+# Copyright (C) 2016 all contributors <meta@public-inbox.org>
+# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
+#
+# HTML body stream for which yields getline+close methods
+package PublicInbox::WwwStream;
+use strict;
+use warnings;
+use PublicInbox::Hval qw(ascii_html);
+use URI;
+use constant PI_URL => 'https://public-inbox.org/README.html';
+
+sub new {
+ my ($class, $ctx, $cb) = @_;
+ bless { nr => 0, cb => $cb, ctx => $ctx }, $class;
+}
+
+sub _html_top ($) {
+ my ($self) = @_;
+ my $ctx = $self->{ctx};
+ my $obj = $ctx->{-inbox};
+ my $desc = ascii_html($obj->description);
+ my $title = $ctx->{-title_html} || $desc;
+ my $upfx = $ctx->{-upfx} || '';
+ my $atom = $ctx->{-atom} || $upfx.'new.atom';
+ my $top = "<b>$desc</b> (<a\nhref=\"$atom\">Atom feed</a>)";
+ if ($obj->search) {
+ $top = qq{<form\naction="$upfx"><pre>$top} .
+ qq{ <input\nname=q\ntype=text />} .
+ qq{<input\ntype=submit\nvalue=search />} .
+ q{</pre></form>}
+ } else {
+ $top = '<pre>' . $top . '</pre>';
+ }
+ "<html><head><title>$title</title>" .
+ "<link\nrel=alternate\ntitle=\"Atom feed\"\n".
+ "href=\"$atom\"\ntype=\"application/atom+xml\"/>" .
+ PublicInbox::Hval::STYLE .
+ "</head><body>$top";
+}
+
+sub _html_end {
+ my ($self) = @_;
+ my $urls = 'Archives are clone-able:';
+ my $ctx = $self->{ctx};
+ my $obj = $ctx->{-inbox};
+ my $desc = ascii_html($obj->description);
+ my @urls = @{$obj->cloneurl};
+ my %seen = map { $_ => 1 } @urls;
+
+ # FIXME: cleanup
+ my $env = $ctx->{env};
+ my $scheme = $env->{'psgi.url_scheme'};
+ my $host_port = $env->{HTTP_HOST} ||
+ "$env->{SERVER_NAME}:$env->{SERVER_PORT}";
+ my $http = "$scheme://$host_port".($env->{SCRIPT_NAME} || '/');
+ $http = URI->new($http . $obj->{name})->canonical->as_string;
+ $seen{$http} or unshift @urls, $http;
+ if (scalar(@urls) == 1) {
+ $urls .= " git clone --mirror $urls[0]";
+ } else {
+ $urls .= "\n" .
+ join("\n", map { "\tgit clone --mirror $_" } @urls);
+ }
+ my $url = PublicInbox::Hval::prurl($ctx->{env}, PI_URL);
+ '<pre>'.join("\n",
+ '- ' . $desc,
+ $urls,
+ 'served with software from public-inbox: '
+ ."<a\nhref=\"$url\">$url</a>",
+ ).'</pre></body></html>';
+}
+
+sub getline {
+ my ($self) = @_;
+ my $nr = $self->{nr}++;
+
+ return _html_top($self) if $nr == 0;
+
+ if (my $mid = $self->{cb}) { # middle
+ $mid = $mid->($nr, $self->{ctx}) and return $mid;
+ }
+
+ delete $self->{cb} ? _html_end($self) : undef;
+}
+
+sub close {}
+
+1;