--- a/src/http/modules/ngx_http_dav_module.c
+++ b/src/http/modules/ngx_http_dav_module.c
@@ -9,7 +9,15 @@
 #include <ngx_http.h>
 
 
-#define NGX_HTTP_DAV_OFF   2
+#define NGX_HTTP_DAV_COPY_BLOCK      65536
+
+#define NGX_HTTP_DAV_OFF             2
+
+
+#define NGX_HTTP_DAV_NO_DEPTH        -3
+#define NGX_HTTP_DAV_INVALID_DEPTH   -2
+#define NGX_HTTP_DAV_INFINITY_DEPTH  -1
+
 
 typedef struct {
     ngx_uint_t  methods;
@@ -18,13 +26,35 @@ typedef struct {
 } ngx_http_dav_loc_conf_t;
 
 
+typedef struct {
+    ngx_str_t   path;
+    size_t      len;
+} ngx_http_dav_copy_ctx_t;
+
+
 static ngx_int_t ngx_http_dav_handler(ngx_http_request_t *r);
+
+static void ngx_http_dav_put_handler(ngx_http_request_t *r);
+
+static ngx_int_t ngx_http_dav_delete_handler(ngx_http_request_t *r);
 static ngx_int_t ngx_http_dav_no_init(void *ctx, void *prev);
 static ngx_int_t ngx_http_dav_noop(ngx_tree_ctx_t *ctx, ngx_str_t *path);
 static ngx_int_t ngx_http_dav_delete_dir(ngx_tree_ctx_t *ctx, ngx_str_t *path);
 static ngx_int_t ngx_http_dav_delete_file(ngx_tree_ctx_t *ctx, ngx_str_t *path);
-static void ngx_http_dav_put_handler(ngx_http_request_t *r);
-static ngx_int_t ngx_http_dav_error(ngx_http_request_t *, ngx_err_t err,
+
+static ngx_int_t ngx_http_dav_mkcol_handler(ngx_http_request_t *r,
+    ngx_http_dav_loc_conf_t *dlcf);
+
+static ngx_int_t ngx_http_dav_copy_move_handler(ngx_http_request_t *r);
+static ngx_int_t ngx_http_dav_copy_dir(ngx_tree_ctx_t *ctx, ngx_str_t *path);
+static ngx_int_t ngx_http_dav_copy_dir_time(ngx_tree_ctx_t *ctx,
+    ngx_str_t *path);
+static ngx_int_t ngx_http_dav_copy_file(ngx_tree_ctx_t *ctx, ngx_str_t *path);
+
+static ngx_int_t ngx_http_dav_delete_path(ngx_http_request_t *r,
+    ngx_str_t *path, ngx_uint_t dir);
+static ngx_int_t ngx_http_dav_depth(ngx_http_request_t *r, ngx_int_t dflt);
+static ngx_int_t ngx_http_dav_error(ngx_log_t *log, ngx_err_t err,
     ngx_int_t not_found, char *failed, u_char *path);
 static ngx_int_t ngx_http_dav_location(ngx_http_request_t *r, u_char *path);
 static char *ngx_http_dav_access(ngx_conf_t *cf, ngx_command_t *cmd,
@@ -40,6 +70,8 @@ static ngx_conf_bitmask_t  ngx_http_dav_
     { ngx_string("put"), NGX_HTTP_PUT },
     { ngx_string("delete"), NGX_HTTP_DELETE },
     { ngx_string("mkcol"), NGX_HTTP_MKCOL },
+    { ngx_string("copy"), NGX_HTTP_COPY },
+    { ngx_string("move"), NGX_HTTP_MOVE },
     { ngx_null_string, 0 }
 };
 
@@ -105,13 +137,7 @@ ngx_module_t  ngx_http_dav_module = {
 static ngx_int_t
 ngx_http_dav_handler(ngx_http_request_t *r)
 {
-    char                     *failed;
-    size_t                    root;
     ngx_int_t                 rc;
-    ngx_str_t                 path;
-    ngx_tree_ctx_t            tree;
-    ngx_file_info_t           fi;
-    ngx_table_elt_t          *depth;
     ngx_http_dav_loc_conf_t  *dlcf;
 
