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author | Mystery Man <unknown@mandriva.org> | 2002-07-08 07:45:08 +0000 |
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committer | Mystery Man <unknown@mandriva.org> | 2002-07-08 07:45:08 +0000 |
commit | 93fcd1d443d69857dc3c5d859a73f593d4e12d70 (patch) | |
tree | c1fd7550aaa100db9c8cafab358531978b6386d8 /perl-install/standalone/interactive_http/miniserv.pl | |
parent | 9555bb791920e8feace953f90cf908e864451b59 (diff) | |
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This commit was manufactured by cvs2svn to create tag 'V1_1_8_1mdk'.V1_1_8_1mdk
Diffstat (limited to 'perl-install/standalone/interactive_http/miniserv.pl')
-rw-r--r-- | perl-install/standalone/interactive_http/miniserv.pl | 1817 |
1 files changed, 0 insertions, 1817 deletions
diff --git a/perl-install/standalone/interactive_http/miniserv.pl b/perl-install/standalone/interactive_http/miniserv.pl deleted file mode 100644 index b11ce26e2..000000000 --- a/perl-install/standalone/interactive_http/miniserv.pl +++ /dev/null @@ -1,1817 +0,0 @@ -#!/usr/bin/perl -# A very simple perl web server used by Webmin - -# Require basic libraries -package miniserv; -use Socket; -use POSIX; -use Sys::Hostname; - -# Find and read config file -if (@ARGV != 1) { - die "Usage: miniserv.pl <config file>"; - } -if ($ARGV[0] =~ /^\//) { - $conf = $ARGV[0]; - } -else { - chop($pwd = `pwd`); - $conf = "$pwd/$ARGV[0]"; - } -open(CONF, $conf) || die "Failed to open config file $conf : $!"; -while(<CONF>) { - s/\r|\n//g; - if (/^#/ || !/\S/) { next; } - /^([^=]+)=(.*)$/; - $name = $1; $val = $2; - $name =~ s/^\s+//g; $name =~ s/\s+$//g; - $val =~ s/^\s+//g; $val =~ s/\s+$//g; - $config{$name} = $val; - } -close(CONF); - -# Check is SSL is enabled and available -if ($config{'ssl'}) { - eval "use Net::SSLeay"; - if (!$@) { - $use_ssl = 1; - # These functions only exist for SSLeay 1.0 - eval "Net::SSLeay::SSLeay_add_ssl_algorithms()"; - eval "Net::SSLeay::load_error_strings()"; - if (defined(&Net::SSLeay::X509_STORE_CTX_get_current_cert) && - defined(&Net::SSLeay::CTX_load_verify_locations) && - defined(&Net::SSLeay::CTX_set_verify)) { - $client_certs = 1; - } - } - } - -# Check if the syslog module is available to log hacking attempts -if ($config{'syslog'}) { - eval "use Sys::Syslog qw(:DEFAULT setlogsock)"; - if (!$@) { - $use_syslog = 1; - } - } - -# check if the PAM module is available to authenticate -eval "use Authen::PAM"; -if (!$@) { - # check if the PAM authentication can be used by opening a handle - if (! ref($pamh = new Authen::PAM("miniserv", "root", \&pam_conv_func))) { - print STDERR "PAM module available, but error during init !\n"; - print STDERR "Disabling PAM functions.\n"; - } - else { - $use_pam = 1; - } - } - -# check if the TCP-wrappers module is available -if ($config{'libwrap'}) { - eval "use Authen::Libwrap qw(hosts_ctl STRING_UNKNOWN)"; - if (!$@) { - $use_libwrap = 1; - } - } - -# Get miniserv's perl path and location -$miniserv_path = $0; -open(SOURCE, $miniserv_path); -<SOURCE> =~ /^#!(\S+)/; $perl_path = $1; -close(SOURCE); -@miniserv_argv = @ARGV; - -# Check vital config options -%vital = ("port", 80, - "root", "./", - "server", "MiniServ/0.01", - "index_docs", "index.html index.htm index.cgi", - "addtype_html", "text/html", - "addtype_txt", "text/plain", - "addtype_gif", "image/gif", - "addtype_jpg", "image/jpeg", - "addtype_jpeg", "image/jpeg", - "realm", "MiniServ", - "session_login", "/session_login.cgi" - ); -foreach $v (keys %vital) { - if (!$config{$v}) { - if ($vital{$v} eq "") { - die "Missing config option $v"; - } - $config{$v} = $vital{$v}; - } - } -if (!$config{'sessiondb'}) { - $config{'pidfile'} =~ /^(.*)\/[^\/]+$/; - $config{'sessiondb'} = "$1/sessiondb"; - } -die "Session authentication cannot be used in inetd mode" - if ($config{'inetd'} && $config{'session'}); - -# init days and months for http_date -@weekday = ( "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" ); -@month = ( "Jan", "Feb", "Mar", "Apr", "May", "Jun", - "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" ); - -# Change dir to the server root -chdir($config{'root'}); -$user_homedir = (getpwuid($<))[7]; - -# Read users file -if ($config{'userfile'}) { - open(USERS, $config{'userfile'}); - while(<USERS>) { - s/\r|\n//g; - local @user = split(/:/, $_); - $users{$user[0]} = $user[1]; - $certs{$user[0]} = $user[3] if ($user[3]); - if ($user[4] =~ /^allow\s+(.*)/) { - $allow{$user[0]} = [ &to_ipaddress(split(/\s+/, $1)) ]; - } - elsif ($user[4] =~ /^deny\s+(.*)/) { - $deny{$user[0]} = [ &to_ipaddress(split(/\s+/, $1)) ]; - } - } - close(USERS); - } - -# Setup SSL if possible and if requested -if ($use_ssl) { - $ssl_ctx = Net::SSLeay::CTX_new() || - die "Failed to create SSL context : $!"; - $client_certs = 0 if (!$config{'ca'} || !%certs); - if ($client_certs) { - Net::SSLeay::CTX_load_verify_locations( - $ssl_ctx, $config{'ca'}, ""); - Net::SSLeay::CTX_set_verify( - $ssl_ctx, &Net::SSLeay::VERIFY_PEER, \&verify_client); - } - - Net::SSLeay::CTX_use_RSAPrivateKey_file( - $ssl_ctx, $config{'keyfile'}, - &Net::SSLeay::FILETYPE_PEM) || die "Failed to open SSL key"; - Net::SSLeay::CTX_use_certificate_file( - $ssl_ctx, $config{'keyfile'}, - &Net::SSLeay::FILETYPE_PEM); - } - -# Setup syslog support if possible and if requested -if ($use_syslog) { - eval { openlog("miniserv", "cons,pid,ndelay", "daemon") }; - $use_syslog = 0 if ($@); - } - -# Read MIME types file and add extra types -if ($config{"mimetypes"} ne "") { - open(MIME, $config{"mimetypes"}); - while(<MIME>) { - chop; s/#.*$//; - if (/^(\S+)\s+(.*)$/) { - $type = $1; @exts = split(/\s+/, $2); - foreach $ext (@exts) { - $mime{$ext} = $type; - } - } - } - close(MIME); - } -foreach $k (keys %config) { - if ($k !~ /^addtype_(.