run.sh

@@ -30,10 +30,6 @@ cd "$RUN_DIR"
 source "$VENV"
 "$ENTRY" "$@"
 
-RETURN_CODE="$?"
-
 # Cleanup
 deactivate
 cd - > /dev/null
-
-exit "$RETURN_CODE"

src/encryption.py

@@ -28,13 +28,15 @@ from cryptography.hazmat.primitives.kdf.pbkdf2 import PBKDF2HMAC
 from collections import OrderedDict
 
 
-class EncryptionFail(Exception):
-	pass
-
 class PasswordMismatch(Exception):
 	pass
 
 
+# Salts
+def generate_salt():
+	return os.urandom(16)
+
+
 # Return string from bytes
 def salt_encode(b):
 	return base64.urlsafe_b64encode(b).decode()
@@ -70,7 +72,8 @@ def derive_key(password, salt):
 		iterations=100000,
 		backend=default_backend()
 		)
-	return base64.urlsafe_b64encode(kdf.derive(password))
+	r_key = base64.urlsafe_b64encode(kdf.derive(password))
+	return r_key
 
 
 # Encryption functions
@@ -96,62 +99,94 @@ def decrypt(token, key):
 # encryption_function:	encrypt(message, key) : decrypt(token, key):
 # Returns settings_server_decrypted dictionary with Byte() values. Will need to use
 # ChangeEncodingDict to make them strings (recommended cfg file friendly)
-def encrypt_settings(settings_server, password, salt, encryption_function):
+def __settings_server(password, salt, settings_server, encryption_function):
 	key = derive_key(password, salt)
 	settings_server_decrypted = OrderedDict()
 	for setting in settings_server:
 		settings_server_decrypted[setting] = encryption_function(settings_server[setting], key)
 	return settings_server_decrypted
 
-def get_keyfile(keyfile=None):
-	if keyfile is not None:
-		with open(keyfile, "rb") as f:
-			return f.read()
-	return None
+
+# Returns (salt, settings_server)
+def _settings_server_encrypt(settings_server):
+	salt = generate_salt()
+	password = getpass.getpass("Enter password: ")
+	password2 = getpass.getpass("Retype Password: ")
+
+	if password != password2:
+		raise PasswordMismatch
+
+	settings_server_encrypted = __settings_server(password.encode(), salt, encode_dict(settings_server), encrypt)
+
+	return salt, settings_server_encrypted
 
