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"""
MIT License
Copyright (C) 2023 ROCKY4546
https://github.com/rocky4546
This file is part of Cabernet
Permission is hereby granted, free of charge, to any person obtaining a copy of this software
and associated documentation files (the "Software"), to deal in the Software without restriction,
including without limitation the rights to use, copy, modify, merge, publish, distribute,
sublicense, and/or sell copies of the Software, and to permit persons to whom the Software
is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or
substantial portions of the Software.
"""
import importlib
import importlib.resources
import logging
import mimetypes
import pathlib
import platform
import re
import socket
import time
import urllib
import urllib.parse
from http.server import BaseHTTPRequestHandler
import lib.common.utils as utils
from lib.web.pages.templates import web_templates
from lib.config.config_defn import ConfigDefn
from lib.db.db_plugins import DBPlugins
from lib.db.db_channels import DBChannels
from lib.common.pickling import Pickling
from lib.plugins.plugin_handler import PluginHandler
class WebHTTPHandler(BaseHTTPRequestHandler):
plugins = None
hdhr_queue = None
terminate_queue = None
sched_queue = None
config = None
logger = None
channels_db = None
rmg_station_scans = {}
namespace_list = None
total_instances = 0
def log_message(self, _format, *args):
try:
if int(args[1]) > 399:
self.logger.warning('[%s] %s' % (self.address_string(), _format % args))
else:
self.logger.debug('[%s] %s' % (self.address_string(), _format % args))
except (IndexError, ValueError):
self.logger.error('[%s] %s' % (self.address_string(), _format % args))
def get_query_data(self):
content_path = self.path
query_data = {}
if self.headers.get('Content-Length') is not None \
and self.headers.get('Content-Length') != '0':
post_data = self.rfile.read(int(self.headers.get('Content-Length'))).decode('utf-8')
# if an input is empty, then it will remove it from the list when the dict is gen
query_data = urllib.parse.parse_qs(post_data, keep_blank_values=True)
for key, value in query_data.items():
if value[0] == '':
query_data[key] = [None]
if self.path.find('?') != -1:
content_path = self.path[0:self.path.find('?')]
get_data = self.path[(self.path.find('?') + 1):]
get_data_elements = get_data.split('&')
for get_data_item in get_data_elements:
get_data_item_split = get_data_item.split('=')
if len(get_data_item_split) > 1:
query_data[get_data_item_split[0]] = get_data_item_split[1]
if 'name' not in query_data:
query_data['name'] = None
if 'instance' not in query_data:
query_data['instance'] = None
if query_data['instance'] or query_data['name']:
return content_path, query_data
path_list = content_path.split('/')
if len(path_list) > 2:
instance = None
for ns in WebHTTPHandler.namespace_list:
if path_list[1].lower() == ns.lower():
namespace = ns
del path_list[1]
instance_list = WebHTTPHandler.namespace_list[namespace]
if len(path_list) > 2:
for inst in instance_list:
if inst.lower() == path_list[1].lower():
instance = inst
del path_list[1]
query_data['name'] = namespace
query_data['instance'] = instance
content_path = '/'.join(path_list)
break
return content_path, query_data
def do_file_response(self, _code, _package, _reply_file):
if _reply_file:
try:
if _package:
x = importlib.resources.read_binary(_package, _reply_file)
else:
# add security to prevent hacker paths
search_file = re.compile(r'^[A-Z]?[:]?([\\\/]([A-Za-z0-9_\-]+[\\\/])+[A-Za-z0-9\._\-]+$)')
valid_check = re.match(search_file, str(_reply_file))
if not valid_check:
self.logger.info('Invalid filepath {}'.format(_reply_file))
self.do_mime_response(404, 'text/html', web_templates['htmlError'].format('404 - Invalid File Path'))
return
x_path = pathlib.Path(str(_reply_file))
with open(x_path, 'br') as reader:
x = reader.read()
mime_lookup = mimetypes.guess_type(_reply_file)
self.send_response(_code)
self.send_header('Content-type', mime_lookup[0])
self.end_headers()
self.do_write(x)
except IsADirectoryError as e:
self.logger.info('IsADirectoryError:{}'.format(e))
