email-core/email-core-cert.c

   1 /*
   2 *  email-service
   3 *
   4 * Copyright (c) 2012 - 2013 Samsung Electronics Co., Ltd. All rights reserved.
   5 *
   6 * Contact: Kyuho Jo <kyuho.jo@samsung.com>, Sunghyun Kwon <sh0701.kwon@samsung.com>
   7 *
   8 * Licensed under the Apache License, Version 2.0 (the "License");
   9 * you may not use this file except in compliance with the License.
  10 * You may obtain a copy of the License at
  11 *
  12 * http://www.apache.org/licenses/LICENSE-2.0
  13 *
  14 * Unless required by applicable law or agreed to in writing, software
  15 * distributed under the License is distributed on an "AS IS" BASIS,
  16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17 * See the License for the specific language governing permissions and
  18 * limitations under the License.
  19 *
  20 */
  21
  22
  23 /******************************************************************************
  24  * File :  email-core-cert.h
  25  * Desc :  Certificate API
  26  *
  27  * Auth :
  28  *
  29  * History :
  30  *    2006.08.16  :  created
  31  *****************************************************************************/
  32 #include <openssl/pkcs7.h>
  33 #include <openssl/pkcs12.h>
  34 #include <openssl/pem.h>
  35 #include <openssl/err.h>
  36 #include <cert-service.h>
  37 #include <glib.h>
  38 #include <cert-svc/ccert.h>
  39 #include <cert-svc/cstring.h>
  40 #include <cert-svc/cpkcs12.h>
  41 #include <cert-svc/cinstance.h>
  42 #include <cert-svc/cprimitives.h>
  43
  44 #include "email-core-cert.h"
  45 #include "email-core-mail.h"
  46 #include "email-core-utils.h"
  47 #include "email-utilities.h"
  48 #include "email-storage.h"
  49 #include "email-debug-log.h"
  50
  51 #define READ_MODE "r"
  52 #define WRITE_MODE "w"
  53
  54 #define TRUSTED_USER "trusteduser/email/"
  55
  56 typedef enum {
  57         CERT_TYPE_ETC          = 0,
  58         CERT_TYPE_PKCS12,
  59         CERT_TYPE_PKCS7,
  60         CERT_TYPE_P7S
  61 } cert_type;
  62
  63 static int emcore_get_certificate_type(char *extension, int *err_code)
  64 {
  65         EM_DEBUG_FUNC_BEGIN("extensiong is [%s]", extension);
  66         int index = 0;
  67         int type = 0;
  68         int err = EMAIL_ERROR_NONE;
  69         char *supported_file_type[] = {"pfx", "p12", "p7s", "pem", "der", "crt", "cer", NULL};
  70
  71         if (!extension) {
  72                 EM_DEBUG_EXCEPTION("Invalid parameter");
  73                 err = EMAIL_ERROR_INVALID_PARAM;
  74                 goto FINISH_OFF;
  75         }
  76
  77         while(supported_file_type[index]) {
  78                 EM_DEBUG_LOG_SEC("certificate extension[%d]:[%s]", index, supported_file_type[index]);
  79                 if (strcasecmp(extension, supported_file_type[index]) == 0) {
  80                         switch (index) {
  81                         case 0:
  82                         case 1:
  83                                 type = CERT_TYPE_PKCS12;
  84                                 err = EMAIL_ERROR_INVALID_CERTIFICATE;
  85                                 break;
  86                         case 2:
  87                                 type = CERT_TYPE_P7S;
  88                                 break;
  89                         case 3:
  90                         case 4:
  91                         case 5:
  92                         case 6:
  93                                 type = CERT_TYPE_PKCS7;
  94                                 break;
  95                         default:
  96                                 type = CERT_TYPE_ETC;
  97                                 err = EMAIL_ERROR_INVALID_CERTIFICATE;
  98                                 break;
  99                         }
 100                 }
 101                 index++;
 102         }
 103
 104 FINISH_OFF:
 105
 106         if (err_code) {
 107                 *err_code = err;
 108         }
 109
 110         EM_DEBUG_FUNC_END("File type is [%d]", type);
 111         return type;
 112 }
 113 /*
 114 static GList *emcore_make_glist_from_string(char *email_address_list)
 115 {
 116         EM_DEBUG_FUNC_BEGIN_SEC("email_address list : [%s]", email_address_list);
 117         int index = 0;
 118         const gchar seperator = 0x01;
 119         GList *email_list = NULL;
 120         gchar *p_email_address_list = NULL;
 121         gchar **token_list = NULL;
 122
 123         p_email_address_list = g_strdup(email_address_list);
 124
 125         token_list = g_strsplit(p_email_address_list, &seperator, -1);
 126         while (token_list[index] != NULL) {
 127                 email_list = g_list_append(email_list, token_list[index]);
 128                 index++;
 129         }
 130
 131         if (p_email_address_list)
 132                 g_free(p_email_address_list);
 133
 134         return email_list;
 135 }
 136
 137 static char *emcore_store_public_certificate(STACK_OF(X509) *certificates, char *email_address, int *err_code)
 138 {
 139         EM_DEBUG_FUNC_BEGIN();
 140         int index = 0;
 141         int err = EMAIL_ERROR_NONE;
 142         char *file_path = NULL;
 143         BIO *outfile = NULL;
 144
 145         file_path = (char *)em_malloc(256);
 146         if (file_path == NULL) {
 147                 EM_DEBUG_EXCEPTION("em_malloc failed");
 148                 err = EMAIL_ERROR_OUT_OF_MEMORY;
 149                 goto FINISH_OFF;
 150         }
 151
 152         SNPRINTF(file_path, 256, "%s%s%s", CERT_SVC_STORE_PATH, TRUSTED_USER, email_address);
 153         outfile = BIO_new_file(file_path, WRITE_MODE);
 154         if (outfile == NULL) {
 155                 EM_DEBUG_EXCEPTION("File open failed[write mode]");
 156                 err = EMAIL_ERROR_SYSTEM_FAILURE;
 157                 goto FINISH_OFF;
 158         }
 159
 160         for (index = 0; index < sk_X509_num(certificates); index++) {
 161                 EM_DEBUG_LOG("Write the certificate in pem file : [%d]", index);
 162                 PEM_write_bio_X509(outfile, sk_X509_value(certificates, index));
 163         }
 164
 165 FINISH_OFF:
 166
 167         if (outfile)
 168                 BIO_free(outfile);
 169
 170         EM_DEBUG_FUNC_END();
 171
 172         return file_path;
 173 }
 174 */
 175 #if 0
 176 INTERNAL_FUNC int emcore_load_PFX_file(char *certificate, char *password, EVP_PKEY **pri_key, X509 **cert, STACK_OF(X509) **ca, int *err_code)
 177 {
 178         EM_DEBUG_FUNC_BEGIN_SEC("Certificate path : [%s], password : [%s]", certificate, password);
 179
 180         int err = EMAIL_ERROR_NONE;
 181         int ret = false;
 182         FILE *fp = NULL;
 183         PKCS12 *p12 = NULL;
 184
 185         err = em_fopen(certificate, "rb", &fp);
 186         if (err != EMAIL_ERROR_NONE) {
 187                 EM_DEBUG_EXCEPTION_SEC("em_fopen failed : [%s] [%d]", certificate, err);
 188                 goto FINISH_OFF;
 189         }
 190
 191         p12 = d2i_PKCS12_fp(fp, NULL);
 192         if (!p12) {
 193                 EM_DEBUG_EXCEPTION("d2i_PKCS12_fp failed");
