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ruby--ruby/ext/openssl/ossl_pkcs7.c
Kazuki Yamaguchi a01daab656 [ruby/openssl] x509, ssl, pkcs7: try to parse as DER-encoding first 
Methods that take both PEM-encoding and DER-encoding have not been
consistent in the order in which encoding to attempt to parse.

A DER-encoding may contain a valid PEM block ("\n-----BEGIN ..-----" to
"-----END ...-----") embedded within it. Also, the PEM-encoding parser
allows arbitrary data around the PEM block and silently skips it. As a
result, attempting to parse data in DER-encoding as PEM-encoding first
can incorrectly finds the embedded PEM block instead.

This commit ensures that DER encoding will always be attempted before
PEM encoding. OpenSSL::X509::Certificate is one of the updated classes.
With this, the following will always be true:

    # obj is an OpenSSL::X509::Certificate
    obj == OpenSSL::X509::Certificate.new(obj.to_der)
    obj == OpenSSL::X509::Certificate.new(obj.to_pem)

https://github.com/ruby/openssl/commit/b280eb1fd0
2021-07-18 17:44:54 +09:00

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/*
* 'OpenSSL for Ruby' project
* Copyright (C) 2001-2002 Michal Rokos <m.rokos@sh.cvut.cz>
* All rights reserved.
*/
/*
* This program is licensed under the same licence as Ruby.
* (See the file 'LICENCE'.)
*/
#include "ossl.h"
#define NewPKCS7si(klass) \
TypedData_Wrap_Struct((klass), &ossl_pkcs7_signer_info_type, 0)
#define SetPKCS7si(obj, p7si) do { \
if (!(p7si)) { \
ossl_raise(rb_eRuntimeError, "PKCS7si wasn't initialized."); \
} \
RTYPEDDATA_DATA(obj) = (p7si); \
} while (0)
#define GetPKCS7si(obj, p7si) do { \
TypedData_Get_Struct((obj), PKCS7_SIGNER_INFO, &ossl_pkcs7_signer_info_type, (p7si)); \
if (!(p7si)) { \
ossl_raise(rb_eRuntimeError, "PKCS7si wasn't initialized."); \
} \
} while (0)
#define NewPKCS7ri(klass) \
TypedData_Wrap_Struct((klass), &ossl_pkcs7_recip_info_type, 0)
#define SetPKCS7ri(obj, p7ri) do { \
if (!(p7ri)) { \
ossl_raise(rb_eRuntimeError, "PKCS7ri wasn't initialized."); \
} \
RTYPEDDATA_DATA(obj) = (p7ri); \
} while (0)
#define GetPKCS7ri(obj, p7ri) do { \
TypedData_Get_Struct((obj), PKCS7_RECIP_INFO, &ossl_pkcs7_recip_info_type, (p7ri)); \
if (!(p7ri)) { \
ossl_raise(rb_eRuntimeError, "PKCS7ri wasn't initialized."); \
} \
} while (0)
#define numberof(ary) (int)(sizeof(ary)/sizeof((ary)[0]))
#define ossl_pkcs7_set_data(o,v) rb_iv_set((o), "@data", (v))
#define ossl_pkcs7_get_data(o) rb_iv_get((o), "@data")
#define ossl_pkcs7_set_err_string(o,v) rb_iv_set((o), "@error_string", (v))
#define ossl_pkcs7_get_err_string(o) rb_iv_get((o), "@error_string")
/*
* Classes
*/
VALUE cPKCS7;
VALUE cPKCS7Signer;
VALUE cPKCS7Recipient;
VALUE ePKCS7Error;
static void
ossl_pkcs7_free(void *ptr)
{
PKCS7_free(ptr);
}
const rb_data_type_t ossl_pkcs7_type = {
"OpenSSL/PKCS7",
{
0, ossl_pkcs7_free,
},
0, 0, RUBY_TYPED_FREE_IMMEDIATELY,
};
static void
ossl_pkcs7_signer_info_free(void *ptr)
{
PKCS7_SIGNER_INFO_free(ptr);
}
static const rb_data_type_t ossl_pkcs7_signer_info_type = {
