p7content.c
上传用户:lyxiangda
上传日期:2007-01-12
资源大小:3042k
文件大小:8k
- /*
- * The contents of this file are subject to the Mozilla Public
- * License Version 1.1 (the "License"); you may not use this file
- * except in compliance with the License. You may obtain a copy of
- * the License at http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS
- * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- * implied. See the License for the specific language governing
- * rights and limitations under the License.
- *
- * The Original Code is the Netscape security libraries.
- *
- * The Initial Developer of the Original Code is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1994-2000 Netscape Communications Corporation. All
- * Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL"), in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your
- * version of this file only under the terms of the GPL and not to
- * allow others to use your version of this file under the MPL,
- * indicate your decision by deleting the provisions above and
- * replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient
- * may use your version of this file under either the MPL or the
- * GPL.
- */
- /*
- * p7content -- A command to display pkcs7 content.
- *
- * $Id: p7content.c,v 1.1 2000/03/31 20:12:19 relyea%netscape.com Exp $
- */
- #include "nspr.h"
- #include "secutil.h"
- #include "plgetopt.h"
- #include "secpkcs7.h"
- #include "cert.h"
- #include "certdb.h"
- #include "cdbhdl.h"
- #if defined(XP_UNIX)
- #include <unistd.h>
- #endif
- #include <stdio.h>
- #include <string.h>
- #if (defined(XP_WIN) && !defined(WIN32)) || (defined(__sun) && !defined(SVR4))
- extern int fwrite(char *, size_t, size_t, FILE*);
- extern int fprintf(FILE *, char *, ...);
- #endif
- extern void SEC_Init(void); /* XXX */
- static void
- Usage(char *progName)
- {
- fprintf(stderr,
- "Usage: %s [-d dbdir] [-i input] [-o output]n",
- progName);
- fprintf(stderr,
- "%-20s Key/Cert database directory (default is ~/.netscape)n",
- "-d dbdir");
- fprintf(stderr, "%-20s Define an input file to use (default is stdin)n",
- "-i input");
- fprintf(stderr, "%-20s Define an output file to use (default is stdout)n",
- "-o output");
- exit(-1);
- }
- static SECKEYKeyDBHandle *
- OpenKeyDB(char *progName)
- {
- SECKEYKeyDBHandle *keyHandle;
- keyHandle = SECU_OpenKeyDB(PR_FALSE);
- if (keyHandle == NULL) {
- SECU_PrintError(progName, "could not open key database");
- return NULL;
- }
- return(keyHandle);
- }
- static CERTCertDBHandle certHandleStatic; /* avoid having to allocate */
- static CERTCertDBHandle *
- OpenCertDB(char *progName)
- {
- CERTCertDBHandle *certHandle;
- SECStatus rv;
- certHandle = &certHandleStatic;
- rv = CERT_OpenCertDB(certHandle, PR_FALSE, SECU_CertDBNameCallback, NULL);
- if (rv != SECSuccess) {
- SECU_PrintError(progName, "could not open cert database");
- return NULL;
- }
- return certHandle;
- }
- static PRBool saw_content;
- static void
- PrintBytes(void *arg, const char *buf, unsigned long len)
- {
- FILE *out;
- out = arg;
- fwrite (buf, len, 1, out);
- saw_content = PR_TRUE;
- }
- /*
- * XXX Someday we may want to do real policy stuff here. This allows
- * anything to be decrypted, which is okay for a test program but does
- * not set an example of how a real client with a real policy would
- * need to do it.