     /* TODO: Win32 */
@@ -149,165 +175,25 @@ ngx_http_dav_handler(ngx_http_request_t 
 
     case NGX_HTTP_DELETE:
 
-        if (r->headers_in.content_length_n > 0) {
-            return NGX_HTTP_UNSUPPORTED_MEDIA_TYPE;
-        }
-
-        rc = ngx_http_discard_body(r);
-
-        if (rc != NGX_OK && rc != NGX_AGAIN) {
-            return rc;
-        }
-
-        ngx_http_map_uri_to_path(r, &path, &root, 0);
-
-        ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
-                       "http delete filename: \"%s\"", path.data);
-
-        if (ngx_file_info(path.data, &fi) != -1) {
-
-            if (ngx_is_dir(&fi)) {
-
-                if (r->uri.data[r->uri.len - 1] != '/') {
-                    return NGX_HTTP_BAD_REQUEST;
-                }
-
-                depth = r->headers_in.depth;
-
-                if (depth
-                    && (depth->value.len != sizeof("infinity") - 1
-                        || ngx_strcmp(depth->value.data, "infinity") != 0))
-                {
-                    return NGX_HTTP_BAD_REQUEST;
-                }
-
-                path.len -= 2;
-
-                tree.init_handler = ngx_http_dav_no_init;
-                tree.file_handler = ngx_http_dav_delete_file;
-                tree.pre_tree_handler = ngx_http_dav_noop;
-                tree.post_tree_handler = ngx_http_dav_delete_dir;
-                tree.spec_handler = ngx_http_dav_delete_file;
-                tree.data = NULL;
-                tree.alloc = 0;
-                tree.log = r->connection->log;
-
-                if (ngx_walk_tree(&tree, &path) == NGX_OK) {
-
-                    if (ngx_delete_dir(path.data) != NGX_FILE_ERROR) {
-                        return NGX_HTTP_NO_CONTENT;
-                    }
-
-                }
-
-                failed = ngx_delete_dir_n;
-
-            } else {
-
-                if (r->uri.data[r->uri.len - 1] == '/') {
-                    return NGX_HTTP_BAD_REQUEST;
-                }
-
-                depth = r->headers_in.depth;
-
-                if (depth
-                    && depth->value.len == 1
-                    && depth->value.data[0] == '1')
-                {
-                    return NGX_HTTP_BAD_REQUEST;
-                }
-
-                if (ngx_delete_file(path.data) != NGX_FILE_ERROR) {
-                    return NGX_HTTP_NO_CONTENT;
-                }
-
-                failed = ngx_delete_file_n;
-            }
-
-        } else {
-            failed = ngx_file_info_n;
-        }
-
-        return ngx_http_dav_error(r, ngx_errno, NGX_HTTP_NOT_FOUND, failed,
-                                  path.data);
+        return ngx_http_dav_delete_handler(r);
 
     case NGX_HTTP_MKCOL:
 
-        if (r->uri.data[r->uri.len - 1] != '/') {
-            return NGX_DECLINED;
-        }
-
-        if (r->headers_in.content_length_n > 0) {
-            return NGX_HTTP_UNSUPPORTED_MEDIA_TYPE;
-        }
+        return ngx_http_dav_mkcol_handler(r, dlcf);
 
-        rc = ngx_http_discard_body(r);
-
-        if (rc != NGX_OK && rc != NGX_AGAIN) {
-            return rc;
-        }
-
-        ngx_http_map_uri_to_path(r, &path, &root, 0);
+    case NGX_HTTP_COPY:
 
-        ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
-                       "http mkcol path: \"%s\"", path.data);
+        return ngx_http_dav_copy_move_handler(r);
 
-        if (ngx_create_dir(path.data, ngx_dir_access(dlcf->access))
-            != NGX_FILE_ERROR)
-        {
-            if (ngx_http_dav_location(r, path.data) != NGX_OK) {
-                return NGX_HTTP_INTERNAL_SERVER_ERROR;
-            }
+    case NGX_HTTP_MOVE:
 