 
-def get_pass(q):
-	try:
-		return getpass.getpass(q).encode()
-	except KeyboardInterrupt:
-		raise EncryptionFail("\nQuitting...")
-
-
-def settings_server_encrypt(settings_server, keyfile=None):
-	try:
-		settings_server = encode_dict(settings_server)
-		salt = os.urandom(16)
-		password = get_keyfile(keyfile)
-		if password is None:
-			password = get_pass("Enter password: ")
-			password2 = get_pass("Enter password: ")
-			if password != password2:
-				raise PasswordMismatch("Passwords do not match")
-		encrypted = encrypt_settings(settings_server, password, salt, encrypt)
-		return salt_encode(salt), decode_dict(encrypted)
-	except PasswordMismatch as e:
-		raise EncryptionFail(str(e))
-	except Exception as e:
-		err = str(e)
-		raise EncryptionFail("Encrypt Error: {}".format(err))
-
-
-def settings_server_decrypt(settings_server, settings_encrypt, keyfile=None):
-	try:
-		if not settings_encrypt["encrypt"]:
-			return settings_server
-		settings_server = encode_dict(settings_server)
-		password = get_keyfile(keyfile or settings_encrypt["keyfile"]) or get_pass("Enter password: ")
+# Returns (settings_server)
+def _settings_server_decrypt(settings_server, settings_encrypt):
+	settings_server_encoded = encode_dict(settings_server)
+	if settings_encrypt["encrypt"]:
 		salt = salt_decode(settings_encrypt["salt"])
-		decrypted = encrypt_settings(settings_server, password, salt, decrypt)
-		return decode_dict(decrypted)
-	except base64.binascii.Error:
-		raise EncryptionFail("Salt is invalid")
+		password = getpass.getpass("Enter password: ")
+		return __settings_server(password.encode(), salt, settings_server_encoded, decrypt)
+	else:
+		return settings_server_encoded
+
+
+# Wrapper function that will catch exceptions and exit
+def settings_server_new(function, **kwargs):
+	try:
+		return function(**kwargs)
+
+	# If the user cancels the login
+	except KeyboardInterrupt:
+		print("\nQuitting...")
+
+	# If the user passwords do not match (encrypt)
+	except PasswordMismatch:
+		print("Passwords do not match...")
+
+	# Incorrect password entered (decrypt)
 	except InvalidToken:
-		raise EncryptionFail("Password or token is incorrect")
+		print("Password or Token Incorrect...")
+
+	# Probably the salt value got modified
+	except base64.binascii.Error:
+		print("Salt is invalid...")
+
+	# Some other kind of fuck up
 	except Exception as e:
-		err = str(e)
-		raise EncryptionFail("Decrypt Error: {}".format(err))
+		print("Unknown exception occurred...")
+		print(e)
+
+	# Exit if an exception was thrown
+	sys.exit(1)
+
+
+# Glue functions that package **kwargs automatically
+def settings_server_encrypt(settings_server):
+	kwargs = {"settings_server": settings_server}
+	return settings_server_new(_settings_server_encrypt, **kwargs)
+
+
+def settings_server_decrypt(settings_server, settings_encrypt):
+	kwargs = {
+			"settings_server": settings_server,
+			"settings_encrypt": settings_encrypt
+			}
+	return settings_server_new(_settings_server_decrypt, **kwargs)
+
+
+# The _cfg functions should return a regular string
+# These are the functions that should interface with the bot a return a plain string
+# settings_server ordered dictionary
+def settings_server_encrypt_cfg(settings_server):
+	salt, settings_server = settings_server_encrypt(settings_server)
+	return salt_encode(salt), decode_dict(settings_server)
+
+
+def settings_server_decrypt_cfg(settings_server, settings_encrypt):
+	settings_server = settings_server_decrypt(settings_server, settings_encrypt)
+	return decode_dict(settings_server)
 
 
 def main():
@@ -167,7 +202,6 @@ def main():
 	parser.add_argument("--encrypt", help="Generate encrypted authentication.", action="store_true")
 	parser.add_argument("--decrypt", help="Decrypt encrypted authentication", action="store_true")
 	parser.add_argument("--recrypt", help="Recrypt encrypted authentication", action="store_true")
-	parser.add_argument("-k", "--keyfile", help="Keyfile used for decryption", default=None)
 	parser.add_argument("-c", "--cfg", help="Specify config file.", default=default_cfg)
 
 	arguments = parser.parse_args()
@@ -180,28 +214,25 @@ def main():
 		import importlib
 		cfg = importlib.import_module(arguments.cfg)
 		settings_server = cfg.settings_server
-		settings_encrypt = cfg.settings_encrypt
-		keyfile = arguments.keyfile or settings_encrypt["keyfile"]
+		settings_encrypt = None
 
 		if arguments.decrypt and arguments.encrypt:
 			print("Re-encrypting")
 
 		if arguments.decrypt:		# arguments.decrypt
 			print("Decrypt...")
-			settings_server = settings_server_decrypt(settings_server, settings_encrypt, arguments.keyfile)
+			settings_server = settings_server_decrypt_cfg(cfg.settings_server, cfg.settings_encrypt)
 			settings_encrypt = OrderedDict([
-				("encrypt",	False),
-				("salt",	settings_encrypt["salt"]),
-				("keyfile", arguments.keyfile)
+				("encrypt", False),
+				("salt", cfg.settings_encrypt["encrypt"])
 			])
 
 		if arguments.encrypt:
 			print("Encrypt...")
-			salt, settings_server = settings_server_encrypt(settings_server, keyfile)
+			salt, settings_server = settings_server_encrypt_cfg(settings_server)
 			settings_encrypt = OrderedDict([
-				("encrypt",	True),
-				("salt",	salt),
-				("keyfile", arguments.keyfile)
+				("encrypt",				True),
+				("salt",				salt)
 			])
 
 		print("settings_server = {}".format(pformat(settings_server)))
@@ -210,8 +241,4 @@ def main():
 
 
 if __name__ == "__main__":
-	try:
-		sys.exit(main())
-	except EncryptionFail as e:
-		print(e)
-		sys.exit(1)
+	sys.exit(main())

src/main.py

@@ -1,7 +1,7 @@
 #! /usr/bin/env python3
 
-# Mirai Nikki Bot a video frame posting bot for Pleroma
-# Copyright (C) 2022 Anon
+# Danbooru Bot, an image posting bot for Pleroma
+# Copyright (C) 2022 Anon <yanderefedi@proton.me>
 # 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -24,10 +24,146 @@ import datetime
 import contextlib
 
