PHP unlink_if_exists函数代码示例

function fetch_blacklist()
{
    global $config, $g;
    $url = $config['installedpackages']['dansguardianblacklist']['config'][0]['url'];
    if (is_url($url)) {
        conf_mount_rw();
        print "file download start..";
        unlink_if_exists("/usr/local/etc/dansguardian/lists/blacklist.tgz");
        exec("/usr/bin/fetch -o /usr/local/etc/dansguardian/lists/blacklist.tgz " . escapeshellarg($url));
        chdir("/usr/local/etc/dansguardian/lists");
        if (is_dir("blacklists.old")) {
            exec('rm -rf /usr/local/etc/dansguardian/lists/blacklists.old');
        }
        rename("blacklists", "blacklists.old");
        exec('/usr/bin/tar -xvzf /usr/local/etc/dansguardian/lists/blacklist.tgz 2>&1', $output, $return);
        if (preg_match("/x\\W+(\\w+)/", $output[0], $matches)) {
            if ($matches[1] != "blacklists") {
                rename("./" . $matches[1], "blacklists");
            }
            read_lists();
        } else {
            file_notice("Dansguardian - Could not determine Blacklist extract dir. Categories not updated", "");
        }
    } else {
        file_notice("Dansguardian - Blacklist url is invalid.", "");
    }
}

function fetch_blacklist($log_notice = true, $install_process = false)
{
    global $config, $g;
    if (is_array($config['installedpackages']['dansguardianblacklist']) && is_array($config['installedpackages']['dansguardianblacklist']['config'])) {
        $url = $config['installedpackages']['dansguardianblacklist']['config'][0]['url'];
        $uw = "Found a previouns install, checking Blacklist config...";
    } else {
        $uw = "Found a clean install, reading default access lists...";
    }
    conf_mount_rw();
    if ($install_process == true) {
        update_output_window($uw);
    }
    if (isset($url) && is_url($url)) {
        if ($log_notice == true) {
            print "file download start..";
            unlink_if_exists("/usr/local/pkg/blacklist.tgz");
            exec("/usr/bin/fetch -o /usr/local/pkg/blacklist.tgz " . escapeshellarg($url), $output, $return);
        } else {
            #install process
            if (file_exists("/usr/local/pkg/blacklist.tgz")) {
                update_output_window("Found previous blacklist database, skipping download...");
                $return = 0;
            } else {
                update_output_window("Fetching blacklist");
                download_file_with_progress_bar($url, "/usr/local/pkg/blacklist.tgz");
                if (file_exists("/usr/local/pkg/blacklist.tgz")) {
                    $return = 0;
                }
            }
        }
        if ($return == 0) {
            chdir(DANSGUARDIAN_DIR . "/etc/dansguardian/lists");
            if (is_dir("blacklists.old")) {
                exec('rm -rf ' . DANSGUARDIAN_DIR . '/etc/dansguardian/lists/blacklists.old');
            }
            rename("blacklists", "blacklists.old");
            exec('/usr/bin/tar -xvzf /usr/local/pkg/blacklist.tgz 2>&1', $output, $return);
            if (preg_match("/x\\W+(\\w+)/", $output[1], $matches)) {
                if ($matches[1] != "blacklists") {
                    rename("./" . $matches[1], "blacklists");
                }
                read_lists($log_notice);
            } else {
                file_notice("Dansguardian - Could not determine Blacklist extract dir. Categories not updated", "");
            }
        } else {
            file_notice("Dansguardian - Could not fetch blacklists from url", "");
        }
    } else {
        if ($install_process == true) {
            read_lists(false, $uw);
        } elseif (!empty($url)) {
            file_notice("Dansguardian - Blacklist url is invalid.", "");
        }
    }
}

function crypt_data($val, $pass, $opt)
{
    $file = tempnam("/tmp", "php-encrypt");
    file_put_contents("{$file}.dec", $val);
    exec("/usr/bin/openssl enc {$opt} -aes-256-cbc -in {$file}.dec -out {$file}.enc -k " . escapeshellarg($pass));
    if (file_exists("{$file}.enc")) {
        $result = file_get_contents("{$file}.enc");
    } else {
        $result = "";
        log_error("Failed to encrypt/decrypt data!");
    }
    unlink_if_exists($file);
    unlink_if_exists("{$file}.dec");
    unlink_if_exists("{$file}.enc");
    return $result;
}

