Module: RAPI

Defined in:
lib/rapi.rb,
lib/rapi/registry.rb,
lib/rapi/remote_file.rb

Defined Under Namespace

Modules: Native, Util Classes: Enum, FileAttributes, FileInformation, OSVersionInfo, ProcessInformation, RAPIError, Registry, RemoteFile

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.copy_buffer_sizeObject

Returns the value of attribute copy_buffer_size



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# File 'lib/rapi.rb', line 11

def copy_buffer_size
  @copy_buffer_size
end

Class Method Details

.connect(timeout_seconds = 1) ⇒ Object



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# File 'lib/rapi.rb', line 19

def connect(timeout_seconds = 1)
  self.disconnect if connected?

  init = Native::Rapi::RAPIINIT.new
  init[:cbSize] = Native::Rapi::RAPIINIT.size
  ret = Native::Rapi.CeRapiInitEx(init)
  Util.handle_hresult! ret
  init_event = init[:heRapiInit]

  timeout = timeout_seconds * 4
  infinite_timeout = timeout < 0

  begin
    ret = Native::Kernel32.WaitForSingleObject(init_event, 250)

    if ret == Native::WAIT_FAILED || ret == Native::WAIT_ABANDONED
      Native::Rapi.CeRapiUninit
      raise RAPIError, "Failed to Initialize RAPI."
    end

    if !infinite_timeout
      if (timeout -= 1) < 0
        Native::Rapi.CeRapiUninit
        raise RAPIError, "Timeout waiting for device connection."
      end
    end
  end while ret != Native::WAIT_OBJECT_0

  @connected = true

  true

ensure

  Native::Kernel32.CloseHandle(init_event) if init_event
  init.to_ptr.free
end

.connected?Boolean



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# File 'lib/rapi.rb', line 13

def connected?
  # Try calling an arbitrary function.
  Native::Rapi.CeGetFileAttributes(Util.utf16le(""))
  Util.error != Native::CONNECTION_LOST
end

.copy(existing_file_name, new_file_name, overwrite = false) ⇒ Object



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# File 'lib/rapi.rb', line 160

def copy(existing_file_name, new_file_name, overwrite = false)
  success = Native::Rapi.CeCopyFile(Util.utf16le(existing_file_name), Util.utf16le(new_file_name), overwrite ? 0 : 1) != 0

  unless success
    Util.handle_hresult! Util.error, "Could not copy file."
  end

  true
end

.delete(file_name) ⇒ Object Also known as: rm



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# File 'lib/rapi.rb', line 170

def delete(file_name)
  attrs = get_attrs(file_name) rescue nil

  unless attrs
    Util.handle_hresult! Native::FILE_NOT_FOUND, "Could not delete file."
  end

  if attrs.directory?
    success = Native::Rapi.CeRemoveDirectory(Util.utf16le(file_name)) != 0
  else
    success = Native::Rapi.CeDeleteFile(Util.utf16le(file_name)) != 0
  end

  unless success
    Util.handle_hresult! Util.error, "Could not delete file."
  end

  true
end

.disconnectObject



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# File 'lib/rapi.rb', line 57

def disconnect
  Native::Rapi.CeRapiUninit

  true
end

.download(remote_file_name, local_file_name, overwrite = false) ⇒ Object



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# File 'lib/rapi.rb', line 90

def download(remote_file_name, local_file_name, overwrite = false)
  if !overwrite && File.exists?(local_file_name)
    raise RAPIError, "A local file with the given name already exists."
  end

  handle = Native::Rapi.CeCreateFile(Util.utf16le(remote_file_name), Native::GENERIC_READ, 0, 0, Native::OPEN_EXISTING, Native::FILE_ATTRIBUTE_NORMAL, 0)
  unless handle.valid?
    Util.handle_hresult! Util.error, "Could not open remote file."
  end

  mode = overwrite ? "wb" : "r+b"
  buffer = FFI::MemoryPointer.new(:char, @copy_buffer_size)
  bytes_read_ptr = FFI::MemoryPointer.new(:uint)

  File.open(local_file_name, "wb") do |f|
    while true
      success = Native::Rapi.CeReadFile(handle, buffer, buffer.size, bytes_read_ptr, 0) != 0
      unless success
        Util.handle_hresult! Util.error, "Failed to read device data."
      end

      bytes_read = bytes_read_ptr.get_int(0)

      if bytes_read != 0 && !success
        err = Util.error
        Native::Rapi.CeCloseHandle(handle)
        Util.handle_hresult! err, "Failed to read device data."
      elsif bytes_read == 0
        break
      end

      f << buffer.get_bytes(0, bytes_read)
    end

    f.truncate(f.pos)
  end

  true

ensure
  buffer.free if buffer
  bytes_read_ptr.free if bytes_read_ptr
  handle.close if handle
end

.exec(file_name, *args) ⇒ Object



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# File 'lib/rapi.rb', line 269

def exec(file_name, *args)
  args = if args.empty?
           nil
         else
           args.join(' ')
         end

  pi = Native::Rapi::PROCESS_INFORMATION.new

  if Native::Rapi.CeCreateProcess(Util.utf16le(file_name), Util.utf16le(args), nil, nil, 0, 0, nil, nil, nil, pi) == 0
    errnum = Native::Rapi.CeGetLastError
    Util.handle_hresult! errnum
  end

  ProcessInformation.new(pi)
end

.exist?(remote_file_name) ⇒ Boolean Also known as: exists?



