user/dev discussion of public-inbox itself
 help / color / mirror / code / Atom feed
6d7c447fe6a2ecc7880cd6119e41c788dd966c96 blob 5897 bytes (raw)

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
 
# Copyright (C) 2016-2021 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 for
# generic PSGI servers and callbacks for public-inbox-httpd.
#
# See PublicInbox::GzipFilter parent class for more info.
package PublicInbox::WwwStream;
use strict;
use v5.10.1;
use parent qw(Exporter PublicInbox::GzipFilter);
our @EXPORT_OK = qw(html_oneshot);
use PublicInbox::Hval qw(ascii_html prurl ts2str);

our $CODE_URL = [ qw(
http://7fh6tueqddpjyxjmgtdiueylzoqt6pt7hec3pukyptlmohoowvhde4yd.onion/public-inbox.git
https://public-inbox.org/public-inbox.git) ];

sub base_url ($) {
	my $ctx = shift;
	my $base_url = $ctx->{ibx}->base_url($ctx->{env});
	chop $base_url; # no trailing slash for clone
	$base_url;
}

sub init {
	my ($ctx, $cb) = @_;
	$ctx->{cb} = $cb;
	$ctx->{base_url} = base_url($ctx);
	bless $ctx, __PACKAGE__;
}

sub async_eml { # for async_blob_cb
	my ($ctx, $eml) = @_;
	$ctx->write($ctx->{cb}->($ctx, $eml));
}

sub html_top ($) {
	my ($ctx) = @_;
	my $ibx = $ctx->{ibx};
	my $desc = ascii_html($ibx->description);
	my $title = delete($ctx->{-title_html}) // $desc;
	my $upfx = $ctx->{-upfx} || '';
	my $atom = $ctx->{-atom} || $upfx.'new.atom';
	my $top = "<b>$desc</b>";
	if (my $t_max = $ctx->{-t_max}) {
		$t_max = ts2str($t_max);
		$top = qq(<a\nhref="$upfx?t=$t_max">$top</a>);
	# we had some kind of query, link to /$INBOX/?t=YYYYMMDDhhmmss
	} elsif ($ctx->{qp}->{t}) {
		$top = qq(<a\nhref="./">$top</a>);
	} elsif (length($upfx)) {
		$top = qq(<a\nhref="$upfx">$top</a>);
	}
	my $code = $ibx->{coderepo} ? qq( / <a\nhref=#code>code</a>) : '';
	# id=mirror must exist for legacy bookmarks
	my $links = qq(<a\nhref="${upfx}_/text/help/">help</a> / ).
			qq(<a\nhref="${upfx}_/text/color/">color</a> / ).
			qq(<a\nid=mirror) .
			qq(\nhref="${upfx}_/text/mirror/">mirror</a>$code / ).
			qq(<a\nhref="$atom">Atom feed</a>);
	if ($ibx->isrch) {
		my $q_val = delete($ctx->{-q_value_html}) // '';
		$q_val = qq(\nvalue="$q_val") if $q_val ne '';
		# XXX gross, for SearchView.pm
		my $extra = delete($ctx->{-extra_form_html}) // '';
		my $action = $upfx eq '' ? './' : $upfx;
		$top = qq{<form\naction="$action"><pre>$top} .
			  qq{\n<input\nname=q\ntype=text$q_val />} .
			  $extra .
			  qq{<input\ntype=submit\nvalue=search />} .
			  ' ' . $links .
			  q{</pre></form>}
	} else {
		$top = '<pre>' . $top . "\n" . $links . '</pre>';
	}
	"<html><head><title>$title</title>" .
		qq(<link\nrel=alternate\ntitle="Atom feed"\n).
		qq(href="$atom"\ntype="application/atom+xml"/>) .
	        $ctx->{www}->style($upfx) .
		'</head><body>'. $top . (delete($ctx->{-html_tip}) // '');
}

