path: root/src/pacman/package.c

/*
 *  package.c
 *
 *  Copyright (c) 2006-2015 Pacman Development Team <pacman-dev@archlinux.org>
 *  Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>
#include <errno.h>
#include <time.h>

#include <alpm.h>
#include <alpm_list.h>

/* pacman */
#include "package.h"
#include "util.h"
#include "conf.h"

#define CLBUF_SIZE 4096

/** Turn a depends list into a text list.
 * @param deps a list with items of type alpm_depend_t
 */
static void deplist_display(const char *title,
                alpm_list_t *deps, unsigned short cols)
{
        alpm_list_t *i, *text = NULL;
        for(i = deps; i; i = alpm_list_next(i)) {
                alpm_depend_t *dep = i->data;
                text = alpm_list_add(text, alpm_dep_compute_string(dep));
        }
        list_display(title, text, cols);
        FREELIST(text);
}

/** Turn a optdepends list into a text list.
 * @param optdeps a list with items of type alpm_depend_t
 */
static void optdeplist_display(alpm_pkg_t *pkg, unsigned short cols)
{
        alpm_list_t *i, *text = NULL;
        for(i = alpm_pkg_get_optdepends(pkg); i; i = alpm_list_next(i)) {
                alpm_depend_t *optdep = i->data;
                char *depstring = alpm_dep_compute_string(optdep);
                if(alpm_pkg_get_origin(pkg) == ALPM_PKG_FROM_LOCALDB) {
                        if(alpm_db_get_pkg(alpm_get_localdb(config->handle), optdep->name)) {
                                const char *installed = _(" [installed]");
                                depstring = realloc(depstring, strlen(depstring) + strlen(installed) + 1);
                                strcpy(depstring + strlen(depstring), installed);
                        }
                }
                text = alpm_list_add(text, depstring);
        }
        list_display_linebreak(_("Optional Deps  :"), text, cols);
        FREELIST(text);
}

/**
 * Display the details of a package.
 * Extra information entails 'required by' info for sync packages and backup
 * files info for local packages.
 * @param pkg package to display information for
 * @param from the type of package we are dealing with
 * @param extra should we show extra information
 */
void dump_pkg_full(alpm_pkg_t *pkg, int extra)
{
        unsigned short cols;
        time_t bdate, idate;
        alpm_pkgfrom_t from;
        double size;
        char bdatestr[50] = "", idatestr[50] = "";
        const char *label, *reason;
        alpm_list_t *validation = NULL, *requiredby = NULL, *optionalfor = NULL;

        from = alpm_pkg_get_origin(pkg);

        /* set variables here, do all output below */
        bdate = (time_t)alpm_pkg_get_builddate(pkg);
        if(bdate) {
                strftime(bdatestr, 50, "%c", localtime(&bdate));
        }
        idate = (time_t)alpm_pkg_get_installdate(pkg);
        if(idate) {
                strftime(idatestr, 50, "%c", localtime(&idate));
        }

        switch(alpm_pkg_get_reason(pkg)) {
                case ALPM_PKG_REASON_EXPLICIT:
                        reason = _("Explicitly installed");
                        break;
                case ALPM_PKG_REASON_DEPEND:
                        reason = _("Installed as a dependency for another package");
                        break;
                default:
                        reason = _("Unknown");
                        break;
        }

        alpm_pkgvalidation_t v = alpm_pkg_get_validation(pkg);
        if(v) {
                if(v & ALPM_PKG_VALIDATION_NONE) {
                        validation = alpm_list_add(validation, _("None"));
                } else {
                        if(v & ALPM_PKG_VALIDATION_MD5SUM) {
                                validation = alpm_list_add(validation, _("MD5 Sum"));
                        }
                        if(v & ALPM_PKG_VALIDATION_SHA256SUM) {
                                validation = alpm_list_add(validation, _("SHA256 Sum"));
                        }
                        if(v & ALPM_PKG_VALIDATION_SIGNATURE) {
                                validation = alpm_list_add(validation, _("Signature"));
                        }
                }
        } else {
                validation = alpm_list_add(validation, _("Unknown"));
        }

        if(extra || from == ALPM_PKG_FROM_LOCALDB) {
                /* compute this here so we don't get a pause in the middle of output */
                requiredby = alpm_pkg_compute_requiredby(pkg);
                optionalfor = alpm_pkg_compute_optionalfor(pkg);
        }

        cols = getcols();