 $domain = htmlspecialchars($_POST['domain']);
 $domainparse = str_replace('.', '\\.', $domain);
 $pfb['dsupp'] =& $config['installedpackages']['pfblockerngdnsblsettings']['config'][0]['suppression'];
 // Collect existing suppression list
 $dnssupp_ex = collectsuppression();
 // Query for domain in Unbound DNSBL file.
 $dnsbl_query = exec("/usr/bin/grep -Hm1 ' \"{$domain} 60 IN A' {$pfb['dnsbl_file']}.conf");
 // Save new suppress domain to suppress list.
 if (empty($dnsbl_query)) {
     $savemsg = gettext("Domain: [ {$domain} ] does not exist in the Unbound Resolver DNSBL");
     exec("/usr/local/sbin/unbound-control -c {$pfb['dnsbldir']}/unbound.conf flush {$domain}.");
 } else {
     // Remove domain from Unbound resolver pfb_dnsbl.conf file
     exec("{$pfb['sed']} -i '' '/ \"{$domain} 60 IN A/d' {$pfb['dnsbl_file']}.conf");
     $cache_dumpfile = '/var/tmp/unbound_cache';
     unlink_if_exists("{$cache_dumpfile}");
     $chroot_cmd = "chroot -u unbound -g unbound / /usr/local/sbin/unbound-control -c {$g['unbound_chroot_path']}/unbound.conf";
     exec("{$chroot_cmd} dump_cache > {$cache_dumpfile}");
     exec("{$chroot_cmd} reload");
     if (file_exists($cache_dumpfile) && filesize($cache_dumpfile) > 0) {
         exec("{$chroot_cmd} load_cache < {$cache_dumpfile}");
     }
     exec("/usr/local/sbin/unbound-control -c {$pfb['dnsbldir']}/unbound.conf flush {$domain}");
     if (!in_array($domain, $dnssupp_ex)) {
         $dnssupp_ex[] = $domain;
         $dnssupp_new = base64_encode(implode("\n", $dnssupp_ex));
         $pfb['dsupp'] = "{$dnssupp_new}";
         write_config("pfBlockerNG: Added {$domain} to DNSBL suppress list");
     }
     $savemsg = gettext("Removed Domain: [ {$domain} ] from Unbound Resolver DNSBL. You may need to flush your browsers DNS Cache");
 }

function begin_install()
{
    global $g, $savemsg;
    if (file_exists("/tmp/install_complete")) {
        return;
    }
    unlink_if_exists("/tmp/install_complete");
    update_installer_status_win(sprintf(gettext("Beginning installation on disk %s."), $disk));
    start_installation();
}

    // Delete any leftover suricata PID files in /var/run
    unlink_if_exists("{$g['varrun_path']}/suricata_*.pid");
}
// Hard kill any running Barnyard2 processes
if (is_process_running("barnyard")) {
    killbyname("barnyard2");
    sleep(2);
    // Delete any leftover barnyard2 PID files in /var/run
    unlink_if_exists("{$g['varrun_path']}/barnyard2_*.pid");
}
// Set flag for post-install in progress
$g['suricata_postinstall'] = true;
// Mount file system read/write so we can modify some files
conf_mount_rw();
// Remove any previously installed script since we rebuild it
unlink_if_exists("{$rcdir}suricata.sh");
// Create the top-tier log directory
safe_mkdir(SURICATALOGDIR);
// Create the IP Rep and SID Mods lists directory
safe_mkdir(SURICATA_SID_MODS_PATH);
safe_mkdir(SURICATA_IPREP_PATH);
// Make sure config variable is an array
if (!is_array($config['installedpackages']['suricata']['config'][0])) {
    $config['installedpackages']['suricata']['config'][0] = array();
}
// Download the latest GeoIP DB updates and create cron task if the feature is not disabled
if ($config['installedpackages']['suricata']['config'][0]['autogeoipupdate'] != 'off') {
    log_error(gettext("[Suricata] Installing free GeoIP country database files..."));
    include "/usr/local/pkg/suricata/suricata_geoipupdate.php";
    install_cron_job("/usr/bin/nice -n20 /usr/local/bin/php -f /usr/local/pkg/suricata/suricata_geoipupdate.php", TRUE, 0, 0, 8, "*", "*", "root");
}

