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dc88d139 TH |
1 | #! /usr/bin/perl -W |
2 | # | |
7aaba0e0 TH |
3 | # yapfaq Version 0.6 by Thomas Hochstein |
4 | # (Original author: Marc Brockschmidt) | |
dc88d139 | 5 | # |
7aaba0e0 | 6 | # This script posts any project described in its config-file. Most people |
dc88d139 TH |
7 | # will use it in combination with cron(8). |
8 | # | |
9 | # Copyright (C) 2003 Marc Brockschmidt <marc@marcbrockschmidt.de> | |
7aaba0e0 | 10 | # Copyright (c) 2010 Thomas Hochstein <thh@inter.net> |
dc88d139 TH |
11 | # |
12 | # It can be redistributed and/or modified under the same terms under | |
13 | # which Perl itself is published. | |
14 | ||
7aaba0e0 | 15 | my $Version = "0.6-unreleased"; |
dc88d139 TH |
16 | |
17 | my $NNTPServer = ""; | |
18 | my $NNTPUser = ""; | |
19 | my $NNTPPass = ""; | |
20 | my $Sender = ""; | |
21 | my $ConfigFile = "yapfaq.cfg"; | |
15dd764a | 22 | my $UsePGP = 0; |
dc88d139 TH |
23 | |
24 | ################################## PGP-Config ################################# | |
25 | ||
26 | my $pgp = '/usr/bin/pgp'; # path to pgp | |
27 | my $PGPVersion = '2'; # Use 2 for 2.X, 5 for PGP > 2.X and GPG for GPG | |
28 | ||
29 | my $PGPSigner = ''; # sign as who? | |
30 | my $PGPPass = ''; # pgp2 only | |
31 | my $PathtoPGPPass = ''; # pgp2, pgp5 and gpg | |
32 | ||
33 | ||
34 | my $pgpbegin ='-----BEGIN PGP SIGNATURE-----';# Begin of PGP-Signature | |
35 | my $pgpend ='-----END PGP SIGNATURE-----'; # End of PGP-Signature | |
36 | my $pgptmpf ='pgptmp'; # temporary file for PGP. | |
37 | my $pgpheader ='X-PGP-Sig'; | |
38 | ||
39 | my @PGPSignHeaders = ('From', 'Newsgroups', 'Subject', 'Control', | |
40 | 'Supersedes', 'Followup-To', 'Date', 'Sender', 'Approved', | |
41 | 'Message-ID', 'Reply-To', 'Cancel-Lock', 'Cancel-Key', | |
42 | 'Also-Control', 'Distribution'); | |
43 | ||
44 | my @PGPorderheaders = ('from', 'newsgroups', 'subject', 'control', | |
45 | 'supersedes', 'followup-To', 'date', 'organization', 'lines', | |
46 | 'sender', 'approved', 'distribution', 'message-id', | |
47 | 'references', 'reply-to', 'mime-version', 'content-type', | |
48 | 'content-transfer-encoding', 'summary', 'keywords', 'cancel-lock', | |
49 | 'cancel-key', 'also-control', 'x-pgp', 'user-agent'); | |
50 | ||
51 | ############################# End of Configuration ############################# | |
52 | ||
53 | use strict; | |
54 | use Net::NNTP; | |
55 | use Date::Calc qw(Add_Delta_YM Add_Delta_Days Delta_Days Today); | |
56 | use Fcntl ':flock'; # import LOCK_* constants | |
57 | my ($TDY, $TDM, $TDD) = Today(); #TD: Today's date | |
58 | ||
59 | my @Config; | |
60 | readconfig (\$ConfigFile, \@Config); | |
61 | ||
62 | foreach (@Config) { | |
63 | my ($LPD,$LPM,$LPY) = (01, 01, 0001); #LP: Last posting-date | |
