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fix: replace objc_getClassList with objc_copyClassNamesForImage to av… #221

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Merged
e271828- merged 1 commit into from
May 7, 2026
Merged

fix: replace objc_getClassList with objc_copyClassNamesForImage to av… #221

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39 changes: 17 additions & 22 deletions HCaptcha/Classes/HCaptchaDebugInfo.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@
import Foundation
import CommonCrypto
import UIKit
import MachO

private extension String {
func jsSanitize() -> String {
Expand Down Expand Up @@ -51,31 +52,25 @@ class HCaptchaDebugInfo {
CC_MD5_Init(sysCtx)
CC_MD5_Init(appCtx)

let loadedCount = Int(min(objc_getClassList(nil, 0), 1024))
if loadedCount > 0 {
let classes = UnsafeMutablePointer<AnyClass?>.allocate(capacity: loadedCount)
defer { classes.deallocate() }
let imageCount = _dyld_image_count()
for imageIdx in 0..<imageCount {
guard let imageNamePtr = _dyld_get_image_name(imageIdx) else { continue }
let imagePath = String(cString: imageNamePtr)

_ = objc_getClassList(AutoreleasingUnsafeMutablePointer(classes), Int32(loadedCount))

for idx in 0..<loadedCount {
if let `class` = classes[idx] {
var info = Dl_info()
if dladdr(unsafeBitCast(`class`, to: UnsafeRawPointer.self), &info) != 0,
let imagePathPtr = info.dli_fname {
let imagePath = String(cString: imagePathPtr)
var md5Ctx = depsCtx
if imagePath.isSystemFramework {
md5Ctx = sysCtx
} else if let execPath = Bundle.main.executablePath, imagePath.hasPrefix(execPath) {
md5Ctx = appCtx
}

var md5Ctx = depsCtx
if imagePath.isSystemFramework {
md5Ctx = sysCtx
} else if let execPath = Bundle.main.executablePath, imagePath.hasPrefix(execPath) {
md5Ctx = appCtx
}
var classCount: UInt32 = 0
guard let classNames = objc_copyClassNamesForImage(imageNamePtr, &classCount) else { continue }
defer { free(classNames) }

let className = NSStringFromClass(`class`)
CC_MD5_Update(md5Ctx, className, CC_LONG(className.count))
}
}
for classIdx in 0..<Int(classCount) {
let className = String(cString: classNames[classIdx])
CC_MD5_Update(md5Ctx, className, CC_LONG(className.count))
}
}

Expand Down
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