#!/usr/bin/env python # # Guestbook in Python # # I installed the minimal Raspberry PI """ Raspberry Pi OS Lite Release date: November 19th 2024 System: 32-bit Kernel version: 6.6 Debian version: 12 (bookworm) Size: 508MB """ # # Raspberry Pi OS Lite Release date: November 19th 2024 System: 32-bit Kernel version: 6.6 Debian version: 12 (bookworm) Size: 508MB # # It would be possible to install the LAMP stack, # Howevery this already has two web servers you can use. # * busybox httpd # * python -m httpd.server 8080 & # # To get it to boot on power up set up /etc/rc.local # # scp pi@patrickpi:/etc/rc.local rc.local.txt # """ #!/bin/sh -e # owned by root # chmod 755 /etc/rc.local #!/usr/bin/ env python # # You could start a webserver using:- # python -m http.server 8080 & # Print the IP address _IP=$( /usr/bin/hostname -I) || true if ["$_IP" ]; then # printf "My IP address is %s\n" "$_IP" printf "My IP address is %s\n" fi # log last boot time for debug purposes date > /home/pi/rclocal.txt /usr/bin/env >> /home/pi/rclocal.txt /home/pi/iic/a.out ====boot1==== & sleep 1 /home/pi/iic/a.out ====boot2==== & /usr/bin/perl /home/pi/server_iot.pl & cd /home/pi #python3 -m http.server & #/home/pi/test.sh & /usr/bin/busybox httpd -p 0.0.0.0:8086 -h /home/pi/www & exit 0 """ # # Guestbook script in Python - gb.py # # A just about working guestbook suitable for use on my home lan. # some escaping of ' and " is to be done. # multi line comments seem to be working # import os import sys import urllib #from urllib.parse import urlparse from urllib.parse import urlparse, parse_qs # Send an HTTP header indicating the content type as HTML print("Content-type: text/html\n\n") # Start an HTML document with center-aligned content # style='text-align:center;' print( ''' ''' ) # Display a green heading print("

Guestbook

") print("

")

# for method=GET
query_string = os.environ.get("QUERY_STRING","")
#request_result = parse_qs(query_string)
#
print("GET:using query_string:")
print( query_string )
print( "===================")
# for method=POST
CONTENT_LENGTH = os.environ.get("CONTENT_LENGTH",0)
import sys
line=""
for line in sys.stdin:
  print(f"Input: {line}")

print("POST:using std_in:")
print( line )
print( "===================")
# add query string and stdin then parse
request_result = parse_qs( query_string+line )


#
# to be done:- convert end of line for JavaScript.
#
# lines end with \r,\n, \r\n 
# javaScript does not like multi line strings"
def gbField( p ):
  sep = "'"  
  f = request_result.get( p , "" )
  if ( f ):
    #return sep + f[0].replace("\r", "
\\") + sep
    return sep + (f[0].replace("\r", "
\\").replace('\"','\\\"').replace("\'","\\\'")) + sep

  return ""

sep = ","

import datetime

now = datetime.datetime.now()
ipAddress = database_url = os.environ.get("REMOTE_ADDR", "")



print(  "gbF( " + 
 gbField( "name" )         + sep + 
 gbField( "email" )        + sep +
 
 "\'"+str( now )    +" \'" + sep + 
 "\'"+str(ipAddress)+" \'" + sep +

 gbField( "userfield1" )   + sep +
 gbField( "userfield2" )   + sep +
 gbField( "userfield3" )   + sep +
 gbField( "userfield4" )   + sep +
 gbField( "comments" )     +
 " ); "
 )

#For Python use () for multiline statements. 
a = (  "gbF( " + 
 gbField( "name" )         + sep + 
 gbField( "email" )        + sep +
 
 #"\'2025-01-24 10:49:01\'"     + sep + 
 "\'"+str( now )+" \'"     + sep + 

 #"\'127.0.0.1\'"               + sep +
 "\'"+str(ipAddress)+" \'" + sep +
 
 gbField( "userfield1" )   + sep +
 gbField( "userfield2" )   + sep +
 gbField( "userfield3" )   + sep +
 gbField( "userfield4" )   + sep +
 gbField( "comments" )     +
 " ); "
 )

print( a )

# Open the file in write mode
with open('/home/pi/www/gb/gbF.js', 'a') as file:
  # Write a string to the file
  file.write( a + ";\n")
  file.close() 

#
# try out gbF in javaScript 
#
print("try javascript" )
print("")



print( "ENV" ) 
# Retrieving the value of the "PATH" environment variable
env_dict = os.environ
print(env_dict)

for key, value in env_dict.items():
  print(f"{key}: {value}")

print( "" ) 

"""
# Retrieving the value of the "PATH" environment variable
path = os.environ["PATH"]
print(path)

#CONTENT_LENGTH:
#CONTENT_LENGTH = os.environ["CONTENT_LENGTH"]
    
# Retrieving the value of an environment variable with a default value
database_url = os.environ.get("DATABASE_URL", "localhost:5432")
print(database_url)
"""

#
# try out gbF in javaScript 
#
print("")

print("

") print( '''

home

home |

Forms

form | form2

data: gbookFXXXxx data | data: gbF

Data:-

http://patrickpi:8086/gb/gbF.js

''' ) # Close the HTML document print("")