-# Copyright (C) 2013-2015 all contributors <meta@public-inbox.org>
-# License: AGPLv3 or later (https://www.gnu.org/licenses/agpl-3.0.txt)
+# Copyright (C) 2013-2020 all contributors <meta@public-inbox.org>
+# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
#
# Used for generating Atom feeds for web-accessible mailing list archives.
package PublicInbox::Feed;
use strict;
use warnings;
-use Email::Address;
-use Email::MIME;
-use Date::Parse qw(strptime);
-use PublicInbox::Hval qw/ascii_html/;
-use PublicInbox::Git;
use PublicInbox::View;
-use PublicInbox::MID qw/mid_clean mid2path/;
-use POSIX qw/strftime/;
-use constant {
- DATEFMT => '%Y-%m-%dT%H:%M:%SZ', # Atom standard
- MAX_PER_PAGE => 25, # this needs to be tunable
-};
+use PublicInbox::WwwAtomStream;
+use PublicInbox::Smsg; # this loads w/o Search::Xapian
+
+sub generate_i {
+ my ($ctx) = @_;
+ shift @{$ctx->{msgs}};
+}
# main function
sub generate {
my ($ctx) = @_;
- sub { emit_atom($_[0], $ctx) };
+ my $msgs = $ctx->{msgs} = recent_msgs($ctx);
+ return _no_thread() unless @$msgs;
+ PublicInbox::WwwAtomStream->response($ctx, 200, \&generate_i);
}
sub generate_thread_atom {
my ($ctx) = @_;
- sub { emit_atom_thread($_[0], $ctx) };
+ my $msgs = $ctx->{msgs} = $ctx->{-inbox}->over->get_thread($ctx->{mid});
+ return _no_thread() unless @$msgs;
+ PublicInbox::WwwAtomStream->response($ctx, 200, \&generate_i);
}
sub generate_html_index {
my ($ctx) = @_;
- sub { emit_html_index($_[0], $ctx) };
-}
-
-# private subs
-
-sub title_tag {
- my ($title) = @_;
- $title =~ tr/\t\n / /s; # squeeze spaces
- # try to avoid the type attribute in title:
- $title = ascii_html($title);
- my $type = index($title, '&') >= 0 ? "\ntype=\"html\"" : '';
- "<title$type>$title</title>";
-}
-
-sub atom_header {
- my ($feed_opts, $title) = @_;
-
- $title = title_tag($feed_opts->{description}) unless (defined $title);
-
- qq(<?xml version="1.0" encoding="us-ascii"?>\n) .
- qq{<feed\nxmlns="http://www.w3.org/2005/Atom">} .
- qq{$title} .
- qq(<link\nrel="alternate"\ntype="text/html") .
- qq(\nhref="$feed_opts->{url}"/>) .
- qq(<link\nrel="self"\nhref="$feed_opts->{atomurl}"/>) .
- qq(<id>mailto:$feed_opts->{id_addr}</id>);
-}
-
-sub emit_atom {
- my ($cb, $ctx) = @_;
- my $feed_opts = get_feedopts($ctx);
- my $fh = $cb->([ 200, ['Content-Type' => 'application/atom+xml']]);
- my $max = $ctx->{max} || MAX_PER_PAGE;
- my $x = atom_header($feed_opts);
- my $git = $ctx->{git} ||= PublicInbox::Git->new($ctx->{git_dir});
- each_recent_blob($ctx, sub {
- my ($path, undef, $ts) = @_;
- if (defined $x) {
- $fh->write($x . feed_updated(undef, $ts));
- $x = undef;
- }
- add_to_feed($feed_opts, $fh, $path, $git);
- });
- end_feed($fh);
-}
-
-sub _no_thread {
- my ($cb) = @_;
- my $fh = $cb->([404, ['Content-Type' => 'text/plain']]);
- $fh->write("No feed found for thread\n");
- $fh->close;
-}
+ # if the 'r' query parameter is given, it is a legacy permalink
+ # which we must continue supporting:
+ my $qp = $ctx->{qp};
+ my $ibx = $ctx->{-inbox};
+ if ($qp && !$qp->{r} && $ibx->over) {
+ return PublicInbox::View::index_topics($ctx);
+ }
-sub end_feed {
- my ($fh) = @_;
