Move update of last_picture_cache to right before the commit -- locks on that table...
[pr0n] / perl / Sesse / pr0n / WebDAV.pm
1 package Sesse::pr0n::WebDAV;
2 use strict;
3 use warnings;
4
5 use Sesse::pr0n::Common qw(error dberror);
6 use Digest::SHA1;
7 use MIME::Base64;
8 use Apache2::Request;
9 use Apache2::Upload;
10
11 sub handler {
12         my $r = shift;
13         my $dbh = Sesse::pr0n::Common::get_dbh();
14                         
15         $r->headers_out->{'DAV'} = "1,2";
16
17         # We only handle depth=0, depth=1 (cf. the RFC)
18         my $depth = $r->headers_in->{'depth'};
19         $depth = 0 if (!defined($depth));
20         if (defined($depth) && $depth ne "0" && $depth ne "1") {
21                 $r->content_type('text/plain; charset="utf-8"');
22                 $r->status(403);
23                 $r->print("Invalid depth setting");
24                 return Apache2::Const::OK;
25         }
26
27         my ($user,$takenby) = Sesse::pr0n::Common::check_access($r);
28         if (!defined($user)) {
29                 return Apache2::Const::OK;
30         }
31
32         # Just "ping, are you alive and do you speak WebDAV"
33         if ($r->method eq "OPTIONS") {
34                 $r->content_type('text/plain; charset="utf-8"');
35                 $r->status(200);
36                 $r->headers_out->{'allow'} = 'OPTIONS,PUT';
37                 $r->headers_out->{'ms-author-via'} = 'DAV';
38                 return Apache2::Const::OK;
39         }
40         
41         # Directory listings et al
42         if ($r->method eq "PROPFIND") {
43                 # We ignore the body, but we _must_ consume it fully before
44                 # we output anything, or Squid will get seriously confused
45                 $r->discard_request_body;
46
47                 $r->content_type('text/xml; charset="utf-8"');
48                 $r->status(207);
49
50                 if ($r->uri =~ m#^/webdav/?$#) {
51                         $r->headers_out->{'content-location'} = "/webdav/";
52                 
53                         # Root directory
54                         $r->print(<<"EOF");
55 <?xml version="1.0" encoding="utf-8"?>
56 <multistatus xmlns="DAV:">
57   <response>
58      <href>/webdav/</href>
59      <propstat>
60         <prop>
61           <resourcetype><collection/></resourcetype>
62           <getcontenttype>text/xml</getcontenttype>
63         </prop>
64         <status>HTTP/1.1 200 OK</status>
65      </propstat>
66   </response>
67 EOF
68
69                         # Optionally list the upload/ dir
70                         if ($depth >= 1) {
71                                 $r->print(<<"EOF");
72   <response>
73      <href>/webdav/upload/</href>
74      <propstat>
75         <prop>
76           <resourcetype><collection/></resourcetype>
77           <getcontenttype>text/xml</getcontenttype>
78         </prop>
79         <status>HTTP/1.1 200 OK</status>
80      </propstat>
81   </response>
82 EOF
83                         }
84                         $r->print("</multistatus>\n");
85                  } elsif ($r->uri =~ m#^/webdav/upload/?$#) {
86                         $r->headers_out->{'content-location'} = "/webdav/upload/";
87                         
88                         # Upload root directory
89                         $r->print(<<"EOF");
90 <?xml version="1.0" encoding="utf-8"?>
91 <multistatus xmlns="DAV:">
92   <response>
93      <href>/webdav/upload/</href>
94      <propstat>
95         <prop>
96           <resourcetype><collection/></resourcetype>
97           <getcontenttype>text/xml</getcontenttype>
98         </prop>
99         <status>HTTP/1.1 200 OK</status>
100      </propstat>
101   </response>
102 EOF
103
104                         # Optionally list all events
105                         if ($depth >= 1) {
106                                 my $q = $dbh->prepare('SELECT * FROM events WHERE vhost=?') or
107                                         dberror($r, "Couldn't list events");
108                                 $q->execute($r->get_server_name) or
109                                         dberror($r, "Couldn't get events");
110                 
111                                 while (my $ref = $q->fetchrow_hashref()) {
112                                         my $id = $ref->{'event'};
113                                         my $name = $ref->{'name'};
114                                 
115                                         $name =~ s/&/\&amp;/g;  # hack :-)
116                                         $r->print(<<"EOF");
117   <response>
118      <href>/webdav/upload/$id/</href>
119      <propstat>
120         <prop>
121           <resourcetype><collection/></resourcetype>
122           <getcontenttype>text/xml</getcontenttype>
