max
Max 5 years ago
parent 34d08d9255
commit d5ee60abf8
  1. 127
      op25/gr-op25_repeater/apps/http.py

@ -0,0 +1,127 @@
# Copyright 2017, 2018 Max H. Parke KA1RBI
#
# This file is part of OP25
#
# OP25 is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# OP25 is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
# License for more details.
#
# You should have received a copy of the GNU General Public License
# along with OP25; see the file COPYING. If not, write to the Free
# Software Foundation, Inc., 51 Franklin Street, Boston, MA
# 02110-1301, USA.
import sys
import os
import time
import re
import json
import socket
import traceback
from gnuradio import gr
from waitress.server import create_server
my_input_q = None
my_output_q = None
my_port = None
"""
fake http and ajax server module
TODO: make less fake
"""
def static_file(environ, start_response):
content_types = { 'png': 'image/png', 'jpeg': 'image/jpeg', 'jpg': 'image/jpeg', 'gif': 'image/gif', 'css': 'text/css', 'js': 'application/javascript', 'html': 'text/html'}
img_types = 'png jpg jpeg gif'.split()
if environ['PATH_INFO'] == '/':
filename = 'index.html'
else:
filename = re.sub(r'[^a-zA-Z0-9_.\-]', '', environ['PATH_INFO'])
suf = filename.split('.')[-1]
pathname = '../www/www-static'
if suf in img_types:
pathname = '../www/images'
pathname = '%s/%s' % (pathname, filename)
if suf not in content_types.keys() or '..' in filename or not os.access(pathname, os.R_OK):
sys.stderr.write('404 %s\n' % pathname)
status = '404 NOT FOUND'
content_type = 'text/plain'
output = status
else:
output = open(pathname).read()
content_type = content_types[suf]
status = '200 OK'
return status, content_type, output
def post_req(environ, start_response, postdata):
global my_input_q, my_output_q, my_port
try:
data = json.loads(postdata)
msg = gr.message().make_from_string(str(data['command']), -2, data['data'], 0)
my_output_q.insert_tail(msg)
time.sleep(0.2)
except:
sys.stderr.write('post_req: error processing input: %s:\n' % (postdata))
traceback.print_exc(limit=None, file=sys.stderr)
sys.stderr.write('*** end traceback ***\n')
resp_msg = []
while not my_input_q.empty_p():
msg = my_input_q.delete_head()
if msg.type() == -4:
resp_msg.append(json.loads(msg.to_string()))
status = '200 OK'
content_type = 'application/json'
output = json.dumps(resp_msg)
return status, content_type, output
def http_request(environ, start_response):
if environ['REQUEST_METHOD'] == 'GET':
status, content_type, output = static_file(environ, start_response)
elif environ['REQUEST_METHOD'] == 'POST':
postdata = environ['wsgi.input'].read()
status, content_type, output = post_req(environ, start_response, postdata)
else:
status = '200 OK'
content_type = 'text/plain'
output = status
sys.stderr.write('http_request: unexpected input %s\n' % environ['PATH_INFO'])
response_headers = [('Content-type', content_type),
('Content-Length', str(len(output)))]
start_response(status, response_headers)
return [output]
def application(environ, start_response):
failed = False
try:
result = http_request(environ, start_response)
except:
failed = True
sys.stderr.write('application: request failed:\n%s\n' % traceback.format_exc())
sys.exit(1)
return result
class http_server(object):
def __init__(self, input_q, output_q, endpoint, **kwds):
global my_input_q, my_output_q, my_port
host, port = endpoint.split(':')
if my_port is not None:
raise AssertionError('this server is already active on port %s' % my_port)
my_input_q = input_q
my_output_q = output_q
my_port = int(port)
self.server = create_server(application, host=host, port=my_port)
def run(self):
self.server.run()
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