-            return NGX_HTTP_CREATED;
-        }
-
-        return ngx_http_dav_error(r, ngx_errno, NGX_HTTP_CONFLICT,
-                                  ngx_create_dir_n, path.data);
+        return ngx_http_dav_copy_move_handler(r);
     }
 
     return NGX_DECLINED;
 }
 
 
-static ngx_int_t
-ngx_http_dav_no_init(void *ctx, void *prev)
-{
-    return NGX_OK;
-}
-
-
-static ngx_int_t
-ngx_http_dav_noop(ngx_tree_ctx_t *ctx, ngx_str_t *path)
-{
-    return NGX_OK;
-}
-
-
-static ngx_int_t
-ngx_http_dav_delete_dir(ngx_tree_ctx_t *ctx, ngx_str_t *path)
-{
-    ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0,
-                   "http delete dir: \"%s\"", path->data);
-
-    ngx_delete_dir(path->data);
-
-    return NGX_OK;
-}
-
-
-static ngx_int_t
-ngx_http_dav_delete_file(ngx_tree_ctx_t *ctx, ngx_str_t *path)
-{
-    ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0,
-                   "http delete file: \"%s\"", path->data);
-
-    ngx_delete_file(path->data);
-
-    return NGX_OK;
-}
-
-
 static void
 ngx_http_dav_put_handler(ngx_http_request_t *r)
 {
@@ -317,7 +203,7 @@ ngx_http_dav_put_handler(ngx_http_reques
     time_t                    date;
     ngx_err_t                 err;
     ngx_str_t                *temp, path;
-    ngx_uint_t                status;
+    ngx_uint_t                status, not_found;
     ngx_file_info_t           fi;
     ngx_http_dav_loc_conf_t  *dlcf;
 
@@ -357,6 +243,7 @@ ngx_http_dav_put_handler(ngx_http_reques
         == NGX_FILE_ERROR)
     {
         err = ngx_errno;
+        not_found = NGX_HTTP_INTERNAL_SERVER_ERROR;
         failed = ngx_change_file_access_n;
         name = temp->data;
 
@@ -375,6 +262,7 @@ ngx_http_dav_put_handler(ngx_http_reques
                 != NGX_OK)
             {
                 err = ngx_errno;
+                not_found = NGX_HTTP_INTERNAL_SERVER_ERROR;
                 failed = ngx_set_file_time_n;
                 name = temp->data;
 
@@ -383,6 +271,7 @@ ngx_http_dav_put_handler(ngx_http_reques
         }
     }
 
+    not_found = NGX_HTTP_CONFLICT;
     failed = ngx_rename_file_n;
     name = path.data;
 
@@ -431,7 +320,8 @@ failed:
     }
 
     ngx_http_finalize_request(r,
-                  ngx_http_dav_error(r, err, NGX_HTTP_CONFLICT, failed, name));
+                              ngx_http_dav_error(r->connection->log, err,
+                                                 not_found, failed, name));
 
     return;
 
@@ -455,7 +345,700 @@ ok:
 