64 | my ($NPY,$NPM,$NPD); #NP: Next posting-date | |
65 | my $SupersedeMID; | |
66 | ||
67 | my ($ActName,$File,$PFreq) =($$_{'name'},$$_{'file'},$$_{'posting-frequency'}); | |
68 | my ($From,$Subject,$NG,$Fup2)=($$_{'from'},$$_{'subject'},$$_{'ngs'},$$_{'fup2'}); | |
69 | my ($MIDF,$ReplyTo,$ExtHea)=($$_{'mid-format'},$$_{'reply-to'},$$_{'extraheader'}); | |
70 | my ($Supersede) =($$_{'supersede'}); | |
71 | ||
72 | if (open (FH, "<$File.cfg")) { | |
73 | while(<FH>){ | |
74 | if (/##;; Lastpost:\s*(\d{1,2})\.(\d{1,2})\.(\d{2}(\d{2})?)/){ | |
75 | ($LPD, $LPM, $LPY) = ($1, $2, $3); | |
76 | } elsif (/^##;;\s*LastMID:\s*(<\S+@\S+>)\s*$/) { | |
77 | $SupersedeMID = $1; | |
78 | } | |
79 | } | |
80 | close FH; | |
81 | } else { | |
82 | warn "Couldn't open $File.cfg: $!"; | |
83 | } | |
84 | ||
85 | $SupersedeMID = "" unless $Supersede; | |
86 | ||
87 | if ($PFreq =~ /(\d+)\s*([dw])/) { # Is counted in days or weeks: Use Add_Delta_Days. | |
88 | ($NPY,$NPM,$NPD) = Add_Delta_Days($LPY, $LPM, $LPD, (($2 eq "w")?$1 * 7: $1 * 1)); | |
89 | } elsif ($PFreq =~ /(\d+)\s*([my])/) { #Is counted in months or years: Use Add_Delta_YM | |
90 | ($NPY,$NPM,$NPD) = Add_Delta_YM($LPY, $LPM, $LPD, (($2 eq "m")?(0,$1):($1,0))); | |
91 | } | |
92 | ||
93 | if (Delta_Days($NPY,$NPM,$NPD,$TDY,$TDM,$TDD) >= 0 ) { | |
94 | postfaq(\$ActName,\$File,\$From,\$Subject,\$NG,\$Fup2,\$MIDF,\$ExtHea,\$Sender,\$TDY,\$TDM,\$TDD,\$ReplyTo,\$SupersedeMID); | |
95 | } | |
96 | } | |
97 | ||
98 | exit; | |
99 | ||
100 | ################################## readconfig ################################## | |
101 | # Takes a filename and the reference to an array, which will hold hashes with | |
102 | # the data from $File. | |
103 | ||
104 | sub readconfig{ | |
105 | my ($File, $Config) = @_; | |
106 | my ($LastEntry, $Error, $i) = ('','',0); | |
107 | ||
108 | open FH, "<$$File" or die "$0: Can't open $$File: $!"; | |
109 | while (<FH>) { | |
110 | if (/^(\s*(\S+)\s*=\s*'?(.*?)'?\s*(#.*$|$)|^(.*?)'?\s*(#.*$|$))/ && not /^\s*$/) { | |
111 | $LastEntry = lc($2) if $2; | |
112 | $$Config[$i]{$LastEntry} .= $3 if $3; | |
113 | $$Config[$i]{$LastEntry} .= "\n$5" if $5 && $5; | |
114 | } | |
115 | if (/^\s*=====\s*$/) { | |
116 | $i++; | |
117 | } | |
118 | } | |
119 | close FH; | |
120 | ||
121 | #Check saved values: | |
122 | for $i (0..$i){ | |
123 | unless($$Config[$i]{'from'} =~ /\S+\@(\S+\.)?\S{2,}\.\S{2,}/) { | |
124 | $Error .= "The From-header for your project \"$$Config[$i]{'name'}\" seems to be incorrect.\n" | |
125 | } | |
126 | unless($$Config[$i]{'ngs'} =~ /^\S+$/) { | |
127 | $Error .= "The Newsgroups-header for your project \"$$Config[$i]{'name'}\" contains whitespaces.\n" | |
128 | } | |
129 | unless(!$$Config[$i]{'fup2'} || $$Config[$i]{'fup2'} =~ /^\S+$/) { | |