defCmdT("last 1000 NTP log entries", "/usr/local/sbin/clog /var/log/ntpd.log 2>&1 | tail -n 1000");
defCmdT("last 1000 OpenVPN log entries", "/usr/local/sbin/clog /var/log/openvpn.log 2>&1 | tail -n 1000");
defCmdT("last 1000 Captive Portal auth log entries", "/usr/local/sbin/clog /var/log/portalauth.log 2>&1 | tail -n 1000");
defCmdT("last 1000 PPP log entries", "/usr/local/sbin/clog /var/log/poes.log 2>&1 | tail -n 1000");
defCmdT("last 1000 relayd log entries", "/usr/local/sbin/clog /var/log/relayd.log 2>&1 | tail -n 1000");
defCmdT("last 1000 resolver log entries", "/usr/local/sbin/clog /var/log/resolver.log 2>&1 | tail -n 1000");
defCmdT("last 1000 routing log entries", "/usr/local/sbin/clog /var/log/routing.log 2>&1 | tail -n 1000");
defCmdT("last 1000 wireless log entries", "/usr/local/sbin/clog /var/log/wireless.log 2>&1 | tail -n 1000");
if (file_exists("/tmp/PHP_errors.log")) {
    defCmdT("PHP Error Log", "/bin/cat /tmp/PHP_errors.log");
}
defCmdT("System Message Buffer", "/sbin/dmesg -a");
defCmdT("System Message Buffer (Boot)", "/bin/cat /var/log/dmesg.boot");
defCmdT("sysctl values", "/sbin/sysctl -a");
defCmdT("Kernel Environment", "/bin/kenv");
defCmdT("Installed OS Packages", "/usr/sbin/pkg info");
exec("/bin/date", $dateOutput, $dateStatus);
$currentDate = $dateOutput[0];
$pgtitle = array("{$g['product_name']}", "Status");
include "head.inc";
print_info_box(gettext("Make sure all sensitive information is removed! (Passwords, etc.) before posting " . "information from this page in public places (like mailing lists).") . '<br />' . gettext("Common password fields in config.xml have been automatically redacted.") . '<br />' . gettext("When the page has finished loading, the output will be stored in {$output_file}. It may be downloaded via scp or ") . "<a href=\"/exec.php?dlPath={$output_file}\">" . gettext("Diagnostics > Command Prompt.") . '</a>');
listCmds();
execCmds();
print gettext("Saving output to archive...");
if (is_dir($output_path)) {
    mwexec("/usr/bin/tar czpf " . escapeshellarg($output_file) . " -C " . escapeshellarg(dirname($output_path)) . " " . escapeshellarg(basename($output_path)));
    unlink_if_exists("{$output_path}/*");
    @rmdir($output_path);
}
print gettext("Done.");
include "foot.inc";