 
-class FailedToLoadCfg(Exception):
+# A class that inherits YandereBot from the yandere_bot module
+# This class is used to handle command line arguments gracefully, and extend functionality quickly
+# Bot specific changes should be made here (if they are minor enough).
+# This will be instantiated from the main() function
+class YandereBot(yandere_bot.YandereBot):
+	# The below settings are required from the configuration module
+	settings_time = None
+	settings_reminder = None
+
+	# Wait before running
+	delay_start = 0
+
+	def __init__(self, cfg, debug_mode, prime_bot, start_index, delay_d=None, delay_h=None, delay_s=None):
+		super(YandereBot, self).__init__(cfg, debug_mode, prime_bot=False)
+		self.load_settings(self.cfg, ("settings_time", "settings_reminder"))
+		self.set_pretimer(delay_d, delay_h, delay_s)
+		self.currentIndexCount = start_index
+
+		if self.debug_mode:
+			print("[DEBUG MODE ON - DRY RUN BEGIN]")
+
+		# Do not perform sanity test if stdout is None.
+		# input() will fail if stdout is None, which could happen with the following command
+		# ./run --dry-run -h -d 'a date in the past'
+		if sys.stdout is not None and not self.pass_sanity_test():
+			raise FailedSanityTest
+
+		if prime_bot:
+			self.prime_bot()
+	
+	def print_date_time_example(self):
+		print_fmt = "  {0:6} {1:10} {2}"
+		time_fmt = self.settings_time["time_format"]
+		date_fmt = self.settings_time["date_format"]
+		current_time = self.dateSelection
+
+		print(print_fmt.format(
+			"TIME", time_fmt, current_time.strftime(time_fmt)
+		))
+		print(print_fmt.format(
+			"DATE", date_fmt, current_time.strftime(date_fmt)
+		))
+
+	def set_delay_d(self, d):
+		try:
+			t = datetime.datetime.strptime(d, self.settings_time["date_format"])
+			self.dateNextSelection = self.dateNextSelection.replace(
+				year=t.year, month=t.month, day=t.day
+			)
+		except Exception:
+			print("Invalid date format: {}\n\nCorrect date/time format examples:".format(d))
+			self.print_date_time_example()
+			raise DateWrongFormat
+
+	def set_delay_h(self, h, add_24):
+		try:
+			t = datetime.datetime.strptime(h, self.settings_time["time_format"])
+			self.dateNextSelection = self.dateNextSelection.replace(
+				hour=t.hour, minute=t.minute, second=t.second, microsecond=t.microsecond
+			)
+			if self.dateNextSelection < self.dateSelection and add_24:
+				self.dateNextSelection = yandere_bot.time_add_seconds(self.dateNextSelection, 60 * 60 * 24)
+		except Exception:
+			print("Invalid time format: {}\n\nCorrect date/time format examples:".format(h))
+			self.print_date_time_example()
+			raise TimeWrongFormat
+
+	def set_pretimer(self, d=None, h=None, s=0):
+		if d:
+			self.set_delay_d(d)
+		if h:
+			self.set_delay_h(h, d is None)
+		if s:
+			self.delay_start = max(0, s)
+
+	# Check for potential misconfigurations by the user
+	def pass_sanity_test(self):
+		# Calculate pre-timer value
+		seconds_until_next_pos = yandere_bot.time_diff_seconds(self.dateNextSelection, self.dateSelection)
+
+		# Possible misconfigurations that will prompt the user to continue
+		pretimer_less_than_zero = seconds_until_next_pos < 0
+		pretimer_greater_than_sleep = seconds_until_next_pos > self.settings_behavior["sleep_seconds"]
+
+		# Prompt the user
+		prompt_user = pretimer_less_than_zero or pretimer_greater_than_sleep
+
+		# Remind the user to generate new OAuth tokens
+		dt = datetime.datetime.strptime(self.settings_reminder, self.settings_time["long_date_format"])
+		if dt < datetime.datetime.now():
+			print("REMINDER: Generate new tokens!!")
+
+		# Check if the bot is back-posting in time and make sure this is what the user wanted to avoid spamming
+		if pretimer_less_than_zero:
+			sleep = round(abs(seconds_until_next_pos), 2)
+			images = round(sleep / (self.settings_behavior["sleep_seconds"] * self.settings_behavior["uploads_per_post"]), 2) + 1
+			print("WARNING: Pre-timer is less than the current time by: {} seconds. {} images will post immediately".format(
+				sleep, images
+			))
+		# Check if the bot will wait for longer than the default amount of sleep time configured in the cfg.py
+		elif pretimer_greater_than_sleep:
+			print("WARNING: Pre-timer will sleep for {} seconds. This is more than the configured amount ({} seconds)".format(
+				round(seconds_until_next_pos, 2), self.settings_behavior["sleep_seconds"]
+			))
+
+		# Prompt the user if something doesn't seem right
+		# This must be done before we set up our keyboard interrupts. Otherwise the below exceptions will not work.
+		try:
+			if prompt_user:
+				# Default to 'y' if the user just presses enter
+				ans = input("Do you want to continue [Y/n]? ") or "y"
+				return ans.lower() in ("y", "yes")
+		except (EOFError, KeyboardInterrupt):
+			print()
+			return False
+
+		# Sanity test passed
+		return True
+
+	def start(self, delay=None):
+		_delay = delay or self.delay_start
+		return super(YandereBot, self).start(max(0, _delay))
+
+
+# Custom exceptions
+class TimeWrongFormat(Exception):
 	pass
 
