commit edfed1bcf28996540463ea8aa9158f3e641c7904 Author: Nex Zhu Date: Tue Nov 26 18:54:32 2024 +0800 feat(sdk-go): initial version diff --git a/sdk-go/client/client.go b/sdk-go/client/client.go new file mode 100644 index 0000000..cbe9acb --- /dev/null +++ b/sdk-go/client/client.go @@ -0,0 +1,192 @@ +package client + +import ( + "bytes" + "crypto/rand" + "encoding/hex" + "encoding/json" + "fmt" + "io" + "log" + "net/http" + "net/url" + "strings" + "time" + + "github.com/tjfoc/gmsm/sm2" + + "go.fusiongalaxy.cn/bdware/bdcontract-client/sm2util" +) + +type HttpCOptions struct { + MaxRetries int +} + +type Client struct { + baseUrl string + priv *sm2.PrivateKey + pub *sm2.PublicKey + pubHex string + httpc *http.Client + maxRetry int +} + +func NewClient( + baseUrl string, + priv *sm2.PrivateKey, + pub *sm2.PublicKey, + opt HttpCOptions, +) (*Client, error) { + pubHex, err := sm2util.CheckSm2KeyPair(priv, pub) + if err != nil { + return nil, err + } + + if opt.MaxRetries == 0 { + opt.MaxRetries = 3 + } + + return &Client{ + baseUrl: baseUrl, + pub: pub, + pubHex: pubHex, + priv: priv, + httpc: &http.Client{Timeout: 10 * time.Second}, + maxRetry: opt.MaxRetries, + }, nil +} + +func (c *Client) RequestWithSignature( + path string, + method string, + body map[string]interface{}, + priv *sm2.PrivateKey, + pub *sm2.PublicKey, +) (statusCode int, respBody io.ReadCloser, err error) { + var pubHex string + if priv != nil { + var err error + pubHex, err = sm2util.CheckSm2KeyPair(priv, pub) + if err != nil { + return 0, nil, err + } + } else { + priv = c.priv + pubHex = c.pubHex + } + + rawUrl := c.baseUrl + path + u := fmt.Sprintf("%s%spubKey=%s", + rawUrl, + func() string { + if strings.Contains(path, "?") { + return "&" + } + return "?" + }(), + pubHex, + ) + + switch strings.ToUpper(method) { + case "POST": + body["sign"] = c.Sign(u[strings.Index(u, "?")+1:], priv) + + bodyJson, err := json.Marshal(body) + if err != nil { + return 0, nil, err + } + + resp, err := c.httpc.Post(rawUrl, "application/json", bytes.NewBuffer(bodyJson)) + if err != nil { + return 0, nil, err + } + respBody = resp.Body + } + + return statusCode, respBody, nil +} + +func (c *Client) Sign(data string, priv *sm2.PrivateKey) string { + if priv == nil { + priv = c.priv + } + sig, err := priv.Sign(rand.Reader, []byte(data), nil) + if err != nil { + log.Fatal(err) + } + return hex.EncodeToString(sig) +} + +func genUrlParamsFromObject(obj map[string]interface{}) string { + params := make([]string, 0) + for key, value := range obj { + params = append(params, fmt.Sprintf("%s=%v", key, value)) + } + return strings.Join(params, "&") +} + +func retry[T any](fn func() (int, T, error)) (int, T, error) { + var lastErr error + for attempt := 0; attempt < 3; attempt++ { + resp, statusCode, err := fn() + if err == nil { + return resp, statusCode, nil + } + lastErr = err + time.Sleep(100 * time.Millisecond * time.Duration(attempt+1)) + } + var zero T + return 0, zero, lastErr +} + +func (c *Client) Ping() (statusCode int, resp *PingResponse, err error) { + return retry(func() (statusCode int, resp *PingResponse, err error) { + statusCode, respBody, err := c.RequestWithSignature( + "/SCManager?action=ping", + "GET", + nil, + nil, + nil, + ) + if err != nil { + return 0, nil, err + } + + defer respBody.Close() + decoder := json.NewDecoder(respBody) + if err := decoder.Decode(&resp); err != nil { + return 0, nil, err + } + + return statusCode, resp, nil + }) +} + +func (c *Client) StartContract(code string) (statusCode int, resp string, err error) { + params := url.Values{ + "action": {"startContract"}, + "script": {code}, + } + path := fmt.Sprintf("/SCManager?