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import json
from optparse import OptionParser, OptionGroup
from multiprocessing import Process
import requests
from pcilib_api_server import ApiServer
#import flask elements
from flask import render_template
from flask import Flask
from flask import request
from flask import url_for
from flask import redirect
from flask import send_from_directory
from flask import make_response
app = Flask(__name__)
api_server_port = 9000
api_server_host = '0.0.0.0'
@app.route("/json/<command>")
def process_json_command(command):
headers = {'content-type': 'application/json'}
message = {'command': command}
for arg in request.args:
message[arg] = request.args[arg]
r = 0;
try:
r = requests.get('http://' + api_server_host + ':' + str(api_server_port),
data=json.dumps(message),
headers=headers)
except Exception as e:
return str(json.dumps({'status':'error', 'description': e}))
#application/octet-stream
response = make_response(r.content)
for header in r.headers:
response.headers[header] = r.headers[header]
return response
#html api
@app.route('/register_info')
def get_register_info():
#get parameters
name = request.args.get('name')
bank = request.args.get('bank')
#load register info
reg_info = 0
value = dict()
try:
r = requests.get(url_for('process_json_command',
command = 'get_register_info',
bank = bank,
reg = name, _external = True))
if(r.json().get('status') == 'error'):
return 'Error: ' + r.json()['description']
reg_info = r.json()['register']
#get register value
r = requests.get(url_for('process_json_command',
command = 'read_register',
bank = bank,
reg = name, _external = True))
if(r.json().get('status') == 'error'):
return 'Error: ' + r.json()['description']
value[name] = r.json()['value']
except Exception as e:
return str(e)
return render_template('register_info.html',
register=reg_info,
value=value)
@app.route("/registers_list")
def get_registers_list():
#get parameters
bank = request.args.get('bank')
if not bank is None:
bank = str(bank)
#load registers list
reg_list = []
try:
r = requests.get(url_for('process_json_command',
command = 'get_registers_list',
bank = bank, _external = True))
if(r.json().get('status') == 'error'):
return 'Error: ' + r.json()['description']
reg_list = r.json()['registers']
except Exception as e:
return str(e)
#get register values
value = dict()
for reg in reg_list:
try:
r = requests.get(url_for('process_json_command',
command = 'read_register',
bank = str(reg['bank']),
reg = str(reg['name']), _external = True))
if(r.json().get('status') == 'error'):
value[reg['name']] = 'Error: ' + r.json()['description']
else:
value[reg['name']] = r.json()['value']
except Exception as e:
value[reg['name']] = 'Error: ' + str(e)
#render result
return render_template('registers_list.html',
registers = reg_list,
render_template = render_template,
value = value
)
@app.route("/property_info")
def get_property_list():
#get parameters
branch = request.args.get('branch')
if not branch is None:
branch = str(branch)
#get properties info
prop_info = 0
try:
r = requests.get(url_for('process_json_command',
command = 'get_property_list',
branch = branch, _external = True))
if(r.json().get('status') == 'error'):
return 'Error: ' + r.json()['description']
prop_info = r.json()['properties']
except Exception as e:
return str(e)
value = dict()
for prop in prop_info:
try:
path = prop['path']
r = requests.get(url_for('process_json_command',
command = 'get_property',
prop = path, _external = True))
if(r.json().get('status') == 'error'):
value[path] = 'Error: ' + r.json()['description']
else:
value[path] = r.json()['value']
except Exception as e:
value[path] = str(e)
return render_template('property_info.html',
value = value,
branch = branch,
properties = prop_info
)
@app.route("/scripts_info")
def get_scripts_list():
#get properties info
prop_info = 0
try:
r = requests.get(url_for('process_json_command',
command = 'get_scripts_list',
_external = True))
if(r.json().get('status') == 'error'):
return 'Error: ' + r.json()['description']
scripts_info = r.json()['scripts']
except Exception as e:
return str(e)
return render_template('scripts_info.html',
scripts = scripts_info
)
@app.route("/")
def greet():
return render_template('base.html',
device = device,
model = model)
if __name__ == "__main__":
#parse command line options
parser = OptionParser()
parser.add_option("-p", "--port", action="store",
type="int", dest="port", default=5000,
help="Set server port (5000)")
pcilib_group = OptionGroup(parser, "Api server",
"Api server options group")
pcilib_group.add_option("-e", "--external", action="store_true",
dest="external_api_server",
default=False,
help="Dont start own api server. Use external"
" server instead");
pcilib_group.add_option("--api-server-host", action="store",
type="string", dest="api_server_host",
default='0.0.0.0',
help="Api server ip adress (0.0.0.0)")
pcilib_group.add_option("--api-server-port", action="store",
type="int", dest="api_server_port",
default=9000,
help="Api server port (9000)")
pcilib_group.add_option("-d", "--device", action="store",
type="string", dest="device",
default=str('/dev/fpga0'),
help="FPGA device (/dev/fpga0)")
pcilib_group.add_option("-m", "--model", action="store",
type="string", dest="model", default=None,
help="Memory model (autodetected)")
parser.add_option_group(pcilib_group)
opts = parser.parse_args()[0]
HOST_NAME = '0.0.0.0'
PORT_NUMBER = opts.port
device = opts.device
model = opts.model
#start api server in separate process
api_server_host = opts.api_server_host
api_server_port = opts.api_server_port
if(not opts.external_api_server):
api_server = ApiServer(device, model, (api_server_host, api_server_port))
def serve_forever(server):
try:
server.serve_forever()
except KeyboardInterrupt:
pass
Process(target=serve_forever, args=(api_server,)).start()
#start Flask html server
app.run(host = HOST_NAME,
port = PORT_NUMBER,
threaded=True,
#debug=True
)
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