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‎cProblems/nums/bennett.c‎

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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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void paceCar()
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{
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char *flag = malloc(28 * sizeof(char));
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int arr[28] = {110, 1, 105, 110, 1, 106, 2, 97, 123, 100, 3, 117, 53, 5, 116, 95, 48, 102, 8, 102, 95, 121, 48, 117, 114, 95, 67, 125};
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int arrLength = 28;
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for (int i = 0; i < arrLength; i++)
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{
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if (arr[i] <= 10)
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{
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continue;
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}
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int *value = arr + i;
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char *cast = (char *)value;
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strcat(flag, cast);
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}
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puts(flag);
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}
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int main()
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{
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paceCar();
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}

‎cProblems/nums/nums.c‎

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main()
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{
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int x[] = { 110,
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1,
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105,
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110,
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1,
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106,
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2,
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97,
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123,
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100,
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3,
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117,
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53,
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5,
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116,
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95,
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48,
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102,
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8,
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102,
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95,
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121,
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48,
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117,
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114,
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95,
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67,
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125 } for (int a = 0; a < 28; a++) x[a] > 10 &&
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putchar(x[a])
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}

‎pythonProblems/breakthis.py‎

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from datetime import datetime, timedelta
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def get_first_day_of_week_after_date(start_date, day_of_week):
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#weekdays = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"]
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current_date = start_date
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while current_date.strftime("%A").lower() != day_of_week.lower():
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current_date += timedelta(days=1)
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return current_date
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def get_all_dates(start_date, end_date, delta_days=7):
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all_dates = []
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current_date = start_date
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while current_date <= end_date:
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all_dates.append(current_date)
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current_date += timedelta(days=delta_days)
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return all_dates
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class OfficeHoursScheduler:
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def __init__(self, semester_start_date, semester_end_date, ta_schedule):
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self.semester_start_date = semester_start_date
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self.semester_end_date = semester_end_date
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self.office_hours = {} #self.office_hours[person_id][date] = []
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"""
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Matt:{Jan 10th:[ {10am - 11am},{3pm - 4pm} ]
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max:{Jan 11th: [ {11am - 12pm}], Jan 18th: [ {11am - 12pm} ], Jan 25th: [ {11am - 12pm} ]
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"""
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#add_single_office_hour
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def add_single_office_hour(self, person_id, date, start_time, end_time, additional=False):
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if person_id not in self.office_hours:
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self.office_hours[person_id] = {}
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if date not in self.office_hours[person_id]:
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self.office_hours[person_id][date] = []
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# Check for duplicates before adding
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current_office_hours = self.office_hours[person_id][date]
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if {'start_time': start_time, 'end_time': end_time} not in current_office_hours:
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self.office_hours[person_id][date].append({'start_time': start_time, 'end_time': end_time})
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print(f"Added specific office hour for person {person_id} on {date} from {start_time} to {end_time}")
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if additional:
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pass #add to additional_office_hours list
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else:
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print(f"Office hour for person {person_id} on {date} at {start_time} to {end_time} already exists")
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#add_remaining_office_hours
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def add_remaining_office_hours(self, person_id, start_date, day_of_week, start_time, end_time):
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date_of_first_office_hours = get_first_day_of_week_after_date(start_date, day_of_week)
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for date in get_all_dates(date_of_first_office_hours, self.semester_end_date):
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self.add_single_office_hour(person_id, date, start_time, end_time)
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def add_office_hours(self, person_id, day_of_week, start_time, end_time):
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self.add_remaining_office_hours(person_id, self.semester_start_date, day_of_week, start_time, end_time)
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#modify_single_office_hour
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def modify_single_office_hour(self, person_id, old_date, old_start_time, old_end_time, new_date, new_start_time, new_end_time):
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# Check if person_id exists and has office hours
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if person_id in self.office_hours and old_date in self.office_hours[person_id]:
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current_office_hours = self.office_hours[person_id][old_date]
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for index, office_hour in enumerate(current_office_hours):
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if office_hour['start_time'] == old_start_time and office_hour['end_time'] == old_end_time:
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# Modify the office hour to new_date, new_start_time, new_end_time
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self.office_hours[person_id][old_date][index] = {'start_time': new_start_time, 'end_time': new_end_time}
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# Remove the old office hour if new date is different
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if old_date != new_date:
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self.office_hours[person_id][new_date] = self.office_hours[person_id].get(new_date, [])
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self.office_hours[person_id][new_date].append({'start_time': new_start_time, 'end_time': new_end_time})
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del self.office_hours[person_id][old_date][index]
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if not self.office_hours[person_id][old_date]:
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del self.office_hours[person_id][old_date]
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return True # Successfully modified the office hour
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return False # Unable to modify the office hour
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#modify_remaining_office_hours
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#
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"""
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def modify_remaining_office_hours(modify_single_office_hour(self, person_id, start_date, old_start_time, old_end_time, new_day_of_week, new_start_time, new_end_time))
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date_of_first_office_hours = get_first_day_of_week_after_date(start_date, old_day_of_week)
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for date in get_all_dates(date_of_first_office_hours, self.semester_end_date):
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self.modify_single_office_hour(person_id, date, old_start_time, old_end_time, new_date, new_start_time, new_end_time):
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"""
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#modify_office_hours
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#remove_single_office_hour
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def remove_single_office_hour(self, person_id, date, start_time, end_time):
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if person_id in self.office_hours and date in self.office_hours[person_id]:
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current_office_hours = self.office_hours[person_id][date]
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for index, office_hour in enumerate(current_office_hours):
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if office_hour['start_time'] == start_time and office_hour['end_time'] == end_time:
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del self.office_hours[person_id][date][index]
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if not self.office_hours[person_id][date]:
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del self.office_hours[person_id][date]
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return True # Successfully removed the office hour
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return False # Unable to remove the office hour
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#remove_remaining_office_hours
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def remove_remaining_office_hours(self, person_id, start_date, day_of_week, start_time, end_time):
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current_date = start_date
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while current_date <= self.semester_end_date:
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if current_date.weekday() == day_of_week:
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self.remove_single_office_hour(person_id, current_date, start_time, end_time)
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current_date += timedelta(days=1)
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#remove_office_hours # self, person_id, date, start_time, end_time, additional=False):
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def remove_office_hours(self, person_id, day_of_week, start_time, end_time):
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self.remove_remaining_office_hours( person_id, self.semester_start, day_of_week, start_time, end_time)
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def pretty_print_office_hours(self):
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for person_id, person_schedule in self.office_hours.items():
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print(person_schedule)
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for date, office_hours in person_schedule.items():
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print(f"\tDate: {date.strftime('%Y-%m-%d')}")
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print("\tOffice Hours:")
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for hour in office_hours:
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print(f"\t\tStart Time: {hour['start_time']} - End Time: {hour['end_time']}")
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# Example usage:
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semester_start = datetime(2024, 1, 3)
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semester_end = datetime(2024, 5, 31)
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ta_schedule = {'day_of_week': 'Monday', 'start_time': '09:00 AM', 'end_time': '11:00 AM'}
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scheduler = OfficeHoursScheduler(semester_start, semester_end, ta_schedule)
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#Assignment Example:
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scheduler.add_office_hours('Matt', 'Thursday', '10:00 AM', '11:00 AM')
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try:
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scheduler.add_single_office_hour('Max', None, '11:00 AM', '12:00 PM')
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scheduler.add_single_office_hour('Max', None, '11:00 AM', '12:00 PM')
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scheduler.add_single_office_hour('Max', None, '11:00 AM', '12:00 PM')
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except:
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print("Classic None")
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# try:
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# scheduler.add_single_office_hour('Max', datetime(0, 0, 0), '11:00 AM', '12:00 PM')
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# scheduler.add_single_office_hour('Max', datetime(0, 0, 0), '11:00 AM', '12:00 PM')
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# scheduler.add_single_office_hour('Max', datetime(0, 0, 0), '11:00 AM', '12:00 PM')
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# except:
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# print("Classic None")
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# scheduler.modify_single_office_hour('Matt', datetime(2024, 1, 4), '10:00 AM', '11:00 AM', datetime(2024, 1, 5), '6:00 PM', '7:00 PM')
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print(scheduler.pretty_print_office_hours())
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#scheduler.add_office_hour(1, datetime(2024, 1, 10), '09:00 AM', '11:00 AM') #next Wednesday
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#scheduler.add_office_hour(1, datetime(2024, 1, 12), '10:00 AM', '12:00 PM') #next Fridat
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#scheduler.modify_office_hour(1, datetime(2024, 1, 10), '10:00 AM', '12:00 PM')
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#scheduler.remove_office_hour(1, datetime(2024, 1, 10))
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#scheduler.remove_remaining_office_hours(1, datetime(2024, 1, 10))
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#scheduler.modify_remaining_office_hours(1, datetime(2024, 1, 10), '01:00 PM', '03:00 PM')

