src/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     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                                            UTF8ToUTF16(key),
 557                                            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                                  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                                     ASCIIToUTF16(ProcessRawBytes(&ret->keyID)));
 620     rv += '\n';
 621   }
 622
 623   if (ret->authCertIssuer) {
 624     rv += l10n_util::GetStringFUTF8(
 625         IDS_CERT_ISSUER_FORMAT,
 626         UTF8ToUTF16(ProcessGeneralNames(arena.get(), ret->authCertIssuer)));
 627     rv += '\n';
 628   }
 629
 630   if (ret->authCertSerialNumber.len > 0) {
 631     rv += l10n_util::GetStringFUTF8(
 632         IDS_CERT_SERIAL_NUMBER_FORMAT,
 633         ASCIIToUTF16(ProcessRawBytes(&ret->authCertSerialNumber)));
 634     rv += '\n';
 635   }
 636
 637   return rv;
 638 }
 639
 640 std::string ProcessUserNotice(SECItem* der_notice) {
 641   CERTUserNotice* notice = CERT_DecodeUserNotice(der_notice);
 642   if (!notice)
 643     return ProcessRawBytes(der_notice);
 644
 645   std::string rv;
 646   if (notice->noticeReference.organization.len != 0) {
 647     switch (notice->noticeReference.organization.type) {
 648       case siAsciiString:
 649       case siVisibleString:
 650       case siUTF8String:
 651         rv += std::string(
 652             reinterpret_cast<char*>(notice->noticeReference.organization.data),
 653             notice->noticeReference.organization.len);
 654         break;
 655       case siBMPString:
 656         rv += ProcessBMPString(&notice->noticeReference.organization);
 657         break;
 658       default:
 659         break;
 660     }
 661     rv += " - ";
 662     SECItem** itemList = notice->noticeReference.noticeNumbers;
 663     while (*itemList) {
 664       unsigned long number;
 665       if (SEC_ASN1DecodeInteger(*itemList, &number) == SECSuccess) {
 666         if (itemList != notice->noticeReference.noticeNumbers)
 667           rv += ", ";
 668         rv += '#';
 669         rv += UTF16ToUTF8(base::UintToString16(number));
 670       }
 671       itemList++;
 672     }
 673   }
 674   if (notice->displayText.len != 0) {
 675     rv += "\n    ";
 676     switch (notice->displayText.type) {
 677       case siAsciiString:
 678       case siVisibleString:
 679       case siUTF8String:
 680         rv += std::string(reinterpret_cast<char*>(notice->displayText.data),
 681                           notice->displayText.len);
 682         break;
 683       case siBMPString:
 684         rv += ProcessBMPString(&notice->displayText);
 685         break;
 686       default:
 687         break;
 688     }
 689   }
 690
 691   CERT_DestroyUserNotice(notice);
 692   return rv;
 693 }
 694
 695 std::string ProcessCertificatePolicies(SECItem* extension_data) {
 696   std::string rv;
 697
 698   CERTCertificatePolicies* policies = CERT_DecodeCertificatePoliciesExtension(
 699       extension_data);
 700   if (!policies)
 701     return l10n_util::GetStringUTF8(IDS_CERT_EXTENSION_DUMP_ERROR);
 702
 703   CERTPolicyInfo** policyInfos = policies->policyInfos;
 704   while (*policyInfos) {
 705     CERTPolicyInfo* policyInfo = *policyInfos++;
 706     std::string key = GetOIDText(&policyInfo->policyID);
 707
 708     // If we have policy qualifiers, display the oid text
 709     // with a ':', otherwise just put the oid text and a newline.
 710     // TODO(mattm): Add extra note if this is the ev oid?  (It's a bit
 711     // complicated, since we don't want to do the EV check synchronously.)
 712     if (policyInfo->policyQualifiers) {
 713       rv += l10n_util::GetStringFUTF8(IDS_CERT_MULTILINE_INFO_START_FORMAT,
 714                                       UTF8ToUTF16(key));
 715     } else {
 716       rv += key;
 717     }
 718     rv += '\n';
 719
 720     if (policyInfo->policyQualifiers) {
 721       // Add all qualifiers on separate lines, indented.