        /* actual output */
        if(from == ALPM_PKG_FROM_SYNCDB) {
                string_display(_("Repository     :"),
                                alpm_db_get_name(alpm_pkg_get_db(pkg)), cols);
        }
        string_display(_("Name           :"), alpm_pkg_get_name(pkg), cols);
        string_display(_("Version        :"), alpm_pkg_get_version(pkg), cols);
        string_display(_("Description    :"), alpm_pkg_get_desc(pkg), cols);
        string_display(_("Architecture   :"), alpm_pkg_get_arch(pkg), cols);
        string_display(_("URL            :"), alpm_pkg_get_url(pkg), cols);
        list_display(_("Licenses       :"), alpm_pkg_get_licenses(pkg), cols);
        list_display(_("Groups         :"), alpm_pkg_get_groups(pkg), cols);
        deplist_display(_("Provides       :"), alpm_pkg_get_provides(pkg), cols);
        deplist_display(_("Depends On     :"), alpm_pkg_get_depends(pkg), cols);
        optdeplist_display(pkg, cols);

        if(extra || from == ALPM_PKG_FROM_LOCALDB) {
                list_display(_("Required By    :"), requiredby, cols);
                list_display(_("Optional For   :"), optionalfor, cols);
        }
        deplist_display(_("Conflicts With :"), alpm_pkg_get_conflicts(pkg), cols);
        deplist_display(_("Replaces       :"), alpm_pkg_get_replaces(pkg), cols);

        size = humanize_size(alpm_pkg_get_size(pkg), '\0', 2, &label);
        if(from == ALPM_PKG_FROM_SYNCDB) {
                printf("%s%s%s %6.2f %s\n", config->colstr.title, _("Download Size  :"),
                        config->colstr.nocolor, size, label);
        } else if(from == ALPM_PKG_FROM_FILE) {
                printf("%s%s%s %6.2f %s\n", config->colstr.title, _("Compressed Size:"),
                        config->colstr.nocolor, size, label);
        } else {
                // autodetect size for "Installed Size"
                label = "\0";
        }

        size = humanize_size(alpm_pkg_get_isize(pkg), label[0], 2, &label);
        printf("%s%s%s %6.2f %s\n", config->colstr.title, _("Installed Size :"),
                        config->colstr.nocolor, size, label);

        string_display(_("Packager       :"), alpm_pkg_get_packager(pkg), cols);
        string_display(_("Build Date     :"), bdatestr, cols);
        if(from == ALPM_PKG_FROM_LOCALDB) {
                string_display(_("Install Date   :"), idatestr, cols);
                string_display(_("Install Reason :"), reason, cols);
        }
        if(from == ALPM_PKG_FROM_FILE || from == ALPM_PKG_FROM_LOCALDB) {
                string_display(_("Install Script :"),
                                alpm_pkg_has_scriptlet(pkg) ? _("Yes") : _("No"), cols);
        }

        if(from == ALPM_PKG_FROM_SYNCDB && extra) {
                const char *base64_sig = alpm_pkg_get_base64_sig(pkg);
                alpm_list_t *keys = NULL;
                if(base64_sig) {
                        unsigned char *decoded_sigdata = NULL;
                        size_t data_len;
                        alpm_decode_signature(base64_sig, &decoded_sigdata, &data_len);
                        alpm_extract_keyid(config->handle, alpm_pkg_get_name(pkg),
                                        decoded_sigdata, data_len, &keys);
                } else {
                        keys = alpm_list_add(keys, _("None"));
                }

