/* Called by: zxid_map_val_ss, zxid_mk_usr_a7n_to_sp, zxid_xacml_az_cd1_do, zxid_xacml_az_do */
struct zx_sa_Subject_s* zxid_mk_subj(zxid_conf* cf, struct zx_elem_s* father, zxid_entity* sp_meta, zxid_nid* nid)
{
struct zx_sa_Subject_s* subj = zx_NEW_sa_Subject(cf->ctx, father);
#if 0
// , struct zx_str* affil, char* fmt
nid = zx_NEW_sa_NameID(cf->ctx,0);
nid->SPNameQualifier = affil;
nid->NameQualifier = zxid_my_ent_id(cf);
nid->Format = zx_dup_str(cf->ctx, fmt); /* *** implement persistent */
if (!strcmp(fmt, SAML2_TRANSIENT_NID_FMT)) {
zx_add_content(cf->ctx, nid, zxid_mk_id(cf, "T", ZXID_ID_BITS));
} else {
/* *** see also zxid_get_user_nameid() */
}
#endif
if (cf->nameid_enc) {
if (sp_meta)
subj->EncryptedID = zxid_mk_enc_id(cf, &subj->gg, nid, sp_meta);
else {
ERR("NameID encryption configred, but no metadata supplied. Defaulting to unencrypted NameID %d", 0);
ZX_ADD_KID(subj, NameID, nid);
}
} else {
ZX_ADD_KID(subj, NameID, nid);
}
/* SAML spec is more lax than the schema: saml-core-2.0-os.pdf ll.653-657 says <SubjectConfirmation> [Zero or More] */
return subj;
}
/* Called by: zxid_add_fed_tok2epr, zxid_imreq, zxid_mk_saml_resp */
struct zx_sa_EncryptedAssertion_s* zxid_mk_enc_a7n(zxid_conf* cf, struct zx_elem_s* father, zxid_a7n* a7n, zxid_entity* meta)
{
struct zx_xenc_EncryptedData_s* ed;
struct zx_str* ss;
struct zx_sa_EncryptedAssertion_s* enc_a7n;
if (!cf || !a7n) {
ERR("NULL arguments (programmer error) %p", cf);
return 0;
}
if (!meta || !meta->enc_cert) {
ERR("Missing destination metadata or the metadata does not have encryption certificate. %p", meta);
return 0;
}
ss = zx_easy_enc_elem_opt(cf, &a7n->gg);
if (!ss) {
ERR("Failed to XML serialize assertion %p", a7n);
return 0;
}
enc_a7n = zx_NEW_sa_EncryptedAssertion(cf->ctx, father);
if (cf->enckey_opt & 0x20) {
/* Nested EncryptedKey approach (Shibboleth early 2010) */
ed = zxenc_pubkey_enc(cf, ss, 0, meta->enc_cert, "40", 0);
} else {
/* RetrievalMethod approach */
ed = zxenc_pubkey_enc(cf, ss, &enc_a7n->EncryptedKey, meta->enc_cert, "39", meta);
}
if (!ed) {
ERR("Failed to encrypt assertion %p (this could be due to problems with encryption certificate of the destination or destination's metadata; you may be able to work around this problem by manipulating POST_A7N_ENC or DI_A7N_ENC config option, but consider the security implication)", a7n);
return 0;
}
ZX_ADD_KID(enc_a7n, EncryptedData, ed);
zx_str_free(cf->ctx, ss);
return enc_a7n;
}
/* Called by: a7n_test, zxid_sp_mni_redir, zxid_sp_mni_soap */
struct zx_sp_ManageNameIDRequest_s* zxid_mk_mni(zxid_conf* cf, zxid_nid* nid, struct zx_str* new_nym, zxid_entity* idp_meta)
{
struct zx_str* ss;
struct zx_xenc_EncryptedKey_s* ek;
struct zx_elem_s* newid;
struct zx_sp_ManageNameIDRequest_s* r = zx_NEW_sp_ManageNameIDRequest(cf->ctx,0);
r->Issuer = zxid_my_issuer(cf, &r->gg);
r->ID = zxid_mk_id_attr(cf, &r->gg, zx_ID_ATTR, "R", ZXID_ID_BITS);
