| #!/usr/bin/env perl |
| #*************************************************************************** |
| # _ _ ____ _ |
| # Project ___| | | | _ \| | |
| # / __| | | | |_) | | |
| # | (__| |_| | _ <| |___ |
| # \___|\___/|_| \_\_____| |
| # |
| # Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al. |
| # |
| # This software is licensed as described in the file COPYING, which |
| # you should have received as part of this distribution. The terms |
| # are also available at https://curl.haxx.se/docs/copyright.html. |
| # |
| # You may opt to use, copy, modify, merge, publish, distribute and/or sell |
| # copies of the Software, and permit persons to whom the Software is |
| # furnished to do so, under the terms of the COPYING file. |
| # |
| # This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
| # KIND, either express or implied. |
| # |
| ########################################################################### |
| |
| # This is a server designed for the curl test suite. |
| # |
| # In December 2009 we started remaking the server to support more protocols |
| # that are similar in spirit. Like POP3, IMAP and SMTP in addition to the FTP |
| # it already supported since a long time. Note that it still only supports one |
| # protocol per invoke. You need to start multiple servers to support multiple |
| # protocols simultaneously. |
| # |
| # It is meant to exercise curl, it is not meant to be a fully working |
| # or even very standard compliant server. |
| # |
| # You may optionally specify port on the command line, otherwise it'll |
| # default to port 8921. |
| # |
| # All socket/network/TCP related stuff is done by the 'sockfilt' program. |
| # |
| |
| BEGIN { |
| push(@INC, $ENV{'srcdir'}) if(defined $ENV{'srcdir'}); |
| push(@INC, "."); |
| # sub second timestamping needs Time::HiRes |
| eval { |
| no warnings "all"; |
| require Time::HiRes; |
| import Time::HiRes qw( gettimeofday ); |
| } |
| } |
| |
| use strict; |
| use warnings; |
| use IPC::Open2; |
| use Digest::MD5; |
| |
| require "getpart.pm"; |
| require "ftp.pm"; |
| require "directories.pm"; |
| |
| use serverhelp qw( |
| servername_str |
| server_pidfilename |
| server_logfilename |
| mainsockf_pidfilename |
| mainsockf_logfilename |
| datasockf_pidfilename |
| datasockf_logfilename |
| ); |
| |
| use sshhelp qw( |
| exe_ext |
| ); |
| |
| #********************************************************************** |
| # global vars... |
| # |
| my $verbose = 0; # set to 1 for debugging |
| my $idstr = ""; # server instance string |
| my $idnum = 1; # server instance number |
| my $ipvnum = 4; # server IPv number (4 or 6) |
| my $proto = 'ftp'; # default server protocol |
| my $srcdir; # directory where ftpserver.pl is located |
| my $srvrname; # server name for presentation purposes |
| my $cwd_testno; # test case numbers extracted from CWD command |
| my $path = '.'; |
| my $logdir = $path .'/log'; |
| |
| #********************************************************************** |
| # global vars used for server address and primary listener port |
| # |
| my $port = 8921; # default primary listener port |
| my $listenaddr = '127.0.0.1'; # default address for listener port |
| |
| #********************************************************************** |
| # global vars used for file names |
| # |
| my $pidfile; # server pid file name |
| my $logfile; # server log file name |
| my $mainsockf_pidfile; # pid file for primary connection sockfilt process |
| my $mainsockf_logfile; # log file for primary connection sockfilt process |
| my $datasockf_pidfile; # pid file for secondary connection sockfilt process |
| my $datasockf_logfile; # log file for secondary connection sockfilt process |
| |
| #********************************************************************** |
| # global vars used for server logs advisor read lock handling |
| # |
| my $SERVERLOGS_LOCK = 'log/serverlogs.lock'; |
| my $serverlogslocked = 0; |
| |
| #********************************************************************** |
| # global vars used for child processes PID tracking |
| # |
| my $sfpid; # PID for primary connection sockfilt process |
| my $slavepid; # PID for secondary connection sockfilt process |
| |
| #********************************************************************** |
| # global typeglob filehandle vars to read/write from/to sockfilters |
| # |
| local *SFREAD; # used to read from primary connection |
| local *SFWRITE; # used to write to primary connection |
| local *DREAD; # used to read from secondary connection |
| local *DWRITE; # used to write to secondary connection |
| |
| my $sockfilt_timeout = 5; # default timeout for sockfilter eXsysreads |
| |
| #********************************************************************** |
| # global vars which depend on server protocol selection |
| # |
| my %commandfunc; # protocol command specific function callbacks |
| my %displaytext; # text returned to client before callback runs |
| |
| #********************************************************************** |
| # global vars customized for each test from the server commands file |
| # |
| my $ctrldelay; # set if server should throttle ctrl stream |
| my $datadelay; # set if server should throttle data stream |
| my $retrweirdo; # set if ftp server should use RETRWEIRDO |
| my $retrnosize; # set if ftp server should use RETRNOSIZE |
| my $pasvbadip; # set if ftp server should use PASVBADIP |
| my $nosave; # set if ftp server should not save uploaded data |
| my $nodataconn; # set if ftp srvr doesn't establish or accepts data channel |
| my $nodataconn425; # set if ftp srvr doesn't establish data ch and replies 425 |
| my $nodataconn421; # set if ftp srvr doesn't establish data ch and replies 421 |
| my $nodataconn150; # set if ftp srvr doesn't establish data ch and replies 150 |
| my @capabilities; # set if server supports capability commands |
| my @auth_mechs; # set if server supports authentication commands |
| my %fulltextreply; # |
| my %commandreply; # |
| my %customcount; # |
| my %delayreply; # |
| |
| #********************************************************************** |
| # global variables for to test ftp wildcardmatching or other test that |
| # need flexible LIST responses.. and corresponding files. |
| # $ftptargetdir is keeping the fake "name" of LIST directory. |
| # |
| my $ftplistparserstate; |
| my $ftptargetdir=""; |
| |
| #********************************************************************** |
| # global variables used when running a ftp server to keep state info |
| # relative to the secondary or data sockfilt process. Values of these |
| # variables should only be modified using datasockf_state() sub, given |
| # that they are closely related and relationship is a bit awkward. |
| # |
| my $datasockf_state = 'STOPPED'; # see datasockf_state() sub |
| my $datasockf_mode = 'none'; # ['none','active','passive'] |
| my $datasockf_runs = 'no'; # ['no','yes'] |
| my $datasockf_conn = 'no'; # ['no','yes'] |
| |
| #********************************************************************** |
| # global vars used for signal handling |
| # |
| my $got_exit_signal = 0; # set if program should finish execution ASAP |
| my $exit_signal; # first signal handled in exit_signal_handler |
| |
| #********************************************************************** |
| # Mail related definitions |
| # |
| my $TEXT_PASSWORD = "secret"; |
| my $POP3_TIMESTAMP = "<1972.987654321\@curl>"; |
| |
| #********************************************************************** |
| # exit_signal_handler will be triggered to indicate that the program |
| # should finish its execution in a controlled way as soon as possible. |
| # For now, program will also terminate from within this handler. |
| # |
| sub exit_signal_handler { |
| my $signame = shift; |
| # For now, simply mimic old behavior. |
| killsockfilters($proto, $ipvnum, $idnum, $verbose); |
| unlink($pidfile); |
| if($serverlogslocked) { |
| $serverlogslocked = 0; |
| clear_advisor_read_lock($SERVERLOGS_LOCK); |
| } |
| exit; |
| } |
| |
| #********************************************************************** |
| # logmsg is general message logging subroutine for our test servers. |
| # |
| sub logmsg { |
| my $now; |
| # sub second timestamping needs Time::HiRes |
| if($Time::HiRes::VERSION) { |
| my ($seconds, $usec) = gettimeofday(); |
| my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = |
| localtime($seconds); |
| $now = sprintf("%02d:%02d:%02d.%06d ", $hour, $min, $sec, $usec); |
| } |
| else { |
| my $seconds = time(); |
| my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = |
| localtime($seconds); |
| $now = sprintf("%02d:%02d:%02d ", $hour, $min, $sec); |
| } |
| if(open(LOGFILEFH, ">>$logfile")) { |
| print LOGFILEFH $now; |
| print LOGFILEFH @_; |
| close(LOGFILEFH); |
| } |
| } |
| |
| sub ftpmsg { |
| # append to the server.input file |
| open(INPUT, ">>log/server$idstr.input") || |
| logmsg "failed to open log/server$idstr.input\n"; |
| |
| print INPUT @_; |
| close(INPUT); |
| |
| # use this, open->print->close system only to make the file |
| # open as little as possible, to make the test suite run |
| # better on windows/cygwin |
| } |
| |
| #********************************************************************** |
| # eXsysread is a wrapper around perl's sysread() function. This will |
| # repeat the call to sysread() until it has actually read the complete |
| # number of requested bytes or an unrecoverable condition occurs. |
| # On success returns a positive value, the number of bytes requested. |
| # On failure or timeout returns zero. |
| # |
| sub eXsysread { |
| my $FH = shift; |
| my $scalar = shift; |
| my $nbytes = shift; |
| my $timeout = shift; # A zero timeout disables eXsysread() time limit |
| # |
| my $time_limited = 0; |
| my $timeout_rest = 0; |
| my $start_time = 0; |
| my $nread = 0; |
| my $rc; |
| |
| $$scalar = ""; |
| |
| if((not defined $nbytes) || ($nbytes < 1)) { |
| logmsg "Error: eXsysread() failure: " . |
| "length argument must be positive\n"; |
| return 0; |
| } |
| if((not defined $timeout) || ($timeout < 0)) { |
| logmsg "Error: eXsysread() failure: " . |
| "timeout argument must be zero or positive\n"; |
| return 0; |
| } |
| if($timeout > 0) { |
| # caller sets eXsysread() time limit |
| $time_limited = 1; |
| $timeout_rest = $timeout; |
| $start_time = int(time()); |
| } |
| |
| while($nread < $nbytes) { |