                string_display(_("MD5 Sum        :"), alpm_pkg_get_md5sum(pkg), cols);
                string_display(_("SHA-256 Sum    :"), alpm_pkg_get_sha256sum(pkg), cols);
                list_display(_("Signatures     :"), keys, cols);
        } else {
                list_display(_("Validated By   :"), validation, cols);
        }

        if(from == ALPM_PKG_FROM_FILE) {
                alpm_siglist_t siglist;
                int err = alpm_pkg_check_pgp_signature(pkg, &siglist);
                if(err && alpm_errno(config->handle) == ALPM_ERR_SIG_MISSING) {
                        string_display(_("Signatures     :"), _("None"), cols);
                } else if(err) {
                        string_display(_("Signatures     :"),
                                        alpm_strerror(alpm_errno(config->handle)), cols);
                } else {
                        signature_display(_("Signatures     :"), &siglist, cols);
                }
                alpm_siglist_cleanup(&siglist);
        }

        /* Print additional package info if info flag passed more than once */
        if(from == ALPM_PKG_FROM_LOCALDB && extra) {
                dump_pkg_backups(pkg);
        }

        /* final newline to separate packages */
        printf("\n");

        FREELIST(requiredby);
        FREELIST(optionalfor);
        alpm_list_free(validation);
}

static const char *get_backup_file_status(const char *root,
                const alpm_backup_t *backup)
{
        char path[PATH_MAX];
        const char *ret;

        snprintf(path, PATH_MAX, "%s%s", root, backup->name);

        /* if we find the file, calculate checksums, otherwise it is missing */
        if(access(path, R_OK) == 0) {
                char *md5sum = alpm_compute_md5sum(path);

                if(md5sum == NULL) {
                        pm_printf(ALPM_LOG_ERROR,
                                        _("could not calculate checksums for %s\n"), path);
                        return NULL;
                }

                /* if checksums don't match, file has been modified */
                if(strcmp(md5sum, backup->hash) != 0) {
                        ret = "MODIFIED";
                } else {
                        ret = "UNMODIFIED";
                }
                free(md5sum);
        } else {
                switch(errno) {
                        case EACCES:
                                ret = "UNREADABLE";
                                break;
                        case ENOENT:
                                ret = "MISSING";
                                break;
                        default:
                                ret = "UNKNOWN";
                }
        }
        return ret;
}

/* Display list of backup files and their modification states
 */
void dump_pkg_backups(alpm_pkg_t *pkg)
{
        alpm_list_t *i;
        const char *root = alpm_option_get_root(config->handle);
        printf("%s%s%s", config->colstr.title, _("Backup Files:\n"),
                                 config->colstr.nocolor);
        if(alpm_pkg_get_backup(pkg)) {
                /* package has backup files, so print them */
                for(i = alpm_pkg_get_backup(pkg); i; i = alpm_list_next(i)) {
                        const alpm_backup_t *backup = i->data;
                        const char *value;
                        if(!backup->hash) {
                                continue;
                        }
                        value = get_backup_file_status(root, backup);
                        printf("%s\t%s%s\n", value, root, backup->name);
                }
        } else {
                /* package had no backup files */
                printf(_("(none)\n"));
        }
}

/* List all files contained in a package
 */
void dump_pkg_files(alpm_pkg_t *pkg, int quiet)
{
        const char *pkgname, *root;
        alpm_filelist_t *pkgfiles;
        size_t i;

        pkgname = alpm_pkg_get_name(pkg);
        pkgfiles = alpm_pkg_get_files(pkg);
        root = alpm_option_get_root(config->handle);

        for(i = 0; i < pkgfiles->count; i++) {
                const alpm_file_t *file = pkgfiles->files + i;
                /* Regular: '<pkgname> <root><filepath>\n'
                 * Quiet  : '<root><filepath>\n'
                 */
                if(!quiet) {
                        printf("%s%s%s ", config->colstr.title, pkgname, config->colstr.nocolor);
                }
                printf("%s%s\n", root, file->name);
        }

        fflush(stdout);
}

/* Display the changelog of a package
 */
void dump_pkg_changelog(alpm_pkg_t *pkg)
{
        void *fp = NULL;

