Use camo.Always instead of camo.Allways (go-gitea#32097)

Fix go-gitea#31575

https://gitea.com/gitea/docs/pulls/73
(cherry picked from commit 8e2dd5d)
(cherry picked from commit 2ffb08b)

Author: lunny

custom/conf/app.example.ini

@@ -529,7 +529,8 @@ INTERNAL_TOKEN =
 ;; HMAC to encode urls with, it **is required** if camo is enabled.
 ;HMAC_KEY =
 ;; Set to true to use camo for https too lese only non https urls are proxyed
-;ALLWAYS = false
+;; ALLWAYS is deprecated and will be removed in the future
+;ALWAYS = false
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

modules/markup/camo.go

@@ -38,7 +38,7 @@ func camoHandleLink(link string) string {
 	if setting.Camo.Enabled {
 		lnkURL, err := url.Parse(link)
 		if err == nil && lnkURL.IsAbs() && !strings.HasPrefix(link, setting.AppURL) &&
-			(setting.Camo.Allways || lnkURL.Scheme != "https") {
+			(setting.Camo.Always || lnkURL.Scheme != "https") {
 			return CamoEncode(link)
 		}
 	}

modules/markup/camo_test.go

@@ -28,7 +28,7 @@ func TestCamoHandleLink(t *testing.T) {
 		"https://image.proxy/eivin43gJwGVIjR9MiYYtFIk0mw/aHR0cDovL3Rlc3RpbWFnZXMub3JnL2ltZy5qcGc",
 		camoHandleLink("http://testimages.org/img.jpg"))
 
-	setting.Camo.Allways = true
+	setting.Camo.Always = true
 	assert.Equal(t,
 		"https://gitea.com/img.jpg",
 		camoHandleLink("https://gitea.com/img.jpg"))

modules/setting/camo.go

@@ -3,18 +3,28 @@
 
 package setting
 
-import "code.gitea.io/gitea/modules/log"
+import (
+	"strconv"
+
+	"code.gitea.io/gitea/modules/log"
+)
 
 var Camo = struct {
 	Enabled   bool
 	ServerURL string `ini:"SERVER_URL"`
 	HMACKey   string `ini:"HMAC_KEY"`
-	Allways   bool
+	Always    bool
 }{}
 
 func loadCamoFrom(rootCfg ConfigProvider) {
 	mustMapSetting(rootCfg, "camo", &Camo)
 	if Camo.Enabled {
+		oldValue := rootCfg.Section("camo").Key("ALLWAYS").MustString("")
+		if oldValue != "" {
+			log.Warn("camo.ALLWAYS is deprecated, use camo.ALWAYS instead")
+			Camo.Always, _ = strconv.ParseBool(oldValue)
+		}
+
 		if Camo.ServerURL == "" || Camo.HMACKey == "" {
 			log.Fatal(`Camo settings require "SERVER_URL" and HMAC_KEY`)
 		}