Added new mime types to string as well as simplified the httpMIMETypeToString method

src/app/HttpConstants.h

@@ -1,12 +1,24 @@
 #ifndef HTTPCONSTANTS_H
 #define HTTPCONSTANTS_H
 
+#define HTTPCONSTANTS_STRING //PSTR
+
 class HttpConstants
 {
   public:
     enum HttpRequestMethod {UNDEFINED, GET, HEAD, POST, PUT, DELETE, CONNECT, OPTIONS, TRACE, PATCH};
     enum HttpVersion {UNKNOWN, HTTP_0_9, HTTP_1_1, HTTP_1_0, HTTP_2_0};
-    enum HttpMIMEType {UNKNOWN_MIME, TEXT_PLAIN, TEXT_CSS, TEXT_HTML, TEXT_JAVASCRIPT, APPLICATION_JSON, APPLICATION_X_WWW_FORM_URLENCODED, IMAGE_PNG, IMAGE_JPEG, AUDIO_MPEG, APPLICATION_OCTET_STREAM};
+    enum HttpMIMEType { UNKNOWN_MIME,
+                        TEXT_PLAIN,
+                        TEXT_CSS,
+                        TEXT_HTML,
+                        TEXT_JAVASCRIPT,
+                        APPLICATION_JSON,
+                        APPLICATION_X_WWW_FORM_URLENCODED,
+                        IMAGE_PNG,
+                        IMAGE_JPEG,
+                        AUDIO_MPEG,
+                        APPLICATION_OCTET_STREAM};
     enum HTTP_CODE {
                       UNDEFINED_CODE = 0,
                       HTTP_CODE_CONTINUE = 100,
@@ -69,53 +81,60 @@ class HttpConstants
                       HTTP_CODE_NETWORK_AUTHENTICATION_REQUIRED = 511
                    };
 	
-	static char *httpVersionToString(HttpVersion v, char *buffer)
+	static const char *httpVersionToString(HttpVersion version)
 	{
-    if(buffer == NULL)return NULL;
+		switch(version)
-    
-		switch(v)
 		{
 			case HttpVersion::HTTP_0_9:
-        strcpy_P(buffer, PSTR("HTTP/0.9"));
+        return HTTPCONSTANTS_STRING("HTTP/0.9");
-				break;
-			case HttpVersion::HTTP_1_1:
-        strcpy_P(buffer, PSTR("HTTP/1.1"));
 				break;
 			case HttpVersion::HTTP_1_0:
-        strcpy_P(buffer, PSTR("HTTP/1.0"));
+        return HTTPCONSTANTS_STRING("HTTP/1.0");
 				break;
 			case HttpVersion::HTTP_2_0:
-        strcpy_P(buffer, PSTR("HTTP/2.0"));
+        return HTTPCONSTANTS_STRING("HTTP/2.0");
 				break;
 			default:
-        strcpy_P(buffer, PSTR("HTTP/1.1"));
+        return HTTPCONSTANTS_STRING("HTTP/1.1");
 				break;
 		}
-   
-		return buffer;
 	}
 	
-	static char *httpMIMETypeToString(HttpMIMEType m, char *buffer)
+	static const char *httpMIMETypeToString(HttpMIMEType m)
 	{
-    if(buffer == NULL)return NULL;
-
     switch(m)
     {
       case HttpMIMEType::TEXT_PLAIN:
-        sprintf_P(buffer, PSTR("text/plain"));
+        return HTTPCONSTANTS_STRING("text/plain");
+        break;
+        case HttpMIMEType::TEXT_CSS:
+        return HTTPCONSTANTS_STRING("text/css");
+        break;
+        case HttpMIMEType::TEXT_HTML:
+        return HTTPCONSTANTS_STRING("text/html");
+        break;
+        case HttpMIMEType::TEXT_JAVASCRIPT:
+        return HTTPCONSTANTS_STRING("text/javascript");
         break;
       case HttpMIMEType::APPLICATION_JSON:
-        sprintf_P(buffer, PSTR("application/json"));
+        return HTTPCONSTANTS_STRING("application/json");
         break;
       case HttpMIMEType::APPLICATION_X_WWW_FORM_URLENCODED:
-        sprintf_P(buffer, PSTR("application/x-www-form-urlencoded"));
+        return HTTPCONSTANTS_STRING("application/x-www-form-urlencoded");
+        break;
+      case HttpMIMEType::IMAGE_PNG:
+        return HTTPCONSTANTS_STRING("image/png");
+        break;
+      case HttpMIMEType::IMAGE_JPEG:
+        return HTTPCONSTANTS_STRING("image/jpeg");
+        break;
+      case HttpMIMEType::AUDIO_MPEG:
+        return HTTPCONSTANTS_STRING("audio/mpeg");
         break;
       default:
-        sprintf_P(buffer, PSTR("text/plain"));
+        return HTTPCONSTANTS_STRING("application/octet-stream");
         break;
     }
-    
-		return buffer;
 	}
  
   protected: