r4949: First version of a fetchfile composite function which connects to a server and

loads a file. Needs a smb url parsing wrapper.

Volker
(This used to be commit fa435bf7c878d4a5beb6afb2ed6e2990abc11e82)

3 files changed, 208 insertions, 1 deletions

diff --git a/source4/libcli/composite/composite.h b/source4/libcli/composite/composite.h
index 35d6d94878..cb8cee779c 100644
--- a/source4/libcli/composite/composite.h
+++ b/source4/libcli/composite/composite.h
@@ -65,6 +65,25 @@ struct smb_composite_loadfile {
 	} out;
 };
 
+struct smb_composite_fetchfile {
+	struct {
+		const char *dest_host;
+		int port;
+		const char *called_name;
+		const char *calling_name;
+		const char *service;
+		const char *service_type;
+		const char *user;
+		const char *domain;
+		const char *password;
+		const char *filename;
+	} in;
+	struct {
+		uint8_t *data;
+		uint32_t size;
+	} out;
+};
+
 /*
   a composite open/write(s)/close request that saves a whole file from
   memory. Used as a demo of the composite system.
diff --git a/source4/libcli/composite/fetchfile.c b/source4/libcli/composite/fetchfile.c
new file mode 100644
index 0000000000..f18657c452
--- /dev/null
+++ b/source4/libcli/composite/fetchfile.c
@@ -0,0 +1,187 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   Copyright (C) Volker Lendecke 2005
+   
+   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 2 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, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+/*
+  a composite API for loading a whole file into memory
+*/
+
+#include "includes.h"
+#include "libcli/raw/libcliraw.h"
+#include "libcli/composite/composite.h"
+#include "librpc/gen_ndr/ndr_security.h"
+
+enum fetchfile_stage {FETCHFILE_CONNECT,
+		      FETCHFILE_READ};
+
+struct fetchfile_state {
+	enum fetchfile_stage stage;
+	struct smb_composite_fetchfile *io;
+	struct smbcli_composite *req;
+	struct smb_composite_connect *connect;
+	struct smb_composite_loadfile *loadfile;
+};
+
+static void fetchfile_composite_handler(struct smbcli_composite *req);
+
+static NTSTATUS fetchfile_connect(struct smbcli_composite *c,
+				  struct smb_composite_fetchfile *io)
+{
+	NTSTATUS status;
+	struct fetchfile_state *state;
+	state = talloc_get_type(c->private, struct fetchfile_state);
+
+	status = smb_composite_connect_recv(state->req, c);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	printf("connect done\n");
+
+	state->loadfile = talloc(state, struct smb_composite_loadfile);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	state->loadfile->in.fname = io->in.filename;
+
+	state->req = smb_composite_loadfile_send(state->connect->out.tree,
+						 state->loadfile);
+	NT_STATUS_HAVE_NO_MEMORY(state->req);
+
+	state->req->async.private = c;
+	state->req->async.fn = fetchfile_composite_handler;
+
+	state->stage = FETCHFILE_READ;
+	c->event_ctx = talloc_reference(c, state->req->event_ctx);
+
+	printf("load started\n");
+
+	return NT_STATUS_OK;
+}
+
+static NTSTATUS fetchfile_read(struct smbcli_composite *c,
+			       struct smb_composite_fetchfile *io)
+{
+	NTSTATUS status;
+	struct fetchfile_state *state;
+	state = talloc_get_type(c->private, struct fetchfile_state);
+
+	printf("read event\n");
+
+	status = smb_composite_loadfile_recv(state->req, NULL);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	printf("read done\n");
+
+	io->out.data = state->loadfile->out.data;
+	io->out.size = state->loadfile->out.size;
+
+	c->state = SMBCLI_REQUEST_DONE;
+	if (c->async.fn)
+		c->async.fn(c);
+
+	return NT_STATUS_OK;
+}
+
+static void fetchfile_state_handler(struct smbcli_composite *c)
+{
+	struct fetchfile_state *state;
+	NTSTATUS status;
+	
+	state = talloc_get_type(c->private, struct fetchfile_state);
+
+	/* when this handler is called, the stage indicates what
+	   call has just finished */
+	switch (state->stage) {
+	case FETCHFILE_CONNECT:
+		status = fetchfile_connect(c, state->io);
+		break;
+	case FETCHFILE_READ:
+		status = fetchfile_read(c, state->io);
+		break;
+	}
+
+	if (!NT_STATUS_IS_OK(status)) {
+		c->status = status;
+		c->state = SMBCLI_REQUEST_ERROR;
+		if (c->async.fn) {
+			c->async.fn(c);
+		}
+	}
+}
+
+static void fetchfile_composite_handler(struct smbcli_composite *req)
+{
+	struct smbcli_composite *c = talloc_get_type(req->async.private, 
+						     struct smbcli_composite);
+	return fetchfile_state_handler(c);
+}
+
+struct smbcli_composite *smb_composite_fetchfile_send(struct smb_composite_fetchfile *io,
+						      struct event_context *event_ctx)
+{
+	struct smbcli_composite *c;
+	struct fetchfile_state *state;
+
+	c = talloc_zero(NULL, struct smbcli_composite);
+	if (c == NULL) goto failed;
+
+	state = talloc(c, struct fetchfile_state);
+	if (state == NULL) goto failed;
+
+	state->connect = talloc(state, struct smb_composite_connect);
+	if (state->connect == NULL) goto failed;
+
+	state->io = io;
+
+	state->connect->in.dest_host    = io->in.dest_host;
+	state->connect->in.port         = io->in.port;
+	state->connect->in.called_name  = io->in.called_name;
+	state->connect->in.calling_name = io->in.calling_name;
+	state->connect->in.service      = io->in.service;
+	state->connect->in.service_type = io->in.service_type;
+	state->connect->in.user         = io->in.user;
+	state->connect->in.domain       = io->in.domain;
+	state->connect->in.password     = io->in.password;
+
+	state->req = smb_composite_connect_send(state->connect, event_ctx);
+	if (state->req == NULL) goto failed;
+
+	state->req->async.private = c;
+	state->req->async.fn = fetchfile_composite_handler;
+
+	c->state = SMBCLI_REQUEST_SEND;
+	state->stage = FETCHFILE_CONNECT;
+	c->event_ctx = talloc_reference(c, state->req->event_ctx);
+	c->private = state;
+
+	return c;
+ failed:
+	talloc_free(c);
+	return NULL;
+}
+
+NTSTATUS smb_composite_fetchfile_recv(struct smbcli_composite *c,
+				      TALLOC_CTX *mem_ctx)
+{
+	return smb_composite_wait(c);
+}
+
+NTSTATUS smb_composite_fetchfile(struct smb_composite_fetchfile *io,
+				 TALLOC_CTX *mem_ctx)
+{
+	struct smbcli_composite *c = smb_composite_fetchfile_send(io, NULL);
+	return smb_composite_fetchfile_recv(c, mem_ctx);
+}
diff --git a/source4/libcli/config.mk b/source4/libcli/config.mk
index a43644f197..806ef775dc 100644
--- a/source4/libcli/config.mk
+++ b/source4/libcli/config.mk
@@ -18,7 +18,8 @@ ADD_OBJ_FILES = \
 	libcli/composite/loadfile.o \
 	libcli/composite/savefile.o \
 	libcli/composite/connect.o \
-	libcli/composite/sesssetup.o
+	libcli/composite/sesssetup.o \
+	libcli/composite/fetchfile.o
 
 [SUBSYSTEM::LIBCLI_NBT]
 ADD_OBJ_FILES = \