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1793dba64f7f8b755c163b41bccacc4944d65e3c
postgsail/initdb/02_3_3_signalk_public_functions_py.sql

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PL/PgSQL
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---------------------------------------------------------------------------
-- singalk db public schema
--
-- List current database
select current_database();
-- connect to the DB
\c signalk
CREATE SCHEMA IF NOT EXISTS public;
---------------------------------------------------------------------------
-- python reverse_geocode
--
-- https://github.com/CartoDB/labs-postgresql/blob/master/workshop/plpython.md
--
DROP FUNCTION IF EXISTS reverse_geocode_py_fn;
CREATE OR REPLACE FUNCTION reverse_geocode_py_fn(IN geocoder TEXT, IN lon NUMERIC, IN lat NUMERIC,
OUT geo jsonb)
AS $reverse_geocode_py$
import requests
# Use the shared cache to avoid preparing the geocoder metadata
if geocoder in SD:
plan = SD[geocoder]
# A prepared statement from Python
else:
plan = plpy.prepare("SELECT reverse_url AS url FROM geocoders WHERE name = $1", ["text"])
SD[geocoder] = plan
# Execute the statement with the geocoder param and limit to 1 result
rv = plpy.execute(plan, [geocoder], 1)
url = rv[0]['url']
# Validate input
if not lon or not lat:
plpy.notice('reverse_geocode_py_fn Parameters [{}] [{}]'.format(lon, lat))
plpy.error('Error missing parameters')
return None
# Make the request to the geocoder API
# https://operations.osmfoundation.org/policies/nominatim/
payload = {"lon": lon, "lat": lat, "format": "jsonv2", "zoom": 18}
r = requests.get(url, params=payload)
# Parse response
# Option1: If name is null fallback to address field road,neighbourhood,suburb
# Option2: Return the json for future reference like country
if r.status_code == 200 and "name" in r.json():
r_dict = r.json()
#plpy.notice('reverse_geocode_py_fn Parameters [{}] [{}] Response'.format(lon, lat, r_dict))
output = None
country_code = None
if "country_code" in r_dict["address"] and r_dict["address"]["country_code"]:
country_code = r_dict["address"]["country_code"]
if r_dict["name"]:
return { "name": r_dict["name"], "country_code": country_code }
elif "address" in r_dict and r_dict["address"]:
if "road" in r_dict["address"] and r_dict["address"]["road"]:
return { "name": r_dict["address"]["road"], "country_code": country_code }
elif "neighbourhood" in r_dict["address"] and r_dict["address"]["neighbourhood"]:
return { "name": r_dict["address"]["neighbourhood"], "country_code": country_code }
elif "suburb" in r_dict["address"] and r_dict["address"]["suburb"]:
return { "name": r_dict["address"]["suburb"], "country_code": country_code }
elif "residential" in r_dict["address"] and r_dict["address"]["residential"]:
return { "name": r_dict["address"]["residential"], "country_code": country_code }
elif "village" in r_dict["address"] and r_dict["address"]["village"]:
return { "name": r_dict["address"]["village"], "country_code": country_code }
elif "town" in r_dict["address"] and r_dict["address"]["town"]:
return { "name": r_dict["address"]["town"], "country_code": country_code }
else:
return { "name": "n/a", "country_code": country_code }
else:
return { "name": "n/a", "country_code": country_code }
else:
plpy.warning('Failed to received a geo full address %s', r.json())
#plpy.error('Failed to received a geo full address %s', r.json())
return { "name": "unknown", "country_code": country_code }
$reverse_geocode_py$ TRANSFORM FOR TYPE jsonb LANGUAGE plpython3u;
-- Description
COMMENT ON FUNCTION
public.reverse_geocode_py_fn
IS 'query reverse geo service to return location name using plpython3u';
---------------------------------------------------------------------------
-- python send email
--
