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;
  25   char at = '@';
  26   base::SplitString(email_address, at, &parts);
  27   if (parts.size() != 2U) {
  28     NOTREACHED() << "expecting exactly one @, but got "
  29                  << (parts.empty() ? 0 : parts.size() - 1)
  30                  << " : " << email_address;
  31   } else {
  32     if (change_googlemail_to_gmail && parts[1] == kGooglemailDomain)
  33       parts[1] = kGmailDomain;
  34
  35     if (parts[1] == kGmailDomain)  // only strip '.' for gmail accounts.
  36       base::RemoveChars(parts[0], ".", &parts[0]);
  37   }
  38
  39   std::string new_email = base::StringToLowerASCII(
  40       base::JoinString(parts, "@"));
  41   VLOG(1) << "Canonicalized " << email_address << " to " << new_email;
  42   return new_email;
  43 }
  44
  45 }  // namespace
  46
  47
  48 ListedAccount::ListedAccount() {}
  49
  50 ListedAccount::~ListedAccount() {}
  51
  52 bool ListedAccount::operator==(const ListedAccount& other) const {
  53   // Only use ids for comparison if they've been computed by some caller, since
  54   // this class does not assign the id.
  55   if (!id.empty() && !other.id.empty()) {
  56     return id == other.id;
  57   } else {
  58     return email == other.email &&
  59            gaia_id == other.gaia_id &&
  60            valid == other.valid &&
  61            raw_email == other.raw_email;
  62   }
  63 }
  64
  65 std::string CanonicalizeEmail(const std::string& email_address) {
  66   // CanonicalizeEmail() is called to process email strings that are eventually
  67   // shown to the user, and may also be used in persisting email strings.  To
  68   // avoid breaking this existing behavior, this function will not try to
  69   // change googlemail to gmail.
  70   return CanonicalizeEmailImpl(email_address, false);
  71 }
  72
  73 std::string CanonicalizeDomain(const std::string& domain) {
  74   // Canonicalization of domain names means lower-casing them. Make sure to
  75   // update this function in sync with Canonicalize if this ever changes.
  76   return base::StringToLowerASCII(domain);
  77 }
  78
  79 std::string SanitizeEmail(const std::string& email_address) {
  80   std::string sanitized(email_address);
  81
  82   // Apply a default domain if necessary.
  83   if (sanitized.find('@') == std::string::npos) {
  84     sanitized += '@';
  85     sanitized += kGmailDomain;
  86   }
  87
  88   return sanitized;
  89 }
  90
  91 bool AreEmailsSame(const std::string& email1, const std::string& email2) {
  92   return CanonicalizeEmailImpl(gaia::SanitizeEmail(email1), true) ==
  93       CanonicalizeEmailImpl(gaia::SanitizeEmail(email2), true);
  94 }
  95
  96 std::string ExtractDomainName(const std::string& email_address) {
  97   // First canonicalize which will also verify we have proper domain part.
  98   std::string email = CanonicalizeEmail(email_address);
  99   size_t separator_pos = email.find('@');
 100   if (separator_pos != email.npos && separator_pos < email.length() - 1)
 101     return email.substr(separator_pos + 1);
 102   else
 103     NOTREACHED() << "Not a proper email address: " << email;
 104   return std::string();
 105 }
 106
 107 bool IsGaiaSignonRealm(const GURL& url) {
 108   if (!url.SchemeIsCryptographic())
 109     return false;
 110
 111   return url == GaiaUrls::GetInstance()->gaia_url();
 112 }
 113
 114
 115 bool ParseListAccountsData(
 116     const std::string& data, std::vector<ListedAccount>* accounts) {
 117   accounts->clear();
 118
 119   // Parse returned data and make sure we have data.
 120   scoped_ptr<base::Value> value = base::JSONReader::Read(data);
 121   if (!value)
 122     return false;
 123
 124   base::ListValue* list;
 125   if (!value->GetAsList(&list) || list->GetSize() < 2)
 126     return false;
 127
 128   // Get list of account info.
 129   base::ListValue* account_list;
 130   if (!list->GetList(1, &account_list) || accounts == NULL)
 131     return false;
 132
 133   // Build a vector of accounts from the cookie.  Order is important: the first
 134   // account in the list is the primary account.
 135   for (size_t i = 0; i < account_list->GetSize(); ++i) {
 136     base::ListValue* account;
 137     if (account_list->GetList(i, &account) && account != NULL) {
 138       std::string email;
 139       // Canonicalize the email since ListAccounts returns "display email".
 140       if (account->GetString(3, &email) && !email.empty()) {
 141         // New version if ListAccounts indicates whether the email's session
 142         // is still valid or not.  If this value is present and false, assume
 143         // its invalid.  Otherwise assume it's valid to remain compatible with
 144         // old version.
 145         int is_email_valid = 1;
 146         if (!account->GetInteger(9, &is_email_valid))
 147           is_email_valid = 1;
 148
 149         std::string gaia_id;
 150         // ListAccounts must also return the Gaia Id.
 151         if (account->GetString(10, &gaia_id) && !gaia_id.empty()) {
 152           ListedAccount listed_account;
 153           listed_account.email = CanonicalizeEmail(email);
 154           listed_account.gaia_id = gaia_id;
 155           listed_account.valid = is_email_valid != 0;
 156           listed_account.raw_email = email;
 157           accounts->push_back(listed_account);
 158         }
 159       }
 160     }
 161   }
 162
 163   return true;
 164 }
 165
 166 }  // namespace gaia