The Great Linting Fixes, Drone configuration fix (again) and flatfile changes.

Great linting fixes has been applied, thanks to golangci-lint for
extensive reporting.

Fixed Drone configuration to use array for when-branch statement in
Docker plugin.

Flatfile storage from now will write files with 0600 permission for
greater security.

.drone.yml

@@ -21,7 +21,7 @@ steps:
   - name: docker
     image: plugins/docker
     when:
-      branch: master
+      branch: ["master"]
     settings:
       username:
         from_secret: dockerhub_user

cmd/fastpastebin/fastpastebin.go

@@ -39,29 +39,29 @@ import (
 )
 
 func main() {
-	c := context.New()
-	c.Initialize()
+	appCtx := context.New()
+	appCtx.Initialize()
 
-	c.Logger.Info().Msg("Starting Fast Pastebin...")
+	appCtx.Logger.Info().Msg("Starting Fast Pastebin...")
 
 	// Here goes initial initialization for packages that want CLI flags
 	// to be added.
 
 	// Parse flags.
-	c.Flagger.Parse()
+	appCtx.Flagger.Parse()
 
 	// Continue loading.
-	c.LoadConfiguration()
-	c.InitializePost()
-	database.New(c)
-	c.Database.Initialize()
-	templater.Initialize(c)
+	appCtx.LoadConfiguration()
+	appCtx.InitializePost()
+	database.New(appCtx)
+	appCtx.Database.Initialize()
+	templater.Initialize(appCtx)
 
-	captcha.New(c)
+	captcha.New(appCtx)
 
-	dbnotavailable.New(c)
-	indexpage.New(c)
-	pastes.New(c)
+	dbnotavailable.New(appCtx)
+	indexpage.New(appCtx)
+	pastes.New(appCtx)
 
 	// CTRL+C handler.
 	signalHandler := make(chan os.Signal, 1)
@@ -71,7 +71,7 @@ func main() {
 
 	go func() {
 		<-signalHandler
-		c.Shutdown()
+		appCtx.Shutdown()
 		shutdownDone <- true
 	}()
 

domains/indexpage/indexpage.go

@@ -35,12 +35,12 @@ import (
 )
 
 // Index of this site.
-func indexGet(ec echo.Context) error {
+func indexGet(ectx echo.Context) error {
 	// We should check if database connection available.
 	dbConn := c.Database.GetDatabaseConnection()
 	if c.Config.Database.Type != flatfiles.FlatFileDialect && dbConn == nil {
 		// nolint:wrapcheck
-		return ec.Redirect(http.StatusFound, "/database_not_available")
+		return ectx.Redirect(http.StatusFound, "/database_not_available")
 	}
 
 	// Generate list of available languages to highlight.
@@ -54,8 +54,8 @@ func indexGet(ec echo.Context) error {
 	// Captcha.
 	captchaString := captcha.NewCaptcha()
 
-	htmlData := templater.GetTemplate(ec, "index.html", map[string]string{"lexers": availableLexersSelectOpts, "captchaString": captchaString})
+	htmlData := templater.GetTemplate(ectx, "index.html", map[string]string{"lexers": availableLexersSelectOpts, "captchaString": captchaString})
 
 	// nolint:wrapcheck
-	return ec.HTML(http.StatusOK, htmlData)
+	return ectx.HTML(http.StatusOK, htmlData)
 }

domains/pastes/paste_get.go

@@ -72,8 +72,8 @@ func pasteGetData(pasteID int, timestamp int64, cookieValue string) (*structs.Pa
 
 // GET for "/paste/PASTE_ID" and "/paste/PASTE_ID/TIMESTAMP" (private pastes).
 // Web interface version.
-func pasteGETWebInterface(ec echo.Context) error {
-	pasteIDRaw := ec.Param("id")
+func pasteGETWebInterface(ectx echo.Context) error {
+	pasteIDRaw := ectx.Param("id")
 	// We already get numbers from string, so we will not check strconv.Atoi()
 	// error.
 	pasteID, _ := strconv.Atoi(regexInts.FindAllString(pasteIDRaw, 1)[0])
@@ -85,16 +85,16 @@ func pasteGETWebInterface(ec echo.Context) error {
 	// will show 404 Not Found error and spam about that in logs.
 	var timestamp int64
 
-	tsProvidedStr := ec.Param("timestamp")
+	tsProvidedStr := ectx.Param("timestamp")
 	if tsProvidedStr != "" {
 		tsProvided, err := strconv.ParseInt(tsProvidedStr, 10, 64)
 		if err != nil {
 			c.Logger.Error().Err(err).Int("paste ID", pasteID).Int64("provided timestamp", tsProvided).Msg("Invalid timestamp provided for getting private paste")
 
-			errtpl := templater.GetErrorTemplate(ec, "Paste #"+pasteIDStr+" not found")
+			errtpl := templater.GetErrorTemplate(ectx, "Paste #"+pasteIDStr+" not found")
 
 			// nolint:wrapcheck
-			return ec.HTML(http.StatusBadRequest, errtpl)
+			return ectx.HTML(http.StatusBadRequest, errtpl)
 		}
 
 		timestamp = tsProvided
@@ -104,7 +104,7 @@ func pasteGETWebInterface(ec echo.Context) error {
 	// for private pastes.
 	var cookieValue string
 
-	cookie, err1 := ec.Cookie("PASTE-" + pasteIDStr)
+	cookie, err1 := ectx.Cookie("PASTE-" + pasteIDStr)
 	if err1 == nil {
 		cookieValue = cookie.Value
 	}
@@ -113,10 +113,10 @@ func pasteGETWebInterface(ec echo.Context) error {
 
