chrome/third_party/mozilla_security_manager/nsNSSCertHelper.cpp

   1 /* ***** BEGIN LICENSE BLOCK *****
   2  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   3  *
   4  * The contents of this file are subject to the Mozilla Public License Version
   5  * 1.1 (the "License"); you may not use this file except in compliance with
   6  * the License. You may obtain a copy of the License at
   7  * http://www.mozilla.org/MPL/
   8  *
   9  * Software distributed under the License is distributed on an "AS IS" basis,
  10  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  11  * for the specific language governing rights and limitations under the
  12  * License.
  13  *
  14  * The Original Code is the Netscape security libraries.
  15  *
  16  * The Initial Developer of the Original Code is
  17  * Netscape Communications Corporation.
  18  * Portions created by the Initial Developer are Copyright (C) 2000
  19  * the Initial Developer. All Rights Reserved.
  20  *
  21  * Contributor(s):
  22  *   Ian McGreer <mcgreer@netscape.com>
  23  *   Javier Delgadillo <javi@netscape.com>
  24  *   John Gardiner Myers <jgmyers@speakeasy.net>
  25  *   Martin v. Loewis <martin@v.loewis.de>
  26  *
  27  * Alternatively, the contents of this file may be used under the terms of
  28  * either the GNU General Public License Version 2 or later (the "GPL"), or
  29  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  30  * in which case the provisions of the GPL or the LGPL are applicable instead
  31  * of those above. If you wish to allow use of your version of this file only
  32  * under the terms of either the GPL or the LGPL, and not to allow others to
  33  * use your version of this file under the terms of the MPL, indicate your
  34  * decision by deleting the provisions above and replace them with the notice
  35  * and other provisions required by the GPL or the LGPL. If you do not delete
  36  * the provisions above, a recipient may use your version of this file under
  37  * the terms of any one of the MPL, the GPL or the LGPL.
  38  *
  39  * ***** END LICENSE BLOCK ***** */
  40
  41 #include "chrome/third_party/mozilla_security_manager/nsNSSCertHelper.h"
  42
  43 #include <certdb.h>
  44 #include <keyhi.h>
  45 #include <prprf.h>
  46 #include <unicode/uidna.h>
  47
  48 #include "base/i18n/number_formatting.h"
  49 #include "base/strings/string_number_conversions.h"
  50 #include "base/strings/stringprintf.h"
  51 #include "base/strings/utf_string_conversions.h"
  52 #include "chrome/common/net/x509_certificate_model.h"
  53 #include "crypto/scoped_nss_types.h"
  54 #include "grit/generated_resources.h"
  55 #include "net/base/ip_endpoint.h"
  56 #include "net/base/net_util.h"
  57 #include "ui/base/l10n/l10n_util.h"
  58
  59 #if !defined(CERTDB_TERMINAL_RECORD)
  60 /* NSS 3.13 renames CERTDB_VALID_PEER to CERTDB_TERMINAL_RECORD
  61  * and marks CERTDB_VALID_PEER as deprecated.
  62  * If we're using an older version, rename it ourselves.
  63  */
  64 #define CERTDB_TERMINAL_RECORD CERTDB_VALID_PEER
  65 #endif
  66
  67 namespace {
  68
  69 std::string BMPtoUTF8(PRArenaPool* arena, unsigned char* data,
  70                       unsigned int len) {
  71   if (len % 2 != 0)
  72     return l10n_util::GetStringUTF8(IDS_CERT_EXTENSION_DUMP_ERROR);
  73
  74   unsigned int utf8_val_len = len * 3 + 1;
  75   std::vector<unsigned char> utf8_val(utf8_val_len);
  76   if (!PORT_UCS2_UTF8Conversion(PR_FALSE, data, len,
  77                                 &utf8_val.front(), utf8_val_len, &utf8_val_len))
  78     return l10n_util::GetStringUTF8(IDS_CERT_EXTENSION_DUMP_ERROR);
  79   return std::string(reinterpret_cast<char*>(&utf8_val.front()), utf8_val_len);
  80 }
  81
  82 SECOidTag RegisterDynamicOid(const char* oid_string) {
  83   SECOidTag rv = SEC_OID_UNKNOWN;
  84   unsigned char buffer[1024];
  85   SECOidData od;
  86   od.oid.type = siDEROID;
  87   od.oid.data = buffer;
  88   od.oid.len = sizeof(buffer);
  89
  90   if (SEC_StringToOID(NULL, &od.oid, oid_string, 0) == SECSuccess) {
  91     od.offset = SEC_OID_UNKNOWN;
  92     od.mechanism = CKM_INVALID_MECHANISM;
  93     od.supportedExtension = INVALID_CERT_EXTENSION;
  94     od.desc = oid_string;
  95
  96     rv = SECOID_AddEntry(&od);
  97   }
  98   DCHECK_NE(rv, SEC_OID_UNKNOWN) << oid_string;
  99   return rv;
 100 }
 101
 102 // Format a SECItem as a space separated string, with 16 bytes on each line.
