Add support for signed receipt request printout and generation.
[openssl.git] / apps / cms.c
index 6c5c4eb8196fb8d48dd64f09221e8582c3a892d1..7a637786d24fa984673e1d7e95946a3075a58b8f 100644 (file)
@@ -70,6 +70,9 @@
 #define PROG cms_main
 static int save_certs(char *signerfile, STACK_OF(X509) *signers);
 static int smime_cb(int ok, X509_STORE_CTX *ctx);
+static void receipt_request_print(BIO *out, CMS_ContentInfo *cms);
+static CMS_ReceiptRequest *make_receipt_request(STACK *rr_to, int rr_allorfirst,
+                                                               STACK *rr_from);
 
 #define SMIME_OP       0x10
 #define SMIME_IP       0x20
@@ -110,7 +113,10 @@ int MAIN(int argc, char **argv)
        STACK_OF(X509) *encerts = NULL, *other = NULL;
        BIO *in = NULL, *out = NULL, *indata = NULL;
        int badarg = 0;
-       int flags = CMS_DETACHED;
+       int flags = CMS_DETACHED, noout = 0, print = 0;
+       int rr_print = 0, rr_allorfirst = -1;
+       STACK *rr_to = NULL, *rr_from = NULL;
+       CMS_ReceiptRequest *rr = NULL;
        char *to = NULL, *from = NULL, *subject = NULL;
        char *CAfile = NULL, *CApath = NULL;
        char *passargin = NULL, *passin = NULL;
@@ -125,6 +131,8 @@ int MAIN(int argc, char **argv)
        unsigned char *secret_key = NULL, *secret_keyid = NULL;
        size_t secret_keylen = 0, secret_keyidlen = 0;
 
+       ASN1_OBJECT *econtent_type = NULL;
+
        X509_VERIFY_PARAM *vpm = NULL;
 
        args = argv + 1;
@@ -240,6 +248,37 @@ int MAIN(int argc, char **argv)
                                flags |= CMS_NOOLDMIMETYPE;
                else if (!strcmp (*args, "-crlfeol"))
                                flags |= CMS_CRLFEOL;
+               else if (!strcmp (*args, "-noout"))
+                               noout = 1;
+               else if (!strcmp (*args, "-receipt_request_print"))
+                               rr_print = 1;
+               else if (!strcmp (*args, "-receipt_request_all"))
+                               rr_allorfirst = 0;
+               else if (!strcmp (*args, "-receipt_request_first"))
+                               rr_allorfirst = 1;
+               else if (!strcmp(*args,"-receipt_request_from"))
+                       {
+                       if (!args[1])
+                               goto argerr;
+                       args++;
+                       if (!rr_from)
+                               rr_from = sk_new_null();
+                       sk_push(rr_from, *args);
+                       }
+               else if (!strcmp(*args,"-receipt_request_to"))
+                       {
+                       if (!args[1])
+                               goto argerr;
+                       args++;
+                       if (!rr_to)
+                               rr_to = sk_new_null();
+                       sk_push(rr_to, *args);
+                       }
+               else if (!strcmp (*args, "-print"))
+                               {
+                               noout = 1;
+                               print = 1;
+                               }
                else if (!strcmp(*args,"-secretkey"))
                        {
                        long ltmp;
@@ -268,6 +307,18 @@ int MAIN(int argc, char **argv)
                                }
                        secret_keyidlen = (size_t)ltmp;
                        }
+               else if (!strcmp(*args,"-econtent_type"))
+                       {
+                       if (!args[1])
+                               goto argerr;
+                       args++;
+                       econtent_type = OBJ_txt2obj(*args, 0);
+                       if (!econtent_type)
+                               {
+                               BIO_printf(bio_err, "Invalid OID %s\n", *args);
+                               goto argerr;
+                               }
+                       }
                else if (!strcmp(*args,"-rand"))
                        {
                        if (!args[1])
@@ -429,6 +480,17 @@ int MAIN(int argc, char **argv)
                args++;
                }
 
+       if (((rr_allorfirst != -1) || rr_from) && !rr_to)
+               {
+               BIO_puts(bio_err, "No Signed Receipts Recipients\n");
+               goto argerr;
+               }
+
+       if (!(operation & SMIME_SIGNERS)  && (rr_to || rr_from))
+               {
+               BIO_puts(bio_err, "Signed receipts only allowed with -sign\n");
+               goto argerr;
+               }
        if (!(operation & SMIME_SIGNERS) && (skkeys || sksigners))
                {
                BIO_puts(bio_err, "Multiple signers or keys not allowed\n");
@@ -437,12 +499,12 @@ int MAIN(int argc, char **argv)
 