 	// For these cases we should return 404 Not Found page.
 	if err == pasteExpired || err == pasteNotFound || err == pasteTimestampInvalid {
-		errtpl := templater.GetErrorTemplate(ec, "Paste #"+pasteIDRaw+" not found")
+		errtpl := templater.GetErrorTemplate(ectx, "Paste #"+pasteIDRaw+" not found")
 
 		// nolint:wrapcheck
-		return ec.HTML(http.StatusNotFound, errtpl)
+		return ectx.HTML(http.StatusNotFound, errtpl)
 	}
 
 	// If passed cookie value was invalid - go to paste authorization
@@ -125,7 +125,7 @@ func pasteGETWebInterface(ec echo.Context) error {
 		c.Logger.Info().Int("paste ID", pasteID).Msg("Invalid cookie, redirecting to auth page")
 
 		// nolint:wrapcheck
-		return ec.Redirect(http.StatusMovedPermanently, "/paste/"+pasteIDStr+"/"+ec.Param("timestamp")+"/verify")
+		return ectx.Redirect(http.StatusMovedPermanently, "/paste/"+pasteIDStr+"/"+ectx.Param("timestamp")+"/verify")
 	}
 
 	// Format paste data map.
@@ -180,16 +180,16 @@ func pasteGETWebInterface(ec echo.Context) error {
 	pasteData["pastedata"] = buf.String()
 
 	// Get template and format it.
-	pasteHTML := templater.GetTemplate(ec, "paste.html", pasteData)
+	pasteHTML := templater.GetTemplate(ectx, "paste.html", pasteData)
 
 	// nolint:wrapcheck
-	return ec.HTML(http.StatusOK, pasteHTML)
+	return ectx.HTML(http.StatusOK, pasteHTML)
 }
 
 // GET for "/paste/PASTE_ID/TIMESTAMP/verify" - a password verify page.
-func pastePasswordedVerifyGet(ec echo.Context) error {
-	pasteIDRaw := ec.Param("id")
-	timestampRaw := ec.Param("timestamp")
+func pastePasswordedVerifyGet(ectx echo.Context) error {
+	pasteIDRaw := ectx.Param("id")
+	timestampRaw := ectx.Param("timestamp")
 	// We already get numbers from string, so we will not check strconv.Atoi()
 	// error.
 	pasteID, _ := strconv.Atoi(regexInts.FindAllString(pasteIDRaw, 1)[0])
@@ -199,14 +199,14 @@ func pastePasswordedVerifyGet(ec echo.Context) error {
 	if err1 != nil {
 		c.Logger.Error().Err(err1).Int("paste ID", pasteID).Msg("Failed to get paste data")
 
-		errtpl := templater.GetErrorTemplate(ec, "Paste #"+pasteIDRaw+" not found")
+		errtpl := templater.GetErrorTemplate(ectx, "Paste #"+pasteIDRaw+" not found")
 
 		// nolint:wrapcheck
-		return ec.HTML(http.StatusBadRequest, errtpl)
+		return ectx.HTML(http.StatusBadRequest, errtpl)
 	}
 
 	// Check for auth cookie. If present - redirect to paste.
-	cookie, err := ec.Cookie("PASTE-" + strconv.Itoa(pasteID))
+	cookie, err := ectx.Cookie("PASTE-" + strconv.Itoa(pasteID))
 	if err == nil {
 		// No cookie, redirect to auth page.
 		c.Logger.Debug().Msg("Paste cookie found, checking it...")
@@ -218,7 +218,7 @@ func pastePasswordedVerifyGet(ec echo.Context) error {
 			c.Logger.Info().Msg("Valid cookie, redirecting to paste page...")
 
 			// nolint:wrapcheck
-			return ec.Redirect(http.StatusMovedPermanently, "/paste/"+pasteIDRaw+"/"+ec.Param("timestamp"))
+			return ectx.Redirect(http.StatusMovedPermanently, "/paste/"+pasteIDRaw+"/"+ectx.Param("timestamp"))
 		}
 
 		c.Logger.Debug().Msg("Invalid cookie, showing auth page")
@@ -229,24 +229,24 @@ func pastePasswordedVerifyGet(ec echo.Context) error {
 	htmlData["pasteID"] = strconv.Itoa(pasteID)
 	htmlData["pasteTimestamp"] = timestampRaw
 
-	verifyHTML := templater.GetTemplate(ec, "passworded_paste_verify.html", htmlData)
+	verifyHTML := templater.GetTemplate(ectx, "passworded_paste_verify.html", htmlData)
 
 	// nolint:wrapcheck
-	return ec.HTML(http.StatusOK, verifyHTML)
+	return ectx.HTML(http.StatusOK, verifyHTML)
 }
 
 // POST for "/paste/PASTE_ID/TIMESTAMP/verify" - a password verify page.
-func pastePasswordedVerifyPost(ec echo.Context) error {
+func pastePasswordedVerifyPost(ectx echo.Context) error {
 	// We should check if database connection available.
 	dbConn := c.Database.GetDatabaseConnection()
 
 	if c.Config.Database.Type != flatfiles.FlatFileDialect && dbConn == nil {
 		// nolint:wrapcheck
-		return ec.Redirect(http.StatusFound, "/database_not_available")
+		return ectx.Redirect(http.StatusFound, "/database_not_available")
 	}
 
