mirror of
https://github.com/a244573118/WeChatIntercept.git
synced 2026-06-14 05:25:08 +08:00
1133 lines
39 KiB
Bash
Executable File
1133 lines
39 KiB
Bash
Executable File
#!/bin/bash
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#
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# ============================================================
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# 微信防撤回一键安装脚本
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# ============================================================
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#
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# 适用版本: 微信 4.1.9 (CFBundleVersion: 268602)
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# 微信 4.1.10 (CFBundleVersion: 268824)
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# 适用平台: macOS (Apple Silicon + Intel)
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# 依赖工具: clang, codesign, python3 (macOS 系统自带)
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#
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# 使用方法:
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# chmod +x patch.sh
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# ./patch.sh # 安装防撤回
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# ./patch.sh --uninstall # 卸载（恢复原始微信）
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#
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# 原理:
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# 通过 DYLD 注入一个运行时 hook 动态库，
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# 拦截微信的 isRevokeMessage() 函数，
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# 区分对方撤回和自己撤回：
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# - 对方撤回 → 返回 false（消息保留不被删除）
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# - 自己撤回 → 返回 true（正常处理，不会闪退）
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#
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# 4.1.9: 通过写入内建 hook dispatch slot (BSS 区域) 实现
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# 4.1.10: dispatch slot 机制已移除，改用 inline trampoline patch
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#
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# ============================================================
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set -e
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WECHAT_APP="/Applications/WeChat.app"
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WECHAT_BIN="$WECHAT_APP/Contents/MacOS/WeChat"
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DYLIB_DST="$WECHAT_APP/Contents/Resources/WeChatAntiRevoke.dylib"
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DYLIB_INSTALL_NAME="@executable_path/../Resources/WeChatAntiRevoke.dylib"
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print_banner() {
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echo ""
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echo "=============================="
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echo " 微信防撤回安装工具"
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echo " 适用: macOS / 微信 4.1.9+"
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echo " 支持: Apple Silicon + Intel"
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echo "=============================="
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echo ""
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}
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check_environment() {
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if [ ! -d "$WECHAT_APP" ]; then
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echo "[ERROR] 未找到微信: $WECHAT_APP"
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exit 1
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fi
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SHORT_VER=$(defaults read "$WECHAT_APP/Contents/Info.plist" CFBundleShortVersionString 2>/dev/null)
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VERSION=$(defaults read "$WECHAT_APP/Contents/Info.plist" CFBundleVersion 2>/dev/null)
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if [ -z "$SHORT_VER" ]; then
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echo "[ERROR] 无法读取微信版本号，请检查 /Applications/WeChat.app 是否完整"
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exit 1
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fi
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# 大版本校验：仅支持 4.1.x 系列（C++ 架构）
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case "$SHORT_VER" in
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4.1.*)
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echo "[INFO] 微信版本: $SHORT_VER ($VERSION)"
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;;
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*)
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echo "[ERROR] 不支持的微信大版本: $SHORT_VER"
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echo " 本工具仅支持 4.1.x 系列"
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echo " 旧版 3.x 请使用 Install.sh"
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echo " 如果你认为这是误判，请提交 issue"
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exit 1
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;;
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esac
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if ! command -v clang &>/dev/null; then
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echo "[ERROR] 未找到 clang，请安装 Xcode Command Line Tools:"
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echo " xcode-select --install"
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exit 1
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fi
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}
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kill_wechat() {
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if pgrep -x WeChat >/dev/null 2>&1; then
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echo "[INFO] 关闭微信..."
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killall WeChat 2>/dev/null || true
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sleep 2
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fi
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}
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remove_provenance() {
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echo "[INFO] 尝试解除系统文件保护..."
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TMP_DIR=$(mktemp -d)
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tar --no-xattrs -cf - -C /Applications WeChat.app | tar -xf - -C "$TMP_DIR/"
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rm -rf "$WECHAT_APP"
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mv "$TMP_DIR/WeChat.app" "$WECHAT_APP"
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rm -rf "$TMP_DIR"
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# 递归清除残留 xattr（best-effort）
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xattr -cr "$WECHAT_APP" 2>/dev/null || true
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sudo xattr -cr "$WECHAT_APP" 2>/dev/null || true
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# 检查结果（仅警告，不阻断安装）
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if xattr "$WECHAT_APP" 2>/dev/null | grep -q "com.apple.provenance"; then
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echo "[WARN] provenance 未能完全清除（macOS Sequoia 可能会自动重新附加）"
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echo "[INFO] 将通过 entitlements 绕过此限制"
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else
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echo "[INFO] 文件保护已解除"
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fi
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}
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compile_dylib() {
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echo "[INFO] 编译 hook 动态库..."