 
+class DateWrongFormat(Exception):
+	pass
+
+
+class FailedSanityTest(Exception):
+	pass
+
+
+class FailedToLoadCfg(Exception):
+	pass
+
 # Entry point if run from the command line
 def main():
 	# Default config file
@@ -37,15 +173,21 @@ def main():
 	parser = argparse.ArgumentParser(
 		description="A bot for posting on Mastodon",
 		# epilog="All switches can be combined for greater control",
-		add_help=True)
+		add_help=False)
 	parser.add_argument("--dry-run", help="Will not login or post to Plemora", action="store_true")
 	parser.add_argument("--debug", help="Same as --dry-run", action="store_true")
+	parser.add_argument("-w", "--wait", type=int, help="Wait before posting first image (seconds)", default=0)
+	parser.add_argument("-t", "--time", help="Wait for time before posting first image", default=None)
+	parser.add_argument("-d", "--date", help="Wait for date before posting first image", default=None)
+	parser.add_argument("-i", "--index", help="Start at index (only matters if profile select is set to sequential)", default=0)
 	parser.add_argument("-c", "--config", help="Set custom config file (Default: {})".format(default_cfg), default=default_cfg)
-	parser.add_argument("-k", "--keyfile", help="Keyfile used for decryption")
-	parser.add_argument("-i", "--index", help="Start at index (only matters if profile is set to sequential", default=0)
+	parser.add_argument("-h", "--help", help="Show this help message and exit", action="store_true")
 	parser.add_argument("remainder", help=argparse.SUPPRESS, nargs=argparse.REMAINDER)
 	arguments = parser.parse_args()
 	
+	# Redirect stdout when the bot first initializes if the bot is not going to run normally
+	redirect_stdout = None if arguments.help else sys.stdout
+
 	# Yandere Lewd Bot
 	yandere = None
 	yandere_config = None
@@ -55,18 +197,32 @@ def main():
 		import importlib
 		yandere_config = importlib.import_module(arguments.config)
 	except ImportError:
-		raise FailedToLoadCfg("Invalid config file: {}".format(arguments.config))
+		print("Failed to Load Configuration:", arguments.config)
+		raise FailedToLoadCfg
 
 	# Flag if the bot is running in debug mode
-	debug_mode = arguments.dry_run or arguments.debug
+	debug_mode = (arguments.dry_run or arguments.debug or arguments.help)
 
