1 files changed, 59 insertions, 0 deletions
diff --git a/common/misc.py b/common/misc.py
new file mode 100755
index 0000000..3961b8d
--- /dev/null
+++ b/common/misc.py
@@ -0,0 +1,59 @@
+# -*- coding: utf-8 -*-
+import validators
+from common.strings import StaticAnswers
+
+
+def deduplicate(reply):
+	"""
+	list deduplication method
+	:param list reply: list containing non unique items
+	:return: list containing unique items
+	"""
+	reply_dedup = list()
+	for item in reply:
+		if item not in reply_dedup:
+			reply_dedup.append(item)
+
+	return reply_dedup
+
+
+def validate(wordlist, index):
+	"""
+	validation method to reduce malformed querys and unnecessary connection attempts
+	:param wordlist: words separated by " " from the message
+	:param index: keyword index inside the message
+	:return: true if valid
+	"""
+	# keyword inside the message
+	argument = wordlist[index]
+
+	# check if argument is in the argument list
+	if argument in StaticAnswers().keys(arg='list'):
+		# if argument uses a domain check for occurrence in list and check domain
+		if argument in StaticAnswers().keys(arg='list', keyword='domain_keywords'):
+			try:
+				target = wordlist[index + 1]
+				if validators.domain(target):
+					return True
+				elif validators.email(target):
+					return True
+
+			except IndexError:
+				# except an IndexError if a keywords is the last word in the message
+				return False
+
+		# check if number keyword is used if true check if target is assignable
+		elif argument in StaticAnswers().keys(arg='list', keyword='number_keywords'):
+			try:
+				if wordlist[index + 1]:
+					return True
+			except IndexError:
+				# except an IndexError if target is not assignable
+				return False
+		# check if argument is inside no_arg list
+		elif argument in StaticAnswers().keys(arg='list', keyword="no_arg_keywords"):
+			return True
+		else:
+			return False
+	else:
+		return False