                 $input_errors[] = $vertical_bar_err_text;
             }
         } else {
             $final_address_details[] = sprintf(gettext("Entry added %s"), date('r'));
         }
     }
 } else {
     if ($_POST['type'] == "url" || $_POST['type'] == "url_ports") {
         $desc_fmt_err_found = false;
         /* item is a url type */
         for ($x = 0; $x < $max_alias_addresses - 1; $x++) {
             $_POST['address' . $x] = trim($_POST['address' . $x]);
             if ($_POST['address' . $x]) {
                 /* fetch down and add in */
                 $temp_filename = tempnam("{$g['tmp_path']}/", "alias_import");
                 unlink_if_exists($temp_filename);
                 $verify_ssl = isset($config['system']['checkaliasesurlcert']);
                 mkdir($temp_filename);
                 download_file($_POST['address' . $x], $temp_filename . "/aliases", $verify_ssl);
                 /* if the item is tar gzipped then extract */
                 if (stristr($_POST['address' . $x], ".tgz")) {
                     process_alias_tgz($temp_filename);
                 } else {
                     if (stristr($_POST['address' . $x], ".zip")) {
                         process_alias_unzip($temp_filename);
                     }
                 }
                 if (!isset($alias['aliasurl'])) {
                     $alias['aliasurl'] = array();
                 }
                 $alias['aliasurl'][] = $_POST['address' . $x];

    exit;
}
if ($_POST['apply']) {
    write_config();
    $retval = 0;
    /* Setup pf rules since the user may have changed the optimization value */
    $retval = filter_configure();
    $savemsg = get_std_save_message($retval);
    if (stristr($retval, "error") != true) {
        $savemsg = get_std_save_message($retval);
    } else {
        $savemsg = $retval;
    }
    /* reset rrd queues */
    unlink_if_exists("/var/db/rrd/*queuedrops.rrd");
    unlink_if_exists("/var/db/rrd/*queues.rrd");
    enable_rrd_graphing();
    clear_subsystem_dirty('shaper');
}
$pgtitle = array(gettext("Firewall"), gettext("Traffic Shaper"), gettext("Wizards"));
$shortcut_section = "trafficshaper";
$wizards = array(gettext("Multiple Lan/Wan") => "traffic_shaper_wizard_multi_all.xml", gettext("Dedicated Links") => "traffic_shaper_wizard_dedicated.xml");
include "head.inc";
if ($input_errors) {
    print_input_errors($input_errors);
}
$tab_array = array();
$tab_array[] = array(gettext("By Interface"), false, "firewall_shaper.php");
$tab_array[] = array(gettext("By Queue"), false, "firewall_shaper_queues.php");
$tab_array[] = array(gettext("Limiter"), false, "firewall_shaper_vinterface.php");
$tab_array[] = array(gettext("Wizards"), true, "firewall_shaper_wizards.php");

            @copy("{$tmpfname}/{$emergingthreats_filename_md5}", "{$suricatadir}{$emergingthreats_filename_md5}");
        }
        if ($pkg_interface != "console") {
            update_status(gettext("Extraction of {$et_name} rules completed..."));
            update_output_window(gettext("Installation of {$et_name} rules completed..."));
        }
        error_log(gettext("\tInstallation of {$et_name} rules completed.\n"), 3, SURICATA_RULES_UPD_LOGFILE);
        rmdir_recursive("{$tmpfname}/emerging");
    }
}
/* Untar Snort rules file to tmp */
if ($snortdownload == 'on') {
    if (file_exists("{$tmpfname}/{$snort_filename}")) {
        /* Remove the old Snort rules files */
        $vrt_prefix = VRT_FILE_PREFIX;
        unlink_if_exists("{$suricatadir}rules/{$vrt_prefix}*.rules");
        if ($pkg_interface != "console") {
            update_status(gettext("Extracting Snort VRT rules..."));
            update_output_window(gettext("Installing Sourcefire VRT rules..."));
        }
        error_log(gettext("\tExtracting and installing Snort VRT rules...\n"), 3, SURICATA_RULES_UPD_LOGFILE);
        /* extract snort.org rules and add prefix to all snort.org files */
        safe_mkdir("{$tmpfname}/snortrules");
        exec("/usr/bin/tar xzf {$tmpfname}/{$snort_filename} -C {$tmpfname}/snortrules rules/");
        $files = glob("{$tmpfname}/snortrules/rules/*.rules");
        foreach ($files as $file) {
            $newfile = basename($file);
            @copy($file, "{$suricatadir}rules/" . VRT_FILE_PREFIX . "{$newfile}");
        }
        /* IP lists */
        $files = glob("{$tmpfname}/snortrules/rules/*.txt");

