Initial commit.

Check-in of original author's version.
Original author is Marc Brockschmidt <marc@marcbrockschmidt.de>.
Last change: 2003-02-16

Signed-off-by: Thomas Hochstein <thh@inter.net>

ChangeLog

@@ -0,0 +1,20 @@
+Version 0.5a
+
+- Fixed bug in readconfig().
+  Marc 'HE' Brockschmidt <marc@marcbrockschmidt.de>  16 Feb 2003 00:35:37
+  
+
+Version 0.5
+
+- Fixed PGP-Support (merging some code from tinews.pl). Seems to work well.
+  Marc 'HE' Brockschmidt <marc@marcbrockschmidt.de>  11 Jan 2003 3:46:57
+
+
+- General cleanup of the code, changing some weird behaviour and so on.
+  Marc 'HE' Brockschmidt <marc@marcbrockschmidt.de>  11 Jan 2003 2:27:23
+
+
+- Changed the name of the project. There was another postfaq before, so I
+  switched to yapfaq (yet another postfaq). I like the idea of a software-line
+  called ya-software for a possible commercial: "Buy ya software!"
+  Marc 'HE' Brockschmidt <marc@marcbrockschmidt.de>  11 Jan 2003 1:43:09

test.txt

@@ -0,0 +1,11 @@
+Last-modified: 2003-01-11
+
+Dies ist ein Test-Artikel. Klasse, was?
+
+Bla.
+
+Noch mehr foo.
+
+Bar.
+
+Nu reicht's.

yapfaq.cfg

@@ -0,0 +1,13 @@
+Name = 'testpost' 			   #Name wird in der MID verwendet.
+File = 'test.txt'			   #File mit dem Posting ($File.cfg enthält Daten über letztes Posting/MID, muß also am Anfang leer sein)
+Posting-frequency = '1d'		   #Möglich sind d,w,m,y
+From = 'test@domain.invalid'               #Der From
+Subject = 'No reply - Ignore'		   #Das Subject
+NGs = 'de.test'			           #Die NGs
+Fup2 = 'poster'				   #Fup2
+MID-Format = '<%n-%d.%m.%y@domain.invalid>'#Die MID sieht so aus, %n ist der Name.
+Supersede = yes
+ExtraHeader = 'Approved: foo@dch-faq.de
+X-Header: Some text'			   #Use this for custom headers like Approved.
+
+# Weitere Postings mit "=====" abtrennen.