130 | $Error .= "The Followup-To-header for your project \"$$Config[$i]{'name'}\" contains whitespaces.\n" | |
131 | } | |
132 | unless($$Config[$i]{'posting-frequency'} =~ /^\s*\d+\s*[dwmy]\s*$/) { | |
133 | $Error .= "The Posting-frequency for your project \"$$Config[$i]{'name'}\" is invalid.\n" | |
134 | } | |
135 | $Error .= "-" x 25 . "\n" if $Error; | |
136 | } | |
137 | die $Error if $Error; | |
138 | } | |
139 | ||
140 | ################################## postfaq ################################## | |
141 | # Takes a filename and many other vars. | |
142 | # | |
143 | # It reads the data-file $File and then posts the article. | |
144 | ||
145 | sub postfaq { | |
146 | my ($ActName,$File,$From,$Subject,$NG,$Fup2,$MIDF,$ExtraHeaders,$Sender,$TDY,$TDM,$TDD,$ReplyTo,$Supersedes) = @_; | |
147 | my (@Header,@Body,$MID,$InRealBody,$LastModified); | |
148 | ||
149 | #Prepare MID: | |
150 | $$TDM = ($$TDM < 10 && $$TDM !~ /^0/) ? "0" . $$TDM : $$TDM; | |
151 | $$TDD = ($$TDD < 10 && $$TDD !~ /^0/) ? "0" . $$TDD : $$TDD; | |
152 | ||
153 | $MID = $$MIDF; | |
154 | $MID =~ s/\%n/$$ActName/g; | |
155 | $MID =~ s/\%d/$$TDD/g; | |
156 | $MID =~ s/\%m/$$TDM/g; | |
157 | $MID =~ s/\%y/$$TDY/g; | |
158 | ||
159 | ||
160 | #Now get the body: | |
161 | open (FH, "<$$File"); | |
162 | while (<FH>){ | |
163 | s/\r//; | |
164 | push (@Body, $_), next if $InRealBody; | |
165 | $InRealBody++ if /^$/; | |
8e1cb154 | 166 | $LastModified = $1 if /^Last-modified: (\S+)$/i; |
dc88d139 TH |
167 | push @Body, $_; |
168 | } | |
169 | close FH; | |
170 | push @Body, "\n" if ($Body[-1] ne "\n"); | |
171 | ||
172 | #Create Date- and Expires-Header: | |
173 | my @time = localtime; | |
174 | my $ss = ($time[0]<10) ? "0" . $time[0] : $time[0]; | |
175 | my $mm = ($time[1]<10) ? "0" . $time[1] : $time[1]; | |
176 | my $hh = ($time[2]<10) ? "0" . $time[2] : $time[2]; | |
177 | my $day = $time[3]; | |
178 | my $month = ($time[4]+1<10) ? "0" . ($time[4]+1) : $time[4]+1; | |
179 | my $monthN = ("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec")[$time[4]]; | |
180 | my $wday = ("Sun","Mon","Tue","Wed","Thu","Fri","Sat")[$time[6]]; | |
181 | my $year = (1900 + $time[5]); | |
182 | my $tz = $time[8] ? " +0200" : " +0100"; | |
183 | ||
184 | my ($expY,$expM,$expD) = Add_Delta_YM($year, $month, $day, 0, 3); | |
185 | my $expmonthN = ("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec")[$expM-1]; | |
186 | ||
187 | my $date = "$day $monthN $year " . $hh . ":" . $mm . ":" . $ss . $tz; | |
188 | my $expdate = "$expD $expmonthN $expY $hh:$mm:$ss$tz"; | |
189 | ||
190 | #Replace %LM by the content of the news.answer-pseudo-header Last-modified: | |
191 | if ($LastModified) { | |
192 | $$Subject =~ s/\%LM/$LastModified/; | |
193 | } | |
194 | ||