- Email::Address->purge_cache;
- $fh->write('</feed>');
- $fh->close;
+ my $env = $ctx->{env};
+ my $url = $ibx->base_url($env) . 'new.html';
+ my $qs = $env->{QUERY_STRING};
+ $url .= "?$qs" if $qs ne '';
+ [302, [ 'Location', $url, 'Content-Type', 'text/plain'],
+ [ "Redirecting to $url\n" ] ];
}
-sub emit_atom_thread {
- my ($cb, $ctx) = @_;
- my $res = $ctx->{srch}->get_thread($ctx->{mid});
- return _no_thread($cb) unless $res->{total};
- my $feed_opts = get_feedopts($ctx);
- my $fh = $cb->([200, ['Content-Type' => 'application/atom+xml']]);
+sub new_html_i {
+ my ($ctx, $eml) = @_;
+ $ctx->zmore($ctx->html_top) if exists $ctx->{-html_tip};
- my $html_url = $feed_opts->{atomurl} = $ctx->{self_url};
- $html_url =~ s!/t\.atom\z!/!;
- $feed_opts->{url} = $html_url;
- $feed_opts->{emit_header} = 1;
-
- my $git = $ctx->{git} ||= PublicInbox::Git->new($ctx->{git_dir});
- foreach my $msg (@{$res->{msgs}}) {
- add_to_feed($feed_opts, $fh, mid2path($msg->mid), $git);
- }
- end_feed($fh);
+ $eml and return PublicInbox::View::eml_entry($ctx, $eml);
+ my $smsg = shift @{$ctx->{msgs}} or
+ $ctx->zmore(PublicInbox::View::pagination_footer(
+ $ctx, './new.html'));
+ $smsg;
}
-sub emit_html_index {
- my ($res, $ctx) = @_;
- my $feed_opts = get_feedopts($ctx);
- my $fh = $res->([200,['Content-Type'=>'text/html; charset=UTF-8']]);
-
- my $max = $ctx->{max} || MAX_PER_PAGE;
-
- my $title = ascii_html($feed_opts->{description} || '');
- my ($footer, $param, $last);
- my $state = { ctx => $ctx, seen => {}, anchor_idx => 0, fh => $fh };
- my $srch = $ctx->{srch};
-
- my $top = "<b>$title</b> (<a\nhref=\"new.atom\">Atom feed</a>)";
-
- if ($srch) {
- $top = qq{<form\naction=""><pre>$top} .
- qq{ <input\nname=q\ntype=text />} .
- qq{<input\ntype=submit\nvalue=search />} .
- q{</pre></form><pre>}
- } else {
- $top = '<pre>' . $top . "\n";
- }
-
- $fh->write("<html><head><title>$title</title>" .
- "<link\nrel=alternate\ntitle=\"Atom feed\"\n".
- "href=\"new.atom\"\ntype=\"application/atom+xml\"/>" .
- PublicInbox::Hval::STYLE .
- "</head><body>$top");
-
- # if the 'r' query parameter is given, it is a legacy permalink
- # which we must continue supporting:
- my $cgi = $ctx->{cgi};
- if ($cgi && !$cgi->param('r') && $srch) {
- $state->{srch} = $srch;
- $last = PublicInbox::View::emit_index_topics($state);
- $param = 'o';
- } else {
- $last = emit_index_nosrch($ctx, $state);
- $param = 'r';
- }
- $footer = nav_footer($cgi, $last, $feed_opts, $state, $param);
- if ($footer) {
- my $list_footer = $ctx->{footer};
- $footer .= "\n\n" . $list_footer if $list_footer;
- $footer = "<hr /><pre>$footer</pre>";
+sub new_html {
+ my ($ctx) = @_;
+ my $msgs = $ctx->{msgs} = recent_msgs($ctx);
+ if (!@$msgs) {
+ return [404, ['Content-Type', 'text/plain'],
+ ["No messages, yet\n"] ];
}
- $fh->write("$footer</body></html>");
- $fh->close;
+ $ctx->{-html_tip} = '<pre>';
+ $ctx->{-upfx} = '';
+ $ctx->{-hr} = 1;
+ PublicInbox::WwwStream::aresponse($ctx, 200, \&new_html_i);
}
-sub emit_index_nosrch {
- my ($ctx, $state) = @_;
- my $git = $ctx->{git} ||= PublicInbox::Git->new($ctx->{git_dir});
