add duckduckgo

TODO.md

@@ -8,5 +8,4 @@
 - Alternative words
 - Dictionary
 - Use the TranslateServerWebui API instead of scraping Google Translate Legacy 
-- Bing Translate
 - ICIBA

cmd/translate.go

@@ -57,6 +57,14 @@ var translateCmd = &cobra.Command{
 			} else {
 				fmt.Println(utils.TranslateYandex(dest, source, query))
 			}
+		} else if engine == "duckduckgo" {
+			if langlist == "sl" {
+				fmt.Println(utils.LangListDuckDuckGo(langlist))
+			} else if langlist == "tl" {
+				fmt.Println(utils.LangListDuckDuckGo(langlist))
+			} else {
+				fmt.Println(utils.TranslateDuckDuckGo(dest, source, query))
+			}
 		} else if engine == "mymemory" {
 			if langlist == "sl" {
 				fmt.Println(utils.LangListMyMemory(langlist))

pages/api.go

@@ -25,6 +25,8 @@ func HandleSourceLanguages(c *fiber.Ctx) error {
 		data = utils.LangListYandex("sl")
 	} else if engine == "mymemory" {
 		data = utils.LangListMyMemory("sl")
+	} else if engine == "duckduckgo" {
+		data = utils.LangListDuckDuckGo("sl")
 	}
 	return c.JSON(data)
 }
@@ -48,6 +50,8 @@ func HandleTargetLanguages(c *fiber.Ctx) error {
 		data = utils.LangListYandex("tl")
 	} else if engine == "mymemory" {
 		data = utils.LangListMyMemory("tl")
+	} else if engine == "duckduckgo" {
+		data = utils.LangListDuckDuckGo("tl")
 	}
 	return c.JSON(data)
 }
@@ -96,6 +100,8 @@ func HandleTranslate(c *fiber.Ctx) error {
 		data, err = utils.TranslateYandex(to, from, text)
 	} else if engine == "mymemory" {
 		data, err = utils.TranslateMyMemory(to, from, text)
+	} else if engine == "duckduckgo" {
+		data, err = utils.TranslateDuckDuckGo(to, from, text)
 	}
 	if err != nil {
 		return fiber.NewError(fiber.StatusInternalServerError, err.Error())

utils/engines.go

@@ -248,7 +248,33 @@ func TranslateDeepl(to string, from string, text string) (LangOut, error) {
 	langout.OutputText = ans
 	return langout, nil
 }
-func TranslateAll(to string, from string, query string) (string, string, string, string, string, string, string) {
+func TranslateDuckDuckGo(to string, from string, query string) (LangOut, error) {
+	var ToValid bool
+	var FromValid bool
+	for _, v := range LangListDuckDuckGo("sl") {
+		if v.Id == to {
+			ToValid = true
+		}
+		if v.Id == from {
+			FromValid = true
+		}
+		if FromValid == true && ToValid == true {
+			break
+		}
+	}
+	if ToValid != true {
+		return LangOut{}, errors.New("Target language code invalid")
+	}
+	if FromValid != true {
+		return LangOut{}, errors.New("Source language code invalid")
+	}
+	duckDuckGoOut := PostRequest("https://duckduckgo.com/translation.js?vqd=4-80922924764394623683473042291214994119&query=translate&to="+to+"&from="+from, []byte(query))
+	gjsonArr := duckDuckGoOut.Get("translated").Array()
+	var langout LangOut
+	langout.OutputText = gjsonArr[0].String()
+	return langout, nil
+}
+func TranslateAll(to string, from string, query string) (string, string, string, string, string, string, string, string) {
 	reverso, _ := TranslateReverso(to, from, query)
 	google, _ := TranslateGoogle(to, from, query)
 	libretranslate, _ := TranslateLibreTranslate(to, from, query)
@@ -256,5 +282,6 @@ func TranslateAll(to string, from string, query string) (string, string, string,
 	mymemory, _ := TranslateMyMemory(to, from, query)
 	yandex, _ := TranslateYandex(to, from, query)
 	deepl, _ := TranslateDeepl(to, from, query)
-	return google.OutputText, reverso.OutputText, libretranslate.OutputText, watson.OutputText, mymemory.OutputText, yandex.OutputText, deepl.OutputText
+	duckduckgo, _ := TranslateDuckDuckGo(to, from, query)
+	return google.OutputText, reverso.OutputText, libretranslate.OutputText, watson.OutputText, mymemory.OutputText, yandex.OutputText, deepl.OutputText, duckduckgo.OutputText
 }

utils/langlist-duckduckgo.go

@@ -1,6 +1,7 @@
 package utils
 
-func LangListBing(listType string) []List {
+func LangListDuckDuckGo(listType string) []List {
+	// DuckDuckGo is just Bing translate but easier to scrape :)
 	// Converted json of https://github.com/plainheart/bing-translate-api/blob/master/src/lang.json to this format
 	var ListData = []List{
 		List{