg") as f:
f.write(self.rfile.read(content_len))
fname = f.name
self.logger.info(f"Artwork saved to {fname}")
"""
elif content_type == HTTP_CT_DMAP:
if content_len > 0:
self.logger.info(parse_dxxp(self.rfile.read(content_len)))
self.send_response(200)
self.send_header("Server", self.version_string())
self.send_header("CSeq", self.headers["CSeq"])
self.end_headers()
def do_RECORD(self):
self.logger.info(f'{self.command}: {self.path}')
self.logger.debug(self.headers)
if self.headers["Content-Type"] == HTTP_CT_BPLIST:
content_len = int(self.headers["Content-Length"])
if content_len > 0:
body = self.rfile.read(content_len)
plist = readPlistFromString(body)
self.logger.info(self.pp.pformat(plist))
self.send_response(200)
self.send_header("Server", self.version_string())
self.send_header("CSeq", self.headers["CSeq"])
# TODO: get actual playout latency
self.send_header("Audio-Latency", "0")
self.end_headers()
def do_SETRATEANCHORTIME(self):
self.logger.info(f'{self.command}: {self.path}')
self.logger.debug(self.headers)
if self.headers["Content-Type"] == HTTP_CT_BPLIST:
content_len = int(self.headers["Content-Length"])
try:
if content_len > 0:
body = self.rfile.read(content_len)
plist = readPlistFromString(body)
try: # Sending thru a pipe, check for pipe related errors
if plist["rate"] == 1:
for s in self.server.streams:
if s.isAudio() and s.isInitialized():
s.getAudioConnection().send(f"play-{plist['rtpTime']}")
if plist["rate"] == 0:
for s in self.server.streams:
if s.isAudio() and s.isInitialized():
s.getAudioConnection().send("pause")
except OSError:
self.logger.error(f'SETRATEANCHORTIME error: {repr(e)}')
self.logger.info(self.pp.pformat(plist))
except IndexError:
# Fixes some disconnects
self.logger.error('Cannot process request; streams torn down already.')
self.send_response(200)
self.send_header("Server", self.version_string())
self.send_header("CSeq", self.headers["CSeq"])
self.end_headers()
def do_TEARDOWN(self):
self.logger.info(f'{self.command}: {self.path}')
self.logger.debug(self.headers)
if self.headers["Content-Type"] == HTTP_CT_BPLIST:
content_len = int(self.headers["Content-Length"])
if content_len > 0:
body = self.rfile.read(content_len)
plist = readPlistFromString(body)
if "streams" in plist:
for s in plist["streams"]:
stream_id = s["streamID"]
stream_type = s["type"]
if len(self.server.streams) > 0:
for st in self.server.streams:
if stream_type == st.getStreamType() and stream_id == st.getStreamID():
st.teardown()
# Stream cull: build new list of non culled streams
self.server.streams[:] = [s for s in self.server.streams if not s.isCulled()]
self.logger.info(self.pp.pformat(plist))
if plist == {} and len(self.server.streams) == 0:
self.server.event_proc.terminate()
self.send_response(200)
self.send_header("Server", self.version_string())
self.send_header("CSeq", self.headers["CSeq"])
self.end_headers()
# Send flag that we're no longer active
update_status_flags(StatusFlags.getRecvSessActive(StatusFlags))
def do_SETPEERS(self):
"""
A shorter format to set timing (PTP clock) peers.
Content-Type: /peer-list-changed
Contains [] array of IP{4|6}addrs:
['...::...',
'...::...',
'...']
"""
self.logger.info(f'{self.command}: {self.path}')
self.logger.debug(self.headers)
content_len = int(self.headers["Content-Length"])
if content_len > 0:
body = self.rfile.read(content_len)
plist = readPlistFromString(body)
self.logger.info(self.pp.pformat(plist))
self.send_response(200)
self.send_header("Server", self.version_string())
self.send_header("CSeq", self.headers["CSeq"])
self.end_headers()
def do_SETPEERSX(self):
