34 行
1.2 KiB
Swift
34 行
1.2 KiB
Swift
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import Foundation
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import CryptoKit
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/// 错误指纹计算
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public enum Fingerprint {
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/// 计算错误指纹
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public static func compute(type: String, message: String, stacktrace: String) -> String {
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let normalizedMessage = normalizeMessage(message)
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let topFrames = extractTopFrames(stacktrace, count: 3)
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let payload = "\(type):\(normalizedMessage):\(topFrames)"
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let data = Data(payload.utf8)
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let hash = SHA256.hash(data: data)
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return hash.map { String(format: "%02x", $0) }.joined()
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}
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/// 归一化消息（数字替换为 N，长 hex 替换为 H）
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private static func normalizeMessage(_ message: String) -> String {
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var result = message
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// 替换数字
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result = result.replacingOccurrences(of: #"\d+"#, with: "N", options: .regularExpression)
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// 替换长 hex 字符串
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result = result.replacingOccurrences(of: #"[0-9a-fA-F]{8,}"#, with: "H", options: .regularExpression)
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return result
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}
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/// 提取堆栈顶部帧
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private static func extractTopFrames(_ stacktrace: String, count: Int) -> String {
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let lines = stacktrace.split(separator: "\n").prefix(count)
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return lines.joined(separator: "|")
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}
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}
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