123           <displayname>$name</displayname> 
124         </prop>
125         <status>HTTP/1.1 200 OK</status>
126      </propstat>
127   </response>
128 EOF
129                                 }
130                                 $q->finish;
131                         }
132
133                         $r->print("</multistatus>\n");
134                 } elsif ($r->uri =~ m#^/webdav/upload/([a-zA-Z0-9-]+)/?$#) {
135                         my $event = $1;
136                         
137                         $r->headers_out->{'content-location'} = "/webdav/upload/$event/";
138                         
139                         # Check that we do indeed exist
140                         my $ref = $dbh->selectrow_hashref('SELECT count(*) AS numev FROM events WHERE vhost=? AND event=?',
141                                 undef, $r->get_server_name, $event);
142                         if ($ref->{'numev'} != 1) {
143                                 $r->status(404);
144                                 $r->content_type('text/plain; charset=utf-8');
145                                 $r->print("Couldn't find event in database");
146                                 return Apache2::Const::OK;
147                         }
148                         
149                         # OK, list the directory
150                         $r->print(<<"EOF");
151 <?xml version="1.0" encoding="utf-8"?>
152 <multistatus xmlns="DAV:">
153   <response>
154      <href>/webdav/upload/$event/</href>
155      <propstat>
156         <prop>
157           <resourcetype><collection/></resourcetype>
158           <getcontenttype>text/xml</getcontenttype>
159         </prop>
160         <status>HTTP/1.1 200 OK</status>
161      </propstat>
162   </response>
163 EOF
164
165                         # List all the files within too, of course :-)
166                         if ($depth >= 1) {
167                                 my $q = $dbh->prepare('SELECT * FROM images WHERE vhost=? AND event=?') or
168                                         dberror($r, "Couldn't list images");
169                                 $q->execute($r->get_server_name, $event) or
170                                         dberror($r, "Couldn't get events");
171                 
172                                 while (my $ref = $q->fetchrow_hashref()) {
173                                         my $id = $ref->{'id'};
174                                         my $filename = $ref->{'filename'};
175                                         my $fname = Sesse::pr0n::Common::get_disk_location($r, $id);
176                                         my (undef, undef, undef, undef, undef, undef, undef, $size, undef, $mtime) = stat($fname)
177                                                 or next;
178                                         $mtime = POSIX::strftime("%a, %d %b %Y %H:%M:%S GMT", gmtime($mtime));
179                                         my $mime_type = Sesse::pr0n::Common::get_mimetype_from_filename($filename);
180
181                                         $r->print(<<"EOF");
182   <response>
183      <href>/webdav/upload/$event/$filename</href>
184      <propstat>
185         <prop>
186           <resourcetype/>
187           <getcontenttype>$mime_type</getcontenttype>
188           <getcontentlength>$size</getcontentlength>
189           <getlastmodified>$mtime</getlastmodified>
190         </prop>
191         <status>HTTP/1.1 200 OK</status>
192      </propstat>
193   </response>
194 EOF
195                                 }
196                                 $q->finish;
197
198                                 # And the magical autorename folder
199                                 $r->print(<<"EOF");
200   <response>
201      <href>/webdav/upload/$event/autorename/</href>
202      <propstat>
203         <prop>
204           <resourcetype><collection/></resourcetype>
205           <getcontenttype>text/xml</getcontenttype>
206         </prop>
207         <status>HTTP/1.1 200 OK</status>
208      </propstat>
209   </response>
210 EOF
211                         }
212
213                         $r->print("</multistatus>\n");
214
215                         return Apache2::Const::OK;
216                 } elsif ($r->uri =~ m#^/webdav/upload/([a-zA-Z0-9-]+)/autorename/?$#) {
217                         # The autorename folder is always empty
218                         my $event = $1;
219                         
220                         $r->headers_out->{'content-location'} = "/webdav/upload/$event/autorename/";
221                         
222                         # Check that we do indeed exist
223                         my $ref = $dbh->selectrow_hashref('SELECT count(*) AS numev FROM events WHERE vhost=? AND event=?',
224                                 undef, $r->get_server_name, $event);
