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be24e9af MW |
1 | ### -*-perl-*- |
2 | ||
3 | package Odin; | |
4 | ||
5 | use DBI; | |
c86aee46 | 6 | use Date::Parse; |
be24e9af MW |
7 | use Digest::SHA qw(sha256_hex); |
8 | use MIME::Base64; | |
cc346ee1 | 9 | use POSIX; |
be24e9af MW |
10 | |
11 | ###-------------------------------------------------------------------------- | |
12 | ### Early utilities. | |
13 | ||
14 | sub merge_hash (\%%) { | |
15 | my ($hashref, %defaults) = @_; | |
16 | for my $k (keys %defaults) | |
17 | { $hashref->{$k} = $defaults{$k} unless exists $hashref->{$k}; } | |
18 | } | |
19 | ||
20 | ###-------------------------------------------------------------------------- | |
21 | ### Configuration. | |
22 | ||
23 | our $DSN = "dbi:Pg(pg_enable_utf8=>1):host=db"; | |
24 | our $RETRY = 10; | |
25 | our @BACKOFF = (0.1, 10, 1.5, 0.5, 2.0); | |
26 | ||
27 | our $BASEURL = "http://odin.gg/"; | |
28 | our $STATIC = "http://odin.gg/"; | |
29 | ||
30 | our $SHORTURL_PATH = "u"; | |
31 | our $PASTEBIN_PATH = "p"; | |
32 | ||
33 | our $URLMAXLEN = 1024; | |
34 | our @URLPAT = ( | |
35 | qr{^https?://} | |
36 | ); | |
37 | ||
fc8074b3 MW |
38 | our $PASTEMAXLEN = 1024*1024; |
39 | ||
be24e9af MW |
40 | our %COOKIE_DEFAULTS = ( |
41 | -httponly => undef, | |
42 | -max_age => 3600 | |
43 | ); | |
44 | ||
c86aee46 MW |
45 | our $ALPHA = "abcdefghijklmnopqrstuvwxyz"; |
46 | our $NUM = "0123456789"; | |
47 | our $SAFECH = qr/^[-\w_.+]*$/; | |
be24e9af | 48 | |
c86aee46 MW |
49 | our %GENPARAM = (); |
50 | our %GENMAP = (); | |
51 | our %MAILDOM_POLICY = (); | |
52 | our $MAIL_QUALDOM; | |
53 | ||
54 | our @MAIL_DEFGEN = "chars"; | |
55 | our $MAIL_MAXGENTRY = 32; | |
56 | ||
57 | our $MAIL_DEFDOMAIN = "odin.gg"; | |
58 | our $MAIL_ADDRMAX_LIVE = 16384; | |
59 | our $MAIL_ADDRMAX_RESV = 32; | |
60 | our $MAIL_AGEMAX_RESV = 3600; | |
be24e9af | 61 | |
de6ef7e4 MW |
62 | our ($SCHEME, $DOMAIN, $BASEPATH); |
63 | our ($SHORTURL, $PASTEBIN); | |
be24e9af MW |
64 | |
65 | ###-------------------------------------------------------------------------- | |
66 | ### Miscellaneous utilities. | |
67 | ||
503f7910 MW |
68 | our $NOW; |
69 | sub update_now () { $NOW = time; } | |
70 | update_now; | |
71 | ||
be24e9af MW |
72 | (our $PROG = $0) =~ s:^.*/::; |
73 | ||
74 | sub fail_cmdline ($$%) { | |
75 | my ($msg, $label, %args) = @_; | |
76 | print STDERR "$PROG: $msg\n"; | |
77 | exit 1; | |
78 | } | |
79 | ||
80 | our $FAILPROC = \&fail_cmdline; | |
81 | ||
82 | sub fail ($;$%) { | |
83 | my ($msg, $label, %args) = @_; | |
84 | $FAILPROC->($msg, $label, %args); | |
85 | } | |
86 | ||
87 | sub set_mason_failproc ($) { | |
88 | my ($m) = @_; | |
89 | $FAILPROC = sub { | |
90 | my ($msg, $label, %args) = @_; | |
91 | $m->clear_buffer; | |
92 | $m->comp($label, %args); | |
93 | $m->abort; | |
94 | }; | |
95 | } | |
96 | ||
97 | sub nice_name ($) { | |
98 | my ($s) = @_; | |
99 | $s =~ s/\W+//g; | |
100 | return lc $s; | |
101 | } | |
102 | ||
c86aee46 MW |
103 | my %TIMEUNIT = ( |
104 | "" => 1, | |
105 | "s" => 1, "m" => 60, "h" => 3600, | |
106 | "d" => 86400, "w" => 604800 | |
107 | ); | |
108 | sub parse_time ($) { | |
109 | my ($date) = @_; | |
110 | return undef unless defined $date; | |
111 | if ($date =~ /^\+\s*(\d+)\s*([smhdw]?)\s*$/) | |
112 | { return $NOW + $1 * $TIMEUNIT{$2}; } | |
113 | my $t = str2time($date); | |
114 | defined $t or Odin::fail "invalid time `$date'"; | |
115 | return $t; | |
116 | } | |
117 | ||
cc346ee1 MW |
118 | sub print_columns (@) { |
119 | my @col = reverse @_; | |
120 | my @fmt = (); | |
121 | my @val = (); | |
122 | while (@col && $col[1] eq "") { splice @col, 0, 2; } | |
123 | my ($wd, $v) = splice @col, 0, 2; | |
124 | push @fmt, "%s"; push @val, $v; | |
125 | while (@col) { | |
126 | my ($wd, $v) = splice @col, 0, 2; | |
127 | push @fmt, "%-${wd}s"; | |
128 | push @val, $v; | |
