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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,7 +1,6 @@ | ||
| package run | ||
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| import ( | ||
| "encoding/json" | ||
| "fmt" | ||
| "math/big" | ||
| "os" | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,125 @@ | ||
| package requester | ||
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| import ( | ||
| "context" | ||
| "fmt" | ||
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| "github.com/onflow/flow-evm-gateway/config" | ||
| "github.com/onflow/flow-go-sdk/access" | ||
| "github.com/onflow/flow-go-sdk/crypto" | ||
| "github.com/onflow/flow-go/module/component" | ||
| "github.com/onflow/flow-go/module/irrecoverable" | ||
| "github.com/rs/zerolog" | ||
| ) | ||
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| type KeyStoreComponent struct { | ||
| *KeyStore | ||
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| log zerolog.Logger | ||
| config config.Config | ||
| client access.Client | ||
| startupCompleted chan struct{} | ||
| } | ||
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| var _ component.Component = (*KeyStoreComponent)(nil) | ||
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| func NewKeyStoreComponent(log zerolog.Logger, config config.Config, client access.Client) *KeyStoreComponent { | ||
| ks := &KeyStoreComponent{ | ||
| log: log, | ||
| config: config, | ||
| client: client, | ||
| startupCompleted: make(chan struct{}), | ||
| } | ||
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| return ks | ||
| } | ||
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| func (k *KeyStoreComponent) Start(ctx irrecoverable.SignalerContext) { | ||
| defer close(k.startupCompleted) | ||
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| k.log.Info().Msg("starting key store component") | ||
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| accountKeys := make([]*AccountKey, 0) | ||
| account, err := k.client.GetAccount(ctx, k.config.COAAddress) | ||
| if err != nil { | ||
| ctx.Throw(fmt.Errorf( | ||
| "failed to get signer info account for address: %s, with: %w", | ||
| k.config.COAAddress, | ||
| err, | ||
| )) | ||
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| return | ||
| } | ||
| signer, err := createSigner(ctx, k.config, k.log) | ||
|
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| if err != nil { | ||
| ctx.Throw(err) | ||
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| return | ||
| } | ||
| for _, key := range account.Keys { | ||
| accountKeys = append(accountKeys, &AccountKey{ | ||
| AccountKey: *key, | ||
| Address: k.config.COAAddress, | ||
| Signer: signer, | ||
| }) | ||
| } | ||
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| k.KeyStore = NewKeyStore(accountKeys) | ||
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| } | ||
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| func (k *KeyStoreComponent) Ready() <-chan struct{} { | ||
| ready := make(chan struct{}) | ||
|
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| go func() { | ||
| <-k.startupCompleted | ||
| close(ready) | ||
| }() | ||
|
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| return ready | ||
| } | ||
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| func (k *KeyStoreComponent) Done() <-chan struct{} { | ||
| done := make(chan struct{}) | ||
|
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| go func() { | ||
| <-k.startupCompleted | ||
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| // This is where we would close the KMS client connection, | ||
| // but it currently does not have a close method | ||
|
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| close(done) | ||
| }() | ||
|
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| return done | ||
| } | ||
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| // createSigner creates the signer based on either a single coa key being | ||
| // provided and using a simple in-memory signer, or a Cloud KMS key being | ||
| // provided and using a Cloud KMS signer. | ||
| func createSigner( | ||
| ctx context.Context, | ||
| config config.Config, | ||
| logger zerolog.Logger, | ||
| ) (crypto.Signer, error) { | ||
| var signer crypto.Signer | ||
| var err error | ||
| switch { | ||
| case config.COAKey != nil: | ||
| signer, err = crypto.NewInMemorySigner(config.COAKey, crypto.SHA3_256) | ||
| case config.COACloudKMSKey != nil: | ||
| signer, err = NewKMSKeySigner( | ||
| ctx, | ||
| *config.COACloudKMSKey, | ||
| logger, | ||
| ) | ||
| default: | ||
| return nil, fmt.Errorf("must provide either single COA / Cloud KMS key") | ||
| } | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to create a COA signer: %w", err) | ||
| } | ||
|
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| return signer, nil | ||
| } |
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