225                         if ($ref->{'numev'} != 1) {
226                                 $r->status(404);
227                                 $r->content_type('text/plain; charset=utf-8');
228                                 $r->print("Couldn't find event in database");
229                                 return Apache2::Const::OK;
230                         }
231                         
232                         # OK, list the (empty) directory
233                         $r->print(<<"EOF");
234 <?xml version="1.0" encoding="utf-8"?>
235 <multistatus xmlns="DAV:">
236   <response>
237      <href>/webdav/upload/$event/autorename/</href>
238      <propstat>
239         <prop>
240           <resourcetype><collection/></resourcetype>
241           <getcontenttype>text/xml</getcontenttype>
242         </prop>
243         <status>HTTP/1.1 200 OK</status>
244      </propstat>
245   </response>
246 </multistatus>
247 EOF
248         
249                         return Apache2::Const::OK;
250                 } elsif ($r->uri =~ m#^/webdav/upload/([a-zA-Z0-9-]+)/([a-zA-Z0-9._()-]+)$#) {
251                         # stat a single file
252                         my ($event, $filename) = ($1, $2);
253                         my ($fname, $size, $mtime);
254                         
255                         # check if we have a pending fake file for this
256                         my $ref = $dbh->selectrow_hashref('SELECT count(*) AS numfiles FROM fake_files WHERE event=? AND vhost=? AND filename=? AND expires_at > now()',
257                                 undef, $event, $r->get_server_name, $filename);
258                         if ($ref->{'numfiles'} == 1) {
259                                 $fname = "/dev/null";
260                                 $size = 0;
261                                 $mtime = time;
262                         } else {
263                                 ($fname, $size, $mtime) = Sesse::pr0n::Common::stat_image($r, $event, $filename);
264                         }
265                         
266                         if (!defined($fname)) {
267                                 $r->status(404);
268                                 $r->content_type('text/plain; charset=utf-8');
269                                 $r->print("Couldn't find file");
270                                 return Apache2::Const::OK;
271                         }
272                         my $mime_type = Sesse::pr0n::Common::get_mimetype_from_filename($filename);
273                         
274                         $mtime = POSIX::strftime("%a, %d %b %Y %H:%M:%S GMT", gmtime($mtime));
275                         $r->print(<<"EOF");
276 <?xml version="1.0" encoding="utf-8"?>
277 <multistatus xmlns="DAV:">
278   <response>
279     <href>/webdav/upload/$event/$filename</href>
280     <propstat>
281       <prop>
282         <resourcetype/>
283         <getcontenttype>$mime_type</getcontenttype>
284         <getcontentlength>$size</getcontentlength>
285         <getlastmodified>$mtime</getlastmodified>
286       </prop>
287       <status>HTTP/1.1 200 OK</status>
288     </propstat>
289   </response>
290 </multistatus>
291 EOF
292                         return Apache2::Const::OK;
293                 } elsif ($r->uri =~ m#^/webdav/upload/([a-zA-Z0-9-]+)/autorename/(.{1,250})$#) {
294                         # stat a single file in autorename
295                         my ($event, $filename) = ($1, $2);
296                         my ($fname, $size, $mtime);
297                         
298                         # check if we have a pending fake file for this
299                         my $ref = $dbh->selectrow_hashref('SELECT count(*) AS numfiles FROM fake_files WHERE event=? AND vhost=? AND filename=? AND expires_at > now()',
300                                 undef, $event, $r->get_server_name, $filename);
301                         if ($ref->{'numfiles'} == 1) {
302                                 $fname = "/dev/null";
303                                 $size = 0;
304                                 $mtime = time;
305                         } else {
306                                 # check if we have a "shadow file" for this
307                                 my $ref = $dbh->selectrow_hashref('SELECT id FROM shadow_files WHERE vhost=? AND event=? AND filename=? AND expires_at > now()',
308                                         undef, $r->get_server_name, $event, $filename);
309                                 if (defined($ref)) {
310                                         ($fname, $size, $mtime) = Sesse::pr0n::Common::stat_image_from_id($r, $ref->{'id'});
311                                 }
312                         }
313                         
314                         if (!defined($fname)) {