195 | #Now create the complete Header: | |
196 | push @Header, "From: $$From\n"; | |
197 | push @Header, "Newsgroups: $$NG\n"; | |
198 | push @Header, "Followup-To: $$Fup2\n" if $$Fup2; | |
199 | push @Header, "Subject: $$Subject\n"; | |
200 | push @Header, "Message-ID: $MID\n"; | |
201 | push @Header, "Supersedes: $$Supersedes\n" if $$Supersedes; | |
202 | push @Header, "Date: $date\n"; | |
203 | push @Header, "Expires: $expdate\n"; | |
204 | push @Header, "Sender: $$Sender\n" if $$Sender; | |
205 | push @Header, "Mime-Version: 1.0\n"; | |
206 | push @Header, "Reply-To: $$ReplyTo\n" if $$ReplyTo; | |
207 | push @Header, "Content-Type: text/plain; charset=ISO-8859-15\n"; | |
208 | push @Header, "Content-Transfer-Encoding: 8bit\n"; | |
209 | push @Header, "User-Agent: yapfaq/$Version\n"; | |
210 | if ($$ExtraHeaders) { | |
211 | push @Header, "$_\n" for (split /\n/, $$ExtraHeaders); | |
212 | } | |
213 | ||
214 | my @Article = ($UsePGP)?@{signpgp(\@Header, \@Body)}:(@Header, "\n", @Body); | |
215 | ||
216 | post(\@Article); | |
217 | ||
218 | open (FH, ">$$File.cfg") or die "$0: Can't open $$File.cfg: $!"; | |
219 | print FH "##;; Lastpost: $day.$month.$year\n"; | |
220 | print FH "##;; LastMID: $MID\n"; | |
221 | close FH; | |
222 | } | |
223 | ||
224 | ################################## post ################################## | |
225 | # Takes a complete article (Header and Body). | |
226 | # | |
227 | # It opens a connection to $NNTPServer and posts the message. | |
228 | ||
229 | sub post { | |
230 | my ($ArticleR) = @_; | |
231 | ||
232 | my $NewsConnection = Net::NNTP->new($NNTPServer, Reader => 1) | |
233 | or die "Can't connect to news server $NNTPServer!\n"; | |
234 | ||
235 | $NewsConnection->authinfo ($NNTPUser, $NNTPPass); | |
236 | $NewsConnection->post(); | |
237 | $NewsConnection->datasend (@$ArticleR); | |
238 | $NewsConnection->dataend(); | |
239 | ||
240 | if (!$NewsConnection->ok()) { | |
241 | open FH, ">>ERROR.dat"; | |
242 | print FH "\nPosting failed! Response from news server:\n"; | |
243 | print FH $NewsConnection->code(); | |
244 | print FH $NewsConnection->message(); | |
245 | print FH "\n"; | |
246 | print FH @$ArticleR; | |
247 | print FH "-" x 80, "\n"; | |
248 | close FH; | |
249 | } | |
250 | ||
251 | $NewsConnection->quit(); | |
252 | } | |
253 | ||
254 | #-------- sub getpgpcommand | |
255 | # getpgpcommand generates the command to sign the message and returns it. | |
256 | # | |
257 | # Receives: | |
258 | # - $PGPVersion: A scalar holding the PGPVersion | |
259 | sub getpgpcommand { | |
260 | my ($PGPVersion) = @_; | |
261 | my $PGPCommand; | |
262 | ||
263 | if ($PGPVersion eq '2') { | |
264 | if ($PathtoPGPPass && !$PGPPass) { | |
265 | open (PGPPW, $PathtoPGPPass) or die "Can't open $PathtoPGPPass: $!"; | |
