add support for azure custom endpoints

lib/routes/api/speech-credentials.js

@@ -234,7 +234,7 @@ router.put('/:sid', async(req, res) => {
   const sid = req.params.sid;
   const logger = req.app.locals.logger;
   try {
-    const {use_for_tts, use_for_stt} = req.body;
+    const {use_for_tts, use_for_stt, region, aws_region} = req.body;
     if (typeof use_for_tts === 'undefined' && typeof use_for_stt === 'undefined') {
       throw new DbErrorUnprocessableRequest('use_for_tts and use_for_stt are the only updateable fields');
     }
@@ -248,9 +248,39 @@ router.put('/:sid', async(req, res) => {
 
     /* update the credential if provided */
     try {
-      obj.credential = encryptCredential(req.body);
-    } catch (err) {}
+      const cred = await SpeechCredential.retrieve(sid);
+      if (1 === cred.length) {
+        const {credential, vendor} = cred[0];
+        const o = JSON.parse(decrypt(credential));
+        const {
+          use_custom_tts,
+          custom_tts_endpoint,
+          use_custom_stt,
+          custom_stt_endpoint
+        } = req.body;
 
+        const newCred = {
+          ...o,
+          region,
+          vendor,
+          aws_region,
+          use_custom_tts,
+          custom_tts_endpoint,
+          use_custom_stt,
+          custom_stt_endpoint
+        };
+        logger.info({o, newCred}, 'updating speech credential with this new credential');
+        obj.credential = encryptCredential(newCred);
+        obj.vendor = vendor;
+      }
+      else {
+        logger.info({sid}, 'speech credential not found!!');
+      }
+    } catch (err) {
+      logger.error({err}, 'error updating speech credential');
+    }
+
+    logger.info({obj}, 'updating speech credential with changes');
     const rowsAffected = await SpeechCredential.update(sid, obj);
     if (rowsAffected === 0) {
       return res.sendStatus(404);

lib/utils/speech-utils.js

@@ -67,6 +67,14 @@ const testMicrosoftTts = async(logger, credentials) => {
     custom_stt_endpoint
   } = credentials;
 
+  logger.info({
+    api_key,
+    region,
+    use_custom_tts,
+    custom_tts_endpoint,
+    use_custom_stt,
+    custom_stt_endpoint
+  }, 'testing microsoft tts');
   if (!api_key) throw new Error('testMicrosoftTts: credentials are missing api_key');
   if (!region) throw new Error('testMicrosoftTts: credentials are missing region');
   try {