Hyperledger作曲者对参与者数组的许可 [英] Hyperledger composer Permission for array of Participants

问题描述

我正在Hyperledger作曲器中创建资产，如下所示.我想在Bank []数组中添加参与者(这些银行将仅具有只读访问权限).在Permission.acl文件中，如何为该资产(只读)存在参与者的条件写出检查条件(银行[]).

I am creating an asset in Hyperledger composer as shown below. I want to add participants in Bank[] array (these banks will only have read only access). In Permission.acl file how can I write condition for checking into the array(Bank[]) if the participant exist for this asset(Read only).

资产定义:

asset Details identified by detailsId {
    o String detailsId
    o String description optional
    --> Bank owner
    --> Bank[] access optional
    o String document 
}

推荐答案

如下所示-a)如果不为空，b)如果银行的参与者被授权(通过检查数组)，则允许读取访问(如果我没看错的话).

something like below - a) if its not empty and b) if the participant from the bank is authorised (by checking the array) - if so, allow READ access (if I read you correctly).

rule checkParticipant {
    description: "check Participant is from allowed Bank"
    participant(p): "org.acme.account.BankTeller"
    operation: READ
    resource(v): "org.acme.account.Details"
    condition: ( v.access && v.access.indexOf(p.getIdentifier()) > -1 )
    action: ALLOW
}

或条件(如以下问题):

or a condition (something like below) if case is an issue:

condition: ( v.access && v.access.toLowerCase().indexOf(p.getIdentifier().toLowerCase()) > -1 )

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