Remove unnecessary pass in validatePath.
Perform a single pass over pathComponents in both validatePath and
validateSafePath instead.
Test: presubmits
Change-Id: I1499183e345ca180900c54a18f9dc8bd534f2588
diff --git a/android/paths.go b/android/paths.go
index 0fc39df..2c50104 100644
--- a/android/paths.go
+++ b/android/paths.go
@@ -1868,10 +1868,14 @@
return ret
}
-// validateSafePath validates a path that we trust (may contain ninja variables).
-// Ensures that each path component does not attempt to leave its component.
-func validateSafePath(pathComponents ...string) (string, error) {
+// validatePathInternal ensures that a path does not leave its component, and
+// optionally doesn't contain Ninja variables.
+func validatePathInternal(allowNinjaVariables bool, pathComponents ...string) (string, error) {
for _, path := range pathComponents {
+ if !allowNinjaVariables && strings.Contains(path, "$") {
+ return "", fmt.Errorf("Path contains invalid character($): %s", path)
+ }
+
path := filepath.Clean(path)
if path == ".." || strings.HasPrefix(path, "../") || strings.HasPrefix(path, "/") {
return "", fmt.Errorf("Path is outside directory: %s", path)
@@ -1883,16 +1887,18 @@
return filepath.Join(pathComponents...), nil
}
+// validateSafePath validates a path that we trust (may contain ninja
+// variables). Ensures that each path component does not attempt to leave its
+// component. Returns a joined version of each path component.
+func validateSafePath(pathComponents ...string) (string, error) {
+ return validatePathInternal(true, pathComponents...)
+}
+
// validatePath validates that a path does not include ninja variables, and that
// each path component does not attempt to leave its component. Returns a joined
// version of each path component.
func validatePath(pathComponents ...string) (string, error) {
- for _, path := range pathComponents {
- if strings.Contains(path, "$") {
- return "", fmt.Errorf("Path contains invalid character($): %s", path)
- }
- }
- return validateSafePath(pathComponents...)
+ return validatePathInternal(false, pathComponents...)
}
func PathForPhony(ctx PathContext, phony string) WritablePath {