266 | $PGPPass = <PGPPW>; | |
267 | close PGPPW; | |
268 | } | |
269 | ||
270 | if ($PGPPass) { | |
271 | $PGPCommand = "PGPPASS=\"".$PGPPass."\" ".$pgp." -u \"".$PGPSigner."\" +verbose=0 language='en' -saft <".$pgptmpf.".txt >".$pgptmpf.".txt.asc"; | |
272 | } else { | |
273 | die "$0: PGP-Passphrase is unknown!\n"; | |
274 | } | |
275 | } elsif ($PGPVersion eq '5') { | |
276 | if ($PathtoPGPPass) { | |
277 | $PGPCommand = "PGPPASSFD=2 ".$pgp."s -u \"".$PGPSigner."\" -t --armor -o ".$pgptmpf.".txt.asc -z -f < ".$pgptmpf.".txt 2<".$PathtoPGPPass; | |
278 | } else { | |
279 | die "$0: PGP-Passphrase is unknown!\n"; | |
280 | } | |
281 | } elsif ($PGPVersion =~ m/GPG/io) { | |
282 | if ($PathtoPGPPass) { | |
283 | $PGPCommand = $pgp." --digest-algo MD5 -a -u \"".$PGPSigner."\" -o ".$pgptmpf.".txt.asc --no-tty --batch --passphrase-fd 2 2<".$PathtoPGPPass." --clearsign ".$pgptmpf.".txt"; | |
284 | } else { | |
285 | die "$0: Passphrase is unknown!\n"; | |
286 | } | |
287 | } else { | |
288 | die "$0: Unknown PGP-Version $PGPVersion!"; | |
289 | } | |
290 | return $PGPCommand; | |
291 | } | |
292 | ||
293 | ||
294 | #-------- sub signarticle | |
295 | # signarticle signs an articel and returns a reference to an array | |
296 | # containing the whole signed Message. | |
297 | # | |
298 | # Receives: | |
299 | # - $HeaderAR: A reference to a array containing the articles headers. | |
300 | # - $BodyR: A reference to an array containing the body. | |
301 | # | |
302 | # Returns: | |
303 | # - $MessageRef: A reference to an array containing the whole message. | |
304 | sub signpgp { | |
305 | my ($HeaderAR, $BodyR) = @_; | |
306 | my (@pgphead, @pgpbody, $pgphead, $pgpbody, $header, $signheaders, @signheaders, $currentheader, $HeaderR, $line); | |
307 | ||
308 | foreach my $line (@$HeaderAR) { | |
309 | if ($line =~ /^(\S+):\s+(.*)$/s) { | |
310 | $currentheader = $1; | |
311 | $$HeaderR{lc($currentheader)} = "$1: $2"; | |
312 | } else { | |
313 | $$HeaderR{lc($currentheader)} .= $line; | |
314 | } | |
315 | } | |
316 | ||
317 | foreach (@PGPSignHeaders) { | |
318 | if (defined($$HeaderR{lc($_)}) && $$HeaderR{lc($_)} =~ m/^[^\s:]+: .+/o) { | |
319 | push @signheaders, $_; | |
320 | } | |
321 | } | |
322 | ||
323 | $pgpbody = join ("", @$BodyR); | |
324 | ||
325 | # Delete and create the temporary pgp-Files | |
326 | unlink "$pgptmpf.txt"; | |
327 | unlink "$pgptmpf.txt.asc"; | |
328 | $signheaders = join(",", @signheaders); | |
329 | ||
330 | $pgphead = "X-Signed-Headers: $signheaders\n"; | |
331 | foreach $header (@signheaders) { | |
332 | if ($$HeaderR{lc($header)} =~ m/^[^\s:]+: (.+?)\n?$/so) { | |
333 | $pgphead .= $header.": ".$1."\n"; | |
334 | } | |
335 | } | |
336 | ||
337 | open(FH, ">" . $pgptmpf . ".txt") or die "$0: can't open $pgptmpf: $!\n"; | |