-- https://www.programcreek.com/python/example/3684/email.utils.formatdate
DROP FUNCTION IF EXISTS send_email_py_fn;
CREATE OR REPLACE FUNCTION send_email_py_fn(IN email_type TEXT, IN _user JSONB, IN app JSONB) RETURNS void
AS $send_email_py$
# Import smtplib for the actual sending function
import smtplib
# Import the email modules we need
#from email.message import EmailMessage
from email.utils import formatdate,make_msgid
from email.mime.text import MIMEText
# Use the shared cache to avoid preparing the email metadata
if email_type in SD:
plan = SD[email_type]
# A prepared statement from Python
else:
plan = plpy.prepare("SELECT * FROM email_templates WHERE name = $1", ["text"])
SD[email_type] = plan
# Execute the statement with the email_type param and limit to 1 result
rv = plpy.execute(plan, [email_type], 1)
email_subject = rv[0]['email_subject']
email_content = rv[0]['email_content']
# Replace fields using input jsonb obj
if not _user or not app:
plpy.notice('send_email_py_fn Parameters [{}] [{}]'.format(_user, app))
plpy.error('Error missing parameters')
return None
if 'logbook_name' in _user and _user['logbook_name']:
email_content = email_content.replace('__LOGBOOK_NAME__', _user['logbook_name'])
if 'logbook_link' in _user and _user['logbook_link']:
email_content = email_content.replace('__LOGBOOK_LINK__', str(_user['logbook_link']))
if 'recipient' in _user and _user['recipient']:
email_content = email_content.replace('__RECIPIENT__', _user['recipient'])
if 'boat' in _user and _user['boat']:
email_content = email_content.replace('__BOAT__', _user['boat'])
if 'badge' in _user and _user['badge']:
email_content = email_content.replace('__BADGE_NAME__', _user['badge'])
if 'otp_code' in _user and _user['otp_code']:
email_content = email_content.replace('__OTP_CODE__', _user['otp_code'])
if 'reset_qs' in _user and _user['reset_qs']:
email_content = email_content.replace('__RESET_QS__', _user['reset_qs'])
if 'app.url' in app and app['app.url']:
email_content = email_content.replace('__APP_URL__', app['app.url'])
email_from = 'root@localhost'
if 'app.email_from' in app and app['app.email_from']:
email_from = 'PostgSail <' + app['app.email_from'] + '>'
#plpy.notice('Sending email from [{}] [{}]'.format(email_from, app['app.email_from']))
email_to = 'root@localhost'
if 'email' in _user and _user['email']:
email_to = _user['email']
#plpy.notice('Sending email to [{}] [{}]'.format(email_to, _user['email']))
else:
plpy.error('Error email to')
return None
msg = MIMEText(email_content, 'plain', 'utf-8')
msg["Subject"] = email_subject
msg["From"] = email_from
msg["To"] = email_to
msg["Date"] = formatdate()
msg["Message-ID"] = make_msgid()
server_smtp = 'localhost'
if 'app.email_server' in app and app['app.email_server']:
server_smtp = app['app.email_server']
#plpy.notice('Sending server [{}] [{}]'.format(server_smtp, app['app.email_server']))
# Send the message via our own SMTP server.
try:
# send your message with credentials specified above
with smtplib.SMTP(server_smtp, 587) as server:
if 'app.email_user' in app and app['app.email_user'] \
and 'app.email_pass' in app and app['app.email_pass']:
server.starttls()
server.login(app['app.email_user'], app['app.email_pass'])
#server.send_message(msg)
server.sendmail(msg["From"], msg["To"], msg.as_string())
server.quit()
# tell the script to report if your message was sent or which errors need to be fixed
plpy.notice('Sent email successfully to [{}] [{}]'.format(msg["To"], msg["Subject"]))
return None
except OSError as error:
plpy.error('OS Error occurred: ' + str(error))
except smtplib.SMTPConnectError:
plpy.error('Failed to connect to the server. Bad connection settings?')
except smtplib.SMTPServerDisconnected:
plpy.error('Failed to connect to the server. Wrong user/password?')
