X-Git-Url: http://www.git.stargrave.org/?a=blobdiff_plain;f=lib%2FPublicInbox%2FView.pm;h=47082431ec8fa375580c7b85afa95117ea0496a9;hb=118ac5c2dc0e7a193ff58f2a9003636e1353583c;hp=674d7b7cdfb73c77172c59485dea33c60908d3f7;hpb=ec1d0105e6f758ced83902b92b25df0c4b75613d;p=public-inbox.git

diff --git a/lib/PublicInbox/View.pm b/lib/PublicInbox/View.pm
index 674d7b7c..47082431 100644
--- a/lib/PublicInbox/View.pm
+++ b/lib/PublicInbox/View.pm
@@ -3,44 +3,224 @@
 package PublicInbox::View;
 use strict;
 use warnings;
-use PublicInbox::Hval;
 use URI::Escape qw/uri_escape_utf8/;
+use Date::Parse qw/str2time/;
 use Encode qw/find_encoding/;
 use Encode::MIME::Header;
 use Email::MIME::ContentType qw/parse_content_type/;
+use PublicInbox::Hval;
+use PublicInbox::MID qw/mid_clean mid_compressed mid2path/;
+use Digest::SHA;
+require POSIX;
 
 # TODO: make these constants tunable
-use constant MAX_INLINE_QUOTED => 5;
+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\">";
+use constant T_ANCHOR => '#u';
 
 *ascii_html = *PublicInbox::Hval::ascii_html;
 
 my $enc_utf8 = find_encoding('UTF-8');
-my $enc_mime = find_encoding('MIME-Header');
 
 # public functions:
 sub msg_html {
-	my ($class, $mime, $full_pfx) = @_;
-
-	headers_to_html_header($mime, $full_pfx) .
+	my ($class, $mime, $full_pfx, $footer, $srch) = @_;
+	if (defined $footer) {
+		$footer = "\n" . $footer;
+	} else {
+		$footer = '';
+	}
+	headers_to_html_header($mime, $full_pfx, $srch) .
 		multipart_text_as_html($mime, $full_pfx) .
-		'</pre><hr /><pre>' .
-		html_footer($mime) .
+		'</pre><hr />' . PRE_WRAP .
+		html_footer($mime, 1, $full_pfx, $srch) . $footer .
 		'</pre></body></html>';
 }
 
 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>
+# state = [ time, seen = {}, first_commit, page_nr = 0 ]
+sub index_entry {
+	my (undef, $mime, $level, $state) = @_;
+	my (undef, $seen, $first_commit) = @$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 $root_anchor = $seen->{root_anchor};
+	my $path;
+	my $more = 'permalink';
+	if ($root_anchor) {
+		$path = '../';
+		$subj = "<u\nid=\"u\">$subj</u>" if $root_anchor eq $id;
+	} else {
+		$path = '';
+	}
+
+	my $ts = $mime->header('X-PI-TS');
+	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 $irt = $header_obj->header_raw('In-Reply-To');
+	my ($anchor_idx, $anchor, $t_anchor);
+	if (defined $irt) {
+		$anchor_idx = anchor_for($irt);
+		$anchor = $seen->{$anchor_idx};
+		$t_anchor = T_ANCHOR;
+	} else {
+		$t_anchor = '';
+	}
+	my $href = $mid->as_href;
+	my $mhref = "${path}m/$href.html";
+	my $fhref = "${path}f/$href.html";
+	# scan through all parts, looking for displayable text
+	$mime->walk_parts(sub {
+		$rv .= index_walk($_[0], $pfx, $enc_msg, $part_nr, $fhref,
+				  \$more);
+		$part_nr++;
+	});
+
+	$rv .= "\n$pfx<a\nhref=\"$mhref\">$more</a> ";
+	my $txt = "${path}m/$href.txt";
+	$rv .= "<a\nhref=\"$txt\">raw</a> ";
+	$rv .= html_footer($mime, 0);
+
+	if (defined $irt) {
+		unless (defined $anchor) {
+			my $v = PublicInbox::Hval->new_msgid($irt);
+			$v = $v->as_href;
+			$anchor = "${path}m/$v.html";
+			$seen->{$anchor_idx} = $anchor;
+		}
+		$rv .= " <a\nhref=\"$anchor\">parent</a>";
+	}
+
+	if ($first_commit) {
+		$rv .= " <a\nhref=\"t/$href.html$t_anchor\">thread</a>";
+	}
+
+	$rv . "\n\n";
+}
+
+sub thread_html {
+	my (undef, $ctx, $foot, $srch) = @_;
+	my $mid = mid_compressed($ctx->{mid});
+	my $res = $srch->get_thread($mid);
+	my $rv = '';
+	my $msgs = load_results($ctx, $res);
+	my $nr = scalar @$msgs;
+	return $rv if $nr == 0;
+	require PublicInbox::Thread;
+	my $th = PublicInbox::Thread->new(@$msgs);
+	$th->thread;
+	$th->order(*PublicInbox::Thread::sort_ts);
+	my $state = [ undef, { root_anchor => anchor_for($mid) }, undef, 0 ];
+	thread_entry(\$rv, $state, $_, 0) for $th->rootset;
+	my $final_anchor = $state->[3];
+	my $next = "<a\nid=\"s$final_anchor\">end of thread</a>\n";
+
+	$rv .= "</pre><hr />" . PRE_WRAP . $next . $foot . "</pre>";
+}
+
+sub subject_path_html {
+	my (undef, $ctx, $foot, $srch) = @_;
+	my $path = $ctx->{subject_path};
+	my $res = $srch->get_subject_path($path);
+	my $rv = '';
+	my $msgs = load_results($ctx, $res);
+	my $nr = scalar @$msgs;
+	return $rv if $nr == 0;
+	require PublicInbox::Thread;
+	my $th = PublicInbox::Thread->new(@$msgs);
+	$th->thread;
+	$th->order(*PublicInbox::Thread::sort_ts);
+	my $state = [ undef, { root_anchor => 'dummy' }, undef, 0 ];
+	thread_entry(\$rv, $state, $_, 0) for $th->rootset;
+	my $final_anchor = $state->[3];
+	my $next = "<a\nid=\"s$final_anchor\">end of thread</a>\n";
+
+	$rv .= "</pre><hr />" . PRE_WRAP . $next . $foot . "</pre>";
+}
 