129 | } | |
130 | printf join(" ", reverse @fmt) . "\n", reverse @val; | |
131 | } | |
132 | ||
133 | sub fmt_time ($) { | |
134 | my ($t) = @_; | |
135 | return $t == -1 ? "--" : strftime "%Y-%m-%d %H:%M:%S %z", localtime $t; | |
136 | } | |
137 | ||
be24e9af MW |
138 | ###-------------------------------------------------------------------------- |
139 | ### Database utilities. | |
140 | ||
141 | sub open_db (@) { | |
142 | my @attr = @_; | |
143 | my $db = DBI->connect_cached($DSN, undef, undef, { | |
144 | PrintError => 0, | |
145 | RaiseError => 1, | |
146 | @attr | |
147 | }); | |
148 | ||
149 | my $drv = $db->{Driver}{Name}; | |
150 | if ($drv eq "Pg") { | |
151 | $db->{private_odin_retry_p} = sub { $db->state =~ /^40[0P]01$/ }; | |
be24e9af MW |
152 | } elsif ($drv eq "SQLite") { |
153 | $db->{private_odin_retry_p} = sub { $db->err == 5 }; | |
be24e9af | 154 | } else { |
3300e9a2 | 155 | $db->{private_odin_retry_p} = sub { 0 }; |
be24e9af MW |
156 | } |
157 | ||
158 | return $db; | |
159 | } | |
160 | ||
161 | sub xact (&$) { | |
162 | my ($body, $db) = @_; | |
163 | my @rv; | |
164 | my $exc; | |
165 | ||
166 | my ($sleep, $maxsleep, $mult, $minvar, $maxvar) = @BACKOFF; | |
167 | for (my $i = 0; $i < $RETRY; $i++) { | |
168 | $db->begin_work; | |
169 | eval { @rv = $body->(); $db->commit; }; | |
170 | $exc = $@; | |
171 | return @rv unless $exc; | |
172 | my $retryp = $db->{private_odin_retry_p}(); | |
173 | eval { $db->rollback; }; | |
174 | die $exc unless $retryp; | |
175 | my $t = $sleep * ($minvar + rand($maxvar - $minvar)); | |
176 | $sleep *= $mult; $sleep = $max if $sleep > $max; | |
177 | select undef, undef, undef, $t; | |
178 | } | |
179 | die $exc; | |
180 | } | |
181 | ||
818d8028 MW |
182 | sub insert_record ($$%) { |
183 | my ($db, $table, %fields) = @_; | |
184 | my @var = (); | |
185 | my @val = (); | |
186 | ||
187 | for my $v (keys %fields) { | |
188 | push @var, $v; | |
189 | push @val, $fields{$v}; | |
190 | } | |
191 | $db->do("INSERT INTO $table (" . join(", ", @var) . ") | |
192 | VALUES (" . join(", ", map { "?" } @var) . ")", undef, @val); | |
193 | } | |
be24e9af MW |
194 | |
195 | ###-------------------------------------------------------------------------- | |
196 | ### Sequence numbers and tagging. | |
197 | ||
198 | sub next_seq ($$) { | |
199 | my ($db, $table) = @_; | |
200 | my ($seq) = $db->selectrow_array("SELECT seq FROM $table"); | |
201 | die "no sequence number in $table" unless defined $seq; | |
202 | $db->do("UPDATE $table SET seq = ?", undef, $seq + 1); | |
203 | return $seq; | |
204 | } | |
205 | ||
206 | my $ALPHABET = | |
207 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"; | |
208 | my $NALPHA = length $ALPHABET; | |
209 | ||
210 | sub encode_tag ($) { | |
211 | my ($seq) = @_; | |
212 | my $tag = ""; | |
213 | while ($seq) { | |
214 | $tag .= substr($ALPHABET, $seq % $NALPHA, 1); | |
215 | $seq = int $seq/$NALPHA; | |
216 | } | |
217 | return $tag; | |
218 | } | |
219 | ||
220 | ###-------------------------------------------------------------------------- | |
221 | ### HTTP utilities. | |
222 | ||
223 | our %COOKIE; | |
224 | sub fetch_cookies ($) { | |
225 | my ($r) = @_; | |
226 | ||
227 | %COOKIE = (); | |
228 | my $cookies = $r->header_in("Cookie"); | |
229 | if (defined $cookies) { | |
230 | for my $kv (split /;/, $cookies) { | |
231 | my ($k, $v) = split /=/, $kv, 2; | |
232 | $k =~ s/^\s*(|\S|\S.*\S)\s*$/$1/; | |
233 | $v =~ s/^\s*(|\S|\S.*\S)\s*$/$1/; | |
234 | $v =~ s/\+/ /g; | |
235 | $v =~ s/\%([0-9a-f][0-9a-f])/chr hex $1/eg; | |
236 | $COOKIE{$k} = $v; | |
237 | } | |
238 | } | |
239 | } | |
240 | ||
241 | sub bake_cookie ($$%) { | |
242 | my ($r, $cookie, %attr) = @_; | |
243 | merge_hash %attr, %COOKIE_DEFAULTS; | |
244 | my @attr = map { | |
245 | my $v = $attr{$_}; tr/_-/-/d; | |
246 | defined $v ? "$_=$v" : $_ | |