        if((fp = alpm_pkg_changelog_open(pkg)) == NULL) {
                pm_printf(ALPM_LOG_ERROR, _("no changelog available for '%s'.\n"),
                                alpm_pkg_get_name(pkg));
                return;
        } else {
                fprintf(stdout, _("Changelog for %s:\n"), alpm_pkg_get_name(pkg));
                /* allocate a buffer to get the changelog back in chunks */
                char buf[CLBUF_SIZE];
                size_t ret = 0;
                while((ret = alpm_pkg_changelog_read(buf, CLBUF_SIZE, pkg, fp))) {
                        if(ret < CLBUF_SIZE) {
                                /* if we hit the end of the file, we need to add a null terminator */
                                *(buf + ret) = '\0';
                        }
                        fputs(buf, stdout);
                }
                alpm_pkg_changelog_close(pkg, fp);
                putchar('\n');
        }
}

void print_installed(alpm_db_t *db_local, alpm_pkg_t *pkg)
{
        const char *pkgname = alpm_pkg_get_name(pkg);
        const char *pkgver = alpm_pkg_get_version(pkg);
        alpm_pkg_t *lpkg = alpm_db_get_pkg(db_local, pkgname);
        if(lpkg) {
                const char *lpkgver = alpm_pkg_get_version(lpkg);
                const colstr_t *colstr = &config->colstr;
                if(strcmp(lpkgver, pkgver) == 0) {
                        printf(" %s[%s]%s", colstr->meta, _("installed"), colstr->nocolor);
                } else {
                        printf(" %s[%s: %s]%s", colstr->meta, _("installed"),
                                        lpkgver, colstr->nocolor);
                }
        }
}

/**
 * Display the details of a search.
 * @param db the database we're searching
 * @param targets the targets we're searching for
 * @param show_status show if the package is also in the local db
 */
int dump_pkg_search(alpm_db_t *db, alpm_list_t *targets, int show_status)
{
        int freelist = 0;
        alpm_db_t *db_local;
        alpm_list_t *i, *searchlist;
        unsigned short cols;
        const colstr_t *colstr = &config->colstr;

        if(show_status) {
                db_local = alpm_get_localdb(config->handle);
        }

        /* if we have a targets list, search for packages matching it */
        if(targets) {
                searchlist = alpm_db_search(db, targets);
                freelist = 1;
        } else {
                searchlist = alpm_db_get_pkgcache(db);
                freelist = 0;
        }
        if(searchlist == NULL) {
                return 1;
        }

        cols = getcols();
        for(i = searchlist; i; i = alpm_list_next(i)) {
                alpm_list_t *grp;
                alpm_pkg_t *pkg = i->data;

                if(config->quiet) {
                        fputs(alpm_pkg_get_name(pkg), stdout);
                } else {
                        printf("%s%s/%s%s %s%s%s", colstr->repo, alpm_db_get_name(db),
                                        colstr->title, alpm_pkg_get_name(pkg),
                                        colstr->version, alpm_pkg_get_version(pkg), colstr->nocolor);

                        if((grp = alpm_pkg_get_groups(pkg)) != NULL) {
                                alpm_list_t *k;
                                printf(" %s(", colstr->groups);
                                for(k = grp; k; k = alpm_list_next(k)) {
                                        const char *group = k->data;
                                        fputs(group, stdout);
                                        if(alpm_list_next(k)) {
                                                /* only print a spacer if there are more groups */
                                                putchar(' ');
                                        }
                                }
                                printf(")%s", colstr->nocolor);
                        }

                        if(show_status) {
                                print_installed(db_local, pkg);
                        }

                        /* we need a newline and initial indent first */
                        fputs("\n    ", stdout);
                        indentprint(alpm_pkg_get_desc(pkg), 4, cols);
                }
                fputc('\n', stdout);
        }

        /* we only want to free if the list was a search list */
        if(freelist) {
                alpm_list_free(searchlist);
        }

        return 0;
}

/* vim: set noet: */