gaia_auth_util.cc revision 7dbb3d5cf0c15f500944d211057644d6a2f37371 
1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "google_apis/gaia/gaia_auth_util.h"
6
7#include <vector>
8
9#include "base/logging.h"
10#include "base/strings/string_split.h"
11#include "base/strings/string_util.h"
12#include "google_apis/gaia/gaia_urls.h"
13#include "url/gurl.h"
14
15namespace gaia {
16
17namespace {
18const char kGmailDomain[] = "gmail.com";
19}
20
21std::string CanonicalizeEmail(const std::string& email_address) {
22  std::vector<std::string> parts;
23  char at = '@';
24  base::SplitString(email_address, at, &parts);
25  if (parts.size() != 2U)
26    NOTREACHED() << "expecting exactly one @, but got " << parts.size();
27  else if (parts[1] == kGmailDomain)  // only strip '.' for gmail accounts.
28    RemoveChars(parts[0], ".", &parts[0]);
29  std::string new_email = StringToLowerASCII(JoinString(parts, at));
30  VLOG(1) << "Canonicalized " << email_address << " to " << new_email;
31  return new_email;
32}
33
34std::string CanonicalizeDomain(const std::string& domain) {
35  // Canonicalization of domain names means lower-casing them. Make sure to
36  // update this function in sync with Canonicalize if this ever changes.
37  return StringToLowerASCII(domain);
38}
39
40std::string SanitizeEmail(const std::string& email_address) {
41  std::string sanitized(email_address);
42
43  // Apply a default domain if necessary.
44  if (sanitized.find('@') == std::string::npos) {
45    sanitized += '@';
46    sanitized += kGmailDomain;
47  }
48
49  return sanitized;
50}
51
52bool AreEmailsSame(const std::string& email1, const std::string& email2) {
53  return gaia::CanonicalizeEmail(gaia::SanitizeEmail(email1)) ==
54      gaia::CanonicalizeEmail(gaia::SanitizeEmail(email2));
55}
56
57std::string ExtractDomainName(const std::string& email_address) {
58  // First canonicalize which will also verify we have proper domain part.
59  std::string email = CanonicalizeEmail(email_address);
60  size_t separator_pos = email.find('@');
61  if (separator_pos != email.npos && separator_pos < email.length() - 1)
62    return email.substr(separator_pos + 1);
63  else
64    NOTREACHED() << "Not a proper email address: " << email;
65  return std::string();
66}
67
68bool IsGaiaSignonRealm(const GURL& url) {
69  if (!url.SchemeIsSecure())
70    return false;
71
72  return url == GaiaUrls::GetInstance()->gaia_url();
73}
74
75}  // namespace gaia
76