1 # Copyright (C) 2013, Eric Wong <normalperson@yhbt.net> and all contributors
2 # License: AGPLv3 or later (https://www.gnu.org/licenses/agpl-3.0.txt)
3 package PublicInbox::Feed;
8 use Date::Parse qw(strptime str2time);
10 eval { require Git }; # this is GPLv2+, so we are OK to use it
12 DATEFMT => '%Y-%m-%dT%H:%M:%SZ',
16 # FIXME: workaround https://rt.cpan.org/Public/Bug/Display.html?id=22817
20 my ($class, $args) = @_;
21 require XML::Atom::SimpleFeed;
22 require PublicInbox::View;
24 my $max = $args->{max} || MAX_PER_PAGE;
25 my $top = $args->{top}; # bool
27 local $ENV{GIT_DIR} = $args->{git_dir};
28 my $feed_opts = get_feedopts($args);
29 my $addr = $feed_opts->{address};
30 $addr = $addr->[0] if ref($addr);
31 my $feed = XML::Atom::SimpleFeed->new(
32 title => $feed_opts->{description} || "unnamed feed",
33 link => $feed_opts->{url} || "http://example.com/",
36 href => $feed_opts->{atomurl} ||
37 "http://example.com/atom.xml",
39 id => 'mailto:' . ($addr || 'public-inbox@example.com'),
40 updated => POSIX::strftime(DATEFMT, gmtime),
43 my $git = try_git_pm($args->{git_dir});
44 each_recent_blob($args, sub {
46 add_to_feed($feed_opts, $feed, $add, $top, $git);
51 sub generate_html_index {
52 my ($class, $args) = @_;
55 my $max = $args->{max} || MAX_PER_PAGE;
56 my $top = $args->{top}; # bool
57 local $ENV{GIT_DIR} = $args->{git_dir};
58 my $feed_opts = get_feedopts($args);
60 my $title = $feed_opts->{description} || '';
61 $title = PublicInbox::Hval->new_oneline($title)->as_html;
64 my $git = try_git_pm($args->{git_dir});
65 my $last = each_recent_blob($args, sub {
66 my $mime = do_cat_mail($git, $_[0])
68 if ($top && ($mime->header('In-Reply-To') ||
69 $mime->header('References'))) {
72 $mime->body_set(''); # save some memory
74 my $t = eval { str2time($mime->header('Date')) };
75 defined($t) or $t = 0;
76 $mime->header_set('X-PI-Date', $t);
77 push @messages, $mime;
81 my $th = Mail::Thread->new(@messages);
84 "<html><head><title>$title</title>" .
85 '<link rel="alternate" title="Atom feed" href="' .
86 $feed_opts->{atomurl} . '" type="application/atom+xml"/>' .
87 '</head><body><pre>');
88 push @out, $feed_opts->{midurl};
90 # sort by date, most recent at top
93 $b->topmost->message->header('X-PI-Date') <=>
94 $a->topmost->message->header('X-PI-Date')
97 dump_html_line($_, 0, \@out) for $th->rootset;
99 my $footer = nav_footer($args->{cgi}, $last);
100 $footer = "<hr /><pre>$footer</pre>" if $footer;
101 $out[0] . "</pre>$footer</html>";
107 my ($cgi, $last) = @_;
109 my $old_r = $cgi->param('r');
114 $next = $cgi->path_info . "?r=$last";
115 $next = qq!<a href="$next">next</a>!;
118 $head = $cgi->path_info;
119 $head = qq!<a href="$head">head</a>!;
124 sub each_recent_blob {
125 my ($args, $cb) = @_;
126 my $max = $args->{max} || MAX_PER_PAGE;
127 my $hex = '[a-f0-9]';
128 my $addmsg = qr!^:000000 100644 \S+ \S+ A\t(${hex}{2}/${hex}{38})$!;
129 my $delmsg = qr!^:100644 000000 \S+ \S+ D\t(${hex}{2}/${hex}{38})$!;
130 my $refhex = qr/${hex}{4,40}(?:~\d+)?/;
131 my $cgi = $args->{cgi};
133 # revision ranges may be specified
135 my $r = $cgi->param('r') if $cgi;
136 if ($r && ($r =~ /\A(?:$refhex\.\.)?$refhex\z/o)) {
140 # get recent messages
141 # we could use git log -z, but, we already know ssoma will not
142 # leave us with filenames with spaces in them..
