Update golangci-lint to 1.40.1

.github/workflows/ci.yaml

@@ -70,7 +70,7 @@ jobs:
       - name: Run linter
         uses: golangci/golangci-lint-action@v2
         with:
-          version: v1.39.0
+          version: v1.40.1
 
   docker:
     name: Docker

Makefile

@@ -2,7 +2,7 @@ ROOT_DIR     := $(shell dirname $(realpath $(lastword $(MAKEFILE_LIST))))
 IMAGE_NAME   := mtg
 APP_NAME     := $(IMAGE_NAME)
 
-GOLANGCI_LINT_VERSION := v1.39.0
+GOLANGCI_LINT_VERSION := v1.40.1
 
 VERSION_GO         := $(shell go version)
 VERSION_DATE       := $(shell date -Ru)

internal/cli/access.go

@@ -26,10 +26,10 @@ type accessResponse struct {
 type accessResponseURLs struct {
 	IP        net.IP `json:"ip"`
 	Port      uint   `json:"port"`
-	TgURL     string `json:"tg_url"`
-	TgQrCode  string `json:"tg_qrcode"`
-	TmeURL    string `json:"tme_url"`
-	TmeQrCode string `json:"tme_qrcode"`
+	TgURL     string `json:"tg_url"`     // nolint: tagliatelle
+	TgQrCode  string `json:"tg_qrcode"`  // nolint: tagliatelle
+	TmeURL    string `json:"tme_url"`    // nolint: tagliatelle
+	TmeQrCode string `json:"tme_qrcode"` // nolint: tagliatelle
 }
 