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# 内嵌 hook.m 源码
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local SRC_FILE="/tmp/antirevoke_hook_src.m"
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rm -f "$SRC_FILE"
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cat > "$SRC_FILE" << 'HOOK_SOURCE'
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#import <Foundation/Foundation.h>
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#import <mach-o/dyld.h>
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#import <mach-o/loader.h>
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#import <mach/mach.h>
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#import <sys/mman.h>
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#import <libkern/OSCacheControl.h>
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#import <stdint.h>
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#import <string.h>
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#import <stdio.h>
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#import <sys/stat.h>
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// ── 日志 ─────────────────────────────────────────────────────
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static FILE *g_logFile = NULL;
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static void log_open(void) {
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g_logFile = fopen("/tmp/antirevoke_debug.log", "w");
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}
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#define ARLOG(fmt, ...) do { \
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if (g_logFile) { fprintf(g_logFile, "[AntiRevoke] " fmt "\n", ##__VA_ARGS__); fflush(g_logFile); } \
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} while(0)
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// ── 常量 ─────────────────────────────────────────────────────
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static const char *kDylibSuffix_Resources = "Resources/wechat.dylib";
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static const char *kDylibSuffix_Frameworks = "Frameworks/wechat.dylib";
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static const int32_t kRevokeType = 0x2712; // 10002
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// 配置文件路径：~/.config/antirevoke/config
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// 格式：每行一个 key=value
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// notify=1 开启通知（默认）
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// notify=0 关闭通知
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static char g_config_path[512] = {0};
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// ── 版本地址表 ───────────────────────────────────────────────
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static const uintptr_t k419_SlotVA_arm64 = 0x9301838;
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static const uintptr_t k4110_FuncVA_arm64 = 0x44FFE20;
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static const uintptr_t k4110_FuncVA_x86_64 = 0x4B4E9A0;
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static const uintptr_t k419_FuncVA_x86_64 = 0x4AF08D0;
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// ── 获取当前登录用户 ID ──────────────────────────────────────
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static char g_my_id[64] = {0};
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static _Bool g_my_id_loaded = 0;
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static void load_my_user_id(void) {
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if (g_my_id_loaded) return;
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g_my_id_loaded = 1;
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const char *home = getenv("HOME");
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if (!home) return;
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char loginDir[1024];
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snprintf(loginDir, sizeof(loginDir),
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"%s/Library/Containers/com.tencent.xinWeChat/Data/Documents/app_data/login", home);
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@autoreleasepool {
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NSFileManager *fm = [NSFileManager defaultManager];
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NSString *dirPath = [NSString stringWithUTF8String:loginDir];
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NSArray *contents = [fm contentsOfDirectoryAtPath:dirPath error:nil];
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if (!contents || [contents count] == 0) return;
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NSString *latestName = nil;
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NSDate *latestDate = nil;
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for (NSString *name in contents) {
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if ([name hasPrefix:@"."]) continue;
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NSString *fullPath = [dirPath stringByAppendingPathComponent:name];
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BOOL isDir = NO;
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if (![fm fileExistsAtPath:fullPath isDirectory:&isDir] || !isDir) continue;
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NSString *keyInfo = [fullPath stringByAppendingPathComponent:@"key_info.dat"];
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NSDictionary *attrs = [fm fileExistsAtPath:keyInfo]
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? [fm attributesOfItemAtPath:keyInfo error:nil]
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: [fm attributesOfItemAtPath:fullPath error:nil];
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NSDate *modDate = attrs[NSFileModificationDate];
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if (!latestDate || (modDate && [modDate compare:latestDate] == NSOrderedDescending)) {
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latestDate = modDate;
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latestName = name;
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}
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}
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if (latestName && [latestName length] >= 3 && [latestName length] < sizeof(g_my_id)) {
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strncpy(g_my_id, [latestName UTF8String], sizeof(g_my_id) - 1);
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ARLOG("用户: %s", g_my_id);
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}
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}
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}
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// ── 配置 ─────────────────────────────────────────────────────
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static void init_config_path(void) {
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const char *home = getenv("HOME");
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if (home) {
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snprintf(g_config_path, sizeof(g_config_path), "%s/.config/antirevoke/config", home);
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}
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}
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static _Bool is_notify_enabled(void) {
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if (g_config_path[0] == '\0') return 1; // 配置路径未初始化，默认开启
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FILE *f = fopen(g_config_path, "r");
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if (!f) return 1; // 配置文件不存在，默认开启
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char line[128];
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_Bool enabled = 1;
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while (fgets(line, sizeof(line), f)) {
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if (strncmp(line, "notify=0", 8) == 0) { enabled = 0; break; }
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}