 103 std::string ProcessRawBytes(SECItem* data) {
 104   return x509_certificate_model::ProcessRawBytes(data->data, data->len);
 105 }
 106
 107 }  // namespace
 108
 109 namespace mozilla_security_manager {
 110
 111 SECOidTag ms_cert_ext_certtype = SEC_OID_UNKNOWN;
 112 SECOidTag ms_certsrv_ca_version = SEC_OID_UNKNOWN;
 113 SECOidTag ms_nt_principal_name = SEC_OID_UNKNOWN;
 114 SECOidTag ms_ntds_replication = SEC_OID_UNKNOWN;
 115 SECOidTag eku_ms_individual_code_signing = SEC_OID_UNKNOWN;
 116 SECOidTag eku_ms_commercial_code_signing = SEC_OID_UNKNOWN;
 117 SECOidTag eku_ms_trust_list_signing = SEC_OID_UNKNOWN;
 118 SECOidTag eku_ms_time_stamping = SEC_OID_UNKNOWN;
 119 SECOidTag eku_ms_server_gated_crypto = SEC_OID_UNKNOWN;
 120 SECOidTag eku_ms_encrypting_file_system = SEC_OID_UNKNOWN;
 121 SECOidTag eku_ms_file_recovery = SEC_OID_UNKNOWN;
 122 SECOidTag eku_ms_windows_hardware_driver_verification = SEC_OID_UNKNOWN;
 123 SECOidTag eku_ms_qualified_subordination = SEC_OID_UNKNOWN;
 124 SECOidTag eku_ms_key_recovery = SEC_OID_UNKNOWN;
 125 SECOidTag eku_ms_document_signing = SEC_OID_UNKNOWN;
 126 SECOidTag eku_ms_lifetime_signing = SEC_OID_UNKNOWN;
 127 SECOidTag eku_ms_smart_card_logon = SEC_OID_UNKNOWN;
 128 SECOidTag eku_ms_key_recovery_agent = SEC_OID_UNKNOWN;
 129 SECOidTag eku_netscape_international_step_up = SEC_OID_UNKNOWN;
 130 SECOidTag cert_attribute_business_category = SEC_OID_UNKNOWN;
 131 SECOidTag cert_attribute_ev_incorporation_country = SEC_OID_UNKNOWN;
 132
 133 void RegisterDynamicOids() {
 134   if (ms_cert_ext_certtype != SEC_OID_UNKNOWN)
 135     return;
 136
 137   ms_cert_ext_certtype = RegisterDynamicOid("1.3.6.1.4.1.311.20.2");
 138   ms_certsrv_ca_version = RegisterDynamicOid("1.3.6.1.4.1.311.21.1");
 139   ms_nt_principal_name = RegisterDynamicOid("1.3.6.1.4.1.311.20.2.3");
 140   ms_ntds_replication = RegisterDynamicOid("1.3.6.1.4.1.311.25.1");
 141
 142   eku_ms_individual_code_signing = RegisterDynamicOid("1.3.6.1.4.1.311.2.1.21");
 143   eku_ms_commercial_code_signing = RegisterDynamicOid("1.3.6.1.4.1.311.2.1.22");
 144   eku_ms_trust_list_signing = RegisterDynamicOid("1.3.6.1.4.1.311.10.3.1");
 145   eku_ms_time_stamping = RegisterDynamicOid("1.3.6.1.4.1.311.10.3.2");
 146   eku_ms_server_gated_crypto = RegisterDynamicOid("1.3.6.1.4.1.311.10.3.3");
 147   eku_ms_encrypting_file_system = RegisterDynamicOid("1.3.6.1.4.1.311.10.3.4");
 148   eku_ms_file_recovery = RegisterDynamicOid("1.3.6.1.4.1.311.10.3.4.1");
 149   eku_ms_windows_hardware_driver_verification = RegisterDynamicOid(
 150       "1.3.6.1.4.1.311.10.3.5");
 151   eku_ms_qualified_subordination = RegisterDynamicOid(
 152       "1.3.6.1.4.1.311.10.3.10");
 153   eku_ms_key_recovery = RegisterDynamicOid("1.3.6.1.4.1.311.10.3.11");
 154   eku_ms_document_signing = RegisterDynamicOid("1.3.6.1.4.1.311.10.3.12");
 155   eku_ms_lifetime_signing = RegisterDynamicOid("1.3.6.1.4.1.311.10.3.13");
 156   eku_ms_smart_card_logon = RegisterDynamicOid("1.3.6.1.4.1.311.20.2.2");
 157   eku_ms_key_recovery_agent = RegisterDynamicOid("1.3.6.1.4.1.311.21.6");
 158   eku_netscape_international_step_up = RegisterDynamicOid(
 159       "2.16.840.1.113730.4.1");
 160
 161   // These two OIDs will be built-in as SEC_OID_BUSINESS_CATEGORY and
 162   // SEC_OID_EV_INCORPORATION_COUNTRY starting in NSS 3.13.  Until then,
 163   // we need to add them dynamically.
 164   cert_attribute_business_category = RegisterDynamicOid("2.5.4.15");
 165   cert_attribute_ev_incorporation_country = RegisterDynamicOid(
 166       "1.3.6.1.4.1.311.60.2.1.3");
 167 }
 168
 169 std::string DumpOidString(SECItem* oid) {
 170   char* pr_string = CERT_GetOidString(oid);
 171   if (pr_string) {
 172     std::string rv = pr_string;
 173     PR_smprintf_free(pr_string);
 174     return rv;
 175   }
 176
 177   return ProcessRawBytes(oid);
 178 }
 179
 180 std::string GetOIDText(SECItem* oid) {
 181   int string_id;
 182   SECOidTag oid_tag = SECOID_FindOIDTag(oid);
 183   switch (oid_tag) {
 184     case SEC_OID_AVA_COMMON_NAME:
 185       string_id = IDS_CERT_OID_AVA_COMMON_NAME;
 186       break;
 187     case SEC_OID_AVA_STATE_OR_PROVINCE:
 188       string_id = IDS_CERT_OID_AVA_STATE_OR_PROVINCE;
 189       break;
 190     case SEC_OID_AVA_ORGANIZATION_NAME:
 191       string_id = IDS_CERT_OID_AVA_ORGANIZATION_NAME;
 192       break;
 193     case SEC_OID_AVA_ORGANIZATIONAL_UNIT_NAME:
 194       string_id = IDS_CERT_OID_AVA_ORGANIZATIONAL_UNIT_NAME;
 195       break;
 196     case SEC_OID_AVA_DN_QUALIFIER:
 197       string_id = IDS_CERT_OID_AVA_DN_QUALIFIER;
 198       break;
 199     case SEC_OID_AVA_COUNTRY_NAME:
 200       string_id = IDS_CERT_OID_AVA_COUNTRY_NAME;
 201       break;
 202     case SEC_OID_AVA_SERIAL_NUMBER:
 203       string_id = IDS_CERT_OID_AVA_SERIAL_NUMBER;
 204       break;
 205     case SEC_OID_AVA_LOCALITY:
 206       string_id = IDS_CERT_OID_AVA_LOCALITY;
 207       break;
 208     case SEC_OID_AVA_DC:
 209       string_id = IDS_CERT_OID_AVA_DC;
 210       break;
 211     case SEC_OID_RFC1274_MAIL:
 212       string_id = IDS_CERT_OID_RFC1274_MAIL;
 213       break;
 214     case SEC_OID_RFC1274_UID:
 215       string_id = IDS_CERT_OID_RFC1274_UID;
 216       break;
