590 lines
22 KiB
Python
Executable File
590 lines
22 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright 2017, 2018, 2019, 2020 Max H. Parke KA1RBI
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#
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# This file is part of OP25
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#
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# OP25 is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3, or (at your option)
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# any later version.
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#
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# OP25 is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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# License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with OP25; see the file COPYING. If not, write to the Free
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# Software Foundation, Inc., 51 Franklin Street, Boston, MA
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# 02110-1301, USA.
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import sys
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import os
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import time
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import re
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import json
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import socket
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import traceback
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import threading
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import glob
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import subprocess
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import zmq
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import op25
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from gnuradio import gr
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from waitress.server import create_server
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from optparse import OptionParser
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from multi_rx import byteify
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from tsvfile import load_tsv, make_config
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import logging
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logging.basicConfig()
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my_input_q = None
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my_output_q = None
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my_recv_q = None
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my_port = None
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my_backend = None
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CFG_DIR = '../www/config/'
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TSV_DIR = './'
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"""
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fake http and ajax server module
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TODO: make less fake
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"""
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def ensure_str(s): # for python 2/3
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if isinstance(s[0], str):
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return s
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ns = ''
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for i in range(len(s)):
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ns += chr(s[i])
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return ns
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class event_iterator:
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def __iter__(self):
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return self
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def __next__(self):
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_jslog_file = None # set to str(filename) to enable json log
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msgs = []
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while True:
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msg = my_input_q.delete_head()
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assert msg.type() == -4
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d = json.loads(msg.to_string())
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msgs.append(d)
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if my_input_q.empty_p():
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break
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js = json.dumps(msgs)
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# TODO: json.loads followed by dumps is redundant -
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# can this be optimized?
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s = 'data:%s\r\n\r\n' % (js)
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if _jslog_file:
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t = json.dumps(msgs, indent=4, separators=[',',':'], sort_keys=True)
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with open(_jslog_file, 'a') as logfd:
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logfd.write('%s\n' % t)
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if sys.version[0] != '2':
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if isinstance(s, str):
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s = s.encode()
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return s
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next = __next__ # for python2
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def static_file(environ, start_response):
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content_types = {'tsv': 'text/tab-separated-values', 'json': 'application/json', 'png': 'image/png', 'jpeg': 'image/jpeg', 'jpg': 'image/jpeg', 'gif': 'image/gif', 'css': 'text/css', 'js': 'application/javascript', 'html': 'text/html', 'ico': 'image/vnd.microsoft.icon'}
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img_types = 'png jpg jpeg gif ico'.split()
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data_types = 'tsv txt json db'.split()
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if environ['PATH_INFO'] == '/':
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filename = 'index.html'
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else:
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filename = re.sub(r'[^a-zA-Z0-9_.\-/]', '', environ['PATH_INFO'])
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suf = filename.split('.')[-1]
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pathname = '../www/www-static'
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if suf in img_types:
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pathname = '../www/images'
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elif suf in data_types:
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pathname = TSV_DIR
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pathname = '%s/%s' % (pathname, filename)
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if suf not in content_types.keys() or '..' in filename or not os.access(pathname, os.R_OK):
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sys.stderr.write('404 %s\n' % pathname)
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status = '404 NOT FOUND - PATHNAME: %s FILENAME: %s CWD: %s' % (pathname, filename, os. getcwd())
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content_type = 'text/plain'
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output = status
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else:
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output = open(pathname, 'rb').read()