 722       CERTPolicyQualifier** policyQualifiers = policyInfo->policyQualifiers;
 723       while (*policyQualifiers != NULL) {
 724         rv += "  ";
 725
 726         CERTPolicyQualifier* policyQualifier = *policyQualifiers++;
 727         rv += l10n_util::GetStringFUTF8(
 728             IDS_CERT_MULTILINE_INFO_START_FORMAT,
 729             UTF8ToUTF16(GetOIDText(&policyQualifier->qualifierID)));
 730         switch(policyQualifier->oid) {
 731           case SEC_OID_PKIX_CPS_POINTER_QUALIFIER:
 732             rv += "    ";
 733             /* The CPS pointer ought to be the cPSuri alternative
 734                of the Qualifier choice. */
 735             rv += ProcessIA5String(&policyQualifier->qualifierValue);
 736             break;
 737           case SEC_OID_PKIX_USER_NOTICE_QUALIFIER:
 738             rv += ProcessUserNotice(&policyQualifier->qualifierValue);
 739             break;
 740           default:
 741             rv += ProcessRawBytes(&policyQualifier->qualifierValue);
 742             break;
 743         }
 744         rv += '\n';
 745       }
 746     }
 747   }
 748
 749   CERT_DestroyCertificatePoliciesExtension(policies);
 750   return rv;
 751 }
 752
 753 std::string ProcessCrlDistPoints(SECItem* extension_data) {
 754   std::string rv;
 755   CERTCrlDistributionPoints* crldp;
 756   CRLDistributionPoint** points;
 757   CRLDistributionPoint* point;
 758   bool comma;
 759
 760   static const struct {
 761     int reason;
 762     int string_id;
 763   } reason_string_map[] = {
 764     {RF_UNUSED, IDS_CERT_REVOCATION_REASON_UNUSED},
 765     {RF_KEY_COMPROMISE, IDS_CERT_REVOCATION_REASON_KEY_COMPROMISE},
 766     {RF_CA_COMPROMISE, IDS_CERT_REVOCATION_REASON_CA_COMPROMISE},
 767     {RF_AFFILIATION_CHANGED, IDS_CERT_REVOCATION_REASON_AFFILIATION_CHANGED},
 768     {RF_SUPERSEDED, IDS_CERT_REVOCATION_REASON_SUPERSEDED},
 769     {RF_CESSATION_OF_OPERATION,
 770      IDS_CERT_REVOCATION_REASON_CESSATION_OF_OPERATION},
 771     {RF_CERTIFICATE_HOLD, IDS_CERT_REVOCATION_REASON_CERTIFICATE_HOLD},
 772   };
 773
 774   crypto::ScopedPLArenaPool arena(PORT_NewArena(DER_DEFAULT_CHUNKSIZE));
 775   CHECK(arena.get());
 776
 777   crldp = CERT_DecodeCRLDistributionPoints(arena.get(), extension_data);
 778   if (!crldp || !crldp->distPoints) {
 779     rv = l10n_util::GetStringUTF8(IDS_CERT_EXTENSION_DUMP_ERROR);
 780     return rv;
 781   }
 782
 783   for (points = crldp->distPoints; *points; ++points) {
 784     point = *points;
 785     switch (point->distPointType) {
 786       case generalName:
 787         // generalName is a typo in upstream NSS; fullName is actually a
 788         // GeneralNames (SEQUENCE OF GeneralName). See Mozilla Bug #615100.
