OVMS3-idf/examples/protocols/http_server/persistent_sockets/scripts/adder.py

#!/usr/bin/env python
#
# Copyright 2018 Espressif Systems (Shanghai) PTE LTD
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from __future__ import print_function
from __future__ import unicode_literals
from builtins import str
from builtins import range
import http.client
import argparse
import Utility


def start_session(ip, port):
    return http.client.HTTPConnection(ip, int(port), timeout=15)


def end_session(conn):
    conn.close()


def getreq(conn, path, verbose=False):
    conn.request("GET", path)
    resp = conn.getresponse()
    data = resp.read()
    if verbose:
        Utility.console_log("GET : " + path)
        Utility.console_log("Status : " + resp.status)
        Utility.console_log("Reason : " + resp.reason)
        Utility.console_log("Data length  : " + str(len(data)))
        Utility.console_log("Data content : " + data)
    return data


def postreq(conn, path, data, verbose=False):
    conn.request("POST", path, data)
    resp = conn.getresponse()
    data = resp.read()
    if verbose:
        Utility.console_log("POST : " + data)
        Utility.console_log("Status : " + resp.status)
        Utility.console_log("Reason : " + resp.reason)
        Utility.console_log("Data length  : " + str(len(data)))
        Utility.console_log("Data content : " + data)
    return data


def putreq(conn, path, body, verbose=False):
    conn.request("PUT", path, body)
    resp = conn.getresponse()
    data = resp.read()
    if verbose:
        Utility.console_log("PUT : " + path, body)
        Utility.console_log("Status : " + resp.status)
        Utility.console_log("Reason : " + resp.reason)
        Utility.console_log("Data length  : " + str(len(data)))
        Utility.console_log("Data content : " + data)
    return data


if __name__ == '__main__':
    # Configure argument parser
    parser = argparse.ArgumentParser(description='Run HTTPd Test')
    parser.add_argument('IP',   metavar='IP',      type=str, help='Server IP')
    parser.add_argument('port', metavar='port',    type=str, help='Server port')
    parser.add_argument('N',    metavar='integer', type=int, help='Integer to sum upto')
    args = vars(parser.parse_args())

    # Get arguments
    ip   = args['IP']
    port = args['port']
    N    = args['N']

    # Establish HTTP connection
    Utility.console_log("Connecting to => " + ip + ":" + port)
    conn = start_session(ip, port)

    # Reset adder context to specified value(0)
    # -- Not needed as new connection will always
    # -- have zero value of the accumulator
    Utility.console_log("Reset the accumulator to 0")
    putreq(conn, "/adder", str(0))

    # Sum numbers from 1 to specified value(N)
    Utility.console_log("Summing numbers from 1 to " + str(N))
    for i in range(1, N + 1):
        postreq(conn, "/adder", str(i))

    # Fetch the result
    Utility.console_log("Result :" + getreq(conn, "/adder"))

    # Close HTTP connection
    end_session(conn)