        if (operation & SMIME_SIGNERS)
                {
-               /* Check to see if any final signer needs to be appended */
                if (keyfile && !signerfile)
                        {
                        BIO_puts(bio_err, "Illegal -inkey without -signer\n");
                        goto argerr;
                        }
+               /* Check to see if any final signer needs to be appended */
                if (signerfile)
                        {
                        if (!sksigners)
@@ -465,7 +527,7 @@ int MAIN(int argc, char **argv)
                }
        else if (operation == SMIME_DECRYPT)
                {
-               if (!recipfile && !keyfile)
+               if (!recipfile && !keyfile && !secret_key)
                        {
                        BIO_printf(bio_err, "No recipient certificate or key specified\n");
                        badarg = 1;
@@ -785,25 +847,41 @@ int MAIN(int argc, char **argv)
        else if (operation & SMIME_SIGNERS)
                {
                int i;
-               /* If detached data content we only enable streaming if
+               /* If detached data content we enable streaming if
                 * S/MIME output format.
                 */
                if (operation == SMIME_SIGN)
                        {
+                               
                        if (flags & CMS_DETACHED)
                                {
-                               if (outformat != FORMAT_SMIME)
-                                       flags &= ~CMS_STREAM;
+                               if (outformat == FORMAT_SMIME)
+                                       flags |= CMS_STREAM;
                                }
                        flags |= CMS_PARTIAL;
                        cms = CMS_sign(NULL, NULL, other, in, flags);
                        if (!cms)
                                goto end;
+                       if (econtent_type)
+                               CMS_set1_eContentType(cms, econtent_type);
+
+                       if (rr_to)
+                               {
+                               rr = make_receipt_request(rr_to, rr_allorfirst,
+                                                               rr_from);
+                               if (!rr)
+                                       {
+                                       BIO_puts(bio_err,
+                               "Signed Receipt Request Creation Error\n");
+                                       goto end;
+                                       }
+                               }
                        }
                else
                        flags |= CMS_REUSE_DIGEST;
                for (i = 0; i < sk_num(sksigners); i++)
                        {
+                       CMS_SignerInfo *si;
                        signerfile = sk_value(sksigners, i);
                        keyfile = sk_value(skkeys, i);
                        signer = load_cert(bio_err, signerfile,FORMAT_PEM, NULL,
@@ -814,7 +892,10 @@ int MAIN(int argc, char **argv)
                               "signing key file");
                        if (!key)
                                goto end;
-                       if (!CMS_add1_signer(cms, signer, key, sign_md, flags))
+                       si = CMS_add1_signer(cms, signer, key, sign_md, flags);
+                       if (!si)
+                               goto end;
+                       if (rr && !CMS_add1_ReceiptRequest(si, rr))
                                goto end;
                        X509_free(signer);
                        signer = NULL;
@@ -838,7 +919,30 @@ int MAIN(int argc, char **argv)
        ret = 4;
        if (operation == SMIME_DECRYPT)
                {
-               if (!CMS_decrypt(cms, key, recip, indata, out, flags))
+
+               if (secret_key)
+                       {
+                       if (!CMS_decrypt_set1_key(cms,
+                                               secret_key, secret_keylen,
+                                               secret_keyid, secret_keyidlen))
+                               {
+                               BIO_puts(bio_err,
+                                       "Error decrypting CMS using secret key\n");
+                               goto end;
+                               }
+                       }
+
+               if (key)
+                       {
+                       if (!CMS_decrypt_set1_pkey(cms, key, recip))
+                               {
+                               BIO_puts(bio_err,
+                                       "Error decrypting CMS using private key\n");
+                               goto end;
+                               }
+                       }
+
+               if (!CMS_decrypt(cms, NULL, NULL, indata, out, flags))
                        {
                        BIO_printf(bio_err, "Error decrypting CMS structure\n");
                        goto end;
@@ -893,10 +997,18 @@ int MAIN(int argc, char **argv)
                                }
                        sk_X509_free(signers);
                        }
+               if (rr_print)
+                       receipt_request_print(bio_err, cms);
+                                       
                }
        else
                {
-               if (outformat == FORMAT_SMIME) 
+               if (noout)
+                       {
+                       if (print)
+                               CMS_ContentInfo_print_ctx(out, cms, 0, NULL);
+                       }
+               else if (outformat == FORMAT_SMIME)
                        {
                        if (to)
                                BIO_printf(out, "To: %s\n", to);
@@ -942,6 +1054,14 @@ end:
                OPENSSL_free(secret_key);
        if (secret_keyid)
                OPENSSL_free(secret_keyid);
+       if (econtent_type)
+               ASN1_OBJECT_free(econtent_type);
+       if (rr)
+               CMS_ReceiptRequest_free(rr);
+       if (rr_to)
+               sk_free(rr_to);
+       if (rr_from)
+               sk_free(rr_from);
        X509_STORE_free(store);
        X509_free(cert);
        X509_free(recip);
@@ -988,4 +1108,137 @@ static int smime_cb(int ok, X509_STORE_CTX *ctx)
 
