gecko-dev/security/nss/cmd/p7content/p7content.c
2007-01-25 00:52:26 +00:00

295 lines
7.6 KiB
C

/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* 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 the Initial Developer are Copyright (C) 1994-2000
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/*
* p7content -- A command to display pkcs7 content.
*
* $Id: p7content.c,v 1.11 2007/01/25 00:52:25 alexei.volkov.bugs%sun.com Exp $
*/
#include "nspr.h"
#include "secutil.h"
#include "plgetopt.h"
#include "secpkcs7.h"
#include "cert.h"
#include "certdb.h"
#include "nss.h"
#include "pk11pub.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
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 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;
}
char* KeyDbPassword = 0;
char* MyPK11PasswordFunc (PK11SlotInfo *slot, PRBool retry, void* arg)
{
char *ret=0;
if (retry == PR_TRUE)
return NULL;
ret = PL_strdup (KeyDbPassword);
return ret;
}
int
DecodeAndPrintFile(FILE *out, PRFileDesc *in, char *progName)
{
SECItem derdata;
SEC_PKCS7ContentInfo *cinfo = NULL;
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, NULL, 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, (char *)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 %s\n", 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 %s\n", signer_ename);
PORT_Free(signer_ename);
} else {
fprintf(out, "No signer email address.\n");
}
signing_time = SEC_PKCS7GetSigningTime(cinfo);
if (signing_time != NULL) {
SECU_PrintTimeChoice(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;
PLOptState *optstate;
PLOptStatus status;
SECStatus rv;
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:p:");
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 reading\n",
progName, optstate->value);
return -1;
}
break;
case 'o':
outFile = fopen(optstate->value, "w");
if (!outFile) {
fprintf(stderr, "%s: unable to open \"%s\" for writing\n",
progName, optstate->value);
return -1;
}
break;
case 'p':
KeyDbPassword = strdup (optstate->value);
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);
rv = NSS_Init(SECU_ConfigDirectory(NULL));
if (rv != SECSuccess) {
SECU_PrintPRandOSError(progName);
return -1;
}
PK11_SetPasswordFunc (MyPK11PasswordFunc);
if (DecodeAndPrintFile(outFile, inFile, progName)) {
SECU_PrintError(progName, "problem decoding data");
return -1;
}
if (NSS_Shutdown() != SECSuccess) {
exit(1);
}
return 0;
}