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hyperledger-fabric - 允许参与者完全读取权限

问题描述

我想授予在公司工作的所有“人员”参与者的读取权限，其中公司的类型是“边界”。公司类型是一个枚举。

访问控制列表：

rule NetworkAdminUser {
    description: "Grant business network administrators full access to user resources"
    participant: "org.hyperledger.composer.system.NetworkAdmin"
    operation: ALL
    resource: "**"
    action: ALLOW
}

rule NetworkAdminSystem {
    description: "Grant business network administrators full access to system resources"
    participant: "org.hyperledger.composer.system.NetworkAdmin"
    operation: ALL
    resource: "org.hyperledger.composer.system.**"
    action: ALLOW
}

rule SystemACL {
  description:  "System ACL to permit all access"
  participant: "org.hyperledger.composer.system.Participant"
  operation: ALL
  resource: "org.hyperledger.composer.system.**"
  action: ALLOW
}

rule transaction {
    description: "Allow participants full access to transactions"
    participant: "org.acme.shipping.participants.Person"
    operation: ALL
    resource: "org.acme.shipping.transactions.**"
    action: ALLOW
}

rule containers {
    description: "Allow participants access to containers owned by their company"
    participant(p): "org.acme.shipping.participants.Person"
    operation: ALL
    resource(c): "org.acme.shipping.assets.**"
    condition: (c.owner.getIdentifier() == p.company.getIdentifier())
    action: ALLOW
}

rule border {
    description: "Allow Border access to containers"
    participant(p): "org.acme.shipping.participants.Person"
    operation: READ
    resource: "org.acme.shipping.assets.**"
    condition: (p.company.type == "BORDER")
    action: ALLOW
}

参与者模型文件：

namespace org.acme.shipping.participants

participant Company identified by cid {
  o String cid
  o String name
  o CompanyType type
}

enum CompanyType {
  o BORDER
  o COURIER
  o SHIPPER
}

participant Person identified by id {
  o String id
  o String name
  --> Company company
}

但是，Person 仍然看不到任何资产。

有什么建议可以解决吗？

标签： hyperledger-fabrichyperledgerhyperledger-composeribm-blockchain

解决方案

您为授予边境公司所有容器的访问权限而编写的 ACL 规则没有问题。主要问题是每个Person参与者都有对其公司的引用，但没有为Person类型的参与者指定在 ACL 中访问/读取其公司详细信息的规则。因此，默认情况下，ACL 拒绝人员读取其公司详细信息的 READ 访问权限，并且当您在规则条件下访问人员的公司时

p.company.type

访问只是受到限制。要实现相同的功能，您必须首先提供对 Person 自己的公司的 READ 访问权限，使用

rule readCompany {
    description: "Allow Read Access to Person's Own Company"
    participant(p): "org.acme.shipping.participants.Person"
    operation: READ
    resource(comp): "org.acme.shipping.participants.Company"
    condition: (p.company.getIdentifier() == comp.getIdentifier())
    action: ALLOW
}

然后，您将能够使用与您相同的规则将所有容器的访问权限授予属于Border类型公司的人员

rule border {
    description: "Allow Border access to containers"
    participant(p): "org.acme.shipping.participants.Person"
    operation: READ
    resource: "org.acme.shipping.assets.**"
    condition: (p.company.type == "BORDER")
    action: ALLOW
}

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