247 | } keys %attr; | |
248 | $r->headers_out->add("Set-Cookie", join "; ", $cookie, @attr); | |
249 | } | |
250 | ||
251 | sub path_info ($) { | |
252 | my ($r) = @_; | |
253 | return $ENV{PATH_INFO} // $r->path_info; | |
254 | } | |
255 | ||
256 | ###-------------------------------------------------------------------------- | |
257 | ### HTML utilities. | |
258 | ||
259 | sub escapify ($$;$) { | |
260 | my ($m, $s, $mode) = @_; | |
261 | return $m->interp->apply_escapes($s, $mode // "h"); | |
262 | } | |
263 | ||
264 | ###-------------------------------------------------------------------------- | |
265 | ### Access control. | |
266 | ||
267 | our ($WHO, $WHOSURE); | |
268 | our ($WHOMATCH, $WHOCMP, $WHOPAT); | |
269 | ||
270 | sub cgi_who ($) { | |
271 | my ($r) = @_; | |
272 | my $raddr = $ENV{REMOTE_ADDR} // $r->connection->remote_ip; | |
273 | $WHO = ":NET-$raddr"; $WHOSURE = 0; | |
274 | $WHOMATCH = "LIKE"; $WHOCMP = ":NET-\%"; $WHOPAT = qr/^:NET-/; | |
275 | } | |
276 | ||
277 | sub cmdline_who () { | |
278 | $WHO = $ENV{USERV_USER} | |
279 | // ($< == $> && $ENV{USER}) | |
280 | // @{[getpwuid $<]}[0] | |
281 | // die "nameless user"; | |
282 | $WHOMATCH = "="; $WHOCMP = $WHO; $WHOPAT = qr/^\Q$WHO\E$/; | |
283 | $WHOSURE = 1; | |
284 | } | |
285 | ||
286 | sub new_editkey () { | |
287 | open my $fh, "/dev/urandom" or die "open urandom: $!"; | |
288 | sysread $fh, my $rand, 16; | |
289 | (my $edit = encode_base64 $rand) =~ tr:+/=\n:.-:d; | |
290 | return $edit, sha256_hex $edit; | |
291 | } | |
292 | ||
293 | ###-------------------------------------------------------------------------- | |
294 | ### URL shortening. | |
295 | ||
296 | sub get_shorturl ($) { | |
297 | my ($tag) = @_; | |
298 | ||
299 | my $db = open_db; | |
300 | my ($url) = $db->selectrow_array | |
301 | ("SELECT url FROM odin_shorturl WHERE tag = ?", undef, $tag); | |
302 | fail "tag `$tag' not found", ".notfound", tag => $tag unless defined $url; | |
303 | return $url; | |
304 | } | |
305 | ||
306 | sub valid_url_p ($) { | |
307 | my ($url) = @_; | |
308 | return | |
309 | length $url < $URLMAXLEN && | |
310 | scalar grep { $url =~ /$_/ } @URLPAT; | |
311 | } | |
312 | ||
313 | sub new_shorturl ($) { | |
314 | my ($url) = @_; | |
315 | ||
316 | valid_url_p $url or fail "invalid url", ".badurl", u => $url; | |
317 | ||
318 | my $db = open_db; | |
319 | my $tag; | |
320 | xact { | |
321 | ($tag) = $db->selectrow_array | |
322 | ("SELECT tag FROM odin_shorturl WHERE owner $WHOMATCH ? AND url = ?", | |
323 | undef, $WHOCMP, $url); | |
324 | unless (defined $tag) { | |
325 | $tag = encode_tag(next_seq($db, "odin_shorturl_seq")); | |
818d8028 MW |
326 | insert_record $db, "odin_shorturl", |
327 | tag => $tag, stamp => $NOW, owner => $WHO, url => $url; | |
be24e9af MW |
328 | } |
329 | } $db; | |
330 | return $tag; | |
331 | } | |
332 | ||
333 | sub check_shorturl_owner ($$) { | |
334 | my ($db, $tag) = @_; | |
335 | ||
336 | my ($owner) = $db->selectrow_array | |
337 | ("SELECT owner FROM odin_shorturl WHERE tag = ?", undef, $tag); | |
338 | fail "tag `$tag' not found", ".notfound", tag => $tag | |
339 | unless defined $owner; | |
340 | fail "not owner of `$tag'", ".notowner", tag => $tag | |
341 | unless $owner =~ /$WHOPAT/; | |
342 | } | |
343 | ||
344 | sub update_shorturl ($$) { | |
345 | my ($tag, $url) = @_; | |
346 | ||
347 | my $db = open_db; | |
348 | xact { | |
349 | check_shorturl_owner $db, $tag; | |
350 | $db->do("UPDATE odin_shorturl SET url = ? WHERE tag = ?", | |
351 | undef, $url, $tag); | |
352 | } $db; | |
353 | } | |
354 | ||
355 | sub delete_shorturl (@) { | |
356 | my (@tags) = @_; | |
357 | ||
358 | my $db = open_db; | |
359 | xact { | |
360 | for my $tag (@tags) { | |
361 | check_shorturl_owner $db, $tag; | |
362 | $db->do("DELETE FROM odin_shorturl WHERE tag = ?", undef, $tag); | |
363 | } | |
364 | } $db; | |
365 | } | |
