Delete bundled copy of NSS and replace with README.

nss/lib/libpkix/pkix/checker/pkix_ocspchecker.c

Index: nss/lib/libpkix/pkix/checker/pkix_ocspchecker.c
diff --git a/nss/lib/libpkix/pkix/checker/pkix_ocspchecker.c b/nss/lib/libpkix/pkix/checker/pkix_ocspchecker.c
deleted file mode 100644
index b6fca9a3547acef90fd8d337105ee62b4327b70e..0000000000000000000000000000000000000000
--- a/nss/lib/libpkix/pkix/checker/pkix_ocspchecker.c
+++ /dev/null
@@ -1,419 +0,0 @@
-/* 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/. */
-/*
- * pkix_ocspchecker.c
- *
- * OcspChecker Object Functions
- *
- */
-
-#include "pkix_ocspchecker.h"
-#include "pkix_pl_ocspcertid.h"
-#include "pkix_error.h"
-
-
-/* --Private-Data-and-Types--------------------------------------- */
-
-typedef struct pkix_OcspCheckerStruct {
-    /* RevocationMethod is the super class of OcspChecker. */
-    pkix_RevocationMethod method;
-    PKIX_PL_VerifyCallback certVerifyFcn;
-} pkix_OcspChecker;
-
-/* --Private-Functions-------------------------------------------- */
-
-/*
- * FUNCTION: pkix_OcspChecker_Destroy
- *      (see comments for PKIX_PL_DestructorCallback in pkix_pl_system.h)
- */
-static PKIX_Error *
-pkix_OcspChecker_Destroy(
-        PKIX_PL_Object *object,
-        void *plContext)
-{
-    return NULL;
-}
-
-/*
- * FUNCTION: pkix_OcspChecker_RegisterSelf
- * DESCRIPTION:
- *  Registers PKIX_OCSPCHECKER_TYPE and its related functions with
- *  systemClasses[]
- * THREAD SAFETY:
- *  Not Thread Safe - for performance and complexity reasons
- *
- *  Since this function is only called by PKIX_PL_Initialize, which should
- *  only be called once, it is acceptable that this function is not
- *  thread-safe.
- */
-PKIX_Error *
-pkix_OcspChecker_RegisterSelf(void *plContext)
-{
-        extern pkix_ClassTable_Entry systemClasses[PKIX_NUMTYPES];
-        pkix_ClassTable_Entry* entry = &systemClasses[PKIX_OCSPCHECKER_TYPE];
-
-        PKIX_ENTER(OCSPCHECKER, "pkix_OcspChecker_RegisterSelf");
-
-        entry->description = "OcspChecker";
-        entry->typeObjectSize = sizeof(pkix_OcspChecker);
-        entry->destructor = pkix_OcspChecker_Destroy;
-
-        PKIX_RETURN(OCSPCHECKER);
-}
-
-
-/*
- * FUNCTION: pkix_OcspChecker_Create
- */
-PKIX_Error *
-pkix_OcspChecker_Create(PKIX_RevocationMethodType methodType,
-                        PKIX_UInt32 flags,
-                        PKIX_UInt32 priority,
-                        pkix_LocalRevocationCheckFn localRevChecker,
-                        pkix_ExternalRevocationCheckFn externalRevChecker,
-                        PKIX_PL_VerifyCallback verifyFn,
-                        pkix_RevocationMethod **pChecker,
-                        void *plContext)
-{
-        pkix_OcspChecker *method = NULL;
-
-        PKIX_ENTER(OCSPCHECKER, "pkix_OcspChecker_Create");
-        PKIX_NULLCHECK_ONE(pChecker);
-
-        PKIX_CHECK(PKIX_PL_Object_Alloc
-                    (PKIX_OCSPCHECKER_TYPE,
-                    sizeof (pkix_OcspChecker),
-                    (PKIX_PL_Object **)&method,
-                    plContext),
-                    PKIX_COULDNOTCREATECERTCHAINCHECKEROBJECT);
-
-        pkixErrorResult = pkix_RevocationMethod_Init(
-            (pkix_RevocationMethod*)method, methodType, flags,  priority,
-            localRevChecker, externalRevChecker, plContext);
-        if (pkixErrorResult) {
-            goto cleanup;
-        }
-        method->certVerifyFcn = (PKIX_PL_VerifyCallback)verifyFn;
-
-        *pChecker = (pkix_RevocationMethod*)method;
-        method = NULL;
-
-cleanup:
-        PKIX_DECREF(method);
-
-        PKIX_RETURN(OCSPCHECKER);
-}
-
-/*