| if($time_limited) { |
| eval { |
| local $SIG{ALRM} = sub { die "alarm\n"; }; |
| alarm $timeout_rest; |
| $rc = sysread($FH, $$scalar, $nbytes - $nread, $nread); |
| alarm 0; |
| }; |
| $timeout_rest = $timeout - (int(time()) - $start_time); |
| if($timeout_rest < 1) { |
| logmsg "Error: eXsysread() failure: timed out\n"; |
| return 0; |
| } |
| } |
| else { |
| $rc = sysread($FH, $$scalar, $nbytes - $nread, $nread); |
| } |
| if($got_exit_signal) { |
| logmsg "Error: eXsysread() failure: signalled to die\n"; |
| return 0; |
| } |
| if(not defined $rc) { |
| if($!{EINTR}) { |
| logmsg "Warning: retrying sysread() interrupted system call\n"; |
| next; |
| } |
| if($!{EAGAIN}) { |
| logmsg "Warning: retrying sysread() due to EAGAIN\n"; |
| next; |
| } |
| if($!{EWOULDBLOCK}) { |
| logmsg "Warning: retrying sysread() due to EWOULDBLOCK\n"; |
| next; |
| } |
| logmsg "Error: sysread() failure: $!\n"; |
| return 0; |
| } |
| if($rc < 0) { |
| logmsg "Error: sysread() failure: returned negative value $rc\n"; |
| return 0; |
| } |
| if($rc == 0) { |
| logmsg "Error: sysread() failure: read zero bytes\n"; |
| return 0; |
| } |
| $nread += $rc; |
| } |
| return $nread; |
| } |
| |
| #********************************************************************** |
| # read_mainsockf attempts to read the given amount of output from the |
| # sockfilter which is in use for the main or primary connection. This |
| # reads untranslated sockfilt lingo which may hold data read from the |
| # main or primary socket. On success returns 1, otherwise zero. |
| # |
| sub read_mainsockf { |
| my $scalar = shift; |
| my $nbytes = shift; |
| my $timeout = shift; # Optional argument, if zero blocks indefinitely |
| my $FH = \*SFREAD; |
| |
| if(not defined $timeout) { |
| $timeout = $sockfilt_timeout + ($nbytes >> 12); |
| } |
| if(eXsysread($FH, $scalar, $nbytes, $timeout) != $nbytes) { |
| my ($fcaller, $lcaller) = (caller)[1,2]; |
| logmsg "Error: read_mainsockf() failure at $fcaller " . |
| "line $lcaller. Due to eXsysread() failure\n"; |
| return 0; |
| } |
| return 1; |
| } |
| |
| #********************************************************************** |
| # read_datasockf attempts to read the given amount of output from the |
| # sockfilter which is in use for the data or secondary connection. This |
| # reads untranslated sockfilt lingo which may hold data read from the |
| # data or secondary socket. On success returns 1, otherwise zero. |
| # |
| sub read_datasockf { |
| my $scalar = shift; |
| my $nbytes = shift; |
| my $timeout = shift; # Optional argument, if zero blocks indefinitely |
| my $FH = \*DREAD; |
| |
| if(not defined $timeout) { |
| $timeout = $sockfilt_timeout + ($nbytes >> 12); |
| } |
| if(eXsysread($FH, $scalar, $nbytes, $timeout) != $nbytes) { |
| my ($fcaller, $lcaller) = (caller)[1,2]; |
| logmsg "Error: read_datasockf() failure at $fcaller " . |
| "line $lcaller. Due to eXsysread() failure\n"; |
| return 0; |
| } |
| return 1; |
| } |
| |
| sub sysread_or_die { |
| my $FH = shift; |
| my $scalar = shift; |
| my $length = shift; |
| my $fcaller; |
| my $lcaller; |
| my $result; |
| |
| $result = sysread($$FH, $$scalar, $length); |
| |
| if(not defined $result) { |
| ($fcaller, $lcaller) = (caller)[1,2]; |
| logmsg "Failed to read input\n"; |
| logmsg "Error: $srvrname server, sysread error: $!\n"; |
| logmsg "Exited from sysread_or_die() at $fcaller " . |
| "line $lcaller. $srvrname server, sysread error: $!\n"; |
| killsockfilters($proto, $ipvnum, $idnum, $verbose); |
| unlink($pidfile); |
| if($serverlogslocked) { |
| $serverlogslocked = 0; |
| clear_advisor_read_lock($SERVERLOGS_LOCK); |
| } |
| exit; |
| } |
| elsif($result == 0) { |
| ($fcaller, $lcaller) = (caller)[1,2]; |
| logmsg "Failed to read input\n"; |
| logmsg "Error: $srvrname server, read zero\n"; |
| logmsg "Exited from sysread_or_die() at $fcaller " . |
| "line $lcaller. $srvrname server, read zero\n"; |
| killsockfilters($proto, $ipvnum, $idnum, $verbose); |
| unlink($pidfile); |
| if($serverlogslocked) { |
| $serverlogslocked = 0; |
| clear_advisor_read_lock($SERVERLOGS_LOCK); |
| } |
| exit; |
| } |
| |
| return $result; |
| } |
| |
| sub startsf { |
| my $mainsockfcmd = "./server/sockfilt".exe_ext('SRV')." " . |
| "--ipv$ipvnum --port $port " . |
| "--pidfile \"$mainsockf_pidfile\" " . |
| "--logfile \"$mainsockf_logfile\""; |
| $sfpid = open2(*SFREAD, *SFWRITE, $mainsockfcmd); |
| |
| print STDERR "$mainsockfcmd\n" if($verbose); |
| |
| print SFWRITE "PING\n"; |
| my $pong; |
| sysread_or_die(\*SFREAD, \$pong, 5); |
| |
| if($pong !~ /^PONG/) { |
| logmsg "Failed sockfilt command: $mainsockfcmd\n"; |
| killsockfilters($proto, $ipvnum, $idnum, $verbose); |
| unlink($pidfile); |
| if($serverlogslocked) { |
| $serverlogslocked = 0; |
| clear_advisor_read_lock($SERVERLOGS_LOCK); |
| } |
| die "Failed to start sockfilt!"; |
| } |
| } |
| |
| #********************************************************************** |
| # Returns the given test's reply data |
| # |
| sub getreplydata { |
| my ($testno) = @_; |
| my $testpart = ""; |
| |
| $testno =~ s/^([^0-9]*)//; |
| if($testno > 10000) { |
| $testpart = $testno % 10000; |
| $testno = int($testno / 10000); |
| } |
| |
| loadtest("$srcdir/data/test$testno"); |
| |
| my @data = getpart("reply", "data$testpart"); |
| if((!@data) && ($testpart ne "")) { |
| @data = getpart("reply", "data"); |
| } |
| |
| return @data; |
| } |
| |
| sub sockfilt { |
| my $l; |
| foreach $l (@_) { |
| printf SFWRITE "DATA\n%04x\n", length($l); |
| print SFWRITE $l; |
| } |
| } |
| |
| sub sockfiltsecondary { |
| my $l; |
| foreach $l (@_) { |
| printf DWRITE "DATA\n%04x\n", length($l); |
| print DWRITE $l; |
| } |
| } |
| |
| #********************************************************************** |
| # Send data to the client on the control stream, which happens to be plain |
| # stdout. |
| # |
| sub sendcontrol { |
| if(!$ctrldelay) { |
| # spit it all out at once |
| sockfilt @_; |
| } |
| else { |
| my $a = join("", @_); |
| my @a = split("", $a); |
| |
| for(@a) { |
| sockfilt $_; |
| portable_sleep(0.01); |
| } |
| } |
| my $log; |
| foreach $log (@_) { |
| my $l = $log; |
| $l =~ s/\r/[CR]/g; |
| $l =~ s/\n/[LF]/g; |
| logmsg "> \"$l\"\n"; |
| } |
| } |
| |
| #********************************************************************** |
| # Send data to the FTP client on the data stream when data connection |
| # is actually established. Given that this sub should only be called |
| # when a data connection is supposed to be established, calling this |
| # without a data connection is an indication of weak logic somewhere. |
| # |
| sub senddata { |
| my $l; |
| if($datasockf_conn eq 'no') { |
| logmsg "WARNING: Detected data sending attempt without DATA channel\n"; |
| foreach $l (@_) { |
| logmsg "WARNING: Data swallowed: $l\n" |
| } |
| return; |
| } |
| |
| foreach $l (@_) { |
| if(!$datadelay) { |
| # spit it all out at once |
| sockfiltsecondary $l; |
| } |
| else { |
| # pause between each byte |
| for (split(//,$l)) { |
| sockfiltsecondary $_; |
| portable_sleep(0.01); |
| } |
| } |
| } |
| } |
| |
| #********************************************************************** |
| # protocolsetup initializes the 'displaytext' and 'commandfunc' hashes |
| # for the given protocol. References to protocol command callbacks are |
| # stored in 'commandfunc' hash, and text which will be returned to the |
| # client before the command callback runs is stored in 'displaytext'. |
| # |
| sub protocolsetup { |
| my $proto = $_[0]; |
| |
| if($proto eq 'ftp') { |
| %commandfunc = ( |
| 'PORT' => \&PORT_ftp, |
| 'EPRT' => \&PORT_ftp, |
| 'LIST' => \&LIST_ftp, |
| 'NLST' => \&NLST_ftp, |
| 'PASV' => \&PASV_ftp, |
| 'CWD' => \&CWD_ftp, |
| 'PWD' => \&PWD_ftp, |
| 'EPSV' => \&PASV_ftp, |
| 'RETR' => \&RETR_ftp, |
| 'SIZE' => \&SIZE_ftp, |
| 'REST' => \&REST_ftp, |
| 'STOR' => \&STOR_ftp, |
| 'APPE' => \&STOR_ftp, # append looks like upload |
| 'MDTM' => \&MDTM_ftp, |
| ); |
| %displaytext = ( |
| 'USER' => '331 We are happy you popped in!', |
| 'PASS' => '230 Welcome you silly person', |
| 'PORT' => '200 You said PORT - I say FINE', |
| 'TYPE' => '200 I modify TYPE as you wanted', |
| 'LIST' => '150 here comes a directory', |
| 'NLST' => '150 here comes a directory', |
| 'CWD' => '250 CWD command successful.', |
| 'SYST' => '215 UNIX Type: L8', # just fake something |
| 'QUIT' => '221 bye bye baby', # just reply something |
| 'MKD' => '257 Created your requested directory', |
| 'REST' => '350 Yeah yeah we set it there for you', |
| 'DELE' => '200 OK OK OK whatever you say', |
| 'RNFR' => '350 Received your order. Please provide more', |
| 'RNTO' => '250 Ok, thanks. File renaming completed.', |
| 'NOOP' => '200 Yes, I\'m very good at doing nothing.', |
| 'PBSZ' => '500 PBSZ not implemented', |
| 'PROT' => '500 PROT not implemented', |
| 'welcome' => join("", |
| '220- _ _ ____ _ '."\r\n", |
| '220- ___| | | | _ \| | '."\r\n", |
| '220- / __| | | | |_) | | '."\r\n", |
| '220- | (__| |_| | _ {| |___ '."\r\n", |
| '220 \___|\___/|_| \_\_____|'."\r\n") |
| ); |
| } |
| elsif($proto eq 'pop3') { |
| %commandfunc = ( |
| 'APOP' => \&APOP_pop3, |
| 'AUTH' => \&AUTH_pop3, |
| 'CAPA' => \&CAPA_pop3, |
| 'DELE' => \&DELE_pop3, |
| 'LIST' => \&LIST_pop3, |
| 'NOOP' => \&NOOP_pop3, |
| 'PASS' => \&PASS_pop3, |
| 'QUIT' => \&QUIT_pop3, |
| 'RETR' => \&RETR_pop3, |
| 'RSET' => \&RSET_pop3, |
| 'STAT' => \&STAT_pop3, |
| 'TOP' => \&TOP_pop3, |
| 'UIDL' => \&UIDL_pop3, |
| 'USER' => \&USER_pop3, |
| ); |
| %displaytext = ( |
| 'welcome' => join("", |
| ' _ _ ____ _ '."\r\n", |
| ' ___| | | | _ \| | '."\r\n", |
| ' / __| | | | |_) | | '."\r\n", |
| ' | (__| |_| | _ {| |___ '."\r\n", |
| ' \___|\___/|_| \_\_____|'."\r\n", |
| '+OK curl POP3 server ready to serve '."\r\n") |
| ); |
| } |
| elsif($proto eq 'imap') { |
| %commandfunc = ( |
| 'APPEND' => \&APPEND_imap, |
| 'CAPABILITY' => \&CAPABILITY_imap, |
| 'CHECK' => \&CHECK_imap, |
| 'CLOSE' => \&CLOSE_imap, |
| 'COPY' => \©_imap, |
| 'CREATE' => \&CREATE_imap, |
| 'DELETE' => \&DELETE_imap, |
| 'EXAMINE' => \&EXAMINE_imap, |
| 'EXPUNGE' => \&EXPUNGE_imap, |
| 'FETCH' => \&FETCH_imap, |
| 'LIST' => \&LIST_imap, |
| 'LSUB' => \&LSUB_imap, |
| 'LOGIN' => \&LOGIN_imap, |
| 'LOGOUT' => \&LOGOUT_imap, |
| 'NOOP' => \&NOOP_imap, |
| 'RENAME' => \&RENAME_imap, |
| 'SEARCH' => \&SEARCH_imap, |
| 'SELECT' => \&SELECT_imap, |
| 'STATUS' => \&STATUS_imap, |