 type Access struct {

internal/config/config.go

@@ -12,23 +12,23 @@ import (
 type Config struct {
 	Debug                bool          `json:"debug"`
 	Secret               mtglib.Secret `json:"secret"`
-	BindTo               TypeHostPort  `json:"bind-to"`
-	TCPBuffer            TypeBytes     `json:"tcp-buffer"`
-	PreferIP             TypePreferIP  `json:"prefer-ip"`
-	DomainFrontingPort   TypePort      `json:"domain-fronting-port"`
-	TolerateTimeSkewness TypeDuration  `json:"tolerate-time-skewness"`
+	BindTo               TypeHostPort  `json:"bindTo"`
+	TCPBuffer            TypeBytes     `json:"tcpBuffer"`
+	PreferIP             TypePreferIP  `json:"preferIp"`
+	DomainFrontingPort   TypePort      `json:"domainFrontingPort"`
+	TolerateTimeSkewness TypeDuration  `json:"tolerateTimeSkewness"`
 	Concurrency          uint          `json:"concurrency"`
 	Defense              struct {
 		AntiReplay struct {
 			Enabled   bool          `json:"enabled"`
-			MaxSize   TypeBytes     `json:"max-size"`
-			ErrorRate TypeErrorRate `json:"error-rate"`
-		} `json:"anti-replay"`
+			MaxSize   TypeBytes     `json:"maxSize"`
+			ErrorRate TypeErrorRate `json:"errorRate"`
+		} `json:"antiReplay"`
 		Blocklist struct {
 			Enabled             bool               `json:"enabled"`
-			DownloadConcurrency uint               `json:"download-concurrency"`
+			DownloadConcurrency uint               `json:"downloadConcurrency"`
 			URLs                []TypeBlocklistURI `json:"urls"`
-			UpdateEach          TypeDuration       `json:"update-each"`
+			UpdateEach          TypeDuration       `json:"updateEach"`
 		} `json:"blocklist"`
 	} `json:"defense"`
 	Network struct {
@@ -37,21 +37,21 @@ type Config struct {
 			HTTP TypeDuration `json:"http"`
 			Idle TypeDuration `json:"idle"`
 		} `json:"timeout"`
-		DOHIP   TypeIP    `json:"doh-ip"`
+		DOHIP   TypeIP    `json:"dohIp"`
 		Proxies []TypeURL `json:"proxies"`
 	} `json:"network"`
 	Stats struct {
 		StatsD struct {
 			Enabled      bool                `json:"enabled"`
 			Address      TypeHostPort        `json:"address"`
-			MetricPrefix TypeMetricPrefix    `json:"metric-prefix"`
-			TagFormat    TypeStatsdTagFormat `json:"tag-format"`
+			MetricPrefix TypeMetricPrefix    `json:"metricPrefix"`
+			TagFormat    TypeStatsdTagFormat `json:"tagFormat"`
 		} `json:"statsd"`
 		Prometheus struct {
 			Enabled      bool             `json:"enabled"`
-			BindTo       TypeHostPort     `json:"bind-to"`
-			HTTPPath     TypeHTTPPath     `json:"http-path"`
-			MetricPrefix TypeMetricPrefix `json:"metric-prefix"`
+			BindTo       TypeHostPort     `json:"bindTo"`
+			HTTPPath     TypeHTTPPath     `json:"httpPath"`
+			MetricPrefix TypeMetricPrefix `json:"metricPrefix"`
 		} `json:"prometheus"`
 	} `json:"stats"`
 }
@@ -84,23 +84,23 @@ func (c *Config) String() string {
 type configRaw struct {
 	Debug                bool   `toml:"debug" json:"debug,omitempty"`
 	Secret               string `toml:"secret" json:"secret"`
-	BindTo               string `toml:"bind-to" json:"bind-to"`
-	TCPBuffer            string `toml:"tcp-buffer" json:"tcp-buffer,omitempty"`
-	PreferIP             string `toml:"prefer-ip" json:"prefer-ip,omitempty"`
-	DomainFrontingPort   uint   `toml:"domain-fronting-port" json:"domain-fronting-port,omitempty"`
-	TolerateTimeSkewness string `toml:"tolerate-time-skewness" json:"tolerate-time-skewness,omitempty"`
+	BindTo               string `toml:"bind-to" json:"bindTo"`
+	TCPBuffer            string `toml:"tcp-buffer" json:"tcpBuffer,omitempty"`
+	PreferIP             string `toml:"prefer-ip" json:"preferIp,omitempty"`
+	DomainFrontingPort   uint   `toml:"domain-fronting-port" json:"domainFrontingPort,omitempty"`
+	TolerateTimeSkewness string `toml:"tolerate-time-skewness" json:"tolerateTimeSkewness,omitempty"`
 	Concurrency          uint   `toml:"concurrency" json:"concurrency,omitempty"`
 	Defense              struct {
 		AntiReplay struct {
 			Enabled   bool    `toml:"enabled" json:"enabled,omitempty"`
-			MaxSize   string  `toml:"max-size" json:"max-size,omitempty"`
-			ErrorRate float64 `toml:"error-rate" json:"error-rate,omitempty"`
-		} `toml:"anti-replay" json:"anti-replay,omitempty"`
+			MaxSize   string  `toml:"max-size" json:"maxSize,omitempty"`
+			ErrorRate float64 `toml:"error-rate" json:"errorRate,omitempty"`
+		} `toml:"anti-replay" json:"antiReplay,omitempty"`
 		Blocklist struct {
 			Enabled             bool     `toml:"enabled" json:"enabled,omitempty"`
-			DownloadConcurrency uint     `toml:"download-concurrency" json:"download-concurrency,omitempty"`
+			DownloadConcurrency uint     `toml:"download-concurrency" json:"downloadConcurrency,omitempty"`
 			URLs                []string `toml:"urls" json:"urls,omitempty"`
-			UpdateEach          string   `toml:"update-each" json:"update-each,omitempty"`
+			UpdateEach          string   `toml:"update-each" json:"updateEach,omitempty"`
 		} `toml:"blocklist" json:"blocklist,omitempty"`
 	} `toml:"defense" json:"defense,omitempty"`
 	Network struct {
@@ -109,21 +109,21 @@ type configRaw struct {
 			HTTP string `toml:"http" json:"http,omitempty"`
 			Idle string `toml:"idle" json:"idle,omitempty"`
 		} `toml:"timeout" json:"timeout,omitempty"`
-		DOHIP   string   `toml:"doh-ip" json:"doh-ip,omitempty"`
+		DOHIP   string   `toml:"doh-ip" json:"dohIp,omitempty"`
 		Proxies []string `toml:"proxies" json:"proxies,omitempty"`
 	} `toml:"network" json:"network,omitempty"`
 	Stats struct {
 		StatsD struct {
 			Enabled      bool   `toml:"enabled" json:"enabled,omitempty"`
 			Address      string `toml:"address" json:"address,omitempty"`
-			MetricPrefix string `toml:"metric-prefix" json:"metric-prefix,omitempty"`
-			TagFormat    string `toml:"tag-format" json:"tag-format,omitempty"`
+			MetricPrefix string `toml:"metric-prefix" json:"metricPrefix,omitempty"`
+			TagFormat    string `toml:"tag-format" json:"tagFormat,omitempty"`
 		} `toml:"statsd" json:"statsd,omitempty"`
 		Prometheus struct {
 			Enabled      bool   `toml:"enabled" json:"enabled,omitempty"`
-			BindTo       string `toml:"bind-to" json:"bind-to,omitempty"`
-			HTTPPath     string `toml:"http-path" json:"http-path,omitempty"`
-			MetricPrefix string `toml:"metric-prefix" json:"metric-prefix,omitempty"`
+			BindTo       string `toml:"bind-to" json:"bindTo,omitempty"`
+			HTTPPath     string `toml:"http-path" json:"httpPath,omitempty"`
+			MetricPrefix string `toml:"metric-prefix" json:"metricPrefix,omitempty"`
 		} `toml:"prometheus" json:"prometheus,omitempty"`
 	} `toml:"stats" json:"stats,omitempty"`
 }

