Module: Pliney::AppleCodeSignature

Defined in:

lib/pliney/apple_code_signature.rb

Defined Under Namespace

Classes: Blob, BlobWrapper, CodeDirectory, DetachedSignature, EmbeddedSignature, Entitlement, LibraryDependencyBlob, OpaqueBlob, Requirement, RequirementSet, SuperBlob, UnknownBlob

Constant Summary

FADEMAGIC =

{
    0xfade0c00 => :Requirement,
    0xfade0c01 => :RequirementSet,
    0xfade0c02 => :CodeDirectory,
    0xfade0c05 => :LibraryDependencyBlob,
    0xfade0cc0 => :EmbeddedSignature,
    0xfade0cc1 => :DetachedSignature,
    0xfade0b01 => :BlobWrapper,
    0xfade7171 => :Entitlement,
}

Class Method Summary

• .from_path(fname) ⇒ Object
• .from_stream(f) ⇒ Object
• .parse(data) ⇒ Object

Class Method Details

.from_path(fname) ⇒ Object

# File 'lib/pliney/apple_code_signature.rb', line 244

def self.from_path(fname)
    return from_stream(File.open(fname, 'rb'))
end

.from_stream(f) ⇒ Object

# File 'lib/pliney/apple_code_signature.rb', line 231

def self.from_stream(f)
    obj = MachO::from_stream(f)
    mh = if MachO::is_fat_magic(obj.magic)
             obj.machos.first
         elsif MachO::is_macho_magic(obj.magic)
             obj
         else
             raise "Could not find mach-o object"
         end

    return mh.codesignature
end

.parse(data) ⇒ Object

# File 'lib/pliney/apple_code_signature.rb', line 216

def self.parse(data)
    obj = data.is_a?(StringStream)? data : StringStream.new(data)
    magic = obj.read_uint32
    n=FADEMAGIC[magic]
    if n.nil? and ((magic >> 16) == 0xFADE)
        n = :UnknownBlob
    end
    unless n.nil?
        blob=const_get(n).new(magic,obj) {|o| o.parse }
        return blob
    else
        raise "Invalid magic value: 0x#{magic.to_s(16)}"
    end
end