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 $simple->body_set(""); # save some memory
60 push @messages, $simple;
64 my $th = Mail::Thread->new(@messages);
67 "<html><head><title>$title</title>" .
68 '<link rel=alternate title=Atom.feed href=' .
69 $feed_opts->{atomurl} . ' type="application/atom+xml"/>' .
70 '</head><body><pre>');
71 push @args, $feed_opts->{midurl};
72 dump_html_line($_, 0, \@args) for $th->rootset;
73 $args[0] . '</pre></html>';
78 sub each_recent_blob {
82 # we could use git log -z, but, we already know ssoma will not
83 # leave us with filenames with spaces in them..
84 my $cmd = "git log --no-notes --no-color --raw -r --no-abbrev HEAD |";
85 my $pid = open my $log, $cmd or die "open `$cmd' pipe failed: $!\n";
88 foreach my $line (<$log>) {
89 if ($line =~ /^:000000 100644 0{40} ([a-f0-9]{40})/) {
91 next if $deleted{$add};
94 } elsif ($line =~ /^:100644 000000 ([a-f0-9]{40}) 0{40}/) {
102 # private functions below
105 my $pi_config = $args->{pi_config};
106 my $listname = $args->{listname};
107 my $cgi = $args->{cgi};
110 if ($pi_config && defined $listname && length $listname) {
111 foreach my $key (qw(description address)) {
112 $rv{$key} = $pi_config->get($listname, $key) || "";
117 my $cgi_url = $cgi->self_url;
118 $url_base = $cgi_url;
119 if ($url_base =~ s!/(?:|index\.html)?\z!!) {
120 $rv{atomurl} = "$url_base/index.atom.xml";
122 $url_base =~ s!/?(?:index|all)\.atom\.xml\z!!;
123 $rv{atomurl} = $cgi_url;
126 $url_base = "http://example.com";
127 $rv{atomurl} = "$url_base/index.atom.xml";
129 $rv{url} ||= "$url_base/";
130 $rv{midurl} = "$url_base/m/";
131 $rv{fullurl} = "$url_base/f/";
137 my ($simple, $name) = @_;
138 my $val = $simple->header($name);
139 return "" unless defined $val;
140 $val =~ tr/\t\r\n / /s;
141 encode('utf8', decode('MIME-Header', $val));
146 my @t = eval { strptime($date) };
148 scalar(@t) ? strftime(DATEFMT, @t) : 0;
151 # returns 0 (skipped) or 1 (added)
153 my ($feed_opts, $feed, $add, $top) = @_;
155 # we can use git cat-file --batch if performance becomes a
156 # problem, but I doubt it...
157 my $str = `git cat-file blob $add`;
159 my $mime = Email::MIME->new($str);
161 if ($top && $mime->header("In-Reply-To")) {
165 my $midurl = $feed_opts->{midurl} || 'http://example.com/m/';
166 my $fullurl = $feed_opts->{fullurl} || 'http://example.com/f/';
168 my $content = PublicInbox::View->as_feed_entry($mime, $fullurl);
169 defined($content) or return 0;
171 my $mid = utf8_header($mime, "Message-ID") or return 0;
172 $mid =~ s/\A<//; $mid =~ s/>\z//;
174 my $subject = utf8_header($mime, "Subject") || "";
175 length($subject) or return 0;
177 my $from = utf8_header($mime, "From") or return 0;
179 my @from = Email::Address->parse($from);
180 my $name = $from[0]->name;
181 defined $name or $name = "";
182 my $email = $from[0]->address;
183 defined $email or $email = "";
185 my $url = $midurl . uri_escape($mid);
186 my $date = utf8_header($mime, "Date");
188 $date = feed_date($date) or return 0;
190 author => { name => $name, email => $email },
193 content => { type => "html", content => $content },
201 my ($self, $level, $args) = @_; # args => [ $html, $midurl ]
202 $args->[0] .= (' ' x $level);
203 if ($self->message) {
204 my $simple = $self->message;
205 my $subj = utf8_header($simple, "Subject");
206 my $mid = utf8_header($simple, "Message-ID");
209 my $url = $args->[1] . uri_escape($mid);
210 my $from = utf8_header($simple, "From");
211 my @from = Email::Address->parse($from);
212 $from = $from[0]->name;
213 (defined($from) && length($from)) or $from = $from[0]->address;
214 $from = escapeHTML($from);
215 $subj = escapeHTML($subj);
216 $args->[0] .= "<a href=$url>`-> $subj</a> $from\n";
218 $args->[0] .= "[ Message not available ]\n";
220 dump_html_line($self->child, $level+1, $args) if $self->child;
221 dump_html_line($self->next, $level, $args) if $self->next;