Get NTRIP mountpoints or SOURCETABLE using Python

get-ntrip-source-table.py

#!/usr/bin/env python

#******************************
# get-ntrip-source-table.py
#
# Get a NTRP server's SOURCETABLE mount points
#
# Verify host and port using wget or curl
# `
# curl --http0.9 rtgpsout.unavco.org:2101
# curl --http0.9 ok.smartnetna.com:10000
#
# wget ok.smartnetna.com:10000
# cat index.html
#
# wget -q -S -O - ok.smartnetna.com:10000
# SOURCETABLE 200 OK
# Server: GNSS Spider 7.8.0.9445/1.0
# Date: Mon, 05 Dec 2022 17:03:50 GMT
# Content-Type: text/plain
# Content-Length: 1109
#
# STR;RTCM3_IMAX;RTCM3_IMAX;RTCM 3;;2;GPS+GLO;SmartNet North America;;41.26;-96.14;1;0;Leica GNSS Spider;none;B;Y;9600;
# STR;RTCM3_ViRS;RTCM3_ViRS;RTCM 3;;2;GPS+GLO;SmartNet North America;;41.26;-96.14;1;1;Leica GNSS Spider;none;B;Y;9600;
# STR;RTCM3_MAX;RTCM3_MAX;RTCM 3;;2;GPS+GLO;SmartNet North America;;41.26;-96.14;1;1;Leica GNSS Spider;none;B;Y;9600;
# STR;RTCM2_DGPS_IMAX;RTCM2_DGPS_IMAX;RTCM 2;;2;GPS;SmartNet North America;;41.26;-96.14;1;0;Leica GNSS Spider;none;B;Y;9600;
# STR;MSM_VIRS;MSM_VIRS;RTCM 3;;2;GPS+GLO+GAL+BDS;SmartNet North America;;41.26;-96.14;1;1;Leica GNSS Spider;none;B;Y;9600;
# STR;MSM_IMAX;MSM_IMAX;RTCM 3;;2;GPS+GLO+GAL+BDS;SmartNet North America;;41.26;-96.14;1;0;Leica GNSS Spider;none;B;Y;9600;
# STR;RTCM3_NEAR;RTCM3_NEAR;RTCM 3;;2;GPS+GLO;SmartNet North America;;41.26;-96.14;1;0;Leica GNSS Spider;none;B;Y;9600;
# STR;RTCM2_DGPS_NEAR;RTCM2_DGPS_NEAR;RTCM 2;;2;GPS;SmartNet North America;;41.26;-96.14;1;0;Leica GNSS Spider;none;B;Y;9600;
# STR;MSM_NEAR;MSM_NEAR;RTCM 3;;2;GPS+GLO+GAL+BDS;SmartNet North America;;41.26;-96.14;1;0;Leica GNSS Spider;none;B;Y;9600;
# `
#
#################################
# Get SOURCETABLE from an NTRIP server to discover mount points.
#
# Example:
#
# GET / HTTP/1.0
# Host: ok.smartnetna.com:10000
# User-Agent: MyAppName
# Accept: */*
#
#
# SOURCETABLE 200 OK
# Server: GNSS Spider 7.2.1.7804/1.0
# Date: Wed, 05 Dec 2018 20:55:04 GMT Standard Time
# Content-Type: text/plain
# Content-Length: 1101
#
# STR;RTCM3_IMAX;RTCM3_IMAX;RTCM 3;;2;GPS & GLO;SmartNet North America;;41.26;-96.14;1;0;Leica GNSS Spider;none;B;Y;9600;
# STR;RTCM3_ViRS;RTCM3_ViRS;RTCM 3;;2;GPS & GLO;SmartNet North America;;41.26;-96.14;1;1;Leica GNSS Spider;none;B;Y;9600;
# STR;RTCM3_NEAR;RTCM3_NEAR;RTCM 3;;2;GPS & GLO;SmartNet North America;;41.26;-96.14;1;0;Leica GNSS Spider;none;B;Y;9600;
# STR;RTCM3_MAX;RTCM3_MAX;RTCM 3;;2;GPS & GLO;SmartNet North America;;41.26;-96.14;1;1;Leica GNSS Spider;none;B;Y;9600;
# STR;RTCM2_DGPS_IMAX;RTCM2_DGPS_IMAX;RTCM 2;;2;GPS;SmartNet North America;;41.26;-96.14;1;0;Leica GNSS Spider;none;B;Y;9600;
# STR;RTCM2_DGPS_NEAR;RTCM2_DGPS_NEAR;RTCM 2;;2;GPS;SmartNet North America;;41.26;-96.14;1;0;Leica GNSS Spider;none;B;Y;9600;
# STR;MSM_NEAR;MSM_NEAR;RTCM 3;;2;GPS+GLO+GAL+BDS;SmartNet North America;;41.26;-96.14;1;0;Leica GNSS Spider;none;B;Y;9600;
# STR;MSM_VIRS;MSM_VIRS;RTCM 3;;2;GPS+GLO+GAL+BDS;SmartNet North America;;41.26;-96.14;1;1;Leica GNSS Spider;none;B;Y;9600;
# STR;MSM_IMAX;MSM_IMAX;RTCM 3;;2;GPS+GLO+GAL+BDS;SmartNet North America;;41.26;-96.14;1;0;Leica GNSS Spider;none;B;Y;9600;
# ENDSOURCETABLE
#################################
import socket

UserAgent = 'MyAppName'

# ok.smartnetna.com is commercial
# https://www.smartnetna.com/
Server = 'ok.smartnetna.com'
Port = 10000
Station = 'RTCM3_NEAR'

# rtgpsout.unavco.org is free but requires registration to us
# SOURCETABLE returns hundreds of NTRIP mount points
# http://www.unavco.org/instrumentation/networks/status/all/realtime
# Server = 'rtgpsout.unavco.org'
# Port = 2101
# Station = 'WMOK_RTCM3'


client_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server_address = (Server, Port)
client_socket.connect(server_address)

request_header = ('GET / HTTP/1.0\r\n' +
                'Host: %s:%s\r\n' +
                'User-Agent: %s\r\n' +
                'Accept: */*\r\n' +
                '\r\n') % (Server, Port, UserAgent)

print("**********************")
print("*  request_header    *")
print("**********************")
print(request_header)

request_header = bytes(request_header, encoding='utf-8')
client_socket.send(request_header)

# A large SOURCETABLE will arrive in multiple packets
response = b''
while True:
    recv = client_socket.recv(1024)
    if not recv:
        break
    response += recv 

print("**********************")
print("*     response       *")
print("**********************")

# response contains a bunch of '\r\n' terminated lines
response = str(response, 'UTF-8')
print (response)
client_socket.close()    

Include curl example to get SOURCETABLE in comments