 194                 err = EMAIL_ERROR_SYSTEM_FAILURE;
 195                 goto FINISH_OFF;
 196         }
 197
 198         if (!PKCS12_parse(p12, password, pri_key, cert, ca)) {
 199                 EM_DEBUG_EXCEPTION("PKCS12_parse failed");
 200                 err = EMAIL_ERROR_SYSTEM_FAILURE;
 201                 goto FINISH_OFF;
 202         }
 203
 204         ret = true;
 205
 206 FINISH_OFF:
 207
 208         if (fp)
 209                 fclose(fp);
 210
 211         if (p12)
 212                 PKCS12_free(p12);
 213
 214         if (err_code)
 215                 *err_code = err;
 216
 217         return ret;
 218 }
 219 #endif
 220
 221 INTERNAL_FUNC int emcore_load_PFX_file(char *certificate, EVP_PKEY **pri_key, X509 **cert, STACK_OF(X509) **ca, int *err_code)
 222 {
 223         EM_DEBUG_FUNC_BEGIN_SEC("certificate : [%s]", certificate);
 224         int err = EMAIL_ERROR_NONE;
 225         int ret = false;
 226         size_t key_size = 0;
 227         char *private_key = NULL;
 228
 229         /* Variable for certificate */
 230         X509 *t_cert = NULL;
 231         BIO *bio_mem = NULL;
 232 //      STACK_OF(X509) *t_ca = NULL;
 233
 234         /* Variable for private key */
 235         EVP_PKEY *t_pri_key = NULL;
 236
 237         CertSvcString csstring;
 238         CertSvcInstance cert_instance;
 239         CertSvcCertificate csc_cert;
 240         CertSvcCertificateList certificate_list;
 241
 242         if (certificate == NULL) {
 243                 EM_DEBUG_EXCEPTION("Invalid parameter");
 244                 err = EMAIL_ERROR_INVALID_PARAM;
 245                 goto FINISH_OFF;
 246         }
 247
 248         /* Create instance */
 249         err = certsvc_instance_new(&cert_instance);
 250         if (err != CERTSVC_SUCCESS) {
 251                 EM_DEBUG_EXCEPTION("certsvc_instance_new failed : [%d]", err);
 252                 err = EMAIL_ERROR_LOAD_CERTIFICATE_FAILURE;
 253                 goto FINISH_OFF;
 254         }
 255
 256         /* Make the pfxID string */
 257         err = certsvc_string_new(cert_instance, certificate, EM_SAFE_STRLEN(certificate), &csstring);
 258         if (err != CERTSVC_SUCCESS) {
 259                 EM_DEBUG_EXCEPTION("certsvc_string_new failed : [%d]", err);
 260                 err = EMAIL_ERROR_LOAD_CERTIFICATE_FAILURE;
 261                 goto FINISH_OFF;
 262         }
 263
 264         /* Load the certificate list of pkcs12 type */
 265         err = certsvc_pkcs12_load_certificate_list(cert_instance, csstring, &certificate_list);
 266         if (err != CERTSVC_SUCCESS) {
 267                 EM_DEBUG_EXCEPTION("certsvc_pkcs12_load_certificate_list failed : [%d]", err);
 268                 err = EMAIL_ERROR_LOAD_CERTIFICATE_FAILURE;
 269                 goto FINISH_OFF;
 270         }
 271
 272         /* Get a certificate */
 273         err = certsvc_certificate_list_get_one(certificate_list, 0, &csc_cert);
 274         if (err != CERTSVC_SUCCESS) {
 275                 EM_DEBUG_EXCEPTION("certsvc_certificate_list_get_one failed : [%d]", err);
 276                 err = EMAIL_ERROR_LOAD_CERTIFICATE_FAILURE;
 277                 goto FINISH_OFF;
 278         }
 279
 280         /* Convert from char to X509 */
 281         err = certsvc_certificate_dup_x509(csc_cert, &t_cert);
 282         if (t_cert == NULL || err != CERTSVC_SUCCESS) {
 283                 EM_DEBUG_EXCEPTION("certsvc_certificate_dup_x509 failed");