-	pasteIDRaw := ec.Param("id")
-	timestampRaw := ec.Param("timestamp")
+	pasteIDRaw := ectx.Param("id")
+	timestampRaw := ectx.Param("timestamp")
 	// We already get numbers from string, so we will not check strconv.Atoi()
 	// error.
 	pasteID, _ := strconv.Atoi(regexInts.FindAllString(pasteIDRaw, 1)[0])
@@ -256,20 +256,20 @@ func pastePasswordedVerifyPost(ec echo.Context) error {
 	paste, err1 := c.Database.GetPaste(pasteID)
 	if err1 != nil {
 		c.Logger.Error().Err(err1).Int("paste ID", pasteID).Msg("Failed to get paste")
-		errtpl := templater.GetErrorTemplate(ec, "Paste #"+strconv.Itoa(pasteID)+" not found")
+		errtpl := templater.GetErrorTemplate(ectx, "Paste #"+strconv.Itoa(pasteID)+" not found")
 
 		// nolint:wrapcheck
-		return ec.HTML(http.StatusBadRequest, errtpl)
+		return ectx.HTML(http.StatusBadRequest, errtpl)
 	}
 
-	params, err2 := ec.FormParams()
+	params, err2 := ectx.FormParams()
 	if err2 != nil {
 		c.Logger.Debug().Msg("No form parameters passed")
 
-		errtpl := templater.GetErrorTemplate(ec, "Paste #"+strconv.Itoa(pasteID)+" not found")
+		errtpl := templater.GetErrorTemplate(ectx, "Paste #"+strconv.Itoa(pasteID)+" not found")
 
 		// nolint:wrapcheck
-		return ec.HTML(http.StatusBadRequest, errtpl)
+		return ectx.HTML(http.StatusBadRequest, errtpl)
 	}
 
 	if paste.VerifyPassword(params["paste-password"][0]) {
@@ -279,29 +279,29 @@ func pastePasswordedVerifyPost(ec echo.Context) error {
 		cookie.Name = "PASTE-" + strconv.Itoa(pasteID)
 		cookie.Value = paste.GenerateCryptedCookieValue()
 		cookie.Expires = time.Now().Add(24 * time.Hour)
-		ec.SetCookie(cookie)
+		ectx.SetCookie(cookie)
 
 		// nolint:wrapcheck
-		return ec.Redirect(http.StatusFound, "/paste/"+strconv.Itoa(pasteID)+"/"+timestampRaw)
+		return ectx.Redirect(http.StatusFound, "/paste/"+strconv.Itoa(pasteID)+"/"+timestampRaw)
 	}
 
-	errtpl := templater.GetErrorTemplate(ec, "Invalid password. Please, try again.")
+	errtpl := templater.GetErrorTemplate(ectx, "Invalid password. Please, try again.")
 
 	// nolint:wrapcheck
-	return ec.HTML(http.StatusBadRequest, errtpl)
+	return ectx.HTML(http.StatusBadRequest, errtpl)
 }
 
 // GET for "/pastes/:id/raw", raw paste output.
 // Web interface version.
-func pasteRawGETWebInterface(ec echo.Context) error {
+func pasteRawGETWebInterface(ectx echo.Context) error {
 	// We should check if database connection available.
 	dbConn := c.Database.GetDatabaseConnection()
 	if c.Config.Database.Type != flatfiles.FlatFileDialect && dbConn == nil {
 		// nolint:wrapcheck
-		return ec.Redirect(http.StatusFound, "/database_not_available/raw")
+		return ectx.Redirect(http.StatusFound, "/database_not_available/raw")
 	}
 
-	pasteIDRaw := ec.Param("id")
+	pasteIDRaw := ectx.Param("id")
 	// We already get numbers from string, so we will not check strconv.Atoi()
 	// error.
 	pasteID, _ := strconv.Atoi(regexInts.FindAllString(pasteIDRaw, 1)[0])
@@ -313,26 +313,26 @@ func pasteRawGETWebInterface(ec echo.Context) error {
 		c.Logger.Error().Err(err1).Int("paste ID", pasteID).Msg("Failed to get paste from database")
 
 		// nolint:wrapcheck
-		return ec.HTML(http.StatusBadRequest, "Paste #"+pasteIDRaw+" does not exist.")
+		return ectx.HTML(http.StatusBadRequest, "Paste #"+pasteIDRaw+" does not exist.")
 	}
 
 	if paste.IsExpired() {
 		c.Logger.Error().Int("paste ID", pasteID).Msg("Paste is expired")
 
 		// nolint:wrapcheck
-		return ec.HTML(http.StatusBadRequest, "Paste #"+pasteIDRaw+" does not exist.")
+		return ectx.HTML(http.StatusBadRequest, "Paste #"+pasteIDRaw+" does not exist.")
 	}
 
 	// Check if we have a private paste and it's parameters are correct.
 	if paste.Private {
-		tsProvidedStr := ec.Param("timestamp")
+		tsProvidedStr := ectx.Param("timestamp")
 
 		tsProvided, err2 := strconv.ParseInt(tsProvidedStr, 10, 64)
 		if err2 != nil {
 			c.Logger.Error().Err(err2).Int("paste ID", pasteID).Str("provided timestamp", tsProvidedStr).Msg("Invalid timestamp provided for getting private paste")
 
 			// nolint:wrapcheck
-			return ec.String(http.StatusBadRequest, "Paste #"+pasteIDRaw+" not found")
+			return ectx.String(http.StatusBadRequest, "Paste #"+pasteIDRaw+" not found")
 		}
 
 		pasteTS := paste.CreatedAt.Unix()
@@ -340,7 +340,7 @@ func pasteRawGETWebInterface(ec echo.Context) error {
 			c.Logger.Error().Int("paste ID", pasteID).Int64("provided timestamp", tsProvided).Int64("paste timestamp", pasteTS).Msg("Incorrect timestamp provided for private paste")
 