366 | ||
367 | ###-------------------------------------------------------------------------- | |
368 | ### Paste bin. | |
369 | ||
370 | our %PASTEBIN_DEFAULTS = ( | |
371 | title => "(untitled)", | |
97a33b9c | 372 | lang => "txt", |
be24e9af MW |
373 | content => "" |
374 | ); | |
375 | our @PASTEBIN_PROPS = keys %PASTEBIN_DEFAULTS; | |
376 | our $PASTEBIN_PROPCOLS = join ", ", @PASTEBIN_PROPS; | |
377 | our $PASTEBIN_PROPPLACES = join ", ", map "?", @PASTEBIN_PROPS; | |
378 | ||
379 | sub new_pastebin (\%) { | |
380 | my ($new) = @_; | |
381 | ||
382 | my $db = open_db; | |
383 | my ($editkey, $hash) = new_editkey; | |
384 | my $tag; | |
385 | ||
386 | merge_hash %$new, %PASTEBIN_DEFAULTS; | |
387 | xact { | |
388 | $tag = encode_tag next_seq $db, "odin_pastebin_seq"; | |
818d8028 MW |
389 | insert_record $db, "odin_pastebin", |
390 | tag => $tag, stamp => $NOW, edithash => $hash, owner => $WHO, | |
391 | %$new; | |
be24e9af MW |
392 | } $db; |
393 | return $tag, $editkey; | |
394 | } | |
395 | ||
396 | sub get_pastebin ($$\%) { | |
397 | my ($db, $tag, $props) = @_; | |
398 | ||
399 | (my $owner, my $hash, @{$props}{@PASTEBIN_PROPS}) = | |
400 | $db->selectrow_array("SELECT owner, edithash, $PASTEBIN_PROPCOLS | |
401 | FROM odin_pastebin WHERE tag = ?", | |
402 | undef, $tag); | |
403 | fail "tag `$tag' not found", ".notfound", tag => $tag | |
404 | unless defined $owner; | |
405 | return $owner, $hash; | |
406 | } | |
407 | ||
408 | sub get_pastebin_check_owner ($$\%) { | |
409 | my ($db, $tag, $props) = @_; | |
410 | ||
411 | my ($owner, $hash) = get_pastebin $db, $tag, %$props; | |
412 | fail "not owner of `$tag'", ".notowner", tag => $tag | |
413 | unless $WHOSURE && $WHO eq $owner; | |
414 | } | |
415 | ||
416 | sub get_pastebin_check_editkey_or_owner ($$$\%) { | |
417 | my ($db, $tag, $editkey, $props) = @_; | |
418 | ||
419 | if (!defined $editkey) { get_pastebin_check_owner $db, $tag, %$props; } | |
420 | else { | |
421 | my ($owner, $hash) = get_pastebin $db, $tag, %$props; | |
422 | fail "incorrect edit key for `$tag'", ".badhash", tag => $tag | |
423 | unless $hash eq sha256_hex $editkey; | |
424 | } | |
425 | } | |
426 | ||
427 | sub rekey_pastebin ($) { | |
428 | my ($tag) = @_; | |
429 | ||
430 | my $db = open_db; | |
431 | my $editkey; | |
432 | xact { | |
433 | get_pastebin_check_owner $db, $tag, my %hunoz; | |
434 | ($editkey, my $hash) = new_editkey; | |
435 | $db->do("UPDATE odin_pastebin SET edithash = ? WHERE tag = ?", | |
436 | undef, $hash, $tag); | |
437 | } $db; | |
438 | return $editkey; | |
439 | } | |
440 | ||
441 | sub claim_pastebin ($$) { | |
442 | my ($tag, $editkey) = @_; | |
443 | ||
444 | my $db = open_db; | |
445 | $WHOSURE or fail "you can't claim pastes", ".notsure"; | |
446 | xact { | |
447 | get_pastebin_check_editkey_or_owner $db, $tag, $editkey, my %hunoz; | |
448 | $db->do("UPDATE odin_pastebin SET owner = ? WHERE tag = ?", | |
449 | undef, $WHO, $tag); | |
450 | } $db; | |
451 | } | |
452 | ||
453 | sub update_pastebin ($$\%) { | |
454 | my ($tag, $editkey, $new) = @_; | |
455 | ||
456 | my $db = open_db; | |
457 | my $editp = 0; | |
458 | xact { | |
459 | get_pastebin_check_editkey_or_owner $db, $tag, $editkey, my %old; | |
460 | for my $p (@PASTEBIN_PROPS) { | |
461 | if (!defined $new->{$p}) { $new->{$p} = $old{$p}; } | |
462 | else { | |
463 | $db->do("UPDATE odin_pastebin SET $p = ? WHERE tag = ?", | |
464 | undef, $new->{$p}, $tag) | |
465 | unless $new->{$p} eq $old{$p}; | |
466 | $editp = 1; | |
467 | } | |
468 | } | |
469 | } $db; | |
470 | return $editp; | |
471 | } | |
472 | ||
473 | sub delete_pastebin (@) { | |
474 | my @a = @_; | |
475 | my $db = open_db; | |
476 | xact { | |
477 | while (@a) { | |
478 | (my $tag, my $editkey, @a) = @a; | |
479 | get_pastebin_check_editkey_or_owner $db, $tag, $editkey, my %hunoz; | |
