803de231ba
Restructured project for V2 refactor: **Structure Changes:** - Moved all V1 code to orig/ folder (preserved with git mv) - Created docs/planning/ directory - Added orig/README_V1.md explaining V1 preservation **Planning Documents:** - 00_V2_MASTER_PLAN.md: Complete architecture overview - Executive summary of critical V1 issues - High-level component architecture diagrams - 5-phase implementation roadmap - Success metrics and risk mitigation - 07_TASK_BREAKDOWN.md: Atomic task breakdown - 99+ hours of detailed tasks - Every task < 2 hours (atomic) - Clear dependencies and success criteria - Organized by implementation phase **V2 Key Improvements:** - Per-exchange parsers (factory pattern) - Multi-layer strict validation - Multi-index pool cache - Background validation pipeline - Comprehensive observability **Critical Issues Addressed:** - Zero address tokens (strict validation + cache enrichment) - Parsing accuracy (protocol-specific parsers) - No audit trail (background validation channel) - Inefficient lookups (multi-index cache) - Stats disconnection (event-driven metrics) Next Steps: 1. Review planning documents 2. Begin Phase 1: Foundation (P1-001 through P1-010) 3. Implement parsers in Phase 2 4. Build cache system in Phase 3 5. Add validation pipeline in Phase 4 6. Migrate and test in Phase 5 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
55 lines
1.6 KiB
Go
55 lines
1.6 KiB
Go
package security
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import (
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"fmt"
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"math"
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)
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// SafeUint64ToUint32 converts uint64 to uint32 with overflow check
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func SafeUint64ToUint32(value uint64) (uint32, error) {
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if value > math.MaxUint32 {
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return 0, fmt.Errorf("value %d exceeds maximum uint32 value %d", value, math.MaxUint32)
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}
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return uint32(value), nil
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}
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// SafeUint64ToInt64 converts uint64 to int64 with bounds check
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func SafeUint64ToInt64(value uint64) (int64, error) {
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if value > math.MaxInt64 {
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return 0, fmt.Errorf("value %d exceeds maximum int64 value %d", value, math.MaxInt64)
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}
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return int64(value), nil
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}
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// SafeUint64ToUint32WithDefault converts uint64 to uint32 with overflow check and default value
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func SafeUint64ToUint32WithDefault(value uint64, defaultValue uint32) uint32 {
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if value > math.MaxUint32 {
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return defaultValue
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}
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return uint32(value)
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}
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// SafeAddUint64 adds two uint64 values with overflow check
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func SafeAddUint64(a, b uint64) (uint64, error) {
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if a > math.MaxUint64-b {
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return 0, fmt.Errorf("addition overflow: %d + %d exceeds maximum uint64 value", a, b)
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}
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return a + b, nil
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}
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// SafeSubtractUint64 subtracts b from a with underflow check
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func SafeSubtractUint64(a, b uint64) (uint64, error) {
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if a < b {
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return 0, fmt.Errorf("subtraction underflow: %d - %d results in negative value", a, b)
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}
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return a - b, nil
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}
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// SafeMultiplyUint64 multiplies two uint64 values with overflow check
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func SafeMultiplyUint64(a, b uint64) (uint64, error) {
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if b != 0 && a > math.MaxUint64/b {
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return 0, fmt.Errorf("multiplication overflow: %d * %d exceeds maximum uint64 value", a, b)
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}
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return a * b, nil
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}
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