sub coderepos ($) {
	my ($ctx) = @_;
	my $cr = $ctx->{ibx}->{coderepo} // return ();
	my $cfg = $ctx->{www}->{pi_cfg};
	my $upfx = ($ctx->{-upfx} // ''). '../';
	my @ret;
	for my $cr_name (@$cr) {
		$ret[0] //= <<EOF;
<a id=code>Code repositories for project(s) associated with this inbox:
EOF
		my $urls = $cfg->get_all("coderepo.$cr_name.cgiturl");
		if ($urls) {
			for (@$urls) {
				# relative or absolute URL?, prefix relative
				# "foo.git" with appropriate number of "../"
				my $u = m!\A(?:[a-z\+]+:)?//! ? $_ : $upfx.$_;
				$u = ascii_html(prurl($ctx->{env}, $u));
				$ret[0] .= qq(\n\t<a\nhref="$u">$u</a>);
			}
		} else {
			$ret[0] .= qq[\n\t$cr_name.git (no URL configured)];
		}
	}
	@ret; # may be empty, this sub is called as an arg for join()
}

sub _html_end {
	my ($ctx) = @_;
	my $upfx = $ctx->{-upfx} || '';
	my $m = "${upfx}_/text/mirror/";
	my $x;
	if ($ctx->{ibx}->can('cloneurl')) {
		$x = <<EOF;
This is a public inbox, see <a
href="$m">mirroring instructions</a>
for how to clone and mirror all data and code used for this inbox
EOF
		my $has_nntp = @{$ctx->{ibx}->nntp_url($ctx)};
		my $has_imap = @{$ctx->{ibx}->imap_url($ctx)};
		if ($has_nntp || $has_imap) {
			substr($x, -1, 1) = ";\n"; # s/\n/;\n
			if ($has_nntp && $has_imap) {
				$x .= <<EOM;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).
EOM
			} elsif ($has_nntp) {
				$x .= <<EOM;
as well as URLs for NNTP newsgroup(s).
EOM
			} else {
				$x .= <<EOM;
as well as URLs for IMAP folder(s).
EOM
			}
		}
	} else {
		$x = <<EOF;
This is an external index of several public inboxes,
see <a href="$m">mirroring instructions</a> on how to clone and mirror
all data and code used by this external index.
EOF
	}
	chomp $x;
	'<hr><pre>'.join("\n\n", coderepos($ctx), $x).'</pre></body></html>'
}

# callback for HTTP.pm (and any other PSGI servers)
sub getline {
	my ($ctx) = @_;
	my $cb = $ctx->{cb} or return;
	while (defined(my $x = $cb->($ctx))) { # x = smsg or scalar non-ref
		if (ref($x)) { # smsg
			my $eml = $ctx->{ibx}->smsg_eml($x) or next;
			$ctx->{smsg} = $x;
			return $ctx->translate($cb->($ctx, $eml));
		} else { # scalar
			return $ctx->translate($x);
		}
	}
	delete $ctx->{cb};
	$ctx->zflush(_html_end($ctx));
}

sub html_oneshot ($$;$) {
	my ($ctx, $code, $sref) = @_;
	my $res_hdr = [ 'Content-Type' => 'text/html; charset=UTF-8',
		'Content-Length' => undef ];
	bless $ctx, __PACKAGE__;
	$ctx->{gz} = PublicInbox::GzipFilter::gz_or_noop($res_hdr, $ctx->{env});
	$ctx->{base_url} //= do {
		$ctx->zmore(html_top($ctx));
		base_url($ctx);
	};
	$ctx->zmore($$sref) if $sref;
	my $bdy = $ctx->zflush(_html_end($ctx));
	$res_hdr->[3] = length($bdy);
	[ $code, $res_hdr, [ $bdy ] ]
}

sub async_next ($) {
	my ($http) = @_; # PublicInbox::HTTP
	my $ctx = $http->{forward} or return;
	eval {
		if (my $smsg = $ctx->{smsg} = $ctx->{cb}->($ctx)) {
			$ctx->smsg_blob($smsg);
		} else {
			$ctx->write(_html_end($ctx));
			$ctx->close; # GzipFilter->close
		}
	};
	warn "E: $@" if $@;
}

sub aresponse {
	my ($ctx, $code, $cb) = @_;
	my $res_hdr = [ 'Content-Type' => 'text/html; charset=UTF-8' ];
	init($ctx, $cb);
	$ctx->psgi_response($code, $res_hdr);
}

1;
debug log:

solving 6d7c447f ...
found 6d7c447f in https://80x24.org/public-inbox.git

Code repositories for project(s) associated with this inbox:

	https://80x24.org/public-inbox.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).