 789         rv += ProcessGeneralNames(arena.get(), point->distPoint.fullName);
 790         break;
 791       case relativeDistinguishedName:
 792         rv += ProcessRDN(&point->distPoint.relativeName);
 793         break;
 794     }
 795     if (point->reasons.len) {
 796       rv += ' ';
 797       comma = false;
 798       for (size_t i = 0; i < ARRAYSIZE_UNSAFE(reason_string_map); ++i) {
 799         if (point->reasons.data[0] & reason_string_map[i].reason) {
 800           if (comma)
 801             rv += ',';
 802           rv += l10n_util::GetStringUTF8(reason_string_map[i].string_id);
 803           comma = true;
 804         }
 805       }
 806       rv += '\n';
 807     }
 808     if (point->crlIssuer) {
 809       rv += l10n_util::GetStringFUTF8(
 810           IDS_CERT_ISSUER_FORMAT,
 811           UTF8ToUTF16(ProcessGeneralNames(arena.get(), point->crlIssuer)));
 812     }
 813   }
 814   return rv;
 815 }
 816
 817 std::string ProcessAuthInfoAccess(SECItem* extension_data) {
 818   std::string rv;
 819   CERTAuthInfoAccess** aia;
 820   CERTAuthInfoAccess* desc;
 821   crypto::ScopedPLArenaPool arena(PORT_NewArena(DER_DEFAULT_CHUNKSIZE));
 822   CHECK(arena.get());
 823
 824   aia = CERT_DecodeAuthInfoAccessExtension(arena.get(), extension_data);
 825   if (aia == NULL)
 826     return l10n_util::GetStringUTF8(IDS_CERT_EXTENSION_DUMP_ERROR);
 827
 828   while (*aia != NULL) {
 829     desc = *aia++;
 830     string16 location_str = UTF8ToUTF16(ProcessGeneralName(arena.get(),
 831                                                            desc->location));
 832     switch (SECOID_FindOIDTag(&desc->method)) {
 833     case SEC_OID_PKIX_OCSP:
 834       rv += l10n_util::GetStringFUTF8(IDS_CERT_OCSP_RESPONDER_FORMAT,
 835                                       location_str);
 836       break;
 837     case SEC_OID_PKIX_CA_ISSUERS:
 838       rv += l10n_util::GetStringFUTF8(IDS_CERT_CA_ISSUERS_FORMAT,
 839                                       location_str);
 840       break;
 841     default:
 842       rv += l10n_util::GetStringFUTF8(IDS_CERT_UNKNOWN_OID_INFO_FORMAT,
 843                                       UTF8ToUTF16(GetOIDText(&desc->method)),
 844                                       location_str);
 845       break;
 846     }
 847   }
 848   return rv;
 849 }
 850
 851 std::string ProcessIA5String(SECItem* extension_data) {
 852   SECItem item;
 853   if (SEC_ASN1DecodeItem(NULL, &item, SEC_ASN1_GET(SEC_IA5StringTemplate),
 854                          extension_data) != SECSuccess)
 855     return l10n_util::GetStringUTF8(IDS_CERT_EXTENSION_DUMP_ERROR);
 856   std::string rv((char*)item.data, item.len);  // ASCII data.
 857   PORT_Free(item.data);
 858   return rv;
 859 }
 860
 861 std::string ProcessBMPString(SECItem* extension_data) {
 862   std::string rv;
 863   SECItem item;
 864   crypto::ScopedPLArenaPool arena(PORT_NewArena(DER_DEFAULT_CHUNKSIZE));
 865   CHECK(arena.get());
 866
 867   if (SEC_ASN1DecodeItem(arena.get(), &item,
 868                          SEC_ASN1_GET(SEC_BMPStringTemplate), extension_data) ==
 869       SECSuccess)
 870     rv = BMPtoUTF8(arena.get(), item.data, item.len);
 871   return rv;
 872 }
 873
 874 struct MaskIdPair {
 875   unsigned int mask;
 876   int string_id;
 877 };
 878
 879 static std::string ProcessBitField(SECItem* bitfield,
 880                                    const MaskIdPair* string_map,
 881                                    size_t len,
 882                                    char separator) {
 883   unsigned int bits = 0;
 884   std::string rv;
 885   for (size_t i = 0; i * 8 < bitfield->len && i < sizeof(bits); ++i)
 886     bits |= bitfield->data[i] << (i * 8);
 887   for (size_t i = 0; i < len; ++i) {
 888     if (bits & string_map[i].mask) {
 889       if (!rv.empty())
 890         rv += separator;
 891       rv += l10n_util::GetStringUTF8(string_map[i].string_id);
 892     }
 893   }
 894   return rv;
 895 }
 896
 897 static std::string ProcessBitStringExtension(SECItem* extension_data,
