Input Validation and Sanitazion

[venkat1924]

This PR addresses #57

Changes Made

Dependencies Added:

• Added marshmallow for input validation.
• Added bleach for input sanitization.
• Updated requirements.in and generated requirements.txt.

Validation and Sanitization Implementation:

• Introduced RankRequestSchema, KeywordExtractorSchema, and AIRequestSchema schemas using marshmallow to define the structure and validation rules for the input data.
• Used bleach to sanitize the input data to prevent XSS attacks.

Endpoint Updates:

• /rank Endpoint:
  • Added validation and sanitization for search_keywords.
  • Returns a 400 error if validation fails.
• /keyword_extractor Endpoint:
  • Added validation and sanitization for body.
  • Returns a 400 error if validation fails.
• /ai Endpoint:
  • Added validation and sanitization for path, type, and question.
  • Returns a 400 error if validation fails.

Standalone Validation and Sanitization Script:

• Created test_sanitization.py to simulate and test input validation and sanitization without needing the MongoDB connection. Currently, it is in the Utils directory.
• Included test data to demonstrate how harmful content is removed or neutralized.

[github-actions[bot]]

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