- * FUNCTION: pkix_OcspChecker_MapResultCodeToRevStatus
- */
-PKIX_RevocationStatus
-pkix_OcspChecker_MapResultCodeToRevStatus(SECErrorCodes resultCode)
-{
-        switch (resultCode) {
-            case SEC_ERROR_REVOKED_CERTIFICATE:
-                return PKIX_RevStatus_Revoked;
-            default:
-                return PKIX_RevStatus_NoInfo;
-        }
-}
-
-/* --Public-Functions--------------------------------------------- */
-
-/*
- * FUNCTION: pkix_OcspChecker_Check (see comments in pkix_checker.h)
- */
-
-/*
- * The OCSPChecker is created in an idle state, and remains in this state until
- * either (a) the default Responder has been set and enabled, and a Check
- * request is received with no responder specified, or (b) a Check request is
- * received with a specified responder. A request message is constructed and
- * given to the HttpClient. If non-blocking I/O is used the client may return
- * with WOULDBLOCK, in which case the OCSPChecker returns the WOULDBLOCK
- * condition to its caller in turn. On a subsequent call the I/O is resumed.
- * When a response is received it is decoded and the results provided to the
- * caller.
- *
- */
-PKIX_Error *
-pkix_OcspChecker_CheckLocal(
-        PKIX_PL_Cert *cert,
-        PKIX_PL_Cert *issuer,
-        PKIX_PL_Date *date,
-        pkix_RevocationMethod *checkerObject,
-        PKIX_ProcessingParams *procParams,
-        PKIX_UInt32 methodFlags,
-        PKIX_Boolean chainVerificationState,
-        PKIX_RevocationStatus *pRevStatus,
-        CERTCRLEntryReasonCode *pReasonCode,
-        void *plContext)
-{
-        PKIX_PL_OcspCertID    *cid = NULL;
-        PKIX_Boolean           hasFreshStatus = PKIX_FALSE;
-        PKIX_Boolean           statusIsGood = PKIX_FALSE;
-        SECErrorCodes          resultCode = SEC_ERROR_REVOKED_CERTIFICATE_OCSP;
-        PKIX_RevocationStatus  revStatus = PKIX_RevStatus_NoInfo;
-
-        PKIX_ENTER(OCSPCHECKER, "pkix_OcspChecker_CheckLocal");
-
-        PKIX_CHECK(
-            PKIX_PL_OcspCertID_Create(cert, NULL, &cid,
-                                      plContext),
-            PKIX_OCSPCERTIDCREATEFAILED);
-        if (!cid) {
-            goto cleanup;
-        }
-
-        PKIX_CHECK(
-            PKIX_PL_OcspCertID_GetFreshCacheStatus(cid, date,
-                                                   &hasFreshStatus,
-                                                   &statusIsGood,
-                                                   &resultCode,
-                                                   plContext),
-            PKIX_OCSPCERTIDGETFRESHCACHESTATUSFAILED);
-        if (hasFreshStatus) {
-            if (statusIsGood) {
-                revStatus = PKIX_RevStatus_Success;
-                resultCode = 0;
-            } else {
-                revStatus = pkix_OcspChecker_MapResultCodeToRevStatus(resultCode);
-            }
-        }
-
-cleanup:
-        *pRevStatus = revStatus;
-
-        /* ocsp carries only tree statuses: good, bad, and unknown.
-         * revStatus is used to pass them. reasonCode is always set
-         * to be unknown. */
-        *pReasonCode = crlEntryReasonUnspecified;
-        PKIX_DECREF(cid);
-
-        PKIX_RETURN(OCSPCHECKER);
-}
-
-
-/*
- * The OCSPChecker is created in an idle state, and remains in this state until
- * either (a) the default Responder has been set and enabled, and a Check
- * request is received with no responder specified, or (b) a Check request is
- * received with a specified responder. A request message is constructed and
- * given to the HttpClient. When a response is received it is decoded and the
- * results provided to the caller.
