Add proper logging

actions/serve.go

@@ -5,7 +5,6 @@ import (
 	"crypto/tls"
 	"crypto/x509"
 	"fmt"
-	"log"
 	"net"
 	"net/http"
 	"os"
@@ -19,6 +18,7 @@ import (
 	"gitea.benny.dog/torjus/ezshare/store"
 	"github.com/google/uuid"
 	"github.com/urfave/cli/v2"
+	"go.uber.org/zap"
 	"golang.org/x/crypto/bcrypt"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/credentials"
@@ -29,6 +29,10 @@ func ActionServe(c *cli.Context) error {
 	if err != nil {
 		return err
 	}
+	logger := cfg.Server.GetLogger()
+	serverLogger := logger.Named("SERV")
+	authLogger := logger.Named("AUTH")
+	httpLogger := logger.Named("HTTP")
 
 	// Read certificates
 	srvCertBytes, err := cfg.Server.GRPC.Certs.GetCertBytes()
@@ -63,7 +67,7 @@ func ActionServe(c *cli.Context) error {
 	defer userCloseFunc()
 
 	// Create initial admin-user if neccessary
-	if err := initializeUsers(userStore); err != nil {
+	if err := initializeUsers(userStore, serverLogger); err != nil {
 		return fmt.Errorf("error initializing store: %w", err)
 	}
 
@@ -99,26 +103,28 @@ func ActionServe(c *cli.Context) error {
 		// Setup file-service
 		grpcFileServer := server.NewGRPCFileServiceServer(s)
 		grpcFileServer.Hostname = cfg.Server.Hostname
+		grpcFileServer.Logger = logger.Named("FILE")
 		if c.IsSet("hostname") {
 			grpcFileServer.Hostname = c.String("hostname")
 		}
 
 		// Setup user-service
 		grpcUserServer := server.NewGRPCUserServiceServer(userStore, certSvc)
+		grpcUserServer.Logger = logger.Named("USER")
 
 		lis, err := net.Listen("tcp", grpcAddr)
 		if err != nil {
-			log.Printf("Unable to setup grpc listener: %s\n", err)
+			serverLogger.Errorw("Unable to setup GRPC listener.", "error", err)
 			rootCancel()
 		}
 		srvCert, err := tls.X509KeyPair(srvCertBytes, srvKeyBytes)
 		if err != nil {
-			log.Printf("Unable load server certs: %s\n", err)
+			serverLogger.Errorw("Unable to load server certs.", "error", err)
 			rootCancel()
 		}
 		certPool := x509.NewCertPool()
 		if !certPool.AppendCertsFromPEM(caCertBytes) {
-			log.Println("Unable to load CA cert")
+			serverLogger.Errorw("Unable to load CA certs.")
 			rootCancel()
 		}
 		tlsConfig := &tls.Config{
@@ -130,7 +136,7 @@ func ActionServe(c *cli.Context) error {
 
 		grpcServer := grpc.NewServer(
 			grpc.Creds(creds),
-			grpc.ChainUnaryInterceptor(interceptors.NewAuthInterceptor(userStore)),
+			grpc.ChainUnaryInterceptor(interceptors.NewAuthInterceptor(userStore, authLogger)),
 		)
 		pb.RegisterFileServiceServer(grpcServer, grpcFileServer)
 		pb.RegisterUserServiceServer(grpcServer, grpcUserServer)
@@ -141,12 +147,12 @@ func ActionServe(c *cli.Context) error {
 			grpcServer.GracefulStop()
 		}()
 
-		log.Printf("Starting grpc server")
+		serverLogger.Info("Starting GRPC server.")
 		if err = grpcServer.Serve(lis); err != nil {
-			log.Printf("GRPC Shutdown with error: %s\n", err)
+			serverLogger.Warnw("GRPC shutdown with error", "error", err)
 			rootCancel()
 		}
-		log.Println("GRPC Shutdown")
+		serverLogger.Info("GRPC shutdown.")
 		grpcShutdownCancel()
 	}()
 
