add source.rs

src/utils/source.rs

@@ -0,0 +1,9 @@
+use std::path::Path;
+
+use regex::Regex;
+
+pub fn validate_source(source: &str) -> bool
+{
+    let re = Regex::new(r"^https?://.*").unwrap();
+    return Path::new(&source).is_file() || re.is_match(&source);
+}