"OpenSSL/PKCS7/SIGNER_INFO",
{
0, ossl_pkcs7_signer_info_free,
},
0, 0, RUBY_TYPED_FREE_IMMEDIATELY,
};
static void
ossl_pkcs7_recip_info_free(void *ptr)
{
PKCS7_RECIP_INFO_free(ptr);
}
static const rb_data_type_t ossl_pkcs7_recip_info_type = {
"OpenSSL/PKCS7/RECIP_INFO",
{
0, ossl_pkcs7_recip_info_free,
},
0, 0, RUBY_TYPED_FREE_IMMEDIATELY,
};
/*
* Public
* (MADE PRIVATE UNTIL SOMEBODY WILL NEED THEM)
*/
static PKCS7_SIGNER_INFO *
ossl_PKCS7_SIGNER_INFO_dup(PKCS7_SIGNER_INFO *si)
{
PKCS7_SIGNER_INFO *si_new = ASN1_dup((i2d_of_void *)i2d_PKCS7_SIGNER_INFO,
(d2i_of_void *)d2i_PKCS7_SIGNER_INFO,
si);
if (si_new && si->pkey) {
EVP_PKEY_up_ref(si->pkey);
si_new->pkey = si->pkey;
}
return si_new;
}
static PKCS7_RECIP_INFO *
ossl_PKCS7_RECIP_INFO_dup(PKCS7_RECIP_INFO *si)
{
return ASN1_dup((i2d_of_void *)i2d_PKCS7_RECIP_INFO,
(d2i_of_void *)d2i_PKCS7_RECIP_INFO,
si);
}
static VALUE
ossl_pkcs7si_new(PKCS7_SIGNER_INFO *p7si)
{
PKCS7_SIGNER_INFO *pkcs7;
VALUE obj;
obj = NewPKCS7si(cPKCS7Signer);
pkcs7 = p7si ? ossl_PKCS7_SIGNER_INFO_dup(p7si) : PKCS7_SIGNER_INFO_new();
if (!pkcs7) ossl_raise(ePKCS7Error, NULL);
SetPKCS7si(obj, pkcs7);
return obj;
}
static VALUE
ossl_pkcs7ri_new(PKCS7_RECIP_INFO *p7ri)
{
PKCS7_RECIP_INFO *pkcs7;
VALUE obj;
obj = NewPKCS7ri(cPKCS7Recipient);
pkcs7 = p7ri ? ossl_PKCS7_RECIP_INFO_dup(p7ri) : PKCS7_RECIP_INFO_new();
if (!pkcs7) ossl_raise(ePKCS7Error, NULL);
SetPKCS7ri(obj, pkcs7);
return obj;
}
/*
* call-seq:
* PKCS7.read_smime(string) => pkcs7
*/
static VALUE
ossl_pkcs7_s_read_smime(VALUE klass, VALUE arg)
{
BIO *in, *out;
PKCS7 *pkcs7;
VALUE ret, data;
ret = NewPKCS7(cPKCS7);
in = ossl_obj2bio(&arg);
out = NULL;
pkcs7 = SMIME_read_PKCS7(in, &out);
BIO_free(in);
if(!pkcs7) ossl_raise(ePKCS7Error, NULL);
data = out ? ossl_membio2str(out) : Qnil;
SetPKCS7(ret, pkcs7);
ossl_pkcs7_set_data(ret, data);
ossl_pkcs7_set_err_string(ret, Qnil);
return ret;
}
/*
* call-seq:
* PKCS7.write_smime(pkcs7 [, data [, flags]]) => string
*/
static VALUE
ossl_pkcs7_s_write_smime(int argc, VALUE *argv, VALUE klass)
{
VALUE pkcs7, data, flags;
BIO *out, *in;
PKCS7 *p7;
VALUE str;
int flg;
rb_scan_args(argc, argv, "12", &pkcs7, &data, &flags);
flg = NIL_P(flags) ? 0 : NUM2INT(flags);
if(NIL_P(data)) data = ossl_pkcs7_get_data(pkcs7);
GetPKCS7(pkcs7, p7);
if(!NIL_P(data) && PKCS7_is_detached(p7))
flg |= PKCS7_DETACHED;
in = NIL_P(data) ? NULL : ossl_obj2bio(&data);
if(!(out = BIO_new(BIO_s_mem()))){
BIO_free(in);
ossl_raise(ePKCS7Error, NULL);
}
if(!SMIME_write_PKCS7(out, p7, in, flg)){
BIO_free(out);
BIO_free(in);
ossl_raise(ePKCS7Error, NULL);
}
BIO_free(in);
str = ossl_membio2str(out);
return str;
}
/*
* call-seq:
* PKCS7.sign(cert, key, data, [, certs [, flags]]) => pkcs7
*/
static VALUE
ossl_pkcs7_s_sign(int argc, VALUE *argv, VALUE klass)
{
VALUE cert, key, data, certs, flags;
X509 *x509;
EVP_PKEY *pkey;
BIO *in;
STACK_OF(X509) *x509s;
int flg, status = 0;
PKCS7 *pkcs7;
VALUE ret;
rb_scan_args(argc, argv, "32", &cert, &key, &data, &certs, &flags);
x509 = GetX509CertPtr(cert); /* NO NEED TO DUP */
