feat: add comprehensive input validation for all user inputs#976
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Peolite001 wants to merge 1 commit into
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feat: add comprehensive input validation for all user inputs#976Peolite001 wants to merge 1 commit into
Peolite001 wants to merge 1 commit into
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Implement client-side validation for all Nestera user inputs to improve UX and security. Includes real-time validation, XSS prevention, and accessible error messaging. Changes: - validators.ts: 15+ validation functions covering Stellar addresses, amounts, emails, names, descriptions, phone numbers, URLs, dates, group savings params, and XSS prevention - useValidation.ts: React hook for real-time validation with debouncing - ValidatedInput.tsx: Reusable accessible input component with error display, focus rings, and ARIA attributes - SavingsDepositForm.tsx: Example form demonstrating full validation integration with sanitization before API submission - validators.test.ts: 40+ unit tests covering edge cases, boundaries, and security scenarios Security: - sanitizeInput() removes script tags, event handlers, javascript: URLs - isXSSSafe() validates against XSS payload patterns - All form inputs sanitized before API submission - No unchecked arithmetic on untrusted values Accessibility: - WCAG 2.1 AA: 3.3.1 Error Identification, 3.3.2 Labels/Instructions, 3.3.3 Error Suggestion, 4.1.2 Name/Role/Value - aria-invalid, aria-describedby, aria-required on all inputs - role=alert on error messages - Visible focus indicators (3px outline) - High contrast and reduced motion support Refs: Devsol-01#852
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Add comprehensive client-side validation for all user inputs
Closes #852
Problem
Solution
Implemented a complete validation system with real-time feedback, XSS protection, and accessible error messaging.
Files Added/Modified
apps/web/src/lib/validation/validators.tsapps/web/src/lib/validation/useValidation.tsapps/web/src/lib/validation/index.tsapps/web/src/lib/validation/__tests__/validators.test.tsapps/web/src/components/ui/ValidatedInput.tsxapps/web/src/components/ui/ValidatedInput.module.cssapps/web/src/components/forms/SavingsDepositForm.tsxapps/web/src/components/forms/SavingsDepositForm.module.cssValidation Coverage
isValidStellarAddressisValidContractIdisValidSecretKeyisValidAmountisValidInterestRateisValidDurationisValidEmailisValidDisplayNameisValidGoalNameisValidDescriptionisValidPhoneNumberisValidURLisValidFutureDateisValidMemberCountisValidContributionFrequencySecurity
sanitizeInput()removes script tags, event handlers,javascript:URLs, iframesisXSSSafe()blocks XSS payload patternsAccessibility (WCAG 2.1 AA)
aria-invalid+ visible error messagesaria-describedby,aria-requiredTest Results