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Add TLS support for Electrum. In default, the scheme is a tls connection, which allows connection to electrs. context timeout for wallet operations to enhance reliability.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| package electrum | ||
|
|
||
| import ( | ||
| "context" | ||
| "crypto/tls" | ||
|
|
||
| "github.com/checksum0/go-electrum/electrum" | ||
| "github.com/elementsproject/peerswap/log" | ||
| ) | ||
|
|
||
| type electrumClient struct { | ||
| client *electrum.Client | ||
| endpoint string | ||
| isTLS bool | ||
| } | ||
|
|
||
| func NewElectrumClient(ctx context.Context, endpoint string, isTLS bool) (RPC, error) { | ||
| ec, err := newClient(ctx, endpoint, isTLS) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| client := &electrumClient{ | ||
| client: ec, | ||
| endpoint: endpoint, | ||
| isTLS: isTLS, | ||
| } | ||
| return client, nil | ||
| } | ||
|
|
||
| // reconnect reconnects to the electrum server if the connection is lost. | ||
| func (c *electrumClient) reconnect(ctx context.Context) error { | ||
| if err := c.client.Ping(ctx); err != nil { | ||
| log.Infof("failed to ping electrum server: %v", err) | ||
| log.Infof("reconnecting to electrum server") | ||
| client, err := newClient(ctx, c.endpoint, c.isTLS) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| c.client = client | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func newClient(ctx context.Context, endpoint string, isTLS bool) (*electrum.Client, error) { | ||
| if isTLS { | ||
| return electrum.NewClientSSL(ctx, endpoint, &tls.Config{ | ||
| MinVersion: tls.VersionTLS12, | ||
| }) | ||
| } | ||
| return electrum.NewClientTCP(ctx, endpoint) | ||
| } | ||
|
|
||
| func (c *electrumClient) SubscribeHeaders(ctx context.Context) (<-chan *electrum.SubscribeHeadersResult, error) { | ||
| if err := c.reconnect(ctx); err != nil { | ||
| return nil, err | ||
| } | ||
| return c.client.SubscribeHeaders(ctx) | ||
| } | ||
|
|
||
| func (c *electrumClient) GetHistory(ctx context.Context, scripthash string) ([]*electrum.GetMempoolResult, error) { | ||
| if err := c.reconnect(ctx); err != nil { | ||
| return nil, err | ||
| } | ||
| return c.client.GetHistory(ctx, scripthash) | ||
| } | ||
|
|
||
| func (c *electrumClient) GetRawTransaction(ctx context.Context, txHash string) (string, error) { | ||
| if err := c.reconnect(ctx); err != nil { | ||
| return "", err | ||
| } | ||
| return c.client.GetRawTransaction(ctx, txHash) | ||
| } | ||
|
|
||
| func (c *electrumClient) BroadcastTransaction(ctx context.Context, rawTx string) (string, error) { | ||
| if err := c.reconnect(ctx); err != nil { | ||
| return "", err | ||
| } | ||
| return c.client.BroadcastTransaction(ctx, rawTx) | ||
| } | ||
|
|
||
| func (c *electrumClient) GetFee(ctx context.Context, target uint32) (float32, error) { | ||
| if err := c.reconnect(ctx); err != nil { | ||
| return 0, err | ||
| } | ||
| return c.client.GetFee(ctx, target) | ||
| } |
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