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# File 'lib/rapi.rb', line 63

def exist?(remote_file_name)
  attrs = Native::Rapi.CeGetFileAttributes(Util.utf16le(remote_file_name))

  if attrs != 0xFFFFFFFF
    true
  else
    err = Util.error
    if err == Native::FILE_NOT_FOUND || err == Native::PATH_NOT_FOUND
      false
    else
      Util.handle_hresult! err
    end
  end
end

.get_attributes(file_name) ⇒ Object Also known as: get_attrs



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# File 'lib/rapi.rb', line 209

def get_attributes(file_name)
  ret = Native::Rapi.CeGetFileAttributes(Util.utf16le(file_name))
  success = ret != 0xFFFFFFFF

  unless success
    Util.handle_hresult! Util.error, "Could not get file attributes."
  end

  FileAttributes.new(ret)
end

.mkdir(path) ⇒ Object



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# File 'lib/rapi.rb', line 80

def mkdir(path)
  success = Native::Rapi.CeCreateDirectory(Util.utf16le(path), nil) != 0

  unless success
    Util.handle_hresult! Util.error, "Could not create directory."
  end

  true
end

.move(existing_file_name, new_file_name) ⇒ Object



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# File 'lib/rapi.rb', line 199

def move(existing_file_name, new_file_name)
  success = Native::Rapi.CeMoveFile(Util.utf16le(existing_file_name), Util.utf16le(new_file_name)) != 0

  unless success
    Util.handle_hresult! Util.error, "Could not move file."
  end

  true
end

.open(path, *rest) ⇒ Object



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# File 'lib/rapi.rb', line 299

def open(path, *rest)
  file = RemoteFile.new(path, *rest)
  if block_given?
    begin
      yield file
    ensure
      file.close
    end
  else
    file
  end
end

.osObject



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# File 'lib/rapi.rb', line 312

def os
  os = Native::Rapi::CEOSVERSIONINFO.new
  os[:dwOSVersionInfoSize] = Native::Rapi::CEOSVERSIONINFO.size
  success = Native::Rapi.CeGetVersionEx(os) != 0
  unless success
    raise RAPIError, "Error retrieving version information."
  end

  OSVersionInfo.new(os)
end

.rm_rf(path) ⇒ Object



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# File 'lib/rapi.rb', line 192

def rm_rf(path)
  search(path).each do |file|
    rm_rf(File.join(file.path, "*")) if file.directory?
    delete(file.path)
  end
end

.search(search_term) ⇒ Object Also known as: glob



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# File 'lib/rapi.rb', line 234

def search(search_term)
  file_infos = []

  ppFindDataArray = FFI::MemoryPointer.new(:pointer)
  count_ptr = FFI::MemoryPointer.new(:uint)
  success = Native::Rapi.CeFindAllFiles(Util.utf16le(search_term), 255, count_ptr, ppFindDataArray) != 0

  if !success && Util.error == Native::CONNECTION_LOST
    Util.handle_hresult! Native::CONNECTION_LOST
  end

  begin
    count = count_ptr.get_uint(0)
    if count > 0
      array_ptr = FFI::Pointer.new(Native::Rapi::CE_FIND_DATA, ppFindDataArray.get_pointer(0))
      directory = Util.sanitize_path(search_term)

      (0...count).each do |n|
        info = FileInformation.new(directory, Native::Rapi::CE_FIND_DATA.new(array_ptr[n]))
        file_infos << info
      end
    end
  end

  file_infos

ensure
  ppFindDataArray.free if ppFindDataArray
  array_ptr.free if array_ptr
  count_ptr.free if count_ptr
  Native::Rapi.CeRapiFreeBuffer(array_ptr) if array_ptr
end

.set_attributes(file_name, attributes) ⇒ Object Also known as: set_attrs



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# File 'lib/rapi.rb', line 222

def set_attributes(file_name, attributes)
  success = Native::Rapi.CeSetFileAttributes(Util.utf16le(file_name), attributes.to_i) != 0

  unless success
    Util.handle_hresult! Util.error, "Could not set device file attributes."
  end

  true
end

.tmpObject



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# File 'lib/rapi.rb', line 286

def tmp
  buffer = FFI::MemoryPointer.new(:uint16, Native::MAX_PATH + 1)
  temp_path = nil
  if Native::Rapi.CeGetTempPath(Native::MAX_PATH, buffer) != 0
    temp_path = Util.utf8(buffer.get_bytes(0, Native::MAX_PATH * 2))
  end

  temp_path

ensure
  buffer.free if buffer
end

.upload(local_file_name, remote_file_name, overwrite = false) ⇒ Object



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# File 'lib/rapi.rb', line 135

def upload(local_file_name, remote_file_name, overwrite = false)
  create = overwrite ? Native::CREATE_ALWAYS : Native::CREATE_NEW
  handle = Native::Rapi.CeCreateFile(Util.utf16le(remote_file_name), Native::GENERIC_WRITE, 0, 0, create, Native::FILE_ATTRIBUTE_NORMAL, 0)

  unless handle.valid?
    raise RAPIError, "Could not create remote file."
  end

  if File.size(local_file_name) != 0
    File.open(local_file_name, "rb") do |f|
      while buffer = f.read(copy_buffer_size)
        if Native::Rapi.CeWriteFile(handle, buffer, buffer.size, nil, 0) == 0
          Native::Rapi.CeCloseHandle(handle)
          raise RAPIError, "Could not write to remote file."
        end
      end
    end
  end

  true

ensure
  handle.close
end