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1 | #! /usr/bin/perl -W |
2 | # | |
3 | # yapfaq Version 0.5b by Marc 'HE' Brockschmidt | |
4 | # | |
5 | # This script posts any project described in it's config-file. Most persons | |
6 | # will use it in combination with cron(8). | |
7 | # | |
8 | # Copyright (C) 2003 Marc Brockschmidt <marc@marcbrockschmidt.de> | |
9 | # | |
10 | # It can be redistributed and/or modified under the same terms under | |
11 | # which Perl itself is published. | |
12 | ||
13 | my $Version = "0.5b"; | |
14 | ||
15 | my $NNTPServer = ""; | |
16 | my $NNTPUser = ""; | |
17 | my $NNTPPass = ""; | |
18 | my $Sender = ""; | |
19 | my $ConfigFile = "yapfaq.cfg"; | |
20 | my $UsePGP = 1; | |
21 | ||
22 | ################################## PGP-Config ################################# | |
23 | ||
24 | my $pgp = '/usr/bin/pgp'; # path to pgp | |
25 | my $PGPVersion = '2'; # Use 2 for 2.X, 5 for PGP > 2.X and GPG for GPG | |
26 | ||
27 | my $PGPSigner = ''; # sign as who? | |
28 | my $PGPPass = ''; # pgp2 only | |
29 | my $PathtoPGPPass = ''; # pgp2, pgp5 and gpg | |
30 | ||
31 | ||
32 | my $pgpbegin ='-----BEGIN PGP SIGNATURE-----';# Begin of PGP-Signature | |
33 | my $pgpend ='-----END PGP SIGNATURE-----'; # End of PGP-Signature | |
34 | my $pgptmpf ='pgptmp'; # temporary file for PGP. | |
35 | my $pgpheader ='X-PGP-Sig'; | |
36 | ||
37 | my @PGPSignHeaders = ('From', 'Newsgroups', 'Subject', 'Control', | |
38 | 'Supersedes', 'Followup-To', 'Date', 'Sender', 'Approved', | |
39 | 'Message-ID', 'Reply-To', 'Cancel-Lock', 'Cancel-Key', | |
40 | 'Also-Control', 'Distribution'); | |
41 | ||
42 | my @PGPorderheaders = ('from', 'newsgroups', 'subject', 'control', | |
43 | 'supersedes', 'followup-To', 'date', 'organization', 'lines', | |
44 | 'sender', 'approved', 'distribution', 'message-id', | |
45 | 'references', 'reply-to', 'mime-version', 'content-type', | |
46 | 'content-transfer-encoding', 'summary', 'keywords', 'cancel-lock', | |
47 | 'cancel-key', 'also-control', 'x-pgp', 'user-agent'); | |
48 | ||
49 | ############################# End of Configuration ############################# | |
50 | ||
51 | use strict; | |
52 | use Net::NNTP; | |
53 | use Date::Calc qw(Add_Delta_YM Add_Delta_Days Delta_Days Today); | |
54 | use Fcntl ':flock'; # import LOCK_* constants | |
55 | my ($TDY, $TDM, $TDD) = Today(); #TD: Today's date | |
56 | ||
57 | my @Config; | |
58 | readconfig (\$ConfigFile, \@Config); | |
59 | ||
60 | foreach (@Config) { | |
61 | my ($LPD,$LPM,$LPY) = (01, 01, 0001); #LP: Last posting-date | |
62 | my ($NPY,$NPM,$NPD); #NP: Next posting-date | |
63 | my $SupersedeMID; | |
64 | ||
65 | my ($ActName,$File,$PFreq) =($$_{'name'},$$_{'file'},$$_{'posting-frequency'}); | |
66 | my ($From,$Subject,$NG,$Fup2)=($$_{'from'},$$_{'subject'},$$_{'ngs'},$$_{'fup2'}); | |
67 | my ($MIDF,$ReplyTo,$ExtHea)=($$_{'mid-format'},$$_{'reply-to'},$$_{'extraheader'}); | |
68 | my ($Supersede) =($$_{'supersede'}); | |
69 | ||
70 | if (open (FH, "<$File.cfg")) { | |
71 | while(<FH>){ | |
72 | if (/##;; Lastpost:\s*(\d{1,2})\.(\d{1,2})\.(\d{2}(\d{2})?)/){ | |
73 | ($LPD, $LPM, $LPY) = ($1, $2, $3); | |
74 | } elsif (/^##;;\s*LastMID:\s*(<\S+@\S+>)\s*$/) { | |
75 | $SupersedeMID = $1; | |
76 | } | |
77 | } | |
78 | close FH; | |
79 | } else { | |
80 | warn "Couldn't open $File.cfg: $!"; | |
81 | } | |
82 | ||
83 | $SupersedeMID = "" unless $Supersede; | |
84 | ||
85 | if ($PFreq =~ /(\d+)\s*([dw])/) { # Is counted in days or weeks: Use Add_Delta_Days. | |
86 | ($NPY,$NPM,$NPD) = Add_Delta_Days($LPY, $LPM, $LPD, (($2 eq "w")?$1 * 7: $1 * 1)); | |
87 | } elsif ($PFreq =~ /(\d+)\s*([my])/) { #Is counted in months or years: Use Add_Delta_YM | |
88 | ($NPY,$NPM,$NPD) = Add_Delta_YM($LPY, $LPM, $LPD, (($2 eq "m")?(0,$1):($1,0))); | |
89 | } | |
90 | ||
91 | if (Delta_Days($NPY,$NPM,$NPD,$TDY,$TDM,$TDD) >= 0 ) { | |
92 | postfaq(\$ActName,\$File,\$From,\$Subject,\$NG,\$Fup2,\$MIDF,\$ExtHea,\$Sender,\$TDY,\$TDM,\$TDD,\$ReplyTo,\$SupersedeMID); | |
93 | } | |
94 | } | |
95 | ||
96 | exit; | |
97 | ||
98 | ################################## readconfig ################################## | |
99 | # Takes a filename and the reference to an array, which will hold hashes with | |
100 | # the data from $File. | |
101 | ||
102 | sub readconfig{ | |
103 | my ($File, $Config) = @_; | |
104 | my ($LastEntry, $Error, $i) = ('','',0); | |
105 | ||
106 | open FH, "<$$File" or die "$0: Can't open $$File: $!"; | |
107 | while (<FH>) { | |
108 | if (/^(\s*(\S+)\s*=\s*'?(.*?)'?\s*(#.*$|$)|^(.*?)'?\s*(#.*$|$))/ && not /^\s*$/) { | |
109 | $LastEntry = lc($2) if $2; | |
110 | $$Config[$i]{$LastEntry} .= $3 if $3; | |
111 | $$Config[$i]{$LastEntry} .= "\n$5" if $5 && $5; | |
112 | } | |
113 | if (/^\s*=====\s*$/) { | |
114 | $i++; | |
115 | } | |
116 | } | |
117 | close FH; | |
118 | ||
119 | #Check saved values: | |
120 | for $i (0..$i){ | |
121 | unless($$Config[$i]{'from'} =~ /\S+\@(\S+\.)?\S{2,}\.\S{2,}/) { | |
122 | $Error .= "The From-header for your project \"$$Config[$i]{'name'}\" seems to be incorrect.\n" | |
123 | } | |
124 | unless($$Config[$i]{'ngs'} =~ /^\S+$/) { | |
125 | $Error .= "The Newsgroups-header for your project \"$$Config[$i]{'name'}\" contains whitespaces.\n" | |
126 | } | |
127 | unless(!$$Config[$i]{'fup2'} || $$Config[$i]{'fup2'} =~ /^\S+$/) { | |
128 | $Error .= "The Followup-To-header for your project \"$$Config[$i]{'name'}\" contains whitespaces.\n" | |
129 | } | |
130 | unless($$Config[$i]{'posting-frequency'} =~ /^\s*\d+\s*[dwmy]\s*$/) { | |
131 | $Error .= "The Posting-frequency for your project \"$$Config[$i]{'name'}\" is invalid.\n" | |
132 | } | |
133 | $Error .= "-" x 25 . "\n" if $Error; | |
134 | } | |
135 | die $Error if $Error; | |
136 | } | |
137 | ||
138 | ################################## postfaq ################################## | |
139 | # Takes a filename and many other vars. | |
140 | # | |
141 | # It reads the data-file $File and then posts the article. | |
142 | ||
143 | sub postfaq { | |
144 | my ($ActName,$File,$From,$Subject,$NG,$Fup2,$MIDF,$ExtraHeaders,$Sender,$TDY,$TDM,$TDD,$ReplyTo,$Supersedes) = @_; | |
145 | my (@Header,@Body,$MID,$InRealBody,$LastModified); | |
146 | ||
147 | #Prepare MID: | |
148 | $$TDM = ($$TDM < 10 && $$TDM !~ /^0/) ? "0" . $$TDM : $$TDM; | |
149 | $$TDD = ($$TDD < 10 && $$TDD !~ /^0/) ? "0" . $$TDD : $$TDD; | |
150 | ||
151 | $MID = $$MIDF; | |
152 | $MID =~ s/\%n/$$ActName/g; | |
153 | $MID =~ s/\%d/$$TDD/g; | |
154 | $MID =~ s/\%m/$$TDM/g; | |
155 | $MID =~ s/\%y/$$TDY/g; | |
156 | ||
157 | ||
158 | #Now get the body: | |
159 | open (FH, "<$$File"); | |
160 | while (<FH>){ | |
161 | s/\r//; | |
162 | push (@Body, $_), next if $InRealBody; | |
163 | $InRealBody++ if /^$/; | |
164 | $LastModified = $1 if /^Last-modified: (\S+)$/; | |
165 | push @Body, $_; | |
166 | } | |
167 | close FH; | |
168 | push @Body, "\n" if ($Body[-1] ne "\n"); | |
169 | ||
170 | #Create Date- and Expires-Header: | |
171 | my @time = localtime; | |
172 | my $ss = ($time[0]<10) ? "0" . $time[0] : $time[0]; | |
173 | my $mm = ($time[1]<10) ? "0" . $time[1] : $time[1]; | |
174 | my $hh = ($time[2]<10) ? "0" . $time[2] : $time[2]; | |
175 | my $day = $time[3]; | |
176 | my $month = ($time[4]+1<10) ? "0" . ($time[4]+1) : $time[4]+1; | |
177 | my $monthN = ("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec")[$time[4]]; | |
178 | my $wday = ("Sun","Mon","Tue","Wed","Thu","Fri","Sat")[$time[6]]; | |
179 | my $year = (1900 + $time[5]); | |
180 | my $tz = $time[8] ? " +0200" : " +0100"; | |
181 | ||
182 | my ($expY,$expM,$expD) = Add_Delta_YM($year, $month, $day, 0, 3); | |
183 | my $expmonthN = ("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec")[$expM-1]; | |
184 | ||
185 | my $date = "$day $monthN $year " . $hh . ":" . $mm . ":" . $ss . $tz; | |
186 | my $expdate = "$expD $expmonthN $expY $hh:$mm:$ss$tz"; | |
187 | ||
188 | #Replace %LM by the content of the news.answer-pseudo-header Last-modified: | |
189 | if ($LastModified) { | |
190 | $$Subject =~ s/\%LM/$LastModified/; | |
191 | } | |
192 | ||
193 | #Now create the complete Header: | |
194 | push @Header, "From: $$From\n"; | |
195 | push @Header, "Newsgroups: $$NG\n"; | |