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content_type = content_types[suf]
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status = '200 OK'
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return status, content_type, output
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def valid_tsv(filename):
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if not os.access(filename, os.R_OK):
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return False
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line = open(filename).readline()
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for word in 'Sysname Offset NAC Modulation TGID Whitelist Blacklist'.split():
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if word not in line:
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return False
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return True
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def tsv_config(filename):
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DEFAULT_CFG = '../www/config/default.json'
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filename = '%s%s' % (TSV_DIR, filename)
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filename = filename.replace('[TSV]', '.tsv')
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if not valid_tsv(filename):
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return None
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cfg = make_config(load_tsv(filename))
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default_cfg = json.loads(open(DEFAULT_CFG).read())
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result = default_cfg
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channels = [ {'active': True,
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'blacklist': cfg[nac]['blacklist'],
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'whitelist': cfg[nac]['whitelist'],
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'cclist': cfg[nac]['cclist'],
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'demod_type': 'cqpsk',
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'destination': 'udp://127.0.0.1:23456',
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'filter_type': 'rc',
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'frequency': 500000000,
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'if_rate': 24000,
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'nac': nac,
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'name': cfg[nac]['sysname'],
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'phase2_tdma': False,
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'plot': "",
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'tgids': cfg[nac]['tgid_map'],
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'trunked': True
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}
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for nac in cfg.keys() ]
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result['channels'] = channels
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return {'json_type':'config_data', 'data': result}
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def do_request(d):
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global my_backend
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if d['command'].startswith('rx-'):
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msg = gr.message().make_from_string(json.dumps(d), -2, 0, 0)
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if not my_backend.input_q.full_p():
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my_backend.input_q.insert_tail(msg)
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return None
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elif d['command'] == 'config-load':
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if '[TSV]' in d['data']:
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return tsv_config(d['data'])
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filename = '%s%s.json' % (CFG_DIR, d['data'])
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if not os.access(filename, os.R_OK):
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return None
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js_msg = json.loads(open(filename).read())
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return {'json_type':'config_data', 'data': js_msg}
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elif d['command'] == 'config-list':
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files = glob.glob('%s*.json' % CFG_DIR)
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files = [x.replace('.json', '') for x in files]
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files = [x.replace(CFG_DIR, '') for x in files]
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if d['data'] == 'tsv':
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tsvfiles = glob.glob('%s*.tsv' % TSV_DIR)
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tsvfiles = [x for x in tsvfiles if valid_tsv(x)]
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tsvfiles = [x.replace('.tsv', '[TSV]') for x in tsvfiles]
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tsvfiles = [x.replace(TSV_DIR, '') for x in tsvfiles]
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files += tsvfiles
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return {'json_type':'config_list', 'data': files}
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elif d['command'] == 'config-save':
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name = d['data']['name']
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if '..' in name or '.json' in name or '/' in name:
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return None
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filename = '%s%s.json' % (CFG_DIR, d['data']['name'])
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open(filename, 'w').write(json.dumps(d['data']['value'], indent=4, separators=[',',':'], sort_keys=True))
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return None
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elif d['command'] == 'config-savesettings':
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filename = 'ui-settings.json'
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open(filename, 'w').write(d['data'])
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sys.stderr.write('saved UI settings to %s\n' % filename)
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return None
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elif d['command'] == 'config-tsvsave':
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filename = d['file']
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ok = True
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if filename.lower().endswith('tsv'):
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ok = True
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elif filename.lower().endswith('json'):
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ok = True
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else:
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ok = False
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if filename.startswith('.'):
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ok = False
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if '/' in filename:
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ok = False
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if '..' in filename:
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ok = False
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if not ok:
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sys.stderr.write('cfg-tsvsave: invalid filename %s\n' % filename)
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return None
