imap+nntp: share COMPRESS implementation

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

diff --git a/lib/PublicInbox/Hval.pm b/lib/PublicInbox/Hval.pm
index 79005d2109499aae4b4abe6cf216a7583c909ad1..00b3c8b45946abff63461132bac7075307253b5b 100644 (file)
--- a/lib/PublicInbox/Hval.pm
+++ b/lib/PublicInbox/Hval.pm
@@ -1,4 +1,4 @@
-# Copyright (C) 2014-2020 all contributors <meta@public-inbox.org>
+# Copyright (C) 2014-2021 all contributors <meta@public-inbox.org>
 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
 #
 # represents a header value in various forms.  Used for HTML generation
@@ -10,7 +10,8 @@ use Encode qw(find_encoding);
 use PublicInbox::MID qw/mid_clean mid_escape/;
 use base qw/Exporter/;
 our @EXPORT_OK = qw/ascii_html obfuscate_addrs to_filename src_escape
-               to_attr prurl mid_href/;
+               to_attr prurl mid_href fmt_ts ts2str/;
+use POSIX qw(strftime);
 my $enc_ascii = find_encoding('us-ascii');
 
 # safe-ish acceptable filename pattern for portability
@@ -33,7 +34,7 @@ my %escape_sequence = (
        "\x7f" => '\\x7f', # DEL
 );
 
-my %xhtml_map = (
+our %xhtml_map = (
        '"' => '&#34;',
        '&' => '&#38;',
        "'" => '&#39;',
@@ -78,28 +79,35 @@ sub prurl ($$) {
 # However, &#8226; was chosen to make copy+paste errors more obvious
 sub obfuscate_addrs ($$;$) {
        my $ibx = $_[0];
-       my $repl = $_[2] || '&#8226;';
+       my $repl = $_[2] // '&#8226;';
        my $re = $ibx->{-no_obfuscate_re}; # regex of domains
-       my $addrs = $ibx->{-no_obfuscate}; # { adddress => 1 }
-       $_[1] =~ s/(([\w\.\+=\-]+)\@([\w\-]+\.[\w\.\-]+))/
-               my ($addr, $user, $domain) = ($1, $2, $3);
-               if ($addrs->{$addr} || ((defined $re && $domain =~ $re))) {
-                       $addr;
+       my $addrs = $ibx->{-no_obfuscate}; # { $address => 1 }
+       $_[1] =~ s#(\S+)\@([\w\-]+\.[\w\.\-]+)#
+               my ($pfx, $domain) = ($1, $2);
+               if (index($pfx, '://') > 0 || $pfx !~ s/([\w\.\+=\-]+)\z//) {
+                       "$pfx\@$domain";
                } else {
-                       $domain =~ s!([^\.]+)\.!$1$repl!;
-                       $user . '@' . $domain
+                       my $user = $1;
+                       my $addr = "$user\@$domain";
+                       if ($addrs->{$addr} || ((defined($re) &&
+                                               $domain =~ $re))) {
+                               $pfx.$addr;
+                       } else {
+                               $domain =~ s!([^\.]+)\.!$1$repl!;
+                               $pfx . $user . '@' . $domain
+                       }
                }
-               /sge;
+               #sge;
 }
 
 # like format_sanitized_subject in git.git pretty.c with '%f' format string
 sub to_filename ($) {
-       my ($s, undef) = split(/\n/, $_[0]);
+       my $s = (split(/\n/, $_[0]))[0] // return; # empty string => undef
        $s =~ s/[^A-Za-z0-9_\.]+/-/g;
        $s =~ tr/././s;
        $s =~ s/[\.\-]+\z//;
        $s =~ s/\A[\.\-]+//;
-       $s
+       $s eq '' ? undef : $s;
 }
 
 # convert a filename (or any string) to HTML attribute
@@ -123,4 +131,10 @@ sub to_attr ($) {
        $first . $str;
 }
 
+# for the t= query parameter passed to overview DB
+sub ts2str ($) { strftime('%Y%m%d%H%M%S', gmtime($_[0])) };
+
+# human-friendly format
+sub fmt_ts ($) { strftime('%Y-%m-%d %k:%M', gmtime($_[0])) }
+
 1;