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;
6 use XML::Atom::SimpleFeed;
9 use URI::Escape qw/uri_escape/;
10 use Encode qw/encode decode/;
11 use Encode::MIME::Header;
12 use CGI qw(escapeHTML);
13 use POSIX qw(strftime);
14 use Date::Parse qw(strptime);
15 use constant DATEFMT => '%Y-%m-%dT%H:%M:%SZ';
16 use PublicInbox::View;
21 my ($class, $args) = @_;
22 my $max = $args->{max} || 25;
23 my $top = $args->{top}; # bool
25 local $ENV{GIT_DIR} = $args->{git_dir};
26 my $feed_opts = get_feedopts($args);
28 my $feed = XML::Atom::SimpleFeed->new(
29 title => $feed_opts->{description} || "unnamed feed",
30 link => $feed_opts->{url} || "http://example.com/",
33 href => $feed_opts->{atomurl} ||
34 "http://example.com/atom",
36 id => $feed_opts->{address} || 'public-inbox@example.com',
37 updated => strftime(DATEFMT, gmtime),
40 each_recent_blob($max, sub {
42 add_to_feed($feed_opts, $feed, $add, $top);
47 sub generate_html_index {
48 my ($class, $args) = @_;
49 my $max = $args->{max} || 50;
50 my $top = $args->{top}; # bool
51 local $ENV{GIT_DIR} = $args->{git_dir};
52 my $feed_opts = get_feedopts($args);
53 my $title = escapeHTML($feed_opts->{description} || "");
55 each_recent_blob($max, sub {
56 my $str = `git cat-file blob $_[0]`;
58 my $simple = Email::Simple->new($str);
59 if ($top && ($simple->header("In-Reply-To") ||
60 $simple->header("References"))) {
63 $simple->body_set(""); # save some memory
64 push @messages, $simple;
68 my $th = Mail::Thread->new(@messages);
71 "<html><head><title>$title</title>" .
72 '<link rel=alternate title=Atom.feed href=' .
73 $feed_opts->{atomurl} . ' type="application/atom+xml"/>' .
74 '</head><body><pre>');
75 push @args, $feed_opts->{midurl};
76 dump_html_line($_, 0, \@args) for $th->rootset;
77 $args[0] . '</pre></html>';
82 sub each_recent_blob {
86 # we could use git log -z, but, we already know ssoma will not
87 # leave us with filenames with spaces in them..
88 my $cmd = "git log --no-notes --no-color --raw -r --no-abbrev HEAD |";
89 my $pid = open my $log, $cmd or die "open `$cmd' pipe failed: $!\n";
92 foreach my $line (<$log>) {
93 if ($line =~ /^:000000 100644 0{40} ([a-f0-9]{40})/) {
95 next if $deleted{$add};
98 } elsif ($line =~ /^:100644 000000 ([a-f0-9]{40}) 0{40}/) {
106 # private functions below
109 my $pi_config = $args->{pi_config};
110 my $listname = $args->{listname};
111 my $cgi = $args->{cgi};
114 if ($pi_config && defined $listname && length $listname) {
115 foreach my $key (qw(description address)) {
116 $rv{$key} = $pi_config->get($listname, $key) || "";
121 my $cgi_url = $cgi->self_url;
122 $url_base = $cgi_url;
123 if ($url_base =~ s!/(?:|index\.html)?\z!!) {
124 $rv{atomurl} = "$url_base/index.atom.xml";
126 $url_base =~ s!/?(?:index|all)\.atom\.xml\z!!;
127 $rv{atomurl} = $cgi_url;
130 $url_base = "http://example.com";
131 $rv{atomurl} = "$url_base/index.atom.xml";
133 $rv{url} ||= "$url_base/";
134 $rv{midurl} = "$url_base/m/";
135 $rv{fullurl} = "$url_base/f/";
141 my ($simple, $name) = @_;
142 my $val = $simple->header($name);
143 return "" unless defined $val;
144 $val =~ tr/\t\r\n / /s;
145 encode('utf8', decode('MIME-Header', $val));
150 my @t = eval { strptime($date) };
152 scalar(@t) ? strftime(DATEFMT, @t) : 0;
155 # returns 0 (skipped) or 1 (added)
157 my ($feed_opts, $feed, $add, $top) = @_;
159 # we can use git cat-file --batch if performance becomes a
160 # problem, but I doubt it...
161 my $str = `git cat-file blob $add`;
163 my $mime = Email::MIME->new($str);
165 if ($top && $mime->header("In-Reply-To")) {
169 my $midurl = $feed_opts->{midurl} || 'http://example.com/m/';
170 my $fullurl = $feed_opts->{fullurl} || 'http://example.com/f/';
172 my $content = PublicInbox::View->as_feed_entry($mime, $fullurl);
173 defined($content) or return 0;
175 my $mid = utf8_header($mime, "Message-ID") or return 0;
176 $mid =~ s/\A<//; $mid =~ s/>\z//;
178 my $subject = utf8_header($mime, "Subject") || "";
179 length($subject) or return 0;
181 my $from = utf8_header($mime, "From") or return 0;
183 my @from = Email::Address->parse($from);
184 my $name = $from[0]->name;
185 defined $name or $name = "";
186 my $email = $from[0]->address;
187 defined $email or $email = "";
189 my $url = $midurl . uri_escape($mid);
190 my $date = utf8_header($mime, "Date");
192 $date = feed_date($date) or return 0;
194 author => { name => $name, email => $email },
197 content => { type => "html", content => $content },
205 my ($self, $level, $args) = @_; # args => [ $html, $midurl ]
206 $args->[0] .= (' ' x $level);
207 if ($self->message) {
208 my $simple = $self->message;
209 my $subj = utf8_header($simple, "Subject");
210 my $mid = utf8_header($simple, "Message-ID");
213 my $url = $args->[1] . uri_escape($mid);
214 my $from = utf8_header($simple, "From");
215 my @from = Email::Address->parse($from);
216 $from = $from[0]->name;
217 (defined($from) && length($from)) or $from = $from[0]->address;
218 $from = escapeHTML($from);
219 $subj = escapeHTML($subj);
220 $args->[0] .= "<a href=$url>`-> $subj</a> $from\n";
222 $args->[0] .= "[ Message not available ]\n";
224 dump_html_line($self->child, $level+1, $args) if $self->child;
225 dump_html_line($self->next, $level, $args) if $self->next;