r->Version = zx_ref_attr(cf->ctx, &r->gg, zx_Version_ATTR, SAML2_VERSION);
r->IssueInstant = zxid_date_time_attr(cf, &r->gg, zx_IssueInstant_ATTR, time(0));
if (cf->nameid_enc && idp_meta) {
r->EncryptedID = zxid_mk_enc_id(cf, &r->gg, nid, idp_meta);
if (new_nym && new_nym->len) {
newid = zx_new_str_elem(cf->ctx, 0, zx_sp_NewID_ELEM, new_nym);
ss = zx_easy_enc_elem_opt(cf, newid);
r->NewEncryptedID = zx_NEW_sp_NewEncryptedID(cf->ctx, &r->gg);
if (cf->enckey_opt & 0x20) {
/* Nested EncryptedKey approach (Shibboleth early 2010) */
ZX_ADD_KID(r->NewEncryptedID, EncryptedData, zxenc_pubkey_enc(cf, ss, 0, idp_meta->enc_cert, "43",0));
} else {
/* RetrievalMethod approach */
ZX_ADD_KID(r->NewEncryptedID, EncryptedData, zxenc_pubkey_enc(cf, ss, &ek, idp_meta->enc_cert, "39", idp_meta));
ZX_ADD_KID(r->NewEncryptedID, EncryptedKey, ek);
zx_reverse_elem_lists(&r->NewEncryptedID->gg);
}
zx_str_free(cf->ctx, ss);
zx_free_elem(cf->ctx, newid, 0);
} else
r->Terminate = zx_new_str_elem(cf->ctx, &r->gg, zx_sp_Terminate_ELEM, 0);
} else {
r->NameID = nid;
if (new_nym && new_nym->len)
r->NewID = zx_new_str_elem(cf->ctx, &r->gg, zx_sp_NewID_ELEM, new_nym);
else
r->Terminate = zx_new_str_elem(cf->ctx, &r->gg, zx_sp_Terminate_ELEM, 0);
}
return r;
}
/* Called by: zxid_idp_soap_dispatch x2, zxid_sp_soap_dispatch x8 */
int zxid_soap_cgi_resp_body(zxid_conf* cf, zxid_ses* ses, struct zx_e_Body_s* body)
{
struct zx_e_Envelope_s* env = zx_NEW_e_Envelope(cf->ctx,0);
struct zx_str* ss;
struct zx_str* logpath;
env->Body = body;
zx_add_kid(&env->gg, &body->gg);
env->Header = zx_NEW_e_Header(cf->ctx, &env->gg);
if (ses && ses->curflt) {
D("Detected curflt, abandoning previous Body content. %d", 0);
/* *** LEAK: Should free previous body content */
env->Body = (struct zx_e_Body_s*)zx_replace_kid(&env->gg, (struct zx_elem_s*)zx_NEW_e_Body(cf->ctx, 0));
ZX_ADD_KID(env->Body, Fault, ses->curflt);
}
zxid_wsf_decor(cf, ses, env, 1, 0);
ss = zx_easy_enc_elem_opt(cf, &env->gg);
if (cf->log_issue_msg) {
logpath = zxlog_path(cf, ses->issuer, ss, ZXLOG_ISSUE_DIR, ZXLOG_WIR_KIND, 1);
if (logpath) {
if (zxlog_dup_check(cf, logpath, "cgi_resp")) {
ERR("Duplicate wire msg(%.*s) (Simple Sign)", ss->len, ss->s);
#if 0
if (cf->dup_msg_fatal) {
ERR("FATAL (by configuration): Duplicate wire msg(%.*s) (cgi_resp)", ss->len, ss->s);
zxlog_blob(cf, 1, logpath, ss, "cgi_resp dup");
zx_str_free(cf->ctx, logpath);
return 0;
}
#endif
}
zxlog_blob(cf, 1, logpath, ss, "cgi_resp");
zxlogwsp(cf, ses, "K", "CGIRESP", 0, "logpath(%.*s)", logpath->len, logpath->s);
zx_str_free(cf->ctx, logpath);
}
}
if (errmac_debug & ERRMAC_INOUT) INFO("SOAP_RESP(%.*s)", ss->len, ss->s);
fprintf(stdout, "CONTENT-TYPE: text/xml" CRLF "CONTENT-LENGTH: %d" CRLF2 "%.*s", ss->len, ss->len, ss->s);
fflush(stdout);
D("^^^^^^^^^^^^^^ Done (%d chars returned) ^^^^^^^^^^^^^", ss->len);
return ZXID_REDIR_OK;
}
/* Called by: zxid_call_epr, zxid_wsc_prepare_call, zxid_wsc_valid_resp, zxid_wsp_decorate */