yapfaq.pl

@@ -0,0 +1,413 @@
+#! /usr/bin/perl -W
+#
+# yapfaq Version 0.5b by Marc 'HE' Brockschmidt
+#
+# This script posts any project described in it's config-file. Most persons
+# will use it in combination with cron(8).
+# 
+# Copyright (C) 2003 Marc Brockschmidt <marc@marcbrockschmidt.de>
+#
+# It can be redistributed and/or modified under the same terms under 
+# which Perl itself is published.
+
+my $Version = "0.5b";
+
+my $NNTPServer = "";
+my $NNTPUser = "";
+my $NNTPPass = "";
+my $Sender = "";
+my $ConfigFile = "yapfaq.cfg";
+my $UsePGP = 1;
+
+################################## PGP-Config #################################
+
+my $pgp	          = '/usr/bin/pgp';            # path to pgp
+my $PGPVersion    = '2';                       # Use 2 for 2.X, 5 for PGP > 2.X and GPG for GPG
+
+my $PGPSigner     = '';                        # sign as who?
+my $PGPPass       = '';                        # pgp2 only
+my $PathtoPGPPass = '';	                       # pgp2, pgp5 and gpg
+
+
+my $pgpbegin  ='-----BEGIN PGP SIGNATURE-----';# Begin of PGP-Signature
+my $pgpend    ='-----END PGP SIGNATURE-----';  # End of PGP-Signature
+my $pgptmpf   ='pgptmp';                       # temporary file for PGP.
+my $pgpheader ='X-PGP-Sig';
+
+my @PGPSignHeaders = ('From', 'Newsgroups', 'Subject', 'Control',
+	'Supersedes', 'Followup-To', 'Date', 'Sender', 'Approved',
+	'Message-ID', 'Reply-To', 'Cancel-Lock', 'Cancel-Key',
+	'Also-Control', 'Distribution');
+
+my @PGPorderheaders = ('from', 'newsgroups', 'subject', 'control',
+	'supersedes', 'followup-To', 'date', 'organization', 'lines',
+	'sender', 'approved', 'distribution', 'message-id',
+	'references', 'reply-to', 'mime-version', 'content-type',
+	'content-transfer-encoding', 'summary', 'keywords', 'cancel-lock',
+	'cancel-key', 'also-control', 'x-pgp', 'user-agent');
+
+############################# End of Configuration #############################
+
+use strict;
+use Net::NNTP;
+use Date::Calc qw(Add_Delta_YM Add_Delta_Days Delta_Days Today);
+use Fcntl ':flock'; # import LOCK_* constants
+my ($TDY, $TDM, $TDD) = Today(); #TD: Today's date
+
+my @Config;
+readconfig (\$ConfigFile, \@Config);
+
+foreach (@Config) { 
+  my ($LPD,$LPM,$LPY) = (01, 01, 0001);  #LP: Last posting-date
+  my ($NPY,$NPM,$NPD);                   #NP: Next posting-date
+  my $SupersedeMID;
+  
+  my ($ActName,$File,$PFreq) =($$_{'name'},$$_{'file'},$$_{'posting-frequency'});
+  my ($From,$Subject,$NG,$Fup2)=($$_{'from'},$$_{'subject'},$$_{'ngs'},$$_{'fup2'});
+  my ($MIDF,$ReplyTo,$ExtHea)=($$_{'mid-format'},$$_{'reply-to'},$$_{'extraheader'});
+  my ($Supersede)            =($$_{'supersede'});
+    
+  if (open (FH, "<$File.cfg")) {
+    while(<FH>){
+      if (/##;; Lastpost:\s*(\d{1,2})\.(\d{1,2})\.(\d{2}(\d{2})?)/){
+        ($LPD, $LPM, $LPY) = ($1, $2, $3);
+      } elsif (/^##;;\s*LastMID:\s*(<\S+@\S+>)\s*$/) {
+        $SupersedeMID = $1;
+      }
+    }
+    close FH;
+  } else { 
+    warn "Couldn't open $File.cfg: $!";
+  }
+
+  $SupersedeMID = "" unless $Supersede;
+
+  if ($PFreq =~ /(\d+)\s*([dw])/) { # Is counted in days or weeks: Use Add_Delta_Days.
+    ($NPY,$NPM,$NPD) = Add_Delta_Days($LPY, $LPM, $LPD, (($2 eq "w")?$1 * 7: $1 * 1));
+  } elsif ($PFreq =~ /(\d+)\s*([my])/) { #Is counted in months or years: Use Add_Delta_YM
+    ($NPY,$NPM,$NPD) = Add_Delta_YM($LPY, $LPM, $LPD, (($2 eq "m")?(0,$1):($1,0)));
+  }
+    
+  if (Delta_Days($NPY,$NPM,$NPD,$TDY,$TDM,$TDD) >= 0 ) {
