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提取安装包的时候发现有腾讯御安全的壳，
脱壳
略过，腾讯还是比较好处理的
会员分析
教程不是很细致
直接用常量大法，到常量这里搜索会员
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会出现五个结果，后面四个选哪个点进去都可以。我这里以最后一个为例
其所在的 invoke 方法如下：(后面如无特色情况就直接用转Java代码了)
.method public final invoke()Lnet/pengtu/sxscq/dialog/ExportDialog;
.registers 10
.line 200
new-instance v8, Lnet/pengtu/sxscq/dialog/ExportDialog;
.line 201
iget-object v0, p0, Lnet/pengtu/sxscq/activity/PaperActivity$exportDialog$2;->this$0:Lnet/pengtu/sxscq/activity/PaperActivity;
invoke-static {v0}, Lnet/pengtu/sxscq/activity/PaperActivity;->access$getMActivity$p$s-1612100453(Lnet/pengtu/sxscq/activity/PaperActivity;)Landroidx/appcompat/app/AppCompatActivity;
move-result-object v0
const-string v1, "mActivity"
invoke-static {v0, v1}, Lkotlin/jvm/internal/Intrinsics;->checkNotNullExpressionValue(Ljava/lang/Object;Ljava/lang/String;)V
move-object v1, v0
check-cast v1, Landroid/content/Context;
.line 204
iget-object v0, p0, Lnet/pengtu/sxscq/activity/PaperActivity$exportDialog$2;->this$0:Lnet/pengtu/sxscq/activity/PaperActivity;
invoke-static {v0}, Lnet/pengtu/sxscq/activity/PaperActivity;->access$getInitViewModel$p(Lnet/pengtu/sxscq/activity/PaperActivity;)Lnet/pengtu/sxscq/vm/InitViewModel;
move-result-object v0
if-nez v0, :cond_1e
const-string v0, "initViewModel"
invoke-static {v0}, Lkotlin/jvm/internal/Intrinsics;->throwUninitializedPropertyAccessException(Ljava/lang/String;)V
const/4 v0, 0x0
:cond_1e
iget-object v0, v0, Lnet/pengtu/sxscq/vm/InitViewModel;->buy_btn_vip_tips:Landroidx/databinding/ObservableField;
invoke-virtual {v0}, Landroidx/databinding/ObservableField;->get()Ljava/lang/Object;
move-result-object v0
invoke-static {v0}, Ljava/lang/String;->valueOf(Ljava/lang/Object;)Ljava/lang/String;
move-result-object v4
.line 205
iget-object v0, p0, Lnet/pengtu/sxscq/activity/PaperActivity$exportDialog$2;->this$0:Lnet/pengtu/sxscq/activity/PaperActivity;
new-instance v5, Lnet/pengtu/sxscq/activity/PaperActivity$exportDialog$2$$ExternalSyntheticLambda0;
invoke-direct {v5, v0}, Lnet/pengtu/sxscq/activity/PaperActivity$exportDialog$2$$ExternalSyntheticLambda0;->(Lnet/pengtu/sxscq/activity/PaperActivity;)V
sget-object v6, Lnet/pengtu/sxscq/activity/PaperActivity$exportDialog$2$$ExternalSyntheticLambda2;->INSTANCE:Lnet/pengtu/sxscq/activity/PaperActivity$exportDialog$2$$ExternalSyntheticLambda2;
iget-object v0, p0, Lnet/pengtu/sxscq/activity/PaperActivity$exportDialog$2;->this$0:Lnet/pengtu/sxscq/activity/PaperActivity;
new-instance v7, Lnet/pengtu/sxscq/activity/PaperActivity$exportDialog$2$$ExternalSyntheticLambda1;
invoke-direct {v7, v0}, Lnet/pengtu/sxscq/activity/PaperActivity$exportDialog$2$$ExternalSyntheticLambda1;->(Lnet/pengtu/sxscq/activity/PaperActivity;)V
const-string v2, "普通用户仅可导出第一页，
开通会员后无限制导出全部内容
"
const-string v3, "导出提示"
move-object v0, v8
.line 200
invoke-direct/range {v0 .. v7}, Lnet/pengtu/sxscq/dialog/ExportDialog;->(Landroid/content/Context;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Lio/reactivex/functions/Action;Lio/reactivex/functions/Action;Lio/reactivex/functions/Action;)V
return-object v8
.end method
转Java
public final ExportDialog invoke() {
Context context = PaperActivity.access$getMActivity$p$s-1612100453(this.this$0);
Intrinsics.checkNotNullExpressionValue(context, "mActivity");
Context context2 = context;