pkey = GetPrivPKeyPtr(key); /* NO NEED TO DUP */
flg = NIL_P(flags) ? 0 : NUM2INT(flags);
ret = NewPKCS7(cPKCS7);
in = ossl_obj2bio(&data);
if(NIL_P(certs)) x509s = NULL;
else{
x509s = ossl_protect_x509_ary2sk(certs, &status);
if(status){
BIO_free(in);
rb_jump_tag(status);
}
}
if(!(pkcs7 = PKCS7_sign(x509, pkey, x509s, in, flg))){
BIO_free(in);
sk_X509_pop_free(x509s, X509_free);
ossl_raise(ePKCS7Error, NULL);
}
SetPKCS7(ret, pkcs7);
ossl_pkcs7_set_data(ret, data);
ossl_pkcs7_set_err_string(ret, Qnil);
BIO_free(in);
sk_X509_pop_free(x509s, X509_free);
return ret;
}
/*
* call-seq:
* PKCS7.encrypt(certs, data, [, cipher [, flags]]) => pkcs7
*/
static VALUE
ossl_pkcs7_s_encrypt(int argc, VALUE *argv, VALUE klass)
{
VALUE certs, data, cipher, flags;
STACK_OF(X509) *x509s;
BIO *in;
const EVP_CIPHER *ciph;
int flg, status = 0;
VALUE ret;
PKCS7 *p7;
rb_scan_args(argc, argv, "22", &certs, &data, &cipher, &flags);
if(NIL_P(cipher)){
#if !defined(OPENSSL_NO_RC2)
ciph = EVP_rc2_40_cbc();
#elif !defined(OPENSSL_NO_DES)
ciph = EVP_des_ede3_cbc();
#elif !defined(OPENSSL_NO_RC2)
ciph = EVP_rc2_40_cbc();
#elif !defined(OPENSSL_NO_AES)
ciph = EVP_EVP_aes_128_cbc();
#else
ossl_raise(ePKCS7Error, "Must specify cipher");
#endif
}
else ciph = ossl_evp_get_cipherbyname(cipher);
flg = NIL_P(flags) ? 0 : NUM2INT(flags);
ret = NewPKCS7(cPKCS7);
in = ossl_obj2bio(&data);
x509s = ossl_protect_x509_ary2sk(certs, &status);
if(status){
BIO_free(in);
rb_jump_tag(status);
}
if(!(p7 = PKCS7_encrypt(x509s, in, (EVP_CIPHER*)ciph, flg))){
BIO_free(in);
sk_X509_pop_free(x509s, X509_free);
ossl_raise(ePKCS7Error, NULL);
}
BIO_free(in);
SetPKCS7(ret, p7);
ossl_pkcs7_set_data(ret, data);
sk_X509_pop_free(x509s, X509_free);
return ret;
}
static VALUE
ossl_pkcs7_alloc(VALUE klass)
{
PKCS7 *pkcs7;
VALUE obj;
obj = NewPKCS7(klass);
if (!(pkcs7 = PKCS7_new())) {
ossl_raise(ePKCS7Error, NULL);
}
SetPKCS7(obj, pkcs7);
return obj;
}
/*
* call-seq:
* PKCS7.new => pkcs7
* PKCS7.new(string) => pkcs7
*
* Many methods in this class aren't documented.
*/
static VALUE
ossl_pkcs7_initialize(int argc, VALUE *argv, VALUE self)
{
PKCS7 *p7, *p7_orig = RTYPEDDATA_DATA(self);
BIO *in;
VALUE arg;
if(rb_scan_args(argc, argv, "01", &arg) == 0)
return self;
arg = ossl_to_der_if_possible(arg);
in = ossl_obj2bio(&arg);
p7 = d2i_PKCS7_bio(in, NULL);
if (!p7) {
OSSL_BIO_reset(in);
p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
}
BIO_free(in);
if (!p7)
ossl_raise(rb_eArgError, "Could not parse the PKCS7");
RTYPEDDATA_DATA(self) = p7;
PKCS7_free(p7_orig);
ossl_pkcs7_set_data(self, Qnil);
ossl_pkcs7_set_err_string(self, Qnil);
return self;
}
static VALUE
ossl_pkcs7_copy(VALUE self, VALUE other)
{
PKCS7 *a, *b, *pkcs7;
rb_check_frozen(self);
if (self == other) return self;
GetPKCS7(self, a);
GetPKCS7(other, b);
pkcs7 = PKCS7_dup(b);
if (!pkcs7) {
ossl_raise(ePKCS7Error, NULL);
}
DATA_PTR(self) = pkcs7;
PKCS7_free(a);
return self;
}
static int
ossl_pkcs7_sym2typeid(VALUE sym)
{
int i, ret = Qnil;
const char *s;
size_t l;
static const struct {
char name[20];