338 | print FH $pgphead, "\n", $pgpbody; | |
339 | print FH "\n" if ($PGPVersion =~ m/GPG/io); # workaround a pgp/gpg incompatibility - should IMHO be fixed in pgpverify | |
340 | close(FH) or warn "$0: Couldn't close TMP: $!\n"; | |
341 | ||
342 | # Start PGP, then read the signature; | |
343 | my $PGPCommand = getpgpcommand($PGPVersion); | |
344 | `$PGPCommand`; | |
345 | ||
346 | open (FH, "<" . $pgptmpf . ".txt.asc") or die "$0: can't open ".$pgptmpf.".txt.asc: $!\n"; | |
347 | $/ = "$pgpbegin\n"; | |
348 | $_ = <FH>; | |
349 | unless (m/\Q$pgpbegin\E$/o) { | |
350 | # unlink $pgptmpf . ".txt"; | |
351 | # unlink $pgptmpf . ".txt.asc"; | |
352 | die "$0: $pgpbegin not found in ".$pgptmpf.".txt.asc\n" | |
353 | } | |
354 | unlink($pgptmpf . ".txt") or warn "$0: Couldn't unlink $pgptmpf.txt: $!\n"; | |
355 | ||
356 | $/ = "\n"; | |
357 | $_ = <FH>; | |
358 | unless (m/^Version: (\S+)(?:\s(\S+))?/o) { | |
359 | unlink $pgptmpf . ".txt"; | |
360 | unlink $pgptmpf . ".txt.asc"; | |
361 | die "$0: didn't find PGP Version line where expected.\n"; | |
362 | } | |
363 | ||
364 | if (defined($2)) { | |
365 | $$HeaderR{$pgpheader} = $1."-".$2." ".$signheaders; | |
366 | } else { | |
367 | $$HeaderR{$pgpheader} = $1." ".$signheaders; | |
368 | } | |
369 | ||
370 | do { # skip other pgp headers like | |
371 | $_ = <FH>; # "charset:"||"comment:" until empty line | |
372 | } while ! /^$/; | |
373 | ||
374 | while (<FH>) { | |
375 | chomp; | |
376 | last if /^\Q$pgpend\E$/; | |
377 | $$HeaderR{$pgpheader} .= "\n\t$_"; | |
378 | } | |
379 | ||
380 | $$HeaderR{$pgpheader} .= "\n" unless ($$HeaderR{$pgpheader} =~ /\n$/s); | |
381 | ||
382 | $_ = <FH>; | |
383 | unless (eof(FH)) { | |
384 | unlink $pgptmpf . ".txt"; | |
385 | unlink $pgptmpf . ".txt.asc"; | |
386 | die "$0: unexpected data following $pgpend\n"; | |
387 | } | |
388 | close(FH); | |
389 | unlink "$pgptmpf.txt.asc"; | |
390 | ||
391 | my $tmppgpheader = $pgpheader . ": " . $$HeaderR{$pgpheader}; | |
392 | delete $$HeaderR{$pgpheader}; | |
393 | ||
394 | @pgphead = (); | |
395 | foreach $header (@PGPorderheaders) { | |
396 | if ($$HeaderR{$header} && $$HeaderR{$header} ne "\n") { | |
397 | push(@pgphead, "$$HeaderR{$header}"); | |
398 | delete $$HeaderR{$header}; | |
399 | } | |
400 | } | |
401 | ||
402 | foreach $header (keys %$HeaderR) { | |
403 | if ($$HeaderR{$header} && $$HeaderR{$header} ne "\n") { | |
404 | push(@pgphead, "$$HeaderR{$header}"); | |
405 | delete $$HeaderR{$header}; | |
406 | } | |
407 | } | |
408 | ||
409 | push @pgphead, ("X-PGP-Key: " . $PGPSigner . "\n"), $tmppgpheader; | |
410 | undef $tmppgpheader; | |
411 | ||
412 | @pgpbody = split /$/m, $pgpbody; | |
413 | my @pgpmessage = (@pgphead, "\n", @pgpbody); | |
414 | return \@pgpmessage; | |
415 | } |