struct zx_e_Envelope_s* zxid_add_env_if_needed(zxid_conf* cf, const char* enve)
{
struct zx_e_Envelope_s* env;
struct zx_root_s* r;
struct zx_str* ret;
r = zx_dec_zx_root(cf->ctx, strlen(enve), enve, "add_env");
if (!r) {
ERR("Malformed XML enve(%s)", enve);
return 0;
}
/* N.B. The lists are in reverse order after the parse. */
env = r->Envelope;
if (env) {
/* N.B. Maintain the forward order, Header is 1st element of Envelope->kids. */
if (!env->Header) {
D("ENV EXISTS, no Header %p %p", env, env->Body);
if (!env->Body)
env->Body = zx_NEW_e_Body(cf->ctx, &env->gg);
env->Header = zx_NEW_e_Header(cf->ctx, &env->gg);
} else {
D("ENV EXISTS w/Header %p %p", env, env->Body);
if (!env->Body)
env->Body = zx_NEW_e_Body(cf->ctx, &env->gg);
}
} else if (r->Body) {
D("HERE2 BODY EXISTS %p %p", env, r->Header);
env = zx_NEW_e_Envelope(cf->ctx,0);
ZX_ADD_KID(env, Body, r->Body);
if (r->Header)
ZX_ADD_KID(env, Header, r->Header);
else
env->Header = zx_NEW_e_Header(cf->ctx, &env->gg);
/* N.B. Maintain the Forward order: Header is now first element of Envelope->kids. */
} else { /* Resort to stringwise attempt to add envelope. */
ZX_FREE(cf->ctx, r);
if (!memcmp(enve, "<?xml ", sizeof("<?xml ")-1)) { /* Ignore common, but unnecessary decl. */
for (enve += sizeof("<?xml "); *enve && !(enve[0] == '?' && enve[1] == '>'); ++enve) ;
if (*enve)
enve += 2;
}
/* Must be just payload */
enve = zx_alloc_sprintf(cf->ctx, 0, "%s%s%s", zx_env_body_open, enve, zx_env_body_close);
D("HERE3 ADD ENV(%s)", enve);
r = zx_dec_zx_root(cf->ctx, strlen(enve), enve, "add_env2");
if (!r) {
ERR("Malformed XML enve(%s)", enve);
return 0;
}
env = r->Envelope;
#if 0
ret=zx_easy_enc_elem_opt(cf,&env->gg); INFO("ser(%.*s) enve(%s)",ret->len,ret->s,enve); // ***
/* The lists are in reverse order after the parse. But since this is a text parse,
* wireorder is maintained, thus giving forward order, afterall. */
zx_reverse_elem_lists(&env->gg);
#endif
}
ZX_FREE(cf->ctx, r);
if (env->gg.kids != &env->Header->gg) {
D("ENV Fixing Header-Body ordering %p", env);
env->gg.kids = &env->Header->gg;
env->Header->gg.g.n = &env->Body->gg.g;
env->Body->gg.g.n = 0;
}
ret = zx_easy_enc_elem_opt(cf,&env->gg); INFO("ser(%.*s) enve(%s)",ret->len,ret->s,enve); // ***
if (!env)
ERR("No <e:Envelope> found in input argument. enve(%s)", enve);
/* DO NOT: zx_reverse_elem_lists(&env->gg); * ensure forward order for external use */
return env;
}
/* Called by: zxid_wsc_call, zxid_wsc_prepare_call */
static int zxid_wsc_prep(zxid_conf* cf, zxid_ses* ses, zxid_epr* epr, struct zx_e_Envelope_s* env)
{
zxid_tok* tok;
struct zx_e_Header_s* hdr;
if (!zxid_wsf_decor(cf, ses, env, 0, epr))
return 0;
hdr = env->Header;
/* 6.rq: ReplyTo (optional) */
if (cf->wsc_replyto_hdr && strcmp(cf->wsc_replyto_hdr, "#inhibit")) {
/* Mandatory for a request (says who? - apparenly AXIS2 or WSO2 has a bug of
* requiring this and not understanding to default it to anon).