int nid;
} p7_type_tab[] = {
{ "signed", NID_pkcs7_signed },
{ "data", NID_pkcs7_data },
{ "signedAndEnveloped", NID_pkcs7_signedAndEnveloped },
{ "enveloped", NID_pkcs7_enveloped },
{ "encrypted", NID_pkcs7_encrypted },
{ "digest", NID_pkcs7_digest },
};
if (SYMBOL_P(sym)) sym = rb_sym2str(sym);
else StringValue(sym);
RSTRING_GETMEM(sym, s, l);
for(i = 0; ; i++){
if(i == numberof(p7_type_tab))
ossl_raise(ePKCS7Error, "unknown type \"%"PRIsVALUE"\"", sym);
if(strlen(p7_type_tab[i].name) != l) continue;
if(strcmp(p7_type_tab[i].name, s) == 0){
ret = p7_type_tab[i].nid;
break;
}
}
return ret;
}
/*
* call-seq:
* pkcs7.type = type => type
*/
static VALUE
ossl_pkcs7_set_type(VALUE self, VALUE type)
{
PKCS7 *p7;
GetPKCS7(self, p7);
if(!PKCS7_set_type(p7, ossl_pkcs7_sym2typeid(type)))
ossl_raise(ePKCS7Error, NULL);
return type;
}
/*
* call-seq:
* pkcs7.type => string or nil
*/
static VALUE
ossl_pkcs7_get_type(VALUE self)
{
PKCS7 *p7;
GetPKCS7(self, p7);
if(PKCS7_type_is_signed(p7))
return ID2SYM(rb_intern("signed"));
if(PKCS7_type_is_encrypted(p7))
return ID2SYM(rb_intern("encrypted"));
if(PKCS7_type_is_enveloped(p7))
return ID2SYM(rb_intern("enveloped"));
if(PKCS7_type_is_signedAndEnveloped(p7))
return ID2SYM(rb_intern("signedAndEnveloped"));
if(PKCS7_type_is_data(p7))
return ID2SYM(rb_intern("data"));
return Qnil;
}
static VALUE
ossl_pkcs7_set_detached(VALUE self, VALUE flag)
{
PKCS7 *p7;
GetPKCS7(self, p7);
if(flag != Qtrue && flag != Qfalse)
ossl_raise(ePKCS7Error, "must specify a boolean");
if(!PKCS7_set_detached(p7, flag == Qtrue ? 1 : 0))
ossl_raise(ePKCS7Error, NULL);
return flag;
}
static VALUE
ossl_pkcs7_get_detached(VALUE self)
{
PKCS7 *p7;
GetPKCS7(self, p7);
return PKCS7_get_detached(p7) ? Qtrue : Qfalse;
}
static VALUE
ossl_pkcs7_detached_p(VALUE self)
{
PKCS7 *p7;
GetPKCS7(self, p7);
return PKCS7_is_detached(p7) ? Qtrue : Qfalse;
}
static VALUE
ossl_pkcs7_set_cipher(VALUE self, VALUE cipher)
{
PKCS7 *pkcs7;
GetPKCS7(self, pkcs7);
if (!PKCS7_set_cipher(pkcs7, ossl_evp_get_cipherbyname(cipher))) {
ossl_raise(ePKCS7Error, NULL);
}
return cipher;
}
static VALUE
ossl_pkcs7_add_signer(VALUE self, VALUE signer)
{
PKCS7 *pkcs7;
PKCS7_SIGNER_INFO *si, *si_new;
GetPKCS7(self, pkcs7);
GetPKCS7si(signer, si);
si_new = ossl_PKCS7_SIGNER_INFO_dup(si);
if (!si_new)
ossl_raise(ePKCS7Error, "PKCS7_SIGNER_INFO_dup");
if (PKCS7_add_signer(pkcs7, si_new) != 1) {
PKCS7_SIGNER_INFO_free(si_new);
ossl_raise(ePKCS7Error, "PKCS7_add_signer");
}
return self;
}
static VALUE
ossl_pkcs7_get_signer(VALUE self)
{
PKCS7 *pkcs7;
STACK_OF(PKCS7_SIGNER_INFO) *sk;
PKCS7_SIGNER_INFO *si;
int num, i;
VALUE ary;
GetPKCS7(self, pkcs7);
if (!(sk = PKCS7_get_signer_info(pkcs7))) {
OSSL_Debug("OpenSSL::PKCS7#get_signer_info == NULL!");
return rb_ary_new();
}
if ((num = sk_PKCS7_SIGNER_INFO_num(sk)) < 0) {
ossl_raise(ePKCS7Error, "Negative number of signers!");
}
ary = rb_ary_new2(num);
for (i=0; i<num; i++) {
si = sk_PKCS7_SIGNER_INFO_value(sk, i);
rb_ary_push(ary, ossl_pkcs7si_new(si));
}
return ary;
}
static VALUE
