Commit | Line | Data |
1a6a8453 |
1 | package IO::Uncompress::AnyUncompress ; |
2 | |
3 | use strict; |
4 | use warnings; |
5 | |
6 | use Compress::Zlib::Common qw(createSelfTiedObject); |
7 | |
8 | #use IO::Uncompress::Base ; |
9 | use IO::Uncompress::Gunzip ; |
10 | use IO::Uncompress::Inflate ; |
11 | use IO::Uncompress::RawInflate ; |
12 | use IO::Uncompress::Unzip ; |
13 | |
14 | BEGIN |
15 | { |
16 | eval { require UncompressPlugin::Bunzip2; import UncompressPlugin::Bunzip2 }; |
17 | eval { require UncompressPlugin::LZO; import UncompressPlugin::LZO }; |
18 | eval { require IO::Uncompress::Bunzip2; import IO::Uncompress::Bunzip2 }; |
19 | eval { require IO::Uncompress::UnLzop; import IO::Uncompress::UnLzop }; |
20 | } |
21 | |
22 | require Exporter ; |
23 | |
24 | our ($VERSION, @ISA, @EXPORT_OK, %EXPORT_TAGS, $AnyUncompressError); |
25 | |
26 | $VERSION = '2.000_05'; |
27 | $AnyUncompressError = ''; |
28 | |
29 | @ISA = qw( Exporter IO::Uncompress::Base ); |
30 | @EXPORT_OK = qw( $AnyUncompressError anyuncompress ) ; |
31 | %EXPORT_TAGS = %IO::Uncompress::Base::DEFLATE_CONSTANTS ; |
32 | push @{ $EXPORT_TAGS{all} }, @EXPORT_OK ; |
33 | Exporter::export_ok_tags('all'); |
34 | |
35 | # TODO - allow the user to pick a set of the three formats to allow |
36 | # or just assume want to auto-detect any of the three formats. |
37 | |
38 | sub new |
39 | { |
40 | my $class = shift ; |
41 | my $obj = createSelfTiedObject($class, \$AnyUncompressError); |
42 | $obj->_create(undef, 0, @_); |
43 | } |
44 | |
45 | sub anyuncompress |
46 | { |
47 | my $obj = createSelfTiedObject(undef, \$AnyUncompressError); |
48 | return $obj->_inf(@_) ; |
49 | } |
50 | |
51 | sub getExtraParams |
52 | { |
53 | return (); |
54 | } |
55 | |
56 | sub ckParams |
57 | { |
58 | my $self = shift ; |
59 | my $got = shift ; |
60 | |
61 | # any always needs both crc32 and adler32 |
62 | $got->value('CRC32' => 1); |
63 | $got->value('ADLER32' => 1); |
64 | |
65 | return 1; |
66 | } |
67 | |
68 | sub mkUncomp |
69 | { |
70 | my $self = shift ; |
71 | my $class = shift ; |
72 | my $got = shift ; |
73 | |
74 | # try zlib first |
75 | my ($obj, $errstr, $errno) = UncompressPlugin::Inflate::mkUncompObject(); |
76 | |
77 | return $self->saveErrorString(undef, $errstr, $errno) |
78 | if ! defined $obj; |
79 | |
80 | *$self->{Uncomp} = $obj; |
81 | |
82 | my $magic = $self->ckMagic( qw( RawInflate Inflate Gunzip Unzip ) ); |
83 | |
84 | if ($magic) { |
85 | *$self->{Info} = $self->readHeader($magic) |
86 | or return undef ; |
87 | |
88 | return 1; |
89 | } |
90 | |
91 | #foreach my $type ( qw( Bunzip2 UnLzop ) ) { |
92 | if (defined $IO::Uncompress::Bunzip2::VERSION and |
93 | $magic = $self->ckMagic('Bunzip2')) { |
94 | *$self->{Info} = $self->readHeader($magic) |
95 | or return undef ; |
96 | |
97 | my ($obj, $errstr, $errno) = UncompressPlugin::Bunzip2::mkUncompObject(); |
98 | |
99 | return $self->saveErrorString(undef, $errstr, $errno) |
100 | if ! defined $obj; |
101 | |
102 | *$self->{Uncomp} = $obj; |
103 | |
104 | return 1; |
105 | } |
106 | elsif (defined $IO::Uncompress::UnLzop::VERSION and |
107 | $magic = $self->ckMagic('UnLzop')) { |
108 | |
109 | *$self->{Info} = $self->readHeader($magic) |
110 | or return undef ; |
111 | |
112 | my ($obj, $errstr, $errno) = UncompressPlugin::LZO::mkUncompObject(); |
113 | |
114 | return $self->saveErrorString(undef, $errstr, $errno) |
115 | if ! defined $obj; |
116 | |
117 | *$self->{Uncomp} = $obj; |
118 | |
119 | return 1; |
120 | } |
121 | |
122 | return 0 ; |
123 | } |
124 | |
125 | |
126 | |
127 | sub ckMagic |
128 | { |
129 | my $self = shift; |
130 | my @names = @_ ; |
131 | |
132 | my $keep = ref $self ; |
133 | for my $class ( map { "IO::Uncompress::$_" } @names) |
134 | { |
135 | bless $self => $class; |
136 | my $magic = $self->ckMagic(); |
137 | |
138 | if ($magic) |
139 | { |
140 | #bless $self => $class; |
141 | return $magic ; |
142 | } |
143 | |
144 | $self->pushBack(*$self->{HeaderPending}) ; |
145 | *$self->{HeaderPending} = '' ; |
146 | } |
147 | |
148 | bless $self => $keep; |
149 | return undef; |
150 | } |
151 | |
152 | 1 ; |
153 | |
154 | __END__ |
155 | |
156 | |