naiveproxy/net/third_party/http2/hpack/tools/hpack_example.cc
2018-08-14 22:19:20 +00:00

59 lines
1.6 KiB
C++

// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/third_party/http2/hpack/tools/hpack_example.h"
#include <ctype.h>
#include "base/logging.h"
#include "net/third_party/http2/platform/api/http2_string_utils.h"
#include "net/third_party/http2/tools/http2_bug_tracker.h"
namespace http2 {
namespace test {
namespace {
void HpackExampleToStringOrDie(Http2StringPiece example, Http2String* output) {
while (!example.empty()) {
const char c0 = example[0];
if (isxdigit(c0)) {
CHECK_GT(example.size(), 1u) << "Truncated hex byte?";
const char c1 = example[1];
CHECK(isxdigit(c1)) << "Found half a byte?";
*output += Http2HexDecode(example.substr(0, 2));
example.remove_prefix(2);
continue;
}
if (isspace(c0)) {
example.remove_prefix(1);
continue;
}
if (example.starts_with("|")) {
// Start of a comment. Skip to end of line or of input.
auto pos = example.find('\n');
if (pos == Http2StringPiece::npos) {
// End of input.
break;
}
example.remove_prefix(pos + 1);
continue;
}
HTTP2_BUG << "Can't parse byte " << static_cast<int>(c0) << " (0x"
<< std::hex << c0 << ")"
<< "\nExample: " << example;
}
CHECK_LT(0u, output->size()) << "Example is empty.";
}
} // namespace
Http2String HpackExampleToStringOrDie(Http2StringPiece example) {
Http2String output;
HpackExampleToStringOrDie(example, &output);
return output;
}
} // namespace test
} // namespace http2