 			// nolint:wrapcheck
-			return ec.String(http.StatusBadRequest, "Paste #"+pasteIDRaw+" not found")
+			return ectx.String(http.StatusBadRequest, "Paste #"+pasteIDRaw+" not found")
 		}
 	}
 
@@ -349,9 +349,9 @@ func pasteRawGETWebInterface(ec echo.Context) error {
 	// Return error for now.
 	if paste.Password != "" {
 		c.Logger.Error().Int("paste ID", pasteID).Msg("Cannot render paste as raw: passworded paste. Patches welcome!")
-		return ec.String(http.StatusBadRequest, "Paste #"+pasteIDRaw+" not found")
+		return ectx.String(http.StatusBadRequest, "Paste #"+pasteIDRaw+" not found")
 	}
 
 	// nolint:wrapcheck
-	return ec.String(http.StatusOK, paste.Data)
+	return ectx.String(http.StatusOK, paste.Data)
 }

domains/pastes/paste_post.go

@@ -20,22 +20,22 @@ const KeepPastesForever = "forever"
 // POST for "/paste/" which will create new paste and redirect to
 // "/pastes/CREATED_PASTE_ID". This handler will do all the job for
 // requests comes from browsers via web interface.
-func pastePOSTWebInterface(ec echo.Context) error {
+func pastePOSTWebInterface(ectx echo.Context) error {
 	// We should check if database connection available.
 	dbConn := c.Database.GetDatabaseConnection()
 	if c.Config.Database.Type != flatfiles.FlatFileDialect && dbConn == nil {
 		// nolint:wrapcheck
-		return ec.Redirect(http.StatusFound, "/database_not_available")
+		return ectx.Redirect(http.StatusFound, "/database_not_available")
 	}
 
-	params, err := ec.FormParams()
+	params, err := ectx.FormParams()
 	if err != nil {
 		c.Logger.Error().Msg("Passed paste form is empty")
 
-		errtpl := templater.GetErrorTemplate(ec, "Cannot create empty paste")
+		errtpl := templater.GetErrorTemplate(ectx, "Cannot create empty paste")
 
 		// nolint:wrapcheck
-		return ec.HTML(http.StatusBadRequest, errtpl)
+		return ectx.HTML(http.StatusBadRequest, errtpl)
 	}
 
 	c.Logger.Debug().Msgf("Received parameters: %+v", params)
@@ -44,29 +44,29 @@ func pastePOSTWebInterface(ec echo.Context) error {
 	if len(params["paste-contents"][0]) == 0 {
 		c.Logger.Debug().Msg("Empty paste submitted, ignoring")
 
-		errtpl := templater.GetErrorTemplate(ec, "Empty pastes aren't allowed.")
+		errtpl := templater.GetErrorTemplate(ectx, "Empty pastes aren't allowed.")
 
 		// nolint:wrapcheck
-		return ec.HTML(http.StatusBadRequest, errtpl)
+		return ectx.HTML(http.StatusBadRequest, errtpl)
 	}
 
 	if !strings.ContainsAny(params["paste-keep-for"][0], "Mmhd") && params["paste-keep-for"][0] != KeepPastesForever {
 		c.Logger.Debug().Str("field value", params["paste-keep-for"][0]).Msg("'Keep paste for' field have invalid value")
 
-		errtpl := templater.GetErrorTemplate(ec, "Invalid 'Paste should be available for' parameter passed. Please do not try to hack us ;).")
+		errtpl := templater.GetErrorTemplate(ectx, "Invalid 'Paste should be available for' parameter passed. Please do not try to hack us ;).")
 
 		// nolint:wrapcheck
-		return ec.HTML(http.StatusBadRequest, errtpl)
+		return ectx.HTML(http.StatusBadRequest, errtpl)
 	}
 
 	// Verify captcha.
 	if !captcha.Verify(params["paste-captcha-id"][0], params["paste-captcha-solution"][0]) {
 		c.Logger.Debug().Str("captcha ID", params["paste-captcha-id"][0]).Str("captcha solution", params["paste-captcha-solution"][0]).Msg("Invalid captcha solution")
 
-		errtpl := templater.GetErrorTemplate(ec, "Invalid captcha solution.")
+		errtpl := templater.GetErrorTemplate(ectx, "Invalid captcha solution.")
 
 		// nolint:wrapcheck
-		return ec.HTML(http.StatusBadRequest, errtpl)
+		return ectx.HTML(http.StatusBadRequest, errtpl)
 	}
 
 	// nolint:exhaustivestruct
@@ -101,10 +101,10 @@ func pastePOSTWebInterface(ec echo.Context) error {
 			} else {
 				c.Logger.Debug().Err(err).Msg("Failed to parse 'Keep for' integer")
 
-				errtpl := templater.GetErrorTemplate(ec, "Invalid 'Paste should be available for' parameter passed. Please do not try to hack us ;).")
+				errtpl := templater.GetErrorTemplate(ectx, "Invalid 'Paste should be available for' parameter passed. Please do not try to hack us ;).")
 
