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utils.py
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utils.py
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from flask import request, Response
import os
import re
import json
from urllib.parse import unquote
import logging
from config import *
from datetime import datetime
import humanize
logging.basicConfig(filename=SERVER_LOG, filemode='a', level=logging.INFO)
log = logging.getLogger('werkzeug')
log.disabled = True
IP_CACHE_file = "ip_cache.json"
IP_CACHE_PATH = os.path.abspath(os.path.join(os.path.dirname(__file__), IP_CACHE_file))
video_types = ['mp4', 'flv', 'mov', 'avi', '3gp', 'mpg', 'm4v', 'wmv', 'mkv']
audio_types = ['mp3', "wav", "ogg", "mpeg", "aac", "3gpp", "3gpp2", "aiff", "x-aiff", "amr", "mpga"]
IP_CACHE = {}
try:
if os.path.exists(IP_CACHE_PATH):
with open(IP_CACHE_PATH) as f:
IP_CACHE = json.load(f)
except:
pass
def update_ip_cache():
global IP_CACHE
print("UPDATING IP CACHE", IP_CACHE.keys())
with open(IP_CACHE_PATH, "w") as f:
f.write(json.dumps(IP_CACHE))
def log(kind, ip, message = ""):
URI = request.environ.get('REQUEST_URI')
if (ip not in ("127.0.0.1", "192.168.1.2") and not ip.startswith("192.168.1.")) and not URI.startswith("/static/") and not URI.startswith("/admin/") and get_file_extension(URI) not in tp_dict["image"][0] and request.headers.get('Accept-Ranges') != "bytes" and URI not in ("/logs", "/favicon.ico"):
location_json = IP_CACHE.get(ip)
logline = f"[{kind}]," + "{},{},{},{},".format(datetime.now().strftime('%Y-%m-%d %H:%M:%S.%f'), ip, location_json["city"], location_json["country_name"]) + unquote(URI.replace(",","")) + "," + message
print(logline)
#SERVER_LOG.write(logline + "\n")
logging.info(logline)
def get_last_used(time):
time = datetime.strptime(time, '%Y-%m-%d %H:%M:%S.%f')
current_time = datetime.now()
return humanize.naturaltime(current_time - time)
def get_chunk(start_byte=None, end_byte=None, full_path=None):
file_size = os.stat(full_path).st_size
if end_byte:
length = end_byte + 1 - start_byte
else:
length = file_size - start_byte
with open(full_path, 'rb') as f:
f.seek(start_byte)
chunk = f.read(length)
return chunk, start_byte, length, file_size
def get_file(file_path, mimetype):
range_header = request.headers.get('Range', None)
start_byte, end_byte = 0, None
if range_header:
match = re.search(r'(\d+)-(\d*)', range_header)
groups = match.groups()
if groups[0]:
start_byte = int(groups[0])
if groups[1]:
end_byte = int(groups[1])
chunk, start, length, file_size = get_chunk(start_byte, end_byte, file_path)
resp = Response(chunk, 206, mimetype=f'video/{mimetype}',
content_type=mimetype, direct_passthrough=True)
print(length, start_byte, end_byte, file_size)
resp.headers.add('Content-Range', 'bytes {0}-{1}/{2}'.format(start, start + length - 1, file_size))
return resp
def get_video_chunk(filename, byte1=None, byte2=None):
filesize = os.path.getsize(filename)
yielded = 0
yield_size = 1024 * 1024
if byte1 is not None:
if not byte2:
byte2 = filesize
yielded = byte1
filesize = byte2
with open(filename, 'rb') as f:
content = f.read()
while True:
remaining = filesize - yielded
if yielded == filesize:
break
if remaining >= yield_size:
yield content[yielded:yielded+yield_size]
yielded += yield_size
else:
yield content[yielded:yielded+remaining]
yielded += remaining
def get_video_file(filename, mimetype):
filesize = os.path.getsize(filename)
range_header = request.headers.get('Range', None)
print("RANGE HEADER", range_header)
if range_header:
byte1, byte2 = None, None
match = re.search(r'(\d+)-(\d*)', range_header)
groups = match.groups()
if groups[0]:
byte1 = int(groups[0])
if groups[1]:
byte2 = int(groups[1])
if not byte2:
byte2 = byte1 + 1024 * 1024
if byte2 > filesize:
byte2 = filesize
length = byte2 + 1 - byte1
resp = Response(
get_chunk(filename, byte1, byte2),
status=206, mimetype='video/mp4',
content_type='video/mp4',
direct_passthrough=True
)
resp.headers.add('Content-Range',
'bytes {0}-{1}/{2}'
.format(byte1,
length,
filesize))
return resp
return Response(
get_video_chunk(filename),
status=200, mimetype='video/mp4'
)
def is_media(filepath):
found_media = re.search("\.mp4$|\.mp3$", filepath, re.IGNORECASE)
if found_media:
extension = found_media[0].lower()[1:]
if found_media in video_types:
return f"video/{extension}"
return f"audio/{extension}"
return False
def is_movie(filepath):
found_media = re.search("\.mkv$", filepath, re.IGNORECASE)
if found_media:
return f"video/mp4"
return False
def get_file_extension(fname):
found_extension = re.search("\.[A-Za-z0-9]*$", fname, re.IGNORECASE)
if found_extension:
return found_extension[0][1:].lower()