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fclose(f);
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return enabled;
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}
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static void send_notification(const char *text) {
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if (!is_notify_enabled()) return;
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// 对英文双引号和反斜杠做转义
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char *escaped = (char *)malloc(1024);
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if (!escaped) return;
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int j = 0;
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for (int i = 0; text[i] && j < 1022; i++) {
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if (text[i] == '"' || text[i] == '\\') escaped[j++] = '\\';
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escaped[j++] = text[i];
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}
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escaped[j] = '\0';
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dispatch_async(dispatch_get_global_queue(0, 0), ^{
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FILE *sf = fopen("/tmp/antirevoke_notify.scpt", "w");
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if (sf) {
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fprintf(sf, "display notification \"%s\" with title \"WeChatIntercept\"\n", escaped);
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fclose(sf);
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system("osascript /tmp/antirevoke_notify.scpt");
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}
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free(escaped);
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});
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}
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// ── 检查 sender 偏移是否仍有效 ───────────────────────────────
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// 仅检查前 4 字节是否为可打印 ASCII（微信 ID 总以可打印字符开头）
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// 缩小检查范围避免误判撤回流程中的二次调用（其 sender 可能是 std::string 元数据）
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static _Bool is_valid_sender(const char *s) {
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if (s[0] == '\0') return 1; // 空字符串 = 自己撤回确认
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for (int i = 0; i < 4; i++) {
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unsigned char c = (unsigned char)s[i];
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if (c < 0x20 || c > 0x7E) return 0; // 非可打印字符
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}
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return 1;
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}
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// ── hook 函数 ────────────────────────────────────────────────
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__attribute__((visibility("default")))
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_Bool hook_isRevokeMessage(void *msg) {
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if (msg == NULL) return 0;
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int32_t msgType = *(int32_t *)((uint8_t *)msg + 0x0C);
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if (msgType != kRevokeType) return 0;
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load_my_user_id();
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const char *sender = (const char *)((uint8_t *)msg + 0x18);
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// 检查 sender 偏移是否仍有效（前 4 字节必须可打印 ASCII）
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// 失效时静默放行（return 1），避免影响撤回流程的内部状态
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// 真正的偏移失效会持续触发，达到阈值时弹一次"催更新"通知
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if (!is_valid_sender(sender)) {
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ARLOG("WARN: sender 区域非可打印 ASCII，跳过此次调用");
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// 累计失效次数，达到阈值时弹通知催更新（仅一次）
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static int g_invalid_count = 0;
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static _Bool g_warned = 0;
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g_invalid_count++;
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if (g_invalid_count >= 5 && !g_warned) {
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g_warned = 1;
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char *cmd = (char *)malloc(1024);
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if (cmd) {
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snprintf(cmd, 1024,
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"osascript -e 'display notification \"sender 偏移已失效，快去催 WeChatIntercept 作者更新适配\" "
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"with title \"WeChatIntercept 需更新\"' &");
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dispatch_async(dispatch_get_global_queue(0, 0), ^{
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system(cmd);
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free(cmd);
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});
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}
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}
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return 1; // 静默放行，不影响业务流程
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}
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// 自己撤回 → 放行
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if (sender[0] == '\0') return 1;
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if (g_my_id[0] != '\0' && strncmp(sender, g_my_id, strlen(g_my_id)) == 0) return 1;
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// 对方撤回 → 阻止
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ARLOG("拦截: %.20s", sender);
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// 提取通知内容
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char notify_text[256] = {0};
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#if defined(__arm64__) || defined(__aarch64__)
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// arm64：从 msg+0x130 读取 XML body，提取 replacemsg（含用户昵称）
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uint64_t xml_ptr = *(uint64_t *)((uint8_t *)msg + 0x130);
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uint64_t xml_len = *(uint64_t *)((uint8_t *)msg + 0x138);
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if (xml_ptr > 0x100000000ULL && xml_len > 0 && xml_len < 4096) {
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const char *xml_body = (const char *)xml_ptr;
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const char *cs = strstr(xml_body, "<![CDATA[");
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const char *ce = cs ? strstr(cs, "]]>") : NULL;
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if (cs && ce) {
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cs += 9;
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size_t len = ce - cs;
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if (len > 0 && len < sizeof(notify_text) - 1) {
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memcpy(notify_text, cs, len);
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notify_text[len] = '\0';
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}
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}
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}
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#endif
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char content[512] = {0};
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if (notify_text[0] != '\0')
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snprintf(content, sizeof(content), "拦截到%s", notify_text);
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else
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snprintf(content, sizeof(content), "拦截到 %s 撤回了一条消息", sender);
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send_notification(content);