        }
 
+static void gnames_stack_print(BIO *out, STACK_OF(GENERAL_NAMES) *gns)
+       {
+       STACK_OF(GENERAL_NAME) *gens;
+       GENERAL_NAME *gen;
+       int i, j;
+       for (i = 0; i < sk_GENERAL_NAMES_num(gns); i++)
+               {
+               gens = sk_GENERAL_NAMES_value(gns, i);
+               for (j = 0; j < sk_GENERAL_NAME_num(gens); j++)
+                       {
+                       gen = sk_GENERAL_NAME_value(gens, j);
+                       BIO_puts(out, "    ");
+                       GENERAL_NAME_print(out, gen);
+                       BIO_puts(out, "\n");
+                       }
+               }
+       return;
+       }
+
+static void receipt_request_print(BIO *out, CMS_ContentInfo *cms)
+       {
+       STACK_OF(CMS_SignerInfo) *sis;
+       CMS_SignerInfo *si;
+       CMS_ReceiptRequest *rr;
+       int allorfirst;
+       STACK_OF(GENERAL_NAMES) *rto, *rlist;
+       ASN1_STRING *scid;
+       int i, rv;
+       sis = CMS_get0_SignerInfos(cms);
+       for (i = 0; i < sk_CMS_SignerInfo_num(sis); i++)
+               {
+               si = sk_CMS_SignerInfo_value(sis, i);
+               rv = CMS_get1_ReceiptRequest(si, &rr);
+               BIO_printf(bio_err, "Signer %d:\n", i + 1);
+               if (rv == 0)
+                       BIO_puts(bio_err, "  No Receipt Request\n");
+               else if (rv < 0)
+                       {
+                       BIO_puts(bio_err, "  Receipt Request Parse Error\n");
+                       ERR_print_errors(bio_err);
+                       }
+               else
+                       {
+                       char *id;
+                       int idlen;
+                       CMS_ReceiptRequest_get0_values(rr, &scid, &allorfirst,
+                                                       &rlist, &rto);
+                       BIO_puts(out, "  Signed Content ID:\n");
+                       idlen = ASN1_STRING_length(scid);
+                       id = (char *)ASN1_STRING_data(scid);
+                       BIO_dump_indent(out, id, idlen, 4);
+                       BIO_puts(out, "  Receipts From");
+                       if (rlist)
+                               {
+                               BIO_puts(out, " List:\n");
+                               gnames_stack_print(out, rlist);
+                               }
+                       else if (allorfirst == 1)
+                               BIO_puts(out, ": First Tier\n");
+                       else if (allorfirst == 0)
+                               BIO_puts(out, ": All\n");
+                       else
+                               BIO_printf(out, " Unknown (%d)\n", allorfirst);
+                       BIO_puts(out, "  Receipts To:\n");
+                       gnames_stack_print(out, rto);
+                       }
+               if (rr)
+                       CMS_ReceiptRequest_free(rr);
+               }
+       }
+
+static STACK_OF(GENERAL_NAMES) *make_names_stack(STACK *ns)
+       {
+       int i;
+       STACK_OF(GENERAL_NAMES) *ret;
+       GENERAL_NAMES *gens = NULL;
+       GENERAL_NAME *gen = NULL;
+       ret = sk_GENERAL_NAMES_new_null();
+       if (!ret)
+               goto err;
+       for (i = 0; i < sk_num(ns); i++)
+               {
+               char *str = sk_value(ns, i);
+               gen = a2i_GENERAL_NAME(NULL, NULL, NULL, GEN_EMAIL, str, 0);
+               if (!gen)
+                       goto err;
+               gens = GENERAL_NAMES_new();
+               if (!gens)
+                       goto err;
+               if (!sk_GENERAL_NAME_push(gens, gen))
+                       goto err;
+               gen = NULL;
+               if (!sk_GENERAL_NAMES_push(ret, gens))
+                       goto err;
+               gens = NULL;
+               }
+
+       return ret;
+
+       err:
+       if (ret)
+               sk_GENERAL_NAMES_pop_free(ret, GENERAL_NAMES_free);
+       if (gens)
+               GENERAL_NAMES_free(gens);
+       if (gen)
+               GENERAL_NAME_free(gen);
+       return NULL;
+       }
+
+
+static CMS_ReceiptRequest *make_receipt_request(STACK *rr_to, int rr_allorfirst,
+                                                               STACK *rr_from)
+       {
+       STACK_OF(GENERAL_NAMES) *rct_to, *rct_from;
+       CMS_ReceiptRequest *rr;
+       rct_to = make_names_stack(rr_to);
+       if (!rct_to)
+               goto err;
+       if (rr_from)
+               {
+               rct_from = make_names_stack(rr_from);
+               if (!rct_from)
+                       goto err;
+               }
+       else
+               rct_from = NULL;
+       rr = CMS_ReceiptRequest_create0(NULL, -1, rr_allorfirst, rct_from,
+                                               rct_to);
+       return rr;
+       err:
+       return NULL;
+       }
+
 #endif