ossl_pkcs7_add_recipient(VALUE self, VALUE recip)
{
PKCS7 *pkcs7;
PKCS7_RECIP_INFO *ri, *ri_new;
GetPKCS7(self, pkcs7);
GetPKCS7ri(recip, ri);
ri_new = ossl_PKCS7_RECIP_INFO_dup(ri);
if (!ri_new)
ossl_raise(ePKCS7Error, "PKCS7_RECIP_INFO_dup");
if (PKCS7_add_recipient_info(pkcs7, ri_new) != 1) {
PKCS7_RECIP_INFO_free(ri_new);
ossl_raise(ePKCS7Error, "PKCS7_add_recipient_info");
}
return self;
}
static VALUE
ossl_pkcs7_get_recipient(VALUE self)
{
PKCS7 *pkcs7;
STACK_OF(PKCS7_RECIP_INFO) *sk;
PKCS7_RECIP_INFO *si;
int num, i;
VALUE ary;
GetPKCS7(self, pkcs7);
if (PKCS7_type_is_enveloped(pkcs7))
sk = pkcs7->d.enveloped->recipientinfo;
else if (PKCS7_type_is_signedAndEnveloped(pkcs7))
sk = pkcs7->d.signed_and_enveloped->recipientinfo;
else sk = NULL;
if (!sk) return rb_ary_new();
if ((num = sk_PKCS7_RECIP_INFO_num(sk)) < 0) {
ossl_raise(ePKCS7Error, "Negative number of recipient!");
}
ary = rb_ary_new2(num);
for (i=0; i<num; i++) {
si = sk_PKCS7_RECIP_INFO_value(sk, i);
rb_ary_push(ary, ossl_pkcs7ri_new(si));
}
return ary;
}
static VALUE
ossl_pkcs7_add_certificate(VALUE self, VALUE cert)
{
PKCS7 *pkcs7;
X509 *x509;
GetPKCS7(self, pkcs7);
x509 = GetX509CertPtr(cert); /* NO NEED TO DUP */
if (!PKCS7_add_certificate(pkcs7, x509)){
ossl_raise(ePKCS7Error, NULL);
}
return self;
}
static STACK_OF(X509) *
pkcs7_get_certs(VALUE self)
{
PKCS7 *pkcs7;
STACK_OF(X509) *certs;
int i;
GetPKCS7(self, pkcs7);
i = OBJ_obj2nid(pkcs7->type);
switch(i){
case NID_pkcs7_signed:
certs = pkcs7->d.sign->cert;
break;
case NID_pkcs7_signedAndEnveloped:
certs = pkcs7->d.signed_and_enveloped->cert;
break;
default:
certs = NULL;
}
return certs;
}
static STACK_OF(X509_CRL) *
pkcs7_get_crls(VALUE self)
{
PKCS7 *pkcs7;
STACK_OF(X509_CRL) *crls;
int i;
GetPKCS7(self, pkcs7);
i = OBJ_obj2nid(pkcs7->type);
switch(i){
case NID_pkcs7_signed:
crls = pkcs7->d.sign->crl;
break;
case NID_pkcs7_signedAndEnveloped:
crls = pkcs7->d.signed_and_enveloped->crl;
break;
default:
crls = NULL;
}
return crls;
}
static VALUE
ossl_pkcs7_set_certs_i(RB_BLOCK_CALL_FUNC_ARGLIST(i, arg))
{
return ossl_pkcs7_add_certificate(arg, i);
}
static VALUE
ossl_pkcs7_set_certificates(VALUE self, VALUE ary)
{
STACK_OF(X509) *certs;
X509 *cert;
certs = pkcs7_get_certs(self);
while((cert = sk_X509_pop(certs))) X509_free(cert);
rb_block_call(ary, rb_intern("each"), 0, 0, ossl_pkcs7_set_certs_i, self);
return ary;
}
static VALUE
ossl_pkcs7_get_certificates(VALUE self)
{
return ossl_x509_sk2ary(pkcs7_get_certs(self));
}
static VALUE
ossl_pkcs7_add_crl(VALUE self, VALUE crl)
{
PKCS7 *pkcs7;
X509_CRL *x509crl;
GetPKCS7(self, pkcs7); /* NO DUP needed! */
x509crl = GetX509CRLPtr(crl);
if (!PKCS7_add_crl(pkcs7, x509crl)) {
ossl_raise(ePKCS7Error, NULL);
}
return self;
}
static VALUE
ossl_pkcs7_set_crls_i(RB_BLOCK_CALL_FUNC_ARGLIST(i, arg))
{
return ossl_pkcs7_add_crl(arg, i);
}
static VALUE
ossl_pkcs7_set_crls(VALUE self, VALUE ary)
{
STACK_OF(X509_CRL) *crls;
X509_CRL *crl;
crls = pkcs7_get_crls(self);
while((crl = sk_X509_CRL_pop(crls))) X509_CRL_free(crl);
