.github/workflows/ci.yml

@@ -19,24 +19,17 @@ jobs:
     steps:
       - name: Check out code into the Go module directory
         uses: actions/checkout@v2
-      - name: Set up Go 1.17
-        uses: actions/setup-go@v2
-        with:
-          # TODO: Should migrate to 1.18 later
-          go-version: '1.17'
-      - name: Get dependencies
-        run: go mod tidy
       - name: Lint code with golangci-lint
-        uses: golangci/golangci-lint-action@v3
+        uses: golangci/golangci-lint-action@v2
         with:
-          version: v1.50.1
+          version: v1.36
           only-new-issues: true
   tests:
     name: Tests
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go-version: ['1.13', '1.14', '1.15', '1.16', '1.17']
+        go-version: ['1.11', '1.12', '1.13', '1.14', '1.15', '1.16', '1.17']
     steps:
       - name: Set up Go ${{ matrix.go-version }}
         uses: actions/setup-go@v2

.golangci.yml

@@ -6,33 +6,20 @@ output:
   format: colored-line-number
   sort-results: true
 
-# Linters below do not support go1.18 yet because of generics.
-# See https://github.com/golangci/golangci-lint/issues/2649
-#    - bodyclose
-#    - sqlclosecheck
-
 linters:
   disable-all: true
   enable:
-    - paralleltest
-    - tparallel
-    - asciicheck
-    - asasalint
-    - varnamelen
-    - reassign
-    - nilnil
-    - nilerr
-    - nakedret
-    - goprintffuncname
-    - typecheck
-    - errchkjson
+    - deadcode
     - errcheck
     - gosimple
     - govet
     - ineffassign
     - staticcheck
+    - structcheck
     - unused
     - unparam
+    - varcheck
+    - bodyclose
     - dogsled
     - dupl
     - errorlint
@@ -45,15 +32,20 @@ linters:
     - gocyclo
     - godot
     - goimports
-    - revive
+    - golint
+    - gomnd
     - gosec
+    - ifshort
+    - interfacer
     - lll
     - makezero
+    - maligned
     - misspell
     - nestif
     - prealloc
     - predeclared
-    - exportloopref
+    - scopelint
+    - sqlclosecheck
     - unconvert
     - whitespace
 
@@ -64,11 +56,9 @@ linters-settings:
     enable:
       - assign
       - atomic
-      - atomicalign
       - bools
       - buildtag
       - copylocks
-      - fieldalignment
       - httpresponse
       - loopclosure
       - lostcancel
@@ -80,6 +70,7 @@ linters-settings:
       - unmarshal
       - unreachable
       - unsafeptr
+      - unused
     settings:
       printf:
         funcs:
@@ -138,13 +129,11 @@ linters-settings:
     threshold: 200
   errorlint:
     errorf: true
-    asserts: false
-    comparison: false
   exhaustive:
     check-generated: false
     default-signifies-exhaustive: false
   funlen:
-    lines: 90
+    lines: 60
     statements: 40
   gocognit:
     min-complexity: 25
@@ -154,6 +143,8 @@ linters-settings:
     local-prefixes: github.com/retailcrm/messenger
   lll:
     line-length: 120
+  maligned:
+    suggest-new: true
   misspell:
     locale: US
   nestif:
@@ -161,36 +152,28 @@ linters-settings:
   whitespace:
     multi-if: false
     multi-func: false
-  varnamelen:
-    max-distance: 10
-    ignore-map-index-ok: true
-    ignore-type-assert-ok: true
-    ignore-chan-recv-ok: true
-    ignore-decls:
-      - t *testing.T
-      - e error
-      - i int
+
 issues:
   exclude-rules:
     - path: _test\.go
       linters:
+        - gomnd
         - lll
+        - bodyclose
         - errcheck
+        - sqlclosecheck
         - misspell
         - ineffassign
         - whitespace
         - makezero
+        - maligned
+        - ifshort
         - errcheck
         - funlen
         - goconst
         - gocognit
         - gocyclo
         - godot
-        - unused
-        - errchkjson
-        - varnamelen
-    - path: \.go
-      text: "Error return value of `io.WriteString` is not checked"
   exclude-use-default: true
   exclude-case-sensitive: false
   max-issues-per-linter: 0
@@ -202,4 +185,4 @@ severity:
   case-sensitive: false
 
