/*-

* Copyright (c) 2014 Juan Romero Pardines.

* 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 AUTHOR ``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 AUTHOR 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.

*/

#include <stdio.h>

#include <stdbool.h>

#include <stdlib.h>

#include <string.h>

#include <errno.h>

#include <sys/stat.h>

#include <fcntl.h>

#include "xbps_api_impl.h"

static int

pkgdb038(struct xbps_handle *xhp, const char *opkgdb_plist)

{

xbps_dictionary_t pkgdb, opkgdb;

xbps_object_iterator_t iter;

xbps_object_t obj;

int rv = 0;

/*

* The pkgdb-0.38.plist format contains all pkg metadata objects,

* except its files list. To avoid a broken conversion, the old

* pkg metadata plists are kept, and the converted ones are written

* to another path.

*

* - <metadir>/pkgdb-0.38.plist

* - <metadir>/.<pkgname>-files.plist

*/

opkgdb = xbps_plist_dictionary_from_file(xhp, opkgdb_plist);

if (opkgdb == NULL)

return EINVAL;

pkgdb = xbps_dictionary_create();

assert(pkgdb);

/*

* Iterate over the old pkgdb dictionary and copy all pkg objects

* into the new pkgdb dictionary.

*/

iter = xbps_dictionary_iterator(opkgdb);

assert(iter);

while ((obj = xbps_object_iterator_next(iter))) {

xbps_dictionary_t pkgd, pkgfilesd, pkgmetad;

xbps_object_iterator_t iter2;

xbps_object_t obj2;

const char *pkgname, *repo;

char *pkgmeta;

pkgname = xbps_dictionary_keysym_cstring_nocopy(obj);

pkgd = xbps_dictionary_get_keysym(opkgdb, obj);

/*

* Rename "repository-origin" obj to "repository" to match

* the repository index obj.

*/

if (xbps_dictionary_get_cstring_nocopy(pkgd, "repository-origin", &repo)) {

xbps_dictionary_set_cstring(pkgd, "repository", repo);

xbps_dictionary_remove(pkgd, "repository-origin");

}

/*

* Copy old pkgdb objects to the new pkgdb.

*/

if (!xbps_dictionary_set(pkgdb, pkgname, pkgd)) {

xbps_dbg_printf("%s: failed to copy %s pkgd "

"for pkgdb conversion\n", __func__, pkgname);

rv = EINVAL;

goto out;

}

/*

* Copy pkg metadata objs to the new pkgdb.

*/

pkgmeta = xbps_xasprintf("%s/.%s.plist", xhp->metadir, pkgname);

pkgmetad = xbps_plist_dictionary_from_file(xhp, pkgmeta);

if (pkgmetad == NULL) {

rv = EINVAL;

xbps_dbg_printf("%s: cannot open %s: %s\n",

__func__, pkgmeta, strerror(errno));

goto out;

}

pkgfilesd = xbps_dictionary_create();

assert(pkgfilesd);

iter2 = xbps_dictionary_iterator(pkgmetad);

assert(iter2);

while ((obj2 = xbps_object_iterator_next(iter2))) {

xbps_object_t curobj;

const char *key, *excluded[] = {

"conf_files", "dirs", "files", "links"

};

bool skip = false;

key = xbps_dictionary_keysym_cstring_nocopy(obj2);

curobj = xbps_dictionary_get_keysym(pkgmetad, obj2);

for (uint8_t i = 0; i < __arraycount(excluded); i++) {

if (strcmp(excluded[i], key) == 0) {

skip = true;

break;

}

}

if (skip) {

assert(xbps_object_type(curobj) == XBPS_TYPE_ARRAY);

if (xbps_array_count(curobj))

xbps_dictionary_set(pkgfilesd, key, curobj);

continue;

}

if (!xbps_dictionary_set(pkgd, key, curobj)) {

xbps_dbg_printf("%s: failed to copy %s "

"pkgd for pkgdb conversion\n", pkgname, key);

xbps_object_iterator_release(iter2);

xbps_object_release(pkgmetad);

free(pkgmeta);

rv = EINVAL;

goto out;

}

}

xbps_object_iterator_release(iter2);

/*

* Externalize <pkgname>-files.plist if pkg contains any file.

*/

if (xbps_dictionary_count(pkgfilesd)) {

char *pkgfiles, *sha256;

pkgfiles = xbps_xasprintf("%s/.%s-files.plist", xhp->metadir, pkgname);

if (!xbps_dictionary_externalize_to_file(pkgfilesd, pkgfiles)) {

xbps_dbg_printf("%s: failed to "

"externalize %s: %s\n", __func__, pkgfiles, strerror(errno));

rv = EINVAL;

goto out;

}

xbps_dbg_printf("%s: externalized %s successfully\n", __func__, pkgfiles);

/*

* Update SHA56 hash for the pkg files plist.

*/

sha256 = xbps_file_hash(pkgfiles);

assert(sha256);

xbps_dictionary_set_cstring(pkgd, "metafile-sha256", sha256);

free(sha256);

free(pkgfiles);

} else {

/* unnecessary obj if pkg contains no files */

xbps_dictionary_remove(pkgd, "metafile-sha256");

}

xbps_object_release(pkgfilesd);

xbps_object_release(pkgmetad);

free(pkgmeta);

}

/*

* Externalize the new pkgdb plist.

*/

if (!xbps_dictionary_externalize_to_file(pkgdb, xhp->pkgdb_plist)) {

xbps_dbg_printf("%s: failed to externalize %s: "

"%s!\n", __func__, xhp->pkgdb_plist, strerror(errno));

rv = EINVAL;

goto out;

}

out:

if (iter)

xbps_object_iterator_release(iter);

if (pkgdb)

xbps_object_release(pkgdb);

if (opkgdb)

xbps_object_release(opkgdb);

return rv;

}

int HIDDEN

xbps_pkgdb_conversion(struct xbps_handle *xhp)

{

char *opkgdb = NULL;

int rv = 0;

/*

* If pkgdb-0.38.plist exists there's nothing to do.

*/

if (xhp && xhp->pkgdb_plist && (access(xhp->pkgdb_plist, R_OK) == 0))

return 0;

/*

* If pkgdb-0.21.plist does not exist there's nothing to do.

*/

opkgdb = xbps_xasprintf("%s/pkgdb-0.21.plist", xhp->metadir);

if (access(opkgdb, R_OK) == 0) {

/*

* Make the conversion and exit on success. It's just

* better to make the upgrade in two steps.

*/

xbps_set_cb_state(xhp, XBPS_STATE_PKGDB, 0, NULL, NULL);

if ((rv = pkgdb038(xhp, opkgdb)) == 0) {

xbps_set_cb_state(xhp, XBPS_STATE_PKGDB_DONE, 0, NULL, NULL);

xbps_end(xhp);

exit(EXIT_SUCCESS);

}

}

free(opkgdb);

return rv;

}