 
 static ngx_int_t
-ngx_http_dav_error(ngx_http_request_t *r, ngx_err_t err, ngx_int_t not_found,
+ngx_http_dav_delete_handler(ngx_http_request_t *r)
+{
+    size_t           root;
+    ngx_int_t        rc, depth;
+    ngx_uint_t       dir;
+    ngx_str_t        path;
+    ngx_file_info_t  fi;
+
+    if (r->headers_in.content_length_n > 0) {
+        return NGX_HTTP_UNSUPPORTED_MEDIA_TYPE;
+    }
+
+    rc = ngx_http_discard_body(r);
+
+    if (rc != NGX_OK && rc != NGX_AGAIN) {
+        return rc;
+    }
+
+    ngx_http_map_uri_to_path(r, &path, &root, 0);
+
+    ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+                   "http delete filename: \"%s\"", path.data);
+
+    if (ngx_file_info(path.data, &fi) == -1) {
+        return ngx_http_dav_error(r->connection->log, ngx_errno,
+                                  NGX_HTTP_NOT_FOUND, ngx_file_info_n,
+                                  path.data);
+    }
+
+    if (ngx_is_dir(&fi)) {
+
+        if (r->uri.data[r->uri.len - 1] != '/') {
+            /* TODO: 301 */
+            return NGX_HTTP_BAD_REQUEST;
+        }
+
+        depth = ngx_http_dav_depth(r, NGX_HTTP_DAV_INFINITY_DEPTH);
+
+        if (depth != NGX_HTTP_DAV_INFINITY_DEPTH) {
+            return NGX_HTTP_BAD_REQUEST;
+        }
+
+        path.len -= 2;  /* omit "/\0" */
+
+        dir = 1;
+
+    } else {
+
+        depth = ngx_http_dav_depth(r, 0);
+
+        if (depth != 0 && depth != NGX_HTTP_DAV_INFINITY_DEPTH) {
+            return NGX_HTTP_BAD_REQUEST;
+        }
+
+        dir = 0;
+    }
+
+    rc = ngx_http_dav_delete_path(r, &path, dir);
+
+    if (rc == NGX_OK) {
+        return NGX_HTTP_NO_CONTENT;
+    }
+
+    return rc;
+}
+
+
+static ngx_int_t
+ngx_http_dav_no_init(void *ctx, void *prev)
+{
+    return NGX_OK;
+}
+
+
+static ngx_int_t
+ngx_http_dav_noop(ngx_tree_ctx_t *ctx, ngx_str_t *path)
+{
+    return NGX_OK;
+}
+
+
+static ngx_int_t
+ngx_http_dav_delete_dir(ngx_tree_ctx_t *ctx, ngx_str_t *path)
+{
+    ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0,
+                   "http delete dir: \"%s\"", path->data);
+
+    if (ngx_delete_dir(path->data) == NGX_FILE_ERROR) {
+
+        /* TODO: add to 207 */
+
+        (void) ngx_http_dav_error(ctx->log, ngx_errno, 0, ngx_delete_dir_n,
+                                  path->data);
+    }
+
+    return NGX_OK;
+}
+
+
+static ngx_int_t
+ngx_http_dav_delete_file(ngx_tree_ctx_t *ctx, ngx_str_t *path)
+{
+    ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0,
+                   "http delete file: \"%s\"", path->data);
+
+    if (ngx_delete_file(path->data) == NGX_FILE_ERROR) {
+
+        /* TODO: add to 207 */
+
+        (void) ngx_http_dav_error(ctx->log, ngx_errno, 0, ngx_delete_file_n,
+                                  path->data);
+    }
+
+    return NGX_OK;
+}
+
+
+static ngx_int_t
+ngx_http_dav_mkcol_handler(ngx_http_request_t *r, ngx_http_dav_loc_conf_t *dlcf)
+{
+    size_t     root;
+    ngx_int_t  rc;
+    ngx_str_t  path;
+
+    if (r->headers_in.content_length_n > 0) {
+        return NGX_HTTP_UNSUPPORTED_MEDIA_TYPE;
+    }
+
+    rc = ngx_http_discard_body(r);
+
+    if (rc != NGX_OK && rc != NGX_AGAIN) {
+        return rc;
+    }
+
+    ngx_http_map_uri_to_path(r, &path, &root, 0);
+
+    ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+                   "http mkcol path: \"%s\"", path.data);
+
+    if (ngx_create_dir(path.data, ngx_dir_access(dlcf->access))
+        != NGX_FILE_ERROR)
+    {
+        if (ngx_http_dav_location(r, path.data) != NGX_OK) {
+            return NGX_HTTP_INTERNAL_SERVER_ERROR;
+        }
+
+        return NGX_HTTP_CREATED;
+    }
+
+    return ngx_http_dav_error(r->connection->log, ngx_errno,
+                              NGX_HTTP_BAD_REQUEST, ngx_create_dir_n,