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return 0;
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}
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// ── 查找 wechat.dylib 的 ASLR slide 和 mach_header ───────────
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// 优先匹配 Resources/wechat.dylib（核心库），Frameworks/ 为 stub 不可用
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static uintptr_t find_wechat_slide(const struct mach_header **out_header) {
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uint32_t count = _dyld_image_count();
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uintptr_t fallback = 0;
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const struct mach_header *fallback_header = NULL;
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size_t resLen = strlen(kDylibSuffix_Resources);
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size_t fwLen = strlen(kDylibSuffix_Frameworks);
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for (uint32_t i = 0; i < count; i++) {
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const char *name = _dyld_get_image_name(i);
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if (!name) continue;
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size_t len = strlen(name);
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if (len >= resLen && strcmp(name + len - resLen, kDylibSuffix_Resources) == 0) {
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if (out_header) *out_header = _dyld_get_image_header(i);
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return (uintptr_t)_dyld_get_image_vmaddr_slide(i);
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}
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if (len >= fwLen && strcmp(name + len - fwLen, kDylibSuffix_Frameworks) == 0) {
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fallback = (uintptr_t)_dyld_get_image_vmaddr_slide(i);
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fallback_header = _dyld_get_image_header(i);
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}
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}
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if (out_header) *out_header = fallback_header;
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return fallback;
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}
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// ── 解析 wechat.dylib 的 __TEXT 段范围 ───────────────────────
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// 返回 1 = 成功，0 = 失败
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static _Bool find_text_segment(const struct mach_header *header, uintptr_t slide,
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uintptr_t *out_start, size_t *out_size) {
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if (!header) return 0;
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const uint8_t *p = (const uint8_t *)header;
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uint32_t ncmds;
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if (header->magic == MH_MAGIC_64) {
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p += sizeof(struct mach_header_64);
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ncmds = ((const struct mach_header_64 *)header)->ncmds;
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} else if (header->magic == MH_MAGIC) {
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p += sizeof(struct mach_header);
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ncmds = header->ncmds;
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} else {
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return 0;
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}
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for (uint32_t i = 0; i < ncmds; i++) {
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const struct load_command *lc = (const struct load_command *)p;
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if (lc->cmd == LC_SEGMENT_64) {
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const struct segment_command_64 *seg = (const struct segment_command_64 *)p;
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if (strcmp(seg->segname, "__TEXT") == 0) {
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*out_start = (uintptr_t)seg->vmaddr + slide;
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*out_size = (size_t)seg->vmsize;
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return 1;
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}
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} else if (lc->cmd == LC_SEGMENT) {
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const struct segment_command *seg = (const struct segment_command *)p;
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if (strcmp(seg->segname, "__TEXT") == 0) {
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*out_start = (uintptr_t)seg->vmaddr + slide;
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*out_size = (size_t)seg->vmsize;
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return 1;
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}
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}
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p += lc->cmdsize;
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}
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return 0;
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}
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// ── 特征码搜索：在 __TEXT 段中查找 isRevokeMessage 函数 ──────
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// arm64 特征：5 条指令的 isRevokeMessage（无 dispatch slot 的 4.1.10 形态）
|
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// LDR W8, [X0, #0xC]; MOV W9, #0x2712; CMP W8, W9; CSET W0, EQ; RET
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// 返回函数 VA（slide + offset），未找到返回 0
|
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static uintptr_t scan_isRevokeMessage_arm64(uintptr_t text_start, size_t text_size) {
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static const uint32_t pattern[5] = {
|
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0xB9400C08u, 0x5284E249u, 0x6B09011Fu, 0x1A9F17E0u, 0xD65F03C0u
|
||
};
|
||
const uint32_t *base = (const uint32_t *)text_start;
|
||
size_t count = text_size / 4;
|
||
if (count < 5) return 0;
|
||
|
||
for (size_t i = 0; i + 5 <= count; i++) {
|
||
if (base[i] == pattern[0] &&
|
||
base[i+1] == pattern[1] &&
|
||
base[i+2] == pattern[2] &&
|
||
base[i+3] == pattern[3] &&
|
||
base[i+4] == pattern[4]) {
|
||
return text_start + i * 4;
|
||
}
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
// x86_64 特征：完整函数（16 字节）
|
||
// 55 48 89 E5 (push rbp; mov rbp,rsp)
|
||
// 81 7F 0C 12 27 00 00 (cmp [rdi+0xC], 0x2712)
|
||
// 0F 94 C0 (sete al)
|
||
// 5D C3 (pop rbp; ret)
|
||
static uintptr_t scan_isRevokeMessage_x86_64(uintptr_t text_start, size_t text_size) {
|
||
static const uint8_t pattern[] = {
|
||
0x55, 0x48, 0x89, 0xE5,
|
||
0x81, 0x7F, 0x0C, 0x12, 0x27, 0x00, 0x00,
|
||
0x0F, 0x94, 0xC0,
|
||
0x5D, 0xC3
|
||
};
|
||
const uint8_t *base = (const uint8_t *)text_start;
|
||
if (text_size < sizeof(pattern)) return 0;
|
||
|
||
for (size_t i = 0; i + sizeof(pattern) <= text_size; i++) {
|
||
if (base[i] == pattern[0] &&
|
||
memcmp(base + i, pattern, sizeof(pattern)) == 0) {
|
||
return text_start + i;
|
||
}
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
// ── 版本检测 ─────────────────────────────────────────────────
|
||
// 已知支持的 build：4.1.9 (268602)、4.1.10 (268824)
|
||
static const char *kKnownBuilds[] = { "268602", "268824", NULL };
|
||
|
||
static _Bool is_known_build(const char *build) {
|
||
if (!build) return 0;
|
||
for (int i = 0; kKnownBuilds[i]; i++) {
|
||
if (strcmp(build, kKnownBuilds[i]) == 0) return 1;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
// 读取 Info.plist 中的 CFBundleVersion + CFBundleShortVersionString
|
||
static void read_wechat_version(char *short_ver, size_t short_sz,
|
||
char *build, size_t build_sz) {
|
||
short_ver[0] = '\0';
|
||
build[0] = '\0';
|
||
@autoreleasepool {
|
||
NSDictionary *info = [[NSBundle bundleWithPath:@"/Applications/WeChat.app"] infoDictionary];
|
||