internal/config/type_prefer_ip.go

@@ -6,10 +6,21 @@ import (
 )
 
 const (
+	// TypePreferIPPreferIPv4 states that you prefer to use IPv4 addresses
+	// but IPv6 is also possible.
 	TypePreferIPPreferIPv4 = "prefer-ipv4"
+
+	// TypePreferIPPreferIPv6 states that you prefer to use IPv6 addresses
+	// but IPv4 is also possible.
 	TypePreferIPPreferIPv6 = "prefer-ipv6"
-	TypePreferOnlyIPv4     = "only-ipv4"
-	TypePreferOnlyIPv6     = "only-ipv6"
+
+	// TypePreferOnlyIPv4 states that you prefer to use IPv4 addresses
+	// only.
+	TypePreferOnlyIPv4 = "only-ipv4"
+
+	// TypePreferOnlyIPv6 states that you prefer to use IPv6 addresses
+	// only.
+	TypePreferOnlyIPv6 = "only-ipv6"
 )
 
 type TypePreferIP struct {

internal/config/type_statsd_tag_format.go

@@ -6,8 +6,16 @@ import (
 )
 
 const (
+	// TypeStatsdTagFormatInfluxdb defines a tag format compatible with
+	// InfluxDB.
 	TypeStatsdTagFormatInfluxdb = "influxdb"
-	TypeStatsdTagFormatDatadog  = "datadog"
+
+	// TypeStatsdTagFormatDatadog defines a tag format compatible with
+	// DataDog.
+	TypeStatsdTagFormatDatadog = "datadog"
+
+	// TypeStatsdTagFormatGraphite defines a tag format compatible with
+	// Graphite.
 	TypeStatsdTagFormatGraphite = "graphite"
 )
 

mtglib/internal/faketls/client_hello_test.go

@@ -18,9 +18,9 @@ import (
 type ClientHelloSnapshot struct {
 	Time        int    `json:"time"`
 	Random      string `json:"random"`
-	SessionID   string `json:"session-id"`
+	SessionID   string `json:"sessionId"`
 	Host        string `json:"host"`
-	CipherSuite int    `json:"cipher-suite"`
+	CipherSuite int    `json:"cipherSuite"`
 	Full        string `json:"full"`
 }
 

mtglib/internal/faketls/init.go

@@ -6,25 +6,43 @@ import (
 )
 
 const (
+	// RandomLen defines a size of the random digest in TLS Hellos.
 	RandomLen = 32
 
