Mercurial > pub > Impl
annotate Lib/IMPL/Code/Loader.pm @ 393:69a1f1508696
minor security refactoring
| author | cin |
|---|---|
| date | Fri, 14 Feb 2014 16:41:12 +0400 |
| parents | 4ddb27ff4a0b |
| children |
| rev | line source |
|---|---|
| 165 | 1 package IMPL::Code::Loader; |
| 2 use strict; | |
| 3 use warnings; | |
| 4 | |
| 230 | 5 use IMPL::Const qw(:prop); |
| 274 | 6 use File::Spec; |
| 209 | 7 use IMPL::declare { |
| 8 require => { | |
| 9 Exception => 'IMPL::Exception', | |
| 10 ArgumentException => '-IMPL::InvalidArgumentException' | |
| 11 }, | |
| 12 base => { | |
| 13 'IMPL::Object' => undef, | |
| 14 'IMPL::Object::Autofill' => '@_' | |
| 230 | 15 }, |
| 16 props => [ | |
| 17 verifyNames => PROP_RO, | |
| 18 prefix => PROP_RO, | |
| 19 _pending => PROP_RW | |
| 20 ] | |
| 209 | 21 }; |
| 165 | 22 |
| 209 | 23 my $default; |
| 24 sub default { | |
| 25 $default ||= new IMPL::Code::Loader; | |
| 165 | 26 } |
| 27 | |
| 209 | 28 my $safe; |
| 29 sub safe { | |
| 30 $safe ||= new IMPL::Code::Loader(verifyNames => 1); | |
| 31 } | |
| 32 | |
| 230 | 33 sub CTOR { |
| 34 my ($this) = @_; | |
| 35 | |
| 36 $this->_pending({}); | |
| 209 | 37 } |
| 38 | |
| 165 | 39 sub Require { |
| 209 | 40 my ($this,$package) = @_; |
| 194 | 41 |
| 209 | 42 if ($this->verifyNames) { |
|
229
47f77e6409f7
heavily reworked the resource model of the web application:
sergey
parents:
209
diff
changeset
|
43 $package =~ m/^([a-zA-Z_0-9]+(?:::[a-zA-Z_0-9]+)*)$/ |
|
47f77e6409f7
heavily reworked the resource model of the web application:
sergey
parents:
209
diff
changeset
|
44 or die ArgumentException->new(package => 'Invalid package name') ; |
| 278 | 45 $package = $1; |
| 209 | 46 } |
| 194 | 47 |
|
229
47f77e6409f7
heavily reworked the resource model of the web application:
sergey
parents:
209
diff
changeset
|
48 $package = $this->prefix . '::' . $package if $this->prefix; |
| 194 | 49 |
| 209 | 50 my $file = join('/', split(/::/,$package)) . ".pm"; |
| 194 | 51 |
| 209 | 52 require $file; |
| 230 | 53 |
| 54 return $package; | |
| 55 } | |
| 56 | |
| 274 | 57 sub ModuleExists { |
| 58 my ($this,$package) = @_; | |
| 59 | |
| 60 my $file = join('/', split(/::/,$this->GetFullName($package))) . ".pm"; | |
| 61 | |
| 62 -f File::Spec->catfile($_,$file) and return 1 foreach @INC; | |
| 63 | |
| 64 return 0; | |
| 65 } | |
| 66 | |
| 230 | 67 sub GetFullName { |
| 68 my ($this,$package) = @_; | |
| 69 | |
| 70 if ($this->verifyNames) { | |
| 71 $package =~ m/^([a-zA-Z_0-9]+(?:::[a-zA-Z_0-9]+)*)$/ | |
| 72 or die ArgumentException->new(package => 'Invalid package name') ; | |
| 73 } | |
| 74 | |
| 75 return $this->prefix . '::' . $package if $this->prefix; | |
| 165 | 76 } |
| 77 | |
| 78 1; | |
| 79 |