rb_block_call(ary, rb_intern("each"), 0, 0, ossl_pkcs7_set_crls_i, self);
return ary;
}
static VALUE
ossl_pkcs7_get_crls(VALUE self)
{
return ossl_x509crl_sk2ary(pkcs7_get_crls(self));
}
static VALUE
ossl_pkcs7_verify(int argc, VALUE *argv, VALUE self)
{
VALUE certs, store, indata, flags;
STACK_OF(X509) *x509s;
X509_STORE *x509st;
int flg, ok, status = 0;
BIO *in, *out;
PKCS7 *p7;
VALUE data;
const char *msg;
GetPKCS7(self, p7);
rb_scan_args(argc, argv, "22", &certs, &store, &indata, &flags);
x509st = GetX509StorePtr(store);
flg = NIL_P(flags) ? 0 : NUM2INT(flags);
if(NIL_P(indata)) indata = ossl_pkcs7_get_data(self);
in = NIL_P(indata) ? NULL : ossl_obj2bio(&indata);
if(NIL_P(certs)) x509s = NULL;
else{
x509s = ossl_protect_x509_ary2sk(certs, &status);
if(status){
BIO_free(in);
rb_jump_tag(status);
}
}
if(!(out = BIO_new(BIO_s_mem()))){
BIO_free(in);
sk_X509_pop_free(x509s, X509_free);
ossl_raise(ePKCS7Error, NULL);
}
ok = PKCS7_verify(p7, x509s, x509st, in, out, flg);
BIO_free(in);
sk_X509_pop_free(x509s, X509_free);
if (ok < 0) ossl_raise(ePKCS7Error, "PKCS7_verify");
msg = ERR_reason_error_string(ERR_peek_error());
ossl_pkcs7_set_err_string(self, msg ? rb_str_new2(msg) : Qnil);
ossl_clear_error();
data = ossl_membio2str(out);
ossl_pkcs7_set_data(self, data);
return (ok == 1) ? Qtrue : Qfalse;
}
static VALUE
ossl_pkcs7_decrypt(int argc, VALUE *argv, VALUE self)
{
VALUE pkey, cert, flags;
EVP_PKEY *key;
X509 *x509;
int flg;
PKCS7 *p7;
BIO *out;
VALUE str;
rb_scan_args(argc, argv, "12", &pkey, &cert, &flags);
key = GetPrivPKeyPtr(pkey); /* NO NEED TO DUP */
x509 = NIL_P(cert) ? NULL : GetX509CertPtr(cert); /* NO NEED TO DUP */
flg = NIL_P(flags) ? 0 : NUM2INT(flags);
GetPKCS7(self, p7);
if(!(out = BIO_new(BIO_s_mem())))
ossl_raise(ePKCS7Error, NULL);
if(!PKCS7_decrypt(p7, key, x509, out, flg)){
BIO_free(out);
ossl_raise(ePKCS7Error, NULL);
}
str = ossl_membio2str(out); /* out will be free */
return str;
}
static VALUE
ossl_pkcs7_add_data(VALUE self, VALUE data)
{
PKCS7 *pkcs7;
BIO *out, *in;
char buf[4096];
int len;
GetPKCS7(self, pkcs7);
if(PKCS7_type_is_signed(pkcs7)){
if(!PKCS7_content_new(pkcs7, NID_pkcs7_data))
ossl_raise(ePKCS7Error, NULL);
}
in = ossl_obj2bio(&data);
if(!(out = PKCS7_dataInit(pkcs7, NULL))) goto err;
for(;;){
if((len = BIO_read(in, buf, sizeof(buf))) <= 0)
break;
if(BIO_write(out, buf, len) != len)
goto err;
}
if(!PKCS7_dataFinal(pkcs7, out)) goto err;
ossl_pkcs7_set_data(self, Qnil);
err:
BIO_free_all(out);
BIO_free(in);
if(ERR_peek_error()){
ossl_raise(ePKCS7Error, NULL);
}
return data;
}
static VALUE
ossl_pkcs7_to_der(VALUE self)
{
PKCS7 *pkcs7;
VALUE str;
long len;
unsigned char *p;
GetPKCS7(self, pkcs7);
if((len = i2d_PKCS7(pkcs7, NULL)) <= 0)
ossl_raise(ePKCS7Error, NULL);
str = rb_str_new(0, len);
p = (unsigned char *)RSTRING_PTR(str);
if(i2d_PKCS7(pkcs7, &p) <= 0)
ossl_raise(ePKCS7Error, NULL);
ossl_str_adjust(str, p);
return str;
}
static VALUE
ossl_pkcs7_to_pem(VALUE self)
{
PKCS7 *pkcs7;
BIO *out;
VALUE str;
GetPKCS7(self, pkcs7);
if (!(out = BIO_new(BIO_s_mem()))) {