315                                 $r->status(404);
316                                 $r->content_type('text/plain; charset=utf-8');
317                                 $r->print("Couldn't find file");
318                                 return Apache2::Const::OK;
319                         }
320                         my $mime_type = Sesse::pr0n::Common::get_mimetype_from_filename($filename);
321                         
322                         $mtime = POSIX::strftime("%a, %d %b %Y %H:%M:%S GMT", gmtime($mtime));
323                         $r->print(<<"EOF");
324 <?xml version="1.0" encoding="utf-8"?>
325 <multistatus xmlns="DAV:">
326   <response>
327     <href>/webdav/upload/$event/autorename/$filename</href>
328     <propstat>
329       <prop>
330         <resourcetype/>
331         <getcontenttype>$mime_type</getcontenttype>
332         <getcontentlength>$size</getcontentlength>
333         <getlastmodified>$mtime</getlastmodified>
334       </prop>
335       <status>HTTP/1.1 200 OK</status>
336     </propstat>
337   </response>
338 </multistatus>
339 EOF
340                 } else {
341                         $r->status(404);
342                         $r->content_type('text/plain; charset=utf-8');
343                         $r->print("Couldn't find file");
344                 }
345                 return Apache2::Const::OK;
346         }
347         
348         if ($r->method eq "HEAD" or $r->method eq "GET") {
349                 if ($r->uri !~ m#^/webdav/upload/([a-zA-Z0-9-]+)/(autorename/)?(.{1,250})$#) {
350                         $r->status(404);
351                         $r->content_type('text/xml; charset=utf-8');
352                         $r->print("<?xml version=\"1.0\"?>\n<p>Couldn't find file</p>");
353                         return Apache2::Const::OK;
354                 }
355
356                 my ($event, $autorename, $filename) = ($1, $2, $3);
357                 
358                 # Check if this file really exists
359                 my ($fname, $size, $mtime);
360
361                 # check if we have a pending fake file for this
362                 my $ref = $dbh->selectrow_hashref('SELECT count(*) AS numfiles FROM fake_files WHERE event=? AND vhost=? AND filename=? AND expires_at > now()',
363                         undef, $event, $r->get_server_name, $filename);
364                 if ($ref->{'numfiles'} == 1) {
365                         $fname = "/dev/null";
366                         $size = 0;
367                         $mtime = time;
368                 } else {
369                         # check if we have a "shadow file" for this
370                         if (defined($autorename) && $autorename eq "autorename/") {
371                                 my $ref = $dbh->selectrow_hashref('SELECT id FROM shadow_files WHERE host=? AND event=? AND filename=? AND expires_at > now()',
372                                         undef, $r->get_server_name, $event, $filename);
373                                 if (defined($ref)) {
374                                         ($fname, $size, $mtime) = Sesse::pr0n::Common::stat_image_from_id($r, $ref->{'id'});
375                                 }
376                         } elsif (!defined($fname)) {
377                                 ($fname, $size, $mtime) = Sesse::pr0n::Common::stat_image($r, $event, $filename);
378                         }
379                 }
380                 
381                 if (!defined($fname)) {
382                         $r->status(404);
383                         $r->content_type('text/plain; charset=utf-8');
384                         $r->print("Couldn't find file");
385                         return Apache2::Const::OK;
386                 }
387                 
388                 $r->status(200);
389                 $r->set_content_length($size);
390                 $r->set_last_modified($mtime);
391         
392                 if ($r->method eq "GET") {
393                         $r->sendfile($fname);
394                 }
395                 return Apache2::Const::OK;
396         }
397         
398         if ($r->method eq "PUT") {
399                 if ($r->uri !~ m#^/webdav/upload/([a-zA-Z0-9-]+)/(autorename/)?(.{1,250})$#) {
400                         $r->status(403);
401                         $r->content_type('text/plain; charset=utf-8');
402                         $r->print("No access");
403                         return Apache2::Const::OK;
404                 }
405                 
406                 my ($event, $autorename, $filename) = ($1, $2, $3);
407                 my $size = $r->headers_in->{'content-length'};
408                 if (!defined($size)) {
409                         $size = $r->headers_in->{'x-expected-entity-length'};
410                 }
