blob: e9d1633ec2c2a105596f037522aacd4728a69a03 [file] [log] [blame]
// 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 "http2/tools/random_util.h"
#include <cmath>
namespace http2 {
namespace test {
// Here "word" means something that starts with a lower-case letter, and has
// zero or more additional characters that are numbers or lower-case letters.
std::string GenerateHttp2HeaderName(size_t len, Http2Random* rng) {
absl::string_view alpha_lc = "abcdefghijklmnopqrstuvwxyz";
// If the name is short, just make it one word.
if (len < 8) {
return rng->RandStringWithAlphabet(len, alpha_lc);
// If the name is longer, ensure it starts with a word, and after that may
// have any character in alphanumdash_lc. 4 is arbitrary, could be as low
// as 1.
absl::string_view alphanumdash_lc = "abcdefghijklmnopqrstuvwxyz0123456789-";
return rng->RandStringWithAlphabet(4, alpha_lc) +
rng->RandStringWithAlphabet(len - 4, alphanumdash_lc);
std::string GenerateWebSafeString(size_t len, Http2Random* rng) {
static const char* kWebsafe64 =
return rng->RandStringWithAlphabet(len, kWebsafe64);
std::string GenerateWebSafeString(size_t lo, size_t hi, Http2Random* rng) {
return GenerateWebSafeString(rng->UniformInRange(lo, hi), rng);
} // namespace test
} // namespace http2