remove XML::Atom::SimpleFeed dependency

[public-inbox.git] / lib / PublicInbox / Feed.pm

diff --git a/lib/PublicInbox/Feed.pm b/lib/PublicInbox/Feed.pm
index 5d122ac6ffa67bd058f323bec5d4d925b6a88e5b..8dd6d036175a433ebf168e56a264bfb0813be877 100644 (file)
--- a/lib/PublicInbox/Feed.pm
+++ b/lib/PublicInbox/Feed.pm
@@ -1,4 +1,4 @@
-# Copyright (C) 2013, Eric Wong <normalperson@yhbt.net> and all contributors
+# Copyright (C) 2013-2015, all contributors <meta@public-inbox.org>
 # License: AGPLv3 or later (https://www.gnu.org/licenses/agpl-3.0.txt)
 package PublicInbox::Feed;
 use strict;
@@ -20,43 +20,50 @@ my $enc_utf8 = find_encoding('UTF-8');
 
 # main function
 sub generate {
-       my ($class, $ctx) = @_;
-       require XML::Atom::SimpleFeed;
+       my ($ctx) = @_;
+       sub { emit_atom($_[0], $ctx) };
+}
+
+sub generate_html_index {
+       my ($ctx) = @_;
+       sub { emit_html_index($_[0], $ctx) };
+}
+
+# private subs
+
+sub emit_atom {
+       my ($cb, $ctx) = @_;
        require POSIX;
+       my $fh = $cb->([ 200, ['Content-Type' => 'application/xml']]);
        my $max = $ctx->{max} || MAX_PER_PAGE;
-
        my $feed_opts = get_feedopts($ctx);
        my $addr = $feed_opts->{address};
        $addr = $addr->[0] if ref($addr);
-       my $feed = XML::Atom::SimpleFeed->new(
-               title => $feed_opts->{description} || "unnamed feed",
-               link => $feed_opts->{url} || "http://example.com/",
-               link => {
-                       rel => 'self',
-                       href => $feed_opts->{atomurl} ||
-                               "http://example.com/atom.xml",
-               },
-               id => 'mailto:' . ($addr || 'public-inbox@example.com'),
-               updated => POSIX::strftime(DATEFMT, gmtime),
-       );
-       $feed->no_generator;
+       $addr ||= 'public-inbox@example.com';
+       my $title = $feed_opts->{description} || "unnamed feed";
+       $title = PublicInbox::Hval->new_oneline($title)->as_html;
+       my $type = index($title, '&') >= 0 ? "\ntype=\"html\"" : '';
+       my $url = $feed_opts->{url} || "http://example.com/";
+       my $atomurl = $feed_opts->{atomurl};
+       $fh->write(qq(<?xml version="1.0" encoding="us-ascii"?>\n) .
+               qq{<feed\nxmlns="http://www.w3.org/2005/Atom">} .
+               qq{<title$type>$title</title>} .
+               qq{<link\nhref="$url"/>} .
+               qq{<link\nrel="self"\nhref="$atomurl"/>} .
+               qq{<id>mailto:$addr</id>} .
+               '<updated>' . POSIX::strftime(DATEFMT, gmtime) . '</updated>');
 
        my $git = PublicInbox::GitCatFile->new($ctx->{git_dir});
        each_recent_blob($ctx, sub {
                my ($add, undef) = @_;
-               add_to_feed($feed_opts, $feed, $add, $git);
+               add_to_feed($feed_opts, $fh, $add, $git);
        });
        $git = undef; # destroy pipes
        Email::Address->purge_cache;
-       $feed->as_string;
-}
-
-sub generate_html_index {
-       my ($ctx) = @_;
-       sub { emit_html_index($_[0], $ctx) };
+       $fh->write("</feed>");
+       $fh->close;
 }
 
-# private subs
 
 sub emit_html_index {
        my ($cb, $ctx) = @_;
@@ -253,10 +260,9 @@ sub feed_date {
 
 # returns 0 (skipped) or 1 (added)
 sub add_to_feed {
-       my ($feed_opts, $feed, $add, $git) = @_;
+       my ($feed_opts, $fh, $add, $git) = @_;
 
        my $mime = do_cat_mail($git, $add) or return 0;
-       my $midurl = $feed_opts->{midurl} || 'http://example.com/m/';
        my $fullurl = $feed_opts->{fullurl} || 'http://example.com/f/';
 
        my $header_obj = $mime->header_obj;
@@ -268,30 +274,34 @@ sub add_to_feed {
        defined($content) or return 0;
        $mime = undef;
 
-       my $subject = mime_header($header_obj, 'Subject') or return 0;
+       my $title = mime_header($header_obj, 'Subject') or return 0;
+       $title = PublicInbox::Hval->new_oneline($title)->as_html;
+       my $type = index($title, '&') >= 0 ? "\ntype=\"html\"" : '';
 
        my $from = mime_header($header_obj, 'From') or return 0;
        my @from = Email::Address->parse($from);
-       my $name = $from[0]->name;
-       defined $name or $name = "";
+       my $name = PublicInbox::Hval->new_oneline($from[0]->name)->as_html;
        my $email = $from[0]->address;
-       defined $email or $email = "";
+       $email = PublicInbox::Hval->new_oneline($email)->as_html;
 
        my $date = $header_obj->header('Date');
        $date = PublicInbox::Hval->new_oneline($date);
        $date = feed_date($date->raw) or return 0;
+
+       $fh->write("<entry><author><name>$name</name><email>$email</email>" .
+                  "</author><title$type>$title</title>" .
+                  "<updated>$date</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);
-
-       $feed->add_entry(
-               author => { name => $name, email => $email },
-               title => $subject,
-               updated => $date,
-               content => { type => 'xhtml', content => $content },
-               link => $midurl . $href,
-               id => 'urn:uuid:' . join('-', @uuid5),
-       );
+       my $id = 'urn:uuid:' . join('-', @uuid5);
+       my $midurl = $feed_opts->{midurl} || 'http://example.com/m/';
+       $fh->write(qq{</div></content><link\nhref="$midurl$href"/>}.
+                  "<id>$id</id></entry>");
        1;
 }