480 | $db->do("DELETE FROM odin_pastebin WHERE tag = ?", undef, $tag); | |
481 | } | |
482 | } $db; | |
483 | } | |
484 | ||
485 | sub tidy_pastebin_content ($) { | |
486 | my ($content) = @_; | |
487 | return undef unless defined $content; | |
488 | $content =~ tr/\r//d; | |
489 | $content =~ s/([^\n])\z/$1\n/; | |
fc8074b3 MW |
490 | length $content <= $PASTEMAXLEN or |
491 | fail "invalid paste content", ".badpaste"; | |
be24e9af MW |
492 | return $content; |
493 | } | |
494 | ||
f0bcb39a | 495 | ###-------------------------------------------------------------------------- |
c86aee46 MW |
496 | ### Mail redirection utilities. |
497 | ||
498 | sub redir_query ($$$;$@) { | |
499 | my ($db, $dom, $owner, $cond, @args) = @_; | |
500 | return @{$db->selectall_arrayref | |
501 | ("SELECT lpart, expire, recip, comment | |
502 | FROM odin_mailredir WHERE dom = ? AND owner = ?" . | |
503 | (defined $cond ? " AND $cond" : "") . " " . | |
67a39cad | 504 | "ORDER BY expire, lpart", undef, $dom, $owner, @args)}; |
c86aee46 MW |
505 | } |
506 | ||
507 | sub clear_redir_reservations ($) { | |
508 | my ($db) = @_; | |
509 | $db->do("DELETE FROM odin_mailredir WHERE | |
510 | st = 'reserved' AND expire < ?", undef, | |
511 | $NOW); | |
512 | $db->do("UPDATE odin_mailredir SET st = 'dormant', expire = -1 | |
513 | WHERE st = 'live' AND expire <> -1 AND expire < ?", undef, $NOW); | |
514 | } | |
515 | ||
516 | sub check_redir_limits ($) { | |
517 | my ($db) = @_; | |
518 | my %h = map { $_->[0] => $_->[1] } | |
519 | @{ $db->selectall_arrayref("SELECT st, COUNT(*) FROM odin_mailredir | |
520 | WHERE owner = ? GROUP BY st", undef, | |
521 | $Odin::WHO) }; | |
522 | for my $st (qw(live dormant reserved)) { $h{$st} //= 0; } | |
523 | $h{live} + $h{dormant} + $h{reserved} <= $MAIL_ADDRMAX_LIVE or | |
524 | Odin::fail "too many addresses claimed (see your sysadmin)"; | |
525 | $h{reserved} <= $MAIL_ADDRMAX_RESV or | |
526 | Odin::fail "too many addresses reserved (time to release some)"; | |
527 | } | |
528 | ||
529 | sub gencls ($) { | |
530 | my ($g) = @_; | |
531 | return $GENMAP{$g} // die "configuration error: no generator class `$g'"; | |
532 | } | |
533 | ||
534 | sub default_generator_class ($) { | |
535 | my ($dom) = @_; | |
536 | ||
537 | my $g = $MAILDOM_POLICY{$dom}{gen}[0] // $MAIL_DEFGEN[0]; | |
538 | return gencls $g; | |
539 | } | |
540 | ||
541 | sub get_generator_class ($$) { | |
542 | my ($dom, $g) = @_; | |
543 | ||
544 | grep { $_ eq $g } @{$MAILDOM_POLICY{$dom}{gen} // \@MAIL_DEFGEN} | |
545 | or fail "domain `$dom' doesn't allow generator `$g'"; | |
546 | return gencls $g; | |
547 | } | |
548 | ||
549 | sub gen_redir_name ($$) { | |
550 | my ($db, $gen) = @_; | |
551 | ||
552 | for (my $try = 0; $try < $MAIL_MAXGENTRY; $try++) { | |
553 | my $l = $gen->gen; | |
554 | return $l | |
555 | unless $db->selectrow_arrayref | |
556 | ("SELECT 1 FROM odin_mailredir WHERE lpart = ? AND dom = ?", | |
557 | undef, $l, $DOMAIN); | |
558 | } | |
559 | Odin::fail "failed to find unique local part"; | |
560 | } | |
561 | ||
562 | sub qualify_recip ($) { | |
563 | my ($r) = @_; | |
564 | ||
565 | return $r =~ /\@/ || !defined $MAIL_QUALDOM ? $r : "$r\@$MAIL_QUALDOM"; | |
566 | } | |
567 | ||
568 | sub check_fixup_redir ($) { | |
569 | my ($r) = @_; | |
570 | ||
571 | if (exists $r->{recip}) { | |
572 | $r->{recip} =~ /^[!-~]+$/ or fail "invalid recipient name `$r->{recip}'"; | |
573 | $r->{recip} = qualify_recip $r->{recip}; | |
574 | } | |
575 | } | |
576 | ||
f22ba7c6 MW |
577 | sub new_redir ($$\%;$) { |
578 | my ($dom, $gen, $r, $n) = @_; | |
c86aee46 | 579 | my $db = open_db; |
f22ba7c6 | 580 | my @l; |
c86aee46 | 581 | |
f22ba7c6 | 582 | $n //= 1; |
c86aee46 MW |
583 | check_fixup_redir $r; |
584 | Odin::xact { | |
585 | clear_redir_reservations $db; | |
f22ba7c6 MW |
586 | while (@l < $n) { |
587 | my $l = Odin::gen_redir_name $db, $gen; | |