-	yandere = yandere_bot.YandereBot(
-		yandere_config,
-		arguments.keyfile,
-		debug_mode,
-	)
+	with contextlib.redirect_stdout(redirect_stdout):
+		prime_bot = not arguments.help
 
-	yandere.currentIndexCount = int(arguments.index)
+		yandere = YandereBot(
+			yandere_config,
+			debug_mode,
+			prime_bot,
+			int(arguments.index),
+			arguments.date,
+			arguments.time,
+			arguments.wait
+		)
+	
+	# Print Usage Information with Time and Date Formats with Examples
+	if arguments.help:
+		parser.print_help()
+		print()
+		yandere.print_date_time_example()
+		print()
+		return 0
 
 	# Setup exit calls
 	# Must be done after we declare our bot(s), otherwise this will be called if quitting on decrypting settings )
@@ -88,9 +244,18 @@ if __name__ == "__main__":
 	# Exceptions raised from the main function
 	except FailedToLoadCfg:
 		sys.exit(10)
+	except FailedSanityTest:
+		sys.exit(9)
+	except DateWrongFormat:
+		sys.exit(8)
+	except TimeWrongFormat:
+		sys.exit(7)
+
 	# Exceptions raised from the bot
 	except yandere_bot.Debug:
 		sys.exit(6)
+	except yandere_bot.MissingMasterList:
+		sys.exit(5)
 	except yandere_bot.BadCfgFile:
 		sys.exit(4)
 	except yandere_bot.FailedLogin:

src/yandere_bot.py

@@ -46,22 +46,26 @@ class YandereBot:
 	# Class variables
 	mastodon_api = None
 	failed_uploads = 0
-	consecutive_failed_uploads = 0
 	currentSessionCount = 0
 	currentIndexCount = 0
 	debug_mode = False
 	primed = False
 	decrypted = False
 
+	# Time variables
+	dateSelection = None
+	dateNextSelection = None
+
 	# YandereBot.__init__()
 	# @param cfg            A dynamically loaded python module. See yanlib.module_load() for an example
 	# @param debug_mode     Should the bot run in debug mode (do not sign in or post to Pleroma)
 	# prime_bot             Should the bot immediately prime itself (configure picture list and login, but don't post)
-	def __init__(self, cfg, keyfile=None, debug_mode=False, prime_bot=True):
+	def __init__(self, cfg, debug_mode=False, prime_bot=True):
+		self.dateSelection = datetime.datetime.now()
+		self.dateNextSelection = self.dateSelection
 		self.cfg = cfg
 		self.load_settings(self.cfg)
 		self.debug_mode = debug_mode or self.settings_behavior["debug"]
-		self.settings_encrypt["keyfile"] = keyfile or self.settings_encrypt["keyfile"]
 		random.seed(os.urandom(16))
 		if prime_bot:
 			self.prime_bot()
@@ -93,11 +97,7 @@ class YandereBot:
 	def decrypt_settings(self):
 		if self.settings_encrypt["encrypt"] and not self.decrypted and not self.debug_mode:
 			import encryption
-			try:
-				self.settings_server = encryption.settings_server_decrypt(
-						self.settings_server, self.settings_encrypt, self.settings_encrypt["keyfile"])
-			except encryption.EncryptionFail as e:
-				raise BadCfgFile(str(e))
+			self.settings_server = encryption.settings_server_decrypt_cfg(self.settings_server, self.settings_encrypt)
 		self.decrypted = True
 
