245 lines
6.2 KiB
C
245 lines
6.2 KiB
C
/*-
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* Copyright (c) 2009-2011 Juan Romero Pardines.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/stat.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include "xbps_api_impl.h"
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#include "fetch.h"
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/**
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* @file lib/repository_sync_index.c
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* @brief Repository package index synchronization routines
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* @defgroup reposync Repository package index synchronization functions
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*
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* Functions to manipulate repository package index plist file
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* synchronizations.
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*/
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char HIDDEN *
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xbps_get_remote_repo_string(const char *uri)
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{
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struct url *url;
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size_t i;
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char *p;
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if ((url = fetchParseURL(uri)) == NULL)
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return NULL;
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/*
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* Replace '.' ':' and '/' characters with underscores, so that
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* provided URL:
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*
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* http://nocturno.local:8080/repo/x86_64
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*
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* becomes:
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*
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* http___nocturno_local_8080_repo_x86_64
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*
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*/
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if (url->port != 0)
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p = xbps_xasprintf("%s://%s:%u%s", url->scheme,
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url->host, url->port, url->doc);
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else
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p = xbps_xasprintf("%s://%s%s", url->scheme,
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url->host, url->doc);
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fetchFreeURL(url);
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if (p == NULL)
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return NULL;
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for (i = 0; i < strlen(p); i++) {
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if (p[i] == '.' || p[i] == '/' || p[i] == ':')
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p[i] = '_';
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}
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return p;
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}
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/*
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* Returns -1 on error, 0 if transfer was not necessary (local/remote
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* size and/or mtime match) and 1 if downloaded successfully.
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*/
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int
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xbps_repository_sync_pkg_index(const char *uri)
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{
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prop_dictionary_t tmpd;
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struct xbps_handle *xhp;
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struct url *url = NULL;
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struct stat st;
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const char *fetch_outputdir;
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char *rpidx, *lrepodir, *uri_fixedp;
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char *metadir, *tmp_metafile, *lrepofile;
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int rv = 0;
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bool only_sync = false;
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assert(uri != NULL);
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tmp_metafile = rpidx = lrepodir = lrepofile = NULL;
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xhp = xbps_handle_get();
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/* ignore non remote repositories */
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if (!xbps_check_is_repository_uri_remote(uri))
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return 0;
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if ((url = fetchParseURL(uri)) == NULL)
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return -1;
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uri_fixedp = xbps_get_remote_repo_string(uri);
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if (uri_fixedp == NULL) {
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fetchFreeURL(url);
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return -1;
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}
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/*
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* Create metadir if necessary.
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*/
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metadir = xbps_xasprintf("%s/%s",
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prop_string_cstring_nocopy(xhp->rootdir), XBPS_META_PATH);
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if (metadir == NULL) {
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rv = -1;
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goto out;
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}
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if ((rv = xbps_mkpath(metadir, 0755)) == -1) {
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xbps_dbg_printf("[rsyncidx] failed to create metadir `%s': "
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"%s\n", metadir, strerror(errno));
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goto out;
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}
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/*
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* Remote repository pkg-index.plist full URL.
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*/
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rpidx = xbps_xasprintf("%s/%s", uri, XBPS_PKGINDEX);
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if (rpidx == NULL) {
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rv = -1;
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goto out;
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}
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/*
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* Save temporary file in XBPS_META_PATH, and rename if it
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* was downloaded successfully.
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*/
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tmp_metafile = xbps_xasprintf("%s/%s", metadir, XBPS_PKGINDEX);
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if (tmp_metafile == NULL) {
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rv = -1;
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goto out;
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}
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/*
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* Full path to repository directory to store the pkg-index.plist
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* file.
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*/
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lrepodir = xbps_xasprintf("%s/%s/%s",
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prop_string_cstring_nocopy(xhp->rootdir), XBPS_META_PATH, uri_fixedp);
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if (lrepodir == NULL) {
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rv = -1;
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goto out;
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}
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/*
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* If directory exists probably the pkg-index.plist file
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* was downloaded previously...
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*/
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rv = stat(lrepodir, &st);
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if (rv == 0 && S_ISDIR(st.st_mode)) {
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only_sync = true;
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fetch_outputdir = lrepodir;
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} else
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fetch_outputdir = metadir;
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if (xhp->xbps_transaction_cb) {
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xhp->xtcd->state = XBPS_TRANS_STATE_REPOSYNC;
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xhp->xtcd->repourl = uri;
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xhp->xbps_transaction_cb(xhp->xtcd);
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}
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/*
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* Download pkg-index.plist file from repository.
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*/
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if (xbps_fetch_file(rpidx, fetch_outputdir, true, NULL) == -1) {
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if (xhp->xbps_transaction_err_cb) {
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xhp->xtcd->state = XBPS_TRANS_STATE_REPOSYNC;
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xhp->xtcd->repourl = uri;
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xhp->xtcd->err = fetchLastErrCode;
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xhp->xbps_transaction_err_cb(xhp->xtcd);
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}
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rv = -1;
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goto out;
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}
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if (only_sync)
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goto out;
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/*
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* Make sure that downloaded plist file can be internalized, i.e
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* some HTTP servers don't return proper errors and sometimes
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* you get an HTML ASCII file :-)
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*/
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tmpd = prop_dictionary_internalize_from_zfile(tmp_metafile);
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if (tmpd == NULL) {
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xbps_error_printf("[rsyncidx] downloaded pkg-index.plist "
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"file cannot be read! removing...\n");
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(void)unlink(tmp_metafile);
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rv = -1;
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goto out;
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}
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prop_object_release(tmpd);
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lrepofile = xbps_xasprintf("%s/%s", lrepodir, XBPS_PKGINDEX);
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if (lrepofile == NULL) {
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rv = -1;
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goto out;
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}
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/*
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* Create local repodir to store pkg-index.plist file.
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*/
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if ((rv = xbps_mkpath(lrepodir, 0755)) == -1) {
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xbps_dbg_printf("[rsyncidx] failed to create repodir "
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"`%s': %s\n", lrepodir, strerror(errno));
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goto out;
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}
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/*
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* Rename to destination file now it has been fetched successfully.
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*/
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if ((rv = rename(tmp_metafile, lrepofile)) == -1)
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xbps_dbg_printf("[rsyncidx] failed to rename `%s' to "
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"`%s': %s\n", tmp_metafile, lrepofile, strerror(errno));
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else
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rv = 1; /* success */
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out:
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if (rpidx)
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free(rpidx);
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if (lrepodir)
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free(lrepodir);
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if (metadir)
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free(metadir);
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if (tmp_metafile)
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free(tmp_metafile);
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if (lrepofile)
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free(lrepofile);
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if (url)
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fetchFreeURL(url);
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if (uri_fixedp)
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free(uri_fixedp);
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return rv;
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}
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