/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/*
 * test_validatechain.c
 *
 * Test ValidateChain function
 *
 */

#include "testutil.h"
#include "testutil_nss.h"

static void *plContext = NULL;

static void
printUsage(void)
{
    (void)printf("\nUSAGE:\nvalidateChain TestName [ENE|EE] "
                 "<certStoreDirectory> <trustedCert> <targetCert>\n\n");
    (void)printf("Validates a chain of certificates between "
                 "<trustedCert> and <targetCert>\n"
                 "using the certs and CRLs in <certStoreDirectory>. "
                 "If ENE is specified,\n"
                 "then an Error is Not Expected. "
                 "If EE is specified, an Error is Expected.\n");
}

static char *
createFullPathName(
    char *dirName,
    char *certFile,
    void *plContext)
{
    PKIX_UInt32 certFileLen;
    PKIX_UInt32 dirNameLen;
    char *certPathName = NULL;

    PKIX_TEST_STD_VARS();

    certFileLen = PL_strlen(certFile);
    dirNameLen = PL_strlen(dirName);

    PKIX_TEST_EXPECT_NO_ERROR(PKIX_PL_Malloc(dirNameLen +
                                                 certFileLen +
                                                 2,
                                             (void **)&certPathName,
                                             plContext));

    PL_strcpy(certPathName, dirName);
    PL_strcat(certPathName, "/");
    PL_strcat(certPathName, certFile);
    printf("certPathName = %s\n", certPathName);

cleanup:

    PKIX_TEST_RETURN();

    return (certPathName);
}

static PKIX_Error *
testDefaultCertStore(PKIX_ValidateParams *valParams, char *crlDir)
{
    PKIX_PL_String *dirString = NULL;
    PKIX_CertStore *certStore = NULL;
    PKIX_ProcessingParams *procParams = NULL;
    PKIX_PL_Date *validity = NULL;
    PKIX_List *revCheckers = NULL;
    PKIX_RevocationChecker *ocspChecker = NULL;

    PKIX_TEST_STD_VARS();

    subTest("PKIX_PL_CollectionCertStoreContext_Create");

    /* Create CollectionCertStore */

    PKIX_TEST_EXPECT_NO_ERROR(PKIX_PL_String_Create(PKIX_ESCASCII, crlDir, 0, &dirString, plContext));

    PKIX_TEST_EXPECT_NO_ERROR(PKIX_PL_CollectionCertStore_Create(dirString, &certStore, plContext));

    /* Create CertStore */

    PKIX_TEST_EXPECT_NO_ERROR(PKIX_ValidateParams_GetProcessingParams(valParams, &procParams, plContext));

    subTest("PKIX_ProcessingParams_AddCertStore");
    PKIX_TEST_EXPECT_NO_ERROR(PKIX_ProcessingParams_AddCertStore(procParams, certStore, plContext));

    subTest("PKIX_ProcessingParams_SetRevocationEnabled");

    PKIX_TEST_EXPECT_NO_ERROR(PKIX_ProcessingParams_SetRevocationEnabled(procParams, PKIX_TRUE, plContext));

    /* create current Date */
    PKIX_TEST_EXPECT_NO_ERROR(pkix_pl_Date_CreateFromPRTime(PR_Now(), &validity, plContext));

    PKIX_TEST_EXPECT_NO_ERROR(PKIX_List_Create(&revCheckers, plContext));

    /* create revChecker */
    PKIX_TEST_EXPECT_NO_ERROR(PKIX_OcspChecker_Initialize(validity,
                                                          NULL, /* pwArg */
                                                          NULL, /* Use default responder */
                                                          &ocspChecker,
                                                          plContext));

    PKIX_TEST_EXPECT_NO_ERROR(PKIX_List_AppendItem(revCheckers, (PKIX_PL_Object *)ocspChecker, plContext));

    PKIX_TEST_EXPECT_NO_ERROR(PKIX_ProcessingParams_SetRevocationCheckers(procParams, revCheckers, plContext));

cleanup:

    PKIX_TEST_DECREF_AC(dirString);
    PKIX_TEST_DECREF_AC(procParams);
    PKIX_TEST_DECREF_AC(certStore);
    PKIX_TEST_DECREF_AC(revCheckers);
    PKIX_TEST_DECREF_AC(ocspChecker);

    PKIX_TEST_RETURN();

    return (0);
}

int
test_validatechain(int argc, char *argv[])
{

    PKIX_ValidateParams *valParams = NULL;
    PKIX_ValidateResult *valResult = NULL;
    PKIX_UInt32 actualMinorVersion;
    PKIX_UInt32 j = 0;
    PKIX_UInt32 k = 0;
    PKIX_UInt32 chainLength = 0;
    PKIX_Boolean testValid = PKIX_TRUE;
    PKIX_List *chainCerts = NULL;
    PKIX_PL_Cert *dirCert = NULL;
    PKIX_VerifyNode *verifyTree = NULL;
    PKIX_PL_String *verifyString = NULL;
    char *dirCertName = NULL;
    char *anchorCertName = NULL;
    char *dirName = NULL;

    PKIX_TEST_STD_VARS();

    if (argc < 5) {
        printUsage();
        return (0);
    }

    startTests("ValidateChain");

    PKIX_TEST_EXPECT_NO_ERROR(
        PKIX_PL_NssContext_Create(0, PKIX_FALSE, NULL, &plContext));

    /* ENE = expect no error; EE = expect error */
    if (PORT_Strcmp(argv[2 + j], "ENE") == 0) {
        testValid = PKIX_TRUE;
    } else if (PORT_Strcmp(argv[2 + j], "EE") == 0) {
        testValid = PKIX_FALSE;
    } else {
        printUsage();
        return (0);
    }

    subTest(argv[1 + j]);

    dirName = argv[3 + j];

    chainLength = argc - j - 5;

    PKIX_TEST_EXPECT_NO_ERROR(PKIX_List_Create(&chainCerts, plContext));

    for (k = 0; k < chainLength; k++) {

        dirCert = createCert(dirName, argv[5 + k + j], plContext);

        PKIX_TEST_EXPECT_NO_ERROR(PKIX_List_AppendItem(chainCerts, (PKIX_PL_Object *)dirCert, plContext));

        PKIX_TEST_DECREF_BC(dirCert);
    }

    valParams = createValidateParams(dirName,
                                     argv[4 +
                                          j],
                                     NULL,
                                     NULL,
                                     NULL,
                                     PKIX_FALSE,
                                     PKIX_FALSE,
                                     PKIX_FALSE,
                                     PKIX_FALSE,
                                     chainCerts,
                                     plContext);

    testDefaultCertStore(valParams, dirName);

    if (testValid == PKIX_TRUE) {
        PKIX_TEST_EXPECT_NO_ERROR(PKIX_ValidateChain(valParams, &valResult, &verifyTree, plContext));
    } else {
        PKIX_TEST_EXPECT_ERROR(PKIX_ValidateChain(valParams, &valResult, &verifyTree, plContext));
    }

    subTest("Displaying VerifyNode objects");

    PKIX_TEST_EXPECT_NO_ERROR(PKIX_PL_Object_ToString((PKIX_PL_Object *)verifyTree, &verifyString, plContext));
    (void)printf("verifyTree is\n%s\n", verifyString->escAsciiString);

cleanup:
    PKIX_TEST_DECREF_AC(verifyString);
    PKIX_TEST_DECREF_AC(verifyTree);

    PKIX_TEST_DECREF_AC(chainCerts);
    PKIX_TEST_DECREF_AC(valParams);
    PKIX_TEST_DECREF_AC(valResult);

    PKIX_Shutdown(plContext);

    PKIX_TEST_RETURN();

    endTests("ValidateChain");

    return (0);
}