google_apis/gaia/gaia_auth_util.cc

   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 "base/json/json_reader.h"
   8 #include "base/logging.h"
   9 #include "base/strings/string_split.h"
  10 #include "base/strings/string_util.h"
  11 #include "base/values.h"
  12 #include "google_apis/gaia/gaia_urls.h"
  13 #include "url/gurl.h"
  14
  15 namespace gaia {
  16
  17 namespace {
  18
  19 const char kGmailDomain[] = "gmail.com";
  20 const char kGooglemailDomain[] = "googlemail.com";
  21
  22 std::string CanonicalizeEmailImpl(const std::string& email_address,
  23                                   bool change_googlemail_to_gmail) {
  24   std::vector<std::string> parts = base::SplitString(
  25       email_address, "@", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
  26   if (parts.size() != 2U) {
  27     NOTREACHED() << "expecting exactly one @, but got "
  28                  << (parts.empty() ? 0 : parts.size() - 1)
  29                  << " : " << email_address;
  30   } else {
  31     if (change_googlemail_to_gmail && parts[1] == kGooglemailDomain)
  32       parts[1] = kGmailDomain;
  33
  34     if (parts[1] == kGmailDomain)  // only strip '.' for gmail accounts.
  35       base::RemoveChars(parts[0], ".", &parts[0]);
  36   }
  37
  38   std::string new_email = base::ToLowerASCII(base::JoinString(parts, "@"));
  39   VLOG(1) << "Canonicalized " << email_address << " to " << new_email;
  40   return new_email;
  41 }
  42
  43 }  // namespace
  44
  45
  46 ListedAccount::ListedAccount() {}
  47
  48 ListedAccount::~ListedAccount() {}
  49
  50 bool ListedAccount::operator==(const ListedAccount& other) const {
  51   // Only use ids for comparison if they've been computed by some caller, since
  52   // this class does not assign the id.
  53   if (!id.empty() && !other.id.empty()) {
  54     return id == other.id;
  55   } else {
  56     return email == other.email &&
  57            gaia_id == other.gaia_id &&
  58            valid == other.valid &&
  59            raw_email == other.raw_email;
  60   }
  61 }
  62
  63 std::string CanonicalizeEmail(const std::string& email_address) {
  64   // CanonicalizeEmail() is called to process email strings that are eventually
  65   // shown to the user, and may also be used in persisting email strings.  To
  66   // avoid breaking this existing behavior, this function will not try to
  67   // change googlemail to gmail.
  68   return CanonicalizeEmailImpl(email_address, false);
  69 }
  70
  71 std::string CanonicalizeDomain(const std::string& domain) {
  72   // Canonicalization of domain names means lower-casing them. Make sure to
  73   // update this function in sync with Canonicalize if this ever changes.
  74   return base::ToLowerASCII(domain);
  75 }
  76
  77 std::string SanitizeEmail(const std::string& email_address) {
  78   std::string sanitized(email_address);
  79
  80   // Apply a default domain if necessary.
  81   if (sanitized.find('@') == std::string::npos) {
  82     sanitized += '@';
  83     sanitized += kGmailDomain;
  84   }
  85
  86   return sanitized;
  87 }
  88
  89 bool AreEmailsSame(const std::string& email1, const std::string& email2) {
  90   return CanonicalizeEmailImpl(gaia::SanitizeEmail(email1), true) ==
  91       CanonicalizeEmailImpl(gaia::SanitizeEmail(email2), true);
  92 }
  93
  94 std::string ExtractDomainName(const std::string& email_address) {
  95   // First canonicalize which will also verify we have proper domain part.
  96   std::string email = CanonicalizeEmail(email_address);
  97   size_t separator_pos = email.find('@');
  98   if (separator_pos != email.npos && separator_pos < email.length() - 1)
  99     return email.substr(separator_pos + 1);
 100   else
 101     NOTREACHED() << "Not a proper email address: " << email;
 102   return std::string();
 103 }
 104
 105 bool IsGaiaSignonRealm(const GURL& url) {
 106   if (!url.SchemeIsCryptographic())
 107     return false;
 108
 109   return url == GaiaUrls::GetInstance()->gaia_url();
 110 }
 111
 112
 113 bool ParseListAccountsData(
 114     const std::string& data, std::vector<ListedAccount>* accounts) {
 115   accounts->clear();
 116
 117   // Parse returned data and make sure we have data.
 118   scoped_ptr<base::Value> value = base::JSONReader::Read(data);
 119   if (!value)
 120     return false;
 121
 122   base::ListValue* list;
 123   if (!value->GetAsList(&list) || list->GetSize() < 2)
 124     return false;
 125
 126   // Get list of account info.
 127   base::ListValue* account_list;
 128   if (!list->GetList(1, &account_list) || accounts == NULL)
 129     return false;
 130
 131   // Build a vector of accounts from the cookie.  Order is important: the first
 132   // account in the list is the primary account.
 133   for (size_t i = 0; i < account_list->GetSize(); ++i) {
 134     base::ListValue* account;
 135     if (account_list->GetList(i, &account) && account != NULL) {
 136       std::string email;
 137       // Canonicalize the email since ListAccounts returns "display email".
 138       if (account->GetString(3, &email) && !email.empty()) {
 139         // New version if ListAccounts indicates whether the email's session
 140         // is still valid or not.  If this value is present and false, assume
 141         // its invalid.  Otherwise assume it's valid to remain compatible with
 142         // old version.
 143         int is_email_valid = 1;
 144         if (!account->GetInteger(9, &is_email_valid))
 145           is_email_valid = 1;
 146
 147         std::string gaia_id;
 148         // ListAccounts must also return the Gaia Id.
 149         if (account->GetString(10, &gaia_id) && !gaia_id.empty()) {
 150           ListedAccount listed_account;
 151           listed_account.email = CanonicalizeEmail(email);
 152           listed_account.gaia_id = gaia_id;
 153           listed_account.valid = is_email_valid != 0;
 154           listed_account.raw_email = email;
 155           accounts->push_back(listed_account);
 156         }
 157       }
 158     }
 159   }
 160
 161   return true;
 162 }
 163
 164 }  // namespace gaia