*)$/) { next; } - $mime{$1} = $config{$k}; - } - -# get the time zone -if ($config{'log'}) { - local(@gmt, @lct, $days, $hours, $mins); - @make_date_marr = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", - "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"); - @gmt = gmtime(time()); - @lct = localtime(time()); - $days = $lct[3] - $gmt[3]; - $hours = ($days < -1 ? 24 : 1 < $days ? -24 : $days * 24) + - $lct[2] - $gmt[2]; - $mins = $hours * 60 + $lct[1] - $gmt[1]; - $timezone = ($mins < 0 ? "-" : "+"); $mins = abs($mins); - $timezone .= sprintf "%2.2d%2.2d", $mins/60, $mins%60; - } - -if ($config{'inetd'}) { - # We are being run from inetd - go direct to handling the request - $SIG{'HUP'} = 'IGNORE'; - $SIG{'TERM'} = 'DEFAULT'; - $SIG{'PIPE'} = 'DEFAULT'; - open(SOCK, "+>&STDIN"); - - # Check if it is time for the logfile to be cleared - if ($config{'logclear'}) { - local $write_logtime = 0; - local @st = stat("$config{'logfile'}.time"); - if (@st) { - if ($st[9]+$config{'logtime'}*60*60 < time()){ - # need to clear log - $write_logtime = 1; - unlink($config{'logfile'}); - } - } - else { $write_logtime = 1; } - if ($write_logtime) { - open(LOGTIME, ">$config{'logfile'}.time"); - print LOGTIME time(),"\n"; - close(LOGTIME); - } - } - - # Initialize SSL for this connection - if ($use_ssl) { - $ssl_con = Net::SSLeay::new($ssl_ctx); - Net::SSLeay::set_fd($ssl_con, fileno(SOCK)); - #Net::SSLeay::use_RSAPrivateKey_file( - # $ssl_con, $config{'keyfile'}, - # &Net::SSLeay::FILETYPE_PEM); - #Net::SSLeay::use_certificate_file( - # $ssl_con, $config{'keyfile'}, - # &Net::SSLeay::FILETYPE_PEM); - Net::SSLeay::accept($ssl_con) || exit; - } - - # Work out the hostname for this web server - if (!$config{'host'}) { - ($myport, $myaddr) = - unpack_sockaddr_in(getsockname(SOCK)); - $myname = gethostbyaddr($myaddr, AF_INET); - if ($myname eq "") { - $myname = inet_ntoa($myaddr); - } - $host = $myname; - } - else { $host = $config{'host'}; } - $port = $config{'port'}; - - while(&handle_request(getpeername(SOCK), getsockname(SOCK))) { } - close(SOCK); - exit; - } - -# Open main socket -$proto = getprotobyname('tcp'); -socket(MAIN, PF_INET, SOCK_STREAM, $proto) || - die "Failed to open main socket : $!"; -setsockopt(MAIN, SOL_SOCKET, SO_REUSEADDR, pack("l", 1)); -$baddr = $config{"bind"} ? inet_aton($config{"bind"}) : INADDR_ANY; -for($i=0; $i<5; $i++) { - last if (bind(MAIN, sockaddr_in($config{port}, $baddr))); - sleep(1); - } -die "Failed to bind port $config{port} : $!" if ($i == 5); -listen(MAIN, SOMAXCONN); - -if ($config{'listen'}) { - # Open the socket that allows other miniserv servers to find this one - $proto = getprotobyname('udp'); - if (socket(LISTEN, PF_INET, SOCK_DGRAM, $proto)) { - setsockopt(LISTEN, SOL_SOCKET, SO_REUSEADDR, pack("l", 1)); - bind(LISTEN, sockaddr_in($config{'listen'}, INADDR_ANY)); - listen(LISTEN, SOMAXCONN); - } - else { - print STDERR "Failed to open listening socket : $!\n"; - $config{'listen'} = 0; - } - } - - -# Split from the controlling terminal -if (fork()) { exit; } -setsid(); - -# write out the PID file -open(PIDFILE, "> $config{'pidfile'}"); -printf PIDFILE "%d\n", getpid(); -close(PIDFILE); - -# Start the log-clearing process, if needed. This checks every minute -# to see if the log has passed its reset time, and if so clears it -if ($config{'logclear'}) { - if (!($logclearer = fork())) { - while(1) { - local $write_logtime = 0; - local @st = stat("$config{'logfile'}.time"); - if (@st) { - if ($st[9]+$config{'logtime'}*60*60 < time()){ - # need to clear log - $write_logtime = 1; - unlink($config{'logfile'}); - } - } - else { $write_logtime = 1; } - if ($write_logtime) { - open(LOGTIME, ">$config{'logfile'}.time"); - print LOGTIME time(),"\n"; - close(LOGTIME); - } - sleep(5*60); - } - exit; - } - push(@childpids, $logclearer); - } - -# Setup the logout time dbm if needed -if ($config{'session'}) { - eval "use SDBM_File"; - dbmopen(%sessiondb, $config{'sessiondb'}, 0700); - eval { $sessiondb{'1111111111'} = 'foo bar' }; - if ($@) { - dbmclose(%sessiondb); - eval "use NDBM_File"; - dbmopen(%sessiondb, $config{'sessiondb'}, 0700); - } - } - -# Run the main loop -$SIG{'HUP'} = 'miniserv::trigger_restart'; -$SIG{'TERM'} = 'miniserv::term_handler'; -$SIG{'PIPE'} = 'IGNORE'; -@deny = &to_ipaddress(split(/\s+/, $config{"deny"})); -@allow = &to_ipaddress(split(/\s+/, $config{"allow"})); -$p = 0; -while(1) { - # wait for a new connection, or a message from a child process - undef($rmask); - vec($rmask, fileno(MAIN), 1) = 1; - if ($config{'passdelay'} || $config{'session'}) { - for($i=0; $i<@passin; $i++) { - vec($rmask, fileno($passin[$i]), 1) = 1; - } - } - vec($rmask, fileno(LISTEN), 1) = 1 if ($config{'listen'}); - - local $sel = select($rmask, undef, undef, 10); - if ($need_restart) { &restart_miniserv(); } - local $time_now = time(); - - # Clean up finished processes - local($pid); - do { $pid = waitpid(-1, WNOHANG); - @childpids = grep { $_ != $pid } @childpids; - } while($pid > 0); - - # run the unblocking procedure to check if enough time has passed to - # unblock hosts that heve been blocked because of password failures - if ($config{'blockhost_failures'}) { - $i = 0; - while ($i <= $#deny) { - if ($blockhosttime{$deny[$i]} && $config{'blockhost_time'} != 0 && - ($time_now - $blockhosttime{$deny[$i]}) >= $config{'blockhost_time'}) { - # the host can be unblocked now - $hostfail{$deny[$i]} = 0; - splice(@deny, $i, 1); - } - $i++; - } - } - - if ($config{'session'}) { - # Remove sessions with more than 7 days of inactivity - foreach $s (keys %sessiondb) { - local ($user, $ltime) = split(/\s+/, $sessiondb{$s}); - if ($time_now - $ltime > 7*24*60*60) { - delete($sessiondb{$s}); - } - } - } - next if ($sel <= 0); - if (vec($rmask, fileno(MAIN), 1)) { - # got new connection - $acptaddr = accept(SOCK, MAIN); - if (!