588 | insert_record $db, "odin_mailredir", | |
589 | lpart => $l, dom => $dom, owner => $WHO, st => 'live', | |
590 | recip => $r->{recip} // qualify_recip $Odin::WHO, | |
591 | expire => $r->{expire} // -1, | |
592 | comment => $r->{comment} // ""; | |
593 | push @l, $l; | |
594 | } | |
c86aee46 MW |
595 | check_redir_limits $db; |
596 | } $db; | |
f22ba7c6 | 597 | return @l; |
c86aee46 MW |
598 | } |
599 | ||
600 | sub reserve_redir ($$$) { | |
601 | my ($dom, $gen, $n) = @_; | |
602 | my $db = open_db; | |
603 | my @l; | |
604 | ||
605 | Odin::xact { | |
606 | clear_redir_reservations $db; | |
607 | @l = (); | |
608 | for (my $i = 0; $i < $n; $i++) { push @l, gen_redir_name $db, $gen; } | |
609 | for my $l (@l) { | |
610 | insert_record $db, "odin_mailredir", | |
611 | lpart => $l, dom => $dom, owner => $WHO, | |
612 | st => 'reserved', expire => $NOW + $MAIL_AGEMAX_RESV; | |
613 | } | |
614 | check_redir_limits $db; | |
615 | } $db; | |
616 | return @l; | |
617 | } | |
618 | ||
619 | sub release_all_redir ($) { | |
620 | my ($dom) = @_; | |
621 | my $db = open_db; | |
622 | ||
623 | my $st = $db->prepare("DELETE FROM odin_mailredir | |
624 | WHERE dom = ? AND owner = ? AND st = 'reserved'"); | |
625 | Odin::xact { | |
626 | $st->execute($dom, $WHO); | |
627 | $st->rows or Odin::fail "no reserved addresses"; | |
628 | } $db; | |
629 | } | |
630 | ||
631 | sub release_redir ($@) { | |
632 | my ($dom, @l) = @_; | |
633 | my $db = open_db; | |
634 | ||
635 | my $st = $db->prepare("DELETE FROM odin_mailredir | |
636 | WHERE lpart = ? AND dom = ? AND | |
637 | owner = ? AND st = 'reserved'"); | |
638 | Odin::xact { | |
639 | clear_redir_reservations $db; | |
640 | for my $l (@l) { | |
641 | $st->execute($l, $dom, $WHO); | |
642 | Odin::fail "local part `$l' not reserved" unless $st->rows; | |
643 | } | |
644 | } $db; | |
645 | } | |
646 | ||
647 | sub disable_redir ($$) { | |
648 | my ($dom, @l) = @_; | |
649 | my $db = open_db; | |
650 | ||
651 | my $st = $db->prepare("UPDATE odin_mailredir | |
652 | SET st = 'dormant', expire = -1 | |
653 | WHERE lpart = ? AND dom = ? AND | |
654 | owner = ? AND st = 'live'"); | |
655 | Odin::xact { | |
656 | clear_redir_reservations $db; | |
657 | for my $l (@ARGV) { | |
658 | $st->execute($l, $dom, $WHO); | |
659 | Odin::fail "local part `$l' not live" unless $st->rows; | |
660 | } | |
661 | } $db; | |
662 | } | |
663 | ||
6c2ef782 MW |
664 | sub modify_redir ($\%@) { |
665 | my ($dom, $r, @l) = @_; | |
c86aee46 MW |
666 | my $db = open_db; |
667 | ||
668 | check_fixup_redir $r; | |
669 | Odin::xact { | |
670 | clear_redir_reservations $db; | |
6c2ef782 MW |
671 | for my $l (@l) { |
672 | my %r = %$r; | |
673 | my ($recip, $st) = $db->selectrow_array | |
674 | ("SELECT recip, st FROM odin_mailredir | |
675 | WHERE lpart = ? AND dom = ? AND owner = ?", undef, | |
676 | $l, $dom, $WHO); | |
677 | if (!defined $recip) { Odin::fail "unknown local part `$l'"; } | |
678 | elsif ($recip eq "") { $r{recip} //= qualify_recip $WHO; } | |
679 | if ($st ne "live") { $r{st} = "live"; $r{expire} //= -1; } | |
680 | my @var = (); | |
681 | my @val = (); | |
682 | for my $v (keys %r) { | |
683 | push @var, $v; | |
684 | push @val, $r{$v}; | |
685 | } | |
686 | @var or fail "nothing to change"; | |
687 | $db->do("UPDATE odin_mailredir SET " . | |
688 | join(", ", map { "$_ = ?" } @var) . " " . | |
689 | "WHERE lpart = ? AND dom = ?", undef, | |
690 | @val, $l, $dom); | |
c86aee46 | 691 | } |
c86aee46 MW |
692 | } $db; |
693 | } | |
694 | ||
695 | ###-------------------------------------------------------------------------- | |
f0bcb39a MW |
696 | ### Simple option parser. |
697 | ||
698 | package Odin::OptParse; | |
699 | ||
700 | sub new { | |
701 | my ($cls, @args) = @_; | |
702 | return bless { | |
703 | cur => "", | |
704 | args => \@args, | |
705 | opt => undef, | |
706 | ok => 1 | |