 898                                              const MaskIdPair* string_map,
 899                                              size_t len,
 900                                              char separator) {
 901   SECItem decoded;
 902   decoded.type = siBuffer;
 903   decoded.data = NULL;
 904   decoded.len  = 0;
 905   if (SEC_ASN1DecodeItem(NULL, &decoded, SEC_ASN1_GET(SEC_BitStringTemplate),
 906                          extension_data) != SECSuccess)
 907     return l10n_util::GetStringUTF8(IDS_CERT_EXTENSION_DUMP_ERROR);
 908   std::string rv = ProcessBitField(&decoded, string_map, len, separator);
 909   PORT_Free(decoded.data);
 910   return rv;
 911 }
 912
 913 std::string ProcessNSCertTypeExtension(SECItem* extension_data) {
 914   static const MaskIdPair usage_string_map[] = {
 915     {NS_CERT_TYPE_SSL_CLIENT, IDS_CERT_USAGE_SSL_CLIENT},
 916     {NS_CERT_TYPE_SSL_SERVER, IDS_CERT_USAGE_SSL_SERVER},
 917     {NS_CERT_TYPE_EMAIL, IDS_CERT_EXT_NS_CERT_TYPE_EMAIL},
 918     {NS_CERT_TYPE_OBJECT_SIGNING, IDS_CERT_USAGE_OBJECT_SIGNER},
 919     {NS_CERT_TYPE_SSL_CA, IDS_CERT_USAGE_SSL_CA},
 920     {NS_CERT_TYPE_EMAIL_CA, IDS_CERT_EXT_NS_CERT_TYPE_EMAIL_CA},
 921     {NS_CERT_TYPE_OBJECT_SIGNING_CA, IDS_CERT_USAGE_OBJECT_SIGNER},
 922   };
 923   return ProcessBitStringExtension(extension_data, usage_string_map,
 924                                    ARRAYSIZE_UNSAFE(usage_string_map), '\n');
 925 }
 926
 927 static const MaskIdPair key_usage_string_map[] = {
 928   {KU_DIGITAL_SIGNATURE, IDS_CERT_X509_KEY_USAGE_SIGNING},
 929   {KU_NON_REPUDIATION, IDS_CERT_X509_KEY_USAGE_NONREP},
 930   {KU_KEY_ENCIPHERMENT, IDS_CERT_X509_KEY_USAGE_ENCIPHERMENT},
 931   {KU_DATA_ENCIPHERMENT, IDS_CERT_X509_KEY_USAGE_DATA_ENCIPHERMENT},
 932   {KU_KEY_AGREEMENT, IDS_CERT_X509_KEY_USAGE_KEY_AGREEMENT},
 933   {KU_KEY_CERT_SIGN, IDS_CERT_X509_KEY_USAGE_CERT_SIGNER},
 934   {KU_CRL_SIGN, IDS_CERT_X509_KEY_USAGE_CRL_SIGNER},
 935   {KU_ENCIPHER_ONLY, IDS_CERT_X509_KEY_USAGE_ENCIPHER_ONLY},
 936   // NSS is missing a flag for dechiperOnly, see:
 937   // https://bugzilla.mozilla.org/show_bug.cgi?id=549952
 938 };
 939
 940 std::string ProcessKeyUsageBitString(SECItem* bitstring, char sep) {
 941   return ProcessBitField(bitstring, key_usage_string_map,
 942                          arraysize(key_usage_string_map), sep);
 943 }
 944
 945 std::string ProcessKeyUsageExtension(SECItem* extension_data) {
 946   return ProcessBitStringExtension(extension_data, key_usage_string_map,
 947                                    arraysize(key_usage_string_map), '\n');
 948 }
 949
 950 std::string ProcessExtKeyUsage(SECItem* extension_data) {
 951   std::string rv;
 952   CERTOidSequence* extension_key_usage = NULL;
 953   extension_key_usage = CERT_DecodeOidSequence(extension_data);
 954   if (extension_key_usage == NULL)
 955     return l10n_util::GetStringUTF8(IDS_CERT_EXTENSION_DUMP_ERROR);
 956
 957   SECItem** oids;
 958   SECItem* oid;
 959   for (oids = extension_key_usage->oids; oids != NULL && *oids != NULL;
 960        ++oids) {
 961     oid = *oids;
 962     std::string oid_dump = DumpOidString(oid);
 963     std::string oid_text = GetOIDText(oid);
 964
 965     // If oid is one we recognize, oid_text will have a text description of the OID,
 966     // which we display along with the oid_dump.  If we don't recognize the OID,
 967     // GetOIDText will return the same value as DumpOidString, so just display
 968     // the OID alone.
 969     if (oid_dump == oid_text)
 970       rv += oid_dump;
 971     else
 972       rv += l10n_util::GetStringFUTF8(IDS_CERT_EXT_KEY_USAGE_FORMAT,
 973                                       UTF8ToUTF16(oid_text),
 974                                       UTF8ToUTF16(oid_dump));
 975     rv += '\n';
 976   }
 977   CERT_DestroyOidSequence(extension_key_usage);
 978   return rv;
 979 }
 980
 981 std::string ProcessExtensionData(SECOidTag oid_tag, SECItem* extension_data) {
 982   // This (and its sub-functions) are based on the same-named functions in
 983   // security/manager/ssl/src/nsNSSCertHelper.cpp.