except smtplib.SMTPException as e:
plpy.error('SMTP error occurred: ' + str(e))
$send_email_py$ TRANSFORM FOR TYPE jsonb LANGUAGE plpython3u;
-- Description
COMMENT ON FUNCTION
public.send_email_py_fn
IS 'Send email notification using plpython3u';
---------------------------------------------------------------------------
-- python send pushover message
-- https://pushover.net/
DROP FUNCTION IF EXISTS send_pushover_py_fn;
CREATE OR REPLACE FUNCTION send_pushover_py_fn(IN message_type TEXT, IN _user JSONB, IN app JSONB) RETURNS void
AS $send_pushover_py$
import requests
# Use the shared cache to avoid preparing the email metadata
if message_type in SD:
plan = SD[message_type]
# A prepared statement from Python
else:
plan = plpy.prepare("SELECT * FROM email_templates WHERE name = $1", ["text"])
SD[message_type] = plan
# Execute the statement with the message_type param and limit to 1 result
rv = plpy.execute(plan, [message_type], 1)
pushover_title = rv[0]['pushover_title']
pushover_message = rv[0]['pushover_message']
# Replace fields using input jsonb obj
if 'logbook_name' in _user and _user['logbook_name']:
pushover_message = pushover_message.replace('__LOGBOOK_NAME__', _user['logbook_name'])
if 'logbook_link' in _user and _user['logbook_link']:
pushover_message = pushover_message.replace('__LOGBOOK_LINK__', str(_user['logbook_link']))
if 'recipient' in _user and _user['recipient']:
pushover_message = pushover_message.replace('__RECIPIENT__', _user['recipient'])
if 'boat' in _user and _user['boat']:
pushover_message = pushover_message.replace('__BOAT__', _user['boat'])
if 'badge' in _user and _user['badge']:
pushover_message = pushover_message.replace('__BADGE_NAME__', _user['badge'])
if 'app.url' in app and app['app.url']:
pushover_message = pushover_message.replace('__APP_URL__', app['app.url'])
pushover_token = None
if 'app.pushover_app_token' in app and app['app.pushover_app_token']:
pushover_token = app['app.pushover_app_token']
else:
plpy.error('Error no pushover token defined, check app settings')
return None
pushover_user = None
if 'pushover_user_key' in _user and _user['pushover_user_key']:
pushover_user = _user['pushover_user_key']
else:
plpy.error('Error no pushover user token defined, check user settings')
return None
# requests
r = requests.post("https://api.pushover.net/1/messages.json", data = {
"token": pushover_token,
"user": pushover_user,
"title": pushover_title,
"message": pushover_message
})
#print(r.text)
# Return ?? or None if not found
#plpy.notice('Sent pushover successfully to [{}] [{}]'.format(r.text, r.status_code))
if r.status_code == 200:
plpy.notice('Sent pushover successfully to [{}] [{}] [{}]'.format(pushover_user, pushover_title, r.text))
else:
plpy.error('Failed to send pushover')
return None
$send_pushover_py$ TRANSFORM FOR TYPE jsonb LANGUAGE plpython3u;
-- Description
COMMENT ON FUNCTION
public.send_pushover_py_fn
IS 'Send pushover notification using plpython3u';
---------------------------------------------------------------------------
-- python send telegram message
-- https://core.telegram.org/
DROP FUNCTION IF EXISTS send_telegram_py_fn;
CREATE OR REPLACE FUNCTION send_telegram_py_fn(IN message_type TEXT, IN _user JSONB, IN app JSONB) RETURNS void
AS $send_telegram_py$
"""
Send a message to a telegram user or group specified on chatId
chat_id must be a number!
"""
import requests
import json
# Use the shared cache to avoid preparing the email metadata
if message_type in SD:
plan = SD[message_type]
# A prepared statement from Python
else:
plan = plpy.prepare("SELECT * FROM email_templates WHERE name = $1", ["text"])
SD[message_type] = plan
# Execute the statement with the message_type param and limit to 1 result
rv = plpy.execute(plan, [message_type], 1)
telegram_title = rv[0]['pushover_title']
telegram_message = rv[0]['pushover_message']
# Replace fields using input jsonb obj
if 'logbook_name' in _user and _user['logbook_name']:
telegram_message = telegram_message.replace('__LOGBOOK_NAME__', _user['logbook_name'])
if 'logbook_link' in _user and _user['logbook_link']:
telegram_message = telegram_message.replace('__LOGBOOK_LINK__', str(_user['logbook_link']))
if 'recipient' in _user and _user['recipient']:
telegram_message = telegram_message.replace('__RECIPIENT__', _user['recipient'])
if 'boat' in _user and _user['boat']:
telegram_message = telegram_message.replace('__BOAT__', _user['boat'])
if 'badge' in _user and _user['badge']:
telegram_message = telegram_message.replace('__BADGE_NAME__', _user['badge'])
if 'app.url' in app and app['app.url']:
telegram_message = telegram_message.replace('__APP_URL__', app['app.url'])
telegram_token = None
if 'app.telegram_bot_token' in app and app['app.telegram_bot_token']:
telegram_token = app['app.telegram_bot_token']
else:
plpy.error('Error no telegram token defined, check app settings')
return None
telegram_chat_id = None
if 'telegram_chat_id' in _user and _user['telegram_chat_id']:
telegram_chat_id = _user['telegram_chat_id']
else:
plpy.error('Error no telegram user token defined, check user settings')
return None
# requests
headers = {'Content-Type': 'application/json',
'Proxy-Authorization': 'Basic base64'}
data_dict = {'chat_id': telegram_chat_id,
'text': telegram_message,
'parse_mode': 'HTML',
'disable_notification': False}
data = json.dumps(data_dict)
url = f'https://api.telegram.org/bot{telegram_token}/sendMessage'
r = requests.post(url,
data=data,
headers=headers)
#print(r.text)