+                              path.data);
+}
+
+
+static ngx_int_t
+ngx_http_dav_copy_move_handler(ngx_http_request_t *r)
+{
+    u_char                   *p, *host, *last, ch;
+    size_t                    root;
+    ngx_err_t                 err;
+    ngx_int_t                 rc, depth;
+    ngx_uint_t                overwrite, slash;
+    ngx_str_t                 path, uri;
+    ngx_tree_ctx_t            tree;
+    ngx_file_info_t           fi;
+    ngx_table_elt_t          *dest, *over;
+    ngx_http_dav_copy_ctx_t   copy;
+
+    if (r->headers_in.content_length_n > 0) {
+        return NGX_HTTP_UNSUPPORTED_MEDIA_TYPE;
+    }
+
+    dest = r->headers_in.destination;
+
+    if (dest == NULL) {
+        ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+                      "client sent no \"Destination\" header");
+        return NGX_HTTP_BAD_REQUEST;
+    }
+
+    if (dest->value.len < sizeof("http://") - 1 + r->server_name.len + 1) {
+        goto invalid_destination;
+    }
+
+#if (NGX_HTTP_SSL)
+
+    if (r->connection->ssl) {
+        if (ngx_strncmp(dest->value.data, "https://", sizeof("https://") - 1)
+            != 0)
+        {
+            goto invalid_destination;
+        }
+
+        host = dest->value.data + sizeof("https://") - 1;
+
+    } else
+#endif
+    {
+        if (ngx_strncmp(dest->value.data, "http://", sizeof("http://") - 1)
+            != 0)
+        {
+            goto invalid_destination;
+        }
+
+        host = dest->value.data + sizeof("http://") - 1;
+    }
+
+    if (ngx_strncmp(host, r->server_name.data, r->server_name.len) != 0) {
+        ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+                      "Destination URI \"%V\" is handled by "
+                      "different repository than the source URI",
+                      &dest->value);
+
+        return NGX_HTTP_BAD_REQUEST;
+    }
+
+    last = dest->value.data + dest->value.len;
+
+    for (p = host + r->server_name.len; p < last; p++) {
+        if (*p == '/') {
+            goto destination_done;
+        }
+    }
+
+invalid_destination:
+
+    ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+                  "client sent invalid \"Destination\" header: \"%V\"",
+                  &dest->value);
+
+    return NGX_HTTP_BAD_REQUEST;
+
+destination_done:
+
+    depth = ngx_http_dav_depth(r, 0);
+
+    if (depth != 0 && depth != NGX_HTTP_DAV_INFINITY_DEPTH) {
+        return NGX_HTTP_BAD_REQUEST;
+    }
+ 
+    over = r->headers_in.overwrite;
+
+    if (over) {
+        if (over->value.len == 1) {
+            ch = over->value.data[0];
+
+            if (ch == 'T' || ch == 't') {
+                overwrite = 1;
+                goto overwrite_done;
+            }
+
+            if (ch == 'F' || ch == 'f') {
+                overwrite = 0;
+                goto overwrite_done;
+            }
+
+        }
+
+        ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+                      "client sent invalid \"Overwrite\" header: \"%V\"",
+                      &over->value);
+
+        return NGX_HTTP_BAD_REQUEST;
+    }
+
+    overwrite = 1;
+
+overwrite_done:
+
+    rc = ngx_http_discard_body(r);
+
+    if (rc != NGX_OK && rc != NGX_AGAIN) {
+        return rc;
+    }
+
+    ngx_http_map_uri_to_path(r, &path, &root, 0);
+
+    ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+                   "http copy from: \"%s\"", path.data);
+
+    uri = r->uri;
+
+    r->uri.len = last - p;
+    r->uri.data = p;
+
+    ngx_http_map_uri_to_path(r, &copy.path, &root, 0);
+
+    r->uri = uri;
+
+    copy.path.len--;  /* omit "\0" */
+
+    if (copy.path.data[copy.path.len - 1] == '/') {
+        slash = 1;
+        copy.path.len--;
+        copy.path.data[copy.path.len] = '\0';
+