 984   switch (oid_tag) {
 985     case SEC_OID_NS_CERT_EXT_CERT_TYPE:
 986       return ProcessNSCertTypeExtension(extension_data);
 987     case SEC_OID_X509_KEY_USAGE:
 988       return ProcessKeyUsageExtension(extension_data);
 989     case SEC_OID_X509_BASIC_CONSTRAINTS:
 990       return ProcessBasicConstraints(extension_data);
 991     case SEC_OID_X509_EXT_KEY_USAGE:
 992       return ProcessExtKeyUsage(extension_data);
 993     case SEC_OID_X509_ISSUER_ALT_NAME:
 994     case SEC_OID_X509_SUBJECT_ALT_NAME:
 995       return ProcessAltName(extension_data);
 996     case SEC_OID_X509_SUBJECT_KEY_ID:
 997       return ProcessSubjectKeyId(extension_data);
 998     case SEC_OID_X509_AUTH_KEY_ID:
 999       return ProcessAuthKeyId(extension_data);
1000     case SEC_OID_X509_CERTIFICATE_POLICIES:
1001       return ProcessCertificatePolicies(extension_data);
1002     case SEC_OID_X509_CRL_DIST_POINTS:
1003       return ProcessCrlDistPoints(extension_data);
1004     case SEC_OID_X509_AUTH_INFO_ACCESS:
1005       return ProcessAuthInfoAccess(extension_data);
1006     case SEC_OID_NS_CERT_EXT_BASE_URL:
1007     case SEC_OID_NS_CERT_EXT_REVOCATION_URL:
1008     case SEC_OID_NS_CERT_EXT_CA_REVOCATION_URL:
1009     case SEC_OID_NS_CERT_EXT_CA_CERT_URL:
1010     case SEC_OID_NS_CERT_EXT_CERT_RENEWAL_URL:
1011     case SEC_OID_NS_CERT_EXT_CA_POLICY_URL:
1012     case SEC_OID_NS_CERT_EXT_HOMEPAGE_URL:
1013     case SEC_OID_NS_CERT_EXT_COMMENT:
1014     case SEC_OID_NS_CERT_EXT_SSL_SERVER_NAME:
1015     case SEC_OID_NS_CERT_EXT_LOST_PASSWORD_URL:
1016       return ProcessIA5String(extension_data);
1017     default:
1018       if (oid_tag == ms_cert_ext_certtype)
1019         return ProcessBMPString(extension_data);
1020       return ProcessRawBytes(extension_data);
1021   }
1022 }
1023
1024 std::string ProcessSubjectPublicKeyInfo(CERTSubjectPublicKeyInfo* spki) {
1025   std::string rv;
1026   SECKEYPublicKey* key = SECKEY_ExtractPublicKey(spki);
1027   if (key) {
1028     switch (key->keyType) {
1029       case rsaKey: {
1030         rv = l10n_util::GetStringFUTF8(
1031             IDS_CERT_RSA_PUBLIC_KEY_DUMP_FORMAT,
1032             base::UintToString16(key->u.rsa.modulus.len * 8),
1033             UTF8ToUTF16(ProcessRawBytes(&key->u.rsa.modulus)),
1034             base::UintToString16(key->u.rsa.publicExponent.len * 8),
1035             UTF8ToUTF16(ProcessRawBytes(&key->u.rsa.publicExponent)));
1036         break;
1037       }
1038       default:
1039         rv = x509_certificate_model::ProcessRawBits(
1040             spki->subjectPublicKey.data, spki->subjectPublicKey.len);
1041         break;
1042     }
1043     SECKEY_DestroyPublicKey(key);
1044   }
1045   return rv;
1046 }
1047
1048 net::CertType GetCertType(CERTCertificate *cert) {
1049   CERTCertTrust trust = {0};
1050   CERT_GetCertTrust(cert, &trust);
1051
1052   unsigned all_flags = trust.sslFlags | trust.emailFlags |
1053       trust.objectSigningFlags;
1054
1055   if (cert->nickname && (all_flags & CERTDB_USER))
1056     return net::USER_CERT;
1057   if ((all_flags & CERTDB_VALID_CA) || CERT_IsCACert(cert, NULL))
1058     return net::CA_CERT;
1059   // TODO(mattm): http://crbug.com/128633.
1060   if (trust.sslFlags & CERTDB_TERMINAL_RECORD)
1061     return net::SERVER_CERT;
1062   return net::OTHER_CERT;
1063 }
1064
1065 }  // namespace mozilla_security_manager