 217     case SEC_OID_PKCS9_EMAIL_ADDRESS:
 218       string_id = IDS_CERT_OID_PKCS9_EMAIL_ADDRESS;
 219       break;
 220     case SEC_OID_PKCS1_RSA_ENCRYPTION:
 221       string_id = IDS_CERT_OID_PKCS1_RSA_ENCRYPTION;
 222       break;
 223     case SEC_OID_PKCS1_MD2_WITH_RSA_ENCRYPTION:
 224       string_id = IDS_CERT_OID_PKCS1_MD2_WITH_RSA_ENCRYPTION;
 225       break;
 226     case SEC_OID_PKCS1_MD4_WITH_RSA_ENCRYPTION:
 227       string_id = IDS_CERT_OID_PKCS1_MD4_WITH_RSA_ENCRYPTION;
 228       break;
 229     case SEC_OID_PKCS1_MD5_WITH_RSA_ENCRYPTION:
 230       string_id = IDS_CERT_OID_PKCS1_MD5_WITH_RSA_ENCRYPTION;
 231       break;
 232     case SEC_OID_PKCS1_SHA1_WITH_RSA_ENCRYPTION:
 233       string_id = IDS_CERT_OID_PKCS1_SHA1_WITH_RSA_ENCRYPTION;
 234       break;
 235     case SEC_OID_PKCS1_SHA256_WITH_RSA_ENCRYPTION:
 236       string_id = IDS_CERT_OID_PKCS1_SHA256_WITH_RSA_ENCRYPTION;
 237       break;
 238     case SEC_OID_PKCS1_SHA384_WITH_RSA_ENCRYPTION:
 239       string_id = IDS_CERT_OID_PKCS1_SHA384_WITH_RSA_ENCRYPTION;
 240       break;
 241     case SEC_OID_PKCS1_SHA512_WITH_RSA_ENCRYPTION:
 242       string_id = IDS_CERT_OID_PKCS1_SHA512_WITH_RSA_ENCRYPTION;
 243       break;
 244     case SEC_OID_NS_CERT_EXT_CERT_TYPE:
 245       string_id = IDS_CERT_EXT_NS_CERT_TYPE;
 246       break;
 247     case SEC_OID_NS_CERT_EXT_BASE_URL:
 248       string_id = IDS_CERT_EXT_NS_CERT_BASE_URL;
 249       break;
 250     case SEC_OID_NS_CERT_EXT_REVOCATION_URL:
 251       string_id = IDS_CERT_EXT_NS_CERT_REVOCATION_URL;
 252       break;
 253     case SEC_OID_NS_CERT_EXT_CA_REVOCATION_URL:
 254       string_id = IDS_CERT_EXT_NS_CA_REVOCATION_URL;
 255       break;
 256     case SEC_OID_NS_CERT_EXT_CERT_RENEWAL_URL:
 257       string_id = IDS_CERT_EXT_NS_CERT_RENEWAL_URL;
 258       break;
 259     case SEC_OID_NS_CERT_EXT_CA_POLICY_URL:
 260       string_id = IDS_CERT_EXT_NS_CA_POLICY_URL;
 261       break;
 262     case SEC_OID_NS_CERT_EXT_SSL_SERVER_NAME:
 263       string_id = IDS_CERT_EXT_NS_SSL_SERVER_NAME;
 264       break;
 265     case SEC_OID_NS_CERT_EXT_COMMENT:
 266       string_id = IDS_CERT_EXT_NS_COMMENT;
 267       break;
 268     case SEC_OID_NS_CERT_EXT_LOST_PASSWORD_URL:
 269       string_id = IDS_CERT_EXT_NS_LOST_PASSWORD_URL;
 270       break;
 271     case SEC_OID_NS_CERT_EXT_CERT_RENEWAL_TIME:
 272       string_id = IDS_CERT_EXT_NS_CERT_RENEWAL_TIME;
 273       break;
 274     case SEC_OID_X509_SUBJECT_DIRECTORY_ATTR:
 275       string_id = IDS_CERT_X509_SUBJECT_DIRECTORY_ATTR;
 276       break;
 277     case SEC_OID_X509_SUBJECT_KEY_ID:
 278       string_id = IDS_CERT_X509_SUBJECT_KEYID;
 279       break;
 280     case SEC_OID_X509_KEY_USAGE:
 281       string_id = IDS_CERT_X509_KEY_USAGE;
 282       break;
 283     case SEC_OID_X509_SUBJECT_ALT_NAME:
 284       string_id = IDS_CERT_X509_SUBJECT_ALT_NAME;
 285       break;
 286     case SEC_OID_X509_ISSUER_ALT_NAME:
 287       string_id = IDS_CERT_X509_ISSUER_ALT_NAME;
 288       break;
 289     case SEC_OID_X509_BASIC_CONSTRAINTS:
 290       string_id = IDS_CERT_X509_BASIC_CONSTRAINTS;
 291       break;
 292     case SEC_OID_X509_NAME_CONSTRAINTS:
 293       string_id = IDS_CERT_X509_NAME_CONSTRAINTS;
 294       break;
 295     case SEC_OID_X509_CRL_DIST_POINTS:
 296       string_id = IDS_CERT_X509_CRL_DIST_POINTS;
 297       break;
 298     case SEC_OID_X509_CERTIFICATE_POLICIES:
 299       string_id = IDS_CERT_X509_CERT_POLICIES;
 300       break;
 301     case SEC_OID_X509_POLICY_MAPPINGS:
 302       string_id = IDS_CERT_X509_POLICY_MAPPINGS;
 303       break;
 304     case SEC_OID_X509_POLICY_CONSTRAINTS:
 305       string_id = IDS_CERT_X509_POLICY_CONSTRAINTS;
 306       break;
 307     case SEC_OID_X509_AUTH_KEY_ID:
 308       string_id = IDS_CERT_X509_AUTH_KEYID;
 309       break;
 310     case SEC_OID_X509_EXT_KEY_USAGE:
 311       string_id = IDS_CERT_X509_EXT_KEY_USAGE;
 312       break;
 313     case SEC_OID_X509_AUTH_INFO_ACCESS:
 314       string_id = IDS_CERT_X509_AUTH_INFO_ACCESS;
 315       break;
 316     case SEC_OID_EXT_KEY_USAGE_SERVER_AUTH:
 317       string_id = IDS_CERT_EKU_TLS_WEB_SERVER_AUTHENTICATION;
 318       break;
 319     case SEC_OID_EXT_KEY_USAGE_CLIENT_AUTH:
 320       string_id = IDS_CERT_EKU_TLS_WEB_CLIENT_AUTHENTICATION;
 321       break;
 322     case SEC_OID_EXT_KEY_USAGE_CODE_SIGN:
 323       string_id = IDS_CERT_EKU_CODE_SIGNING;
 324       break;
 325     case SEC_OID_EXT_KEY_USAGE_EMAIL_PROTECT:
 326       string_id = IDS_CERT_EKU_EMAIL_PROTECTION;
 327       break;
 328     case SEC_OID_EXT_KEY_USAGE_TIME_STAMP:
 329       string_id = IDS_CERT_EKU_TIME_STAMPING;
 330       break;
 331     case SEC_OID_OCSP_RESPONDER:
 332       string_id = IDS_CERT_EKU_OCSP_SIGNING;
 333       break;
 334     case SEC_OID_PKIX_CPS_POINTER_QUALIFIER:
 335       string_id = IDS_CERT_PKIX_CPS_POINTER_QUALIFIER;
 336       break;
 337     case SEC_OID_PKIX_USER_NOTICE_QUALIFIER:
 338       string_id = IDS_CERT_PKIX_USER_NOTICE_QUALIFIER;
 339       break;
 340     case SEC_OID_UNKNOWN:
 341       string_id = -1;
 342       break;
 343
 344     // There are a billionty other OIDs we could add here.  I tried to get the
 345     // important ones...
