epicyon/daemon_head.py

142 lines
5.7 KiB
Python

__filename__ = "daemon_head.py"
__author__ = "Bob Mottram"
__license__ = "AGPL3+"
__version__ = "1.5.0"
__maintainer__ = "Bob Mottram"
__email__ = "bob@libreserver.org"
__status__ = "Production"
__module_group__ = "Core"
import os
import datetime
from hashlib import md5
from utils import media_file_mime_type
from utils import data_dir
from utils import is_image_file
from utils import string_contains
from utils import decoded_host
from utils import check_bad_path
from httpcodes import http_400
from httpcodes import http_404
from httpheaders import set_headers_head
from media import path_is_video
from media import path_is_audio
def daemon_http_head(self) -> None:
""" HTTP HEAD
"""
if self.server.starting_daemon:
return
if check_bad_path(self.path):
http_400(self)
return
calling_domain = self.server.domain_full
if self.headers.get('Host'):
calling_domain = decoded_host(self.headers['Host'])
if self.server.onion_domain:
if calling_domain not in (self.server.domain,
self.server.domain_full,
self.server.onion_domain):
print('HEAD domain blocked: ' + calling_domain)
http_400(self)
return
else:
if calling_domain not in (self.server.domain,
self.server.domain_full):
print('HEAD domain blocked: ' + calling_domain)
http_400(self)
return
check_path = self.path
etag = None
file_length = -1
last_modified_time_str = None
if string_contains(self.path,
('/media/', '/accounts/avatars/',
'/accounts/headers/')):
if is_image_file(self.path) or \
path_is_video(self.path) or \
path_is_audio(self.path):
if '/media/' in self.path:
media_str = self.path.split('/media/')[1]
media_filename = \
self.server.base_dir + '/media/' + media_str
elif '/accounts/avatars/' in self.path:
avatar_file = self.path.split('/accounts/avatars/')[1]
if '/' not in avatar_file:
http_404(self, 149)
return
nickname = avatar_file.split('/')[0]
avatar_file = avatar_file.split('/')[1]
avatar_file_ext = avatar_file.split('.')[-1]
# remove any numbers, eg. avatar123.png becomes avatar.png
if avatar_file.startswith('avatar'):
avatar_file = 'avatar.' + avatar_file_ext
media_filename = \
data_dir(self.server.base_dir) + '/' + \
nickname + '@' + self.server.domain + '/' + \
avatar_file
else:
banner_file = self.path.split('/accounts/headers/')[1]
if '/' not in banner_file:
http_404(self, 150)
return
nickname = banner_file.split('/')[0]
banner_file = banner_file.split('/')[1]
banner_file_ext = banner_file.split('.')[-1]
# remove any numbers, eg. banner123.png becomes banner.png
if banner_file.startswith('banner'):
banner_file = 'banner.' + banner_file_ext
media_filename = \
data_dir(self.server.base_dir) + '/' + \
nickname + '@' + self.server.domain + '/' + \
banner_file
if os.path.isfile(media_filename):
check_path = media_filename
file_length = os.path.getsize(media_filename)
media_tm = os.path.getmtime(media_filename)
last_modified_time = \
datetime.datetime.fromtimestamp(media_tm,
datetime.timezone.utc)
time_format_str = '%a, %d %b %Y %H:%M:%S GMT'
last_modified_time_str = \
last_modified_time.strftime(time_format_str)
media_tag_filename = media_filename + '.etag'
if os.path.isfile(media_tag_filename):
try:
with open(media_tag_filename, 'r',
encoding='utf-8') as fp_efile:
etag = fp_efile.read()
except OSError:
print('EX: do_HEAD unable to read ' +
media_tag_filename)
else:
media_binary = None
try:
with open(media_filename, 'rb') as fp_av:
media_binary = fp_av.read()
except OSError:
print('EX: unable to read media binary ' +
media_filename)
if media_binary:
etag = md5(media_binary).hexdigest() # nosec
try:
with open(media_tag_filename, 'w+',
encoding='utf-8') as fp_efile:
fp_efile.write(etag)
except OSError:
print('EX: do_HEAD unable to write ' +
media_tag_filename)
else:
http_404(self, 151)
return
media_file_type = media_file_mime_type(check_path)
set_headers_head(self, media_file_type, file_length,
etag, calling_domain, False,
last_modified_time_str)