 # only private functions below.
 
+sub index_walk {
+	my ($part, $pfx, $enc_msg, $part_nr, $fhref, $more) = @_;
+	my $rv = '';
+	return $rv 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 lines
+	$s =~ s/^\s*$//sgm;
+	$s =~ s/\s+\z//s;
+
+	if (length $s) {
+		# add prefix:
+		$s =~ s/^/$pfx/sgm;
+
+		# kill per-line trailing whitespace
+		$s =~ s/[ \t]+$//sgm;
+
+		$rv .= $s . "\n";
+	}
+	$rv;
+}
+
 sub enc_for {
-	my ($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}) {
@@ -48,11 +228,11 @@ sub enc_for {
 			return $enc if $enc;
 		}
 	}
-	$enc_utf8;
+	$default;
 }
 
 sub multipart_text_as_html {
-	my ($mime, $full_pfx) = @_;
+	my ($mime, $full_pfx, $srch) = @_;
 	my $rv = "";
 	my $part_nr = 0;
 	my $enc_msg = enc_for($mime->header("Content-Type"));
@@ -61,7 +241,12 @@ 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 = $part->filename;
@@ -91,11 +276,19 @@ sub add_filename_line {
 	"$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($part->body));
-	# TODO: fold the "so-and-so wrote:" attribute line here, too:
+	linkify($s);
 	$s =~ s!^((?:(?:&gt;[^\n]*)\n)+)!
 		my $cur = $1;
 		my @lines = split(/\n/, $cur);
@@ -116,7 +309,7 @@ sub add_text_body_short {
 				}
 			} while (@sum && length($cur) < MAX_TRUNC_LEN);
 			$cur =~ s/ \z/ .../;
-			"&gt; &lt;<a href=\"${full_pfx}#q${part_nr}_" . $n++ .
+			"&gt; &lt;<a\nhref=\"${full_pfx}#q${part_nr}_" . $n++ .
 				"\">$cur<\/a>&gt;\n";
 		} else {
 			$cur;
@@ -129,11 +322,12 @@ sub add_text_body_full {
 	my ($enc, $part, $part_nr) = @_;
 	my $n = 0;
 	my $s = ascii_html($enc->decode($part->body));
+	linkify($s);
 	$s =~ s!^((?:(?:&gt;[^\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;
 		}
@@ -142,7 +336,7 @@ sub add_text_body_full {
 }
 
 sub headers_to_html_header {
-	my ($mime, $full_pfx) = @_;
+	my ($mime, $full_pfx, $srch) = @_;
 