@@ -162,6 +168,7 @@ func ActionServe(c *cli.Context) error {
 			httpAddr = c.String("http-addr")
 		}
 		httpServer := server.NewHTTPSever(s, srvCertBytes, cfg.Server.GRPCEndpoint)
+		httpServer.Logger = httpLogger
 		httpServer.Addr = httpAddr
 
 		// wait for cancel
@@ -173,12 +180,12 @@ func ActionServe(c *cli.Context) error {
 			httpServer.Shutdown(timeoutCtx)
 		}()
 
-		log.Printf("Starting http server")
+		serverLogger.Info("Starting HTTP server.")
 		if err := httpServer.ListenAndServe(); err != nil && err != http.ErrServerClosed {
-			log.Printf("HTTP Server shutdown with error: %s\n", err)
+			serverLogger.Warnw("HTTP server shutdown with error.", "error", err)
 			rootCancel()
 		}
-		log.Println("HTTP Shutdown")
+		serverLogger.Info("HTTP server shutdown.")
 		httpShutdownCancel()
 	}()
 
@@ -187,7 +194,7 @@ func ActionServe(c *cli.Context) error {
 	return nil
 }
 
-func initializeUsers(us store.UserStore) error {
+func initializeUsers(us store.UserStore, logger *zap.SugaredLogger) error {
 	// TODO: Logging
 	userIDs, err := us.ListUsers()
 	if err != nil {
@@ -199,7 +206,6 @@ func initializeUsers(us store.UserStore) error {
 	}
 
 	// no users, create initial admin-user
-	log.Printf("No users in store. Creating admin-user.")
 	password := uuid.Must(uuid.NewRandom()).String()
 	hashedPassword, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
 	if err != nil {
@@ -216,7 +222,7 @@ func initializeUsers(us store.UserStore) error {
 	if err := us.StoreUser(admin); err != nil {
 		return err
 	}
-	log.Printf("user created with id %s:%s", admin.Username, password)
+	logger.Infow("Created admin user.", "username", admin.Username, "password", password)
 
 	return nil
 }

config/config.go

@@ -14,6 +14,8 @@ import (
 
 	"gitea.benny.dog/torjus/ezshare/store"
 	"github.com/pelletier/go-toml"
+	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
 	"google.golang.org/grpc/credentials"
 )
 
@@ -310,3 +312,39 @@ func (sc *ServerUserStoreConfig) GetStore() (store.UserStore, func() error, erro
 
 	return nil, nil, fmt.Errorf("invalid store config")
 }
+
+func (c *ServerConfig) GetLogger() *zap.SugaredLogger {
+	logEncoderConfig := zap.NewProductionEncoderConfig()
+	logEncoderConfig.EncodeCaller = zapcore.ShortCallerEncoder
+	logEncoderConfig.EncodeLevel = zapcore.CapitalColorLevelEncoder
+	logEncoderConfig.EncodeTime = zapcore.ISO8601TimeEncoder
+	logEncoderConfig.EncodeDuration = zapcore.StringDurationEncoder
+
+	rootLoggerConfig := &zap.Config{
+		Level:            zap.NewAtomicLevelAt(zap.DebugLevel),
+		OutputPaths:      []string{"stdout"},
+		ErrorOutputPaths: []string{"stdout"},
+		Encoding:         "console",
+		EncoderConfig:    logEncoderConfig,
+		DisableCaller:    true,
+	}
+
+	switch strings.ToUpper(c.LogLevel) {
+	case "DEBUG":
+		rootLoggerConfig.DisableCaller = false
+		rootLoggerConfig.Level = zap.NewAtomicLevelAt(zap.DebugLevel)
+	case "INFO":
+		rootLoggerConfig.Level = zap.NewAtomicLevelAt(zap.InfoLevel)
+	case "WARN", "WARNING":
+		rootLoggerConfig.Level = zap.NewAtomicLevelAt(zap.WarnLevel)
+	case "ERR", "ERROR":
+		rootLoggerConfig.Level = zap.NewAtomicLevelAt(zap.ErrorLevel)
+	}
+
+	rootLogger, err := rootLoggerConfig.Build()
+	if err != nil {
+		panic(err)
+	}
+
+	return rootLogger.Sugar()
+}

