xbps/lib/repository_sync_index.c
Juan RP 823fe6d67c Don't export xbps_get_remote_repo_string() to the API, it's only
used internally in the library.

--HG--
extra : convert_revision : xtraeme%40gmail.com-20100123051334-8ndutg9gqfljff3p
2010-01-23 06:13:34 +01:00

206 lines
4.9 KiB
C

/*-
* Copyright (c) 2009 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/utsname.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <xbps_api.h>
#include "fetch.h"
/**
* @file lib/repository_sync_index.c
* @brief Repository package index synchronization routines
* @defgroup reposync Repository package index synchronization functions
*
* Functions to manipulate repository package index plist file
* synchronizations.
*/
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://www.foo.org/blah/xbps/binpkg-repo
*
* becomes:
*
* http___www_foo_org_blah_xbps_binpkg_repo
*
*/
p = xbps_xasprintf("%s://%s%s", url->scheme, url->host, url->doc);
fetchFreeURL(url);
if (p == NULL)
return NULL;
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
xbps_repository_sync_pkg_index(const char *uri)
{
struct url *url = NULL;
struct utsname un;
struct stat st;
const char *fetch_outputdir;
char *rpidx, *lrepodir, *uri_fixedp;
char *metadir, *tmp_metafile, *lrepofile;
int rv = 0;
bool only_sync = false;
rpidx = lrepodir = uri_fixedp = NULL;
metadir = tmp_metafile = lrepofile = NULL;
if (uname(&un) == -1)
return -1;
if ((url = fetchParseURL(uri)) == NULL)
return -1;
uri_fixedp = xbps_get_remote_repo_string(uri);
if (uri_fixedp == NULL) {
fetchFreeURL(url);
return -1;
}
/*
* Create metadir if necessary.
*/
metadir = xbps_xasprintf("%s/%s", xbps_get_rootdir(),
XBPS_META_PATH);
if (metadir == NULL) {
rv = -1;
goto out;
}
if ((rv = xbps_mkpath(metadir, 0755)) == -1)
goto out;
/*
* Remote repository pkg-index.plist full URL.
*/
rpidx = xbps_xasprintf("%s/%s/%s", uri, un.machine, XBPS_PKGINDEX);
if (rpidx == NULL) {
rv = -1;
goto out;
}
/*
* Save temporary file in XBPS_META_PATH, and rename if it
* was downloaded successfully.
*/
tmp_metafile = xbps_xasprintf("%s/%s", metadir, XBPS_PKGINDEX);
if (tmp_metafile == NULL) {
rv = -1;
goto out;
}
/*
* Full path to local repository directory to store the
* package index file.
*/
lrepodir = xbps_xasprintf("%s/%s/%s",
xbps_get_rootdir(), XBPS_META_PATH, uri_fixedp);
if (lrepodir == NULL) {
rv = -1;
goto out;
}
/*
* If directory exists probably the pkg-index.plist file
* was downloaded previously...
*/
rv = stat(lrepodir, &st);
if (rv == 0 && S_ISDIR(st.st_mode)) {
only_sync = true;
fetch_outputdir = lrepodir;
} else
fetch_outputdir = metadir;
/*
* Download pkg-index.plist file from repository.
*/
if ((rv = xbps_fetch_file(rpidx, fetch_outputdir,
true, NULL)) == -1) {
(void)remove(tmp_metafile);
goto out;
}
if (only_sync)
goto out;
lrepofile = xbps_xasprintf("%s/%s", lrepodir, XBPS_PKGINDEX);
if (lrepofile == NULL) {
rv = -1;
goto out;
}
/*
* Create local repodir to store pkg-index.plist file.
*/
if ((rv = xbps_mkpath(lrepodir, 0755)) == -1)
goto out;
/*
* Rename to destination file now it has been fetched successfully.
*/
if ((rv = rename(tmp_metafile, lrepofile)) == 0)
rv = 1;
out:
if (rpidx)
free(rpidx);
if (lrepodir)
free(lrepodir);
if (metadir)
free(metadir);
if (tmp_metafile)
free(tmp_metafile);
if (lrepofile)
free(lrepofile);
if (url)
fetchFreeURL(url);
if (uri_fixedp)
free(uri_fixedp);
return rv;
}