 				// nolint:wrapcheck
-				return ec.HTML(http.StatusBadRequest, errtpl)
+				return ectx.HTML(http.StatusBadRequest, errtpl)
 			}
 		}
 
@@ -138,25 +138,25 @@ func pastePOSTWebInterface(ec echo.Context) error {
 		_ = paste.CreatePassword(pastePassword[0])
 	}
 
-	id, err2 := c.Database.SavePaste(paste)
+	pasteID, err2 := c.Database.SavePaste(paste)
 	if err2 != nil {
 		c.Logger.Error().Err(err2).Msg("Failed to save paste")
 
-		errtpl := templater.GetErrorTemplate(ec, "Failed to save paste. Please, try again later.")
+		errtpl := templater.GetErrorTemplate(ectx, "Failed to save paste. Please, try again later.")
 
 		// nolint:wrapcheck
-		return ec.HTML(http.StatusBadRequest, errtpl)
+		return ectx.HTML(http.StatusBadRequest, errtpl)
 	}
 
-	newPasteIDAsString := strconv.FormatInt(id, 10)
+	newPasteIDAsString := strconv.FormatInt(pasteID, 10)
 	c.Logger.Debug().Msg("Paste saved, URL: /paste/" + newPasteIDAsString)
 
 	// Private pastes have it's timestamp in URL.
 	if paste.Private {
 		// nolint:wrapcheck
-		return ec.Redirect(http.StatusFound, "/paste/"+newPasteIDAsString+"/"+strconv.FormatInt(paste.CreatedAt.Unix(), 10))
+		return ectx.Redirect(http.StatusFound, "/paste/"+newPasteIDAsString+"/"+strconv.FormatInt(paste.CreatedAt.Unix(), 10))
 	}
 
 	// nolint:wrapcheck
-	return ec.Redirect(http.StatusFound, "/paste/"+newPasteIDAsString)
+	return ectx.Redirect(http.StatusFound, "/paste/"+newPasteIDAsString)
 }

domains/pastes/pastes_get.go

@@ -37,15 +37,15 @@ import (
 
 // GET for "/pastes/", a list of publicly available pastes.
 // Web interface version.
-func pastesGET(ec echo.Context) error {
+func pastesGET(ectx echo.Context) error {
 	// We should check if database connection available.
 	dbConn := c.Database.GetDatabaseConnection()
 	if c.Config.Database.Type != flatfiles.FlatFileDialect && dbConn == nil {
 		// nolint:wrapcheck
-		return ec.Redirect(http.StatusFound, "/database_not_available")
+		return ectx.Redirect(http.StatusFound, "/database_not_available")
 	}
 
-	pageFromParamRaw := ec.Param("page")
+	pageFromParamRaw := ectx.Param("page")
 
 	page := 1
 
@@ -66,34 +66,34 @@ func pastesGET(ec echo.Context) error {
 	if err3 != nil {
 		c.Logger.Error().Err(err3).Msg("Failed to get pastes list from database")
 
-		noPastesToShowTpl := templater.GetErrorTemplate(ec, "No pastes to show.")
+		noPastesToShowTpl := templater.GetErrorTemplate(ectx, "No pastes to show.")
 
 		// nolint:wrapcheck
-		return ec.HTML(http.StatusOK, noPastesToShowTpl)
+		return ectx.HTML(http.StatusOK, noPastesToShowTpl)
 	}
 
 	if len(pastes) > 0 {
 		pastesString = ""
 
-		for i := range pastes {
+		for _, paste := range pastes {
 			pasteDataMap := make(map[string]string)
-			pasteDataMap["pasteID"] = strconv.Itoa(pastes[i].ID)
-			pasteDataMap["pasteTitle"] = pastes[i].Title
-			pasteDataMap["pasteDate"] = pastes[i].CreatedAt.Format("2006-01-02 @ 15:04:05") + " UTC"
+			pasteDataMap["pasteID"] = strconv.Itoa(paste.ID)
+			pasteDataMap["pasteTitle"] = paste.Title
+			pasteDataMap["pasteDate"] = paste.CreatedAt.Format("2006-01-02 @ 15:04:05") + " UTC"
 
 			// Get max 4 lines of each paste.
-			pasteDataSplitted := strings.Split(pastes[i].Data, "\n")
+			pasteDataSplitted := strings.Split(paste.Data, "\n")
 
 			var pasteData string
 
 			if len(pasteDataSplitted) < 4 {
-				pasteData = pastes[i].Data
+				pasteData = paste.Data
 			} else {
 				pasteData = strings.Join(pasteDataSplitted[0:4], "\n")
 			}
 
 			pasteDataMap["pasteData"] = pasteData
-			pasteTpl := templater.GetRawTemplate(ec, "pastelist_paste.html", pasteDataMap)
+			pasteTpl := templater.GetRawTemplate(ectx, "pastelist_paste.html", pasteDataMap)
 
 			pastesString += pasteTpl
 		}
@@ -104,8 +104,8 @@ func pastesGET(ec echo.Context) error {
 	c.Logger.Debug().Int("total pages", pages).Int("current page", page).Msg("Paging data")
 	paginationHTML := pagination.CreateHTML(page, pages, "/pastes/")
 
-	pasteListTpl := templater.GetTemplate(ec, "pastelist_list.html", map[string]string{"pastes": pastesString, "pagination": paginationHTML})
+	pasteListTpl := templater.GetTemplate(ectx, "pastelist_list.html", map[string]string{"pastes": pastesString, "pagination": paginationHTML})
 