 service:
-  golangci-lint-version: 1.50.x
+  golangci-lint-version: 1.36.x

actions.go

@@ -24,20 +24,3 @@ const (
 	// status.
 	AccountLinkingAction
 )
-
-// SenderAction is used to send a specific action (event) to the Facebook.
-// The result of sending said action is supposed to give more interactivity to the bot.
-type SenderAction string
-
-const (
-	// MarkSeen marks message as seen.
-	MarkSeen SenderAction = "MARK_SEEN"
-	// TypingOn turns on "Bot is typing..." indicator.
-	TypingOn SenderAction = "TYPING_ON"
-	// TypingOff turns off typing indicator.
-	TypingOff SenderAction = "TYPING_OFF"
-	// React to the message.
-	React SenderAction = "REACT"
-	// Unreact to the message (remove reaction).
-	Unreact SenderAction = "UNREACT"
-)

go.mod

@@ -1,11 +1,8 @@
 module github.com/retailcrm/messenger
 
-require (
-	github.com/stretchr/testify v1.2.2
-	golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7
-)
-
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/stretchr/testify v1.2.2
+	golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7
 )

message.go

@@ -66,8 +66,6 @@ type Read struct {
 	RawWatermark int64 `json:"watermark"`
 	// Seq is the sequence the message was sent in.
 	Seq int `json:"seq"`
-	// Mid is the ID of the message.
-	Mid string `json:"mid"`
 }
 
 // IGMessageRead represents data with the read message ID. Present in the Instagram webhook.
@@ -81,7 +79,7 @@ type IGMessageReaction struct {
 	// Mid is a message ID.
 	Mid string `json:"mid"`
 	// Action can be {react|unreact}
-	Action ReactionAction `json:"action"`
+	Action string `json:"action"`
 	// Reaction is a reaction name. Optional.
 	Reaction string `json:"reaction,omitempty"`
 	// Emoji is optional.
@@ -94,10 +92,8 @@ type IGMessageProduct struct {
 	ID string `json:"id,omitempty"`
 }
 
-// IGMessageReferral represents Instagram message referral with ad data and product ID.
+// IGMessageReferral represents Instagram message referral with product ID.
 type IGMessageReferral struct {
-	// Ad data
-	Referral
 	// Product data.
 	Product IGMessageProduct `json:"product,omitempty"`
 }
@@ -138,10 +134,6 @@ type PostBack struct {
 	Payload string `json:"payload"`
 	// Optional referral info
 	Referral Referral `json:"referral"`
-	// Title for the CTA that was clicked on
-	Title string `json:"title"`
-	// Message ID
-	Mid string `json:"mid"`
 }
 
 type AccountLinking struct {

messenger.go

@@ -198,7 +198,7 @@ func (m *Messenger) ProfileByID(id int64, profileFields []string) (Profile, erro
 
 	err = json.Unmarshal(content, &p)
 	if err != nil {
-		return p, NewUnmarshalError(err).WithContent(content)
+		return p, err
 	}
 
 	if p == *new(Profile) {
@@ -508,29 +508,6 @@ func (m *Messenger) EnableChatExtension(homeURL HomeURL) error {
 	return checkFacebookError(resp.Body)
 }
 
-func (m *Messenger) SenderAction(to Recipient, action SenderAction) (QueryResponse, error) {
-	response := &Response{
-		token:          m.token,
-		to:             to,
-		sendAPIVersion: m.sendAPIVersion,
-	}
-	return response.SenderAction(action)
-}
-
-func (m *Messenger) InstagramReaction(
-	to Recipient,
-	mid string,
-	action ReactionAction,
-	reaction ...string,
-) (QueryResponse, error) {
-	response := &Response{
-		token:          m.token,
-		to:             to,
-		sendAPIVersion: m.sendAPIVersion,
-	}
-	return response.InstagramReaction(mid, action, reaction...)
-}
-
 // classify determines what type of message a webhook event is.
 func (m *Messenger) classify(info MessageInfo) Action {
 	if info.Message != nil {

receiving.go

@@ -35,8 +35,6 @@ type MessageInfo struct {
 	// Delivery is the contents of a message if it is a DeliveryAction.
 	// Nil if it is not a DeliveryAction.
 	Delivery *Delivery `json:"delivery"`
-	// Reaction represents reaction to Instagram message.
-	Reaction *IGMessageReaction `json:"reaction,omitempty"`
 