 	my $rv = "";
 	my @title;
@@ -150,42 +344,43 @@ sub headers_to_html_header {
 		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);
+			$title[1] = ascii_html($from[0]->name);
 		} elsif ($h eq 'Subject') {
 			$title[0] = $v->as_html;
+			if ($srch) {
+				my $path = $srch->subject_path($v->raw);
+				$rv .= "$h: <a\nhref=\"../s/$path.html\">";
+				$rv .= $v->as_html . "</a>\n";
+				next;
+			}
 		}
+		$rv .= "$h: " . $v->as_html . "\n";
+
 	}
 
 	my $header_obj = $mime->header_obj;
 	my $mid = $header_obj->header_raw('Message-ID');
-	if (defined $mid) {
-		$mid = PublicInbox::Hval->new_msgid($mid);
-		$rv .= 'Message-ID: &lt;' . $mid->as_html . '&gt; ';
-		my $href = $mid->as_href;
-		$href = "../m/$href" unless $full_pfx;
-		$rv .= "(<a href=\"$href.txt\">original</a>)\n";
-	}
-
-	my $irp = $header_obj->header_raw('In-Reply-To');
-	if (defined $irp) {
-		my $v = PublicInbox::Hval->new_msgid(my $tmp = $irp);
+	$mid = PublicInbox::Hval->new_msgid($mid);
+	$rv .= 'Message-ID: &lt;' . $mid->as_html . '&gt; ';
+	my $href = $mid->as_href;
+	$href = "../m/$href" unless $full_pfx;
+	$rv .= "(<a\nhref=\"$href.txt\">raw</a>)\n";
+
+	my $irt = $header_obj->header_raw('In-Reply-To');
+	if (defined $irt) {
+		my $v = PublicInbox::Hval->new_msgid($irt);
 		my $html = $v->as_html;
 		my $href = $v->as_href;
 		$rv .= "In-Reply-To: &lt;";
-		$rv .= "<a href=\"$href.html\">$html</a>&gt;\n";
+		$rv .= "<a\nhref=\"$href.html\">$html</a>&gt;\n";
 	}
 
 	my $refs = $header_obj->header_raw('References');
 	if ($refs) {
-		$refs =~ s/\s*\Q$irp\E\s*// if (defined $irp);
+		$refs =~ s/\s*\Q$irt\E\s*// if (defined $irt);
 		my @refs = ($refs =~ /<([^>]+)>/g);
 		if (@refs) {
 			$rv .= 'References: '. linkify_refs(@refs) . "\n";
@@ -195,11 +390,11 @@ sub headers_to_html_header {
 	$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 ($mime) = @_;
+	my ($mime, $standalone, $full_pfx, $srch) = @_;
 	my %cc; # everyone else
 	my $to; # this is the From address
 
@@ -214,20 +409,45 @@ sub html_footer {
 			$to ||= $dst;
 		}
 	}
-	Email::Address->purge_cache;
+	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') || '');
+	my $mid = $mime->header_obj->header_raw('Message-ID');
+	my $irt = uri_escape_utf8($mid);
 	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";
+	my $cc = uri_escape_utf8(join(',', sort values %cc));
+	my $href = "mailto:$to?In-Reply-To=$irt&Cc=${cc}&Subject=$subj";
+
+	my $idx = $standalone ? " <a\nhref=\"../\">index</a>" : '';
+	if ($idx && $srch) {
+		$irt = $mime->header_obj->header_raw('In-Reply-To') || '';
+		$mid = mid_compressed(mid_clean($mid));
+		my $t_anchor = length $irt ? T_ANCHOR : '';
+		$idx = " <a\nhref=\"../t/$mid.html$t_anchor\">thread</a>$idx";
+		my $res = $srch->get_replies($mid);
+		if (my $c = $res->{count}) {
+			$c = $c == 1 ? '1 reply' : "$c replies";
+			$idx .= "\n$c:\n";
+			thread_replies(\$idx, $mime, $res);
+		} else {
+			$idx .= "\n(no replies yet)\n";
+		}
+		if ($irt) {
+			$irt = PublicInbox::Hval->new_msgid($irt);
+			$irt = $irt->as_href;
+			$irt = "<a\nhref=\"$irt\">parent</a> ";
+		} else {
+			$irt = ' ' x length('parent ');
+		}
+	} else {
+		$irt = '';
+	}
 
-	'<a href="' . ascii_html($href) . '">reply</a>';
+	"$irt<a\nhref=\"" . ascii_html($href) . '">reply</a>' . $idx;
 }
 
 sub linkify_refs {
@@ -235,8 +455,122 @@ sub linkify_refs {
 		my $v = PublicInbox::Hval->new_msgid($_);
 		my $html = $v->as_html;
 		my $href = $v->as_href;
-		"&lt;<a href=\"$href.html\">$html</a>&gt;";
+		"&lt;<a\nhref=\"$href.html\">$html</a>&gt;";
 	} @_);
 }
 