go.mod

@@ -3,12 +3,14 @@ module gitea.benny.dog/torjus/ezshare
 go 1.17
 
 require (
+	github.com/dustin/go-humanize v1.0.0
 	github.com/go-chi/chi/v5 v5.0.7
 	github.com/google/go-cmp v0.5.6
 	github.com/google/uuid v1.3.0
 	github.com/pelletier/go-toml v1.9.4
 	github.com/urfave/cli/v2 v2.3.0
 	go.etcd.io/bbolt v1.3.6
+	go.uber.org/zap v1.19.1
 	golang.org/x/crypto v0.0.0-20211202192323-5770296d904e
 	golang.org/x/term v0.0.0-20210927222741-03fcf44c2211
 	google.golang.org/grpc v1.42.0
@@ -19,6 +21,8 @@ require (
 	github.com/cpuguy83/go-md2man/v2 v2.0.1 // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
+	go.uber.org/atomic v1.9.0 // indirect
+	go.uber.org/multierr v1.7.0 // indirect
 	golang.org/x/net v0.0.0-20211203184738-4852103109b8 // indirect
 	golang.org/x/sys v0.0.0-20211205182925-97ca703d548d // indirect
 	golang.org/x/text v0.3.7 // indirect

go.sum

@@ -3,6 +3,8 @@ cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMT
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
 github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
+github.com/benbjohnson/clock v1.1.0 h1:Q92kusRqC1XV2MjkWETPvjJVqKetz1OzxZB7mHJLju8=
+github.com/benbjohnson/clock v1.1.0/go.mod h1:J11/hYXuz8f4ySSvYwY0FKfm+ezbsZBKZxNJlLklBHA=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
 github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
@@ -18,6 +20,10 @@ github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:ma
 github.com/cpuguy83/go-md2man/v2 v2.0.1 h1:r/myEWzV9lfsM1tFLgDyu0atFtJ1fXn261LKYj/3DxU=
 github.com/cpuguy83/go-md2man/v2 v2.0.1/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dustin/go-humanize v1.0.0 h1:VSnTsYCnlFHaM2/igO1h6X3HA71jcobQuxemgkq4zYo=
+github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
@@ -56,8 +62,14 @@ github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+
 github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
 github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/grpc-ecosystem/grpc-gateway v1.16.0/go.mod h1:BDjrQk3hbvj6Nolgz8mAMFbcEtjT1g+wF4CSlocrBnw=
+github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
+github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/pelletier/go-toml v1.9.4 h1:tjENF6MfZAg8e4ZmZTeWaWiT2vXtsoO6+iuOjFhECwM=
 github.com/pelletier/go-toml v1.9.4/go.mod h1:u1nR/EPcESfeI/szUZKdtJ0xRNbUoANCkoOuaOx1Y+c=
+github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
+github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
@@ -67,14 +79,28 @@ github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQD
 github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
+github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/urfave/cli/v2 v2.3.0 h1:qph92Y649prgesehzOrQjdWyxFOp/QVM+6imKHad91M=
 github.com/urfave/cli/v2 v2.3.0/go.mod h1:LJmUH05zAU44vOAcrfzZQKsZbVcdbOG8rtL3/XcUArI=
+github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 go.etcd.io/bbolt v1.3.6 h1:/ecaJf0sk1l4l6V4awd65v2C3ILy7MSj+s/x1ADCIMU=
 go.etcd.io/bbolt v1.3.6/go.mod h1:qXsaaIqmgQH0T+OPdb99Bf+PKfBBQVAdyD6TY9G8XM4=
 go.opentelemetry.io/proto/otlp v0.7.0/go.mod h1:PqfVotwruBrMGOCsRd/89rSnXhoiJIqeYNgFYFoEGnI=
+go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
+go.uber.org/atomic v1.9.0 h1:ECmE8Bn/WFTYwEW/bpKD3M8VtR/zQVbavAoalC1PYyE=
+go.uber.org/atomic v1.9.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
+go.uber.org/goleak v1.1.11-0.20210813005559-691160354723 h1:sHOAIxRGBp443oHZIPB+HsUGaksVCXVQENPxwTfQdH4=
+go.uber.org/goleak v1.1.11-0.20210813005559-691160354723/go.mod h1:cwTWslyiVhfpKIDGSZEM2HlOvcqm+tG4zioyIeLoqMQ=
+go.uber.org/multierr v1.6.0/go.mod h1:cdWPpRnG4AhwMwsgIHip0KRBQjJy5kYEpYjJxpXp9iU=
+go.uber.org/multierr v1.7.0 h1:zaiO/rmgFjbmCXdSYJWQcdvOCsthmdaHfr3Gm2Kx4Ec=
+go.uber.org/multierr v1.7.0/go.mod h1:7EAYxJLBy9rStEaz58O2t4Uvip6FSURkq8/ppBp95ak=
+go.uber.org/zap v1.19.1 h1:ue41HOKd1vGURxrmeKIgELGb3jPW9DMUDGtsinblHwI=
+go.uber.org/zap v1.19.1/go.mod h1:j3DNczoxDZroyBnOT1L/Q79cfUMGZxlv/9dzN7SM1rI=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20211202192323-5770296d904e h1:MUP6MR3rJ7Gk9LEia0LP2ytiH6MuCfs7qYz+47jGdD8=
 golang.org/x/crypto v0.0.0-20211202192323-5770296d904e/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
@@ -82,12 +108,15 @@ golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
+golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
+golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
 golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
@@ -99,6 +128,7 @@ golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -125,6 +155,10 @@ golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGm
 golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
+golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -159,8 +193,13 @@ google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQ
 google.golang.org/protobuf v1.27.1 h1:SnqbnDw1V7RiZcXPx5MEeqPv2s79L9i7BJUlG/+RurQ=
 google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
+gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