411                 my $orig_filename = $filename;
412
413                 # Remove evil characters
414                 if ($filename =~ /[^a-zA-Z0-9._()-]/) {
415                         if (defined($autorename) && $autorename eq "autorename/") {
416                                 $filename =~ tr/a-zA-Z0-9.()-/_/c;
417                         } else {
418                                 $r->status(403);
419                                 $r->content_type('text/plain; charset=utf-8');
420                                 $r->print("Illegal characters in filename");
421                                 return Apache2::Const::OK;
422                         }
423                 }
424                 
425                 #
426                 # gnome-vfs and mac os x love to make zero-byte files,
427                 # make them happy
428                 # 
429                 if ($size == 0 || $filename =~ /^\.(_|DS_Store)/) {
430                         $dbh->do('DELETE FROM fake_files WHERE expires_at <= now() OR (event=? AND vhost=? AND filename=?);',
431                                 undef, $event, $r->get_server_name, $filename)
432                                 or dberror($r, "Couldn't prune fake_files");
433                         $dbh->do('INSERT INTO fake_files (vhost,event,filename,expires_at) VALUES (?,?,?,now() + interval \'1 day\');',
434                                 undef, $r->get_server_name, $event, $filename)
435                                 or dberror($r, "Couldn't add file");
436                         $r->content_type('text/plain; charset="utf-8"');
437                         $r->status(201);
438                         $r->print("OK");
439                         $r->log->info("Fake upload of $event/$filename");
440                         return Apache2::Const::OK;
441                 }
442                         
443                 # Get the new ID
444                 my $ref = $dbh->selectrow_hashref("SELECT NEXTVAL('imageid_seq') AS id;");
445                 my $newid = $ref->{'id'};
446                 if (!defined($newid)) {
447                         dberror($r, "Couldn't get new ID");
448                 }
449                 
450                 # Autorename if we need to
451                 if (defined($autorename) && $autorename eq "autorename/") {
452                         my $ref = $dbh->selectrow_hashref("SELECT COUNT(*) AS numfiles FROM images WHERE vhost=? AND event=? AND filename=?",
453                                 undef, $r->get_server_name, $event, $filename)
454                                 or dberror($r, "Couldn't check for existing files");
455                         if ($ref->{'numfiles'} > 0) {
456                                 $r->log->info("Renaming $filename to $newid.jpeg");
457                                 $filename = "$newid.jpeg";
458                         }
459                 }
460                 
461                 {
462                         # Enable transactions and error raising temporarily
463                         local $dbh->{AutoCommit} = 0;
464                         local $dbh->{RaiseError} = 1;
465                         my $fname;
466
467                         # Try to insert this new file
468                         eval {
469                                 $dbh->do('DELETE FROM fake_files WHERE vhost=? AND event=? AND filename=?',
470                                         undef, $r->get_server_name, $event, $filename);
471                                         
472                                 $dbh->do('INSERT INTO images (id,vhost,event,uploadedby,takenby,filename) VALUES (?,?,?,?,?,?)',
473                                         undef, $newid, $r->get_server_name, $event, $user, $takenby, $filename);
474                                 Sesse::pr0n::Common::purge_cache($r, "/$event/");
475
476                                 # Now save the file to disk
477                                 $fname = Sesse::pr0n::Common::get_disk_location($r, $newid);
478                                 open NEWFILE, ">$fname"
479                                         or die "$fname: $!";
480
481                                 my $buf;
482                                 if ($r->read($buf, $size)) {
483                                         print NEWFILE $buf or die "write($fname): $!";
484                                 }
485
486                                 close NEWFILE or die "close($fname): $!";
487                                 
488                                 # Orient stuff correctly
489                                 system("/usr/bin/exifautotran", $fname) == 0
490                                         or die "/usr/bin/exifautotran: $!";
491
492                                 # Make cache while we're at it.