ossl_raise(ePKCS7Error, NULL);
}
if (!PEM_write_bio_PKCS7(out, pkcs7)) {
BIO_free(out);
ossl_raise(ePKCS7Error, NULL);
}
str = ossl_membio2str(out);
return str;
}
/*
* SIGNER INFO
*/
static VALUE
ossl_pkcs7si_alloc(VALUE klass)
{
PKCS7_SIGNER_INFO *p7si;
VALUE obj;
obj = NewPKCS7si(klass);
if (!(p7si = PKCS7_SIGNER_INFO_new())) {
ossl_raise(ePKCS7Error, NULL);
}
SetPKCS7si(obj, p7si);
return obj;
}
static VALUE
ossl_pkcs7si_initialize(VALUE self, VALUE cert, VALUE key, VALUE digest)
{
PKCS7_SIGNER_INFO *p7si;
EVP_PKEY *pkey;
X509 *x509;
const EVP_MD *md;
pkey = GetPrivPKeyPtr(key); /* NO NEED TO DUP */
x509 = GetX509CertPtr(cert); /* NO NEED TO DUP */
md = ossl_evp_get_digestbyname(digest);
GetPKCS7si(self, p7si);
if (!(PKCS7_SIGNER_INFO_set(p7si, x509, pkey, (EVP_MD*)md))) {
ossl_raise(ePKCS7Error, NULL);
}
return self;
}
static VALUE
ossl_pkcs7si_get_issuer(VALUE self)
{
PKCS7_SIGNER_INFO *p7si;
GetPKCS7si(self, p7si);
return ossl_x509name_new(p7si->issuer_and_serial->issuer);
}
static VALUE
ossl_pkcs7si_get_serial(VALUE self)
{
PKCS7_SIGNER_INFO *p7si;
GetPKCS7si(self, p7si);
return asn1integer_to_num(p7si->issuer_and_serial->serial);
}
static VALUE
ossl_pkcs7si_get_signed_time(VALUE self)
{
PKCS7_SIGNER_INFO *p7si;
ASN1_TYPE *asn1obj;
GetPKCS7si(self, p7si);
if (!(asn1obj = PKCS7_get_signed_attribute(p7si, NID_pkcs9_signingTime))) {
ossl_raise(ePKCS7Error, NULL);
}
if (asn1obj->type == V_ASN1_UTCTIME) {
return asn1time_to_time(asn1obj->value.utctime);
}
/*
* OR
* ossl_raise(ePKCS7Error, "...");
* ?
*/
return Qnil;
}
/*
* RECIPIENT INFO
*/
static VALUE
ossl_pkcs7ri_alloc(VALUE klass)
{
PKCS7_RECIP_INFO *p7ri;
VALUE obj;
obj = NewPKCS7ri(klass);
if (!(p7ri = PKCS7_RECIP_INFO_new())) {
ossl_raise(ePKCS7Error, NULL);
}
SetPKCS7ri(obj, p7ri);
return obj;
}
static VALUE
ossl_pkcs7ri_initialize(VALUE self, VALUE cert)
{
PKCS7_RECIP_INFO *p7ri;
X509 *x509;
x509 = GetX509CertPtr(cert); /* NO NEED TO DUP */
GetPKCS7ri(self, p7ri);
if (!PKCS7_RECIP_INFO_set(p7ri, x509)) {
ossl_raise(ePKCS7Error, NULL);
}
return self;
}
static VALUE
ossl_pkcs7ri_get_issuer(VALUE self)
{
PKCS7_RECIP_INFO *p7ri;
GetPKCS7ri(self, p7ri);
return ossl_x509name_new(p7ri->issuer_and_serial->issuer);
}
static VALUE
ossl_pkcs7ri_get_serial(VALUE self)
{
PKCS7_RECIP_INFO *p7ri;
GetPKCS7ri(self, p7ri);
return asn1integer_to_num(p7ri->issuer_and_serial->serial);
}
static VALUE
ossl_pkcs7ri_get_enc_key(VALUE self)
{
PKCS7_RECIP_INFO *p7ri;
GetPKCS7ri(self, p7ri);
return asn1str_to_str(p7ri->enc_key);
}
/*
* INIT
*/
void
Init_ossl_pkcs7(void)
{
#undef rb_intern
#if 0
mOSSL = rb_define_module("OpenSSL");
eOSSLError = rb_define_class_under(mOSSL, "OpenSSLError", rb_eStandardError);
#endif
cPKCS7 = rb_define_class_under(mOSSL, "PKCS7", rb_cObject);
ePKCS7Error = rb_define_class_under(cPKCS7, "PKCS7Error", eOSSLError);
rb_define_singleton_method(cPKCS7, "read_smime", ossl_pkcs7_s_read_smime, 1);
rb_define_singleton_method(cPKCS7, "write_smime", ossl_pkcs7_s_write_smime, -1);
rb_define_singleton_method(cPKCS7, "sign", ossl_pkcs7_s_sign, -1);
