85 lines
2.5 KiB
Go
85 lines
2.5 KiB
Go
package rpc
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import (
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"context"
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"fmt"
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wallettypes "decred.org/dcrwallet/rpc/jsonrpc/types"
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"github.com/decred/dcrd/chaincfg/v3"
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dcrdtypes "github.com/decred/dcrd/rpc/jsonrpc/types/v2"
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"github.com/decred/dcrd/wire"
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)
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const (
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requiredWalletVersion = "8.1.0"
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)
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// WalletRPC provides methods for calling dcrwallet JSON-RPCs without exposing the details
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// of JSON encoding.
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type WalletRPC struct {
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Caller
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ctx context.Context
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}
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// WalletClient creates a new WalletRPC client instance from a caller.
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func WalletClient(ctx context.Context, c Caller, netParams *chaincfg.Params) (*WalletRPC, error) {
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// Verify dcrwallet is at the required api version.
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var verMap map[string]dcrdtypes.VersionResult
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err := c.Call(ctx, "version", &verMap)
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if err != nil {
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return nil, fmt.Errorf("version check failed: %v", err)
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}
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walletVersion, exists := verMap["dcrwalletjsonrpcapi"]
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if !exists {
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return nil, fmt.Errorf("version response missing 'dcrwalletjsonrpcapi'")
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}
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if walletVersion.VersionString != requiredWalletVersion {
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return nil, fmt.Errorf("wrong dcrwallet RPC version: got %s, expected %s",
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walletVersion.VersionString, requiredWalletVersion)
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}
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// Verify dcrwallet is voting, unlocked, and is connected to dcrd (not SPV).
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var walletInfo wallettypes.WalletInfoResult
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err = c.Call(ctx, "walletinfo", &walletInfo)
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if err != nil {
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return nil, fmt.Errorf("walletinfo check failed: %v", err)
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}
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if !walletInfo.Voting {
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return nil, fmt.Errorf("wallet has voting disabled")
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}
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if !walletInfo.Unlocked {
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return nil, fmt.Errorf("wallet is not unlocked")
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}
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if !walletInfo.DaemonConnected {
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return nil, fmt.Errorf("wallet is not connected to dcrd")
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}
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// Verify dcrwallet is on the correct network.
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var netID wire.CurrencyNet
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err = c.Call(ctx, "getcurrentnet", &netID)
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if err != nil {
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return nil, fmt.Errorf("getcurrentnet check failed: %v", err)
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}
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if netID != netParams.Net {
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return nil, fmt.Errorf("dcrwallet running on %s, expected %s", netID, netParams.Net)
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}
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return &WalletRPC{c, ctx}, nil
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}
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func (c *WalletRPC) AddTransaction(blockHash, txHex string) error {
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return c.Call(c.ctx, "addtransaction", nil, blockHash, txHex)
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}
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func (c *WalletRPC) ImportPrivKey(votingWIF string) error {
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label := "imported"
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rescan := false
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scanFrom := 0
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return c.Call(c.ctx, "importprivkey", nil, votingWIF, label, rescan, scanFrom)
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}
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func (c *WalletRPC) SetVoteChoice(agenda, choice, ticketHash string) error {
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return c.Call(c.ctx, "setvotechoice", nil, agenda, choice, ticketHash)
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}
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