 	PostBack *PostBack `json:"postback"`
 
@@ -80,26 +78,6 @@ type Referral struct {
 	Source string `json:"source"`
 	// The identifier dor the referral
 	Type string `json:"type"`
-	// ID of the ad
-	AdID string `json:"ad_id,omitempty"`
-	// The data containing information about the CTM ad, the user initiated the thread from.
-	AdsContextData AdsContextData `json:"ads_context_data,omitempty"`
-	// URI of the site from which the message was sent to the Facebook chat plugin.
-	RefererURI string `json:"referer_uri,omitempty"`
-}
-
-// AdsContextData represents data containing information about the CTM ad, the user initiated the thread from.
-type AdsContextData struct {
-	// Title of the Ad
-	AdTitle string `json:"ad_title"`
-	// Url of the image from the Ad the user is interested
-	PhotoURL string `json:"photo_url,omitempty"`
-	// Thumbnail url of the video from the ad
-	VideoURL string `json:"video_url,omitempty"`
-	// ID of the post
-	PostID string `json:"post_id"`
-	// Product ID from the Ad the user is interested
-	ProductID string `json:"product_id,omitempty"`
 }
 
 // Sender is who the message was sent from.
@@ -139,20 +117,7 @@ type Payload struct {
 	URL   string `json:"url,omitempty"`
 	Title string `json:"title,omitempty"`
 	// Coordinates is Lat/Long pair of location pin
-	Coordinates  *Coordinates `json:"coordinates,omitempty"`
-	TemplateType string       `json:"template_type,omitempty"`
-	Buttons      []Button     `json:"buttons,omitempty"`
-}
-
-type Button struct {
-	Type                string `json:"type,omitempty"`
-	Title               string `json:"title,omitempty"`
-	Payload             string `json:"payload,omitempty"`
-	URL                 string `json:"url,omitempty"`
-	WebviewHeightRatio  string `json:"webview_height_ratio,omitempty"`
-	MessengerExtensions bool   `json:"messenger_extensions,omitempty"`
-	FallbackURL         string `json:"fallback_url,omitempty"`
-	WebviewShareButton  string `json:"webview_share_button,omitempty"`
+	Coordinates *Coordinates `json:"coordinates,omitempty"`
 }
 
 // Coordinates is a pair of latitude and longitude.

response.go

@@ -87,10 +87,9 @@ func checkFacebookError(r io.Reader) error {
 	var err error
 
 	qr := QueryResponse{}
-	decoder := json.NewDecoder(r)
-	err = decoder.Decode(&qr)
+	err = json.NewDecoder(r).Decode(&qr)
 	if err != nil {
-		return NewUnmarshalError(err).WithReader(decoder.Buffered())
+		return xerrors.Errorf("json unmarshal error: %w", err)
 	}
 	if qr.Error != nil {
 		return xerrors.Errorf("facebook error: %w", qr.Error)
@@ -101,9 +100,9 @@ func checkFacebookError(r io.Reader) error {
 
 func getFacebookQueryResponse(r io.Reader) (QueryResponse, error) {
 	qr := QueryResponse{}
-	decoder := json.NewDecoder(r)
-	if err := decoder.Decode(&qr); err != nil {
-		return qr, NewUnmarshalError(err).WithReader(decoder.Buffered())
+	err := json.NewDecoder(r).Decode(&qr)
+	if err != nil {
+		return qr, xerrors.Errorf("json unmarshal error: %w", err)
 	}
 	if qr.Error != nil {
 		return qr, xerrors.Errorf("facebook error: %w", qr.Error)
@@ -182,7 +181,7 @@ func (r *Response) Image(im image.Image) (QueryResponse, error) {
 		return qr, err
 	}
 