-	ClientHelloRandomOffset    = 6
+	// ClientHelloRandomOffset is an offset in ClientHello record where
+	// random digest is started.
+	ClientHelloRandomOffset = 6
+
+	// ClientHelloSessionIDOffset is an offset in ClientHello record where
+	// SessionID is started.
 	ClientHelloSessionIDOffset = ClientHelloRandomOffset + RandomLen
-	ClientHelloMinLen          = 4
 
+	// ClientHelloMinLen is a minimal possible length of
+	// ClientHello record.
+	ClientHelloMinLen = 4
+
+	// WelcomePacketRandomOffset is an offset of random in ServerHello
+	// packet (including record envelope).
 	WelcomePacketRandomOffset = 11
 
+	// HandshakeTypeClient is a value representing a client handshake.
 	HandshakeTypeClient = 0x01
+
+	// HandshakeTypeServer is a value representing a server handshake.
 	HandshakeTypeServer = 0x02
 
+	// ChangeCipherValue is a value representing a change cipher
+	// specification record.
 	ChangeCipherValue = 0x01
 
+	// ExtensionSNI is a value for TLS extension 'SNI'.
 	ExtensionSNI = 0x00
 )
 
 var (
-	ErrBadDigest        = errors.New("bad digest")
-	ErrAntiReplayAttack = errors.New("antireplay attack was detected")
+	// ErrBadDigest is returned if given TLS Client Hello mismatches with a
+	// derived one.
+	ErrBadDigest = errors.New("bad digest")
 
 	serverHelloSuffix = []byte{
 		0x00,       // no compression

mtglib/internal/faketls/record/init.go

@@ -7,9 +7,18 @@ const TLSMaxRecordSize = 65535 // max uint16
 type Type uint8
 
 const (
+	// TypeChangeCipherSpec defines a byte value of the TLS record when a
+	// peer wants to change a specifications of the chosen cipher.
 	TypeChangeCipherSpec Type = 0x14
-	TypeHandshake        Type = 0x16
-	TypeApplicationData  Type = 0x17
+
+	// TypeHandshake defines a byte value of the TLS record when a peer
+	// initiates a new TLS connection and wants to make a handshake
+	// ceremony.
+	TypeHandshake Type = 0x16
+
+	// TypeApplicationData defines a byte value of the TLS record when a
+	// peer sends an user data, not a control frames.
+	TypeApplicationData Type = 0x17
 )
 
 func (t Type) String() string {
@@ -37,9 +46,16 @@ func (t Type) Valid() error {
 type Version uint16
 
 const (
+	// Version10 defines a TLS1.0.
 	Version10 Version = 769 // 0x03 0x01
+
+	// Version11 defines a TLS1.1.
 	Version11 Version = 770 // 0x03 0x02
+
+	// Version12 defines a TLS1.2.
 	Version12 Version = 771 // 0x03 0x03
+
+	// Version13 defines a TLS1.3.
 	Version13 Version = 772 // 0x03 0x04
 )
 

mtglib/internal/faketls/testdata/client-hello-bad-fa2e46cdb33e2a1b.json

@@ -1,8 +1,8 @@
 {
   "time": 1617181365,
   "random": "XvCPc3aAbHbhRLv0kUmy6BfPZOGvsused5/HNsKXEPs=",
-  "session-id": "St2BZ2uHMFn3B2trD1jfdtpjoJOOg6JBeLhFcyCMCq4=",
+  "sessionId": "St2BZ2uHMFn3B2trD1jfdtpjoJOOg6JBeLhFcyCMCq4=",
   "host": "storage.googleapis.com",
-  "cipher-suite": 4867,
+  "cipherSuite": 4867,
   "full": "AQAB/AMDXvCPc3aAbHbhRLv0kUmy6BfPZOGvsused5/HNsKXEPsgSt2BZ2uHMFn3B2trD1jfdtpjoJOOg6JBeLhFcyCACq4ANBMDEwETAsAswCvAJMAjwArACcypwDDAL8AowCfAFMATzKgAnQCcAD0APAA1AC/ACMASAAoBAAF//wEAAQAAAAAbABkAABZzdG9yYWdlLmdvb2dsZWFwaXMuY29tABcAAAANABgAFgQDCAQEAQUDAgMIBQgFBQEIBgYBAgEABQAFANAAAAAzdAAAABIAAAAQADAALgJoMgVoMi0xNgVoMi0xNQVoMi0xNAhzcGR5LzMuMQZzcGR5LzMIaHR0cC8xLjEACwACAQAAMwAmACQAHQAgB/7oLx9JElIALsLJS91H2QNyU1H0osKwIUelVndsLyIALQACAQEAKwAJCAMEAwMDAgMBAAoACgAIAB0AFwAYABkAFQChAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA="
 }

