Dispatcharr/apps/proxy/ts_proxy/utils.py

112 lines
No EOL
3.3 KiB
Python

import logging
import re
from urllib.parse import urlparse
import inspect
logger = logging.getLogger("ts_proxy")
def detect_stream_type(url):
"""
Detect if stream URL is HLS, RTSP/RTP, or TS format.
Args:
url (str): The stream URL to analyze
Returns:
str: 'hls', 'rtsp', or 'ts' depending on detected format
"""
if not url:
return 'unknown'
url_lower = url.lower()
# Check for RTSP/RTP streams first (requires FFmpeg)
if url_lower.startswith('rtsp://') or url_lower.startswith('rtp://'):
return 'rtsp'
# Look for common HLS indicators
if (url_lower.endswith('.m3u8') or
'.m3u8?' in url_lower or
'/playlist.m3u' in url_lower):
return 'hls'
# Additional HLS patterns
parsed = urlparse(url)
path = parsed.path.lower()
if ('playlist' in path and ('.m3u' in path or '.m3u8' in path)) or \
('manifest' in path and ('.m3u' in path or '.m3u8' in path)) or \
('master' in path and ('.m3u' in path or '.m3u8' in path)):
return 'hls'
# Default to TS
return 'ts'
def get_client_ip(request):
"""
Extract client IP address from request.
Handles cases where request is behind a proxy by checking X-Forwarded-For.
"""
x_forwarded_for = request.META.get('HTTP_X_FORWARDED_FOR')
if x_forwarded_for:
ip = x_forwarded_for.split(',')[0]
else:
ip = request.META.get('REMOTE_ADDR')
return ip
def create_ts_packet(packet_type='null', message=None):
"""
Create a Transport Stream (TS) packet for various purposes.
Args:
packet_type (str): Type of packet - 'null', 'error', 'keepalive', etc.
message (str): Optional message to include in packet payload
Returns:
bytes: A properly formatted 188-byte TS packet
"""
packet = bytearray(188)
# TS packet header
packet[0] = 0x47 # Sync byte
# PID - Use different PIDs based on packet type
if packet_type == 'error':
packet[1] = 0x1F # PID high bits
packet[2] = 0xFF # PID low bits
else: # null/keepalive packets
packet[1] = 0x1F # PID high bits (null packet)
packet[2] = 0xFF # PID low bits (null packet)
# Add message to payload if provided
if message:
msg_bytes = message.encode('utf-8')
packet[4:4+min(len(msg_bytes), 180)] = msg_bytes[:180]
return bytes(packet)
def get_logger(component_name=None):
"""
Get a standardized logger with ts_proxy prefix and optional component name.
Args:
component_name (str, optional): Name of the component. If not provided,
will try to detect from the calling module.
Returns:
logging.Logger: A configured logger with standardized naming.
"""
if component_name:
logger_name = f"ts_proxy.{component_name}"
else:
# Try to get the calling module name if not explicitly specified
frame = inspect.currentframe().f_back
module = inspect.getmodule(frame)
if module:
# Extract just the filename without extension
module_name = module.__name__.split('.')[-1]
logger_name = f"ts_proxy.{module_name}"
else:
# Default if detection fails
logger_name = "ts_proxy"
return logging.getLogger(logger_name)