-	return r.AttachmentData(ImageAttachment, "meme.jpg", "image/jpeg", imageBytes)
+	return r.AttachmentData(ImageAttachment, "meme.jpg", imageBytes)
 }
 
 // Attachment sends an image, sound, video or a regular file to a chat.
@@ -228,14 +227,15 @@ func createFormFile(filename string, w *multipart.Writer, contentType string) (i
 }
 
 // AttachmentData sends an image, sound, video or a regular file to a chat via an io.Reader.
-func (r *Response) AttachmentData(
-	dataType AttachmentType, filename string, contentType string, filedata io.Reader) (QueryResponse, error) {
+func (r *Response) AttachmentData(dataType AttachmentType, filename string, filedata io.Reader) (QueryResponse, error) {
 	var qr QueryResponse
 
 	filedataBytes, err := ioutil.ReadAll(filedata)
 	if err != nil {
 		return qr, err
 	}
+	contentType := http.DetectContentType(filedataBytes[:512])
+	fmt.Println("Content-type detected:", contentType)
 
 	var body bytes.Buffer
 	multipartWriter := multipart.NewWriter(&body)
@@ -351,8 +351,8 @@ func (r *Response) ListTemplate(elements *[]StructuredMessageElement, messagingT
 	return r.DispatchMessage(&m)
 }
 
-// SenderAction sends an info about sender action.
-func (r *Response) SenderAction(action SenderAction) (QueryResponse, error) {
+// SenderAction sends a info about sender action.
+func (r *Response) SenderAction(action string) (QueryResponse, error) {
 	m := SendSenderAction{
 		Recipient:    r.to,
 		SenderAction: action,
@@ -360,21 +360,6 @@ func (r *Response) SenderAction(action SenderAction) (QueryResponse, error) {
 	return r.DispatchMessage(&m)
 }
 
-// InstagramReaction sends an info about Instagram reaction.
-func (r *Response) InstagramReaction(mid string, action ReactionAction, reaction ...string) (QueryResponse, error) {
-	m := SendInstagramReaction{
-		Recipient:    r.to,
-		SenderAction: action,
-		Payload: SenderInstagramReactionPayload{
-			MessageID: mid,
-		},
-	}
-	if len(reaction) > 0 {
-		m.Payload.Reaction = reaction[0]
-	}
-	return r.DispatchMessage(&m)
-}
-
 // DispatchMessage posts the message to messenger, return the error if there's any.
 func (r *Response) DispatchMessage(m interface{}) (QueryResponse, error) {
 	var res QueryResponse
@@ -561,29 +546,6 @@ type StructuredMessageButton struct {
 
 // SendSenderAction is the information about sender action.
 type SendSenderAction struct {
-	Recipient    Recipient    `json:"recipient"`
-	SenderAction SenderAction `json:"sender_action"`
-}
-
-// ReactionAction contains info about reaction action type.
-type ReactionAction string
-
-const (
-	// ReactionActionReact is used when user added a reaction.
-	ReactionActionReact ReactionAction = "react"
-	// ReactionActionUnReact is used when user removed a reaction.
-	ReactionActionUnReact ReactionAction = "unreact"
-)
-
-// SendInstagramReaction is the information about sender action.
-type SendInstagramReaction struct {
-	Recipient    Recipient                      `json:"recipient"`
-	SenderAction ReactionAction                 `json:"sender_action"`
-	Payload      SenderInstagramReactionPayload `json:"payload"`
-}
-
-// SenderInstagramReactionPayload contains target message ID and reaction name.
-type SenderInstagramReactionPayload struct {
-	MessageID string `json:"message_id"`
-	Reaction  string `json:"reaction"`
+	Recipient    Recipient `json:"recipient"`
+	SenderAction string    `json:"sender_action"`
 }

