Update write characteristic to use hash function, making createPSK public function

lib/ble/index.js

@@ -65,16 +65,23 @@ function onWifiWrite (data, offset, withoutResponse, callback) {
  	ssid = obj.ssid
  	pwd = obj.pwd
  	log.info(`connecting to AP`, { ssid : ssid })
- 	return wifi.setNetwork(ssid, pwd, (err, data) => {
+ 	return wifi.createPSK(ssid, pwd, (err, hash, plaintext) => {
  		if (err) {
- 			log.error('Error configuring wifi', err)
+ 			log.error('Error hashing wifi password', err)
- 			result = bleno.Characteristic.RESULT_UNLIKELY_ERROR
+	 		result = bleno.Characteristic.RESULT_UNLIKELY_ERROR
 			return callback(result)
  		}
- 		currentWifi = ssid
+	 	return wifi.setNetwork(ssid, plaintext, hash, (err, data) => {
- 		log.info(`Connected to AP`, { ssid : ssid })
+	 		if (err) {
- 		result = bleno.Characteristic.RESULT_SUCCESS
+	 			log.error('Error configuring wifi', err)
-		return callback(result)
+	 			result = bleno.Characteristic.RESULT_UNLIKELY_ERROR
+				return callback(result)
+	 		}
+	 		currentWifi = ssid
+	 		log.info(`Connected to AP`, { ssid : ssid })
+	 		result = bleno.Characteristic.RESULT_SUCCESS
+			return callback(result)
+	 	})
  	})
 }
 

lib/wifi/index.js

@@ -111,7 +111,7 @@ class Wifi {
 		_cb = () => {}
 	}
 	/**
-	 * (internal function) Create sanitized wpa_supplicant.conf stanza for
+	 * Create sanitized wpa_supplicant.conf stanza for
 	 * configuring wifi without storing plaintext passwords
 	 * @example
 	 * network={
@@ -121,9 +121,10 @@ class Wifi {
 	 *	}
 	 *
 	 * @param {string} 	ssid 		SSID of wifi network
-	 * @param {string}
+	 * @param {string}  pwd 		Plaintext passphrase of wifi network
+	 * @param {function} callback 	Function called after psk hash is generated
 	 */
-	_createPSK (ssid, pwd, callback) {
+	createPSK (ssid, pwd, callback) {
 		const cmd = `wpa_passphrase "${ssid}" "${pwd}" | grep "psk="`
 		let lines
 		let hash