make translation service endpoint configurable

ast/help.ts

@@ -1752,19 +1752,21 @@ module TDev {
 
         private translateToScriptAsync(to: string, tutorialId: string): Promise { // translated topic
             // unpublished tutorial
-            if (!tutorialId)
+            if (!tutorialId ||
+                // cloud config not set
+                !Cloud.config.translateCdnUrl || !Cloud.config.translateApiUrl)
                 return Promise.as(this.translatedTopic = <HelpTopicInfoJson>{ body: undefined });
 
             return ProgressOverlay.lockAndShowAsync(lf("translating topic...") + (dbg ? tutorialId : ""))
                 .then(() => {
-                    var blobUrl = HTML.proxyResource("https://tdtutorialtranslator.blob.core.windows.net/docs/" + to + "/" + tutorialId);
+                    var blobUrl = HTML.proxyResource(Cloud.config.translateCdnUrl + "/docs/" + to + "/" + tutorialId);
                     return Util.httpGetJsonAsync(blobUrl).then((blob) => {
                         this.translatedTopic = blob;
                         return this.translatedTopic;
                     }, e => {
                             // requestion translation
                             Util.log('requesting topic translation');
-                            var url = 'https://tdtutorialtranslator.azurewebsites.net/api/translate_doc?scriptId=' + tutorialId + '&to=' + to;
+                            var url = Cloud.config.translateApiUrl + '/translate_doc?scriptId=' + tutorialId + '&to=' + to;
                             return Util.httpGetJsonAsync(url).then((js) => {
                                 this.translatedTopic = js.info;
                                 return this.translatedTopic;

editor/scriptList.ts

@@ -3903,12 +3903,13 @@
         }
 
         static translateCommentAsync(cid: string): Promise { // text
+            if (!Cloud.config.translateCdnUrl || !Cloud.config.translateApiUrl) return Promise.as(undefined);
             var to = Util.getTranslationLanguage();
-            var blobUrl = "https://tdtutorialtranslator.blob.core.windows.net/comments/" + to + "/" + cid;
+            var blobUrl = Cloud.config.translateCdnUrl + "/comments/" + to + "/" + cid;
             return Util.httpGetTextAsync(blobUrl)
                 .then((blob) => blob, e => {
                     // requestion translation
-                    var url = 'https://tdtutorialtranslator.azurewebsites.net/api/translate_comment?commentId=' + cid + '&to=' + to;
+                    var url = Cloud.config.translateApiUrl + '/translate_comment?commentId=' + cid + '&to=' + to;
                     return Util.httpGetJsonAsync(url).then((js) => js.translated, e => undefined);
                 });
         }

editor/tutorial.ts

@@ -1118,21 +1118,21 @@ module TDev
 
         private translateAsync(to : string) : Promise { // of TranslatedTutorialInfo
             if (this.translatedTutorial) return Promise.as(this.translatedTutorial);
-            if (!to || /^en/i.test(to) || Cloud.isOffline()) return Promise.as(undefined);
+            if (!to || /^en(-us)?$/i.test(to) || Cloud.isOffline() || !Cloud.config.translateCdnUrl || !Cloud.config.translateApiUrl) return Promise.as(undefined);
 
             tick(Ticks.tutorialTranslateScript, to);
             var tutorialId = this.topic.json.id;
             return ProgressOverlay.lockAndShowAsync(lf("translating tutorial..."))
                 .then(() => {
                 Util.log('loading tutorial translation from blob');
-                var blobUrl = HTML.proxyResource("https://tdtutorialtranslator.blob.core.windows.net/translations/" + to + "/" + tutorialId);
+                var blobUrl = HTML.proxyResource(Cloud.config.translateCdnUrl + "/translations/" + to + "/" + tutorialId);
                 return Util.httpGetJsonAsync(blobUrl).then((blob) => {
                     this.translatedTutorial = blob;
                     return this.translatedTutorial;
                 }, e => {
                         // requestion translation
                         Util.log('requesting tutorial translation');
-                        var url = 'https://tdtutorialtranslator.azurewebsites.net/api/translate_tutorial?scriptId=' + tutorialId + '&to=' + to;
+                        var url = HTML.proxyResource(Cloud.config.translateApiUrl + '/translate_tutorial?scriptId=' + tutorialId + '&to=' + to);
                         return Util.httpGetJsonAsync(url).then((js) => {
                             this.translatedTutorial = js.info;
                             return this.translatedTutorial;

rt/cloud.ts

@@ -162,6 +162,8 @@ module TDev.Cloud {
         liteVersion: string;
         shareUrl: string;
         cdnUrl: string;
+        translateCdnUrl: string;
+        translateApiUrl: string;
         hashtag: string;
 
         tdVersion?: string;
@@ -176,6 +178,8 @@ module TDev.Cloud {
         searchApiKey: "E43690E2B2A39FEB68117546BF778DB8", // touchdevelop web app query key in portal 
         searchUrl: "https://tdsearch.search.windows.net",
         cdnUrl: "https://az31353.vo.msecnd.net",
+        translateCdnUrl: "https://tdtutorialtranslator.blob.core.windows.net",
+        translateApiUrl: "https://tdtutorialtranslator.azurewebsites.net/api",
         workspaceUrl: null,
         rootUrl: "https://www.touchdevelop.com",
         shareUrl: "http://tdev.ly",