package PublicInbox::View;
use strict;
use warnings;
-use URI::Escape qw/uri_escape/;
-use CGI qw/escapeHTML/;
+use URI::Escape qw/uri_escape_utf8/;
use Encode qw/find_encoding/;
use Encode::MIME::Header;
use Email::MIME::ContentType qw/parse_content_type/;
-use constant MAX_INLINE_QUOTED => 5;
+use PublicInbox::Hval;
+use PublicInbox::MID qw/mid_clean mid_compressed/;
+require POSIX;
+
+# TODO: make these constants tunable
+use constant MAX_INLINE_QUOTED => 12; # half an 80x24 terminal
use constant MAX_TRUNC_LEN => 72;
+use constant PRE_WRAP => "<pre\nstyle=\"white-space:pre-wrap\">";
-my $enc_utf8 = find_encoding('utf8');
-my $enc_ascii = find_encoding('us-ascii');
-my $enc_mime = find_encoding('MIME-Header');
+*ascii_html = *PublicInbox::Hval::ascii_html;
-# public functions:
-sub as_html {
- my ($class, $mime, $full_pfx) = @_;
+my $enc_utf8 = find_encoding('UTF-8');
- headers_to_html_header($mime) .
+# public functions:
+sub msg_html {
+ my ($class, $mime, $full_pfx, $footer) = @_;
+ if (defined $footer) {
+ $footer = "\n" . $footer;
+ } else {
+ $footer = '';
+ }
+ headers_to_html_header($mime, $full_pfx) .
multipart_text_as_html($mime, $full_pfx) .
+ '</pre><hr />' . PRE_WRAP .
+ html_footer($mime, 1) . $footer .
'</pre></body></html>';
}
-sub as_feed_entry {
+sub feed_entry {
my ($class, $mime, $full_pfx) = @_;
- "<pre>" . multipart_text_as_html($mime, $full_pfx) . "</pre>";
+ PRE_WRAP . multipart_text_as_html($mime, $full_pfx) . '</pre>';
}
+# this is already inside a <pre>
+sub index_entry {
+ my ($class, $mime, $level, $state) = @_;
+ my ($now, $seen, $first) = @$state;
+ my $midx = $state->[3]++;
+ my ($prev, $next) = ($midx - 1, $midx + 1);
+ my $rv = '';
+ my $part_nr = 0;
+ my $enc_msg = enc_for($mime->header("Content-Type"));
+ my $subj = $mime->header('Subject');
+ my $header_obj = $mime->header_obj;
+
+ my $mid_raw = $header_obj->header_raw('Message-ID');
+ my $id = anchor_for($mid_raw);
+ $seen->{$id} = "#$id"; # save the anchor for later
+
+ my $mid = PublicInbox::Hval->new_msgid($mid_raw);
+ my $from = PublicInbox::Hval->new_oneline($mime->header('From'))->raw;
+ my @from = Email::Address->parse($from);
+ $from = $from[0]->name;
+ (defined($from) && length($from)) or $from = $from[0]->address;
+
+ $from = PublicInbox::Hval->new_oneline($from)->as_html;
+ $subj = PublicInbox::Hval->new_oneline($subj)->as_html;
+ my $pfx = (' ' x $level);
+
+ my $ts = $mime->header('X-PI-Date');
+ my $fmt = '%Y-%m-%d %H:%M UTC';
+ $ts = POSIX::strftime($fmt, gmtime($ts));
+
+ $rv .= "$pfx<b\nid=\"$id\">$subj</b>\n$pfx";
+ $rv .= "- by $from @ $ts - ";
+ $rv .= "<a\nid=\"s$midx\"\nhref=\"#s$next\">next</a>";
+ if ($prev >= 0) {
+ $rv .= "/<a\nhref=\"#s$prev\">prev</a>";
+ }
+ $rv .= "\n\n";
+
+ my $irp = $header_obj->header_raw('In-Reply-To');
+ my ($anchor_idx, $anchor);
+ if (defined $irp) {
+ $anchor_idx = anchor_for($irp);
+ $anchor = $seen->{$anchor_idx};
+ }
+ my $href = $mid->as_href;
+ my $mhref = "m/$href.html";
+ my $fhref = "f/$href.html";
+ my $more = 'message';
+ # scan through all parts, looking for displayable text
+ $mime->walk_parts(sub {
+ my ($part) = @_;
+ return if $part->subparts; # walk_parts already recurses
+ my $ct = $part->content_type;
+
+ # account for filter bugs...
+ return if defined $ct && $ct =~ m!\btext/[xh]+tml\b!i;
+
+ my $enc = enc_for($ct, $enc_msg);
+
+ if ($part_nr > 0) {
+ my $fn = $part->filename;
+ defined($fn) or $fn = "part #" . ($part_nr + 1);
+ $rv .= $pfx . add_filename_line($enc->decode($fn));
+ }
+
+ my $s = add_text_body_short($enc, $part, $part_nr, $fhref);
+
+ # drop the remainder of git patches, they're usually better
+ # to review when the full message is viewed
+ $s =~ s!^---+\n.*\z!!ms and $more = 'more...';
+
+ # Drop signatures
+ $s =~ s/^-- \n.*\z//ms and $more = 'more...';
+
+ # kill any leading or trailing whitespace
+ $s =~ s/\A\s+//s;
+ $s =~ s/\s+\z//s;
+
+ if (length $s) {
+ # add prefix:
+ $s =~ s/^/$pfx/sgm;
+
+ $rv .= $s . "\n";
+ }
+ ++$part_nr;
+ });
+
+ $rv .= "\n$pfx<a\nhref=\"$mhref\">$more</a> ";
+ my $txt = "m/$href.txt";
+ $rv .= "<a\nhref=\"$txt\">raw</a> ";
+ $rv .= html_footer($mime, 0);
+
+ if (defined $irp) {
+ unless (defined $anchor) {
+ my $v = PublicInbox::Hval->new_msgid($irp);
+ my $html = $v->as_html;
+ $anchor = 'm/' . $v->as_href . '.html';
+ $seen->{$anchor_idx} = $anchor;
+ }
+ $rv .= " <a\nhref=\"$anchor\">parent</a>";
+ }
+ $rv .= " <a\nhref=\"?r=$first#$id\">threadlink</a>";
+
+ $rv . "\n\n";
