X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=lib%2FFile%2FKDBX%2FUtil.pm;h=f1b997619fee6783b4a9e349b83f5434436b308e;hb=1d0a10e989a4d0487aa13cf4f56e533d3795469d;hp=3355d41fa1d3454c119a14dbd98d900abef70083;hpb=05e0bcef1c2165c556b910314312866dc4a667b7;p=chaz%2Fp5-File-KDBX

diff --git a/lib/File/KDBX/Util.pm b/lib/File/KDBX/Util.pm
index 3355d41..f1b9976 100644
--- a/lib/File/KDBX/Util.pm
+++ b/lib/File/KDBX/Util.pm
@@ -12,14 +12,18 @@ use File::KDBX::Error;
 use List::Util 1.33 qw(any all);
 use Module::Load;
 use Ref::Util qw(is_arrayref is_coderef is_hashref is_ref is_refref is_scalarref);
-use Scalar::Util qw(blessed readonly);
+use Scalar::Util qw(blessed looks_like_number readonly);
+use Time::Piece;
+use boolean;
 use namespace::clean -except => 'import';
 
 our $VERSION = '999.999'; # VERSION
 
 our %EXPORT_TAGS = (
     assert      => [qw(assert_64bit)],
+    class       => [qw(extends has list_attributes)],
     clone       => [qw(clone clone_nomagic)],
+    coercion    => [qw(to_bool to_number to_string to_time to_tristate to_uuid)],
     crypt       => [qw(pad_pkcs7)],
     debug       => [qw(dumper)],
     fork        => [qw(can_fork)],
@@ -31,7 +35,7 @@ our %EXPORT_TAGS = (
     load        => [qw(load_optional load_xs try_load_optional)],
     search      => [qw(query search search_limited simple_expression_query)],
     text        => [qw(snakify trim)],
-    uuid        => [qw(format_uuid generate_uuid is_uuid uuid)],
+    uuid        => [qw(format_uuid generate_uuid is_uuid uuid UUID_NULL)],
     uri         => [qw(split_url uri_escape_utf8 uri_unescape_utf8)],
 );
 
@@ -81,6 +85,7 @@ my %OP_NEG = (
     '=~'    =>  '!~',
     '!~'    =>  '=~',
 );
+my %ATTRIBUTES;
 
 =func load_xs
 
@@ -219,7 +224,8 @@ sub dumper {
         # boolean
         $str =~ s/bless\( do\{\\\(my \$o = ([01])\)\}, 'boolean' \)/boolean($1)/gs;
         # Time::Piece
-        $str =~ s/bless\([^\)]+?(\d+)'?,\s+\d+,?\s+\], 'Time::Piece' \)/Time::Piece->new($1)/gs;
+        $str =~ s/bless\([^\)]+?(\d+)'?,\s+\d+,?\s+\], 'Time::Piece' \),/
+            "scalar gmtime($1), # " . scalar gmtime($1)->datetime/ges;
 
         print STDERR $str if !defined wantarray;
         push @dumps, $str;
@@ -359,6 +365,78 @@ sub erase_scoped {
     return Scope::Guard->new(sub { erase(@args) });
 }
 
