perlmail-sendmail

   1 #! /usr/bin/perl
   2 #
   3 # $Id$
   4
   5 use vars qw($VERSION);
   6 $VERSION=do { my @r=(q$Revision$=~/\d+/g); sprintf "%d.".("%03d"x$#r),@r; };
   7 use strict;
   8 use warnings;
   9
  10 use File::Basename;
  11 BEGIN {
  12         use lib $ENV{"PERLMAIL_BASEDIR"} || File::Basename::dirname($0);
  13         use PerlMail::Config;
  14         use PerlMail::Lib;
  15         }
  16
  17 require Getopt::Long;
  18 use POSIX qw(WIFEXITED WEXITSTATUS WIFSIGNALED WTERMSIG WIFSTOPPED WSTOPSIG);
  19 require MIME::Head;     # inherits Mail::Header
  20 require Mail::Address;
  21
  22
  23 sub sendmail_show { return "\"$sendmail_orig\" ".join(",",map("\"$_\"",@ARGV)); }
  24
  25 sub sendmail_orig_exec
  26 {
  27         exec {$sendmail_orig} $0,@ARGV or die "exec(".sendmail_show()."): $!";
  28         die "NOTREACHED";
  29 }
  30
  31 Getopt::Long::Configure(
  32                 "no_ignorecase",
  33                 "no_getopt_compat",
  34                 "bundling",
  35                 # FIXME: workaround: 'unknown options' are considered the same as 'arguments'
  36                 # None of ($REQUIRE_ORDER, $PERMUTE, $RETURN_IN_ORDER) can help us.
  37                 # No preprocessing possible as it is hard to find option arguments.
  38                 "permute",
  39                 "pass_through",
  40                 );
  41
  42 my $opt_b;
  43 my $opt_Q;
  44 my $opt_q;
  45 my $opt_t;
  46 our $opt_f;
  47 our $opt_F;     # from PerlMail::Config;
  48 my $opt_perlmail_dry_run;
  49 my @ARGV_save=@ARGV;    # for non-bm mode
  50 die if !Getopt::Long::GetOptions(
  51                 "b=s"              ,\$opt_b,
  52                 "Q:s"              ,\$opt_Q,
  53                 "q:s"              ,\$opt_q,
  54                 "t"                ,\$opt_t,
  55                 "f=s"              ,\$opt_f,
  56                 "F=s"              ,\$opt_F,
  57                 "perlmail-dry-run+",\$opt_perlmail_dry_run,
  58                 );
  59 if (0
  60                 # RedHat sendmail-8.12.5-7/sendmail/main.c/\QDo a quick prescan of the argument list.\E
  61                 || grep({ File::Basename::basename($0) eq $_; } "newaliases","mailq","smtpd","hoststat","purgestat")
  62                 # -bm: Deliver mail in the usual way (default).
  63                 || (defined($opt_b) && $opt_b ne "m")
  64                 || defined $opt_q       # MD_QUEUERUN
  65                 || defined $opt_Q       # MD_QUEUERUN
  66                 ) {
  67         @ARGV=@ARGV_save;
  68         sendmail_orig_exec();
  69         die "NOTREACHED";
  70         }
  71
  72 # RedHat sendmail-8.9.3-20/src/main.c/main()/\Qif (FullName != NULL)\E
  73 #   for $opt_F is implemented by Mail::Address in our &FromAddress
  74
  75 my $head=MIME::Head->new(\*STDIN);
  76 # options leave in @ARGV, addresses to @addr:
  77 my @args=@ARGV; # temporary
  78 @ARGV=();       # options
  79 my @addr=();    # addresses
  80 push @{(/^-./ ? \@ARGV : \@addr)},$_ for (@args);
  81 if ($opt_t) {
  82         for my $addrobj (map({ Mail::Address->parse($_); } map({ ($head->get($_)); } @h_rcpt))) {
  83                 if (!$addrobj->address()) {
  84                         # bogus, shouldn't happen
  85                         warn "->address() not found in \"".$addrobj->format()."\"";
  86                         next;
  87                 }
  88                 push @addr,$addrobj;
  89                 }
  90         }
  91
  92 sub matches
  93 {
  94         return
  95 }
  96
  97 my $from_headername;
  98 {
  99         my $muttrc_From=parseone(scalar muttrc_get("from"));    # may get undef()!; parseone() may be redundant
 100         $muttrc_From=$muttrc_From->address() if $muttrc_From;
 101         $opt_f=undef() if defined($opt_f) && $muttrc_From && lc($opt_f) eq lc($muttrc_From);
 102         for (@h_from) {
 103                 $from_headername=$_;    # leave last item in $from_headername
 104                 next if !(my @from_val=$head->get($from_headername));
 105                 @from_val=map({ ($_->address()); } map({ (Mail::Address->parse($_)); } @from_val));
 106                 $from_headername=undef() if !(1==@from_val && $muttrc_From && lc($from_val[0]) eq lc($muttrc_From));
 107                 last;
 108                 }       # fallthru with $from_headername remaining set if last headername did not exist
 109         # now $from_headername contains the header name to be replaced w/substituted value
 110         }
 111
 112 # to be utilized later by &FromAddress
 113 our $is_pgp;    # from PerlMail::Config;
 114 $is_pgp=(1
 115                 && do { local $_=$head->mime_attr("Content-Type");          $_ && ~m#^multipart/(?:signed|encrypted)$#; }
 116                 && do { local $_=$head->mime_attr("Content-Type.protocol"); $_ && ~m#^application/pgp\b#; }
 117                 );
 118
 119 my $exitcode=0;
 120 # !defined($rcpt) if we have no recipients
 121 # make the list unique to prevent dupes being normally filtered by sendmail(8)
 122 # one '{' is block-wrapper, another '{' is hash-indirection!