# Extended format for setting timing (PTP clock) peers
# Requires Ft52PeersExtMsg (bit 52)
# Note: this method does not require defining in do_OPTIONS
# Content-Type: /peer-list-changed-x
# Contains [] array of:
# {'Addresses': ['fe80::...',
# '...'],
# 'ClockID': 000000000000000000,
# 'ClockPorts': {GUID1: port,
# GUID2: port,
# GUIDN: port},
# 'DeviceType': 0,
# 'ID': GUID,
# 'SupportsClockPortMatchingOverride': T/F}
# SETPEERSX may require more logic when PTP is finished.
self.logger.info(f'{self.command}: {self.path}')
self.logger.debug(self.headers)
content_len = int(self.headers["Content-Length"])
if content_len > 0:
body = self.rfile.read(content_len)
plist = readPlistFromString(body)
self.logger.info(self.pp.pformat(plist))
self.send_response(200)
self.send_header("Server", self.version_string())
self.send_header("CSeq", self.headers["CSeq"])
self.end_headers()
def do_FLUSH(self):
self.logger.info(f'{self.command}: {self.path}')
self.logger.debug(self.headers)
if "RTP-Info" in self.headers:
rtp_info = self.headers["RTP-Info"]
seq, rtptime = rtp_info.split(';')
seq = seq.split('=')[1]
rtptime = rtptime.split('=')[1]
try:
for s in self.server.streams:
s.getAudioConnection().send(f"flush_seq_rtptime-{seq}-{rtptime}")
except OSError as e:
self.logger.error(f'FLUSH error: {repr(e)}')
self.send_response(200)
self.send_header("Server", self.version_string())
self.send_header("CSeq", self.headers["CSeq"])
self.end_headers()
def handle_command(self):
if self.headers["Content-Type"] == HTTP_CT_BPLIST:
content_len = int(self.headers["Content-Length"])
if content_len > 0:
body = self.rfile.read(content_len)
plist = readPlistFromString(body)
newin = []
if "mrSupportedCommandsFromSender" in plist["params"]:
for p in plist["params"]["mrSupportedCommandsFromSender"]:
iplist = readPlistFromString(p)
newin.append(iplist)
plist["params"]["mrSupportedCommandsFromSender"] = newin
if "params" in plist["params"] and "kMRMediaRemoteNowPlayingInfoArtworkData" in plist["params"]["params"]:
plist["params"]["params"]["kMRMediaRemoteNowPlayingInfoArtworkData"] = "<redacted ..too long>"
# don't print this massive blob - one day we may use it though.
# self.logger.debug(plist) # self.logger.info(self.pp.pformat(plist))
self.send_response(200)
self.send_header("Server", self.version_string())
self.send_header("CSeq", self.headers["CSeq"])
self.end_headers()
def handle_feedback(self):
self.handle_generic(feedback=True)
def handle_audiomode(self):
self.handle_generic()
def handle_generic(self, feedback=False):
if self.headers["Content-Type"] == HTTP_CT_BPLIST:
content_len = int(self.headers["Content-Length"])
if content_len > 0:
body = self.rfile.read(content_len)
plist = readPlistFromString(body)
self.logger.info(self.pp.pformat(plist))
self.send_response(200)
self.send_header("Server", self.version_string())
self.send_header("CSeq", self.headers["CSeq"])
if feedback:
if len(self.server.streams) > 0:
stream_data = {'streams': []}
for s in self.server.streams:
stream_data['streams'].append(s.getDescriptor())
else:
stream_data = {}
# self.logger.debug(stream_data)
res = writePlistToString(stream_data)
self.send_header("Content-Length", len(res))
self.send_header("Content-Type", HTTP_CT_BPLIST)
self.end_headers()
if feedback:
self.wfile.write(res)
def handle_auth_setup(self):
self.handle_X_setup('auth')
def handle_fp_setup(self):
self.handle_X_setup('fp')
def handle_X_setup(self, op: str = ''):
response = b''
content_len = int(self.headers["Content-Length"])
if content_len > 0:
# This is the session fairplay_keymsg (168 bytes long)
self.fairplay_keymsg = body = self.rfile.read(content_len)
if op == 'fp':
pf = PlayFair()
pf_info = PlayFair.fairplay_s()
response = pf.fairplay_setup(pf_info, body)
if op == 'auth':
try:
plist = readPlistFromString(body)
self.logger.info(self.pp.pformat(plist))
except InvalidPlistException as e:
# Use flags: 00088200405f4200 or -ftxor 51
self.logger.error('Unhandled edge-case encrypted setup')
self.send_response(404)
return
if 'X-Apple-AT' in self.headers and self.headers["X-Apple-AT"] == '16':
"""
Use flags: 144037111597568 / 0x830040DF0A00 or -ftxor 23 (RSA)
triggers: {'ascm': 1, 'tkrd': ['pair', 'auth', 'uuid']}
"""
self.logger.error('Unhandled edge-case for unencrypted auth setup')
if response:
self.send_response(200)
self.send_header("Content-Length", len(response))
self.send_header("Server", self.version_string())
self.send_header("CSeq", self.headers["CSeq"])
self.end_headers()
if op == 'fp':
self.wfile.write(response)
else:
self.logger.error('Unhandled edge-case: FairPlay 2 encryption not supported.')
self.send_error(101)
return
def handle_pair_pin_start(self):
""" Should probably set the PIN status flag to 'on' here. """
if not self.hap:
self.hap = Hap(PI, DEBUG)
self.send_response(200)
self.send_header("Server", self.version_string())
self.send_header("CSeq", self.headers["CSeq"])
self.end_headers()
def handle_pair_setup(self):
self.handle_pair_SV('setup')
def handle_pair_verify(self):
self.handle_pair_SV('verify')
def handle_pair_SV(self, op):
body = self.rfile.read(int(self.headers["Content-Length"]))
if not self.hap:
self.hap = Hap(PI, DEBUG)
if op == 'verify':
res = self.hap.pair_verify(body)
elif op == 'setup':
res = self.hap.pair_setup(body)
self.send_response(200)