server/fileservice.go

@@ -6,16 +6,19 @@ import (
 
 	"gitea.benny.dog/torjus/ezshare/pb"
 	"gitea.benny.dog/torjus/ezshare/store"
+	"github.com/dustin/go-humanize"
+	"go.uber.org/zap"
 )
 
 type GRPCFileServiceServer struct {
+	Logger   *zap.SugaredLogger
 	Hostname string
 	store    store.FileStore
 	pb.UnimplementedFileServiceServer
 }
 
 func NewGRPCFileServiceServer(store store.FileStore) *GRPCFileServiceServer {
-	return &GRPCFileServiceServer{Hostname: "localhost:8051", store: store}
+	return &GRPCFileServiceServer{Hostname: "localhost:8051", store: store, Logger: zap.NewNop().Sugar()}
 }
 
 func (s *GRPCFileServiceServer) UploadFile(ctx context.Context, req *pb.UploadFileRequest) (*pb.UploadFileResponse, error) {
@@ -24,8 +27,10 @@ func (s *GRPCFileServiceServer) UploadFile(ctx context.Context, req *pb.UploadFi
 
 	id, err := s.store.StoreFile(&f)
 	if err != nil {
+		s.Logger.Warnw("Error storing file.", "error", err)
 		return nil, err
 	}
+	s.Logger.Infow("Received file.", "id", id, "size", humanize.Bytes(uint64(len(f.Data))))
 	return &pb.UploadFileResponse{Id: id, FileUrl: fmt.Sprintf("%s/files/%s", s.Hostname, id)}, nil
 }
 
@@ -34,13 +39,18 @@ func (s *GRPCFileServiceServer) GetFile(ctx context.Context, req *pb.GetFileRequ
 	if err != nil {
 		return nil, err
 	}
+	s.Logger.Infow("Sending file to client.", "id", f.FileId, "size", humanize.Bytes(uint64(len(f.Data))))
 
 	return &pb.GetFileResponse{File: f}, nil
 }
 
 func (s *GRPCFileServiceServer) DeleteFile(ctx context.Context, req *pb.DeleteFileRequest) (*pb.DeleteFileResponse, error) {
-	err := s.store.DeleteFile(req.Id)
+	if err := s.store.DeleteFile(req.Id); err != nil {
-	return &pb.DeleteFileResponse{}, err
+		s.Logger.Warnw("Error deleting file.", "error", err)
+		return nil, err
+	}
+	s.Logger.Infow("Deleted file.", "id", req.Id)
+	return &pb.DeleteFileResponse{}, nil
 }
 