 	# Login to Pleroma
@@ -120,16 +120,24 @@ class YandereBot:
 			raise FailedLogin
 	
 	# Maybe I should remove this from the backend?
-	def print_header_stats(self, picked):
-		profile = picked["profile"]["name"] if picked else None
-		url = picked["file_url"] if picked else None
-		path = picked["full_path"] if picked else None
-		nsfw = picked["nsfw"] if picked else None
-		index = (self.currentIndexCount - int(self.currentSessionCount > 0)) % len(self.settings_post)
+	def print_header_stats(self, picked, date_selection, date_next_selection):
+		picked_name = picked["profile"]["name"] if picked else None
+		picked_url = picked["file_url"] if picked else None
+		picked_path = picked["full_path"] if picked else None
+		picked_nsfw = picked["nsfw"] if picked else None
+		picked_index = (self.currentIndexCount - int(self.currentSessionCount > 0)) % len(self.settings_post)
+		next_selection_seconds = max(0, int(time_diff_seconds(date_next_selection, date_selection)))
+
+		print("[Profile]", picked_name, "[Index]", picked_index)
+		print(picked_url)
+		print("Explicit:", picked_nsfw)
+		print("Selection time:		{}".format(
+			date_selection.strftime(self.settings_time["long_date_format"]))	)
+		print("Next selection time:	{} ({} seconds)".format(
+			date_next_selection.strftime(self.settings_time["long_date_format"]), next_selection_seconds)	)
+		print("[ {} Selected during session | {} Failed ]\n".format(
+			self.currentSessionCount, self.failed_uploads)	)
 
-		print("Profile: {} | Index: {} | NSFW: {} | Path: {} | URL: {}".format(
-			profile, index, nsfw, path, url
-			))
 	
 	# Returns a list of media paths (without the hashes)
 	def download_media(self, picked_profile):
@@ -152,28 +160,12 @@ class YandereBot:
 
 	# Returns a list of tuples that contain the media list path and media mastodon dictionary
 	def upload_media_list(self, path_list):
-		media_list = []
-		# Validate picked
-		for path in path_list:
-			if not os.path.isfile(path):
-				raise FileNotFoundError("Could not upload: {}".format(path))
-			elif not self.valid_mimetype(path):
-				raise InvalidMimeType("Invalid mime type")
-			elif not self.valid_file_size(path):
-				raise FileTooLarge("File is too large to upload")
-
-		# Upload
-		for path in path_list:
-			if not self.debug_mode:
-				media = self.mastodon_api.media_post(path, description=os.path.basename(path))
-				media_dict = {
-						"path": path,
-						"media": media
-						}
-				media_list.append(media_dict)
+		if self.debug_mode:
+			return tuple()
+		media_list = ((ele, self.mastodon_api.media_post(ele, description=os.path.basename(ele))) for ele in path_list)
 		return media_list
 
-	def get_post_text(self, picked, media_list):
+	def get_post_text(self, picked,  media_list):
 		content_type = self.settings_behavior["content_type"]
 		content_newline = self.settings_behavior["content_newline"]
 		nsfw = picked["nsfw"]
@@ -198,9 +190,10 @@ class YandereBot:
 		string_imglinks_joined = content_newline.join(filter(None, string_imglinks))
 		string_post = content_newline.join(filter(None, (static_message, string_imglinks_joined)))
 
-		return string_post
+		return content_type, string_post
 
-	def valid_mimetype(self, full_path):
+	def valid_mimetype(self, picked):
+		full_path = picked["full_path"]
 		mime = magic.from_file(full_path, mime=True)
 	
 		if mime is None:
@@ -211,26 +204,38 @@ class YandereBot:
 		return mime_category in ("image", "video")
 
 
-	def valid_file_size(self, full_path):
+	def valid_file_size(self, picked):
+		full_path = picked["full_path"]
 		max_size = self.settings_behavior["max_size"]
 		file_size = os.stat(full_path).st_size
+
 		return file_size <= max_size
 
 
 	def _post(self, picked):
-		if not picked:
-			raise InvalidPost("Picked post is none")
-		upload_list = [picked["full_path"]]
-		media_list = self.upload_media_list(upload_list)
-		message = self.get_post_text(picked, media_list)
+		# Validate picked
+		if picked is None:
+			raise InvalidPost("Picked post is None")	
+
+		if not os.path.isfile(picked["full_path"]):
+			raise FileNotFoundError("File not found: {}".format(picked))
+		
+		elif not self.valid_mimetype(picked):
+			raise InvalidMimeType("Invalid mime type")
+
+		elif not self.valid_file_size(picked):
+			raise FileTooLarge("File is too large to upload")
+
+		media_list = self.upload_media_list([picked["full_path"]])
+		content_type, message = self.get_post_text(picked, media_list)
 		if self.debug_mode:
 			return picked
 		self.mastodon_api.status_post(
 			message,
-			media_ids=[i["media"] for i in media_list],
+			media_ids=[i[1] for i in media_list if len(i) == 2],
 			visibility=self.settings_behavior["visibility"],
 			sensitive=picked["nsfw"],
-			content_type=self.settings_behavior["content_type"]
+			content_type=content_type
 		)
 		return picked
 
