Minor formatting fixes

init.go

@@ -186,7 +186,7 @@ func initImporter(app *App) *subimporter.Importer {
 }
 
 // initMessengers initializes various messaging backends.
-func initMessengers(r *manager.Manager) messenger.Messenger {
+func initMessengers(m *manager.Manager) messenger.Messenger {
 	// Load SMTP configurations for the default e-mail Messenger.
 	var (
 		mapKeys = ko.MapKeys("smtp")
@@ -215,7 +215,7 @@ func initMessengers(r *manager.Manager) messenger.Messenger {
 	if err != nil {
 		lo.Fatalf("error loading e-mail messenger: %v", err)
 	}
-	if err := r.AddMessenger(msgr); err != nil {
+	if err := m.AddMessenger(msgr); err != nil {
 		lo.Printf("error registering messenger %s", err)
 	}
 

internal/manager/manager.go

@@ -122,7 +122,6 @@ func (m *Manager) AddMessenger(msg messenger.Messenger) error {
 		return fmt.Errorf("messenger '%s' is already loaded", id)
 	}
 	m.messengers[id] = msg
-
 	return nil
 }
 
@@ -132,7 +131,6 @@ func (m *Manager) GetMessengerNames() []string {
 	for n := range m.messengers {
 		names = append(names, n)
 	}
-
 	return names
 }
 
@@ -196,9 +194,7 @@ func (m *Manager) Run(tick time.Duration) {
 					delete(m.msgErrorCounts, e.camp.ID)
 
 					// Notify admins.
-					m.sendNotif(e.camp,
-						models.CampaignStatusPaused,
-						"Too many errors")
+					m.sendNotif(e.camp, models.CampaignStatusPaused, "Too many errors")
 				}
 			}
 		}
@@ -256,6 +252,34 @@ func (m *Manager) SpawnWorkers() {
 	}
 }
 
+// TemplateFuncs returns the template functions to be applied into
+// compiled campaign templates.
+func (m *Manager) TemplateFuncs(c *models.Campaign) template.FuncMap {
+	return template.FuncMap{
+		"TrackLink": func(url string, msg *Message) string {
+			return m.trackLink(url, msg.Campaign.UUID, msg.Subscriber.UUID)
+		},
+		"TrackView": func(msg *Message) template.HTML {
+			return template.HTML(fmt.Sprintf(`<img src="%s" alt="" />`,
+				fmt.Sprintf(m.cfg.ViewTrackURL, msg.Campaign.UUID, msg.Subscriber.UUID)))
+		},
+		"UnsubscribeURL": func(msg *Message) string {
+			return msg.unsubURL
+		},
+		"OptinURL": func(msg *Message) string {
+			// Add list IDs.
+			// TODO: Show private lists list on optin e-mail
+			return fmt.Sprintf(m.cfg.OptinURL, msg.Subscriber.UUID, "")
+		},
+		"Date": func(layout string) string {
+			if layout == "" {
+				layout = time.ANSIC
+			}
+			return time.Now().Format(layout)
+		},
+	}
+}
+
 // addCampaign adds a campaign to the process queue.
 func (m *Manager) addCampaign(c *models.Campaign) error {
 	// Validate messenger.
@@ -281,7 +305,6 @@ func (m *Manager) getPendingCampaignIDs() []int64 {
 	for _, c := range m.camps {
 		ids = append(ids, int64(c.ID))
 	}
-
 	return ids
 }
 
@@ -358,17 +381,6 @@ func (m *Manager) exhaustCampaign(c *models.Campaign, status string) (*models.Ca
 	return cm, nil
 }
 
-// Render takes a Message, executes its pre-compiled Campaign.Tpl
-// and applies the resultant bytes to Message.body to be used in messages.
-func (m *Message) Render() error {
-	out := bytes.Buffer{}
-	if err := m.Campaign.Tpl.ExecuteTemplate(&out, models.BaseTpl, m); err != nil {
-		return err
-	}
-	m.Body = out.Bytes()
-	return nil
-}
-
 // trackLink register a URL and return its UUID to be used in message templates
 // for tracking links.
 func (m *Manager) trackLink(url, campUUID, subUUID string) string {
@@ -412,30 +424,13 @@ func (m *Manager) sendNotif(c *models.Campaign, status, reason string) error {
 	return m.notifCB(subject, data)
 }
 
