add no-cache support

src/mod/applications/mod_httapi/mod_httapi.c

@@ -161,6 +161,8 @@ struct http_file_context {
 	time_t expires;
 	switch_file_t *lock_fd;
 	switch_memory_pool_t *pool;
+	int del_on_close;
+
 };
 
 typedef struct http_file_context http_file_context_t;
@@ -2013,7 +2015,8 @@ static switch_status_t write_meta_file(http_file_context_t *context, const char
 		const char *cc;
 		const char *p;
 
-		if (headers && (cc = switch_event_get_header(headers, "Cache-Control")) && (p = switch_stristr("max-age=", cc))) {
+		if (headers && (cc = switch_event_get_header(headers, "Cache-Control"))) {
+			if ((p = switch_stristr("max-age=", cc))) {
 				p += 8;
 				
 				if (!zstr(p)) {
@@ -2022,6 +2025,10 @@ static switch_status_t write_meta_file(http_file_context_t *context, const char
 				}
 			}
 
+			if (switch_stristr("no-cache", cc) || switch_stristr("no-store", cc)) {
+				context->del_on_close = 1;
+			}
+		}
 
 		switch_snprintf(write_data, sizeof(write_data), 
 						"%" SWITCH_TIME_T_FMT ":%s",
@@ -2206,6 +2213,14 @@ static switch_status_t http_file_file_close(switch_file_handle_t *handle)
 		switch_core_file_close(&context->fh);
 	}
 	
+	if (context->del_on_close) {
+		if (context->cache_file) {
+			unlink(context->cache_file);
+			unlink(context->meta_file);
+			unlink(context->lock_file);
+		}
+	}
+
 	return SWITCH_STATUS_SUCCESS;
 }