+    postfaq(\$ActName,\$File,\$From,\$Subject,\$NG,\$Fup2,\$MIDF,\$ExtHea,\$Sender,\$TDY,\$TDM,\$TDD,\$ReplyTo,\$SupersedeMID);
+  }
+}
+
+exit;
+
+################################## readconfig ##################################
+# Takes a filename and the reference to an array, which will hold hashes with
+# the data from $File.
+
+sub readconfig{
+  my ($File, $Config) = @_;
+  my ($LastEntry, $Error, $i) = ('','',0);
+
+  open FH, "<$$File" or die "$0: Can't open $$File: $!";
+  while (<FH>) {
+    if (/^(\s*(\S+)\s*=\s*'?(.*?)'?\s*(#.*$|$)|^(.*?)'?\s*(#.*$|$))/ && not /^\s*$/) {
+      $LastEntry = lc($2) if $2;
+      $$Config[$i]{$LastEntry} .= $3 if $3;  
+      $$Config[$i]{$LastEntry} .= "\n$5" if $5 && $5;
+    } 
+    if (/^\s*=====\s*$/) {
+      $i++;
+    }
+  }
+  close FH;
+
+  #Check saved values:
+  for $i (0..$i){
+    unless($$Config[$i]{'from'} =~ /\S+\@(\S+\.)?\S{2,}\.\S{2,}/) {
+      $Error .= "The From-header for your project \"$$Config[$i]{'name'}\" seems to be incorrect.\n"
+    }
+    unless($$Config[$i]{'ngs'} =~ /^\S+$/) {
+      $Error .= "The Newsgroups-header for your project \"$$Config[$i]{'name'}\" contains whitespaces.\n"
+    }
+    unless(!$$Config[$i]{'fup2'} || $$Config[$i]{'fup2'} =~ /^\S+$/) {
+      $Error .= "The Followup-To-header for your project \"$$Config[$i]{'name'}\" contains whitespaces.\n"
+    }
+    unless($$Config[$i]{'posting-frequency'} =~ /^\s*\d+\s*[dwmy]\s*$/) {
+      $Error .= "The Posting-frequency for your project \"$$Config[$i]{'name'}\" is invalid.\n"
+    }
+    $Error .= "-" x 25 . "\n" if $Error;
+  }
+  die $Error if $Error;
+}
+
+################################## postfaq ##################################
+# Takes a filename and many other vars.
+#
+# It reads the data-file $File and then posts the article.
+
+sub postfaq {
+  my ($ActName,$File,$From,$Subject,$NG,$Fup2,$MIDF,$ExtraHeaders,$Sender,$TDY,$TDM,$TDD,$ReplyTo,$Supersedes) = @_;
+  my (@Header,@Body,$MID,$InRealBody,$LastModified);
+
+  #Prepare MID:
+  $$TDM = ($$TDM < 10 && $$TDM !~ /^0/) ? "0" . $$TDM : $$TDM;
+  $$TDD = ($$TDD < 10 && $$TDD !~ /^0/) ? "0" . $$TDD : $$TDD;
+
+  $MID = $$MIDF;
+  $MID =~ s/\%n/$$ActName/g;
+  $MID =~ s/\%d/$$TDD/g;
+  $MID =~ s/\%m/$$TDM/g;
+  $MID =~ s/\%y/$$TDY/g;
+
+
+  #Now get the body:
+  open (FH, "<$$File");
+  while (<FH>){  
+    s/\r//;
+    push (@Body, $_), next if $InRealBody;
+    $InRealBody++ if /^$/;
+    $LastModified = $1 if /^Last-modified: (\S+)$/;
+    push @Body, $_;
+  }
+  close FH;
+  push @Body, "\n" if ($Body[-1] ne "\n");
+
+  #Create Date- and Expires-Header:
+  my @time = localtime;
+  my $ss =  ($time[0]<10) ? "0" . $time[0] : $time[0];
+  my $mm =  ($time[1]<10) ? "0" . $time[1] : $time[1];
+  my $hh =  ($time[2]<10) ? "0" . $time[2] : $time[2];
+  my $day = $time[3];
+  my $month = ($time[4]+1<10) ? "0" . ($time[4]+1) : $time[4]+1;
+  my $monthN = ("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec")[$time[4]];
+  my $wday = ("Sun","Mon","Tue","Wed","Thu","Fri","Sat")[$time[6]];
+  my $year = (1900 + $time[5]);
+  my $tz = $time[8] ? " +0200" : " +0100";
+  
+  my ($expY,$expM,$expD) = Add_Delta_YM($year, $month, $day, 0, 3);
+  my $expmonthN = ("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec")[$expM-1];
+
+  my $date = "$day $monthN $year " . $hh . ":" . $mm . ":" . $ss . $tz;
+  my $expdate = "$expD $expmonthN $expY $hh:$mm:$ss$tz";
+
+  #Replace %LM by the content of the news.answer-pseudo-header Last-modified:
+  if ($LastModified) {
