Added magic file type detection

src/cache.c

@@ -6,3 +6,26 @@
  */
 
 #include "cache.h"
+#include "uri.h"
+
+int magic_init() {
+    magic = magic_open(MAGIC_MIME);
+    magic_load(magic, "/usr/share/misc/magic.mgc");
+    return 0;
+}
+
+int cache_init() {
+    magic_init();
+
+    return 0;
+}
+
+int uri_cache_init(http_uri *uri) {
+    if (uri->filename == NULL) {
+        return -1;
+    }
+
+
+
+    return 0;
+}