$acptaddr) { next; } - - # create pipes - if ($config{'passdelay'} || $config{'session'}) { - $PASSINr = "PASSINr$p"; $PASSINw = "PASSINw$p"; - $PASSOUTr = "PASSOUTr$p"; $PASSOUTw = "PASSOUTw$p"; - $p++; - pipe($PASSINr, $PASSINw); - pipe($PASSOUTr, $PASSOUTw); - select($PASSINw); $| = 1; select($PASSINr); $| = 1; - select($PASSOUTw); $| = 1; select($PASSOUTw); $| = 1; - } - select(STDOUT); - - # Check username of connecting user - local ($peerp, $peera) = unpack_sockaddr_in($acptaddr); - $localauth_user = undef; - if ($config{'localauth'} && inet_ntoa($peera) eq "127.0.0.1") { - if (open(TCP, "/proc/net/tcp")) { - # Get the info direct from the kernel - while(<TCP>) { - s/^\s+//; - local @t = split(/[\s:]+/, $_); - if ($t[1] eq '0100007F' && - $t[2] eq sprintf("%4.4X", $peerp)) { - $localauth_user = getpwuid($t[11]); - last; - } - } - close(TCP); - } - else { - # Call lsof for the info - local $lsofpid = open(LSOF, - "$config{'localauth'} -i TCP\@127.0.0.1:$peerp |"); - while(<LSOF>) { - if (/^(\S+)\s+(\d+)\s+(\S+)/ && - $2 != $$ && $2 != $lsofpid) { - $localauth_user = $3; - } - } - close(LSOF); - } - } - - # fork the subprocess - if (!($handpid = fork())) { - # setup signal handlers - $SIG{'TERM'} = 'DEFAULT'; - $SIG{'PIPE'} = 'DEFAULT'; - #$SIG{'CHLD'} = 'IGNORE'; - $SIG{'HUP'} = 'IGNORE'; - - # Initialize SSL for this connection - if ($use_ssl) { - $ssl_con = Net::SSLeay::new($ssl_ctx); - Net::SSLeay::set_fd($ssl_con, fileno(SOCK)); - #Net::SSLeay::use_RSAPrivateKey_file( - # $ssl_con, $config{'keyfile'}, - # &Net::SSLeay::FILETYPE_PEM); - #Net::SSLeay::use_certificate_file( - # $ssl_con, $config{'keyfile'}, - # &Net::SSLeay::FILETYPE_PEM); - Net::SSLeay::accept($ssl_con) || exit; - } - - # close useless pipes - if ($config{'passdelay'} || $config{'session'}) { - foreach $p (@passin) { close($p); } - foreach $p (@passout) { close($p); } - close($PASSINr); close($PASSOUTw); - } - close(MAIN); - - # Work out the hostname for this web server - if (!$config{'host'}) { - ($myport, $myaddr) = - unpack_sockaddr_in(getsockname(SOCK)); - $myname = gethostbyaddr($myaddr, AF_INET); - if ($myname eq "") { - $myname = inet_ntoa($myaddr); - } - $host = $myname; - } - else { $host = $config{'host'}; } - $port = $config{'port'}; - - local $switched = 0; - if ($config{'remoteuser'} && $localauth_user && !$<) { - # Switch to the UID of the remote user - local @u = getpwnam($localauth_user); - if (@u) { - $( = $u[3]; $) = "$u[3] $u[3]"; - $< = $> = $u[2]; - $switched = 1; - } - } - if ($config{'switchuser'} && !$< && !$switched) { - # Switch to the UID of server user - local @u = getpwnam($config{'switchuser'}); - if (@u) { - $( = $u[3]; $) = "$u[3] $u[3]"; - $< = $> = $u[2]; - } - } - - while(&handle_request($acptaddr, getsockname(SOCK))) { } - shutdown(SOCK, 1); - close(SOCK); - close($PASSINw); close($PASSOUTw); - exit; - } - push(@childpids, $handpid); - if ($config{'passdelay'} || $config{'session'}) { - close($PASSINw); close($PASSOUTr); - push(@passin, $PASSINr); push(@passout, $PASSOUTw); - } - close(SOCK); - } - - if ($config{'listen'} && vec($rmask, fileno(LISTEN), 1)) { - # Got UDP packet from another miniserv server - local $rcvbuf; - local $from = recv(LISTEN, $rcvbuf, 1024, 0); - next if (!$from); - local $fromip = inet_ntoa((unpack_sockaddr_in($from))[1]); - local $toip = inet_ntoa((unpack_sockaddr_in( - getsockname(LISTEN)))[1]); - if ((!@deny || !&ip_match($fromip, $toip, @deny)) && - (!@allow || &ip_match($fromip, $toip, @allow))) { - send(LISTEN, "$config{'host'}:$config{'port'}:". - "$use_ssl", 0, $from); - } - } - - # check for password-timeout messages from subprocesses - for($i=0; $i<@passin; $i++) { - if (vec($rmask, fileno($passin[$i]), 1)) { - # this sub-process is asking about a password - $infd = $passin[$i]; $outfd = $passout[$i]; - $inline = <$infd>; - if ($inline =~ /^delay\s+(\S+)\s+(\S+)\s+(\d+)/) { - # Got a delay request from a subprocess.. for - # valid logins, there is no delay (to prevent - # denial of service attacks), but for invalid - # logins the delay increases with each failed - # attempt. - if ($3) { - # login OK.. no delay - print $outfd "0 0\n"; - $hostfail{$2} = 0; - } - else { - # login failed.. - $hostfail{$2}++; - # add the host to the block list if necessary - if ($config{'blockhost_failures'} && - $hostfail{$2} >= $config{'blockhost_failures'}) { - push(@deny, $2); - $blockhosttime{$2} = $time_now; - $blocked = 1; - if ($use_syslog) { - local $logtext = "Security alert: Host $2 ". - "blocked after $config{'blockhost_failures'} ". - "failed logins for user $1"; - syslog("crit", $logtext); - } - } - else { - $blocked = 0; - } - $dl = $userdlay{$1} - - int(($time_now - $userlast{$1})/50); - $dl = $dl < 0 ? 0 : $dl+1; - print $outfd "$dl $blocked\n"; - $userdlay{$1} = $dl; - } - $userlast{$1} = $time_now; - } - elsif ($inline =~ /^verify\s+(\S+)/) { - # Verifying a session ID - local $session_id = $1; - if (!defined($sessiondb{$session_id})) { - print $outfd "0 0\n"; - } - else { - local ($user, $ltime) = split(/\s+/, $sessiondb{$session_id}); - if ($config{'logouttime'} && - $time_now - $ltime > $config{'logouttime'}*60) { - print $outfd "1 ",$time_now - $ltime,"\n"; - delete($sessiondb{$session_id}); - } - else { - print $outfd "2 $user\n"; - $sessiondb{$session_id} = "$user $time_now"; - } - } - } - elsif ($inline =~ /^new\s+(\S+)\s+(\S+)/) { - # Creating a new session - $sessiondb{$1} = "$2 $time_now"; - } - elsif ($inline =~ /^delete\s+(\S+)/) { - # Logging out a session - print $outfd $sessiondb{$1} ? 1 : 0,"\n"; - delete($sessiondb{$1}); - } - else { - # close pipe - close($infd); close($outfd); - $passin[$i] = $passout[$i] = undef; - } - } - } - @passin = grep { defined($_) } @passin; - @passout = grep { defined($_) } @passout; - } - -# handle_request(remoteaddress, localaddress) -# Where the real work is done -sub handle_request -{ -$acptip = inet_ntoa((unpack_sockaddr_in($_[0]))[1]); -$localip = $_[1] ? inet_ntoa((unpack_sockaddr_in($_[1]))[1]) : undef; -if ($config{'loghost'}) { - $acpthost = gethostbyaddr(inet_aton($acptip), AF_INET); - $acpthost = $acptip if (!