 346     default:
 347       if (oid_tag == ms_cert_ext_certtype)
 348         string_id = IDS_CERT_EXT_MS_CERT_TYPE;
 349       else if (oid_tag == ms_certsrv_ca_version)
 350         string_id = IDS_CERT_EXT_MS_CA_VERSION;
 351       else if (oid_tag == ms_nt_principal_name)
 352         string_id = IDS_CERT_EXT_MS_NT_PRINCIPAL_NAME;
 353       else if (oid_tag == ms_ntds_replication)
 354         string_id = IDS_CERT_EXT_MS_NTDS_REPLICATION;
 355       else if (oid_tag == eku_ms_individual_code_signing)
 356         string_id = IDS_CERT_EKU_MS_INDIVIDUAL_CODE_SIGNING;
 357       else if (oid_tag == eku_ms_commercial_code_signing)
 358         string_id = IDS_CERT_EKU_MS_COMMERCIAL_CODE_SIGNING;
 359       else if (oid_tag == eku_ms_trust_list_signing)
 360         string_id = IDS_CERT_EKU_MS_TRUST_LIST_SIGNING;
 361       else if (oid_tag == eku_ms_time_stamping)
 362         string_id = IDS_CERT_EKU_MS_TIME_STAMPING;
 363       else if (oid_tag == eku_ms_server_gated_crypto)
 364         string_id = IDS_CERT_EKU_MS_SERVER_GATED_CRYPTO;
 365       else if (oid_tag == eku_ms_encrypting_file_system)
 366         string_id = IDS_CERT_EKU_MS_ENCRYPTING_FILE_SYSTEM;
 367       else if (oid_tag == eku_ms_file_recovery)
 368         string_id = IDS_CERT_EKU_MS_FILE_RECOVERY;
 369       else if (oid_tag == eku_ms_windows_hardware_driver_verification)
 370         string_id = IDS_CERT_EKU_MS_WINDOWS_HARDWARE_DRIVER_VERIFICATION;
 371       else if (oid_tag == eku_ms_qualified_subordination)
 372         string_id = IDS_CERT_EKU_MS_QUALIFIED_SUBORDINATION;
 373       else if (oid_tag == eku_ms_key_recovery)
 374         string_id = IDS_CERT_EKU_MS_KEY_RECOVERY;
 375       else if (oid_tag == eku_ms_document_signing)
 376         string_id = IDS_CERT_EKU_MS_DOCUMENT_SIGNING;
 377       else if (oid_tag == eku_ms_lifetime_signing)
 378         string_id = IDS_CERT_EKU_MS_LIFETIME_SIGNING;
 379       else if (oid_tag == eku_ms_smart_card_logon)
 380         string_id = IDS_CERT_EKU_MS_SMART_CARD_LOGON;
 381       else if (oid_tag == eku_ms_key_recovery_agent)
 382         string_id = IDS_CERT_EKU_MS_KEY_RECOVERY_AGENT;
 383       else if (oid_tag == eku_netscape_international_step_up)
 384         string_id = IDS_CERT_EKU_NETSCAPE_INTERNATIONAL_STEP_UP;
 385       else if (oid_tag == cert_attribute_business_category)
 386         string_id = IDS_CERT_OID_BUSINESS_CATEGORY;
 387       else if (oid_tag == cert_attribute_ev_incorporation_country)
 388         string_id = IDS_CERT_OID_EV_INCORPORATION_COUNTRY;
 389       else
 390         string_id = -1;
 391       break;
 392   }
 393   if (string_id >= 0)
 394     return l10n_util::GetStringUTF8(string_id);
 395
 396   return DumpOidString(oid);
 397 }
 398
 399 // Get a display string from a Relative Distinguished Name.
 400 std::string ProcessRDN(CERTRDN* rdn) {
 401   std::string rv;
 402
 403   CERTAVA** avas = rdn->avas;
 404   for (size_t i = 0; avas[i] != NULL; ++i) {
 405     rv += GetOIDText(&avas[i]->type);
 406     SECItem* decode_item = CERT_DecodeAVAValue(&avas[i]->value);
 407     if (decode_item) {
 408       // TODO(mattm): Pass decode_item to CERT_RFC1485_EscapeAndQuote.
 409       rv += " = ";
 410       std::string value(reinterpret_cast<char*>(decode_item->data),
 411                         decode_item->len);
 412       if (SECOID_FindOIDTag(&avas[i]->type) == SEC_OID_AVA_COMMON_NAME)
 413         value = x509_certificate_model::ProcessIDN(value);
 414       rv += value;
 415       SECITEM_FreeItem(decode_item, PR_TRUE);
 416     }
 417     rv += '\n';
 418   }
 419
 420   return rv;
 421 }
 422
 423 std::string ProcessName(CERTName* name) {
 424   std::string rv;
 425   CERTRDN** last_rdn;
 426
 427   // Find last non-NULL rdn.
 428   for (last_rdn = name->rdns; last_rdn[0]; last_rdn++) {}
 429   last_rdn--;
 430
 431   for (CERTRDN** rdn = last_rdn; rdn >= name->rdns; rdn--)
 432     rv += ProcessRDN(*rdn);
 433   return rv;
 434 }
 435
 436 std::string ProcessBasicConstraints(SECItem* extension_data) {
 437   CERTBasicConstraints value;
 438   value.pathLenConstraint = -1;
 439   if (CERT_DecodeBasicConstraintValue(&value, extension_data) != SECSuccess)
 440     return ProcessRawBytes(extension_data);
 441
 442   std::string rv;
 443   if (value.isCA)
 444     rv = l10n_util::GetStringUTF8(IDS_CERT_X509_BASIC_CONSTRAINT_IS_CA);
 445   else
 446     rv = l10n_util::GetStringUTF8(IDS_CERT_X509_BASIC_CONSTRAINT_IS_NOT_CA);
 447   rv += '\n';
 448   if (value.pathLenConstraint != -1) {
 449     base::string16 depth;
 450     if (value.pathLenConstraint == CERT_UNLIMITED_PATH_CONSTRAINT) {
 451       depth = l10n_util::GetStringUTF16(
 452           IDS_CERT_X509_BASIC_CONSTRAINT_PATH_LEN_UNLIMITED);
 453     } else {
 454       depth = base::FormatNumber(value.pathLenConstraint);
 455     }
 456     rv += l10n_util::GetStringFUTF8(IDS_CERT_X509_BASIC_CONSTRAINT_PATH_LEN,
 457                                     depth);
 458   }
 459   return rv;
 460 }
 461
 462 std::string ProcessGeneralName(PRArenaPool* arena,
 463                                CERTGeneralName* current) {
 464   DCHECK(current);
 465
 466   std::string key;
 467   std::string value;
 468
 469   switch (current->type) {
 470     case certOtherName: {
 471       key = GetOIDText(&current->name.OthName.oid);
 472       SECOidTag oid_tag = SECOID_FindOIDTag(&current->name.OthName.oid);
 473       if (oid_tag == ms_nt_principal_name) {
 474         // The type of this name is apparently nowhere explicitly
 475         // documented. However, in the generated templates, it is always
 476         // UTF-8. So try to decode this as UTF-8; if that fails, dump the
 477         // raw data.
 478         SECItem decoded;
 479         if (SEC_ASN1DecodeItem(arena, &decoded,
 480                                SEC_ASN1_GET(SEC_UTF8StringTemplate),
 481                                &current->name.OthName.name) == SECSuccess) {
 482           value = std::string(reinterpret_cast<char*>(decoded.data),
 483                               decoded.len);
 484         } else {
 485           value = ProcessRawBytes(&current->name.OthName.name);
 486         }
 487         break;
 488       } else if (oid_tag == ms_ntds_replication) {
 489         // This should be a 16-byte GUID.