707 | }, $cls; | |
708 | } | |
709 | ||
710 | sub get { | |
711 | my ($me) = @_; | |
712 | if (!length $me->{cur}) { | |
713 | my $args = $me->{args}; | |
714 | if (!@$args) { return undef; } | |
715 | elsif ($args->[0] =~ /^[^-]|^-$/) { return undef; } | |
716 | elsif ($args->[0] eq "--") { shift @$args; return undef; } | |
717 | $me->{cur} = substr shift @$args, 1; | |
718 | } | |
719 | my $o = $me->{opt} = substr $me->{cur}, 0, 1; | |
720 | $me->{cur} = substr $me->{cur}, 1; | |
721 | return $o; | |
722 | } | |
723 | ||
724 | sub arg { | |
725 | my ($me) = @_; | |
726 | my $a; | |
727 | if (length $me->{cur}) { $a = $me->{cur}; $me->{cur} = ""; } | |
728 | elsif (@{$me->{args}}) { $a = shift @{$me->{args}}; } | |
729 | else { $a = undef; $me->err("option `-$me->{opt}' requires an argument"); } | |
730 | return $a; | |
731 | } | |
732 | ||
fafab3ed MW |
733 | sub intarg { |
734 | my ($me, $what, $min, $max) = @_; | |
735 | $what //= "option `-$me->{opt}'"; | |
736 | defined (my $a = $me->arg) or return undef; | |
737 | if ($a !~ /^[-+]?\d+$/ || | |
738 | (defined $min && $a < $min) || | |
739 | (defined $max && $a > $max)) { | |
740 | $me->err("invalid value `$a' for $what"); | |
741 | $a = undef; | |
742 | } | |
743 | return $a; | |
744 | } | |
745 | ||
f0bcb39a MW |
746 | sub rest { return @{$_[0]->{args}}; } |
747 | sub ok { return $_[0]->{ok}; } | |
748 | sub bad { $_[0]->{ok} = 0; } | |
749 | sub err { $_[0]->bad; print STDERR "$PROG: $_[1]\n"; } | |
750 | sub unk { $_[0]->err("unknown option `-$_[0]->{opt}'"); } | |
751 | ||
de6ef7e4 | 752 | ###-------------------------------------------------------------------------- |
c86aee46 MW |
753 | ### Parameter objects. |
754 | ||
755 | package Odin::Param; | |
756 | sub dflt { return $_[0]->{dflt}; } | |
757 | ||
758 | package Odin::Param::Int; | |
759 | @ISA = qw(Odin::Param); | |
760 | ||
761 | sub new { | |
762 | my ($cls, $dflt, $min, $max) = @_; | |
763 | return bless { dflt => $dflt, min => $min, max => $max }, $cls; | |
764 | } | |
765 | ||
766 | sub check { | |
767 | my ($me, $v) = @_; | |
768 | return undef unless | |
769 | $v =~ /^[-+]?\d+$/ && | |
770 | (!defined $me->{min} || $v >= $me->{min}) && | |
771 | (!defined $me->{max} || $v <= $me->{max}); | |
772 | return $v + 0; | |
773 | } | |
774 | ||
775 | package Odin::Param::Str; | |
776 | @ISA = qw(Odin::Param); | |
777 | ||
778 | sub new { | |
779 | my ($cls, $dflt, $rx, $minlen, $maxlen) = @_; | |
780 | return bless { | |
781 | dflt => $dflt, | |
782 | rx => defined $rx ? qr/$rx/ : qr//, | |
783 | minlen => $minlen, | |
784 | maxlen => $maxlen | |
785 | }, $cls; | |
786 | } | |
787 | ||
788 | sub check { | |
789 | my ($me, $v) = @_; | |
790 | return undef unless | |
791 | $v =~ /$me->{rx}/ && | |
792 | (!defined $me->{minlen} || length $v >= $me->{minlen}) && | |
793 | (!defined $me->{maxlen} || length $v <= $me->{maxlen}); | |
794 | return $v . ""; | |
795 | } | |
796 | ||
797 | ###-------------------------------------------------------------------------- | |
798 | ### Name generators. | |
799 | ||
800 | package Odin::Gen; | |
801 | ||
802 | use Scalar::Util qw(blessed); | |
803 | ||
804 | sub random { | |
805 | my ($me, $lim) = @_; | |
806 | ||
807 | defined $me->{rand} | |
808 | or open $me->{rand}, "/dev/urandom" | |
809 | or die "open random: $!"; | |
810 | ||
811 | my $nb = 1; my $max = 255; | |
812 | while ($lim > $max) { $nb++; $max = ($max << 8) | 255; } | |
813 | my $thresh = $max - ($max%$lim); | |
814 | ||
815 | for (;;) { | |
816 | sysread $me->{rand}, my $b, $nb | |
817 | or die "read random: $!"; | |
818 | my $r = 0; | |
819 | for (my $i = 0; $i < $nb; $i++) | |
820 | { $r = ($r << 255) | ord substr $b, $i, 1; } | |
821 | return $r%$lim if $r < $thresh; | |
822 | } | |
823 | } | |
824 | ||
825 | sub new { | |
826 | my ($cls, $dom, $param) = @_; | |
827 | my $pkg = \%::; | |