+    } else {
+        slash = 0;
+    }
+
+    ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+                   "http copy to: \"%s\"", copy.path.data);
+
+    if (ngx_file_info(copy.path.data, &fi) == -1) {
+        err = ngx_errno;
+
+        if (err != NGX_ENOENT) {
+            return ngx_http_dav_error(r->connection->log, err,
+                                      NGX_HTTP_NOT_FOUND, ngx_file_info_n,
+                                      copy.path.data);
+        }
+
+        /* destination does not exist */
+
+    } else {
+
+        /* destination exists */
+
+        if (ngx_is_dir(&fi) && !slash) {
+            return NGX_HTTP_CONFLICT;
+        }
+
+        if (!overwrite) {
+            return NGX_HTTP_PRECONDITION_FAILED;
+        }
+
+        ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+                       "http delete: \"%s\"", copy.path.data);
+
+        rc = ngx_http_dav_delete_path(r, &copy.path, ngx_is_dir(&fi));
+
+        if (rc != NGX_OK) {
+            return rc;
+        }
+    }
+
+    if (ngx_file_info(path.data, &fi) == -1) {
+        return ngx_http_dav_error(r->connection->log, ngx_errno,
+                                  NGX_HTTP_NOT_FOUND, ngx_file_info_n,
+                                  path.data);
+    }
+
+
+    if (ngx_is_dir(&fi)) {
+
+        if (r->uri.data[r->uri.len - 1] != '/') {
+            /* TODO: 301 */
+            return NGX_HTTP_BAD_REQUEST;
+        }
+
+        path.len -= 2;  /* omit "/\0" */
+
+        if (r->method == NGX_HTTP_MOVE) {
+            if (ngx_rename_file(path.data, copy.path.data) != NGX_FILE_ERROR) {
+                return NGX_HTTP_CREATED;
+            }
+        }
+
+        if (ngx_create_dir(copy.path.data, ngx_file_access(&fi))
+            == NGX_FILE_ERROR)
+        {
+            return ngx_http_dav_error(r->connection->log, ngx_errno,
+                                      NGX_HTTP_NOT_FOUND,
+                                      ngx_create_dir_n, copy.path.data);
+        }
+
+        copy.len = path.len;
+
+        tree.init_handler = ngx_http_dav_no_init;
+        tree.file_handler = ngx_http_dav_copy_file;
+        tree.pre_tree_handler = ngx_http_dav_copy_dir;
+        tree.post_tree_handler = ngx_http_dav_copy_dir_time;
+        tree.spec_handler = ngx_http_dav_noop;
+        tree.data = &copy;
+        tree.alloc = 0;
+        tree.log = r->connection->log;
+
+        if (ngx_walk_tree(&tree, &path) == NGX_OK) {
+
+            if (r->method == NGX_HTTP_MOVE) {
+                rc = ngx_http_dav_delete_path(r, &path, 1);
+
+                if (rc != NGX_OK) {
+                    return rc;
+                }
+            }
+
+            return NGX_HTTP_CREATED;
+        }
+
+    } else {
+
+        if (dest->value.data[dest->value.len - 1] == '/') {
+            return NGX_HTTP_BAD_REQUEST;
+        }
+
+        if (r->method == NGX_HTTP_MOVE) {
+            if (ngx_rename_file(path.data, copy.path.data) != NGX_FILE_ERROR) {
+                return NGX_HTTP_NO_CONTENT;
+            }
+        }
+
+        tree.data = &copy;
+        tree.log = r->connection->log;
+
+        if (ngx_http_dav_copy_file(&tree, &path) != NGX_FILE_ERROR) {
+
+            if (r->method == NGX_HTTP_MOVE) {
+                rc = ngx_http_dav_delete_path(r, &path, 0);
+
+                if (rc != NGX_OK) {
+                    return rc;
+                }
+            }
+
+            return NGX_HTTP_NO_CONTENT;
+        }
+    }
+
+    return NGX_HTTP_INTERNAL_SERVER_ERROR;
+}
+
+
+static ngx_int_t
+ngx_http_dav_copy_dir(ngx_tree_ctx_t *ctx, ngx_str_t *path)
+{
+    u_char                   *p, *dir;
+    size_t                    len;
+    ngx_http_dav_copy_ctx_t  *copy;
+
+    ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0,