-// TemplateFuncs returns the template functions to be applied into
-// compiled campaign templates.
-func (m *Manager) TemplateFuncs(c *models.Campaign) template.FuncMap {
-	return template.FuncMap{
-		"TrackLink": func(url string, msg *Message) string {
-			return m.trackLink(url, msg.Campaign.UUID, msg.Subscriber.UUID)
-		},
-		"TrackView": func(msg *Message) template.HTML {
-			return template.HTML(fmt.Sprintf(`<img src="%s" alt="" />`,
-				fmt.Sprintf(m.cfg.ViewTrackURL, msg.Campaign.UUID, msg.Subscriber.UUID)))
-		},
-		"UnsubscribeURL": func(msg *Message) string {
-			return msg.unsubURL
-		},
-		"OptinURL": func(msg *Message) string {
-			// Add list IDs.
-			// TODO: Show private lists list on optin e-mail
-			return fmt.Sprintf(m.cfg.OptinURL, msg.Subscriber.UUID, "")
-		},
-		"Date": func(layout string) string {
-			if layout == "" {
-				layout = time.ANSIC
-			}
-			return time.Now().Format(layout)
-		},
+// Render takes a Message, executes its pre-compiled Campaign.Tpl
+// and applies the resultant bytes to Message.body to be used in messages.
+func (m *Message) Render() error {
+	out := bytes.Buffer{}
+	if err := m.Campaign.Tpl.ExecuteTemplate(&out, models.BaseTpl, m); err != nil {
+		return err
 	}
+	m.Body = out.Bytes()
+	return nil
 }

internal/subimporter/importer.go

@@ -21,11 +21,10 @@ import (
 	"strings"
 	"sync"
 
-	"github.com/gofrs/uuid"
-	"github.com/lib/pq"
-
 	"github.com/asaskevich/govalidator"
+	"github.com/gofrs/uuid"
 	"github.com/knadh/listmonk/models"
+	"github.com/lib/pq"
 )
 
 const (
@@ -34,7 +33,10 @@ const (
 
 	// commitBatchSize is the number of inserts to commit in a single SQL transaction.
 	commitBatchSize = 10000
+)
 
+// Various import statuses.
+const (
 	StatusNone      = "none"
 	StatusImporting = "importing"
 	StatusStopping  = "stopping"
@@ -113,7 +115,6 @@ func New(upsert *sql.Stmt, blacklist *sql.Stmt, updateListDate *sql.Stmt,
 		notifCB:        notifCB,
 		status:         Status{Status: StatusNone, logBuf: bytes.NewBuffer(nil)},
 	}
-
 	return &im
 }
 
@@ -162,7 +163,6 @@ func (im *Importer) GetLogs() []byte {
 	if im.status.logBuf == nil {
 		return []byte{}
 	}
-
 	return im.status.logBuf.Bytes()
 }
 
@@ -213,7 +213,6 @@ func (im *Importer) sendNotif(status string) error {
 			strings.Title(status),
 			s.Name)
 	)
-
 	return im.notifCB(subject, out)
 }
 
@@ -526,7 +525,6 @@ func (s *Session) LoadCSV(srcPath string, delim rune) error {
 
 	close(s.subQueue)
 	failed = false
-
 	return nil
 }
 
@@ -558,7 +556,6 @@ func (s *Session) mapCSVHeaders(csvHdrs []string, knownHdrs map[string]bool) map
 			s.log.Printf("ignoring unknown header '%s'", h)
 			continue
 		}
-
 		hdrKeys[h] = i
 	}
 
@@ -601,5 +598,4 @@ func countLines(r io.Reader) (int, error) {
 			return count, err
 		}
 	}
-
 }

media.go

@@ -1,10 +1,13 @@
 package main
 
 import (
+	"bytes"
 	"fmt"
+	"mime/multipart"
 	"net/http"
 	"strconv"
 
