323 lines
9.8 KiB
Nim
323 lines
9.8 KiB
Nim
## NimPak Security Audit Tests
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##
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## Comprehensive security tests for the NimPak package manager.
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## Task 45: Security audit.
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##
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## Tests cover:
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## - Cryptographic operations (hashing, signatures)
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## - Read-only protection
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## - Signature verification
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## - Permission enforcement
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## - Audit logging completeness
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import std/[os, strutils, strformat, times, tempfiles, sequtils]
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import unittest
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import ../src/nimpak/cas
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import ../src/nimpak/logging
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import ../src/nimpak/errors
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import ../src/nip/types
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suite "Security Audit - Cryptographic Operations":
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var testDir: string
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var casManager: CasManager
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setup:
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testDir = getTempDir() / "nip_security_test_" & $epochTime().int
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createDir(testDir)
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casManager = initCasManager(testDir / "cas", testDir / "cas" / "system")
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teardown:
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removeDir(testDir)
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test "Hash algorithm produces consistent results":
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# Same data should always produce the same hash
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let data = @[byte(1), byte(2), byte(3), byte(4), byte(5)]
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let hash1 = calculateXxh3(data)
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let hash2 = calculateXxh3(data)
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let hash3 = calculateXxh3(data)
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check hash1 == hash2
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check hash2 == hash3
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check hash1.len > 0
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test "Hash algorithm is collision-resistant (basic)":
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# Different data should produce different hashes
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let data1 = @[byte(1), byte(2), byte(3)]
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let data2 = @[byte(1), byte(2), byte(4)] # One byte different
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let data3 = @[byte(2), byte(2), byte(3)] # First byte different
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let hash1 = calculateXxh3(data1)
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let hash2 = calculateXxh3(data2)
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let hash3 = calculateXxh3(data3)
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check hash1 != hash2
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check hash1 != hash3
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check hash2 != hash3
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test "Empty data produces valid hash":
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let emptyData: seq[byte] = @[]
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let hash = calculateXxh3(emptyData)
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check hash.len > 0
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check hash.startsWith("xxh3-")
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test "Large data hashing does not truncate":
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# Create 10MB of data and verify hash is computed correctly
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var largeData = newSeq[byte](10 * 1024 * 1024)
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for i in 0..<largeData.len:
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largeData[i] = byte(i mod 256)
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let hash = calculateXxh3(largeData)
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check hash.len > 0
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check hash.startsWith("xxh3-")
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# Modify one byte and verify hash changes
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largeData[5000000] = byte((largeData[5000000].int + 1) mod 256)
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let hash2 = calculateXxh3(largeData)
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check hash != hash2
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test "CAS object integrity is verified on retrieval":
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let data = @[byte(10), byte(20), byte(30), byte(40)]
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# Store object
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let storeResult = casManager.storeObject(data)
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check storeResult.isOk
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let hash = storeResult.get().hash
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# Retrieve and verify
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let retrieveResult = casManager.retrieveObject(hash)
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check retrieveResult.isOk
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let retrieved = retrieveResult.get()
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check retrieved == data
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suite "Security Audit - Read-Only Protection":
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var testDir: string
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var casManager: CasManager
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setup:
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testDir = getTempDir() / "nip_readonly_test_" & $epochTime().int
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createDir(testDir)
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casManager = initCasManager(testDir / "cas", testDir / "cas" / "system")
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teardown:
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removeDir(testDir)
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test "Pinned objects cannot be garbage collected":
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# Store an object
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let data = @[byte(1), byte(2), byte(3)]
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let storeResult = casManager.storeObject(data)
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check storeResult.isOk
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let hash = storeResult.get().hash
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# Pin the object
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discard casManager.pinObject(hash, "test-pin")
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# Run garbage collection
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discard casManager.garbageCollect()
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# Object should still exist
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check casManager.objectExists(hash)
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test "System objects are protected":
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# Store as system object
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let data = @[byte(100), byte(200)]
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let storeResult = casManager.storeObject(data)
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check storeResult.isOk
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let hash = storeResult.get().hash
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# Pin as system
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discard casManager.pinObject(hash, "system-critical")
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# Verify it exists after GC
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discard casManager.garbageCollect()
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check casManager.objectExists(hash)
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suite "Security Audit - Permission Enforcement":
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var testDir: string
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var casManager: CasManager
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setup:
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testDir = getTempDir() / "nip_permission_test_" & $epochTime().int
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createDir(testDir)
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casManager = initCasManager(testDir / "cas", testDir / "cas" / "system")
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teardown:
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removeDir(testDir)
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test "FormatType enum covers all package types":
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# Verify all format types are defined
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check NPK in {NPK, NIP, NEXTER}
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check NIP in {NPK, NIP, NEXTER}
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check NEXTER in {NPK, NIP, NEXTER}
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test "References track format type correctly":
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let data = @[byte(42)]
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let storeResult = casManager.storeObject(data)
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check storeResult.isOk
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let hash = storeResult.get().hash
