moved webdav to dav

lib/dav/webdav/middleware_auth.v

@@ -0,0 +1,49 @@
+module webdav
+
+import encoding.base64
+
+fn (app &App) auth_middleware(mut ctx Context) bool {
+	// return true
+	auth_header := ctx.get_header(.authorization) or {
+		ctx.res.set_status(.unauthorized)
+		ctx.res.header.add(.www_authenticate, 'Basic realm="WebDAV Server"')
+		ctx.send_response_to_client('text', 'unauthorized')
+		return false
+	}
+
+	if auth_header == '' {
+		ctx.res.set_status(.unauthorized)
+		ctx.res.header.add(.www_authenticate, 'Basic realm="WebDAV Server"')
+		ctx.send_response_to_client('text', 'unauthorized')
+		return false
+	}
+
+	if !auth_header.starts_with('Basic ') {
+		ctx.res.set_status(.unauthorized)
+		ctx.res.header.add(.www_authenticate, 'Basic realm="WebDAV Server"')
+		ctx.send_response_to_client('text', 'unauthorized')
+		return false
+	}
+
+	auth_decoded := base64.decode_str(auth_header[6..])
+	split_credentials := auth_decoded.split(':')
+	if split_credentials.len != 2 {
+		ctx.res.set_status(.unauthorized)
+		ctx.res.header.add(.www_authenticate, 'Basic realm="WebDAV Server"')
+		ctx.send_response_to_client('', '')
+		return false
+	}
+	username := split_credentials[0]
+	hashed_pass := split_credentials[1]
+	if user := app.user_db[username] {
+		if user != hashed_pass {
+			ctx.res.set_status(.unauthorized)
+			ctx.send_response_to_client('text', 'unauthorized')
+			return false
+		}
+		return true
+	}
+	ctx.res.set_status(.unauthorized)
+	ctx.send_response_to_client('text', 'unauthorized')
+	return false
+}