 284                 err = EMAIL_ERROR_LOAD_CERTIFICATE_FAILURE;
 285                 goto FINISH_OFF;
 286         }
 287
 288         /* Get the private key */
 289         err = certsvc_pkcs12_private_key_dup(cert_instance, csstring, &private_key, &key_size);
 290         if (err != CERTSVC_SUCCESS) {
 291                 EM_DEBUG_EXCEPTION("certsvc_pkcs12_private_key_dup failed : [%d]", err);
 292                 err = EMAIL_ERROR_LOAD_CERTIFICATE_FAILURE;
 293                 goto FINISH_OFF;
 294         }
 295
 296         EM_DEBUG_LOG_DEV("key_size : [%d], private_key : [%s]", key_size, private_key);
 297
 298         /* Convert char to pkey */
 299         bio_mem = BIO_new(BIO_s_mem());
 300         if (bio_mem == NULL) {
 301                 EM_DEBUG_EXCEPTION("malloc failed");
 302                 err = EMAIL_ERROR_OUT_OF_MEMORY;
 303                 goto FINISH_OFF;
 304         }
 305
 306         if (BIO_write(bio_mem, private_key, key_size) <= 0) {
 307                 EM_DEBUG_EXCEPTION("BIO_write failed");
 308                 err = EMAIL_ERROR_LOAD_CERTIFICATE_FAILURE;
 309                 goto FINISH_OFF;
 310         }
 311
 312         t_pri_key = PEM_read_bio_PrivateKey(bio_mem, NULL, 0, NULL);
 313         if (t_pri_key == NULL) {
 314                 EM_DEBUG_EXCEPTION("PEM_read_bio_PrivateKey failed");
 315                 err = EMAIL_ERROR_LOAD_CERTIFICATE_FAILURE;
 316                 goto FINISH_OFF;
 317         }
 318
 319         ret = true;
 320
 321 FINISH_OFF:
 322
 323         if (bio_mem)
 324                 BIO_free(bio_mem);
 325
 326         if (true) {
 327                 if (cert)
 328                         *cert = t_cert;
 329
 330                 if (pri_key)
 331                         *pri_key = t_pri_key;
 332         } else {
 333                 X509_free(t_cert);
 334                 EVP_PKEY_free(t_pri_key);
 335         }
 336
 337         if (private_key)
 338                 EM_SAFE_FREE(private_key);
 339
 340         if (err_code)
 341                 *err_code = err;
 342
 343         return ret;
 344 }
 345
 346 INTERNAL_FUNC int emcore_add_public_certificate(char *multi_user_name, char *public_cert_path, char *save_name, int *err_code)
 347 {
 348         EM_DEBUG_FUNC_BEGIN_SEC("Path [%s], filename [%s]", public_cert_path, save_name);
 349         int err = EMAIL_ERROR_NONE;
 350         int ret = false;
 351         int validity = 0;
 352         int cert_type = 0;
 353         char temp_file[512] = {0, };
 354         char temp_save_name[512] = {0, };
 355         char filepath[512] = {0, };
 356         char *extension = NULL;
 357         emstorage_certificate_tbl_t *cert = NULL;
 358         CERT_CONTEXT *context = NULL;
 359
 360         if (public_cert_path == NULL || save_name == NULL) {
 361                 EM_DEBUG_EXCEPTION("Invalid parameter");
 362                 err = EMAIL_ERROR_INVALID_PARAM;
 363                 goto FINISH_OFF;
 364         }
 365
 366         /* Initilize the structure of certificate */
 367         context = cert_svc_cert_context_init();
 368
 369         /* Parse the file type */
 370         extension = em_get_extension_from_file_path(public_cert_path, NULL);
 371         if (extension == NULL) {
 372                 EM_DEBUG_EXCEPTION("Invalid parameter");
 373                 err = EMAIL_ERROR_INVALID_PARAM;
 374                 goto FINISH_OFF;
 375         }
 376
 377         /* Get the file type information */
 378         cert_type = emcore_get_certificate_type(extension, &err);