143 my @cmd = qw/git log --no-notes --no-color --raw -r/;
146 my $pid = open(my $log, '-|', @cmd) or
147 die('open `'.join(' ', @cmd) . " pipe failed: $!\n");
148 my %deleted; # only an optimization at this point
152 while (my $line = <$log>) {
153 if ($line =~ /$addmsg/o) {
155 next if $deleted{$add};
161 } elsif ($line =~ /$delmsg/o) {
163 } elsif ($line =~ /^commit (${hex}{40})/) {
169 while (my $line = <$log>) {
170 if ($line =~ /^commit (${hex}{40})/) {
176 push @commits, undef;
179 close $log; # we may EPIPE here
184 # private functions below
187 my $pi_config = $args->{pi_config};
188 my $listname = $args->{listname};
189 my $cgi = $args->{cgi};
191 if (open my $fh, '<', "$args->{git_dir}/description") {
192 chomp($rv{description} = <$fh>);
196 if ($pi_config && defined $listname && length $listname) {
197 foreach my $key (qw(address)) {
198 $rv{$key} = $pi_config->get($listname, $key) || "";
203 my $path_info = $cgi->path_info;
205 if (ref($cgi) eq 'CGI') {
206 $base = $cgi->url(-base);
208 $base = "${$cgi->base}";
211 $url_base = $path_info;
212 if ($url_base =~ s!/(?:|index\.html)?\z!!) {
213 $rv{atomurl} = "$base$url_base/atom.xml";
215 $url_base =~ s!/atom\.xml\z!!;
216 $rv{atomurl} = $base . $path_info;
217 $url_base = $base . $url_base; # XXX is this needed?
220 $url_base = "http://example.com";
221 $rv{atomurl} = "$url_base/atom.xml";
223 $rv{url} ||= "$url_base/";
224 $rv{midurl} = "$url_base/m/";
225 $rv{fullurl} = "$url_base/f/";
231 my ($mime, $name) = @_;
232 PublicInbox::Hval->new_oneline($mime->header($name))->raw;
237 my @t = eval { strptime($date) };
239 scalar(@t) ? POSIX::strftime(DATEFMT, @t) : 0;
242 # returns 0 (skipped) or 1 (added)
244 my ($feed_opts, $feed, $add, $top, $git) = @_;
246 my $mime = do_cat_mail($git, $add) or return 0;
247 if ($top && $mime->header('In-Reply-To')) {
251 my $midurl = $feed_opts->{midurl} || 'http://example.com/m/';
252 my $fullurl = $feed_opts->{fullurl} || 'http://example.com/f/';
254 my $mid = $mime->header_obj->header_raw('Message-ID');
255 defined $mid or return 0;
256 $mid = PublicInbox::Hval->new_msgid($mid);
257 my $href = $mid->as_href;
258 my $content = PublicInbox::View->as_feed_entry($mime,
259 "$fullurl$href.html");
260 defined($content) or return 0;
262 my $subject = mime_header($mime, 'Subject') or return 0;
264 my $from = mime_header($mime, 'From') or return 0;
265 my @from = Email::Address->parse($from);
266 my $name = $from[0]->name;
267 defined $name or $name = "";
268 my $email = $from[0]->address;
269 defined $email or $email = "";
271 my $date = $mime->header('Date');
272 $date = PublicInbox::Hval->new_oneline($date);
273 $date = feed_date($date->raw) or return 0;
276 my (@uuid5) = ($add =~ m!\A($h{8})($h{4})($h{4})($h{4})($h{12})!o);
279 author => { name => $name, email => $email },
282 content => { type => 'xhtml', content => $content },
283 link => $midurl . $href,
284 id => 'urn:uuid:' . join('-', @uuid5),
290 my ($self, $level, $args) = @_; # args => [ $html, $midurl ]
291 if ($self->message) {
292 $args->[0] .= (' ' x $level);
293 my $mime = $self->message;
294 my $subj = $mime->header('Subject');
295 my $mid = $mime->header_obj->header_raw('Message-ID');
296 $mid = PublicInbox::Hval->new_msgid($mid);
297 my $url = $args->[1] . $mid->as_href;
298 my $from = mime_header($mime, 'From');
300 my @from = Email::Address->parse($from);
301 $from = $from[0]->name;
302 (defined($from) && length($from)) or $from = $from[0]->address;
304 $from = PublicInbox::Hval->new_oneline($from)->as_html;
305 $subj = PublicInbox::Hval->new_oneline($subj)->as_html;
306 $args->[0] .= "<a href=\"$url.html\">$subj</a> $from\n";
308 dump_html_line($self->child, $level+1, $args) if $self->child;
309 dump_html_line($self->next, $level, $args) if $self->next;
314 eval { Git->repository(Directory => $dir) };
318 my ($git, $path) = @_;
321 open my $fh, '>', \$str or
322 die "failed to setup string handle: $!\n";
327 local $SIG{__WARN__} = sub { $err .= $_[0] };
328 $bytes = $git->cat_blob("HEAD:$path", $fh);
330 close $fh or die "failed to close string handle: $!\n";
332 if ($bytes < 0 && $err &&
333 $err !~ /doesn't exist in the repository/) {
336 return if $bytes <= 0;
338 $str = `git cat-file blob HEAD:$path`;
339 return if $? != 0 || length($str) == 0;
341 Email::MIME->new($str);