$acpthost); - } -else { - $acpthost = $acptip; - } -$datestr = &http_date(time()); -$ok_code = 200; -$ok_message = "Document follows"; - -# Wait at most 60 secs for start of headers (but only for the first time) -if (!$checked_timeout) { - local $rmask; - vec($rmask, fileno(SOCK), 1) = 1; - local $sel = select($rmask, undef, undef, 60); - $sel || &http_error(400, "Timeout"); - $checked_timeout++; - } - -# Read the HTTP request and headers -($reqline = &read_line()) =~ s/\r|\n//g; -if (!($reqline =~ /^(GET|POST|HEAD)\s+(.*)\s+HTTP\/1\..$/)) { - &http_error(400, "Bad Request"); - } -$method = $1; $request_uri = $page = $2; -%header = (); -local $lastheader; -while(1) { - ($headline = &read_line()) =~ s/\r|\n//g; - last if ($headline eq ""); - if ($headline =~ /^(\S+):\s+(.*)$/) { - $header{$lastheader = lc($1)} = $2; - } - elsif ($headline =~ /^\s+(.*)$/) { - $header{$lastheader} .= $headline; - } - else { - &http_error(400, "Bad Header $headline"); - } - } -if (defined($header{'host'})) { - if ($header{'host'} =~ /^([^:]+):([0-9]+)$/) { $host = $1; $port = $2; } - else { $host = $header{'host'}; } - } -undef(%in); -if ($page =~ /^([^\?]+)\?(.*)$/) { - # There is some query string information - $page = $1; - $querystring = $2; - if ($querystring !~ /=/) { - $queryargs = $querystring; - $queryargs =~ s/\+/ /g; - $queryargs =~ s/%(..)/pack("c",hex($1))/ge; - $querystring = ""; - } - else { - # Parse query-string parameters - local @in = split(/\&/, $querystring); - foreach $i (@in) { - local ($k, $v) = split(/=/, $i, 2); - $k =~ s/\+/ /g; $k =~ s/%(..)/pack("c",hex($1))/ge; - $v =~ s/\+/ /g; $v =~ s/%(..)/pack("c",hex($1))/ge; - $in{$k} = $v; - } - } - } -$posted_data = undef; -if ($method eq 'POST' && - $header{'content-type'} eq 'application/x-www-form-urlencoded') { - # Read in posted query string information - $clen = $header{"content-length"}; - while(length($posted_data) < $clen) { - $buf = &read_data($clen - length($posted_data)); - if (!length($buf)) { - &http_error(500, "Failed to read POST request"); - } - $posted_data .= $buf; - } - local @in = split(/\&/, $posted_data); - foreach $i (@in) { - local ($k, $v) = split(/=/, $i, 2); - $k =~ s/\+/ /g; $k =~ s/%(..)/pack("c",hex($1))/ge; - $v =~ s/\+/ /g; $v =~ s/%(..)/pack("c",hex($1))/ge; - $in{$k} = $v; - } - } - -# replace %XX sequences in page -$page =~ s/%(..)/pack("c",hex($1))/ge; - -# check address against access list -if (@deny && &ip_match($acptip, $localip, @deny) || - @allow && !&ip_match($acptip, $localip, @allow)) { - &http_error(403, "Access denied for $acptip"); - return 0; - } - -if ($use_libwrap) { - # Check address with TCP-wrappers - if (!hosts_ctl("miniserv", STRING_UNKNOWN, $acptip, STRING_UNKNOWN)) { - &http_error(403, "Access denied for $acptip"); - return 0; - } - } - -# check for the logout flag file, and if existant deny authentication -if ($config{'logout'} && -r $config{'logout'}.$in{'miniserv_logout_id'}) { - $deny_authentication++; - open(LOGOUT, $config{'logout'}.$in{'miniserv_logout_id'}); - chop($count = <LOGOUT>); - close(LOGOUT); - $count--; - if ($count > 0) { - open(LOGOUT, ">$config{'logout'}$in{'miniserv_logout_id'}"); - print LOGOUT "$count\n"; - close(LOGOUT); - } - else { - unlink($config{'logout'}.$in{'miniserv_logout_id'}); - } - } - -# Check for password if needed -if (%users) { - $validated = 0; - $blocked = 0; - - # Session authentication is never used for connections by - # another miniserv server - if ($header{'user-agent'} =~ /miniserv/i) { - $config{'session'} = 0; - } - - # check for SSL authentication - if ($use_ssl && $verified_client) { - $peername = Net::SSLeay::X509_NAME_oneline( - Net::SSLeay::X509_get_subject_name( - Net::SSLeay::get_peer_certificate( - $ssl_con))); - foreach $u (keys %certs) { - if ($certs{$u} eq $peername) { - $authuser = $u; - $validated = 2; - last; - } - } - } - - # Check for normal HTTP authentication - if (!$validated && !$deny_authentication && !$config{'session'} && - $header{authorization} =~ /^basic\s+(\S+)$/i) { - # authorization given.. - ($authuser, $authpass) = split(/:/, &b64decode($1)); - $validated = &validate_user($authuser, $authpass); - - if ($config{'passdelay'} && !$config{'inetd'}) { - # check with main process for delay - print $PASSINw "delay $authuser $acptip $validated\n"; - <$PASSOUTr> =~ /(\d+) (\d+)/; - $blocked = $2; - sleep($1); - } - } - - # Check for new session validation - if ($config{'session'} && !$deny_authentication && $page eq $config{'session_login'}) { - local $ok = &validate_user($in{'user'}, $in{'pass'}); - - # check if the test cookie is set - if ($header{'cookie'} !~ /testing=1/ && $in{'user'}) { - &http_error(500, "No cookies", - "Your browser does not support cookies, ". - "which are required for Webmin to work in ". - "session authentication mode"); - } - - # check with main process for delay - if ($config{'passdelay'} && $in{'user'}) { - print $PASSINw "delay $in{'user'} $acptip $ok\n"; - <$PASSOUTr> =~ /(\d+) (\d+)/; - $blocked = $2; - sleep($1); - } - - if ($ok) { - # Logged in OK! Tell the main process about the new SID - local $sid = time(); - local $mul = 1; - foreach $c (split(//, crypt($in{'pass'}, substr($$, -2)))) { - $sid += ord($c) * $mul; - $mul *= 3; - } - print $PASSINw "new $sid $in{'user'}\n"; - - # Set cookie and redirect - &write_data("HTTP/1.0 302 Moved Temporarily\r\n"); - &write_data("Date: $datestr\r\n"); - &write_data("Server: $config{'server'}\r\n"); - $portstr = $port == 80 && !$use_ssl ? "" : - $port == 443 && $use_ssl ? "" : ":$port"; - $prot = $use_ssl ? "https" : "http"; - if ($in{'save'}) { - &write_data("Set-Cookie: sid=$sid; path=/; expires=\"Fri, 1-Jan-2038 00:00:01\"\r\n"); - } - else { - &write_data("Set-Cookie: sid=$sid; path=/\r\n"); - } - &write_data("Location: $prot://$host$portstr$in{'page'}\r\n"); - &write_keep_alive(0); - &write_data("\r\n"); - &log_request($acpthost, $authuser, $reqline, 302, 0); - return 0; - } - elsif ($in{'logout'} && $header{'cookie'} =~ /sid=(\d+)/) { - # Logout clicked .. remove the session - print $PASSINw "delete $1\n"; - local $dummy = <$PASSINr>; - $logout = 1; - $already_session_id = undef; - } - else { - # Login failed .. display the form again - $failed_user = $in{'user'}; - $request_uri = $in{'page'}; - $already_session_id = undef; - } - } - - # Check for an existing session - if ($config{'session'} && !