Ejemplo n.º 1
0
def get_metadata(stream):
    from calibre.ebooks.metadata import MetaInformation
    from calibre.ptempfile import TemporaryDirectory
    from calibre.ebooks.mobi.reader.headers import MetadataHeader
    from calibre.ebooks.mobi.reader.mobi6 import MobiReader
    from calibre.utils.img import save_cover_data_to
    from calibre import CurrentDir

    stream.seek(0)
    try:
        raw = stream.read(3)
    except Exception:
        raw = b''
    stream.seek(0)
    if raw == b'TPZ':
        from calibre.ebooks.metadata.topaz import get_metadata
        return get_metadata(stream)
    from calibre.utils.logging import Log
    log = Log()
    try:
        mi = MetaInformation(os.path.basename(stream.name), [_('Unknown')])
    except:
        mi = MetaInformation(_('Unknown'), [_('Unknown')])
    mh = MetadataHeader(stream, log)
    if mh.title and mh.title != _('Unknown'):
        mi.title = mh.title

    if mh.exth is not None:
        if mh.exth.mi is not None:
            mi = mh.exth.mi
    else:
        size = 1024**3
        if hasattr(stream, 'seek') and hasattr(stream, 'tell'):
            pos = stream.tell()
            stream.seek(0, 2)
            size = stream.tell()
            stream.seek(pos)
        if size < 4 * 1024 * 1024:
            with TemporaryDirectory('_mobi_meta_reader') as tdir:
                with CurrentDir(tdir):
                    mr = MobiReader(stream, log)
                    parse_cache = {}
                    mr.extract_content(tdir, parse_cache)
                    if mr.embedded_mi is not None:
                        mi = mr.embedded_mi
    if hasattr(mh.exth, 'cover_offset'):
        cover_index = mh.first_image_index + mh.exth.cover_offset
        data = mh.section_data(int(cover_index))
    else:
        try:
            data = mh.section_data(mh.first_image_index)
        except Exception:
            data = b''
    if data and what(None,
                     data) in {'jpg', 'jpeg', 'gif', 'png', 'bmp', 'webp'}:
        try:
            mi.cover_data = ('jpg', save_cover_data_to(data))
        except Exception:
            log.exception('Failed to read MOBI cover')
    return mi
Ejemplo n.º 2
0
def get_metadata(stream):
    from calibre.ebooks.metadata import MetaInformation
    from calibre.ptempfile import TemporaryDirectory
    from calibre.ebooks.mobi.reader.headers import MetadataHeader
    from calibre.ebooks.mobi.reader.mobi6 import MobiReader
    from calibre.utils.magick.draw import save_cover_data_to
    from calibre import CurrentDir

    stream.seek(0)
    try:
        raw = stream.read(3)
    except:
        raw = ''
    stream.seek(0)
    if raw == b'TPZ':
        from calibre.ebooks.metadata.topaz import get_metadata
        return get_metadata(stream)
    from calibre.utils.logging import Log
    log = Log()
    try:
        mi = MetaInformation(os.path.basename(stream.name), [_('Unknown')])
    except:
        mi = MetaInformation(_('Unknown'), [_('Unknown')])
    mh = MetadataHeader(stream, log)
    if mh.title and mh.title != _('Unknown'):
        mi.title = mh.title

    if mh.exth is not None:
        if mh.exth.mi is not None:
            mi = mh.exth.mi
    else:
        size = 1024**3
        if hasattr(stream, 'seek') and hasattr(stream, 'tell'):
            pos = stream.tell()
            stream.seek(0, 2)
            size = stream.tell()
            stream.seek(pos)
        if size < 4*1024*1024:
            with TemporaryDirectory('_mobi_meta_reader') as tdir:
                with CurrentDir(tdir):
                    mr = MobiReader(stream, log)
                    parse_cache = {}
                    mr.extract_content(tdir, parse_cache)
                    if mr.embedded_mi is not None:
                        mi = mr.embedded_mi
    if hasattr(mh.exth, 'cover_offset'):
        cover_index = mh.first_image_index + mh.exth.cover_offset
        data  = mh.section_data(int(cover_index))
    else:
        try:
            data  = mh.section_data(mh.first_image_index)
        except:
            data = ''
    if data and what(None, data) in {'jpg', 'jpeg', 'gif', 'png', 'bmp', 'webp'}:
        try:
            mi.cover_data = ('jpg', save_cover_data_to(data, 'cover.jpg', return_data=True))
        except Exception:
            log.exception('Failed to read MOBI cover')
    return mi
Ejemplo n.º 3
0
def get_metadata(stream):
    from calibre.ebooks.metadata import MetaInformation
    from calibre.ptempfile import TemporaryDirectory
    from calibre.ebooks.mobi.reader.headers import MetadataHeader
    from calibre.ebooks.mobi.reader.mobi6 import MobiReader
    from calibre import CurrentDir