- *
- * During the most recent enhancement of this function, it has been found that
- * it doesn't correctly implement non-blocking I/O.
- * 
- * The nbioContext is used in two places, for "response-obtaining" and
- * for "response-verification".
- * 
- * However, if this function gets called to resume, it always
- * repeats the "request creation" and "response fetching" steps!
- * As a result, the earlier operation is never resumed.
- */
-PKIX_Error *
-pkix_OcspChecker_CheckExternal(
-        PKIX_PL_Cert *cert,
-        PKIX_PL_Cert *issuer,
-        PKIX_PL_Date *date,
-        pkix_RevocationMethod *checkerObject,
-        PKIX_ProcessingParams *procParams,
-        PKIX_UInt32 methodFlags,
-        PKIX_RevocationStatus *pRevStatus,
-        CERTCRLEntryReasonCode *pReasonCode,
-        void **pNBIOContext,
-        void *plContext)
-{
-        SECErrorCodes resultCode = SEC_ERROR_REVOKED_CERTIFICATE_OCSP;
-        PKIX_Boolean uriFound = PKIX_FALSE;
-        PKIX_Boolean passed = PKIX_TRUE;
-        pkix_OcspChecker *checker = NULL;
-        PKIX_PL_OcspCertID *cid = NULL;
-        PKIX_PL_OcspRequest *request = NULL;
-        PKIX_PL_OcspResponse *response = NULL;
-        PKIX_PL_Date *validity = NULL;
-        PKIX_RevocationStatus revStatus = PKIX_RevStatus_NoInfo;
-        void *nbioContext = NULL;
-        enum { stageGET, stagePOST } currentStage;
-        PRBool retry = PR_FALSE;
-
-        PKIX_ENTER(OCSPCHECKER, "pkix_OcspChecker_CheckExternal");
-
-        PKIX_CHECK(
-            pkix_CheckType((PKIX_PL_Object*)checkerObject,
-                           PKIX_OCSPCHECKER_TYPE, plContext),
-                PKIX_OBJECTNOTOCSPCHECKER);
-
-        checker = (pkix_OcspChecker *)checkerObject;
-
-        PKIX_CHECK(
-            PKIX_PL_OcspCertID_Create(cert, NULL, &cid,
-                                      plContext),
-            PKIX_OCSPCERTIDCREATEFAILED);
-        
-        /* create request */
-        PKIX_CHECK(
-            pkix_pl_OcspRequest_Create(cert, cid, validity, NULL, 
-                                       methodFlags, &uriFound, &request,
-                                       plContext),
-            PKIX_OCSPREQUESTCREATEFAILED);
-        
-        if (uriFound == PKIX_FALSE) {
-            /* no caching for certs lacking URI */
-            resultCode = 0;
-            goto cleanup;
-        }
-
-        if (methodFlags & CERT_REV_M_FORCE_POST_METHOD_FOR_OCSP) {
-            /* Do not try HTTP GET, only HTTP POST */
-            currentStage = stagePOST;
-        } else {
-            /* Try HTTP GET first, falling back to POST */
-            currentStage = stageGET;
-        }
-
-        do {
-                const char *method;
-                passed = PKIX_TRUE;
-
-                retry = PR_FALSE;
-                if (currentStage == stageGET) {
-                        method = "GET";
-                } else {
-                        PORT_Assert(currentStage == stagePOST);
-                        method = "POST";
-                }
-
-                /* send request and create a response object */
-                PKIX_CHECK_NO_GOTO(
-                    pkix_pl_OcspResponse_Create(request, method, NULL,
-                                                checker->certVerifyFcn,
-                                                &nbioContext,
-                                                &response,
-                                                plContext),
-                    PKIX_OCSPRESPONSECREATEFAILED);
-
-                if (pkixErrorResult) {
-                    passed = PKIX_FALSE;
-                }
-
-                if (passed && nbioContext != 0) {
-                        *pNBIOContext = nbioContext;
-                        goto cleanup;
-                }
-
-                if (passed){
-                        PKIX_CHECK_NO_GOTO(
-                            pkix_pl_OcspResponse_Decode(response, &passed,
-                                                        &resultCode, plContext),
-                            PKIX_OCSPRESPONSEDECODEFAILED);
-                        if (pkixErrorResult) {
-                            passed = PKIX_FALSE;
-                        }
-                }
-                
-                if (passed){
-                        PKIX_CHECK_NO_GOTO(
-                            pkix_pl_OcspResponse_GetStatus(response, &passed,
-                                                           &resultCode, plContext),
-                            PKIX_OCSPRESPONSEGETSTATUSRETURNEDANERROR);
-                        if (pkixErrorResult) {
-                            passed = PKIX_FALSE;
-                        }
-                }
-
-                if (passed){
-                        PKIX_CHECK_NO_GOTO(
-                            pkix_pl_OcspResponse_VerifySignature(response, cert,
-                                                                 procParams, &passed, 
-                                                                 &nbioContext, plContext),
-                            PKIX_OCSPRESPONSEVERIFYSIGNATUREFAILED);
-                        if (pkixErrorResult) {
-                            passed = PKIX_FALSE;
-                        } else {
-                                if (nbioContext != 0) {
-                                        *pNBIOContext = nbioContext;
-                                        goto cleanup;
-                                }
-                        }
-                }
-
-                if (!passed && currentStage == stagePOST) {
-                        /* We won't retry a POST failure, so it's final.