$validated) { - if ($already_session_id) { - $session_id = $already_session_id; - $authuser = $already_authuser; - $validated = 1; - } - elsif (!$deny_authentication && $header{'cookie'} =~ /sid=(\d+)/) { - $session_id = $1; - print $PASSINw "verify $session_id\n"; - <$PASSOUTr> =~ /(\d+)\s+(\S+)/; - if ($1 == 2) { - # Valid session continuation - $validated = 1; - $authuser = $2; - $already_session_id = $session_id; - $already_authuser = $authuser; - } - elsif ($1 == 1) { - # Session timed out - $timed_out = $2; - } - else { - # Invalid session ID .. don't set verified - } - } - } - - # Check for local authentication - if ($localauth_user) { - if (defined($users{$localauth_user})) { - $validated = 1; - $authuser = $localauth_user; - } - else { - $localauth_user = undef; - } - } - - if (!$validated) { - if ($blocked == 0) { - # No password given.. ask - if ($config{'session'}) { - # Force CGI for session login - $validated = 1; - if ($logout) { - $querystring .= "&logout=1&page=/"; - } - else { - $querystring = "page=".&urlize($request_uri); - } - $querystring .= "&failed=$failed_user" if ($failed_user); - $querystring .= "&timed_out=$timed_out" if ($timed_out); - $queryargs = ""; - $page = $config{'session_login'}; - } - else { - # Ask for login with HTTP authentication - &write_data("HTTP/1.0 401 Unauthorized\r\n"); - &write_data("Date: $datestr\r\n"); - &write_data("Server: $config{'server'}\r\n"); - &write_data("WWW-authenticate: Basic ". - "realm=\"$config{'realm'}\"\r\n"); - &write_keep_alive(0); - &write_data("Content-type: text/html\r\n"); - &write_data("\r\n"); - &reset_byte_count(); - &write_data("<html>\n"); - &write_data("<head><title>Unauthorized</title></head>\n"); - &write_data("<body><h1>Unauthorized</h1>\n"); - &write_data("A password is required to access this\n"); - &write_data("web server. Please try again. <p>\n"); - &write_data("</body></html>\n"); - &log_request($acpthost, undef, $reqline, 401, &byte_count()); - return 0; - } - } - else { - # when the host has been blocked, give it an error message - &http_error(403, "Access denied for $acptip. The host has been blocked " - ."because of too many authentication failures."); - } - } - - # Check per-user IP access control - if ($deny{$authuser} && &ip_match($acptip, $localip, @{$deny{$authuser}}) || - $allow{$authuser} && !&ip_match($acptip, $localip, @{$allow{$authuser}})) { - &http_error(403, "Access denied for $acptip"); - return 0; - } - } - -# Figure out what kind of page was requested -rerun: -$simple = &simplify_path($page, $bogus); -$simple =~ s/[\000-\037]//g; -if ($bogus) { - &http_error(400, "Invalid path"); - } -undef($full); -if ($config{'preroot'}) { - # Look in the template root directory first - $is_directory = 1; - $sofar = ""; - $full = $config{"preroot"} . $sofar; - $scriptname = $simple; - foreach $b (split(/\//, $simple)) { - if ($b ne "") { $sofar .= "/$b"; } - $full = $config{"preroot"} . $sofar; - @st = stat($full); - if (!@st) { undef($full); last; } - - # Check if this is a directory - if (-d $full) { - # It is.. go on parsing - $is_directory = 1; - next; - } - else { $is_directory = 0; } - - # Check if this is a CGI program - if (&get_type($full) eq "internal/cgi") { - $pathinfo = substr($simple, length($sofar)); - $pathinfo .= "/" if ($page =~ /\/$/); - $scriptname = $sofar; - last; - } - } - if ($full) { - if ($sofar eq '') { - $cgi_pwd = $config{'root'}; - } - else { - "$config{'root'}$sofar" =~ /^(.*\/)[^\/]+$/; - $cgi_pwd = $1; - } - if ($is_directory) { - # Check for index files in the directory - foreach $idx (split(/\s+/, $config{"index_docs"})) { - $idxfull = "$full/$idx"; - if (-r $idxfull && !(-d $idxfull)) { - $full = $idxfull; - $is_directory = 0; - $scriptname .= "/" - if ($scriptname ne "/"); - last; - } - } - } - } - } -if (!$full || $is_directory) { - $sofar = ""; - $full = $config{"root"} . $sofar; - $scriptname = $simple; - foreach $b (split(/\//, $simple)) { - if ($b ne "") { $sofar .= "/$b"; } - $full = $config{"root"} . $sofar; - @st = stat($full); - if (!@st) { &http_error(404, "File not found"); } - - # Check if this is a directory - if (-d $full) { - # It is.. go on parsing - next; - } - - # Check if this is a CGI program - if (&get_type($full) eq "internal/cgi") { - $pathinfo = substr($simple, length($sofar)); - $pathinfo .= "/" if ($page =~ /\/$/); - $scriptname = $sofar; - last; - } - } - $full =~ /^(.*\/)[^\/]+$/; $cgi_pwd = $1; - } - -# check filename against denyfile regexp -local $denyfile = $config{'denyfile'}; -if ($denyfile && $full =~ /$denyfile/) { - &http_error(403, "Access denied to $page"); - return 0; - } - -# Reached the end of the path OK.. see what we've got -if (-d $full) { - # See if the URL ends with a / as it should - if ($page !~ /\/$/) { - # It doesn't.. redirect - &write_data("HTTP/1.0 302 Moved Temporarily\r\n"); - $portstr = $port == 80 && !$use_ssl ? "" : - $port == 443 && $use_ssl ? "" : ":$port"; - &write_data("Date: $datestr\r\n"); - &write_data("Server: $config{server}\r\n"); - $prot = $use_ssl ? "https" : "http"; - &write_data("Location: $prot://$host$portstr$page/\r\n"); - &write_keep_alive(0); - &write_data("\r\n"); - &log_request($acpthost, $authuser, $reqline, 302, 0); - return 0; - } - # A directory.. check for index files - foreach $idx (split(/\s+/, $config{"index_docs"})) { - $idxfull = "$full/$idx"; - if (-r $idxfull && !(-d $idxfull)) { - $cgi_pwd = $full; - $full = $idxfull; - $scriptname .