493                                 # Don't do it for the resource forks Mac OS X loves to upload :-(
494                                 if ($filename !~ /^\.(_|DS_Store)/) {
495                                         # FIXME: Ideally we'd want to ensure cache of -1x-1 here as well (for NEFs), but that would
496                                         # preclude mipmapping in its current form.
497                                         Sesse::pr0n::Common::ensure_cached($r, $filename, $newid, undef, undef, "nobox", 80, 64, 320, 256);
498                                 }
499                                 
500                                 # OK, we got this far, commit
501                                 $dbh->commit;
502
503                                 $r->log->notice("Successfully wrote $event/$filename to $fname");
504                         };
505                         if ($@) {
506                                 # Some error occurred, rollback and bomb out
507                                 $dbh->rollback;
508                                 error($r, "Transaction aborted because $@");
509                                 unlink($fname);
510                         }
511                 }
512
513                 # Insert a `shadow file' we can stat the next day or so
514                 if (defined($autorename) && $autorename eq "autorename/") {
515                         $dbh->do('DELETE FROM shadow_files WHERE expires_at <= now() OR (vhost=? AND event=? AND filename=?);',
516                                 undef, $r->get_server_name, $event, $filename)
517                                 or dberror($r, "Couldn't prune shadow_files");
518                         $dbh->do('INSERT INTO shadow_files (vhost,event,filename,id,expires_at) VALUES (?,?,?,?,now() + interval \'1 day\');',
519                                 undef, $r->get_server_name, $event, $orig_filename, $newid)
520                                 or dberror($r, "Couldn't add shadow file");
521                         $r->log->info("Added shadow entry for $event/$filename");
522                 }
523
524                 $r->content_type('text/plain; charset="utf-8"');
525                 $r->status(201);
526                 $r->print("OK");
527
528                 return Apache2::Const::OK;
529         }
530         
531         # Used by the XP publishing wizard -- largely the same as the code above
532         # but vastly simplified. Should we refactor?
533         if ($r->method eq "POST") {
534                 my $apr = Apache2::Request->new($r);
535                 my $client_size = $apr->param('size');
536                 my $event = $apr->param('event');
537                                 
538                 my $file = $apr->upload('image');
539                 my $filename = $file->filename();
540                 if ($client_size != $file->size()) {
541                         $r->content_type('text/plain; charset="utf-8"');
542                         $r->status(403);
543                         $r->print("Client-size resizing detected; refusing automatically");
544
545                         $r->log->info("Client-size resized upload of $event/$filename detected");
546                         return Apache2::Const::OK;
547                 }
548                 
549                 # Ugh, Windows XP seems to be sending this in... something that's not UTF-8, at least
550                 my $takenby_given = Sesse::pr0n::Common::guess_charset($apr->param('takenby'));
551
552                 if (defined($takenby_given) && $takenby_given !~ /^\s*$/ && $takenby_given !~ /[<>&]/ && length($takenby_given) <= 100) {
553                         $takenby = $takenby_given;
554                 }
555                 
556                 my $ne_id = Sesse::pr0n::Common::guess_charset($apr->param('neweventid'));
557                 my $ne_date = Sesse::pr0n::Common::guess_charset($apr->param('neweventdate'));
558                 my $ne_desc = Sesse::pr0n::Common::guess_charset($apr->param('neweventdesc'));
559                 if (defined($ne_id)) {
560                         # Trying to add a new event, let's see if it already exists
561                         my $q = $dbh->prepare('SELECT COUNT(*) AS cnt FROM events WHERE event=? AND vhost=?')
