diff -r 21274e5950af -r a1f4cb076d2f src/server/webdav/operation.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/server/webdav/operation.h	Sat Sep 24 16:26:10 2022 +0200
@@ -0,0 +1,199 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2019 Olaf Wintermann. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in the
+ *      documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef OPERATION_H
+#define OPERATION_H
+
+#include "../public/webdav.h"
+#include <ucx/list.h>
+#include <ucx/map.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef int(*response_close_func)(WebdavOperation *, WebdavResource *);
+
+typedef struct WebdavVFSOperation WebdavVFSOperation;
+
+typedef struct WebdavCopy         WebdavCopy;
+typedef struct CopyResource       CopyResource;
+    
+struct WebdavOperation {
+    WebdavBackend          *dav;
+    Request                *rq;
+    Session                *sn;
+    
+    WebdavProppatchRequest *proppatch;    /* proppatch request or NULL */
+    WebdavPList            *reqprops;     /* requested properties */
+    UcxList                *requests;     /* backend specific request objects */
+    
+    WebdavResponse         *response;
+    
+    response_close_func    response_close;
+    
+    VFS_DIR                parent;        /* current directory */
+    struct stat            *stat;         /* current stat object */
+};
+
+struct WebdavVFSOperation {
+    WebdavBackend          *dav;
+    Request                *rq;
+    Session                *sn;
+    
+    VFSContext             *vfs;
+    
+    char                   *path;
+    struct stat            *stat;
+    int                    stat_errno;
+};
+
+struct WebdavCopy {
+    WebdavResponse response;
+    Session *sn;
+    Request *rq;
+    CopyResource *current;
+    
+    char *src_href;
+    char *src_path;
+    char *dst_href;
+    char *dst_path;
+};
+
+struct CopyResource {
+    WebdavResource resource;
+    UcxMap *properties;
+};
+
+enum WebdavVFSOpType {
+    WEBDAV_VFS_MKDIR = 0,
+    WEBDAV_VFS_DELETE
+};
+
+typedef enum WebdavVFSOpType WebdavVFSOpType;
+
+typedef int(*vfs_op_func)(WebdavVFSRequest *, WSBool *);
+typedef int(*vfs_op_finish_func)(WebdavVFSRequest *, WSBool);
+
+typedef int(*vfs_op_child_func)(
+        VFSContext *,
+        const char *,                     /* href */
+        const char *,                     /* path */
+        VFSDir *,                         /* parent dir */
+        struct stat *,                    /* child stat */
+        void *);                          /* user data */
+
+/*
+ * counts the number of backends
+ */
+size_t webdav_num_backends(WebdavBackend *dav);
+
+WebdavOperation* webdav_create_propfind_operation(
+        Session *sn,
+        Request *rq,
+        WebdavBackend *dav,
+        WebdavPList *reqprops,
+        UcxList *requests,
+        WebdavResponse *response);
+
+int webdav_op_propfind_begin(
+        WebdavOperation *op,
+        const char *href,
+        VFS_DIR parent,
+        struct stat *s);
+
+int webdav_op_propfind_children(
+        WebdavOperation *op,
+        VFSContext *vfs,
+        const char *href,
+        const char *path);
+
+int webdav_op_propfiond_close_resource(
+        WebdavOperation *op,
+        WebdavResource *resource);
+
+int webdav_op_propfind_finish(WebdavOperation *op);
+
+WebdavOperation* webdav_create_proppatch_operation(
+        Session *sn,
+        Request *rq,
+        WebdavBackend *dav,
+        WebdavProppatchRequest *proppatch,
+        WebdavResponse *response);
+
+int webdav_op_proppatch(
+        WebdavOperation *op,
+        const char *href,
+        const char *path);
+
+int webdav_op_proppatch_close_resource(
+        WebdavOperation *op,
+        WebdavResource *resource);
+
+
+WebdavVFSOperation* webdav_vfs_op(
+        Session *sn,
+        Request *rq,
+        WebdavBackend *dav,
+        WSBool precondition);
+
+WebdavVFSOperation webdav_vfs_sub_op(
+        WebdavVFSOperation *op,
+        char *path,
+        struct stat *s);
+
+int webdav_op_iterate_children(
+        VFSContext *vfs,
+        int depth,
+        const char *href,
+        const char *path,
+        vfs_op_child_func func,
+        void *userdata);
+
+int webdav_vfs_stat(WebdavVFSOperation *op);
+
+int webdav_vfs_op_do(WebdavVFSOperation *op, WebdavVFSOpType type);
+
+int webdav_vfs_unlink(WebdavVFSOperation *op);
+
+
+WebdavCopy* webdav_copy_create(
+        Session *sn,
+        Request *rq,
+        VFSContext *vfs,
+        char *from_href,
+        char *from_path,
+        char *to_href,
+        char *to_path);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* OPERATION_H */
+