    try:
        from PIL import Image as PILImage
        PILImage
    except ImportError:
        import Image as PILImage


    stream.seek(0)
    try:
        raw = stream.read(3)
    except:
        raw = ''
    stream.seek(0)
    if raw == b'TPZ':
        from calibre.ebooks.metadata.topaz import get_metadata
        return get_metadata(stream)
    from calibre.utils.logging import Log
    log = Log()
    try:
        mi = MetaInformation(os.path.basename(stream.name), [_('Unknown')])
    except:
        mi = MetaInformation(_('Unknown'), [_('Unknown')])
    mh = MetadataHeader(stream, log)
    if mh.title and mh.title != _('Unknown'):
        mi.title = mh.title

    if mh.exth is not None:
        if mh.exth.mi is not None:
            mi = mh.exth.mi
    else:
        size = 1024**3
        if hasattr(stream, 'seek') and hasattr(stream, 'tell'):
            pos = stream.tell()
            stream.seek(0, 2)
            size = stream.tell()
            stream.seek(pos)
        if size < 4*1024*1024:
            with TemporaryDirectory('_mobi_meta_reader') as tdir:
                with CurrentDir(tdir):
                    mr = MobiReader(stream, log)
                    parse_cache = {}
                    mr.extract_content(tdir, parse_cache)
                    if mr.embedded_mi is not None:
                        mi = mr.embedded_mi
    if hasattr(mh.exth, 'cover_offset'):
        cover_index = mh.first_image_index + mh.exth.cover_offset
        data  = mh.section_data(int(cover_index))
    else:
        try:
            data  = mh.section_data(mh.first_image_index)
        except:
            data = ''
    buf = cStringIO.StringIO(data)
    try:
        im = PILImage.open(buf)
    except:
        log.exception('Failed to read MOBI cover')
    else:
        obuf = cStringIO.StringIO()
        im.convert('RGB').save(obuf, format='JPEG')
        mi.cover_data = ('jpg', obuf.getvalue())
    return mi
Ejemplo n.º 4
0
Archivo: mobi.py Proyecto: sss/calibre
def get_metadata(stream):
    from calibre.ebooks.metadata import MetaInformation
    from calibre.ptempfile import TemporaryDirectory
    from calibre.ebooks.mobi.reader.headers import MetadataHeader
    from calibre.ebooks.mobi.reader.mobi6 import MobiReader
    from calibre import CurrentDir

    try:
        from PIL import Image as PILImage
        PILImage
    except ImportError:
        import Image as PILImage

    stream.seek(0)
    try:
        raw = stream.read(3)
    except:
        raw = ''
    stream.seek(0)
    if raw == b'TPZ':
        from calibre.ebooks.metadata.topaz import get_metadata
        return get_metadata(stream)
    from calibre.utils.logging import Log
    log = Log()
    try:
        mi = MetaInformation(os.path.basename(stream.name), [_('Unknown')])
    except:
        mi = MetaInformation(_('Unknown'), [_('Unknown')])
    mh = MetadataHeader(stream, log)
    if mh.title and mh.title != _('Unknown'):
        mi.title = mh.title

    if mh.exth is not None:
        if mh.exth.mi is not None:
            mi = mh.exth.mi
    else:
        size = 1024**3
        if hasattr(stream, 'seek') and hasattr(stream, 'tell'):
            pos = stream.tell()
            stream.seek(0, 2)
            size = stream.tell()
            stream.seek(pos)
        if size < 4 * 1024 * 1024:
            with TemporaryDirectory('_mobi_meta_reader') as tdir:
                with CurrentDir(tdir):
                    mr = MobiReader(stream, log)
                    parse_cache = {}
                    mr.extract_content(tdir, parse_cache)
                    if mr.embedded_mi is not None:
                        mi = mr.embedded_mi
    if hasattr(mh.exth, 'cover_offset'):
        cover_index = mh.first_image_index + mh.exth.cover_offset
        data = mh.section_data(int(cover_index))
    else:
        try:
            data = mh.section_data(mh.first_image_index)
        except:
            data = ''
    buf = cStringIO.StringIO(data)
    try:
        im = PILImage.open(buf)
    except:
        log.exception('Failed to read MOBI cover')
    else:
        obuf = cStringIO.StringIO()
        im.convert('RGB').save(obuf, format='JPEG')
        mi.cover_data = ('jpg', obuf.getvalue())
    return mi