1 # Copyright (C) 2016-2020 all contributors <meta@public-inbox.org>
2 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
4 # HTML body stream for which yields getline+close methods
6 # public-inbox-httpd favors "getline" response bodies to take a
7 # "pull"-based approach to feeding slow clients (as opposed to a
8 # more common "push" model)
9 package PublicInbox::WwwStream;
11 use parent qw(Exporter PublicInbox::GzipFilter);
12 our @EXPORT_OK = qw(html_oneshot);
13 use bytes (); # length
14 use PublicInbox::Hval qw(ascii_html prurl);
15 our $TOR_URL = 'https://www.torproject.org/';
16 our $CODE_URL = 'https://public-inbox.org/public-inbox.git';
20 my $base_url = $ctx->{-inbox}->base_url($ctx->{env});
21 chop $base_url; # no trailing slash for clone
28 $ctx->{base_url} = base_url($ctx);
29 bless $ctx, __PACKAGE__;
32 sub async_eml { # ->{async_eml} for async_blob_cb
34 $ctx->{http_out}->write($ctx->translate($ctx->{cb}->($ctx, $eml)));
39 my $ibx = $ctx->{-inbox};
40 my $desc = ascii_html($ibx->description);
41 my $title = delete($ctx->{-title_html}) // $desc;
42 my $upfx = $ctx->{-upfx} || '';
43 my $help = $upfx.'_/text/help';
44 my $color = $upfx.'_/text/color';
45 my $atom = $ctx->{-atom} || $upfx.'new.atom';
46 my $top = "<b>$desc</b>";
47 my $links = "<a\nhref=\"$help\">help</a> / ".
48 "<a\nhref=\"$color\">color</a> / ".
49 "<a\nhref=\"$atom\">Atom feed</a>";
51 my $q_val = delete($ctx->{-q_value_html}) // '';
52 $q_val = qq(\nvalue="$q_val") if $q_val ne '';
53 # XXX gross, for SearchView.pm
54 my $extra = delete($ctx->{-extra_form_html}) // '';
55 my $action = $upfx eq '' ? './' : $upfx;
56 $top = qq{<form\naction="$action"><pre>$top} .
57 qq{\n<input\nname=q\ntype=text$q_val />} .
59 qq{<input\ntype=submit\nvalue=search />} .
63 $top = '<pre>' . $top . "\n" . $links . '</pre>';
65 "<html><head><title>$title</title>" .
66 qq(<link\nrel=alternate\ntitle="Atom feed"\n).
67 qq(href="$atom"\ntype="application/atom+xml"/>) .
68 $ctx->{www}->style($upfx) .
69 '</head><body>'. $top . (delete($ctx->{-html_tip}) // '');
74 my $u = prurl($env, $CODE_URL);
75 qq(AGPL code for this site: git clone <a\nhref="$u">$u</a>)
80 my $urls = 'Archives are clonable:';
81 my $ibx = $ctx->{-inbox};
82 my $desc = ascii_html($ibx->description);
85 my $http = $ctx->{base_url};
86 my $max = $ibx->max_git_epoch;
87 my $dir = (split(m!/!, $http))[-1];
88 my %seen = ($http => 1);
89 if (defined($max)) { # v2
91 # old parts my be deleted:
92 -d "$ibx->{inboxdir}/git/$i.git" or next;
95 push @urls, "$url $dir/git/$i.git";
101 # FIXME: epoch splits can be different in other repositories,
102 # use the "cloneurl" file as-is for now:
103 foreach my $u (@{$ibx->cloneurl}) {
105 push @urls, $u =~ /\Ahttps?:/ ? qq(<a\nhref="$u">$u</a>) : $u;
108 if (defined($max) || scalar(@urls) > 1) {
110 join("\n", map { "\tgit clone --mirror $_" } @urls);
112 $urls .= " git clone --mirror $urls[0]";
115 my $addrs = $ibx->{address};
116 $addrs = join(' ', @$addrs) if ref($addrs) eq 'ARRAY';
120 # If you have public-inbox 1.1+ installed, you may
121 # initialize and index your mirror using the following commands:
122 public-inbox-init -V2 $ibx->{name} $dir/ $http \\
124 public-inbox-index $dir
130 my $cfg_link = ($ctx->{-upfx} // '').'_/text/config/raw';
131 $urls .= qq(\nExample <a\nhref="$cfg_link">config snippet</a> for mirrors\n);
132 my @nntp = map { qq(<a\nhref="$_">$_</a>) } @{$ibx->nntp_url};
135 $urls .= @nntp == 1 ? 'Newsgroup' : 'Newsgroups are';
136 $urls .= ' available over NNTP:';
137 $urls .= "\n\t" . join("\n\t", @nntp) . "\n";
139 if ($urls =~ m!\b[^:]+://\w+\.onion/!) {
140 $urls .= "\n note: .onion URLs require Tor: ";
141 $urls .= qq[<a\nhref="$TOR_URL">$TOR_URL</a>];
143 '<hr><pre>'.join("\n\n",
146 code_footer($ctx->{env})
147 ).'</pre></body></html>';
150 # callback for HTTP.pm (and any other PSGI servers)
153 my $cb = $ctx->{cb} or return;
154 while (defined(my $x = $cb->($ctx))) { # x = smsg or scalar non-ref
155 if (ref($x)) { # smsg
156 my $eml = $ctx->{-inbox}->smsg_eml($x) or next;
158 return $ctx->translate($cb->($ctx, $eml));
160 return $ctx->translate($x);
164 $ctx->zflush(_html_end($ctx));
167 sub html_oneshot ($$;$) {
168 my ($ctx, $code, $sref) = @_;
169 my $res_hdr = [ 'Content-Type' => 'text/html; charset=UTF-8',
170 'Content-Length' => undef ];
171 bless $ctx, __PACKAGE__;
172 $ctx->{gz} = PublicInbox::GzipFilter::gz_or_noop($res_hdr, $ctx->{env});
173 $ctx->{base_url} //= do {
174 $ctx->zmore(html_top($ctx));
177 $ctx->zmore($$sref) if $sref;
178 my $bdy = $ctx->zflush(_html_end($ctx));
179 $res_hdr->[3] = bytes::length($bdy);
180 [ $code, $res_hdr, [ $bdy ] ]
184 my ($http) = @_; # PublicInbox::HTTP
185 my $ctx = $http->{forward} or return;
187 if (my $smsg = $ctx->{smsg} = $ctx->{cb}->($ctx)) {
188 $ctx->smsg_blob($smsg);
190 $ctx->{http_out}->write(
191 $ctx->translate(_html_end($ctx)));
192 $ctx->close; # GzipFilter->close
199 my ($ctx, $code, $cb) = @_;
200 my $res_hdr = [ 'Content-Type' => 'text/html; charset=UTF-8' ];
202 $ctx->psgi_response($code, $res_hdr, \&async_next, \&async_eml);