1.0 能用

2026-10-24 14:48:59 +08:00
commit eea818f5f4
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+package net.bluemangoo.indpjsk.vpn
+
+import android.util.Log
+
+/**
+ * Rust core_vpn 的 JNI 桥。
+ *
+ * 契约（由 Rust lib.rs 实现）：
+ *   runCapture(jint tunFd, jstring targetHosts, jstring path, jstring savePath) -> String?
+ *     - 阻塞直到抓包结束
+ *     - tunFd 的所有权【仍在 Kotlin 侧】，Rust 内部用 BorrowedAsyncDevice 借用，不得 close()
+ *     - targetHosts 是逗号分隔的域名白名单（一个步骤可能对应多个上游域名）
+ *     - 返回非 null = 抓到目标请求，值是命中的原始完整 URL（https://host/path?query），文件已写入 savePath
+ *     - 返回 null   = 失败 / 被 requestStop 打断 / 未匹配
+ *
+ *   requestStop() -> void
+ *     - 立即返回，仅设置原子停止标志，使阻塞中的 runCapture 尽快返回 false
+ *
+ *   nativeLog(String)（Kotlin -> Rust 回调的落地端）
+ *     - Rust 通过 JNIEnv.call_static_method(".../VpnBridge", "nativeLog", ...) 调用
+ *     - 用于把 TLS 握手 / 匹配结果等关键日志写进 UI 日志框
+ */
+object VpnBridge {
+
+    private const val TAG = "VpnBridge"
+    private var loaded = false
+
+    init {
+        loaded = try {
+            System.loadLibrary("core_vpn")
+            true
+        } catch (t: Throwable) {
+            Log.e(TAG, "loadLibrary core_vpn failed", t)
+            false
+        }
+    }
+
+    fun isAvailable(): Boolean = loaded
+
+    @JvmStatic
+    external fun runCapture(
+        tunFd: Int,
+        targetHosts: String,
+        targetPath: String,
+        savePath: String
+    ): String?
+
+    @JvmStatic
+    external fun requestStop()
+
+    /** 供 Rust JNI 回调写入日志框；Rust 侧通过 call_static_method 调用本方法 */
+    @Suppress("unused")
+    @JvmStatic
+    fun nativeLog(level: String, msg: String) {
+        when (level) {
+            "error" -> VpnLog.error(msg)
+            "warn" -> VpnLog.warn(msg)
+            "info" -> VpnLog.info(msg)
+            else -> VpnLog.info(msg)
+        }
+    }
+}