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open(filename, 'w').write(d['data'])
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sys.stderr.write('saved UI settings to %s\n' % filename)
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return None
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def post_req(environ, start_response, postdata):
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global my_input_q, my_output_q, my_recv_q, my_port
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resp_msg = []
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data = []
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try:
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data = json.loads(postdata)
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except:
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sys.stderr.write('post_req: error processing input: %s:\n' % (postdata))
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traceback.print_exc(limit=None, file=sys.stderr)
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sys.stderr.write('*** end traceback ***\n')
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for d in data:
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if type(d) is str:
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sys.stderr.write('%f possible json sequence error: len %d type %s value %s\n' % (time.time(), len(d), type(d), d))
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continue
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elif type(d) is not dict:
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sys.stderr.write('%f possible json sequence error: type %s value %s\n' % (time.time(), type(d), d))
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continue
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if d['command'].startswith('config-') or d['command'].startswith('rx-'):
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resp = do_request(d)
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if resp:
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resp_msg.append(resp)
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continue
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if d['command'].startswith('settings-'):
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msg = gr.message().make_from_string(json.dumps(d), -4, 0, 0)
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else:
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msg = gr.message().make_from_string(str(d['command']), -2, d['data'], 0)
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if my_output_q.full_p():
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my_output_q.delete_head_nowait() # ignores result
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if not my_output_q.full_p():
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my_output_q.insert_tail(msg)
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time.sleep(0.2)
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status = '200 OK'
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content_type = 'application/json'
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output = json.dumps(resp_msg)
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return status, content_type, output
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def http_request(environ, start_response):
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if environ['REQUEST_METHOD'] == 'GET' and '/stream' in environ['PATH_INFO']:
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status = '200 OK'
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content_type = 'text/event-stream'
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response_headers = [('Content-type', content_type),
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('Access-Control-Allow-Origin', '*')]
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start_response(status, response_headers)
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return iter(event_iterator())
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elif environ['REQUEST_METHOD'] == 'GET':
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status, content_type, output = static_file(environ, start_response)
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elif environ['REQUEST_METHOD'] == 'POST':
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postdata = environ['wsgi.input'].read()
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status, content_type, output = post_req(environ, start_response, postdata)
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else:
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status = '200 OK'
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content_type = 'text/plain'
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output = status
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sys.stderr.write('http_request: unexpected input %s\n' % environ['PATH_INFO'])
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response_headers = [('Content-type', content_type),
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('Access-Control-Allow-Origin', '*'),
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('Content-Length', str(len(output)))]
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start_response(status, response_headers)
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if sys.version[0] != '2':
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if isinstance(output, str):
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output = output.encode()
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return [output]
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def application(environ, start_response):
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failed = False
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try:
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result = http_request(environ, start_response)
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except:
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failed = True
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sys.stderr.write('application: request failed:\n%s\n' % traceback.format_exc())
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if failed:
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status = '500 Internal Server Error'
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response_headers = [ ('Access-Control-Allow-Origin', '*') ]
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start_response(status, response_headers)
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output = status
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if sys.version[0] != '2':
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if isinstance(output, str):
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output = output.encode()
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return [output]
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return result
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def process_qmsg(msg):
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if my_recv_q.full_p():
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my_recv_q.delete_head_nowait() # ignores result
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if my_recv_q.full_p():
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return
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my_recv_q.insert_tail(msg)
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class http_server(object):
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def __init__(self, input_q, output_q, endpoint, **kwds):
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global my_input_q, my_output_q, my_recv_q, my_port
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host, port = endpoint.split(':')
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if my_port is not None:
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raise AssertionError('this server is already active on port %s' % my_port)
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my_input_q = input_q
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my_output_q = output_q
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my_port = int(port)
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my_recv_q = gr.msg_queue(10)
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SEND_BYTES = 1024
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NTHREADS = 10 # TODO: make #threads a function of #plots ?
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self.server = create_server(application, host=host, port=my_port, send_bytes=SEND_BYTES, expose_tracebacks=True, threads=NTHREADS)
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def run(self):
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self.server.run()
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class queue_watcher(threading.Thread):
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def __init__(self, msgq, callback, **kwds):
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threading.Thread.__init__ (self, **kwds)
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self.setDaemon(1)
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self.msgq = msgq
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self.callback = callback
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self.keep_running = True
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self.start()
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def run(self):
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while(self.keep_running):
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msg = self.msgq.delete_head()
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self.callback(msg)
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class Backend(threading.Thread):
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def __init__(self, options, input_q, output_q, init_config=None, **kwds):
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threading.Thread.__init__ (self, **kwds)
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self.setDaemon(1)
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self.keep_running = True
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self.rx_options = None
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self.input_q = input_q
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self.output_q = output_q
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self.verbosity = options.verbosity
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self.zmq_context = zmq.Context()
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self.zmq_port = options.zmq_port
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self.zmq_sub = self.zmq_context.socket(zmq.SUB)
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self.zmq_sub.connect('tcp://localhost:%d' % self.zmq_port)
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self.zmq_sub.setsockopt_string(zmq.SUBSCRIBE, '')
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self.zmq_pub = self.zmq_context.socket(zmq.PUB)
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self.zmq_pub.sndhwm = 5
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self.zmq_pub.bind('tcp://*:%d' % (self.zmq_port+1))
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self.start()
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self.subproc = None
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self.msg = None
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self.q_watcher = queue_watcher(self.input_q, self.process_msg)
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if init_config:
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d = {'command': 'rx-start', 'data': init_config}
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msg = gr.message().make_from_string(json.dumps(d), -4, 0, 0)
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self.input_q.insert_tail(msg)
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def publish(self, msg):
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t = msg.type()
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s = msg.to_string()
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a = msg.arg1()
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s = ensure_str(s)
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self.zmq_pub.send_string(json.dumps({'command': s, 'data': a, 'msgtype': t}))
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def check_subproc(self): # return True if subprocess is active
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if not self.subproc:
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return False
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rc = self.subproc.poll()
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if rc is None:
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return True
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else:
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self.subproc.wait()
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self.subproc = None
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return False
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def process_msg(self, msg):
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def make_command(options, config_file):
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py_exe = 'python'
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if sys.version[0] == '3':
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py_exe = 'python3'
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trunked_ct = [True for x in options._js_config['channels'] if x['trunked']]
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total_ct = [True for x in options._js_config['channels']]
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if trunked_ct and len(trunked_ct) != len(total_ct):
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self.msg = 'no suitable backend found for this configuration'
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return None
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if not trunked_ct:
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self.backend = '%s/%s' % (os.getcwd(), 'multi_rx.py')
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opts = [py_exe, self.backend]
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filename = '%s%s.json' % (CFG_DIR, config_file)
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opts.append('--config-file')
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opts.append(filename)
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return opts
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# TODO: this probably should be external and/or configurable
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# these options must match up one for one with the rx.py cli opts
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types = {'costas-alpha': 'float',
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'trunk-conf-file': 'str',
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'demod-type': 'str',
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'logfile-workers': 'int',
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'decim-amt': 'int',
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'wireshark-host': 'str',
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'gain-mu': 'float',
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'phase2-tdma': 'bool',
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'seek': 'int',
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'ifile': 'str',
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'pause': 'bool',
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'antenna': 'str',