| 'STORE' => \&STORE_imap, |
| 'UID' => \&UID_imap, |
| ); |
| %displaytext = ( |
| 'welcome' => join("", |
| ' _ _ ____ _ '."\r\n", |
| ' ___| | | | _ \| | '."\r\n", |
| ' / __| | | | |_) | | '."\r\n", |
| ' | (__| |_| | _ {| |___ '."\r\n", |
| ' \___|\___/|_| \_\_____|'."\r\n", |
| '* OK curl IMAP server ready to serve'."\r\n") |
| ); |
| } |
| elsif($proto eq 'smtp') { |
| %commandfunc = ( |
| 'DATA' => \&DATA_smtp, |
| 'EHLO' => \&EHLO_smtp, |
| 'EXPN' => \&EXPN_smtp, |
| 'HELO' => \&HELO_smtp, |
| 'HELP' => \&HELP_smtp, |
| 'MAIL' => \&MAIL_smtp, |
| 'NOOP' => \&NOOP_smtp, |
| 'RSET' => \&RSET_smtp, |
| 'RCPT' => \&RCPT_smtp, |
| 'VRFY' => \&VRFY_smtp, |
| 'QUIT' => \&QUIT_smtp, |
| ); |
| %displaytext = ( |
| 'welcome' => join("", |
| '220- _ _ ____ _ '."\r\n", |
| '220- ___| | | | _ \| | '."\r\n", |
| '220- / __| | | | |_) | | '."\r\n", |
| '220- | (__| |_| | _ {| |___ '."\r\n", |
| '220 \___|\___/|_| \_\_____|'."\r\n") |
| ); |
| } |
| } |
| |
| sub close_dataconn { |
| my ($closed)=@_; # non-zero if already disconnected |
| |
| my $datapid = processexists($datasockf_pidfile); |
| |
| logmsg "=====> Closing $datasockf_mode DATA connection...\n"; |
| |
| if(!$closed) { |
| if($datapid > 0) { |
| logmsg "Server disconnects $datasockf_mode DATA connection\n"; |
| print DWRITE "DISC\n"; |
| my $i; |
| sysread DREAD, $i, 5; |
| logmsg "Server disconnected $datasockf_mode DATA connection\n"; |
| } |
| else { |
| logmsg "Server finds $datasockf_mode DATA connection already ". |
| "disconnected\n"; |
| } |
| } |
| else { |
| logmsg "Server knows $datasockf_mode DATA connection is already ". |
| "disconnected\n"; |
| } |
| |
| if($datapid > 0) { |
| logmsg "DATA sockfilt for $datasockf_mode data channel quits ". |
| "(pid $datapid)\n"; |
| print DWRITE "QUIT\n"; |
| pidwait($datapid, 0); |
| unlink($datasockf_pidfile) if(-f $datasockf_pidfile); |
| logmsg "DATA sockfilt for $datasockf_mode data channel quit ". |
| "(pid $datapid)\n"; |
| } |
| else { |
| logmsg "DATA sockfilt for $datasockf_mode data channel already ". |
| "dead\n"; |
| } |
| |
| logmsg "=====> Closed $datasockf_mode DATA connection\n"; |
| |
| datasockf_state('STOPPED'); |
| } |
| |
| ################ |
| ################ SMTP commands |
| ################ |
| |
| # The type of server (SMTP or ESMTP) |
| my $smtp_type; |
| |
| # The client (which normally contains the test number) |
| my $smtp_client; |
| |
| sub EHLO_smtp { |
| my ($client) = @_; |
| my @data; |
| |
| # TODO: Get the IP address of the client connection to use in the |
| # EHLO response when the client doesn't specify one but for now use |
| # 127.0.0.1 |
| if(!$client) { |
| $client = "[127.0.0.1]"; |
| } |
| |
| # Set the server type to ESMTP |
| $smtp_type = "ESMTP"; |
| |
| # Calculate the EHLO response |
| push @data, "$smtp_type pingpong test server Hello $client"; |
| |
| if((@capabilities) || (@auth_mechs)) { |
| my $mechs; |
| |
| for my $c (@capabilities) { |
| push @data, $c; |
| } |
| |
| for my $am (@auth_mechs) { |
| if(!$mechs) { |
| $mechs = "$am"; |
| } |
| else { |
| $mechs .= " $am"; |
| } |
| } |
| |
| if($mechs) { |
| push @data, "AUTH $mechs"; |
| } |
| } |
| |
| # Send the EHLO response |
| for(my $i = 0; $i < @data; $i++) { |
| my $d = $data[$i]; |
| |
| if($i < @data - 1) { |
| sendcontrol "250-$d\r\n"; |
| } |
| else { |
| sendcontrol "250 $d\r\n"; |
| } |
| } |
| |
| # Store the client (as it may contain the test number) |
| $smtp_client = $client; |
| |
| return 0; |
| } |
| |
| sub HELO_smtp { |
| my ($client) = @_; |
| |
| # TODO: Get the IP address of the client connection to use in the HELO |
| # response when the client doesn't specify one but for now use 127.0.0.1 |
| if(!$client) { |
| $client = "[127.0.0.1]"; |
| } |
| |
| # Set the server type to SMTP |
| $smtp_type = "SMTP"; |
| |
| # Send the HELO response |
| sendcontrol "250 $smtp_type pingpong test server Hello $client\r\n"; |
| |
| # Store the client (as it may contain the test number) |
| $smtp_client = $client; |
| |
| return 0; |
| } |
| |
| sub MAIL_smtp { |
| my ($args) = @_; |
| |
| logmsg "MAIL_smtp got $args\n"; |
| |
| if (!$args) { |
| sendcontrol "501 Unrecognized parameter\r\n"; |
| } |
| else { |
| my $from; |
| my $size; |
| my $smtputf8 = grep /^SMTPUTF8$/, @capabilities; |
| my @elements = split(/ /, $args); |
| |
| # Get the FROM and SIZE parameters |
| for my $e (@elements) { |
| if($e =~ /^FROM:(.*)$/) { |
| $from = $1; |
| } |
| elsif($e =~ /^SIZE=(\d+)$/) { |
| $size = $1; |
| } |
| } |
| |
| # Validate the from address (only <> and a valid email address inside |
| # <> are allowed, such as <user@example.com>) |
| if (($from eq "<>") || |
| (!$smtputf8 && $from =~ |
| /^<([a-zA-Z0-9._%+-]+)\@(([a-zA-Z0-9-]+)\.)+([a-zA-Z]{2,4})>$/) || |
| ($smtputf8 && $from =~ |
| /^<([a-zA-Z0-9\x{80}-\x{ff}._%+-]+)\@(([a-zA-Z0-9\x{80}-\x{ff}-]+)\.)+([a-zA-Z]{2,4})>$/)) { |
| my @found; |
| my $valid = 1; |
| |
| # Check the capabilities for SIZE and if the specified size is |
| # greater than the message size then reject it |
| if (@found = grep /^SIZE (\d+)$/, @capabilities) { |
| if ($found[0] =~ /^SIZE (\d+)$/) { |
| if ($size > $1) { |
| $valid = 0; |
| } |
| } |
| } |
| |
| if(!$valid) { |
| sendcontrol "552 Message size too large\r\n"; |
| } |
| else { |
| sendcontrol "250 Sender OK\r\n"; |
| } |
| } |
| else { |
| sendcontrol "501 Invalid address\r\n"; |
| } |
| } |
| |
| return 0; |
| } |
| |
| sub RCPT_smtp { |
| my ($args) = @_; |
| |
| logmsg "RCPT_smtp got $args\n"; |
| |
| # Get the TO parameter |
| if($args !~ /^TO:(.*)/) { |
| sendcontrol "501 Unrecognized parameter\r\n"; |
| } |
| else { |
| my $smtputf8 = grep /^SMTPUTF8$/, @capabilities; |
| my $to = $1; |
| |
| # Validate the to address (only a valid email address inside <> is |
| # allowed, such as <user@example.com>) |
| if ((!$smtputf8 && $to =~ |
| /^<([a-zA-Z0-9._%+-]+)\@(([a-zA-Z0-9-]+)\.)+([a-zA-Z]{2,4})>$/) || |
| ($smtputf8 && $to =~ |
| /^<([a-zA-Z0-9\x{80}-\x{ff}._%+-]+)\@(([a-zA-Z0-9\x{80}-\x{ff}-]+)\.)+([a-zA-Z]{2,4})>$/)) { |
| sendcontrol "250 Recipient OK\r\n"; |
| } |
| else { |
| sendcontrol "501 Invalid address\r\n"; |
| } |
| } |
| |
| return 0; |
| } |
| |
| sub DATA_smtp { |
| my ($args) = @_; |
| |
| if ($args) { |
| sendcontrol "501 Unrecognized parameter\r\n"; |
| } |
| elsif ($smtp_client !~ /^(\d*)$/) { |
| sendcontrol "501 Invalid arguments\r\n"; |
| } |
| else { |
| sendcontrol "354 Show me the mail\r\n"; |
| |
| my $testno = $smtp_client; |
| my $filename = "log/upload.$testno"; |
| |
| logmsg "Store test number $testno in $filename\n"; |
| |
| open(FILE, ">$filename") || |
| return 0; # failed to open output |
| |
| my $line; |
| my $ulsize=0; |
| my $disc=0; |
| my $raw; |
| while (5 == (sysread \*SFREAD, $line, 5)) { |
| if($line eq "DATA\n") { |
| my $i; |
| my $eob; |
| sysread \*SFREAD, $i, 5; |
| |
| my $size = 0; |
| if($i =~ /^([0-9a-fA-F]{4})\n/) { |
| $size = hex($1); |
| } |
| |
| read_mainsockf(\$line, $size); |
| |
| $ulsize += $size; |
| print FILE $line if(!$nosave); |
| |
| $raw .= $line; |
| if($raw =~ /(?:^|\x0d\x0a)\x2e\x0d\x0a/) { |
| # end of data marker! |
| $eob = 1; |
| } |
| |
| logmsg "> Appending $size bytes to file\n"; |
| |
| if($eob) { |
| logmsg "Found SMTP EOB marker\n"; |
| last; |
| } |
| } |
| elsif($line eq "DISC\n") { |
| # disconnect! |
| $disc=1; |
| last; |
| } |
| else { |
| logmsg "No support for: $line"; |
| last; |
| } |
| } |
| |
| if($nosave) { |
| print FILE "$ulsize bytes would've been stored here\n"; |
| } |
| |
| close(FILE); |
| |
| logmsg "received $ulsize bytes upload\n"; |
| |
| sendcontrol "250 OK, data received!\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub NOOP_smtp { |
| my ($args) = @_; |
| |
| if($args) { |
| sendcontrol "501 Unrecognized parameter\r\n"; |
| } |
| else { |
| sendcontrol "250 OK\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub RSET_smtp { |
| my ($args) = @_; |
| |
| if($args) { |
| sendcontrol "501 Unrecognized parameter\r\n"; |
| } |
| else { |
| sendcontrol "250 Resetting\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub HELP_smtp { |
| my ($args) = @_; |
| |
| # One argument is optional |
| if($args) { |
| logmsg "HELP_smtp got $args\n"; |
| } |
| |
| if($smtp_client eq "verifiedserver") { |
| # This is the secret command that verifies that this actually is |
| # the curl test server |
| sendcontrol "214 WE ROOLZ: $$\r\n"; |
| |
| if($verbose) { |
| print STDERR "FTPD: We returned proof we are the test server\n"; |
| } |
| |
| logmsg "return proof we are we\n"; |
| } |
| else { |
| sendcontrol "214-This server supports the following commands:\r\n"; |
| |
| if(@auth_mechs) { |
| sendcontrol "214 HELO EHLO RCPT DATA RSET MAIL VRFY EXPN QUIT HELP AUTH\r\n"; |
| } |
| else { |
| sendcontrol "214 HELO EHLO RCPT DATA RSET MAIL VRFY EXPN QUIT HELP\r\n"; |
| } |
| } |
| |
| return 0; |
| } |
| |
| sub VRFY_smtp { |
| my ($args) = @_; |
| my ($username, $address) = split(/ /, $args, 2); |
| |
| logmsg "VRFY_smtp got $args\n"; |
| |
| if($username eq "") { |
| sendcontrol "501 Unrecognized parameter\r\n"; |
| } |
| else { |
| my $smtputf8 = grep /^SMTPUTF8$/, @capabilities; |
| |
| # Validate the username (only a valid local or external username is |
| # allowed, such as user or user@example.com) |
| if ((!$smtputf8 && $username =~ |
| /^([a-zA-Z0-9._%+-]+)(\@(([a-zA-Z0-9-]+)\.)+([a-zA-Z]{2,4}))?$/) || |
| ($smtputf8 && $username =~ |
| /^([a-zA-Z0-9\x{80}-\x{ff}._%+-]+)(\@(([a-zA-Z0-9\x{80}-\x{ff}-]+)\.)+([a-zA-Z]{2,4}))?$/)) { |
| |
| my @data = getreplydata($smtp_client); |
| |
| if(!@data) { |
| if ($username !~ |
| /^([a-zA-Z0-9._%+-]+)\@(([a-zA-Z0-9-]+)\.)+([a-zA-Z]{2,4})$/) { |
| push @data, "250 <$username\@example.com>\r\n" |
| } |
| else { |
| push @data, "250 <$username>\r\n" |
| } |
| } |
| |
| for my $d (@data) { |
| sendcontrol $d; |
| } |
| } |
| else { |
| sendcontrol "501 Invalid address\r\n"; |
| } |
| } |
| |
| return 0; |
| } |
| |
| sub EXPN_smtp { |
| my ($list_name) = @_; |
| |
| logmsg "EXPN_smtp got $list_name\n"; |
| |
| if(!$list_name) { |
| sendcontrol "501 Unrecognized parameter\r\n"; |
| } |
| else { |
| my @data = getreplydata($smtp_client); |
| |
| for my $d (@data) { |
| sendcontrol $d; |
| } |
| } |
| |
| return 0; |
| } |
| |
| sub QUIT_smtp { |
| sendcontrol "221 curl $smtp_type server signing off\r\n"; |
| |
| return 0; |
| } |
| |
| # What was deleted by IMAP STORE / POP3 DELE commands |