+                   "http copy dir: \"%s\"", path->data);
+
+    copy = ctx->data;
+
+    len = copy->path.len + path->len;
+
+    dir = ngx_alloc(len + 1, ctx->log);
+    if (dir == NULL) {
+        return NGX_ABORT;
+    }
+
+    p = ngx_cpymem(dir, copy->path.data, copy->path.len);
+    (void) ngx_cpystrn(p, path->data + copy->len, path->len - copy->len + 1);
+
+    ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0,
+                   "http copy dir to: \"%s\"", dir);
+
+    if (ngx_create_dir(dir, ngx_dir_access(ctx->access)) == NGX_FILE_ERROR) {
+        (void) ngx_http_dav_error(ctx->log, ngx_errno, 0, ngx_create_dir_n,
+                                  dir);
+    }
+
+    ngx_free(dir);
+
+    return NGX_OK;
+}
+
+
+static ngx_int_t
+ngx_http_dav_copy_dir_time(ngx_tree_ctx_t *ctx, ngx_str_t *path)
+{
+    u_char                   *p, *dir;
+    size_t                    len;
+    ngx_http_dav_copy_ctx_t  *copy;
+#if (WIN32)
+    ngx_fd_t                  fd;
+#endif
+
+    ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0,
+                   "http copy dir time: \"%s\"", path->data);
+
+    copy = ctx->data;
+
+    len = copy->path.len + path->len;
+
+    dir = ngx_alloc(len + 1, ctx->log);
+    if (dir == NULL) {
+        return NGX_ABORT;
+    }
+
+    p = ngx_cpymem(dir, copy->path.data, copy->path.len);
+    (void) ngx_cpystrn(p, path->data + copy->len, path->len - copy->len + 1);
+
+    ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0,
+                   "http copy dir time to: \"%s\"", dir);
+
+#if (WIN32)
+
+    fd = ngx_open_file(dir, NGX_FILE_RDWR, NGX_FILE_OPEN, 0);
+
+    if (fd == NGX_INVALID_FILE) {
+        (void) ngx_http_dav_error(ctx->log, ngx_errno, 0, ngx_open_file_n, dir);
+        goto failed;
+    }
+
+    if (ngx_set_file_time(NULL, fd, ctx->mtime) != NGX_OK) {
+        ngx_log_error(NGX_LOG_ALERT, ctx->log, ngx_errno,
+                      ngx_set_file_time_n " \"%s\" failed", dir);
+    }
+
+    if (ngx_close_file(fd) == NGX_FILE_ERROR) {
+        ngx_log_error(NGX_LOG_ALERT, ctx->log, ngx_errno,
+                      ngx_close_file_n " \"%s\" failed", dir);
+    }
+
+failed:
+
+#else
+
+    if (ngx_set_file_time(dir, 0, ctx->mtime) != NGX_OK) {
+        ngx_log_error(NGX_LOG_ALERT, ctx->log, ngx_errno,
+                      ngx_set_file_time_n " \"%s\" failed", dir);
+    }
+
+#endif
+
+    ngx_free(dir);
+
+    return NGX_OK;
+}
+
+
+static ngx_int_t
+ngx_http_dav_copy_file(ngx_tree_ctx_t *ctx, ngx_str_t *path)
+{
+    u_char                   *p, *file;
+    size_t                    len;
+    off_t                     size;
+    ssize_t                   n;
+    ngx_fd_t                  fd, copy_fd;
+    ngx_http_dav_copy_ctx_t  *copy;
+    u_char                    buf[NGX_HTTP_DAV_COPY_BLOCK];
+
+    ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0,
+                   "http copy file: \"%s\"", path->data);
+
+    copy = ctx->data;
+
+    len = copy->path.len + path->len;
+
+    file = ngx_alloc(len + 1, ctx->log);
+    if (file == NULL) {
+        return NGX_ABORT;
+    }
+
+    p = ngx_cpymem(file, copy->path.data, copy->path.len);
+    (void) ngx_cpystrn(p, path->data + copy->len, path->len - copy->len + 1);
+
+    ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->log, 0,
+                   "http copy file to: \"%s\"", file);
+
+    fd = ngx_open_file(path->data, NGX_FILE_RDONLY, NGX_FILE_OPEN, 0);
+
+    if (fd == NGX_INVALID_FILE) {
+        (void) ngx_http_dav_error(ctx->log, ngx_errno, 0, ngx_open_file_n,
+                                  path->data);
+        goto failed;
+    }
+
+    copy_fd = ngx_open_file(file, NGX_FILE_WRONLY, NGX_FILE_CREATE_OR_OPEN,
+                            ctx->access);
+
+    if (copy_fd == NGX_INVALID_FILE) {