NSString *sv = info[@"CFBundleShortVersionString"];
|
||
NSString *bv = info[@"CFBundleVersion"];
|
||
if (sv) strncpy(short_ver, [sv UTF8String], short_sz - 1);
|
||
if (bv) strncpy(build, [bv UTF8String], build_sz - 1);
|
||
}
|
||
}
|
||
|
||
// ── 内存保护工具 ─────────────────────────────────────────────
|
||
static kern_return_t make_rw(uintptr_t addr, size_t len) {
|
||
uintptr_t page = addr & ~(uintptr_t)0x3FFF;
|
||
size_t sz = (addr + len - page + 0x3FFF) & ~(size_t)0x3FFF;
|
||
return vm_protect(mach_task_self(), (vm_address_t)page, sz, 0,
|
||
VM_PROT_READ | VM_PROT_WRITE | VM_PROT_COPY);
|
||
}
|
||
static kern_return_t make_rx(uintptr_t addr, size_t len) {
|
||
uintptr_t page = addr & ~(uintptr_t)0x3FFF;
|
||
size_t sz = (addr + len - page + 0x3FFF) & ~(size_t)0x3FFF;
|
||
return vm_protect(mach_task_self(), (vm_address_t)page, sz, 0,
|
||
VM_PROT_READ | VM_PROT_EXECUTE);
|
||
}
|
||
|
||
// ── arm64 inline trampoline（20 字节）─────────────────────────
|
||
static _Bool install_arm64_trampoline(uintptr_t func_addr, uintptr_t hook_addr) {
|
||
kern_return_t kr = make_rw(func_addr, 20);
|
||
if (kr != KERN_SUCCESS) { ARLOG("ERROR: make_rw kr=%d", kr); return 0; }
|
||
|
||
uint32_t *p = (uint32_t *)func_addr;
|
||
p[0] = 0x58000050u; // LDR X16, #8
|
||
p[1] = 0xD61F0200u; // BR X16
|
||
*(uint64_t *)(func_addr + 8) = (uint64_t)hook_addr;
|
||
p[4] = 0xD503201Fu; // NOP
|
||
|
||
// 回读验证
|
||
if (*(volatile uint32_t *)func_addr != 0x58000050u) {
|
||
ARLOG("ERROR: 写入验证失败"); return 0;
|
||
}
|
||
|
||
sys_icache_invalidate((void *)func_addr, 20);
|
||
make_rx(func_addr, 20);
|
||
return 1;
|
||
}
|
||
|
||
// ── x86_64 inline trampoline（16 字节）───────────────────────
|
||
static _Bool install_x86_64_trampoline(uintptr_t func_addr, uintptr_t hook_addr) {
|
||
kern_return_t kr = make_rw(func_addr, 16);
|
||
if (kr != KERN_SUCCESS) { ARLOG("ERROR: x86_64 make_rw kr=%d", kr); return 0; }
|
||
|
||
uint8_t *p = (uint8_t *)func_addr;
|
||
p[0] = 0xFF; p[1] = 0x25; // JMP [RIP+0]
|
||
p[2] = p[3] = p[4] = p[5] = 0x00;
|
||
*(uint64_t *)(func_addr + 6) = (uint64_t)hook_addr;
|
||
p[14] = 0x90; p[15] = 0xC3;
|
||
|
||
if (*(volatile uint8_t *)func_addr != 0xFF) {
|
||
ARLOG("ERROR: x86_64 写入验证失败"); return 0;
|
||
}
|
||
|
||
__builtin___clear_cache((char *)func_addr, (char *)(func_addr + 16));
|
||
make_rx(func_addr, 16);
|
||
return 1;
|
||
}
|
||
|
||
// ── Hook 安装失败时通知用户 ─────────────────────────────────
|
||
static void notify_install_failed(const char *short_ver, const char *build, _Bool known_build) {
|
||
if (!is_notify_enabled()) return;
|
||
|
||
char *cmd = (char *)malloc(2048);
|
||
if (!cmd) return;
|
||
|
||
char title[64];
|
||
char body[512];
|
||
|
||
if (known_build) {
|
||
// 已知 build 但仍失败（极罕见）
|
||
snprintf(title, sizeof(title), "WeChatIntercept 异常");
|
||
snprintf(body, sizeof(body),
|
||
"已知版本 %s (%s) hook 安装失败，请查看 /tmp/antirevoke_debug.log",
|
||
short_ver, build);
|
||
} else {
|
||
// 未知 build：可能是版本变化或仅 build 号变化
|
||
snprintf(title, sizeof(title), "WeChatIntercept 需更新");
|
||
snprintf(body, sizeof(body),
|
||
"微信版本 %s (build %s) 未适配，防撤回功能已失效。请前往 GitHub 获取最新脚本",
|
||
short_ver, build);
|
||
}
|
||
|
||
// 转义 body 中的双引号和反斜杠
|
||
char escaped[1024];
|
||
int j = 0;
|
||
for (int i = 0; body[i] && j < (int)sizeof(escaped) - 2; i++) {
|
||
if (body[i] == '"' || body[i] == '\\') escaped[j++] = '\\';
|
||
escaped[j++] = body[i];
|
||
}
|
||
escaped[j] = '\0';
|
||
|
||
snprintf(cmd, 2048,
|
||
"osascript -e 'display notification \"%s\" with title \"%s\"' &",
|
||
escaped, title);
|
||
|
||
dispatch_async(dispatch_get_global_queue(0, 0), ^{
|
||
system(cmd);
|
||
free(cmd);
|
||
});
|
||
}
|
||
|
||
// ── 主 constructor ───────────────────────────────────────────
|
||
__attribute__((constructor))
|
||
static void hook_init(void) {
|
||
dispatch_after(
|
||
dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1.0 * NSEC_PER_SEC)),
|
||
dispatch_get_main_queue(), ^{
|
||
|
||
log_open();
|
||
init_config_path();
|
||
ARLOG("hook_init 启动");
|
||
|
||
// 读取微信版本
|
||
char short_ver[32] = {0};
|
||
char build[32] = {0};
|
||
read_wechat_version(short_ver, sizeof(short_ver), build, sizeof(build));
|
||
_Bool known_build = is_known_build(build);
|
||
ARLOG("微信版本: %s (build %s) %s", short_ver, build,
|
||
known_build ? "[已适配]" : "[未适配]");
|
||
|
||
const struct mach_header *header = NULL;
|
||
uintptr_t slide = find_wechat_slide(&header);
|
||
if (slide == 0) {
|
||
ARLOG("ERROR: 未找到 wechat.dylib");
|
||
notify_install_failed(short_ver, build, known_build);
|
||
return;
|
||
}
|
||
|
||
// 解析 __TEXT 段范围（用于特征码搜索）
|
||
uintptr_t text_start = 0;
|
||
size_t text_size = 0;
|
||
_Bool has_text = find_text_segment(header, slide, &text_start, &text_size);
|
||
ARLOG("slide=0x%lx __TEXT=[0x%lx, +0x%zx) found=%d",
|
||
(unsigned long)slide, (unsigned long)text_start, text_size, has_text);
|
||
|
||
uintptr_t hook = (uintptr_t)&hook_isRevokeMessage;
|
||
_Bool installed = 0;
|
||
|
||
#if defined(__arm64__) || defined(__aarch64__)
|
||
// 1. 先尝试硬编码地址（快速路径）
|
||
uintptr_t func_addr = 0;
|
||
uintptr_t func_4110 = slide + k4110_FuncVA_arm64;
|
||
uint32_t head_insn = *(volatile uint32_t *)func_4110;
|
||
|
||
if (head_insn == 0xB9400C08u) {
|
||
// 进一步验证完整 5 条指令特征码（避免误判）
|
||
uint32_t *p = (uint32_t *)func_4110;
|
||
if (p[1] == 0x5284E249u && p[2] == 0x6B09011Fu &&
|
||
p[3] == 0x1A9F17E0u && p[4] == 0xD65F03C0u) {
|
||
func_addr = func_4110;
|
||
ARLOG("快速路径命中: 0x%lx", (unsigned long)func_addr);
|
||
}
|
||
}
|
||
|
||
// 2. 快速路径失败 → 尝试 4.1.9 slot
|
||
if (func_addr == 0) {
|
||
void **slot = (void **)(slide + k419_SlotVA_arm64);
|
||
// 简单验证：检查 slot 周围是否在 __DATA 段（不严格）
|
||
// 先记录，后面如果特征码搜索也失败再尝试 slot
|
||
}
|
||
|
||
// 3. 特征码搜索（兜底）
|
||
if (func_addr == 0 && has_text) {
|
||
ARLOG("快速路径未命中，开始特征码搜索...");
|
||
uintptr_t found = scan_isRevokeMessage_arm64(text_start, text_size);
|
||
if (found) {
|
||
func_addr = found;
|
||
ARLOG("特征码搜索找到: 0x%lx (offset 0x%lx)",
|
||
(unsigned long)func_addr, (unsigned long)(func_addr - slide));
|
||
}
|
||
}
|
||
|
||
// 4. 安装 trampoline
|
||
if (func_addr != 0) {
|
||
if (install_arm64_trampoline(func_addr, hook)) {
|
||
ARLOG("arm64 trampoline 安装成功");
|
||
installed = 1;
|
||
}
|
||
} else {
|
||
// 5. 最后尝试 4.1.9 slot 方式
|
||
void **slot = (void **)(slide + k419_SlotVA_arm64);
|
||
uintptr_t page = (uintptr_t)slot & ~(uintptr_t)0x3FFF;
|
||
kern_return_t kr = vm_protect(mach_task_self(), (vm_address_t)page, 0x4000,
|
||
0, VM_PROT_READ | VM_PROT_WRITE);
|
||
if (kr == KERN_SUCCESS) {
|
||
*slot = (void *)hook;
|
||
ARLOG("4.1.9 arm64 slot 写入（fallback）");
|
||
installed = 1;
|
||
}
|
||
}
|
||
|
||
#elif defined(__x86_64__)
|
||
uintptr_t func_addr = 0;
|
||
uintptr_t func_4110_x86 = slide + k4110_FuncVA_x86_64;
|
||
uintptr_t func_419_x86 = slide + k419_FuncVA_x86_64;
|
||
const uint32_t kFuncHead = 0xE5894855u;
|
||
|
||
// 1. 快速路径
|
||
if (*(volatile uint32_t *)func_4110_x86 == kFuncHead) {
|
||
func_addr = func_4110_x86;
|
||
} else if (*(volatile uint32_t *)func_419_x86 == kFuncHead) {
|
||
func_addr = func_419_x86;
|
||
}
|
||
|
||
// 2. 特征码搜索
|
||
if (func_addr == 0 && has_text) {
|
||
ARLOG("快速路径未命中，开始特征码搜索...");
|
||
uintptr_t found = scan_isRevokeMessage_x86_64(text_start, text_size);
|
||
if (found) {
|
||
func_addr = found;
|
||
ARLOG("特征码搜索找到: 0x%lx (offset 0x%lx)",
|
||
(unsigned long)func_addr, (unsigned long)(func_addr - slide));
|
||
}
|
||
}
|
||
|
||
// 3. 安装 trampoline
|
||
if (func_addr != 0) {
|
||
if (install_x86_64_trampoline(func_addr, hook)) {
|
||
ARLOG("x86_64 trampoline 安装成功");
|
||
installed = 1;
|
||
}
|
||
}
|
||
#endif
|
||
|
||
if (!installed) {
|
||
ARLOG("ERROR: hook 安装失败 - 微信版本 %s (build %s) 未适配",
|
||
short_ver, build);
|
||
notify_install_failed(short_ver, build, known_build);
|
||
} else {
|
||
ARLOG("就绪，等待撤回消息...");
|
||
}
|
||
});
|
||
}
|
||
HOOK_SOURCE
|
||
|
||
clang -arch arm64 -arch x86_64 -shared -framework Foundation \
|
||
-o "$DYLIB_DST" \
|
||
-install_name "$DYLIB_INSTALL_NAME" \
|
||
"$SRC_FILE" 2>&1
|
||
|
||
rm -f "$SRC_FILE"
|
||
|
||
if [ ! -f "$DYLIB_DST" ]; then
|
||
echo "[ERROR] 编译失败"
|
||
exit 1
|
||
fi
|
||
echo "[INFO] 编译成功"
|
||
}
|
||
|
||
inject_dylib() {
|
||
echo "[INFO] 注入动态库到微信..."