    }
} elseif ($openappid_detectors == 'on') {
    /**************************************************************************************/
    /* Only updated OpenAppID detectors, so do not need to rebuild all interface rules.   */
    /* Restart snort if running, and not in post-install, so as to pick up the detectors. */
    /**************************************************************************************/
    if (!$g['snort_postinstall'] && is_service_running("snort") && count($config['installedpackages']['snortglobal']['rule']) > 0) {
        if ($pkg_interface != "console") {
            update_status(gettext('Restarting Snort to activate the new OpenAppID detectors...'));
            update_output_window(gettext("Please wait ... restarting Snort will take some time..."));
        }
        error_log(gettext("\tRestarting Snort to activate the new OpenAppID detectors...\n"), 3, SNORT_RULES_UPD_LOGFILE);
        touch("{$g['varrun_path']}/snort_pkg_starting.lck");
        snort_restart_all_interfaces(TRUE);
        sleep(2);
        unlink_if_exists("{$g['varrun_path']}/snort_pkg_starting.lck");
        if ($pkg_interface != "console") {
            update_output_window(gettext("Snort has restarted with your new set of OpenAppID detectors..."));
        }
        log_error(gettext("[Snort] Snort has restarted with your new set of OpenAppID detectors..."));
        error_log(gettext("\tSnort has restarted with your new set of OpenAppID detectors.\n"), 3, SNORT_RULES_UPD_LOGFILE);
    } else {
        if ($pkg_interface != "console") {
            update_output_window(gettext("The rules update task is complete..."));
        }
    }
}
/*  remove $tmpfname files */
if (is_dir("{$tmpfname}")) {
    rmdir_recursive($tmpfname);
}

    if (!$input_errors) {
        // We have specified a new location for thebrig's installation, and it's valid, and we don't already have
        // a jail at the old location. Call thebrig_populate, which will move all the web stuff and create the
        // directory tree
        // Also add startup command when thebrig completly installed
        thebrig_populate($pconfig['rootfolder'], $config['thebrig']['rootfolder']);
        $config['thebrig']['rootfolder'] = $pconfig['rootfolder'];
        // Store the newly specified folder in the XML config
        $config['thebrig']['template'] = $pconfig['template'];
        $config['thebrig']['basejail']['folder'] = $pconfig['basejail'];
        $langfile = file("ext/thebrig/lang.inc");
        $version_1 = preg_split("/VERSION_NBR, 'v/", $langfile[1]);
        $config['thebrig']['version'] = 0 + substr($version_1[1], 0, 3);
        write_config();
        // Write the config to disk
        unlink_if_exists("/tmp/thebrig.tmp");
        // Whatever we did, we did it successfully
        $retval = 0;
        $savemsg = get_std_save_message($retval);
    }
    // end of no input errors
}
// end of POST
// Display the page title, based on the constants defined in lang.inc
$pgtitle = array(_THEBRIG_EXTN, _THEBRIG_TITLE, _THEBRIG_BASIC_CONFIG, _THEBRIG_VERSION_NBR);
// Uses the global fbegin include
include "fbegin.inc";
// This will evaluate if there were any input errors from prior to the user clicking "save"
if ($input_errors) {
    print_input_errors($input_errors);
} elseif ($savemsg) {

