hmz007
36ed224bac
Signed-off-by: hmz007 <hmz007@gmail.com> Change-Id: Ib87fdbe7a0be7dc961af3500fe9ea4589a127f9f
49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "dbus/string_util.h"
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#include <stddef.h>
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#include "base/strings/string_util.h"
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namespace dbus {
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// This implementation is based upon D-Bus Specification Version 0.19.
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bool IsValidObjectPath(const std::string& value) {
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// A valid object path begins with '/'.
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if (!base::StartsWith(value, "/", base::CompareCase::SENSITIVE))
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return false;
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// Elements are pieces delimited by '/'. For instance, "org", "chromium",
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// "Foo" are elements of "/org/chromium/Foo".
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int element_length = 0;
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for (size_t i = 1; i < value.size(); ++i) {
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const char c = value[i];
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if (c == '/') {
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// No element may be the empty string.
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if (element_length == 0)
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return false;
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element_length = 0;
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} else {
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// Each element must only contain "[A-Z][a-z][0-9]_".
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const bool is_valid_character =
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('A' <= c && c <= 'Z') || ('a' <= c && c <= 'z') ||
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('0' <= c && c <= '9') || c == '_';
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if (!is_valid_character)
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return false;
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element_length++;
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}
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}
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// A trailing '/' character is not allowed unless the path is the root path.
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if (value.size() > 1 &&
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base::EndsWith(value, "/", base::CompareCase::SENSITIVE))
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return false;
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return true;
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}
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} // namespace dbus
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