package PublicInbox::View;
use strict;
use warnings;
-use URI::Escape qw/uri_escape/;
-use CGI qw/escapeHTML/;
-use Encode qw/decode encode/;
+use PublicInbox::Hval;
+use URI::Escape qw/uri_escape_utf8/;
+use Encode qw/find_encoding/;
use Encode::MIME::Header;
+use Email::MIME::ContentType qw/parse_content_type/;
+
+# TODO: make these constants tunable
+use constant MAX_INLINE_QUOTED => 5;
+use constant MAX_TRUNC_LEN => 72;
+
+*ascii_html = *PublicInbox::Hval::ascii_html;
+
+my $enc_utf8 = find_encoding('UTF-8');
+my $enc_mime = find_encoding('MIME-Header');
# public functions:
-sub as_html {
+sub msg_html {
my ($class, $mime, $full_pfx) = @_;
- headers_to_html_header($mime) .
+ headers_to_html_header($mime, $full_pfx) .
multipart_text_as_html($mime, $full_pfx) .
- '</pre>';
+ '</pre><hr /><pre>' .
+ html_footer($mime) .
+ '</pre></body></html>';
}
-sub as_feed_entry {
+sub feed_entry {
my ($class, $mime, $full_pfx) = @_;
- "<pre>" . multipart_text_as_html($mime, $full_pfx) . "</pre>";
+ '<pre>' . multipart_text_as_html($mime, $full_pfx) . '</pre>';
}
# only private functions below.
+sub enc_for {
+ my ($ct) = @_;
+ defined $ct or return $enc_utf8;
+ my $ct_parsed = parse_content_type($ct);
+ if ($ct_parsed) {
+ if (my $charset = $ct_parsed->{attributes}->{charset}) {
+ my $enc = find_encoding($charset);
+ return $enc if $enc;
+ }
+ }
+ $enc_utf8;
+}
+
sub multipart_text_as_html {
my ($mime, $full_pfx) = @_;
my $rv = "";
my $part_nr = 0;
+ my $enc_msg = enc_for($mime->header("Content-Type"));
# scan through all parts, looking for displayable text
$mime->walk_parts(sub {
my ($part) = @_;
return if $part->subparts; # walk_parts already recurses
-
- my $fn = $part->filename;
+ my $enc = enc_for($part->content_type) || $enc_msg || $enc_utf8;
if ($part_nr > 0) {
+ my $fn = $part->filename;
defined($fn) or $fn = "part #" . ($part_nr + 1);
- $rv .= add_filename_line($fn);
+ $rv .= add_filename_line($enc->decode($fn));
}
if (defined $full_pfx) {
- $rv .= add_text_body_short($part, $part_nr,
+ $rv .= add_text_body_short($enc, $part, $part_nr,
$full_pfx);
} else {
- $rv .= add_text_body_full($part, $part_nr);
+ $rv .= add_text_body_full($enc, $part, $part_nr);
}
$rv .= "\n" unless $rv =~ /\n\z/s;
++$part_nr;
$len -= length($fn);
$pad x= ($len/2) if ($len > 0);
- "$pad " . escapeHTML($fn) . " $pad\n";
+ "$pad " . ascii_html($fn) . " $pad\n";
}
sub add_text_body_short {
- my ($part, $part_nr, $full_pfx) = @_;
+ my ($enc, $part, $part_nr, $full_pfx) = @_;
my $n = 0;
- my $s = escapeHTML($part->body);
- $s =~ s!^((?:(?:>[^\n]+)\n)+)!
+ my $s = ascii_html($enc->decode($part->body));
+ # TODO: fold the "so-and-so wrote:" attribute line here, too:
+ $s =~ s!^((?:(?:>[^\n]*)\n)+)!
my $cur = $1;
my @lines = split(/\n/, $cur);
- if (@lines > 1) {
+ if (@lines > MAX_INLINE_QUOTED) {
# show a short snippet of quoted text
$cur = join(' ', @lines);
- $cur =~ s/> ?//g;
+ $cur =~ s/^>\s*//;
my @sum = split(/\s+/, $cur);
$cur = '';
do {
- $cur .= shift(@sum) . ' ';
- } while (@sum && length($cur) < 68);
- $cur=~ s/ \z/ .../;
- "> <<a href=${full_pfx}#q${part_nr}_" . $n++ .
- ">$cur<\/a>>";
+ my $tmp = shift(@sum);
+ my $len = length($tmp) + length($cur);
+ if ($len > MAX_TRUNC_LEN) {
+ @sum = ();
+ } else {
+ $cur .= $tmp . ' ';
+ }
+ } while (@sum && length($cur) < MAX_TRUNC_LEN);
+ $cur =~ s/ \z/ .../;
+ "> <<a href=\"${full_pfx}#q${part_nr}_" . $n++ .
+ "\">$cur<\/a>>\n";
} else {
$cur;
}
}
sub add_text_body_full {
- my ($part, $part_nr) = @_;
+ my ($enc, $part, $part_nr) = @_;
my $n = 0;
- my $s = escapeHTML($part->body);
- $s =~ s!^((?:(?:>[^\n]+)\n)+)!