| my @deleted; |
| |
| ################ |
| ################ IMAP commands |
| ################ |
| |
| # global to allow the command functions to read it |
| my $cmdid; |
| |
| # what was picked by SELECT |
| my $selected; |
| |
| # Any IMAP parameter can come in escaped and in double quotes. |
| # This function is dumb (so far) and just removes the quotes if present. |
| sub fix_imap_params { |
| foreach (@_) { |
| $_ = $1 if /^"(.*)"$/; |
| } |
| } |
| |
| sub CAPABILITY_imap { |
| if((!@capabilities) && (!@auth_mechs)) { |
| sendcontrol "$cmdid BAD Command\r\n"; |
| } |
| else { |
| my $data; |
| |
| # Calculate the CAPABILITY response |
| $data = "* CAPABILITY IMAP4"; |
| |
| for my $c (@capabilities) { |
| $data .= " $c"; |
| } |
| |
| for my $am (@auth_mechs) { |
| $data .= " AUTH=$am"; |
| } |
| |
| $data .= " pingpong test server\r\n"; |
| |
| # Send the CAPABILITY response |
| sendcontrol $data; |
| sendcontrol "$cmdid OK CAPABILITY completed\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub LOGIN_imap { |
| my ($args) = @_; |
| my ($user, $password) = split(/ /, $args, 2); |
| fix_imap_params($user, $password); |
| |
| logmsg "LOGIN_imap got $args\n"; |
| |
| if ($user eq "") { |
| sendcontrol "$cmdid BAD Command Argument\r\n"; |
| } |
| else { |
| sendcontrol "$cmdid OK LOGIN completed\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub SELECT_imap { |
| my ($mailbox) = @_; |
| fix_imap_params($mailbox); |
| |
| logmsg "SELECT_imap got test $mailbox\n"; |
| |
| if($mailbox eq "") { |
| sendcontrol "$cmdid BAD Command Argument\r\n"; |
| } |
| else { |
| # Example from RFC 3501, 6.3.1. SELECT Command |
| sendcontrol "* 172 EXISTS\r\n"; |
| sendcontrol "* 1 RECENT\r\n"; |
| sendcontrol "* OK [UNSEEN 12] Message 12 is first unseen\r\n"; |
| sendcontrol "* OK [UIDVALIDITY 3857529045] UIDs valid\r\n"; |
| sendcontrol "* OK [UIDNEXT 4392] Predicted next UID\r\n"; |
| sendcontrol "* FLAGS (\\Answered \\Flagged \\Deleted \\Seen \\Draft)\r\n"; |
| sendcontrol "* OK [PERMANENTFLAGS (\\Deleted \\Seen \\*)] Limited\r\n"; |
| sendcontrol "$cmdid OK [READ-WRITE] SELECT completed\r\n"; |
| |
| $selected = $mailbox; |
| } |
| |
| return 0; |
| } |
| |
| sub FETCH_imap { |
| my ($args) = @_; |
| my ($uid, $how) = split(/ /, $args, 2); |
| fix_imap_params($uid, $how); |
| |
| logmsg "FETCH_imap got $args\n"; |
| |
| if ($selected eq "") { |
| sendcontrol "$cmdid BAD Command received in Invalid state\r\n"; |
| } |
| else { |
| my @data; |
| my $size; |
| |
| if($selected eq "verifiedserver") { |
| # this is the secret command that verifies that this actually is |
| # the curl test server |
| my $response = "WE ROOLZ: $$\r\n"; |
| if($verbose) { |
| print STDERR "FTPD: We returned proof we are the test server\n"; |
| } |
| $data[0] = $response; |
| logmsg "return proof we are we\n"; |
| } |
| else { |
| # send mail content |
| logmsg "retrieve a mail\n"; |
| |
| @data = getreplydata($selected); |
| } |
| |
| for (@data) { |
| $size += length($_); |
| } |
| |
| sendcontrol "* $uid FETCH ($how {$size}\r\n"; |
| |
| for my $d (@data) { |
| sendcontrol $d; |
| } |
| |
| sendcontrol ")\r\n"; |
| sendcontrol "$cmdid OK FETCH completed\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub APPEND_imap { |
| my ($args) = @_; |
| |
| logmsg "APPEND_imap got $args\r\n"; |
| |
| $args =~ /^([^ ]+) [^{]*\{(\d+)\}$/; |
| my ($mailbox, $size) = ($1, $2); |
| fix_imap_params($mailbox); |
| |
| if($mailbox eq "") { |
| sendcontrol "$cmdid BAD Command Argument\r\n"; |
| } |
| else { |
| sendcontrol "+ Ready for literal data\r\n"; |
| |
| my $testno = $mailbox; |
| my $filename = "log/upload.$testno"; |
| |
| logmsg "Store test number $testno in $filename\n"; |
| |
| open(FILE, ">$filename") || |
| return 0; # failed to open output |
| |
| my $received = 0; |
| my $line; |
| while(5 == (sysread \*SFREAD, $line, 5)) { |
| if($line eq "DATA\n") { |
| sysread \*SFREAD, $line, 5; |
| |
| my $chunksize = 0; |
| if($line =~ /^([0-9a-fA-F]{4})\n/) { |
| $chunksize = hex($1); |
| } |
| |
| read_mainsockf(\$line, $chunksize); |
| |
| my $left = $size - $received; |
| my $datasize = ($left > $chunksize) ? $chunksize : $left; |
| |
| if($datasize > 0) { |
| logmsg "> Appending $datasize bytes to file\n"; |
| print FILE substr($line, 0, $datasize) if(!$nosave); |
| $line = substr($line, $datasize); |
| |
| $received += $datasize; |
| if($received == $size) { |
| logmsg "Received all data, waiting for final CRLF.\n"; |
| } |
| } |
| |
| if($received == $size && $line eq "\r\n") { |
| last; |
| } |
| } |
| elsif($line eq "DISC\n") { |
| logmsg "Unexpected disconnect!\n"; |
| last; |
| } |
| else { |
| logmsg "No support for: $line"; |
| last; |
| } |
| } |
| |
| if($nosave) { |
| print FILE "$size bytes would've been stored here\n"; |
| } |
| |
| close(FILE); |
| |
| logmsg "received $size bytes upload\n"; |
| |
| sendcontrol "$cmdid OK APPEND completed\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub STORE_imap { |
| my ($args) = @_; |
| my ($uid, $what, $value) = split(/ /, $args, 3); |
| fix_imap_params($uid); |
| |
| logmsg "STORE_imap got $args\n"; |
| |
| if ($selected eq "") { |
| sendcontrol "$cmdid BAD Command received in Invalid state\r\n"; |
| } |
| elsif (($uid eq "") || ($what ne "+Flags") || ($value eq "")) { |
| sendcontrol "$cmdid BAD Command Argument\r\n"; |
| } |
| else { |
| if($value eq "\\Deleted") { |
| push(@deleted, $uid); |
| } |
| |
| sendcontrol "* $uid FETCH (FLAGS (\\Seen $value))\r\n"; |
| sendcontrol "$cmdid OK STORE completed\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub LIST_imap { |
| my ($args) = @_; |
| my ($reference, $mailbox) = split(/ /, $args, 2); |
| fix_imap_params($reference, $mailbox); |
| |
| logmsg "LIST_imap got $args\n"; |
| |
| if ($reference eq "") { |
| sendcontrol "$cmdid BAD Command Argument\r\n"; |
| } |
| elsif ($reference eq "verifiedserver") { |
| # this is the secret command that verifies that this actually is |
| # the curl test server |
| sendcontrol "* LIST () \"/\" \"WE ROOLZ: $$\"\r\n"; |
| sendcontrol "$cmdid OK LIST Completed\r\n"; |
| |
| if($verbose) { |
| print STDERR "FTPD: We returned proof we are the test server\n"; |
| } |
| |
| logmsg "return proof we are we\n"; |
| } |
| else { |
| my @data = getreplydata($reference); |
| |
| for my $d (@data) { |
| sendcontrol $d; |
| } |
| |
| sendcontrol "$cmdid OK LIST Completed\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub LSUB_imap { |
| my ($args) = @_; |
| my ($reference, $mailbox) = split(/ /, $args, 2); |
| fix_imap_params($reference, $mailbox); |
| |
| logmsg "LSUB_imap got $args\n"; |
| |
| if ($reference eq "") { |
| sendcontrol "$cmdid BAD Command Argument\r\n"; |
| } |
| else { |
| my @data = getreplydata($reference); |
| |
| for my $d (@data) { |
| sendcontrol $d; |
| } |
| |
| sendcontrol "$cmdid OK LSUB Completed\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub EXAMINE_imap { |
| my ($mailbox) = @_; |
| fix_imap_params($mailbox); |
| |
| logmsg "EXAMINE_imap got $mailbox\n"; |
| |
| if ($mailbox eq "") { |
| sendcontrol "$cmdid BAD Command Argument\r\n"; |
| } |
| else { |
| my @data = getreplydata($mailbox); |
| |
| for my $d (@data) { |
| sendcontrol $d; |
| } |
| |
| sendcontrol "$cmdid OK [READ-ONLY] EXAMINE completed\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub STATUS_imap { |
| my ($args) = @_; |
| my ($mailbox, $what) = split(/ /, $args, 2); |
| fix_imap_params($mailbox); |
| |
| logmsg "STATUS_imap got $args\n"; |
| |
| if ($mailbox eq "") { |
| sendcontrol "$cmdid BAD Command Argument\r\n"; |
| } |
| else { |
| my @data = getreplydata($mailbox); |
| |
| for my $d (@data) { |
| sendcontrol $d; |
| } |
| |
| sendcontrol "$cmdid OK STATUS completed\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub SEARCH_imap { |
| my ($what) = @_; |
| fix_imap_params($what); |
| |
| logmsg "SEARCH_imap got $what\n"; |
| |
| if ($selected eq "") { |
| sendcontrol "$cmdid BAD Command received in Invalid state\r\n"; |
| } |
| elsif ($what eq "") { |
| sendcontrol "$cmdid BAD Command Argument\r\n"; |
| } |
| else { |
| my @data = getreplydata($selected); |
| |
| for my $d (@data) { |
| sendcontrol $d; |
| } |
| |
| sendcontrol "$cmdid OK SEARCH completed\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub CREATE_imap { |
| my ($args) = @_; |
| fix_imap_params($args); |
| |
| logmsg "CREATE_imap got $args\n"; |
| |
| if ($args eq "") { |
| sendcontrol "$cmdid BAD Command Argument\r\n"; |
| } |
| else { |
| sendcontrol "$cmdid OK CREATE completed\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub DELETE_imap { |
| my ($args) = @_; |
| fix_imap_params($args); |
| |
| logmsg "DELETE_imap got $args\n"; |
| |
| if ($args eq "") { |
| sendcontrol "$cmdid BAD Command Argument\r\n"; |
| } |
| else { |
| sendcontrol "$cmdid OK DELETE completed\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub RENAME_imap { |
| my ($args) = @_; |
| my ($from_mailbox, $to_mailbox) = split(/ /, $args, 2); |
| fix_imap_params($from_mailbox, $to_mailbox); |
| |
| logmsg "RENAME_imap got $args\n"; |
| |
| if (($from_mailbox eq "") || ($to_mailbox eq "")) { |
| sendcontrol "$cmdid BAD Command Argument\r\n"; |
| } |
| else { |
| sendcontrol "$cmdid OK RENAME completed\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub CHECK_imap { |
| if ($selected eq "") { |
| sendcontrol "$cmdid BAD Command received in Invalid state\r\n"; |
| } |
| else { |
| sendcontrol "$cmdid OK CHECK completed\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub CLOSE_imap { |
| if ($selected eq "") { |
| sendcontrol "$cmdid BAD Command received in Invalid state\r\n"; |
| } |
| elsif (!@deleted) { |
| sendcontrol "$cmdid BAD Command Argument\r\n"; |
| } |
| else { |
| sendcontrol "$cmdid OK CLOSE completed\r\n"; |
| |
| @deleted = (); |
| } |
| |
| return 0; |
| } |
| |
| sub EXPUNGE_imap { |
| if ($selected eq "") { |
| sendcontrol "$cmdid BAD Command received in Invalid state\r\n"; |
| } |
| else { |
| if (!@deleted) { |
| # Report the number of existing messages as per the SELECT |
| # command |
| sendcontrol "* 172 EXISTS\r\n"; |
| } |
| else { |
| # Report the message UIDs being deleted |
| for my $d (@deleted) { |
| sendcontrol "* $d EXPUNGE\r\n"; |
| } |
| |
| @deleted = (); |
| } |
| |
| sendcontrol "$cmdid OK EXPUNGE completed\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub COPY_imap { |
| my ($args) = @_; |
| my ($uid, $mailbox) = split(/ /, $args, 2); |