self.do_mime_response(401, 'text/html', web_templates['htmlError'].format('401 - Unauthorized'))
except FileNotFoundError as e:
self.logger.info('FileNotFoundError:{}'.format(e))
self.do_mime_response(404, 'text/html', web_templates['htmlError'].format('404 - File Not Found'))
except NotADirectoryError as e:
self.logger.info('NotADirectoryError:{}'.format(e))
self.do_mime_response(404, 'text/html', web_templates['htmlError'].format('404 - Folder Not Found'))
except ConnectionAbortedError as e:
self.logger.info('ConnectionAbortedError:{}'.format(e))
except ModuleNotFoundError as e:
self.logger.info('ModuleNotFoundError:{}'.format(e))
self.do_mime_response(404, 'text/html', web_templates['htmlError'].format('404 - Module Not Found'))
def do_response(self, _code, _mime, _reply_str=None):
try:
self.send_response(_code)
self.send_header('Content-type', _mime)
self.end_headers()
except BrokenPipeError as ex:
self.logger.notice('BrokenPipeError on do_response(), ignoring {}'.format(str(ex)))
pass
if _reply_str:
self.do_write(_reply_str.encode('utf-8'))
def do_mime_response(self, _code, _mime, _reply_str=None):
self.do_dict_response({
'code': _code, 'headers': {'Content-type': _mime},
'text': _reply_str
})
def do_dict_response(self, rsp_dict):
"""
{ 'code': '[code]', 'headers': { '[name]': '[value]', ... }, 'text': b'...' }
"""
self.send_response(rsp_dict['code'])
for header, value in rsp_dict['headers'].items():
self.send_header(header, value)
self.end_headers()
if rsp_dict['text']:
self.do_write(rsp_dict['text'].encode('utf-8'))
def do_write(self, _data):
try:
self.wfile.write(_data)
except BrokenPipeError as ex:
self.logger.debug('Client dropped connection while writing, ignoring. {}'.format(ex))
@classmethod
def init_class_var_sub(cls, _plugins, _hdhr_queue, _terminate_queue, _sched_queue):
"""
Interface class
"""
pass
@classmethod
def init_class_var(cls, _plugins, _hdhr_queue, _terminate_queue):
WebHTTPHandler.logger = logging.getLogger(__name__)
WebHTTPHandler.config = _plugins.config_obj.data
if platform.system() in ['Windows']:
unpickle_it = Pickling(WebHTTPHandler.config)
_plugins = unpickle_it.from_pickle(_plugins.__class__.__name__)
PluginHandler.cls_plugins = _plugins.plugins
WebHTTPHandler.plugins = _plugins
WebHTTPHandler.hdhr_queue = _hdhr_queue
WebHTTPHandler.terminate_queue = _terminate_queue
if not cls.plugins.config_obj.defn_json:
cls.plugins.config_obj.defn_json = ConfigDefn(_config=_plugins.config_obj.data)
plugins_db = DBPlugins(_plugins.config_obj.data)
WebHTTPHandler.namespace_list = plugins_db.get_instances()
WebHTTPHandler.channels_db = DBChannels(_plugins.config_obj.data)
tmp_rmg_scans = {}
for plugin_name in _plugins.plugins.keys():
if plugin_name:
if _plugins.config_obj.data.get(plugin_name.lower()):
if 'player-tuner_count' in _plugins.config_obj.data[plugin_name.lower()]:
tmp_rmg_scans[plugin_name] = []
for x in range(int(_plugins.config_obj.data[plugin_name.lower()]['player-tuner_count'])):
tmp_rmg_scans[plugin_name].append('Idle')
WebHTTPHandler.rmg_station_scans = tmp_rmg_scans
if WebHTTPHandler.total_instances == 0:
WebHTTPHandler.total_instances = _plugins.config_obj.data['web']['concurrent_listeners']
@classmethod
def start_httpserver(cls, _plugins, _hdhr_queue, _terminate_queue, _port, _http_server_class, _sched_queue=None):
server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
i = 3
while True:
try:
server_socket.bind((_plugins.config_obj.data['web']['bind_ip'], _port))
break
except OSError:
time.sleep(3)
i -= 1
if i < 1:
raise
server_socket.listen(int(_plugins.config_obj.data['web']['concurrent_listeners']))
utils.logging_setup(_plugins.config_obj.data)
logger = logging.getLogger(__name__)
cls.init_class_var_sub(_plugins, _hdhr_queue, _terminate_queue, _sched_queue)
if cls.total_instances == 0:
_plugins.config_obj.data['web']['concurrent_listeners']
logger.info(
'{} Now listening for requests. Number of listeners={}'
.format(cls.__name__, cls.total_instances))
for i in range(cls.total_instances):
_http_server_class(server_socket, _plugins)
try:
while True:
time.sleep(3600)
except KeyboardInterrupt:
pass
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