+sub anchor_for {
+	my ($msgid) = @_;
+	'm' . mid_compressed(mid_clean($msgid));
+}
+
+sub simple_dump {
+	my ($dst, $root, $node, $level) = @_;
+	my $pfx = '  ' x $level;
+	$$dst .= $pfx;
+	if (my $x = $node->message) {
+		my $mid = $x->header('Message-ID');
+		if ($root->[0] ne $mid) {
+			my $s = $x->header('Subject');
+			my $h = hash_subj($s);
+			if ($root->[1]->{$h}) {
+				$s = '';
+			} else {
+				$root->[1]->{$h} = 1;
+				$s = PublicInbox::Hval->new($s);
+				$s = $s->as_html;
+			}
+			my $m = PublicInbox::Hval->new_msgid($mid);
+			my $f = PublicInbox::Hval->new($x->header('X-PI-From'));
+			my $d = PublicInbox::Hval->new($x->header('X-PI-Date'));
+			$m = $m->as_href . '.html';
+			$f = $f->as_html;
+			$d = $d->as_html . ' UTC';
+			if (length($s) == 0) {
+				$$dst .= "` <a\nhref=\"$m\">$f @ $d</a>\n";
+			} else {
+				$$dst .= "` <a\nhref=\"$m\">$s</a>\n" .
+				     "$pfx  by $f @ $d\n";
+			}
+		}
+	}
+	simple_dump($dst, $root, $node->child, $level + 1) if $node->child;
+	simple_dump($dst, $root, $node->next, $level) if $node->next;
+}
+
+sub hash_subj {
+	my ($subj) = @_;
+	$subj =~ s/\A\s+//;
+	$subj =~ s/\s+\z//;
+	$subj =~ s/^(?:re|aw):\s*//i; # remove reply prefix (aw: German)
+	$subj =~ s/\s+/ /;
+	Digest::SHA::sha1($subj);
+}
+
+sub thread_replies {
+	my ($dst, $root, $res) = @_;
+	my @msgs = map { $_->mini_mime } @{$res->{msgs}};
+	foreach (@{$res->{msgs}}) {
+		print STDERR "smsg->path: <", $_->path, ">\n";
+	}
+	require PublicInbox::Thread;
+	$root->header_set('X-PI-TS', '0');
+	my $th = PublicInbox::Thread->new($root, @msgs);
+	$th->thread;
+	$th->order(*PublicInbox::Thread::sort_ts);
+	$root = [ $root->header('Message-ID'),
+		  { hash_subj($root->header('Subject')) => 1 } ];
+	simple_dump($dst, $root, $_, 0) for $th->rootset;
+}
+
+sub thread_html_head {
+	my ($mime) = @_;
+	my $s = PublicInbox::Hval->new_oneline($mime->header('Subject'));
+	$s = $s->as_html;
+	"<html><head><title>$s</title></head><body>" . PRE_WRAP
+
+}
+
+sub thread_entry {
+	my ($dst, $state, $node, $level) = @_;
+	# $state = [ $search_res, $seen, undef, 0 (msg_nr) ];
+	# $seen is overloaded with 3 types of fields:
+	#	1) "root_anchor" => anchor_for(Message-ID),
+	#	2) seen subject hashes: sha1(subject) => 1
+	#	3) anchors hashes: "#$sha1_hex" (same as $seen in index_entry)
+	if (my $mime = $node->message) {
+		if (length($$dst) == 0) {
+			$$dst .= thread_html_head($mime);
+		}
+		$$dst .= index_entry(undef, $mime, $level, $state);
+	}
+	thread_entry($dst, $state, $node->child, $level + 1) if $node->child;
+	thread_entry($dst, $state, $node->next, $level) if $node->next;
+}
+
+sub load_results {
+	my ($ctx, $res) = @_;
+
+	require PublicInbox::GitCatFile;
+	my $git = PublicInbox::GitCatFile->new($ctx->{git_dir});
+	my @msgs;
+	while (my $smsg = shift @{$res->{msgs}}) {
+		my $m = $smsg->mid;
+		my $path = mid2path($m);
+
+		# FIXME: duplicated code from Feed.pm
+		my $mime = eval {
+			my $str = $git->cat_file("HEAD:$path");
+			Email::MIME->new($str);
+		};
+		unless ($@) {
+			my $t = eval { str2time($mime->header('Date')) };
+			defined($t) or $t = 0;
+			$mime->header_set('X-PI-TS', $t);
+			push @msgs, $mime;
+		}
+	}
+	\@msgs;
+}
+
 1;