/* 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);
}