 379         if (!cert_type || err == EMAIL_ERROR_INVALID_CERTIFICATE) {
 380                 EM_DEBUG_EXCEPTION("Invalid certificate");
 381                 goto FINISH_OFF;
 382         }
 383
 384         /* Create temp file and rename */
 385         if (cert_type == CERT_TYPE_P7S) {
 386                 extension = "der";
 387         }
 388
 389         SNPRINTF(temp_file, sizeof(temp_file), "%s%s%s.%s", MAILTEMP, DIR_SEPERATOR, save_name, extension);
 390         EM_DEBUG_LOG_SEC("temp cert path : [%s]", temp_file);
 391
 392         if (!emstorage_copy_file(public_cert_path, temp_file, false, &err)) {
 393                 EM_DEBUG_EXCEPTION("emstorage_copy_file failed [%d]", err);
 394                 goto FINISH_OFF;
 395         }
 396
 397         /* Load the public certificate */
 398         err = cert_svc_load_file_to_context(context, temp_file);
 399         if (err != CERT_SVC_ERR_NO_ERROR) {
 400                 EM_DEBUG_EXCEPTION("Load cert failed : [%d]", err);
 401                 err = EMAIL_ERROR_INVALID_CERTIFICATE;
 402                 goto FINISH_OFF;
 403         }
 404
 405         /* Verify the certificate */
 406         if (cert_svc_verify_certificate(context, &validity) != CERT_SVC_ERR_NO_ERROR) {
 407                 EM_DEBUG_EXCEPTION("cert_svc_verify_certificate failed");
 408 //              err = EMAIL_ERROR_INVALID_CERTIFICATE;
 409 //              goto FINISH_OFF;
 410         }
 411
 412         if (validity <= 0) {
 413                 EM_DEBUG_LOG("Invalid certificate");
 414         }
 415
 416         /* Load the certificate information */
 417         if (cert_svc_extract_certificate_data(context) != CERT_SVC_ERR_NO_ERROR) {
 418                 EM_DEBUG_EXCEPTION("Extract the certificate failed");
 419                 err = EMAIL_ERROR_UNKNOWN;
 420                 goto FINISH_OFF;
 421         }
 422
 423         /* Store the certificate file to trusted folder */
 424         if (cert_svc_add_certificate_to_store(temp_file, TRUSTED_USER) != CERT_SVC_ERR_NO_ERROR) {
 425                 EM_DEBUG_EXCEPTION("Add certificate to trusted folder");
 426                 err = EMAIL_ERROR_UNKNOWN;
 427                 goto FINISH_OFF;
 428         }
 429
 430         /* Store the certificate to DB */
 431         SNPRINTF(filepath, sizeof(filepath), "%s%s%s.%s", CERT_SVC_STORE_PATH, TRUSTED_USER, save_name, extension);
 432         SNPRINTF(temp_save_name, sizeof(temp_save_name), "<%s>", save_name);
 433
 434         cert = (emstorage_certificate_tbl_t *)em_malloc(sizeof(emstorage_certificate_tbl_t));
 435         if (cert == NULL) {
 436                 EM_DEBUG_EXCEPTION("em_malloc failed");
 437                 err = EMAIL_ERROR_OUT_OF_MEMORY;
 438                 goto FINISH_OFF;
 439         }
 440
 441         cert->issue_year = context->certDesc->info.validPeriod.firstYear;
 442         cert->issue_year = context->certDesc->info.validPeriod.firstYear;
 443         cert->issue_month = context->certDesc->info.validPeriod.firstMonth;
 444         cert->issue_day = context->certDesc->info.validPeriod.firstDay;
 445         cert->expiration_year= context->certDesc->info.validPeriod.secondYear;
 446         cert->expiration_month = context->certDesc->info.validPeriod.secondMonth;
 447         cert->expiration_day = context->certDesc->info.validPeriod.secondDay;
 448         cert->issue_organization_name = EM_SAFE_STRDUP(context->certDesc->info.issuer.organizationName);
 449         cert->email_address = EM_SAFE_STRDUP(temp_save_name);