+        (void) ngx_http_dav_error(ctx->log, ngx_errno, 0, ngx_open_file_n,
+                                  file);
+        goto copy_failed;
+    }
+
+    for (size = ctx->size; size > 0; size -= n) {
+
+        n = ngx_read_fd(fd, buf, NGX_HTTP_DAV_COPY_BLOCK);
+
+        if (n == NGX_FILE_ERROR) {
+            ngx_log_error(NGX_LOG_ALERT, ctx->log, ngx_errno,
+                          ngx_read_fd_n " \"%s\" failed", path->data);
+            break;
+        }
+
+        if (ngx_write_fd(copy_fd, buf, n) == NGX_FILE_ERROR) {
+            ngx_log_error(NGX_LOG_ALERT, ctx->log, ngx_errno,
+                          ngx_write_fd_n " \"%s\" failed", file);
+        }
+    }
+
+    if (ngx_set_file_time(file, copy_fd, ctx->mtime) != NGX_OK) {
+        ngx_log_error(NGX_LOG_ALERT, ctx->log, ngx_errno,
+                      ngx_set_file_time_n " \"%s\" failed", file);
+    }
+
+    if (ngx_close_file(copy_fd) == NGX_FILE_ERROR) {
+        ngx_log_error(NGX_LOG_ALERT, ctx->log, ngx_errno,
+                      ngx_close_file_n " \"%s\" failed", file);
+    }
+
+copy_failed:
+
+    if (ngx_close_file(fd) == NGX_FILE_ERROR) {
+        ngx_log_error(NGX_LOG_ALERT, ctx->log, ngx_errno,
+                      ngx_close_file_n " \"%s\" failed", path->data);
+    }
+
+failed:
+
+    ngx_free(file);
+
+    return NGX_OK;
+}
+
+
+static ngx_int_t
+ngx_http_dav_delete_path(ngx_http_request_t *r, ngx_str_t *path, ngx_uint_t dir)
+{
+    char            *failed;
+    ngx_tree_ctx_t   tree;
+
+    if (dir) {
+
+        tree.init_handler = ngx_http_dav_no_init;
+        tree.file_handler = ngx_http_dav_delete_file;
+        tree.pre_tree_handler = ngx_http_dav_noop;
+        tree.post_tree_handler = ngx_http_dav_delete_dir;
+        tree.spec_handler = ngx_http_dav_delete_file;
+        tree.data = NULL;
+        tree.alloc = 0;
+        tree.log = r->connection->log;
+
+        /* todo: 207 */
+
+        if (ngx_walk_tree(&tree, path) != NGX_OK) {
+            return NGX_HTTP_INTERNAL_SERVER_ERROR;
+        }
+
+        if (ngx_delete_dir(path->data) != NGX_FILE_ERROR) {
+            return NGX_OK;
+        }
+
+        failed = ngx_delete_dir_n;
+
+    } else {
+
+        if (ngx_delete_file(path->data) != NGX_FILE_ERROR) {
+            return NGX_OK;
+        }
+
+        failed = ngx_delete_file_n;
+    }
+
+    return ngx_http_dav_error(r->connection->log, ngx_errno,
+                              NGX_HTTP_NOT_FOUND, failed, path->data);
+}
+
+
+static ngx_int_t
+ngx_http_dav_depth(ngx_http_request_t *r, ngx_int_t dflt)
+{
+    ngx_table_elt_t  *depth;
+ 
+    depth = r->headers_in.depth;
+
+    if (depth == NULL) {
+        return dflt;
+    }
+
+    if (depth->value.len == 1) {
+
+        if (depth->value.data[0] == '0') {
+            return 0;
+        }
+
+        if (depth->value.data[0] == '1') {
+            return 1;
+        }
+
+    } else {
+
+        if (depth->value.len == sizeof("infinity") - 1
+            && ngx_strcmp(depth->value.data, "infinity") == 0)
+        {
+            return NGX_HTTP_DAV_INFINITY_DEPTH;
+        }
+    }
+
+    ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+                  "client sent invalid \"Depth\" header: \"%V\"",
+                  &depth->value);
+
+    return NGX_HTTP_DAV_INVALID_DEPTH;
+}
+
+
+static ngx_int_t
+ngx_http_dav_error(ngx_log_t *log, ngx_err_t err, ngx_int_t not_found,
     char *failed, u_char *path)
 {
     ngx_int_t   rc;
@@ -482,8 +1065,7 @@ ngx_http_dav_error(ngx_http_request_t *r
         rc = NGX_HTTP_INTERNAL_SERVER_ERROR;
     }
 
-    ngx_log_error(level, r->connection->log, err,
-                  "%s \"%s\" failed", failed, path);
+    ngx_log_error(level, log, err, "%s \"%s\" failed", failed, path);
 
     return rc;
 }