 490         SECItem guid;
 491         if (SEC_ASN1DecodeItem(arena, &guid,
 492                                SEC_ASN1_GET(SEC_OctetStringTemplate),
 493                                &current->name.OthName.name) == SECSuccess &&
 494             guid.len == 16) {
 495           unsigned char* d = guid.data;
 496           base::SStringPrintf(
 497               &value,
 498               "{%.2x%.2x%.2x%.2x-%.2x%.2x-%.2x%.2x-"
 499               "%.2x%.2x-%.2x%.2x%.2x%.2x%.2x%.2x}",
 500               d[3], d[2], d[1], d[0], d[5], d[4], d[7], d[6],
 501               d[8], d[9], d[10], d[11], d[12], d[13], d[14], d[15]);
 502         } else {
 503           value = ProcessRawBytes(&current->name.OthName.name);
 504         }
 505       } else {
 506         value = ProcessRawBytes(&current->name.OthName.name);
 507       }
 508       break;
 509     }
 510     case certRFC822Name:
 511       key = l10n_util::GetStringUTF8(IDS_CERT_GENERAL_NAME_RFC822_NAME);
 512       value = std::string(reinterpret_cast<char*>(current->name.other.data),
 513                           current->name.other.len);
 514       break;
 515     case certDNSName:
 516       key = l10n_util::GetStringUTF8(IDS_CERT_GENERAL_NAME_DNS_NAME);
 517       value = std::string(reinterpret_cast<char*>(current->name.other.data),
 518                           current->name.other.len);
 519       value = x509_certificate_model::ProcessIDN(value);
 520       break;
 521     case certX400Address:
 522       key = l10n_util::GetStringUTF8(IDS_CERT_GENERAL_NAME_X400_ADDRESS);
 523       value = ProcessRawBytes(&current->name.other);
 524       break;
 525     case certDirectoryName:
 526       key = l10n_util::GetStringUTF8(IDS_CERT_GENERAL_NAME_DIRECTORY_NAME);
 527       value = ProcessName(&current->name.directoryName);
 528       break;
 529     case certEDIPartyName:
 530       key = l10n_util::GetStringUTF8(IDS_CERT_GENERAL_NAME_EDI_PARTY_NAME);
 531       value = ProcessRawBytes(&current->name.other);
 532       break;
 533     case certURI:
 534       key = l10n_util::GetStringUTF8(IDS_CERT_GENERAL_NAME_URI);
 535       value = std::string(reinterpret_cast<char*>(current->name.other.data),
 536                           current->name.other.len);
 537       break;
 538     case certIPAddress: {
 539       key = l10n_util::GetStringUTF8(IDS_CERT_GENERAL_NAME_IP_ADDRESS);
 540       net::IPAddressNumber ip(
 541           current->name.other.data,
 542           current->name.other.data + current->name.other.len);
 543       value = net::IPEndPoint(ip, 0).ToStringWithoutPort();
 544       if (value.empty()) {
 545         // Invalid IP address.
 546         value = ProcessRawBytes(&current->name.other);
 547       }
 548       break;
 549     }
 550     case certRegisterID:
 551       key = l10n_util::GetStringUTF8(IDS_CERT_GENERAL_NAME_REGISTERED_ID);
 552       value = DumpOidString(&current->name.other);
 553       break;
 554   }
 555   std::string rv(l10n_util::GetStringFUTF8(IDS_CERT_UNKNOWN_OID_INFO_FORMAT,
 556                                            base::UTF8ToUTF16(key),
 557                                            base::UTF8ToUTF16(value)));
 558   rv += '\n';
 559   return rv;
 560 }
 561
 562 std::string ProcessGeneralNames(PRArenaPool* arena,
 563                                 CERTGeneralName* name_list) {
 564   std::string rv;
 565   CERTGeneralName* current = name_list;
 566
 567   do {
 568     std::string text = ProcessGeneralName(arena, current);
 569     if (text.empty())
 570       break;
 571     rv += text;
 572     current = CERT_GetNextGeneralName(current);
 573   } while (current != name_list);
 574   return rv;
 575 }
 576
 577 std::string ProcessAltName(SECItem* extension_data) {
 578   CERTGeneralName* name_list;
 579
 580   crypto::ScopedPLArenaPool arena(PORT_NewArena(DER_DEFAULT_CHUNKSIZE));
 581   CHECK(arena.get());
 582
 583   name_list = CERT_DecodeAltNameExtension(arena.get(), extension_data);
 584   if (!name_list)
 585     return l10n_util::GetStringUTF8(IDS_CERT_EXTENSION_DUMP_ERROR);
 586
 587   return ProcessGeneralNames(arena.get(), name_list);
 588 }
 589
 590 std::string ProcessSubjectKeyId(SECItem* extension_data) {
 591   SECItem decoded;
 592   crypto::ScopedPLArenaPool arena(PORT_NewArena(DER_DEFAULT_CHUNKSIZE));
 593   CHECK(arena.get());
 594
 595   std::string rv;
 596   if (SEC_QuickDERDecodeItem(arena.get(), &decoded,
 597                              SEC_ASN1_GET(SEC_OctetStringTemplate),
 598                              extension_data) != SECSuccess) {
 599     rv = l10n_util::GetStringUTF8(IDS_CERT_EXTENSION_DUMP_ERROR);
 600     return rv;
 601   }
 602
 603   rv = l10n_util::GetStringFUTF8(IDS_CERT_KEYID_FORMAT,
 604                                  base::ASCIIToUTF16(ProcessRawBytes(&decoded)));
 605   return rv;
 606 }
 607
 608 std::string ProcessAuthKeyId(SECItem* extension_data) {
 609   CERTAuthKeyID* ret;
 610   crypto::ScopedPLArenaPool arena(PORT_NewArena(DER_DEFAULT_CHUNKSIZE));
 611   std::string rv;
 612
 613   CHECK(arena.get());
 614
 615   ret = CERT_DecodeAuthKeyID(arena.get(), extension_data);
 616
 617   if (ret->keyID.len > 0) {
 618     rv += l10n_util::GetStringFUTF8(IDS_CERT_KEYID_FORMAT,
 619                                     base::ASCIIToUTF16(
 620                                         ProcessRawBytes(&ret->keyID)));
 621     rv += '\n';
 622   }
 623
 624   if (ret->authCertIssuer) {
 625     rv += l10n_util::GetStringFUTF8(
 626         IDS_CERT_ISSUER_FORMAT,
 627         base::UTF8ToUTF16(
 628             ProcessGeneralNames(arena.get(), ret->authCertIssuer)));
 629     rv += '\n';
 630   }
 631
 632   if (ret->authCertSerialNumber.len > 0) {
 633     rv += l10n_util::GetStringFUTF8(
 634         IDS_CERT_SERIAL_NUMBER_FORMAT,
 635         base::ASCIIToUTF16(ProcessRawBytes(&ret->authCertSerialNumber)));