mtglib/internal/faketls/testdata/client-hello-ok-19dfe38384b9884b.json

@@ -1,8 +1,8 @@
 {
   "time": 1617181365,
   "random": "XvCPc3aAbHbhRLv0kUmy6BfPZOGvsused5/HNsKXEPs=",
-  "session-id": "St2BZ2uHMFn3B2trD1jfdtpjoJOOg6JBeLhFcyCMCq4=",
+  "sessionId": "St2BZ2uHMFn3B2trD1jfdtpjoJOOg6JBeLhFcyCMCq4=",
   "host": "storage.googleapis.com",
-  "cipher-suite": 4867,
+  "cipherSuite": 4867,
   "full": "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"
-}
+}

mtglib/internal/faketls/testdata/client-hello-ok-48f8a72a56f3174a.json

@@ -1,8 +1,8 @@
 {
   "time": 1617181352,
   "random": "oYEu33jl+zQbUKMtQbV1OHB0gXIM2y2aq9iY0QX12os=",
-  "session-id": "FGqA3ZFYrSlj//xl7lammNn64K9/MK2mQ3HJUGvP+8g=",
+  "sessionId": "FGqA3ZFYrSlj//xl7lammNn64K9/MK2mQ3HJUGvP+8g=",
   "host": "storage.googleapis.com",
-  "cipher-suite": 4867,
+  "cipherSuite": 4867,
   "full": "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"
-}
+}

mtglib/internal/faketls/testdata/client-hello-ok-651054256093c6cd.json

@@ -1,8 +1,8 @@
 {
   "time": 1617181352,
   "random": "5V5sSprk/tFIgy+x1BeKNGhLlFkqfggLpgN7GYOA1ro=",
-  "session-id": "jxr4d6PXPDk+Lwx3WUp9wvj8TGlOxEdrRJ0ydyJ9+H8=",
+  "sessionId": "jxr4d6PXPDk+Lwx3WUp9wvj8TGlOxEdrRJ0ydyJ9+H8=",
   "host": "storage.googleapis.com",
-  "cipher-suite": 4867,
+  "cipherSuite": 4867,
   "full": "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"
-}
+}

mtglib/internal/faketls/testdata/client-hello-ok-79d01ef18a9d2621.json

@@ -1,8 +1,8 @@
 {
   "time": 1617181365,
   "random": "8xljlOhkDlkafEF5vu3e1r3fWvh8AX548wC3hLZ3szQ=",
-  "session-id": "00uvDYKnFyZFKyf3HlLwWGCOyeHsPFiU5UZ+Fs5pDAU=",
+  "sessionId": "00uvDYKnFyZFKyf3HlLwWGCOyeHsPFiU5UZ+Fs5pDAU=",
   "host": "storage.googleapis.com",
-  "cipher-suite": 4867,
+  "cipherSuite": 4867,
   "full": "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"
-}
+}

mtglib/internal/faketls/testdata/client-hello-ok-7a5569f05b118145.json

@@ -1,8 +1,8 @@
 {
   "time": 1617181352,
   "random": "zja3MLZ8WGSfsQRtPV75+tY6gbK3zKPi1Sy7SBBafg4=",
-  "session-id": "qPut2yMqXa9zGLII/872SQ3d4Tfqo0uoDb7tpkRfBnA=",
+  "sessionId": "qPut2yMqXa9zGLII/872SQ3d4Tfqo0uoDb7tpkRfBnA=",
   "host": "storage.googleapis.com",
-  "cipher-suite": 4867,
+  "cipherSuite": 4867,
   "full": "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"
-}
+}