 	// nolint:wrapcheck
-	return ec.HTML(http.StatusOK, pasteListTpl)
+	return ectx.HTML(http.StatusOK, pasteListTpl)
 }

internal/context/http_server.go

@@ -31,16 +31,16 @@ func (c *Context) initializeHTTPServer() {
 // Wrapper around previous function.
 func (c *Context) echoReqLogger() echo.MiddlewareFunc {
 	return func(next echo.HandlerFunc) echo.HandlerFunc {
-		return func(ec echo.Context) error {
+		return func(ectx echo.Context) error {
 			c.Logger.Info().
-				Str("IP", ec.RealIP()).
-				Str("Host", ec.Request().Host).
-				Str("Method", ec.Request().Method).
-				Str("Path", ec.Request().URL.Path).
-				Str("UA", ec.Request().UserAgent()).
+				Str("IP", ectx.RealIP()).
+				Str("Host", ectx.Request().Host).
+				Str("Method", ectx.Request().Method).
+				Str("Path", ectx.Request().URL.Path).
+				Str("UA", ectx.Request().UserAgent()).
 				Msg("HTTP request")
 
-			return next(ec)
+			return next(ectx)
 		}
 	}
 }

internal/context/logger.go

@@ -11,14 +11,14 @@ import (
 )
 
 // Puts memory usage into log lines.
-func (c *Context) getMemoryUsage(e *zerolog.Event, level zerolog.Level, message string) {
+func (c *Context) getMemoryUsage(event *zerolog.Event, level zerolog.Level, message string) {
 	var m runtime.MemStats
 
 	runtime.ReadMemStats(&m)
 
-	e.Str("memalloc", fmt.Sprintf("%dMB", m.Alloc/1024/1024))
-	e.Str("memsys", fmt.Sprintf("%dMB", m.Sys/1024/1024))
-	e.Str("numgc", fmt.Sprintf("%d", m.NumGC))
+	event.Str("memalloc", fmt.Sprintf("%dMB", m.Alloc/1024/1024))
+	event.Str("memsys", fmt.Sprintf("%dMB", m.Sys/1024/1024))
+	event.Str("numgc", fmt.Sprintf("%d", m.NumGC))
 }
 
 // Initializes logger.
@@ -26,26 +26,26 @@ func (c *Context) initializeLogger() {
 	// Устанавливаем форматирование логгера.
 	// nolint:exhaustivestruct
 	output := zerolog.ConsoleWriter{Out: os.Stdout, NoColor: false, TimeFormat: time.RFC3339}
-	output.FormatLevel = func(i interface{}) string {
+	output.FormatLevel = func(lvlRaw interface{}) string {
 		var v string
 
-		if ii, ok := i.(string); ok {
-			ii = strings.ToUpper(ii)
-			switch ii {
+		if lvl, ok := lvlRaw.(string); ok {
+			lvl = strings.ToUpper(lvl)
+			switch lvl {
 			case "DEBUG":
-				v = fmt.Sprintf("\x1b[30m%-5s\x1b[0m", ii)
+				v = fmt.Sprintf("\x1b[30m%-5s\x1b[0m", lvl)
 			case "ERROR":
-				v = fmt.Sprintf("\x1b[31m%-5s\x1b[0m", ii)
+				v = fmt.Sprintf("\x1b[31m%-5s\x1b[0m", lvl)
 			case "FATAL":
-				v = fmt.Sprintf("\x1b[35m%-5s\x1b[0m", ii)
+				v = fmt.Sprintf("\x1b[35m%-5s\x1b[0m", lvl)
 			case "INFO":
-				v = fmt.Sprintf("\x1b[32m%-5s\x1b[0m", ii)
+				v = fmt.Sprintf("\x1b[32m%-5s\x1b[0m", lvl)
 			case "PANIC":
-				v = fmt.Sprintf("\x1b[36m%-5s\x1b[0m", ii)
+				v = fmt.Sprintf("\x1b[36m%-5s\x1b[0m", lvl)
 			case "WARN":
-				v = fmt.Sprintf("\x1b[33m%-5s\x1b[0m", ii)
+				v = fmt.Sprintf("\x1b[33m%-5s\x1b[0m", lvl)
 			default:
-				v = ii
+				v = lvl
 			}
 		}
 

internal/database/dialects/flatfiles/flatfiles.go

@@ -250,16 +250,16 @@ func (ff *FlatFiles) Initialize() {
 	}
 }
 
-func (ff *FlatFiles) SavePaste(p *structs.Paste) (int64, error) {
+func (ff *FlatFiles) SavePaste(paste *structs.Paste) (int64, error) {
 	ff.writeMutex.Lock()
 	// Write paste data on disk.
 	filesOnDisk, _ := ioutil.ReadDir(filepath.Join(ff.path, "pastes"))
 	pasteID := len(filesOnDisk) + 1
-	p.ID = pasteID
+	paste.ID = pasteID
 
 	c.Logger.Debug().Int("new paste ID", pasteID).Msg("Writing paste to disk")
 
-	data, err := json.Marshal(p)
+	data, err := json.Marshal(paste)
 	if err != nil {
 		ff.writeMutex.Unlock()
 
@@ -267,8 +267,7 @@ func (ff *FlatFiles) SavePaste(p *structs.Paste) (int64, error) {
 		return 0, err
 	}
 
-	// nolint:gosec
-	err = ioutil.WriteFile(filepath.Join(ff.path, "pastes", strconv.Itoa(pasteID)+".json"), data, 0644)
+	err = ioutil.WriteFile(filepath.Join(ff.path, "pastes", strconv.Itoa(pasteID)+".json"), data, 0o600)
 	if err != nil {
 		ff.writeMutex.Unlock()
 
@@ -280,7 +279,7 @@ func (ff *FlatFiles) SavePaste(p *structs.Paste) (int64, error) {
 	// nolint:exhaustivestruct
 	indexData := Index{}
 	indexData.ID = pasteID
-	indexData.Private = p.Private
+	indexData.Private = paste.Private
 	ff.pastesIndex = append(ff.pastesIndex, indexData)
 	ff.writeMutex.Unlock()
 