* liberty-idwsf-soap-binding-2.0-errata-v1.0.pdf
* p.21 ll.591-595 seem to imply that ReplyTo can be omitted if value would be A_ANON. */
hdr->ReplyTo = zx_NEW_a_ReplyTo(cf->ctx, &hdr->gg);
/*hdr->ReplyTo->Address = zxid_mk_addr(cf, zx_strf(cf->ctx, "%s?o=P", cf->burl));*/
if (!strcmp(cf->wsc_replyto_hdr, "#anon")) {
hdr->ReplyTo->Address = zxid_mk_addr(cf, &hdr->ReplyTo->gg, zx_dup_str(cf->ctx, A_ANON));
} else if (!strcmp(cf->wsc_replyto_hdr, "#anon_2005_03")) {
hdr->ReplyTo->Address = zxid_mk_addr(cf, &hdr->ReplyTo->gg, zx_dup_str(cf->ctx, A_ANON_2005_03));
} else {
hdr->ReplyTo->Address = zxid_mk_addr(cf, &hdr->ReplyTo->gg, zx_dup_str(cf->ctx, cf->wsc_replyto_hdr));
}
hdr->ReplyTo->mustUnderstand = zx_ref_attr(cf->ctx, &hdr->ReplyTo->gg, zx_e_mustUnderstand_ATTR, XML_TRUE);
hdr->ReplyTo->actor = zx_ref_attr(cf->ctx, &hdr->ReplyTo->gg, zx_e_actor_ATTR, SOAP_ACTOR_NEXT);
}
#if 0
/* Omission means to use same address as ReplyTo */
hdr->FaultTo = zx_NEW_a_FaultTo(cf->ctx, &hdr->gg);
hdr->FaultTo->Address = zx_mk_addr(cf->ctx, &hdr->FaultTo->gg, zx_strf(cf->ctx, "%s?o=P", cf->burl));
hdr->FaultTo->mustUnderstand = zx_ref_attr(cf->ctx, &hdr->FaultTo->gg, zx_e_mustUnderstand_ATTR, XML_TRUE);
hdr->FaultTo->actor = zx_ref_attr(cf->ctx, &hdr->FaultTo->gg, zx_e_actor_ATTR, SOAP_ACTOR_NEXT);
#endif
if (ses->call_tgttok || ses->call_invoktok && epr && epr->Metadata && epr->Metadata->SecurityContext && epr->Metadata->SecurityContext->Token) {
/* 9.rq: Target Identity */
if (ses->call_tgttok) {
D("TargetIdentity: Explicit specification of ses->call_tgttok %d",0);
tok = ses->call_tgttok;
} else {
D("TargetIdentity: Using token from EPR due to specification of ses->call_invoktok %d",0);
tok = epr->Metadata->SecurityContext->Token;
}
hdr->TargetIdentity = zx_NEW_b_TargetIdentity(cf->ctx, &hdr->gg);
hdr->TargetIdentity->mustUnderstand = zx_ref_attr(cf->ctx, &hdr->TargetIdentity->gg, zx_e_mustUnderstand_ATTR, XML_TRUE);
hdr->TargetIdentity->actor = zx_ref_attr(cf->ctx, &hdr->TargetIdentity->gg, zx_e_actor_ATTR, SOAP_ACTOR_NEXT);
if (tok->EncryptedAssertion) {
ZX_ADD_KID(hdr->TargetIdentity, EncryptedAssertion, tok->EncryptedAssertion);
} else if (tok->Assertion) {
ZX_ADD_KID(hdr->TargetIdentity, Assertion, tok->Assertion);
} else {
ERR("No <sa:EncryptedAssertion> or <sa:Assertion> found in <sec:Token> %p", tok);
}
} /* else this is just implied by the sec mech */
/* 10. UsageDirective */
zxid_attach_sol1_usage_directive(cf, ses, env, TAS3_PLEDGE, cf->wsc_localpdp_obl_pledge);
zx_reverse_elem_lists(&hdr->gg);
return 1;
}