-                         * Because the following block with its call to
-                         *   pkix_pl_OcspResponse_GetStatusForCert
-                         * will take care of caching good or bad state,
-                         * but we only execute that next block if there hasn't
-                         * been a failure yet, we must cache the POST
-                         * failure now.
-                         */
-                         
-                        if (cid && cid->certID) {
-                                /* Caching MIGHT consume the cid. */
-                                PKIX_Error *err;
-                                err = PKIX_PL_OcspCertID_RememberOCSPProcessingFailure(
-                                        cid, plContext);
-                                if (err) {
-                                        PKIX_PL_Object_DecRef((PKIX_PL_Object*)err, plContext);
-                                }
-                        }
-                }
-
-                if (passed){
-                        PKIX_Boolean allowCachingOfFailures =
-                                (currentStage == stagePOST) ? PKIX_TRUE : PKIX_FALSE;
-                        
-                        PKIX_CHECK_NO_GOTO(
-                            pkix_pl_OcspResponse_GetStatusForCert(cid, response,
-                                                                  allowCachingOfFailures,
-                                                                  date,
-                                                                  &passed, &resultCode,
-                                                                  plContext),
-                            PKIX_OCSPRESPONSEGETSTATUSFORCERTFAILED);
-                        if (pkixErrorResult) {
-                            passed = PKIX_FALSE;
-                        } else if (passed == PKIX_FALSE) {
-                                revStatus = pkix_OcspChecker_MapResultCodeToRevStatus(resultCode);
-                        } else {
-                                revStatus = PKIX_RevStatus_Success;
-                        }
-                }
-
-                if (currentStage == stageGET && revStatus != PKIX_RevStatus_Success &&
-                                                revStatus != PKIX_RevStatus_Revoked) {
-                        /* we'll retry */
-                        PKIX_DECREF(response);
-                        retry = PR_TRUE;
-                        currentStage = stagePOST;
-                        revStatus = PKIX_RevStatus_NoInfo;
-                        if (pkixErrorResult) {
-                                PKIX_PL_Object_DecRef((PKIX_PL_Object*)pkixErrorResult,
-                                                      plContext);
-                                pkixErrorResult = NULL;
-                        }
-                }
-        } while (retry);
-
-cleanup:
-        if (revStatus == PKIX_RevStatus_NoInfo && (uriFound || 
-	    methodFlags & PKIX_REV_M_REQUIRE_INFO_ON_MISSING_SOURCE) &&
-            methodFlags & PKIX_REV_M_FAIL_ON_MISSING_FRESH_INFO) {
-            revStatus = PKIX_RevStatus_Revoked;
-        }
-        *pRevStatus = revStatus;
-
-        /* ocsp carries only three statuses: good, bad, and unknown.
-         * revStatus is used to pass them. reasonCode is always set
-         * to be unknown. */
-        *pReasonCode = crlEntryReasonUnspecified;
-
-        PKIX_DECREF(cid);
-        PKIX_DECREF(request);
-        PKIX_DECREF(response);
-
-        PKIX_RETURN(OCSPCHECKER);
-}
-
-