rb_define_singleton_method(cPKCS7, "encrypt", ossl_pkcs7_s_encrypt, -1);
rb_attr(cPKCS7, rb_intern("data"), 1, 0, Qfalse);
rb_attr(cPKCS7, rb_intern("error_string"), 1, 1, Qfalse);
rb_define_alloc_func(cPKCS7, ossl_pkcs7_alloc);
rb_define_method(cPKCS7, "initialize_copy", ossl_pkcs7_copy, 1);
rb_define_method(cPKCS7, "initialize", ossl_pkcs7_initialize, -1);
rb_define_method(cPKCS7, "type=", ossl_pkcs7_set_type, 1);
rb_define_method(cPKCS7, "type", ossl_pkcs7_get_type, 0);
rb_define_method(cPKCS7, "detached=", ossl_pkcs7_set_detached, 1);
rb_define_method(cPKCS7, "detached", ossl_pkcs7_get_detached, 0);
rb_define_method(cPKCS7, "detached?", ossl_pkcs7_detached_p, 0);
rb_define_method(cPKCS7, "cipher=", ossl_pkcs7_set_cipher, 1);
rb_define_method(cPKCS7, "add_signer", ossl_pkcs7_add_signer, 1);
rb_define_method(cPKCS7, "signers", ossl_pkcs7_get_signer, 0);
rb_define_method(cPKCS7, "add_recipient", ossl_pkcs7_add_recipient, 1);
rb_define_method(cPKCS7, "recipients", ossl_pkcs7_get_recipient, 0);
rb_define_method(cPKCS7, "add_certificate", ossl_pkcs7_add_certificate, 1);
rb_define_method(cPKCS7, "certificates=", ossl_pkcs7_set_certificates, 1);
rb_define_method(cPKCS7, "certificates", ossl_pkcs7_get_certificates, 0);
rb_define_method(cPKCS7, "add_crl", ossl_pkcs7_add_crl, 1);
rb_define_method(cPKCS7, "crls=", ossl_pkcs7_set_crls, 1);
rb_define_method(cPKCS7, "crls", ossl_pkcs7_get_crls, 0);
rb_define_method(cPKCS7, "add_data", ossl_pkcs7_add_data, 1);
rb_define_alias(cPKCS7, "data=", "add_data");
rb_define_method(cPKCS7, "verify", ossl_pkcs7_verify, -1);
rb_define_method(cPKCS7, "decrypt", ossl_pkcs7_decrypt, -1);
rb_define_method(cPKCS7, "to_pem", ossl_pkcs7_to_pem, 0);
rb_define_alias(cPKCS7, "to_s", "to_pem");
rb_define_method(cPKCS7, "to_der", ossl_pkcs7_to_der, 0);
cPKCS7Signer = rb_define_class_under(cPKCS7, "SignerInfo", rb_cObject);
rb_define_const(cPKCS7, "Signer", cPKCS7Signer);
rb_define_alloc_func(cPKCS7Signer, ossl_pkcs7si_alloc);
rb_define_method(cPKCS7Signer, "initialize", ossl_pkcs7si_initialize,3);
rb_define_method(cPKCS7Signer, "issuer", ossl_pkcs7si_get_issuer, 0);
rb_define_method(cPKCS7Signer, "serial", ossl_pkcs7si_get_serial,0);
rb_define_method(cPKCS7Signer,"signed_time",ossl_pkcs7si_get_signed_time,0);
cPKCS7Recipient = rb_define_class_under(cPKCS7,"RecipientInfo",rb_cObject);
rb_define_alloc_func(cPKCS7Recipient, ossl_pkcs7ri_alloc);
rb_define_method(cPKCS7Recipient, "initialize", ossl_pkcs7ri_initialize,1);
rb_define_method(cPKCS7Recipient, "issuer", ossl_pkcs7ri_get_issuer,0);
rb_define_method(cPKCS7Recipient, "serial", ossl_pkcs7ri_get_serial,0);
rb_define_method(cPKCS7Recipient, "enc_key", ossl_pkcs7ri_get_enc_key,0);
#define DefPKCS7Const(x) rb_define_const(cPKCS7, #x, INT2NUM(PKCS7_##x))
DefPKCS7Const(TEXT);
DefPKCS7Const(NOCERTS);
DefPKCS7Const(NOSIGS);
DefPKCS7Const(NOCHAIN);
DefPKCS7Const(NOINTERN);
DefPKCS7Const(NOVERIFY);
DefPKCS7Const(DETACHED);
DefPKCS7Const(BINARY);
DefPKCS7Const(NOATTR);
DefPKCS7Const(NOSMIMECAP);
}
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