+    $$Subject =~ s/\%LM/$LastModified/;
+  }
+
+  #Now create the complete Header:
+  push @Header, "From: $$From\n";
+  push @Header, "Newsgroups: $$NG\n";
+  push @Header, "Followup-To: $$Fup2\n" if $$Fup2;
+  push @Header, "Subject: $$Subject\n";
+  push @Header, "Message-ID: $MID\n";
+  push @Header, "Supersedes: $$Supersedes\n" if $$Supersedes;
+  push @Header, "Date: $date\n";
+  push @Header, "Expires: $expdate\n";
+  push @Header, "Sender: $$Sender\n" if $$Sender;
+  push @Header, "Mime-Version: 1.0\n";
+  push @Header, "Reply-To: $$ReplyTo\n" if $$ReplyTo;
+  push @Header, "Content-Type: text/plain; charset=ISO-8859-15\n";
+  push @Header, "Content-Transfer-Encoding: 8bit\n";
+  push @Header, "User-Agent: yapfaq/$Version\n";
+  if ($$ExtraHeaders) {
+    push @Header, "$_\n" for (split /\n/, $$ExtraHeaders);
+  }
+
+  my @Article = ($UsePGP)?@{signpgp(\@Header, \@Body)}:(@Header, "\n", @Body);
+  
+  post(\@Article);
+
+  open (FH, ">$$File.cfg") or die "$0: Can't open $$File.cfg: $!";
+  print FH "##;; Lastpost: $day.$month.$year\n";
+  print FH "##;; LastMID: $MID\n";
+  close FH;
+}
+
+################################## post ##################################
+# Takes a complete article (Header and Body).
+#
+# It opens a connection to $NNTPServer and posts the message.
+
+sub post {
+  my ($ArticleR) = @_;
+
+  my $NewsConnection = Net::NNTP->new($NNTPServer, Reader => 1)
+    or die "Can't connect to news server $NNTPServer!\n";
+
+  $NewsConnection->authinfo ($NNTPUser, $NNTPPass);
+  $NewsConnection->post();
+  $NewsConnection->datasend (@$ArticleR);
+  $NewsConnection->dataend();
+
+  if (!$NewsConnection->ok()) {
+    open FH, ">>ERROR.dat";
+    print FH "\nPosting failed!  Response from news server:\n";
+    print FH $NewsConnection->code();
+    print FH $NewsConnection->message();
+    print FH "\n";
+    print FH @$ArticleR;
+    print FH "-" x 80, "\n";
+    close FH;
+  }
+
+  $NewsConnection->quit();
+}
+
+#-------- sub getpgpcommand
+# getpgpcommand generates the command to sign the message and returns it.
+#
+# Receives:
+# 	- $PGPVersion: A scalar holding the PGPVersion
+sub getpgpcommand {
+  my ($PGPVersion) = @_;
+  my $PGPCommand;
+
+  if ($PGPVersion eq '2') {
+    if ($PathtoPGPPass && !$PGPPass) {
+      open (PGPPW, $PathtoPGPPass) or die "Can't open $PathtoPGPPass: $!";
+      $PGPPass = <PGPPW>;
+      close PGPPW;
+    }
+  
+    if ($PGPPass) {
+      $PGPCommand = "PGPPASS=\"".$PGPPass."\" ".$pgp." -u \"".$PGPSigner."\" +verbose=0 language='en' -saft <".$pgptmpf.".txt >".$pgptmpf.".txt.asc";
+    } else {
+      die "$0: PGP-Passphrase is unknown!\n";
+    }
+  } elsif ($PGPVersion eq '5') {
+    if ($PathtoPGPPass) {
+      $PGPCommand = "PGPPASSFD=2 ".$pgp."s -u \"".$PGPSigner."\" -t --armor -o ".$pgptmpf.".txt.asc -z -f < ".$pgptmpf.".txt 2<".$PathtoPGPPass;
+    } else {
+      die "$0: PGP-Passphrase is unknown!\n";
+    }
+  } elsif ($PGPVersion =~ m/GPG/io) {
+    if ($PathtoPGPPass) {
+      $PGPCommand = $pgp." --digest-algo MD5 -a -u \"".$PGPSigner."\" -o ".$pgptmpf.".txt.asc --no-tty --batch --passphrase-fd 2 2<".$PathtoPGPPass." --clearsign ".$pgptmpf.".txt";
+    } else {
+      die "$0: Passphrase is unknown!\n";
+    }
+  } else {
+    die "$0: Unknown PGP-Version $PGPVersion!";
+  }
+  return $PGPCommand;
+}
+
+
+#-------- sub signarticle
+# signarticle signs an articel and returns a reference to an array
+# 	containing the whole signed Message.
+#
+# Receives:
+# 	- $HeaderAR: A reference to a array containing the articles headers.
+# 	- $BodyR: A reference to an array containing the body.
+#
+# Returns:
+# 	- $MessageRef: A reference to an array containing the whole message.
+sub signpgp {
+  my ($HeaderAR, $BodyR) = @_;
+  my (@pgphead, @pgpbody, $pgphead, $pgpbody, $header, $signheaders, @signheaders, $currentheader, $HeaderR, $line);
+
+  foreach my $line (@$HeaderAR) {
+    if ($line =~ /^(\S+):\s+(.*)$/s) {
+      $currentheader = $1;
+      $$HeaderR{lc($currentheader)} = "$1: $2";
+    } else {
+      $$HeaderR{lc($currentheader)} .= $line;
+    }
+  }
+
+  foreach (@PGPSignHeaders) {
+    if (defined($$HeaderR{lc($_)}) && $$HeaderR{lc($_)} =~ m/^[^\s:]+: .+/o) {
+      push @signheaders, $_;
+    }
+  }
+
+  $pgpbody = join ("", @$BodyR);
+
+  # Delete and create the temporary pgp-Files
+  unlink "$pgptmpf.txt";
+  unlink "$pgptmpf.txt.asc";
+  $signheaders = join(",", @signheaders);
+
+  $pgphead = "X-Signed-Headers: $signheaders\n";
+  foreach $header (@signheaders) {
+    if ($$HeaderR{lc($header)} =~ m/^[^\s:]+: (.+?)\n?$/so) {
+      $pgphead .= $header.": ".$1."\n";
+    }
+  }
+
+  open(FH, ">" . $pgptmpf . ".txt") or die "$0: can't open $pgptmpf: $!\n";
+  print FH $pgphead, "\n", $pgpbody;
+  print FH "\n" if ($PGPVersion =~ m/GPG/io);	# workaround a pgp/gpg incompatibility - should IMHO be fixed in pgpverify
+  close(FH) or warn "$0: Couldn't close TMP: $!\n";
+
+  # Start PGP, then read the signature;
+  my $PGPCommand = getpgpcommand($PGPVersion);
+  `$PGPCommand`;
+
+  open (FH, "<" . $pgptmpf . ".txt.asc") or die "$0: can't open ".$pgptmpf.".txt.asc: $!\n";
+  $/ = "$pgpbegin\n";
+  $_ = <FH>;
+  unless (m/\Q$pgpbegin\E$/o) {
+#    unlink $pgptmpf . ".txt";
+#    unlink $pgptmpf . ".txt.asc";
+    die "$0: $pgpbegin not found in ".$pgptmpf.".txt.asc\n"
+  }
+  unlink($pgptmpf . ".txt") or warn "$0: Couldn't unlink $pgptmpf.txt: $!\n";
+
+  $/ = "\n";
+  $_ = <FH>;
+  unless (m/^Version: (\S+)(?:\s(\S+))?/o) {
+    unlink $pgptmpf . ".txt";
+    unlink $pgptmpf . ".txt.asc";
+    die "$0: didn't find PGP Version line where expected.\n";
+  }
+  
+  if (defined($2)) {
+    $$HeaderR{$pgpheader} = $1."-".$2." ".$signheaders;
+  } else {
+    $$HeaderR{$pgpheader} = $1." ".$signheaders;
+  }
+  
+  do {          # skip other pgp headers like
+    $_ = <FH>;  # "charset:"||"comment:" until empty line
+  } while ! /^$/;
+
+  while (<FH>) {
+    chomp;
+    last if /^\Q$pgpend\E$/;
+    $$HeaderR{$pgpheader} .= "\n\t$_";
+  }
+  
+  $$HeaderR{$pgpheader} .= "\n" unless ($$HeaderR{$pgpheader} =~ /\n$/s);
+
+  $_ = <FH>;
+  unless (eof(FH)) {
+    unlink $pgptmpf . ".txt";
+    unlink $pgptmpf . ".txt.asc";
+    die "$0: unexpected data following $pgpend\n";
+  }
+  close(FH);
+  unlink "$pgptmpf.txt.asc";
+
+  my $tmppgpheader = $pgpheader . ": " . $$HeaderR{$pgpheader};
+  delete $$HeaderR{$pgpheader};
+
+  @pgphead = ();
+  foreach $header (@PGPorderheaders) {
+    if ($$HeaderR{$header} && $$HeaderR{$header} ne "\n") {
+      push(@pgphead, "$$HeaderR{$header}");
+      delete $$HeaderR{$header};
+    }
+  }
+
+  foreach $header (keys %$HeaderR) {
+    if ($$HeaderR{$header} && $$HeaderR{$header} ne "\n") {
+      push(@pgphead, "$$HeaderR{$header}");
+      delete $$HeaderR{$header};
+    }
+  }
+
+  push @pgphead, ("X-PGP-Key: " . $PGPSigner . "\n"), $tmppgpheader;
+  undef $tmppgpheader;
+
+  @pgpbody = split /$/m, $pgpbody;
+  my @pgpmessage = (@pgphead, "\n", @pgpbody);
+  return \@pgpmessage;
+}