| fix_imap_params($uid, $mailbox); |
| |
| logmsg "COPY_imap got $args\n"; |
| |
| if (($uid eq "") || ($mailbox eq "")) { |
| sendcontrol "$cmdid BAD Command Argument\r\n"; |
| } |
| else { |
| sendcontrol "$cmdid OK COPY completed\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub UID_imap { |
| my ($args) = @_; |
| my ($command) = split(/ /, $args, 1); |
| fix_imap_params($command); |
| |
| logmsg "UID_imap got $args\n"; |
| |
| if ($selected eq "") { |
| sendcontrol "$cmdid BAD Command received in Invalid state\r\n"; |
| } |
| elsif (substr($command, 0, 5) eq "FETCH"){ |
| my $func = $commandfunc{"FETCH"}; |
| if($func) { |
| &$func($args, $command); |
| } |
| } |
| elsif (($command ne "COPY") && |
| ($command ne "STORE") && ($command ne "SEARCH")) { |
| sendcontrol "$cmdid BAD Command Argument\r\n"; |
| } |
| else { |
| my @data = getreplydata($selected); |
| |
| for my $d (@data) { |
| sendcontrol $d; |
| } |
| |
| sendcontrol "$cmdid OK $command completed\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub NOOP_imap { |
| my ($args) = @_; |
| my @data = ( |
| "* 22 EXPUNGE\r\n", |
| "* 23 EXISTS\r\n", |
| "* 3 RECENT\r\n", |
| "* 14 FETCH (FLAGS (\\Seen \\Deleted))\r\n", |
| ); |
| |
| if ($args) { |
| sendcontrol "$cmdid BAD Command Argument\r\n"; |
| } |
| else { |
| for my $d (@data) { |
| sendcontrol $d; |
| } |
| |
| sendcontrol "$cmdid OK NOOP completed\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub LOGOUT_imap { |
| sendcontrol "* BYE curl IMAP server signing off\r\n"; |
| sendcontrol "$cmdid OK LOGOUT completed\r\n"; |
| |
| return 0; |
| } |
| |
| ################ |
| ################ POP3 commands |
| ################ |
| |
| # Who is attempting to log in |
| my $username; |
| |
| sub CAPA_pop3 { |
| my @list = (); |
| my $mechs; |
| |
| # Calculate the capability list based on the specified capabilities |
| # (except APOP) and any authentication mechanisms |
| for my $c (@capabilities) { |
| push @list, "$c\r\n" unless $c eq "APOP"; |
| } |
| |
| for my $am (@auth_mechs) { |
| if(!$mechs) { |
| $mechs = "$am"; |
| } |
| else { |
| $mechs .= " $am"; |
| } |
| } |
| |
| if($mechs) { |
| push @list, "SASL $mechs\r\n"; |
| } |
| |
| if(!@list) { |
| sendcontrol "-ERR Unrecognized command\r\n"; |
| } |
| else { |
| my @data = (); |
| |
| # Calculate the CAPA response |
| push @data, "+OK List of capabilities follows\r\n"; |
| |
| for my $l (@list) { |
| push @data, "$l\r\n"; |
| } |
| |
| push @data, "IMPLEMENTATION POP3 pingpong test server\r\n"; |
| |
| # Send the CAPA response |
| for my $d (@data) { |
| sendcontrol $d; |
| } |
| |
| # End with the magic 3-byte end of listing marker |
| sendcontrol ".\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub APOP_pop3 { |
| my ($args) = @_; |
| my ($user, $secret) = split(/ /, $args, 2); |
| |
| if (!grep /^APOP$/, @capabilities) { |
| sendcontrol "-ERR Unrecognized command\r\n"; |
| } |
| elsif (($user eq "") || ($secret eq "")) { |
| sendcontrol "-ERR Protocol error\r\n"; |
| } |
| else { |
| my $digest = Digest::MD5::md5_hex($POP3_TIMESTAMP, $TEXT_PASSWORD); |
| |
| if ($secret ne $digest) { |
| sendcontrol "-ERR Login failure\r\n"; |
| } |
| else { |
| sendcontrol "+OK Login successful\r\n"; |
| } |
| } |
| |
| return 0; |
| } |
| |
| sub AUTH_pop3 { |
| if(!@auth_mechs) { |
| sendcontrol "-ERR Unrecognized command\r\n"; |
| } |
| else { |
| my @data = (); |
| |
| # Calculate the AUTH response |
| push @data, "+OK List of supported mechanisms follows\r\n"; |
| |
| for my $am (@auth_mechs) { |
| push @data, "$am\r\n"; |
| } |
| |
| # Send the AUTH response |
| for my $d (@data) { |
| sendcontrol $d; |
| } |
| |
| # End with the magic 3-byte end of listing marker |
| sendcontrol ".\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub USER_pop3 { |
| my ($user) = @_; |
| |
| logmsg "USER_pop3 got $user\n"; |
| |
| if (!$user) { |
| sendcontrol "-ERR Protocol error\r\n"; |
| } |
| else { |
| $username = $user; |
| |
| sendcontrol "+OK\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub PASS_pop3 { |
| my ($password) = @_; |
| |
| logmsg "PASS_pop3 got $password\n"; |
| |
| sendcontrol "+OK Login successful\r\n"; |
| |
| return 0; |
| } |
| |
| sub RETR_pop3 { |
| my ($msgid) = @_; |
| my @data; |
| |
| if($msgid =~ /^verifiedserver$/) { |
| # this is the secret command that verifies that this actually is |
| # the curl test server |
| my $response = "WE ROOLZ: $$\r\n"; |
| if($verbose) { |
| print STDERR "FTPD: We returned proof we are the test server\n"; |
| } |
| $data[0] = $response; |
| logmsg "return proof we are we\n"; |
| } |
| else { |
| # send mail content |
| logmsg "retrieve a mail\n"; |
| |
| @data = getreplydata($msgid); |
| } |
| |
| sendcontrol "+OK Mail transfer starts\r\n"; |
| |
| for my $d (@data) { |
| sendcontrol $d; |
| } |
| |
| # end with the magic 3-byte end of mail marker, assumes that the |
| # mail body ends with a CRLF! |
| sendcontrol ".\r\n"; |
| |
| return 0; |
| } |
| |
| sub LIST_pop3 { |
| # This is a built-in fake-message list |
| my @data = ( |
| "1 100\r\n", |
| "2 4294967400\r\n", # > 4 GB |
| "3 200\r\n", |
| ); |
| |
| logmsg "retrieve a message list\n"; |
| |
| sendcontrol "+OK Listing starts\r\n"; |
| |
| for my $d (@data) { |
| sendcontrol $d; |
| } |
| |
| # End with the magic 3-byte end of listing marker |
| sendcontrol ".\r\n"; |
| |
| return 0; |
| } |
| |
| sub DELE_pop3 { |
| my ($msgid) = @_; |
| |
| logmsg "DELE_pop3 got $msgid\n"; |
| |
| if (!$msgid) { |
| sendcontrol "-ERR Protocol error\r\n"; |
| } |
| else { |
| push (@deleted, $msgid); |
| |
| sendcontrol "+OK\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub STAT_pop3 { |
| my ($args) = @_; |
| |
| if ($args) { |
| sendcontrol "-ERR Protocol error\r\n"; |
| } |
| else { |
| # Send statistics for the built-in fake message list as |
| # detailed in the LIST_pop3 function above |
| sendcontrol "+OK 3 4294967800\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub NOOP_pop3 { |
| my ($args) = @_; |
| |
| if ($args) { |
| sendcontrol "-ERR Protocol error\r\n"; |
| } |
| else { |
| sendcontrol "+OK\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub UIDL_pop3 { |
| # This is a built-in fake-message UID list |
| my @data = ( |
| "1 1\r\n", |
| "2 2\r\n", |
| "3 4\r\n", # Note that UID 3 is a simulated "deleted" message |
| ); |
| |
| if (!grep /^UIDL$/, @capabilities) { |
| sendcontrol "-ERR Unrecognized command\r\n"; |
| } |
| else { |
| logmsg "retrieve a message UID list\n"; |
| |
| sendcontrol "+OK Listing starts\r\n"; |
| |
| for my $d (@data) { |
| sendcontrol $d; |
| } |
| |
| # End with the magic 3-byte end of listing marker |
| sendcontrol ".\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub TOP_pop3 { |
| my ($args) = @_; |
| my ($msgid, $lines) = split(/ /, $args, 2); |
| |
| logmsg "TOP_pop3 got $args\n"; |
| |
| if (!grep /^TOP$/, @capabilities) { |
| sendcontrol "-ERR Unrecognized command\r\n"; |
| } |
| elsif (($msgid eq "") || ($lines eq "")) { |
| sendcontrol "-ERR Protocol error\r\n"; |
| } |
| else { |
| if ($lines == "0") { |
| logmsg "retrieve header of mail\n"; |
| } |
| else { |
| logmsg "retrieve top $lines lines of mail\n"; |
| } |
| |
| my @data = getreplydata($msgid); |
| |
| sendcontrol "+OK Mail transfer starts\r\n"; |
| |
| # Send mail content |
| for my $d (@data) { |
| sendcontrol $d; |
| } |
| |
| # End with the magic 3-byte end of mail marker, assumes that the |
| # mail body ends with a CRLF! |
| sendcontrol ".\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub RSET_pop3 { |
| my ($args) = @_; |
| |
| if ($args) { |
| sendcontrol "-ERR Protocol error\r\n"; |
| } |
| else { |
| if (@deleted) { |
| logmsg "resetting @deleted message(s)\n"; |
| |
| @deleted = (); |
| } |
| |
| sendcontrol "+OK\r\n"; |
| } |
| |
| return 0; |
| } |
| |
| sub QUIT_pop3 { |
| if(@deleted) { |
| logmsg "deleting @deleted message(s)\n"; |
| |
| @deleted = (); |
| } |
| |
| sendcontrol "+OK curl POP3 server signing off\r\n"; |
| |
| return 0; |
| } |
| |
| ################ |
| ################ FTP commands |
| ################ |
| my $rest=0; |
| sub REST_ftp { |
| $rest = $_[0]; |
| logmsg "Set REST position to $rest\n" |
| } |
| |
| sub switch_directory_goto { |
| my $target_dir = $_; |
| |
| if(!$ftptargetdir) { |
| $ftptargetdir = "/"; |
| } |
| |
| if($target_dir eq "") { |
| $ftptargetdir = "/"; |
| } |
| elsif($target_dir eq "..") { |
| if($ftptargetdir eq "/") { |
| $ftptargetdir = "/"; |
| } |
| else { |
| $ftptargetdir =~ s/[[:alnum:]]+\/$//; |
| } |
| } |
| else { |
| $ftptargetdir .= $target_dir . "/"; |
| } |
| } |
| |
| sub switch_directory { |
| my $target_dir = $_[0]; |
| |
| if($target_dir =~ /^test-(\d+)/) { |
| $cwd_testno = $1; |
| } |
| elsif($target_dir eq "/") { |
| $ftptargetdir = "/"; |
| } |
| else { |
| my @dirs = split("/", $target_dir); |
| for(@dirs) { |
| switch_directory_goto($_); |
| } |
| } |
| } |
| |
| sub CWD_ftp { |
| my ($folder, $fullcommand) = $_[0]; |
| switch_directory($folder); |
| if($ftptargetdir =~ /^\/fully_simulated/) { |
| $ftplistparserstate = "enabled"; |
| } |
| else { |
| undef $ftplistparserstate; |
| } |
| } |
| |
| sub PWD_ftp { |
| my $mydir; |
| $mydir = $ftptargetdir ? $ftptargetdir : "/"; |
| |
| if($mydir ne "/") { |
| $mydir =~ s/\/$//; |
| } |
| sendcontrol "257 \"$mydir\" is current directory\r\n"; |
| } |
| |
| sub LIST_ftp { |
| # print "150 ASCII data connection for /bin/ls (193.15.23.1,59196) (0 bytes)\r\n"; |
| |
| # this is a built-in fake-dir ;-) |
| my @ftpdir=("total 20\r\n", |
| "drwxr-xr-x 8 98 98 512 Oct 22 13:06 .\r\n", |
| "drwxr-xr-x 8 98 98 512 Oct 22 13:06 ..\r\n", |
| "drwxr-xr-x 2 98 98 512 May 2 1996 .NeXT\r\n", |
| "-r--r--r-- 1 0 1 35 Jul 16 1996 README\r\n", |
| "lrwxrwxrwx 1 0 1 7 Dec 9 1999 bin -> usr/bin\r\n", |
| "dr-xr-xr-x 2 0 1 512 Oct 1 1997 dev\r\n", |
| "drwxrwxrwx 2 98 98 512 May 29 16:04 download.html\r\n", |
| "dr-xr-xr-x 2 0 1 512 Nov 30 1995 etc\r\n", |
| "drwxrwxrwx 2 98 1 512 Oct 30 14:33 pub\r\n", |
| "dr-xr-xr-x 5 0 1 512 Oct 1 1997 usr\r\n"); |
| |
| if($datasockf_conn eq 'no') { |
| if($nodataconn425) { |
| sendcontrol "150 Opening data connection\r\n"; |
| sendcontrol "425 Can't open data connection\r\n"; |
| } |
| elsif($nodataconn421) { |
| sendcontrol "150 Opening data connection\r\n"; |
| sendcontrol "421 Connection timed out\r\n"; |
| } |
| elsif($nodataconn150) { |
| sendcontrol "150 Opening data connection\r\n"; |
| # client shall timeout |