 450         cert->subject_str = EM_SAFE_STRDUP(context->certDesc->info.issuerStr);
 451         cert->filepath = EM_SAFE_STRDUP(filepath);
 452
 453         if (emstorage_add_certificate(multi_user_name, cert, true, &err)) {
 454                 EM_DEBUG_EXCEPTION("emstorage_add_certificate failed");
 455                 goto FINISH_OFF;
 456         }
 457
 458         if (!emstorage_delete_file(public_cert_path, &err)) {
 459                 EM_DEBUG_EXCEPTION("emstorage_delete_file failed [%d]", err);
 460                 goto FINISH_OFF;
 461         }
 462
 463         ret = true;
 464
 465 FINISH_OFF:
 466
 467         emstorage_delete_file(temp_file, NULL);
 468
 469         emstorage_free_certificate(&cert, 1, NULL);
 470
 471         cert_svc_cert_context_final(context);
 472
 473         if (err_code != NULL) {
 474                 *err_code = err;
 475         }
 476
 477         EM_DEBUG_FUNC_END();
 478
 479         return ret;
 480
 481 }
 482
 483 INTERNAL_FUNC int emcore_delete_public_certificate(char *multi_user_name, char *email_address, int *err_code)
 484 {
 485         EM_DEBUG_FUNC_BEGIN();
 486         int ret = false;
 487         int err = EMAIL_ERROR_NONE;
 488         emstorage_certificate_tbl_t *certificate = NULL;
 489
 490         if (email_address == NULL) {
 491                 EM_DEBUG_EXCEPTION("Invalid parameter");
 492                 err = EMAIL_ERROR_INVALID_PARAM;
 493                 goto FINISH_OFF;
 494         }
 495
 496         if (!emstorage_get_certificate_by_email_address(multi_user_name, email_address, &certificate, false, 0, &err)) {
 497                 EM_DEBUG_EXCEPTION("emstorage_get_certificate failed");
 498                 goto FINISH_OFF;
 499         }
 500
 501         if (remove(certificate->filepath) < 0) {
 502                 EM_DEBUG_EXCEPTION_SEC("remove failed : [%s]", certificate->filepath);
 503                 goto FINISH_OFF;
 504         }
 505
 506         if (!emstorage_delete_certificate(multi_user_name, certificate->certificate_id, true, &err)) {
 507                 EM_DEBUG_EXCEPTION("emstorage_delete_certificate failed");
 508                 goto FINISH_OFF;
 509         }
 510
 511         ret = true;
 512 FINISH_OFF:
 513
 514         if (certificate != NULL)
 515                 emstorage_free_certificate(&certificate, 1, NULL);
 516
 517         if (err_code != NULL)
 518                 *err_code = err;
 519
 520         EM_DEBUG_FUNC_END();
 521
 522         return ret;
 523 }
 524
 525 INTERNAL_FUNC int emcore_verify_signature(char *p7s_file_path, char *mime_entity, int *validity, int *err_code)
 526 {
 527         EM_DEBUG_FUNC_BEGIN_SEC("path : [%s], mime_entity : [%s]", p7s_file_path, mime_entity);
 528         int ret = false;
 529         int err = EMAIL_ERROR_NONE;
 530         int t_validity = 0;
 531         int flags = PKCS7_NOVERIFY;
 532
 533         BIO *bio_p7s = NULL;
 534
 535         BIO *bio_indata = NULL;
 536
 537         PKCS7 *pkcs7_p7s = NULL;
 538
 539         /* Open p7s file */
 540         bio_p7s = BIO_new_file(p7s_file_path, INMODE);
 541         if (!bio_p7s) {
 542                 EM_DEBUG_EXCEPTION("File open failed");
 543                 err = EMAIL_ERROR_SYSTEM_FAILURE;
 544                 goto FINISH_OFF;
 545         }
 546
 547         /* Open input data file */
 548         bio_indata = BIO_new_file(mime_entity, INMODE);
 549         if (!bio_p7s) {
 550                 EM_DEBUG_EXCEPTION("File open failed");