response_test.go

@@ -1,9 +1,7 @@
 package messenger
 
 import (
-	"bytes"
 	"encoding/json"
-	"errors"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -17,17 +15,3 @@ func Test_MarshalStructuredMessageElement(t *testing.T) {
 	require.NoError(t, err)
 	assert.JSONEq(t, string(data), `{"image_url":"", "subtitle":"", "title": "Title"}`)
 }
-
-func TestResponse_checkFacebookError_UnmarshalError(t *testing.T) {
-	r := bytes.NewReader([]byte("test error text"))
-	err := checkFacebookError(r)
-	assert.True(t, errors.Is(err, ErrUnmarshal))
-	assert.Contains(t, err.Error(), "test error text")
-}
-
-func TestResponse_getFacebookQueryResponse_UnmarshalError(t *testing.T) {
-	r := bytes.NewReader([]byte("test error text"))
-	_, err := getFacebookQueryResponse(r)
-	assert.True(t, errors.Is(err, ErrUnmarshal))
-	assert.Contains(t, err.Error(), "test error text")
-}

unmarshal_error.go

@@ -1,47 +0,0 @@
-package messenger
-
-import (
-	"errors"
-	"fmt"
-	"io"
-	"io/ioutil"
-)
-
-var ErrUnmarshal = errors.New("unmarshal error")
-
-type UnmarshalError struct {
-	Content   []byte
-	ErrorText string
-	Err       error
-}
-
-func (u *UnmarshalError) Error() string {
-	return fmt.Sprintf("can not unmarshal content: %s; error: %s", string(u.Content), u.ErrorText)
-}
-
-func (u *UnmarshalError) Unwrap() error {
-	return u.Err
-}
-
-func NewUnmarshalError(err error) *UnmarshalError {
-	return &UnmarshalError{
-		Err:       ErrUnmarshal,
-		ErrorText: err.Error(),
-	}
-}
-
-func (u *UnmarshalError) WithReader(reader io.Reader) *UnmarshalError {
-	content, _ := ioutil.ReadAll(reader)
-	u.Content = content
-	return u
-}
-
-func (u *UnmarshalError) WithContent(content []byte) *UnmarshalError {
-	u.Content = content
-	return u
-}
-
-func (u *UnmarshalError) WithErr(err error) *UnmarshalError {
-	u.Err = err
-	return u
-}

unmarshal_error_test.go

@@ -1,57 +0,0 @@
-package messenger
-
-import (
-	"bytes"
-	"errors"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-)
-
-func TestNewUnmarshalError(t *testing.T) {
-	err := errors.New("some error")
-	unmarshalError := NewUnmarshalError(err)
-	assert.True(t, errors.Is(unmarshalError, ErrUnmarshal))
-}
-
-func TestUnmarshalError_Error(t *testing.T) {
-	err := errors.New("some error")
-	content := []byte("test content")
-	actual := NewUnmarshalError(err).WithContent(content).Error()
-	expected := "can not unmarshal content: test content; error: some error"
-	assert.Equal(t, expected, actual)
-}
-
-func TestUnmarshalError_Unwrap(t *testing.T) {
-	err := errors.New("some error")
-	actual := NewUnmarshalError(err).Unwrap()
-	expected := ErrUnmarshal
-	assert.Equal(t, expected, actual)
-}
-
-func TestUnmarshalError_WithContent(t *testing.T) {
-	err := errors.New("some error")
-	content := []byte("test content")
-
-	actual := NewUnmarshalError(err).WithContent(content)
-	expected := &UnmarshalError{Err: ErrUnmarshal, Content: content, ErrorText: err.Error()}
-	assert.Equal(t, expected, actual)
-}
-
-func TestUnmarshalError_WithReader(t *testing.T) {
-	err := errors.New("some error")
-	content := []byte("test content")
-	reader := bytes.NewReader(content)
-
-	actual := NewUnmarshalError(err).WithReader(reader)
-	expected := &UnmarshalError{Err: ErrUnmarshal, Content: content, ErrorText: err.Error()}
-	assert.Equal(t, expected, actual)
-}
-
-func TestUnmarshalError_WithErr(t *testing.T) {
-	someError := errors.New("some error")
-	otherError := errors.New("other error")
-	actual := NewUnmarshalError(someError).WithErr(otherError)
-	expected := &UnmarshalError{Err: otherError, ErrorText: someError.Error()}
-	assert.Equal(t, expected, actual)
-}