@@ -297,8 +296,7 @@ func (ff *FlatFiles) Shutdown() {
 		return
 	}
 
-	// nolint:gosec
-	err1 := ioutil.WriteFile(filepath.Join(ff.path, "pastes", "index.json"), indexData, 0644)
+	err1 := ioutil.WriteFile(filepath.Join(ff.path, "pastes", "index.json"), indexData, 0o600)
 	if err1 != nil {
 		c.Logger.Error().Err(err1).Msg("Failed to write index data to file. Pretty sure that you've lost your pastes.")
 

internal/database/dialects/mysql/migrations/4_passworded_pastes.go

@@ -28,14 +28,14 @@ import (
 	"database/sql"
 )
 
-func PasswordedPastesUp(tx *sql.Tx) error {
-	_, err := tx.Exec("ALTER TABLE `pastes` ADD `password` varchar(64) NOT NULL DEFAULT '' COMMENT 'Password for paste (scrypted and sha256ed).'")
+func PasswordedPastesUp(txn *sql.Tx) error {
+	_, err := txn.Exec("ALTER TABLE `pastes` ADD `password` varchar(64) NOT NULL DEFAULT '' COMMENT 'Password for paste (scrypted and sha256ed).'")
 	if err != nil {
 		// nolint:wrapcheck
 		return err
 	}
 
-	_, err1 := tx.Exec("ALTER TABLE `pastes` ADD `password_salt` varchar(64) NOT NULL DEFAULT '' COMMENT 'Password salt (sha256ed).'")
+	_, err1 := txn.Exec("ALTER TABLE `pastes` ADD `password_salt` varchar(64) NOT NULL DEFAULT '' COMMENT 'Password salt (sha256ed).'")
 	if err1 != nil {
 		// nolint:wrapcheck
 		return err1
@@ -44,14 +44,14 @@ func PasswordedPastesUp(tx *sql.Tx) error {
 	return nil
 }
 
-func PasswordedPastesDown(tx *sql.Tx) error {
-	_, err := tx.Exec("ALTER TABLE `pastes` DROP COLUMN `password`")
+func PasswordedPastesDown(txn *sql.Tx) error {
+	_, err := txn.Exec("ALTER TABLE `pastes` DROP COLUMN `password`")
 	if err != nil {
 		// nolint:wrapcheck
 		return err
 	}
 
-	_, err1 := tx.Exec("ALTER TABLE `pastes` DROP COLUMN `password_salt`")
+	_, err1 := txn.Exec("ALTER TABLE `pastes` DROP COLUMN `password_salt`")
 	if err1 != nil {
 		// nolint:wrapcheck
 		return err1

internal/database/dialects/mysql/mysqldatabase.go

@@ -81,15 +81,15 @@ func (db *Database) GetPaste(pasteID int) (*structs.Paste, error) {
 	db.check()
 
 	// nolint:exhaustivestruct
-	p := &structs.Paste{}
+	paste := &structs.Paste{}
 
-	err := db.db.Get(p, db.db.Rebind("SELECT * FROM `pastes` WHERE id=?"), pasteID)
+	err := db.db.Get(paste, db.db.Rebind("SELECT * FROM `pastes` WHERE id=?"), pasteID)
 	if err != nil {
 		// nolint:wrapcheck
 		return nil, err
 	}
 
-	return p, nil
+	return paste, nil
 }
 
 func (db *Database) GetPagedPastes(page int) ([]structs.Paste, error) {
@@ -195,13 +195,13 @@ func (db *Database) SavePaste(p *structs.Paste) (int64, error) {
 		return 0, err
 	}
 
-	ID, err1 := result.LastInsertId()
+	lastInsertID, err1 := result.LastInsertId()
 	if err1 != nil {
 		// nolint:wrapcheck
 		return 0, err
 	}
 
-	return ID, nil
+	return lastInsertID, nil
 }
 
 func (db *Database) Shutdown() {

internal/database/dialects/postgresql/migrations/4_passworded_pastes.go

@@ -28,14 +28,14 @@ import (
 	"database/sql"
 )
 
-func PasswordedPastesUp(tx *sql.Tx) error {
-	_, err := tx.Exec("ALTER TABLE pastes ADD COLUMN password VARCHAR(64) NOT NULL DEFAULT ''; COMMENT ON COLUMN pastes.password IS 'Password for paste (scrypted and sha256ed).';")
+func PasswordedPastesUp(txn *sql.Tx) error {
+	_, err := txn.Exec("ALTER TABLE pastes ADD COLUMN password VARCHAR(64) NOT NULL DEFAULT ''; COMMENT ON COLUMN pastes.password IS 'Password for paste (scrypted and sha256ed).';")
 	if err != nil {
 		// nolint:wrapcheck
 		return err
 	}
 
-	_, err1 := tx.Exec("ALTER TABLE pastes ADD COLUMN password_salt VARCHAR(64) NOT NULL DEFAULT ''; COMMENT ON COLUMN pastes.password_salt IS 'Password salt (sha256ed).';")
+	_, err1 := txn.Exec("ALTER TABLE pastes ADD COLUMN password_salt VARCHAR(64) NOT NULL DEFAULT ''; COMMENT ON COLUMN pastes.password_salt IS 'Password salt (sha256ed).';")
 	if err1 != nil {
 		// nolint:wrapcheck
 		return err1
@@ -44,14 +44,14 @@ func PasswordedPastesUp(tx *sql.Tx) error {
 	return nil
 }
 