 551                 err = EMAIL_ERROR_SYSTEM_FAILURE;
 552                 goto FINISH_OFF;
 553         }
 554
 555         /* Load the p7s file */
 556         pkcs7_p7s = d2i_PKCS7_bio(bio_p7s, NULL);
 557         if (!pkcs7_p7s) {
 558                 EM_DEBUG_EXCEPTION("d2i_PKCS7_bio failed");
 559                 err = EMAIL_ERROR_LOAD_CERTIFICATE_FAILURE;
 560                 goto FINISH_OFF;
 561         }
 562
 563         if (!PKCS7_verify(pkcs7_p7s, NULL, NULL, bio_indata, NULL, flags)) {
 564                 EM_DEBUG_EXCEPTION("PKCS7_verify failed");
 565                 goto FINISH_OFF;
 566         }
 567
 568         t_validity = 1;
 569
 570         ret = true;
 571
 572 FINISH_OFF:
 573
 574         if (pkcs7_p7s)
 575                 PKCS7_free(pkcs7_p7s);
 576
 577         if (bio_p7s)
 578                 BIO_free(bio_p7s);
 579
 580         if (bio_indata)
 581                 BIO_free(bio_indata);
 582
 583         if (validity)
 584                 *validity = t_validity;
 585
 586         if (err_code)
 587                 *err_code = err;
 588
 589         EM_DEBUG_FUNC_END();
 590         return ret;
 591 }
 592
 593 INTERNAL_FUNC int emcore_verify_certificate(char *certificate, int *validity, int *err_code)
 594 {
 595         EM_DEBUG_FUNC_BEGIN();
 596         int ret = false;
 597         int err = EMAIL_ERROR_NONE;
 598         int p_validity = 0;
 599
 600         CERT_CONTEXT *context = NULL;
 601
 602         context = cert_svc_cert_context_init();
 603
 604         err = cert_svc_load_file_to_context(context, certificate);
 605         if (err != CERT_SVC_ERR_NO_ERROR) {
 606                 EM_DEBUG_EXCEPTION("Certificate load failed");
 607                 goto FINISH_OFF;
 608         }
 609
 610         err = cert_svc_verify_certificate(context, &p_validity);
 611         if (err != CERT_SVC_ERR_NO_ERROR) {
 612                 EM_DEBUG_EXCEPTION("Certificate verify failed");
 613                 goto FINISH_OFF;
 614         }
 615
 616         ret = true;
 617
 618 FINISH_OFF:
 619
 620         if (validity != NULL)
 621                 *validity = p_validity;
 622
 623         if (err_code != NULL) {
 624                 *err_code = err;
 625         }
 626
 627         cert_svc_cert_context_final(context);
 628
 629         EM_DEBUG_FUNC_END();
 630         return ret;
 631 }
 632
 633 INTERNAL_FUNC int emcore_free_certificate(email_certificate_t **certificate, int count, int *err_code)
 634 {
 635         EM_DEBUG_FUNC_BEGIN("certificate [%p], count [%d]", certificate, count);
 636
 637         if (count <= 0 || !certificate || !*certificate) {
 638                 EM_DEBUG_EXCEPTION("EMAIL_ERROR_INVALID_PARAM");
 639                 if (err_code)
 640                         *err_code = EMAIL_ERROR_INVALID_PARAM;
 641                 return false;
 642         }
 643
 644         email_certificate_t *p_certificate = *certificate;
 645         int i;
 646
 647         for (i=0;i<count;i++) {
 648                 EM_SAFE_FREE(p_certificate[i].issue_organization_name);
 649                 EM_SAFE_FREE(p_certificate[i].email_address);
 650                 EM_SAFE_FREE(p_certificate[i].subject_str);
 651                 EM_SAFE_FREE(p_certificate[i].filepath);
 652         }
 653
 654         EM_SAFE_FREE(p_certificate);
 655         *certificate = NULL;
 656
 657         if (err_code)
 658                 *err_code = EMAIL_ERROR_NONE;
 659
 660         EM_DEBUG_FUNC_END();
 661         return true;
 662 }