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// Copyright 2019 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 <string>
#include <utility>
#include "content/browser/sms/sms_parser.h"
#include "base/optional.h"
#include "net/base/url_util.h"
#include "third_party/re2/src/re2/re2.h"
#include "url/gurl.h"
#include "url/origin.h"
namespace content {
// SMS one-time-passcode format:
// https://wicg.github.io/sms-one-time-codes/#parsing
constexpr char kOtpFormatRegex[] = "(?:^|\\s)@([a-zA-Z0-9.-]+) #([^#\\s]+)";
SmsParser::Result::Result(const url::Origin& origin,
const std::string& one_time_code)
: origin(std::move(origin)), one_time_code(one_time_code) {}
SmsParser::Result::~Result() {}
// static
base::Optional<SmsParser::Result> SmsParser::Parse(base::StringPiece sms) {
std::string url, otp;
if (!re2::RE2::PartialMatch(sms.as_string(), kOtpFormatRegex, &url, &otp))
return base::nullopt;
std::string host, scheme;
int port;
if (!net::ParseHostAndPort(url, &host, &port))
return base::nullopt;
// Expect localhost to always be http.
if (net::HostStringIsLocalhost(base::StringPiece(host))) {
scheme = "http://";
} else {
scheme = "https://";
}
GURL gurl(scheme + url);
if (!gurl.is_valid())
return base::nullopt;
return Result(url::Origin::Create(gurl), otp);
}
} // namespace content
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