 636     rv += '\n';
 637   }
 638
 639   return rv;
 640 }
 641
 642 std::string ProcessUserNotice(SECItem* der_notice) {
 643   CERTUserNotice* notice = CERT_DecodeUserNotice(der_notice);
 644   if (!notice)
 645     return ProcessRawBytes(der_notice);
 646
 647   std::string rv;
 648   if (notice->noticeReference.organization.len != 0) {
 649     switch (notice->noticeReference.organization.type) {
 650       case siAsciiString:
 651       case siVisibleString:
 652       case siUTF8String:
 653         rv += std::string(
 654             reinterpret_cast<char*>(notice->noticeReference.organization.data),
 655             notice->noticeReference.organization.len);
 656         break;
 657       case siBMPString:
 658         rv += ProcessBMPString(&notice->noticeReference.organization);
 659         break;
 660       default:
 661         break;
 662     }
 663     rv += " - ";
 664     SECItem** itemList = notice->noticeReference.noticeNumbers;
 665     while (*itemList) {
 666       unsigned long number;
 667       if (SEC_ASN1DecodeInteger(*itemList, &number) == SECSuccess) {
 668         if (itemList != notice->noticeReference.noticeNumbers)
 669           rv += ", ";
 670         rv += '#';
 671         rv += base::UTF16ToUTF8(base::UintToString16(number));
 672       }
 673       itemList++;
 674     }
 675   }
 676   if (notice->displayText.len != 0) {
 677     rv += "\n    ";
 678     switch (notice->displayText.type) {
 679       case siAsciiString:
 680       case siVisibleString:
 681       case siUTF8String:
 682         rv += std::string(reinterpret_cast<char*>(notice->displayText.data),
 683                           notice->displayText.len);
 684         break;
 685       case siBMPString:
 686         rv += ProcessBMPString(&notice->displayText);
 687         break;
 688       default:
 689         break;
 690     }
 691   }
 692
 693   CERT_DestroyUserNotice(notice);
 694   return rv;
 695 }
 696
 697 std::string ProcessCertificatePolicies(SECItem* extension_data) {
 698   std::string rv;
 699
 700   CERTCertificatePolicies* policies = CERT_DecodeCertificatePoliciesExtension(
 701       extension_data);
 702   if (!policies)
 703     return l10n_util::GetStringUTF8(IDS_CERT_EXTENSION_DUMP_ERROR);
 704
 705   CERTPolicyInfo** policyInfos = policies->policyInfos;
 706   while (*policyInfos) {
 707     CERTPolicyInfo* policyInfo = *policyInfos++;
 708     std::string key = GetOIDText(&policyInfo->policyID);
 709
 710     // If we have policy qualifiers, display the oid text
 711     // with a ':', otherwise just put the oid text and a newline.
 712     // TODO(mattm): Add extra note if this is the ev oid?  (It's a bit
 713     // complicated, since we don't want to do the EV check synchronously.)
 714     if (policyInfo->policyQualifiers) {
 715       rv += l10n_util::GetStringFUTF8(IDS_CERT_MULTILINE_INFO_START_FORMAT,
 716                                       base::UTF8ToUTF16(key));
 717     } else {
 718       rv += key;
 719     }
 720     rv += '\n';
 721
 722     if (policyInfo->policyQualifiers) {
 723       // Add all qualifiers on separate lines, indented.
 724       CERTPolicyQualifier** policyQualifiers = policyInfo->policyQualifiers;
 725       while (*policyQualifiers != NULL) {
 726         rv += "  ";
 727
 728         CERTPolicyQualifier* policyQualifier = *policyQualifiers++;
 729         rv += l10n_util::GetStringFUTF8(
 730             IDS_CERT_MULTILINE_INFO_START_FORMAT,
 731             base::UTF8ToUTF16(GetOIDText(&policyQualifier->qualifierID)));
 732         switch(policyQualifier->oid) {
 733           case SEC_OID_PKIX_CPS_POINTER_QUALIFIER:
 734             rv += "    ";
 735             /* The CPS pointer ought to be the cPSuri alternative
 736                of the Qualifier choice. */
 737             rv += ProcessIA5String(&policyQualifier->qualifierValue);
 738             break;
 739           case SEC_OID_PKIX_USER_NOTICE_QUALIFIER:
 740             rv += ProcessUserNotice(&policyQualifier->qualifierValue);
 741             break;
 742           default:
 743             rv += ProcessRawBytes(&policyQualifier->qualifierValue);
 744             break;
 745         }
 746         rv += '\n';
 747       }
 748     }
 749   }
 750
 751   CERT_DestroyCertificatePoliciesExtension(policies);
 752   return rv;
 753 }
 754
 755 std::string ProcessCrlDistPoints(SECItem* extension_data) {
 756   std::string rv;
 757   CERTCrlDistributionPoints* crldp;
 758   CRLDistributionPoint** points;
 759   CRLDistributionPoint* point;
 760   bool comma;
 761
 762   static const struct {
 763     int reason;
 764     int string_id;
 765   } reason_string_map[] = {
 766     {RF_UNUSED, IDS_CERT_REVOCATION_REASON_UNUSED},
 767     {RF_KEY_COMPROMISE, IDS_CERT_REVOCATION_REASON_KEY_COMPROMISE},
 768     {RF_CA_COMPROMISE, IDS_CERT_REVOCATION_REASON_CA_COMPROMISE},
 769     {RF_AFFILIATION_CHANGED, IDS_CERT_REVOCATION_REASON_AFFILIATION_CHANGED},
 770     {RF_SUPERSEDED, IDS_CERT_REVOCATION_REASON_SUPERSEDED},
 771     {RF_CESSATION_OF_OPERATION,
 772      IDS_CERT_REVOCATION_REASON_CESSATION_OF_OPERATION},
 773     {RF_CERTIFICATE_HOLD, IDS_CERT_REVOCATION_REASON_CERTIFICATE_HOLD},
 774   };
 775
 776   crypto::ScopedPLArenaPool arena(PORT_NewArena(DER_DEFAULT_CHUNKSIZE));
 777   CHECK(arena.get());
 778
 779   crldp = CERT_DecodeCRLDistributionPoints(arena.get(), extension_data);
 780   if (!crldp || !crldp->distPoints) {
 781     rv = l10n_util::GetStringUTF8(IDS_CERT_EXTENSION_DUMP_ERROR);
 782     return rv;
 783   }
 784
 785   for (points = crldp->distPoints; *points; ++points) {
 786     point = *points;
 787     switch (point->distPointType) {
 788       case generalName:
 789         // generalName is a typo in upstream NSS; fullName is actually a
 790         // GeneralNames (SEQUENCE OF GeneralName). See Mozilla Bug #615100.