 123 # hash keys are just strings, never refs!
 124 # unify the list as Mail::Address instances
 125 my @rcpts=(!@addr ? (undef()) : values(%{{ map({
 126                 my $obj=$_;
 127                 $obj=parseone $obj if !ref $obj;
 128                 (!defined $obj ? () : (lc($obj->address())=>$obj));
 129                 } @addr) }}));
 130
 131 my $stdin_body=(@rcpts<=1 ? undef() : do {      # store input data only if it will be used multiple times
 132                 local $/=undef();
 133                 <STDIN>;
 134                 });
 135 for my $rcpt (@rcpts) {
 136         local @ARGV=@ARGV;
 137         local $opt_f=$opt_f;
 138
 139         if (defined $rcpt) {    # !defined($rcpt) if we have no recipients
 140                 local $_;
 141                 $opt_f=FromAddress($rcpt,1)->address() if !defined $opt_f;
 142                 $head->replace($from_headername,FromAddress($rcpt,0)->format()) if $from_headername;
 143                 }
 144
 145         1;      # drop '-bm' if present as it is default anyway
 146         1;      # drop '-t' if present as we are looping now for it
 147         push @ARGV,"-f",$opt_f if defined $opt_f;
 148         # we don't handle "Full-Name" header thus pass "-F"
 149         # "From/Resent-From" should be handled by our &FromAddress
 150         push @ARGV,"-F",$opt_F if defined $opt_F;
 151         push @ARGV,$rcpt->address() if defined $rcpt;
 152         push @ARGV,@addr_addon;
 153
 154         local $SIG{"PIPE"}=sub { die "Got SIGPIPE from ".sendmail_show(); };
 155         local *SENDMAIL;
 156         if ($opt_perlmail_dry_run) {
 157                 print sendmail_show()."\n";
 158                 *SENDMAIL=\*STDOUT;
 159                 }
 160         else {
 161                 defined (my $pid=open SENDMAIL,"|-") or die "Cannot fork to spawn ".sendmail_show().": $!";
 162                 sendmail_orig_exec() if !$pid; # child
 163                 }
 164         $head->print(\*SENDMAIL);
 165         print SENDMAIL "\n";    # MIME::Head->print() eats the empty line but it doesn't print it
 166         if (defined($stdin_body)) {
 167                 print SENDMAIL $stdin_body;
 168                 }
 169         else {
 170                 local $_;
 171                 while (<STDIN>) {
 172                         print SENDMAIL $_;
 173                         }
 174                 }
 175
 176         next if $opt_perlmail_dry_run;  # don't close our STDOUT as it is aliased to *SENDMAIL
 177         close SENDMAIL or warn "close(".sendmail_show()."): $?=".join(",",
 178                         (!WIFEXITED($?)   ? () : ("EXITSTATUS(".WEXITSTATUS($?).")")),
 179                         (!WIFSIGNALED($?) ? () : ("TERMSIG("   .WTERMSIG($?)   .")")),
 180                         (!WIFSTOPPED($?)  ? () : ("STOPSIG("   .WSTOPSIG($?)   .")")),
 181                         );
 182         my $gotcode=(!WIFEXITED($?) ? 99 : WEXITSTATUS($?));
 183         $exitcode=$gotcode if $gotcode>$exitcode;
 184         }
 185 exit $exitcode;