Esempio n. 1
0
 def test_is_spam_function_two_returns_false_vns_test_seven(self):
     return_val = EmailAnalyzer.is_spam_function_two(False, 80, 80)
     self.assertFalse(return_val)
Esempio n. 2
0
 def test_is_spam_function_two_returns_true_vns_test_four(self):
     return_val = EmailAnalyzer.is_spam_function_two(False, 20, 65)
     self.assertTrue(return_val)
Esempio n. 3
0
 def test_is_spam_function_two_returns_false_pic_test_one(self):
     return_val = EmailAnalyzer.is_spam_function_two(False, 80, 65)
     self.assertFalse(return_val)
Esempio n. 4
0
 def test_is_spam_function_two_returns_true_vns_test_three(self):
     return_val = EmailAnalyzer.is_spam_function_two(True, 20, 80)
     self.assertTrue(return_val)
Esempio n. 5
0
class RENEGE:
    """Class pour realiser le filtrage du spam en utilisant vocabular.json file et
    CRUD et EmalAnalyze classes"""

    def __init__(self):
        self.email_file = "800-mails.json"
        self.crud = CRUD()
        self.e_mail = EmailAnalyzer()

    def calculate_user_trust(self, user_id):
        #extracting json data
        date_of_first_seen_message = self.crud.get_user_data(user_id, "Date_of_first_seen_message")
        date_of_last_seen_message = self.crud.get_user_data(user_id, "Date_of_last_seen_message")
        n_ham = self.crud.get_user_data(user_id, "HamN")
        n_spam = self.crud.get_user_data(user_id, "SpamN")
        groups = self.crud.get_user_data(user_id, "Groups")

        #calculate the sum of trust values of all groups
        sum_trust = 0
        for group in groups :
            group_id = self.crud.get_group_id(group)
            sum_trust += self.crud.get_group_data(group_id, 'Trust')

        #now that we have all the needed vars, calculate trust1, trust2 and trust
        trust1 = (date_of_last_seen_message * n_ham) / (date_of_first_seen_message * (n_ham + n_spam))
        trust2 = sum_trust / len(groups)

        trust = (trust1 + trust2) / 2

        if trust2 < 50:
            trust = trust2
        if trust1 > 100:
            trust = 100

        #before returning a value, check if trust is between 0 and 100
        if trust < 0:
            trust = 0
        elif trust > 100:
            trust = 100
            
        return trust

    def classify_emails(self, calculation_mode, is_log_est, is_log_combo):
        '''
        fonction deja implemente
        Description: fonction pour commencer l'analyse des e-mails.
        Sortie: bool, 'True' pour succes, 'False' dans le cas de failure.
        '''
        try:
            self.process_email(self.get_email(), calculation_mode, is_log_est, is_log_combo)
            return True
        except Exception:
            raise Exception

    def process_email(self, new_emails, calculation_mode, is_log_est, is_log_combo):
        '''
        Description: fonction pour analyser chaque nouvel e-mail dans le 
        dictionare. Elle gere l'ajout des nouveux utilisateurs et/ou modification
        de l'information existante sur les utilisateurs et groupes.
        Sortie: bool, 'True' pour succes, 'False' dans le cas de failure.
        '''
        print(type(new_emails))
        emails = new_emails["dataset"]
        for email in emails:
            email_adr = email['mail']['From']
            date = email['mail']['Date']
            spam = email['mail']['Spam'] == 'true'
            subject = email['mail']['Subject']
            body = email['mail']['Body']
            user_id = self.crud.get_user_id(email_adr)

            if user_id:
                self.update_user_info(email_adr, date, spam)
            else:
                self.add_user_info(email_adr, date)
            
            # trust de l'utilisateur
            trust = self.crud.get_user_data(user_id, "Trust")
            # moyenne du trust de tous les groupes
            user_group = self.crud.get_user_data(user_id, "Groups")
            sum_trust = 0
            groups = self.crud.read_groups_file()
            for group in groups :
                if group['List_of_members'] == user_group:
                    sum_trust += group['Trust']
            avg_group_trust = sum_trust / len(groups)
            # difference de jours entre last_seen_msg et first_seen_msg
            user_activity = self.substract_dates(self.crud.get_user_data(email_adr, "Date_of_last_seen_message"), 
            self.crud.get_user_data(email_adr, "Date_of_first_seen_message"))

            if(calculation_mode == 1):
                spam = self.e_mail.is_spam_function_one(spam, user_activity, trust, avg_group_trust)
            elif(calculation_mode == 2):
                spam = self.e_mail.is_spam_function_two(spam, trust, avg_group_trust)
            elif(calculation_mode == 0):
                spam = self.e_mail.is_spam(subject, body, is_log_est, is_log_combo, 0)

            # mettre a jour l'utilisateur avec la nouvelle valeur de spam
            self.update_user_info(email_adr, date, spam)

        return True
    
    def substract_dates(self, last_seen_msg, first_seen_msg):
        # calcul de difference de jours entre le dernier et le premier message
        last_seen_msg = str(last_seen_msg).split("-")
        first_seen_msg = str(first_seen_msg).split("-")
        user_activity = date(int(last_seen_msg[0]), int(last_seen_msg[1]), int(last_seen_msg[2]))
                        - date(int(first_seen_msg[0]), int(first_seen_msg[1]), int(first_seen_msg[2]))
        # convertir la soustraction en int
        user_activity = int((str(user_activity).split(" "))[0])

        return user_activity