 func (s *GRPCFileServiceServer) ListFiles(ctx context.Context, req *pb.ListFilesRequest) (*pb.ListFilesResponse, error) {

server/http.go

@@ -7,9 +7,11 @@ import (
 
 	"gitea.benny.dog/torjus/ezshare/store"
 	"github.com/go-chi/chi/v5"
+	"go.uber.org/zap"
 )
 
 type HTTPServer struct {
+	Logger         *zap.SugaredLogger
 	store          store.FileStore
 	serverGRPCCert []byte
 	grpcEndpoint   string
@@ -23,6 +25,7 @@ type MetadataResponse struct {
 
 func NewHTTPSever(store store.FileStore, certBytes []byte, grpcEndpoint string) *HTTPServer {
 	srv := &HTTPServer{
+		Logger:         zap.NewNop().Sugar(),
 		store:          store,
 		serverGRPCCert: certBytes,
 		grpcEndpoint:   grpcEndpoint,
@@ -38,14 +41,21 @@ func NewHTTPSever(store store.FileStore, certBytes []byte, grpcEndpoint string)
 }
 
 func (s *HTTPServer) ServerCertHandler(w http.ResponseWriter, r *http.Request) {
-	w.Write(s.serverGRPCCert)
+	if _, err := w.Write(s.serverGRPCCert); err != nil {
+		s.Logger.Warnw("Error sending server certificate.", "error", err, "remote_addr", r.RemoteAddr)
+
+	}
+	s.Logger.Infow("Sent server certificate.", "remote_addr", r.RemoteAddr)
 }
 func (s *HTTPServer) MetadataHandler(w http.ResponseWriter, r *http.Request) {
 	md := &MetadataResponse{
 		GRPCEndpoint: s.grpcEndpoint,
 	}
 	encoder := json.NewEncoder(w)
-	encoder.Encode(md)
+	if err := encoder.Encode(md); err != nil {
+		s.Logger.Warnw("Error encoding or sending metadata.", "error", err, "remote_addr", r.RemoteAddr)
+	}
+	s.Logger.Infow("Wrote server cert.", "remote_addr", r.RemoteAddr)
 }
 
 func (s *HTTPServer) FileHandler(w http.ResponseWriter, r *http.Request) {
@@ -53,15 +63,20 @@ func (s *HTTPServer) FileHandler(w http.ResponseWriter, r *http.Request) {
 	f, err := s.store.GetFile(id)
 	if err != nil {
 		if err == store.ErrNoSuchItem {
+			s.Logger.Debugw("Tried to get non-existing file.", "remote_addr", r.RemoteAddr)
 			WriteErrorResponse(w, http.StatusNotFound, "file not found")
 			return
 		}
+		s.Logger.Warnw("Error getting file from store.", "error", err, "remote_addr", r.RemoteAddr)
 		WriteErrorResponse(w, http.StatusInternalServerError, fmt.Sprintf("error: %s", err))
 		return
 	}
 
 	w.Header().Add("Content-Type", http.DetectContentType(f.Data))
-	w.Write(f.Data)
+	if _, err := w.Write(f.Data); err != nil {
+		s.Logger.Warnw("Error sending file.", "error", err, "remote_addr", r.RemoteAddr)
+	}
+	s.Logger.Infow("Sent file.", "remote_addr", r.RemoteAddr)
 }
 
 func WriteErrorResponse(w http.ResponseWriter, status int, message string) {

server/interceptors/auth.go

@@ -5,6 +5,7 @@ import (
 
 	"gitea.benny.dog/torjus/ezshare/pb"
 	"gitea.benny.dog/torjus/ezshare/store"
+	"go.uber.org/zap"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/credentials"
 	"google.golang.org/grpc/peer"
@@ -15,7 +16,7 @@ type ContextKey string
 var ContextKeyRole ContextKey = "role"
 var ContextKeyUserID ContextKey = "userid"
 