= "/" if ($scriptname ne "/"); - last; - } - } - } -if (-d $full) { - # This is definately a directory.. list it - &write_data("HTTP/1.0 $ok_code $ok_message\r\n"); - &write_data("Date: $datestr\r\n"); - &write_data("Server: $config{server}\r\n"); - &write_data("Content-type: text/html\r\n"); - &write_keep_alive(0); - &write_data("\r\n"); - &reset_byte_count(); - &write_data("<h1>Index of $simple</h1>\n"); - &write_data("<pre>\n"); - &write_data(sprintf "%-35.35s %-20.20s %-10.10s\n", - "Name", "Last Modified", "Size"); - &write_data("<hr>\n"); - opendir(DIR, $full); - while($df = readdir(DIR)) { - if ($df =~ /^\./) { next; } - (@stbuf = stat("$full/$df")) || next; - if (-d "$full/$df") { $df .= "/"; } - @tm = localtime($stbuf[9]); - $fdate = sprintf "%2.2d/%2.2d/%4.4d %2.2d:%2.2d:%2.2d", - $tm[3],$tm[4]+1,$tm[5]+1900, - $tm[0],$tm[1],$tm[2]; - $len = length($df); $rest = " "x(35-$len); - &write_data(sprintf - "<a href=\"%s\">%-${len}.${len}s</a>$rest %-20.20s %-10.10s\n", - $df, $df, $fdate, $stbuf[7]); - } - closedir(DIR); - &log_request($acpthost, $authuser, $reqline, $ok_code, &byte_count()); - return 0; - } - -# CGI or normal file -local $rv; -if (&get_type($full) eq "internal/cgi") { - # A CGI program to execute - $envtz = $ENV{"TZ"}; - $envuser = $ENV{"USER"}; - $envpath = $ENV{"PATH"}; - foreach (keys %ENV) { delete($ENV{$_}); } - $ENV{"PATH"} = $envpath if ($envpath); - $ENV{"TZ"} = $envtz if ($envtz); - $ENV{"USER"} = $envuser if ($envuser); - $ENV{"HOME"} = $user_homedir; - $ENV{"SERVER_SOFTWARE"} = $config{"server"}; - $ENV{"SERVER_NAME"} = $host; - $ENV{"SERVER_ADMIN"} = $config{"email"}; - $ENV{"SERVER_ROOT"} = $config{"root"}; - $ENV{"SERVER_PORT"} = $port; - $ENV{"REMOTE_HOST"} = $acpthost; - $ENV{"REMOTE_ADDR"} = $acptip; - $ENV{"REMOTE_USER"} = $authuser if (defined($authuser)); - $ENV{"SSL_USER"} = $peername if ($validated == 2); - $ENV{"DOCUMENT_ROOT"} = $config{"root"}; - $ENV{"GATEWAY_INTERFACE"} = "CGI/1.1"; - $ENV{"SERVER_PROTOCOL"} = "HTTP/1.0"; - $ENV{"REQUEST_METHOD"} = $method; - $ENV{"SCRIPT_NAME"} = $scriptname; - $ENV{"REQUEST_URI"} = $request_uri; - $ENV{"PATH_INFO"} = $pathinfo; - $ENV{"PATH_TRANSLATED"} = "$config{root}/$pathinfo"; - $ENV{"QUERY_STRING"} = $querystring; - $ENV{"MINISERV_CONFIG"} = $conf; - $ENV{"HTTPS"} = "ON" if ($use_ssl); - $ENV{"SESSION_ID"} = $session_id if ($session_id); - $ENV{"LOCAL_USER"} = $localauth_user if ($localauth_user); - if (defined($header{"content-length"})) { - $ENV{"CONTENT_LENGTH"} = $header{"content-length"}; - } - if (defined($header{"content-type"})) { - $ENV{"CONTENT_TYPE"} = $header{"content-type"}; - } - foreach $h (keys %header) { - ($hname = $h) =~ tr/a-z/A-Z/; - $hname =~ s/\-/_/g; - $ENV{"HTTP_$hname"} = $header{$h}; - } - $ENV{"PWD"} = $cgi_pwd; - foreach $k (keys %config) { - if ($k =~ /^env_(\S+)$/) { - $ENV{$1} = $config{$k}; - } - } - delete($ENV{'HTTP_AUTHORIZATION'}); - $ENV{'HTTP_COOKIE'} =~ s/;?\s*sid=(\d+)//; - - # Check if the CGI can be handled internally - open(CGI, $full); - local $first = <CGI>; - close(CGI); - $first =~ s/[#!\r\n]//g; - $nph_script = ($full =~ /\/nph-([^\/]+)$/); - if (!$config{'forkcgis'} && $first eq $perl_path && $] >= 5.004) { - # setup environment for eval - chdir($ENV{"PWD"}); - @ARGV = split(/\s+/, $queryargs); - $0 = $full; - if ($posted_data) { - # Already read the post input - $postinput = $posted_data; - } - elsif ($method eq "POST") { - $clen = $header{"content-length"}; - while(length($postinput) < $clen) { - $buf = &read_data($clen - length($postinput)); - if (!length($buf)) { - &http_error(500, "Failed to read ". - "POST request"); - } - $postinput .= $buf; - } - } - $SIG{'CHLD'} = 'DEFAULT'; - eval { - # Have SOCK closed if the perl exec's something - use Fcntl; - fcntl(SOCK, F_SETFD, FD_CLOEXEC); - }; - shutdown(SOCK, 0); - - if ($config{'log'}) { - open(MINISERVLOG, ">>$config{'logfile'}"); - chmod(0600, $config{'logfile'}); - } - $doing_eval = 1; - eval { - package main; - tie(*STDOUT, 'miniserv'); - tie(*STDIN, 'miniserv'); - do $miniserv::full; - die $@ if ($@); - }; - $doing_eval = 0; - if ($@) { - # Error in perl! - &http_error(500, "Perl execution failed", $@); - } - elsif (!$doneheaders && !$nph_script) { - &http_error(500, "Missing Headers"); - } - #close(SOCK); - $rv = 0; - } - else { - # fork the process that actually executes the CGI - pipe(CGIINr, CGIINw); - pipe(CGIOUTr, CGIOUTw); - pipe(CGIERRr, CGIERRw); - if (!($cgipid = fork())) { - chdir($ENV{"PWD"}); - close(SOCK); - open(STDIN, "<&CGIINr"); - open(STDOUT, ">&CGIOUTw"); - open(STDERR, ">&CGIERRw"); - close(CGIINw); close(CGIOUTr); close(CGIERRr); - exec($full, split(/\s+/, $queryargs)); - print STDERR "Failed to exec $full : $!\n"; - exit; - } - close(CGIINr); close(CGIOUTw); close(CGIERRw); - - # send post data - if ($posted_data) { - # already read the posted data - print CGIINw $posted_data; - } - elsif ($method eq "POST") { - $got = 0; $clen = $header{"content-length"}; - while($got < $clen) { - $buf = &read_data($clen-$got); - if (!length($buf)) { - kill('TERM', $cgipid); - &http_error(500, "Failed to read ". - "POST request"); - } - $got += length($buf); - print CGIINw $buf; - } - } - close(CGIINw); - shutdown(SOCK, 0); - - if (!$nph_script) { - # read back cgi headers - select(CGIOUTr); $|=1; select(STDOUT); - $got_blank = 0; - while(1) { - $line = <CGIOUTr>; - $line =~ s/\r|\n//g; - if ($line eq "") { - if ($got_blank || %cgiheader) { last; } - $got_blank++; - next; - } - ($line =~ /^(\S+):\s+(.