562                                 or dberror($r, "Couldn't prepare event count");
563                         $q->execute($ne_id, $r->get_server_name)
564                                 or dberror($r, "Couldn't execute event count");
565                         my $ref = $q->fetchrow_hashref;
566
567                         if ($ref->{'cnt'} == 0) {
568                                 my @errors = Sesse::pr0n::Common::add_new_event($r, $dbh, $ne_id, $ne_date, $ne_desc);
569                                 if (scalar @errors > 0) {
570                                         die "Couldn't add new event $ne_id: " . join(', ', @errors);
571                                 }
572                         }
573
574                         $event = $ne_id;
575                 }
576
577                 # Remove evil characters
578                 if ($filename =~ /[^a-zA-Z0-9._-]/) {
579                         $filename =~ tr/a-zA-Z0-9.-/_/c;
580                 }
581                 
582                 # Get the new ID
583                 my $ref = $dbh->selectrow_hashref("SELECT NEXTVAL('imageid_seq') AS id;");
584                 my $newid = $ref->{'id'};
585                 if (!defined($newid)) {
586                         dberror($r, "Couldn't get new ID");
587                 }
588                 
589                 # Autorename if we need to
590                 {
591                         my $ref = $dbh->selectrow_hashref("SELECT COUNT(*) AS numfiles FROM images WHERE vhost=? AND event=? AND filename=?",
592                                 undef, $r->get_server_name, $event, $filename)
593                                 or dberror($r, "Couldn't check for existing files");
594                         if ($ref->{'numfiles'} > 0) {
595                                 $r->log->info("Renaming $filename to $newid.jpeg");
596                                 $filename = "$newid.jpeg";
597                         }
598                 }
599                 
600                 {
601                         # Enable transactions and error raising temporarily
602                         local $dbh->{AutoCommit} = 0;
603                         local $dbh->{RaiseError} = 1;
604                         my $fname;
605
606                         # Try to insert this new file
607                         eval {
608                                 $dbh->do('INSERT INTO images (id,vhost,event,uploadedby,takenby,filename) VALUES (?,?,?,?,?,?)',
609                                         undef, $newid, $r->get_server_name, $event, $user, $takenby, $filename);
610
611                                 # Now save the file to disk
612                                 $fname = Sesse::pr0n::Common::get_disk_location($r, $newid);
613                                 open NEWFILE, ">$fname"
614                                         or die "$fname: $!";
615
616                                 my $buf;
617                                 $file->slurp($buf);
618                                 print NEWFILE $buf or die "write($fname): $!";
619                                 close NEWFILE or die "close($fname): $!";
620                                 
621                                 # Orient stuff correctly
622                                 system("/usr/bin/exifautotran", $fname) == 0
623                                         or die "/usr/bin/exifautotran: $!";
624
625                                 # Make cache while we're at it.