 791         rv += ProcessGeneralNames(arena.get(), point->distPoint.fullName);
 792         break;
 793       case relativeDistinguishedName:
 794         rv += ProcessRDN(&point->distPoint.relativeName);
 795         break;
 796     }
 797     if (point->reasons.len) {
 798       rv += ' ';
 799       comma = false;
 800       for (size_t i = 0; i < ARRAYSIZE_UNSAFE(reason_string_map); ++i) {
 801         if (point->reasons.data[0] & reason_string_map[i].reason) {
 802           if (comma)
 803             rv += ',';
 804           rv += l10n_util::GetStringUTF8(reason_string_map[i].string_id);
 805           comma = true;
 806         }
 807       }
 808       rv += '\n';
 809     }
 810     if (point->crlIssuer) {
 811       rv += l10n_util::GetStringFUTF8(
 812           IDS_CERT_ISSUER_FORMAT,
 813           base::UTF8ToUTF16(
 814               ProcessGeneralNames(arena.get(), point->crlIssuer)));
 815     }
 816   }
 817   return rv;
 818 }
 819
 820 std::string ProcessAuthInfoAccess(SECItem* extension_data) {
 821   std::string rv;
 822   CERTAuthInfoAccess** aia;
 823   CERTAuthInfoAccess* desc;
 824   crypto::ScopedPLArenaPool arena(PORT_NewArena(DER_DEFAULT_CHUNKSIZE));
 825   CHECK(arena.get());
 826
 827   aia = CERT_DecodeAuthInfoAccessExtension(arena.get(), extension_data);
 828   if (aia == NULL)
 829     return l10n_util::GetStringUTF8(IDS_CERT_EXTENSION_DUMP_ERROR);
 830
 831   while (*aia != NULL) {
 832     desc = *aia++;
 833     base::string16 location_str =
 834         base::UTF8ToUTF16(ProcessGeneralName(arena.get(), desc->location));
 835     switch (SECOID_FindOIDTag(&desc->method)) {
 836     case SEC_OID_PKIX_OCSP:
 837       rv += l10n_util::GetStringFUTF8(IDS_CERT_OCSP_RESPONDER_FORMAT,
 838                                       location_str);
 839       break;
 840     case SEC_OID_PKIX_CA_ISSUERS:
 841       rv += l10n_util::GetStringFUTF8(IDS_CERT_CA_ISSUERS_FORMAT,
 842                                       location_str);
 843       break;
 844     default:
 845       rv += l10n_util::GetStringFUTF8(IDS_CERT_UNKNOWN_OID_INFO_FORMAT,
 846                                       base::UTF8ToUTF16(
 847                                           GetOIDText(&desc->method)),
 848                                       location_str);
 849       break;
 850     }
 851   }
 852   return rv;
 853 }
 854
 855 std::string ProcessIA5String(SECItem* extension_data) {
 856   SECItem item;
 857   if (SEC_ASN1DecodeItem(NULL, &item, SEC_ASN1_GET(SEC_IA5StringTemplate),
 858                          extension_data) != SECSuccess)
 859     return l10n_util::GetStringUTF8(IDS_CERT_EXTENSION_DUMP_ERROR);
 860   std::string rv((char*)item.data, item.len);  // ASCII data.
 861   PORT_Free(item.data);
 862   return rv;
 863 }
 864
 865 std::string ProcessBMPString(SECItem* extension_data) {
 866   std::string rv;
 867   SECItem item;
 868   crypto::ScopedPLArenaPool arena(PORT_NewArena(DER_DEFAULT_CHUNKSIZE));
 869   CHECK(arena.get());
 870
 871   if (SEC_ASN1DecodeItem(arena.get(), &item,
 872                          SEC_ASN1_GET(SEC_BMPStringTemplate), extension_data) ==
 873       SECSuccess)
 874     rv = BMPtoUTF8(arena.get(), item.data, item.len);
 875   return rv;
 876 }
 877
 878 struct MaskIdPair {
 879   unsigned int mask;
 880   int string_id;
 881 };
 882
 883 static std::string ProcessBitField(SECItem* bitfield,
 884                                    const MaskIdPair* string_map,
 885                                    size_t len,
 886                                    char separator) {
 887   unsigned int bits = 0;
 888   std::string rv;
 889   for (size_t i = 0; i * 8 < bitfield->len && i < sizeof(bits); ++i)
 890     bits |= bitfield->data[i] << (i * 8);
 891   for (size_t i = 0; i < len; ++i) {
 892     if (bits & string_map[i].mask) {
 893       if (!rv.empty())
 894         rv += separator;
 895       rv += l10n_util::GetStringUTF8(string_map[i].string_id);
 896     }
 897   }
 898   return rv;
 899 }
 900
 901 static std::string ProcessBitStringExtension(SECItem* extension_data,
 902                                              const MaskIdPair* string_map,
 903                                              size_t len,
 904                                              char separator) {
 905   SECItem decoded;
 906   decoded.type = siBuffer;
 907   decoded.data = NULL;
 908   decoded.len  = 0;
 909   if (SEC_ASN1DecodeItem(NULL, &decoded, SEC_ASN1_GET(SEC_BitStringTemplate),
 910                          extension_data) != SECSuccess)
 911     return l10n_util::GetStringUTF8(IDS_CERT_EXTENSION_DUMP_ERROR);
 912   std::string rv = ProcessBitField(&decoded, string_map, len, separator);
 913   PORT_Free(decoded.data);
 914   return rv;
 915 }
 916
 917 std::string ProcessNSCertTypeExtension(SECItem* extension_data) {
 918   static const MaskIdPair usage_string_map[] = {
 919     {NS_CERT_TYPE_SSL_CLIENT, IDS_CERT_USAGE_SSL_CLIENT},
 920     {NS_CERT_TYPE_SSL_SERVER, IDS_CERT_USAGE_SSL_SERVER},
 921     {NS_CERT_TYPE_EMAIL, IDS_CERT_EXT_NS_CERT_TYPE_EMAIL},
 922     {NS_CERT_TYPE_OBJECT_SIGNING, IDS_CERT_USAGE_OBJECT_SIGNER},
 923     {NS_CERT_TYPE_SSL_CA, IDS_CERT_USAGE_SSL_CA},
 924     {NS_CERT_TYPE_EMAIL_CA, IDS_CERT_EXT_NS_CERT_TYPE_EMAIL_CA},
 925     {NS_CERT_TYPE_OBJECT_SIGNING_CA, IDS_CERT_USAGE_OBJECT_SIGNER},
 926   };
 927   return ProcessBitStringExtension(extension_data, usage_string_map,
 928                                    ARRAYSIZE_UNSAFE(usage_string_map), '\n');
 929 }
 930
 931 static const MaskIdPair key_usage_string_map[] = {
 932   {KU_DIGITAL_SIGNATURE, IDS_CERT_X509_KEY_USAGE_SIGNING},
 933   {KU_NON_REPUDIATION, IDS_CERT_X509_KEY_USAGE_NONREP},
 934   {KU_KEY_ENCIPHERMENT, IDS_CERT_X509_KEY_USAGE_ENCIPHERMENT},
 935   {KU_DATA_ENCIPHERMENT, IDS_CERT_X509_KEY_USAGE_DATA_ENCIPHERMENT},
 936   {KU_KEY_AGREEMENT, IDS_CERT_X509_KEY_USAGE_KEY_AGREEMENT},
 937   {KU_KEY_CERT_SIGN, IDS_CERT_X509_KEY_USAGE_CERT_SIGNER},
 938   {KU_CRL_SIGN, IDS_CERT_X509_KEY_USAGE_CRL_SIGNER},
 939   {KU_ENCIPHER_ONLY, IDS_CERT_X509_KEY_USAGE_ENCIPHER_ONLY},
 940   // NSS is missing a flag for dechiperOnly, see:
 941   // https://bugzilla.mozilla.org/show_bug.cgi?id=549952
 942 };
 943
 944 std::string ProcessKeyUsageBitString(SECItem* bitstring, char sep) {
 945   return ProcessBitField(bitstring, key_usage_string_map,
 946                          arraysize(key_usage_string_map), sep);
 947 }
 948
 949 std::string ProcessKeyUsageExtension(SECItem* extension_data) {
 950   return ProcessBitStringExtension(extension_data, key_usage_string_map,
 951                                    arraysize(key_usage_string_map), '\n');
 952 }
 953
 954 std::string ProcessExtKeyUsage(SECItem* extension_data) {
 955   std::string rv;
 956   CERTOidSequence* extension_key_usage = NULL;
 957   extension_key_usage = CERT_DecodeOidSequence(extension_data);
 958   if (extension_key_usage == NULL)
 959     return l10n_util::GetStringUTF8(IDS_CERT_EXTENSION_DUMP_ERROR);
 960
 961   SECItem** oids;
 962   SECItem* oid;
 963   for (oids = extension_key_usage->oids; oids != NULL && *oids != NULL;
 964        ++oids) {
 965     oid = *oids;
 966     std::string oid_dump = DumpOidString(oid);
 967     std::string oid_text = GetOIDText(oid);
 968
 969     // If oid is one we recognize, oid_text will have a text description of the
 970     // OID, which we display along with the oid_dump.  If we don't recognize the
 971     // OID, GetOIDText will return the same value as DumpOidString, so just
 972     // display the OID alone.