InitViewModel access$getInitViewModel$p = PaperActivity.access$getInitViewModel$p(this.this$0);
if (access$getInitViewModel$p == null) {
Intrinsics.throwUninitializedPropertyAccessException("initViewModel");
access$getInitViewModel$p = null;
}
return new ExportDialog(context2, "普通用户仅可导出第一页，
开通会员后无限制导出全部内容
", "导出提示", String.valueOf(access$getInitViewModel$p.buy_btn_vip_tips.get()), new PaperActivity$exportDialog$2$.ExternalSyntheticLambda0(this.this$0), PaperActivity$exportDialog$2$.ExternalSyntheticLambda2.INSTANCE, new PaperActivity$exportDialog$2$.ExternalSyntheticLambda1(this.this$0));
}
看最后返回的ExportDialog对象的第四个参数的第一个参数access$getInitViewModel$p.buy_btn_vip_tips.get()
我们找到buy_btn_vip_tips跳转过去，看到他存在在一个初始化方法里面。
public void InitData(InitResp initBean) {
if (initBean != null) {
this.initUpdate.postValue(initBean.getUpdate());
this.share.set(initBean.getShare());
this.isLogin.set(initBean.getUserInfo() != null);
this.login.postValue(Boolean.valueOf(initBean.getUserInfo() != null));
this.buy_vip_tips.set(initBean.getBuy_vip_tips());
this.paper_upper_limit.set(initBean.getPaper_upper_limit());
this.font_upper_limit.set(initBean.getFont_upper_limit());
this.free_upper_limit.set(initBean.getFree_upper_limit());
this.buy_btn_vip_tips.set(initBean.getBuy_vip_btn_tips());
this.on_quick_login.postValue(Boolean.valueOf(initBean.getOn_quick_login() == 1));
if (initBean.getUserInfo() != null) {
this.nickname.set(initBean.getUserInfo().getNickname());
this.avatar.set(initBean.getUserInfo().getAvatar());
this.uid.set(initBean.getUserInfo().getUid());
this.vip.postValue(Boolean.valueOf(initBean.getUserInfo().getUser_type() == 1));
SPUtils.getInstance().put("VIP", initBean.getUserInfo().getUser_type() == 1);
this.isVip.set(initBean.getUserInfo().getUser_type() == 1);
this.user_type_str.set(initBean.getUserInfo().getUser_type_str());
this.expire_time_str.set(initBean.getUserInfo().getExpire_time_str());
return;
}
this.isVip.set(false);
}
}
注意initBean.getUserInfo() != null以下的部分，继续跳转，这次我们跳转该方法的参数InitResp
再次转Java
//
// Decompiled by Jadx - 619ms
//
package net.pengtu.sxscq.datasource.http.resp;
import net.pengtu.sxscq.bean.InitShare;
import net.pengtu.sxscq.bean.InitUpdate;
import net.pengtu.sxscq.bean.UserInfo;
public class InitResp {
private String buy_vip_btn_tips;
private String buy_vip_tips;
private int font_upper_limit;
private int free_upper_limit;
private int on_duomaomao_mode;
private int on_quick_login;
private int paper_upper_limit;
private InitShare share;
private InitUpdate update;
private UserInfo userinfo;
public int getFree_upper_limit() {
return this.free_upper_limit;
}
public void setFree_upper_limit(int free_upper_limit) {
this.free_upper_limit = free_upper_limit;
}
public int getOn_quick_login() {
return this.on_quick_login;
}
public void setOn_quick_login(int on_quick_login) {
this.on_quick_login = on_quick_login;
}
public String getBuy_vip_btn_tips() {
return this.buy_vip_btn_tips;
}
public void setBuy_vip_btn_tips(String buy_vip_btn_tips) {
this.buy_vip_btn_tips = buy_vip_btn_tips;
}
public int getOn_duomaomao_mode() {
return this.on_duomaomao_mode;
}
public void setOn_duomaomao_mode(int on_duomaomao_mode) {
this.on_duomaomao_mode = on_duomaomao_mode;
}
public int getPaper_upper_limit() {
return this.paper_upper_limit;
}
public void setPaper_upper_limit(int paper_upper_limit) {