*)$/) || - &http_error(500, "Bad Header", - &read_errors(CGIERRr)); - $cgiheader{lc($1)} = $2; - } - if ($cgiheader{"location"}) { - &write_data("HTTP/1.0 302 Moved Temporarily\r\n"); - &write_data("Date: $datestr\r\n"); - &write_data("Server: $config{'server'}\r\n"); - &write_keep_alive(0); - # ignore the rest of the output. This is a hack, but - # is necessary for IE in some cases :( - close(CGIOUTr); close(CGIERRr); - } - elsif ($cgiheader{"content-type"} eq "") { - &http_error(500, "Missing Content-Type Header", - &read_errors(CGIERRr)); - } - else { - &write_data("HTTP/1.0 $ok_code $ok_message\r\n"); - &write_data("Date: $datestr\r\n"); - &write_data("Server: $config{'server'}\r\n"); - &write_keep_alive(0); - } - foreach $h (keys %cgiheader) { - &write_data("$h: $cgiheader{$h}\r\n"); - } - &write_data("\r\n"); - } - &reset_byte_count(); - while($line = <CGIOUTr>) { - &write_data($line); - } - close(CGIOUTr); close(CGIERRr); - $rv = 0; - } - } -else { - # A file to output - local @st = stat($full); - open(FILE, $full) || &http_error(404, "Failed to open file"); - &write_data("HTTP/1.0 $ok_code $ok_message\r\n"); - &write_data("Date: $datestr\r\n"); - &write_data("Server: $config{server}\r\n"); - &write_data("Content-type: ".&get_type($full)."\r\n"); - &write_data("Content-length: $st[7]\r\n"); - &write_data("Last-Modified: ".&http_date($st[9])."\r\n"); - &write_keep_alive(); - &write_data("\r\n"); - &reset_byte_count(); - while(read(FILE, $buf, 1024) > 0) { - &write_data($buf); - } - close(FILE); - $rv = &check_keep_alive(); - } - -# log the request -&log_request($acpthost, $authuser, $reqline, - $cgiheader{"location"} ? "302" : $ok_code, &byte_count()); -return $rv; -} - -# http_error(code, message, body, [dontexit]) -sub http_error -{ -close(CGIOUT); -local $eh = $error_handler_recurse ? undef : - $config{"error_handler_$_[0]"} ? $config{"error_handler_$_[0]"} : - $config{'error_handler'} ? $config{'error_handler'} : undef; -if ($eh) { - # Call a CGI program for the error - $page = "/$eh"; - $querystring = "code=$_[0]&message=".&urlize($_[1]). - "&body=".&urlize($_[2]); - $error_handler_recurse++; - $ok_code = $_[0]; - $ok_message = $_[1]; - goto rerun; - } -else { - # Use the standard error message display - &write_data("HTTP/1.0 $_[0] $_[1]\r\n"); - &write_data("Server: $config{server}\r\n"); - &write_data("Date: $datestr\r\n"); - &write_data("Content-type: text/html\r\n"); - &write_keep_alive(0); - &write_data("\r\n"); - &reset_byte_count(); - &write_data("<h1>Error - $_[1]</h1>\n"); - if ($_[2]) { - &write_data("<pre>$_[2]</pre>\n"); - } - } -&log_request($acpthost, $authuser, $reqline, $_[0], &byte_count()) - if ($reqline); -shutdown(SOCK, 1); -exit if (!$_[3]); -} - -sub get_type -{ -if ($_[0] =~ /\.([A-z0-9]+)$/) { - $t = $mime{$1}; - if ($t ne "") { - return $t; - } - } -return "text/plain"; -} - -# simplify_path(path, bogus) -# Given a path, maybe containing stuff like ".." and "." convert it to a -# clean, absolute form. -sub simplify_path -{ -local($dir, @bits, @fixedbits, $b); -$dir = $_[0]; -$dir =~ s/^\/+//g; -$dir =~ s/\/+$//g; -@bits = split(/\/+/, $dir); -@fixedbits = (); -$_[1] = 0; -foreach $b (@bits) { - if ($b eq ".") { - # Do nothing.. - } - elsif ($b eq "..") { - # Remove last dir - if (scalar(@fixedbits) == 0) { - $_[1] = 1; - return "/"; - } - pop(@fixedbits); - } - else { - # Add dir to list - push(@fixedbits, $b); - } - } -return "/" . join('/', @fixedbits); -} - -# b64decode(string) -# Converts a string from base64 format to normal -sub b64decode -{ - local($str) = $_[0]; - local($res); - $str =~ tr|A-Za-z0-9+=/||cd; - $str =~ s/=+$//; - $str =~ tr|A-Za-z0-9+/| -_|; - while ($str =~ /(.{1,60})/gs) { - my $len = chr(32 + length($1)*3/4); - $res .= unpack("u", $len . $1 ); - } - return $res; -} - -# ip_match(remoteip, localip, [match]+) -# Checks an IP address against a list of IPs, networks and networks/masks -sub ip_match -{ -local(@io, @mo, @ms, $i, $j); -@io = split(/\./, $_[0]); -local $hn; -if (!defined($hn = $ip_match_cache{$_[0]})) { - $hn = gethostbyaddr(inet_aton($_[0]), AF_INET); - $hn = "" if ((&to_ipaddress($hn))[0] ne $_[0]); - $ip_match_cache{$_[0]} = $hn; - } -for($i=2; $i<@_; $i++) { - local $mismatch = 0; - if ($_[$i] =~ /^(\S+)\/(\S+)$/) { - # Compare with network/mask - @mo = split(/\./, $1); @ms = split(/\./, $2); - for($j=0; $j<4; $j++) { - if ((int($io[$j]) & int($ms[$j])) != int($mo[$j])) { - $mismatch = 1; - } - } - } - elsif ($_[$i] =~ /^\*(\S+)$/) { - # Compare with hostname regexp - $mismatch = 1 if ($hn !~ /$1$/); - } - elsif ($_[$i] eq 'LOCAL') { - # Compare with local network - local @lo = split(/\./, $_[1]); - if ($lo[0] < 128) { - $mismatch = 1 if ($lo[0] != $io[0]); - } - elsif ($lo[0] < 192) { - $mismatch = 1 if ($lo[0] != $io[0] || - $lo[1] != $io[1]); - } - else { - $mismatch = 1 if ($lo[0] != $io[0] || - $lo[1] != $io[1] || - $lo[2] != $io[2]); - } - } - else { - # Compare with IP or network - @mo = split(/\./, $_[$i]); - while(@mo && !$mo[$#mo]) { pop(@mo); } - for($j=0; $j<@mo; $j++) { - if ($mo[$j] != $io[$j]) { - $mismatch = 1; - } - } - } - return 1 if (!$mismatch); - } -return 0; -} - -# restart_miniserv() -# Called when a SIGHUP is received to restart the web server. This is done -# by exec()ing perl with the same command line as was originally used -sub restart_miniserv -{ -close(SOCK); close(MAIN); -foreach $p (@passin) { close($p); } -foreach $p (@passout) { close($p); } -if ($logclearer) { kill('TERM', $logclearer); } -exec($perl_path, $miniserv_path, @miniserv_argv); -die "Failed to restart miniserv with $perl_path $miniserv_path"; -} - -sub trigger_restart -{ -$need_restart = 1; -} - -sub to_ipaddress -{ -local (@rv, $i); -foreach $i (@_) { - if ($i =~ /(\S+)\/(\S+)/ || $i =~ /^\*\S+$/ || - $i eq 'LOCAL') { push(@rv, $i); } - else { push(@rv, join('.', unpack("CCCC", inet_aton($i)))); } - } -return @rv; -} - -# read_line() -# Reads one line from SOCK or SSL -sub read_line -{ -local($idx, $more, $rv); -if ($use_ssl) { - while(($idx = index($read_buffer, "\n")) < 0) { - # need to read more.. - if (!($more = Net::SSLeay::read($ssl_con))) { - # end of the data - $rv = $read_buffer; - undef($read_buffer); - return $rv; - } - $read_buffer .