|
||
|
||
python3 << 'INJECT_SCRIPT'
|
||
import struct
|
||
|
||
wechat_path = '/Applications/WeChat.app/Contents/MacOS/WeChat'
|
||
dylib_name = b'@executable_path/../Resources/WeChatAntiRevoke.dylib\x00'
|
||
while len(dylib_name) % 4 != 0:
|
||
dylib_name += b'\x00'
|
||
|
||
cmd_size = 24 + len(dylib_name)
|
||
while cmd_size % 4 != 0:
|
||
cmd_size += 1
|
||
dylib_name += b'\x00'
|
||
|
||
with open(wechat_path, 'r+b') as f:
|
||
fat_magic = struct.unpack('>I', f.read(4))[0]
|
||
assert fat_magic == 0xCAFEBABE
|
||
narch = struct.unpack('>I', f.read(4))[0]
|
||
|
||
slices = []
|
||
for i in range(narch):
|
||
cpu = struct.unpack('>I', f.read(4))[0]
|
||
sub = struct.unpack('>I', f.read(4))[0]
|
||
offset = struct.unpack('>I', f.read(4))[0]
|
||
size = struct.unpack('>I', f.read(4))[0]
|
||
align = struct.unpack('>I', f.read(4))[0]
|
||
slices.append((cpu, offset, size))
|
||
|
||
for cpu, slice_offset, size in slices:
|
||
f.seek(slice_offset)
|
||
magic = struct.unpack('<I', f.read(4))[0]
|
||
if magic != 0xFEEDFACF:
|
||
continue
|
||
f.read(12)
|
||
ncmds_pos = f.tell()
|
||
ncmds = struct.unpack('<I', f.read(4))[0]
|
||
sizeofcmds_pos = f.tell()
|
||
sizeofcmds = struct.unpack('<I', f.read(4))[0]
|
||
f.read(8)
|
||
|
||
# Check if already injected
|
||
header_end = slice_offset + 32
|
||
f.seek(header_end)
|
||
already = False
|
||
for i in range(ncmds):
|
||
pos = f.tell()
|
||
cmd = struct.unpack('<I', f.read(4))[0]
|
||
cs = struct.unpack('<I', f.read(4))[0]
|
||
if cmd == 0xC:
|
||
no = struct.unpack('<I', f.read(4))[0]
|
||
f.seek(pos + no)
|
||
name = b''
|
||
while True:
|
||
b = f.read(1)
|
||
if b == b'\x00': break
|
||
name += b
|
||
if b'WeChatAntiRevoke' in name:
|
||
already = True
|
||
break
|
||
f.seek(pos + cs)
|
||
if already:
|
||
continue
|
||
|
||
insert_pos = slice_offset + 32 + sizeofcmds
|
||
lc = struct.pack('<I', 0xC)
|
||
lc += struct.pack('<I', cmd_size)
|
||
lc += struct.pack('<I', 24)
|
||
lc += struct.pack('<I', 2)
|
||
lc += struct.pack('<I', 0x10000)
|
||
lc += struct.pack('<I', 0x10000)
|
||
lc += dylib_name
|
||
while len(lc) < cmd_size:
|
||
lc += b'\x00'
|
||
|
||
f.seek(insert_pos)
|
||
f.write(lc)
|
||
f.seek(ncmds_pos)
|
||
f.write(struct.pack('<I', ncmds + 1))
|
||
f.seek(sizeofcmds_pos)
|
||
f.write(struct.pack('<I', sizeofcmds + cmd_size))
|
||
|
||
print("ok")
|
||
INJECT_SCRIPT
|
||
|
||
echo "[INFO] 注入完成"
|
||
}
|
||
|
||
resign_app() {
|
||
echo "[INFO] 重签名（注入 entitlements 绕过 Library Validation）..."
|
||
|
||
# 创建 entitlements 文件
|
||
local ENT_FILE="/tmp/antirevoke_ent.plist"
|
||
cat > "$ENT_FILE" << 'ENTITLEMENTS'
|
||
<?xml version="1.0" encoding="UTF-8"?>
|
||
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
|
||
<plist version="1.0">
|
||
<dict>
|
||
<key>com.apple.security.cs.disable-library-validation</key>
|
||
<true/>
|
||
<key>com.apple.security.cs.allow-unsigned-executable-memory</key>
|
||
<true/>
|
||
</dict>
|
||
</plist>
|
||
ENTITLEMENTS
|
||
|
||
# 1. 签名 dylib（adhoc）
|
||
codesign --force --sign - "$DYLIB_DST" 2>/dev/null
|
||
|
||
# 2. 整体 deep 签名（先处理所有子组件）
|
||
codesign --force --deep --sign - "$WECHAT_APP" 2>/dev/null
|
||
|
||
# 3. 最后单独给主程序签名并注入 entitlements（覆盖 deep 签名的结果）
|
||
# 这样 entitlements 不会被后续操作覆盖
|
||
codesign --force --sign - --entitlements "$ENT_FILE" "$WECHAT_BIN" 2>/dev/null
|
||
|
||
# 清除 xattr（best-effort）
|
||
xattr -cr "$WECHAT_APP" 2>/dev/null || true
|
||
|
||
# 验证 entitlements 是否注入成功
|
||
if codesign -d --entitlements - "$WECHAT_BIN" 2>&1 | grep -q "disable-library-validation"; then
|
||
echo "[INFO] 重签名完成（Library Validation 已禁用）"
|
||
else
|
||
echo "[WARN] entitlements 可能未生效，请确认 SIP 状态"
|
||
fi
|
||
|
||
rm -f "$ENT_FILE"
|
||
}
|
||
|
||
verify_install() {
|
||
echo "[INFO] 验证安装..."