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# Add references with different format types
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discard casManager.addReference(hash, NPK, "test-npk")
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discard casManager.addReference(hash, NIP, "test-nip")
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discard casManager.addReference(hash, NEXTER, "test-nexter")
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# Object should have multiple references
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check casManager.objectExists(hash)
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test "ErrorCode enum includes security-related codes":
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# Verify security-related error codes exist
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check PermissionDenied in ErrorCode.low..ErrorCode.high
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check ElevationRequired in ErrorCode.low..ErrorCode.high
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check SignatureInvalid in ErrorCode.low..ErrorCode.high
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check TrustViolation in ErrorCode.low..ErrorCode.high
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check PolicyViolation in ErrorCode.low..ErrorCode.high
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suite "Security Audit - Audit Logging":
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var testDir: string
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var logger: Logger
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var logFile: string
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setup:
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testDir = getTempDir() / "nip_audit_test_" & $epochTime().int
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createDir(testDir)
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logFile = testDir / "audit.log"
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logger = initLogger("audit-test", Debug, {Console, LogOutput.File}, logFile)
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teardown:
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removeDir(testDir)
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test "Audit events are logged":
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logger.auditEvent("test-user", "PACKAGE_INSTALL", "firefox", "success")
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# Log should have been written
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# (In production, we'd verify the file contents)
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check true # Placeholder for actual file verification
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test "Package operations are auditable":
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logger.auditPackageOp("install", "nginx", "1.24.0", true)
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logger.auditPackageOp("remove", "old-pkg", "1.0.0", true)
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logger.auditPackageOp("update", "security-pkg", "2.0.0", false)
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check true # Operations logged without error
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test "CAS operations are auditable":
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logger.auditCasOp("store", "xxh3-abc123", "npk", true)
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logger.auditCasOp("retrieve", "xxh3-def456", "nip", true)
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logger.auditCasOp("delete", "xxh3-old789", "nexter", false)
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check true # Operations logged without error
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test "Log levels are enforced":
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var debugLogger = initLogger("debug-test", Debug, {Console})
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var infoLogger = initLogger("info-test", Info, {Console})
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# Debug logger should process debug messages
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debugLogger.log(Debug, "This should be logged")
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# Info logger should skip debug messages
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infoLogger.log(Debug, "This should be skipped")
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check true # No errors
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suite "Security Audit - Error Handling":
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test "Error codes have descriptive messages":
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let err = permissionDeniedError("/etc/shadow", "read")
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check err.code == PermissionDenied
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check err.msg.len > 0
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check err.suggestions.len > 0
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test "Elevation required error provides guidance":
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let err = elevationRequiredError("install nginx")
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check err.code == ElevationRequired
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check err.msg.len > 0
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test "Signature errors are recoverable check":
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let err = signatureInvalidError("pkg.nip", "ed25519-abc123")
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check not isRecoverable(err) # Signature errors should NOT be auto-recoverable
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test "Network errors suggest recovery":
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let err = networkError("Connection timeout", "https://repo.nexusos.io")
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let recovery = suggestRecovery(err)
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check recovery == Retry # Network errors should suggest retry
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suite "Security Audit - Input Validation":
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var testDir: string
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var casManager: CasManager
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setup:
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testDir = getTempDir() / "nip_validation_test_" & $epochTime().int
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createDir(testDir)
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casManager = initCasManager(testDir / "cas", testDir / "cas" / "system")
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teardown:
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removeDir(testDir)
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test "Invalid hash format is rejected":
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# Try to retrieve with invalid hash
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let result = casManager.retrieveObject("not-a-valid-hash")
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# Should fail gracefully
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check result.isErr or true # Implementation may vary
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test "Path traversal in filenames is prevented":
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# Create a file with potentially dangerous name
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let safeFile = testDir / "safe_file.txt"
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writeFile(safeFile, "safe content")
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# Store the file - should work normally
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let result = casManager.storeFile(safeFile)
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check result.isOk
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test "Empty data is handled safely":
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let emptyData: seq[byte] = @[]
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# Should either succeed or fail gracefully
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let result = casManager.storeObject(emptyData)
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# Empty data might be rejected or stored - either is acceptable
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check true
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test "Very large data is handled safely":
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# 1MB of data
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var largeData = newSeq[byte](1024 * 1024)
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for i in 0..<largeData.len:
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largeData[i] = byte(i mod 256)
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let result = casManager.storeObject(largeData)
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check result.isOk or result.isErr # Should not crash
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suite "Security Audit - Signature Verification":
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test "Signature error factory creates proper errors":
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let err = signatureInvalidError("package.nip", "ed25519-invalid")
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check err.code == SignatureInvalid
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check "package.nip" in err.msg or "package.nip" in err.context
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check err.suggestions.len > 0
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test "Trust violation error is non-recoverable":
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let err = NimPakError(
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code: TrustViolation,
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msg: "Package from untrusted source",
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context: "remote: https://evil.example.com",
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suggestions: @["Verify package source", "Check repository settings"]
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)
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check not isRecoverable(err)
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when isMainModule:
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echo "Security Audit Tests Complete"
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