#
# HTML body stream for which yields getline+close methods
#
# public-inbox-httpd favors "getline" response bodies to take a
# "pull"-based approach to feeding slow clients (as opposed to a
# more common "push" model)
package PublicInbox::WwwStream;
use strict;
use warnings;
use PublicInbox::Hval qw(ascii_html);
our $TOR_URL = 'https://www.torproject.org/';
our $CODE_URL = 'https://public-inbox.org/public-inbox.git';
# noop for HTTP.pm (and any other PSGI servers)
sub close {}
sub new {
my ($class, $ctx, $cb) = @_;
my $base_url = $ctx->{-inbox}->base_url($ctx->{env});
chop $base_url; # no trailing slash for clone
bless {
nr => 0,
cb => $cb || *close,
ctx => $ctx,
base_url => $base_url,
}, $class;
}
sub response {
my ($class, $ctx, $code, $cb) = @_;
[ $code, [ 'Content-Type', 'text/html; charset=UTF-8' ],
$class->new($ctx, $cb) ]
}
sub _html_top ($) {
my ($self) = @_;
my $ctx = $self->{ctx};
my $ibx = $ctx->{-inbox};
my $desc = ascii_html($ibx->description);
my $title = $ctx->{-title_html} || $desc;
my $upfx = $ctx->{-upfx} || '';
my $help = $upfx.'_/text/help';
my $color = $upfx.'_/text/color';
my $atom = $ctx->{-atom} || $upfx.'new.atom';
my $tip = $ctx->{-html_tip} || '';
my $top = "$desc";
my $links = "help / ".
"color / ".
"Atom feed";
if ($ibx->search) {
my $q_val = $ctx->{-q_value_html};
if (defined $q_val && $q_val ne '') {
$q_val = qq(\nvalue="$q_val");
} else {
$q_val = '';
}
# XXX gross, for SearchView.pm
my $extra = $ctx->{-extra_form_html} || '';
my $action = $upfx eq '' ? './' : $upfx;
$top = qq{}
} else {
$top = '' . $top . "\n" . $links . '
';
}
"$title" .
"" .
$ctx->{www}->style($upfx) .
"". $top . $tip;
}
sub code_footer ($) {
my ($env) = @_;
my $u = PublicInbox::Hval::prurl($env, $CODE_URL);
qq(AGPL code for this site: git clone $u)
}
sub _html_end {
my ($self) = @_;
my $urls = 'Archives are clonable:';
my $ctx = $self->{ctx};
my $ibx = $ctx->{-inbox};
my $desc = ascii_html($ibx->description);
my (%seen, @urls);
my $http = $self->{base_url};
my $max = $ibx->max_git_epoch;
my $dir = (split(m!/!, $http))[-1];
if (defined($max)) { # v2
$seen{$http} = 1;
for my $i (0..$max) {
# old parts my be deleted:
-d "$ibx->{inboxdir}/git/$i.git" or next;
my $url = "$http/$i";
$seen{$url} = 1;
push @urls, "$url $dir/git/$i.git";
}
} else { # v1
$seen{$http} = 1;
push @urls, $http;
}
# FIXME: epoch splits can be different in other repositories,
# use the "cloneurl" file as-is for now:
foreach my $u (@{$ibx->cloneurl}) {
next if $seen{$u};
$seen{$u} = 1;
push @urls, $u =~ /\Ahttps?:/ ? qq($u) : $u;
}
if (defined($max) || scalar(@urls) > 1) {
$urls .= "\n" .
join("\n", map { "\tgit clone --mirror $_" } @urls);
} else {
$urls .= " git clone --mirror $urls[0]";
}
if (defined $max) {
my $addrs = $ibx->{address};
$addrs = join(' ', @$addrs) if ref($addrs) eq 'ARRAY';
$urls .= <{name} $dir/ $http \\
$addrs
public-inbox-index $dir
EOF
} else { # v1
$urls .= "\n";
}
my $cfg_link = ($ctx->{-upfx} // '').'_/text/config/raw';
$urls .= qq(\nExample config snippet for mirrors\n);
my @nntp = map { qq($_) } @{$ibx->nntp_url};
if (@nntp) {
$urls .= "\n";
$urls .= @nntp == 1 ? 'Newsgroup' : 'Newsgroups are';
$urls .= ' available over NNTP:';
$urls .= "\n\t" . join("\n\t", @nntp) . "\n";
}
if ($urls =~ m!\b[^:]+://\w+\.onion/!) {
$urls .= "\n note: .onion URLs require Tor: ";
$urls .= qq[$TOR_URL];
}
'
'.join("\n\n",
$desc,
$urls,
code_footer($ctx->{env})
).'
';
}
# callback for HTTP.pm (and any other PSGI servers)
sub getline {
my ($self) = @_;
my $nr = $self->{nr}++;
return _html_top($self) if $nr == 0;
if (my $middle = $self->{cb}) {
$middle = $middle->($nr, $self->{ctx}) and return $middle;
}
delete $self->{cb} ? _html_end($self) : undef;
}
1;