public Repository createRepository(final Project.NameKey name)
throws RepositoryNotFoundException {
if (isUnreasonableName(name)) {
throw new RepositoryNotFoundException("Invalid name: " + name);
}
try {
File dir = FileKey.resolve(gitDirOf(name), FS.DETECTED);
FileKey loc;
if (dir != null) {
// Already exists on disk, use the repository we found.
//
loc = FileKey.exact(dir, FS.DETECTED);
} else {
// It doesn't exist under any of the standard permutations
// of the repository name, so prefer the standard bare name.
//
String n = name.get();
if (!n.endsWith(Constants.DOT_GIT_EXT)) {
n = n + Constants.DOT_GIT_EXT;
}
loc = FileKey.exact(new File(basePath, n), FS.DETECTED);
}
return RepositoryCache.open(loc, false);
} catch (IOException e1) {
final RepositoryNotFoundException e2;
e2 = new RepositoryNotFoundException("Cannot open repository " + name);
e2.initCause(e1);
throw e2;
}
}
private boolean isUnreasonableName(final Project.NameKey nameKey) {
final String name = nameKey.get();
if (name.length() == 0) return true; // no empty paths
if (name.indexOf('\\') >= 0) return true; // no windows/dos stlye paths
if (name.charAt(0) == '/') return true; // no absolute paths
if (new File(name).isAbsolute()) return true; // no absolute paths
if (name.startsWith("../")) return true; // no "l../etc/passwd"
if (name.contains("/../")) return true; // no "foo/../etc/passwd"
if (name.contains("/./")) return true; // "foo/./foo" is insane to ask
if (name.contains("//")) return true; // windows UNC path can be "//..."
return false; // is a reasonable name
}
private File gitDirOf(Project.NameKey name) {
return new File(getBasePath(), name.get());
}