828 | for my $p (split /::/, $cls) { $pkg = \%{$pkg->{"${p}::"}}; } | |
829 | ||
830 | my $label = ${$pkg->{LABEL}}; | |
831 | my $plist = \@{$pkg->{PARAM}}; | |
832 | my $gtmpl = $GENPARAM{$label}; | |
833 | my $dtmpl = $MAILDOM_POLICY{$dom}{$label}; | |
834 | my %pp = (); | |
835 | ||
836 | for my $p (@$plist) { | |
837 | $pp->{$p} = 1; | |
838 | my $t = $dtmpl->{$p} // $gtmpl->{$p}; | |
839 | if (blessed $t && $t->isa("Odin::Param")) { | |
840 | if (!exists $param->{$p}) { $param->{$p} = $t->dflt; } | |
841 | else { | |
842 | my $v = $t->check($param->{$p}); | |
843 | Odin::fail "bad value `$param->{$p}' for $label parameter `$p'" | |
844 | unless defined $v; | |
845 | $param->{$p} = $v; | |
846 | } | |
847 | } else { | |
848 | if (exists $param->{$p}) | |
849 | { Odin::fail "not allowed to set $label parameter `$p'"; } | |
850 | else | |
851 | { $param->{$p} = $t; } | |
852 | } | |
853 | } | |
854 | for my $p (keys %$param) { | |
855 | if (!$pp->{$p}) { Odin::fail "unknown $label parameter `$p'"; } | |
856 | } | |
857 | ||
858 | my $me = bless { %$param }, $cls; | |
859 | $me->{rand} = undef; | |
860 | return $me; | |
861 | } | |
862 | ||
863 | package Odin::Gen::Chars; | |
864 | @ISA = qw(Odin::Gen); | |
865 | ||
866 | $LABEL = 'chars'; | |
867 | @PARAM = qw(ichars mchars echars len); | |
868 | ||
869 | $GENMAP{chars} = "Odin::Gen::Chars"; | |
870 | $GENPARAM{chars} = { | |
871 | ichars => Odin::Param::Str->new($ALPHA, $SAFECH, 1, 255), | |
872 | mchars => Odin::Param::Str->new($ALPHA . $NUM, $SAFECH, 2, 255), | |
873 | echars => Odin::Param::Str->new($ALPHA . $NUM, $SAFECH, 2, 255), | |
874 | len => Odin::Param::Int->new(6, 2, 16) | |
875 | }; | |
876 | ||
877 | sub _pick { | |
878 | my ($me, $chars) = @_; | |
879 | return substr $chars, $me->random(length $chars), 1; | |
880 | } | |
881 | ||
882 | sub gen { | |
883 | my ($me) = @_; | |
884 | ||
885 | my $n = $me->{len}; | |
886 | ||
887 | my $s = ""; | |
888 | if ($n) { $s .= $me->_pick($me->{ichars}); $n--; } | |
889 | while ($n > 1) { $s .= $me->_pick($me->{mchars}); $n--; } | |
890 | if ($n) { $s .= $me->_pick($me->{echars}); $n--; } | |
891 | if ($n) { die "INTERNAL can't count"; } | |
892 | return $s; | |
893 | } | |
894 | ||
895 | package Odin::Gen::Words; | |
896 | @ISA = qw(Odin::Gen); | |
897 | ||
898 | $LABEL = 'words'; | |
899 | @PARAM = qw(wordlist delim nwords); | |
900 | ||
901 | $GENMAP{words} = "Odin::Gen::Words"; | |
902 | $GENPARAM{words} = { | |
903 | wordlist => "etc/words", | |
904 | delim => Odin::Param::Str->new(".", qr/^[-_.+]*$/, 1, 1), | |
905 | nwords => Odin::Param::Int->new(3, 2, 16) | |
906 | }; | |
907 | ||
908 | sub gen { | |
909 | my ($me) = @_; | |
910 | my @w = (); | |
911 | ||
912 | if (!exists $me->{words}) { | |
913 | open my $f, $me->{wordlist} or die "open wordlist: $!"; | |
914 | $me->{words} = [grep chomp, <$f>]; | |
915 | close $f or die "close/read wordlist: $!"; | |
916 | } | |
917 | ||
918 | for (my $i = 0; $i < $me->{nwords}; $i++) | |
919 | { push @w, $me->{words}[$me->random(scalar @{$me->{words}})]; } | |
920 | return join $me->{delim}, @w; | |
921 | } | |
922 | ||
923 | ###-------------------------------------------------------------------------- | |
de6ef7e4 MW |
924 | ### Final configuration. |
925 | ||
926 | package Odin; | |
927 | ||
928 | require "config.pl"; | |
929 | ||
930 | ($SCHEME, $DOMAIN, $BASEPATH) = $BASEURL =~ m!^([^:]+)://([^/]+)(/.*)$!; | |
931 | merge_hash %COOKIE_DEFAULTS, -domain => $DOMAIN, -path => $BASEPATH; | |
932 | merge_hash %COOKIE_DEFAULTS, -secure => undef if $SCHEME eq "https"; | |
933 | ||
c86aee46 MW |
934 | $MAIL_QUALDOM //= $MAIL_DEFDOMAIN; |
935 | ||
de6ef7e4 MW |
936 | $SHORTURL = "$BASEURL$SHORTURL_PATH"; |
937 | $PASTEBIN = "$BASEURL$PASTEBIN_PATH"; | |
938 | ||
be24e9af MW |
939 | ###----- That's all, folks -------------------------------------------------- |
940 | ||
941 | 1; |