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-rw-r--r--libcli/http/gensec/basic.c204
1 files changed, 204 insertions, 0 deletions
diff --git a/libcli/http/gensec/basic.c b/libcli/http/gensec/basic.c
new file mode 100644
index 0000000..c7a1bbb
--- /dev/null
+++ b/libcli/http/gensec/basic.c
@@ -0,0 +1,204 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ HTTP library - Basic authentication mechanism gensec module
+
+ Copyright (C) 2014 Samuel Cabrero <samuelcabrero@kernevil.me>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include <tevent.h>
+#include "lib/util/tevent_ntstatus.h"
+#include "auth/auth.h"
+#include "auth/gensec/gensec.h"
+#include "auth/gensec/gensec_internal.h"
+#include "auth/credentials/credentials.h"
+#include "lib/util/base64.h"
+
+_PUBLIC_ NTSTATUS gensec_http_basic_init(TALLOC_CTX *);
+
+struct gensec_http_basic_state {
+ enum {
+ GENSEC_HTTP_BASIC_START,
+ GENSEC_HTTP_BASIC_DONE,
+ GENSEC_HTTP_BASIC_ERROR,
+ } step;
+};
+
+static NTSTATUS gensec_http_basic_client_start(struct gensec_security *gensec)
+{
+ struct gensec_http_basic_state *state;
+
+ state = talloc_zero(gensec, struct gensec_http_basic_state);
+ if (state == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ gensec->private_data = state;
+
+ state->step = GENSEC_HTTP_BASIC_START;
+
+ return NT_STATUS_OK;
+}
+
+struct gensec_http_basic_update_state {
+ NTSTATUS status;
+ DATA_BLOB out;
+};
+
+static NTSTATUS gensec_http_basic_update_internal(struct gensec_security *gensec_ctx,
+ TALLOC_CTX *mem_ctx,
+ const DATA_BLOB in,
+ DATA_BLOB *out);
+
+static struct tevent_req *gensec_http_basic_update_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct gensec_security *gensec_security,
+ const DATA_BLOB in)
+{
+ struct tevent_req *req = NULL;
+ struct gensec_http_basic_update_state *state = NULL;
+ NTSTATUS status;
+
+ req = tevent_req_create(mem_ctx, &state,
+ struct gensec_http_basic_update_state);
+ if (req == NULL) {
+ return NULL;
+ }
+
+ status = gensec_http_basic_update_internal(gensec_security,
+ state, in,
+ &state->out);
+ state->status = status;
+ if (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
+ tevent_req_done(req);
+ return tevent_req_post(req, ev);
+ }
+ if (tevent_req_nterror(req, status)) {
+ return tevent_req_post(req, ev);
+ }
+
+ tevent_req_done(req);
+ return tevent_req_post(req, ev);
+}
+
+static NTSTATUS gensec_http_basic_update_internal(struct gensec_security *gensec_ctx,
+ TALLOC_CTX *mem_ctx,
+ const DATA_BLOB in,
+ DATA_BLOB *out)
+{
+ struct gensec_http_basic_state *state;
+ struct cli_credentials *creds;
+ char *tmp, *b64;
+
+ state = talloc_get_type_abort(gensec_ctx->private_data,
+ struct gensec_http_basic_state);
+ creds = gensec_get_credentials(gensec_ctx);
+
+ switch (gensec_ctx->gensec_role) {
+ case GENSEC_CLIENT:
+ switch (state->step) {
+ case GENSEC_HTTP_BASIC_START:
+ tmp = talloc_asprintf(mem_ctx, "%s\\%s:%s",
+ cli_credentials_get_domain(creds),
+ cli_credentials_get_username(creds),
+ cli_credentials_get_password(creds));
+ if (tmp == NULL) {
+ state->step = GENSEC_HTTP_BASIC_ERROR;
+ return NT_STATUS_NO_MEMORY;
+ }
+ *out = data_blob_string_const(tmp);
+
+ b64 = base64_encode_data_blob(mem_ctx, *out);
+ if (b64 == NULL) {
+ state->step = GENSEC_HTTP_BASIC_ERROR;
+ return NT_STATUS_NO_MEMORY;
+ }
+ TALLOC_FREE(tmp);
+
+ tmp = talloc_asprintf(mem_ctx, "Basic %s", b64);
+ if (tmp == NULL) {
+ state->step = GENSEC_HTTP_BASIC_ERROR;
+ return NT_STATUS_NO_MEMORY;
+ }
+ TALLOC_FREE(b64);
+
+ *out = data_blob_string_const(tmp);
+ state->step = GENSEC_HTTP_BASIC_DONE;
+ return NT_STATUS_OK;
+
+ case GENSEC_HTTP_BASIC_DONE:
+ case GENSEC_HTTP_BASIC_ERROR:
+ default:
+ break;
+ }
+ state->step = GENSEC_HTTP_BASIC_ERROR;
+ return NT_STATUS_INTERNAL_ERROR;
+
+ case GENSEC_SERVER:
+ state->step = GENSEC_HTTP_BASIC_ERROR;
+ return NT_STATUS_NOT_IMPLEMENTED;
+ }
+
+ state->step = GENSEC_HTTP_BASIC_ERROR;
+ return NT_STATUS_INTERNAL_ERROR;
+}
+
+static NTSTATUS gensec_http_basic_update_recv(struct tevent_req *req,
+ TALLOC_CTX *out_mem_ctx,
+ DATA_BLOB *out)
+{
+ struct gensec_http_basic_update_state *state =
+ tevent_req_data(req,
+ struct gensec_http_basic_update_state);
+ NTSTATUS status;
+
+ *out = data_blob_null;
+
+ if (tevent_req_is_nterror(req, &status)) {
+ tevent_req_received(req);
+ return status;
+ }
+
+ *out = state->out;
+ talloc_steal(out_mem_ctx, state->out.data);
+ status = state->status;
+ tevent_req_received(req);
+ return status;
+}
+
+static const struct gensec_security_ops gensec_http_basic_security_ops = {
+ .name = "http_basic",
+ .auth_type = 0,
+ .client_start = gensec_http_basic_client_start,
+ .update_send = gensec_http_basic_update_send,
+ .update_recv = gensec_http_basic_update_recv,
+ .enabled = true,
+ .priority = GENSEC_EXTERNAL,
+};
+
+_PUBLIC_ NTSTATUS gensec_http_basic_init(TALLOC_CTX *ctx)
+{
+ NTSTATUS status;
+
+ status = gensec_register(ctx, &gensec_http_basic_security_ops);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("Failed to register '%s' gensec backend!\n",
+ gensec_http_basic_security_ops.name));
+ return status;
+ }
+
+ return status;
+}