+=func extends
+
+    extends $class;
+
+Set up the current module to inheret from another module.
+
+=cut
+
+sub extends {
+    my $parent  = shift;
+    my $caller  = caller;
+    load $parent;
+    no strict 'refs'; ## no critic (ProhibitNoStrict)
+    @{"${caller}::ISA"} = $parent;
+}
+
+=func has
+
+    has $name => %options;
+
+Create an attribute getter/setter. Possible options:
+
+=for :list
+* C<is> - Either "rw" (default) or "ro"
+* C<default> - Default value
+* C<coerce> - Coercive function
+
+=cut
+
+sub has {
+    my $name = shift;
+    my %args = @_ % 2 == 1 ? (default => shift, @_) : @_;
+
+    my ($package, $file, $line) = caller;
+
+    my $d = $args{default};
+    my $default = is_arrayref($d) ? sub { [@$d] } : is_hashref($d) ? sub { +{%$d} } : $d;
+    my $coerce  = $args{coerce};
+    my $is      = $args{is} || 'rw';
+
+    my $store = $args{store};
+    ($store, $name) = split(/\./, $name, 2) if $name =~ /\./;
+    push @{$ATTRIBUTES{$package} //= []}, $name;
+
+    my $store_code = '';
+    $store_code = qq{->$store} if $store;
+    my $member = qq{\$_[0]$store_code\->{'$name'}};
+
+    my $default_code = is_coderef $default ? q{scalar $default->($_[0])}
+                        : defined $default ? q{$default}
+                                           : q{undef};
+    my $get = qq{$member //= $default_code;};
+
+    my $set = '';
+    if ($is eq 'rw') {
+        $set = is_coderef $coerce ? qq{$member = scalar \$coerce->(\@_[1..\$#_]) if \$#_;}
+                : defined $coerce ? qq{$member = do { local @_ = (\@_[1..\$#_]); $coerce } if \$#_;}
+                                  : qq{$member = \$_[1] if \$#_;};
+    }
+
+    $line -= 4;
+    my $code = <<END;
+# line $line "$file"
+sub ${package}::${name} {
+    return $default_code if !Scalar::Util::blessed(\$_[0]);
+    $set
+    $get
+}
+END
+    eval $code; ## no critic (ProhibitStringyEval)
+}
+
 =func format_uuid
 
     $string_uuid = format_uuid($raw_uuid);
@@ -486,6 +564,19 @@ Check if a thing is a UUID (i.e. scalar string of length 16).
 
 sub is_uuid { defined $_[0] && !is_ref($_[0]) && length($_[0]) == 16 }
 
+=func list_attributes
+
+    @attributes = list_attributes($package);
+
+Get a list of attributes for a class.
+
+=cut
+
+sub list_attributes {
+    my $package = shift;
+    return @{$ATTRIBUTES{$package} // []};
+}
+
 =func load_optional
 
     $package = load_optional($package);
@@ -637,6 +728,10 @@ sub search {
     return \@match;
 }
 
+=for Pod::Coverage search_limited
+
+=cut
+
 sub search_limited {
     my $list    = shift;
     my $query   = shift;
@@ -764,6 +859,39 @@ sub split_url {
     return ($scheme, $auth, $host, $port, $path, $query, $hash, $username, $password);
 }
 
+=func to_bool
+
+=func to_number
+
+=func to_string
+
+=func to_time
+
+=func to_tristate
+
+=func to_uuid
+
+Various typecasting / coercive functions.
+
+=cut
+
+sub to_bool   { $_[0] // return; boolean($_[0]) }
+sub to_number { $_[0] // return; 0+$_[0] }
+sub to_string { $_[0] // return; "$_[0]" }
+sub to_time   {
+    $_[0] // return;
+    return gmtime($_[0]) if looks_like_number($_[0]);
+    return Time::Piece->strptime($_[0], '%Y-%m-%d %H:%M:%S') if !blessed $_[0];
+    return $_[0];
+}
+sub to_tristate { $_[0] // return; boolean($_[0]) }
+sub to_uuid {
+    my $str = to_string(@_) // return;
+    return sprintf('%016s', $str) if length($str) < 16;
+    return substr($str, 0, 16) if 16 < length($str);
+    return $str;
+}
+
 =func trim
 
     $string = trim($string);
@@ -848,6 +976,14 @@ sub uuid {
 
 }
 
+=func UUID_NULL
+
+Get the null UUID (i.e. string of 16 null bytes).
+
+=cut
+
+sub UUID_NULL() { "\0" x 16 }
+
 ### --------------------------------------------------------------------------
 
 # Determine if an array looks like keypairs from a hash.