bool KeystoreClientImpl::listKeys(const std::string& prefix,
std::vector<std::string>* key_name_list) {
String16 prefix16(prefix.data(), prefix.size());
android::Vector<String16> matches;
auto error_code = keystore_->list(prefix16, kDefaultUID, &matches);
if (error_code.isOk()) {
for (const auto& match : matches) {
android::String8 key_name(match);
key_name_list->push_back(prefix + std::string(key_name.string(), key_name.size()));
}
return true;
}
return false;
}
bool ScriptInterface::EnumeratePropertyNamesWithPrefix(jsval obj, const char* prefix, std::vector<std::string>& out)
{
utf16string prefix16 (prefix, prefix+strlen(prefix));
if (! JSVAL_IS_OBJECT(obj))
return false; // TODO: log error messages
JSObject* it = JS_NewPropertyIterator(m->m_cx, JSVAL_TO_OBJECT(obj));
if (!it)
return false;
while (true)
{
jsid idp;
jsval val;
if (! JS_NextProperty(m->m_cx, it, &idp) || ! JS_IdToValue(m->m_cx, idp, &val))
return false;
if (val == JSVAL_VOID)
break; // end of iteration
if (! JSVAL_IS_STRING(val))
continue; // ignore integer properties
JSString* name = JSVAL_TO_STRING(val);
size_t len;
const jschar* chars = JS_GetStringCharsAndLength(m->m_cx, name, &len);
if (chars && len >= prefix16.size() && memcmp(chars, prefix16.c_str(), prefix16.size()*2) == 0)
out.push_back(std::string(chars, chars+len)); // handles Unicode poorly
}
// Recurse up the prototype chain
JSObject* prototype = JS_GetPrototype(m->m_cx, JSVAL_TO_OBJECT(obj));
if (prototype)
{
if (! EnumeratePropertyNamesWithPrefix(OBJECT_TO_JSVAL(prototype), prefix, out))
return false;
}
return true;
}