this.paper_upper_limit = paper_upper_limit;
}
public int getFont_upper_limit() {
return this.font_upper_limit;
}
public void setFont_upper_limit(int font_upper_limit) {
this.font_upper_limit = font_upper_limit;
}
public String getBuy_vip_tips() {
return this.buy_vip_tips;
}
public void setBuy_vip_tips(String buy_vip_tips) {
this.buy_vip_tips = buy_vip_tips;
}
public UserInfo getUserInfo() {
return this.userinfo;
}
public void setUserInfo(UserInfo userInfo) {
this.userinfo = userInfo;
}
public InitUpdate getUpdate() {
return this.update;
}
public void setUpdate(InitUpdate update) {
this.update = update;
}
public InitShare getShare() {
return this.share;
}
public void setShare(InitShare share) {
this.share = share;
}
}
OK，应该是找到正主了，继续跳转UserInfo，看看有什么属性
//
// Decompiled by Jadx - 503ms
//
package net.pengtu.sxscq.bean;
public class UserInfo {
private String app_account_token;
private String avatar;
private long expire_time;
private String expire_time_str;
private String nickname;
private String uid;
private int user_type;
private String user_type_str;
public long getExpire_time() {
return this.expire_time;
}
public void setExpire_time(long expire_time) {
this.expire_time = expire_time;
}
public String getUid() {
return this.uid;
}
public void setUid(String uid) {
this.uid = uid;
}
public String getApp_account_token() {
return this.app_account_token;
}
public void setApp_account_token(String app_account_token) {
this.app_account_token = app_account_token;
}
public String getAvatar() {
return this.avatar;
}
public void setAvatar(String avatar) {
this.avatar = avatar;
}
public String getNickname() {
return this.nickname;
}
public void setNickname(String nickname) {
this.nickname = nickname;
}
public int getUser_type() {
return this.user_type;
}
public void setUser_type(int user_type) {
this.user_type = user_type;
}
public String getUser_type_str() {
return this.user_type_str;
}
public void setUser_type_str(String user_type_str) {
this.user_type_str = user_type_str;
}
public String getExpire_time_str() {
return this.expire_time_str;
}
public void setExpire_time_str(String expire_time_str) {
this.expire_time_str = expire_time_str;
}
}
再次回顾我们的InitData方法，参考initBean.getUserInfo) ≠ null以下，我删除无用的放到下面给大家看看，
this.vip.postValue(Boolean.valueOf(initBean.getUserInfo().getUser_type() == 1));
SPUtils.getInstance().put("VIP", initBean.getUserInfo().getUser_type() == 1);
this.isVip.set(initBean.getUserInfo().getUser_type() == 1);
this.user_type_str.set(initBean.getUserInfo().getUser_type_str());
this.expire_time_str.set(initBean.getUserInfo().getExpire_time_str());
所以我们只需要修改getUser_type、getUser_type_str、getExpire_time_str这三个方法。
修改如下：
.method public getExpire_time_str()Ljava/lang/String;
.registers 2
.line 81
iget-object v0, p0, Lnet/pengtu/sxscq/bean/UserInfo;->expire_time_str:Ljava/lang/String;
const-string v0,"2099-12-32"
return-object v0
.end method
.method public getUser_type()I
.registers 2
.line 65
iget v0, p0, Lnet/pengtu/sxscq/bean/UserInfo;->user_type:I
const/4 v0,0x1
return v0
.end method
.method public getUser_type_str()Ljava/lang/String;
.registers 2
.line 73
iget-object v0, p0, Lnet/pengtu/sxscq/bean/UserInfo;->user_type_str:Ljava/lang/String;
const-string v0,"VIP"
return-object v0
.end method
效果图
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使用体验
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