‎pythonProblems/l4ugh/Dockerfile‎

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FROM php:8.2-apache
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RUN apt-get update && apt -y install mariadb-server && apt-get install -y libpng-dev python3 python3-pip libfontconfig nano
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RUN docker-php-ext-install mysqli
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COPY src /var/www/html/
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COPY app.py /
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RUN pip3 install pip==22.3.1 --break-system-packages
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RUN pip3 install mysql-connector-python flask
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COPY init.sh /
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COPY init.db /
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RUN chmod +x /init.sh
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EXPOSE 80
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ENTRYPOINT [ "/bin/bash", "/init.sh"]

‎pythonProblems/l4ugh/app.py‎

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from flask import Flask, request
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import mysql.connector
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import hashlib
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app = Flask(__name__)
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# MySQL connection configuration
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mysql_host = "127.0.0.1"
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mysql_user = "root"
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mysql_password = "root"
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mysql_db = "ctf"
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def authenticate_user(username, password):
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try:
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conn = mysql.connector.connect(
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host=mysql_host,
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user=mysql_user,
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password=mysql_password,
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database=mysql_db
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)
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cursor = conn.cursor()
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query = "SELECT * FROM users WHERE username = %s AND password = %s"
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cursor.execute(query, (username, password))
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result = cursor.fetchone()
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cursor.close()
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conn.close()
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return result
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except mysql.connector.Error as error:
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print("Error while connecting to MySQL", error)
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return None
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@app.route('/login', methods=['POST'])
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def handle_request():
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try:
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username = request.form.get('username')
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password = hashlib.md5(request.form.get(
44+
'password').encode()).hexdigest()
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# Authenticate user
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user_data = authenticate_user(username, password)
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if user_data:
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return "0xL4ugh{Test_Flag}"
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else:
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return "Invalid credentials"
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except:
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return "internal error happened"
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if __name__ == '__main__':
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app.run(host='0.0.0.0', port=5000, debug=True)

‎pythonProblems/l4ugh/init.db‎

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--
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-- Database: `CTF`
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--
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CREATE DATABASE IF NOT EXISTS `CTF` DEFAULT CHARACTER SET latin1 COLLATE latin1_swedish_ci;
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USE `CTF`;
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-- --------------------------------------------------------
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--
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-- Table structure for table `users`
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--
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DROP TABLE IF EXISTS `users`;
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CREATE TABLE IF NOT EXISTS `users` (
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`id` varchar(50) NOT NULL,
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`username` varchar(20) NOT NULL,
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`password` varchar(50) NOT NULL
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) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=66 ;
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insert into users(id,username,password) values('1','admin','21232f297a57a5a743894a0e4a801fc3');
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‎pythonProblems/l4ugh/init.sh‎

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#!/bin/sh
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service mariadb start && service apache2 start
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USER="root"
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PASSWORD="root"
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echo "Creating new user ${MYSQL_USER} ..."
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mysql -uroot -e "CREATE USER '${USER}'@'localhost' IDENTIFIED BY '${PASSWORD}';"
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echo "Granting privileges..."
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mysql -uroot -e "GRANT ALL PRIVILEGES ON *.* TO '${USER}'@'localhost';"
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mysql -uroot -e "GRANT FILE ON *.* TO '${USER}'@'localhost';"
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mysql -uroot -e "FLUSH PRIVILEGES;"
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echo "Done! Permissions granted"
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mysql -u$USER -p$PASSWORD -e "CREATE database CTF;"
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mysql -u$USER -p$PASSWORD CTF < /init.db
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echo "All done."
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sleep 5
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python3 -u /app.py

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