196 | push @Header, "Followup-To: $$Fup2\n" if $$Fup2; | |
197 | push @Header, "Subject: $$Subject\n"; | |
198 | push @Header, "Message-ID: $MID\n"; | |
199 | push @Header, "Supersedes: $$Supersedes\n" if $$Supersedes; | |
200 | push @Header, "Date: $date\n"; | |
201 | push @Header, "Expires: $expdate\n"; | |
202 | push @Header, "Sender: $$Sender\n" if $$Sender; | |
203 | push @Header, "Mime-Version: 1.0\n"; | |
204 | push @Header, "Reply-To: $$ReplyTo\n" if $$ReplyTo; | |
205 | push @Header, "Content-Type: text/plain; charset=ISO-8859-15\n"; | |
206 | push @Header, "Content-Transfer-Encoding: 8bit\n"; | |
207 | push @Header, "User-Agent: yapfaq/$Version\n"; | |
208 | if ($$ExtraHeaders) { | |
209 | push @Header, "$_\n" for (split /\n/, $$ExtraHeaders); | |
210 | } | |
211 | ||
212 | my @Article = ($UsePGP)?@{signpgp(\@Header, \@Body)}:(@Header, "\n", @Body); | |
213 | ||
214 | post(\@Article); | |
215 | ||
216 | open (FH, ">$$File.cfg") or die "$0: Can't open $$File.cfg: $!"; | |
217 | print FH "##;; Lastpost: $day.$month.$year\n"; | |
218 | print FH "##;; LastMID: $MID\n"; | |
219 | close FH; | |
220 | } | |
221 | ||
222 | ################################## post ################################## | |
223 | # Takes a complete article (Header and Body). | |
224 | # | |
225 | # It opens a connection to $NNTPServer and posts the message. | |
226 | ||
227 | sub post { | |
228 | my ($ArticleR) = @_; | |
229 | ||
230 | my $NewsConnection = Net::NNTP->new($NNTPServer, Reader => 1) | |
231 | or die "Can't connect to news server $NNTPServer!\n"; | |
232 | ||
233 | $NewsConnection->authinfo ($NNTPUser, $NNTPPass); | |
234 | $NewsConnection->post(); | |
235 | $NewsConnection->datasend (@$ArticleR); | |
236 | $NewsConnection->dataend(); | |
237 | ||
238 | if (!$NewsConnection->ok()) { | |
239 | open FH, ">>ERROR.dat"; | |
240 | print FH "\nPosting failed! Response from news server:\n"; | |
241 | print FH $NewsConnection->code(); | |
242 | print FH $NewsConnection->message(); | |
243 | print FH "\n"; | |
244 | print FH @$ArticleR; | |
245 | print FH "-" x 80, "\n"; | |
246 | close FH; | |
247 | } | |
248 | ||
249 | $NewsConnection->quit(); | |
250 | } | |
251 | ||
252 | #-------- sub getpgpcommand | |
253 | # getpgpcommand generates the command to sign the message and returns it. | |
254 | # | |
255 | # Receives: | |
256 | # - $PGPVersion: A scalar holding the PGPVersion | |
257 | sub getpgpcommand { | |
258 | my ($PGPVersion) = @_; | |
259 | my $PGPCommand; | |
260 | ||
261 | if ($PGPVersion eq '2') { | |
262 | if ($PathtoPGPPass && !$PGPPass) { | |
263 | open (PGPPW, $PathtoPGPPass) or die "Can't open $PathtoPGPPass: $!"; | |
264 | $PGPPass = <PGPPW>; | |
265 | close PGPPW; | |
266 | } | |
267 | ||