| } |
| else { |
| # client shall timeout |
| } |
| return 0; |
| } |
| |
| if($ftplistparserstate) { |
| @ftpdir = ftp_contentlist($ftptargetdir); |
| } |
| |
| logmsg "pass LIST data on data connection\n"; |
| |
| if($cwd_testno) { |
| loadtest("$srcdir/data/test$cwd_testno"); |
| |
| my @data = getpart("reply", "data"); |
| for(@data) { |
| my $send = $_; |
| # convert all \n to \r\n for ASCII transfer |
| $send =~ s/\r\n/\n/g; |
| $send =~ s/\n/\r\n/g; |
| logmsg "send $send as data\n"; |
| senddata $send; |
| } |
| $cwd_testno = 0; # forget it again |
| } |
| else { |
| # old hard-coded style |
| for(@ftpdir) { |
| senddata $_; |
| } |
| } |
| close_dataconn(0); |
| sendcontrol "226 ASCII transfer complete\r\n"; |
| return 0; |
| } |
| |
| sub NLST_ftp { |
| my @ftpdir=("file", "with space", "fake", "..", " ..", "funny", "README"); |
| |
| if($datasockf_conn eq 'no') { |
| if($nodataconn425) { |
| sendcontrol "150 Opening data connection\r\n"; |
| sendcontrol "425 Can't open data connection\r\n"; |
| } |
| elsif($nodataconn421) { |
| sendcontrol "150 Opening data connection\r\n"; |
| sendcontrol "421 Connection timed out\r\n"; |
| } |
| elsif($nodataconn150) { |
| sendcontrol "150 Opening data connection\r\n"; |
| # client shall timeout |
| } |
| else { |
| # client shall timeout |
| } |
| return 0; |
| } |
| |
| logmsg "pass NLST data on data connection\n"; |
| for(@ftpdir) { |
| senddata "$_\r\n"; |
| } |
| close_dataconn(0); |
| sendcontrol "226 ASCII transfer complete\r\n"; |
| return 0; |
| } |
| |
| sub MDTM_ftp { |
| my $testno = $_[0]; |
| my $testpart = ""; |
| if ($testno > 10000) { |
| $testpart = $testno % 10000; |
| $testno = int($testno / 10000); |
| } |
| |
| loadtest("$srcdir/data/test$testno"); |
| |
| my @data = getpart("reply", "mdtm"); |
| |
| my $reply = $data[0]; |
| chomp $reply if($reply); |
| |
| if($reply && ($reply =~ /^[+-]?\d+$/) && ($reply < 0)) { |
| sendcontrol "550 $testno: no such file.\r\n"; |
| } |
| elsif($reply) { |
| sendcontrol "$reply\r\n"; |
| } |
| else { |
| sendcontrol "500 MDTM: no such command.\r\n"; |
| } |
| return 0; |
| } |
| |
| sub SIZE_ftp { |
| my $testno = $_[0]; |
| if($ftplistparserstate) { |
| my $size = wildcard_filesize($ftptargetdir, $testno); |
| if($size == -1) { |
| sendcontrol "550 $testno: No such file or directory.\r\n"; |
| } |
| else { |
| sendcontrol "213 $size\r\n"; |
| } |
| return 0; |
| } |
| |
| if($testno =~ /^verifiedserver$/) { |
| my $response = "WE ROOLZ: $$\r\n"; |
| my $size = length($response); |
| sendcontrol "213 $size\r\n"; |
| return 0; |
| } |
| |
| if($testno =~ /(\d+)\/?$/) { |
| $testno = $1; |
| } |
| else { |
| print STDERR "SIZE_ftp: invalid test number: $testno\n"; |
| return 1; |
| } |
| |
| my $testpart = ""; |
| if($testno > 10000) { |
| $testpart = $testno % 10000; |
| $testno = int($testno / 10000); |
| } |
| |
| loadtest("$srcdir/data/test$testno"); |
| |
| my @data = getpart("reply", "size"); |
| |
| my $size = $data[0]; |
| |
| if($size) { |
| if($size > -1) { |
| sendcontrol "213 $size\r\n"; |
| } |
| else { |
| sendcontrol "550 $testno: No such file or directory.\r\n"; |
| } |
| } |
| else { |
| $size=0; |
| @data = getpart("reply", "data$testpart"); |
| for(@data) { |
| $size += length($_); |
| } |
| if($size) { |
| sendcontrol "213 $size\r\n"; |
| } |
| else { |
| sendcontrol "550 $testno: No such file or directory.\r\n"; |
| } |
| } |
| return 0; |
| } |
| |
| sub RETR_ftp { |
| my ($testno) = @_; |
| |
| if($datasockf_conn eq 'no') { |
| if($nodataconn425) { |
| sendcontrol "150 Opening data connection\r\n"; |
| sendcontrol "425 Can't open data connection\r\n"; |
| } |
| elsif($nodataconn421) { |
| sendcontrol "150 Opening data connection\r\n"; |
| sendcontrol "421 Connection timed out\r\n"; |
| } |
| elsif($nodataconn150) { |
| sendcontrol "150 Opening data connection\r\n"; |
| # client shall timeout |
| } |
| else { |
| # client shall timeout |
| } |
| return 0; |
| } |
| |
| if($ftplistparserstate) { |
| my @content = wildcard_getfile($ftptargetdir, $testno); |
| if($content[0] == -1) { |
| #file not found |
| } |
| else { |
| my $size = length $content[1]; |
| sendcontrol "150 Binary data connection for $testno ($size bytes).\r\n", |
| senddata $content[1]; |
| close_dataconn(0); |
| sendcontrol "226 File transfer complete\r\n"; |
| } |
| return 0; |
| } |
| |
| if($testno =~ /^verifiedserver$/) { |
| # this is the secret command that verifies that this actually is |
| # the curl test server |
| my $response = "WE ROOLZ: $$\r\n"; |
| my $len = length($response); |
| sendcontrol "150 Binary junk ($len bytes).\r\n"; |
| senddata "WE ROOLZ: $$\r\n"; |
| close_dataconn(0); |
| sendcontrol "226 File transfer complete\r\n"; |
| if($verbose) { |
| print STDERR "FTPD: We returned proof we are the test server\n"; |
| } |
| return 0; |
| } |
| |
| $testno =~ s/^([^0-9]*)//; |
| my $testpart = ""; |
| if ($testno > 10000) { |
| $testpart = $testno % 10000; |
| $testno = int($testno / 10000); |
| } |
| |
| loadtest("$srcdir/data/test$testno"); |
| |
| my @data = getpart("reply", "data$testpart"); |
| |
| my $size=0; |
| for(@data) { |
| $size += length($_); |
| } |
| |
| my %hash = getpartattr("reply", "data$testpart"); |
| |
| if($size || $hash{'sendzero'}) { |
| |
| if($rest) { |
| # move read pointer forward |
| $size -= $rest; |
| logmsg "REST $rest was removed from size, makes $size left\n"; |
| $rest = 0; # reset REST offset again |
| } |
| if($retrweirdo) { |
| sendcontrol "150 Binary data connection for $testno () ($size bytes).\r\n", |
| "226 File transfer complete\r\n"; |
| |
| for(@data) { |
| my $send = $_; |
| senddata $send; |
| } |
| close_dataconn(0); |
| $retrweirdo=0; # switch off the weirdo again! |
| } |
| else { |
| my $sz = "($size bytes)"; |
| if($retrnosize) { |
| $sz = "size?"; |
| } |
| |
| sendcontrol "150 Binary data connection for $testno () $sz.\r\n"; |
| |
| for(@data) { |
| my $send = $_; |
| senddata $send; |
| } |
| close_dataconn(0); |
| sendcontrol "226 File transfer complete\r\n"; |
| } |
| } |
| else { |
| sendcontrol "550 $testno: No such file or directory.\r\n"; |
| } |
| return 0; |
| } |
| |
| sub STOR_ftp { |
| my $testno=$_[0]; |
| |
| my $filename = "log/upload.$testno"; |
| |
| if($datasockf_conn eq 'no') { |
| if($nodataconn425) { |
| sendcontrol "150 Opening data connection\r\n"; |
| sendcontrol "425 Can't open data connection\r\n"; |
| } |
| elsif($nodataconn421) { |
| sendcontrol "150 Opening data connection\r\n"; |
| sendcontrol "421 Connection timed out\r\n"; |
| } |
| elsif($nodataconn150) { |
| sendcontrol "150 Opening data connection\r\n"; |
| # client shall timeout |
| } |
| else { |
| # client shall timeout |
| } |
| return 0; |
| } |
| |
| logmsg "STOR test number $testno in $filename\n"; |
| |
| sendcontrol "125 Gimme gimme gimme!\r\n"; |
| |
| open(FILE, ">$filename") || |
| return 0; # failed to open output |
| |
| my $line; |
| my $ulsize=0; |
| my $disc=0; |
| while (5 == (sysread DREAD, $line, 5)) { |
| if($line eq "DATA\n") { |
| my $i; |
| sysread DREAD, $i, 5; |
| |
| my $size = 0; |
| if($i =~ /^([0-9a-fA-F]{4})\n/) { |
| $size = hex($1); |
| } |
| |
| read_datasockf(\$line, $size); |
| |
| #print STDERR " GOT: $size bytes\n"; |
| |
| $ulsize += $size; |
| print FILE $line if(!$nosave); |
| logmsg "> Appending $size bytes to file\n"; |
| } |
| elsif($line eq "DISC\n") { |
| # disconnect! |
| $disc=1; |
| last; |
| } |
| else { |
| logmsg "No support for: $line"; |
| last; |
| } |
| } |
| if($nosave) { |
| print FILE "$ulsize bytes would've been stored here\n"; |
| } |
| close(FILE); |
| close_dataconn($disc); |
| logmsg "received $ulsize bytes upload\n"; |
| sendcontrol "226 File transfer complete\r\n"; |
| return 0; |
| } |
| |
| sub PASV_ftp { |
| my ($arg, $cmd)=@_; |
| my $pasvport; |
| my $bindonly = ($nodataconn) ? '--bindonly' : ''; |
| |
| # kill previous data connection sockfilt when alive |
| if($datasockf_runs eq 'yes') { |
| killsockfilters($proto, $ipvnum, $idnum, $verbose, 'data'); |
| logmsg "DATA sockfilt for $datasockf_mode data channel killed\n"; |
| } |
| datasockf_state('STOPPED'); |
| |
| logmsg "====> Passive DATA channel requested by client\n"; |
| |
| logmsg "DATA sockfilt for passive data channel starting...\n"; |
| |
| # We fire up a new sockfilt to do the data transfer for us. |
| my $datasockfcmd = "./server/sockfilt".exe_ext('SRV')." " . |
| "--ipv$ipvnum $bindonly --port 0 " . |
| "--pidfile \"$datasockf_pidfile\" " . |
| "--logfile \"$datasockf_logfile\""; |
| $slavepid = open2(\*DREAD, \*DWRITE, $datasockfcmd); |
| |
| if($nodataconn) { |
| datasockf_state('PASSIVE_NODATACONN'); |
| } |
| else { |
| datasockf_state('PASSIVE'); |
| } |
| |
| print STDERR "$datasockfcmd\n" if($verbose); |
| |
| print DWRITE "PING\n"; |
| my $pong; |
| sysread_or_die(\*DREAD, \$pong, 5); |
| |
| if($pong =~ /^FAIL/) { |
| logmsg "DATA sockfilt said: FAIL\n"; |
| logmsg "DATA sockfilt for passive data channel failed\n"; |
| logmsg "DATA sockfilt not running\n"; |
| datasockf_state('STOPPED'); |
| sendcontrol "500 no free ports!\r\n"; |
| return; |
| } |
| elsif($pong !~ /^PONG/) { |
| logmsg "DATA sockfilt unexpected response: $pong\n"; |
| logmsg "DATA sockfilt for passive data channel failed\n"; |
| logmsg "DATA sockfilt killed now\n"; |
| killsockfilters($proto, $ipvnum, $idnum, $verbose, 'data'); |
| logmsg "DATA sockfilt not running\n"; |
| datasockf_state('STOPPED'); |
| sendcontrol "500 no free ports!\r\n"; |
| return; |
| } |
| |
| logmsg "DATA sockfilt for passive data channel started (pid $slavepid)\n"; |
| |
| # Find out on what port we listen on or have bound |
| my $i; |
| print DWRITE "PORT\n"; |
| |
| # READ the response code |
| sysread_or_die(\*DREAD, \$i, 5); |
| |
| # READ the response size |
| sysread_or_die(\*DREAD, \$i, 5); |
| |
| my $size = 0; |
| if($i =~ /^([0-9a-fA-F]{4})\n/) { |
| $size = hex($1); |
| } |
| |
| # READ the response data |
| read_datasockf(\$i, $size); |
| |
| # The data is in the format |
| # IPvX/NNN |
| |
| if($i =~ /IPv(\d)\/(\d+)/) { |
| # FIX: deal with IP protocol version |
| $pasvport = $2; |
| } |
| |
| if(!$pasvport) { |
| logmsg "DATA sockfilt unknown listener port\n"; |
| logmsg "DATA sockfilt for passive data channel failed\n"; |
| logmsg "DATA sockfilt killed now\n"; |
| killsockfilters($proto, $ipvnum, $idnum, $verbose, 'data'); |
| logmsg "DATA sockfilt not running\n"; |
| datasockf_state('STOPPED'); |