        }
    }
    return FALSE;
}
if (isset($_POST['upload'])) {
    if ($_FILES["iprep_fileup"]["error"] == UPLOAD_ERR_OK) {
        $tmp_name = $_FILES["iprep_fileup"]["tmp_name"];
        $name = $_FILES["iprep_fileup"]["name"];
        move_uploaded_file($tmp_name, "{$iprep_path}{$name}");
    } else {
        $input_errors[] = gettext("Failed to upload file {$_FILES["iprep_fileup"]["name"]}");
    }
}
if (isset($_POST['iplist_delete']) && isset($_POST['iplist_fname'])) {
    if (!snort_is_iplist_active($_POST['iplist_fname'])) {
        unlink_if_exists("{$iprep_path}{$_POST['iplist_fname']}");
    } else {
        $input_errors[] = gettext("This IP List is currently assigned as a Whitelist or Blackist for an interface and cannot be deleted.");
    }
}
if (isset($_POST['iplist_edit']) && isset($_POST['iplist_fname'])) {
    $file = $iprep_path . basename($_POST['iplist_fname']);
    $data = file_get_contents($file);
    if ($data !== FALSE) {
        $iplist_data = htmlspecialchars($data);
        $iplist_edit_style = "display: table-row-group;";
        $iplist_name = basename($_POST['iplist_fname']);
        unset($data);
    } else {
        $input_errors[] = gettext("An error occurred reading the file.");
    }

     $a_nat[$id]['ips_policy_enable'] = 'off';
     unset($a_nat[$id]['ips_policy']);
 }
 $enabled_items = "";
 if (is_array($_POST['toenable'])) {
     $enabled_items = implode("||", $_POST['toenable']);
 } else {
     $enabled_items = $_POST['toenable'];
 }
 $a_nat[$id]['rulesets'] = $enabled_items;
 if ($_POST['autoflowbits'] == "on") {
     $a_nat[$id]['autoflowbitrules'] = 'on';
 } else {
     $a_nat[$id]['autoflowbitrules'] = 'off';
     if (file_exists("{$snortdir}/snort_{$snort_uuid}_{$if_real}/rules/{$flowbit_rules_file}")) {
         unlink_if_exists("{$snortdir}/snort_{$snort_uuid}_{$if_real}/rules/{$flowbit_rules_file}");
     }
 }
 write_config("Snort pkg: save enabled rule categories for {$a_nat[$id]['interface']}.");
 /*************************************************/
 /* Update the snort conf file and rebuild the    */
 /* rules for this interface.                     */
 /*************************************************/
 $rebuild_rules = true;
 conf_mount_rw();
 snort_generate_conf($a_nat[$id]);
 conf_mount_ro();
 $rebuild_rules = false;
 /* Soft-restart Snort to live-load new rules */
 snort_reload_config($a_nat[$id]);
 $pconfig = $_POST;

    require_once "/etc/inc/filter.inc";
    require_once "/etc/inc/config.inc";
    $hour = date('H');
    $pfbdir = '/usr/local/pkg/pfblocker';
    $updates = 0;
    $cron = array('01hour' => 1, '04hours' => 4, '12hours' => 12, 'EveryDay' => 23);
    if ($config['installedpackages']['pfblockerlists']['config'] != "") {
        foreach ($config['installedpackages']['pfblockerlists']['config'] as $list) {
            if (is_array($list['row'])) {
                foreach ($list['row'] as $row) {
                    if ($row['url'] != "" && $hour > 0) {
                        $md5_url = md5($row['url']);
                        $update_hour = array_key_exists($list['cron'], $cron) ? $cron[$list['cron']] : 25;
                        if ($row['url'] && $hour % $update_hour == 0) {
                            print $update_hour . " " . $pfbdir . '/' . $md5_url . '.txt' . "\n";
                            unlink_if_exists($pfbdir . '/' . $md5_url . '.txt');
                            $updates++;
                        }
                    }
                }
            }
        }
    }
    if ($updates > 0) {
        include "/usr/local/pkg/pfblocker.inc";
        sync_package_pfblocker("cron");
    }
}
function pfblocker_get_countries()
{
    $files = array("Africa" => "/usr/local/pkg/Africa_cidr.txt", "Asia" => "/usr/local/pkg/Asia_cidr.txt", "Europe" => "/usr/local/pkg/Europe_cidr.txt", "North America" => "/usr/local/pkg/North_America_cidr.txt", "Oceania" => "/usr/local/pkg/Oceania_cidr.txt", "South America" => "/usr/local/pkg/South_America_cidr.txt");