|
||
|
||
local FAIL=0
|
||
|
||
# 1. dylib 文件存在
|
||
if [ ! -f "$DYLIB_DST" ]; then
|
||
echo "[ERROR] dylib 文件不存在: $DYLIB_DST"
|
||
FAIL=1
|
||
fi
|
||
|
||
# 2. LC_LOAD_DYLIB 注入成功
|
||
if ! otool -l "$WECHAT_BIN" 2>/dev/null | grep -q "WeChatAntiRevoke"; then
|
||
echo "[ERROR] LC_LOAD_DYLIB 未注入到主程序"
|
||
FAIL=1
|
||
fi
|
||
|
||
# 3. provenance 已清除
|
||
if xattr "$WECHAT_APP" 2>/dev/null | grep -q "com.apple.provenance"; then
|
||
echo "[WARN] WeChat.app 仍有 provenance 标记（重签名可能重新添加）"
|
||
xattr -d com.apple.provenance "$WECHAT_APP" 2>/dev/null || true
|
||
fi
|
||
if xattr "$WECHAT_BIN" 2>/dev/null | grep -q "com.apple.provenance"; then
|
||
echo "[WARN] 主程序仍有 provenance 标记"
|
||
xattr -d com.apple.provenance "$WECHAT_BIN" 2>/dev/null || true
|
||
fi
|
||
if xattr "$DYLIB_DST" 2>/dev/null | grep -q "com.apple.provenance"; then
|
||
echo "[WARN] dylib 仍有 provenance 标记"
|
||
xattr -d com.apple.provenance "$DYLIB_DST" 2>/dev/null || true
|
||
fi
|
||
|
||
# 4. 签名验证
|
||
if ! codesign -v "$DYLIB_DST" 2>/dev/null; then
|
||
echo "[ERROR] dylib 签名无效"
|
||
FAIL=1
|
||
fi
|
||
if ! codesign -v "$WECHAT_BIN" 2>/dev/null; then
|
||
echo "[ERROR] 主程序签名无效"
|
||
FAIL=1
|
||
fi
|
||
|
||
# 5. 运行时加载测试（启动微信、等待后检查 dylib 是否在内存中）
|
||
echo "[INFO] 启动微信进行加载验证（约 8 秒）..."
|
||
open "$WECHAT_APP"
|
||
sleep 8
|
||
|
||
local PID=$(pgrep -x WeChat 2>/dev/null)
|
||
if [ -z "$PID" ]; then
|
||
echo "[ERROR] 微信未能启动"
|
||
FAIL=1
|
||
else
|
||
if vmmap "$PID" 2>/dev/null | grep -q "AntiRevoke"; then
|
||
echo "[INFO] dylib 已成功加载到微信进程"
|
||
else
|
||
echo "[ERROR] dylib 未加载到微信进程！可能原因："
|
||
echo " - macOS 安全策略阻止"
|
||
echo " - 签名不一致"
|
||
FAIL=1
|
||
fi
|
||
fi
|
||
|
||
# 6. 检查 hook 安装日志（/tmp/antirevoke_debug.log）
|
||
local LOG_FILE="/tmp/antirevoke_debug.log"
|
||
if [ -f "$LOG_FILE" ] && [ -s "$LOG_FILE" ]; then
|
||
local LOG_OUTPUT=$(cat "$LOG_FILE")
|
||
if echo "$LOG_OUTPUT" | grep -q "trampoline 安装完成"; then
|
||
echo "[INFO] Hook 安装成功（trampoline 已写入）"
|
||
elif echo "$LOG_OUTPUT" | grep -q "slot 写入完成"; then
|
||
echo "[INFO] Hook 安装成功（slot 方式）"
|
||
elif echo "$LOG_OUTPUT" | grep -q "写入验证失败"; then
|
||
echo "[ERROR] trampoline 写入验证失败"
|
||
FAIL=1
|
||
elif echo "$LOG_OUTPUT" | grep -q "make_rw 失败"; then
|
||
echo "[ERROR] 代码页写入被系统拒绝（vm_protect 失败）"
|
||
FAIL=1
|
||
elif echo "$LOG_OUTPUT" | grep -q "未找到 wechat.dylib"; then
|
||
echo "[ERROR] 未找到 wechat.dylib"
|
||
FAIL=1
|
||
elif echo "$LOG_OUTPUT" | grep -q "均未匹配\|hook 失败"; then
|
||
echo "[ERROR] hook 安装失败"
|
||
FAIL=1
|
||
fi
|
||
else
|
||
echo "[WARN] hook 日志文件未生成，hook_init 可能尚未执行"
|
||
fi
|
||
echo "[INFO] 调试日志: cat /tmp/antirevoke_debug.log"
|
||
|
||
if [ "$FAIL" -ne 0 ]; then
|
||
echo ""
|
||
echo "[WARN] 安装验证未完全通过，请检查上述错误"
|
||
echo ""
|
||
fi
|
||
}
|
||
|
||
do_install() {
|
||
print_banner
|
||
check_environment
|
||
|
||
# 检查是否已安装
|
||
if [ -f "$DYLIB_DST" ]; then
|
||
echo "[INFO] 检测到已安装，将重新安装..."
