3939d9aeb5
Prior to this change, xbps-query --cat would abort if the entry file name would contain non ascii characters as it returns ARCHIVE_WARN when failing to use iconv to the users character encoding without having locales initialized. Other places in xbps already ignore ARCHIVE_WARN.
292 lines
6.5 KiB
C
292 lines
6.5 KiB
C
/*-
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* Copyright (c) 2009-2014 Juan Romero Pardines.
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* Copyright (c) 2008, 2009 Joerg Sonnenberger <joerg (at) NetBSD.org>
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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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* From: $NetBSD: pkg_io.c,v 1.9 2009/08/16 21:10:15 joerg Exp $
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*/
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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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/**
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* @file lib/plist_fetch.c
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* @brief Package URL metadata files handling
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* @defgroup plist_fetch Package URL metadata files handling
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*/
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struct fetch_archive {
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struct url *url;
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struct fetchIO *fetch;
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char buffer[32768];
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};
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static int
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fetch_archive_open(struct archive *a UNUSED, void *client_data)
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{
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struct fetch_archive *f = client_data;
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f->fetch = fetchGet(f->url, NULL);
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if (f->fetch == NULL)
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return ENOENT;
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return 0;
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}
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static ssize_t
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fetch_archive_read(struct archive *a UNUSED, void *client_data, const void **buf)
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{
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struct fetch_archive *f = client_data;
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*buf = f->buffer;
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return fetchIO_read(f->fetch, f->buffer, sizeof(f->buffer));
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}
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static int
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fetch_archive_close(struct archive *a UNUSED, void *client_data)
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{
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struct fetch_archive *f = client_data;
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if (f->fetch != NULL)
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fetchIO_close(f->fetch);
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free(f);
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return 0;
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}
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static struct archive *
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open_archive_by_url(struct url *url)
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{
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struct fetch_archive *f;
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struct archive *a;
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f = malloc(sizeof(struct fetch_archive));
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if (f == NULL)
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return NULL;
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f->url = url;
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if ((a = archive_read_new()) == NULL) {
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free(f);
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return NULL;
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}
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archive_read_support_filter_gzip(a);
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archive_read_support_filter_bzip2(a);
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archive_read_support_filter_xz(a);
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archive_read_support_filter_lz4(a);
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archive_read_support_filter_zstd(a);
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archive_read_support_format_tar(a);
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if (archive_read_open(a, f, fetch_archive_open, fetch_archive_read,
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fetch_archive_close) != ARCHIVE_OK) {
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archive_read_free(a);
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return NULL;
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}
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return a;
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}
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static struct archive *
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open_archive(const char *url)
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{
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struct url *u;
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struct archive *a;
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if (!xbps_repository_is_remote(url)) {
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if ((a = archive_read_new()) == NULL)
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return NULL;
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archive_read_support_filter_gzip(a);
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archive_read_support_filter_bzip2(a);
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archive_read_support_filter_xz(a);
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archive_read_support_filter_lz4(a);
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archive_read_support_filter_zstd(a);
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archive_read_support_format_tar(a);
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/* XXX: block size? */
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if (archive_read_open_filename(a, url, 32768) != ARCHIVE_OK) {
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archive_read_free(a);
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return NULL;
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}
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return a;
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}
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if ((u = fetchParseURL(url)) == NULL)
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return NULL;
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a = open_archive_by_url(u);
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fetchFreeURL(u);
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return a;
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}
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char *
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xbps_archive_fetch_file(const char *url, const char *fname)
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{
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struct archive *a;
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struct archive_entry *entry;
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char *buf = NULL;
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assert(url);
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assert(fname);
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if ((a = open_archive(url)) == NULL)
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return NULL;
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while ((archive_read_next_header(a, &entry)) == ARCHIVE_OK) {
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const char *bfile;
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bfile = archive_entry_pathname(entry);
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if (bfile[0] == '.')
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bfile++; /* skip first dot */
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if (strcmp(bfile, fname) == 0) {
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buf = xbps_archive_get_file(a, entry);
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break;
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}
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archive_read_data_skip(a);
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}
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archive_read_free(a);
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return buf;
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}
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bool
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xbps_repo_fetch_remote(struct xbps_repo *repo, const char *url)
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{
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struct archive *a;
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struct archive_entry *entry;
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uint8_t i = 0;
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assert(url);
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assert(repo);
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if ((a = open_archive(url)) == NULL)
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return false;
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while ((archive_read_next_header(a, &entry)) == ARCHIVE_OK) {
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const char *bfile;
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char *buf;
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bfile = archive_entry_pathname(entry);
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if (bfile[0] == '.')
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bfile++; /* skip first dot */
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if (strcmp(bfile, XBPS_REPOIDX_META) == 0) {
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buf = xbps_archive_get_file(a, entry);
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repo->idxmeta = xbps_dictionary_internalize(buf);
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free(buf);
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i++;
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} else if (strcmp(bfile, XBPS_REPOIDX) == 0) {
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buf = xbps_archive_get_file(a, entry);
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repo->idx = xbps_dictionary_internalize(buf);
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free(buf);
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i++;
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} else {
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archive_read_data_skip(a);
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}
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if (i == 2)
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break;
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}
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archive_read_free(a);
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if (xbps_object_type(repo->idxmeta) == XBPS_TYPE_DICTIONARY)
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repo->is_signed = true;
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if (xbps_object_type(repo->idx) == XBPS_TYPE_DICTIONARY)
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return true;
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return false;
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}
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int
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xbps_archive_fetch_file_into_fd(const char *url, const char *fname, int fd)
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{
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struct archive *a;
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struct archive_entry *entry;
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int rv = 0;
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assert(url);
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assert(fname);
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assert(fd != -1);
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if ((a = open_archive(url)) == NULL)
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return EINVAL;
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for (;;) {
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const char *bfile;
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rv = archive_read_next_header(a, &entry);
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if (rv == ARCHIVE_EOF) {
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rv = 0;
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break;
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}
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if (rv == ARCHIVE_FATAL) {
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const char *error = archive_error_string(a);
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if (error != NULL) {
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xbps_error_printf(
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"Reading archive entry from: %s: %s\n",
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url, error);
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} else {
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xbps_error_printf(
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"Reading archive entry from: %s: %s\n",
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url, strerror(archive_errno(a)));
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}
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rv = archive_errno(a);
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break;
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}
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bfile = archive_entry_pathname(entry);
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if (bfile[0] == '.')
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bfile++; /* skip first dot */
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if (strcmp(bfile, fname) == 0) {
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rv = archive_read_data_into_fd(a, fd);
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if (rv != ARCHIVE_OK)
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rv = archive_errno(a);
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break;
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}
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archive_read_data_skip(a);
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}
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archive_read_free(a);
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return rv;
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}
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xbps_dictionary_t
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xbps_archive_fetch_plist(const char *url, const char *plistf)
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{
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xbps_dictionary_t d;
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char *buf;
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if ((buf = xbps_archive_fetch_file(url, plistf)) == NULL)
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return NULL;
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d = xbps_dictionary_internalize(buf);
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free(buf);
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return d;
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}
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