任何想要手动运行“asset_management_with_roles”的人的步骤列表:
Checkout Fabric,从“devenv”文件夹运行 vagrant
ssh 到启动的容器。
重置 Fabric 的配置:
rm /var/hyperledger/production
在 membersrvc.yaml 中启用属性证书颁发机构
aca.enabled: true
在 core.yaml 中启用安全性
security.enable: true
在 core.yaml 中将“node”的日志级别切换为“debug”(可选。如果您知道证书,则不需要)
logging.node: debug
在后台运行 membersrvc:
nohup membersrvc &> /tmp/membersrvc.log &
运行对等服务
peer node start
验证用户“assigner, bob, alice”是否在 membersrvc.yaml 中,根据本示例中的注释,我们将使用:
// This example implements asset transfer using attributes support and specifically Attribute Based Access Control (ABAC).
// There are three users in this example:
// - alice
// - bob
// - assigner
//
// This users are defined in the section “eca" of asset.yaml file.
// In the section “aca" of asset.yaml file two attributes are defined to this users:
// The first attribute is called ‘role' with this values:
// - alice has role = client
// - bob has role = client
// - assigner has role = assigner
//
// The second attribute is called ‘account' with this values:
// - alice has account = 12345-56789
// - bob has account = 23456-67890
使用 vagrant 打开另一个 ssh 终端并登录网络:
peer network login assigner -p Tc43PeqBl11
peer network login bob -p NOE63pEQbL25
peer network login alice -p CMS10pEQlB16
8. 使用“分配者”安全上下文将链代码部署到网络:
curl -XPOST -d ‘{“jsonrpc": "2.0", "method": "deploy", "params": {"type": 1,"chaincodeID": {"path": "github.com/hyperledger/fabric/examples/chaincode/go/asset_management_with_roles","language": "GOLANG"}, "ctorMsg": { "args": ["init"] }, "metadata":[97, 115, 115, 105, 103, 110, 101, 114] ,"secureContext": "assigner"} ,"id": 0}' http://localhost:7050/chaincode
元数据包含 utf-8 编码字符串“assigner”。该字符串将保存在分类帐中,只有具有该角色的用户才能在智能合约中执行“分配”功能。
为了保持示例的可读性,让我们将链码 id 保存在局部变量中:
export HASH=7adc030881c07c39d2edac0b1560bf7cf2b7f0a4bce74fe7e6144e3f36e1bf2d176093d4c23ba58712a9589d9600e6d9ef596a1521a4c5227c222d8af2bf16c8
从这一刻开始,用户“assigner”可以为 bob 和 alice 创建新资产,我们只需要找到他们的证书。
让我们对“bob”securityContext 下的任何随机资产名称运行查询命令:
curl -XPOST -d '{"jsonrpc": "2.0", "method": "query", "params": {"type": 1, "chaincodeID": {"name": "'"$HASH"'"}, "ctorMsg": {"args": ["query", "myasset"]}, "secureContext": "bob", "attributes": ["role", "account"]}, "id": 1}' http://localhost:7050/chaincode
(重要提示:“attributes”: [“role”, “account”]
没有属性将被加载到交易证书中)
只要“peer”在调试模式下启动,bob 的证书就会打印在 peer 日志输出中。尝试找到“[client.bob] 添加新证书”行并复制证书值:
30 82 02 90 30 82 02 37 a0 03 02 01 02 02 10 2f 9e 4e da c9 e9 4e 97 b1 58 24 78 4e 15 05 f4 30 0a 06 08 2a 86 48 ce 3d 04 03 03 30 31 31 0b 30 09 06 03 55 04 06 13 02 55 53 31 14 30 12 06 03 55 04 0a 13 0b 48 79 70 65 72 6c 65 64 67 65 72 31 0c 30 0a 06 03 55 04 03 13 03 74 63 61 30 1e 17 0d 31 36 30 39 31 39 32 31 32 34 31 39 5a 17 0d 31 36 31 32 31 38 32 31 32 34 31 39 5a 30 45 31 0b 30 09 06 03 55 04 06 13 02 55 53 31 14 30 12 06 03 55 04 0a 13 0b 48 79 70 65 72 6c 65 64 67 65 72 31 20 30 1e 06 03 55 04 03 13 17 54 72 61 6e 73 61 63 74 69 6f 6e 20 43 65 72 74 69 66 69 63 61 74 65 30 59 30 13 06 07 2a 86 48 ce 3d 02 01 06 08 2a 86 48 ce 3d 03 01 07 03 42 00 04 78 8f f2 11 55 a3 5a 8d f1 b5 4f 38 e4 94 e4 67 b0 47 7f e0 07 04 b8 fb 12 ee 86 17 8a 05 55 e3 98 f6 c1 af 59 ee 2d 54 a9 c5 36 22 cd fa a8 1b ce ba e0 26 fd 73 40 af 20 5d 15 65 89 9c 62 64 a3 82 01 1b 30 82 01 17 30 0e 06 03 55 1d 0f 01 01 ff 04 04 03 02 07 80 30 0c 06 03 55 1d 13 01 01 ff 04 02 30 00 30 0d 06 03 55 1d 0e 04 06 04 04 01 02 03 04 30 0f 06 03 55 1d 23 04 08 30 06 80 04 01 02 03 04 30 10 06 06 2a 03 04 05 06 0a 04 06 63 6c 69 65 6e 74 30 15 06 06 2a 03 04 05 06 0b 04 0b 32 33 34 35 36 2d 36 37 38 39 30 30 4d 06 06 2a 03 04 05 06 07 01 01 ff 04 40 fc c2 07 dd ee ac 8c 76 84 12 07 d2 e0 a6 da b3 06 c9 5b 5b 41 57 a3 f3 a2 f7 59 e2 ed 02 02 7e 56 46 f5 bc 24 00 0a 2e 18 b4 a6 b7 a6 c3 8d ca 15 13 a7 98 42 98 8f 9b 85 a2 d1 6a 77 0d da e8 30 3a 06 06 2a 03 04 05 06 08 04 30 ff d2 ab 7f c8 2d 98 c4 3f c9 f7 05 12 07 01 3a 36 69 f8 ee d1 c4 27 16 48 3e ee ed db b9 b6 3c d6 e5 1a 3e 0b 7d f0 19 1c 81 03 12 f6 7b d5 3e 30 23 06 06 2a 03 04 05 06 09 04 19 30 30 48 45 41 44 72 6f 6c 65 2d 3e 31 23 61 63 63 6f 75 6e 74 2d 3e 32 23 30 0a 06 08 2a 86 48 ce 3d 04 03 03 03 47 00 30 44 02 20 49 52 26 bd b8 f4 a0 98 c6 ff fc 56 3e b5 b0 12 ee ec b7 46 90 55 b1 17 99 29 fe df 80 2e 95 b9 02 20 3b 7f dd 32 88 56 ae a1 14 60 54 60 95 61 fb d1 bc 0c f7 e0 61 f2 e9 0b 46 35 6a 36 61 c9 b8 f0
证书应采用 base64 编码。作为一个选项,我们可以使用http://tomeko.net/online_tools/hex_to_base64.php?lang=en
将证书插入“十六进制字符串”字段,单击“转换”按钮,结果将在“输出(base64)”中:
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
“assign”方法需要 2 个参数,即资产名称和所有者证书。可以使用以下方法创建新资产:
curl -XPOST -d '{"jsonrpc": "2.0", "method": "invoke", "params": {"type": 1, "chaincodeID": {"name": "'"$HASH"'"}, "ctorMsg": {"args": ["assign", "myasset", "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"]}, "metadata":[97, 115, 115, 105, 103, 110, 101, 114], "secureContext": "assigner", "attributes": ["role", "account"]}, "id": 1}' http://localhost:7050/chaincode
再次尝试从第 9 步运行查询以获取 bob:
curl -XPOST -d ‘{"jsonrpc": "2.0", "method": "query", "params": {"type": 1, "chaincodeID": {"name": "'"$HASH"'"}, "ctorMsg": {"args": ["query", "myasset"]}, "secureContext": "bob", "attributes": ["role", "account"]}, "id": 1}' http://localhost:7050/chaincode
你会看到“myasset”已经创建,属于账户“23456-67890”</p>
使用相同的方法,我们可以找到 alice 的证书并更改“myasset”的所有者。