Sat, 18 Mar 2023 12:06:18 +0100
prevent crash in default_propfind_do triggered by bad webdav config
/* * 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 WEBDAV_H #define WEBDAV_H #include "../public/webdav.h" #include <cx/map.h> #include <cx/list.h> #include <cx/buffer.h> #include <cx/string.h> #ifdef __cplusplus extern "C" { #endif typedef struct WebdavType { webdav_init_func init; webdav_create_func create; } WebdavType; typedef struct DefaultWebdavData { WebdavVFSProperties vfsproperties; } DefaultWebdavData; typedef struct WebdavPropfindRequestList WebdavPropfindRequestList; struct WebdavPropfindRequestList { WebdavPropfindRequest *propfind; WebdavPropfindRequestList *next; }; WebdavType* webdav_get_type(cxstring dav_class); void* webdav_init_backend(ServerConfiguration *cfg, pool_handle_t *pool, WebdavType *dav_class, WSConfigNode *config, int *error); int webdav_init(pblock *pb, Session *sn, Request *rq); int webdav_service(pblock *pb, Session *sn, Request *rq); /* * returns a buffer containing the request body * * this function sets an http response code in case of an error * or missing request body */ int rqbody2buffer(Session *sn, Request *rq, CxBuffer *buf); int webdav_options(pblock *pb, Session *sn, Request *rq); int webdav_propfind(pblock *pb, Session *sn, Request *rq); int webdav_propfind_init( WebdavBackend *dav, WebdavPropfindRequest *propfind, const char *path, const char *uri, WebdavPropfindRequestList **out_req); int webdav_propfind_do( WebdavBackend *dav, WebdavPropfindRequest *propfind, WebdavResponse *response, VFSContext *vfs, char *path, char *uri); int webdav_proppatch(pblock *pb, Session *sn, Request *rq); int webdav_mkcol(pblock *pb, Session *sn, Request *rq); int webdav_post(pblock *pb, Session *sn, Request *rq); int webdav_delete(pblock *pb, Session *sn, Request *rq); int webdav_put(pblock *pb, Session *sn, Request *rq); int webdav_copy(pblock *pb, Session *sn, Request *rq); int webdav_move(pblock *pb, Session *sn, Request *rq); int webdav_lock(pblock *pb, Session *sn, Request *rq); int webdav_unlock(pblock *pb, Session *sn, Request *rq); int webdav_report(pblock *pb, Session *sn, Request *rq); int webdav_acl(pblock *pb, Session *sn, Request *rq); int webdav_search (pblock *pb, Session *sn, Request *rq); int default_propfind_init( WebdavPropfindRequest *rq, const char *path, const char *href, WebdavPList **outplist); int default_propfind_do( WebdavPropfindRequest *request, WebdavResponse *response, VFS_DIR parent, WebdavResource *resource, struct stat *s); int default_propfind_finish(WebdavPropfindRequest *rq); int default_proppatch_do( WebdavProppatchRequest *request, WebdavResource *response, VFSFile *file, WebdavPList **setInOut, WebdavPList **removeInOut); int default_proppatch_finish( WebdavProppatchRequest *request, WebdavResource *response, VFSFile *file, WSBool commit); CxHashKey webdav_property_key(const char *ns, const char *name); #ifdef __cplusplus } #endif #endif /* WEBDAV_H */