+ my $s = ascii_html($enc->decode($part->body));
+ $s =~ s!^((?:(?:>[^\n]*)\n)+)!
my $cur = $1;
my @lines = split(/\n/, $cur);
- if (@lines > 1) {
+ if (@lines > MAX_INLINE_QUOTED) {
"<a name=q${part_nr}_" . $n++ . ">$cur</a>";
} else {
$cur;
$s;
}
-sub trim_message_id {
- my ($mid) = @_;
- $mid =~ tr/<>//d;
- my $html = escapeHTML($mid);
- my $href = escapeHTML(uri_escape($mid));
-
- ($html, $href);
-}
-
sub headers_to_html_header {
- my ($simple) = @_;
+ my ($mime, $full_pfx) = @_;
my $rv = "";
my @title;
foreach my $h (qw(From To Cc Subject Date)) {
- my $v = $simple->header($h);
- defined $v or next;
- $v = decode("MIME-Header", $v);
- $v = encode("utf8", $v);
- $v = escapeHTML($v);
- $v =~ tr/\n/ /;
- $rv .= "$h: $v\n";
-
- if ($h eq "From" || $h eq "Subject") {
- push @title, $v;
+ my $v = $mime->header($h);
+ defined($v) && length($v) or next;
+ $v = PublicInbox::Hval->new_oneline($v);
+ $rv .= "$h: " . $v->as_html . "\n";
+
+ if ($h eq 'From') {
+ my @from = Email::Address->parse($v->raw);
+ $v = $from[0]->name;
+ unless (defined($v) && length($v)) {
+ $v = '<' . $from[0]->address . '>';
+ }
+ $title[1] = ascii_html($v);
+ } elsif ($h eq 'Subject') {
+ $title[0] = $v->as_html;
}
}
- my $mid = $simple->header('Message-ID');
+ my $header_obj = $mime->header_obj;
+ my $mid = $header_obj->header_raw('Message-ID');
if (defined $mid) {
- my ($html, $href) = trim_message_id($mid);
- $rv .= "Message-ID: <a href=$href.html>$html</a> ";
- $rv .= "(<a href=$href.txt>original</a>)\n";
+ $mid = PublicInbox::Hval->new_msgid($mid);
+ $rv .= 'Message-ID: <' . $mid->as_html . '> ';
+ my $href = $mid->as_href;
+ $href = "../m/$href" unless $full_pfx;
+ $rv .= "(<a href=\"$href.txt\">original</a>)\n";
}
- my $irp = $simple->header('In-Reply-To');
+ my $irp = $header_obj->header_raw('In-Reply-To');
if (defined $irp) {
- my ($html, $href) = trim_message_id($irp);
- $rv .= "In-Reply-To: <a href=$href.html>$html</a>\n";
+ my $v = PublicInbox::Hval->new_msgid(my $tmp = $irp);
+ my $html = $v->as_html;
+ my $href = $v->as_href;
+ $rv .= "In-Reply-To: <";
+ $rv .= "<a href=\"$href.html\">$html</a>>\n";
}
+
+ my $refs = $header_obj->header_raw('References');
+ if ($refs) {
+ $refs =~ s/\s*\Q$irp\E\s*// if (defined $irp);
+ my @refs = ($refs =~ /<([^>]+)>/g);
+ if (@refs) {
+ $rv .= 'References: '. linkify_refs(@refs) . "\n";
+ }
+ }
+
$rv .= "\n";
("<html><head><title>". join(' - ', @title) .
'</title></head><body><pre style="white-space:pre-wrap">' . $rv);
}
+sub html_footer {
+ my ($mime) = @_;
+ my %cc; # everyone else
+ my $to; # this is the From address
+
+ foreach my $h (qw(From To Cc)) {
+ my $v = $mime->header($h);
+ defined($v) && length($v) or next;
+ my @addrs = Email::Address->parse($v);
+ foreach my $recip (@addrs) {
+ my $address = $recip->address;
+ my $dst = lc($address);
+ $cc{$dst} ||= $address;
+ $to ||= $dst;
+ }
+ }
+ Email::Address->purge_cache;
+
+ my $subj = $mime->header('Subject') || '';
+ $subj = "Re: $subj" unless $subj =~ /\bRe:/;
+ my $irp = uri_escape_utf8(
+ $mime->header_obj->header_raw('Message-ID') || '');
+ delete $cc{$to};
+ $to = uri_escape_utf8($to);
+ $subj = uri_escape_utf8($subj);
+
+ my $cc = uri_escape_utf8(join(',', values %cc));
+ my $href = "mailto:$to?In-Reply-To=$irp&Cc=${cc}&Subject=$subj";
+
+ '<a href="' . ascii_html($href) . '">reply</a>';
+}
+
+sub linkify_refs {
+ join(' ', map {
+ my $v = PublicInbox::Hval->new_msgid($_);
+ my $html = $v->as_html;
+ my $href = $v->as_href;
+ "<<a href=\"$href.html\">$html</a>>";
+ } @_);
+}
+
1;