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6424951 7989c98 6424951 7989c98 924784f 6424951 924784f 6424951 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 | """Input validation for user-provided data."""
import re
from pydantic import BaseModel, Field, field_validator
class PlayerSearchInput(BaseModel):
"""Validated player search input."""
search_term: str = Field(
...,
min_length=1,
max_length=100,
description="Player name search term",
)
@field_validator("search_term")
@classmethod
def validate_reasonable_characters(cls, v: str) -> str:
"""Ensure search term contains only reasonable characters.
Args:
v: Input search term
Returns:
Validated and stripped search term
Raises:
ValueError: If invalid characters found
"""
v = v.strip()
if not v:
raise ValueError("Search term cannot be empty.")
# Allow letters, numbers, spaces, hyphens, periods, and apostrophes
# (e.g., "O'Neal", "J.R. Smith")
if not re.match(r"^[a-zA-Z0-9 \-.']+$", v):
raise ValueError(
"Search term contains invalid characters. "
"Please use only letters, numbers, spaces, hyphens, "
"periods, and apostrophes."
)
return v
def validate_search_term(term: str) -> str | None:
"""Validate a player search term.
Args:
term: Raw search input
Returns:
Validated and cleaned search term, or None if invalid
"""
try:
validated = PlayerSearchInput(search_term=term)
return validated.search_term
except ValueError:
return None
def is_valid_search_term(term: str) -> bool:
"""Check if a search term is valid without raising exceptions.
Args:
term: Raw search input
Returns:
True if valid, False otherwise
"""
return validate_search_term(term) is not None
|