 973     if (oid_dump == oid_text)
 974       rv += oid_dump;
 975     else
 976       rv += l10n_util::GetStringFUTF8(IDS_CERT_EXT_KEY_USAGE_FORMAT,
 977                                       base::UTF8ToUTF16(oid_text),
 978                                       base::UTF8ToUTF16(oid_dump));
 979     rv += '\n';
 980   }
 981   CERT_DestroyOidSequence(extension_key_usage);
 982   return rv;
 983 }
 984
 985 std::string ProcessExtensionData(SECOidTag oid_tag, SECItem* extension_data) {
 986   // This (and its sub-functions) are based on the same-named functions in
 987   // security/manager/ssl/src/nsNSSCertHelper.cpp.
 988   switch (oid_tag) {
 989     case SEC_OID_NS_CERT_EXT_CERT_TYPE:
 990       return ProcessNSCertTypeExtension(extension_data);
 991     case SEC_OID_X509_KEY_USAGE:
 992       return ProcessKeyUsageExtension(extension_data);
 993     case SEC_OID_X509_BASIC_CONSTRAINTS:
 994       return ProcessBasicConstraints(extension_data);
 995     case SEC_OID_X509_EXT_KEY_USAGE:
 996       return ProcessExtKeyUsage(extension_data);
 997     case SEC_OID_X509_ISSUER_ALT_NAME:
 998     case SEC_OID_X509_SUBJECT_ALT_NAME:
 999       return ProcessAltName(extension_data);
1000     case SEC_OID_X509_SUBJECT_KEY_ID:
1001       return ProcessSubjectKeyId(extension_data);
1002     case SEC_OID_X509_AUTH_KEY_ID:
1003       return ProcessAuthKeyId(extension_data);
1004     case SEC_OID_X509_CERTIFICATE_POLICIES:
1005       return ProcessCertificatePolicies(extension_data);
1006     case SEC_OID_X509_CRL_DIST_POINTS:
1007       return ProcessCrlDistPoints(extension_data);
1008     case SEC_OID_X509_AUTH_INFO_ACCESS:
1009       return ProcessAuthInfoAccess(extension_data);
1010     case SEC_OID_NS_CERT_EXT_BASE_URL:
1011     case SEC_OID_NS_CERT_EXT_REVOCATION_URL:
1012     case SEC_OID_NS_CERT_EXT_CA_REVOCATION_URL:
1013     case SEC_OID_NS_CERT_EXT_CA_CERT_URL:
1014     case SEC_OID_NS_CERT_EXT_CERT_RENEWAL_URL:
1015     case SEC_OID_NS_CERT_EXT_CA_POLICY_URL:
1016     case SEC_OID_NS_CERT_EXT_HOMEPAGE_URL:
1017     case SEC_OID_NS_CERT_EXT_COMMENT:
1018     case SEC_OID_NS_CERT_EXT_SSL_SERVER_NAME:
1019     case SEC_OID_NS_CERT_EXT_LOST_PASSWORD_URL:
1020       return ProcessIA5String(extension_data);
1021     default:
1022       if (oid_tag == ms_cert_ext_certtype)
1023         return ProcessBMPString(extension_data);
1024       return ProcessRawBytes(extension_data);
1025   }
1026 }
1027
1028 std::string ProcessSubjectPublicKeyInfo(CERTSubjectPublicKeyInfo* spki) {
1029   std::string rv;
1030   SECKEYPublicKey* key = SECKEY_ExtractPublicKey(spki);
1031   if (key) {
1032     switch (key->keyType) {
1033       case rsaKey: {
1034         rv = l10n_util::GetStringFUTF8(
1035             IDS_CERT_RSA_PUBLIC_KEY_DUMP_FORMAT,
1036             base::UintToString16(key->u.rsa.modulus.len * 8),
1037             base::UTF8ToUTF16(ProcessRawBytes(&key->u.rsa.modulus)),
1038             base::UintToString16(key->u.rsa.publicExponent.len * 8),
1039             base::UTF8ToUTF16(ProcessRawBytes(&key->u.rsa.publicExponent)));
1040         break;
1041       }
1042       default:
1043         rv = x509_certificate_model::ProcessRawBits(
1044             spki->subjectPublicKey.data, spki->subjectPublicKey.len);
1045         break;
1046     }
1047     SECKEY_DestroyPublicKey(key);
1048   }
1049   return rv;
1050 }
1051
1052 net::CertType GetCertType(CERTCertificate *cert) {
1053   CERTCertTrust trust = {0};
1054   CERT_GetCertTrust(cert, &trust);
1055
1056   unsigned all_flags = trust.sslFlags | trust.emailFlags |
1057       trust.objectSigningFlags;
1058
1059   if (cert->nickname && (all_flags & CERTDB_USER))
1060     return net::USER_CERT;
1061   if ((all_flags & CERTDB_VALID_CA) || CERT_IsCACert(cert, NULL))
1062     return net::CA_CERT;
1063   // TODO(mattm): http://crbug.com/128633.
1064   if (trust.sslFlags & CERTDB_TERMINAL_RECORD)
1065     return net::SERVER_CERT;
1066   return net::OTHER_CERT;
1067 }
1068
1069 }  // namespace mozilla_security_manager