mirror of
https://github.com/SpudGunMan/meshing-around.git
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100 lines
3.5 KiB
Python
100 lines
3.5 KiB
Python
# helper functions for various BBS messaging tasks
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# K7MHI Kelly Keeton 2024
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import pickle # pip install pickle
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import os
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bbs_ban_list = [] # list of banned nodes numbers ex: [2813308004, 4258675309]
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bbs_admin_list = [] # list of admin nodes numbers ex: [2813308004, 4258675309]
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trap_list_bbs = ("bbslist", "bbspost", "bbsread", "bbsdelete", "bbshelp")
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# global message list, later we will use a pickle on disk
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bbs_messages = []
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def load_bbsdb():
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global bbs_messages
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# load the bbs messages from the database file
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if not os.path.exists('bbsdb.pkl'):
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# if not, create it
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bbs_messages = [[1, "Welcome to meshBBS", "Welcome to the BBS, please post a message!",0]]
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print ("\nSystem: Creating new bbsdb.pkl")
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with open('bbsdb.pkl', 'wb') as f:
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pickle.dump(bbs_messages, f)
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else:
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with open('bbsdb.pkl', 'rb') as f:
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bbs_messages = pickle.load(f)
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def save_bbsdb():
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global bbs_messages
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# save the bbs messages to the database file
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print ("System: Saving bbsdb.pkl\n")
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with open('bbsdb.pkl', 'wb') as f:
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pickle.dump(bbs_messages, f)
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def bbs_help():
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# help message
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return "BBS Commands:\n'bbslist'\n'bbspost $subject #message'\n'bbsread #'\n'bbsdelete #'"
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def bbs_list_messages():
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#print (f"System: raw bbs_messages: {bbs_messages}")
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# return a string with new line for each message subject in the list bbs_messages
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message_list = ""
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for message in bbs_messages:
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# message[0] is the messageID, message[1] is the subject
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message_list += "Msg #" + str(message[0]) + " " + message[1] + "\n"
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# last newline removed
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message_list = message_list[:-1]
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return message_list
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def bbs_delete_message(messageID = 0, fromNode = 0):
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# delete a message from the bbsdb
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if messageID > 0:
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# if same user wrote message they can delete it
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if fromNode == bbs_messages[messageID - 1][3] or fromNode in bbs_admin_list:
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bbs_messages.pop(messageID - 1)
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# reset the messageID
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for i in range(len(bbs_messages)):
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bbs_messages[i][0] = i + 1
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# save the bbsdb
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save_bbsdb()
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return "Msg #" + str(messageID) + " deleted."
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else:
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print (f"!!System: node {fromNode}, tried to delete a message: {bbs_messages[messageID - 1]} and was dropped.")
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return "You are not authorized to delete this message."
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else:
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return "Please specify a message number to delete."
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def bbs_post_message(subject, message, fromNode):
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# post a message to the bbsdb and assign a messageID
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messageID = len(bbs_messages) + 1
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# Check the BAN list for naughty nodes and silently drop the message
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if fromNode in bbs_ban_list:
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print (f"!!System: Naughty node {fromNode}, tried to post a message: {subject}, {message} and was dropped.")
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return "Message posted. ID is: " + str(messageID)
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# append the message to the list
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bbs_messages.append([messageID, subject, message, fromNode])
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print (f"System: NEW Message Posted, subject: {subject}, message: {message} from {fromNode}")
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# save the bbsdb
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save_bbsdb()
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return "Message posted. ID is: " + str(messageID)
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def bbs_read_message(messageID = 0):
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if messageID > 0:
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message = bbs_messages[messageID - 1]
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return f"Msg #{message[0]}\nMsg Body: {message[2]}"
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else:
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return "Please specify a message number to read."
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#initialize the bbsdb
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load_bbsdb()
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