%s", params.Encode()) + return retry(func() (int, string, error) { + statusCode, respBody, err := c.RequestWithSignature( + path, + "GET", + nil, + nil, + nil, + ) + if err != nil { + return 0, "", err + } + + var resp string + defer respBody.Close() + buf := new(strings.Builder) + if _, err := io.Copy(buf, respBody); err != nil { + return 0, "", err + } + + return statusCode, resp, nil + }) +} diff --git a/sdk-go/client/dto.go b/sdk-go/client/dto.go new file mode 100644 index 0000000..ac2cbb8 --- /dev/null +++ b/sdk-go/client/dto.go @@ -0,0 +1,119 @@ +package client + +// ClientResponse represents a generic response structure +type ClientResponse[T any] struct { + Data *T `json:"data,omitempty"` +} + +// PingResponse is a specific response type for ping operations +type PingResponse struct { + ClientResponse[string] // will contain "pong" +} + +// SaveFileRequest represents the request structure for saving files +type SaveFileRequest struct { + Content string `json:"content"` + IsAppend bool `json:"isAppend"` + IsPrivate bool `json:"isPrivate"` + Path string `json:"path"` +} + +// ListProjectPermissionRequest represents the request for listing project permissions +type ListProjectPermissionRequest struct { + IsPrivate bool `json:"isPrivate"` + Path string `json:"path"` +} + +// ListProjectPermissionResponseData contains permission response data +type ListProjectPermissionResponseData struct { + Permissions []string `json:"permissions"` + YPK string `json:"ypk"` +} + +// StartContractByYpkRequest represents the request for starting a contract +type StartContractByYpkRequest struct { + IsPrivate bool `json:"isPrivate"` + Path string `json:"path"` + Script string `json:"script"` +} + +// ListAllUsersResponseDataListItem represents a key-value pair +type ListAllUsersResponseDataListItem struct { + Key string `json:"key"` + Value string `json:"value"` +} + +// ListAllUsersResponseData contains user listing response data +type ListAllUsersResponseData struct { + KV []ListAllUsersResponseDataListItem `json:"kv"` + Time []ListAllUsersResponseDataListItem `json:"time"` +} + +// OnlineContractsItem represents an online contract +type OnlineContractsItem struct { + ContractID string `json:"contractID"` + ContractName string `json:"contractName"` + IsMaster bool `json:"isMaster"` + Type string `json:"type"` + YjsType string `json:"yjsType"` + Extra map[string]interface{} `json:"-"` +} + +// OnlineItem represents an online node +type OnlineItem struct { + CIManager string `json:"cimanager"` + ContractVersion int `json:"contractVersion"` + Events int `json:"events"` + IPPort string `json:"ipPort"` + MasterAddress string `json:"masterAddress"` + NodeName string `json:"nodeName"` + PeerID string `json:"peerID"` + PubKey string `json:"pubKey"` + Contracts []OnlineContractsItem `json:"contracts"` +} + +// ListNodesResponse represents the response for listing nodes +type ListNodesResponse struct { + Action string `json:"action"` + Offline []string `json:"offline"` + Online []OnlineItem `json:"online"` +} + +// DistributeContractResponse represents the response for contract distribution +type DistributeContractResponse struct { + Action string `json:"action"` + Progress string `json:"progress"` +} + +// ExecuteContractArgs represents arguments for contract execution +type ExecuteContractArgs struct { + Method string `json:"method,omitempty"` + WithSignature bool `json:"withSignature,omitempty"` + WithDynamicAnalysis bool `json:"withDynamicAnalysis,omitempty"` +} + +// ExecuteContractResponse represents the response from contract execution +type ExecuteContractResponse[T any] struct { + Status *bool `json:"status,omitempty"` + Data *T `json:"data,omitempty"` + ExecuteTime *float64 `json:"executeTime,omitempty"` + CID *string `json:"cid,omitempty"` + IsPrivate *bool `json:"isPrivate,omitempty"` + AdditionalData map[string]interface{} `json:"-"` +} + +// ConfigNodeArgs represents configuration arguments for a node +type ConfigNodeArgs struct { + NodeName string `json:"nodeName,omitempty"` + DataChain string `json:"dataChain,omitempty"` + MasterAddress string `json:"masterAddress,omitempty"` + NodeCenter string `json:"nodeCenter,omitempty"` + LHSProxyAddress string `json:"LHSProxyAddress,omitempty"` + ExtraConfig map[string]string `json:"-"` +} + +// LoadNodeConfigResponseData represents the response data for node configuration +type LoadNodeConfigResponseData struct { + DoipConfig string `json:"doipConfig"` + ExtraData map[string]string `json:"-"` +} diff --git a/sdk-go/go.mod b/sdk-go/go.mod new file mode 100644 index 0000000..b3dd286 --- /dev/null +++ b/sdk-go/go.mod @@ -0,0 +1,5 @@ +module go.fusiongalaxy.cn/bdware/bdcontract-client + +go 1.23 + +require github.com/tjfoc/gmsm v1.4.1 // indirect diff --git a/sdk-go/go.sum b/sdk-go/go.sum new file mode 100644 index 0000000..b379cd2 --- /dev/null +++ b/sdk-go/go.sum @@ -0,0 +1,71 @@ +cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= +github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU= +github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw= 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h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= diff --git a/sdk-go/main.go b/sdk-go/main.go new file mode 100644 index 0000000..e69de29 diff --git a/sdk-go/sm2util/util.go b/sdk-go/sm2util/util.go new file mode 100644 index 0000000..1494a06 --- /dev/null +++ b/sdk-go/sm2util/util.go @@ -0,0 +1,123 @@ +package sm2util + +import ( + "encoding/hex" + "errors" + "math/big" + + "github.com/tjfoc/gmsm/sm2" +) + +var ( + ErrPrivateKeyIsNil = errors.New("private key is nil") + ErrPublicAndKeysNotMatch = errors.New("public and private keys don't match") +) + +func CheckSm2KeyPair(priv *sm2.PrivateKey, pub *sm2.PublicKey) (pubHex string, err error) { + if priv == nil { + return "", ErrPrivateKeyIsNil + } + + if pub == nil { + pub = &priv.PublicKey + return PublicKeyToHex(pub), nil + } + + pubHex = PublicKeyToHex(pub) + if pubHex != PublicKeyToHex(&priv.PublicKey) { + return "", ErrPublicAndKeysNotMatch + } + + return +} + +/* From: https://github.com/tjfoc/gmsm/issues/207 */ + +// 国密sm2 非对称加密算法 （对标rsa使用场景） +// +// ParsePublicKey 公钥字符串还原为 sm2.PublicKey 对象(与java中org.bouncycastle.crypto生成的公私钥完全互通使用) +func ParsePublicKey(publicKeyStr string) (*sm2.PublicKey, error) { + publicKeyBytes, err := hex.DecodeString(publicKeyStr) + if err != nil { + return nil, err + } + // 提取 x 和 y 坐标字节切片 + curve := sm2.P256Sm2().Params() + byteLen := (curve.BitSize + 7) / 8 + xBytes := publicKeyBytes[1 : byteLen+1] + yBytes := publicKeyBytes[byteLen+1 : 2*byteLen+1] + // 将字节切片转换为大整数 + x := new(big.Int).SetBytes(xBytes) + y := new(big.Int).SetBytes(yBytes) + // 创建 sm2.PublicKey 对象 + publicKey := &sm2.PublicKey{ + Curve: curve, + X: x, + Y: y, + } + return publicKey, nil +} + +// 国密 非对称加密算法 +// +// ParsePublicKey 公钥字符串还原为 sm2.PublicKey 对象(与java中org.bouncycastle.crypto生成的公私钥完全互通使用) +func ParsePublicKeyByXY(xHex, yHex string) (*sm2.PublicKey, error) { + xBytes, err := hex.DecodeString(xHex) + if err != nil { + return nil, err + } + yBytes, err := hex.DecodeString(yHex) + if err != nil { + return nil, err + } + // 提取 x 和 y 坐标字节切片 + curve := sm2.P256Sm2().Params() + // byteLen := (curve.BitSize + 7) / 8 + // 将字节切片转换为大整数 + x := new(big.Int).SetBytes(xBytes) + y := new(big.Int).SetBytes(yBytes) + // 创建 sm2.PublicKey 对象 + publicKey := &sm2.PublicKey{ + Curve: curve, + X: x, + Y: y, + } + return publicKey, nil +} + +func PublicKeyToHex(pk *sm2.PublicKey) (pubKeyString string) { + bs := append([]byte{byte(4)}, pk.X.Bytes()...) + bs = append(bs, pk.Y.Bytes()...) + + return hex.EncodeToString(bs) +} + +func PublicKeyToXYHex(pk *sm2.PublicKey) (x, y string) { + x = hex.EncodeToString(pk.X.Bytes()) + y = hex.EncodeToString(pk.Y.Bytes()) + return x, y +} + +// 将私钥字符串反序列化转为私钥对象: +// ParsePrivateKey 私钥还原为 sm2.PrivateKey对象(与java中org.bouncycastle.crypto生成的公私钥完全互通使用) +func ParsePrivateKey(privateKeyStr string, publicKey *sm2.PublicKey) (*sm2.PrivateKey, error) { + privateKeyBytes, err := hex.DecodeString(privateKeyStr) + if err != nil { + return nil, err + } + // 将字节切片转换为大整数 + d := new(big.Int).SetBytes(privateKeyBytes) + // 创建 sm2.PrivateKey 对象 + privateKey := &sm2.PrivateKey{ + PublicKey: *publicKey, + D: d, + } + return privateKey, nil +} + +func PrivateKeyToHex(pk *sm2.PrivateKey) (d string) { + d = hex.EncodeToString(pk.D.Bytes()) + return d +} + +/**/