Chinese Journal of Network and Information Security ›› 2018, Vol. 4 ›› Issue (7): 22-29.doi: 10.11959/j.issn.2096-109x.2018060
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Li LI,Siqin ZHOU,Qin LIU,Debiao HE
Revised:2018-07-01
Online:2018-07-01
Published:2018-09-10
Supported by:CLC Number:
Li LI,Siqin ZHOU,Qin LIU,Debiao HE. Blockchain-based digital copyright trading system[J]. Chinese Journal of Network and Information Security, 2018, 4(7): 22-29.
| 版权注册主要代码 |
| 前提：链码初始化，安装到链上，用户利用客户端调用函数名， |
| 传入打包好的新Work结构 |
| function onRegisterOfWork(Work) { |
| var newWork=work; |
| return getAssetRegistry('org.whu.dci.management.Work ') |
| .then(function(){ |
| return getAssetRegistry('org.whu.dci.management.Book')}); // |
| 在账本中记录新的work ，更新账本 |
| } |
| 版权注册主要代码 |
| 前提：链码初始化，安装到链上，用户利用客户端调用函数名， |
| 传入打包好的新Work结构 |
| function onRegisterOfWork(Work) { |
| var newWork=work; |
| return getAssetRegistry('org.whu.dci.management.Work ') |
| .then(function(){ |
| return getAssetRegistry('org.whu.dci.management.Book')}); // |
| 在账本中记录新的work ，更新账本 |
| } |
| 版权转让主要代码 |
| 前提：链码初始化，安装到链上，用户利用客户端调用函数名，传入打包好的新Work结构 |
| function onChangeOwnerOfWork(ChangeOwnerOfWork) { |
| var newOwner=ChangeOwnerOfWork.newOwner; //获取版权转让的被转让方 |
| var oldOwner=ChangeOwnerOfWork.book.owner; //获取版权转让的转让方 |
| ChangeOwnerOfWork.book.owner=newOwner; |
| var price=ChangeOwnerOfWork.book.price; //获取转让合约中用户确定的转让价格 |
| newOwner.balance=newOwner.balance-price; //从被转让方的钱包中扣除转让费 |
| oldOwner.balance=oldOwner.balance+price; //在转让方的钱包中增加转让费 |
| UpdateUserRegister(); //更新账本中用户信息和该数字版权信息 |
| UpdateDciRegister(); |
| return 1; |
| } |
| 版权转让主要代码 |
| 前提：链码初始化，安装到链上，用户利用客户端调用函数名，传入打包好的新Work结构 |
| function onChangeOwnerOfWork(ChangeOwnerOfWork) { |
| var newOwner=ChangeOwnerOfWork.newOwner; //获取版权转让的被转让方 |
| var oldOwner=ChangeOwnerOfWork.book.owner; //获取版权转让的转让方 |
| ChangeOwnerOfWork.book.owner=newOwner; |
| var price=ChangeOwnerOfWork.book.price; //获取转让合约中用户确定的转让价格 |
| newOwner.balance=newOwner.balance-price; //从被转让方的钱包中扣除转让费 |
| oldOwner.balance=oldOwner.balance+price; //在转让方的钱包中增加转让费 |
| UpdateUserRegister(); //更新账本中用户信息和该数字版权信息 |
| UpdateDciRegister(); |
| return 1; |
| } |
| 数字内容订阅主要代码 |
| 前提：链码初始化，安装到链上，用户利用客户端调用函数名，传入打包好的新Work结构 |
| function onSubscribeWork(SubscribeWork) { |
| var subscriber=SubscribeWork.subscriber; |
| var author=SubscribeWork.book.owner; |
| var subscribePrice=SubscribeWork.book.subscribePrice; |
| subscriber.bookList.push(SubscribeWork.book); //'书架'上新增一个数字作品 |
| author.balance+=subscribePrice; //author账户钱包数额增加， |
| subscriber.balance-=subscribePrice; //订阅者钱包数额减少 |
| UpdateUserRegister(); //更新账本中用户信息和该数字版权信息 |
| UpdateDciRegister(); |
| return 1; |
| } |
| 数字内容订阅主要代码 |
| 前提：链码初始化，安装到链上，用户利用客户端调用函数名，传入打包好的新Work结构 |
| function onSubscribeWork(SubscribeWork) { |
| var subscriber=SubscribeWork.subscriber; |
| var author=SubscribeWork.book.owner; |
| var subscribePrice=SubscribeWork.book.subscribePrice; |
| subscriber.bookList.push(SubscribeWork.book); //'书架'上新增一个数字作品 |
| author.balance+=subscribePrice; //author账户钱包数额增加， |
| subscriber.balance-=subscribePrice; //订阅者钱包数额减少 |
| UpdateUserRegister(); //更新账本中用户信息和该数字版权信息 |
| UpdateDciRegister(); |
| return 1; |
| } |
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