+}
# only private functions below.
sub enc_for {
- my ($ct) = @_;
- defined $ct or return $enc_utf8;
+ my ($ct, $default) = @_;
+ $default ||= $enc_utf8;
+ defined $ct or return $default;
my $ct_parsed = parse_content_type($ct);
if ($ct_parsed) {
if (my $charset = $ct_parsed->{attributes}->{charset}) {
return $enc if $enc;
}
}
- $enc_utf8;
+ $default;
}
sub multipart_text_as_html {
$mime->walk_parts(sub {
my ($part) = @_;
return if $part->subparts; # walk_parts already recurses
- my $enc = enc_for($part->content_type) || $enc_msg || $enc_utf8;
+ my $ct = $part->content_type;
+
+ # account for filter bugs...
+ return if defined $ct && $ct =~ m!\btext/[xh]+tml\b!i;
+
+ my $enc = enc_for($ct, $enc_msg);
if ($part_nr > 0) {
my $fn = $part->filename;
"$pad " . ascii_html($fn) . " $pad\n";
}
+my $LINK_RE = qr!\b((?:ftp|https?|nntp)://[@\w\+\&\?\.\%\;/#=-]+)!;
+
+sub linkify {
+ # no newlines added here since it'd break the splitting we do
+ # to fold quotes
+ $_[0] =~ s!$LINK_RE!<a href="$1">$1</a>!g;
+}
+
sub add_text_body_short {
my ($enc, $part, $part_nr, $full_pfx) = @_;
my $n = 0;
my $s = ascii_html($enc->decode($part->body));
+ linkify($s);
$s =~ s!^((?:(?:>[^\n]*)\n)+)!
my $cur = $1;
my @lines = split(/\n/, $cur);
}
} while (@sum && length($cur) < MAX_TRUNC_LEN);
$cur =~ s/ \z/ .../;
- "> <<a href=\"${full_pfx}#q${part_nr}_" . $n++ .
+ "> <<a\nhref=\"${full_pfx}#q${part_nr}_" . $n++ .
"\">$cur<\/a>>\n";
} else {
$cur;
my ($enc, $part, $part_nr) = @_;
my $n = 0;
my $s = ascii_html($enc->decode($part->body));
+ linkify($s);
$s =~ s!^((?:(?:>[^\n]*)\n)+)!
my $cur = $1;
my @lines = split(/\n/, $cur);
if (@lines > MAX_INLINE_QUOTED) {
- "<a name=q${part_nr}_" . $n++ . ">$cur</a>";
+ "<a\nid=q${part_nr}_" . $n++ . ">$cur</a>";
} else {
$cur;
}
$s;
}
-sub trim_message_id {
- my ($mid) = @_;
- $mid =~ s/\A\s*<//;
- $mid =~ s/>\s*\z//;
- my $html = ascii_html($mid);
- my $href = ascii_html(uri_escape($mid));
-
- ($html, $href);
-}
-
-sub ascii_html {
- $enc_ascii->encode(escapeHTML($_[0]), Encode::HTMLCREF);
-}
-
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 =~ tr/\n/ /s;
- $v =~ tr/\r//d;
- my $raw = $enc_mime->decode($v);
- $v = ascii_html($raw);
- $rv .= "$h: $v\n";
+ 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($raw);
- $raw = $from[0]->name;
- unless (defined($raw) && length($raw)) {
- $raw = '<' . $from[0]->address . '>';
+ my @from = Email::Address->parse($v->raw);
+ $v = $from[0]->name;
+ unless (defined($v) && length($v)) {
+ $v = '<' . $from[0]->address . '>';
}
- $title[1] = ascii_html($raw);
-
+ $title[1] = ascii_html($v);
} elsif ($h eq 'Subject') {
- $title[0] = $v;
+ $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);
- $rv .= "Message-ID: <$html> ";
- $rv .= "(<a href=\"$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;
+ $rv .= "(<a\nhref=\"$href.txt\">raw</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);
+ my $v = PublicInbox::Hval->new_msgid($irp);
+ my $html = $v->as_html;
+ my $href = $v->as_href;
$rv .= "In-Reply-To: <";
- $rv .= "<a href=\"$href.html\">$html</a>>\n";
+ $rv .= "<a\nhref=\"$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);
+ '</title></head><body>' . PRE_WRAP . $rv);
+}
+
+sub html_footer {
+ my ($mime, $standalone) = @_;
+ 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 if $standalone;
+
+ 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(',', sort values %cc));
+ my $href = "mailto:$to?In-Reply-To=$irp&Cc=${cc}&Subject=$subj";
+
+ my $idx = $standalone ? " <a\nhref=\"../\">index</a>" : '';
+
+ "<a\nhref=\"" . ascii_html($href) . '">reply</a>' . $idx;
+}
+
+sub linkify_refs {
+ join(' ', map {
+ my $v = PublicInbox::Hval->new_msgid($_);
+ my $html = $v->as_html;
+ my $href = $v->as_href;
+ "<<a\nhref=\"$href.html\">$html</a>>";
+ } @_);
+}
+
+sub anchor_for {
+ my ($msgid) = @_;
+ 'm' . mid_compressed(mid_clean($msgid));
}
1;