94 lines
2.4 KiB
Go
94 lines
2.4 KiB
Go
package main
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
"fmt"
|
|
"os"
|
|
"sync"
|
|
|
|
"github.com/jholdstock/dcrvsp/database"
|
|
"github.com/jholdstock/dcrvsp/rpc"
|
|
"github.com/jholdstock/dcrvsp/webapi"
|
|
)
|
|
|
|
func main() {
|
|
// Create a context that is cancelled when a shutdown request is received
|
|
// through an interrupt signal.
|
|
ctx := withShutdownCancel(context.Background())
|
|
go shutdownListener()
|
|
|
|
// Run until error is returned, or shutdown is requested.
|
|
if err := run(ctx); err != nil && !errors.Is(err, context.Canceled) {
|
|
os.Exit(1)
|
|
}
|
|
}
|
|
|
|
// run is the main startup and teardown logic performed by the main package. It
|
|
// is responsible for parsing the config, creating a dcrwallet RPC client,
|
|
// opening the database, starting the webserver, and stopping all started
|
|
// services when the context is cancelled.
|
|
func run(ctx context.Context) error {
|
|
|
|
// Load config file and parse CLI args.
|
|
cfg, err := loadConfig()
|
|
if err != nil {
|
|
// Don't use logger here because it may not be initialised.
|
|
fmt.Fprintf(os.Stderr, "Config error: %v\n", err)
|
|
return err
|
|
}
|
|
|
|
// Waitgroup for services to signal when they have shutdown cleanly.
|
|
var shutdownWg sync.WaitGroup
|
|
defer log.Info("Shutdown complete")
|
|
|
|
// Open database.
|
|
db, err := database.Open(ctx, &shutdownWg, cfg.dbPath)
|
|
if err != nil {
|
|
log.Errorf("Database error: %v", err)
|
|
requestShutdown()
|
|
shutdownWg.Wait()
|
|
return err
|
|
}
|
|
|
|
// Create dcrwallet RPC client.
|
|
walletRPC := rpc.Setup(ctx, &shutdownWg, cfg.WalletUser, cfg.WalletPass, cfg.WalletHost, cfg.dcrwCert)
|
|
_, err = walletRPC()
|
|
if err != nil {
|
|
log.Errorf("dcrwallet RPC error: %v", err)
|
|
requestShutdown()
|
|
shutdownWg.Wait()
|
|
return err
|
|
}
|
|
|
|
signKey, pubKey, err := db.KeyPair()
|
|
if err != nil {
|
|
log.Errorf("Failed to get keypair: %v", err)
|
|
requestShutdown()
|
|
shutdownWg.Wait()
|
|
return err
|
|
}
|
|
// Create and start webapi server.
|
|
apiCfg := webapi.Config{
|
|
SignKey: signKey,
|
|
PubKey: pubKey,
|
|
VSPFee: cfg.VSPFee,
|
|
NetParams: cfg.netParams.Params,
|
|
}
|
|
// TODO: Make releaseMode properly configurable. Release mode enables very
|
|
// detailed webserver logging and live reloading of HTML templates.
|
|
releaseMode := true
|
|
err = webapi.Start(ctx, shutdownRequestChannel, &shutdownWg, cfg.Listen, db, walletRPC, releaseMode, apiCfg)
|
|
if err != nil {
|
|
log.Errorf("Failed to initialise webapi: %v", err)
|
|
requestShutdown()
|
|
shutdownWg.Wait()
|
|
return err
|
|
}
|
|
|
|
// Wait for shutdown tasks to complete before returning.
|
|
shutdownWg.Wait()
|
|
|
|
return ctx.Err()
|
|
}
|