268 | if ($PGPPass) { | |
269 | $PGPCommand = "PGPPASS=\"".$PGPPass."\" ".$pgp." -u \"".$PGPSigner."\" +verbose=0 language='en' -saft <".$pgptmpf.".txt >".$pgptmpf.".txt.asc"; | |
270 | } else { | |
271 | die "$0: PGP-Passphrase is unknown!\n"; | |
272 | } | |
273 | } elsif ($PGPVersion eq '5') { | |
274 | if ($PathtoPGPPass) { | |
275 | $PGPCommand = "PGPPASSFD=2 ".$pgp."s -u \"".$PGPSigner."\" -t --armor -o ".$pgptmpf.".txt.asc -z -f < ".$pgptmpf.".txt 2<".$PathtoPGPPass; | |
276 | } else { | |
277 | die "$0: PGP-Passphrase is unknown!\n"; | |
278 | } | |
279 | } elsif ($PGPVersion =~ m/GPG/io) { | |
280 | if ($PathtoPGPPass) { | |
281 | $PGPCommand = $pgp." --digest-algo MD5 -a -u \"".$PGPSigner."\" -o ".$pgptmpf.".txt.asc --no-tty --batch --passphrase-fd 2 2<".$PathtoPGPPass." --clearsign ".$pgptmpf.".txt"; | |
282 | } else { | |
283 | die "$0: Passphrase is unknown!\n"; | |
284 | } | |
285 | } else { | |
286 | die "$0: Unknown PGP-Version $PGPVersion!"; | |
287 | } | |
288 | return $PGPCommand; | |
289 | } | |
290 | ||
291 | ||
292 | #-------- sub signarticle | |
293 | # signarticle signs an articel and returns a reference to an array | |
294 | # containing the whole signed Message. | |
295 | # | |
296 | # Receives: | |
297 | # - $HeaderAR: A reference to a array containing the articles headers. | |
298 | # - $BodyR: A reference to an array containing the body. | |
299 | # | |
300 | # Returns: | |
301 | # - $MessageRef: A reference to an array containing the whole message. | |
302 | sub signpgp { | |
303 | my ($HeaderAR, $BodyR) = @_; | |
304 | my (@pgphead, @pgpbody, $pgphead, $pgpbody, $header, $signheaders, @signheaders, $currentheader, $HeaderR, $line); | |
305 | ||
306 | foreach my $line (@$HeaderAR) { | |
307 | if ($line =~ /^(\S+):\s+(.*)$/s) { | |
308 | $currentheader = $1; | |
309 | $$HeaderR{lc($currentheader)} = "$1: $2"; | |
310 | } else { | |
311 | $$HeaderR{lc($currentheader)} .= $line; | |
312 | } | |
313 | } | |
314 | ||
315 | foreach (@PGPSignHeaders) { | |
316 | if (defined($$HeaderR{lc($_)}) && $$HeaderR{lc($_)} =~ m/^[^\s:]+: .+/o) { | |
317 | push @signheaders, $_; | |
318 | } | |
319 | } | |
320 | ||
321 | $pgpbody = join ("", @$BodyR); | |
322 | ||
323 | # Delete and create the temporary pgp-Files | |
324 | unlink "$pgptmpf.txt"; | |
325 | unlink "$pgptmpf.txt.asc"; | |
326 | $signheaders = join(",", @signheaders); | |
327 | ||
328 | $pgphead = "X-Signed-Headers: $signheaders\n"; | |
329 | foreach $header (@signheaders) { | |
330 | if ($$HeaderR{lc($header)} =~ m/^[^\s:]+: (.+?)\n?$/so) { | |
331 | $pgphead .= $header.": ".$1."\n"; | |
332 | } | |
333 | } | |
334 | ||
335 | open(FH, ">" . $pgptmpf . ".txt") or die "$0: can't open $pgptmpf: $!\n"; | |
336 | print FH $pgphead, "\n", $pgpbody; | |