-func PasswordedPastesDown(tx *sql.Tx) error {
-	_, err := tx.Exec("ALTER TABLE pastes DROP COLUMN password")
+func PasswordedPastesDown(txn *sql.Tx) error {
+	_, err := txn.Exec("ALTER TABLE pastes DROP COLUMN password")
 	if err != nil {
 		// nolint:wrapcheck
 		return err
 	}
 
-	_, err1 := tx.Exec("ALTER TABLE pastes DROP COLUMN password_salt")
+	_, err1 := txn.Exec("ALTER TABLE pastes DROP COLUMN password_salt")
 	if err1 != nil {
 		// nolint:wrapcheck
 		return err1

internal/database/dialects/postgresql/postgresqldatabase.go

@@ -84,9 +84,9 @@ func (db *Database) GetPaste(pasteID int) (*structs.Paste, error) {
 	db.check()
 
 	// nolint:exhaustivestruct
-	p := &structs.Paste{}
+	paste := &structs.Paste{}
 
-	err := db.db.Get(p, db.db.Rebind("SELECT * FROM pastes WHERE id=$1"), pasteID)
+	err := db.db.Get(paste, db.db.Rebind("SELECT * FROM pastes WHERE id=$1"), pasteID)
 	if err != nil {
 		// nolint:wrapcheck
 		return nil, err
@@ -96,10 +96,10 @@ func (db *Database) GetPaste(pasteID int) (*structs.Paste, error) {
 	// timestamps in server's local timezone. We should convert them.
 	loc, _ := time.LoadLocation("UTC")
 
-	utcCreatedAt := p.CreatedAt.In(loc)
-	p.CreatedAt = &utcCreatedAt
+	utcCreatedAt := paste.CreatedAt.In(loc)
+	paste.CreatedAt = &utcCreatedAt
 
-	return p, nil
+	return paste, nil
 }
 
 func (db *Database) GetPagedPastes(page int) ([]structs.Paste, error) {
@@ -197,7 +197,7 @@ func (db *Database) Initialize() {
 	migrations.Migrate()
 }
 
-func (db *Database) SavePaste(p *structs.Paste) (int64, error) {
+func (db *Database) SavePaste(paste *structs.Paste) (int64, error) {
 	db.check()
 
 	stmt, err := db.db.PrepareNamed("INSERT INTO pastes (title, data, created_at, keep_for, keep_for_unit_type, language, private, password, password_salt) VALUES (:title, :data, :created_at, :keep_for, :keep_for_unit_type, :language, :private, :password, :password_salt) RETURNING id")
@@ -208,7 +208,7 @@ func (db *Database) SavePaste(p *structs.Paste) (int64, error) {
 
 	var id int64
 
-	err = stmt.Get(&id, p)
+	err = stmt.Get(&id, paste)
 	if err != nil {
 		// nolint:wrapcheck
 		return 0, err

internal/templater/exported.go

@@ -50,11 +50,11 @@ func GetErrorTemplate(ec echo.Context, errorText string) string {
 }
 
 // GetRawTemplate returns only raw template data.
-func GetRawTemplate(ec echo.Context, templateName string, data map[string]string) string {
+func GetRawTemplate(ectx echo.Context, templateName string, data map[string]string) string {
 	// Getting main template.
 	tplRaw, err := assets.Data.ReadFile(templateName)
 	if err != nil {
-		_ = ec.String(http.StatusBadRequest, templateName+" not found.")
+		_ = ectx.String(http.StatusBadRequest, templateName+" not found.")
 
 		return ""
 	}
@@ -69,13 +69,13 @@ func GetRawTemplate(ec echo.Context, templateName string, data map[string]string
 }
 
 // GetTemplate returns formatted template that can be outputted to client.
-func GetTemplate(ec echo.Context, name string, data map[string]string) string {
+func GetTemplate(ectx echo.Context, name string, data map[string]string) string {
 	log.Debug().Str("name", name).Msg("Requested template")
 
 	// Getting main template.
 	mainhtml, err := assets.Data.ReadFile("main.html")
 	if err != nil {
-		_ = ec.String(http.StatusBadRequest, "main.html not found.")
+		_ = ectx.String(http.StatusBadRequest, "main.html not found.")
 
 		return ""
 	}
@@ -83,7 +83,7 @@ func GetTemplate(ec echo.Context, name string, data map[string]string) string {
 	// Getting navigation.
 	navhtml, err1 := assets.Data.ReadFile("navigation.html")
 	if err1 != nil {
-		_ = ec.String(http.StatusBadRequest, "navigation.html not found.")
+		_ = ectx.String(http.StatusBadRequest, "navigation.html not found.")
 
 		return ""
 	}
@@ -91,7 +91,7 @@ func GetTemplate(ec echo.Context, name string, data map[string]string) string {
 	// Getting footer.
 	footerhtml, err2 := assets.Data.ReadFile("footer.html")
 	if err2 != nil {
-		_ = ec.String(http.StatusBadRequest, "footer.html not found.")
+		_ = ectx.String(http.StatusBadRequest, "footer.html not found.")
 
 		return ""
 	}
@@ -105,7 +105,7 @@ func GetTemplate(ec echo.Context, name string, data map[string]string) string {
 	// Get requested template.
 	reqhtml, err3 := assets.Data.ReadFile(name)
 	if err3 != nil {
-		_ = ec.String(http.StatusBadRequest, name+" not found.")
+		_ = ectx.String(http.StatusBadRequest, name+" not found.")
 
 		return ""
 	}