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repo_sync.c
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/*-
* Copyright (c) 2009-2014 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 <sys/stat.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "xbps_api_impl.h"
#include "fetch.h"
char HIDDEN *
xbps_get_remote_repo_string(const char *uri)
{
struct url *url;
size_t i;
char *p;
if ((url = fetchParseURL(uri)) == NULL)
return NULL;
/*
* Replace '.' ':' and '/' characters with underscores, so that
* provided URL:
*
* http://nocturno.local:8080/repo/x86_64
*
* becomes:
*
* http___nocturno_local_8080_repo_x86_64
*/
if (url->port != 0)
p = xbps_xasprintf("%s://%s:%u%s", url->scheme,
url->host, url->port, url->doc);
else
p = xbps_xasprintf("%s://%s%s", url->scheme,
url->host, url->doc);
fetchFreeURL(url);
for (i = 0; i < strlen(p); i++) {
if (p[i] == '.' || p[i] == '/' || p[i] == ':')
p[i] = '_';
}
return p;
}
/*
* Returns -1 on error, 0 if transfer was not necessary (local/remote
* size and/or mtime match) and 1 if downloaded successfully.
*/
int HIDDEN
xbps_repo_sync(struct xbps_handle *xhp, const char *uri)
{
mode_t prev_umask;
const char *arch, *fetchstr = NULL;
char *repodata, *lrepodir, *uri_fixedp;
int rv = 0;
assert(uri != NULL);
/* ignore non remote repositories */
if (!xbps_repository_is_remote(uri))
return 0;
uri_fixedp = xbps_get_remote_repo_string(uri);
if (uri_fixedp == NULL)
return -1;
if (xhp->target_arch)
arch = xhp->target_arch;
else
arch = xhp->native_arch;
/*
* Full path to repository directory to store the plist
* index file.
*/
lrepodir = xbps_xasprintf("%s/%s", xhp->metadir, uri_fixedp);
free(uri_fixedp);
/*
* Create repodir in metadir.
*/
prev_umask = umask(022);
if ((rv = xbps_mkpath(lrepodir, 0755)) == -1) {
if (errno != EEXIST) {
xbps_set_cb_state(xhp, XBPS_STATE_REPOSYNC_FAIL,
errno, NULL, "[reposync] failed "
"to create repodir `%s': %s", lrepodir,
strerror(errno));
umask(prev_umask);
free(lrepodir);
return rv;
}
}
if (chdir(lrepodir) == -1) {
xbps_set_cb_state(xhp, XBPS_STATE_REPOSYNC_FAIL, errno, NULL,
"[reposync] failed to change dir to repodir `%s': %s",
lrepodir, strerror(errno));
umask(prev_umask);
free(lrepodir);
return -1;
}
free(lrepodir);
/*
* Remote repository plist index full URL.
*/
repodata = xbps_xasprintf("%s/%s-repodata", uri, arch);
/* reposync start cb */
xbps_set_cb_state(xhp, XBPS_STATE_REPOSYNC, 0, repodata, NULL);
/*
* Download plist index file from repository.
*/
if ((rv = xbps_fetch_file(xhp, repodata, NULL)) == -1) {
/* reposync error cb */
fetchstr = xbps_fetch_error_string();
xbps_set_cb_state(xhp, XBPS_STATE_REPOSYNC_FAIL,
fetchLastErrCode != 0 ? fetchLastErrCode : errno, NULL,
"[reposync] failed to fetch file `%s': %s",
repodata, fetchstr ? fetchstr : strerror(errno));
} else if (rv == 1)
rv = 0;
umask(prev_umask);
free(repodata);
return rv;
}