337 | print FH "\n" if ($PGPVersion =~ m/GPG/io); # workaround a pgp/gpg incompatibility - should IMHO be fixed in pgpverify | |
338 | close(FH) or warn "$0: Couldn't close TMP: $!\n"; | |
339 | ||
340 | # Start PGP, then read the signature; | |
341 | my $PGPCommand = getpgpcommand($PGPVersion); | |
342 | `$PGPCommand`; | |
343 | ||
344 | open (FH, "<" . $pgptmpf . ".txt.asc") or die "$0: can't open ".$pgptmpf.".txt.asc: $!\n"; | |
345 | $/ = "$pgpbegin\n"; | |
346 | $_ = <FH>; | |
347 | unless (m/\Q$pgpbegin\E$/o) { | |
348 | # unlink $pgptmpf . ".txt"; | |
349 | # unlink $pgptmpf . ".txt.asc"; | |
350 | die "$0: $pgpbegin not found in ".$pgptmpf.".txt.asc\n" | |
351 | } | |
352 | unlink($pgptmpf . ".txt") or warn "$0: Couldn't unlink $pgptmpf.txt: $!\n"; | |
353 | ||
354 | $/ = "\n"; | |
355 | $_ = <FH>; | |
356 | unless (m/^Version: (\S+)(?:\s(\S+))?/o) { | |
357 | unlink $pgptmpf . ".txt"; | |
358 | unlink $pgptmpf . ".txt.asc"; | |
359 | die "$0: didn't find PGP Version line where expected.\n"; | |
360 | } | |
361 | ||
362 | if (defined($2)) { | |
363 | $$HeaderR{$pgpheader} = $1."-".$2." ".$signheaders; | |
364 | } else { | |
365 | $$HeaderR{$pgpheader} = $1." ".$signheaders; | |
366 | } | |
367 | ||
368 | do { # skip other pgp headers like | |
369 | $_ = <FH>; # "charset:"||"comment:" until empty line | |
370 | } while ! /^$/; | |
371 | ||
372 | while (<FH>) { | |
373 | chomp; | |
374 | last if /^\Q$pgpend\E$/; | |
375 | $$HeaderR{$pgpheader} .= "\n\t$_"; | |
376 | } | |
377 | ||
378 | $$HeaderR{$pgpheader} .= "\n" unless ($$HeaderR{$pgpheader} =~ /\n$/s); | |
379 | ||
380 | $_ = <FH>; | |
381 | unless (eof(FH)) { | |
382 | unlink $pgptmpf . ".txt"; | |
383 | unlink $pgptmpf . ".txt.asc"; | |
384 | die "$0: unexpected data following $pgpend\n"; | |
385 | } | |
386 | close(FH); | |
387 | unlink "$pgptmpf.txt.asc"; | |
388 | ||
389 | my $tmppgpheader = $pgpheader . ": " . $$HeaderR{$pgpheader}; | |
390 | delete $$HeaderR{$pgpheader}; | |
391 | ||
392 | @pgphead = (); | |
393 | foreach $header (@PGPorderheaders) { | |
394 | if ($$HeaderR{$header} && $$HeaderR{$header} ne "\n") { | |
395 | push(@pgphead, "$$HeaderR{$header}"); | |
396 | delete $$HeaderR{$header}; | |
397 | } | |
398 | } | |
399 | ||
400 | foreach $header (keys %$HeaderR) { | |
401 | if ($$HeaderR{$header} && $$HeaderR{$header} ne "\n") { | |
402 | push(@pgphead, "$$HeaderR{$header}"); | |
403 | delete $$HeaderR{$header}; | |
404 | } | |
405 | } | |
406 | ||
407 | push @pgphead, ("X-PGP-Key: " . $PGPSigner . "\n"), $tmppgpheader; | |
408 | undef $tmppgpheader; | |
409 | ||
410 | @pgpbody = split /$/m, $pgpbody; | |
411 | my @pgpmessage = (@pgphead, "\n", @pgpbody); | |
412 | return \@pgpmessage; | |
413 | } |