|
||
fi
|
||
|
||
kill_wechat
|
||
|
||
# 无条件清除 provenance（即使 .app 顶层无标记，内层文件也可能有）
|
||
# 重打包是幂等操作，不会造成损坏
|
||
remove_provenance
|
||
rm -f "$DYLIB_DST" 2>/dev/null || true
|
||
|
||
compile_dylib
|
||
inject_dylib
|
||
resign_app
|
||
verify_install
|
||
|
||
# 创建默认配置（开启通知）
|
||
local CONFIG_DIR="$HOME/.config/antirevoke"
|
||
mkdir -p "$CONFIG_DIR"
|
||
if [ ! -f "$CONFIG_DIR/config" ]; then
|
||
echo "notify=1" > "$CONFIG_DIR/config"
|
||
fi
|
||
|
||
echo ""
|
||
echo "=============================="
|
||
echo " 安装成功！"
|
||
echo "=============================="
|
||
echo ""
|
||
echo " 功能: 对方撤回的消息将保留可见"
|
||
echo " 自己撤回消息正常工作"
|
||
echo ""
|
||
echo " 通知开关:"
|
||
echo " $0 openNotify 开启撤回通知"
|
||
echo " $0 closeNotify 关闭撤回通知"
|
||
echo ""
|
||
echo " 卸载: $0 --uninstall"
|
||
echo ""
|
||
}
|
||
|
||
do_debug() {
|
||
print_banner
|
||
echo "[INFO] 调试模式（不安装 hook，仅签名允许 lldb attach）"
|
||
|
||
check_environment
|
||
kill_wechat
|
||
remove_provenance
|
||
|
||
# 删除已有的 hook dylib（确保无 hook）
|
||
rm -f "$DYLIB_DST" 2>/dev/null || true
|
||
|
||
# 签名（带 get-task-allow，允许 lldb attach）
|
||
echo "[INFO] 重签名（注入调试 entitlements）..."
|
||
local ENT_FILE=$(mktemp /tmp/entitlements_XXXXXX.plist)
|
||
cat > "$ENT_FILE" << 'ENTITLEMENTS'
|
||
<?xml version="1.0" encoding="UTF-8"?>
|
||
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
|
||
<plist version="1.0">
|
||
<dict>
|
||
<key>com.apple.security.cs.disable-library-validation</key>
|
||
<true/>
|
||
<key>com.apple.security.cs.allow-unsigned-executable-memory</key>
|
||
<true/>
|
||
<key>com.apple.security.get-task-allow</key>
|
||
<true/>
|
||
</dict>
|
||
</plist>
|
||
ENTITLEMENTS
|
||
|
||
codesign --force --deep --sign - "$WECHAT_APP" 2>/dev/null
|
||
codesign --force --sign - --entitlements "$ENT_FILE" "$WECHAT_BIN" 2>/dev/null
|
||
xattr -cr "$WECHAT_APP" 2>/dev/null || true
|
||
rm -f "$ENT_FILE"
|
||
|
||
echo "[INFO] 启动微信..."
|
||
open "$WECHAT_APP"
|
||
sleep 3
|
||
|
||
echo ""
|
||
echo "=============================="
|
||
echo " 调试模式已启用"
|
||
echo "=============================="
|
||
echo ""
|
||
echo " 微信无 hook，撤回流程完整执行"
|
||
echo " 可使用 lldb attach 进行逆向分析"
|
||
echo ""
|
||
echo " 命令："
|
||
echo " lldb -p \$(pgrep -x WeChat)"
|
||
echo " image list wechat.dylib"
|
||
echo " # Resources 行地址 = slide"
|
||
echo " br set -a <slide+0x4D5FD70>"
|
||
echo " c"
|
||
echo ""
|
||
echo " 恢复防撤回: $0"
|
||
echo ""
|
||
}
|
||
|
||
do_uninstall() {
|
||
print_banner
|
||
echo "[INFO] 卸载防撤回插件..."
|
||
|
||
kill_wechat
|
||
|
||
# 删除 dylib
|
||
rm -f "$DYLIB_DST" 2>/dev/null || true
|
||
|
||
# 重新安装微信是最干净的卸载方式
|
||
echo "[INFO] 建议重新安装微信以完全恢复原始状态"
|
||
echo "[INFO] 或者删除 $DYLIB_DST 并重新签名"
|
||
|
||
if [ -f "$DYLIB_DST" ]; then
|
||
echo "[WARN] 无法删除 dylib，请手动重新安装微信"
|
||
else
|
||
resign_app 2>/dev/null || true
|
||
echo ""
|
||
echo "=============================="
|
||
echo " 已卸载（dylib 已删除）"
|
||
echo " 建议重新安装微信以彻底恢复"
|
||
echo "=============================="
|
||
fi
|
||
echo ""
|
||
}
|
||
|
||
CONFIG_DIR="$HOME/.config/antirevoke"
|
||
CONFIG_FILE="$CONFIG_DIR/config"
|
||
|
||
do_open_notify() {
|
||
mkdir -p "$CONFIG_DIR"
|
||
if grep -q "^notify=" "$CONFIG_FILE" 2>/dev/null; then
|
||
sed -i '' 's/^notify=.*/notify=1/' "$CONFIG_FILE"
|
||
else
|
||
echo "notify=1" >> "$CONFIG_FILE"
|
||
fi
|
||
echo "[INFO] 撤回通知已开启"
|
||
}
|
||
|
||
do_close_notify() {
|
||
mkdir -p "$CONFIG_DIR"
|
||
if grep -q "^notify=" "$CONFIG_FILE" 2>/dev/null; then
|
||
sed -i '' 's/^notify=.*/notify=0/' "$CONFIG_FILE"
|
||
else
|
||
echo "notify=0" >> "$CONFIG_FILE"
|
||
fi
|
||
echo "[INFO] 撤回通知已关闭"
|
||
}
|
||
|
||
# ======================== 入口 ========================
|
||
case "${1:-}" in
|
||
openNotify)
|
||
do_open_notify
|
||
;;
|
||
closeNotify)
|
||
do_close_notify
|
||
;;
|
||
--debug|-d)
|
||
do_debug
|
||
;;
|
||
--uninstall|-u)
|
||
do_uninstall
|
||
;;
|
||
--help|-h)
|
||
print_banner
|
||
echo "用法:"
|
||
echo " $0 安装防撤回"
|
||
echo " $0 openNotify 开启撤回通知"
|
||
echo " $0 closeNotify 关闭撤回通知"
|
||
echo " $0 --debug 调试模式（无 hook，允许 lldb）"
|
||
echo " $0 --uninstall 卸载"
|
||
echo " $0 --help 帮助"
|
||
;;
|
||
"")
|
||
do_install
|
||
;;
|
||
*)
|
||
echo "[ERROR] 未知参数: $1"
|
||
echo "用法: $0 [openNotify|closeNotify|--uninstall|--debug|--help]"
|
||
exit 1
|
||
;;
|
||
esac
|