= $more; - } - $rv = substr($read_buffer, 0, $idx+1); - $read_buffer = substr($read_buffer, $idx+1); - return $rv; - } -else { return <SOCK>; } -} - -# read_data(length) -# Reads up to some amount of data from SOCK or the SSL connection -sub read_data -{ -if ($use_ssl) { - local($rv); - if (length($read_buffer)) { - $rv = $read_buffer; - undef($read_buffer); - return $rv; - } - else { - return Net::SSLeay::read($ssl_con, $_[0]); - } - } -else { - local $buf; - read(SOCK, $buf, $_[0]) || return undef; - return $buf; - } -} - -# write_data(data) -# Writes a string to SOCK or the SSL connection -sub write_data -{ -if ($use_ssl) { - Net::SSLeay::write($ssl_con, $_[0]); - } -else { - syswrite(SOCK, $_[0], length($_[0])); - } -$write_data_count += length($_[0]); -} - -# reset_byte_count() -sub reset_byte_count { $write_data_count = 0; } - -# byte_count() -sub byte_count { return $write_data_count; } - -# log_request(hostname, user, request, code, bytes) -sub log_request -{ -if ($config{'log'}) { - local(@tm, $dstr, $user, $ident, $headers); - if ($config{'logident'}) { - # add support for rfc1413 identity checking here - } - else { $ident = "-"; } - @tm = localtime(time()); - $dstr = sprintf "%2.2d/%s/%4.4d:%2.2d:%2.2d:%2.2d %s", - $tm[3], $make_date_marr[$tm[4]], $tm[5]+1900, - $tm[2], $tm[1], $tm[0], $timezone; - $user = $_[1] ? $_[1] : "-"; - if (fileno(MINISERVLOG)) { - seek(MINISERVLOG, 0, 2); - } - else { - open(MINISERVLOG, ">>$config{'logfile'}"); - chmod(0600, $config{'logfile'}); - } - foreach $h (split(/\s+/, $config{'logheaders'})) { - $headers .= " $h=\"$header{$h}\""; - } - print MINISERVLOG "$_[0] $ident $user [$dstr] \"$_[2]\" ", - "$_[3] $_[4]$headers\n"; - close(MINISERVLOG); - } -} - -# read_errors(handle) -# Read and return all input from some filehandle -sub read_errors -{ -local($fh, $_, $rv); -$fh = $_[0]; -while(<$fh>) { $rv .= $_; } -return $rv; -} - -sub write_keep_alive -{ -local $mode; -if (@_) { $mode = $_[0]; } -else { $mode = &check_keep_alive(); } -&write_data("Connection: ".($mode ? "Keep-Alive" : "close")."\r\n"); -} - -sub check_keep_alive -{ -return $header{'connection'} =~ /keep-alive/i; -} - -sub term_handler -{ -if (@childpids) { - kill('TERM', @childpids); - } -exit(1); -} - -sub http_date -{ -local @tm = gmtime($_[0]); -return sprintf "%s, %d %s %d %2.2d:%2.2d:%2.2d GMT", - $weekday[$tm[6]], $tm[3], $month[$tm[4]], $tm[5]+1900, - $tm[2], $tm[1], $tm[0]; -} - -sub TIEHANDLE -{ -my $i; bless \$i, shift; -} - -sub WRITE -{ -$r = shift; -my($buf,$len,$offset) = @_; -&write_to_sock(substr($buf, $offset, $len)); -} - -sub PRINT -{ -$r = shift; -$$r++; -&write_to_sock(@_); -} - -sub PRINTF -{ -shift; -my $fmt = shift; -&write_to_sock(sprintf $fmt, @_); -} - -sub READ -{ -$r = shift; -substr($_[0], $_[2], $_[1]) = substr($postinput, $postpos, $_[1]); -$postpos += $_[1]; -} - -sub OPEN -{ -print STDERR "open() called - should never happen!\n"; -} - -sub READLINE -{ -if ($postpos >= length($postinput)) { - return undef; - } -local $idx = index($postinput, "\n", $postpos); -if ($idx < 0) { - local $rv = substr($postinput, $postpos); - $postpos = length($postinput); - return $rv; - } -else { - local $rv = substr($postinput, $postpos, $idx-$postpos+1); - $postpos = $idx+1; - return $rv; - } -} - -sub GETC -{ -return $postpos >= length($postinput) ? undef - : substr($postinput, $postpos++, 1); -} - -sub CLOSE { } - -sub DESTROY { } - -# write_to_sock(data, ...) -sub write_to_sock -{ -foreach $d (@_) { - if ($doneheaders || $miniserv::nph_script) { - &write_data($d); - } - else { - $headers .= $d; - while(!$doneheaders && $headers =~ s/^(.*)(\r)?\n//) { - if ($1 =~ /^(\S+):\s+(.*)$/) { - $cgiheader{lc($1)} = $2; - } - elsif ($1 !~ /\S/) { - $doneheaders++; - } - else { - &http_error(500, "Bad Header"); - } - } - if ($doneheaders) { - if ($cgiheader{"location"}) { - &write_data( - "HTTP/1.0 302 Moved Temporarily\r\n"); - &write_data("Date: $datestr\r\n"); - &write_data("Server: $config{server}\r\n"); - &write_keep_alive(0); - } - elsif ($cgiheader{"content-type"} eq "") { - &http_error(500, "Missing Content-Type Header"); - } - else { - &write_data("HTTP/1.0 $ok_code $ok_message\r\n"); - &write_data("Date: $datestr\r\n"); - &write_data("Server: $config{server}\r\n"); - &write_keep_alive(0); - } - foreach $h (keys %cgiheader) { - &write_data("$h: $cgiheader{$h}\r\n"); - } - &write_data("\r\n"); - &reset_byte_count(); - &write_data($headers); - } - } - } -} - -sub verify_client -{ -local $cert = Net::SSLeay::X509_STORE_CTX_get_current_cert($_[1]); -if ($cert) { - local $errnum = Net::SSLeay::X509_STORE_CTX_get_error($_[1]); - $verified_client = 1 if (!$errnum); - } -return 1; -} - -sub END -{ -if ($doing_eval) { - # A CGI program called exit! This is a horrible hack to - # finish up before really exiting - close(SOCK); - &log_request($acpthost, $authuser, $reqline, - $cgiheader{"location"} ? "302" : $ok_code, &byte_count()); - } -} - -# urlize -# Convert a string to a form ok for putting in a URL -sub urlize { - local($tmp, $tmp2, $c); - $tmp = $_[0]; - $tmp2 = ""; - while(($c = chop($tmp)) ne "") { - if ($c !~ /[A-z0-9]/) { - $c = sprintf("%%%2.2X", ord($c)); - } - $tmp2 = $c . $tmp2; - } - return $tmp2; -} - -# validate_user(username, password) -sub validate_user -{ -return 0 if (!$_[0] || !$users{$_[0]}); -if ($users{$_[0]} eq 'x' && $use_pam) { - $pam_username = $_[0]; - $pam_password = $_[1]; - local $pamh = new Authen::PAM("miniserv", $pam_username, \&pam_conv_func); - if (!ref($pamh)) { - print STDERR "PAM init failed : $pamh\n"; - return 0; - } - local $pam_ret = $pamh->pam_authenticate(); - return $pam_ret == PAM_SUCCESS ? 1 : 0; - } -else { - return $users{$_[0]} eq crypt($_[1], $users{$_[0]}) ? 1 : 0; - } -} - -# the PAM conversation function for interactive logins -sub pam_conv_func -{ -my @res; -while ( @_ ) { - my $code = shift; - my $msg = shift; - my $ans = ""; - - $ans = $pam_username if ($code == PAM_PROMPT_ECHO_ON() ); - $ans = $pam_password if ($code == PAM_PROMPT_ECHO_OFF() ); - - push @res, PAM_SUCCESS(); - push @res, $ans; - } -push @res, PAM_SUCCESS(); -return @res; -} - |