- my (undef, $last) = each_recent_blob($ctx, sub {
- my ($path, $commit, $ts, $u, $subj) = @_;
- $state->{first} ||= $commit;
+# private subs
- my $mime = do_cat_mail($git, $path) or return 0;
- PublicInbox::View::index_entry($mime, 0, $state);
- 1;
- });
- Email::Address->purge_cache;
- $last;
+sub _no_thread () {
+ [404, ['Content-Type', 'text/plain'], ["No feed found for thread\n"]];
}
-sub nav_footer {
- my ($cgi, $last, $feed_opts, $state, $param) = @_;
- $cgi or return '';
- my $old_r = $cgi->param($param);
- my $head = ' ';
- my $next = ' ';
- my $first = $state->{first};
- my $anchor = $state->{anchor_idx};
-
- if ($last) {
- $next = qq!<a\nhref="?$param=$last"\nrel=next>next</a>!;
- }
- if ($old_r) {
- $head = $cgi->path_info;
- $head = qq!<a\nhref="$head">head</a>!;
- }
- my $atom = "<a\nhref=\"$feed_opts->{atomurl}\">Atom feed</a>";
- "<a\nname=\"s$anchor\">page:</a> $next $head $atom";
-}
+sub recent_msgs {
+ my ($ctx) = @_;
+ my $ibx = $ctx->{-inbox};
+ my $max = $ibx->{feedmax};
+ return PublicInbox::View::paginate_recent($ctx, $max) if $ibx->over;
-sub each_recent_blob {
- my ($ctx, $cb) = @_;
- my $max = $ctx->{max} || MAX_PER_PAGE;
+ # only for rare v1 inboxes which aren't indexed at all
+ my $qp = $ctx->{qp};
my $hex = '[a-f0-9]';
- my $addmsg = qr!^:000000 100644 \S+ \S+ A\t(${hex}{2}/${hex}{38})$!;
- my $delmsg = qr!^:100644 000000 \S+ \S+ D\t(${hex}{2}/${hex}{38})$!;
- my $refhex = qr/(?:HEAD|${hex}{4,40})(?:~\d+)?/;
- my $cgi = $ctx->{cgi};
+ my $addmsg = qr!^:000000 100644 \S+ (\S+) A\t${hex}{2}/${hex}{38}$!;
+ my $delmsg = qr!^:100644 000000 (\S+) \S+ D\t(${hex}{2}/${hex}{38})$!;
+ my $refhex = qr/(?:HEAD|${hex}{4,40})(?:~[0-9]+)?/;
# revision ranges may be specified
my $range = 'HEAD';
- my $r = $cgi->param('r') if $cgi;
+ my $r = $qp->{r} if $qp;
if ($r && ($r =~ /\A(?:$refhex\.\.)?$refhex\z/o)) {
$range = $r;
}
# get recent messages
# we could use git log -z, but, we already know ssoma will not
# leave us with filenames with spaces in them..
- my $git = $ctx->{git} ||= PublicInbox::Git->new($ctx->{git_dir});
- my $log = $git->popen(qw/log --no-notes --no-color --raw -r
- --abbrev=16 --abbrev-commit/,
- "--format=%h%x00%ct%x00%an%x00%s%x00",
- $range);
+ my $log = $ibx->git->popen(qw/log
+ --no-notes --no-color --raw -r
+ --no-abbrev --abbrev-commit/,
+ "--format=%H", $range);
my %deleted; # only an optimization at this point
my $last;
- my $nr = 0;
- my ($cur_commit, $first_commit, $last_commit);
- my ($ts, $subj, $u);
+ my $last_commit;
+ local $/ = "\n";
+ my @oids;
while (defined(my $line = <$log>)) {
if ($line =~ /$addmsg/o) {
my $add = $1;
next if $deleted{$add}; # optimization-only
- $nr += $cb->($add, $cur_commit, $ts, $u, $subj);
- if ($nr >= $max) {
+ push @oids, $add;
+ if (scalar(@oids) >= $max) {
$last = 1;
last;
}
} elsif ($line =~ /$delmsg/o) {
$deleted{$1} = 1;
- } elsif ($line =~ /^${hex}{7,40}/o) {
- ($cur_commit, $ts, $u, $subj) = split("\0", $line);
- unless (defined $first_commit) {
- $first_commit = $cur_commit;
- }
}
}
if ($last) {
+ local $/ = "\n";
while (my $line = <$log>) {
- if ($line =~ /^(${hex}{7,40})/o) {
+ if ($line =~ /^(${hex}{7,40})/) {