-func NewAuthInterceptor(s store.UserStore) grpc.UnaryServerInterceptor {
+func NewAuthInterceptor(s store.UserStore, logger *zap.SugaredLogger) grpc.UnaryServerInterceptor {
 	// TODO: Verify that cert is signed by our ca
 	return func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (resp interface{}, err error) {
 		p, ok := peer.FromContext(ctx)
@@ -31,6 +32,7 @@ func NewAuthInterceptor(s store.UserStore) grpc.UnaryServerInterceptor {
 					if err == nil {
 						newCtx := context.WithValue(ctx, ContextKeyRole, user.UserRole)
 						newCtx = context.WithValue(newCtx, ContextKeyUserID, user.Id)
+						logger.Debugw("Authenticated user.", "username", user.Username, "role", user.UserRole.String())
 						return handler(newCtx, req)
 					}
 				}

server/userservice.go

@@ -9,19 +9,21 @@ import (
 	"gitea.benny.dog/torjus/ezshare/server/interceptors"
 	"gitea.benny.dog/torjus/ezshare/store"
 	"github.com/google/uuid"
+	"go.uber.org/zap"
 	"golang.org/x/crypto/bcrypt"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
 )
 
 type GRPCUserServiceServer struct {
+	Logger      *zap.SugaredLogger
 	store       store.UserStore
 	certService *certs.CertService
 	pb.UnimplementedUserServiceServer
 }
 
 func NewGRPCUserServiceServer(store store.UserStore, certSvc *certs.CertService) *GRPCUserServiceServer {
-	return &GRPCUserServiceServer{store: store, certService: certSvc}
+	return &GRPCUserServiceServer{store: store, certService: certSvc, Logger: zap.NewNop().Sugar()}
 }
 func (s *GRPCUserServiceServer) Register(ctx context.Context, req *pb.RegisterUserRequest) (*pb.RegisterUserResponse, error) {
 	// Check if user already exists
@@ -42,9 +44,12 @@ func (s *GRPCUserServiceServer) Register(ctx context.Context, req *pb.RegisterUs
 	}
 
 	if err := s.store.StoreUser(user); err != nil {
+		s.Logger.Warnw("Error storing registered user.", "error", err)
 		return nil, status.Error(codes.Internal, fmt.Sprintf("unable to store user: %s", err))
 	}
 
+	s.Logger.Infow("Registered new user.", "username", user.Username)
+
 	return &pb.RegisterUserResponse{Id: user.Id, Token: ""}, nil
 }
 
@@ -54,6 +59,7 @@ func (s *GRPCUserServiceServer) Login(_ context.Context, req *pb.LoginUserReques
 		if err == store.ErrNoSuchItem {
 			return nil, status.Error(codes.NotFound, "no such user")
 		}
+		s.Logger.Warnw("Error retrieving user from store.", "error", err)
 		return nil, status.Error(codes.Internal, "error getting user from store")
 	}
 
@@ -63,6 +69,7 @@ func (s *GRPCUserServiceServer) Login(_ context.Context, req *pb.LoginUserReques
 
 	cert, key, err := s.certService.NewClient(user.Id)
 	if err != nil {
+		s.Logger.Warnw("Error generating client certificate.", "error", err)
 		return nil, status.Error(codes.Internal, "unable to generate client certificate")
 	}
 
@@ -71,6 +78,7 @@ func (s *GRPCUserServiceServer) Login(_ context.Context, req *pb.LoginUserReques
 		ClientKey:  key,
 	}
 
+	s.Logger.Infow("Logged in user.", "username", user.Username)
 	return resp, nil
 }
 
@@ -102,8 +110,10 @@ func (s *GRPCUserServiceServer) ChangePassword(ctx context.Context, req *pb.Chan
 	}
 	user.HashedPassword = newPasswordHash
 	if err := s.store.StoreUser(user); err != nil {
+		s.Logger.Warnw("Error storing user with new password.", "error", err)
 		return nil, status.Error(codes.Internal, "unable to store new password")
 	}
+	s.Logger.Infow("Set new password for user.", "username", user.Username)
 	return &pb.Empty{}, nil
 }