+	"github.com/disintegration/imaging"
 	"github.com/gofrs/uuid"
 	"github.com/knadh/listmonk/internal/media"
 	"github.com/labstack/echo"
@@ -146,3 +149,28 @@ func handleDeleteMedia(c echo.Context) error {
 	app.media.Delete(thumbPrefix + m.Filename)
 	return c.JSON(http.StatusOK, okResp{true})
 }
+
+// createThumbnail reads the file object and returns a smaller image
+func createThumbnail(file *multipart.FileHeader) (*bytes.Reader, error) {
+	src, err := file.Open()
+	if err != nil {
+		return nil, err
+	}
+	defer src.Close()
+
+	img, err := imaging.Decode(src)
+	if err != nil {
+		return nil, echo.NewHTTPError(http.StatusInternalServerError,
+			fmt.Sprintf("Error decoding image: %v", err))
+	}
+
+	// Encode the image into a byte slice as PNG.
+	var (
+		thumb = imaging.Resize(img, thumbnailSize, 0, imaging.Lanczos)
+		out   bytes.Buffer
+	)
+	if err := imaging.Encode(&out, thumb, imaging.PNG); err != nil {
+		return nil, err
+	}
+	return bytes.NewReader(out.Bytes()), nil
+}

utils.go

@@ -4,15 +4,10 @@ import (
 	"bytes"
 	"crypto/rand"
 	"fmt"
-	"log"
-	"mime/multipart"
-	"net/http"
 	"regexp"
 	"strconv"
 	"strings"
 
-	"github.com/disintegration/imaging"
-	"github.com/labstack/echo"
 	"github.com/lib/pq"
 )
 
@@ -52,28 +47,6 @@ func generateFileName(fName string) string {
 	return name
 }
 
-// createThumbnail reads the file object and returns a smaller image
-func createThumbnail(file *multipart.FileHeader) (*bytes.Reader, error) {
-	src, err := file.Open()
-	if err != nil {
-		return nil, err
-	}
-	defer src.Close()
-	img, err := imaging.Decode(src)
-	if err != nil {
-		return nil, echo.NewHTTPError(http.StatusInternalServerError,
-			fmt.Sprintf("Error decoding image: %v", err))
-	}
-	t := imaging.Resize(img, thumbnailSize, 0, imaging.Lanczos)
-	// Encode the image into a byte slice as PNG.
-	var buf bytes.Buffer
-	err = imaging.Encode(&buf, t, imaging.PNG)
-	if err != nil {
-		log.Fatal(err)
-	}
-	return bytes.NewReader(buf.Bytes()), nil
-}
-
 // Given an error, pqErrMsg will try to return pq error details
 // if it's a pq error.
 func pqErrMsg(err error) string {
@@ -82,7 +55,6 @@ func pqErrMsg(err error) string {
 			return fmt.Sprintf("%s. %s", err, err.Detail)
 		}
 	}
-
 	return err.Error()
 }
 
@@ -103,7 +75,6 @@ func normalizeTags(tags []string) []string {
 			out = append(out, string(rep))
 		}
 	}
-
 	return out
 }
 
@@ -118,7 +89,6 @@ func makeMsgTpl(pageTitle, heading, msg string) msgTpl {
 	err.Title = pageTitle
 	err.MessageTitle = heading
 	err.Message = msg
-
 	return err
 }
 
@@ -127,7 +97,6 @@ func makeMsgTpl(pageTitle, heading, msg string) msgTpl {
 // resultant values.
 func parseStringIDs(s []string) ([]int64, error) {
 	vals := make([]int64, 0, len(s))
-
 	for _, v := range s {
 		i, err := strconv.ParseInt(v, 10, 64)
 		if err != nil {
@@ -147,12 +116,11 @@ func parseStringIDs(s []string) ([]int64, error) {
 // generateRandomString generates a cryptographically random, alphanumeric string of length n.
 func generateRandomString(n int) (string, error) {
 	const dictionary = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
-
 	var bytes = make([]byte, n)
+
 	if _, err := rand.Read(bytes); err != nil {
 		return "", err
 	}
-
 	for k, v := range bytes {
 		bytes[k] = dictionary[v%byte(len(dictionary))]
 	}