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'calibration': 'float',
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'fine-tune': 'float',
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'raw-symbols': 'str',
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'audio-output': 'str',
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'vocoder': 'bool',
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'input': 'str',
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'wireshark': 'bool',
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'gains': 'str',
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'args': 'str',
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'sample-rate': 'int',
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'terminal-type': 'str',
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'gain': 'float',
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'excess-bw': 'float',
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'offset': 'float',
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'audio-input': 'str',
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'audio': 'bool',
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'plot-mode': 'str',
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'audio-if': 'bool',
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'tone-detect': 'bool',
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'frequency': 'int',
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'freq-corr': 'float',
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'hamlib-model': 'int',
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'udp-player': 'bool',
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'verbosity': 'int',
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'audio-gain': 'float',
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'freq-error-tracking': 'bool',
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'nocrypt': 'bool',
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'wireshark-port': 'int'
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}
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self.backend = '%s/%s' % (os.getcwd(), 'rx.py')
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opts = [py_exe, self.backend]
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for k in [ x for x in dir(options) if not x.startswith('_') ]:
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kw = k.replace('_', '-')
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val = getattr(options, k)
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if kw not in types.keys():
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self.msg = 'make_command: unknown option: %s %s type %s' % (k, val, type(val))
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return None
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elif types[kw] == 'str':
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if val:
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opts.append('--%s' % kw)
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opts.append('%s' % (val))
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elif types[kw] == 'float':
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opts.append('--%s' % kw)
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if val:
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opts.append('%f' % (val))
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else:
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opts.append('%f' % (0))
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elif types[kw] == 'int':
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|
opts.append('--%s' % kw)
|
|
if val:
|
|
opts.append('%d' % (val))
|
|
else:
|
|
opts.append('%d' % (0))
|
|
elif types[kw] == 'bool':
|
|
if val:
|
|
opts.append('--%s' % kw)
|
|
else:
|
|
self.msg = 'make_command: unknown2 option: %s %s type %s' % (k, val, type(val))
|
|
return None
|
|
return opts
|
|
|
|
msg = json.loads(msg.to_string())
|
|
if msg['command'] == 'rx-start':
|
|
if self.check_subproc():
|
|
self.msg = 'start command failed: subprocess pid %d already active' % self.subproc.pid
|
|
return
|
|
options = rx_options(msg['data'])
|
|
if getattr(options, '_js_config', None) is None:
|
|
self.msg = 'start command failed: rx_options: unable to initialize config=%s' % (msg['data'])
|
|
return
|
|
options.verbosity = self.verbosity
|
|
options.terminal_type = 'zmq:tcp:%d' % (self.zmq_port)
|
|
cmd = make_command(options, msg['data'])
|
|
sys.stderr.write('executing %s\n' % (' '.join(cmd)))
|
|
if cmd:
|
|
self.subproc = subprocess.Popen(cmd)
|
|
elif msg['command'] == 'rx-stop':
|
|
if not self.check_subproc():
|
|
self.msg = 'stop command failed: subprocess not active'
|
|
return
|
|
if msg['data'] == 'kill':
|
|
self.subproc.kill()
|
|
else:
|
|
self.subproc.terminate()
|
|
elif msg['command'] == 'rx-state':
|
|
d = {}
|
|
if self.check_subproc():
|
|
d['rx-state'] = 'subprocess pid %d active' % self.subproc.pid
|
|
else:
|
|
d['rx-state'] = 'subprocess not active, last msg: %s' % self.msg
|
|
msg = gr.message().make_from_string(json.dumps(d), -4, 0, 0)
|
|
if not self.output_q.full_p():
|
|
self.output_q.insert_tail(msg)
|
|
|
|
def run(self):
|
|
while self.keep_running:
|
|
js = self.zmq_sub.recv()
|
|
if not self.keep_running:
|
|
break
|
|
js = ensure_str(js)
|
|
msg = gr.message().make_from_string(js, -4, 0, 0)
|
|
if not self.output_q.full_p():
|
|
self.output_q.insert_tail(msg)
|
|
|
|
class rx_options(object):
|
|
def __init__(self, name):
|
|
def map_name(k):
|
|
return k.replace('-', '_')
|
|
|
|
filename = '%s%s.json' % (CFG_DIR, name)
|
|
if not os.access(filename, os.R_OK):
|
|
sys.stderr.write('unable to access config file %s\n' % (filename))
|
|
return
|
|
config = byteify(json.loads(open(filename).read()))
|
|
dev = [x for x in config['devices'] if x['active']][0]
|
|
if not dev:
|
|
return
|
|
chan = [x for x in config['channels'] if x['active']][0]
|
|
if not chan:
|
|
return
|
|
options = object()
|
|
for k in config['backend-rx'].keys():
|
|
setattr(self, map_name(k), config['backend-rx'][k])
|
|
for k in 'args frequency gains offset'.split():
|
|
setattr(self, k, dev[k])
|
|
self.demod_type = chan['demod_type']
|
|
self.freq_corr = dev['ppm']
|
|
self.sample_rate = dev['rate']
|
|
self.plot_mode = chan['plot']
|
|
self.phase2_tdma = chan['phase2_tdma']
|
|
self.trunk_conf_file = filename
|
|
self._js_config = config
|
|
|
|
def http_main():
|
|
global my_backend
|
|
# command line argument parsing
|
|
parser = OptionParser()
|
|
parser.add_option("-c", "--config", type="string", default=None, help="config json name, without prefix/suffix")
|
|
parser.add_option("-e", "--endpoint", type="string", default="127.0.0.1:8080", help="address:port to listen on (use addr 0.0.0.0 to enable external clients)")
|
|
parser.add_option("-v", "--verbosity", type="int", default=0, help="message debug level")
|
|
parser.add_option("-p", "--pause", action="store_true", default=False, help="block on startup")
|
|
parser.add_option("-z", "--zmq-port", type="int", default=25000, help="backend sub port")
|
|
(options, args) = parser.parse_args()
|
|
|
|
# wait for gdb
|
|
if options.pause:
|
|
print ('Ready for GDB to attach (pid = %d)' % (os.getpid(),))
|
|
raw_input("Press 'Enter' to continue...")
|
|
|
|
input_q = gr.msg_queue(20)
|
|
output_q = gr.msg_queue(20)
|
|
backend_input_q = gr.msg_queue(20)
|
|
backend_output_q = gr.msg_queue(20)
|
|
|
|
my_backend = Backend(options, backend_input_q, backend_output_q, init_config=options.config)
|
|
server = http_server(input_q, output_q, options.endpoint)
|
|
q_watcher = queue_watcher(output_q, lambda msg : my_backend.publish(msg))
|
|
backend_q_watcher = queue_watcher(backend_output_q, lambda msg : process_qmsg(msg))
|
|
|
|
server.run()
|
|
|
|
if __name__ == '__main__':
|
|
http_main()
|