Input Validation and Data Sanitization Project

Table of Contents

• Introduction
• Inputs Requirements
• Get Started
• Example Inputs
• Example Outputs
• References

Introduction

The objective of this project is to use regular expressions to check and remove unwanted input ensuring that data conforms to security-related requirements.

Get Started

Here are some steps to get started:

1. Download or copy the Code.py file
2. Create a text or csv file anywhere on your pc and name it
3. In the file open() function (Line 4) provide the location of that text file you've created in step 1
4. Paste in samples (you can use the sample inputs provided here)
5. Run the code!

Inputs Requirements

Here are all the valid input requirements:

1. Student: 9 digits. acceptable formats: 000000000, 000 000 000
2. Password: a-z, A-Z, 0-9, ascii printable special characters, minimum 12 characters
3. Username: a-z, A-Z, 0-9, minimum 3 characters, maximum 20 characters
4. Email: username@domain.TLD, username, domain and TLD will conform to the rules above for a “username” field. There will only be one TLD (i.e. no multiples like domain.co.uk)
5. Previous: Confirm that this data field is identical to the previous line’s data field (excluding whitespace)
6. Phone: A North American phone number. Possible formats: 1234567890, 123.456.7890, 123-456-7890, (123) 456-7890
7. Postal: A Canadian postal code. Possible formats: A0A0A0, A0A 0A0
8. Address: A string field containing a-z, A-Z, 0-9, periods and dashes.
9. Binary: A single binary string, must contain only 1s and 0s with no breaks between digits
10. Biography: A generic string field. Report “no” only if the field contains any html tags.

Example Inputs

Here are some example inputs:

student,999999999

password,abcd1234

username,user123

email,testuser@testdomain.com

previous,testuse@testdomain.com

phone,123-456-7890

postal,M86 72Z

address,123 street blvd.

binary,11110000

bio, hello world

student,9999 9999

student, 111111111

password,123456abcdef!!

username,stevedave

previous,stevedave

phone,((416-111-1234

postal,H1R3T7

bio,Hello<script>World</script>

Example Outputs

The output will be a simple “yes” or “no” string. Here is what the example output would look like (based on the provided input in the above section):

yes

no

yes

yes

no

yes

no

yes

yes

yes

no

yes

yes

yes

yes

no

yes

no

References

Reference Link