mtglib/internal/obfuscated2/handshake_frame.go

@@ -1,6 +1,8 @@
 package obfuscated2
 
 const (
+	// DefaultDC defines a number of the default DC to use. This value used
+	// only if a value from obfuscated2 handshake frame is 0 (default).
 	DefaultDC = 2
 
 	handshakeFrameLen = 64

mtglib/proxy_test.go

@@ -166,7 +166,7 @@ func (suite *ProxyTestSuite) TestHTTPSRequest() {
 
 	jsonStruct := struct {
 		Headers struct {
-			TraceID string `json:"X-Amzn-Trace-Id"`
+			TraceID string `json:"X-Amzn-Trace-Id"` // nolint: tagliatelle
 		} `json:"headers"`
 	}{}
 

mtglib/secret.go

@@ -56,7 +56,7 @@ func (s Secret) MarshalText() ([]byte, error) {
 	return nil, nil
 }
 
-// MarshalText is to support text.Unmarshaller interface.
+// UnmarshalText is to support text.Unmarshaller interface.
 func (s *Secret) UnmarshalText(data []byte) error {
 	text := string(data)
 	if text == "" {

network/init.go

@@ -53,8 +53,14 @@ const (
 	//
 	// When circuit breaker is closed, it clears an error states each
 	// ProxyDialerResetFailuresTimeout.
-	ProxyDialerOpenThreshold        = 5
-	ProxyDialerHalfOpenTimeout      = time.Minute
+	ProxyDialerOpenThreshold = 5
+
+	// ProxyDialerHalfOpenTimeout defines a halfopen timeout for circuit
+	// breaker.
+	ProxyDialerHalfOpenTimeout = time.Minute
+
+	// ProxyDialerResetFailuresTimeout defines a timeout for resetting a
+	// failure.
 	ProxyDialerResetFailuresTimeout = 10 * time.Second
 
 	// DefaultDOHHostname defines a default IP address for DOH host.

network/network_test.go

@@ -42,7 +42,7 @@ func (suite *NetworkTestSuite) TestLocalHTTPRequest() {
 
 	jsonStruct := struct {
 		Headers struct {
-			UserAgent []string `json:"User-Agent"`
+			UserAgent []string `json:"User-Agent"` // nolint: tagliatelle
 		} `json:"headers"`
 	}{}
 
@@ -67,7 +67,7 @@ func (suite *NetworkTestSuite) TestRealHTTPRequest() {
 
 	jsonStruct := struct {
 		Headers struct {
-			UserAgent string `json:"User-Agent"`
+			UserAgent string `json:"User-Agent"` // nolint: tagliatelle
 		} `json:"headers"`
 	}{}
 

stats/init.go

@@ -90,8 +90,12 @@ const (
 	MetricReplayAttacks = "replay_attacks"
 
 	// TagIPFamily defines a name of the 'ip_family' tag and all values.
-	TagIPFamily     = "ip_family"
+	TagIPFamily = "ip_family"
+
+	// TagIPFamilyIPv4 defines a value of 'ip_family' of IPv4.
 	TagIPFamilyIPv4 = "ipv4"
+
+	// TagIPFamilyIPv6 defines a value of 'ip_family' of IPv6.
 	TagIPFamilyIPv6 = "ipv6"
 
 	// TagTelegramIP defines a name of the 'telegram_ip' tag.
@@ -101,7 +105,13 @@ const (
 	TagDC = "dc"
 
 	// TagDirection defines a name of the 'direction' tag.
-	TagDirection           = "direction"
-	TagDirectionToClient   = "to_client"
+	TagDirection = "direction"
+
+	// TagDirectionToClient defines that traffic is sent from Telegram to a
+	// client.
+	TagDirectionToClient = "to_client"
+
+	// TagDirectionFromClient defines that traffic is sent from a client to
+	// Telegram.
 	TagDirectionFromClient = "from_client"
 )