- */
- static PRBool
- decryption_allowed(SECAlgorithmID *algid, PK11SymKey *key)
- {
- return PR_TRUE;
- }
- int
- DecodeAndPrintFile(FILE *out, PRFileDesc *in, char *progName)
- {
- SECItem derdata;
- SEC_PKCS7ContentInfo *cinfo;
- SEC_PKCS7DecoderContext *dcx;
- if (SECU_ReadDERFromFile(&derdata, in, PR_FALSE)) {
- SECU_PrintError(progName, "error converting der");
- return -1;
- }
- fprintf(out,
- "Content printed between bars (newline added before second bar):");
- fprintf(out, "n---------------------------------------------n");
- saw_content = PR_FALSE;
- dcx = SEC_PKCS7DecoderStart(PrintBytes, out, SECU_GetPassword, NULL,
- NULL, NULL, decryption_allowed);
- if (dcx != NULL) {
- #if 0 /* Test that decoder works when data is really streaming in. */
- {
- unsigned long i;
- for (i = 0; i < derdata.len; i++)
- SEC_PKCS7DecoderUpdate(dcx, derdata.data + i, 1);
- }
- #else
- SEC_PKCS7DecoderUpdate(dcx, derdata.data, derdata.len);
- #endif
- cinfo = SEC_PKCS7DecoderFinish(dcx);
- }
- fprintf(out, "n---------------------------------------------n");
- if (cinfo == NULL)
- return -1;
- fprintf(out, "Content was%s encrypted.n",
- SEC_PKCS7ContentIsEncrypted(cinfo) ? "" : " not");
- if (SEC_PKCS7ContentIsSigned(cinfo)) {
- char *signer_cname, *signer_ename;
- SECItem *signing_time;
- if (saw_content) {
- fprintf(out, "Signature is ");
- PORT_SetError(0);
- if (SEC_PKCS7VerifySignature(cinfo, certUsageEmailSigner, PR_FALSE))
- fprintf(out, "valid.n");
- else
- fprintf(out, "invalid (Reason: %s).n",
- SECU_Strerror(PORT_GetError()));
- } else {
- fprintf(out,
- "Content is detached; signature cannot be verified.n");
- }
- signer_cname = SEC_PKCS7GetSignerCommonName(cinfo);
- if (signer_cname != NULL) {
- fprintf(out, "The signer's common name is %sn", signer_cname);
- PORT_Free(signer_cname);
- } else {
- fprintf(out, "No signer common name.n");
- }
- signer_ename = SEC_PKCS7GetSignerEmailAddress(cinfo);
- if (signer_ename != NULL) {
- fprintf(out, "The signer's email address is %sn", signer_ename);
- PORT_Free(signer_ename);
- } else {
- fprintf(out, "No signer email address.n");
- }
- signing_time = SEC_PKCS7GetSigningTime(cinfo);
- if (signing_time != NULL) {
- SECU_PrintUTCTime(out, signing_time, "Signing time", 0);
- } else {
- fprintf(out, "No signing time included.n");
- }
- } else {
- fprintf(out, "Content was not signed.n");
- }
- fprintf(out, "There were%s certs or crls included.n",
- SEC_PKCS7ContainsCertsOrCrls(cinfo) ? "" : " no");
- SEC_PKCS7DestroyContentInfo(cinfo);
- return 0;
- }
- /*
- * Print the contents of a PKCS7 message, indicating signatures, etc.
- */
- int
- main(int argc, char **argv)
- {
- char *progName;
- FILE *outFile;
- PRFileDesc *inFile;
- SECKEYKeyDBHandle *keyHandle;
- CERTCertDBHandle *certHandle;
- PLOptState *optstate;
- PLOptStatus status;
- progName = strrchr(argv[0], '/');
- progName = progName ? progName+1 : argv[0];
- inFile = NULL;
- outFile = NULL;
- /*
- * Parse command line arguments
- */
- optstate = PL_CreateOptState(argc, argv, "d:i:o:");
- while ((status = PL_GetNextOpt(optstate)) == PL_OPT_OK) {
- switch (optstate->option) {
- case 'd':
- SECU_ConfigDirectory(optstate->value);
- break;
- case 'i':
- inFile = PR_Open(optstate->value, PR_RDONLY, 0);
- if (!inFile) {
- fprintf(stderr, "%s: unable to open "%s" for readingn",
- progName, optstate->value);
- return -1;
- }
- break;
- case 'o':
- outFile = fopen(optstate->value, "w");
- if (!outFile) {
- fprintf(stderr, "%s: unable to open "%s" for writingn",
- progName, optstate->value);
- return -1;
- }
- break;
- default:
- Usage(progName);
- break;
- }
- }
- if (status == PL_OPT_BAD)
- Usage(progName);
- if (!inFile) inFile = PR_STDIN;
- if (!outFile) outFile = stdout;
- /* Call the initialization routines */
- PR_Init(PR_SYSTEM_THREAD, PR_PRIORITY_NORMAL, 1);
- SECU_PKCS11Init(PR_FALSE);
- SEC_Init();
- /* open key database */
- keyHandle = OpenKeyDB(progName);
- if (keyHandle == NULL) {
- return -1;
- }
- SECKEY_SetDefaultKeyDB(keyHandle);
- /* open cert database */
- certHandle = OpenCertDB(progName);
- if (certHandle == NULL) {
- return -1;
- }
- CERT_SetDefaultCertDB(certHandle);
- if (DecodeAndPrintFile(outFile, inFile, progName)) {
- SECU_PrintError(progName, "problem decoding data");
- return -1;
- }
- return 0;
- }