# Return something boolean?
#plpy.notice('Sent telegram successfully to [{}] [{}]'.format(r.text, r.status_code))
if r.status_code == 200:
plpy.notice('Sent telegram successfully to [{}] [{}] [{}]'.format(telegram_chat_id, telegram_title, r.text))
else:
plpy.error('Failed to send telegram')
return None
$send_telegram_py$ TRANSFORM FOR TYPE jsonb LANGUAGE plpython3u;
-- Description
COMMENT ON FUNCTION
public.send_telegram_py_fn
IS 'Send a message to a telegram user or group specified on chatId using plpython3u';
---------------------------------------------------------------------------
-- python url encode
CREATE OR REPLACE FUNCTION urlencode_py_fn(uri text) RETURNS text
AS $urlencode_py$
import urllib.parse
return urllib.parse.quote(uri, safe="");
$urlencode_py$ LANGUAGE plpython3u IMMUTABLE STRICT;
---------------------------------------------------------------------------
-- python
-- https://ipapi.co/
DROP FUNCTION IF EXISTS reverse_geoip_py_fn;
CREATE OR REPLACE FUNCTION reverse_geoip_py_fn(IN _ip TEXT) RETURNS JSONB
AS $reverse_geoip_py$
"""
Return ipapi.co ip details
"""
import requests
import json
# requests
url = f'https://ipapi.co/{_ip}/json/'
r = requests.get(url)
#print(r.text)
# Return something boolean?
plpy.warning('IP [{}] [{}]'.format(_ip, r.status_code))
if r.status_code == 200:
#plpy.notice('Got [{}] [{}]'.format(r.text, r.status_code))
return r.text;
else:
plpy.error('Failed to get ip details')
return '{}'
$reverse_geoip_py$ LANGUAGE plpython3u;
-- Description
COMMENT ON FUNCTION
public.reverse_geoip_py_fn
IS 'Retrieve reverse geo IP location via ipapi.co using plpython3u';
---------------------------------------------------------------------------
-- python url escape
--
DROP FUNCTION IF EXISTS urlescape_py_fn;
CREATE OR REPLACE FUNCTION urlescape_py_fn(original text) RETURNS text LANGUAGE plpython3u AS $$
import urllib.parse
return urllib.parse.quote(original);
$$
IMMUTABLE STRICT;
-- Description
COMMENT ON FUNCTION
public.urlescape_py_fn
IS 'URL-encoding VARCHAR and TEXT values using plpython3u';
---------------------------------------------------------------------------
-- python geojson parser
--
--CREATE TYPE geometry_type AS ENUM ('LineString', 'Point');
DROP FUNCTION IF EXISTS geojson_py_fn;
CREATE OR REPLACE FUNCTION geojson_py_fn(IN original JSONB, IN geometry_type TEXT) RETURNS JSONB LANGUAGE plpython3u
AS $geojson_py$
import json
parsed = json.loads(original)
output = []
#plpy.notice(parsed)
# [None, None]
if None not in parsed:
for idx, x in enumerate(parsed):
#plpy.notice(idx, x)
for feature in x:
#plpy.notice(feature)
if (feature['geometry']['type'] != geometry_type):
output.append(feature)
#elif (feature['properties']['id']): TODO
# output.append(feature)
#else:
# plpy.notice('ignoring')
return json.dumps(output)
$geojson_py$ -- TRANSFORM FOR TYPE jsonb LANGUAGE plpython3u;
IMMUTABLE STRICT;
-- Description
COMMENT ON FUNCTION
public.geojson_py_fn
IS 'Parse geojson using plpython3u (should be done in PGSQL)';
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