| sendcontrol "500 no free ports!\r\n"; |
| return; |
| } |
| |
| if($nodataconn) { |
| my $str = nodataconn_str(); |
| logmsg "DATA sockfilt for passive data channel ($str) bound on port ". |
| "$pasvport\n"; |
| } |
| else { |
| logmsg "DATA sockfilt for passive data channel listens on port ". |
| "$pasvport\n"; |
| } |
| |
| if($cmd ne "EPSV") { |
| # PASV reply |
| my $p=$listenaddr; |
| $p =~ s/\./,/g; |
| if($pasvbadip) { |
| $p="1,2,3,4"; |
| } |
| sendcontrol sprintf("227 Entering Passive Mode ($p,%d,%d)\n", |
| int($pasvport/256), int($pasvport%256)); |
| } |
| else { |
| # EPSV reply |
| sendcontrol sprintf("229 Entering Passive Mode (|||%d|)\n", $pasvport); |
| } |
| |
| logmsg "Client has been notified that DATA conn ". |
| "will be accepted on port $pasvport\n"; |
| |
| if($nodataconn) { |
| my $str = nodataconn_str(); |
| logmsg "====> Client fooled ($str)\n"; |
| return; |
| } |
| |
| eval { |
| local $SIG{ALRM} = sub { die "alarm\n" }; |
| |
| # assume swift operations unless explicitly slow |
| alarm ($datadelay?20:10); |
| |
| # Wait for 'CNCT' |
| my $input; |
| |
| # FIX: Monitor ctrl conn for disconnect |
| |
| while(sysread(DREAD, $input, 5)) { |
| |
| if($input !~ /^CNCT/) { |
| # we wait for a connected client |
| logmsg "Odd, we got $input from client\n"; |
| next; |
| } |
| logmsg "Client connects to port $pasvport\n"; |
| last; |
| } |
| alarm 0; |
| }; |
| if ($@) { |
| # timed out |
| logmsg "$srvrname server timed out awaiting data connection ". |
| "on port $pasvport\n"; |
| logmsg "accept failed or connection not even attempted\n"; |
| logmsg "DATA sockfilt killed now\n"; |
| killsockfilters($proto, $ipvnum, $idnum, $verbose, 'data'); |
| logmsg "DATA sockfilt not running\n"; |
| datasockf_state('STOPPED'); |
| return; |
| } |
| else { |
| logmsg "====> Client established passive DATA connection ". |
| "on port $pasvport\n"; |
| } |
| |
| return; |
| } |
| |
| # |
| # Support both PORT and EPRT here. |
| # |
| |
| sub PORT_ftp { |
| my ($arg, $cmd) = @_; |
| my $port; |
| my $addr; |
| |
| # kill previous data connection sockfilt when alive |
| if($datasockf_runs eq 'yes') { |
| killsockfilters($proto, $ipvnum, $idnum, $verbose, 'data'); |
| logmsg "DATA sockfilt for $datasockf_mode data channel killed\n"; |
| } |
| datasockf_state('STOPPED'); |
| |
| logmsg "====> Active DATA channel requested by client\n"; |
| |
| # We always ignore the given IP and use localhost. |
| |
| if($cmd eq "PORT") { |
| if($arg !~ /(\d+),(\d+),(\d+),(\d+),(\d+),(\d+)/) { |
| logmsg "DATA sockfilt for active data channel not started ". |
| "(bad PORT-line: $arg)\n"; |
| sendcontrol "500 silly you, go away\r\n"; |
| return; |
| } |
| $port = ($5<<8)+$6; |
| $addr = "$1.$2.$3.$4"; |
| } |
| # EPRT |2|::1|49706| |
| elsif($cmd eq "EPRT") { |
| if($arg !~ /(\d+)\|([^\|]+)\|(\d+)/) { |
| logmsg "DATA sockfilt for active data channel not started ". |
| "(bad EPRT-line: $arg)\n"; |
| sendcontrol "500 silly you, go away\r\n"; |
| return; |
| } |
| sendcontrol "200 Thanks for dropping by. We contact you later\r\n"; |
| $port = $3; |
| $addr = $2; |
| } |
| else { |
| logmsg "DATA sockfilt for active data channel not started ". |
| "(invalid command: $cmd)\n"; |
| sendcontrol "500 we don't like $cmd now\r\n"; |
| return; |
| } |
| |
| if(!$port || $port > 65535) { |
| logmsg "DATA sockfilt for active data channel not started ". |
| "(illegal PORT number: $port)\n"; |
| return; |
| } |
| |
| if($nodataconn) { |
| my $str = nodataconn_str(); |
| logmsg "DATA sockfilt for active data channel not started ($str)\n"; |
| datasockf_state('ACTIVE_NODATACONN'); |
| logmsg "====> Active DATA channel not established\n"; |
| return; |
| } |
| |
| logmsg "DATA sockfilt for active data channel starting...\n"; |
| |
| # We fire up a new sockfilt to do the data transfer for us. |
| my $datasockfcmd = "./server/sockfilt".exe_ext('SRV')." " . |
| "--ipv$ipvnum --connect $port --addr \"$addr\" " . |
| "--pidfile \"$datasockf_pidfile\" " . |
| "--logfile \"$datasockf_logfile\""; |
| $slavepid = open2(\*DREAD, \*DWRITE, $datasockfcmd); |
| |
| datasockf_state('ACTIVE'); |
| |
| print STDERR "$datasockfcmd\n" if($verbose); |
| |
| print DWRITE "PING\n"; |
| my $pong; |
| sysread_or_die(\*DREAD, \$pong, 5); |
| |
| if($pong =~ /^FAIL/) { |
| logmsg "DATA sockfilt said: FAIL\n"; |
| logmsg "DATA sockfilt for active data channel failed\n"; |
| logmsg "DATA sockfilt not running\n"; |
| datasockf_state('STOPPED'); |
| # client shall timeout awaiting connection from server |
| return; |
| } |
| elsif($pong !~ /^PONG/) { |
| logmsg "DATA sockfilt unexpected response: $pong\n"; |
| logmsg "DATA sockfilt for active data channel failed\n"; |
| logmsg "DATA sockfilt killed now\n"; |
| killsockfilters($proto, $ipvnum, $idnum, $verbose, 'data'); |
| logmsg "DATA sockfilt not running\n"; |
| datasockf_state('STOPPED'); |
| # client shall timeout awaiting connection from server |
| return; |
| } |
| |
| logmsg "DATA sockfilt for active data channel started (pid $slavepid)\n"; |
| |
| logmsg "====> Active DATA channel connected to client port $port\n"; |
| |
| return; |
| } |
| |
| #********************************************************************** |
| # datasockf_state is used to change variables that keep state info |
| # relative to the FTP secondary or data sockfilt process as soon as |
| # one of the five possible stable states is reached. Variables that |
| # are modified by this sub may be checked independently but should |
| # not be changed except by calling this sub. |
| # |
| sub datasockf_state { |
| my $state = $_[0]; |
| |
| if($state eq 'STOPPED') { |
| # Data sockfilter initial state, not running, |
| # not connected and not used. |
| $datasockf_state = $state; |
| $datasockf_mode = 'none'; |
| $datasockf_runs = 'no'; |
| $datasockf_conn = 'no'; |
| } |
| elsif($state eq 'PASSIVE') { |
| # Data sockfilter accepted connection from client. |
| $datasockf_state = $state; |
| $datasockf_mode = 'passive'; |
| $datasockf_runs = 'yes'; |
| $datasockf_conn = 'yes'; |
| } |
| elsif($state eq 'ACTIVE') { |
| # Data sockfilter has connected to client. |
| $datasockf_state = $state; |
| $datasockf_mode = 'active'; |
| $datasockf_runs = 'yes'; |
| $datasockf_conn = 'yes'; |
| } |
| elsif($state eq 'PASSIVE_NODATACONN') { |
| # Data sockfilter bound port without listening, |
| # client won't be able to establish data connection. |
| $datasockf_state = $state; |
| $datasockf_mode = 'passive'; |
| $datasockf_runs = 'yes'; |
| $datasockf_conn = 'no'; |
| } |
| elsif($state eq 'ACTIVE_NODATACONN') { |
| # Data sockfilter does not even run, |
| # client awaits data connection from server in vain. |
| $datasockf_state = $state; |
| $datasockf_mode = 'active'; |
| $datasockf_runs = 'no'; |
| $datasockf_conn = 'no'; |
| } |
| else { |
| die "Internal error. Unknown datasockf state: $state!"; |
| } |
| } |
| |
| #********************************************************************** |
| # nodataconn_str returns string of effective nodataconn command. Notice |
| # that $nodataconn may be set alone or in addition to a $nodataconnXXX. |
| # |
| sub nodataconn_str { |
| my $str; |
| # order matters |
| $str = 'NODATACONN' if($nodataconn); |
| $str = 'NODATACONN425' if($nodataconn425); |
| $str = 'NODATACONN421' if($nodataconn421); |
| $str = 'NODATACONN150' if($nodataconn150); |
| return "$str"; |
| } |
| |
| #********************************************************************** |
| # customize configures test server operation for each curl test, reading |
| # configuration commands/parameters from server commands file each time |
| # a new client control connection is established with the test server. |
| # On success returns 1, otherwise zero. |
| # |
| sub customize { |
| $ctrldelay = 0; # default is no throttling of the ctrl stream |
| $datadelay = 0; # default is no throttling of the data stream |
| $retrweirdo = 0; # default is no use of RETRWEIRDO |
| $retrnosize = 0; # default is no use of RETRNOSIZE |
| $pasvbadip = 0; # default is no use of PASVBADIP |
| $nosave = 0; # default is to actually save uploaded data to file |
| $nodataconn = 0; # default is to establish or accept data channel |
| $nodataconn425 = 0; # default is to not send 425 without data channel |
| $nodataconn421 = 0; # default is to not send 421 without data channel |
| $nodataconn150 = 0; # default is to not send 150 without data channel |
| @capabilities = (); # default is to not support capability commands |
| @auth_mechs = (); # default is to not support authentication commands |
| %fulltextreply = ();# |
| %commandreply = (); # |
| %customcount = (); # |
| %delayreply = (); # |
| |
| open(CUSTOM, "<log/ftpserver.cmd") || |
| return 1; |
| |
| logmsg "FTPD: Getting commands from log/ftpserver.cmd\n"; |
| |
| while(<CUSTOM>) { |
| if($_ =~ /REPLY \"([A-Z]+ [A-Za-z0-9+-\/=\*. ]+)\" (.*)/) { |
| $fulltextreply{$1}=eval "qq{$2}"; |
| logmsg "FTPD: set custom reply for $1\n"; |
| } |
| elsif($_ =~ /REPLY(LF|) ([A-Za-z0-9+\/=\*]*) (.*)/) { |
| $commandreply{$2}=eval "qq{$3}"; |
| if($1 ne "LF") { |
| $commandreply{$2}.="\r\n"; |
| } |
| else { |
| $commandreply{$2}.="\n"; |
| } |
| if($2 eq "") { |
| logmsg "FTPD: set custom reply for empty command\n"; |
| } |
| else { |
| logmsg "FTPD: set custom reply for $2 command\n"; |
| } |
| } |
| elsif($_ =~ /COUNT ([A-Z]+) (.*)/) { |
| # we blank the custom reply for this command when having |
| # been used this number of times |
| $customcount{$1}=$2; |
| logmsg "FTPD: blank custom reply for $1 command after $2 uses\n"; |
| } |
| elsif($_ =~ /DELAY ([A-Z]+) (\d*)/) { |
| $delayreply{$1}=$2; |
| logmsg "FTPD: delay reply for $1 with $2 seconds\n"; |
| } |
| elsif($_ =~ /SLOWDOWN/) { |
| $ctrldelay=1; |
| $datadelay=1; |
| logmsg "FTPD: send response with 0.01 sec delay between each byte\n"; |
| } |
| elsif($_ =~ /RETRWEIRDO/) { |
| logmsg "FTPD: instructed to use RETRWEIRDO\n"; |
| $retrweirdo=1; |
| } |
| elsif($_ =~ /RETRNOSIZE/) { |
| logmsg "FTPD: instructed to use RETRNOSIZE\n"; |
| $retrnosize=1; |
| } |
| elsif($_ =~ /PASVBADIP/) { |
| logmsg "FTPD: instructed to use PASVBADIP\n"; |
| $pasvbadip=1; |
| } |
| elsif($_ =~ /NODATACONN425/) { |
| # applies to both active and passive FTP modes |
| logmsg "FTPD: instructed to use NODATACONN425\n"; |
| $nodataconn425=1; |
| $nodataconn=1; |
| } |
| elsif($_ =~ /NODATACONN421/) { |
| # applies to both active and passive FTP modes |
