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/* 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/. */
/*
* p7content -- A command to display pkcs7 content.
*/
#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 secuPWData pwdata = { PW_NONE, 0 };
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 = NULL;
SEC_PKCS7DecoderContext *dcx;
if (SECU_ReadDERFromFile(&derdata, in, PR_FALSE, 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, &pwdata,
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");
SECITEM_FreeItem(&derdata, PR_FALSE);
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;
int error = 0;
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:f:");
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);
error = -1;
goto done;
}
break;
case 'o':
outFile = fopen(optstate->value, "w");
if (!outFile) {
fprintf(stderr, "%s: unable to open \"%s\" for writing\n",
progName, optstate->value);
error = -1;
goto done;
}
break;
case 'p':
pwdata.source = PW_PLAINTEXT;
pwdata.data = PORT_Strdup(optstate->value);
break;
case 'f':
pwdata.source = PW_FROMFILE;
pwdata.data = PORT_Strdup(optstate->value);
break;
default:
Usage(progName);
break;
}
}
PL_DestroyOptState(optstate);
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);
error = -1;
goto done;
}
PK11_SetPasswordFunc(SECU_GetModulePassword);
if (DecodeAndPrintFile(outFile, inFile, progName)) {
SECU_PrintError(progName, "problem decoding data");
error = -1;
goto done;
}
done:
if (inFile && inFile != PR_STDIN) {
PR_Close(inFile);
}
if (outFile && outFile != stdout) {
fclose(outFile);
}
if (NSS_Shutdown() != SECSuccess) {
error = -1;
}
return error;
}
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