626                                 Sesse::pr0n::Common::ensure_cached($r, $filename, $newid, undef, undef, 1, 80, 64, 320, 256, -1, -1);
627                                 
628                                 # OK, we got this far, commit
629                                 $dbh->commit;
630
631                                 $r->log->notice("Successfully wrote $event/$filename to $fname");
632                         };
633                         if ($@) {
634                                 # Some error occurred, rollback and bomb out
635                                 $dbh->rollback;
636                                 error($r, "Transaction aborted because $@");
637                                 unlink($fname);
638                 
639                                 $r->content_type('text/plain; charset="utf-8"');
640                                 $r->status(500);
641                                 $r->print("Error: $@");
642                         }
643                 }
644
645                 $r->content_type('text/plain; charset="utf-8"');
646                 $r->status(201);
647                 $r->print("OK");
648
649                 return Apache2::Const::OK;
650         }
651         
652         # Yes, we fake locks. :-)
653         if ($r->method eq "LOCK") {
654                 if ($r->uri !~ m#^/webdav/upload/([a-zA-Z0-9-]+)/(autorename/)?([a-zA-Z0-9._-]+)$#) {
655                         $r->status(403);
656                         $r->content_type('text/plain; charset=utf-8');
657                         $r->print("No access");
658                         return Apache2::Const::OK;
659                 }
660
661                 my ($event, $autorename, $filename) = ($1, $2, $3);
662                 $autorename = '' if (!defined($autorename));
663                 my $sha1 = Digest::SHA1::sha1_base64("/$event/$autorename$filename");
664
665                 $r->status(200);
666                 $r->content_type('text/xml; charset=utf-8');
667
668                 $r->print(<<"EOF");
669 <?xml version="1.0" encoding="utf-8"?>
670 <prop xmlns="DAV:">
671   <lockdiscovery>
672     <activelock>
673       <locktype><write/></locktype>
674       <lockscope><exclusive/></lockscope>
675       <depth>0</depth>
676       <owner>
677         <href>/webdav/upload/$event/$autorename$filename</href>
678       </owner>
679       <timeout>Second-3600</timeout>
680       <locktoken>
681         <href>opaquelocktoken:$sha1</href>
682       </locktoken>
683     </activelock>
684   </lockdiscovery>
685 </prop>
686 EOF
687                 return Apache2::Const::OK;
688         }
689         
690         if ($r->method eq "UNLOCK") {
691                 $r->content_type('text/plain; charset="utf-8"');
692                 $r->status(200);
693                 $r->print("OK");
694
695                 return Apache2::Const::OK;
696         }
697
698         if ($r->method eq "DELETE") {
699                 if ($r->uri !~ m#^/webdav/upload/([a-zA-Z0-9-]+)/(autorename/)?(\._[a-zA-Z0-9._-]+)$#) {
700                         $r->status(403);
701                         $r->content_type('text/plain; charset=utf-8');
702                         $r->print("No access");
703                         return Apache2::Const::OK;
704                 }
705                 
706                 my ($event, $autorename, $filename) = ($1, $2, $3);
707                 $dbh->do('DELETE FROM images WHERE vhost=? AND event=? AND filename=?',
708                         undef, $r->get_server_name, $event, $filename)
709                         or dberror($r, "Couldn't remove file");
710                 $dbh->do('UPDATE last_picture_cache SET last_update=CURRENT_TIMESTAMP WHERE vhost=? AND event=?',
711                         undef, $r->get_server_name, $event)
712                         or dberror($r, "Couldn't invalidate cache");
713                 $r->status(200);
714                 $r->print("OK");
715
716                 $r->log->info("deleted $event/$filename");
717                 
718                 return Apache2::Const::OK;
719         }
720         
721         if ($r->method eq "MOVE" or
722             $r->method eq "MKCOL" or
723             $r->method eq "RMCOL" or
724             $r->method eq "RENAME" or
725             $r->method eq "COPY") {
726                 $r->content_type('text/plain; charset="utf-8"');
727                 $r->status(403);
728                 $r->print("Sorry, you do not have access to that feature.");
729                 return Apache2::Const::OK;
730         }
731
732         $r->content_type('text/plain; charset=utf-8');
733         $r->log->error("unknown method " . $r->method);
734         $r->status(500);
735         $r->print("Unknown method");
736         
737         return Apache2::Const::OK;
738 }
739
740 1;
741
742