| logmsg "FTPD: instructed to use NODATACONN421\n"; |
| $nodataconn421=1; |
| $nodataconn=1; |
| } |
| elsif($_ =~ /NODATACONN150/) { |
| # applies to both active and passive FTP modes |
| logmsg "FTPD: instructed to use NODATACONN150\n"; |
| $nodataconn150=1; |
| $nodataconn=1; |
| } |
| elsif($_ =~ /NODATACONN/) { |
| # applies to both active and passive FTP modes |
| logmsg "FTPD: instructed to use NODATACONN\n"; |
| $nodataconn=1; |
| } |
| elsif($_ =~ /CAPA (.*)/) { |
| logmsg "FTPD: instructed to support CAPABILITY command\n"; |
| @capabilities = split(/ (?!(?:[^" ]|[^"] [^"])+")/, $1); |
| foreach (@capabilities) { |
| $_ = $1 if /^"(.*)"$/; |
| } |
| } |
| elsif($_ =~ /AUTH (.*)/) { |
| logmsg "FTPD: instructed to support AUTHENTICATION command\n"; |
| @auth_mechs = split(/ /, $1); |
| } |
| elsif($_ =~ /NOSAVE/) { |
| # don't actually store the file we upload - to be used when |
| # uploading insanely huge amounts |
| $nosave = 1; |
| logmsg "FTPD: NOSAVE prevents saving of uploaded data\n"; |
| } |
| } |
| close(CUSTOM); |
| } |
| |
| #---------------------------------------------------------------------- |
| #---------------------------------------------------------------------- |
| #--------------------------- END OF SUBS ---------------------------- |
| #---------------------------------------------------------------------- |
| #---------------------------------------------------------------------- |
| |
| #********************************************************************** |
| # Parse command line options |
| # |
| # Options: |
| # |
| # --verbose # verbose |
| # --srcdir # source directory |
| # --id # server instance number |
| # --proto # server protocol |
| # --pidfile # server pid file |
| # --logfile # server log file |
| # --ipv4 # server IP version 4 |
| # --ipv6 # server IP version 6 |
| # --port # server listener port |
| # --addr # server address for listener port binding |
| # |
| while(@ARGV) { |
| if($ARGV[0] eq '--verbose') { |
| $verbose = 1; |
| } |
| elsif($ARGV[0] eq '--srcdir') { |
| if($ARGV[1]) { |
| $srcdir = $ARGV[1]; |
| shift @ARGV; |
| } |
| } |
| elsif($ARGV[0] eq '--id') { |
| if($ARGV[1] && ($ARGV[1] =~ /^(\d+)$/)) { |
| $idnum = $1 if($1 > 0); |
| shift @ARGV; |
| } |
| } |
| elsif($ARGV[0] eq '--proto') { |
| if($ARGV[1] && ($ARGV[1] =~ /^(ftp|imap|pop3|smtp)$/)) { |
| $proto = $1; |
| shift @ARGV; |
| } |
| else { |
| die "unsupported protocol $ARGV[1]"; |
| } |
| } |
| elsif($ARGV[0] eq '--pidfile') { |
| if($ARGV[1]) { |
| $pidfile = $ARGV[1]; |
| shift @ARGV; |
| } |
| } |
| elsif($ARGV[0] eq '--logfile') { |
| if($ARGV[1]) { |
| $logfile = $ARGV[1]; |
| shift @ARGV; |
| } |
| } |
| elsif($ARGV[0] eq '--ipv4') { |
| $ipvnum = 4; |
| $listenaddr = '127.0.0.1' if($listenaddr eq '::1'); |
| } |
| elsif($ARGV[0] eq '--ipv6') { |
| $ipvnum = 6; |
| $listenaddr = '::1' if($listenaddr eq '127.0.0.1'); |
| } |
| elsif($ARGV[0] eq '--port') { |
| if($ARGV[1] && ($ARGV[1] =~ /^(\d+)$/)) { |
| $port = $1 if($1 > 1024); |
| shift @ARGV; |
| } |
| } |
| elsif($ARGV[0] eq '--addr') { |
| if($ARGV[1]) { |
| my $tmpstr = $ARGV[1]; |
| if($tmpstr =~ /^(\d\d?\d?)\.(\d\d?\d?)\.(\d\d?\d?)\.(\d\d?\d?)$/) { |
| $listenaddr = "$1.$2.$3.$4" if($ipvnum == 4); |
| } |
| elsif($ipvnum == 6) { |
| $listenaddr = $tmpstr; |
| $listenaddr =~ s/^\[(.*)\]$/$1/; |
| } |
| shift @ARGV; |
| } |
| } |
| else { |
| print STDERR "\nWarning: ftpserver.pl unknown parameter: $ARGV[0]\n"; |
| } |
| shift @ARGV; |
| } |
| |
| #*************************************************************************** |
| # Initialize command line option dependent variables |
| # |
| |
| if(!$srcdir) { |
| $srcdir = $ENV{'srcdir'} || '.'; |
| } |
| if(!$pidfile) { |
| $pidfile = "$path/". server_pidfilename($proto, $ipvnum, $idnum); |
| } |
| if(!$logfile) { |
| $logfile = server_logfilename($logdir, $proto, $ipvnum, $idnum); |
| } |
| |
| $mainsockf_pidfile = "$path/". |
| mainsockf_pidfilename($proto, $ipvnum, $idnum); |
| $mainsockf_logfile = |
| mainsockf_logfilename($logdir, $proto, $ipvnum, $idnum); |
| |
| if($proto eq 'ftp') { |
| $datasockf_pidfile = "$path/". |
| datasockf_pidfilename($proto, $ipvnum, $idnum); |
| $datasockf_logfile = |
| datasockf_logfilename($logdir, $proto, $ipvnum, $idnum); |
| } |
| |
| $srvrname = servername_str($proto, $ipvnum, $idnum); |
| |
| $idstr = "$idnum" if($idnum > 1); |
| |
| protocolsetup($proto); |
| |
| $SIG{INT} = \&exit_signal_handler; |
| $SIG{TERM} = \&exit_signal_handler; |
| |
| startsf(); |
| |
| logmsg sprintf("%s server listens on port IPv${ipvnum}/${port}\n", uc($proto)); |
| |
| open(PID, ">$pidfile"); |
| print PID $$."\n"; |
| close(PID); |
| |
| logmsg("logged pid $$ in $pidfile\n"); |
| |
| |
| while(1) { |
| |
| # kill previous data connection sockfilt when alive |
| if($datasockf_runs eq 'yes') { |
| killsockfilters($proto, $ipvnum, $idnum, $verbose, 'data'); |
| logmsg "DATA sockfilt for $datasockf_mode data channel killed now\n"; |
| } |
| datasockf_state('STOPPED'); |
| |
| # |
| # We read 'sockfilt' commands. |
| # |
| my $input; |
| |
| logmsg "Awaiting input\n"; |
| sysread_or_die(\*SFREAD, \$input, 5); |
| |
| if($input !~ /^CNCT/) { |
| # we wait for a connected client |
| logmsg "MAIN sockfilt said: $input"; |
| next; |
| } |
| logmsg "====> Client connect\n"; |
| |
| set_advisor_read_lock($SERVERLOGS_LOCK); |
| $serverlogslocked = 1; |
| |
| # flush data: |
| $| = 1; |
| |
| &customize(); # read test control instructions |
| |
| my $welcome = $commandreply{"welcome"}; |
| if(!$welcome) { |
| $welcome = $displaytext{"welcome"}; |
| } |
| else { |
| # clear it after use |
| $commandreply{"welcome"}=""; |
| if($welcome !~ /\r\n\z/) { |
| $welcome .= "\r\n"; |
| } |
| } |
| sendcontrol $welcome; |
| |
| #remove global variables from last connection |
| if($ftplistparserstate) { |
| undef $ftplistparserstate; |
| } |
| if($ftptargetdir) { |
| $ftptargetdir = ""; |
| } |
| |
| if($verbose) { |
| print STDERR "OUT: $welcome"; |
| } |
| |
| my $full = ""; |
| |
| while(1) { |
| my $i; |
| |
| # Now we expect to read DATA\n[hex size]\n[prot], where the [prot] |
| # part only is FTP lingo. |
| |
| # COMMAND |
| sysread_or_die(\*SFREAD, \$i, 5); |
| |
| if($i !~ /^DATA/) { |
| logmsg "MAIN sockfilt said $i"; |
| if($i =~ /^DISC/) { |
| # disconnect |
| last; |
| } |
| next; |
| } |
| |
| # SIZE of data |
| sysread_or_die(\*SFREAD, \$i, 5); |
| |
| my $size = 0; |
| if($i =~ /^([0-9a-fA-F]{4})\n/) { |
| $size = hex($1); |
| } |
| |
| # data |
| read_mainsockf(\$input, $size); |
| |
| ftpmsg $input; |
| |
| $full .= $input; |
| |
| # Loop until command completion |
| next unless($full =~ /\r\n$/); |
| |
| # Remove trailing CRLF. |
| $full =~ s/[\n\r]+$//; |
| |
| my $FTPCMD; |
| my $FTPARG; |
| if($proto eq "imap") { |
| # IMAP is different with its identifier first on the command line |
| if(($full =~ /^([^ ]+) ([^ ]+) (.*)/) || |
| ($full =~ /^([^ ]+) ([^ ]+)/)) { |
| $cmdid=$1; # set the global variable |
| $FTPCMD=$2; |
| $FTPARG=$3; |
| } |
| # IMAP authentication cancellation |
| elsif($full =~ /^\*$/) { |
| # Command id has already been set |
| $FTPCMD="*"; |
| $FTPARG=""; |
| } |
| # IMAP long "commands" are base64 authentication data |
| elsif($full =~ /^[A-Z0-9+\/]*={0,2}$/i) { |
| # Command id has already been set |
| $FTPCMD=$full; |
| $FTPARG=""; |
| } |
| else { |
| sendcontrol "$full BAD Command\r\n"; |
| last; |
| } |
| } |
| elsif($full =~ /^([A-Z]{3,4})(\s(.*))?$/i) { |
| $FTPCMD=$1; |
| $FTPARG=$3; |
| } |
| elsif($proto eq "pop3") { |
| # POP3 authentication cancellation |
| if($full =~ /^\*$/) { |
| $FTPCMD="*"; |
| $FTPARG=""; |
| } |
| # POP3 long "commands" are base64 authentication data |
| elsif($full =~ /^[A-Z0-9+\/]*={0,2}$/i) { |
| $FTPCMD=$full; |
| $FTPARG=""; |
| } |
| else { |
| sendcontrol "-ERR Unrecognized command\r\n"; |
| last; |
| } |
| } |
| elsif($proto eq "smtp") { |
| # SMTP authentication cancellation |
| if($full =~ /^\*$/) { |
| $FTPCMD="*"; |
| $FTPARG=""; |
| } |
| # SMTP long "commands" are base64 authentication data |
| elsif($full =~ /^[A-Z0-9+\/]{0,512}={0,2}$/i) { |
| $FTPCMD=$full; |
| $FTPARG=""; |
| } |
| else { |
| sendcontrol "500 Unrecognized command\r\n"; |
| last; |
| } |
| } |
| else { |
| sendcontrol "500 Unrecognized command\r\n"; |
| last; |
| } |
| |
| logmsg "< \"$full\"\n"; |
| |
| if($verbose) { |
| print STDERR "IN: $full\n"; |
| } |
| |
| $full = ""; |
| |
| my $delay = $delayreply{$FTPCMD}; |
| if($delay) { |
| # just go sleep this many seconds! |
| logmsg("Sleep for $delay seconds\n"); |
| my $twentieths = $delay * 20; |
| while($twentieths--) { |
| portable_sleep(0.05) unless($got_exit_signal); |
| } |
| } |
| |
| my $check = 1; # no response yet |
| |
| # See if there is a custom reply for the full text |
| my $fulltext = $FTPARG ? $FTPCMD . " " . $FTPARG : $FTPCMD; |
| my $text = $fulltextreply{$fulltext}; |
| if($text && ($text ne "")) { |
| sendcontrol "$text\r\n"; |
| $check = 0; |
| } |
| else { |
| # See if there is a custom reply for the command |
| $text = $commandreply{$FTPCMD}; |
| if($text && ($text ne "")) { |
| if($customcount{$FTPCMD} && (!--$customcount{$FTPCMD})) { |
| # used enough times so blank the custom command reply |
| $commandreply{$FTPCMD}=""; |
| } |
| |
| sendcontrol $text; |
| $check = 0; |
| } |
| else { |
| # See if there is any display text for the command |
| $text = $displaytext{$FTPCMD}; |
| if($text && ($text ne "")) { |
| if($proto eq 'imap') { |
| sendcontrol "$cmdid $text\r\n"; |
| } |
| else { |
| sendcontrol "$text\r\n"; |
| } |
| |
| $check = 0; |
| } |
| |
| # only perform this if we're not faking a reply |
| my $func = $commandfunc{uc($FTPCMD)}; |
| if($func) { |
| &$func($FTPARG, $FTPCMD); |
| $check = 0; |
| } |
| } |
| } |
| |
| if($check) { |
| logmsg "$FTPCMD wasn't handled!\n"; |
| if($proto eq 'pop3') { |
| sendcontrol "-ERR $FTPCMD is not dealt with!\r\n"; |
| } |
| elsif($proto eq 'imap') { |
| sendcontrol "$cmdid BAD $FTPCMD is not dealt with!\r\n"; |
| } |
| else { |
| sendcontrol "500 $FTPCMD is not dealt with!\r\n"; |
| } |
| } |
| |
| } # while(1) |
| logmsg "====> Client disconnected\n"; |
| |
| if($serverlogslocked) { |
| $serverlogslocked = 0; |
| clear_advisor_read_lock($SERVERLOGS_LOCK); |
| } |
| } |
| |
| killsockfilters($proto, $ipvnum, $idnum, $verbose); |
| unlink($pidfile); |
| if($serverlogslocked) { |
| $serverlogslocked = 0; |
| clear_advisor_read_lock($SERVERLOGS_LOCK); |
| } |
| |
| exit; |