@@ -268,7 +273,6 @@ class YandereBot:
 
 			# After a successful post
 			self.currentSessionCount += 1
-			self.consecutive_failed_uploads = 0
 			self.currentIndexCount += 1
 
 			# The post was successful
@@ -297,16 +301,29 @@ class YandereBot:
 
 		# An exception occurred
 		self.failed_uploads += 1
-		self.consecutive_failed_uploads += 1
+		print("[Errors: {}]".format(self.failed_uploads))
+
+		# Sleep
+		self.eventSleep.wait(self.settings_behavior["retry_seconds"])
 
 		# The post failed
 		return None
 
+	def schedule_next_post(self):
+		self.dateSelection = self.dateNextSelection
+		self.dateNextSelection = time_add_seconds(self.dateSelection, self.settings_behavior["sleep_seconds"])
+
+	# Will wait between the current time and the time of next selection
+	def wait_future_time(self):
+		seconds = time_diff_seconds(self.dateNextSelection, datetime.datetime.now())
+		self.eventSleep.wait(max(0, seconds))
+
 	# [BEGIN THE PROGRAM]
 	def prime_bot(self):
 		if not self.debug_mode:
 			self.decrypt_settings()
-			self.login()
+			if self.can_post():
+				self.login()
 		self.primed = True
 
 	def start(self, delay=0):
@@ -314,6 +331,30 @@ class YandereBot:
 		if not self.primed:
 			self.prime_bot()
 
+		# Early out if the bot is incapable of posting
+		if not self.can_post():
+			print("Bot is incapable of posting!!")
+			return 1
+
+		start_time = self.dateSelection
+		delay_seconds = max(time_diff_seconds(self.dateNextSelection, start_time) + delay, delay)
+		delay_time = time_add_seconds(start_time, delay_seconds)
+
+		# Print the first image in the list if a delay or pretimer is set
+		if delay_seconds:
+			self.print_header_stats(None, start_time, delay_time)
+
+		# The delay parameter is different from the dateSelection and dateSelectionNext
+		# It will literally time out the bot for a given number of seconds regardless of the pre-timer setting
+		# This is useful if you want to set a delay of 30 seconds, before back-posting several images
+		self.eventSleep.wait(max(0, delay))
+
+		# Check if the pre-timer is set
+		# dateNextSelection should be greater than dateSelection if it is
+		# dateSelection and dateNextSelection are both set to the current time when the bot is initialized
+		if delay_seconds:
+			self.wait_future_time()
+
 		# Begin posting
 		self.main_loop()
 
@@ -326,18 +367,35 @@ class YandereBot:
 	def can_post(self):
 		return (
 				not self.eventSleep.is_set() and
-				self.currentSessionCount < self.settings_behavior["uploads_per_post"] and
-				self.consecutive_failed_uploads < self.settings_behavior["max_errors"] and
+				self.settings_behavior["uploads_per_post"] > 0 and
 				self.currentIndexCount >= 0
 				)
 
 	def main_loop(self):
-		sleep_seconds = self.settings_behavior["retry_seconds"]
+		target_posts = self.settings_behavior["uploads_per_post"]
 		while self.can_post():
-			picked = self.post()
-			self.print_header_stats(picked)
+			successful_posts = 0
+			while (successful_posts < target_posts) and self.can_post():
+				last_picked = self.post()
+				successful_posts += int(last_picked is not None)
+				if successful_posts >= target_posts:
+					self.schedule_next_post()
+					self.print_header_stats(last_picked, self.dateSelection, self.dateNextSelection)
+				else:
+					self.print_header_stats(last_picked, self.dateNextSelection, self.dateNextSelection)
+
 			if self.can_post():
-				self.eventSleep.wait(sleep_seconds)
+				self.wait_future_time()
+
+
+# ------------------------------- TIME FUNCTIONS ---------------------------------------------
+def time_add_seconds(dt, seconds):
+	return dt + datetime.timedelta(0, seconds)
+
+
+def time_diff_seconds(d1, d2):
+	return (d1-d2).total_seconds()
+
 
 # Custom Exceptions for YandereBot
 class Debug(Exception):