$last_commit = $1;
last;
}
}
}
- # for pagination
- ($first_commit, $last_commit);
-}
-
-# private functions below
-sub get_feedopts {
- my ($ctx) = @_;
- my $pi_config = $ctx->{pi_config};
- my $inbox = $ctx->{inbox};
- my $obj = $ctx->{-inbox};
- my $cgi = $ctx->{cgi};
- my %rv = ( description => $obj ? $obj->description : 'FIXME' );
-
- if ($obj) {
- $rv{address} = $obj->{address};
- $rv{id_addr} = $obj->{-primary_address};
- } elsif ($pi_config && defined $inbox && $inbox ne '') {
- # TODO: remove
- my $addr = $pi_config->get($inbox, 'address') || "";
- $rv{address} = $addr;
- $addr = $addr->[0] if ref($addr);
- $rv{id_addr} = $addr;
- }
- $rv{id_addr} ||= 'public-inbox@example.com';
-
- my $url_base;
- if ($obj) {
- $url_base = $obj->base_url($cgi); # CGI may be undef
- if (my $mid = $ctx->{mid}) { # per-thread feed:
- $rv{atomurl} = "$url_base$mid/t.atom";
- } else {
- $rv{atomurl} = $url_base."new.atom";
- }
- } else {
- $url_base = 'http://example.com/';
- $rv{atomurl} = $url_base.'new.atom';
- }
- $rv{url} ||= $url_base;
- $rv{midurl} = $url_base;
-
- \%rv;
-}
-
-sub feed_updated {
- my ($date, $ts) = @_;
- my @t = eval { strptime($date) } if defined $date;
- @t = gmtime($ts || time) unless scalar @t;
-
- '<updated>' . strftime(DATEFMT, @t) . '</updated>';
-}
-
-# returns 0 (skipped) or 1 (added)
-sub add_to_feed {
- my ($feed_opts, $fh, $add, $git) = @_;
-
- my $mime = do_cat_mail($git, $add) or return 0;
- my $url = $feed_opts->{url};
- my $midurl = $feed_opts->{midurl};
-
- my $header_obj = $mime->header_obj;
- my $mid = $header_obj->header_raw('Message-ID');
- defined $mid or return 0;
- $mid = PublicInbox::Hval->new_msgid($mid);
- my $href = $mid->as_href;
-
- my $content = qq(<pre\nstyle="white-space:pre-wrap">) .
- PublicInbox::View::multipart_text_as_html($mime) .
- '</pre>';
- my $date = $header_obj->header('Date');
- my $updated = feed_updated($date);
-
- my $title = $header_obj->header('Subject');
- defined $title or return 0;
- $title = title_tag($title);
-
- my $from = $header_obj->header('From') or return 0;
- my @from = Email::Address->parse($from) or return 0;
- my $name = ascii_html($from[0]->name);
- my $email = $from[0]->address;
- $email = ascii_html($email);
-
- if (delete $feed_opts->{emit_header}) {
- $fh->write(atom_header($feed_opts, $title) . $updated);
- }
- $fh->write("<entry><author><name>$name</name><email>$email</email>" .
- "</author>$title$updated" .
- qq{<content\ntype="xhtml">} .
- qq{<div\nxmlns="http://www.w3.org/1999/xhtml">});
- $fh->write($content);
-
- $add =~ tr!/!!d;
- my $h = '[a-f0-9]';
- my (@uuid5) = ($add =~ m!\A($h{8})($h{4})($h{4})($h{4})($h{12})!o);
- my $id = 'urn:uuid:' . join('-', @uuid5);
- $fh->write(qq!</div></content><link\nhref="$midurl$href/"/>!.
- "<id>$id</id></entry>");
- 1;
-}
+ $last_commit and
+ $ctx->{next_page} = qq[<a\nhref="?r=$last_commit"\nrel=next>] .
+ 'next (older)</a>';
-sub do_cat_mail {
- my ($git, $path) = @_;
- my $mime = eval {
- my $str = $git->cat_file("HEAD:$path");
- Email::MIME->new($str);
- };
- $@ ? undef : $mime;
+ [ map { bless {blob => $_ }, 'PublicInbox::Smsg' } @oids ];
}
1;